Rotary drying chamber and drying air supply type power distribution cabinet

Abstract

The present application relates to a kind of rotary drying chamber and dry air supply type power distribution cabinet, belong to power grid power distribution cabinet technical field, solve the problem that existing technology is easily condensed in power distribution cabinet in power grid due to the difference of moisture absorption position, drying agent is easily caked, utilization efficiency is low, leading to.The present application includes drive unit, cover unit and drying unit, the drying unit is arranged in the cover unit, the cover unit and the drying unit are respectively connected with the drive unit;The drive unit is used to drive the drying unit to rotate, prevent the caking of drying agent in the drying unit.The drive unit of the present application can drive the drying unit to rotate, prevent the caking of drying agent in the drying unit, ensure drying effect;The turnover action makes the drying speed much faster than the drying agent layer of fixed setting, drying uniformity is better, and prevent saturated drying agent caking, the utilization rate of drying agent is obviously increased, improve the anti-condensation function of power distribution cabinet.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution cabinets, and particularly relates to a rotary drying chamber and a drying air supply type power distribution cabinet. BACKGROUND

[0002] In a high humidity environment, the internal insulation performance of the power distribution cabinet in the power grid is prone to decline, partial discharge and short circuit failure due to condensation, which seriously threatens the safe operation of the power distribution cabinet and its connection system. The mechanism of condensation is that when the surface temperature of the object inside the power distribution cabinet is lower than the dew point temperature of the surrounding air, the water vapor in the air will condense into liquid water on the surface, thereby causing condensation. There are mainly two methods to inhibit the condensation of the power distribution cabinet: one is to reduce the relative humidity of the air in the cabinet; the other is to avoid the surface temperature of the power distribution cabinet being lower than the dew point temperature. However, a high humidity environment can dramatically increase the risk of condensation, which can easily cause corrosion of metal parts and deterioration of material insulation in the power distribution cabinet, and even cause accidents such as pollution flashover.

[0003] The existing devices mainly realize the condensation inhibition of the power distribution cabinet through heating and dehumidification, semiconductor condensation, dry air replacement, and desiccant adsorption. The heating and dehumidification technology reduces the relative humidity by increasing the temperature in the cabinet, but there is still a risk of condensation in the case of low external environment and high humidity, and it is easy to cause overheating and even partial discharge. The semiconductor condensation technology reduces the temperature of the condensation surface metal plate by configuring semiconductor elements in the power distribution cabinet, but has low power, low efficiency, and difficulty in dealing with large spaces or external moisture penetration. The dry air replacement technology reduces the humidity of the power distribution cabinet by continuously inputting dry air, but the device for continuously transporting dry air source is large in size and is mainly used in power distribution rooms with a large number of power distribution cabinets. It also has the problems of space dead angle that cannot be covered and high energy consumption. The desiccant adsorption technology dehumidifies the air in the cabinet by placing desiccants, but the desiccants need to be replaced when they are saturated with moisture. In addition, the utilization efficiency of the desiccants is low due to the difference in moisture absorption position, which increases the maintenance cost of the equipment. SUMMARY

[0004] In view of the above problems of the prior art, the present application provides a rotary drying chamber and a drying air supply type power distribution cabinet. The present application is used to solve the problem that the desiccants are easy to agglomerate and have low utilization efficiency due to the difference in moisture absorption position, which causes the power distribution cabinet in the power grid to condense.

[0005] To achieve the above-mentioned application purposes, the technical solutions adopted by the present application are as follows:

[0006] A rotary drying chamber comprises a driving unit, a shell unit and a drying unit, the drying unit is arranged in the shell unit, the shell unit and the drying unit are connected with the driving unit respectively; water-containing air is dried by the drying unit in the shell unit, the driving unit is used for driving the drying unit to rotate, preventing the drying agent in the drying unit from caking, and ensuring the drying effect;

[0007] The drying unit comprises a center cylinder and a drying agent box, the drying agent box is arranged on the center cylinder, the center cylinder is fixedly connected with a motor shaft, and the drying agent box is used for containing drying agent; the driving unit drives the center cylinder and the drying agent box to rotate, the drying agent in the drying agent box is constantly turned over, the water-containing drying agent is transported to the lower layer, and the unused drying agent is transported to the upper layer.

[0008] Further, the driving unit comprises a motor body and a motor shaft, the motor body is fixedly connected with the shell unit, and the motor shaft is fixedly connected with the drying unit.

[0009] Further, the shell unit comprises a shell, an air inlet and an air outlet, the shell is a cylindrical shell, the motor body is fixedly connected with the shell, and the air inlet and the air outlet are arranged on the side wall of the shell respectively.

[0010] Further, the air inlet and the air outlet are arranged symmetrically with respect to the motor shaft.

[0011] Further, a filter screen is arranged on the air inlet, and the filter screen is used for filtering dust in the air.

[0012] Further, a sealing layer is arranged on the inner wall of the shell, and the sealing layer is used for filling the gap between the shell unit and the drying unit.

[0013] Further, the drying agent box is a cylindrical box body and is sleeved on the center cylinder.

[0014] Further, the drying agent box is arranged in multiple and is uniformly distributed along the circumference of the center cylinder.

[0015] Further, the drying unit further comprises a convex rib, and the convex rib is arranged on the outer wall of the center cylinder.

[0016] Further, an insertion slot is arranged on the outer wall of the drying agent box, and the convex rib can be inserted into the insertion slot, so that the drying agent box and the center cylinder can be inserted.

[0017] Further, the cross section of the convex rib is trapezoidal or T-shaped.

[0018] Further, the drying unit further comprises a locking assembly.

[0019] Further, the drying unit further comprises cover plates arranged on both sides of the desiccant box, the cover plates being used to close the sides of the desiccant box to prevent desiccant particles from leaking and forming a stable structural support together with the desiccant box and the central cylinder.

[0020] Further, the shell unit further comprises a large cabinet door and a small cabinet door, the large cabinet door being movably connected with the shell, and the small cabinet door being arranged on the large cabinet door.

[0021] The dry air supply type power distribution cabinet comprises the rotating drying chamber, and further comprises a power distribution cabinet body and a control unit, the shell unit and the control unit being arranged on the power distribution cabinet body.

[0022] Further, the control unit comprises a controller, a first air valve and a fan, the controller being electrically connected with the driving unit, the first air valve and the fan.

[0023] Further, the first air duct and the second air duct are further included, one end of the first air duct being connected with the air inlet of the shell unit, the other end of the first air duct being connected with the first air valve, the first air valve being used to control the opening and closing of the air inlet of the first air duct, one end of the second air duct being connected with the air outlet, and the other end of the second air duct being connected with the fan.

[0024] Further, the first air valve, the first air duct, the drying unit, the second air duct and the fan form a dry fresh air air path.

[0025] Further, the control unit further comprises a second air valve, the second air valve being arranged on the side wall of the first air duct, the second air valve, the first air duct, the drying unit, the second air duct and the fan forming a dry internal circulation air path.

[0026] Compared with the prior art, the present application can achieve at least one of the following beneficial effects:

[0027] (1) The driving unit of the present application can drive the drying unit to rotate, prevent the desiccant in the drying unit from caking, and ensure the drying effect; the overturning action makes the drying speed much faster than that of the fixedly arranged desiccant layer, the drying uniformity is better, the caking of saturated desiccant is prevented, the utilization rate of desiccant is obviously increased, and the anti-condensation function of the power distribution cabinet is enhanced;

[0028] (2) Compared with the single cylindrical desiccant box body, each miniaturized desiccant box of the present application is independent, the filling amount of desiccant is small, the distribution is thin, each box body can directly contact the water-containing air in different areas when rotating, the moisture can reach the core of the desiccant without long-distance diffusion, there is almost no "inactive dead angle", the adsorption speed of a single unit desiccant is faster than that of a single cylinder, and the adsorption is more efficient;

[0029] (3) The outer wall of the desiccator box is provided with a slot, and the convex rib can be inserted into the slot, so that the desiccator box and the center cylinder can be inserted; the cross section of the convex rib is trapezoidal or T-shaped, which prevents the desiccator box from being separated from the center cylinder in the radial direction;

[0030] (4) One end of the spring of the locking assembly is connected with the blocking rod, the other end of the spring is connected with the first blocking rod slot, and the spring is used for pushing the blocking rod to the direction of the desiccator box, so that the blocking rod protrudes from the convex rib, and then the desiccator box is blocked, preventing the desiccator box from being separated from the center cylinder in the axial direction;

[0031] (5) The dry air supply type power distribution cabinet comprises a dry fresh air air path, a dry internal circulation air path, a mixed dry air supply air path and a heating regeneration air path, various modes are switched, and the temperature and humidity in the cabinet are ensured to be always in a safe range.

[0032] In the present application, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the present application will be described in the subsequent content, and some advantages will become apparent from the description or by implementing the present application. The purpose and other advantages of the present application can be realized and obtained from the content specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of the rotary drying chamber of the present application Figure 1 .

[0034] Figure 2 is a schematic diagram of the overall structure of the drying unit of the rotary drying chamber.

[0035] Figure 3 is a schematic diagram of the exploded structure of the drying unit of the rotary drying chamber.

[0036] Figure 4 is a schematic diagram of the exploded structure of the locking assembly of the rotary drying chamber.

[0037] Figure 5 is a schematic diagram of the overall structure of the rotary drying chamber of the present application Figure 2 .

[0038] Figure 6 is a schematic diagram of the longitudinal section of the drying unit of the rotary drying chamber.

[0039] Figure 7 is a schematic diagram of the longitudinal section of the dry air supply type power distribution cabinet of the present application.

[0040] REFERENCE NUMERALS:

[0041] 1-driving unit; 2-housing unit; 3-drying unit; 4-power distribution cabinet body; 5-control unit; 6-first air duct; 7-second air duct; 11-motor body; 12-motor shaft; 13-fan; 21-housing; 22-air inlet; 23-air outlet; 24-large cabinet door; 25-small cabinet door; 31-center cylinder; 32-drying agent box; 33-rib; 34-latch assembly; 35-windshield; 36-cover plate; 37-electric heating cylinder; 38-conductive slip ring; 51-controller; 52-first air valve; 53-fan; 54-second air valve; 55-third air valve; 331-rib body; 332-first stop lever slot; 341-stop lever; 342-spring; 343-pull lever. DETAILED DESCRIPTION

[0042] The specific embodiments of the present application are described below to facilitate the understanding of the present application for those skilled in the art, but it should be clear that the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, any changes within the spirit and scope of the present application defined and determined by the appended claims are obvious, and all the inventions utilizing the concept of the present application are within the scope of protection.

[0043] Example 1

[0044] As shown in Figure 1 and Figure 2 , a rotary drying chamber, comprising a driving unit 1, a housing unit 2 and a drying unit 3, the drying unit 3 is arranged in the housing unit 2, the housing unit 2 and the drying unit 3 are connected with the driving unit 1 respectively, the water-containing air is dried by the drying unit 3 in the housing unit 2, the driving unit 1 is used to drive the drying unit 3 to rotate, prevent the drying agent in the drying unit 3 from caking, and ensure the drying effect.

[0045] Specifically, as shown in Figure 2 , the driving unit 1 is a motor, comprising a motor body 11 and a motor shaft 12, the motor body 11 is fixedly connected with the housing unit 2, and the motor shaft 12 is fixedly connected with the drying unit 3. The motor body 11 drives the drying unit 3 to rotate in the housing unit 2 through the motor shaft 12.

[0046] Preferably, the driving unit 1 further comprises a fan 13, the fan 13 is arranged on the motor body 11, the fan 13 is coaxially connected with the motor body 11 and is driven to rotate by the motor, and is used to cool the motor body 11.

[0047] Specifically, as shown in Figure 1 , the housing unit 2 comprises a housing 21, an air inlet 22 and an air outlet 23, the housing 21 is a cylindrical housing, the motor body 11 is fixedly connected with the housing 21, and the air inlet 22 and the air outlet 23 are arranged on the side wall of the housing 21 respectively.

[0048] Preferably, the air inlet 22 and the air outlet 23 are symmetrically arranged relative to the motor shaft 12, so that a longest air duct is formed in the shell 21, achieving the purpose of fully drying the water-containing air.

[0049] Preferably, a filter screen (not shown in the figure) is arranged on the air inlet 22, which is used to filter dust in the air. A sealing layer is arranged on the inner wall of the shell 21, which is used to fill the gap between the casing unit 2 and the drying unit 3, preventing the water-containing air from leaking through the gap between the casing unit 2 and the drying unit 3. The sealing layer is a foam rubber layer or a felt layer.

[0050] Preferably, as shown in Figure 3 The drying unit 3 includes a central cylinder 31 and a desiccant box 32, the desiccant box 32 is arranged on the central cylinder 31, the central cylinder 31 is fixedly connected with the motor shaft 12, and the desiccant box 32 is used to contain the desiccant.

[0051] In some optional embodiments, the desiccant box 32 is a cylindrical box body and is sleeved on the central cylinder 31. The water-containing air is dried by the desiccant box 32, the driving unit 1 drives the central cylinder 31 and the desiccant box 32 to rotate, the desiccant in the desiccant box 32 is constantly turned over, the water-containing desiccant is transported to the lower layer, and the unused desiccant is transported to the upper layer. Compared with the fixedly arranged desiccant layer in the prior art, the turning action makes the drying speed much faster than the fixedly arranged desiccant layer, the drying uniformity is better, the saturation of the desiccant is prevented from being blocked, the utilization rate of the desiccant is obviously increased, and the condensation prevention function of the power distribution cabinet is enhanced.

[0052] In some optional embodiments, the desiccant box 32 is arranged in multiple numbers and is uniformly distributed along the circumference of the central cylinder 31, and the desiccant box 32 is a box body with a fan-shaped longitudinal section. Compared with a single cylindrical desiccant box body, each miniaturized desiccant box 32 is independent, the desiccant filling amount is small and the distribution is thin, each box body can directly contact the water-containing air in different areas when rotating, the moisture can reach the core of the desiccant without long-distance diffusion, there is almost no “non-activated dead angle”, the adsorption speed of a single unit desiccant is faster than that of a single cylinder, and the adsorption is more efficient.

[0053] Preferably, in order to facilitate the disassembly and assembly of the desiccant box 32 and the central cylinder 31, the drying unit 3 further includes a convex rib 33 arranged on the outer wall of the central cylinder 31. The outer wall of the desiccant box 32 is provided with a slot, and the convex rib 33 can be inserted into the slot, so that the desiccant box 32 and the central cylinder 31 can be inserted and connected. The cross section of the convex rib 33 is trapezoidal or T-shaped, which prevents the desiccant box 32 from being separated from the central cylinder 31 in the radial direction.

[0054] Preferably, in order to prevent the desiccant box 32 from being separated from the central cylinder 31 in the axial direction, the drying unit 3 further includes a locking assembly 34.

[0055] In some alternative embodiments, the locking assembly 34 is a bolt, the end face of the protrusion 33 is provided with a threaded groove, the bolt is connected with the threaded groove, and the nut part of the bolt can shield the desiccant box 32 to prevent the desiccant box 32 from being axially separated from the central cylinder 31.

[0056] The bolt needs to be screwed by a special tool and is easy to be lost. In some alternative embodiments, as shown in FIG. 6, the protrusion 33 includes a ridge body 331 and a first stopper groove 332, the first stopper groove 332 is arranged on the end face of the ridge body 331, and the first stopper groove 332 is a T-shaped groove. Figure 4 The locking assembly 34 includes a stopper 341 and a spring 342, the stopper 341 can be inserted into the first stopper groove 332 and can slide in the first stopper groove 332, and the T-shaped first stopper groove 332 can prevent the stopper 341 from being separated from the first stopper groove 332. One end of the spring 342 is connected with the stopper 341, the other end of the spring 342 is connected with the first stopper groove 332, and the spring 342 is used to push the stopper 341 in the direction of the desiccant box 32, so that the stopper 341 protrudes from the protrusion 33 and shields the desiccant box 32 to prevent the desiccant box 32 from being axially separated from the central cylinder 31.

[0057] Preferably, the locking assembly 34 further includes a lever 343, the lever 343 is connected with the stopper 341 and partially extends out of the first stopper groove 332, so as to manually push the stopper 341 to overcome the elastic force of the spring 342 and retract, thereby unshielding the desiccant box 32 and realizing quick disassembly and assembly. The outer end of the lever 343 is provided with an anti-skid pattern to improve the operation feeling and reliability. After the desiccant box 32 is inserted into place, the spring 342 is automatically reset and pushes the stopper 341 to extend, thereby completing locking and ensuring stable connection during operation to avoid loosening due to vibration.

[0058] Preferably, as shown in FIG. 7, the desiccation unit 3 further includes a baffle 35, the baffle 35 is arranged at the end of the desiccant box 32 and is used to guide airflow to pass through the adsorption area of the desiccant box 32, increase the contact area between the desiccant box 32 and the sealing layer, enhance the sealing effect, prevent airflow from being short-circuited, and improve the drying efficiency. Figure 3 Preferably, the desiccation unit 3 further includes a cover plate 36, the cover plate 36 is arranged on both sides of the desiccant box 32 and is used to close the side face of the desiccant box 32 to prevent desiccant particles from leaking and form stable structural support together with the desiccant box 32 and the central cylinder 31. The inner side of the cover plate 36 is provided with a buckle structure which can be clamped and fixed with the grooves on both sides of the desiccant box 32, so as to be convenient and reliable in disassembly and assembly. The surface is provided with air holes to ensure that airflow uniformly passes through the desiccant layer and blocks the desiccant from overflowing.

[0059] Preferably, as shown in FIG. 8, the desiccation unit 3 further includes a sealing layer 37, the sealing layer 37 is arranged on the outer wall of the central cylinder 31 and is used to seal the gap between the desiccant box 32 and the central cylinder 31 to prevent air leakage and improve the sealing effect.

[0060] Figure 5 ​As shown, to facilitate the replacement of the desiccant box 32, the housing unit 2 also includes a large cabinet door 24 and a small cabinet door 25. The large cabinet door 24 is movably connected to the housing 21 and can be opened by rotating around a hinge, facilitating the maintenance and replacement of the drying unit 3. The small cabinet door 25 is located on the large cabinet door 24 and can be opened independently, facilitating daily inspection or replacement of individual desiccant boxes 32 without opening the large cabinet door 24, thus improving operational convenience. Both the large cabinet door 24 and the small cabinet door 25 have sealing strips on their edges to effectively prevent gas leakage and ensure the airtightness of the equipment during operation.

[0061] Compared to existing technologies, the driving unit 1 in this embodiment can drive the drying unit 3 to rotate, preventing the desiccant inside the drying unit 3 from clumping and ensuring the drying effect. The flipping action makes the drying speed much faster than a fixed desiccant layer, resulting in better drying uniformity and preventing saturated desiccant from clumping. The utilization rate of the desiccant is significantly increased, enhancing the anti-condensation function of the distribution cabinet. Compared to a single cylindrical desiccant box, each miniaturized desiccant box 32 is independent, with a small amount of desiccant filling and a thin distribution. When rotating, each box can directly contact the humid air in different areas, allowing moisture to reach the core of the desiccant without long-distance diffusion, resulting in almost no "unfilled" desiccant. "Activate dead angles" means that the adsorption speed of a single desiccant unit is faster than that of a single cylinder, resulting in more efficient adsorption. The outer wall of the desiccant box 32 is provided with a slot, and the protrusion 33 can be inserted into the slot, so that the desiccant box 32 can be connected to the central cylinder 31. The cross-section of the protrusion 33 is trapezoidal or T-shaped to prevent the desiccant box 32 from radially detaching from the central cylinder 31. One end of the spring 342 is connected to the stop rod 341, and the other end of the spring 342 is connected to the first stop rod groove 332. The spring 342 is used to push the stop rod 341 in the direction of the desiccant box 32, so that the stop rod 341 protrudes from the protrusion 33, thereby blocking the desiccant box 32 and preventing the desiccant box 32 from axially detaching from the central cylinder 31.

[0062] Example 2:

[0063] In order to regenerate the desiccant, such as Figure 6 As shown, in Example 2, a heating component is added to Example 1. The heating component is located inside the central cylinder 31 and is used to heat and regenerate the desiccant in the desiccant box 32. This eliminates the need to disassemble and replace the entire desiccant box, greatly improving maintenance efficiency.

[0064] Specifically, the heating assembly includes an electric heating cylinder 37 and a conductive slip ring 38. The electric heating cylinder 37 is fitted inside the central cylinder 31 and can transfer heat to the desiccant box 32. The conductive slip ring 38 is located at the end of the central cylinder 31 and is used to achieve power connection in the rotating state to ensure that the electric heating cylinder 37 is continuously and stably powered.

[0065] Example 3:

[0066] This embodiment discloses a drying air-supply type power distribution cabinet, such asFigure 7 As shown, the drive unit 1, the casing unit 2 and the drying unit 3 of the embodiments 1 or 2 are further provided with a switch cabinet body 4 and a control unit 5, and the casing unit 2 and the control unit 5 are arranged on the switch cabinet body 4.

[0067] Preferably, the control unit 5 comprises a controller 51, a first air valve 52 and a fan 53, and the controller 51 is electrically connected with the drive unit 1, the first air valve 52 and the fan 53.

[0068] Preferably, the switch cabinet further comprises a first air duct 6 and a second air duct 7, one end of the first air duct 6 is communicated with the air inlet 22 of the casing unit 2, the other end of the first air duct 6 is communicated with the first air valve 52, and the other end is an air inlet end, and the first air valve 52 controls the opening and closing of the air inlet end of the first air duct 6; one end of the second air duct 7 is connected with the air outlet 23, and the other end of the second air duct 7 is connected with the fan 53, and when the fan 53 works, external air is introduced into the switch cabinet body 4 through the first air duct 6, and the moisture in the air is adsorbed when passing through the drying unit 3, and the dried air is sent out by the second air duct 7 and enters the inside of the switch cabinet body 4, effectively preventing the generation of condensation and ensuring the safe operation of electrical components. The first air valve 52, the first air duct 6, the drying unit 3, the second air duct 7 and the fan 53 constitute a drying fresh air path, and a drying fresh air mode is realized.

[0069] Preferably, the control unit 5 further comprises a second air valve 54, and the second air valve 54 is arranged on the side wall of the first air duct 6 and is used for connecting the internal circulating air path, when the environmental humidity is low or external air is not needed to be introduced, the second air valve 54 is opened, the internal air of the switch cabinet body 4 is circulated through the first air duct 6 and the drying unit 3 to form an internal circulation, and the internal air is continuously dehumidified to avoid the accumulation of moisture. The second air valve 54, the first air duct 6, the drying unit 3, the second air duct 7 and the fan 53 constitute a drying internal circulation air path, and a drying internal circulation mode is realized.

[0070] Preferably, if the first air valve 52 and the second air valve 54 are opened at the same time, the external fresh air and the internal circulating air can enter the drying unit 3 at the same time to be dehumidified, and the drying fresh air path and the drying internal circulation air path jointly constitute a mixed drying air supply path, and a mixed drying air supply mode is realized.

[0071] Preferably, the control unit 5 further comprises a third air valve 55, and the third air valve 55 is arranged on the side wall of the top of the switch cabinet body 4 and is used for discharging excess moisture or high-temperature gas in the switch cabinet.

[0072] Preferably, the fan 53 is a reversible fan capable of switching the air supply or exhaust direction according to the control instruction. When the fan 53 rotates forward, dry air is supplied into the power distribution cabinet to realize internal circulation or fresh air mode. When the external air humidity is low, the heating assembly of embodiment 2 is turned on, and the fan 53 reverses to form a heating regeneration air path, blows the air inside the power distribution cabinet body 4 to the drying unit 3, and performs hot air regeneration on the drying unit 3 to discharge the absorbed moisture and restore the dehumidification capacity. The controller 51 controls the opening and closing of each air valve and the rotation direction of the fan to realize the switching of fresh air, internal circulation, mixed air supply and regeneration modes, and ensure that the temperature and humidity in the cabinet are always within the safe range.

[0073] Compared with the prior art, the drying air supply type power distribution cabinet of the embodiment includes a drying fresh air path, a drying internal circulation air path, a mixed drying air supply air path and a heating regeneration air path, multiple modes are switched to ensure that the temperature and humidity in the cabinet are always within the safe range.

[0074] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any changes or replacements within the technical range disclosed by the present application can be easily thought of by those skilled in the art, and should be covered within the protection scope of the present application.

Claims

1. A rotary drying chamber, characterized in that, It includes a drive unit (1), a housing unit (2), and a drying unit (3). The drying unit (3) is disposed in the housing unit (2). The housing unit (2) and the drying unit (3) are respectively connected to the drive unit (1). Water-containing air is dried by the drying unit (3) inside the housing unit (2). The drive unit (1) is used to drive the drying unit (3) to rotate, preventing the desiccant inside the drying unit (3) from clumping and ensuring the drying effect. The drying unit (3) includes a central cylinder (31), a desiccant box (32), a protruding rib (33), a locking assembly (34), an electric heating cylinder (37), and a conductive slip ring (38). The desiccant box (32) is disposed on the central cylinder (31), and the central cylinder (31) is fixedly connected to the motor shaft (12). The desiccant box (32) is used to hold desiccant. The driving unit (1) drives the central cylinder (31) and the desiccant box (32) to rotate. The desiccant in the desiccant box (32) is continuously turned over. The desiccant containing water is transferred to the lower layer, and the unused desiccant is transferred to the upper layer. The electric heating cylinder (37) is sleeved inside the central cylinder (31) and can transfer heat to the desiccant box (32). The conductive slip ring (38) is disposed at the end of the central cylinder (31). The protruding ridge (33) includes a prism (331) and a first stop groove (332), the first stop groove (332) being disposed on the end face of the prism (331); the locking assembly (34) includes a stop bar (341) and a spring (342), the stop bar (341) being able to insert into the first stop groove (332) and being able to slide along the first stop groove (332) within the first stop groove (332), the first stop groove (332) being able to prevent the stop bar (341) from disengaging from the first stop groove (332); one end of the spring (342) is connected to the stop bar (341), the other end of the spring (342) is connected to the first stop groove (332), the spring (342) being used to push the stop bar (341) toward the desiccant box (32), so that the stop bar (341) protrudes from the protruding ridge (33), thereby blocking the desiccant box (32); The protruding rib (33) is provided on the outer wall of the central cylinder (31); the outer wall of the desiccant box (32) is provided with a slot, and the protruding rib (33) can be inserted into the slot, so that the desiccant box (32) and the central cylinder (31) can be connected; the cross section of the protruding rib (33) is trapezoidal or T-shaped.

2. The rotary drying chamber according to claim 1, characterized in that, The desiccant box (32) is a cylindrical box and is fitted onto the central cylinder (31).

3. The rotary drying chamber according to claim 1, characterized in that, The desiccant boxes (32) are configured in multiple ways and are evenly distributed around the central cylinder (31).

4. The rotary drying chamber according to claim 1, characterized in that, The housing unit (2) includes a housing (21), an air inlet (22) and an air outlet (23). The housing (21) is a cylindrical housing. The motor body (11) of the drive unit (1) is fixedly connected to the housing (21). The air inlet (22) and the air outlet (23) are respectively disposed on the side wall of the housing (21).

5. The rotary drying chamber according to claim 4, characterized in that, The air inlet (22) is equipped with a filter screen, which is used to filter dust in the air.

6. The rotary drying chamber according to claim 4, characterized in that, The inner wall of the housing (21) is provided with a sealing layer, which is used to fill the gap between the cover unit (2) and the drying unit (3).

7. The rotary drying chamber according to claim 1, characterized in that, The drying unit (3) also includes a cover plate (36), which is disposed on both sides of the desiccant box (32). The cover plate (36) is used to close the sides of the desiccant box (32) to prevent desiccant particles from leaking.

8. A drying-type air-supply distribution cabinet, characterized in that, The rotary drying chamber according to any one of claims 1-7 further includes a power distribution cabinet body (4) and a control unit (5), wherein the cover unit (2) and the control unit (5) are both disposed on the power distribution cabinet body (4).

9. The drying air-supply type power distribution cabinet according to claim 8, characterized in that, The control unit (5) includes a controller (51), a first air valve (52) and a fan (53), and the controller (51) is electrically connected to the drive unit (1), the first air valve (52) and the fan (53).

10. The drying air-supply type power distribution cabinet according to claim 9, characterized in that, It also includes a first air duct (6) and a second air duct (7). One end of the first air duct (6) is connected to the air inlet (22) of the cover unit (2), and the other end of the first air duct (6) is connected to the first air valve (52). The first air valve (52) controls the opening and closing of the air inlet end of the first air duct (6). One end of the second air duct (7) is connected to the air outlet (23), and the other end of the second air duct (7) is connected to the fan (53).

11. The drying air-supply type power distribution cabinet according to claim 10, characterized in that, The first air valve (52), the first air duct (6), the drying unit (3), the second air duct (7) and the fan (53) constitute the drying fresh air path.

12. The drying air-supply type power distribution cabinet according to claim 10, characterized in that, The control unit (5) also includes a second air valve (54), which is located on the side wall of the first air duct (6); the second air valve (54), the first air duct (6), the drying unit (3), the second air duct (7) and the fan (53) constitute the drying internal circulation air path.

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