Vertical pipe evaporative type condensing heat exchanger with repeated water distribution function and heat exchange method thereof

Abstract

The invention discloses a vertical pipe evaporative type condensing heat exchanger with a repeated water distribution function and a heat exchange method thereof. A fluid distribution plate is arranged above vertical condensing heat exchange pipes, and a fluid collecting plate is arranged below the vertical condensing heat exchange pipes. The interior of the fluid distribution plate is divided into a first fluid distribution plate body and a second fluid distribution plate body by a partition plate. A filler layer is arranged on the leeward sides of the vertical condensing heat exchange pipesand above the fluid collecting plate, and the upper end of the filler layer extends to a micro-porous array area of the bottom of the first fluid distribution plate body. The bottom of the second fluid distribution plate body is provided with diversion water distribution holes allowing pipe bodies of the upper ends of the vertical condensing heat exchange pipes to extend into. A water distributionpipe is further provided with a branch pipeline, and nozzle arrays are distributed on the branch pipeline at intervals. Nozzles of the nozzle arrays spray water right opposite to the windward sides of the upper ends of the vertical condensing heat exchange pipes, and water drops sprayed by the nozzle arrays are overlapped on the surface of a fluid film to perform disturbance on the fluid film. The heat exchanger can greatly improve the condensing heat exchange performance of refrigerating fluid and the overall performance of a unit and is relatively easy to process and manufacture and low incost.

Description

technical field [0001] The invention relates to an evaporative condenser, in particular to a vertical tube evaporative condensation heat exchanger with multiple water distribution and a heat exchange method thereof. Background technique [0002] The main working principle of the evaporative condenser is to condense the refrigerant vapor in the heat exchange tube through the latent heat generated by the evaporation of cooling water sprayed outside the heat exchange tube. It combines the cooling and heat exchange process of the water cooling of the traditional water cooling unit and the cooling and heat exchange process of the air cooling cooling tower, which saves the heat exchange equipment in the intermediate process and reduces the initial investment of the equipment; it has high heat transfer efficiency, compact structure and small volume , less circulating water, and are increasingly widely used in power, chemical, food, petrochemical, refrigeration and other industries....

AI Technical Summary

Problems solved by technology

At this stage, the heat transfer effect of the evaporative condenser has been greatly improved by using various enhanced heat transfer tubes such as elliptical tubes and twisted tubes to replace the existing smooth round tubes, and using nanofluid technology; Based on tubes, it is difficult to make a breakthrough in technology to improve the heat transfer effect of evaporative condensers

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