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

Valve seat structure of ultralow temperature top assembling type ball valve

A top-mounted, ultra-low temperature technology, applied in the direction of valve devices, connecting components, cocks including cut-off devices, etc., can solve the problems of immature and difficult key technologies, and achieve the advantages of easy assembly, improved reliability, and anti-rotation problems Effect

Pending Publication Date: 2020-02-28
LANZHOU HIGH PRESSURE VALVE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The ultra-low temperature top-entry ball valve for LNG is still relatively difficult for designers, and some key technologies are not yet mature enough.

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
  • Valve seat structure of ultralow temperature top assembling type ball valve
  • Valve seat structure of ultralow temperature top assembling type ball valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0015] refer to figure 1 , a seat structure of an ultra-low temperature top-entry ball valve, comprising a valve body 1, a ball 4 is arranged in the middle of the valve body 1, an upstream seat assembly 2 and a downstream seat assembly 5 are arranged on both sides of the ball 4, and the upstream seat assembly 2 and the downstream valve seat assembly 5 are installed symmetrically, wherein the upstream valve seat is a one-way sealing structure, and the downstream valve seat is a two-way sealing structure. The upstream and downstream valve seat components mainly include a valve seat and a spring seat and a positioning nut installed on the valve seat. The medium in the ultra-low temperature top-entry ball valve has flow direction requirements. It is a DIB-2 seat structure and has a self-relieving function in the middle cavity.

...

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

A valve seat structure of an ultralow temperature top assembling type ball valve comprises a valve body and a ball body, a valve seat is installed between the valve body and the ball body, a spring seat and a positioning nut are installed on the valve seat. The valve seat structure comprises a Z-shaped positioning piece. An upper end cross beam of the Z-shaped positioning piece is fixed to the valve body through a bolt, a lower end cross beam of the Z-shaped positioning piece is connected with the positioning nut through a second screw, and thus the valve body and the positioning nut are connected into a whole through the Z-shaped positioning piece; and via holes in the bolt and the second screw on the Z-shaped positioning piece are both long-strip holes. According to the valve seat structure of the ultralow temperature top assembling type ball valve, the valve body and the positioning nut are connected through the Z-shaped positioning piece, the anti-loosing problem of threaded connection of the positioning nut and the valve seat is effectively solved, and the reliability of the valve in the using process is improved.

Description

technical field [0001] The invention relates to the technical field of valve manufacturing, in particular to an ultra-low temperature top-mounted ball valve seat structure. Background technique [0002] As a high-quality, efficient, green and clean low-carbon energy, natural gas has been continuously increasing in the proportion of global energy consumption. In recent years, the proportion of LNG in natural gas supply in my country has increased rapidly. With the development of the LNG industry, the localization of key LNG equipment has been fully launched nationwide. The valve with working temperature of -196℃~-101℃ is an ultra-low temperature valve, and the temperature of natural gas after liquefaction is -162℃. As one of the key equipment of LNG, the ultra-low temperature top-entry ball valve is mainly imported in my country. In recent years, some domestic production enterprises and scientific research institutes have devoted themselves to the research of ultra-low temp...

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 Applications(China)
IPC IPC(8): F16K5/06F16K5/08F16K5/20F16B39/10
CPCF16K5/0636F16K5/08F16K5/201F16B39/10
Inventor 王军刚董霞王鹏飞陈文鑫郝宏达张建宝胡进鑫邵学军
Owner LANZHOU HIGH PRESSURE VALVE
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