CN110597332A - Curing barn dry-wet ball temperature control method and curing barn dry-wet ball temperature control system - Google Patents
Curing barn dry-wet ball temperature control method and curing barn dry-wet ball temperature control system Download PDFInfo
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- CN110597332A CN110597332A CN201911007908.4A CN201911007908A CN110597332A CN 110597332 A CN110597332 A CN 110597332A CN 201911007908 A CN201911007908 A CN 201911007908A CN 110597332 A CN110597332 A CN 110597332A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000003507 refrigerant Substances 0.000 claims abstract description 130
- 238000001035 drying Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 97
- 238000001816 cooling Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000009736 wetting Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 241000208125 Nicotiana Species 0.000 abstract description 9
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract description 9
- 238000012545 processing Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000007791 dehumidification Methods 0.000 description 25
- 239000008188 pellet Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A curing barn dry-wet bulb temperature control method and a curing barn dry-wet bulb temperature control system relate to the field of tobacco processing. The curing barn dry-wet ball temperature control system comprises a curing barn, a heat pump unit and a controller; a dry bulb temperature sensor and a wet bulb temperature sensor are arranged in the curing barn to obtain an actually measured dry bulb temperature T and an actually measured wet bulb temperature Ts in real time; the heat pump unit comprises a refrigerant circulating loop and a fan, wherein the refrigerant circulating loop comprises a first refrigerant circulating loop, a second refrigerant circulating loop and a third refrigerant circulating loop; the controller is respectively electrically connected with the dry bulb temperature sensor, the wet bulb temperature sensor, the first refrigerant circulating loop, the second refrigerant circulating loop, the third refrigerant circulating loop and the fan; the control method provided by the application is adopted to implement the process of regulating and controlling the dry-wet bulb temperature of the curing barn. Not only effectively regulate and control roast room wet-dry bulb temperature, guarantee simultaneously that roast room wet-dry bulb temperature's variation range is little, guarantee the stability of drying, can also effectively save energy.
Description
Technical Field
The application relates to the field of tobacco processing, in particular to a drying and wetting ball temperature control method and a drying and wetting ball temperature control system for a curing barn.
Background
The tobacco has different requirements on the dry-wet-bulb temperature in different stages, and the heat pump unit is adopted to independently set a dehumidification mode and a heating mode to respectively control the wet-bulb temperature and the dry-bulb temperature.
The tobacco baking has corresponding requirements on dry bulb temperature and wet bulb temperature, the relationship between the dry bulb temperature and the wet bulb temperature is difficult to balance, heat waste is easy to cause, the fluctuation range of the dry bulb temperature and the wet bulb temperature in the baking room is large, and the baking quality of the tobacco is influenced.
Disclosure of Invention
The application provides a drying and wetting ball temperature control method and a drying and wetting ball temperature control system of a curing barn to improve the problems.
According to the method for controlling the temperature of the dry bulb and the wet bulb of the curing barn, the curing barn adopts a heat pump unit for drying, the heat pump unit comprises a refrigerant circulation loop and a fan arranged at an air outlet of the heat pump unit, the refrigerant circulation loop comprises a first refrigerant circulation loop, a second refrigerant circulation loop and a third refrigerant circulation loop, and the method for controlling the temperature of the dry bulb and the wet bulb of the curing barn comprises the following steps:
and S1, obtaining the actually measured dry bulb temperature T and the actually measured wet bulb temperature Ts in the baking room in real time.
And S2, in the preset monitoring time period, when the deviation exists between the measured dry bulb temperature T and the target dry bulb temperature T1set and the deviation exists between the measured wet bulb temperature Ts and the target wet bulb temperature T2set, executing a step S3.
Step S3 includes step S31, and step S31 includes: when there is no operational obstacle in the refrigerant circulation circuit, a closed circulation mode is performed.
The closed circulation mode includes: in a closed curing barn, according to the numerical relationship between the sum and difference between the target dry bulb temperature T1set and the dry bulb deviation value T1d and the measured dry bulb temperature T, and the numerical relationship between the sum and difference between the target wet bulb temperature T2set and the wet bulb deviation value T2d and the measured wet bulb temperature Ts, the operation of a refrigerant circulation loop of a heat pump unit is controlled so as to adjust the measured dry bulb temperature T and the measured wet bulb temperature Ts.
According to the method for controlling the dry-wet bulb temperature of the curing barn, the operation of the refrigerant circulating circuit is determined according to the relation of setting the dry-bulb deviation value t1d and the wet-bulb deviation value t2d, and the relation of the dry-wet bulb temperature is effectively balanced. The measured dry-wet bulb temperature T, Ts is compared with the target dry-wet bulb temperatures T1set and T2set respectively in the monitoring time period, the dry-wet bulb temperature is guaranteed to be in a reasonable range by setting the dry-wet bulb temperature deviation values T1d and T2d, the condition that the fluctuation range of the dry-wet bulb temperature is large and the baking quality of tobacco is influenced is prevented, and meanwhile, the step S3 is in a closed circulation mode, so that the waste of heat is effectively prevented.
In addition, the method for controlling the temperature of the dry and wet pellets in the curing barn according to the embodiment of the application has the following additional technical characteristics:
with reference to the first aspect, in some embodiments illustrated herein, the step S31 includes a step S311, and the step S311 includes: when T is less than or equal to T1set-T1d and Ts is less than T2set + T2d, executing a closed heating mode and continuing to execute the step 1; wherein the closed heating mode includes operating a first refrigerant circulation loop and a fan for transferring ambient heat to the interior of the curing barn to increase the measured dry bulb temperature.
Optionally, step S31 includes step S312, and step S312 includes: when T is more than T1set-T1d and Ts is less than or equal to T2set-T2d, executing an energy-saving mode and continuing to execute the step 1; wherein the energy-saving mode comprises only operating the fan to make the air in the curing barn perform closed circulation.
Alternatively, step S31 includes step S313, and step S313 includes: when T is less than or equal to T1set-T1d and Ts is more than or equal to T2set + T2d, executing a closed heating and dehumidifying mode and continuing to execute the step 1; the closed heating and dehumidifying mode comprises a second refrigerant circulating loop and a fan, wherein the second refrigerant circulating loop and the fan are used for condensing wet air in the baking room into liquid water and discharging the liquid water to the outside so as to reduce the actual measurement temperature of wet balls, and heat generated by two-phase conversion of the wet air is provided for the baking room so as to improve the actual measurement temperature of dry balls.
Alternatively, step S31 includes step S314, and step S314 includes: when T is more than T1set-T1d and Ts is more than T2set-T2d, or T is more than or equal to T1set + T1d and T2set-T2d is less than Ts and less than T2set + T2d, executing a closed cooling and dehumidifying mode, and continuing to execute the step 1, wherein the closed cooling and dehumidifying mode comprises operating a third refrigerant circulating loop and a fan, and is used for condensing the humid air in the baking room into liquid water to be discharged to the outside so as to reduce the wet bulb temperature of the baking room, and discharging the heat of two-phase conversion of the humid air to the atmosphere so as to reduce the dry bulb temperature.
In summary, when there is no operational failure in the refrigerant circuit, the closed circulation mode is performed in step S31; the energy-saving type dry bulb temperature control system comprises a control system, a control system and a control system, wherein the control system comprises a target dry bulb temperature T1set, a dry bulb deviation value T1d, a target wet bulb temperature T2set, a wet bulb deviation value T2d, a dry bulb temperature T, a wet bulb temperature T2set, a wet bulb deviation value T2d, a wet bulb temperature Ts, a dry bulb temperature T, a wet bulb temperature T, a dry bulb temperature T, a wet bulb temperature T2set, a dry bulb.
In connection with the first aspect, the present application illustrates that in some embodiments, the baking room further employs an auxiliary heating device for drying.
The auxiliary heating device is, for example, an electric heating wire.
Step S3 includes S32, and step S32 includes: when the operation of the refrigerant circulation circuit is obstructed, the refrigerant circulation circuit is closed, and the actually measured dry bulb temperature T and the actually measured wet bulb temperature Ts are adjusted through self circulation of air in the baking room, exchange of air and atmosphere in the baking room or heating of an auxiliary heating mechanism according to the numerical relationship between the sum and difference of the target dry bulb temperature T1set and the dry bulb deviation value T1d and the actually measured dry bulb temperature T and the numerical relationship between the sum and difference of the target wet bulb temperature T2set and the wet bulb deviation value T2d and the actually measured wet bulb temperature Ts.
By the arrangement mode, the temperature of the dry and wet balls in the curing barn can be ensured to be normal when the refrigerant circulation loop breaks down, and the normal operation of the temperature control of the dry and wet balls in the curing barn is ensured.
In combination with the first aspect, in some embodiments shown herein, step S32 includes step S321, and step S321 includes: when T is less than or equal to T1set-T1d and Ts is less than T2set + T2d, executing a forced heating mode and continuing to execute the step 1; the forced heating mode includes operating an auxiliary heating device and a fan for circulating the heated air through the auxiliary heater in the curing barn.
Alternatively, step S32 includes step S322, and step S322 includes: when T is more than T1set-T1d and Ts is less than or equal to T2set-T2d, executing an energy-saving mode and continuing to execute the step 1; the energy-saving mode is that only the fan operates to make the air in the curing barn perform closed circulation.
Alternatively, step S32 includes step S323, and step S323 includes: when T is less than or equal to T1set-T1d and Ts is more than or equal to T2set + T2d, executing an open type heating and dehumidifying mode, and continuing to execute the step 1; the open heating and dehumidifying mode includes operating a fan and an auxiliary heater for inputting heated air through the auxiliary heater into the curing barn and discharging humid air in the curing barn to the outside.
Alternatively, step S32 includes step S324, and step S324 includes: when T is more than T1set-T1d and Ts is more than T2set-T2d, or T is more than or equal to T1set + T1d and T2set-T2d is more than Ts and less than T2set + T2d, executing an open cooling and dehumidifying mode and continuing to execute the step 1; the open cooling and dehumidifying mode comprises an operating fan which is used for inputting outdoor air into the curing barn and discharging humid air in the curing barn outdoors.
In summary, according to the numerical relationship between the sum and difference between the target dry-bulb temperature T1set and the dry-bulb deviation value T1d and the measured dry-bulb temperature T, and the numerical relationship between the sum and difference between the target wet-bulb temperature T2set and the wet-bulb deviation value T2d and the measured wet-bulb temperature Ts, a forced heating mode, an energy saving mode, an open heating and dehumidifying mode, and an open cooling and dehumidifying mode can be adopted to effectively balance the requirements of the measured dry-bulb temperature and the measured wet-bulb temperature, and meanwhile, through the above relationships, the heating heat of the auxiliary heater is judged to be discharged into the baking room or the wet air and heat in the baking room are output to the atmosphere, and the dry-bulb temperature of the baking room can be reduced or increased according to the requirements while the wet-bulb temperature is reduced.
In some embodiments, the method further includes a step S5 performed after the step S1, and the step S5 includes: and when the deviation does not exist between the actually measured dry bulb temperature T and the target dry bulb temperature T1set and the deviation does not exist between the actually measured wet bulb temperature Ts and the target wet bulb temperature T2set, executing an energy-saving mode, and continuously executing the step 1, wherein the energy-saving mode comprises the operation of only a fan so as to enable the air in the curing barn to be in closed circulation. Effectively preventing energy waste and simultaneously ensuring the normal operation of the regulation and control method.
According to the roast room wet-dry bulb temperature control system of this application second aspect embodiment, it includes roast room, is used for drying the heat pump set of roast room, and the controller.
Wherein, be equipped with dry bulb temperature sensor and wet bulb temperature sensor in the roast room to obtain actual measurement dry bulb temperature T and actual measurement wet bulb temperature Ts in real time.
The heat pump unit comprises a refrigerant circulation loop and a fan arranged at an air outlet of the heat pump unit, wherein the refrigerant circulation loop comprises a first refrigerant circulation loop, a second refrigerant circulation loop and a third refrigerant circulation loop.
The controller is respectively electrically connected with the dry bulb temperature sensor, the wet bulb temperature sensor, the first refrigerant circulating loop, the second refrigerant circulating loop, the third refrigerant circulating loop and the fan.
The control method provided by the embodiment of the first aspect of the application is adopted to implement the dry-wet bulb temperature regulation process of the curing barn.
According to roast room wet-dry bulb temperature control system of this application embodiment, utilize control method as above to implement, not only effectively regulate and control roast room wet-dry bulb temperature, guarantee simultaneously that roast room wet-dry bulb temperature's variation range is little, guarantee the stability of drying, can also effectively energy-conservation.
In connection with the second aspect, the present application illustrates some embodiments in which the control system includes a heating chamber separated from the baking chamber by a retaining wall; the retaining wall is provided with a first opening for conveying air from the heating chamber to the baking chamber and a second opening for conveying air from the baking chamber to the heating chamber, so that an air flow channel is formed between the baking chamber and the heating chamber, and the first opening is positioned above the second opening; the heat pump unit is arranged in the heating chamber, and the air outlet of the fan is close to the first opening.
In combination with the second aspect, in some embodiments illustrated herein, a heat pump unit includes a compressor, a four-way valve, a first heat exchanger, a third heat exchanger, an expansion valve, and a third heat exchanger.
The outlet of the compressor, the four-way valve, the first heat exchanger, the expansion valve, the second heat exchanger and the inlet of the compressor are sequentially connected through a refrigerant pipeline to form a closed first refrigerant circulating loop, the first heat exchanger is located on one side, close to the first opening, of the fan, and the second heat exchanger is located outside the heating chamber.
The outlet of the compressor, the four-way valve, the first heat exchanger, the expansion valve, the third heat exchanger and the inlet of the compressor are sequentially connected through a refrigerant pipeline to form a closed second refrigerant circulation loop, and the third heat exchanger is positioned on one side, close to the second opening, of the heat pump unit.
The outlet of the compressor, the second heat exchanger, the expansion valve, the third heat exchanger, the four-way valve and the inlet of the compressor are sequentially connected through a refrigerant pipeline to form a closed third refrigerant circulating loop.
In other words, the heat pump unit provided by the application is integrated with three refrigerant circulation loops, the first refrigerant circulation loop, the second refrigerant circulation loop and the third refrigerant circulation loop can realize different modes through the arrangement positions of the first heat exchanger, the second heat exchanger and the third heat exchanger so as to regulate and control the temperature, and compared with three independent refrigerant circulation loops, the heat pump unit effectively reduces the cost and energy consumption.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a system for controlling the wet and dry bulb temperature of a curing barn according to the present invention;
FIG. 2 is a schematic flow chart of the method for controlling the wet and dry bulb temperature of the curing barn.
Icon: 10-a drying and wetting ball temperature control system of the curing barn; 100-baking room; 110-retaining wall; 111-a first opening; 113-a second opening; 120-heating chamber; 130-heat pump set; 131-a fan; 132-a compressor; 133-a four-way valve; 134-a first heat exchanger; 135-a second heat exchanger; 136-an expansion valve; 137-a third heat exchanger; 140-auxiliary heating means; 150-fresh air valve; 160-dehumidification valve.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It should be noted that the terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not intended to indicate or imply relative importance.
It should be noted that the dry-wet-bulb temperature in the present application generally refers to the measured dry-wet-bulb temperature T and the measured wet-bulb temperature Ts, unless otherwise specified.
Examples
Referring to fig. 1, the present application provides a system 10 for controlling the dry and wet bulb temperature of a curing barn 100, wherein the curing barn 100 is dried by a heat pump unit 130, and the system 10 and the corresponding method are particularly suitable for drying tobacco leaves, and besides, can also be used for drying other plants, such as dehydrated vegetables.
The system 10 for controlling the temperature of the dry and wet pellets in the curing barn comprises the curing barn 100, a heat pump unit 130 for drying the curing barn 100, and a controller (not shown).
A dry bulb temperature sensor (not shown) and a wet bulb temperature sensor (not shown) are arranged in the curing barn 100 to obtain an actually measured dry bulb temperature T and an actually measured wet bulb temperature Ts in real time, and instantaneous measurement errors of the dry bulb temperature sensor and the wet bulb temperature sensor are prevented through real-time monitoring, so that false operation of the curing barn dry-wet bulb temperature control system 10 is prevented. The heat pump unit 130 includes a refrigerant circulation loop and a fan 131 disposed at an air outlet of the heat pump unit 130, and the refrigerant circulation loop includes a first refrigerant circulation loop, a second refrigerant circulation loop and a third refrigerant circulation loop. The controller is electrically connected to the dry bulb temperature sensor, the wet bulb temperature sensor, the first refrigerant circulation circuit, the second refrigerant circulation circuit, the third refrigerant circulation circuit, and the blower fan 131, respectively.
The system 10 for controlling the temperature of the dry and wet pellets in the curing barn has a simple structure, and can effectively adjust the temperature of the dry and wet pellets in the curing barn 100.
Specifically, the control system includes a heating chamber 120 separated from the curing barn 100 by a retaining wall 110; the retaining wall 110 is provided with a first opening 111 for the heating chamber 120 to supply air to the curing barn 100 and a second opening 113 for supplying air from the curing barn 100 to the heating chamber 120, so that an air flow path is formed between the curing barn 100 and the heating chamber 120, and the first opening 111 is located above the second opening 113; the heat pump unit 130 is disposed in the heating chamber 120, and an air outlet of the fan 131 is close to the first opening 111. The setting conditions can enable the energy heated by the heat pump unit 130 to circulate through the air outlet, the first opening 111, the curing barn 100, the second opening 113 and the heating chamber 120, and ensure the uniform distribution of the temperature of the curing barn 100.
The fan 131 may be a centrifugal fan 131 or an axial fan 131, and those skilled in the art can select the fan according to actual requirements. When only the fan 131 is operated, the air in the curing barn 100 can be circulated in a closed manner, that is, an energy-saving mode is realized.
It should be noted that the first refrigerant circulation circuit, the second refrigerant circulation circuit, and the third refrigerant circulation circuit may be three independent circuits, or may be integrated in the same heat pump unit 130, where integration means that some parts of the first refrigerant circulation circuit, the second refrigerant circulation circuit, and the third refrigerant circulation circuit are shared, so as to reduce the manufacturing cost, and meanwhile, the temperature control of the dry-wet bulb of the curing barn 100 is more convenient, and the energy consumption is reduced.
In this embodiment, the heat pump unit 130 includes a compressor 132, a four-way valve 133, a first heat exchanger 134, a second heat exchanger 135, an expansion valve 136, and a third heat exchanger 137.
The first heat exchanger 134, the second heat exchanger 135 and the third heat exchanger 137 may be a dividing wall type heat exchanger, a hybrid type heat exchanger, a regenerative type heat exchanger, a ceramic type heat exchanger, etc., respectively, and the expansion valve 136 may be a thermal expansion valve 136 or an electronic expansion valve 136, etc., which may be set by those skilled in the art according to actual requirements.
Specifically, the outlet of the compressor 132, the four-way valve 133, the first heat exchanger 134, the expansion valve 136, the second heat exchanger 135, and the inlet of the compressor 132 are sequentially connected through refrigerant pipes to form a closed first refrigerant circulation loop, the first heat exchanger 134 is located at one side of the fan 131 near the first opening 111 for sending heated hot air into the baking room 100 through the first opening 111, and the second heat exchanger 135 is located outside the heating chamber 120.
That is, the closed heating mode can be achieved by the first refrigerant circulation circuit. In the closed heating mode, heat in the environment is blown by the fan 131 to be transported into the baking room 100 mainly through the first opening 111 through the circulation of the refrigerant, so that the temperature of the dry pellets is increased; specifically, the compressor 132 transmits the high-temperature and high-pressure gaseous refrigerant in the first refrigerant circulation circuit to the first heat exchanger 134 through the four-way valve 133, the high-temperature and high-pressure gaseous refrigerant is condensed to a high-temperature and high-pressure liquid refrigerant at the first heat exchanger 134, heat is released during the condensation process, the heat is blown by the fan 131 and conveyed to the interior of the baking room 100 to heat the air in the baking room 100, and the high-temperature and high-pressure liquid refrigerant is throttled by the expansion valve 136 and then passes through the second heat exchanger 135 to absorb atmospheric heat to be evaporated to a low-temperature and low-pressure gaseous refrigerant to return to the compressor 132.
The outlet of the compressor 132, the four-way valve 133, the first heat exchanger 134, the expansion valve 136, the third heat exchanger 137 and the inlet of the compressor 132 are sequentially connected through refrigerant pipelines to form a closed second refrigerant circulation loop, and the third heat exchanger 137 is located on one side of the heat pump unit 130 close to the second opening 113 and is used for absorbing heat of the curing barn 100. The closed heating dehumidification mode can be achieved by the second refrigerant circulation circuit.
In the closed heating and dehumidifying mode, the wet air in the curing barn 100 is condensed into liquid water through the circulation of the refrigerant and discharged to the outside, so that the wet bulb temperature of the curing barn 100 is reduced, the heat generated by the two-phase conversion of the wet air is provided to the curing barn 100, and the dry bulb temperature is increased. Specifically, the compressor 132 transmits the high-temperature and high-pressure gaseous refrigerant to the first heat exchanger 134 after passing through the four-way valve 133, the high-temperature and high-pressure gaseous refrigerant is condensed into a high-temperature and high-pressure liquid refrigerant at the first heat exchanger 134 to heat the whole circulating air in the baking room 100, then the high-temperature and high-pressure liquid refrigerant passes through the throttling of the expansion valve 136, the heat of the baking room 100 output through the second opening 113 is absorbed by the third heat exchanger 137 to be evaporated into a low-temperature and low-pressure gaseous refrigerant, part or all of the circulating humid air in the baking room 100 is condensed into liquid water, the liquid water is discharged out of the baking room 100, and the refrigerant finally returns to the compressor 132.
An outlet of the compressor 132, the second heat exchanger 135, the expansion valve 136, the third heat exchanger 137, the four-way valve 133, and an inlet of the compressor 132 are sequentially connected through refrigerant lines to form a closed third refrigerant circulation circuit. And a closed cooling and dehumidifying mode is realized through the third refrigerant circulating loop.
In the closed cooling and dehumidifying mode, the wet air in the curing barn 100 is condensed into liquid water through the circulation of the refrigerant and discharged to the outside, so that the wet bulb temperature of the curing barn 100 is reduced, the heat generated by the two-phase conversion of the wet air is discharged to the atmosphere, and the dry bulb temperature is reduced. Specifically, the compressor 132 communicates the high-temperature high-pressure gaseous refrigerant with the third heat exchanger 137, the high-temperature high-pressure gaseous refrigerant is condensed into a high-temperature high-pressure liquid to heat the atmosphere, the high-temperature high-pressure liquid refrigerant is throttled by the expansion valve 136, the heat of the baking room 100 is absorbed by the second heat exchanger 135 to be evaporated into a low-temperature low-pressure gaseous refrigerant, part or all of the circulating humid air in the baking room 100 is condensed into liquid water, the baking room 100 is cooled and dehumidified, and finally the low-temperature low-pressure gaseous refrigerant returns to the compressor 132.
The execution of the closed heating mode, the closed heating dehumidification mode and the closed cooling dehumidification mode is realized through the arrangement of the first refrigerant circulation loop, the second refrigerant circulation loop and the third refrigerant circulation loop.
It should be noted that, the present components can be directly purchased from the components adopted in the present application, and the heat pump unit 130 can refer to the related art, that is, the heat pump unit 130 provided in the present application can also overload the compressor 132, and alarm the system high pressure/system low pressure and other faults that affect the normal operation of the system, which is not described herein again.
Further, in order to prevent the operation failure of the refrigerant circulation circuit, which results in that the curing barn 100 cannot perform closed heating, optionally, the curing barn wet-dry bulb temperature control system 10 further includes an auxiliary heating device 140 disposed in the heating chamber 120, wherein the auxiliary heating device 140 is close to the fan 131; so that the heated air is blown into the curing barn 100 by the blower fan 131, and the forced heating mode is realized by the auxiliary heating means 140 when the operation failure of the refrigerant circulation circuit occurs.
The auxiliary heating device 140 includes at least one of an infrared heater, an electric heater, and a solar heater. The auxiliary heating device 140 is electrically connected to a controller, and the controller controls whether the auxiliary heating device 140 operates.
Further, in order to prevent the operation failure of the refrigerant circulation circuit, which results in that the curing barn 100 cannot perform the closed heating dehumidification mode and the closed cooling dehumidification mode, optionally, the heating chamber 120 is provided with a fresh air valve 150 for delivering air into the heating chamber 120, and an inlet of the fresh air valve 150 is communicated with the atmosphere. The curing barn 100 is provided with a dehumidifying valve 160, and an outlet of the dehumidifying valve 160 is communicated with the atmosphere for discharging the humid air in the curing barn 100 to the atmosphere. And further realize open heating dehumidification mode and open cooling dehumidification module.
In the open heating and dehumidifying mode, the fan 131, the auxiliary heating device 140, the fresh air valve 150 and the dehumidifying valve 160 are in working states, and the refrigerant circulation loop is in a closed state. Under the action of the fan 131, the air in the heating chamber 120 is heated by the auxiliary heating device 140 and enters the baking chamber 100 for circulation, meanwhile, the fresh air valve 150 is opened to introduce the outdoor air into the baking chamber 100, and the dehumidification valve 160 in the baking chamber 100 is opened to discharge the humid air to the outside.
In the open cooling and dehumidifying mode, the fan 131, the fresh air valve 150 and the dehumidifying valve 160 are all in working states, and the auxiliary heating device 140 and the refrigerant circulation loop are in closed states. Under the action of the fan 131, the fresh air valve 150 is opened to introduce outdoor air into the curing barn 100, and the dehumidification valve 160 in the curing barn 100 is opened to discharge wet air to the outside.
It should be noted that, when the auxiliary heating device 140, the fresh air valve 150 and the dehumidification valve 160 exist in the drying and wet bulb temperature control system 10 of the curing barn, in the energy saving mode, the closed heating mode, the closed cooling dehumidification mode, the closed heating dehumidification mode and the energy saving mode, the auxiliary heating device 140, the fresh air valve 150 and the dehumidification valve 160 are all closed, and do not work.
Wherein, for better cooling and dehumidifying effects, the fresh air valve 150 is disposed on the bottom wall of the heating chamber 120 and near one side of the second opening 113. The dehumidifying valve 160 is disposed at a side of the bottom wall of the curing barn 100 adjacent to the second opening 113.
The fresh air valve 150 and the dehumidification valve 160 are electrically connected to the controller, that is, the controller is used to remotely control the fresh air valve 150 and the dehumidification valve 160, that is, the fresh air valve 150 and the dehumidification valve are both solenoid valves.
Referring to fig. 1 and 2, the present application further provides a dry-wet-bulb temperature control method for a curing barn 100, which is implemented by using the dry-wet-bulb temperature control method for the curing barn 100 in the dry-wet-bulb temperature control process of the curing barn dry-wet-bulb temperature control system 10.
Specifically, with continued reference to fig. 1 and 2, the method for controlling the wet and dry bulb temperature of the flue-curing barn 100 comprises:
s1, obtaining an actually measured dry bulb temperature T and an actually measured wet bulb temperature Ts in the baking room 100 in real time.
Wherein, the actually measured dry bulb temperature T and the actually measured wet bulb temperature Ts are respectively measured by a dry bulb temperature sensor and a wet bulb temperature sensor arranged in the baking room 100.
Optionally, step S1.1 is further included between step S1 and step S2, and step S1.1 includes: and comparing the measured dry bulb temperature T with the target dry bulb temperature T1set, and comparing the measured wet bulb temperature Ts with the target wet bulb temperature T2set, so as to obtain whether a deviation exists. When there is a deviation, step S2 is performed, and when there is no deviation, step S5 is performed.
It should be noted that, step S1.1 may be directly determined by a human, or may be determined by comparison using a controller, or the latter may be used for more intellectualization.
S2, in a preset monitoring time period, when the actually measured dry bulb temperature T is deviated from the target dry bulb temperature T1set, and the actually measured wet bulb temperature Ts is deviated from the target wet bulb temperature T2set, executing the step S3.
In step S2, where the predetermined monitoring time period is represented by t1, one skilled in the art can set the time value of the predetermined monitoring time period t1 according to the actual requirement.
The step S3 includes steps S31 and S32. Therefore, step S3 needs to determine whether there is an operation failure in the refrigerant circulation circuit within a preset monitoring time period (which may be indicated by t2 in this step) before selectively performing step S31 and step S32, and selectively performs step S31 or step S32 according to whether there is an operation failure. This step can be either a manual decision or a controller decision.
Step S31 includes: when there is no operational obstacle in the refrigerant circulation circuit, a closed circulation mode is performed.
The closed circulation mode includes: in the closed curing barn 100, the operation of the refrigerant circulation loop of the heat pump unit 130 is controlled according to the numerical relationship between the sum and difference between the target dry bulb temperature T1set and the dry bulb deviation value T1d and the measured dry bulb temperature T, and the numerical relationship between the sum and difference between the target wet bulb temperature T2set and the wet bulb deviation value T2d and the measured wet bulb temperature Ts, so as to adjust the measured dry bulb temperature T and the measured wet bulb temperature Ts.
The judgment of the numerical relationship between the sum and difference between the target dry-bulb temperature T1set and the dry-bulb deviation value T1d and the actual measured dry-bulb temperature T, and the numerical relationship between the sum and difference between the target wet-bulb temperature T2set and the wet-bulb deviation value T2d and the actual measured wet-bulb temperature Ts can be manually judged or judged by a controller. The dry bulb deviation value T1d is a deviation value between the target dry bulb temperature T1set and the measured dry bulb temperature T, and the wet bulb deviation value T2d is a deviation value between the target wet bulb temperature T2set and the measured wet bulb temperature Ts.
Specifically, step S31 includes step S311, and step S311 includes: when T is less than or equal to T1set-T1d and Ts is less than T2set + T2d, executing a closed heating mode and continuing to execute the step 1; wherein the closed heating mode includes operating the first refrigerant circulation loop and fan 131 for transporting ambient heat to the interior of the baking chamber 100 to increase the measured dry bulb temperature. At this time, both the fresh air valve 150 and the dehumidification valve 160 are closed.
Step S31 includes step S312, and step S312 includes: when T is more than T1set-T1d and Ts is less than or equal to T2set-T2d, executing an energy-saving mode and continuing to execute the step 1; wherein, the energy-saving mode includes that only the fan 131 is operated, the fresh air valve 150 and the dehumidification valve 160 are both closed, so that the air in the curing barn 100 is circulated in a closed manner.
Step S31 includes step S313, and step S313 includes: when T is less than or equal to T1set-T1d and Ts is more than or equal to T2set + T2d, executing a closed heating and dehumidifying mode and continuing to execute the step 1; the closed heating and dehumidifying mode includes that the fresh air valve 150 and the dehumidifying valve 160 are both closed, and the second refrigerant circulation loop and the fan 131 are operated to condense the wet air in the curing barn 100 into liquid water and discharge the liquid water to the outside to reduce the actual measurement temperature of the wet bulb, and provide the heat of the wet air two-phase conversion to the curing barn 100 to increase the actual measurement temperature of the dry bulb.
Step S31 includes step S314, and step S314 includes: when T is more than T1set-T1d and Ts is more than T2set-T2d, or T is more than or equal to T1set + T1d and T2set-T2d < Ts < T2set + T2d, executing a closed cooling and dehumidifying mode, and continuing to execute the step 1, wherein the closed cooling and dehumidifying mode comprises operating a third refrigerant circulation loop and a fan 131, closing a fresh air valve 150 and a dehumidifying valve 160, and is used for condensing the humid air in the baking room 100 into liquid water to be discharged to the outside so as to reduce the wet bulb temperature of the baking room 100, and discharging the heat of the two-phase conversion of the humid air into the atmospheric environment so as to reduce the dry bulb temperature.
That is, by judging the numerical relationship between the sum and difference between the target dry-bulb temperature T1set and the dry-bulb deviation value T1d and the actually measured dry-bulb temperature T, the closed heating mode, the closed heating dehumidification mode, the closed cooling dehumidification mode and the energy-saving mode of the heat pump unit 130 are controlled, and meanwhile, the refrigerant circulation system is selected and the air closed circulation mode is adopted, so that the heat loss of the baking room 100 can be effectively prevented, and the energy-saving effect is remarkable.
Step S32 includes: when the operation of the refrigerant circulation circuit is obstructed, the refrigerant circulation circuit is closed, and the actually measured dry bulb temperature T and the actually measured wet bulb temperature Ts are adjusted through self circulation of air in the baking room 100, exchange of air and atmosphere in the baking room 100 or heating of an auxiliary heating mechanism according to the numerical relationship between the sum and difference of the target dry bulb temperature T1set and the dry bulb deviation value T1d and the actually measured dry bulb temperature T and the numerical relationship between the sum and difference of the target wet bulb temperature T2set and the wet bulb deviation value T2d and the actually measured wet bulb temperature Ts.
Specifically, step S32 includes step S321, and step S321 includes: when T is less than or equal to T1set-T1d and Ts is less than T2set + T2d, executing a forced heating mode and continuing to execute the step 1; the forced heating mode includes operating the auxiliary heating means 140 and the fan 131, closing the fresh air valve 150 and the dehumidifying valve 160, and circulating the heated air passing through the auxiliary heating means 140 in the curing barn 100.
Step S32 includes step S322, and step S322 includes: when T is more than T1set-T1d and Ts is less than or equal to T2set-T2d, executing an energy-saving mode and continuing to execute the step 1; the energy saving mode includes the operation of only the blower 131, and the closing of the fresh air valve 150 and the dehumidification valve 160 to perform a closed circulation of the air in the curing barn 100.
Step S32 includes step S323, and step S323 includes: when T is less than or equal to T1set-T1d and Ts is more than or equal to T2set + T2d, executing an open type heating and dehumidifying mode, and continuing to execute the step 1; the open heating and dehumidifying mode includes operating the fan 131 and the auxiliary heating device 140, opening the fresh air valve 150, and opening the dehumidifying valve 160 for inputting the heated air through the auxiliary heating device 140 to the curing barn 100 and discharging the humid air in the curing barn 100 to the outside.
Step S32 includes step S324, and step S324 includes: when T is more than T1set-T1d and Ts is more than T2set-T2d, or T is more than or equal to T1set + T1d and T2set-T2d is more than Ts and less than T2set + T2d, executing an open cooling and dehumidifying mode and continuing to execute the step 1; the open cooling and dehumidifying mode includes operating the fan 131, opening the fresh air valve 150, and the dehumidifying valve 160 for inputting outdoor air into the curing barn 100 and discharging the humid air in the curing barn 100 to the outside.
That is, the open heating mode, the open heating dehumidification mode, the open cooling dehumidification mode and the energy saving mode of the heat pump unit 130 are controlled by determining the numerical relationship between the sum and difference between the target dry-bulb temperature T1set and the dry-bulb deviation value T1d and the measured dry-bulb temperature T, and the numerical relationship between the sum and difference between the target wet-bulb temperature T2set and the wet-bulb deviation value T2d and the measured wet-bulb temperature Ts.
Optionally, the dry-wet bulb temperature control method of the curing barn 100 further comprises a step S5 performed after the step S1, wherein the step S5 comprises: and when the actually measured dry bulb temperature T does not have deviation from the target dry bulb temperature T1set and the actually measured wet bulb temperature Ts does not have deviation from the target wet bulb temperature T2set, executing an energy-saving mode, and continuing to execute the step 1, wherein the energy-saving mode comprises the operation of only the fan 131 so as to enable the air in the curing barn 100 to be in closed circulation.
By the method for controlling the dry-wet bulb temperature of the curing barn 100, the dry-wet bulb temperature in the dry-wet bulb temperature control system 10 of the curing barn can be ensured to be within a reasonable range, the fluctuation range of the dry-wet bulb temperature is small, and the curing quality of tobacco is prevented from being influenced. Meanwhile, the heat of the wet air condensed into liquid water is discharged out of the atmosphere or the baking room 100 by judging the numerical relationship between the sum and difference of the target dry bulb temperature T1set and the dry bulb deviation T1d and the actual measured dry bulb temperature T, and the numerical relationship between the sum and difference of the target wet bulb temperature T2set and the wet bulb deviation T2d and the actual measured wet bulb temperature Ts, so that the dry bulb temperature of the baking room 100 can be reduced or increased according to the requirement while the wet bulb temperature is reduced, and the energy-saving effect is remarkable.
In conclusion, the method for controlling the temperature of the dry-wet balls in the curing barn and the system for controlling the temperature of the dry-wet balls in the curing barn can ensure that the temperature of the dry-wet balls is in a reasonable range, prevent the fluctuation range of the temperature of the dry-wet balls from being large, influence the curing quality of tobacco and effectively prevent heat waste.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a roast room wet-and-dry bulb temperature control method, roast room adopts heat pump set to dry, heat pump set includes refrigerant circulation circuit, and set up in the fan of heat pump set's air outlet, refrigerant circulation circuit includes first refrigerant circulation circuit, second refrigerant circulation circuit and third refrigerant circulation circuit, its characterized in that, roast room wet-and-dry bulb temperature control method includes:
s1, obtaining the actually measured dry bulb temperature T and the actually measured wet bulb temperature Ts in the curing barn in real time;
s2, in a preset monitoring time period, when the actually measured dry bulb temperature T is deviated from the target dry bulb temperature T1set and the actually measured wet bulb temperature Ts is deviated from the target wet bulb temperature T2set, executing a step S3;
step S3 includes step S31, which step S31 includes: performing a closed circulation mode when there is no operational obstacle in the refrigerant circulation circuit;
the closed circulation mode includes: and in the closed baking room, controlling a refrigerant circulation loop of the heat pump unit to operate according to the numerical relationship between the sum and difference of the target dry bulb temperature T1set and the dry bulb deviation value T1d and the actually measured dry bulb temperature T, and the numerical relationship between the sum and difference of the target wet bulb temperature T2set and the wet bulb deviation value T2d and the actually measured wet bulb temperature Ts, so as to adjust the actually measured dry bulb temperature T and the actually measured wet bulb temperature Ts.
2. The method as claimed in claim 1, wherein the step S31 includes a step S311, and the step S311 includes: when T is less than or equal to T1set-T1d and Ts is less than T2set + T2d, executing a closed heating mode and continuing to execute the step 1; wherein the closed heating mode includes operating a first refrigerant circulation loop and the fan to transfer ambient heat to the interior of the curing barn to increase the measured dry bulb temperature;
optionally, step S31 includes step S312, and step S312 includes: when T is more than T1set-T1d and Ts is less than or equal to T2set-T2d, executing an energy-saving mode and continuing to execute the step 1; wherein the energy-saving mode comprises only operating the fan to make the air in the curing barn perform closed circulation.
3. The method as claimed in claim 1, wherein the step S31 includes a step S313, and the step S313 includes: when T is less than or equal to T1set-T1d and Ts is more than or equal to T2set + T2d, executing a closed heating and dehumidifying mode and continuing to execute the step 1; the closed heating and dehumidifying mode comprises a second refrigerant circulation loop and the fan, wherein the second refrigerant circulation loop and the fan are operated and used for condensing wet air in the baking room into liquid water and discharging the liquid water to the outside so as to reduce the actual measurement temperature of wet balls, and heat converted from two phases of the wet air is provided for the baking room so as to improve the actual measurement temperature of the dry balls;
alternatively, step S31 includes step S314, and step S314 includes: when T is more than T1set-T1d and Ts is more than T2set-T2d, or T is more than or equal to T1set + T1d and T2set-T2d < Ts < T2set + T2d, executing a closed cooling and dehumidifying mode, and continuing to execute the step 1, wherein the closed cooling and dehumidifying mode comprises operating a third refrigerant circulating loop and the fan, and is used for condensing the humid air in the baking room into liquid water to be discharged to the outside so as to reduce the wet bulb temperature of the baking room, and discharging the heat of two-phase conversion of the humid air to the atmosphere so as to reduce the dry bulb temperature.
4. The method for controlling the wet and dry bulb temperature of the curing barn according to any one of claims 1-3, wherein the curing barn is further dried by an auxiliary heating device;
the step S3 includes S32, and the step S32 includes: when the operation of the refrigerant circulation circuit is obstructed, the refrigerant circulation circuit is closed, and the actually measured dry bulb temperature T and the actually measured wet bulb temperature Ts are adjusted through self circulation of air in the baking room, exchange of air and atmosphere in the baking room or heating of an auxiliary heating mechanism according to the numerical relationship between the sum and difference of the target dry bulb temperature T1set and the dry bulb deviation value T1d and the actually measured dry bulb temperature T and the numerical relationship between the sum and difference of the target wet bulb temperature T2set and the wet bulb deviation value T2d and the actually measured wet bulb temperature Ts.
5. The method as claimed in claim 4, wherein the step S32 includes a step S321, and the step S321 includes: when T is less than or equal to T1set-T1d and Ts is less than T2set + T2d, executing a forced heating mode and continuing to execute the step 1; the forced heating mode comprises an auxiliary heating device and the fan, and is used for circulating the air heated by the auxiliary heater in the curing barn;
alternatively, step S32 includes step S322, and step S322 includes: when T is more than T1set-T1d and Ts is less than or equal to T2set-T2d, executing an energy-saving mode and continuing to execute the step 1; the energy-saving mode is that only the fan operates to enable the air in the curing barn to carry out closed circulation.
6. The method for controlling wet and dry bulb temperature of flue-curing barn according to claim 4, wherein the step S32 comprises a step S323, and the step S323 comprises: when T is less than or equal to T1set-T1d and Ts is more than or equal to T2set + T2d, executing an open type heating and dehumidifying mode, and continuing to execute the step 1; the open heating and dehumidifying mode comprises a fan and an auxiliary heater, and is used for inputting the air heated by the auxiliary heater into the baking room and discharging the humid air in the baking room out of the room;
alternatively, step S32 includes step S324, and step S324 includes: when T is more than T1set-T1d and Ts is more than T2set-T2d, or T is more than or equal to T1set + T1d and T2set-T2d is more than Ts and less than T2set + T2d, executing an open cooling and dehumidifying mode and continuing to execute the step 1; the open cooling and dehumidifying mode comprises an operating fan, and is used for inputting outdoor air into the baking room and discharging the humid air in the baking room outdoors.
7. The method for controlling dry and wet bulb temperature in flue-curing barn according to any one of claims 1-3, further comprising step S5 performed after step S1, wherein step S5 comprises: and when the deviation does not exist between the actually measured dry bulb temperature T and the target dry bulb temperature T1set and the deviation does not exist between the actually measured wet bulb temperature Ts and the target wet bulb temperature T2set, executing an energy-saving mode, and continuing to execute the step 1, wherein the energy-saving mode comprises the operation of only the fan so as to enable the air in the curing barn to carry out closed circulation.
8. A drying and wetting ball temperature control system of a curing barn is characterized by comprising the curing barn, a heat pump unit for drying the curing barn and a controller;
a dry bulb temperature sensor and a wet bulb temperature sensor are arranged in the curing barn to respectively obtain an actually measured dry bulb temperature T and an actually measured wet bulb temperature Ts in real time;
the heat pump unit comprises a refrigerant circulation loop and a fan arranged at an air outlet of the heat pump unit, wherein the refrigerant circulation loop comprises a first refrigerant circulation loop, a second refrigerant circulation loop and a third refrigerant circulation loop;
the controller is respectively electrically connected with the dry bulb temperature sensor, the wet bulb temperature sensor, the first refrigerant circulating loop, the second refrigerant circulating loop, the third refrigerant circulating loop and the fan;
the process of adjusting and controlling the dry-wet bulb temperature of the curing barn is implemented by using the control method as claimed in any one of claims 1 to 7.
9. The system of claim 8, wherein said control system comprises a heating chamber separated from said baking chamber by a retaining wall;
the retaining wall is provided with a first opening for conveying air from the heating chamber to the baking room and a second opening for conveying air from the baking room to the heating chamber, so that an air flow channel is formed between the baking room and the heating chamber, and the first opening is positioned above the second opening;
the heat pump unit is arranged in the heating chamber, and the air outlet of the fan is close to the first opening.
10. The curing barn dry-wet bulb temperature control system according to claim 9, wherein the heat pump unit comprises a compressor, a four-way valve, a first heat exchanger, a second heat exchanger, an expansion valve and a third heat exchanger;
the outlet of the compressor, the four-way valve, the first heat exchanger, the expansion valve, the second heat exchanger and the inlet of the compressor are sequentially connected through a refrigerant pipeline to form a closed first refrigerant circulating loop, the first heat exchanger is positioned on one side, close to the first opening, of the fan, and the second heat exchanger is positioned outside the heating chamber;
the outlet of the compressor, the four-way valve, the first heat exchanger, the expansion valve, the third heat exchanger and the inlet of the compressor are sequentially connected through a refrigerant pipeline to form a closed second refrigerant circulation loop, and the third heat exchanger is positioned on one side of the heat pump unit, which is close to the second opening;
the outlet of the compressor, the second heat exchanger, the expansion valve, the third heat exchanger, the four-way valve and the inlet of the compressor are sequentially connected through refrigerant pipelines to form a closed third refrigerant circulating loop.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112075656A (en) * | 2020-10-22 | 2020-12-15 | 中国农业科学院烟草研究所 | Intelligent control method for auxiliary dehumidification of closed circulation heat pump tobacco curing barn |
| CN112304040A (en) * | 2020-10-29 | 2021-02-02 | 广东海悟科技有限公司 | Method for controlling dry-wet bulb temperature of dryer, computer storage medium and dryer |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762137A (en) * | 1984-12-20 | 1988-08-09 | Rodriguez Manuel V | Heat transfer system for tobacco curing |
| JP2000253863A (en) * | 1999-03-08 | 2000-09-19 | Sansyu Sangyo Co Ltd | Heat recovery unit for barley kind tobacco drying chamber |
| CN203940723U (en) * | 2014-06-24 | 2014-11-12 | 高元能 | Dual system agricultural product drying dehumidifying two effect devices |
| CN104720089A (en) * | 2014-12-30 | 2015-06-24 | 云南中海路德科技有限公司 | Sealed curing barn for tobacco leaf curing |
| EP2910882A1 (en) * | 2014-02-03 | 2015-08-26 | Kordecka, Wieslawa | Drying machine for drying of wet objects with circulation of drying medium and method for protecting heat pump of drying machine for drying of wet objects against overheating |
| CN105146705A (en) * | 2015-09-18 | 2015-12-16 | 云南省烟草公司大理州公司 | Method for baking tobacco leaves of honghua dajinyuan (Chinese character) variety by use of closed tobacco curing barn |
| CN105823324A (en) * | 2016-05-18 | 2016-08-03 | 广州能之原科技股份有限公司 | Closed inner circulation type tobacco drying device |
| CN205747879U (en) * | 2016-05-18 | 2016-11-30 | 广州能之原科技股份有限公司 | A kind of airtight internal-circulation type Nicotiana tabacum L. drying unit |
| CN108477660A (en) * | 2018-05-18 | 2018-09-04 | 云南省烟草农业科学研究院 | A kind of double dynamical tobacco baking room of intelligence |
| CN108955225A (en) * | 2018-08-21 | 2018-12-07 | 广州晟启能源设备有限公司 | A kind of air-cooled dehumidifying heat pump that can be realized temperature and adjust in due course |
| CN109588755A (en) * | 2018-11-28 | 2019-04-09 | 湖南科技大学 | Interior circulating dehumidification bulk curing barn baking system |
| CN210515067U (en) * | 2019-10-22 | 2020-05-12 | 广州市华德工业有限公司 | Roast room dry wet bulb temperature control system |
-
2019
- 2019-10-22 CN CN201911007908.4A patent/CN110597332B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762137A (en) * | 1984-12-20 | 1988-08-09 | Rodriguez Manuel V | Heat transfer system for tobacco curing |
| JP2000253863A (en) * | 1999-03-08 | 2000-09-19 | Sansyu Sangyo Co Ltd | Heat recovery unit for barley kind tobacco drying chamber |
| EP2910882A1 (en) * | 2014-02-03 | 2015-08-26 | Kordecka, Wieslawa | Drying machine for drying of wet objects with circulation of drying medium and method for protecting heat pump of drying machine for drying of wet objects against overheating |
| CN203940723U (en) * | 2014-06-24 | 2014-11-12 | 高元能 | Dual system agricultural product drying dehumidifying two effect devices |
| CN104720089A (en) * | 2014-12-30 | 2015-06-24 | 云南中海路德科技有限公司 | Sealed curing barn for tobacco leaf curing |
| CN105146705A (en) * | 2015-09-18 | 2015-12-16 | 云南省烟草公司大理州公司 | Method for baking tobacco leaves of honghua dajinyuan (Chinese character) variety by use of closed tobacco curing barn |
| CN105823324A (en) * | 2016-05-18 | 2016-08-03 | 广州能之原科技股份有限公司 | Closed inner circulation type tobacco drying device |
| CN205747879U (en) * | 2016-05-18 | 2016-11-30 | 广州能之原科技股份有限公司 | A kind of airtight internal-circulation type Nicotiana tabacum L. drying unit |
| CN108477660A (en) * | 2018-05-18 | 2018-09-04 | 云南省烟草农业科学研究院 | A kind of double dynamical tobacco baking room of intelligence |
| CN108955225A (en) * | 2018-08-21 | 2018-12-07 | 广州晟启能源设备有限公司 | A kind of air-cooled dehumidifying heat pump that can be realized temperature and adjust in due course |
| CN109588755A (en) * | 2018-11-28 | 2019-04-09 | 湖南科技大学 | Interior circulating dehumidification bulk curing barn baking system |
| CN210515067U (en) * | 2019-10-22 | 2020-05-12 | 广州市华德工业有限公司 | Roast room dry wet bulb temperature control system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112075656A (en) * | 2020-10-22 | 2020-12-15 | 中国农业科学院烟草研究所 | Intelligent control method for auxiliary dehumidification of closed circulation heat pump tobacco curing barn |
| CN112075656B (en) * | 2020-10-22 | 2021-12-24 | 中国农业科学院烟草研究所 | Intelligent control method for auxiliary dehumidification of closed circulation heat pump tobacco curing barn |
| CN112304040A (en) * | 2020-10-29 | 2021-02-02 | 广东海悟科技有限公司 | Method for controlling dry-wet bulb temperature of dryer, computer storage medium and dryer |
| CN112315013A (en) * | 2020-11-15 | 2021-02-05 | 云南省烟草农业科学研究院 | Tobacco leaf modulation method for preset power failure emergency treatment of air source heat pump tobacco curing house |
| CN112315012A (en) * | 2020-11-15 | 2021-02-05 | 云南省烟草农业科学研究院 | Method for regulating and controlling high temperature and low humidity in tobacco leaf modulation process and storage medium thereof |
| 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 |
| CN112401288A (en) * | 2020-12-04 | 2021-02-26 | 贵州省烟草科学研究院 | Tobacco leaf humidity control oven with double-humidity-control structure and control method thereof |
| CN112634598A (en) * | 2020-12-17 | 2021-04-09 | 西南大学 | Wireless data acquisition device, acquisition method, self-adaption method and use method |
| CN115127271A (en) * | 2022-07-06 | 2022-09-30 | 浙江正理生能科技有限公司 | Heat pump drying unit compressor control method and heat pump drying unit |
| CN115127271B (en) * | 2022-07-06 | 2023-09-01 | 浙江正理生能科技有限公司 | Control method for compressor of heat pump dryer unit and heat pump dryer unit |
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| CN110597332B (en) | 2024-02-27 |
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