Multistage diffusion connector for liquid supply pipe of evaporator

Abstract

The invention discloses a multistage diffusion connector for a liquid supply pipe of an evaporator. The multistage diffusion collector comprises an input pipe with a diameter D1, a first-stage diffusion pipe with a diameter D2 is integrally formed at the end part of the input pipe, a second-stage diffusion pipe with a diameter D3 is integrally formed at the end part of the first-stage diffusion pipe, an annular liquid supply head is arranged at the end part of the second-stage diffusion pipe, a plurality of liquid outlets are formed in the annular surface of the end of the annular liquid supply head at intervals, and a plurality of liquid inlet pipes of the evaporator are connected through pipelines. The annular liquid supply head is provided with an inner wall and an outer wall, the outerwall of the annular liquid supply head is connected with the second-stage diffusion pipe, the inner wall is of a closed structure and is provided with an arc-shaped bottom, and a liquid supply ring is formed between the inner wall and the outer wall, so that a refrigerant entering the input pipe successively enters the first-stage diffusion pipe and the second-stage diffusion pipe, then enters the liquid supply ring and is sent to the evaporator from the liquid outlets.

Description

technical field [0001] The invention relates to an auxiliary mechanism for an evaporator, in particular to a multi-stage diffusion connection head for a liquid supply pipe of an evaporator. Background technique [0002] The evaporator is a very important part of the four major components of refrigeration. The low-temperature condensed "liquid" passes through the evaporator to exchange heat with the outside air, and "gas" absorbs heat to achieve the effect of refrigeration. The structure of the evaporator includes a plurality of circulating liquid supply pipelines arranged inside to provide refrigerant, and a plurality of heat exchange fins are installed on the liquid supply pipeline to achieve heat exchange operation. [0003] Usually, one end of the liquid supply pipeline is connected to the liquid inlet pipe to feed in freon, and the other end is connected to the liquid outlet pipe. Since the circulation pipes in the evaporator are arranged in parallel, and there is only o...

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Problems solved by technology

[0003] Usually, one end of the liquid supply pipeline is connected to the liquid inlet pipe to feed in freon, and the other end is connected to the liquid outlet pipe. Since the circulation pipes in the evaporator are arranged in parallel, and there is only one liquid inlet pipe, how to connect It is a problem in this field to connect one liquid inlet pipe to multiple circulating liquid supply pipes. The most common method is to use a long liquid inlet pipe to seal one end, and the circulating liquid supply pipes are connected to the side of the liquid inlet pipe in turn. , and then enter the liquid from the unsealed end, which leads to the high pressure of the liquid flow near the inner liquid inlet, and the small one at the far end, resulting in inconsistent liquid volume in each circulation tube, thereby reducing the cooling effect

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