Evaporating heat exchanger with moistened surface

Abstract

The present invention relates to one kind of evaporating heat exchanger for air conditioner and other refrigerating equipment and aims at solving the problems of low heat efficiency and short servicelife of heat exchanger. The present invention includes blower, water sprayer, heat dissipating metal sheet, metal pipe passed through and fixed to the heat dissipating sheet, and non-woven cloth on the outer surface of the heat dissipating sheet. It has the advantages of high heat efficiency, large evaporation area, low power consumption, etc. and can make air conditioner and other refrigerating system run at low-pressure difference and low power consumption of compressor. The surface of the heat exchanger can maintain moisture for long time and the water sprayer may run intermittently.

Description

technical field [0001] The invention relates to a heat exchanger for air conditioners and other refrigeration equipment, in particular to a surface wetting evaporative heat exchanger. technical background [0002] There are three types of air-cooled, water-cooled, and water-evaporated heat exchangers used in existing air conditioners as condensers. The air-cooled heat exchanger is easy to install and use, but it works in a state of high temperature and high temperature difference higher than the ambient temperature. The high temperature and high temperature difference correspond to high pressure and high pressure difference. source of electricity. The cooling effect of water-cooled condenser is better, but it is limited in some areas due to high water consumption. Even if it is applied to ground energy air conditioning, it will also be restricted by the fact that groundwater cannot be exploited arbitrarily. The use of cooling towers saves water but increases equipment costs...

AI Technical Summary

Problems solved by technology

[0003] The existing evaporative heat exchanger consists of a rectangular metal heat sink covered with hydrophilic non-woven fabric and a flat copper tube in the middle, which effectively increases the evaporation area of ​​water, thereby improving the heat transfer efficiency of the condenser , reduces the condensation temperature, reduces the power consumption, and further reduces the volume of the air conditioner heat exchanger, but because the hydrophilic non-woven fabric is installed between the cooling fins and the copper tubes, the heat transfer between the copper tubes and the fins The efficiency is reduced, and the increased evaporation area has not been fully utilized. In addition, this structure has a large flow resistance and is easy to scale and accumulate dust. It is difficult to maintain and has a short service life.

The heat exchanger produced with rectangular fins needs beading and tie rods to keep the heat sink from spreading out and contact the copper tube. In order to prevent the heat sink from being deformed by compression, the J-tube heat exchanger is also equipped with pads at the left and right ends. , the tightness of the tie rod directly affects the quality and appearance of the heat exchanger, the structure is complex but still unstable

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