When the Fire Pump Equipment after running for a period of time, the Pump body with the speed of the Pump and fever, if long time has been so hot, the inside of the wire will be burn out quickly, so in order to be able to let the Pump to reduce the risk of being a good will, through the way of cooling heat produced and accumulated inside the Pump, the cooling system of it have?
1, water cooling: due to the transmission and compression of gas and heat, these heat, from the rotor to the fire pump shell and emit.
2, air cooling: the air inhaled by a single or double stage pump, after compression, comprehensive absorption and a combination of phase difference silencer transmission, to achieve the purpose of cooling.
3. Rotor oil film cooling is connected with an oil pipeline at the entrance of the fire pump, and the heat of the rotor is taken away by uniform drops of cooling oil.
4, internal cooling of the rotor: cooling the rotor with circulating oil, at both ends of the pump shaft are respectively oil hole, oil diameter shaft head, through the inner wall of the rotor, discharged from the other end, take away part of the heat generated.
The proper cooling method takes heat away from the Fire Pump Equipment in a short period of time, reducing the risk of internal circuit burn and short circuit, making the Pump safer to use and improving its efficiency. During the cooling process, the heat generated will be taken away and the temperature of the pump body will be reduced.
Fire pump in the process of operation, with the help of internal pressure will be liquid ejection, like fire fighting tools used, it is a more common one, in the timely protection of the safety of items play a larger role. What are the causes of pressure pulsation?
1, in any pipeline fire pump suction end and discharge end, there will be pressure pulsation. The size and frequency of the pulsation depend on the pump structure, the pressure head generated by the fire pump, the response of the suction and discharge lines, and the operating point of the pump on its characteristic curve.
2. In the case of fire pump pressure pulsation, the random frequency is higher than the piece passing frequency. It is sometimes difficult to determine the cause of gauge frequency fluctuations. Sometimes this involves acoustic performance, system resonance, vortices generated by valves, and harsh upstream line conditions. Such random pressure pulsations should not be treated as spurious or irrelevant data in any analysis of representative operational problems.
The structure and operation point of fire pump will affect its pressure pulsation. Through the above introduction, the cause of pressure pulsation can be found and solutions can be found.
Post time: Jun-21-2022