Air cooler suitable for high-humidity and high-dust environment and design method thereof

Abstract

The invention discloses an air cooler suitable for the high-humidity and high-dust environment. The air cooler comprises a shell and a heat exchanger assembly, the heat exchanger assembly comprises aset of oval smooth pipe arrays which are vertically arranged in sequence, a set of liquid supply pipes are arranged on each of the two sides of each smooth pipe array, liquid distributors are arrangedat the tail ends of the liquid supply pipes, a plurality of liquid distribution pipes are arranged in each liquid distributor, the liquid supply pipes are communicated with the oval smooth pipes through the liquid distribution pipes, and the coolant flow direction is perpendicular to the air flow direction. According to the air cooler, the oval smooth pipes with the specific sizes are adopted toform the heat exchanger assembly with a specific array, a specific flowing heat exchange mode of air and a coolant is matched, so that the defects of an existing cooler are effectively overcome, blockage is not likely to occur, dirt is convenient to wash after long-term operation, and a compressor can normally return oil and is stable in operation; the heat exchange effect is good, and the overallstructure is compact; air resistance is small, and energy consumption of a fan is low; and the air cooler is suitable for deep well working roadways of high-humidity and high-dust coal mines, gold ores, copper ores and the like.

Description

technical field [0001] The invention belongs to the technical field of refrigeration equipment, and in particular relates to an air cooler suitable for high-humidity and high-dust environments and a design method thereof. Background technique [0002] The deep working roadways of coal mines, gold mines and copper mines are generally high-humidity and high-dust environments. In order to ensure the work efficiency and health of workers, it is necessary to use refrigeration devices to cool down the air in these environments in some cases. In this type of refrigerating devices, a heat exchanger between Freon and high-humidity and high-dust air is involved. [0003] The heat exchanger between Freon and cooled air in conventional air conditioners is in the form of finned tubes with a fin spacing of 1-2mm. When this type of device is used for cooling the high-humidity and high-dust air of the present invention, the fins are easily blocked, thereby affecting the heat exchange effec...

AI Technical Summary

Problems solved by technology

The bare tube heat exchanger will greatly reduce the amount of heat exchange per unit volume of the heat exchanger, which will make the overall structure of the heat exchanger too large, increase the number of heat exchange tubes used, and increase the cost of equipment

At the same time, the light tube heat exchanger is used. Under the limited space permit and the available refrigerant liquid distributor permit, the design selection of the number of refrigerant passages is often difficult

When the number of refrigerant passages is selected to be small, each passage is very long, and the pressure loss of the refrigerant is large; when the number of refrigerant passages is selected to be large, each passage can be shortened, but the flow rate of the refrigerant is reduced, and the compressor cannot Risk of smooth oil return

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