Parallel flow heat exchanger
A parallel flow heat exchanger and header technology, applied in heat exchange equipment, evaporator/condenser, lighting and heating equipment, etc., can solve the problem of limited heat exchange surface of fins, detachment and displacement of welded fins and other problems to achieve the effect of increasing heat exchange surface, improving performance, preventing separation and horizontal displacement
Inactive Publication Date: 2014-04-02
WUXI JIALONG HEAT EXCHANGER
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Problems solved by technology
[0003] In the prior art, the flat tube is a flat structure with channels and uniform thickness, and it is easy for the welded fins to detach and shift during use.
The fins between flat tubes are usually corrugated, rectangular or n-shaped. Under certain space conditions, the heat transfer surface of the fins is limited, which affects the performance of the heat exchanger.
Method used
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[0020] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0021] combine Figure 1-3 , a parallel flow heat exchanger according to an embodiment of the present invention is explained as follows.
[0022] The heat exchanger in the embodiment of the present invention includes two headers 1, several flat tubes 2 with the same structure arranged between the two headers 1, and fins 3 arranged between adjacent flat tubes 2, the flat tubes The tube 2 is provided with several microchannels 4, and the microchannels 4 in the flat t...
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The invention discloses a parallel flow heat exchanger which comprises two collecting pipes, a plurality of flat pipes arranged between the two collecting pipes and identical in structure, and fins arranged between adjacent flat pipes. A micro channel in each flat pipe is communicated with the collecting pipes at two ends, the cross section of each flat pipe is in the shape of a first isosceles trapezoid, and one narrow ends of every two adjacent flat pipes are staggered to enable two opposite surfaces between the two adjacent flat pipes to be parallel. Each fin comprises a fin body, the cross section of each fin body is B-shaped, and a plurality of protrusions or pits are arranged on each fin body. By the technical scheme, disconnection and horizontal displacement of the fins between the flat pipes are well prevented, generated condensate water can be discharged along the outer walls of the trapezoidal flat pipes beneficially, heat exchange surfaces of the fins are increased, and performance of the heat exchanger is improved.
Description
technical field [0001] The invention relates to the field of heat exchangers, in particular to a parallel flow heat exchanger. Background technique [0002] Among the air-cooled heat exchangers, the parallel flow heat exchanger is a device that displays heat transfer between hot and cold fluids, and is widely used in HVAC and other fields. Usually, the basic structural form of parallel flow heat exchanger is: two headers parallel to each other, a number of parallel flat tubes with the same structure arranged between the headers, and brazed between adjacent flat tubes for exchange. Hot fins. The so-called fins are: metal sheets that are arranged on the surface of the heat exchanger that needs to be heated, have strong thermal conductivity, increase the heat exchange surface area of the heat exchanger, and improve heat exchange efficiency. The fins can be corrugated, or Shuttered. [0003] In the prior art, the flat tube is a flat structure with channels and uniform thick...
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IPC IPC(8): F25B39/00F28F1/02F28F1/12
Inventor 鲁文龙
Owner WUXI JIALONG HEAT EXCHANGER