An ultra-small rotary dehumidifier for power ring network cabinets

Abstract

The present invention discloses an ultra-small rotary dehumidifier for an electric power ring network cabinet, comprising a ring network cabinet body, a secondary chamber body, a length-adjustable mounting plate, an air supply channel, an air return channel, an exhaust channel, and an ultra-small rotary dehumidifier body, which are used in combination with each other to play a role. The main boards are adjustably connected by bolts, and when working, the main boards are staggered and connected through the holes between the main boards to achieve the purpose of adjustability, thereby solving the problem of decondensation in the secondary chamber body and the mechanism bin, and adopting an external dehumidification and dehumidification device, which can realize non-stop maintenance of the equipment, slow down the rusting speed of the ring network cabinet switch mechanism, solve the problem of malfunction of the ring network cabinet due to condensation, and improve the power supply reliability of the distribution network; the adjustable connecting plate realizes the adjustable connection of the gap between the upper and lower sheet metal air ducts through the waist-shaped groove, and can be equipped with wheels of different thicknesses.

Description

Technical Field

[0001] The present invention relates to the field of dehumidification, and in particular to an ultra-small rotary dehumidifier for a power ring network cabinet. Background Art

[0002] A ring network refers to a circular distribution network, where the power supply trunk lines form a closed loop. Power is supplied to this ring trunk line, and then distributed from the trunk line to the outside through high-voltage switches. The advantage of this is that each distribution branch can draw power from both the trunk line to its left and the trunk line to its right. If the left trunk line fails, it will continue to receive power from the right trunk line, and if the right trunk line fails, it will continue to receive power from the left trunk line. In this way, although the total power supply is a single-line supply, each distribution branch benefits from a dual-line power supply, thereby improving power supply reliability.

[0003] However, condensation in ring main units (RMUs) is a thorny issue in the operation and maintenance of distribution networks. It is more common in areas with well-developed water systems, abundant rainfall, and distinct four seasons, such as Jiangsu, Zhejiang, and Shanghai. Condensation can not only lead to misconnection of the terminal blocks in the secondary compartment of the RMU, causing tripping accidents, but can also corrode the switching mechanism of the RMU, causing the actual service life of the equipment to be far less than the designed life.

[0004] For example, Chinese patent publication number CN111342365A discloses a ring main unit (RMU) anti-condensation device, comprising a power distribution room, a RMU, a rotary dehumidifier, a pressure regulator, a monitor, a delivery pipe, a first connecting pipe, and a second connecting pipe. The RMU is provided with multiple RMUs, one of which is placed in the power distribution room. A bolted rotary dehumidifier is installed in the power distribution room. The outlet pipe of the rotary dehumidifier is connected to the pressure regulator, which discharges moisture from the air outside the power distribution room. The monitor is fixed to the wall of the power distribution room with screws. The monitor, rotary dehumidifier, and pressure regulator are all connected to a control computer via Ethernet. The control computer controls the rotary dehumidifier and pressure regulator based on information from the monitor. The pressure regulator is provided with a threaded delivery pipe. Both the second and first connecting pipes are connected to the delivery pipe via a three-way valve. The first connecting pipe extends into the RMU. The present invention is rationally designed; the rotary dehumidifier can separate and discharge moisture from the air.

[0005] Another example is a Chinese patent with publication number CN210142869U, which discloses a gas-insulated fully enclosed ring network cabinet. Its technical solution is as follows: a plurality of springs are fixedly connected to the top of the base, a ring network cabinet body is provided on the top of the springs, sliders are fixedly connected on both sides of the ring network cabinet body, two hanging rings are fixedly connected to the top of the ring network cabinet body, a first support plate is fixedly connected to one end of the top of the base, and a second support plate is fixedly connected to the other end of the top of the base. The utility model provides a slider and a slide groove, rotates the turntable and the wheel, so that the wire rope is wound around the wheel, thereby pulling the ring network cabinet body, so that the ring network cabinet body rises as a whole. When it rises to the appropriate position, the support rod in the handle can be pushed inward into the slot of the second support plate, thereby completing the fixing of the ring network cabinet body, effectively avoiding the situation where the ring network cabinet is soaked in water for a long time due to excessive water accumulation, and greatly improving the safety of the ring network cabinet.

[0006] For example, the Chinese patent with publication number CN112886398A discloses an external ring main unit dehumidification and anti-condensation device. The ring main unit is equipped with an integrated box, a rotary dehumidification device, a dehumidification controller, and a photovoltaic power generation device. The rotary dehumidification device includes a rotary dehumidifier, a dehumidification system air intake duct, a dehumidification system exhaust duct and a valve. The photovoltaic power generation device includes a photovoltaic panel, a photovoltaic controller, a photovoltaic inverter, and a battery pack. The dehumidification controller includes an integrated humidity sensor, a keyboard circuit, and a drive circuit. The integrated box is fixed to the side beam of the ring main unit through a detachable steel bracket. The dehumidification controller in the external integrated box of the present invention outputs a signal to the external rotary dehumidifier for dehumidification based on the humidity information obtained through feedback, and the external photovoltaic power generation device provides an independent power supply for the dehumidifier. Provided is an external rotary dehumidification method and device that is easy to operate and maintain, has independent power supply, and is controlled by a microcontroller.

[0007] In summary, the existing dehumidification and dehumidification devices of ring network cabinets have many disadvantages, which are summarized as follows:

[0008] ① Condensation in the ring main unit will not only cause misconnection of the secondary terminal block of the ring main unit and cause a tripping accident, but will also corrode the switch mechanism of the ring main unit, causing the actual service life of the equipment to be far less than the designed life;

[0009] ② The current cooling and dew removal device cannot adapt to wheels of different thicknesses;

[0010] ③ It is also impossible to collect temperature data in real time, and automatically stop the heater when the desorption temperature is exceeded to achieve energy-saving dehumidification. Summary of the Invention

[0011] In view of the deficiencies in the prior art, the present invention provides an ultra-small rotary dehumidifier for a power ring network cabinet to solve the above problems.

[0012] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0013] An ultra-small rotary dehumidifier for an electric power ring network cabinet comprises a ring network cabinet body, a secondary chamber body, a length-adjustable mounting plate, an air supply duct, a return air duct, an exhaust duct, and an ultra-small rotary dehumidifier body. The length-adjustable mounting plate comprises two main boards, one of which is fixed to the secondary chamber body and the other is fixed to the ultra-small rotary dehumidifier body. The two main boards are adjustably connected, and both the air supply duct and the return air duct are connected to the ultra-small rotary dehumidifier body.

[0014] Preferably, the main boards are adjustably connected via bolts.

[0015] Preferably, the main body of the ultra-small rotary dehumidifier includes an air volume adjustable heating device, an exhaust port, a return air port, an air supply port, a fresh air port, a temperature and humidity sensor, a controller, a stepper motor reducer group, a polymer rotor, an adjustable connecting plate, a sheet metal air duct, a duct fan, a dew removal heater, a ballast plate, and a perforated rib plate.

[0016] The exhaust vent, return air vent, supply air vent and fresh air vent are arranged on the same side of the sheet metal air duct;

[0017] The duct fan, controller, stepper motor reducer assembly and dew removal heater are arranged inside the sheet metal air duct;

[0018] The sheet metal air duct is provided with an upper and a lower layer;

[0019] The adjustable connecting plate is arranged between the upper and lower layers of sheet metal air ducts, and a waist-shaped groove is provided on the adjustable connecting plate. The adjustable connecting plate connects the sheet metal air ducts, which solves the decondensation problem of the secondary chamber and the mechanism compartment of the ring network cabinet, and adopts an external dehumidification and dehumidification device to realize non-stop maintenance of the equipment, slow down the rusting rate of the switch mechanism of the ring network cabinet, solve the problem of malfunction of the ring network cabinet due to condensation, and improve the power supply reliability of the distribution network. The adjustable connecting plate realizes adjustable connection of the gap between the upper and lower sheet metal air ducts through the waist-shaped groove, and can be equipped with wheels of different thicknesses. The air volume adjustable heating device is connected to the return air channel, which can provide heated air of different temperatures and different air volumes for the wheel adsorption of the device. The controller is connected to the temperature and humidity sensor, the stepper motor reducer group, and the dew removal heater. The controller can detect the temperature and humidity data in the cabinet and intelligently match the optimal speed of the wheel.

[0020] Preferably, the air volume adjustable heating device is connected to the return air channel and is arranged in the secondary chamber box 2000, and the controller is connected to the temperature and humidity sensor, the stepping motor reducer group, and the dew removal heater.

[0021] Preferably, the perforated rib plate is arranged in the sheet metal air duct, and the perforated rib plate is evenly distributed with a plurality of small holes.

[0022] Preferably, the ballast plate is arranged at the rear end of the dew removal heater in the sheet metal air duct, and a gap is left between the ballast plate and the heater.

[0023] Preferably, the ballast plate is densely covered with ventilation holes.

[0024] Preferably, the adjustable air volume heating device includes an air volume heater, an air volume temperature sensor, an air volume temperature controller, and a box body. The air volume temperature sensor is inserted into the box body and connected to the air volume temperature controller. The air volume temperature controller is fixed on one side of the box body, and the air volume heater is fixed on the front end of the box body.

[0025] Preferably, both the dew removal heater and the air volume heater are PTC heaters, and the air volume heater is provided with a fan.

[0026] Preferably, one end of the air supply channel is connected to the air supply port and the other end is connected to the secondary chamber box body, one end of the return air channel is connected to the return air port and the other end is connected to the secondary chamber box body, and one end of the exhaust channel is connected to the exhaust port and the other end is connected to the secondary chamber box body.

[0027] Compared with the prior art, the present invention discloses an ultra-small rotary dehumidifier for a power ring network cabinet, comprising a ring network cabinet body, a secondary chamber body, a length-adjustable mounting plate, an air supply channel, a return air channel, an exhaust channel, and an ultra-small rotary dehumidifier body, which are used in combination with each other to function. The main boards are connected in an adjustable manner by bolts, and when working, the main boards are staggered and connected through the holes between the main boards to achieve the purpose of adjustment.

[0028] ① The condensation removal problem of the secondary chamber box and the mechanism compartment is solved, and the external dehumidification and dehumidification device is used to achieve non-stop maintenance of the equipment, slow down the corrosion rate of the ring network cabinet switch mechanism, solve the problem of malfunction of the ring network cabinet due to condensation, and improve the power supply reliability of the distribution network;

[0029] ② The adjustable connecting plate is connected through the waist-shaped groove to achieve adjustable gap connection between the upper and lower sheet metal air ducts, and can be equipped with runners of different thicknesses;

[0030] ③The air volume adjustable heating device is connected to the return air outlet, which can provide heated air with different temperatures and air volumes for the device's rotor adsorption;

[0031] ④The controller is connected to the temperature and humidity sensor, the stepper motor reducer group, and the dew removal heater. The controller can detect the temperature and humidity data inside the cabinet and intelligently match the optimal speed of the wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1This is a schematic structural diagram of an ultra-small rotary dehumidifier for a power ring network cabinet according to the present invention;

[0033] Figure 2 This is a schematic structural diagram of the main body of the ultra-small rotary dehumidifier of the present invention;

[0034] Figure 3 This is a schematic structural diagram of the main body of the ultra-small rotary dehumidifier of the present invention;

[0035] Figure 4 This is a schematic structural diagram of the main body of the ultra-small rotary dehumidifier of the present invention;

[0036] Figure 5 This is a schematic structural diagram of the main body of the ultra-small rotary dehumidifier of the present invention;

[0037] Figure 6 This is a schematic structural diagram of the main body of the ultra-small rotary dehumidifier of the present invention;

[0038] Figure 7 This is a structural schematic diagram of the air volume adjustable heating device of the present invention. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] A super-small rotary dehumidifier for an electric power ring network cabinet comprises a ring network cabinet body 1000, a secondary chamber body 2000, a length-adjustable mounting plate 3000, an air supply duct 4000, a return air duct 5000, an exhaust duct 6000, and a super-small rotary dehumidifier body 7000. The length-adjustable mounting plate comprises a main board, two main boards are provided, one of which is fixed on the secondary chamber body 2000, and the other is fixed on the super-small rotary dehumidifier body 7000. The two main boards are adjustably connected. The air supply duct 4000 and the return air duct 5000 are both connected to the super-small rotary dehumidifier body 7000. The main boards are adjustably connected by bolts. During operation, the main boards are staggered and connected through the holes between the main boards to achieve the purpose of adjustment.

[0041] The ultra-small rotary dehumidifier body 7000 includes an air volume adjustable heating device 1, an exhaust port 2, a return air port 3, an air supply port 4, a fresh air port 5, a temperature and humidity sensor 6, a controller 7, a stepper motor reducer group 8, a polymer wheel 9, an adjustable connecting plate 10, a sheet metal air duct 11, a duct fan 12, a dew removal heater 13, a ballast plate 14, and a perforated rib plate 15. The exhaust port 2, the return air port 3, the air supply port 4, and the fresh air port 5 are arranged on the same side of the sheet metal air duct 11. The duct fan 12 , controller 7, stepper motor reducer group 8, dew-removing heater 13 are arranged inside the sheet metal air duct 11, the sheet metal air duct 11 has two layers, the adjustable connecting plate 10 is arranged between the upper and lower layers of the sheet metal air duct 11, the adjustable connecting plate 10 is provided with a waist-shaped groove, and is adjustably connected to the sheet metal air duct 11, the air volume adjustable heating device 1 is connected to the return air channel 5000, and is arranged in the secondary chamber box 2000, the controller 7 is connected to the temperature and humidity sensor 6, stepper motor reducer group 8, dew-removing heater 13 The reducer group 8 and the dew removing heater 13 are connected. The perforated rib plate 15 is arranged in the sheet metal air duct 11. The perforated rib plate 15 is evenly distributed with a number of small holes. The ballast plate 14 is arranged at the rear end of the dew removing heater 13 in the sheet metal air duct 11 and is spaced apart from the dew removing heater 13. The ballast plate 14 is densely covered with air holes. The air volume adjustable heating device 1 includes an air volume heater 101, an air volume temperature sensor 102, an air volume temperature controller 103, and a box 104. The air volume temperature sensor 102 is inserted into the box 104 and connected to the air volume temperature controller 103. The air volume temperature controller 103 is fixed on one side of the box 104. The air volume heater 101 is fixed on the front end of the box 104. Both the dew removal heater 13 and the air volume heater 101 are PTC heaters. A fan is provided on the air volume heater 101. The diameter of the polymer rotor 9 is less than 200 mm. This technology is applied to the ring network cabinet for the first time. The rotor thickness is less than 20 mm.

[0042] The adjustable air volume heating device 1 is connected to the return air duct 5000 and is arranged in the secondary chamber box 2000, which can provide heated air with different temperatures and different air volumes for the device's wheel adsorption. The adjustable connecting plate 10 realizes the adjustable connection of the gap between the upper and lower sheet metal air ducts 11 through the waist-shaped groove, and can be equipped with wheels of different thicknesses. The controller 7 can detect the temperature and humidity data in the cabinet. The switch of the dew removal heater 13 is intelligently adjusted by the controller 7. When the humidity in the ring network cabinet is high, the wheel speed is automatically slowed down, and when the humidity is low, the speed is automatically increased to achieve low-power waterless dehumidification. The perforated rib plate 15 is arranged in the sheet metal air duct 11. The perforated rib plate 15 is evenly distributed with several small holes to increase the adsorption efficiency of the wheel. The sheet metal air duct 11 serves as the shell carrier of the device and as an air duct for conducting airflow. There is a certain distance between the ballast plate 14 and the dew removal heater 13; the ballast plate 14 is densely covered with air-permeable holes, which can be used to ballast and mix the hot air after passing through the dew removal heater 13.

[0043] One end of the air supply channel 4000 is connected to the air supply port 4, and the other end is connected to the secondary chamber box 2000. One end of the return air channel 5000 is connected to the return air port 3, and the other end is connected to the secondary chamber box 2000. One end of the exhaust channel 6000 is connected to the exhaust port 2, and the other end is connected to the secondary chamber box 2000. The upper ends of the air supply channel 4000 and the return air channel 5000 pass through the holes of the secondary chamber box 2000 to send the dehumidified dry air into the secondary chamber box 2000. The lower ends of the air supply channel 4000 and the return air channel 5000 are connected to the ultra-small rotary dehumidifier body 7000 through pipe joints to form a For the circulation of air, the polymer wheel 9 rotates slowly and continuously, one end of the exhaust channel 6000 is connected to the exhaust port 2, and the exhaust port 2 is connected to the upper inner layer of the sheet metal air duct 11, and the other end of the exhaust channel 6000 is connected to the heat dissipation holes of the secondary chamber box 2000, which can discharge the high-temperature and high-humidity gas of the secondary chamber box 2000 out of the ring network cabinet box 1000, and the fresh air port 4 is used to introduce fresh air. When the air humidity outside the ring network cabinet box 1000 is high, it can be circulated in the ring network cabinet box 1000 for dehumidification. When the air humidity outside the ring network cabinet box 1000 is low, the fresh air can be dehumidified and then introduced into the secondary chamber box 2000.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0045] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0046] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An ultra-small rotary dehumidifier for power ring network cabinet, characterized by: The invention comprises a ring network cabinet box (1000), a secondary chamber box (2000), a length-adjustable mounting plate (3000), an air supply channel (4000), a return air channel (5000), an exhaust channel (6000), and a super-small rotary dehumidifier body (7000). The length-adjustable mounting plate comprises a main board, and the number of the main boards is two, one of which is fixed on the secondary chamber box (2000), and the other is fixed on the super-small rotary dehumidifier body (7000). The two main boards are adjustably connected. The air supply channel (4000) and the return air channel (5000) are connected to each other. Both the air ducts (5000) are connected to the ultra-small rotary dehumidifier body (7000), and the ultra-small rotary dehumidifier body (7000) includes an air volume adjustable heating device (1), an air outlet (2), a return air outlet (3), an air supply outlet (4), a fresh air outlet (5), a temperature and humidity sensor (6), a controller (7), a stepper motor reducer group (8), a polymer wheel (9), an adjustable connecting plate (10), a sheet metal air duct (11), a duct fan (12), a dew removal heater (13), a ballast plate (14), and a perforated rib plate (15). The exhaust port (2), the return air port (3), the supply air port (4), and the fresh air port (5) are arranged on the same side of the sheet metal air duct (11); The duct fan (12), controller (7), stepper motor reducer assembly (8), and dew removal heater (13) are arranged inside the sheet metal air duct (11); The sheet metal air duct (11) is provided with an upper and lower layer, and the sheet metal air duct (11) serves as a shell carrier of the dehumidifier and also as an air duct for conducting airflow; The adjustable connecting plate (10) is arranged between the upper and lower sheet metal air ducts (11). The adjustable connecting plate (10) is provided with a waist-shaped groove and is adjustably connected to the outside of the sheet metal air duct (11) to achieve an adjustable gap connection between the upper and lower sheet metal air ducts (11). The air volume adjustable heating device (1) is connected to the return air duct (5000) and is arranged in the secondary chamber box (2000). The controller (7) is connected to the temperature and humidity sensor (6), the stepper motor reducer group (8), and the dew removal heater (13). The main boards are adjustably connected by bolts. The perforated rib plate (15) is arranged in the sheet metal air duct (11). The perforated rib plate (15) is evenly distributed with a plurality of small holes to increase the adsorption efficiency of the polymer wheel (9). The ballast plate (14) is arranged at the rear end of the dew removal heater (13) in the sheet metal air duct (11), and a gap is left between the ballast plate and the dew removal heater (13), so as to perform ballast mixing on the hot air after passing through the dew removal heater (13). One end of the air supply channel (4000) is connected to the air supply port (4), and the other end is connected to the secondary chamber box (2000); one end of the return air channel (5000) is connected to the return air port (3), and the other end is connected to the secondary chamber box (2000); one end of the exhaust channel (6000) is connected to the exhaust port (2), and the other end is connected to the heat dissipation hole of the secondary chamber box (2000), so that the high-temperature and high-humidity gas in the secondary chamber box (2000) can be discharged to the ring network cabinet box (1000).

2. The ultra-small rotary dehumidifier for a power ring main unit according to claim 1, characterized in that: The ballast plate (14) is densely covered with ventilation holes.

3. The ultra-small rotary dehumidifier for a power ring main unit according to claim 1, characterized in that: The air volume adjustable heating device (1) comprises an air volume heater (101), an air volume temperature sensor (102), an air volume temperature controller (103), and a box (104); the air volume temperature sensor (102) is inserted into the box (104) and connected to the air volume temperature controller (103); the air volume temperature controller (103) is fixed to one side of the box (104); and the air volume heater (101) is fixed to the front end of the box (104).

4. The ultra-small rotary dehumidifier for a power ring main unit according to claim 1, characterized in that: Both the dew removal heater (13) and the air volume heater (101) are PTC heaters, and a fan is provided on the air volume heater (101).

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