Novel evaporation type concurrent flow heat exchanger and air conditioner using same

Abstract

The invention discloses a novel evaporation type concurrent flow heat exchanger and an air conditioner using same. The heat exchanger comprises an upper collecting pipe and a lower collecting pipe which are arranged in parallel and a plurality of flat pipes which are arranged between the two collecting pipes and connected and communicated with the collecting pipes. The flat pipes are microchannel multihole flat pipes and the upper collecting pipe, the lower collecting pipe and the flat pipes are in plugging combination to form a whole. The air conditioner comprises an evaporimeter, a compressor, a fan system, an air pipe and the evaporation type concurrent flow heat exchanger, wherein the evaporimeter, the compressor and the evaporation type concurrent flow heat exchanger form a refrigerant loop through pipe link. Compared with the prior art, the invention has the following beneficial effects: 1. the heat exchanger features simple, compact and reasonable structure, good heat exchange effect, high heat exchange efficiency, practicality and reliability as well as low manufacturing cost; and 2. the air conditioner can fast realize refrigeration, improve heat exchange efficiency and effectively solve the question of discharging condensate water of the air conditioner.

Description

technical field [0001] The invention relates to a heat exchanger and an air conditioner, belonging to the technical field of air conditioner heat exchange equipment, in particular to a novel evaporative parallel flow heat exchanger and an air conditioner using the heat exchanger. Background technique [0002] At present, the known condensers of household air conditioners are tube-fin heat exchangers, which include aluminum heat exchange fins and circular copper tubes, and the circular copper tubes and aluminum fins are in contact with each other through mechanical tube expansion. The transitional connecting pipe is welded to form a closed space, and then connected to the refrigeration system through the inlet and outlet pipes. The fan of the refrigeration system makes the air flow through the heat exchanger, taking away the heat of the high-temperature refrigeration steam, so as to achieve the heat exchange effect. However, after the traditional tube-fin heat exchanger has b...

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Problems solved by technology

However, after the traditional tube-fin heat exchanger has been used for a period of time, due to the defects of the mechanical expansion tube, the contact thermal resistance between the fin and the copper tube will increase exponentially, and the heat exchange capacity will be significantly reduced; on the other hand, the traditional tube-fin heat exchanger The heat exchanger uses circular copper tubes as the basic channel of the refrigerant. With the continuous rise of copper prices in recent years, the cost of the heat exchanger remains high; at the same time, the circular copper tubes of the traditional tube-fin heat exchanger The hydraulic diameter is large, which is not suitable for the promotion of new refrigerants; therefore, it is necessary to make technical improvements to existing technologies

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