阅读说明：本技术 一种膨胀节保护装置 (Expansion joint protection device ) 是由 黄浩 孙烨 孔维文 王兆强 王磊 于 2021-07-21 设计创作，主要内容包括：本发明公开了一种膨胀节保护装置,膨胀节保护装置包括环绕部,环绕部由片状结构卷曲形成,环绕部沿膨胀节的延伸方向延伸,膨胀节两端的法兰均设在环绕部内；锁紧部,锁紧部设置于环绕部对应膨胀节的其中一个法兰处,锁紧部固定环绕部的片状结构的两个端部以使片状结构围成环状结构,锁紧部的环状结构与法兰过盈配合。环绕部将膨胀节的两端的法兰和膨胀节的中间部位均环设其中,防止膨胀节从外部遭受物理损害,同时,锁紧部将环绕部锁紧在膨胀节其中一处的法兰上,实现固定在该法兰上的目的。环绕部在对应另一处法兰的位置不设置锁紧部,避免环绕部与另一处法兰产生接触,避免对膨胀节的另一处法兰的位移造成干扰,保持了膨胀节本身的工作性能。(The invention discloses an expansion joint protection device which comprises a surrounding part, wherein the surrounding part is formed by curling a sheet structure, extends along the extension direction of an expansion joint, and flanges at two ends of the expansion joint are arranged in the surrounding part; the locking portion is arranged at one of the flanges of the surrounding portion corresponding to the expansion joint, the two ends of the sheet structure of the surrounding portion are fixed by the locking portion, so that the sheet structure surrounds into an annular structure, and the annular structure of the locking portion is in interference fit with the flanges. The surrounding part is arranged in a surrounding mode on flanges at two ends of the expansion joint and the middle position of the expansion joint, the expansion joint is prevented from being physically damaged from the outside, and meanwhile the surrounding part is locked on the flange at one position of the expansion joint through the locking part, and the purpose of being fixed on the flange is achieved. The surrounding part does not set up locking part in the position that corresponds another flange, avoids surrounding part and another flange to produce the contact, avoids causing the interference to the displacement of another flange of expansion joint, has kept the working property of expansion joint itself.)

1. An expansion joint protection device for protecting an expansion joint, the expansion joint protection device comprising:

the surrounding part is formed by curling a sheet structure, the surrounding part extends along the extension direction of the expansion joint, and flanges at two ends of the expansion joint are arranged in the surrounding part;

the locking part is arranged at one of the flanges of the surrounding part corresponding to the expansion joint, the locking part fixes two ends of the sheet structure of the surrounding part so that the sheet structure surrounds into an annular structure, and the annular structure of the locking part is in interference fit with the flanges.

2. The expansion joint protector according to claim 1, wherein the number of the locking portions is plural, a plurality of the locking portions are arranged in the extending direction of the expansion joint, and none of the plurality of the locking portions is adjacent to the other flange of the expansion joint.

3. The expansion joint protector as claimed in claim 1, wherein said locking portion comprises:

bolt holes formed in both end portions of the surrounding portion, respectively, a plurality of the bolt holes being arranged in an extending direction of the expansion joint, none of the bolt holes being close to the other flange of the expansion joint;

bolts inserted into the bolt holes on both the end portions, respectively;

and the nut is arranged at one end of the bolt after penetrating out of the bolt hole.

4. The expansion joint protector according to claim 1, wherein said expansion joint protective sleeve comprises a buffer member, said buffer member is disposed inside said surrounding portion, said buffer member is disposed outside said expansion joint, and said buffer member is attached to said ring structure.

5. The expansion joint protector as claimed in claim 4, wherein said buffer comprises a rubber lining.

6. The expansion joint protector as claimed in claim 4, wherein said buffer is affixed to said surround.

7. The expansion joint protector according to claim 1, wherein said locking portion is provided on the shaft side of said expansion joint remote from the ground, said locking portion extending toward the end remote from the ground.

8. The expansion joint protector according to claim 1, wherein the number of the locking portions is two, the two locking portions are respectively integrally formed at both ends of the surrounding portion, and the two locking portions are connected by welding.

Technical Field

The invention relates to an expansion joint protection device.

Background

The piping of the drilling system requires the use of expansion joints to reduce vibration and compensate for axial deformation. The expansion joint of the well drilling system has high axial flexibility and is easy to deform, the thermal expansion difference generated by different wall temperatures of a pipe and a shell can be compensated, and the axial load of the pipe and the shell is reduced, so that the temperature difference stress of the pipeline and the shell is reduced, the strength damage is avoided, and the existing expansion joint is easy to generate physical damage with other parts in the well drilling system in the using process, so that the pipeline of the well drilling system is damaged, and even the well drilling system cannot stably run.

Disclosure of Invention

The invention aims to overcome the defect that the expansion joint of a drilling system in the prior art is easy to generate physical damage with other parts, so that the drilling system cannot stably operate, and provides an expansion joint protection device.

The invention solves the technical problems through the following technical scheme:

an expansion joint protection device for protecting an expansion joint, the expansion joint protection device comprising:

the surrounding part is formed by curling a sheet structure, the surrounding part extends along the extension direction of the expansion joint, and flanges at two ends of the expansion joint are arranged in the surrounding part;

the locking part is arranged at one of the flanges of the surrounding part corresponding to the expansion joint, the locking part fixes two ends of the sheet structure of the surrounding part so that the sheet structure surrounds into an annular structure, and the annular structure of the locking part is in interference fit with the flanges.

Among this technical scheme, the expansion joint can be encircleed to the surrounding part, the surrounding part is all encircleed with the flange at the both ends of expansion joint and the intermediate position of expansion joint and is established wherein, prevent that the expansion joint from suffering physical damage from the outside, and simultaneously, the locking part locks the surrounding part on the flange of one of them department of expansion joint, the realization is fixed the purpose on this flange, because, the surrounding part does not set up locking part in the position that corresponds another department flange, avoid surrounding part and another department flange to produce the contact, avoid causing the interference to the displacement of another department flange of expansion joint, the working property and the cushioning effect of expansion joint itself have been kept.

Preferably, the number of the locking portions is multiple, the locking portions are arranged along the extending direction of the expansion joint, and none of the locking portions is close to another flange of the expansion joint.

Among this technical scheme, locking portion includes a plurality ofly, and a plurality of locking portions are arranged along the extending direction of expansion joint, can strengthen locking portion to the fixed of surrounding part for the gap is difficult to produce to the sheet structure's of surrounding part tip, and a plurality of locking portions are not close to another flange of expansion joint simultaneously, and locking portion can not cause the interference to the normal operating of expansion joint.

Preferably, the locking portion includes:

bolt holes formed in both end portions of the surrounding portion, respectively, a plurality of the bolt holes being arranged in an extending direction of the expansion joint, none of the bolt holes being close to the other flange of the expansion joint;

bolts inserted into the bolt holes on both the end portions, respectively;

and the nut is arranged at one end of the bolt after penetrating out of the bolt hole.

Among this technical scheme, the bolt hole is arranged along the extending direction of expansion joint, can be so that bolt hole and bolt cooperation strengthen the locking effect of expansion joint for the tip of the sheet structure of expansion joint is difficult to produce the gap. At least one bolt hole is established on the surrounding part corresponds one of them flange of expansion joint, and a plurality of locking portions do not all are close to another flange of expansion joint, because the internal diameter of the flange of expansion joint is greater than the internal diameter of the pars contractilis of expansion joint, therefore the bolt can fix the surrounding part at the expansion joint and do not influence the motion of expansion joint.

Preferably, the expansion joint protective sheath includes the bolster, the bolster is established the portion inboard surrounds, the bolster is established the expansion joint outside, the bolster with the loop configuration is laminated mutually.

Among this technical scheme, the expansion joint is closely laminated to the bolster, can be when the expansion joint motion, the vibrations energy of absorption expansion joint increases the stability that expansion joint protection device and expansion joint are connected, avoids the retaining member to break away from out the expansion joint.

Preferably, the buffer comprises a rubber lining.

Among this technical scheme, the bolster includes rubber inside lining, and rubber inside lining is used commonly easily, and convenient processing can realize buffering effect.

Preferably, the buffer member is adhered to the surrounding portion.

Among this technical scheme, the one side that the expansion joint was kept away from to the bolster is pasted in the one side that the surrounding part is close to the expansion joint for the bolster is in the use, and the bolster is difficult to break away from expansion joint protection device, increases the stability that the bolster used.

Preferably, the locking part is arranged on the shaft side of the expansion joint far away from the ground, and the locking part extends towards one end far away from the ground.

In the technical scheme, the locking part is arranged at one end, far away from the ground, of the expansion joint, the expansion joint is arranged on the ground, the locking part is arranged at one end, far away from the ground, and the locking part can be opened and closed conveniently when needed.

The quantity of locking portion is two, respectively integrated into one piece in the both ends of encircleing the portion, two connect through the welding mode between the locking portion.

In the technical scheme, the locking parts are integrally formed at the two ends of the surrounding part, the two locking parts are more tightly connected in a welding mode, other parts are not needed to be adopted to connect the locking parts and the surrounding part, and the stability between the locking parts and the connecting part is improved.

The positive progress effects of the invention are as follows:

the expansion joint can be encircleed to the surrounding part, the surrounding part is all encircleed with the flange at the both ends of expansion joint and the intermediate position of expansion joint and is established wherein, prevent that the expansion joint from suffering physical damage from the outside, and simultaneously, locking part locks the surrounding part on the flange of one of them department of expansion joint, the realization is fixed the purpose on this flange, because, the surrounding part does not set up locking part in the position that corresponds another department flange, avoid surrounding part and another department flange to produce the contact, avoid causing the interference to the displacement of another department flange of expansion joint, the working property and the cushioning effect of expansion joint itself have been kept.

Drawings

Fig. 1 is a schematic structural view of an expansion joint protection device according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of an expansion joint according to embodiment 1 of the present invention.

Fig. 3 is a schematic view of the working state of the expansion joint in the expansion joint protection device according to embodiment 1 of the present invention.

Fig. 4 is a side view of a locking portion of embodiment 1 of the present invention.

Fig. 5 is a side view of a locking portion of embodiment 2 of the present invention.

Description of reference numerals:

expansion joint 100

Surrounding part 1

Locking part 2

End part 3

Bolt hole 4

Bolt 5

Nut 6

Buffer 7

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 and fig. 2, in the present embodiment, an expansion joint protection device is disclosed, the expansion joint protection device is used for protecting an expansion joint 100, the expansion joint protection device includes a surrounding portion 1 and a locking portion 2, the surrounding portion 1 is formed by curling a sheet structure, the surrounding portion 1 extends around the extension direction of the expansion joint 100, in the present embodiment, two end portions 3 of the expansion joint 100 are both provided with flanges, and two flanges of the expansion joint 100 are both arranged in the surrounding portion 1. The locking part 2 is arranged at one of the flanges of the surrounding part 1 corresponding to the expansion joint 100, and the locking part 2 fixes two ends 3 of the sheet structure of the surrounding part 1, so that the sheet structure surrounds an annular structure, and the annular structure of the locking part 2 is in interference fit with the flanges.

The flange of encircleing portion 1 with expansion joint 100 both ends and the middle part of expansion joint 100 all encircle and establish wherein, can prevent that whole expansion joint 100 from receiving external physical damage, locking portion 2 passes through ring structure and flange interference fit, prevents that expansion joint protection device from breaking away from out expansion joint 100, realizes fixing the purpose on this flange surrounding portion 1. Meanwhile, the locking part 2 is close to one of the flanges, so that the surrounding part 1 is prevented from contacting the other flange, the displacement of the other flange of the expansion joint 100 cannot be interfered, and the working performance and the damping effect of the expansion joint 100 are kept.

As shown in fig. 1 and 3, the number of the locking portions 2 is plural, the plurality of locking portions 2 are arranged along the extending direction of the expansion joint 100, and none of the plurality of locking portions 2 is close to the other flange of the expansion joint 100. The locking parts 2 are arranged along the extending direction of the expansion joint 100, the fixing effect of the locking parts 2 on the surrounding part 1 can be enhanced, so that gaps are not easily generated at the end parts 3 of the sheet structures of the surrounding part 1, meanwhile, the locking parts 2 are not close to the other flange of the expansion joint 100, and the locking parts 2 cannot cause interference on the normal operation of the expansion joint 100.

As shown in fig. 1 and 2, the locking portion 2 is provided on the shaft side of the expansion joint 100 away from the ground, and the locking portion 2 extends toward the end away from the ground. The expansion joint 100 is arranged on the ground, and the locking part 2 is arranged at one end far away from the ground, so that the locking part 2 can be conveniently opened and closed when needed.

As shown in fig. 1 and 4, the locking portion 2 includes a bolt hole 4, a bolt 5, and a nut 6. The plurality of bolt holes 4 are formed in both end portions 3 of the surrounding portion 1, respectively, the plurality of bolt holes 4 are arranged along the extending direction of the expansion joint 100, and the plurality of bolt holes 4 are not close to the other flange of the expansion joint 100. A plurality of bolts 5 are inserted into the bolt holes 4 on the two end portions 3, respectively, and nuts 6 are provided at one ends of the bolts 5 after passing through the bolt holes 4 on the two end portions 3. The bolt holes 4 are arranged along the extending direction of the expansion joint 100, so that the bolt holes 4 and the bolts 5 are matched, the locking effect of the expansion joint 100 is strengthened by the plurality of mutually matched bolt holes 4 and bolts 5, and a gap is not easy to generate at the end part 3 of the sheet structure of the expansion joint 100. All the locking parts 2 are not close to the other flange of the expansion joint 100, and since the inner diameter of the flange of the expansion joint 100 is larger than that of the telescopic part of the expansion joint 100, the bolts 5 can fix the surrounding part 1 on the flange of the expansion joint 100 without affecting the movement of the expansion joint 100.

The expansion joint protection device is provided with a buffer 7, the buffer 7 is arranged between the inner side of the surrounding part 1 and the outer side of the expansion joint 100, and the buffer 7 is attached to the annular structure. The buffer member 7 is tightly attached to the expansion joint 100, so that the energy of expansion vibration can be absorbed when the expansion joint 100 moves, the connection stability of the expansion joint protection device and the expansion joint 100 is improved, and the locking member is prevented from being separated from the expansion joint 100. The buffer member 7 can adopt a rubber lining which is commonly used and easily obtained, is convenient to process and can realize the buffering effect.

As shown in fig. 1 and 4, one surface of the buffer 7, which is far away from the expansion joint 100, is adhered to one surface of the surrounding part 1, which is close to the expansion joint 100, so that the buffer 7 is not easy to separate from the expansion joint protection device in the use process of the expansion joint 100, and the use stability of the buffer 7 is improved.

Example 2

As shown in fig. 5, in the present embodiment, the surrounding portion 1 and the locking portion 2 are formed by curling an integrated sheet structure. The quantity of locking portion 2 is two, and integrated into one piece is respectively in the both ends of encirclement portion 1, and locking portion 2 can be through two tip 3 of the sheet structure of welding encirclement portion 1 for sheet structure constitutes ring structure, makes locking portion 2 with the fixed setting on expansion joint 100 of encirclement portion 1.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.