CN216555926U - Double-flow-direction compound compensator - Google Patents

Abstract

The utility model discloses a double-flow-direction compound compensator, which relates to the technical field of pipeline compensation and comprises an intermediate pipe and two corrugated pipes respectively arranged at two ends of the intermediate pipe, wherein one end of each corrugated pipe, which is far away from the intermediate pipe, is provided with a butt pipe, the corrugated pipes are sleeved with flow guide pipes, the fixed ends of the flow guide pipes are fixedly connected with the inner walls of the butt pipes, the movable ends of the two flow guide pipes are identical in structure and are symmetrically hooked together, the longitudinal sections of the movable ends are U-shaped structures, the two U-shaped structures are staggered and buckled together, one vertical edge of the U-shaped structure is connected with the main pipe body of the corresponding flow guide pipe, a buffer ring is arranged in a space defined by the two U-shaped structures, and the buffer ring has elasticity. So set up, two expansion ends collude each other and link together, the phenomenon of can not appearing declutching, and the buffer ring plays the cushioning effect to the relative movement between two expansion ends, can avoid the compensator to become invalid, has prolonged the life of compensator.

Description

Double-flow-direction compound compensator

Technical Field

The utility model relates to the technical field of pipeline compensation, in particular to a double-flow-direction compound compensator.

Background

A multicompensator is generally composed of an intermediate connection pipe, two end connection pipes and a bellows arranged between the intermediate connection pipe and the respective end connection pipe. In order to prevent the corrugated pipe from being washed by the medium and avoid the vibration of the compensator, a guide cylinder axially covering the corrugated pipe is usually arranged in the corrugated pipe of the compound compensator, and the guide direction of the guide cylinder is from a fixed end to a movable end, so the compound compensator is usually only suitable for the pipeline with the fluid medium in a single flow direction. For a pipeline with double flow directions, a labyrinth seal structure is formed by arranging fixed ends of two guide cylinders on a butt pipe and between movable ends of the two guide cylinders, so that bidirectional flow guiding of the guide cylinders is realized, as shown in fig. 1.

However, the labyrinth seal structure has the following problems: when the corrugated pipe is shortened along the axial direction, the movable ends of the two guide cylinders are easy to disengage, and the guide cylinders also have certain vibration in the radial direction due to the impact of fluid media, so that the end parts of the movable ends of the two guide cylinders can be abutted together and the buckling state of the labyrinth seal structure cannot be recovered, and the compensator is easy to fail; when the corrugated pipe extends along the axial direction, the end part of the movable end of the guide cylinder is easy to generate mechanical impact, so that the compound compensator generates larger vibration and the service life of the compound compensator is influenced.

Therefore, how to solve the problems that the movable ends of the guide shell are easy to be separated and the end parts of the movable ends are easy to be impacted by mechanical impact to shorten the service life of the double compensator is an important technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-flow-direction compensator to solve the problems that movable ends of guide cylinders are easy to separate, and the end parts of the movable ends are easy to be subjected to mechanical impact to shorten the service life of the double compensator. The technical effects that can be produced by the preferred technical scheme of the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a double-flow-direction compound compensator which comprises a middle pipe and two corrugated pipes arranged at two ends of the middle pipe respectively, wherein one end of each corrugated pipe, which is far away from the middle pipe, is provided with an end-connected pipe, a flow guide pipe is sleeved in each corrugated pipe, the fixed end of each flow guide pipe is fixedly connected with the inner wall of the end-connected pipe, the movable ends of the two flow guide pipes are identical in structure and are symmetrically hooked together, the longitudinal section of each movable end is of a U-shaped structure, the two U-shaped structures are arranged in a staggered mode and are buckled together, one vertical edge of the U-shaped structure is connected with the corresponding main pipe body of the flow guide pipe, a buffer ring is arranged in a space defined by the two U-shaped structures, and the buffer ring has elasticity.

Preferably, a plurality of connecting assemblies are arranged between each end joint pipe and the middle pipe, and the connecting assemblies arranged on the periphery of the same corrugated pipe are uniformly distributed along the circumferential direction of the corrugated pipe.

Preferably, the periphery of each corrugated pipe is sleeved with a protection cylinder, and the protection cylinder is fixedly connected with the end joint pipe at the end part of the corresponding corrugated pipe.

Preferably, each the outer wall of end joint pipe all is equipped with the tip ring flange, the outer wall at the both ends of intermediate pipe respectively is equipped with a middle ring flange, the tip ring flange with rather than being close to the middle ring flange pass through coupling assembling is connected.

Preferably, the tip ring flange with the middle ring flange all is equipped with the through-hole, and coupling assembling is including running through the pull rod of through-hole and setting are in the nut at the both ends of pull rod.

Preferably, the outer wall of each end joint pipe is provided with an end flange, and one end of the protection cylinder is fixedly connected with one side of the end flange.

Preferably, the material of the buffer ring is sponge rubber.

Preferably, the outer wall of the end part of the corrugated pipe is provided with a hoop so as to enable the corrugated pipe and the middle pipe and the corrugated pipe and the end pipe to be tightly connected.

The utility model provides a technical scheme that a double-flow-direction compound compensator comprises a middle pipe, two corrugated pipes and two end-connected pipes, wherein the two corrugated pipes are respectively arranged at two ends of the middle pipe, the end-connected pipes are arranged at one ends of the corrugated pipes far away from the middle pipe, flow guide pipes are respectively arranged in the two corrugated pipes, the fixed ends of the flow guide pipes are correspondingly connected to the inner walls of the end-connected pipes, the movable ends of the two flow guide pipes are identical in structure and are symmetrically hooked together, the longitudinal sections of the movable ends of the flow guide pipes are of a U-shaped structure, the two U-shaped structures are arranged in a staggered mode and are buckled together up and down, one vertical edge of the U-shaped structure is connected with the main pipe body of the corresponding flow guide pipe, a buffer ring is arranged in a space defined by the two U-shaped structures, and the buffer ring has elasticity. Due to the arrangement, when the corrugated pipe is shortened along the axial direction, the two end-connecting pipes are close to each other, the movable ends of the flow guide pipes move in opposite directions along the axial direction, the U-shaped structures are buckled with each other, and the vertical edge of one U-shaped structure is hooked with the vertical edge of the other U-shaped structure, so that the movable ends of the two flow guide pipes cannot be separated, the buffer ring can also play a certain role in buffering, and the phenomenon that the two movable ends collide with each other to shorten the service life of the double-flow-direction compound compensator is avoided; when the corrugated pipe extends along the axial direction, the two end-connecting pipes are far away from each other, and when the space enclosed by the two U-shaped structures reaches the maximum, the two corrugated pipes can not be further extended, so that the damage caused by over-extension of the corrugated pipe can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a prior art labyrinth seal;

FIG. 2 is a schematic diagram of a dual flow direction compound compensator in an embodiment of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2.

In the figure:

1-middle tube, 2-corrugated tube, 3-end connecting tube, 4-honeycomb duct, 41-main tube, 42-movable end, 5-protective tube, 6-connecting assembly, 61-pull rod, 62-nut, 7-end flange, 8-middle flange and 9-buffer ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The present embodiment is directed to a dual-flow-direction dual compensator, which solves the problems that the movable ends of the guide shell are easily separated from each other, and the end of the movable end is easily subjected to mechanical impact, thereby shortening the service life of the dual compensator.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the utility model described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the utility model described in the claims.

Referring to fig. 2-3, in this embodiment, the dual-flow direction compound compensator includes a middle tube 1, two corrugated tubes 2 and two end-connected tubes 3, the two corrugated tubes 2 are respectively disposed at two ends of the middle tube 1, the end-connected tubes 3 are disposed at one end of the corrugated tubes 2 far from the middle tube 1, the two corrugated tubes 2 are each provided with a flow guide tube 4, the fixed end of each flow guide tube 4 is correspondingly connected to the inner wall of the end-connected tube 3, the movable ends 42 of the two flow guide tubes 4 have the same structure and are symmetrically hooked together, the movable ends 42 of the flow guide tubes 4 have a "u" -shaped structure in longitudinal section, the two "u" -shaped structures are staggered and fastened together up and down, one vertical side of the "u" -shaped structure is connected to the main tube 41 of the corresponding flow guide tube 4, the other vertical sides of the two "u" -shaped structures are hooked together, a buffer ring 9 is disposed in the space surrounded by the two "u" -shaped structures, the cushion ring 9 has elasticity.

The fixed ends of the two flow guide pipes 4 are respectively and fixedly connected with the corresponding end connecting pipes 3, so that the double-flow-direction compound compensator is suitable for double-flow-direction pipelines; the provision of two corrugated pipes 2 can increase the amount of compensation of the dual flow-direction compound compensator. When the corrugated pipe 2 is shortened along the axial direction, the two end-connecting pipes 3 are close to each other, the movable ends 42 of the guide pipe 4 move oppositely along the axial direction, the U-shaped structures are buckled with each other, the space formed by buckling is reduced, the buffer ring 9 has a buffer effect on the relative movement of the U-shaped structures, the mechanical impact is avoided, and the two U-shaped structures buckled together cannot be disengaged; when corrugated pipe 2 lengthens along the axial direction, two end-connecting pipes 3 are far away from each other, the space formed by buckling two U-shaped structures is gradually enlarged, when the space surrounded by the two U-shaped structures reaches the maximum, two corrugated pipes 2 can not be further lengthened, and the damage caused by excessive extension of corrugated pipe 2 can be avoided.

In a specific embodiment, two sidewalls perpendicular to the axial direction of the nozzle 4 are present in the space defined by the two u-shaped structures, and two ends of the buffer ring 9 are fixedly connected to the two sidewalls, so that the buffer ring 9 elastically changes with the size of the space defined by the two u-shaped structures, and the acting force between the movable ends 42 of the two nozzles 4 is better buffered.

By the arrangement, the problems that the compensator fails due to the fact that the movable ends 42 of the two flow guide pipes 4 are easy to disengage in the prior art, and the service life of the compensator is shortened due to the fact that mechanical impact is easy to generate between the movable ends 42 are solved.

In a specific embodiment, the cushion ring 9 is made of sponge rubber. The sponge rubber is a porous structure material with pores distributed throughout the whole material, is light, soft and elastic, and has the functions of shock resistance, shock mitigation and the like.

In the preferred scheme of this embodiment, all be equipped with a plurality of coupling assembling 6 between each end pipe 3 and the intermediate pipe 1, set up each coupling assembling 6 of same bellows 2 periphery along this bellows 2's circumference evenly distributed.

In a specific embodiment, the outer wall of each end connecting pipe 3 is sleeved with an end flange 7, the outer walls close to the two ends of the middle pipe 1 are sleeved with a middle flange 8, the end flanges 7 are welded on the outer walls of the end connecting pipes 3, the middle flanges 8 are welded on the outer walls of the middle pipe 1, and each end flange 7 is connected with the middle flange 8 close to the end flange through a connecting component 6.

Furthermore, through holes are arranged at the corresponding positions of the end flange 7 and the middle flange 8 close to the end flange, and the connecting assembly 6 comprises a pull rod 61 arranged in the through holes in a penetrating manner and nuts 62 arranged at two ends of the pull rod 61. Nuts 62 are provided on the side of the end flange 7 remote from the intermediate flange 8 and on the side of the intermediate flange 8 adjacent to the other intermediate flange 8.

In a preferred scheme of the present embodiment, a protection tube 5 is sleeved on the periphery of each corrugated tube 2, and the protection tube 5 is fixedly connected with the corresponding end pipe 3 at the end of the corrugated tube 2. A gap is arranged between the inner wall of the protection cylinder 5 and the outer wall of the corrugated pipe 2, so that the corrugated pipe 2 can stretch conveniently. In the specific embodiment, one end of the protective cylinder 5 is fixedly connected with one side of the end flange 7.

So set up, a protection section of thick bamboo 5 plays certain guard action to bellows 2, avoids the outside earth of bellows 2 etc. to produce the hindrance to bellows 2's flexible, influences the compensation ability of double flow to compound compensator.

In the preferred scheme of this embodiment, one end of the corrugated tube 2 is sleeved on the outer wall of the end of the middle tube 1, and the other end is sleeved on the outer wall of the end tube 3, and the outer wall of the end of the corrugated tube 2 is further provided with a hoop, so that the end of the corrugated tube 2 is fastened and connected with the middle tube 1 and the end tube 3 by the hoop.

This prevents the bellows 2 from being detached from the intermediate pipe 1 or the end pipe 3 under the impact of the fluid medium.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the utility model comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (8)

1. A double-flow-direction compound compensator is characterized by comprising an intermediate pipe (1) and two corrugated pipes (2) respectively arranged at two ends of the intermediate pipe (1), wherein one ends, far away from the intermediate pipe (1), of the corrugated pipes (2) are respectively provided with a butt-joint pipe (3), the corrugated pipes (2) are respectively sleeved with a flow guide pipe (4), the fixed end of each flow guide pipe (4) is fixedly connected with the inner wall of the butt-joint pipe (3), the movable ends (42) of the two flow guide pipes (4) are identical in structure and symmetrically hooked together, the longitudinal section of each movable end (42) is of a U-shaped structure, the two U-shaped structures are staggered and buckled together, one vertical edge of the U-shaped structure is connected with a main pipe (41) of the corresponding flow guide pipe (4), a buffer ring (9) is arranged in a space surrounded by the two U-shaped structures, the buffer ring (9) has elasticity.

2. A dual-flow multiple compensator according to claim 1, characterized in that a plurality of connection assemblies (6) are provided between each end pipe (3) and the middle pipe (1), each connection assembly (6) being provided on the periphery of the same corrugated pipe (2) being evenly distributed along the circumference of the corrugated pipe (2).

3. A dual-flow-direction dual compensator according to claim 1, wherein each of the corrugated pipes (2) is sleeved at its outer periphery with a protective tube (5), and the protective tube (5) is fixedly connected to the corresponding end pipe (3) at the end of the corrugated pipe (2).

4. A dual flow direction compound compensator according to claim 2, characterized in that the outer wall of each of said end pipes (3) is provided with an end flange (7), the outer walls of both ends of said intermediate pipe (1) are provided with an intermediate flange (8), said end flanges (7) and said intermediate flanges (8) adjacent thereto are connected by said connecting members (6).

5. A dual flow direction compound compensator according to claim 4, characterized in that the end flanges (7) and the intermediate flanges (8) are provided with through holes, and the connecting assembly (6) comprises tie rods (61) extending through the through holes, and nuts (62) provided at both ends of the tie rods (61).

6. A dual flow direction compound compensator according to claim 3, characterized in that the outer wall of each of said end pipes (3) is provided with an end flange (7), one end of said protective cartridge (5) being fixedly connected to one side of said end flange (7).

7. A dual-flow-direction compound compensator according to claim 1, characterized in that the cushion ring (9) is made of sponge rubber.

8. A dual flow-direction duplex compensator according to claim 1, characterized in that the outer walls of the end sections of the corrugated pipe (2) are provided with hoops to secure the connection between the corrugated pipe (2) and the intermediate pipe (1) and between the corrugated pipe (2) and the end pipes (3).

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