U-shaped expansion joint for modifying gas condensate pipeline of outer pipe gallery
By installing U-shaped pipes and expansion joints in the gas condensate pipes of the outer pipe gallery, the problem of weld fracture of the pipes under the influence of external temperature changes and mechanical stress is solved, reducing repair costs and improving pipeline safety.
Patent Information
- Application Number
- CN202421247592.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Under the influence of external temperature changes and mechanical stress, the gas condensate pipeline in the outer pipe corridor is prone to fracture at the weld, which leads to time-consuming and laborious repair.
Design a U-shaped expansion joint for the renovation of the gas condensate pipeline in the outer gallery. By installing a U-shaped pipe in the middle of the gas condensate pipeline, the stress is transferred to the expansion joint, and the structure of the expansion joint is used to cope with length changes and mechanical stress.
It effectively avoids fractures at the weld, reduces the manpower and material resources required for repair, and improves the service life and safety of the pipeline.
Smart Images
Figure CN222363581U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an expansion joint, in particular to a U-shaped expansion joint for the transformation of an external pipe gallery gas condensate pipeline. Background Art
[0002] Gas condensate pipes are special pipes used to transport gas condensate in industrial production processes. They are essential to ensure the normal operation of the gas system. They are not only responsible for transporting condensate, but also prevent gas leakage and ensure the safety of the working environment.
[0003] During daily use, the welds of the gas condensate pipelines in the external pipe gallery are easily broken due to the influence of external temperature and internal mechanical stress, and their repair is time-consuming and laborious. Utility Model Content
[0004] The utility model aims to provide a U-shaped expansion joint for the transformation of an external pipe gallery gas condensate pipeline, so as to solve the above technical problems.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a U-shaped expansion joint for the transformation of an external pipe gallery gas condensate pipeline, comprising a gas condensate pipeline, a U-shaped pipe, a hoop pipe, a limit pipe, and an expansion joint. The U-shaped pipe is installed in the middle of the gas condensate pipeline, the hoop pipe is respectively installed in the middle of the side ends of the front and rear risers of the U-shaped pipe, the limit pipe is respectively radially fixed to the inner side of the side end of the hoop pipe, and the expansion joint is installed in the middle of the U-shaped pipe.
[0006] On the basis of the above technical scheme, the expansion joint includes an outer end tube, a mounting flange, a bellows, a sleeve, a support plate, a sliding hole, a sliding tube, a limit sleeve A, and a limit sleeve B. The inner ends of the front and rear outer end tubes are respectively fixed with mounting flanges, the front and rear ends of the bellows are respectively connected to the inner ends of the mounting flanges, the sleeve is welded to one end of the outer end tube through the inside of the bellows, the support plates are respectively radially fixed to the bottom of the side ends of the front and rear mounting flanges, the sliding holes are respectively opened at the front and rear ends of the support plate, the side ends of the sliding tube are slidably connected to the front and rear sliding holes, and the front and rear limit tubes are respectively slidably connected to the front and rear parts of the sliding tube, the two limit sleeves A are respectively fixed to the outside of the side end of the sliding tube on the outside of the support plate, and the two limit sleeves B are respectively fixed to the middle part of the side end of the sliding tube on the inside of the support plate.
[0007] Based on the above technical solution, the gas condensate pipeline transfers stress to the expansion joint through the U-shaped tube.
[0008] Compared with the prior art, the utility model has the following advantages: the utility model installs U-shaped pipes and expansion joints on the gas condensate pipeline in the external pipeline gallery to cope with the length expansion and contraction of the pipeline when the external ambient temperature changes and the mechanical stress generated during operation, thereby avoiding the manpower and material resources spent on repairing fractures at the welds. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the appearance structure of the utility model.
[0010] Figure 2 This is a schematic diagram of the hoop structure of the utility model.
[0011] Figure 3 This is a schematic diagram of the expansion joint structure of the utility model.
[0012] Figure 4 It is a schematic diagram of the compression state of the expansion joint of the utility model.
[0013] In the figure: 1. gas condensate pipeline, 2. U-shaped pipe, 3. hoop pipe, 4. limit pipe, 5. expansion pipe, 6. outer end pipe, 7. mounting flange, 8. bellows, 9. sleeve, 10. support plate, 11. sliding hole, 12. sliding pipe, 13. limit sleeve A, 14. limit sleeve B. DETAILED DESCRIPTION
[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0015] like Figures 1 to 4 As shown, a U-shaped expansion joint for the reconstruction of an external pipe gallery gas condensate pipeline comprises a gas condensate pipeline 1, a U-shaped pipe 2, a hoop pipe 3, a limit pipe 4, and an expansion joint 5. The U-shaped pipe 2 is installed in the middle of the gas condensate pipeline 1, the hoop pipe 3 is respectively installed in the middle of the side ends of the front and rear risers of the U-shaped pipe 2, the limit pipe 4 is respectively radially fixed to the inner side of the side end of the hoop pipe 3, and the expansion joint 5 is installed in the middle of the U-shaped pipe 2.
[0016] The expansion joint 5 includes an outer end tube 6, a mounting flange 7, a bellows 8, a sleeve 9, a support plate 10, a sliding hole 11, a sliding tube 12, a limiting sleeve A13, and a limiting sleeve B14. The inner ends of the front and rear outer end tubes 6 are respectively fixed with the mounting flanges 7. The front and rear ends of the bellows 8 are respectively connected to the inner ends of the mounting flanges 7. The sleeve 9 is welded to one end of the outer end tube 6 through the inside of the bellows 8. The support plate 10 is respectively radially fixed to the bottom of the side ends of the front and rear mounting flanges 7. The sliding holes 11 are respectively opened at the front and rear ends of the support plate 10. The side ends of the sliding tube 12 are slidably connected to the front and rear sliding holes 11, and the front and rear limiting tubes 4 are respectively slidably connected to the front and rear parts of the sliding tube 12. The two limiting sleeves A13 are respectively fixed to the outside of the side ends of the sliding tube 12 on the outside of the support plate 10, and the two limiting sleeves B14 are respectively fixed to the middle part of the side ends of the sliding tube 12 on the inside of the support plate 10.
[0017] The gas condensate pipeline 1 transfers stress to the expansion joint 5 through the U-shaped tube 2 .
[0018] The working principle of the utility model: when the gas condensate pipeline 1 in the outer pipe gallery is affected by the external environment and causes the length to change or the internal mechanical stress to be generated, the gas condensate pipeline 1 transmits the force to the expansion joint 5 through the U-shaped pipe 2 riser, the U-shaped pipe 2 riser expands and contracts the mounting flange 7 through the appearance pipe 6, the mounting flange 7 expands and contracts the bellows 8 along the sleeve 9, and at the same time, the hoop pipe 3 slides the limit pipe 4 along the inside of the slide pipe 12 along the U-shaped pipe 2 riser, and the slide pipe 12 slides along the slide hole 11 during the deformation process under the limit of the limit sleeve A13 and the limit sleeve B14 to cope with the length change and the mechanical stress generated. Avoid the manpower and material resources spent on repairing the fracture at the weld.
[0019] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.
Claims
1. A U-shaped expansion joint for modifying a gas condensate pipeline in an external pipe gallery, comprising a gas condensate pipeline (1), a U-shaped pipe (2), a hoop pipe (3), a limit pipe (4), and an expansion joint (5), characterized in that: A U-shaped pipe (2) is installed in the middle of the gas condensate pipeline (1), the hoop pipe (3) is respectively installed in the middle of the side ends of the front and rear risers of the U-shaped pipe (2), the limit pipe (4) is respectively radially fixed to the inner side of the side ends of the hoop pipe (3), and the expansion joint (5) is installed in the middle of the U-shaped pipe (2).
2. A U-shaped expansion joint for the transformation of an external pipe gallery gas condensate pipeline according to claim 1, characterized in that: The expansion joint (5) comprises an outer end tube (6), a mounting flange (7), a bellows (8), a sleeve (9), a support plate (10), a sliding hole (11), a sliding tube (12), a limit sleeve A (13), and a limit sleeve B (14). The inner ends of the front and rear outer end tubes (6) are respectively fixed to the mounting flanges (7). The front and rear ends of the bellows (8) are respectively connected to the inner ends of the mounting flanges (7). The sleeve (9) is welded to one end of the outer end tube (6) through the inside of the bellows (8). The support plates (10) are respectively dia. The slide holes (11) are respectively opened at the front and rear ends of the support plate (10); the side ends of the slide tube (12) are slidably connected to the front and rear slide holes (11); and the front and rear limit tubes (4) are respectively slidably connected to the front and rear parts of the slide tube (12); the two limit sleeves A (13) are respectively fixed to the outside of the side ends of the slide tube (12) on the outside of the support plate (10); and the two limit sleeves B (14) are respectively fixed to the middle part of the side ends of the slide tube (12) on the inside of the support plate (10).
3. A U-shaped expansion joint for reconstruction of gas condensate pipeline in an outer pipe gallery according to claim 1, characterized in that: The gas condensate pipeline (1) transfers stress to the expansion joint (5) via the U-shaped tube (2).