Pressure adjusting device for natural gas pipeline

Abstract

The utility model discloses a pressure adjusting device for a natural gas pipeline. The pressure adjusting device comprises a cuboid device shell, a pair of adapters and a connection containing shell. The utility model relates to the technical field of pressure regulating equipment for pipelines, and realizes accurate regulation of the regulating connecting column and the choked flow regulating square plate connected with the regulating connecting column by regulating the applicable displacement structure, and in the regulating process, the choked flow regulating square plate can be smoothly driven to the required height, so that the regulating efficiency is improved. By means of the design, the installation process of components of the device is simplified, the follow-up maintenance work becomes more convenient, the use and maintenance cost is greatly reduced, and the device is suitable for popularization and application. The whole device is high in practicability, economical and efficient, and a more convenient and economical natural gas throughput adjusting scheme is provided for users.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure regulating equipment for pipelines, in particular to a pressure regulating device for natural gas pipelines. Background Art

[0002] A natural gas pipeline is a pipeline that transports natural gas (including associated gas produced in oil fields) from the extraction site or processing plant to the urban gas distribution center or industrial enterprise users. It is also called a gas transmission pipeline. It is the main way to transport large quantities of natural gas on land. Natural gas pipelines account for about half of the world's total pipeline length. The reason why natural gas pipelines need pressure regulating devices is that these devices play a vital role in the gas transportation process. The pressure regulating device is the main valve device of the gas pipeline network. It can ensure that the gas flows at a stable and safe pressure in the pipeline. When natural gas is transmitted in the pipeline, the pressure will fluctuate due to the influence of various factors such as pipeline length, terrain undulations, and changes in gas volume. The pressure regulating device can automatically adjust the pressure in the pipeline to keep it within a safe and stable range, thereby ensuring the smooth transportation of natural gas. If the pressure in the pipeline is too high, it may cause safety accidents such as pipeline rupture and leakage. The pressure regulating device can monitor the pressure in the pipeline in real time. Once the pressure exceeds the safe range, the device will automatically adjust or cut off the gas source to prevent the occurrence of safety accidents. By accurately controlling the pressure in the pipeline, the pressure regulating device can optimize the natural gas transportation efficiency, reduce energy loss, and improve economic benefits. Therefore, in order to ensure the safety and stability of natural gas transportation and improve the transportation efficiency, a pressure regulating device needs to be installed in the natural gas pipeline. At present, when adjusting the pressure of natural gas pipelines, throttle valves or throttle orifice plates are sometimes used to cut off or restrict the flow of natural gas. However, this method is not only cumbersome to operate, but also relatively troublesome to maintain. Therefore, it is particularly important to seek a more efficient, convenient and easy-to-maintain natural gas pipeline pressure regulation method. For the above problems, there may already be technical means to solve them in the prior art, but this case wants to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, the utility model is implemented through the following technical solutions: a pressure regulating device for a natural gas pipeline, comprising: a rectangular device shell, a pair of adapters and a connection and receiving shell, wherein the pair of adapters are respectively installed on the rectangular device shell, the connection and receiving shell is connected to the rectangular device shell, an auxiliary flow blocking sealing component is installed in the rectangular device shell, and the connection and receiving shell is installed with an adjustment applicable displacement structure;

[0004] The adjustment applicable displacement structure includes: a covering power chamber, a driving rotor, an engaging driving disk, a guiding spiral key on the disk, an adjustment connection column, and a plurality of engaging grooves on the column;

[0005] The enclosed power chamber is mounted on the connection and accommodation shell, the driving rotor is mounted in the enclosed power chamber via a bracket, the meshing driving disk is mounted in the enclosed power chamber, and the meshing driving disk is connected to the driving rotor via a rotating shaft, a plurality of column meshing grooves are respectively provided on the adjustment connection column, the guide spiral key on the disk is mounted on the meshing driving disk, and the guide spiral key on the disk meshes with the column meshing groove, and the adjustment connection column is inserted into the connection and accommodation shell;

[0006] It should be noted that, in the above, a pair of adapter joints are screwed and connected to the natural gas pipeline through the coupling threads arranged thereon, and the natural gas flows into the rectangular device shell from the pipeline on one side and is guided to the natural gas pipeline on the other side. When the terminal natural gas pressure needs to be adjusted, it is only necessary to start the driving rotor in the power chamber, and the driving rotor drives the guide spiral key on the engaging driving disk to rotate, and the guide spiral key on the disk engages with the engaging groove on the adjusting connecting column. Therefore, when the guide spiral key on the disk rotates, it drives the adjusting connecting column to move up or down in the connecting housing shell, and the adjusting connecting column relies on the connecting slide rail arranged in the connecting housing shell to stably rise or fall, thereby driving the flow control square plate to move up and down and block or adjust the flow of natural gas in the rectangular device shell, thereby controlling the amount of natural gas released by the terminal, thereby achieving the natural gas pressure regulation effect.

[0007] Preferably, the auxiliary flow-blocking sealing component comprises: a flow-blocking adjustment square plate, an auxiliary sealing silicone layer in a long shell, and a pair of joint auxiliary sealing rings;

[0008] The flow resistance adjustment square plate is installed in the rectangular device housing, and the flow resistance adjustment square plate is connected to the adjustment connection column. The rectangular device housing is provided with the auxiliary sealing silicone layer in the long shell, and a pair of the joint auxiliary sealing rings are respectively installed in a pair of the adapter joints;

[0009] It should be noted that, in the above, the auxiliary sealing silicone layer in the long shell can fully seal the shell of the rectangular device, and when the flow-blocking adjustment square plate is closed, it can cooperate with the flow-blocking adjustment square plate to intercept the natural gas in the shell of the rectangular device, and the joint auxiliary sealing ring can assist the connection between the adapter and the natural gas pipeline to seal and seal, making the entire device more rigorous. When the flow-blocking adjustment square plate is fully lifted and retracted into the connecting and receiving shell, the entire device is in a fully flowing state, and the wear-resistant coating provided on the flow-blocking adjustment square plate can make the durability of the entire device even better.

[0010] Preferably, a coupling thread is provided in the adapter joint;

[0011] Preferably, a connecting slide rail is provided in the connecting receiving shell;

[0012] Preferably, a maintenance access port is provided on the encapsulated power chamber;

[0013] Preferably, a wear-resistant coating is provided on the resistance adjustment square plate.

[0014] Beneficial Effects

[0015] The utility model provides a pressure regulating device for a natural gas pipeline. It has the following beneficial effects. Compared with the prior art, the pressure regulating device for a natural gas pipeline achieves precise adjustment of the adjustment connection column and the flow-blocking adjustment square plate connected thereto by adjusting the applicable displacement structure. During the adjustment process, the flow-blocking adjustment square plate can be smoothly driven to the required height, thereby effectively changing the area of ​​the gap between it and the rectangular device shell, thereby achieving precise regulation of the natural gas ventilation volume in the entire device shell. This design not only simplifies the installation process of the device components, but also makes the subsequent maintenance work more convenient, greatly reducing the use and maintenance costs. The entire device is not only highly practical, but also economical and efficient, providing users with a more convenient and economical natural gas ventilation volume adjustment solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of a pressure regulating device for a natural gas pipeline described in the utility model.

[0017] Figure 2 It is a side structural schematic diagram of a pressure regulating device for a natural gas pipeline described in the utility model.

[0018] Figure 3 The utility model is a schematic diagram of the structure of an engaging drive disc of a pressure regulating device for a natural gas pipeline.

[0019] In the figure: 1. Rectangular device shell; 2. Adapter joint; 3. Connecting and containing shell; 4. Enclosing power chamber; 5. Driving rotor; 6. Engaging driving disk; 7. Guide spiral key on disk; 8. Adjusting connecting column; 9. Engaging groove on column; 10. Flow resistance adjusting square plate; 11. Auxiliary sealing silicone layer in long shell; 12. Auxiliary sealing ring of joint. DETAILED DESCRIPTION

[0020] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0021] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0022] Example

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-3 As shown, a pressure regulating device for a natural gas pipeline comprises: a rectangular device shell 1, a pair of adapters 2 and a connection and accommodation shell 3, wherein the pair of adapters 2 are respectively mounted on the rectangular device shell 1, the connection and accommodation shell 3 is connected to the rectangular device shell 1, an auxiliary flow-blocking closure assembly is mounted in the rectangular device shell 1, and the connection and accommodation shell 3 is mounted with an adjustment applicable displacement structure; the adjustment applicable displacement structure comprises: a coated power chamber 4, a driving rotor 5, an engaging driving disk 6, a guide spiral key 7 on the disk, an adjustment connection column 8 and a plurality of engaging grooves 9 on the column; the coated power chamber 4 is mounted on the connection and accommodation shell 3, the driving rotor 5 is mounted in the coated power chamber 4 through a bracket, the engaging driving disk 6 is mounted in the coated power chamber 4, and the engaging The engaging driving disk 6 is connected to the driving rotor 5 through a rotating shaft, and a plurality of column engaging grooves 9 are respectively provided on the adjusting connecting column 8, the disk guiding spiral key 7 is installed on the engaging driving disk 6, and the disk guiding spiral key 7 is engaged with the column engaging groove 9, and the adjusting connecting column 8 is inserted in the connecting accommodating shell 3; the auxiliary flow-blocking sealing component comprises: a flow-blocking adjusting square plate 10, an auxiliary sealing silicone layer 11 in a long shell, and a pair of joint auxiliary sealing rings 12; the flow-blocking adjusting square plate 10 is installed in the rectangular device shell 1, and the flow-blocking adjusting square plate 10 is connected to the adjusting connecting column 8, the rectangular device shell 1 is provided with the auxiliary sealing silicone layer 11 in the long shell, and a pair of joint auxiliary sealing rings 12 are respectively installed in a pair of the adapter joints 2.

[0024] According to the attached Figure 1-3It is concluded that a pair of adapter joints 2 are screwed and connected to the natural gas pipeline through the coupling threads arranged thereon, and the natural gas flows into the rectangular device shell 1 from the pipeline on one side and is guided to the natural gas pipeline on the other side. When the terminal natural gas pressure needs to be adjusted, it is only necessary to start the driving rotor 5 in the power chamber 4, and the driving rotor 5 drives the disk guide spiral key 7 on the meshing driving disk 6 to rotate, and the disk guide spiral key 7 is engaged with the meshing groove on the adjustment connection column 8. Therefore, when the disk guide spiral key 7 rotates, it drives the adjustment connection column 8 to move up or down in the connection receiving shell 3, and the adjustment connection column 8 relies on the connection slide rail arranged in the connection receiving shell 3 to stably rise or fall up and down, thereby driving the flow resistance adjustment square plate 10 to move up and down and adjust the rectangular device shell. 1 can block or adjust the flow of natural gas in the terminal, thereby controlling the amount of natural gas released by the terminal, thereby achieving the effect of regulating the natural gas pressure; the auxiliary sealing silicone layer 11 in the long shell can fully seal the rectangular device shell 1, and when the flow-blocking regulating square plate 10 is closed, the flow-blocking regulating square plate 10 can be used to intercept the natural gas in the rectangular device shell 1, and the joint auxiliary sealing ring 12 can assist the connection between the adapter joint 2 and the natural gas pipeline to seal and seal, making the entire device more rigorous. When the flow-blocking regulating square plate 10 is fully lifted and retracted into the connection and receiving shell 3, the entire device is in a fully flowing state, and the wear-resistant coating provided on the flow-blocking regulating square plate 10 can make the durability of the entire device more excellent.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure regulating device for a natural gas pipeline, comprising: A rectangular device shell (1), a pair of adapter joints (2) and a connecting and receiving shell (3), characterized in that the pair of adapter joints (2) are respectively mounted on the rectangular device shell (1), the connecting and receiving shell (3) is connected to the rectangular device shell (1), an auxiliary flow-blocking sealing component is mounted in the rectangular device shell (1), and the connecting and receiving shell (3) is mounted with an adjustable and applicable displacement structure; The adjustable displacement structure comprises: a covering power chamber (4), a driving rotor (5), an engaging driving disk (6), a guiding spiral key on the disk (7), an adjustable connecting column (8) and a plurality of engaging grooves (9) on the column; The enclosed power chamber (4) is mounted on the connecting and accommodating shell (3), the driving rotor (5) is mounted in the enclosed power chamber (4) via a bracket, the meshing driving disk (6) is mounted in the enclosed power chamber (4), and the meshing driving disk (6) is connected to the driving rotor (5) via a rotating shaft, a plurality of column meshing grooves (9) are respectively provided on the adjusting connecting column (8), the disc guide spiral key (7) is mounted on the meshing driving disk (6), and the disc guide spiral key (7) and the column meshing groove (9) are meshed with each other, and the adjusting connecting column (8) is inserted into the connecting and accommodating shell (3).

2. A pressure regulating device for a natural gas pipeline according to claim 1, characterized in that: The auxiliary flow-blocking sealing component comprises: a flow-blocking regulating square plate (10), an auxiliary sealing silica gel layer (11) in a long shell, and a pair of joint auxiliary sealing rings (12); The flow-resistance adjustment square plate (10) is installed in the rectangular device housing (1), and the flow-resistance adjustment square plate (10) is connected to the adjustment connection column (8). The rectangular device housing (1) is provided with the long shell inner auxiliary sealing silicone layer (11), and a pair of joint auxiliary sealing rings (12) are respectively installed in a pair of adapter joints (2).

3. A pressure regulating device for a natural gas pipeline according to claim 2, characterized in that: A coupling thread is provided inside the adapter joint (2).

4. A pressure regulating device for a natural gas pipeline according to claim 3, characterized in that: A connecting slide rail is arranged in the connecting and accommodating shell (3).

5. A pressure regulating device for a natural gas pipeline according to claim 4, characterized in that: A maintenance and inspection opening is provided on the encapsulated power chamber (4).

6. A pressure regulating device for a natural gas pipeline according to claim 5, characterized in that: The resistance adjustment square plate (10) is provided with a wear-resistant coating.

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