A turbo compressor to suction and compress gas includes a housing including a flow passageway through which gas flows, an impeller disposed inside the flow passageway, the impeller providing suction for the gas by being rotationally driven, a liquid discharge port provided in the flow passageway on
A turbo compressor to suction and compress gas includes a housing including a flow passageway through which gas flows, an impeller disposed inside the flow passageway, the impeller providing suction for the gas by being rotationally driven, a liquid discharge port provided in the flow passageway on the upstream side of the impeller, the liquid discharge port discharging, from the flow passageway, any liquid produced as the gas liquefies when the turbo compressor is stopped, a liquid discharge pipe connected to the liquid discharge port, an electromagnetic valve connected to the liquid discharge pipe, and a controller configured to open the electromagnetic valve before the impeller is rotationally driven. A refrigerator includes the turbo compressor, wherein the turbo compressor compresses refrigerant gas.
대표청구항▼
1. A turbo compressor to suction and compress gas comprising: a housing including a flow passageway through which gas flows, the gas liquefying when a certain ambient temperature is reached;an impeller disposed inside the flow passageway of the housing, the impeller being configured to provide sucti
1. A turbo compressor to suction and compress gas comprising: a housing including a flow passageway through which gas flows, the gas liquefying when a certain ambient temperature is reached;an impeller disposed inside the flow passageway of the housing, the impeller being configured to provide suction of the gas by being rotationally driven;a liquid discharge port provided in the flow passageway on the upstream side of the impeller, the liquid discharge port being configured to discharge, from the flow passageway, any liquid produced as the gas liquefies when the turbo compressor is stopped;a liquid discharge pipe connected to the liquid discharge port of the flow passageway, the liquid discharge pipe being configured to allow the liquid to be discharged therethrough,an electromagnetic valve connected to the liquid discharge pipe, anda controller configured to open and close the electromagnetic valve,wherein the controller is configured to open the electromagnetic valve before the impeller is rotationally driven. 2. The turbo compressor according to claim 1, further comprising: a rotation shaft to which the impeller is fixed, the rotation shaft extending in a horizontal direction,wherein the flow passageway of the housing is formed around the rotation shaft, andthe liquid discharge port is provided at a bottom part of the flow passageway. 3. The turbo compressor according to claim 1, further comprising: first and second compression stages each including an impeller;a rotation shaft connecting the impeller of the first compression stage and the impeller of the second compression stage to each other, the rotation shaft extending in a horizontal direction;a second flow passageway connecting the first and second compression stages, the second flow passageway being formed around the rotation shaft, and the second flow passageway being configured to allow the gas to flow therethrough; anda second liquid discharge port provided at a bottom part of the second flow passageway, the second liquid discharge port being configured to discharge, from the second flow passageway, any liquid produced as the gas liquefies when the turbo compressor is stopped. 4. A refrigerator comprising: a condenser configured to cool and liquefy a compressed refrigerant gas, so as to produce a refrigerant liquid;an evaporator configured to absorb vaporization heat by evaporating the refrigerant liquid produced at the condenser; anda turbo compressor configured to compress the refrigerant gas produced at the evaporator and to supply the refrigerant gas to the condenser,wherein the turbo compressor includes: a housing including a flow passageway through which the refrigerant gas flows, the refrigerant gas liquefying when a certain ambient temperature is reached,an impeller disposed inside the flow passageway of the housing, the impeller being configured to provide suction of the refrigerant gas by being rotationally driven, anda liquid discharge port provided in the flow passageway on the upstream side of the impeller, the liquid discharge port being configured to discharge, from the flow passageway, any liquid produced as the refrigerant gas liquefies when the turbo compressor is stopped,a liquid discharge pipe connected to the liquid discharge port of the flow passageway, the liquid discharge pipe being configured to allow the liquid to be discharged therethrough,an electromagnetic valve connected to the liquid discharge pipe, anda controller configured to open and close the electromagnetic valve,wherein the controller is configured to open the electromagnetic valve before the impeller is rotationally driven. 5. The refrigerator according to claim 4, further comprising a liquid discharge unit communicated with the liquid discharge port, the liquid discharge unit being configured to allow the discharged liquid to be supplied thereto,wherein an internal atmospheric pressure of the liquid discharge unit is set to be lower than that of the liquid discharge port. 6. The refrigerator according to claim 4, further comprising a liquid discharge unit communicated with the liquid discharge port, the liquid discharge unit being configured to allow the discharged liquid to be supplied thereto,wherein the liquid discharge unit is provided below the liquid discharge port. 7. The refrigerator according to claim 4, wherein the evaporator is communicated with the liquid discharge port, and the evaporator is configured to allow the discharged liquid to be supplied thereto, andan internal atmospheric pressure of the evaporator is set to be lower than that of the liquid discharge port. 8. The refrigerator according to claim 4, wherein the evaporator is communicated with the liquid discharge port, and the evaporator is configured to allow the discharged liquid to be supplied thereto, andthe evaporator is provided below the liquid discharge port.
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