CN114471091A - Drying device and split type power distribution cabinet with same - Google Patents

Abstract

The invention relates to the field of power equipment, in particular to a drying device which comprises a body arranged between a to-be-dehumidified area and the atmosphere, wherein a dehumidifying part, a drying part, a drainage part and a material exchange unit are arranged in the body, desiccants are filled in the dehumidifying part and the drying part, the material exchange unit is used for exchanging fillers in the dehumidifying part and the drying part, the drainage part is arranged between the dehumidifying part and the drying part, the dehumidifying part, the drainage part and the drying part are sequentially communicated, the drainage part is used for guiding airflow to flow from the dehumidifying part to the drying part, the dehumidifying part is communicated with the to-be-dehumidified area, and the drying part is communicated with the atmosphere, so that the dehumidifying part and the drying part continuously exchange the desiccant. The invention also relates to a split type power distribution cabinet with the drying device.

Description

A drying device and a split power distribution cabinet having the same

technical field

The invention relates to the field of electric equipment, in particular to a drying device. The invention also relates to a split power distribution cabinet with a drying device.

Background technique

Power distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes), which are the final equipment of the power distribution system. Power distribution cabinet is a general term for motor control center. The power distribution cabinet is used in situations where the load is relatively scattered and there are few circuits; the motor control center is used in the situations where the load is concentrated and there are many circuits. They distribute the electrical energy of a certain circuit of the upper-level power distribution equipment to the nearest load. This class of equipment shall provide protection, monitoring and control of the load. At present, how to dehumidify the power distribution cabinet is an urgent problem to be solved. In the power distribution cabinet, the existence of water vapor will not only cause the risk of corrosion of the power distribution cabinet frame, but more importantly, it is easy to cause short circuit of the circuit and damage to the power components. However, in the existing power distribution cabinet with drying function, a drying device is generally installed inside the power distribution cabinet. When overhauling the drying device, the power distribution cabinet needs to be opened, which is cumbersome and occupies the space of the power distribution cabinet. installation space.

Chinese patent CN105790101B discloses a special dehumidification device for high-voltage switch cabinets, including an insulating cylinder, a cover plate, a desiccant fixing plate, a ring heater, a cooling fan, a sensor assembly and a control center. The method of cyclic dehumidification of the system adopts chemical method to absorb moisture and dehumidify. The color of the discolored desiccant and the environmental humidity are sensed through the sensor component, and the ring heating is turned on in time to ensure the working efficiency of the desiccant.

The dehumidification device only places the desiccant fixing plate in the high-voltage switch cabinet to dehumidify, without any external promotion, and the dehumidification efficiency is low.

SUMMARY OF THE INVENTION

Based on this, it is necessary to provide a drying device and a split-type power distribution cabinet having the same in view of the problems of the prior art.

In order to solve the prior art problem, the technical scheme adopted in the present invention is:

The present application provides a drying device, comprising a body disposed between the area to be dehumidified and the atmosphere, a dehumidification part, a drying part, a drainage part and a material exchange unit are arranged in the body, and the interior of the dehumidification part and the drying part are filled with drying The material exchange unit is used to exchange the internal filling of the dehumidification part and the drying part. The drainage part is arranged between the dehumidification part and the drying part. The dehumidification part, the drainage part and the drying part are connected in sequence, and the drainage part is used to guide the The airflow flows from the dehumidifying part to the drying part, the dehumidifying part is communicated with the area to be dehumidified, and the drying part is communicated with the atmosphere.

Preferably, the body includes an outer cylinder, an inner cylinder and a drainage fan, and the material exchange unit includes a partition plate and a partition plate driver,

The outer cylinder is coaxially arranged outside the inner cylinder, the two ends of the outer cylinder and the inner cylinder are closed, the inner circumference of the outer cylinder and the outer circumference of the inner cylinder form an annular chamber, and the outer cylinder is evenly arranged with the first air hole area and the outer circumference along the circumferential direction. The second air hole area, the first air hole area and the second air hole area are communicated with the annular chamber, the inner cylinder is provided with a third air hole area, the third air hole area is located inside the first air hole area, and the inner cylinder is provided with a third air hole area. There is also an interlayer cavity coaxial with it, and the outer peripheral surface of the interlayer cavity is provided with a fourth air hole area that communicates with the annular chamber, the fourth air hole area is located inside the second air hole area, and the interlayer cavity is along its axis. A communication port is arranged on the one end of the inner cylinder, which is communicated with the inner cavity of the inner cylinder, and an electric heating sheet is also arranged in the interlayer cavity;

The drainage fan is arranged in the inner cavity of the inner cylinder, and the drainage fan is used to guide the air flow from the inner cavity of the inner cylinder to the interlayer cavity;

The partition plate is arranged in the annular part to rotate along the circumferential direction, the partition plate divides the annular chamber into a plurality of independent and exchangeable cavities, the desiccant is filled into the cavity, and the partition plate driver is arranged on the body and is connected with the body. The dividing plate is in driving connection, and the dividing plate driver is used for guiding the dividing plate to rotate in the circumferential direction in the annular chamber.

Preferably, one end of the interlayer cavity along the axial direction is provided with a slot, the slot communicates with the area to be dehumidified, the slot and the communication port are located on the opposite side of the interlayer cavity, and the slot diameter of the slot is larger than the aperture of the fourth air hole area .

Preferably, the inner peripheral surface of the interlayer cavity is provided with coaxial drainage fins at equal intervals, the electric heating fins are coaxially arranged on the outer peripheral surface of the interlayer cavity at equal intervals, the drainage fins and the electric heating fins are staggered at equal intervals, and the outer diameter of the drainage fins is greater than The inner diameter of the heating sheet is smaller than the outer diameter of the fourth air hole area, and the inner diameter of the electric heating sheet is smaller than the inner diameter of the fourth air hole area.

Preferably, the drainage fan includes a first rotating roller, a one-way helical blade and a first servo motor, the first rotating roller is coaxially arranged in the inner cylinder, and the one-way helical blade is coaxially arranged on the outer circumferential surface of the one-way helical blade On the top, the first servo motor is fixedly arranged on the outer ends of the outer cylinder and the inner cylinder, and the output shaft of the first servo motor is synchronously connected to the first rotating roller.

Preferably, the outer edge of the one-way helical sheet is provided with a first rubber strip, and the first rubber strip abuts against and cooperates with the inner wall of the inner cylinder.

Preferably, the drainage fan includes a second rotating roller, an impeller and a first servo motor, the second rotating roller is coaxially arranged in the inner cylinder, the impeller is coaxially arranged at one end of the first rotating roller, and the impeller is located inside the communication port , the first servo motor is fixedly arranged on the outer side of the outer cylinder and the inner cylinder, and the output shaft of the first servo motor is connected with the second rotating roller synchronously.

Preferably, second rubber strips are provided on both sides of the partition plate along the axial direction of the outer cylinder.

Preferably, the partition plate driver comprises a fixed ring, a second servo motor and a gear, the fixed ring is coaxially rotatably arranged at both ends of the annular chamber and the partition plates are circumferentially arranged between the two fixed rings, and the The outer end is coaxially provided with a ring gear, the second servo motor is fixedly arranged on the outer ends of the outer cylinder and the inner cylinder, the output shaft of the second servo motor is coaxially connected with the gear, and the gear meshes with the ring gear.

The present application also provides a split power distribution cabinet with a drying device, which includes a drying device.

The beneficial effects of the present application compared to the prior art are:

1. In this application, a dehumidification part and a drying part are arranged in the body, and the desiccant in the dehumidification part and the drying part is exchanged through the material exchange unit, so that the dehumidification part can be dehumidified stably and continuously, and the air after drying can be passed through. The drying area blows dry the moist desiccant in it, so that the dehumidifying part and the drying part can continuously exchange the desiccant;

2. In this application, a dehumidification part, a drying area, and a material exchange unit are composed of an outer cylinder, an inner cylinder, a drainage fan, a partition plate and a partition plate driver, which can effectively and continuously dehumidify and exchange the dried desiccant;

3. In the present application, a slot is arranged at one end of the interlayer cavity, so that the drying airflow can pass through the fourth air hole area uniformly, so as to uniformly dry the moist desiccant in the drying area;

4. The application can guide the dry air flow through the interlayer cavity in a wave shape along the axial direction through the guide sheet, so that the dry air flow can have an impact on the fourth air hole area, thereby improving the drying efficiency;

5. In the first embodiment of the present application, a rotatable one-way helix is arranged in the inner cylinder, which can guide the air flow from the inner cavity of the inner cylinder to the upper interlayer cavity;

6. In the second embodiment of the present application, by arranging a rotatable impeller in the inner cylinder, it can guide the airflow in the inner cavity of the inner cylinder to flow to the interlayer cavity in the axial direction;

7. In the present application, through the fixing ring, the second servo motor, and the gear, the partition plate can be stably rotated in the circumferential direction in the annular chamber, so as to facilitate stable exchange of the desiccant in the dehumidifying part and the drying part.

Description of drawings

1 is a perspective view of the drying device of the first embodiment in a first viewing angle state;

2 is a perspective view of a drying device according to an embodiment at a second viewing angle;

3 is a top view of the drying device of the first embodiment;

Fig. 4 is the sectional view of the A-A direction of Fig. 3;

Fig. 5 is a cross-sectional view taken along the line B-B in Fig. 3

Fig. 6 is a partial enlarged view at C of Fig. 4;

Fig. 7 is the partial enlarged view of D place of Fig. 4;

8 is a front view of the drying device of the first embodiment;

Fig. 9 is the sectional view of the E-E direction of Fig. 8;

10 is a perspective view of the material exchange unit of the first embodiment

11 is a perspective view of the inner cylinder of the first embodiment;

12 is an exploded perspective view of the inner cylinder of the first embodiment;

13 is a front view of the second embodiment;

FIG. 14 is a cross-sectional view taken along the F-F direction of FIG. 13;

15 is a perspective view of the inner cylinder and the impeller of the second embodiment.

The symbols in the figure are:

1-outer cylinder; 1a-first air-hole area; 1b-second air-hole area; 2-inner cylinder; 2a-third air-hole area; 2b-interlayer cavity; 2b1- fourth air-hole area; 2b2-connection Mouth; 2b3-heating sheet; 2b4-slotted; 2b5-drainage sheet; 3-drainage fan; 3a-first rotating roller; 3b-unidirectional spiral sheet; 3b1-first rubber strip; 3c-second rotating roller; 3d-impeller; 3e-first servo motor; 4-dividing plate; 4a-second rubber strip;-dividing plate driver; 5a-fixed ring; 5a1-ring gear; 5b-second servo motor; 5c-gear ; 6-Gas collection cover; 6a-Connecting pipe; 7-Humidity sensor.

Detailed ways

In order to further understand the features, technical means, and specific goals and functions of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 4 and Figure 5:

A drying device includes a body arranged between the area to be dehumidified and the atmosphere, a dehumidification part, a drying part, a drainage part and a material exchange unit are arranged in the body; The exchange unit is used to exchange the internal filling of the dehumidification part and the drying part, the drainage part is arranged between the dehumidification part and the drying part, the dehumidification part, the drainage part and the drying part are connected in sequence, and the drainage part is used to guide the airflow to self-dehumidify The drying part flows to the drying part, the dehumidifying part is communicated with the area to be dehumidified, and the drying part is communicated with the atmosphere.

Based on the above embodiment, when drying and dehumidifying the area to be dehumidified, the air in the dehumidification unit can be guided to flow to the drying unit through the drainage unit, so that the dehumidification unit generates negative pressure, which in turn can absorb the humid air in the area to be dehumidified. When the moisture of the dryer passes through the dehumidification part, the moisture is absorbed by the desiccant filled in it, thereby becoming dry air, and the dry air is guided through the drying part by the drainage part, and then discharged to the atmosphere;

When the desiccant in the dehumidifying part is saturated with moisture, the desiccant in the dehumidifying part and the drying part exchange positions through the material exchange unit, and the desiccant dried in the drying part moves to the dehumidifying part, so that the dehumidifying part always maintains the moisture absorption function, and the drying part For the drying treatment of the moist desiccant moved to the inside, the drying air can discharge the moisture generated by the carrying drying part to the atmosphere while drying, so as to facilitate the next exchange of desiccant between the dehumidifying part and the drying part.

Further, in order to solve the problem of how the body achieves drying, as shown in Figure 4 and Figure 5:

The body includes an outer cylinder 1, an inner cylinder 2 and a drainage fan 3, and the material exchange unit includes a partition plate 4 and a partition plate driver,

The outer cylinder 1 is coaxially arranged outside the inner cylinder 2, the two ends of the outer cylinder 1 and the inner cylinder 2 are closed, the inner circumference of the outer cylinder 1 and the outer circumference of the inner cylinder 2 form an annular chamber, and the outer cylinder 1 is evenly arranged along the circumferential direction There are a first air hole area 1a and a second air hole area 1b, the first air hole area 1a and the second air hole area 1b communicate with the annular chamber, the inner cylinder 2 is provided with a third air hole area 2a, the third air hole area The hole area 2a is located on the inner side of the first air hole area 1a, the inner cylinder 2 is also provided with a coaxial interlayer cavity 2b, and the outer peripheral surface of the interlayer cavity 2b is provided with a fourth air hole area 2b1 communicating with the annular chamber, The fourth air hole area 2b1 is located inside the second air hole area 1b. One end of the interlayer cavity 2b along its axial direction is provided with a communication port 2b2 that communicates with the inner cavity of the inner cylinder 2, and the interlayer cavity 2b is also provided with an electric heating sheet 2b3. ;

The drainage fan 3 is arranged in the inner cavity of the inner cylinder 2, and the drainage fan 3 is used to guide the air flow from the inner cavity of the inner cylinder 2 to the interlayer cavity 2b;

The partition plate 4 is arranged in the annular part to rotate in the circumferential direction, the partition plate 4 divides the annular chamber into a plurality of independent and exchangeable cavities, the desiccant is filled into the cavity, and the partition plate driver is arranged on the body It is connected with the dividing plate 4 in a driving manner, and the dividing plate driver is used to guide the dividing plate 4 to rotate in the circumferential direction in the annular chamber.

Based on the above embodiment, when the partition plate 4 is stationary in the annular chamber, the partition plate 4 divides the annular chamber into a dehumidifying part and a drying part, the inner circumference of the first air hole area 1a, the partition plate 4 and the The outer circumference of the three air hole area 2a constitutes the dehumidifying part filled with desiccant, while the inner circumference of the second air hole area 1b, the partition plate 4 and the outer circumference of the fourth air hole area 2b1 constitute the drying part filled with another desiccant department;

The main body is arranged between the area to be dehumidified and the atmosphere, so that the first air hole area 1a is communicated with the area to be dehumidified, and the second air hole area 1b is communicated with the atmosphere. When the drainage fan 3 is activated, the drainage fan 3 guides the airflow from the inside. The inner cavity of the cylinder 2 flows to the interlayer cavity 2b through the communication port 2b2, so that the inner cavity of the inner cylinder 2 generates a negative pressure, and the inner cavity of the inner cylinder 2 passes through the third air hole area 2a and the first air hole area 1a and the area to be dehumidified. and the third air hole area 2a and the first air hole area 1a are filled with desiccant, so that the air in the area to be dehumidified passes through the first air hole area 1a, the desiccant and the third air hole area 2a in sequence, During this process, the moist water vapor is absorbed by the desiccant, so that the drying air flow is guided into the interlayer cavity 2b through the drainage fan 3, and the interlayer cavity 2b is provided with an electric heating sheet 2b3, so that the electric heating sheet 2b3 heats the drying air flow, so that the heating The dry airflow passes through the fourth air hole area 2b1, the desiccant and the second air hole area 1b in turn, and is discharged into the atmosphere;

When the desiccant between the first air hole area 1a and the third air hole area 2a is saturated with water, its drying effect is weakened, and the partition plate driver is activated to drive the partition plate 4 to rotate in the circumferential direction in the annular chamber, Therefore, the desiccant originally located between the second air hole area 1b and the fourth air hole area 2b1 is moved to between the first air hole area 1a and the third air hole area 2a, thereby ensuring the first air hole area 1a and the third air hole area. The desiccant between the three air hole areas 2a is always in a dry state, and the desiccant saturated with water absorption moves between the second air hole area 1b and the fourth air hole area 2b1, and the heated drying airflow The desiccant saturated with water absorption is dried, so as to facilitate the next exchange of the desiccant in the dehumidification area and the drying section, thereby enabling continuous drying and ensuring the drying effect.

Further, the drainage fan 3 provided by the present application guides the drying airflow through 2a1, so that the drying speed of the desiccant close to the communication port 2b2 is slow, and the drying speed of the desiccant far from the communication port 2b2 is slow, and even cannot be completely dried. To solve this problem, as shown in Figure 6:

One end of the interlayer cavity 2b along its axial direction is provided with a slot 2b4, the slot 2b4 communicates with the area to be dehumidified, the slot 2b4 and the communication port 2b2 are located on the opposite side of the interlayer cavity 2b, and the slot diameter of the slot 2b4 is larger than that of the fourth fan. The hole diameter of the hole region 2b1.

Based on the above embodiment, a slot 2b4 is provided at one end of the interlayer cavity 2b, because the slot diameter of the slot 2b4 is larger than the aperture of the fourth air hole area 2b1, and the slot 2b4 and the communication port 2b2 are located on the opposite side of the interlayer cavity 2b, so that The airflow passing through the communication port 2b2 preferentially flows to the area to be dehumidified through the slot 2b4 in the axial direction. During the flow of the airflow in the interlayer cavity 2b, part of the gas passes through the fourth air hole area 2b1 and passes through the second air hole area 1b, so that the The desiccant between the second air hole area 1b and the fourth air hole area 2b1 can be uniformly dried, thereby improving drying efficiency.

Further, a slot 2b4 is provided at one end of the interlayer cavity 2b provided by the present application, so as to divide the dry air flow. Because there is a desiccant between the second air hole area 1b and the fourth air hole area 2b1, the divided air Only a small part of the air flow evenly passes through the fourth air hole area 2b1, so the desiccant cannot be quickly dried. In order to solve this problem, as shown in Figure 6:

The inner peripheral surface of the interlayer cavity 2b is provided with coaxial drainage sheets 2b5 at equal intervals, and the electric heating sheets 2b3 are coaxially arranged on the outer peripheral surface of the interlayer cavity 2b at equal intervals. The outer diameter of the heating sheet 2b3 is larger than the inner diameter of the heating sheet 2b3 and smaller than the outer diameter of the fourth air hole area 2b1, and the inner diameter of the heating sheet 2b3 is smaller than the inner diameter of the fourth air hole area 2b1.

Based on the above embodiment, by arranging the electric heating fins 2b3 coaxially on the outer peripheral surface of the interlayer cavity 2b at equal intervals, and disposing the guiding fins 2b5 interlaced with the electric heating fins 2b3 on the inner peripheral surface of the interlayer cavity 2b at equal intervals, due to the The outer diameter of 2b5 is larger than the inner diameter of the heating sheet 2b3 and smaller than the outer diameter of the fourth air hole area 2b1, and the inner diameter of the electric heating sheet 2b3 is smaller than the inner diameter of the fourth air hole area 2b1, so that the drying airflow must be along the axial direction of the outer cylinder 1, and Passing through the gap between the heating sheet 2b3 and the drain sheet 2b5 in a wave shape, the drying airflow is heated by the heating sheet 2b3 during the flow process, and the wavy drying airflow can impact the fourth air hole area 2b1 in the radial direction. During this process , part of the drying airflow passes through the fourth air hole area 2b1, the wet desiccant and the second air hole area 1b, so as to dry the wet desiccant, thereby improving the drying effect.

Further, as the first embodiment of the present application, in order to solve the problem of how the drainage fan 3 guides the airflow in the inner cavity of the inner cylinder 2 to flow to the interlayer cavity 2b, as shown in Figure 6:

The drainage fan 3 includes a first rotating roller 3a, a one-way helical blade 3b and a first servo motor 3e. The first rotating roller 3a is coaxially arranged in the inner cylinder 2, and the one-way helical blade 3b is coaxially arranged on the one-way helical blade. On the outer circumference of 3b, the first servo motor 3e is fixedly arranged on the outer ends of the outer cylinder 1 and the inner cylinder 2, and the output shaft of the first servo motor 3e is synchronously connected to the first rotating roller 3a for rotation.

Based on the above-mentioned embodiment, when drying, the first servo motor 3e is activated, and its output shaft drives the first rotating roller 3a to rotate coaxially in the inner cylinder 2, because the one-way helical blade 3b is coaxially arranged on the first rotating roller 3a. On the circumferential surface, the one-way helical sheet 3b rotates synchronously, so that the rotating one-way helical sheet 3b discharges the airflow in the inner cavity of the inner cylinder 2 into the fourth air hole area 2b1 through the upper communication port 2b2, so that the inner cylinder is discharged. 2. Negative pressure is generated in the inner cavity, which is convenient to guide the air flow in the area to be dehumidified to pass through the first air hole area 1a and the third air hole area 2a, and the rotating one-way helical blade 3b in the inner cavity of the inner cylinder 2 has a negative effect on the fourth air flow. The hole area 2b1 generates a uniform suction force, so that the airflow in the area to be dehumidified can pass through the first air hole area 1a uniformly, thereby improving drying efficiency.

Further, the present application makes the inner cavity of the inner cylinder 2 generate negative pressure through the rotating one-way helical sheet 3b, which still has the defect that the negative pressure is small and is not easy to drain. In order to solve this problem, as shown in Figure 6:

A first rubber strip 3b1 is provided on the outer edge of the one-way helical sheet 3b, and the first rubber strip 3b1 abuts against and cooperates with the inner wall of the inner cylinder 2 .

Based on the above embodiment, the first rubber strip 3b1 is arranged on the outer edge of the one-way helical sheet 3b, so that when the one-way helical sheet 3b rotates in the inner cylinder 2, the outer edge of the one-way helical sheet 3b and the inner wall of the inner cylinder 2 are reduced. Therefore, the negative pressure generated by the rotating one-way helical plate 3b can be larger, and the external air flow can be efficiently guided through the first air hole area 1a, the desiccant and the third air hole area 2a, and into the inner inside the barrel 2.

Further, as the second embodiment of the present application, in order to solve the problem of how the drainage fan 3 guides the airflow in the inner cavity of the inner cylinder 2 to flow to the interlayer cavity 2b, as shown in Figure 14:

The drainage fan 3 includes a second rotating roller 3c, an impeller 3d and a first servo motor 3e. The second rotating roller 3c is coaxially arranged in the inner cylinder 2, and the impeller 3d is coaxially arranged at one end of the first rotating roller 3a. 3d is located inside the communication port 2b2, the first servo motor 3e is fixedly arranged on the outside of the outer cylinder 1 and the inner cylinder 2, and the output shaft of the first servo motor 3e is synchronously connected to the second rotating roller 3c.

Based on the above-mentioned embodiment, when drying, the first servo motor 3e is activated, and its output shaft drives the second rotating roller 3c to rotate coaxially in the inner cylinder 2, and the impeller 3d is coaxially arranged at the other end of the second rotating roller 3c, And the second rotating roller 3c is located on the inner side of 2a2, so that the rotating impeller 3d can axially extract the drying airflow from the inner cavity of the inner cylinder 2, and discharge the drying airflow into the interlayer cavity 2b through the communication port 2b2 along its tangential direction. , so that a negative pressure is generated in the inner cavity of the inner cylinder 2, and it is convenient to guide the airflow in the area to be dehumidified to pass through the first air hole area 1a and the third air hole area 2a, and the rotating impeller 3d in the inner cavity of the inner cylinder 2 is opposite to the first air hole area 1a and the third air hole area 2a. The four-air-hole area 2b1 generates a uniform suction force, so that the airflow in the area to be dehumidified can pass through the first air-hole area 1a uniformly, thereby improving drying efficiency.

Further, the partition plate 4 provided by this application divides the annular chamber into a dehumidification part and a drying part, and there is a gap between the edge of the partition plate 4 and the inner circumference of the outer cylinder 1 and the outer circumference of the inner cylinder 2, and the dehumidification part and the drying part are prone to occur. In order to solve the defect of air flow exchange in the dry part, as shown in Figure 5:

Second rubber strips 4a are provided on both sides of the partition plate 4 along the axial direction of the outer cylinder 1 .

Based on the above embodiment, by arranging second rubber strips 4a on both sides of the partition plate 4 along the axial direction of the outer cylinder 1, the second rubber strips 4a on the outer side abut against the inner circumferential surface of the outer cylinder 1, so that the inner The second rubber strip 4a is in contact with the outer circumferential surface of the inner cylinder 2, thereby ensuring that the air flow of the dehumidifying part and the drying part cannot be exchanged, so as to ensure that the air flow can flow in a predetermined direction.

Further, in order to solve the problem of how the partition plate 4 rotates in the circumferential direction in the annular chamber, as shown in Figure 10:

The partition plate driver includes a fixed ring 5a, a second servo motor 5b and a gear 5c. The fixed ring 5a is coaxially arranged at both ends of the annular chamber. The partition plate 4 is circumferentially arranged between the two fixed rings 5a, and The outer end of the fixed ring 5a is provided with a gear ring 5a1 coaxially, the second servo motor 5b is fixedly arranged on the outer ends of the outer cylinder 1 and the inner cylinder 2, the output shaft of the second servo motor 5b is coaxially connected with the gear 5c, and the gear 5c Mesh with ring gear 5a1

Based on the above embodiment, when the desiccant of the dehumidifying part and the drying part needs to be exchanged, the second servo motor 5b is activated, and its output shaft drives the gear 5c to rotate coaxially, because the gear 5c meshes with the ring gear 5a1 and is fixed The ring 5a is coaxially arranged at both ends of the annular chamber, so that after the second servo motor 5b is activated, the fixed ring 5a can rotate synchronously in the annular chamber, and because the partition plate 4 is circumferentially arranged on the upper two fixed rings 5a, the partition plate 4 can be rotated in the circumferential direction in the annular chamber, so that the desiccant of the dehumidification part and the drying part can exchange positions, so that the desiccant of the dehumidification part always has dehumidification adsorption capacity.

As some optional embodiments of the present application, the body further includes a gas collecting hood 6, the gas collecting hood 6 is covered on the second air hole area 1b, and the gas collecting hood 6 is also provided with a connecting pipe 6a communicating with the atmosphere , thereby facilitating the centralized guidance of the airflow that passes through 2a1, the moist desiccant and the second air hole area 1b in turn to be discharged to the atmosphere.

As some optional embodiments of the present application, the body further includes a humidity sensor 7, the humidity sensor 7 is arranged at the communication port 2b2, the humidity sensor 7 is electrically connected with the controller, and the humidity sensor 7 can monitor the airflow in the inner cavity of the inner cylinder 2 in real time Humidity, when it is detected that the humidity of the airflow is relatively high, it means that the desiccant in the dehumidification part has reached a state of water absorption saturation, and then the controller controls the partition plate driver to work, so that the partition plate 4 connects the desiccant of the drying part with the dehumidification part. desiccant exchange position, so as to stably dehumidify.

A split power distribution cabinet with a drying device includes the drying device.

In the present application, a dehumidification part and a drying part are arranged in the main body, and the desiccant in the dehumidification part and the drying part is exchanged through a material exchange unit, so that the dehumidification part can be dehumidified stably and continuously, and the dried air can be passed through the drying part. Dry the wet desiccant in the zone, so that the desiccant is continuously exchanged between the dehumidifying part and the drying part.

The above examples only represent one or several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. a drying device, comprising the body that is arranged between the zone to be dehumidified and the atmosphere, it is characterized in that, the body is provided with a dehumidifying part, a drying part, a drainage part and a material exchange unit, the interior of the dehumidifying part and the drying part Filled with desiccant, the material exchange unit is used to exchange the internal filling of the dehumidification part and the drying part, the drainage part is arranged between the dehumidification part and the drying part, the dehumidification part, the drainage part and the drying part are connected in sequence, and the drainage part It is used to guide the airflow from the dehumidifying part to the drying part, the dehumidifying part is connected with the area to be dehumidified, and the drying part is connected with the atmosphere. 2. A drying device according to claim 1, characterized in that the body comprises an outer cylinder (1), an inner cylinder (2) and a drainage fan (3), and the material exchange unit comprises a partition plate (4) and a dividing plate (4). Bulkhead Drive, The outer cylinder (1) is coaxially arranged outside the inner cylinder (2), both ends of the outer cylinder (1) and the inner cylinder (2) are closed, and the inner circumference of the outer cylinder (1) and the outer circumference of the inner cylinder (2) form an annular shape In the chamber, a first air hole area (1a) and a second air hole area (1b), and a first air hole area (1a) and a second air hole area (1b) are uniformly arranged on the outer cylinder (1) along the circumferential direction. In communication with the annular chamber, the inner cylinder (2) is provided with a third air hole area (2a), the third air hole area (2a) is located on the inner side of the first air hole area (1a), and the inner cylinder (2) is also provided with a third air hole area (2a). An interlayer cavity (2b) coaxial with it is provided, and a fourth air hole area (2b1) communicated with the annular chamber is provided on the outer peripheral surface of the interlayer cavity (2b), and the fourth air hole area (2b1) is located in the second air hole. On the inner side of the hole area (1b), one end of the interlayer cavity (2b) along its axial direction is provided with a communication port (2b2) communicating with the inner cavity of the inner cylinder (2), and the interlayer cavity (2b) is also provided with an electric heating sheet ( 2b3); The drainage fan (3) is arranged in the inner cavity of the inner cylinder (2), and the drainage fan (3) is used to guide the air flow from the inner cavity of the inner cylinder (2) to the interlayer cavity (2b); The partition plate (4) is arranged in the annular part by rotating in the circumferential direction, the partition plate (4) divides the annular chamber into a plurality of cavities which are independent and can exchange positions, the desiccant is filled into the cavity, and the partition plate drives It is arranged on the main body and is in driving connection with the dividing plate (4), and the dividing plate driver is used for guiding the dividing plate (4) to rotate in the circumferential direction in the annular chamber. 3. A drying device according to claim 2, characterized in that, one end of the interlayer cavity (2b) along its axial direction is provided with a slot (2b4), and the slot (2b4) is communicated with the area to be dehumidified, and the slot is (2b4) and the communication port (2b2) are located on opposite sides of the interlayer cavity (2b), and the groove diameter of the slot (2b4) is larger than the diameter of the fourth air hole area (2b1). 4. A drying device according to claim 3, characterized in that, the inner peripheral surface of the interlayer cavity (2b) is provided with coaxial drainage sheets (2b5) at equal intervals, and the electric heating sheets (2b3) are equally spaced and coaxial. It is arranged on the outer peripheral surface of the interlayer cavity (2b), the drainage sheet (2b5) and the electric heating sheet (2b3) are staggered at equal distances, and the outer diameter of the drainage sheet (2b5) is larger than the inner diameter of the electric heating sheet (2b3) and smaller than the fourth air hole area. The outer diameter of (2b1) and the inner diameter of the heating sheet (2b3) are smaller than the inner diameter of the fourth air hole area (2b1). 5. A drying device according to claim 2, 3 or 4, characterized in that the drainage fan (3) comprises a first rotating roller (3a), a one-way screw (3b) and a first servo motor (3e) ), the first rotating roller (3a) is coaxially arranged in the inner cylinder (2), the one-way screw (3b) is coaxially arranged on the outer circumferential surface of the one-way screw (3b), and the first servo motor ( 3e) is fixedly arranged at the outer ends of the outer cylinder (1) and the inner cylinder (2), and the output shaft of the first servo motor (3e) is synchronously connected to the first rotating roller (3a). 6. A drying device according to claim 5, characterized in that the outer edge of the one-way helical sheet (3b) is provided with a first rubber strip (3b1), the first rubber strip (3b1) and the inner cylinder (2) ) abutting against the inner wall. 7. A drying device according to claim 2, 3 or 4, characterized in that the drainage fan (3) comprises a second rotating roller (3c), an impeller (3d) and a first servo motor (3e), and the first The second rotating roller (3c) is coaxially arranged in the inner cylinder (2), the impeller (3d) is coaxially arranged at one end of the first rotating roller (3a), and the impeller (3d) is located inside the communication port (2b2), The first servo motor (3e) is fixedly arranged on the outer side of the outer cylinder (1) and the inner cylinder (2), and the output shaft of the first servo motor (3e) is synchronously connected with the second rotating roller (3c). 8. A drying device according to claim 4, characterized in that, second rubber strips (4a) are provided on both sides of the partition plate (4) along the axial direction of the outer cylinder (1). 9. A drying device according to claim 2, characterized in that the partition plate driver comprises a fixed ring (5a), a second servo motor (5b) and a gear (5c), and the fixed ring (5a) rotates coaxially The partition plates (4) arranged at both ends of the annular chamber are arranged between the two fixing rings (5a) in the circumferential direction, and the outer end of the fixing ring (5a) is coaxially provided with a gear ring (5a1), and the second The servo motor (5b) is fixedly arranged on the outer ends of the outer cylinder (1) and the inner cylinder (2), the output shaft of the second servo motor (5b) is coaxially connected to the gear (5c), and the gear (5c) is connected to the ring gear ( 5a1) Meshing. 10. A split-type power distribution cabinet with a drying device, wherein the split-type power distribution cabinet comprises the drying device according to any one of claims 1-9.

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