Fire Pump Fault Diagnosis Analysis

Fire pumps are very important to our fire safety, and more preparations are needed in product selection. According to the process flow of the fire pump application engineering, the requirements for water supply and drainage are considered in five aspects: the liquid delivery volume, the head of the device, the nature of the liquid, the piping layout, and the operating and operating conditions. There will be many problems in the actual use of the fire pump, and the following will analyze the fault diagnosis of the fire pump.

1. No liquid is available, the supply liquid is insufficient or the pressure is insufficient. a. The pump is not filled with water or is not properly vented. Elimination: Check that the pump casing and inlet line are completely filled with liquid.

b, speed is too low to eliminate measures: Check the motor wiring is correct, the voltage is normal or turbine steam pressure is normal.

c. The system head is too high. Eliminate measures: Check the system head (especially friction loss).

2. When the fire pump runs for a while, it will be shut down a. The suction stroke is too high. Eliminating the measures: Check the existing net head b, impeller or pipeline plugging. Elimination measures: Check for obstacles.

c. There is a leak in the air or in the inlet line. 3. The power consumption of the fire pump is too high a. The direction of rotation is not correct. Check the direction of rotation.

b. Impeller damage elimination measures: Check the impeller and replace it as required.

c、Removal of the rotating parts to eliminate measures: Check whether the clearance of internal wear parts is normal.

Pumps for fire protection systems are divided into the following categories:

Fire-fighting spray pumps, fire hydrant pumps, fire-fighting regulator pumps, and fire-fighting booster pumps are determined according to the actual conditions of use.

The type of pump used for the fire protection system is similar, except that the head and flow rate are different.

The fire pumps normally used in the work are mainly divided into vertical fire pumps and horizontal fire pumps. The liquid flow is one of the important parameters of the fire pump. This is also an important basis for user selection because the liquid flow is directly related to the entire device. The production capacity. Fire pumps play an important role in protecting people's safety and property. Accelerating research on these products is necessary and important.