Water pipeline maintenance and exhaust structure

Abstract

This application relates to a water transmission pipeline maintenance and venting structure. This application is applicable to the field of water conservancy and hydropower engineering technology. The technical problem to be solved by this application is: to provide a water transmission pipeline maintenance and venting structure. The technical solution adopted in this application is: a water transmission pipeline maintenance and venting structure, comprising: multiple connecting branch pipes, disposed on the outer wall of the water transmission pipeline, the connecting branch pipes correspondingly connected to the water transmission pipeline, an inlet hole formed at the end of the connecting branch pipe away from the water transmission pipeline, and a passageway for personnel to enter the water transmission pipeline formed inside the connecting branch pipe; a cover plate, detachably disposed on the top of the connecting branch pipe, used to seal the inlet hole; and an venting structure, penetrating the side wall of the connecting branch pipe and connected to the passageway, used to vent air from the inside of the pipeline during operation.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering technology, and in particular to a water transmission pipeline maintenance and venting structure. Background Technology

[0002] In long-distance water transmission projects, due to the long length of the pipeline, some pipe sections can only be welded on one side during installation, making welding at internal connections difficult. Furthermore, the limited number of inspection valves and access ports available for pipeline maintenance results in time-consuming and labor-intensive work. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a water pipeline maintenance and venting structure to address the above-mentioned problems.

[0004] The technical solution adopted in this utility model is: a water pipeline maintenance and venting structure, comprising:

[0005] Multiple connecting branch pipes are located on the outer wall of the water supply pipeline. The connecting branch pipes are connected to the water supply pipeline. The end of the connecting branch pipe away from the water supply pipeline forms an inlet hole. The interior of the connecting branch pipe forms a passageway that allows personnel to enter the water supply pipeline.

[0006] A cover plate, detachably mounted on the top of the connecting branch pipe, is used to seal the manhole;

[0007] The venting structure is installed through the side wall of the connecting branch pipe and connected to the passageway. It is used to vent air from the inside of the water pipeline during operation.

[0008] By employing the aforementioned technical methods, multiple connecting branch pipes are added to the outer wall of the water pipeline. These connecting branch pipes connect the water pipeline, forming a passageway large enough for personnel to pass through. The connecting branch pipes are opened and closed by cover plates, allowing operators to enter the water pipeline through the connecting branch pipes to complete initial welding or subsequent maintenance work. Simultaneously, the venting structure on the side wall of the connecting branch pipes allows for venting during pipeline operation, enabling the connecting branch pipes to function as both maintenance and venting channels, thus enhancing their effectiveness.

[0009] In some embodiments, the exhaust structure includes an exhaust branch pipe and an exhaust valve. The exhaust branch pipe is disposed on the side wall of the connecting branch pipe and is connected to the connecting branch pipe through it. An exhaust valve is detachably installed at the end of the exhaust branch pipe away from the connecting branch pipe.

[0010] In some embodiments, when the water supply pipeline is in the water pressure test stage, the cover plate is removed and replaced with a pressurized water injection device, which can inject water into the water supply pipeline and pressurize it through a connecting branch pipe.

[0011] When the water pipeline is under maintenance and venting, the cover plate is removed and replaced with a pumping and drainage device, which can pump out the water accumulated in the water pipeline through the connecting branch pipe.

[0012] In some embodiments, the connecting branch pipe is located in a section of the water supply pipe within the air vent valve chamber.

[0013] In some embodiments, the cover plate is a flange, which is connected to the end of the connecting branch pipe.

[0014] The beneficial effects of this utility model are:

[0015] 1. By adding multiple connecting branch pipes to the water supply pipeline, which are sealed with cover plates, welding can be carried out promptly at the internal joints between water supply pipelines when welding is required. This allows access through the connecting branch pipes to the pipeline, ensuring welding quality while accelerating the pipeline construction progress. Later, when pipeline maintenance is needed, the same access through the connecting branch pipes allows for easy inspection of the affected section, reducing maintenance difficulty and time, and improving efficiency. Furthermore, the connecting branch pipes are equipped with venting structures on their sidewalls, enabling air venting during pipeline operation and adding versatility as a venting channel. Attached Figure Description

[0016] Figure 1 This is a cross-sectional structural diagram of this application.

[0017] Figure 2 This is a schematic diagram of the planar structure of this application.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Air vent chamber; 2. Water supply pipe; 3. Connecting branch pipe; 4. Cover plate; 5. Air vent branch pipe; 6. Air vent valve.

[0020] This specification includes references to "one embodiment" or "implementation". The use of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. Specific features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure.

[0021] The term "comprising" is open-ended. As used in the appended claims, it does not exclude additional structures or steps. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below with reference to specific embodiments.

[0023] Combination Figure 1 and Figure 2 As shown, this embodiment is a water pipeline maintenance and venting structure, including multiple connecting branch pipes 3, cover plates 4, and a venting structure. Connecting branch pipes 3 are spaced at intervals on the outer wall of the water pipeline 2, and are correspondingly connected to the water pipeline 2. An inlet is formed at the end of the connecting branch pipe 3 furthest from the water pipeline 2, and a passageway is formed inside the connecting branch pipe 3 to allow personnel to enter the water pipeline 2. A cover plate 4 is detachably connected to the end of the connecting branch pipe 3 furthest from the water pipeline 2, and the cover plate 4 is used to seal the inlet. A venting structure is provided through the connecting branch pipe 3, and is connected to the passageway. The venting structure is used to vent air from the inside of the water pipeline 2 during operation.

[0024] In some implementations, the exhaust structure includes an exhaust branch pipe 5 and an exhaust valve 6. The exhaust branch pipe 5 is located on the side wall of the connecting branch pipe 3 and is connected to the connecting branch pipe 3. The exhaust branch pipe 5 is detachably installed with the exhaust valve 6 at the end of the exhaust branch pipe 5 away from the connecting branch pipe 3.

[0025] Furthermore, in this embodiment, the cover plate 4 is a flange, which is connected to the end of the connecting branch pipe.

[0026] Furthermore, the connecting branch pipe 3 is located in the section of the water supply pipe 2 within the air vent chamber 1.

[0027] By arranging the connecting branch pipe 3 in a section of the water supply pipeline 2 located in the air vent chamber 1, not only is the original maintenance channel function realized, but the overall layout of the pipeline is also optimized, making the entire structure more compact and efficient.

[0028] Furthermore, when the water supply pipeline 2 is in the water pressure test stage, the cover plate 4 can be removed and replaced with a pressurized water injection device, which can inject water into the water supply pipeline 2 through the connecting branch pipe 3 to pressurize it. When the water supply pipeline 2 is in the maintenance and venting stage, the cover plate 4 can be removed and replaced with a drainage device, which can pump out the water accumulated in the water supply pipeline 2 through the connecting branch pipe 3.

[0029] Different functional components can be flexibly replaced at different working stages, such as the hydrostatic test stage or the maintenance venting stage, improving the versatility and adaptability of the structure. During the hydrostatic test of water pipeline 2, pressurized water injection equipment can effectively conduct pressure tests, accelerating the hydrostatic test and project progress. During the maintenance venting stage, the cover plate 4 can be removed, and drainage equipment can be used to quickly drain the water accumulated inside the pipeline, reducing venting time and improving work efficiency and safety. During the operation of water pipeline 2, the connecting branch pipe 3 can cooperate to form an air venting channel. The larger pipe diameter expands the air venting area, which is beneficial for air venting during operation, optimizing the air venting effect. Furthermore, when achieving the air venting function, it is not necessary to disassemble the air venting valve 6.

[0030] The implementation principle of a water pipeline maintenance and venting structure is as follows:

[0031] By connecting the branch pipe 3 to the water supply pipeline 2, the passage formed by the branch pipe 3 facilitates the entry of construction personnel into the water supply pipeline 2. This not only provides a working surface for double-sided welding during the pipeline construction phase, but also increases the maintenance working surface during the maintenance phase. It provides maintenance personnel with a more convenient way to enter the interior of the water supply pipeline 2, thereby greatly reducing the difficulty and time of maintenance work, improving work efficiency, and solving the problem of time-consuming and labor-intensive maintenance work.

[0032] Meanwhile, an exhaust branch pipe 5 and an exhaust valve 6 are added to the side wall of the connecting branch pipe 3, so that the connecting branch pipe 3 not only serves as a construction passage and maintenance passage, but also integrates the function of an exhaust passage. The exhaust, water pumping, and access for maintenance are arranged in a combined manner without affecting each other, which increases the multifunctionality of the structure and improves the overall utilization rate and economic benefits of the structure.

[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A water pipeline maintenance and venting structure, characterized in that, include: Multiple connecting branch pipes (3) are located on the outer wall of the water supply pipe (2). The connecting branch pipes (3) are connected to the water supply pipe (2). The end of the connecting branch pipe (3) away from the water supply pipe (2) forms an inlet hole. The interior of the connecting branch pipe (3) forms a passageway that allows personnel to enter the water supply pipe (2). The cover plate (4) is detachably installed on the top of the connecting branch pipe (3) to block the inlet hole; The exhaust structure is installed on the side wall of the connecting branch pipe (3) and connected to the passageway. It is used to exhaust the air inside the water pipeline (2) during operation.

2. The water pipeline maintenance and venting structure according to claim 1, characterized in that: The exhaust structure includes an exhaust branch pipe (5) and an exhaust valve (6). The exhaust branch pipe (5) is located on the side wall of the connecting branch pipe (3). The exhaust branch pipe (5) and the connecting branch pipe (3) are connected through each other. The exhaust valve (6) is detachably installed at the end of the exhaust branch pipe (5) away from the connecting branch pipe (3).

3. The water pipeline maintenance and venting structure according to claim 2, characterized in that: When the water supply pipeline (2) is in the water pressure test stage, the cover plate (4) is removed and replaced with a pressurized water injection device. The pressurized water injection device can inject water into the water supply pipeline (2) through the connecting branch pipe (3) to pressurize it. When the water supply pipeline (2) is under maintenance and venting, the cover plate (4) is removed and replaced with a pumping and drainage device. The pumping and drainage device can pump out the water accumulated in the water supply pipeline (2) through the connecting branch pipe (3).

4. The water pipeline maintenance and venting structure according to claim 1, characterized in that: The connecting branch pipe (3) is located in the section of the water supply pipe (2) inside the air vent chamber (1).

5. The water pipeline maintenance and venting structure according to claim 1, characterized in that: The cover plate (4) is made of a flange, which is connected to the end of the connecting branch pipe (3).

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