Quick freezer with hot gas defrosting function

A quick-freezer and functional technology, applied in defrosting, household appliances, lighting and heating equipment, etc., can solve problems such as no evaporation space, incomplete evaporation of refrigerant, deformation of compressor suction valve plate, etc.

Pending Publication Date: 2020-07-07
武汉贝索医疗器械有限公司
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Problems solved by technology

[0002] The installation pipelines of split quick-freezers are of different lengths. The quick-freezer may directly switch to frost mode after cooling. Since the refrigerant in the upper evaporator and lower evaporator is not completely evaporated, if the high-pressure hot gas of the defrosting solenoid valve directly enters the upper evaporator during defrosting , the lower evaporator, so that the evaporator passes through the gas-liquid separa

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  • Quick freezer with hot gas defrosting function

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] In an embodiment of the present invention, a quick-freezing machine with hot gas defrosting function is provided, such as figure 1 As shown, intercooling solenoid valve 7, refrigeration solenoid valve 11, and defrosting solenoid valve 19 are set in the quick-freezing machine. The on-off of the refrigerant circulation in the circuit, and the defrosting solenoid valve controls the on-off of the refrigerant circulation in the defrosting pipeline. It also includes a low-pressure pressure sensor 20 and a medium-pressure pressure sensor 21. The low-pressure pressure sensor is used to measure the ...

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Abstract

The invention discloses a quick freezer with a hot gas defrosting function. A medium-cooling electromagnetic valve, a refrigeration electromagnetic valve and a defrosting electromagnetic valve are arranged in the quick freezer, the medium-cooling electromagnetic valve controls on-off of refrigerant circulation in a super-cooling pipeline, the refrigeration electromagnetic valve controls on-off ofrefrigerant circulation in a liquid supply pipeline, and the defrosting electromagnetic valve controls on-off of refrigerant circulation in a defrosting pipeline. In the quick freezer, a condenser condenses a gaseous refrigerant into a liquid state through air exchange, a liquid storage device stores the refrigerant, and an expansion valve throttles and depressurizes the high-pressure liquid refrigerant to become a low-pressure gas-liquid mixture. An upper evaporator enables the refrigerant to exchange heat with air to continuously reduce the temperature of the air around the evaporator, and alower evaporator enables the refrigerant to exchange heat with the air to continuously reduce the temperature of the air around the evaporator. Through the design, a compressor liquid impact fault ofa refrigeration system can be avoided during defrosting of the quick freezer.

Description

technical field [0001] The invention belongs to the technical field of plasma freezing, and in particular relates to a quick-freezing machine with the function of hot gas defrosting. Background technique [0002] The installation pipelines of split quick-freezers are of different lengths. The quick-freezer may directly switch to frost mode after cooling. Since the refrigerant in the upper evaporator and lower evaporator is not completely evaporated, if the high-pressure hot gas of the defrosting solenoid valve directly enters the upper evaporator during defrosting , the lower evaporator, so that the evaporator passes through the gas-liquid separator and the unevaporated liquid in the suction pressure regulating valve directly enters the compressor for suction. There is no evaporation space for the refrigerant in the compressor, and the liquid refrigerant is directly sucked into the low-pressure stage of the two-stage compressor. Suction valve plate, since the compressor can ...

Claims

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Application Information

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IPC IPC(8): F25D31/00F25D21/06
CPCF25D21/002F25D21/06F25D31/00
Inventor 韩乐民邹晓明代江勇张超张小虎金灿王本利周武屈涛曾凡强黄顺
Owner 武汉贝索医疗器械有限公司
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