Treatment method of hydrogen sulfide gas in underground confined space

A closed space and treatment method technology, applied in the direction of chemical instruments and methods, separation methods, cleaning methods and utensils, can solve the problems of inconvenient operation and olfactory pollution in the surrounding area, so as to solve the inconvenient operation and reduce secondary pollution , the effect of reducing accidents

Active Publication Date: 2022-07-29
CHINA PETROLEUM & CHEM CORP +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a treatment method for hydrogen sulfide gas in an underground confined space, so as to solve the problems of inconvenient operation and olfactory pollution in the surrounding area existing in the existing method

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  • Treatment method of hydrogen sulfide gas in underground confined space
  • Treatment method of hydrogen sulfide gas in underground confined space
  • Treatment method of hydrogen sulfide gas in underground confined space

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Embodiment Construction

[0013] see figure 1 and figure 2 , the hydrogen sulfide gas processing device in the underground closed space of the present invention (referred to as the device of the present invention), comprising a hydrogen sulfide gas detector 16, a hydrogen sulfide gas detector sampling pipe 18, a gas collection cover 1, a suction gas delivery pipe 2, The adsorption box 5, the processing gas delivery pipe 7, the processing container 8, the processing gas output pipe 17, the vacuum pump 12, and the circuit system. The top of the underground closed space 13 is provided with a cover plate 131 , and the upper surface of the cover plate 131 is flush with the ground 15 . The underground closed space 13 communicates with the atmosphere through gaps, openings, and the like.

[0014] The inlet of the sampling pipe 18 of the hydrogen sulfide gas detector is located at the lower part of the underground closed space 13 , and the inlet is the detection position of the hydrogen sulfide gas detector...

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Abstract

The invention discloses a method for treating hydrogen sulfide gas in an underground confined space, and aims to solve the problems that the operation is inconvenient, olfactory pollution is caused to a peripheral area and the like in the conventional method. According to the method, when the hydrogen sulfide gas detector (16) detects that the concentration of hydrogen sulfide gas reaches the alarm concentration, the first pair of hydrogen sulfide gas detector alarm auxiliary contacts and the second pair of hydrogen sulfide gas detector alarm auxiliary contacts are closed. And the electromagnetic valve (3) is opened, and the vacuum air pump (12) is started. Gas in the underground closed space (13) enters the adsorption box (5) for physical adsorption through the gas collecting cover (1) and the suction gas conveying pipe (2), and then enters the treatment container (8) through the treatment gas conveying pipe (7) to treat residual hydrogen sulfide gas. The method is mainly used for a device area of a petrochemical refinery plant.

Description

technical field [0001] The invention relates to a method for treating hydrogen sulfide gas in an underground closed space in the petrochemical industry. Background technique [0002] In the petrochemical refinery plant area, there are underground closed spaces such as pipe trenches and underground valve wells. When a leak occurs in process piping or equipment on the ground, the leaking gas is sometimes hydrogen sulfide gas. hydrogen sulfide (H 2 S) When hydrogen sulfide leakage occurs in devices with high medium content (such as coal gasification, sulfur recovery, atmospheric and vacuum, acid water stripping, desulfurization and deodorization, etc.), because the boiling point of hydrogen sulfide is very low, it will exist in gas phase, which is very easy diffusion. The density of hydrogen sulfide gas is higher than that of air, and it is also easy to accumulate in underground confined spaces to form gas clouds, and the concentration will continue to rise to the dangerous ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/30B01D53/02B01D53/78B01D53/52B08B15/00G08B21/16G01N33/00
CPCB01D53/30B01D53/02B01D53/78B01D53/52B08B15/00G08B21/16G01N33/0044Y02A50/20
Inventor 皮宇史继森李中方武华团
Owner CHINA PETROLEUM & CHEM CORP
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