When is a fire fighting pump required?

fire fighting pump refers to a special fire fighting pump or a common clean water pump that meets the national standard "fire fighting pump performance requirements and test methods" GB 6245. Most firefighting water provided by firefighting water sources needs to be pressurized by firefighting pumps to meet the requirements for water pressure and water volume during firefighting.

This article contains the following:

Where do we need fire fighting pumps

fire fighting pump start time

The debugging of fire fighting pumps should meet the following requirements

1.Where do we need fire fighting pumps

fire fighting pumps are pressurized equipment for places, communities, office buildings, and hotels where fire sprinklers and fire hydrants need to be installed in order to meet the requirements of 2113 full fire codes. Since the head of the tap water is 30 meters, considering the pipeline loss of 5261 and other factors, the actual head should be about 4102 and should be around 24 meters, and the public places such as office buildings and hotels require two heads to arrive at the same distance from 1653 to 25 Therefore, a fire fighting pump room must be installed in the outdoor or basement. The fire fighting pump room includes the fire fighting pump and the voltage stabilizing equipment, and the wet alarm valve. Basically, all projects have fire fighting pumps, and what can be seen around is outdoor fire hydrants or water pump adapters.

2.fire fighting pump start time

1. The fire fighting pump should ensure that the automatic start time from receiving the pump start signal to the normal operation of the pump should not be greater than 2min.

This article stipulates the starting time of fire fighting pumps. The national standard "Code for Fire Protection Design of Buildings" GBJ 16-87 stipulates 8.2.8 Note: Low-pressure fire-fighting water supply system, if it does not cause production accidents, production water can be used as fire water. However, there should be no more than two valves for converting production water to fire water, and the time for opening the valves should not exceed 5 minutes. This is considered to be the starting time of the fire fighting pump.

2. The fire fighting pump control cabinet shall be equipped with a mechanical emergency pump start function, and shall ensure that when the control circuit in the control cabinet fails, a person with management authority will start the fire fighting pump in emergency. When the machine is started in emergency, it should be ensured that the fire fighting pump works normally within 5.0min.

3.The debugging of fire fighting pumps should meet the following requirements:

① When the fire fighting pump is started directly or manually, the fire fighting pump should be put into normal operation within 55s, and there should be no bad noise and vibration;

② When the fire fighting pump is started by the standby power supply switching mode or the standby pump switch, the fire fighting pump should be put into normal operation within 1min or 2min;

The starting time of the fire fighting pump refers to the time from when the power is turned on until the fire fighting pump reaches the rated working condition, which should be between 20s and 55s. Through experimental research, when the pump motor power is not greater than 132kW, the pump start time is within 30s, but usually greater than 20s. When the pump motor power is greater than 132kW, the pump start time is within 55s, so the start time for starting the fire fighting pump is between 20s and 55s It works. The diesel pump is 10s longer than the electric pump.

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