CN-121993637-A - Intelligent pressure reducing valve and remote dynamic control system

CN121993637ACN 121993637 ACN121993637 ACN 121993637ACN-121993637-A

Abstract

The invention discloses an intelligent pressure reducing valve and a remote dynamic control system, which relate to the field of pressure reducing valve control and comprise a main valve body arranged on a water passage, a digital pressure stabilizing controller for locally operating and setting a target pressure value, a sensor module for collecting pressure and flow real-time data, and an electric pilot valve for receiving a control signal of the digital pressure stabilizing controller and adjusting the opening of the main valve body, wherein the whole working process adopts closed-loop control logic, and a cooperative working mode of 'real-time collection of the sensor module + analysis and judgment of the digital pressure stabilizing controller + dynamic adjustment of the electric pilot valve' is adopted, so that the accurate and stable control of outlet pressure is realized, and the core technical effects of working condition self-adaption, accurate and stable pressure and intelligent linkage operation and maintenance are realized. The front end pressure and the rear end pressure/flow sensors are used for collecting data in real time, and when the rear end pressure deviates from a target pressure value, the opening of the electric pilot valve is dynamically adjusted, so that pressure drift and vibration of a traditional valve are avoided, and the pressure stability of a water supply network is remarkably improved.

Inventors

FANG CHAO
WU YILIANG
Xie Jinwu
FANG LEI

Assignees

安徽方兴实业股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260326

Claims (10)

1. The intelligent pressure reducing valve comprises a main valve body (1) arranged on a water passage pipeline, and divides the water passage pipeline into a first water inlet pipeline and a second water outlet pipeline, and is characterized by further comprising a digital pressure stabilizing controller (4) used for setting target pressure values in a local operation mode, a sensor module (3) used for collecting pressure and flow real-time data of a front end inlet and a rear end outlet of the main valve body (1), and an electric pilot valve (6) used for receiving control signals of the digital pressure stabilizing controller (4) and adjusting the opening of the main valve body (1) according to the control signals; the sensor module (3) installed at the front end and the rear end of the main valve body (1) collects real-time pressure and flow data of the front end inlet and the rear end outlet of the main valve body (1), and when the pressure at the rear end of the main valve body (1) is lower than a target pressure value set by local operation, the digital voltage-stabilizing controller (4) enables the pressure at the rear end of the main valve body (1) to be stabilized at the target pressure value by controlling the opening degree dynamic adjustment of the electric pilot valve (6).
2. The intelligent pressure reducing valve according to claim 1, wherein the first water inlet pipeline is provided with a shut-off valve (2) for controlling the on-off of the first water inlet pipeline, the second water outlet pipeline is positioned at the downstream of the main valve body (1) and communicated with the second water inlet pipeline through the main valve body (1), and the second water outlet pipeline is provided with the shut-off valve (2).
3. An intelligent pressure reducing valve according to claim 1, characterized in that the digital pressure stabilizing controller (4) is provided with a built-in power supply (5) for supplying power to the sensor module (3) and the electrically operated pilot valve (6).
4. The intelligent pressure reducing valve according to claim 1, wherein the digital pressure stabilizing controller (4) is used for stabilizing pressure according to pressure and flow real-time data collected by the sensor module (3) and a target pressure value set by local operation of a user; the sensor module (3) collects real-time pressure and flow data of the front end inlet and the rear end outlet of the main valve body (1) and feeds the real-time pressure and flow data back to the digital voltage stabilizing controller (4); the digital voltage-stabilizing controller (4) marks the real-time data of pressure and flow as inlet pressure Outlet pressure Pout and flow Q; the digital regulator controller (4) compares the outlet pressure Pout with a target pressure value: If the outlet pressure Pout is smaller than the target pressure value, the digital voltage stabilizing controller (4) sends a first control signal to the electric pilot valve (6) to increase the opening of the pilot valve; if the outlet pressure Pout is more than or equal to the target pressure value, the digital voltage stabilizing controller (4) sends a second control signal to the electric pilot valve (6) to reduce the opening of the pilot valve.
5. An intelligent pressure reducing valve as set forth in claim 4, characterized in that the electrically operated pilot valve (6) is fixed in each adjustment step and is controlled by the digital pressure stabilizing controller (4).
6. The remote dynamic control system based on the intelligent pressure reducing valve is characterized by further comprising a data transmission module, wherein the data transmission module is integrated inside the digital pressure stabilizing controller (4) and is used for realizing communication connection between the digital pressure stabilizing controller (4) and the remote control module; The remote control module is used for receiving the signals sent by the digital voltage-stabilizing controller (4) and performing signal processing on the signals sent by the digital voltage-stabilizing controller (4); the intelligent water pump, the intelligent water pump sets up at first water inlet pipeline, and intelligent water pump includes water pump body and water pump control unit, intelligent water pump with remote control module electric connection for receive remote control module's start signal, and open water pump body and supply water to first water inlet pipeline.
7. A remote dynamic control system based on an intelligent relief valve as claimed in claim 6, characterized in that the digital pressure regulator controller (4) sets the back-end flow threshold Q0; in the intelligent pressure reducing valve, when the monitored flow Q is more than or equal to the rear end flow threshold Q0, the digital pressure stabilizing controller (4) sends the acquired pressure and flow real-time data to the remote control module through the data transmission module.
8. The remote dynamic control system based on the intelligent pressure reducing valve according to claim 7, wherein the remote control module receives the outlet pressure Pout in real time, compares the outlet pressure Pout with a target pressure value, and records a time period T when the outlet pressure Pout is lower than the target pressure value; the remote control module sets a duration limit time length T0, and when the duration T exceeds the duration limit time length T0, the remote control module sends a starting signal to the water pump control unit to start the water pump body to supply water to the first water inlet pipeline; The remote control module receives the outlet pressure Pout in real time until the outlet pressure Pout is more than or equal to a target pressure value, sends a stop signal to the water pump control unit, and closes the water pump body to supply water to the first water inlet pipeline.
9. A method for remote dynamic control of a remote dynamic control system based on an intelligent relief valve according to any of claims 6-8, characterized in that the method comprises the steps of: The remote control module receives the outlet pressure Pout in real time, compares the outlet pressure Pout with a target pressure value, and records the duration T that the outlet pressure Pout is lower than the target pressure value; the remote control module sets a duration limit time length T0, and when the duration T exceeds the duration limit time length T0, the remote control module sends a starting signal to the water pump control unit to start the water pump body to supply water to the first water inlet pipeline.
10. The remote dynamic control method based on the intelligent pressure reducing valve according to claim 9, wherein the remote control module continuously receives the outlet pressure Pout until the outlet pressure Pout is equal to or greater than a target pressure value, and the remote control module sends a stop signal to the water pump control unit to close the water pump body to supply water to the first water inlet pipeline.

Description

Intelligent pressure reducing valve and remote dynamic control system Technical Field The invention relates to the field of control of pressure reducing valves, in particular to an intelligent pressure reducing valve and a remote dynamic control system. Background The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by adjusting and automatically keeps the outlet pressure stable by depending on the energy of the medium. The pressure reducing valve is widely used in high-rise buildings, areas with too high water pressure of urban water supply pipelines, mines and other occasions to ensure that each water point in the water supply system obtains proper service water pressure and flow. The pilot valve of the traditional pressure reducing valve is fixed, once the pilot valve is regulated, dynamic regulation is not carried out, when the flow of the rear end is too large, the pressure of the outlet end of the pressure reducing valve is unstable, and when the pressure difference of the front end and the rear end of the pressure reducing valve is insufficient after the front end stops pumping, the water pump cannot be started in time, so that the pressure reducing valve is closed unexpectedly. Therefore, the invention provides an intelligent pressure reducing valve and a remote dynamic control system. Disclosure of Invention The invention provides an intelligent pressure reducing valve and a remote dynamic control system, which can solve the problem that the pressure of the outlet end of a pressure reducing valve is unstable when the flow of the rear end is overlarge because a fixed pilot valve cannot adjust the opening of the pilot valve according to a real-time pressure value in the prior art. In order to achieve the above purpose, the application adopts the following technical scheme: the intelligent pressure reducing valve is characterized by further comprising a digital pressure stabilizing controller used for setting target pressure values in a local operation mode, a sensor module used for collecting pressure and flow real-time data of a front end inlet and a rear end outlet of the main valve body, and an electric pilot valve used for receiving control signals of the digital pressure stabilizing controller and adjusting the opening of the main valve body according to the control signals; the sensor modules arranged at the front end and the rear end of the main valve body collect real-time pressure and flow data of an inlet at the front end and an outlet at the rear end of the main valve body in real time, and when the pressure at the rear end of the main valve body is lower than a target pressure value set by local operation, the digital voltage stabilizing controller dynamically adjusts the opening of the electric pilot valve by controlling the opening of the electric pilot valve, so that the pressure at the rear end of the main valve body is stabilized at the target pressure value. With reference to the first aspect, in one possible implementation manner, the first water inlet pipeline is provided with a shut-off valve for controlling on-off of the first water inlet pipeline, the second water outlet pipeline is located at the downstream of the main valve body and is communicated with the first water inlet pipeline through the main valve body, and the second water outlet pipeline is provided with a shut-off valve. With reference to the first aspect, in one possible implementation manner, the digital voltage regulator controller is provided with a built-in power supply for supplying power to the sensor module and the electrically operated pilot valve. With reference to the first aspect, in one possible implementation manner, the digital voltage stabilizing controller is configured to perform voltage stabilizing control according to pressure and flow real-time data collected by the sensor module and a target pressure value set by a local operation of a user; The sensor module collects pressure and flow real-time data of a front end inlet and a rear end outlet of the main valve body and feeds the data back to the digital voltage stabilizing controller; The digital voltage-stabilizing controller marks the pressure and flow real-time data as inlet pressure Outlet pressure Pout and flow Q; the digital regulator controller compares the outlet pressure Pout with a target pressure value: if the outlet pressure Pout is smaller than the target pressure value, the digital voltage stabilizing controller sends a first control signal to the electric pilot valve, and the opening of the pilot valve is increased; If the outlet pressure Pout is more than or equal to the target pressure value, the digital voltage stabilizing controller sends a second control signal to the electric pilot valve, and the opening of the pilot valve is reduced. With reference to the first aspect, in a possible implementation manner, the step length of the electrically operated pilot valve is