Electric reciprocating pump in the work of failure is unavoidable things, mainly because of the electric reciprocating pump is too old, or continued to use for too long. Xiaobian now give you some introduction on the electric reciprocating pump failure analysis. Electric reciprocating pump failure analysis (1) the pump can not be started after the liquid: ①packing seal lax or excessive wear on the cylinder liner, expansion ring, bakelite ring shrinkage or stuck; ② valve box suction, row valve damage, Put or serious leakage; ③ suction tube leakage; ④ mouth exposed liquid level; ⑤ suction tube blockage (filter dirty block or stop valve is not open); ⑥ pumping too high, or pipeline resistance is too large; Oil temperature is too low, the viscosity is too high; ⑧ inhalation of liquid temperature is too high; ⑨ bypass somewhere discharge (safety valve leakage or spring too loose); ⑩ exhaust line obstruction and safety valve open. (2) abnormal noise pump: ①knocking sound in the pump cylinder, the cylinder may fall into the foreign matter or the piston nut loose; ② friction within the cylinder may be too tight packing or piston ring fracture; ③ valve box In the percussion, the spring may be broken or lack of elasticity, so that the valve lift is too large; ④ transmission parts gap is too large; ⑤ percussion in the pump cylinder may also be "liquid attack", then inevitably accompanied by suction vacuum Too large and pressure gauge pointer obvious swing characteristics, see (⑤) ⑧ ~ ⑧ items. Extended reading: China Construction Water Expo Guangzhou World Expo Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat:) http://beng.liuti.cn/ (Service Hotline: 400-6030 -811)
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