CN113883881A - Baffle structure, air duct, drying equipment, drying system and control method thereof - Google Patents

Baffle structure, air duct, drying equipment, drying system and control method thereof Download PDF

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Publication number
CN113883881A
CN113883881A CN202111205100.4A CN202111205100A CN113883881A CN 113883881 A CN113883881 A CN 113883881A CN 202111205100 A CN202111205100 A CN 202111205100A CN 113883881 A CN113883881 A CN 113883881A
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CN
China
Prior art keywords
baffle
driving device
air
wind
fan
Prior art date
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Granted
Application number
CN202111205100.4A
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Chinese (zh)
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CN113883881B (en
Inventor
陈南庆
钟杭
曾显传
杨和澄
黄嘉希
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Filing date
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202111205100.4A priority Critical patent/CN113883881B/en
Publication of CN113883881A publication Critical patent/CN113883881A/en
Priority to PCT/CN2022/109453 priority patent/WO2023061003A1/en
Application granted granted Critical
Publication of CN113883881B publication Critical patent/CN113883881B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • 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
    • A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003—Supply-air or gas filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/10—Temperature; Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/22—Tobacco leaves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention relates to a baffle structure, an air duct, drying equipment, a drying system and a control method thereof, belonging to the technical field of drying equipment. When carrying out wind channel structure adjustment, according to the wind channel optimal solution state of fan gear condition matching to through drive arrangement's removal, drive baffle motion, in order to reacing the wind channel optimal solution state, thereby realize the adjustment to the wind channel structure, reduce the windage, guarantee that the air output satisfies the demand, improve heated air circulation efficiency.

Description

Baffle structure, air duct, drying equipment, drying system and control method thereof
Technical Field
The invention belongs to the technical field of drying equipment, and particularly relates to a baffle structure, an air duct, drying equipment, a drying system and a control method thereof.
Background
Drying equipment is widely used in many industries, for example, in the field of grain drying, tobacco drying, and the like. Taking a tobacco dryer as an example, when the tobacco dryer is assembled, hot air circulation is usually completed by matching a drying outer machine with a heating chamber, wherein the heating chamber consists of a condenser part, an axial flow fan and an electric heating part.
However, the split mounting type heating chamber mainly realizes hot air circulation by means of fan guide, and the heating chamber is rectangular, so that the air outlet resistance is large, and the hot air circulation efficiency is low.
Therefore, how to improve the hot air circulation efficiency of the heating chamber becomes a technical problem to be solved urgently in the prior art.
Disclosure of Invention
The invention provides a baffle plate structure, an air duct, drying equipment, a drying system and a control method thereof, and aims to solve the technical problems of large air outlet resistance and low hot air circulation efficiency of a heating chamber in the prior art.
The technical scheme provided by the invention is as follows:
in one aspect, a baffle structure, comprising: the device comprises a driving device and at least two baffles with different arrangement directions;
the baffles are connected; at least one baffle is connected with the driving device, and the driving device drives the baffle to move so as to realize the adjustment of the structure in the air duct.
Optionally, at least two the baffle is different with the horizontal direction contained angle, the number of baffle is at least three, the baffle includes: a first baffle, a second baffle and a third baffle; the number of the driving devices is at least two, and the driving devices comprise a first driving device and a second driving device; one end of the first baffle is connected with the first driving device; one end of the second baffle is connected with the second driving device;
the first driving device moves in the vertical direction;
the second driving means moves in the horizontal direction.
Optionally, at least one of the first baffle, the second baffle, and the third baffle is a retractable baffle.
Optionally, the third baffle includes: a first sub baffle and a second sub baffle; the first sub-baffle is connected with the second sub-baffle;
one end of the first sub-baffle is connected with the other end of the second baffle; the other end of the first sub-baffle is connected with one end of the second sub-baffle and the other end of the first baffle.
Optionally, the driving device further includes: a rotation driving device; the rotary driving device is connected with the third baffle.
Optionally, the rotary driving device is fixed on the inner wall of the air duct; and the rotary fixing device is connected with two ends of the third baffle plate through a fourth baffle plate and a fifth baffle plate.
In another aspect, the baffle structure is arranged in the air duct.
In still another aspect, a drying apparatus includes: a housing; the shell is internally provided with a heating device, a fan and the air duct; and the air generated by the fan is heated by the heating device and then is transmitted through the air channel.
Optionally, the housing is provided with: an air outlet and an air return port; the air outlet is communicated with the air duct; the air return opening and the air outlet are arranged in different directions.
In yet another aspect, a drying system includes: the drying equipment comprises an external machine device, a baking room and any one of the drying equipment;
the external machine equipment is connected with the drying equipment;
the drying equipment is connected with the curing barn.
Optionally, the drying device is connected to the curing barn through an air outlet formed in the housing and an air return opening formed in the housing.
Optionally, the air return inlet is connected with the curing barn through an air return transition air duct; the air outlet is connected with the curing barn through an air outlet transition air duct.
Optionally, a filter screen is arranged at the joint of the air return opening and the curing barn.
Optionally, the method further includes: the control assembly is connected with the driving device.
Optionally, an electric cabinet is arranged on the housing, and the control assembly is installed in the electric cabinet.
Optionally, the fan is a fixed-frequency fan, and the control component is configured to determine a movement parameter of the driving device according to different gears of the fan, and trigger the driving device to move according to the corresponding movement parameter.
Optionally, the fan is a variable frequency fan; the air outlet is provided with an air speed detection device, and the air speed detection device is used for detecting the air speed of the air outlet; the control assembly is used for determining the movement parameters of any one driving device as control parameters and the movement parameters of other driving devices as quantitative parameters; adjusting the driving device corresponding to the quantitative parameter to be in a quantitative state corresponding to the quantitative parameter; and determining a controllable interval of the control parameters, and adjusting the control parameters in the controllable interval after half division according to a half-division principle and the wind speed of the wind gap.
Optionally, the control component is configured to obtain a wind speed of the wind gap when the control parameter at the half-divide point runs, and if the wind speed of the wind gap does not meet a preset reference, half-divide the two sub-controllable intervals after half-dividing the control parameter again respectively to obtain the wind speed of the wind gap when the control parameter at the half-divide point of the two sub-controllable intervals after half-dividing again runs; determining the wind speed of the larger value of the wind speeds of the two wind ports when the control parameters of the half-divided points of the two sub-controllable intervals after the second half-division are operated; and judging whether the wind speed of the large value wind gap meets a preset standard or not, and if not, performing half-minute judgment on the sub-controllable interval corresponding to the wind speed of the large value wind gap again.
Optionally, the control component is further configured to: and judging the half-minute frequency of the controllable interval, and if the half-minute frequency exceeds a frequency threshold value, increasing the rotating speed of the motor and then judging whether the wind speed of the wind port meets a preset reference again.
In another aspect, a control method of a drying system is applied to the drying system, wherein at least one temperature detection component is further arranged in the baking room, and the temperature detection component is used for detecting a temperature value in the baking room; the air outlet is also provided with an air speed detection device, and the air speed detection device is used for detecting the air speed of the air outlet; the filter screen is a filter screen with a controllable switch; the control method comprises the following steps:
receiving the temperature value, and judging whether the temperature value is greater than a temperature threshold value; if all the temperature values are larger than the temperature threshold value, triggering the filter screen of the controllable switch to be opened;
acquiring wind speed of a wind port, and judging whether the wind speed of the wind port is less than a wind speed threshold value or not; and if the wind speed of the wind port is less than the wind speed threshold value, triggering the filter screen of the controllable switch to be closed.
In another aspect, a control method of a drying system is applied to the above drying system, and the control method includes: and when the fan is a fixed-frequency fan, determining the movement parameters of the driving device according to different gears of the fan, and triggering the driving device to move according to the corresponding movement parameters.
In another aspect, a control method of a drying system is applied to any one of the above drying systems, and the control method includes:
when the fan is a variable frequency fan, determining the movement parameter of any one driving device as a control parameter, and the movement parameters of other driving devices as quantitative parameters;
adjusting the driving device corresponding to the quantitative parameter to be in a quantitative state corresponding to the quantitative parameter;
and determining a controllable interval of the control parameters, and adjusting the control parameters in the controllable interval after half division according to a half-division principle and the wind speed of the wind gap.
The invention has the beneficial effects that:
according to the baffle plate structure, the air duct, the drying equipment, the drying system and the control method of the drying system provided by the embodiment of the invention, the baffle plate structure comprises the driving device and at least two baffle plates with different setting directions, the baffle plates are connected, at least one baffle plate is connected with the driving device, and the driving device drives the baffle plates to move, so that the adjustment of the structure in the air duct is realized. When carrying out wind channel structure adjustment, according to the wind channel optimal solution state of fan gear condition matching to through drive arrangement's removal, drive baffle motion, in order to reacing the wind channel optimal solution state, thereby realize the adjustment to the wind channel structure, reduce the windage, guarantee that the air output satisfies the demand, improve heated air circulation efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a baffle structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a drying apparatus according to an embodiment of the present invention;
fig. 3 is a schematic view of an internal structure of a drying apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a drying system according to an embodiment of the present invention;
FIG. 5 is a schematic view of a wind field simulation streamline generated by different wind channels according to an embodiment of the present invention; fig. 5(a) is a schematic view of a wind field simulation streamline generated without a wind channel, fig. 5(b) is a schematic view of a wind field simulation streamline generated by one wind channel structure, and fig. 5(c) is a schematic view of a wind field simulation streamline generated by another wind channel structure;
fig. 6 is a schematic flow chart of a control method of a drying system according to an embodiment of the present invention;
fig. 7 is a flowchart illustrating a control method of another drying system according to an embodiment of the present invention.
Fig. 8 is a flowchart illustrating a control method of another drying system according to an embodiment of the present invention.
Reference numerals: 11-a first baffle; 12-a second baffle; 13-a third baffle; 131-a first sub-baffle; 132-a second sub-baffle; 14-a fourth baffle; 15-a fifth baffle; 16-a sixth baffle; 17-a seventh baffle; 21-a first drive; 22-a second drive; 23-a rotary drive; 3-a shell; 31-a heating device; 311-a condenser; 312-an electrical heating assembly; 32-a fan; 33-an air duct; 34-an air outlet; 35-air return; 36-a stop valve; 4-an external unit device; 5-baking room; 6-drying equipment; 71-return air transition duct; 72-air outlet transition air duct; 8-a filter screen; 9-electric control box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The first embodiment is as follows:
in order to at least solve the technical problem proposed in the present invention, an embodiment of the present invention provides a baffle structure.
The baffle structure provided by the embodiment of the invention can be applied to an air duct, and specifically can comprise: the device comprises a driving device and at least two baffles with different arrangement directions. Wherein, the baffles are connected; at least one baffle is connected with a driving device, and the driving device drives the baffle to move so as to realize the adjustment of the structure in the air duct.
The driving device may be a crank block, a chain transmission device, a belt transmission device, a lead screw transmission device, or the like, and is not particularly limited in this embodiment. Wherein, the length and the width of baffle can be set according to user's demand. The setting direction of the baffle can be horizontal, vertical, inclined and the like.
According to the baffle plate structure provided by the embodiment of the invention, the driving device and at least two baffle plates with different setting directions are arranged, the baffle plates are connected, at least one baffle plate is connected with the driving device, and the driving device drives the baffle plates to move, so that the adjustment of the structure in the air channel is realized. When carrying out wind channel structure adjustment, according to the wind channel optimal solution state of fan gear condition matching to through drive arrangement's removal, drive baffle motion, in order to reacing the wind channel optimal solution state, thereby realize the adjustment to the wind channel structure, reduce the windage, guarantee that the air output satisfies the demand, improve heated air circulation efficiency.
Fig. 1 is a schematic structural diagram of a baffle structure according to an embodiment of the present invention, and in some embodiments, optionally, referring to fig. 1, at least two baffles have different included angles with a horizontal direction, the number of the baffles is at least three, and the baffles include: a first baffle 11, a second baffle 12 and a third baffle 13; the number of the driving devices is at least two, and the driving devices comprise a first driving device 21 and a second driving device 22; one end of the first baffle is connected with a first driving device; one end of the second baffle is connected with a second driving device. Wherein the first driving device may be a vertical driving device, moving in a vertical direction; the second driving means may be a horizontal driving means, moving in a horizontal direction.
In some embodiments, optionally, referring to fig. 1, the first baffle and the second baffle are retractable baffles.
For example, at least one of the first flap, the second flap, and the third flap may be a collapsible, telescoping flap.
In some embodiments, optionally, referring to fig. 1, the third baffle comprises: a first sub barrier 131 and a second sub barrier 132; the first sub-baffle is connected with the second sub-baffle;
one end of the first sub-baffle is connected with the other end of the second baffle; the other end of the first sub-baffle is connected with one end of the second sub-baffle and the other end of the first baffle.
For example, the first sub-barrier and the second sub-barrier may be rigidly connected.
In some embodiments, optionally, referring to fig. 1, the driving device further includes: a rotation driving device 23; the rotary driving device is connected with the third baffle.
In some embodiments, optionally, referring to fig. 1, the rotary drive is fixed to the inner wall of the air duct; the rotation fixing device is connected to both ends of the third barrier through a fourth barrier 14 and a fifth barrier 15.
It is worth mentioning that different vertical baffles and horizontal baffles can be set according to requirements to be combined with the baffle structure provided by the embodiment of the application, so that the adjustment of the air duct structure is further realized. The air duct structure provided by the embodiment of the invention can be an arc-like structure, and refer to fig. 1.
For example, by the first driving device, the movement along the vertical direction of the air duct can be realized; through the second driving device, the movement along the horizontal direction of the air duct can be realized. Sixth baffle 16, seventh baffle 17 may also be included. One end of the sixth baffle 16 may be connected to a horizontal baffle of the air duct, and may slide along the horizontal direction, and the other end of the sixth baffle 16 is connected to the rotation driving device. The fifth baffle plate and the fourth baffle plate can be coaxially driven by the rotary driving device after being rigidly connected by the connecting rod. When the rotary driving device rotates, the connected baffle is driven to move, and therefore the air duct structure is adjusted. The third baffle, the fourth baffle and the fifth baffle can form a parallelogram structure, so that the rotation is more stable. The right end of the seventh baffle can be connected with the air duct vertical baffle and slides along the vertical direction, the position of the third baffle can be adjusted through rotation of the selection driving device, and the adjustment of the structural state of the whole baffle can be realized through actions of the second driving device and the first driving device which are respectively connected with the second baffle and the first baffle, so that the adjustment of the air duct structure is realized.
Example two:
based on a general inventive concept, the embodiment of the present invention also provides an air duct.
In the air duct provided by the embodiment of the invention, the baffle plate structure described in any one of the embodiments is arranged in the air duct.
In some embodiments, optionally, a horizontal baffle, a vertical baffle, and the baffle structure described in any of the above embodiments are provided in the air duct, and the baffle structure is connected to the horizontal baffle and the vertical baffle.
According to the air duct provided by the embodiment of the invention, the driving device and at least two baffles with different setting directions are arranged on the baffle structure, the baffles are connected, at least one baffle is connected with the driving device, and the driving device drives the baffles to move, so that the adjustment of the inner structure of the air duct is realized. When carrying out wind channel structure adjustment, according to the wind channel optimal solution state of fan gear condition matching to through drive arrangement's removal, drive the baffle motion, thereby realize reducing the windage to the adjustment of wind channel structure, in order to reach the wind channel optimal solution state, guarantee that the air output satisfies the demand, improve heated air circulation efficiency.
Example three:
based on one general inventive concept, the embodiment of the present invention also provides a drying apparatus.
Fig. 2 is a schematic structural diagram of a drying apparatus provided in an embodiment of the present invention, and fig. 3 is a schematic internal structural diagram of a drying apparatus provided in an embodiment of the present invention.
Referring to fig. 2 and 3, a drying apparatus provided in an embodiment of the present invention may include: a housing 3; a heating device 31, a fan 32 and an air duct 33 described in any of the above embodiments are provided in the housing; the wind that the fan produced is transmitted through the wind channel after heating by heating device.
Wherein, the heating device 31 may include: a condenser 311 and an electric heating assembly 312. In order to ensure the air outlet effect, an air duct 33 may be disposed below the fan 32. Wherein, the fan can be a condensing fan.
In some embodiments, optionally, the housing is provided with: an air outlet 34 and an air return 35; the air outlet is communicated with the air duct; the setting directions of the air return inlet and the air outlet are different.
For example, the air return opening may be disposed at the top of the housing, and the air outlet may be disposed at a position near the bottom of the side of the housing, so as to realize hot air circulation; the air return opening can also be arranged on the side surface of the shell, and the air outlet can be arranged on the side surface adjacent to the air return opening, which is not specifically limited in this embodiment.
In this application, drying equipment is integrated form drying equipment, with main components and parts and wind channel integrated design, replaces common heating chamber form in the market, engineering simple to operate, and the installation quality is controlled. And positive and negative pressure of the condensing fan is separated, so that air is conveniently discharged. Meanwhile, the integrated equipment has strong applicability and can be applied to various occasions.
According to the drying equipment provided by the embodiment of the invention, the driving device and at least two baffles with different arrangement directions are arranged on the baffle structure, the baffles are connected, at least one baffle is connected with the driving device, and the driving device drives the baffles to move, so that the adjustment of the structure in the air duct is realized. When carrying out wind channel structure adjustment, according to the wind channel optimal solution state of fan gear condition matching to through drive arrangement's removal, drive baffle motion, in order to reacing the wind channel optimal solution state, thereby realize the adjustment to the wind channel structure, reduce the windage, guarantee that the air output satisfies the demand, improve heated air circulation efficiency.
Example four:
based on a general inventive concept, the embodiment of the present invention also provides a drying system.
Fig. 4 is a schematic structural diagram of a drying system according to an embodiment of the present invention, and referring to fig. 4, the drying system according to the embodiment of the present invention may include: an external machine 4, a baking room 5 and a drying device 6 according to any of the above embodiments. Wherein, the external machine equipment is connected with the drying equipment; the drying equipment is connected with the curing barn.
Referring to fig. 3 and 4, the external device may be connected to the drying device through a stop valve 36, and the external device provides necessary support for hot air circulation for the drying device. According to the embodiment of the invention, the drying equipment is arranged in an integrated manner, so that positive and negative pressure areas of the condensing fan are effectively separated, the air outlet backflow is prevented, the hot air circulation is prevented from being influenced, and the drying efficiency is improved.
In some embodiments, optionally, the drying device is connected to the curing barn through an air outlet provided on the housing and an air return opening provided on the housing.
In some embodiments, and optionally referring to fig. 2-4, the return air inlet is connected to the baking room by a return air transition duct 71; the air outlet is connected with the curing barn through an air outlet transition duct 72.
For example, in the hot air circulation process, hot air can enter the air outlet transition air duct through the air outlet so as to enter the baking room, and the returned hot air enters the drying equipment through the air return transition air duct and the air return opening so as to realize hot air circulation and dry objects in the baking room.
Wherein, the baking house can be used for drying the tobacco.
In some embodiments, optionally, a filter screen 8 is disposed at the connection between the return air inlet and the curing barn.
For example, for tobacco drying, a filter screen is arranged to filter impurities generated in the drying process so as to prevent the impurities from falling onto a condenser and affecting heat exchange.
In some embodiments, optionally, the method further includes: the control assembly is connected with the driving device.
Wherein, the filter screen can be a filter screen with a controllable switch. The controllable switch filter screen is connected with the control component, at least one temperature detection component is also arranged in the baking room, and the temperature detection component is used for detecting the temperature value in the baking room; the air outlet is also provided with an air speed detection device, and the air speed detection device is used for detecting the air speed of the air outlet; the filter screen is a filter screen with a controllable switch; the control component can be used for receiving the temperature value and judging whether the temperature value is greater than a temperature threshold value; if all the temperature values are greater than the temperature threshold value, triggering the filter screen of the controllable switch to be opened; acquiring the wind speed of a wind port, and judging whether the wind speed of the wind port is less than a wind speed threshold value or not; and if the wind speed of the wind port is less than the wind speed threshold value, triggering the filter screen of the controllable switch to be closed.
Wherein, the number of temperature detect component can be 2, sets up respectively in the one end that is close to the air outlet of roast room and the one end of keeping away from the air outlet, both ends around roast room promptly to detect the temperature value of different positions in the roast room. It should be noted that the number and the arrangement positions of the temperature detection components in this embodiment are merely examples, and are not limited.
In this embodiment, the temperature values detected by the 2 temperature detection assemblies may be recorded as T1 and T2; the temperature threshold can be set according to the limit temperature of the tobacco drying entering the dry rib state, and the temperature threshold is recorded as T0. And when all the temperature values are judged to be greater than the temperature threshold value, namely T1> T0 and T2> T0, triggering the filter screen of the controllable switch to be opened. Acquiring wind speed of a wind port, recording as FV1, wherein the wind speed threshold is FVX, and when the wind speed of the wind port is judged to be greater than or equal to the wind speed threshold, namely FV1 is greater than or equal to FVX, the filter screen of the controllable switch is kept in an open state; when FV1< FVX, the controllable switch is triggered to close the filter screen. For achieving the filtering effect, the interval duration may be set, and the determination may be repeated, for example, the interval duration may be set to 30 minutes, or may also be set to 25 minutes, which is not limited in this embodiment. The wind speed threshold may be set as required, and is not specifically limited this time.
When the tobacco is dried, the requirements on moisture removal and air quantity are high in the middle drying period, and at the moment, fewer impurities are generated; and in the later stage of drying, the requirement on air volume is lower, the generated impurities are more, and the filter screen needs to be opened to filter the impurities. The filter screen can be closed when the wind speed of the wind port is greater than the wind speed threshold value.
In some embodiments, optionally, an electric cabinet 9 is provided on the housing, and the control assembly is mounted in the electric cabinet.
For example, a control component, such as a single chip microcomputer, may be disposed in the electrical cabinet to protect the control component.
In this embodiment, the adjustment state of the air duct is determined by the structural state of the baffle plate, i.e., by the parameters of the driving device.
In some embodiments, optionally, the fan is a fixed-frequency fan, and the control component is configured to determine a movement parameter of the driving device according to different gears of the fan, and trigger the driving device to move according to the corresponding movement parameter.
When the fan is a fixed-frequency fan, the gear of the fan can be determined, so that the movement parameters of the driving device can be adjusted, and the driving device can move according to the movement parameters.
Wherein, the movement parameters can be determined and recorded according to the scheme simulation. The optimal state corresponding to different gears is determined through simulation experiments, and the gears of the fan can comprise: q (high), W (medium), R (neutral). In this embodiment, whether the state meets the requirement can be checked through a scheme trial baking. And the optimal state corresponding to different gear conditions of the fan is the optimal solution state.
For example, when the fan is in a high gear, the optimal movement parameters corresponding to the three driving devices, namely the vertical driving device, the horizontal driving device and the rotary driving device, are Dq, Eq and Fq respectively, and are recorded as Q ═ Dq + Eq + Fq; when the fan is in a middle gear, the optimal movement parameters corresponding to the three driving devices, namely the vertical driving device, the horizontal driving device and the rotary driving device, are Dw, Ew and Fw respectively, and are recorded as W ═ Dw + Ew + Fw; when the fan is in a low gear, optimal movement parameters corresponding to the three driving devices, namely the vertical driving device, the horizontal driving device and the rotary driving device are Dr, Er and Fr respectively, and are recorded as R ═ Dr + Er + Fr.
When the running state of the motor is high-grade, the optimal movement parameters corresponding to the vertical driving device, the horizontal driving device and the rotary driving device can be respectively determined to be Dq, Eq and Fq; when the running state of the fan is in a middle gear, the optimal movement parameters corresponding to the vertical driving device, the horizontal driving device and the rotary driving device can be determined to be Dw, Ew and Fw respectively; when the running state of the fan is in a low gear, the optimal movement parameters corresponding to the vertical driving device, the horizontal driving device and the rotary driving device are Dr, Er and Fr respectively.
Fig. 5 is a schematic view of wind field simulation streamlines generated by different wind channels according to an embodiment of the present invention, where fig. 5(a) is a schematic view of wind field simulation streamlines generated without a wind channel, fig. 5(b) is a schematic view of wind field simulation streamlines generated by a wind channel structure, and fig. 5(c) is a schematic view of another wind field simulation streamline generated by a wind channel structure. Referring to fig. 5, for different gear operation of the fan, that is, different air quantities, the influence of the air duct structure on the air outlet effect is different. Therefore, the position of each driving device under the optimal air duct state structure is determined through simulation for the gear of each fan, and recording is carried out. Thus, according to the recorded results, the movement parameters of each drive device are determined at different windscreens.
The moving parameters of the horizontal driving device and the vertical driving device can be the number of turns of rotation; the moving parameter of the rotation driving device may be a rotation angle, and is not particularly limited in this embodiment.
In some embodiments, optionally, the fan is a variable frequency fan; the air outlet is provided with an air speed detection device, and the air speed detection device is used for detecting the air speed of the air outlet; the control assembly is used for determining the movement parameters of any one driving device as control parameters and the movement parameters of other driving devices as quantitative parameters; adjusting the driving device corresponding to the quantitative parameters to be in a quantitative state corresponding to the quantitative parameters; and determining a controllable interval of the control parameters, and adjusting the control parameters in the controllable interval after half division according to a half-division principle and the wind speed of the wind inlet.
In some embodiments, optionally, the control component is configured to obtain a wind speed of the wind gap when the control parameter at the half-divided point operates, and if the wind speed of the wind gap does not meet the preset reference, respectively half-dividing the control parameter again into two sub-controllable intervals, and obtaining the wind speed of the wind gap when the control parameter at the half-divided point of the two sub-controllable intervals half-divided again operates; determining the wind speed of the larger value of the wind speeds of the two wind ports when the control parameters of the half-divided points of the two sub-controllable intervals after the second half-division are operated; and judging whether the wind speed of the large value wind gap meets the preset reference, and if not, performing half-minute judgment on the sub-controllable interval corresponding to the wind speed of the large value wind gap again.
In some embodiments, optionally, the control component is further configured to: and judging the half-minute frequency of the controllable interval, and if the half-minute frequency exceeds a frequency threshold value, increasing the rotating speed of the motor and then judging whether the wind speed of the wind port meets the preset reference again.
When the fan is a variable frequency fan, one of the driving devices can be selected as a control driving device, the movement parameters corresponding to the control driving device are control parameters, and the movement parameters of the rest of the driving devices are regarded as quantitative parameters. For example, in this embodiment, the rotary driving device may be selected as the control driving device, so as to adjust the movement parameters of the other driving devices to the set quantitative parameters. The controllable interval of the movement parameter F of the rotation driving device is set, that is, the rotation angle range is [ a, b ], where a is the initial angle and b is the maximum rotation angle.
According to the principle of halving, the controllable interval is halved, i.e. F ═ b-a)/2+ a; and detecting the wind speed Fv of the wind gap corresponding to the F at the moment, and judging whether the FV meets a preset reference. The preset reference may be whether the wind speed of the wind port is greater than the wind speed threshold FVX, for example, it may be set that the preset reference is satisfied when the wind speed of the wind port is greater than the wind speed threshold. And when the preset reference is not met, performing half-minute comparison again.
And (3) half-score left-right comparison judgment: f ═ 4+ a, (b-a)/3 (b-a)/4+ a;
and (3) respectively detecting the wind speed Fv of the wind gap in two states, and judging the maximum wind speed Fv: the requirement is satisfied (holding state), and the requirement is not satisfied (adjustment state is judged again).
Let the wind speed corresponding to F ═ b-a)/4 be Fv2, and the wind speed corresponding to F ═ 3(b-a)/4 be Fv 3;
if Fv 2> Fv3, half-split comparisons are made to the [ a, (b-a)/2+ a ] interval;
if Fv2 is less than Fv3, half-split comparison is carried out in the range of [ (b-a)/2+ a, b ];
and repeating the judging steps to judge.
In this embodiment, the number threshold may be 5, and if Fv does not satisfy FvX after 5 determinations, the rotation speed of the fan is increased, that is, half the fan state frequency is increased, and then the half determination is performed.
According to the drying system provided by the embodiment of the invention, the driving device and at least two baffles with different setting directions are arranged on the baffle structure, the baffles are connected, at least one baffle is connected with the driving device, and the driving device drives the baffles to move, so that the adjustment of the structure in the air duct is realized. When carrying out wind channel structure adjustment, according to the wind channel optimal solution state of fan gear condition matching to through drive arrangement's removal, drive baffle motion, in order to reacing the wind channel optimal solution state, thereby realize the adjustment to the wind channel structure, reduce the windage, guarantee that the air output satisfies the demand, improve heated air circulation efficiency.
Example five:
based on a general inventive concept, the embodiment of the present invention also provides a control method of a drying system.
Fig. 6 is a schematic flow chart of a control method of a drying system according to an embodiment of the present invention, which is applied to the drying system described in the above embodiment, wherein at least one temperature detecting assembly is further disposed in the curing barn, and the temperature detecting assembly is used for detecting a temperature value in the curing barn; the air outlet is also provided with an air speed detection device, and the air speed detection device is used for detecting the air speed of the air outlet; the filter screen is a filter screen with a controllable switch; referring to fig. 6, the method provided by the embodiment of the invention may include the following steps:
s61, receiving the temperature value, and judging whether the temperature value is larger than a temperature threshold value; if all the temperature values are greater than the temperature threshold value, triggering the filter screen of the controllable switch to be opened;
s62, acquiring the wind speed of the wind port, and judging whether the wind speed of the wind port is less than a wind speed threshold value; and if the wind speed of the wind port is less than the wind speed threshold value, triggering the filter screen of the controllable switch to be closed.
With regard to the method in the above-described embodiment, the specific manner in which each step performs the operation has been described in detail in the embodiment related to the system, and will not be elaborated upon here.
According to the control method of the drying system provided by the embodiment of the invention, the switch of the filter screen is adjusted according to the temperature value and the air volume, impurities of the object to be dried in the drying process are filtered, and meanwhile, the air volume is ensured to meet the requirement.
Example six:
based on a general inventive concept, the embodiment of the present invention also provides another control method of a drying system.
Fig. 7 is a flowchart illustrating a control method of another drying system according to an embodiment of the present invention, which is applied to the drying system described in the above embodiment, and referring to fig. 7, the method according to the embodiment of the present invention may include the following steps:
s71, when the fan is a fixed-frequency fan, determining the movement parameters of the driving device according to different gears of the fan; and triggering the driving device to move according to the corresponding moving parameters.
With regard to the method in the above-described embodiment, the specific manner in which each step performs the operation has been described in detail in the embodiment related to the system, and will not be elaborated upon here.
According to the control method of the drying system provided by the embodiment of the invention, when the fan is the fixed-frequency fan, the driving device is triggered to operate according to the actual operating gear of the fan, and the air guide structure is adjusted, so that the adjustment of the air channel structure is realized, the wind resistance of hot air circulation is reduced, and the drying quality is ensured.
Example seven:
based on a general inventive concept, the embodiment of the present invention also provides another control method of a drying system.
Fig. 8 is a flowchart illustrating a control method of another drying system according to an embodiment of the present invention, which is applied to the drying system described in the above embodiment, and referring to fig. 7, the method according to the embodiment of the present invention may include the following steps:
s81, when the fan is a variable frequency fan, determining the movement parameters of any one driving device as control parameters and the movement parameters of other driving devices as quantitative parameters;
s82, adjusting the drive device corresponding to the quantitative parameter to be in a quantitative state corresponding to the quantitative parameter;
and S83, determining a controllable interval of the control parameters, and adjusting the control parameters in the controllable interval after half division according to a half-division principle and the wind speed of the wind gap.
With regard to the method in the above-described embodiment, the specific manner in which each step performs the operation has been described in detail in the embodiment related to the system, and will not be elaborated upon here.
According to the control method of the drying system provided by the embodiment of the invention, when the fan is a variable frequency fan, the drive device corresponding to the quantitative parameter is adjusted to be in the quantitative state corresponding to the quantitative parameter by selecting the variable parameter and the quantitative parameter; and determining a controllable interval of the control parameters, adjusting the control parameters in the controllable interval after half division through a half-division principle and the air speed of the air port, triggering the driving device to operate, and adjusting the air guide structure, so that the adjustment of the air channel structure is realized, the wind resistance of hot air circulation is reduced, and the drying quality is ensured.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (22)

1. A baffle structure, comprising: the device comprises a driving device and at least two baffles with different arrangement directions;
the baffles are connected; at least one baffle is connected with the driving device, and the driving device drives the baffle to move so as to realize the adjustment of the structure in the air duct.
2. The baffle structure of claim 1 wherein at least two of said baffles have different included angles with the horizontal, the number of said baffles being at least three, said baffles comprising: a first baffle, a second baffle and a third baffle; the number of the driving devices is at least two, and the driving devices comprise a first driving device and a second driving device; one end of the first baffle is connected with the first driving device; one end of the second baffle is connected with the second driving device;
the first driving device moves in the vertical direction;
the second driving means moves in the horizontal direction.
3. The baffle structure of claim 2 wherein at least one of the first, second and third baffles is a retractable baffle.
4. The baffle structure of claim 2 wherein the third baffle comprises: a first sub baffle and a second sub baffle; the first sub-baffle is connected with the second sub-baffle;
one end of the first sub-baffle is connected with the other end of the second baffle; the other end of the first sub-baffle is connected with one end of the second sub-baffle and the other end of the first baffle.
5. The baffle structure of claim 2 wherein the drive means further comprises: a rotation driving device; the rotary driving device is connected with the third baffle.
6. The baffle structure of claim 5 wherein said rotary drive means is fixed to the inner wall of the duct; and the rotary fixing device is connected with two ends of the third baffle plate through a fourth baffle plate and a fifth baffle plate.
7. An air duct, characterized in that the baffle structure of any one of claims 1 to 6 is provided in the air duct.
8. A drying apparatus, characterized by comprising: a housing; a heating device, a fan and the air duct of claim 7 are arranged in the shell; and the air generated by the fan is heated by the heating device and then is transmitted through the air channel.
9. The drying apparatus of claim 8, wherein the casing is provided with: an air outlet and an air return port; the air outlet is communicated with the air duct; the air return opening and the air outlet are arranged in different directions.
10. A drying system, comprising: an external machine device, a baking room and a drying device according to any one of claims 8 to 9;
the external machine equipment is connected with the drying equipment;
the drying equipment is connected with the curing barn.
11. The drying system of claim 10, wherein the drying apparatus is connected to the curing barn through an air outlet provided in the housing and an air return provided in the housing.
12. The drying system of claim 11, wherein said return air inlet is connected to said flue-curing barn by a return air transition duct; the air outlet is connected with the curing barn through an air outlet transition air duct.
13. The drying system of claim 11, wherein a filter screen is disposed at a junction of the return air inlet and the curing barn.
14. The drying system of claim 11, further comprising: the control assembly is connected with the driving device.
15. The drying system of claim 14, wherein an electrical cabinet is disposed on the housing, and the control assembly is mounted within the electrical cabinet.
16. The drying system of claim 14, wherein the fan is a fixed frequency fan, and the control component is configured to determine movement parameters of the driving device according to different gears of the fan, and trigger the driving device to move according to the corresponding movement parameters.
17. The drying system of claim 14, wherein the fan is a variable frequency fan; the air outlet is provided with an air speed detection device, and the air speed detection device is used for detecting the air speed of the air outlet; the control assembly is used for determining the movement parameters of any one driving device as control parameters and the movement parameters of other driving devices as quantitative parameters; adjusting the driving device corresponding to the quantitative parameter to be in a quantitative state corresponding to the quantitative parameter; and determining a controllable interval of the control parameters, and adjusting the control parameters in the controllable interval after half division according to a half-division principle and the wind speed of the wind gap.
18. The drying system of claim 17, wherein the control component is configured to obtain a wind speed of the wind gap when the control parameter at the half-divided point runs, and if the wind speed of the wind gap does not meet a preset reference, half-divide the control parameter into two sub-controllable intervals after half-divided, respectively, and obtain the wind speed of the wind gap when the control parameter at the half-divided point of the two sub-controllable intervals after half-divided again runs; determining the wind speed of the larger value of the wind speeds of the two wind ports when the control parameters of the half-divided points of the two sub-controllable intervals after the second half-division are operated; and judging whether the wind speed of the large value wind gap meets a preset standard or not, and if not, performing half-minute judgment on the sub-controllable interval corresponding to the wind speed of the large value wind gap again.
19. The drying system of claim 18, wherein the control assembly is further configured to: and judging the half-minute frequency of the controllable interval, and if the half-minute frequency exceeds a frequency threshold value, increasing the rotating speed of the motor and then judging whether the wind speed of the wind port meets a preset reference again.
20. A control method of a drying system, which is applied to the drying system of claim 13, wherein at least one temperature detection component is further arranged in the baking room, and the temperature detection component is used for detecting a temperature value in the baking room; the air outlet is also provided with an air speed detection device, and the air speed detection device is used for detecting the air speed of the air outlet; the filter screen is a filter screen with a controllable switch; the control method comprises the following steps:
receiving the temperature value, and judging whether the temperature value is greater than a temperature threshold value; if all the temperature values are larger than the temperature threshold value, triggering the filter screen of the controllable switch to be opened;
acquiring wind speed of a wind port, and judging whether the wind speed of the wind port is less than a wind speed threshold value or not; and if the wind speed of the wind port is less than the wind speed threshold value, triggering the filter screen of the controllable switch to be closed.
21. A control method of a drying system, applied to the drying system of claim 16, the control method comprising: and when the fan is a fixed-frequency fan, determining the movement parameters of the driving device according to different gears of the fan, and triggering the driving device to move according to the corresponding movement parameters.
22. A control method of a drying system, applied to the drying system of any one of claims 17-19, the control method comprising:
when the fan is a variable frequency fan, determining the movement parameter of any one driving device as a control parameter, and the movement parameters of other driving devices as quantitative parameters;
adjusting the driving device corresponding to the quantitative parameter to be in a quantitative state corresponding to the quantitative parameter;
and determining a controllable interval of the control parameters, and adjusting the control parameters in the controllable interval after half division according to a half-division principle and the wind speed of the wind gap.
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