CN208173381U - Extra-high voltage transformer vacuumizes oil filtering integrated machine - Google Patents
Extra-high voltage transformer vacuumizes oil filtering integrated machine Download PDFInfo
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- CN208173381U CN208173381U CN201820513078.7U CN201820513078U CN208173381U CN 208173381 U CN208173381 U CN 208173381U CN 201820513078 U CN201820513078 U CN 201820513078U CN 208173381 U CN208173381 U CN 208173381U
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Abstract
The utility model discloses extra-high voltage transformers to vacuumize oil filtering integrated machine,Belong to transformer oil filter technical field,Including inlet oil filter,Indirect heater,Vacuum separation tank and two sets of vacuum systems,It is connected with solenoid valve between inlet oil filter and indirect heater in turn,Oil pump-variable-frequency motor,Flowmeter and temperature sensor,It is connected with temperature sensor and pressure vacuum gauge between indirect heater and vacuum separation tank in turn,Vacuum separation tank is connected with steam-water separation tank,The second valve is connected between two sets of vacuum systems,Magnetic double level gauge is installed on vacuum separation tank,Vacuum separation pot bottom is connected with the second oil pump-variable-frequency motor,The output end of second oil pump-variable-frequency motor is connected with check valve in turn,Pressure switch,Pressure gauge,Fine filter and second flowmeter,The output end of second flowmeter is connected with the 6th valve.The utility model is used in parallel using two twin-stage pumped vacuum systems, and pumping efficiency is higher, and filter effect is more preferable.
Description
Technical field
The utility model belongs to transformer oil filter technical field, and in particular to extra-high voltage transformer vacuumizes oil strain one
Machine.
Background technique
In China, extra-high voltage refers to ± 800 kilovolts or more of direct current and the voltage of 1000 kilovolts and the above alternating current
Grade.Extra-high pressure energy greatly promotes the conveying capacity of China's power grid.It is shown according to the data that State Grid Corporation of China provides, primary Ioops are special
High-voltage direct current power grid can send 6,000,000 kilowatts of electricity, be equivalent to 5 to 6 times of existing 500 Kilovolt Direct Current net, and power transmission away from
From being also 2 to 3 times of the latter, therefore efficiency greatly improves.In addition, calculating according to State Grid Corporation of China, the electricity of same power is conveyed
Amount, if can be than the land resource using 500 kilovolts of high-tension lines savings 60% using extra high voltage line transmission of electricity.
At present in transformer oil filter industry, different transformers are filtered with different model oil filters, and oil filter is only
Energy oil strain vacuumizes.When being handled for 500KV and the above transformer, also needs purchase individually to vacuumize unit and transformer is taken out
Vacuum.When construction, it need to transport and vacuumize two equipment of unit and oil filter, transport and complicated for operation.Especially present power grid changes
Upgrading is made, for the extra-high voltage transformer of 800KV or more, oiling, the technique requirement of oil strain, oil product are all improved, breakdown voltage
>=75KV, water content≤3PPm, gas content≤0.1%, working vacuum≤20Pa, ultimate vacuum≤3Pa, 2um or more particle≤
It 1000/100mL, is conveyed using super-pressure and extra-high voltage, technique and oil product requirement are higher, and traditional oil filter is more difficult to meet.
Utility model content
The utility model aim is：It is intended to provide a kind of extra-high voltage transformer and vacuumizes oil filtering integrated machine, it is double using two
Grade pumped vacuum systems is used in parallel, and pumping efficiency is higher, and filter effect is more preferable.
To realize the above-mentioned technical purpose, the technical solution adopted in the utility model is as follows：
Extra-high voltage transformer vacuumizes oil filtering integrated machine, including inlet oil filter, indirect heater, vacuum separation tank and two
Vacuum system is covered, there are four the first valve, the inlet oil filter and indirect heatings for the input terminal connection of the inlet oil filter
It is connected with solenoid valve, the first oil pump-variable-frequency motor, first flowmeter and temperature sensor, the indirect heating between device in turn
It is connected with temperature sensor and pressure vacuum gauge between device and vacuum separation tank in turn, the vacuum separation tank is connected with carbonated drink point
From tank, be connected with the different pipeline of three root canal diameters between the vacuum separation tank and steam-water separation tank, the steam-water separation tank with
Two sets of vacuum systems connect, and are connected with the second valve between two sets of vacuum systems, are equipped with magnetic on the vacuum separation tank
Flap level gauge, the vacuum separation pot bottom are connected with the second oil pump-variable-frequency motor, the second oil pump-variable-frequency motor
Output end is connected with check valve, pressure switch, first pressure gauge, the first fine filter, second pressure gauge, the second essence filtering in turn
Device and second flowmeter, the output end of the second flowmeter are connected with the 6th valve, and first valve is connected to second
On pipeline between meter and the 6th valve.
Further limit, the vacuum system include with the tank connected lobe pump of steam-water separation, the steam-water separation tank with
Electron vacuum gage is connected between lobe pump, the lobe pump is connected with condenser, electromagnetic vacuum belt gas-charging valve and vacuum in turn
Pump.
It further limits, is also connected with optoelectronic switch on the condenser.Such structure design, optoelectronic switch can be right
Condenser is detected, and such as detects that signal will likely generate fuel injection event, equipment alarms autostop, and passes through solenoid valve
Oil circuit is cut off, electromagnetic vacuum belt gas-charging valve cuts off vacuum line.Vacuum separation tank is made to form airtight chamber by the method, it will
Prevent vacuum separation tank oil spout.
It further limits, third valve, the third valve is connected between second fine filter and second flowmeter
The 4th valve, third pressure gauge, third fine filter and the 5th valve are connected in turn between door and the second fine filter, it is described
The output end of 5th valve is connected on the pipeline between third valve and second flowmeter.Such structure design, works as filtering
When 500KV or less transformer, oil product requires to reduce, and can close the 4th valve and the 5th valve, opens third valve, transformer
Oil only passes through the first fine filter and the second fine filter, reduces third fine filter cartridge and uses, thus using the service life is extended,
Achieve the purpose that filtering；When filtering 500KV or less transformer, third valve is closed, opens the 4th valve and the 5th valve, is become
Depressor oil passes through the first fine filter, the second fine filter and third fine filter collective effect, achievees the purpose that filtering, so that
Filter effect is more preferable, reaches NAS0 grades or less.
It further limits, first valve, the second valve, third valve, the 4th valve and the 5th valve are manual
Ball valve.Such structure design, structure is simple, and operation is easy to maintenance, cheap.
It further limits, is also connected with optoelectronic switch on the steam-water separation tank.Such structure design, optoelectronic switch energy
It is enough that steam-water separation tank is detected, it such as detects signal, illustrates full of a large amount of bubbles in vacuum separation tank, it is automatic by program
It reduces, oil pump-variable-frequency motor frequency, reduces disengaging oil mass, reach and automatically control bubbles volume in vacuum separation tank, prevent vacuum
Knockout drum excessively generates fuel injection event because of bubble.
Using the utility model of the technical program, when work, transformer oil first pass around inlet oil filter filter out it is big
Granule foreign prevents oil pump-variable-frequency motor to be stuck, and then transformer oil is delivered in indirect heater and is heated, heating
Transformer oil afterwards enters in vacuum separation tank, and under the action of vacuum, the boiling point reduction of water becomes gaseous state, in transformer oil
Gas is taken away by the twin-stage pumped vacuum systems that vacuum pump and lobe pump form together, and is discharged by vacuum pump；Oil liquid passes through weight
Power effect flows into vacuum separation tank bottom deposit, then is transported to the first fine filter, the second smart mistake by oil pump-variable-frequency motor
Filter and third fine filter, achieve the purpose that filtering.
, mainly there is the following in the advantages of the utility model：
1, inlet and outlet are gone the same way using hollow, can be realized and be exchanged without detaching pipelines by manual ball valve；
2, disengaging oil pump is controlled using variable-frequency motor, by inlet and outlet flowmeter and magnetic double level gauge, realizes processing stream
The quantitative control of amount, liquid level can be stabilized to setting height and not change with environment, be suitble to the complex environments such as including highlands.No
Different processing flows is needed with transformer, and identical transformer wants flow in different process such as oiling, hot-oil circulations
Ask also different.By the electrodeless adjustment of flow, it can be achieved that existing various transformers can reduce Multiple Type to the requirement of oil processing technique
Oil filter and different oil filter complex operations；
3, black soy sauce vacuum system is formed using vacuum pump and Roots's series connection of pumps, can vacuumized simultaneously and oil strain, meet 500KV
And the above transformer vacuumizes the requirement of oiling technique simultaneously, therefore is not required to individually vacuumize when 500KV and the filtering of the above transformer
Unit reduces freight volume and operation；
4, it is connected using 3 grades of fine filters, so that oil reaches 0 grade of NAS hereinafter, being satisfied with 500KV or more spy after filtering
The requirement of high-tension transformer oil, when filtering 500KV or less transformer, oil product requires to reduce, and can pass through, manual ball valve switching pipe
Road is reduced third level superhigh precision filter core and is used to using the extension service life；
5, vacuum separation tank is connected by 3 pipelines of different sizes with steam-water separation tank, and it is different to form 3 vacuum degrees
Chamber, realize 3 grades of vacuum outgas dehydration, dehydration degassing efficiency is higher, after processing the micro- water of transformer oil can be down to 3ppm hereinafter,
Gas content is down to 0.1% or less；
6, steam-water separation tank oil liquid and bubble are detected using optoelectronic switch, such as detects signal, illustrates in vacuum separation tank
Full of a large amount of bubbles, oil pump-variable-frequency motor frequency is reduced automatically by program, reduce disengaging oil mass, reach automatic control vacuum
Bubbles volume in knockout drum, prevents vacuum separation tank from excessively generating fuel injection event because of bubble；
7, condenser oil liquid is detected using optoelectronic switch, such as detects that signal will likely generate fuel injection event, equipment will be certainly
Dynamic stopping alarm, and oil circuit is cut off by solenoid valve, electromagnetic vacuum belt gas-charging valve cuts off vacuum line, is made very by the method
Empty knockout drum forms airtight chamber, will prevent vacuum separation tank oil spout；
8, using flowmeter detection flows, temperature sensor detects inlet oil temperature and oil outlet temperature, then passes through process control
Indirect heater heating group number, realizes accurately controlling for heating temperature.Low heat loads heater adds accurate heating amount, realizes and becomes
Depressor oil safe heating prevents transformer oil because of the excessively high generation aging of local heating temperature.
Detailed description of the invention
The utility model can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is the structural schematic diagram that the utility model extra-high voltage transformer vacuumizes oil filtering integrated machine embodiment；
Main element symbol description is as follows：
First valve 101, the second valve 102, third valve 103, the 4th valve 104, the 5th valve 105, oil strainer
2, solenoid valve 3, the first oil pump-variable-frequency motor 41, the second oil pump-variable-frequency motor 42, first flowmeter 51, second flowmeter 52,
Temperature sensor 6, indirect heater 7, pressure vacuum gauge 8, vacuum separation tank 9, magnetic double level gauge 10, check valve 11, pressure
Switch 12, first pressure gauge 131, second pressure gauge 132, the first fine filter 141, the second fine filter 142, optoelectronic switch
15, steam-water separation tank 16, electron vacuum gage 17, lobe pump 18, condenser 19, electromagnetic vacuum belt gas-charging valve 20, vacuum pump 21.
Specific embodiment
It is right with reference to the accompanying drawings and examples in order to make those skilled in the art that the utility model may be better understood
Technical solutions of the utility model further illustrate.
As shown in Figure 1, the extra-high voltage transformer of the utility model vacuumizes oil filtering integrated machine, including inlet oil filter 2,
Heater 7, vacuum separation tank 9 and two sets of vacuum systems are connect, the input terminal of inlet oil filter 2 is connected there are four the first valve 101,
It is connected with solenoid valve 3, the first oil pump-variable-frequency motor 41, first flowmeter between inlet oil filter 2 and indirect heater 7 in turn
51 and temperature sensor 6, it is connected with temperature sensor 6 and pressure vacuum gauge between indirect heater 7 and vacuum separation tank 9 in turn
8, vacuum separation tank 9 is connected with steam-water separation tank 16, and three root canal diameters are connected between vacuum separation tank 9 and steam-water separation tank 16 not
With pipeline, be also connected with optoelectronic switch 15 on steam-water separation tank 16, steam-water separation tank 16 is connect with two sets of vacuum systems, two sets
It is connected with the second valve 102 between vacuum system, magnetic double level gauge 10,9 bottom of vacuum separation tank are installed on vacuum separation tank 9
Portion is connected with the second oil pump-variable-frequency motor 42, and the output end of the second oil pump-variable-frequency motor 42 is connected with check valve 11, pressure in turn
Power switch 12, first pressure gauge 131, the first fine filter 141, second pressure gauge 132, the second fine filter 142 and second
Meter 52, the output end of second flowmeter 52 are connected with the 6th valve 106, the first valve 101 be connected to second flowmeter 52 with
On pipeline between 6th valve 106, vacuum system includes the lobe pump 18 connecting with steam-water separation tank 16, steam-water separation tank 16
Electron vacuum gage 17 is connected between lobe pump 18, lobe pump 18 is connected with condenser 19, electromagnetic vacuum belt gas-charging valve in turn
20 and vacuum pump 21, optoelectronic switch 15 is also connected on condenser 19.
In the above-described embodiments, third valve preferably is connected between the second fine filter 142 and second flowmeter 52
103, the 4th valve 104, third pressure gauge 133, third are connected in turn between third valve 103 and the second fine filter 142
Fine filter 143 and the 5th valve 105, the output end of the 5th valve 105 be connected to third valve 103 and second flowmeter 52 it
Between pipeline on.Such structure design, when filtering 500KV or less transformer, oil product requires to reduce, and can close the 4th valve
Door 104 and the 5th valve 105, open third valve 103, and transformer oil only passes through the first fine filter 141 and the second essence filtering
Device 142 reduces 143 filter core of third fine filter and uses, to achieve the purpose that filtering using the service life is extended；As filtering 500KV
When following transformer, third valve 103 is closed, opens the 4th valve 104 and the 5th valve 105, transformer oil is by the first essence
143 collective effect of filter 141, the second fine filter 142 and third fine filter, achievees the purpose that filtering, so that filtering effect
Fruit is more preferable, reaches NAS0 grades or less.
In the above-described embodiments, preferably the first valve 101, the second valve 102, third valve 103,104 and of the 4th valve
5th valve 105 is manual ball valve.Such structure design, structure is simple, and operation is easy to maintenance, cheap.
In the above-described embodiments, when work（Filled arrows indicate oil circuit pipeline in figure, and hollow arrow indicates vacuum line）,
Transformer oil first passes around inlet oil filter 2 and filters out big granule foreign, prevents oil pump-variable-frequency motor 4 to be stuck, then becomes
Depressor oil passes sequentially through solenoid valve 3, oil pump-variable-frequency motor 4, first flowmeter 51 and temperature sensor 6 again and is delivered to be added indirectly
It is heated in hot device 7, the transformer oil after heating enters in vacuum separation tank 9, and under the action of vacuum, the boiling point of water is reduced
Become gaseous state, is taken away with Gas in Oil of Transformer by the twin-stage pumped vacuum systems that vacuum pump 21 and lobe pump 18 form, and
It is discharged by vacuum pump 21；Oil liquid flows into 9 bottom deposit of vacuum separation tank by gravity, then passes through oil pump-variable-frequency motor 4
It is transported to the first fine filter 141, the second fine filter 142 and third fine filter 143；When filtering 500KV or less transformation
When device, oil product requires to reduce, and can close the 4th valve 104 and the 5th valve 105, opens third valve 103, transformer oil is only
It by the first fine filter 141 and the second fine filter 142, reduces 143 filter core of third fine filter and uses, thus using extending
Service life achievees the purpose that filtering；When filtering 500KV or less transformer, third valve 103 is closed, opens 104 He of the 4th valve
5th valve 105, transformer oil are common by the first fine filter 141, the second fine filter 142 and third fine filter 143
Effect, achievees the purpose that filtering, so that filter effect is more preferable, reaches NAS0 grades or less；After transformer oil is by circulation, it is removed
Middle moisture, impurity and gas increase its dielectric strength；The setting of two sets of vacuum systems, when wherein a set of vacuum system is right
When vacuum separation tank 9 works, another set of vacuum system can simultaneously be vacuumized transformer；When individually vacuumizing or when oil strain,
Second valve 102 can be opened, two sets of vacuum systems vacuumize simultaneously or oil strain, working efficiency are higher.
By experiment, this vacuumizes the performance parameter such as following table of oil filtering integrated machine：
| Index name | Processing capacity L/min | Breakdown voltage KV | Micro- water PPM | Gas content % | Filtering accuracy μm | Working vacuum degree PA | Operating temperature DEG C | Operating noise dB | Filter efficiency % |
| Value | 30 | ≥75 | ≤5 | ≤0.1 | 1-3 | ≤50 | 40-70 | ≤60 | 99.9 |
Oil filtering integrated machine is vacuumized to extra-high voltage transformer provided by the utility model above to be described in detail.Specifically
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model.It should be pointed out that for this technology
For the those of ordinary skill in field, without departing from the principle of this utility model, the utility model can also be carried out
Some improvements and modifications, modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (6)
1. extra-high voltage transformer vacuumizes oil filtering integrated machine, including inlet oil filter（2）, indirect heater（7）, vacuum separation tank
（9）With two sets of vacuum systems, it is characterised in that：The inlet oil filter（2）Input terminal connection there are four the first valve
（101）, the inlet oil filter（2）With indirect heater（7）Between be connected with solenoid valve in turn（3）, the first oil pump-variable-frequency electric
Machine（41）, first flowmeter（51）And temperature sensor（6）, the indirect heater（7）With vacuum separation tank（9）Between successively
It is connected with temperature sensor（6）And pressure vacuum gauge（8）, the vacuum separation tank（9）It is connected with steam-water separation tank（16）, described
Vacuum separation tank（9）With steam-water separation tank（16）Between be connected with the different pipeline of three root canal diameters, the steam-water separation tank（16）
It is connect with two sets of vacuum systems, is connected with the second valve between two sets of vacuum systems（102）, the vacuum separation tank（9）
On magnetic double level gauge is installed（10）, the vacuum separation tank（9）Bottom is connected with the second oil pump-variable-frequency motor（42）, institute
State the second oil pump-variable-frequency motor（42）Output end be connected with check valve in turn（11）, pressure switch（12）, first pressure gauge
（131）, the first fine filter（141）, second pressure gauge（132）, the second fine filter（142）And second flowmeter（52）, institute
State second flowmeter（52）Output end be connected with the 6th valve（106）, first valve（101）It is connected to second flowmeter
（52）With the 6th valve（106）Between pipeline on.
2. extra-high voltage transformer according to claim 1 vacuumizes oil filtering integrated machine, it is characterised in that：The vacuum system
Including with steam-water separation tank（16）The lobe pump of connection（18）, the steam-water separation tank（16）With lobe pump（18）Between be connected with
Electron vacuum gage（17）, the lobe pump（18）It is connected with condenser in turn（19）, electromagnetic vacuum belt gas-charging valve（20）And vacuum
Pump（21）.
3. extra-high voltage transformer according to claim 2 vacuumizes oil filtering integrated machine, it is characterised in that：The condenser
（19）On be also connected with optoelectronic switch（15）.
4. extra-high voltage transformer according to claim 1 vacuumizes oil filtering integrated machine, it is characterised in that：Described second smart mistake
Filter（142）With second flowmeter（52）Between be connected with third valve（103）, the third valve（103）With the second smart mistake
Filter（142）Between be connected with the 4th valve in turn（104）, third pressure gauge（133）, third fine filter（143）With the 5th
Valve（105）, the 5th valve（105）Output end be connected to third valve（103）With second flowmeter（52）Between
On pipeline.
5. extra-high voltage transformer according to claim 4 vacuumizes oil filtering integrated machine, it is characterised in that：First valve
（101）, the second valve（102）, third valve（103）, the 4th valve（104）With the 5th valve（105）It is manual ball valve.
6. vacuumizing oil filtering integrated machine to extra-high voltage transformer described in any one of 5 according to claim 1, feature exists
In：The steam-water separation tank（16）On be also connected with optoelectronic switch（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513078.7U CN208173381U (en) | 2018-04-12 | 2018-04-12 | Extra-high voltage transformer vacuumizes oil filtering integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513078.7U CN208173381U (en) | 2018-04-12 | 2018-04-12 | Extra-high voltage transformer vacuumizes oil filtering integrated machine |
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| Publication Number | Publication Date |
|---|---|
| CN208173381U true CN208173381U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820513078.7U Active CN208173381U (en) | 2018-04-12 | 2018-04-12 | Extra-high voltage transformer vacuumizes oil filtering integrated machine |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786076A (en) * | 2019-02-01 | 2019-05-21 | 国网浙江省电力有限公司宁波供电公司 | The single hole vacuum oil equipment and correction oil injection method of oil-immersed transformer |
-
2018
- 2018-04-12 CN CN201820513078.7U patent/CN208173381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786076A (en) * | 2019-02-01 | 2019-05-21 | 国网浙江省电力有限公司宁波供电公司 | The single hole vacuum oil equipment and correction oil injection method of oil-immersed transformer |
| CN109786076B (en) * | 2019-02-01 | 2023-12-29 | 国网浙江省电力有限公司宁波供电公司 | Single-hole vacuum oiling equipment and method for oil immersed transformer |
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