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The boiling solution passes through the heating surface multiple times in the heating chamber, such as a central circulation tube type, a hanging basket type, an external heating type, a column type, and a forced circulation type. 2 one-way type. The processing capacity of the small-sized cold dryer is 0.3~3Nm/min. The air cooler is generally used in this type of dryer. The evaporator can be used in the tube type or the coil type. The power consumption of the whole machine is below 1kW. The configuration is simple. The boiling solution passes through the heating surface once in the heating chamber, and does not circulate, that is, discharges the concentrated liquid, such as a rising film type, a falling film type, a stirring film type, and a centrifugal film type. 3 direct contact type. The heating medium is in direct contact with the solution for heat transfer, such as a submerged combustion evaporator.
The dryer can provide most industrial users with compressed air with the required dryness under the condition of low energy consumption. Before this, no matter the actual requirements of the process water content, only the adsorption drying device can be used. Drying with water removal results in increased operating costs for the process.
Large-scale dryers can handle large-scale dryers with airflows above 80 Nm/min. They are characterized by the widespread use of water-coolers. In order to enhance the heat dissipation of the whole machine, the body is more open. The refrigeration compressor power is above 15kW. Generally, the semi-hermetic refrigeration compressor with automatic unloading device or multiple full-sealed compressors are operated in parallel to adapt to the load change. The electrical control and refrigeration system are fully protected. Ouliya Microcomputer Large-scale dryers for control panels can also be air-cooled.
Large-scale dryers are characterized by the widespread use of water coolers
The state change of compressed air causes the internal environment to be in a state of wet saturation. A considerable amount of solid particles mixed in the air become a "condensation tube" that can be utilized by water vapor condensation, which is equivalent to an industrial process. "wet dust removal", therefore, it can be considered that the dryer has the "self-cleaning effect" that the adsorption dryer does not have. The cold dryer can condense some of the oil vapor-contaminated impurities in the air while condensing and removing water. The oil particles having a larger particle size are removed, so that the pretreatment of the incoming air is relatively low.