CN212617000U

CN212617000U - Double-layer expansion joint with damping structure

Info

Publication number: CN212617000U
Application number: CN202021427257.2U
Authority: CN
Inventors: 李娜; 武金库; 王希志
Original assignee: Shandong Huarui Bellows Co ltd
Current assignee: Shandong Huarui Bellows Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-02-26
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a double-deck expansion joint with shock-absorbing structure, including bellows and annular slab, the bottom mounting of bellows has first end pipe, the bottom mounting of first end pipe has first flange, the top of bellows is fixed with second end pipe, the top of second end pipe is fixed with the second flange, first end pipe, bellows and second end pipe communicate in proper order, the cover is equipped with the annular slab on the cyclic annular arch in the bellows outside, the annular inboard protruding fixed connection in the bellows outside, per two be fixed with the spring between the relative one side of annular slab, per two it has six springs, spring and bellows contactless to be annular array distribution between the relative one side of annular slab. The utility model has the advantages of set up buffering shock-absorbing structure on the bellows, alleviate the power that the bellows bore.

Description

Double-layer expansion joint with damping structure

Technical Field

The utility model relates to an expansion joint technical field specifically is a double-deck expansion joint with shock-absorbing structure.

Background

An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. Expansion joints are also conventionally called compensators, or expansion joints. It is composed of bellows, end pipe, support, flange and pipe. The expansion joint is a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses due to temperature differences and mechanical vibrations. The effective telescopic deformation of the working body corrugated pipe is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction due to heat and the like or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like. The compensator is arranged on the pipeline to compensate the thermal extension of the pipeline, thereby reducing the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure.

The double-layer expansion joint mainly depends on the corrugated pipe to realize compensation of additional stress, the additional stress acts on the corrugated pipe and is born by the corrugated pipe integrally, the corrugated pipe is subjected to damage caused by long bearing time, and the service life of the corrugated pipe is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-deck expansion joint with shock-absorbing structure possesses and sets up buffering shock-absorbing structure on the bellows, alleviates the advantage of the power that the bellows bore, has solved additional stress and has acted on the bellows, is undertaken by the bellows is integrative, and bellows bearing capacity has been long for a time can cause the damage of bellows, reduces the life's of bellows problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a double-deck expansion joint with shock-absorbing structure, includes bellows and annular slab, the bottom mounting of bellows has first end pipe, the bottom mounting of first end pipe has first flange, the top of bellows is fixed with the second end pipe, the top of second end pipe is fixed with the second flange, the cover is equipped with the annular slab on the cyclic annular arch in the bellows outside, the inboard cyclic annular protruding fixed connection in annular slab and the bellows outside, per two be fixed with the spring between the relative one side of annular slab.

Preferably, the first end pipe, the corrugated pipe and the second end pipe are sequentially communicated, and the joint of the first end pipe and the corrugated pipe, the joint of the second end pipe and the corrugated pipe are welded and sealed.

Preferably, the first flange and the second flange are respectively provided with six connecting holes in an annular array.

Preferably, six springs are distributed between two opposite sides of the annular plate in an annular array, and the springs are not in contact with the corrugated pipe.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses a set up annular plate and spring, reached the effect that alleviates the power that the bellows bore, the utility model discloses be provided with annular plate and spring, the bottom mounting of bellows has first end pipe, and first end pipe bottom mounting has first flange, and the top of bellows is fixed with second end pipe, and second end pipe top mounting has the second flange, and first end pipe, bellows and second end pipe communicate in proper order, and outside pipeline is connected respectively to first flange and second flange. An annular plate is fixed on the annular bulge on the outer side of the corrugated pipe, and six springs are fixed between the opposite sides of every two annular plates in an annular array. Axial, transverse and angular displacement of the pipeline are compensated by effective telescopic deformation of the corrugated pipe, when the corrugated pipe is compensated, force applied to the corrugated pipe acts on the spring, the spring converts the force into elastic potential energy, and the spring bears partial acting force to reduce the force applied to the corrugated pipe.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is an enlarged schematic view of the utility model at a;

FIG. 3 is a schematic view of the connection structure of the annular plate in a top view;

fig. 4 is a schematic view of the flange of the present invention.

In the figure: 1. a first flange; 2. a first end tube; 3. a bellows; 4. an annular plate; 5. a spring; 6. a second end tube; 7. a second flange; 8. and connecting the holes.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a double-deck expansion joint with shock-absorbing structure, includes bellows 3 and annular slab 4, the bottom mounting of bellows 3 has first end pipe 2, the bottom mounting of first end pipe 2 has first flange 1, the top mounting of bellows 3 has second end pipe 6, the top mounting of second end pipe 6 has second flange 7, first end pipe 2, bellows 3 and second end pipe 6 communicate in proper order, first end pipe 2 and second end pipe 6 seal with the junction welding of bellows 3. Six connecting holes 8 are formed in the first flange 1 and the second flange 7 in an annular array mode respectively, and the first flange 1 and the second flange 7 are connected with an external pipeline respectively. The axial, transverse and angular displacements of the pipe are compensated by the effective telescopic deformation of the bellows 3.

The annular bulge on the outer side of the corrugated pipe 3 is sleeved with an annular plate 4, the inner side of the annular plate 4 is fixedly connected with the annular bulge on the outer side of the corrugated pipe 3, a spring 5 is fixed between the opposite sides of every two annular plates 4, and the elastic coefficient of the spring 5 is selected by a worker in the field according to the actual situation. Six springs 5 are distributed between the opposite sides of every two annular plates 4 in an annular array, and the springs 5 are not in contact with the corrugated pipe 3. When the corrugated pipe 3 compensates the additional stress, the force applied to the corrugated pipe 3 acts on the spring 5, the spring 5 converts the force into elastic potential energy, and the spring 5 bears partial acting force to reduce the force applied to the corrugated pipe 3.

The working principle is as follows: the joints of the first end pipe 2 and the second end pipe 6 and the corrugated pipe 3 are welded and sealed, and the first flange 1 and the second flange 7 are respectively connected with an external pipeline. When the corrugated pipe 3 compensates the additional stress, the force applied to the corrugated pipe 3 acts on the spring 5, the spring 5 converts the force into elastic potential energy, and the spring 5 bears partial acting force to reduce the force applied to the corrugated pipe 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a double-deck expansion joint with shock-absorbing structure, includes bellows (3) and annular plate (4), its characterized in that: the bottom mounting of bellows (3) has first end pipe (2), the bottom mounting of first end pipe (2) has first flange (1), the top of bellows (3) is fixed with second end pipe (6), the top of second end pipe (6) is fixed with second flange (7), the cover is equipped with annular plate (4) on the cyclic annular arch in bellows (3) outside, and annular plate (4) inboard and the cyclic annular protruding fixed connection in bellows (3) outside are every two be fixed with spring (5) between the relative one side of annular plate (4).

2. The double-layer expansion joint with the shock-absorbing structure as set forth in claim 1, wherein: the first end pipe (2), the corrugated pipe (3) and the second end pipe (6) are sequentially communicated, and the joint of the first end pipe (2) and the corrugated pipe (3) and the second end pipe (6) is welded and sealed.

3. The double-layer expansion joint with the shock-absorbing structure as set forth in claim 1, wherein: six connecting holes (8) are respectively formed in the first flange (1) and the second flange (7) in an annular array.

4. The double-layer expansion joint with the shock-absorbing structure as set forth in claim 1, wherein: six springs (5) are distributed between two opposite sides of the annular plate (4) in an annular array mode, and the springs (5) are not in contact with the corrugated pipe (3).