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

High exhaust check valve of critical and supercritical thermal power generating set valve

A technology for thermal power units and check valves, applied in valve details, control valves, valve devices, etc., can solve problems such as no guarantee of closing time, inability to automatically open, etc., achieving light weight, good force resistance performance, and small pipeline load. Effect

Active Publication Date: 2012-12-05
DALIAN DAGAO VALVE
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is no actuator outside this type of valve, it cannot be opened automatically, and the closing time is not guaranteed

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
  • High exhaust check valve of critical and supercritical thermal power generating set valve
  • High exhaust check valve of critical and supercritical thermal power generating set valve
  • High exhaust check valve of critical and supercritical thermal power generating set valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Combine Figure 1~Figure 8 , The structure of the high-discharge check valve of the present invention is further explained:

[0031] (1) The rocker arm 4, the disc 3, the split pin 7, the disc nut 6, the disc nut gasket 5, and the anti-rotation pin 8 are assembled into a component and placed in the valve body 1, and the valve seat 2 is welded to the valve body 1;

[0032] (2) Forced opening shaft 22, left sleeve 23, key 24 is installed in the left shaft pin hole of valve body 1 (see figure 2 ), connected to the rocker 4 component. Insert the forced closing shaft 25 and the right shaft sleeve 39 on the right side of the shaft pin hole of the valve body 1;

[0033] (3) Packing 29 is installed in the shaft pin holes on both sides of valve body 1, and right bracket stud 28 and left bracket stud 46 are screwed into both sides of valve body 1. Screw in the right packing pressure plate stud 36 on the right bracket 35, install the right packing pressure plate 31, the packing 29, the...

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 relates to the field of thermal power valves for critical and supercritical thermal power generating set systems, particularly to a high exhaust check valve of a critical and supercritical thermal power generating set valve, which is characterized in that the left shaft sleeve key of a forced-opening shaft is mounted in the left side shaft pin hole of a valve body and connected with a rocker arm assembly; a forced-opening shaft and a right shaft sleeve are inserted into the right side of the shaft pin hole of the valve body; a right filler press plate stud is screwed into a right bracket; a right filler press plate, a filler, a press sleeve right filler press plate stud, a guide sleeve, a bearing, a bearing gland, an oil cup and a spiral wound gasket are all embedded into the forced-opening shaft, and are matched tightly with the valve body; a filler, a filler press sleeve, a left bracket, a bearing, a bearing gland and a guide sleeve on the left side forced-opening shaft are assembled to be inserted into the forced-opening shaft together with a switch press plate; a forced-opening transmission handle and a forced-closing transmission handle are mounted on the two sides of the forced-opening shaft and then in the cylinder, and a cylinder rear cover and a force-opening cylinder rear cover O ring are mounted; and after the cylinder is assembled, a forced-opening cylinder and a forced-closing cylinder are mounted respectively. The high exhaust check valve can automatically open, and the forced-closing cylinder can automatically and quickly close the valve within 0.5 seconds in case of emergency.

Description

Technical field [0001] The invention relates to the field of thermal power valves for critical and supercritical thermal power generating sets, in particular to a one-gigawatt critical and supercritical thermal power set valve high-discharge check valve. Background technique [0002] Critical and supercritical coal-fired generating sets related valves High discharge check valve, that is, swing check valve plus actuator, the valve is installed on the pipeline between the high-pressure cylinder and the reheater to prevent unstable air flow and cause reheating The medium flows back into the high-pressure cylinder to protect key equipment. In the prior art, there is no actuator outside this type of valve, it cannot be opened automatically, and the closing time is not guaranteed. In case of emergency, the valve cannot be closed automatically and quickly in less than 0.5 seconds. The closing of the valve can prevent the reheater medium from flowing back into the high-pressure cylinde...

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): F16K15/03F16K27/00F16K31/122F16K41/02
Inventor 陈力
Owner DALIAN DAGAO 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