CN203809910U - Claw and submarine pipeline joint employing same - Google Patents
Claw and submarine pipeline joint employing same Download PDFInfo
- Publication number
- CN203809910U CN203809910U CN201420230810.1U CN201420230810U CN203809910U CN 203809910 U CN203809910 U CN 203809910U CN 201420230810 U CN201420230810 U CN 201420230810U CN 203809910 U CN203809910 U CN 203809910U
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- plane
- claw
- sealing gasket
- area
- pipe joint
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Abstract
The utility model discloses a claw and a submarine pipeline joint employing the same. A first sealing gasket and a second sealing gasket are disposed on first and second slants of a claw body respectively; when the claw is radially stressed and when a high neck is joined by axial force produced by fitting of the claw with a conical face of the high neck, the sealing gaskets disposed between the claw and the conical face of the high neck plastically deform, a concave arc face tends to contact with the slants of the claw, and space of the fitting parts of the claw and the conical face of the high neck is sealed. In addition, on the premise of good sealing performance, the part of the submarine pipeline joint can be less corroded by seawater; even with time passing by, oil-gas leaks in the claw and the conical surface of the high neck are not significantly increased, the service life of the claw is prolonged, maintenance cost is lowered, and maintenance is easier.
Description
Technical field
The utility model belongs to submarine pipeline transportation technology field, relates in particular to a kind of claw and uses the submarine pipe joint of this claw.
Background technique
Submarine pipeline is by airtight pipeline, in seabed, to carry continuously the pipeline of large gauging (gas), is the chief component of offshore oil (gas) field Development and Production system, be also at present the most fast, the safest and economic reliable offshore oil and gas means of transportation.
Submarine pipeline connection at present mainly contains three kinds of modes, is respectively bolt flange connection, clip connected and sleeve and is connected.Owing to slipping into deep-sea, need to bear higher hydraulic pressure, for operator, risk factor is too high, and therefore, submarine pipeline is installed or connection work majority is completed by underwater robot or remote wireless control.And then sleeve is connected to become the most conventional and safest submarine pipeline interconnection technique at present.
The sleeve connection of prior art mainly depends on sleeve-type coupling and realizes, as shown in Figure 1, sleeve-type coupling, comprise control unit, oil hydraulic cylinder 1, hydraulic-pressure sleeve 2 and some claws 3, control unit makes oil hydraulic cylinder 1 drive hydraulic-pressure sleeve 2 axial motions by receiving remote instruction, promote claw 3 and rotate around the hub 4 of submarine pipeline, claw 3 is radially oppressed simultaneously, thereby utilizes the conical surface 5 of claw 3 and hub 4 to coordinate generation axial forces to clamp hub 4 joints.
Although adopt the sleeve-type coupling of said structure can substantially meet the requirement that submarine pipeline automatic self-locking connects, because the conical surface 5 of claw 3 and hub 4 is all metal ceramics, even after high-pressure extrusion coordinates it, its sealability is still poor.And submarine pipeline corroded deeply, As time goes on, the situation of the conical surface 5 trapped fuel gas leakage points of claw 3 and hub 4 can increase gradually, and maintenance cost is higher, and maintenance difficult is larger.
Summary of the invention
The purpose of this utility model is to provide a kind of claw and uses the submarine pipe joint of this claw, can increase the sealability of the conical surface of claw and hub, and minimizing is corroded and caused the situation of oil gas leak point, reduces maintenance cost.
In order to realize above-mentioned model utility object, technical solutions of the utility model are as follows:
A claw, for submarine pipe joint, it comprises body, and is arranged at body for the first inclined-plane and second inclined-plane of the cone match with hub, on described the first inclined-plane, is provided with the first sealing gasket, on described the second inclined-plane, is provided with the second sealing gasket.
Further, the one side that described the first sealing gasket is connected with the first inclined-plane is concave arc surface, and another side is convex globoidal.When claw contacts compression with hub, the first sealing gasket produces plastic deformation, plays seal action.
Further, the one side that described the second sealing gasket is connected with the second inclined-plane is concave arc surface, and another side is convex globoidal.When claw contacts compression with hub, the second sealing gasket produces plastic deformation, plays seal action.
Further, the area of contact on described the first sealing gasket and the first inclined-plane is less than the area on the first inclined-plane, and the area of contact on described the second sealing gasket and the second inclined-plane is less than the area on the second inclined-plane.Prearrangement of deformation amount gap, prevents other positions conflicts of sealing gasket and sleeve or hub, affects its sealing.
Further, the cambered surface center of described the first sealing gasket and the second sealing gasket is respectively arranged with frictional plane.Because sealing gasket material is 1Cr18Ni9Ti, be metal material, when sealing gasket contacts with hub, because a face contact is inhomogeneous, easily produce displacement difference, at the place, convex globoidal summit of sealing gasket, frictional plane is set, sealing gasket is stressed comparatively even, avoids producing displacement difference.
The utility model has also proposed to adopt the submarine pipe joint of above-mentioned claw: a kind of submarine pipe joint, comprise control unit, oil hydraulic cylinder, hydraulic-pressure sleeve and some claws, described claw comprises body, and be arranged at body for the first inclined-plane and second inclined-plane of the cone match with hub, on described the first inclined-plane, be provided with the first sealing gasket, on described the second inclined-plane, be provided with the second sealing gasket.
The claw the utility model proposes and the submarine pipe joint that has used this claw, by the first sealing gasket and the second sealing gasket are set respectively on the first inclined-plane on claw body and the second inclined-plane, when claw is radially oppressed, when thereby the cone match of utilizing claw and hub produces axial force clamping hub joint, the sealing gasket being arranged between claw and the conical surface of hub produces plastic deformation, concave arc surface is tending towards contacting with the inclined-plane of claw, thereby seal action is played in the cooperation place of the conical surface of claw and hub.And in the situation of good seal performance, also this position that can reduce submarine pipe joint is subject to the situation of seawater corrosion, even As time goes on, the situation of the conical surface trapped fuel gas leakage point of claw and hub can not increase much yet, improved its working life, reduce maintenance cost, reduced maintenance difficult.
Accompanying drawing explanation
Fig. 1 is the structural representation of the submarine pipe joint of prior art.
Fig. 2 is the structural representation of claw of the present utility model.
Shown in figure: 1, oil hydraulic cylinder, 2, hydraulic-pressure sleeve, 3, claw, 4, hub, 5, the conical surface, 6, body, the 7, first inclined-plane, the 8, second inclined-plane, the 9, first sealing gasket, the 10, second sealing gasket, 11, frictional plane.
Embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are described in further details, following examples do not form restriction of the present utility model.
Claw of the present utility model as shown in Figure 2, for submarine pipe joint.Comprise body 6, and be arranged at the first inclined-plane 7 and the second inclined-plane 8 that body 6 coordinates for the conical surface 5 with hub 4.On this first inclined-plane 7, be provided with the first sealing gasket 9, on this second inclined-plane 8, be provided with the second sealing gasket 10.
The first sealing gasket 9 is respectively the structure of cambered surface for two sides, and its one side contacting with the first inclined-plane 7 is concave arc surface, and concave arc surface projects to the area that area on the first inclined-plane 7 is less than the first inclined-plane 7.In other words, the area that the circumference of concave arc surface surrounds is less than the area on the first inclined-plane 7.It is the reserved deformation of the plastic deformation space of the first sealing gasket 9.
The second sealing gasket 10 is respectively the structure of cambered surface for two sides, and its two of contacting with the second inclined-plane 8 are concave arc surface, and concave arc surface projects to the area that area on the second inclined-plane 8 is less than the second inclined-plane 8.In other words, the area that the circumference of concave arc surface surrounds is less than the area on the second inclined-plane 8.It is the reserved deformation of the plastic deformation space of the second sealing gasket 10.
Material that it should be noted that the first sealing gasket 9 and the second sealing gasket 10 is 1Cr18Ni9Ti, is metal material, is austenite, the stainless steel thin slice of namely conventionally understanding.It is corrosion-resistant, and plasticity is good, and density is higher.
On the convex globoidal summit of the first sealing gasket 9 and the second sealing gasket 10, be provided with frictional plane 11, this frictional plane 11 can be agreed with the conical surface 5 of hub 4, and its angle of inclination is parallel with the conical surface 5 of hub 4.While making sleeve drive claw 3 to contact with the conical surface 5 of hub 4, by linking work at selected spots with that in entire areas of prior art, change the combination of face face into, increase both area of contact, reduce pressure, make sealing gasket stressed evenly, avoid displacement difference.
The utility model has also proposed a kind of submarine pipe joint that uses this claw, comprise control unit, oil hydraulic cylinder 1, hydraulic-pressure sleeve 2 and some claws 3, described claw 3 comprises body 6, and be arranged at the first inclined-plane 7 and the second inclined-plane 8 that body 6 coordinates for the conical surface 5 with hub 4, on described the first inclined-plane 7, be provided with the first sealing gasket 9, on described the second inclined-plane 8, be provided with the second sealing gasket 10.
Above embodiment is only in order to the technical solution of the utility model to be described but not be limited; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. a claw, for submarine pipe joint, it comprises body, and be arranged at body for the first inclined-plane and second inclined-plane of the cone match with hub, it is characterized in that, on described the first inclined-plane, be provided with the first sealing gasket, on described the second inclined-plane, be provided with the second sealing gasket.
2. a claw, for submarine pipe joint, it comprises body, and be arranged at body for the first inclined-plane and second inclined-plane of the cone match with hub, it is characterized in that, on described the first inclined-plane, be provided with the first sealing gasket, on described the second inclined-plane, be provided with the second sealing gasket.
3. a kind of claw according to claim 1, is characterized in that, the one side that described the second sealing gasket is connected with the second inclined-plane is concave arc surface, and another side is convex globoidal.
4. according to a kind of claw described in claim 2 or 3, it is characterized in that, the area of contact on described the first sealing gasket and the first inclined-plane is less than the area on the first inclined-plane, and the area of contact on described the second sealing gasket and the second inclined-plane is less than the area on the second inclined-plane.
5. a kind of claw according to claim 1, is characterized in that, the cambered surface center of described the first sealing gasket and the second sealing gasket is respectively arranged with frictional plane.
6. a submarine pipe joint, comprise control unit, oil hydraulic cylinder, hydraulic-pressure sleeve and some claws, described claw comprises body, and be arranged at body for the first inclined-plane and second inclined-plane of the cone match with hub, it is characterized in that, on described the first inclined-plane, be provided with the first sealing gasket, on described the second inclined-plane, be provided with the second sealing gasket.
7. a kind of submarine pipe joint according to claim 6, is characterized in that, the one side that described the first sealing gasket is connected with the first inclined-plane is concave arc surface, and another side is convex globoidal.
8. a kind of submarine pipe joint according to claim 6, is characterized in that, described Twoway valves one end is connected with return tank, and the other end is connected with aqueduct.
9. according to a kind of submarine pipe joint described in claim 7 or 8, it is characterized in that, the area of contact on described the first sealing gasket and the first inclined-plane is less than the area on the first inclined-plane, and the area of contact on described the second sealing gasket and the second inclined-plane is less than the area on the second inclined-plane.
10. a kind of submarine pipe joint according to claim 6, is characterized in that, the cambered surface center of described the first sealing gasket and the second sealing gasket is respectively arranged with antifriction plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230810.1U CN203809910U (en) | 2014-05-07 | 2014-05-07 | Claw and submarine pipeline joint employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230810.1U CN203809910U (en) | 2014-05-07 | 2014-05-07 | Claw and submarine pipeline joint employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809910U true CN203809910U (en) | 2014-09-03 |
Family
ID=51448659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420230810.1U Expired - Fee Related CN203809910U (en) | 2014-05-07 | 2014-05-07 | Claw and submarine pipeline joint employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809910U (en) |
-
2014
- 2014-05-07 CN CN201420230810.1U patent/CN203809910U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20150507 |
|
| EXPY | Termination of patent right or utility model |