An indirect cooling water-saving type counterflow cooling device using dry air energy cold recovery

The indirect cooling water-saving counter-flow cooling device, which recovers the cooling energy of dry air, uses a pre-cooling spray system and an air-water heat exchanger to reduce the temperature of circulating water, solving the problem of increased cooling water concentration and achieving water saving and efficient cooling.

CN122408486APending Publication Date: 2026-07-17XINJIANG GREEN EMISSARY AIR ENVIRONMENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XINJIANG GREEN EMISSARY AIR ENVIRONMENT TECH CO LTD
Filing Date
2026-02-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The increased concentration factor of industrial cooling circulating water leads to the precipitation of calcium and magnesium ions, which affects heat exchange efficiency. In addition, frequent sewage discharge and water replenishment result in high water consumption.

Method used

The indirect cooling and water-saving counter-current cooling device, which recovers the cold energy of dry air, reduces evaporation by using wastewater through a pre-cooling spray system. Combined with an air-water heat exchanger and an evaporative cooling device, it lowers the temperature of the circulating water, slows down water concentration, and reduces the frequency of wastewater discharge.

Benefits of technology

It effectively reduces the evaporation of circulating water, reduces the frequency of sewage discharge and water replenishment, and lowers the overall water consumption, while maintaining cooling efficiency, making it suitable for cooling needs in both dry and humid areas.

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Abstract

本申请涉及一种利用干空气能冷量回收的间冷节水型逆流冷却装置,包括塔体,塔体顶部开设排风口,安装排风机,塔体底部设置集水盘,还包括循环水进水管至循环水出水管的待冷却水换热系统,还包括集水盘至预冷喷淋管的预冷喷淋系统;待冷却水换热系统包括空气‑水换热器和蒸发制冷装置,循环水进水管与空气‑水换热器、蒸发制冷装置、循环水出水管依次导通;预冷喷淋系统包括预冷喷淋管,预冷喷淋管下方设置储水箱,储水箱与集水盘连通,预冷喷淋管与储水箱连通;还开设有预冷进风口、下部进风口。本申请经空气‑水换热器的气流温度更低,减缓喷淋用水的浓缩倍数的增加,降低排污频率,降低补水频率,最终实现降低循环耗水量的目的。
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