CN201789220U - Large-sized transformer vacuum oil extraction device allowing accessory replacement without oil drainage - Google Patents
Large-sized transformer vacuum oil extraction device allowing accessory replacement without oil drainage Download PDFInfo
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- CN201789220U CN201789220U CN201020296494XU CN201020296494U CN201789220U CN 201789220 U CN201789220 U CN 201789220U CN 201020296494X U CN201020296494X U CN 201020296494XU CN 201020296494 U CN201020296494 U CN 201020296494U CN 201789220 U CN201789220 U CN 201789220U
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- oil
- vacuum
- oil extraction
- transformer
- extraction device
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Abstract
The utility model discloses a large-sized transformer vacuum oil extraction device allowing accessory replacement without oil drainage, which comprises a vacuum pump. The vacuum pump is communicated with an oil conservator of a large-sized transformer through a vacuum pipe, and a transparent oil pointer pipe is mounted on an oil sample valve at the bottom of the large-sized transformer. The large-sized transformer vacuum oil extraction device leads the inside of the oil conservator to be in a vacuum state by the aid of the vacuum pump to balance pressure of insulating oil inside the whole transformer, avoids or lessens flow of the insulating oil out of a transformer body, and facilitates rapid replacement of corresponding accessories.
Description
One. technical field: the utility model relates to a kind of attending device of high-power transformer, particularly relates to the vacuum oil extraction plant that annex is changed in a kind of not oil extraction of high-power transformer.
Two. background technology: along with the sustained and rapid development of national economy, China's power industry presents the trend of sustained and rapid development, the application of various high-power transformers is more and more, and in use, local damage can appear in high-power transformer, need to change corresponding accessory, common way is: according to the overhaul installation procedure, discharging transformer body insulating oil is changed corresponding accessory then earlier, this both waste of manpower, material resources influence the index of system reliability again.
Three. the content of utility model:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of simple in structure, vacuum oil extraction plant that annex is changed in not oil extraction of high-power transformer that efficient is high and easy to operate is provided.
The technical solution of the utility model is: the vacuum oil extraction plant of annex is changed in a kind of not oil extraction of high-power transformer, contains vacuum pump, and described vacuum pump is communicated with the conservator of high-power transformer by vacuum tube.
On the oil sample valve of described high-power transformer bottom transparent oil ga(u)ge pipe is installed.
The beneficial effects of the utility model are:
1, the utility model has not only reduced maintenance workload, has shortened interruption duration, and owing to does not expose the iron core of transformer, the availability coefficient and the fail safe that improve transformer equipment.
2, the utility model employing vacuum pump makes and is in vacuum state in the conservator, and then the pressure of the interior insulating oil of the whole high-power transformer of balance, makes insulating oil not or less flow out of the high-power transformer body, is convenient to change fast corresponding accessory.
3, the utility model is provided with the oil ga(u)ge pipe on high-power transformer, can show the plan position approach of insulating oil intuitively, is convenient to control better vacuum degree, avoids vacuum degree too high or too low.
4, the utility model is simple in structure, efficient is high and easy to operate, and it is applied widely, has good economic benefit after the popularization.
Four. description of drawings:
Fig. 1 is a structural representation of the present utility model.
Five. embodiment:
Embodiment: referring to Fig. 1, among the figure, 1-high-power transformer, 2-conservator, the transparent oil ga(u)ge pipe of 3-, 4-oil sample valve, 5-vacuum pump.
The vacuum oil extraction plant that annex is changed in not oil extraction of high-power transformer contains vacuum pump 5, and vacuum pump 5 is communicated with the conservator 2 of high-power transformer 1 by vacuum tube.Transparent oil ga(u)ge pipe 3 is installed on the oil sample valve 4 of high-power transformer 1 bottom.
In use, if damaging appears in the A place annex of high-power transformer 1, if this annex is directly changed in not oil extraction, the insulating oil in the high-power transformer 1 will flow out from this.Install and startup vacuum pump 5, make in the conservator 2 and vacuum occurs, regulate vacuum degree, make the pressure of conservator 2 upper air and pressure sum that insulating oil acts on the A place equal extraneous atmospheric pressure, the inside and outside pressure in A place this moment equates, insulating oil just can not outflow, and so just can change the corresponding accessory at A place.
Because actual field situation more complicated, not necessarily standard value etc. of error, atmospheric pressure appears such as vacuum meter, can utilize the principle of communicating pipe, transparent oil ga(u)ge pipe 3 is installed on oil sample valve 4,, is opened oil sample valve 4 when vacuum degree during near calculated value, observe the oil level of transparent oil ga(u)ge pipe 3, illustrate that when reaching the relevant position vacuum degree is suitable, stop vacuum pump 5 this moment, change annex and get final product.
Maintenance finishes, and closes oil sample valve 4, removes vacuum pump 5 and vacuum tube, the transparent oil ga(u)ge pipe 3 of dismounting, inflates in air bag, and is fuel-displaced up to air relief cock, with the air of emptying conservator 2 inside.
Claims (2)
1. the vacuum oil extraction plant of not oil extraction of a high-power transformer replacing annex contains vacuum pump, and it is characterized in that: described vacuum pump is communicated with the conservator of high-power transformer by vacuum tube.
2. the vacuum oil extraction plant of annex is changed in not oil extraction of high-power transformer according to claim 1, it is characterized in that: on the oil sample valve of described high-power transformer bottom transparent oil ga(u)ge pipe is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020296494XU CN201789220U (en) | 2010-08-19 | 2010-08-19 | Large-sized transformer vacuum oil extraction device allowing accessory replacement without oil drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020296494XU CN201789220U (en) | 2010-08-19 | 2010-08-19 | Large-sized transformer vacuum oil extraction device allowing accessory replacement without oil drainage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789220U true CN201789220U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020296494XU Expired - Fee Related CN201789220U (en) | 2010-08-19 | 2010-08-19 | Large-sized transformer vacuum oil extraction device allowing accessory replacement without oil drainage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789220U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680828A (en) * | 2013-11-15 | 2014-03-26 | 国网山东省电力公司青岛供电公司 | Transformer oil transfer system |
| CN103996985A (en) * | 2014-06-11 | 2014-08-20 | 云南电网公司昆明供电局 | Method for overhauling oil leakage existing on middle portion and lower portion of large transformer by means of pressure intensity balance |
-
2010
- 2010-08-19 CN CN201020296494XU patent/CN201789220U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680828A (en) * | 2013-11-15 | 2014-03-26 | 国网山东省电力公司青岛供电公司 | Transformer oil transfer system |
| CN103680828B (en) * | 2013-11-15 | 2015-12-16 | 国网山东省电力公司青岛供电公司 | Transformer oil transfer system |
| CN103996985A (en) * | 2014-06-11 | 2014-08-20 | 云南电网公司昆明供电局 | Method for overhauling oil leakage existing on middle portion and lower portion of large transformer by means of pressure intensity balance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20120819 |