Special stepped cooling air conditioning unit for grain surfaces

Abstract

The invention discloses a special stepped cooling air conditioning unit for grain surfaces. The special stepped cooling air conditioning unit comprises a digital scroll compressor, an efficient finned condenser, a vertical liquid storage tank, a replaceable drying filter, a moisture liquid indicator, a stop valve, a first electromagnetic valve, a fluorine thermal expansion valve, a digital display temperature and humidity sensor, a control box, an ultra-silent axial flow fan, a second electromagnetic valve, a connecting pipe, a pressure controller and an air treatment mechanism, wherein the digital scroll compressor is sequentially connected with the efficient finned condenser, the vertical liquid storage tank, the replaceable drying filter, the moisture liquid indicator, the stop valve, the first electromagnetic valve, the fluorine thermostatic expansion valve and the air treatment mechanism through the connecting pipe. The special stepped cooling air conditioning unit is simple in structure and more complete in function; and air in a granary is cooled in a stepped mode, grain deterioration caused by condensation of high-temperature grains when supercooled air is fed into the granary is prevented, the humidity in the granary can be adjusted, the constant-temperature and constant-humidity effects on the grains are achieved, and the grains are protected against water loss.

Description

technical field [0001] The invention relates to the technical field of air conditioning in granaries, in particular to a special air-conditioning unit for stepwise cooling of grain noodles. Background technique [0002] Low-temperature storage can improve grain quality and increase the moisture content of grain storage. At the same time, low-temperature conditions can effectively inhibit pest activity, slow down pest reproduction, and reduce the number of phosphine fumigations. The low-temperature grain storage equipment currently used mainly includes equipment for cooling grain piles. Grain cooler and the temperature control unit used in the upper space of the grain surface; both of these devices have the function of cooling, but neither can accurately control the temperature of the supply air, and often cause condensation on the grain due to the low temperature of the supply air, cooling and cooling At the same time, it also removes the moisture in the air, causing the deh...

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Problems solved by technology

[0002] Low-temperature storage can improve grain quality and increase the moisture content of grain storage. At the same time, low-temperature conditions can effectively inhibit pest activity, slow down pest reproduction, and reduce the number of phosphine fumigations. The low-temperature grain storage equipment currently used mainly includes equipment for cooling grain piles. Grain cooler and the temperature control unit used in the upper space of the grain surface; both of these devices have the function of cooling, but neither can accurately control the temperature of the supply air, and often cause condensation on the grain due to the low temperature of the supply air, cooling and cooling At the same time, it also removes the moisture in the air, causing the dehydration of the grain, which will lead to the loss of grain, reduce the benefit of grain storage, and affect the quality of grain

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