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Efficient leak-free shield pump

A leak-free, shielded pump technology, applied in the direction of pumps, pump components, non-variable pumps, etc., can solve the problems of insufficient shielding effect, achieve the effects of simple structure, improved efficiency, and improved sealing performance

Pending Publication Date: 2018-08-28
SHENYANG ANTI CORROSION ALLOY PUMP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The main purpose of the present invention is to provide a high-efficiency leak-free canned pump to solve the problem of insufficient shielding effect of canned pumps, magnetic pumps and centrifugal mixed flow pumps in the prior art

Method used

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  • Efficient leak-free shield pump
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Embodiment Construction

[0044] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0045] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0046] For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encomp...

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PUM

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Abstract

The invention provides an efficient leak-free shield pump which comprises a transmission shaft, a delivery pump, a driving mechanism and a sealing part, wherein the delivery pump is arranged at the first end of the transmission shaft and comprises a working part connected to the first end of the transmission shaft; the driving mechanism is arranged at the second end of the transmission shaft and is in driving connection to the transmission shaft; and the sealing part is arranged on the outer side of the transmission shaft in a sleeving manner, one end of the sealing part is in air-tight connection to the delivery pump, a sealing cavity is formed in the outer side of the transmission shaft of the sealing part, and a gas block cavity is formed in the sealing cavity. By applying the technicalscheme: the efficient leak-free shield pump, the sealing part is arranged on the outer side of the transmission shaft, and the sealing cavity is formed between the delivery pump and the outside and the gas block cavity is formed, so that the sealing property of the efficient leak-free shield pump is improved. Compared with existing shield pumps, the efficient leak-free shield pump is simpler, a sliding bearing is not adopted, and the efficiency of the seal pump is also improved.

Description

technical field [0001] The invention relates to the field of pump equipment, in particular to a high-efficiency leak-free canned pump. Background technique [0002] In the prior art, pumps with sealing effects are divided into static seal pumps and dynamic seal pumps, wherein canned pumps and magnetic pumps belong to static seal pumps, and centrifugal pumps, mixed flow pumps and volumetric pumps belong to dynamic seal pumps. [0003] The existing dynamic seal pump has the following problems: [0004] 1. It cannot be completely leak-free, and it is not suitable for conveying flammable and explosive media, toxic and harmful media, strong corrosive media and precious media. [0005] 2. The service life of the mechanical seal is limited, and it needs to be cooled and flushed. If the seal is damaged, it will cause the pump to leak. When the inlet is under negative pressure conditions, the pump chamber and the outside air will collide, which will destroy the negative pressure ope...

Claims

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Application Information

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IPC IPC(8): F04D29/10F04D29/58
CPCF04D29/108F04D29/588
Inventor 韩杰
Owner SHENYANG ANTI CORROSION ALLOY PUMP