Grain storage system capable of controlling temperature and reducing loss by internal recirculation flow

Abstract

The invention discloses a grain storage system capable of controlling temperature and reducing loss by internal recirculation flow. The grain storage system comprises a grain storage barn, a circulation pipeline, a circulation fan, a controller and a barn temperature sensor, wherein the circulation pipeline comprises a ventilating duct, a horizontal insulation pipe, a vertical insulation pipe and a wall through pipe, the ventilating duct is arranged at the bottom of the barn and connected with a ventilation opening, the circulation fan is mounted on the outer barn wall, the ventilation opening is connected with an air inlet of the circulation fan, and the horizontal insulation pipe is connected with the air inlet of the circulation fan; an air outlet of the circulation fan is connected with the vertical insulation pipe, one end of the wall through pipe is connected with the vertical insulation pipe, the other end of the wall through pipe stretches into the barn, the barn temperature sensor is connected with the controller, and overall circulation fumigation inside the barn is realized by the aid of the circulation pipeline; ventilation and cooling of the system adopt an internal air circulation manner, moisture inside the grain cannot lose, the system has the advantages of efficiency, energy saving and environment protection, circulation fumigation can be realized by the aid of an internal recirculation flow pipeline, two manners are combined, the use efficiency can be improved greatly, and the equipment investment is little.

Description

technical field [0001] The invention relates to the technical field of grain surface temperature detection equipment, in particular to an internal circulation temperature control and loss storage system; through automatic control of ventilation, temperature adjustment of internal circulation in the warehouse, and internal circulation fumigation, the temperature of the grain surface is automatically detected and reaches the set value. Automatically turn on the circulation fan to bring the "cold core" in the center of the grain pile to the surface of the grain pile, thereby using the internal circulation of its own airflow to reduce the temperature of the grain surface. At the same time, the internal circulation pipeline and fan are used to circulate the phosphine gas from the grain surface to the interior of the grain pile through negative pressure, so as to realize the internal circulation fumigation in the warehouse. Background technique [0002] In the 21st century, the co...

AI Technical Summary

Problems solved by technology

At present, in terms of ventilation methods, axial flow fans, air conditioners, and valley coolers are mainly used to cool down, which have disadvantages such as long ventilation time, large energy consumption, and serious loss of grain moisture.

The existing circulation is mainly to draw the hot air on the grain surface to the "cold core", which will form condensation and affect the stored grain

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