CN108631208B - Gas-insulated switchgear and insulating cover plate therefor - Google Patents
Gas-insulated switchgear and insulating cover plate therefor Download PDFInfo
- Publication number
- CN108631208B CN108631208B CN201810557092.1A CN201810557092A CN108631208B CN 108631208 B CN108631208 B CN 108631208B CN 201810557092 A CN201810557092 A CN 201810557092A CN 108631208 B CN108631208 B CN 108631208B
- Authority
- CN
- China
- Prior art keywords
- cone
- insulating cover
- gas
- cover plate
- insulated switchgear
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims 1
- 238000002679 ablation Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
Abstract
The invention relates to a gas-insulated switchgear and an insulating cover plate thereof, wherein the insulating cover plate comprises a plate body, the plate body is provided with an inner side surface which faces the inside of the gas-insulated switchgear, the inner side surface is provided with a circumferential sealing structure, the inner side surface is convexly provided with a cone positioned in the circumferential sealing structure, and the cone surface of the cone forms a drainage surface for guiding high-temperature air flow generated in the opening and closing process of the gas-insulated switchgear. Compared with the prior art, the cone protruding the plate body is arranged on the inner side surface of the insulating cover plate and is positioned in the circumferential sealing structure, so that high-temperature hot air flow generated in the switching-on and switching-off process of the gas-insulated switchgear is led through the drainage surface of the cone, the impact and ablation of the high-temperature hot air flow on the insulating cover plate are reduced, the service life of the insulating cover plate is prolonged, and the cost is reduced.
Description
Technical Field
The invention relates to a gas-insulated switchgear and an insulating cover plate thereof.
Background
The insulating cover plate is an important part of medium voltage gas insulated switchgear. The switch equipment can generate high-temperature air flow in the switching-on and switching-off process, and the high-temperature air flow can impact and ablate the insulating cover plate, so that the high-temperature air flow has extremely high requirements on the mechanical strength and ablation resistance of the insulating cover plate. As shown in fig. 1 and 2, the existing insulating cover plate 1 has a plate structure, the insulating cover plate 1 is provided with a fixing hole 2 for fixing the insulating cover plate 1 on a cylinder body of the switchgear and a sealing groove 3 for placing a sealing ring, an inner side surface 4 facing the inside of the switchgear is relatively flat, and in the switching-off process of the switchgear, the inner side surface 4 is relatively easy to be impacted and ablated by high-temperature air flow, so that the service life of the insulating cover plate is influenced.
Disclosure of Invention
The invention aims to provide an insulating cover plate, which solves the problems that the inner side surface of the insulating cover plate is easy to be impacted and ablated by high-temperature air flow in the switching-on and switching-off process of switch equipment in the prior art, and the service life of the insulating cover plate is influenced; the invention also aims to provide a gas-insulated switchgear using the insulating cover plate.
In order to achieve the above purpose, the technical scheme of the insulating cover plate of the invention is as follows:
the insulating cover plate comprises a plate body, the plate body is provided with an inner side surface which faces the inside of the gas-insulated switchgear, a circumferential sealing structure is arranged on the inner side surface, a cone which is located in the circumferential sealing structure is arranged on the inner side surface in a protruding mode, and a conical surface of the cone forms a drainage surface for guiding high-temperature air flow generated in the opening and closing process of the gas-insulated switchgear.
The inner side face is also convexly provided with annular protrusions which are arranged around the cone body, and the annular protrusions are arranged in the circumferential sealing structure. The annular bulge can stop the high-temperature hot air flow which is conducted from the conduction surface, and the connection position of the plate body and the cylinder body is prevented from being impacted by the high-temperature hot air flow so as to damage the sealing performance between the plate body and the cylinder body, thereby leakage of insulating gas in the cylinder body is avoided.
At least two annular protrusions are arranged along the radial direction of the cone, and annular grooves are formed by surrounding the adjacent two annular protrusions and the plate body. The hot air flowing back from the annular groove and the hot air flowing from the drainage surface are mutually impacted to generate turbulent flow so as to slow down the diffusion of the high-temperature hot air and reduce the energy of the high-temperature hot air, and the inner surface of the cylinder body is prevented from flashover.
The cone is conical. Is favorable for the drainage of high-temperature hot air flow.
The cone is arranged in the middle of the insulating cover plate.
In order to achieve the above object, the technical scheme of the gas-insulated switchgear of the present invention is:
the gas-insulated switchgear comprises a cylinder body and an insulating cover plate arranged on the cylinder body, wherein the insulating cover plate comprises a plate body, the plate body is provided with an inner side surface which faces the inside of the gas-insulated switchgear, a circumferential sealing structure is arranged on the inner side surface, a cone which is positioned in the circumferential sealing structure is convexly arranged on the inner side surface, and a conical surface of the cone forms a drainage surface for drainage of high-temperature air flow generated in the switching-on and switching-off process of the gas-insulated switchgear.
The inner side face is also convexly provided with annular protrusions which are arranged around the cone body, and the annular protrusions are arranged in the circumferential sealing structure. The annular bulge can stop the high-temperature hot air flow which is conducted from the conduction surface, and the connection position of the plate body and the cylinder body is prevented from being impacted by the high-temperature hot air flow so as to damage the sealing performance between the plate body and the cylinder body, thereby leakage of insulating gas in the cylinder body is avoided.
At least two annular protrusions are arranged along the radial direction of the cone, and annular grooves are formed by surrounding the adjacent two annular protrusions and the plate body. The hot air flowing back from the annular groove and the hot air flowing from the drainage surface are mutually impacted to generate turbulent flow so as to slow down the diffusion of the high-temperature hot air and reduce the energy of the high-temperature hot air, and the inner surface of the cylinder body is prevented from flashover.
The cone is conical. Is favorable for the drainage of high-temperature hot air flow.
The cone is arranged in the middle of the insulating cover plate.
The beneficial effects of the invention are as follows: compared with the prior art, the cone protruding the plate body is arranged on the inner side surface of the insulating cover plate and is positioned in the circumferential sealing structure, so that high-temperature hot air flow generated in the switching-on and switching-off process of the gas-insulated switchgear is led through the drainage surface of the cone, the impact and ablation of the high-temperature hot air flow on the insulating cover plate are reduced, the service life of the insulating cover plate is prolonged, and the cost is reduced. In addition, the cone can also play a role in reinforcing the insulating cover plate, so that the impact resistance of the insulating cover plate is improved.
Drawings
FIG. 1 is a schematic view of a prior art insulating cover plate;
FIG. 2 is a cross-sectional view of the right side view of FIG. 1;
FIG. 3 is a schematic view of an insulating cover plate according to the present invention;
FIG. 4 is a cross-sectional view of the left side view of FIG. 3;
fig. 5 is a schematic diagram of the structure of the insulating cover plate applied to the gas-insulated switchgear.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
In the embodiment of the insulating cover of the present invention, as shown in fig. 3 to 5, the insulating cover 101 includes a plate body 5 and a fixing hole 12 provided on the plate body 5, the fixing hole 12 being used to fix the insulating cover 101 to a gas-insulated switchgear. The plate body 5 has an inner side 11 for facing the inside of the gas-insulated switchgear, the inner side 11 is provided with a circumferential seal groove 6, the circumferential seal groove 6 forms a circumferential seal structure to ensure the sealing performance of the insulating cover plate and the cylinder of the gas-insulated switchgear, in other embodiments, the cylinder is provided with a circumferential seal groove, the inner side is provided with a seal part in sealing fit with a seal ring in the circumferential seal groove, and the seal part forms a circumferential seal structure. The inner side surface 11 is convexly provided with a cone 7 positioned in the circumferential sealing groove 6, and the conical surface 8 of the cone 7 forms a diversion surface for diversion of high-temperature air flow generated in the process of switching-on and switching-off of the gas-insulated switchgear. Compared with the prior art, the cone of the protruding plate body is arranged on the side surface of the insulating cover plate, which faces to the inner side of the gas-insulated switchgear, so that high-temperature air flow generated in the switching-on and switching-off process of the gas-insulated switchgear is conducted through the conduction surface, the impact and ablation of the high-temperature air flow on the insulating cover plate are reduced, the service life of the insulating cover plate is prolonged, and the cost is reduced.
In order to facilitate the drainage of the high-temperature hot air flow, in this embodiment, the cone 7 is conical to ensure that the high-temperature hot air flow is smoothly drained, thereby reducing the impact and ablation of the high-temperature hot air flow on the insulating cover plate. In other embodiments, the cone 7 is a pyramid or frustum. Since the high-temperature hot air flow is concentrated in the middle position of the insulating cover plate, in order to drain most of the high-temperature hot air flow, in this embodiment, the cone 7 is disposed in the middle position of the plate body 5, so as to reduce impact and ablation on the insulating cover plate.
In order to avoid that the connection position of the plate body and the cylinder is impacted by high-temperature hot air flow to damage the sealing performance between the plate body and the cylinder, in the embodiment, the plate body 5 is further convexly provided with an annular protrusion 9 which is arranged around the cone 7 on the inner side surface 11 where the cone 7 is located, and the annular protrusion 9 is arranged in the circumferential sealing groove 6. The annular bulge can stop the high-temperature hot air flow which is conducted from the conduction surface, and the connection position of the plate body and the cylinder body is prevented from being impacted by the high-temperature hot air flow so as to damage the sealing performance between the plate body and the cylinder body, thereby preventing the insulating gas in the cylinder body from leaking out. In addition, after the high-temperature air flow guided out of the drainage surface hits the annular bulge, the high-temperature air flow can flow in the opposite direction to the original direction, so that the high-temperature air flow can interfere with the high-temperature air flow in the original direction, and turbulence is generated. In other embodiments, the annular protrusion may be provided on the drainage surface, or not. In this embodiment, two annular protrusions 9 are provided along the radial direction of the cone 7, and the two annular protrusions 9 and the plate body 5 enclose an annular groove 10 that makes the high-temperature gas flowing out from the drainage surface in a turbulent state. The hot air flowing back from the annular groove and the hot air flowing out from the drainage surface are mutually impacted at the end face of the annular bulge, which is far away from one end of the plate body, so that turbulent flow is generated, the diffusion of the high-temperature hot air is slowed down, the energy of the high-temperature hot air can be reduced, and the flashover on the inner surface of the cylinder body is avoided. In other embodiments, only one annular protrusion may be provided.
In this embodiment, the insulating cover plate 101 is made of epoxy resin, and under the condition that the insulating cover plate is made of epoxy resin, the insulating cover plate 101 in this embodiment is convexly provided with the cone 7 and the annular protrusion 9, so that the strength of the insulating cover plate is improved, the service life is prolonged, and the cost is reduced.
In the embodiment of the gas-insulated switchgear of the present invention, the gas-insulated switchgear includes a cylinder and an insulating cover plate disposed on the cylinder, and the insulating cover plate has the same structure as the insulating cover plate described in the embodiment of the insulating cover plate, which is not described in detail.
Claims (8)
1. The insulating apron, including the plate body, the plate body has the medial surface that is used for towards gas insulated switchgear is inside, be equipped with circumference seal structure, its characterized in that on the medial surface: the inner side face is provided with a cone located in the circumferential sealing structure in an protruding mode, the conical surface of the cone forms a drainage surface for drainage of high-temperature hot air flow generated in the gas insulation switch equipment breaking process, the inner side face is also provided with annular protrusions arranged around the cone in a protruding mode, and the annular protrusions are arranged in the circumferential sealing structure.
2. The insulating cover according to claim 1, wherein: at least two annular protrusions are arranged along the radial direction of the cone, and annular grooves are formed by surrounding the adjacent two annular protrusions and the plate body.
3. An insulating cover according to claim 1 or 2, characterized in that: the cone is conical.
4. An insulating cover according to claim 1 or 2, characterized in that: the cone is arranged in the middle of the insulating cover plate.
5. Gas-insulated switchgear, including barrel and the insulating apron of setting on the barrel, its characterized in that: the insulating cover plate comprises a plate body, the plate body is provided with an inner side surface which faces the inside of the gas-insulated switchgear, a circumferential sealing structure is arranged on the inner side surface, a cone which is located in the circumferential sealing structure is arranged on the inner side surface in a protruding mode, the conical surface of the cone forms a drainage surface for drainage of high-temperature hot air flow generated in the opening and closing process of the gas-insulated switchgear, annular protrusions which are arranged around the cone are arranged on the inner side surface in a protruding mode, and the annular protrusions are arranged in the circumferential sealing structure.
6. The gas insulated switchgear as claimed in claim 5, wherein: at least two annular protrusions are arranged along the radial direction of the cone, and annular grooves are formed by surrounding the adjacent two annular protrusions and the plate body.
7. A gas-insulated switchgear as claimed in claim 5 or 6, wherein: the cone is conical.
8. A gas-insulated switchgear as claimed in claim 5 or 6, wherein: the cone is arranged in the middle of the insulating cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557092.1A CN108631208B (en) | 2018-06-01 | 2018-06-01 | Gas-insulated switchgear and insulating cover plate therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557092.1A CN108631208B (en) | 2018-06-01 | 2018-06-01 | Gas-insulated switchgear and insulating cover plate therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108631208A CN108631208A (en) | 2018-10-09 |
| CN108631208B true CN108631208B (en) | 2023-11-21 |
Family
ID=63691102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810557092.1A Active CN108631208B (en) | 2018-06-01 | 2018-06-01 | Gas-insulated switchgear and insulating cover plate therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108631208B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10164711A (en) * | 1996-11-25 | 1998-06-19 | Nissin Electric Co Ltd | Plate body fitting device of gas insulated switch gear |
| JP3012632B1 (en) * | 1999-01-14 | 2000-02-28 | 日本電気移動通信株式会社 | Outdoor housing |
| JP2003134620A (en) * | 2001-10-23 | 2003-05-09 | Mitsubishi Electric Corp | Bursting apparatus for gas insulated switchgear |
| KR20060053448A (en) * | 2004-11-16 | 2006-05-22 | 이진호 | Magnetic patch of switch board front surface panel |
| CN201789227U (en) * | 2010-07-06 | 2011-04-06 | 沈阳华利能源设备制造有限公司 | Closing plate sealing structure used on gaseous insulation metal enclosed switchgear |
| CN202340089U (en) * | 2011-12-16 | 2012-07-18 | 川开电气股份有限公司 | Low voltage container sealing plate |
| CN202353082U (en) * | 2011-11-01 | 2012-07-25 | 中国西电电气股份有限公司 | Cover plate structure of air insulation closing switch apparatus |
| CN203279436U (en) * | 2013-04-25 | 2013-11-06 | 深圳市英威腾电气股份有限公司 | Heat radiation and air deflecting device |
| CN204104277U (en) * | 2014-07-30 | 2015-01-14 | 沪华五金电子(吴江)有限公司 | A kind of outdoor cabinet |
| CN205489064U (en) * | 2016-01-13 | 2016-08-17 | 瑞鑫集团（福州）实业有限公司 | Fire prevention formula high voltage distribution cabinet |
| CN106051238A (en) * | 2016-07-05 | 2016-10-26 | 嵊州市涡旋冷冻机有限公司 | Noise reduction check valve applied to scroll compressor |
| CN106465587A (en) * | 2016-08-29 | 2017-03-01 | 山东胜伟园林科技有限公司 | A kind of hidden pipe jointing for alkaline land soil improvement |
| CN206260178U (en) * | 2016-12-26 | 2017-06-16 | 上海喆氏智能科技有限公司 | A kind of bucker of wheelchair protection circuit |
| CN206439862U (en) * | 2017-01-09 | 2017-08-25 | 佛山市嘉仕利厨卫电器科技有限公司 | A kind of automaton of touch screen type gas-cooker |
| CN206758935U (en) * | 2017-03-21 | 2017-12-15 | 江苏华冠电器集团有限公司 | The arc-proof structure of switchgear assembly |
| CN207053875U (en) * | 2017-08-17 | 2018-02-27 | 丰顺县和生电子有限公司 | A kind of multiple layers of high strength printed circuit board (PCB) |
| CN208352852U (en) * | 2018-06-01 | 2019-01-08 | 河南森源电气股份有限公司 | A kind of gas-insulated switchgear and its insulation cover plate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014114900B3 (en) * | 2014-10-14 | 2016-02-18 | Sma Solar Technology Ag | Cooling air system and spray water protection arrangement for a cooling air system of a housing and electrical or electronic device with a housing |
-
2018
- 2018-06-01 CN CN201810557092.1A patent/CN108631208B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10164711A (en) * | 1996-11-25 | 1998-06-19 | Nissin Electric Co Ltd | Plate body fitting device of gas insulated switch gear |
| JP3012632B1 (en) * | 1999-01-14 | 2000-02-28 | 日本電気移動通信株式会社 | Outdoor housing |
| JP2003134620A (en) * | 2001-10-23 | 2003-05-09 | Mitsubishi Electric Corp | Bursting apparatus for gas insulated switchgear |
| KR20060053448A (en) * | 2004-11-16 | 2006-05-22 | 이진호 | Magnetic patch of switch board front surface panel |
| CN201789227U (en) * | 2010-07-06 | 2011-04-06 | 沈阳华利能源设备制造有限公司 | Closing plate sealing structure used on gaseous insulation metal enclosed switchgear |
| CN202353082U (en) * | 2011-11-01 | 2012-07-25 | 中国西电电气股份有限公司 | Cover plate structure of air insulation closing switch apparatus |
| CN202340089U (en) * | 2011-12-16 | 2012-07-18 | 川开电气股份有限公司 | Low voltage container sealing plate |
| CN203279436U (en) * | 2013-04-25 | 2013-11-06 | 深圳市英威腾电气股份有限公司 | Heat radiation and air deflecting device |
| CN204104277U (en) * | 2014-07-30 | 2015-01-14 | 沪华五金电子(吴江)有限公司 | A kind of outdoor cabinet |
| CN205489064U (en) * | 2016-01-13 | 2016-08-17 | 瑞鑫集团（福州）实业有限公司 | Fire prevention formula high voltage distribution cabinet |
| CN106051238A (en) * | 2016-07-05 | 2016-10-26 | 嵊州市涡旋冷冻机有限公司 | Noise reduction check valve applied to scroll compressor |
| CN106465587A (en) * | 2016-08-29 | 2017-03-01 | 山东胜伟园林科技有限公司 | A kind of hidden pipe jointing for alkaline land soil improvement |
| CN206260178U (en) * | 2016-12-26 | 2017-06-16 | 上海喆氏智能科技有限公司 | A kind of bucker of wheelchair protection circuit |
| CN206439862U (en) * | 2017-01-09 | 2017-08-25 | 佛山市嘉仕利厨卫电器科技有限公司 | A kind of automaton of touch screen type gas-cooker |
| CN206758935U (en) * | 2017-03-21 | 2017-12-15 | 江苏华冠电器集团有限公司 | The arc-proof structure of switchgear assembly |
| CN207053875U (en) * | 2017-08-17 | 2018-02-27 | 丰顺县和生电子有限公司 | A kind of multiple layers of high strength printed circuit board (PCB) |
| CN208352852U (en) * | 2018-06-01 | 2019-01-08 | 河南森源电气股份有限公司 | A kind of gas-insulated switchgear and its insulation cover plate |
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| Publication number | Publication date |
|---|---|
| CN108631208A (en) | 2018-10-09 |
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