Vertical multi-stage fire pump the correct steps and maintenance

XBD vertical multi-stage fire pump multi-stage centrifugal pump features high lift and single-stage centrifugal pump compact structure, light weight, mechanical seals and other advantages into one, and now to introduce the next vertical Correct fire pump operation steps and maintenance. Vertical multi-stage fire pump First, start and run the two-stage pump Turn the motor by hand, the impeller should be no card-grinding phenomenon, rotating flexible; open the inlet valve, open the exhaust valve so that the liquid filled the pump chamber, and then close the valve; Such as the delivery of hot liquid, before starting should be preheated, heating rate of 50 ° C / h, the pump is preheated by the liquid circulation to achieve continuous, so that the two-stage pump heat evenly; Move a few laps to make the lubricating water into the mechanical seal face; jog the motor to determine the steering is correct; fully open the inlet valve, close the discharge pipe valve; power, when the pump reaches normal speed, and then gradually find open discharge pipe Valve, and adjust to the desired conditions; observe the instrument readings, check the motor, bearing temperature rise greater than or equal to 70C, if abnormal circumstances should be promptly addressed. Second, the two-stage pump stop gradually close the outlet pipe valve, cut off the power supply; close the inlet valve; if the ambient temperature is below 0 ° C pump liquid should be depleted to avoid freezing the pump; , Packaging and custody. Third, the two-stage pump operation in the maintenance and repair of water inlet pipe must be highly sealed, can not leak, leak; prohibit the pump in the cavitation state of long-term operation; prohibit the operation of high-flow operating conditions, the motor over-current long-term operation; Regularly check the amount of motor current in the pump operation, try to make the pump run in the design conditions; pump in operation should be someone care, so as to avoid accidents; mechanical seal is strictly prohibited in the dry grinding conditions; should be activated before starting the pump (Motor) a few times, to avoid sudden damage caused by the mechanical seal rupture; long-term operation of the pump, due to mechanical wear and noise so that the unit noise and vibration increases, the parking should be checked, if necessary, replace the vulnerable parts and bearings, unit maintenance The period is generally one year. Further Reading: pump valve pipe fittings Exhibition Water Expo Xiamen exhibition of marine equipment Internet + Forum Yiwu Fair 2016 exhibition mold top ten brands of the Internet information industry (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline:)

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