CN111473609A - Drying device - Google Patents
Drying device Download PDFInfo
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- CN111473609A CN111473609A CN202010322564.2A CN202010322564A CN111473609A CN 111473609 A CN111473609 A CN 111473609A CN 202010322564 A CN202010322564 A CN 202010322564A CN 111473609 A CN111473609 A CN 111473609A
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- circulating air
- drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/02—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in buildings
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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
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
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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
- F26B21/003—Supply-air or gas filters
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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
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
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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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
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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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides a drying device, which comprises a shell and a circulating fan, wherein a circulating air cavity and a drying cavity are arranged in the shell, a fresh air port and an air outlet are arranged on the shell, the fresh air port can communicate the outside with the circulating air cavity, the circulating fan is positioned in the circulating air cavity, an air inlet is arranged between the circulating air cavity and the drying cavity, the air inlet is close to the lower part of the drying cavity, and the air outlet communicates the outside with the drying cavity; a storage platform is arranged in the drying cavity and is higher than the air inlet; the drying device also comprises a heating device for heating the circulating air cavity so as to improve the temperature in the circulating air cavity; this drying device can evenly dry the material.
Description
Technical Field
The invention relates to the field of drying equipment, in particular to a drying device.
Background
At present, an air source heat pump dryer generally uses a drying room and batch type drying, materials are stacked by using a special drying and loading device, airflow blown out by a fan directly faces the materials and penetrates through the materials, and the materials are blown by a plurality of fans in an up/down or front/back or left/right circulating mode to be dried; and even if the uniform drying process is achieved by combining a plurality of air systems by utilizing the knowledge of workers on the process, the materials are difficult to uniformly dry.
Disclosure of Invention
Based on this, it is necessary to provide a drying apparatus capable of uniformly drying materials.
The invention provides a drying device, which comprises a shell and a circulating fan, wherein a circulating air cavity and a drying cavity are arranged in the shell, the drying cavity is provided with an air inlet and an air outlet, the shell is provided with a fresh air inlet and an air outlet, the fresh air port can communicate the outside with the circulating air cavity, the fresh air port is used for supplying fresh air to the circulating air cavity, the circulating fan is positioned in the circulating air cavity, the circulating air cavity is communicated with the air inlet of the drying cavity, the circulating air cavity is used for supplying hot air to an air inlet of the drying cavity, the air inlet is close to the lower part of the drying cavity, a storage platform is arranged in the drying cavity, the storage platform is higher than the air inlet, an air outlet of the drying cavity is connected with the air outlet and the circulating air cavity, the drying device is used for exhausting air to the air outlet and/or the circulating air cavity, and the drying device further comprises a heating device used for heating the air in the circulating air cavity.
Preferably, in a first working state, the air outlet simultaneously exhausts air to the air outlet and the circulating air cavity; in a second working state, the air outlet exhausts air to the air outlet and is not communicated with the circulating air cavity; and in a third working state, the air outlet exhausts air to the circulating air cavity and is not communicated with the air outlet.
Preferably, the circulating air cavity comprises an upper circulating air cavity and a lower circulating air cavity, a plurality of air holes are formed in a material placing platform in the drying cavity, the material placing platform divides the material cavity into an upper drying cavity and a lower drying cavity, the upper drying cavity is communicated with the lower drying cavity through the air holes, the lower circulating air cavity is communicated with the lower drying cavity, the upper circulating air cavity is communicated with the lower drying cavity, and the air outlet is communicated with the upper circulating air cavity; and the air outlet is provided with an adjusting device which can open and close the air outlet.
Preferably, the fresh air inlet is communicated with the upper circulating air cavity, the upper circulating air cavity is communicated with the lower circulating air cavity, the fresh air inlet is provided with an adjusting valve, and the air quantity entering the upper circulating air cavity can be adjusted by adjusting the adjusting valve.
Preferably, a partition plate is arranged in the upper circulating air cavity, the partition plate divides the upper circulating air cavity into a first cavity and a second cavity, the first cavity is communicated with the fresh air inlet, the second cavity is communicated with the air outlet, a sliding plate valve is connected between the upper circulating air cavity and the lower circulating air cavity in a sliding manner, the sliding plate valve comprises a sliding plate, the length of the sliding plate is smaller than that of the upper circulating air cavity, and the sliding plate is driven by a power mechanism to slide; in a first state, the sliding plate is close to the first cavity, the first cavity is blocked with the lower circulating air cavity, and the second cavity is communicated with the lower circulating air cavity; in a second state, the sliding plate is close to the second cavity, the second cavity is blocked with the lower circulating air cavity, and the first cavity is communicated with the lower circulating air cavity; and in a third state, the sliding plate is positioned between the first cavity and the second cavity, and the first cavity and the second cavity are communicated with the lower circulating air cavity.
Preferably, a partition plate is arranged in the upper circulating air cavity, the partition plate divides the upper circulating air cavity into a first cavity, a second cavity and a third cavity, and two fresh air ports are arranged, wherein one fresh air port is communicated with the first cavity, and the other fresh air port is communicated with the third cavity; a sliding plate valve is connected between the upper circulating air cavity and the lower circulating air cavity in a sliding manner, the sliding plate valve comprises a first sliding plate and a second sliding plate, the first sliding plate and the second sliding plate are arranged, the sum of the lengths of the first sliding plate and the second sliding plate is smaller than the length of the upper circulating air cavity, the length of the first sliding plate is larger than or equal to the length of the first cavity, the length of the second sliding plate is larger than or equal to the length of the third cavity, and the first sliding plate and the second sliding plate are driven by a power mechanism to slide; in a first state, the first sliding plate is arranged close to the first cavity, the second sliding plate is arranged close to the third cavity, the first cavity and the third cavity are both separated from the lower circulating air cavity, and the second cavity is communicated with the lower circulating air cavity; in a second state, the first sliding plate and the second sliding plate are arranged close to the second cavity, the lower circulating air cavity is separated from the second cavity, and the lower circulating air cavity is communicated with the first cavity and/or the third cavity; in a third state, the lower circulating air cavity is communicated with the first cavity and/or the third cavity, and the lower circulating air cavity is also communicated with the second cavity.
Preferably, the heating device comprises a condenser, an evaporator and a compressor, the evaporator is arranged close to the air outlet, and the condenser and the circulating fan are both positioned in the lower circulating air cavity;
the evaporator comprises an outer evaporator and an inner evaporator, the outer evaporator is positioned at the position of the air outlet close to the outside, and the inner evaporator is positioned in the upper circulating air cavity; alternatively, the first and second electrodes may be,
the drying device also comprises a total heat exchanger, the evaporator is positioned at the position where the air outlet is close to the outside, and the total heat exchanger is positioned in the upper circulating air cavity.
Preferably, an adjusting device capable of opening and closing the air outlet is arranged at the air outlet, the adjusting device is a movable louver, blades of the movable louver are rotatably connected to the shell, and the adjustable maximum angle of the blades is smaller than 90 degrees; when the wind pressure is less than the critical value, the movable shutter is closed; when the wind pressure is greater than the critical value, the movable shutter is opened.
Preferably, the air inlet is provided with an air homogenizing device; the air uniformizing device consists of a plurality of air uniformizing plates, and the air uniformizing plates transversely divide the air inlet; and the fresh air opening and/or the air outlet are/is provided with a filter screen.
Preferably, this drying device still includes controller, pressure gauge and warm and humid acidimeter, the pressure gauge with warm and humid acidimeter all with the controller electricity is connected, circulating fan also with controller electric connection.
The drying device of the invention separates the drying cavity from the circulating air cavity, the circulating fan enters and exits the air into the drying cavity through the air inlet, the air does not directly blow on the materials, but the air passes through the materials through the air pressure difference, and the materials are dried more uniformly.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a front view of a drying apparatus in accordance with a preferred embodiment of the present invention;
fig. 2 is a rear view of a drying apparatus in accordance with a preferred embodiment of the present invention;
FIG. 3 is a front view of another preferred embodiment of the present invention;
FIG. 4 is a front view of yet another preferred embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along the direction AA in FIG. 4;
fig. 6-1 to 6-3 are three state views of the slide plate valve of the present invention.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and specific embodiments for the purpose of better understanding and enabling those skilled in the art to practice the present invention, which are not intended to limit the present invention.
Referring to fig. 1-6, the present invention provides a drying device, which comprises a casing 1 and a circulating fan 2, wherein a circulating air chamber 4 and a drying chamber 3 are arranged in the casing 1, the drying chamber 3 has an air inlet 7 and an air outlet, and a fresh air inlet 9 and an air outlet 15 are arranged on the casing 1. The fresh air port 9 can communicate the outside with the circulating air cavity 4, the fresh air port is used for supplying fresh air to the circulating air cavity, and the circulating fan 2 is positioned in the circulating air cavity 4. The circulating air cavity 4 is communicated with an air inlet of the drying cavity 3, and the circulating air cavity 4 is used for supplying hot air to an air inlet of the drying cavity 3. The air inlet 7 is positioned between the circulating air cavity 4 and the drying cavity 3, the air inlet 7 is close to the lower part of the drying cavity 3, and the air outlet 15 is communicated with the outside and the drying cavity 3. And a storage platform 8 is arranged in the drying cavity 3, and the storage platform 8 is higher than the air inlet 7. The air outlet of the drying cavity 3 is connected with the air outlet 15 and the circulating air cavity 4 and used for exhausting air to the air outlet 15 and/or the circulating air cavity 4, the air exhausted to the air outlet 15 from the air outlet enters the atmosphere, and the air exhausted to the circulating air cavity 4 from the air outlet continues to circulate in the drying device, so that the heat loss can be effectively reduced. The drying device also comprises a heating device 5 for heating the circulating air cavity 4 so as to improve the temperature in the circulating air cavity 4. When the machine is started, the heating device 5 heats the circulating air cavity 4 and the drying cavity 3, the circulating fan 2 blows air into the drying cavity 3 through the air inlet 7, and the air flow flows from high pressure to low pressure due to the fact that the circulating fan 2 does not directly blow the materials but increases the air pressure of the lower portion of the materials, the air flow flows more uniformly, and the drying is more uniform. The air current passes through the material in the drying cavity 3 and then is discharged from the air outlet 15.
In the preferred embodiment, in the first working state, the air outlet simultaneously exhausts air to the air outlet 15 and the circulating air cavity 4; in the second working state, the air outlet exhausts air to the air outlet 15 and is not communicated with the circulating air cavity 4; in the third working state, the air outlet exhausts air to the circulating air cavity 4, and is not communicated with the air outlet 15.
In the preferred embodiment, the circulating air cavity 4 comprises an upper circulating air cavity 41 and a lower circulating air cavity 42, and the placement platform 8 in the drying cavity 3 is provided with a plurality of air holes which are small and dense, so that the drying effect of the materials is more uniform. The material cavity is divided into an upper drying cavity 31 and a lower drying cavity 32 by the storage platform 8, the upper drying cavity 31 is communicated with the lower drying cavity 32 through a vent hole, the lower circulating air cavity 42 is communicated with the lower drying cavity 3, the upper circulating air cavity 41 is communicated with the lower drying cavity 32, the air outlet 15 is communicated with the upper circulating air cavity 41, and an adjusting device capable of opening and closing the air outlet 15 is arranged at the air outlet 15. The air outlet 15 is closed, so that the air in the drying device cannot be discharged, and the air in the fresh air inlet 9 cannot enter the drying device basically due to the fact that the internal pressure is large enough. The wind inside the drying device forms internal circulation, thereby reducing energy loss, repeatedly utilizing the heated wind and saving energy.
In a further preferred embodiment, the fresh air opening 9 is communicated with the upper circulating air cavity 41, the upper circulating air cavity 41 is communicated with the lower circulating air cavity 42, and a regulating valve is arranged at the fresh air opening 9 and can regulate the air quantity entering the upper circulating air cavity 41. The fresh air port 9 and the air outlet are arranged close to each other, the air inlet amount of the fresh air port 9 can be adjusted, fresh air and circulating air enter the upper circulating air cavity 41, and the circulating fan 2 can suck air from the upper circulating air cavity 4, so that the fresh air and the circulating air can be sucked simultaneously. The proportion of the fresh air and the circulating air which participate in the circulation again can be changed by adjusting the amount of the fresh air entering the fresh air opening 9.
In a further preferred embodiment, a partition plate 14 is arranged in the upper circulating air cavity 41, the partition plate 14 divides the upper circulating air cavity 41 into a first cavity 421 and a second cavity 422, the first cavity 421 is communicated with the fresh air inlet 9, the second cavity 422 is communicated with the air outlet 15, a sliding plate valve is connected between the upper circulating air cavity 41 and the lower circulating air cavity 42 in a sliding manner, the sliding plate valve comprises a sliding plate 13, and the length of the sliding plate 13 is smaller than that of the upper circulating air cavity 41. The sliding plate 13 is driven by a power mechanism to slide, specifically, the power mechanism is an electric telescopic rod, a starting telescopic rod or a transmission structure of a motor and a gear. Under the first state, slide 13 is close to first cavity 421, and first cavity 421 blocks with lower circulating air chamber 42, and second cavity 422 is linked together with lower circulating air chamber 42, can not have the new trend, all use the circulating air circulation, and this kind of state is applicable to under the little condition of humidity. Under the second state, slide 13 is close to second cavity 422, and second cavity 422 blocks with lower circulation wind chamber 42, and first cavity 421 is linked together with lower circulation wind chamber 42, can realize the whole new wind circulation, and the wind after the circulation is whole discharges, and this kind of condition is applicable to the very big condition of humidity, uses when generally just beginning to dry. In the third state, the sliding plate 13 is located between the first cavity 421 and the second cavity 422, the first cavity 421 and the second cavity 422 are communicated with the lower circulating air cavity 42, circulating air and fresh air participate in circulation together, and the ratio of the fresh air to the circulating air can be adjusted steplessly.
In another preferred embodiment, a partition plate 14 is disposed in the upper circulating air chamber 41, the partition plate 14 divides the upper circulating air chamber 41 into a first chamber 421, a second chamber 422 and a third chamber 423, and two fresh air openings are provided, wherein one fresh air opening is communicated with the first chamber 421, and the other fresh air opening is communicated with the third chamber 423. A slide valve is connected between the upper circulating air cavity 41 and the lower circulating air cavity 42 in a sliding mode and comprises a first slide plate 131, a second slide plate 132, a first slide plate 131 and a second slide plate 132, the sum of the lengths of the first slide plate 131 and the second slide plate 132 is smaller than the length of the upper circulating air cavity 41, the length of the first slide plate 131 is larger than or equal to that of the first cavity 421, and the length of the second slide plate 132 is larger than or equal to that of the third cavity 423. The first sliding plate 131 and the second sliding plate 132 are both driven by a power mechanism to slide, specifically, the power mechanism is an electric telescopic rod, a starting telescopic rod or a transmission structure of a motor and a gear. Under the first state, first slide 131 is close to first cavity 421 and sets up, and second slide 132 is close to third cavity 423 and sets up, and first cavity 421 and third cavity 423 all cut off with lower circulating air chamber 42, and second cavity 422 and lower circulating air chamber 42 intercommunication can not have the new trend, all use the circulating air circulation, and this kind of state is applicable to under the little condition of humidity. In the second state, the first sliding plate 131 and the second sliding plate 132 are arranged close to the second cavity 422, the lower circulating air cavity 42 is separated from the second cavity 422, the lower circulating air cavity 42 is communicated with the first cavity 421 and/or the third cavity 423, full fresh air circulation can be achieved, and all circulated air is discharged. In the third state, the lower circulating air cavity 42 is communicated with the first cavity 421 and/or the third cavity 423, the lower circulating air cavity 42 is also communicated with the second cavity 422, circulating air and fresh air participate in circulation together, and the ratio of the fresh air to the circulating air can be adjusted steplessly. Further, the sum of the lengths of the first and third cavities 421 and 423 is equal to the length of the second cavity 422. Specifically, the sum of the lengths of the first cavity 421 and the third cavity 423 is equal to the length of the second cavity 422, the widths of the first cavity 421, the second cavity 422 and the third cavity 423 are the same, the length of the first sliding plate 131 is matched with the first cavity 421, and the length of the second sliding plate 132 is matched with the third cavity 423. The first sliding plate 131 can completely cover the first cavity 421 without shielding the third cavity 423, and the second sliding plate 132 can also completely cover the third cavity 423 without shielding the third cavity 423. After the first sliding plate 131 and the second sliding plate 132 slide towards the second cavity 422, the first sliding plate 131 and the second sliding plate 132 can be matched with each other to completely cover the third cavity 423 without shielding the first cavity 421 and the third cavity 423. Further, the lengths of the first chamber 421 and the third chamber 423 are also equal, the lengths of the first sliding plate 131 and the second sliding plate 132 are the same, and the first sliding plate 131 and the second sliding plate 132 are driven by the power mechanism to synchronously move in opposite directions.
In the preferred embodiment, the heating device 5 includes a condenser 52, an evaporator 51 and a compressor, the evaporator 51 is disposed near the air outlet, and both the condenser 52 and the circulation fan 2 are located inside the lower circulation air chamber 42. The heat transfer medium (such as freon) evaporates in the evaporator 51 to absorb heat, and flows to the condenser 52 under the driving of the compressor, and the heat transfer medium condenses in the condenser 52 to release heat. Repeating the above steps, the heat energy in the air can be transferred to the interior of the drying equipment.
In the preferred embodiment, the evaporator 51 includes an outer evaporator 511 and an inner evaporator 512, the outer evaporator 511 is located at the position close to the outside of the air outlet, the inner evaporator 512 is located in the upper circulating air cavity 41, the inner evaporator is mainly used for recovering heat, the outer evaporator is mainly used for reducing the temperature of the exhaust gas, reducing heat pollution, and simultaneously reusing the recovered heat. This kind of setting is particularly useful for using the equipment of slide valve regulation new trend and circulated air, and first cavity 421 (with third cavity 423) and second cavity 422 are separated, and the new trend is different with the route that circulated air got into lower circulated air chamber 42, can't use total heat exchanger 13, but can use evaporimeter 51 to retrieve the heat in the circulated air and recycle again. In another embodiment, the drying device further comprises a total heat exchanger, the evaporator 51 is located at a position close to the outside of the air outlet, the total heat exchanger is located in the upper circulating air cavity 41, the arrangement is suitable for an apparatus with a regulating valve at the fresh air inlet 9, the fresh air and the circulating air of the apparatus both flow through the upper circulating air cavity 41, the flow paths of the fresh air and the circulating air are converged, and the total heat exchanger is suitable for recycling heat in the circulating air.
In the preferred embodiment, the adjusting device is a louver 10, the blades of the louver 10 are rotatably connected to the shell 1, and the adjustable maximum angle of the blades is less than 90 degrees; when the wind pressure is less than the critical value, the movable shutter 10 is closed; when the wind pressure is greater than the critical value, the movable louver 10 is opened. After the fresh air inlet 9 is closed, the air pressure in the drying device is stable, the difference between the air pressure and the atmospheric pressure is small, and the movable shutter 10 is closed. When the fresh air inlet 9 is opened, air enters from the fresh air inlet 9, the pressure in the drying device is slightly large, and the wind pressure is applied to the movable shutter 10, so that the blades of the movable shutter 10 rotate, and the air outlet is opened.
In a preferred embodiment, the air inlet 7 is provided with an air evening device 7; the air uniformizing device 7 is composed of a plurality of air uniformizing plates, the air uniformizing plates transversely divide the air inlet 7, namely the extending direction of the air uniformizing plates is approximately parallel to the object placing surface of the object placing platform 8, and specifically, the included angle between the air uniformizing plates and the object placing surface is less than 30 degrees; the air homogenizing plate introduces air into the lower drying cavity 32, and the air direction of the air entering the drying cavity 3 is parallel to the object placing surface or inclines downwards relative to the object placing surface. The fresh air port 9 is provided with a filter screen to ensure that air entering the drying device is clean. The air outlet is provided with exhaust fan and filter screen for the gas flow speed reduces the impurity of exhaust air, avoids the material to be discharged, influences operational environment.
In a preferred embodiment, the drying device further comprises a controller, a pressure gauge and a thermo-hygrometer, the pressure gauge and the thermo-hygrometer are arranged on the drying equipment, the pressure gauge and the thermo-hygrometer are both electrically connected with the controller, and the circulating fan 2 is also electrically connected with the controller. In the first state, the drying device dries at a constant pressure. In the second state, the drying device can change the drying pressure according to the setting of the user. In the third state, the drying device adjusts the proportion of entering fresh air according to the data transmitted by the controller, the pressure gauge and the hygrothermograph, and the states of the circulating fan 2 and the exhaust fan. The automatic drying is combined, the operation is simpler, the labor input cost is low, and the drying effect is easy to unify.
The drying device provided by the invention has the advantages of small occupied area, low drying cost and convenience in operation, and solves the problem that small-batch and low-price products are difficult to dry. In addition, drying device separates stoving chamber 3 and circulating air chamber 4, and circulating fan 2 passes through the air intake with wind discrepancy stoving chamber 3 in, wind is not directly blown on the material, but makes wind pass the material through the atmospheric pressure difference, and the stoving material is more even, and it is effectual to dry.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A drying device is characterized by comprising a shell and a circulating fan, wherein a circulating air cavity and a drying cavity are arranged in the shell, the drying cavity is provided with an air inlet and an air outlet, a fresh air port and an air outlet are arranged on the shell, the fresh air port can communicate the outside with the circulating air cavity, the fresh air port is used for supplying fresh air to the circulating air cavity, the circulating fan is positioned in the circulating air cavity, the circulating air cavity is communicated with the air inlet of the drying cavity, the circulating air cavity is used for supplying hot air to the air inlet of the drying cavity, the air inlet is close to the lower part of the drying cavity, a storage platform is arranged in the drying cavity, the storage platform is higher than the air inlet, the air outlet of the drying cavity is connected with the air outlet and the circulating air cavity and is used for exhausting air to the air outlet and/or the circulating air cavity, the drying device also comprises a heating device for heating the air in the circulating air cavity.
2. The drying apparatus of claim 1, wherein in the first operating state, the air outlet simultaneously exhausts air to the air outlet and the circulating air chamber; in a second working state, the air outlet exhausts air to the air outlet and is not communicated with the circulating air cavity; and in a third working state, the air outlet exhausts air to the circulating air cavity and is not communicated with the air outlet.
3. The drying device according to claim 1, wherein the circulating air chamber comprises an upper circulating air chamber and a lower circulating air chamber, a plurality of air holes are formed in a platform in the drying chamber, the platform divides the material chamber into an upper drying chamber and a lower drying chamber, the upper drying chamber and the lower drying chamber are communicated through the air holes, the lower circulating air chamber and the lower drying chamber are communicated, the upper circulating air chamber is communicated with the lower drying chamber, and the air outlet is communicated with the upper circulating air chamber; and the air outlet is provided with an adjusting device which can open and close the air outlet.
4. The drying apparatus as claimed in claim 3, wherein said fresh air inlet is in communication with said upper circulating air chamber, said upper circulating air chamber is in communication with said lower circulating air chamber, and said fresh air inlet is provided with an adjusting valve for adjusting the amount of air entering said upper circulating air chamber.
5. The drying device according to claim 3, wherein a partition is disposed in the upper circulating air chamber, the partition divides the upper circulating air chamber into a first chamber and a second chamber, the first chamber is communicated with the fresh air inlet, the second chamber is communicated with the air outlet, a slide valve is slidably connected between the upper circulating air chamber and the lower circulating air chamber, the slide valve comprises a slide plate, the length of the slide plate is smaller than that of the upper circulating air chamber, and the slide plate is driven by a power mechanism to slide; in a first state, the sliding plate is close to the first cavity, the first cavity is blocked with the lower circulating air cavity, and the second cavity is communicated with the lower circulating air cavity; in a second state, the sliding plate is close to the second cavity, the second cavity is blocked with the lower circulating air cavity, and the first cavity is communicated with the lower circulating air cavity; and in a third state, the sliding plate is positioned between the first cavity and the second cavity, and the first cavity and the second cavity are communicated with the lower circulating air cavity.
6. The drying apparatus of claim 3, wherein a partition is disposed in the upper circulation air chamber, the partition divides the upper circulation air chamber into a first chamber, a second chamber and a third chamber, and there are two fresh air ports, one of the fresh air ports is communicated with the first chamber, and the other fresh air port is communicated with the third chamber; a sliding plate valve is connected between the upper circulating air cavity and the lower circulating air cavity in a sliding manner, the sliding plate valve comprises a first sliding plate and a second sliding plate, the first sliding plate and the second sliding plate are arranged, the sum of the lengths of the first sliding plate and the second sliding plate is smaller than the length of the upper circulating air cavity, the length of the first sliding plate is larger than or equal to the length of the first cavity, the length of the second sliding plate is larger than or equal to the length of the third cavity, and the first sliding plate and the second sliding plate are driven by a power mechanism to slide; in a first state, the first sliding plate is arranged close to the first cavity, the second sliding plate is arranged close to the third cavity, the first cavity and the third cavity are both separated from the lower circulating air cavity, and the second cavity is communicated with the lower circulating air cavity; in a second state, the first sliding plate and the second sliding plate are arranged close to the second cavity, the lower circulating air cavity is separated from the second cavity, and the lower circulating air cavity is communicated with the first cavity and/or the third cavity; in a third state, the lower circulating air cavity is communicated with the first cavity and/or the third cavity, and the lower circulating air cavity is also communicated with the second cavity.
7. The drying apparatus as claimed in claim 3, wherein said heating device includes a condenser, an evaporator and a compressor, said evaporator is disposed near said air outlet, said condenser and said circulating fan are both located inside said lower circulating air chamber;
the evaporator comprises an outer evaporator and an inner evaporator, the outer evaporator is positioned at the position of the air outlet close to the outside, and the inner evaporator is positioned in the upper circulating air cavity; alternatively, the first and second electrodes may be,
the drying device also comprises a total heat exchanger, the evaporator is positioned at the position where the air outlet is close to the outside, and the total heat exchanger is positioned in the upper circulating air cavity.
8. The drying apparatus of claim 1, wherein the air outlet is provided with an adjusting device capable of opening and closing the air outlet, the adjusting device is a movable louver, blades of the movable louver are rotatably connected to the housing, and the adjustable maximum angle of the blades is less than 90 °; when the wind pressure is less than the critical value, the movable shutter is closed; when the wind pressure is greater than the critical value, the movable shutter is opened.
9. The drying apparatus of claim 1, wherein the air inlet is provided with an air evening device; the air uniformizing device consists of a plurality of air uniformizing plates, and the air uniformizing plates transversely divide the air inlet; and the fresh air opening and/or the air outlet are/is provided with a filter screen.
10. The drying apparatus of any one of claims 1 to 9, further comprising a controller, a pressure gauge and a thermo-hygrometer, wherein the pressure gauge and the thermo-hygrometer are electrically connected to the controller, and the circulation fan is also electrically connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322564.2A CN111473609A (en) | 2020-04-22 | 2020-04-22 | Drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010322564.2A CN111473609A (en) | 2020-04-22 | 2020-04-22 | Drying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877633A (en) * | 2022-06-09 | 2022-08-09 | 佛山市一可纯科技有限公司 | Energy-saving electric heating air drying device with balanced circulating air heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877633A (en) * | 2022-06-09 | 2022-08-09 | 佛山市一可纯科技有限公司 | Energy-saving electric heating air drying device with balanced circulating air heat |
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