FIELD: heat power industry, applicable to enhance the efficiency of generation of electric power for auxiliaries of gas-transfer stations of main gas pipe-lines.
SUBSTANCE: additionally installed in the line of gas extraction from the outlet main pipe-line of the gas-compressor station to the waste recovery heat exchanger is a finish-pressing compressor positioned on the same shaft with the turbo-expander, and the pipe-line of intermediate gas extraction from the turbo-expander communicates with the outlet of the gas-transfer station.
EFFECT: enhanced efficiency of the plant due to the enhanced degree of pressure drop of the circulating flow of the turbo-expander to the optimum value.
1 dwg
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