CN112563001A - Shielding device for dry-type reactor peripheral electromagnetic environment - Google Patents
Shielding device for dry-type reactor peripheral electromagnetic environment Download PDFInfo
- Publication number
- CN112563001A CN112563001A CN202011373158.5A CN202011373158A CN112563001A CN 112563001 A CN112563001 A CN 112563001A CN 202011373158 A CN202011373158 A CN 202011373158A CN 112563001 A CN112563001 A CN 112563001A
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- Prior art keywords
- arc
- shaped aluminum
- fixing
- aluminum plate
- opening
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- 230000002093 peripheral effect Effects 0.000 title claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 75
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 75
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to the technical field of power equipment, in particular to a shielding device for a peripheral electromagnetic environment of a dry-type reactor, which comprises a shielding ring, an insulating support and a grounding piece, wherein the shielding ring comprises at least three arc-shaped aluminum plates which are sequentially detachably and fixedly installed together along the circumferential direction, each arc-shaped aluminum plate is in a fan-shaped ring shape, the arc-shaped aluminum plate positioned at the forefront is a main arc-shaped aluminum plate, the middle part of the left side of the main arc-shaped aluminum plate is provided with a first opening which is communicated up and down, the middle part of the right side of the main arc-shaped aluminum plate corresponding to the position of the first opening is provided with a second opening which is. The invention has reasonable and compact structure and ingenious conception, and avoids abnormal heating caused by current conversion generated by a closed loop by arranging the shielding ring; the arc-shaped aluminum plates which are split and detachably and fixedly arranged together are convenient to construct and install; has the characteristics of high efficiency, stability and easy disassembly and assembly.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a shielding device for an electromagnetic environment around a dry-type reactor.
Background
At present, an open-type structure is adopted in an existing dry-type air-core reactor, so that an open-type strong magnetic field exists around the existing dry-type air-core reactor, and due to the reasons of design, installation process and the like, a closed loop (such as a reactor fence, an annular ground wire, a support piece, a base grounding flat iron and other spatial structures) in a certain area range generates current conversion to cause abnormal heating, so that the normal operation of equipment is influenced, and hidden dangers are caused to personal and equipment safety.
Disclosure of Invention
The invention provides a shielding device for an electromagnetic environment around a dry-type reactor, which overcomes the defects of the prior art and can effectively solve the problem of abnormal heating of the conventional reactor caused by current conversion generated by a closed loop.
The technical scheme of the invention is realized by the following measures: a shielding device for the peripheral electromagnetic environment of a dry-type reactor comprises a shielding ring, an insulating support and a grounding piece, wherein the shielding ring comprises at least three arc-shaped aluminum plates which are sequentially detachably and fixedly mounted together along the circumferential direction, each arc-shaped aluminum plate is in a fan-ring shape, the arc-shaped aluminum plate positioned at the forefront is a main arc-shaped aluminum plate, the middle part of the left side of the main arc-shaped aluminum plate is provided with a first opening which is communicated from top to bottom, the middle part of the right side of the main arc-shaped aluminum plate corresponding to the position of the first opening is provided with a second opening which is communicated from top to bottom, all the arc-shaped aluminum plates are identical in structure with the main arc-shaped aluminum plate, and each first opening; the equal fixed mounting of every arc aluminum plate downside has insulating pillar, and the arc aluminum plate downside is equipped with the grounding piece.
The following is further optimization or/and improvement of the technical scheme of the invention:
above-mentioned insulating support can include fixed column and fixing base, and the equal fixed mounting of every arc aluminum plate downside has the fixed column, and fixed column lower extreme fixed mounting has the fixing base, corresponds first fixed orifices and the second fixed orifices that link up from top to bottom on the fixing base of fixed column both sides position.
The fixing device can further comprise foundation bolts, and foundation bolts are arranged in the first fixing holes and the second fixing holes.
Above-mentioned insulating pillar still can be including fixed screwed pipe and fixing bolt, and every arc aluminum plate middle part all is equipped with at least one third fixed orifices, and the arc aluminum plate downside that corresponds every first fixed orifices position all is equipped with the fixed column, and the fixed column upper end is equipped with fixed blind hole, and fixed blind hole internal fixation has fixed screwed pipe, is equipped with the fixing bolt of lower extreme fixed mounting in fixed screwed pipe in the first fixed orifices.
The middle part of each arc-shaped aluminum plate can be provided with two third fixing holes at intervals.
The aluminum plate fixing device further comprises an inner connecting plate, an outer connecting plate, a first bolt and a second bolt, every two adjacent arc-shaped aluminum plates corresponding to the inner side position of the first opening are fixedly installed together through the inner connecting plate and the first bolt in a detachable mode, and every two adjacent arc-shaped aluminum plates corresponding to the outer side position of the first opening are fixedly installed together through the outer connecting plate and the second bolt in a detachable mode.
The invention has reasonable and compact structure and ingenious conception, and avoids abnormal heating caused by current conversion generated by a closed loop by arranging the shielding ring; the arc-shaped aluminum plates which are split and detachably and fixedly arranged together are convenient to construct and install; by arranging the first opening and the second opening, two arc-shaped aluminum plates which are spliced in pair can be conveniently arranged on the outer sides of the supporting legs of the dry-type reactor; through setting up insulating stand, the arc aluminum plate of being convenient for installs on the concrete pillar, has the characteristics of high efficiency, stability and easy dismouting.
Drawings
Fig. 1 is a schematic top view of the preferred embodiment of the present invention.
Fig. 2 is a schematic front view of the preferred embodiment of the present invention in use.
The codes in the figures are respectively: 1 is arc aluminum plate, 2 is the grounding lug, 3 is first opening, 4 is the second opening, 5 is the fixed column, 6 is the fixing base, 7 is fixing bolt, 8 is the interior connecting plate, 9 is the outer joint plate, 10 is first bolt, 11 is the second bolt, 12 is the mounting hole, 13 is the dry-type reactor, 14 is the landing leg, 15 is the concrete support, 16 is rag bolt.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of the components is described according to the layout pattern of fig. 1 of the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention is further described with reference to the following examples and figures:
as shown in the attached drawings 1 and 2, the shielding device for the electromagnetic environment around the dry-type reactor comprises a shielding ring, an insulating support and a grounding piece 2, wherein the shielding ring comprises at least three arc-shaped aluminum plates 1 which are sequentially detachably and fixedly mounted together along the circumferential direction, each arc-shaped aluminum plate 1 is in a fan-ring shape, the arc-shaped aluminum plate 1 positioned at the forefront is a main arc-shaped aluminum plate 1, a first opening 3 which is communicated up and down is arranged in the middle of the left side of the main arc-shaped aluminum plate 1, a second opening 4 which is communicated up and down is arranged in the middle of the right side of the main arc-shaped aluminum plate 1 corresponding to the position of the first opening 3, all the arc-shaped aluminum plates 1 are in the same structure as the main arc-shaped aluminum plate 1, and each first opening 3 and the; every 1 downside of arc aluminum plate fixed mounting has insulating pillar, and 1 downside of arc aluminum plate is equipped with grounding piece 2. In the using process, a dry-type reactor 13 is installed on a concrete support column 15, a plurality of supporting legs 14 for manufacturing are arranged on the lower side of the dry-type reactor 13, the number of the arc-shaped aluminum plates 1 is the same as that of the supporting legs 14, for example, eight arc-shaped aluminum plates 1 are installed on the outer side of each supporting leg 14 through an installation hole 12 in pairs, every two adjacent arc-shaped aluminum plates 1 are detachably and fixedly installed together, and finally, an insulating support column and the concrete support column 15 are fixedly installed together, so that the installation of the invention is completed; the invention has reasonable and compact structure and ingenious conception, and avoids abnormal heating caused by current conversion generated by a closed loop by arranging the shielding ring; the arc aluminum plate 1 which is split and detachably and fixedly arranged together is convenient to construct and install; by arranging the first opening 3 and the second opening 4, two arc-shaped aluminum plates 1 which are spliced in pair can be conveniently arranged outside the supporting legs 14 of the dry-type reactor 13; through setting up insulating stand, be convenient for arc aluminum plate 1 to install on concrete support 15, have high-efficient, stable and easy characteristics of dismouting, under the not influenced prerequisite of guaranteeing dry-type reactor 13 operation, influence such as electric inductance value, reactive power, the current distribution in the encapsulation coil is very little promptly, all within the safety margin scope, solve the peripheral metal parts abnormal heating problem that appears in the dry-type reactor 13 operation process. According to requirements, the shielding effect of the shielding ring under the condition that different shielding materials such as an aluminum plate, a copper plate, a round copper ring, a silicon steel sheet and the like are adopted is contrastively analyzed, and the fact that the aluminum plate is adopted as the shielding ring material is determined to be economical and good in shielding effect; the shielding effect of the shielding ring under the condition of different thicknesses is contrastively analyzed, and the shielding ring with the thickness of 10mm to 14mm can meet the application requirement under the condition of ensuring that the shielding ring does not generate heat; and comparing and analyzing the shielding effect of the shielding ring under the conditions of different outer diameters, and determining that the shielding ring can meet the application requirement by adopting a circular ring structure with the outer diameter of 3200mm to 3600mm and the inner diameter of 1200mm to 1600 mm.
According to the actual needs, the shielding device for the electromagnetic environment around the dry-type reactor can be further optimized or/and improved:
as shown in fig. 1 and 2, the insulating support column comprises a fixing column 5 and a fixing base 6, wherein a fixing column 5 is fixedly mounted on the lower side of each arc-shaped aluminum plate 1, the fixing base 6 is fixedly mounted at the lower end of each fixing column 5, and a first fixing hole and a second fixing hole which are vertically communicated are formed in the fixing base 6 corresponding to the positions of the two sides of each fixing column 5. By this arrangement, the present invention is readily secured to the concrete post 15 during use. The fixing posts 5 and the fixing base 6 may be made of a known insulating material, such as a hot-melt plastic resin material.
As shown in fig. 1 and 2, the fixing device further includes an anchor bolt 16, and the anchor bolt 16 is disposed in each of the first fixing hole and the second fixing hole. By this arrangement, it is facilitated to fixedly mount the insulating support on the concrete support 15 during use.
As shown in fig. 1 and 2, the insulating support column further comprises a fixing solenoid and a fixing bolt 7, wherein at least one third fixing hole is formed in the middle of each arc-shaped aluminum plate 1, a fixing column 5 is arranged on the lower side of each arc-shaped aluminum plate 1 corresponding to each first fixing hole, a fixing blind hole is formed in the upper end of each fixing column 5, the fixing solenoid is fixedly installed in each fixing blind hole, and the fixing bolt 7 fixedly installed in the fixing solenoid is arranged at the lower end of each fixing hole. In the use process, the insulating support column and the arc aluminum plate 1 are fixedly arranged together conveniently through the arrangement.
As shown in fig. 1 and 2, two third fixing holes are formed in the middle of each arc-shaped aluminum plate 1 at intervals. In the use process, the installation is more stable and reliable after the installation.
As shown in the attached drawings 1 and 2, the aluminum plate fixing device further comprises an inner connecting plate 8, an outer connecting plate 9, a first bolt 10 and a second bolt 11, every two adjacent arc-shaped aluminum plates 1 corresponding to the inner side position of the first opening 3 are detachably and fixedly mounted together through the inner connecting plate 8 and the first bolt 10, and every two adjacent arc-shaped aluminum plates 1 corresponding to the outer side position of the first opening 3 are detachably and fixedly mounted together through the outer connecting plate 9 and the second bolt 11. In the use process, through the arrangement, the two arc-shaped aluminum plates 1 can be conveniently and fixedly arranged together in a detachable mode. According to the requirement, the inner connecting plate 8 can be fixedly installed together with two adjacent arc-shaped aluminum plates 1 through six first bolts 10, the outer connecting plate 9 can be fixedly installed together with two adjacent arc-shaped aluminum plates 1 through eight second bolts 11, and the first bolts 10 and the second bolts 11 can be matched with known components such as spring washers, nuts and plain washers during installation, and the installation method is not repeated.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (7)
1. A shielding device for the peripheral electromagnetic environment of a dry-type reactor is characterized by comprising a shielding ring, an insulating support and a grounding piece, wherein the shielding ring comprises at least three arc-shaped aluminum plates which are sequentially detachably and fixedly mounted together along the circumferential direction, each arc-shaped aluminum plate is in a fan-shaped ring shape, the arc-shaped aluminum plate positioned at the forefront is a main arc-shaped aluminum plate, the middle part of the left side of the main arc-shaped aluminum plate is provided with a first opening which is communicated up and down, the middle part of the right side of the main arc-shaped aluminum plate corresponding to the position of the first opening is provided with a second opening which is communicated up and down, all the arc-shaped aluminum plates are identical in structure with the main arc-shaped aluminum plate, and each first opening and; the equal fixed mounting of every arc aluminum plate downside has insulating pillar, and the arc aluminum plate downside is equipped with the grounding piece.
2. The shielding device for the electromagnetic environment around the dry-type reactor according to claim 1, wherein the insulating support comprises a fixing column and a fixing seat, the fixing column is fixedly installed on the lower side of each arc-shaped aluminum plate, the fixing seat is fixedly installed at the lower end of the fixing column, and a first fixing hole and a second fixing hole which are vertically communicated are formed in the fixing seats corresponding to the positions on the two sides of the fixing column.
3. The shielding device for the electromagnetic environment around the dry-type reactor according to claim 2, further comprising anchor bolts, wherein the anchor bolts are arranged in the first fixing hole and the second fixing hole.
4. The shielding device for the electromagnetic environment around the dry-type reactor according to claim 2 or 3, wherein the insulating support column further comprises a fixing screw tube and a fixing bolt, at least one third fixing hole is formed in the middle of each arc-shaped aluminum plate, a fixing column is arranged on the lower side of each arc-shaped aluminum plate corresponding to the position of each first fixing hole, a fixing blind hole is formed in the upper end of each fixing column, the fixing screw tube is fixedly installed in each fixing blind hole, and the fixing bolt with the lower end fixedly installed in the fixing screw tube is arranged in each first fixing hole.
5. The shielding device for the electromagnetic environment around the dry-type reactor according to claim 4, wherein two third fixing holes are arranged at intervals in the middle of each arc-shaped aluminum plate.
6. A shielding device for the electromagnetic environment around the dry-type reactor according to claim 1, 2, 3 or 5, further comprising an inner connecting plate, an outer connecting plate, a first bolt and a second bolt, wherein every two adjacent arc-shaped aluminum plates corresponding to the positions inside the first opening are detachably and fixedly mounted together through the inner connecting plate and the first bolt, and every two adjacent arc-shaped aluminum plates corresponding to the positions outside the first opening are detachably and fixedly mounted together through the outer connecting plate and the second bolt.
7. The shielding device for the electromagnetic environment around the dry-type reactor according to claim 4, further comprising an inner connecting plate, an outer connecting plate, a first bolt and a second bolt, wherein every two adjacent arc-shaped aluminum plates corresponding to the inner side position of the first opening are detachably and fixedly mounted together through the inner connecting plate and the first bolt, and every two adjacent arc-shaped aluminum plates corresponding to the outer side position of the first opening are detachably and fixedly mounted together through the outer connecting plate and the second bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011373158.5A CN112563001A (en) | 2020-11-30 | 2020-11-30 | Shielding device for dry-type reactor peripheral electromagnetic environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011373158.5A CN112563001A (en) | 2020-11-30 | 2020-11-30 | Shielding device for dry-type reactor peripheral electromagnetic environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112563001A true CN112563001A (en) | 2021-03-26 |
Family
ID=75045413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011373158.5A Pending CN112563001A (en) | 2020-11-30 | 2020-11-30 | Shielding device for dry-type reactor peripheral electromagnetic environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112563001A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117410083A (en) * | 2023-12-14 | 2024-01-16 | 长春市元尚欣信息科技有限公司 | High-energy-efficiency power transformer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2833825Y (en) * | 2005-09-30 | 2006-11-01 | 四川省崇州市恒达电子厂 | Annular upper cover plate for fixing transformer |
| CN101192468A (en) * | 2006-12-02 | 2008-06-04 | 文浩 | Active field all-magnetism shielding squirrel-cage shaped dry hollow reactor |
| CN201601013U (en) * | 2009-11-26 | 2010-10-06 | 平高集团有限公司 | Voltage transformer and shielding case thereof |
| JP2014130950A (en) * | 2012-12-28 | 2014-07-10 | Nidec Sankyo Corp | Inductor mounting substrate |
| CN205645496U (en) * | 2015-12-04 | 2016-10-12 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Dry -type air -core reactor lower extreme magnetism shielding structure |
| CN208954745U (en) * | 2018-11-07 | 2019-06-07 | 北京电力设备总厂有限公司 | Lower support structure for dry-type air-core reactor denoising device |
| CN209015865U (en) * | 2018-12-17 | 2019-06-21 | 西安神电高压电器有限公司 | A kind of dry sleeve |
| CN111599583A (en) * | 2020-04-21 | 2020-08-28 | 国网安徽省电力有限公司宣城供电公司 | Interphase short circuit protection device for outdoor stacked series reactor |
-
2020
- 2020-11-30 CN CN202011373158.5A patent/CN112563001A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2833825Y (en) * | 2005-09-30 | 2006-11-01 | 四川省崇州市恒达电子厂 | Annular upper cover plate for fixing transformer |
| CN101192468A (en) * | 2006-12-02 | 2008-06-04 | 文浩 | Active field all-magnetism shielding squirrel-cage shaped dry hollow reactor |
| CN201601013U (en) * | 2009-11-26 | 2010-10-06 | 平高集团有限公司 | Voltage transformer and shielding case thereof |
| JP2014130950A (en) * | 2012-12-28 | 2014-07-10 | Nidec Sankyo Corp | Inductor mounting substrate |
| CN205645496U (en) * | 2015-12-04 | 2016-10-12 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Dry -type air -core reactor lower extreme magnetism shielding structure |
| CN208954745U (en) * | 2018-11-07 | 2019-06-07 | 北京电力设备总厂有限公司 | Lower support structure for dry-type air-core reactor denoising device |
| CN209015865U (en) * | 2018-12-17 | 2019-06-21 | 西安神电高压电器有限公司 | A kind of dry sleeve |
| CN111599583A (en) * | 2020-04-21 | 2020-08-28 | 国网安徽省电力有限公司宣城供电公司 | Interphase short circuit protection device for outdoor stacked series reactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117410083A (en) * | 2023-12-14 | 2024-01-16 | 长春市元尚欣信息科技有限公司 | High-energy-efficiency power transformer |
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