CN102779621A - Oil replacement device - Google Patents
Oil replacement device Download PDFInfo
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- CN102779621A CN102779621A CN201210296854XA CN201210296854A CN102779621A CN 102779621 A CN102779621 A CN 102779621A CN 201210296854X A CN201210296854X A CN 201210296854XA CN 201210296854 A CN201210296854 A CN 201210296854A CN 102779621 A CN102779621 A CN 102779621A
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Abstract
The embodiment of the invention discloses an oil replacement device at least comprising an effluent oil pipe, a fresh oil pipe, an oil inlet, a coarse filter core, a pumping-injecting machine and an oil outlet, wherein the oil inlet, the coarse filter core, the pumping-injecting machine and the oil outlet are connected in sequence. The effluent oil pipe comprises a first effluent oil pipe and a second effluent oil pipe; the fresh oil pipe comprises a first fresh oil pipe and a second fresh oil pipe; the pumping-injecting machine at least comprises an oil pump, a three-way valve, an effluent oil channel and a fresh oil channel; a first port of the oil pump is connected with the coarse filter core; a second port of the oil pump is communicated with a first port of the three-way valve; a second port of the three-way valve is communicated with the first port of the effluent oil channel; a third port of the three-way valve is communicated with a first port of the fresh oil channel; and the second port of the effluent oil channel and a second port of the fresh oil channel are communicated with the oil outlet. Effluent oil and fresh oil enter different channels, so that the oil product pollution can be reduced, and further a series of problems caused by the oil product pollution can be solved.
Description
Technical field
The application is specifically related to oil changing device.
Background technology
On-load tap changers of transformers adopts insulating oil as insulating material.General per 12 years of on load tap changer, or during tap conversion 5000-10000 times, or the insulating oil puncture voltage need be changed oil when being lower than 25kV.
The current power on-load tap changers of transformers is changed oil and is generally adopted single oil pump operation, promptly extracts sump oil out and all passes through same oil pump, the realization of same pipeline with the injection fresh oil.Because the shared same pipeline of waste oil and fresh oil causes oil pollution easily, thereby influences the dielectric strength of on load tap changer when changing oil, and causes insulating oil to shorten useful life.
The application content
In view of this, the application provides oil changing device, to address the above problem.
The application embodiment is achieved in that
A kind of on-load tap changers of transformers is used oil changing device, comprises contaminated oil pipe, new oil pipe at least, and the oil-in, the coarse filter element that connect in order, takes out notes machine and oil-out;
Said contaminated oil pipe comprises first contaminated oil pipe and second contaminated oil pipe, and said new oil pipe comprises the first new oil pipe and the second new oil pipe;
The said notes machine of taking out comprises oil pump, three-way valve, sump oil passage and fresh oil passage at least;
Wherein:
First port of said oil pump connects said coarse filter element, and second port of said oil pump is connected with first port of said three-way valve;
Second port of said three-way valve is connected with first port of said sump oil passage, and the 3rd port of said three-way valve is connected with first port of said fresh oil passage;
Second port of said sump oil passage, and second port of said fresh oil passage all is connected with said oil-out.
Preferably, also comprise the flow rate transducer.
Preferably, between second port of said oil pump and first port of said three-way valve, also be disposed with the pressure controller and the Pressure gauge that are connected.
Preferably, also comprise the universal front-wheel that is installed on said oil pump bottom.
Preferably, said fresh oil passage comprises unidirectional valve and the smart filter core passage that is connected at least.
Preferably, the mouth of pipe place of said first contaminated oil pipe and the first new oil pipe is provided with the first self-styled interface, and the mouth of pipe place of said oil-in is provided with the second self-styled interface that matches with the said first self-styled interface;
The mouth of pipe place of said second contaminated oil pipe and the second new oil pipe is provided with the 3rd self-styled interface, and the mouth of pipe place of said oil-out is provided with the four selfs sealing-in mouth that matches with the said the 3rd self-styled interface.
Preferably, said coarse filter element is specially the stainless steel coarse filter element, and said smart filter core is specially the gradually close type filter core of colleges and universities.
Preferably, said oil pump is provided with the power supply that can carry out fault-phase protection.
Preferably, said power supply comprises first phase sequence relay, second phase sequence relay, first thermal relay, second thermal relay, start button, alarm lamp and start button lamp.
When the oil changing device that uses the application embodiment to provide, when sump oil is extracted, can first contaminated oil pipe be connected with oil-in, second contaminated oil pipe is connected with oil-out, utilize three-way valve to make sump oil get into the sump oil passage.And when injecting fresh oil, can the first new oil pipe be connected with oil-in, the second new oil pipe is connected with oil-out, utilize three-way valve to make fresh oil get into the fresh oil passage.Because sump oil gets into different passages with fresh oil, thereby can reduce oil pollution, and then solve a series of problems of bringing because of oil pollution.
Description of drawings
In order to be illustrated more clearly in and to describe prior art and the application's technical scheme, provided the accompanying drawing of prior art and the application's specific embodiment below.Obviously, the accompanying drawing in describing below only is some embodiment of the application, to those skilled in the art, under the prerequisite of not paying creative work, can also obtain other embodiment according to these accompanying drawings.
The oil changing device structural representation that Fig. 1 provides for the application embodiment;
Fig. 2 extracts the sump oil sketch map for the oil changing device that the application embodiment provides;
Fig. 3 injects the fresh oil sketch map for the oil changing device that the application embodiment provides;
The correlation of each parts in the fault-phase protection power supply that Fig. 4 provides for the application embodiment, with and and miscellaneous part between the sketch map of relation.
Embodiment
The accompanying drawing that will combine the application embodiment below carries out clear, intactly description to the technical scheme among the application embodiment, and obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those skilled in the art are not paying the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the application's protection.
The application embodiment provides a kind of oil changing device, and referring to Fig. 1, it comprises contaminated oil pipe, new oil pipe at least, and the oil-in 001, the coarse filter element 002 that connect in order, takes out notes machine and oil-out 008.
Wherein, contaminated oil pipe comprises first contaminated oil pipe and second contaminated oil pipe, and new oil pipe comprises the first new oil pipe and the second new oil pipe.Contaminated oil pipe, new oil pipe can be deposited with different suitcase respectively, and convenient access, clean and tidy increases operating efficiency.
Take out the notes machine and comprise oil pump 003, three-way valve 006, sump oil passage and fresh oil passage at least;
First port of oil pump 003 connects coarse filter element 002, and second port of oil pump 003 is connected with first port of three-way valve 006; The bottom of oil pump 003 can install universal front-wheel additional, and is mobile more flexible to make.
Second port of three-way valve 006 is connected with first port of sump oil passage, and the 3rd port of three-way valve is connected with first port of fresh oil passage;
Second port of sump oil passage, and second port of fresh oil passage all is connected with oil-out.
Still see also Fig. 1, in other embodiment of the application, between second port of oil pump 003 and first port of three-way valve 006, also be disposed with the pressure controller 004 and Pressure gauge 007 that are connected.During operation, can when pressure anomaly, close oil pump, thereby avoid each part in the oil changing device to damage through pressure controller and Pressure gauge to carrying out the pressure monitoring protection in the whole oil changing device because of hypertonia.
In addition, still see also Fig. 1, the fresh oil passage can comprise the unidirectional valve 009 and smart filter core 005 that is connected at least, and the sump oil passage can comprise connecting pipeline at least.
More specifically, above-mentioned coarse filter element 002 specifically can be the stainless steel coarse filter element, and smart filter core 005 specifically can be the gradually close type filter core of colleges and universities.
When stating oil changing device in the use, when sump oil is extracted, see also Fig. 2; Can first contaminated oil pipe 201 be connected with oil-in; Second contaminated oil pipe 202 is connected with the pipeline end of oil-out 008, three-way valve 006 is switched to the sump oil passage, close unidirectional valve 009; Open oil pump 003, sump oil is along the path flow of oil-in 001 → coarse filter element 002 → oil pump 003 → pressure controller 004 and Pressure gauge 007 → triple valve 006 → oil-out 008.Like this, the sump oil in the loaded tap switch oil chamber will be evacuated in the waste oil bucket through the sump oil passage.
And when injecting fresh oil, referring to Fig. 3, the first new oil pipe 301 is connected with the pipeline end of oil-in 001, the second new oil pipe 302 is connected with oil-out 008, three-way valve 006 is switched to the fresh oil passage, open unidirectional valve 009, open oil pump 003.Then fresh oil will be along the path flow of oil-in 001 → coarse filter element 002 → oil pump 003 → pressure controller 004 and Pressure gauge 007 → triple valve 006 → smart filter core 005 → unidirectional valve 009 → oil-out 008.Like this, can be injected on load tap changer through the fresh oil passage indoor for the fresh oil in the Barrels of New Oil.
In addition; In the application embodiment; Adopt coarse filter element and smart filter core that fresh oil is carried out double medium filtration, thereby guarantee that filter effect can reach requirement, and can reduce particle (moisture) and bubble in the insulating oil in the on load tap changer effectively; Thereby raising puncture voltage, and the effect that plays the protection oil pump and prolong the useful life of filter element.
To sum up, the oil changing device that the application provided, three-way valve 006 capable of using make fresh oil get into the fresh oil passage, make sump oil get into the sump oil passage.Because sump oil gets into different passages with fresh oil, thereby can realize physical isolation, reduces oil pollution, and then solve a series of problems of bringing because of oil pollution.
Pipeline used in the prior art is open plastics leather hose.Because the plastic skin pipe range phase is exposed in the air, the mouth of pipe is prone to aging, and therefore interface oil impregnate incident often takes place.
For addressing the above problem; In the application's preferred embodiment; Mouth of pipe place at first contaminated oil pipe 201 and the first new oil pipe 301 can be provided with the first self-styled interface respectively, and the mouth of pipe place of oil-in 001 is provided with the second self-styled interface that matches with the above-mentioned first self-styled interface;
Same, the mouth of pipe place of second contaminated oil pipe 202 and the second new oil pipe 302 also can be respectively arranged with the 3rd self-styled interface, and the mouth of pipe place of oil-out 008 can be provided with the four selfs sealing-in mouth that matches with the above-mentioned the 3rd self-styled interface.
The principle of the above-mentioned first self-styled interface, the second self-styled interface is similar to public access mouth and maternal interface.The first self-styled interface, can realize being tightly connected when the second self-styled interface kit uses, when using separately, but also line up seals.And the principle of the 3rd self-styled interface, four selfs sealing-in mouth is also similar with the first self-styled interface, the second self-styled interface.
Owing to installed self-styled interface at mouth of pipe place additional, thereby reduced the generation of oil impregnate incident with sealing and self-styled effect.
Above-mentioned self-styled interface specifically can be the quick crossover sub of stainless steel, and the quick crossover sub of stainless steel has the characteristics of machine worker intensity height, good airproof performance.More specifically, the quick crossover sub of above-mentioned stainless steel can be stainless steel ball valve.
To introduce oil pump among the application and pressure controller below.
Oil pump mainly is made up of motor, contactor and sliding vane rotary pump.The power supply that can carry out fault-phase protection can be set on it,, protect filter core and the injury-free purpose of oil pump thereby reach to prevent motor counter-rotating or phase-deficient operation.
Referring to Fig. 4, this fault-phase protection power supply can comprise the first phase sequence relay PR01-1, the second phase sequence relay PR01-2, the first thermal relay FR01-1, the second thermal relay FR01-2, start button SB01, alarm lamp and start button lamp.
See also Fig. 4 equally, each parts correlation in the power supply, and following with the relation of miscellaneous part:
The second thermal relay FR01-2, the second phase sequence relay PR01-2 and alarm lamp constitute a circuit branch (first circuit branch); In this circuit branch; After the second thermal relay FR01-2 and the second phase sequence relay PR01-2 are in parallel, be in series with alarm lamp;
The contactor KM01 of the first phase sequence relay PR01-1, the first thermal relay FR01-1, start button SB01, oil pump, start button lamp and pressure controller SP01 constitute another circuit branch (second circuit branch road); In this branch road; Contactor KM01 and start button lamp are in parallel, and the first phase sequence relay PR01-1, start button SB01, the first thermal relay FR01-1 and the contactor KM01 and the start button lamp that are in parallel are in series.Among the first phase sequence relay PR01-1, start button SB01 and the first thermal relay FR01-1 three, if having one breaks down/not closed, then the second circuit branch road will break off, and oil pump also can't start;
After energising, under the normal condition, the second phase sequence relay PR01-2 is in normally open, and the first phase sequence relay PR01-1 is in normally off.
The course of work of above-mentioned two circuit branch is following:
After inserting 380V * 3 power supplys; The first phase sequence relay PR01-1 self check, normal like the first phase sequence relay PR01-1 self check, and the first thermal relay FR01-1 is also just often; The second thermal relay FR01-2 and the second phase sequence relay PR01-2 are in normally open, and alarm lamp extinguishes.
After pressing start button SB01, whether pressure controller SP01 inspection pressure is normal, under normal (the not exceeding set point) situation of pressure; Pressure controller SP01 is in normally off; The start button lamp is lighted, contactor KM01 adhesive, the motor operate as normal of oil pump.
Like phase sequence anti-phase or phase shortage, then the first phase sequence relay PR01-1 self check is undesired, gets into off-state, and the second thermal relay FR01-2 and the second phase sequence relay PR01-2 get into closure state, and then alarm lamp is lighted.After adjustment phase sequence, first and/or second thermal relay resetted, alarm lamp extinguished.
If pressure controller judges pressure and exceed set point, then pressure controller can make contactor be in the state of adhesive, release, and then oil pump is in open, stop state can't operate as normal.Pressure indication on the external pressure table also raises.Whether the valve that at this moment, can check each pipeline closes phenomenon.
In other embodiment of the application, above-mentioned oil changing device also can comprise the flow rate transducer.This transducer can be installed in oil-out pipeline end, or oil-in pipeline end.More specifically, above-mentioned flow rate transducer can be several display type flow rate transducers.Above-mentioned several display type flow rate transducer outward appearance can be circle, and the numeral on it shows divides two row to show different data.Wherein, the total flow data that first row shows are promptly taken out oiling calculating from being mounted to oil changing device, and what second row showed is present flow rate, the flow that promptly oil changing device is current when taking out oiling.
Except sump oil extraction, the fresh oil that is used for on-load tap changers of transformers injected, above-mentioned oil changing device also can be used for oiling and filters and circulating filtration.
So-called oiling is filtered and is meant, when filler tank is treated in the oil adding, added oil is filtered.So-called circulating filtration is meant, the oil of a certain Fuel Tanking Unit stored is filtered.
Refueling when filtering: the oil-in of the oil changing device that the application embodiment is provided inserts in the fueller or with fueller and joins, and the oil-out of oil changing device is inserted treat filler tank or join with the oil filler of treating filler tank;
When carrying out circulating filtration, the oil-in of the oil changing device that the application embodiment is provided and the oil-out of Fuel Tanking Unit join, and the oil-out of oil changing device and the oil-in of Fuel Tanking Unit are joined.
No matter being to refuel to filter or circulating filtration, all is to utilize coarse filter element or coarse filter element+coarse filter element to filter.Therefore, can as required above-mentioned three-way valve be pulled the relevant position, make sump oil passage or the conducting of fresh oil passage, operation afterwards is just basic identical:
Energized: attaching plug is inserted socket, energized (380V * 3 three-phase and four-lines);
Start: the stainless steel ball valve of opening oil changing device into and out of hydraulic fluid port.As do not have misphase and the excessive situation of pressure, and press start button SB01, the start button lamp is lighted, and oil changing device begins operate as normal;
Shut down: press start button SB01 again, the start button lamp goes out, and oil changing device quits work.
System evacuation: make oil-in break away from the liquid level of oil, press start button SB01, thereby with oil changing device inside and the inner trapped fuel sucking-off of pipeline.
At last, close the stainless steel ball valve into and out of hydraulic fluid port of oil changing device, with the flexible pipe dismounting into and out of oil port of oil changing device.
Need to prove that each embodiment adopts the mode of going forward one by one to describe in this specification, what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the application.It will be easy to do concerning those skilled in the art that the non-creativeness of these embodiment is revised, and defined General Principle can realize under the situation of spirit that does not break away from the application or scope in other embodiments among this paper.Therefore, the application will can not be restricted to these embodiment shown in this paper, but will protect principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. an oil changing device is characterized in that, comprises contaminated oil pipe, new oil pipe at least, and the oil-in, the coarse filter element that connect in order, takes out notes machine and oil-out;
Said contaminated oil pipe comprises first contaminated oil pipe and second contaminated oil pipe, and said new oil pipe comprises the first new oil pipe and the second new oil pipe;
The said notes machine of taking out comprises oil pump, three-way valve, sump oil passage and fresh oil passage at least;
Wherein:
First port of said oil pump connects said coarse filter element, and second port of said oil pump is connected with first port of said three-way valve;
Second port of said three-way valve is connected with first port of said sump oil passage, and the 3rd port of said three-way valve is connected with first port of said fresh oil passage;
Second port of said sump oil passage, and second port of said fresh oil passage all is connected with said oil-out.
2. oil changing device as claimed in claim 1 is characterized in that, also comprises the flow rate transducer.
3. oil changing device as claimed in claim 1 is characterized in that, between second port of said oil pump and first port of said three-way valve, also is disposed with the pressure controller and the Pressure gauge that are connected.
4. oil changing device as claimed in claim 1 is characterized in that, also comprises the universal front-wheel that is installed on said oil pump bottom.
5. like each described oil changing device of claim 1-4, it is characterized in that said fresh oil passage comprises unidirectional valve and the smart filter core passage that is connected at least.
6. like the arbitrary described oil changing device of claim 1-4, it is characterized in that:
The mouth of pipe place of said first contaminated oil pipe and the first new oil pipe is provided with the first self-styled interface, and the mouth of pipe place of said oil-in is provided with the second self-styled interface that matches with the said first self-styled interface;
The mouth of pipe place of said second contaminated oil pipe and the second new oil pipe is provided with the 3rd self-styled interface, and the mouth of pipe place of said oil-out is provided with the four selfs sealing-in mouth that matches with the said the 3rd self-styled interface.
7. oil changing device as claimed in claim 5 is characterized in that said coarse filter element is specially the stainless steel coarse filter element, and said smart filter core is specially the gradually close type filter core of colleges and universities.
8. like the arbitrary described oil changing device of claim 1-4, it is characterized in that said oil pump is provided with the fault-phase protection power supply.
9. oil changing device as claimed in claim 8 is characterized in that, said fault-phase protection power supply comprises first phase sequence relay, second phase sequence relay, first thermal relay, second thermal relay, start button, alarm lamp and start button lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296854.XA CN102779621B (en) | 2012-08-20 | 2012-08-20 | Oil changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296854.XA CN102779621B (en) | 2012-08-20 | 2012-08-20 | Oil changing device |
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| CN102779621A true CN102779621A (en) | 2012-11-14 |
| CN102779621B CN102779621B (en) | 2015-10-07 |
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| CN201210296854.XA Active CN102779621B (en) | 2012-08-20 | 2012-08-20 | Oil changing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016292A (en) * | 2014-06-18 | 2014-09-03 | 周紫阳 | Hydraulic oil sucking and conveying device |
| CN104121468A (en) * | 2014-07-10 | 2014-10-29 | 中科华核电技术研究院有限公司 | Lubricating oil replacing device for nuclear power plant |
| CN104134520A (en) * | 2014-07-25 | 2014-11-05 | 广州供电局有限公司 | Refueling unit and refueling method for distribution transformer |
| CN111063519A (en) * | 2019-11-25 | 2020-04-24 | 广西电网有限责任公司柳州供电局 | Oil changing device applied to oilpaper capacitive type sleeve |
| CN111509601A (en) * | 2020-04-01 | 2020-08-07 | 嘉兴市恒光电力建设有限责任公司 | Transformer on-load tap-changer maintenance operation platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016292A (en) * | 2014-06-18 | 2014-09-03 | 周紫阳 | Hydraulic oil sucking and conveying device |
| CN104121468A (en) * | 2014-07-10 | 2014-10-29 | 中科华核电技术研究院有限公司 | Lubricating oil replacing device for nuclear power plant |
| CN104134520A (en) * | 2014-07-25 | 2014-11-05 | 广州供电局有限公司 | Refueling unit and refueling method for distribution transformer |
| CN111063519A (en) * | 2019-11-25 | 2020-04-24 | 广西电网有限责任公司柳州供电局 | Oil changing device applied to oilpaper capacitive type sleeve |
| CN111509601A (en) * | 2020-04-01 | 2020-08-07 | 嘉兴市恒光电力建设有限责任公司 | Transformer on-load tap-changer maintenance operation platform |
Also Published As
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|---|---|
| CN102779621B (en) | 2015-10-07 |
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