Method of horizontally multistage indirect evaporation cooling refrigeration

Abstract

The invention discloses a method of horizontally multistage indirect evaporation cooling refrigeration and belongs to the technical field of energy source. A fundamental unit is arranged for realizing multistage indirect evaporation cooling refrigeration by using an n-stage direct evaporation cooling refrigeration module and an n-stage surface cooler, wherein the direct evaporation cooling refrigeration module is correspondingly connected the surface cooler one by one. The water prepared by the direct evaporation cooling refrigeration module is input to an air outlet side of the corresponding surface cooler and is sprayed from the top of the direct evaporation cooling refrigeration module so as to form a whole countercurrent between an air flow direction of the surface cooler and an air flow direction of the direct evaporation cooling refrigeration module and finish the evaporation cooling refrigeration. The cooled water is independently recycled in the direct evaporation cooling refrigeration module and the corresponding surface cooler in order to prepare cold air and / or cold water. The method of the invention uses the outside natural dry air to cool without electric energy, so, compared with the traditional cooling method, the method of the invention can save 40% to 70% of energy. The method uses no CFCs and has no pollution to atmosphere so the application prospect is wide.

Description

technical field [0001] The invention belongs to the field of energy technology, and in particular relates to a horizontal multi-stage indirect evaporative cooling refrigeration method of the evaporative cooling type cooling technology. Background technique [0002] According to different cooling media, evaporative cooling technology is mainly divided into three categories: one is the way of preparing cold air; the other is the way of preparing cold water; the third is the way of preparing cold water and cold air at the same time. [0003] The way of using evaporative cooling to prepare cold air was developed earlier. With the improvement of processes and processes, according to the differences in climate conditions in different regions, the methods of evaporative cooling to prepare cold air widely exist at present, mainly including single-stage direct evaporative coolers, single-stage Indirect evaporative coolers, multi-stage indirect evaporative coolers, and evaporative coo...

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Problems solved by technology

However, the module for preparing cold water in this method still adopts a single-stage method. When the temperature difference between the cold water side supply and return water is high, in the cross-flow single-stage cold water preparation module, due to the uneven temperature of the outlet water at different positions of the module, Larger mixing water loss; and due to the overall cross flow, the requirements for the air-to-water ratio between air and water are inconsistent to ensure the heat and mass transfer performance between air-water and the efficiency of cooling water; these problems often become The key to whether the equipment applying this method can efficiently realize the preparation cooling capacity under actual working conditions

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