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Sampling device for gas concentration measurement

A technology for gas concentration measurement and sampling device, which is applied to measurement devices, sampling devices, instruments, etc., and can solve problems such as inability to obtain accurate gas concentration detection results, damage to gas concentration detection sensors, and failures.

Inactive Publication Date: 2021-03-19
HEFEI HAICHUAN PETROCHEM EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the gas concentration detection is mainly carried out by setting the gas concentration detection sensor. Due to the high temperature and high pressure environment, the gas concentration detection sensor is easy to be damaged, and when the comparison error of the gas concentration detection sensor's multiple detection results is small, it is difficult to judge the gas concentration itself. If there is a change or the gas concentration detection sensor is faulty, it is impossible to obtain accurate gas concentration detection results

Method used

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  • Sampling device for gas concentration measurement
  • Sampling device for gas concentration measurement

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The present invention provides a sampling device for gas concentration measurement. The embodiment of the present invention takes the measurement of the concentration of hydrogen as an example for illustration, and is not limited to the measurement of the gas concentration of hydrogen, such as Figure 1-2 As shown, it i...

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Abstract

The invention discloses a sampling device for gas concentration measurement. The device comprises a pressure container, a nitrogen cylinder, a hydrogen cylinder, a hydrogen measuring system, a chromatograph and a deionized water tank, one side of the pressure container is communicated with the nitrogen cylinder, and one side of the pressure container is also communicated with the hydrogen cylinder; and four sampling probes are arranged in the pressure container, each sampling probe comprises a sampling tube, a joint, a sampling head and an anti-spray cover, the anti-spray cover is connected tothe surface of the sampling tube in a sleeving manner, and the bottom end of the sampling tube is fixedly connected with the top end of the joint. Concentration parameters of hydrogen in sampled gasare detected through the hydrogen measuring system, meanwhile, the hydrogen concentration in the sampled gas is detected through the chromatograph, and the precision of the sampling device is obtainedaccording to comparison results of four pairs of hydrogen concentrations in the hydrogen measuring system and the chromatograph.

Description

technical field [0001] The invention belongs to the technical field of gas concentration measurement, in particular to a sampling device for gas concentration measurement. Background technique [0002] With the development of electronic technology, the requirements for the packaging process of electronic devices are becoming more and more stringent. When there is a "hydrogen effect" in the packaging process, it will change the performance of the device, cause the device to work abnormally, and cause the device to fail. shorten the service life of the device. In order to solve the problem of the hydrogen effect of the device, it is necessary to quickly evaluate the ability of the device to resist "hydrogen poisoning". [0003] At present, the gas concentration detection is mainly carried out by setting the gas concentration detection sensor. Due to the high temperature and high pressure environment, the gas concentration detection sensor is easy to be damaged, and when the c...

Claims

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Application Information

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IPC IPC(8): G01N1/24G01N30/02G01N30/16
CPCG01N1/24G01N30/02G01N30/16
Inventor 钱建平
Owner HEFEI HAICHUAN PETROCHEM EQUIP
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