CN1752733A - On line separator of dissolving damage gas for use in traction transformer oil - Google Patents
On line separator of dissolving damage gas for use in traction transformer oil Download PDFInfo
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- CN1752733A CN1752733A CN 200410040740 CN200410040740A CN1752733A CN 1752733 A CN1752733 A CN 1752733A CN 200410040740 CN200410040740 CN 200410040740 CN 200410040740 A CN200410040740 A CN 200410040740A CN 1752733 A CN1752733 A CN 1752733A
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- oil
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- filtering film
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Abstract
The present invention discloses a dissolution fault gas on-line separator in the traction transformer oil. It is characterized by that in its connection cavity interior an oil-filtering membrane and an oil-filtering membrane supporting plate are radially inlaid and fixed, and the oil-filtering membrane supporting plate is positioned at one side of oil-filtering membrane close to gas chamber. Said invention can conveniently implement oil-gas on-line separation and monitoring.
Description
Affiliated technical field
The present invention relates to the on-Line Monitor Device of the large oil immersed formula tractive transformer that a kind of railway power supply system uses.
Background technology
The solid insulation of the large oil immersed formula tractive transformer in the electric railway traction power supply system and insulation wet goods material, the load that withstands shocks for a long time is subjected to multifactor synergy such as electricity, heat, machinery, environment and aging cracking generation gas; Can produce various fault signature gases during especially transformer insulated breaking down.These gas dissolvings by composition and the content of analyzing them, can be carried out state estimation and fault diagnosis to transformer in the insulating oil of transformer.Existing analytical equipment, as the mechanical type vacuum degasser, the vibration degasser, the bellows degasser, complex structure, cost height are not suitable for dissolving failure gas on-line monitoring in the oil of traction transformer.In addition, adopt gas dialysis mode to carry out the device that gas separates, cost decreases, but because the gas dialysis membrane is subjected to well cuts and influence of temperature variation easily, its resistance tocrocking is poor, low precision, very easily damage, the life-span is low, need the higher gas dialysis membrane of frequent replacement cost, use, safeguard extremely inconvenience.Simultaneously, existing apparatus all can not detect in the oil temperature variation and carry out the detection of micro-water content in the oil.And tractive transformer is in when work, and oily temperature is subjected to multiple factor affecting such as environment temperature, impact load variation, and the variation of oil temperature makes insulation oil dissolved gas separation case change again; Therefore, the analysis result that off-line separates is difficult to reflect truly the actual insulation situation of tractive transformer, is difficult to tractive transformer is carried out state estimation and fault diagnosis accurately.
Summary of the invention
Purpose of the present invention provides dissolving failure gas ON-LINE SEPARATION device in a kind of oil of traction transformer, and this kind ON-LINE SEPARATION device resistance tocrocking is good, cost is low, simple in structure, working service convenience, can realize oil gas ON-LINE SEPARATION and monitoring easily; Guarantee the operational reliability of tractive transformer, can be safety, the running on time that China's speed per hour reaches the above bullet train of 200km/h and lay a good foundation.
The present invention solves its technical matters, the technical scheme that is adopted is: dissolving failure gas ON-LINE SEPARATION device in a kind of oil of traction transformer, comprise columniform connection chamber, this connection chamber one end is fixedlyed connected with the fuel outlet valve valve port of transformer or the open-top screw thread of transformer bottom, the other end links to each other with columniform air chamber by bolt, air chamber other end bolt connects the air chamber cover that has valve, radially be provided with gas dialysis membrane and dialysis membrane back up pad in the air chamber, its design feature is: also radially be provided with oil-filtering film and oil-filtering film supporting plate in the connection chamber, oil-filtering film supporting plate is positioned at oil-filtering film by the air chamber one side.
Above-mentioned oil-filtering film is the teflon oil-filtering film.
The oil-filtering film of installing in the connection chamber, at first insulating oil is filtered, solid particle in the filtering oil and impurity, prevent these contaminating impurities, stop up the gas dialysis membrane, thereby improve the serviceable life and the service efficiency of gas dialysis membrane, make gas pass dialysis membrane better, enter air chamber, improve gas and separate and accuracy and the precision analyzed; Because the replacing frequency of gas dialysis membrane reduces greatly, and only needs the cheap oil-filtering film of replacement cost, the operation of whole device, O﹠M are extremely convenient, cost is low.And whole device is connected with tractive transformer is online, can realize dissolving failure gas ON-LINE SEPARATION and monitoring in the oil of traction transformer easily.
Be provided with temperature sensor in the above-mentioned connection chamber, and draw by the lead-in wire nut that is fixed on the connection chamber wall.
Be installed in temperature sensor in the connection chamber cavity and when transformer is worked, measure the temperature of insulating oil at any time, according to this temperature value is that the balance conversion constant of gas dialysis membrane is carried out the real-time online temperature correction, can calculate the content of the gas in insulating oil when online more accurately, assess the duty of transformer exactly.
Also be provided with humidity sensor in the above-mentioned connection chamber, also draw by the lead-in wire nut that is fixed on the connection chamber wall.
The content of the little water in the temperature sensor measurement insulating oil, this value are used to judge the degree of making moist of transformer.More fully assessing with diagnosis for transformer work provides foundation.
The invention will be further described below in conjunction with the drawings and specific embodiments:
Accompanying drawing is the sectional structure synoptic diagram of the embodiment of the invention.
Embodiment
Accompanying drawing illustrates, a kind of embodiment of the present invention is: dissolving failure gas ON-LINE SEPARATION device in a kind of oil of traction transformer, comprise columniform connection chamber 16, these connection chamber 16 1 ends are fixedlyed connected with the fuel outlet valve valve port of transformer or the open-top screw thread of transformer bottom.The most convenient when connection chamber 16 directly is installed on the fuel outlet valve valve port, existing transformer is not done any transformation, directly remove the original valve gap in this place and change connection chamber 16 and get final product.Certainly also can be in addition at transformer bottom opening connection chamber 16.The other end of connection chamber 16 links to each other with columniform air chamber 2 by bolt 1, air chamber 2 other end bolts 1 connect the air chamber cover 7 that has valve 6, radially be provided with gas dialysis membrane 9 and dialysis membrane back up pad 8 in the air chamber 2, its design feature is: also radially be provided with oil-filtering film 13 and oil-filtering film supporting plate 14 in the connection chamber 16, oil-filtering film supporting plate 14 is positioned at oil-filtering film 13 by air chamber 2 one sides.Oil-filtering film supporting plate 14 and dialysis membrane back up pad 8 are latticed, with the function of guaranteeing to filter or breathe freely.
The concrete grammar that oil-filtering film supporting plate 14 and oil-filtering film 13 radially are arranged in the connection chamber 16 is: the two is mounted in connection chamber 16 in the annular groove that the chamber of the chamber of air chamber 2 ends wall round platform and air chamber 2 wall forms, for guaranteeing positiver sealing, can packing ring 15 be set in a side of this annular groove, opposite side is provided with zero shape circle 3.The set-up mode of oil-filtering film 13 also can adopt screw thread, mode such as bonding.In addition, gas dialysis membrane 9 also is to be fixed in the annular groove at air chamber cover and air chamber end wall place in the build-in mode, is provided with zero shape circle 5 equally at this build-in place.
Oil-filtering film 13 of the present invention adopts the teflon oil-filtering film.Gas dialysis membrane 9 can adopt polyimide C1 dialysis membrane.Humidity sensor 11 can adopt capacitance type humidity sensor.
Be provided with temperature sensor 11 in the connection chamber 16, and draw by the lead-in wire nut 10 that is fixed on connection chamber 16 walls.Also be provided with humidity sensor 12 in the connection chamber 16, also draw by the lead-in wire nut 10 that is fixed on connection chamber 16 walls.The structure of this lead-in wire nut 10 is an existing structure, and it can either draw lead from the center can form good being sealedly and fixedly connected with connection chamber 16 again.
The course of work of online oil-gas separator of the present invention is: an end of connection chamber 16 can be used by the valve opening of draining the oil that bolt 1 is fixedly attached to transformer, insulating oil enters connection chamber 16, after earlier filtering out wherein solid particle and impurity such as hydrocarbon via oil-filtering film 13, clean insulating oil enters in the air chamber 2, to prevent the gas dialysis membrane 9 in the contaminating impurity air chamber in the oil.Gas dialysis membrane 9 with filter after oil closely contact, the oil molecule radius is big, can not pass through gas dialysis membrane 9; And the oil dissolved gas molecular radius is little, can pass through gas dialysis membrane 9, under the effect of concentration difference, the dissolved gas molecule infiltration is in air chamber 2, reach the purpose of gas-oil separation, divided gas flow in the air chamber 17 links to each other with the external analysis monitoring instrument by valve 6 gas concentration is detected, and is installed in the temperature and humidity that temperature sensor 11 in the connection chamber 16 and humidity sensor 12 are measured insulating oil simultaneously.
The online temperature t of the insulating oil that temperature sensor 11 records should online temperature t value be imported in the computational analysis instrument, is used for the balance conversion coefficient K t of correcting gas dialysis membrane
Kt＝A(t-t
0)+K
0
Wherein A is a linear coefficient, K
0Be t
0Balance conversion coefficient under the temperature, they all can be obtained by experiment.Gas concentration P in Kt that calculates by following formula and the air chamber 6 that measures, then can by the computational analysis instrument by following formula calculate fuel-displaced in gas concentration ψ:
ψ＝P/(9.87Kt)
Can analyze the degree that (insulation) transformer makes moist by the humidity that humidity sensor 12 is recorded, estimate its duty more comprehensively.
Claims (4)
1, dissolving failure gas ON-LINE SEPARATION device in a kind of oil of traction transformer, comprise columniform connection chamber (16), these connection chamber (16) one ends are fixedlyed connected with the fuel outlet valve valve port of transformer or the open-top screw thread of transformer bottom, the other end links to each other with columniform air chamber (2) by bolt (1), air chamber (2) other end bolt (1) connects the air chamber cover (7) that has valve (6), in the air chamber (2) radially build-in gas dialysis membrane (9) and dialysis membrane back up pad (8) are arranged, it is characterized in that: also radially be provided with oil-filtering film (13) and oil-filtering film supporting plate (14) in the described connection chamber (16), oil-filtering film supporting plate (14) is positioned at oil-filtering film (13) by air chamber (2) simultaneously.
2, dissolving failure gas ON-LINE SEPARATION device in the oil of traction transformer according to claim 1, it is characterized in that: described oil-filtering film (13) is the teflon oil-filtering film.
3, dissolving failure gas ON-LINE SEPARATION device in the oil of traction transformer according to claim 1, it is characterized in that: be provided with temperature sensor (11) in the described connection chamber (16), and draw by the lead-in wire nut (10) that is fixed on connection chamber (16) wall.
4, dissolving failure gas ON-LINE SEPARATION device in the oil of traction transformer according to claim 1, it is characterized in that: also be provided with humidity sensor (12) in the described connection chamber (16), also draw by the lead-in wire nut (10) that is fixed on connection chamber (16) wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040740 CN1752733A (en) | 2004-09-24 | 2004-09-24 | On line separator of dissolving damage gas for use in traction transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410040740 CN1752733A (en) | 2004-09-24 | 2004-09-24 | On line separator of dissolving damage gas for use in traction transformer oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1752733A true CN1752733A (en) | 2006-03-29 |
Family
ID=36679676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410040740 Pending CN1752733A (en) | 2004-09-24 | 2004-09-24 | On line separator of dissolving damage gas for use in traction transformer oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1752733A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580357A (en) * | 2012-01-01 | 2012-07-18 | 吉林省电力有限公司白城供电公司 | Harmful gas separating device of oil-immersed power transformer |
| CN103603706A (en) * | 2013-11-25 | 2014-02-26 | 广西玉柴机器股份有限公司 | Engine crankcase oil-gas separator |
| CN107014984A (en) * | 2015-12-10 | 2017-08-04 | 通用电气公司 | The method and system extracted for the selective hydrogen that dissolved gas analysis is applied |
-
2004
- 2004-09-24 CN CN 200410040740 patent/CN1752733A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580357A (en) * | 2012-01-01 | 2012-07-18 | 吉林省电力有限公司白城供电公司 | Harmful gas separating device of oil-immersed power transformer |
| CN102580357B (en) * | 2012-01-01 | 2014-03-12 | 东北电力大学 | Harmful gas separating device of oil-immersed power transformer |
| CN103603706A (en) * | 2013-11-25 | 2014-02-26 | 广西玉柴机器股份有限公司 | Engine crankcase oil-gas separator |
| CN107014984A (en) * | 2015-12-10 | 2017-08-04 | 通用电气公司 | The method and system extracted for the selective hydrogen that dissolved gas analysis is applied |
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