Self-priming non-clogging sewage pump

Abstract

A self-priming non-clogging sewage pump comprises a pump block, a rotating shaft, an impeller, a pump cover, and a hanger. The pump block comprises an oil chamber, a volute, a gas-liquid separation chamber, an inflow pipe, a liquid storage chamber and a front cover plate. The pump cover is connected with the left side of the volute. The hanger is fixed to the left end of the pump block. One end of the rotating shaft is connected with the impeller; the other end of the rotating shaft penetrates the pump cover, the oil chamber and the hanger and is connected with a bearing at the left end of the hanger. The impeller is disposed inside the volute. The front cover plate is fixed to the inner wall of the volute through bolts. The right side of the lower end of the volute is provided with a reflow hole which is communicated with the liquid storage chamber through a one-way inflow valve. An outlet in the upper end of the volute is arranged in the gas-liquid separation chamber. The self-priming non-clogging sewage pump is simple in structure, low in production cost and convenient to popularize; clogging can be avoided effectively; maintenance costs are lowered; the service life of the pump is prolonged. The self-priming non-clogging sewage pump has high self-priming capacity, self-priming time is shortened and operating efficiency is improved.

Description

technical field [0001] The invention relates to a sewage pump, in particular to a self-priming non-clogging sewage pump. Background technique [0002] Sewage pumps are widely used in municipal, coal mines, power plants, urban water supply and drainage, environmental protection, sewage treatment, chemical, mining, petroleum, water conservancy, metallurgy and other industries to transport liquids containing suspended solid particles or fibrous suspended solids. It is one of the major energy consumers and key equipment in various industries. [0003] At present, the sewage pumps produced in China generally have low efficiency, high energy consumption, serious clogging, poor self-priming performance, and multi-stage lifting pump stations are often used for occasions that require a large elevation increase, resulting in large project investment. Common self-priming sewage The self-priming performance of the pump is relatively dependent on the gap between the tongues. When the ga...

AI Technical Summary

Problems solved by technology

[0003] At present, the sewage pumps produced in China generally have low efficiency, high energy consumption, serious clogging, poor self-priming performance, and multi-stage lifting pump stations are often used for occasions that require a large elevation increase, resulting in large project investment. Common self-priming sewage The self-priming performance of the pump is relatively dependent on the gap between the tongues. When the gap between the tongues is greater than 2mm, it cannot self-prime. If the gap between the tongues is too small, it is prone to blockage, which greatly restricts the further application of sewage pumps.

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