CN208400671U - A kind of transformer belt electrofiltration oil system with inrush current prevention function - Google Patents
A kind of transformer belt electrofiltration oil system with inrush current prevention function Download PDFInfo
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- CN208400671U CN208400671U CN201820422204.8U CN201820422204U CN208400671U CN 208400671 U CN208400671 U CN 208400671U CN 201820422204 U CN201820422204 U CN 201820422204U CN 208400671 U CN208400671 U CN 208400671U
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- oil
- filtering tank
- transformer
- main filtering
- inrush current
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Abstract
The utility model relates to a kind of oil-filtering apparatus, more specifically, it is related to a kind of transformer belt electrofiltration oil system with inrush current prevention function, it include main filtering tank, it is connected between the input terminal of main filtering tank and the output end of draining valve by frequency conversion oil drain pump, the output end of main filtering tank and the input terminal of fuel feeding valve connect；It is equipped with input pressure monitoring device between draining valve and main filtering tank and into pressure tank monitoring device, for monitoring the pressure change of transformer oil, the slow raising of oil pressure is realized by frequency conversion oil drain pump, avoids oil drain pump from starting suddenly, shut down to generate and shove.
Description
Technical field
The utility model relates to oil-filtering apparatus, more particularly, to a kind of transformer belt electrofiltration with inrush current prevention function
Oil system.
Background technique
Transformer oil plays the role of insulation and cooling in transformer.In the process of running, transformer oil can be by for transformer
Performance decline occur in a variety of causes: moisture and metal ion increase, and dielectric loss increases, breakdown voltage, flash-point voltage and volume electricity
The decline of resistance rate, and the insulation resistance of oilpaper material is caused to decline, seriously threaten the safe operation of transformer.To improve transformer oil
Various performance indicators, with sufficiently high pressure voltage, when transformer oil deterioration to a certain extent when need to transformer
Oil is filtered.
Transformer power failure oil strain needs to complete the filtering of multiple circulation oil masses since transformer oil mass is big, if insulating oil
Deterioration influences winding insulation resistance, also to carry out the dehydration of winding, generally require more days continuous oil strains, and even more than ten is genius sometimes
It completes, seriously affects power supply reliability, or even cause the power failure of client.To avoid transformer from having a power failure for a long time, transformer electrification
The demand that oil strain has reality urgent, a variety of electrification oil filters are used by exploitation and regional area.Transformer belt electricity oil-filtering apparatus one
As include transformer Valve joint, oil drain pump, oil processing tank, temperature measuring equipment, pressure monitoring device, electric control unit composition,
Wherein oil processing tank is mainly made of heater, filter core, partially further includes vacuum dehydration degasser.
Transformer belt electrofiltration oil needs oil drain pump that transformer oil is forced to be recycled into oil filter, in oil drain pump shutdown process,
It is easy to cause transformer oil appearance to spring up suddenly, existing causes ontology grave gas malfunction to jump each side switch of main transformer, interrupts transformer
The risk of operation and customer power supply；Oil stream springs up the impurity that may also take up transformer precipitating suddenly, causes inside transformer
The variation of electric field or even internal field are excessive and discharge.
Therefore transformer belt electricity oil-filtering apparatus needs inrush current prevention system, prevents the suddenly change for causing transformer oil stream.
Summary of the invention
In order to overcome at least one of the drawbacks of the prior art described above, provide one kind has the function of inrush current prevention to the utility model
Transformer belt electrofiltration oil system, by frequency conversion oil drain pump realize oil pressure slow raising, avoid oil drain pump from starting, shut down suddenly
Generation is shoved.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of change with inrush current prevention function
Depressor charges oil filtering system, includes main filtering tank, passes through frequency conversion between the input terminal of main filtering tank and the output end of draining valve
Oil drain pump connection, the output end of main filtering tank and the input terminal of fuel feeding valve connect；Oil inlet is equipped between draining valve and main filtering tank
Pressure monitoring device and into pressure tank monitoring device, for monitoring the pressure change of transformer oil.
In the utility model, connected between the input terminal of main filtering tank and the output end of draining valve by frequency conversion oil drain pump,
Transformer oil pump filtering tank is become owner of by frequency conversion oil drain pump to be filtered.In order to avoid shoving in oil filtering system, frequency conversion
Oil drain pump starts the slow start since low frequency every time, until reaching specified running speed；When shutdown, slowly slow down until
It shuts down, avoids frequency conversion oil drain pump from starting suddenly, shuts down to generate and shove.The output end of main filtering tank is connected with fuel feeding valve, passes through note
Oil valve is by filtered transformer oil injection transformer.
In one embodiment, main filtering tank is equipped with several layers filter core, realizes the filtering of moisture and impurity respectively.
Several layers filter core is equipped in main filtering tank, different filter cores corresponds to different impurity screenings, real by multistage filtering
Now to the filtration treatment of transformer oil.
Preferably, main filtering tank is equipped with resistance heater, realizes the heating of transformer oil.
In order to sufficiently be removed in transformer oil filter process to the moisture in transformer oil, it is equipped in main filtering tank
Resistance heater evaporates the moisture in transformer oil by resistive heater heats transformer oil.
Preferably, fuel-displaced pressure monitoring device and flow monitoring device are equipped between main filtering tank and fuel feeding valve, for supervising
Survey the fuel-displaced pressure change of main filtering tank and fuel-displaced change in flow.
Fuel-displaced pressure monitoring device is equipped between main filtering tank and fuel feeding valve, the transformer oil filtered by main filtering tank
It flows through fuel-displaced pressure monitoring device and enters fuel feeding valve, be monitored by pressure of the fuel feeding valve to transformer oil.Pass through stream simultaneously
Slowdown monitoring device monitoring transformer oil flow velocity.
Preferably, check-valves is equipped between main filtering tank and fuel feeding valve between draining valve and main filtering tank.
It is equipped with check-valves between draining valve and main filtering tank, avoids during handling transformer oil, transformer oil falls
It is flow back into draining valve, transformer is entered by draining valve.It is equipped with check-valves between main filtering tank and fuel feeding valve, avoids processing
Transformer oil flow backwards enter main filtering tank.
In the utility model, using transformer oil self weight oil inlet, frequency conversion oil drain pump pressurizes to transformer oil, realizes and become
Depressor charges continuous oil strain.By the pressure monitoring device being equipped in systems, the safety in filter process is further increased
With inrush current prevention performance.Meanwhile it being equipped with check-valves in systems, it avoids processed transformer oil from flowing backwards and enters main filtering tank, together
When can effectively prevent shoving by check-valves.
Detailed description of the invention
Fig. 1 is overall structure diagram in the utility model.
Specific embodiment
Attached drawing only for illustration, should not be understood as limiting the present invention；In order to more preferably illustrate this implementation
Example, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；For those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.Positional relationship is described in attached drawing to be only used for
Exemplary illustration should not be understood as limiting the present invention.
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of transformer belt electrofiltration oil system with inrush current prevention function, include
Main filtering tank 1, transformer oil is in transformer, by 2 flow ipe of draining valve, flows into input pressure monitoring device through piping
21, the variation and range of input pressure are monitored by input pressure monitoring device 21.When input pressure does not change, transformer oil
Frequency conversion oil drain pump 3 is flowed into, frequency conversion oil drain pump 3 carries out transformer oil to stablize suction, avoids causing system since pump oil is unstable
Middle transformer oil shoves.
In the present embodiment, the transformer oil that frequency conversion oil drain pump 3 is discharged is entered through piping into pressure tank monitoring device 22,
By being monitored into pressure of the pressure tank monitoring device 22 to transformer oil, avoid causing due to oil drain pump oil extraction hypertonia
System problem, while can also shove in time according in pressure change discovery system, problem of shoving is excluded in time.
As shown in Figure 1, being filtered processing in main filtering tank 1 after transformer oil enters main filtering tank 1.Main filtering tank 1
In be equipped with several layers filter core, different filter cores correspond to different impurity screenings, passes through multistage filtering, mistake of the realization to transformer oil
Filter processing.It is equipped with resistance heater in main filtering tank 1, by resistive heater heats transformer oil, evaporates in transformer oil
Moisture.
As shown in Figure 1, transformer oil enters flow monitoring device 52, flow velocity after fuel-displaced pressure monitoring device 51 monitors
The monitoring of monitoring device 52 enters the flow velocity of the transformer oil of fuel feeding valve 6.
In the present embodiment, check-valves 7 is equipped between draining valve and main filtering tank, between main filtering tank and fuel feeding valve 6
Equipped with check-valves 8.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (5)
1. a kind of transformer belt electrofiltration oil system with inrush current prevention function, which is characterized in that include main filtering tank, main filtering
Connected between the input terminal of tank and the output end of draining valve by frequency conversion oil drain pump, the output end of main filtering tank and fuel feeding valve it is defeated
Enter end connection；Equipped with input pressure monitoring device and into pressure tank monitoring device between draining valve and main filtering tank, for monitoring
The pressure change of transformer oil.
2. the transformer belt electrofiltration oil system according to claim 1 with inrush current prevention function, which is characterized in that the master
Filtering tank is equipped with several layers filter core, realizes the filtering of moisture and impurity respectively.
3. the transformer belt electrofiltration oil system according to claim 2 with inrush current prevention function, which is characterized in that the master
Filtering tank is equipped with resistance heater, realizes the heating of transformer oil.
4. the transformer belt electrofiltration oil system according to claim 1 with inrush current prevention function, which is characterized in that the master
Fuel-displaced pressure monitoring device and flow monitoring device are equipped between filtering tank and fuel feeding valve, for monitoring the fuel-displaced pressure of main filtering tank
Power variation and fuel-displaced change in flow.
5. the transformer belt electrofiltration oil system according to any one of claims 1 to 4 with inrush current prevention function, feature exist
In being equipped with check-valves between main filtering tank and fuel feeding valve between the draining valve and main filtering tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820422204.8U CN208400671U (en) | 2018-03-27 | 2018-03-27 | A kind of transformer belt electrofiltration oil system with inrush current prevention function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820422204.8U CN208400671U (en) | 2018-03-27 | 2018-03-27 | A kind of transformer belt electrofiltration oil system with inrush current prevention function |
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| Publication Number | Publication Date |
|---|---|
| CN208400671U true CN208400671U (en) | 2019-01-18 |
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| CN201820422204.8U Active CN208400671U (en) | 2018-03-27 | 2018-03-27 | A kind of transformer belt electrofiltration oil system with inrush current prevention function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666091A (en) * | 2018-03-27 | 2018-10-16 | 广东电网有限责任公司佛山供电局 | A kind of transformer belt electrofiltration oil system with inrush current prevention function |
-
2018
- 2018-03-27 CN CN201820422204.8U patent/CN208400671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666091A (en) * | 2018-03-27 | 2018-10-16 | 广东电网有限责任公司佛山供电局 | A kind of transformer belt electrofiltration oil system with inrush current prevention function |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: 528011 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Patentee after: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION Address before: 528011 No. 1 South Fenjiang Road, Chancheng District, Guangdong, Foshan Co-patentee before: Shenyang Large Power Transformer Maintenance Co., Ltd. Patentee before: FOSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CORPORATION |