Double impeller pump

A double-impeller and impeller technology, applied in the field of mud pumps, can solve the problems of short service life, low sealing quality, and increased costs of mud pumps, and achieve the effects of increased service life, easy maintenance, and reduced costs

Inactive Publication Date: 2006-05-10
张建业
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current sealing quality is low, resulting in a short service life of the mud pump, which brings a lot of inconvenience to manufacturers and users, and increases the cost

Method used

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Embodiment Construction

[0030] The preferred scheme created by the present invention is illustrated below with reference to the accompanying drawings.

[0031] Such as figure 1 and figure 2 :

[0032] The seal 2 is installed under the bearing 1, the pump head 3 is provided with an impeller sealing chamber 4, the auxiliary impeller 5 is placed in the impeller sealing chamber 4, the auxiliary impeller 5 is coaxial with the main impeller 6 but the surface faces opposite; the auxiliary impeller 5 There is a gap between the inner wall of the impeller sealing chamber 4; the auxiliary impeller 5 is fixed by wire.

[0033] The embodiments in this invention are all exemplary and non-limiting embodiments. Those skilled in the art can make various changes, modifications or substitutions under the spirit of the invention and within the scope of the claims. However, these changes, modifications or replacements should all fall within the protection scope of the present invention.

[0034] According to differ...

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Abstract

The invention discloses a two-impeller pump of opposite orientation in the mud pump technique domain, which consists of a main impeller and an assistant impeller, wherein the main impeller conveys the solid-liquid mixture and the assistant impeller balances the pressure of mud pump sealing part.

Description

technical field [0001] The technical field of the technical solution claimed by the invention is pumps, especially mud pumps for conveying solid-liquid two-phase flow. Background technique [0002] A mud pump generally includes seals, pump heads, impellers, bearings, and other common components. There are both advantages and disadvantages in the prior art. [0003] Due to the factors of the working environment, mud pumps have long had the problem of difficult sealing and the problems of low service life and rapid wear of the pump casing. Current mud pumps use traditional sealing methods, such as water seals or mechanical seals. The current sealing quality is low, resulting in a short service life of the mud pump, bringing a lot of inconvenience to manufacturers and users, and increasing the cost. Contents of the invention [0004] The technical problem to be solved by the invention is to provide a double impeller pump. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D7/04
Inventor 张建业
Owner 张建业
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