Turbo compressor and refrigerator
AssigneeIHI Corporation
InventorNoriyasu Sugitani
Life of this patent
Estimating the term…
Abstract
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.
Claims8
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, and
- a 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.
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;
- and
- a 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, and
- 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 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, and
- a 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.
Dependencies are inferred from the claim text.