Water-cooled parallel flow heat exchanger with rows of flat pipes

Abstract

The invention discloses a water-cooled parallel flow heat exchanger with rows of flat pipes and relates to the technical field of heat exchangers. The water-cooled parallel flow heat exchanger comprises a first flow collecting pipe and a second flow collecting pipe positioned on one side of the first flow collecting pipe, wherein the multiple flat pipes are arranged between the first flow collecting pipe and the second flow collecting pipe; a plurality of cooling fins are fixedly mounted on the upper and lower end surfaces of the multiple flat pipes; all the cooling fins are triangular; the cooling fins on both sides of the flat tubes are designed to be staggered; a water inlet pipe is fixedly mounted on the upper end surface of the first flow collecting pipe; a water outlet pipe is fixedly mounted on the lower end surface of the first flow collecting pipe; both the water inlet pipe and the water outlet pipe are L-shaped; the water inlet pipe is inserted into the flat pipe positioned at the top end; the water outlet pipe is connected in a sleeving manner onto one end of the flat pipe positioned at the bottom end; and an air inlet pipe is fixedly mounted at the position, close to one side, of the upper end surface of the flat pipe positioned at the top end, so that the heat exchange efficiency of the heat exchanger can be improved while the heat exchanger is convenient to assemble, and then the use performance of the heat exchanger can be improved.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a water-cooled parallel flow heat exchanger with flat tubes connected in rows. Background technique [0002] Parallel flow heat exchanger is an all-aluminum heat exchanger with compact structure, high heat exchange efficiency, and cost advantage compared with ordinary copper tube heat exchanger, and has been paid more and more attention by various air-conditioning manufacturers. Ideally, the refrigerant should be evenly distributed into each flat tube of the parallel flow heat exchanger to ensure the best heat transfer efficiency of the parallel flow heat exchanger. [0003] The headers of parallel flow heat exchangers are usually produced in a thin cylindrical structure. At the same time, in order to reduce production costs, the refrigerant distribution method mostly adopts internal split flow. Because the external flow requires the assistance of a flow divider, a distr...

AI Technical Summary

Problems solved by technology

In the present invention, multiple circuits are connected in series, and two rows of flat tubes are stacked together, which reduces the windward area of ​​the heat exchanger, and is suitable for occasions where the installation space is limited and the diameter of the fan is small. However, during use, all the The collecting pipe and the flat pipe are integrated, which is not easy to disassemble and replace

[0006] When the parallel flow heat exchanger in the above patent is in use, it is difficult to ensure high heat exchange efficiency while facilitating splicing and assembly, which affects the performance of the device

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