When a Fire Pump Equipment freezes, it’s easy to be caught off guard. It can cause some work to be interrupted and affect overall efficiency. At this time the user to do is to find out the cause of the jam, and the correct treatment of the pump jam phenomenon:
I. Reasons:
1. The spring of Fire Pump Equipment is damaged, resulting in uneven force on the rotating plate.
2, improper collocation, so that local stress.
3, the rotor, the gap between the end face and the end cover is too small, friction heating so that the elongation of the rotary sheet, or overheated friction and the hardness of the rotary sheet is too tight, and the burrs grind each other, so that the end face produces deep scratches, jam.
4, due to the loss or damage of the fire pump heating air inlet filter, resulting in dirt, dust, metal chips, glass chips and other fall into the pump chamber.
Second, the solution
Replace the spring, repair, replace and fill the heating air inlet filter screen in time, increase the gap between the pump rotor, rotary plate end face and end cover, reasonable design and collocation, regular maintenance and maintenance.
Generally, Fire Pump Equipment jams are caused by damaged parts. Replace aging parts in a timely manner to ensure proper operation of the Pump. Such a bad phenomenon should be avoided.
A construction site need to employ a variety of types of fire pump at the same time, the purpose is, if one of the pump cannot be used temporarily, for a while not immediately repair, or excessive current of main pump suddenly have to cut off the power and use of the function of main/standby, realize the main pump and standby pump switch between, improve the efficiency. The following is a detailed introduction:
1, current signal control method: one of the basis for judging whether the fire pump works is through the motor current signal feedback of the pump. When the motor is short-circuited or the current is too large, the power supply will automatically switch to another pump, and the main pump will stop working and the standby pump will start working.
2, pressure signal control method: set the electric node pressure gauge, judged by the signal of the pressure gauge. When the control box receives the action command, immediately start any fire pump, if the pressure indicated by the pressure gauge of the electric node does not reach the pressure value, the control box automatically switch to another fire pump, start the work.
The primary and standby switch function of the fire pump plays an important role in the protection of the pump, and can be applied to various types of pump, the benefit of the function is the use of high efficiency of the pump, and effectively reduce the probability of failure.
Post time: Jun-08-2022