CN203405449U - Full-automatic sampling device for transformer oil chromatography - Google Patents
Full-automatic sampling device for transformer oil chromatography Download PDFInfo
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- CN203405449U CN203405449U CN201320525903.2U CN201320525903U CN203405449U CN 203405449 U CN203405449 U CN 203405449U CN 201320525903 U CN201320525903 U CN 201320525903U CN 203405449 U CN203405449 U CN 203405449U
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Abstract
The utility model discloses a full-automatic sampling device for transformer oil chromatography. The full-automatic sampling device for the transformer oil chromatography comprises detection equipment, an oil-gas separation device, a gas tank, a gas collection device and a submission device. The oil-gas separation device comprises a degassing tank with the tank bottom capable of moving, the tank bottom is connected with a tank bottom pushing device and a gravity compensation device, and a stirring device is arranged inside the degassing tank. The degassing tank is provided with a gas taking opening, a sampling opening, a nitrogen inlet and an oil discharge opening, the gas taking opening is connected with the gas collection device, the sampling opening is connected with a sample, the nitrogen inlet is connected with the gas tank, and the oil discharge opening is connected with an oil receiving tank. For the pretreatment process that laboratory gas chromatography detects gas components dissolved in transformer oil, the process needing manual operation of technical staff becomes automatic of equipment through the full-automatic sampling device, and therefore the detection efficiency of an oil-immersed transformer can be improved, the errors brought in the pretreatment step are reduced, and the manpower is saved. The full-automatic sampling device for the transformer oil chromatography has the popularization and application value.
Description
Technical field
The utility model relates to the full-automatic sampling device of a kind of transformer oil chromatographic, belongs to grid equipment detection technique field.
Background technology
At present, in oil-filled transformer fault diagnosis, generally adopt red, orange, green, blue, yellow (ROGBY) to analyze oil dissolved gas, to find as soon as possible the problem existing in transformer and take counter-measure, this is supervision and an important means that ensures transformer safe operation.Certainly, the oil-filled current transformer of a part or voltage transformer (VT) and sleeve pipe also can judge latency fault wherein by the gas composition detecting in oil, the detection scheme of range transformer oil chromatography emerges in an endless stream, main detection technique for main transformer oil comprises that laboratory oil chromatography detects, oil chromatography detection and portable oil chromatography detection etc. online, and the most authoritative detection method or laboratory oil chromatography detect.
Yet the oil chromatography in laboratory detection manual steps is many at present, complex steps is high to operating personnel's testing requirement, and operating personnel must omnidistance stand fast in laboratory.Though oil chromatography on-line monitoring technique can be realized auto injection, but only limit to an oil sample, can not realize the detection of a plurality of oil samples, and will realize auto injection, must supportingly with the software of its exploitation just can use, can not detect with the laboratory oil chromatography of existing use software collocation and use.Though portable oil chromatography can detect at the scene, its operating process and step and laboratory oil chromatography detect operation steps all fours, and the gas consumption of carrying is very fast, is unfavorable for realizing the detection of a plurality of oil samples.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of accuracy that can improve detection efficiency and data, laborsaving, practical, can to link with the existing oil chromatography operating system realization in the laboratory full-automatic sampling device of transformer oil chromatographic, overcomes the deficiencies in the prior art.
The technical solution of the utility model is: the full-automatic sampling device of a kind of transformer oil chromatographic, it comprises checkout equipment, gas and oil separating plant, gas tank, gas extractor and feeding device for inspection, gas and oil separating plant comprises the degassing tank that can move at the bottom of tank, thrust unit and gravity-compensated device at the bottom of connecting tank at the bottom of tank, in degassing tank, be provided with stirring apparatus, on degassing tank, be provided with air hatch, sample tap, nitrogen air intake opening and oil drain out, air hatch is connected with gas extractor, sample tap is connected with sample, nitrogen air intake opening is connected with gas tank, oil drain out with connect oil tank and be connected.
The full-automatic sampling device of above-mentioned transformer oil chromatographic is, between nitrogen air intake opening and gas tank, be connected with gasometer, at gas tank and have on the pipeline between gasometer and be provided with gas metering valve F1, on the pipeline between gasometer and nitrogen air intake opening, be provided with degassing tank gas admittance valve F2.
The full-automatic sampling device of aforesaid transformer oil chromatographic is between sample tap and sample, to be connected with liquid quantitative sampler; On the pipeline between sample tap and liquid quantitative sampler, be connected with degassing tank inlet valve F4, at sample, on the pipeline between liquid quantitative sampler, be connected with liquid proportional valve F6.
The full-automatic sampling device of aforesaid transformer oil chromatographic is that degassing tank is positioned at constant temperature oven.
The full-automatic sampling device of above-mentioned transformer oil chromatographic is, is connected with vacuum pump on degassing tank, is provided with vacuum valve F3 on the connecting line of vacuum pump and degassing tank.
The full-automatic sampling device of aforesaid transformer oil chromatographic, it is characterized in that: the structure of described gas extractor is syringe cylinder structure, on the piston of gas extractor, be connected with push-and-pull mechanical arm, outer putting at gas extractor is connected with feeding device for inspection, and described feeding device for inspection is for can move to gas extractor the interfacing manipulators at checkout equipment connector.
The full-automatic sampling device of aforesaid transformer oil chromatographic is that described stirring apparatus is magnetic stirring apparatus.
The full-automatic sampling device of aforesaid transformer oil chromatographic is, the quantity of degassing tank is more than one, and the quantity of gas extractor is corresponding with the quantity of degassing tank.
The full-automatic sampling device of aforesaid transformer oil chromatographic is, at oil drain out and connect and be provided with draining valve F5 between oil tank; Between air hatch and gas extractor, be provided with anti-fuel tap F7.
Compared with the prior art, the method for operating of the full-automatic sampling device of transformer oil chromatographic comprises the following steps
A. open gas metering valve F1, degassing tank gas admittance valve F2. degassing tank inlet valve F4 and anti-fuel tap F7, nitrogen injection, with all gas circuits of nitrogen wash, oil circuit and various device;
B. shut gas metering valve F1, open vacuum valve F3, gas circuit, oil circuit and various device are vacuumized;
C. a step and b step are repeated twice;
D. shut all valves except liquid proportional valve F6, oil is injected to quantity tube, closing liquid proportional valve F6, opens degassing tank inlet valve F4, and oil is injected to degassing tank;
E. close degassing tank inlet valve F4, open gas metering valve F1, by nitrogen injecting gas batcher; Close gas metering valve F1, open degassing tank gas admittance valve F2, nitrogen is injected to degassing tank;
F. close degassing tank gas admittance valve F2, constant temperature oven is heated to 50 degree;
G. under constant temperature, stir 20 minutes, more static 10 minutes;
H. promote at the bottom of degassing tank tank, gas to be released from air hatch, enter gas extractor, and accurate recording volume number;
I. by the workstation of reading automatic input checkout equipment;
J. with the admission gear in mechanical arm, from gas extractor, take out 1 milliliter of sample gas, inject checkout equipment, shift out checkout equipment air intake opening, and certainly employ nitrogen purge twice;
K. the automatic acknowledgement key of Pen-down detection equipment;
The more than one degassing tank of l.a-g step completes simultaneously, and h completes successively to k step.
The utility model for be the pretreatment procedure of oil chromatography on-line monitoring instrument, its equipment is that script is needed to technician's manual operation process implementation equipment automatization, can improve the detection efficiency of oil-filled transformer like this, reduce the error of bringing in pre-treatment link, save manpower, there is the value of applying.Between nitrogen air intake opening and gas tank, be connected with gasometer, can accurately control nitrogen inlet like this; Gravity-compensated device is for keeping the pressure differential between degassing tank internal pressure and atmospheric pressure, the volumetric errors of deviating from sample gas of avoiding pressure difference to bring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of gas extractor (3) and feeding device for inspection.
Embodiment
In this example, more than one degassing tank 6 is housed in constant temperature oven 15, each corresponding 1 outage in degassing tank 6 bottoms, simultaneously promotion piston and gas extractor 3 of respective amount.
Its concrete operation steps is
Open F1, F2, F4, F7 valve, nitrogen injection, with all gas circuits of nitrogen wash, oil circuit and various device; Shut F1, open F3, gas circuit, oil circuit and various device are vacuumized; Repeat nitrogen wash and vacuumize twice; Shut all valves except F6, oily filling liquid is quantitatively connect to sample gas, close F6, open F4,8 oil samples are injected respectively to 8 degassing tanks (degassing tank bottom design has outage, and now outage is in closed condition); Close F4, open F1, by nitrogen injecting gas batcher; Close F1, open F2, nitrogen (controlling nitrogen amount by gasometer) is injected respectively to degassing tank; Close F2, constant temperature oven is heated to 50 degree; Under constant temperature, stir 20 minutes, more static 10 minutes; Promote respectively 8 pistons gas is released from air hatch, enter gas extractor (after pasta, control F7 and close by sensor sensing), and accurate recording volume number; Open outage, respectively 8 oil samples that taken off after gas are entered and connect in oil tank by pipeline; Repeat, after vacuum pumping, to close F1, F2, F3, F5, F7, with gasoline, clean all oil circuits, open outage, discharge residual a small amount of oil, then repeat with twice of nitrogen wash and vacuum pumping; The workstation of the reading automatic input checkout equipment of gas will be deviate from; With the admission gear in mechanical arm, from gas extractor, take out quantitative sample gas, inject checkout equipment, shift out checkout equipment air intake opening, the acknowledgement key of Pen-down detection equipment, starts to detect automatically.The gas extractor and the sampling device that have entered after sample are used respectively twice of nitrogen purge.
Remarks: gravity-compensated device application law of buoyancy is obtained constant balancing force, offset the deadweight of oil, piston and because stirring the power of the gravity direction producing, make degassing tank internal pressure consistent with atmospheric pressure all the time, make the gas of deviating from more approach theoretical value, test result is more accurate.
Claims (9)
1. the full-automatic sampling device of transformer oil chromatographic, it comprises checkout equipment (1), gas and oil separating plant, gas tank (2), gas extractor (3) and feeding device for inspection, it is characterized in that: the degassing tank (6) that at the bottom of gas and oil separating plant comprises tank, (5) can move, thrust unit and gravity-compensated device (4) at the bottom of (6) at the bottom of tank upper connection tank, in degassing tank (6), be provided with stirring apparatus (7), on degassing tank (6), be provided with air hatch (8), sample tap (9), nitrogen air intake opening (10) and oil drain out (11), air hatch (8) is connected with gas extractor (3), sample tap (9) is connected with sample (12), nitrogen air intake opening (10) is connected with gas tank (2), oil drain out (11) with connect oil tank and be connected.
2. the full-automatic sampling device of transformer oil chromatographic according to claim 1, it is characterized in that: between nitrogen air intake opening (10) and gas tank (2), be connected with gasometer (13), at gas tank (2) and have on the pipeline between gasometer (13) and be provided with gas metering valve F1, on the pipeline between gasometer (13) and nitrogen air intake opening (10), be provided with degassing tank gas admittance valve F2.
3. the full-automatic sampling device of transformer oil chromatographic according to claim 1 and 2, is characterized in that: between sample tap (9) and sample (12), be connected with liquid quantitative sampler (14); On the pipeline between sample tap (9) and liquid quantitative sampler (14), be connected with degassing tank inlet valve F4, at sample (12), on the pipeline between liquid quantitative sampler (14), be connected with liquid proportional valve F6.
4. the full-automatic sampling device of transformer oil chromatographic according to claim 3, is characterized in that: degassing tank (6) is positioned at constant temperature oven (15).
5. the full-automatic sampling device of transformer oil chromatographic according to claim 4, is characterized in that: on degassing tank (6), be connected with vacuum pump (16), on the connecting line of vacuum pump (16) and degassing tank (6), be provided with vacuum valve F3.
6. according to the full-automatic sampling device of the transformer oil chromatographic described in claim 1 or 4, it is characterized in that: the structure of described gas extractor (3) is syringe cylinder structure, on the piston of gas extractor (3), be connected with push-and-pull mechanical arm (18), outer putting at gas extractor (3) is connected with feeding device for inspection (17), and described feeding device for inspection (17) is for can move to gas extractor (3) interfacing manipulators at checkout equipment (1) connector.
7. the full-automatic sampling device of transformer oil chromatographic according to claim 6, is characterized in that: described stirring apparatus (7) is magnetic stirring apparatus.
8. the full-automatic sampling device of transformer oil chromatographic according to claim 7, is characterized in that: the quantity of degassing tank (6) is more than one, and the quantity of gas extractor (3) is corresponding with the quantity of degassing tank (6).
9. the full-automatic sampling device of transformer oil chromatographic according to claim 8, is characterized in that: at oil drain out (11) and connect and be provided with draining valve F5 between oil tank; Between air hatch (8) and gas extractor (3), be provided with anti-fuel tap F7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525903.2U CN203405449U (en) | 2013-08-27 | 2013-08-27 | Full-automatic sampling device for transformer oil chromatography |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320525903.2U CN203405449U (en) | 2013-08-27 | 2013-08-27 | Full-automatic sampling device for transformer oil chromatography |
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| CN203405449U true CN203405449U (en) | 2014-01-22 |
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| CN201320525903.2U Expired - Lifetime CN203405449U (en) | 2013-08-27 | 2013-08-27 | Full-automatic sampling device for transformer oil chromatography |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412075A (en) * | 2013-08-27 | 2013-11-27 | 贵州电力试验研究院 | Full-automatic oil-chromatography sample feeding device for transformer and operation method |
| CN105424846A (en) * | 2016-01-08 | 2016-03-23 | 上海骞泰电力科技有限公司 | Full-automatic transformer oil chromatogram degassing sampling device and working method thereof |
| CN115201388A (en) * | 2022-08-01 | 2022-10-18 | 哈尔滨理工大学 | Intelligent sampling analysis system and sampling analysis method for methanol in transformer oil |
-
2013
- 2013-08-27 CN CN201320525903.2U patent/CN203405449U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412075A (en) * | 2013-08-27 | 2013-11-27 | 贵州电力试验研究院 | Full-automatic oil-chromatography sample feeding device for transformer and operation method |
| CN103412075B (en) * | 2013-08-27 | 2015-06-03 | 贵州电力试验研究院 | Full-automatic oil-chromatography sample feeding device for transformer and operation method |
| CN105424846A (en) * | 2016-01-08 | 2016-03-23 | 上海骞泰电力科技有限公司 | Full-automatic transformer oil chromatogram degassing sampling device and working method thereof |
| CN115201388A (en) * | 2022-08-01 | 2022-10-18 | 哈尔滨理工大学 | Intelligent sampling analysis system and sampling analysis method for methanol in transformer oil |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
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| CX01 | Expiry of patent term |