CN101598642B - Standard oil sample preparation device for transformer oil - Google Patents
Standard oil sample preparation device for transformer oil Download PDFInfo
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- CN101598642B CN101598642B CN200910019876XA CN200910019876A CN101598642B CN 101598642 B CN101598642 B CN 101598642B CN 200910019876X A CN200910019876X A CN 200910019876XA CN 200910019876 A CN200910019876 A CN 200910019876A CN 101598642 B CN101598642 B CN 101598642B
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Abstract
The invention provides a standard oil sample preparation device for transformer oil, comprising an oil tank filled with blank oil sample, an oil pump, a first cylinder, a second cylinder and a third cylinder; wherein, the oil pump is communicated with the bottom of the oil tank, the piston rods of the first cylinder, the second cylinder and the third cylinder are all fixedly connected with a driving device. The invention is characterized in that the driving device comprises three motors which are correspondingly fixedly connected with the piston rods of the first cylinder, the second cylinder and the third cylinder; the top end and the bottom of the three cylinders are all provided with an opening; the opening at the top end of the first cylinder is connected with the oil pump, a prepared oil sample sapling port and the openings at the top ends of the three cylinders by a first valve, a second valve and a third valve respectively and correspondingly; the opening at the top end of the third cylinder is respectively connected with the opening at the bottom of the second cylinder and a fifth valve by a fourth valve and is also connected with the oil tank by a sixth valve; and the other end of the fifth valve is connected with a mixed gas inlet. The device can be utilized to prepare standard oil sample in different concentrations under micro pressure condition with good oil sample consistency and high preparation efficiency.
Description
Technical field
The invention provides a kind of standard oil sample preparation device for transformer oil, belong to power electronics surveying instrument technical field.
Background technology
The failure gas analysis of large-scale power transformer at present all is to adopt chromatographic analysis systems usually, gas chromatographic analysis is the method for the Multi-Component Gas Analyzing of comparative maturity, need analyze and could screen by its standard oil sample to standard content gas the quality of chromatographic analysis system operation conditions.The method of existing preparation standard oil sample mostly is manual preparation, and efficient is low, and the standard oil sample consistance that makes is bad, and once Pei Zhi sample size also seldom can not satisfy actual needs.In addition, current on-line chromatograph analytic system is used more and more, but because the difference of the technology of employing, and the test data of various on-line chromatographs and testing laboratory chromatographic data seldom have and conform to.
Summary of the invention
The present invention provides even, the high standard oil sample preparation device for transformer oil of gas content accuracy of gas concentration in a kind of oil sample that can overcome above-mentioned defective, guarantee to prepare out.Its technology contents is:
Comprise the fuel tank that holds blank oil sample, oil pump, first cylinder, second cylinder and the 3rd cylinder, wherein oil pump is communicated with the fuel tank bottom, first cylinder, all fixedly connected with drive unit in the piston rod end of second cylinder and the 3rd cylinder, it is characterized in that: drive unit comprises three motors, the correspondence and first cylinder, second cylinder is fixedlyed connected with the tailpiece of the piston rod of the 3rd cylinder, the top and the bottom of three cylinders are equipped with opening, the opening of first cylinder head is respectively through first valve, second valve, the 3rd valve correspondence connects oil pump, the opening of preparation oil sample sample tap and the 3rd cylinder head, the opening of the 3rd cylinder head connects the opening and the 5th valve of second cylinder bottom respectively through the 4th valve, through the 6th valve connected tank, another termination preparation gas inlet of the 5th valve.
Described standard oil sample preparation device for transformer oil, motor adopts dc stepper motor, drives cylinder piston and slowly moves, and realizes the minute-pressure power preparation of standard oil sample.
Its principle of work is: preparation gas at first enters in second cylinder, and the back is pushed in the 3rd cylinder by the piston of second cylinder; Fill with in first cylinder from the blank oil sample in the fuel tank, this oil sample is pushed the 3rd cylinder by the piston of first cylinder to be mixed with the preparation gas that enters in advance, forms gas-oil mixture.The 3rd cylinder flows back to second cylinder with the gas of its middle and upper part again, and oil sample is flow back to first cylinder; Second cylinder enters internal gas the 3rd cylinder again, and then first cylinder flows back to the 3rd cylinder to inner oil sample once more and mixes with the gas of the inside, after repeatedly oil gas mixes, makes the standard oil sample of saturated dissolved gas.
The present invention compared with prior art has following advantage:
1, prepare the standard oil sample with motor as the power drive cylinder piston, cylinder piston moves slowly when the preparation sample, realizes the minute-pressure power preparation of cylinder internal, and then gas concentration is even in the oil sample that guarantees to prepare out, gas content accuracy height.
2, the sample size that once makes is big, and the confecting efficiency height is more convenient for the on-line chromatograph system is carried out Performance Detection.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Among the figure: 1, blank oil sample 2, fuel tank 3, oil pump 4, first cylinder 5, second cylinder 6, the 3rd cylinder 7, motor 8, opening 9, first valve 10, second valve 11, the 3rd valve 12, the 4th valve 15, the 5th valve 16, the 6th valve 17, preparation gas inlet 18, preparation oil sample sample tap
Embodiment
In the embodiment in figure 1: motor 7 adopts dc stepper motor, wherein oil pump is communicated with the fuel tank bottom, all fixedly connected with dc stepper motor 7 in the piston rod end of first cylinder 4, second cylinder 5 and the 3rd cylinder 6, drive cylinder piston by motor 7 and slowly move, realize the minute-pressure power preparation of standard oil sample.The top of three cylinders and bottom are equipped with opening 8, the opening 8 on first cylinder, 4 tops is respectively through first valve 9, second valve 10, the 3rd valve 11 correspondences connect oil pump 3, the opening 8 on preparation oil sample sample tap 18 and the 3rd cylinder 6 tops, oil pump 3 is connected with the fuel tank 2 that holds blank oil sample 1, and pass through first valve 9 and inject blank oil sample 1 for first cylinder 4, the opening 8 on the 3rd cylinder 6 tops connects the opening 8 and the 5th valve 15 of second cylinder, 5 bottoms respectively through the 4th valve 12, connect the fuel tank 2 that holds blank oil sample 1 through the 6th valve 16, can flow back to remaining oil sample in three cylinders in the fuel tank 2 another termination preparation gas inlet 17 of the 5th valve 15 by the 6th valve 16.
Claims (2)
1. standard oil sample preparation device for transformer oil, comprise the fuel tank (2) that holds blank oil sample (1), oil pump (3), first cylinder (4), second cylinder (5) and the 3rd cylinder (6), wherein oil pump (3) is communicated with fuel tank (2) bottom, first cylinder (4), second cylinder (5) is all fixedlyed connected with drive unit with the piston rod end of the 3rd cylinder (6), it is characterized in that: drive unit comprises three motors (7), correspondence and first cylinder (4), second cylinder (5) is fixedlyed connected with the tailpiece of the piston rod of the 3rd cylinder (6), the top of three cylinders and bottom are equipped with opening (8), the opening (8) on first cylinder (4) top is respectively through first valve (9), second valve (10), the 3rd valve (11) correspondence connects oil pump (3), the opening (8) on preparation oil sample sample tap (18) and the 3rd cylinder (6) top, the opening (8) on the 3rd cylinder (6) top connects the opening (8) and the 5th valve (15) of second cylinder (5) bottom respectively through the 4th valve (12), through the 6th valve (16) connected tank (2), another termination preparation gas inlet (17) of the 5th valve (15); Preparation gas enters second cylinder (5) through the 5th valve (15), the back is pushed in the 3rd cylinder (6) through the 4th valve (12) by second cylinder (5), blank oil sample (1) is pushed in the 3rd cylinder (6) through the 3rd valve (11) by first cylinder (4) and mixes with preparation gas, forms gas-oil mixture; The 3rd cylinder (6) flows back to second cylinder (5) with the gas of its middle and upper part again, and oil sample is flow back to first cylinder (4); Second cylinder (5) enters internal gas the 3rd cylinder (6) again, and then first cylinder (4) flows back to the 3rd cylinder (6) to inner oil sample once more and carries out oil gas and mix, and repeated multiple times like this makes the standard oil sample of saturated dissolved gas.
2. standard oil sample preparation device for transformer oil as claimed in claim 1 is characterized in that: motor (7) adopts dc stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910019876XA CN101598642B (en) | 2009-03-21 | 2009-03-21 | Standard oil sample preparation device for transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910019876XA CN101598642B (en) | 2009-03-21 | 2009-03-21 | Standard oil sample preparation device for transformer oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101598642A CN101598642A (en) | 2009-12-09 |
| CN101598642B true CN101598642B (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910019876XA Expired - Fee Related CN101598642B (en) | 2009-03-21 | 2009-03-21 | Standard oil sample preparation device for transformer oil |
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| Country | Link |
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| CN (1) | CN101598642B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383377B (en) * | 2012-05-04 | 2017-01-25 | 国网宁夏电力公司电力科学研究院 | Testing and calibrating device for gas-dissolved-in-transformer-oil online monitoring system |
| CN103149345B (en) * | 2013-02-25 | 2015-07-15 | 浙江省电力公司电力科学研究院 | Detecting method and detecting device for intelligent dissolved gas-in-oil component |
| CN103217991B (en) * | 2013-03-27 | 2016-08-10 | 国家电网公司 | A kind of control pressurer system for simulating converting equipment insulating oil |
| CN105675359A (en) * | 2014-11-20 | 2016-06-15 | 上海上计群力分析仪器有限公司 | Transformer oil standard oil preparation device and preparation method |
| CN104569221A (en) * | 2015-01-21 | 2015-04-29 | 杭州柯林电力设备有限公司 | Program-controlled transformer oil gas mixing and oil filtering system and working method thereof |
| CN104849129B (en) * | 2015-05-30 | 2017-12-08 | 国家电网公司 | Transformer oil mother liquor dilution method and its sample preparation device |
| CN109425711A (en) * | 2017-09-05 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of detection device and system of gas content |
| CN107957362A (en) * | 2017-12-28 | 2018-04-24 | 国网安徽省电力公司电力科学研究院 | Gas-liquid mixed distributing device with filtering function |
| CN115015442B (en) * | 2022-07-19 | 2023-11-14 | 国网安徽省电力有限公司电力科学研究院 | Laboratory gas chromatograph calibration device and method based on gradient oil sample calibration method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299056A (en) * | 2000-08-14 | 2001-06-13 | 赵福生 | In-line chromatographic monitor of transformer oil and its monitor method |
| CN101320032A (en) * | 2008-06-30 | 2008-12-10 | 江苏省电力试验研究院有限公司 | Standard oil formulation device and method |
-
2009
- 2009-03-21 CN CN200910019876XA patent/CN101598642B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299056A (en) * | 2000-08-14 | 2001-06-13 | 赵福生 | In-line chromatographic monitor of transformer oil and its monitor method |
| CN101320032A (en) * | 2008-06-30 | 2008-12-10 | 江苏省电力试验研究院有限公司 | Standard oil formulation device and method |
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| CN101598642A (en) | 2009-12-09 |
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| CB03 | Change of inventor or designer information |
Inventor after: Xu Pingji Inventor after: Wang Zhiguang Inventor after: Yao Zhenru Inventor before: Xu Pingji Inventor before: Wang Zhiguang |
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