% r> #> C) r )>B< c=>Mining pump< c=Cbr>B< c=>Sand drainage pump< c=Cbr>B< c=>Mining The explosion-proof submersible pump < c=Cbr>B< c=> is a comprehensive < c=Cbr>B< c=> type submersible pump designed by our factory's engineering and technical personnel based on the actual working conditions of underground drainage in domestic coal mines. Based on the technical characteristics of electric pumps and < c=Cbr>B< c=> type sand discharge submersible pumps, a new generation of high-reliability, long-life replacement products has been developed.
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% r> #> ) )>1. Structural features and working principles
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% r> #> C) r )>. < c=>The structure of the electric pump is a single-machine, single-suction centrifugal lower pump, which adopts a dry high-efficiency motor and a double-layer shell structure< c=Cbr> (< c=>See the simplified structural diagram< c=Cbr>)
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% r> #> C) r )>b.&< c=> Part of the structure of the water pump adopts a single-suction centrifugal impeller and a centrally symmetrical multi-diffusion chamber pump body. This structure can balance the radial force of the pump shaft and reduce hydraulic impact. In addition, the water pump part of the high-power electric pump is equipped with axial force balancing structures such as auxiliary blades, auxiliary orifice rings and pressure relief holes, which greatly extends the service life of the bearings. In addition, the electric pumps are designed to be shut down for flushing to avoid clogging the impeller.
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% r> #> C) r )>c.&< c=> The cooling method of the electric pump is: the heat generated by the motor passes through the iron core and the motor shell. The cooling air flows to the motor housing, and then flows through the water or air flow between the motor housing and the guide housing < c=Cbr> (< c=> during no-load operation< c=Cbr>)< c=> Forced cooling. This method can ensure that the electric pump will not burn the motor during long-term idling and short-term overload operation.
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% r> #> C) r )>.< c=> The electric pump adopts a sealing form that combines a skeleton oil seal, a mechanical seal and an air chamber. Practice has shown that this The seal has high reliability and service life.
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% r> #> C) r )>.< c=> The electric pump has a simple structure and is easy to maintain.
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% r> #> ) C) Cbr>Contact information
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