CN111786308A

CN111786308A - Sulfur hexafluoride insulation inflatable ring main unit

Info

Publication number: CN111786308A
Application number: CN202010781241.XA
Authority: CN
Inventors: 周建斌
Original assignee: Yueqing Chenyi Enterprise Information Consulting Co ltd
Current assignee: Yueqing Chenyi Enterprise Information Consulting Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2020-10-16

Abstract

The invention discloses a sulfur hexafluoride insulation inflatable ring main unit which comprises a main body, wherein a cabinet door is arranged on the front side of the main body, an air cavity and a cavity are arranged on the main body, four corners of the bottom of the main body are connected with vertically arranged supporting legs in a sliding mode, an air box is arranged on the top of the inner side of the cavity, two sides of the air box are fixedly connected with one end of a bent pipe, the other end of the bent pipe is communicated with the air cavity, a motor is fixedly connected to the inner wall of one side of the cavity, a first fan blade, two rotating discs and a plurality of groups of second fan blades are fixedly sleeved on an output shaft of the motor, the plurality of groups of second fan blades are located on the inner side of the air box. The circulating flow effect of the sulfur hexafluoride gas in the ring main unit is improved, heat dissipation is facilitated, the temperature in the ring main unit is reduced, wheels on the supporting legs of the ring main unit can freely lift and fall by means of power of the motor, and the ring main unit can be conveniently and labor-saving shifted.

Description

Sulfur hexafluoride insulation inflatable ring main unit

Technical Field

The invention relates to the technical field of ring main units, in particular to a sulfur hexafluoride insulation inflatable ring main unit.

Background

The ring main unit is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit, and the core part of the ring main unit adopts a load switch and a fuse. Through retrieval, chinese patent with publication number CN209948470U discloses an insulating inflatable sulfur hexafluoride ring main unit, which comprises a cabinet body, wherein a base is installed at the bottom of the cabinet body, four liftable installation frames are installed on the inner top wall of the base, moving wheels are installed at the bottom of the installation frames, a pushing mechanism is arranged inside the base, two lifting grooves are formed in the inner top wall of the base, liftable installation plates are arranged inside the lifting grooves, and the bottom of the installation plates is fixedly connected with the top of the installation frames. This sulfur hexafluoride insulation inflatable looped netowrk cabinet can drive pushing mechanism through the rotating rolling disc, and pushing mechanism drives the movable plate and promotes the piece and removes, promotes the piece and removes the in-process inclined plane and offsets with removing the wheel, pushes away and removes the wheel decline and stretch out the base, and four remove the wheel and stretch out the base after, can be with cabinet body and base jack-up for remove wheel and ground contact, through the setting that removes the wheel, make the removal of the whole cabinet body more convenient.

However, the flowing effect of the insulating gas in the existing ring main unit is poor, heat dissipation is not facilitated, the internal electric elements of the ring main unit are easily damaged due to overheating, and the position of the existing ring main unit is inconvenient to shift due to the fact that the size of the existing ring main unit is too heavy, so that the sulfur hexafluoride insulating inflatable ring main unit is provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a sulfur hexafluoride insulation inflatable ring main unit.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sulfur hexafluoride insulation inflatable ring main unit comprises a main body, wherein a cabinet door is arranged on the front side of the main body, an air cavity and a cavity are arranged on the main body, supporting legs which are vertically arranged are connected to four corners of the bottom of the main body in a sliding mode, an air box is arranged on the top of the inner side of the cavity, one end of a bent pipe is fixedly connected to each of two sides of the air box, the other end of the bent pipe is communicated with the air cavity, a motor is fixedly connected to the inner wall of one side of the cavity, a first fan blade, two rotating discs and a plurality of groups of second fan blades are fixedly sleeved on the output shaft of the motor, the plurality of groups of second fan blades are located on the inner side of the air box, the air box is located between the two rotating discs, the first fan blade is located on the outer side of the air box, a first screw rod which is horizontally arranged, and the support that the same level of top fixedly connected with of two slides set up, the both ends of support all are connected with the back shaft through the bearing rotation, the fixed cover in top of back shaft has connect first sprocket, the top side fixedly connected with rubber wheel of first sprocket, and two rubber wheels all are located between two carousels, the top of supporting leg extends to the cavity and threaded connection has the second screw rod, the second screw rod rotates to be connected on the inner wall of cavity, the fixed cover in top of second screw rod has connect the second sprocket, and two first sprockets and four second sprocket on the transmission be connected with same root chain, the bottom of supporting leg is rotated and is connected with the wheel.

Preferably, one end of the first screw extends to the outer side of the cabinet body and is fixedly sleeved with a hand wheel, and four corners of the bottom of the cabinet body are fixedly connected with cushion blocks.

Preferably, the inner walls of the tops of the two sides of the cavity are provided with air holes, and dust screens are fixedly connected in the air holes.

Preferably, the outer side and the inner side of the air box are both provided with a plurality of groups of radiating fins, and the bottom side of the rotary disc extends to the lower part of the air box.

Preferably, rectangular holes are formed in the outer sides of the two support legs positioned on the front side in the four support legs, and the first screw is positioned in the rectangular holes.

Preferably, the outer side of the second screw rod is rotatably connected with one end of a support rod through a bearing, and the other end of the support rod is fixedly connected with the inner wall of the cavity.

Preferably, the diameter of the wheel disc of the rubber wheel is larger than that of the wheel disc of the first chain wheel, and the second screw is positioned above the first screw.

Preferably, the bottom four corners of the cabinet body are all provided with mounting holes matched with the supporting legs, and the outer sides of the supporting legs are movably connected with the corresponding mounting holes.

Compared with the prior art, the sulfur hexafluoride insulation inflatable ring main unit provided by the invention has the following beneficial effects:

(1) the first fan blade, the two rotary tables and the multiple groups of second fan blades are driven to rotate by the motor, the second fan blades push air in the air box to move to the left side, the air box realizes circular flow with sulfur hexafluoride gas in an air cavity through a bent pipe, heat carried by the sulfur hexafluoride gas is absorbed by the heat dissipation fins on the air box, the first fan blades rotate to push the air in the cavity to the outer side of the cabinet body, the heat on the heat dissipation fins on the air box is taken away, and heat dissipation and cooling of the ring main unit are realized;

(2) the hand wheel is shaken to drive the first screw rod to rotate, the sliding plate is driven to move towards the right side when the first screw rod rotates, the rubber wheel moves towards the right side and then contacts with the turntable on the right side, the turntable drives the rubber wheel to rotate, the first chain wheel drives the second chain wheel and the second screw rod to rotate through the chain, the second screw rod rotates to drive the supporting leg to descend, the wheel at the bottom end of the supporting leg moves downwards to contact with the ground and lift up the cabinet body, the hand wheel is rotated in the opposite direction to reset the rubber wheel to the central position, the supporting leg does not descend continuously, and the cabinet body can be subjected to position transfer;

(3) the hand wheel is rotated in the opposite direction, the rubber wheel is abutted against the rotary table on the left side, the supporting legs can be gradually retracted by rotating the second screw rod in the opposite direction, the cushion block can be contacted with the ground again, and the cabinet body can be stably placed;

the circulating flow effect of the sulfur hexafluoride gas in the design is improved, heat dissipation is facilitated, the temperature in the ring main unit is reduced, wheels on the supporting legs of the ring main unit can freely lift and fall by means of power of the motor, and the ring main unit can be conveniently and labor-saving shifted.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of portion B of FIG. 3;

fig. 5 is a bottom view of the second sprocket, the chain and the first sprocket as proposed by the present invention.

In the figure: 1. a cabinet body; 2. a cabinet door; 3. cushion blocks; 4. supporting legs; 5. an air chamber; 6. a chamber; 7. a gas tank; 8. bending the pipe; 9. a motor; 10. a second fan blade; 11. a turntable; 12. a first screw; 13. a slide plate; 14. a support; 15. a support shaft; 16. a first sprocket; 17. a rubber wheel; 18. a second screw; 19. a second sprocket; 20. a chain; 21. a dust screen; 22. a first fan blade; 23. heat dissipation fins; 24. a support bar; 25. a hand wheel; 26. a wheel; 27. a rectangular hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, the sulfur hexafluoride insulation inflatable ring main unit comprises a main body 1, a cabinet door 2 is arranged on the front side of the main body 1, an air chamber 5 and a chamber 6 are arranged on the main body 1, four corners of the bottom of the main body 1 are slidably connected with vertically arranged supporting legs 4, an air box 7 is arranged on the top of the inner side of the chamber 6, two sides of the air box 7 are fixedly connected with one end of a bent pipe 8, the other end of the bent pipe 8 is communicated with the air chamber 5, a motor 9 is fixedly connected on the inner wall of one side of the chamber 6, a first fan blade 22, two rotary tables 11 and a plurality of groups of second fan blades 10 are fixedly sleeved on the output shaft of the motor 9, the plurality of groups of second fan blades 10 are all positioned on the inner side of the air box 7, the air box 7 is positioned between the two rotary tables 11, the first fan blade 22 is positioned on the outer side of the air box 7, a horizontally arranged first screw, and the support 14 that the same level of top fixedly connected with of two slides 13 set up, the both ends of support 14 all are connected with back shaft 15 through the bearing rotation, the fixed cover in top of back shaft 15 has first sprocket 16, the top side fixedly connected with rubber wheel 17 of first sprocket 16, and two rubber wheels 17 all are located between two carousel 11, the top of supporting leg 4 extends to in the cavity 6 and threaded connection has second screw rod 18, second screw rod 18 rotates and connects on the inner wall of cavity 6, the fixed cover in top of second screw rod 18 has second sprocket 19, and two first sprockets 16 and four second sprockets 19 go up the transmission and be connected with same chain 20, the bottom of supporting leg 4 rotates and is connected with wheel 26.

In this embodiment, the one end of first screw rod 12 extends to the outside of the cabinet body 1 and has fixedly cup jointed the hand wheel 25, the equal fixedly connected with cushion 3 in bottom four corners of the cabinet body 1, all seted up the gas pocket on the both sides top inner wall of cavity 6, and fixedly connected with dust screen 21 in the gas pocket, the outside and the inboard of gas tank 7 all are provided with multiunit heat radiation fins 23, and the bottom side of carousel 11 extends to the below of gas tank 7.

In this embodiment, rectangular hole 27 has been seted up in the outside of two supporting legs 4 that lie in the front side among four supporting legs 4, first screw 12 is located rectangular hole 27, the outside of second screw 18 rotates the one end that is connected with bracing piece 24 through the bearing, and on the inner wall of the other end fixed connection of bracing piece 24 and cavity 6, the rim plate diameter of the first sprocket 16 of rim plate diameter ratio of rubber wheel 17 is big, second screw 18 is located the top of first screw 12, the mounting hole with supporting leg 4 looks adaptation is all seted up in the bottom four corners of the cabinet body 1, the outside and the corresponding mounting hole swing joint of supporting leg 4.

In this embodiment, when the device is used, the motor 9 is started, the motor 9 drives the first fan blades 22, the two rotating discs 11 and the plurality of groups of second fan blades 10 to rotate simultaneously, the second fan blades 10 push the air in the air box 7 to move to the left, the air box 7 realizes the circular flow with the sulfur hexafluoride gas in the air cavity 5 through the bent pipe 8, the heat carried in the sulfur hexafluoride gas can also be absorbed by the heat dissipation fins 23 on the air box 7, the first fan blades 22 push the air in the cavity 6 to the outside of the cabinet body 1 when rotating, so that the air in the cavity 6 realizes the circular flow with the outside air, the heat on the heat dissipation fins 23 on the air box 7 is taken away, the hand wheel 25 is shaken, the hand wheel 25 drives the first screw 12 to rotate, the first screw 12 drives the sliding plate 13 to move to the right, the sliding plate 13 drives the bracket 14, the support shaft 15, the first chain wheel 16 and the rubber wheel 17 to move to the right, and, the turntable 11 drives the rubber wheel 17 to start rotating, at the moment, the first chain wheel 16 drives the second chain wheel 19 and the second screw rod 18 to rotate through the chain 20, the second screw rod 18 drives the supporting leg 4 to descend when rotating, the wheel 26 at the bottom end of the supporting leg 4 moves downwards to be in contact with the ground and lift up the cabinet body 1, then the hand wheel 25 is rotated in the opposite direction to reset the rubber wheel 17 to the central position, the supporting leg 4 does not descend continuously, and at the moment, the cabinet body 1 can be subjected to position transfer through the wheel 26; the hand wheel 25 is rotated in the opposite direction, the rubber wheel 17 is abutted to the rotary table 11 on the left side, the second screw 18 is rotated in the opposite direction, the supporting leg 4 can be gradually retracted, the cushion block 3 can be contacted with the ground again, and the cabinet body 1 can be stably placed.

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

Claims

1. A sulfur hexafluoride insulation inflatable ring main unit comprises a main body (1), wherein a cabinet door (2) is arranged on the front side of the main body (1), an air chamber (5) and a chamber (6) are arranged on the main body (1), and is characterized in that four corners of the bottom of the main body (1) are connected with vertically arranged supporting legs (4) in a sliding manner, an air box (7) is arranged at the top of the inner side of the chamber (6), two sides of the air box (7) are fixedly connected with one end of a bent pipe (8), the other end of the bent pipe (8) is communicated with the air chamber (5), a motor (9) is fixedly connected onto the inner wall of one side of the chamber (6), a first fan blade (22), two turntables (11) and a plurality of groups of second fan blades (10) are fixedly sleeved on an output shaft of the motor (9), and the plurality of groups of second fan blades (10) are all positioned, the gas tank (7) is arranged between two turntables (11), the first fan blade (22) is arranged outside the gas tank (7), the inner wall of the bottom of the cavity (6) is rotatably connected with a first screw rod (12) horizontally arranged through a bearing, two sliding plates (13) are sleeved on the outer thread of the first screw rod (12), the top parts of the two sliding plates (13) are fixedly connected with a support (14) horizontally arranged, the two ends of the support (14) are both rotatably connected with a support shaft (15) through a bearing, the top end of the support shaft (15) is fixedly sleeved with a first chain wheel (16), the top side of the first chain wheel (16) is fixedly connected with a rubber wheel (17), the two rubber wheels (17) are both arranged between the two turntables (11), the top end of the support leg (4) extends into the cavity (6) and is connected with a second screw rod (18) through a thread, second screw rod (18) rotate to be connected on the inner wall of cavity (6), the fixed cover in top of second screw rod (18) has connect second sprocket (19), and two first sprockets (16) and four second sprockets (19) go up the transmission and are connected with same root chain (20), the bottom of supporting leg (4) is rotated and is connected with wheel (26).

2. The sulfur hexafluoride insulation inflatable ring main unit as claimed in claim 1, wherein one end of the first screw (12) extends to the outside of the main unit body (1) and is fixedly sleeved with a hand wheel (25), and four corners of the bottom of the main unit body (1) are fixedly connected with cushion blocks (3).

3. The sulfur hexafluoride insulation inflatable ring main unit as claimed in claim 1, wherein the inner walls of the top portions of the two sides of the chamber (6) are provided with air holes, and a dust screen (21) is fixedly connected in the air holes.

4. The sulfur hexafluoride insulation inflatable ring main unit as claimed in claim 1, wherein the air box (7) is provided with a plurality of sets of heat dissipating fins (23) on both the outside and the inside, and the bottom side of the rotary table (11) extends to below the air box (7).

5. The sulfur hexafluoride insulation inflatable ring main unit as claimed in claim 1, wherein rectangular holes (27) are formed in the outer sides of two support legs (4) located on the front side of the four support legs (4), and the first screw (12) is located in the rectangular holes (27).

6. The sulfur hexafluoride insulation inflatable ring main unit as claimed in claim 1, wherein the outside of the second screw rod (18) is rotatably connected with one end of a support rod (24) through a bearing, and the other end of the support rod (24) is fixedly connected with the inner wall of the chamber (6).

7. The sulfur hexafluoride insulation inflatable ring main unit as claimed in claim 1, wherein the diameter of the wheel disc of the rubber wheel (17) is larger than that of the wheel disc of the first chain wheel (16), and the second screw (18) is located above the first screw (12).

8. The sulfur hexafluoride insulation inflatable ring main unit as claimed in claim 1, wherein four corners of the bottom of the main unit (1) are respectively provided with mounting holes matched with the support legs (4), and the outer sides of the support legs (4) are movably connected with the corresponding mounting holes.