Parallel flow heat exchanger and air conditioner with same

Abstract

The invention provides a parallel flow heat exchanger and an air conditioner with the same. The parallel flow heat exchanger comprises a first flow collecting pipe, a first pipe, a second pipe a second flow collecting pipe, multiple flat pipe and a distributing assembly; the interior of the first flow collecting pipe is divided into an upper chamber and a lower chamber through a first partition plate; the first pipe and the second pipe are communicated with the first upper chamber and the lower chamber respectively; the interior of the second flow collecting pipe is divided into multiple sub-chambers through multiple partition assemblies, and the sub-chambers are communicated with one another through channels formed in the partition assemblies; the distributing assembly comprises a distributing box with a distributing cavity and an inlet pipeline and at least one outlet pipeline which are communicated with the distributing cavity, the inlet pipeline is communicated with the lowermost sub-chamber, and the outlet pipelines are communicated with the other sub-chambers respectively. According to the parallel flow heat exchanger, refrigerating agent distribution is uniform, and the heat exchange effect is good.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to designing a parallel flow heat exchanger and an air conditioner with the parallel flow heat exchanger. Background technique [0002] The parallel flow heat exchanger is mainly composed of flat tubes with multiple micro-channels, fins sandwiched between flat tubes, headers, and input and output tubes for the refrigerant to enter and exit, almost all of which are made of similar aluminum alloys. Composed of high-quality materials, it has the advantages of high heat exchange efficiency, compact structure, low cost, and simple manufacturing process, so it has received more and more attention and application in the field of air conditioning. [0003] The application of the current parallel flow heat exchanger has shifted from the single cooler system to the heating and cooling system. For the existing parallel flow heat exchanger applied to the heating and cooling machine, wh...

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Problems solved by technology

[0003] The application of the current parallel flow heat exchanger has shifted from the single cooler system to the heating and cooling system. For the existing parallel flow heat exchanger applied to the heating and cooling machine, when the parallel flow heat exchanger is used as the evaporator, due to The pressure of the refrigerant is much lower than that of condensation, so the refrigerant generates gas-liquid stratification in the header. Since the liquid density is higher than that of the gas, there is more liquid in the lower part of the header and less liquid in the upper part, resulting in various The distribution of refrigerant in the flat tube is uneven, which seriously affects the heat exchange effect

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