Bridge pipeline energy dissipation and impact reduction device

Abstract

The utility model belongs to the technical field of bridge structure construction, and particularly relates to an energy dissipation and impact reduction device for a gap bridge pipeline. The impact reducing device comprises a pipeline, a steel anchor block, a longitudinal energy dissipation plate and a transverse energy dissipation plate, the pipeline is supported on a bridge floor through the steel anchor block, the longitudinal energy dissipation plate is arranged on the inner side of the pipeline and is perpendicular to the pipeline, and the longitudinal energy dissipation plate is in a circular ring shape; the transverse energy dissipation plate is erected on the longitudinal energy dissipation plate circular rings and is in a corrugated shape. Compared with the prior art, the energy dissipation and impact reduction device formed by the longitudinal energy dissipation plates and the transverse energy dissipation plates can reduce the dynamic impact of the pipeline water hammer effect on the bridge structure, construction is convenient, repairing and replacing are easy, and the structural safety risk of the pipeline bridge is prevented and solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge structure construction, and specifically relates to an energy dissipation and impact reduction device for a bridge pipeline. Background Art

[0002] Inside a pipe with a smooth inner wall. When an open valve is suddenly closed, the water flow will exert pressure on the valve and the pipe wall. Due to the smooth pipe wall, the subsequent water flow quickly reaches its maximum under the action of inertia and produces a destructive effect, forming a "water hammer effect". The destructiveness of the water hammer effect is reflected in the following aspects: excessive pressure will cause the pipe to rupture, and conversely, too low pressure will cause the pipe to collapse and damage the valve and fixings. When the power is cut off and the system is shut down, the potential energy of the pumping system will overcome the inertia of the motor and command the system to stop sharply, which will also cause pressure shock and water hammer effect, which is very likely to have serious consequences. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an energy dissipation and impact reduction device for a bridge pipeline, which can be used to prevent and resolve the water hammer effect of pipeline bridges.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the utility model is a bridge pipeline energy dissipation and shock reduction device, comprising a pipeline, a longitudinal energy dissipation plate, a transverse energy dissipation plate, an upper overflow hole, a lower discharge hole and a flow hole, the pipeline is supported on the bridge deck by a steel pier, the longitudinal energy dissipation plate is located on the inner side of the pipeline, the longitudinal energy dissipation plate is perpendicular to the pipeline space, the longitudinal energy dissipation plate is annular as a whole, an upper overflow hole is arranged on the top of the longitudinal energy dissipation plate, a lower discharge hole is arranged on the bottom of the longitudinal energy dissipation plate, a flow hole is opened in the middle of the longitudinal energy dissipation plate, the upper overflow hole is vertically perpendicular to the lower discharge hole, the transverse energy dissipation plate is corrugated, the transverse energy dissipation plate is erected on two longitudinal energy dissipation plate rings, the two ends of the transverse energy dissipation plate are in a cantilever state, the transverse energy dissipation plate is perpendicular to the longitudinal energy dissipation plate space, the transverse energy dissipation plate is symmetrically arranged along the transverse bridge direction of the longitudinal energy dissipation plate, and the transverse energy dissipation plate is separated from the pipeline.

[0005] Preferably, the corrugated transverse energy dissipation plate is erected on the longitudinal energy dissipation plate and is perpendicular to the longitudinal energy dissipation plate space.

[0006] Preferably, the energy dissipation and shock reduction device formed by the longitudinal energy dissipation plate and the transverse energy dissipation plate is symmetrically arranged on the front and rear sides of the steel anchor pier.

[0007] When using it, you can follow the steps below:

[0008] (1) The pipeline is supported on the bridge deck by steel anchor piers;

[0009] (2) The upper overflow hole, lower discharge hole and flow hole are opened in advance on the longitudinal energy dissipation plate according to the designed size;

[0010] (3) The longitudinal energy dissipation plate is welded inside the pipeline at a predetermined position;

[0011] (4) The corrugated transverse energy dissipation plate is welded to the longitudinal energy dissipation plate;

[0012] (5) Install and weld the longitudinal energy dissipation plates and the transverse energy dissipation plates symmetrically on the front and rear sides of the steel anchor pier.

[0013] Compared with the prior art, the beneficial effects of the utility model are that the energy dissipation and impact reduction device formed by the longitudinal energy dissipation plates and the transverse energy dissipation plates can reduce the dynamic impact of the pipeline water hammer effect on the bridge structure, and is easy to construct, repair and replace, thereby preventing and resolving the structural safety risks of pipeline bridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall elevation view of the pipeline bridge.

[0015] Figure 2 This is the overall cross-sectional view of the pipeline bridge.

[0016] Figure 3 for Figure 2 Enlarged view of point B in the middle.

[0017] Figure 4 It is a cross-sectional view of the energy dissipation and impact reduction structure of the steel anchor pier and bridge pipeline.

[0018] Figure 5 This is a schematic diagram of the overall structure of the bridge pipeline energy dissipation and impact reduction structure and pipeline installation.

[0019] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0020] Figure 7 This is the cross-sectional view of the energy dissipation and impact reduction structure of the bridge pipeline.

[0021] In the figure: 1-pipeline, 2-longitudinal energy dissipation plate, 3-transverse energy dissipation plate, 4-upper overflow hole, 5-lower discharge hole, 6-flow hole, 7-steel anchor pier, 8-expansion joint. DETAILED DESCRIPTION

[0022] The energy dissipation and shock reduction device for bridge pipes of the present invention will be further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0023] Embodiment 1:

[0024] like Figures 1 to 6As shown, in this embodiment, the bridge pipeline energy dissipation and shock reduction device (hereinafter referred to as the shock reduction device) includes a pipeline 1, a longitudinal energy dissipation plate 2 and a transverse energy dissipation plate 3. A steel anchor 7 is arranged on the bridge deck, and the pipeline 1 passes through the inner hole of the steel anchor 7 and is supported on the bridge deck by the steel anchor 7. The two sections of the pipeline 1 are connected by an expansion joint 8.

[0025] Specifically, the longitudinal energy dissipation plate 2 is in a circular shape as a whole, and is located inside the pipeline 1. The longitudinal energy dissipation plate 2 and the pipeline 1 are arranged vertically in space, that is, the longitudinal energy dissipation plate 2 and the pipeline 1 are arranged coaxially in the axial direction. In this embodiment, the outer diameter of the longitudinal energy dissipation plate 2 is adapted to the inner diameter of the pipeline 1, and can be fixedly assembled inside the pipeline 1 as a whole.

[0026] In this embodiment, if Figure 4 As shown, an upper overflow hole 4 is provided at the top of the longitudinal energy dissipation plate 2, a lower discharge hole 5 is provided at the bottom of the longitudinal energy dissipation plate 2, and an overflow hole 6 is provided in the middle of the longitudinal energy dissipation plate 2, and the upper overflow hole 4 is vertically perpendicular to the lower discharge hole 5, that is, the upper overflow hole 4 and the lower discharge hole 5 are arranged at intervals in the vertical direction, and the connecting line of the two is perpendicular to the axis of the pipeline 1. In this way, the water flow in the pipeline 1 can flow through the upper overflow hole 4, the lower discharge hole 5 and the overflow hole 6, and at the same time be blocked by the unopened part of the longitudinal energy dissipation plate 2, thereby dissipating energy and reducing shock.

[0027] In this embodiment, if Figure 6 , 7 As shown, the length direction of the transverse energy dissipation plate 3 extends along the axial direction of the pipeline 1, and the cross section of the transverse energy dissipation plate 3 is corrugated. Each shock reduction device includes two longitudinal energy dissipation plates 2 arranged at intervals along the axis of the pipeline 1, and the transverse energy dissipation plate 3 is erected on the circular rings of the two longitudinal energy dissipation plates 2, so that the transverse energy dissipation plate 3 is separated from the inner wall of the pipeline 1. And the two ends of the transverse energy dissipation plate 3 are exposed from the longitudinal energy dissipation plate 2 and are in a cantilever state, so that the water flow will first pass through the transverse energy dissipation plate 3 to dissipate energy and then contact the longitudinal energy dissipation plate 2 to continue dissipating energy.

[0028] In this embodiment, two transverse energy dissipation plates 3 are arranged radially at intervals along the pipeline 1, and the two transverse energy dissipation plates 3 are symmetrically arranged along the transverse bridge direction of the longitudinal energy dissipation plate 2, so that the transverse energy dissipation plates 3 and the longitudinal energy dissipation plates 2 are arranged vertically in space.

[0029] Specifically, in this embodiment, the longitudinal energy dissipation plate 2 is provided with a perforation that matches the cross section of the transverse energy dissipation plate 3, and the transverse energy dissipation plate 3 passes through the perforation and is fixed on the longitudinal energy dissipation plate 2, or in other embodiments, the longitudinal energy dissipation plate 2 may not be provided with a perforation, in which case the transverse energy dissipation plate 3 may be provided in blocks, and the divided transverse energy dissipation plates 3 may be fixed on the longitudinal energy dissipation plate 2 according to the designed position. In this way, the corrugated transverse energy dissipation plate 3 can be used to reduce the impact of the water flow, thereby improving the overall impact reduction capacity of the impact reduction device.

[0030] like Figure 1 , 5 As shown, preferably, a shock reduction device formed by a longitudinal energy dissipation plate 2 and a transverse energy dissipation plate 3 is symmetrically arranged on both sides of the front and rear of the steel anchor 7 to improve the stability of the bridge pipe when the water flows in the pipe 1. In this embodiment, each section of the pipe 1 is supported by a steel anchor 7, and each section of the pipe 1 is provided with two shock reduction devices.

[0031] When using it, you can follow the steps below:

[0032] (1) The pipeline 1 is supported on the bridge deck by steel anchor piers 7;

[0033] (2) An upper overflow hole 4, a lower discharge hole 5 and a flow hole 6 are pre-opened on the longitudinal energy dissipation plate 2 according to the designed size;

[0034] (3) The longitudinal energy dissipation plate 2 is welded inside the pipeline 1 at a predetermined position;

[0035] (4) The corrugated transverse energy dissipation plate 3 is erected and welded on the longitudinal energy dissipation plate 2;

[0036] (5) The longitudinal energy dissipation plate 2 and the transverse energy dissipation plate 3 are installed and welded symmetrically on the front and rear sides of the steel anchor pier 7.

[0037] Compared with the prior art, the utility model utilizes the energy dissipation and impact reduction device formed by the longitudinal energy dissipation plate 2 and the transverse energy dissipation plate 3 to reduce the dynamic impact of the water hammer effect of the pipeline 1 on the bridge structure. It is easy to construct, repair and replace, and prevent and resolve the structural safety risks of pipeline bridges.

Claims

1. A bridge pipeline energy dissipation and shock reduction device, characterized in that: The device comprises a pipeline (1), a longitudinal energy dissipation plate (2), a transverse energy dissipation plate (3), an upper overflow hole (4), a lower discharge hole (5) and a flow hole (6); the pipeline (1) is supported on the bridge deck by a steel anchor pier; the longitudinal energy dissipation plate (2) is located on the inner side of the pipeline (1); the longitudinal energy dissipation plate (2) is vertical to the pipeline (1); the longitudinal energy dissipation plate (2) is in a circular shape as a whole; the upper overflow hole (4) is arranged on the top of the longitudinal energy dissipation plate (2); the lower discharge hole (5) is arranged on the bottom of the longitudinal energy dissipation plate (2); A flow hole (6) is provided in the middle of the longitudinal energy dissipation plate (2), the upper overflow hole (4) is vertically perpendicular to the lower discharge hole (5), the transverse energy dissipation plate (3) is corrugated, the transverse energy dissipation plate (3) is erected on two circular rings of the longitudinal energy dissipation plates (2), both ends of the transverse energy dissipation plate (3) are in a cantilever state, the transverse energy dissipation plate (3) is vertically perpendicular to the longitudinal energy dissipation plate (2), the transverse energy dissipation plate (3) is symmetrically arranged along the transverse bridge direction of the longitudinal energy dissipation plate (2), and the transverse energy dissipation plate (3) is separated from the pipeline (1).

2. The energy dissipation and shock reduction device for a bridge pipeline according to claim 1 is characterized in that: The corrugated transverse energy dissipation plate (3) is erected on the longitudinal energy dissipation plate (2) and is vertical to the longitudinal energy dissipation plate (2) in space.

3. The energy dissipation and shock reduction device for a bridge pipeline according to claim 1 is characterized in that: The energy dissipation and shock reduction device formed by the longitudinal energy dissipation plate (2) and the transverse energy dissipation plate (3) is symmetrically arranged on the front and rear sides of the steel anchor pier (7).

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