Pressure regulating valve for gas pipeline

Abstract

The pressure regulating valve comprises a splicing pipe, an electric adjusting device is arranged at the upper end of the splicing pipe, a gas inlet flange plate connector is arranged at the lower end of the splicing pipe, a pressure relief bolt is arranged at the lower end of the gas inlet flange plate connector, a T-shaped flow dividing pipe is arranged on one side of the splicing pipe, and a first flange plate flow dividing opening is formed in one side of the T-shaped flow dividing pipe. The electric adjusting device has the advantages that the electric adjusting device controls accurate adjustment of the flow dividing valve head through the rotating motor, an air flow channel in the pipeline can be adjusted in real time, it is ensured that the gas pressure of the gas pipeline is stabilized within a set range, and especially when the load changes or the environmental condition fluctuates, the flow dividing valve head can be adjusted in real time. The pressure regulating valve can keep stable operation of the system, and the stability and reliability of the whole gas pipeline system are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas pipelines, and in particular to a pressure regulating valve for gas pipelines. Background Art

[0002] With the continuous advancement of the urbanization process and the increasing demand for gas consumption, the gas pipeline system plays a crucial role in the modern urban energy supply. The gas pipeline provides extensive energy support by transporting natural gas or other combustible gases from the production point to the end users. However, with the change of the usage environment (such as load fluctuations, temperature changes, etc.) and the growth of the service life of the gas pipeline, how to ensure the stable pressure and smooth flow of the gas in the pipeline has become a major challenge in the design and operation of gas pipelines. In the gas pipeline, the stability of the pressure directly affects the safe operation of the pipeline. Excessive or too low gas pressure will not only damage the pipeline equipment, but may even lead to serious safety accidents such as leakage and explosion. Therefore, in order to ensure the normal operation of the pipeline, a pressure regulating valve needs to be set in the pipeline system to timely adjust and stabilize the gas pressure in the pipeline and ensure that the gas always remains within a suitable pressure range during the transportation process. Summary of the Invention

[0003] The purpose of the present invention is that the electric regulating device controls the rotating connecting rod through the rotating motor, and then adjusts the position of the shunt valve head to accurately control the size of the air flow channel and achieve accurate gas pressure regulation. At the same time, the pressure valve head can timely feedback the pressure situation in the pipeline to further improve the regulation accuracy and other problems.

[0004] The present invention realizes the above purpose through the following technical solutions:

[0005] A pressure regulating valve for a gas pipeline includes a splicing pipe. An electric regulating device is arranged at the upper end of the splicing pipe. An intake flange interface is arranged at the lower end of the splicing pipe. A pressure relief bolt is arranged at the lower end of the intake flange interface. A T-shaped shunt pipe is arranged on one side of the splicing pipe. A first flange shunt port is arranged on one side of the T-shaped shunt pipe. A second flange shunt port is arranged on the other side of the T-shaped shunt pipe. The design of this pressure regulating valve is simple. The configuration of the shunt pipe and the flange interface makes its structure more modular, facilitating installation and disassembly. When a fault occurs or maintenance is required, local maintenance or component replacement can be carried out more conveniently, improving the maintainability of the entire system and the stability of long-term use. By reasonably configuring the electric regulating device, the pressure relief device and the air flow distribution interface, the design of the entire pressure regulating valve helps to improve the system stability of the gas pipeline. Whether it is load change or environmental condition fluctuation, the pressure regulating valve can effectively regulate the gas pressure and ensure the smooth operation of the gas pipeline under various complex conditions.

[0006] Furthermore, the spliced pipe includes a main pipe. A regulating device fixing part is fixedly connected to the upper end of the main pipe. A 90-degree splicing elbow is arranged at the lower end of the main pipe. A flow splitting cavity is arranged inside the main pipe. Through the combination of the 90-degree splicing elbow and the flow splitting cavity, the design of the overall pipeline system has strong adaptability. The pipeline can flexibly adjust the direction without changing the main structure and can distribute the air flow according to needs. In this way, not only the layout flexibility of the pipeline system is improved, but also it is convenient to adapt to the requirements of various pressures and flows in different working environments.

[0007] Furthermore, the electric regulating device includes a rotating motor. A rotating connecting rod is arranged at the output end of the rotating motor. The output end of the rotating connecting rod is connected to a flow splitting valve head. A pressure valve head is arranged at the lower end of the flow splitting valve head. The core function of the electric regulating device is to adjust the pressure in the pipeline through the rotating motor. The rotating motor drives the rotating connecting rod, and then controls the position change of the flow splitting valve head. When the position of the flow splitting valve head changes, the size of the air flow channel can be accurately controlled, thereby adjusting the gas pressure in the pipeline and ensuring that the pressure in the system is stable within the set range. With the setting of the pressure valve head, the pressure in the pipeline can be adjusted and feedback in real time, further improving the adjustment accuracy.

[0008] Furthermore, an air intake cavity is arranged inside the 90-degree splicing elbow.

[0009] Furthermore, the flow splitting valve head is arranged in the flow splitting cavity, and the pressure valve head is arranged in the air intake cavity.

[0010] Furthermore, the rotating motor drives the up and down movement of the rotating connecting rod and the flow splitting valve head.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The electric regulating device precisely adjusts the flow splitting valve head through the rotating motor, can adjust the air flow channel in the pipeline in real time, and ensures that the gas pressure in the gas pipeline is stable within the set range. Especially when the load changes or the environmental conditions fluctuate, the pressure regulating valve can keep the system running stably, greatly improving the stability and reliability of the entire gas pipeline system and reducing system failures caused by pressure fluctuations.

[0013] 2. Through the combination of the design of the 90-degree splicing elbow and the flow splitting cavity, the pipeline direction can be flexibly adjusted, and the air flow can be distributed according to the requirements of different working environments. In this way, not only the layout flexibility of the pipeline system is improved, but also the ability of the system to adapt to different pressure and flow requirements is enhanced, which is convenient for use in diverse environments and improves the adaptability of the pipeline system.

[0014] 3. The pressure regulating valve adopts a modular design. The reasonable configuration of the shunt pipe, flange interface, and regulating device makes the installation and disassembly of the system more convenient. When a fault occurs, local maintenance or component replacement can be carried out more easily, significantly improving the maintainability of the system. This design enables the equipment to maintain a high maintenance efficiency during long-term use, reducing the downtime and maintenance costs caused by faults. Brief Description of the Drawings

[0015] Figure 1 is a schematic diagram of the present invention;

[0016] Figure 2 is a cross-sectional schematic diagram of the splicing pipe of the present invention;

[0017] Figure 3 is a cross-sectional schematic diagram of the electric regulating device of the present invention.

[0018] In the figure, 1 - splicing pipe, 2 - electric regulating device, 3 - intake flange interface, 4 - pressure relief bolt, 5 - T-shaped shunt pipe, 6 - first flange shunt port, 7 - second flange shunt port, 11 - main pipe, 12 - regulating device fixing part, 13 - 90-degree splicing elbow, 14 - shunt cavity, 21 - rotating motor, 22 - rotating connecting rod, 23 - shunt valve head, 24 - pressure valve head, 131 - intake cavity. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Combined with Figures 1-3As shown in the figure, a pressure regulating valve for a gas pipeline includes a splicing pipe 1. An electric regulating device 2 is arranged at the upper end of the splicing pipe 1. An intake flange interface 3 is arranged at the lower end of the splicing pipe 1. A pressure relief bolt 4 is arranged at the lower end of the intake flange interface 3. A T-shaped shunt pipe 5 is arranged on one side of the splicing pipe 1. A first flange shunt port 6 is arranged on one side of the T-shaped shunt pipe 5. A second flange shunt port 7 is arranged on the other side of the T-shaped shunt pipe 5. The design of this pressure regulating valve is simple. The configuration of the shunt pipe and the flange interface makes its structure more modular, facilitating installation and disassembly. When a fault occurs or maintenance is required, local repair or component replacement can be carried out more conveniently, improving the maintainability of the entire system and the stability of long-term use. By reasonably configuring the electric regulating device, the pressure relief device and the air flow distribution interface, the design of the entire pressure regulating valve helps to improve the system stability of the gas pipeline. Whether it is load change or environmental condition fluctuation, the pressure regulating valve can effectively regulate the gas pressure and ensure the stable operation of the gas pipeline under various complex conditions.

[0021] Among them, the splicing pipe 1 includes a main pipeline 11. A regulating device fixing part 12 is fixedly connected to the upper end of the main pipeline 11. A 90-degree splicing elbow 13 is arranged at the lower end of the main pipeline 11. A shunt cavity 14 is arranged inside the main pipeline 11. Through the combination of the 90-degree splicing elbow and the shunt cavity, the design of the overall pipeline system has strong adaptability. The pipeline can flexibly adjust the direction without changing the main structure and can distribute the air flow according to needs. In this way, not only the layout flexibility of the pipeline system is improved, but also it is convenient to adapt to various pressure and flow requirements in different working environments. The electric regulating device 2 includes a rotating motor 21. A rotating connecting rod 22 is arranged at the output end of the rotating motor 21. The output end of the rotating connecting rod 22 is connected to a shunt valve head. A pressure valve head 24 is arranged at the lower end of the shunt valve head 23. The core function of the electric regulating device is to adjust the pressure in the pipeline through the rotating motor. The rotating motor drives the rotating connecting rod, and then controls the position change of the shunt valve head. When the position of the shunt valve head changes, the size of the air flow channel can be accurately controlled, thereby adjusting the gas pressure in the pipeline and ensuring that the pressure in the system is stable within the set range. With the setting of the pressure valve head, the pressure in the pipeline can be adjusted and feedback in real time, further improving the adjustment accuracy. An intake cavity 131 is arranged inside the 90-degree splicing elbow 13. The shunt valve head 23 is arranged in the shunt cavity 14, and the pressure valve head 24 is arranged in the intake cavity 131. The rotating motor 21 drives the up and down movement of the rotating connecting rod 22 and the shunt valve head 23.

[0022] Working principle: The gas enters the splicing pipe 1 through the intake flange interface 3. There is a pressure relief bolt 4 at the lower end of the intake flange interface 3, which is used to automatically release excessive air pressure when the pipeline pressure exceeds a predetermined threshold, thereby preventing damage to the pipeline due to overpressure. There is an electric regulating device 2 at the upper end of the splicing pipe 1. Its core part is the rotating motor 21. When the gas flows into the system, the electric regulating device drives the rotating connecting rod 22 through the rotating motor 21, and then drives the flow dividing valve head 23 to move up and down. The rotating motor 21 adjusts the position of the valve head according to the feedback signal of the pressure sensor or the control system, precisely controls the size of the passage for the air flow through the pipeline, thereby regulating the flow rate and pressure of the gas in the pipeline. The electric regulating device controls the distribution of the air flow by adjusting the position of the flow dividing valve head 23. The flow dividing valve head 23 is located in the flow dividing cavity 14. As the position changes, the air flow is distributed to different outlets through the flow dividing cavity 14. When the valve head moves downward, the air flow passage becomes larger and the pressure decreases; when the valve head moves upward, the air flow passage becomes smaller and the pressure increases. While the flow dividing valve head 23 controls the air flow, the pressure valve head 24 also plays a key role. The pressure valve head 24 is located in the intake cavity 131 and is closely related to the air flow and pressure in the intake cavity. It can monitor and adjust the pressure in the pipeline in real time. When the gas pressure is too high, the pressure valve head 24 will be activated to adjust the air flow or directly relieve the pressure to ensure the pressure stability of the pipeline system.

[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressure regulating valve for a gas pipeline, comprising a splicing pipe (1), characterized in that: The upper end of the spliced ​​pipe (1) is provided with an electric adjustment device (2), the lower end of the spliced ​​pipe (1) is provided with an air intake flange interface (3), the lower end of the air intake flange interface (3) is provided with a pressure relief bolt (4), one side of the spliced ​​pipe (1) is provided with a T-shaped flow divider (5), one side of the T-shaped flow divider (5) is provided with a first flange flow divider port (6), and the other side of the T-shaped flow divider (5) is provided with a second flange flow divider port (7).

2. A pressure regulating valve for a gas pipeline according to claim 1, characterized in that: The spliced ​​pipe (1) comprises a main pipe (11), the upper end of the main pipe (11) is fixedly connected to an adjusting device fixing piece (12), the lower end of the main pipe (11) is provided with a 90-degree spliced ​​elbow (13), and a flow diversion cavity (14) is provided inside the main pipe (11).

3. A pressure regulating valve for a gas pipeline according to claim 2, characterized in that: The electric adjustment device (2) comprises a rotating motor (21), the output end of the rotating motor (21) is provided with a rotating connecting rod (22), the output end of the rotating connecting rod (22) is connected to a diverter valve head, and the lower end of the diverter valve head (23) is provided with a pressure valve head (24).

4. A pressure regulating valve for a gas pipeline according to claim 3, characterized in that: An air intake cavity (131) is arranged inside the 90-degree spliced ​​elbow (13).

5. A pressure regulating valve for a gas pipeline according to claim 4, characterized in that: The flow diversion valve head (23) is arranged in the flow diversion cavity (14), and the pressure valve head (24) is arranged in the air intake cavity (131).

6. A pressure regulating valve for a gas pipeline according to claim 5, characterized in that: The rotating motor (21) drives the rotating connecting rod (22) and the diverter valve head (23) to move up and down.

Images