CN102371085A - Vacuum oil-gas separator used for transformer on-line monitoring - Google Patents
Vacuum oil-gas separator used for transformer on-line monitoring Download PDFInfo
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- CN102371085A CN102371085A CN2010102532940A CN201010253294A CN102371085A CN 102371085 A CN102371085 A CN 102371085A CN 2010102532940 A CN2010102532940 A CN 2010102532940A CN 201010253294 A CN201010253294 A CN 201010253294A CN 102371085 A CN102371085 A CN 102371085A
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Abstract
The invention provides a vacuum oil-gas separator used for transformer on-line monitoring. The separator comprises: an oil-gas separation chamber connected with transformer body oil and a gas detection unit, a vacuum-pumping device used for vacuum-pumping of the separation chamber, an ultrasonic generator installed in the oil-gas separation chamber and a cold trap connecting the oil-gas separation chamber and the gas detection unit. The vacuum oil-gas separator of the invention integrates circulating sampling, vacuum ultrasonic degassing and cold trapping, thus thoroughly avoiding oil gas pollution on a chromatographic column and realizing a maintenance-free system really. With the advantages of low cost, long service life and good stability, etc., the vacuum oil-gas separator provided in the invention has obviously higher effect than traditional degassing modes.
Description
Technical field
The present invention relates to the transformer online monitoring technology, relate in particular to a kind of vacuum oil air separation that is used for chromatography online monitoring system for transformer oil.
Background technology
At present, the transformer oil chromatographic on-line monitoring is used widely in power industry.This monitoring pattern at first must be realized effectively breaking away to the failure gas that is dissolved in the transformer oil, again the failure gas of separating is carried out chromatography as appearance gas.Traditional degassing mode has: methods such as the membrane equilibrium degassing, the vibration degassing, vacuum outgas.The membrane equilibrium degassing time is long, degassing efficiency is low; The vibration degassing is the incomplete degassing under certain constant temperature, and the time is short, efficient is low, poor repeatability, is subject to condition effect such as temperature, pressure, concentration; The vacuum outgas time is short, efficient is high, but the vacuum of the pure vacuum degassing receives the influence of vacuum plant complexity to be difficult for guaranteeing, influences the system stability performance.
Through the retrieval of prior art is found, number of patent application is 98241936.8, Granted publication number a kind of for having put down in writing in the Chinese utility model patent specification of CN2347169 " the transformer oil chromatographic analysis is with full-automatic degassing thermostat "; Number of patent application is to have put down in writing a kind of " self adaptation oil chromatography vacuum degasser " in the Chinese utility model patent specification of CN201454167.U 200920075510.X, Granted publication number.The degassing pattern of being put down in writing in the middle of the above-mentioned documents is not all carried out post processing to the failure gas of separating; Inevitably the oil vapour pollution problem with the laboratory chromatographic technique is brought in the on-line monitoring system, can't satisfy on-line monitoring system good stability, long, non-maintaining specification requirement of life-span.
Summary of the invention
The objective of the invention is to the defective to prior art, provide that a kind of cost is low, life-span length, good stability, the vacuum oil air separation that is used for transformer online monitoring that efficient is high.
For solving the problems of the technologies described above; Technical scheme below the present invention has adopted: design a kind of vacuum oil air separation that is used for transformer online monitoring; Comprise: the Oil-gas Separation chamber that links to each other with transformer body oil and gas detection cell; Be used for vacuum extractor that said Oil-gas Separation chamber is vacuumized, be arranged at the supersonic generator of said Oil-gas Separation chamber and be connected said Oil-gas Separation chamber and said gas detection cell between cold-trap.
Said cold-trap has comprised condenser and the radiating subassembly that is arranged on this condenser outside; Said condenser inside is provided with condensation chamber and cooling assembly; Said condensation chamber links to each other with the divided gas flow outlet of said Oil-gas Separation chamber through air inlet, and this condensation chamber links to each other with said gas detection cell through the gas outlet.Said condensation chamber also realizes that through vacuum orifice and condensation chamber vacuum the unit links to each other, and links to each other with the condensation chamber compress cell through boost port.Be provided with the air inlet magnetic valve between said air inlet and the outlet of said divided gas flow; Be provided with the magnetic valve of giving vent to anger between said gas outlet and the said gas detection cell; Be provided with boost electromagnetic valve between said boost port and the said condensation chamber compress cell, said vacuum orifice and said condensation chamber vacuum realize being provided with between the unit and vacuumize magnetic valve.The CKD through type two-way valve that said magnetic valve all can adopt Japan happiness Kai Li company to produce.Said condensation chamber vacuum realizes that the unit can adopt diaphragm-type vacuum pump, and for example German triumphant grace inspires confidence in the KNF diaphragm-type vacuum pump that pump industry group company produces.Said condensation chamber compress cell can inject high purity nitrogen in condensation chamber, so that the oil gas analysis is sampled smoothly.
Said cooling assembly has comprised temperature sensor, semiconductor chilling plate, heat-insulation layer and singlechip controller.Said radiating subassembly has comprised fin and fan.Said semiconductor chilling plate can be two groups of single crystal semiconductor refrigerators, and its size can be 40*40mm; Said heat-insulation layer can be made up of thermal insulation foaming agent and stainless steel casing.
Also be provided with oily temperature control unit on the wall body of said Oil-gas Separation chamber, this oil temperature control unit has comprised heating rod, temperature sensor and temperature controller.Said heating rod can adopt the flatiron thermal resistance of 20W, and said temperature sensor can adopt RTD (PT100) temperature sensor, the TTM-1 temperature controller that said temperature controller can adopt Japanese Dong Bang company to produce.
Said supersonic generator is fixed on the bottom of said Oil-gas Separation chamber.The ultrasonic transducer that this supersonic generator can adopt frequency sweep circuit to control, its frequency can be 40kHz.
The oil inlet end of said Oil-gas Separation chamber is provided with oil pump and inlet valve, and oil revolving end is provided with oil return valve; The inside of this Oil-gas Separation chamber has grease chamber and air chamber, forms pasta conical vacuum space between said grease chamber and the air chamber, gets into cold-trap to prevent oil because of device inclined, and said air chamber links to each other with said cold-trap through the divided gas flow outlet.
The said vacuum extractor that is used for the Oil-gas Separation chamber is vacuumized can directly seal the stepper motor that is installed on the Oil-gas Separation chamber, and this stepper motor can be the fixedly shaft type bipolar stepping motor of Single-chip Controlling operation.
The degassing of oil-collecting circulating sampling of the present invention, vacuum ultrasonic, cold-trap be in one, and under the rough vacuum condition, break and realize the disengaging of failure gas in the oil in the dissolved gas hole that in solution, is formed by ultrasonic wave; And adopt the cold-trap structure, under the uniform temperature condition, the dissolved gas that spins off is shunk cooling; The C3 of condensation oil dissolved gas and above polymeric carbon chain component; Again the gaseous state component is analyzed, thoroughly avoided the pollution of oil gas, realize that really system is non-maintaining chromatographic column.The present invention has advantages such as cost is low, life-span length, good stability, and effect is apparently higher than the tradition pattern that outgases.
Description of drawings
Fig. 1 is a structural principle sketch map of the present invention.
Fig. 2 is the internal structure sketch map of Oil-gas Separation chamber.
Fig. 3 is the structural principle sketch map of oily temperature control unit.
Fig. 4 is the stereogram of cold-trap.
Fig. 5 is the transverse sectional view of cold-trap shown in Figure 4.
Fig. 6 be cold-trap shown in Figure 4 vertically partly cut open figure.
The specific embodiment
As shown in Figure 1; A kind of vacuum oil air separation of the present invention has comprised Oil-gas Separation chamber 1, stepper motor 2, oily temperature control unit 3, supersonic generator 4, cold-trap 5 etc.; Cold-trap 5 is connected in Oil-gas Separation chamber 1 through admission line 16 respectively; Be connected in gas detection cell 9 through outlet pipe 17, be connected in condensation chamber compress cell 10, and be connected in condensation chamber vacuum realization unit 7 through vacuum lead 19 through pressure pipeline 18.
Referring to Fig. 2; The inside of Oil-gas Separation chamber 1 has grease chamber 110 and air chamber 111; Be formed with the pasta conical vacuum space 112 that is round table-like between grease chamber 110 and the air chamber 111, preventing getting into cold-trap 5 because of device inclined makes oil, air chamber 111 links to each other with cold-trap 5 through divided gas flow outlet 113.Grease chamber 110 is connected with transformer body grease chamber 8 with oil returning tube 12 through inflow pipeline 11, forms closed circuit oil circulating system, and wherein inflow pipeline 11 can adopt Φ 6MM copper tube with oil returning tube 12.Grease chamber 110 also links to each other with stepper motor 2 through steam vent 116; Stepper motor 2 directly seals the top that is installed in Oil-gas Separation chamber 1 through workpiece; Be used for Oil-gas Separation chamber 1 is vacuumized; This stepper motor 2 adopts fixedly shaft type bipolar stepping motor, through designing piston piece certainly, is moved by Single-chip Controlling.Inflow pipeline 11 is provided with oil pump 13 and inlet valve 14, and oil returning tube 12 is provided with oil return valve 15.Oil pump 13 links to each other with the oil-in 114 of grease chamber 110 through inlet valve 14, and oil return valve 15 is directly connected in the oil-out 115 of grease chamber 110, and oil pump 13, oil return valve 15 link to each other with transformer body grease chamber 8.
Referring to Fig. 3, oily temperature control unit 3 is installed on the wall body inside of Oil-gas Separation chamber 1, has comprised heating rod 31, temperature sensor 32 and temperature controller 33 etc.Said heating rod 31 can adopt the flatiron thermal resistance of 20W, and said temperature sensor 32 can adopt RTD (PT100) temperature sensor, the TTM-1 temperature controller that said temperature controller 33 can adopt Japanese Dong Bang company to produce.
Referring to Fig. 1, Fig. 4 to Fig. 6; Cold-trap 5 has comprised condenser 55 and fin that is arranged on these condenser 55 outsides 56 and fan 57; Condenser 55 is a stainless steel workpiece; Its inside is provided with condensation chamber 551 and cooling assembly 6, and condensation chamber 55 links to each other with the divided gas flow outlet 113 of Oil-gas Separation chamber 1 through air inlet 552, links to each other with said gas detection cell 9 through gas outlet 553; Realize that through vacuum orifice 554 and condensation chamber vacuum unit 7 links to each other, link to each other with condensation chamber compress cell 10 through boost port 555.The condensation chamber vacuum realizes that an end of unit 7 is connected in condensation chamber 55, and the other end is communicated with outside atmosphere to carry out exhaust.
Referring to Fig. 6, cooling assembly 6 has comprised temperature sensor 61, semiconductor chilling plate 62, heat-insulation layer 63 and singlechip controller 64.Wherein, semiconductor chilling plate 62 is the single crystal semiconductor refrigerator of two groups of 65W, and it is of a size of 40*40mm; Heat-insulation layer 63 is made up of thermal insulation foaming agent and stainless steel casing.Technological process is: to be sampled as example 10 o'clock sharps: magnetic valve 51,52,53,54 is in closed condition.
9:00 opens inlet valve 14 and oil return valve 15, starts oil pump 13.
9:40 closes inlet valve 14 and oil return valve 15, stops oil pump 13, starts stepper motor 2 simultaneously and vacuumizes, and starts supersonic generator 4.
9:45 opens and vacuumizes magnetic valve 54, starts the condensation chamber vacuum and realizes that unit 7 (vavuum pump) vacuumizes.
9:50 closes and vacuumizes magnetic valve 54, closes down the condensation chamber vacuum and realizes unit 7, starts cold-trap 5 refrigeration simultaneously.
9:55 is closed down supersonic generator 4.
9:56 opens air inlet magnetic valve 51, start stepper motor 2 counter be pushed into the volume of finding time 80% after close down stepper motor 2, close air inlet magnetic valve 51; Start stepper motor 2 and the anti-raw bits that is pushed into, close down stepper motor 2, oily degasification process finishes.
10:00, beginning oil gas sampling analysis flow process.
The present invention can circulate-vacuumize for realization oil under the mode of operation at nobody--the degassing-condensation-sampling analysis flow process.Through simple structure and flow scheme design, significantly reduced the loss of appearance gas, improved accuracy of detection.The use of cold-trap has realized the non-maintaining of this device and even whole detection system.
Need to prove that at last above-described only is preferred implementation of the present invention, concrete model, parameter, implementation step and operating process in the middle of the embodiment can not be interpreted as the restriction to protection domain of the present invention.For the person of ordinary skill of the art, under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. be used for the vacuum oil air separation of transformer online monitoring, comprise:
The Oil-gas Separation chamber that links to each other with transformer body oil and gas detection cell;
Be used for vacuum extractor that said Oil-gas Separation chamber is vacuumized;
It is characterized in that, this vacuum oil air separation also comprised the supersonic generator that is arranged at said Oil-gas Separation chamber and be connected said Oil-gas Separation chamber and said gas detection cell between cold-trap.
2. vacuum oil air separation according to claim 1; It is characterized in that: said cold-trap has comprised condenser and the radiating subassembly that is arranged on this condenser outside; Said condenser inside is provided with condensation chamber and cooling assembly; Said condensation chamber links to each other with the divided gas flow outlet of said Oil-gas Separation chamber through air inlet, and this condensation chamber links to each other with said gas detection cell through the gas outlet.
3. vacuum oil air separation according to claim 2 is characterized in that: said condensation chamber also realizes that through vacuum orifice and condensation chamber vacuum the unit links to each other.
4. vacuum oil air separation according to claim 3 is characterized in that: said condensation chamber also links to each other with the condensation chamber compress cell through boost port.
5. vacuum oil air separation according to claim 4; It is characterized in that: be provided with the air inlet magnetic valve between said air inlet and the outlet of said divided gas flow; Be provided with the magnetic valve of giving vent to anger between said gas outlet and the said gas detection cell; Be provided with boost electromagnetic valve between said boost port and the said condensation chamber compress cell, said vacuum orifice and said condensation chamber vacuum realize being provided with between the unit and vacuumize magnetic valve.
6. vacuum oil air separation according to claim 2 is characterized in that: said cooling assembly has comprised temperature sensor, semiconductor chilling plate, heat-insulation layer and singlechip controller.
7. vacuum oil air separation according to claim 2 is characterized in that: said radiating subassembly has comprised fin and fan.
8. vacuum oil air separation according to claim 1 is characterized in that: also be provided with oily temperature control unit on the wall body of said Oil-gas Separation chamber, this oil temperature control unit has comprised heating rod, temperature sensor and temperature controller.
9. vacuum oil air separation according to claim 1 is characterized in that: said supersonic generator is fixed on the bottom of said Oil-gas Separation chamber.
10. vacuum oil air separation according to claim 1 is characterized in that: the oil inlet end of said Oil-gas Separation chamber is provided with oil pump and inlet valve, and oil revolving end is provided with oil return valve; The inside of this Oil-gas Separation chamber has grease chamber and air chamber, forms pasta conical vacuum space between said grease chamber and the air chamber, and said air chamber links to each other with said cold-trap through the divided gas flow outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010253294.0A CN102371085B (en) | 2010-08-13 | 2010-08-13 | For the vacuum oil air separation of transformer online monitoring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010253294.0A CN102371085B (en) | 2010-08-13 | 2010-08-13 | For the vacuum oil air separation of transformer online monitoring |
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| CN102371085A true CN102371085A (en) | 2012-03-14 |
| CN102371085B CN102371085B (en) | 2016-01-20 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104122350A (en) * | 2014-08-13 | 2014-10-29 | 国家电网公司 | Cold trap device for gas chromatography of transformer insulating oil |
| CN104133026A (en) * | 2014-08-13 | 2014-11-05 | 国家电网公司 | Oil pretreatment degassing method for gas chromatography of transformer insulating oil |
| CN105126391A (en) * | 2015-09-17 | 2015-12-09 | 四川原觉科技有限公司 | Separating device for dissolved gas in oil |
| CN105223277A (en) * | 2015-11-20 | 2016-01-06 | 江苏有能电力自动化有限公司 | A kind of novel transformer oil chromatography on-Line Monitor Device |
| CN105223297A (en) * | 2015-11-20 | 2016-01-06 | 江苏有能电力自动化有限公司 | The degasser that a kind of novel transformer oil chromatography on-Line Monitor Device is special |
| CN105259260A (en) * | 2015-11-20 | 2016-01-20 | 江苏有能电力自动化有限公司 | Novel transformer oil chromatography online monitoring device with three-way valve |
| CN105699150A (en) * | 2016-04-08 | 2016-06-22 | 大连世有电力科技有限公司 | Vacuum ultrasonic degassing device for portable transformer oil photoacoustic spectrum detection device |
| CN107132103A (en) * | 2017-07-17 | 2017-09-05 | 上海禾楷电气科技有限公司 | A kind of vacuum constant temperature oil and gas separating system |
| CN107167450A (en) * | 2017-07-17 | 2017-09-15 | 上海禾楷电气科技有限公司 | Gas in Oil of Transformer and micro- water on-line detecting system |
| CN111855872A (en) * | 2020-06-30 | 2020-10-30 | 国家电网有限公司 | Full-automatic oil-gas quantitative separation device |
| CN116550013A (en) * | 2023-07-10 | 2023-08-08 | 广东电网有限责任公司佛山供电局 | Oil-gas separation device, method and oil chromatographic analysis device |
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| CN101546646A (en) * | 2009-03-26 | 2009-09-30 | 上海交通大学 | On-line monitoring oil-gas separation device for transformer |
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| CN101546646A (en) * | 2009-03-26 | 2009-09-30 | 上海交通大学 | On-line monitoring oil-gas separation device for transformer |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104122350B (en) * | 2014-08-13 | 2016-01-20 | 国家电网公司 | A kind of cold-trap device for transformer insulated oil gas chromatographic |
| CN104122350A (en) * | 2014-08-13 | 2014-10-29 | 国家电网公司 | Cold trap device for gas chromatography of transformer insulating oil |
| CN104133026A (en) * | 2014-08-13 | 2014-11-05 | 国家电网公司 | Oil pretreatment degassing method for gas chromatography of transformer insulating oil |
| CN104133026B (en) * | 2014-08-13 | 2015-10-28 | 国家电网公司 | The oil product pre-treatment degas method of transformer insulated oil gas chromatographic |
| CN105126391A (en) * | 2015-09-17 | 2015-12-09 | 四川原觉科技有限公司 | Separating device for dissolved gas in oil |
| CN105223297A (en) * | 2015-11-20 | 2016-01-06 | 江苏有能电力自动化有限公司 | The degasser that a kind of novel transformer oil chromatography on-Line Monitor Device is special |
| CN105259260A (en) * | 2015-11-20 | 2016-01-20 | 江苏有能电力自动化有限公司 | Novel transformer oil chromatography online monitoring device with three-way valve |
| CN105223277A (en) * | 2015-11-20 | 2016-01-06 | 江苏有能电力自动化有限公司 | A kind of novel transformer oil chromatography on-Line Monitor Device |
| CN105223277B (en) * | 2015-11-20 | 2017-07-18 | 江苏有能电力自动化有限公司 | A kind of novel transformer oil chromatography on-Line Monitor Device |
| CN105223297B (en) * | 2015-11-20 | 2017-07-18 | 江苏有能电力自动化有限公司 | A kind of special degasser of novel transformer oil chromatography on-Line Monitor Device |
| CN105699150A (en) * | 2016-04-08 | 2016-06-22 | 大连世有电力科技有限公司 | Vacuum ultrasonic degassing device for portable transformer oil photoacoustic spectrum detection device |
| CN107132103A (en) * | 2017-07-17 | 2017-09-05 | 上海禾楷电气科技有限公司 | A kind of vacuum constant temperature oil and gas separating system |
| CN107167450A (en) * | 2017-07-17 | 2017-09-15 | 上海禾楷电气科技有限公司 | Gas in Oil of Transformer and micro- water on-line detecting system |
| CN107132103B (en) * | 2017-07-17 | 2023-04-28 | 上海禾楷电气科技有限公司 | Vacuum constant temperature oil-gas separation system |
| CN111855872A (en) * | 2020-06-30 | 2020-10-30 | 国家电网有限公司 | Full-automatic oil-gas quantitative separation device |
| CN111855872B (en) * | 2020-06-30 | 2023-05-05 | 国家电网有限公司 | Full-automatic oil-gas quantitative separation device |
| CN116550013A (en) * | 2023-07-10 | 2023-08-08 | 广东电网有限责任公司佛山供电局 | Oil-gas separation device, method and oil chromatographic analysis device |
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