CN223447953U - A compound free type compensator - Google Patents

Abstract

The utility model discloses a compound free compensator, which relates to the field of compensators, in particular to a compound free compensator, comprising two corrugated pipes which can be combined together, wherein two ends of each corrugated pipe are respectively provided with an end pipe, the outer sides of the end pipes are provided with flanges, a rotating component for compensating angular displacement is arranged between the two opposite end pipes, the rotating component comprises a first pipe, a second pipe and a third pipe which are respectively arranged on the two end pipes, and a bearing is arranged between the two second pipes.

Description

Duplex free compensator

Technical Field

The utility model relates to the field of compensators, in particular to a compound free compensator.

Background

Expansion joints are also conventionally known as compensators, or telescopic joints. The device consists of a corrugated pipe (an elastic element) which forms a working main body of the device, and accessories such as an end pipe, a bracket, a flange, a conduit and the like. Expansion joints are a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses caused by temperature differences and mechanical vibrations. The effective expansion and contraction deformation of the corrugated pipe of the working main body is utilized to absorb the dimensional changes of pipelines, ducts, containers and the like caused by expansion due to heat, contraction due to cold and the like, or compensate the axial, transverse and angular displacement of the pipelines, ducts, containers and the like. The heat-insulating pipe can also be used for noise reduction, vibration reduction and heat supply, and in order to prevent the pipeline from deforming or being damaged due to thermal elongation or temperature stress when the heat-insulating pipe is heated, a compensator needs to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipe wall and acting force acting on a valve element or a support structure are reduced.

The bellows expansion joint is an expansion joint made of metal bellows. It can be extended and contracted along the axial direction of pipeline, and also can be used for compensating axial length of pipeline. In order to prevent the allowable compensation amount from being exceeded, a protective pull rod or a protective ring is arranged at two ends of the corrugated pipe, and guide brackets are arranged on the pipelines at two ends connected with the protective pull rod or the protective ring. In addition, the expansion joint also comprises a corner expansion joint and a transverse expansion joint, and the expansion joint can be used for compensating the corner deformation and the transverse deformation of the pipeline.

The existing compensator can compensate axial displacement, when the angular displacement is compensated, the performance of the corrugated pipe is very dependent on the material of the corrugated pipe, when the angular displacement exceeds the performance of the corrugated pipe, the compensator is easily damaged by the angular displacement to reduce the fatigue resistance of the corrugated pipe, the damage of the compensator is seriously caused, the damage of the compensator is easily caused, the sealing performance is reduced, and the damage of the compensator is accelerated.

It is therefore desirable to design a new compound freeform compensator to address the above issues.

Disclosure of utility model

The present utility model is directed to a compound free compensator for solving the above-mentioned problems.

The utility model provides a duplex free compensator which comprises two corrugated pipes which can be combined together, wherein two ends of each corrugated pipe are respectively provided with an end pipe, the outer sides of the end pipes are provided with flanges, a rotating assembly for compensating angular displacement is arranged between the two opposite end pipes, each rotating assembly comprises a first pipe, a second pipe and a third pipe which are respectively arranged on the two end pipes, a bearing is arranged between the two second pipes, and mechanical seals are respectively arranged between the two first pipes and between the two third pipes.

Preferably, a plurality of first lug plates are respectively arranged on two adjacent flanges, one of the first lug plates is provided with an arc-shaped long groove, and a first connecting rod is connected between the two first lug plates.

Preferably, the flange is provided with a plurality of second lug plates, and a connecting rod is arranged between the two second lug plates on the same corrugated pipe.

Preferably, the first pipe and the third pipe are respectively positioned at the inner side and the outer side of the second pipe.

Preferably, the first and second earplates are arranged in a dislocation manner

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

1. According to the utility model, the second pipe is arranged between the two corrugated pipes and connected through the bearing, so that the two corrugated pipes can rotate, a space can be provided for the angular displacement of the guide pipe, and the angular displacement of the guide pipe can be compensated.

2. In the utility model, the first lug plate and the first connecting rod are arranged, the first lug plate is provided with the long groove, and the first connecting rod can move in the long groove, so that the limit on the angular displacement between the two corrugated pipes can be provided, and the exceeding of the allowable compensation amount is prevented.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a left side perspective cross-sectional view of the present utility model.

Fig. 3 is an enlarged view of the utility model at a in fig. 2.

In the figure, 1, a corrugated pipe, 2, an end pipe, 3, a flange, 4, a first pipe, 5, a second pipe, 6, a third pipe, 7, a bearing, 8, a mechanical seal, 9, a first lug plate, 10, a first connecting rod, 11, a second lug plate, 12, a second connecting rod, 13 and a long groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

All electronic components in the application are controlled by an external controller.

Example 1

Referring to fig. 1-3, the present utility model provides a duplex free compensator, which comprises two corrugated pipes 1 capable of being combined together, wherein two ends of the corrugated pipe 1 are respectively provided with an end pipe 2, the outer sides of the end pipes 2 are provided with flanges 3, a rotating assembly for compensating angular displacement is arranged between the two opposite end pipes 2, the rotating assembly comprises a first pipe 4, a second pipe 5 and a third pipe 6 which are respectively arranged on the two end pipes 2, a bearing 7 is arranged between the two pipes 5, a mechanical seal 8 is respectively arranged between the two pipes 4 and between the two pipes 6, the first pipe 4 and the third pipe 6 are respectively positioned at the inner side and the outer side of the second pipe 5, and the first ear plate 9 and the second ear plate 11 are arranged in a staggered manner.

The bellows 1 is the expansion joint that current compensator used, the end pipe 2 welds in the both ends of bellows 1, flange 3 links firmly on end pipe 2, can make things convenient for the installation of this compensator, rotating assembly is located two bellows 1 relative one side, pipe one 4, pipe two 5, pipe three 6 have two respectively, two pipe one 4, two pipe two 5, two pipe three 6 weld in proper order on end pipe 2 from outside to inside, connect through bearing 7 between two pipe two 5, can make the relative rotation take place between two bellows 1, in the angular displacement takes place for the pipe like this, bearing 7 can make and produce the rotation between two bellows 1, avoid bellows 1 rupture, mechanical seal 8 can directly purchase from the market, mechanical seal 8 is located respectively between two pipe one 4, between two pipe three 6, can avoid inside fluid seepage flow through two mechanical seal 8, also can avoid outside fluid to get into, and can protect bearing 7, avoid bearing 7's corruption.

Specifically, a plurality of first ear plates 9 are respectively arranged on two adjacent flanges 3, an arc-shaped long groove 13 is formed in one first ear plate 9, a first connecting rod 10 is connected between the two first ear plates 9, the first ear plates 9 are fixedly connected to the two adjacent flanges 3, the long groove 13 is formed in one first ear plate 9, the long groove 13 is coaxial with the corrugated pipe 1, the first connecting rod 10 can be a screw rod, the first connecting rod 10 is connected between the two first ear plates 9 through a nut, the first connecting rod 10 can rotate in the long groove 13 for a certain angle, the angular displacement of the compensator can be limited, the allowable compensation quantity is avoided being exceeded, and the phenomenon that the pipeline always rotates to cause insufficient fixation is avoided.

The flange 3 is provided with a plurality of second lug plates 11, a connecting rod second 12 is arranged between the two second lug plates 11 on the same corrugated pipe 1, the second lug plates 11 are fixedly connected to the flange 3, and the connecting rod second 12 is fixed between the two second lug plates 11 on the same corrugated pipe 1, so that the compensator can be reinforced, and the compensation amount is prevented from exceeding the allowable range.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (5)

1. The compound free compensator is characterized by comprising two corrugated pipes (1) which can be combined together, wherein two ends of each corrugated pipe (1) are respectively provided with an end pipe (2), the outer sides of the end pipes (2) are provided with flanges (3), and a rotating component for compensating angular displacement is arranged between the two opposite end pipes (2);

The rotary assembly comprises a first tube (4), a second tube (5) and a third tube (6) which are respectively arranged on two end tubes (2), a bearing (7) is arranged between the two tubes (5), and mechanical seals (8) are respectively arranged between the first tube (4) and the third tube (6).

2. A compound free compensator according to claim 1, characterized in that a plurality of first ear plates (9) are respectively arranged on two adjacent flanges (3), wherein one first ear plate (9) is provided with an arc-shaped long groove (13), and a connecting rod (10) is connected between the two first ear plates (9).

3. The compound free compensator according to claim 2, wherein the flange (3) is provided with a plurality of second ear plates (11), and a connecting rod (12) is arranged between the two second ear plates (11) on the same corrugated pipe (1).

4. A compound free compensator according to claim 3, wherein the first tube (4) and the third tube (6) are respectively located on the inner side and the outer side of the second tube (5).

5. A compound free compensator according to claim 4, wherein the first ear plate (9) and the second ear plate (11) are arranged in a staggered manner.