Evaporative cooling heat exchanger

Abstract

The invention discloses an evaporative cooling heat exchanger which comprises an inner cylinder, an outer cylinder and a driving motor. The inner cylinder is arranged in the outer cylinder, and a first heat exchange channel is formed between the outer cylinder and the inner cylinder; the driving motor is connected with the inner cylinder through a rotating shaft penetrating through the bottom of the outer cylinder; the side surface of the inner barrel is provided with a plurality of through holes, the top surface of the inner barrel is provided with a water inlet pipe, and the inner barrel isinternally provided with blades crossed with the water flow direction; and the side surface of the outer cylinder is provided with an air inlet, and the top surface of the outer cylinder is provided with an air outlet. The driving motor is used for controlling rotation, the blades are arranged in the inner cylinder, water drops in the inner cylinder are collided to generate water mist, the water mist generated by the collision of the blades can enter the first heat exchange channel through the through holes and collide with the inner wall of the outer cylinder, new water mist is generated in the first heat exchange channel, and heat and moisture exchange occurs in air flowing through the first heat exchange channel. The air, water mist and water drops rotationally flow in the evaporative cooling heat exchanger, so that the gas-liquid contact area and the heat-moisture exchange efficiency are increased, and the cooling efficiency is effectively improved.

Description

technical field [0001] The invention relates to the field of refrigeration and air conditioning, in particular to an evaporative cooling heat exchanger. Background technique [0002] Evaporative cooling technology is a technology that uses water evaporation to absorb heat and cool down. Water has the ability to evaporate in the air. In the absence of other heat sources, the heat and moisture exchange process between water and air is that the air transfers sensible heat to water, which makes the temperature of the air drop; and due to the evaporation of water, the moisture content of the air Not only does the amount increase, but the water vapor entering the air brings back some latent heat of vaporization; when these two heats are equal, the water temperature reaches the wet bulb temperature of the air. As long as the air is not saturated, the effect of cooling can be obtained by using circulating water directly or spraying air through the packing layer. When conditions pe...

AI Technical Summary

Problems solved by technology

Among them, the packing type direct evaporative cooling has low efficiency and large volume

Spray evaporative cooling has high requirements on water quality, is prone to fouling and clogging, and has low efficiency

Images