Refrigeration system and its operation control method

A refrigeration system and control mechanism technology, applied in control/regulation systems, refrigerators, refrigeration components, etc., can solve problems such as refrigerant leakage, reduce storage capacity, reduce the probability of refrigerant leakage, and reduce volume size. Effect

Active Publication Date: 2022-06-28
HUASHANG INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, the present invention proposes a kind of refrigerating system, to solve the problem that the refrigerant in the existing refrigerating system is easy to leak

Method used

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  • Refrigeration system and its operation control method
  • Refrigeration system and its operation control method
  • Refrigeration system and its operation control method

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Embodiment Construction

[0039] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0040] In the description of the embodiments of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing this Inventive embodiments and simplified descriptions are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limitin...

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Abstract

The invention relates to the technical field of refrigeration, and provides a refrigeration system and an operation control method thereof. The refrigeration system includes a compression unit, a siphon tank, a low-pressure circulation barrel and a PID control mechanism. An oil cooling valve is arranged on the communication pipeline between the compression unit and the siphon tank, and the communication between the siphon tank and the low-pressure circulation barrel An electronic expansion valve is provided on the pipeline, a liquid level sensor is provided on the siphon tank, and the PID control mechanism is respectively connected with the oil cooling valve, the electronic expansion valve and the liquid level sensor. The invention determines the minimum liquid level value of the siphon tank by collecting the number of oil cooling valves opened, and then adjusts the storage capacity of the refrigerant liquid on the high-pressure side by controlling the liquid level of the siphon tank, so that when the heat load of the evaporation system is small, more The refrigerant is stored in the low-pressure circulation barrel, thereby reducing the probability of refrigerant leakage.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a refrigeration system and an operation control method thereof. Background technique [0002] The pump liquid supply refrigeration system is a form of liquid pump pressurized liquid supply. A low-pressure circulating barrel (or gas-liquid separator) is set between the evaporation system and the expansion valve, and the low-temperature refrigerant liquid inside is pressurized by the pump. After that, the evaporation system is forced to supply multiple cycles of liquid, and the refrigerant returning from the evaporation system to the low-pressure circulation barrel is gas-liquid two-phase. The flash vapor is sucked in by the suction end of the compressor, and the separated liquid and the new supplementary liquid of the equivalent evaporation are pumped to the evaporation system for recirculation. Compared with other liquid supply methods, the refrigerant in the evaporator of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B41/31F25B49/02F25B43/02F25B43/00G05D9/12
CPCF25B1/00F25B49/02F25B43/02F25B43/006G05D9/12
Inventor 孙天慧李坤赵险峰张蕊孙建军
Owner HUASHANG INT ENG CO LTD
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