Civilian gas tetrahydrothiophene adding device

Abstract

The invention discloses a civilian gas tetrahydrothiophene adding device, and belongs to the technical field of civilian gas equipment. The civilian gas tetrahydrothiophene adding device comprises a sealed tetrahydrothiophene liquid container, the upper portion of the sealed tetrahydrothiophene liquid container is communicated with a low-pressure gas inlet pipe and a tetrahydrothiophene liquid inlet pipe, the lower end of the sealed tetrahydrothiophene liquid container is communicated with a tetrahydrothiophene liquid outlet pipe, the other end of the low-pressure gas inlet pipe is communicated with an outlet of a gas pressure regulator, valves are arranged on the low-pressure gas inlet pipe, the tetrahydrothiophene liquid inlet pipe and the tetrahydrothiophene liquid outlet pipe respectively, and a liquid level sight glass is arranged on the outer wall of the sealed tetrahydrothiophene liquid container. The tetrahydrothiophene liquid inlet pipe and the sealed tetrahydrothiophene liquid container are added to a gas low-pressure pipeline, the consumption of tetrahydrothiophene is observed, the concentration of the tetrahydrothiophene in a gas pipe network is controlled through the valves, and therefore the civilian gas tetrahydrothiophene adding device is safe in operation, convenient to maintain and simple in structure.

Description

technical field [0001] The invention relates to the technical field of civil gas equipment. Background technique [0002] CNG is the abbreviation of Compressed Natural Gas. Town gas is flammable, explosive, and toxic. and public safety threats. In order to prevent and reduce the occurrence of vicious accidents such as poisoning and explosions caused by gas leakage that cannot be detected in time, the "Technical Regulations for Odorization of Town Gas" CCJ / T148-2010 stipulates that civil town gas must be odorized. 3.2.3 of the "Code for Urban Gas Design" GB50028-2006 stipulates that urban gas should have a detectable odor, and gas odorization has a positive effect on the safe supply of gas and the safe use of downstream users. The tetrahydrothiophene odorizing tank can provide stable odorization under the condition of constant flow rate, while the single-point direct supply CNG station is mainly aimed at civilian users, whose gas consumption is not a constant flow rate. Th...

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Problems solved by technology

3.2.3 of the "Code for Urban Gas Design" GB50028-2006 stipulates that urban gas should have a detectable odor, and gas odorization has a positive effect on the safe supply of gas and the safe use of downstream users. The tetrahydrothiophene odorizing tank can provide stable odorization under the condition of constant flow rate, while the single-point direct supply CNG station is mainly aimed at civilian users, whose gas consumption is not a constant flow rate. The amount of odorization cannot be stabilized, the concentration of tetrahydrothiophene detected by the detector is also unstable, and the residual amount of tetrahydrothiophene in the tetrahydrothiophene odorizing tank cannot be detected

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