High-pressure-resistant self-sealing rotary compensator

Abstract

The utility model relates to the technical field of rotary compensators, and discloses a high-pressure-resistant self-sealing rotary compensator which structurally comprises an anti-explosion outer pipe, a high-pressure-resistant inner pipe and a connecting pipe, the high-pressure-resistant inner pipe is arranged in the anti-explosion outer pipe, and the connecting pipe is arranged between the anti-explosion outer pipe and the high-pressure-resistant inner pipe in a sleeved mode. The anti-explosion outer pipe and the high-pressure-resistant inner pipe are located on the same side, the connecting pipe is located on the other side, and a sealing ring is jointly sealed between the inner wall of the anti-explosion outer pipe and the surface of the high-pressure-resistant inner pipe. According to the high-pressure-resistant self-sealing rotary compensator, the joint of the inner pipe and the outer pipe of the compensator can be protected, the damage risk of the whole compensator is reduced, the use strength of the compensator is improved, and the service life of the compensator is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary compensator technical field, concretely is a kind of high-pressure self-sealing rotary compensator. BACKGROUND

[0002] Compensator is also called expansion joint or expansion joint, by the corrugated pipe and end pipe, support, flange, conduit and other accessories that constitute its working body, belong to a kind of compensation element, utilize the effective telescopic deformation of the corrugated pipe of its working body, to absorb the dimensional change of pipeline, conduit, container and other reasons such as thermal expansion and contraction, or compensate the axial, lateral and angular displacement of pipeline, conduit, container and other, also can be used for noise reduction and vibration reduction, widely used in modern industry.Heating, in order to prevent the deformation or damage of pipeline due to thermal elongation or temperature stress when heating pipeline, need to set compensator on pipeline, to compensate the thermal elongation of pipeline, thereby reducing the stress of pipe wall and the force acting on valve or support structure, as an important part of pipeline engineering, compensator plays an important role in ensuring the long-term normal operation of pipeline, high-pressure self-sealing rotary compensator is a new type of compensator in the aspect of thermal expansion compensation of heat pipe, widely used in some high-temperature high-pressure pipeline and temperature change frequently and need to prevent leakage of heat pipe network.

[0003] The existing high-pressure self-sealing rotary compensator is generally used in high-temperature high-pressure environment, however, the inner and outer pipe connection of the compensator is easy to be damaged by external force in high-pressure environment for a long time, so that the overall service life of the compensator is not long, and the compensator usually uses a set of springs for expansion, so that the compensator is directly damaged and cannot be used after the set of springs is damaged. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a kind of high-pressure self-sealing rotary compensator, solve the general high-temperature high-pressure environment used, however, the inner and outer pipe connection of the compensator is easy to be damaged by external force in high-pressure environment for a long time, so that the overall service life of the compensator is not long, and the compensator usually uses a set of springs for expansion, so that the compensator is directly damaged and cannot be used after the set of springs is damaged.

[0006] (II) Technical scheme

[0007] In order to realize the above object, the utility model discloses a kind of high-pressure self-sealing rotary compensators, including explosion-proof outer tube, high-pressure inner tube and connecting pipe, the high-pressure inner tube is arranged in the inside of explosion-proof outer tube, the connecting pipe is sleeved between explosion-proof outer tube and high-pressure inner tube, the explosion-proof outer tube and high-pressure inner tube are located at the same side, the connecting pipe is located at the other side, the inner wall of explosion-proof outer tube and the surface of high-pressure inner tube are collectively sealed with sealing ring, the surface of high-pressure inner tube and the inner wall of connecting pipe are collectively connected with sealing bearing, the outer surface of explosion-proof outer tube and the outer surface of connecting pipe are collectively provided with compensation mechanism, the outer surface of explosion-proof outer tube and the outer surface of connecting pipe are collectively provided with protection mechanism, the protection mechanism includes telescopic plate and sleeve plate, one side of telescopic plate is sleeved in the inside of sleeve plate, the setting of protection mechanism can play the role of protection to the connecting portion of compensator, so as to prolong the service life of compensator, and by the setting of multiple compensation mechanisms, when a group of compensation mechanisms is damaged, other groups of compensation mechanisms are not affected to work, so as to reduce the risk of damage of entire compensator.

[0008] Preferably, the compensation mechanism and the protection mechanism are provided with multiple groups, and the protection mechanism is located on the inner side of the compensation mechanism.

[0009] Preferably, the protection mechanism further includes an elastic telescopic rod, which is fixedly connected between the telescopic plate and the connecting pipe and between the sleeve plate and the explosion-proof outer tube.

[0010] Preferably, the bottom of the telescopic plate is provided with a reinforcing groove, and the inner wall of the sleeve plate is fixedly connected with a reinforcing rib.

[0011] Preferably, the compensation mechanism includes a flange, which is fixedly connected to the outer surface of the explosion-proof outer tube and the outer surface of the connecting pipe.

[0012] Preferably, one of the flanges is threadedly connected with the threaded rod, the other flange is slidingly connected with the threaded rod, the outer side of the threaded rod is sleeved with a spring, and the spring is located on the side close to the flange slidingly connected with the threaded rod.

[0013] (Three) beneficial effects

[0014] The utility model provides a kind of high-pressure-resistant self-sealing rotary compensator.It has the following beneficial effects:

[0015] (I), the high-pressure-resistant self-sealing rotary compensator, the connecting place between the inner and outer pipes of the compensator can be protected by the expansion plate and the sleeve plate in the protection mechanism, preventing external forces from directly acting on the connecting place between the inner and outer pipes, providing good protection for the compensator. The overall strength of the protection mechanism can be improved by the provision of reinforcing grooves and reinforcing ribs in the protection mechanism, thereby better protecting the compensator and prolonging the service life of the compensator.

[0016] (II), the high-pressure-resistant self-sealing rotary compensator, with multiple sets of compensation mechanisms, if one set of compensation mechanism is damaged, it will not affect the operation of other sets of compensation mechanisms, thereby reducing the risk of damage to the entire compensator, maintaining the performance of the compensator and prolonging the service life of the compensator. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front view of the overall structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the protection mechanism of the utility model Figure 2 enlarged view of A;

[0020] Figure 4 It is a schematic diagram of the protection mechanism of the utility model;

[0021] Figure 5 It is a schematic diagram of the protection mechanism of the utility model Figure 4 enlarged view of B.

[0022] In the figure: 1, explosion-proof outer pipe; 2, high-pressure-resistant inner pipe; 3, connecting pipe; 4, sealing ring; 5, sealing bearing; 6, compensation mechanism; 61, flange; 62, threaded rod; 63, limit plate; 64, limit block; 65, spring; 7, protection mechanism; 71, expansion plate; 72, sleeve plate; 73, elastic expansion rod; 74, reinforcing groove; 75, reinforcing rib. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0024] Referring to Figures 1-5 The present application provides a technical solution: a high-pressure-resistant self-sealing rotary compensator, which comprises an explosion-proof outer pipe 1, a high-pressure-resistant inner pipe 2 and a connecting pipe 3. The high-pressure-resistant inner pipe 2 is arranged inside the explosion-proof outer pipe 1, the connecting pipe 3 is sleeved between the explosion-proof outer pipe 1 and the high-pressure-resistant inner pipe 2, the explosion-proof outer pipe 1 and the high-pressure-resistant inner pipe 2 are located on the same side, and the connecting pipe 3 is located on the other side. A sealing ring 4 is jointly sealed between the inner wall of the explosion-proof outer pipe 1 and the surface of the high-pressure-resistant inner pipe 2. A sealing bearing 5 is jointly connected in rotation between the surface of the high-pressure-resistant inner pipe 2 and the inner wall of the connecting pipe 3. A compensation mechanism 6 is jointly arranged between the outer surface of the explosion-proof outer pipe 1 and the outer surface of the connecting pipe 3. A protection mechanism 7 is jointly arranged between the outer surface of the explosion-proof outer pipe 1 and the outer surface of the connecting pipe 3. The protection mechanism 7 comprises an expansion plate 71 and a sleeve plate 72. One side of the expansion plate 71 is sleeved inside the sleeve plate 72. When the two sides of the compensator are extruded, the explosion-proof outer pipe 1 and the connecting pipe 3 approach each other, and the two flanges 61 on their surfaces approach each other. Consequently, one of the flanges 61 extrudes the spring 65. The spring 65 buffers the pipes on both sides of the compensator. The two ends of the threaded rod 62 are prevented from being separated from the flanges 61 by the limiting plate 63. The two flanges 61 are prevented from being too close to each other to extrude and damage the protection mechanism 7 or the compensator by the limiting block 64. The expansion plate 71 and the sleeve plate 72 can prevent external forces from directly acting on the connecting part of the explosion-proof outer pipe 1 and the connecting pipe 3, thereby prolonging the service life of the compensator. The strength of the expansion plate 71 and the sleeve plate 72 can be further improved by the reinforcing grooves 74 and the reinforcing ribs 75, thereby improving the protection performance of the protection mechanism 7. The explosion-proof outer pipe 1 and the high-pressure-resistant inner pipe 2 can be sealed by the sealing ring 4, and the high-pressure-resistant inner pipe 2 can rotate relative to the connecting pipe 3 by the sealing bearing 5.

[0025] The compensation mechanism 6 and the protection mechanism 7 are provided in multiple groups. The protection mechanism 7 is located on the inner side of the compensation mechanism 6. The multiple groups of the compensation mechanism and the protection mechanism 7 can improve the compensation effect of the compensator and the protection effect of the compensator.

[0026] The protection mechanism 7 further comprises elastic telescopic rods 73 fixedly connected between the telescopic plate 71 and the connecting pipe 3 and between the sleeve plate 72 and the explosion-proof outer pipe 1. The elastic telescopic rods 73 can provide a certain buffering effect when the compensator is subjected to external force, so that the external force is not directly applied to the connecting part of the compensator, thereby protecting the compensator.

[0027] The bottom of the telescopic plate 71 is provided with a reinforcing groove 74, and the inner wall of the sleeve plate 72 is fixedly connected with a reinforcing rib 75 which is slidingly connected in the reinforcing groove 74. The reinforcing groove 74 and the reinforcing rib 75 can respectively improve the strength of the telescopic plate 71 and the sleeve plate 72, thereby further improving the protection performance of the protection mechanism 7 and better protecting the surface of the compensator from being damaged.

[0028] The compensation mechanism 6 comprises flanges 61 fixedly connected to the outer surface of the explosion-proof outer pipe 1 and the outer surface of the connecting pipe 3. The two flanges 61 are provided with a threaded rod 62 therebetween. The two ends of the threaded rod 62 are fixedly connected with limiting plates 63, and the surface of the threaded rod 62 is fixedly connected with limiting blocks 64 located between the two flanges 61.

[0029] One of the flanges 61 is threadedly connected with the threaded rod 62, and the other flange 61 is slidingly connected with the threaded rod 62. The threaded rod 62 is sleeved with a spring 65 located on the side close to the flange 61 slidingly connected with the threaded rod 62. When the compensator is subjected to extrusion, the explosion-proof outer pipe 1 and the connecting pipe 3 are close to each other, and the two flanges 61 on their surfaces are also close to each other. Consequently, one of the flanges 61 extrudes the spring 65, and the spring 65 buffers the pipes on both sides of the compensator.

[0030] Working principle: when the high-pressure self-sealing rotary compensator works, when the two sides of the compensator are extruded, the explosion-proof outer tube 1 and the connecting pipe 3 are close to each other, and the two flanges 61 on their surfaces are close to each other, one of the flanges 61 will extrude the spring 65, the spring 65 will buffer the two sides of the compensator, and the limiting plate 63 will not make the two ends of the threaded rod 62 separate from the flange 61, the limiting block 64 will not make the two flanges 61 too close to extrude and damage the protection mechanism 7 or damage the compensator, the protection mechanism 7 can protect the connection between the explosion-proof outer tube 1 and the connecting pipe 3, the expansion plate 71 expands and contracts in the sleeve plate 72 at the same time, so as not to affect the normal function of the compensator, and through the protection of the expansion plate 71 and the sleeve plate 72, the external force can be prevented from directly acting on the connecting part of the explosion-proof outer tube 1 and the connecting pipe 3, the service life of the compensator is prolonged, and the strength of the expansion plate 71 and the sleeve plate 72 is further strengthened through the setting of the reinforcing groove 74 and the reinforcing rib 75, the protection performance of the protection mechanism 7 is improved.

[0031] It should be noted that the relative terms such as first and second, and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high pressure resistant self-sealing rotary compensator characterized by, The utility model provides an anti -explosion pipe, including explosion -proof outer tube (1), high pressure resistant inner tube (2) and connecting pipe (3), high pressure resistant inner tube (2) sets up in the inside of explosion -proof outer tube (1), connecting pipe (3) is set between explosion -proof outer tube (1) and high pressure resistant inner tube (2), explosion -proof outer tube (1) and high pressure resistant inner tube (2) are located the same side, connecting pipe (3) is located the other side, the inner wall of explosion -proof outer tube (1) and the surface of high pressure resistant inner tube (2) are sealed with sealing ring (4) between common, the surface of high pressure resistant inner tube (2) and the inner wall of connecting pipe (3) are rotatably connected with sealing bearing (5) between common, the outer surface of explosion -proof outer tube (1) and the outer surface of connecting pipe (3) are commonly provided with compensation mechanism (6), the outer surface of explosion -proof outer tube (1) and the outer surface of connecting pipe (3) are commonly provided with protection mechanism (7), protection mechanism (7) includes telescopic plate (71) and sleeve plate (72), one side of telescopic plate (71) is set in the inside of sleeve plate (72).

2. A high pressure resistant self-sealing rotary compensator according to claim 1, characterized in that: The compensation mechanism (6) and the protection mechanism (7) are provided with multiple groups, and the protection mechanism (7) is located on the inner side of the compensation mechanism (6).

3. A high pressure resistant self-sealing rotary compensator according to claim 1, characterized in that: The protection mechanism (7) further includes an elastic telescopic rod (73), which is fixedly connected between the telescopic plate (71) and the connecting pipe (3) and between the sleeve plate (72) and the explosion -proof outer tube (1).

4. A high pressure resistant self-sealing rotary union according to claim 1, wherein: The bottom of the telescopic plate (71) is provided with a reinforcing groove (74), and the inner wall of the sleeve plate (72) is fixedly connected with a reinforcing rib (75) which is slidingly connected in the inside of the reinforcing groove (74).

5. A high pressure resistant self-sealing rotary union according to claim 1, wherein: The compensation mechanism (6) includes a flange (61), which is fixedly connected to the outer surface of the explosion -proof outer tube (1) and the outer surface of the connecting pipe (3), two flanges (61) are provided with a threaded rod (62) between them, the two ends of the threaded rod (62) are fixedly connected with a limiting plate (63), the surface of the threaded rod (62) is fixedly connected with a limiting block (64), and the limiting block (64) is located between the two flanges (61).

6. A high pressure resistant self-sealing rotary union according to claim 5, wherein: One of the flanges (61) is threadedly connected with the threaded rod (62), and the other flange (61) is slidingly connected with the threaded rod (62), the outer side of the threaded rod (62) is sleeved with a spring (65), and the spring (65) is located on the side close to the flange (61) slidingly connected with the threaded rod (62).

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