Packing material combination plate element unsaturated evaporative radiator

Abstract

The invention provides a packing material combination plate element unsaturated evaporative radiator, which comprises a shell case, a fan, heat exchange elements, a spraying system and the like, wherein the lateral face of the case is provided with an air inlet and the top is provided with an air outlet, the air inlet of the case is provided with the heat exchange element, the spraying device is arranged above the heat exchange elements, the air outlet is provide with a draught fan, and a water baffle is arranged between the draught fan and the heat exchange elements. The heat exchange elements are formed by overlapping at least two groups of combination plate elements up and down, a polycarbonate asia ethyl ester packing material is filled between heat exchange plate pipes, the heat exchange plate pipes of two groups of up and down adjacent heat exchange elements are arranged in a staggering mode, the upper end of each heat exchange plate pipe is passed into a medium inlet pipe and is connected with a medium inlet header pipe, and the lower end of each heat exchange plate pipe is passed into a medium outlet pipe and is connected with a medium outlet header pipe; and water films are formed on the surfaces of the heat exchange elements under the action of the gravity of spray water, and the heat transfer is strengthened through water film evaporation. The packing material combination plate element unsaturated evaporative radiator achieves the crossed cross-flow type heat exchange between the water films and the air, and has high heat transfer efficiency, small wind resistance and perfect energy-saving and water-saving effect.

Description

technical field [0001] The invention relates to an unsaturated evaporative radiator, which adopts polyethylene carbonate (hereinafter referred to as PPEC) filler combined plate element as a heat exchange element, realizes enhanced heat transfer by accelerating water film evaporation, and can replace the traditional tubular evaporative heat dissipation device. Background technique [0002] The traditional unsaturated evaporative radiator is a tube structure, which adopts the method of fabric film against the wind. The water outside the tube sprays down from the top of the tube bundle, forms a layer of water film on the surface of the tube, and then drips to the next layer of tube row; Blowing in from the bottom of the tube bundle, skimming the tube bundle and transferring heat and mass with the water film on the tube surface to form unsaturated evaporation. Unsaturated evaporation mainly occurs at the contact interface between the water film on the surface of the heat transf...

AI Technical Summary

Problems solved by technology

Unsaturated evaporation mainly occurs at the contact interface between the water film on the surface of the heat transfer tube wall and the air. This process is a discontinuous falling film process. It is difficult for the water film to cover the tube surface completely and uniformly, so the maximum unsaturated evaporation cannot be achieved; In places where the water film cannot be covered, due to the existence of evaporation, it is easy to form a "dry spot" phenomenon, which will form scales for a long time, which will not only reduce the heat transfer efficiency, but also cause corrosion damage to the pipe wall; Cloth film, the impact of rising air flow and falling water droplets will lose a lot of energy, increase air pressure drop and reduce wind speed, which is not good for unsaturated evaporative heat transfer

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