[Asia Pump Network News] Boiler feed pump in the use of what should pay attention to what, in order to avoid unnecessary losses caused by the use of the process. Xiaobian now to introduce some of the boiler feed pump in the use of the process should pay attention to the matter. Note the use of the boiler feed pump 1, DG-type pump in our plant using the medium temperature of 102 ℃ -104 ℃, before starting the pump temperature should be noted that the temperature should be maintained at or near the medium temperature, and only when the temperature rose to the medium temperature or When similar, before starting to pump into operation. 2, completely open the outlet valve, pressure gauge, drain the pump air, a flexible disk drive coupling. 3, in accordance with the original rules, open the inlet valve, circulating valve, the pump starts to open the outlet valve. This method of start-up has a major drawback. First, the balance disc and balance ring of the pump are designed to the rated outlet pressure of the pump (lift of 550 m). When the open cycle valve, the pump outlet pressure of 3-4MPa, due to the axial force, the rotor to the inlet section of the export section of the series, increasing the balance disc wear. In fact, if the outlet pressure of the pump exceeds the rated value, it can also push the balance disc and the balance ring. The liquid flows into the pump inlet through the balance pipe. The balance disc and the balance ring establish a new balance. Therefore, you can not open the recirculation valve when starting the pump. 4, the pump starts juxtaposed, check the vibration, abnormal noise, pressure, seal, current value, bearing temperature, non-pump at high flow and low lift parameters of the operation. 5, stop the pump, close the inlet pressure gauge, outlet pressure gauge, slowly shut down the outlet valve to stop the pump, off the inlet valve. Further reading: China Construction Water Expo Guangzhou Industrial Expo leader ring Pump manufacturers ranking Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http://beng.liuti.cn/ (Services Hotline:)
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