CN102139185A - Membrane device for monitoring separation of dissolved gases in transformer oil on line - Google Patents
Membrane device for monitoring separation of dissolved gases in transformer oil on line Download PDFInfo
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- CN102139185A CN102139185A CN2010106164755A CN201010616475A CN102139185A CN 102139185 A CN102139185 A CN 102139185A CN 2010106164755 A CN2010106164755 A CN 2010106164755A CN 201010616475 A CN201010616475 A CN 201010616475A CN 102139185 A CN102139185 A CN 102139185A
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Abstract
The invention discloses a membrane device for monitoring separation of dissolved gases in transformer oil on line. The membrane device mainly comprises a gas chamber front cover, a gas chamber rear cover, an oil chamber shell, a sleeve and a superfine pipe; the gas chamber rear cover is arranged on the oil chamber shell, the gas chamber front cover is fixed on the gas chamber rear cover, a gas chamber is formed in the gas chamber front cover, the top of the gas chamber front cover is provided with a gas inlet joint, the side wall of the gas chamber front cover is provided with a gas outlet joint, and the gas chamber is divided into an inner ring and an outer ring by the sleeve concentric with the gas chamber; the superfine pipe is arranged in the oil chamber shell in a 'U' shape, one end of the superfine pipe is in gas communication with the inner ring of the gas chamber, and the other end of the superfine pipe is in gas communication with the outer ring of the gas chamber; a gas circulating passage is formed among the gas inlet joint, the inner ring of the gas chamber, the interior of the superfine pipe, the outer ring of the gas chamber and the gas outlet joint; the side wall of the oil chamber shell is provided with an oil inlet and an oil outlet, and the oil chamber shell is sealed with the outside; and the gas chamber is air-tight with the outside, the inner ring and the outer ring of the gas chamber are in an isolation state, and the gas between inner ring and the outer ring is not communicated.
Description
Technical field
The present invention relates to a kind of gas ON-LINE SEPARATION film device, particularly a kind of shell side formula transformer oil dissolved gas ON-LINE SEPARATION film device.
Background technology
The transformer oil on-line monitoring system belongs to the emerging technology field.Traditional transformer oil fault diagnosis is to take back the chromatography that off-line is carried out in the laboratory after getting the intrinsic oil samples of large-scale filling transformer at the scene, monitor the transformer operation conditions by measuring each constituent content of insulation oil dissolved gas, relative on-line monitoring of whole process analysis procedure analysis cycle length consuming time, transportation range is far away, and manpower and materials have high input.Along with science and technology development, it is a kind of time saving and energy saving to adopt the on-line monitoring means to be undoubtedly to the monitoring of transformer running status, the method that intelligent degree is high.
The failure gas that dissolves in the transformer oil comprises hydrogen H
2, methane CH
4, ethane C
2H
6, ethene C
2H
4, acetylene C
2H
2, carbon monoxide CO, carbon dioxide CO
2, the source of these failure gas has: the decomposition of (1) insulating oil: insulating oil is made up of the hydrocarbon of many different molecular weights, and under the conditions such as high temperature in transformer and shelf depreciation, the oil molecule chemical bond rupture is reset and is produced gas; (2) decomposition of solid insulating material: the solid insulating material in the transformer also contains organic matter, chemical reaction at high temperature also can take place produce gas; (3) moisture content in the oil, paint, illumination etc. also can bring gas.For the comparatively general method of these failure gas is with off-line machinery concussion method failure gas to be deviate to supply chromatography again, and whether the sealing that relates to degasser like this is good, the unfavorable factors such as errors of analytical results that the manual operation link causes.
Automation, intellectuality are the directions of power system development, and the appearance of transformer oil dissolved gas on-line monitoring system has reduced the link of manual operation, and automatic deaerating system has wherein well avoided the laboratory manually to shake the error that the degassing produces.
Summary of the invention
The invention provides the film device that a kind of transformer oil dissolved gas that is used for on-line monitoring is deviate from, this device is a part in the transformer oil on-line monitoring system.A kind of transformer oil dissolved gas ON-LINE SEPARATION film device mainly comprises: air chamber protecgulum, air chamber bonnet, grease chamber's housing, sleeve, ultra-fine pipe; Described air chamber bonnet is arranged on the described grease chamber housing, the air chamber protecgulum is fixed on the air chamber bonnet, is air chamber in the described air chamber protecgulum, and the top of air chamber protecgulum is provided with air inlet, air chamber protecgulum sidewall is provided with the gas outlet, and described air chamber is divided into inner ring and outer ring by concentric with it sleeve; Described ultra-fine pipe becomes " U " shape to be arranged in grease chamber's housing an end of ultra-fine pipe and air chamber inner ring gas UNICOM, the other end and air chamber outer ring gas UNICOM; In inlet suction port-air chamber inner ring-ultra-fine pipe-form the gas circulation path between air chamber outer ring-air outlet adapter; The sidewall of described grease chamber housing is provided with oil-in and oil-out, realizes sealing between the grease chamber's housing and the external world; Being hermetic seal between the described air chamber and the external world, is isolation between described air chamber inner ring and the outer ring, and gas is not communicated with between the two.
Further, described ON-LINE SEPARATION film device also comprises ultra-fine pipe fixing device; Described ultra-fine pipe fixing device comprises: two identical, the metallic supports that mirror image is provided with, and be arranged on two sheet rubbers between the metallic supports, be provided with the disk of three circle small through hole of concentric setting on described metallic supports and the sheet rubber, the circular hole number of interior circular hole circle and the circular hole of middle circular hole circle are counted the circular hole number that sum should equal outer circular hole circle, wherein the diameter of circular hole circle is less than described sleeve diameter, and the diameter of described outer circular hole circle is greater than described sleeve diameter.
Further, an end of described ultra-fine pipe be arranged on described in certain circular hole in circular hole circle or the middle circular hole circle, the other end is arranged in certain circular hole of outer circular hole circle.
Further, also be provided with annular tenon on described metallic supports surface.
Further, described gas outlet and air inlet are provided with Swagelok cutting ferrule joint.
Further, also be provided with thief hatch on the sidewall of described air chamber protecgulum, also be provided with Swagelok cutting ferrule joint on the described thief hatch.
Further, be provided with Swagelok cutting ferrule joint on described oil-in and the oil-out.
Further, the material of described ultra-fine pipe is a polytetrafluoroethylene PTFE.
Further, described grease chamber housing side bottom is provided with the installation draw-in groove, described installation draw-in groove and installation are clasped the ON-LINE SEPARATION film device are fixed on other equipment, and described installation is buckled in the described installation draw-in groove and is free to slide, and install along radius optional position, the buckle installing hole center of circle.
The film device that the transformer oil dissolved gas of the on-line monitoring among the present invention is deviate from is exclusively used in and is dissolved in deviating from of oil gas body, lossless during its work, do not produce secondary pollution, can at short notice oil dissolved gas be deviate from, for on-line monitoring system provides real-time gas analysis.
Description of drawings
Fig. 1 is a transformer oil dissolved gas ON-LINE SEPARATION film device;
Fig. 2 is an air chamber front-cover structure schematic diagram;
Fig. 3 is an air chamber rear cover structure schematic diagram;
Fig. 4 is grease chamber's shell structure schematic diagram;
Fig. 5 is the structure vertical view of support member;
Fig. 6 is an A-A cutaway view among Fig. 5.
The specific embodiment
As shown in fig. 1, transformer oil dissolved gas ON-LINE SEPARATION film device mainly comprises: air chamber protecgulum 3, air chamber bonnet 4, grease chamber's housing 6, sleeve 1, ultra-fine pipe fixing device and ultra-fine pipe 9.
As shown in Figure 2, air chamber protecgulum 3 is the tubular article with certain altitude of an end opening, end sealing, columniform air chamber of its inner formation.The sidewall of air chamber protecgulum 3 is provided with the radial symmetric setting along air chamber protecgulum 3 of gas outlet 2 and 14, two mouths of thief hatch; The end face center of its blind end is provided with an air inlet 15; Its openend also is provided with the flange that usefulness is installed.Be provided with Swagelok stainless steel cutting ferrule joint on gas outlet 2, thief hatch 14 and the air inlet 15, the cutting ferrule joint is by the NPT screw thread or be welded on the air chamber protecgulum 3.On the end face of air chamber protecgulum 3 openend sidewalls, along circumferentially being provided with annular groove 31, in annular groove, be provided with O RunddichtringO 13, be used for the hermetic seal of air chamber protecgulum 3.
As shown in Figure 3, air chamber bonnet 4 is the tubular article with certain altitude of an end opening, end sealing, and the end face of its blind end is provided with through hole, and is provided with annular groove 41 at its blind end inner surface, is provided with O RunddichtringO 42 in the groove 41.To guarantee that the oil in grease chamber's housing 6 can not leak. the openend at air chamber bonnet 4 also is provided with the flange that usefulness is installed.
As shown in Figure 4, grease chamber's housing 6 is a upper end open, the tubular article with certain altitude of bottom lock, its openend has the assembling flange, flange is provided with annular groove 61, is provided with sealing ring 17 in the groove 61, to guarantee the sealing between the grease chamber and the external world.Housing 6 sidewalls in grease chamber's are provided with oil-out 10 and oil-in 7; Two mouths are along the radial symmetric setting of grease chamber's housing 6, and oil-in 7 and oil-out 10 all can be installed Swagelok stainless steel cutting ferrule joint or other kind joints by the mode of NPT screw thread or welding.The sidewall outer surface of grease chamber's housing 6 also is provided with a circle near the place, bottom draw-in groove 62 is installed, and is used to install buckle 8.Buckle 8 cooperates with installation draw-in groove 62 the degassing film device is connected with other equipment, and buckle 8 can be free to slide in draw-in groove 62 is installed, and installs along radius optional position, the buckle installing hole center of circle.
Ultra-fine pipe fixing device is made up of metallic supports 5,11 and rubber molding spare 12, the structure of two metallic supports 5,11 is identical, as shown in Fig. 5,6, have the disk of three circle small sircle holes 52,53,54 of concentric setting for having certain thickness, centre, and on one surface, also be provided with annular tenon 51, small sircle hole on the metallic supports 5,11 is through hole, interior circular hole circle 52 circular holes are counted n1 and middle circular hole circle 53 circular holes and are counted the circular hole that the n2 sum should equal outer circular hole circle 54 and count n3, i.e. n1+n2=n3.。Rubber molding spare 12 is identical with two metallic supports 5,11 size, has certain thickness fluorosioloxane rubber profiled member, and also has the three circles little round tube hole identical with metallic supports 5,11 in the relevant position.During assembling, two metallic supports 5,11 are made mirror image and are installed, the one side that does not have tenon is relative, rubber molding spare 12 is arranged between two metallic supports 5,11, small sircle hole alignment on the three, the assembling back has tenon and the little round tube hole of three circles by the upper and lower surface of the ultra-fine pipe fixing device that the three forms.
As shown in Figure 1, some ultra-fine pipes 9 are formed several ultra-fine tube banks, and the ultra-fine pipe of every bundle all curves " U " shape, is installed on the ultra-fine pipe fixing device of two metallic supports 5,11 and rubber molding spare 12 formations.Concrete mounting means is: an end of a branch of ultra-fine pipe 9 inserts in certain circular hole of ultra-fine pipe fixing device inner ring or centre circle, and it is concordant with the upper surface of ultra-fine pipe fixing device, the other end inserts in certain circular hole of outer ring, and is also concordant with the upper surface of ultra-fine pipe fixing device.The length of ultra-fine tube bank should be set according to the height of grease chamber's housing 6, make ultra-fine tube bank be arranged on grease chamber's housing 6 after, its " U " type bottom is near housing bottom surface, grease chamber.
As shown in Figure 1, air chamber bonnet 4 is arranged on grease chamber's housing 6, and ultra-fine pipe fixing device is arranged in the air chamber bonnet 4, and the tenon 51 on the metallic supports 11 is stuck in the groove 41 of air chamber bonnet 4 end faces.Ultra-fine pipe 9 passes by the through hole of air chamber bonnet 4 bottoms, is positioned at grease chamber's housing 6.Air chamber protecgulum 3 is arranged on the air chamber bonnet 4, and the flange by its openend is fixed with air chamber bonnet 4 and grease chamber's housing 6.The inside of air chamber protecgulum 3, be provided with a sleeve 1 concentric with air chamber protecgulum 3, after air chamber protecgulum 3 and air chamber bonnet 4 installed, sleeve 1 is divided into inner ring 32a and outer ring 32b with the air chamber that forms in the air chamber protecgulum 3, the diameter of sleeve 1 is greater than the diameter of the middle circular hole circle of metallic supports 5,11, less than the diameter of outer circular hole circle, gas is not communicated with between air chamber inner ring 32a and the 32b outer ring, outer ring.Gas is being flowed in the ultra-fine pipe of inlet suction port 15-air chamber inner ring 32a-9 inside-air chamber outer ring 32b-air outlet adapter 2 formation gas circulation paths again.O type circle in air chamber protecgulum 3 grooves 31 is guaranteed the sealing of air chamber, and the gas in the air chamber can not leaked.Ultra-fine pipe 9, two openend all is arranged in the ultra-fine pipe fixing device, and its openend lived by metallic supports 5,11 and fluorosioloxane rubber profiled member 12 combination sealings, and the tenon 51 on the metallic supports 5 is stuck in the groove 31 of air chamber protecgulum 3.Oil in the grease chamber can not be leaked in the air chamber.
Ultra-fine pipe among the present invention is macromolecular material PTFE, is preferably the ultra-fine pipe of polytetrafluoroethylene PTFE.
ME10 degassing film working method.
1, transformer oil enters into grease chamber's housing 6 from the oil-in 7 of grease chamber's housing 6, is discharged by oil-out 10, and the transformer oil in grease chamber's housing upgrades all the time; Dissolved gases is penetrated in the interior ultra-fine pipe 9 of submergence grease chamber housing 6 transformer oil in the transformer oil, and stores in ultra-fine pipe 9.
2, the transformer oil when circulation between the oil-in 7 of grease chamber's housing 6 and oil-out 10 reaches some, after dissolved gases is penetrated in the ultra-fine pipe 9 fully in the transformer oil, close oil-in 7 and oil-out 10, open inlet suction port 15, in sleeve 1, blow among the machine air chamber inner ring 32a, with the gas in the transformer oil of storage in ultra-fine pipe 9 and the sleeve 1, blow in the outer ring of air chamber by ultra-fine pipe 9, open air outlet adapter 2, the mist among the 32b of outer ring is outputed to measure in the relevant device and analyze.
So circulation realizes online ON-LINE SEPARATION of carrying out the transformer oil dissolved gas.
In the above-mentioned gas separation process, can manually carry out sampling analysis by sampling joint 14 to the gas in the air chamber outer ring.
The principle of the invention: after transformer oil dissolved gas content changed, the oil in grease chamber's housing was updated in real time, and same change also takes place immediately.There is concentration difference in gas in this moment and the ultra-fine pipe, and under the effect of osmotic pressure power, gas molecule can be from oil be diffused in the pipe by the ultra-fine tube wall infiltration of macromolecular material PTFE, is recycled to air chamber, reaches a dynamic real-time update.
Claims (9)
1. the film device deviate from of the transformer oil dissolved gas of an on-line monitoring is characterized by, and mainly comprises: air chamber protecgulum, air chamber bonnet, grease chamber's housing, sleeve, ultra-fine pipe; Described air chamber bonnet is arranged on the described grease chamber housing, the air chamber protecgulum is fixed on the air chamber bonnet, is air chamber in the described air chamber protecgulum, and the top of air chamber protecgulum is provided with inlet suction port, air chamber protecgulum sidewall is provided with air outlet adapter, and described air chamber is divided into inner ring and outer ring by concentric with it sleeve; Described ultra-fine pipe becomes " U " shape to be arranged in grease chamber's housing an end of ultra-fine pipe and air chamber inner ring gas UNICOM, the other end and air chamber outer ring gas UNICOM; In inlet suction port-air chamber inner ring-ultra-fine pipe-form the gas circulation path between air chamber outer ring-air outlet adapter; The sidewall of described grease chamber housing is provided with oil-in and oil-out, realizes sealing between the grease chamber's housing and the external world; Being hermetic seal between the described air chamber and the external world, is isolation between described air chamber inner ring and the outer ring, and gas is not communicated with between the two.
2. the film device of deviating from according to the transformer oil dissolved gas of on-line monitoring described in the claim 1 is characterized by, and described ON-LINE SEPARATION film device also comprises ultra-fine pipe fixing device; Described ultra-fine pipe fixing device comprises: two identical, the metallic supports that mirror image is provided with, and be arranged on two sheet rubbers between the metallic supports, be provided with the disk of three circle small through hole of concentric setting on described metallic supports and the sheet rubber, the circular hole number of interior circular hole circle and the circular hole of middle circular hole circle are counted the circular hole number that sum should equal outer circular hole circle, wherein the diameter of circular hole circle is less than described sleeve diameter, and the diameter of described outer circular hole circle is greater than described sleeve diameter.
3. according to the described film device of deviating from the transformer oil dissolved gas of on-line monitoring of claim 2, it is characterized by, one end of described ultra-fine pipe be arranged on described in certain circular hole in circular hole circle or the middle circular hole circle, the other end is arranged in certain circular hole of outer circular hole circle.
4. according to the described film device of deviating from the transformer oil dissolved gas of on-line monitoring of claim 2, it is characterized by, also be provided with annular tenon on the surface of described metallic supports.
5. the film device of deviating from according to the transformer oil dissolved gas of on-line monitoring described in the claim 1 is characterized by, and described air outlet adapter and inlet suction port are Swagelok cutting ferrule joint.
6. the film device of deviating from according to the transformer oil dissolved gas of on-line monitoring described in the claim 1 is characterized by, and also is provided with the sampling joint on the sidewall of described air chamber protecgulum, and described sampling joint is a Swagelok cutting ferrule joint.
7. the film device of deviating from according to the transformer oil dissolved gas of on-line monitoring described in the claim 1 is characterized by, and is provided with Swagelok cutting ferrule joint on described oil-in and the oil-out.
8. the film device of deviating from according to the transformer oil dissolved gas of on-line monitoring described in the claim 1 is characterized by, and the material of described ultra-fine pipe is a polytetrafluoroethylene PTFE.
9. the film device of deviating from according to the transformer oil dissolved gas of the described on-line monitoring of claim 1, it is characterized by, described grease chamber housing side bottom is provided with the installation draw-in groove, described installation draw-in groove and installation are clasped the ON-LINE SEPARATION film device are fixed on other equipment, described installation is buckled in the described installation draw-in groove and is free to slide, and installs along radius optional position, the buckle installing hole center of circle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010616475 CN102139185B (en) | 2010-12-31 | 2010-12-31 | Membrane device for monitoring separation of dissolved gases in transformer oil on line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010616475 CN102139185B (en) | 2010-12-31 | 2010-12-31 | Membrane device for monitoring separation of dissolved gases in transformer oil on line |
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| CN102139185A true CN102139185A (en) | 2011-08-03 |
| CN102139185B CN102139185B (en) | 2013-10-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991225A (en) * | 2017-12-30 | 2019-07-09 | 光力科技股份有限公司 | Transformer dissolved gas analysis device |
| CN112147100A (en) * | 2020-10-14 | 2020-12-29 | 海南电网有限责任公司电力科学研究院 | Portable device for detecting furfural in transformer oil |
| CN114530826A (en) * | 2021-12-28 | 2022-05-24 | 国电南瑞科技股份有限公司 | Transformer light gas protection method and system based on organic gas concentration characteristics |
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| CN201949819U (en) * | 2011-05-25 | 2011-08-31 | 北京华电云通电力技术有限公司 | Membrane apparatus for removing dissolved gas in online monitored transformer oil |
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| JP3157104B2 (en) * | 1995-10-06 | 2001-04-16 | 住友ベークライト株式会社 | Polyphenylene sulfide resin composition for precision molding |
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| WO2000040325A1 (en) * | 1999-01-08 | 2000-07-13 | Heggemann Gmbh | Membrane module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991225A (en) * | 2017-12-30 | 2019-07-09 | 光力科技股份有限公司 | Transformer dissolved gas analysis device |
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| CN112147100B (en) * | 2020-10-14 | 2023-11-14 | 海南电网有限责任公司电力科学研究院 | Portable device for detecting furfural in transformer oil |
| CN114530826A (en) * | 2021-12-28 | 2022-05-24 | 国电南瑞科技股份有限公司 | Transformer light gas protection method and system based on organic gas concentration characteristics |
| CN114530826B (en) * | 2021-12-28 | 2024-02-13 | 国电南瑞科技股份有限公司 | Transformer light gas protection method and system based on concentration characteristics of organic gas |
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