Pre-cooling-evaporating integrated compressed air freeze drier

Abstract

The invention discloses a pre-cooling-evaporating integrated compressed air freeze drier. The freeze drier comprises an integrated pre-cooling evaporator, a condenser, a refrigeration compressor, a device for drying and filtering, a gas-liquid separator and auxiliary connecting pipelines thereof and the like, wherein the integrated pre-cooling evaporator is of a bushing type integrated structure,and comprises an evaporator and a pre-cooler; the evaporator is sleeved in the pre-cooler, and the evaporator and the pre-cooler form a whole; a compressed air inlet, a compressed air outlet and a water drainage port are formed on the shell of the pre-cooler; a compressed air outlet and a water drainage port are formed on the shell of the evaporator, and a compressed air inlet is formed on an endplate of the shell of the evaporator; the shell of the pre-cooler, two end plates connected to the shell of the pre-cooler and heat exchange tubes which are arranged in holes of the two end plates form a pre-cooling unit; and the shell of the evaporator, two end plates connected to the shell of the evaporator and a pipe-coil type evaporator form an evaporation unit. According to the pre-cooling-evaporating integrated compressed air freeze drier, the whole machine has a compact structure, the pipeline connection is easier, the machine space is saved, and the freeze drier cost is reduced. The freeze drier is economic and energy-saving.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, and relates to a precooling and evaporating integrated compressed air freeze dryer which integrates a precooler, an evaporator, and an air-water auxiliary separation and filtering device in the compressed air freeze dryer. Background technique [0002] With the advancement of science and technology and the development of industrial modernization, especially the rise of high-tech industries, the pollution of compressed air (gas) and its purification technology have attracted the attention of gas-using departments and manufacturers in various countries. Various purification devices with oil removal, water removal, dust removal, and odor removal are constantly being developed, and the market demand is increasing day by day. The development of compressed air purification technology not only provides clean and reliable air sources for emerging high-tech industries and traditional industrial tra...

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Problems solved by technology

[0004] At present, the evaporator of most cold dryers is separated from the pre-cooler, which not only increases the difficulty of pipe connection and installation in the middle, but also makes the overall structure of the cold dryer not compact. At the same time, it also makes the compressed air pass through The water after pre-cooling cannot be effectively separated, which will increase the gas-water separation load of the evaporator and the passive rise of the dew point temperature. It is very necessary to remove the attached water vapor in the air, stabilize and reduce the method and device of compressed air dew point

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