Supercharge Your Innovation With Domain-Expert AI Agents!

Device for measuring elongation of valve cover bolt of main steam valve of steam turbine

A technology for measuring devices and main steam valves, applied to measuring devices, instruments, etc., to achieve the effect of eliminating interference and convenient measurement

Pending Publication Date: 2022-03-15
CLP CHINA NUCLEAR POWER ENG TECH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a device for measuring the elongation of the main steam valve bonnet bolts of a steam turbine in order to solve the defects existing in the existing measuring tools

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
  • Device for measuring elongation of valve cover bolt of main steam valve of steam turbine
  • Device for measuring elongation of valve cover bolt of main steam valve of steam turbine
  • Device for measuring elongation of valve cover bolt of main steam valve of steam turbine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] refer to Figure 1-Figure 3 , a steam turbine main steam valve bonnet bolt elongation measurement device, used to measure the depth of the central hole of the main steam valve bonnet bolt before and after stretching, calculate the elongation of the central hole, and then calculate the steam turbine main steam valve bonnet bolt The elongation of the measuring device includes a measuring head 1 and a depth gauge 2, the depth gauge 2 is connected with the measuring head 1, and the measuring head 1 is used to extend into the central hole of the main steam valve bonnet bolt, and the Depth gauge 2 is used to measure the depth of the center hole of the main steam valve bonnet bolt.

[0035] In this embodiment, the head end of the measuring head 1 is a spherical surface, which is adapted to the bottom of the center hole of the main steam valve bonnet bolt. The head end of measuring head 1 is set as a spherical surface, which is beneficial to adapt to the processing shape of th...

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 a steam turbine main steam valve cover bolt elongation measuring device which is used for measuring the depth of a center hole of a main steam valve cover bolt before and after stretching, calculating the elongation of the center hole and further calculating the elongation of the steam turbine main steam valve cover bolt, the measuring device comprises a measuring head and a depth gauge, and the depth gauge is connected with the measuring head. The measuring head is used for extending into a central hole of a main steam valve cover bolt, and the depth gauge is used for measuring the depth of the central hole of the main steam valve cover bolt. Compared with the prior art, the device provided by the invention adopts a structure of combining the depth gauge and the measuring head, ensures that the measuring position does not change, and is convenient to measure. And the elongation of the bolt is calculated according to the difference between the two measurement data. The device is convenient to measure, interference is eliminated, measurement can be carried out at any time according to needs, and therefore the bolt elongation can be measured and verified.

Description

technical field [0001] The invention relates to a tool for measuring the elongation of bolts, in particular to a device for measuring the elongation of bolts on the bonnet of a main steam valve of a steam turbine. Background technique [0002] A nuclear steam turbine is one of the most critical pieces of equipment in a nuclear or nuclear power plant. It usually refers to saturated steam turbines used in pressurized water reactor nuclear power plants, boiling water reactor nuclear power plants, heavy water reactor nuclear power plants and graphite water-cooled reactor nuclear power plants. The new steam is saturated steam with a small amount of moisture or slightly superheated steam. For high-temperature gas-cooled reactor nuclear power plants and fast breeder reactor nuclear power plants, the new steam parameters are roughly the same as the superheated steam parameters of conventional high-pressure thermal power plants, so conventional steam turbines for thermal power genera...

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): G01B21/02
CPCG01B21/02
Inventor 高光辉李永杰田勇王巍胡依向李凯
Owner CLP CHINA NUCLEAR POWER ENG TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com