CN201523654U - Tobacco flue-curing room using air source heat pump as heat source - Google Patents
Tobacco flue-curing room using air source heat pump as heat source Download PDFInfo
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- CN201523654U CN201523654U CN2009200661437U CN200920066143U CN201523654U CN 201523654 U CN201523654 U CN 201523654U CN 2009200661437 U CN2009200661437 U CN 2009200661437U CN 200920066143 U CN200920066143 U CN 200920066143U CN 201523654 U CN201523654 U CN 201523654U
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Abstract
The utility model discloses a tobacco flue-curing room which uses an air source heat pump as a heat source, which comprises a heating chamber with a fresh air opening, and a drying chamber with a temperature probe and a humidity probe. A humidity elimination opening is provided above the flue-curing room. The tobacco flue-curing room further comprises the air source heat pump and a condenser fan. The range of a ratio between the heat exchange area of the condenser and the input power of the compressor is 7-13.5m2/KW. The condenser and a suction type air supply fan device are provided in the heating chamber. The drying chamber and/or the heating chamber are provided with heat insulation layers. The tobacco flue-curing room uses the air source heat pump and the solar energy as novel heat sources of tobacco flue-curing room and has the advantages of energy saving, normal and smooth operation of the system, high energy efficiency ratio, convenient control, higher temperature of the supplied hot wind, greatly expanded application range of the air source heat pump and the solar energy, and facilitation for energy saving and environment protecting. Furthermore the sulfur content in atmosphere, soil and tobacco leaf can be reduced and the quality of tobacco leaf can be increased when the technique is generalized at the tobacco producing area for wide range.
Description
Technical field
The utility model relates to the barn that grows tobacco, and especially a kind of is the tobacco barn of thermal source with the air source heat pump.
Background technology
As a tobacco big producing country, China's baking technology and equipment for a long time is all quite backward, owing to the economic loss that influenced by tobacco workmanship to cause is difficult to estimate.Tobacco grower's flue-cured tobacco carries out operation high season at temperature in summer; traditional technology is coal-fired heating; coal is emitted heat in combustion chambers burn (heating clamber of a barn generally contains several combustion chambers); body of heater (furnace lining and furnace lining protective sleeve) is heated; the furnace lining protective sleeve connects heat exchanger tube and smokestack, and combustion gas in the combustion chamber and flue dust are discharged body of heater, heat exchanger tube and smokestack heating back.The double speed blower fan that is installed in the heating clamber top brushes heat exchanger tube, body of heater shell and heat exchanger tube and carries out heat exchange, and the hot blast of generation moves to the heating clamber bottom, touches hot blast direction of motion change at the end, enter the hothouse bottom, then move upward, tobacco leaf is toasted, heating clamber top is air-return duct, being provided with return air inlet communicates with hothouse, at this moment, because the effect of blower fan, air-return duct forms negative pressure, the hot-air of hothouse enters air-return duct through after the heating to tobacco leaf, goes round and begins again.Air-return duct is provided with fresh wind port, and the hydrofuge of flue-cured tobacco mainly enters new wind by hothouse and realizes, is provided with moisture exhausting port on barn top or top, and new air door is opened, and hothouse forms malleation, and the damp-heat air behind the flue-cured tobacco is discharged from moisture exhausting port.Existing barn defective is:
1, energy consumption height, Energy Efficiency Ratio is low, and waste residue, waste gas that waste resource, burning produce cause environmental pollution, especially what deserves to be mentioned is SO
2Meeting contaminated soil behind the formation acid rain increases and the quality reduction tobacco leaf sulfur content of cultivation.The sulfur content normal value is between the 0.2-0.7 in the tobacco leaf, and the sulfur content height influences flammability, and cigarette is held firepower and reduced.
2, the flue-cured tobacco heat temperature raising is to a high temperature-rise period slowly from low, because the hysteresis quality of coal-fired heating, when temperature reaches a certain setting value, stop to heat up, even turn off the combustion chamber air door, temperature also can continue to rise, and influences flue-cured tobacco and quality, can only regulate the temperature of the tobacco leaf environment of hothouse by increasing new wind, cause energy waste and influence the humidity control of tobacco leaf environment.
The baking of tobacco leaf is not to be a simple dry run, is broadly divided into flavescence, fixation, dried muscle three phases in the baking process, and the baking condition of each stage to barn all has different requirements, but obviously there is deficiency in existing apparatus.As in " flavescence " stage, hothouse tobacco leaf environment temperature generally at 33 ℃-42 ℃ (according to the tobacco leaf of upper, middle and lower different parts, determine the lower limit temperature of flavescence), hothouse installs heat temperature raising behind the fresh tobacco leaf, want 3-4 hour, could arrive the lower limit temperature that the tobacco leaf changing yellow stage requires, expend time in, and increased wind brushing fresh tobacco leaf.As in " fixation " stage,, there is not timely coal if several combustion chamber is changed coal simultaneously or people on duty has delayed, the temperature of hothouse is sharply descended, flue cured tobacco quality is impacted, the steam in the hothouse is met the cold formation globule, on tobacco leaf, " dust " phenomenon appears.The poor quality of coal also can impact flue cured tobacco quality.
3, labour intensity is big: under the hot weather, one room cigarette is in reaching several days flue-cured tobacco process, each barn all needs the special messenger scene to keep an eye on, and regulates fresh wind port or moisture exhausting port aperture, the state of combustion chamber coal combustion is adjusted, and changes a dant, transports cinder etc. in several hours.When the tobacco grower is worth night shift, often because of oversleeping, fail timely coal, flue cured tobacco quality is impacted.
Air source heat pump mainly is made up of evaporimeter, compressor, condenser, main throttling arrangement, and connects with the working medium circulating line in regular turn.Its adopts electric energy to drive according to contrary Carnot cycle principle, by heat-transfer working medium the low grade heat energy that can't be utilized in the air is effectively absorbed, and it is promoted to available high-grade heat energy is used.Its course of work: 1. heat-transfer working medium enters evaporimeter, and working medium heat absorption evaporation in evaporimeter entered compressor after this moment, working medium absorbed heat from low-temperature heat source; 2. after the compression of working medium process compressor, the intensification, the working medium that becomes high temperature, high pressure is discharged compressor; 3. working medium enters condenser, other media of that part of heat transferred that heat that will absorb from evaporimeter in condenser and the power consumption of compressor own are produced; 4. enter evaporimeter once more, periodic duty constantly according to this after the high-pressure working medium process throttling arrangement throttling step-down.For system's operation steady in a long-term, heat pump also comprises some known servicing units, as fluid reservoir, gas-liquid separator, filter etc.Is that air-conditioning heats with air source heat pump as the typical case of thermal source utilization, it be comfortable with the body sense of regulating health be purpose, during 12 ℃ of environment temperatures, air heats in indoor form with circulated air, indoor maximum temperature can only reach about 30 ℃, and Energy Efficiency Ratio is about 2.4.
The utility model content
In order to solve above-mentioned drawback, technical problem to be solved in the utility model is, a kind of tobacco barn of energy-saving and environmental protection is provided, and adjustment is convenient rapidly, and can significantly alleviate labor intensity of operating staff.In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of is the tobacco barn of thermal source with the air source heat pump, comprise that by the bottom be the hothouse and the heating clamber of air-return duct for top, air delivery duct, described heating clamber is provided with fresh wind port, described hothouse is provided with temp probe, described barn top is provided with moisture exhausting port, it is characterized in that, described barn also comprises air source heat pump and condenser fan, and the span of the condenser heat exchange area of described air source heat pump and the ratio of compressor power input is at 7-13.5m
2Between/the kw, the condenser device of described air source heat pump is in described heating clamber; Described condenser fan is the air draught type air-supply; Described hothouse and/or heating clamber are provided with heat-insulation layer.
Adopt technique scheme, replace original thermal source as thermal source, make the cured tobacco curing house energy saving significantly improve with air source heat pump, non-environmental-pollution, heating realizes control automatically, and is easy to operate.
But the condenser heat exchange area that existing air source heat pump adopts is less, causes that the heat-carrying capacity of condenser and exchange capability of heat are limited, heat exchange efficiency is lower.Under the environment temperature condition with higher, the heat of absorption can not be exported timely and effectively, causes duplex matter system internal temperature, hypertonia; compressor is operation continuously under high pressure conditions; overvoltage protection frequently occurs and shut down, system can not normally move, and is difficult to the purpose that reaches dry.Preferred by test of many times, to add thermal effect, take all factors into consideration problems such as manufacturing process feasibility and production cost, selectivity increases the condenser heat exchange area, and its heat-carrying capacity and exchange capability of heat are increased, and the heat that evaporimeter absorbed is able to effective output.This technical scheme has realized that preferably working medium heats up and the balance of output heat energy.When heating, temperature more than 70 ℃ can guarantee the even running of system.The application requirements that has adapted to cured tobacco curing house preferably.Simultaneously, in order further to guarantee effective output of heat, as of the present utility model a kind of preferred, described condenser fan total head is between 140-420Pa, and the air outlet wind speed is between 8.5-22m/s.
At the yellowing stage of tobacco workmanship, decide programming rate according to the concrete condition of tobacco leaf.(wanting more than 2 hours at a distance of the time of 1 ℃ of every intensification) at this moment, the fresh tobacco leaf of hothouse also has life, and after the temperature that is heated to the flavescence requirement, blower fan wants appropriateness to shut down, and uses the low or first gear air feed in the available machine time.The minimizing hot blast brushes fresh tobacco leaf, serves as the large amount of organic matter that keeps life state to consume to reduce in its body.Traditional fire coal heating can't realize, because blower fan stops, can make heating clamber assemble a large amount of heats, when opening blower fan again, can make the hothouse temperature rise 2-3 ℃ rapidly, influences the tobacco leaf flavescence.Then be easy to realize above-mentioned purpose with air source heat pump, so, use the air source heat pump baking tobacco leaves can increase production about 5%, quality increases, and energy-conserving and environment-protective, helps reducing the metal fatigue of blower fan, improves blower fan service life.
In order effectively to reduce the loss of wind, described condenser fan adopts the air draught type air-supply, as further optimization, is provided with wind deflector between described air delivery duct and the blower fan.
For the ease of control, as a kind of improvement, described hothouse also is provided with moisture probe.
Enter " fixation " during the stage, carry out effective hydrofuge to tobacco leaf, hydrofuge need inject hothouse with a large amount of new wind heating backs.As the improvement means of the further raising thermal efficiency, described moisture exhausting port top is provided with waste-heat recovery device.With heat conductivility preferably material make endothermic tube, be positioned over moisture exhausting port top, damp-heat air heating inner air tube, one end of endothermic tube connects the air-return duct of fresh wind port or described circulation air path, the other end is installed ventilating fan, opens ventilating fan, and heated air in the endothermic tube is sent into air-return duct; In the bottom of described endothermic tube the condensate water guide plate is set, avoids the condensed water after endothermic tube absorbs heat to flow in the hothouse.
Enter " dried muscle " stage, for helping keeping fragrance matter in the tobacco leaf to greatest extent, when the hothouse temperature arrives 62-65 ℃, require to increase certain temperature retention time, dry tobacco leaf grain in temperature-rise period slowly keeps fragrance matter.Existing apparatus will be realized this requirement, needs the high-quality of tobacco grower to guarantee.Because require the tobacco grower spend more man-hour, spend more fuel finish one in tobacco purchasing examination valuation but important index be not easy to realize very much.Use the technical solution of the utility model can satisfy above-mentioned requirements fully, control this process from control program.Temperature rise to 66 ℃ is rapidly heated 68 ℃-72 ℃ later on, satisfies dried muscle requirement.
Because flue-cured tobacco carried out in summer, had abundant solar energy resources.Improve as another kind, described barn also comprises solar energy heat collector, comprises the solar water heater, hot water heat exchanger, the circulating pump that are connected by water circulating pipe in regular turn, and described hot water heat exchanger is installed on heating clamber inner condenser air intake place front end.
Solar water heater is to utilize the device of solar energy with the water heating, mainly is made up of all-glass vacuum thermal-collecting tube, storage tank, support and related accessories.Be applied to cured tobacco curing house as a kind of auxiliary thermal source, in the period that can obtain solar energy, saves energy has very high Energy Efficiency Ratio again, has further reduced energy consumption and tobacco grower's baking cost.
The solar heat water-to-water heat exchanger carries out heat exchange with new wind or return air, takes away the heat of solar energy input.Wind-warm syndrome is carried out heat exchange with condenser after improving again, and the heat that air source heat pump is carried is sent into hothouse through the air channel, and wind-warm syndrome obtains to improve once more.When preposition hot water heat exchanger can make hot blast reach the design temperature of dry needs, air source heat pump was in off position; When hot blast temperature was higher than the hothouse design temperature, hot water circulating pump and air source heat pump quit work; When hot blast temperature was lower than the hothouse design temperature or is lower than the design temperature certain value, hot water circulating pump and air source heat pump were worked simultaneously, to the hothouse heat supply.
In order to improve the application of solar energy heat collector on the air source heat pump cured tobacco curing house, as above-mentioned improved a kind of preferred, the hot water heat exchanger heat exchange area of described solar energy heat collector and the ratio of described air source heat pump compressor power input are not less than 1.3m
2/ kw; The ratio of described solar water heater all-glass vacuum thermal-collecting tube endotherm area and described air source heat pump compressor power input is not less than 1.2m
2/ kw.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the utility model preferred embodiment surface structure schematic diagram;
Fig. 2 is the utility model preferred embodiment internal structure schematic diagram.
The specific embodiment
Referring to Fig. 1, Fig. 2, a kind of preferred structure of reflection the utility model.Described tobacco barn comprises hothouse 1 and the heating clamber 16 that is communicated with by air delivery duct 10 and air-return duct 2, described heating clamber 16 is provided with fresh wind port 14, described heating clamber 16 tops are provided with closable moisture exhausting port 15, waste-heat recovery device is installed in moisture exhausting port 15 tops, comprise endothermic tube 4, condensate water guide plate 5 and damp-heat air deflector 3, one end of endothermic tube 4 connects air-return duct, and the other end is installed ventilating fan.Described barn also comprises air source heat pump 18 and condenser fan 8, and the span of the heat exchange area of the condenser 7 of described air source heat pump 18 and the ratio of compressor power input is at 7-15m
2Between/the kw, the condenser 7 of described air source heat pump 18 and suction-type breeze fan 8 devices thereof are in described heating clamber 16; Described hothouse 1 and/or heating clamber 16 are provided with heat-insulation layer; Described hothouse 1 is provided with the measuring probe of temperature, humidity.Be provided with wind deflector 9 between described air delivery duct 10 and the blower fan 8.Described hothouse 1 bottom is provided with wind deflector 11, and the base plate 12 of hothouse 1 is provided with equally distributed slit and is beneficial to balanced ventilation, and described hothouse 1 is provided with dress cigarette door 13.This preferred structure also is provided with solar energy heat collector, comprises the solar water heater 17, hot water heat exchanger 6, the circulating pump 20 that are connected by water circulating pipe 19 in regular turn, and hot water heat exchanger 6 is installed on heating clamber 16 inner condensers 7 air intake place front ends.
Adopt this device baking middle part tobacco leaf when 25 ℃-36 ℃ of environment temperatures, flue-cured tobacco is by flavescence, fixation, dried muscle technology.Between 34 ℃-42 ℃ of the flavescence temperature, be the fixation stage about 43 ℃-54 ℃, 55 ℃-72 ℃ is the dried muscle stage; The hothouse specification is: long 4.2m, and wide 2.7m, high 3.4m, condenser fan are the double speed blower fan of a power 1.5KW, several different technologies scheme bakings contrast with the power consumption situation of weight tobacco leaf:
One, only enables air source heat pump heating, compressor power input 6KW, evaporator area 36m
2, evaporator fan 250W, condenser heat exchange area are 48.6m
2, stoving time 104 hours, power consumption 531 degree, the tobacco leaf 155kg of oven dry, toasting one kilogram of dry tobacco leaf power consumption is 3.42 degree/kg.
Two, enable solar-heating on the air source heat pump basis, increase circulation pump power 125W, the hot water heat exchanger heat exchange area is 10.5m
2, attemperater 2m
3, 200 of the thermal-collecting tubes of all-glass vacuum oven dry, collector area 0.1m
2/ root, stoving time 103 hours, power consumption 431 degree, oven dry tobacco leaf 154kg, 2.8 degree/kg power consumptions.
Three, on air source heat pump and solar energy basis, enable waste-heat recovery device, 20 of heat absorption airducts, heat exchange area 18m
2, airduct area of section 0.22m
2, ventilating fan power 100w, stoving time 101 hours, power consumption 385.5 degree, the tobacco leaf 156kg of oven dry, toasting one kilogram of dry tobacco leaf power consumption is 2.47 degree/kg.
Four, in order to contrast above-mentioned utility model effect, adopt the resistive element heating to carry out heat supply, do not enable above-mentioned one, two, three described technical scheme, stoving time is 102 hours, power consumption reaches 923 degree, the tobacco leaf 156kg of oven dry, and toasting one kilogram of dry tobacco leaf power consumption is 6.23 degree/kg.
Five, in order to contrast above-mentioned utility model effect, under the condition of same hothouse, only use coal-fired heating, oven dry tobacco leaf 148kg, stoving time 106 hours, blower fan power consumption 110 is spent, and consumes the coal 245kg of 7800 kilocalories, coal power generation 3000 degree according to 7000 kilocalorie heats per ton are converted, one kilogram of dry tobacco leaf power consumption of its baking is 5.54 degree/kg, adds fan power consumption 0.74 degree/kg, adds up to 6.28 degree/kg.
Six, enable the two thermals source of solar energy and air source heat pump, the compressor power input 6KW of air source heat pump, evaporator area 36m
2, evaporator fan 250W, condenser heat exchange area are 42m
2Solar energy heat collector circulation pump power 125W, hot water heat exchanger heat exchange area are 15m
2, attemperater 2m
3, 200 of the thermal-collecting tubes of glass evacuated oven dry, collector area 0.1m
2/ root.Stoving time 108 hours, power consumption 462 degree, the tobacco leaf 155kg of oven dry, toasting one kilogram of dry tobacco leaf power consumption is 2.98 degree/kg.
Explanation about heat exchange area calculating:
1, evaporimeter, condenser tube plate heat interchanger and hot water heat exchanger heat exchange area computing formula:
F=2 (a * b * L/S-π/4 * d
2* T)+π dST[formula in: length (mm) S-spacing of fin (mm) the L/S-fin sheet of the total hole count L-finned tube of F-heat exchange area T-fin is counted diameter (mm) behind a-finned length (mm) b-fin width (mm) the d-fin hole forming]
2, the effective heat exchange area of fin: working medium is by copper pipe and fin heat exchange, and the effective heat exchange area of evaporimeter, condenser fin is: in 9.2 times the scope of the interior working medium cross-sectional flow area of copper pipe.
3, heat exchange area described in the utility model all is meant the heat exchange area of pipe type heat exchanger.
The all-glass vacuum thermal-collecting tube collector area is calculated: pipe range is taken advantage of diameter.
4, the ratio of condenser heat exchange area and compressor rated power exceeds 13.5m
2Behind/the kw, the condenser heat exchange area that increases is to improving the not obviously effect of heat exchange efficiency and air outlet temperature, meeting causes compressor load increase, systematic energy efficiency ratio that certain reduction is arranged because area increases, the working medium pipeline increases, the working medium consumption increases, and also can increase windage.
In sum, adopt the technical solution of the utility model, as the novel heat source of tobacco barn, saved the energy with air source heat pump and solar energy.Significantly reduced heat energy loss.And normally even running of system, the Energy Efficiency Ratio height is controlled conveniently, has realized the utility model purpose fully.The hot blast temperature that the utility model provides is higher, makes the range of application of air source heat pump and solar energy obtain great expansion, and energy savings, protection environment are had positive effect.And promote the use of the sulfur content that present technique can reduce atmosphere, soil and tobacco leaf on a large scale producing the cigarette district, improve quality of tobacco.
The above-mentioned embodiment that the utility model is described only is for the technical solution of the utility model clearly is described, and can not be interpreted as the utility model is made any restriction.The utility model has known multiple alternative or distortion in the present technique field, under the prerequisite that does not break away from the utility model essential meaning, all fall into protection domain of the present utility model.
Claims (8)
1. one kind is the tobacco barn of thermal source with the air source heat pump, comprise that the bottom is the hothouse and the heating clamber of air-return duct for top, air delivery duct, described heating clamber is provided with fresh wind port, described hothouse is provided with temp probe, described barn top is provided with moisture exhausting port, it is characterized in that described barn also comprises air source heat pump and condenser fan, the span of the condenser heat exchange area of described air source heat pump and the ratio of compressor power input is at 7-13.5m
2Between/the kw, the condenser device of described air source heat pump is in described heating clamber; Described condenser fan is the air draught type air-supply; Described hothouse and/or heating clamber are provided with heat-insulation layer.
2. as claimed in claim 1 a kind of be the tobacco barn of thermal source with the air source heat pump, it is characterized in that described condenser fan total head is between 140-420Pa, the air outlet wind speed is between 8.5-22m/s.
3. as claimed in claim 1 a kind of be the tobacco barn of thermal source with the air source heat pump, it is characterized in that, be provided with wind deflector between described air delivery duct and the blower fan.
4. as claimed in claim 1 a kind of be the tobacco barn of thermal source with the air source heat pump, it is characterized in that described hothouse is provided with moisture probe.
As claim 1-4 each described a kind of be the tobacco barn of thermal source with the air source heat pump, it is characterized in that described moisture exhausting port top is provided with waste-heat recovery device.
6. as claimed in claim 5 a kind of be the tobacco barn of thermal source with the air source heat pump, it is characterized in that, described waste-heat recovery device be with heat conductivility preferably material make endothermic tube, be positioned over the moisture exhausting port top, damp-heat air heating inner air tube, an end of endothermic tube connects the air-return duct of fresh wind port or described circulation air path, and the other end is installed ventilating fan, open ventilating fan, heated air in the endothermic tube is sent into air-return duct; In the bottom of described endothermic tube the condensate water guide plate is set.
As claim 1-4 each described a kind of be the tobacco barn of thermal source with the air source heat pump, it is characterized in that, described barn also comprises solar energy heat collector, comprise the solar water heater, hot water heat exchanger, the circulating pump that are connected by water circulating pipe in regular turn, described hot water heat exchanger is installed on heating clamber inner condenser air intake place front end.
8. as claimed in claim 7 a kind of be the tobacco barn of thermal source with the air source heat pump, it is characterized in that the hot water heat exchanger heat exchange area of described solar energy heat collector and the ratio of described air source heat pump compressor power input are not less than 1.3m
2/ kw; The ratio of described solar water heater all-glass vacuum thermal-collecting tube endotherm area and described air source heat pump compressor power input is not less than 1.2m
2/ kw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009200661437U CN201523654U (en) | 2009-09-30 | 2009-09-30 | Tobacco flue-curing room using air source heat pump as heat source |
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|---|---|---|---|
| CN2009200661437U CN201523654U (en) | 2009-09-30 | 2009-09-30 | Tobacco flue-curing room using air source heat pump as heat source |
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Cited By (11)
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| CN101940358A (en) * | 2009-09-30 | 2011-01-12 | 湖南省烟草公司长沙市公司 | Tobacco curing barn taking air source heat pump as heat source |
| CN102499431A (en) * | 2011-09-30 | 2012-06-20 | 四川省烟草公司泸州市公司 | Curing process of flue-curing barn |
| CN102528006A (en) * | 2010-12-29 | 2012-07-04 | 机械科学研究总院先进制造技术研究中心 | Closed type high-temperature metal part afterheat recovery plant |
| CN102669807A (en) * | 2012-04-23 | 2012-09-19 | 云南乾程科技开发有限公司 | Closed internal circulation energy-saving and environment-friendly flue-curing barn for tobacco leaf curing |
| CN102697157A (en) * | 2012-06-19 | 2012-10-03 | 集美大学 | High-efficiency and energy-saving intensive tobacco flue-curing house |
| CN103099302A (en) * | 2013-03-06 | 2013-05-15 | 东莞市正旭新能源设备科技有限公司 | Intelligent energy-saving dehumidification integrated curing barn for curing tobaccos |
| CN103296962A (en) * | 2012-02-29 | 2013-09-11 | 艾默生电气公司 | Speed control of variable-speed and multi-phase motor |
| CN104833198A (en) * | 2015-05-15 | 2015-08-12 | 枣庄市山亭区鑫盛机械厂 | Heat preservation and moisture removal device |
| CN104997150A (en) * | 2015-08-04 | 2015-10-28 | 河南省烟草公司许昌市公司 | Curing barn using concurrent flow baking |
| CN105520165A (en) * | 2015-12-21 | 2016-04-27 | 广州虹能节能技术有限公司 | Solar baking system |
| CN112352991A (en) * | 2020-11-18 | 2021-02-12 | 青岛海信日立空调系统有限公司 | Tobacco dryer and control method for electric heating of tobacco dryer |
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| CN101940358A (en) * | 2009-09-30 | 2011-01-12 | 湖南省烟草公司长沙市公司 | Tobacco curing barn taking air source heat pump as heat source |
| CN102528006A (en) * | 2010-12-29 | 2012-07-04 | 机械科学研究总院先进制造技术研究中心 | Closed type high-temperature metal part afterheat recovery plant |
| CN102528006B (en) * | 2010-12-29 | 2016-08-31 | 机械科学研究总院先进制造技术研究中心 | A kind of closed type high-temperature metal part afterheat recovery plant |
| CN102499431A (en) * | 2011-09-30 | 2012-06-20 | 四川省烟草公司泸州市公司 | Curing process of flue-curing barn |
| US9214890B2 (en) | 2012-02-29 | 2015-12-15 | Emerson Electric Co. | Speed control of variable-speed multiple-phase motors |
| US10084406B2 (en) | 2012-02-29 | 2018-09-25 | Emerson Electric Co. | Speed control of variable-speed multiple-phase motors |
| CN103296962A (en) * | 2012-02-29 | 2013-09-11 | 艾默生电气公司 | Speed control of variable-speed and multi-phase motor |
| CN103296962B (en) * | 2012-02-29 | 2017-08-15 | 艾默生电气公司 | The speed control of speed change multi-phase motor |
| CN102669807A (en) * | 2012-04-23 | 2012-09-19 | 云南乾程科技开发有限公司 | Closed internal circulation energy-saving and environment-friendly flue-curing barn for tobacco leaf curing |
| CN102697157A (en) * | 2012-06-19 | 2012-10-03 | 集美大学 | High-efficiency and energy-saving intensive tobacco flue-curing house |
| CN102697157B (en) * | 2012-06-19 | 2014-07-30 | 集美大学 | High-efficiency and energy-saving intensive tobacco flue-curing house |
| CN103099302A (en) * | 2013-03-06 | 2013-05-15 | 东莞市正旭新能源设备科技有限公司 | Intelligent energy-saving dehumidification integrated curing barn for curing tobaccos |
| CN104833198A (en) * | 2015-05-15 | 2015-08-12 | 枣庄市山亭区鑫盛机械厂 | Heat preservation and moisture removal device |
| CN104997150A (en) * | 2015-08-04 | 2015-10-28 | 河南省烟草公司许昌市公司 | Curing barn using concurrent flow baking |
| CN105520165A (en) * | 2015-12-21 | 2016-04-27 | 广州虹能节能技术有限公司 | Solar baking system |
| CN112352991A (en) * | 2020-11-18 | 2021-02-12 | 青岛海信日立空调系统有限公司 | Tobacco dryer and control method for electric heating of tobacco dryer |
| CN112352991B (en) * | 2020-11-18 | 2022-12-06 | 青岛海信日立空调系统有限公司 | Tobacco dryer and control method for electric heating of tobacco dryer |
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