A Two-Stage Compression Low-Temperature Refrigeration System
A low-temperature refrigeration system and two-stage compression technology, applied in refrigerators, compressors, refrigeration components, etc., can solve problems such as energy loss, achieve the effects of reducing pressure ratio, improving performance, and reducing losses
Active Publication Date: 2019-11-22
尊创电器(苏州)有限公司
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Problems solved by technology
In a conventional two-stage compression refrigeration system, the subcooling source of the high-temperature liquid in the intercooler is provided by part of the high-temperature and high-pressure liquid that absorbs heat after throttling, and the expansion and pressure-reducing components between the condenser and the evaporator in the refrigeration system, etc., resulting in energy loss
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[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0010] see figure 1 As shown, a two-stage compression low-temperature refrigeration system includes:
[0011] High-pressure refrigeration compressor 1, intercooler 2, low-pressure refrigeration compressor 3, gas-liquid separator 4, vortex tube 5, evaporator 6, ejector 7, regenerator 8, condenser 9;
[0012] The outlet of the high-pressure refrigeration compressor 1 is connected to the inlet of the condenser 9, the outlet of the condenser 9 is connected to the high-pressure liquid inlet of the regenerator 8, and the high-pressure liquid outlet of the regenerator 8 is connected to the main fluid inlet of the ejector 7 The diffuser outlet of the ejector 7 is connected to the two-phase ...
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The invention discloses a double-stage compression low-temperature refrigeration system. The system is characterized in that an outlet of a high-pressure-stage refrigeration compressor is connected with an inlet of a condenser, an outlet of the condenser is connected with a high-pressure liquid inlet of a heat regenerator, and a high-pressure liquid outlet of the heat regenerator is connected witha main fluid inlet of an ejector; a diffusion outlet of the ejector is connected with a two-phase fluid inlet of a gas-liquid separator, a gas outlet of the gas-liquid separator is divided into two paths, one path is connected with a low-pressure fluid inlet of the heat regenerator, the other path is connected with a low-pressure fluid inlet of a intercooler, and a low-pressure fluid outlet of the heat regenerator is connected with an inlet of a low-pressure-stage refrigeration compressor; a low-temperature fluid outlet of the intercooler is connected with a low-temperature fluid inlet of thegas-liquid separator; and a liquid outlet of the gas-liquid separator enters a vortex tube for vortex expansion and then is divided into a cold fluid and a hot fluid, a cold fluid outlet is connectedwith an inlet of an evaporator, and an outlet of the evaporator is connected with an driving fluid inlet of the ejector. According to the double-stage compression low-temperature refrigeration system, the ejector and the vortex tube replace a throttling pressure reduction element to expand and reduce the pressure, and therefore, the performance of the double-stage refrigeration system can be improved.
Description
technical field [0001] The invention relates to the technical field of low-temperature refrigeration, in particular to a two-stage compression low-temperature refrigeration system. Background technique [0002] With the rapid development of society and the urgent update of cold chain logistics, the demand for cryogenic refrigeration systems continues to increase. In a conventional two-stage compression refrigeration system, the subcooling source of the high-temperature liquid in the intercooler is provided by part of the high-temperature and high-pressure liquid that absorbs heat after throttling, and the expansion and pressure-reducing components between the condenser and the evaporator in the refrigeration system, etc., resulting in energy loss. Contents of the invention [0003] The object of the present invention is to provide a two-stage compression low-temperature refrigeration system to further improve the operating performance of the refrigeration system, aiming a...
Claims
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IPC IPC(8): F25B1/10F25B9/08F25B9/04F25B43/00
CPCF25B1/10F25B9/04F25B9/08F25B43/00
Inventor 宁静红
Owner 尊创电器(苏州)有限公司