An adjustable tube-bundle heat exchanger, drying tower heat exchange adjustment system and method

Abstract

The invention discloses an adjustable tube-bundle heat exchanger, which comprises a casing and a tube bundle arranged in the casing along the axial direction, and the outside of the casing is respectively provided with a smoke inlet communicating with the input end of the tube bundle, The smoke outlet communicated with the output end of the tube bundle, and several partitions are arranged in the casing, the tube bundle passes through each partition, and each partition can slide along the axial direction of the casing , several partitions divide the interior of the housing into several heat exchange chambers, each of the two opposite sides of the heat exchange chambers is respectively provided with an air inlet and an air outlet, and the housing is also provided with a useful An adjustment device for driving each partition to slide along the axial direction of the housing. The invention also discloses a drying tower heat exchange adjustment system and method using the adjustable tube bundle heat exchanger. The invention adjusts the temperature of the output hot air by adjusting the size of each heat exchange chamber, and achieves the purpose of adjusting the temperature and humidity of the grain in each drying section of the drying tower.

Description

technical field [0001] The invention relates to the technical field of grain drying equipment, in particular to an adjustable tube bundle heat exchanger, a drying tower heat exchange regulating system and method. Background technique [0002] The drying tower is a kind of grain drying equipment. The drying tower generally includes multiple drying sections. Each drying section is respectively fed with hot air to dry the passing grain. The grain passing through each drying section needs to reach the design level. specified temperature and humidity parameters. However, due to the different humidity of the raw grains to be dried each time, in order to ensure that the grains can reach the set drying parameters, the heat of the hot air needs to be adjusted. Existing drying towers generally use tube-bundle heat exchangers to heat the air. The tube heat exchanger cannot adjust the heat exchange temperature, so at present, the method of adjusting the utilization rate of the hot air ...

AI Technical Summary

Problems solved by technology

However, due to the different humidity of the raw grains to be dried each time, in order to ensure that the grains can reach the set drying parameters, the heat of the hot air needs to be adjusted. Existing drying towers generally use tube-bundle heat exchangers to heat the air. The tube heat exchanger cannot adjust the heat exchange temperature, so at present, the method of adjusting the utilization rate of the hot air passing into each drying section at the end of the drying tower is mainly used to adjust the heat of the hot air. This method has low energy efficiency utilization rate and is not energy-saving. , unable to realize automatic real-time adjustment

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