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Method for increasing hydrogen analysis detection rate of hydrogen and carbon monoxide production apparatus

A carbon monoxide and hydrogen production technology, applied in measurement devices, analytical materials, instruments, etc., can solve the problems of not meeting customer safety requirements, not shortening the time of interlocking action, etc., to achieve the effect of improving response

Inactive Publication Date: 2015-07-29
SHANGHAI HUALIN IND GASES
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Problems solved by technology

[0007] In the existing technology, the test time for interlocking and closing the outlet valve of the CO product when the H2 content in the CO product exceeds 10,000 ppm is 100 seconds. This test result does not meet the safety requirements of the customer. No shortening of interlock action time

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  • Method for increasing hydrogen analysis detection rate of hydrogen and carbon monoxide production apparatus

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Embodiment

[0019] A method for improving the hydrogen analysis and detection rate of hydrogen and carbon monoxide production equipment. This method is used to detect the content of water, methane, hydrogen and carbon monoxide in CO products. Three hydrogen analyzers are installed in the output section of the detection device, which are 3- 1711AT050.1, 3-1711AT050.2, 3-1711AT050.3, the above-mentioned hydrogen analyzer is connected to the sampling pipeline, and the subsequent pipeline is equipped with a quick shut-off valve. There is a fast loop, the interlock value of the hydrogen analyzer is 10000Vppm, and the alarm value is 1000Vppm. Change the original sampling tube with a diameter of 12mm to a sampling tube with a diameter of 6mm, because the sample gas injection volume of the online analyzer is a fixed amount, and the factor that affects the response time of the analyzer is only the distance between the process pipeline and the analyzer. The amount of sample gas in the sample line. ...

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Abstract

The present invention relates to a method for increasing the hydrogen analysis detection rate of a hydrogen and carbon monoxide production apparatus, wherein the method is used for detecting the water content, the methane content, the hydrogen content and the carbon monoxide content in a CO product. According to the method, the output section of the detection apparatus is provided with a hydrogen analyzer, the hydrogen analyzer is connected with a sampling pipeline, the subsequent pipeline is provided with a rapid shut-off valve, the sampling pipeline is a sampling pipe with a diameter of 6 mm, testing is performed through the hydrogen analyzer after sampling is performed by using the sampling pipe, and the rapid shut-off valve on the subsequent pipeline is closed within 40 s when the detected hydrogen content achieves the alarm value. Compared with the method in the prior art, the method of the present invention has the following characteristics that: the response of the on-line analyzer can be increased by 4 times, the result action time is 26 s, the apparatus testing is smoothly passed through, and the on schedule gas supply is performed after the CO product customer approves.

Description

technical field [0001] The invention relates to a method for quickly measuring hydrogen, in particular to a method for improving the hydrogen analysis and detection rate of a hydrogen production and carbon monoxide device. Background technique [0002] The HYCO device supplies CO products to downstream customers through pipelines. The parameters and indicators of CO products required by the contract are as follows: [0003] CO product [0004] [0005] Vppm: 10 -6 (by volume); Vppb=10 -9 (by volume) [0006] The device should monitor the content of H20, CH4, H2 and CO? in the CO product. Among them, the H2 analyzer should have a redundant design, two out of three interlocking, with a fast loop, the interlocking value should be set to 10000Vppm, and the alarm value should be set to 1000Vppm. CH4 analyzer should have redundancy, with fast loop, range to 100Vppm, alarm value 11Vppm. The system should completely prevent CO products with excessive H2 content from enterin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 沈伟王乘东谭子龙蔡建培宋孝林
Owner SHANGHAI HUALIN IND GASES
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