CN112255359B - Oil chromatography advanced diagnostic device - Google Patents
Oil chromatography advanced diagnostic device Download PDFInfo
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- CN112255359B CN112255359B CN202011256604.4A CN202011256604A CN112255359B CN 112255359 B CN112255359 B CN 112255359B CN 202011256604 A CN202011256604 A CN 202011256604A CN 112255359 B CN112255359 B CN 112255359B
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- oil
- cavity
- pipeline
- collecting tank
- baffle plate
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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
Abstract
The invention provides an oil chromatography advanced diagnosis device, which comprises an oil taking valve, an oil pipeline, an oil collecting tank, an oil circuit switching mechanism and a gas chromatograph, wherein the oil pipeline comprises a vertical pipeline and a transverse pipeline, a metal oil baffle plate is arranged in the transverse pipeline, the oil pipeline is respectively communicated with a first cavity and a second cavity in the oil collecting tank through the transverse pipeline, under the action of the oil path switching mechanism, the metal oil baffle plate can rotate to one side of the first cavity or one side of the second cavity, the first cavity is used for storing part of insulating oil in advance, after a certain amount of insulating oil is stored in the first cavity, the oil path switching mechanism can switch the conveying of the insulating oil into the second cavity, therefore, the insulating oil entering the second cavity is representative, and the gas contained in the insulating oil conveyed in the previous period is prevented from being incomplete and corresponding to the accuracy of the final fault diagnosis result.
Description
Technical Field
The invention relates to the technical field of transformer detection, in particular to an oil chromatography advanced diagnosis device.
Background
For a large-scale power transformer, oil is almost used for insulation and heat dissipation at present, the transformer oil and solid organic insulating materials (paper, paperboard and the like) in the oil are gradually deteriorated under the operation voltage due to various factors such as electricity, heat, oxidation, local electric arc and the like, the transformer oil and the solid organic insulating materials are cracked into low molecular hydrocarbon gas, carbon monoxide and carbon dioxide gas, most of the low molecular hydrocarbon gas, the carbon monoxide and the carbon dioxide gas are dissolved in the oil, the gas dissolved in the transformer oil is analyzed through gas chromatography analysis of the oil in the transformer, and therefore diagnosis of faults existing in the transformer is a common method for monitoring the state of the transformer at present.
The insulating oil in the transformer needs to be obtained before diagnosis to serve as an oil sample, in order to ensure the correctness of a fault diagnosis result, partial oil can be discharged before the oil sample is obtained, and then sampling is carried out.
Disclosure of Invention
Therefore, the invention provides an oil chromatogram advanced diagnosis device, which can discharge part of oil before taking an oil sample, ensure that the oil sample for diagnosis is representative, and ensure the diagnosis result.
The technical scheme of the invention is realized as follows:
the oil chromatogram advanced diagnosis device comprises an oil taking valve, an oil pipeline, an oil collecting tank, an oil way switching mechanism and a gas chromatograph, wherein the oil taking valve is arranged on a transformer, the oil pipeline is respectively connected with the oil taking valve and the oil collecting tank, the oil collecting tank is divided into a first cavity and a second cavity through a partition plate, and the second cavity is used for conveying an oil sample to the gas chromatograph through a connecting pipeline; the oil conveying pipeline comprises a vertical pipeline and a transverse pipeline, the vertical pipeline is connected with the oil taking valve and the upper surface of the transverse pipeline, and two ends of the transverse pipeline are respectively communicated with the first cavity and the second cavity; the oil circuit switching mechanism comprises a metal oil baffle plate, a crown gear, a sliding plate and an action rod, wherein the metal oil baffle plate is arranged in a transverse pipeline and is positioned below a vertical pipeline, one end of the metal oil baffle plate is hinged to the bottom surface of the transverse pipeline, the other end of the metal oil baffle plate is in contact with the inner wall of the vertical pipeline, the sliding plate is arranged in a first cavity, the bottom surface of the sliding plate is connected with the bottom surface of a first box body through a spring, one end of the action rod is connected with the top surface of the sliding plate, the other end of the action rod extends out of the first cavity, the crown gear is arranged on one side of the transverse pipeline, a magnet block is arranged on one side, which is not provided with teeth, and the magnet block is positioned outside the metal oil baffle plate, and the action rod extends out of the side wall above the crown gear and is provided with a rack.
Preferably, the oil collecting tank further comprises a rotating shaft, a fixing plate is arranged on the top surface of the oil collecting tank, a bearing is arranged on the fixing plate, the rotating shaft is connected with the bearing, and the crown gear is connected with the bearing.
Preferably, the side wall of the second cavity is provided with a sliding groove, the side wall of the sliding plate is provided with a sliding block, and the sliding block is arranged in the sliding groove.
Preferably, the air pump further comprises an air exhaust pipe and an air pump, the air exhaust pipe is communicated with the second cavity, and the air pump is connected with the air exhaust pipe.
Preferably, an oil discharge port is formed in the side wall of the oil collecting tank, the oil discharge port is communicated with the first cavity, and a valve is arranged on the oil discharge port.
Preferably, the bottom of the oil collecting tank is provided with a driving wheel.
Preferably, the oil collecting device further comprises an electric push rod, the electric push rod is arranged in the first cavity, an output shaft of the electric push rod is connected with the partition plate, and the partition plate is in sliding connection with the side wall of the oil collecting tank.
Preferably, the oil collecting tank lateral wall is provided with a plurality of constant head tanks, the baffle lateral wall is provided with elasticity and bumps the pearl, elasticity bumps the pearl and imbeds in the constant head tank.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an oil chromatography advanced diagnosis device, after an oil taking valve is opened, insulating oil can be conveyed into an oil collecting tank through an oil conveying pipeline, the oil collecting tank is divided into a first cavity and a second cavity, initially, the insulating oil can be conveyed into the first cavity, when the amount of the insulating oil in the first cavity reaches a fixed value, the oil conveying pipeline automatically closes the conveying of the first cavity, the insulating oil is conveyed into the second cavity, then the insulating oil is conveyed to a gas chromatograph through the second cavity for fault diagnosis, the representative oil sample can be ensured through a mode of oil discharging in advance, and the fault diagnosis effect is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of an oil chromatography advanced diagnostic device of the present invention;
FIG. 2 is a schematic diagram showing the internal structure of an oil pipeline of an advanced oil chromatography diagnostic device according to the present invention;
FIG. 3 is a schematic diagram of a top connection structure of a partition and an oil collecting tank of the advanced diagnostic apparatus for oil chromatography according to the present invention;
FIG. 4 is a schematic structural diagram of a crown gear and a fixed plate of the advanced diagnostic apparatus for oil chromatography of the present invention;
in the figure, 1 is an oil taking valve, 2 is an oil collecting tank, 3 is a gas chromatograph, 4 is a partition plate, 5 is a first cavity, 6 is a second cavity, 7 is a connecting pipeline, 8 is a vertical pipeline, 9 is a horizontal pipeline, 10 is a metal oil baffle plate, 11 is a crown gear, 12 is a sliding plate, 13 is an action rod, 14 is a spring, 15 is a magnet block, 16 is a rack, 17 is a rotating shaft, 18 is a fixing plate, 19 is a bearing, 20 is a sliding chute, 21 is a sliding block, 22 is an exhaust tube, 23 is an air pump, 24 is an oil outlet, 25 is a valve, 26 is a driving wheel, 27 is an electric push rod, 28 is a positioning groove, and 29 is an elastic collision bead.
Detailed Description
For a better understanding of the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, the advanced oil chromatography diagnostic device provided by the invention comprises an oil taking valve 1, an oil pipeline, an oil collecting tank 2, an oil path switching mechanism and a gas chromatograph 3, wherein the oil taking valve 1 is arranged on a transformer, the oil pipeline is respectively connected with the oil taking valve 1 and the oil collecting tank 2, the oil collecting tank 2 is divided into a first cavity 5 and a second cavity 6 by a partition plate 4, and the second cavity 6 conveys an oil sample to the gas chromatograph 3 by a connecting pipeline 7; the oil conveying pipeline comprises a vertical pipeline 8 and a transverse pipeline 9, the vertical pipeline 8 is connected with the oil taking valve 1 and the upper surface of the transverse pipeline 9, and two ends of the transverse pipeline 9 are respectively communicated with the first cavity 5 and the second cavity 6; the oil circuit switching mechanism comprises a metal oil baffle plate 10, a crown gear 11, a sliding plate 12 and an action rod 13, wherein the metal oil baffle plate 10 is arranged in a transverse pipeline 9 and is positioned below a vertical pipeline 8, one end of the metal oil baffle plate is hinged to the bottom surface of the transverse pipeline 9, the other end of the metal oil baffle plate is contacted with the inner wall of the vertical pipeline 8, the sliding plate 12 is arranged in a first cavity 5, the bottom surface of the sliding plate is connected with the bottom surface of a first box body through a spring 14, one end of the action rod 13 is connected with the top surface of the sliding plate 12, the other end of the action rod extends out of the first cavity 5, the crown gear 11 is arranged on one side of the transverse pipeline 9, a magnet block 15 is arranged on one side without teeth, the magnet block 15 is positioned outside the metal oil baffle plate 10, and a rack 16 is arranged on the side wall of the action rod 13 extending out of the upper part of the crown gear 11.
The invention relates to an oil chromatogram advanced diagnosis device, wherein an oil taking valve 1 is arranged on an oil outlet of a transformer, when oil is taken, an oil pipeline is connected with the oil taking valve 1, a switch on the oil taking valve 1 is opened, so that insulating oil in the transformer can be conveyed into an oil collecting tank 2 through the oil pipeline and conveyed to a gas chromatograph 3 through the oil collecting tank 2, the fault of the transformer is diagnosed after being analyzed by the gas chromatograph 3, in order to ensure the accuracy of fault diagnosis, the oil collecting tank 2 is divided into a first cavity 5 and a second cavity 6, the insulating oil in the first cavity 5 is not used for detection, the insulating oil in the second cavity 6 is used for conveying to the gas chromatograph 3 for detection, and oil discharge has certain priority, the insulating oil is conveyed into the first cavity 5 firstly, after the insulating oil in the first cavity 5 meets certain amount, the insulating oil can be automatically conveyed into the second cavity 6, therefore, the insulating oil entering the second cavity 6 can be representative, and the accuracy of a fault diagnosis result can be guaranteed.
Specifically, the oil pipeline is divided into a vertical pipeline 8 and a transverse pipeline 9, a metal oil baffle plate 10 is arranged at the joint of the transverse pipeline 9 and the vertical pipeline 8, the bottom of the metal oil baffle plate 10 is hinged with the bottom surface of the transverse pipeline 9, so that the metal oil baffle plate 10 can rotate, the other end of the metal oil baffle plate 10 can rotate to the inner wall of the vertical pipeline 8 to be in contact with the vertical pipeline 8, the transverse pipeline 9 on one side is blocked, when the insulating oil amount in the first cavity 5 reaches a fixed value through the arranged metal oil baffle plate 10, the metal oil baffle plate 10 is rotated, the metal oil baffle plate 10 cuts off the conveying of the insulating oil of the transverse pipeline 9 in the direction of the first cavity 5, and meanwhile, the conveying of the insulating oil of the transverse pipeline 9 in the direction of the second cavity 6 is started, so that an insulating oil sample is extracted.
When the metal oil baffle plate 10 is positioned at one side of the second cavity 6, the insulating oil can be conveyed from the oil pipeline to the second cavity 6, a sliding plate 12 is arranged in the second cavity 6, the sliding plate 12 is supported at the middle part of the second cavity 6 through a spring 14, when the insulating oil falls into the second cavity 6, the insulating oil can be accumulated on the sliding plate 12, under the gravity of the insulating oil, the sliding plate 12 moves downwards and drives an action rod 13 and a rack 16 to move downwards, the rack 16 is not meshed with a crown gear 11 at the beginning, the rack 16 is meshed with the crown gear 11 along with the gradual descending of the sliding plate 12 and drives the crown gear 11 to rotate clockwise, a magnet block 15 is arranged at the back of the crown gear 11, the metal oil baffle plate 10 is magnetically attracted by the magnet block 15, when the magnet block 15 rotates along with the crown gear 11, the metal oil baffle plate 10 can be turned to one side of the first cavity 5 from one side of the second cavity 6, when the conveying of the insulating oil of the second cavity 6 is started, the first chamber 5 is closed from the transfer of insulating oil so that insulating oil can be transferred into the second chamber 6.
In the process of conveying the insulating oil to the second cavity 6, because partial insulating oil exists in the first cavity 5 all the time, therefore the metal oil baffle plate 10 can be located on one side of the first cavity 5 all the time, the transverse pipeline 9 on one side of the first cavity 5 is closed, after the oil sample is conveyed to the gas chromatograph 3 for fault diagnosis, the insulating oil in the first cavity 5 can be discharged, after the insulating oil is discharged, the sliding plate 12 moves upwards under the elastic force of the spring 14 to drive the rack 16 to move upwards and enable the crown gear 11 to rotate anticlockwise, so that the metal oil baffle plate 10 returns to one side of the second cavity 6, the transverse pipeline 9 of the second cavity 6 is blocked to prepare for the next oil taking process.
Preferably, the oil collecting device further comprises a rotating shaft 17, a fixing plate 18 is arranged on the top surface of the oil collecting tank 2, a bearing 19 is arranged on the fixing plate 18, the rotating shaft 17 is connected with the bearing 19, and the crown gear 11 is connected with the bearing 19.
Specifically, when the crown gear 11 rotates following the rack 16, the rotating shaft 17 rotates about the bearing 19.
Preferably, the side wall of the second cavity 6 is provided with a sliding groove 20, the side wall of the sliding plate 12 is provided with a sliding block 21, and the sliding block 21 is arranged in the sliding groove 20.
When the sliding plate 12 moves under gravity or elastic force, the sliding blocks 21 provided on the side walls thereof slide in the sliding grooves 20, so as to prevent the sliding plate 12 from shifting during sliding, and ensure that the rack 16 can be smoothly meshed with the crown gear 11.
Preferably, the device further comprises an air exhaust tube 22 and an air pump 23, wherein the air exhaust tube 22 is communicated with the second cavity 6, and the air pump 23 is connected with the air exhaust tube 22.
Before the oil sample is extracted, air in the second cavity 6 can be extracted through the extraction pipe 22, so that the air in the second cavity 6 is prevented from contacting with the insulating oil to influence the result of final diagnosis.
Preferably, the side wall of the oil collecting tank 2 is provided with an oil outlet 24, the oil outlet 24 is communicated with the first cavity 5, and a valve 25 is arranged on the oil outlet 24.
After the oil sample is extracted, the insulating oil in the first cavity 5 can be discharged through the oil outlet 24, and the valve 25 is used for controlling the closing and opening of the oil outlet 24.
Preferably, the bottom of the oil collecting tank 2 is provided with a driving wheel 26.
The oil collecting tank 2 has a moving function, and fault diagnosis of different transformers is facilitated.
Preferably, still include electric putter 27, electric putter 27 sets up in first cavity 5, and its output shaft is connected with baffle 4, baffle 4 and oil collecting tank 2 lateral wall sliding connection, oil collecting tank 2 lateral wall is provided with a plurality of constant head tanks 28, the baffle 4 lateral wall is provided with elasticity and bumps pearl 29, elasticity bumps pearl 29 and imbeds in the constant head tank 28.
Specifically, because different transformers have different sizes, the amount of oil samples for fault diagnosis also has difference, so the invention can adjust the volume of the second cavity 6, the arranged electric push rod 27 can drive the partition plate 4 to slide in the oil collecting tank 2, and the elastic collision bead 29 on the partition plate 4 can be popped out to the positioning groove 28, thereby adjusting the volume of the second cavity 6, and finally the amount of the insulating oil entering the gas chromatograph 3 can be adjusted, thereby being suitable for fault diagnosis of transformers with various sizes.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The oil chromatogram advanced diagnosis device is characterized by comprising an oil taking valve, an oil delivery pipeline, an oil collecting tank, an oil path switching mechanism and a gas chromatograph, wherein the oil taking valve is arranged on a transformer, the oil delivery pipeline is respectively connected with the oil taking valve and the oil collecting tank, the oil collecting tank is divided into a first cavity and a second cavity through a partition plate, and the second cavity is used for delivering an oil sample to the gas chromatograph through a connecting pipeline; the oil conveying pipeline comprises a vertical pipeline and a transverse pipeline, the vertical pipeline is connected with the oil taking valve and the upper surface of the transverse pipeline, and two ends of the transverse pipeline are respectively communicated with the first cavity and the second cavity; the oil circuit switching mechanism comprises a metal oil baffle plate, a crown gear, a sliding plate and an action rod, wherein the metal oil baffle plate is arranged in the transverse pipeline and is positioned below the vertical pipeline, one end of the metal oil baffle plate is hinged with the bottom surface of the transverse pipeline, the other end of the metal oil baffle plate is contacted with the inner wall of the vertical pipeline, the sliding plate is arranged in the first cavity, the bottom surface of the sliding plate is connected with the bottom surface of the first box body through a spring, one end of the action rod is connected with the top surface of the sliding plate, the other end of the action rod extends out of the first cavity, the crown gear is arranged on one side of the transverse pipeline, a magnet block is arranged on the side of the crown gear, which is not provided with teeth, the magnet block is positioned outside the metal oil baffle plate, and a rack is arranged on the side wall of the action rod extending out of the crown gear; the side wall of the second cavity is provided with a sliding groove, and the side wall of the sliding plate is provided with a sliding block which is arranged in the sliding groove.
2. The advanced oil chromatography diagnostic apparatus as claimed in claim 1, further comprising a rotating shaft, wherein a fixing plate is arranged on the top surface of the oil collecting tank, a bearing is arranged on the fixing plate, the rotating shaft is connected with the bearing, and the crown gear is connected with the bearing.
3. The oil chromatography advanced diagnosis device according to claim 1, further comprising an air pumping tube and an air pump, wherein the air pumping tube is communicated with the second cavity, and the air pump is connected with the air pumping tube.
4. The advanced diagnostic apparatus for oil chromatography as set forth in claim 1, wherein said oil collecting tank side wall is provided with an oil discharge port, said oil discharge port communicating with said first chamber and provided with a valve.
5. The advanced diagnostic apparatus for oil chromatography as claimed in claim 1, wherein the bottom of the oil collecting tank is provided with a driving wheel.
6. The advanced oil chromatography diagnostic device as claimed in claim 1, further comprising an electric push rod, wherein the electric push rod is arranged in the first cavity, an output shaft of the electric push rod is connected with a partition plate, and the partition plate is slidably connected with the side wall of the oil collecting tank.
7. The advanced diagnostic apparatus for oil chromatography as claimed in claim 6, wherein the side wall of the oil collecting tank is provided with a plurality of positioning slots, and the side wall of the partition is provided with elastic beads which are inserted into the positioning slots.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256604.4A CN112255359B (en) | 2020-11-11 | 2020-11-11 | Oil chromatography advanced diagnostic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011256604.4A CN112255359B (en) | 2020-11-11 | 2020-11-11 | Oil chromatography advanced diagnostic device |
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| CN112255359A CN112255359A (en) | 2021-01-22 |
| CN112255359B true CN112255359B (en) | 2021-11-09 |
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| CN202011256604.4A Active CN112255359B (en) | 2020-11-11 | 2020-11-11 | Oil chromatography advanced diagnostic device |
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| CN114172027B (en) * | 2021-11-25 | 2023-12-29 | 海南电网有限责任公司三亚供电局 | Insulating oil collecting device of oil immersed transformer |
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| EP0158315A2 (en) * | 1984-04-09 | 1985-10-16 | Mitsubishi Denki Kabushiki Kaisha | Loading mechanism for a magnetic disk device |
| CN104069906A (en) * | 2014-07-23 | 2014-10-01 | 衢州毛陈化工科技有限公司 | Stable liquid-out device of high-pressure box body |
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| CN108152076A (en) * | 2017-12-11 | 2018-06-12 | 百奥森（江苏）食品安全科技有限公司 | A kind of TDS water quality detections quantitative sampling device |
| CN108717892A (en) * | 2018-06-19 | 2018-10-30 | 贵州金林电子科技有限公司 | A kind of transformer that the rainy day refuels |
| CN110186030A (en) * | 2019-06-18 | 2019-08-30 | 西拓能源集团有限公司 | Power generating plants are boiler dedicated |
| CN210261567U (en) * | 2019-07-25 | 2020-04-07 | 赣州中安复合材料有限公司 | Sizing agent flow control device |
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2020
- 2020-11-11 CN CN202011256604.4A patent/CN112255359B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB813674A (en) * | 1956-08-29 | 1959-05-21 | Tarukawa Tomiji | An apparatus for discharging a predetermined amount of a liquid |
| EP0158315A2 (en) * | 1984-04-09 | 1985-10-16 | Mitsubishi Denki Kabushiki Kaisha | Loading mechanism for a magnetic disk device |
| CN104069906A (en) * | 2014-07-23 | 2014-10-01 | 衢州毛陈化工科技有限公司 | Stable liquid-out device of high-pressure box body |
| CN205655903U (en) * | 2016-05-12 | 2016-10-19 | 广州市优品化妆品科技有限公司 | Emulsion weighing device |
| CN108152076A (en) * | 2017-12-11 | 2018-06-12 | 百奥森（江苏）食品安全科技有限公司 | A kind of TDS water quality detections quantitative sampling device |
| CN108717892A (en) * | 2018-06-19 | 2018-10-30 | 贵州金林电子科技有限公司 | A kind of transformer that the rainy day refuels |
| CN110186030A (en) * | 2019-06-18 | 2019-08-30 | 西拓能源集团有限公司 | Power generating plants are boiler dedicated |
| CN210261567U (en) * | 2019-07-25 | 2020-04-07 | 赣州中安复合材料有限公司 | Sizing agent flow control device |
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Effective date of registration: 20230725 Address after: 570101 Room 506, Huayu Building, Haifu Yiheng Road, Meilan District, Haikou City, Hainan Province Patentee after: Hainan Electric Power Industry Development Co.,Ltd. Address before: No.23, hairuihou Road, Longhua District, Haikou City, Hainan Province, 570100 Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. |