CN108508120A - The quantitative inlet duct of chromatography online monitoring system for transformer oil - Google Patents
The quantitative inlet duct of chromatography online monitoring system for transformer oil Download PDFInfo
- Publication number
- CN108508120A CN108508120A CN201810323669.2A CN201810323669A CN108508120A CN 108508120 A CN108508120 A CN 108508120A CN 201810323669 A CN201810323669 A CN 201810323669A CN 108508120 A CN108508120 A CN 108508120A
- Authority
- CN
- China
- Prior art keywords
- hole
- solenoid valve
- bit triplet
- triplet solenoid
- gas circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/20—Injection using a sampling valve
- G01N2030/201—Injection using a sampling valve multiport valves, i.e. having more than two ports
Abstract
The present invention discloses a kind of quantitative inlet duct of chromatography online monitoring system for transformer oil,The first two-bit triplet solenoid valve is fixed on matrix,Second two-bit triplet solenoid valve and electric plane valve,The first gas circuit of the first through hole and gauge line import of the first two-bit triplet solenoid valve of connection is equipped in matrix,It is connected to the second gas circuit of the first through hole and gauge line outlet of the second two-bit triplet solenoid valve,It is connected to the third gas circuit of degasser connector and the first gas circuit,It is connected to the 4th gas circuit of the second through-hole of chromatographic column connector and the second two-bit triplet solenoid valve,Communication with carrier gas connector and the 5th gas circuit of the second through-hole of the first two-bit triplet solenoid valve and it is connected to the 6th gas circuit to eating dishes without rice or wine with the first through hole of electric plane valve,Second through-hole of electric plane valve is communicated with the second gas circuit,The third through-hole of first two-bit triplet solenoid valve is communicated with the third through-hole of the second two-bit triplet solenoid valve.
Description
Technical field
The present invention relates to a kind of chromatography online monitoring system for transformer oil can be improved with quantitative inlet duct, especially one kind
The quantitative inlet duct of the chromatography online monitoring system for transformer oil of pressure-resistant performance and accuracy of detection.
Background technology
Chromatography online monitoring system for transformer oil is the constituent content to transformation oil dissolved gas using gas chromatography
Etc. the real time measures device, it is therefore an objective to avoid transformer oil overheat, electric discharge etc. failures occur, be ensure power grid security effectively run
One of means.Chromatography online monitoring system for transformer oil needs quantitative inlet duct to quantify Gas in Oil of Transformer,
The chromatographic column for entering back into gas chromatograph carries out subsequent analysis.Existing chromatography online monitoring system for transformer oil with it is quantitative into
Device of air is mainly made of six-way valve and normally closed two three-way electromagnetic valve.Have on six-way valve and transformer degasser, gasometry
The interface that pipe, carrier gas, chromatographic column connect, and connected with to eating dishes without rice or wine by normally closed two three-way electromagnetic valve.The first state of six-way valve is
It degasser, gasometry pipe, normally closed two three-way electromagnetic valve and is connected to eating dishes without rice or wine, while carrier gas is connected to chromatographic column.Carrier gas at this time
It is connected to chromatographic column by six-way valve；The gas deviate from transformer oil is transported to quantity tube by degasser, by normally closed two-way valve
（It closes）With to eating dishes without rice or wine（Air）Isolation, is analysed to gas compression by degasser and enters quantity tube, and degasser is closed later
The valve being connect with six-way valve makes the gas confinement with certain pressure in quantity tube；Then normally closed two energizations magnetic is opened again
Valve makes in six-way valve gas pressure discharge to atmospheric pressure and maintains an equal level, closes normally closed two three-way electromagnetic valve later, that is, complete to transformation
Device oil dissolved gas quantifies.Second state of six-way valve is that carrier gas, gasometry pipe and chromatographic column communicate, and is determined gas by carrier gas
Gas to be analyzed heads into chromatographic column in buret, and then completes the detection to Gas in Oil of Transformer.Due to six-way valve pressure resistance by
Limit can not make to form vacuum state before the sample introduction of quantity tube, and remaining air will influence the purity of gas sample, directly reduce inspection
Survey precision.In addition, the problems such as six-way valve is poor there is also complicated, of high cost and operating reliability.
Invention content
The present invention be in order to solve the above-mentioned technical problem present in the prior art, provide one kind can be improved pressure-resistant performance and
The quantitative inlet duct of the chromatography online monitoring system for transformer oil of accuracy of detection.
Technical solution of the invention is：A kind of quantitative inlet duct of chromatography online monitoring system for transformer oil, has
Matrix, have on matrix degasser connector, quantity tube import, quantity tube outlet, to eating dishes without rice or wine, chromatographic column connector and carrier gas
Connector is fixed with the first two-bit triplet solenoid valve, the second two-bit triplet solenoid valve and electric plane valve, in matrix on matrix
Interior first through hole and the first gas circuit of gauge line import for being equipped with the first two-bit triplet solenoid valve of connection is connected to the second two-bit triplet
The second gas circuit that the first through hole of solenoid valve is exported with gauge line is connected to degasser connector and the third gas of the first gas circuit
Road, the 4th gas circuit of the second through-hole of connection chromatographic column connector and the second two-bit triplet solenoid valve, communication with carrier gas connector and
5th gas circuit of the second through-hole of the first two-bit triplet solenoid valve and connection to eat dishes without rice or wine with the first through hole of electric plane valve the
Second through-hole of six gas circuits, the electric plane valve is communicated with the second gas circuit, and the third of the first two-bit triplet solenoid valve is logical
Hole is communicated with the third through-hole of the second two-bit triplet solenoid valve.
The present invention substitutes existing six-way valve, compact overall structure, cavity using matrix and multiple solenoid valve control gas circuits
It is small（It is few to retain gas）, not only reduce production cost but also improve operating reliability.Especially pressure-resistant performance greatly improves, can
Make to form vacuum state before the sample introduction of quantity tube, avoids residual air from influencing gas sample purity, improve accuracy of detection.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the A-A views of Fig. 1.
Specific implementation mode
The chromatography online monitoring system for transformer oil of the present invention is as shown in Figure 1 and Figure 2 with quantitative inlet duct：Compared with skill
Art equally has matrix 1, has degasser connector 2, quantity tube import 3, quantity tube to export 4, to 5, chromatography of eating dishes without rice or wine on matrix 1
Column connector 6 and carrier gas connector 7, with the prior art except that being fixed with the first two-bit triplet solenoid valve on matrix 1
8, the second two-bit triplet solenoid valve 9 and electric plane valve 10 are equipped with the of the first two-bit triplet solenoid valve 8 of connection in the matrix 1
One through-hole 8-1 and the first gas circuit 11 of gauge line import 3, the first through hole 9-1 for being connected to the second two-bit triplet solenoid valve 9 and metering
Second gas circuit 12 of pipe outlet 4, is connected to chromatographic column company at connection degasser connector 2 and the third gas circuit 13 of the first gas circuit 11
The 4th gas circuit 14 of second through-hole 9-2 of interface 6 and the second two-bit triplet solenoid valve 9, communication with carrier gas connector 7 and the first two
The 5th gas circuit 15 of second through-hole 8-2 of three-way magnetic valve 8 and connection to eat dishes without rice or wine 5 with the first through hole 10-1 of electric plane valve 10
The 6th gas circuit 16, the second through-hole 10-2 of the electric plane valve 10 communicates with the second gas circuit 12, first two-bit triplet
The third through-hole 8-3 of solenoid valve 8 is communicated with the third through-hole 9-3 of the second two-bit triplet solenoid valve 9.First two-bit triplet solenoid valve
8 and second two-bit triplet solenoid valve 9 when being powered the second through-hole when being connected, powering off with third through-hole first through hole led with the second through-hole
It is logical；Two through hole is connected when electric plane valve 10 is powered, and when power-off is closed.
The course of work is as follows：
Compared with technology, degasser connector 2 is connected with transformer oil degasser first, quantity tube import 3 and quantitative
Pipe outlet 4 connects with quantity tube, and chromatographic column connector 6 and carrier gas connector 7 connect with chromatographic column and carrier gas respectively.
（1）First state：First two-bit triplet solenoid valve 8 and the second two-bit triplet solenoid valve 9 are powered, the first two-bit triplet
Second through-hole 8-2 of solenoid valve 8 is connected with third through-hole 8-3, the second through-hole 9-2 and third of the second two-bit triplet solenoid valve 9
Through-hole 9-3 conductings；Electric plane valve 10 powers off, and first through hole 10-1 and the second through-hole 10-2 are closed.At this point, carrier gas passes through the 5th
Gas circuit 15, the second through-hole 8-2 of the first two-bit triplet electric plane valve 8 and third through-hole 8-3, the second two-bit triplet solenoid valve 9
The second through-hole 9-2 and third through-hole 9-3 and the 4th gas circuit 14 enter chromatographic column；Quantity tube is vacuumized using degasser,
Close the valve between degasser and degasser connector 2, quantity tube kept to be in vacuum state, later degasser into
The valve between degasser and degasser connector 2 is opened in row degassing after degassing, be analysed to gas compression and entered to quantify
Pipe, turns off the valve between degasser and degasser connector 2, the confined gas to be analyzed with certain pressure is existed
In quantity tube.
（2）Second state：First two-bit triplet solenoid valve 8 and the second two-bit triplet solenoid valve 9 are powered, carrier gas and the first shape
State is identical to enter chromatographic column；Electric plane valve 10 is powered, and first through hole 10-1 is connected with the second through-hole 10-2 and is communicated with air
（To sky, about 8 seconds）, this state is that equilibrium state discharges extra pressure to the pressure inside quantitative balance pipe.
Since the pressure inside quantity tube is consistent with external pressure, and volume is fixed, it can be ensured that the gas content in quantity tube
It is consistent substantially in multiple work.
（3）First two-bit triplet solenoid valve 8 and the power-off of the second two-bit triplet solenoid valve 9, the first two-bit triplet solenoid valve 8
Is connected with through-hole 8-2 with first through hole 8-1, and the second through-hole 9-2 and first through hole 9-1 of the second two-bit triplet solenoid valve 9 is led
It is logical；Electric plane valve 10 powers off, and first through hole 10-1 and the second through-hole 10-2 are closed.Carrier gas at this time will have been completed in quantity tube
Quantitative gas to be analyzed heads into chromatographic column, completes quantitative sample injection work.
Claims (1)
1. a kind of quantitative inlet duct of chromatography online monitoring system for transformer oil, it is characterised in that：There is matrix（1）, in matrix
（1）On have degasser connector（2）, quantity tube import（3）, quantity tube outlet（4）, to eating dishes without rice or wine（5）, chromatographic column connector
（6）And carrier gas connector（7）, it is characterised in that：In matrix（1）On be fixed with the first two-bit triplet solenoid valve（8）, the second two
Three-way magnetic valve（9）And electric plane valve（10）,
In matrix（1）It is interior to be equipped with the first two-bit triplet solenoid valve of connection（8）First through hole（8-1）With gauge line import（3）'s
First gas circuit（11）, connection the second two-bit triplet solenoid valve（9）First through hole（9-1）It is exported with gauge line（4）The second gas
Road（12）, connection degasser connector（2）With the first gas circuit（11）Third gas circuit（13）, connection chromatographic column connector（6）
With the second two-bit triplet solenoid valve（9）The second through-hole（9-2）The 4th gas circuit（14）, communication with carrier gas connector（7）With first
Two-bit triplet solenoid valve（8）The second through-hole（8-2）The 5th gas circuit（15）And connection is to eating dishes without rice or wine（5）With electric plane valve（10）
First through hole（10-1）The 6th gas circuit（16）, the electric plane valve（10）The second through-hole（10-2）With the second gas circuit
（12）It communicates, the first two-bit triplet solenoid valve（8）Third through-hole（8-3）With the second two-bit triplet solenoid valve（9）
Three through-holes（9-3）It communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810323669.2A CN108508120B (en) | 2018-04-12 | 2018-04-12 | Quantitative air inlet device for transformer oil chromatographic online monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810323669.2A CN108508120B (en) | 2018-04-12 | 2018-04-12 | Quantitative air inlet device for transformer oil chromatographic online monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108508120A true CN108508120A (en) | 2018-09-07 |
| CN108508120B CN108508120B (en) | 2023-09-19 |
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ID=63381813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810323669.2A Active CN108508120B (en) | 2018-04-12 | 2018-04-12 | Quantitative air inlet device for transformer oil chromatographic online monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108508120B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425678A (en) * | 2018-11-16 | 2019-03-05 | 许继集团有限公司 | Device for sampling quantitative gas and gas-chromatography detection system |
| CN109655547A (en) * | 2018-12-29 | 2019-04-19 | 山东玉皇化工有限公司 | A kind of device and method of gas chromatograph detection exhaust gas component and real-time traffic |
Citations (8)
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|---|---|---|---|---|
| SU724973A1 (en) * | 1978-07-13 | 1980-03-30 | Всесоюзный научно-исследовательский институт природных газов | Device for gas sampling from liquid |
| JPS55114933A (en) * | 1979-02-28 | 1980-09-04 | Toshiba Corp | Gas extraction unit |
| JP2000241401A (en) * | 1999-02-25 | 2000-09-08 | Aichi Electric Co Ltd | Analyzing device for gas in electrical insulating oil |
| US6718817B1 (en) * | 2002-11-22 | 2004-04-13 | Chung-Shan Institute Of Science And Technology | Sample injection device for gas chromatography |
| CN101620212A (en) * | 2009-06-05 | 2010-01-06 | 杭州超距科技有限公司 | Gas automatic quantitive sampling device |
| CN201425590Y (en) * | 2009-06-05 | 2010-03-17 | 许坤 | Vacuum degassing device for insulating oil on-line chromatographic analysis |
| CN205484231U (en) * | 2016-02-03 | 2016-08-17 | 辽宁华科石油设备科技有限公司 | Gas distributor |
| CN208313913U (en) * | 2018-04-12 | 2019-01-01 | 大连世有电力科技有限公司 | The quantitative inlet duct of chromatography online monitoring system for transformer oil |
-
2018
- 2018-04-12 CN CN201810323669.2A patent/CN108508120B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU724973A1 (en) * | 1978-07-13 | 1980-03-30 | Всесоюзный научно-исследовательский институт природных газов | Device for gas sampling from liquid |
| JPS55114933A (en) * | 1979-02-28 | 1980-09-04 | Toshiba Corp | Gas extraction unit |
| JP2000241401A (en) * | 1999-02-25 | 2000-09-08 | Aichi Electric Co Ltd | Analyzing device for gas in electrical insulating oil |
| US6718817B1 (en) * | 2002-11-22 | 2004-04-13 | Chung-Shan Institute Of Science And Technology | Sample injection device for gas chromatography |
| CN101620212A (en) * | 2009-06-05 | 2010-01-06 | 杭州超距科技有限公司 | Gas automatic quantitive sampling device |
| CN201425590Y (en) * | 2009-06-05 | 2010-03-17 | 许坤 | Vacuum degassing device for insulating oil on-line chromatographic analysis |
| CN205484231U (en) * | 2016-02-03 | 2016-08-17 | 辽宁华科石油设备科技有限公司 | Gas distributor |
| CN208313913U (en) * | 2018-04-12 | 2019-01-01 | 大连世有电力科技有限公司 | The quantitative inlet duct of chromatography online monitoring system for transformer oil |
Non-Patent Citations (2)
| Title |
|---|
| 丁家峰 等: "变压器油中溶解气体实时在线监测系统的研制", 电力自动化设备, vol. 31, no. 06, pages 136 - 139 * |
| 周利军 等: "桥式传感器电路在油中溶解气体监测中的应用", 电力系统及其自动化学报, vol. 25, no. 02, pages 48 - 52 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425678A (en) * | 2018-11-16 | 2019-03-05 | 许继集团有限公司 | Device for sampling quantitative gas and gas-chromatography detection system |
| CN109425678B (en) * | 2018-11-16 | 2020-09-18 | 许继集团有限公司 | Gas quantitative sampling device and gas chromatography detection system |
| CN109655547A (en) * | 2018-12-29 | 2019-04-19 | 山东玉皇化工有限公司 | A kind of device and method of gas chromatograph detection exhaust gas component and real-time traffic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108508120B (en) | 2023-09-19 |
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