Gas leakage detecting device and detecting method thereof

A gas leak detection, gas technology, applied in the measurement device, by detecting the appearance of fluid at the leak point, testing the fluid tightness, etc., can solve the problems of inapplicable detection, low helium leakage, and reduced sensitivity, etc., to achieve Effect of improving gas collection ability, improving detection efficiency, and improving sensitivity

Active Publication Date: 2018-06-29
北京临近空间飞艇技术开发有限公司
View PDF11 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relevant foreign units have used mass spectrometry equipment to carry out related airship air leak detection tests, such as Google balloons and the American HiSentine high-altitude airship. Although they have certain effects, there are the following problems: the efficiency is very low when working at high altitudes; When materials are damaged (especially thin-film materials), the pressure and load-bearing capacity of the boat bag is limited. Under low pressure, the leakage of helium g

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
  • Gas leakage detecting device and detecting method thereof
  • Gas leakage detecting device and detecting method thereof
  • Gas leakage detecting device and detecting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Embodiment 1: This embodiment provides a gas leak detection device, which uses the tracer gas method to quantify and locate a single leak point of the airship, and is powered by an external power supply 11. The detection device includes a detection component and a crawling positioning component;

[0039] The detection component is used to detect airship skin defect gas leakage, including injection and gas collection unit 12, vacuum pump 6, vacuum chamber 7, circulation fan 8, mass spectrometry equipment 9, high-pressure gas source pipeline 14, gas collection pipe Road 15 and the control valve;

[0040] Wherein, the injection and gas collection unit 12 includes a gas collection hood and a high-pressure gas source; one end of the gas collection hood is provided with a gas collection hole for collecting gas, and the other end is connected to the inlet end of the vacuum chamber 7 through a switch valve IV, and the gas collected by the gas collection hole The gas enters the ...

Example Embodiment

[0048] Embodiment 2: This embodiment proposes a gas leakage detection device based on an adsorption crawling robot, and the detection components are the same as those in Embodiment 1. The automatic detection of airship skin defects is realized by using the adsorption robot. The adsorption robot has the functions of adsorption, walking and gas collection and identification, and meets the following requirements:

[0049] (1) Free movement function, which can move freely on the skin surface of the airship.

[0050] (2) Gas collection function. The robot suction cup has the function of negative pressure adsorption. At the same time, it is used as a gas collection device on the skin surface, combined with a non-contact injection and gas collection unit to realize rapid gas collection of portable mass spectrometry equipment.

[0051] (3) Curvature adaptability function. Due to the different curvature changes on the surface of the airship and the obstacles of prominent structural par...

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 provides a gas leakage detecting device and a detecting method thereof. The gas leakage detecting device and the detecting method thereof are capable of performing high-efficiency and high-sensitivity detection on gas leakage of an airtight vessel at high altitude and are applicable to rapid detection of airtightness and rapid positioning of a large flexible structural vessel. The device is characterized in that a creeping and positioning assembly is used for carrying a mass spectrometer; a single leaking point of an airship is quantified and positioned at high altitude by adopting a tracer gas method, so that the detection can be quickly and efficiently carried out; in addition, a vacuum pump is used for rapidly pumping gas, thus gas in a certain volume can be concentrated and stored in a vacuum chamber within the shortest time, and as a result, the gas collecting capacity is improved; the mass spectrometer is used for sampling and detecting concentrated and mixed gas inthe vacuum chamber by utilizing a circulating fan, and thus the equipment detection efficiency is improved. According to the device, the gas is collected by adopting an injection and gas collecting unit; compared with a general gas collecting device, an injection hole is added, so that the detection sensitivity is improved; a chuck body is used for adsorbing a detected target under negative pressure as well as absorbing gas.

Description

technical field [0001] The invention belongs to the technical field of airship surface detection, is based on a tracer gas leak detection method, and in particular relates to a gas leakage detection device and a detection method thereof. Background technique [0002] An airship is an aircraft that uses helium as the buoyant gas to provide buoyancy. The skin material of an airship, especially a stratospheric airship, is a laminated composite material composed of a weather-resistant layer, a barrier layer, a fabric layer and an adhesive layer, which are required to have high specific strength, high barrier, and anti-aging properties. Therefore, the amount of helium leakage is an important performance index of the skin material of the airship capsule. The leakage of helium mainly includes two ways: one is the leakage of helium diffusion and penetration, and the leakage of helium through the skin material is the material itself. The characteristics of the property are inevitabl...

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
IPC IPC(8): G01M3/20
CPCG01M3/205G01M3/227
Inventor 张小强曹瑞黄起强徐沛虎熊超刘永辉
Owner 北京临近空间飞艇技术开发有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap