High-temperature-resistant sealing metal corrugated compensator

Abstract

The utility model relates to a high-temperature-resistant sealing metal corrugated compensator which comprises a sealing sleeve, a pushing part, a first abutting block and a second abutting block, one end of the sealing sleeve is connected with an end pipe of the compensator, and the two ends of the sealing sleeve are tightly attached to the outer side wall of the end pipe of the compensator and the outer side wall of a pipeline respectively. The first abutting block and the second abutting block are both arranged in the sealing sleeve, the first abutting block and the second abutting block are oppositely arranged, a flange plate of a compensator and a flange plate of a pipeline are both located between the first abutting block and the second abutting block, and the pushing part is used for pushing the first abutting block and the second abutting block to be close to each other. Due to the adoption of the technical scheme, the possibility that when the high-temperature-resistant sealing metal corrugated compensator is used for carrying out displacement compensation on a pipeline, the contraction tension of the pipeline causes a gap to be formed in the position of a flange joint is reduced, so that the possibility that a medium in the pipeline overflows from the flange joint is reduced, and the environment is protected to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to xx technical field, concretely relates to a high temperature resistant sealed metal bellows compensator. BACKGROUND

[0002] The bellows compensator is composed of a metal bellows pipe body, an end pipe, a flange plate and a pull rod, and utilizes effective expansion and deformation of the bellows pipe to absorb size changes of pipelines, conduits, containers and the like caused by thermal expansion and cold contraction and the like, or compensate axial, lateral and angular displacements of the pipelines, conduits, containers and the like.

[0003] The high temperature resistant sealed metal bellows compensator is widely used in petroleum chemical industry, metallurgy, energy, aerospace and building materials fields due to its high temperature resistance, pressure resistance and reliable sealing characteristics, and the core value of the high temperature resistant sealed metal bellows compensator lies in solving the pipeline deformation and leakage problems under high temperature, high pressure and corrosive working conditions through high temperature resistant materials (such as stainless steel coating and ceramic fiber), multidirectional compensation design and reliable sealing structure.

[0004] However, the sealing ring at the connection between the flange plate of the compensator and the flange plate of the pipeline is subjected to the corrosive medium and high pressure and high temperature working environment for a long time, and is easily corroded by the corrosive medium, and when the pipeline is contracted to stretch the compensator, the flange plates of the compensator and the pipeline are subjected to the pulling force away from each other, so that the gap is easily generated at the flange joint, and at this time, the leakage is easily generated at the flange joint due to the corrosion of the sealing ring, and the environment is polluted to a certain extent. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a high temperature resistant sealed metal bellows compensator to solve the problem that when the pipeline is contracted to stretch the compensator, the flange plates of the compensator and the pipeline are subjected to the pulling force away from each other, so that the gap is easily generated at the flange joint, and at this time, the leakage is easily generated at the flange joint due to the corrosion of the sealing ring, and the environment is polluted to a certain extent.

[0006] The utility model realizes the following technical scheme:

[0007] The application discloses a high-temperature-resistant sealed metal bellows compensator which comprises a sealing sleeve, a pushing part, a first abutting block and a second abutting block, one end of the sealing sleeve is connected with an end pipe of the compensator, the outer side walls of the end pipe of the compensator and a pipeline are tightly combined with the two ends of the sealing sleeve, the first abutting block and the second abutting block are arranged in the sealing sleeve, the first abutting block and the second abutting block are oppositely arranged, the flanges of the compensator and the pipeline are located between the first abutting block and the second abutting block, and the pushing part is used for pushing the first abutting block and the second abutting block to be close to each other.

[0008] Further, the sealing sleeve comprises a first shell, a second shell and a sealing gasket, the first shell and the second shell are closed to form a ring shape, one end of the first shell is connected with the outer side wall of the end pipe of the compensator, the upper end of the first shell is protruded to form a protruding part, the lower end of the second shell is recessed to form a groove, the sealing gasket is arranged in the groove, and the protruding part is matched with the groove.

[0009] Further, the application further comprises a locking part, the locking part comprises a first connecting block, a second connecting block, a bolt and a nut, the first connecting block is connected with the upper end of the first shell, the second connecting block is connected with the lower end of the second shell, the positions of the first connecting block and the second connecting block are corresponding, the first connecting block is provided with a first through hole, the second connecting block is provided with a second through hole, and the bolt is screwed with the nut through the first through hole and the second through hole.

[0010] Further, the pushing part comprises a support plate and a connecting rod, the support plate is provided with a third through hole along the length direction of the pipeline, the first abutting block and the second abutting block are arranged between the two support plates, the first abutting block is formed with a first screw hole, the second abutting block is formed with a second screw hole, the first screw hole and the second screw hole are oppositely arranged along the length direction of the pipeline, the rotation directions of the first screw hole and the second screw hole are opposite, the two ends of the connecting rod are formed with external threads, the rotation directions of the two external threads are opposite, the connecting rod passes through the two third through holes in sequence, and the two external threads are screwed into the first screw hole and the second screw hole one by one.

[0011] Further, the two ends of the connecting rod are connected with limiting blocks, and the two support plates are located between the two limiting blocks.

[0012] Further, the limiting block is hexagonal in section.

[0013] Furthermore, the lower sidewall of the sealing sleeve has an opening that connects the outer sidewall and the inner sidewall of the sealing sleeve; the sealing sleeve also includes a transparent glass cover and a transparent detection box, the transparent glass cover is fitted to the opening, the transparent detection box is located inside the transparent glass cover, and the transparent detection box contains a detection solution.

[0014] Furthermore, the transparent detection box includes a box body and a cover body, the cover body is detachably connected to the box body, the cover body is provided with a fourth through hole, and the box body is used to place the detection solution.

[0015] The beneficial effects of this utility model are as follows:

[0016] This high-temperature resistant sealed metal bellows compensator, after being connected to a pipeline, can fix and seal the flange interface, reducing the possibility of gaps appearing at the flange interface due to pipeline contraction tension when compensating for pipeline displacement. This reduces the possibility of the medium inside the pipeline overflowing from the flange interface, thus protecting the environment to a certain extent.

[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a high-temperature resistant sealed metal bellows compensator according to the present invention;

[0019] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0020] Figure 3 This is a schematic diagram of the transparent detection box of this utility model.

[0021] In the diagram: 1. Sealing sleeve; 11. First housing; 111. Protrusion; 12. Second housing; 121. Groove; 13. Sealing gasket; 2. Pushing part; 21. Support plate; 22. Connecting rod; 23. External thread; 24. Third through hole; 25. Limiting block; 31. First abutment block; 32. Second abutment block; 4. Locking part; 41. First connecting block; 42. Second connecting block; 43. Bolt; 44. Nut; 45. First through hole; 46. Second through hole; 5. Transparent glass cover; 6. Transparent detection box; 61. Cover; 62. Box body; 63. Fourth through hole; 71. End tube of compensator; 72. Pipeline; DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0023] Please refer to Figures 1-2 The utility model provides a technical scheme: a kind of high temperature resistant sealing metal bellows compensator, including sealing sleeve 1, push part 2, first resistance block 31 and second resistance block 32, one end of the sealing sleeve 1 is connected with the end pipe 71 of compensator, the outer lateral wall of the end pipe 71 of compensator and the outer lateral wall of pipeline 72 are tightly adhered with two ends of the sealing sleeve 1 respectively, the first resistance block 31 and second resistance block 32 are all arranged in the sealing sleeve 1, the first resistance block 31 and second resistance block 32 are oppositely arranged, the flange plate of compensator and the flange plate of pipeline 72 are all located between the first resistance block 31 and second resistance block 32, and the push part 2 is used to push the first resistance block 31 and second resistance block 32 to be close to each other.

[0024] When the high temperature resistant sealing metal bellows compensator of the utility model is used to seal and compensate displacement of pipeline 72, first, the flange plate on the high temperature resistant sealing metal bellows compensator of the utility model is connected with the flange plate on pipeline 72, so that the high temperature resistant sealing metal bellows compensator of the utility model is connected with pipeline 72, since one end of the sealing sleeve 1 is connected with the end pipe 71 of compensator, at this time, the mounting sleeve is mounted on the flange plate of the high temperature resistant sealing metal bellows compensator of the utility model and the flange plate of pipeline 72, and the position of the flange joint in the following description is the position of the connection of the flange plate on the high temperature resistant sealing metal bellows compensator of the utility model and the flange plate of pipeline 72.

[0025] Since the outer lateral wall of the end pipe 71 of compensator and the outer lateral wall of pipeline 72 are tightly adhered with two ends of the sealing sleeve 1 respectively, the sealing sleeve 1 can seal the position of the flange joint, and in this structure, when the flange joint leaks, the speed of the medium fluid leaking outward from the flange joint can be slowed down; since the flange plate of compensator and the flange plate of pipeline 72 are all located between the first resistance block 31 and second resistance block 32, by pushing the first resistance block 31 and second resistance block 32 to be close to each other through the push part 2, the flange plate of compensator and the flange plate of pipeline 72 can still be in the state of being close to each other when being stretched, so that the possibility of the flange plate of compensator and the flange plate of pipeline 72 being cracked due to the pulling force of being far away from each other is reduced.

[0026] With the structure, the high-temperature-resistant sealed metal corrugated compensator can be fixed and sealed at the flange interface after being connected with the pipeline 72, the possibility of the gap at the flange street position caused by the shrinkage tension of the pipeline 72 during displacement compensation of the high-temperature-resistant sealed metal corrugated compensator is reduced, the possibility of the medium in the pipeline 72 overflowing from the flange interface is reduced, and the environment is protected to a certain extent.

[0027] In the embodiment, the sealing sleeve 1 comprises a first shell 11, a second shell 12 and a sealing gasket 13, the first shell 11 and the second shell 12 are closed to form a ring shape, one end of the first shell 11 is connected to the outer side wall of the end pipe 71 of the compensator, the upper end of the first shell 11 is protruded upward to form a protruding part 111, the lower end of the second shell 12 is recessed downward to form a groove 121, the sealing gasket 13 is arranged in the groove 121, and the protruding part 111 is matched with the groove 121.

[0028] When the high-temperature-resistant sealed metal corrugated compensator is used to seal and compensate the displacement of the pipeline 72, the second shell 12 is removed, the sealing sleeve 1 is in an open state, then the high-temperature-resistant sealed metal corrugated compensator is moved to the position of the pipeline 72, the flange plate of the high-temperature-resistant sealed metal corrugated compensator is connected with the flange plate of the pipeline 72, one end of the first shell 11 is connected to the outer side wall of the end pipe 71 of the compensator, so that the first shell 11 is located at the flange interface position, after the high-temperature-resistant sealed metal corrugated compensator and the pipeline 72 are connected, the second shell 12 is buckled on the first shell 11, the second shell 12 is closed with the first shell 11, a closed cavity is formed in the first shell 11 and the second shell 12, the upper end of the first shell 11 is protruded upward to form the protruding part 111, the lower end of the second shell 12 is recessed downward to form the groove 121, the sealing gasket 13 is arranged in the groove 121, the protruding part 111 is matched with the groove 121, and the sealing sleeve 1 can realize sealing after the first shell 11 and the second shell 12 are closed.

[0029] In the embodiment, the first shell 11 and the second shell 12 are provided with sealing strips at the connecting positions of the compensator end pipe and the pipeline 72.

[0030] In the embodiment, the locking portion 4 comprises a first connecting block 41, a second connecting block 42, a bolt 43 and a nut 44. The first connecting block 41 is connected to the upper end of the first shell 11, and the second connecting block 42 is connected to the lower end of the second shell 12. The first connecting block 41 and the second connecting block 42 correspond in position. The first connecting block 41 is provided with a first through hole 45, and the second connecting block 42 is provided with a second through hole 46. The bolt 43 passes through the first through hole 45 and the second through hole 46 and is screwed with the nut 44. In this structure, the locking portion 4 can be used to lock the position of the second shell 12 in the closed state of the first shell 11 and the second shell 12, which to some extent reduces the possibility of displacement of the second shell 12 during use, thereby reducing the sealing ability of the sealing sleeve 1.

[0031] Specifically, the locking portion 4 can be multiple.

[0032] In the embodiment, the pushing portion 2 comprises a support plate 21 and a connecting rod 22. The support plate 21 is two, and each of the two support plates 21 is provided with a third through hole 24 along the length direction of the pipeline 72. The first abutting block 31 and the second abutting block 32 are arranged between the two support plates 21. The first abutting block 31 is formed with a first screw hole, and the second abutting block 32 is formed with a second screw hole. The first screw hole and the second screw hole are oppositely arranged along the length direction of the pipeline 72. The first screw hole and the second screw hole are opposite in rotation direction. The connecting rod 22 is formed with external threads 23 at both ends. The rotation directions of the two external threads 23 are opposite. The connecting rod 22 passes through the two third through holes 24 in sequence, and the two external threads 23 are screwed into the first screw hole and the second screw hole one by one. In this structure, the pushing portion 2 can be used to push the first abutting block 31 and the second abutting block 32 to move closer to each other.

[0033] The connecting rod 22 is rotated to move the first abutting block 31 and the second abutting block 32 away from each other. After the flange joint is placed between the first abutting block 31 and the second abutting block 32, the connecting rod 22 is rotated in the opposite direction to move the first abutting block 31 and the second abutting block 32 closer to each other, so that the first abutting block 31 and the second abutting block 32 can clamp the flange joint. In this structure, the pushing portion 2 can be used to push flanges of different sizes.

[0034] In the embodiment, the connecting rod 22 is connected to a limiting block 25 at both ends, and the two support plates 21 are located between the two limiting blocks 25. In this structure, the connecting rod 22 is not easy to be separated from the two support plates 21 during rotation.

[0035] In the embodiment, the limiting block 25 is hexagonal in cross section, so that the limiting block 25 can be rotated by using a wrench when the connecting rod 22 needs to be rotated, and the connecting rod 22 is conveniently rotated.

[0036] In the embodiment, the lower side wall of the sealing sleeve 1 is provided with an opening penetrating through the lower side wall, the opening being communicated with the outer side wall and the inner side wall of the sealing sleeve 1; the sealing sleeve 1 further comprises a transparent glass cover 5 and a transparent detection box 6, the transparent glass cover 5 is connected to the opening in a matched manner, and the transparent detection box 6 is located in the transparent glass cover 5 and contains a detection solution.

[0037] When the flange joint leaks, the medium leaks into the sealing sleeve 1 and contacts the transparent detection box 6, so that the detection solution in the transparent detection box 6 changes color, and in this way, whether the flange joint leaks can be determined by observing whether the detection solution in the transparent detection box 6 changes color through the transparent glass cover 5.

[0038] Specifically, the transparent glass cover 5 and the transparent detection box 6 are made of high-temperature-resistant glass.

[0039] In the embodiment, the transparent detection box 6 comprises a box body 62 and a cover body 61, the cover body 61 is detachably connected to the box body 62, the cover body 61 is provided with a fourth through hole 63, the box body 62 contains the detection solution, and the transparent detection box 6 is placed at the bottom of the sealing sleeve 1; if the medium is a gas, the gas can spread in the sealing sleeve 1 after the flange joint leaks and then enter the detection box through the fourth through hole 63; if the medium is a liquid, the leaked liquid can drip from the lower part of the flange joint and finally drip on the cover body 61 and then enter the detection solution through the fourth through hole 63, so that the leaked medium can react with the detection solution in the box body 62.

[0040] Specifically, the detection solution can be selected according to the medium and loaded into the box body 62.

[0041] In the embodiment, the lower outer side surface of the cover body 61 is provided with an external thread 23, the inner wall of the box body 62 is provided with an internal thread, and the external thread 23 is matched with the internal thread, so that the cover body 61 can be detachably connected to the box body 62.

[0042] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A high temperature resistant sealed metal bellows compensator characterized by: The utility model provides a sealing sleeve (1), push part (2), first bearing block (31) and second bearing block (32), one end of sealing sleeve (1) is connected with the end pipe (71) of compensator, and the both ends of sealing sleeve (1) are tightly fitted with the outside wall of end pipe (71) and pipeline (72) outside wall of compensator respectively, and first bearing block (31) and second bearing block (32) are all arranged in sealing sleeve (1), and first bearing block (31) and second bearing block (32) are oppositely arranged, and the flange plate of compensator and the flange plate of pipeline (72) are located between first bearing block (31) and second bearing block (32), and push part (2) is used to push first bearing block (31) and second bearing block (32) to each other.

2. A high temperature resistant sealed metal bellows compensator according to claim 1, characterized in that: The sealing sleeve (1) comprises a first shell (11), a second shell (12) and a sealing gasket (13), the first shell (11) and the second shell (12) are closed in a ring shape, one end of the first shell (11) is connected with the outer side wall of the end pipe (71) of the compensator, the upper end of the first shell (11) is protruded upward to form a protruding portion (111), the lower end of the second shell (12) is recessed downward to form a recess (121), and the sealing gasket (13) is arranged in the recess (121), and the protruding portion (111) is matched with the recess (121).

3. A high temperature resistant sealed metal bellows compensator according to claim 2, characterized in that: The utility model also comprises a locking part (4), the locking part (4) comprises a first connecting block (41), a second connecting block (42), a bolt (43) and a nut (44), the first connecting block (41) is connected with the upper end of the first shell (11), the second connecting block (42) is connected with the lower end of the second shell (12), the positions of the first connecting block (41) and the second connecting block (42) correspond to each other, the first connecting block (41) is provided with a first through hole (45), the second connecting block (42) is provided with a second through hole (46), and the bolt (43) is screwed with the nut (44) through the first through hole (45) and the second through hole (46).

4. The high temperature resistant sealed metal bellows compensator of claim 1, wherein: The push part (2) comprises a support plate (21) and a connecting rod (22), the support plate (21) is provided with a third through hole (24) along the length direction of the pipeline (72), the first bearing block (31) and the second bearing block (32) are arranged between the two support plates (21), the first bearing block (31) is provided with a first screw hole, the second bearing block (32) is provided with a second screw hole, the first screw hole and the second screw hole are oppositely arranged along the length direction of the pipeline (72), the rotation directions of the first screw hole and the second screw hole are opposite, the connecting rod (22) is provided with an external thread (23) at both ends, the rotation directions of the two external threads (23) are opposite, and the connecting rod (22) passes through the two third through holes (24) in sequence, and the two external threads (23) are screwed into the first screw hole and the second screw hole one by one.

5. A high temperature resistant sealed metal bellows compensator according to claim 4, characterized in that: Two ends of the connecting rod (22) are connected with limiting blocks (25), and the two supporting plates (21) are located between the two limiting blocks (25).

6. A high temperature resistant sealed metal bellows compensator according to claim 5, characterized in that: The limiting block (25) is hexagonal in cross section.

7. The high temperature resistant sealed metallic corrugated compensator of claim 1, wherein: An opening is formed through a lower side wall of the sealing sleeve (1), and the opening communicates with an outer side wall and an inner side wall of the sealing sleeve (1); the sealing sleeve (1) further comprises a transparent glass cover (5) and a transparent detection box (6), the transparent glass cover (5) is connected to the opening in a matched mode, and the transparent detection box (6) is located in the transparent glass cover (5) and contains a detection solution.

8. A high temperature resistant sealed metallic corrugated compensator according to claim 7, characterized in that: The transparent detection box (6) comprises a box body (62) and a cover body (61), the cover body (61) is detachably connected to the box body (62), the cover body (61) is provided with a fourth through hole (63), and the box body (62) is used for placing the detection solution.

Images