Refrigeration system and refrigerated transport vehicle with same

Abstract

A refrigeration system and a refrigerated transport vehicle having the same. The invention discloses a refrigeration system, which includes a compressor, a condenser, a throttling component and an evaporator, and also includes an unloading branch, the unloading branch is connected in parallel with the evaporator branch, and the unloading branch It includes a first unloading valve and a first throttling element connected in series with the first unloading valve, wherein the evaporator branch refers to a pipeline section formed in series between the evaporator and the throttling component. The refrigerating system of the present invention has an unloading function, which can be unloaded when the system pressure rises, so as to reduce the pressure on the condenser side and avoid damage to the refrigerating unit to a certain extent.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a refrigeration system. The invention also relates to a refrigerated transport vehicle. Background technique [0002] The refrigerated transport vehicle should maintain the temperature in the refrigerated compartment as stable as possible during work to ensure the freshness of the refrigerated goods. When the refrigerated transport vehicle is affected by the external environment and / or the operating state of the vehicle during the working process, the pressure of the refrigeration system is prone to increase. In order to prevent the refrigerating unit from being damaged due to excessive system pressure, the refrigerating unit of the refrigerated transport vehicle in the prior art is usually equipped with a high-pressure switch, so as to perform protection shutdown when the system pressure is high. For example, when the ambient temperature is high in summer or the refriger...

AI Technical Summary

Problems solved by technology

For example, when the ambient temperature is high in summer or the refrigerated transport vehicle adopts a low gear to go up a steep slope (heavy load and slow vehicle speed), the system pressure will be high, and it is very easy to trigger the high pressure switch and cause a protective shutdown

Frequent shutdowns will cause temperature fluctuations in the refrigerated compartment, affecting the quality of refrigerated goods and affecting the reliability of the refrigeration unit

[0003] Therefore, how to effectively solve the problem of damage and / or protection shutdown of the refrigeration unit caused by the high pressure of the refrigeration system of the refrigerated transport vehicle is one of the research goals of those skilled in the art

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