Evaporation and air cooling double-effect heat exchange device

Abstract

The invention is an evaporative air-cooled double-effect heat exchange device. A water catcher in the shell divides the inner space of the shell into a pre-cooling cavity and a main cooling cavity; wherein the shell of the pre-cooling cavity is provided with a circulating fan, which is used for pre-cooling. A pre-cooling heat exchanger is arranged in the cavity; an air inlet is arranged on the shell of the main cooling cavity, and a main cooling heat exchanger and a nozzle for spraying evaporative liquid to the main cooling heat exchanger are arranged in the main cooling cavity; The cold heat exchanger and the main cold heat exchanger are connected to each other by connecting pipes, the pre-cooling heat exchanger has a medium inflow pipe, and the main cold heat exchanger has a medium outflow pipe. The present invention combines the advantages of evaporative and air-cooled heat exchange devices, and on the premise of ensuring that the heat exchange effect reaches the level of the evaporative heat exchanger, the water consumption can be greatly saved, and the energy consumption of the system can be greatly reduced at the same time.

Description

technical field [0001] The invention relates to a cooling and condensing device, which is mainly used for lowering the temperature of a fluid medium. [0002] technical background [0003] Existing devices for cooling or condensing fluid media generally include water-cooled heat exchangers, air-cooled heat exchangers and evaporative heat exchangers. Among them, the water-cooled heat exchanger is a sensible heat transfer method, which requires a large amount of water as the cooling medium. This cooling method consumes a lot of water and energy, especially in water-scarce areas, and it is difficult to realize; It has a unique advantage in the lower case. Although it does not need water consumption, it consumes a lot of power and has a lot of noise. Especially in the case of high ambient temperature, it often has the disadvantage of low heat exchange efficiency due to space constraints; evaporation The heat exchanger is a form of latent heat exchange, which has good heat exchan...

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Problems solved by technology

Among them, the water-cooled heat exchanger is a sensible heat transfer method, which requires a large amount of water as the cooling medium. This cooling method consumes a lot of water and energy, especially in water-scarce areas, and it is difficult to realize; It has a unique advantage in the lower case. Although it does not need water consumption, it consumes a lot of power and has a lot of noise. Especially in the case of high ambient temperature, it often has the disadvantage of low heat exchange efficiency due to space constraints; evaporation The heat exchanger is a form of latent heat exchange, which has better heat exchange efficiency and less power consumption, especially when the ambient temperature is high. However, the main disadvantage of the products on the market today is the low heat transfer capacity and High water consumption

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