Intelligent gas pressure regulator

Abstract

The invention belongs to the technical field of fuel gas equipment, and provides an intelligent fuel gas pressure regulator. The intelligent fuel gas pressure regulator comprises an intelligent controller, an inlet valve, a pressure regulating assembly, a sensor module and an outlet valve, the pressure adjusting assembly comprises a pressure adjusting motor, an actuator and an adjusting valve, the adjusting valve is installed on the pipeline and connected with one end of the actuator, the other end of the actuator is connected with the pressure adjusting motor, and the pressure adjusting motor drives the actuator to adjust the adjusting valve so as to adjust the opening degree of the pipeline; the sensor module comprises a first pressure sensor and a flow sensor; the intelligent controller is connected with the sensor module and the voltage regulating motor, and the voltage regulating motor is associated with the sensor module. The pressure regulator can automatically control and regulate the outlet pressure, completely adapts to the change of the rear-end gas demand, is accurate and quick in response, and can effectively eliminate the problems of low efficiency and low accuracy of manual operation; precise adjustment is achieved, and gas loss is effectively reduced; manpower is effectively saved; and the labor intensity is reduced.

Description

Technical Field

[0001] This invention belongs to the field of gas equipment technology, specifically relating to a smart gas pressure regulator. Background Technology

[0002] Gas pressure regulators (also known as building pressure regulating boxes) used at the end of gas transmission and distribution are usually self-regulating structures, consisting of a regulator, shut-off valve, etc., and are mainly used in residential buildings and small industrial and commercial users. They suffer from the disadvantages of being numerous and dispersed, requiring gas companies to have maintenance personnel conduct regular inspections or perform on-site repairs after receiving repair calls, leading to delays and safety hazards. In recent years, some "intelligent" pressure regulators have emerged, but these mostly only detect, record, and alarm on pressure, temperature, and other data, still requiring on-site intervention by staff. Furthermore, maintenance personnel need to frequently adjust the outlet pressure according to changes in user demand. Due to the large number of gas pressure regulators at the gas company's end points, scattered across various residential communities and industrial and commercial users, a significant number of skilled maintenance personnel are needed for on-site adjustments, resulting in high workloads and issues such as low accuracy and efficiency. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention provides a smart gas pressure regulator that can automatically control and adjust the outlet pressure, fully adapting to changes in downstream gas demand. Its response is precise and rapid, effectively eliminating the inefficiencies and low accuracy associated with manual operation; achieving precise adjustment and effectively reducing gas loss; and effectively saving manpower and reducing labor intensity.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The intelligent gas pressure regulator includes an intelligent controller and an inlet valve, a pressure regulating component, a sensor module, and an outlet valve arranged sequentially in the pipeline. The pressure regulating assembly includes a pressure regulating motor, an actuator, and a regulating valve. The regulating valve is installed on the pipeline and connected to one end of the actuator. The other end of the actuator is connected to the pressure regulating motor. The pressure regulating motor drives the actuator to adjust the regulating valve to control the opening of the pipeline. The sensor module includes a first pressure sensor and a flow sensor; The intelligent controller is connected to the sensor module and the voltage regulating motor, and the voltage regulating motor is associated with the sensor module.

[0005] In one embodiment of this application, the smart controller is connected to the Internet of Things.

[0006] In one embodiment of this application, a first shut-off valve is further included. The first shut-off valve is installed on the pipeline between the pressure regulating component and the inlet valve. The first shut-off valve is connected to the intelligent controller, and the intelligent controller controls the first shut-off valve to open and close the pipeline.

[0007] In one embodiment of this application, a second pressure sensor is further included. The second pressure sensor is installed on the pipeline between the pressure regulating assembly and the inlet valve. The second pressure sensor is connected to the intelligent controller and associated with the first shut-off valve.

[0008] In one embodiment of this application, a second shut-off valve is further included. The second shut-off valve is installed on the pipeline and located at the front end of the regulating valve. The second shut-off valve is a mechanical shut-off valve.

[0009] In one embodiment of this application, the second shut-off valve includes: A valve housing having a valve cavity, the valve housing being connected to the pipeline, and the valve cavity being in communication with the pipeline; The valve disc is located inside the pipeline and is adapted to the valve port inside the pipeline. A reset lever is inserted through the valve housing, with one end connected to the valve disc and the other end extending out of the valve housing; A return spring is sleeved on the return lever, with one end abutting against the valve body and the other end abutting against the valve disc; A diaphragm is disposed within the valve cavity, dividing the valve cavity into a first valve cavity and a second valve cavity. The first valve cavity is connected to the pipeline, and the second valve cavity is provided with a small hole to connect to the outside. A locking bolt is located inside the first valve chamber, connected to the diaphragm, and capable of locking with the reset lever; A pressure regulating knob is adjustablely mounted on the valve housing; The pressure adjusting spring is connected at one end to the locking bolt and at the other end to the pressure adjusting knob.

[0010] In one embodiment of this application, the locking bolt has an L-shaped structure, with one end connected to the diaphragm and the other end cooperating with the reset lever. The locking bolt is rotatably connected to the valve housing near the end cooperating with the reset lever. The pressure regulating spring is connected to the back corner of the L-shaped structure of the locking bolt, away from the end connected to the diaphragm.

[0011] In one embodiment of this application, an alarm module is further included, which is connected to the intelligent controller and associated with the sensor module and the second pressure sensor.

[0012] In one embodiment of this application, a solar power supply module and a positioning module connected to the intelligent controller are also included; the solar power supply module supplies power to the intelligent controller, the voltage regulating motor and the first shut-off valve.

[0013] In one embodiment of this application, a filter is also included, which is installed on the pipeline at the outlet end of the inlet valve.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The intelligent gas pressure regulator of this application detects changes in outlet pressure and flow rate by installing a sensor module at the outlet end of the regulator. It reflects changes in gas demand based on these changes in pressure and flow rate, and intelligently controls the pressure regulating component to adjust the gas supply pressure and flow rate based on the detected pressure and flow rate, ensuring stable outlet gas pressure and flow rate and automatically adapting to gas demand. This regulator, through the cooperation of the sensor module, intelligent controller, and pressure regulating component, monitors changes in gas demand, adjusts pressure and flow rate based on the monitoring results, and then monitors and provides feedback on the adjusted pressure and flow rate, effectively ensuring accurate regulation and stable and reliable output.

[0015] This pressure regulator can adaptively adjust its pressure, eliminating the need for on-site personnel. In emergencies (such as pipe bursts or abnormal flow), it can quickly and automatically cut off the gas supply, reducing the risk of accidents. When downstream gas demand changes (variations in the number of users, summer / winter gas demand, etc.), it can automatically and quickly adapt and adjust without requiring on-site personnel. While meeting normal gas demand, it minimizes outlet pressure, significantly reducing gas loss and the workload of maintenance personnel, while maintaining high accuracy and efficiency. This intelligent gas pressure regulator has a simple structure and is convenient to install, set up, and operate.

[0016] This intelligent gas pressure regulator is equipped with a first shut-off valve and a second pressure sensor at the front end of the pressure regulating component. It can automatically determine whether there is an abnormal gas supply (such as excessive pressure, abnormal flow, pipe burst, etc.) and make intelligent switch adjustments based on the judgment results. When an abnormality occurs, it cuts off the gas supply (automatic cut-off or remote control cut-off) to improve gas supply safety and avoid gas supply emergencies.

[0017] This intelligent gas pressure regulator is equipped with a mechanical shut-off valve (second shut-off valve). In the event of failure of the pressure regulating component and / or the first shut-off valve, the second shut-off valve can automatically cut off the gas supply to protect downstream gas-consuming equipment. It can then be manually reset to open the valve, making it safer and more reliable. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0019] Figure 1 This is a schematic diagram of the structure of the intelligent gas pressure regulator of the present invention.

[0020] Figure 2 This is a schematic diagram of the pressure regulating assembly and the second shut-off valve.

[0021] Figure label: 10. Piping; 101. Valve port; 1. Imported valve; 2. Filter; 3. First shut-off valve; 31. Second pressure sensor; 4. Second shut-off valve; 41. Valve body; 410. Valve chamber; 42. Valve disc; 43. Reset rod; 44. Reset spring; 45. Diaphragm; 46. Locking bolt; 47. Pressure adjusting knob; 48. Pressure adjusting spring; 5. Pressure regulating assembly; 51. Control valve; 52. Actuator; 53. Pressure regulating motor; 6. Sensor module; 7. Outlet valve; 8. Intelligent controller. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "axial," "radial," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention.

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] This invention provides a smart gas pressure regulator, such as... Figure 1 As shown, the intelligent gas pressure regulator includes a pipeline 10, an intelligent controller 8, and an inlet valve 1, a filter 2, a pressure regulating component 5, a sensor module 6, an outlet valve 7, etc., arranged sequentially through the pipeline 10.

[0030] Among them, inlet valve 1 and outlet valve 7 are both ball valves, located at both ends of pipeline 10, and connected to the gas supply pipe and the user's gas pipe respectively.

[0031] The pressure regulating assembly 5 includes a pressure regulating motor 53, an actuator 52, and a regulating valve 51. The regulating valve 51 is installed on the pipeline 10, with its valve core located inside the pipeline 10 and corresponding to the valve port 101. The valve core of the regulating valve 51 is connected to one end (output end) of the actuator 52, and the other end (input end) of the actuator 52 is connected to the output end of the pressure regulating motor 53. The operation of the pressure regulating motor 53 drives the actuator 52, which in turn drives the regulating valve 51 to regulate the flow channel opening within the pipeline 10, thereby adjusting the pressure and flow rate of the fluid within the pipeline 10.

[0032] In one implementation, such as Figure 1 and Figure 2 As shown, the actuator 52 includes a housing, a limiting diaphragm, an adjusting spring, an upper connecting block, a lower connecting block, and a transmission winding rod. The housing is connected to the pipeline 10 or the outer shell of the regulating valve 51. The limiting diaphragm is disposed within the housing, dividing the housing cavity into upper and lower parts. The lower connecting block is installed through the middle of the limiting diaphragm; the adjusting spring is located in the upper part of the housing cavity, with its lower end connected to the lower connecting block; the upper end of the adjusting spring is connected to the upper connecting block, which is connected to the output end of the voltage regulating motor 53. The transmission winding rod is located in the lower part of the housing cavity, with its middle part rotatably connected to the housing. One end of the transmission winding rod is hinged to the lower connecting block, and the other end is hinged to the valve stem of the regulating valve 51, with the valve stem connected to the valve core of the regulating valve 51. When the pressure regulating motor 53 is running, it drives the upper connecting block to move up or down. The force is applied to the lower connecting block and the limiting diaphragm through the adjusting spring. The limiting diaphragm and the lower connecting block are displaced up or down, thereby driving the transmission winding rod to rotate. This drives the valve core of the regulating valve 51 to move down or down, adjusting the relative position / distance between the valve core and the valve port 101, thereby regulating the pressure and flow rate of the fluid in the pipeline 10.

[0033] The sensor module 6 is located on the rear pipeline 10 of the pressure regulating component 5. The sensor module 6 includes a first pressure sensor and a flow sensor, etc.

[0034] The intelligent controller 8 is connected to the sensor module 6 and the pressure regulating motor 53, which is associated with the sensor module 6. The intelligent controller 8 can receive fluid pressure and flow information detected by the sensor module 6, and generate control commands through intelligent analysis, sending control commands to the pressure regulating motor 53 to control its operation.

[0035] This intelligent gas pressure regulator detects changes in outlet pressure and flow rate using a sensor module 6 at the outlet. It reflects changes in gas demand based on these changes and intelligently controls the pressure regulating component 5 to adjust the gas supply pressure and flow rate, ensuring stable outlet pressure and flow and automatically adapting to demand. Through the cooperation of the sensor module 6, intelligent controller 8, and pressure regulating component 5, the regulator monitors changes in gas demand, adjusts pressure and flow rate based on the monitoring results, and monitors and provides feedback on the adjusted pressure and flow rate, effectively ensuring accurate control and stable, reliable output.

[0036] Its intelligent controller 8 is connected to the Internet of Things (IoT). The intelligent controller 8 can transmit detection signals, control status signals, and abnormal alarm signals to the outside world through the IoT, as well as receive remote control signals through the IoT, enabling the gas intelligent pressure regulator to achieve remote monitoring.

[0037] In one embodiment, the intelligent gas pressure regulator further includes a first shut-off valve 3. The first shut-off valve 3 is installed on the pipeline 10 between the pressure regulating assembly 5 and the inlet valve 1, located at the front end of the pressure regulating assembly 5. The first shut-off valve 3 is an intelligent control valve, connected to an intelligent controller 8, which controls the opening and closing of the pipeline 10. The first shut-off valve 3 can be directly controlled by the intelligent controller 8, or it can be remotely controlled by the intelligent controller 8. During normal operation, the first shut-off valve 3 is in the open state; in the event of an abnormality (such as leakage), the first shut-off valve 3 quickly closes.

[0038] Furthermore, a second pressure sensor 31 is included. This second pressure sensor 31 is installed on the pipeline 10 between the pressure regulating component 5 and the inlet valve 1, specifically at the front end of the valve port of the first shut-off valve, to monitor the fluid pressure at the gas supply end. The second pressure sensor 31 is connected to the intelligent controller 8 and is associated with the first shut-off valve 3. The pressure signal detected by the second pressure sensor 31, as well as the pressure and flow signals detected by the sensor module 6, are transmitted to the intelligent controller 8 in real time. The intelligent controller 8 determines whether there is an abnormality in the gas supply (such as excessive pressure, abnormal flow, pipe burst, etc.), thereby controlling the opening and closing of the first shut-off valve 3. The second pressure sensor 31 and the sensor module 6 achieve signal coordination through the intelligent controller 8, and achieve coordinated regulation through the first shut-off valve 3 and the pressure regulating component 5, forming a regulatory coordination of "feedforward prediction" and "feedback correction".

[0039] This pressure regulator can adaptively adjust its operation without requiring on-site personnel intervention. In emergencies (such as pipe bursts or abnormal flow rates), it can quickly respond and automatically cut off the gas supply, reducing the risk of accidents. This intelligent gas pressure regulator features a first shut-off valve 3 and a second pressure sensor 31 at the front end of the pressure regulating component 5. It can automatically determine if there are any abnormal gas supply conditions (such as excessive pressure, abnormal flow rates, or pipe bursts) and intelligently adjust the switch accordingly. In the event of an abnormality, it cuts off the gas supply (automatic or remote control), improving gas supply safety and preventing gas supply emergencies.

[0040] like Figure 1 and Figure 2 As shown, the intelligent gas pressure regulator also includes a second shut-off valve 4. This second shut-off valve 4 is installed on the pipeline 10, located between the front end of the regulating valve 51 and the first shut-off valve 3. This second shut-off valve 4 is a mechanical shut-off valve, capable of opening and closing the valve port 101 on the pipeline 10.

[0041] like Figure 2 As shown, the second shut-off valve 4 includes a valve body 41, a valve disc 42, a reset lever 43, a reset spring 44, a diaphragm 45, a locking bolt 46, a pressure regulating knob 47, and a pressure regulating spring 48, etc.

[0042] Its valve housing 41 has a valve cavity 410 with good sealing performance. The valve housing 41 is connected to the pipeline 10, and the valve cavity 410 is in communication with the pipeline 10. The pressure in the pipeline 10 can be transmitted to the valve cavity 410.

[0043] Valve disc 42 is located inside pipeline 10 and corresponds to and is adapted to valve port 101 within pipeline 10. It can abut against valve port 101 to cut off the flow path of pipeline 10. Preferably, the axial direction of valve port 101 is perpendicular to the axial direction of pipeline 10, and the axis of pipeline 10 coincides radially with the plane of valve port 101. The valve core of regulating valve 51 is adapted to one / upper side of valve port 101, and the valve disc 42 of second shut-off valve 4 is adapted to the other / lower side of valve port 101. That is, regulating valve 51 and second shut-off valve 4 share valve port 101. The arrangement of regulating valve 51, second shut-off valve 4, and valve port 101 makes the structure of intelligent gas pressure regulating valve simpler and more compact, and the fluid flow direction changes from radial flow to axial flow at valve port 101, which is more conducive to stable regulation of flow and pressure and effectively avoids drastic fluctuations in flow and pressure during regulation.

[0044] A reset rod 43 is mounted on the valve housing 41, with one end extending into the pipe 10 and connecting to the valve disc 42, and the other end passing through the valve cavity 410 and extending out of the valve housing 41. A reset spring 44 is sleeved on the end of the reset rod 43 near the valve disc 42, with one end of the reset spring 44 abutting against the valve disc 42 and the other end abutting against the valve housing 41. The reset rod 43 can be manually pulled to move the valve disc 42 away from the valve port 101, thus resetting the valve disc 42.

[0045] A diaphragm 45 is disposed within the valve cavity 40, located on one side of the reset lever 43 (e.g., the right side). The diaphragm 45 is circumferentially connected to the inner wall of the valve housing 41, dividing the valve cavity 410 into a first valve cavity and a second valve cavity. The first valve cavity is connected to the pipeline 10, allowing gas from the pipeline 10 to enter the first valve cavity; the second valve cavity has a small hole that connects to the outside.

[0046] The locking bolt 46 is located in the first valve chamber. The locking bolt 46 is connected to the diaphragm 45 and can be locked in place with the reset lever 43.

[0047] The pressure regulating knob 47 is mounted on the valve housing 41 (located on the left side) and can be adjusted relative to the valve housing 41.

[0048] The pressure regulating spring 48 is installed inside the valve housing 41, with one end connected to the locking bolt 46 and the other end connected to the pressure regulating knob 47.

[0049] In use, the pressure regulating knob 47 is adjusted via the pressure regulating spring 48, which acts on the locking bolt 46, locking the bolt 46 in conjunction with the reset lever 43. At this time, the reset spring 44 is compressed, the valve disc 42 moves away from the valve port 101, and the second shut-off valve 4 is in the open state. When the pressure in the pipeline 10 is higher than the set value of the second shut-off valve 4, the diaphragm 45 moves away from the reset lever 43 and the pressure regulating spring 48 under the action of gas pressure, causing the locking bolt 46 to move against the force of the pressure regulating spring 48, thus releasing the lock between the locking bolt 46 and the reset valve lever 43. Under the action of the reset spring 44, the reset lever 43 and the valve disc 42 quickly move towards the valve port 101, causing the valve disc 42 to abut against the valve port 101 and close the valve port 101. After troubleshooting, the reset lever 43 is manually pulled to lock the reset lever 43 in conjunction with the locking bolt 46, and the second shut-off valve 4 is reopened. During normal operation, the second shut-off valve 4 is in the open state.

[0050] In one embodiment, the locking bolt 46 has an L-shaped structure, with one end connected to the diaphragm 45 and the other end engaging with the reset rod 43. The locking bolt is rotatably mounted on the valve housing 41 via a pin at the end near the end engaging with the reset rod 43, meaning the reset rod 43 is rotatably connected to the valve housing 41. The pressure regulating spring 48 is connected to the back side of the L-shaped corner of the locking bolt 46, away from the end connected to the diaphragm 45. After adjustment, the pressure regulating spring 48 pulls the locking bolt 46, locking it in place with the reset rod 43, and the second shut-off valve 4 is open. When the pressure increases, the diaphragm 45 moves, overcoming the force of the pressure regulating spring 48, causing the locking bolt 46 to rotate around the pin, releasing the locking bolt 46 from the reset rod 43, and the second shut-off valve 4 closes, cutting off the flow path of the pipeline.

[0051] The second shut-off valve 4, with its mechanical action, ensures that the intelligent gas pressure regulator can automatically or manually shut off the gas supply in the event of failure of the first shut-off valve 3 and the pressure regulating assembly 5, effectively protecting downstream gas-using equipment and enhancing safety and reliability. After normal operation is restored, the second shut-off valve 4 can be quickly reset manually, making it convenient to use.

[0052] Preferably, the smart gas pressure regulator also includes an alarm module, which is connected to the smart controller 8 and associated with the sensor module 6, the second pressure sensor 31, etc. When abnormal pressure or flow is detected, an alarm signal is issued. This can include audible and visual alarms, alarm display prompts on the smart controller, and sending alarm signals to remote terminals via the Internet of Things.

[0053] The intelligent gas pressure regulator also includes a solar power supply module and a positioning module connected to the intelligent controller. The solar power supply module supplies power to the intelligent controller 8, the pressure regulating motor 53, the first shut-off valve 3, etc. The positioning module provides positioning information, enabling the intelligent gas pressure regulator to be located for easy equipment management.

[0054] The intelligent gas pressure regulator also includes a filter 2, which is installed on pipeline 10 at the outlet end of inlet valve 1. Specifically, the filter is located after inlet valve 1 and before the first shut-off valve 3 and the second pressure sensor 31. All gas entering the intelligent gas pressure regulator is filtered by this filter 2, ensuring the normal and efficient operation of subsequent components such as the first shut-off valve 3, the second pressure sensor 31, the second shut-off valve 4, the regulating valve 51, and the sensor module 6. This effectively guarantees the stability of the intelligent gas pressure regulator's operation and extends its service life.

[0055] In addition, the intelligent gas pressure regulator controls its operation through the following control methods.

[0056] Specifically, the control method of the intelligent gas pressure regulator includes a normal operating condition adaptive regulation process, an abnormal operating condition graded linkage handling process, and a remote collaborative intelligent management and control process.

[0057] The adaptive control process under normal operating conditions includes: collecting the outlet pressure (collected by the first pressure sensor), outlet flow rate (collected by the flow sensor), and inlet pressure (collected by the second pressure sensor) of the gas pressure regulator; and performing data filtering and fusion based on a multi-sensor data fusion algorithm. Based on the fused flow data, the flow rate change is calculated using a sliding window flow rate change algorithm, and the trend of gas demand changes is predicted in conjunction with historical gas consumption data. Historical gas consumption data is stored in the controller's built-in storage module, recording 24-hour / 7-day gas consumption patterns. Based on the predicted gas demand, real-time inlet pressure, and real-time outlet pressure, the optimal target value of the outlet pressure and the target opening of the regulating valve are calculated using a pressure-flow dual-parameter dynamic optimization algorithm. Then, an electrical signal command is generated based on the target opening to drive the pressure regulating motor to adjust the opening of the regulating valve. The adjusted outlet pressure and flow data are collected and compared with the optimal target value. If a deviation exists, a correction control command is generated until the outlet pressure and flow match the optimal target value.

[0058] When gas demand increases (flow rate rises), the optimal target value of the outlet pressure is appropriately increased within the specified pressure range, while the opening of the regulating valve is increased to ensure that the gas supply flow meets the demand and avoids a sudden drop in pressure. When gas demand decreases (flow rate falls), the optimal target value of the outlet pressure is reduced while meeting the minimum gas supply pressure, and the opening of the regulating valve is decreased to minimize pressure loss during gas transmission. When gas demand is stable, the opening of the regulating valve is dynamically fine-tuned to ensure that the outlet pressure remains stable within the optimal target value ±0.025MPa, achieving precise pressure stabilization.

[0059] During startup, the system automatically reads preset basic parameters and, in conjunction with the initial inlet pressure value, automatically calibrates the initial optimal value of the outlet pressure.

[0060] It also includes recording control data under different inlet pressures and different gas demand, and optimizing the pressure-flow linkage coefficient and the optimal target value calculation model through a self-learning algorithm.

[0061] The tiered and coordinated handling of abnormal operating conditions includes: a preset abnormality judgment model that integrates real-time values, change rates, and deviations of inlet pressure, outlet pressure, and flow rate, and identifies abnormal operating conditions as minor or severe anomalies using an abnormality feature matching algorithm. When a minor anomaly is identified, an early warning is activated and an anomaly correction algorithm is executed to adjust the control valve opening to restore the outlet pressure and flow rate to the normal range. When a severe anomaly is identified, a severe early warning is activated, the control valve is fully closed, and a closing command is sent to the first shut-off valve, achieving dual electronic shut-off. When electronic shut-off fails or the pressure exceeds the electronic shut-off threshold, the mechanical automatic shut-off of the second shut-off valve is triggered.

[0062] The automatic mechanical shut-off process of the second shut-off valve includes: when the pipeline pressure exceeds the preset mechanical shut-off threshold of the second shut-off valve, the pipeline pressure is transmitted to the first valve chamber, driving the diaphragm to shift, causing the locking bolt to rotate, and releasing the lock with the reset lever; the reset lever is reset under the action of the reset spring, causing the valve disc to abut against the valve port, thereby achieving mechanical forced shut-off.

[0063] The remote collaborative intelligent control process includes: uploading locally collected operating data to the remote monitoring platform in real time; receiving parameter modification instructions from the remote monitoring platform and remotely modifying the preset basic parameters; receiving manual control instructions from the remote monitoring platform and controlling the pressure regulating motor or the first shut-off valve to perform corresponding actions; and using the remote monitoring platform to batch send parameters, view status, and screen anomalies for multiple smart gas pressure regulators.

[0064] The intelligent gas pressure regulator of this invention is an intelligent control system integrating real-time sensing, intelligent analysis, precise control, closed-loop feedback, multi-level protection, and remote collaboration. Through the coordination of control strategies such as multi-sensor (first pressure sensor, flow sensor, and second pressure sensor) data fusion, dynamic adaptive algorithms, and hierarchical linkage control, it achieves fully automatic, high-precision, and fast-response control of gas pressure / flow, and can dynamically adapt to gas usage scenarios, maximizing gas loss reduction while ensuring gas supply stability. Furthermore, through hierarchical protection strategies, it maximizes automatic control in the face of abnormal operating conditions, reducing / avoiding accidental cut-off, while ensuring safe and stable gas supply operation.

Claims

1. A smart gas pressure regulator, characterized in that, It includes an intelligent controller (8) and an inlet valve (1), a pressure regulating component (5), a sensor module (6), and an outlet valve (7) arranged sequentially through a pipeline (10); The pressure regulating assembly (5) includes a pressure regulating motor (53), an actuator (52), and a regulating valve (51). The regulating valve (51) is installed on the pipeline (10) and connected to one end of the actuator (52). The other end of the actuator (52) is connected to the pressure regulating motor (53). The pressure regulating motor (53) drives the actuator (52) to regulate the regulating valve (51) to control the opening of the pipeline (10). The sensor module (6) includes a first pressure sensor and a flow sensor; The intelligent controller (8) is connected to the sensor module (6) and the voltage regulating motor (53), and the voltage regulating motor (53) is associated with the sensor module (6).

2. The intelligent gas pressure regulator according to claim 1, characterized in that, The intelligent controller (8) is connected to the Internet of Things.

3. The intelligent gas pressure regulator according to claim 2, characterized in that, It also includes a first shut-off valve (3), which is installed on the pipeline (10) between the pressure regulating assembly (5) and the inlet valve (1). The first shut-off valve (3) is connected to the intelligent controller (8), and the intelligent controller (8) controls the first shut-off valve (3) to switch the pipeline (10) on and off.

4. The intelligent gas pressure regulator according to claim 3, characterized in that, It also includes a second pressure sensor (31), which is installed on the pipeline (10) between the pressure regulating assembly (5) and the inlet valve (1). The second pressure sensor (31) is connected to the intelligent controller (8) and associated with the first shut-off valve (3).

5. The intelligent gas pressure regulator according to claim 1 or 4, characterized in that, It also includes a second shut-off valve (4), which is installed on the pipeline (10) and located at the front end of the regulating valve (51). The second shut-off valve (4) is a mechanical shut-off valve.

6. The intelligent gas pressure regulator according to claim 5, characterized in that, The second shut-off valve (4) includes: A valve housing (41) having a valve cavity (410) is connected to the pipeline (10), and the valve cavity (410) is in communication with the pipeline (10); The valve disc (42) is located inside the pipeline (10) and is adapted to the valve port (101) inside the pipeline; The reset lever (43) is inserted through the valve housing (41), with one end connected to the valve disc (42) and the other end extending out of the valve housing (41). A reset spring (44) is sleeved on the reset pull rod (43), with one end abutting against the valve body (41) and the other end abutting against the valve disc (42); A membrane (45) is disposed in the valve cavity (410) to divide the valve cavity (410) into a first valve cavity and a second valve cavity. The first valve cavity is connected to the pipeline (10), and the second valve cavity is provided with a small hole to connect to the outside. A locking bolt (46) is located in the first valve cavity, connected to the diaphragm (45), and can be locked in place with the reset lever (43); A pressure regulating knob (47) is adjustablely mounted on the valve housing (41); The pressure regulating spring (48) is connected at one end to the locking bolt (46) and at the other end to the pressure regulating button (47).

7. The intelligent gas pressure regulator according to claim 6, characterized in that, The locking bolt (46) has an L-shaped structure, with one end connected to the diaphragm (45) and the other end engaged with the reset lever (43). The locking bolt (46) is rotatably connected to the valve housing (41) near the end engaged with the reset lever (43). The pressure regulating spring (48) is connected to the back corner of the L-shaped structure of the locking bolt (46), away from the end connected to the diaphragm (45).

8. The intelligent gas pressure regulator according to claim 4, characterized in that, It also includes an alarm module, which is connected to the intelligent controller (8) and is associated with the sensor module (6) and the second pressure sensor (31).

9. The intelligent gas pressure regulator according to claim 8, characterized in that, It also includes a solar power supply module and a positioning module connected to the intelligent controller; the solar power supply module supplies power to the intelligent controller (8), the voltage regulating motor (53) and the first shut-off valve (3).

10. The intelligent gas pressure regulator according to claim 1, characterized in that, It also includes a filter (2), which is installed on the pipeline (10) at the outlet end of the inlet valve (1).

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