Closed dehumidifying type tobacco curing house and tobacco curing method

Abstract

The invention discloses a closed dehumidifying type tobacco curing house and a tobacco curing method. The closed dehumidifying type tobacco curing house comprises a tobacco curing house, wherein an air heater is arranged in the tobacco curing house; an air cooler is arranged outside the tobacco curing house; a condensation board is arranged on the side wall of the tobacco curing house; and a water collection tank is arranged below the condensation board. The condensation board consists of an indoor-side moist heat condensation surface and an outdoor-side cold air radiating surface, wherein the indoor-side moist heat condensation surface and the outdoor-side cold air radiating surface are both provided with multiple separation plates and heat exchange fins. The closed dehumidifying type tobacco curing house disclosed by the invention does not directly perform convectional exchange between damp and hot air in the tobacco curing house and the outdoor cold air, thus bringing about little heat loss; and meanwhile, heat energy is released in the process of the damp and hot gas changed into droplets so as to save energy and reduce the curing cost. As the damp and hot air in the curing house does not need to be discharged abundantly, the more flavor generated by the tobacco leaf in the curing process is better attached to the tobacco leaf, thereby not only increasing the net weight oftobacco leaf and increasing the income of tobacco growers, but also ensuring the quality of the cured natural tobacco leaf.

Description

technical field [0001] The invention relates to a closed moisture-expelling flue-cured tobacco room and a method for flue-curing tobacco, belonging to the field of flue-cured tobacco. Background technique [0002] After the harvested tobacco leaves are put into the flue-cured room, because the leaves are separated from the parent body, their respiration continues until they lose their life activities. During this process: by manually adjusting the temperature and humidity in the flue-cured room, a series of physiological and biochemical reactions occur inside the leaves, and the contents are continuously decomposed, transformed, and synthesized, thereby completing the modulation of the tobacco leaves. Tobacco preparation is to hang or loosely pick the fresh tobacco leaves in the flue-cured room. By manually adjusting the temperature and humidity around the tobacco leaves, the hot air in the flue-cured area of ​​the flue-cured room moves down or up, and exchanges moisture and...

AI Technical Summary

Problems solved by technology

The conventional dehumidification method actively extracts cold outdoor air, forms a pressure difference in the flue-cured room, and then discharges hot and humid air, forming a convective exchange between the hot and humid air in the flue-cured room and the outdoor air, which not only loses a lot of heat, but also causes tobacco leaf aroma. and because most of the flue-cured tobacco rooms are built in semi-alpine areas, there are many outdoor rainy and foggy days. At this time, inhaling outdoor cold and humid air cannot effectively dehumidify, and may also have negative effects that are not conducive to tobacco leaf curing

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