Multistage gas pressure reduction heating equipment and multistage gas pressure reduction heating method

Abstract

The invention discloses multistage gas pressure reduction heating equipment. The multistage gas pressure reduction heating equipment comprises a first cold-hot separation pressure reducer, a second cold-hot separation pressure reducer, a first cold energy output device and a second cold energy output device, wherein each cold-hot separation pressure reducer comprises a high-pressure gas inlet, a hot gas outlet and a cold gas outlet, each cold energy output device comprises a gas input port and a gas output port, the hot gas outlet and the cold gas outlet of the first cold-hot separation pressure reducer are connected with the gas input port of the first cold energy output device, the gas output port of the first cold energy output device is connected with a high-pressure gas inlet of the second cold-hot separation pressure reducer, the cold gas outlet of the second cold-hot separation pressure reducer is connected with the gas input port of the second cold energy output device, and the hot gas outlet of the second cold-hot separation pressure reducer and the gas output port of the second cold energy output device are respectively connected with a downstream pipeline. The invention further provides a multistage gas pressure reduction heating method. The multistage gas pressure reduction heating equipment and the multistage gas pressure reduction heating method can improve the efficiency of refrigeration and heating.

Description

technical field [0001] The invention belongs to the field of gas decompression equipment, and in particular relates to a multi-stage gas decompression heating equipment and method. Background technique [0002] see figure 1 , figure 1 Shown is the schematic diagram of the existing gas decompression equipment, high-pressure gas enters the annular air chamber 92 from the inlet nozzle 91, and is sprayed into the swirl chamber 94 along the tangential high speed through the swirl nozzle 93, and in the swirl chamber 94 A high-speed rotating air flow is formed. Since the inner ring rotation angular velocity of the high-speed rotating gas entering the swirl chamber 94 is faster than the outer ring rotation angular speed, the gas in the inner ring acts on the gas in the outer ring, and as a result, the temperature of the gas in the inner ring drops. The temperature of the gas in the outer ring rises, the hot flow flows out from the hot flow port 95 , the cold flow flows out from th...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-stage gas decompression heating equipment and method, which solves the problem that the existing gas decompression equipment cannot avoid large fluctuations in parameters such as the flow rate and pressure of upstream and downstream gases, resulting in low refrigeration and heating efficiency.

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