Open-closed cooling tower with indirect heater for heating

Abstract

The invention discloses an open-closed cooling tower with an indirect heater for heating, and belongs to the technical field of cooling towers. Comprising a tower body, a water inlet pipe, a water collecting basin, at least two dividing wall type heat exchangers, at least two water distribution structures, an air draft structure and a finned tube type heater, the finned tube type heater and the air draft structure are sequentially arranged at the top of the tower body from top to bottom; the dividing wall type heat exchanger comprises an air inlet structure, a filler main body structure and an air outlet structure; the air inlet structure and the air outlet structure are each provided with a plurality of vertically-arranged wet area channels and a plurality of obliquely-arranged dry area channels. The wet area channels and the dry area channels are alternately arranged; and one end of the finned tube type heater is communicated with the input end of the water inlet pipe. The device can reduce generation of white fog, heat is effectively utilized to heat and discharge damp and hot saturated air to form unsaturated air, the water vapor content of the air is reduced, water loss is avoided, and resources are saved.

Description

technical field [0001] The invention relates to the technical field of cooling towers, in particular to an open-close cooling tower heated by an indirect heater. Background technique [0002] A traditional cooling tower generally includes a tower body, an exhaust device, a packing layer installed in the tower body, and a spray device. When in use, the hot water sprayed by the spraying device sprays into the packing layer from top to bottom, and the dry and cold air from the outside enters the packing from bottom to top, and the hot water and cold air exchange heat in the packing layer, so that the hot water The temperature is cooled down, while the air is heated and humidified, and the high-temperature and high-humidity air is discharged from the tower through the air outlet. However, in winter, due to the high water vapor content of the high-temperature and high-humidity air, it is cooled by the external cold air when it is discharged out of the tower, and condenses to pro...

AI Technical Summary

Problems solved by technology

[0004] (1) The water vapor content of the discharged air is relatively high, causing a large amount of water to be lost by evaporation;

[0005] (2) White mist is generated, causing the road surface around the cooling tower to be wet and slippery, which affects the normal inspection of the staff;

[0006] (3) can not effectively use heat

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