CN101457154A - Waste kerosene regeneration method in transformer kerosene vapor phase drying process - Google Patents
Waste kerosene regeneration method in transformer kerosene vapor phase drying process Download PDFInfo
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- CN101457154A CN101457154A CNA2008100802435A CN200810080243A CN101457154A CN 101457154 A CN101457154 A CN 101457154A CN A2008100802435 A CNA2008100802435 A CN A2008100802435A CN 200810080243 A CN200810080243 A CN 200810080243A CN 101457154 A CN101457154 A CN 101457154A
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Abstract
The present invention discloses a waste kerosene regenerating method in the drying process of transformer kerosene oil gas, which is used to solve waste kerosene discharge problem in manufacturing process. The technical project is as following: utilize a waste kerosene regenerative device to complete regeneration operation, wherein the waste kerosene regenerative device is composed by a vacuum drying tank, a waste kerosene tank, a buffer tank, a pure kerosene tank, a gathering tank and a condensator. The make-break among the tanks is realized by valves mounted in the pipe; the regeneration operation includes steps of preparation, distil, separation and reclamation etc. The three are separated according to theory of different oil-water specific gravity and different vaporization heat of kerosene and transformer oil, and the separated kerosene is reused to reduce waste of raw material, low down production cost and avoids environment pollution; the equipment can be used as kerosene drying apparatus at the same time; drying and regeneration can be done with one set of equipment without adding other accessory equipments or incidental expenses; the process is simple and easy to operate.
Description
Technical field
The present invention relates to a kind of waste coal regeneration method, utilize Kerosene Vapour-Phase Drying Device that the waste coal oil that produces in self working process is carried out the processing method that purifying treatment is utilized again specifically, belong to the transformer technology field.
Background technology
Kerosene Vapour-Phase Drying Device is that present transformer industry is applied to coil or a kind of comparatively advanced specific equipment of transformer body exsiccant.The basic comprising of this equipment comprises a vacuum drying tank and waste coal oil tank.Its working process is as follows: need withering coil or transformer body insert in the vacuum drying tank, liquid phase kerosene is sent to vacuum drying tank, built-in vaporizer in the vacuum drying tank is with the kerosene heating evaporation, form the kerosene steam, the device body is heated, device body temperature is constantly increased, and the interior moisture content of insulating part constantly evaporates and is taken away; After reaching the setup parameter requirement, stop to carry kerosene, kerosene in the vacuum drying tank and moisture content are taken away; Last further gas clean-up pumps the remaining moisture content and the kerosene of device body, thereby reaches the purpose of finish-drying device body.In above-mentioned treating processes, enter collector behind the kerosene process filter impurity screening, in collector, recycle behind the separation moisture.When handling the transformer winding device body of oil-impregnated,, form waste coal oil because the solvency action of kerosene can dissolve away immersion oil coil or device transformer oil on one's body, thereby make the kerosene that is soaked with impurity enter sump tank.Equipment is cumulative through the waste coal oil that contains moisture, impurity and transformer oil that accumulates in the sump tank after the dry operation repeatedly, has both caused the waste of kerosene, has polluted environment again.
Summary of the invention
Technical problem to be solved by this invention is to overcome defective in the prior art, the waste coal regeneration method in a kind of transformer kerosene oil-gas phase drying process is provided, and this method can significantly reduce the transformer dry cost, avoid waste, is beneficial to environmental protection.
The alleged problem of the present invention is solved by following technical scheme:
Waste coal regeneration method in a kind of transformer kerosene oil-gas phase drying process, it utilizes a waste coal Decvice for regeneration of oils to finish regenerative operation, and its concrete device structure and processing step are:
1.. the waste coal Decvice for regeneration of oils
Described waste coal Decvice for regeneration of oils is made up of vacuum drying tank, waste coal oil tank, surge tank, clean coal oil tank, holding tank and condenser, between described surge tank and the waste coal oil tank, be equipped with waste coal oil path between surge tank and the vacuum drying tank, wherein, the waste coal oil in the waste coal oil tank enters surge tank through waste coal oil line, first valve, first fine filtrator and second fine filtrator, second valve in parallel; Waste coal oil in the surge tank enters vacuum drying tank through the 4th valve, second dehvery pump, first fine filtrator and second fine filtrator in parallel; Be provided with distillation kerosene oil-gas path between described vacuum drying tank and the holding tank, the distillation kerosene oil-gas by the road, condenser, valve enter holding tank; Holding tank and and the clean coal oil tank between be provided with clean coal oil path, the clean coal oil in the described holding tank is communicated with the clean coal oil tank by first dehvery pump, clean coal oil line; Be provided with transformer oil in the vacuum drying tank bottom and discharge outlet; Valve realization break-make each other by installing in the pipeline between each jar;
2.. regenerative operation carries out as follows:
A. prepare: the kerosene that retains in surge tank, the holding tank is squeezed into the clean coal oil tank; Open oil drain pump and valve between waste coal oil tank and the surge tank successively, waste coal oil is sent in the surge tank;
B. distillation: the distillation temperature of setting vaporizer and vacuum-drying tank skin is 135 ℃～150 ℃, opens valve and pump between surge tank and the vacuum drying tank, and the waste coal oil in the surge tank enters distillation in the vacuum drying tank;
C. separate: waste coal oil in the vacuum drying tank and moisture become liquid state through distillation vaporization back by condenser condenses, flow to the interior standing separation of holding tank, and wherein water is separated with kerosene, and the upper strata is a kerosene, and lower floor is a water;
D. reclaim: upper strata kerosene in the holding tank is entered to reclaim in the clean coal oil tank use, lower layer of water is handled by sewage discharge.
Waste coal regeneration method in the above-mentioned transformer kerosene oil-gas phase drying process, described distilation steps finish the collection and treatment separately behind the impurity after filtration of the transformer oil that is not vaporized in the final vacuum drying chamber.
Waste coal regeneration method in the above-mentioned transformer kerosene oil-gas phase drying process, the liquid surface height controlling in the described preparation step in the surge tank is at 1200mm.
Waste coal regeneration method in the above-mentioned transformer kerosene oil-gas phase drying process, water, the isolating time of repose of kerosene were greater than 1 hour in the described separating step.
The present invention is directed to the waste coal oil emission problem that produces in the existing kerosene oil-gas phase drying process improves, this method is thoroughly separated the kerosene in the waste coal oil, water and transformer oil according to the different principles different with the transformer oil vaporization heat with kerosene of profit proportion, and isolated kerosene is utilized again.The beneficial effect of present method is: 1. reuse by the kerosene that extracts in the waste coal oil, reduce wastage of material, improve dry mass, reduce production costs and avoid waste coal oil exhaust emission environment; 2. this technology equipment used can be used as Kerosene Vapour-Phase Drying Device simultaneously, adopts a set of equipment to finish dry and two kinds of operations of regeneration, need not to add other utility appliance again, does not increase additional expense; 3. technological process is simple, easily operation.
Description of drawings
Fig. 1 is a principle of the invention synoptic diagram.
Each label is expressed as follows in the accompanying drawing: 1. vacuum drying tank; 2. vaporizer; 3. condenser; 4. viewing window A; 5. clean coal oil tank; 6. holding tank; 7. waste coal oil tank; 8. first dehvery pump; 9. second dehvery pump; 10. first valve; 11. second valve; 12. coarse filter; 13. the 3rd valve; 14. first fine filtrator; 15. second fine filtrator; 16. the 4th valve; 17. surge tank; 18. clean coal oil line; 19. waste coal oil line; 20. viewing window B; 21. steam-pipe.
Embodiment
The present invention is the method that the waste coal oil that will produce in the Kerosene Vapour-Phase Drying Device technology utilizes again, its principle is according to the kerosene principle different with the transformer oil vaporization heat kerosene to be separated with transformer oil, utilizes profit proportion difference that kerosene is thoroughly separated from mixture again.The waste coal oil that is produced when kerosene oil-gas phase drying process ordinary production can be to the waste coal oil purifying treatment of regenerating after the waste coal oil tank is filled with.
Details are as follows to processing method of the present invention and specific implementation process below in conjunction with accompanying drawing:
1. kerosene oil-gas phase drying process is out of service, and all parts of equipment are in off working state.The kerosene that retains in surge tank 17, the holding tank 6 is squeezed into clean coal oil tank 5.Wherein the kerosene in the holding tank is squeezed into the clean coal oil tank through first dehvery pump 8, clean coal oil line 18, kerosene in the surge tank is squeezed into clean coal oil tank (the clean coal oil tank is not participated in product treatment or kerosene still-process directly for storing the kerosene effect) through second dehvery pump 9, clean coal oil line 18.
2. open first valve 10 (operated pneumatic valve), operated pneumatic valve housing successively, press second valve 11 (operated pneumatic valve) by force, pneumatic button turns clockwise, and valve 11 is opened, and waste oil slowly enters surge tank.Waste coal oil enters surge tank through waste coal oil line 19, first valve 10, first fine filtrator 14, second fine filtrator 15, second valve 11 etc. in the waste coal oil tank, when the surge tank liquid level reaches 1200mm, close each valve and oil drain pump, stops oiling.
3. monitoring device state, set 135 ℃ of vaporizer 2 and vacuum-drying tank wall temperatures, set 150 ℃ of distillation end temps, open valve and pump between surge tank and the vacuum drying tank, make the waste coal oil in the surge tank enter distillation in the vacuum drying tank 1 through the 4th valve 16, second dehvery pump 9, first fine filtrator 14, second fine filtrator 15, viewing window B20 etc.
4. under the condition of 135～150 ℃ of vacuum-drying tank wall temperatures, vacuum tightness 7mbar, kerosene in the waste coal oil and the vaporization of water absorption heat become steam and are condensed into liquid flow to holding tank 6 by steam-pipe 21, condenser 3, viewing window A4, transformer oil can not change under this condition, still keeps liquid.When no kerosene outflow and surge tank liquid level among the viewing window A4 did not have considerable change in 30 minutes, illustrate that distillation finishes.After distilation steps finished, the transformer oil that is not vaporized in the vacuum drying tank 1 was emitted collection and treatment by coarse filter 12, the 3rd valve 13 etc.
5. liquid kerosene and water is respectively organism and inorganics compatible phenomenon can not take place in the holding tank, and proportion difference, through afterwards kerosene and the water natural layering of leaving standstill more than 1 hour, kerosene last water below, kerosene in the holding tank is discharged to the clean coal oil tank to be recycled, water in the holding tank is discharged by the valve of its bottom, by sewage disposal.
Repeat above process, finish until the sump tank waste oil treatment.
When this device carries out the drying operation of transformer insulated or device body, need the job order or the time of each tank body of redesign, valve, dehvery pump, condenser, vaporizer to get final product.
Claims (4)
1. the waste coal regeneration method in the transformer kerosene oil-gas phase drying process is characterized in that it utilizes a waste coal Decvice for regeneration of oils to finish regenerative operation, and its concrete device structure and processing step are:
1.. the waste coal Decvice for regeneration of oils
Described waste coal Decvice for regeneration of oils is made up of vacuum drying tank (1), waste coal oil tank (7), surge tank (17), clean coal oil tank (5), holding tank (6) and condenser (3), between described surge tank and the waste coal oil tank, be equipped with waste coal oil path between surge tank and the vacuum drying tank, wherein, the waste coal oil in the waste coal oil tank enters surge tank through waste coal oil line (19), first valve (10), first fine filtrator (14) and second fine filtrator (15), second valve (11) in parallel; Waste coal oil in the surge tank enters vacuum drying tank through the 4th valve (16), second dehvery pump (9), first fine filtrator (14) and second fine filtrator (15) in parallel; Be provided with distillation kerosene oil-gas path between described vacuum drying tank and the holding tank, (21), condenser (3), valve enter holding tank to the distillation kerosene oil-gas by the road; Holding tank and and the clean coal oil tank between be provided with clean coal oil path, the clean coal oil in the described holding tank is communicated with the clean coal oil tank by first dehvery pump (8), clean coal oil line (18); Be provided with transformer oil in the vacuum drying tank bottom and discharge outlet; Valve realization break-make each other by installing in the pipeline between each jar;
2.. regenerative operation carries out as follows:
A. prepare: the kerosene that retains in surge tank, the holding tank is squeezed into the clean coal oil tank; Open oil drain pump and valve between waste coal oil tank and the surge tank successively, waste coal oil is sent in the surge tank;
B. distillation: the distillation temperature of setting vaporizer and vacuum-drying tank skin is 135 ℃～150 ℃, opens valve and pump between surge tank and the vacuum drying tank, and the waste coal oil in the surge tank enters distillation in the vacuum drying tank;
C. separate: waste coal oil in the vacuum drying tank and moisture become liquid state through distillation vaporization back by condenser condenses, flow to the interior standing separation of holding tank, and wherein water is separated with kerosene, and the upper strata is a kerosene, and lower floor is a water;
D. reclaim: upper strata kerosene in the holding tank is entered to reclaim in the clean coal oil tank use, lower layer of water is handled by sewage discharge.
2. the waste coal regeneration method in the transformer kerosene oil-gas phase drying process according to claim 1 is characterized in that: described distilation steps finishes the collection and treatment separately behind the impurity after filtration of the transformer oil that is not vaporized in the final vacuum drying chamber.
3. the waste coal regeneration method in the transformer kerosene oil-gas phase drying process according to claim 1 and 2 is characterized in that the surge tank liquid level is 1200mm in the described preparation step.
4. the waste coal regeneration method in the transformer kerosene oil-gas phase drying process according to claim 3 is characterized in that water, the isolating time of repose of kerosene were greater than 1 hour in the described separating step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100802435A CN101457154B (en) | 2008-12-29 | 2008-12-29 | Waste kerosene regeneration method in transformer kerosene vapor phase drying process |
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| CN2008100802435A CN101457154B (en) | 2008-12-29 | 2008-12-29 | Waste kerosene regeneration method in transformer kerosene vapor phase drying process |
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| CN101457154A true CN101457154A (en) | 2009-06-17 |
| CN101457154B CN101457154B (en) | 2012-07-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054577A (en) * | 2009-10-30 | 2011-05-11 | 特变电工衡阳变压器有限公司 | System and method for realizing kerosene vapor-phase drying to on-site assembly transformer |
| CN103357198A (en) * | 2012-04-06 | 2013-10-23 | 天津市艾佰恩机电设备有限公司 | Passive vacuum oil purifying system |
| CN106710809A (en) * | 2015-08-12 | 2017-05-24 | 特变电工沈阳变压器集团有限公司 | Vapor-phase drying system and processing method of on-site +/-800KV converter transformer in power station |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592647Y (en) * | 2003-04-25 | 2003-12-17 | 谢福胜 | Waste plastic oil-refining filter |
| CN101245256A (en) * | 2007-02-15 | 2008-08-20 | 上海新金桥工业废弃物管理有限公司 | Recovery processing technique of waste mineral oil |
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2008
- 2008-12-29 CN CN2008100802435A patent/CN101457154B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102054577A (en) * | 2009-10-30 | 2011-05-11 | 特变电工衡阳变压器有限公司 | System and method for realizing kerosene vapor-phase drying to on-site assembly transformer |
| CN102054577B (en) * | 2009-10-30 | 2014-04-30 | 特变电工衡阳变压器有限公司 | System and method for realizing kerosene vapor-phase drying to on-site assembly transformer |
| CN103357198A (en) * | 2012-04-06 | 2013-10-23 | 天津市艾佰恩机电设备有限公司 | Passive vacuum oil purifying system |
| CN106710809A (en) * | 2015-08-12 | 2017-05-24 | 特变电工沈阳变压器集团有限公司 | Vapor-phase drying system and processing method of on-site +/-800KV converter transformer in power station |
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| CN101457154B (en) | 2012-07-04 |
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Owner name: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131225 |
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Effective date of registration: 20131225 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071051 Jin Di garden complex building, 128 chemical fiber road north, Baoding, Hebei Patentee before: Baoding Tianwei Group Co., Ltd. |