Granary with refrigeration and temperature control therein and temperature control method

Abstract

The invention discloses a granary with refrigeration and temperature control therein. The granary includes a granary house for storing grain piles, the surfaces of the grain piles are covered with film layers, wherein gaps are formed between the edges of the film layers and the side wall of the granary house, a plurality of first ventilating cages and second ventilating cages are arranged on the inner bottom surface of the granary house, the second ventilating cages are close to the side wall of the granary house, air ducts with a plurality of air holes along the duct bodies are arranged on the part, close to the side wall of the granary house, of the inner upper part of the granary house, at least two air conditioners are arranged on the inner upper part of the granary house, and fans arearranged outside the granary house for connecting the first ventilating cages, the second ventilating cages and the air ducts. The invention further discloses a temperature control method of the granary. The granary has the beneficial effects that a refrigeration source is placed in the granary house, the precise cooling around the grain piles is achieved, the ''hot surface'' phenomenon of the grain piles is avoided, and the purpose of efficient temperature control is achieved.

Description

technical field [0001] The invention relates to a granary with internal cooling and temperature control and a temperature control method, which are mainly used in the technical field of grain storage. Background technique [0002] Low-temperature grain storage is one of the more commonly used modern grain storage technologies. It mainly controls the physical factor of "temperature" to keep the grain at a certain low temperature, thereby increasing the stability of grain storage. Since grain is a living organism, the low temperature must be placed in a low temperature environment within a certain range (15°C to 20°C) on the basis of not freezing the grain and maintaining its normal life activities. This low temperature must be able to inhibit the growth and reproduction of insects and molds, limit the rate of change in the quality of stored grains, and then achieve the purpose of safe grain storage. Long-term grain storage practice and research have proved that low-temperatu...

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Problems solved by technology

[0005] The above existing technologies all have their own characteristics, but they all have certain limitations: the existing refrigeration low-temperature grain storage has simple construction methods and quick results, but it cannot cool down the interior and parts of the grain pile in time

[0006] 1. The thermal resistance of the enclosure structure of the warehouse has not been measured and calculated, resulting in slow cooling speed and short cold preservation time for environments that do not meet low-temperature grain storage

[0007] 2. The airtightness of the warehouse is poor, and "thermal bridges" are common, resulting in slow cooling and rapid heating, so the phenomenon of "hot skin" is prone to appear around the grain pile, that is, the grain pile is close to the side wall of the warehouse

[0008] 3. There is no classification and analysis of heat sources in the granary, and effective methods are formulated according to the characteristics of different heat sources (how to reduce human activities, fumigation circulation, space dehumidification and other heat sources), and blindly adopt the treatment method of "cooling it out"

[0009] 4. It cannot effectively solve the heat transfer caused by the temperature difference in the warehouse

[0010] 5. The cause of grain condensation has not been fundamentally eliminated, and there is a great potential safety hazard for grain storage

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