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    • 4. 发明授权
    • Cross flow evaporative coil fluid cooling apparatus and method of cooling
    • 横流蒸发盘管流体冷却装置及冷却方法
    • US4683101A
    • 1987-07-28
    • US813489
    • 1985-12-26
    • Robert E. Cates
    • Robert E. Cates
    • F28C1/04F28C1/14B01F3/04
    • F28C1/14F28D5/02
    • A closed circuit evaporative fluid cooler/evaporative condenser utilizing a cross flow water-air fluid flow relationship is provided. An evaporative liquid recirculating system includes a liquid distribution spray assembly mounted above a bundle of fill sheets. A closed circuit fluid cooling/condensing heat exchanger is supported below the bundle of fill sheets. Each heat exchanger comprises a plurality of parallel coil circuits or modules, wherein the inlet of each coil circuit is at a higher elevation adjacent the air outlet side of the heat exchanger, and the fluid outlet manifold of each coil circuit is at the lowest elevation adjacent the air inlet side of the heat exchanger. This arrangement assures the coolest liquid falling from the fill sheet assembly contacts the coil assembly containing the coolest fluid and that the coolest air entering the air inlet contacts the coil assembly portion containing the coolest fluid. Each coil assembly comprises a plurality of parallel individual coil circuits each having downwardly sloped straight runs connected by return bends to assure the complete pass through and drainage of the fluid therein.
    • 提供了一种利用横流水 - 空气流体流动关系的闭路蒸发流体冷却器/蒸发冷凝器。 蒸发液体循环系统包括安装在一束填充片材上的液体分配喷雾组件。 闭路流体冷却/冷凝热交换器被支撑在填充板束下面。 每个热交换器包括多个平行的线圈回路或模块,其中每个线圈回路的入口处于与热交换器的空气出口侧相邻的较高高度处,并且每个线圈回路的流体出口歧管处于相邻的最低高度 热交换器的空气入口侧。 这种布置确保从填充片组件落下的最冷的液体接触包含最冷流体的线圈组件,并且进入空气入口的最冷空气接触包含最冷流体的线圈组件部分。 每个线圈组件包括多个平行的单独的线圈回路,每个线圈回路具有通过返回弯曲连接的向下倾斜的直线,以确保其中的流体完全通过和排出。
    • 10. 发明授权
    • Method for indirect evaporative cooling of upflowing fluid by contact
with downflowing water from overlying evaporative cooling section
    • US4112027A
    • 1978-09-05
    • US653667
    • 1976-01-30
    • Robert E. Cates
    • Robert E. Cates
    • F28C1/14F28D5/02B01F3/04
    • F28C1/14F28D5/02Y10S165/90Y10S261/11Y10S261/77
    • A high efficiency, induced draft, combination counterflow-crossflow fluid cooling apparatus and method is provided which gives unexpectedly enhanced cooling of hot fluid by causing the fluid to pass upwardly through a series of serpentine heat exchange conduits in primarily countercurrent, indirect sensible heat exchange relationship with external cooling water gravitating from an overlying evaporative water cooling section. Crossflowing air currents are pulled through the apparatus to evaporatively cool the water not only in the upper cooling section but also in the sensible heat exchange area as well. Countercurrent flow of coolant water and fluid to be collected ensures that the coldest water and coldest fluid are in thermal interchange during the final stages of fluid cooling at the upper ends of the heat exchange conduits, so that the fluid temperature can approach that of the cold water as opposed to approaching the temperature of heated water found adjacent the lower ends of the conduits, which is conventional in cocurrent fluid units of this type. The fluid conduit system is preferably arranged for causing increased fluid residence time, and thereby greatest temperature difference and longer heat exchange between the fluid and coolant water adjacent the air inlet of the apparatus where air and coolant water temperatures are lowest relative to the fluid to be cooled, so that an ideal countercurrent flow relationship is obtained and maximum heat transfer is assured. An underlying water collection basin is also employed in the apparatus which is constructed to permit collection of cooling water to a level above that of the lowermost portions of the hot fluid conduits, in order to allow the hot fluid traveling through the conduits to heat the collected water to prevent freezing thereof during wintertime operations when the internal water pump is shut down causing the stoppage of all evaporative cooling and hence a raising of the lower water basin level.