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Sealing structure and installation method of a horizontal split pump

A horizontally split and sealed structure technology, applied to parts, pumps, pump components, etc. of pumping devices used for elastic fluids, can solve the problems of poor reliability of glue-coated seals, high cost of flat gasket seals, lack of interstage seals, etc. Problems, achieve the effect of reducing processing and manufacturing costs, reducing the difficulty of mechanical processing, and reducing costs

Active Publication Date: 2020-11-03
西安航天泵业有限公司
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing horizontal split pump adopts head-to-head hard metal seal with high process requirements, high cost of flat gasket seal, poor reliability of glued seal, and lack of interstage seal, and proposes a horizontal split pump Pump sealing structure and its installation method

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  • Sealing structure and installation method of a horizontal split pump
  • Sealing structure and installation method of a horizontal split pump
  • Sealing structure and installation method of a horizontal split pump

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Embodiment Construction

[0044] Below in conjunction with accompanying drawing and specific embodiment content of the present invention is described in further detail:

[0045] A sealing structure of a horizontally split pump comprises a three-dimensional sealing groove and an integrated sealing element adapted to the three-dimensional sealing groove.

[0046] The three-dimensional seal groove is formed by the seal ring seal groove 3 located on the outer circumference of the N casing seal rings and the seal grooves on the upper and lower pump bodies; the seal ring seal groove 3 should be set to avoid the stop device on the seal ring; The sealing grooves on the upper and lower pump bodies include two pump body sealing grooves 1 and two pump shaft end sealing grooves 2; the two pump body sealing grooves 1 are respectively located on the center opening of the lower pump body on both sides of the pump shaft. Between the bolt holes of the pump body and the vortex channel, it is used to realize the sealing ...

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Abstract

The invention provides a sealing structure of a horizontal axially split pump and a mounting method of the sealing structure. The problems that the process requirement of head-to-head metal sealing adopted for an existing horizontal axially split pump is high, the cost of flat gasket sealing is high, the reliability of gumming sealing is poor, and interstage sealing is lacked are solved. The sealing structure comprises a stereoscopic sealing groove and an integrated sealing element matched with the stereoscopic sealing groove. The stereoscopic sealing groove is formed by sealing ring sealing grooves located in the peripheries of N shell body sealing rings separately and a sealing groove in an upper pump body and a lower pump body. The sealing groove in the upper pump body and the lower pump body comprises two pump body sealing grooves in the axially split surface of the lower pump body and two pump shaft end sealing grooves. The two ends of the two pump body sealing grooves are connected with the two pump shaft end sealing grooves separately, and each sealing ring sealing groove is connected with the two pump body sealing grooves. N is determined by the stage number of the horizontal axially split pump, the impeller form and the impeller arrangement position.

Description

technical field [0001] The invention belongs to the sealing technology of a split pump, and in particular relates to a sealing structure of a horizontal split pump and an installation method thereof. Background technique [0002] The horizontal split pump has the structural characteristics of quick replacement of rotor parts and wearing parts, which can shorten the maintenance time of the pump, and the split face sealing technology and sealing ability are one of the main aspects that limit the application of horizontal split pumps. [0003] At present, the main ways of split face sealing are hard-to-hard metal seal, flat gasket seal, glue-coated seal, etc. These three methods of sealing have certain effects on split face sealing, but lack of interstage seal. Moreover, hard-to-hard metal seals require extremely high technology and processing capabilities, and general technology is difficult to achieve; secondly, in addition to requiring processing technology, the cost of flat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/08F04D29/10
CPCF04D29/086F04D29/106
Inventor 王金法马文瑛张世存胡钟兵王亮亮程建强张鲁李永乐刘慧娟
Owner 西安航天泵业有限公司
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