FIELD: oil and gas industry.
SUBSTANCE: invention refers to gas industry and can be implemented at gas line repairs. The mobile installation for gas exhaust from a disconnected section of the gas main, equipped with a bypass line, includes a compressor with suction and pressure pipelines. The compressor is multi-stepped with a hydraulic drive. An oil pump of the compressor is furnished with a gas engine of internal combustion. The pipe line of gas supply into the engine is connected to the bypass line or to the disconnected section of gas main; the suction pipeline is connected to the disconnected section of the gas main and to the first step of hydro-driven compressor; the pressure pipeline is connected with the bypass line and the last step of the hydro-driven compressor. On the pipelines connecting the steps of the hydro-driven compressor between them and on the pressure pipeline air heat exchangers are installed. Connecting pipelines are equipped with pipe bends uniting connecting pipelines after heat exchangers along gas flow with the bypass line and with the disconnected section of the main; also shutting off bodies are arranged on the pipelines and on the pipe bends.
EFFECT: facilitating energy saving, decreasing natural gas losses, installation operation in a wide range of suction pressure, and reduced time for transit at simultaneous increase of installation reliability during operation.
1 dwg
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