CN201526431U - Vacuum pump oil return preventing device used for transformer maintenance - Google Patents
Vacuum pump oil return preventing device used for transformer maintenance Download PDFInfo
- Publication number
- CN201526431U CN201526431U CN2009201794347U CN200920179434U CN201526431U CN 201526431 U CN201526431 U CN 201526431U CN 2009201794347 U CN2009201794347 U CN 2009201794347U CN 200920179434 U CN200920179434 U CN 200920179434U CN 201526431 U CN201526431 U CN 201526431U
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- Prior art keywords
- vacuum pump
- oil
- vacuum
- sump tank
- collecting tank
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Abstract
The utility model relates to a vacuum pump oil return preventing device used for transformer maintenance, wherein an oil collecting tank is arranged on an air inlet pipe, the air inlet pipe is communicated with the oil collecting tank at the lower part of a side wall of the oil collecting tank and is connected with a vacuum pump by a flange, an air outlet pipe is arranged at the upper end face or the upper part of the side wall of the oil collecting tank, and the air outlet pipe is connected with a vacuum extractor by a valve. An oil drain pipe and a valve are arranged on the lower end face of the oil collecting tank. The side wall of the oil collecting tank is also provided with an observation window. The vacuum pump oil return preventing device effectively solves the problem of vacuum oil backflow in the vacuum pump which is caused by sudden power failure or delayed turn-off of an air return valve due to failure of the vacuum pump in the vacuumizing process and the vacuum keeping process of the vacuum pump, and avoids the phenomena of pollution to extracted equipment, reduction of insulation and influence on the service life, which are caused by that vacuum oil enters the extracted equipment. Simultaneously, the vacuum pump oil return preventing device greatly alleviates the hardship degree of workers.
Description
Technical field
The utility model relates to a kind of transformer maintenance and prevents oil return apparatus with vacuum pump.
Background technique
The fast development of national economy, electric power are the bases.In order to satisfy society to electricity needs, power grid construction has also become the most important thing, vacuum pump is requisite machinery in power construction, for example: the installation of the large-scale main transformer of electric substation and maintenance, the service work of the installation of large-scale GIS equipment and maintenance and SF6 switch, mutual inductor all be unable to do without vacuum pump.
At the construction field (site), in order to ensure that electrical equipment is clean, drying often needs it is vacuumized processing, and exigent degree of vacuum, and keep for a long time, generally be not less than 24 hours, be difficult to guarantee construction power supply sudden power or do not go wrong setting up degree of vacuum and maintenance stage at the vacuum pump of big load operation state.When the above-mentioned situation of unexpected generation, be connected as a single entity because of taking out equipment and vacuum pump and atmosphere, atmospheric pressure is far longer than is taken out device interior pressure, make the air in the atmosphere be taken out device interior by the vacuum pump inflow, thereby make the vacuum oil in the vacuum pump be taken out equipment, cause electrical equipment to pollute with the air-flow inflow.The vacuum treated purpose of electrical equipment is to clean electrical equipment, pollutes so on the contrary, and the suitable trouble of cleaning, even cause immeasurable loss.
The model utility content
The purpose of this utility model provides a kind of preventing and in the process of setting up degree of vacuum and maintenance vacuum accident takes place when transformer from keeping in repair, vacuum pump quits work suddenly and causes vacuum oil to reflux, and enters the transformer maintenance that is polluted by the equipment of taking out and prevents oil return apparatus with vacuum pump.
For achieving the above object, the technical solution adopted in the utility model is: a kind of transformer maintenance is prevented oil return apparatus with vacuum pump, comprise the suction tude that is connected with the equipment of being evacuated with vacuum pump, on the pipeline of described suction tude, be provided with oil sump tank, suction tude is communicated with oil sump tank in a lower sidewall of oil sump tank, suction tude is connected with vacuum pump by flange, is provided with steam outlet pipe in the upper-end surface or the side wall upper part of oil sump tank, and steam outlet pipe is connected with the equipment of being evacuated by valve.
Above-mentioned transformer maintenance is prevented oil return apparatus with vacuum pump, and the lower end surface of described oil sump tank is provided with drain line, and drain line is provided with oil discharging valve.
Above-mentioned transformer maintenance also is provided with the viewing window that is used for oil mass in the inspection box with the anti-oil return apparatus of vacuum pump on the sidewall of described oil sump tank.
Above-mentioned transformer maintenance is prevented oil return apparatus with vacuum pump, and the volume of described oil sump tank is greater than the volume of vacuum oil in the vacuum pump.
The utility model is owing to adopt technique scheme, has following beneficial effect: adopt and on the pipeline that vacuumizes, be provided with oil sump tank, can solve vacuum pump effectively when vacuumizing and in the process of maintenance vacuum, because of power failure or vacuum pump failure have little time to turn off the problem that return-air valve causes the vacuum oil in the vacuum pump to reflux suddenly, avoid vacuum oil to enter and taken out equipment, cause and taken out equipment pollution, cause insulation to reduce, influence working life.Simultaneously, alleviated staff's arduous degree greatly.
Adopt the lower end surface of oil sump tank to be provided with drain line, drain line is provided with oil discharging valve.In case the vacuum oil in the vacuum pump is back in the oil sump tank because of accident, can in time bleed off vacuum oil by oil discharging valve.
Also be provided with viewing window on the sidewall of employing oil sump tank.Timely oil mass in the inspection box.
Adopt the volume of the volume of oil sump tank greater than vacuum oil in the vacuum pump.Avoid vacuum oil in the vacuum pump all to be back in the oil sump tank and enter the equipment of being evacuated, pollute accident.
The utility model is simple in structure, and is easy for installation, not only can be installed in for a long time on the vacuum pump, can also be used with other vacuum pump.Improved the Security of work on the spot greatly.
Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following specification, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Description of drawings
Fig. 1 is that the utility model master looks schematic representation
Fig. 2 is that the utility model simultaneously is evacuated embodiment's schematic representation that equipment is connected with a plurality of
Mark among the figure: 1-oil sump tank 2-suction tude 3-flange 4-oil discharging valve 5-drain line 6-steam outlet pipe 7-valve 8-viewing window
Embodiment
As shown in Figure 1 and Figure 2, a kind of transformer maintenance is prevented oil return apparatus with vacuum pump, comprise the suction tude 2 that is connected with the equipment of being evacuated with vacuum pump, on the pipeline of described suction tude, be provided with oil sump tank 1, suction tude is communicated with oil sump tank in a lower sidewall of oil sump tank, suction tude is connected with vacuum pump by flange 3, is provided with steam outlet pipe 6 in the upper-end surface or the side wall upper part of oil sump tank, and steam outlet pipe is connected with the equipment of being evacuated by valve 7.
The lower end surface of described oil sump tank is provided with drain line 5, and drain line is provided with oil discharging valve 4.In case the vacuum oil in the vacuum pump is back in the oil sump tank 1 because of accident, can in time bleed off vacuum oil by oil discharging valve 4.
Also be provided with the viewing window 8 that is used for oil mass in the inspection box on the sidewall of described oil sump tank.
The volume of described oil sump tank is greater than the volume of vacuum oil in the vacuum pump.Avoid vacuum oil in the vacuum pump all to be back in the oil sump tank 1 and enter the equipment of being evacuated, pollute accident.
As shown in Figure 2, when vacuum pump of needs vacuumizes the several air chambers of electrical equipment simultaneously, can set up the quantity of the condition increase steam outlet pipe 6 of limiting vacuum, realize that a vacuum pump vacuumizes the several air chambers of electrical equipment simultaneously according to vacuum pump.The Security of work on the spot be can improve greatly, Utilization ratio and work on the spot efficient improved.
During work, because suction tude 2 is positioned at the bottom of oil sump tank 1, and be connected with vacuum pump by pipeline flange 3, when the generation vacuum pump quits work suddenly, vacuum oil enters oil sump tank 1 with air-flow, because of steam outlet pipe 6 is positioned at the top of oil sump tank 1, and has valve 7 and is connected with the equipment of being evacuated, and oil sump tank 1 volume is taken out equipment greater than the volume of vacuum oil in the vacuum pump so vacuum oil can not enter.Observe the interior vacuum oil mass of oil sump tank by viewing window 8 simultaneously.Emit vacuum oil by the drain line 5 and the valve 4 that are provided with in oil sump tank 1 bottom in the time of need draining the oil.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise break away from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. a transformer maintenance is prevented oil return apparatus with vacuum pump, comprise the suction tude (2) that is connected with the equipment of being evacuated with vacuum pump, it is characterized in that: on the pipeline of described suction tude, be provided with oil sump tank (1), suction tude is communicated with oil sump tank in a lower sidewall of oil sump tank, suction tude is connected with vacuum pump by flange (3), upper-end surface or side wall upper part at oil sump tank are provided with steam outlet pipe (6), and steam outlet pipe is connected with the equipment of being evacuated by valve (7).
2. prevent oil return apparatus according to the described transformer maintenance of claim 1 with vacuum pump, it is characterized in that: the lower end surface of described oil sump tank is provided with drain line (5), and drain line is provided with oil discharging valve (4).
3. prevent oil return apparatus according to the described transformer maintenance of claim 1 with vacuum pump, it is characterized in that: also be provided with the viewing window (8) that is used for oil mass in the inspection box on the sidewall of described oil sump tank.
4. prevent oil return apparatus to each described transformer maintenance with vacuum pump according to claim 1 to 3, it is characterized in that: the volume of described oil sump tank is greater than the volume of vacuum oil in the vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201794347U CN201526431U (en) | 2009-09-10 | 2009-09-10 | Vacuum pump oil return preventing device used for transformer maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201794347U CN201526431U (en) | 2009-09-10 | 2009-09-10 | Vacuum pump oil return preventing device used for transformer maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526431U true CN201526431U (en) | 2010-07-14 |
Family
ID=42517719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201794347U Expired - Fee Related CN201526431U (en) | 2009-09-10 | 2009-09-10 | Vacuum pump oil return preventing device used for transformer maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526431U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456463A (en) * | 2013-09-16 | 2013-12-18 | 南车株洲电机有限公司 | Oil injection device for transformer section maintenance and oil drainage and oil injection method |
| CN106089648A (en) * | 2016-07-13 | 2016-11-09 | 河南平高电气股份有限公司 | Oil air pump is had to return oil collection device |
| CN106895864A (en) * | 2015-12-18 | 2017-06-27 | 无锡市金义博仪器科技有限公司 | A kind of anti-oil-returning structure of vacuum |
| CN107100819A (en) * | 2017-06-20 | 2017-08-29 | 国网河南省电力公司平顶山供电公司 | A kind of anti-Oil sucking device of vavuum pump |
-
2009
- 2009-09-10 CN CN2009201794347U patent/CN201526431U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456463A (en) * | 2013-09-16 | 2013-12-18 | 南车株洲电机有限公司 | Oil injection device for transformer section maintenance and oil drainage and oil injection method |
| CN103456463B (en) * | 2013-09-16 | 2016-01-20 | 南车株洲电机有限公司 | A kind of transformer is at section maintenance oiling device and correction oil injection method of draining the oil |
| CN106895864A (en) * | 2015-12-18 | 2017-06-27 | 无锡市金义博仪器科技有限公司 | A kind of anti-oil-returning structure of vacuum |
| CN106089648A (en) * | 2016-07-13 | 2016-11-09 | 河南平高电气股份有限公司 | Oil air pump is had to return oil collection device |
| CN107100819A (en) * | 2017-06-20 | 2017-08-29 | 国网河南省电力公司平顶山供电公司 | A kind of anti-Oil sucking device of vavuum pump |
| CN107100819B (en) * | 2017-06-20 | 2019-06-21 | 国网河南省电力公司平顶山供电公司 | A kind of anti-Oil sucking device of vacuum pump |
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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: 20100714 Termination date: 20100910 |