CN114009229A - Multifunctional circulation system for grain storage - Google Patents
Multifunctional circulation system for grain storage Download PDFInfo
- Publication number
- CN114009229A CN114009229A CN202111425074.6A CN202111425074A CN114009229A CN 114009229 A CN114009229 A CN 114009229A CN 202111425074 A CN202111425074 A CN 202111425074A CN 114009229 A CN114009229 A CN 114009229A
- Authority
- CN
- China
- Prior art keywords
- circulation
- pipeline
- valve
- communicated
- grain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- 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
Abstract
The invention discloses a multifunctional circulation system, which comprises a circulation device, a vent main pipe and a grain surface main pipe, wherein the circulation device, the vent main pipe and the grain surface main pipe are arranged outside the wall of a grain depot, and the circulation device comprises: the lower end of the first warehouse inlet pipeline is sequentially connected with a first valve and a first quick connector for externally connecting process equipment; the lower end of the second warehouse inlet pipeline is sequentially connected with a second valve and a second quick connector for externally connecting process equipment, the first circulation pipeline is respectively communicated with the first warehouse inlet pipeline and the second warehouse inlet pipeline through branch pipelines, the second circulation pipeline is respectively communicated with the first warehouse inlet pipeline and the second warehouse inlet pipeline through branch pipelines, wherein the first branch pipeline, the second branch pipeline, the fourth branch pipeline and the fourth branch pipeline are respectively provided with a valve and a circulation fan, the air inlet of the circulation fan is communicated with the first circulation pipeline, and the air outlet of the circulation fan is communicated with the second circulation pipeline.
Description
Technical Field
The invention relates to a grain storage technology of a grain depot, in particular to a multifunctional circulation system for grain storage.
Background
Grain storage is the guarantee of guaranteeing national grain safety, and low temperature and air conditioning technology are internationally recognized green storage technologies, especially in southern high temperature and high humidity areas.
Compared with the low-temperature grain storage technology, the nitrogen grain storage technology has better economical efficiency, and also has the advantages of killing insects, inhibiting bacteria, delaying the quality reduction of the stored grains and the like. The temperature-controlled storage technology has been greatly improved along with the development of the times and the continuous perfection of various advanced devices and control software.
The requirements of a current circulation fumigation system and nitrogen-rich controlled atmosphere on a circulation device are different, the circulation device is selected and matched according to a specific process system when a grain depot is newly built or reconstructed, and when various grain storage process systems are selected, the circulation device is incompatible, so that inconvenience is brought. When a granary is constructed and planned, the manufacturability of each system is considered comprehensively, and the problem is solved urgently at present.
Disclosure of Invention
The invention aims to provide a multifunctional circulation system for grain storage, which meets the requirements of various grain storage process systems on circulation devices.
Therefore, the invention provides a multifunctional circulation system, which comprises a circulation device arranged outside the wall of a grain depot, a vent main pipe and a grain surface main pipe entering the grain depot, a plurality of vents penetrating through the wall of the grain depot and in-bin pipelines for communicating the vent main pipe with the vents, wherein each vent is communicated with a plurality of cage pipelines, and the circulation device comprises: the upper end of the first warehouse inlet pipeline is communicated with the vent main pipe, and the lower end of the first warehouse inlet pipeline is sequentially connected with a first valve and a first quick connector for externally connecting process equipment; the upper end of the second warehousing pipeline is communicated with the grain surface main pipe, and the lower end of the second warehousing pipeline is sequentially connected with a second valve and a second quick connector for externally connecting process equipment; the first circulation pipeline is communicated with the first bin inlet pipeline through a first branch pipeline and is communicated with the second bin inlet pipeline through a second branch pipeline, wherein the first branch pipeline is provided with a third valve, and the second branch pipeline is provided with a fourth valve; the second circulation pipeline is communicated with the first warehouse inlet pipeline through a third branch pipeline and is communicated with the second warehouse inlet pipeline through a second branch pipeline, wherein a fifth valve is arranged on the third branch pipeline, and a sixth valve is arranged on the fourth branch pipeline; and the air inlet of the circulation fan is communicated with the first circulation pipeline, and the air outlet of the circulation fan is communicated with the second circulation pipeline, wherein the circulation fan runs in a single direction, and an air flow circulation path required by various grain storage process systems is switched by controlling the opening and closing of the first valve to the sixth valve, and the various grain storage process systems comprise an inner loop flow control temperature process system, a circulation fumigation process system and a nitrogen-enriched air-conditioned process system.
In the multifunctional circulation system, the opening and closing of six valves of the circulation device are controlled, so that the special requirements of various common grain storage process systems such as an inner loop flow control temperature process system, a circulation fumigation process system and a nitrogen-rich air-conditioning process system on an air circulation path can be comprehensively considered, and different process systems are allowed to be applied to a warehouse in different periods, different conditions and different environments, so that the purposes of controlling temperature, killing insects and killing insects are achieved, and the quality and the efficiency of grain storage are further ensured.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the layout of a multi-functional circulation system according to the present invention outside the cabin;
fig. 2 is a schematic view of the layout of the multi-functional circulation system within the tank according to the present invention;
figure 3 is a schematic view of the construction of the circulation device of the multi-functional circulation system according to the present invention;
FIG. 4 shows a gas flow diagram for an internal loop controlled warm process for a multi-functional loop system according to the present invention;
figure 5 shows a gas flow diagram of a multi-functional circulation system for a circulation fumigation process according to the present invention;
FIG. 6 shows a gas flow diagram of a multi-functional loop system for nitrogen-rich controlled atmosphere processes according to the present invention, wherein the aeration is performed by suction forced displacement (top-bottom discharge);
FIG. 7 shows a gas flow diagram of the multi-functional loop system according to the present invention for a nitrogen-enriched modified atmosphere process; and
figure 8 shows a nitrogen concentration detection piping diagram in a silo when the multifunctional circulation system is used in a nitrogen-rich controlled atmosphere process.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1-3 in combination, the multi-functional circulation system of the present invention is used in a grain depot and includes a vent manifold 11 and a grain surface manifold 12 disposed on the outer wall of the grain depot 10. The air vent main pipe 11 is communicated with a plurality of air vents 14 through fixed PVC pipelines 13 in the bin, and each air vent 14 is communicated with a plurality of ground cage pipelines 15.
The multifunctional circulation system also comprises a circulation device 20 arranged outside the wall of the grain depot, wherein the circulation device comprises a first warehousing pipeline 21, a second warehousing pipeline 22, a circulation fan 23, a first circulation pipeline 24, a second circulation pipeline 25, a first valve 31, a second valve 32, a third valve 33, a fourth valve 34, a fifth valve 35 and a sixth valve 36.
The first inlet pipe 21 is communicated with the vent manifold 11. The lower end of the first warehousing pipe 21 is connected in turn with a first valve 31 and a first quick connection 37 for selectively externally connecting process equipment 50.
The upper end of the second warehousing pipe 22 is communicated with the grain surface main pipe 12, and the lower end of the second warehousing pipe 22 is sequentially connected with a second valve 32 and a second quick connector 38 for selectively connecting external process equipment.
The first warehousing pipeline 21 and the second warehousing pipeline 22 are arranged in parallel and extend downwards from the high part of the outer wall of the grain depot. The first circulation pipe 24 and the second circulation pipe 25 are both arranged side by side one above the other within a manually accessible height range (e.g. 1.0m to 1.8 m).
The circulating fan 23 is a unidirectional fan to provide a continuous and stable air flow with a constant wind speed and wind pressure. The air inlet of the circulation fan 23 is connected to the first circulation duct 24, and the air outlet thereof is connected to the second circulation duct 25.
The first circulation line 24 has two and only two line branches, namely a first branch line 26 and a second branch line 27, wherein the first branch line 26 communicates with the first inlet line 21, the second branch line 27 communicates with the second inlet line 22, wherein the third valve 33 is arranged on the first branch line 26, and the fourth valve 34 is arranged on the second branch line.
The second circulation line 25 has two and only two line branches, namely a third branch line 28 and a fourth branch line 29, wherein the third branch line 28 communicates with the first inlet line 21, the fourth branch line 29 communicates with the second inlet line 22, wherein a fifth valve 35 is provided on the third branch line 28, and a sixth valve 36 is provided on the sixth branch line 29.
The circulation fan runs in a single direction, and specific requirements of various grain storage process systems on air circulation paths can be met by controlling the opening and closing of the first valve, the second valve, the third valve and the fourth valve, the various grain storage process systems comprise an inner loop flow control temperature process system, a circulation fumigation process system and a nitrogen-rich air-conditioning process system, and the grain storage process systems can be selected by a storeroom.
Preferably, the diameter of the pipeline outside the warehouse is 108mm, the wall thickness is not less than 1.5mm, heat insulation treatment is carried out by heat insulation cotton, and the thickness of the heat insulation layer is not less than 20 mm; the distance between the air outlet of the circulating pipeline and the grain surface is about 1.0 m. The diameter of the pipeline in the warehouse is 110mm by using PVC material, and the wall thickness is not less than 3 mm.
Preferably, the circulating fan is a fan with leakage-proof and explosion-proof functions. The main specification parameters of the circulating fan require: the power is more than or equal to 0.75kw at 1.0 kw; the wind speed of the air outlet is less than or equal to 25m/s, and the wind pressure is more than or equal to 1000 Pa. The circulation fan is connected with the circulation pipeline without air leakage. The fan should take rainproof and sunscreen measures and heat insulation treatment by using heat insulation cotton, and the thickness of the heat insulation layer is 20 mm.
The multifunctional circulation system is combined with external process equipment, and an internal circulation temperature control process system, a circulation fumigation process system and a nitrogen-rich air-conditioning process system can be constructed.
The various process systems constructed with the multi-functional circulation system of the present invention are described in detail below.
Temperature control process system with internal circulation
The function of the internal circulation temperature control process system is as follows: cooling, insect prevention, damage reduction, synergy, grain temperature and moisture balance, lower installation and operation cost and the like.
The temperature control storage technical route is as follows: the barn is insulated, the temperature of basic grains is reduced by ventilation in autumn and winter, the temperature rise of the grains is delayed by covering heat insulation in spring, and the cold source is supplemented in time by heat removal in summer.
The controlled temperature storage control targets are: the average grain temperature in spring is below 15 ℃, and the maximum temperature is below 20 ℃; the average grain temperature in summer is below 20 ℃, and the maximum temperature is below 25 ℃; the average grain temperature is below 10 ℃ in winter, and the maximum temperature is below 20 ℃; the average grain temperature in autumn is below 18 deg.C, and the maximum temperature is below 25 deg.C.
The internal circulation temperature control process has multiple functions of automatic temperature acquisition in the bin, automatic ventilation control and the like. The default working mode of the system is a temperature control mode. The system arranges a temperature sensor at a position 1m away from the grain surface in the middle of the grain surface to detect the temperature of the grain surface in real time, and when the detected temperature is higher than the set temperature, the system starts a circulating fan, and gas circulates in the bin to reduce the temperature of the warehouse and the temperature of upper-layer grains. And when the detected grain surface temperature reaches the set temperature, the system stops running.
As shown in fig. 4, the circulation path of the gas in the cabin is: low-temperature air at the center of the grain pile → an upper ground cage pipeline → a first warehousing pipeline → a circulating fan → a second warehousing pipeline → the upper surface layer of the grain pile → the inside of the grain pile.
Second, circulation fumigation process system
The circulation fumigation process system has the following functions: the device can promote the fumigant gases such as phosphine and the like to be uniformly distributed in the grain pile by forcing the gas circulation in the grain pile so as to achieve the aim of effectively killing insects.
The circulation fumigation process system also comprises a pesticide applying device and a detection device.
The detection device mainly comprises a gas sampling device, a detection box, a phosphine concentration detector and a phosphine alarm instrument, wherein the phosphine concentration detector and the phosphine alarm instrument are positioned in the detection box.
The gas sampling device comprises a sampling pump, an air return pipe, a plurality of gas sampling pipes and a gas sampling head arranged at the tail end of each sampling pipe.
The storehouse can be provided with 1 air sampling device. Each set of sampling device should be provided with at least 5 sampling points and one air return pipe.
The gas sampling tube and the muffler are sealed by flanges or plugs. The number of the gas sampling tubes is consistent with the number of the sampling points. The insertion of the gas sampling head into the grain heap should be prevented from clogging.
The gas sampling tube has the performances of resisting phosphine gas corrosion and no deformation of the section, and the inner diameter is more than or equal to 2 mm; the wall thickness is more than or equal to 1 mm. The capacity of the sampling pump is required to meet the requirement that the sampling distance is more than or equal to 45 m.
The material of detection case adopts corrosion resistant plate, fixes on the wall that just detects outside the storehouse to the reply every sampling tube sets up the valve alone, and the serial number of valve should be unanimous with the sampling tube serial number of reserving in the storehouse.
The pesticide applying device mainly comprises an outside phosphine generator and a steel cylinder pesticide applying device. The pipeline is installed during fumigation, and the device can be detached and moved after fumigation. The medicine applying port is set in the positive pressure end of the circular pipeline and is suitable for two kinds of medicine applying devices.
As shown in fig. 5, the airflow circulation path of the circulation fumigation is a down-fill up-drain type circulation: phosphine gas → circulating fan → first pipe of entering storehouse → above ground cage pipe → grain pile inside → upper surface layer of grain pile → second pipe of entering storehouse → circulating fan.
Nitrogen-enriched air-conditioning process system
The nitrogen-rich controlled atmosphere process system also comprises a gas supply system and a controlled atmosphere control system. The controlled atmosphere control system comprises a nitrogen concentration detection system, a nitrogen supply control system and a nitrogen making machine room monitoring control system.
The air tightness requirement of the warehouse shall meet the regulations of 'design specification of grain horizontal warehouse' GB 50320-2001, and the air tightness of the whole horizontal warehouse shall meet the requirement that the half-life period of pressure is reduced from 500Pa to 250Pa and is more than 240 s.
The arrangement mode of the nitrogen concentration detection tube is as follows: before the grain surface is closed, 3 detection points are arranged at 3 positions on the diagonal line of the warehouse and at different grain layer depths of each position: grain heap upper strata (heap height 3/4 department), middle level (heap height 1/2 department), lower floor (heap height 1/4 department), 1 point of grain face in the middle part of storehouse space, the gas sampling tube should be the pneumatics hose of pipe diameter 4mm, and the sampling tube of burying the grain heap should take the sample connection, should paste the concentration detection stringing picture as shown in figure 8 in the sampling box.
The gas measuring point arrangement requirement is as follows: the No. 1-9 air measuring points are positioned on the diagonal line of the warehouse and are about 3m away from the two walls by 1-3; 7-9 air measuring points are 7m or so away from the two walls; 1. the 4 and 7 gas measuring points are positioned at the stack height 3/4; 2. the 5 and 8 gas measuring points are positioned at the stack height 1/2; 3. the 6 and 9 gas measuring points are positioned at the stack height 1/4; the point 10 is located in the middle of the balloon space. The gas sampling tube is preferably an air pressure hose with a tube diameter of 4 mm.
According to the grain condition and the air tightness of the warehouse, the controlled atmosphere storage and the controlled atmosphere disinsection are completed, which is as follows.
And (7) modified atmosphere storage. For the insect-free grains, when the temperature of the grains on the surface layer is raised to 25 ℃, the aeration is started, and the nitrogen concentration in the grain pile is maintained to be 90-95 percent.
② air-conditioning insect prevention. For the grain without insect basically, when the temperature of the grain on the surface layer is raised to 25 ℃, the aeration is started, and the nitrogen concentration in the grain pile is maintained to be about 95 percent.
③ regulating atmosphere to kill pests. For insect grains, when the conditions allow, the insect killing treatment is carried out in time with the nitrogen concentration of more than 98 percent for not less than 28 days, and after the insect killing is finished, the concentration is maintained to naturally decay.
And fourthly, timely supplementing air when the concentration of the nitrogen is lower than the process concentration.
As shown in fig. 6, the nitrogen main gas supply pipeline is connected with the warehouse inlet pipeline and independently warehoused; the air enters the grain pile from the upper part of the warehouse, the air is inflated under the film to form an air bag, and the oxygen in the space of the grain pile is replaced at equal pressure.
The inflation mode adopts an air extraction forced-ventilated replacement method, and an airflow circulation path is as follows: upper inflation-air bag swelling-forced air exhaust from a plurality of ventilation openings through a fan-the inflation is not stopped during air exhaust-the air bag is nearly disappeared-the forced air exhaust is stopped-the above process is repeated-the target concentration is reached (the nitrogen making machine is started till the target concentration is stopped).
As shown in fig. 7, when nitrogen is filled for a certain time, and the nitrogen reaches a certain concentration (generally 98%), the nitrogen generator is closed, nitrogen supply is stopped, the circulation fan is started, under the forced action of the circulation fan, the nitrogen flows from the PVC pipe on the grain surface to the circulation fan, flows through the vent along the circulation pipeline, passes through the upper cage air duct, diffuses in the grain stack, moves upward to the grain surface, and circulates again through the PVC pipe, so that the nitrogen is uniformly distributed in the grain stack.
The ball valve is used for adjusting and controlling the flowing direction of the gas in the pipeline in the two processes of filling nitrogen and internal circulation.
In conclusion, the multifunctional circulation system can control the flowing direction of gas in the pipeline through six ball valves to implement the process requirements of each system for storing grains, such as operation of internal circulation control temperature in summer and circulation fumigation and nitrogen-rich air conditioning for killing insects and insects every year, and can be realized in the multifunctional circulation system.
In the invention, the six ball valves can be replaced by six electric control valves which are controlled by a PLC or a single chip microcomputer and automatically control the opening and closing of the valves according to the process type.
A plurality of process systems are integrated on a grain depot, and the method is an important measure of a green grain protection system which meets the national conditions and market requirements of China. The circulation device allows the storehouse to apply the most suitable process system under different periods, conditions and environments, so as to achieve the purposes of controlling temperature, killing insects and killing insects, and further ensure the quality and efficiency of grain storage. The method is convenient to operate, safe and reliable in application, has huge development potential, and is worthy of wide popularization in the food industry in China.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A multifunctional circulation system is characterized by comprising a circulation device arranged outside the wall of a grain depot, a vent main pipe and a grain surface main pipe entering the grain depot, a plurality of vents penetrating through the wall of the grain depot and in-silo pipelines for communicating the vent main pipe with the vents, wherein each vent is communicated with a plurality of cage pipelines, and the circulation device comprises:
the upper end of the first warehouse inlet pipeline is communicated with the vent main pipe, and the lower end of the first warehouse inlet pipeline is sequentially connected with a first valve and a first quick connector for externally connecting process equipment;
the upper end of the second warehousing pipeline is communicated with the grain surface main pipe, and the lower end of the second warehousing pipeline is sequentially connected with a second valve and a second quick connector for externally connecting process equipment;
the first circulation pipeline is communicated with the first bin inlet pipeline through a first branch pipeline and is communicated with the second bin inlet pipeline through a second branch pipeline, wherein the first branch pipeline is provided with a third valve, and the second branch pipeline is provided with a fourth valve;
the second circulation pipeline is communicated with the first warehouse inlet pipeline through a third branch pipeline and is communicated with the second warehouse inlet pipeline through a second branch pipeline, wherein a fifth valve is arranged on the third branch pipeline, and a sixth valve is arranged on the fourth branch pipeline; and
and the air inlet of the circulating fan is communicated with the first circulating pipeline, and the air outlet of the circulating fan is communicated with the second circulating pipeline, wherein the circulating fan runs in a single direction and is switched to air circulation paths corresponding to various grain storage process systems by controlling the opening and closing of the first valve to the sixth valve, and the various grain storage process systems comprise an inner loop flow control temperature process system, a circulating fumigation process system and a nitrogen-rich air-conditioned process system.
2. The multi-functional circulation system of claim 1 wherein the first through sixth valves are manual ball valves.
3. A multi-functional circulation system according to claim 1 wherein the first through sixth valves are electrically controlled valves.
4. The multi-functional circulation system of claim 1 wherein the first, second, first to sixth valves are externally coated with a thermal insulating layer.
5. A multi-functional circulation system according to claim 1 wherein said first circulation line and said second circulation line are both located side-by-side one above the other within 1.8 meters of manually accessible height.
6. The multi-functional circulation system of claim 1 wherein the circulation fumigation process system further comprises a dosing device selected from the group consisting of an offsite phosphine generator and a steel cylinder dosing device, and a detection device comprising a gas sampling device, a detection box, a phosphine concentration detector, and a phosphine alarm.
7. The multifunctional circulation system of claim 1, wherein the nitrogen-rich controlled atmosphere process system further comprises an exhaust fan, a gas supply system and a controlled atmosphere control system, wherein the exhaust fan is used for forcibly exhausting gas from the vent, and the controlled atmosphere control system comprises a nitrogen concentration detection system, a nitrogen gas supply control system and a nitrogen making machine room monitoring control system.
8. The multifunctional circulation system of claim 7, wherein the nitrogen-enriched controlled atmosphere process system is inflated by air extraction forced displacement, and after the inflation is finished, the circulation fan is used for circulating the gas in the bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425074.6A CN114009229A (en) | 2021-11-26 | 2021-11-26 | Multifunctional circulation system for grain storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425074.6A CN114009229A (en) | 2021-11-26 | 2021-11-26 | Multifunctional circulation system for grain storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114009229A true CN114009229A (en) | 2022-02-08 |
Family
ID=80066783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111425074.6A Pending CN114009229A (en) | 2021-11-26 | 2021-11-26 | Multifunctional circulation system for grain storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114009229A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|---|---|---|
| BR9303857A (en) * | 1993-09-16 | 1995-05-02 | Joao Carlos Leonardelli | Dryer-dehumidifier for grains, leaves and fruits |
| CN2534130Y (en) * | 2002-03-26 | 2003-02-05 | 郑州未来粮油机械工程有限公司 | Multifunctional circulation ventilating fumigator for barn |
| CN104541802A (en) * | 2014-12-05 | 2015-04-29 | 浙江省粮食局直属粮油储备库 | Air net system based on grain storage |
| CN211020107U (en) * | 2019-12-04 | 2020-07-17 | 中央储备粮莆田直属库有限公司 | Circulation fumigation system and granary circulation fumigation system |
| CN111758773A (en) * | 2020-07-17 | 2020-10-13 | 中国储备粮管理集团有限公司西安分公司 | Room type grain storage method |
-
2021
- 2021-11-26 CN CN202111425074.6A patent/CN114009229A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9303857A (en) * | 1993-09-16 | 1995-05-02 | Joao Carlos Leonardelli | Dryer-dehumidifier for grains, leaves and fruits |
| CN2534130Y (en) * | 2002-03-26 | 2003-02-05 | 郑州未来粮油机械工程有限公司 | Multifunctional circulation ventilating fumigator for barn |
| CN104541802A (en) * | 2014-12-05 | 2015-04-29 | 浙江省粮食局直属粮油储备库 | Air net system based on grain storage |
| CN211020107U (en) * | 2019-12-04 | 2020-07-17 | 中央储备粮莆田直属库有限公司 | Circulation fumigation system and granary circulation fumigation system |
| CN111758773A (en) * | 2020-07-17 | 2020-10-13 | 中国储备粮管理集团有限公司西安分公司 | Room type grain storage method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111758773B (en) | House type grain storage method | |
| CN111670948B (en) | Barrel type grain storage method | |
| CN104871747A (en) | Low-temperature grain storage method for low-temperature barn | |
| KR102154666B1 (en) | Vinyl house with underground heat storage space structure | |
| CN111670697A (en) | Room type storehouse integrated grain storage system | |
| CN114009229A (en) | Multifunctional circulation system for grain storage | |
| CN212970806U (en) | Granary with refrigeration and temperature control functions in granary | |
| CN204678577U (en) | A kind of low temperature silo Intelligent refrigeration system | |
| CN216292226U (en) | Multifunctional circulation system for grain storage | |
| CN103785599B (en) | Electrode slice/battery is anhydrated drying equipment and method | |
| CN113748855A (en) | Grain storage system temperature control device, grain storage system and control method | |
| CN207505482U (en) | It is a kind of to prevent the silo that grain is affected by the external environment | |
| CN111512799A (en) | Granary with internal refrigeration and temperature control functions and temperature control method | |
| CN208639053U (en) | A kind of chain adjusting safety granary of computer | |
| CN103375864A (en) | Evaporative cooling, nighttime cold radiation, cold storage, ventilation and air conditioning system for potato warehouse | |
| CN201781913U (en) | Circulation fumigating system for granary | |
| CN215380038U (en) | Store up grain system temperature regulating device, store up grain system | |
| CN210053933U (en) | Double-fan integrated circulation grain storage system | |
| CN212393282U (en) | Barrel type storehouse integrated grain storage system | |
| CN203378301U (en) | Evaporative cooling, cold accumulation and ventilation air conditioning system suitable for potato warehouse | |
| CN2534130Y (en) | Multifunctional circulation ventilating fumigator for barn | |
| CN209710779U (en) | A kind of silo dynamic gas temperature and humidity adjustment system | |
| CN220830888U (en) | Suction type local breeze circulation green grain storage temperature control system of circulating fan | |
| CN216775986U (en) | Air-conditioning grain storage underground bin | |
| CN208821601U (en) | A kind of segmentation circulation fumigating system of Internet of Things silo |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |