CN204193357U - Transformer is with filling nitrogen extinguishing device - Google Patents
Transformer is with filling nitrogen extinguishing device Download PDFInfo
- Publication number
- CN204193357U CN204193357U CN201420490200.5U CN201420490200U CN204193357U CN 204193357 U CN204193357 U CN 204193357U CN 201420490200 U CN201420490200 U CN 201420490200U CN 204193357 U CN204193357 U CN 204193357U
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- CN
- China
- Prior art keywords
- transformer
- extinguishing device
- valve
- drain line
- nitrogen
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- 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
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 53
- 238000007689 inspection Methods 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000000740 bleeding effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of transformer with filling nitrogen extinguishing device, belonging to transformer extinguishing device technical field.It comprises nitrogen storage device (1), described nitrogen storage device (1) is connected with described transformer (3) by gas exhaust piping (2), and drain line (4), described drain line (4) one end is communicated in the oil drain out (5) of described transformer (3), the other end is communicated with oil sump (6), described drain line (4) is provided with draining valve (7), described drain line (4) is also provided with inspection switch valve (8), described inspection switch valve (8) is positioned between described draining valve (7) and described oil drain out (5).This transformer with fill nitrogen extinguishing device solve existing fill nitrogen extinguishing device test need the technical problem that stoppage in transit main transformer, work flow are loaded down with trivial details, operability is not strong.What be specially adapted to need cycled recondition fills nitrogen extinguishing device.
Description
Technical field
The utility model belongs to main transformer fire-extinguishing apparatus field, particularly a kind of applicable 220kV and above main transformer fill nitrogen extinguishing device.
Background technology
At present, oil immersed type main transformer usually adopts oil extraction to fill nitrogen extinguishing device and realizes fire extinguishing as fire fighting device.According to National Energy Board about " preventing power generation accident 25 important requirements ", adopt the fault spread filled when nitrogen extinguishing device needs emphasis to prevent transformer from catching fire as the large-scale main transformer of 220kV of fire fighting device, should overhaul in conjunction with routine test, regularly extinguishing device safeguarded and check, in case error action of device, tripping.
Current, oil extraction is filled nitrogen extinguishing device and is mainly adopted version disclosed in CN202211949U, it gas exhaust piping comprising nitrogen storage device and be connected between nitrogen storage device and main transformer nitrogen inlet, also comprise drain line, drain line is arranged the draining valve controlling drain line break-make.To above-mentioned fill nitrogen extinguishing device carry out checking experiment time, need synchronously to carry out in conjunction with main transformer interruption maintenance, under main transformer shut down condition, close drain line be connected valve with main transformer body top oil drain out, remove inflated with nitrogen bottle toggles control lines; Will cause in drain line during device experiment action and let out loss under insulating oil, need after checking experiment to carry out makeup oil and bleeding to main transformer, workflow is loaded down with trivial details, and actual operability is not strong.
Summary of the invention
For this reason, technical problem to be solved in the utility model be existing fill nitrogen extinguishing device test need the technical problem that stoppage in transit main transformer, work flow are loaded down with trivial details, operability is not strong, there is provided one can carry out the whole series under main transformer running status and fill the test of nitrogen extinguishing device analog signal, what do not need afterwards to carry out makeup oil and bleeding to main transformer fills nitrogen extinguishing device.
For solving the problems of the technologies described above, a kind of transformer of the present utility model is with filling nitrogen extinguishing device, it comprises nitrogen storage device, described nitrogen storage device is connected with described transformer by gas exhaust piping, and drain line, described drain line one end is communicated in the oil drain out of described transformer, the other end is communicated with oil sump, described drain line is provided with draining valve, it is characterized in that: described drain line is also provided with inspection switch valve, described inspection switch valve is positioned between described draining valve and described oil drain out.
Described inspection switch valve is Hand-operated butterfly valve.
Described inspection switch valve is positioned on the drain line on the upside of described draining valve, at a distance of 15-30cm between described inspection switch valve and described draining valve.
Described gas exhaust piping is extremely disposed with nitrogen pressure-reducing valve, nitrogen relief valve and mechanical chain valve between described transformer along described nitrogen storage device.
Be provided with oil exit pipe observation window being positioned on the drain line below described draining valve.
Technique scheme of the present utility model has the following advantages compared to existing technology:
Transformer of the present utility model installs an inspection switch valve with filling nitrogen extinguishing device on drain line.Fill inspection switch valve when nitrogen extinguishing device is in activestandby status to be held open, after control device receives fire detector and grave gas dual-alarm signal simultaneously, driving draining valve is opened formation drain path by control device, upper strata high temperature, incendive insulating oil in transformer body are got rid of rapidly, release pressure; When according to cycle request analog signal inspection fill nitrogen extinguishing device can action message time, switch valve will be verified close, realize draining valve and top drain line effectively to close and isolate, thus stopped a large amount of insulating oil and leak, and then avoid loaded down with trivial details power failure repairing bleeding.This extinguishing device can under main transformer keeps charged running status, can requiring that nitrogen extinguishing device is filled in analog signal inspection according to the code test period action message, stop the inevitable insulating oil loss of checking experiment in the past, do not need after test to carry out makeup oil and bleeding to main transformer, while guaranteeing main transformer safe and stable operation, realize cost efficiency.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is existing connection diagram of filling nitrogen extinguishing device and main transformer;
Fig. 2 of the present utility modelly fills nitrogen extinguishing device structural representation.
In figure, Reference numeral is expressed as: 1-nitrogen storage device, 2-gas exhaust piping, 3-transformer, 4-drain line, 5-oil drain out, 6-oil sump, 7-draining valve, 8-inspection switch valve, 9-nitrogen pressure-reducing valve, 10-nitrogen relief valve, 11-mechanical chain valve, 12-oil exit pipe observation window.
Detailed description of the invention
Fig. 1 is that transformer of the present utility model is with filling nitrogen extinguishing device, it comprises nitrogen storage device 1, described nitrogen storage device 1 is connected with transformer 3 by gas exhaust piping 2, and drain line 4, described drain line 4 one end is communicated in the oil drain out 5 of described transformer 3, and the other end is communicated with oil sump 6, and described drain line 4 is provided with draining valve 7, described drain line 4 is also provided with inspection switch valve 8, and described inspection switch valve 8 is between described draining valve 7 and described oil drain out 5.Fill inspection switch valve 8 when nitrogen extinguishing device is in activestandby status be held open when described, after control device receives fire detector and grave gas dual-alarm signal simultaneously, driving draining valve 7 is opened formation drain path by control device, upper strata high temperature, incendive insulating oil in transformer body are got rid of rapidly, release pressure; When according to cycle request analog signal inspection fill nitrogen extinguishing device can action message time, verification switch valve 8 cuts out, realize draining valve 7 effectively to close with top drain line and isolate, thus stopped a large amount of insulating oil and leak, and then avoid loaded down with trivial details power failure repairing bleeding.
In order to not affect the integral layout of fire hydrant cabinet, take into account ease-to-operate, Hand-operated butterfly valve elected as by described inspection switch valve 8, and easy access personnel cycled recondition is safeguarded.
Described inspection switch valve 8 is positioned on the drain line 4 on the upside of described draining valve 7, at a distance of 15-30cm between described inspection switch valve 8 and described draining valve 7, in present embodiment, at a distance of 20cm between described inspection switch valve 8 and described draining valve 7.
In extinguishing device of the present utility model, described gas exhaust piping 2 is disposed with nitrogen pressure-reducing valve 9 along described nitrogen storage device 1 between described transformer 3, nitrogen relief valve 10 and mechanical chain valve 11.Be provided with oil exit pipe observation window 12 being positioned on the drain line 4 below described draining valve 7.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (5)
1. a transformer is with filling nitrogen extinguishing device, it comprises nitrogen storage device (1), described nitrogen storage device (1) is connected with described transformer (3) by gas exhaust piping (2), and drain line (4), described drain line (4) one end is communicated in the oil drain out (5) of described transformer (3), the other end is communicated with oil sump (6), described drain line (4) is provided with draining valve (7), it is characterized in that: described drain line (4) is also provided with inspection switch valve (8), described inspection switch valve (8) is positioned between described draining valve (7) and described oil drain out (5).
2. a kind of transformer according to claim 1 is with filling nitrogen extinguishing device, it is characterized in that: described inspection switch valve (8) is Hand-operated butterfly valve.
3. a kind of transformer according to claim 1 is with filling nitrogen extinguishing device, it is characterized in that: described inspection switch valve (8) is positioned on the drain line (4) of described draining valve (7) upside, at a distance of 15-30cm between described inspection switch valve (8) and described draining valve (7).
4. a kind of transformer according to claim 1 is with filling nitrogen extinguishing device, it is characterized in that: described gas exhaust piping (2) is extremely disposed with nitrogen pressure-reducing valve (9), nitrogen relief valve (10) and mechanical chain valve (11) between described transformer (3) along described nitrogen storage device (1).
5. a kind of transformer according to claim 1 is with filling nitrogen extinguishing device, it is characterized in that: on the drain line (4) being positioned at described draining valve (7) below, be provided with oil exit pipe observation window (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490200.5U CN204193357U (en) | 2014-08-28 | 2014-08-28 | Transformer is with filling nitrogen extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490200.5U CN204193357U (en) | 2014-08-28 | 2014-08-28 | Transformer is with filling nitrogen extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204193357U true CN204193357U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420490200.5U Expired - Fee Related CN204193357U (en) | 2014-08-28 | 2014-08-28 | Transformer is with filling nitrogen extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204193357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005851A (en) * | 2019-04-26 | 2019-07-12 | 国网宁夏电力有限公司电力科学研究院 | A kind of Transformer oil drain valve, transformer |
-
2014
- 2014-08-28 CN CN201420490200.5U patent/CN204193357U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005851A (en) * | 2019-04-26 | 2019-07-12 | 国网宁夏电力有限公司电力科学研究院 | A kind of Transformer oil drain valve, transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20180828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |