CN112993831A - Solid insulation looped netowrk cabinet - Google Patents
Solid insulation looped netowrk cabinet Download PDFInfo
- Publication number
- CN112993831A CN112993831A CN202110483211.5A CN202110483211A CN112993831A CN 112993831 A CN112993831 A CN 112993831A CN 202110483211 A CN202110483211 A CN 202110483211A CN 112993831 A CN112993831 A CN 112993831A
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- Prior art keywords
- central shaft
- filter cartridge
- filter
- fixed
- adsorption
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
Abstract
The invention relates to the field of power equipment, and particularly discloses a solid insulation ring main unit. The device comprises a cabinet body and a seal box, wherein the cabinet body is provided with an opening and a filtering unit, the filtering unit comprises a filter cartridge, a central shaft, an exhaust assembly and a plurality of adsorption blocks, and the exhaust assembly is communicated with the inner cavity of the cabinet body; the filter cartridge is opposite to the opening, the central shaft is positioned in the filter cartridge and is coaxial with the filter cartridge, and the central shaft is rotationally connected with the filter cartridge; a plurality of pressing blocks are distributed on the central shaft along the axial direction of the central shaft, one end of each pressing block, which is far away from the central shaft, is abutted against the inner wall of the filter cartridge, a plurality of air holes which can be sealed by the pressing blocks are arranged on the filter cartridge, the plurality of air holes are distributed on two sides of the filter cartridge, and the air holes are communicated with the openings; the adsorption blocks are positioned in the filter cartridge, the pore diameter of the air holes is smaller than the particle diameter of the adsorption blocks, and a filter gap is formed between every two adjacent adsorption blocks. The solid insulation ring main unit can filter dust so as to prevent the dust from entering the ring main unit.
Description
Technical Field
The invention relates to the field of power equipment, in particular to a solid insulation ring main unit.
Background
The ring main unit is an electrical device which is formed by a group of high-voltage switch devices arranged in a metal or nonmetal insulating cabinet body or made into an assembled interval ring main power supply unit, and the core of the ring main unit is a load switch and a fuse. The solid insulation ring main unit is one of ring main units, wherein the solid insulation ring main unit is formed by taking a solid insulation material as an insulation medium to coat a bus and a high-voltage switch to form a seal box, and then the seal box is arranged in the ring main unit. The looped netowrk cabinet can produce the heat in the use, so need dispel the heat to the looped netowrk cabinet, mainly dispel the heat through setting up the thermovent on the cabinet body of looped netowrk cabinet at present, but when the gas flow of external world is slower, the radiating effect of looped netowrk cabinet is relatively poor. In addition, when dust exists in the environment of the ring main unit, the dust easily enters the main unit body, and therefore electrical elements in the main unit body are damaged.
Disclosure of Invention
The invention aims to provide a solid insulation ring main unit for filtering dust so as to prevent the dust from entering the ring main unit.
In order to achieve the purpose, the invention adopts the following technical scheme: a solid insulation ring main unit comprises a main body and a seal box, wherein the seal box is fixed in the main body, an opening is arranged on the main body, a filtering unit is arranged on the main body, the filtering unit comprises a filter cartridge, a central shaft, an exhaust assembly and a plurality of adsorption blocks, and the exhaust assembly is communicated with an inner cavity of the main body; the filter cartridge is opposite to the opening and is transversely fixed on the cabinet body, the central shaft is positioned in the filter cartridge and is coaxial with the filter cartridge, and the central shaft is rotationally connected with the filter cartridge; a plurality of pressing blocks are distributed on the central shaft along the axial direction of the central shaft, one end of each pressing block, which is far away from the central shaft, is abutted against the inner wall of the filter cartridge, a plurality of air holes which can be sealed by the pressing blocks are arranged on the filter cartridge, the plurality of air holes are distributed on two sides of the filter cartridge, and the air holes are communicated with the openings; the adsorption blocks are positioned in the filter cartridge, the pore diameter of the air holes is smaller than the particle diameter of the adsorption blocks, and a filter gap is formed between every two adjacent adsorption blocks.
The beneficial effect of this scheme does:
the exhaust assembly in this scheme is used for discharging the internal gas of cabinet, makes the internal pressure of cabinet reduce, makes external gas get into the cabinet internal to make the internal heat of cabinet overflow and scatter. When gaseous entering cabinet body, earlier through the opening with the opening relative bleeder vent get into the cartridge filter in, the bleeder vent from the cartridge filter opposite side gets into the cabinet body again, at this in-process, the bleeder vent can carry out prefilter to gas, avoids mixing the great dust of particle size in gas and gets into the cabinet body to avoid the dust adhesion to lead to electrical components to damage on the internal electrical components of cabinet. The gas flows along filtering gap after getting into the cartridge filter, and at the flow in-process, the dust in the gas subsides gradually, filters the gap once more to gas promptly, improves the effect of cleaing away to the dust, avoids external dust to get into the cabinet internal.
Furthermore, the adsorption block is a sponge block, and adsorption liquid is attached to the adsorption block.
The beneficial effect of this scheme does: there are a plurality of gaps in the sponge piece, and the gas permeability is better, can be better filter gas, and also can absorb the adsorption liquid in the sponge piece, and when gas passed the sponge piece, the dust can adhere in the sponge piece, further improves the filter effect to gas.
Furthermore, a plurality of flexible nets are arranged in the filter cylinder along the circumferential direction, the flexible nets extend along the axial direction of the central shaft, and the plurality of adsorption blocks are distributed in the plurality of flexible nets; a liquid inlet channel is arranged in the central shaft, one end of the liquid inlet channel is rotatably connected with a fixed disc, a rotating shaft is fixed on the fixed disc, the rotating shaft penetrates through the central shaft and the side wall of the filter cartridge and is rotatably sealed with the central shaft and the filter cartridge, and a driving piece connected with the rotating shaft is fixed on the cabinet body; the side wall of the central shaft is provided with an inlet communicated with the liquid inlet channel, and one end of the flexible net extends into the liquid inlet channel from the inlet and is fixed on the fixed disc; the other end of the flexible net is fixed with a dovetail groove, a plurality of dovetail grooves are formed in the central shaft in the circumferential direction, the dovetail grooves extend in the axial direction of the central shaft and correspond to the dovetail blocks one to one, the dovetail blocks are located in the dovetail grooves and are in sliding connection with the dovetail grooves, elastic ropes are arranged in the dovetail grooves, and two ends of each elastic rope are fixed to the side walls of the dovetail blocks and the central shaft respectively.
The beneficial effect of this scheme does: when the fixed disk rotates, the flexible net can be twisted, so that the adsorption liquid in the adsorption block flows out, the adsorption liquid in the adsorption block wraps the dust in the adsorption block, and the dust in the adsorption block is convenient to remove. Because the fixed disk is positioned in the liquid inlet channel, the adsorption liquid flowing out of the flexible net is mainly gathered in the liquid inlet channel, and is convenient to discharge uniformly. When the fixed disk loosens the flexible net, the elastic rope automatically pulls out the flexible net, so that the adsorption blocks in the flexible net are reset.
Furthermore, one end of the central shaft, which is far away from the fixed disc, is communicated with a liquid inlet pipe.
The beneficial effect of this scheme does: the adsorption liquid can be more conveniently added into the liquid inlet channel through the liquid inlet pipe.
Furthermore, the baffle block is provided with a through groove extending along the axial direction of the central shaft, and the flexible net and the dovetail groove opposite to the baffle block both penetrate through the through groove.
The beneficial effect of this scheme does: the logical groove in this scheme can avoid the dog to cause the hindrance to flexible net.
Furthermore, one end of the central shaft close to the fixed disc is communicated with a liquid discharge pipe.
The beneficial effect of this scheme does: compared with the liquid outlet, the adsorption liquid mixed with dust in the liquid inlet channel can be more conveniently discharged through the liquid outlet pipe.
Further, the cartridge filter outer wall is fixed with two mounting panels, and two mounting panels are located the both sides of cartridge filter respectively.
The beneficial effect of this scheme does: because the mounting panel is fixed with the cartridge filter, so fix the mounting panel and can carry on spacingly to the cartridge filter, compare with the cartridge filter of tube-shape, it is more convenient, easy to assemble to fix the mounting panel.
Furthermore, the inlets are arranged in a plurality of distributed along the circumferential direction of the central shaft, and the inlets correspond to the flexible nets one by one.
The beneficial effect of this scheme does: the entry can be spacing to the flexible net, avoids the flexible net to take place the winding.
Drawings
FIG. 1 is an elevational vertical cross-sectional view of a filter unit in accordance with example 1 of the present invention, with the flexible web not being pulled;
fig. 2 is a cross-sectional view taken along line a-a of the flexible web of fig. 1 when pulled.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the cabinet body 1, the opening 11, the filter cartridge 2, the air vent 21, the mounting plate 22, the central shaft 3, the dovetail groove 31, the liquid inlet channel 32, the dovetail block 33, the inlet 34, the adsorption block 4, the stop block 5, the through groove 51, the elastic rope 6, the fixed disc 7 and the rotating shaft 71.
Example 1
The utility model provides a solid insulation looped netowrk cabinet, includes the cabinet body and seal box, and the seal box passes through the bolt fastening and is internal at the cabinet, as shown in fig. 1, is equipped with opening 11 and is equipped with the filter unit on the cabinet body 1, and is concrete, and opening 11 and filter unit all are located the upper end of the cabinet body 1. The filter unit includes cartridge filter 2, center pin 3, exhaust subassembly and a plurality of absorption piece 4, and the exhaust subassembly includes two exhaust fans, and exhaust fan passes through the bolt fastening on the cabinet body 1, and exhaust fan's inlet end and the space intercommunication in the cabinet body 1, exhaust fan's the end of giving vent to anger splice and have the blast pipe, and the one end that exhaust fan was kept away from to the blast pipe runs through the cabinet body 1 and extends to outside the cabinet body 1.
The filter cartridge 2 is opposite to the opening 11, and the filter cartridge 2 is arranged in the cabinet body 1; the mounting panel 22 has all been welded to cartridge filter 2's top and bottom, is equipped with the fixed orifices on the mounting panel 22, and when installing cartridge filter 2, two mounting panels 22 are pasted the back with cabinet body 1 inner wall mutually, pass the fixed orifices after with the bolt and fix on cabinet body 1's inner wall.
The left wall and the right wall of the filter cartridge 2 are both provided with a plurality of ventilation components, and taking the ventilation component on the left side as an example, the ventilation components comprise a plurality of ventilation holes 21 distributed along the axial gap of the filter cartridge 2. The central shaft 3 is disposed in the filter cartridge 2, the central shaft 3 and the filter cartridge 2 in this embodiment are coaxial, and as shown in fig. 2, the upper end of the filter cartridge 2 is disposed with a limiting groove, the upper end of the central shaft 3 is disposed in the limiting groove, and the side wall of the limiting groove is attached to the outer wall of the central shaft 3, so that the central shaft 3 can rotate relative to the filter cartridge 2. The lower end of the central shaft 3 is welded with a fixed block, the fixed block is attached to the lower end of the filter cylinder 2, the lower end of the filter cylinder 2 is provided with a first threaded hole and a second threaded hole along the circumferential direction of the central shaft 3, the fixed block is provided with a third threaded hole, after the central shaft 3 rotates, the third threaded hole can be sequentially opposite to the first threaded hole and the second threaded hole, and when the third threaded hole is opposite to the first threaded hole, the stop block 5 is opposite to the air vent 21 to seal the air vent 21; when the third threaded hole is opposite to the second threaded hole, the stopper 5 no longer closes the breather hole 21.
A plurality of stop blocks 5 are welded on the central shaft 3 along the axial direction, the stop blocks 5 correspond to the ventilating assemblies one by one, and one ends, far away from the central shaft 3, of the stop blocks 5 are abutted to the inner wall of the filter cartridge 2, so that the air holes 21 are sealed. Be equipped with inlet channel 32 in the center pin 3, inlet channel 32's upper end is equipped with fixed disk 7, the top welding of fixed plate has pivot 71, the upper end of pivot 71 runs through and strains 2 lateral walls and with cartridge filter 2 rotation seal, there is the driving piece through the bolt fastening on the cabinet body 1, the driving piece in this embodiment adopts current positive and negative motor that changes, the output shaft of driving piece passes through the shaft coupling and is connected with the upper end of pivot 71 for drive fixed disk 7 rotates.
The bottom of fixed disk 7 has 12 flexible nets along circumference rubber joint, and the flexible net in this embodiment adopts the nylon material, and the upper end of center pin 3 is equipped with 12 entries 34 along circumference, and the lower extreme of flexible net extends to between center pin 3 and the cartridge filter 2 from 12 entries 34 respectively, is equipped with logical groove 51 on the dog 5, and the flexible net relative with dog 5 passes logical groove 51 and extends to the lower part of center pin 3. The lower end of the flexible net is glued with dovetail blocks 33, 12 dovetail grooves 31 are formed in the outer wall of the central shaft 3 along the circumferential direction, the dovetail blocks 33 correspond to the dovetail grooves 31 one by one, the dovetail blocks 33 are located in the dovetail grooves 31, and the dovetail blocks 33 are matched with the dovetail grooves 31 to guide the sliding of the flexible net. The elastic rope 6 is arranged in the dovetail groove 31, the upper end of the elastic rope 6 is connected to the lower end of the dovetail block 33 in an adhesive mode, the lower end of the elastic rope 6 is connected to the lower end of the dovetail groove 31 in an adhesive mode, in the practical implementation process, the lower end of the elastic rope 6 can penetrate through the central shaft 3 and extend to the lower end of the filter cylinder 2, and at the moment, the elastic rope 6 can be pulled downwards to enable the flexible net to reset.
Be equipped with a plurality of absorption pieces 4 in the cartridge filter 2, specifically, a plurality of absorption pieces 4 in this embodiment distribute in 12 flexible nets, and absorb piece 4 and adopt sponge material, and the particle diameter that adsorbs piece 4 is greater than the aperture of the mesh on bleeder vent 21 and the flexible net, avoids absorbing piece 4 to fall out from the flexible net, and when the flexible net did not receive the drag, formed between the adjacent absorption piece 4 and filtered the gap. The absorption block 4 is absorbed with absorption liquid, and the absorption liquid in the embodiment adopts industrial glycerin. The lower extreme of center pin 3 is connected with the feed liquor pipe through rotary joint, the upper end of cartridge filter 2 is glued there is the fluid-discharge tube, the lower extreme of fluid-discharge tube runs through and strains a section of thick bamboo 2 for the liquid in the drainage channel of discharging, all be equipped with a plurality of through-holes on the upper end of center pin 3 and the fixed disk 7, and cartridge filter 2 and center pin 3 all are the slope setting that the upper end is less than the lower extreme, make adsorption liquid flow to one side that is close to the through-hole along feed liquor channel 32, make things convenient for adsorption liquid to discharge. All be equipped with the valve on fluid-discharge tube and the feed liquor pipe, the valve in this embodiment adopts current stop valve for seal fluid-discharge tube and feed liquor pipe.
The specific implementation process is as follows:
after the seal box is installed in the cabinet body 1, the fixing rod is manually rotated to prevent the check block 5 from closing the air hole 21, and then the bolt is screwed into the aligned first threaded hole and the aligned third threaded hole to fix the central shaft 3. Then, one of the exhaust fans is started, and the exhaust fan exhausts the air in the cabinet body 1, so that the pressure in the cabinet body 1 is reduced, and the outside air is promoted to enter the cabinet body 1 from the opening 11. In the process that the gas enters the cabinet body 1, the gas firstly enters the filter cylinder 2 from the air holes 21 on the left side of the filter cylinder 2, and dust with larger particle size in the gas cannot enter the filter cylinder 2 at the moment to primarily filter the gas; gas passes through between the filter gap of adsorbing block 4 or adjacent adsorbing block 4 after getting into cartridge filter 2, and the dust in the gas is adhered on adsorbing block 4 this moment, carries out the second filtration to gas, improves the filter effect to the dust in the gas.
On the other hand, industrial glycerin has a high purity, and can absorb water vapor in gas when contacting the gas, thereby drying the gas. Compared with pure glycerin, the industrial glycerin is still liquid at normal temperature, and the use is not influenced.
After long-time use, change the absorption liquid in the cartridge filter 2 and can improve the filter effect of absorption piece 4 to gas once more. When the absorption liquid is replaced, the bolt for fixing the central shaft 3 is firstly taken down, then the central shaft 3 is rotated, the second threaded hole is opposite to the third threaded hole, the bolt is screwed in, the central shaft 3 is fixed, and at the moment, the air holes 21 are sealed by the check block 5.
Then start the driving piece, driving piece drive fixed disk 7 rotates, drives flexible net and rotates, and the upper end of a plurality of flexible nets in the inlet channel 32 takes place to twine and twist reverse, extrudees the upper end of flexible net, makes the absorption liquid in the flexible net flow out to make the dust in the absorption piece 4 along with the absorption liquid flows out, open the valve, the absorption liquid that flows out passes the through-hole and discharges from the fluid-discharge tube. And along with the torsion of the flexible net, the lower end of the flexible net gradually slides into the liquid inlet channel 32, and in the process, the dovetail block 33 slides along the dovetail groove 31 to guide the sliding of the flexible net.
After the adsorption liquid mixed with the dust completely flows out, a valve on the liquid discharge pipe is closed, new adsorption liquid is added into the liquid inlet channel 32 from the liquid inlet pipe, the rotating shaft 71 is driven to rotate reversely by the driving piece, the flexible net is gradually loosened, the lower end of the flexible net slides downwards under the action of the elastic rope 6, and the flexible net gradually slides out of the liquid inlet channel 32. When the flexible net is gradually loosened, the adsorption liquid newly added into the liquid inlet channel 32 is sucked into the adsorption block 4. The driving piece is closed after the flexible net in the liquid inlet channel 32 is not wound or twisted, the elastic rope 6 is pulled outwards manually, the flexible net is reset quickly, after the elastic rope 6 is loosened, the flexible net is not pulled, the adsorption block 4 is restored to be original shape in a natural state, and the gap between the central shaft 3 and the filter cylinder 2 is filled again.
The amount of the absorption liquid in the absorption block 4 is kept so that the absorption liquid does not drip down from the absorption block 4 when the flexible net is not pulled any more. And when the newly added adsorption liquid is too much, the driving piece is started again, the flexible net is twisted, the redundant adsorption liquid in the adsorption block 4 flows out due to extrusion of the flexible net, and the redundant adsorption liquid in the adsorption block 4 can be reduced by discharging the adsorption liquid from the liquid discharge pipe.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. The utility model provides a solid insulation looped netowrk cabinet, includes the cabinet body and seal box, the seal box is fixed at the cabinet internally, its characterized in that: the cabinet body is provided with an opening and a filtering unit, the filtering unit comprises a filter cartridge, a central shaft, an exhaust assembly and a plurality of adsorption blocks, and the exhaust assembly is communicated with the inner cavity of the cabinet body; the filter cartridge is opposite to the opening and is transversely fixed on the cabinet body, the central shaft is positioned in the filter cartridge and is coaxial with the filter cartridge, and the central shaft is rotationally connected with the filter cartridge; a plurality of pressing blocks are distributed on the central shaft along the axial direction of the central shaft, one end of each pressing block, which is far away from the central shaft, abuts against the inner wall of the filter cartridge, a plurality of air holes which can be sealed by the pressing blocks are formed in the filter cartridge, the air holes are distributed on two sides of the filter cartridge, and the air holes are communicated with the openings; the adsorption blocks are positioned in the filter cartridge, the pore diameter of the air holes is smaller than the particle diameter of the adsorption blocks, and a filter gap is formed between every two adjacent adsorption blocks.
2. The solid insulation ring main unit as claimed in claim 1, wherein: the adsorption block is a sponge block, and adsorption liquid is attached to the adsorption block.
3. The solid insulation ring main unit as claimed in claim 2, wherein: a plurality of flexible nets are arranged in the filter cylinder along the circumferential direction, the flexible nets extend along the axial direction of the central shaft, and a plurality of adsorption blocks are distributed in the flexible nets; a liquid inlet channel is arranged in the central shaft, one end of the liquid inlet channel is rotatably connected with a fixed disc, a rotating shaft is fixed on the fixed disc, the rotating shaft penetrates through the central shaft and the side wall of the filter cylinder and is rotatably sealed with the central shaft and the filter cylinder, and a driving piece connected with the rotating shaft is fixed on the cabinet body; the side wall of the central shaft is provided with an inlet communicated with the liquid inlet channel, and one end of the flexible net extends into the liquid inlet channel from the inlet and is fixed on the fixed disc; the flexible net other end is fixed with the dovetail, be equipped with a plurality of dovetails along circumference on the center pin, the axial extension of dovetail along the center pin, and dovetail and forked tail piece one-to-one, the forked tail piece be located the dovetail and with dovetail sliding connection, be equipped with the stretch cord in the dovetail, the both ends of stretch cord are fixed respectively on the lateral wall of forked tail piece and center pin.
4. The solid insulation ring main unit as claimed in claim 3, wherein: one end of the central shaft, which is far away from the fixed disc, is communicated with a liquid inlet pipe.
5. The solid insulation ring main unit as claimed in claim 4, wherein: the baffle block is provided with a through groove extending along the axial direction of the central shaft, and the flexible net and the dovetail groove opposite to the baffle block penetrate through the through groove.
6. The solid insulation ring main unit as claimed in claim 5, wherein: one end of the central shaft close to the fixed disc is communicated with a liquid discharge pipe.
7. The solid insulation ring main unit as claimed in claim 6, wherein: the filter cartridge outer wall is fixed with two mounting panels, and two mounting panels are located the both sides of cartridge filter respectively.
8. The solid insulation ring main unit as claimed in claim 3, wherein: the inlet is equipped with a plurality ofly, and a plurality of entrances distribute along the circumference of center pin, the entry corresponds with flexible net one-to-one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483211.5A CN112993831B (en) | 2021-04-30 | 2021-04-30 | Solid insulation looped netowrk cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483211.5A CN112993831B (en) | 2021-04-30 | 2021-04-30 | Solid insulation looped netowrk cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112993831A true CN112993831A (en) | 2021-06-18 |
| CN112993831B CN112993831B (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110483211.5A Active CN112993831B (en) | 2021-04-30 | 2021-04-30 | Solid insulation looped netowrk cabinet |
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| Publication number | Publication date |
|---|---|
| CN112993831B (en) | 2022-11-11 |
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