CN112615295A - Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation - Google Patents
Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation Download PDFInfo
- Publication number
- CN112615295A CN112615295A CN202011585707.5A CN202011585707A CN112615295A CN 112615295 A CN112615295 A CN 112615295A CN 202011585707 A CN202011585707 A CN 202011585707A CN 112615295 A CN112615295 A CN 112615295A
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- Prior art keywords
- galvanized
- sound insulation
- main transformer
- steel
- angle steel
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- 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
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Abstract
The invention provides a pressure relief, fire prevention and detachable soundproof door structure of a main transformer chamber of an indoor transformer substation, which comprises: the mounting framework comprises a steel column, a connecting beam and a transverse mounting framework; the steel column and a concrete frame of a hole of a main transformer chamber of the transformer substation are fixed by bolts, and the transformer can be dismantled when needing overhaul; the connecting beam and the steel column are fixed by bolts and can be detached; the transverse mounting framework and the steel column are fixed by bolts and can be detached; the sound insulation board is installed on the transverse installation bone. When the indoor transformer of main transformer explodes at first, the acoustic baffle on the main transformer sound-proof door can let out the explosive force fast and scatter, reduces explosive force and to inside and outside injury. In the explosion process of the transformer, along with the generation of a fire disaster, when the internal temperature of the sound insulation plate reaches 200-250 ℃, the sound insulation plate loses rigidity along with the continuous rise of the environmental temperature, and is broken and scattered under the action of self weight to form fragments to fall.
Description
Technical Field
The invention relates to the field of transformer substation noise reduction and fire control, in particular to a pressure relief, fire prevention and detachable sound insulation door structure of a main transformer chamber of an indoor transformer substation.
Background
With the increase of city scale brought by the urbanization development in recent years, along with the transformation and extension of city infrastructure projects, the increase of electricity consumption demand of residents and the increase of power load density lead to that a transformer substation must go deep into a city load center, the transformer substation in the city generally adopts a comprehensive building for controlling land to the maximum extent, and a power distribution unit building is generally divided into a whole-family transformer substation and a half-family transformer substation according to the position and the load condition.
At present, the technology of indoor transformer substations in door and window, wall structures and materials is limited to noise control.
Prior art document 1 (CN 204357314U) discloses a soundproof door combination structure for a transformer substation, which includes a door frame and a door leaf hinged on the door frame, wherein the door leaf is composed of a galvanized steel plate outer casing and a filler filled in the galvanized steel plate outer casing, and the filler is sequentially composed of a damping plate, centrifugal glass wool, a lead plate and a low-frequency cavity resonance sound absorption plate in a sleeved sequence from outside to inside. The prior art document 1 changes the traditional sound insulation door manufacturing method, improves two aspects of reducing the door closing gap and improving the sound insulation quantity of the door leaf, and greatly improves the sound insulation quantity of the door.
Prior art document 2 (CN 202673076U) discloses a soundproof door for a transformer substation, wherein a door gap has an inclination angle of a certain angle, and a sealing strip is provided to reduce noise transmitted from the door gap, and the door panel is a multi-layer composite door panel and has a large thickness, so that the soundproof effect is good.
Prior art document 3 (CN 207609343U) discloses a composite sound insulation door panel, which is suitable for a door of a main transformer room of a transformer substation. The sound insulation board comprises an inner sound insulation board, sound absorption boards are compounded on two surfaces of the inner sound insulation board, outer sound insulation boards are compounded outside the two sound absorption boards, and a steel plate is compounded outside the outer sound insulation boards. By adopting the sound insulation door plate, the noise dispersion in the main transformer chamber can be reduced.
Prior art document 4 (CN 102022013A) discloses a noise reduction structure for a main noise source of an urban indoor substation, wherein a sound absorption material filled in a cavity of a door leaf is glass cloth-wrapped middle-grade glass wool fiber, and a fireproof sound insulation door comprises a galvanized steel plate with a thickness of 1.0, a GF fireproof plate and a galvanized steel plate after 1.0.
In the current engineering practice, a double-opening metal soundproof door is usually installed at a main transformer chamber opening of a 110kV or 220kV indoor substation. In order to facilitate the installation, maintenance and replacement of large-scale equipment, the double-open metal sound insulation door is designed into a sound insulation gate and a small access door. Once explosion and fire happen to a transformer in a main transformer room of a transformer substation, the sound insulation doors in documents 1 to 4 in the prior art and the double-opening metal doors in the current engineering practice have no effective pressure relief, personnel enter the main transformer room through the small access door of the main transformer sound insulation door to open the sound insulation door to extinguish fire, the safety risk is extremely high, and the fire extinguishing control danger is not beneficial to timely carrying out fire extinguishing on site.
In order to reduce the damage to the inside and the outside of the transformer of the main transformer chamber of the 110kV or 220kV indoor transformer substation when the transformer explodes, the sound insulation door of the main transformer chamber of the original indoor transformer substation needs to be transformed, so that the pressure relief and fire fighting can be performed when the explosion and the fire hazard occur in the main transformer chamber. Therefore, the applicant carries out original research and development to indoor main room sound-proof door structure that becomes, makes it satisfy under the function prerequisite of making an uproar that falls, have the fire control function concurrently, becomes room sound-proof door structure that becomes promptly and possesses pressure release, fire prevention function, can dismantle simultaneously.
Disclosure of Invention
The invention provides a pressure relief, fireproof and detachable soundproof door structure for a main transformer chamber of an indoor transformer substation. Ensure that indoor main change room sound proof door structure has autonomic fusing function and pressure release function when exploding, conflagration taking place, still can conveniently dismantle.
The technical scheme of the invention is as follows:
the utility model provides a pressure release, fire prevention, the sound proof door structure of dismantling that indoor transformer substation owner becomes the room, includes: the mounting framework comprises a steel column, a connecting beam and a transverse mounting bone; the steel column and a concrete frame of a hole of a main transformer chamber of the transformer substation are fixed by bolts; the connecting beam and the steel column are fixed by bolts; the transverse mounting bone and the steel column are fixed by bolts; the sound insulation plate is arranged on the transverse mounting bone; the sound insulation small door is arranged at the bottom of the sound insulation door structure.
Further, the method also comprises the following steps: the air inlet silencer is positioned at the bottom of the soundproof door, and the air inlet silencer can be detached and repeatedly installed.
Furthermore, the sound insulation plate is assembled in a modularized mode, and the sound insulation plate is connected with the transverse mounting bone through bolts.
Furthermore, the sound insulation plate is of a sound absorption plate structure made of natural sand grains, and the size of the sound insulation plate is 600mm by 1200mm by 20 mm.
Further, the transverse mounting bone is a galvanized square tube, and the galvanized square tube is connected through galvanized angle steel by adopting a galvanized bolt; the size of the galvanized square pipe is 100mm by 4 mm; the galvanized bolt is M12 x 45 in specification.
Further, the galvanized angle steel comprises a first galvanized angle steel, a second galvanized angle steel and a third galvanized angle steel; the first galvanized angle steel is equal-edge angle steel, and the size is as follows: l63 mm 5 mm; the second galvanized angle steel is inequilateral angle steel, and the size is as follows: l75 mm 45mm 5 mm; the third galvanized angle steel is inequilateral angle steel, and the size is as follows: l50 mm 30mm 2 mm.
Furthermore, the connection mode of the sound insulation plate, the galvanized steel pipe and the galvanized angle steel is as follows: the two first galvanized angle steels are opposite to each other and connected to the steel column through welding; the two second galvanized angle steels face each other, and the long edges of the second galvanized angle steels are connected to the edges, which are not connected with the steel column, of the two first galvanized bolts through galvanized bolts; the two third galvanized angle steels are mutually opposite, and the short sides of the third galvanized angle steels are connected to the outer sides of the long sides of the second galvanized angle steels through welding; the sound insulation plate is connected with the short edge of the third galvanized angle steel through a galvanized bolt, and the upper end part and the lower end part of the sound insulation plate are abutted to the galvanized steel pipe.
Has the advantages that:
the invention provides a soundproof door structure, comprising: pressure relief, fire prevention, can dismantle the function. The sound insulation door structure is located at a main transformer chamber opening of an indoor transformer substation, when a transformer needs to be overhauled, the sound insulation door structure can be detached step by step, and after the transformer is overhauled, the sound insulation door structure of the main transformer can be reinstalled. The sound insulation board on the main transformer sound insulation door adopts a sound absorption board structure formed by manufacturing a metal framework and natural sand grains, and when the transformer in the main transformer room explodes at first, the sound insulation board on the main transformer sound insulation door can rapidly release explosive force, so that the damage of the explosive force to the inside and the outside is reduced. In the explosion process of the transformer, along with the generation of a fire disaster, when the internal temperature of the sound insulation plate reaches 200-250 ℃, the sound insulation plate loses rigidity along with the continuous rise of the environmental temperature, and is broken and scattered under the action of self weight to form fragments to fall. The in-process that drops gradually of acoustic baffle on the soundproof door can aim at the part of catching fire for the fire-fighting lance and put out a fire, provides the space of putting out a fire, increases the accuracy and the efficiency of putting out a fire.
Description of the drawings:
FIG. 1: the front schematic view of the sound insulation door structure;
FIG. 2: the section of the sound-proof door structure is schematic.
Detailed Description
The present invention will be further explained below for better understanding of the objects, technical solutions and technical effects of the present invention, but the scope of the present invention is not limited to the following examples.
Examples
As shown in fig. 1-2, a pressure release, fire prevention, can dismantle soundproof door structure of indoor transformer substation owner become room includes: the mounting framework comprises a steel column 1, a connecting beam 2 and a transverse mounting bone 3; the steel column 1 and a concrete frame of a hole of a main transformer chamber of the transformer substation are fixed by bolts, and the transformer can be dismantled when needing overhaul; the connecting beam 2 and the steel column 1 are fixed by bolts and can be detached; the transverse mounting ribs 3 and the steel column 1 are fixed by bolts and can be detached; the sound insulation plate 4 is mounted on the transverse mounting bone 3.
Further, the method also comprises the following steps: the air inlet silencer 6 is located at the bottom of the soundproof door structure, the ventilation and heat dissipation in the main transformer chamber can be carried out, and the air inlet silencer can be detached and repeatedly installed. And ventilation shutters are arranged on the outer side of the air inlet silencer 6.
Further, the method also comprises the following steps: and a sound insulation small door 5 arranged at the bottom of the sound insulation door structure is used for the daily maintenance of maintainers. The plate of the sound insulation small door 5 can be selected as the sound insulation plate 4.
Furthermore, the sound insulation plate 4 is assembled in a modularized mode, and the sound insulation plate 4 is connected with the transverse mounting bone 3 through bolts and can be detached. The sound insulation plate 4 is 600mm 1200mm 20mm in size.
Furthermore, the sound insulation board 4 is of a sound absorption board structure made of natural sand grains, and when the transformer in the main transformer chamber explodes at first, the sound insulation board on the main transformer sound insulation door can rapidly release explosive force, so that damage to the inside and the outside caused by the explosive force is reduced. In the explosion process of the transformer, along with the generation of a fire disaster, when the internal temperature of the sound insulation plate reaches 200-250 ℃, the sound insulation plate loses rigidity along with the continuous rise of the environmental temperature, and is broken and scattered under the action of self weight to form fragments to fall.
Further, the transverse mounting bone 3 is a galvanized square pipe, and the galvanized square pipe is connected through galvanized angle steel by adopting a galvanized bolt. The size of the galvanized square pipe is 100mm by 4 mm. The galvanized bolt is M12 x 45 in specification.
Further, the galvanized angle steels comprise a first galvanized angle steel 7, a second galvanized angle steel 8 and a third galvanized angle steel 9; the first galvanized angle steel 7 is equal-edge angle steel, and the size is as follows: l63 mm 5 mm; the second galvanized angle steel 8 is inequilateral angle steel, and has the following dimensions: l75 mm 45mm 5 mm; the third galvanized angle steel 9 is inequilateral angle steel with the size: l50 mm 30mm 2 mm.
The connection mode of the sound insulation plate 4, the galvanized steel pipe and the galvanized angle steel is as follows: the two first galvanized angle steels 7 are opposite to each other and connected to the steel column 1 through welding; the two second galvanized angle steels 8 face each other, and the long sides of the second galvanized angle steels 8 are connected to the sides of the two first galvanized bolts, which are not connected with the steel column 1, through galvanized bolts; the two third galvanized angle steels 9 are opposite to each other, and the short sides of the third galvanized angle steels 9 are connected to the outer sides of the long sides of the second galvanized angle steels 8 through welding; the sound insulation plate is connected with the short edge of the third galvanized angle steel 9 through a galvanized bolt, and the upper end part and the lower end part of the sound insulation plate 4 are abutted against the galvanized steel pipe.
The invention discloses a pressure relief, fire prevention and detachable sound insulation door structure of a main transformer chamber of an indoor transformer substation, which is claimed to be protected, and through explosion relief performance tests, specific parameters are shown in table 1:
the working principle and the advantages are as follows: the invention provides a pressure relief, fire prevention and detachable sound insulation door structure for a main transformer chamber of an indoor transformer substation, wherein the inner side and the outer side are not provided with metal plate structures, the inner side directly faces to equipment inside the main transformer chamber, and the adopted sound insulation plate is a patent product of the applicant; during normal use, have the sound absorption of preferred and fall the function of making an uproar, in case main indoor transformer when exploding, the acoustic baffle on the main change sound-proof door can let out the powder of explosion rapidly, reduces the powder of explosion and to inside and outside injury. In the explosion process of the transformer, along with the generation of a fire disaster, when the internal temperature of the sound insulation plate reaches 200-250 ℃, the sound insulation plate loses rigidity along with the continuous rise of the environmental temperature, and is broken and scattered under the action of self weight to form fragments to fall off, so that a space is provided for fire fighting. Because sound insulation board, installation skeleton all adopt to dismantle connected mode, during installation, change, maintenance equipment, the repeated installation can be dismantled to sound insulation door structure that this application provided. Compared with the existing sound-proof door of the main transformer chamber, the pressure-relief, fireproof and detachable sound-proof door structure for the main transformer chamber of the indoor transformer substation has the pressure-relief function and the automatic fusing function which are not available in the prior art.
The above examples are intended to be illustrative of possible embodiments of the invention and are not intended to limit the scope of the invention, which is intended to be covered by the claims unless the invention is modified or practiced in a manner that is equivalent to the practice of the invention or otherwise applied to a fire fighting environment other than that of the converter, but which is also intended to meet the fire fighting requirements.
Claims (8)
1. The utility model provides a pressure release, fire prevention, the sound proof door structure of dismantling that indoor transformer substation owner becomes the room, includes: installation skeleton, sound insulation board and sound insulation wicket, its characterized in that: the mounting framework comprises a steel column, a connecting beam and a transverse mounting framework; the steel column and a concrete frame of a hole of a main transformer chamber of the transformer substation are fixed by bolts; the connecting beam and the steel column are fixed by bolts; the transverse mounting bone and the steel column are fixed by bolts; the sound insulation plate is arranged on the transverse mounting bone; the sound insulation small door is arranged at the bottom of the sound insulation door structure.
2. The pressure relief, fire prevention, removable soundproof door structure of the main transformer room of the indoor substation of claim 1, further comprising: and the air inlet silencer is positioned at the bottom of the soundproof door.
3. The pressure relief, fire prevention, removable acoustic door structure of indoor substation main transformer room of claim 1, the acoustic baffle adopts the modularization equipment, the acoustic baffle adopts bolted connection with the horizontal installation bone.
4. The pressure relief, fire prevention, removable acoustical door structure of the main transformer room of the indoor substation of claim 1, said acoustical panel is an acoustical panel structure made of natural sand.
5. The pressure relief, fire prevention, detachable soundproof door structure of the main transformer room of the indoor substation of claim 1, wherein the transverse installation bone is a galvanized square pipe, and the galvanized square pipe is connected by galvanized angle steel through a galvanized bolt; the size of the galvanized square pipe is 100mm by 4 mm.
6. The pressure relief, fire resistant, removable acoustic door structure of a main transformer room of an indoor substation of claim 5, said galvanized angle steels comprising a first galvanized angle steel, a second galvanized angle steel and a third galvanized angle steel; the first galvanized angle steel is equilateral angle steel; the second galvanized angle steel is inequilateral angle steel; the third galvanized angle steel.
7. The pressure relief, fire prevention and detachable sound insulation door structure of the main transformer chamber of the indoor substation of claim 6, wherein the connection modes of the sound insulation plate, the galvanized steel pipe and the galvanized angle steel are as follows: the two first galvanized angle steels are opposite to each other and connected to the steel column through welding; the two second galvanized angle steels face each other, and the long edges of the second galvanized angle steels are connected to the edges, which are not connected with the steel column, of the two first galvanized bolts through galvanized bolts; the two third galvanized angle steels are mutually opposite, and the short sides of the third galvanized angle steels are connected to the outer sides of the long sides of the second galvanized angle steels through welding; the sound insulation plate is connected with the short edge of the third galvanized angle steel through a galvanized bolt, and the upper end part and the lower end part of the sound insulation plate are abutted to the galvanized steel pipe.
8. The pressure relief, fire prevention, removable soundproof door structure of the main transformer room of the indoor substation of claim 6, wherein the first galvanized angle steel has the dimensions: l63 mm 5 mm; the size of the second galvanized angle steel is as follows: l75 mm 45mm 5 mm; the third galvanized angle steel has the following dimensions: l50 mm 30mm 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585707.5A CN112615295B (en) | 2020-12-29 | 2020-12-29 | Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585707.5A CN112615295B (en) | 2020-12-29 | 2020-12-29 | Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation |
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| Publication Number | Publication Date |
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| CN112615295A true CN112615295A (en) | 2021-04-06 |
| CN112615295B CN112615295B (en) | 2022-01-04 |
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| CN202011585707.5A Active CN112615295B (en) | 2020-12-29 | 2020-12-29 | Pressure relief, fireproof and detachable soundproof door structure for main transformer chamber of indoor transformer substation |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110308825A1 (en) * | 2007-07-11 | 2011-12-22 | Acxing Industrial Co., Ltd. | Automatic fire extinguishing equipment of a fume hood |
| CN202416565U (en) * | 2011-12-06 | 2012-09-05 | 金华电业局 | Modular electric substation noise control structure with quick disassembling and assembling |
| CN205688604U (en) * | 2016-06-24 | 2016-11-16 | 湖州晶晶环保科技有限公司 | A kind of dismountable ventilation and pressure release wall |
| CN106374376A (en) * | 2016-09-28 | 2017-02-01 | 合肥华义电气科技有限公司 | Intelligent fireproof and explosion-proof outdoor substation |
| CN106786042A (en) * | 2016-12-02 | 2017-05-31 | 湖南送变电站勘察设计咨询有限公司 | A kind of indoor substation ventilating noise-elimination pressure release integration unit |
| CN207160320U (en) * | 2017-08-18 | 2018-03-30 | 北京翼扬环境工程有限公司 | Sound-insulation wall |
| CN208965755U (en) * | 2018-10-10 | 2019-06-11 | 天津森一建设工程有限公司 | A kind of novel building engineering soundproof plate |
| CN110993291A (en) * | 2019-12-18 | 2020-04-10 | 国网电力科学研究院有限公司 | Top structure suitable for Box-in device of converter transformer |
| CN111696768A (en) * | 2020-05-13 | 2020-09-22 | 云南电网有限责任公司 | Outdoor transformer noise reduction method |
-
2020
- 2020-12-29 CN CN202011585707.5A patent/CN112615295B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110308825A1 (en) * | 2007-07-11 | 2011-12-22 | Acxing Industrial Co., Ltd. | Automatic fire extinguishing equipment of a fume hood |
| CN202416565U (en) * | 2011-12-06 | 2012-09-05 | 金华电业局 | Modular electric substation noise control structure with quick disassembling and assembling |
| CN205688604U (en) * | 2016-06-24 | 2016-11-16 | 湖州晶晶环保科技有限公司 | A kind of dismountable ventilation and pressure release wall |
| CN106374376A (en) * | 2016-09-28 | 2017-02-01 | 合肥华义电气科技有限公司 | Intelligent fireproof and explosion-proof outdoor substation |
| CN106786042A (en) * | 2016-12-02 | 2017-05-31 | 湖南送变电站勘察设计咨询有限公司 | A kind of indoor substation ventilating noise-elimination pressure release integration unit |
| CN207160320U (en) * | 2017-08-18 | 2018-03-30 | 北京翼扬环境工程有限公司 | Sound-insulation wall |
| CN208965755U (en) * | 2018-10-10 | 2019-06-11 | 天津森一建设工程有限公司 | A kind of novel building engineering soundproof plate |
| CN110993291A (en) * | 2019-12-18 | 2020-04-10 | 国网电力科学研究院有限公司 | Top structure suitable for Box-in device of converter transformer |
| CN111696768A (en) * | 2020-05-13 | 2020-09-22 | 云南电网有限责任公司 | Outdoor transformer noise reduction method |
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| CN112615295B (en) | 2022-01-04 |
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Effective date of registration: 20230703 Address after: 510620, No. two, No. 2, Tianhe South Road, Guangzhou, Guangdong, Tianhe District Patentee after: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Address before: 510620, No. two, No. 2, Tianhe South Road, Guangzhou, Guangdong, Tianhe District Patentee before: Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd. Patentee before: ZHENG SHENG ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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