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A technology of refrigeration equipment and condenser, applied in the field of refrigeration equipment, can solve problems such as complex structure
Active Publication Date: 2022-03-25
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +1
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Abstract
Description
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Problems solved by technology
However, at present, such dual-temperature systems usually use cascade cycles, two-stage compression, etc., which are mainly due to the different boiling points of different substances in the mixed refrigerant, or the use of different exhaust pressures after multiple compressions, and the structure is complex.
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Embodiment 1
[0043] Such as figure 1 As shown, a refrigeration device includes a compressor 102, a first condenser 104, a second condenser 106, a first evaporator 108, a second evaporator 110, a first ejector 112, a second ejector 114, a first A throttling component 118 and a first gas-liquid separator 116 . Wherein, the first throttling component 118 may be a throttling device such as a capillary tube or an expansion valve. The connection mode of the system is: after the refrigerant is discharged from the exhaust port of the compressor 102, it is divided into two paths, the first path enters the inlet port of the second condenser 106, and the outlet port of the second condenser 106 is connected to the port of the second ejector 114. High pressure inlet port, the outlet port of the second ejector 114 is connected to the inlet port of the second evaporator 110, and the outlet port of the second evaporator 110 is connected to the suction port of the compressor 102; the second path enters th...
Embodiment 2
[0048] Such as figure 2 As shown, the difference from the first embodiment above is that the outlet port of the second evaporator 110 is connected to the low-pressure inlet port of the first ejector 112, and the outlet port of the first evaporator 108 is connected to the suction port of the compressor 102. mouth.
[0049] The working process of the system is: the refrigerant is compressed by the compressor 102 to form a high-temperature and high-pressure gas, and is divided into two paths. The first path is cooled by the second condenser 106 to form a high-pressure liquid-phase refrigerant and enters the second ejector 114. , the two-phase low-pressure refrigerant injected by the second injector 114 becomes gaseous after absorbing heat in the second evaporator 110, and enters the low-pressure inlet port of the first injector 112; the second high-temperature and high-pressure gas is introduced into the second In an ejector 112, the sub-high temperature refrigerant ejected fro...
Embodiment 3
[0051] Such as image 3 As shown, the second throttling component 120 is added on the basis of the first embodiment above. Specifically, the outlet end of the second ejector 114 is connected to the inlet end of the second throttling member 120, and the inlet end of the second evaporator 110 is connected to the outlet end of the second throttling member 120, that is, the second ejector 114 The second evaporator 110 is connected via a second throttling member 120 .
[0052] The working process of the system is as follows: the refrigerant is compressed by the compressor 102 to form a high-temperature and high-pressure gas, and is separated into two paths. The first path is cooled by the first condenser 104 to form a high-pressure liquid-phase refrigerant and enters the second ejector 114. Inside, the liquid-phase high-pressure refrigerant sprayed by the second ejector 114 forms a low-temperature and low-pressure two-phase state after being throttled by the second throttling elem...
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Abstract
The invention provides a refrigeration device, comprising a compressor, a first ejector, a first condenser, a second condenser, a first evaporator, a second evaporator and a second ejector; the compressor is provided with a suction port and the exhaust port; the high-pressure inlet port of the first ejector is connected to the exhaust port; the inlet port of the first condenser is connected to the outlet port of the first ejector; the inlet port of the second condenser is connected to the exhaust port; the second One of the outlet port of the first evaporator and the outlet port of the second evaporator is connected to the suction port, and the other is connected to the low-pressure inlet port of the first ejector; the high-pressure inlet port of the second ejector is connected to the outlet of the second condenser The low-pressure inlet port of the second ejector is connected with the outlet port of the first condenser, the outlet port of the second ejector is connected with the inlet port of the second evaporator, and the outlet port of the first condenser is connected with the outlet port of the first evaporator The ingress connection. The cascade heating and cooling with large temperature span can be realized through the ejector action of the injector, and the energy efficiency can be improved.
Description
technical field [0001] The invention belongs to the technical field of refrigeration devices, and in particular relates to refrigeration equipment. Background technique [0002] In the field of freezing and refrigeration / heat pump heating, in some cases, due to the large temperature span of being frozen or heated, for example, in direct heat pump water heaters, the water needs to be heated from 15 degrees Celsius to 50 degrees Celsius, and a single condenser only A condensing pressure, which means that the overall system operates at a higher condensing temperature, resulting in a less energy efficient system. Or in a refrigeration system in a very hot area, the outdoor ambient temperature is very high, and the temperature required for freezing reaches -30 degrees Celsius to -60 degrees Celsius, and the efficiency of the refrigeration system with a single exhaust is low. By setting up double evaporators or double condensers to realize cascade utilization of energy, the effic...
Claims
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Application Information
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Patent Type & Authority Patents(China)
IPC IPC(8): F25B6/02F25B41/31F25B49/02
CPCF25B6/02F25B41/00F25B49/02
Inventor 汤奇雄赵家强
Owner GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD
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