An automatic control emergency compensation device for an important pipeline

Abstract

This utility model discloses an automatic control emergency compensation device for an important pipeline, belonging to the field of energy supply pipeline technology. The utility model includes a main pipeline and a secondary pipeline. The two ends of the secondary pipeline are connected in parallel to the inlet and outlet of the main pipeline regulating valve, respectively. A backup regulating valve is provided on the secondary pipeline, and a controller connected to the main pipeline regulating valve via a signal connection is mounted on the backup regulating valve. The controller has an instrument panel, and a solenoid valve control switch is connected to the controller via a signal connection and is used to control the opening of the solenoid valve to connect the outlet of the gas source device to the inlet of the gas source accelerator. The gas source accelerator has an atmospheric acceleration port, and a sealing element is provided at the atmospheric acceleration port to connect to or isolate external atmospheric pressure. In emergency switching, after the solenoid valve is opened and inflated, the sealing element opens the atmospheric acceleration port, thereby utilizing atmospheric pressure to accelerate the connection of the gas source and quickly reach the working pressure of the backup regulating valve. This eliminates the need for a higher-pressure gas source, reducing costs.

Description

Technical Field

[0001] This utility model belongs to the field of energy supply pipeline technology, and more specifically, it relates to an automatic control emergency compensation device for important pipelines. Background Technology

[0002] Water, steam, air, and nitrogen in each production workshop of the factory are the heart and lifeline of safe production. Ensuring their normal operation according to the parameters required by the process is of paramount importance. In particular, the foolproof automatic control of critical pipelines is the core of the system. However, all equipment has a service life and a failure rate. When a control valve on the main pipeline fails, if there is no backup measure and automatic control is directly activated, manual intervention is difficult to achieve an effective and timely switchover.

[0003] Typical backup measures include installing an additional automatic control regulating valve in parallel with the regulating valve on the main pipeline. However, since controlling both valves simultaneously can lead to system malfunctions, more unstable parameters, and large data fluctuations, the backup pipeline's regulating valve typically closes the solenoid valve on the gas source during normal main pipeline operation, preventing the regulating valve from being used. Only when the main pipeline regulating valve fails is the solenoid valve on the gas source controlled by the instrument activated and opened, allowing the backup regulating valve to connect to the gas source. The backup regulating valve can then instantly engage automatic control, ensuring energy supply for operation. However, the following problems exist:

[0004] Due to the influence of the pipeline length connecting the backup regulating valve to the air source, and the fact that the backup regulating valve needs to meet the working pressure to operate normally, it will take a certain amount of time for the backup regulating valve to replace the main regulating valve. Therefore, it is difficult to achieve synchronous and precise control of the backup regulating valve when switching to the backup regulating valve due to a main regulating valve failure. In addition, if it is necessary to reduce the connection time, an air source with a pressure much higher than that of the regulating valve originally controlled by the main pipeline is required, which will increase the cost. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing an automatic control emergency compensation device for important pipelines. It solves the problem in related technologies where the length of the pipeline connecting the backup regulating valve to the gas source is affected, and the backup regulating valve needs to meet the working pressure to work normally, resulting in the backup regulating valve needing a certain amount of time to replace the main regulating valve. This makes it difficult to achieve synchronous and precise control of the backup regulating valve when switching to the backup regulating valve in the event of a main regulating valve failure.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] An important pipeline automatic control emergency compensation device includes:

[0008] The main pipeline is equipped with a main pipeline regulating valve.

[0009] The secondary pipeline is connected in parallel at both ends to the inlet and outlet of the main regulating valve, respectively; a backup regulating valve is installed on the secondary pipeline; the backup regulating valve is equipped with a controller that is connected to the signal of the main regulating valve, and the controller has an instrument panel;

[0010] The solenoid valve control switch is connected to the controller signal and is also connected to the solenoid valve; the solenoid valve control switch is used to control the opening or closing of the solenoid valve.

[0011] A gas source accelerator is connected to the outlet of a gas source device; a solenoid valve is installed on the pipe between the outlet of the gas source device and the inlet of the gas source accelerator; the outlet of the gas source accelerator is connected to a standby regulating valve; the gas source accelerator has an internal acceleration structure; the gas source accelerator has an atmospheric acceleration port; the atmospheric acceleration port is equipped with a sealing component that connects to or isolates external atmospheric pressure.

[0012] In an emergency switchover, the controller opens the solenoid valve, energizing it. After the solenoid valve is opened and inflated, the sealing element opens the atmospheric acceleration port, using atmospheric pressure to accelerate the connection of the air source and quickly reach the working pressure of the backup regulating valve. This eliminates the need for a higher-pressure air source, reducing costs.

[0013] Preferably, the acceleration structure includes multiple acceleration tubes parallel to the outlet axis of the gas source accelerator; each acceleration tube includes a first tube section and a second tube section connected to each other;

[0014] The inner diameter of the first pipe section is larger than that of the second pipe section; and the second pipe section faces the outlet of the gas source accelerator. The above structure utilizes the structure of a Venturi tube; in the pipe, if the cross-sectional area of ​​the pipe gradually decreases from the wide part to the narrow part, the fluid will accelerate when passing through the narrow area, resulting in an increase in kinetic energy, thereby further accelerating the connection of the gas source and the rapid attainment of the working pressure on the basis of utilizing atmospheric pressure.

[0015] Preferably, each acceleration tube is connected to the inner arm of the gas source accelerator via a connecting rod.

[0016] Preferably, the internal channels of the gas source accelerator include a first circular channel and a second circular channel arranged coaxially; the diameter of the first circular channel is larger than the diameter of the second circular channel; the second circular channel is close to the outlet of the gas source accelerator.

[0017] The accelerator tube is located inside the first circular channel.

[0018] Preferably, the inlet pipe of the gas source accelerator includes a radial section and an axial section; one end of the radial section is connected to the gas source device, and the other end extends into the first circular channel inside the gas source accelerator; the axial section is located on the central axis of the internal channel of the gas source accelerator and is connected to the radial section.

[0019] In the direction of the central axis of the internal channel of the gas source accelerator, the axial segment extends from the first circular channel into the second circular channel.

[0020] Preferably, the outlet of the gas source accelerator and the atmospheric acceleration port are located at opposite ends of the central axis of the internal channel of the gas source accelerator.

[0021] The sealing component includes a cover, which is connected to the outside of the gas source accelerator via a hinge; the cover is provided with an elastic plug to block the atmospheric acceleration port.

[0022] The area of ​​the cover is larger than the area of ​​the atmospheric acceleration port; a lifting component is provided between the cover and the outer surface of the gas source accelerator, and around the atmospheric acceleration port; the lifting component is used to lift the cover so as to drive the cover to rotate with the hinge and open the atmospheric acceleration port.

[0023] Preferably, the lifting component is an electric push rod, and its two ends are fixedly connected to the outer surfaces of the cover and the air source accelerator, respectively.

[0024] Preferably, the lifting component is an electric push rod, which is fixedly installed on the outer surface of the air source accelerator; the telescopic end of the lifting component fits into the cover.

[0025] The sealing component also includes a spring, the two ends of which are fixedly connected to the outer surfaces of the cover and the gas source accelerator, respectively.

[0026] Preferably, the outlet pressure of the gas source device is the same as the outlet pressure of the gas source corresponding to the main regulating valve.

[0027] Preferably, the main control valve is also equipped with a monitoring device; the monitoring device is used to acquire the operating parameters of the main control valve.

[0028] The controller is used to close the main control valve when its operating parameters are outside the normal range. Simultaneously, it controls the solenoid valve to open and, after the solenoid valve opens, controls the sealing element to open the atmospheric acceleration port. This configuration allows for switching when the main control valve malfunctions, enabling inspection and maintenance of the main control valve. It ensures the stability of critical pipeline control, and in case of a fault, a backup control valve automatically activates instantly, guaranteeing safe and stable production in the workshop and significantly reducing the risk of accidents.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] This application provides an automatic control emergency compensation device for critical pipelines. The secondary pipeline is connected in parallel to the inlet and outlet of the main regulating valve, respectively. A backup regulating valve is installed on the secondary pipeline. The backup regulating valve has a controller connected to the main regulating valve via a signal, and the controller has an instrument panel. A solenoid valve control switch is connected to the controller via a signal and is also connected to the solenoid valve. The solenoid valve control switch controls the opening or closing of the solenoid valve. A gas source accelerator is connected to the outlet of a gas source device. The solenoid valve is installed on the pipeline between the outlet of the gas source device and the inlet of the gas source accelerator. The outlet of the gas source accelerator is connected to the backup regulating valve. The gas source accelerator has an internal acceleration structure. An atmospheric acceleration port is provided on the gas source accelerator. A sealing element is provided at the atmospheric acceleration port to connect to or isolate external atmospheric pressure. In case of emergency switching, after the solenoid valve is opened and inflated, the sealing element opens the atmospheric acceleration port, thereby using atmospheric pressure to accelerate the connection of the gas source and quickly reach the working pressure of the backup regulating valve. This eliminates the need for a higher-pressure gas source, reducing costs. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the structure of an important pipeline automatic control emergency compensation device provided in the embodiments of this application;

[0033] Figure 2 A schematic diagram of a gas source accelerator provided in an embodiment of this application from a first-view perspective;

[0034] Figure 3 A schematic diagram of a gas source accelerator provided in an embodiment of this application from a second perspective;

[0035] Figure 4 Provided for the embodiments of this application Figure 3 The main view;

[0036] Figure 5 This is a schematic diagram of the internal structure of the gas source accelerator provided in the embodiments of this application;

[0037] Figure 6 This is a schematic diagram of the structure of multiple accelerator tubes connected together, provided in an embodiment of this application;

[0038] Figure 7 This is a schematic diagram of the internal structure of the accelerator tube provided in an embodiment of this application.

[0039] Explanation of symbols in the diagram:

[0040] 1. Main pipeline; 2. Main pipeline regulating valve; 3. Secondary pipeline; 4. Backup regulating valve; 5. Controller; 6. Solenoid valve control switch; 7. Solenoid valve; 8. Air source device; 9. Air source accelerator; 10. Acceleration structure; 1000. Acceleration pipe; 11. Radial section; 12. Axial section; 13. Sealing component; 1300. Cover; 1301. Elastic plug; 1302. Lifting component. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0042] In existing technologies, backup measures typically involve installing an additional automatic control regulating valve in parallel with the regulating valve on the main pipeline. However, the simultaneous control of two sets of regulating valves can lead to system malfunctions, more unstable parameters, and large data fluctuations. Therefore, under normal operation of the main pipeline, the solenoid valve on the gas source controlling the regulating valve of the backup pipeline is closed, preventing the regulating valve from being used. Only when the main pipeline regulating valve fails is the solenoid valve on the gas source controlling the backup regulating valve activated and opened by instruments, allowing the backup regulating valve to connect to the gas source. The backup regulating valve can instantly engage automatic control to ensure the energy supply for operation. However, the following problems exist:

[0043] Due to the influence of the pipeline length connecting the backup regulating valve to the air source, and the fact that the backup regulating valve needs to meet the working pressure to operate normally, it will take a certain amount of time for the backup regulating valve to replace the main regulating valve. Therefore, it is difficult to achieve synchronous and precise control of the backup regulating valve when switching to the backup regulating valve due to a main regulating valve failure. In addition, if it is necessary to reduce the connection time, an air source with a pressure much higher than that of the regulating valve originally controlled by the main pipeline is required, which will increase the cost.

[0044] Example

[0045] This application provides an automatic control emergency compensation device for important pipelines to solve the problem in related technologies where the backup regulating valve needs a certain amount of time to replace the main regulating valve due to the influence of the pipeline length connected to the gas source by the backup regulating valve and the requirement of the backup regulating valve to meet the working pressure in order to work normally; making it difficult to achieve synchronous and precise control of the backup regulating valve when switching to the backup regulating valve in the event of a main regulating valve failure.

[0046] Please see Figures 1-3 This embodiment provides an automatic control emergency compensation device for important pipelines, which includes:

[0047] Main pipeline 1, on which a main pipeline regulating valve 2 is installed;

[0048] The secondary pipeline 3 is connected in parallel to the inlet and outlet of the main regulating valve 2, respectively; a backup regulating valve 4 is provided on the secondary pipeline 3; a controller 5 connected to the main regulating valve 2 is provided on the backup regulating valve 4, and the controller 5 has an instrument panel.

[0049] The solenoid valve control switch 6 is connected to the controller 5 via a signal and is also connected to the solenoid valve 7. The solenoid valve control switch 6 is used to control the opening or closing of the solenoid valve 7.

[0050] The gas source accelerator 9 is connected to the outlet of the gas source device 8; the solenoid valve 7 is installed on the pipe between the outlet of the gas source device 8 and the inlet of the gas source accelerator 9; the outlet of the gas source accelerator 9 is connected to the standby regulating valve 4; the gas source accelerator 9 has an acceleration structure 10 inside; the gas source accelerator 9 has an atmospheric acceleration port; the atmospheric acceleration port is provided with a sealing component 13 that connects to or isolates external atmospheric pressure.

[0051] In emergency switching, controller 5 controls the solenoid valve control switch 6 to open, thereby energizing and opening solenoid valve 7. After solenoid valve 7 opens and is inflated, the sealing component 13 opens the atmospheric acceleration port, thus utilizing atmospheric pressure to accelerate the connection of the air source and quickly reach the working pressure of the backup regulating valve 4. This eliminates the need for a higher-pressure air source, reducing costs. Furthermore, it ensures the stability of critical pipeline control; in the event of a fault, the backup regulating valve automatically activates instantly, ensuring safe and stable production in the workshop and significantly reducing production accidents. Automated control reduces manpower, saves labor costs, and achieves the goal of high efficiency and cost reduction.

[0052] Once the working pressure is reached, control the sealing component 13 to close the atmospheric acceleration port.

[0053] refer to Figure 6 and Figure 7 In some preferred embodiments, the acceleration structure 10 includes a plurality of acceleration tubes 1000 parallel to the outlet axis of the gas source accelerator 9; each acceleration tube 1000 includes a first tube segment and a second tube segment connected to each other; the inner diameter of the first tube segment is larger than the inner diameter of the second tube segment; and the second tube segment faces the outlet of the gas source accelerator 9.

[0054] The above structure utilizes the structure of a venturi tube; in the pipe, if the cross-sectional area of ​​the pipe gradually decreases from the wide part to the narrow part, the fluid will accelerate when passing through the narrow area, resulting in an increase in kinetic energy, thereby further accelerating the connection of the gas source and the rapid achievement of the working pressure on the basis of utilizing atmospheric pressure.

[0055] Each acceleration tube 1000 is connected to the inner arm of the gas source accelerator 9 via a connecting rod; the connecting rod fixes the position of the acceleration tube 1000.

[0056] Specifically, such as Figures 4-7 As shown, in some preferred embodiments, the internal channels of the gas source accelerator 9 include a first circular channel and a second circular channel arranged coaxially. The diameter of the first circular channel is larger than the diameter of the second circular channel, and the second circular channel is close to the outlet of the gas source accelerator 9.

[0057] Accelerator tube 1000 is located inside the first circular channel.

[0058] The above setup also utilizes the structural characteristics of a venturi tube to accelerate the gas flow rate, achieving multi-stage acceleration. Specifically, both the first and second circular channels accelerate the gas flow after it connects to the atmosphere.

[0059] Furthermore, the inlet pipe of the gas source accelerator 9 includes a radial section 11 and an axial section 12; one end of the radial section 11 is connected to the gas source device 8, and the other end extends into the first circular channel inside the gas source accelerator 9; the axial section 12 is located on the central axis of the internal channel of the gas source accelerator 9 and is connected to the radial section 11.

[0060] In the direction of the central axis of the internal channel of the gas source accelerator 9, the axial segment 12 extends from the first circular channel into the second circular channel. This enables the gas source device 8 to form an airflow path first after being filled with gas; then, after opening the atmospheric acceleration port, the flow velocity is accelerated along the airflow path. If the sealing part is opened first and then the solenoid valve 7 is opened, it is difficult to achieve such an effect.

[0061] refer to Figures 4-7 In some preferred embodiments, the outlet of the gas source accelerator 9 and the atmospheric acceleration port are located at both ends of the central axis of the internal channel of the gas source accelerator 9, respectively.

[0062] The sealing component 13 includes a cover 1300, which is connected to the outside of the gas source accelerator 9 via a hinge; the cover 1300 is provided with an elastic plug 1301 for blocking the atmospheric acceleration port.

[0063] The area of ​​the cover 1300 is larger than the area of ​​the atmospheric acceleration port; a lifting member 1302 is provided between the cover 1300 and the outer surface of the gas source accelerator 9, and around the atmospheric acceleration port; the lifting member 1302 is used to lift the cover 1300 so as to drive the cover 1300 to rotate with the hinge and open the atmospheric acceleration port.

[0064] The structure of the sealing component 13 has been described above. It mainly uses the lifting component 1302 to lift the cover 1300 to open the atmospheric acceleration port.

[0065] Furthermore, the lifting component 1302 is an electric push rod, and its two ends are fixedly connected to the outer surfaces of the cover 1300 and the air source accelerator 9, respectively; in this configuration, the atmospheric acceleration port can be opened and closed solely by the electric push rod.

[0066] Furthermore, the lifting component 1302 is an electric push rod, and it is fixedly installed on the outer surface of the air source accelerator 9; the telescopic end of the lifting component 1302 is in contact with the cover 1300.

[0067] The sealing component 13 also includes a spring, with its two ends fixedly connected to the outer surfaces of the cover 1300 and the air source accelerator 9, respectively. The spring allows for the rapid closure of the atmospheric acceleration port.

[0068] In some preferred embodiments, the pressure at the outlet of the gas source device 8 is the same as the outlet pressure of the gas source corresponding to the main regulating valve 2;

[0069] The main regulating valve 2 is also equipped with a monitoring device; the monitoring device is used to obtain the operating parameters of the main regulating valve 2.

[0070] The controller 5 is used to control the main regulating valve 2 to close when the operating parameters of the main regulating valve 2 are in an abnormal range, and at the same time control the solenoid valve control switch 6 to open, and control the sealing component 13 to open the atmospheric acceleration port after the solenoid valve 7 is opened.

[0071] With the above settings, the main regulating valve 2 can be switched when it malfunctions, thus allowing for inspection and maintenance of the main regulating valve 2.

[0072] This utility model provides an automatic control emergency compensation device for an important pipeline. The secondary pipeline 3 is connected in parallel at both ends to the inlet and outlet of the main regulating valve 2, respectively. A backup regulating valve 4 is provided on the secondary pipeline 3. The backup regulating valve 4 is equipped with a controller 5 connected to the main regulating valve via a signal connection. The controller 5 has an instrument panel. A solenoid valve control switch 6 is connected to the controller 5 via a signal connection and is also connected to a solenoid valve 7. The solenoid valve control switch 6 is used to control the opening or closing of the solenoid valve 7. A gas source accelerator 9 is connected to the outlet of the gas source device. The solenoid valve 7 is located on the pipeline between the outlet of the gas source device and the inlet of the gas source accelerator. The outlet of the gas source accelerator 9 is connected to the backup regulating valve 4. The gas source accelerator has an internal acceleration structure and an atmospheric acceleration port. The atmospheric acceleration port is equipped with a sealing component that connects to or isolates external atmospheric pressure.

[0073] This invention ensures the stability of critical pipeline control. In the event of a fault, a backup regulating valve automatically activates instantly, guaranteeing safe and stable production in the workshop and significantly reducing production accidents. Automated control reduces manpower and labor costs, achieving high efficiency and cost reduction. Furthermore, in emergency switching, the controller 5 controls the solenoid valve control switch 6 to open, energizing and opening the solenoid valve 7. After the solenoid valve 7 opens and is pressurized, the sealing component 13 opens the atmospheric acceleration port, utilizing atmospheric pressure to accelerate the connection of the gas source and quickly reach the working pressure of the backup regulating valve 4, eliminating the need for a higher-pressure gas source and reducing costs.

[0074] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0075] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0076] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic control emergency compensation device for important pipeline, characterized in that, include: The main pipeline is equipped with a main pipeline regulating valve. A secondary pipeline is connected in parallel at both ends to the inlet and outlet of the main regulating valve, respectively; a backup regulating valve is provided on the secondary pipeline; the backup regulating valve is equipped with a controller that is signal-connected to the main regulating valve, and the controller has an instrument panel; A solenoid valve control switch is connected to the controller via a signal and is also connected to a solenoid valve; the solenoid valve control switch is used to control the opening or closing of the solenoid valve. A gas source accelerator is connected to the outlet of a gas source device; the solenoid valve is installed on the pipe between the outlet of the gas source device and the inlet of the gas source accelerator; the outlet of the gas source accelerator is connected to the backup regulating valve; the gas source accelerator has an acceleration structure inside; the gas source accelerator has an atmospheric acceleration port; the atmospheric acceleration port is equipped with a sealing component that connects to or isolates external atmospheric pressure.

2. The vital line automatic control bailout device of claim 1, wherein: The acceleration structure includes multiple acceleration tubes parallel to the outlet axis of the gas source accelerator; each acceleration tube includes a first tube section and a second tube section connected to each other. The inner diameter of the first pipe section is larger than the inner diameter of the second pipe section; and the second pipe section faces the outlet of the gas source accelerator.

3. The vital line automatic control bailout device of claim 2, wherein: Each acceleration tube is connected to the inner arm of the gas source accelerator via a connecting rod.

4. The vital line automatic control bailout device of claim 2, wherein: The internal channels of the gas source accelerator include a first circular channel and a second circular channel arranged coaxially; the diameter of the first circular channel is larger than the diameter of the second circular channel; the second circular channel is close to the outlet of the gas source accelerator. The acceleration tube is located inside the first circular channel.

5. The vital line automatic control bailout device of claim 4, wherein: The inlet pipe of the gas source accelerator includes a radial section and an axial section; one end of the radial section is connected to the gas source device, and the other end extends into the first circular channel inside the gas source accelerator; the axial section is located on the central axis of the internal channel of the gas source accelerator and is connected to the radial section. In the direction of the central axis of the internal channel of the gas source accelerator, the axial segment extends from the first circular channel into the second circular channel.

6. The automatic control emergency compensation device for critical pipelines according to claim 4, characterized in that: The outlet and atmospheric acceleration port of the gas source accelerator are located at opposite ends of the central axis of the internal channel of the gas source accelerator. The sealing component includes a cover, which is connected to the outside of the gas source accelerator via a hinge; the cover is provided with an elastic plug to block the atmospheric acceleration port; the area of ​​the cover is larger than the area of ​​the atmospheric acceleration port; a lifting component is provided between the cover and the outer surface of the gas source accelerator, and around the atmospheric acceleration port. The lifting component is used to lift the cover, thereby causing the cover to rotate via the hinge and opening the atmospheric acceleration port.

7. The automatic control emergency compensation device for critical pipelines according to claim 6, characterized in that: The lifting component is an electric push rod, and its two ends are fixedly connected to the outer surfaces of the cover and the air source accelerator, respectively.

8. The automatic control emergency compensation device for critical pipelines according to claim 6, characterized in that: The lifting component is an electric push rod, which is fixedly installed on the outer surface of the air source accelerator; the telescopic end of the lifting component is fitted with the cover. The sealing component also includes a spring, with its two ends fixedly connected to the outer surfaces of the cover and the gas source accelerator, respectively.

9. The automatic control emergency compensation device for critical pipelines according to claim 1, characterized in that: The outlet pressure of the gas source device is the same as the outlet pressure of the gas source corresponding to the main regulating valve.

10. The automatic control emergency compensation device for critical pipelines according to claim 1, characterized in that: The main control valve is also equipped with a monitoring device; the monitoring device is used to acquire the operating parameters of the main control valve. The controller is used to close the main regulating valve when the operating parameters of the main regulating valve are within an abnormal range, and at the same time control the solenoid valve control switch to open, and control the sealing component to open the atmospheric acceleration port after the solenoid valve is opened.

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