CN211181833U - Pressure relief structure suitable for converter transformer Box-in device top - Google Patents
Pressure relief structure suitable for converter transformer Box-in device top Download PDFInfo
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- CN211181833U CN211181833U CN201922279797.4U CN201922279797U CN211181833U CN 211181833 U CN211181833 U CN 211181833U CN 201922279797 U CN201922279797 U CN 201922279797U CN 211181833 U CN211181833 U CN 211181833U
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Abstract
The utility model relates to a power industry power transmission and transformation equipment sound insulation and fire control are fallen and fire control safety technical field, refer in particular to a pressure relief structure suitable for converter transformer Box-in device top, change of current transformer bushing assembly including locating converter transformer Box-in device top, change of current transformer bushing assembly including the supporting steel structure and be fixed in the PA6 hot melt material board on the supporting steel structure and locate the packing sound insulation board on the PA6 hot melt material board and let out and explode the sound insulation board, pack the sound insulation board and let out and explode between the sound insulation board and articulate through hinge assembly. 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 converter transformer can automatically fall off after pressure relief when the fire pressure is high, the design is simple, and the converter transformer can be widely applied to noise control and fire-fighting modification of a converter station.
Description
Technical Field
The utility model relates to a power industry power transmission and transformation equipment sound insulation and fire control are fallen and fire control safety technical field, refer in particular to a pressure relief structure suitable for converter transformer Box-in device top.
Background
The converter station is the most important node of the direct current transmission line, and the key of ensuring the safe and stable operation of the converter station is direct current transmission. The converter transformer is one of the most important devices of the converter station, and the converter transformer is used as a main noise source in the converter station, and a corresponding noise reduction scheme needs to be adopted to reduce the factory boundary noise of the converter station, so that an environment-friendly power grid is realized. The sound insulation cover (Box-in) is widely applied to noise reduction engineering of the current converter transformer due to the obvious noise reduction effect. However, when the Box-in is used as a closed device, if the converter transformer is in fire due to failure, the internal pressure of the Box-in is increased instantaneously, explosion can be caused, and irreversible damage can be caused to equipment around the converter transformer, so that great economic loss is generated. Therefore, on the premise of not influencing the normal operation of the converter transformer, necessary equipment protection measures need to be taken, and the Box-in top structure of the converter transformer is improved, so that the closed Box-in device can realize automatic pressure relief when the converter transformer is in fire, the converter transformer is prevented from exploding due to the fire, and the economic loss caused under the emergency condition 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. Above-mentioned scheme all relates to and adopts the closing means to fall the noise processing to transformer substation internal plant, but does not all consider the problem that the fire control safety field may appear, if when the conflagration breaks out, the easy explosion that takes place of confined sound arrester, still lacks an effective improvement measure to Box-in noise reduction device top structure now to make the device can satisfy the requirement of making an uproar and fall the sound insulation and also can satisfy the requirement of fire control safety.
Disclosure of Invention
To the above problem, the utility model provides a pressure release structure suitable for converter transformer Box-in device top makes things convenient for the fire control to put out a fire measure and makes things convenient for converter transformer operation and maintenance to overhaul.
In order to achieve the above purpose, the utility model discloses the technical scheme who uses as follows:
the pressure relief structure suitable for the top of the converter transformer Box-in device comprises a supporting steel structure arranged on the top of the converter transformer Box-in device, a PA6 hot-melt material plate fixed on the supporting steel structure, and a filling sound insulation plate and an explosion venting sound insulation plate which are arranged on the PA6 hot-melt material plate, wherein the filling sound insulation plate is hinged with the explosion venting sound insulation plate through a hinge assembly.
Further, the hinge assembly comprises an angle steel and a hinge, one end of the angle steel is fixed on the explosion venting sound insulation plate, the other end of the angle steel is fixed with one end of the hinge, and the other end of the hinge is fixed with the filling sound insulation plate.
Further, the angle steel is fixed on the explosion venting sound insulation plate through a sealant.
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 ℃.
The utility model discloses beneficial effect:
the utility model discloses a such structure setting can satisfy the sound insulation when the commutation changes the daily operation and fall the needs of making an uproar, can conveniently carry out the operation again and maintain the maintenance, also can adapt to the commutation changes and take place automatic the droing after the pressure release when fire pressure is great, and the design is simple, can extensively use in converter station noise control and fire control transformation.
Drawings
FIG. 1 is a schematic diagram of a top pressure relief structure of the converter transformer Box-in of the present invention;
FIG. 2 is a schematic view of the top acoustic panel of Box-in turned over;
FIG. 3 is an enlarged and inverted view of the top acoustic panel of Box-in.
1. The converter transformer comprises a converter transformer sleeve, 2. a filling sound insulation plate, 3.PA6 hot-melt material plates, 4. bolts, 5. a supporting steel structure, 6. angle steel, 7. hinges, 8. an explosion venting sound insulation plate and 9. sealant.
Detailed Description
The technical solution of the present invention will be described below with reference to the accompanying drawings and examples.
As shown in FIG. 1, a pressure release structure suitable for converter transformer Box-in device top, including the support steel construction 5 of locating converter transformer Box-in device top and be fixed in PA6 hot melt material board 3 on the support steel construction 5 and locate the packing sound insulation board 2 on PA6 hot melt material board 3 and let out and explode the sound insulation board 8, pack the sound insulation board 2 and let out and explode between the sound insulation board 8 and articulate through articulated subassembly.
The utility model mainly carries out the reformation aiming at the fire-fighting problem on the original closed top surface of the converter transformer Box-in device, the converter transformer sleeve 1 is an area where the fire condition is possibly large, a PA6 hot-melt material plate 3 is fixed on a supporting steel structure 5, and a filling sound-proof plate 2 and an explosion-proof sound-proof plate 8 are arranged on the PA6 hot-melt material plate 3, when the converter transformer is in the normal working state, the filling sound-proof plate 2 and the explosion-proof sound-proof plate 8 play the functions of sound insulation and noise reduction, when the converter transformer is in fire, the PA6 hot-melt material plate 3 can be melted under the condition of high temperature, the filling sound-proof plate 2 and the explosion-proof sound-proof plate 8 can fall off when melting, the top of the whole converter transformer can be exposed in the air, the fire-fighting equipment which is pre-installed at the back top of the converter transformer can be helped to put into use immediately to put out the fire, and when the internal pressure of the converter transformer is, the filling sound insulation plate 2 can be turned over to realize the pressure relief function, and meanwhile, along with the rise of temperature, the PA6 hot-melt material plate 3 is melted, the explosion venting sound insulation plate 8 correspondingly falls off, and the explosion venting function is realized.
More specifically, the hinge assembly comprises an angle steel 6 and a hinge 7, wherein one end of the angle steel 6 is fixed on an explosion venting sound insulation plate 8, the other end of the angle steel 6 is fixed with one end of the hinge 7, and the other end of the hinge 7 is fixed with the filling sound insulation plate 2. By adopting the structure, the hinge function between the filling sound insulation board 2 and the explosion venting sound insulation board 8 is realized.
More specifically, the angle steel 6 is fixed on the explosion venting sound insulation plate 8 through a sealant.
More specifically, the area of the PA6 hot melt material plate 3 is larger than the supporting area of the supporting steel structure 5, and the PA6 hot melt material plate 3 is fixed on the supporting steel structure 5 through bolts 4.
More specifically, the left and right sides of the explosion venting sound insulation plate 8 are respectively fixed by six PA6 hot melt material plates 3 with the thickness of 20 mm. In practical application, the bearing capacity of a single PA6 hot-melt material plate 3 is about 54kg, and the total bearing capacity of six PA6 hot-melt material plates 3 with the thickness of 20mm is about 324kg, so that the supporting performance of the PA6 hot-melt material plates 3 is ensured, the six PA6 hot-melt material plates 3 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 3 is 210 ℃.
In practice, the PA6 hot-melt material plate 3 has a flame-retardant effect and melts only when the temperature reaches 210 ℃.
The utility model discloses the theory of operation:
when a fire breaks out in the converter transformer, two cases are assumed: the first condition is that the fire condition is gradually increased, at the moment, the internal pressure of the Box-in is not suddenly increased but is a slowly-changing process, at the moment, because the pressure is insufficient to enable the filling sound insulation plate 2 to explode, when the temperature in the Box-in gradually reaches the melting point of the PA6 hot-melt material plate 3, the PA6 hot-melt material plate 3 is melted to cause the explosion venting sound insulation plate 8 to fall off, namely, when the fire disaster occurs, if the internal pressure of the Box-in device is not large, the structure mainly plays a role of falling off at the moment; the second situation is that fire is severe, Box-in internal pressure is increased sharply, if the fire pressure cannot be released rapidly, explosion can be caused, because a certain time is required for melting the PA6 hot-melt material plate 3, the pressure increase caused by the ignition of the converter transformer firstly leads the filling sound insulation plate 2 at the top of the converter transformer sleeve 1 to be stressed and firstly turned over under the action of the hinge 7, the turning direction of each filling sound insulation plate 2 is shown by an arrow in figure 1, the turning specific situation is shown in figures 2 and 3, the PA6 hot-melt material plate 3 is fixed on the supporting steel structure 5 by the bolt 4 and extends out of the supporting steel structure 5 for a certain distance as shown in figure 2, then the upper end of the angle steel 6 is fixed on the filling sound insulation plate 2 placed on the supporting steel structure 5 by using sealant, the hinge 7 capable of setting the turning angle is adopted on the other side of the end to fix the explosion release sound insulation plate 8, as shown in fig. 2, the explosion venting and sound insulation plates 8 at both sides of the filling sound insulation plate 2 can be turned over in the same direction when the internal pressure of the Box-in device is increased sharply, and when the two upward turning explosion venting and sound insulation plates 8 collide, the pressure acting on the two explosion venting and sound insulation plates 8 can be released through the collision action, namely, the internal pressure release is completed at the moment. After the pressure relief is finished, the PA6 hot-melt material plate 3 is gradually melted along with the increase of the fire, and at the moment, the explosion venting sound insulation plate 8 also falls off after the explosion venting is finished, so that the structure mainly plays an explosion venting role.
In any case, after the explosion venting sound insulation plate 8 completes the function, the explosion venting sound insulation plate can fall off, the top area of the converter transformer is not closed at that time, and fire fighting equipment on two sides of the firewall is started to extinguish fire.
The embodiments of the present invention have been described with reference to the accompanying drawings, but 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 many forms without departing from the spirit and scope of the present invention, and these forms are within the scope of the present invention.
Claims (6)
1. The utility model provides a pressure release structure suitable for converter transformer Box-in device top which characterized in that: the converter transformer Box-in device comprises a supporting steel structure (5) arranged at the top of the converter transformer Box-in device, a PA6 hot-melt material plate (3) fixed on the supporting steel structure (5), and a filling sound insulation plate (2) and an explosion venting sound insulation plate (8) arranged on the PA6 hot-melt material plate (3), wherein the filling sound insulation plate (2) and the explosion venting sound insulation plate (8) are hinged through a hinge assembly.
2. The pressure relief structure suitable for the top of the converter transformer Box-in device according to claim 1, wherein: the hinge assembly comprises angle steel (6) and a hinge (7), one end of the angle steel (6) is fixed on the explosion venting sound insulation plate (8), the other end of the angle steel (6) is fixed with one end of the hinge (7), and the other end of the hinge (7) is fixed with the filling sound insulation plate (2).
3. The pressure relief structure suitable for the top of the converter transformer Box-in device according to claim 2, wherein: the angle steel (6) is fixed on the explosion venting sound insulation plate (8) through a sealant.
4. The pressure relief structure suitable for the top of the converter transformer Box-in device according to claim 1, wherein: the area of the PA6 hot-melt material plate (3) is larger than that of the supporting steel structure (5), and the PA6 hot-melt material plate (3) is fixed on the supporting steel structure (5) through bolts (4).
5. The pressure relief structure suitable for the top of the converter transformer Box-in device according to claim 1, wherein: the left side and the right side of the explosion venting sound insulation plate (8) are respectively fixed through six PA6 hot melt material plates (3) with the thickness of 20 mm.
6. The pressure relief structure suitable for the top of the converter transformer Box-in device according to claim 1, wherein: the melting point of the PA6 hot-melt material plate (3) is 210 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922279797.4U CN211181833U (en) | 2019-12-18 | 2019-12-18 | Pressure relief structure suitable for converter transformer Box-in device top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922279797.4U CN211181833U (en) | 2019-12-18 | 2019-12-18 | Pressure relief structure suitable for converter transformer Box-in device top |
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| Publication Number | Publication Date |
|---|---|
| CN211181833U true CN211181833U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922279797.4U Active CN211181833U (en) | 2019-12-18 | 2019-12-18 | Pressure relief structure suitable for converter transformer Box-in device top |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068141A (en) * | 2021-10-29 | 2022-02-18 | 国网湖南省电力有限公司 | Fire-proof explosion-venting sound insulation cover for transformer |
-
2019
- 2019-12-18 CN CN201922279797.4U patent/CN211181833U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114068141A (en) * | 2021-10-29 | 2022-02-18 | 国网湖南省电力有限公司 | Fire-proof explosion-venting sound insulation cover for transformer |
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