Flow guide tube assembly of heat exchanger, heat exchanger and air conditioner

Abstract

The invention discloses a flow guide tube assembly of a heat exchanger, a heat exchanger and an air conditioner, wherein the flow guide tube assembly of the heat exchanger comprises a main flow guide pipe and two and more branch flow guide tubes connected to one end of the main flow guide pipe; the branch flow guide tubes are arranged in parallel; each branch flow guide tube comprises a main tube part and a flow limiting part connected to the main tube part; the inner diameter of each flow limiting part is smaller than that of each main tube part; each flow limiting part comprises a first flow limiting part and a second flow limiting part which meet the following formula: L1 / L2 is equal to (d1 / d2)n; n is greater than or equal to 4.4 and smaller than or equal to 4.8; d1 / d2 is greater than or equal to 0.8 and smaller than or equal to 1.25; L1 represents the length of the first flow limiting part; d1 represents the inner diameter of the first flow limiting part; L2 represents the length of the second flow limiting part; d2 represents the inner diameter of the second flow limiting part. Accordingly, the flow limiting parts in the using process are simple in structure; the flow of refrigerants flowing through tube flow paths of the flow guide tube assembly of the heat exchanger can be adjusted, so that the refrigerants flowing through tube flow paths of the flow guide tube assembly of the heat exchanger can exchange heat thoroughly; the temperatures of the refrigerants in outlet ends of the branch flow guide tubes trend to be consistent.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a draft pipe assembly of a heat exchanger, a heat exchanger and an air conditioner. Background technique [0002] The current diversion tube assembly of the heat exchanger mainly includes a diversion main pipe and several diversion sub-pipes. The refrigerant in the sub-pipe can be fully utilized, so that the temperature of the refrigerant at the outlet end of the diversion sub-pipe tends to be consistent. In this way, there will be the following problems: it is necessary to adjust the shape of each diversion branch pipe and the process of the passage of the refrigerant during use, and the bending structure is complicated. Contents of the invention [0003] The main purpose of the present invention is to provide a heat exchanger guide tube assembly and an air conditioner, aiming to solve the problems caused by the current heat exchanger guide tube assembly in order to ...

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a heat exchanger guide tube assembly and an air conditioner, aiming to solve the problems caused by the current heat exchanger guide tube assembly in order to make full use of the refrigerant flowing through the guide pipe. complex internal structure of the

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