CN106562466A - Intensive type curing barn capable of realizing afterheat recycling and zero pollutant emission - Google Patents
Intensive type curing barn capable of realizing afterheat recycling and zero pollutant emission Download PDFInfo
- Publication number
- CN106562466A CN106562466A CN201610913522.XA CN201610913522A CN106562466A CN 106562466 A CN106562466 A CN 106562466A CN 201610913522 A CN201610913522 A CN 201610913522A CN 106562466 A CN106562466 A CN 106562466A
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- Prior art keywords
- heat
- heat exchanger
- heat recovery
- cigarette
- air
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Classifications
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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
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
-
- 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
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Central Heating Systems (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses an intensive type curing barn capable of realizing afterheat recycling and zero pollutant emission. The curing barn comprises a barn body, an air source heat pump, an afterheat recycling device and a circulating fan, wherein the barn body comprises a heating room and a tobacco placement room; the air source heat pump comprises an outdoor main machine, a phase change heat storage type condenser and a connecting pipeline; and the indoor main machine comprises a compressor, an evaporator and a capillary tube. The air source heat pump, used as heating equipment, has zero pollutant emission in the use process, and is automatically controlled in the whole process, so that labor intensity in tobacco curing is greatly lowered; by virtue of the frequency conversion type compressor, the heat load can be flexibly adjusted; by virtue of the phase change heat storage type condenser, the hot air temperature output is stable, so that temperature fluctuation in the curing barn is low; meanwhile, by virtue of a heat storage material, the size of a heat exchanger can be reduced to a relatively high extent; the afterheat recycling device can effectively utilize heat dissipation loss in a dehumidifying process; and by virtue of a heat preservation and insulation layer on the ground below the tobacco placement room, the ground heat dissipation loss can be greatly reduced.
Description
Technical field
The present invention relates to a kind of intensive baking room with waste heat recovery zero emission, more particularly to it is a kind of suitable for cigarette
The barn of leaf baking.
Background technology
Most cured tobacco curing house firing equipment is in accordance with domestic cigarettes and does [2009] No. 418 processing and manufacturings at present, is one
Kind typical handwarmer, in Tobacco Leaf Curing, need baking personnel frequently toward stoking in burner hearth, and this combustion furnace lacks
Putting is：Efficiency of combustion is low, and fuel consumption is big, and coal-fired process can supervene substantial amounts of pollutant such as SO2, solid waste, powder
Dirt etc.；Operationally, special messenger to be had is toward burner hearth stoking, bothersome laborious, if stoking is not in time, can cause cigarette-filling house's temperature wave
It is dynamic big, have a strong impact on the quality of tobacco flue-curing.Using air source heat pump as tobacco flue-curing firing equipment, it is possible to achieve Nicotiana tabacum L.
The full-automation of baking, can realize tobacco flue-curing zero emission in Tobacco Leaf Curing, it is also possible to substantially reduce Nicotiana tabacum L. baking
Roasting labor intensity.
The content of the invention
To solve the defect that current intensive baking room coal combustion furnace is present, the invention provides a kind of environmental protection and energy saving are laborsaving
The intensive baking room with waste heat recovery zero emission.
In order to solve above-mentioned technical problem, following technical scheme is present invention employs：
A kind of intensive baking room with waste heat recovery zero emission, including room body, air source heat pump, waste-heat recoverer
And circulating fan；
The room body includes heating chamber and cigarette-filling house, and three layers of cigarette-placing rack are arranged in the cigarette-filling house；
The air source heat pump includes outdoor host computer, phase-change heat-storage condenser and connecting pipe；The outdoor host computer bag
Compressor, vaporizer and capillary tube are included, outdoor host computer is placed on the side of heating chamber exterior wall, and the compressor is compressed for frequency conversion type
Machine；Medium position of the phase-change heat-storage condenser slant setting in heating chamber, the heat exchange of the phase-change heat-storage condenser
Pipeline is obliquely installed, and, near one end of cigarette-filling house higher than the other end near heating chamber exterior wall, phase-change heat-storage is cold for heat exchange pipeline
Jagged fin is set outside condenser heat exchange pipeline, phase-change heat-storage condenser heat-exchange pipes road built with regenerator temperature be 60～
100 DEG C of low-temperature heat accumulating material, cold-producing medium copper pipe are wrapped up by low-temperature heat accumulating material；
The waste-heat recoverer is arranged on heating chamber bottom, and the waste-heat recoverer includes heat recovery heat exchanger A and remaining
Heat recovering heat exchanger B is constituted, and hot air circulation duct, the heat are formed between heat recovery heat exchanger A and heat recovery heat exchanger B
Wind circulation air path is communicated with heating chamber；The outer end of the heat recovery heat exchanger B arranges wind cabin, the heat recovery heat exchanger
The cold air inlet communicated with wind cabin, air inlet and the wind cabin phase of the cool air hose in heat recovery heat exchanger B are set on the outer face of B
It is logical；Air inlet of the wind cabin of the heat recovery heat exchanger B by the cool air hose in cold wind bypass passage and heat recovery heat exchanger A
Mouth is communicated；Cool air hose outlet in the heat recovery heat exchanger A and heat recovery heat exchanger B is communicated with hot air circulation duct；
Damp and hot sky is respectively formed between cool air hose between cool air hose in the heat recovery heat exchanger A and in heat recovery heat exchanger B
The bottom of gas passage, the damp-heat air channel entrance in the heat recovery heat exchanger A and heat recovery heat exchanger B and cigarette-filling house
Communicate, damp-heat air channel outlet is directly communicated with the dehumidifying door being discharged in air；
The circulating fan is arranged on the top of heating chamber, and the air inlet of the circulating fan is communicated with heating interior, institute
The gas outlet for stating circulating fan is communicated with the top of cigarette-filling house.
Used as a preferred embodiment of the present invention, the ground below the cigarette-filling house is provided with one layer of heat preservation thermal insulation layer, described
The thickness of heat insulation layer is 18-22mm, and the heat insulation layer is extruded polystyrene foam board.
It is as another kind of preferred version of the present invention, cold in the heat recovery heat exchanger A and heat recovery heat exchanger B
Jagged fin is set on the inwall of airduct.
Used as another preferred version of the present invention, the low-temperature heat accumulating material is Mg (NO3)2﹒ 6H2O or MgCl2﹒
6H2O。
Compared with prior art, the invention has the advantages that：
1st, using air source heat pump as tobacco flue-curing firing equipment, without any pollutant in Tobacco Leaf Curing
Discharge, compared with currently used most commonly used coal combustion furnace, more green, environmentally friendly, energy-conservation.
2nd, three section of six step formula baking process that tobacco flue-curing is adopted, larger, the air source heat pump of required load of heat fluctuation
The compressor for being used be frequency-changeable compressor, can flexible thermic load, can preferably meet thermic load needed for barn.
3rd, phase-change heat-storage condenser causes hot air temperature output to stablize, and in barn, temperature fluctuation is little, and Flue-cured tobacco Quality is more
Good, phase change heat storage material can reduce the volume size of heat exchanger, run into unexpected power-off and can continue to the roasting of a period of time
Room temperature, is that the work of auxiliary equipment electrical power generators is raced against time, reduces impact of the power-off to baking quality of tobacco.
4th, in Tobacco Leaf Curing, dehumidifying radiation loss accounts for the 12% of total heat loss ratio, and waste-heat recoverer can be inhaled
The heat for receiving the wet-hot steam of tobacco flue-curing dehumidifying process carrys out heating cold air, can greatly reduce dehumidifying heat loss, reduces cigarette
The total energy consumption of leaf baking.
5th, the heat insulation layer on the ground below cigarette-filling house can reduce the radiation loss on ground.
Description of the drawings
Fig. 1 is a kind of structural representation of the intensive baking room with waste heat recovery zero emission；
Structural representations of the Fig. 2 for phase-change heat-storage condenser；
Structural representations of the Fig. 3 for waste-heat recoverer.
In figure：1-outdoor host computer；2-phase-change heat-storage condenser；3-circulating fan；4-heating chamber；5-cigarette-placing rack；
6-cigarette-filling house；7-cold air inlet；8-heat accumulating type condenser inlet；9-low-temperature heat accumulating material；10-heat accumulating type condenser goes out
Mouthful；11-cold-producing medium copper pipe；12-fin；13-cold wind bypass line；14-heat recovery heat exchanger A；15-hot air circulation
Air channel；16-heat recovery heat exchanger B；17-wind cabin.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in further detail.
As shown in figure 1, a kind of intensive baking room with waste heat recovery zero emission, including room body, air source heat pump,
Waste-heat recoverer and circulating fan 3.Room body includes heating chamber 4 and cigarette-filling house 6, and three layers of cigarette-placing rack 5 are arranged in cigarette-filling house 6.Dress cigarette
Ground below room 6 is provided with one layer of heat preservation thermal insulation layer, and the thickness of heat insulation layer is 18-22mm, and heat insulation layer is that extrusion molding gathers
Styrenic foams plate.
Air source heat pump includes outdoor host computer 1, phase-change heat-storage condenser 2 and connecting pipe；Outdoor host computer 1 includes compression
Machine, vaporizer and capillary tube, outdoor host computer 1 are placed on the side of 4 exterior wall of heating chamber, and compressor is inverter compressor；Phase transformation
Medium position of 2 slant setting of heat accumulating type condenser in heating chamber 4, the heat exchange pipeline of phase-change heat-storage condenser 2 are obliquely installed,
Heat exchange pipeline is near one end of cigarette-filling house 6 higher than the other end near 4 exterior wall of heating chamber, 2 heat exchanger tube of phase-change heat-storage condenser
Jagged fin 12 is set outside road, and 2 heat exchange pipeline of phase-change heat-storage condenser is 60～100 DEG C low built with regenerator temperature
Intermediate temperature regenerator material 9, cold-producing medium copper pipe 11 are wrapped up by low-temperature heat accumulating material 9, as shown in Fig. 2 in Fig. 28 for become heat accumulating type condenser
Import, 10 are change heat accumulating type condensator outlet.It is 65 DEG C or so in view of the hot blast maximum temperature needed for Tobacco Leaf Curing,
Low-temperature heat accumulating material 9 is Mg (NO3)2﹒ 6H2O or MgCl2﹒ 6H2O, low-temperature heat accumulating material have unit mass (volume) amount of stored heat
Greatly, temperature fluctuation little (accumulation of heat, the approximate isothermal of exothermic process), the features such as chemical stability is good.
Waste-heat recoverer is arranged on 4 bottom of heating chamber, and waste-heat recoverer includes heat recovery heat exchanger A14 and waste heat recovery
Heat exchanger B16 is constituted, and forms hot air circulation duct 15, such as scheme between heat recovery heat exchanger A14 and heat recovery heat exchanger B16
Shown in 3, hot air circulation duct 15 is communicated with heating chamber 4；The outer end of heat recovery heat exchanger B16 arranges wind cabin 17, and waste heat is returned
Receive and the cold air inlet 7 communicated with wind cabin 17, the cool air hose in heat recovery heat exchanger B16 are set on the outer face of heat exchanger B16
Air inlet communicate with wind cabin 17；The wind cabin 17 of heat recovery heat exchanger B16 is changed by cold wind bypass passage 13 and waste heat recovery
The air inlet of the cool air hose in hot device A14 is communicated；Cool air hose in heat recovery heat exchanger A14 and heat recovery heat exchanger B16
Outlet is communicated with hot air circulation duct 15；Between cool air hose in heat recovery heat exchanger A14 and in heat recovery heat exchanger B16
Cool air hose between be respectively formed damp-heat air passage, the damp and hot sky in heat recovery heat exchanger A14 and heat recovery heat exchanger B16
Gas channel entrance is communicated with the bottom of cigarette-filling house 6, and damp-heat air channel outlet is directly communicated with the dehumidifying door being discharged in air.
Jagged fin is set on the inwall of the cool air hose in heat recovery heat exchanger A14 and heat recovery heat exchanger B16.
Circulating fan 3 is arranged on the top of heating chamber 4, and the air inlet of circulating fan 3 is communicated with heating chamber 4, circulated air
The gas outlet of machine 3 is communicated with the top of cigarette-filling house 6.
When there is the intensive baking room of waste heat recovery zero emission to carry out baking operation using this, heating equipment air source
Heat pump brings into operation, and circulating fan 3 coordinates air-supply, and in heating chamber 4, phase-change heat-storage condenser 2 is exchanged heat with air, is heated
Air Jing circulating fans 3 afterwards drive, and are entered in cigarette-filling house 6 by top air inlet, and the Nicotiana tabacum L. in cigarette-filling house 6 is arranged with air heat-exchange
Wet, the bottom air outlet of subsequent air Jing cigarette-filling house 6 returns to the bottom of heating chamber 4, and with heat recovery heat exchanger A14 and remaining
The cold wind in cool air hose in heat recovering heat exchanger B16 carries out heat exchange, completes hot air circulation, and cold wind is adding after heat exchange
Move up in hot cell 4, and contact with the fin 12 on phase-change heat-storage condenser 2.Upper, middle and lower three are set inside cigarette-filling house 6
Layer cigarette-placing rack 5, is uniformly suspended on after tobacco leaf pole in cigarette-placing rack 5, and 6 inside humiture of cigarette-filling house is by the full-time prison of automatic temperature control instrument
Control, when humiture is higher, dehumidifying door is automatically turned on cold-air flap, and barn extraneous air enters Jing waste-heat recoverers by cold-air flap
Hot air circulation duct is entered after preheating, while the Jing rows Jing after waste-heat recoverer with cold air heat exchange of the partial air in cigarette-filling house 6
Wet door is discharged, strictly to maintain the requirement of 6 inside baking process humiture of cigarette-filling house.
Waste-heat recoverer is made up of heat recovery heat exchanger A and heat recovery heat exchanger B, the damp and hot steaming of 6 bottom of cigarette-filling house
Vapour is finally directly discharged to from dehumidifying door by the damp-heat air passage in heat recovery heat exchanger A and heat recovery heat exchanger B
In air；At the same time, the cold-air flap of barn is directly connected with the wind cabin 17 near cold-air flap side, and cold air enters wind cabin 17
Afterwards, a part of cold air is entered directly in the heat recovery heat exchanger B near cold-air flap side, and another part cold air is from cold
Wind bypass passage 13 is entered in the heat recovery heat exchanger A away from cold-air flap side, and cold air is in heat recovery heat exchanger A and remaining
In heat recovering heat exchanger B with cool air hose outside wet-hot steam occur heat exchange after enter directly in circulation air path.
Finally illustrate, above example is only unrestricted to illustrate technical scheme, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, which all should be covered at this
In the middle of the right of invention.
Claims (4)
1. a kind of intensive baking room with waste heat recovery zero emission, it is characterised in that：Including room body, air source heat pump,
Waste-heat recoverer and circulating fan (3)；
The room body includes three layers of cigarette-placing rack (5) are arranged in heating chamber (4) and cigarette-filling house (6), the cigarette-filling house (6)；
The air source heat pump includes outdoor host computer (1), phase-change heat-storage condenser (2) and connecting pipe；The outdoor host computer
(1) including compressor, vaporizer and capillary tube, outdoor host computer (1) is placed on the side of heating chamber (4) exterior wall, the compressor
For inverter compressor；Medium position of phase-change heat-storage condenser (2) slant setting in heating chamber (4), the phase transformation
The heat exchange pipeline of heat accumulating type condenser (2) is obliquely installed, and heat exchange pipeline is near one end of cigarette-filling house (6) higher than near heating chamber
(4) other end of exterior wall, arranges jagged fin (12), phase-change heat-storage outside phase-change heat-storage condenser (2) heat exchange pipeline
Condenser (2) heat exchange pipeline is built with low-temperature heat accumulating material (9) that regenerator temperature is 60～100 DEG C, cold-producing medium copper pipe (11) quilt
Low-temperature heat accumulating material (9) is wrapped up；
The waste-heat recoverer is arranged on heating chamber (4) bottom, the waste-heat recoverer include heat recovery heat exchanger A (14) and
Heat recovery heat exchanger B (16) is constituted, and forms hot blast between heat recovery heat exchanger A (14) and heat recovery heat exchanger B (16)
Circulation air path (15), the hot air circulation duct (15) are communicated with heating chamber (4)；Outside the heat recovery heat exchanger B (16)
End arranges wind cabin (17), arranges the cold wind communicated with wind cabin (17) and enter on the outer face of the heat recovery heat exchanger B (16)
Mouth (7), the air inlet of the cool air hose in heat recovery heat exchanger B (16) are communicated with wind cabin (17)；The heat recovery heat exchanger B
(16) air inlet phase of the wind cabin (17) by the cool air hose in cold wind bypass passage (13) and heat recovery heat exchanger A (14)
It is logical；Cool air hose outlet and hot air circulation duct in the heat recovery heat exchanger A (14) and heat recovery heat exchanger B (16)
(15) communicate；Cool air hose between cool air hose in the heat recovery heat exchanger A (14) and in heat recovery heat exchanger B (16)
Between be respectively formed damp-heat air passage, the damp and hot sky in the heat recovery heat exchanger A (14) and heat recovery heat exchanger B (16)
Gas channel entrance is communicated with the bottom of cigarette-filling house (6), damp-heat air channel outlet directly with the dehumidifying door phase being discharged in air
It is logical；
The circulating fan (3) is arranged on the top of heating chamber (4), and the air inlet of the circulating fan (3) is interior with heating chamber (4)
Communicate, the gas outlet of the circulating fan (3) is communicated with the top of cigarette-filling house (6).
2. a kind of intensive baking room with waste heat recovery zero emission according to claim 1, it is characterised in that：Institute
State the ground below cigarette-filling house (6) and be provided with one layer of heat preservation thermal insulation layer, the thickness of the heat insulation layer is 18-22mm, the guarantor
Warm thermal insulation layer is extruded polystyrene foam board.
3. a kind of intensive baking room with waste heat recovery zero emission according to claim 1, it is characterised in that institute
On the inwall for stating the cool air hose in heat recovery heat exchanger A (14) and heat recovery heat exchanger B (16), jagged fin is set.
4. a kind of intensive baking room with waste heat recovery zero emission according to claim 1, it is characterised in that：Institute
Low-temperature heat accumulating material (9) is stated for Mg (NO3)2﹒ 6H2O or MgCl2﹒ 6H2O。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913522.XA CN106562466B (en) | 2016-10-20 | 2016-10-20 | A kind of intensive baking room with waste heat recovery zero emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913522.XA CN106562466B (en) | 2016-10-20 | 2016-10-20 | A kind of intensive baking room with waste heat recovery zero emission |
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| CN106562466A true CN106562466A (en) | 2017-04-19 |
| CN106562466B CN106562466B (en) | 2017-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610913522.XA Expired - Fee Related CN106562466B (en) | 2016-10-20 | 2016-10-20 | A kind of intensive baking room with waste heat recovery zero emission |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107087808A (en) * | 2017-06-14 | 2017-08-25 | 张建柱 | A kind of tobacco flue-curing house |
| CN110419452A (en) * | 2019-08-07 | 2019-11-08 | 镇宁德康农牧有限公司 | A kind of pig house with wind circulation regulating and controlling temperature |
| CN112220096A (en) * | 2020-10-15 | 2021-01-15 | 贵州工程应用技术学院 | A waste heat recovery device for flue-cured tobacco baking house |
| CN115624202A (en) * | 2022-10-24 | 2023-01-20 | 青岛海尔空调电子有限公司 | Curing barn and heat pump drying system for drying materials |
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| US20030145867A1 (en) * | 2002-02-01 | 2003-08-07 | Bokelman Gordon Herman | Apparatus and method for air curing tobacco |
| CN103222674A (en) * | 2012-09-12 | 2013-07-31 | 遵义市烟草公司绥阳县分公司 | Curing barn for utilizing solar energy and recycling curing and dehumidification gas waste heat in curing barn |
| CN104826460A (en) * | 2015-04-30 | 2015-08-12 | 河南省烟草公司三门峡市公司 | Dedusting and desulphurization system of bulk curing barn for tobacco leaves and dedusting and desulphurization method |
| CN204579872U (en) * | 2014-12-30 | 2015-08-26 | 湖北科阳节能设备有限公司 | A kind of high temperature heat pump waste heat recovery tobacco flue-curing house |
| CN205250334U (en) * | 2015-11-10 | 2016-05-25 | 中国烟草总公司广东省公司 | Waste heat recovery's solar energy tobacco flue -curing house |
-
2016
- 2016-10-20 CN CN201610913522.XA patent/CN106562466B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030145867A1 (en) * | 2002-02-01 | 2003-08-07 | Bokelman Gordon Herman | Apparatus and method for air curing tobacco |
| CN103222674A (en) * | 2012-09-12 | 2013-07-31 | 遵义市烟草公司绥阳县分公司 | Curing barn for utilizing solar energy and recycling curing and dehumidification gas waste heat in curing barn |
| CN204579872U (en) * | 2014-12-30 | 2015-08-26 | 湖北科阳节能设备有限公司 | A kind of high temperature heat pump waste heat recovery tobacco flue-curing house |
| CN104826460A (en) * | 2015-04-30 | 2015-08-12 | 河南省烟草公司三门峡市公司 | Dedusting and desulphurization system of bulk curing barn for tobacco leaves and dedusting and desulphurization method |
| CN205250334U (en) * | 2015-11-10 | 2016-05-25 | 中国烟草总公司广东省公司 | Waste heat recovery's solar energy tobacco flue -curing house |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107087808A (en) * | 2017-06-14 | 2017-08-25 | 张建柱 | A kind of tobacco flue-curing house |
| CN110419452A (en) * | 2019-08-07 | 2019-11-08 | 镇宁德康农牧有限公司 | A kind of pig house with wind circulation regulating and controlling temperature |
| CN112220096A (en) * | 2020-10-15 | 2021-01-15 | 贵州工程应用技术学院 | A waste heat recovery device for flue-cured tobacco baking house |
| CN115624202A (en) * | 2022-10-24 | 2023-01-20 | 青岛海尔空调电子有限公司 | Curing barn and heat pump drying system for drying materials |
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| Publication number | Publication date |
|---|---|
| CN106562466B (en) | 2017-11-21 |
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