CN202494280U - Air source heat pump heating condensing dehumidifying drying device - Google Patents
Air source heat pump heating condensing dehumidifying drying device Download PDFInfo
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- CN202494280U CN202494280U CN2011205038473U CN201120503847U CN202494280U CN 202494280 U CN202494280 U CN 202494280U CN 2011205038473 U CN2011205038473 U CN 2011205038473U CN 201120503847 U CN201120503847 U CN 201120503847U CN 202494280 U CN202494280 U CN 202494280U
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Abstract
The utility model relates to an air source heat pump heating condensing dehumidifying drying device constituted by a drying chamber and an outdoor device. The drying chamber can be divided into an operation chamber and a device chamber. An air flow circulating fan and an indoor device are disposed in the device chamber. The indoor device and the outdoor device are respectively provided with a refrigerant compressor, an evaporator, a condenser, a dehumidifying system electromagnetic valve, a heating system electromagnetic valve, a throttling device, a fan, and a water collector. The air source heat pump heating system and the condensing dehumidifying system can be formed by connecting a refrigerant pipeline and a circuit. The cold wet air flow in the operation chamber can enter the indoor device from a lower part of the operation chamber under the action of the air flow circulating fan, and thereafter enter an upper part of the operation chamber from a top of the indoor device after being heated or dehumidified in the indoor device, then enter the indoor device from a ventilating opening in the bottom of the operation chamber after passing through objects to be dried in the operation chamber, in addition, the air flow can be circulated in the above mentioned manner, till the objects are dried. The device provided in the utility model has advantages of high efficiency, no pollution, energy saving, emission reduction, simple operation, and applicability in the drying of tobaccos, medicinal materials, subsidiary agricultural products, meat products, foodstuff, and textiles.
Description
Technical field
The utility model relates to a kind of drying unit, is specifically related to add the heating of thermal recovery air source heat pump, and the drying unit of dehumidification by condensation is adopted in dehumidifying, be fit to tobacco, medicinal material, agricultural-product, meat products, and food, textiles etc. are dried.
Background technology
At the drying unit of usefulness, owing to add the coal-fired heating of thermal recovery or combustion gas heating or fuel Heating, dehumanization method is to adopt high humidity in the device of draining and the higher gas of temperature of heating in the sixth of the twelve Earthly Branches at present; Again replenish little and the air that temperature is low of relative humidity in the motion device external environment, it is a lot of to cause in the drying unit temperature to descend, and must in time the air in the access to plant be heated again; Thereby increased energy consumption, these heating measure fuel costs are high, and potential safety hazard is big; The waste gas waste residue that is produced is big for environment pollution; It is big to control difficulty, and temperature humidity also is difficult to accurately control, and the quality of drying article can not get guaranteeing.
Summary of the invention
Said problem to present drying unit existence; The goal of the invention of the utility model is: for the user provides a kind of thermal recovery air source heat pump heating of adding, dehumidification by condensation is adopted in dehumidifying, has that energy consumption is low, drying efficiency is high, safe coefficient is high, the drying article quality is secure; The waste gas waste residue that does not produce; Environmentally safe has been realized energy-saving and emission-reduction, is suitable for tobacco, medicinal material, agricultural-product, meat products; Food, textile etc. are dried the air source heat pump heating condensation dehumidifying drying device of usefulness.
The goal of the invention of the utility model realizes through implementing following technical proposals:
A kind of air source heat pump heating condensation dehumidifying drying device; Be made up of baking room and supporting off-premises station two parts, said baking room is a baking room that integral body is airtight of being processed by good heat insulating, protection against the tide, the higher material of mechanical strength; It is characterized in that: in baking room; By the partition wall that upper and lower ventilating opening is arranged baking room is divided into small one and large one two chambers, big chamber is to be called for short between operation between the drying dehumidification operation, and cell is an equipment room; Indoor set is installed in the equipment room, indoor set mainly by around sealing, the upper and lower casing that ventilating opening is arranged, and the drip tray, evaporimeter, condenser, threeway, dehumidification system magnetic valve, the throttling arrangement that are contained in the casing are formed; Wherein: evaporimeter, condenser tilt to install, and make its draught area big, and flowing resistance is little; Ventilation is big, and heat exchange efficiency is high, presses airflow direction; Evaporimeter is installed in the condenser front, and indoor set bottom is provided with air inlet, communicates between the ventilating opening of this air inlet through the partition wall bottom and operation; The drip tray of indoor set bottom is drawn condensed water outside the baking room through the drainpipe that is attached thereto, and equipment room top is provided with the air-flow circulating fan; The air inlet of this circulating fan is connected with the ventilating opening at indoor set top; And the air outlet of this circulating fan passes the ventilating opening at partition wall top, and is contained in the guide duct that the side of its on the roof and end between operation be shaped on the air-out window and is connected, and gets between operations through these air-out windows from the thermal current of indoor set; Be provided with oven dry thing bolster or hanger between operation; And be provided with temperature sensor and humidity sensor, the metope between operation is provided with and is used to adorn the sealed door of getting the oven dry thing, on the metope between operation or end face be provided with auxiliary moistureproof window;
Said supporting off-premises station, by a casing that air inlet and air outlet are arranged, and all assemblies of cold medium compressor, blower fan, heating system magnetic valve, evaporimeter, throttling arrangement that are contained in the casing are formed;
Off-premises station and indoor set are formed the dehumidification system and the heating system of baking room through refrigerant medium pipeline and interlock circuit.
Description of drawings
Fig. 1 is the structural representation of air source heat pump heating condensation dehumidifying drying device vertical profile: mark among the figure: 1 is sealed door between operation; 2 between operation; 3 is baking room; 4 are auxiliary moistureproof window; 5 is guide duct; 6 is the air-out window on the guide duct; 7 is drying article; 8 oven dry thing bolster or hangers; 9 is temperature sensor; 10 is humidity sensor; 11 for there being the partition wall of ventilating opening up and down; 12 is the air-flow circulating fan; 13 is equipment room; 14 is indoor set; 15 is the dehumidification system magnetic valve; 16 are threeway; 17 is throttling arrangement; 18 is condenser; 19 is the indoor set air inlet; 20 is evaporimeter; 21 is drip tray; 22 is the drainpipe of drip tray; 23 are threeway; 24 is cold medium compressor; 25 is throttling arrangement; 26 is the heating system magnetic valve; 27 is blower fan; 28 is evaporimeter; 29 is off-premises station.
The specific embodiment
Describe in detail below in conjunction with 1 pair of the utility model of accompanying drawing:
A kind of air source heat pump heating condensation dehumidifying drying device; Mainly be made up of baking room 3 and supporting off-premises station 29 two parts, wherein said baking room is the airtight baking room of being processed by good heat insulating, humidity resistance material good, that mechanical strength is higher 3 of an integral body; It is characterized in that: in baking room 3; By the partition wall that upper and lower ventilating opening is arranged 11 baking room is divided into small one and large one two chambers, big chamber is to be called for short between operation 2 between the drying dehumidification operation, and cell is an equipment room 13;
Said supporting off-premises station 29, by a casing that air inlet and air outlet are arranged, and be contained in cold medium compressor 24 in the casing, throttling arrangement 25, heating system magnetic valve 26, fan 27, evaporimeter 28,, threeway 23 all parts are formed; Off-premises station 29 passes through refrigerant medium pipeline and interlock circuit with indoor set 14, forms the dehumidification system and the heating system of baking room 3;
Said heating system is connected by following mode with dehumidification system: cold medium compressor 24 its exhaust outlets pierce into the equipment room 13 of baking room 3 through the refrigerant medium pipeline; Be connected with condenser 18 imports of indoor set 14; These condenser 18 outlets connect threeway 16; One end of threeway 16 connects dehumidification system magnetic valve 15, throttling arrangement 17 successively; The outlet of the import of evaporimeter 20, evaporimeter 20 passes equipment room 13 through the refrigerant medium pipeline again and passes baking room 3 again and be connected with an end of the threeway 23 of off-premises station 29, and the other end of threeway 23 is connected with the air inlet of cold medium compressor 24; Threeway 16 other ends in the indoor set pass magnetic valve 26, the throttling arrangement 25 that equipment room 13 passes baking room 3 and off-premises station 29 again through the refrigerant medium pipeline again; The outlet of the import of evaporimeter 28, evaporimeter 28 is connected with the other end of threeway 23 again, connects the back that finishes and injects refrigerant;
During heating, heating system magnetic valve 26 is opened, and dehumidification system magnetic valve 15 cuts out, and during dehumidifying, dehumidification system magnetic valve 15 is opened, and heating system magnetic valve 26 cuts out;
In 2 whens heating between the baking room operation: heating system magnetic valve 26 is opened, and dehumidification system magnetic valve 15 cuts out, 12 operations of air-flow circulating fan, cold medium compressor 24 operations; Blower fan 27 operation, the import that refrigerant gets into the condenser 19 of indoor set 14 through compressor 24 exhaust outlets is again from the outlet of condenser 19 threeway 16 through indoor set, through off-premises station 29 heating system magnetic valves 26, through throttling arrangement 25; Get into the import of evaporimeter 28, from the outlet of evaporimeter 28, get into threeway 23 again; Get into the air inlet of cold medium compressor 24, form the refrigerant circulation of heating process, in this circulation; The airborne heat of evaporimeter 28 continuous absorbing environmentals of off-premises station 29, the condenser 18 in the indoor set 14 is constantly emitted heat, at the same time; Because dehumidification system magnetic valve 15 cuts out, refrigerant does not circulate in the evaporimeter 20, and evaporimeter 20 is a normal temperature;
In the time of the circulation of heating process refrigerant
,Circulating fan 12 is in operation, and the air-flow that 2 temperature of lower are lower between operation gets into indoor set 14 bottom air inlets 19 from the ventilating opening of partition wall 11 bottoms, passes evaporimeter 20 outer surfaces of indoor set earlier; At the same time, dehumidification system magnetic valve 15 cuts out, and refrigerant does not circulate in the evaporimeter 20; Evaporimeter 20 is a normal temperature, and air-flow passes condenser 18 outer surfaces again, absorptive condenser 18 liberated heats; Absorptive condenser liberated heat and heated thermal current get into the guide duct 5 on 2 roofs between operation by partition wall 11 top portion ventilation mouths under the effect of air-flow circulating fan 12, flow between operations 2 from its air-out window 6; Through by the oven dry thing 7 after again to 2 bottoms between operation; The air-flow that 2 temperature of lower are lower between operation gets into indoor set 14 from the ventilating opening of partition wall 11 bottoms once more, forms the closed circulation of air-flow, in this circulation; 2 air is by constantly heating between operation; By being arranged on temperature sensor 9 and the outer monitoring system of baking room thereof between operation, can realize automatic monitoring and control, till temperature between operation reaches the oven dry setting value to temperature between operation;
When dehumidifying between the baking room operation, dehumidification system magnetic valve 15 is opened, and heating system magnetic valve 26 cuts out; 12 operations of air-flow circulating fan, cold medium compressor 24 operations, refrigerant gets into the import of the condenser 18 of indoor set 14 through compressor 24 exhaust outlets; Again from the outlet of condenser 18 threeway 16 through indoor set, through dehumidification system magnetic valve 15, through throttling arrangement 17, the import that gets into evaporimeter 20 gets into the air inlet that the threeway 23 of off-premises station gets into cold medium compressors 24 from the outlet of evaporimeter 20 again; Form the refrigerant circulation of dehumidification process, in this circulation, evaporimeter 20 constantly absorbs airborne heat; Condenser 18 is constantly emitted heat, at the same time, because heating system magnetic valve 26 cuts out; Refrigerant does not circulate in the evaporimeter 28, and evaporimeter 28 is a normal temperature;
In the time of the circulation of dehumidification process refrigerant
,Air-flow circulating fan 12 is in operation, and the higher air-flow of 2 bottom humidity gets into indoor set 14 bottom air inlets from the ventilating opening of partition wall 11 bottoms between operation, earlier evaporimeter 20 outer surfaces by indoor set; Be evaporated device 20 draw heats, gas flow temperature descends, and the moisture content in the air-flow is condensed into water when reaching dew-point temperature; Flow into drip tray 21 along evaporimeter 20 surfaces and discharge baking room 3, realized that the low-temperature airflow after the dehumidifying passes through condenser 18 again to the purpose from 2 air-flows dehumidifying between operation by drainpipe 22; Absorptive condenser 18 is emitted heat; Air-flow after being heated again after the dehumidifying gets into the guide duct 5 on 2 roofs between operation by partition wall 11 top portion ventilation mouths under the effect of air-flow circulating fan 12, flow between operations 2 from its air-out window 6; Through by the oven dry thing 7 after again to 2 bottoms between operation; The higher air-flow of 2 bottom humidity gets into indoor set 14 from the ventilating opening of partition wall 11 bottoms once more between operation, forms the closed circulation of air-flow, in this circulation; 2 air humidity constantly descends between operation; By being arranged on humidity sensor 10 and the outer monitoring system of baking room thereof between operation, can realize automatic monitoring and control, till humidity between operation reaches the oven dry setting value to humidity between operation.
The outstanding advantage of the utility model is:
1 is energy-conservation; The air source heat pump efficiency of heating surface is high: constantly accomplish evaporation, compression, condensation, throttling, the thermodynamic cycle process of evaporation again through making refrigerant medium; Thereby the heat in the environment is constantly shifted to heated object, and Energy Efficiency Ratio reaches 1:4 and has improved the efficiency of heating surface greatly.Dehumidification by condensation is energy-efficient: through refrigerant medium constantly evaporation in indoor machine evaporation; The evaporator external absorption needs the heat of dehumidifying gas; Moisture content condensation in the gas is adsorbed on the evaporator fin and condenses into water, splashes into drip tray and discharges baking room, removed humidity behind the moisture content lower pass through condenser again than cold air; The condensation heat of recovery system; Remedy in the gas because the heat that loses during cooling and dehumidifying, this is a kind of energy-efficient dehumidification mode, has realized that energy-saving and cost-reducing oven dry cost is low;
2 environmentally safes, the waste gas waste residue that does not produce or not CO2 emission, environmentally safe;
3 safety, no waste gas advances drying chamber, can not pollute by drying article, and safe coefficient is high;
4 control easily; Can realize the full-automation control of Preset Time, temperature, humidity program to drying article; Operate simple and easyly, can realize unmanned, be particularly suitable for time, temperature, humidity are had the oven dry of the article of strict demand; For example to the oven dry of tobacco, and secure to the quality of drying article;
5 because this device a shared compressor and condenser in heating and dehumidifying have reduced the device fabrication cost.
Claims (3)
1. an air source heat pump heats condensation dehumidifying drying device; Form by baking room and supporting off-premises station two parts; Said baking room is a baking room that integral body is airtight of being processed by good heat insulating, protection against the tide, material that mechanical strength is high, it is characterized in that: in baking room (3); By the partition wall that upper and lower ventilating opening is arranged (11) baking room is divided into small one and large one two chambers; Big chamber is (2) between the drying dehumidification operation, and cell is equipment room (13), and indoor set (14) is installed in the equipment room (13); Indoor set mainly by around sealing, the upper and lower casing that ventilating opening is arranged, and the drainpipe (22) that is contained in evaporimeter (20) in the casing, condenser (18), threeway (16), dehumidification system magnetic valve (15), throttling arrangement (17), drip tray (21), drip tray is formed; Indoor set (14) bottom is provided with air inlet; (2) communicate between the ventilating opening of this air inlet through partition wall (11) bottom and operation; Equipment room (13) top is provided with air-flow circulating fan (12); The air inlet of this circulating fan (12) is connected with the ventilating opening at indoor set (14) top, and the air outlet of this circulating fan (12) passes the ventilating opening at partition wall (11) top, and is contained in that the guide duct on the roof (5) is connected between operation; Be provided with oven dry thing bolster or hanger (8) between operation in (2); And be provided with temperature sensor (9) and humidity sensor (10), between operation the metope of (2) be provided be used to adorn get the oven dry thing sealed door (1), between operation on the metope of (2) or end face be provided with auxiliary moistureproof window (4); Said supporting off-premises station (29) is by the casing that air inlet and air outlet are arranged, and all assemblies of cold medium compressor (24), blower fan (27), heating system magnetic valve (26), evaporimeter (28), throttling arrangement (25), threeway (23) that are contained in the casing are formed; Off-premises station (29) passes through refrigerant medium pipeline and interlock circuit with indoor set (14), forms the heating system and the dehumidification system of baking room (2); Said heating system is connected by following mode with dehumidification system: its exhaust outlet of cold medium compressor (24) is connected with condenser (18) import in the indoor set (14); The outlet of this condenser (18) connects threeway (16); One end of threeway (16) connects dehumidification system magnetic valve (15), throttling arrangement (17), and the outlet of the import of evaporimeter (20), evaporimeter (20) is connected with threeway (23) in the off-premises station (29); Threeway (16) other end in the indoor set (14) and the magnetic valve (26) in the off-premises station (29), throttling arrangement (25), the outlet of the import of evaporimeter (28), evaporimeter (28) is connected with threeway (23) again, and threeway (23) is connected with cold medium compressor (24) air inlet; Magnetic valve during heating (26) is opened, and magnetic valve (15) cuts out, and magnetic valve during dehumidifying (15) is opened, and magnetic valve (26) cuts out.
2. according to the described air source heat pump heating of claim 1 condensation dehumidifying drying device, it is characterized in that: the evaporimeter (20) in the indoor set (14), condenser (18) tilt to install, and press airflow direction, and evaporimeter (20) is installed in condenser (18) front.
3. according to the described air source heat pump heating of claim 1 condensation dehumidifying drying device; It is characterized in that: the outlet of the condenser in (14) (18) connects threeway (16); Magnetic valve (15), the other end that threeway (16) one ends connect in the indoor set (14) connect the magnetic valve (26) in the off-premises station (29), and magnetic valve during heating (26) is opened, and magnetic valve (15) cuts out; Magnetic valve during dehumidifying (15) is opened, and magnetic valve (26) cuts out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205038473U CN202494280U (en) | 2011-12-07 | 2011-12-07 | Air source heat pump heating condensing dehumidifying drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205038473U CN202494280U (en) | 2011-12-07 | 2011-12-07 | Air source heat pump heating condensing dehumidifying drying device |
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| CN202494280U true CN202494280U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205038473U Expired - Fee Related CN202494280U (en) | 2011-12-07 | 2011-12-07 | Air source heat pump heating condensing dehumidifying drying device |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102960842A (en) * | 2012-11-16 | 2013-03-13 | 东莞市正旭新能源设备科技有限公司 | Tobacco dryer with dehumidification evaporator |
| CN103381303A (en) * | 2012-05-04 | 2013-11-06 | 大韩电机工业(株) | Condensing device employing direction-switching mode |
| CN103453759A (en) * | 2013-08-22 | 2013-12-18 | 南京翠波新能源发展有限公司 | Air source heat pump water circulation heat exchange drying system |
| CN103900356A (en) * | 2014-03-13 | 2014-07-02 | 甘肃金佑康药业科技有限公司 | Condensing type hot air circulation drying device |
| CN103968658A (en) * | 2013-02-02 | 2014-08-06 | 成都市东和兴科节能技术研究所 | Drying device by adopting water circulation heating of air source heat pump and water circulation condensation and dehumidification |
| CN104019643A (en) * | 2013-02-28 | 2014-09-03 | 中国科学院理化技术研究所 | Agricultural product heat pump drying system with waste heat recovery function |
| CN104336736A (en) * | 2013-08-10 | 2015-02-11 | 广州九恒新能源有限公司 | Domestic multifunctional drying machine |
| CN104964525A (en) * | 2015-07-01 | 2015-10-07 | 天津市傲绿农副产品集团股份有限公司 | Heat pump type fruit and vegetable drying machine |
| CN105333717A (en) * | 2015-10-30 | 2016-02-17 | 安徽欧瑞达电器科技有限公司 | Integrated high-temperature dehumidifying and drying device |
| CN105333718A (en) * | 2015-10-30 | 2016-02-17 | 安徽欧瑞达电器科技有限公司 | Split type high-temperature drying device |
| CN105918431A (en) * | 2016-04-25 | 2016-09-07 | 唐玉敏 | Drying room utilizing diversified polymerization heat and operation method of drying room |
| CN106524583A (en) * | 2016-12-22 | 2017-03-22 | 广东申菱环境系统股份有限公司 | Household dehumidify and drying integrated machine |
| CN107388737A (en) * | 2017-09-15 | 2017-11-24 | 山东三土能源股份有限公司 | A kind of air energy heat pump baking room |
| CN107439661A (en) * | 2017-07-01 | 2017-12-08 | 鲁东大学 | A kind of dehumidification control method of the fillet class seafood tunnel drying system based on heat pump |
| CN110447942A (en) * | 2019-08-07 | 2019-11-15 | 珠海格力电器股份有限公司 | The dehumanization method and heat pump baking equipment of heat pump baking equipment |
| CN110762968A (en) * | 2019-11-06 | 2020-02-07 | 江阴国能绿地新能源科技有限公司 | Air source heat pump drying device and drying method thereof |
| CN111084404A (en) * | 2020-03-14 | 2020-05-01 | 河南省恒景环境科技有限公司 | Tobacco leaf oven convenient to gas adsorption detects |
-
2011
- 2011-12-07 CN CN2011205038473U patent/CN202494280U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381303A (en) * | 2012-05-04 | 2013-11-06 | 大韩电机工业(株) | Condensing device employing direction-switching mode |
| CN103381303B (en) * | 2012-05-04 | 2015-07-15 | 大韩电机工业(株) | Condensing device employing direction-switching mode |
| CN102960842A (en) * | 2012-11-16 | 2013-03-13 | 东莞市正旭新能源设备科技有限公司 | Tobacco dryer with dehumidification evaporator |
| CN103968658A (en) * | 2013-02-02 | 2014-08-06 | 成都市东和兴科节能技术研究所 | Drying device by adopting water circulation heating of air source heat pump and water circulation condensation and dehumidification |
| CN103968658B (en) * | 2013-02-02 | 2016-05-18 | 成都市东和兴科节能技术研究所 | A kind of air source heat pump water circulation heating and water circulation dehumidification by condensation drying unit |
| CN104019643A (en) * | 2013-02-28 | 2014-09-03 | 中国科学院理化技术研究所 | Agricultural product heat pump drying system with waste heat recovery function |
| CN104336736A (en) * | 2013-08-10 | 2015-02-11 | 广州九恒新能源有限公司 | Domestic multifunctional drying machine |
| CN103453759A (en) * | 2013-08-22 | 2013-12-18 | 南京翠波新能源发展有限公司 | Air source heat pump water circulation heat exchange drying system |
| CN103900356B (en) * | 2014-03-13 | 2016-04-20 | 甘肃金佑康药业科技有限公司 | A kind of condensing type hot-air circulating drying device |
| CN103900356A (en) * | 2014-03-13 | 2014-07-02 | 甘肃金佑康药业科技有限公司 | Condensing type hot air circulation drying device |
| CN104964525A (en) * | 2015-07-01 | 2015-10-07 | 天津市傲绿农副产品集团股份有限公司 | Heat pump type fruit and vegetable drying machine |
| CN105333718A (en) * | 2015-10-30 | 2016-02-17 | 安徽欧瑞达电器科技有限公司 | Split type high-temperature drying device |
| CN105333717A (en) * | 2015-10-30 | 2016-02-17 | 安徽欧瑞达电器科技有限公司 | Integrated high-temperature dehumidifying and drying device |
| CN105918431A (en) * | 2016-04-25 | 2016-09-07 | 唐玉敏 | Drying room utilizing diversified polymerization heat and operation method of drying room |
| CN106524583A (en) * | 2016-12-22 | 2017-03-22 | 广东申菱环境系统股份有限公司 | Household dehumidify and drying integrated machine |
| CN107439661A (en) * | 2017-07-01 | 2017-12-08 | 鲁东大学 | A kind of dehumidification control method of the fillet class seafood tunnel drying system based on heat pump |
| CN107388737A (en) * | 2017-09-15 | 2017-11-24 | 山东三土能源股份有限公司 | A kind of air energy heat pump baking room |
| CN110447942A (en) * | 2019-08-07 | 2019-11-15 | 珠海格力电器股份有限公司 | The dehumanization method and heat pump baking equipment of heat pump baking equipment |
| CN110762968A (en) * | 2019-11-06 | 2020-02-07 | 江阴国能绿地新能源科技有限公司 | Air source heat pump drying device and drying method thereof |
| CN111084404A (en) * | 2020-03-14 | 2020-05-01 | 河南省恒景环境科技有限公司 | Tobacco leaf oven convenient to gas adsorption detects |
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