Pipeline expansion joint

Abstract

The utility model discloses a pipeline expansion joint, which relates to the technical field of pipeline engineering, and comprises an expansion joint, flanges are arranged at two ends of the expansion joint, the flanges are matched with the expansion joint, the aperture of the flanges is larger than that of the expansion joint, a connecting component is arranged between the flanges, the connecting component is respectively matched with the flanges and the expansion joint, and the connecting component is connected with the expansion joint. The connecting assembly comprises installation parts welded to the outer walls of the two sides of the flange. The length of the threaded rod is adjusted through the nut, a proper position is selected, original data of the dial are recorded, when the device works, the length of the expansion joint can be changed, lengthened or shortened along with medium conveying, the data of the dial are compared with the original data, and the data of the expansion joint can be compared with the original data. Compared with a traditional device, the device has the advantages that the deformation data of the expansion joint can be obtained in time, intervention and adjustment are facilitated, and damage caused by excessive deformation of the expansion joint is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline engineering, in particular to a pipeline expansion joint. Background Art

[0002] Pipe expansion joints are also called expansion joints, expansion joints, and compensators. Pipe expansion joints can expand and contract axially within a certain range, and can also overcome the offset caused by different axial connections of pipelines within a certain angle. They can greatly facilitate the installation and removal of valves and pipelines. They can expand and contract freely within the allowable expansion and contraction range of the pipeline. Once the maximum expansion and contraction is exceeded, they will act as a limit to ensure the safe operation of the pipeline.

[0003] However, the existing pipeline expansion joints can only buffer pipeline deformation when in use, and cannot directly obtain specific data of pipeline deformation or pulling. When testing the pipeline expansion joints, it is difficult to observe the degree of change of the pipeline expansion joints and thus it is impossible to accurately intervene in the degree of change of the expansion joints, which is inconvenient to use. Utility Model Content

[0004] The purpose of the present application is to provide a pipeline expansion joint to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a pipeline expansion joint, comprising an expansion joint, flanges are arranged at both ends of the expansion joint, the flanges are matched with the expansion joint, the aperture of the flanges is larger than the aperture of the expansion joint, a connecting assembly is arranged between the flanges, the connecting assembly is respectively matched with the flanges and the expansion joint, the connecting assembly comprises mounting blocks welded to the outer walls on both sides of the flanges, the mounting blocks are both equipped with threaded rods by threaded rotation, the outer walls on both sides of the threaded rods are rotatably connected with telescopic grooves and telescopic rods, the telescopic rods are matched with the telescopic grooves, and the telescopic rods are slidably connected with the inner walls of the telescopic grooves.

[0006] Preferably, the outer wall of the telescopic rod is provided with a dial, the dial is adapted to the telescopic rod, the outer wall of the dial is sprayed with equidistantly distributed scale lines, the inner wall of the telescopic slot is provided with a spring, the end of the spring is connected to the telescopic rod.

[0007] Preferably, the expansion joint comprises an inner lining layer, the inner lining layer is made of heat-resistant rubber material, the outer wall of the inner lining layer is provided with a heat insulation layer, the outer wall of the heat insulation layer is provided with a flame retardant layer, the heat insulation layer is adapted to the flame retardant layer, and the heat insulation layer is made of rock wool material.

[0008] Preferably, the outer wall of the flame retardant layer is provided with a protective layer, the protective layer is made of metal, and the protective layer is stacked in a ring shape.

[0009] Preferably, a nut is provided on the outer wall of the threaded rod, and mounting holes distributed at equal distances are opened on the outer wall of the flange, and the mounting holes are distributed in a circular shape.

[0010] Preferably, a sealing gasket is provided on the outer wall of the flange away from the expansion joint, the sealing gasket is matched with the flange, and the thickness of the sealing gasket is less than the thickness of the flange.

[0011] In summary, the technical effects and advantages of the utility model are:

[0012] 1. In the utility model, when in use, the expansion joint is connected to the pipeline through the flanges at both ends of the expansion joint. After the connection is completed, the length of the threaded rod is adjusted by the nut, and the appropriate position is selected according to the need. At this time, the original data of the dial is recorded. When the device is working, due to the need of medium transportation, the length of the expansion joint will change with the medium transportation, becoming longer or shorter. At this time, by comparing the data of the dial with the original data, the change of the expansion joint can be obtained to determine whether the device needs to be adjusted. The operation is simple and easy to use. Compared with traditional devices, the deformation data of the expansion joint can be obtained in time, which is convenient for intervention and adjustment to prevent damage caused by excessive deformation of the expansion joint.

[0013] 2. In the utility model, the inner lining layer, the heat insulating layer and the flame retardant layer in the expansion joint cooperate with each other and can deform along with the deformation of the pipeline. They are not easy to break or be damaged and have a longer service life. At the same time, the protective layer protects the inner lining layer and the like to prevent wear and tear, thereby further extending the service life of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the main appearance structure in the embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the appearance structure of the expansion joint in the embodiment of the present application;

[0017] Figure 3 Schematic diagram of the cross-sectional structure of the expansion joint in the embodiment of the present application;

[0018] Figure 4 Schematic diagram of the connection component structure in an embodiment of the present application.

[0019] In the figure: 1. expansion joint; 2. flange; 3. mounting block; 4. threaded rod; 5. expansion slot; 6. telescopic rod; 7. dial; 8. lining layer; 9. thermal insulation layer; 10. flame retardant layer; 11. protective layer; 12. nut; 13. mounting hole; 14. sealing gasket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Reference Figure 1-4 A pipeline expansion joint shown in the figure comprises an expansion joint 1, flanges 2 are arranged at both ends of the expansion joint 1, the flanges 2 are adapted to the expansion joint 1, the aperture of the flange 2 is larger than the aperture of the expansion joint 1, a connecting assembly is arranged between the flanges 2, the connecting assembly is adapted to the flanges 2 and the expansion joint 1 respectively, the connecting assembly comprises a mounting block 3 welded to the outer walls on both sides of the flange 2, the mounting block 3 is installed with a threaded rod 4 by threaded rotation, the outer walls on both sides of the threaded rod 4 are rotatably connected with a telescopic groove 5 and a telescopic rod 6, the telescopic rod 6 is adapted to the telescopic groove 5, and the telescopic rod 6 is The inner wall of the telescopic groove 5 is slidably connected, the outer wall of the telescopic rod 6 is provided with a dial 7, the dial 7 is adapted to the telescopic rod 6, the outer wall of the dial 7 is sprayed with equidistantly distributed scale lines, the inner wall of the telescopic groove 5 is provided with a spring, the end of the spring is connected to the telescopic rod 6, the outer wall of the threaded rod 4 is provided with a nut 12, the outer wall of the flange 2 is provided with equidistantly distributed mounting holes 13, the mounting holes 13 are distributed in a circle, the outer wall of the flange 2 away from the expansion joint 1 is provided with a sealing gasket 14, the sealing gasket 14 is adapted to the flange 2, and the thickness of the sealing gasket 14 is less than the thickness of the flange 2.

[0022] By means of the above structure: when in use, the expansion joint 1 is connected to the pipeline through the flanges 2 at both ends of the expansion joint 1. After the connection is completed, the length of the threaded rod 4 is adjusted by the nut 12, and a suitable position is selected according to needs. At this time, the original data of the dial 7 is recorded. When the device is working, due to the need for medium transportation, the length of the expansion joint 1 will change with the medium transportation, becoming longer or shorter. At this time, by comparing the data of the dial 7 with the original data, the change of the expansion joint 1 can be obtained to determine whether the device needs to be adjusted. The operation is simple and easy to use. Compared with traditional devices, the deformation data of the expansion joint 1 can be obtained in time, which is convenient for intervention and adjustment to prevent damage caused by excessive deformation of the expansion joint 1.

[0023] like Figure 4As shown, the expansion joint 1 includes an inner lining layer 8, which is made of heat-resistant rubber material. The outer wall of the inner lining layer 8 is provided with an insulating layer 9, and the outer wall of the insulating layer 9 is provided with a flame retardant layer 10. The insulating layer 9 is adapted to the flame retardant layer 10. The insulating layer 9 is made of rock wool. The outer wall of the flame retardant layer 10 is provided with a protective layer 11, which is made of metal material. The protective layer 11 is stacked in a ring shape. The inner lining layer 8, the insulating layer 9 and the flame retardant layer 10 in the expansion joint 1 cooperate with each other and can deform with the deformation of the pipeline. They are not easy to break and damage, and have a longer service life. At the same time, the protective layer 11 protects the inner lining layer 8 and the like to prevent wear, thereby further extending the service life of the expansion joint 1.

[0024] How this utility works:

[0025] When in use, the expansion joint 1 is connected to the pipeline through the flanges 2 at both ends of the expansion joint 1. After the connection is completed, the length of the threaded rod 4 is adjusted by the nut 12, and a suitable position is selected according to the needs. At this time, the original data of the dial 7 is recorded. When the device is working, due to the need for medium transportation, the length of the expansion joint 1 will change with the medium transportation, becoming longer or shorter. At this time, by comparing the data of the dial 7 with the original data, the change of the expansion joint 1 can be obtained to determine whether the device needs to be adjusted. The operation is simple and easy to use. Compared with traditional devices, the deformation data of the expansion joint 1 can be obtained in time, which is convenient for intervention and adjustment to prevent the expansion joint 1 from being damaged due to excessive deformation;

[0026] The lining layer 8, the heat insulating layer 9 and the flame retardant layer 10 in the expansion joint 1 cooperate with each other and can deform along with the deformation of the pipeline. They are not easily broken or damaged and have a longer service life. At the same time, the protective layer 11 protects the lining layer 8 and the like to prevent wear and tear, thereby further extending the service life of the expansion joint 1.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline expansion joint, comprising an expansion joint (1), characterized in that: Flanges (2) are provided at both ends of the expansion joint (1), the flanges (2) are matched with the expansion joint (1), the aperture of the flanges (2) is larger than the aperture of the expansion joint (1), a connecting assembly is provided between the flanges (2), the connecting assembly is matched with the flanges (2) and the expansion joint (1) respectively, the connecting assembly comprises mounting blocks (3) welded to the outer walls on both sides of the flanges (2), the mounting blocks (3) are both rotatably mounted with threaded rods (4), the outer walls on both sides of the threaded rods (4) are both rotatably connected with telescopic grooves (5) and telescopic rods (6), the telescopic rods (6) are matched with the telescopic grooves (5), and the telescopic rods (6) are slidably connected with the inner walls of the telescopic grooves (5).

2. A pipeline expansion joint according to claim 1, characterized in that: The outer wall of the telescopic rod (6) is provided with a dial (7), the dial (7) is adapted to the telescopic rod (6), and the outer wall of the dial (7) is sprayed with scale lines distributed at equal distances. The inner wall of the telescopic slot (5) is provided with a spring, and the end of the spring is connected to the telescopic rod (6).

3. A pipeline expansion joint according to claim 1, characterized in that: The expansion joint (1) comprises an inner lining layer (8), the inner lining layer (8) is made of heat-resistant rubber material, the outer wall of the inner lining layer (8) is provided with a heat insulation layer (9), the outer wall of the heat insulation layer (9) is provided with a flame retardant layer (10), the heat insulation layer (9) is compatible with the flame retardant layer (10), and the heat insulation layer (9) is made of rock wool.

4. A pipeline expansion joint according to claim 3, characterized in that: The outer wall of the flame retardant layer (10) is provided with a protective layer (11), the protective layer (11) is made of metal, and the protective layers (11) are stacked in a ring shape.

5. A pipeline expansion joint according to claim 1, characterized in that: The outer wall of the threaded rod (4) is provided with a nut (12), and the outer wall of the flange (2) is provided with mounting holes (13) distributed at equal distances, and the mounting holes (13) are distributed in a circular shape.

6. A pipeline expansion joint according to claim 1, characterized in that: A sealing gasket (14) is provided on the outer wall of the flange (2) away from the expansion joint (1); the sealing gasket (14) is matched with the flange (2); and the thickness of the sealing gasket (14) is less than the thickness of the flange (2).

Images