CN207621339U - A kind of modularization pipeline production nitrogen protection device - Google Patents
A kind of modularization pipeline production nitrogen protection device Download PDFInfo
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- CN207621339U CN207621339U CN201721843839.7U CN201721843839U CN207621339U CN 207621339 U CN207621339 U CN 207621339U CN 201721843839 U CN201721843839 U CN 201721843839U CN 207621339 U CN207621339 U CN 207621339U
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- connecting flange
- mounting holes
- bolt mounting
- pipeline
- plate portion
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- Pipe Accessories (AREA)
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Abstract
The utility model discloses a kind of modularization pipeline production nitrogen protection devices, including the first connecting flange and protection case, the first connecting flange to be sealingly fastened in the end periphery of pipeline, several first bolt mounting holes are evenly distributed on the first connecting flange；It includes the second connecting flange and protection pipe sleeve to protect case, it is cecum to protect one end of pipe sleeve, second connecting flange is welded in the other end of protection pipe sleeve, it is evenly distributed on second connecting flange and one-to-one second bolt mounting holes of the first bolt mounting holes, second bolt mounting holes are the strip-shaped hole radially extended, the location structure for facilitating positioning is provided between first connecting flange and the second connecting flange, second connecting flange and the second connecting flange be bolted and between be provided with gasket, the device is convenient to carry out nitrogen protection to pipeline, the end of pipeline is without polishing when ensuring to remove nitrogen protection device, the gap between the pipeline of docking is set to be less than 2mm.
Description
Technical field
The nitrogen that the utility model is related to be used in a kind of nitrogen protection device more particularly to a kind of pipeline module production process
Gas shielded device.
Background technology
In large-scale module conduits construction, the pipeline many of cut-point is welded to connect between submodule, when modular transportation
Submodule will be split, and the pipeline needs of welding will be cut open, and the clearance requirement between pipe ends after cutting cannot be big
In 2mm, in this way, cannot be carried out with the method for traditional welding blind plate in the port of pipeline when carrying out nitrogen envelope protection, because
When the later stage, submodule was mutually butted, the blind plate of welding is cut off, and will result in after cutting off blind plate pipe ends it
Between gap can be more than 2mm, pipeline that in this way can not be as requested between submodule weld.
Utility model content
Technical problem to be solved in the utility model is：A kind of modularization pipeline production nitrogen protection device is provided,
The nitrogen protection device can facilitate carries out nitrogen protection to pipeline, it is ensured that the end of pipeline is without beating when removal nitrogen protection device
Mill makes the gap between the pipeline of docking be less than 2mm.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of modularization pipeline production is protected with nitrogen
Protection unit, including the first connecting flange and protection case, first connecting flange are sealingly fastened in the end periphery of pipeline, institute
It states and is evenly distributed in several the first bolt mounting holes on the first connecting flange；The protection case include the second connecting flange and
Pipe sleeve is protected, one end of the protection pipe sleeve is cecum, and second connecting flange is welded in the other end of protection pipe sleeve, described
It is evenly distributed on second connecting flange and one-to-one second bolt mounting holes of the first bolt mounting holes, second bolt
Mounting hole is the strip-shaped hole radially extended, is provided between first connecting flange and the second connecting flange and facilitates determining for positioning
Bit architecture, second connecting flange and the second connecting flange be bolted and between be provided with gasket.
As a preferred solution, the location structure includes two arc positioning protrusion arranged at 180 °, this is fixed
Position protrusion is set on the second connecting flange end face adjacent with the first connecting flange, be provided on first connecting flange and
The positioning groove of positioning protrusion adaptation, is provided on the gasket and facilitates the perforative through hole of positioning groove.
As a preferred solution, the nitrogen protection device further includes undergauge sleeve and rubber seal cylinder, the contracting
Diameter sleeve includes radially connected plate portion and axially mounted canister portion, is evenly distributed in the radially connected plate portion and pacifies with the first bolt
The third bolt mounting holes that dress hole is adapted to one by one, the axially mounted canister portion are set in protection pipe and put on, the radially connected plate
Sealing welding is fixed between portion and pipeline, and the rubber seal cylinder includes radial seal plate portion and axial seal canister portion, the axis
It is set in axially mounted canister portion to sealing canister portion, the radial seal plate portion is contacted with radially connected plate portion, and described first connects
Acting flange is installed on the outside of axial seal canister portion and is fixed by bolt and radially connected plate portion.
As a preferred solution, annular protrusion is arranged in the periphery of the axially mounted canister portion, the annular protrusion
Position is corresponding with the inner hole wall position of the first connecting flange.
As a preferred solution, the quantity of the annular protrusion is two, and one of annular protrusion and first connects
The inner hole wall position of acting flange corresponds to, another annular protrusion is corresponding with the inner hole wall position of the second connecting flange.
After using above-mentioned technical proposal, the effect of the utility model is：The nitrogen protection device utilizes the first connection method
Orchid is set with and is fixed on pipeline, and protection case is recycled to be bolted with the first connecting flange, meanwhile, protect case
It is positioned by location structure between second connecting flange and the first connecting flange, may insure first by the location structure
It can quickly and accurately be corresponded between bolt mounting holes and the second bolt mounting holes, and second bolt mounting holes are radial simultaneously
The strip-shaped hole of extension can reduce fixed installation accuracy between the first connecting flange and pipeline.
Again since the location structure includes two arc positioning protrusion arranged at 180 °, which is set to the
On the two connecting flanges end face adjacent with the first connecting flange, it is provided on first connecting flange and is adapted to positioning protrusion
Positioning groove is provided on the gasket and facilitates the perforative through hole of positioning groove, can be with using two arc positioning protrusion
It is accurately positioned, reduces installation difficulty.
Again since the nitrogen protection device further includes undergauge sleeve and rubber seal cylinder, the undergauge sleeve includes radial
Web portion and axially mounted canister portion are evenly distributed in the radially connected plate portion and to be adapted to one by one with the first bolt mounting holes
Third bolt mounting holes, the axially mounted canister portion are set in protection pipe and put on, close between the radially connected plate portion and pipeline
Envelope is welded and fixed, and the rubber seal cylinder includes radial seal plate portion and axial seal canister portion, the axial seal canister portion suit
In in axially mounted canister portion, the radial seal plate portion is contacted with radially connected plate portion, and first connecting flange is installed on axis
It is fixed to the outside of sealing canister portion and by bolt and radially connected plate portion, can be made using the undergauge sleeve and rubber seal cylinder
Nitrogen protection device is suitble to two different calibers.
Again since annular protrusion is arranged in the periphery of the axially mounted canister portion, the position of the annular protrusion is connect with first
The inner hole wall position of flange corresponds to, which can squeeze axial seal canister portion, and sealing effect is more preferable.
Again since the quantity of the annular protrusion is two, the inner hole wall of one of annular protrusion and the first connecting flange
Position corresponds to, another annular protrusion is corresponding with the inner hole wall position of the second connecting flange, in this way, axially mounted canister portion can be same
When support the first connecting flange and the second connecting flange annular protrusion to form two seals, sealing effect is more preferable.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram that case is protected in the utility model embodiment 1；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the structural schematic diagram of the utility model embodiment 1；
Fig. 4 is the structural schematic diagram of the utility model embodiment 2；
Fig. 5 is the structure enlargement diagram at A in Fig. 4；
In attached drawing：1. the first connecting flange；2. protecting case；3. the first bolt mounting holes；4. the second connecting flange；5. protecting
Protective pipe sleeve；6. the second bolt mounting holes；7. gasket；8. positioning protrusion；9. positioning groove；10. undergauge sleeve；101. radial connect
Fishplate bar portion；102. axially mounted canister portion；11. rubber seal bucket；111. radial seal plate portion；112. axial seal canister portion；12. ring
Shape protrusion；13. pipeline.
Specific implementation mode
The utility model is described in further detail below by specific embodiment.
Embodiment 1
As shown in Figs. 1-3, a kind of modularization pipeline production nitrogen protection device, including the first connecting flange 1 and protection
Case 2, first connecting flange 1 are sealingly fastened in the end periphery of pipeline 13, circumference uniform distribution on first connecting flange 1
There are several the first bolt mounting holes 3；The protection case 2 includes the second connecting flange 4 and protection pipe sleeve 5, the protection pipe
One end of set 5 is cecum, and second connecting flange 4 is welded in the other end of protection pipe sleeve 5, on second connecting flange 4
Be evenly distributed in 3 one-to-one second bolt mounting holes 6 of the first bolt mounting holes, second bolt mounting holes 6 be diameter
To the strip-shaped hole of extension, it is provided with the location structure for facilitating positioning between first connecting flange, 1 and second connecting flange 4,
Second connecting flange, 4 and second connecting flange 4 be bolted and between be provided with gasket 7.
In the present embodiment 1, location structure includes two arc positioning protrusion 8 arranged at 180 °, the positioning protrusion 8 setting
In on the second connecting flange 4 end face adjacent with the first connecting flange 1, being provided on first connecting flange 1 and convex
The positioning groove 9 of 8 adaptations is played, is provided on the gasket 7 and facilitates 9 perforative through hole of positioning groove.Certainly, the positioning
Protrusion 8 can also be other numbers, such as 4,5,6 etc., each positioning protrusion 8 along the second connecting flange 4 it is circumferential uniformly
It is distributed, the positioning groove 9 being adapted to each positioning protrusion 8 is provided on the first connecting flange 1.The shape of positioning protrusion 8 is also unlimited
In arc.
In use, the nitrogen protection device is set with using the first connecting flange 1 and is fixed on pipeline 13, protective cover is utilized
Shell 2 is bolted with the first connecting flange 1, meanwhile, protect case 2 the second connecting flange 4 and the first connecting flange 1 it
Between positioned by positioning protrusion 8, may insure that the first bolt mounting holes 3 and the second bolt are installed by the positioning protrusion 8
It can quickly and accurately be corresponded between hole 6, and to be the strip-shaped hole radially extended can reduce by second bolt mounting holes 6 simultaneously
Fixed installation accuracy between one connecting flange 1 and pipeline 13, which can facilitate carries out nitrogen guarantor to pipeline 13
Shield, it is ensured that the end of pipeline 13 makes the gap between the pipeline 13 of docking be less than without polishing when removal nitrogen protection device
2mm。
Embodiment 2
As illustrated in figures 4-5, nitrogen protection device further includes undergauge sleeve 10 and rubber seal cylinder 11, the undergauge sleeve 10
Including radially connected plate portion 101 and axially mounted canister portion 102, it is evenly distributed in the radially connected plate portion 101 and the first spiral shell
The third bolt mounting holes 103 that bolt mounting hole 3 is adapted to one by one, the axially mounted canister portion 102 are set on protection pipe sleeve 5, institute
It states sealing welding between radially connected plate portion 101 and pipeline 13 to fix, the rubber seal cylinder 11 includes radial seal plate portion 111
With axial seal canister portion 112, the axial seal canister portion 112 is set in axially mounted canister portion 102, the radial seal plate portion
111 contact with radially connected plate portion 101, and first connecting flange 1 is installed on the outside of axial seal canister portion 112 and passes through spiral shell
Bolt is fixed with radially connected plate portion 101.Annular protrusion 12 is arranged in the periphery of axially mounted canister portion 102, the annular protrusion 12
Position is corresponding with the inner hole wall position of the first connecting flange 1.
In the present embodiment 2, the quantity of annular protrusion 12 is two, one of annular protrusion 12 and the first connecting flange 1
Inner hole wall position correspond to, another annular protrusion 12 is corresponding with the inner hole wall position of the second connecting flange 4.Certainly, convex annular
Playing 12 quantity can be set according to self-demand, such as 3,4,5 etc..
In use, passing through bolt between third bolt mounting holes 103 and the first bolt mounting holes 3, the second bolt mounting holes 6
It is fixed, at this point, the undergauge sleeve 10 can be adapted for the smaller pipeline 13 of caliber, therefore undergauge sleeve 10 and rubber seal
Cylinder 11 can make nitrogen protection device be suitble to two different calibers.
Other technical characteristics in the present embodiment 2 and the technical characteristic in embodiment 1 are essentially identical, and details are not described herein.
Embodiment described above is only the description to preferred embodiments of the present invention, not as to the utility model
The restriction of range is made technical solutions of the utility model various on the basis of not departing from the spirit of the design of the utility model
Deformation and transformation should all be fallen into the protection domain of claims determination of the utility model.
Claims (5)
1. a kind of modularization pipeline production nitrogen protection device, it is characterised in that：Including the first connecting flange and case is protected,
First connecting flange is sealingly fastened in the end periphery of pipeline, be evenly distributed on first connecting flange several
One bolt mounting holes；The protection case includes the second connecting flange and protection pipe sleeve, and one end of the protection pipe sleeve is cecum,
Second connecting flange is welded in the other end of protection pipe sleeve, is evenly distributed in and the first bolt on second connecting flange
One-to-one second bolt mounting holes of mounting hole, second bolt mounting holes are the strip-shaped hole radially extended, described first
The location structure for facilitating positioning, second connecting flange and the second connection are provided between connecting flange and the second connecting flange
Flange be bolted and between be provided with gasket.
2. a kind of modularization pipeline production nitrogen protection device as described in claim 1, it is characterised in that：The positioning knot
Structure includes two arc positioning protrusion arranged at 180 °, which is set to the second connecting flange and the first connecting flange
On adjacent end face, it is provided with the positioning groove being adapted to positioning protrusion on first connecting flange, is set on the gasket
It is equipped with and facilitates the perforative through hole of positioning groove.
3. a kind of modularization pipeline production nitrogen protection device as claimed in claim 2, it is characterised in that：The nitrogen is protected
Protection unit further includes undergauge sleeve and rubber seal cylinder, and the undergauge sleeve includes radially connected plate portion and axially mounted canister portion,
The third bolt mounting holes being adapted to one by one with the first bolt mounting holes, the axial direction are evenly distributed in the radially connected plate portion
Installation canister portion is set in protection pipe and puts on, and sealing welding is fixed between the radially connected plate portion and pipeline, the rubber seal
Cylinder includes radial seal plate portion and axial seal canister portion, and the axial seal canister portion is set in axially mounted canister portion, the diameter
It is contacted to sealing plate portion with radially connected plate portion, first connecting flange is installed on the outside of axial seal canister portion and passes through spiral shell
Bolt is fixed with radially connected plate portion.
4. a kind of modularization pipeline production nitrogen protection device described in claim 3, it is characterised in that：It is described axially mounted
Annular protrusion is arranged in the periphery of canister portion, and the position of the annular protrusion is corresponding with the inner hole wall position of the first connecting flange.
5. a kind of modularization pipeline production nitrogen protection device described in claim 4, it is characterised in that：The annular protrusion
Quantity be two, one of annular protrusion is corresponding with the inner hole wall position of the first connecting flange, another annular protrusion and
The inner hole wall position of second connecting flange corresponds to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721843839.7U CN207621339U (en) | 2017-12-26 | 2017-12-26 | A kind of modularization pipeline production nitrogen protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721843839.7U CN207621339U (en) | 2017-12-26 | 2017-12-26 | A kind of modularization pipeline production nitrogen protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621339U true CN207621339U (en) | 2018-07-17 |
Family
ID=62830007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721843839.7U Active CN207621339U (en) | 2017-12-26 | 2017-12-26 | A kind of modularization pipeline production nitrogen protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207621339U (en) |
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2017
- 2017-12-26 CN CN201721843839.7U patent/CN207621339U/en active Active
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