CN108281249B - Side sleeve transformer oil baffle device - Google Patents
Side sleeve transformer oil baffle device Download PDFInfo
- Publication number
- CN108281249B CN108281249B CN201810244643.9A CN201810244643A CN108281249B CN 108281249 B CN108281249 B CN 108281249B CN 201810244643 A CN201810244643 A CN 201810244643A CN 108281249 B CN108281249 B CN 108281249B
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- Prior art keywords
- transformer
- oil
- oil baffle
- fireproof
- movable
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- 238000004880 explosion Methods 0.000 claims abstract description 31
- 238000007689 inspection Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000003915 air pollution Methods 0.000 description 5
- 238000003911 water pollution Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 238000003892 spreading Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
-
- 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
Abstract
The utility model discloses an oil baffle device of a side sleeve transformer, which is mainly used for protecting the splashing and flowing transformer oil after the explosion of the side sleeve transformer, and is arranged at the position of about 1.5-2 m outside the side sleeve of the transformer, and mainly comprises four components, namely a vertical movable fireproof oil baffle plate, an inclined movable fireproof oil baffle plate, a movable inspection door and a transformer explosion fire protection wall; the vertical movable fireproof oil baffle is arranged by depending on an established transformer firewall or a newly-established transformer explosion fire protection wall; the inclined movable fireproof oil baffle plates are arranged at the two sides of the side sleeve in a range larger than 2 m; the movable patrol door is arranged on patrol lanes or fire-fighting lanes on two sides of the transformer; the explosion fire protection walls of the transformers are arranged on two sides of the independent or adjacent transformers.
Description
Technical Field
The utility model belongs to a fire-fighting facility of a transformer substation, and particularly relates to a fireproof protection technology of an oil baffle device of a side sleeve transformer.
Background
For a long time, the main transformer fireproof design of the transformer substation core equipment mainly adopts the steps that fireproof intervals, fireproof walls and oil storage tanks of the transformers, oil discharge pipelines of the oil storage tanks, total accident oil tanks and the like are arranged between the main transformers in the range of 1.0-1.5 m according to specifications, and according to fire case analysis, at most, the oil storage, oil discharge and fireproof facilities of the existing specifications can only meet the requirements of oil storage, oil discharge and fireproof of part of transformer oil after explosion of a top sleeve transformer, but cannot meet the fireproof requirements of a side sleeve transformer.
The method is characterized in that a 1# main transformer A-phase 250MVA transformer high-voltage sleeve and a lifting seat of a side sleeve structure of a 500kV transformer substation in the city of Yunnan province are seriously exploded in 22 days of 7 months in 2015, the high-voltage sleeve and the lifting seat of the transformer are all exploded, a pipe network of a water spray fire extinguishing system of the transformer is broken down by the exploded transformer parts, the water spray fire extinguishing system is disabled, the farthest transformer parts fly out of 50m of the transformer, fall on the ground after hitting the outer wall of a 500kV distribution device room, a large amount of transformer oil is sprayed out from the joint of the lifting seat of the high-voltage sleeve and the transformer body after explosion, the spraying range exceeds 40-50 m, and if the transformer is not separated by a firewall, the surrounding transformer is likely to spread fire. After analysis, about 10-20% of transformer oil in the transformer oil of the accident transformer is splashed onto the adjacent (1 # main transformer B phase and 2# main transformer C phase) transformers, the main transformer site, the main transformer firewall, the main cable trench, the 500kV distribution device site and the main transformer transportation path, 60-70% of transformer oil flows out rapidly from the side sleeve openings of the transformers, part of transformer oil flows onto the transformer site outside the transformer oil storage tank and the main transformer transportation path, part of transformer oil is discharged to the total accident oil tank along the accident oil discharging system, the rest about 15-20% of transformer oil stays in the transformer body, and a large-area transformer oil spreading fire, continuous fire and reburning fire are formed after the splashing and flowing transformer oil temperature is far higher than the self-ignition point temperature. The accident transformer has the fire time of 22 days, 1.1.22 minutes in the early morning, the fire department reaches the fire scene of the transformer substation at 2 o 'clock, the load transfer of the transformer substation at 2 o' clock and 25 minutes is completed, the main transformer at 1# and 2# enters into cold standby, the fire department starts to extinguish fire, the open fire at 2 o 'clock and the surrounding site is extinguished, the fire is extinguished at 5 o' clock in the morning, the duration of the fire is 4 hours and 40 minutes, the fire extinguishing time is 2 hours, after the fire transformer oil is basically burnt out, a small amount of flowing transformer oil is discharged outside the station through a road and site drainage system after the fire department adopts fire truck water for fire fighting, and the surrounding environment water pollution is caused.
As can be seen from the above fire cases, the side sleeve transformer explosion fire is a common fire type in the transformer fire, particularly when a severe explosion fire occurs, as the side sleeve and the lifting seat of the transformer are all exploded, the oil quantity of the splashed and flowing transformer oil exceeds 80% of the total oil quantity of the transformer, wherein the splashing range of the transformer oil accounting for 10-20% of the total oil quantity reaches 40-50 m, and if no transformer firewall protection exists, the surrounding transformer fire can spread, so the transformer firewall is an indispensable component for preventing the side sleeve transformer fire, and in addition, in order to prevent the splashing of the transformer oil, splash prevention measures are adopted; the transformer oil accounting for 60-70% of the total oil quantity flows to an oil storage pool, a transformer site and a main transformer transportation road on one side of a transformer side sleeve, and exceeds the protection range of the transformer oil storage pool and an oil discharge system, so that large-area splashing flow fire disaster is caused, the transformer fire extinguishing system is not only invalid, but also the fire extinguishing difficulty is increased, the duration of the fire disaster is 4 hours and 40 minutes, the fire extinguishing time is 2 hours, and a large amount of air pollution is caused by long-time fire extinguishment; after fire-fighting teams extinguish fire by adopting water fire-fighting facilities, the water body around the transformer substation is seriously polluted by flowing transformer oil; the number of substations adopting side sleeve transformers in certain areas is large, and the losses of some substations at the periphery of water source protection areas, reservoirs and scenic spots can not be estimated once the explosion fire occurs. In order to make the side sleeve transformer oil splash and flow protection and fire prevention and reduce air pollution and water pollution, the side sleeve oil baffle device of the transformer is necessary to be arranged.
Disclosure of Invention
The utility model aims to provide an effective oil baffle device of a side sleeve transformer for the side sleeve transformer, which is combined with a fire wall or a transformer explosion fire protection wall and is used for protecting splashing flow transformer oil caused by severe explosion of the side sleeve transformer.
The technical scheme of the utility model is as follows:
the method comprises the steps of analyzing the influence of the severe explosion fire of the side sleeve transformer, grasping the characteristic of the severe explosion fire of the side sleeve transformer, arranging the oil baffle device of the side sleeve transformer on the part where the severe explosion splash flow of the side sleeve transformer possibly occurs and spreading the influence of the fire, combining a firewall or a protective wall, verifying the feasibility of the oil baffle device through the oil baffle test of the side sleeve transformer oil, improving the composition structure of the oil baffle device, and meeting the oil baffle requirement of the side sleeve transformer explosion fire.
The specific technical scheme is as follows:
the device consists of four components, namely a vertical movable fireproof oil baffle, an inclined movable fireproof oil baffle, a movable inspection door and a transformer explosion fire protection wall; the component materials are fireproof materials with oil blocking strength (preferably light materials), and the whole device is arranged on one side of a transformer with a side high-voltage sleeve and is arranged at a distance of about 1.5-2.5 m from the edge of the side sleeve; the vertical movable fireproof oil baffle is arranged by depending on an established transformer firewall or a newly-established transformer explosion fire protection wall; the inclined movable fireproof oil baffle is arranged at the two sides of the side sleeve within the range of about 1.8-2.2 m; the movable inspection doors are arranged on the inspection lanes or the fire-fighting lanes on the two sides of the transformer and can be arranged into one or two movable inspection doors according to the requirement; the transformer explosion fire protection walls are arranged on two sides of independent or adjacent transformers, the length of each protection wall is consistent with the fire protection wall requirement of the transformer, and the protection walls are provided with splash prevention devices;
wherein: the vertical movable fireproof oil baffle 1 consists of an oil baffle foundation, an embedded part embedded in the oil baffle foundation, a stand column connected with the embedded part by adopting bolts, a bottom cross beam connected with the stand column by adopting bolts, welding or bayonets, a top cross beam connected with the stand column by adopting bolts, welding or bayonets, and a fireproof oil baffle fixed among the bottom cross beam, the stand column and the top cross beam; the inclined movable fireproof oil baffle assembly consists of an inclined short cantilever beam fixed with the top beam by adopting bolts and bayonets and a fireproof oil baffle fixed between the top beam and the inclined short cantilever beam; the movable inspection door assembly consists of a door gap sealing plate welded on the upright post, a door hinge, a door frame, a fireproof oil baffle plate fixed on the door frame and a door lock; the explosion and fire protection wall of the transformer is shown in the prior utility model patent of the applicant: main transformer explosion fire protection wall, patent number: 2016211340092.
in order for the technology of the utility model to function, the transformer oil storage tank is arranged outside the transformer, an oil baffle area bottom plate is arranged between the oil baffle device foundation and the oil storage tank, an oil drain hole is arranged on the tank wall of the oil storage tank, and an oil drain well is arranged at one corner of the oil storage tank. The transformer substation accident oil drain pipeline and the total accident oil pool are connected after the oil drain well 8.
The beneficial effects of the utility model are as follows: the device is an indispensable protection facility for the transformer oil after the severe explosion of the side sleeve transformer, can furthest prevent the splashing and flowing transformer oil generated after the severe explosion fire disaster of the side sleeve transformer, limit the fire disaster of the transformer oil to the protection range of a fire extinguishing system and prevent the occurrence of large-area spreading fire disaster; and the oil discharge system is combined with an oil discharge system to rapidly discharge transformer oil, so that the fire extinguishing time is shortened, the air pollution is reduced, and the water pollution is reduced.
Drawings
FIG. 1 is a schematic plan view of an arrangement position of the present utility model;
FIG. 2 is a schematic elevation view of an arrangement position of the present utility model;
FIG. 3 is a schematic diagram of the structure of the present utility model.
Detailed Description
The oil baffle device of the side sleeve transformer is further described below with reference to the accompanying drawings.
Referring to fig. 1, an oil baffle device of a side bushing transformer is arranged at one side of the transformer with a side high-voltage bushing, and is arranged at a distance of about 1.5-2.5 m from the edge of the side bushing; the vertical movable fireproof oil baffle plate 1 is arranged by depending on an established transformer firewall or a newly-established transformer explosion fire protection wall 4; the inclined movable fireproof oil baffle plates 2 are arranged at the two sides of the side sleeve in a range larger than 2 m; the movable patrol door 3 is arranged on patrol lanes or fire-fighting lanes on two sides of the transformer; the transformer explosion fire protection walls 4 are arranged on two sides of independent or adjacent transformers, the length of each protection wall is consistent with the fire protection wall requirement of the transformer, and the protection walls are provided with splash prevention devices according to patents;
when the side sleeve transformer oil baffle device is concretely implemented, an oil baffle area bottom plate 6 with an oil discharge gradient is arranged between the oil baffle device and an oil storage tank 5, an oil discharge hole 7 is arranged on the tank wall of the downhill oil storage tank 5, transformer oil blocked by the device flows into the oil storage tank 5 through the oil baffle area bottom plate 6 with the oil discharge gradient and the oil discharge hole 6, the oil storage tank 5 is also provided with an oil discharge gradient at the bottom, a slope oil discharge well 7 is arranged on the slope, the oil discharge well is connected with an oil discharge system pipeline of a transformer substation and a total accident oil tank, and finally the transformer oil is discharged to the total accident oil tank; the oil discharge gradient is properly amplified under the condition that the transportation and maintenance of the main transformer are not affected, so that the transformer oil can be conveniently discharged as soon as possible, the fire extinguishing time is shortened, the air pollution is reduced, and the water pollution is reduced;
referring to fig. 3, the oil baffle device of the side sleeve transformer is characterized by comprising 4 large components such as a vertical movable fireproof oil baffle 1, an inclined movable fireproof oil baffle 2, a movable inspection door 3, a transformer explosion fire protection wall 4 and the like; wherein: the vertical movable fireproof oil baffle 1 assembly consists of an oil baffle foundation A1, an embedded part A2 embedded in the oil baffle foundation A1, a bottom cross beam A3 connected with the embedded part A2 by adopting bolts, a stand column A4 connected with the bottom cross beam A3 by adopting bolts, a top cross beam A5 connected with the stand column A4 by adopting bolts and bayonets, a fireproof oil baffle A6 fixed among the bottom cross beam A3, the stand column A4, the top cross beam A5 and the like; the inclined movable fireproof oil baffle 2 assembly consists of an inclined short cantilever beam B1 fixed with the top beam by bolts, a fireproof oil baffle B2 fixed between the top beam A5 and the inclined short cantilever beam B1 and the like; the movable inspection door 3 assembly consists of a door gap sealing plate C1 welded on the upright post A4, a door hinge C2, a door frame C3, a fireproof oil baffle C4 fixed on the door frame C3, a door lock C5 and other assemblies; the components of the explosion fire protection wall 4 of the transformer are shown in the patent: main transformer explosion fire protection wall, patent number: patent certificate: 6425263;
the utility model has the main effects that the side sleeve transformer can prevent the side sleeve transformer from seriously exploding, the splashing and flowing transformer oil generated after the serious explosion and fire occur can be prevented to the maximum extent, the transformer oil fire is limited in the protection range of the fire extinguishing system, and the large-area spreading fire is prevented; the oil discharge system is combined with an oil discharge system to rapidly discharge transformer oil, so that the fire extinguishing time is shortened, the air pollution is reduced, and the water pollution is reduced;
the foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (2)
1. The oil baffle device of the side sleeve transformer is characterized by comprising four components, namely a vertical movable fireproof oil baffle plate (1), an inclined movable fireproof oil baffle plate (2), a movable inspection door (3) and a transformer explosion fire protection wall (4); the component materials are fireproof materials with oil blocking strength, such as light materials, and the whole device is arranged on one side of a transformer with a side high-voltage sleeve and is 1.5-2.5 m away from the edge of the side sleeve; the vertical movable fireproof oil baffle (1) is arranged by depending on an established transformer firewall or a newly-built transformer explosion fire protection wall (4); the inclined movable fireproof oil baffle plates (2) are arranged in the range of 1.8-2.2 m on two sides of the side sleeve; the movable patrol door (3) is arranged on patrol lanes or fire-fighting lanes on two sides of the transformer, and the movable patrol door (3) is arranged into one or two lanes according to the requirement; the transformer explosion fire protection walls (4) are arranged on two sides of independent or adjacent transformers, the length of each protection wall is consistent with the fire protection wall requirement of the transformer, and the protection walls are provided with splash-proof devices;
wherein: the vertical movable fireproof oil baffle (1) is composed of an oil baffle foundation (A1), an embedded part (A2) embedded in the oil baffle foundation (A1), a stand column (A4) connected with the embedded part (A2) through bolts, a bottom cross beam (A3) connected with the stand column (A4) through bolts, welding or bayonets, a top cross beam (A5) connected with the stand column (A4) through bolts, welding or bayonets, and a fireproof oil baffle (A6) fixed among the bottom cross beam (A3), the stand column (A4) and the top cross beam (A5); the inclined movable fireproof oil baffle (2) assembly consists of an inclined short cantilever beam (B1) fixed with a top beam (A5) by adopting bolts and bayonets and a fireproof oil baffle (B2) fixed between the top beam (A5) and the inclined short cantilever beam (B1); the movable inspection door (3) component consists of a door gap sealing plate (C1) welded on the upright post (A4), a door hinge (C2), a door frame (C3), a fireproof oil baffle plate (C4) fixed on the door frame (C3) and a door lock (C5).
2. The oil baffle device of the side sleeve transformer according to claim 1, wherein an oil storage tank (5) of the transformer is arranged on the outer side of the transformer, an oil baffle area bottom plate (6) is arranged between a foundation (A1) of the oil baffle device and the oil storage tank (5), an oil drain hole (7) is arranged on the tank wall of the oil storage tank, and an oil drain well (8) is arranged at one corner of the oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244643.9A CN108281249B (en) | 2018-03-23 | 2018-03-23 | Side sleeve transformer oil baffle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244643.9A CN108281249B (en) | 2018-03-23 | 2018-03-23 | Side sleeve transformer oil baffle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108281249A CN108281249A (en) | 2018-07-13 |
| CN108281249B true CN108281249B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810244643.9A Active CN108281249B (en) | 2018-03-23 | 2018-03-23 | Side sleeve transformer oil baffle device |
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| CN (1) | CN108281249B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109107065A (en) * | 2018-10-29 | 2019-01-01 | 山东省环能设计院股份有限公司 | A kind of oil-immersed transformer fire separation device and segregation method |
| CN110681091B (en) * | 2019-11-08 | 2024-03-01 | 中国能源建设集团云南省电力设计院有限公司 | Explosion-proof device for transformer sleeve lifting seat |
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| WO2004092543A2 (en) * | 2003-04-11 | 2004-10-28 | Adler, Richard, S. | Blast and anti-ramming walls |
| CN104376971A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Transformer chamber oil-immersed transformer accident fireproof oil storage pit with cover plates |
| CN105989998A (en) * | 2015-03-02 | 2016-10-05 | 江西变电设备有限公司 | High-overload high-temperature-resistant oil-immersed transformer |
| CN106368489A (en) * | 2016-10-19 | 2017-02-01 | 中国能源建设集团云南省电力设计院有限公司 | Explosion fire protection wall for main transformer |
| CN207063121U (en) * | 2017-07-14 | 2018-03-02 | 安徽华电工程咨询设计有限公司 | A kind of emergency oil pond with water seal oil interceptor function |
| CN207800289U (en) * | 2018-03-23 | 2018-08-31 | 中国能源建设集团云南省电力设计院有限公司 | A kind of side casing transformer oil guard |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0906472B1 (en) * | 2008-01-01 | 2020-03-31 | Ctr Manufacturing Industries Limited | SYSTEM AND METHOD TO PREVENT, PROTECT THE OLTC AGAINST FIRE AND / OR TRANSFORMER AGAINST EXPLOSION |
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2018
- 2018-03-23 CN CN201810244643.9A patent/CN108281249B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2215352C2 (en) * | 1995-09-28 | 2003-10-27 | Филип МАНЬЕ | Method and device for preventing explosion and fire on power transformers |
| JP2002540596A (en) * | 1999-03-22 | 2002-11-26 | フィリップ マグニエル | Device to prevent transformer explosion |
| CN2532566Y (en) * | 2002-01-12 | 2003-01-22 | 王延敬 | Explosion-proof fire-extinguishing device for oil-immersed transformer |
| WO2004092543A2 (en) * | 2003-04-11 | 2004-10-28 | Adler, Richard, S. | Blast and anti-ramming walls |
| CN104376971A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Transformer chamber oil-immersed transformer accident fireproof oil storage pit with cover plates |
| CN105989998A (en) * | 2015-03-02 | 2016-10-05 | 江西变电设备有限公司 | High-overload high-temperature-resistant oil-immersed transformer |
| CN106368489A (en) * | 2016-10-19 | 2017-02-01 | 中国能源建设集团云南省电力设计院有限公司 | Explosion fire protection wall for main transformer |
| CN207063121U (en) * | 2017-07-14 | 2018-03-02 | 安徽华电工程咨询设计有限公司 | A kind of emergency oil pond with water seal oil interceptor function |
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| CN108281249A (en) | 2018-07-13 |
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