Gas component online measuring device
A measuring device and technology of gas components, applied in the field of gas component online measuring devices based on thermal elements, can solve the problems of difficulty, large equipment footprint, expensive equipment, etc., and achieve low manufacturing cost and small volume , the effect of simple structure
Pending Publication Date: 2019-04-23
北京放射性核素实验室 +1
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Problems solved by technology
The equipment required by the former is expensive, and the equipment occupies a large area, making it difficult to achieve online measurement; the latter is relatively common based on laboratory measurement and analysis, but there are also the following problems: first, a complete set of equipment is required, and second, it needs to be solved The interface problem of the system, the third is that it is necessary to adopt specific gas component separation means to realize the qualitative and quantitative analysis of the relevant components
Method used
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[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0020] from figure 1 It can be seen that the gas composition online measuring device in this embodiment includes a measuring device and a signal acquisition and processing module; the measuring device includes a tube body 31 and a thermal element 34 arranged inside the tube body 31, and the thermal sensor 34 communicates with the sensor through a lead wire. The signal acquisition and processing module is connected; the pipe body 31 includes an air inlet 32 and an air outlet 33, and the gas enters the pipe body 31 through the air inlet 32, so that the resistance value of the thermal element 34 changes, and the signal acquisition and processing module collects and processes the resistance value information, the gas enters the archive bottle through the gas outlet 33.
[0021] The pipe body can be a stainless steel tee, the two transverse ports...
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Abstract
The invention belongs to the field of gas component measurement, and particularly relates to a gas component online measuring device. The gas component online measuring device comprises a measuring assembly and a signal collecting and processing module; the measuring assembly comprises a tube body and a thermo-sensitive element arranged inside the tube body, the tube body comprises a gas inlet anda gas outlet, and the thermo-sensitive element is connected with the signal collecting and processing module through a lead; and the signal collecting and processing module is used for collecting andprocessing resistance value information of the thermo-sensitive element. The gas component measuring cost is lowered, online measurement is achieved while the measuring process is simplified, component separation is not needed, component qualitative analysis is not needed either, and mixed gas components directly enter a detector to be subjected to quantitative analysis; and the principle that the apparent thermal conductivity coefficient of the mixed gas with the binary components is changed with changing of the volume ratio concentration of the binary components is utilized, and the thermalcapacities of the different components matched in a mixed mode are different, so that external standardization of a curve is conducted, the content of single gas in the mixed gas is obtained, and thedata processing process is simple.
Description
technical field [0001] The invention belongs to the field of gas component measurement, in particular to an on-line gas component measurement device based on a thermal sensor. Background technique [0002] Traditional gas composition measurement methods include mass spectrometry and chromatography. The equipment required by the former is expensive, and the equipment occupies a large area, making it difficult to achieve online measurement; the latter is relatively common based on laboratory measurement and analysis, but there are also the following problems: first, a complete set of equipment is required, and second, it needs to be solved The interface problem of the system, the third is that it is necessary to adopt specific gas component separation means to realize the qualitative and quantitative analysis of the relevant components. Contents of the invention [0003] In order to reduce the cost of gas composition measurement, simplify the measurement process and realize...
Claims
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IPC IPC(8): G01N27/18G01N27/04
CPCG01N27/045G01N27/18
Inventor 陈占营常印忠刘蜀疆樊元庆
Owner 北京放射性核素实验室