Wind direction rotary type surface cooler structure for air conditioning refrigeration system

Abstract

The invention provides a wind direction rotary type surface cooler structure for an air conditioning refrigeration system. The structure comprises a surface cooler with a plate shape, an air guide pipe shell, wherein the surface cooler comprises a front face and a back face which are parallel to each other, and a gap formed between the front surface and the back surface is a heat exchange air channel; the air guide pipe shell comprises an air inlet, an air outlet, a bent air guide pipe and a surface cooler accommodating cavity, and the surface cooler is arranged in a surface cooler containingcavity in the air guide pipe shell; the surface cooler is connected with the air guide pipe shell, and a closed channel with the air inlet and the air outlet is formed after the surface cooler is connected with the air guide pipe shell; a heat exchange air duct of the surface cooler is divided into an air inlet section, an air return section and an air outlet section; an air flow sequentially passes through the air inlet, the air inlet section, the bent air guide pipe, the air return section, the outlet section and the air outlet; compared with a traditional heat dissipation fin and a pipe penetrating type combined structure, the air flow passes through at least two times and many times of the repeated step-by-step heat absorption of the rotating air, the heat exchange efficiency is improved, the occupied space area is reduced, and the positions of air ports are flexible.

Description

technical field [0001] The invention relates to the technical field of air-conditioning equipment, in particular to a surface cooler structure for household, vehicle, and special environment cooling and heat exchange equipment. Background technique [0002] The surface cooler generally refers to the finned heat exchanger used for air cooling in the air conditioning unit. At present, the general air conditioner surface cooler is generally a combined structure of heat dissipation fins and through-tubes. The conventional surface cooler mainly includes single-pass and double-pass There are two forms; the cold and heat exchange surface cooler of this structure has the problem of low heat exchange efficiency, such as the double-pass refrigeration surface cooler, after the air is blown by the fan, due to the short wind distance, the refrigerant flowing in the pipe A considerable part does not perform sufficient heat exchange, resulting in low heat exchange efficiency, energy waste,...

AI Technical Summary

Problems solved by technology

[0002] The surface cooler generally refers to the finned heat exchanger used for air cooling in the air conditioning unit. At present, the general air conditioner surface cooler is generally a combined structure of heat dissipation fins and through-tubes. The conventional surface cooler mainly includes single-pass and double-pass There are two forms; the cold and heat exchange surface cooler of this structure has the problem of low heat exchange efficiency, such as the double-pass refrigeration surface cooler, after the air is blown by the fan, due to the short wind distance, the refrigerant flowing in the pipe A considerable part does not perform sufficient heat exchange, resulting in low heat exchange efficiency, energy waste, and indirectly increased energy consumption. In order to solve the problem of low efficiency, most of them adopt the method of lengthening the length of the board surface and the air supply volume. This method The problem is also very big, especially for automobile air conditioners, which must consider the problems of space occupation and power consumption; at the same time, the section of the air supply duct of the fan is smaller than that of the surface cooler, even if a cover is installed between the air supply port and the surface cooler When the air flow reaches the surface cooler, the wind speed becomes smaller and the air volume is uneven. The air volume is concentrated at the direct blowing port or the direct suction port. In the refrigeration system, it is difficult to lower the temperature to a lower temperature after one heat exchange of the surface cooler; the structure of the surface cooler with direct blowing or direct suction structure has high requirements on the position of the air outlet, and the design of the fan and pipeline is not good. In addition, the long-plate surface cooler has a large duty cycle. In order to improve the heat exchange efficiency, it is even necessary to increase the thickness and the amount of pipe penetration, which can no longer meet the application requirements of the vehicle refrigeration system structure.

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