Combined pipeline compensator capable of eliminating vibration stress

Abstract

The utility model discloses a combined type pipeline compensator capable of eliminating vibration stress, and particularly relates to the technical field of pipeline equipment, the combined type pipeline compensator comprises two compensator main bodies which are symmetrically combined and connected together, each compensator main body comprises a first flange plate which is attached and connected together, and a second flange plate which is attached to the first flange plate. The outer side wall of each first flange plate is fixedly connected with a fixing pipe, the edges of the outer side walls of the two fixing pipes are connected with corrugated pipes, and the ends of the corrugated pipes are connected with second flange plates used for being connected with an external pipe body. The pipeline compensator designed by the utility model adopts a combined structure and is formed by splicing and combining the two compensator main bodies, and the dustproof mechanism is arranged, so that the outer part of the screw rod is conveniently wrapped and protected during use, dust accumulation or corrosion caused by exposure in an external environment is reduced, and the service life is prolonged; and a strong axial supporting effect can be provided, the problem that the dislocation amplitude between the pipeline compensator and an external pipe body is too large is solved, and pipeline leakage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pipeline equipment technology, and more specifically, to a combined pipeline compensator that can eliminate vibration stress. Background Technology

[0002] Pipeline compensators, also known as expansion joints or expansion valves, are mainly used to compensate for the thermal expansion and contraction of pipelines caused by temperature changes. If the pipeline cannot expand or contract freely during temperature changes, thermal stress will be generated in the pipeline. This stress must be considered in pipeline design; otherwise, it may lead to pipeline rupture and affect normal production. As an important component of pipeline engineering, compensators play a vital role in ensuring the long-term normal operation of pipelines. Pipeline compensators can compensate for and absorb axial, lateral, and angular thermal deformation of pipelines. The expansion and contraction of the corrugated compensator facilitates the installation and disassembly of valves and pipelines, absorbs equipment vibration, reduces the impact of equipment vibration on pipelines, and absorbs the deformation of pipelines caused by earthquakes and ground subsidence.

[0003] A search revealed that Chinese patent CN217784567U discloses a pipeline compensator, which belongs to the field of pipeline equipment technology. It solves the technical problem that the corrugated pipe is prone to fatigue damage when stretched during the tensile connection of existing pipeline compensators. It is mainly used in pipeline compensation.

[0004] Although the above-mentioned pipe compensator design solves the technical problem that the bellows in the middle is prone to fatigue damage when subjected to tensile forces from both sides during the tension connection of the pipe compensator, its structural design is also prone to dust accumulation or corrosion in actual use, since most pipe compensators are installed in air-exposed environments. This affects the service life. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a combined pipeline compensator that can eliminate vibration stress.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined pipe compensator capable of eliminating vibration stress, comprising two compensator bodies symmetrically connected together. Each compensator body includes a first flange that is fitted together. A fixing pipe is fixedly connected to the outer wall of each first flange. Corrugated pipes are connected to the edges of the outer walls of the two fixing pipes. A second flange for connecting to an external pipe body is connected to the end of the corrugated pipe. Several adjusting mechanisms are connected between the outer edges of the first and second flanges on the two compensator bodies. Each adjusting mechanism is equipped with a dustproof mechanism. Several axial support mechanisms are connected between the inner walls of the first and second flanges on the two compensator bodies.

[0007] As a further improvement to the technical solution of this utility model, the first flanges of the two compensator bodies are fixedly connected by bolts.

[0008] As a further improvement to the technical solution of this utility model, the adjusting mechanism includes a first fixing plate fixedly connected to the outer wall of the first flange and a second fixing plate fixedly connected to the outer wall of the second flange. The second fixing plate and the first fixing plate are at the same horizontal position. A fixing column is fixedly connected to the outer wall of the first fixing plate on the side near the second fixing plate. A screw is fixedly provided at the end of the fixing column. One end of the screw passes through to the outside of the second fixing plate. Nuts are connected to both sides of the screw on the outside of the second fixing plate. A metal end ring is fixedly provided at the end of the fixing column outside the end of the screw.

[0009] As a further improvement to the technical solution of this utility model, the dustproof structure includes a first corrugated telescopic sleeve and a second corrugated telescopic sleeve. The first corrugated telescopic sleeve is installed between the end ring and the second fixed plate, and the first corrugated telescopic sleeve is sleeved on the outside of the screw. The second corrugated telescopic sleeve is installed on the outer side wall of the second fixed plate.

[0010] As a further improvement to the technical solution of this utility model, a first magnetic ring is fixedly provided at both ends of the first corrugated telescopic sleeve, and the two first magnetic rings are fixed to the end ring and the second fixing plate by magnetic adsorption.

[0011] As a further improvement to the technical solution of this utility model, a second magnetic ring is fixedly provided at both ends of the second corrugated telescopic sleeve. One of the second magnetic rings is magnetically attracted and fixed to the outer wall of the second fixed plate, and a metal blocking plate is magnetically embedded in the inner side of the end of the other second magnetic ring. The interior of the second magnetic ring is provided with a groove for the matching metal blocking plate.

[0012] As a further improvement to the technical solution of this utility model, the axial support mechanism includes a fixed cylinder fixedly connected to the outer wall of the first flange, a movable rod inserted into the inner side of the end of the fixed cylinder, a ball head fixedly provided at the end of the movable rod, a fixed seat for inserting the ball head fixedly installed on the inner wall of the second flange, a retaining seat for closing the ball head fixedly connected to the inner wall of the fixed seat, and a ball groove matching the spherical structure of the ball head provided inside the fixed seat.

[0013] The beneficial effects of this utility model are:

[0014] 1. The pipe compensator designed in this utility model adopts a combined structure, which is composed of two compensator bodies spliced ​​together. Each compensator body is equipped with a bellows for absorbing vibration stress. A dustproof mechanism is installed on the adjustment mechanism. The main body of the dustproof mechanism consists of a bellows expansion sleeve and a magnetic ring. The bellows expansion sleeve can be fitted onto the outside of the screw, while the magnetic ring can be used to adsorb and fix it on the second fixing plate and the end ring. In addition, the bellows expansion sleeve at the end of the screw end is sealed by embedding a metal plug plate to adsorb and close the opening. This facilitates quick installation and maintains stability. It is also convenient to wrap and protect the outside of the screw during use, reducing dust accumulation or corrosion caused by exposure to the external environment and extending the service life.

[0015] 2. By setting up an axial support mechanism, the length of the compensator body can be adjusted by the extension and retraction of the movable rod inside the fixed cylinder. The ball head is installed inside the fixed seat, which can provide a strong axial support effect when the pipeline is misaligned due to large vibration or ground subsidence during use, reducing the problem of excessive misalignment between the pipeline compensator and the external pipe body and avoiding pipeline leakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism in this utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure between the dustproof mechanism and the adjustment mechanism in this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the metal blocking plate and the second magnetic ring in this utility model.

[0020] Figure 5 This is a cross-sectional view of the connection between the ball head and the fixed base in this utility model.

[0021] The attached figures are labeled as follows: 1. First flange; 2. Fixed pipe; 3. Bellows; 4. Second flange; 5. First fixed plate; 6. Fixed column; 7. Screw; 8. Second fixed plate; 9. Nut; 10. End ring; 11. First bellows expansion sleeve; 12. First magnetic ring; 13. Second bellows expansion sleeve; 14. Second magnetic ring; 15. Metal blocking plate; 16. Movable rod; 17. Fixed seat; 18. Ball head; 19. Card seat; 20. Fixed cylinder; 141. Groove; 171. Ball groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As attached Figure 1-5 The diagram shows a combined pipe compensator capable of eliminating vibration stress, comprising two compensator bodies symmetrically connected together. Each compensator body includes a first flange 1 fitted together. A fixing pipe 2 is fixedly connected to the outer wall of each first flange 1. A bellows 3 is connected to the edge of the outer wall of each of the two fixing pipes 2. The end of the bellows 3 is connected to a second flange 4 for connection with an external pipe body. Several adjusting mechanisms are connected between the outer edges of the first flange 1 and the second flange 4 on the two compensator bodies. Each adjusting mechanism is equipped with a dustproof mechanism. Several axial support mechanisms are connected between the inner sides of the first flange 1 and the second flange 4 on the two compensator bodies.

[0024] As attached Figure 1 As shown, the first flange 1 of the two compensator bodies are fixedly connected by bolts, which facilitates the combination and splicing of the two compensator bodies and also facilitates disassembly.

[0025] As attached Figure 1-3 As shown, the adjustment mechanism includes a first fixing plate 5 fixedly connected to the outer wall of the first flange 1 and a second fixing plate 8 fixedly connected to the outer wall of the second flange 4. The second fixing plate 8 and the first fixing plate 5 are at the same horizontal position. A fixing column 6 is fixedly connected to the outer wall of the first fixing plate 5 on the side near the second fixing plate 8. A screw 7 is fixedly installed at the end of the fixing column 6. One end of the screw 7 passes through to the outside of the second fixing plate 8. Nuts 9 are connected to both sides of the screw 7 on the outside of the second fixing plate 8. A metal end ring 10 is fixedly installed at the end of the fixing column 6 outside the end of the screw 7. The adjustment mechanism facilitates the adjustment of the overall length of the combined pipe compensator to achieve a matching effect when the combined pipe compensator is connected to the two external pipe bodies.

[0026] As attached Figure 1 and attached Figure 3-4As shown, the dustproof structure includes a first corrugated telescopic sleeve 11 and a second corrugated telescopic sleeve 13. The first corrugated telescopic sleeve 11 is installed between the end ring 10 and the second fixing plate 8, and the first corrugated telescopic sleeve 11 is sleeved on the outside of the screw 7. The second corrugated telescopic sleeve 13 is installed on the outer side wall of the second fixing plate 8. A first magnetic ring 12 is fixedly provided at both ends of the first corrugated telescopic sleeve 11. The two first magnetic rings 12 are magnetically attracted and fixed to the end ring 10 and the second fixing plate 8. A second magnetic ring 14 is fixedly provided at both ends of the second corrugated telescopic sleeve 13. One of the second magnetic rings 14 is magnetically attracted and fixed to the outer side wall of the second fixing plate 8, and a metal blocking plate 15 is magnetically embedded in the inner side of the end of the other second magnetic ring 14. The interior of the second magnetic ring 14 is provided with a groove 141 for matching the placement of the metal blocking plate 15. The dustproof mechanism facilitates the wrapping and protection of the outside of the screw 7 during use, reducing dust accumulation or corrosion caused by exposure to the external environment and extending its service life.

[0027] As attached Figure 1 and attached Figure 5 As shown, the axial support mechanism includes a fixed cylinder 20 fixedly connected to the outer wall of the first flange 1. A movable rod 16 is inserted into the inner side of the end of the fixed cylinder 20. A ball head 18 is fixedly provided at the end of the movable rod 16. A fixed seat 17 for inserting the ball head 18 is fixedly installed on the inner wall of the second flange 4. A retaining seat 19 for sealing the ball head 18 is fixedly connected to the inner wall of the fixed seat 17. The fixed seat 17 is provided with a ball groove 171 that matches the spherical structure of the ball head 18. The axial support mechanism is designed to provide strong axial support when the pipeline is misaligned due to large vibrations during use, thus avoiding the problem of excessive misalignment between the pipeline compensator and the external pipe body.

[0028] Working principle: This utility model designs a combined pipe compensator that can eliminate vibration stress. The specific structure is shown in the attached instruction manual. Figure 1-5As shown, in this technical solution, the designed pipe compensator adopts a modular structure, consisting of two compensator bodies spliced ​​together. Each compensator body is equipped with a bellows 3 for absorbing vibration stress. Through the set adjustment mechanism, during use, by loosening the two nuts 9, the position of the adjusting screw 7 inside the second fixed plate 8 can be easily adjusted, thereby adjusting the overall length of the pipe compensator. This facilitates adjustment of the overall length of the combined pipe compensator when it is connected to two external pipe bodies to achieve a suitable fit. After adjustment, the two nuts 9 are screwed onto the two side walls that fit the second fixed plate 8. A dustproof mechanism is installed on each adjustment mechanism. The dustproof mechanism consists of a corrugated expansion sleeve and a magnetic ring. The corrugated expansion sleeve can be fitted over the outside of the screw 7, while the magnetic ring can be used to adsorb and fix it to the second fixed plate 8. On plate 8 and end ring 10, the corrugated expansion sleeve end of screw 7 is sealed with a metal plug plate 15 by embedding and adsorbing, which facilitates quick installation and stability. It also allows for external protection of screw 7 during use, reducing dust accumulation or corrosion caused by exposure to the external environment, extending service life, and facilitating quick disassembly to expose the screw 7 and nut 9 for adjustment during subsequent adjustments. By setting an axial support mechanism, the extension and retraction of movable rod 16 inside fixed cylinder 20 can adapt to the length adjustment of the compensator body. Ball head 18 is installed inside fixed seat 17, which can provide strong axial support when large vibrations or ground subsidence cause pipeline misalignment during use, reducing the problem of excessive misalignment between pipeline compensator and external pipe body, and avoiding pipeline leakage.

[0029] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined pipe compensator capable of eliminating vibration stress, characterized in that: The device comprises two symmetrically connected compensator bodies. Each compensator body includes a first flange (1) that is fitted together. A fixed pipe (2) is fixedly connected to the outer wall of each first flange (1). A bellows (3) is connected to the edge of the outer wall of each of the two fixed pipes (2). The end of the bellows (3) is connected to a second flange (4) for connection with an external pipe body. Several adjustment mechanisms are connected between the outer walls of the first flange (1) and the second flange (4) on the two compensator bodies. Each adjustment mechanism is equipped with a dustproof mechanism. Several axial support mechanisms are connected between the inner walls of the first flange (1) and the second flange (4) on the two compensator bodies.

2. The combined pipe compensator capable of eliminating vibration stress according to claim 1, characterized in that: The first flanges (1) of the two compensator bodies are fixedly connected by bolts.

3. The combined pipe compensator capable of eliminating vibration stress according to claim 1, characterized in that: The adjustment mechanism includes a first fixing plate (5) fixedly connected to the outer wall of the first flange (1) and a second fixing plate (8) fixedly connected to the outer wall of the second flange (4). The second fixing plate (8) and the first fixing plate (5) are at the same horizontal position. A fixing column (6) is fixedly connected to the outer wall of the first fixing plate (5) on the side near the second fixing plate (8). A screw (7) is fixedly provided at the end of the fixing column (6). One end of the screw (7) passes through to the outside of the second fixing plate (8). Nuts (9) are connected to both sides of the screw (7) on the outside of the second fixing plate (8). A metal end ring (10) is fixedly provided at the end of the fixing column (6) outside the end of the screw (7).

4. The combined pipe compensator capable of eliminating vibration stress according to claim 1, characterized in that: The dustproof mechanism includes a first corrugated telescopic sleeve (11) and a second corrugated telescopic sleeve (13). The first corrugated telescopic sleeve (11) is installed between the end ring (10) and the second fixed plate (8), and the first corrugated telescopic sleeve (11) is sleeved on the outside of the screw (7). The second corrugated telescopic sleeve (13) is installed on the outer side wall of the second fixed plate (8).

5. The combined pipe compensator capable of eliminating vibration stress according to claim 4, characterized in that: The first corrugated telescopic sleeve (11) is fixedly provided with a first magnetic ring (12) at both ends. The two first magnetic rings (12) are fixed to the end ring (10) and the second fixing plate (8) by magnetic adsorption.

6. The combined pipe compensator capable of eliminating vibration stress according to claim 4, characterized in that: The second corrugated telescopic sleeve (13) is fixedly provided with a second magnetic ring (14) at both ends. One of the second magnetic rings (14) is magnetically attracted to the outer wall of the second fixed plate (8), and the other second magnetic ring (14) has a metal blocking plate (15) magnetically attracted to the inner side of its end. The second magnetic ring (14) has a groove (141) inside that matches the metal blocking plate (15).

7. The combined pipe compensator capable of eliminating vibration stress according to claim 1, characterized in that: The axial support mechanism includes a fixed cylinder (20) fixedly connected to the outer wall of the first flange (1). A movable rod (16) is inserted into the inner side of the end of the fixed cylinder (20). A ball head (18) is fixedly provided at the end of the movable rod (16). A fixed seat (17) for inserting the ball head (18) is fixedly installed on the inner wall of the second flange (4). A retaining seat (19) for closing the ball head (18) is fixedly connected to the inner wall of the fixed seat (17). A ball groove (171) matching the spherical structure of the ball head (18) is provided inside the fixed seat (17).

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