Flexible plugging tool for nuclear power high-pressure steam pipeline

Abstract

The utility model relates to a flexible plugging tool for a nuclear power high-pressure steam pipeline, which comprises a manual oil pump, a high-pressure rubber pipe connected with the manual oil pump, a hydraulic tensioner connected with the high-pressure rubber pipe and a flexible plugging structure arranged on the upper portion of the hydraulic tensioner. A group of outer pipe body limiting structures are arranged on the bottom fixing structure outside the flexible plugging structure, and each outer pipe body limiting structure comprises an external fixed frame body structure arranged at the upper part of the bottom fixing structure and a side end locking structure arranged in the external fixed frame body structure. The flexible plugging tool for the nuclear power high-pressure steam pipeline is simple in structure, convenient to use, high in clamping degree, free of displacement and particularly suitable for pipeline leakage plugging in the high-pressure steam pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of plugging devices, in particular to a flexible plugging tool for high-pressure steam pipelines in nuclear power plants. Background Art

[0002] The high-pressure steam system in nuclear power plants mainly consists of pipelines, valves and related instruments. The pipelines and components of the main steam system are mainly arranged in the turbine building, including the main steam pipeline from the outlet of the steam generator to the main steam valve and the equipment and pipelines connected to the main steam pipeline connected to the steam turbine. The old pipelines are perforated due to years of use and corrosion, resulting in the leakage of fluids or gases inside the pipelines, which is dangerous. At present, the repair of pipelines generally requires stopping the use of the pipelines to replace the pipelines. However, this repair method will seriously affect the normal operation process, and some pipelines are not easy to disassemble and replace. Therefore, plugging operations are required. During the plugging process of pressure pipeline leaks, especially some difficult plugging points such as cracks in straight pipes and holes in elbows of pipelines. In addition, during the plugging process, there will be problems with the unstable connection between the fixing device and the pipeline. Content of the Utility Model

[0003] The purpose of the utility model is to provide a flexible plugging tool for high-pressure steam pipelines in nuclear power plants to solve the problem of stable connection during the use of the flexible plugging tool for high-pressure steam pipelines in nuclear power plants.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a flexible plugging tool for high-pressure steam pipelines in nuclear power plants, including a manual oil pump, a high-pressure rubber hose connected to the manual oil pump, a hydraulic tensioner connected to the high-pressure rubber hose, and a flexible plugging structure arranged on the upper part of the hydraulic tensioner. The flexible plugging structure penetrates through a bottom fixing structure, and a set of outer pipe body limiting structures are arranged on the bottom fixing structure outside the flexible plugging structure. The outer pipe body limiting structures include an external fixing frame body structure arranged on the upper part of the bottom fixing structure and a side-end locking structure arranged in the external fixing frame body structure.

[0005] The bottom fixing structure includes a connecting base, an upper connecting platform arranged on the upper part of the connecting base, and an adjustment track group arranged between the upper connecting platform and the connecting base. A through-hole group penetrating through the flexible plugging body is arranged between the upper connecting platform and the connecting base.

[0006] The external fixing frame body structure includes a pipe body profiling connecting frame, a movable internal pressing part body arranged in the pipe body profiling connecting frame, and a moving block arranged at the upper end of the pipe body profiling connecting frame.

[0007] The described side-end locking structure includes a hinge seat provided on the outer side of the pipe body profiling connection frame, a hinge pressing body provided on the upper part of the hinge seat, and a side-end pressing block provided on the inner end face of the hinge pressing body. The hinge seat is provided at the side end of the upper connection platform, and a side-end pin rod is provided on the upper connection platform outside the hinge seat.

[0008] A first connection platform is provided at the connection between the manual oil pump and the high-pressure rubber hose, and a second connection platform is provided at the connection between the high-pressure rubber hose and the hydraulic tensioner.

[0009] The beneficial effects of the present utility model are as follows: The flexible plugging tool for nuclear power high-pressure steam pipelines has a simple structure, is easy to use, has a high clamping degree, and will not displace. It is particularly suitable for use in plugging pipeline leaks in high-pressure steam pipelines.

[0010] Hereinafter, the present utility model will be described in more detail with reference to the accompanying drawings and embodiments. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 is Figure 1 a partial enlarged view of

[0013] Figure 3 It is a clamping state diagram of the present utility model.

[0014] In the figure: 1. Manual oil pump, 2. High-pressure rubber hose, 3. Hydraulic tensioner, 4. Flexible plugging structure, 5. Connection bottom platform, 6. Upper connection platform, 7. Adjustment track group, 8. Through-hole group, 9. Pipe body profiling connection frame, 10. Movable inner pressing part body, 11. Moving block, 12. Hinge seat, 13. Hinge pressing body, 14. Side-end pressing block, 15. Side-end pin rod, 16. First connection platform, 17. Second connection platform. Specific Embodiments

[0015] In the application text, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0016] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] Embodiment 1, as Figures 1-3 shown, a flexible plugging tool for a high-pressure steam pipeline in a nuclear power plant includes a manual oil pump 1, a high-pressure rubber hose 2 connected to the manual oil pump, a hydraulic tensioner 3 connected to the high-pressure rubber hose, and a flexible plugging structure 4 provided on the upper part of the hydraulic tensioner. The flexible plugging structure is disposed through a bottom fixing structure, and a set of outer pipe body limiting structures are provided on the bottom fixing structure outside the flexible plugging structure. The outer pipe body limiting structures include an external fixing frame body structure provided on the upper part of the bottom fixing structure and a side-end locking structure provided in the external fixing frame body structure.

[0018] The bottom fixing structure includes a connecting base 5, an upper connecting base 6 provided on the upper part of the connecting base, and an adjustment track group 7 provided between the upper connecting base and the connecting base. A through-hole group 8 penetrating the flexible plugging body is provided between the upper connecting base and the connecting base.

[0019] The external fixing frame body structure includes a pipe body profiling connecting frame 9, a movable inner pressing member body 10 provided in the pipe body profiling connecting frame, and a moving block 11 provided at the upper end of the pipe body profiling connecting frame.

[0020] The side-end locking structure includes a hinge seat 12 provided on the outer side of the pipe body profiling connecting frame, a hinge pressing body 13 provided on the upper part of the hinge seat, and a side-end top pressing block 14 provided on the inner end face of the hinge pressing body. The hinge seat is provided at the side end of the upper part of the upper connecting base, and a side-end pin rod 15 is provided on the upper connecting base outside the hinge seat.

[0021] A first connecting base 16 is provided at the connection between the manual oil pump and the high-pressure rubber hose, and a second connecting base 17 is provided at the connection between the high-pressure rubber hose and the hydraulic tensioner.

[0022] This flexible plugging tool for a high-pressure steam pipeline in a nuclear power plant has a simple structure, is easy to use, has a high clamping degree, and will not displace. It is particularly suitable for use in plugging pipeline leaks in high-pressure steam pipelines.

[0023] The above embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

[0024] Parts not involved in the present utility model are the same as the prior art or can be implemented by using the prior art.

Claims

1. A flexible plugging tool for a nuclear power high-pressure steam pipeline, comprising a manual oil pump, a high-pressure hose connected to the manual oil pump, a hydraulic tensioner connected to the high-pressure hose, and a flexible plugging structure arranged on the upper part of the hydraulic tensioner, characterized in that: The flexible sealing structure is arranged throughout the bottom fixed structure, and a group of outer tube body limiting structures are arranged on the bottom fixed structure outside the flexible sealing structure. The outer tube body limiting structure includes an external fixed frame body structure arranged on the upper part of the bottom fixed structure and a side end locking structure arranged in the external fixed frame body structure.

2. The flexible plugging tool for nuclear power high-pressure steam pipeline according to claim 1, characterized in that: The bottom fixing structure includes a connecting base, an upper connecting base arranged on the upper part of the connecting base, and an adjustment track group arranged between the upper connecting base and the connecting base. A through hole group penetrating the soft blocking body is arranged between the upper connecting base and the connecting base.

3. The flexible plugging tool for nuclear power high-pressure steam pipeline according to claim 1, characterized in that: The external fixed frame structure comprises a tube body imitation connection frame, a movable inner pressure piece body arranged in the tube body imitation connection frame and a moving block arranged at the upper end of the tube body imitation connection frame.

4. The flexible plugging tool for nuclear power high-pressure steam pipeline according to claim 1, characterized in that: The side end locking structure includes a hinge seat arranged on the outside of the tube body imitation connection frame, a hinge pressure body arranged on the upper part of the hinge seat, and a side end top pressure block arranged on the inner end surface of the hinge pressure body. The hinge seat is arranged on the side end of the upper part of the upper connecting platform, and a side end pin rod is arranged on the upper connecting platform outside the hinge seat.

5. The flexible plugging tool for nuclear power high-pressure steam pipeline according to claim 1, characterized in that: A first connection platform is arranged at the connection between the manual oil pump and the high-pressure rubber hose, and a second connection platform is arranged at the connection between the high-pressure rubber hose and the hydraulic tensioner.

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