CN2383189Y - Current guide fire-proof device of oil immersed transformer - Google Patents
Current guide fire-proof device of oil immersed transformer Download PDFInfo
- Publication number
- CN2383189Y CN2383189Y CN 99214535 CN99214535U CN2383189Y CN 2383189 Y CN2383189 Y CN 2383189Y CN 99214535 CN99214535 CN 99214535 CN 99214535 U CN99214535 U CN 99214535U CN 2383189 Y CN2383189 Y CN 2383189Y
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- CN
- China
- Prior art keywords
- oil
- pipe
- transformer
- scatterring
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a current guiding fire-preventing apparatus for an oil immersed transformer, and the upper part of an existing oil immersed transformer is only provided with an oil spraying hole with an explosion preventing isolating piece in order to prevent the fire. A stack of oil storage pits for storing broken stones is downwardly dug on an outer ground platform, and the seat of the transformer is positioned on a broken stone layer. The facility has the disadvantage of being not capable of preventing the fire efficiently. The current guiding fire-preventing apparatus for an oil immersed transformer is characterized in that the position of the oil spraying hole is provided with a current guiding fire-preventing apparatus in the extending way and is also connected with an elastic deformation section and a safety oil pipe. The bottom parts of the oil storage pits downwardly control an oil evacuating groove, and a small quantity of pebbles are stacked in the groove. Both ends of the oil storage pits are respectively provided with an oil evacuating chamber and an oil discharging chamber made into flower basket-shaped reinforcement bars, and the safety oil pipe is connected with the top part of the oil evacuating chamber. The oil discharging chamber is connected with an oil discharging pipe. The current guiding fire-preventing apparatus for an oil immersed transformer can efficiently avoid the contact and combustion of the sprayed high temperature and pressure oil gas with the air to prevent the fire from happening when an accident happens.
Description
The utility model relates to a kind of fire safety device of oil-filled transformer.
At present, the fire safety facility that oil-filled transformer adopted, generally be the nozzle opening that explosion-proof spacer is housed to be set on this transformer top, platform digs the oil-stored hole of the rubble of banking up downwards outside, the transformer base is positioned on the metalling of oil-stored hole, establish an artificial draining valve in its underpart, when oil-filled transformer generation leakage of oil, when transformer inside or outside line local fault, caused transformer oil the temperature inside the box and pressure to raise to some extent, oil storage is splashed in the stone layer that ground flows to oil-stored hole from nozzle opening ejection, thereby play certain fire prevention mitigation effect, yet, when transformer inside or outside line fault even more serious, cause transformer oil vaporization decomposition, oily temperature and oil pressure are sharply risen, from the ejection of transformer nozzle opening is the oily vapour of HTHP, this oily vapour is once contacting with air, and it is on fire to rub, fierce burning, transformation facility is destroyed, cause large-area power-cuts, even, cause casualties and economic massive losses, preventing and avoiding for above-mentioned serious accident, be difficult to be competent at owing to existing fireproofing installation improves inadequately, thereby say that existing fireproofing installation remains in weak point.
The purpose of this utility model aims to provide a kind of drainage firebreak device of oil-filled transformer, this device is by facilities such as safe oil pipe and oleophobic, oil extractions, can will save and the drainage of safe oil pipe safety through strain from the high temperature high pressure oil vapour of nozzle opening ejection effectively apace, avoid the high temperature high pressure oil vapour of ejection just directly to contact, suppress the generation of fire effectively with air.
The purpose of this utility model is achieved in that a kind of oil-filled transformer 1 drainage firebreak device, comprise oil-filled transformer 1, the nozzle opening 2 of explosion-proof spacer 3 is equipped with on transformer 1 top, the artificial draining valve 4 of bottom, the tilting oil-stored hole 6 of the rubble 7 of banking up that outer platform 9 digs downwards, the base 5 of transformer 1 is positioned on the metalling 7 of oil-stored hole 6, the oil exit pipe 8 at oil-stored hole 6 angle places, it is characterized in that extending drainage system at nozzle opening 2 places of transformer 1, this device is to connect diameter strains joint 10 and the safe oil pipe 11 bigger than nozzle opening 2 at nozzle opening 2 places, all adopt the mode that removably connects between nozzle opening 2 and the strain joint 10 and between strain joint 10 and the safe oil pipe 11, safe oil pipe 11 is fixed by support, dig the oil-scatterring channel 14 of a logical oil exit pipe 8 downwards in the oil-stored hole bottom, the an amount of cobble of banking up in the ditch 14, two ends at oil-stored hole 6, by safe oil pipe 11 1 ends one oil-scatterring cavity 13 is set, safe oil pipe 11 connects oil-scatterring cavity 13 tops, the area of passage of this oil-scatterring cavity 13 is bigger than safe oil pipe 11, establishing an oil-discharging cavity 15 near oil exit pipe 8 one ends, the area of passage of this oil-discharging cavity 15 is bigger than the area of passage of oil-scatterring cavity 13, oil-scatterring cavity 13 and oil-discharging cavity 15 are all made gaily decorated basket shape reinforcing bar (pipe) hurdle, on oil-stored hole 6 surfaces, position corresponding to the artificial draining valve 4 of transformer 1, be provided with the artificial oil exit pipe 16 of cover plate, these pipe 16 logical oil-discharging cavities 15.
The diameter of strain joint 10 and safe oil pipe 11 is than big 2 specifications of diameter of nozzle opening 2.
Between nozzle opening 2 and the strain joint 10 and between strain joint 10 and the safe oil pipe 11 all employing ring flange 12 that the coupling specification of withstand voltage sheet metal is housed be connected.
The area of passage of oil-scatterring cavity 13 is bigger 5 times than the area of passage of safe oil pipe 11.
Oil-scatterring channel 14 is than the low 200mm in oil-stored hole 6 bottoms, and the section of oil-scatterring channel 14 is not less than 200 * 300mm
2
Be accompanying drawing below:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the prior art constructions schematic diagram.
Because the fireproofing installation of the oil-filled transformer 1 of prior art is perfect inadequately, when accident takes place, can not prevents and avoid directly contacting with air, thereby just can not prevent the generation of fire effectively from the high temperature high pressure oil vapour that nozzle opening 2 sprays.The utility model extends the drainage firebreak device at the nozzle opening 2 of transformer, entered the strain joint 10 and the safe oil pipe 11 of this device by drainage and enter the oil-scatterring cavity 13 on gaily decorated basket shape reinforcing bar hurdle from the high temperature high pressure oil vapour of nozzle opening 2 ejection, this oil-scatterring cavity 13 is oily streambufs, works to increase oil and flows through flow area.The oil content of oil-scatterring cavity 13 becomes two-way, one the tunnel is the metalling 7 that seepage flow is gone into oil-stored hole 6, one the tunnel then seepage flow go into oil-scatterring channel 14, the oil that seepage flow is come in obtains decrease temperature and pressure here, and and air insulated, oil-discharging cavity 15 by oil-stored hole 6 angles confluxes to oil exit pipe 8 discharges and recovery at last, and the whole process of drainage comes high temperature high pressure oil vapour and air insulated, prevents and avoided the generation of fire and the expansion of accident effectively.
Drainage firebreak device of the present utility model possess skills and equipment simple, easy to operate, do not take up an area, Construction cost is low, the characteristics that flameproof effect is desirable, and brought good social benefit, this practicality The novel supply districts such as 35KV, 110KV, 200KV, 330KV, 500KV that are specially adapted to Big Central Substations, best results.
Claims (6)
1. oil-filled transformer drainage firebreak device, comprise transformer, the nozzle opening of explosion-proof spacer is equipped with on transformer top, the artificial draining valve of bottom, platform digs the tilting oil-stored hole of the rubble of banking up downwards outside, the transformer base is positioned on the metalling of oil-stored hole, the oil exit pipe at oil-stored hole angle place, it is characterized in that extending the drainage firebreak device at the nozzle opening place of transformer, this device comprises: connect diameter strain joint and the safe oil pipe bigger than nozzle opening at the nozzle opening place, all adopt the mode that removably connects between nozzle opening and the strain joint and between strain joint and the safe oil pipe, safe oil pipe is fixed by support, dig the oil-scatterring channel of a logical oil exit pipe downwards in the oil-stored hole bottom, the cobble of banking up in the ditch, two ends at oil-stored hole are provided with an oil-scatterring cavity by safe oil pipe one end, safe oil pipe connects the oil-scatterring cavity top, the area of passage of this oil-scatterring cavity is bigger than safe oil pipe, establishing an oil-discharging cavity near oil exit pipe one end, the area of passage of this oil-discharging cavity is bigger than oil-scatterring cavity, oil-scatterring cavity and oil-discharging cavity are all made gaily decorated basket shape reinforcing bar (pipe) hurdle, on the oil storage pitted surface, position corresponding to the artificial draining valve of transformer, if the artificial oil exit pipe of a plate with cover, the logical oil-discharging cavity of this pipe.
2. oil-filled transformer drainage firebreak device according to claim 1, the diameter that it is characterized in that strain joint and safe oil pipe are all than big 2 specifications of diameter of nozzle opening.
3. oil-filled transformer drainage firebreak device according to claim 1, it is characterized in that between nozzle opening and the strain joint and strain joint and safe oil pipe between all adopt specification that withstand voltage sheet metal is housed to mate ring flange be connected.
4. oil-filled transformer drainage firebreak device according to claim 2 is characterized in that said strain joint means the ripple flexible metallic hose.
5. oil-filled transformer drainage firebreak device according to claim 1 is characterized in that the area of passage of oil-scatterring cavity is bigger 5 times than the area of passage of safe oil pipe.
6. oil-filled transformer drainage firebreak device according to claim 1 is characterized in that oil-scatterring channel than the low 200mm of oil-stored hole, and the section of oil-scatterring channel is not less than 200 * 300mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214535 CN2383189Y (en) | 1999-07-02 | 1999-07-02 | Current guide fire-proof device of oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214535 CN2383189Y (en) | 1999-07-02 | 1999-07-02 | Current guide fire-proof device of oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2383189Y true CN2383189Y (en) | 2000-06-14 |
Family
ID=34006685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99214535 Expired - Fee Related CN2383189Y (en) | 1999-07-02 | 1999-07-02 | Current guide fire-proof device of oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2383189Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322071A (en) * | 2011-06-29 | 2012-01-18 | 浙江省电力设计院 | Universal base structure of main transformer of 220kV substation |
| 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 |
| CN106405290A (en) * | 2016-09-09 | 2017-02-15 | 中国电力科学研究院 | Combustion test apparatus for oil-immersed power transformers |
| CN112494852A (en) * | 2020-06-19 | 2021-03-16 | 国网安徽省电力有限公司电力科学研究院 | Overhead fire insulation method and device for preventing extra-high voltage converter transformer fire from expanding |
-
1999
- 1999-07-02 CN CN 99214535 patent/CN2383189Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322071A (en) * | 2011-06-29 | 2012-01-18 | 浙江省电力设计院 | Universal base structure of main transformer of 220kV substation |
| CN102322071B (en) * | 2011-06-29 | 2013-09-18 | 浙江省电力设计院 | Universal base structure of main transformer of 220kV substation |
| 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 |
| CN106405290A (en) * | 2016-09-09 | 2017-02-15 | 中国电力科学研究院 | Combustion test apparatus for oil-immersed power transformers |
| CN112494852A (en) * | 2020-06-19 | 2021-03-16 | 国网安徽省电力有限公司电力科学研究院 | Overhead fire insulation method and device for preventing extra-high voltage converter transformer fire from expanding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |