CN105823324A - Closed inner circulation type tobacco drying device - Google Patents
Closed inner circulation type tobacco drying device Download PDFInfo
- Publication number
- CN105823324A CN105823324A CN201610330664.3A CN201610330664A CN105823324A CN 105823324 A CN105823324 A CN 105823324A CN 201610330664 A CN201610330664 A CN 201610330664A CN 105823324 A CN105823324 A CN 105823324A
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- Prior art keywords
- heat exchanger
- chamber
- drying
- valve
- heat
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Classifications
-
- 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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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
-
- 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
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- 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
- F26B2200/22—Tobacco leaves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a closed inner circulation type tobacco drying device. The closed inner circulation type tobacco drying device comprises a drying chamber and a drying machine body. A closed cavity is formed in the drying machine body and divided by a sensible heat exchanger into a first cavity and a second cavity which communicate with each other. The drying machine body is further provided with a containing cavity communicating with the outside. A first heat exchanger is arranged in the containing cavity. A second heat exchanger is arranged in the middle portion of the first cavity. A third heat exchanger is arranged in the second cavity. The drying machine body is internally provided with a heat pump system controlling the running state of the first heat exchanger, the second heat exchanger and the third heat exchanger. The heat pump system is adopted as a heat source for the drying machine body, closed convection circulation is conducted between the drying chamber and the drying machine body, air exchange with the outside does not exist in the whole convection circulation drying process, and complete closed drying is achieved. The situation that tobacco fragrance leaks in the drying process, and the tobacco drying quality is affected is avoided.
Description
Technical field
The present invention relates to tobacco drying apparatus technical field, particularly to a kind of airtight internal-circulation type Nicotiana tabacum L. drying unit.
Background technology
Traditional tobacco roasting great majority use and burn coal baking, and it pollutes big, and efficiency is low, and wastes time and energy；And, in tobacco roasting, temperature and humidity controls how to be judged by artificial feel, and therefore, the quality that tobacco roasting is dried is difficult to be guaranteed.
Heat drying method is existing common dry materials method, suitably heat i.e. to material, moisture in material is promoted to accelerate the force drying method of evaporation, the method can shorten drying time effectively, improves efficiency, at present, dry for Nicotiana tabacum L. and also have employing heat pump drying to process, but, its drying pattern is single, temperature, the most difficult accurate control of humidity in drying course；And, it is the most all to use free dehumidifying method to carry out dehumidifying that existing heat pump drying processes, and while dehumidifying, the fragrant atmosphere fragrance contained in Nicotiana tabacum L. Nicotiana tabacum L. is also drained, thus causes the decline of Nicotiana tabacum L. quality of tobacco.
Summary of the invention
The technical problem to be solved is to provide a kind of energy-conserving and environment-protective, drying efficiency is high, be accurately controlled drying temperature and the airtight internal-circulation type Nicotiana tabacum L. drying unit of humidity.
nullBy solving the technical scheme that above-mentioned technical problem is used: a kind of airtight internal-circulation type Nicotiana tabacum L. drying unit，Including drying chamber and drying body，The top of described drying body is respectively equipped with the wind inlet channel being connected with drying chamber and exhaust air flue with bottom，Described drying internal body is formed with airtight chamber，Described airtight chamber separates, by a sensible heat exchanger, the first chamber that formation communicates、Second chamber，Described drying body also has the accommodating chamber communicated with the external world，It is provided with First Heat Exchanger in described accommodating chamber，Described first chamber roof is connected with wind inlet channel and exhaust air flue respectively with bottom，It is provided with the second heat exchanger in the middle part of described first chamber，It is provided with the 3rd heat exchanger in described second chamber，In described dehydrator body, there is control First Heat Exchanger、Second heat exchanger and the heat pump of the 3rd heat exchanger running status.
Further, described First Heat Exchanger is and the extraneous vaporizer carrying out heat exchange, it is additionally provided with outer fan in described accommodating chamber, described second heat exchanger is to carry out the condenser of heat exchange with circulating current, it is provided with circulation of air flow blower fan below described second heat exchanger, described condenser is inverted " V " type structure, and described 3rd heat exchanger is to carry out the vaporizer of heat exchange with circulating current, is provided with liquid header below described 3rd heat exchanger.
Further, described sensible heat exchanger is in the first chamber and the tip position of the second chamber, described sensible heat exchanger has the first heat exchange import, first heat exchange outlet, second heat exchange import and the second heat exchange outlet, described first heat exchange import, second heat exchange outlet is corresponding with the first chamber to be connected, described second chamber separates, by a horizontal baffle, upper chamber and the lower chamber that formation communicates, described horizontal baffle is provided with dehumidifying blower fan, described 3rd heat exchanger is in lower chamber, described first heat exchange outlet is corresponding with lower chamber to be connected, described second heat exchange import is corresponding with upper chamber to be connected.
Further, described sensible heat exchanger is the board-like sensible heat exchanger of distributary.
nullFurther，Described heat pump includes compressor、Electric expansion valve and cross valve，The outlet of described compressor is connected with the first valve port of cross valve，The entrance of described compressor is connected with the 3rd valve port of cross valve，3rd valve port of described cross valve and the 3rd heat exchanger are connected，Second valve port of described cross valve is connected with First Heat Exchanger，4th valve port of described cross valve and the second heat exchanger are connected，Described First Heat Exchanger is connected with the outlet of electric expansion valve and is provided with the first stop valve between，Described second heat exchanger is connected with the entrance of electric expansion valve，Described 3rd heat exchanger is connected with the outlet of electric expansion valve and is provided with the second stop valve between，Described First Heat Exchanger and the second heat exchanger are connected and are provided with the 3rd stop valve between，By controlling described cross valve、First stop valve、The duty of the second stop valve and the 3rd stop valve is to control First Heat Exchanger、Second heat exchanger and the 3rd heat exchanger running status.
Beneficial effect: in this airtight internal-circulation type Nicotiana tabacum L. drying unit, drying body uses heat pump as thermal source, airtight convection circulation is carried out between drying chamber and drying body, in whole convection circulation drying course, do not have and the external world carries out air exchange, complete airtight drying, it is to avoid in drying course, tobacco aroma leaks, affects Tobacco drying quality；In addition, First Heat Exchanger, the second heat exchanger and the 3rd heat exchanger running status is controlled by heat pump, this airtight internal-circulation type Nicotiana tabacum L. drying unit is made to have heating, dehumidifying and three kinds of operational modes of heating and dehumidification, temperature and humidity in drying course accurately can be controlled, thus reach the effect of energy-conserving and environment-protective.
Accompanying drawing explanation
The present invention is described further with embodiment below in conjunction with the accompanying drawings；
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the structural representation being in heating mode state in the embodiment of the present invention；
Fig. 3 is the structural representation being in dehumidification mode state in the embodiment of the present invention；
Fig. 4 is the structural representation being in heating and dehumidification mode state in the embodiment of the present invention；
Fig. 5 is the systematic schematic diagram that in the embodiment of the present invention, heat pump is in heat cycles loop；
Fig. 6 is the systematic schematic diagram that in the embodiment of the present invention, heat pump is in dehumidifying closed circuit；
Fig. 7 is the systematic schematic diagram that in the embodiment of the present invention, heat pump is in heating and dehumidification closed circuit.
Detailed description of the invention
nullReferring to figs. 1 through Fig. 7，A kind of airtight internal-circulation type Nicotiana tabacum L. drying unit of the present invention，Including drying chamber 20 and drying body 10，The top drying body 10 is respectively equipped with the wind inlet channel 21 and exhaust air flue 22 being connected with drying chamber 20 with bottom，Dry body 10 and be internally formed airtight chamber，Airtight chamber separates, by a sensible heat exchanger 30, the first chamber 11 that formation communicates、Second chamber 12，Dry body 10 and also there is the accommodating chamber 13 communicated with the external world，First Heat Exchanger 14 it is provided with in accommodating chamber 13，First chamber 11 top is connected with wind inlet channel 21 and exhaust air flue 22 respectively with bottom，The second heat exchanger 15 it is provided with in the middle part of the first chamber 11，It is provided with the 3rd heat exchanger 16 in the second chamber 12，There is in drying body 10 control First Heat Exchanger 14、Second heat exchanger 15 and the heat pump of the 3rd heat exchanger 16 running status.
nullIn the present embodiment，First Heat Exchanger 14 is to carry out the vaporizer of heat exchange with the external world，Outer fan 17 it is additionally provided with in accommodating chamber 13，Second heat exchanger 15 is to carry out the condenser of heat exchange with circulating current，Circulating current is heated by this second heat exchanger 15 as heater，It is provided with circulation of air flow blower fan 18 below the second heat exchanger 15，Condenser is inverted " V " type structure，Can effectively increase the contact area of circulating current and condenser，Improve heat exchange efficiency，3rd heat exchanger 16 is to carry out the vaporizer of heat exchange with circulating current，3rd heat exchanger 16 is as dehumidifier，When circulating current flows through three heat exchangers 16，Condensation forms drop，Reach the effect to circulating current dehumidifying，Thus the humidity in drying course is controlled，Below the 3rd heat exchanger 16, it is provided with collecting the liquid header of drop.
nullWherein，Sensible heat exchanger 30 is preferably the board-like sensible heat exchanger of distributary，This sensible heat exchanger 30 is arranged in the first chamber and the tip position of the second chamber，Sensible heat exchanger 30 has the first heat exchange import 31、First heat exchange outlet 32、Second heat exchange import 33 and the second heat exchange outlet 34，First heat exchange import 31、Second heat exchange outlet 34 is corresponding with the first chamber 11 to be connected，Second chamber 12 separates, by a horizontal baffle, upper chamber and the lower chamber that formation communicates，Horizontal baffle is provided with dehumidifying blower fan 19，3rd heat exchanger 16 is in lower chamber，First heat exchange outlet 32 is corresponding with lower chamber to be connected，Second heat exchange import 33 is corresponding with upper chamber to be connected，Circulating current can be entered in the second chamber 12 from the first chamber 11 by sensible heat exchanger 30，Dehumidified by the 3rd heat exchanger 16 being in the second chamber 12，Circulating current after dehumidifying enters in the first chamber 11 from the second chamber 12 further through sensible heat exchanger 30.
The complete confined space that drying chamber 20 is connected with airtight chamber and is formed, circulating current for drying is completely in this confined space, does not has and the external world carries out air exchange, complete airtight drying, avoid tobacco aroma in drying course to leak, affect drying quality.
This airtight internal-circulation type Nicotiana tabacum L. drying unit has heating, dehumidifying and three kinds of operational modes of heating and dehumidification, can accurately control the temperature and humidity in drying course, and three kinds of operational modes are specific as follows:
Heating mode: First Heat Exchanger 14, outer fan the 17, second heat exchanger 15 and circulation of air flow blower fan 18 are in duty; 3rd heat exchanger 16, dehumidifying blower fan 19 are in stopped status; circulating current directly enters in the first chamber 11 from wind inlet channel 21; heat exchange is carried out with the second heat exchanger 15 in the first chamber 11; improving the temperature of circulating current, the circulating current after being heated flows to drying chamber 20 from exhaust air flue 22 again.
Dehumidification mode: First Heat Exchanger 14, outer fan the 17, the 3rd heat exchanger 16, dehumidifying blower fan 19 and circulation of air flow blower fan 18 are in duty; second heat exchanger 15 is in stopped status; circulating current directly enters in the first chamber 11 from wind inlet channel 21; dehumidify in entering the second chamber 12 by sensible heat exchanger 30 again; reduce the humidity of circulating current; the Posterior circle air-flow that dehumidified enters in the first chamber 11 further through sensible heat exchanger 30 from the second chamber 12; finally, the circulating current after dehumidifying flows to drying chamber 20 from exhaust air flue 22 again.
Heating and dehumidification pattern: the second heat exchanger 15, circulation of air flow blower fan 18, 3rd heat exchanger 16, dehumidifying blower fan 19 is in duty, First Heat Exchanger 14, outer fan 17 is in stopped status, circulating current directly enters in the first chamber 11 from wind inlet channel 21, dehumidify in entering the second chamber 12 by sensible heat exchanger 30 again, reduce the humidity of circulating current, the Posterior circle air-flow that dehumidified enters in the first chamber 11 further through sensible heat exchanger 30 from the second chamber 12, circulating current after dehumidifying and the second heat exchanger 15 in the first chamber 11 carry out heat exchange again, improve the temperature of circulating current, finally, circulating current after dehumidifying heating flows to drying chamber 20 from exhaust air flue 22 again.
nullWherein，First Heat Exchanger 14、Second heat exchanger 15 and the 3rd heat exchanger 16 are controlled by heat pump，Specifically，Heat pump includes compressor 41、Electric expansion valve 42 and cross valve 43，The outlet of compressor 41 is connected with the first valve port 431 of cross valve 43，The entrance of compressor 41 is connected with the 3rd valve port 433 of cross valve 43，3rd valve port 433 of cross valve 43 is connected with the 3rd heat exchanger 16，Second valve port 432 of cross valve 43 is connected with First Heat Exchanger 14，4th valve port 434 of cross valve 43 is connected with the second heat exchanger 15，First Heat Exchanger 14 is connected with the outlet of electric expansion valve 42 and is provided with the first stop valve 44 between，Second heat exchanger 15 is connected with the entrance of electric expansion valve 42，3rd heat exchanger 16 is connected with the outlet of electric expansion valve 42 and is provided with the second stop valve 45 between，First Heat Exchanger 14 is connected with the second heat exchanger 15 and is provided with the 3rd stop valve 46 between.
By controlling cross valve the 43, first stop valve the 44, second stop valve 45 and the duty of the 3rd stop valve 46, make compressor 41, between First Heat Exchanger the 14, second heat exchanger 15 the 3rd heat exchanger 16 and electric expansion valve 42, form different connected modes, reach different closed circuits, i.e. form heat cycles loop, dehumidifying closed circuit and heating and dehumidification closed circuit, specifically:
When control cross valve 43 the first valve port 431 be connected with the 4th valve port 434, the second valve port 432 of cross valve 43 is connected with the 3rd valve port 433, the first stop valve 44 is opened, the second stop valve 45 is closed and the 3rd stop valve 46 is closed time, heat pump forms heat cycles loop, as shown in Figure 5.
When control cross valve 43 the first valve port 431 be connected with the second valve port 432, the first stop valve 44 is closed, the second stop valve 45 is opened and the 3rd stop valve 46 opens time, heat pump formed dehumidify closed circuit, the most as shown in Figure 6.
When control cross valve 43 the first valve port 431 be connected with the 4th valve port 434, the first stop valve 44 is closed, the second stop valve 45 is opened and the 3rd stop valve 46 is closed time, heat pump formation heating and dehumidification closed circuit, the most as shown in Figure 7.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the invention is not restricted to above-mentioned embodiment, in the ken that described technical field those of ordinary skill is possessed, it is also possible on the premise of without departing from present inventive concept, various changes can be made.
Claims (5)
1. an airtight internal-circulation type Nicotiana tabacum L. drying unit, it is characterized in that: include drying chamber and dry body, the top of described drying body is respectively equipped with the wind inlet channel being connected with drying chamber and exhaust air flue with bottom, described drying internal body is formed with airtight chamber, described airtight chamber separates, by a sensible heat exchanger, the first chamber that formation communicates, second chamber, described drying body also has the accommodating chamber communicated with the external world, it is provided with First Heat Exchanger in described accommodating chamber, described first chamber roof is connected with wind inlet channel and exhaust air flue respectively with bottom, it is provided with the second heat exchanger in the middle part of described first chamber, it is provided with the 3rd heat exchanger in described second chamber, in described dehydrator body, there is control First Heat Exchanger, second heat exchanger and the heat pump of the 3rd heat exchanger running status.
Airtight internal-circulation type Nicotiana tabacum L. drying unit the most according to claim 1, it is characterized in that: described First Heat Exchanger is and the extraneous vaporizer carrying out heat exchange, it is additionally provided with outer fan in described accommodating chamber, described second heat exchanger is to carry out the condenser of heat exchange with circulating current, it is provided with circulation of air flow blower fan below described second heat exchanger, described condenser is inverted " V " type structure, described 3rd heat exchanger is to carry out the vaporizer of heat exchange with circulating current, is provided with liquid header below described 3rd heat exchanger.
Airtight internal-circulation type Nicotiana tabacum L. drying unit the most according to claim 2, it is characterized in that: described sensible heat exchanger is in the first chamber and the tip position of the second chamber, described sensible heat exchanger has the first heat exchange import, first heat exchange outlet, second heat exchange import and the second heat exchange outlet, described first heat exchange import, second heat exchange outlet is corresponding with the first chamber to be connected, described second chamber separates, by a horizontal baffle, upper chamber and the lower chamber that formation communicates, described horizontal baffle is provided with dehumidifying blower fan, described 3rd heat exchanger is in lower chamber, described first heat exchange outlet is corresponding with lower chamber to be connected, described second heat exchange import is corresponding with upper chamber to be connected.
Airtight internal-circulation type Nicotiana tabacum L. drying unit the most according to claim 3, it is characterised in that: described sensible heat exchanger is the board-like sensible heat exchanger of distributary.
nullAirtight internal-circulation type Nicotiana tabacum L. drying unit the most according to claim 1，It is characterized in that: described heat pump includes compressor、Electric expansion valve and cross valve，The outlet of described compressor is connected with the first valve port of cross valve，The entrance of described compressor is connected with the 3rd valve port of cross valve，3rd valve port of described cross valve and the 3rd heat exchanger are connected，Second valve port of described cross valve is connected with First Heat Exchanger，4th valve port of described cross valve and the second heat exchanger are connected，Described First Heat Exchanger is connected with the outlet of electric expansion valve and is provided with the first stop valve between，Described second heat exchanger is connected with the entrance of electric expansion valve，Described 3rd heat exchanger is connected with the outlet of electric expansion valve and is provided with the second stop valve between，Described First Heat Exchanger and the second heat exchanger are connected and are provided with the 3rd stop valve between，By controlling described cross valve、First stop valve、The duty of the second stop valve and the 3rd stop valve is to control First Heat Exchanger、Second heat exchanger and the 3rd heat exchanger running status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330664.3A CN105823324A (en) | 2016-05-18 | 2016-05-18 | Closed inner circulation type tobacco drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330664.3A CN105823324A (en) | 2016-05-18 | 2016-05-18 | Closed inner circulation type tobacco drying device |
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| Publication Number | Publication Date |
|---|---|
| CN105823324A true CN105823324A (en) | 2016-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610330664.3A Pending CN105823324A (en) | 2016-05-18 | 2016-05-18 | Closed inner circulation type tobacco drying device |
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| CN (1) | CN105823324A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106690393A (en) * | 2016-12-15 | 2017-05-24 | 中国烟草总公司广东省公司 | Tobacco curing barn |
| CN107477918A (en) * | 2017-09-18 | 2017-12-15 | 东莞市正旭新能源设备科技有限公司 | A Multifunctional Closed Tobacco Curing Heat Pump System |
| CN109237925A (en) * | 2018-10-29 | 2019-01-18 | 江苏天舒电器有限公司 | A kind of dehumidifying drying control system for heat pump |
| CN109588755A (en) * | 2018-11-28 | 2019-04-09 | 湖南科技大学 | Interior circulating dehumidification bulk curing barn baking system |
| CN109588754A (en) * | 2018-11-28 | 2019-04-09 | 湖南科技大学 | Interior circulating-heating dehumidification device for bulk curing barn transformation |
| CN109654868A (en) * | 2018-10-16 | 2019-04-19 | 中国科学院合肥物质科学研究院 | A kind of baking system based on Superconducting tokamak device |
| CN110506972A (en) * | 2019-09-23 | 2019-11-29 | 湖南科技大学 | Heating and dehumidification device for dense barn based on air circulation control |
| CN110597332A (en) * | 2019-10-22 | 2019-12-20 | 广州市华德工业有限公司 | Curing barn dry-wet ball temperature control method and curing barn dry-wet ball temperature control system |
| CN110584177A (en) * | 2019-09-04 | 2019-12-20 | 广州市华德工业有限公司 | Multifunctional heat pump drying system |
| CN110762963A (en) * | 2019-12-09 | 2020-02-07 | 吴斌 | Closed normal atmospheric temperature drying equipment |
| CN111758992A (en) * | 2020-07-24 | 2020-10-13 | 赫普能源环境科技股份有限公司 | A system and method for flue-cured tobacco with heat pump coupled heat storage |
| CN112484405A (en) * | 2020-12-02 | 2021-03-12 | 广州市华德工业有限公司 | Movable baking device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106690393A (en) * | 2016-12-15 | 2017-05-24 | 中国烟草总公司广东省公司 | Tobacco curing barn |
| CN107477918A (en) * | 2017-09-18 | 2017-12-15 | 东莞市正旭新能源设备科技有限公司 | A Multifunctional Closed Tobacco Curing Heat Pump System |
| CN109654868A (en) * | 2018-10-16 | 2019-04-19 | 中国科学院合肥物质科学研究院 | A kind of baking system based on Superconducting tokamak device |
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| CN109588755A (en) * | 2018-11-28 | 2019-04-09 | 湖南科技大学 | Interior circulating dehumidification bulk curing barn baking system |
| CN109588754A (en) * | 2018-11-28 | 2019-04-09 | 湖南科技大学 | Interior circulating-heating dehumidification device for bulk curing barn transformation |
| CN110584177A (en) * | 2019-09-04 | 2019-12-20 | 广州市华德工业有限公司 | Multifunctional heat pump drying system |
| CN110506972A (en) * | 2019-09-23 | 2019-11-29 | 湖南科技大学 | Heating and dehumidification device for dense barn based on air circulation control |
| CN110597332A (en) * | 2019-10-22 | 2019-12-20 | 广州市华德工业有限公司 | Curing barn dry-wet ball temperature control method and curing barn dry-wet ball temperature control system |
| CN110597332B (en) * | 2019-10-22 | 2024-02-27 | 广州市华德工业有限公司 | Baking room dry and wet ball temperature control method and baking room dry and wet ball temperature control system |
| CN110762963A (en) * | 2019-12-09 | 2020-02-07 | 吴斌 | Closed normal atmospheric temperature drying equipment |
| CN110762963B (en) * | 2019-12-09 | 2024-05-14 | 吴斌 | Closed normal temperature drying equipment |
| CN111758992A (en) * | 2020-07-24 | 2020-10-13 | 赫普能源环境科技股份有限公司 | A system and method for flue-cured tobacco with heat pump coupled heat storage |
| CN112484405A (en) * | 2020-12-02 | 2021-03-12 | 广州市华德工业有限公司 | Movable baking device |
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Application publication date: 20160803 |