CN111189245A - Special air conditioning device of frequency conversion constant temperature and humidity granary - Google Patents
Special air conditioning device of frequency conversion constant temperature and humidity granary Download PDFInfo
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- CN111189245A CN111189245A CN202010143069.5A CN202010143069A CN111189245A CN 111189245 A CN111189245 A CN 111189245A CN 202010143069 A CN202010143069 A CN 202010143069A CN 111189245 A CN111189245 A CN 111189245A
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- connecting pipe
- humidity
- temperature
- finned
- constant
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
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- 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
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- 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
- A23B9/10—Freezing; Subsequent thawing; Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Abstract
The invention provides a special air conditioning device for a variable-frequency constant-temperature constant-humidity granary, which comprises a scroll compressor, a finned condenser, a liquid storage tank, a drying filter, a liquid sight glass, a stop valve, a first electromagnetic valve, a thermal expansion valve and an air processing mechanism, wherein the scroll compressor is sequentially connected with the finned condenser, the liquid storage tank, the drying filter, the liquid sight glass, the stop valve, the first electromagnetic valve, the thermal expansion valve and the; the grain drying machine is simple in structure and complete in function, can adjust the humidity of air while keeping the low temperature of grains, plays a role in keeping the grains constant in temperature and humidity, protects the grains from water loss, and can select different constant temperature and constant humidity functions according to different use conditions; meanwhile, when the unit dehumidifies, the method for improving the relative humidity of the air by using the supercooling heat does not need to consume extra power, so that the whole operation of the device is more energy-saving.
Description
Technical Field
The invention relates to the technical field of grain air conditioning, in particular to a special air conditioning device for a variable-frequency constant-temperature constant-humidity granary.
Background
At present, low-temperature storage of grains becomes a trend, and the low-temperature storage is beneficial to improving the quality of grains, preventing insect damage, reducing storage loss and the like; the low-temperature grain storage equipment adopted at present mainly comprises a grain cooler for cooling grain piles and a temperature control unit for the upper space of grain surfaces; the two kinds of equipment have the function of cooling, but have no effective control on air humidity, and when the equipment is cooled, the equipment also removes moisture in the air, causes the dehydration of grains, can lead to the loss of grains, reduces the grain storage benefit and influences the quality of the grains.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide the special air conditioning device for the variable-frequency constant-temperature constant-humidity granary, which has the advantages of simple structure and complete functions, can adjust the humidity of air while keeping the low temperature of grains, and solves the problems that the air humidity cannot be adjusted and the grains are easy to lose water when low-temperature grain storage equipment is cooled.
In order to solve the technical problems, the invention adopts the following technical scheme:
a special air conditioning device for a variable-frequency constant-temperature constant-humidity granary comprises a scroll compressor, a finned condenser, a liquid storage tank, a drying filter, a liquid viewing mirror, a stop valve, a first electromagnetic valve, a thermal expansion valve, an air processing mechanism and a control device, wherein the scroll compressor is sequentially communicated with the finned condenser, the liquid storage tank, the drying filter, the liquid viewing mirror, the stop valve, the first electromagnetic valve, the thermal expansion valve and the air processing mechanism through a first connecting pipe;
the air treatment mechanism comprises a shell, and a finned evaporator, a finned subcooler, an ultrasonic humidifier and an axial flow centrifugal blower which are sequentially and internally arranged on the shell, wherein one end of the shell is provided with an air outlet corresponding to an air outlet of the axial flow centrifugal blower, the other end of the shell is provided with an air inlet, the air inlet is provided with a temperature and humidity sensor, the finned evaporator is connected with the scroll compressor through a second connecting pipe, a third connecting pipe communicated with the finned subcooler is arranged on the first connecting pipe between the first electromagnetic valve and the stop valve, a second electromagnetic valve is arranged on the third connecting pipe, and a fourth connecting pipe communicated with the finned subcooler is arranged on the first connecting pipe between the first electromagnetic valve and the thermostatic expansion valve;
the control device comprises a control box and a PLC (programmable logic controller) arranged in the control box, wherein the scroll compressor, the finned condenser, the first electromagnetic valve, the second electromagnetic valve, the thermal expansion valve, the temperature and humidity sensor, the finned evaporator, the finned subcooler, the ultrasonic humidifier and the axial flow centrifugal blower are electrically connected with the PLC.
Preferably, an axial flow fan is further arranged on the finned condenser.
Preferably, a pressure controller is further arranged on the first connecting pipe, and the pressure controller is electrically connected with the PLC.
Preferably, the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all copper pipes.
The invention has the beneficial effects that: the grain drying machine is simple in structure and complete in function, can adjust the humidity of air while keeping the low temperature of grains, plays a role in keeping the grains constant in temperature and humidity, protects the grains from water loss, and can select different constant temperature and constant humidity functions according to different use conditions; meanwhile, when the unit dehumidifies, the method for improving the relative humidity of the air by using the supercooling heat does not need to consume extra power, so that the whole operation of the device is more energy-saving.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a frequency-conversion constant-temperature constant-humidity granary-dedicated air conditioning device provided by an embodiment of the present invention.
Description of reference numerals:
the system comprises a scroll compressor 1, a finned condenser 2, a liquid storage tank 3, a drying filter 4, a liquid viewing mirror 5, a stop valve 6, a solenoid valve 7, a thermostatic expansion valve 8, a shell 9, a temperature and humidity sensor 10, a finned evaporator 11, a finned subcooler 12, an ultrasonic humidifier 13, an axial flow centrifugal blower 14, an air inlet 15, an air outlet 16, a control box 17, an axial flow fan 18, a solenoid valve 19, a connecting pipe 20, a connecting pipe 21, a connecting pipe III, a connecting pipe 22, a connecting pipe IV, a connecting pipe 23, a connecting pipe II and a pressure controller 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "in", "upper", "lower", "lateral", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, a special air conditioning device for variable-frequency constant-temperature constant-humidity granary comprises a scroll compressor 1, a finned condenser 2, a liquid storage tank 3, a drying filter 4, a liquid viewing mirror 5, a stop valve 6, a first electromagnetic valve 7, a thermostatic expansion valve 8, an air processing mechanism and a control device, wherein the scroll compressor 1 is communicated with the finned condenser 2, the liquid storage tank 3, the drying filter 4, the liquid viewing mirror 5, the stop valve 6, the first electromagnetic valve 7, the thermostatic expansion valve 8 and the air processing mechanism in sequence through a first connecting pipe 20, the scroll compressor 1 is used for generating high-temperature high-pressure refrigerant gas, the finned condenser 2 is also provided with an axial flow fan 18, the finned condenser 2 exchanges heat with outdoor air through the axial flow fan 18 and converts the high-temperature high-pressure refrigerant gas into high-temperature medium-pressure refrigerant liquid, the liquid storage tank 3 is used for storing medium-temperature high-pressure refrigerant liquid flowing out of the finned condenser 2, the drying filter 4 can dry and filter moisture in the flowing refrigerant to prevent the refrigerant from being blocked by ice due to excessive moisture, the flow rate of the refrigerant can be observed and the moisture of the refrigerant can be displayed through the liquid viewing mirror 5, the stop valve 6 is used for controlling the flow of the refrigerant liquid in the first connecting pipe, and the thermostatic expansion valve 8 is used for conveying the refrigerant into the finned evaporator 11 in the air treatment mechanism.
The air treatment mechanism comprises a shell 9, and a finned evaporator 11, a finned subcooler 12, an ultrasonic humidifier 13 and an axial flow centrifugal blower 14 which are sequentially arranged in the shell 9, wherein one end of the shell 9 is provided with an air outlet 16 corresponding to an air outlet hole of the axial flow centrifugal blower 14, the other end of the shell 9 is provided with an air inlet 16, the air inlet 16 is provided with a temperature and humidity sensor 10, the finned evaporator 11 is connected with the scroll compressor 1 through a second connecting pipe 23 to convey refrigerant liquid back to the scroll compressor 1, a third connecting pipe 22 communicated with the fin-type subcooler 12 is arranged on a first connecting pipe 20 between the first electromagnetic valve 7 and the stop valve 6, a second electromagnetic valve 19 is arranged on the third connecting pipe 22, and a fourth connecting pipe 23 communicated with the fin-type subcooler 12 is arranged on a first connecting pipe 20 between the first electromagnetic valve 7 and the thermostatic expansion valve 8;
the control device comprises a control box 17 and a PLC (programmable logic controller) which is arranged in the control box 17, the scroll compressor 1, the finned condenser 2, the first electromagnetic valve 7, the second electromagnetic valve 19, the thermostatic expansion valve 8, the temperature and humidity sensor 10, the finned evaporator 11, the finned subcooler 12, the ultrasonic humidifier 13 and the axial flow centrifugal blower 14 are electrically connected with the PLC, and all the components can be controlled by the PLC to be correspondingly matched.
Further, a pressure controller 24 is further arranged on the first connecting pipe 20, the pressure controller 24 is used for providing pressure for the first connecting pipe 20, so that the refrigerant is controlled to be correspondingly conveyed in each connecting pipe, the pressure controller 24 is electrically connected with the PLC, and the pressure controller 24 can be controlled by the PLC to correspondingly work.
Furthermore, the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all copper pipes.
When the device is used, the required temperature and humidity are set in the PLC, when the air in the granary needs to be refrigerated and dehumidified, high-temperature and high-pressure refrigerant gas from the scroll compressor 1 enters the finned condenser 2 through the copper pipe, heat exchange is carried out between the high-temperature and high-pressure refrigerant gas and outdoor air through the axial flow fan 18 in the finned condenser 2, the high-temperature and high-pressure refrigerant gas is changed into medium-temperature and high-pressure refrigerant liquid after heat is released, the medium-temperature and high-pressure refrigerant liquid is stored in the liquid storage tank 3 through the copper pipe, meanwhile, the temperature and humidity sensor 10 detects the temperature and humidity of the air at the air inlet and transmits the detected values to the PLC, if the detected temperature and humidity are higher than the set value of the PLC, the PLC controls the second electromagnetic valve 19 to be closed, the first electromagnetic valve 7 and the thermal expansion valve 8 to be opened, the refrigerant, the refrigerant liquid is changed into low-temperature low-pressure refrigerant liquid, and after the heat of the air from the granary is absorbed, the refrigerant gas is changed into low-temperature low-pressure refrigerant gas and returns to the scroll compressor 1 through the second connecting pipe 23, so that the refrigerant is recycled; air from the granary enters the shell through the air inlet 15, is cooled and dehumidified through the finned evaporator 11, and is sent to the granary through the axial flow centrifugal blower 14, so that refrigeration and dehumidification of the granary air are completed;
when the temperature detected by the air in the granary is higher than a set value, the humidity is lower than the set value, and refrigeration and humidification are needed, high-temperature and high-pressure refrigerant gas from the scroll compressor 1 enters the finned condenser 2 through the copper pipe, heat exchange is carried out between the high-temperature and high-pressure refrigerant gas and outdoor air through the axial flow fan 18 in the finned condenser 2, the high-temperature and high-pressure refrigerant gas is changed into medium-temperature and high-pressure refrigerant liquid after heat is released, the medium-temperature and high-pressure refrigerant liquid is stored in the liquid storage tank 3 through the copper pipe, at the moment, the PLC controls the first electromagnetic valve 7 to be closed, the second electromagnetic valve 19 and the thermostatic expansion valve 8 to be opened, the refrigerant in the liquid storage tank 3 sequentially passes through the drying filter 4, the liquid sight glass 5, the stop valve 6 and the second electromagnetic valve 19 to enter the finned subcoole, the refrigerant in the finned subcooler 12 enters the finned evaporator 11 through the fourth connecting pipe 22 and the thermostatic expansion valve 8, becomes low-temperature and low-pressure refrigerant liquid, absorbs the heat of the air from the granary, becomes low-temperature and low-pressure refrigerant gas, and returns to the scroll compressor 1 through the second connecting pipe 23, so that the refrigerant is recycled; air from the granary passes through the fin-type evaporator 11 and then passes through the fin-type subcooler 12 to be heated, the ultrasonic humidifier 13 is humidified, and the air is sent into the granary through the axial flow centrifugal blower to finish the refrigeration and humidification of the granary air.
The invention has simple structure and complete functions, can adjust the humidity of air while keeping the low temperature of the grain, plays a role in keeping the grain constant in temperature and humidity, protects the grain from water loss, and can select different constant temperature and constant humidity functions according to different use conditions; meanwhile, when the unit dehumidifies, the method for improving the relative humidity of the air by using the supercooling heat does not need to consume extra power, so that the whole operation of the device is more energy-saving.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A special air conditioning device for a variable-frequency constant-temperature constant-humidity granary is characterized by comprising a scroll compressor, a finned condenser, a liquid storage tank, a drying filter, a liquid viewing mirror, a stop valve, a first electromagnetic valve, a thermal expansion valve, an air processing mechanism and a control device, wherein the scroll compressor is sequentially communicated with the finned condenser, the liquid storage tank, the drying filter, the liquid viewing mirror, the stop valve, the first electromagnetic valve, the thermal expansion valve and the air processing mechanism through a first connecting pipe;
the air treatment mechanism comprises a shell, and a finned evaporator, a finned subcooler, an ultrasonic humidifier and an axial flow centrifugal blower which are sequentially and internally arranged on the shell, wherein one end of the shell is provided with an air outlet corresponding to an air outlet of the axial flow centrifugal blower, the other end of the shell is provided with an air inlet, the air inlet is provided with a temperature and humidity sensor, the finned evaporator is connected with the scroll compressor through a second connecting pipe, a third connecting pipe communicated with the finned subcooler is arranged on the first connecting pipe between the first electromagnetic valve and the stop valve, a second electromagnetic valve is arranged on the third connecting pipe, and a fourth connecting pipe communicated with the finned subcooler is arranged on the first connecting pipe between the first electromagnetic valve and the thermostatic expansion valve;
the control device comprises a control box and a PLC (programmable logic controller) arranged in the control box, wherein the scroll compressor, the finned condenser, the first electromagnetic valve, the second electromagnetic valve, the thermal expansion valve, the temperature and humidity sensor, the finned evaporator, the finned subcooler, the ultrasonic humidifier and the axial flow centrifugal blower are electrically connected with the PLC.
2. The air conditioning device special for the variable-frequency constant-temperature constant-humidity granary according to claim 1, wherein an axial flow fan is further arranged on the fin type condenser.
3. The air conditioning device special for the variable-frequency constant-temperature and constant-humidity granary as claimed in claim 1, wherein a pressure controller is further arranged on the first connecting pipe, and the pressure controller is electrically connected with the PLC controller.
4. The air conditioning device special for the variable-frequency constant-temperature and constant-humidity granary according to claim 1, wherein the first connecting pipe, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are all copper pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143069.5A CN111189245A (en) | 2020-03-04 | 2020-03-04 | Special air conditioning device of frequency conversion constant temperature and humidity granary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010143069.5A CN111189245A (en) | 2020-03-04 | 2020-03-04 | Special air conditioning device of frequency conversion constant temperature and humidity granary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111189245A true CN111189245A (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010143069.5A Pending CN111189245A (en) | 2020-03-04 | 2020-03-04 | Special air conditioning device of frequency conversion constant temperature and humidity granary |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111189245A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112616456A (en) * | 2020-12-04 | 2021-04-09 | 浙江青风环境股份有限公司 | Special energy-saving air conditioner for granary |
| CN112682975A (en) * | 2021-01-07 | 2021-04-20 | 云南楚雄国家粮食储备库 | Special air conditioning unit of ladder cooling grain face |
| CN113892351A (en) * | 2021-09-14 | 2022-01-07 | 徐州市海涛制冷设备有限公司 | Air energy cold and hot fan granary structure |
-
2020
- 2020-03-04 CN CN202010143069.5A patent/CN111189245A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112616456A (en) * | 2020-12-04 | 2021-04-09 | 浙江青风环境股份有限公司 | Special energy-saving air conditioner for granary |
| CN112682975A (en) * | 2021-01-07 | 2021-04-20 | 云南楚雄国家粮食储备库 | Special air conditioning unit of ladder cooling grain face |
| CN113892351A (en) * | 2021-09-14 | 2022-01-07 | 徐州市海涛制冷设备有限公司 | Air energy cold and hot fan granary structure |
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