CN203859408U - Medium pressure air insulation sealing switchgear - Google Patents
Medium pressure air insulation sealing switchgear Download PDFInfo
- Publication number
- CN203859408U CN203859408U CN201420272760.3U CN201420272760U CN203859408U CN 203859408 U CN203859408 U CN 203859408U CN 201420272760 U CN201420272760 U CN 201420272760U CN 203859408 U CN203859408 U CN 203859408U
- Authority
- CN
- China
- Prior art keywords
- switchgear
- plate
- pressure
- air vent
- side plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 238000009413 insulation Methods 0.000 title claims abstract description 15
- 239000000565 sealant Substances 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims abstract description 5
- 238000013022 venting Methods 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Patch Boards (AREA)
Abstract
Disclosed is a medium pressure air insulation sealing switchgear. The switchgear comprises a front plate, a left side plate, a right side plate, and a back plate, wherein the four plates are spliced and fixed through fasteners. The front plate, the left side plate, the right side plate, and the back plate are provided with folding short edges and/or bracket joints that are used for forming a seam filling area. The switchgear is provided with sealant in the seam filling area to form a cabinet structure with permanent fixing static sealing. The switchgear is further provided with a natural pressure release balance ventilation channel groove used for achieving the self-balance principle of pressure inside and outside the sealing switchgear, so as to achieve the capability of natural pressure release balance. When a main conductor is electrified, the temperature of the switchgear body rises, and the air in the switchgear with thermal expansion and micro-positive pressure releases pressure through the natural pressure release balance ventilation channel groove, tile the pressures inside and outside the sealing cabinet of the switchgear are balanced, and ventilation inside and outside the switchgear stops, and then the goal that the switchgear is naturally isolated from the metal dusts and dirt is achieved.
Description
Technical field
The utility model relates to a kind of middle pressure air insulation sealed switch cabinet, specifically a kind of middle pressure air insulation sealed switch cabinet with nature release of pressure balanced capacity.
Background technology
Chinese patent literature CN103326258A discloses the anti-condensation sealed switch cabinet of a kind of energy on September 25th, 2013, its patent is mainly to move after a period of time for gas-insulated sealed cabinet, because of poorly sealed, moisture or dust enter the problem that affects inside switch cabinet mechanism cisco unity malfunction, because due to plum rain season, high humidity in switch cubicle and form " condensation ", so by humidity sensor and Automatic-heating dehydrating unit are set in switch cubicle, and the cooperation dehumidifying by humidity sensor and Automatic-heating solves the problem of above-mentioned " condensation ", so not only increase manufacturing cost, also because entering in switch sealed cabinet, seriously reduced fallible component the reliability of product, and the air insulation switch cubicle of most of non-tight structure is all designed with crack between a door and its frame, or there is gap in the junction of each face of cabinet, metallic dust, filth all can enter in switch cubicle because gaseous exchange sees through these gaps, not only cover impact heat radiation on main electric conductor, and also can reduce the dielectric strength in cabinet under moist condition, the huge safe hidden danger such as pollution flashover will be brought.Therefore, be necessary to develop a kind of middle pressure air insulation sealed switch cabinet, improve the performance of product.
Utility model content
The purpose of this utility model aims to provide a kind of simple and reasonable, dependable performance, and good sealing effect, practical, and there is the middle pressure air insulation sealed switch cabinet of nature release of pressure balanced capacity, to overcome weak point of the prior art.
By a kind of middle pressure air insulation sealed switch cabinet of this object design, comprise header board, left side plate and rear plate, between header board, left side plate and rear plate, mutually splice and fix by securing member, it is characterized in that: between header board, left side plate and rear plate, be provided with bending minor face and/or gusset and be formed with seam by bending minor face and/or gusset and fill out envelope region, switch cubicle arranges fluid sealant on region and forms the body structure that is permanently fixed static seal by fill out envelope in seam; On described switch cubicle, be also provided with the natural release of pressure balance venting channels groove of realizing the inside and outside air pressure self-balancing of sealed switch cabinet principle, make switch cubicle there is nature release of pressure balanced capacity.
On described switch cubicle, be provided with nature release of pressure balance venting channels groove, air vent hole outlet and air vent hole import; Nature release of pressure balance venting channels groove is arranged between air vent hole outlet and air vent hole import.
Described natural release of pressure balance venting channels groove is provided with filtering material by case, and filtering material is fixed between air vent hole outlet and air vent hole import; Described case surface is provided with some air vent holes.
Before described header board, be provided with the connecting hole coordinating with pre action mechanism, connecting hole forms movable sealing by the sealing means of sealing ring, labyrinth seal or liquid gasket.
On described header board, be provided with left plate and right panel, left plate and right panel are provided with the reserved expansion mouthful for expansion to the left and right sides, and when it does not implement to expand with the left cover on switch cubicle, right cover plate by fluid sealant and fixed screw respectively fixing, cap seal on the reserved expansion mouth of left plate and right panel
The utility model is by the design of said structure, between header board, left side plate and rear plate, be provided with bending minor face and/or gusset and be formed with seam by bending minor face and/or gusset and fill out envelope region, switch cubicle arranges fluid sealant on region and forms the body structure that is permanently fixed static seal by fill out envelope in seam; On described switch cubicle, be also provided with the natural release of pressure balance venting channels groove of realizing its inside and outside air pressure balance, after main energising body energising in switch cubicle heats up, after expanded by heating in the cabinet of pressure-fired air by the outside slow release of pressure of natural release of pressure balance venting channels groove, until the inside and outside air pressure of sealed switch cabinet reaches isobaric and in balance stable state; Now it is inside and outside without gaseous exchange, thereby reach and metallic dust, the filthy object of isolation naturally, clean, clean in maintained switch cabinet, effectively maintained the dielectric strength of product in life cycle, thereby eliminated because of generation filthy, that moisture conditions causes the potential safety hazards such as pollution flashover; And clean in case, clean environment can improve the ability of resisting phase-to phase fault effectively, eliminated filthy, moisture conditions and caused that pollution flashover produces and phase-to phase fault produces, keep the dielectric strength level of long-time running.It has simple and reasonable, dependable performance, good sealing effect, the feature such as practical.
Accompanying drawing explanation
Fig. 1 is the utility model one example structure schematic diagram.
Fig. 2 is A place structure for amplifying schematic diagram in Fig. 1.
Fig. 3 is nature release of pressure balance venting channels groove structural representation.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 1-Fig. 3, in this, press air insulation sealed switch cabinet, comprise header board 1, left side plate and rear plate 4, between header board 1, left side plate and rear plate 4, mutually splice and fix by securing member, between header board 1, left side plate and rear plate 4, be provided with bending minor face 1.1 and/or gusset and be formed with seam by bending minor face 1.1 and/or gusset and fill out envelope region, switch cubicle arranges fluid sealant on region and forms the body structure that is permanently fixed static seal by fill out envelope in seam; On described switch cubicle, be also provided with the natural release of pressure balance venting channels groove 7 of realizing the inside and outside air pressure self-balancing of sealed switch cabinet principle, make switch cubicle there is nature release of pressure balanced capacity.
Specifically, on switch cubicle, be provided with nature release of pressure balance venting channels groove 7, air vent hole outlet 1.3 and air vent hole import; Nature release of pressure balance venting channels groove 7 is arranged between air vent hole outlet 1.3 and air vent hole import.Nature release of pressure balance venting channels groove 7 is provided with filtering material 6 by case 5, and filtering material 6 is fixed between air vent hole outlet 1.3 and air vent hole import; Described case 5 surfaces are provided with some air vent holes.
The B above of header board 1 is provided with the connecting hole 1.2 coordinating with pre action mechanism, and connecting hole 1.2 forms movable sealing by the sealing means of sealing ring, labyrinth seal or liquid gasket.
On header board 1, be provided with left plate 2 and right panel 3, left plate 2 and right panel 3 are provided with the reserved expansion mouthful for expansion to the left and right sides, and when it does not implement to expand with the left cover on switch cubicle, right cover plate by fluid sealant and fixed screw respectively fixing, cap seal on the reserved expansion mouth of left plate 2 and right panel 3.
Useful result of the present utility model is: the switch cubicle of sealing is because of natural release of pressure balance, make its inside and outside air pressure reach isobaric and when balance stable state, and not convection current of inside and outside air, there will not be non-tight formula switch cubicle in prior art to cause metallic dust, filthy entering because of convection current, clean, clean in maintained switch cabinet, effectively maintained the dielectric strength of product in life cycle, thereby eliminated because of generation filthy, that moisture conditions causes the potential safety hazards such as pollution flashover; And clean in case, clean environment can improve the ability of resisting phase-to phase fault effectively, keeps the dielectric strength level of long-time running.
Above-mentioned is preferred version of the present utility model, and those of ordinary skills are to its simple modification or transformation, within all dropping on protection range of the present utility model.
Claims (5)
1. press air insulation sealed switch cabinet in one kind, comprise header board (1), left side plate and rear plate (4), between header board (1), left side plate and rear plate (4), mutually splice and fix by securing member, it is characterized in that: between header board (1), left side plate and rear plate (4), be provided with bending minor face (1.1) and/or gusset and be formed with seam by bending minor face (1.1) and/or gusset and fill out envelope region, switch cubicle arranges fluid sealant on region and forms the body structure that is permanently fixed static seal by fill out envelope in seam; On described switch cubicle, be also provided with the natural release of pressure balance venting channels groove (7) of realizing the inside and outside air pressure self-balancing of sealed switch cabinet principle, make switch cubicle there is nature release of pressure balanced capacity.
2. middle pressure air insulation sealed switch cabinet according to claim 1, is characterized in that being provided with on described switch cubicle nature release of pressure balance venting channels groove (7), air vent hole outlet (1.3) and air vent hole import; Nature release of pressure balance venting channels groove (7) is arranged between air vent hole outlet (1.3) and air vent hole import.
3. middle pressure air insulation sealed switch cabinet according to claim 2, it is characterized in that described natural release of pressure balance venting channels groove (7) is provided with filtering material (6) by case (5), filtering material (6) is fixed between air vent hole outlet (1.3) and air vent hole import; Described case (5) surface is provided with some air vent holes.
4. middle pressure air insulation sealed switch cabinet according to claim 3, it is characterized in that described header board (1) before (B) be provided with the connecting hole (1.2) coordinating with pre action mechanism, the sealing means of connecting hole (1.2) by sealing ring, labyrinth seal or liquid gasket forms movable sealing.
5. middle pressure air insulation sealed switch cabinet according to claim 4, it is characterized in that being provided with on described header board (1) left plate (2) and right panel (3), left plate (2) and right panel (3) are provided with the reserved expansion mouthful for expansion to the left and right sides, and when it does not implement to expand with the left cover on switch cubicle, right cover plate by fluid sealant and fixed screw respectively fixing, cap seal on the reserved expansion mouth of left plate (2) and right panel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272760.3U CN203859408U (en) | 2014-05-26 | 2014-05-26 | Medium pressure air insulation sealing switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272760.3U CN203859408U (en) | 2014-05-26 | 2014-05-26 | Medium pressure air insulation sealing switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859408U true CN203859408U (en) | 2014-10-01 |
Family
ID=51609248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420272760.3U Expired - Lifetime CN203859408U (en) | 2014-05-26 | 2014-05-26 | Medium pressure air insulation sealing switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972798A (en) * | 2014-05-26 | 2014-08-06 | 赫兹曼电力（广东）有限公司 | Medium-voltage air-insulation sealed switch cabinet |
| CN105406388A (en) * | 2015-12-05 | 2016-03-16 | 海宁开关厂有限公司 | Medium-pressure air-insulated and sealed switch cabinet |
-
2014
- 2014-05-26 CN CN201420272760.3U patent/CN203859408U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972798A (en) * | 2014-05-26 | 2014-08-06 | 赫兹曼电力（广东）有限公司 | Medium-voltage air-insulation sealed switch cabinet |
| CN105406388A (en) * | 2015-12-05 | 2016-03-16 | 海宁开关厂有限公司 | Medium-pressure air-insulated and sealed switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |