CN206617678U - A kind of end cover of combustion chamber flange connection - Google Patents
A kind of end cover of combustion chamber flange connection Download PDFInfo
- Publication number
- CN206617678U CN206617678U CN201720251159.XU CN201720251159U CN206617678U CN 206617678 U CN206617678 U CN 206617678U CN 201720251159 U CN201720251159 U CN 201720251159U CN 206617678 U CN206617678 U CN 206617678U
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- flange
- connecting pipe
- bulge loop
- ring
- pipe sleeve
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Abstract
The utility model discloses a kind of end cover of combustion chamber flange connection, the first flange and second flange include pipe sleeve and form in the ring flange of pipe sleeve periphery, annular mounting groove is reserved with the pipe sleeve end face of wherein described first flange, the inner side cell wall of the annular mounting groove inwardly rolls oblique, the aprons slot for being used to install O-ring seal for being close to pipe sleeve outer wall, and thickness of the depth more than O-ring seal of the aprons slot are reserved with ring flange simultaneously；The bulge loop docked with the annular mounting groove is formed with the pipe sleeve end face of the second flange, the bulge loop has inside and outside double-deck, wherein bulge loop outer layer is aluminium alloy, its bulge loop internal layer is stainless steel, the ring flange of the second flange pipe is also formed with the flange collar coordinated with aprons slot, and the flange collar is put in aprons slot and top pressure O-ring seal after installation.
Description
Technical field
The utility model is related to gas turbine technology field, more particularly to a kind of end cover of combustion chamber flange connection.
Background technology
The end cover of combustion chamber of gas turbine is chronically under hot environment, the pipeline and flange being connected with end cover of combustion chamber
Similarly it is chronically in hot environment, because material is in the case of heated, there is the thermal expansion of different situations, because heat is swollen
The difference of swollen coefficient, can make flexural deformation, the sealing of respective flange structure occur between part.In addition, existing flange knot
Its sealing ring of structure can directly be contacted with the fluid in pipeline, for the pipeline of connection end cover of combustion chamber, in its pipeline
Fluid often also HTHP, O-ring seal is contacted with the fluid of HTHP for a long time can seriously reduce its durability.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and there is provided a kind of structure is novel, sealing is strong, resistance to height
The strong end cover of combustion chamber flange connection of warm nature.
In order to realize the above object the technical scheme that the utility model is used is：
A kind of end cover of combustion chamber flange connection, including the first connecting pipe, the second connecting pipe, it is arranged at described
The first flange of one connecting pipe and the second flange for being arranged at second connecting pipe, described the first connecting pipe with
Second connecting pipe carries out flange by first flange and second flange and is connected, and the first flange and second flange are wrapped
Include pipe sleeve and form in the ring flange of pipe sleeve periphery, wherein annular mounting groove is reserved with the pipe sleeve end face of the first flange,
The inner side cell wall of the annular mounting groove is inwardly rolled tiltedly, is close to being used for for pipe sleeve outer wall while being reserved with ring flange
The aprons slot of O-ring seal, and thickness of the depth more than O-ring seal of the aprons slot are installed；The pipe of the second flange
The bulge loop docked with the annular mounting groove is formed with set end face, the bulge loop has inside and outside bilayer, and wherein bulge loop outer layer is
Aluminium alloy, its bulge loop internal layer is stainless steel, and the ring flange of the second flange pipe is also formed with the flange collar coordinated with aprons slot, peace
The flange collar is put in aprons slot and top pressure O-ring seal after dress.
Further, the installation through-hole that multiple confession bolts are passed through is provided with the ring flange.
Further, it is connected through a screw thread between the first flange and the first connecting pipe, the second flange and second
It is connected through a screw thread between connecting pipe.
Further, by being welded to connect between the first flange and the first connecting pipe, the second flange and second
By being welded to connect between connecting pipe.
The beneficial effects of the utility model are：Pass through between first connecting pipe and the second connecting pipe of the present utility model
After first flange is connected with second flange progress flange, annular mounting groove can be docked and shape one by one with bulge loop, aprons slot with flange collar
Into dual sealing structure, wherein bulge loop has inside and outside bilayer, and wherein bulge loop outer layer is aluminium alloy, and its bulge loop internal layer is stainless
Steel, because the thermal coefficient of expansion of aluminium alloy is more than stainless steel, therefore bulge loop curves inwardly in high temperature environments, while again due to ring
The inner side cell wall of shape mounting groove is inwardly rolled tiltedly, therefore interior curved bulge loop can sting tight annular mounting groove, further improve sealing.
In addition, again because aprons slot and flange collar are as the second resealing structure, the fluid of its O-ring seal and HTHP does not connect directly
Touch, improve the durability of O-ring seal.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model.
Fig. 2 is the attachment structure schematic diagram of first flange of the present utility model and second flange.
Fig. 3 is Fig. 2 exploded view.
The partial enlarged drawing that Fig. 4 is region A in Fig. 2.
Fig. 5 is the schematic diagram that bulge loop of the present utility model is deformed at high temperature.
Wherein, 1- end cover bodies, the connecting pipes of 2a- first, the connecting pipes of 2b- second, 3a- first flanges, the methods of 3b- second
Orchid, 31- pipe sleeves, 311- annular mounting grooves, 312- bulge loops, 32- ring flanges, 321- aprons slots, 322- O-ring seals, 323- is convex
Circle, 324- installation through-holes.
Embodiment
The utility model technical scheme claimed is made further specifically in conjunction with the drawings and specific embodiments
It is bright.
Referring to shown in accompanying drawing 1, the end cover of combustion chamber flange connection in the present embodiment connects including end cover body 1, first
Adapter road 2a, the second connecting pipe 2b, the first flange 3a for being arranged at the first connecting pipe 2a and it is arranged at described
Two connecting pipe 2b second flange 3b.In the present embodiment, screw thread is passed through between first flange 3a and the first connecting pipe 2a
Connection, is connected through a screw thread between the second flange 3b and the second connecting pipe 2b.In other embodiments, first flange 3a
Between the first connecting pipe 2a and can also be by being welded to connect between second flange 3b and the second connecting pipe 2b.
Referring to shown in accompanying drawing 2 to accompanying drawing 4, the first connecting pipe 2a one end and end cover body 1 are welded, the first connection
The pipeline 2a other end carries out flange with the second connecting pipe 2b and is connected, and enters in particular by first flange 3a with second flange 3b
Row flange is connected.First flange 3a and second flange 3b include pipe sleeve 31 and form in the ring flange 32 of the periphery of pipe sleeve 31,
Multiple one-to-one installation through-holes 324 are provided with the present embodiment on first flange 3a and second flange 3b ring flange 32 to supply
Bolt is passed through, and first flange 3a and second flange 3b installation through-hole 324 is corresponded when carrying out flange connection, and utilizes bolt
With nut by first flange 3a and second flange 3b connections.
Annular mounting groove 311, the inner side slot of the annular mounting groove 311 are reserved with the first flange 3a end face of pipe sleeve 31
Wall is inwardly rolled tiltedly, while being reserved with the cushion rubber for being used to install O-ring seal 322 for being close to the outer wall of pipe sleeve 31 on ring flange 32
Groove 321, and thickness of the depth more than O-ring seal 322 of the aprons slot 321；The end face of pipe sleeve 31 of the second flange 3b
On be formed with the bulge loop 312 docked with the annular mounting groove 311, the bulge loop 312 has inside and outside double-deck, wherein bulge loop 312
Outer layer is aluminium alloy, and its internal layer of bulge loop 312 is stainless steel, and the ring flange 32 of the second flange 3b pipes is also formed with and aprons slot
321 flange collars 323 coordinated, the flange collar 323 is put in aprons slot 321 and top pressure O-ring seal 322 after installation.
Referring to shown in accompanying drawing 5, in the present embodiment, bulge loop 312 has inside and outside bilayer, and the wherein outer layer of bulge loop 312 is that aluminium is closed
Gold, its internal layer of bulge loop 312 is stainless steel, because the thermal coefficient of expansion of aluminium alloy is more than stainless steel, i.e., in equal temperature change,
The length change of the internal layer of bulge loop 312 is less than the outer layer of bulge loop 312, therefore bulge loop 312 curves inwardly in high temperature environments, while again
Because the inner side cell wall of annular mounting groove 311 is inwardly rolled tiltedly, therefore interior curved bulge loop 312 can sting tight annular mounting groove 311, enter
One step improves sealing.In addition, again because aprons slot 321 and flange collar 323 are used as the second resealing structure, its O-ring seal 322
It is not directly contacted with the fluid of HTHP, improves the durability of O-ring seal 322.
Embodiment described above is only preferred embodiment of the present utility model, and any form is not done to the utility model
On limitation.Any those skilled in the art, in the case where not departing from technical solutions of the utility model ambit, using upper
The technology contents for stating announcement make more possible variations and retouching to technical solutions of the utility model, or modification is accordingly to be regarded as being equal
The equivalent embodiment of change.Therefore all contents without departing from technical solutions of the utility model, made according to the thinking of the utility model
Equivalent equivalence changes, all should be covered by protection domain of the present utility model.
Claims (4)
1. a kind of end cover of combustion chamber flange connection, including the first connecting pipe（2a）, the second connecting pipe（2b）, be arranged at
First connecting pipe（2a）First flange（3a）And it is arranged at second connecting pipe（2b）Second flange
（3b）, described the first connecting pipe（2a）With second connecting pipe（2b）Pass through first flange（3a）With second flange
（3b）Carry out flange connection, it is characterised in that：The first flange（3a）And second flange（3b）Include pipe sleeve（31）With into
Shape is in pipe sleeve（31）The ring flange of periphery（32）, wherein the first flange（3a）Pipe sleeve（31）Annular peace is reserved with end face
Tankage（311）, the annular mounting groove（311）Inner side cell wall inwardly roll it is oblique, while in ring flange（32）On be reserved with it is tight
Paste pipe sleeve（31）Outer wall be used for O-ring seal is installed（322）Aprons slot（321）, and the aprons slot（321）Depth
More than O-ring seal（322）Thickness；The second flange（3b）Pipe sleeve（31）It is formed with and is installed with the annular on end face
Groove（311）The bulge loop of docking（312）, the bulge loop（312）With inside and outside bilayer, wherein bulge loop（312）Outer layer is aluminium alloy, its
Bulge loop（312）Internal layer is stainless steel, the second flange（3b）The ring flange of pipe（32）Also it is formed with and aprons slot（321）Coordinate
Flange collar（323）, the flange collar after installation（323）Put in aprons slot（321）Interior and top pressure O-ring seal（322）.
2. a kind of end cover of combustion chamber flange connection according to claim 1, it is characterised in that：The ring flange（32）
On be provided with the installation through-hole that multiple confession bolts are passed through（324）.
3. a kind of end cover of combustion chamber flange connection according to claim 1, it is characterised in that：The first flange
（3a）With the first connecting pipe（2a）Between be connected through a screw thread, the second flange（3b）With the second connecting pipe（2b）Between
It is connected through a screw thread.
4. a kind of end cover of combustion chamber flange connection according to claim 1, it is characterised in that：The first flange
（3a）With the first connecting pipe（2a）Between by being welded to connect, the second flange（3b）With the second connecting pipe（2b）Between
By being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251159.XU CN206617678U (en) | 2017-03-15 | 2017-03-15 | A kind of end cover of combustion chamber flange connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251159.XU CN206617678U (en) | 2017-03-15 | 2017-03-15 | A kind of end cover of combustion chamber flange connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617678U true CN206617678U (en) | 2017-11-07 |
Family
ID=60232632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720251159.XU Active CN206617678U (en) | 2017-03-15 | 2017-03-15 | A kind of end cover of combustion chamber flange connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442145A (en) * | 2020-05-20 | 2020-07-24 | 张家港华日法兰有限公司 | High-pressure flange structure and machining method thereof |
-
2017
- 2017-03-15 CN CN201720251159.XU patent/CN206617678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442145A (en) * | 2020-05-20 | 2020-07-24 | 张家港华日法兰有限公司 | High-pressure flange structure and machining method thereof |
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