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

A calibration device for steam turbine differential expansion and valve position instrumentation

A technology of calibration device and steam turbine, which is applied to mechanical measurement devices, mechanical devices, measurement devices, etc., can solve problems such as complete calibration of differential expansion instruments, and achieve the improvement of calibration efficiency, calibration accuracy and cost saving. Effect

Active Publication Date: 2019-05-17
JIANGSU NUCLEAR POWER CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the particularity of the shape and measurement principle of the differential expansion instrument in nuclear power plants, there is currently no special calibration device for a complete set of calibration of the differential expansion instrument, and only the LVDT linear voltage differential sensor in the differential expansion instrument can be calibrated separately, so the invention A calibration device capable of calibrating any type of differential expansion instrument and valve position instrument

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 calibration device for steam turbine differential expansion and valve position instrumentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Below in conjunction with accompanying drawing and embodiment a kind of that the present invention provides is introduced:

[0017] A steam turbine differential expansion and valve position meter calibration device, including a calibration component 24, a control box 15, a portable computer 21, a USB data line 16, a control circuit 2, a universal adjustment bracket 18, a spare fixture C19 and a locking handle C20, wherein the verification component 24 is connected to the control circuit 2, and the control box 15 is connected to the portable computer 21 through a USB data line; the spare clamp C19 and the locking handle C20 are installed on the verification component 24.

[0018] The verification assembly 24 includes a driving stepper motor 1, a base 3, a guide rail 4, a lead screw 5, a moving fixture mounting plate 6, a locking handle A7, a fixture A8, a moving fixture 9, a fixture B10, a lock Tight handle B11, fixing device A12, fixing device B13, accessory mounting ho...

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 belongs to the field of nuclear power station instrument error verification and relates to a steam turbine differential expansion and valve position instrument verifying device. The steam turbine differential expansion and valve position instrument verifying device achieves convenient and fast verification operation of differential expansion and valve position instruments, ensures accurate and reliable steam turbine differential expansion and valve position instrument verification, improves maintenance efficiency of steam turbine displacement instruments, and guarantees stable operation of a unit. The steam turbine differential expansion and valve position instrument verifying device comprises a verifying assembly, a control box, a portable computer, a USB data line, a control line, a universal adjusting support, a standby clamp C, and a locking handle C. The verifying assembly is connected with the control box through a control line. The control box is connected with the portable computer through the USB data line. The standby clamp C and the locking handle C are installed on the verifying assembly.

Description

technical field [0001] The invention belongs to the field of instrument error calibration of nuclear power plants, and relates to a calibration device for steam turbine differential expansion and valve position instruments. Background technique [0002] Generally, each steam turbine in a nuclear power plant has 6 sets of differential expansion gauges, 4 sets of high-pressure valve position gauges, and 4 low-pressure inlet steam valve position gauges. According to the plan of the maintenance outline and the importance of the instrument, every overhaul of the displacement instrument of the steam turbine shall be checked and verified in the laboratory and on site. [0003] In view of the particularity of the shape and measurement principle of the differential expansion instrument in nuclear power plants, there is currently no special calibration device for a complete set of calibration of the differential expansion instrument, and only the LVDT linear voltage differential senso...

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): G01B5/02
Inventor 黄潜徐霞军涂彩清黄亚宁张海滨侯耀张成立杨林远凌农朱峰张桂虎张建佟海威范学英侯绍辉吴金堤
Owner JIANGSU NUCLEAR POWER 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