CN215862284U

CN215862284U - Novel expansion joint for long-distance pipeline

Info

Publication number: CN215862284U
Application number: CN202122323651.2U
Authority: CN
Inventors: 陈浩; 刘士琦; 王亮亮; 祝海鹏
Original assignee: Hulunbuir Branch Of Inner Mongolia Special Equipment Inspection And Research Institute
Current assignee: Hulunbuir Branch Of Inner Mongolia Special Equipment Inspection And Research Institute
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-18
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a novel expansion joint for a long-distance pipeline, which relates to the technical field of expansion joints and comprises an expansion joint body, flange table tops at two ends of the expansion joint body are fixedly connected with side sliding blocks, the side sliding blocks are slidably connected inside side sliding grooves, the side sliding grooves are formed in the side surfaces of side supporting blocks, the side supporting blocks are fixedly connected to the two side surfaces inside an installation box body, and the right end of the upper surface of each side supporting block is fixedly connected with a first connecting block. According to the utility model, the side supporting rigidity of the expansion joint body in use is increased, the problem that the spring tube is easy to deform completely due to the fact that the spring tube is only used for guiding and supporting for a long time is solved, and pure water or liquid ammonia is sealed in the copper sealing tube, so that the rubber contraction part of the expansion joint body is guaranteed to be weakened due to the influence of temperature change, and the problem that cracks appear on the surface of rubber due to excessive deformation of the rubber caused by heating or cooling is solved.

Description

Novel expansion joint for long-distance pipeline

Technical Field

The utility model relates to the technical field of expansion joints, in particular to a novel expansion joint for a long-distance pipeline.

Background

A compensator, also known as an expansion joint or a telescopic joint, is conventionally composed of a bellows and end pipes, a bracket, a flange, a conduit and other accessories which form a working main body of the compensator. Belongs to a compensating element. The effective telescopic deformation of the working body corrugated pipe is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction due to heat and the like or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like.

The expansion joint that has now is divided into two main categories, carry water and oil and use rubber type expansion joint more, it is bellows form metal type expansion joint more to carry the flue gas, wherein the rubber type expansion joint that the pipeline of long-distance transportation oils used sets up the spring pipe through connecting on the flange terminal surface at both ends and plays the support guide effect when expanding with heat and contracting with cold to the expansion joint, but this type of expansion joint side support rigidity is not enough when using, only rely on the spring pipe to easily cause spring pipe bending deformation for a long time, this expansion joint can't reduce the influence of thermal-expansion pyrocondensation to the expansion joint position that stretches out and draws back when using simultaneously, rubber is heated or receives the excessive crack that can cause the rubber surface to appear of cold deformation.

Therefore, it is necessary to provide a new expansion joint for long-distance pipeline to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to: the utility model provides a novel expansion joint for a long-distance pipeline, aiming at solving the problems that the side supporting rigidity of the existing expansion joint is insufficient and the intensity of the expansion position of the expansion joint affected by thermal expansion and cold contraction can not be reduced.

(II) technical scheme

The utility model specifically adopts the following technical scheme for realizing the purpose:

a novel expansion joint for a long-distance pipeline comprises an expansion joint body, flange table surfaces at two ends of the expansion joint body are fixedly connected with side sliding blocks, the side sliding block is connected in the side sliding groove in a sliding way, the side sliding groove is arranged on the side surface of the side supporting block, the side supporting blocks are fixedly connected with the two side surfaces inside the mounting box body, the right end of the upper surface of each side supporting block is fixedly connected with a first connecting block, the left end of the upper surface of the side supporting block is fixedly connected with a second connecting block, a first connecting column is inserted into a side end socket of the first connecting block, the first connecting column is fixedly connected with one end of a copper packaging tube, the other end of the copper packaging tube is fixedly connected with a second connecting column, the second connecting column penetrates through a slotted hole of the second connecting block and is in threaded connection with a fastening nut, and pure water or liquid ammonia is packaged inside the copper packaging tube.

Furthermore, fixedly connected with adjusts the auxiliary block on the both ends flange mesa of expansion joint body, the inside bolted connection who adjusts the auxiliary block has bolt type to adjust the pole, two pass through expansion spring fixed connection between the bolt type regulation pole, two the outside swing joint of bolt type regulation pole has insulation support.

Furthermore, one end of the bolt-type adjusting rod, which is far away from the adjusting auxiliary block, is a circular table top, and the diameter of the circular table top is matched with that of the inner wall of the heat-insulating sleeve.

Furthermore, the upper end face of the installation box body is provided with a rectangular connecting groove, and four corners of the upper end face of the installation box body are provided with threaded counter bores.

Furthermore, the front end face and the rear end face of the installation box body are fixedly connected with the guide sleeve ring, and the installation position of the guide sleeve ring is matched with the position of the pipeline connecting port of the expansion joint body.

Furthermore, four corners of two side surfaces of the installation box body are provided with installation cushion blocks, and threaded holes are formed in the upper surfaces of the installation cushion blocks.

Furthermore, the overall dimension of side sliding block and the flute profile size looks adaptation of side sliding tray, the width of side sliding block is the same with the flange mesa width of expansion joint body.

Further, the inside joint of rectangle spread groove has a flange, flange's last fixed surface is connected with the apron, pass through connecting screw threaded connection between apron and the installation box.

(III) advantageous effects

The utility model has the following beneficial effects:

1. when the expansion joint is used, when a conveying pipeline connected with two ends of the expansion joint body is affected by the effects of expansion with heat and contraction with cold, the rubber contraction part of the expansion joint body deforms, so that flange table tops at two ends of the expansion joint body displace, and the side sliding block moves along the side sliding groove in a small amplitude; because it has pure water or liquid ammonia to seal in the copper sealing tube, pure water and liquid ammonia are the great liquid of specific heat capacity, consequently can guarantee when being cooled or being heated that the inside temperature variation range of installation box obtains reducing to the rubber contraction part of having guaranteed the expansion joint body obtains weakening by the influence of temperature variation, thereby has avoided rubber to be heated or has received the excessive problem appearance that causes the rubber surface crack of cold deformation.

2. According to the utility model, by arranging the bolt type adjusting rod and the expansion spring, when the flange table-board of the expansion joint body is subjected to thermal expansion and cold contraction effects to generate displacement, the bolt type adjusting rod moves along with the expansion joint body, so that the expansion spring is stretched or compressed, and the circular table-board of the bolt type adjusting rod slides along the inner wall of the heat-insulating sleeve, so that the matching of the bolt type adjusting rod and the expansion spring has the effect of reinforcing the guide support.

3. According to the utility model, the rectangular connecting groove is formed in the upper end surface of the mounting box body, when the mounting box body and the cover plate are sealed, the connecting flange completely enters the rectangular connecting groove, then the bolt penetrates through the threaded counter bore to connect the mounting box body, so that a completely sealed space can be formed inside the mounting box body, and therefore, pure water or liquid ammonia packaged in the copper packaging pipe can play the best effect, and the mounting cushion block and the threaded hole are arranged, so that the mounting box body can be conveniently positioned and connected.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of a side sliding block attachment structure of the present invention;

FIG. 4 is a schematic diagram of a cross-sectional structure of the insulating sleeve of the present invention;

FIG. 5 is a schematic view of the cover plate structure of the present invention;

fig. 6 is a schematic view of a connection structure of the installation case and the cover plate according to the present invention.

Reference numerals: 1. an expansion joint body; 2. adjusting the auxiliary block; 3. a bolt-type adjustment lever; 4. an expansion spring; 5. a heat-insulating sleeve; 6. a side sliding block; 7. a side sliding groove; 8. a side support block; 9. installing a box body; 10. a first connection block; 11. a second connecting block; 12. a first connecting column; 13. a copper packaging tube; 14. a second connecting column; 15. fastening a nut; 16. a rectangular connecting groove; 17. a threaded counter bore; 18. a guide collar; 19. installing a cushion block; 20. a threaded hole; 21. a connecting flange; 22. and (7) a cover plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, 2, 3, 5 and 6, a novel expansion joint for a long-distance pipeline comprises an expansion joint body 1, flange table tops at two ends of the expansion joint body 1 are fixedly connected with side sliding blocks 6, the external dimension of each side sliding block 6 is matched with the groove shape dimension of a side sliding groove 7, the width of each side sliding block 6 is the same as that of the flange table top of the expansion joint body 1, each side sliding block 6 is slidably connected inside the side sliding groove 7, each side sliding groove 7 is formed in the side surface of each side supporting block 8, each side supporting block 8 is fixedly connected to the two side surfaces inside a mounting box body 9, the right end of the upper surface of each side supporting block 8 is fixedly connected with a first connecting block 10, the left end of the upper surface of each side supporting block 8 is fixedly connected with a second connecting block 11, a first connecting column 12 is inserted inside a side socket of each first connecting block 10, and the first connecting column 12 is fixedly connected to one end of a copper packaging pipe 13, the other end of the copper packaging tube 13 is fixedly connected with a second connecting column 14, the second connecting column 14 penetrates through a slotted hole of the second connecting block 11 and is in threaded connection with a fastening nut 15, and pure water or liquid ammonia is packaged inside the copper packaging tube 13.

In the embodiment, when the expansion joint is used, when a conveying pipeline connected with two ends of the expansion joint body 1 is affected by a thermal expansion and contraction effect, a rubber contraction part of the expansion joint body 1 deforms, so that flange table tops at two ends of the expansion joint body 1 are displaced, the side sliding block 6 moves along the side sliding groove 7 in a small amplitude, and the side sliding groove 7 is formed in the side end surface of the side supporting block 8, so that the side supporting rigidity of the expansion joint body 1 in use is increased, and the problem that a spring pipe is easy to deform completely due to the fact that only the spring pipe is used for guiding and supporting for a long time is solved; because it has pure water or liquid ammonia to seal in the copper sealed tube 13, pure water and liquid ammonia are the great liquid of specific heat capacity, consequently can guarantee when being cooled or being heated that the inside temperature variation range of installation box 9 obtains reducing to the rubber contraction part of having guaranteed expansion joint body 1 is weakened by the influence of temperature variation, thereby has avoided rubber to be heated or has received the excessive problem appearance that causes the rubber surface crack of cold deformation.

Example 2

Referring to fig. 1 and 4, the embodiment is further optimized on the basis of embodiment 1, specifically, the adjusting auxiliary blocks 2 are fixedly connected to the flange table surfaces at the two ends of the expansion joint body 1, the bolt-type adjusting rods 3 are connected to the inner portions of the adjusting auxiliary blocks 2 by bolts, the two bolt-type adjusting rods 3 are fixedly connected to each other by expansion springs 4, and the heat-insulating sleeves 5 are movably connected to the outer portions of the two bolt-type adjusting rods 3.

Specifically, one end of the bolt type adjusting rod 3, which is far away from the adjusting auxiliary block 2, is a circular ring-shaped table top, and the diameter of the circular ring-shaped table top is matched with the diameter of the inner wall of the heat-insulating sleeve 5.

In this embodiment, by arranging the bolt type adjusting rod 3 and the expansion spring 4, when the flange table top of the expansion joint body 1 is subjected to the thermal expansion and cold contraction effect and is displaced, the bolt type adjusting rod 3 moves along with the expansion joint body 1, so that the expansion spring 4 is stretched or compressed, and the circular table top of the bolt type adjusting rod 3 slides along the inner wall of the heat-insulating sleeve 5, so that the matching of the bolt type adjusting rod 3 and the expansion spring 4 has the effect of strengthening the guide support.

Example 3

Referring to fig. 1-6, the present embodiment is optimized based on example 1 or example 2, specifically, a rectangular connecting groove 16 is disposed on the upper end surface of the installation box 9, and four corners of the upper end surface of the installation box 9 are provided with screw counterbores 17.

Specifically, the front end face and the rear end face of the installation box body 9 are fixedly connected with a guide sleeve ring 18, and the installation position of the guide sleeve ring 18 is matched with the position of a pipeline connecting port of the expansion joint body 1.

Specifically, four corners of two side surfaces of the mounting box body 9 are provided with mounting cushion blocks 19, and the upper surfaces of the mounting cushion blocks 19 are provided with threaded holes 20.

Specifically, a connecting flange 21 is clamped inside the rectangular connecting groove 16, a cover plate 22 is fixedly connected to the upper surface of the connecting flange 21, and the cover plate 22 is in threaded connection with the installation box 9 through a connecting screw.

In this embodiment, through set up rectangle connecting groove 16 at the up end of installation box 9, when installation box 9 and apron 22 sealed lid, connecting flange 21 is intact to enter into rectangle connecting groove 16, then pass the screw thread counter bore 17 with the bolt and connect installation box 9, the inside of having guaranteed installation box 9 can form one and seal perfect space, thereby make the pure water or the liquid ammonia of encapsulation in copper encapsulation pipe 13 can exert the best effect, set up installation cushion 19 and screw hole 20, be convenient for carry out the location with installation box 9 and connect.

In summary, the following steps: when the expansion joint is used, when a conveying pipeline connected with two ends of the expansion joint body 1 is affected by a thermal expansion and contraction effect, the rubber contraction part of the expansion joint body 1 deforms, so that flange table tops at two ends of the expansion joint body 1 are displaced, the side sliding block 6 moves along the side sliding groove 7 in a small amplitude, and the side sliding groove 7 is formed in the side end face of the side supporting block 8, so that the side supporting rigidity of the expansion joint body 1 in use is increased, and the problem that a spring pipe is easy to deform completely due to the fact that only the spring pipe is used for guiding and supporting for a long time is solved; because the copper sealing tube 13 is sealed with pure water or liquid ammonia, the pure water and the liquid ammonia are liquids with larger specific heat capacity, it is thus ensured that the amplitude of the temperature variation inside the installation tank 9 is reduced when it is cooled or heated, thereby ensuring that the rubber contraction part of the expansion joint body 1 is weakened under the influence of temperature change, thereby avoiding the problem that the rubber surface has cracks caused by excessive deformation of the rubber caused by heating or cooling, and by arranging the bolt type adjusting rod 3 and the expansion spring 4, when the flange table surface of the expansion joint body 1 is subjected to thermal expansion and cold contraction effects to displace, the bolt type adjusting rod 3 moves along with the expansion joint body 1, so that the expansion spring 4 is stretched or compressed, the circular table surface of the bolt type adjusting rod 3 slides along the inner wall of the heat insulation sleeve 5, so the matching of the bolt type adjusting rod 3 and the expansion spring 4 has the effect of strengthening the guiding support.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, and the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a novel expansion joint for long distance pipeline, includes expansion joint body (1), its characterized in that: the expansion joint comprises an expansion joint body (1), flange table tops at two ends of the expansion joint body (1) are fixedly connected with side sliding blocks (6), the side sliding blocks (6) are slidably connected inside side sliding grooves (7), the side sliding grooves (7) are arranged on the side surfaces of side supporting blocks (8), the side supporting blocks (8) are fixedly connected on the two side surfaces inside an installation box body (9), the right end of the upper surface of each side supporting block (8) is fixedly connected with a first connecting block (10), the left end of the upper surface of each side supporting block (8) is fixedly connected with a second connecting block (11), a first connecting column (12) is inserted inside a side end socket of each first connecting block (10), the first connecting column (12) is fixedly connected at one end of a copper packaging pipe (13), the other end of the copper packaging pipe (13) is fixedly connected with a second connecting column (14), and the second connecting column (14) penetrates through a groove hole of the second connecting block (11) and is in threaded connection with a fastening nut (15), pure water or liquid ammonia is packaged in the copper packaging tube (13).

2. The novel expansion joint for the long-distance pipeline as claimed in claim 1, wherein: fixedly connected with adjusts supplementary piece (2) on the both ends flange mesa of expansion joint body (1), the inside bolted connection who adjusts supplementary piece (2) has bolt type to adjust pole (3), two through expanding spring (4) fixed connection between bolt type regulation pole (3), two the outside swing joint of bolt type regulation pole (3) has insulation support pipe (5).

3. The novel expansion joint for the long-distance pipeline as claimed in claim 2, wherein: the end, far away from the adjusting auxiliary block (2), of the bolt-type adjusting rod (3) is a circular ring-shaped table top, and the diameter of the circular ring-shaped table top is matched with the diameter of the inner wall of the heat-insulating sleeve (5).

4. The novel expansion joint for the long-distance pipeline as claimed in claim 1, wherein: the upper end face of the installation box body (9) is provided with a rectangular connecting groove (16), and four corners of the upper end face of the installation box body (9) are provided with threaded counter bores (17).

5. The novel expansion joint for the long-distance pipeline as claimed in claim 1, wherein: the front end face and the rear end face of the installation box body (9) are fixedly connected with the guide sleeve ring (18), and the installation position of the guide sleeve ring (18) is matched with the position of a pipeline connecting port of the expansion joint body (1).

6. The novel expansion joint for the long-distance pipeline as claimed in claim 1, wherein: mounting cushion blocks (19) are arranged at four corners of two side faces of the mounting box body (9), and threaded holes (20) are formed in the upper surfaces of the mounting cushion blocks (19).

7. The novel expansion joint for the long-distance pipeline as claimed in claim 1, wherein: the overall dimension of side sliding block (6) and the flute profile size looks adaptation of side sliding groove (7), the width of side sliding block (6) is the same with the flange mesa width of expansion joint body (1).

8. The novel expansion joint for the long-distance pipeline as claimed in claim 4, wherein: the inside joint of rectangle connecting groove (16) has connecting flange (21), the last fixed surface of connecting flange (21) is connected with apron (22), pass through connecting screw threaded connection between apron (22) and the installation box (9).