Energy-saving and environment-friendly inflatable ring main unit

Abstract

The invention relates to the technical field of inflatable ring main units, and discloses an energy-saving and environment-friendly inflatable ring main unit which comprises a cabinet body, hinges are fixedly connected to the outer wall of the cabinet body, a cabinet door is fixedly connected to the outer walls of the hinges, an observation window is formed in the cabinet door, and a plurality of connecting shells are fixedly connected to the two sides of the cabinet body. The cabinet comprises a cabinet body, a connecting shell is arranged in the cabinet body, heat dissipation fins are slidably connected in the connecting shell, a telescopic assembly is arranged on the outer wall of the connecting shell, an inflation pipe is fixedly connected to the outer wall of the cabinet body, a limiting assembly is arranged in the inflation pipe, and the telescopic assembly comprises a motor. According to the heat dissipation device, the motor moves the transmission rod and the rotating rod to move the connecting column, so that the heat dissipation fins slide in the connecting shell, the heat dissipation area is conveniently adjusted, the heat dissipation device adapts to different heat dissipation conditions, and the problem that the length is fixed and the heat dissipation device cannot conveniently adapt to different conditions during heat dissipation in the prior art is solved; and the applicability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas-insulated switchgear, and particularly to an energy-saving and environment-friendly gas-insulated switchgear. Background Art

[0002] An energy-saving and environment-friendly gas-insulated switchgear plays an important role in modern power systems. It is mainly used for load control, protection, and power distribution in medium-voltage distribution networks. With the continuous improvement of the energy-saving and environmental protection requirements in the power industry, the gas-insulated switchgear needs to reduce energy consumption and environmental impact while ensuring reliable operation. The gas-insulated switchgear realizes insulation protection for high-voltage electrical components by filling insulating gases such as sulfur hexafluoride or dry air inside, reducing the impact of the external environment on the equipment, and improving the service life and safety of the equipment. At the same time, in order to ensure the stable operation of the equipment under different working conditions, performance such as heat dissipation and gas sealing is also crucial.

[0003] In the prior art, for the heat dissipation of gas-insulated switchgear, fixed heat sinks or simple cooling fans are mainly used. The structure of the fixed heat sink is to directly install the fins on the surface of the cabinet body, and its heat dissipation area is fixed. It mainly relies on natural convection and radiation to dissipate the heat generated by the equipment. The cooling fan is driven by electricity to accelerate air flow to improve the heat dissipation efficiency. In terms of gas sealing, traditional sealing gaskets and valve structures are usually adopted. The elastic deformation of the sealing gasket is used to fill the gaps to prevent gas leakage, and the valve is used to control the inlet and outlet of the gas. These mechanical structures and technical principles can meet the basic operation requirements of gas-insulated switchgear to a certain extent.

[0004] However, the prior art has obvious deficiencies. In terms of heat dissipation, the heat sink with a fixed length cannot be flexibly adjusted according to the actual heat dissipation requirements inside the switchgear. When the switchgear operates at high load, more heat is generated, and the fixed heat sink cannot provide enough heat dissipation area, resulting in too high equipment temperature and affecting the performance and service life of the equipment; while when operating at low load, the fixed heat sink will continuously dissipate heat, causing unnecessary energy waste. Therefore, an energy-saving and environment-friendly gas-insulated switchgear is proposed to solve the above problems. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides an energy-saving and environment-friendly gas-insulated switchgear, aiming to improve the problem that the length is fixed and cannot be conveniently adapted to different situations during heat dissipation in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An energy-saving and environment-friendly inflatable ring main unit, comprising a cabinet body, a hinge is fixedly connected to the outer wall of the cabinet body, a cabinet door is fixedly connected to the outer wall of the hinge, an observation window is opened inside the cabinet door, a plurality of connection shells are fixedly connected to both sides of the cabinet body, a heat dissipation fin is slidably connected inside the connection shell, a telescopic component is arranged on the outer wall of the connection shell, an inflation pipe is fixedly connected to the outer wall of the cabinet body, and a limiting component is arranged inside the inflation pipe;

[0008] The telescopic component includes a motor, the bottom of the motor is fixedly connected to the top of the connection shell, a transmission rod is fixedly connected to the output end of the motor, a rotating rod is rotatably connected to the top of the transmission rod, the other end of the rotating rod is rotatably connected to a connection column, and the outer wall of the connection column is fixedly connected inside the heat dissipation fin for connecting a plurality of heat dissipation fins. A limiting plate is fixedly connected to one side of the heat dissipation fin, and the outer wall of the limiting plate is slidably connected inside the connection shell.

[0009] As a further description of the above technical solution:

[0010] The limiting component includes a fixed shell, and the outer wall of the fixed shell is arranged inside the inflation pipe.

[0011] As a further description of the above technical solution:

[0012] A guiding hole is opened inside the inflation pipe, a moving groove is opened inside the fixed shell, and a ring array of connection blocks is fixedly connected to the outer wall of the fixed shell.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the connection block is fixedly connected to the inner wall of the inflation pipe, and a fixed column is slidably connected inside the fixed shell.

[0015] As a further description of the above technical solution:

[0016] One end of the fixed column is fixedly connected with a rubber plug, and the outer wall of the rubber plug is slidably connected inside the guiding hole.

[0017] As a further description of the above technical solution:

[0018] The other end of the fixed column is fixedly connected with a limiting disc, and the outer wall of the limiting disc is slidably connected inside the moving groove.

[0019] As a further description of the above technical solution:

[0020] A spring is arranged inside the fixed shell, one end of the spring is fixedly connected to the inner wall of the moving groove, and the other end of the spring is fixedly connected to the outer wall of the limiting disc.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, the connecting column realizes its moving function through the starting motor. When the starting motor is activated, the motor moves the connecting column through the transmission rod and the rotating rod, realizing the sliding of the heat dissipation fins inside the connecting housing, so as to conveniently adjust the heat dissipation area and adapt to different heat dissipation situations, solving the problem that the length is fixed and cannot conveniently adapt to different situations during the existing heat dissipation, and improving the applicability of the device.

[0023] 2. In the present invention, the rubber plug realizes its moving function through gas filling. When gas is filled, the gas drives the rubber plug to drive the limiting disc to move, realizing the compression of the second spring, so as to conveniently and quickly open and close the guiding hole and prevent gas backflow, solving the problem that the guiding hole cannot be quickly closed, and improving the airtightness of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional schematic diagram of an energy-saving and environment-friendly gas-insulated switchgear proposed by the present invention;

[0025] Figure 2 is a schematic diagram of the internal structure of the connecting housing of an energy-saving and environment-friendly gas-insulated switchgear proposed by the present invention;

[0026] Figure 3 is a schematic diagram of the internal structure of the gas filling pipe of an energy-saving and environment-friendly gas-insulated switchgear proposed by the present invention;

[0027] Figure 4 is a schematic diagram of the internal structure of the fixed housing of an energy-saving and environment-friendly gas-insulated switchgear proposed by the present invention.

[0028] Legend Explanation:

[0029] 1. Cabinet body; 2. Heat dissipation fins; 3. Connecting housing; 4. Connecting column; 5. Gas filling pipe; 6. Cabinet door; 7. Observation window; 8. Hinge; 9. Rotating rod; 10. Transmission rod; 11. Limiting plate; 12. Motor; 13. Fixed housing; 14. Guiding hole; 15. Rubber plug; 16. Fixed column; 17. Limiting disc; 18. Connecting block; 19. Spring; 20. Moving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Refer toFigure 1 and Figure 2 An embodiment provided by the present invention: An energy-saving and environmentally friendly gas-insulated ring main unit, including a cabinet body 1, a hinge 8 is fixedly connected to the outer wall of the cabinet body 1, a cabinet door 6 is fixedly connected to the outer wall of the hinge 8, an observation window 7 is opened inside the cabinet door 6, and the observation window 7 is made of high-strength transparent tempered glass, which has good transparency and explosion-proof performance, facilitating the staff to observe the operating state of the equipment inside the cabinet body 1 at any time. A plurality of connecting shells 3 are fixedly connected to both sides of the cabinet body 1. A heat dissipation fin 2 is slidably connected inside the connecting shell 3. The heat dissipation fin 2 is made of high-purity copper material, which has excellent heat conduction performance and can quickly dissipate the heat generated inside the cabinet body 1. A telescopic component is arranged on the outer wall of the connecting shell 3, and an inflation pipe 5 is fixedly connected to the outer wall of the cabinet body 1. A limiting component is arranged inside the inflation pipe 5;

[0032] The telescopic component includes a motor 12. The bottom of the motor 12 is fixedly connected to the top of the connecting shell 3. The output end of the motor 12 is fixedly connected to a transmission rod 10. The transmission rod 10 is a solid stainless steel rod with high strength and rigidity. The top of the transmission rod 10 is rotatably connected to a rotating rod 9 through a bearing. The top of the transmission rod 10 is rotatably connected to the rotating rod 9. The rotating rod 9 is also made of stainless steel. The other end of the rotating rod 9 is rotatably connected to a connecting column 4 through a spherical bearing. The other end of the rotating rod 9 is rotatably connected to the connecting column 4. The outer wall of the connecting column 4 is fixedly connected inside the heat dissipation fin 2 for connecting a plurality of heat dissipation fins 2. A limiting plate 11 is fixedly connected to one side of the heat dissipation fin 2. The outer wall of the limiting plate 11 is slidably connected inside the connecting shell 3.

[0033] Specifically, when the gas-insulated ring main unit is in operation and the internal temperature is too high, which means that the equipment is in a high-load operation state or there are problems such as poor heat dissipation. At this time, the motor 12 can be started. The motor 12 drives the transmission rod 10 to rotate. The rotation of the transmission rod 10 drives the rotating rod 9 to move. The movement of the rotating rod 9 further drives the connecting column 4 to move. The movement of the connecting column 4 drives the heat dissipation fin 2 to slide inside the connecting shell 3. During the sliding process, the limiting plate 11 limits the heat dissipation fin 2 to prevent it from slipping off, so that the heat dissipation fin 2 extends out, the heat dissipation area is increased, and the heat dissipation rate is accelerated. When the internal temperature is normal and low, the reverse operation can be performed to retract the heat dissipation fin 2 and reduce the heat dissipation area to protect the internal temperature.

[0034] Refer to Figure 1 、 Figure 3 and Figure 4, the limiting component includes a fixed outer shell 13, the outer wall of the fixed outer shell 13 is arranged inside the inflatable tube 5, a guiding hole 14 is provided inside the inflatable tube 5, the inner wall of the guiding hole 14 is finely polished and smooth, which can reduce the resistance when gas flows and ensure the smooth passage of gas. A moving groove 20 is provided inside the fixed outer shell 13, and annularly arrayed connecting blocks 18 are fixedly connected to the outer wall of the fixed outer shell 13, and the outer walls of the connecting blocks 18 are fixedly connected to the inner wall of the inflatable tube 5. A fixed column 16 is slidably connected inside the fixed outer shell 13, one end of the fixed column 16 is fixedly connected to a rubber plug 15, and the rubber plug 15 is made of nitrile rubber and has good elasticity and sealing performance. The outer wall of the rubber plug 15 is closely attached to the inner wall of the guiding hole 14 and can slide flexibly inside the guiding hole 14 to realize the opening and closing control of the guiding hole 14. The outer wall of the rubber plug 15 is slidably connected inside the guiding hole 14, the other end of the fixed column 16 is fixedly connected to a limiting disc 17, and the outer wall of the limiting disc 17 is slidably connected inside the moving groove 20. A spring 19 is arranged inside the fixed outer shell 13, one end of the spring 19 is fixedly connected to the inner wall of the moving groove 20, and the other end of the spring 19 is fixedly connected to the outer wall of the limiting disc 17.

[0035] Specifically, when inflating the internal part of the energy-saving and environmental protection gas-insulated switchgear, the pipeline should be first connected to the inside of the inflatable tube 5. After the gas enters, it will start to inflate through the guiding hole 14. As the gas continuously surges in, a certain pressure will be generated, and this pressure drives the rubber plug 15 to move. The rubber plug 15 slides out from the inside of the guiding hole 14, and the originally airtight state blocked by the rubber plug 15 is released. At the same time, the movement of the rubber plug 15 drives the fixed column 16 to move together. The movement of the fixed column 16 further drives the limiting disc 17 to slide inside the moving groove 20. During this process, the limiting disc 17 compresses the spring 19 in the moving groove 20, enabling the gas to be smoothly filled into the internal part of the switchgear. When the inflation stops and no more gas is filled, the spring 19 will rebound by its own elasticity. The rebound of the spring 19 drives the limiting disc 17 back to its original position, and the limiting disc 17 drives the rubber plug 15 to slide back into the guiding hole 14 through the fixed column 16, thereby closing the guiding hole 14 and effectively preventing gas backflow.

[0036] Working principle: When the internal temperature is too high, the motor 12 can be started. The motor 12 drives the transmission rod 10 to rotate, and then the transmission rod 10 drives the rotating rod 9 to move, which can drive the connecting column 4 to move, so as to drive the heat dissipation fins 2 to slide inside the connecting shell 3, and is limited by the limiting plate 11 to prevent slipping, thereby increasing the heat dissipation area and accelerating the heat dissipation rate. When the internal temperature is normal and relatively low, the heat dissipation fins 2 can be retracted to reduce the heat dissipation area and protect the internal temperature;

[0037] In addition, when inflating the interior, connect the pipe to the inside of the inflatable pipe 5, inflate through the guiding hole 14, drive the rubber plug 15 to move by the gas, so that it slides out from the inside of the guiding hole 14 to release the airtight state. At the same time, drive the fixed column 16 to move by the rubber plug 15, and then drive the limiting disc 17 to slide inside the moving groove 20 by the fixed column 16 to compress the moving groove 20, so as to allow the gas to be filled. When the gas is not filled, the spring 19 rebounds to drive the limiting disc 17 back to its original position, driving the rubber plug 15 to slide back into the guiding hole 14 to seal it and prevent the gas from flowing back.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An energy-saving and environmentally friendly inflatable ring main unit, comprising a cabinet body (1), characterized in that: The outer wall of the cabinet (1) is fixedly connected to a hinge (8), the outer wall of the hinge (8) is fixedly connected to a cabinet door (6), an observation window (7) is provided inside the cabinet door (6), a plurality of connection shells (3) are fixedly connected to both sides of the cabinet (1), a heat dissipation fin (2) is slidably connected inside the connection shell (3), a telescopic component is provided on the outer wall of the connection shell (3), an inflation tube (5) is fixedly connected to the outer wall of the cabinet (1), and a limiting component is provided inside the inflation tube (5); The telescopic assembly comprises a motor (12), the bottom of the motor (12) is fixedly connected to the top of the connecting shell (3), the output end of the motor (12) is fixedly connected to a transmission rod (10), the top of the transmission rod (10) is rotatably connected to a rotating rod (9), the other end of the rotating rod (9) is rotatably connected to a connecting column (4), the outer wall of the connecting column (4) is fixedly connected to the inside of the heat dissipation fin (2) for connecting a plurality of heat dissipation fins (2), one side of the heat dissipation fin (2) is fixedly connected to a limiting plate (11), the outer wall of the limiting plate (11) is slidably connected to the inside of the connecting shell (3).

2. The energy-saving and environmentally friendly pneumatic ring main unit according to claim 1, characterized in that: The limiting component comprises a fixed shell (13), the outer wall of which is arranged inside the inflation tube (5).

3. The energy-saving and environmentally friendly pneumatic ring main unit according to claim 2 is characterized by: A guide hole (14) is provided inside the inflation tube (5), a movable groove (20) is provided inside the fixed shell (13), and an annular array of connecting blocks (18) are fixedly connected to the outer wall of the fixed shell (13).

4. The energy-saving and environmentally friendly pneumatic ring main unit according to claim 3 is characterized by: The outer wall of the connecting block (18) is fixedly connected to the inner wall of the inflation tube (5), and a fixing column (16) is slidably connected inside the fixed shell (13).

5. The energy-saving and environmentally friendly pneumatic ring main unit according to claim 4, characterized in that: One end of the fixed column (16) is fixedly connected to a rubber plug (15), and the outer wall of the rubber plug (15) is slidably connected to the inside of the guide hole (14).

6. The energy-saving and environmentally friendly pneumatic ring main unit according to claim 5, characterized in that: The other end of the fixed column (16) is fixedly connected to a limiting disc (17), and the outer wall of the limiting disc (17) is slidably connected to the inside of the moving groove (20).

7. The energy-saving and environmentally friendly pneumatic ring main unit according to claim 6, characterized in that: A spring (19) is arranged inside the fixed housing (13), one end of the spring (19) is fixedly connected to the inner wall of the movable groove (20), and the other end of the spring (19) is fixedly connected to the outer wall of the limiting disc (17).

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