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Self-cascade refrigeration system with double-stage compression function

A refrigeration system and two-stage compression technology, which is applied in the direction of compressors, refrigerators, compressors, etc., can solve the problems of multiplied system components, increased production costs, complex refrigeration systems, etc., to achieve improved efficiency, improved effect, and reliability good sex effect

Active Publication Date: 2018-08-17
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current self-cascading refrigeration technology usually consists of two to three independent compression refrigeration cycles with different working temperature zones, resulting in a multiple increase in system components, increasing production costs and making the refrigeration system more complex, with low efficiency and energy consumption. Major issues need to be improved

Method used

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  • Self-cascade refrigeration system with double-stage compression function
  • Self-cascade refrigeration system with double-stage compression function
  • Self-cascade refrigeration system with double-stage compression function

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Embodiment Construction

[0018] The invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] like figure 1 As shown, the main components of the self-cascading refrigeration system proposed by the present invention include a compressor 1, an evaporator 2, a condensation heat exchanger 3, a gas-liquid separator 4, a two-way valve 5, a regenerator 6, and a first throttling component 7. Condensing evaporator 8 , three-way valve 9 and second throttling component 10 .

[0020] like figure 1 As shown, the compressor 1 adopts a two-stage compressor, which has a suction port, an exhaust port and an intermediate gas supply port. The refrigerant adopts two non-azeotropic refrigerants, among which the high boiling point refrigerant can be selected but not limited to R600a, R134a, R22 or R32, and the low boiling point refrigerant can be selected but not limited to R23 or R14. The exhaust port of the compressor 1 is connected to the condenser 3 and the g...

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Abstract

The invention discloses a self-cascade refrigeration system with a double-stage compression function. The self-cascade refrigeration system is characterized in that a compressor (1) is provided with an intermediate air supplement port, refrigerants adopt two non-azeotropic refrigerants, an exhaust port of the compressor is sequentially connected with a condenser (3) and a gas-liquid separator (4),the high-boiling-point refrigerant discharged from the lower part of the gas-liquid separator sequentially flows through a heat regenerator (6), a first throttling component (7), a condensation evaporator (8) to a port A of a three-way valve (9), the low-boiling-point refrigerant discharged from the upper part of the gas-liquid separator sequentially flows through the condensation evaporator (8),a second throttling component (10), an evaporator (2), a rectifying pipe (11) arranged in the gas-liquid separator and the heat regenerator (6) and then is mixed with the refrigerant discharged froma port B of the three-way valve and then is returned to an air suction port of the compressor, and a port C of the three-way valve is connected with the air supplement port of the compressor. According to the system, the structure is simple, the power consumption can be effectively reduced, the refrigerating capacity can be improved, the lower temperature can be prepared, and the efficiency can beimproved.

Description

technical field [0001] The invention relates to a refrigeration system, in particular to a self-cascading refrigeration system with two-stage compression. Background technique [0002] Self-cascading refrigeration technology has been widely used in the field of low-temperature refrigeration, and can produce low temperatures from -40°C to -150°C. It is most widely used in cryogenic tanks and natural gas liquefaction. However, the current self-cascading refrigeration technology usually consists of two to three independent compression refrigeration cycles with different working temperature zones, resulting in a multiple increase in system components, increasing production costs and making the refrigeration system more complex, with low efficiency and energy consumption. Major issues need to be improved. Contents of the invention [0003] In order to solve the above-mentioned problems in the prior art, the present invention proposes a self-cascading refrigeration system with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/00F25B31/00F25B40/06F25B41/04F25B41/06F25B43/00F25B41/20F25B41/30
CPCF25B9/006F25B31/00F25B40/06F25B43/006F25B2400/07F25B2400/0419F25B41/30F25B41/20
Inventor 陈远远陈桂福李欣
Owner GREE ELECTRIC APPLIANCES INC
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