TWI682140B - Drying device - Google Patents

Abstract

A drying device has an accommodating space inside, and a door can open or close the accommodating space. The accommodating space is provided with a uniform cooling mechanism, so that the temperature of the accommodating space can be controlled at 6~20℃, and A bracket is placed in the accommodating space, and there are several longitudinal slots arranged in parallel inside the bracket, and a fan group is provided at the bottom of the bracket, and a bracket is provided on one side opposite to each longitudinal slot Out of the fan group, a number of desiccant groups composed of diatomaceous earth, activated alumina or molecular sieve are inserted into each longitudinal slot, so that the desiccant group can be matched with the desiccant group at low temperature to achieve the purpose of drying And can retain the original color and flavor of the dried objects.

Description

Drying device

The invention relates to a drying device, in particular to an energy-saving drying device which can retain the original color and flavor of the object to be dried.

According to the general method of drying vegetables, fruits and seeds, there are common natural drying and drying through mechanical equipment. Among them, natural drying is mainly to use the heat energy generated by sunlight irradiation in an open space to achieve the purpose of drying. However, this method not only requires a longer drying time, but drying in an open space is not only susceptible to pollution, but the sun is long. Under time exposure, the ultraviolet ray is also likely to damage the quality of the object to be dried, and it will be limited by climate change, which cannot ensure its drying efficiency, and the object to be dried tends to become dark brown after drying.

The drying method using mechanical equipment has the advantage of ensuring its drying efficiency, and the common drying methods of mechanical equipment include hot air drying and vacuum freeze drying. Among them, hot air drying is to use the heating equipment to generate heat energy, and use the fan to generate hot air, and use this hot air to blow the object to be dried to achieve the purpose of drying. However, the general hot air dryer generally has the disadvantage of energy consumption, and the high temperature of hot air drying will It will evaporate the volatile odor in the dried object itself, so it is also easy to damage the quality of the dried object, and can not retain the original flavor of the dried object, and the dried object after drying by hot air is also easy to darken Brown, when the object to be dried is seeds, when the drying temperature is too high, the physiological functions of the seeds will be destroyed and the germination rate will be reduced.

Vacuum freeze-drying is to use a traditional refrigerant compressor to freeze the moisture in the dried object into solid water, and then reduce the pressure in the vacuum chamber groove by vacuuming, so that the solid water in the dried object can Sublimated and discharged out of the vacuum tank to achieve the purpose of drying; drying by vacuum freeze-drying, although it will not damage the quality of the object to be dried, but its related freezing and vacuuming equipment is expensive and must be cooled to 0 The low temperature below ℃ can freeze the water smoothly, so it is actually quite energy consuming in operation, and there is a problem that the drying cost is too high.

In view of this, how to improve the existing common drying methods is the primary problem to be solved by the present invention.

One of the objects of the present invention is to provide a drying device which has the effect of saving energy and retaining the original color and flavor of the object to be dried.

The second object of the present invention is to provide a drying device, which can be used for dry storage of seeds and has the effect of maintaining a high germination rate of seeds.

In order to achieve the foregoing purpose, the present invention provides a drying device, comprising: a box with an accommodating space inside, and a door cover to open or close the accommodating space, and is provided in the accommodating space There is a uniform cooling mechanism, so that the temperature of the accommodating space can be controlled between 6~20℃; 　　 a bracket is placed in the accommodating space, the bracket is in the form of a hollow frame with an upper opening and a lower opening, and A plurality of longitudinal slots arranged side by side are provided inside the bracket, the bracket is provided with an inlet fan group at the lower opening thereof, and the bracket is provided with an outlet fan group on a side opposite to each longitudinal slot; and Several desiccant groups in the form of plates are correspondingly inserted into the longitudinal slots respectively. The main drying component of each desiccant group is composed of diatomaceous earth, activated alumina or molecular sieve.

Preferably, an air flow channel is formed between the longitudinal slots respectively, and the bracket vertically extends upward from one side of the longitudinal slots to form a side plate portion higher than the upper opening thereof, the side plate portion is provided with The outlet fan group, the inlet fan group can send air upward from the bottom of the bracket into each airflow channel, and then release it from the upper opening, and the outlet fan group can release the air from the upper opening The air is discharged relatively away from the bracket.

Preferably, each of the desiccant groups respectively has a plate-shaped frame in the form of a hollow plate, and a plurality of vent holes are respectively formed on at least two opposite sides of each plate-shaped frame, and each plate-shaped frame A predetermined number of desiccant particles are placed in the frame. The desiccant particles are made of diatomaceous earth, activated alumina or molecular sieve.

Furthermore, each of the plate-shaped frames is made of a metal material, and the diameter of each vent hole is smaller than the diameter of the desiccant particles.

However, it is not difficult to obtain an in-depth understanding from the following detailed descriptions and drawings of the selected embodiments.

As shown in Figures 1 to 3, the present invention provides a drying device, which is mainly composed of a box 11, a bracket 21 and a number of desiccant groups 31, of which:

The box 11 has an accommodating space 12 inside, and a door cover 13 to open or close the accommodating space 12, and a uniform cooling mechanism 14 is provided in the accommodating space 12, and the refrigeration mechanism 14 It can be composed of a refrigerant compressor or a cooling chip, so that the temperature in the accommodating space 12 can be controlled between 6 and 20°C.

The bracket 21 is constructed by several plates into a hollow frame structure with an upper opening 211 and a lower opening 212. The bracket 21 is used to be disposed in the accommodating space 12, and a plurality of brackets are provided inside the bracket 21 The longitudinal slots 22 are juxtaposed and spaced apart, so that an air flow channel 23 is formed between the longitudinal slots 22, and the bracket 21 is provided with at least one fan group 24 at its lower opening 212. A side plate portion 213 is formed vertically extending upward from one side of the upper opening 211, and at least one fan group 25 is provided on the side plate portion 213, and the fan group 24 can direct air upward from the bottom of the bracket 21 After being fed into each of the airflow channels 23, the air is discharged from the upper opening 211, and the fan group 25 can discharge the air released from the upper opening 211 relatively away from the bracket 21.

Each desiccant group 31 is in the form of a plate and correspondingly inserted into each longitudinal slot 22 respectively. In this embodiment, each desiccant group 31 has a plate-shaped frame 32 in the form of a hollow plate Each of the plate-shaped frames 32 is made of a metal material, and a plurality of ventilation holes 321 are respectively formed on at least two opposite sides of each of the plate-shaped frames 32, and are respectively inserted into the plate-shaped frames 32 There are a predetermined number of desiccant particles 33 to constitute its main drying component, wherein the desiccant particles 33 may be made of diatomaceous earth, activated alumina or molecular sieve. The diameter of each vent hole 321 is 2.5 mm, and a desiccant particle 33 with a diameter of 3 mm is selected to ensure that the desiccant particle 33 does not fall out of each vent hole 321. And when the desiccant particles 33 are made of diatomaceous earth, because the diatomaceous earth is a biochemical sedimentary rock, deposited from the cell wall of the diatom, it is porous and has extremely strong water absorption, and because it is natural Minerals are non-toxic and highly safe, so they are particularly suitable for drying applications of food or medicine, and diatomite itself can exhibit extremely strong hygroscopicity when the relative humidity is above 0.4, so it has Can quickly reduce the effect of environmental humidity.

In actual use of the present invention composed of the above-mentioned structure, as shown in FIG. 4, the user only needs to place a carrier shelf 41 beside the accommodating space 12 of the box 11 beside the bracket 21, and After a predetermined object to be dried (not shown in the figure) is loaded on the carrier shelf 41, the accommodating space 12 is closed by the door cover 13, and then the accommodating space 12 is enclosed by the cooling mechanism 14 The temperature is reduced to between 6 and 20°C, and in conjunction with the operation of the inlet fan group 24 and the outlet fan group 25 on the bracket 21, the air in the accommodating space 12 can be removed from the bracket 21 by the inlet fan group 24 After the bottom is fed upwards into each of the airflow channels 23, it is released from the upper opening 211 of the bracket 21, and then the fan group 25 then directs the air released from the upper opening 211 toward the tray shelf 41 Exhaust, and thereby an air circulation flow path (as indicated by the dotted arrow in FIG. 4) can be formed in the accommodating space 12, and when the air is sent into each air flow channel 23 by the inlet fan group 24 The desiccant group 31 with diatomite, activated alumina or molecular sieve as the main drying component itself has excellent hygroscopic characteristics, so that when the air passes upward through each of the air flow channels 23, the moisture contained in the air It can be quickly absorbed by the desiccant group 31 filled with desiccant particles 33 beside each of the air flow channels 23, so that the fan group 25 can discharge dry air in the direction of the carrier shelf 41, and In this way, the object to be dried on the carrier shelf 41 can be quickly dried.

The drying device provided by the present invention can have the following advantages:

1. The present invention uses its cooling mechanism 14 to maintain the accommodating space 12 in the box between 6 and 20°C. Compared with the conventional freeze-drying method, the temperature must be reduced to below 0°C. The drying device provided by the present invention More energy efficient.

2. The present invention achieves the purpose of drying with the low temperature environment and the desiccant group 31, and during the drying process, the low temperature can prevent the sugar in the dried material from being burnt, and can indeed avoid the volatility in the dried material The odor is emitted, so the original color and flavor of the dried object can be retained.

3. The present invention adopts materials with excellent hygroscopicity such as diatomaceous earth, activated alumina or molecular sieve as the main drying component of the desiccant group 31, and is matched with the inlet fan group 24 and the outlet fan group 25 in the container The air circulation flow path is formed in the space 12, and the internal humidity of the accommodating space 12 can be quickly reduced, so as to help the moisture of the dried matter to be quickly distributed.

4. The present invention utilizes its cooling mechanism 14 to maintain the accommodating space in the box at a low temperature of 6-20°C, which can further prevent the desiccant group 31 from easily generating the accommodating space when generating heat energy due to the hygroscopic reaction The internal temperature of 12 rises, which causes dew point phenomenon that water vapor condenses on the surface of the object to be dried.

5. The drying device provided by the present invention adopts a low-temperature and low-humidity drying method. Therefore, when the object to be dried is a seed, it can ensure that the physiological function of the seed is not destroyed, and the high germination rate can be maintained. Reducing the ambient temperature and moisture can effectively slow down the activity of the seeds (slow their respiration), so that the seeds can be stored for a long time.

6. After using the drying device provided by the present invention for a period of time, only the desiccant group 31 needs to be taken out of the holder 21 and heated and dried, so that the water absorbed by the desiccant group 31 can be dispersed. The moisture absorption capacity is regenerated, and it is restored to have excellent moisture absorption capacity again, so it has the advantage of being reusable.

The above-mentioned embodiments are disclosed to illustrate the present invention, not to limit the present invention. Therefore, any change in value or replacement of equivalent elements should still belong to the scope of the present invention.

In summary, when the person who is familiar with this skill understands that the present invention can indeed achieve the aforementioned objectives, and in fact complies with the provisions of the Patent Law, the application is submitted according to law.

11‧‧‧Box

12‧‧‧accommodation space

13‧‧‧door cover

14‧‧‧Refrigeration mechanism

21‧‧‧Bracket

211‧‧‧Upper opening

212‧‧‧lower opening

213‧‧‧Side board

22‧‧‧Vertical slot

23‧‧‧Air flow channel

24‧‧‧Into the fan group

25‧‧‧Exit fan set

31‧‧‧Desiccant group

32‧‧‧plate frame

321‧‧‧Ventilation hole

33‧‧‧Desiccant particles

41‧‧‧Shelf shelf

Figure 1 is a schematic diagram of the appearance of the present invention. Figure 2 is an assembly diagram of the frame body of the present invention. FIG. 3 is a schematic structural view of the frame body of the present invention. Fig. 4 is a schematic view of the use state of the present invention.

11‧‧‧Box

12‧‧‧accommodation space

13‧‧‧door cover

14‧‧‧Refrigeration mechanism

21‧‧‧Bracket

213‧‧‧Side board

22‧‧‧Vertical slot

23‧‧‧Air flow channel

24‧‧‧Into the fan group

25‧‧‧Exit fan set

31‧‧‧Desiccant group

Claims (5)

A drying device includes: a box with an accommodating space inside, and a door cover to open or close the accommodating space, and a uniform cooling mechanism is provided in the accommodating space to make the accommodating space The temperature of the space can be controlled between 6~20℃; a bracket is placed in the accommodating space, the bracket is in the form of a hollow frame with an upper opening and a lower opening, and there are several The longitudinal slots are arranged side by side, and an air flow channel is formed between the longitudinal slots, the bracket is provided with a fan group at the lower opening, and the bracket is provided with a side opposite to the longitudinal slots A fan group; and several plate-shaped desiccant groups, respectively inserted into the longitudinal slots, the main drying component of each desiccant group is composed of diatomaceous earth, activated alumina or molecular sieve . The drying device according to claim 1, wherein: the bracket vertically extends upward from one side of each longitudinal slot to form a side plate portion higher than the upper opening thereof, the side plate portion is provided with the fan outlet group, the The inlet fan group can send air upward from the bottom of the bracket into each airflow channel and then release it from the upper opening, and the outlet fan group can release the air released from the upper opening relatively away from the bracket Direction. The drying device according to claim 1, wherein each of the desiccant groups has a plate-shaped frame in the form of a hollow plate, and a plurality of air-permeable openings are respectively provided on at least two opposite sides of each plate-shaped frame A predetermined number of desiccant particles are placed in each of the plate-shaped frames. The desiccant particles are made of diatomaceous earth, activated alumina or molecular sieve. The drying device according to claim 3, wherein each of the plate-shaped frames is made of metal material. The drying device according to claim 3, wherein the diameter of each vent hole is smaller than the diameter of the desiccant particles.

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