Side-air-outlet vertical falling film type closed cooling tower

Abstract

The invention relates to the technical field of cooling tower cooling, in particular to a side-air-outlet vertical falling film type closed cooling tower which comprises a cooling tower body. The cooling tower body comprises a vertical heat exchanger, a spraying system, a fan and an air inlet grille. The spraying system is arranged above the vertical heat exchanger. The air inlet grille is arranged on one side face of the cooling tower body, the fan is arranged on the other side face of the cooling tower body, and first water spraying packing is arranged between the two side faces. Due to the fact that the vertical heat exchanger is vertically arranged, the probability that a dry point is formed on the windward side of a heat exchange pipe due to reverse flow of air and water in a closed cooling tower and then scaling occurs is reduced, and the flowing speed of a water film is increased by means of driving of air; and a turbulent flow state is easily formed on the surface of a vertical snakelike coil pipe, so that the heat exchange effect of water and a cooling medium in the vertical snakelike coil pipe is better.

Description

technical field [0001] The invention relates to the technical field of cooling tower cooling, in particular to a vertical falling film closed cooling tower with side outlet air. Background technique [0002] The cooling tower is a kind of high-efficiency cooling equipment, which mainly uses the latent heat of evaporation of water to remove the heat of the process fluid (usually circulating water), completes the cooling of the process fluid, and realizes the recycling of spray water at the same time. For closed cooling towers, the process fluid flows in the coil and conducts heat to the outside of the tube through the tube wall; at the same time, there is spray water outside the tube for spraying, forming a water film on the outer wall of the tube, under the action of air , Through spray evaporation, heat transfer and mass transfer heat exchange process occurs outside the tube, so as to realize heat transfer. The closed cooling tower can ensure that the water quality is not ...

AI Technical Summary

Problems solved by technology

[0007] 1. The closed cooling towers in the prior art are all horizontal coils, and most of them are arranged in the form of equilateral triangle forks. The air flow channel is small, the resistance is large, and the windward side is easy to foul, which affects the heat exchange effect

[0008] 2. When using a horizontal coil, when the spray water flow rate is large, the coil is easy to vibrate, and the collision noise is relatively large

[0009] 3. The air circulation in the closed cooling tower is small, and the performance of heat exchange is poor

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