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

Vacuum pipeline leak detection device and method based on laser trace gas absorption spectrum

A technology of vacuum pipeline and absorption spectrum, which is applied in gas/liquid distribution and storage, pipeline system, color/spectral characteristic measurement, etc., to achieve the effect of improving detection efficiency, high detection sensitivity, and reducing detection cost

Active Publication Date: 2021-11-30
XIJING UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The radioactive isotope gas method and helium mass spectrometry leak detection method are also only suitable for leak detection in laboratories and small vacuum equipment, not suitable for pipeline leak detection in vacuum pipeline transportation

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
  • Vacuum pipeline leak detection device and method based on laser trace gas absorption spectrum
  • Vacuum pipeline leak detection device and method based on laser trace gas absorption spectrum
  • Vacuum pipeline leak detection device and method based on laser trace gas absorption spectrum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] The specific content of the present invention will be further explained in detail below in conjunction with the examples.

[0061] Such as Figure 1 to Figure 10 As shown, this embodiment provides a vacuum pipeline leak detection device based on laser trace gas absorption spectroscopy, including a plurality of detection units 6 arranged on the inner wall of the vacuum pipeline 1, and the detection units 6 include correspondingly arranged lasers and photodetectors 41; Detect the inside of the vacuum pipeline 1 in the corresponding area; the distance between the laser generator 31 and the photodetector 41 determines the length of the laser path, the shorter the path, the higher the position accuracy of the gas leak detection, which is convenient for subsequent leaks Or search for leaks, but the number of detection units 6 will be increased correspondingly, which will increase the equipment cost. During specific implementation, through cost optimization analysis, plan and...

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 discloses a vacuum pipeline leak detection device based on the laser trace gas absorption spectrum. The vacuum pipeline leak detection device comprises a plurality of detection units arranged on the inner wall of a vacuum pipeline, each detection unit comprises a laser and a photoelectric detector which are correspondingly arranged, each detection unit is provided with a unique coding label corresponding to the position of the detection unit in the vacuum pipeline, each laser comprises a laser tuner and a laser generator, each laser generator comprises a laser transmitter, the lasers and the photoelectric detectors are connected to a control center through signal circuits arranged along the inner wall of the vacuum pipeline, and the control center is provided with an oscilloscope and a gas leakage alarm. The invention further discloses a vacuum pipeline leak detection method based on the laser trace gas absorption spectrum. According to the device and the method, real-time online monitoring is realized, the gas leakage position is accurately judged, the detection sensitivity is high, the response time is short, the detection cost is lowered, normal running of a vehicle is not affected, and the vacuum environment in the pipeline is not damaged.

Description

technical field [0001] The invention belongs to the technical field of vacuum pipeline transportation and vacuum leak detection, and in particular relates to a vacuum pipeline leak detection device and method based on laser trace gas absorption spectrum. Background technique [0002] For high-speed rail and maglev trains, when the speed exceeds 300km / h, the air resistance becomes the main running resistance, and when the speed exceeds 350km / h, the air resistance reaches more than 85% of the total running resistance of the train. To further increase speed, aerodynamic drag must be reduced. The existing trains have effectively reduced the aerodynamic drag by optimizing the vehicle profile (such as the streamlined front and rear). However, the application of this method to reduce the aerodynamic drag is close to its potential limit. Want to allow train to reach the high speed more than 600km / h, a kind of feasible and effective method is, build pipeline on ground or underground...

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): F17D5/02G01N21/39
CPCF17D5/005F17D5/02G01N21/39Y02T10/40
Inventor 张耀平
Owner XIJING UNIV
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