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Horizontal nitrogen-filled air-conditioning system for grain depot and method for air-conditioning grain storage

A technology for filling nitrogen and grain depots, applied in chemical instruments and methods, botany equipment and methods, nitrogen compounds, etc., can solve problems such as shortage, achieve less nitrogen waste, high nitrogen filling efficiency, and good gas distribution uniformity Effect

Active Publication Date: 2019-05-21
浙江省粮食局直属粮油储备库
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is relatively common to pass nitrogen into the grain depot and maintain it for a certain period of time to kill insects, prevent insects, suppress mildew, and preserve freshness. Effect, nitrogen utilization rate, inflation efficiency, inflation uniformity, etc., are all lacking

Method used

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  • Horizontal nitrogen-filled air-conditioning system for grain depot and method for air-conditioning grain storage
  • Horizontal nitrogen-filled air-conditioning system for grain depot and method for air-conditioning grain storage
  • Horizontal nitrogen-filled air-conditioning system for grain depot and method for air-conditioning grain storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: as Figure 1 to Figure 6 As shown in , a horizontal nitrogen-filled air-conditioning system for grain storage includes a grain storage body 1 and a membrane-separated nitrogen generator 2, and also includes two air-conditioning air duct structures. The side wall 11, the short side wall and the storage roof 12 arranged in parallel on both sides, the lower end of the long side wall is connected to the ground, the lower end of the short side wall is connected to the ground, and the structure of the air conditioning duct corresponds to the long side wall;

[0040] In the corresponding air-conditioning duct structure and the long side wall: the air-conditioning duct structure includes a wall air duct 31 arranged on the long side wall, an opening and closing door 32 that can be used to close one end of the wall air duct, and the other end of the wall air duct. A main air pipe 33 connected at one end and a plurality of vertical air pipes 34 communicated with the ...

Embodiment 2

[0048] Embodiment 2: the basic structure and implementation mode of this embodiment are the same as embodiment 1, and its difference is, as Figure 7 to Figure 12 As shown in , in the corresponding air-conditioning air duct structure and long side wall: the air-conditioning air duct structure also includes a rear glue leveling cylinder 36 arranged on the long side wall, and the long side wall is provided with several The first rubber storage tube 41 in the side wall, the second rubber storage tube 42 embedded in the long side wall and the third rubber storage tube 43 embedded in the long side wall, the wall air channel is cylindrical, and the wall air channel diameter Upward, the first rubber storage tube is between the inner sealing ring and the wall air passage, the second rubber storage tube is between the inner sealing ring and the outer sealing ring, and the third rubber storage tube is between the outer sealing ring and the outer edge of the bottom film;

[0049] One end...

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Abstract

The invention discloses a grain bin transverse nitrogen-charging adjustment system. The system comprises a grain storage bin and a membrane separation nitrogen generator, and further comprises two air-adjusted air duct structures; the air-adjusted air duct structures comprise wall air ducts, open-close doors, main air ducts and a plurality of vertical support air pipes, a plurality of air holes are formed in the vertical support air pipes, and nitrogen supplying air holes are connected to one end of the nitrogen supplying pipe in a butt joint mode; connectors which are connected with the wall air duct of one air-adjusted air duct structure in a butt joint mode are arranged at the other end of the nitrogen supplying pipe, air inlets of a nitrogen preparation main engine are connected to one end of an air return pipe in a butt joint mode, and the connectors which are connected with the wall air duct of another air-adjusted air duct structure in a butt joint mode are arranged at the other end of the air return pipe; a nitrogen supplying on-off valve is arranged on the nitrogen supplying pipe, and a nitrogen concentration detection instrument and a pressure determinator are all arranged on the air return pipe. The grain bin transverse nitrogen charge air-adjusted system has the advantages that a grain bin can be effectively filled with nitrogen, accordingly, grain piles in the grain bin can be effectively subjected to disinfestation, mould inhibition and preservation, and the system is good in gas distribution uniformity, high in nitrogen efficiency and less in nitrogen waste.

Description

technical field [0001] The invention relates to the technical field of controlled-atmosphere grain storage, in particular to a grain depot horizontal nitrogen-filled controlled-atmosphere system and a controlled-atmosphere stored grain method. Background technique [0002] Controlled atmosphere grain storage technology is one of the internationally recognized green storage beam technologies. It is a green and safe storage beam technology that integrates insecticide, insect control, mildew suppression, and freshness preservation. Specifically, controlled atmosphere storage refers to artificially changing the gas composition of the normal atmosphere or adjusting the ratio of the original gas, so as to control a certain gas concentration within a certain range and maintain it for a certain time, so as to achieve insecticidal and mildew suppression. Grain storage technology that delays changes in grain quality. At present, it is relatively common to pass nitrogen into the grain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01F25/14A23B9/20C01B21/04
CPCA01F25/14A23B9/20C01B21/0438C01B2210/0045
Inventor 金建德沈波刘益云赵建江胡长武
Owner 浙江省粮食局直属粮油储备库
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