Dynamic sealing vertical self sucking pump with high suction lift

A self-priming pump and sealing type technology, applied in the field of high-suction vertical self-priming pump, can solve the problems of cavitation, long self-priming time, easy leakage of shaft seal, etc. effect of work

Active Publication Date: 2011-11-23
SHANGHAI KAIQUAN PUMP IND GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the problems existing in the ordinary vertical self-priming pump in the prior art are: the shaft seal is easy to leak and damage; Cavitation phenomenon, resulting in unstable work

Method used

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  • Dynamic sealing vertical self sucking pump with high suction lift
  • Dynamic sealing vertical self sucking pump with high suction lift

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0010] Depend on figure 1 It can be seen that the present invention includes: the motor 1 is connected and fixed on the pump bracket 20 by screws 22, the pump casing is composed of the pump water suction chamber 12 and the pump pressure water chamber 15, and is connected with the pump bracket 20; the left and right sides of the pump casing are provided with There is a self-priming pump inlet 5 and a pump outlet 19; an electromagnetic vacuum breaker valve 3 is provided at the 5 inlet of the self-priming pump, and an automatic exhaust valve 4 is provided on the upper part of the pressure water chamber 15 of the pump casing; the impeller 11 is connected to the pump through the connection key 10 The shaft 9 is connected, and the periphery of the impeller 11 is provided with a guide vane type gas-liquid mixer 13, and a partition 14 is provided betwee...

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PUM

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Abstract

The invention relates to a dynamic sealing vertical self sucking pump with high suction lift, wherein, a motor is connected and fixed to a pump bracket via bolts; a pump case is composed of a pump water-absorbing chamber and a pump water pressure chamber and is connected with the pump bracket; the left side and the right side of the pump case are provided with a self sucking pump inlet and a pumpoutlet, wherein the self sucking pump inlet is provided with an electromagnetic vacuum breaker valve; the upper part of the pump case water pressure chamber is provided with an automatic vent valve; an impeller is connected with a pump shaft via a connecting key, and the periphery of the impeller is provided with a guide vane type air and liquid mixer; a clapboard is arranged between the outer edge of the guide vane type air and liquid mixer and the pump outlet; and the pump shaft is connected with a motor shaft via a coupler. The dynamic sealing vertical self sucking pump also comprises a dynamic sealing device and a dynamic supercharging device, wherein the dynamic sealing device is arranged on the joint of the pump shaft and the pump bracket; the dynamic supercharging device is arranged between the pump water pressure chamber and the self sucking pump inlet. The self sucking pump of the invention solves the problem that the common vertical self sucking pump is easy to leak and be damaged, can normally self suck and can stably work under high suction lift.

Description

technical field [0001] The invention relates to a vertical self-priming pump with high suction stroke, in particular to the sealing structure in the self-priming pump and the structure between the pump pressure water chamber and the inlet of the self-priming pump. Background technique [0002] High suction vertical self-priming pumps are mainly used in petroleum, electric power, chemical industry, steel, medicine, coking, electroplating, environmental protection, fire protection, municipal, water purification, national defense and military industry, textile printing and dyeing, mining and mineral processing, civil construction and other industries. Self-priming pumps are suitable for pumping sewage and cleaning liquids with particles. There is no need for a bottom valve in the suction pipeline, and there is no need to fill the pump body with liquid when starting, and it can be started directly, so it is widely used. [0003] However, the problems existing in the ordinary ver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/10F04D29/00F04D9/02
Inventor 王者文施勇沈华乔玉兰
Owner SHANGHAI KAIQUAN PUMP IND GROUP
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