CN115547620A

CN115547620A - Safety device suitable for distribution transformer

Info

Publication number: CN115547620A
Application number: CN202211392267.0A
Authority: CN
Inventors: 李澄; 王成亮; 杨庆胜; 王宁; 包正君; 朱足君; 陈颢; 王伏亮
Original assignee: Jiangsu Fangtian Power Technology Co Ltd
Current assignee: Jiangsu Fangtian Power Technology Co Ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2022-12-30
Anticipated expiration: 2042-11-08
Also published as: CN115547620B

Abstract

The invention relates to the technical field of electric power safety protection, in particular to a safety device suitable for a distribution transformer. The utility model provides a safety device suitable for distribution transformer, including the underframe, the support frame is installed at the underframe top, support frame top rigid coupling has hollow frame, hollow frame lower part is provided with the through-hole, underframe upper portion is provided with the otter board, the bottom is provided with the vortex subassembly that is used for stirring the air current in disorder in the underframe, the frame of admitting air is installed at the top in the underframe, it is connected with the baffle to rotate between support frame and the underframe, symmetrical formula sliding connection has the collection frame in the hollow frame, hollow frame symmetrical formula has inlayed the discharging pipe with the collection frame intercommunication. The invention uses wind as power to make the baffle plates around rotate to form a protective frame to protect the distribution transformer, and the air at the lower side flows upwards to take away the heat generated by the work of the distribution transformer by generating pressure difference through the different flow rates of the wind at the upper side and the lower side, thereby manufacturing a proper environment for the work of the distribution transformer.

Description

Safety device suitable for distribution transformer

Technical Field

The invention relates to the technical field of electric power safety protection, in particular to a safety device suitable for a distribution transformer.

Background

Distribution transformer mainly used alternate current voltage and electric current, as the static electrical apparatus of transmission alternating current electric energy, and distribution transformer falls to the ground to install for open air, and the transformer bushing is easily influenced by external factor and is transmitted alternating current electric energy.

In some areas with more wind and sand weather, in windy weather, the air flow can bring sand stones to move and collide with a distribution transformer, and meanwhile, the transformer sleeve can be corroded to cause insulation enamel damage, the transformer sleeve is mainly used for insulation between an outgoing line and a transformer shell, the electrical insulation performance of the transformer sleeve can be influenced after the insulation enamel is damaged, certain damage is caused to the transformer, a large amount of dust can be driven to float in the wind and sand weather, and the heat dissipation performance of the transformer can be influenced by the adhesion of the scattered dust to the transformer.

Disclosure of Invention

To solve the problems mentioned in the background above, the present invention provides a safety device suitable for a distribution transformer.

A safety device suitable for a distribution transformer comprises a bottom frame, wherein a support frame is installed at the top of the bottom frame, a hollow frame is fixedly connected to the top of the support frame, a through hole is formed in the lower portion of the hollow frame, a screen plate is arranged on the upper portion of the bottom frame, a turbulence component used for reducing air flow rate is arranged at the bottom in the bottom frame, an air inlet frame is installed at the top in the bottom frame, a baffle is rotatably connected between the support frame and the bottom frame and is in an eccentric rotating state, a collecting frame is symmetrically and slidably connected in the hollow frame, discharge pipes communicated with the collecting frame are symmetrically embedded in the hollow frame, air outlet holes are symmetrically formed in the side walls of the collecting frame, a fixed fan blade frame is rotatably connected with the hollow frame, centrifugal blocks are slidably connected to the lower portion of the fixed fan blade frame at equal intervals in the circumferential direction, tension springs are fixedly connected between the centrifugal blocks and the fixed fan blade frame, a mounting block is slidably connected to the lower end of the fixed fan blade frame through a spline rod, and a pull rope is fixedly connected between the centrifugal block and the mounting block, the pull rope is connected with the fixed leaf frame in a sliding way, the mounting block is connected with a mounting plate in a rotating way, the mounting plate is provided with inclined grooves at equal intervals in the circumferential direction, the bottom of the mounting plate is fixedly connected with a telescopic frame, the telescopic frame is fixedly connected with the bottom of the hollow frame through a fixing frame, the bottom of the hollow frame is connected with a moving frame in a sliding way at equal intervals in the circumferential direction, the upper end of the moving frame is fixedly connected with a connecting frame, the lower end of the moving frame is fixedly connected with a trapezoidal block, the bottom of the hollow frame is fixedly connected with positioning frames with the same number as the moving frames in the circumferential direction, the positioning frames arranged at equal intervals in the circumferential direction are positioned outside the mounting plate, springs are fixedly connected between the positioning frames and the adjacent connecting frames, the upper part of the baffle at the same side is connected with a pushing plate in a rotating way through a connecting block, the pushing plate is fixedly connected with the telescopic plate, the telescopic plate is fixedly connected with the adjacent trapezoidal blocks, the baffle rotates to form a protective frame to protect the distribution transformer, and the air flow velocity at the upper side and the lower side can be different to generate a pressure difference through the turbulence assembly, the heat of the distribution transformer is taken out by making the air on the lower side flow upwards.

In addition, it is particularly preferable that the spoiler assembly is provided in a disordered arrangement state, and the spoiler assembly is used for disturbing air flowing in the bottom frame.

Further, it is particularly preferable that the thickness of the bottom portion in the collection frame is gradually increased from both sides toward the middle portion for the outflow of the gravel and sand in the collection frame.

In addition, it is particularly preferred that the air outlet is located at the upper side of the inner bottom of the collection frame, and the top of the collection frame is flush with the top of the hollow frame.

In addition, it is especially preferred that the spoiler assembly includes the mount pad, and the mount pad rigid coupling is in the bottom in the underframe, and the mount pad rotates and is connected with the spoiler, and the spoiler is provided with the air vent, and the rigid coupling has the torsional spring between spoiler and the mount pad.

Furthermore, it is particularly preferred that the thickness of the spoiler is gradually increased from the middle portion to both sides, and the thickness of the spoiler is gradually decreased from the lower side to the upper side for guiding the air upward.

In addition, it is especially preferred that the air filter further comprises a containing box, the containing box is fixedly connected in the air inlet frame, the lower portion of the containing box is fixedly connected with a square frame, the upper portion of the square frame is fixedly connected with a filter shell, and the bottom of the filter shell is provided with a through hole.

In addition, it is particularly preferable that the tank is filled with a liquid, and a liquid level of the liquid is located at an upper side of the through hole of the filter housing, for washing dust in the air with water.

In addition, it is particularly preferred that a filter element is included, which is provided with a mesh plate bottom and is used for filtering out moisture in the air.

In addition, it is especially preferred that the power distribution transformer further comprises a rubber sealing block, wherein the rubber sealing block is arranged on the upper portion of the hollow frame and sleeved outside the lead of the power distribution transformer and used for enhancing the sealing performance between the lead and the hollow frame, and sealing strips are arranged on one side of the support frame matched with the baffle and one side of the support frame matched with the adjacent baffle and used for enhancing the sealing performance between the support frame and the baffle and the adjacent baffle.

The invention has the beneficial effects that:

according to the invention, natural wind is used as power, when the wind speed reaches a degree enough to raise sand dust, the surrounding baffles are matched to form a protective frame after rotating to protect the distribution transformer, so that the transformer sleeve is prevented from being corroded by sand and stone to cause damage, the transmission of alternating current electric energy is prevented from being influenced, the flow direction of the wind at the lower side is disturbed by the turbulence component, and the pressure difference is generated by the difference of the flow rates of the wind at the upper side and the lower side, so that the air at the lower side naturally flows upwards to take away the heat generated by the work of the distribution transformer, and a proper environment is manufactured for the work of the distribution transformer.

Through carrying out the mode of washing to containing the sand blown by the wind air, avoid the dust adhesion in the air on distribution transformer, influence its heat dispersion, utilize and filter filtering steam, avoid the steam in the air to corrode distribution transformer.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional perspective view of the present invention.

Fig. 3 is a schematic cross-sectional three-dimensional structure diagram of the collecting frame of the present invention.

Fig. 4 is an enlarged schematic perspective view of the position a of the present invention.

Fig. 5 is a schematic perspective view of the protection distribution transformer according to the present invention.

Fig. 6 is a schematic perspective view of the centrifugal power component of the present invention.

Fig. 7 is a schematic perspective view of a spoiler assembly according to the present invention.

FIG. 8 is a schematic perspective view of an air-washed cross-sectional component of the present invention.

Fig. 9 is a schematic perspective view of the air-washing component of the present invention.

In the reference symbols: 1-bottom frame, 2-support frame, 3-hollow frame, 4-screen plate, 5-turbulence component, 51-mounting seat, 52-turbulence plate, 6-air inlet frame, 7-baffle, 8-collection frame, 801-outlet pipe, 9-air outlet hole, 10-fixed fan blade frame, 11-centrifugal block, 12-mounting block, 13-mounting plate, 14-inclined groove, 15-telescopic frame, 16-movable frame, 17-connecting frame, 18-trapezoidal block, 19-positioning frame, 20-pushing plate, 21-telescopic plate, 22-containing box, 23-square frame, 24-filter shell, 25-filter piece, 26-rubber sealing block and 27-distribution transformer.

Detailed Description

The following further describes the technical solution with reference to specific embodiments, and it should be noted that: the words upper, lower, left, right, and the like used herein to indicate orientation are merely for the location of the illustrated structure in the corresponding figures. The serial numbers of the parts are themselves numbered herein, for example: first, second, etc. are used solely to distinguish one from another as to objects described herein, and do not have any sequential or technical meaning. The application states that: the connection and coupling, unless otherwise indicated, include both direct and indirect connections (couplings).

Example 1

A safety device suitable for a distribution transformer is disclosed, as shown in figures 1-7, comprising a bottom frame 1, a support frame 2 is arranged at the top of the bottom frame 1, a hollow frame 3 is fixedly connected at the top of the support frame 2, a through hole is arranged at the lower part of the hollow frame 3, a screen plate 4 is embedded at the upper part of the bottom frame 1, a turbulence component 5 is arranged at the bottom in the bottom frame 1, the turbulence component 5 is used for disorderly distributing air flow entering the bottom frame 1, the air circulating in the bottom frame 1 is in a disorderly flowing state, so as to reduce the flow rate of the air in the bottom frame 1, further the pressure in the bottom frame 1 is greater than the pressure at the upper side of the hollow frame 3 to generate pressure difference, the air flow in the bottom frame 1 upwards flows and takes away heat generated when a distribution transformer 27 works, an air inlet frame 6 is arranged at the top in the bottom frame 1, a baffle 7 is rotatably connected between the support frame 2 and the bottom frame 1, and the baffle 7 is arranged in an eccentric rotating state, the peripheral baffle 7 is matched to form a protective frame after rotating to protect a distribution transformer 27, two collecting frames 8 are connected to the left and right parts of the hollow frame 3 in a sliding mode, the top of each collecting frame 8 is flush with the top of the hollow frame 3, two discharging pipes 801 are embedded in the front and back walls of the hollow frame 3, the discharging pipes 801 on the front and back sides are communicated with the adjacent collecting frame 8, air outlet holes 9 are formed in the left and right walls of each collecting frame 8, the air outlet holes 9 are located on the upper side of the bottom in the collecting frame 8, the thickness of the bottom in the collecting frame 8 is gradually increased from the front and back sides to the middle, sand and dust in the collecting frame 8 flow to the front and back sides and flow out through the discharging pipes 801, the problem that the sand and dust in the collecting frame 8 do not pass through the air outlet holes 9 in windy weather, so that the sand and dust enter the hollow frame 3 is avoided, and the hollow frame 3 is connected with a fixed fan frame 10 in a rotating mode, the lower part of the fixed fan blade frame 10 is connected with four centrifugal blocks 11 in a sliding way, the four centrifugal blocks 11 are distributed circumferentially by taking the axial lead of the fixed fan blade frame 10 as a central point, a tension spring is fixedly connected between the centrifugal blocks 11 and the fixed fan blade frame 10, the lower end of the fixed fan blade frame 10 is connected with a mounting block 12 in a sliding way through a spline rod, a pull rope is fixedly connected between the centrifugal blocks 11 and the mounting block 12, the pull rope is connected with the fixed fan blade frame 10 in a sliding manner, the mounting block 12 is connected with a mounting plate 13 in a rotating manner, the mounting plate 13 is provided with inclined grooves 14 distributed at equal intervals in the circumferential direction, the bottom of the mounting plate 13 is fixedly connected with a telescopic frame 15, the telescopic frame 15 is fixedly connected with the bottom of the hollow frame 3 through a fixing frame, four moving frames 16 distributed at equal intervals in the circumferential direction are connected with the bottom of the hollow frame 3 in a sliding manner, the upper end of each moving frame 16 is connected with a connecting frame 17, the lower end of each moving frame 16 is fixedly connected with a trapezoidal block 18, the bottom of the hollow frame 3 is fixedly connected with positioning frames 19 with the same number as the moving frames 16, the positioning frames 19 arranged at equal intervals in the circumferential direction are positioned outside the mounting plate 13, the positioning frames 19 and the adjacent connecting frames 17 are fixedly connected with springs, the upper part of the baffle 7 at the same side are connected with a push plate 20 in a rotating manner through connecting blocks, the push plate 20 is fixedly connected with telescopic plates 21, the telescopic plates 21 are fixedly connected with the adjacent trapezoidal blocks 18 in the bottom of the hollow frame 3 in a rotating manner, the fixed fan blade frame 10 is blown by wind, the rotation, the fixed fan blade frame 10 rotates to enable the centrifugal block 11 to generate centrifugal force to move outwards, the centrifugal block 11 to move upwards through the mounting plate 13, the mounting plate 13 moves through the inclined grooves 14 and the connecting frame 17 to be matched with the baffle plates 18 to drive the baffle plates to move, the baffle plates 18 to move towards the baffle plates 7, because the baffle 7 is set to be in an eccentric state, the baffle 7 can be pushed by wind power in the rotating process, so that the baffle 7 is accelerated to rotate and cooperate to form a protective frame for protecting the distribution transformer 27.

As shown in fig. 7, the spoiler assembly 5 includes a mounting base 51, the mounting base 51 is fixedly connected to the bottom of the bottom frame 1, the mounting base 51 is rotatably connected to a spoiler 52, the thickness of the spoiler 52 gradually increases from the middle to both sides, the thickness of the spoiler 52 gradually decreases from the lower side to the upper side, the spoiler 52 disturbs air entering the bottom frame 1 and guides the air upwards, the spoiler 52 is provided with an air hole, and a torsion spring is fixedly connected between the spoiler 52 and the mounting base 51.

In the weather of wind and sand, wind flow drives the fixed fan blade frame 10 to rotate, the fixed fan blade frame 10 rotates to enable the installation block 12 to rotate through the spline rod, the fixed fan blade frame 10 rotates to drive the centrifugal block 11 to move circumferentially, centrifugal force generated in the circumferential movement process of the centrifugal block 11 enables the centrifugal block 11 to be far away from the sliding frame, a tension spring on the centrifugal block 11 is stretched accordingly, the centrifugal block 11 moves to drive the installation block 12 to move upwards through the pull rope, the installation block 12 moves to drive the installation plate 13 to move, when wind flow drives sand to move, wind at the moment blows the fixed fan blade frame 10 to rotate with acceleration, the centrifugal block 11 continues to move towards the direction far away from the sliding frame, so that the installation plate 13 is pulled to remove the limit on the trapezoidal block 18, the installation plate 13 moves upwards to be matched with the connecting frame 17 through the inclined groove 14, the peripheral connecting frame 17 moves towards the installation block 12, springs on the connecting frame 17 stretch accordingly, the connecting frame 17 moves to enable the trapezoidal block 18 to move through the moving frame 16, the trapezoidal block 18 moves to enable the baffle 7 to rotate through the expansion plate 21 and the baffle 7 rotates to form a protection frame 27, the distribution transformer 27, the distribution transformer is prevented from being damaged, the distribution transformer 27, the distribution transformer can not be damaged when the distribution transformer 7, the distribution transformer is rotated, and the distribution transformer 27, the distribution transformer can not be damaged, and the distribution transformer can be reduced after the distribution transformer 17 is connected to be connected to the distribution transformer, and the distribution transformer 7.

When wind flows from the upper side of the hollow frame 3, because no object blocks the flow of the wind, the flow velocity of the wind is faster, according to Bernoulli's theorem, the pressure intensity of the wind is smaller when the flow velocity of the wind is faster, the pressure intensity of the wind is larger when the flow velocity of the wind is slower, after the wind enters the bottom frame 1, the wind is blocked and guided by the spoiler 52, and the spoiler 52 which is arranged in disorder makes the wind flow state in the bottom frame 1 different, so the wind flow velocity in the bottom frame 1 is slower, the wind flow velocity on the upper side of the hollow frame 3 is faster, so that the pressure difference is generated between the bottom frame 1 and the hollow frame 3, meanwhile, the hollow frame 3 blocks sand and stones, through the pressure difference generated between the hollow frame 3 and the bottom frame 1, the air in the bottom frame 1 naturally flows upwards through the air inlet frame 6, the screen plate 4, the protective frame, the hollow frame 3, the air outlet hole 9 and the collecting frame 8, in this process, because the thickness of spoiler 52 is increased to both sides by the middle part gradually, and the thickness of spoiler 52 is by downside to the upside reduce gradually, upward water conservancy diversion air when spoiler 52 is to the wind vortex, the heat that distribution transformer 27 during operation produced will be taken away in the air upflow, thereby make distribution transformer 27 work in suitable environment all the time, when wind flows from hollow frame 3 upside, partial gravel and sand and dust can fall into in collecting the frame 8, because the thickness of bottom increases gradually by both sides to the middle part in collecting the frame 8, gravel and sand in collecting the frame 8 flows out through discharging pipe 801 to both sides outflow, avoid collecting gravel and sand in the frame 8 and not crossing venthole 9, lead to collecting gravel and sand in the frame 8 and get into in the hollow frame 3.

Example 2

On the basis of embodiment 1, as shown in fig. 8 and 9, the dust-washing device further comprises a containing box 22, the containing box 22 is fixedly connected in the air inlet frame 6, a square frame 23 is fixedly connected to the lower portion of the containing box 22, a filter shell 24 is fixedly connected to the upper portion of the square frame 23, a gap is reserved between the top of the square frame 23 and the inner top of the filter shell 24 and used for air flowing, a through hole is formed in the bottom of the filter shell 24, liquid is filled in the containing box 22, and the liquid level of the liquid is located on the upper side of the through hole of the filter shell 24 and used for washing dust in air.

As shown in fig. 2, a filter 25 is further included, and the filter 25 is provided with a bottom of the mesh plate 4 for filtering moisture in the air.

In the square frame 23 of the air in the underframe 1 upwards flowing into, the air in the square frame 23 holds the case 22 through straining shell 24 and the through-hole inflow above that, owing to hold the incasement 22 intussuseption and be filled with liquid, and the liquid level of liquid is located the through-hole upside of straining shell 24, the air that contains the sand blown by the wind gets into the protective frame through the washing, have sand blown by the wind and dust in the air of avoiding getting into the protective frame, and the air after the washing upwards filters 25 filtering steam through straining, avoid the steam corrosion distribution transformer 27 in the air.

As shown in fig. 1, the protective frame further comprises a rubber sealing block 26, the rubber sealing block 26 is arranged on the upper portion of the hollow frame 3 and sleeved outside a wire of the distribution transformer 27 to enhance the sealing performance between the wire and the hollow frame 3, and sealing strips are arranged on one side of the support frame 2, which is matched with the baffle 7, and one side of the support frame, which is matched with the adjacent baffle 7, and are used for enhancing the sealing performance between the support frame 2, the baffle 7 and the adjacent baffle 7 and preventing external dust from entering the protective frame formed by the baffle 7 in a matching manner.

The above description is only an example of the present invention and is not intended to limit the present invention. All equivalents which come within the spirit of the invention are intended to be embraced therein. Details not described herein are within the skill of those in the art.

Claims

1. A safety device suitable for a distribution transformer is characterized by comprising a bottom frame (1), a support frame (2) is installed at the top of the bottom frame (1), a hollow frame (3) is fixedly connected to the top of the support frame (2), a through hole is formed in the lower portion of the hollow frame (3), a screen plate (4) is arranged on the upper portion of the bottom frame (1), a turbulence component (5) used for reducing air flow rate is arranged on the inner bottom portion of the bottom frame (1), an air inlet frame (6) is installed at the inner top portion of the bottom frame (1), a baffle (7) is rotatably connected between the support frame (2) and the bottom frame (1), the baffle (7) is set in an eccentric rotating state, a collecting frame (8) is symmetrically and slidably connected in the hollow frame (3), discharge pipes (801) communicated with the collecting frame (8) are symmetrically embedded in the hollow frame (3), air outlet holes (9) are symmetrically formed in the side wall of the collecting frame (8), a fixed fan blade frame (10) is rotatably connected with the hollow frame (3), a fixed fan blade frame (10) is circumferentially and connected with a centrifugal block (11) in a fixed blade frame (10) in a fixed manner, a pull rope (12) is fixedly connected between the lower end of the fixed fan blade frame (10) and a centrifugal block (12) is fixedly connected with a centrifugal fan blade (10) through a pull rope, mounting block (12) rotate to be connected with mounting panel (13), mounting panel (13) circumference equidistance is provided with inclined groove (14), mounting panel (13) bottom rigid coupling has expansion bracket (15), expansion bracket (15) and hollow frame (3) bottom pass through the mount rigid coupling, bottom circumference equidistance sliding connection has movable rack (16) in hollow frame (3), movable rack (16) upper end rigid coupling has link (17), movable rack (16) lower extreme rigid coupling has trapezoidal piece (18), bottom circumference equidistance rigid coupling has locating rack (19) the same with movable rack (16) quantity in hollow frame (3), locating rack (19) that circumference equidistance set up are located mounting panel (13) outside, the rigid coupling has the spring between locating rack (19) and adjacent link (17), homonymy baffle (7) upper portion is connected with slurcam (20) through the connecting block rotation, slurcam (20) rigid coupling has expansion plate (21), the expansion plate (21) and adjacent trapezoidal piece (18) rigid coupling, baffle (7) rotate and form protective frame protection distribution transformer (27), make the lower side of protection transformer lower differential pressure produce the air flow rate (27) and flow upward.

2. A safety device for a distribution transformer according to claim 1, characterized in that the spoiler assembly (5) is arranged in a disordered manner, the spoiler assembly (5) being adapted to disturb the air flowing in the bottom frame (1).

3. A safety device for distribution transformers according to claim 1, characterized in that the thickness of the bottom part inside the collecting frame (8) increases from the sides towards the middle part for the outflow of sand and stones inside the collecting frame (8).

4. A safety device for distribution transformers according to claim 3, characterized in that the outlet openings (9) are located at the upper side of the bottom inside the collecting frame (8), the top of the collecting frame (8) being flush with the top of the hollow frame (3).

5. A safety device for a distribution transformer according to claim 1, wherein the spoiler assembly (5) comprises a mounting base (51), the mounting base (51) is fixed to the bottom of the bottom frame (1), the mounting base (51) is rotatably connected to a spoiler (52), the spoiler (52) is provided with an air hole, and a torsion spring is fixed between the spoiler (52) and the mounting base (51).

6. A safety device for distribution transformers according to claim 5, characterized in that the thickness of the spoiler (52) increases from the middle to both sides and the thickness of the spoiler (52) decreases from the lower side to the upper side for guiding air upwards.

7. A safety device for distribution transformers according to claim 5, characterized in that it further comprises a container (22), the container (22) is fixed in the air inlet frame (6), a square frame (23) is fixed at the lower part of the container (22), a filter shell (24) is fixed at the upper part of the square frame (23), and the bottom of the filter shell (24) is provided with a through hole.

8. A safety device for distribution transformers according to claim 7, characterized in that the tank (22) is filled with a liquid, the level of which is located above the through holes of the filter housing (24) for washing the air with dust.

9. A safety device for a distribution transformer according to claim 7, further comprising a filter element (25), the filter element (25) being provided with a bottom portion of the mesh (4), the filter element (25) being adapted to filter moisture from the air.

10. A safety device for distribution transformers according to claim 9, further comprising a rubber sealing block (26), wherein the rubber sealing block (26) is disposed on the upper portion of the hollow frame (3) and sleeved outside the wires of the distribution transformer (27) for enhancing the sealing performance between the wires and the hollow frame (3), and sealing strips are disposed on both the side of the support frame (2) engaged with the baffle (7) and the side engaged with the adjacent baffle (7) for enhancing the sealing performance between the support frame (2) and the baffle (7) and the adjacent baffle (7).