CN110993291A - Top structure suitable for Box-in device of converter transformer - Google Patents
Top structure suitable for Box-in device of converter transformer Download PDFInfo
- Publication number
- CN110993291A CN110993291A CN201911308588.6A CN201911308588A CN110993291A CN 110993291 A CN110993291 A CN 110993291A CN 201911308588 A CN201911308588 A CN 201911308588A CN 110993291 A CN110993291 A CN 110993291A
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- sound insulation
- converter transformer
- melt material
- hot
- supporting steel
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- 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
- H01F27/33—Arrangements for noise damping
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- 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
-
- 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
- H01F27/02—Casings
- H01F27/022—Encapsulation
Abstract
The invention relates to the technical field of sound insulation and noise reduction and fire safety of power transmission and transformation equipment in the power industry, in particular to a top structure suitable for a Box-in device of a converter transformer, which comprises fixed sound insulation plates arranged on two sides of a converter transformer area, detachable sound insulation plates arranged in the connection area of the rear part of the converter transformer and a valve hall, and a high-temperature detachable component arranged in a fire key attention area, wherein the high-temperature detachable component comprises a supporting steel structure, PA6 hot-melt material plates fixed on the supporting steel structure, filling sound insulation plates filled between two adjacent PA6 hot-melt material plates, and explosion venting sound insulation plates arranged between two adjacent PA6 hot-melt material plates. By adopting the structure, the requirements of sound insulation and noise reduction during the daily operation of the converter transformer can be met, the operation, maintenance and overhaul can be conveniently carried out, the automatic falling and pressure relief during the fire disaster of the converter transformer can be also adapted, the design is simple, and the method can be widely applied to noise control and fire-fighting modification of the converter transformer.
Description
Technical Field
The invention relates to the technical field of sound insulation and noise reduction and fire safety of power transmission and transformation equipment in the power industry, in particular to a top structure suitable for a Box-in device of a converter transformer.
Background
The Box-in technology is widely applied to noise reduction engineering of the current converter transformer due to obvious noise reduction effect, however, the Box-in technology is used as a closed device, if the converter transformer is in a fire due to a fault, the internal pressure of the Box-in is increased instantaneously, explosion can be caused, irreversible damage can be caused to equipment around the converter transformer, and huge economic loss can be generated. Therefore, on the premise of not influencing the normal operation of the converter transformer, necessary equipment protection measures are needed to be taken, the top structure of the converter transformer Box-in is improved, and the economic loss caused by emergency is reduced to the greatest extent.
In the article, "the sound absorption and noise reduction optimization design discussion of the wall surface of a main transformer room of an indoor transformer substation in an urban area" mentions that the most effective mode in the whole noise reduction of the transformer substation is to effectively suppress the sound source noise of the transformer substation, and the noise of the factory boundary is reduced by arranging sound absorption and sound insulation materials around a main transformer in the urban area. Patent publication No. CN207801238U provides a sound insulation noise reduction box suitable for outdoor transformer substation high-voltage reactor, is the cuboid structure of pentahedron except that the bottom, and wherein the top adopts the detachable abatvoix and is equipped with air-out noise elimination shutter. The scheme relates to the technical field of noise reduction treatment of transformer substation internal equipment by adopting a sealing device, but the problem that the fire safety field may appear is not considered, and an effective improvement measure for the top structure of a Box-in noise reduction device is lacked, so that the device can meet the requirements of sound insulation and noise reduction and the requirement of fire safety.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an improved design scheme suitable for the top structure of the Box-in device of the converter transformer, and meanwhile, fire-fighting measures and convenience in operation, maintenance and overhaul of the converter transformer are also considered.
In order to achieve the purpose, the technical scheme applied by the invention is as follows:
the top structure comprises fixed sound insulation plates arranged on two sides of a converter transformer area, detachable sound insulation plates arranged in the area where the rear portion of the converter transformer is connected with a valve hall, and high-temperature falling assemblies arranged in a fire-fighting key attention area, wherein each high-temperature falling assembly comprises a supporting steel structure, PA6 hot-melt material plates fixed on the supporting steel structure, filling sound insulation plates filled between two adjacent PA6 hot-melt material plates, and explosion-venting sound insulation plates arranged between two adjacent PA6 hot-melt material plates.
Further, the area of the PA6 hot melt material plate is larger than the supporting area of the supporting steel structure, and the PA6 hot melt material plate is fixed on the supporting steel structure through bolts.
Furthermore, the left side and the right side of the explosion venting sound insulation plate are respectively fixed through six PA6 hot melt material plates with the thickness of 20 mm.
Further, the melting point of the PA6 hot-melt material plate was 210 ℃.
Further, the filling sound insulation plate and the explosion venting sound insulation plate are sealed through a sealant.
The invention has the beneficial effects that:
the structure arrangement adopted by the invention can meet the requirements of sound insulation and noise reduction during the daily operation of the converter transformer, can be conveniently operated, maintained and overhauled, can adapt to the automatic falling and pressure relief during the fire disaster of the converter transformer, has simple design and can be widely applied to the noise control and fire-fighting transformation of the converter station.
Drawings
FIG. 1 is a schematic diagram of a top structure modification scheme of the converter transformer Box-in;
FIG. 2 is a schematic view of the top melt plate arrangement of Box-in;
FIG. 3 is a detailed schematic view of the top support steel structure of Box-in.
1. A fixed sound insulation board; 2. the sound insulation board can be disassembled; 3. a high temperature sloughable area; 4. supporting the steel structure; PA6 hot-melt material plate; 6. filling the sound insulation board; 7. explosion venting and sound insulation board; 8. sealing glue; 9. and (4) bolts.
Detailed Description
The technical solution of the present invention is described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, the top structure of Box-in device for converter transformer according to the present invention comprises fixed sound insulation boards 1 disposed on two sides of the converter transformer area, detachable sound insulation boards 2 disposed on the rear portion of the converter transformer area connected to the valve hall, and high temperature dropping components 3 disposed in the fire-fighting key area of interest, wherein the high temperature dropping components 3 comprise a supporting steel structure 4, PA6 hot-melt material boards 5 fixed on the supporting steel structure 4, a filling sound insulation board 6 filled between two adjacent PA6 hot-melt material boards 5, and a explosion venting sound insulation board 7 disposed between two adjacent PA6 hot-melt material boards 5. By adopting the structure, the device mainly carries out fire-fighting differentiation design on the original closed structure at the top of the converter transformer Box-in: through the fixed sound insulation plates 1 arranged on two sides of the converter transformer area and the detachable sound insulation plates 2 arranged in the connection area of the rear part of the converter transformer and the valve hall, because the two parts have no high-temperature falling and explosion venting functions, the parts are not important areas of fire, and the operation and maintenance maintainers need to have reliable standing areas to carry out corresponding maintenance work on the converter transformer and the Box-in device has good sound insulation and noise reduction effects when the converter transformer normally operates; the high-temperature falling assembly 3 arranged in the fire-fighting key attention area can utilize the PA6 hot-melt material plate 5 and the corresponding supporting steel structure 4 to reform the Box-in top into a structure which can automatically fall off when a fire disaster occurs, and is favorable for releasing the internal pressure when the fire disaster occurs. In practical application, the filling sound insulation plate 6 and the explosion venting sound insulation plate 7 are both supported by the PA6 hot-melt material plate 5 and the supporting steel structure 4.
More specifically, the area of the PA6 hot melt material plate 5 is larger than the supporting area of the supporting steel structure 4, and the PA6 hot melt material plate 5 is fixed on the supporting steel structure 4 through bolts 9.
More specifically, the left and right sides of the explosion venting sound insulation plate 7 are respectively fixed by six PA6 hot melt material plates 5 with the thickness of 20 mm. In practical application, the bearing capacity of a single PA6 hot-melt material plate 5 is about 54kg, and the total bearing capacity of six PA6 hot-melt material plates 5 with the thickness of 20mm is about 324kg, so that the supporting performance of the PA6 hot-melt material plates 5 is ensured, the six PA6 hot-melt material plates 5 with the thickness of 20mm can bear 1-2 overhaulers additionally while bearing one explosion venting sound insulation plate 7 stably, and the overhaulers can conveniently and smoothly work.
More specifically, the melting point of the PA6 hot-melt material plate 5 is 210 ℃.
In practice, the plate 5 of PA6 hot-melt material has a flame-retardant effect and melts only when the temperature reaches 210 ℃.
More specifically, the filling sound insulation plate 6 and the explosion venting sound insulation plate 7 are sealed by a sealant 8.
In practical application, the filling sound insulation plate 6 and the explosion venting sound insulation plate 7 are sealed through the sealant 8, and the sound insulation and noise reduction effects are achieved under the normal operation condition of the converter transformer.
The working principle of the invention is as follows: when the converter transformer is in a normal operation condition, the environment temperature is normal at the moment, the top structure has no abnormal change, and the performance of the supporting steel structure 4 is good, at the moment, the top filling sound insulation plate 6 and the explosion venting sound insulation plate 7 mainly play roles in sound insulation and noise reduction, and when a fire breaks out in the converter transformer, because the PA6 hot melt material plates 5 are made of flame-retardant materials, the fire behavior is not increased, the PA6 hot melt material plates 5 are melted in a short time at high temperature until the supporting role disappears, the filling sound insulation plate 6 filled between two adjacent PA6 hot melt material plates 5 and the explosion venting sound insulation plate 7 arranged between two adjacent groups of PA6 hot melt material plates 5 fall off along with the melting, the internal pressure of the Box-in device is increased due to the ignition of the converter transformer, the purpose of pressure relief can be achieved, and the top of the whole converter transformer is exposed in the air and is not closed, so that fire fighting equipment pre-installed on the left side and the right side of the converter transformer And (4) extinguishing fire.
While the embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (5)
1. The utility model provides a be applicable to converter transformer Box-in device top structure which characterized in that: including locating the regional both sides of converter transformer fixed sound insulation board (1) and locate converter transformer rear portion and valve room junction area can dismantle sound insulation board (2) and locate the high temperature subassembly (3) that can fall of the key concern area of fire control, high temperature subassembly (3) that can fall is including supporting steel structure (4), and is fixed in PA6 hot melt material board (5) on supporting steel structure (4), and packs packing sound insulation board (6) between two adjacent PA6 hot melt material boards (5), and locate explosion venting sound insulation board (7) between two sets of adjacent PA6 hot melt material boards (5).
2. The top structure of converter transformer Box-in device according to claim 1, characterized in that: the area of the PA6 hot-melt material plate (5) is larger than that of the supporting steel structure (4), and the PA6 hot-melt material plate (5) is fixed on the supporting steel structure (4) through bolts (9).
3. The top structure of converter transformer Box-in device according to claim 1, characterized in that: the left side and the right side of the explosion venting sound insulation plate (7) are respectively fixed through six PA6 hot melt material plates (5) with the thickness of 20 mm.
4. The top structure of converter transformer Box-in device according to claim 1, characterized in that: the melting point of the PA6 hot-melt material plate (5) is 210 ℃.
5. The top structure of converter transformer Box-in device according to claim 1, characterized in that: and the filling sound insulation plate (6) and the explosion venting sound insulation plate (7) are sealed by a sealant (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308588.6A CN110993291A (en) | 2019-12-18 | 2019-12-18 | Top structure suitable for Box-in device of converter transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308588.6A CN110993291A (en) | 2019-12-18 | 2019-12-18 | Top structure suitable for Box-in device of converter transformer |
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| Publication Number | Publication Date |
|---|---|
| CN110993291A true CN110993291A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911308588.6A Pending CN110993291A (en) | 2019-12-18 | 2019-12-18 | Top structure suitable for Box-in device of converter transformer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763424A (en) * | 2020-07-07 | 2020-10-13 | 国网安徽省电力有限公司电力科学研究院 | Converter transformer hot melting support plate and preparation method thereof |
| CN112615295A (en) * | 2020-12-29 | 2021-04-06 | 广东电网有限责任公司广州供电局 | Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329939A (en) * | 2008-05-04 | 2008-12-24 | 国网直流工程建设有限公司 | BOX-IN denoising technique for large-sized converter transformer |
| CN202153470U (en) * | 2011-08-17 | 2012-02-29 | 中国电力工程顾问集团公司 | Noise reduction structure for converter transformer |
| CN202205566U (en) * | 2011-08-25 | 2012-04-25 | 中国电力工程顾问集团西南电力设计院 | Noise-reducing device for converter transformer |
| CN203760292U (en) * | 2014-01-20 | 2014-08-06 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Transformer sound insulation device |
| CN106384654A (en) * | 2016-10-19 | 2017-02-08 | 中国南方电网有限责任公司超高压输电公司广州局 | Device and method for improving BOX-IN structure used for reducing noises of converter transformer put into operation |
| CN207264890U (en) * | 2017-10-24 | 2018-04-20 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind of denoising structure for converter power transformer |
| CN110180109A (en) * | 2019-04-24 | 2019-08-30 | 武汉南瑞电力工程技术装备有限公司 | A kind of Box-in device having both sound insulation module Yu fire-fighting module |
-
2019
- 2019-12-18 CN CN201911308588.6A patent/CN110993291A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329939A (en) * | 2008-05-04 | 2008-12-24 | 国网直流工程建设有限公司 | BOX-IN denoising technique for large-sized converter transformer |
| CN202153470U (en) * | 2011-08-17 | 2012-02-29 | 中国电力工程顾问集团公司 | Noise reduction structure for converter transformer |
| CN202205566U (en) * | 2011-08-25 | 2012-04-25 | 中国电力工程顾问集团西南电力设计院 | Noise-reducing device for converter transformer |
| CN203760292U (en) * | 2014-01-20 | 2014-08-06 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Transformer sound insulation device |
| CN106384654A (en) * | 2016-10-19 | 2017-02-08 | 中国南方电网有限责任公司超高压输电公司广州局 | Device and method for improving BOX-IN structure used for reducing noises of converter transformer put into operation |
| CN207264890U (en) * | 2017-10-24 | 2018-04-20 | 中国电力工程顾问集团华东电力设计院有限公司 | A kind of denoising structure for converter power transformer |
| CN110180109A (en) * | 2019-04-24 | 2019-08-30 | 武汉南瑞电力工程技术装备有限公司 | A kind of Box-in device having both sound insulation module Yu fire-fighting module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763424A (en) * | 2020-07-07 | 2020-10-13 | 国网安徽省电力有限公司电力科学研究院 | Converter transformer hot melting support plate and preparation method thereof |
| CN112615295A (en) * | 2020-12-29 | 2021-04-06 | 广东电网有限责任公司广州供电局 | Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation |
| CN112615295B (en) * | 2020-12-29 | 2022-01-04 | 广东电网有限责任公司广州供电局 | Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation |
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Application publication date: 20200410 |