Multi-system fusion control method

Abstract

The invention discloses a multi-system fusion control method. A water purification station sludge water treatment control system and a water purification station control system of a power plant are independently controlled, and the two systems need to be equipped with two operators and cannot be seamlessly connected and put into operation at the same time. The method comprises the following steps that a water purification station sludge water treatment control system is connected into a water purification station control system, an original water purification station control system upper computer is migrated to a sludge water treatment system central control room, the sludge water treatment control room monitors the whole system, and a water purification station sludge water system configuration picture is integrated into an original water purification station system configuration picture. The method is used for multi-system fusion control.

Description

Technical Field

[0001] The invention relates to a multi-system fusion control method. Background Art

[0002] The sludge water treatment control system of the power plant's water purification station and the water purification station control system are controlled separately. The two systems need to be equipped with two sets of operators, and the two systems cannot be seamlessly connected and put into operation. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems and provide a multi-system fusion control method.

[0004] The above purpose is achieved through the following technical solutions: A multi-system fusion control method, the method comprising the following steps: (1) The muddy water treatment control system of the water purification station is connected to the water purification station control system, and the host computer of the original water purification station control system is migrated to the muddy water treatment system control room. The muddy water treatment control room monitors the entire system, and the configuration screen of the muddy water treatment system of the water purification station is integrated into the configuration screen of the original water purification station system; (2) The variables of the water treatment plant are named with the prefix JS, while the variables of the sludge discharge plant are named with the prefix PN; (3) The cover is the first interface after the system is running. After opening, it will automatically jump to the overview of the purification station DCS system; (4) Select the system you want to enter in the overall view of the purification station DCS system. Selecting different systems will enter the corresponding screen. Click on the mud water discharge screen to enter the desludging system.

[0005] The multi-system fusion control method, the overall view of the purification station DCS system includes displaying the system time, displaying the currently logged-in user name and whether the history record function is turned on, administrator login, password modification, administrator logout and system exit.

[0006] The multi-system fusion control method, the desludging system interface includes returning to the overall view, and after clicking, returning to the overall view of the purification station DCS system; Desludging electrical system, click to enter the desludging electrical system; Mud and water collection system, click to enter the mud and water collection system; Sludge concentration system, click to enter the sludge concentration system; Recycled water system, click to enter the recycled water system; System automatic operation, click to open the system automatic operation interface, manual automatic switching and automatic start and stop are operated in this interface; Curve, click to enter the curve interface, and switch to view the current, liquid level, and centrifuge related curves; Report, click to enter the report interface, where you can query historical data; Alarm, click to enter the alarm interface and view historical alarms.

[0007] Fault reset: click to reset all faults except device hardware faults. Beneficial Effects

[0008] 1. The present invention connects two control systems, which not only ensures the safety and accuracy of each working step, but also enables fast switching and seamless connection with the original water purification station control, ensuring that the monitoring operation of the original water purification station is not disturbed during the process.

[0009] 2. The water purification station control system of the present invention and the sludge water discharge control system PLC and configuration software are in the same series and are perfectly compatible.

[0010] 3. The present invention saves space and an operator station. The configuration screen of the mud water discharge system of the water purification station is integrated into the configuration screen of the original water purification station system. All operations of the two systems can be realized in the mud water discharge control room, and the original purification station control room and operator station can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the present invention. DETAILED DESCRIPTION

[0012] A multi-system fusion control method, the method comprising the following steps: (1) The muddy water treatment control system of the water purification station is connected to the water purification station control system, and the host computer of the original water purification station control system is migrated to the muddy water treatment system control room. The muddy water treatment control room monitors the entire system, and the configuration screen of the muddy water treatment system of the water purification station is integrated into the configuration screen of the original water purification station system; (2) The variables of the water treatment plant are named with the prefix JS, while the variables of the sludge discharge plant are named with the prefix PN; (3) The cover is the first interface after the system is running. After opening, it will automatically jump to the overview of the purification station DCS system; (4) Select the system you want to enter in the overall view of the purification station DCS system. Selecting different systems will enter the corresponding screen. Click on the mud water discharge screen to enter the desludging system.

[0013] The overall picture of the purification station DCS system includes: Displays the system time.

[0014] Displays the currently logged in user name and whether the history function is turned on.

[0015] Administrator login: Click to log in as a user; different users can operate different devices.

[0016] Change password: You can change the user's password.

[0017] Administrator logout: Click to log out the current user.

[0018] Exit system: After logging in as "System Administrator", you can stop the DCS system. The desludging system interface includes a return to the overall view, which returns to the overall view of the purification station DCS system after clicking; Desludging electrical system, click to enter the desludging electrical system; Mud and water collection system, click to enter the mud and water collection system; Sludge concentration system, click to enter the sludge concentration system; Recycled water system, click to enter the recycled water system; System automatic operation, click to open the system automatic operation interface, manual automatic switching and automatic start and stop are operated in this interface; Curve, click to enter the curve interface, and switch to view the current, liquid level, and centrifuge related curves; Report, click to enter the report interface, where you can query historical data; Alarm, click to enter the alarm interface and view historical alarms.

[0019] Fault reset: click to reset all faults except device hardware faults.

[0020] Color description of all valves and pumps: White: intermediate state.

[0021] Green: The valve is in the fully closed state and the pump is in the stopped state.

[0022] Red: The valve is fully open and the pump is running.

[0023] Flashing yellow: There is a fault in the device, including device-level fault and program fault. If it is still flashing after the device-level fault is eliminated, you can click the "Fault Reset" button to reset it.

[0024] System design phase: From the beginning of the overall system design, the sludge water treatment control system is systematically and detailedly designed, and the connection and coordination with the original water purification station control system are comprehensively considered, including the control system hardware, software, power supply, network communication and other aspects, to ensure that the sludge water treatment control system has clear independence from the original water purification station control system, avoid conflicts in hardware resources, and at the same time facilitate connection and integration.

[0025] The sub-item design of the system, the numbering and naming of each equipment, the IO signal table, the detailed wiring diagram of the control cabinet, etc., all clearly distinguish the two control systems to ensure no duplication of design and no conflicts between the systems.

[0026] Software programming and configuration: The control system software includes PLC control software and upper monitoring screen software. The PLC controller for mud water treatment is independent of the original water purification station controller. The PLC control programming software we configured can program the two systems separately. In the process of programming the PLC control program for mud water treatment, we use clearly distinguished variable name definitions, IP addresses and other rules to ensure that the two systems are independent and do not affect each other.

[0027] Two system variable names are defined In order to distinguish the duplication of variables in the water purification station and the mud discharge station, the variables of the two systems are named according to different rules. The variables of the water purification station are named with the prefix "JS", and the variables of the mud discharge station are named with the prefix "PN". In this way, when the system is integrated, the variable ownership of each system can be clearly known, and there will be no conflict in the variables causing inaccurate data. It is also convenient for maintenance personnel to understand the variable attributes of each device more intuitively. The following is a simple example of the variables: A. Definition of BOOL type variable of mud discharge station: For example, "#1 sludge feed pump failure", the defined variable is "PN33AP001FT". B. Definition of REAL type variable of mud discharge station: For example, the variable defined for "recycling pool liquid level" is "PN60CL101". C. Definition of BOOL type variable of water purification station: For example, in “#2 Accelerator pool mixer running status”, the defined variable is “JS404Q”. D. Definition of REAL type variable of water purification station: For example, the variable defined for the valve position of the #1 radial sedimentation tank discharge gate is JS203ZT. Distinguish the two system IPs The water purification station and the mud discharge station are two different systems, so their IP allocations are also different. If the IPs are the same, it will cause network conflicts, unstable network connections, frequent device disconnections, and some devices will not be able to access network resources, which will also increase network risks. Therefore, different IPs are allocated to the water purification station and the mud discharge station, which can ensure the normal transmission of network data and will not cause network packet loss. The IP allocated to the water purification station is 84.19.24.50, and the IP allocated to the mud discharge station is 192.168.10.1. The networks of the two systems are independent of each other, which improves the stability of the network.

[0028] During the implementation process, the upper-level monitoring screen software programming configuration was carried out. The upper-level screen program was designed according to the idea of ​​monitoring two systems at the same time. The design and configuration were unified in terms of screen style, graphical symbols, animation standards, variable naming, etc., and the new system was fully integrated with the original water purification station system. In order to take into account the monitoring and operation habits of the operating personnel, the screen and operation methods of the original water purification station were integrated and referenced when designing the upper-level software configuration.

[0029] On-site commissioning: During the implementation of this project, two sets of computers (one operator station and one engineer station) from the original water purification station were reused. Therefore, in order not to affect the operation of the original water purification station, configuration debugging computers were used for debugging during the on-site debugging phase, and the engineering project computer was replaced after the on-site debugging was completed.

[0030] At the same time, measures were taken during the on-site debugging phase to isolate it from the original water purification station control system to ensure that it would not affect the operation of the original water purification station.

[0031] On-site commissioning: After the mud water control system is debugged, special measures and steps are taken to connect the two control systems, which not only ensures the safety and accuracy of each working step, but also enables fast switching and seamless connection to the original water purification station control, ensuring that the original water purification station monitoring operation is not disturbed during the process. The switching connection links include: network communication connection, computer shift, and system commissioning.

[0032] Structural layout of desludging electrical system: 1. Display the B-phase current of the PC section incoming switch of the water purification station.

[0033] 2. The "43# offline transformer" can be operated with "closing" and "opening"; the local and remote status, as well as the closing and opening status can be displayed.

[0034] 3. The "8943 switch on the low-voltage side of the desludging transformer" can be "closed" or "opened"; the local and remote status, as well as the closing and opening status can be displayed.

[0035] The main process flow of the mud and water collection and transportation system is: discharge mud and water from radial sedimentation tank and acceleration tank - build a new mud and water collection tank - sludge thickening tank.

[0036] The main process flow of the sludge thickening system is: sludge thickening tank - sludge pump - sludge buffer tank - sludge feed pump - centrifugal dehydrator - sludge transportation; coagulant aid dosing - centrifugal dehydrator. Note: Because there are too many devices in the sludge thickening system to fit on one screen, it is divided into three parts and placed on three screens.

Claims

1. A multi-system fusion control method, characterized by: The method comprises the following steps: (1) The muddy water treatment control system of the water purification station is connected to the water purification station control system, and the host computer of the original water purification station control system is migrated to the muddy water treatment system control room. The muddy water treatment control room monitors the entire system, and the configuration screen of the muddy water treatment system of the water purification station is integrated into the configuration screen of the original water purification station system; (2) The variables of the water treatment plant are named with the prefix JS, while the variables of the sludge discharge plant are named with the prefix PN; (3) The cover is the first interface after the system is running. After opening, it will automatically jump to the overview of the purification station DCS system; (4) Select the system you want to enter in the overall view of the purification station DCS system. Selecting different systems will enter the corresponding screen. Click on the mud water discharge screen to enter the desludging system.

2. A multi-system fusion control method according to claim 1, characterized in that: The DCS system overview of the purification station includes displaying the system time, the currently logged-in user name and whether the history record function is turned on, administrator login, password modification, administrator logout and system exit.

3. The multi-system fusion control method according to claim 1 is characterized in that: The desludging system interface includes a return to the overall view, which returns to the overall view of the purification station DCS system after clicking; Desludging electrical system, click to enter the desludging electrical system; Mud and water collection system, click to enter the mud and water collection system; Sludge concentration system, click to enter the sludge concentration system; Recycled water system, click to enter the recycled water system; System automatic operation, click to open the system automatic operation interface, manual automatic switching and automatic start and stop are operated in this interface; Curve, click to enter the curve interface, and switch to view the current, liquid level, and centrifuge related curves; Report, click to enter the report interface, where you can query historical data; Alarm, click to enter the alarm interface and view historical alarms.

4. Fault reset: click to reset all faults except device hardware faults.

Images