Refrigeration system and its liquid separator

Abstract

The invention discloses a refrigeration system and a liquid distributor thereof. The liquid distributor comprises: an inner tube, the lumen of which includes a first taper part whose cross-section gradually decreases along the direction from the first end to the second end; A first interlayer cavity is formed between the inner wall of the intermediate tube and the outer wall of the inner tube. The first interlayer cavity has a second taper portion whose cross-section gradually decreases along the direction from the first end to the second end. The inner tube is provided with a Liquid port, so that the refrigerant mixed through the first tapered part enters the second tapered part from the liquid distribution port; the outer tube, the outer tube is set on the outer layer of the intermediate tube, and the inner wall of the outer tube and the outer wall of the intermediate tube A second interlayer chamber is formed between them, the first end of the outer tube is connected to the outer wall of the inner tube through a folded plate, and a liquid separator is connected between the second end of the outer tube and the outer wall of the intermediate tube. With such an arrangement, the liquid separator of the refrigeration system provided by the present invention can improve the gas-liquid mixing uniformity of the liquid separator, thereby ensuring the uniformity of the refrigerant distributed into the evaporator.

Description

technical field [0001] The invention relates to the technical field of refrigeration, and more specifically, to a refrigeration system and a liquid separator thereof. Background technique [0002] In the refrigeration system, after the refrigerant passes through the throttling device, it becomes a gas-liquid two-phase state and flows into the evaporator. Whether the refrigerant can be evenly distributed to each branch of the evaporator has a crucial impact on the performance of the evaporator and even the entire refrigeration system. The liquid separator is an important auxiliary device, which is used before the evaporator to evenly distribute the gas-liquid two-phase refrigerant to each branch of the evaporator. [0003] The type of liquid separator commonly used in the market is Venturi liquid separator. Its main principle is: after the refrigerant passes through the shrinking and expanding nozzle, the flow rate increases, and the gas-liquid two-phase is mixed evenly, so ...

AI Technical Summary

Problems solved by technology

But it has a disadvantage: the flow of refrigerant in the Venturi liquid separator often causes uneven mixing of liquid and vapor under alternating operating conditions, resulting in uneven final distribution

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