Starting method of the fire pump

Thread Content

Ways of starting a fire pump: There are generally two ways to start a fire pump. The first method involves a bus-based control system, where the activation signal generated by the fire hydrant’s control button is sent to the fire control room console through an interface module located next to the fire hydrant; from there, digital contacts that enable the fire hydrant to start are activated. The second starting method is to directly output the digital contact signal from the fire hydrant activation button to the fire pump start-up box. 　　Both of these startup methods can be used in practical design. The first method requires fewer wiring connections, but it necessitates address coding of the fire hydrant control modules within a bus system in order to monitor a large number of fire hydrants. The latter starting method is simple and reliable, but it still requires the fire hydrant activation signal to be sent back to the fire control room. In the actual design, the designer can choose the appropriate method based on the scale of the project. For projects of large scale with complex architectural designs, the former starting method can be used, while for smaller-scale projects, the latter method is suitable. 　　The automatic start-up of the spray pump is achieved by the glass balls in the nozzles of the piping network in various protection zones bursting due to high temperatures, which causes water flow in the piping network and thereby activates the pressure switch of the alarm valve, thus enabling the automatic start-up of the spray pump. By means of the water flow indicator interconnection module or the pressure switch wires of the alarm valve, signals indicating their operation can be transmitted to the control room; thus, the fire control room can accurately monitor such signals, and it should also be able to directly control the start and stop of the sprinkler pumps.