Automatic natural gas distribution flow control device

Abstract

The utility model provides an automatic natural gas distribution flow control device, which relates to the technical field of natural gas transportation and comprises a main gas pipeline, a connecting pipeline is arranged at the top of the main gas pipeline, two side walls of the connecting pipeline are respectively connected with a main pressure relief pipeline and a standby pressure relief pipeline, and an automatic pressure relief device is arranged in the connecting pipeline. An automatic pressure applying device is further arranged at the connecting position of the connecting pipeline and used for conducting pressurization treatment on the automatic pressure relief device, the automatic pressure relief device can respond when the pressure in the main pipeline is too large, and when the pressure exceeds a set value, natural gas can apply pressure to the bottom of the piston to push the piston to move upwards. The piston extrudes the supporting spring in the ascending process, and when the piston ascends into the main pressure relief pipeline, natural gas is conveyed in a distributing mode through the pressure relief pipeline, so that the pressure in the main gas conveying pipeline can be effectively reduced, and safety accidents such as pipeline breakage and leakage caused by too high pressure are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas transportation technical field especially relates to natural gas automatic distribution flow control device. BACKGROUND

[0002] Natural gas refers to all gases in nature, including the atmosphere, water circle and lithosphere, and the gases formed by various natural processes (including oilfield gas, gas field gas, mud volcano gas, coal bed gas and biogenic gas, etc.).

[0003] But the definition of "natural gas" commonly used by people for a long time is a narrow definition from the energy angle, which refers to the mixture of hydrocarbon and non-hydrocarbon gases naturally contained in the stratum. In petroleum geology, it usually refers to oilfield gas and gas field gas. Its composition is mainly hydrocarbon and contains non-hydrocarbon gas.

[0004] Under the background of increasing energy demand, natural gas, as a clean and efficient energy, has been widely used in industrial production and daily life. However, in the process of natural gas transportation and distribution, there are many challenges. The traditional natural gas distribution flow control device has a series of problems, which seriously affects the safety and efficiency of natural gas transportation.

[0005] When the pressure in the pipeline is too large, the traditional device lacks effective automatic pressure relief measures, and if the pressure in the pipeline cannot be effectively reduced in time, the risk of pipeline rupture, leakage and other safety accidents will increase, which not only seriously threatens the safety of personnel life and property, but also pollutes the environment.

[0006] Therefore, we propose a natural gas automatic distribution flow control device. SUMMARY

[0007] The utility model discloses a natural gas automatic distribution flow control device, which can effectively reduce the pressure in the pipeline when the pressure in the pipeline is too large, and can effectively prevent the pipeline from rupturing, leaking and other safety accidents, thereby ensuring the safety of personnel life and property and protecting the environment.

[0008] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0009] The natural gas automatic distribution flow control device comprises a main gas pipeline, a connecting pipeline is arranged at the top of the main gas pipeline, a main pressure relief pipeline and a standby pressure relief pipeline are respectively connected to the two side walls of the connecting pipeline, an automatic pressure relief device is arranged in the connecting pipeline, an automatic pressure applying device is further arranged at the connecting position of the connecting pipeline, and the automatic pressure applying device is used for pressure processing of the automatic pressure relief device.

[0010] The automatic pressure relief device comprises a hexagonal installation barrel, a bottom limiting plate is installed inside and close to the bottom of the hexagonal installation barrel, a plurality of first pressure sensors are installed on the bottom limiting plate, a top limiting plate is installed above the bottom limiting plate, a plurality of second pressure sensors are installed on the bottom of the top limiting plate, and a sealing groove is formed in the top of the hexagonal installation barrel.

[0011] The automatic pressure relief device comprises a hexagonal installation barrel, a bottom limiting plate is installed inside and close to the bottom of the hexagonal installation barrel, a plurality of first pressure sensors are installed on the bottom limiting plate, a top limiting plate is installed above the bottom limiting plate, a plurality of second pressure sensors are installed on the bottom of the top limiting plate, and a sealing groove is formed in the top of the hexagonal installation barrel.

[0012] As a preferred scheme of the utility model, the automatic pressure relief device further comprises a lower installation plate, a connecting rod is installed at the bottom of the lower installation plate, a piston is installed at the bottom of the connecting rod, and a plurality of supporting springs are installed at the top of the lower installation plate.

[0013] As a preferred scheme of the utility model, the top of the supporting spring is provided with an upper installation plate, the bottom of the supporting spring is fixedly connected with the lower installation plate, and the upper installation plate, the supporting spring, the lower installation plate, the connecting rod and the piston are designed in an integrated mode.

[0014] As a preferred scheme of the utility model, the lower installation plate can extrude the plurality of first pressure sensors, the upper installation plate can extrude the plurality of second pressure sensors, and the lower installation plate and the upper installation plate are fixedly connected with the hexagonal installation barrel.

[0015] As a preferred scheme of the utility model, the automatic pressure relief device further comprises a mounting seat, a shell is installed on the mounting seat, the gas pump and the control device body are installed inside the shell, and the mounting seat is fixed to the outer side of the connecting pipeline.

[0016] As a preferred scheme of the utility model, the connecting head is connected between the flange and the connecting pipeline, and the sealing element of the connecting head is inserted into the sealing groove of the hexagonal installation barrel.

[0017] As a preferred scheme of the utility model, the standby pressure relief pipeline is further provided with an electromagnetic valve, and the electromagnetic valve is connected with the control device body.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] The automatic pressure relief device can react when the pressure in the main pipeline is too large, and when the pressure exceeds the set value, the natural gas can exert pressure on the bottom of the piston to push the piston to move upward, and the piston can extrude the supporting spring during the upward movement, and when the piston rises into the main pressure relief pipeline, the natural gas can complete the distribution work through the pressure relief pipeline, so that the pressure in the main gas pipeline can be effectively reduced, and the safety accidents such as pipeline rupture and leakage caused by excessive pressure can be avoided.

[0020] The automatic pressure device provides adjustable pressure for the supporting spring, and the pressure of the supporting spring can be accurately adjusted by controlling the automatic pressure device, so that the pressure in the pipeline can be freely adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model provides the main body structure schematic drawing of natural gas automatic distribution flow control device;

[0022] Figure 2 The back structure schematic drawing of natural gas automatic distribution flow control device is provided for the utility model;

[0023] Figure 3 The connecting pipeline internal structure schematic drawing of natural gas automatic distribution flow control device is provided for the utility model;

[0024] Figure 4 The front cross section structure schematic drawing of natural gas automatic distribution flow control device is provided for the utility model;

[0025] Figure 5 The right side cross section structure schematic drawing of natural gas automatic distribution flow control device is provided for the utility model;

[0026] Figure 6 The piston installation schematic drawing of natural gas automatic distribution flow control device is provided for the utility model.

[0027] Legend: 1, main gas pipeline; 2, connecting pipeline; 3, main pressure relief pipeline; 4, standby pressure relief pipeline; 5, six edge installation bucket; 6, bottom limit plate; 7, first pressure sensor; 8, lower mounting plate; 9, connecting rod; 10, piston; 11, supporting spring; 12, upper mounting plate; 13, second pressure sensor; 14, top limit plate; 15, sealing groove; 16, connecting head; 17, sealing element; 18, pressure pipe; 19, mounting seat; 20, shell; 21, gas pump; 22, control device body; 23, electromagnetic valve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related description of the present application, and several embodiments of the present application are given. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Embodiments

[0032] As shown in Figures 1-6 The present application provides a technical solution: a natural gas automatic distribution flow control device, comprising a main gas pipeline 1, a connecting pipeline 2 is arranged at the top of the main gas pipeline 1, a main pressure relief pipeline 3 and a standby pressure relief pipeline 4 are respectively connected to the two side walls of the connecting pipeline 2, an automatic pressure relief device is arranged in the connecting pipeline 2, and an automatic pressure applying device is further arranged at the connection of the connecting pipeline 2, and the automatic pressure applying device is used for pressure processing of the automatic pressure relief device.

[0033] The automatic pressure relief device comprises a hexagonal installation barrel 5, a bottom limiting plate 6 is arranged in the interior of the hexagonal installation barrel 5 and close to the bottom, a plurality of first pressure sensors 7 are arranged on the bottom limiting plate 6, a top limiting plate 14 is arranged above the bottom limiting plate 6, a plurality of second pressure sensors 13 are arranged at the bottom of the top limiting plate 14, and a sealing groove 15 is arranged at the top of the hexagonal installation barrel 5.

[0034] The automatic pressure applying device includes a connector 16, a sealing element 17 is installed at the bottom of the connector 16, a pressure applying pipe 18 is connected to the input end of the connector 16, a gas pump 21 is arranged at the connection of the pressure applying pipe 18, and a control device body 22 is installed below the gas pump 21.

[0035] The automatic pressure relief device can respond when the pressure in the main pipeline is too high. When the pressure exceeds the set value, the natural gas will exert pressure on the bottom of the piston 10, pushing the piston 10 to move upward. The piston 10 squeezes the support spring 11 during the upward movement. When the piston 10 rises into the main relief pipeline 3, the natural gas completes the distribution through the relief pipeline, effectively reducing the pressure in the main gas pipeline 1 and avoiding safety accidents such as pipeline rupture and leakage caused by excessive pressure.

[0036] The automatic pressure applying device provides adjustable pressure for the support spring 11. By controlling the automatic pressure applying device, the pressure of the support spring 11 can be accurately adjusted, thereby achieving free adjustment of the pressure in the pipeline.

[0037] This pressure-adjustable design allows the device to adapt to different pressure ranges of pipelines, whether high-pressure or low-pressure pipelines. By adjusting the pressure of the support spring 11, the best flow control effect can be achieved, greatly improving the universality and applicability of the device and reducing the investment cost of equipment.

[0038] The free adjustment of pressure can also be flexibly adjusted according to actual needs, such as in different seasons or different peak gas consumption periods. The working state of the device can be adjusted in time according to the pressure change in the pipeline to ensure stable supply of natural gas.

[0039] In addition, the travel of the piston 10 is strictly limited by the bottom limiting plate 6 and the top limiting plate 14. These two limiting plates can ensure that the piston 10 moves within a safe range and prevent the piston 10 from rising or falling excessively, causing the device to fail.

[0040] The pressure sensors arranged on the top limiting plate 14 and the bottom limiting plate 6 can monitor the pressure at the position of the piston 10 in real time. These pressure sensors can transmit the monitored data to the control device body 22, providing accurate data support for automatic pressure relief and flow control. Through analysis and processing of pressure data, the control device body 22 can adjust the working state of the device in time to ensure that the pressure in the pipeline is always within a safe range.

[0041] The automatic pressure relief device also includes a lower mounting plate 8, a connecting rod 9 is installed at the bottom of the lower mounting plate 8, a piston 10 is installed at the bottom of the connecting rod 9, and a plurality of support springs 11 are installed at the top of the lower mounting plate 8.

[0042] The top of the supporting spring 11 is provided with an upper mounting plate 12, the bottom of the supporting spring 11 is fixedly connected with a lower mounting plate 8, and the upper mounting plate 12, the supporting spring 11, the lower mounting plate 8, the connecting rod 9 and the piston 10 are integrally designed.

[0043] The lower mounting plate 8 can extrude the first pressure sensors 7, and the upper mounting plate 12 can extrude the second pressure sensors 13, and the lower mounting plate 8 and the upper mounting plate 12 are fixedly connected with the hexagonal mounting barrel 5.

[0044] When the piston 10 moves upward under pressure, the lower mounting plate 8 extrudes the first pressure sensors 7 at the bottom, which can make the first pressure sensors 7 more accurately perceive the pressure change and transmit the signal to the control system. Similarly, when the supporting spring 11 is compressed or stretched, the upper mounting plate 12 extrudes the second pressure sensors 13 at the top. The pressure sensors can monitor the pressure change in the device in real time and provide a basis for adjusting the automatic pressure device. The fixed connection between the lower mounting plate 8 and the upper mounting plate 12 and the hexagonal mounting barrel 5 ensures the structural stability of the entire device.

[0045] The automatic pressure device also comprises a mounting seat 19, and a shell 20 is mounted on the mounting seat 19. The air pump 21 and the control device body 22 are both mounted in the shell 20.

[0046] The mounting seat 19 provides a stable mounting platform for the air pump 21 and the control device body 22. The shell 20 protects the air pump 21 and the control device body 22 from the external environment, and also plays a certain sound insulation and heat insulation role. The mounting seat 19 is fixed on the outer side of the connecting pipeline 2, ensuring that the automatic pressure device and the automatic pressure relief device are connected closely and reliably, and facilitating maintenance and repair.

[0047] The connecting head 16 is connected between the flange and the connecting pipeline 2, and the sealing element 17 of the connecting head 16 is inserted into the sealing groove 15 of the hexagonal mounting barrel 5.

[0048] The connecting head 16 is connected with the connecting pipeline 2 through the flange, which has the advantages of firmness, reliability and good sealing performance. The flange connection can be easily disassembled and installed, facilitating the maintenance and repair of the device. The sealing element 17 of the connecting head 16 is inserted into the sealing groove 15 of the hexagonal mounting barrel 5, forming a good sealing structure to prevent natural gas leakage. The sealing element 17 is usually made of high-temperature-resistant and corrosion-resistant materials, which can maintain good sealing performance in harsh working environment.

[0049] The standby pressure relief pipeline 4 is also provided with an electromagnetic valve 23, and the electromagnetic valve 23 is connected with the control device body 22.

[0050] The electromagnetic valve 23 on the standby pressure relief pipeline 4 can be opened when needed to provide an additional pressure relief path for natural gas, and the electromagnetic valve 23 is connected with the control device body 22, and the control device body 22 can automatically control the opening and closing of the electromagnetic valve 23 according to the pressure condition in the pipeline and the working state of the automatic pressure relief device, for example, when the main pressure relief pipeline 3 fails or cannot meet the pressure relief demand, the control device body 22 can open the electromagnetic valve 23 to enable the standby pressure relief pipeline 4.

[0051] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A natural gas automatic distribution flow control device, comprising a main gas pipeline (1), characterized in that: The top of the main gas pipeline (1) is provided with a connecting pipeline (2), the two side walls of the connecting pipeline (2) are respectively connected with a main pressure relief pipeline (3) and a backup pressure relief pipeline (4), the inside of the connecting pipeline (2) is provided with an automatic pressure relief device, and the connecting position of the connecting pipeline (2) is also provided with an automatic pressure applying device. The automatic pressure relief device comprises a hexagonal installation barrel (5), a bottom limiting plate (6) is installed at the inside of the hexagonal installation barrel (5) and close to the bottom, a plurality of first pressure sensors (7) are installed on the bottom limiting plate (6), a top limiting plate (14) is installed above the bottom limiting plate (6), a plurality of second pressure sensors (13) are installed at the bottom of the top limiting plate (14), and a sealing groove (15) is formed in the top of the hexagonal installation barrel (5). The automatic pressure applying device comprises a connecting head (16), a sealing element (17) is installed at the bottom of the connecting head (16), a pressurizing pipe (18) is connected to the input end of the connecting head (16), an air pump (21) is arranged at the connecting position of the pressurizing pipe (18), and a control device body (22) is installed below the air pump (21).

2. The automatic gas split flow control device of claim 1, wherein: The automatic pressure relief device further comprises a lower installation plate (8), a connecting rod (9) is installed at the bottom of the lower installation plate (8), a piston (10) is installed at the bottom of the connecting rod (9), and a plurality of supporting springs (11) are installed at the top of the lower installation plate (8).

3. The automatic gas split flow control device of claim 2, wherein: An upper installation plate (12) is installed at the top of the supporting spring (11), the bottom of the supporting spring (11) is fixedly connected with the lower installation plate (8), and the upper installation plate (12), the supporting spring (11), the lower installation plate (8), the connecting rod (9) and the piston (10) are designed in an integrated mode.

4. The automatic gas split flow control device of claim 3, wherein: The lower installation plate (8) can extrude the plurality of first pressure sensors (7), the upper installation plate (12) can extrude the plurality of second pressure sensors (13), and the lower installation plate (8) and the upper installation plate (12) are fixedly connected with the hexagonal installation barrel (5).

5. The automatic gas split flow control device of claim 1, wherein: The automatic pressure applying device further comprises a mounting seat (19), a shell (20) is installed on the mounting seat (19), the air pump (21) and the control device body (22) are installed in the shell (20), and the mounting seat (19) is fixed to the outer side of the connecting pipeline (2).

6. The automatic gas allocation flow control device of claim 1, wherein: The connecting head (16) is connected with the connecting pipeline (2) through a flange, and the sealing element (17) of the connecting head (16) is inserted into the sealing groove (15) of the hexagonal installation barrel (5).

7. The automatic gas pigging flow control apparatus of claim 1 or hexagonal mounting barrel (5), characterized in that: An electromagnetic valve (23) is further installed on the backup pressure relief pipeline (4), and the electromagnetic valve (23) is connected with the control device body (22).

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