Anchor block structure capable of considering installation of drainage system in water conveying pipeline

Abstract

The anchor block structure comprises an anchor block and a drainage system which are arranged at the lowest position of a main water conveying pipe at the same time, the main water conveying pipe is connected with the drainage system, and therefore complete drainage can be achieved when the main water conveying pipe is overhauled and maintained. The anchor blocks are arranged on the periphery of the main water conveying pipe and the periphery of the water drainage system and used for reinforcing and fixing the main water conveying pipe and the water drainage system. The anchor block structure provided by the utility model can ensure that the pipeline can be completely emptied when being overhauled and maintained, and meanwhile, due to the application of the anchor block structure, the occupied area and the engineering quantity of a project are reduced, so that the project investment is saved and the construction period is shortened.

Description

Technical Field

[0001] The utility model belongs to the field of water delivery, and in particular relates to a pier structure in a water delivery pipeline which can be used for installation of a water discharge system. Background Art

[0002] In long-distance water pipeline projects, the design needs to consider the release of water in the pipe during pipeline maintenance, so it is necessary to set up a pipeline drainage system at the lowest point of the pipeline (that is, in the longitudinal concave section of the pipeline). However, in high-lift water pipeline projects, due to the high water pressure in the pipeline, anchors are required at the plane and vertical inflection points of the pipeline to prevent pipeline displacement caused by internal water impact, system external force or temperature changes, provide support for the pipeline, prevent the pipeline from overturning and twisting, and ensure the safe operation of the pipeline. This leads to a conflict between the location of the anchor and the drainage valve well at the lowest point of the pipeline.

[0003] The priority in engineering projects is often the safe operation of the system. Therefore, a pier is set at the lowest point of the pipeline, and a drainage system is set up 3-5m away from it, including a drainage tee pier and a drainage valve well. This means that in operation management, when the pipeline system needs to be repaired, only the pipe section above the drainage valve installation elevation can drain water, and the pipe section below the drainage valve installation elevation will always store water. When the water pipe is running again, the pressurized water flow collides with the water that has not been emptied at the lowest point of the pipeline, forming a violent fluctuation of the pressure flow state in the pipe in a short time, which is easy to cause water hammer damage to the pipeline system. In particular, in northern my country, especially for intermittently operating pipeline systems, if the pipeline cannot be completely emptied in winter, it will cause damage to the pipeline at the lowest point of the pipeline as the water in the pipe freezes and thaws. Utility Model Content

[0004] The purpose of the utility model is to provide a anchor structure in a water supply pipeline that can take into account the installation of a drainage system. The anchor structure proposed by the utility model can ensure that the pipeline can be completely drained during inspection and maintenance. At the same time, the application of the anchor structure has the effect of reducing the project area and project volume, thereby saving project investment and shortening the construction period.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A anchor structure in a water pipeline that can take into account the installation of a drainage system, including an anchor and a drainage system that are simultaneously arranged at the lowest point of a main water pipe. The main water pipe is connected to the drainage system so that the main water pipe can be completely drained during inspection and maintenance. The anchor is arranged around the main water pipe and the drainage system to strengthen and fix the main water pipe and the drainage system.

[0007] Preferably, the drainage system includes a drainage pipe, which passes through the valve well chamber of the drainage valve well. A drainage control system is arranged on the drainage pipe in the valve well chamber, which is connected to the drainage pipe by arranging a bottom tee at the lowest point of the main water pipe. The main water pipe, the bottom tee, the drainage pipe and the drainage valve well are surrounded by the anchor pier.

[0008] Preferably, the drain valve well includes a valve well wall, a valve well bottom plate and a valve well cover plate. On one side of the drain pipe in the town pier, a part of the structural surface of the town pier is utilized, and the valve well wall, the valve well bottom plate and the valve well cover plate on the top are adopted to form a valve well chamber. A well cover is arranged on the valve well cover plate, and a ladder is arranged on the valve well wall.

[0009] Preferably, the water discharge control system comprises a water discharge valve and a limit expansion joint, the water discharge valve and the limit expansion joint are detachably connected, and both ends of the water discharge valve and the limit expansion joint are detachably connected to the water discharge pipe respectively.

[0010] Preferably, a 20 mm thick elastic cushion layer is provided between the anchor pier and the main water supply pipe, and a 20 mm thick elastic cushion layer is provided between the anchor pier and the drain pipe.

[0011] The beneficial effects of the utility model are:

[0012] 1) The application can take into account the installation of the water discharge system, and can set up the water discharge system and the pier at the lowest point of the pipeline at the same time, thus avoiding the adverse effects of incomplete discharge in the pipe on the operation of the pipeline system.

[0013] 2) The application can take into account the installation of the drainage system's anchor pier structure. Compared with the traditional approach, the drainage system's anchor pier and the lowest point anchor pier structure can be combined, thereby reducing the project's land area.

[0014] 3) The anchor pier structure in this application can take into account the installation of the drainage system. Compared with traditional methods, it greatly reduces the amount of concrete and steel bars, which is conducive to saving project investment.

[0015] 4) The application also takes into account the installation of the drainage system. Compared with the traditional approach, the engineering objects are greatly integrated, the construction process is simplified, and the construction period can be shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view schematic diagram of the present application cut at the center of the tube.

[0017] Figure 2 This application Figure 1 Schematic diagram of the cross section at AA in the middle.

[0018] Figure 3It is a schematic diagram of the traditional practice corresponding to this application.

[0019] Figure numerals: 1. main water supply pipe; 2. bottom tee; 3. 20mm thick elastic cushion; 4. valve well wall; 5. anchor pier; 6. ladder; 7. drain valve; 8. limited expansion joint; 9. valve pier; 10. concrete cushion; 11. wall casing; 12. drain pipe; 13. manhole cover; 14. valve well cover; 15. valve well bottom plate; 16. flange; G1, G2, G3 and G4 are pipeline nodes of traditional main water supply pipe; F1 is traditional drain valve well; X1 is node on drain pipe; i is slope direction. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the utility model.

[0021] In water delivery projects, according to the requirements of pipeline system operation and overhaul and maintenance, it is necessary to set up a drainage system at the lowest point of the pipeline to ensure that the water in the pipeline can be drained in the event of overhaul accidents. For projects with high water pressure in the pipeline, anchors need to be set at the inflection points of the pipeline to ensure the safe operation of the pipeline.

[0022] In order to avoid the conflict between the installation of the drainage system and the location of the anchor pier at the lowest point of the pipeline, the traditional practice in the project is as follows: Figure 3 As shown. In the figure, i is the slope direction, G1, G3 and G4 are the pipeline nodes of the traditional main water supply pipeline, and pipeline anchors need to be set at these three locations. According to the slope relationship of the pipeline layout, it can be seen that G3 is the lowest point of the pipe section. The pipeline drainage system includes a bottom tee, a drainage pipe, a drainage control system and a drainage valve well. Since a anchor is set at G3, the bottom tee used to connect the drainage pipe in the drainage system is set at the appropriate G2 position upstream of G3, and an anchor protection is added at the G2 position. A traditional drainage valve well F1 is set on the drainage branch pipe, and the drainage control system is set inside the valve well. X1 is a node on the drainage pipe.

[0023] In order to solve the problem that the position of the drain valve well at the lowest point in the long-distance water pipeline conflicts with the setting position of the pipeline anchor pier in traditional practices, resulting in incomplete discharge in the long-distance water pipeline, the present application proposes a anchor pier structure in the water pipeline that can take into account the installation of the drain system. The optimized anchor pier structure (anchor pier 5) combines the two parts of the installation of the drain system at the lowest point of the pipeline and the setting of the anchor pier in traditional practices.

[0024] like Figure 1-2As shown, a pier structure in a water pipeline that can take into account the installation of a drainage system includes a pier 5 and a drainage system that are simultaneously arranged at the lowest point of a main water pipe 1. The main water pipe 1 is connected to the drainage system so that the main water pipe 1 can be completely drained during inspection and maintenance. The pier 5 is arranged around the main water pipe 1 and the drainage system to strengthen and fix the main water pipe 1 and the drainage system.

[0025] The drainage system includes a drainage pipe 12, a drainage valve well, and a drainage control system.

[0026] The lowest point of the main water pipe 1 is connected to the drain pipe 12 by welding the bottom tee 2, the drain pipe 12 passes through the valve well chamber of the drain valve well, and the drain control system is installed on the drain pipe 12 in the valve well chamber. The main water pipe 1, the bottom tee 2, the drain pipe 12 and the drain valve well are reinforced and fixed by anchor piers 5.

[0027] When designing the anchor pier 5, structural calculations are required to ensure that the weight, overall force and strength of the anchor pier 5 can meet the requirements of pipeline operation.

[0028] The anchor pier 5 is designed with plain concrete combined with surface temperature reinforcement (reinforcement can also be added according to different engineering stresses). A 20 mm thick elastic cushion layer 3 is arranged between the anchor pier 5 and the main water pipe 1 to protect the main water pipe 1. A 20 mm thick elastic cushion layer 3 is also arranged between the anchor pier 5 and the drain pipe 12 to protect the drain pipe 12. Concrete cushion layers 10 are provided at the bottom of the anchor pier 5 and the drain valve well.

[0029] The drain valve well is a reinforced concrete structure, including a valve well wall 4, a valve well bottom plate 15, a valve well cover plate 14, a well cover 13 and a ladder 6.

[0030] On one side of the drain pipe 12 in the anchor pier 5, a part of the structural surface of the anchor pier 5 is used to form a valve well chamber by using reinforced concrete valve well wall 4, valve well bottom plate 15 and top valve well cover plate 14. A maintenance hole is opened on the valve well cover plate 14, and a well cover 13 is set to protect the maintenance hole. A maintenance ladder 6 is set on the valve well wall 4 to facilitate the maintenance of the valve. At the intersection of the valve well wall 4, the valve well bottom plate 15 and the valve well cover plate 14 with the anchor pier 5, sufficient length of overlapping steel bars must be set to ensure that the valve well chamber structure and the anchor pier 5 structure are better integrated.

[0031] The water discharge control system comprises a valve support 9, a water discharge valve 7 and a limit expansion joint 8. The water discharge valve 7 and the limit expansion joint 8 are connected by a flange 16, and both ends of the water discharge valve 7 and the limit expansion joint 8 are respectively connected to the water discharge pipe 12 by flanges 16.

[0032] A wall sleeve 11 is provided between the drain pipe 12 and the valve well wall 4 .

[0033] A pier structure that can take into account the drain valve well in the water pipeline can be adjusted according to the project terrain, the buried depth of the main water pipeline 1, the internal water pressure of the main water pipeline 1 and the laying height of the drain pipe 12 after structural calculation. Figure 2 Set the town pier 5 with the same height as the top of the drain valve well (as shown) or different bottoms; Figure 2 As shown) or different heights; the drain valve well uses the two structural surfaces of the town pier 5 to form a valve well chamber (such as Figure 2 As shown) or using three sides or even embedded in the pier 5, etc., all belong to the scope of this application.

[0034] This application not only solves the problem that the drainage system cannot be set at the lowest point in the pipeline in traditional practices, resulting in incomplete drainage in long-distance water pipelines. At the same time, compared with traditional practices, it greatly reduces the amount of engineering work, saves engineering investment, and reduces the permanent area occupied by the project. It also greatly simplifies the process during construction, thereby shortening the construction period. For large-scale water pipeline projects, as the number of drainage points to be set increases, the advantage of a pier structure in the water pipeline proposed in this application that can take into account the drainage valve well in engineering applications is more obvious.

[0035] The above are all embodiments of the present application. Any equivalent changes made through the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A anchor structure in a water pipeline that can be used for installation of a drainage system, characterized in that: It includes an anchor pier and a drainage system arranged at the lowest point of a main water pipe. The main water pipe is connected to the drainage system so that the main water pipe can be completely drained during inspection and maintenance. The anchor pier is arranged around the main water pipe and the drainage system to strengthen and fix the main water pipe and the drainage system.

2. The anchor structure for the water pipeline capable of being installed with the drainage system according to claim 1, characterized in that: The drainage system includes a drainage pipe, which passes through the valve well chamber of the drainage valve well. A drainage control system is arranged on the drainage pipe in the valve well chamber. A bottom tee is arranged at the lowest point of the main water pipe to be connected to the drainage pipe. The main water pipe, the bottom tee, the drainage pipe and the drainage valve well are surrounded by the anchor pier.

3. The anchor structure for the water pipeline capable of being installed with the drainage system according to claim 2, characterized in that: The drain valve well includes a valve well wall, a valve well bottom plate and a valve well cover plate. On one side of the drain pipe in the town pier, a part of the structural surface of the town pier is utilized, and the valve well wall, the valve well bottom plate and the valve well cover plate on the top are adopted to form a valve well chamber. A well cover is arranged on the valve well cover plate, and a ladder is arranged on the valve well wall.

4. The anchor structure for the water pipeline capable of being installed with the drainage system according to claim 2, characterized in that: The water discharge control system comprises a water discharge valve and a limit expansion joint, the water discharge valve and the limit expansion joint are detachably connected, and both ends of the water discharge valve and the limit expansion joint are detachably connected to the water discharge pipe respectively.

5. The anchor structure for the water pipeline capable of being installed with the drainage system according to claim 2, characterized in that: A 20 mm thick elastic cushion layer is provided between the anchor pier and the main water supply pipe, and a 20 mm thick elastic cushion layer is provided between the anchor pier and the drain pipe.

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