Remote emergency shutdown device of centralized control center in front of railway based on industrial communication network

Abstract

The invention discloses a remote emergency shutdown device of a pre-railway centralized control center based on an industrial communication network, which is safe and reliable, is independent of each process control system, and comprises an emergency operation signal operation module arranged on an operation table of a pre-railway centralized control hall, and an emergency operation signal processing module arranged in a centralized control center machine room, the plurality of emergency operation signal input and output modules are installed in electrical rooms of all working procedure sites, and the plurality of emergency operation signal execution modules are installed in electrical control loops of all devices; the emergency operation signal operation module is electrically connected with the emergency operation signal processing module through an industrial communication network or a redundant dry node cable; the emergency operation signal processing module is electrically connected with the plurality of emergency operation signal input and output modules through an industrial communication network; the emergency operation signal input and output module is connected with the emergency operation signal execution module through a cable; and the emergency operation signal execution module is electrically connected with field equipment through a cable.

Description

Technical Field

[0001] This application relates to the field of centralized control technology, and particularly to a remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network. Background Art

[0002] In the production process of the ironmaking front-end area, it includes production processes such as raw material yard, sintering, pelletizing, coking, and blast furnace ironmaking. These processes have characteristics such as long production process flow, complex systems, decentralized control and management of each process, and harsh operating environments, resulting in management bottlenecks that are difficult to penetrate longitudinally and communicate horizontally during the production process in the ironmaking front-end area. The ironmaking front-end centralized control technology relies on advanced industrial Internet technology, with blast furnace production as the center, breaks the traditional factory-level and operation area concepts in the ironmaking front-end, comprehensively integrates the management and operation of each process in the ironmaking front-end, and achieves the purpose of improving professional control capabilities and production coordination among processes, providing a powerful starting point for steel enterprises to achieve lean production and intelligent control.

[0003] However, during the process of centralized integration of each process control system, since the centralized control center is far from each low-voltage power distribution room, the emergency shutdown operation of important equipment cannot be achieved in a way that the emergency operation console box is directly connected to the electrical circuit control equipment through cables and is independent of the process control system. Moreover, the designs of most process control systems in terms of power supply, communication, redundancy switching, etc. are not perfect, and the reliability is not high. Once the control system fails, operators cannot perform reliable operations on important equipment in the centralized control center far from the site in a timely manner, and production safety accidents are extremely likely to occur. Summary of the Invention

[0004] Therefore, this application provides a remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network to solve the problem that the emergency shutdown operation of important equipment in the prior art cannot be achieved in a way independent of the process control system.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] In a first aspect, a remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network, the remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network is independent of each process control system, and includes: an emergency operation signal operation module, an emergency operation signal processing module, a plurality of emergency operation signal input / output modules, and a plurality of emergency operation signal execution modules;

[0007] The emergency operation signal operation module is installed on the operation console in the ironmaking front-end centralized control hall, the emergency operation signal processing module is installed in the centralized control center computer room, a plurality of the emergency operation signal input / output modules are installed in the electrical rooms at the site of each process, and a plurality of the emergency operation signal execution modules are installed in the electrical control circuits of each device;

[0008] The emergency operation signal operation module is electrically connected to the emergency operation signal processing module through an industrial communication network or a redundant dry contact cable; the emergency operation signal processing module is electrically connected to multiple emergency operation signal input / output modules through an industrial communication network; multiple emergency operation signal input / output modules are connected to multiple emergency operation signal execution modules through cables; multiple emergency operation signal execution modules are electrically connected to field devices through cables.

[0009] Preferably, the emergency operation signal processing module includes a first power supply redundancy module, a CPU redundancy module, a first communication redundancy module, and a first IO redundancy module. The first power supply redundancy module, the first communication redundancy module, and the first IO redundancy module are all electrically connected to the CPU redundancy module. The first communication redundancy module communicates with the emergency operation signal operation module and multiple emergency operation signal input / output modules through an industrial communication network. The first IO redundancy module is electrically connected to the emergency operation signal operation module and multiple emergency operation signal input / output modules.

[0010] Preferably, the emergency operation signal input / output module includes a second power supply redundancy module, a second communication redundancy module, and a second IO redundancy module. The second communication redundancy module and the second IO redundancy module are both electrically connected to the second power supply redundancy module. The second communication redundancy module communicates with the emergency operation signal processing module through an industrial communication network. The second IO redundancy module is electrically connected to the emergency operation signal processing module and the emergency operation signal execution module.

[0011] Preferably, the number of emergency operation signal input / output modules is the same as that of the emergency operation signal execution modules.

[0012] In a second aspect, a method for remotely emergency shutdown of an ironmaking front-end centralized control center based on an industrial communication network is provided. The method is applied to the remotely emergency shutdown device of the ironmaking front-end centralized control center based on the industrial communication network, and includes:

[0013] The emergency operation signal operation module is configured to receive an emergency operation signal and send it to the emergency operation signal processing module;

[0014] After receiving the emergency operation signal, the emergency operation signal processing module determines the devices that require emergency operation and sends a signal instruction to the corresponding emergency operation signal input / output module;

[0015] After receiving the signal instruction, the emergency operation signal input / output module sends the signal instruction to the emergency operation signal execution module in the form of a normally closed point;

[0016] The emergency operation signal execution module receives the closed point instruction number, controls the power-on of the equipment loop, the contactor closes, the main loop of the equipment is powered on, and the important on-site equipment starts emergency operation.

[0017] Preferably, it further includes:

[0018] The emergency operation signal execution module detects the action status signal after the emergency operation of the important on-site equipment and sends it to the emergency operation signal input / output module;

[0019] After receiving the action status signal, the emergency operation signal input / output module forwards it to the emergency operation signal processing module;

[0020] After receiving the action status signal, the emergency operation signal processing module sends it to the human-machine interface of the ironmaking front-end centralized control center for display through the emergency operation signal operation module, and controls the indicator light on the operation console of the ironmaking front-end centralized control center to turn on.

[0021] Preferably, the action status signal includes switch in place, running, and fault.

[0022] Preferably, the emergency operation signal is sent through the emergency stop system HMI or the emergency stop button on the operation console.

[0023] Compared with the prior art, the present application has at least the following beneficial effects:

[0024] The present application provides a remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network. This device is independent of the control systems of each process and includes: an emergency operation signal operation module, an emergency operation signal processing module, multiple emergency operation signal input / output modules, and multiple emergency operation signal execution modules; the emergency operation signal operation module is installed on the operation console in the ironmaking front-end centralized control hall, the emergency operation signal processing module is installed in the centralized control center computer room, multiple emergency operation signal input / output modules are installed in the electrical rooms at the site of each process, and multiple emergency operation signal execution modules are installed in the electrical control circuits of each device; the emergency operation signal operation module is electrically connected to the emergency operation signal processing module through an industrial communication network or a redundant dry node cable; the emergency operation signal processing module is electrically connected to multiple emergency operation signal input / output modules through an industrial communication network; multiple emergency operation signal input / output modules are connected to multiple emergency operation signal execution modules through cables; multiple emergency operation signal execution modules are electrically connected to on-site equipment through cables. The remote emergency shutdown device for the ironmaking front-end centralized control center provided by the present application is independent of the control systems of each process, is not only safe and reliable, but also not affected by the failures of the original control system and network. Description of the Drawings

[0025] To more intuitively illustrate the prior art and this application, exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing this application; for example, those skilled in the art are capable of making routine adjustments or further optimizations to the addition / removal / attribution division of certain units (components), specific shapes, positional relationships, connection methods, dimensional ratio relationships, etc. based on the technical concepts disclosed in this application and the exemplary drawings.

[0026] Figure 1 FIG. is a schematic structural diagram of a remote emergency shutdown device for an ironmaking front-end centralized control center based on an industrial communication network provided in the first embodiment of this application;

[0027] Figure 2 FIG. is a schematic flowchart of an emergency operation signal execution method provided in the second embodiment of this application;

[0028] Figure 3 FIG. is a schematic flowchart of an emergency operation signal feedback method provided in the second embodiment of this application.

[0029] Description of reference numerals:

[0030] 1. Emergency operation signal operation module; 2. Emergency operation signal processing module; 3. Emergency operation signal input / output module; 4. Emergency operation signal execution module. Detailed implementation manners

[0031] The following further details this application through specific embodiments in conjunction with the drawings.

[0032] In the description of this application: Unless otherwise specified, "a plurality of" means two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects being referred to, and do not have special significance in terms of technical connotations (for example, it should not be understood as emphasizing the importance level or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0033] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this application are generally indications of the general relative positional relationship for the convenience of intuitively understanding with reference to the drawings, and are not absolute limitations on the positional relationship in the actual product.

[0034] Embodiment 1

[0035] Please refer to Figure 1, this embodiment provides a remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network. This remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network is independent of each process control system and includes: an emergency operation signal operation module 1, an emergency operation signal processing module 2, multiple emergency operation signal input / output modules 3, and multiple emergency operation signal execution modules 4.

[0036] The emergency operation signal operation module 1 is installed on the operation console in the ironmaking front-end centralized control hall, the emergency operation signal processing module 2 is installed in the computer room of the centralized control center, multiple emergency operation signal input / output modules 3 are installed in the electrical rooms at the site of each process, and multiple emergency operation signal execution modules 4 are installed in the electrical control circuits of each device.

[0037] The emergency operation signal operation module 1 is electrically connected to the emergency operation signal processing module 2 through an industrial communication network or a redundant dry contact cable; the emergency operation signal processing module 2 is electrically connected to multiple emergency operation signal input / output modules 3 through an industrial communication network; multiple emergency operation signal input / output modules 3 are connected to multiple emergency operation signal execution modules 4 through cables; multiple emergency operation signal execution modules 4 are electrically connected to on-site devices through cables.

[0038] Specifically, the emergency operation signal processing module 2 is composed of a PLC master station including a first power supply redundancy module, a CPU redundancy module, a first communication redundancy module, and a first IO redundancy module. The first power supply redundancy module, the first communication redundancy module, and the first IO redundancy module are all electrically connected to the CPU redundancy module. The first communication redundancy module communicates with the emergency operation signal operation module 1 and multiple emergency operation signal input / output modules 3 through an industrial communication network, and the first IO redundancy module is electrically connected to the emergency operation signal operation module 1 and multiple emergency operation signal input / output modules 3.

[0039] Specifically, the emergency operation signal input / output module 3 is composed of a PLC slave station including a second power supply redundancy module, a second communication redundancy module, and a second IO redundancy module. The second communication redundancy module and the second IO redundancy module are both electrically connected to the second power supply redundancy module. The second communication redundancy module communicates with the emergency operation signal processing module 2 through an industrial communication network, and the second IO redundancy module is electrically connected to the emergency operation signal processing module 2 and the emergency operation signal execution module 4.

[0040] Specifically, the number of emergency operation signal input / output modules 3 is the same as that of the emergency operation signal execution modules 4.

[0041] An independent remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network provided in this embodiment is independent of the original control systems and networks of each ironmaking front-end process and is not affected by the failures of the original control systems and networks; moreover, based on industrial communication network devices and protocols, it has strong communication security and anti-interference capabilities and fast signal transmission speeds; by using control system devices with power supply redundancy, communication redundancy, and IO module redundancy, it has high reliability, and even if a certain path of equipment or cable fails, the system can still continue to operate and perform emergency shutdown operations.

[0042] Embodiment 2

[0043] This embodiment provides a remote emergency shutdown method for the ironmaking front-end centralized control center based on an industrial communication network. This method is applied to the remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network provided in Embodiment 1, and it includes an emergency operation signal execution method and an emergency operation signal feedback method.

[0044] Please refer to Figure 2 , the emergency operation signal execution method includes:

[0045] The emergency operation signal operation module 1 is used to receive the emergency operation signal and send it to the emergency operation signal processing module 2.

[0046] Specifically, in case of an emergency, the operator issues an emergency operation signal through the emergency stop system HMI or the emergency stop button on the console, and sends the emergency operation signal to the emergency operation signal processing module 2 in the way of connecting through an industrial communication network or a redundant dry node cable.

[0047] After receiving the emergency operation signal, the emergency operation signal processing module 2 determines the equipment that needs emergency operation and sends a signal instruction to the corresponding emergency operation signal input / output module 3.

[0048] Specifically, after receiving the emergency stop instruction sent by the emergency operation signal operation module 1, the emergency operation signal processing module 2 determines which equipment needs emergency operation through the program and sends it to the corresponding emergency operation signal input / output module 3 through the industrial communication network.

[0049] After receiving the signal instruction, the emergency operation signal input / output module 3 sends the signal instruction to the emergency operation signal execution module 4 in the form of a closed point.

[0050] Specifically, after receiving the signal instruction from the emergency operation signal processing module 2, the redundant output node of the slave station sends the signal instruction to the emergency operation signal execution module 4 in the form of a closed point (normally open point in the normal state) through the control cable.

[0051] The emergency operation signal execution module 4 receives the closed point instruction number, controls the power-on of the equipment loop, the contactor closes, the main loop of the equipment is powered on, and the important on-site equipment starts emergency actions.

[0052] Specifically, after the emergency operation signal execution module 4 receives the closed point instruction issued by the emergency operation signal input / output module 3, the equipment control loop is powered on, the contactor closes, the main loop of the equipment is powered on, and the important on-site equipment starts emergency actions.

[0053] Please refer to Figure 3 , the emergency operation signal feedback method includes:

[0054] The emergency operation signal execution module 4 detects the action status signal after the important on-site equipment performs emergency actions and sends it to the emergency operation signal input / output module 3.

[0055] Specifically, after the important on-site equipment performs emergency actions, the action status signal (switch in place, running, faulty, etc.) is sent by the emergency operation signal execution module 4 to the emergency operation signal input / output module 3 in the form of a closed point (normally open point in normal state) through the control cable.

[0056] After receiving the action status signal, the emergency operation signal input / output module 3 forwards it to the emergency operation signal processing module 2.

[0057] Specifically, after receiving the equipment action status signal, the emergency operation signal input / output module 3 sends it to the emergency operation signal processing module 2 through the industrial communication network.

[0058] After receiving the action status signal, the emergency operation signal processing module 2 sends it to the human-machine interface of the BF front-end centralized control center for display through the emergency operation signal operation module 1 and controls the indicator light on the console of the BF front-end centralized control center to light up.

[0059] Specifically, after receiving the equipment action status signal sent by the emergency operation signal input / output module 3, the emergency operation signal processing module 2 sends it to the HMI screen of the BF front-end centralized control center through the industrial communication network and sends it to the indicator light on the console of the BF front-end centralized control center through cable connection to inform the operator of the centralized control center of the real-time action status of the on-site equipment.

[0060] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written out should also be considered to be within the scope described in this specification.

Claims

1. A remote emergency shutdown device for the ironmaking front-end centralized control center based on an industrial communication network, characterized in that, The remote emergency shutdown device for the ironmaking front-end centralized control center based on the industrial communication network is independent of the control systems of each process, and includes: an emergency operation signal operation module, an emergency operation signal processing module, a plurality of emergency operation signal input / output modules, and a plurality of emergency operation signal execution modules; The emergency operation signal operation module is installed on the operation console in the ironmaking front-end centralized control hall, the emergency operation signal processing module is installed in the computer room of the centralized control center, a plurality of the emergency operation signal input / output modules are installed in the electrical rooms at the sites of each process, and a plurality of the emergency operation signal execution modules are installed in the electrical control circuits of each device; The emergency operation signal operation module is electrically connected to the emergency operation signal processing module through an industrial communication network or a redundant dry node cable; the emergency operation signal processing module is electrically connected to a plurality of the emergency operation signal input / output modules through an industrial communication network; a plurality of the emergency operation signal input / output modules are connected to a plurality of the emergency operation signal execution modules through cables; a plurality of the emergency operation signal execution modules are electrically connected to on-site devices through cables.

2. The remote emergency shutdown device for the ironmaking front-end centralized control center based on the industrial communication network according to claim 1, wherein The emergency operation signal processing module includes a first power supply redundancy module, a CPU redundancy module, a first communication redundancy module, and a first IO redundancy module. The first power supply redundancy module, the first communication redundancy module, and the first IO redundancy module are all electrically connected to the CPU redundancy module. The first communication redundancy module is communicatively connected to the emergency operation signal operation module and a plurality of the emergency operation signal input / output modules through an industrial communication network. The first IO redundancy module is electrically connected to the emergency operation signal operation module and a plurality of the emergency operation signal input / output modules.

3. The remote emergency shutdown device for the blast furnace front integrated control center based on the industrial communication network according to claim 1, characterized in that The emergency operation signal input / output module includes a second power supply redundancy module, a second communication redundancy module, and a second IO redundancy module. The second communication redundancy module and the second IO redundancy module are both electrically connected to the second power supply redundancy module. The second communication redundancy module is communicatively connected to the emergency operation signal processing module through an industrial communication network. The second IO redundancy module is electrically connected to the emergency operation signal processing module and the emergency operation signal execution module.

4. The remote emergency shutdown device for the blast furnace front-end centralized control center based on the industrial communication network according to claim 1, wherein, The number of the emergency operation signal input / output modules is the same as that of the emergency operation signal execution modules.

5. A remote emergency shutdown method for the ironmaking front-end centralized control center based on an industrial communication network, characterized in that, The method is applied to the remote emergency shutdown device for the ironmaking front-end centralized control center based on the industrial communication network according to any one of claims 1-4, and includes: The emergency operation signal operation module is used to receive an emergency operation signal and send it to the emergency operation signal processing module; After receiving the emergency operation signal, the emergency operation signal processing module determines the device that needs emergency operation and sends a signal instruction to the corresponding emergency operation signal input / output module; After receiving the signal instruction, the emergency operation signal input / output module sends the signal instruction to the emergency operation signal execution module in the form of a closed point; After receiving the closed point instruction number, the emergency operation signal execution module controls the device loop to be powered on, the contactor to be closed, the main loop of the device to be powered on, and the important on-site device to start an emergency action.

6. The remote emergency shutdown method for the ironmaking front-end centralized control center based on the industrial communication network according to claim 5, wherein It further includes: The emergency operation signal execution module detects the action status signal after the emergency action of important on-site equipment and sends it to the emergency operation signal input / output module; After receiving the action status signal, the emergency operation signal input / output module forwards it to the emergency operation signal processing module; After receiving the action status signal, the emergency operation signal processing module sends it to the human-machine interface of the ironmaking front centralized control center for display through the emergency operation signal operation module, and controls the operation console indicator light of the ironmaking front centralized control center to turn on.

7. The remote emergency shutdown method for the ironmaking front-end centralized control center based on the industrial communication network according to claim 6, wherein The action status signal includes switch in place, running, and fault.

8. The remote emergency shutdown method of the blast furnace front integrated control center based on the industrial communication network according to claim 5, characterized in that, The emergency operation signal is sent through the emergency stop system HMI or the emergency stop button on the operation console.

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