A method for gas leak detection based on carbon-14 isotope
A gas leakage and isotope technology, applied in the field of isotope tracing, can solve the problems of lack of effective detection methods and limited detection accuracy in gas leakage detection technology
Active Publication Date: 2020-10-16
BEIJING CNTEN SMART TECH CO LTD
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[0003] In view of the above problems, the embodiment of the present invention provides a method for gas leakage detection based on carbon-14 isotope, which solves the technical problems that the existing gas leakage detection technology lacks effective detection means and detection accuracy is limited
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[0029] In order to make the purpose, technical solution and advantages of the present invention clearer and clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] like figure 1 As shown, an embodiment of the present invention is based on the method of carbon-14 isotope gas leakage detection as follows figure 1 shown. exist figure 1 This example includes:
[0031] Step 100: Adding a trace amount of carbon-14 methane (i.e. 14 CH 4 ).
[0032] The concentration of trace carbon-14methane is less than 10 -4 . That is, the volume ratio of trace carbon-14 methane to bas...
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The invention provides a method for gas leak detection based on carbon-14 isotope, thereby solving technical problems of being lack of the effective detection way and being limited by the detection precision of the existing gas leak detection technology. The method comprises: adding a trace amount of carbon-14 methane into the continuously conveyed base gas; and carrying out surface atmosphere collection along a routing area of a conveying pipeline and determining a pipeline leakage position based on the transition change of the carbon-14 abundance in the surface atmosphere. With the atmospheric abundance characteristics of carbon-14, the carbon-14 detector is able to collect the carbon-14 concentration change accurately in the e local atmospheric background by using the carbon-14 abundance in the atmosphere as a background reference and the temporary concentration in the region formed by the accidental leakage of artificially added carbon-14 methane as a measuring value.
Description
technical field [0001] The invention relates to the technical field of isotope tracer, in particular to a method for gas leakage detection based on carbon-14 isotope. Background technique [0002] In the prior art, isotope tracing uses radioactive isotopes and stable isotopes as tracers to make labeled compounds containing isotopes instead of corresponding non-labeled compounds. Nuclides determine the physical state of a compound, such as its location, quantity, and transformation. In practical applications, more mature industrial applications include radioisotope tracer microsphere surveying and mapping injection well water absorption profile method in petroleum industry, research on the killing effect of isotope pesticides and herbicides on pests and diseases in agriculture, etc. There are also cases of applying isotope tracer technology in atmospheric environment research, but there is a huge difference between the large-scale continuous fluid leakage detection in the ga...
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IPC IPC(8): G01M3/22
CPCG01M3/222
Inventor 陈明王星王力伟
Owner BEIJING CNTEN SMART TECH CO LTD