old bitch gets fucked by two guys on the table

Zhejiang Yihong stainless steel pipeline equipment Co., Ltd! EN

High pressure fire fighting and water supply and drainage Stainless steel seamless steel pipe

4.1 high pressure water mist

4.1.1 general

1) This technical specification and corresponding drawing contents stipulate Comprehensive pipe gallery project of Nanjing Jiangbei new area High pressure water mist fire extinguishing system The bidder shall be responsible for the in-depth design of the system, the supply, transportation, installation, wiring and opening of the equipment and all accessories required by the system, as well as the acceptance, training, maintenance of relevant local departments, other services required by this technical specification and corresponding drawings, and other supporting and perfect services foreseen by experienced bidders, Until delivered to the buyer for use.

2) The facilities provided by the bidder must be a complete system. The above scope shall not only include the main equipment and items specified in the technical specifications and drawings, but also all the equipment, interfaces, accessories and items required for the normal operation of the system, including the necessary labor costs, shall be included in the scope of the project.

3) The materials, appliances and equipment provided by the bidder shall comply with the laws, regulations and relevant regulations of the Chinese government.

4) The design of high pressure water mist fire extinguishing system for utility tunnel project shall comply with national and local regulations.

5) According to the particularity of the project, the equipment in the pipe rack shall meet the requirements of waterproof and moisture-proof, local climate and site operation environment conditions.

6) If there is any inconsistency in the standards, technical requirements, drawings and equipment list involved in this bidding, if the system diagram is inconsistent with the plan, the system drawing shall prevail, and the plan is only for reference.

7) The bidder shall carry out in-depth design according to the drawings and actual situation. The bidder must provide all necessary supporting equipment and accessories in accordance with the requirements of this document, regardless of whether these equipment are listed in detail in the document, and the system integrator shall modify and adjust the control software according to the site requirements. The bidder must make a complete quotation for the equipment and service cost of the whole function.

8) The supplier of water mist system shall Comprehensive pipe gallery project of Nanjing Jiangbei new area For the physical fire simulation test, the corresponding test report shall be provided, and the products meeting the requirements of the project shall be provided according to the test results.

9) Fire fighting equipment shall meet the requirements of CCCF certification.


 High pressure stainless steel pipe (Fig. 2)

Stainless steel seamless steel pipe for high pressure fire protection



4.1.2 scope of work

The bid winner shall be responsible for the contents of high pressure water mist fire extinguishing system of the whole project. Including but not limited to:

1) The bidder shall complete the system design, equipment selection, equipment design and manufacturing, factory inspection, transportation, storage, installation guidance, commissioning and preliminary inspection, trial operation, final acceptance and after-sales service according to the technical specifications and drawings of self-instrument, electrical, civil engineering, HVAC, drainage and fire-fighting drawings provided by the owner, and hand over the required data to the end user in the above order.

2) This chapter only refers to the main requirements of the high pressure water mist fire extinguishing system for the comprehensive pipe gallery project in Jiangbei new area, Nanjing, and shall not be regarded as a complete and detailed requirement. The bidder shall provide detailed requirements for components, accessories, software, tools, etc., which are not described in this chapter but are necessary for normal and effective operation of the equipment, and provide detailed description of relevant functions in the bidding document, And ensure to meet the requirements of the bidding documents and the potential requirements of the end users.

3) When bidding, the bidder must submit the samples and relevant test reports of the bidding products according to the requirements of the bidding documents. In case of any contradiction between the bidding documents and the samples or test reports, the samples or test reports shall prevail (the test reports shall prevail). For the selection of foreign equipment, main components and accessories, the bidding document shall provide the product manufacturer and the origin description and certificate of origin of the goods.

4) In the process of construction, if the bid winner thinks that it is necessary to revise some contents in the drawings, the corresponding modification of drawings shall be completed by the bid winner and confirmed by the supervisor, the owner and the design institute.

5) Ensure that each system is complete in all details and in good working condition at the time of handover.

6) Various components required to achieve the correct functions specified in the technical specifications must be provided. Whether these parts are specifically mentioned in the technical specification or not.

7)   The design documents and drawings provided must have modifiable Electronic Version (word, Excel and autocad2010 Chinese version).

8) Hand over the data in accordance with the requirements of this technical specification according to the work sequence, including product samples, operation and maintenance manuals, as built drawings. All data shall meet the technical requirements of the technical specification (Chinese version).

9) Coordination with other bidders, engineering service departments and government agencies.


4.1.3   High pressure water mist Fire fighting system

1) Project overview

The project is Comprehensive pipe gallery project of Nanjing Jiangbei new area High pressure water mist fire extinguishing system The main protection areas are power cabin and comprehensive cabin, and the net height of pipe gallery protection shall not exceed 3m。 According to the fire type of the project and considering its fire characteristics, open system with local application is selected. The protection radius of each water mist pump house shall not exceed 4km.

High pressure water mist fire extinguishing system mainly includes but is not limited to: high pressure water mist pump group (including main pump, stabilized pressure pump, water tank, water supplement device, pump control cabinet, etc.), water mist nozzle, filter, regional control valve group, stainless steel pipe, etc.

2) design basis

The design, installation and acceptance of the system shall comply with the following standards, but not limited to the following standards. In case of any inconsistency between the two standards, the highest standard shall be followed, and all standards shall adopt the latest version since the effective date of the contract:

Ø  Code for fire protection design of buildings GB 50016-2014 (2018 Edition)

Ø  Code for design of building water supply and drainage GB 50015-2003 (2009 Edition)

Ø  Technical specification for water mist fire extinguishing system GB50898-2013

Ø  Code for design of sprinkler systems GB50084-2017

Ø  Code for construction and acceptance of sprinkler system GB50261-2017

Ø  Code for design of water spray fire extinguishing system GB50219-2014

Ø  Code for design of automatic fire alarm system GB50116-2013

Ø  Code for construction and acceptance of automatic fire alarm system GB50166-2007

Ø  General code for construction and acceptance of mechanical equipment installation engineering GB50231-2009

Ø  Code for construction of industrial metal pipeline engineering GB50235-2010

Ø  Code for construction of welding engineering of field equipment and industrial pipeline GB50236-2011

Ø  Code for construction and acceptance of fan, compressor and pump installation engineering GB50275-2010

Ø  Unified standard for construction quality acceptance of building engineering GB50300-2013

Ø  General specification for water mist fire extinguishing systems and components GB/T26785-2011

Ø  Fire fighting linkage control system GB16806-2006

Ø  Recommended groove for gas welding, shielded metal arc welding, gas shielded arc welding and high energy beam welding GB/T985.1-2010

Ø  Stainless steel seamless steel pipe for fluid transportation GB/T14976-2012

Ø  Grades and chemical composition of stainless and heat resistant steels GB/T20878-2007

Ø  Water mist fire extinguishing device GA1149-2014

Ø  Inspection report tested by national quality supervision and Inspection Center for fixed fire extinguishing system and fire resistant components

Ø  Drawings and related information

3) Environmental conditions of equipment operation

Installation site:

indoor

Environmental climate:

+5℃—+40℃

Indoor maximum environmental humidity:

Indoor monthly average ≤ 90%, daily average ≤ 95%

Supply voltage:

380V ± 5%; 220V ± 5%

4) Design parameters

Ø  Design spray intensity: 1.0L/min.m two

Ø  The continuous spraying time of the system is not less than 30min。

Ø  The response time of open system is not more than 30s。

Ø  The working pressure of the nozzle at the most unfavorable point is not less than 10MPa。

4.1.4 equipment technical requirement

1) The products provided by the bidder must be certified by the fire product qualification assessment center of the Ministry of public security and the national quality supervision and Inspection Center for fixed fire extinguishing systems and fire-resistant components, and provide the China national compulsory product certification certificate issued by the fire product qualification assessment center of the Ministry of public security, and the inspection report issued by the national quality supervision and Inspection Center for fixed fire-fighting systems and fire-resistant components, And the model of the bidding product is reflected in the inspection report issued by the national quality supervision and Inspection Center for fixed fire extinguishing system and fire-resistant components, and the bidding documents shall be provided.

2) Unless otherwise specified in the design documents, all current relevant codes, regulations, standards and measures issued by the state and relevant ministries and commissions are applicable to the project. The relevant text descriptions in the design drawings and other design documents are an integral part of the technical requirements of the project.

3) For the work involving new technology, new process and new material, the contents of corresponding manufacturer's instructions or operation instructions, or the contents of applicable foreign similar standards are also part of the technical requirements of the project.

4) For the equipment supplied by the bidder, the design standards and specifications, product standards, engineering standards and specifications involved in installation and commissioning must comply with the latest legal responsibilities, regulations and specifications.

5) If the bidder wins the bid, it must optimize the design according to the actual situation of the project, and provide corresponding drawings, which shall be submitted to the design institute and the fire department for approval.

6) After winning the bid, the bidder shall provide detailed information of high-pressure water mist equipment to ensure that the configuration of all equipment meets the national requirements.

7) After winning the bid, the bidder shall provide the system installation manual, operation manual and maintenance manual to ensure the normal operation of the system.

8) The bidder shall submit the materials and equipment data required by the system, including the detailed catalogue of each component or device of the system, the list of spare parts and technical parameters.

9) System equipment manufacturers must pass ISO9001 certification.

10) If the bidder is an agent, the manufacturer's authorization must be provided.

4.1.5 system technology requirement

1) The maximum design working pressure of high pressure water mist system is 14 MPa; The make-up water pressure of the pump set shall not be less than 0.2MPa and not more than 0.6MPa, and normal and continuous water supply shall be ensured.

2) The continuous water supply and spraying capacity of the high pressure water mist fire extinguishing system shall not be less than 30 min;

3) The response time of high pressure water mist open system is no more than 30s;

4) The flow rate of the open system is calculated according to the sum of the flow rate of the number of nozzles acting at the same time in the protection zone. The design working pressure of the system is calculated according to the minimum working pressure of the nozzle at the most unfavorable point of 10MPa, and the calculation formula is Darcy weisbach (Darcy weisbach) formula. The pump unit has its own control cabinet.

5) The system adopts single fluid high pressure water mist system. Under the minimum working pressure, the cumulative volume distribution parameter dv0.99 ≤ 200 μ m,Dv0.50≤100 μ m。 Supporting materials shall be provided in the tender documents.

6) This project should adopt water tank pressurization water supply mode. Each system is equipped with two booster pumps, one for use and one for standby. When the water supply solenoid valve of the high-pressure water mist pump group is opened, the booster pump is started at the same time. Each system is equipped with a stainless steel water storage tank. The fabrication and installation requirements of the water tank refer to the national standard 12s101 rectangular water supply tank atlas.

4.1. six System composition

High pressure water mist system It is composed of high pressure water mist pump group (including main pump, stabilized pressure pump, regulating water tank, water supplement device, pump control cabinet), water mist nozzle, filter, regional control valve group, stainless steel pipe, etc

1) High pressure pump group:

a. The high-pressure pump group shall be composed of high-pressure pump, stabilized pressure pump, pump control cabinet, water tank (including liquid level display and controller), water tank inlet filter and solenoid valve, safety relief valve, pressure sensor, rack, connecting pipe, valve parts, etc. The liquid level controller realizes the automatic water supply to the water tank; The safety relief valve is used to regulate the outlet pressure of the pump group; The main material of pump unit is stainless steel, and all parts are made of anti-corrosion material. The main pump of high pressure pump group shall be imported components.

b. The high-pressure pump group is a plunger vertical stainless steel high-pressure plunger pump, water self-lubricating and maintenance free, which should meet the flow and pressure requirements of the system. The flow rate of single pump in the high-pressure water mist pump group is 100 ~ 115l / min, the working pressure is 14MPa, and the single pump power is 30kW. The operation should be stable and reliable. The pump set should be compact in structure, small in floor area and volume. The pump shall adopt self filling suction or other reliable water diversion methods.

c. The pump shall have automatic and manual start-up function and inspection function. When receiving the start-up instruction during the inspection, it should be able to exit the patrol immediately and enter the normal operation state; The working status and power supply status of pumps or other water supply equipment shall be able to be monitored in the fire duty room.

d. Each set of pump set shall be equipped with a standby pump, and the model of the standby pump is the same as that of the main pump. The working performance of the standby pump shall be the same as that of the largest working pump. The main and standby pumps shall have the function of automatic switching, and shall be able to stop the pump manually. The automatic switching time of the main and standby pumps shall not be greater than 30s.

e. The insulation grade of motor shall not be lower than F; The protection level shall not be lower than IP55.

Stabilized pressure pump:

a. In the non fire state of the system, the pressure of the pipe network is maintained by the pressure stabilizing pump, which can compensate the small pressure fluctuation and leakage.

b. Stainless steel or copper alloy shall be used as the material of stabilized pressure pump.

c. The bidder shall provide the starting mode of the stabilized pressure pump, and provide the detailed technical and functional parameters of the stabilized pressure pump.

d. The flow rate of the stabilized pressure pump is 11.8l/min and the working pressure is 1.4mpa.

Pump unit control cabinet:

The control cabinet of pump set shall be controlled by PLC, and its function shall meet the requirements of system control, and the products of international famous brand and equivalent grade shall be adopted. It shall have manual and automatic start-up functions, and manual / automatic transfer switch shall be set on the control panel. The control cabinet shall be equipped with double power automatic switching device; The protection level shall not be lower than IP55.

Water tank:

The water tank shall be of closed structure and made of stainless steel or other materials that can ensure water quality;   The water tank shall be provided with dust-proof and light-proof technical measures; The water storage tank shall be equipped with automatic water replenishment device, and shall be equipped with liquid level display, high and low liquid level alarm device, overflow, ventilation and vent device; The make-up water flow of the water storage tank shall not be less than the design flow of the system.

Make up water solenoid valve:

The water supply solenoid valve of the pump group regulating water tank is compared by the water level of the water tank and the set value of the water level by the PLC monitoring module of the water pump control cabinet. When the liquid level of the water tank is lower than the preset water level, open the water supplement solenoid valve of the water tank to make up water for the water tank. When the liquid level of the water tank reaches the preset level, the solenoid valve for water replenishment of the water tank will be closed. The main components of the water supply solenoid valve are made of stainless steel. The input voltage shall be AC 220 v.

Safety relief valve:

It is used to adjust the outlet pressure of the pump set. When the outlet pressure exceeds the outlet pressure design of the pump set, the bypass pipe passes through the safety relief valve to bypass the water tank, so that the pipe network pressure is constant within the design value, and the system provides overpressure protection. The pressure of safety relief valve is set to 1.15 times of working pressure.

filter:

The water inlet pipe of the water tank shall be equipped with a filter, and the material of the filter shall be stainless steel, copper alloy or other materials with equivalent corrosion resistance; The maximum filter size of the filter shall not be greater than 10 µ m. At the same time, it needs to be less than 80% of the minimum flow path of the nozzle. The filter shall be equipped with bypass pipe and bypass emergency valve (normally closed state), so that the operation of fire extinguishing system will not be affected in case of filter failure. At the same time, the two ends of the filter must be equipped with maintenance valve to facilitate the maintenance and repair of the filter. The working pressure of filter should be 0.2 ~ 0.6    Mpa。

2)   Area control valve group

a. Open area control valve group and pre action area valve group shall be composed of electric valve, water control ball valve, pressure switch, pressure gauge and connecting pipeline. The main material of valve group shall be stainless steel; The input voltage shall be AC220V / 1a.

b. The water mist area control valve group has manual start function, which can be used for electric and mechanical emergency start;

c. The outlet of the control valve group in the water mist area shall be equipped with a test water discharge device for debugging and testing the system.

d. The water mist area control valve group can output pressure switch feedback signal and electric valve opening signal.

e. The local resistance loss of open partition valve is not more than 0.1MPa.

3)   Nozzle

a. The high pressure water mist nozzle is composed of a micro nozzle and a nozzle body. The nozzle is made of austenitic stainless steel, with stainless steel filter screen inside. The maximum diameter of the filter screen is 35% of the minimum diameter of the nozzle water channel. The nozzle shall be smooth and clean without machining defects and mechanical damage.

b. The minimum working pressure of nozzle shall not be less than 10MPa; The installation spacing of sprinkler heads shall not be greater than 3.0m, not less than 1.5m, and not more than 1.5m from the wall.

c. Droplet diameter of water mist D V0.99 ≤400 µ m。

4)   Pipe network and accessories

a. The austenitic stainless steel pipe (grade 022cr17ni12mo2 (s31603)) made by cold drawing method shall be adopted for the system pipeline. The material and performance of the pipeline shall comply with the relevant provisions of the current national standards: stainless steel seamless steel pipe for fluid transportation (GB / T 14976-2012) and stainless steel welded steel pipe for fluid transportation (GB / T 12771-2008). It is necessary to ensure that the port is flush and straight, the material of system pipe connector shall be the same as that of pipeline, and the system pipe shall be connected with special joint, flange, thread, ring pressure pipe fitting or hydrogen arc welding.

b. Casing shall be installed at the place where the pipe passes through the wall and floor slab. The length of the casing through the wall shall be equal to the wall thickness. The length of the casing passing through the floor shall be 50 mm higher than the ground. The gap between the pipe and the sleeve shall be filled with flexible non combustible material.

c. The system pipeline shall be fixed on the building components with anti sway metal support and frame. The supports and supports shall be able to bear the weight and impact when the pipeline is full of water. The pipeline shall be fixed firmly, and the rubber pad or asbestos pad shall be used for insulation between the pipe and the support and hanger. The maximum distance between the supports and hangers shall be in accordance with the table below. The end of the pipe shall be fixed with supports, and the length of the pipe between the support and the nozzle shall not be greater than 250mm.

Pipe diameter (mm)

twelve

twenty-two

twenty-seven

thirty-four

forty-two

forty-eight

sixty

seventy-six

eighty-nine

Nominal diameter

DN10

DN15

DN20

DN25

DN32

DN40

DN50

DN65

DN80

Installation spacing (m)

one point five

one point eight

two point two

two point five

two point eight

two point eight

three point two

three point eight

three point eight

 

d. After the pipeline system is installed, hydraulic strength test and air tightness test shall be carried out. The test pressure of water pressure strength is 1.5 times of the design working pressure of the system. The pressure test device is used to slowly increase the pressure to the test pressure. After the pressure is stabilized for 5min, the pipeline is free of damage and deformation. Then the test pressure is reduced to the design pressure, and the pressure is stabilized for 120min. It is qualified that the pressure does not drop, there is no leakage and no deformation of the pipeline by visual inspection. After passing the hydraulic strength test, purging shall be carried out. Compressed air or nitrogen can be used for purging pipeline. Check with white cloth until there is no rust, dust, water stain and other swelling.

5) Working principle, operation and control of high pressure water mist system

a. Working principle of open system

Under the quasi working condition, the pressure of the pipe network from the outlet of the pump set to the front of the regional valve is maintained by the pressure stabilizing pump at 1.0-1.2mpa, and the pipe is empty after the valve. In case of fire, the fire alarm system will open the corresponding regional control valve and main pump to spray water mist to extinguish the fire; Or manually open the corresponding regional control valve, the pipe network depressurizes and automatically starts the main pump to spray water mist to extinguish the fire. After the personnel confirmed that the fire was extinguished, the main pump and regional control valve were closed manually, the fire alarm system was reset, the pipe network was restored and the system was reset.

b. Open system control mode

In case of fire, the open system should have three control modes: automatic control, manual control and emergency operation.

Automatic control: the alarm host of the high-pressure water mist fire-extinguishing system will start the fire alarm through linkage after receiving the alarm from one detector in the fire-fighting zone; After receiving the alarm from the two detectors, the audible and visual alarm will be opened in linkage, and the fire signal will be confirmed. The corresponding regional control valve and main pump will be opened in turn to spray water mist to extinguish the fire. The pressure switch in the area valve group feeds back the spray signal of the system, and the fire alarm host linkage opens the corresponding spray indicator.

Manual control: when the on-site personnel confirm the fire and the automatic control has not been activated, press the manual start button of the corresponding regional control valve, open the regional control valve, depressurize the pipe network, and automatically start the main pump to spray water mist to extinguish the fire; Or press the corresponding manual alarm button to open the corresponding regional control valve and main pump, and spray water mist to extinguish the fire. The pressure switch in the area valve group feeds back the spray signal of the system, and the fire alarm host linkage opens the corresponding spray indicator.

Emergency operation: when the automatic control and manual control fail, manually operate the emergency handle of the regional control valve, open the corresponding regional control valve, depressurize the pipe network, and automatically start the main pump to spray water mist to extinguish the fire. The pressure switch in the area valve group feeds back the spray signal of the system, and the fire alarm host linkage opens the corresponding spray indicator.

4.1.7 and other systems Interface requirement

1) Requirements for interface with Architectural Specialty

a. The foundation shall be set for the high pressure water mist pump set in the high pressure water mist pump group.

b. Holes shall be reserved for the installation of sectional control valves.

2) Requirements for interface with water supply and drainage specialty

a. The water supply and drainage specialty shall provide 2-way fire water supply source with the water supply flow of no less than 448l / min and lead to the high-pressure water mist pump room. The material shall be galvanized welded steel pipe meeting the requirements, connected by grooves, and installed in place according to the requirements of national specifications.

b. Drainage facilities such as floor drain and drainage ditch are set in the pump room.

3) Interface requirements with power supply specialty

a. The power distribution system shall provide two circuits of AC380V / 120kw and AC380V / 4kw power supply for each pump set to the fire pump room, and the interface position is set in the control cabinet of high-pressure water mist pump set and booster pump set. The inlet hole is on the bottom plate of the pump unit control cabinet, and the metal shell of the equipment shall be grounded.

b. The power distribution system needs to provide a DC24 V / 5A fire special power line for each set of area control valve to each high-pressure water mist area control valve box on site, and the interface position is on the terminal block in the control valve box of water mist area.

3) Requirements for HVAC specialty

a. Before fire extinguishing, fire damper of corresponding ventilation and air conditioning system shall be closed automatically. And automatically close the fire door in the protection area and cut off all combustible and combustion supporting gas sources;

b. After the implementation of fire fighting, the room should be ventilated.

4.2 fire extinguisher

4.2.1 General

1) The technical specifications and corresponding drawings specify the scope of work of fire extinguisher (and fire extinguisher box) for the comprehensive pipe gallery project in Jiangbei new area, Nanjing. The bidder shall be responsible for the detailed design of the system, the supply, transportation, installation of the equipment and all accessories required by the system, as well as the acceptance, training, repair and maintenance of the relevant local departments Other services required by the technical specifications and corresponding drawings, and other supporting and perfect services foreseen by experienced bidders until they are delivered to the buyer for use.

2) The facilities provided by the bidder must be a complete system. The above scope shall not only include the main equipment and items specified in the technical specifications and drawings, but also all the equipment, interfaces, accessories and items required for the normal operation of the system, including the necessary labor costs, shall be included in the scope of the project.

3) The materials, appliances and equipment provided by the bidder shall comply with the laws, regulations and relevant regulations of the Chinese government.

4) The design of fire extinguisher (and fire extinguisher box) system in utility tunnel shall comply with national and local regulations.

5) According to the particularity of the project, the equipment in the pipe rack shall meet the requirements of waterproof and moisture-proof, local climate and site operation environment conditions.

6) If there is any inconsistency in the standards, technical requirements, drawings and equipment list involved in this bidding, if the system diagram is inconsistent with the plan, the system drawing shall prevail, and the plan is only for reference.

7) Fire fighting equipment shall meet the requirements of CCCF certification.

4.2.2 supply commodity Scope

Fire extinguisher, fire extinguisher box and accessory accessories of Comprehensive Pipe Gallery Project in Jiangbei new area, Nanjing.

4.2.2 technical standards for fire extinguisher (and fire extinguisher box)

Unless otherwise specified, materials shall meet the requirements of design, drawings and relevant national, industrial and local standards, mainly including but not limited to:

1) Engineering standards

a. Code for fire protection design of buildings GB 50016-2014 (2018 Edition)

b. Code for design of extinguisher distribution in buildings (GB 50140-2005)

c. Code for acceptance of construction quality of building water supply and drainage and heating engineering GB 50242-2002

d. Code for acceptance and inspection of fire extinguisher in buildings GB 50444-2008

2) Product standards

a. Dry powder fire extinguishing agents Part 2: ABC dry powder fire extinguishing agents GB 4066.2-2016

b. Portable fire extinguishers Part 1: performance and structural requirements GB 4351.1-2005

c. Superfine dry powder extinguishing agent GA 578-2005

d. Fire extinguisher box GA 139-2009

4.2.3 submission

1) Product data

a. Provide a set of complete, clear and correct Chinese technical data of the manufacturer about fire extinguisher and fire extinguisher box, including Catalog Index, product specification and other documents.

b. Provide a copy of the product inspection report issued by the state recognized or recognized testing organization within the validity period.

c. Provide the typical cases of the products used in Jiangsu Province, including the application life and effect

2) Certification

a. Qualification certificate of the manufacturer, including business license, organization code, tax registration certificate, power of attorney (for agent products), etc.

b. All kinds of certification certificates to prove that the products meet or exceed the specified requirements, such as ISO 9000 and ISO 14000 certification.

3) Manufacturer's installation instructions

Describe in detail the problems needing special attention of fire extinguisher and fire extinguisher box products in the project and the requirements of service environment.

4) Maintenance requirements

Provide relevant information about maintenance procedures.

5) Warranty

Submit manufacturer's warranty.

4.2.3 quality ensure

1) Manufacturer qualification

It has been engaged in the production of fire extinguisher and fire extinguisher box for more than 10 years, and the manufacturer should have the ability of routine test and special test.

2) Manufacturer technical support

If necessary, the manufacturer or agent of fire extinguisher and fire extinguisher box shall provide on-site technical guidance and participate in the service work such as completion acceptance. If necessary, follow the progress of the project, cooperate with the project acceptance, and provide written report records.

4.2.4 packaging

1) The paper packing box can be used as the outer packing for the body of fire extinguisher and fire extinguisher box, and the package shall ensure that it will not be damaged during transportation.

The package shall be marked with: fire extinguisher: name of fire extinguisher, model of fire extinguisher, type of fire extinguishing agent, manufacturer and address of fire extinguisher, production year, standard number of production basis, etc; Fire extinguisher box: product name, etc.

4.2.5 transport

1) Product packaging should be safe and reliable to ensure that the product will not be damaged by machinery during transportation and storage.

2) The random documents and packing documents shall be sealed with waterproof plastic bags, including product certificate, product instruction manual and packing list.

4.2.6 storage

It should be stored vertically in a dry and ventilated warehouse without corrosive media. When stored outdoors, they should be stacked in order to avoid the sun and rain.

4.2. seven Supply plan

According to the contract signed with the manufacturer.

4.2.8 service promise

1)   The Contractor shall undertake the maintenance work within 2 years after the completion of the project. Under normal use, the cost of removal and replacement due to quality reasons shall be borne by the contractor.

2) Fire extinguisher products should have perfect sales and after-sales service system in China, and provide after-sales organization information in Jiangsu (or adjacent areas).

4.2.9 products

Product (material) requirements

1) The fire extinguisher shall be filled with dry powder fire extinguishing agent meeting the requirements of dry powder fire extinguishing agents Part 2: ABC dry powder fire extinguishing agents gb4006.2-2016.

2) The specification and type of the box shall meet the design requirements, and the surface of the box shall be smooth and smooth. The metal box has no rust and scratch, and the door can be opened flexibly. Products should have product certificate and be approved by fire department. The cabinet should meet the requirements of "fire extinguisher box" GA 139-2009, and tested by the national quality supervision and Inspection Center for fixed fire extinguishing system and fire-resistant components, and all indicators meet the standard requirements.

3) The external surface of the fire extinguisher is red finish. The appearance color of fire extinguisher box (cabinet) shall be bright red, and its front face shall be marked with Chinese "fire extinguisher" and English "fire extinguisher" in straight, eye-catching and neat fonts. The height of Chinese font shall not be less than 60mm, and the width shall not be less than 30mm.

4) There should be luminous signs on the fire extinguisher body and the fire extinguisher box to identify the location of the fire extinguisher in the dark.

5) The surface of the fire extinguisher cylinder shall be pasted or printed on the cylinder body, and shall include the following contents:

a. Name of fire extinguisher, model of fire extinguisher and type of fire extinguishing agent.

b. The level and type of fire extinguisher.

c. Temperature range of fire extinguisher.

d. Name or pressure of driving gas for fire extinguisher.

e. The hydrostatic test pressure of fire extinguisher (steel seal shall be applied to the bottom ring or neck ring of the fire extinguisher that is not subject to internal pressure).

f. Production serial number of fire extinguisher (it can be printed on the name plate or stamped on the bottom ring without pressure).

j. The year of manufacture of the fire extinguisher (permanently marked on the extinguisher with a steel stamp).

k. Name or code of fire extinguisher manufacturer.

9) How to use the fire extinguisher.

10) Daily maintenance instructions.

4.3 low pressure drainage system

4.3.1 General

1) This technical specification and corresponding drawing contents stipulate Comprehensive pipe gallery project of Nanjing Jiangbei new area The bidder shall be responsible for the in-depth design of the system, the supply, transportation, installation, wiring and opening of the equipment and all accessories required by the system, as well as the acceptance, training, repair and maintenance of relevant local departments Other services required by the technical specifications and corresponding drawings, and other supporting and perfect services foreseen by experienced bidders until they are delivered to the buyer for use.

2) The facilities provided by the bidder must be a complete system. The above scope shall not only include the main equipment and items specified in the technical specifications and drawings, but also all the equipment, interfaces, accessories and items required for the normal operation of the system, including the necessary labor costs, shall be included in the scope of the project.

3) The materials, appliances and equipment provided by the bidder shall comply with the laws, regulations and relevant regulations of the Chinese government.

4) The design of pressure drainage system of utility tunnel project should comply with the national and local regulations.

5) According to the particularity of the project, the equipment in the pipe rack shall meet the requirements of waterproof and moisture-proof, local climate and site operation environment conditions.

6) If there is any inconsistency in the standards, technical requirements, drawings and equipment list involved in this bidding, if the system diagram is inconsistent with the plan, the system drawing shall prevail, and the plan is only for reference.

7) The bidder shall carry out in-depth design according to the drawings and actual situation. The bidder must provide all necessary supporting equipment and accessories in accordance with the requirements of this document, regardless of whether these equipment are listed in detail in the document, and the system integrator shall modify and adjust the control software according to the site requirements. The bidder must make a complete quotation for the equipment and service cost of the whole function.

4.3.2 work Scope

The successful bidder shall be responsible for the contents of the whole project pressure drainage system. Including but not limited to:

1) The bidder shall complete the system design, equipment selection, equipment design and manufacturing, factory inspection, transportation, storage, installation guidance, commissioning and preliminary inspection, trial operation, final acceptance and after-sales service according to the technical specifications and drawings of self-instrument, electrical, civil engineering, HVAC, drainage and fire-fighting drawings provided by the owner, and hand over the required data to the end user in the above order.

2) This chapter refers only to Comprehensive pipe gallery project of Nanjing Jiangbei new area The main requirements of the pressure drainage system shall not be regarded as complete and detailed requirements. The bidder shall provide detailed requirements for components, accessories, software, tools, etc. which are not described in this chapter but are necessary for normal and effective operation of the equipment, and provide detailed description of relevant functions in the bidding document, and ensure that the requirements of the bidding document and the potential requirements of the end user are met.

3) The tender documents must contain the manufacturer of the equipment, main parts and accessories, and the origin description and certificate of the goods. When bidding, the bidder must submit the samples and relevant test reports of the bidding products according to the requirements of the bidding documents. In case of any contradiction between the bidding documents and the samples or test reports, the samples or test reports shall prevail (the test reports shall prevail).

4) In the process of construction, if the bid winner thinks that it is necessary to revise some contents in the drawings, the corresponding modification of drawings shall be completed by the bid winner and confirmed by the supervisor, the owner and the design institute.

5) Ensure that each system is complete in all details and in good working condition at the time of handover.

6) Various components required to achieve the correct functions specified in the technical specifications must be provided. Whether these parts are specifically mentioned in the technical specification or not.

7) The design documents and drawings provided must have modifiable Electronic Version (word, Excel and AutoCAD 2010 Chinese version).

8) Hand over the data in accordance with the requirements of this technical specification according to the work sequence, including product samples, operation and maintenance manuals, as built drawings. All data shall meet the technical requirements of the technical specification (Chinese version).

9) Coordination with other bidders, engineering service departments and government agencies.

4.3.4 pressure drainage system

1) Project overview

The project is a comprehensive pipe gallery project in Jiangbei new area, Nanjing The pressure drainage system is mainly used for drainage of accumulated water in pipe gallery and pressure drainage system Mainly including but not limited to: drainage pump group, pipeline, valve, etc.

2) Design basis

The design, installation and acceptance of the system shall comply with the following standards, but not limited to the following standards. In case of any inconsistency between the two standards, the highest standard shall be followed, and all standards shall adopt the latest version since the effective date of the contract:

Ø  Code for design of building water supply and drainage GB 50015-2003 (2009 Edition)

Ø  Code for acceptance of construction quality of building water supply and drainage and heating engineering GB 50242-2002

Ø  Code for construction and acceptance of fan, compressor and pump installation engineering GB 50275-2010

Ø  Technical conditions for centrifugal pumps (Class III) GB / T 5657-2013

Ø  Submersible sewage pump GB/T 24674-2009

Ø  Small submersible pump GB/T 25409-2010

Ø  Pump without blockage CJ/T 203-2000

Ø  Submersible sewage pump CJ/T 3038-1995

Ø  Small submersible pump JB/T 8092-2006

Ø  Technical requirements for environmental protection products Submersible sewage pump HJ/T 336-2006

Ø  Determination method of pump flow GB/T 3214-2007

Ø  Hydraulic performance acceptance test of rotary power pump GB / T 3216-2005

Ø  Submersible pump Test methods GB/T 12785-2014

Ø  Measurement and evaluation of pump noise GB/T 29529-2013

Ø  Vibration measurement and evaluation of pumps GB/T 29531-2013

Ø  Drawings and related information

4)   Environmental conditions of equipment operation

Installation site:

indoor

Environmental climate:

+5℃ — +40℃

Indoor maximum environmental humidity:

Indoor monthly average ≤ 90%   Daily average ≤ 95%

Supply voltage:

380V ± 5%; 220V ± 5%

4.3.5 equipment technology requirement

1) System composition

Pressure drainage system mainly includes but is not limited to: drainage pump group, pipeline, valve, etc.

a.   Drainage pump group:

① The submersible motor shall be able to operate continuously, intermittently and resume operation after long-term shutdown under full submergence of up to 5 meters.

② The submersible pump for local drainage shall be specially used for the discharge of bottom mud and sand in the pump pit. Its minimum working water level shall be no more than 150 mm, and the installation height of the pump body shall be no more than 0.45 M.

③ The submersible motor for local drainage submersible pump shall be class F insulation and above, and be able to operate in the range of 0-40 ° Start up more than 15 times per hour in the working medium of C. stay ± It works normally at 5% rated voltage.

④ The protection grade of local drainage submersible pump is IP68, the insulation grade is f and above, three-phase, 380V, 50 Hz AC.

⑤ The winding of local drainage submersible pump is equipped with over temperature alarm switch, and the mechanical seal is equipped with water leakage alarm function.

⑥ The local drainage submersible pump should rotate smoothly and freely without jamming, stagnation and other phenomena, and has anti blocking and tearing mechanism, full head operation and stable power curve.

⑦ The submersible motor shall be able to operate continuously, intermittently and resume operation after long-term shutdown under the condition of full submergence and full surface exposure.

⑧ When the local drainage submersible pump is fixed and installed, the supplier shall provide the fixed measure parts.

2) Testing

Before leaving the factory, each pump shall be tested to ensure that the overall performance of the unit meets relevant standards. The test contents include: flow head curve, flow power curve and flow efficiency curve, and the test report shall be provided to the user. The first trouble free operation time of submersible pump shall not be less than 8000 hours.

3) Manufacturer's services:

① Technical specification of water pump, including characteristic curve, material description, spindle tolerance, dimension description of sealing and wearing parts, etc;

② Section drawing and assembly drawing of water pump;

③ Electrical wiring diagram, control circuit schematic diagram and description of pump set;

④ Standards and main provisions adopted for equipment design and manufacture, performance test report and acceptance;

⑤ Type test report of water pump;

⑥ Complete set of operation and maintenance manual;

⑦ Water pump factory certificate.

⑧ Installation dimension drawing of submersible pump

4) The manufacturer's technical representative shall go to the work site to guide the installation and inspection, and cooperate with the contractor to submit the certificate of completion of installation. And assist in commissioning and operation, training before start-up and on-site training.

5) The manufacturer shall guarantee to send personnel to the site for service within 24 hours after receiving the notice.

6) The warranty period of the water pump shall not be less than three years. The supplier shall provide the maintenance requirements of the equipment and specify the service life. During the warranty period, the manufacturer shall provide free maintenance service. If the same part still fails after twice maintenance, the manufacturer shall replace the water pump for free.

7) Each part of the pump shall be quoted separately by the manufacturer at the time of bidding. Within 8 years, the manufacturer shall promise to sell the corresponding quantity of spare parts at the bidding price. When the spare parts stop production, the manufacturer is obliged to inform Party A.

b. Gate valve

① The material of gate valve meets the requirements of domestic water supply.

② The valve body shall be able to withstand 1.5 times the rated pressure without deformation.

③ The rubber material of valve disc must have good wear resistance, resilience, cavitation resistance, aging resistance and acid and alkali resistance.

④ The valve body adopts wear-resistant epoxy resin baking paint, so that the epoxy resin and the body are firmly combined and not easy to peel off.

⑤ The inside and outside of the gate valve should be sprayed with epoxy resin, and the coating thickness is between 0.7 and 1.4mm. The coating shall be non-toxic product, and the non-toxic test report of the authority shall be provided.

⑥ The valve body shall be tested for strength at 1.5 times the high pressure. The seal shall be tested for two-way sealing at 1.1 times the high pressure.

⑦ The gate valve shall meet the requirements of general purpose valve flange and butt welding steel gate valve (gb12234) and flange metal valve structural length (gb12221).

c. Metal bellows

When the pipeline passes through expansion joint and settlement joint, metal bellows shall be set; The metal corrugated pipe is made of stainless steel, the nominal diameter is consistent with the diameter of the connecting pipe, and the nominal pressure level is not less than the maximum working pressure of the system; Metal bellows shall meet the requirements of general technical conditions for metal bellows expansion joints (GB / T 12777).

d. Rubber joint

The nominal diameter of the flexible rubber joint is consistent with the diameter of the connecting pipe, and the nominal pressure level is not less than the maximum working pressure of the system. The axial elongation of DN 100-dn200 is 12 mm, and that of dn250-dn600 is 14 mm; The axial compression capacity of DN 100-dn200 is 20 mm, and that of dn250-dn600 is 22 mm; The transverse displacement of DN 100-dn200 is 14 mm, and that of dn250-dn600 is 20 mm; The angular displacement of DN 100-dn200 is 17-10 degrees, and that of dn250-dn600 is 9-5 degrees. The flexible rubber joint shall meet the requirements of "flexible rubber joint" (Hg / t2289).

e. Pipe material

The pipes and fittings selected for the pipeline shall be provided with the product test report and product delivery quality guarantee issued by the national recognized product testing organization.

The pressure drainage pipeline adopts internal and external hot-dip galvanized steel pipe with flange connection, and the pressure resistance grade is PN16.

4.3.6 System equipment vs. monitoring system Of Interface requirements

The central control room can display the working state and fault signal of each pump and the alarm signal of the highest warning water level.


 High pressure stainless steel pipe (Fig. 1)

Fire water mist stainless steel seamless steel pipe


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