Participate in the auxiliary line device of the axial load distribution of marine riser supervisor
Technical field
The utility model belongs to offshore oil machinery technical field, is related to a kind of marine riser that participates in and is responsible for axial load distribution
Auxiliary line device.
Background technology
Offshore Drilling Riser is sea oil drilling and production critical equipment, has connection, auxiliary line between marine riser pipe string
The multiple uses such as support is fixed, seabed drilling and extracting equipment is installed, mud circulation is isolated with seawater.Marine riser auxiliary line includes throttling
Kill line, mud supercharging pipeline, hydraulic power transmission pipeline, chemical agent injection pipe line etc., when playing the closing of preventer group respectively
Convey the oil gas or drilling fluid control stream, increase annular space mud circulation rate, conveying operations liquid to preventer from wellbore to the water surface
The important function such as Subsea Control Systems.Common riser connector mainly has screw-type, circlip type, flange bolt formula, pawls
Lock block type and breechblock formula etc..External representational riser connector is such as:The MR-6E types of Vetco Gray companies, MR-6H
SE types, the RF types of Cameron companies, the CLIP types of French Petroleum Institute IFP, the FRC etc. of Drill-quip companies.
Understand that the auxiliary line of above riser connector is not involved in the distribution of marine riser supervisor's axial load, limit through analysis
The depth of water application environment of marine riser is made.
Utility model content
The purpose of this utility model is to provide a kind of auxiliary line device for participating in the axial load distribution of marine riser supervisor, solution
Determine in the prior art, auxiliary line is not involved in the distribution of marine riser supervisor's axial load, limits marine riser depth of water application environment
The problem of.
The utility model is the technical scheme adopted is that a kind of auxiliary line for participating in the axial load distribution of marine riser supervisor
Device, supervisor's pin end and supervisor's female connector is respectively welded in the supervisor butt end of marine riser, in each auxiliary line tube body
Butt end be respectively welded auxiliary line pin end and auxiliary line female connector, the boss on auxiliary line female connector excircle
It is sitting in the perforate of supervisor's female connector flange plate edge, thread bush is equipped with locking nut on auxiliary line pin end excircle;Often
Radially installed has holding screw on a locking nut, and auxiliary line pin end excircle is provided with locking thread groove, holding screw
In jacking locking thread groove.
The auxiliary line device for participating in the axial load distribution of marine riser supervisor of the utility model, is further characterized in that:
The opening's edge inner wall of the auxiliary line female connector is provided with auxiliary line sealing.
Described auxiliary line sealing be arranged as required to together, three or multiple tracks
The threaded hole for being used to install holding screw on the locking nut is arranged as required to two, three or more.
The locking thread groove is axially disposed a plurality of.
The beneficial effects of the utility model are the auxiliary line connectors, and marine riser supervisor participates in axis together with auxiliary line
Distribution to load, is substantially reduced the wall thickness of marine riser supervisor and the weight that marine riser is single, and then reduces stretcher load,
Strengthen the adaptability of the platform depth of water, marine riser depth of water application range significantly increases.
Brief description of the drawings
Fig. 1 riser connector overall assembling figures;
Fig. 2 auxiliary line tripping in partial enlarged views;
Fig. 3 auxiliary lines lock partial enlarged view.
In figure, 1. supervisor's pin ends, 2. auxiliary line tube bodies, 3. auxiliary line pin ends, 4. locking nuts, 5. clamp screws
Nail, 6. retaining mechanisms, the sealing of 7. auxiliary lines, 8. supervisor's female connectors, 9. auxiliary line female connectors, 10. supervisors.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
With reference to Fig. 1, Fig. 2, Fig. 3, the structure of the utility model is to be respectively welded master in 10 butt end of supervisor of marine riser
Pipe pin end 1 with supervisor female connector 8, be respectively welded in the butt end of each auxiliary line tube body 2 auxiliary line pin end 3 with
Auxiliary line female connector 9, the boss on 9 excircle of auxiliary line female connector are sitting in the perforate of supervisor's 8 flange plate edge of female connector
On, thread bush is equipped with locking nut 4 on 3 excircle of auxiliary line pin end, and auxiliary line and marine riser are responsible for by locking nut 4
Body is axially connected spacing;Radially installed has holding screw 5 on each locking nut 4, and 3 excircle of auxiliary line pin end is provided with
Locking thread groove, holding screw 5 is screwed into the jacking locking thread groove, for limiting locking nut 4 and auxiliary line pin end 3
Between circumferentially rotate so that prevent because both loosen caused by auxiliary line axial carrying fail.
Each auxiliary line (mud supercharging pipeline, throttle well killing pipeline, hydraulic line) is identical except size, material external structure,
All it is provided with auxiliary line pin end 3, corresponding auxiliary line female connector 9, locking nut 4 and backing-up screw 5.
Auxiliary line sealing 7 is installed in the opening's edge inner wall of auxiliary line female connector 9, auxiliary line sealing 7 is as needed
Set together, three or multiple tracks, realize auxiliary line pin end 3 docked with auxiliary line female connector 9 after sealing.
Two, three or more, corresponding, spiral shell can be set by being used to install the threaded hole of holding screw 5 on locking nut 4
Line antiratchetting groove can also be axially disposed a plurality of.
The application method of the utility model is,
Marine riser install when, first will supervisor female connector 8 be fixed on platform, treat marine riser supervisor pin end 1 be plugged into every
After water pipe supervisor's 8 extreme position of female connector, marine riser supervisor's pin end 1 is responsible for female connector 8 with marine riser using retaining mechanism
Firmly lock, complete the installation of marine riser supervisor.At the same time by each auxiliary line (mud supercharging pipeline, throttle well killing pipeline, hydraulic pressure
Pipeline) auxiliary line pin end 3 be inserted into corresponding auxiliary line female connector 9, as shown in Figure 2.Then rotated using spanner
Locking nut 4 so that locking nut 4 is rotated up being close to 1 edge lower face of supervisor's pin end, and applies certain moment of torsion, will be auxiliary
Pipeline is helped axially to be connected with marine riser main pipe spacing.Then rotation holding screw 5 makes locking nut 4 firmly withstand on auxiliary line
On pin end 3, as shown in Figure 1, Figure 3.Marine riser is after installation is complete, and the axial load of marine riser is except by supervisor's female connector 8, main
Outside pipe 10, supervisor's pin end 1 undertake, also by auxiliary line pin end 3, auxiliary line tube body 2, auxiliary line female connector 9, locking
Nut 4 comes together to undertake.The utility model participates in the auxiliary line device of the axial load distribution of marine riser supervisor, is in auxiliary tube
After line, size, material determine, auxiliary line device axis carrying size is calculated so that auxiliary line participates in supervisor's axial load
Distribution, so that optimize marine riser pin and box sub structure and supervisor's wall thickness, so that mitigate riser joints and single weight, and then
Reduce stretcher load, strengthen the adaptability of the platform depth of water.