CN217356077U

CN217356077U - Quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device

Info

Publication number: CN217356077U
Application number: CN202220228684.0U
Authority: CN
Inventors: 阳连丰; 罗超; 张大伟; 陈佳佳; 郭俊华; 管金亮; 徐善辉; 景迪; 吴志强; 何寒露
Original assignee: Tianjin University; Offshore Oil Engineering Co Ltd
Current assignee: Tianjin University; Offshore Oil Engineering Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-09-02
Anticipated expiration: 2032-01-27

Abstract

The utility model discloses a quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device relates to pipeline damping technical field. The quick-dismounting shock absorber comprises a fixing ring, a quick-dismounting connecting piece and a shock absorber, wherein a buckle and a rotating connecting piece are arranged on the fixing ring, and the rotating connecting piece is of a detachable structure; the quick assembly disassembly connecting piece with the outside one end fixed connection of solid fixed ring, the quantity of quick assembly disassembly connecting piece has a plurality ofly, and wait that the angle is even fix gu fixed ring's outside, the shock absorber with the top of quick assembly disassembly connecting piece is fixed. The shock absorber includes connecting rod and damping hammer, the damping hammer is provided with two, and two damping hammers are installed respectively at the both ends of connecting rod. The utility model discloses a figure and the position that in time arrange the damping hammer adjust and combine the characteristic of damping hammer, realized that can be better avoid the member to produce fatigue failure by vortex-induced vibration under the effect of wind.

Description

Quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device

Technical Field

The utility model relates to a pipeline damping technical field specifically is a quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device.

Background

The jacket platform is an important facility for offshore drilling and oil extraction work, the platform structure is continuously innovated and optimized along with the continuous development of offshore oil and gas exploitation, the form of the jacket platform usually has higher strength under the condition that the weight is not increased, direct strength damage usually cannot occur, the construction period of the jacket platform is long, the jacket platform can be in an outdoor environment for a long time and can experience the influence of various weathers, and the most important part is the fatigue damage of the jacket caused by vortex-induced vibration generated by wind flowing through the jacket.

In the existing construction process, due to the fact that some unilateral constraint rod pieces exist due to different construction sequences in the construction stage, when wind flows through the rod pieces at a certain speed, wind-induced vortex-induced vibration can be generated, the fatigue life of the rod pieces can be shortened due to long-term wind-induced vortex-induced vibration, fatigue damage such as cracks and the like even can occur, the manufacturing quality and precision of a jacket platform are reduced, the manufacturing safety of the jacket platform is seriously influenced under the condition, the manufacturing duration of the jacket platform can be greatly influenced, and therefore a novel device is provided to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a quick-dismounting pipeline wind-induced vortex-induced vibration damping device comprises a fixing ring, a quick-dismounting connecting piece and a vibration damper, wherein the fixing ring is provided with a buckle and a rotating connecting piece which is of a detachable structure;

the quick assembly disassembly connecting piece with the outside one end fixed connection of solid fixed ring, the quantity of quick assembly disassembly connecting piece has a plurality ofly, and wait that the angle is even fix gu fixed ring's outside, the shock absorber with the top of quick assembly disassembly connecting piece is fixed.

Preferably, the shock absorber comprises a connecting rod and two shock absorption hammers, the two shock absorption hammers are respectively arranged at two ends of the connecting rod, and the outer portion of the connecting rod and the output end of the quick assembly disassembly connecting piece are fixed.

Preferably, the solid fixed ring is connected with a pipe body in a clamping manner, and the axis of the pipe body is parallel to the connecting rod.

Preferably, the outside of the vibration damper is of a dog bone structure, and the output end of the vibration damper is fixedly connected with a buffer rubber block.

Preferably, the both sides of the outside of quick assembly disassembly connecting piece are rotated and are connected with fixing bolt, the outside both sides of solid fixed ring have seted up the positioning thread groove respectively, fixing bolt and positioning thread groove adaptation.

Preferably, the inside rotation knot that is provided with of rotation connecting piece, the rotation knot will gu fixed ring divide into two semicircle rings, the one end fixedly connected with buckle of one of them semicircle ring, the joint groove has been seted up to the one end of another semicircle ring, buckle and joint groove looks adaptation.

Compared with the prior art, the beneficial effects of the utility model are that:

this quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device adjusts and combines the characteristic of damping hammer through figure and the position that in time arranges the damping hammer, has realized avoiding that the member can be better produces fatigue failure by vortex-induced vibration under the effect of wind.

This quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device through the setting of detachable design, has realized that the device can in time demolish and can used repeatedly after the use, is favorable to improving the efficiency that the platform was made, improves economic benefits.

Drawings

Fig. 1 is an isometric view of the present invention;

FIG. 2 is an external assembly view of the retainer ring of the present invention;

fig. 3 is an assembly view of the damper of the present invention.

In the figure: 1. buckling; 2. a fixing ring; 3. quickly disassembling and assembling the connecting piece; 4. a shock absorber; 5. a pipe body; 6. rotating the connecting piece; 7. and (5) damping the hammer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Further, it will be appreciated that the dimensions of the various elements shown in the figures are not drawn to scale, for ease of description, and that the thickness or width of some layers may be exaggerated relative to other layers, for example.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined or illustrated in one figure, it will not need to be further discussed or illustrated in detail in the description of the following figure.

As shown in fig. 1-3, the utility model provides a technical solution: a quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device, includes solid fixed ring 2, quick assembly disassembly connecting piece 3 and shock absorber 4.

It should be noted that, in the embodiment provided in the application, the fixing ring 2 is provided with the buckle 1 and the rotating connecting piece 6, and the rotating connecting piece 6 is a detachable structure.

It should be emphasized that, in the embodiment that this application provided, rotate the inside knot that is provided with of connecting piece 6, rotate the knot and divide into two semicircle rings with solid fixed ring 2, the one end fixedly connected with buckle 1 of one of them semicircle ring, the joint groove has been seted up to the one end of another semicircle ring, buckle 1 and joint groove looks adaptation.

Referring to fig. 2, in the embodiment provided in the present application, the quick-release connecting element 3 is fixedly connected to one end of the outer portion of the fixing ring 2, the quick-release connecting element 3 is provided in plural numbers, and is uniformly fixed to the outer portion of the fixing ring 2 at equal angles, and the shock absorber 4 is fixed to the top end of the quick-release connecting element 3.

Referring to fig. 3, in the embodiment provided by the present application, the damper 4 includes a connecting rod and two damper hammers 7, the two damper hammers 7 are respectively installed at both ends of the connecting rod, and the outer portion of the connecting rod and the output end of the quick-release coupling 3 are fixed.

It should be noted that, in the embodiment provided in this application, the joint has body 5 between the solid fixed ring 2, and the axis and the connecting rod of body 5 are parallel.

Referring to fig. 1, in the embodiment provided in the present application, the exterior of the damper weight 7 is a "dog bone" structure, and a buffer rubber block is fixedly connected to the output end of the damper weight 7.

It should be noted that the "dog bone" shock absorber introduced into the ocean engineering at the end of the last eighties of the last century served as a damping mode for the wind-induced vortex-induced vibration of the rod during the construction of the jacket platform. The rod is cylindrical, and the special shape makes it impossible to directly fix the damper 7 thereon, and currently, the engineering usually adopts angle iron matching. The angle iron is fixedly connected with the rod piece through welding, holes are formed in the angle iron, and the rod piece is fixed with the vibration reduction hammer 7 through the angle iron. This has drawbacks both in the mounting and dismounting phases of the damper weight 7.

The vibration condition that needs the emphasis is, the vibration condition of each member is often different in the pipe support platform construction process, and the position of damping hammer 7 installation need be adjusted according to the jacket platform construction condition, and damping hammer 7 in this application is in addition installed additional in advance, and the contrast prior art carries out the installation after the member is fixed, has reduced the potential safety hazard when welding angle welder master carries out high altitude construction on the jacket.

Secondly, it should be emphasized that in the embodiments provided in the present application, after the platform is finished, it is difficult to ensure that the structural influence on the rod is not generated in the knockout process of the welding angle iron, and the design provided in the present application slows down the impact of seawater on the platform.

It should be emphasized that in the embodiment that this application provided, the outside both sides of quick assembly disassembly connecting piece 3 are rotated and are connected with fixing bolt, and the outside both sides of solid fixed ring 2 have been seted up positioning thread groove, fixing bolt and positioning thread groove adaptation respectively.

It is further emphasized that in the embodiments provided herein, the predominantly cross-wind vibration causes the duct rack bar assembly to vibrate strongly. When wind vibration is generated on the circular rod piece, alternate vortexes are generated at the back of two sides of the rod piece and fall off alternately from one side to the other side to form a so-called karman vortex street. The occurrence of the karman vortex street causes the pressure on the surface of the rod member to change periodically, as a result, the rod member is acted with periodically changing force, the acting direction is vertical to the wind direction, and the fatigue damage of the rod member is caused. Such vibration caused by the alternate vortex flow and perpendicular to the wind direction is called "vortex-induced vibration" as a cause of occurrence, and the vortex-induced vibration is basically forced vibration generated along with the occurrence of the vortex, and when the vortex period shedding frequency coincides with the natural vibration frequency of the rod member, a resonance response many times larger than the static force effect is generated.

The structural design of the vibration damper meets the requirement that each vibration damper can provide a damping C in the transverse vibration direction of the rod piece for the rod piece under the action of wind load _d The function of (1). The damping hammer is tested according to the technical conditions and the test method of the standard DL/T1099- _d The required amount of damping can be calculated by substituting 145N · s/m into the equation. The minimum clearance between the damper weight 7 and the surrounding structure is 155mm, and the damper weight 7 is not placed in the splash zone.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick assembly disassembly's pipeline wind-induced vortex induced vibration damping device, includes solid fixed ring (2), quick assembly disassembly connecting piece (3) and shock absorber (4), its characterized in that: the fixing ring (2) is provided with a buckle (1) and a rotating connecting piece (6), and the rotating connecting piece (6) is of a detachable structure;

the quick assembly disassembly connecting piece (3) with the outside one end fixed connection of solid fixed ring (2), the quantity of quick assembly disassembly connecting piece (3) has a plurality ofly, and the equal angle is even fix the outside of solid fixed ring (2), shock absorber (4) with the top of quick assembly disassembly connecting piece (3) is fixed.

2. The quick release pipeline wind-induced vortex-induced vibration damping device of claim 1, wherein: the shock absorber (4) comprises a connecting rod and two shock absorption hammers (7), the two shock absorption hammers (7) are respectively arranged at two ends of the connecting rod, and the outer portion of the connecting rod is fixed with the output end of the quick assembly disassembly connecting piece (3).

3. The quick release pipeline wind-induced vortex-induced vibration damping device according to claim 2, wherein: the joint has body (5) between solid fixed ring (2), the axis and the connecting rod of body (5) are parallel.

4. The quick release pipeline wind-induced vortex-induced vibration damping device according to claim 2, wherein: the outside of the vibration damper (7) is of a dog bone structure, and the output end of the vibration damper (7) is fixedly connected with a buffer rubber block.

5. The quick release pipeline wind-induced vortex-induced vibration damping device of claim 1, wherein: the outside both sides of quick assembly disassembly connecting piece (3) are rotated and are connected with fixing bolt, solid fixed ring (2) outside both sides have seted up the positioning thread groove respectively, fixing bolt and positioning thread groove adaptation.

6. The quick-release pipeline wind-induced vortex-induced vibration damping device according to claim 1, wherein: rotate inside being provided with of connecting piece (6) and rotate the knot, rotate the knot and will gu fixed ring (2) divide into two semicircle rings, one end fixedly connected with buckle (1) of one of them semicircle ring, the joint groove has been seted up to the one end of another semicircle ring, buckle (1) and joint groove looks adaptation.