A method and system for monitoring the state of a hydraulic valve group of a continuous casting straightening section

Abstract

This invention relates to a method and system for monitoring the status of hydraulic valve groups in a continuous casting straightening section, belonging to the technical field of continuous casting machine monitoring methods and systems. The technical solution of this invention is as follows: Key process values ​​of hydraulic oil flow and temperature in chambers A and B of the hydraulic enabler valve group of the drive roller in the continuous casting straightening section are collected; key process values ​​of hydraulic oil flow and temperature in the pressure oil pipe P to the pressure oil pipe of the clamping cylinder hydraulic enabler valve group are collected; key process values ​​of hydraulic oil flow and temperature in the return oil pipe T to the pressure oil pipe of the clamping cylinder hydraulic enabler valve group are collected; the collected data are processed according to a monitoring and control model algorithm; based on the processed data, fault points are preventively alarmed, and alarm information is pushed to the end user. The beneficial effects of this invention are: stable operation of the hydraulic valve group in the continuous casting straightening section, ensuring the accuracy of the straightening equipment meets standards, improving billet quality, while saving manpower, reducing costs and increasing efficiency, and ensuring stable operation of continuous casting production.

Description

Technical Field

[0001] This invention relates to a method and system for monitoring the status of hydraulic valve groups in the straightening section of continuous casting, belonging to the technical field of continuous casting machine monitoring methods and systems. Background Technology

[0002] Continuous casting is a core component of the steelmaking process, a crucial link between steelmaking and rolling, and directly determines the output, cost, and quality of steel. The continuous casting straightening section is the heart of the continuous casting production line; its healthy operation not only directly impacts the company's production rhythm but also significantly affects the quality of the produced products.

[0003] Straight-arc slab continuous casting machines require the design of bending and straightening zones. In the straightening zone, the arc-shaped slab needs to be straightened into a straight line, which applies a certain straightening force. If the roll gap in the straightening section cannot be precisely controlled, it will affect the quality of the slab and may even cause equipment accidents due to excessive straightening force. The hydraulic valve assembly in the straightening section is crucial for controlling the roll gap accuracy. However, according to our investigation, the high-temperature and humid working environment, harsh site conditions, large number of sector sections, and insufficient attention given to them in the continuous casting machine's sector section have resulted in ineffective monitoring of the hydraulic valve assembly, leading to unstable product quality and equipment condition. Summary of the Invention

[0004] The purpose of this invention is to provide a method and system for monitoring the status of hydraulic valve groups in the continuous casting straightening section. By using sensing devices to detect key process data such as flow rate and temperature within the hydraulic valve group, and centering on a control and judgment system, the system collects, analyzes, and compares data. It then provides diagnostic alarms for abnormal data, promptly addresses fault points, ensures stable operation of the hydraulic valve group in the continuous casting straightening section, guarantees the accuracy of the straightening equipment, improves billet quality, saves manpower, reduces costs and increases efficiency, and ensures stable operation of continuous casting production. This effectively solves the aforementioned problems existing in the background technology.

[0005] The technical solution of this invention is: a method for monitoring the status of hydraulic valve groups in a continuous casting straightening section, comprising the following steps:

[0006] S1. Collect key process values ​​of hydraulic oil flow and temperature in chambers A and B of the hydraulic enabler valve group of the drive roller in the continuous casting straightening section, key process values ​​of hydraulic oil flow and temperature in the pressure pipe P of the clamping cylinder hydraulic enabler valve group, and key process values ​​of hydraulic oil flow and temperature in the return pipe T of the clamping cylinder hydraulic enabler valve group.

[0007] S2. Process the collected data according to the monitoring and control model algorithm;

[0008] S3. Based on the processed data, preventive alarms are triggered at the fault points, and the alarm information is pushed to the end user.

[0009] In step S1, the specific steps are as follows: Record the changes in the values ​​of the flow sensor and temperature sensor of the hydraulic valve group in the straightening section of the continuous casting; pressure oil is output from the outlet pipeline of the clamping cylinder enable valve group in the straightening sector section. The pressure oil passes through the pressure pipe equipped with the flow sensor and temperature sensor, reaching the hydraulic control valve group of the straightening section hydraulic cylinder. The return oil from the hydraulic control valve group returns to the hydraulic station oil tank through the return oil pipe equipped with the flow sensor and temperature sensor. Simultaneously, the outlet chambers A and B of the straightening sector section drive roller enable valve are connected to the drive roller hydraulic cylinder. Pressure sensors and temperature sensors are installed on the pipes of chambers A and B; collect the key process values ​​of the flow sensor and temperature sensor of the straightening sector section drive roller enable valve group, and the flow sensor and temperature sensor values ​​of the clamping cylinder enable valve group; and interact with the data acquisition and monitoring system through the clamping cylinder analog transmitter, drive roller analog transmitter, and receiver.

[0010] In step S2, the specific steps are as follows: Based on the key process values ​​of the outlet flow sensor and temperature sensor of the straightening section enable valve group collected on site, they are transmitted to the acquisition and monitoring system to form a key process data package. The key process data package is analyzed in combination with the judgment rules formulated based on the equipment parameters to obtain the abnormal status information of the straightening section hydraulic valve group and provide an alarm prompt. Then, the acquisition and monitoring system is continuously optimized and improved.

[0011] The formula for determining the action speed value of the hydraulic cylinder in the straightening section is:

[0012]

[0013] Where: V.... is the rising or falling speed of a hydraulic cylinder in the straightening section, in mm / s;

[0014] Where: Q..... is the hydraulic oil flow rate (ml / min) during the time the solenoid directional valve is energized to control the rise or fall of the straightening section control valve;

[0015] ...When the hydraulic cylinder of the straightening section control valve group rises or falls, the diameter of the pressure oil pipe entering the hydraulic cylinder cavity is mm.

[0016] In step S3, the alarm information is pushed to the end user via 5G communication.

[0017] In step S3, the status of the hydraulic valve group in the continuous casting straightening section is determined as follows:

[0018] For the clamping cylinder hydraulic valve group, (a) collect the pressure oil pipe flow rate, return oil pipe flow rate, and temperature value under production mode. In casting mode, if the pressure oil pipe flow rate remains unchanged for 30 seconds, while the return oil pipe flow rate and temperature value increase, the control valve group position alarm will be triggered. Check the hydraulic check valve and sequence valve. In casting mode, if the pressure oil pipe and return oil pipe change simultaneously within 1 minute, more than 10 times, and the temperature sensor value increases, the hydraulic cylinder status alarm will be triggered. Check the hydraulic cylinder status. (b) Collect the pressure oil pipe flow rate under production mode. In roll gap inspection mode, if the roll gap in the straightening section changes from 235mm to 240.5mm, the actual flow rate must not be greater than 10% compared with the design value during this period. Otherwise, the control valve group flow alarm will be triggered. Check the damping orifice diameter. (c) Collect the pressure oil pipe and return oil pipe flow rate under production mode. In casting mode, if the pressure oil pipe and return oil pipe flow rate remain unchanged for more than 5 minutes, the control valve position over-limit alarm will be triggered. Check and confirm whether the enable valve solenoid valve is de-energized.

[0019] The hydraulic cylinder hydraulic valve group is driven, and the flow sensor values ​​of hydraulic cylinder A and B chambers are collected in the production mode. In the ingot feeding mode, if the flow of hydraulic cylinder A and B chambers does not increase within 10 seconds, the control valve position alarm will be triggered and the drive roller will not be lifted. In the casting mode, if the temperature sensor values ​​installed in chambers A and B increase, the hydraulic cylinder status alarm will be triggered and the hydraulic cylinder status will be checked and confirmed.

[0020] Based on the above analysis and judgment, key data alarm information is issued to precision inspection terminal users for timely prevention and handling.

[0021] A continuous casting straightening section hydraulic valve group status monitoring system includes a pressure pipe flow sensor, a pressure pipe temperature sensor, a return oil pipe flow sensor, a return oil pipe temperature sensor, a clamping cylinder analog transmitter, a receiver, a data acquisition and monitoring system, a user terminal, a drive roller analog transmitter, a B-cavity temperature sensor, a B-cavity flow sensor, an A-cavity temperature sensor, and an A-cavity flow sensor. The pressure pipe flow sensor and pressure pipe temperature sensor are mounted on the pressure pipe, and the return oil pipe flow sensor and return oil pipe temperature sensor are mounted on the return oil pipe. These sensors are connected to the clamping cylinder analog transmitter. The B-cavity temperature sensor and B-cavity flow sensor are mounted in the B-cavity, and the A-cavity temperature sensor and A-cavity flow sensor are mounted in the A-cavity. These sensors are connected to the drive roller analog transmitter. The clamping cylinder analog transmitter and the drive roller analog transmitter are matched with the receiver. The receiver is connected to the data acquisition and monitoring system, which is connected to the user terminal.

[0022] It also includes a 4G / 5G network communication device, and the data acquisition and monitoring system is connected to the user terminal through the 4G / 5G network communication device.

[0023] The beneficial effects of this invention are as follows: By using sensing devices for key process data such as flow and temperature in the hydraulic valve group of the continuous casting straightening section, and with the control and judgment system as the center, data is collected, analyzed, and compared. This provides diagnostic alarm information for abnormal data, promptly handles fault points, ensures stable operation of the hydraulic valve group of the continuous casting straightening section, ensures that the straightening section equipment meets the accuracy standards, improves the quality of the cast billet, saves manpower, reduces costs and increases efficiency, and ensures stable operation of continuous casting production. Attached Figure Description

[0024] Figure 1 This is a flowchart of the process of this invention;

[0025] Figure 2 This is a schematic diagram of the system structure of the present invention;

[0026] In the diagram: 1. Clamping hydraulic cylinder of straightening section; 2. Clamping cylinder control valve assembly; 3. Pressure pipe flow sensor; 4. Pressure pipe temperature sensor; 5. Return oil pipe flow sensor; 6. Return oil pipe temperature sensor; 7. Clamping cylinder analog transmitter; 8. Receiver; 9. Data acquisition and monitoring system; 10. 4G / 5G network communication device; 11. User terminal; 12. Clamping cylinder enable control valve assembly; 13. Drive roller analog transmitter; 14. B chamber temperature sensor; 15. B chamber flow sensor; 16. A chamber temperature sensor; 17. A chamber flow sensor; 18. Drive roller control valve assembly; 19. Drive roller enable control valve assembly; 20. Pressure pipe; 21. Return oil pipe; 22. A chamber; 23. B chamber. Detailed Implementation

[0027] To make the purpose, technical solutions, and advantages of the invention's embodiments clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only a small part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0028] A method for monitoring the status of hydraulic valve groups in a continuous casting straightening section includes the following steps:

[0029] S1. Collect key process values ​​of hydraulic oil flow and temperature in chambers A and B of the hydraulic enabler valve group of the drive roller in the continuous casting straightening section, key process values ​​of hydraulic oil flow and temperature in the pressure pipe P of the clamping cylinder hydraulic enabler valve group, and key process values ​​of hydraulic oil flow and temperature in the return pipe T of the clamping cylinder hydraulic enabler valve group.

[0030] S2. Process the collected data according to the monitoring and control model algorithm;

[0031] S3. Based on the processed data, preventive alarms are triggered at the fault points, and the alarm information is pushed to the end user.

[0032] In step S1, the specific steps are as follows: Record the changes in the values ​​of the flow sensor and temperature sensor of the hydraulic valve group in the straightening section of the continuous casting; pressure oil is output from the outlet pipeline of the clamping cylinder enable valve group in the straightening sector section. The pressure oil passes through the pressure pipe equipped with the flow sensor and temperature sensor, reaching the hydraulic control valve group of the straightening section hydraulic cylinder. The return oil from the hydraulic control valve group returns to the hydraulic station oil tank through the return oil pipe equipped with the flow sensor and temperature sensor. Simultaneously, the outlet chambers A and B of the straightening sector section drive roller enable valve are connected to the drive roller hydraulic cylinder. Pressure sensors and temperature sensors are installed on the pipes of chambers A and B; collect the key process values ​​of the flow sensor and temperature sensor of the straightening sector section drive roller enable valve group, and the flow sensor and temperature sensor values ​​of the clamping cylinder enable valve group; and interact with the data acquisition and monitoring system through the clamping cylinder analog transmitter, drive roller analog transmitter, and receiver.

[0033] In step S2, the specific steps are as follows: Based on the key process values ​​of the outlet flow sensor and temperature sensor of the straightening section enable valve group collected on site, they are transmitted to the acquisition and monitoring system to form a key process data package. The key process data package is analyzed in combination with the judgment rules formulated based on the equipment parameters to obtain the abnormal status information of the straightening section hydraulic valve group and provide an alarm prompt. Then, the acquisition and monitoring system is continuously optimized and improved.

[0034] The formula for determining the action speed value of the hydraulic cylinder in the straightening section is:

[0035]

[0036] Where: V.... is the rising or falling speed of a hydraulic cylinder in the straightening section, in mm / s;

[0037] Where: Q..... is the hydraulic oil flow rate (ml / min) during the time the solenoid directional valve is energized to control the rise or fall of the straightening section control valve;

[0038] ...When the hydraulic cylinder of the straightening section control valve group rises or falls, the diameter of the pressure oil pipe entering the hydraulic cylinder cavity is mm.

[0039] In step S3, the alarm information is pushed to the end user via 5G communication.

[0040] In step S3, the status of the hydraulic valve group in the continuous casting straightening section is determined as follows:

[0041] For the clamping cylinder hydraulic valve group, (a) collect the pressure oil pipe flow rate, return oil pipe flow rate, and temperature value under production mode. In casting mode, if the pressure oil pipe flow rate remains unchanged for 30 seconds, while the return oil pipe flow rate and temperature value increase, the control valve group position alarm will be triggered. Check the hydraulic check valve and sequence valve. In casting mode, if the pressure oil pipe and return oil pipe change simultaneously within 1 minute, more than 10 times, and the temperature sensor value increases, the hydraulic cylinder status alarm will be triggered. Check the hydraulic cylinder status. (b) Collect the pressure oil pipe flow rate under production mode. In roll gap inspection mode, if the roll gap in the straightening section changes from 235mm to 240.5mm, the actual flow rate must not be greater than 10% compared with the design value during this period. Otherwise, the control valve group flow alarm will be triggered. Check the damping orifice diameter. (c) Collect the pressure oil pipe and return oil pipe flow rate under production mode. In casting mode, if the pressure oil pipe and return oil pipe flow rate remain unchanged for more than 5 minutes, the control valve position over-limit alarm will be triggered. Check and confirm whether the enable valve solenoid valve is de-energized.

[0042] The hydraulic cylinder hydraulic valve group is driven, and the flow sensor values ​​of hydraulic cylinder A and B chambers are collected in the production mode. In the ingot feeding mode, if the flow of hydraulic cylinder A and B chambers does not increase within 10 seconds, the control valve position alarm will be triggered and the drive roller will not be lifted. In the casting mode, if the temperature sensor values ​​installed in chambers A and B increase, the hydraulic cylinder status alarm will be triggered and the hydraulic cylinder status will be checked and confirmed.

[0043] Based on the above analysis and judgment, key data alarm information is issued to precision inspection terminal users for timely prevention and handling.

[0044] A continuous casting straightening section hydraulic valve group status monitoring system includes a pressure pipe flow sensor 3, a pressure pipe temperature sensor 4, a return oil pipe flow sensor 5, a return oil pipe temperature sensor 6, a clamping cylinder analog transmitter 7, a receiver 8, a data acquisition and monitoring system 9, a user terminal 11, a drive roller analog transmitter 13, a B-cavity temperature sensor 14, a B-cavity flow sensor 15, an A-cavity temperature sensor 16, and an A-cavity flow sensor 17. The pressure pipe flow sensor 3 and pressure pipe temperature sensor 4 are mounted on the pressure pipe 21, and the return oil pipe flow sensor 5 and return oil pipe temperature sensor 6 are mounted on the return oil pipe 22. Pressure pipe temperature sensor 4, return oil pipe flow sensor 5, and return oil pipe temperature sensor 6 are respectively connected to clamping cylinder analog transmitter 7; B chamber temperature sensor 14 and B chamber flow sensor 15 are installed in B chamber 24, and A chamber temperature sensor 16 and A chamber flow sensor 17 are installed in A chamber 23. B chamber temperature sensor 14, B chamber flow sensor 15, A chamber temperature sensor 16, and A chamber flow sensor 17 are respectively connected to drive roller analog transmitter 13; clamping cylinder analog transmitter 7 and drive roller analog transmitter 13 are matched with receiver 8, receiver 8 is connected to acquisition and monitoring system 9, and acquisition and monitoring system 9 is connected to user terminal 11.

[0045] It also includes a 4G / 5G network communication device 10, through which the data acquisition and monitoring system 9 is connected to the user terminal 11.

[0046] In practical applications, this invention includes the following steps:

[0047] S1. Collect key process values ​​of hydraulic oil flow and temperature in chambers A and B of the hydraulic energy valve group of the drive roller in the straightening section of the continuous casting, key process values ​​of hydraulic oil flow and temperature in the pressure oil pipe P to the pressure oil pipe of the hydraulic energy valve group of the clamping cylinder, and key process values ​​of hydraulic oil flow and temperature in the return oil pipe T to the pressure oil pipe of the hydraulic enable valve group of the clamping cylinder.

[0048] S2. Process the collected data according to the monitoring and control model algorithm;

[0049] S3. Based on the processed data, preventive alarms are triggered at the fault points, and the alarm information is pushed to the end user via 5G communication.

[0050] In step S1, the specific steps are as follows: Record the changes in the values ​​of the flow sensor and temperature sensor of the hydraulic valve group in the straightening section of the continuous casting; pressure oil is output from the outlet pipeline of the clamping cylinder enable valve group in the straightening sector section. The pressure oil passes through a pressure pipe equipped with a flow sensor and a temperature sensor, reaching the hydraulic control valve group of the straightening section hydraulic cylinder. The return oil from the hydraulic control valve group returns to the hydraulic station oil tank through a return oil pipe equipped with a flow sensor and a temperature sensor. Simultaneously, the outlet chambers A and B of the straightening sector section drive roller enable valve are connected to the drive roller hydraulic cylinder. Pressure sensors and temperature sensors are installed on the pipes in chambers A and B; collect the flow sensor and temperature sensor values ​​of the straightening sector section drive roller enable valve group and the clamping cylinder enable valve group; and interact with the data acquisition and monitoring system via a wireless transmitter and receiver.

[0051] In step S2, the specific steps are as follows: Based on the key process values ​​of the outlet flow sensor and temperature sensor of the hydraulic enable valve group of the straightening section collected on site, they are transmitted to the acquisition and monitoring system to form a key process data package. The key process data package is analyzed in combination with the judgment rules formulated based on the equipment parameters to obtain the abnormal status information of the hydraulic valve group of the straightening section and to provide an alarm prompt. Then, the acquisition and monitoring system is continuously optimized and improved.

[0052] The formula for determining the action speed value of the hydraulic cylinder in the straightening section is:

[0053]

[0054] In the formula: V.... the rising or falling speed of a hydraulic cylinder in the straightening section, in mm / s

[0055] Where: Q..... is the hydraulic oil flow rate (ml / min) during the time the solenoid directional valve is energized to control the rise or fall of the straightening section control valve;

[0056] ...When the hydraulic cylinder of the straightening section control valve group rises or falls, the diameter of the pressure oil pipe entering the hydraulic cylinder cavity is mm.

[0057] In step S3, the status of the hydraulic valve group in the continuous casting straightening section is determined as follows:

[0058]

[0059] Based on the above analysis and judgment, key data alarm information is issued to precision inspection terminal users for timely prevention and handling.

[0060] Example:

[0061] Using a 230*1900 slab continuous casting machine with an arc radius of 9.5 meters, and incorporating imported control technology, the system monitors the abnormal states of the hydraulic valve group in the straightening section, which comprises the crystallizer, bending section, and 14 sector sections, including 7 and 8 straightening sections. The specific installation locations are as follows: Figure 2 As shown, by collecting and analyzing the values ​​from flow sensors and temperature sensors, alarm information for abnormal critical processes is sent:

[0062] During casting mode, the continuous casting machine is in production. At this time, the key values ​​of the pressure oil pipe in the straightening section are monitored. The flow rate fluctuates within ±1.2 ml / min, which is considered to be a normal flow rate with no fluctuation. However, if the return oil T-pipe flow rate gradually increases within a 30-second collection and judgment cycle, and the return oil T-pipe temperature shows a continuous upward trend within 10 minutes, an alarm message is sent after data collection and analysis to indicate the position alarm of the straightening section clamping cylinder control valve group. A guiding handling strategy is output. On-site inspection revealed that the hydraulic control check valve of the hydraulic valve group was leaking, and the pressure oil returned to the oil tank through the return oil pipe, causing the return oil pipe flow sensor and temperature sensor to malfunction.

[0063] The monitoring and diagnostic system of this invention consists of a pressure pipe flow sensor 3, a pressure pipe temperature sensor 4, a return oil pipe flow sensor 5, a return oil pipe temperature sensor 6, a clamping cylinder analog transmitter 7, a receiver 8, a data acquisition and monitoring system 9, a drive roller analog transmitter 13, a B-cavity temperature sensor 14, a B-cavity flow sensor 15, an A-cavity temperature sensor 16, an A-cavity flow sensor, and an A-cavity flow sensor 17. The system collects pressure and flow signals, which are processed, analyzed, and analyzed by the server. After identifying abnormal information, an alarm message is given. Equipment inspectors can quickly handle the fault point based on this information to prevent accidents from occurring.

Claims

1. A method for monitoring the status of hydraulic valve groups in a continuous casting straightening section, characterized in that... Includes the following steps: S1. Collect key process values ​​of hydraulic oil flow and temperature in chambers A and B of the hydraulic enabler valve group of the drive roller in the continuous casting straightening section, key process values ​​of hydraulic oil flow and temperature in the pressure pipe P of the clamping cylinder hydraulic enabler valve group, and key process values ​​of hydraulic oil flow and temperature in the return pipe T of the clamping cylinder hydraulic enabler valve group. S2. Process the collected data according to the monitoring and control model algorithm; S3. Based on the processed data, preventative alarms are triggered for fault points, and alarm information is pushed to end users; the status of the hydraulic valve group in the continuous casting straightening section is determined as follows: For the clamping cylinder hydraulic valve group, (a) collect the pressure oil pipe flow rate, return oil pipe flow rate, and temperature value under production mode. In casting mode, if the pressure oil pipe flow rate remains unchanged for 30 seconds, while the return oil pipe flow rate and temperature value increase, the control valve group position alarm will be triggered. Check the hydraulic check valve and sequence valve. In casting mode, if the pressure oil pipe and return oil pipe change simultaneously within 1 minute, more than 10 times, and the temperature sensor value increases, the hydraulic cylinder status alarm will be triggered. Check the hydraulic cylinder status. (b) Collect the pressure oil pipe flow rate under production mode. In roll gap inspection mode, if the roll gap in the straightening section changes from 235mm to 240.5mm, the actual flow rate must not be greater than 10% compared with the design value during this period. Otherwise, the control valve group flow alarm will be triggered. Check the damping orifice diameter. (c) Collect the pressure oil pipe and return oil pipe flow rate under production mode. In casting mode, if the pressure oil pipe and return oil pipe flow rate remain unchanged for more than 5 minutes, the control valve position over-limit alarm will be triggered. Check and confirm whether the enable valve solenoid valve is de-energized. The hydraulic cylinder hydraulic valve group is driven, and the flow sensor values ​​of hydraulic cylinder A and B chambers are collected in the production mode. In the feeding spindle mode, if the flow of hydraulic cylinder A and B chambers of the drive roller does not increase within 10 seconds, the control valve position alarm will be triggered and the drive roller will not be lifted. In casting mode, the temperature sensor values ​​installed in cavity A and cavity B increase, triggering an alarm on the status of the hydraulic cylinder driving roller. Check and confirm the status of the hydraulic cylinder. Based on the above assessment, critical data alarm information is sent to the precision inspection terminal user for timely prevention and handling.

2. The method for monitoring the status of hydraulic valve groups in a continuous casting straightening section according to claim 1, characterized in that: In step S1, the specific steps are as follows: Record the changes in the values ​​of the flow sensor and temperature sensor of the hydraulic valve group in the straightening section of the continuous casting; pressure oil is output from the outlet pipeline of the clamping cylinder enable valve group in the straightening sector section. The pressure oil passes through the pressure pipe equipped with the flow sensor and temperature sensor, reaching the hydraulic control valve group of the straightening section hydraulic cylinder. The return oil from the hydraulic control valve group returns to the hydraulic station oil tank through the return oil pipe equipped with the flow sensor and temperature sensor. Simultaneously, the outlet chambers A and B of the straightening sector section drive roller enable valve are connected to the drive roller hydraulic cylinder. Pressure sensors and temperature sensors are installed on the pipes of chambers A and B; collect the key process values ​​of the flow sensor and temperature sensor of the straightening sector section drive roller enable valve group, and the flow sensor and temperature sensor values ​​of the clamping cylinder enable valve group; and interact with the data acquisition and monitoring system through the clamping cylinder analog transmitter, drive roller analog transmitter, and receiver.

3. The method for monitoring the status of hydraulic valve groups in a continuous casting straightening section according to claim 1, characterized in that: In step S2, the specific steps are as follows: Based on the key process values ​​of the outlet flow sensor and temperature sensor of the straightening section enable valve group collected on site, they are transmitted to the acquisition and monitoring system to form a key process data package. The key process data package is analyzed in combination with the judgment rules formulated based on the equipment parameters to obtain the abnormal status information of the straightening section hydraulic valve group and provide an alarm prompt. Then, the acquisition and monitoring system is continuously optimized and improved. The formula for determining the action speed value of the hydraulic cylinder in the straightening section is: , Where: V.... is the rising or falling speed of a hydraulic cylinder in the straightening section, in mm / s; Where: Q..... is the hydraulic oil flow rate (ml / min) during the time the solenoid directional valve is energized to control the rise or fall of the straightening section control valve; ...When the hydraulic cylinder of the straightening section control valve group rises or falls, the diameter of the pressure oil pipe entering the hydraulic cylinder cavity is mm.

4. The method for monitoring the status of hydraulic valve groups in a continuous casting straightening section according to claim 1, characterized in that: In step S3, the alarm information is pushed to the end user via 5G communication.

5. A continuous casting straightening section hydraulic valve group status monitoring system used in the continuous casting straightening section hydraulic valve group status monitoring method according to any one of claims 1 to 4, characterized in that: The system includes a pressure pipe flow sensor (3), a pressure pipe temperature sensor (4), a return oil pipe flow sensor (5), a return oil pipe temperature sensor (6), a clamping cylinder analog transmitter (7), a receiver (8), a data acquisition and monitoring system (9), a user terminal (11), a drive roller analog transmitter (13), a B-cavity temperature sensor (14), a B-cavity flow sensor (15), an A-cavity temperature sensor (16), and an A-cavity flow sensor (17). The pressure pipe flow sensor (3) and the pressure pipe temperature sensor (4) are installed on the pressure pipe (21), and the return oil pipe flow sensor (5) and the return oil pipe temperature sensor (6) are installed on the return oil pipe (22). The return oil pipe flow sensor (5) and the return oil pipe temperature sensor (6) are respectively connected to the clamping cylinder analog transmitter (7); the B chamber temperature sensor (14) and the B chamber flow sensor (15) are installed in the B chamber (24), the A chamber temperature sensor (16) and the A chamber flow sensor (17) are installed in the A chamber (23), the B chamber temperature sensor (14), the B chamber flow sensor (15), the A chamber temperature sensor (16) and the A chamber flow sensor (17) are respectively connected to the drive roller analog transmitter (13); the clamping cylinder analog transmitter (7) and the drive roller analog transmitter (13) are matched with the receiver (8), the receiver (8) is connected to the acquisition and monitoring system (9), and the acquisition and monitoring system (9) is connected to the user terminal (11).

6. The continuous casting straightening section hydraulic valve group status monitoring system according to claim 5, characterized in that: It also includes a 4G / 5G network communication device (10), and the data acquisition and monitoring system (9) is connected to the user terminal (11) through the 4G / 5G network communication device (10).

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