CN110856462A - Intelligent nitrogen filling and environment-friendly air conditioning system for grain depot - Google Patents
Intelligent nitrogen filling and environment-friendly air conditioning system for grain depot Download PDFInfo
- Publication number
- CN110856462A CN110856462A CN201810971572.2A CN201810971572A CN110856462A CN 110856462 A CN110856462 A CN 110856462A CN 201810971572 A CN201810971572 A CN 201810971572A CN 110856462 A CN110856462 A CN 110856462A
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- Prior art keywords
- port
- nitrogen
- electric butterfly
- butterfly valve
- granary
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 65
- 238000004378 air conditioning Methods 0.000 title abstract description 9
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims abstract description 5
- 230000003750 conditioning effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003958 fumigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/22—Ventilating arrangements
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B9/00—Preservation of edible seeds, e.g. cereals
- A23B9/16—Preserving with chemicals
- A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B9/20—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/51—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for storing agricultural or horticultural products
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Storage Of Harvested Produce (AREA)
Abstract
The invention discloses an intelligent nitrogen gas charging and environment-friendly gas regulating system for a grain depot, which is used in the field of nitrogen gas charging and grain protection of the grain depot and is characterized by comprising the following components in percentage by weight: nitrogen generator, first electric butterfly valve, second electric butterfly valve, third electric butterfly valve, circulating fan, first tee bend ball valve, second tee bend ball valve, granary bottom pipeline, granary top pipeline, granary. The intelligent nitrogen-filling ring-air-conditioning system for the grain depot has four working modes, namely a forward external circulation mode, a reverse external circulation mode, a forward internal circulation mode and a reverse internal circulation mode. The invention can solve the problem of uneven nitrogen gas in the nitrogen charging system of the traditional grain depot.
Description
Technical Field
The invention belongs to the technical field of grain storage, and particularly relates to a grain depot nitrogen intelligent environment-charging air-conditioning system with a nitrogen charging function.
Background
China is a large population country, and the grain storage technology is related to the normal development of national safety and economy, so that various grain depots with different capacities are available in various regions. In order to ensure that the grains are free of insect pests and mildew and deteriorate in the grain storage stage, various means and methods are provided for grain storage work, such as various modes of carbon dioxide grain storage, nitrogen grain storage, low-temperature grain storage, chemical agent fumigation grain storage and the like, wherein nitrogen grain storage is an optimal mode for green development of the grain storage industry in future.
For example, an intelligent air-conditioning nitrogen-filling device for a grain depot, which is disclosed in patent No. CN206323825U, divides an air-filling port into three paths, and can respectively fill nitrogen into the grain depot from the three ports. The device only carries out unidirectional nitrogen charging operation on the granary, does not carry out circulating and reverse nitrogen charging operation according to the characteristics of the granary, cannot ensure the uniformity of nitrogen in the granary, and has low efficiency.
Disclosure of Invention
The invention provides an intelligent nitrogen ring-filling air-conditioning system for a grain depot, which comprises a nitrogen making unit, a first electric butterfly valve, a second electric butterfly valve, a third electric butterfly valve, a circulating fan, a first three-way ball valve, a second three-way ball valve, a grain depot bottom pipeline, a grain depot top pipeline and a grain depot.
The first three-way ball valve is provided with a first port, a second port and a third port, the second three-way ball valve is provided with a fourth port, a fifth port and a sixth port, the outlet of the nitrogen making unit is connected with the first electric butterfly valve, the first electric butterfly valve is respectively connected with the third electric butterfly valve and the first port of the first three-way ball valve through pipelines, the second port is connected with a pipeline at the bottom of the granary, the pipeline at the bottom of the granary is connected to the bottom of the granary, the top of the granary is connected with a pipeline at the top of the granary, the pipeline at the top of the granary is connected with the fifth port, the fourth port is connected with a circulating fan, the circulating fan is respectively connected with the second electric butterfly valve and the third electric butterfly valve, and the second electric butterfly valve is.
The third port is communicated with a pipeline at the top of the granary, and the sixth port is communicated with a pipeline at the bottom of the granary.
The intelligent nitrogen-filled ring air-conditioning system for the grain depot has four working modes, namely a forward external circulation mode, a reverse external circulation mode, a forward internal circulation mode and a reverse internal circulation mode.
The invention has the beneficial effects that: the intelligent nitrogen-filling ring air-conditioning system for the grain depot is provided with the circulating fan and the electric ball valve, and the nitrogen filling of the grain depot can select a forward external circulation mode or a reverse external circulation mode, so that the nitrogen filling operation can be respectively carried out from the top of the grain depot or the bottom of the grain depot, and the forward internal circulation mode or the reverse internal circulation mode can be selected after the nitrogen filling of the grain depot is finished, so that the diffusion of the nitrogen in the grain depot is accelerated, the uniformity of the grain depot is ensured, and the system returns the gas in the grain depot to the nitrogen making machine when the nitrogen filling of the grain depot is finished, so that the concentration of the nitrogen sucked by the nitrogen making machine is increased, the purity of the produced nitrogen is also improved, and the nitrogen filling efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the forward external circulation mode operation of the present invention;
FIG. 3 is a schematic diagram of the reverse external circulation mode operation of the present invention;
FIG. 4 is a schematic diagram of the forward inner loop mode operation of the present invention;
FIG. 5 is a schematic diagram of the reverse internal circulation mode operation of the present invention;
in the figure: 1. a nitrogen making unit; 2. a first electric butterfly valve; 3. a second electric butterfly valve; 4. a third electric butterfly valve; 5. a circulating fan; 6. a first three-way ball valve; 7. a second three-way ball valve; 8. a pipeline at the bottom of the granary; 9. a pipeline at the top of the granary; 10. a granary; 601. a first port; 602. a second port; 603. a third port; 701. a fourth port; 702. a fifth port; 703. a sixth port.
Detailed Description
The invention is further illustrated but not limited by the following figures and examples.
As shown in fig. 1, the invention relates to a nitrogen intelligent ring-filling air-conditioning system for a grain depot, which comprises a nitrogen making unit 1, a first electric butterfly valve 2, a second electric butterfly valve 3, a third electric butterfly valve 4, a circulating fan 5, a first three-way ball valve 6, a second three-way ball valve 7, a grain depot bottom pipeline 8, a grain depot top pipeline 9 and a grain depot 10, and is characterized in that: first three-way ball valve 6 has first port 601, second port 602, third port 603, second three-way ball valve 7 has fourth port 701, fifth port 702, sixth port 703, the exit linkage first electric butterfly valve 2 of nitrogen generator 1, first electric butterfly valve 2 connects the first port 601 of third electric butterfly valve 4 and first three-way ball valve 6 respectively through the pipeline, granary bottom pipeline 8 is connected to second port 602, granary bottom pipeline 8 is connected to granary 10 bottoms, granary 10 tops and granary top pipeline 9 are connected, fifth port 702 is connected to granary top pipeline 9, circulating fan 5 is connected to fourth port 701, circulating fan 5 is through connecting second electric butterfly valve 3 and third electric butterfly valve 4 respectively, nitrogen generator 1 is connected to second electric butterfly valve 3. The third port (603) is communicated with a pipeline (9) at the top of the granary, and the sixth port is communicated with a pipeline (8) at the bottom of the granary.
As shown in fig. 2, in the forward external circulation mode, the nitrogen generator set 1 generates nitrogen, the nitrogen is delivered to the bottom of the grain bin 10 through the first electric butterfly valve 2, the first three-way ball valve 6, the second port 602 and the grain bin bottom pipeline 8, the nitrogen penetrates grains in the grain bin 10 to reach the top of the grain bin 10 and enter the grain bin top pipeline 9, so that air around the grains in the grain bin 10 is discharged to the grain bin top pipeline 9, and the discharged gas flows back to the nitrogen generator set 1 through the fifth port 702, the second three-way ball valve 7, the circulating fan 5 and the second electric butterfly valve 3. The content of partial nitrogen which flows back from the grain bin 10 and is contained in the gas sucked by the nitrogen making unit 1 is high, so that the content of the nitrogen generated by the nitrogen making unit is improved, and the efficiency and the flow rate of the nitrogen generated by the nitrogen making unit are improved. The third electric butterfly valve 4 is in a closed state in the mode, and the nitrogen filling pipeline and the return pipeline are guaranteed to be mutually influenced. The circulation can quickly improve the concentration of nitrogen in the grain bin 10, and the aims of protecting grain storage and removing plant diseases and insect pests are achieved.
As shown in fig. 3, in the reverse external circulation mode, nitrogen generated by the nitrogen generator set is delivered to the top pipeline 9 of the granary through the first electric butterfly valve 2, the first three-way ball valve 6 and the third port 603, enters the granary 10 from this, passes through grains inside the granary 10, then flows back through the bottom pipeline 8 of the granary, and is delivered back to the nitrogen generator set 1 through the second three-way ball valve 7, the third port 703, the circulating fan 5 and the second electric butterfly valve 3. Under this mode of operation, third electric butterfly valve 4 is in the closed condition, guarantees that nitrogen gas fills nitrogen pipe and return line and influences each other.
In the forward internal circulation mode as shown in fig. 4, the nitrogen generator set stops after nitrogen filling of the granary is completed, the first electric butterfly valve 2 and the second electric butterfly valve 3 are closed, the third electric butterfly valve 4 is opened, and the circulating fan 5 is started. The nitrogen pumped back by the circulating fan 5 is conveyed into the granary 10 through the third electric butterfly valve 4, the first three-way ball valve 6, the second port 602 and the granary bottom pipeline 8, and due to the pumping action of the circulating fan 5, the nitrogen is pumped out of the circulating fan 5 through the granary top pipeline 9, the fifth port 702 and the second three-way ball valve 7 and the fourth port 701. Therefore, the positive internal circulation work can be completed, the nitrogen in the granary 10 can be fully circulated in the mode, and finally, the nitrogen concentration of each part in the granary is uniform and consistent.
And in a reverse internal circulation mode as shown in fig. 5, the nitrogen making unit stops after nitrogen filling work of the granary is completed, the first electric butterfly valve 2 and the second electric butterfly valve 3 are closed, the third electric butterfly valve 4 is opened, and the circulating fan 5 is started. The nitrogen pumped back by the circulating fan 5 is conveyed into the granary 10 through the third electric butterfly valve 4, the first three-way ball valve 6, the third port 603 and the granary top pipeline 9, and due to the pumping action of the circulating fan 5, the nitrogen is pumped out of the circulating fan 5 through the granary bottom pipeline 8, the sixth port 703 and the second three-way ball valve 7 and the fourth port 701. Therefore, the positive internal circulation work can be completed, the nitrogen in the granary 10 can be fully circulated in the mode, and finally, the nitrogen concentration of each part in the granary is uniform and consistent.
The above description is an example of the present invention and is not intended to limit the scope of the claims, and all equivalent structural changes made by using the description and drawings are included in the scope of the present invention.
Claims (3)
1. The utility model provides a grain depot nitrogen gas intelligence fills ring gas conditioning system, includes nitrogen making unit (1), first electric butterfly valve (2), second electric butterfly valve (3), third electric butterfly valve (4), circulating fan (5), first tee bend ball valve (6), second tee bend ball valve (7), granary bottom pipeline (8), granary top pipeline (9), granary (10), its characterized in that: the first three-way ball valve (6) is provided with a first port (601), a second port (602) and a third port (603), the second three-way ball valve (7) is provided with a fourth port (701), a fifth port (702) and a sixth port (703), the outlet of the nitrogen making unit (1) is connected with a first electric butterfly valve (2), the first electric butterfly valve (2) is respectively connected with the third electric butterfly valve (4) and the first port (601) of the first three-way ball valve (6) through pipelines, the second port (602) is connected with a grain bin bottom pipeline (8), the grain bin bottom pipeline (8) is connected to the bottom of a grain bin (10), the top of the grain bin (10) is connected with a grain bin top pipeline (9), the grain bin top pipeline (9) is connected with the fifth port (702), the fourth port (701) is connected with a circulating fan (5), and the circulating fan (5) is respectively connected with the second electric butterfly valve (3) and the third electric butterfly valve (4), the second electric butterfly valve (3) is connected with the nitrogen generating unit (1).
2. The intelligent nitrogen-filled atmosphere control system for grain depot according to claim 1, which is characterized in that: the third port (603) is communicated with a pipeline (9) at the top of the granary, and the sixth port is communicated with a pipeline (8) at the bottom of the granary.
3. The intelligent nitrogen-filled atmosphere control system for grain depot according to claim 1, which is characterized in that: the four working modes are a forward external circulation mode, a reverse external circulation mode, a forward internal circulation mode and a reverse internal circulation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971572.2A CN110856462A (en) | 2018-08-24 | 2018-08-24 | Intelligent nitrogen filling and environment-friendly air conditioning system for grain depot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810971572.2A CN110856462A (en) | 2018-08-24 | 2018-08-24 | Intelligent nitrogen filling and environment-friendly air conditioning system for grain depot |
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| Publication Number | Publication Date |
|---|---|
| CN110856462A true CN110856462A (en) | 2020-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810971572.2A Pending CN110856462A (en) | 2018-08-24 | 2018-08-24 | Intelligent nitrogen filling and environment-friendly air conditioning system for grain depot |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762456A (en) * | 2020-06-22 | 2020-10-13 | 中国科学院电工研究所 | Electrical equipment sealed cabin system with nitrogen gas directional temperature control function |
| CN115088484A (en) * | 2022-06-22 | 2022-09-23 | 湖南粮食集团有限责任公司 | Transverse nitrogen-filled controlled atmosphere grain storage system and grain storage method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2715542Y (en) * | 2004-09-01 | 2005-08-10 | 中央储备粮南京直属库 | Grain heap nitrogen charging device for grain storage |
| CN104126662A (en) * | 2014-08-15 | 2014-11-05 | 中南林业科技大学 | Controlled atmosphere freshness and quality keeping method and device for grain storage |
| CN205512019U (en) * | 2015-10-30 | 2016-08-31 | 湖南省粮油科学研究设计院 | Novel nitrogen protection stores up grain device |
| KR20170054643A (en) * | 2015-11-10 | 2017-05-18 | 대한민국(농촌진흥청장) | Agricultural product storage system and agricultural product storage method using the agricultural product storage system |
| CN209185591U (en) * | 2018-08-24 | 2019-08-02 | 北京长顺安达测控技术有限公司 | A kind of grain depot nitrogen intelligently fills ring Air-conditioning system |
-
2018
- 2018-08-24 CN CN201810971572.2A patent/CN110856462A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2715542Y (en) * | 2004-09-01 | 2005-08-10 | 中央储备粮南京直属库 | Grain heap nitrogen charging device for grain storage |
| CN104126662A (en) * | 2014-08-15 | 2014-11-05 | 中南林业科技大学 | Controlled atmosphere freshness and quality keeping method and device for grain storage |
| CN205512019U (en) * | 2015-10-30 | 2016-08-31 | 湖南省粮油科学研究设计院 | Novel nitrogen protection stores up grain device |
| KR20170054643A (en) * | 2015-11-10 | 2017-05-18 | 대한민국(농촌진흥청장) | Agricultural product storage system and agricultural product storage method using the agricultural product storage system |
| CN209185591U (en) * | 2018-08-24 | 2019-08-02 | 北京长顺安达测控技术有限公司 | A kind of grain depot nitrogen intelligently fills ring Air-conditioning system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762456A (en) * | 2020-06-22 | 2020-10-13 | 中国科学院电工研究所 | Electrical equipment sealed cabin system with nitrogen gas directional temperature control function |
| CN111762456B (en) * | 2020-06-22 | 2022-07-22 | 中国科学院电工研究所 | Electrical equipment sealed cabin system with nitrogen gas directional temperature control function |
| CN115088484A (en) * | 2022-06-22 | 2022-09-23 | 湖南粮食集团有限责任公司 | Transverse nitrogen-filled controlled atmosphere grain storage system and grain storage method |
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