Dual evaporating temperature refrigerating system and control method thereof

A refrigeration system, double evaporation technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of affecting stability, large heat exchange loss in the refrigeration room, and inability to achieve simultaneous cooling of two chambers, and achieves improved performance. Stability, avoid unstable conditions, compact structure

Pending Publication Date: 2019-10-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of refrigerator cannot meet the basic requirements of cooling the two chambers at the same time, and it is easy to form harsh working conditions such as cross flow and compressor back suction during frequent switching, which seriously affects the stability.
[0005] Generally speaking, the existing refrigerator system has only one evaporating temperature, so there is a large heat exchange loss in the cold room

Method used

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  • Dual evaporating temperature refrigerating system and control method thereof
  • Dual evaporating temperature refrigerating system and control method thereof
  • Dual evaporating temperature refrigerating system and control method thereof

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] Such as figure 1 Shown is the device schematic diagram of the refrigeration system of the present invention.

[0034] The present invention provides a dual evaporation temperature refrigeration system, including: compressor 10, condenser 20, No. 1 heat recovery capillary 31, No. 2 heat recovery capillary 32, freezer evaporator 41, refrigerator evaporator 42 and control valve group 50.

[0035]The compressor 10 includes: an exhaust port, a No. 1 suction port and a No. 2 suction port; the compressor 10 is a double-cylinder rotary compressor, including: a No. 1 liquid storage device 121, a No. 2 liquid storage device 122, two cylinders connected in parallel: No. 1 cylinder 111 and No. 2 cylinder 112; the No. 1 liquid accumulator 121 is connected to the air inlet of No. 1 cylinder 111, and the No. 2 liquid accumulator 122 is conn...

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PUM

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Abstract

The invention discloses a dual evaporating temperature refrigerating system and a control method thereof. The system comprises a compressor, a condenser, two stages of backheating capillary tubes, a refrigerating chamber evaporator, a freezing chamber evaporator and a control valve set. An exhaust opening of the compressor is connected with an inlet of the condenser. An outlet of the condenser isconnected with capillary tube segment inlets of the first backheating capillary tube and the second backheating capillary tube. Capillary tube segment outlets of the backheating capillary tubes are connected with corresponding evaporator inlets, and evaporator outlets are connected with backheating tube segment inlets of the backheating capillary tubes. Backheating tube segment outlets of the backheating capillary tubes are connected with two reservoirs of the compressor. The control method of the system is further disclosed. Different work modes of simultaneous refrigerating or independent refrigerating of the system can be achieved. The dual evaporating temperature refrigerator system is achieved by the single compressor, irreversible losses caused by the too large heat transfer temperature different are reduced, and the energy efficiency of a refrigerator is improved.

Description

technical field [0001] The invention relates to a refrigeration cycle system, in particular to a refrigeration system with double evaporation temperatures and a control method thereof. Background technique [0002] With the rapid development of the economy and the improvement of residents' living conditions, refrigerators have become one of the necessary household appliances for every family, with a huge annual output. At the same time, because the refrigerator provides the function of continuously keeping food fresh, the refrigerator must be kept powered on for a long time, and its power consumption accounts for a large proportion of the total power consumption of household appliances. In addition, due to the continuous improvement of people's living standards, the expansion of residential areas, and changes in living habits, the storage capacity of refrigerators per capita is gradually increasing, and energy consumption is also increasing accordingly. Therefore, based on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25D11/00F25D19/00F25D29/00F25B5/02F25B31/00F25B41/06F25B40/06F25B41/37
CPCF25D11/00F25D19/003F25D29/003F25B5/02F25B31/00F25B40/06F25B41/30
Inventor 吴建华李佳宸
Owner XI AN JIAOTONG UNIV
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