CN-121979028-A - Control device compatible with servo motor regulating valve and stepping motor regulating valve

CN121979028ACN 121979028 ACN121979028 ACN 121979028ACN-121979028-A

Abstract

The application belongs to the technical field of valve control, and particularly relates to a control device compatible with a servo motor regulating valve and a stepping motor regulating valve. The device comprises a servo driver module and a step driver module which are connected with a processor module to form closed-loop control, wherein the servo driver module and the step driver module are respectively used for driving and communicating a servo motor regulating valve and a step motor regulating valve, the device can work in the servo motor regulating valve working mode or the step motor regulating valve working mode through switching of an embedded software working mode of the processor module, and the processor module is connected with a process control system through a communication interface module and used for controlling the servo driver module to drive or the step driver module according to a valve opening signal sent by the process control system. The device integrates two kinds of controller signal interfaces, an installation mode, an operation interface and an operation method, uniformly operates maintenance procedures and overhaul procedures, and realizes cost reduction and synergy.

Inventors

SHI YANHUA
CHEN NINGBO
JIA QI
TIAN XIAOSHENG
TANG JIAN
ZHAI WEI
FENG XUEZHI
HU YONGLIANG
CHEN JIANPING
LEI YONGQIANG
YANG YAN
CUI YANYAN

Assignees

中核陕西铀浓缩有限公司

Dates

Publication Date: 20260505
Application Date: 20251231

Claims (10)

1. A control device compatible with a servo motor regulating valve and a stepping motor regulating valve is characterized by comprising a processor module, a servo driver module, a stepping driver module and a communication interface module; The servo driver module and the stepping driver module are connected with the processor module to form closed-loop control; The servo driver module and the step driver module are respectively used for driving and communicating the servo motor regulating valve and the step motor regulating valve, and the device can work in a servo motor regulating valve working mode or a step motor regulating valve working mode through the switching of the embedded software working modes of the processor module; The processor module is connected with the process control system through the communication interface module and is used for controlling the servo driver module to drive the switching action of the servo motor regulating valve according to the valve opening signal sent by the process control system, or controlling the step driver module to drive the switching action of the step motor regulating valve and feeding back the regulated opening value to the process control system through the communication interface module.
2. The control device for a compatible servo motor regulator valve, stepper motor regulator valve according to claim 1, wherein said processor module is specifically configured to: After receiving the valve opening signal, invoking a PID software algorithm, converting the valve opening signal into a step distance adjusting signal of the servo motor adjusting valve, and sending the step distance adjusting signal to the servo motor adjusting valve through the servo driver module to execute valve opening or closing actions; Or after receiving the valve opening signal, calling a PID software algorithm, converting the valve opening signal into a step distance adjusting signal of the stepping motor adjusting valve, and sending the step distance adjusting signal to the stepping motor adjusting valve through the stepping motor driver module to execute valve opening or closing actions.
3. The control device compatible with the servo motor regulating valve and the stepping motor regulating valve according to claim 2, wherein the processor module specifically comprises two working modes, namely a following process control system PID regulating mode and an independent PID regulating mode; when the following process control system is operated in the PID regulation mode, receiving a current real-time valve target opening signal output by the process control system through the communication interface module, and taking the current real-time valve target opening signal as the valve opening signal; When the automatic control system works in the independent PID regulation mode, the communication interface module receives a pressure regulation target set value output by the process control system, and according to a pre-valve pressure value and a post-valve pressure value of a target valve, the opening value and the required regulation step distance of the target valve are calculated through an embedded PID algorithm and used as the valve opening signal, wherein the target valve is the servo motor regulating valve or the stepping motor regulating valve.
4. A control apparatus for a compatible servo motor regulator valve, stepper motor regulator valve according to claim 3, wherein when operating in said independent PID regulation mode, PID control is performed according to the following equation: Wherein u is the adjustment step distance, k is the sampling sequence number, kp is the proportional gain, e is the deviation of the controlled quantity from the given value, T is the sampling period, T i is the integral time constant, and T D is the differential time constant.
5. The control device for the compatible servo motor regulating valve and the stepping motor regulating valve according to any one of claims 1 to 4, further comprising a temperature monitoring module and a fault alarming module; The temperature monitoring module is used for monitoring the temperature of the servo motor regulating valve and the temperature of the stepping motor regulating valve, and sending corresponding fault alarm information to the fault alarm module when the temperature of the servo motor regulating valve or the temperature of the stepping motor regulating valve exceeds an alarm setting limit value; the fault alarm module transmits the fault alarm information to the process control system.
6. The control device for the compatible servo motor regulating valve and the stepping motor regulating valve according to any one of claims 1 to 4, further comprising a display screen communication module; The display screen communication module is connected with the processor module and is used for receiving a control setting signal of a user and sending the control setting signal to the processor module.
7. The control device compatible with servo motor regulating valves and stepping motor regulating valves according to claim 6, further comprising a human body infrared monitoring module; the human body infrared monitoring module is connected with the display screen communication module and is used for controlling the display screen communication module to be turned on when a mobile infrared object is detected, and controlling the display screen communication module to be turned off when the mobile infrared object is not detected within a preset time period.
8. The control device for the compatible servo motor regulating valve and the stepper motor regulating valve according to any one of claims 1 to 4, wherein the communication interface module comprises three signal interfaces of Ethernet, RS485 and 4 to 20 mA.
9. The control device for the compatible servo motor regulating valve and the stepper motor regulating valve according to any one of claims 1 to 4, wherein the main frequency 180MHz, the flash memory 1024K and the SRAM capacity 256K of the processor module comprise 140I/O interfaces, 8 serial ports, 6 SPI interfaces, 14 timers, 2 CAN communication interfaces and 1 Ethernet kernel module.
10. The control device for a compatible servo motor regulator valve, a stepper motor regulator valve according to any one of claims 1-4, further comprising a power module; The power module is used for providing working power for the servo driver module, the step driver module and the processor module.

Description

Control device compatible with servo motor regulating valve and stepping motor regulating valve Technical Field The application belongs to the technical field of valve control, and particularly relates to a control device compatible with a servo motor regulating valve and a stepping motor regulating valve. Background The uranium enrichment factory realizes continuous and stable material transfer in the system pipeline and mainly depends on grading adjustment of an electric adjusting valve. At present, an on-line running electric regulating valve is divided into a servo motor regulating valve and a stepping motor regulating valve, and a controller device matched with the servo motor regulating valve is a servo motor controller and a stepping motor controller. However, the number of the servo motor regulating valves and the stepping motor regulating valves in the system operation is large, but the servo motor controllers and the stepping motor controllers which are matched with the servo motor regulating valves and the stepping motor regulating valves are not universal, so that two sets of different operation and maintenance procedures and overhaul procedures are needed, and the operation and maintenance cost of the system is increased. Disclosure of Invention The application aims to provide a control device compatible with a servo motor regulating valve and a stepping motor regulating valve, which solves the problems that in the prior art, a servo motor controller and a stepping motor controller are not universal, two sets of different operation and maintenance processes and overhaul procedures are needed, and the operation and maintenance cost of a system is increased. The technical scheme for realizing the purpose of the application comprises the following steps: the embodiment of the application provides a control device compatible with a servo motor regulating valve and a stepping motor regulating valve, which comprises a processor module, a servo driver module, a stepping driver module and a communication interface module; The servo driver module and the stepping driver module are connected with the processor module to form closed-loop control; The servo driver module and the step driver module are respectively used for driving and communicating the servo motor regulating valve and the step motor regulating valve, and the device can work in a servo motor regulating valve working mode or a step motor regulating valve working mode through the switching of the embedded software working modes of the processor module; The processor module is connected with the process control system through the communication interface module and is used for controlling the servo driver module to drive the switching action of the servo motor regulating valve according to the valve opening signal sent by the process control system, or controlling the step driver module to drive the switching action of the step motor regulating valve and feeding back the regulated opening value to the process control system through the communication interface module. Optionally, the processor module is specifically configured to: After receiving the valve opening signal, invoking a PID software algorithm, converting the valve opening signal into a step distance adjusting signal of the servo motor adjusting valve, and sending the step distance adjusting signal to the servo motor adjusting valve through the servo driver module to execute valve opening or closing actions; Or after receiving the valve opening signal, calling a PID software algorithm, converting the valve opening signal into a step distance adjusting signal of the stepping motor adjusting valve, and sending the step distance adjusting signal to the stepping motor adjusting valve through the stepping motor driver module to execute valve opening or closing actions. Optionally, the processor module specifically comprises two working modes, namely a following process control system PID regulation mode and an independent PID regulation mode; when the following process control system is operated in the PID regulation mode, receiving a current real-time valve target opening signal output by the process control system through the communication interface module, and taking the current real-time valve target opening signal as the valve opening signal; When the automatic control system works in the independent PID regulation mode, the communication interface module receives a pressure regulation target set value output by the process control system, and according to a pre-valve pressure value and a post-valve pressure value of a target valve, the opening value and the required regulation step distance of the target valve are calculated through an embedded PID algorithm and used as the valve opening signal, wherein the target valve is the servo motor regulating valve or the stepping motor regulating valve. Optionally, when operating in the independent PID adjustment mode, PID control is perform