FIELD: gas-distributing stations.
SUBSTANCE: device uses useful energy released during process of expansion at throttling of gas (agent) before it was supplied to user. Device has gas-main cock disposed at tap of main gas pipeline, pressure controller, turbo-expander, user main distribution cock, connecting coupling half and sync generator connected with coupling half. Turbo-expander is made according to principle of using of useful energy released during gas expansion to provide preset pressure and temperature drop. Working wheel of turbo-expander is disposed onto shaft mounted in cantilever. Wheel has specially profiled, involute, blades. Shaft is fixed at two bearings. Connecting coupling half is disposed at end of shaft with segment self-sealing labyrinth seal. Device is intended for partial coverage of self-need electric energy.
EFFECT: improved efficiency of operation.
4 cl, 6 dwg
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