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US 12,753,959 B2Granted
Economizer and refrigeration system comprising same
AssigneesYork (Wuxi) Air Conditioning and Refrigeration Co., Ltd., Tyco Fire & Security GmbH
InventorsXiuping Su, Fang Xue, Lu Mei, Kun Lin
Life of this patent
Estimating the term…
Abstract
An economizer includes an outer shell that internally includes a heat exchange cavity and a gas-liquid separation cavity. A heat exchange tube bundle is provided in the heat exchange cavity. The economizer is configured to enable refrigerants from a condenser to be subjected to heat exchange in the heat exchange cavity first, and then to be subjected to gas-liquid separation in the gas-liquid separation cavity after passing through a first-stage throttling device, such that gas refrigerants flow out of a gas outlet of the gas-liquid separation cavity, and liquid refrigerants flow out of a liquid outlet of the gas-liquid separation cavity.
Claims14
An economizer, comprising:
- an outer shell that internally comprises a heat exchange cavity and a gas-liquid separation cavity and has a length direction;
- an inner shell disposed within the outer shell, wherein the inner shell internally comprises the heat exchange cavity, the gas-liquid separation cavity encircles the inner shell, and the gas-liquid separation cavity is formed between the inner shell and the outer shell;
- a heat exchange tube bundle provided in the heat exchange cavity and extending along the length direction, wherein the heat exchange tube bundle is configured to circulate a cooling medium;
- an inlet of the heat exchange cavity and an outlet of the heat exchange cavity, which are in fluid communication with the heat exchange cavity;
- and
- an inlet of the gas-liquid separation cavity, a gas outlet of the gas-liquid separation cavity, and a liquid outlet of the gas-liquid separation cavity, which are provided on the outer shell and are in fluid communication with the gas-liquid separation cavity, wherein the inlet of the gas-liquid separation cavity is in fluid communication with the outlet of the heat exchange cavity through a first-stage throttling device, and the inlet of the gas-liquid separation cavity and the gas outlet of the gas-liquid separation cavity are provided to be spaced by a certain distance in the length direction,
- wherein the economizer is configured to enable refrigerant from a condenser to be subjected to heat exchange in the heat exchange cavity first, and then to be subjected to gas-liquid separation in the gas-liquid separation cavity after passing through the first-stage throttling device, such that gas refrigerant flows out of the gas outlet of the gas-liquid separation cavity, and liquid refrigerant flows out of the liquid outlet of the gas-liquid separation cavity, wherein the refrigerant is different from the cooling medium.
4 more elements
A refrigeration system, comprising:
- a compressor, a condenser, an economizer, a second-stage throttling device, and an evaporator, which are provided in a refrigerant circuit,
- wherein the economizer comprises:
- an outer shell that internally comprises a heat exchange cavity and a gas-liquid separation cavity and has a length direction;
- an inner shell disposed within the outer shell, wherein the inner shell internally comprises the heat exchange cavity, the gas-liquid separation cavity encircles the inner shell, and the gas-liquid separation cavity is formed between the inner shell and the outer shell;
- a heat exchange tube bundle provided in the heat exchange cavity and extending along the length direction, wherein the heat exchange tube bundle is configured to circulate a cooling medium;
- an inlet of the heat exchange cavity and an outlet of the heat exchange cavity, which are in fluid communication with the heat exchange cavity, wherein the inlet of the heat exchange cavity is in fluid communication with an outlet of the condenser;
- and
- an inlet of the gas-liquid separation cavity, a gas outlet of the gas-liquid separation cavity, and a liquid outlet of the gas-liquid separation cavity, which are provided on the outer shell and are in fluid communication with the gas-liquid separation cavity, wherein the inlet of the gas-liquid separation cavity is in fluid communication with the outlet of the heat exchange cavity through a first-stage throttling device, the gas outlet of the gas-liquid separation cavity is in fluid communication with an air supplementing port of the compressor, the liquid outlet of the gas-liquid separation cavity is in fluid communication with an inlet of the second-stage throttling device, and the inlet of the gas-liquid separation cavity and the gas outlet of the gas-liquid separation cavity are provided to be spaced by a certain distance in the length direction,
- wherein the economizer is configured to enable refrigerant from the condenser to be subjected to heat exchange in the heat exchange cavity first, and then to be subjected to gas-liquid separation in the gas-liquid separation cavity after passing through the first-stage throttling device, such that gas refrigerant flows out of the gas outlet of the gas-liquid separation cavity and is provided to the air supplementing port of the compressor, and liquid refrigerant flows out of the liquid outlet of the gas-liquid separation cavity and is provided to the second-stage throttling device, wherein the refrigerant is different from the cooling medium.
6 more elements
Dependencies are inferred from the claim text.