CN214789628U - Oil circuit of fixed fire extinguishing device of oil-immersed transformer - Google Patents
Oil circuit of fixed fire extinguishing device of oil-immersed transformer Download PDFInfo
- Publication number
- CN214789628U CN214789628U CN202022490941.1U CN202022490941U CN214789628U CN 214789628 U CN214789628 U CN 214789628U CN 202022490941 U CN202022490941 U CN 202022490941U CN 214789628 U CN214789628 U CN 214789628U
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- China
- Prior art keywords
- flange
- oil
- sealing rubber
- rubber gasket
- butt joint
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- 238000007789 sealing Methods 0.000 claims abstract description 30
- 229920001971 elastomer Polymers 0.000 claims abstract description 28
- 210000001503 joint Anatomy 0.000 claims abstract description 22
- 238000001125 extrusion Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 101100495256 Caenorhabditis elegans mat-3 gene Proteins 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- -1 acrylic ester Chemical class 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a fixed extinguishing device's of oil-immersed transformer oil circuit, including many oil pipes through flange and sealed cushion butt joint each other, two flanges of adjacent oil pipe butt joint department are flange and planar flange respectively, inlay the dress in the recess of flange the sealed cushion is through lieing in recess outlying bolted connection fastening, sealed cushion is in axial extrusion state after two flange butt joints. The butt joint face of adjacent oil pipe is concave surface + planar mode, and extrudees in the concave surface and inlays the dress and seal the cushion, and two flange butt joints back, and it is spacing that sealed cushion is fluted around, and the axial is spacing by two flange extrusion, as long as the connecting bolt between two flanges does not appear becoming flexible, sealed cushion just can not appear sliding and not hard up phenomenon, can play fine sealed effect, makes the phenomenon of oil leakage basically can not appear in the butt joint department. The sealing rubber gasket is packaged in the groove, so that the axial compression amount of the sealing rubber gasket can be controlled conveniently, the sealing performance in the use process is guaranteed, and the practical service life of the sealing rubber gasket can be prolonged.
Description
Technical Field
The utility model relates to an oil-immersed transformer, concretely relates to fixed extinguishing device's of oil-immersed transformer oil circuit.
Background
The oil-discharging nitrogen-injecting fire extinguishing device is one of the mainstream fixed fire extinguishing devices of the oil-immersed transformer, the built-in amount of the oil-discharging nitrogen-injecting fire extinguishing device in a power system is large, and once the problem of oil leakage occurs, the safe and reliable operation of the transformer is directly influenced. There are about 21-25 flange butt joint faces on the oil circuit that oil extraction nitrogen injection device and transformer body oil tank link to each other, and convex surface + convex surface or convex surface + concave surface's mode is adopted mostly to current butt joint face, exists difficult location, easily causes sealed slip of pad and oil leakage problem in the installation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a butt joint is convenient and can guarantee the fixed extinguishing device's of oil-immersed transformer oil circuit of sealed effect.
The utility model provides a fixed extinguishing device's of oil-immersed transformer oil circuit, including many oil pipes through flange and sealed cushion butt joint each other, two flanges of adjacent oil pipe butt joint department are concave flange and planar flange respectively, inlay the dress in the recess of concave flange sealed cushion, through lieing in recess outlying bolted connection fastening, sealed cushion is in the axial extrusion state after concave flange and the planar flange butt joint.
In an embodiment of the foregoing technical solution, the planar size and the thickness size of the sealing rubber gasket are both the corresponding sizes of the groove of the concave flange.
In one embodiment of the above technical solution, an initial thickness of the sealing rubber pad is 1.3 to 1.35 times a depth of the groove.
In an embodiment of the above technical solution, one end of each oil pipe is connected to the concave flange, and the other end is connected to the planar flange.
In an embodiment of the above technical solution, the oil pipes are divided into two types according to the total number, two ends of one type of oil pipe are respectively connected to the concave flange, two ends of the other type of oil pipe are respectively connected to the planar flange, and the two types of oil pipes are alternately arranged and butted.
In an embodiment of the foregoing technical solution, the bolt mounting holes on the concave flange and the planar flange are arranged in a span.
The utility model discloses adopt concave flange and planar flange with adjacent oil pipe flange, make the butt joint face be concave surface + planar mode, and extrude in the concave surface and inlay the dress and seal the cushion, two flange butt joints back, it is spacing to be fluted around the sealed cushion, the axial is spacing by two flange extrusions, as long as connecting bolt between two flanges is not hard up, sealed cushion just can not appear sliding and not hard up phenomenon, can play fine sealed effect, the phenomenon of oil leakage can not appear basically in messenger's butt joint department. In addition, the sealing rubber gasket is packaged in the groove, so that the axial compression amount of the sealing rubber gasket is conveniently controlled, the sealing performance in a long-time use process is ensured, the aging speed of the sealing rubber gasket can be reduced, and the service life of the sealing rubber gasket is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a docking node according to an embodiment of the present invention (connection bolt is not shown).
Fig. 2 is a right-side schematic view of the flange of the concave structure in fig. 1 with a gasket fitted therein.
Fig. 3 is a side view of the flange of fig. 1 with the mating side being flat.
Detailed Description
As shown in fig. 1, the oil path of the oil-immersed transformer fire extinguishing apparatus disclosed in this embodiment includes an oil pipe 1, a concave flange 2, a sealing rubber mat 3 and a planar flange 4, the number of the oil pipe 1 is plural, the concave flange 2 and the planar flange 4 are respectively connected to the end of the oil pipe 1, and when adjacent oil pipes are butted, the sealing rubber mat 3 is embedded in a groove of the concave flange 2.
The groove side of the concave flange 2 serves as the abutment side.
The central hole of the sealing rubber gasket 3 corresponds to the aperture of the oil pipe 1, the outer diameter is slightly larger than the outer diameter of the groove, when the sealing rubber gasket is filled in the groove of the concave flange, the outer edge is extruded and deformed to a certain extent, the radial movement of the sealing rubber gasket is avoided, the initial thickness of the sealing rubber gasket is larger than the depth of the groove, and the initial thickness of the sealing rubber gasket is preferably 1.3-1.35 times of the depth of the groove.
The sealing rubber pad 3 can be made of butadiene-acrylonitrile rubber and acrylic ester materials, so that the long service life of the sealing rubber pad is ensured.
When the oil pipes are connected with the flanges, the concave flange 2 and the plane flange 3 can be respectively connected to the two ends of all the oil pipes, and the oil pipes are butted through the concave flange and the plane flange in sequence to form an oil way.
The oil pipes can be divided into two types according to the total number of the oil pipes, the two ends of one type of oil pipe are respectively connected with the concave flange 2, the two ends of the other type of oil pipe are respectively connected with the plane flange 3, and the two types of oil pipes are connected in a staggered mode to form oil passages.
When the oil circuit is connected, firstly, the sealing rubber gasket 3 is filled in the groove of the concave flange 2, and then the adjacent oil pipes are fixedly connected through the concave flange 2 and the plane flange 4 through bolts. Bolt mounting hole AZK is all seted up in the relevant position department of two flanges, for the convenience of spanner fastening bolt's operation, make the even external load effect that receives of bolt simultaneously, adopt the bolt mounting hole to stride as shown in figure 2 and figure 3 and arrange, and this kind is arranged another kind of benefit in addition, the oil circuit is when using back sealed cushion for a long time to appear ageing, the oil leakage oil of butt joint can not directly flow on the bolt, avoid the bolt to appear becoming flexible and enlarge the seepage, and more do benefit to the timely discovery seepage situation of tour personnel and in time maintain.
The butt flange of adjacent oil pipe of this oil circuit adopts concave surface flange and planar flange, makes the butt joint face be concave surface + planar mode, and extrudees in the concave surface and inlays dress sealed cushion, two flange butt joints back, it is spacing to have a recess around the sealed cushion, the axial is spacing by two flange extrusion, as long as the connecting bolt between two flanges is not hard up, the phenomenon that sealed cushion just can not appear sliding and not hard up, can play fine sealed effect, the phenomenon of oil leakage can not appear basically in messenger's butt joint department. In addition, the sealing rubber gasket is packaged in the groove, so that the axial compression amount of the sealing rubber gasket is conveniently controlled, the sealing performance in a long-time use process is ensured, the aging speed of the sealing rubber gasket can be reduced, and the service life of the sealing rubber gasket is prolonged.
Claims (4)
1. The utility model provides an oil-immersed transformer fixes extinguishing device's oil circuit, includes many oil pipes through flange and sealed cushion butt joint each other, its characterized in that: two flanges at the butt joint of adjacent oil pipes are respectively a concave flange and a plane flange, the sealing rubber gasket is embedded in a groove of the concave flange, the concave flange and the plane flange are connected and fastened through bolts positioned on the periphery of the groove after being in butt joint, and the sealing rubber gasket is in an axial extrusion state;
the plane size and the thickness size of the sealing rubber gasket are both larger than the corresponding size of the groove of the concave flange;
the initial thickness dimension of the sealing rubber gasket is 1.3-1.35 times of the depth of the groove.
2. The oil circuit of the oil-immersed transformer fixed fire extinguishing apparatus according to claim 1, wherein: one end of each oil pipe is connected with the concave flange, and the other end of each oil pipe is connected with the plane flange.
3. The oil circuit of the oil-immersed transformer fixed fire extinguishing apparatus according to claim 1, wherein: the oil pipes are divided into two types according to the total number, two ends of one type of oil pipe are respectively connected with the concave flange, two ends of the other type of oil pipe are respectively connected with the plane flange, and the two types of oil pipes are alternately arranged and butted.
4. The oil circuit of the oil-immersed transformer fixed fire extinguishing apparatus according to claim 1, wherein: and bolt mounting holes on the concave flange and the plane flange are arranged in a span way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022490941.1U CN214789628U (en) | 2020-11-02 | 2020-11-02 | Oil circuit of fixed fire extinguishing device of oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022490941.1U CN214789628U (en) | 2020-11-02 | 2020-11-02 | Oil circuit of fixed fire extinguishing device of oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214789628U true CN214789628U (en) | 2021-11-19 |
Family
ID=78664815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022490941.1U Active CN214789628U (en) | 2020-11-02 | 2020-11-02 | Oil circuit of fixed fire extinguishing device of oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214789628U (en) |
-
2020
- 2020-11-02 CN CN202022490941.1U patent/CN214789628U/en active Active
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