CN112902572A - Integral vacuum type heat pump drying energy-saving device - Google Patents
Integral vacuum type heat pump drying energy-saving device Download PDFInfo
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- CN112902572A CN112902572A CN202110186254.7A CN202110186254A CN112902572A CN 112902572 A CN112902572 A CN 112902572A CN 202110186254 A CN202110186254 A CN 202110186254A CN 112902572 A CN112902572 A CN 112902572A
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- 238000001035 drying Methods 0.000 title claims abstract description 90
- 238000007791 dehumidification Methods 0.000 claims abstract description 10
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 15
- 238000007906 compression Methods 0.000 claims description 15
- 238000009792 diffusion process Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000004378 air conditioning Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract 1
- 230000002745 absorbent Effects 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
- F26B9/066—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
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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
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an integral vacuum type heat pump drying energy-saving device, which particularly comprises an air-conditioning heat pump system, a vacuum dehumidification system and a drying ventilation system, wherein the device carries out system design on vacuum dehumidification, heat pump circulation, cold energy recovery, hot air circulation and integrated drying to finally form an integral high-efficiency drying device, so that the drying efficiency is greatly improved, the drying cost is reduced, the problems that the conventional drying device has poor energy-saving effect, long drying time, non-uniform dried materials and unmatched drying equipment and the actual requirements of customers in the actual drying application are solved, and a large amount of drying energy use cost and drying production cost are saved for users. Can be widely applied to the technical field of drying and energy saving.
Description
Technical Field
The invention relates to an integral vacuum type heat pump drying energy-saving device, and relates to the technical field of drying energy conservation.
Background
The drying methods in the current market are basically as follows:
firstly, directly-heated drying: this mode utilizes steam heat transfer or electrical heating directly to produce hot-blast moisture of taking away, and moisture content and heat are direct to be discharged through the air exit, and this mode structure is simple relatively, and stoving temperature is higher, hardly accomplishes even stoving, and high temperature also can cause great damage to the thing of drying in addition, and the energy is with high costs simultaneously, and is not energy-conserving.
Secondly, condensing drying: the technology is based on a direct-heating drying mode, a condensing assembly is added when hot air filled with moisture is discharged, the wet hot air is condensed into liquid, then the liquid is discharged into a sewer through a drainage device, and the air cooled by drying is heated again and enters a drying device to achieve the drying purpose. The technology still has a large energy-saving space because the heat pump technology is not used.
Thirdly, heat pump drying: the heat pump type drying is realized by using reverse Carnot cycle to heat and take away water vapor to achieve the purpose of drying, mainly comprises four parts, namely an evaporator, a compressor, a condenser and an expansion valve, and a thermodynamic cycle process of evaporation (absorbing heat in the environment) → compression → condensation (releasing heat) → throttling → re-evaporation is continuously completed by working media, so that heat in a low-temperature environment is transferred to a drying device. The heat pump type drying reduces the power consumption by half or more than that of the condensing type drying and the direct heating type drying. However, when moisture is condensed and discharged in the heat pump type drying process, heat energy is wasted in the hot air cooling process, and therefore, a large energy-saving space is still provided.
In addition, in the actual drying process, various defects or problems frequently occur, such as mismatching of the drying equipment and the actual requirements of customers, uneven drying of materials, poor energy-saving effect and the like. Because the drying is a system engineering, only when the aspects of the heat pump host, the drying room, the system scheme design and the process treatment are scientifically fused to form a whole, the drying efficiency and the energy conservation can be really realized, and the good drying effect can be ensured.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an integral vacuum type heat pump drying energy-saving device, which carries out system design on vacuum dehumidification, heat pump circulation, cold energy recovery, hot air circulation and integrated drying to finally form an integral high-efficiency energy-saving device, thereby greatly improving the drying efficiency and reducing the drying cost.
The technical scheme adopted by the invention
The invention provides an integral vacuum type heat pump drying energy-saving device which specifically comprises an air conditioning part, a vacuum part, a dehumidifying part and a drying part, wherein the air conditioning part comprises an evaporator assembly 14, a throttling assembly 19 and a compression condensing assembly 20, the vacuum part comprises a vacuum pump 8 air suction pipe assembly 9 and an electric air valve II10, and the dehumidifying part comprises a dehumidifier 4, a moisture absorbent 11 and a wind equalizing cap assembly 29. The drying part comprises a lower diffusion port 22, an upper diffusion port 24, an adjusting air valve 23, a return air inlet 1 and a movable partition plate 27.
The evaporator assembly 14, the throttling assembly 19 and the compression and condensation assembly 20 jointly form a refrigeration system, wherein the evaporator assembly 14, the volute 15, the fan assembly 16, the air inlet grille 17 and the air outlet grille 12 of the air conditioner form a cold air heat exchange system, and the compression and condensation assembly 20, the confluence pipe assembly 18 and the air outlet box 21 form a hot air heat exchange system.
The inlet end of the dehumidifier 4 is communicated with the air return box assembly 2 through an air pipe branch pipe and an air extraction pipe assembly 9 respectively, an electric air valve II10 is arranged on each of three air pipe branch pipes connected with the air extraction pipe assembly 9, an electric air valve I5 is arranged on each of three air pipe branch pipes connected with the air return box assembly 2, and the air return box assembly 2 is provided with an air return opening 1. The outlet end of the dehumidifier 4 is connected with the collecting pipe assembly 18 through three air pipe branch pipes, each air pipe branch pipe is provided with an electric air valve III13 and a hygrometer II32, and the upper end and the lower end of the interior of the dehumidifier 4 are respectively provided with an air equalizing cap assembly 29.
The air inlet of the compression condensation component 20 is connected with the collecting pipe component 18, the air outlet is connected with the air outlet box 21, the tail end of the air outlet box 21 is respectively provided with a lower air diffusing port 22 and an upper air diffusing port 24, the lower air diffusing port 22 and the upper air diffusing port 24 are both provided with an adjusting air valve 23, and the pipeline of the collecting pipe component 18 is provided with an intelligent air pressure gauge 30.
The movable partition plate 27 is supported by a support strip 28 positioned on the inner wall 25 of the drying chamber, the inner wall 25 of the drying chamber is externally wrapped with heat insulation EPS3, and a hygrometer I31 is arranged on the side wall of the top of the drying chamber.
The invention has the beneficial effects that: the invention discloses an integral vacuum type heat pump drying energy-saving device, which carries out system design on vacuum dehumidification, heat pump circulation, cold quantity recovery and drying air circulation to finally form an integral high-efficiency energy-saving device, thereby greatly improving the drying efficiency, reducing the drying cost, solving the problems of poor energy-saving effect, long drying time, non-uniform drying materials and unmatched drying equipment and the actual requirements of customers in the actual drying application of the conventional drying device, and saving a large amount of drying energy use cost and drying production cost for users.
Drawings
FIG. 1 is a structural layout diagram of an integral vacuum type heat pump drying energy-saving device according to an embodiment of the invention; in the figure:
the air return system comprises an air return opening (1), an air return box assembly (2), a heat preservation EPS (3), a dehumidifier (4), an electric air valve I (5), an adjusting air valve (6), an adjusting air pipe (7), a vacuum pump (8), an air suction pipe assembly (9), an electric air valve II (10), a moisture absorbent (11), an air-conditioning air outlet grid (12), an electric air valve III (13), an evaporator assembly (14), a volute (15), a fan assembly (16), an air inlet grid (17), a confluence assembly (18), a throttling assembly (18), a compression and condensation assembly (20), an air outlet box (21), a lower dispersion port (22), an adjusting air valve (23), an upper dispersion port (24), a drying chamber inner wall (25), a bypass adjusting air valve (26), a movable partition plate (27), a support strip (28), an air equalizing cap assembly (29), an intelligent air pressure gauge I (31) and a hygrometer II (32).
Detailed Description
As shown in fig. 1, the drying and energy saving device of the integral vacuum heat pump of the present embodiment has the following specific implementation modes:
firstly, a heat pump cycle and cold recovery process: refrigerant gas enters the compression condensation component 20, becomes liquid refrigerant through condensation heat dissipation, and the throttle subassembly 19 is throttled and is dropped pressure and is got into the evaporator assembly 14 again, and the air is inhaled by fan assembly 16 from air inlet grille 17 this moment, also blows to evaporator assembly 14 after carrying out the wind direction adjustment through spiral case 15, and both carry out abundant heat exchange here, and the air is become cold wind by the heat absorption and blows out through air conditioner air-out grid 12, externally provides cold volume, and the refrigerant is abundant heat absorption evaporation here is refrigerant gas, and reentrant compression condensation component 20 carries out the compression condensation and releases heat, so constantly circulate.
Secondly, a hot air circulation drying process: return air enters an air inlet of the compression condensation component 20 from the collecting pipe component 18 and is subjected to full heat exchange with a condenser in the compression condensation component 20, the condensation heat of a refrigerant is discharged through a fan and is changed into hot air, the hot air is blown to a drying chamber through an air outlet box 21 through a lower air diffusing port 22 and an upper air diffusing port 24, articles in the drying chamber are dried, the lower air diffusing port 22 and the upper air diffusing port 24 are both provided with air adjusting valves 23, the air quantity is adjusted and is equalized, the drying efficiency of the articles is improved, heat preservation EPS3 is wrapped around the inner wall 25 of the drying chamber for heat insulation and preservation, supporting strips 28 are arranged on the inner wall, movable partition plates 27 are arranged on the supporting strips 28 and used for placing the dried articles, and meanwhile, the movable partition plates 27 can also be taken out to open the space for placing. After the hot air heats and dries the articles in the drying chamber, moisture enters the air return box assembly 2 from the air return inlet 1 along with the hot air, then enters the dehumidifier 4 through the air pipe branch pipe provided with the electric air valve I5, after the air is equalized by the air equalizing cap assembly 29, the moisture is blown to the moisture absorbent 11 for dehumidification and drying, the dried hot air enters the collecting pipe assembly 18 through the air pipe branch pipe provided with the electric air valve III13, the hot air circulation drying process is continuously carried out, in the process, the electric air valve III13 and the electric air valve I5 are opened, the electric air valve II10 is closed, the bypass adjusting air valve 26 and the adjusting air valve 6 arranged on the adjusting air pipe 7 carry out bypass air quantity and fresh air quantity adjustment according to the air pressure parameter provided by the intelligent air pressure meter 30, and the air pressure balance of the whole system is maintained.
Thirdly, vacuum dehumidification process: when the difference between the air humidity measured by the hygrometer I31 and the humidity measured by any hygrometer II32 installed in the three air ducts reaches a certain set value, at the moment, the electric air valve I5 and the electric air valve III13 corresponding to the air ducts are closed, the electric air valve II10 is opened, the vacuum pump 8 is started, the air pumping pipe assembly 9 is used for vacuumizing, the moisture absorbent in the corresponding cavity in the dehumidifier 4 is quickly evaporated due to the reduction of the water partial pressure caused by vacuumizing, the moisture absorbent is continuously discharged into the air until the moisture absorbent is dried, and then enters the next moisture absorption process, when the difference between the humidity and the set value is reached, the vacuum pump stops working, the electric air valve II10 corresponding to the air ducts is closed, the electric air valve I5 and the electric air valve III13 are opened, and the dehumidification and the drying are continuously performed.
According to the invention, through the specific implementation mode, the vacuum dehumidification, the heat pump circulation, the cold quantity recovery, the hot air circulation and the integrated drying are designed to form an integral high-efficiency drying device finally, so that the drying efficiency is greatly improved, the drying cost is reduced, the problems that the conventional drying device is poor in energy-saving effect, long in drying time, uneven in dried materials and unmatched between drying equipment and the actual requirements of customers in the actual drying application are solved, and a large amount of drying energy use cost and drying production cost are saved for users. Can be widely applied to the technical field of drying and energy saving.
The above description is not intended to limit the present invention, and the present invention is not limited to the above embodiments, and any changes, modifications, additions or substitutions that can achieve the technical effects of the present invention and are within the scope of the present invention should be considered as falling within the spirit of the present invention.
Claims (5)
1. The utility model provides a dry economizer of integral vacuum type heat pump which characterized in that: including air conditioner part, vacuum part, dehumidification part, dry part, air conditioner part contains evaporimeter subassembly (14), throttle subassembly (19), compression condensation subassembly (20), vacuum part contains vacuum pump (8) air exhaust pipe subassembly (9), electronic blast gate II (10), the dehumidification part contains dehumidifier (4), desiccator (11), all blast cap subassembly (29), dry part contains down scattered flow mouth (22), goes up scattered flow mouth (24), adjusting air valve (23), return air inlet (1), portable baffle (27).
2. The drying and energy-saving device of the integral vacuum type heat pump as claimed in claim 1, characterized in that: evaporator assembly (14), throttle subassembly (19), compression condensation subassembly (20) constitute refrigerating system jointly, and wherein evaporator assembly (14) constitutes cold wind heat exchange system with spiral case (15), fan subassembly (16), air-inlet grid (17), air conditioner air-out grid (12), and hot-blast heat exchange system is constituteed with collecting pipe subassembly (18), air-out case (21) to compression condensation subassembly (20).
3. The drying and energy-saving device of the integral vacuum type heat pump as claimed in claim 1, characterized in that: the inlet end of the dehumidifier (4) is communicated with the air return box assembly (2) through an air pipe branch pipe and an air pumping pipe assembly (9) respectively, an electric air valve II (10) is arranged on each of three air pipe branch pipes connected with the air pumping pipe assembly (9), an electric air valve I (5) is arranged on each of three air pipe branch pipes connected with the air return box assembly (2), the air return box assembly (2) is provided with an air return opening (1), the outlet end of the dehumidifier (4) is connected with a confluence pipe assembly (18) through three air pipe branch pipes, each air pipe branch pipe is provided with an electric air valve III (13) and a hygrometer II (32), and the upper end and the lower end of the inside of the dehumidifier (4) are provided with an air equalizing hood assembly (29) respectively.
4. The drying and energy-saving device of the integral vacuum type heat pump as claimed in claim 1, characterized in that: the air inlet of the compression condensation component (20) is connected with the collecting pipe component (18), the air outlet is connected with an air outlet box (21), the tail end of the air outlet box (21) is provided with a lower diffusion port (22) and an upper diffusion port (24) respectively, the lower diffusion port (22) and the upper diffusion port (24) are provided with an adjusting air valve (23), and the pipeline of the collecting pipe component (18) is provided with an intelligent air pressure meter (30).
5. The drying and energy-saving device of the integral vacuum type heat pump as claimed in claim 1, characterized in that: the movable partition (27) is supported by a support bar (28) positioned on the inner wall (25) of the drying chamber, the inner wall (25) of the drying chamber is wrapped with heat preservation EPS (3), and the side wall of the top part is provided with a hygrometer I (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186254.7A CN112902572A (en) | 2021-02-17 | 2021-02-17 | Integral vacuum type heat pump drying energy-saving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110186254.7A CN112902572A (en) | 2021-02-17 | 2021-02-17 | Integral vacuum type heat pump drying energy-saving device |
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| Publication Number | Publication Date |
|---|---|
| CN112902572A true CN112902572A (en) | 2021-06-04 |
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| CN202110186254.7A Pending CN112902572A (en) | 2021-02-17 | 2021-02-17 | Integral vacuum type heat pump drying energy-saving device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100882298B1 (en) * | 2008-02-05 | 2009-02-10 | 이인구 | Pressure drying unit |
| CN102645089A (en) * | 2012-05-18 | 2012-08-22 | 冯益安 | High EER (Energy Efficiency Ratio) biomass vacuum drier |
| CN107906857A (en) * | 2017-10-20 | 2018-04-13 | 青岛理工大学 | A kind of negative pressure dryer |
| CN108709353A (en) * | 2018-07-04 | 2018-10-26 | 山西港旭节能烘干设备科技有限公司 | A kind of difunctional equipment that can be dried and be refrigerated using air |
| CN109405460A (en) * | 2018-11-29 | 2019-03-01 | 江苏天舒电器有限公司 | A kind of agricultural drying equipment and furnace drying method of automatic controlled thermal pump-type |
| CN208920749U (en) * | 2018-07-28 | 2019-05-31 | 玉溪圣兴农业发展有限公司 | A kind of agricultural and sideline product baking room |
| CN109945550A (en) * | 2019-04-11 | 2019-06-28 | 珠海金太节能科技有限公司 | A kind of residual heat recovery type evaporation module and dual-effect energy-saving vapo(u)rization system |
| US10451346B1 (en) * | 2019-03-31 | 2019-10-22 | Vinamit Usa Llc | Convection current freeze drying apparatus and method of operating the same |
| CN214308097U (en) * | 2021-02-17 | 2021-09-28 | 珠海金太节能科技有限公司 | Integral vacuum type heat pump drying energy-saving device |
-
2021
- 2021-02-17 CN CN202110186254.7A patent/CN112902572A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100882298B1 (en) * | 2008-02-05 | 2009-02-10 | 이인구 | Pressure drying unit |
| CN102645089A (en) * | 2012-05-18 | 2012-08-22 | 冯益安 | High EER (Energy Efficiency Ratio) biomass vacuum drier |
| CN107906857A (en) * | 2017-10-20 | 2018-04-13 | 青岛理工大学 | A kind of negative pressure dryer |
| CN108709353A (en) * | 2018-07-04 | 2018-10-26 | 山西港旭节能烘干设备科技有限公司 | A kind of difunctional equipment that can be dried and be refrigerated using air |
| CN208920749U (en) * | 2018-07-28 | 2019-05-31 | 玉溪圣兴农业发展有限公司 | A kind of agricultural and sideline product baking room |
| CN109405460A (en) * | 2018-11-29 | 2019-03-01 | 江苏天舒电器有限公司 | A kind of agricultural drying equipment and furnace drying method of automatic controlled thermal pump-type |
| US10451346B1 (en) * | 2019-03-31 | 2019-10-22 | Vinamit Usa Llc | Convection current freeze drying apparatus and method of operating the same |
| CN109945550A (en) * | 2019-04-11 | 2019-06-28 | 珠海金太节能科技有限公司 | A kind of residual heat recovery type evaporation module and dual-effect energy-saving vapo(u)rization system |
| CN214308097U (en) * | 2021-02-17 | 2021-09-28 | 珠海金太节能科技有限公司 | Integral vacuum type heat pump drying energy-saving device |
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