CN211875396U

CN211875396U - Explosion-proof high pressure resistant rotary compensator

Info

Publication number: CN211875396U
Application number: CN202020056597.2U
Authority: CN
Inventors: 姜爱荣
Original assignee: Jiangsu Changfeng Bellows Co ltd
Current assignee: Jiangsu Changfeng Bellows Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-11-06
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses an explosion-proof high pressure resistant rotary compensator relates to compensator technical field, only at the explosion-proof pressure resistance of connection terminal surface reinforcing usually for solving current rotary compensator, causes compensator body resistance to pressure not good, takes place ruptured problem easily. The utility model discloses a bearing, including rotatory barrel, be provided with inner ripple structure on the inner wall of rotatory barrel, be provided with outer ripple structure on the outer wall of rotatory barrel, the outside of rotatory barrel is provided with the end pipe, one side of end pipe is provided with sealing gland, the junction of rotatory barrel and end pipe is provided with the bearing holding ring, and bearing holding ring and rotatory barrel structure as an organic whole, first antifriction centering bearing is installed to one side of bearing holding ring, one side of first antifriction centering bearing is provided with the seal receptacle, and seal receptacle and end pipe structure as an organic whole, one side of seal receptacle is provided with the draw-in groove, the internally mounted of draw-in groove has high temperature high pressure seal circle.

Description

Explosion-proof high pressure resistant rotary compensator

Technical Field

The utility model relates to a compensator technical field specifically is an explosion-proof high pressure resistant rotary compensator.

Background

The pipe compensator is also called as a telescopic device or a telescopic joint or an expansion joint and is mainly used for compensating expansion and contraction caused by temperature change of a pipe. Thermal stresses will develop in the pipe if the pipe is not fully free to expand or contract when the temperature changes. This stress must be taken into account in the pipe design, otherwise it may lead to cracking of the pipe, affecting the normal production run. As an important component of pipeline engineering, the compensator plays an important role in ensuring long-term normal operation of the pipeline. The pipeline compensator is divided into a plurality of categories such as a metal corrugated compensator, a nonmetal compensator, a sleeve compensator, a square compensator and the like. The metal corrugated compensator and the nonmetal compensator are common in use.

However, the existing rotary compensator usually only enhances the explosion-proof pressure-resistant performance at the connecting end face, so that the pressure resistance of the compensator body is poor and the compensator body is easy to break; therefore, the existing requirements are not met, and an explosion-proof high-pressure-resistant rotary compensator is provided for the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof high pressure resistant rotary compensator to solve the current rotary compensator that proposes in the above-mentioned background art and only strengthen explosion-proof pressure resistance in the connection terminal surface usually, cause compensator body resistance to pressure not good, take place ruptured problem easily.

In order to achieve the above object, the utility model provides a following technical scheme: an explosion-proof high-pressure-resistant rotary compensator comprises a rotary barrel body, wherein an inner corrugated structure is arranged on the inner wall of the rotary barrel body, an outer corrugated structure is arranged on the outer wall of the rotary barrel body, a butt pipe is arranged outside the rotary barrel body, a sealing gland is arranged on one side of the butt pipe, a bearing positioning ring is arranged at the joint of the rotary barrel body and the butt pipe and is integrated with the rotary barrel body, a first antifriction centering bearing is arranged on one side of the bearing positioning ring, a sealing seat is arranged on one side of the first antifriction centering bearing and is integrated with the butt pipe, a clamping groove is arranged on one side of the sealing seat, a high-temperature high-pressure sealing ring is arranged inside the clamping groove, a bearing positioning groove is arranged at the joint of the rotary barrel body and the sealing gland and is integrated with the sealing gland, and a second antifriction centering bearing is arranged in the bearing positioning groove.

Preferably, the outer corrugated structure is provided with a PVC flame-retardant protective sleeve outside, and the PVC flame-retardant protective sleeve is fixedly connected with the outer corrugated structure.

Preferably, the inner wall and the outer wall of the high-temperature and high-pressure sealing ring are both provided with fluororubber layers, and an annular spring is arranged between the fluororubber layers.

Preferably, ball retainers are arranged inside the first antifriction centering bearing and the second antifriction centering bearing, balls are arranged inside the ball retainers, and the balls are provided with a plurality of balls.

Preferably, the end connecting pipe is in threaded connection with the sealing gland through a compression bolt, and a nut is installed at the joint of the compression bolt and the sealing gland.

Preferably, one side of the high-temperature and high-pressure sealing ring is provided with a sealing filler.

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

1. the utility model discloses an all set up the ripple structure on the outer wall of rotatory barrel and inner wall, the elasticity is good, has better resistance to pressure, has added the fire retardant in the PVC fire-retardant protective sheath of its outer wall, has good flame retardant efficiency, does not play the naked light, can effectively improve the explosion-proof compressive property of rotatory barrel, makes the surface be difficult for breaking, and can fill the ripple on rotatory barrel surface, makes it level and more smooth, easy to assemble end pipe and gland.

2. The high-temperature high-pressure sealing ring is arranged on the connecting end face of the compensator and consists of the fluororubber layer and the annular spring, the fluororubber layer has good heat resistance and can adapt to a high-temperature high-pressure conveying environment, the annular spring inside the fluororubber layer is made of high-temperature resistant materials, and the explosion-proof pressure-resistant performance of the sealing end face can be further enhanced by means of elasticity of the annular spring.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the antifriction and centering bearing of the present invention;

fig. 3 is a schematic view of the external structure of the rotary cylinder of the present invention;

fig. 4 is a schematic view of a partial structure of the high-temperature high-pressure seal ring of the present invention;

in the figure: 1. rotating the cylinder; 2. an internal corrugation structure; 3. a PVC flame-retardant protective sleeve; 4. end connecting pipes; 5. a sealing gland; 6. a hold-down bolt; 7. a nut; 8. a bearing positioning ring; 9. a first antifriction centering bearing; 10. a sealing seat; 11. a card slot; 12. a high-temperature high-pressure sealing ring; 121. a fluororubber layer; 122. an annular spring; 13. sealing and filling; 14. a bearing positioning groove; 15. a second antifriction centering bearing; 16. a ball retainer; 17. a ball bearing; 18. an outer corrugation structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, the present invention provides an embodiment: an explosion-proof high-pressure-resistant rotary compensator comprises a rotary cylinder body 1, wherein an inner corrugated structure 2 is arranged on the inner wall of the rotary cylinder body 1, an outer corrugated structure 18 is arranged on the outer wall of the rotary cylinder body 1, a butt pipe 4 is arranged outside the rotary cylinder body 1, a sealing gland 5 is arranged on one side of the butt pipe 4, a bearing positioning ring 8 is arranged at the joint of the rotary cylinder body 1 and the butt pipe 4, the bearing positioning ring 8 and the rotary cylinder body 1 are of an integral structure, a first antifriction centering bearing 9 is arranged on one side of the bearing positioning ring 8, a sealing seat 10 is arranged on one side of the first antifriction centering bearing 9, the sealing seat 10 and the butt pipe 4 are of an integral structure, a clamping groove 11 is arranged on one side of the sealing seat 10, a high-temperature high-pressure sealing ring 12 is arranged inside the clamping groove 11, a bearing positioning groove 14 is arranged at the joint of the rotary cylinder body 1 and the sealing gland, inside the bearing positioning slot 14 is mounted a second wear-reducing centering bearing 15.

Further, the outside of outer ripple structure 18 is provided with the fire-retardant protective sheath of PVC 3, and the fire-retardant protective sheath of PVC 3 and the outer ripple structure 18 fixed connection, and the ripple structure on rotatory barrel 1 surface can be filled to the fire-retardant protective sheath of PVC 3, makes it more level and more smooth, and the easy to assemble end pipe 4 and gland 5 add in the protective sheath and have the fire retardant, has good flame retardant efficiency, does not play the naked light, and can effectively improve the explosion-proof compressive property of rotatory barrel 1.

Further, the inner wall and the outer wall of the high-temperature and high-pressure sealing ring 12 are both provided with a fluororubber layer 121, an annular spring 122 is installed between the fluororubber layers 121, the fluororubber layers 121 have good heat resistance and can adapt to a high-temperature and high-pressure conveying environment, and the annular spring 122 inside the fluororubber layers is also made of a high-temperature resistant material, so that the explosion-proof and pressure-resistant performance of the sealing end face can be enhanced.

Further, the first antifriction centering bearing 9 and the second antifriction centering bearing 15 are internally provided with the ball retainer 16, the ball 17 is arranged in the ball retainer 16, the ball 17 is provided with a plurality of balls, the antifriction centering bearings can depend on the rolling of the balls 17, the abrasion of the sealing surface is reduced, and the service life is prolonged.

Further, the end connecting pipe 4 is in threaded connection with the sealing gland 5 through a compression bolt 6, a nut 7 is installed at the joint of the compression bolt 6 and the sealing gland 5, and the compression bolt is connected with the sealing gland through a bolt, so that the disassembly and the assembly are convenient.

Further, one side of the high-temperature and high-pressure sealing ring 12 is provided with a sealing filler 13, the sealing filler 13 is flexible graphite and is used for filling the position of the residual clamping groove 11, the high-temperature and high-pressure sealing ring 12 is compressed, the stability of the high-temperature and high-pressure sealing ring is guaranteed, and the flexible graphite has the characteristics of high temperature resistance, corrosion resistance and wear resistance.

The working principle is as follows: when in use, two ends of the compensator can be welded with the pipeline in a welding mode, usually two pipelines are required to be arranged on the pipeline, or more than two, so that the displacement is compensated by utilizing the angular displacement change generated by rotation, the corrugated structures are arranged on the outer wall and the inner wall of the rotary cylinder body 1, the flexibility is good, the pressure resistance is good, the PVC flame-retardant protective sleeve 3 is sleeved on the outer wall of the rotary drum body, the flame retardant is added in the PVC flame-retardant protective sleeve 3, the flame-retardant rotary drum body has good flame-retardant effect, open fire is not generated, the explosion-proof and pressure-resistant performance of the rotary drum body 1 can be effectively improved, the ripple on the surface of the rotary cylinder body 1 can be filled, so that the rotary cylinder body is smoother, the end connection pipe 4 and the sealing gland 5 are convenient to install, the end face part of the compensator is provided with the high-temperature high-pressure sealing ring 12, the high-temperature high-pressure sealing ring 12 is composed of the fluororubber layer 121 and the annular spring 122, and the explosion resistance and the pressure resistance of the connection end face can be further improved by means of the elasticity of the spring.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an explosion-proof high pressure resistant rotary compensator, includes rotatory barrel (1), its characterized in that: the inner wall of the rotary cylinder body (1) is provided with an inner corrugated structure (2), the outer wall of the rotary cylinder body (1) is provided with an outer corrugated structure (18), the outer portion of the rotary cylinder body (1) is provided with a butt pipe (4), one side of the butt pipe (4) is provided with a sealing gland (5), a bearing positioning ring (8) is arranged at the joint of the rotary cylinder body (1) and the butt pipe (4), the bearing positioning ring (8) and the rotary cylinder body (1) are of an integral structure, one side of the bearing positioning ring (8) is provided with a first antifriction centering bearing (9), one side of the first antifriction centering bearing (9) is provided with a sealing seat (10), the sealing seat (10) and the butt pipe (4) are of an integral structure, one side of the sealing seat (10) is provided with a clamping groove (11), and the high-temperature and high-pressure sealing ring (12) is arranged inside the clamping groove (11), the rotary drum body (1) and the sealing gland (5) are connected through a bearing positioning groove (14), the bearing positioning groove (14) and the sealing gland (5) are of an integrated structure, and a second anti-friction centering bearing (15) is arranged inside the bearing positioning groove (14).

2. An explosion-proof high pressure resistant rotary compensator according to claim 1, characterized in that: the outside of outer ripple structure (18) is provided with the fire-retardant protective sheath of PVC (3), and the fire-retardant protective sheath of PVC (3) and outer ripple structure (18) fixed connection.

3. An explosion-proof high pressure resistant rotary compensator according to claim 1, characterized in that: the inner wall and the outer wall of the high-temperature and high-pressure sealing ring (12) are both provided with fluororubber layers (121), and an annular spring (122) is arranged between the fluororubber layers (121).

4. An explosion-proof high pressure resistant rotary compensator according to claim 1, characterized in that: the anti-friction centering device is characterized in that ball retainers (16) are arranged inside the first anti-friction centering bearing (9) and the second anti-friction centering bearing (15), balls (17) are arranged inside the ball retainers (16), and the balls (17) are provided with a plurality of balls.

5. An explosion-proof high pressure resistant rotary compensator according to claim 1, characterized in that: the end connecting pipe (4) is in threaded connection with the sealing gland (5) through a pressing bolt (6), and a nut (7) is installed at the joint of the pressing bolt (6) and the sealing gland (5).

6. An explosion-proof high pressure resistant rotary compensator according to claim 1, characterized in that: and one side of the high-temperature and high-pressure sealing ring (12) is provided with a sealing filler (13).