Intelligent pressure reducing valve and remote dynamic control system

Abstract

The invention discloses an intelligent pressure reducing valve and a remote dynamic control system, and relates to the field of pressure reducing valve control, and the intelligent pressure reducing valve comprises a main valve body arranged on a water pipeline, a digital pressure stabilizing controller used for locally operating and setting a target pressure value, and a sensor module used for collecting pressure and flow real-time data, the electric pilot valve is used for receiving a control signal of the digital voltage stabilization controller and adjusting the opening degree of the main valve body; closed-loop control logic is adopted in the whole working process, accurate and stable control over the outlet pressure is achieved through the cooperative working mode of real-time collection of the sensor module, analysis and judgment of the digital pressure stabilization controller and dynamic adjustment of the electric pilot valve, and the core technical effects of working condition self-adaption, accurate and stable pressure and intelligent linkage operation and maintenance are achieved. Data are collected in real time through the front-end pressure / flow sensor and the rear-end pressure / flow sensor, when the rear-end pressure deviates from the target pressure value, the opening degree of the electric pilot valve is dynamically adjusted, pressure drift and oscillation of a traditional valve are avoided, and the pressure stability of a water supply pipe network is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of pressure reducing valve control, and particularly to an intelligent pressure reducing valve and a remote dynamic control system. Background Technology

[0002] A pressure reducing valve is a valve that reduces the inlet pressure to a desired outlet pressure by adjusting the pressure, and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. Pressure reducing valves are widely used in high-rise buildings, areas with excessively high water pressure in urban water supply networks, mines, and other applications to ensure that each water point in the water supply system receives appropriate service water pressure and flow.

[0003] Traditional pressure reducing valves have a fixed pilot valve, which cannot be dynamically adjusted once it is set. When the downstream flow is too large, the pressure at the outlet of the pressure reducing valve will be unstable. When the upstream pump stops, if the pressure difference between the upstream and downstream of the pressure reducing valve is insufficient, the water pump cannot be started in time, causing the pressure reducing valve to close unexpectedly.

[0004] Therefore, this invention proposes an intelligent pressure reducing valve and a remote dynamic control system. Summary of the Invention

[0005] This invention provides an intelligent pressure reducing valve and a remote dynamic control system, which can solve the problem in the prior art where the fixed pilot valve cannot adjust the pilot valve opening according to the real-time pressure value, resulting in unstable pressure at the outlet of the pressure reducing valve when the downstream flow is too large.

[0006] To achieve the above objectives, this application adopts the following technical solution: In a first aspect, an intelligent pressure reducing valve is provided, comprising a main valve body disposed on a water supply pipeline, the water supply pipeline being divided into a first inlet pipeline and a second outlet pipeline, characterized in that it further comprises a digital pressure regulator for local operation to set a target pressure value, a sensor module for collecting real-time pressure and flow data of the front inlet and rear outlet of the main valve body, and an electric pilot valve for receiving control signals from the digital pressure regulator and adjusting the opening of the main valve body according to the control signals; Sensor modules installed at the front and rear ends of the main valve body collect real-time pressure and flow data at the front inlet and rear outlet of the main valve body. When the pressure at the rear end of the main valve body is lower than the target pressure value set locally, the digital pressure regulator dynamically adjusts the opening of the electric pilot valve to stabilize the pressure at the rear end of the main valve body at the target pressure value.

[0007] In conjunction with the first aspect above, in one possible implementation, a shut-off valve is provided on the first inlet pipe to control the opening and closing of the first inlet pipe; the second outlet pipe is located downstream of the main valve body and the first inlet pipe and the second outlet pipe are connected through the main valve body; a shut-off valve is provided on the second outlet pipe.

[0008] In conjunction with the first aspect above, in one possible implementation, the digital voltage regulator controller has a built-in power supply for powering the sensor module and the electric pilot valve.

[0009] In conjunction with the first aspect above, in one possible implementation, the digital voltage regulator is used to perform voltage regulation control based on real-time pressure and flow data collected by the sensor module and the target pressure value set by the user's local operation. Includes: a sensor module that collects real-time pressure and flow data at the front inlet and rear outlet of the main valve body and feeds it back to the digital pressure regulator; The digital pressure regulator marks the real-time pressure and flow data as: inlet pressure Export pressure Pout and traffic Q ; The digital voltage regulator controls the outlet pressure Pout Compare with the target pressure value: If export pressure Pout <Target pressure value; The digital pressure regulator sends a first control signal to the electric pilot valve to increase the valve opening; If export pressure Why? Upon reaching the target pressure value, the digital pressure regulator sends a second control signal to the electric pilot valve, reducing the valve opening.

[0010] In conjunction with the first aspect mentioned above, in one possible implementation, the electric pilot valve adjusts in a fixed step size each time, and the control setting is performed by a digital voltage regulator.

[0011] Secondly, a remote dynamic control system based on an intelligent pressure reducing valve is provided. The intelligent pressure reducing valve mentioned above is used, and a data transmission module is also included. The data transmission module is integrated inside the digital voltage regulator and is used to realize the communication connection between the digital voltage regulator and the remote control module. The remote control module is used to receive signals sent by the digital voltage regulator and to process the signals sent by the digital voltage regulator. The intelligent water pump is installed on the first water inlet pipe. The intelligent water pump includes a pump body and a pump control unit. The intelligent water pump is electrically connected to the remote control module and is used to receive the start signal of the remote control module and start the pump body to supply water to the first water inlet pipe.

[0012] In conjunction with the second aspect above, in one possible implementation, the digital voltage regulator sets the back-end flow threshold Q0; In intelligent pressure reducing valves, when the monitored flow rate... Q≥ When the backend flow threshold Q0 is reached, the digital voltage regulator controller will send the acquired real-time pressure and flow data to the remote control module through the data transmission module.

[0013] In conjunction with the second aspect mentioned above, in one possible implementation, the remote control module receives the outlet pressure in real time. For, It is compared with the target pressure value, and the outlet pressure is recorded. Pout Duration T below the target pressure value; The remote control module sets a continuous limit duration T0. When the duration T exceeds the continuous limit duration T0, the remote control module sends a start signal to the water pump control unit to start the water pump body to supply water to the first water inlet pipe. The remote control module receives the outlet pressure in real time. For, Until export pressure Why? Upon reaching the target pressure value, the remote control module sends a stop signal to the water pump control unit, shutting off the water pump's supply to the first inlet pipe.

[0014] Thirdly, a remote dynamic control method for a remote dynamic control system based on an intelligent pressure reducing valve is provided, the method comprising the following steps: The remote control module receives the outlet pressure in real time. Why? It is compared with the target pressure value, and the outlet pressure is recorded. Pout Duration T below target pressure; outlet pressure Pout The sensor modules are installed on the first inlet pipe and the second outlet pipe; The remote control module sets a continuous limit duration T0. When the duration T exceeds the continuous limit duration T0, the remote control module sends a start signal to the water pump control unit to start the water pump body to supply water to the first water inlet pipe.

[0015] In conjunction with the third aspect mentioned above, in one possible implementation, the remote control module continuously receives the output pressure. For, Until export pressure Why? Upon reaching the target pressure value, the remote control module sends a stop signal to the water pump control unit, shutting off the water pump's supply to the first inlet pipe.

[0016] This application provides an intelligent pressure reducing valve and a remote dynamic control system. The intelligent pressure reducing valve adopts closed-loop control logic in its overall operation. Through a collaborative working mode of "real-time data acquisition by sensor modules + analysis and judgment by digital pressure regulators + dynamic adjustment by electric pilot valves," it achieves precise and stable control of the outlet pressure, realizing the core technical effects of adaptive operation, precise and stable pressure, and intelligent linkage operation and maintenance. By acquiring data in real time from upstream and downstream pressure / flow sensors, when the downstream pressure deviates from the target pressure value, the opening of the electric pilot valve is dynamically adjusted, avoiding the pressure drift and oscillation of traditional valves and significantly improving the pressure stability of the water supply network.

[0017] The remote dynamic control system automatically triggers the linkage of equipment such as water pumps based on flow and pressure data, forming a dual protection mechanism of "pressure regulation + auxiliary pressurization." Compared with the traditional single pressure reducing valve regulation, it can better cope with extreme working conditions. Faced with extreme working conditions such as a surge in user water consumption, traditional valves can only regulate through their own pilot valves, resulting in slow response speed and easy to cause a sudden drop in downstream pressure or even supply interruption. This invention can determine the situation by linking flow and pressure data. When the flow exceeds the threshold and the downstream pressure remains low, the system automatically starts the downstream water pump to assist in pressurization, quickly restoring the pipeline pressure without manual intervention and ensuring the reliability of water supply under high flow conditions. Through the collaborative work of the digital pressure regulator and the remote control module, remote dynamic and precise control is achieved. At the same time, parameters such as target pressure value, flow threshold Q0, and continuous limit duration T0 can be flexibly adjusted according to the water demand of different scenarios, adapting to the needs of various scenarios such as residential buildings, industrial production, and precision instrument water supply. Attached Figure Description

[0018] Figure 1 An assembly drawing of an intelligent pressure reducing valve provided for this invention; Figure 2 A flowchart illustrating the operation of an intelligent pressure reducing valve provided by the present invention; Figure 3 A schematic diagram of a remote dynamic control system based on an intelligent pressure reducing valve provided by the present invention; Figure 4 The flowchart illustrates a remote dynamic control method based on an intelligent pressure reducing valve, as provided by this invention.

[0019] Explanation of reference numerals in the attached figures: 1. Main valve body; 2. Shut-off valve; 3. Sensor module; 4. Digital voltage regulator; 5. Power supply; 6. Electric pilot valve. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figure 1-2 As shown in the figure, an intelligent pressure reducing valve provided in an embodiment of the present invention includes: The main valve body 1 is installed on the water supply pipeline, which divides the water supply pipeline into a first inlet pipeline and a second outlet pipeline. A shut-off valve 2 is installed on the first inlet pipeline to control the opening and closing of the first inlet pipeline. The second outlet pipeline is located downstream of the main valve body 1 and is connected to the first inlet pipeline through the main valve body 1. A shut-off valve 2 is installed on the second outlet pipeline. In one implementation, the main valve body 1, as the core pressure-bearing component of the intelligent pressure reducing valve, is made of ductile iron or stainless steel (selected according to the application scenario; stainless steel 304 is preferred for civil applications, while ductile iron QT450-10 is selected for industrial high-temperature and high-pressure applications). The entire body is made using an integrated casting process to avoid potential leakage at the valve body joints. Its nominal pressure range is 0.1MPa~1.6MPa, and its nominal diameter is DN50~DN300, adapting to the installation requirements of water pipelines with different pipe diameters.

[0022] The main valve body 1 is fixedly installed on the water supply pipeline and connected to the pipeline via a flange (flange standard conforms to GB / T 9119-2010). During installation, ensure that the axis of the main valve body 1 is coaxial with the axis of the pipeline to avoid fluid flow disturbance and excessive pressure loss due to installation deviation. The main valve body 1 clearly divides the water supply pipeline into a first inlet pipeline (input end) and a second outlet pipeline (output end), and the two are connected by the valve cavity inside the main valve body 1 to ensure smooth fluid flow and pressure regulation.

[0023] A shut-off valve 2 is installed on the first inlet pipe, specifically a manual gate valve or an electric gate valve (manual gate valves are preferred for civilian use, while electric gate valves are preferred for industrial automation, with a voltage rating of AC220V), to control the opening and closing of the first inlet pipe, facilitating the shut-off of water supply during equipment maintenance, repair, or emergency shutdown; the second outlet pipe is located downstream of the main valve body 1, and a shut-off valve 2 is also installed on it, with the same type as the first inlet pipe, to shut off the outlet during equipment maintenance to prevent leakage of residual fluid in the pipe, and to quickly close the outlet in an emergency to ensure the safety of the downstream pipe.

[0024] The digital pressure regulator 4 is used for local operation to set the target pressure value and to display the operating status in real time; the digital pressure regulator 4 has a built-in power supply 5 to power itself, the sensor module 3 and the electric pilot valve 6. The digital pressure regulator 4 serves as the core control unit of the entire intelligent pressure reducing valve. It employs an embedded microprocessor (STM32F103, 72MHz) characterized by high processing speed, low power consumption, and strong anti-interference capabilities, making it suitable for complex electromagnetic environments in industrial and civilian applications. Its core function is to enable local setting of target pressure values ​​and real-time display of equipment operating status. The user interface uses an LCD screen (1280p resolution). (64) Equipped with 4 physical buttons (power button, setting button, plus button, minus button), it is easy to operate and can complete parameter settings without professional training.

[0025] The target pressure setting range is 0.05MPa~1.2MPa, supporting continuous adjustment with an adjustment accuracy of ±0.01MPa, meeting the pressure requirements of different scenarios (e.g., the target pressure for residential water supply is set to 0.2MPa~0.4MPa, and the target pressure for industrial production water supply is set to 0.6MPa~1.0MPa). Real-time display of operating status includes: inlet pressure Pin, outlet pressure Pout, flow rate Q, electric pilot valve 6 opening degree, power supply 5 status, and fault alarms (such as sensor faults and electric pilot valve 6 faults). The display brightness is adjustable to adapt to different ambient lighting conditions.

[0026] The digital voltage regulator 4 has a built-in power supply 5, powered by a lithium battery (model 18650, capacity 2000mAh, nominal voltage 3.7V). It also supports external AC220V power supply 5, and the two power supply methods can automatically switch. When the external power supply 5 is interrupted, the built-in lithium battery can ensure continuous operation of the device for no less than 8 hours, preventing pressure regulation failure due to power outages. The built-in power supply 5 provides adaptive voltages to itself, the sensor module 3, and the electric pilot valve 6 via a DC-DC conversion module: 3.3V for the digital voltage regulator 4, 5V for the sensor module 3, and 12V for the electric pilot valve 6, ensuring stable operation of all components.

[0027] Sensor module 3 is used to collect real-time pressure and flow data at the front inlet and rear outlet of the main valve body 1. Specifically, sensor module 3 is a pressure sensor, flow sensor or pressure / flow sensor integrating pressure and flow, which is respectively set on the first water inlet pipe and the second water outlet pipe, and the digital pressure regulator 4 is connected to sensor module 3. Sensor module 3 feeds back the acquired pressure and flow data to digital pressure regulator 4 in real time. Specifically, the core function of sensor module 3 is to collect real-time pressure and flow data at the front inlet and rear outlet of the main valve body 1, providing accurate data support for the pressure regulation control of digital pressure regulator 4. Its selection needs to meet the requirements of high measurement accuracy, fast response speed, and strong environmental adaptability. The specific selection and installation details are as follows: Specifically, sensor module 3 can be a pressure sensor, a flow sensor, or an integrated pressure / flow sensor, selected according to actual usage requirements: when only pressure needs to be monitored, a diffused silicon pressure sensor (measurement range 0~2.0MPa, accuracy ±0.5%FS, response time ≤10ms) is selected; when only flow needs to be monitored, a turbine flow sensor (measurement range 0.1~10m³ / h, accuracy ±1.0%FS) is selected; when both pressure and flow need to be monitored simultaneously, an integrated pressure / flow sensor (pressure measurement range 0~2.0MPa, flow measurement range 0.1~10m³ / h, accuracies ±0.5%FS and ±1.0%FS, respectively) is selected.

[0028] Pressure sensors (or pressure acquisition terminals of integrated sensors) are respectively installed in the first inlet pipe (front inlet of main valve body 1) and the second outlet pipe (rear outlet of main valve body 1), using threaded connection (thread specification M20). 1.5) The installation position is not less than 0.3m away from the flange of the main valve body 1 to avoid the internal fluid disturbance of the main valve body 1 from affecting the pressure measurement accuracy; the flow sensor (or the flow acquisition end of the integrated sensor) is installed in the second outlet water pipeline, located downstream of the pressure sensor, and not less than 0.5m away from the pressure sensor to ensure the accuracy of flow measurement.

[0029] The digital pressure regulator 4 and the sensor module 3 are connected via an RS485 bus (communication protocol is Modbus-RTU, baud rate 9600bps, 8 data bits, 1 stop bit, no parity bit). The sensor module 3 adopts an active acquisition mode, and the acquisition frequency can be set by the digital pressure regulator 4 (default acquisition frequency is 1 time / second, adjustable range 0.5 times / second to 5 times / second). The acquired pressure and flow data are fed back to the digital pressure regulator 4 in real time, ensuring that the digital pressure regulator 4 can obtain pipeline operating information in a timely manner and make rapid adjustment responses.

[0030] The electric pilot valve 6 is used to receive the control signal from the digital pressure regulator 4 and adjust the opening degree according to the control signal so that the pressure at the rear outlet of the main valve body 1 is stabilized at the set target pressure value.

[0031] It should be noted that the electric pilot valve 6, as an actuator, works in conjunction with the main valve disc and diaphragm inside the main valve body 1. Its core function is to receive the control signal from the digital pressure regulator 4 and precisely adjust its own opening according to the control signal, thereby controlling the pressure distribution inside the main valve body 1 and stabilizing the pressure at the rear outlet of the main valve body 1 within the set target pressure range.

[0032] The electric pilot valve 6 is an electromagnetic pilot valve (rated voltage 12V, rated current 0.5A, opening adjustment range 0~100%, adjustment accuracy ±1%). Its opening degree is linearly related to the amplitude of the control signal. The digital voltage regulator 4 controls the opening degree of the electric pilot valve 6 by outputting a PWM pulse signal. The larger the signal amplitude, the larger the pilot valve opening, and vice versa. The response time of the electric pilot valve 6 is ≤50ms, which can quickly respond to the controller's control commands and avoid pressure fluctuations caused by pressure regulation lag.

[0033] In some implementations, the electric pilot valve 6 adjusts in a fixed step size each time, controlled and set by the digital pressure regulator 4. The adjustment step size can be set according to actual operating conditions (default step size is 1%, adjustable range 0.5%~5%). The principle for setting the step size is: when the operating conditions fluctuate slightly, a small step size is used to ensure pressure regulation accuracy; when the operating conditions fluctuate significantly, a large step size is used to accelerate pressure recovery and avoid excessive pressure deviation.

[0034] In this embodiment, by installing sensor modules 3 at the front and rear ends of the main valve body 1, real-time pressure and flow data of the front inlet and rear outlet of the main valve body 1 are collected. When the pressure at the rear end of the main valve body 1 is lower than the target pressure value set by the local operation, the digital pressure regulator 4 dynamically adjusts the opening of the electric pilot valve 6 to stabilize the pressure at the rear end of the main valve body 1 at the target pressure value, thus solving the defect of the traditional pressure reducing valve pilot valve being fixed and unable to be dynamically adjusted according to the working conditions.

[0035] The digital pressure regulator 4 is used to perform pressure regulation control based on the real-time pressure and flow data collected by the sensor module 3 and the target pressure value set by the user's local operation. Includes: sensor module 3 collects real-time pressure and flow data at the front inlet and rear outlet of the main valve body 1 and feeds it back to the digital pressure regulator 4; The digital pressure regulator 4 marks the real-time pressure and flow data as: inlet pressure Export pressure Pout and traffic Q ; Digital voltage regulator 4 will output pressure Pout Compare with the target pressure value: If export pressure Pout <Target pressure value; The digital pressure regulator 4 sends a first control signal to the electric pilot valve 6 to increase the opening of the pilot valve, thereby reducing the pressure in the upper chamber of the main valve diaphragm, causing the main valve disc to move downward, increasing the flow area, and increasing the downstream pressure.

[0036] If export pressure Why?At the target pressure value, the digital pressure regulator 4 sends a second control signal to the electric pilot valve 6 to reduce the opening of the pilot valve, thereby increasing the pressure in the upper chamber of the main valve diaphragm, causing the main valve disc to move upward, reducing the flow area, and lowering the downstream pressure.

[0037] By continuously and dynamically adjusting the electric pilot valve 6, the pressure at the rear end of the main valve body 1 is kept stable within the target pressure range, which solves the defect of the traditional pressure reducing valve having a fixed pilot valve that cannot be dynamically adjusted according to the working conditions.

[0038] In some implementations, the electric pilot valve 6 adjusts in a fixed step size each time, and is controlled and set by the digital voltage regulator 4.

[0039] In this embodiment, the overall operation of the intelligent pressure reducing valve adopts closed-loop control logic. Through the collaborative working mode of "real-time data acquisition by sensor module 3 + analysis and judgment by digital pressure regulator 4 + dynamic adjustment by electric pilot valve 6", precise and stable control of the outlet pressure is achieved, realizing the core technical effects of adaptive operation, precise and stable pressure, and intelligent linkage operation and maintenance. By acquiring data in real time from the front and rear pressure / flow sensors, when the rear pressure deviates from the target pressure value, the opening of the electric pilot valve 6 is dynamically adjusted, avoiding the pressure drift and oscillation of traditional valves and significantly improving the pressure stability of the water supply network.

[0040] like Figure 3-4 As shown, this embodiment of the invention also provides a remote dynamic control system based on an intelligent pressure reducing valve. It adds remote control modules and an intelligent water pump linkage mechanism to the above-mentioned intelligent pressure reducing valve. It is applicable to scenarios such as large-scale water supply networks, cross-regional water supply systems, and unattended water supply stations. It can realize remote monitoring, parameter adjustment and equipment linkage control of the intelligent pressure reducing valve, and greatly improve the intelligence level and operation and maintenance efficiency of the water supply network.

[0041] The system also includes a data transmission module, which is integrated inside the digital voltage regulator 4 and is used to realize the communication connection between the digital voltage regulator 4 and the remote control module. It adopts an integrated design and is directly embedded inside the digital voltage regulator 4, seamlessly interfacing with the controller's embedded microprocessor (STM32F103).

[0042] The remote control module is used to receive signals sent by the digital voltage regulator 4 and to process the signals sent by the digital voltage regulator 4. The intelligent water pump is installed on the first water inlet pipe. The intelligent water pump includes a pump body and a pump control unit. The intelligent water pump is electrically connected to the remote control module and is used to receive the start signal of the remote control module and start the pump body to supply water to the first water inlet pipe.

[0043] The intelligent water pump, serving as an auxiliary pressurizing device in the system, plays a crucial role in supplementing the first inlet pipeline with water when the water supply network pressure is insufficient. This increases the inlet pressure and ensures that the outlet pressure at the rear end of the main valve body 1 remains stable within the target range. Its structure, installation, and control logic are all integrated with the overall system. The water pump body is a stainless steel centrifugal pump (material 304, motor power 0.75~5.5kW, voltage AC380V), characterized by stable operation, low noise, and low energy consumption. The water pump control unit uses an embedded controller (model: STM32F407) that integrates communication and control interfaces.

[0044] In some specific embodiments, the digital voltage regulator 4 sets the back-end flow threshold Q0; In intelligent pressure reducing valves, when the monitored flow rate... Q≥ When the backend flow threshold Q0 is reached, the digital voltage regulator 4 will send the acquired real-time pressure and flow data to the remote control module through the data transmission module. The remote control module receives the outlet pressure in real time. For, It is compared with the target pressure value, and the outlet pressure is recorded. Pout Duration T below the target pressure value; The remote control module sets a continuous limit duration T0. When the duration T exceeds the continuous limit duration T0, the remote control module sends a start signal to the water pump control unit to start the water pump body to supply water to the first water inlet pipe. The remote control module receives the outlet pressure in real time. Why? Until export pressure Why? Upon reaching the target pressure value, the remote control module sends a stop signal to the water pump control unit, shutting off the water pump's supply to the first inlet pipe.

[0045] In some specific implementations, the digital voltage regulator 4 will pre-set the back-end flow threshold Q0. The setting of Q0 needs to be combined with the actual operating conditions such as the design flow of the water supply network and the user's water demand. It is usually set to 70%~80% of the design flow (for example, if the design flow of the water supply network is 5m³ / h, Q0 can be set to 3.5~4.0m³ / h). Q0 can be set locally by the digital voltage regulator 4 or remotely modified by the remote control module, with a modification accuracy of 0.1m³ / h.

[0046] During the operation of the intelligent pressure reducing valve, the sensor module 3 collects the flow rate Q at the rear outlet of the main valve body 1 in real time and feeds it back to the digital pressure regulator 4. The digital pressure regulator 4 compares the real-time flow rate Q with the set rear flow rate threshold Q0. When the monitored flow rate Q < the back-end flow rate threshold Q0, it indicates that the user's water consumption is small and the water supply network pressure can meet the demand. The digital pressure regulator 4 can maintain the outlet pressure stability by dynamically adjusting the electric pilot valve 6. At this time, no data is sent to the remote control module, and the remote control module is in standby monitoring state. When the monitored flow rate Q is greater than or equal to the back-end flow rate threshold Q0, it indicates that the user's water consumption is large (such as during peak water consumption periods or extreme water consumption conditions). The outlet pressure may not be stable if the electric pilot valve 6 is used for adjustment. At this time, the digital pressure regulator 4 will continuously send the pressure (Pin, Pout) and flow rate (Q) data acquired in real time to the remote control module through the data transmission module to trigger the system linkage judgment process.

[0047] The remote control module receives the outlet pressure Pout sent by the digital pressure regulator 4 in real time and compares it with the target pressure value (such as 0.3MPa) set by the digital pressure regulator 4 in real time. At the same time, it starts the timing function to record the duration T of the outlet pressure Pout being lower than the target pressure value. The timing accuracy is 1 second to ensure the accuracy of the duration statistics.

[0048] More specifically, the remote control module itself has a preset duration limit T0. The setting of T0 needs to take into account factors such as the pressure recovery capability of the water supply network and the pump start-up response time. It is usually set to 30 to 60 seconds (for example, T0 is set to 30 seconds for small water supply networks and 60 seconds for large water supply networks). T0 can be set locally through the remote control module and can be dynamically adjusted according to the working conditions.

[0049] The duration determination and water pump control logic are as follows: When the duration T does not exceed the continuous limit duration T0 (e.g., T=20 seconds < T0=30 seconds), it indicates that the outlet pressure is only temporarily low. The remote control module does not send control signals, but only continuously monitors the changes in Pout. At the same time, the digital pressure regulator 4 continues to adjust through the electric pilot valve 6 to try to restore the outlet pressure. When the duration T exceeds the continuous limit T0 (e.g., T=35 seconds > T0=30 seconds), it indicates that the outlet pressure is consistently low and cannot be restored by adjustment of the electric pilot valve 6 alone. At this time, the remote control module immediately sends a start signal (DC24V control signal) to the water pump control unit. After receiving the signal, the water pump control unit starts the water pump body to supplement water supply to the first inlet pipeline, increase the inlet pressure Pin of the main valve body 1, and thus help increase the outlet pressure Pout of the downstream end.

[0050] After the water pump starts, the remote control module continuously receives the outlet pressure Pout sent by the digital pressure regulator 4 in real time and performs real-time monitoring until the outlet pressure Pout is greater than or equal to the target pressure value. At this time, the remote control module immediately sends a stop signal to the water pump control unit. After receiving the signal, the water pump control unit smoothly stops the operation of the water pump body and stops the water supply to the first inlet pipe. The system returns to normal operation (pressure is maintained by the electric pilot valve 6 alone).

[0051] The remote dynamic control system provided in this application automatically triggers the linkage of equipment such as water pumps based on flow and pressure data, forming a dual protection mechanism of "pressure regulation + auxiliary pressurization". Compared with the traditional single pressure reducing valve regulation, it can better cope with extreme working conditions. Faced with extreme working conditions such as a surge in user water consumption, traditional valves can only regulate through their own pilot valves, resulting in slow response speed and easy to cause a sudden drop in downstream pressure or even supply interruption. This invention can determine the situation through the linkage of flow and pressure data. When the flow exceeds the threshold and the downstream pressure remains low, the system automatically starts the downstream water pump to assist in pressurization, which can quickly restore the pipeline pressure without manual intervention and ensure the reliability of water supply under high flow conditions. Through the collaborative work of the digital pressure regulator 4 and the remote control module, remote dynamic and precise control is achieved. At the same time, parameters such as target pressure value, flow threshold Q0, and continuous limit duration T0 can be flexibly adjusted according to the water demand of different scenarios, adapting to the needs of various scenarios such as residential buildings, industrial production, and precision instrument water supply.

[0052] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An intelligent pressure reducing valve, comprising a main valve body (1) disposed on a water supply pipeline, dividing the water supply pipeline into a first inlet pipeline and a second outlet pipeline, characterized in that, It also includes a digital pressure regulator (4) for setting the target pressure value for local operation, a sensor module (3) for collecting real-time pressure and flow data of the front inlet and rear outlet of the main valve body (1), and an electric pilot valve (6) for receiving the control signal of the digital pressure regulator (4) and adjusting the opening of the main valve body (1) according to the control signal. The sensor modules (3) installed at the front and rear ends of the main valve body (1) collect real-time data on pressure and flow at the front inlet and rear outlet of the main valve body (1). When the pressure at the rear end of the main valve body (1) is lower than the target pressure value set by the local operation, the digital pressure regulator (4) dynamically adjusts the opening of the electric pilot valve (6) to stabilize the pressure at the rear end of the main valve body (1) at the target pressure value.

2. The intelligent pressure reducing valve as described in claim 1, characterized in that, A shut-off valve (2) is installed on the first water inlet pipe to control the opening and closing of the first water inlet pipe; the second water outlet pipe is located downstream of the main valve body (1) and the first water inlet pipe and the second water outlet pipe are connected through the main valve body (1); a shut-off valve (2) is installed on the second water outlet pipe.

3. The intelligent pressure reducing valve as described in claim 1, characterized in that, The digital voltage regulator (4) has a built-in power supply (5) for powering the sensor module (3) and the electric pilot valve (6).

4. The intelligent pressure reducing valve as described in claim 1, characterized in that, The digital voltage regulator (4) is used to perform voltage regulation control based on the real-time pressure and flow data collected by the sensor module (3) and the target pressure value set by the user's local operation. Includes: sensor module (3) to collect real-time pressure and flow data of the front inlet and rear outlet of the main valve body (1) and feed them back to the digital pressure regulator (4); The digital voltage regulator (4) marks the real-time pressure and flow data as: inlet pressure Export pressure Pout and traffic Q ; The digital voltage regulator (4) controls the outlet pressure Pout Compare with the target pressure value: If export pressure Pout <Target pressure value; The digital pressure regulator (4) sends a first control signal to the electric pilot valve (6) to increase the opening of the pilot valve; If export pressure Pout≥ The target pressure value is reached, and the digital pressure regulator (4) sends a second control signal to the electric pilot valve (6) to reduce the opening of the pilot valve.

5. The intelligent pressure reducing valve as described in claim 4, characterized in that, The electric pilot valve (6) adjusts in a fixed step size each time, and is controlled and set by the digital voltage regulator (4).

6. A remote dynamic control system based on an intelligent pressure reducing valve, employing the intelligent pressure reducing valve as described in claim 5, characterized in that, It also includes a data transmission module, which is integrated inside the digital voltage regulator (4) and is used to realize the communication connection between the digital voltage regulator (4) and the remote control module; The remote control module is used to receive signals sent by the digital voltage regulator (4) and to process the signals sent by the digital voltage regulator (4); The intelligent water pump is installed on the first water inlet pipe. The intelligent water pump includes a pump body and a pump control unit. The intelligent water pump is electrically connected to the remote control module and is used to receive the start signal of the remote control module and start the pump body to supply water to the first water inlet pipe.

7. A remote dynamic control system based on an intelligent pressure reducing valve as described in claim 6, characterized in that, The digital voltage regulator (4) sets the back-end flow threshold Q0; In intelligent pressure reducing valves, when the monitored flow rate... Q≥ When the back-end flow threshold Q0 is reached, the digital voltage regulator (4) sends the acquired real-time pressure and flow data to the remote control module through the data transmission module.

8. A remote dynamic control system based on an intelligent pressure reducing valve as described in claim 7, characterized in that, The remote control module receives the outlet pressure in real time. Pout, It is compared with the target pressure value, and the outlet pressure is recorded. Pout Duration T below the target pressure value; The remote control module sets a continuous limit duration T0. When the duration T exceeds the continuous limit duration T0, the remote control module sends a start signal to the water pump control unit to start the water pump body to supply water to the first water inlet pipe. The remote control module receives the outlet pressure in real time. Pout, Until export pressure Pout≥ Upon reaching the target pressure value, the remote control module sends a stop signal to the water pump control unit, shutting off the water pump's supply to the first inlet pipe.

9. A remote dynamic control method for a remote dynamic control system based on an intelligent pressure reducing valve as described in any one of claims 6-8, characterized in that, The method includes the following steps: The remote control module receives the outlet pressure in real time. Pout, It is compared with the target pressure value, and the outlet pressure is recorded. Pout Duration T below target pressure; outlet pressure Pout The sensor module (3) is installed on the first water inlet pipe and the second water outlet pipe. The remote control module sets a continuous limit duration T0. When the duration T exceeds the continuous limit duration T0, the remote control module sends a start signal to the water pump control unit to start the water pump body to supply water to the first water inlet pipe.

10. The remote dynamic control method based on an intelligent pressure reducing valve as described in claim 9, characterized in that, The remote control module continuously receives output pressure. Pout, Until export pressure Pout≥ Upon reaching the target pressure value, the remote control module sends a stop signal to the water pump control unit, shutting off the water pump's supply to the first inlet pipe.

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