Stop valve

A shut-off valve and valve body technology, which is applied in the field of water-cooled ultra-high temperature shut-off valves, can solve the problems of easy deformation of the valve core and weakened sealing effect, and achieve the effects of enhancing cooling, preventing dead water areas, and enhancing cooling and heat transfer effects

Active Publication Date: 2013-11-06
NAT UNIV OF DEFENSE TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cut-off valve to solve the technical problems that the spool of the cut-off valve is easily deformed when exposed to high temperature and the sealing effect is weakened.

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
  • Stop valve
  • Stop valve
  • Stop valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0026] see figure 1 , the cut-off valve of the present invention is mainly used in high-temperature fluid pipelines to realize the on-off of high-temperature fluids. It is arranged in the valve body 1, and the valve core 2 can move back and forth along the axial direction in the valve body 1. A sealing mechanism is provided between the valve core 2 and the valve body 1 , and when the high-temperature fluid flows through the valve body 1 , the high-temperature fluid can be cut off through the engagement of the valve core 2 and the valve body 1 .

[0027] see in conjunction figure 2 and image 3 , the valve body 1 is provided with a valve chamber 101 and a sealing cone 102, the valve body 1 is provided with a fluid inlet nozzle 103 and a fluid out...

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 provides a stop valve, which comprises a valve body (1) and a valve spool (2). The valve body (1) comprises a valve cavity (101) and a sealing conical surface (102), a fluid inlet connecting nozzle (103) and a fluid outlet connecting nozzle (104) are arranged on the valve body (1), a cooling liquid inlet connecting nozzle (105) and a cooling liquid outlet connecting nozzle (106) are further disposed on the valve body (1), a first cooling liquid pipeline (107) is disposed in the valve body (1), a second cooling liquid pipeline (202) is disposed in the valve spool (2), and the cooling liquid inlet connecting nozzle (105), the first cooling liquid pipeline (107), the second cooling liquid pipeline (202) and the cooling liquid outlet connecting nozzle (106) are successively communicated. A cooling liquid loop is disposed in the valve body and the valve spool and can simultaneously cool the valve body, the valve spool and sealing surfaces of the valve body and the valve spool, so that a cooling effect of the stop valve is greatly strengthened, and the stop valve is applicable to working at higher work temperature.

Description

technical field [0001] The invention relates to the field of valves, in particular to a water-cooled ultra-high temperature cut-off valve. Background technique [0002] Globe valves need to be installed in many high-temperature fluid piping systems. Since the globe valves are used in high-temperature environments, their various physical and mechanical properties will change, resulting in high-temperature globe valves being extremely difficult in terms of structural design and material selection. strict. When the operating temperature of the globe valve exceeds 450°C, the globe valve is prone to creep and fracture. At present, high-temperature globe valves are mainly made of high-temperature-resistant materials, but when the maximum working temperature exceeds 730°C, the globe valve is no longer suitable. On the other hand, the current high-temperature globe valve usually adopts separate design of the valve body and the globe valve control actuator, and the focus is on the ...

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
IPC IPC(8): F16K49/00F16K27/00
Inventor 王博刘卫东潘余
Owner NAT UNIV OF DEFENSE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap