CN109330011B - Heat exchange device for flue-cured tobacco heat pump curing barn - Google Patents
Heat exchange device for flue-cured tobacco heat pump curing barn Download PDFInfo
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- CN109330011B CN109330011B CN201811445631.9A CN201811445631A CN109330011B CN 109330011 B CN109330011 B CN 109330011B CN 201811445631 A CN201811445631 A CN 201811445631A CN 109330011 B CN109330011 B CN 109330011B
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- heat
- flue
- heating
- curing barn
- cured tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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Abstract
The invention discloses a heat exchange device for a flue-cured tobacco heat pump curing barn, which comprises two hexagonal shells arranged in parallel, a guide plate, a pre-cooling heat pipe heat exchanger, a pre-heating heat pipe heat exchanger, a heat insulation block, a movable base guide rail and a heating block. The invention is used by matching with the heat pump unit of the flue-cured tobacco curing barn, can start the preheating and/or precooling function according to the requirement in the production process, can also close the preheating and precooling function at the same time, has flexible operation and has the advantages of energy saving and consumption reduction; the invention also has the advantages of simple structure and convenient maintenance.
Description
Technical Field
The invention belongs to the technical field of flue-cured tobacco baking equipment, and particularly relates to a heat exchange device for a flue-cured tobacco heat pump baking room.
Background
With the rapid development of the tobacco industry, the standard of the tobacco leaf demand is higher and higher, the production of high-quality tobacco leaves is the main direction of the future development, and the science and technology cigarette has become the main melody of the development of the traditional agriculture to the modern tobacco leaves. The tobacco curing barn is matched by an advanced scientific technology, the internal quality and the external quality of tobacco leaves are continuously improved, the labor intensity and the production cost are reduced, the economic benefit is increased, and the tobacco curing barn becomes a necessary means for tobacco to mainly compete for the market at the present stage. In four links of tobacco seedling raising, planting, picking and baking, the baking is a link with the least controllable quality, the highest risk and the largest loss of the flue-cured tobacco. The tobacco leaf baking is an essential key link in the production of flue-cured tobacco, is also the weakest link in the production of the tobacco leaves at present, solves the problem of baking and modulating the tobacco leaves, namely maintains the enthusiasm of farmers for growing the tobacco and solves the problem of stable tobacco production.
At present, the heat supply of the domestic bulk curing barn is mainly coal burning, and the quality of cured tobacco leaves is influenced due to unstable combustion and uneven temperature rise, so that fuel waste is caused due to over-high ineffective energy consumption, and a large amount of pollutants such as harmful gas, particles and the like are discharged to cause environmental damage and other various problems which cannot be ignored. Aiming at the defects, heating modes such as a biomass particle fuel burner, electromagnetic heating, resistance heating, infrared heating, heat pump heating and the like appear, and a series of new problems are brought although some problems existing in coal-fired heating can be avoided. For example, air source heat pump heating is often poor in dehumidification capability and large in energy consumption for high-temperature and high-humidity environmental conditions in a tobacco leaf curing barn. Therefore, it is necessary to develop a heat exchange device for a flue-cured tobacco heat pump curing barn, which can solve the above problems.
Disclosure of Invention
The invention aims to provide a heat exchange device for a flue-cured tobacco heat pump curing barn.
The invention aims to realize the purpose, the heat exchanger comprises two hexagonal shells which are arranged in parallel, a guide plate, a pre-cooling heat pipe heat exchanger, a pre-heating heat pipe heat exchanger, a heat insulation block, a movable base guide rail and a heating block, wherein the plurality of guide plates are sequentially arranged in the hexagonal shells at equal intervals from top to bottom, the adjacent guide plates are arranged in a staggered manner, the guide plates divide the hexagonal shells into serpentine airflow channels, the tops and the bottoms of the hexagonal shells are respectively provided with an air port, the serpentine airflow channel of one hexagonal shell is a pre-cooling channel, the serpentine airflow channel of the other hexagonal shell is a pre-heating channel, the airflow flows through the pre-cooling channel of the hexagonal shell and then passes through the pre-heating channel of the hexagonal shell, the pre-cooling heat pipe heat exchanger is in a horizontal shape, an evaporation section is, The condensation section passes roast room, is located outside roast room, preheat the heat pipe exchanger and be the level form, and the condensation section is located and is preheated in the passageway, adiabatic section, evaporation zone pass roast room, are located outside roast room, the heat insulating block set up with precooling heat pipe exchanger relatively, and the one side that the heat insulating block is relative with precooling heat pipe exchanger is equipped with the thermal-insulated hole with precooling heat pipe exchanger one-to-one, the removal base locate the heat insulating block bottom, the removal base guide rail locate and remove the base bottom, and remove base and removal base guide rail sliding fit, the one side that the heat block is relative with preheating heat pipe exchanger be equipped with and preheat the heating hole of heat pipe exchanger one-to-one, and preheat heat pipe exchanger's evaporation section and locate in the heating hole.
Compared with the prior art, the invention has the following technical effects:
1. the heat pump unit evaporator is formed by two hexagonal shells in parallel, wherein one hexagonal shell plays a role in precooling airflow under the action of the precooling heat pipe heat exchanger, so that the dehumidification effect of the heat pump unit evaporator is effectively improved, and the heat pump unit evaporator is particularly suitable for the condition of high humidity of a baking room and can quickly dehumidify; moreover, when the humidity and the temperature of the curing barn reach the conditions required by curing, the heat exchange function of the pre-cooling heat pipe heat exchanger can be closed by moving the heat insulation block, and the pre-cooling is stopped, so that the curing barn has the advantage of convenient operation; after passing through the precooling channel, the airflow enters the preheating channel of the other hexagonal shell, so that the airflow is preheated under the action of the preheating heat pipe exchanger, the heating effect of a condenser of the heat pump unit is assisted, the load of the heat pump unit is reduced, and meanwhile, the auxiliary preheating can be adjusted at any time according to the running condition of the heat pump unit, so that different baking requirements are met;
2. the invention is used by matching with the heat pump unit of the flue-cured tobacco curing barn, can start the preheating and/or precooling function according to the requirement in the production process, can also close the preheating and precooling function at the same time, has flexible operation and has the advantages of energy saving and consumption reduction; the invention also has the advantages of simple structure and convenient maintenance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of a hexagonal housing;
in the figure: the method comprises the following steps of 1-a hexagonal shell, 2-a guide plate, 3-a pre-cooling heat pipe heat exchanger, 4-a pre-heating heat pipe heat exchanger, 5-a heat insulation block, 6-a movable base, 7-a movable base guide rail, 8-a heating block, 9-an air port, 10-a baking room and 11-a horizontal driving cylinder.
Detailed Description
The invention is further described with reference to the accompanying drawings, but the invention is not limited in any way, and any alterations or substitutions based on the teaching of the invention are within the scope of the invention.
As shown in attached figures 1-2, the invention comprises two hexagonal shells 1 arranged in parallel, a guide plate 2, a pre-cooling heat pipe exchanger 3, a pre-heating heat pipe exchanger 4, a heat insulation block 5, a movable base 6, a movable base guide rail 7 and a heating block 8, wherein a plurality of guide plates 2 are sequentially arranged in the hexagonal shells 1 at equal intervals from top to bottom, the adjacent guide plates 2 are arranged in a staggered manner, the guide plates 2 divide the hexagonal shells 1 into serpentine airflow channels, the top and the bottom of each hexagonal shell 1 are respectively provided with an air port 9, the serpentine airflow channel of one hexagonal shell 1 is a pre-cooling channel, the serpentine airflow channel of the other hexagonal shell 1 is a pre-heating channel, the airflow direction firstly passes through the pre-cooling channel of the hexagonal shell 1 and then passes through the pre-heating channel of the hexagonal shell 1, and the pre-cooling heat pipe exchanger 3 is horizontal, the evaporation section is arranged in the precooling channel, the heat insulation section and the condensation section pass through the curing barn 10 and are positioned outside the curing barn 10, the preheating heat pipe heat exchanger 4 is horizontal, the condensation section is arranged in the preheating channel, the heat insulation section and the evaporation section pass through the baking room 10 and are positioned outside the baking room 10, the heat insulation block 5 is arranged opposite to the pre-cooling heat pipe heat exchanger 3, and the surface of the heat insulation block 5 opposite to the pre-cooling heat pipe exchanger 3 is provided with heat insulation holes which are in one-to-one correspondence with the pre-cooling heat pipe exchanger 3, the movable base 6 is arranged at the bottom of the heat insulation block 5, the movable base guide rail 7 is arranged at the bottom of the movable base 6, and the movable base 6 is in sliding fit with the movable base guide rail 7, one side of the heating block 8 opposite to the preheating heat pipe exchanger 4 is provided with heating holes corresponding to the preheating heat pipe exchanger 4 one by one, and the evaporation section of the preheating heat pipe exchanger 4 is arranged in the heating holes.
Preferably, an evaporator of the heat pump unit is arranged below the hexagonal shell 1.
Preferably, a horizontal driving cylinder 11 is arranged on the side surface of the heat insulation block 5.
Preferably, the heating block 8 is made of a heat insulating material, and an electric heating element is arranged in the heating hole.
Preferably, the heating block 8 is made of heat-insulating materials, the inner wall of the heating hole is provided with a heat exchange tube, and the heat exchange tube is connected with a flue gas pipe of the biomass burner to form a closed loop.
Preferably, the pre-cooling heat pipe heat exchanger 3 is provided with a pre-cooling working medium.
Preferably, the preheating heat pipe exchanger 4 is provided with a preheating working medium.
Preferably, the air port 9 of the preheating channel for outlet is provided with a fan.
Preferably, the device further comprises a controller and a control panel, wherein the controller is arranged outside the curing barn 10 and is respectively and electrically connected with the horizontal driving cylinder 11, the electric heating element, the fan and the control panel, and the control panel is provided with buttons for starting or stopping the horizontal driving cylinder 11, the electric heating element, the biomass burner and the fan.
Preferably, the controller is a PLC controller.
The working principle and the working process of the invention are as follows: moist air exhausted from a baking chamber of the baking room enters a precooling channel through an air port 9 at the top of a hexagonal shell 1, a precooling working medium at an evaporation section of a precooling heat pipe heat exchanger 3 absorbs heat and evaporates to generate steam in the process that airflow with higher temperature passes through the precooling channel, the steam flows to a condensation section under the action of pressure difference in a pipe, and the condensation section is positioned outside the baking room 10, namely the steam is condensed into liquid and simultaneously emits heat, and the precooling working medium liquid flows back to the evaporation section again to be evaporated again, so that the operation is repeated, and the effect of precooling the moist air is achieved; the precooled wet air is discharged from an air port 9 at the bottom of the hexagonal shell 1 and passes through an evaporator of the heat pump unit, and the wet air is condensed on the surface of the evaporator to form liquid drops, namely, the wet air is dehumidified; the dehumidified air enters the preheating channel from an air port 9 at the bottom of the other hexagonal shell 1, the air flow with lower temperature passes through the preheating channel, the preheating working medium at the evaporation section of the preheating heat pipe exchanger 4 absorbs heat and evaporates to generate steam under the action of the heating block 8, the steam flows to the condensation section under the action of the pressure difference in the pipe, the condensation section heats the air flow in the preheating channel, the steam is condensed into liquid, the preheating working medium liquid flows back to the evaporation section again to be evaporated, and the operation is repeated in such a way, so that the effect of preheating the air is achieved; the preheated air is discharged from an air port 9 at the top of the hexagonal shell 1; reaching a condenser of a heat pump unit, namely heating the airflow to meet the baking requirement;
when the humidity of the curing barn meets the curing requirement and the dehumidification is not needed, the horizontal driving cylinder 11 is started, the movable base 6 drives the heat insulation block 5 to move towards the pre-cooling heat pipe heat exchanger 3, so that the heat insulation section and the condensation section of the pre-cooling heat tank heat exchanger 3 are sleeved in the heat insulation holes;
when the preheating of the air flow is not required, the heating is stopped by stopping the heating block 5.
Claims (10)
1. A heat exchange device for a flue-cured tobacco heat pump curing barn is characterized by comprising two hexagonal shells (1) arranged in parallel, a guide plate (2), a pre-cooling heat pipe heat exchanger (3), a pre-heating heat pipe heat exchanger (4), a heat insulation block (5), a movable base (6), a movable base guide rail (7) and a heating block (8), wherein the hexagonal shells (1) are internally provided with a plurality of guide plates (2) at equal intervals in sequence from top to bottom, adjacent guide plates (2) are arranged in a staggered manner, the hexagonal shells (1) are divided into snake-shaped airflow channels by the guide plates (2), the tops and the bottoms of the hexagonal shells (1) are respectively provided with an air port (9), the snake-shaped airflow channel of one hexagonal shell (1) is a pre-cooling channel, the snake-shaped airflow channel of the other hexagonal shell (1) is a pre-heating channel, and the airflow flows through the pre-cooling channel of, then passes through a preheating channel of the hexagonal shell (1), the pre-cooling heat pipe heat exchanger (3) is horizontal, the evaporation section is arranged in the pre-cooling channel, the heat insulation section and the condensation section pass through the baking room (10) and are positioned outside the baking room (10), the pre-heating heat pipe heat exchanger (4) is horizontal, the condensation section is arranged in the preheating channel, the heat insulation section and the evaporation section pass through the baking room (10) and are positioned outside the baking room (10), the heat insulation block (5) and the pre-cooling heat pipe heat exchanger (3) are oppositely arranged, heat insulation holes corresponding to the pre-cooling heat pipe heat exchanger (3) one by one are arranged on the surface of the heat insulation block (5) opposite to the pre-cooling heat pipe heat exchanger (3), the movable base (6) is arranged at the bottom of the heat insulation block (5), the movable base guide rail (7) is arranged at the bottom of the movable base (6), and the movable base (6) is in sliding fit with the movable base, one side of the heating block (8) opposite to the preheating heat pipe exchanger (4) is provided with heating holes corresponding to the preheating heat pipe exchanger (4) one by one, and the evaporation section of the preheating heat pipe exchanger (4) is arranged in the heating holes.
2. The heat exchange device for a flue-cured tobacco heat pump curing barn according to claim 1, wherein an evaporator of a heat pump unit is arranged below the hexagonal shell (1).
3. The heat exchange device for a flue-cured tobacco heat pump curing barn according to claim 1, wherein a horizontal driving cylinder (11) is arranged on the side surface of the heat insulation block (5).
4. The heat exchange device for a flue-cured tobacco heat pump curing barn according to claim 1, wherein the heating block (8) is made of heat-insulating materials, and an electric heating element is arranged in the heating hole.
5. The heat exchange device for the flue-cured tobacco heat pump curing barn according to claim 1, wherein the heating block (8) is made of heat-insulating materials, the inner wall of the heating hole is provided with a heat exchange pipe, and the heat exchange pipe is connected with a flue gas pipe of a biomass burner to form a closed loop.
6. The heat exchange device for the flue-cured tobacco heat pump curing barn according to claim 1, wherein the pre-cooling heat pipe heat exchanger (3) is provided with a pre-cooling working medium.
7. The heat exchange device for a flue-cured tobacco heat pump curing barn according to claim 1, wherein the preheating heat pipe exchanger (4) is provided with a preheating working medium.
8. A heat exchanger for a flue-cured tobacco heat pump curing barn according to claim 1, wherein the air port (9) is provided with a fan.
9. The heat exchange device for a flue-cured tobacco heat pump curing barn according to claim 1, further comprising a controller and a control panel arranged outside the curing barn (10).
10. The heat exchange device for a flue-cured tobacco heat pump curing barn according to claim 9, wherein the controller is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445631.9A CN109330011B (en) | 2018-11-29 | 2018-11-29 | Heat exchange device for flue-cured tobacco heat pump curing barn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811445631.9A CN109330011B (en) | 2018-11-29 | 2018-11-29 | Heat exchange device for flue-cured tobacco heat pump curing barn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109330011A CN109330011A (en) | 2019-02-15 |
| CN109330011B true CN109330011B (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811445631.9A Active CN109330011B (en) | 2018-11-29 | 2018-11-29 | Heat exchange device for flue-cured tobacco heat pump curing barn |
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| Country | Link |
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| CN (1) | CN109330011B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0951790A (en) * | 1995-08-11 | 1997-02-25 | Kanto Noki Kk | Automatically controlled integrated drier for leaf tobacco of local variety and burley variety |
| CN103110173A (en) * | 2013-03-06 | 2013-05-22 | 东莞市正旭新能源设备科技有限公司 | Multipurpose heat pump flue-curing barn for dehumidifying and heat recovery of flue-cured tobacco |
| CN206453223U (en) * | 2016-12-22 | 2017-09-01 | 云南省烟草公司昆明市公司 | A kind of dehydrating unit of air-cooled bulk curing barn |
| CN108477660A (en) * | 2018-05-18 | 2018-09-04 | 云南省烟草农业科学研究院 | A kind of double dynamical tobacco baking room of intelligence |
| CN108477659A (en) * | 2018-03-12 | 2018-09-04 | 湖南科技大学 | The interior circulation condensed roasting room of multi-energy complementation |
| CN207885643U (en) * | 2017-12-23 | 2018-09-21 | 云南乾程科技开发有限公司 | A kind of thermal energy complete utilization tobacco curing barn |
-
2018
- 2018-11-29 CN CN201811445631.9A patent/CN109330011B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0951790A (en) * | 1995-08-11 | 1997-02-25 | Kanto Noki Kk | Automatically controlled integrated drier for leaf tobacco of local variety and burley variety |
| CN103110173A (en) * | 2013-03-06 | 2013-05-22 | 东莞市正旭新能源设备科技有限公司 | Multipurpose heat pump flue-curing barn for dehumidifying and heat recovery of flue-cured tobacco |
| CN206453223U (en) * | 2016-12-22 | 2017-09-01 | 云南省烟草公司昆明市公司 | A kind of dehydrating unit of air-cooled bulk curing barn |
| CN207885643U (en) * | 2017-12-23 | 2018-09-21 | 云南乾程科技开发有限公司 | A kind of thermal energy complete utilization tobacco curing barn |
| CN108477659A (en) * | 2018-03-12 | 2018-09-04 | 湖南科技大学 | The interior circulation condensed roasting room of multi-energy complementation |
| CN108477660A (en) * | 2018-05-18 | 2018-09-04 | 云南省烟草农业科学研究院 | A kind of double dynamical tobacco baking room of intelligence |
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| CN109330011A (en) | 2019-02-15 |
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