Large-diameter pipeline exhaust valve with access hole
By designing a large-diameter pipeline exhaust valve with maintenance holes, the problem of frequent opening and closing of exhaust valves is solved, the equipment life is extended, the maintenance process is simplified, and the maintenance efficiency and safety are improved.
Patent Information
- Application Number
- CN202421684152.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In large-diameter piping systems, the frequent opening and closing of exhaust valves leads to a shortening of equipment life, increasing maintenance requirements, and difficult maintenance.
Design a large-diameter pipeline exhaust valve with inspection holes, including tee pipes, flanges, blind plate flanges, steel short pipes, gate valves and exhaust valves. By increasing the branch pipe diameter and gas storage space, the opening frequency of the exhaust valve is reduced, and the maintenance process is simplified through flange connection and overall removal design.
It extends the service life of the exhaust valve, reduces maintenance needs and related costs, improves the convenience and efficiency of maintenance, and reduces the cost and difficulty of maintenance.
Smart Images
Figure CN222760502U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline exhaust, in particular to a large-diameter pipeline exhaust valve with an inspection hole. Background Art
[0002] Pipeline exhaust refers to a series of operations performed in the pipeline system to remove the gas in the pipeline to ensure the normal operation of the pipeline system and the smooth flow of the fluid. The diameter of the exhaust valve is 1 / 8 to 1 / 12 of the main pipe diameter according to the specification requirements, and the diameter of the tee branch pipe is the same as the diameter of the exhaust valve; for large-diameter (DN2000 and above) water pipelines, the total gas content of the water in the pipe is relatively large, the gas gathering space in the main pipe is small, the exhaust valve is frequently exhausted, and the diameter of the tee branch pipe of the exhaust valve is quite different from the main pipe diameter, which makes it inconvenient to manufacture and install; when there is a requirement for maintenance access during pipeline operation, a blind flange is set for the entry tee branch pipe, and a valve well is required to be specially set up for the maintenance access hole. Summary of the invention
[0003] The utility model provides a large-diameter pipeline exhaust valve with an inspection hole, which solves the above-mentioned technical problems.
[0004] The utility model solves the above-mentioned technical problems as follows:
[0005] A large-diameter pipeline exhaust valve with an inspection hole comprises a tee, a flange, a blind flange, a steel short pipe, a gate valve and an exhaust valve. The top of the upper branch pipe of the tee is provided with a flange, the upper branch pipe of the tee is installed with a blind flange through the flange, a steel short pipe is installed above the flange through the blind flange, and a gate valve and an exhaust valve are installed above the steel short pipe in sequence.
[0006] On the basis of the above technical solution, the present invention can also be improved as follows.
[0007] Furthermore, the diameter of the branch pipe on which the flange is installed on the tee pipe is not less than DN800.
[0008] The beneficial effects of adopting the above further scheme are:
[0009] The branch pipe diameter is not less than DN800, which provides a larger pipe cross-sectional area, thereby increasing the gas storage space inside the pipe. This can accommodate more air, reduce the number of frequent opening and closing of the exhaust valve, and extend the service life of the exhaust valve. Due to the increase in the air storage space, the pressure fluctuation in the system is reduced, and the frequency of opening and closing of the exhaust valve is also reduced. Reducing frequent operations not only helps to extend the life of the equipment, but also reduces maintenance requirements and related costs. At the same time, the diameter of the branch pipe with a flange installed on the tee pipe is not less than DN800. The larger branch pipe provides more space for operators to inspect and maintain. The larger internal space of the pipeline makes it easier for maintenance tools and personnel to enter, reducing the difficulty and time of maintenance.
[0010] Furthermore, the flange plate and the blind flange are adapted to the size of the branch pipe of the tee pipe.
[0011] The beneficial effects of adopting the above further scheme are:
[0012] The flange and blind flange are matched to the branch pipe size of the tee pipe, ensuring a tight connection between the components. This design reduces the gap and instability of the connection parts, thereby improving the overall stability and safety of the system.
[0013] Furthermore, the branch pipe at the top end of the tee pipe is used as an inspection port after the blind flange, the steel short pipe, the gate valve and the exhaust valve are completely removed.
[0014] The beneficial effects of adopting the above further scheme are:
[0015] The blind flange, steel short pipe, gate valve and exhaust valve connected by flange can be removed as a whole to quickly form an inspection port. This makes the inspection inside the pipeline more convenient and faster, saving time and manpower. This design uses existing pipes and components to form an inspection port, without the need to set up a special inspection port or valve well, simplifying the structure of the pipeline system and reducing design and construction costs.
[0016] Furthermore, the blind flange is provided with a through hole matching the diameter of the steel short pipe.
[0017] The beneficial effects of adopting the above further scheme are:
[0018] The through hole and the short tube size match each other, ensuring uniform stress distribution at the connection, reducing stress concentration, lowering the risk of damage to the connection parts, and improving the reliability and service life of the system.
[0019] Furthermore, the steel short pipe, gate valve and exhaust valve are all connected by flanges.
[0020] The beneficial effects of adopting the above further scheme are:
[0021] The flange connection allows for quick installation and removal of steel short pipes, gate valves and exhaust valves, which simplifies the construction and maintenance process and reduces installation time and labor costs. When maintenance or overhaul is required, the flange connection facilitates quick removal of components, simplifies the maintenance process and reduces system downtime.
[0022] Furthermore, the steel short pipe is a straight pipe or a three-way pipe.
[0023] The beneficial effects of adopting the above further scheme are:
[0024] According to the specific pipeline layout and functional requirements, you can choose to use straight pipes or tees, which increases the flexibility and adaptability of the design. Choosing straight pipes or tees as needed can arrange pipeline inspection and maintenance more flexibly and improve operational efficiency. When using tees, you can easily add sampling or exhaust devices to the pipeline system, simplifying daily maintenance and monitoring operations.
[0025] Furthermore, when the steel short pipe adopts a three-way pipe, the water quality is sampled through the steel short pipe.
[0026] The beneficial effects of adopting the above further scheme are:
[0027] Sampling directly on the steel short pipe simplifies the water quality sampling process, eliminating the need to install additional special sampling devices, saving time and costs. Operators can quickly complete sampling without shutting down the main pipeline or affecting normal operation, improving the efficiency and convenience of sampling work.
[0028] The beneficial effects of the utility model are:
[0029] The top of the tee pipe in the design is equipped with enough space, which is not only a part of the pipeline, but also has a gas storage function. When gas accumulates in the pipeline, this part of the space can temporarily store the gas, thereby reducing the exhaust frequency of the exhaust valve. This not only helps to extend the service life of the exhaust valve, but also reduces the energy consumption and noise caused by frequent exhaust. The exhaust valve can quickly and effectively exhaust the gas in the pipeline to prevent gas accumulation in the pipeline to form air blockage. At the same time, when negative pressure occurs in the pipeline, the exhaust valve can also inhale air in time to prevent the pipeline from vibrating or rupturing due to negative pressure. This two-way function ensures the normal operation of the pipeline system.
[0030] After removing the blind flange, steel short pipe, gate valve and exhaust valve, the branch pipe at the top of the tee can be used as an inspection port for maintenance personnel to enter and exit. This design greatly improves the convenience of internal pipeline maintenance, without the need for additional excavation and construction of maintenance access valve wells, reducing maintenance costs and difficulties.
[0031] When the steel short pipe adopts a three-way pipe design, a sampling point can be set directly on the pipe. This design not only facilitates the real-time monitoring of the water quality in the pipe, but also avoids the risk of leakage caused by setting up additional sampling points.
[0032] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0034] In the attached picture:
[0035] Figure 1 This is a schematic diagram of the axial side appearance of the utility model;
[0036] Figure 2 It is a schematic diagram of the main appearance of the utility model.
[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0038] 1. Tee pipe; 2. Flange; 3. Blind flange; 4. Steel short pipe; 5. Gate valve; 6. Exhaust valve. DETAILED DESCRIPTION
[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] See also Figure 1 to Figure 2 As shown, the embodiment provided by the utility model.
[0041] Example 1
[0042] A large-diameter pipeline exhaust valve with an inspection hole includes a tee 1, a flange 2, a blind flange 3, a steel short pipe 4, a gate valve 5 and an exhaust valve 6. The top of the upper branch of the tee 1 is provided with a flange 2. The diameter of the branch pipe of the tee 1 with the flange 2 is not less than DN800, and there is a certain gas storage space. The frequency of exhaust and intake of the exhaust valve 6 is reduced, which is beneficial to prolonging the service life of the exhaust valve 6. The diameter of the branch pipe is not less than DN800, providing a larger pipeline cross-sectional area, thereby increasing the gas storage space inside the pipeline. In this way, more air or gas can be accommodated, the number of frequent opening and closing of the exhaust valve 6 is reduced, and the service life of the exhaust valve 6 is extended. Due to the increase in the gas storage space, the pressure fluctuation in the system is reduced, and the frequency of opening and closing of the exhaust valve 6 is also reduced. Reducing frequent operations is not only conducive to prolonging the life of the equipment, but also reduces maintenance requirements and related costs. At the same time, the branch pipe with a larger diameter provides more sufficient space, which is convenient for operators to inspect and maintain. The larger internal space of the pipeline makes it easier for maintenance tools and personnel to enter, reducing the difficulty and time of maintenance. The upper branch of the tee pipe 1 is installed with a blind flange 3 through a flange 2. The flange 2 and the blind flange 3 are adapted to the branch size of the tee pipe 1, ensuring a tight connection between the components. This design reduces the gap and instability of the connection part, thereby improving the overall stability and safety of the system. A steel short pipe 4 is installed above the flange 2 through a blind flange 3. The steel short pipe 4 adopts a straight pipe or a tee pipe. According to the specific pipeline layout and functional requirements, you can choose to use a straight pipe or a tee pipe, which increases the flexibility and adaptability of the design. Choosing a straight pipe or a tee pipe as needed can arrange the inspection and maintenance of the pipeline more flexibly and improve operational efficiency. When using a tee, it is convenient to add a sampling or exhaust device to the pipeline system, simplifying daily maintenance and monitoring operations. When the steel short pipe 4 adopts a tee, the water quality is sampled through the steel short pipe 4, and the sampling is performed directly on the steel short pipe 4, which simplifies the water quality sampling process, and there is no need to install a special sampling device, saving time and cost. The operator can quickly complete the sampling without closing the main pipeline or affecting normal operation, which improves the efficiency and convenience of the sampling work. The blind flange 3 is provided with a through hole that matches the diameter of the steel short pipe 4. The through hole matches the size of the short pipe, ensuring uniform stress distribution at the connection, reducing stress concentration, reducing the risk of damage to the connection part, and improving the reliability and service life of the system. The gate valve 5 and the exhaust valve 6 are installed on the top of the steel short pipe 4 in sequence. The steel short pipe 4, the gate valve 5 and the exhaust valve 6 are all connected by flanges. The flange connection method allows the steel short pipe 4, the gate valve 5 and the exhaust valve 6 to be quickly installed and disassembled, simplifying the construction and maintenance process, and reducing installation time and labor costs.When maintenance or overhaul is required, the flange connection facilitates the quick disassembly of the components, simplifies the maintenance process, and reduces system downtime. The branch pipe at the top of the tee pipe 1 is used as an inspection port by removing the blind flange 3, steel short pipe 4, gate valve 5 and exhaust valve 6 as a whole, which is convenient for maintenance personnel to enter the pipeline. There is no need to set up a separate maintenance entry valve well. The blind flange 3, steel short pipe 4, gate valve 5 and exhaust valve 6 connected by the flange can be removed as a whole to quickly form an inspection port. This makes the maintenance inside the pipeline more convenient and quick, saving time and manpower. This design uses existing pipelines and components to form an inspection port, without the need to set up a special inspection port or valve well, simplifies the structure of the pipeline system, and reduces design and construction costs.
[0043] A large-diameter pipeline exhaust valve with an inspection hole based on Example 1 is used:
[0044] The top of the three-way pipe 1 in the design is provided with sufficient space, which not only serves as a part of the pipeline, but also has a gas storage function. When gas accumulates in the pipeline, this part of the space can temporarily store the gas, thereby reducing the exhaust frequency of the exhaust valve 6. This not only helps to extend the service life of the exhaust valve 6, but also reduces the energy consumption and noise caused by frequent exhaust. The exhaust valve 6 can quickly and effectively exhaust the gas in the pipeline to prevent the gas from accumulating in the pipeline to form air blockage. At the same time, when negative pressure appears in the pipeline, the exhaust valve 6 can also inhale air in time to prevent the pipeline from vibrating or breaking due to negative pressure. This two-way function ensures the normal operation of the pipeline system.
[0045] When the steel short pipe 4 adopts a three-way pipe design, a sampling point can be directly set on the pipeline. This design not only facilitates real-time monitoring of water quality in the pipeline, but also avoids the risk of leakage caused by setting additional sampling points.
[0046] The branch pipe at the top of the tee pipe 1 can be used as an inspection port for maintenance personnel to enter and exit after the blind flange 3, steel short pipe 4, gate valve 5 and exhaust valve 6 are removed as a whole. This design greatly improves the convenience of internal pipeline maintenance, without the need for additional excavation and construction of maintenance access valve wells, reducing maintenance costs and difficulties.
[0047] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.
Claims
1. A large-diameter pipeline exhaust valve with an inspection hole, characterized in that: The invention comprises a tee pipe (1), a flange (2), a blind flange (3), a steel short pipe (4), a gate valve (5) and an exhaust valve (6), wherein the top end of the upper branch pipe of the tee pipe (1) is provided with a flange (2), the upper branch pipe of the tee pipe (1) is provided with a blind flange (3) via the flange (2), a steel short pipe (4) is provided above the flange (2) via the blind flange (3), and a gate valve (5) and an exhaust valve (6) are provided above the steel short pipe (4) in sequence.
2. A large-diameter pipeline exhaust valve with an inspection hole according to claim 1, characterized in that: The diameter of the branch pipe on which the flange (2) is installed on the tee pipe (1) is not less than DN800.
3. A large-diameter pipeline exhaust valve with an inspection hole according to claim 2, characterized in that: The flange (2) and the blind flange (3) are adapted to the size of the branch pipe of the tee pipe (1).
4. A large-diameter pipeline exhaust valve with an inspection hole according to claim 1, characterized in that: The branch pipe at the top end of the tee pipe (1) is used as an inspection port after the blind flange (3), the steel short pipe (4), the gate valve (5) and the exhaust valve (6) are removed as a whole.
5. A large-diameter pipeline exhaust valve with an inspection hole according to claim 4, characterized in that: The blind flange (3) is provided with a through hole matching the diameter of the steel short pipe (4).
6. A large-diameter pipeline exhaust valve with an inspection hole according to claim 4, characterized in that: The steel short pipe (4), the gate valve (5) and the exhaust valve (6) are all connected by flanges.
7. A large-diameter pipeline exhaust valve with an inspection hole according to claim 1, characterized in that: The steel short pipe (4) is a straight pipe or a three-way pipe.
8. A large-diameter pipeline exhaust valve with an inspection hole according to claim 7, characterized in that: When the steel short pipe (4) is a three-way pipe, water quality is sampled through the steel short pipe (4).