CN213907568U - Automatic circulation control's air conditioning stores up grain device - Google Patents
Automatic circulation control's air conditioning stores up grain device Download PDFInfo
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- CN213907568U CN213907568U CN202022337241.9U CN202022337241U CN213907568U CN 213907568 U CN213907568 U CN 213907568U CN 202022337241 U CN202022337241 U CN 202022337241U CN 213907568 U CN213907568 U CN 213907568U
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Abstract
The utility model provides an automatic circulation control's gas accuse stores up grain device, its carbon dioxide concentration in can the automatic adjustment granary need not artificial intervention, has reduced the cost of labor, and ensures that the result is accurate. It includes: connect in granary ventilation pipe-line system's carbon dioxide import, the carbon dioxide access connection has gas flow control structure, gas flow control structure and PLC control system automatically controlled connection, its characterized in that: the system also comprises a bin top carbon dioxide concentration detector arranged at the top of the granary, a bin bottom carbon dioxide concentration detector arranged at the bottom of the granary and a circulating fan communicated with the ventilation pipeline system; the carbon dioxide concentration detector at the top of the bin, the carbon dioxide concentration detector at the bottom of the bin and the circulating fan are respectively in electric control connection with the PLC control system.
Description
Technical Field
The utility model relates to the technical field of grain storage devices, in particular to an automatic circulation control air-conditioning grain storage device.
Background
The air-conditioning grain storage technology is a common storage quantity technology, and the air composition in a grain storage warehouse is manually adjusted by using the modes of oxygen reduction, nitrogen or carbon dioxide addition, chemical oxygen scavengers and the like to generate oxygen deficiency or oxygen deficiency, prevent the metabolic activity of harmful organisms, and achieve the purposes of controlling the breeding and spreading of insect pests, inhibiting the propagation of mold, reducing the respiration and physiological metabolic strength of grains and delaying the ageing of the quality of the grains. In view of cost, the discharge of carbon dioxide into the granary is a common air-conditioned grain storage technical mode, and because the density of carbon dioxide is greater than that of air, the concentration of carbon dioxide at the bottom of the granary is higher than that at the top of the granary; according to the storage requirement of the granary, the carbon dioxide concentration in the granary needs to be higher than 35% to meet the technical requirement of storage; however, due to air tightness and the like, carbon dioxide in the granary becomes low after a period of time, particularly the carbon dioxide at the top of the granary is lower than 35% at first, and the carbon dioxide concentration at the bottom of the granary is still very high at the moment; in the prior art, the concentration of carbon dioxide at the top of a granary is adjusted by manually and periodically detecting the concentration of carbon dioxide; however, this manual intervention leads to a lot of increased labor costs and is prone to errors.
Disclosure of Invention
In order to solve the problem that carbon dioxide concentration adjustment relies on manual intervention among the current take-off grain storage device, leads to the increase of warehouse cost of labor, the utility model provides an automatic circulation control's gas accuse grain storage device, it can carbon dioxide concentration in the automatically regulated granary, need not manual intervention, has reduced the cost of labor, and ensures that the result is accurate.
The structure of the utility model is as follows: an automatic circulation control air-conditioning grain storage device, which comprises: connect in granary ventilation pipe-line system's carbon dioxide import, the carbon dioxide access connection has gas flow control structure, gas flow control structure and PLC control system automatically controlled connection, its characterized in that: the system also comprises a bin top carbon dioxide concentration detector arranged at the top of the granary, a bin bottom carbon dioxide concentration detector arranged at the bottom of the granary and a circulating fan communicated with the ventilation pipeline system; the carbon dioxide concentration detector at the top of the bin, the carbon dioxide concentration detector at the bottom of the bin and the circulating fan are respectively in electric control connection with the PLC control system.
It is further characterized in that:
the gas flow control structure includes: the device comprises a gasifier, a temperature detection device, a pressure detection device, a gas regulating valve and a flow control mechanism.
The utility model provides an automatic circulation control's gas conditioning stores up grain device, through the carbon dioxide concentration detection instrument of storehouse top real time monitoring granary top, through the carbon dioxide concentration detection instrument of storehouse bottom real time monitoring granary bottom, when the carbon dioxide concentration of granary top drops to top early warning value, start circulating fan based on PLC control system, circulate the carbon dioxide of granary bottom to the granary top; when the concentration of the carbon dioxide at the top of the granary rises to a preset value, stopping the circulating fan; meanwhile, the carbon dioxide concentration at the bottom of the granary is monitored in real time based on a carbon dioxide concentration detector at the bottom of the granary, when the carbon dioxide concentration at the bottom reaches a bottom early warning value, the gas flow control structure is started, carbon dioxide is conveyed into the granary through the carbon dioxide inlet, and the fact that the overall concentration in the granary meets the storage technical requirements is ensured; in the technical scheme of the invention, the automatic circulation control of the carbon dioxide gas in the granary is realized based on the granary top carbon dioxide concentration detector, the granary bottom carbon dioxide concentration detector and the circulating fan, the automatic adjustment of the carbon dioxide concentration at the top and the bottom in the granary is realized, the carbon dioxide concentration can be adjusted in real time, the accuracy of an adjustment result is ensured, and the labor cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of an automatic circulation control part in a controlled atmosphere grain storage device.
Detailed Description
As shown in fig. 1, the utility model relates to an automatic circulation control air-conditioning grain storage device, which comprises: the carbon dioxide inlet is connected with a gas flow control structure (not shown in the figure), and the gas flow control structure is electrically connected with a PLC (programmable logic controller) control system 4, and further comprises a bin top carbon dioxide concentration detector 2 arranged at the top of the granary 1, a bin bottom carbon dioxide concentration detector 3 arranged at the bottom of the granary 1, and a circulating fan 5 communicated with the ventilation pipeline system; the bin top carbon dioxide concentration detector 2, the bin bottom carbon dioxide concentration detector 3 and the circulating fan 5 are respectively in electric control connection with the PLC control system 4; the gas flow control structure includes: the gasifier is connected with the carbon dioxide storage device, and the temperature detection device, the pressure detection device, the gas regulating valve and the flow control mechanism are connected with the gasifier; control gas flow control structure through PLC control system, reach the regulation and control to the flow, the pressure of the carbon dioxide of discharging in the warehouse, can also monitor the temperature of discharging carbon dioxide simultaneously, concrete connection mode and theory of operation are based on the technical scheme realization of the gas conditioning grain storage device among the prior art.
When the technical scheme of the utility model is implemented, firstly, the gas flow control structure sends carbon dioxide into the granary through the carbon dioxide inlet; because the carbon dioxide concentration in the granary needs to be higher than 35% to meet the technical requirement of storage, the carbon dioxide concentration early warning value of the granary 1 is preset: a top warning value of 40%; the carbon dioxide concentration detector 2 at the top of the granary monitors the carbon dioxide concentration at the top of the granary in real time, when the carbon dioxide concentration detector 2 at the top of the granary monitors that the concentration at the top of the granary is less than or equal to 40%, and meanwhile, when the carbon dioxide concentration at the bottom is higher than a bottom early warning value, the circulating fan 5 is started to circulate the carbon dioxide at the bottom of the granary to the top of the granary; when the carbon dioxide concentration detector 2 at the top of the granary monitors that the concentration at the top of the granary is higher than 40% and reaches the range of 45% -50%, stopping the circulating fan 5; the specific stopping value is set according to the size of the granary. The whole process is completely and automatically implemented, and the concentration of carbon dioxide in the granary is ensured to meet the storage requirement through real-time detection.
In the working process of the circulating fan 5, the carbon dioxide concentration detector 3 at the bottom of the granary monitors the carbon dioxide concentration at the bottom of the granary in real time, if the carbon dioxide concentration is lower than a preset early warning value, the gas flow control structure is started, carbon dioxide is supplemented into the granary through the carbon dioxide inlet, and the fact that the concentration of the whole carbon dioxide in the granary meets the storage requirement is guaranteed.
Claims (2)
1. An automatic circulation control air-conditioning grain storage device, which comprises: connect in granary ventilation pipe-line system's carbon dioxide import, the carbon dioxide access connection has gas flow control structure, gas flow control structure and PLC control system automatically controlled connection, its characterized in that: the system also comprises a bin top carbon dioxide concentration detector arranged at the top of the granary, a bin bottom carbon dioxide concentration detector arranged at the bottom of the granary and a circulating fan communicated with the ventilation pipeline system; the carbon dioxide concentration detector at the top of the bin, the carbon dioxide concentration detector at the bottom of the bin and the circulating fan are respectively in electric control connection with the PLC control system.
2. The automatic circulation controlled air-conditioned grain storage device of claim 1, which is characterized in that: the gas flow control structure includes: the device comprises a gasifier, a temperature detection device, a pressure detection device, a gas regulating valve and a flow control mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022337241.9U CN213907568U (en) | 2020-10-20 | 2020-10-20 | Automatic circulation control's air conditioning stores up grain device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022337241.9U CN213907568U (en) | 2020-10-20 | 2020-10-20 | Automatic circulation control's air conditioning stores up grain device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213907568U true CN213907568U (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022337241.9U Active CN213907568U (en) | 2020-10-20 | 2020-10-20 | Automatic circulation control's air conditioning stores up grain device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213907568U (en) |
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2020
- 2020-10-20 CN CN202022337241.9U patent/CN213907568U/en active Active
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