An industrial valve body stress measuring device and method thereof
A technology for stress measurement and industrial use, which is applied in the field of industrial valve body stress measurement devices, which can solve the problems of inaccurate measurement and inability to measure complex structures, etc., and achieve the effects of accurate measurement methods, promotion of intelligence, and good repeatability
Active Publication Date: 2021-04-27
ZHEJIANG UNIV
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Through the stress-strain relationship formula of the present invention, accurate and reliable stress at each position of the valve body can be obtained, thereby realizing long-term, real-time, online monitoring of the stress-strain state of the valve body, which not only solves the inaccurate and impossible measurement of the current resistance strain measurement method It can solve the problem of complex structure, and make up for the shortcomings in the field of valve body stress measurement in my country. It is of great significance for the long-term reliable operation of industrial valves and industrial safety production.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] The present invention will be further elaborated and illustrated below in conjunction with the accompanying drawings and specific embodiments. The technical features of the various implementations in the present invention can be combined accordingly on the premise that there is no conflict with each other.
[0044] An industrial valve body stress measurement device, which includes a computer 1, an optical fiber grating adjuster 3, a calibration system and a measurement system, wherein the computer 1 and the optical fiber grating adjuster 3 are communicated through a connecting line 2, and the optical fiber grating adjuster 3 choose an external calibration system and measurement system. The computer 1 is used to process the electrical signal output from the fiber grating adjuster 3 and display the calculation result at the same time. The fiber grating adjuster 3 converts the wavelength signal in the optical fiber 4 into an electrical signal, and transmits it to the comp...
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
Login to View More Abstract
The invention discloses an industrial valve body stress measuring device and a method thereof. The device includes a computer, an optical fiber grating mediator, a calibration system and a measurement system. The calibration system includes a fixed pulley, a tray, a weight, and a calibration optical fiber Bragg grating sensor; The measurement system includes a valve body and an optical fiber Bragg grating sensor, and the measurement sensor module is fixed on the outer wall of the valve body to convert the strain of the valve body into a wavelength signal. The present invention can accurately measure the strain at different positions of the valve body. Through the device and measuring method of the present invention, accurate and reliable stress at each position of the valve body can be obtained, thereby monitoring the stress and strain state of the valve body in a long-term, real-time and online manner, and solving the problem of The current resistance strain measurement method is inaccurate and unable to measure complex structures, which makes up for the shortcomings in the field of valve body stress measurement in my country, and is of great significance to the long-term reliable operation of industrial valves and industrial safety production.
Description
technical field [0001] The invention belongs to the field of industrial valve design, and in particular relates to an industrial valve body stress measuring device and a method thereof. Background technique [0002] As an important part of major high-end technical equipment, industrial valves play a key role in petrochemical, electric power, machinery, metallurgy, light industry, chemical and other industrial fields. Especially for key valves used in major engineering fields, such as high-temperature and high-pressure valves such as thermal power supercritical and ultra-supercritical parameters, low-temperature valves such as valves for LNG receiving stations, and wear-resistant and corrosion-resistant valves such as valves for coal chemical industry. Once the valve has accidents such as valve body cracking, it will cause heavy property losses and casualties. Carrying out online safety monitoring is to evaluate the safety and reliability of the structure by measuring the st...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/003G01L25/00G01L1/24
CPCG01L1/246G01L25/00G01M13/003
Inventor 金志江李文庆钱锦远
Owner ZHEJIANG UNIV