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Low temperature storing grain method and system

A low-temperature, grain-stacking technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve the problems of inability to meet the technical requirements of low-temperature grain storage and poor cooling effect, and achieve low cost and long life The effect of long life and small installation workload

Inactive Publication Date: 2008-04-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Description
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Problems solved by technology

Furthermore, the method of using natural ventilation is also used, but due to the poor cooling effect, it cannot meet the technical requirements of low-temperature grain storage.

Method used

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  • Low temperature storing grain method and system
  • Low temperature storing grain method and system

Examples

Experimental program
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Embodiment Construction

[0015] As shown in Figure 1, the system consists of a single-cooling split wall-mounted inverter air conditioner 4, a low-temperature gravity heat pipe 3 suitable for the heat transfer characteristics of indica and stalk rice, a PLC control system 5, and a temperature sensor 6. The composition and working principle of this system will be further described below in conjunction with Fig. 1, Fig. 2 and Fig. 3 .

[0016] 1. Circulating cold air system

[0017] Cooling-only split wall-mounted inverter air conditioner 4 provides cooling air. Four or six single-cooling split wall-mounted inverter air conditioners are evenly and staggeredly installed on the upper part of the top surface 2 of the grain pile inside the room. See Figure 2 and Figure 3 for specific installation locations. The cold wind blown out forms a clockwise or counterclockwise circulation, thereby making the temperature of the cooling space more uniform. As shown in Figure 2, if the room is square, you need to inst...

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Abstract

The invention provides a grain storage method and the system thereof in the low temperature, and belongs to the low temperature grain storage technical field. The method and the device thereof are characterized in that (1) the heat conducted from the outside can be brought to the top space of the grain pile by a low-temperature gravity assisted heat pipe 3 which is arranged in the grain pile distributed around the storehouse; (2) the cool air in the space above the grain pile can flow circularly under the function of four to six sets of frequency converting air conditioners 4 to ensure the temperature in the space above the grain pile to be even; (3) the temperature signal can be monitored by temperature sensors 6 distributed in the storehouse, the start and the close of the frequency converting air conditioners 4 can be controlled by a PLC control system 5. The invention has high efficiency, simple system, long service life, and simple operation; is energy-saving, all-weather, and maintenance-free; and does not condense moisture.

Description

technical field [0001] The invention relates to a low-temperature grain storage method and system, belonging to the technical field of low-temperature grain storage. Background technique [0002] At present, there are many known methods of low-temperature grain storage, such as high-power mechanical compression grain cooler low-temperature grain storage technology, which uses conventional compression refrigerators to cool down the grain inside the grain depot during high-temperature seasons. Due to its huge power consumption and high operating costs, many grain depots cannot afford it. At present, they are basically out of use. There are also studies on the use of solar energy for low-temperature grain storage, but due to the time characteristics of solar energy, solar energy low-temperature grain storage has great limitations, especially in summer evenings and rainy seasons, when refrigerators cannot work normally, which will inevitably affect low-temperature preservation. ...

Claims

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Application Information

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IPC IPC(8): A23B9/00A23B9/10F24F11/02
Inventor 韩东彭涛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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