CN218155372U - Internal air draft type heat recovery grain dryer - Google Patents
Internal air draft type heat recovery grain dryer Download PDFInfo
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- CN218155372U CN218155372U CN202221692053.0U CN202221692053U CN218155372U CN 218155372 U CN218155372 U CN 218155372U CN 202221692053 U CN202221692053 U CN 202221692053U CN 218155372 U CN218155372 U CN 218155372U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model discloses an internal air draft type heat recovery grain dryer, which comprises a drying tower, a heat exchange device, a centrifugal fan and an electric cabinet, wherein the air inlet side and the air outlet side of the drying tower are respectively communicated with a heating tower and a dehumidifying tower; the dehumidification tower is communicated with an air inlet of the centrifugal fan, an air outlet of the centrifugal fan is communicated with an air return pipe, and the air return pipe is communicated with the heating tower; the dehumidification tower is internally provided with a condenser, the heating tower is internally provided with a radiator, and the condenser and the radiator can be connected to the heat exchange device in a heat conduction mode. The utility model discloses a set up heat transfer device, condenser and radiator for air heat in the drying-machine can be retrieved and recycled, and then can realize the effect that reduces the energy consumption, comparatively environmental protection.
Description
Technical Field
The utility model relates to a grain drying-machine technical field especially relates to an interior convulsions formula heat recovery grain drying-machine.
Background
The grain dryer is used for drying grain before warehousing so as to reduce the water content of the grain; a common grain dryer is characterized in that conveying equipment is used for conveying grains to be dried into a drying tower, the grains are uniformly dispersed, heated hot air is blown into the drying tower by using blowing equipment, moisture in the grains is evaporated by using the hot air, the evaporated moisture is discharged out of the drying tower along with the hot air, and then the grains are dried; the air may be heated by combustion of a fuel such as coal or natural gas, or by an electric heating device.
The wet and hot air of the existing grain dryer is directly discharged out of the drying tower after passing through the drying tower, and a structure capable of realizing hot air recycling is not provided, so that the heat of the hot air can not be recovered, and the energy consumption during working is large, and the drying tower is not environment-friendly enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an internal air draft type heat recovery grain dryer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an internal draft type heat recovery grain dryer comprises a drying tower, a heat exchange device, a centrifugal fan and an electric cabinet, wherein the air inlet side and the air outlet side of the drying tower are respectively communicated with a heating tower and a dehumidifying tower;
the dehumidification tower is communicated with an air inlet of the centrifugal fan, an air outlet of the centrifugal fan is communicated with an air return pipe, and the air return pipe is communicated with the heating tower;
the dehumidification tower is internally provided with a condenser, the heating tower is internally provided with a radiator, and the condenser and the radiator can be connected to the heat exchange device in a heat conduction mode.
As the utility model discloses further scheme again: the drying tower is the box structure, the top integrated into one piece of drying tower have the feeder hopper the inside integrated into one piece of drying tower has a plurality of swash plates, the bottom of drying tower is provided with the conveyer belt.
As a further aspect of the present invention: the air inlet side and the air outlet side of the drying tower are both communicated with ventilation pipes, and the ventilation pipes are located between the two adjacent inclined plates.
As the utility model discloses further scheme again: the heating tower and the dehumidifying tower are communicated with the drying tower through ventilation pipes, and temperature sensors are arranged on the ventilation pipes between the drying tower and the heating tower.
As a further aspect of the present invention: the condenser and the radiator are both of a multilayer grid plate structure, copper pipes penetrate through the grid plates, the copper pipes are communicated with the heat exchange tubes, and the condenser and the radiator are communicated with the heat exchange device through the heat exchange tubes.
As the utility model discloses further scheme again: the conveyer belt still includes the motor, the output shaft of motor is fixed in on the drive roll of conveyer belt.
As the utility model discloses further scheme again: the air return pipe is provided with an electric heating device, and the electric heating device, the centrifugal fan, the temperature sensor, the motor and the heat exchange device are electrically connected to a control circuit in the electric cabinet.
As a further aspect of the present invention: the bottom of the dehumidification tower is provided with a water outlet in an integrated forming mode.
The utility model has the advantages that:
1. the utility model discloses a set up heat transfer device, condenser and radiator for air heat in the drying-machine can be retrieved and recycled, and then can realize reducing the effect of energy consumption, comparatively environmental protection.
2. The utility model discloses a set up centrifugal fan and return air duct for the hot-air circulates in the organism, and then can reduce the loss of air heat, thereby has energy saving and consumption reduction's effect.
3. The utility model discloses a set up the moisture in the damp and hot air that condensation dehydrating unit makeed to carry out after the stoving work and can be got rid of, and then can realize the cyclic utilization of hot-air, and then can reduce the required energy consumption of heating.
Drawings
Fig. 1 is a schematic view of the front side structure of an internal draft heat recovery grain dryer provided by the present invention;
fig. 2 is a schematic diagram of a rear side structure of an internal draft heat recovery grain dryer provided by the present invention;
fig. 3 is a schematic view of the internal structure of an internal draft heat recovery grain dryer provided by the present invention;
fig. 4 is an enlarged view of a portion a in fig. 3.
In the figure: 1-centrifugal fan, 2-dehumidification tower, 3-feed hopper, 4-drying tower, 5-ventilation pipe, 6-heating tower, 7-return air pipe, 8-conveyer belt, 9-temperature sensor, 10-motor, 11-water outlet, 12-electric cabinet, 13-heat exchange pipe, 14-electric heating device, 15-heat exchange device, 16-condenser, 17-inclined plate and 18-radiator.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
An internal draft type heat recovery grain dryer is shown in figures 1-4 and comprises a drying tower 4, a heat exchange device 15, a centrifugal fan 1 and an electric cabinet 12;
in order to realize the recycling of the heat of the hot air; the air inlet side and the air outlet side of the drying tower 4 are respectively communicated with a heating tower 6 and a dehumidifying tower 2; the dehumidification tower 2 is communicated with an air inlet of the centrifugal fan 1, an air outlet of the centrifugal fan 1 is communicated with an air return pipe 7, and the air return pipe 7 is communicated with the heating tower 6; the dehumidifying tower 2 is provided with a condenser 16, the heating tower 6 is provided with a radiator 18, and the condenser 16 and the radiator 18 are thermally conductively connected to the heat exchanging device 15.
By arranging the centrifugal fan 1, the return air duct 7, the dehumidification tower 2 and the heating tower 6, when hot air for drying passes through the dehumidification tower 2, moisture in the hot humid air can be removed through the condensation effect of the condenser 16, the air after dehumidification is pumped out by the centrifugal fan 1 and is sent to the heating tower 6 through the return air duct 7, and the air after dehumidification enters the drying tower 4 again after being heated by the radiator 18;
the heat of the damp and hot air after passing through the condenser 16 is absorbed by the condenser 16 and transferred to the radiator 18 through the heat exchange device 15, so that the temperature of the radiator 18 is increased, the damp and hot air is further used for heating the dehumidified air, and the working principle of the damp and hot air is similar to that of an air conditioner; the heat exchange device 15 is equivalent to an air conditioner compressor and a heat exchange pipeline thereof, the condenser 16 is equivalent to a refrigerating device of an air conditioner internal unit, and the radiator 18 is equivalent to a radiating device of an air conditioner external unit; therefore, the heat recycling of the hot air for drying can be realized, and the energy consumption required by heating the air can be reduced, so that the purpose of environmental protection is achieved.
In order to realize that the grains are input into the drying tower 4 and dispersed in the drying tower as much as possible, and are discharged after being dehumidified; drying tower 4 is the box structure, drying tower 4's top integrated into one piece have feeder hopper 3 drying tower 4 inside integrated into one piece has a plurality of swash plates 17, drying tower 4's bottom is provided with conveyer belt 8, conveyer belt 8 still includes motor 10, motor 10's output shaft is fixed in on conveyer belt 8's the drive roll.
By arranging the inclined plate 17, grains entering the drying tower 4 can slide along the inclined plate 17 under the action of gravity for many times, then fall onto the inclined plate 17 on the next layer, and can be uniformly dispersed in the falling process; the grains finally fall on the conveyor belt 8 at the bottom of the drying tower 4 and are output from the drying tower 4 along with the operation of the conveyor belt 8.
In order to make the hot air fully contact with the grains; the air inlet side and the air outlet side of the drying tower 4 are both communicated with ventilation pipes 5, the ventilation pipes 5 are located between the two adjacent inclined plates 17, and the heating tower 6 and the dehumidifying tower 2 are communicated with the drying tower 4 through the ventilation pipes 5.
Through setting up the ventilation pipe 5 that is located between the adjacent swash plate 17 from top to bottom for the direction that the hot-air flows is just to the grain that disperses when moving from top to bottom, thereby can make grain and hot-air contact more fully, and then can obtain better dehumidification effect.
In order to increase the heat exchange rate of the air with the condenser 16 and the radiator 18, dehumidification and heat recycling are realized; the condenser 16 and the radiator 18 are both of a multilayer grid plate-shaped structure, copper pipes penetrate through the grid plates, the copper pipes are communicated with the heat exchange pipes 13, and refrigerants are communicated in the copper pipes and the heat exchange pipes 13; the condenser 16 and the radiator 18 are communicated with the heat exchange device 15 through a heat exchange pipe 13, and a water discharge port 11 is integrally formed at the bottom of the dehumidification tower 2.
By arranging the condenser 16 and the water outlet 11, the moisture in the hot and humid air meets the condensation on the condenser 16, drops on the bottom of the dehumidification tower 2 under the action of gravity and is discharged through the water outlet 11; the heat of the damp and hot air is absorbed by the refrigerant when passing through the condenser 16 by arranging the heat exchange tube 13 and the heat exchange device 15, then the absorbed heat is transferred to the radiator 18 through the heat exchange device 15 and the heat exchange tube 13, and the dehumidified air absorbs the heat when passing through the radiator 18, is heated and then enters the drying tower 4 again; therefore, the heat of the air for drying is recycled, and the purposes of energy conservation and emission reduction are achieved.
In order to realize the preheating of air and timely heat the air when the heat of the air for drying is insufficient; an electric heating device 14 is arranged on the air return pipe 7, and a temperature sensor 9 is arranged on the ventilation pipe 5 between the drying tower 4 and the heating tower 6; the electric heating device 14, the centrifugal fan 1, the temperature sensor 9, the motor 10 and the heat exchange device 15 are electrically connected to a control circuit in the electric cabinet 12.
Through setting up temperature sensor 9 and electric heater unit 14, can directly heat the air in the return air pipe 7 of will flowing through when the drying apparatus starts for the first time, can stop electric heater unit 14's work when electric cabinet 12 detects the air temperature of drying tower 4 air inlet side through temperature sensor 9 and is enough to satisfy the stoving demand, can pneumatic electric heater unit 14 heat the air that flows through in the return air pipe 7 when detecting the temperature of drying tower 4 air inlet side can not satisfy the stoving demand.
The working principle is as follows: this embodiment is when using, give the device switch on earlier, starting drive, centrifugal fan 1 and electric heat device can be pneumatic immediately, when temperature sensor 9 detected the air inlet side temperature and satisfied the stoving demand, control circuit in electric cabinet 12 can cut off the power supply to electric heat device 14 to indicate "preheating and accomplish" on the screen on electric cabinet 12, operating personnel accessible grain hoisting device will treat that the grain of drying sends into feeder hopper 3 and pneumatic motor 10 this moment, makes conveyer belt 8 begin to operate.
Grains to be dried fall on the top-most inclined plate 17 through the feed hopper 3 and slide along the top-most inclined plate 17 under the action of self gravity, then fall onto the next-layer inclined plate 17 from the tail end of the top-most inclined plate 17, in the falling process, hot air on the air inlet side of the drying tower 4 passes through gaps among the falling grains, takes away moisture in the grains, enters the dehumidification tower 2 through the air outlet side of the drying tower 4, and when the hot air on the air outlet side passes through the condenser 16, the moisture in the hot air can be condensed into water drops on the surface of a grid plate of the condenser 16, and the water drops slide to the bottom of the dehumidification tower under the action of gravity and are discharged through the water outlet 11;
meanwhile, when hot air with moisture passes through the condenser 16, the heat of the hot air is absorbed by a refrigerant in the condenser 16, then the absorbed heat is transferred to the radiator 18 through the heat exchange device 15 and the heat exchange tube 13, the dehumidified air enters the return air pipe 7 under the action of the centrifugal fan 1 and returns to the heating tower 6, and the dehumidified air absorbs the heat when passing through the radiator 18 and is heated and then enters the drying tower 4 again to dry grains;
when the electric cabinet 12 detects that the temperature of the air at the air inlet side of the drying tower 4 is enough to meet the drying requirement through the temperature sensor 9, the electric heating device 14 can be stopped, and when the temperature at the air inlet side of the drying tower 4 is detected to be not enough to meet the drying requirement, the air flowing through the return air pipe 7 can be heated by the pneumatic electric heating device 14;
after the grains in the drying tower 4 sequentially pass through the multilayer inclined plates 17, the grains are taken away from the internal moisture by the circulating hot air for a plurality of times to become dry, finally fall on the conveying belt 8 arranged at the bottom of the drying tower 4 and are output from the drying tower 4 along with the operation of the conveying belt 8.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (8)
1. An internal draft type heat recovery grain dryer comprises a drying tower (4), a heat exchange device (15), a centrifugal fan (1) and an electric cabinet (12), and is characterized in that the air inlet side and the air outlet side of the drying tower (4) are respectively communicated with a heating tower (6) and a dehumidifying tower (2);
the dehumidification tower (2) is communicated with an air inlet of the centrifugal fan (1), an air outlet of the centrifugal fan (1) is communicated with an air return pipe (7), and the air return pipe (7) is communicated with the heating tower (6);
a condenser (16) is arranged in the dehumidification tower (2), a radiator (18) is arranged in the heating tower (6), and the condenser (16) and the radiator (18) can be connected to the heat exchange device (15) in a heat conduction mode.
2. The internal draft heat recovery grain dryer according to claim 1, wherein the drying tower (4) is of a box structure, the top of the drying tower (4) is integrally formed with the feed hopper (3), the inside of the drying tower (4) is integrally formed with a plurality of inclined plates (17), and the bottom of the drying tower (4) is provided with the conveying belt (8).
3. The internal draft heat recovery grain dryer according to claim 2, wherein the air inlet side and the air outlet side of the drying tower (4) are both communicated with a ventilation pipe (5), and the ventilation pipe (5) is located between two adjacent inclined plates (17).
4. The internal draft heat recovery grain dryer of claim 3, wherein the heating tower (6) and the dehumidification tower (2) are communicated to the drying tower (4) through a ventilation pipe (5), and a temperature sensor (9) is arranged on the ventilation pipe (5) between the drying tower (4) and the heating tower (6).
5. The internal draft heat recovery grain dryer according to claim 4, wherein the condenser (16) and the radiator (18) are both of a multi-layer grid plate structure, copper pipes penetrate through the grid plates and are communicated with the heat exchange pipes (13), and the condenser (16) and the radiator (18) are communicated with the heat exchange device (15) through the heat exchange pipes (13).
6. The internal draft heat recovery grain dryer according to claim 5, wherein the conveyor belt (8) further comprises a motor (10), and an output shaft of the motor (10) is fixed on a driving roller of the conveyor belt (8).
7. The internal draft heat recovery grain dryer according to claim 6, wherein the air return pipe (7) is provided with an electric heating device (14), and the electric heating device (14), the centrifugal fan (1), the temperature sensor (9), the motor (10) and the heat exchange device (15) are electrically connected to a control circuit in the electric cabinet (12).
8. The internal draft heat recovery grain dryer of claim 7, wherein a drain outlet (11) is integrally formed at the bottom of the moisture removal tower (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692053.0U CN218155372U (en) | 2022-07-04 | 2022-07-04 | Internal air draft type heat recovery grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221692053.0U CN218155372U (en) | 2022-07-04 | 2022-07-04 | Internal air draft type heat recovery grain dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218155372U true CN218155372U (en) | 2022-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221692053.0U Active CN218155372U (en) | 2022-07-04 | 2022-07-04 | Internal air draft type heat recovery grain dryer |
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|---|---|
| CN (1) | CN218155372U (en) |
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2022
- 2022-07-04 CN CN202221692053.0U patent/CN218155372U/en active Active
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