CN207741406U - A kind of grain storage freezer automatically adjusting interior cycle - Google Patents
A kind of grain storage freezer automatically adjusting interior cycle Download PDFInfo
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- CN207741406U CN207741406U CN201721538053.4U CN201721538053U CN207741406U CN 207741406 U CN207741406 U CN 207741406U CN 201721538053 U CN201721538053 U CN 201721538053U CN 207741406 U CN207741406 U CN 207741406U
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Abstract
The utility model is related to a kind of grain storage freezer automatically adjusting interior cycle, the first temperature sensor, second temperature sensor, controller and air current circulation are set in grain storage freezer；The above position of grain face is arranged in grain storage freezer in first temperature sensor, and the second temperature sensor is arranged inside grain heap, and first temperature sensor and the second temperature sensor are electrically connected with the input terminal of the controller respectively；Controller starts interior cycle automatically according to the temperature detected, the air of grain face top higher temperature is taken out into lower grain face lower part, air-flow permeates up out grain face from grain face bottom, the cold air of grain storage freezer can be carried out using air current circulation by internal cycle, reduce grain face and the temperature difference inside grain heap, grain heap not will produce moisture condensation, the occurrence of going mouldy so as to avoid grain, low-temperature grain-storage is carried out, grain, which is not easy ageing, can also keep good moisture, improve stored grain quality.
Description
Technical field
This application involves foodstuff preservation fields, and in particular to a kind of grain storage freezer automatically adjusting interior cycle.
Background technology
China is Chan Liang big countries, and it is great to carry out foodstuff preservation work meaning, relationship military supplies foodstuff for the people, also relationship national security and
Social stability.Grain security storage is a global problem, according to the investigation statistics of FAO (Food and Agriculture Organization of the United Nation), the annual grain in the whole world
Food goes mouldy and the losses such as insect pest are the 8% of grain yield.Foodstuff preservation work is carried out, three elements are depended on：First, to have good
A series of good warehouse and auxiliary facility, second is that have relatively advanced storage keeping technologies, third, to there is the pipe of a set of science
Reason method.
The storage technology of grain has following several in the related technology：
The first, low-temperature grain-storage technology carries out emergency processing or without low temperature in low temperature season tissue conveying grain into storehouse in summer
The grain depot in season cools down grain using refrigeration equipment；
The second, air-conditioning storing grain technology carries out gas control grain reservation using closed silo or with plastic film tent, passes through life
The breathing of object is depleted by oxygen, and accumulates correspondingly high carbon dioxide, reaches the grain storage environment of anoxic.Or artificial punching
Enter nitrogen or carbon dioxide, so that environmental gas is reached the nitrogen of high concentration, CO2 vacuum causes space oxygen content to be down to hypoxemia or exhausted
Oxygen.
Grain storage space gases mainly are evacuated to form negative pressure by third, vacuum grain storage technology, vacuum grain storage using vacuum equipment
State causes space oxygen content to be down to hypoxemia or anoxybiotic, to reach the technology for inhibiting entomophthora, keeping stored grain quality.
Relevant View of Grain Storage Technoiogy has the following problems：
The first, moisture loss is than more serious during foodstuff preservation, grain in storage if in storehouse air phase
To humidity less than the relative humidity corresponding to grain equilibrium water conten, grain will lose moisture；If carrying out force ventilation, moisture
Loss will be more serious.The loss of grain moisture content not only directly affects the economic benefit of enterprise, it is often more important that can influence grain storage
Edible quality and processing quality.
The second, high-moisture grain is continuously increased, and new challenge is brought to grain management, in the main drying side of southern rice
Formula is traditional drying, and labor intensity is big；With the relieving of grain market, grain purchases come into seller's market, at some
Place, peasant no longer shine grain, also no longer cleaned grain, and grain depot is caused to purchase part high-moisture grain.Especially in southern area,
Rice harvest season just stitch temperature it is higher when, new requirement is proposed to View of Grain Storage Technoiogy.
In third, existing low-temperature grain-storage technology, there are cold and hot interfaces between grain heap different parts, in summer existing grain
Air themperature in library close to ceiling can reach 40 degree to 50 degree, very big with the temperature difference inside grain heap, and grain heap moisture condensation is very tight
Weight, leads to going mouldy for grain large area, needs manually to carry out turning over grain, on the one hand progress air conditioner refrigerating of taking emergency measures increases
Management cost, another aspect force ventilation accelerate moisture loss during foodstuff preservation, influence the edible quality of grain storage and add
Work quality.It inevitably will appear the ageing of grain and problem of going mouldy in existing grain depot grain storage, this problem always exists
And annoying those skilled in the art.
Utility model content
Applicant has started a kind of new low-temperature grain-storage technology, at least one by long-term effort and continuous experiment
Determine in degree to overcome the problems, such as present in the relevant technologies, the application provides a kind of grain storage freezer automatically adjusting interior cycle, has
Effect solves existing for existing low-temperature grain-storage warehouse not foot point, while can also carry out cycle in automatically and adjust.
In order to achieve the above object, the utility model adopts the following technical solution：A kind of grain storage automatically adjusting interior cycle
Freezer, storage has grain in the grain storage freezer, the grain storage freezer include the first temperature sensor, second temperature sensor,
Controller and air current circulation；The above position of grain face is arranged in grain storage freezer in first temperature sensor, for detecting
Air themperature more than grain face, the second temperature sensor is arranged inside grain heap, for detecting the temperature inside grain heap；Institute
It states the first temperature sensor and the second temperature sensor is electrically connected with the input terminal of the controller respectively；
The controller controls the operating of the air current circulation according to the temperature of the first temperature sensor received；
Or
The controller controls the air-flow according to the first temperature sensor and the temperature gap of second temperature sensor and follows
The operating of loop device.
Further, the grain storage freezer is closed grain storage freezer, and the grain storage freezer is arranged in grain storage warehouse.
Further, it is used at least provided with a set of air current circulation, the air current circulation in the grain storage freezer
Internal cycle is carried out in the gas in grain storage freezer more than grain face is extracted into grain bottom.
Further, the air current circulation includes circulating fan, air inlet pipe and an air outlet pipe；One end of the air inlet pipe
It extends in the air above grain face, another air flow inlet end for terminating at the circulating fan of the air inlet pipe；It is described go out
One end of tracheae is connected on the airflow outlet end of the circulating fan, and the other end of the escape pipe extends to grain bottom；It is described
Circulating fan is electrically connected with the controller.
Further, first section of setting is arranged on the bottom of the grain storage freezer, the air inlet pipe in the circulating fan
Only valve, first shut-off valve are electrically connected with the controller.
Further, a wind pushing mechanism for being set on grain storage freezer bottom is also included at least；The wind pushing mechanism
Including pressure fan, draught distributing box and ventilated cage；The blower setting is external in grain storehouse；The draught distributing box and the ventilated cage are set
It sets in grain storage cool house internal；The pressure fan is connected to by pipeline with the draught distributing box, and the ventilated cage, which is connected to, described divides wind
On case, the ventilated cage is rows of to be arranged in grain storage freezer bottom；The pressure fan is electrically connected with the controller；
Further, setting air-supply shut-off valve on the pipeline.
Further, the air-supply shut-off valve is electric check valve, and the air-supply shut-off valve is electrically connected with the controller.
Further, the grain storage freezer includes freezer wall, freezer ceiling and grain guard board, the grain storage cool house internal
It is equipped with the first insulating layer on freezer wall face, the second heat preservation is equipped on the freezer ceiling face of the grain storage cool house internal
Layer, the grain guard board, which attaches, to be arranged on first insulating layer.
Further, an air hole is at least offered on the grain storage freezer, the air hole is positioned close to freezer
On the freezer wall of ceiling.
The utility model uses above technical scheme, and the air themperature of grain face or more is detected by the first temperature sensor,
The temperature inside grain heap is detected by second sensor, controller is filled according to the temperature detected come the automatic airflow circulating that starts
It sets, the air current circulation in the utility model is used to the gas in grain storage freezer more than grain face being extracted into the progress of grain bottom
Portion recycles.And in the bottom of grain storage freezer at least provided with a set of wind pushing mechanism.Directly pass through wind pushing mechanism in winter
Convey 0 degree temperature cold wind below into grain storage freezer, the refrigeration of the grain of storage got up, due to provided with closed freezer and
Outside air is isolated, and especially in summer, hot friendship can be effectively prevented using low-temperature grain-storage freezer provided by the utility model
Change, the grain of storage allowed to be always held at 0 degree hereinafter, grain heap is closed is stored in freezer, not with extraneous hot air, simultaneously
Controller starts interior cycle automatically according to the temperature detected, and the air of grain face top higher temperature is taken out lower grain face lower part,
Air-flow permeates up out grain face from grain face bottom, and the cold air of grain storage freezer can be carried out to internal follow using air current circulation
Ring reduces grain face and the temperature difference inside grain heap, and grain heap not will produce moisture condensation, the occurrence of going mouldy so as to avoid grain, into
Row low-temperature grain-storage, grain, which is not easy ageing, can also keep good moisture, improve stored grain quality.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The application can be limited.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Fig. 1 is the structural schematic diagram of existing silo.
Fig. 2 is the grain storage refrigeration storage system structural schematic diagram that the utility model can automatically adjust interior cycle；
Fig. 3, which is the utility model, can automatically adjust one of grain storage freezer structural schematic diagram of interior cycle；
Fig. 4 is the grain storage freezer second structural representation that the utility model can automatically adjust interior cycle；
Fig. 5 is the grain storage freezer air-supply structure schematic diagram that the utility model can automatically adjust interior cycle；
Fig. 6 is the grain storage freezer inner circulation structure schematic diagram that the utility model can automatically adjust interior cycle.
In figure：1, supply air system；2, grain face；3, transom；4, the first temperature sensor；5, second temperature sensor；6、
Controller；7, air current circulation；8, air inlet pipe；9, escape pipe；10, the first shut-off valve；11, wind pushing mechanism；12, pressure fan；
13, draught distributing box；14, ventilated cage；15, air-supply shut-off valve；16, freezer wall；17, freezer ceiling；18, grain guard board；19, it first protects
Warm layer；20, the second insulating layer；21, air hole；23, grain storage freezer；24, grain storage warehouse；25, circulating fan；
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of consistent device of some aspects be described in detail in claims, the application.
Fig. 1 is the structural schematic diagram of existing grain storehouse, and present way is directly to pass through in silo tissue storage to silo
Supply air system 1 is blown to grain heap, and transom 3, summer grain face 2 and warehouse ceiling are offered on the silo above grain face 2
Between temperature can reach 40-50 degree, grain store during because circulation ventilation level is poor, be easy moisture condensation, cause in silo
Grain cannot be permanent preservation, be susceptible to grain ageing and the problem of go mouldy.
As shown in Figures 2 and 3, the utility model provides a kind of grain storage freezer automatically adjusting interior cycle, the grain storage
Storage has grain, the grain storage freezer gentle including the first temperature sensor 4, second temperature sensor 5, controller 6 in freezer
Flow circulator 7；The above position of grain face is arranged in grain storage freezer in first temperature sensor 4, for detecting grain face or more
Air themperature, the second temperature sensor 5 be arranged inside grain heap, for detecting the temperature inside grain heap；Described first
Temperature sensor 4 and the second temperature sensor 5 are electrically connected with the input terminal of the controller 6 respectively；
The controller 6 controls the fortune of the air current circulation 7 according to the temperature of the first temperature sensor 4 received
Turn；Or
The controller 6 controls the air-flow according to the first temperature sensor 4 and the temperature gap of second temperature sensor 5
The operating of circulator 7.
Air current circulation 7 is started according to the temperature value detected in the utility model, by grain face top higher temperature
Air take out lower grain face lower part, air-flow is permeated up out grain face from grain face bottom, can be realized automatically using air current circulation 7
Change the cold air easy to control by grain storage freezer and carry out internal cycle, reduces grain face and the temperature difference inside grain heap, grain heap will not produce
Raw moisture condensation, the occurrence of going mouldy so as to avoid grain.
Grain storage freezer described in the present embodiment is closed grain storage freezer, and the grain storage freezer 23 is arranged in grain storage warehouse 24
In.It is used for grain storage freezer at least provided with a set of air current circulation 7, the air current circulation 7 in the grain storage freezer
Gas more than middle grain face is extracted into grain bottom and carries out internal cycle.
As shown in figure 3, air current circulation 7 described in the present embodiment includes circulating fan 25, air inlet pipe 8 and escape pipe 9；
One end of the air inlet pipe 8 extends in the air above grain face, and the another of the air inlet pipe 8 terminates at the circulating fan
Air flow inlet end；One end of the escape pipe 9 is connected on the airflow outlet end of the circulating fan, the other end of the escape pipe 9
Extend to grain bottom；The circulating fan is electrically connected with the controller 6.
Circulating fan described in the present embodiment is arranged is arranged first on the bottom of the grain storage freezer, the air inlet pipe 8
Shut-off valve 10, first shut-off valve 10 are electrically connected with the controller 6.First shut-off valve 10 can be electric check valve.
As shown in figure 3, as a preferred embodiment, the grain storage provided in this embodiment for automatically adjusting interior cycle
Freezer also includes at least a wind pushing mechanism 11 for being set on grain storage freezer bottom；The wind pushing mechanism 11 includes pressure fan
12, draught distributing box 13 and ventilated cage 14；The setting of the pressure fan 12 is external in grain storehouse；The draught distributing box 13 and the ventilated cage 14
It is arranged in grain storage cool house internal；The pressure fan 12 is connected to by pipeline with the draught distributing box 13, and the ventilated cage 14 is connected to
On the draught distributing box 13, the ventilated cage 14 is rows of to be arranged in grain storage freezer bottom；The pressure fan 12 and the controller 6
Electrical connection；
Setting air-supply shut-off valve 15 on pipeline described in the present embodiment.The air-supply shut-off valve 15 is electric check valve, institute
Air-supply shut-off valve 15 is stated to be electrically connected with the controller 6.
As shown in figure 4, grain storage freezer described in the grain storage freezer provided in this embodiment for automatically adjusting interior cycle includes
Freezer wall 16, freezer ceiling 17 and grain guard board 18 are equipped with the first guarantor on 16 face of freezer wall of the grain storage cool house internal
Warm layer 19, the second insulating layer 20 is equipped on 17 face of freezer ceiling of the grain storage cool house internal, and the grain guard board 18 attaches
It is arranged on first insulating layer 19.An air hole 21 is at least offered on the grain storage freezer, the air hole 21 is set
It sets on the freezer wall 16 close to freezer ceiling 17.The air hole 21 is positioned close to the freezer wall 16 of freezer ceiling 17
On.Air hole 21 forms current path with the conjunction of wind pushing mechanism 11.
The operation principle of the utility model is described as follows now：
As shown in figure 5, conveying cold air in winter to grain storage freezer, operating method：Close the first shut-off valve 10；Opening is sent
Wind shut-off valve 15 and air hole 21 start pressure fan 12 and the cold air of outdoor winter dryness are delivered in grain storage freezer, utilize
Cold air convection cools down grain storage.It should be noted that being specifically reduced to the subzero several years is determined according to outdoor temperature at that time
It is fixed, if for example, outdoor temperature is minus 20 degrees, the temperature of grain storage can be reduced to by convection current by minus 20 degrees, northeast winter
Temperature outside season room easily reaches minus 20 degrees.
It (is not necessarily to drop to minus 20 degrees, send when the grain of grain storage freezer storage is also reduced to minus 20 degrees or so
Select suitable temperature according to actual conditions when wind, for example, subzero 10 degree to subzero 30 degree can), it is out-of-blast
Machine 12 closes air-supply shut-off valve 15 and air hole 21, and grain storage freezer is made to form a closed freezer.
As shown in fig. 6, when spring in the coming year or summer, when the temperature of grain face is at 0 degree to subzero 3 degree, this certain model
Enclosing can set, and could be provided as 0 degree to subzero 5 degree either inside the temperature and grain heap of other ranges or grain face
Temperature difference is at 5 degree or so, so that it may to start air current circulation 7.
It specifically operates and is：Air-supply shut-off valve 15 and air hole 21 are closed, the first shut-off valve 10 is opened, starts circulated air
The air of higher temperature more than grain face in grain storage freezer is transported to grain face bottom, by grain face bottom by machine by circulating fan
Upward naturally osmotic is followed to neutralize the cold air inside the air of grain face temperature higher above and grain heap by interior
Ring reduces the temperature difference, avoids condensation trouble.
In fact, from the point of view of according to the operational circumstances of reality, do not opened as long as the temperature of grain face is maintained at subzero
Dynamic air current circulation 7.But in order to insure when the temperature in grain storage freezer in grain face is higher than subzero 5 degree, so that it may to drive gas
Circulator 7 is flowed, the gas in grain storage freezer more than grain face, which is extracted into grain bottom, carries out internal cycle.It is filled using airflow circulating
The cold air of grain storage freezer can be carried out internal cycle by setting 7, reduce grain face and the temperature difference inside grain heap, grain heap not will produce knot
Dew, the occurrence of going mouldy so as to avoid grain.
Certainly according to from the point of view of the case where operation, in the cold wind that Northeast Cold Area, winter last year pour into, temperature can be with
It is always held at subzero, until winter in the coming year, but it is originally freezer to be promoted for the whole country, such as at the middle part of motherland
Or southern area, a spare refrigeration fan can be set again, will be arrived by the air delivery of refrigeration using refrigeration fan
At draught distributing box 13.
The utility model detects the air themperature of grain face or more by the first temperature sensor 4, is examined by second sensor
The temperature inside grain heap is surveyed, controller 6 comes to start air current circulation 7 automatically according to the temperature detected, in the utility model
Air current circulation 7 be used to the gas in grain storage freezer more than grain face being extracted into grain bottom and carry out internal cycle.And it is storing up
The bottom of grain freezer is at least provided with a set of wind pushing mechanism 11.In winter directly by wind pushing mechanism 11 to grain storage freezer
0 degree of temperature cold wind below of middle conveying gets up the refrigeration of the grain of storage, due to provided with closed freezer and outside air every
From especially in summer, heat exchange can be effectively prevented using low-temperature grain-storage freezer provided by the utility model, allows storage
Grain is always held at 0 degree hereinafter, grain heap is closed is stored in freezer, not with extraneous hot air, while 6 basis of controller
The temperature detected starts interior cycle automatically, and the air of grain face top higher temperature is taken out lower grain face lower part, and air-flow is from grain face
Bottom permeates up out grain face, and the cold air of grain storage freezer can be carried out to internal cycle using air current circulation 7, reduce grain
Face and the temperature difference inside grain heap, grain heap not will produce moisture condensation, the occurrence of going mouldy so as to avoid grain, carry out low temperature storage
Grain, grain, which is not easy ageing, can also keep good moisture, improve stored grain quality.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
The application can be limited.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. a kind of grain storage freezer automatically adjusting interior cycle, it is characterised in that：Storage has grain in the grain storage freezer, described
The first temperature sensor, second temperature sensor, controller and air current circulation are provided in grain storage freezer；First temperature
It spends sensor and the above position of grain face, the air themperature for detecting grain face or more, the second temperature is set in grain storage freezer
Sensor is arranged inside grain heap, for detecting the temperature inside grain heap；
First temperature sensor and the second temperature sensor are electrically connected with the input terminal of the controller respectively；
The controller controls the operating of the air current circulation according to the temperature of the first temperature sensor received；Or
The controller controls the airflow circulating according to the first temperature sensor and the temperature gap of second temperature sensor and fills
The operating set.
2. the grain storage freezer according to claim 1 for automatically adjusting interior cycle, it is characterised in that：The grain storage freezer is
Closed grain storage freezer, the grain storage freezer are arranged in grain storage warehouse.
3. the grain storage freezer according to claim 1 for automatically adjusting interior cycle, it is characterised in that：In the grain storage freezer
At least provided with a set of above air current circulation, the air current circulation is used for the gas in grain storage freezer more than grain face
It is extracted into grain bottom and carries out internal cycle.
4. the grain storage freezer according to claim 3 for automatically adjusting interior cycle, it is characterised in that：The airflow circulating dress
It sets including circulating fan, air inlet pipe and an air outlet pipe；One end of the air inlet pipe extends in the air above grain face, the air inlet
Another air flow inlet end for terminating at the circulating fan of pipe；One end of the escape pipe is connected on the air-flow of the circulating fan
The other end of outlet end, the escape pipe extends to grain bottom；The circulating fan is electrically connected with the controller.
5. the grain storage freezer according to claim 4 for automatically adjusting interior cycle, it is characterised in that：The circulating fan is set
It sets and the first shut-off valve is set on the bottom of the grain storage freezer, the air inlet pipe, first shut-off valve and the controller
Electrical connection.
6. the grain storage freezer according to any one of claims 1 to 5 for automatically adjusting interior cycle, it is characterised in that：Also extremely
Include a wind pushing mechanism for being set on grain storage freezer bottom less；
The wind pushing mechanism includes pressure fan, draught distributing box and ventilated cage；The blower setting is external in grain storehouse；Described point of wind
Case and the ventilated cage are arranged in grain storage cool house internal；The pressure fan is connected to by pipeline with the draught distributing box, the ventilation
Cage is connected on the draught distributing box, and the ventilated cage is rows of to be arranged in grain storage freezer bottom；The pressure fan and the control
Device is electrically connected.
7. the grain storage freezer according to claim 6 for automatically adjusting interior cycle, it is characterised in that：It is arranged on the pipeline
Air-supply shut-off valve.
8. the grain storage freezer according to claim 7 for automatically adjusting interior cycle, it is characterised in that：The air-supply shut-off valve
For electric check valve, the air-supply shut-off valve is electrically connected with the controller.
9. the grain storage freezer of interior cycle can be automatically adjusted according to claim 2 to 5 any one of them, it is characterised in that：It is described
Grain storage freezer includes freezer wall, freezer ceiling and grain guard board, and is equipped on the freezer wall face of the grain storage cool house internal
One insulating layer, the second insulating layer is equipped on the freezer ceiling face of the grain storage cool house internal, and the grain guard board attaches setting
On first insulating layer.
10. the grain storage freezer according to claim 8 for automatically adjusting interior cycle, it is characterised in that：The grain storage freezer
On at least offer an air hole, the air hole is positioned close on the freezer wall of freezer ceiling.
11. the grain storage freezer according to claim 6 for automatically adjusting interior cycle, it is characterised in that：It is standby to include setting one
Refrigeration fan will pass through the air delivery of refrigeration at draught distributing box using refrigeration fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538053.4U CN207741406U (en) | 2017-11-16 | 2017-11-16 | A kind of grain storage freezer automatically adjusting interior cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721538053.4U CN207741406U (en) | 2017-11-16 | 2017-11-16 | A kind of grain storage freezer automatically adjusting interior cycle |
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| Publication Number | Publication Date |
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| CN207741406U true CN207741406U (en) | 2018-08-17 |
Family
ID=63115785
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| CN201721538053.4U Active CN207741406U (en) | 2017-11-16 | 2017-11-16 | A kind of grain storage freezer automatically adjusting interior cycle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269197A (en) * | 2018-09-26 | 2019-01-25 | 北京农学院 | A kind of freezer that inner air circulates |
| CN113841517A (en) * | 2021-10-18 | 2021-12-28 | 河南西城电子科技有限公司 | Multifunctional grain storage system for granary |
-
2017
- 2017-11-16 CN CN201721538053.4U patent/CN207741406U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269197A (en) * | 2018-09-26 | 2019-01-25 | 北京农学院 | A kind of freezer that inner air circulates |
| CN113841517A (en) * | 2021-10-18 | 2021-12-28 | 河南西城电子科技有限公司 | Multifunctional grain storage system for granary |
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