CN203406141U - Vacuum oil injection device of combined cooler of locomotive open main transformer - Google Patents
Vacuum oil injection device of combined cooler of locomotive open main transformer Download PDFInfo
- Publication number
- CN203406141U CN203406141U CN201320506093.6U CN201320506093U CN203406141U CN 203406141 U CN203406141 U CN 203406141U CN 201320506093 U CN201320506093 U CN 201320506093U CN 203406141 U CN203406141 U CN 203406141U
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- valve
- main transformer
- pipeline
- oil
- auxiliary tank
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Abstract
The utility model discloses a vacuum oil injection device of a combined cooler of a locomotive open main transformer. The main transformer 16 is connected with a pipeline and a valve 10 through an oil pump, a non-oil pump is connected with a pipeline and a valve 13 to be connected with the combined cooler 8, an auxiliary tank 7 is higher than the main transformer 16 and the combined cooler 8 in position, a lower pipeline valve 9 of the auxiliary tank 7 is connected to an oil pump connecting pipeline located between the combined cooler 8 and the main transformer 16, a pumping pipeline of an vacuum pump 4 is connected to an upper pipeline valve 1 of the auxiliary tank 7, an oil injection pipeline of an oil injection pump is connected to an oil injection port valve 17 of the transformer 16, a nitrogen injection pipeline and an upper pipeline valve 3 of the nitrogen injection pipeline, the upper pipeline valve 3 of the nitrogen injection pipeline is connected to the auxiliary tank 7, and the main transformer 16 and the combined cooler 8 are provided with a venting plug 18 and a venting plug 19 respectively. While oil injection can be performed on the combined cooler, vacuumizing operation can be performed continuously, vacuum degree in a whole system is guaranteed, and therefore oil insulating strength of the transformer is improved, and faults of action of a buchholz relay is thoroughly eradicated.
Description
Technical field
The utility model relates to a kind of locomotive open type main transformer composite cooler vacuum oiling device, belongs to railway locomotive technical field.
Background technology
For guaranteeing that electric locomotive open type main transformer has enough dielectric strengths, need to make the vacuum degree of transformer inside reach below 50Pa, just to its oiling.The common practice of prior art is: the next pipe valve that is positioned at the auxiliary tank of eminence (higher than composite cooler and transformer) is connected on the oil pump connecting pipeline between composite cooler and main transformer, and vacuum pump aspiration is connected to the upper pipeline of auxiliary tank; Open each valve member on vacuum pump and pipeline, system is evacuated to below 50Pa; Then close vacuum pump and pipeline valve member, pull down vacuum tube; Again the oil fuel tube of filling pump is connected to the fuel feeding valve of auxiliary tank, opens filling pump and fuel feeding valve, auxiliary tank is filled with to oil; Close filling pump and fuel feeding valve; Open the next pipe valve of auxiliary tank and note nitrogen pressurization from the upper pipeline of auxiliary tank, adopt U-shaped pipe principle, rely on difference in height (auxiliary tank height above sea level is higher than composite cooler) and pressure differential, the pipeline that makes transformer oil flow into composite cooler and be connected with transformer.Adopt this scheme, due to composite cooler and the oil circuit that is connected with transformer thereof, particularly composite cooler internal oil passages is elongated, and inner being difficult to of pipeline guarantees air emptying, and air can flow in system along with transformer oil.If the air in pipeline enters in transformer with transformer oil circulation, because of the dielectric constant of the air dielectric constant lower than transformer oil, the position of originally being insulated by transformer oil is substituted by air, cause insulation distance to cause not electric discharge.The interior contained humidity of air can affect the dielectric strength of transformer oil simultaneously, and transformer oil puncture voltage is reduced, and causes the electric discharge of transformer inside.Locomotive is after operation a period of time, because pipeline contains gas, in cyclic process, gas is saved bit by bit at transformer box cover position, very easily cause the conspicuous actuating of relay of cloth and cause that locomotive main is disconnected cannot close a floodgate, locomotive can not load, and only has after the conspicuous relay venting of cloth and just can continue to move, and this fault can not once be eliminated at the scene, after need repeatedly exitting, just alleviate gradually.
Utility model content
The purpose of this utility model overcomes the deficiency of above-mentioned prior art exactly, and a kind of locomotive open type main transformer composite cooler vacuum oiling device is provided, and the air in oil circuit is discharged completely, guarantees the dielectric strength of transformer inside.
The purpose of this utility model is achieved in that a kind of locomotive open type main transformer composite cooler vacuum oiling device, comprise main transformer, composite cooler, auxiliary tank, main transformer is by oil pump connecting line and valve, non-oil pump connecting line and valve are connected with composite cooler, it is characterized in that auxiliary tank position is higher than main transformer and composite cooler, the next pipeline of auxiliary tank is connected to the valve on the oil pump connecting line between composite cooler and main transformer, the aspiration of vacuum pump is connected to the valve of the upper pipeline of auxiliary tank, filling pump oil filling pipeline is connected to transformer pouring hydraulic fluid port valve, nitrogen gas injection pipeline is connected to the valve of the upper pipeline of auxiliary tank, main transformer and composite cooler are respectively equipped with venting plug.
Scheme of the present utility model, when being transformer and composite cooler oiling, sustainablely vacuumize operation, after finishing, oiling notes the exhaust operation of nitrogen operation and composite cooler and transformer, guaranteed the vacuum degree in total system, thereby improved transformer oil dielectric strength, stopped the fault of the conspicuous actuating of relay of cloth, guaranteed the normal operation of transformer.
Accompanying drawing explanation
Fig. 1 is the locomotive open type main transformer composite cooler vacuum oiling device principle schematic of the utility model embodiment.
In figure, be labeled as: 1-vacuum draw pipeline valve, 2-air gauge, 3-notes nitrogen pipe valve, 4-vacuum pump, 5-filling pump, 6-nitrogen cylinder, 7-auxiliary tank, 8-composite cooler, the next pipe valve of 9-auxiliary tank, 10-transformer and composite cooler oil pump connecting line valve, 11-transformer oil pump, 12-transformer oil pump valve, the non-oil pump connecting line of 13-transformer and composite cooler valve, 14-oil conservator valve, 15-oil conservator, 16-transformer, 17-oil filling pipeline valve, 18-transformer air relief cock, 19-composite cooler air relief cock.
Embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, the locomotive open type main transformer composite cooler vacuum oiling device of the present embodiment, comprise main transformer 16, composite cooler 8, auxiliary tank 7, main transformer 16 is by oil pump connecting line and valve 10, non-oil pump connecting line and valve 13 are connected with composite cooler 8, it is characterized in that auxiliary tank 7 positions are higher than main transformer 16 and composite cooler 8, the next pipe valve 9 of auxiliary tank is connected on the oil pump connecting line between composite cooler 8 and main transformer 16, the aspiration of vacuum pump 4 is connected to the upper pipe valve 1 of auxiliary tank 7, filling pump 5 oil filling pipelines are connected to transformer 16 pouring orifice valves 17, nitrogen cylinder 6 gas injection pipelines are connected to the upper pipe valve 3 of auxiliary tank 7.
Take the following step to carry out oiling:
A. auxiliary tank 7 positions are higher than main transformer 16 and composite cooler 8, and the next pipe valve 9 of auxiliary tank 7 is connected on the oil pump connecting line between composite cooler 8 and main transformer 16, and the aspiration of vacuum pump 4 is connected to the upper pipe valve 1 of auxiliary tank 7;
B. turn-off the valve 10,13 on main transformer 16 and 8 two connecting lines of composite cooler;
E. open main transformer 16 and the non-oil pump connecting line of composite cooler 8 valve 10 and oil filling pipeline valve 17, oil pump is to the slow oiling of main transformer 16, and vacuum pump 4 works on simultaneously;
F. oil level rises to after auxiliary tank 7, and filling pump 5 quits work;
G. close successively after oil filling pipeline valve 17, the upper pipe valve 1 of auxiliary tank 7, vacuum pump 4 quits work;
H. nitrogen cylinder 6 gas injection pipelines are connected to the upper pipe valve 3 of auxiliary tank 7, open gas injection pipe valve 3, while being 0.05Mpa to composite cooler 8 and main transformer 16 notes nitrogen to pressure only;
I. check auxiliary tank 7 oil levels, confirm whether the oil in tank has residue: if do not have, from gas injection pipe valve 3, discharge nitrogen, then return to step B; Otherwise enter next step;
J. open air relief cock 18,19 exhausts of composite cooler 8 and main transformer 16, after having oil spill to go out, stop;
K. by gas injection pipe valve 3, nitrogen pressure is discharged, turn-off the next pipe valve 9 of auxiliary tank 7, oiling finishes.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (1)
1. a locomotive open type main transformer composite cooler vacuum oiling device, comprise main transformer, composite cooler, auxiliary tank, main transformer is by oil pump connecting line and valve, non-oil pump connecting line and valve are connected with composite cooler, it is characterized in that auxiliary tank position is higher than main transformer and composite cooler, the next pipe valve of auxiliary tank is connected on the oil pump connecting line between composite cooler and main transformer, the aspiration of vacuum pump is connected to the upper pipe valve of auxiliary tank, filling pump oil filling pipeline is connected to transformer pouring hydraulic fluid port valve, nitrogen gas injection pipeline is connected to the upper pipe valve of auxiliary tank, main transformer and composite cooler are respectively equipped with venting plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506093.6U CN203406141U (en) | 2013-08-16 | 2013-08-16 | Vacuum oil injection device of combined cooler of locomotive open main transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506093.6U CN203406141U (en) | 2013-08-16 | 2013-08-16 | Vacuum oil injection device of combined cooler of locomotive open main transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406141U true CN203406141U (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320506093.6U Expired - Fee Related CN203406141U (en) | 2013-08-16 | 2013-08-16 | Vacuum oil injection device of combined cooler of locomotive open main transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192462A (en) * | 2018-10-09 | 2019-01-11 | 中车株洲电机有限公司 | A kind of oiling transformer equipment and operating method |
-
2013
- 2013-08-16 CN CN201320506093.6U patent/CN203406141U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192462A (en) * | 2018-10-09 | 2019-01-11 | 中车株洲电机有限公司 | A kind of oiling transformer equipment and operating method |
| CN109192462B (en) * | 2018-10-09 | 2021-09-14 | 中车株洲电机有限公司 | Transformer oil injection equipment and operation method |
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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: 20140122 Termination date: 20190816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |