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Double-temperature refrigerating system and refrigerating device

A refrigeration system and refrigeration device technology, which is applied to household refrigeration devices, refrigerators, refrigeration components, etc., and can solve the problems that the double evaporators cannot independently control the refrigeration cycle, cannot effectively control temperature fluctuations, and have complex structures.

Inactive Publication Date: 2021-07-09
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the dual evaporating temperature refrigeration system in the related art has the following problems: the dual evaporators cannot independently control their respective refrigeration cycles, and cannot effectively control the large temperature fluctuation between the two evaporating temperatures; or use two completely parallel evaporators circuit to achieve independent control of two evaporative refrigeration cycles, but the structure is complex and the throttling expansion loss is relatively large

Method used

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  • Double-temperature refrigerating system and refrigerating device
  • Double-temperature refrigerating system and refrigerating device
  • Double-temperature refrigerating system and refrigerating device

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 1As shown, the dual-temperature refrigeration system includes: a compressor 1 , a condenser 21 , a first evaporator 22 , a second evaporator 23 , a first throttling device 31 and a second throttling device 32 .

[0043] The compressor 1 is used for compressing refrigerant. The compressor 1 includes a first compression chamber 12 on the upper part and a second compression chamber 13 on the lower part. Both the first compression chamber 12 and the second compression chamber 13 are variable volume compression chambers. A discharge port is provided on the top of the compressor 1 , a first suction port 14 is provided on the first compression chamber 12 , and a second suction port 15 is provided on the second compression chamber 13 .

[0044] One end of the condenser 21 is connected to the exhaust port of the compressor 1, and the other end is respectively connected to the first evaporator 22 and the second evaporator 23, and the first evaporator 22 and the sec...

Embodiment 2

[0050] Such as figure 2 As shown, the difference between the dual-temperature refrigeration system in this embodiment and the dual-temperature refrigeration system in Embodiment 1 is that the dual-temperature refrigeration system also includes a first on-off valve 41 and an intermediate on-off valve 43, and the first on-off valve 41 Set between the first evaporator 22 and the first suction port 14, one end of the intermediate on-off valve 43 is connected between the first on-off valve 41 and the first suction port 14, and the other end of the intermediate on-off valve 43 It is connected between the second evaporator 23 and the second suction port 15 . The remaining parts are the same as the dual-temperature refrigeration system in Embodiment 1, and will not be repeated here.

[0051] In this embodiment, the dual-temperature refrigeration system has two working modes:

[0052] First, when both the first evaporator 22 and the second evaporator 23 need refrigeration, the first...

Embodiment 3

[0056] Such as image 3 As shown, the difference between the dual-temperature refrigeration system in this embodiment and the dual-temperature refrigeration system in Embodiment 1 is that the dual-temperature refrigeration system also includes a second on-off valve 42 and an intermediate on-off valve 43, and the second on-off valve 42 Located between the second evaporator 23 and the second suction port 15, one end of the intermediate on-off valve 43 is connected between the second on-off valve 42 and the second suction port 15, and the other end of the intermediate on-off valve 43 It is connected between the first evaporator 22 and the first suction port 14 . The remaining parts are the same as the dual-temperature refrigeration system in Embodiment 1, and will not be repeated here.

[0057] In this embodiment, the dual-temperature refrigeration system has two working modes:

[0058] First, when both the first evaporator 22 and the second evaporator 23 need refrigeration, th...

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Abstract

The invention provides a double-temperature refrigerating system and a refrigerating device applying the system.The double-temperature refrigerating system comprises a compressor with a first compression cavity and a second compression cavity, a condenser, a first evaporator and a second evaporator, the first evaporator and the second evaporator are connected in parallel, and the first evaporator is connected between a first air suction port and the condenser; the second evaporator is connected between the second air suction port and the evaporator. According to the dual-temperature refrigerating system, the circulation loop formed by connecting the two evaporators in parallel is adopted to form independent dual-evaporation temperature circulation, such that dual-evaporation temperature independent control can be achieved, it is accurate to control the temperature and small in fluctuation, respective refrigeration cycles can be controlled at any time according to the evaporation temperatures of the two evaporators, so that food storage is facilitated.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a dual-temperature refrigeration system and a refrigeration device. Background technique [0002] In the refrigeration system of the freezer in the related art, the compressor is usually a single-cylinder compressor, and the two evaporators in the refrigeration system are usually connected in series. The system has only one evaporation temperature, and the refrigeration and freezing compartments cannot be controlled separately, resulting in two The temperature of the compartment fluctuates greatly, which is not conducive to food preservation and energy saving. In order to meet the accuracy of temperature control in different compartments of the freezer, a dual evaporation temperature refrigeration system is proposed in the related art. [0003] However, the dual evaporating temperature refrigeration system in the related art has the following problems: the dual e...

Claims

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Application Information

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IPC IPC(8): F25B5/02F25B31/00F25B41/20F25B41/30F25B49/02F25D19/00
CPCF25B5/02F25B31/00F25B49/02F25D19/00
Inventor 廖四清尚凯锋曾令华区永东卢耀汕肖坤
Owner GUANGDONG MEIZHI COMPRESSOR
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