Gas leakage detection structure and method for gas path of chromatographic instrument
A technology for detecting structures and chromatographs, applied in the testing of machines/structural components, instruments, measuring devices, etc., can solve the problems of unreliable and inconvenient detection of air leakage, and achieve reliable detection of air leakage, convenient operation, and tight connection good sex effect
Pending Publication Date: 2021-10-22
MARINE FISHERIES RES INST OF ZHEJIANG
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The invention overcomes the disadvantages of inconvenient and unreliable detection of air leakage in the gas path of the chromatograph, and provides a gas leakage detection structure and method of the gas path of the chromatograph, which greatly facilitates the gas leakage detection operation of the gas path of the chromatograph. Gas detection is reliable
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
[0023] Embodiment: A gas path leakage detection structure of a chromatograph (see attached figure 1 to attach Figure 5 ), installed at the connection position of the pipeline on the gas line, the gas line is connected between the gas cylinder 42 and the chromatograph 43, including the positioning inner shell 1, the positioning shell 2, and the sealant layer 3 arranged between the positioning inner shell and the positioning shell, The positioning inner shell and the positioning outer shell are compatible, and the two ends of the positioning inner shell are respectively set on the outer walls of two adjacent pipelines on the gas path, and the air storage chamber 4 is formed between the inner wall of the positioning inner shell and the outer wall of the pipeline, and the two ends of the positioning shell are respectively set on On the outer walls of the two ends of the positioning inner shell, the sealing sleeve 5 is installed between the two ends of the positioning inner shell ...
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 a gas leakage detection structure and method for a gas path of a chromatographic instrument and aims to overcome the defects that gas leakage detection of the gas path of a chromatographic instrument is inconvenient and unreliable. The structure comprises a positioning inner shell, a positioning outer shell and a sealing glue layer arranged between the positioning inner shell and the positioning outer shell, the two ends of the positioning inner shell sleeve the outer walls of two adjacent pipelines on a gas path respectively, the two ends of the positioning outer shell sleeve the outer walls of the two ends of the positioning inner shell respectively, sealing sleeves are installed between the two ends of the positioning inner shell and the pipelines, the outer walls of the sealing sleeves, the two ends of the positioning inner shell and the two ends of the positioning outer shell are obliquely arranged outwards and are close to the axes of the pipelines, locking sleeves are in threaded connection with the positions, close to the sealing sleeves, of the pipelines, and obliquely-arranged locking sections are arranged on the inner walls of the locking sleeves and tightly connected with the outer wall of the end of the positioning outer shell, a detection cylinder is arranged on the positioning inner shell and extends out of the positioning outer shell, and a gas leakage reminding assembly is connected to the detection cylinder.
Description
technical field [0001] The invention relates to an auxiliary device of a chromatograph, and more specifically, to a structure and method for detecting air leakage in a gas path of a chromatograph. Background technique [0002] Chromatography is a device for chromatographic analysis, which is sensitive and highly automated, 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 detection of air leakage in the gas path of the chromatog...
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 IPC IPC(8): G01M3/28
CPCG01M3/2807
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