Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for reducing the pressure of the sealing cavity of a high-pressure circulating pump

A technology of high-pressure circulation and sealed cavity, which is applied to the components, pumps, pump components, etc. of pumping devices for elastic fluids, to achieve the effects of reduced investment, long service life and low pressure

Active Publication Date: 2015-09-23
CHINA PETROCHEMICAL CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention provides a method for reducing the pressure of the seal chamber of a high-pressure circulating pump, which solves the problem of high pressure in the seal chamber of the prior art pump inlet and outlet.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for reducing the pressure of the sealing cavity of a high-pressure circulating pump
  • A method for reducing the pressure of the sealing cavity of a high-pressure circulating pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Such as figure 1 As shown, the high-pressure fluid 1 with a pressure of 4.0-35.0MPa enters the pump body 2, and is discharged from the pump body 2 after pressurization, becoming a high-pressure flow 3, and the liquid discharged from the balance drum or throttling bush 4 arranged in front of the sealing chamber 18 leads to the pressure of 0.1 ~ 4.0MPa low-pressure container 8 through the liquid outlet 6.

[0039] figure 2 As shown, part of the reaction effluent 13 from the high-pressure hydrogenation reactor with a pressure of 7.0-20.0 MPa enters the pump body 2, and is discharged from the pump body 2 after being pressurized to become a high-pressure stream 16. The high-pressure stream 16 is combined with the new hydrogenation raw material 15 mixed into the high-pressure reactor 14 for hydrogenation reaction, the liquid 18 discharged from the balance drum or throttling bushing 4 arranged in front of the sealed cavity is led to a pressure of

[0040] A safety relief v...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for reducing the pressure of a pump sealing chamber, which is characterized in that it comprises the following steps: 1) high-pressure fluid enters the pump body from the inlet of the pump, and is discharged from the pump body after being pressurized by the pump; The liquid discharged from the balance drum or throttling bush is led to the low-pressure container outside the pump body. The invention overcomes the problem that the prior art pump inlet and outlet are both high-pressure sealing chambers with high pressure and difficulty in sealing.

Description

technical field [0001] The invention relates to the field of pumping liquid with a rotary pump, relates to a pump for lifting fluid through centrifugal force, and in particular to a method for reducing the pressure of a sealing cavity of a high-pressure circulating oil pump. technical background [0002] The centrifugal pump is designed according to the principle of centrifugal force. The high-speed rotating impeller blades drive the fluid to rotate, and the fluid is thrown out, so as to achieve the purpose of transportation. High-pressure pumps are mainly used as process pumps in petroleum, chemical and fertilizer industries. [0003] Ordinary high-pressure pump seals generally have a lower inlet pressure and a higher outlet pressure of the pump. In order to facilitate the sealing of the seal chamber, the two sides of the impeller of the pump are balanced through the balance hole or the auxiliary impeller to balance the axial force, and then through the Throat bushing is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/08F04D7/06
Inventor 杨成炯朱华兴
Owner CHINA PETROCHEMICAL CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com