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Gas path gas leakage detection structure of chromatographic instrument for laboratory

A technology for detecting structures and chromatographs, which can solve the problems of unreliable and inconvenient detection of air leakage by detecting the appearance of fluid at the leakage point, testing the fluid tightness, and testing machine/structural components, etc., to achieve Reliable leak detection and easy operation

Pending Publication Date: 2021-10-22
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention overcomes the disadvantages of inconvenient and unreliable air leakage detection in the gas path of the chromatograph, and provides a gas leakage detection structure for the gas path of the chromatograph used in the laboratory, which greatly facilitates the gas path of the chromatograph in the laboratory Air leak detection operation, reliable air leak detection

Method used

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  • Gas path gas leakage detection structure of chromatographic instrument for laboratory
  • Gas path gas leakage detection structure of chromatographic instrument for laboratory
  • Gas path gas leakage detection structure of chromatographic instrument for laboratory

Examples

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Embodiment

[0019] Embodiment: A kind of chromatograph gas path leak detection structure used in the laboratory (see attached figure 1 To attach Figure 4 ), installed at the connection position of the pipeline on the gas path of the laboratory chromatograph, and the gas path is connected between the gas cylinder 27 and the chromatograph 28. It includes a sealing bag 1 and a positioning shell 2. The outer wall of the sealing bag is bonded to the inner wall of the positioning shell. Both ends of the sealing bag are provided with connecting sleeves 3. The two connecting sleeves are respectively set on the outer walls of two adjacent pipelines on the gas path, and the inner wall of the sealing bag and the pipeline The air storage chamber 4 is formed between the outer walls, and the two ends of the positioning shell are provided with fastening sleeves 5, and the two fastening sleeves are respectively set on the outer walls of the two connecting sleeves, the outer walls of the fastening sleeve...

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Abstract

The invention discloses a gas path gas leakage detection structure of a chromatographic instrument for a laboratory and aims to overcome the defects of inconvenience and unreliability in gas leakage detection of the gas path of a chromatographic instrument. The structure comprises a sealing bag and a positioning shell, the outer wall of the sealing bag is attached to the inner wall of the positioning shell, connecting sleeves are arranged at the two ends of the sealing bag and sleeve the outer walls of two adjacent pipelines on a gas path respectively, a gas storage cavity is formed between the inner wall of the sealing bag and the outer walls of the pipelines, fastening sleeves are arranged at the two ends of the positioning shell and sleeve the outer walls of the two connecting sleeves respectively, locking rings are connected to the outer walls of the fastening sleeves in a fastened mode, and storage ring grooves are formed in the positions, close to the outer ends, of the inner walls of the connecting sleeves and are filled with color powder. The sealing bag is provided with a detection cylinder communicated with the gas storage cavity, the detection cylinder extends out of the positioning shell, and the detection cylinder is connected with a gas leakage reminding assembly.

Description

technical field [0001] The invention relates to a chromatograph auxiliary device, more specifically, it relates to a gas leakage detection structure of a chromatograph used in a laboratory. Background technique [0002] Chromatography is a chromatographic analysis equipment commonly used in laboratories and is widely used in the detection and analysis of chemical products. When the chromatograph is working, it needs to be connected to the gas circuit. After the gas circuit is ventilated, it needs to be tested for gas leaks. At present, soapy water is mostly used for gas leak detection, but soapy water needs to be prepared in advance for gas leak detection every time, and in many small Space, it is not easy to see the change of soap bubbles when air leaks, resulting in inaccurate detection. Contents of the invention [0003] The invention overcomes the disadvantages of inconvenient and unreliable air leakage detection in the gas path of the chromatograph, and provides a ga...

Claims

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Application Information

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IPC IPC(8): G01M3/28G01M3/22
CPCG01M3/2807G01M3/22
Inventor 刘琴李子孟孙秀梅郝青王范盛杨承虎陈页
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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