Guide bracket as well as guide structure of pump body of vertical type high-pressure centrifugal pump

A high-pressure centrifugal pump and guide bracket technology, which is applied to non-variable-capacity pumps, components of pumping devices for elastic fluids, pumps, etc. deformation, etc.

Pending Publication Date: 2018-04-20
HANGZHOU FORTUNE CRYOGENIC EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high pressure of the outlet pipe, flexible compensators such as hoses should not be used for the outlet pipe. If the outlet pipe is not set properly, it will cause a large force on the nozzle, especially the force in the horizontal direction of the pipe, which will cause the horizontal direction of the pump nozzle. Displacement, resulting in deformation of the pump casing, which will affect the normal operation of the pump in severe cases

Method used

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  • Guide bracket as well as guide structure of pump body of vertical type high-pressure centrifugal pump
  • Guide bracket as well as guide structure of pump body of vertical type high-pressure centrifugal pump
  • Guide bracket as well as guide structure of pump body of vertical type high-pressure centrifugal pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 and figure 2 The shown guide bracket includes a base plate 1 and a stainless steel sleeve 2 fixed on the base plate 1 . The base plate 1 is provided with a plurality of connection holes, on which screw components 3 are mounted, and the base plate 1 is connected to the base through the screw components 3 . The screw fastening part 3 may be a bolt.

[0019] A collar 4 is arranged inside the pipe of the stainless steel sleeve 2 . The collar 4 is a polytetrafluoroethylene collar 4, the thickness of the collar 4 is 20 mm, and the outer wall surface of the collar 4 is attached to the pipe side wall of the stainless steel casing 2. This technical solution provides a guide bracket, the collar 4 of the guide bracket is a polytetrafluoroethylene collar, and the small friction coefficient between the polytetrafluoroethylene collar and the stainless steel sleeve 2 can effectively reduce the friction between the guide bracket and the stainless steel sleeve 2. T...

Embodiment 2

[0021] Such as image 3 and Figure 4 The guide structure of a pump body of a vertical high-pressure centrifugal pump shown includes a vertical high-pressure centrifugal pump 5 . The vertical high-pressure centrifugal pump 5 includes a casing 51 and a pump body disposed inside the casing 51 . The outlet pipe 53 of the pump body is a bent pipe, and the corner end of the bent pipe is an arc surface, and a branch pipe 54 is vertically connected to the lower end of the arc surface.

[0022] The branch pipe is supported by a guide bracket, and the guide bracket includes a base plate 1 and a stainless steel sleeve 2 fixed on the base plate 1 . The base plate 1 is provided with a plurality of connection holes, on which screw components 3 are mounted, and the base plate 1 is connected to the base through the screw components 3 . A collar 4 is arranged inside the pipe of the stainless steel sleeve 2 . The collar 4 is a polytetrafluoroethylene collar 4, the thickness of the collar 4...

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PUM

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Abstract

The invention relates to the field of low-temperature pipelines, in particular to a guide bracket. The guide bracket comprises a base plate as well as a stainless steel casing pipe fixed on the base plate; the a lantern ring is arranged in a pipeline of the stainless steel casing pipe; the lantern ring is a polytetrafluoroethylene lantern ring; and the surface of the outer side wall of the lanternring is arranged by fitting the side wall of the pipeline of the stainless steel lantern pipe. The guide bracket can effectively limit the horizontal displacement of the pipe orifice of the pump andcan protect the pump body from being serious deformed when the pipe orifice bears a large horizontal action force so as to protect normal operation of the pump.

Description

technical field [0001] The invention relates to the field of cryogenic pipelines, in particular to a guide bracket and a guide structure for a pump body of a vertical high-pressure centrifugal pump. Background technique [0002] The outlet pipe of the vertical high-pressure centrifugal pump has the characteristics of high working pressure, low working temperature and strict requirements on the nozzle load. The temperature is as low as -196°C, and the cold shrinkage of the pipeline is relatively large under operating conditions. If it is not handled properly, the pump nozzle will be stressed due to the cold shrinkage of the pipeline. Due to the high pressure of the outlet pipe, flexible compensators such as hoses should not be used for the outlet pipe. If the outlet pipe is not set properly, it will cause a large force on the nozzle, especially the force in the horizontal direction of the pipe, which will cause the horizontal direction of the pump nozzle. The displacement wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/02
CPCF04D29/026F04D29/4293
Inventor 巨小虎孙东远李梦月郑焕良朱枭
Owner HANGZHOU FORTUNE CRYOGENIC EQUIP CO LTD
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