Compound free compensator

Abstract

The utility model discloses a compound free compensator, and relates to the field of compensators, in particular to the compound free compensator which comprises two corrugated pipes capable of being combined together, end pipes are arranged at the two ends of each corrugated pipe respectively, flanges are arranged on the outer sides of the end pipes, and the two ends of each corrugated pipe are connected with the corresponding flange. The utility model relates to an axial displacement compensator, which comprises two opposite end pipes, a rotating component used for compensating angular displacement is arranged between the two opposite end pipes, the rotating component comprises a pipe I, a pipe II and a pipe III which are respectively arranged on the two end pipes, and a bearing is arranged between the two pipes II. The compensator depends on the performance of the corrugated pipe, the performance depends 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 anti-fatigue performance of the corrugated pipe, the compensator is seriously damaged, and the sealing performance is easily reduced due to the damage of the compensator. And the damage of the compensator is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of compensator, specifically is a compound free type compensator. BACKGROUND

[0002] Expansion joint is also called compensator or expansion joint. It is composed of corrugated pipe (a kind of elastic element) and end pipe, support, flange, conduit and other accessories. Expansion joint is a flexible structure arranged on the vessel shell or pipeline to compensate additional stress caused by temperature difference and mechanical vibration. The effective expansion and deformation of the working body corrugated pipe are used to absorb the size change of pipeline, conduit, vessel and the like caused by thermal expansion and cold shrinkage, or compensate the axial, lateral and angular displacement of pipeline, conduit, vessel and the like. It can also be used for noise reduction and vibration reduction, heat supply, to prevent deformation or damage of pipeline due to thermal elongation or temperature stress when the pipeline is heated, and to compensate the thermal elongation of the pipeline to reduce the stress on the pipe wall and the force acting on the valve or support structure.

[0003] Corrugated pipe expansion joint is a kind of expansion joint made of metal corrugated pipe. It can expand and contract along the axis of the pipeline, and also allows a small amount of bending, which is used for axial length compensation of the pipeline. In order to prevent exceeding the allowable compensation amount, protective pull rods or protective rings are arranged at both ends of the corrugated pipe, and guide supports are arranged on the two end pipes connected with the corrugated pipe. In addition, there are corner type and lateral type expansion joints, which can be used to compensate the corner deformation and lateral deformation of the pipeline.

[0004] The existing compensator can compensate the axial displacement. When compensating the angular displacement, it relies on the performance of the corrugated pipe, which depends 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, which reduces the fatigue resistance of the corrugated pipe, and seriously causes damage to the compensator. The damage of the compensator easily leads to the reduction of the sealing performance, which accelerates the damage of the compensator.

[0005] Therefore, it is necessary to design a new compound free type compensator to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a compound free type compensator to solve the problems in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: a compound free type compensator, including two can be combined together bellows, the both ends of bellows are equipped with end pipe respectively, the outside of end pipe is equipped with flange, the opposite two end pipes are equipped with rotating component for compensating angular displacement, rotating component includes pipe one, pipe two and pipe three which are equipped on two end pipes respectively, two pipe twos are equipped with bearing between, two pipe ones and two pipe threes are equipped with mechanical seal respectively.

[0008] Preferably, a plurality of ear plates one are arranged on the adjacent two flanges respectively, one of the ear plates one is provided with an arc-shaped long slot, and a connecting rod one is connected between the two ear plates one.

[0009] Preferably, a plurality of ear plates two are arranged on the flange, and a connecting rod two is arranged between the two ear plates two on the same bellows.

[0010] Preferably, the pipe one and the pipe three are located on the inner and outer sides of the pipe two respectively.

[0011] Preferably, the ear plate one and the ear plate two are arranged in a staggered mode.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. In the utility model, the pipe two is arranged between the two bellows, and the two pipe twos are connected through the bearing, so that the two bellows can rotate, which can provide space for the angular displacement of the guide pipe and compensate the angular displacement of the guide pipe.

[0014] 2. In the utility model, the ear plate one and the connecting rod one are arranged, one of the ear plates one is provided with a long slot, and the connecting rod one can move in the long slot, which can limit the angular displacement between the two bellows and prevent the displacement from exceeding the allowable compensation amount. DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model.

[0016] Figure 2 It is the left side perspective sectional view of the utility model.

[0017] Figure 3 It is the utility model Figure 2 The enlarged view of A.

[0018] In the drawing: 1, bellows; 2, end pipe; 3, flange; 4, pipe one; 5, pipe two; 6, pipe three; 7, bearing; 8, mechanical seal; 9, ear plate one; 10, connecting rod one; 11, ear plate two; 12, connecting rod two; 13, long slot. CONCRETE IMPLEMENTATION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0020] All the electronic components in the application are controlled by an external controller.

[0021] Embodiment one

[0022] Please refer to Figures 1-3 The utility model provides a compound free type compensator, including two can be combined together bellows 1, two ends of bellows 1 are equipped with end pipe 2 respectively, the outside of end pipe 2 is equipped with flange 3, the opposite two end pipe 2 between be equipped with the rotating assembly for compensating angular displacement, rotating assembly includes respectively in two end pipe 2 on pipe one 4, pipe two 5 and pipe three 6, two pipe two 5 between be equipped with bearing 7, two pipe one 4 between, two pipe three 6 between be equipped with mechanical seal 8 respectively;Pipe one 4 and pipe three 6 are located in the inside and outside both sides of pipe two 5 respectively;Ear plate one 9 and ear plate two 11 are misaligned and set up.

[0023] Bellows 1 is the expansion joint used by the existing compensator, end pipe 2 is welded in two ends of bellows 1, flange 3 is fixedly connected on end pipe 2, can conveniently install this compensator, rotating assembly is located in the opposite side of two bellows 1, pipe one 4, pipe two 5, pipe three 6 are two respectively, two pipe one 4, two pipe two 5, two pipe three 6 are welded in end pipe 2 from outside to inside in turn, two pipe two 5 are connected through bearing 7 between, can make two bellows 1 between relative rotation, so that bearing 7 can make two bellows 1 produce rotation when the angular displacement of the guide pipe, avoid the breakage of bellows 1, mechanical seal 8 can be directly purchased from the market, mechanical seal 8 is located between two pipe one 4, two pipe three 6 respectively, can avoid the fluid seepage inside through two mechanical seals 8, also can avoid the fluid outside to enter, and can protect bearing 7, avoid the corrosion of bearing 7.

[0024] Specifically, the two adjacent flanges 3 are respectively provided with a plurality of ear plates 9, one of the ear plates 9 is provided with an arc-shaped long slot 13, and the two ear plates 9 are connected by a connecting rod 10, the ear plate 9 is fixedly connected to the adjacent two flanges 3, the long slot 13 is arranged on one of the ear plates 9, the long slot 13 is coaxial with the corrugated pipe 1, the connecting rod 10 can be a screw rod, the connecting rod 10 is connected between the two ear plates 9 by a nut, the connecting rod 10 can rotate in the long slot 13 by a certain angle, and the angular displacement of the compensator can be limited to avoid exceeding the allowable compensation amount and to avoid the pipeline rotating all the time to cause unstable fixation.

[0025] Among them, the flange 3 is provided with a plurality of ear plates 11, and the two ear plates 11 on the same corrugated pipe 1 are provided with a connecting rod 12, the ear plate 11 is fixedly connected to the flange 3, and the connecting rod 12 is fixed between the two ear plates 11 on the same corrugated pipe 1, so that the compensator can be reinforced to prevent the compensation from exceeding the allowable range.

[0026] The contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0027] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A compound free type compensator, characterized in that: The invention comprises two bellows (1) that can be combined together, wherein both ends of the bellows (1) are respectively provided with end pipes (2), the outer sides of the end pipes (2) are provided with flanges (3), and a rotating assembly for compensating for angular displacement is provided between the two opposite end pipes (2); The rotating assembly comprises a tube 1 (4), a tube 2 (5) and a tube 3 (6) respectively arranged on the two end tubes (2); a bearing (7) is arranged between the two tubes 2 (5); and a mechanical seal (8) is respectively arranged between the two tubes 1 (4) and between the two tubes 3 (6).

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

3. A compound free-type compensator according to claim 2, characterized in that: A plurality of second ear plates (11) are provided on the flange (3), and a second connecting rod (12) is provided between two second ear plates (11) on the same bellows (1).

4. A compound free-type compensator according to claim 3, characterized in that: The pipe one (4) and the pipe three (6) are respectively located on the inner and outer sides of the pipe two (5).

5. The compound free-type compensator according to claim 4, characterized in that: The ear plate 1 (9) and the ear plate 2 (11) are arranged in a staggered manner.

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