Acceptance specifications for fire pump room pipelines and related valves?

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

What is the specific content of the acceptance requirements of the fire pump room, the following Zhongda Consulting will answer for you.

1. The emergency lighting and safety exits of the fire pump room equipment should meet the design requirements.

2. The specifications, models and quantities of working pumps, standby pumps, suction pumps, outlet pipes and pressure relief valves and signal valves on the outlet pipes should meet the design requirements. When the gate valve is installed on the outlet pipe, it should be locked in the normally open position.

3. The fire pump should adopt self-irrigation water diversion or other reliable water diversion measures.

4. The discharge valve and drainage pipe for testing should be installed on the outlet pipe of the fire pump.

5. The setting of standby power supply and automatic switching device should meet the design requirements.

6. The pump room equipped with fire pneumatic water supply equipment should start the fire pump when the air pressure of the system drops to the lowest design pressure.

7. The number of fire pump adapters should meet the design requirements of the inlet pipe position, the fire pump adapter should be filled with water, and the pressure and quantity of the most unfavorable point of the system should meet the design requirements.

1. Fire pump room:

1. The fire resistance level of the independently built fire pump room shall not be lower than the second grade.

2. The fire pump room should not be set up on the fourth basement floor or below or the floor with a height difference of more than 10m between the ground and the outdoor entrance and exit floor in the basement.

3. When the fire pump room is set on the first floor, its evacuation door should be directly connected to the outdoors; When installed on the basement floor or floor, the evacuation door should go straight to the safety exit.

4. The service radius of the fire pump room and fire control room should not be greater than 150m for civil buildings; For industrial buildings, it should not be larger than 800m 1200m.

Second, fire hydrants:

1. When the building is within 150m of the protection radius of the municipal fire hydrant, and the water consumption for fire protection does not exceed 15L s, there is no outdoor fire hydrant.

2. Outdoor fire hydrants should be evenly arranged along the perimeter of high-rise buildings, and should not be concentrated on one side of the building.

3. The distance between the outdoor fire hydrant of the civil air defense project and the entrance of the civil air defense project should not be less than 5m.

5. Outdoor fire hydrants should be set up in a place that is convenient for fire trucks.

6. Outdoor fire hydrants should be above-ground, and when underground fire hydrants are used, there should be obvious signs. The underground type is used in cold areas, the above-ground type should be used in non-cold areas, and the anti-collision type can be used in the above-ground type if conditions permit.

7. Outdoor above-ground fire hydrants should have a diameter of 150mm or 100mm and two bolt openings with a diameter of 65mm. Outdoor underground fire hydrants should have a bolt mouth with a diameter of 100 and 65mm.

8. The protection radius of outdoor fire hydrants should not exceed 150m, and the spacing should not exceed 120m.

9. The outdoor fire hydrant should not be more than 2m away from the roadside, and it should not be less than 5m away from the outer wall of the house.

Inspection well management of the first article in order to strengthen the maintenance and management of urban road underground inspection wells, to ensure smooth traffic and personal safety, according to the "urban road management regulations" and "Liaoning Provincial Municipal Public Facilities Protection Regulations" and other relevant provisions, combined with the actual situation of the city, these provisions are formulated. Article 2 These provisions apply to the management and maintenance of underground inspection wells attached to urban roads within the urban planning area of the city. The underground inspection wells mentioned in these regulations refer to the inspection wells, valve wells, rain and sewage drainage wells, fire hydrants and other manhole covers, grates and ancillary facilities of electricity, gas, heating, water supply, drainage, fire protection, communications, traffic signals, lighting, cable television and other underground facilities buried in urban roads.

Third Municipal Urban and Rural Planning and Construction Commission is the administrative department of municipal facilities, responsible for the comprehensive coordination and management of urban road underground inspection wells, and organize the implementation of these provisions; Its subordinate municipal facilities management agency, Yun Demolition Tsai, is responsible for the daily management of underground inspection wells in the central urban area. The municipal facilities management department of Nanfen District and Benxi High-tech Zone is responsible for the daily management of underground inspection wells in their respective jurisdictions.

There are requirements for the design of the fire pump house in the building design code, including the number, location, and model of normally open valves. 2.Fire Design Search Specification:

There are requirements for normally open valves in fire pump rooms in the fire protection design code, including that normally open valves must be set up, and normally open valves should be connected with dry fire hydrant boxes. 3.Technical Standards for Fire Protection Facilities:

There are technical requirements for normally open valves in fire pump rooms in the technical standards for fire-fighting facilities, including the fire performance and size requirements of normally open valves. 4.Safety Specifications:

There are also certain requirements for normally open valves in fire pump rooms in safety specifications, including the installation position, handle height, and identification of normally open valves. In general, the design of the normally open valve of the fire pump room should meet the requirements of the relevant fire regulations and safety specifications of the state and Dikai leakage party to ensure the safety and reliability of fire protection facilities.

Centrifugal fire pump suction pipes, outlet pipes and valves, etc., shall comply with the following provisions:

1. There should be no less than two suction pipes for a group of fire pumps, and when one of them is damaged or overhauled, the rest of the suction pipes should still be able to pass through all the design flow of fire water supply;

2. The arrangement of the suction pipe of the fire pump should avoid the formation of air bags;

3. A group of fire pumps shall be connected with no less than two main water pipes to connect with the fire water supply ring pipe network, and one of the water pipes shall be overhauled.

, the rest of the water pipes should still be able to meet the design flow rate of fire water supply;

4. The inundation depth of the suction port of the fire pump shall meet the requirements of the safety of the operation of the fire pump at the lowest water level, and the submersion depth of the suction pipe bell mouth under the minimum effective water level of the fire pool shall be determined according to the water flow speed and hydraulic conditions of the suction pipe bell, but shall not be less than 600mm, and the inundation depth shall not be less than 200mm when the cyclone preventer is adopted;

4. The inundation depth of the suction port of the fire pump shall meet the requirements of the safety of the operation of the fire pump at the lowest water level, and the submersion depth of the suction pipe bell mouth under the minimum effective water level of the fire pool shall be determined according to the water flow speed and hydraulic conditions of the suction pipe bell, but shall not be less than 600mm, and the inundation depth shall not be less than 200mm when the cyclone preventer is adopted;

5. The suction pipe of the fire pump should be provided with an open rod gate valve or a butterfly valve with a self-locking device, but when the concealed rod valve is set, there should be an opening scale and a mark; When the pipe diameter exceeds DN300, it is advisable to set up an electric valve;

6. Check valves and open rod gate valves should be set on the outlet pipe of the fire pump; When butterfly valves are used, they should be equipped with self-locking devices; When the pipe diameter is greater than.

DN300, it is advisable to set up an electric valve;

7. When the diameter of the suction pipe of the fire pump is less than DN250, its flow rate should be as follows; When the diameter is greater than DN250, it should be;

8. When the diameter of the outlet pipe of the fire pump is less than DN250, its flow rate should be as follows; When the diameter is greater than DN250, it should be;

9. The layout of the suction well should meet the requirements of smooth water flow, uniform flow rate, and no vortex whirlpool, and should be convenient for installation and construction;

10. When the suction pipe and outlet pipe of the fire pump pass through the outer wall, the waterproof casing should be used; When crossing walls and floors, the requirements of Article 5 of this Code shall be met;

11. When the suction pipe of the fire pump crosses the fire pool, a flexible casing should be used; When using rigid waterproof casing, flexible joints should be set on the suction pipe of the water pump, and the pipe diameter should not be greater than DN150.

Centrifugal fire pump suction pipes, outlet pipes and valves, etc., shall comply with the following provisions:

1. There should be no less than two suction pipes for a group of fire pumps, and when one of them is damaged or overhauled, the rest of the suction pipes should still be able to pass through all the design flow of fire water supply;

2. The arrangement of the suction pipe of the fire pump should avoid the formation of air bags;

3. A group of fire pumps shall be connected with no less than two main water pipes to connect with the fire water supply ring pipe network, and one of the water pipes shall be overhauled.

, the rest of the water pipes should still be able to meet the design flow rate of fire water supply;

4. The inundation depth of the suction port of the fire pump should meet the requirements of the safety of the fire pump at the lowest water level, and the submersion depth of the suction pipe bell at the minimum effective water level of the fire pool should be determined according to the water flow speed and hydraulic conditions of the suction pipe bell, but it should not be less than 600mm, and the inundation depth should not be less than when the cyclone preventer is adopted.

200mm；

4. The inundation depth of the suction port of the fire pump should meet the requirements of the safety of the fire pump at the lowest water level, and the submersion depth of the suction pipe bell at the minimum effective water level of the fire pool should be determined according to the water flow speed and hydraulic conditions of the suction pipe bell, but it should not be less than 600mm, and the inundation depth should not be less than when the cyclone preventer is adopted.

200mm；

5. The suction pipe of the fire pump should be provided with an open rod gate valve or a butterfly valve with a self-locking device, but when the concealed rod valve is set, there should be an opening scale and a mark; When the pipe diameter exceeds.

DN300, it is advisable to set up an electric valve;

6. Check valves and open rod gate valves should be set on the outlet pipe of the fire pump; When butterfly valves are used, they should be equipped with self-locking devices; When the pipe diameter is greater than.

DN300, it is advisable to set up an electric valve;

7. The diameter of the suction pipe of the fire pump is less than.

DN250, the flow rate should be.

The diameter is greater than. dn250

, it is advisable to; 8. The diameter of the outlet pipe of the fire pump is less than.

DN250, the flow rate should be.

The diameter is greater than. dn250

, it is advisable to; 9. The layout of the suction well should meet the requirements of smooth water flow, uniform flow rate, and no vortex whirlpool, and should be convenient for installation and construction;

10. When the suction pipe and outlet pipe of the fire pump pass through the outer wall, the waterproof casing should be used; When crossing walls and floors, it should be in accordance with the first section of this code.

paragraph 5 of Article of this article;

11. When the suction pipe of the fire pump crosses the fire pool, a flexible casing should be used; When using rigid waterproof casing, flexible joints should be set on the suction pipe of the water pump, and the diameter of the pipe should not be larger.

dn150。

The acceptance of the fire pump shall meet the following requirements:

1. The operation of the fire pump should be stable, and there should be no vibration of bad noise;

2. The specifications, models and quantities of working pumps, standby pumps, suction pipes, outlet pipes and pressure relief valves, water hammer elimination facilities, check valves, signal valves, etc., shall meet the design requirements; The control valve on the suction pipe and outlet pipe should be locked in the normally open position and should be clearly marked;

3. The fire pump should adopt the self-irrigation water diversion method, and should ensure that all effective water storage is effectively utilized;

4. Open each end of the water test device, water test valve and test fire hydrant in the system respectively, and the functions of the water flow indicator, pressure switch, low-pressure pressure switch, high-level fire water tank flow switch and other signals should meet the design requirements;

5. Open the water test valve on the outlet pipe of the fire pump, and when the main power supply is used to start the fire pump, the fire pump should start normally; Turn off the main power supply, and the main and standby power supplies should be able to switch normally; Standby pumps start and switch between each other normally; The local and remote start-stop functions of the fire pump should be normal;

6. When the fire pump is stopped, the pressure after the water hammer eliminates the facility should not exceed the times of the rated pressure of the pump outlet;

7. The start control of the fire pump should be placed in the automatic start gear;

8. Use fixed and mobile flowmeters and pressure gauges to test the performance of fire pumps, and the performance of the pumps should meet the design requirements.