A water-saving switching cooling tower

Abstract

The invention discloses a water-saving switching type cooling tower. The water-saving switching type cooling tower comprises a liquid draining port, an air inlet, a multi-channel filler, an air-liquidswitching mechanism, a liquid distributor, a foam remover, a liquid distributing fin pipe, a liquid inlet and an air outlet which are sequentially arranged in the tower, wherein the air-liquid switching mechanism comprises a plurality of air-liquid switching units; each air-liquid switching unit comprises two fixed side plates which are arranged in parallel; a movable cover plate is hinged with the upper end of one fixed side plate, and an air charging seam is formed in another fixed side plate; downwards inclined flow guide blades are arranged on the air charging seams; the two fixed side plates are correspondingly in sealing connection with the top part of the multi-channel filler through supporting parts; at least one channel is positioned between the two fixed side plates, and at least one channel is positioned between two adjacent air-liquid switching units; and the movable cover plate of each air-liquid switching unit is linked with an electric performing mechanism. According tothe water-saving switching type cooling tower, the heat exchanging modes can be switched based on the season and the environmental temperature change, so that the running energy consumption of the cooling tower is reduced while water is saved and white smoke is removed.

Description

technical field [0001] The invention relates to the field of resources and environment, in particular to a water-saving switching cooling tower. Background technique [0002] In the production process of many industrial products, there are many thermal processing processes or thermal reactions. Products with these heats cannot enter the next process or be stored. In order to obtain the produced products, they need to be condensed or cooled with water. Water is here It is heated during the process and loses its reuse function. In order to prevent the excessive water cost and environmental pollution caused by the discharge of industrial hot water, it is necessary to cool down the industrial hot water and realize the recycling of water resources. [0003] The cooling tower is a device that uses ambient air as a circulating cold source to absorb and discharge heat from high-temperature industrial circulating water to the atmosphere to reduce the temperature of circulating water...

AI Technical Summary

Problems solved by technology

[0006] At present, the existing mechanical cooling towers have the following difficulties in the operation process: (1) High energy consumption in operation: the existing cooling towers use ambient air as the cooling source, the ambient air temperature is high in summer, the temperature difference between gas and liquid is small, and the heat transfer efficiency is relatively low. Low, requires a large volume of ambient air to exchange heat with hot water

In order to ensure the normal operation of industrial production, cooling towers are mostly designed in summer heat exchange mode, resulting in excessive cooling tower allowance in winter and high energy consumption in operation; (2) poor water saving effect: cooling towers using enthalpy difference heat exchange mode During the operation process, the heat taken away by industrial circulating water mainly includes three parts: the heat absorbed by the ambient air, the latent heat of evaporation and gasification of circulating water, and the radiation heat dissipation of tower body, and the latent heat of evaporation and gasification of circulating water is the main part, resulting in the heat exchange process A large amount of water is evaporated and lost; (3) Severe visual pollution: In winter, when the temperature is low, because the cooling tower adopts the enthalpy difference heat exchange method to condense, a large amount of water vapor evaporates and enters the air and is discharged with the air, resulting in relatively low relative humidity of the outlet air. High, and the temperature of the exhaust air is also high. After this air is discharged into the atmosphere with a lower temperature, it quickly exchanges heat and moisture with the low-temperature ambient air. The exhaust gas becomes supersaturated due to cooling, and the mechanical cooling tower emits water. Vapor condenses rapidly and produces a large amount of white smoke

In the environment where the atmosphere is relatively static in winter, this kind of white smoke will cause the humidity of the atmosphere in the nearby area to increase significantly, further increase the stability of the air, and affect the diffusion of pollutants in the air.

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