Air-conditioning and cooling tower group that can reduce the back-mixing rate of hot and humid air

Abstract

The invention discloses an air conditioner cooling tower group capable of reducing the damp and hot air back-mixing ratio. The air conditioner cooling tower group includes a plurality of cooling towers. The top of each cooling tower is provided with a wind tunnel. The plurality of the cooling towers are arranged in the environmental wind flowing direction and are arranged in more than two rows. Heights of the wind tunnels are gradually reduced in the environmental wind flowing direction. By means of the air conditioner cooling tower group capable of reducing damp and hot air back-mixing ratio, the ventilating resistance can be reduced and damp and hot air discharged from the cooling towers can be discharged to upper air easily.

Description

Technical field [0001] The invention mainly relates to the field of heating, ventilation and air conditioning, and in particular to an air conditioning cooling tower group capable of reducing the backmixing rate of humid and hot air. Background technique [0002] The cooling tower is an important part of the HVAC system. Its function is to exchange the circulating water carrying the waste heat with the air in the tower, transfer the heat of the water to the air and disperse it into the atmosphere, and cool the circulating water. The performance of the cooling tower directly affects the cooling and heating effect of the air conditioning system. [0003] Factors affecting the operating performance of cooling towers include air wet bulb temperature, air flow, water volume, cooling tower layout, etc. The location and method of cooling tower layout are one of the key factors that affect the performance of cooling towers. Once the cooling tower is arranged unreasonably, the thermal plum...

AI Technical Summary

Problems solved by technology

from figure 2 It can be seen that when there is no ambient wind, a part of the hot and humid air discharged from the outlet of the cooling tower flows back to the cooling tower 1, that is, a part of the air flow is discharged to the outside through the cooling tower fan, and a part of the air flows under the action of its own gravity and the cooling tower fan draft. From the edge area of ​​the cooling tower 1, it flows back to the inside of the cooling tower 1, resulting in a decrease in the cooling efficiency of the cooling tower 1

from image 3 It can be seen that when there is ambient wind, along the direction of ambient wind (such as image 3 The hot and humid air in the first row of cooling tower 1 (shown by the middle horizontal arrow) is mostly discharged to the outside through the cooling tower fan under the joint action of ambient wind, its own gravity and cooling tower fan suction, and part of it is returned to the first row for cooling The right louver air inlet of tower 1, and part of it flows back to the left louver air inlet of the second row of cooling tower 1; the hot and humid air of the second row of cooling tower 1 is under the joint action of ambient wind, its own gravity and cooling tower fan draft Down, the flow returns to the right louver inlet of the second row of cooling towers 1, causing the cooling efficiency of the two rows of cooling towers 1 to decrease

[0006] Summarizing the above, it can be seen that the existing cooling tower group layout will cause a series of problems: 1. The hot and humid air generated by the heat exchange between air and circulating water cannot be discharged well, and the hot and humid air has a high back-mixing rate; 2. Cooling towers Group operation interferes with each other, cooling tower air inlet and exhaust short circuit, exhaust air is not smooth; 3, cooling tower group operation efficiency is low

This directly affects the cooling and heating effect of the entire air conditioning system.

Images