Expansion machine and refrigeration system with same

An expander and expansion pressure technology, applied in the field of expanders and refrigeration systems having the same, can solve problems such as low efficiency of the expander, and achieve the effects of improving operating efficiency and solving low efficiency.

Active Publication Date: 2020-05-08
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide an expander and a refrigeration s

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  • Expansion machine and refrigeration system with same
  • Expansion machine and refrigeration system with same
  • Expansion machine and refrigeration system with same

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[0038] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0039] Such as Figure 1 to Figure 12 As shown, the first embodiment of the present invention provides an expander. The expander includes a cylinder 60, a flange 10 and an adjustment component. The flange 10 is provided on the cylinder 60, the flange 10 is provided with a first receiving groove 11 and a first suction groove 71, the first suction groove 71 is provided on the first receiving groove 11, the first suction groove 71 and The cylinder 60 is in communication, so that gas is introduced into the cylinder 60 through the first suction groove 71. The regulating component is arranged in the first containing groove 11, the regulating component has a circulation passage, a first pressur...

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Abstract

The invention provides an expansion machine and a refrigeration system with the expansion machine. The expansion machine comprises an air cylinder, a flange and an adjusting assembly. The flange is arranged on the air cylinder, a first storage groove and a first air suction groove are formed in the flange, and the first air suction groove is formed in the first storage groove. The adjusting assembly is arranged in the first storage groove, and is provided with a flowing channel, a first pressure channel and a second pressure channel. At least part of the flowing channel is located between thefirst pressure channel and the second pressure channel, and the outlet end of the flowing channel is opposite to the first air suction groove. At least part of the adjusting assembly is rotationally arranged, the first pressure channel communicates with an expansion pressure cavity of the air cylinder, and the second pressure channel communicates with an exhaust pressure cavity of the air cylinder, so that at least part of the adjusting assembly rotates under the differential pressure of the first pressure channel and the second pressure channel, and the suction volume of air is changed by changing the flowing volume of the flowing channel. Thus, the technical problem that an expansion machine in the prior art is low in efficiency is solved.

Description

technical field [0001] The invention relates to the technical field of expanders, in particular, to an expander and a refrigeration system having the same. Background technique [0002] At present, in the vapor compression refrigeration system, the throttling element is an important element to maintain the pressure difference between the condenser and the evaporator and control the flow of the system. The throttling elements commonly used in household and commercial refrigeration equipment are throttle valves and capillary tubes. . Whether it is a throttle valve or a capillary tube, its working principle is to use local resistance loss to rapidly reduce the pressure of the refrigerant. The throttling loss of carbon dioxide in the transcritical cycle accounts for 25%-30% of the total effective energy loss, and even the effective energy loss of traditional refrigerants during the throttling process accounts for 10%-20% of the total system loss. Throttle loss is an irreversib...

Claims

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Application Information

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IPC IPC(8): F25B41/06F25B41/30
CPCF25B2341/06F25B41/30
Inventor 胡余生魏会军徐嘉何洋罗发游任丽萍万鹏凯吴飞
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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