CN111587934A - Hot air generating device for tea leaf fixation machine and control method thereof - Google Patents
Hot air generating device for tea leaf fixation machine and control method thereof Download PDFInfo
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- CN111587934A CN111587934A CN202010547526.7A CN202010547526A CN111587934A CN 111587934 A CN111587934 A CN 111587934A CN 202010547526 A CN202010547526 A CN 202010547526A CN 111587934 A CN111587934 A CN 111587934A
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- 241001122767 Theaceae Species 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims description 29
- 238000005192 partition Methods 0.000 claims description 22
- 239000000779 smoke Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 18
- 238000004321 preservation Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000018044 dehydration Effects 0.000 abstract description 11
- 238000006297 dehydration reaction Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 102000004190 Enzymes Human genes 0.000 description 20
- 108090000790 Enzymes Proteins 0.000 description 20
- 230000009849 deactivation Effects 0.000 description 11
- 239000002028 Biomass Substances 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/008—Air heaters using solid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/189—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2092—Arrangement or mounting of control or safety devices for air heaters using solid fuel
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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
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Tea And Coffee (AREA)
Abstract
The invention discloses a hot air generating device for a tea leaf fixation machine and a control method thereof. The invention comprises an insulation can, wherein the left wall of the insulation can is connected with a hot air pipe, the lower part of the left side of the insulation can is provided with a combustion furnace, the lower part of the right side of the insulation can is provided with a combustion chamber, a flame guide pipe circulating air heating device is arranged above the combustion chamber, and the right wall of the insulation can is connected with a fan; the flame guide pipe circulating air heating device is connected with the hot air pipe through the hot air cavity, and the flame guide pipe circulating air heating device is connected with the fan through the air inlet pipe. The invention has the advantages that the invention can generate overheated hot air, the temperature of the hot air can reach 400-. The water removing method does not need the dehydration procedure after the traditional water removing, and can avoid using corresponding equipment used in the dehydration procedure, thereby greatly reducing the production cost.
Description
Technical Field
The invention relates to the field of tea processing equipment, in particular to a hot air generating device for a tea enzyme deactivating machine and a control method thereof.
Background
The matched hot air generator for the tea leaf fixation machine generally adopts an electric heating tube for heating at present, and some hot air generators also adopt combustion firewood or coal to heat air in a closed cavity to generate hot air. In the existing mode, under the standard atmospheric pressure, the temperature of water vapor is about 100 ℃, the temperature of continuously heating the water vapor can reach 130-150 ℃, but the generated steam is less in quantity, low in temperature and high in water content, and the water content of the enzyme-deactivated leaves is 80-82% after enzyme deactivation.
However, according to the requirement of the tea making process, the next process can be carried out when the water content of the enzyme-deactivating leaves is 58-60%. Therefore, the existing hot air fixation method is not enough in dehydration, and the moisture content of the fixation leaves can be reduced to 58-60% only by hot air drying dehydration. Therefore, the existing hot air fixation machine needs to be provided with two devices, namely a hot air furnace and a dehydrator, hot air generated by the hot air furnace is introduced into the dehydrator or a dehydration device, and the fixation leaves are dried by hot air, so that the water content of the fixation leaves can be reduced to 58-60%.
But the fixation is carried out by a hot-blast stove and a dehydrator, the fixation leaves are easy to generate the phenomenon of scorching in the dehydrator, and the quality of the tea leaves is damaged. Meanwhile, the preservation time of the fresh leaves is only 4 hours, the water-removing time is long, and the production efficiency is low, so that the existing mode is only suitable for small-sized enterprises with small scale and low yield.
In summary, the following steps: the prior art has the problems that the fixation is long in time, the fixation leaves are easy to have a burnt edge phenomenon, and the quality of tea leaves is damaged.
Disclosure of Invention
The invention aims to provide a hot air generating device for a tea leaf fixation machine and a control method thereof. The invention has the advantages that the invention can generate overheated hot air, the temperature of the hot air can reach 400-. The water removing method does not need the dehydration procedure after the traditional water removing, and can avoid using corresponding equipment used in the dehydration procedure, thereby greatly reducing the production cost. The rapid enzyme deactivation of the invention greatly improves the production efficiency, so that the invention can be suitable for large-scale processing production.
The technical scheme of the invention is as follows: a hot air generating device for a tea enzyme deactivating machine comprises an insulation can, wherein the left wall of the insulation can is connected with a hot air pipe, the lower part of the left side of the insulation can is provided with a combustion furnace, the lower part of the right side of the insulation can is provided with a combustion chamber, a flame guide pipe circulating air heating device is arranged above the combustion chamber, and the right wall of the insulation can is connected with a fan; the flame guide pipe circulating air heating device is connected with the hot air pipe through the hot air cavity, and the flame guide pipe circulating air heating device is connected with the fan through the air inlet pipe.
In the hot air generating device for the tea leaf enzyme deactivating machine, the flame guide pipe circulating air heating device comprises a bottom plate and a top plate, the front sides and the rear sides of the bottom plate and the top plate are respectively connected through side plates, the bottom plate is connected with a group of first partition plates, a second partition plate is arranged between every two adjacent first partition plates, and the second partition plate is connected with the top plate; flame guide pipes penetrate through the first partition plate and the second partition plate; an air inlet and an air outlet are formed in the top plate; the bottom plate is connected with the combustion chamber; the air inlet is connected with an air inlet pipe; the air outlet is connected with the hot air cavity.
In the aforementioned hot air generating device for a tea leaf de-enzyming machine, the flame guide pipe is provided with 120 pieces of 126 pieces.
In the hot air generating device for the tea green removing machine, a smoke outlet cavity is arranged beside the right end of the flame guide pipe, the smoke outlet cavity is connected with a smoke guide pipe, and the smoke guide pipe is connected with an exhaust fan.
In the hot air generating device for the tea leaf fixation machine, the hot air pipe is connected with the hot air pipeline, and the hot air pipeline is provided with the temperature sensor, the flow sensor and the proportional control valve.
In the hot air generating device for the tea leaf fixation machine, the top parts of the combustion furnace and the combustion chamber are respectively provided with the feed inlet, the feeding device is arranged above the feed inlet, and the feeding device is provided with the temperature sensor, the brightness sensor and the ignition device.
In the hot air generating device for the tea leaf enzyme deactivating machine, the combustion furnace is provided with an air supply outlet and an ash discharge outlet; the air supply outlet is connected with an air blower.
In the hot air generating device for the tea leaf enzyme deactivating machine, the heat insulation box is provided with a control box, and a microprocessor, a touch display screen, a driving module and a switch module are arranged in the control box; the microprocessor is connected with the touch display screen, the brightness sensor, the temperature sensor, the flow sensor, the driving module and the switch module; the driving module is connected with the feeding device and the proportional control valve; the switch module is connected with the ignition device, the blower and the exhaust fan.
A control method of a hot air generating device of a tea leaf fixation machine comprises the following steps:
a. the brightness sensor detects the brightness of flame, when no flame is detected, a detection signal is sent to the microprocessor, the microprocessor sends a signal to the switch module, and the switch module turns on the ignition device to ignite fuel; when the detected flame is lower than the preset value, a detection signal is sent to the microprocessor, the microprocessor sends a signal to the driving module, and the driving module starts the feeding device to feed fuel;
b. the temperature sensor detects the temperature of the hot air, when the detected temperature of the hot air is lower than a preset value, a detection signal is sent to the microprocessor, the microprocessor sends a signal to the driving module, and the driving module starts the feeding device to feed fuel; when the temperature of the hot air reaches a preset value, a detection signal is sent to the microprocessor, the microprocessor sends a signal to the driving module, and the driving module closes the feeding device and stops feeding fuel;
c. the flow sensor detects the output flow of hot air, when the output flow of the hot air in the hot air pipeline is lower than a preset value, a detection signal is sent to the microprocessor, the microprocessor sends a signal to the driving module, and the driving module starts the proportional control valve to increase the output flow of the hot air; when the output flow of the hot air in the hot air pipeline reaches a preset value, a detection signal is sent to the microprocessor, the microprocessor sends a signal to the driving module, and the driving module stops the proportional control valve and keeps the output flow of the hot air;
d. the hot air temperature value, the hot air flow value and the flame brightness are displayed on the touch display screen, switches of the ignition device, the air blower, the exhaust fan and the fan are displayed, and manual touch screen operation can be achieved on the touch display screen.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can generate the overheated hot air with the temperature of 400-500 ℃. The method for generating the superheated hot air by using the invention comprises the following steps: the heat of the fuel in the combustion furnace directly burns the flame guide pipe in the hot blast furnace to red, and simultaneously the combustion chamber also heats the circulating air heating device of the flame guide pipe, the temperature of the flame guide pipe reaches about 1000 ℃, the air flows back and forth in the circulating air heating device of the flame guide pipe up and down and continuously passes through the flame guide pipe and is heated, thus the passing air is heated by repeatedly heating the heat guide pipe, the temperature of the air in the flame guide pipe can reach 600-700 ℃, and the air is still overheated hot air with the temperature of 400-500 ℃ after passing through the hot air cavity, the hot air pipe and the hot air pipe. The fresh leaves are subjected to enzyme deactivation by the superheated hot air with the temperature of 400-500 ℃ generated by the invention, and tests show that the superheated hot air is introduced into a groove type continuous enzyme deactivation machine for enzyme deactivation, and only 15 seconds are needed for completing one-time enzyme deactivation.
2. The invention produces the overheated hot air to remove the green, the overheated hot air is led into the fixation machine to heat the whole fresh leaves to remove the green, the fixation time is as short as about 15 seconds, therefore, the tea fixation of the invention can ensure the fixation quality, the fixation leaves can not be burnt, and the invention has the advantage of not damaging the tea quality during fixation.
3. The superheated hot air generated by the invention can complete the enzyme deactivation at one time, does not need the dehydration procedure after the traditional enzyme deactivation, and can avoid using corresponding equipment used in the dehydration procedure, thereby greatly reducing the production cost.
4. The invention has high efficiency of completing one-time enzyme deactivation within about 15 seconds, greatly reduces the current enzyme deactivation time, greatly improves the production efficiency and is suitable for large-scale processing production.
5. The invention also provides a microprocessor, a switch module, a driving module, a sensor and other components, thereby realizing the control of the device and being convenient to control. If a temperature sensor, a flow sensor and a proportional control valve are arranged on the hot air delivery pipeline, the flow of hot air is determined according to the quantity of the de-enzymed fresh leaves, and the flow of the output hot air can be controlled through the proportional control valve. The observation of the temperature value and the flow value can reflect the amount of the generated hot air, and the fuel is added to generate the hot air, so that the self-adaptive adjustment can not cause energy waste and also achieves the purpose of energy conservation.
In summary, the following steps: the invention has the advantages that the invention can generate overheated hot air, the temperature of the hot air can reach 400-. The water removing method does not need the dehydration procedure after the traditional water removing, and can avoid using corresponding equipment used in the dehydration procedure, thereby greatly reducing the production cost. The rapid enzyme deactivation of the invention greatly improves the production efficiency, so that the invention can be suitable for large-scale processing production. Meanwhile, the control mode provided by the invention can save energy.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1;
FIG. 3 is a schematic view of the heat generated by the furnace and the flow direction of flue gas;
FIG. 4 is a schematic view of the flow direction of the superheated air produced by the present invention;
FIG. 5 is a schematic left side view of the structure of FIG. 1;
FIG. 6 is a partial cross-sectional structural schematic view of FIG. 5;
FIG. 7 is an enlarged schematic view of the pilot flame tube circulating air heating apparatus shown in FIG. 2;
FIG. 8 is a schematic view of the structure of the pilot flame tube circulating air heating apparatus;
FIG. 9 is a schematic top view of the structure of FIG. 8;
fig. 10 is a schematic diagram of the control principle of the present invention.
The labels in the figures are: 1-an insulation box, 2-a hot air cavity, 3-a flame guide pipe, 4-a smoke guide pipe, 5-a hot air pipe, 6-a flame guide pipe circulating air heating device, 7-a combustion chamber, 8-a combustion furnace, 9-a support, 10-a smoke outlet cavity, 11-a control box, 12-a feeding device, 13-a feeding hole, 14-a brightness sensor, 15-an ignition device, 16-a blower, 17-a proportional control valve, 18-a temperature sensor, 19-a flow sensor, 20-a hot air pipeline, 21-an exhaust fan, 22-a driving module, 23-a switch module, 24-a touch display screen, 25-a microprocessor, 26-a blower, 27-a bottom plate, 28-a top plate, 29-a side plate and 30-a partition plate I, 31-partition plate II, 32-air inlet pipe, 33-air inlet and 34-air outlet.
Detailed Description
The present invention is further described with reference to the following drawings and examples, which are not intended as a basis for limiting the invention, but rather as a basis for the structure or control method not specifically shown, which is conventional in the art.
Examples are given. A hot air generating device for a tea enzyme deactivating machine is shown in figures 1-9 and comprises an insulation can 1, wherein the left wall of the insulation can 1 is connected with a hot air pipe 5, the left lower part of the insulation can 1 is provided with a combustion furnace 8, the right lower part of the insulation can 1 is provided with a combustion chamber 7, a flame guide pipe circulating air heating device 6 is arranged above the combustion chamber 7, and the right wall of the insulation can 1 is connected with a fan 26; the flame guide pipe circulating air heating device 6 is connected with the hot air pipe 5 through the hot air cavity 2, and the flame guide pipe circulating air heating device 6 is connected with the fan 26 through the air inlet pipe 32. The heat preservation layers are arranged on the heat preservation box 1, the hot air cavity 2 and the like, and the heat preservation layers are used for reducing heat loss when the hot air box is used.
The use method and the working principle of the invention are as follows: when the tea leaf de-enzyming device is used, the hot air pipeline 20 is firstly connected with the tea leaf de-enzyming machine, after the fan 26 is manually started, the fan 26 blows air into the flame guide pipe circulating air heating device 6 through the air inlet pipe 32, the air flows in a path which is back and forth up and down in the flame guide pipe circulating air heating device 6, and then the air is blown out from the hot air pipe 5 after passing through the hot air cavity 2. The air is heated in the flowing process, the fuel put into the combustion furnace 8 and the combustion chamber 7 is combusted in the heating process, the heat generated after the fuel in the combustion furnace 8 and the combustion chamber 7 is combusted enters the pilot flame tube circulating air heating device 6, and the air blown into the pilot flame tube circulating air heating device 6 by the fan 26 is heated. The air flows in the flame guide pipe circulating air heating device 6 and is heated, the air is finally heated to obtain the superheated air, and the superheated air is blown out from the hot air pipe 5 and enters the tea leaf enzyme deactivating machine through the hot air pipeline 20 to be subjected to enzyme deactivating.
The flame guide pipe circulating air heating device 6 comprises a bottom plate 27 and a top plate 28, the front sides and the rear sides of the bottom plate 27 and the top plate 28 are respectively connected through side plates 29, the bottom plate 27 is connected with a group of first partition plates 30, a second partition plate 31 is arranged between every two adjacent first partition plates 30, and the second partition plate 31 is connected with the top plate 28; flame guide pipes 3 penetrate through the first partition plate 30 and the second partition plate 31; an air inlet 33 and an air outlet 34 are arranged on the top plate 28; the bottom plate 27 is connected with the combustion chamber 7; the air inlet 33 is connected with the air inlet pipe 32; the air outlet 34 is connected with the hot air cavity 2. Inevitably, air entering the flame guide tube circulating air heating device 6 from the air inlet 3 needs to be exhausted from the air outlet 34, so an air passage needs to be formed in the flame guide tube circulating air heating device 6, and gaps are formed between the upper end of the adjacent first partition plate 30 and the top plate 28 and between the lower end of the second partition plate 31 and the bottom plate 27 as the air passage. According to the arrangement of each plate in the flame guide pipe circulating air heating device 6, an air passage which is bent back and forth up and down is formed inside the flame guide pipe circulating air heating device 6, so that air blown in from the air inlet 33 through the air inlet pipe 32 can pass through the flame guide pipe 3 from top to bottom and then from bottom to top for multiple times in the flame guide pipe circulating air heating device 6 to be heated, and finally the air is blown out from the air outlet 34 to enter the hot air cavity 2. The direction and course of the air flow in the pilot burner circulating air heating means 6 is shown in fig. 4.
The flame guide pipe 3 is provided with 120 pieces and 126 pieces. The number of the flame guide pipes 3 is designed according to the length and the width of the flame guide pipes, the maximum accommodating capacity is only 126 flame guide pipes, and the design of the 126 flame guide pipes is beneficial to the effective heating of air.
The right side of the flame guide pipe 3 is provided with a smoke outlet cavity 10, the smoke outlet cavity 10 is connected with a smoke guide pipe 4, and the smoke guide pipe 4 is connected with an exhaust fan 21. According to the structure of the flame guide pipe circulating air heating device 6, heat generated after combustion of the combustion furnace 8 enters from the left ends of all flame guide pipes 3, then flows out from the right ends of the flame guide pipes 3, finally enters the smoke outlet cavity 10 and is discharged from the smoke guide pipe 4. Rapid evacuation of the smoke can be achieved after the blower 21 is activated.
According to the structure, the heating process of the combustion furnace 8 and the combustion chamber 7 to the pilot flame tube circulating air heating device 6 is as follows: the heat, flame and flue gas generated by the combustion of the fuel in the combustion furnace 8 enter from the left end of the flame guide tube 3, the flue gas will flow out from the right end of the flame guide tube 3 and pass through the smoke outlet chamber 10, and then the flue gas is discharged from the smoke guide tube 4, and the flow and removal process of the flue gas with the fire smoke generated by the combustion furnace 8 is shown in fig. 3. In the process, the heat generated by the combustion furnace 8 directly burns the flame guide pipe 3 red, the temperature of the flame guide pipe 3 reaches about 1000 ℃, when the air blown into the flame guide pipe circulating air heating device 6 by the fan 26 reciprocates up and down outside the flame guide pipe 3, the air is continuously transferred and heated by the flame guide pipe 3, meanwhile, the heat generated after the fuel is combusted in the combustion chamber 7 directly heats the air in the flame guide pipe circulating air heating device 6 through the bottom plate of the flame guide pipe circulating air heating device 6, the temperature of the air blown out from the air outlet 34 of the flame guide pipe circulating air heating device 6 after being heated reaches 600-700 ℃, although the air loses certain heat in the flow of the hot air cavity 2, the hot air pipe 5 and the hot air pipeline 20, and finally, the air flowing into the tea leaf enzyme deactivating machine from the hot air pipeline 20 is still overheated air with the temperature of 400-and 500 ℃. And it is preferable that the hot air chamber 2 is disposed above the combustion furnace 8, so that the combustion furnace 8 can also perform a heating effect on the hot air chamber 2 and the air in the hot air chamber 2.
The hot air pipe 5 is connected with a hot air pipeline 20, and a temperature sensor 18, a flow sensor 19 and a proportional control valve 17 are arranged on the hot air pipeline 20.
The top of the combustion furnace 8 and the top of the combustion chamber 7 are both provided with a feed inlet 13, a feeding device 12 is arranged above the feed inlet 13, and the feeding device 12 is provided with a temperature sensor 18, a brightness sensor 14 and an ignition device 15. The feeding device 12 is an automatic feeding machine, which is an existing device, and the automatic feeding machine mainly comprises a fuel hopper, a conveying screw, a motor, a conveying screw, a blower, a blast pipe, an ignition device, a control box, a sensor and the like. The working mode of the feeding device 12 is that biomass fuel is firstly added into a fuel hopper, when biomass needs to be ignited, a motor drives a conveying screw to convey a certain amount of biomass fuel, an ignition device is started to ignite the biomass fuel, a sensor senses whether the biomass fuel is ignited or not, an air blower is started after the biomass fuel is ignited, the biomass fuel is rapidly ignited, the motor of the conveying screw is controlled by a control box, timing feeding is carried out according to the combustion condition, the feeding amount is controlled, and therefore the biomass fuel is guaranteed to be fully combusted and utilized. In the present invention, fuel is fed into the combustion furnace 8 and the combustion chamber 7 through the feeding device 12 from the respective feed ports 13.
The top of the heat preservation box 1 is provided with an exhaust port 10, the exhaust port 10 is connected with a smoke guide pipe 4, and the smoke guide pipe 4 is connected with an exhaust fan 21.
The hot air pipe 5 is connected with a hot air pipeline 20, and a temperature sensor 18, a flow sensor 19 and a proportional control valve 17 are arranged on the hot air pipeline 20.
The top of the combustion furnace 8 is provided with a feed inlet 13, a feeding device 12 is arranged above the feed inlet 13, and the feeding device 12 is provided with a temperature sensor 18, a brightness sensor 14 and an ignition device 15.
The combustion furnace 8 is provided with an air supply outlet and an ash discharge outlet; the air supply outlet is connected with a blower 16. The blower 16 supplies air from the air supply port to assist combustion. The ash discharge port is used for discharging ash of fuel.
The heat preservation box 1 is provided with a control box 11, and a microprocessor 25, a touch display screen 24, a driving module 22 and a switch module 23 are arranged in the control box 11; the microprocessor 25 is connected with the touch display screen 24, the brightness sensor 14, the temperature sensor 18, the flow sensor 19, the driving module 22 and the switch module 23; the driving module 22 is connected with the feeding device 12 and the proportional control valve 17; the switch module 23 connects the ignition 15, the blower 16 and the suction fan 21.
All components used in this hot-blast generating device purchase on the market and directly use, and the preferred model of each component is: the preferred model of the brightness sensor 14 is EMC1001012, the preferred model of the ignition device 15 is a Baowei combustion-controlled ignition device, the preferred model of the proportional control valve 17 is RT4WRE (E), the preferred model of the temperature sensor 18 is WRNT-01, the preferred model of the flow sensor 19 is an integral vortex shedding flowmeter model DN25, the preferred model of the driving module 22 is an ULN2003 driving circuit, the preferred model of the switching module 23 is a relay switching circuit, the preferred model of the touch display screen 24 is an industrial touch display screen, and the preferred model of the microprocessor 25 is an STM series single chip microcomputer.
The control method of the hot air generating device of the tea green removing machine comprises the following steps:
a. the brightness sensor 14 detects the brightness of flame, when no flame is detected, a detection signal is sent to the microprocessor 25, the microprocessor 25 sends a signal to the switch module 23, and the switch module 23 turns on the ignition device 15 to ignite fuel; when the detected flame is lower than the preset value, a detection signal is sent to the microprocessor 25, the microprocessor 25 sends a signal to the driving module 22, and the driving module 22 starts the feeding device 12 to feed fuel;
b. the temperature sensor 18 detects the temperature of the hot air, when the detected temperature of the hot air is lower than a preset value, a detection signal is sent to the microprocessor 25, the microprocessor 25 sends a signal to the driving module 22, and the driving module 22 starts the feeding device 12 to feed the fuel; when the temperature of the hot air reaches a preset value, a detection signal is sent to the microprocessor 25, the microprocessor 25 sends a signal to the driving module 22, the driving module 22 closes the feeding device 12, and the feeding of the fuel is stopped;
c. the flow sensor 19 detects the output flow of the hot air, when the output flow of the hot air in the hot air pipeline 20 is lower than a preset value, a detection signal is sent to the microprocessor 25, the microprocessor 25 sends a signal to the driving module 22, and the driving module 22 starts the proportional control valve 17 to increase the output flow of the hot air; when the output flow of the hot air in the hot air pipeline 20 reaches the preset value, the detection signal is sent to the microprocessor 25, the microprocessor 25 sends a signal to the driving module 22, and the driving module 22 stops the proportional control valve 17 to keep the output flow of the hot air.
d. The hot air temperature value, the hot air flow value and the flame brightness are displayed on the touch display screen 24, switches of the ignition device 15, the blower 16, the exhaust fan 21 and the fan 26 are displayed, and manual touch screen operation can be achieved on the touch display screen 24.
Claims (8)
1. The utility model provides a hot-blast generating device for tea wrap machine which characterized in that: the device comprises an insulation can (1), wherein the left wall of the insulation can (1) is connected with a hot air pipe (5), a combustion furnace (8) is arranged at the lower part of the left side of the insulation can (1), a combustion chamber (7) is arranged at the lower part of the right side of the insulation can (1), a flame guide pipe circulating air heating device (6) is arranged above the combustion chamber (7), and the right wall of the insulation can (1) is connected with a fan (26); the flame guide pipe circulating air heating device (6) is connected with the hot air pipe (5) through the hot air cavity (2), and the flame guide pipe circulating air heating device (6) is connected with the fan (26) through the air inlet pipe (32).
2. The hot wind generating device for the tea wrap machine according to claim 1, characterized in that: the flame guide pipe circulating air heating device (6) comprises a bottom plate (27) and a top plate (28), the front side and the rear side of the bottom plate (27) and the front side and the rear side of the top plate (28) are respectively connected through side plates (29), the bottom plate (27) is connected with a group of first partition plates (30), a second partition plate (31) is arranged between every two adjacent first partition plates (30), and the second partition plate (31) is connected with the top plate (28); flame guide pipes (3) penetrate through the first partition plate (30) and the second partition plate (31); an air inlet (33) and an air outlet (34) are arranged on the top plate (28); the bottom plate (27) is connected with the combustion chamber (7); the air inlet (33) is connected with an air inlet pipe (32); the air outlet (34) is connected with the hot air cavity (2).
3. The hot wind generating device for the tea wrap machine according to claim 2, characterized in that: a smoke outlet cavity (10) is arranged beside the right end of the flame guide pipe (3), the smoke outlet cavity (10) is connected with a smoke guide pipe (4), and the smoke guide pipe (4) is connected with an exhaust fan (21).
4. The hot air generating device for the tea wrap machine according to claim 3, characterized in that: the hot air pipe (5) is connected with a hot air pipeline (20), and a temperature sensor (18), a flow sensor (19) and a proportional control valve (17) are arranged on the hot air pipeline (20).
5. The hot air generating device for the tea wrap machine according to claim 4, characterized in that: the top of the combustion furnace (8) and the top of the combustion chamber (7) are both provided with a feed inlet (13), a feeding device (12) is arranged above the feed inlet (13), and the feeding device (12) is provided with a temperature sensor (18), a brightness sensor (14) and an ignition device (15).
6. The hot air generating device for the tea wrap machine according to claim 5, characterized in that: the combustion furnace (8) is provided with an air supply outlet and an ash discharge outlet; the air supply outlet is connected with a blower (16).
7. The hot air generating device for the tea wrap machine according to claim 6, characterized in that: the heat preservation box (1) is provided with a control box (11), and a microprocessor (25), a touch display screen (24), a driving module (22) and a switch module (23) are arranged in the control box (11); the microprocessor (25) is connected with the touch display screen (24), the brightness sensor (14), the temperature sensor (18), the flow sensor (19), the driving module (22) and the switch module (23); the driving module (22) is connected with the feeding device (12) and the proportional control valve (17); the switch module (23) is connected with the ignition device (15), the blower (16) and the exhaust fan (21).
8. A control method of the hot air generating device of the tea wrap machine according to claim 7, characterized in that: the method comprises the following steps:
a. the brightness sensor (14) detects the brightness of flame, when no flame is detected, a detection signal is sent to the microprocessor (25), the microprocessor (25) sends a signal to the switch module (23), and the switch module (23) turns on the ignition device (15) to ignite fuel; when the detected flame is lower than the preset value, a detection signal is sent to the microprocessor (25), the microprocessor (25) sends a signal to the driving module (22), and the driving module (22) starts the feeding device (12) to feed fuel;
b. the temperature sensor (18) detects the temperature of hot air, when the detected temperature of the hot air is lower than a preset value, a detection signal is sent to the microprocessor (25), the microprocessor (25) sends a signal to the driving module (22), and the driving module (22) starts the feeding device (12) to feed fuel; when the temperature of the hot air reaches a preset value, a detection signal is sent to the microprocessor (25), the microprocessor (25) sends a signal to the driving module (22), and the driving module (22) closes the feeding device (12) and stops feeding the fuel;
c. the flow sensor (19) detects the output flow of hot air, when the output flow of the hot air in the hot air pipeline (20) is lower than a preset value, a detection signal is sent to the microprocessor (25), the microprocessor (25) sends a signal to the driving module (22), and the driving module (22) starts the proportional control valve (17) to increase the output flow of the hot air; when the output flow of the hot air in the hot air pipeline (20) reaches a preset value, a detection signal is sent to the microprocessor (25), the microprocessor (25) sends a signal to the driving module (22), and the driving module (22) stops the proportional control valve (17) to keep the output flow of the hot air;
d. the hot air temperature value, the hot air flow value and the flame brightness are displayed on the touch display screen (24), switches of the ignition device (15), the air blower (16), the exhaust fan (21) and the fan (26) are displayed, and manual touch screen operation can be achieved on the touch display screen (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547526.7A CN111587934A (en) | 2020-06-16 | 2020-06-16 | Hot air generating device for tea leaf fixation machine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547526.7A CN111587934A (en) | 2020-06-16 | 2020-06-16 | Hot air generating device for tea leaf fixation machine and control method thereof |
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| CN111587934A true CN111587934A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010547526.7A Pending CN111587934A (en) | 2020-06-16 | 2020-06-16 | Hot air generating device for tea leaf fixation machine and control method thereof |
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| CN214015792U (en) * | 2020-06-16 | 2021-08-24 | 遵义市贵福春自动化科技有限公司 | Hot air generating device for tea leaf fixation machine |
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