Negative-pressure-typed granary cooling system

Abstract

The invention relates to a negative-pressure-typed granary cooling system which can effectively improve cooling efficiency of a granary grain cooling system and solve the problems that an existing cooling system is complex in structure and high in cost and cannot meet a modern under-membrane ventilation process and the purchase and using requirements for an ordinary granary. According to the technical scheme, the negative-pressure-typed granary cooling system comprises a granary, a cooling machine and a draught fan, the wall on the lower portion of the granary is provided with an air inlet, the side wall or the top of the granary is provided with at least one air outlet, the air inlet is provided with the cooling machine, the air outlet is provided with the draught fan, the draught fan at the air outlets sucks up the air forcibly so as to form negative pressure inside the granary, the outside air is sucked in from the air inlet of the cooling machine, the cooled air flow enter the interior of the granary and conducts cooling and ventilation on grain heaped in the granary, and finally the cooled air is discharged from the draught fan at the air outlet to form a negative-pressure-typed cooling structure. The negative-pressure-typed granary cooling system is easy to operate, good in cooling effect and safe and reliable, cooling storage cost is lowered by over one time, the cooling system is convenient to use and good in effect, is innovative in the field of grain cooling systems, and has good social and economical benefits.

Description

technical field [0001] The invention relates to granary equipment, in particular to a negative pressure granary cooling system. Background technique [0002] As we all know, an appropriate low temperature environment is required during grain storage to maintain the quality of stored grain and prevent the occurrence and development of insect mold. Therefore, using the granary cooling device to provide cooling capacity to the grain pile, reducing and controlling the temperature of the grain pile to maintain an appropriate low temperature state is the best means to ensure the safety of stored grain and reduce the loss of stored grain. The existing grain cooling system usually uses a grain cooler to blow low-temperature air from the lower part of the granary into the granary. The heat or moisture is transferred to the ventilation air flow, the high-temperature air passes through the grain heap and is discharged from the grain surface, and then is discharged out of the silo thro...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a negative pressure granary cooling system, which can effectively improve the cooling efficiency of the granary grain cooling system, solve the complex structure, high cost, and cannot meet the requirements of modern ventilation under the membrane. Process and common grain depot purchase and use requirements

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