CN206921622U - A kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers - Google Patents
A kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers Download PDFInfo
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- CN206921622U CN206921622U CN201621212170.7U CN201621212170U CN206921622U CN 206921622 U CN206921622 U CN 206921622U CN 201621212170 U CN201621212170 U CN 201621212170U CN 206921622 U CN206921622 U CN 206921622U
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- filtering apparatus
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Abstract
The utility model discloses a kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers, including Fill valve, delivery valve, control cabinet, oil inlet and oil-out, the oil inlet is sequentially connected oil pump, filter, oil-out by oil pipe, the filter is equipped with pressure gauge, and the oil-out is provided with sample cock.The utility model can in the case where on-load tap-changer of transformer does not turn off automatic oil filtering, the effective safety and reliability for improving load ratio bridging switch work, extend maintenance cycle, reach the purpose of repair based on condition of component.Meanwhile whether sampling detection oil is in eligible state, if needs are changed oil online and repairing, reduce frequency of power cut, power off time, maintenance frequency, ensure that uninterrupted power supply, improve power supply quality.
Description
Technical field
A kind of load switch of transformer equipment is the utility model is related to, more particularly to a kind of on-load tap changers of transformers exists
Line automatic oil filtering device.
Background technology
In metallurgical industry, supplier of the commutation system as electrowinning process direct current plays and its important effect.It is whole
The effect of convertor transformer is to provide AC power to rectifier, and whether the operation conditions of on-load voltage regulating switch is good, directly affects
To the safe and reliable operation of transformer.And the operation conditions of on-load voltage regulating switch depends on the oil quality of switching grease chamber.To exhausted
For edge oil, transformer frequently pressure regulation, cause oily horizontal rapid reduction of insulating.Therefore, on-load voltage regulating switch is switched
The insulating oil of grease chamber is tested and purified, and is to ensure the successional important process of direct current supply.Ensure transformer station high-voltage side bus when and
When remove insulating oil in because switch switching and caused by impurity, effectively reduce trace water, it is ensured that insulating oil possesses excellent hit
Voltage effect is worn, improves reliability, the validity of load ratio bridging switch work, strengthens the security of transformer；Inferior position is it
Filtering, the purification to insulating oil are considered only, without fundamentally solution repairing, problem of changing oil.First, insulating oil can be because outer
Boundary's environmental change and there is the phenomenon expanded with heat and contract with cold so that oil level declines, at this moment just need power failure supplementary insulation oily；Its
Secondary, after insulating oil is using some cycles (generally 1 year), insulation effect will be reduced, it is necessary to change, and at this moment just need to grow
Time has a power failure, and overhauls simultaneously, once needs to have a power failure more than 24h, influences normal power supply, and labor intensive resource；Furthermore some are led
Time variant voltage is floated substantially, and load variations are larger, and switch switching times are more, and insulating oil quality decline is very fast, is changed more frequent.Entering
Same passage is used with original oil strain when row is mended, changed oil, fresh oil will be caused to be mixed when flowing through passage with old oily residue, from
And influence the quality of oil.
And for example for the U of CN 204497016 the utility model discloses a kind of online refueling device of load switch of transformer, it is special
Sign is：Including gasoline pump, the inflow pipeline being communicated between gasoline pump and the loaded switch oil conservater, moisture absorption pipe is connected to
Three-way pipe on road and the breather pipe for being connected to the three-way pipe openend；An inlet valve, institute are provided with the inflow pipeline
State and an air outlet valve is provided with breather pipe, a stop valve is provided between the three-way pipe and dehydrating breather.Automatic control for convenience
System, the online refueling device of the load switch of transformer also include a controller, and the signal input part of the controller is with there is load to open
The oil level indicator closed in oil conservater is connected, the signal output part of the controller respectively with gasoline pump, inlet valve, air outlet valve, cut
Only valve is connected.Advantage of the present utility model is：The online refueling device of the load switch of transformer is simple in construction, small volume,
It is simple, convenient, practical, it is only necessary to be turned on or off i.e. achievable the online of load switch of transformer of corresponding valve and add
Oil, and in refueling process, without disassembling or installing each part of connection, the quantity of energy of consumption is small, and operating efficiency is high.Inferior position
It is that it considers only the online oiling to load switch of transformer, without fundamentally solution filtering, purifying problem.
Utility model content
The utility model is directed to disadvantage mentioned above, there is provided a kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers.
To realize the purpose of this utility model, the technical solution adopted in the utility model is：
A kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers, including Fill valve, delivery valve, control cabinet, oil-feed
Mouth and oil-out, the oil inlet are sequentially connected oil pump, filter, oil-out by oil pipe, and the filter is equipped with pressure gauge,
The flowline is provided with sample cock.
Preferably, the filter is 2, and respectively except water filter and removal filtration device, and oil is from loaded tap-off
Extracted out in circuit-breaker oil room, first pass through a removal filtration device, water filter is removed by one.
Preferably, the control cabinet includes single-chip microcomputer and controller, the controller connection control motor；
Preferably, the flowline with shunting switch room, oil inlet pipe are connected respectively for the oil inlet, oil-out, the repairing
Valve and delivery valve are connected to load ratio bridging switch room oil drum by flexible pipe；The oil pipe of the oil inlet and oil-out and Fill valve and go out
The flexible pipe of fuel tap is not belonging to same passage；
Preferably, the oil pump is 2, drives work by corresponding motor respectively；
The beneficial effects of the utility model are：It can be filtered automatically in the case where on-load tap-changer of transformer does not turn off
Oil, the effective safety and reliability for improving load ratio bridging switch work, extends maintenance cycle, reaches the mesh of repair based on condition of component
's.Meanwhile whether sampling detection oil be in eligible state, if need to change oil and repairing online, reduce frequency of power cut,
Power off time, maintenance frequency, ensure that uninterrupted power supply, improve power supply quality.
Brief description of the drawings
Fig. 1 is the utility model on-line Oil Filtering Device of Transformer On-load Tap schematic diagram；
Fig. 2 is the utility model oil strain, loop diagram of changing oil；
In accompanying drawing：
1st, load tap changer oil chamber 2, control cabinet 3, motor
4th, oil pump 5, pressure gauge 6, filter
7th, sample cock 8, oil-out 9, oil inlet
10th, Fill valve 11, delivery valve 12, the return circuit of oil filtering
13rd, change oil loop
Embodiment
The utility model is further elaborated below in conjunction with the accompanying drawings.
Oil strain mode has two kinds：Manual oil strain and automatic detection oil strain.As illustrated, the control of manual oil strain is using control
The controller switches control of case 2 processed, the control cabinet 2 include single-chip microcomputer and controller, have manual, automatic, start by set date, work
Make the functions such as time setting, action frequency record can be achieved.Start manual oil strain, the return circuit of oil filtering by pressing manual oil strain switch
12：Controller control motor 3A works, and motor 3A is driven oil pump 4A work, after oil pump 4A starts, will be divided using pressure
The oil for connecing switch grease chamber 1 is drawn into filter by connecting oil inlet 9, and the filter filter 6 is 2, is respectively removed water
Filter and removal filtration device, first pass through a removal of impurities mass filter and filter well cuts, water filter is removed by oil by one
Middle moisture content absorption, the oil then filtered are injected into oil cabinet of tap switches 14 by oil-out 8.It can manually terminate to filter
Oil, can also be by device oil strain 50min after, it is automatic to close.The controller of control cabinet 2 after run time set in advance is reached
Auto-controlled motor is started working, beginning automatic oil filtering, automatic to close after device oil strain 50min.In transformer loaded tap-off
Automatic oil filtering in the case that switch grease chamber 1 does not turn off, the effective safety and reliability for improving load ratio bridging switch work.
The pressure gauge 5 is used for detecting pressure in the filter tank of filter 6, and impurity, which increases, in tank causes filter pressure inside the tank liter
Height, when pressure reaches pressure switch working value, pressure switch action, power protection switch trip, motor shuts down, oil strain
Machine stops filtering, prompts to change filter core, it is ensured that the safety of device.
After insulating oil uses some cycles, insulation effect will reduce, and take out a part of sample by sample cock 7 and enter
Whether row detection, detection oil are in eligible state, when oil is in eligible state, it is not necessary to changed oil；When oil is in
Unqualified state, load tap changer oil chamber 1 need to change oil, loop 13 of changing oil：Fill valve 10 and delivery valve 11 need to be opened, simultaneously
Motor 3B and motor 3A is opened, drives oil pump 4B that 10 mouthfuls of fresh oils of Fill valve have been entered load through flexible pipe by motor 3B
Oil cabinet of tap switches 1, meanwhile, drive oil pump 4A the insulating oil in load tap changer oil chamber 1 from fuel-displaced by motor 3A
11 mouthfuls of discharges of valve, realization are changed oil online.In addition, when shunting switch oil level is relatively low, only opens Fill valve (10) and close oil strain dress
The oil inlet pipe 9 put, while open motor 3B, during oil changing device repairing, oil circuit trend：Oil pump 4B is driven by motor 3B
Changing oil, import fresh oil enters load tap changer oil chamber 14 through flexible pipe, and such oil can be added in shunting switch 1, realized
Line repairing.The flexible pipe of the oil pipe of above-mentioned oil inlet 9 and oil-out 8 and Fill valve 10 and delivery valve 11 is not belonging to same passage, with
Exempt from so that fresh oil mixes when flowing through passage with old oily residue, so as to influence the quality of oil.The above-mentioned transformer that realizes has load
The on-line automatic oil strain of shunting switch and it is online plus, change oil, reduce frequency of power cut, power off time, maintenance frequency, between ensure that not
Cut-off electricity, improves power supply quality.
Claims (5)
1. a kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers, including Fill valve (10), delivery valve (11), control cabinet
(2), oil inlet (9) and oil-out (8), the oil inlet (9) are sequentially connected oil pump, filter (6), oil-out by oil pipe
(8), the filter (6) is equipped with pressure gauge (5), and the oil-out (8) is provided with sample cock (7).
2. the on-line automatic oil-filtering apparatus of on-load tap changers of transformers according to claim 1, it is characterized in that, the filtering
Device (6) is 2, and respectively except water filter and removal filtration device, and oil is extracted out out of load tap changer oil chamber (1), first
By a removal filtration device, water filter is removed by one.
3. the on-line automatic oil-filtering apparatus of on-load tap changers of transformers according to claim 1, it is characterized in that, the control
Case (2) includes single-chip microcomputer and controller；The controller connection control motor.
4. the on-line automatic oil-filtering apparatus of on-load tap changers of transformers according to claim 1, it is characterized in that, the oil-feed
Flowline, the oil inlet pipe of mouthful (9), oil-out (8) respectively with load tap changer oil chamber (1) are connected, the Fill valve (10) and
Delivery valve (11) is connected to load tap changer oil chamber (1) oil drum by flexible pipe；The oil inlet (9) and the oil pipe of oil-out (8)
Same passage is not belonging to the flexible pipe of Fill valve (10) and delivery valve (11).
5. the on-line automatic oil-filtering apparatus of on-load tap changers of transformers according to claim 1, it is characterized in that, the oil pump
For 2, respectively oil pump (4A) and oil pump (4B) and pass through corresponding motor (3A) and motor (3B) and drive work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621212170.7U CN206921622U (en) | 2016-11-10 | 2016-11-10 | A kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621212170.7U CN206921622U (en) | 2016-11-10 | 2016-11-10 | A kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206921622U true CN206921622U (en) | 2018-01-23 |
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ID=61309758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621212170.7U Active CN206921622U (en) | 2016-11-10 | 2016-11-10 | A kind of on-line automatic oil-filtering apparatus of on-load tap changers of transformers |
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| Country | Link |
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| CN (1) | CN206921622U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318290A (en) * | 2018-05-11 | 2018-07-24 | 吴江远洋电气有限责任公司 | A kind of on-load tap-changer of transformer oil sealed sampling device |
| CN108597771A (en) * | 2018-04-28 | 2018-09-28 | 国家电网公司 | A kind of portable loaded switch oil strain repairing is changed oil three-in-one unit and its application process |
| CN108766732A (en) * | 2018-05-11 | 2018-11-06 | 吴江远洋电气有限责任公司 | A kind of on-load tap-changer of transformer automatic oil recharging device |
| CN112670056A (en) * | 2020-12-10 | 2021-04-16 | 广东电网有限责任公司 | Oil supplementing device and method for on-load tap-changer of transformer |
| CN113776620A (en) * | 2021-09-15 | 2021-12-10 | 广东电网有限责任公司 | Automatic oil filter pipe type oil level indicator |
-
2016
- 2016-11-10 CN CN201621212170.7U patent/CN206921622U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597771A (en) * | 2018-04-28 | 2018-09-28 | 国家电网公司 | A kind of portable loaded switch oil strain repairing is changed oil three-in-one unit and its application process |
| CN108318290A (en) * | 2018-05-11 | 2018-07-24 | 吴江远洋电气有限责任公司 | A kind of on-load tap-changer of transformer oil sealed sampling device |
| CN108766732A (en) * | 2018-05-11 | 2018-11-06 | 吴江远洋电气有限责任公司 | A kind of on-load tap-changer of transformer automatic oil recharging device |
| CN112670056A (en) * | 2020-12-10 | 2021-04-16 | 广东电网有限责任公司 | Oil supplementing device and method for on-load tap-changer of transformer |
| CN113776620A (en) * | 2021-09-15 | 2021-12-10 | 广东电网有限责任公司 | Automatic oil filter pipe type oil level indicator |
| CN113776620B (en) * | 2021-09-15 | 2024-02-23 | 广东电网有限责任公司 | Automatic oil filtering pipe type oil level gauge |
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