CN207018416U - Marine riser damping with Vibrant buffer function is single - Google Patents

Marine riser damping with Vibrant buffer function is single Download PDF

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Publication number
CN207018416U
CN207018416U CN201720552908.2U CN201720552908U CN207018416U CN 207018416 U CN207018416 U CN 207018416U CN 201720552908 U CN201720552908 U CN 201720552908U CN 207018416 U CN207018416 U CN 207018416U
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China
Prior art keywords
outer tube
cylinder
marine riser
cylinder barrel
piston
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CN201720552908.2U
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Chinese (zh)
Inventor
许亮斌
周建良
盛磊祥
陈国明
刘秀全
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China National Offshore Oil Corp CNOOC
Beijing Research Center of CNOOC China Co Ltd
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China National Offshore Oil Corp CNOOC
Beijing Research Center of CNOOC China Co Ltd
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Priority to CN201720552908.2U priority Critical patent/CN207018416U/en
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Abstract

It is single to the utility model is related to a kind of marine riser damping with Vibrant buffer function, the single outer tube including middle part with the hollow cavity expanded, the inner tube being slidably arranged in outer tube, the clutch disk being fixedly connected in the hollow cavity of outer tube and with the outer wall of inner tube and the multiple two-way hydraulic cylinders being fixedly installed on by cylinder barrel on clutch disk;One end of outer tube sets outer pipe flange, and outer tube is connected by outer pipe flange with marine riser;One end of inner tube by the other end insertion outer tube of outer tube, and can relative to outer tube sliding motion, the other end of inner tube set in pipe flange, inner tube is connected by interior pipe flange with marine riser;With being fixedly connected at the top of hollow cavity, the other end is fixedly connected with the bottom of hollow cavity for one end of the bidirectional piston bar of multiple two-way hydraulic cylinders.The utility model uses two-way hydraulic cylinder by setting the inner and outer tubes that can be relatively moved, and installed in the junction of two marine risers, can effectively slow down the vibration of marine riser.

Description

Marine riser damping with Vibrant buffer function is single
Technical field
It the utility model is related to a kind of drilling riser single, more particularly to a kind of tool for offshore oil and gas drilling platforms There is the marine riser damping of Vibrant buffer function single.
Background technology
During sea oil drilling and production, drilling water-separation pipe can be by from including wave, sea wind and platform movement etc. Influence and vibrate, cause the fatigue damage of marine riser to aggravate.Especially when typhoon, using the water proof hung firmly The vibration of pipe is especially serious.In order to extend the life-span of marine riser, service life is improved, it is necessary to slow down marine riser in marine environment Caused vibration.
The content of the invention
In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of marine riser damping list with Vibrant buffer function Root, it is simple in construction installed in the junction of two marine risers, it is easy to operate, it can effectively slow down the vibration of marine riser.
To achieve the above object, the utility model takes following technical scheme:A kind of water proof with Vibrant buffer function Pipe damping it is single, it is characterised in that this it is single including:Middle part has the outer tube of the hollow cavity of expansion, is slidably arranged in described Inner tube in outer tube, the connection circle being fixedly connected in the hollow cavity of the outer tube and with the outer wall of said inner tube Disk, and the multiple two-way hydraulic cylinders being fixedly installed on by cylinder barrel on the clutch disk;Wherein, one end of the outer tube is set Outer pipe flange, the outer tube are connected by the outer pipe flange with marine riser;One end of said inner tube is another by the outer tube One end is inserted in the outer tube, and can relative to the outer tube sliding motion, the other end of said inner tube set in pipe flange, institute Inner tube is stated by said inner tube flange with marine riser to be connected;One end of the bidirectional piston bar of multiple two-way hydraulic cylinders and institute State and be fixedly connected at the top of hollow cavity, the other end is fixedly connected with the bottom of the hollow cavity.
The outer tube includes top outer tube, top lid, outer tube socket, bottom lid and lower outer tubes, the outer tube method Orchid is arranged on one end of the top outer tube, and the other end of the top outer tube is fixedly connected with the top lid, described outer The both ends of pipe socket are connected with the top lid and bottom lid respectively, the bottom lid and the one of the lower outer tubes End is fixedly connected, and the top outer tube, top lid, outer tube socket, the longitudinal centre line weight of bottom lid and lower outer tubes Close;The diameter of the top lid, bottom lid and outer tube socket is more than the diameter of the top outer tube and lower outer tubes, so as to The hollow cavity of expansion is formed in the middle part of the outer tube, the top lid is the top of the hollow cavity, under described Portion's lid is the bottom of the hollow cavity.
The outer tube socket is designed using two halves formula.
Shaft hole matching is used between said inner tube and the outer tube.
Multiple two-way hydraulic cylinders are angularly uniformly arranged along the circumference on the outside of said inner tube.
The two-way hydraulic cylinder includes one end and closes the cylinder barrel of another end opening, the work being slidably arranged in the cylinder barrel Plug, with the cylinder barrel it is detachably connected and close the cylinder cap of the cylinder barrel openend and meanwhile through the cylinder barrel blind end, The bidirectional piston bar and spring of piston and cylinder cap;The bidirectional piston bar is fixedly connected with the piston, the bidirectional piston Bar can move with the piston relative to the cylinder barrel;Two springs are respectively sleeved at the bidirectional piston bar and are located at In the cylinder barrel on the part of the piston both sides, and one end of two springs is against on the piston, the other end supports respectively On the blind end and cylinder cap of the cylinder barrel.
It is fixedly connected between the piston and the bidirectional piston bar by card key.
The position contacted on the outside of the cylinder barrel and cylinder cap of the two-way hydraulic cylinder with the bidirectional piston bar is respectively mounted anti- Konisphere, the part installation sealing ring that cylinder cap described in the bidirectional hydraulic cylinder interior contacts with the bidirectional piston bar.
For the utility model due to taking above technical scheme, it has advantages below:1st, it is of the present utility model that there is vibration The marine riser damping of pooling feature is single, by setting the inner and outer tubes that can be relatively moved, while uses two-way hydraulic cylinder, examines The influence that upper and lower both direction is brought to water proof tube vibration is considered, installed in the junction of two marine risers, can effectively slow down The vibration of marine riser, and it is simple in construction, it is easy to operate.2nd, the marine riser damping of the present utility model with Vibrant buffer function It is single, shaft hole matching is used between inner tube and outer tube, there is certain mobile surplus up and down, further lifting is imitated to the buffering of vibration Fruit.3rd, the marine riser damping of the present utility model with Vibrant buffer function is single, is set up by the both ends in bidirectional piston bar The spring of high intensity, two springs are against on cylinder barrel blind end and cylinder cap respectively, effectively slow down bidirectional piston bar motion bring rush Hit, further increase effectiveness in vibration suppression.4th, the marine riser of the present utility model with Vibrant buffer function damps single, bidirectional hydraulic The cylinder barrel of cylinder and cylinder cap set dust ring using be threadedly coupled on the outside of cylinder cap, realize the reliability of two-way hydraulic cylinder assembling with Security.5th, the marine riser damping of the present utility model with Vibrant buffer function is single, simple in construction, easy to use, can be with It is widely used in slowing down marine riser caused vibration in complicated marine environment of offshore oil and gas drilling platforms.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram that the utility model removes outer tube socket;
Fig. 2 is sectional view of the present utility model;
Fig. 3 is the sectional view of the utility model hydraulic cylinder.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, a kind of marine riser damping with Vibrant buffer function provided by the utility model is single, It includes outer tube 1, inner tube 2, clutch disk 3 and two-way hydraulic cylinder 4;Wherein, outer tube 1 include top outer tube 11, top lid 12, Outer tube socket 13, bottom lid 14 and lower outer tubes 15, one end of top outer tube 11 are provided with outer pipe flange 16, and outer tube 1 passes through Outer pipe flange 16 is connected with marine riser;Top lid 12 is fixedly connected with the other end of top outer tube 11, outer tube socket 13 Both ends are connected with top lid 12 and bottom lid 14 respectively, and bottom lid 14 is fixedly connected with one end of lower outer tubes 15, And top outer tube 11, top lid 12, outer tube socket 13, the longitudinal centre line of bottom lid 14 and lower outer tubes 15 overlap;On The diameter of portion's lid 12, bottom lid 14 and outer tube socket 13 is more than the diameter of top outer tube 11 and lower outer tubes 15, so that The middle part of outer tube 1 forms the hollow cavity of expansion.One end of inner tube 2 is inserted in outer tube 1 until upper by the other end of lower outer tubes 15 At portion's outer tube 11, and inner tube 2 can be relative to the sliding motion of outer tube 1;The other end of inner tube 2 is provided with interior pipe flange 21, and inner tube 2 is logical Interior pipe flange 21 is crossed with marine riser to be connected.Clutch disk 3 is located in the middle part expansion hollow cavity of outer tube 1, and with inner tube 2 Outer wall be fixedly connected.Multiple two-way hydraulic cylinders 4 are fixedly installed on clutch disk 3 by cylinder barrel 41, bidirectional piston bar 42 One end is fixedly connected with the top lid 12 of outer tube 1, the other end is fixedly connected with the bottom lid 14 of outer tube 1.
In above-described embodiment, shaft hole matching is used between inner tube 2 and top outer tube 11 and lower outer tubes 15, there is one up and down Fixed mobile surplus, when marine riser produces vibration, vibration damping can be reached by the relative movement between inner tube 2 and outer tube 1 Effect.
In above-described embodiment, circumference of multiple two-way hydraulic cylinders 4 along the outside of inner tube 2 is angularly uniformly arranged;For example, can be with Circumferentially at interval of 60 ° of settings, one two-way hydraulic cylinder 4.
In above-described embodiment, outer tube socket 13 is using the design of two halves formula, first by the outer tube socket 13 of half and top lid 12 are connected with bottom lid 14, then second half outer tube socket 13 is connected with top lid 12 and bottom lid 14, make Assembling is more convenient.
In above-described embodiment, as shown in figure 3, two-way hydraulic cylinder 4 includes cylinder barrel 41, bidirectional piston bar 42, piston 43, cylinder cap 44 and spring 45;Wherein, one end closing of cylinder barrel 41, another end opening, piston 43 is slidably arranged in cylinder barrel 41, cylinder cap 44 with Cylinder barrel 41 is detachably connected and closes the openend of cylinder barrel 41;The blind end through cylinder barrel 41, the work simultaneously of bidirectional piston bar 42 Plug 43 and cylinder cap 44, and be fixedly connected with piston 43, bidirectional piston bar 42 can be moved with piston 43 relative to cylinder barrel 41;Two The spring 45 of root high intensity is respectively sleeved at bidirectional piston bar 42 and is located on the part of the both sides of 41 inner carrier of cylinder barrel 43, and two springs 45 one end is against on piston 43, the other end is against on the blind end and cylinder cap 44 of cylinder barrel 41 respectively, can slow down bidirectional piston Bar 42 moves the impact brought.
In above-described embodiment, position that the cylinder barrel 41 of two-way hydraulic cylinder 4 and the outside of cylinder cap 44 contact with bidirectional piston bar 42 Dust ring 47 is respectively mounted, for preventing pollutant from entering two-way hydraulic cylinder 4, so as to protect the sealing of two-way hydraulic cylinder 4;It is two-way The part installation sealing ring 48 that the inside cylinder cap 44 of hydraulic cylinder 4 contacts with bidirectional piston bar 42, occurs to prevent phenomena such as leak-stopping oil.
In above-described embodiment, as shown in Fig. 2 being fixedly connected between piston 43 and bidirectional piston bar 42 by card key 46, make Piston 43 and the simpler convenience of assembling of bidirectional piston bar 42.
In above-described embodiment, the both ends of bidirectional piston bar 42 by the way of welding respectively with top lid 12 and lower tube Lid 14 is fixedly connected;It is fixedly connected between clutch disk 3 and the outer wall of inner tube 2 by the way of welding;Top outer tube 11 with it is upper Portion's lid 12 is integrally manufactured to be formed, lower outer tubes 15 and bottom lid 14 be fixedly connected by the way of welding or it is integrally manufactured and Into, be fixedly connected between outer tube socket 13 and top lid 12 by the way of welding, outer tube socket 13 and bottom lid 14 it Between using threaded connection;It is connected by screw bolts between cylinder barrel 41 and cylinder cap 44.
A kind of marine riser with Vibrant buffer function of the present utility model damps single assemble sequence and is:First, will The piston 43 of two-way hydraulic cylinder 4 is fixedly connected with bidirectional piston bar 42 by card key 46, the bidirectional piston bar in the both sides of piston 43 A spring 45 is inserted on 42 respectively;The combination of piston 43 and bidirectional piston bar 42 is loaded in cylinder barrel 41, makes bidirectional piston bar 42 One end pass through the blind end of cylinder barrel 41, it is and anti-with the installation of the contact portion of bidirectional piston bar 42 on the outside of the blind end of cylinder barrel 41 Konisphere 47;The other end of bidirectional piston bar 42 is passed through into cylinder cap 44, and inside and outside cylinder cap 44 with bidirectional piston bar 42 Contact portion installs sealing ring 48 and dust ring 47 respectively, and cylinder cap 44 is fixedly connected with cylinder barrel 41.Then, it will assemble what is finished Two-way hydraulic cylinder 4 is fixedly connected by cylinder barrel 41 with clutch disk 3;By under one end insertion relative with interior pipe flange 21 of inner tube 2 In portion's outer tube 15 and the assembly of bottom lid 14, by the assembly of two-way hydraulic cylinder 4 and clutch disk 3 and the company of fixation of inner tube 2 Connect.Afterwards, one end of the bidirectional piston bar 42 of two-way hydraulic cylinder 4 is fixedly connected with bottom lid 14, the other end and upper tube Lid 12 is fixedly connected.Finally, first by the both ends of the half of two-piece type outer tube socket 13 respectively with top lid 12 and bottom lid 14 are fixedly connected, then second half both ends are fixedly connected with top lid 12 and bottom lid 14 respectively, while by outside two halves Pipe socket 13 docks, single so as to obtain the complete marine riser damping with Vibrant buffer function.
Marine riser of the present utility model with Vibrant buffer function is damped into single outer tube 1 and inner tube 2 passes through respectively Outer pipe flange 16 and interior pipe flange 21 are connected with marine riser, so as to by the water proof of the present utility model with Vibrant buffer function Pipe damps the single junction for being arranged on two marine risers, and then can effectively slow down the Vibration Condition of marine riser, simple in construction, It is easy to operate.
The various embodiments described above are merely to illustrate the utility model, wherein the structure of each part, set location and its connection side Formula etc. can be all varied from, every equivalents carried out on the basis of technical solutions of the utility model and improvement, It should not exclude outside the scope of protection of the utility model.

Claims (10)

1. it is a kind of with Vibrant buffer function marine riser damping it is single, it is characterised in that this it is single including:
Middle part has the outer tube of the hollow cavity of expansion,
The inner tube being slidably arranged in the outer tube,
The clutch disk being fixedly connected in the hollow cavity of the outer tube and with the outer wall of said inner tube, and
The multiple two-way hydraulic cylinders being fixedly installed on by cylinder barrel on the clutch disk;
Wherein, one end of the outer tube sets outer pipe flange, and the outer tube is connected by the outer pipe flange with marine riser;Institute The one end for stating inner tube is inserted in the outer tube by the other end of the outer tube, and can be described relative to the outer tube sliding motion Pipe flange in the other end setting of inner tube, said inner tube are connected by said inner tube flange with marine riser;It is multiple described two-way One end of the bidirectional piston bar of hydraulic cylinder at the top of the hollow cavity with being fixedly connected, the bottom of the other end and the hollow cavity Portion is fixedly connected.
2. the marine riser damping with Vibrant buffer function is single as claimed in claim 1, it is characterised in that the outer tube bag Top outer tube, top lid, outer tube socket, bottom lid and lower outer tubes are included, the outer pipe flange is arranged on outside the top One end of pipe, the other end of the top outer tube are fixedly connected with the top lid, the both ends of the outer tube socket respectively with The top lid is connected with bottom lid, and the bottom lid is fixedly connected with one end of the lower outer tubes, and described Top outer tube, top lid, outer tube socket, the longitudinal centre line of bottom lid and lower outer tubes overlap;The top lid, under The diameter of portion's lid and outer tube socket is more than the diameter of the top outer tube and lower outer tubes, so as to be formed in the middle part of the outer tube The hollow cavity of expansion, the top lid is the top of the hollow cavity, and the bottom lid is the middle cavity The bottom of body.
3. the marine riser damping with Vibrant buffer function is single as claimed in claim 2, it is characterised in that the outer tube pipe Cylinder is designed using two halves formula.
4. the damping of the marine riser with Vibrant buffer function as described in claim 1 or 2 or 3 is single, it is characterised in that described Shaft hole matching is used between inner tube and the outer tube.
5. the damping of the marine riser with Vibrant buffer function as described in claim 1 or 2 or 3 is single, it is characterised in that multiple The two-way hydraulic cylinder is angularly uniformly arranged along the circumference on the outside of said inner tube.
6. the marine riser damping with Vibrant buffer function is single as claimed in claim 4, it is characterised in that multiple described double Circumference on the outside of to hydraulic cylinder along said inner tube is angularly uniformly arranged.
7. the damping of the marine riser with Vibrant buffer function as described in claim 1 or 2 or 3 or 6 is single, it is characterised in that The two-way hydraulic cylinder include one end close the cylinder barrel of another end opening, the piston being slidably arranged in the cylinder barrel, with it is described Cylinder barrel is detachably connected and closes the cylinder cap of the cylinder barrel openend while runs through blind end, piston and the cylinder of the cylinder barrel The bidirectional piston bar and spring of lid;The bidirectional piston bar is fixedly connected with the piston, and the bidirectional piston bar can be with institute Piston is stated to move relative to the cylinder barrel together;Two springs are respectively sleeved at the bidirectional piston bar and are located at the cylinder barrel On the part of the interior piston both sides, and one end of two springs is against on the piston, the other end is against the cylinder respectively On the blind end and cylinder cap of cylinder.
8. the marine riser damping with Vibrant buffer function is single as claimed in claim 4, it is characterised in that the two-way liquid Cylinder pressure includes one end and closes the cylinder barrel of another end opening, piston being slidably arranged in the cylinder barrel, detachable with the cylinder barrel Ground connects and closes the cylinder cap of the cylinder barrel openend while through the two-way work of the blind end of the cylinder barrel, piston and cylinder cap Stopper rod and spring;The bidirectional piston bar is fixedly connected with the piston, and the bidirectional piston bar can be with the piston Moved relative to the cylinder barrel;Two springs are respectively sleeved at the bidirectional piston bar and are located at the piston in the cylinder barrel On the part of both sides, and one end of two springs is against on the piston, the other end is against the blind end of the cylinder barrel respectively On cylinder cap.
9. as claimed in claim 7 with Vibrant buffer function marine riser damping it is single, it is characterised in that the piston with It is fixedly connected between the bidirectional piston bar by card key.
10. the marine riser damping with Vibrant buffer function is single as claimed in claim 7, it is characterised in that described two-way The position contacted on the outside of the cylinder barrel and cylinder cap of hydraulic cylinder with the bidirectional piston bar is respectively mounted dust ring, the bidirectional hydraulic The part installation sealing ring that cylinder cap described in cylinder interior contacts with the bidirectional piston bar.
CN201720552908.2U 2017-05-18 2017-05-18 Marine riser damping with Vibrant buffer function is single Active CN207018416U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720552908.2U CN207018416U (en) 2017-05-18 2017-05-18 Marine riser damping with Vibrant buffer function is single

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720552908.2U CN207018416U (en) 2017-05-18 2017-05-18 Marine riser damping with Vibrant buffer function is single

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CN207018416U true CN207018416U (en) 2018-02-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106958618A (en) * 2017-05-18 2017-07-18 中海石油(中国)有限公司 A kind of marine riser damping with Vibrant buffer function is single

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106958618A (en) * 2017-05-18 2017-07-18 中海石油(中国)有限公司 A kind of marine riser damping with Vibrant buffer function is single

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