System, method, device, processor and storage medium for implementing pulse dust removal control based on weighted mechanism

Abstract

The present invention relates to a system for implementing pulse dust removal control based on a weighted mechanism, the system has K pulse valves, the system includes M sub-chambers, each sub-chamber has N pulse valves, each sub-chamber has a weighted module, one end of the N pulse valves in each sub-chamber is connected together, and all are connected to the weighted modules in the sub-chamber; the system also includes A output modules, and the A output modules satisfy the following condition: A=N+M. The present invention also relates to a method, device, processor and storage medium for implementing pulse dust removal control based on a weighted mechanism. The system, method, device, processor and storage medium for implementing pulse dust removal control based on a weighted mechanism of the present invention are adopted, which reduces the number of PLC output points and the number of relays, reduces the compilation of programs, and reduces the investment in automatic control systems. In addition, due to the large reduction in output points, output redundancy becomes possible. Design maintenance and care become faster, and it is convenient to change process parameters.

Description

Technical Field

[0001] The present invention relates to the field of cement smelting, and in particular to the field of pulse dust removal, and specifically refers to a system, method, device, processor and storage medium for realizing pulse dust removal control based on a weighted mechanism. Background Art

[0002] As the mainstream of air purification, pulse dust removal plays a very important role in smelting, cement and other industries. A dust removal equipment requires hundreds or thousands of pulse valves to complete the entire process.

[0003] The one-to-one output mode of the pulse valve results in the large number of PLC output points and intermediate relays, which is very inconvenient for electrical engineers to design, maintain and operate. The PLC program is too large. The investment cost of the automatic control system is high. It is cumbersome to temporarily change the process parameters, and redundancy is difficult to achieve due to the number of points. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a system, method, device, processor and storage medium for realizing pulse dust removal control based on a weighted mechanism, which is easy to operate, convenient to maintain and has a wide range of applications.

[0005] In order to achieve the above-mentioned purpose, the system, method, device, processor and storage medium for implementing pulse dust removal control based on a weighted mechanism of the present invention are as follows:

[0006] The main feature of the system for realizing pulse dust removal control based on a weighted mechanism is that the system has K pulse valves, the system includes M sub-chambers, each of which has N pulse valves, each of which has a weighted module, and one end of the N pulse valves in each sub-chamber is connected together and connected to the weighted module in the sub-chamber;

[0007] The system further includes A output modules, and the A output modules meet the following conditions:

[0008] A=N+M.

[0009] Preferably, the system further comprises A relays, the weighting module of each output module is connected to a corresponding relay, and the relay is an intermediate relay.

[0010] Preferably, the M output modules among the A output modules are respectively connected to M weighting modules to transmit corresponding weighted signals. When the system addresses a certain weighting module, the N pulse valves in the corresponding chamber of the weighting module are respectively connected to the remaining N output modules.

[0011] Preferably, each weighting module includes a switch to control the on or off of each chamber.

[0012] Preferably, the system further comprises a redundant subsystem, the redundant subsystem comprises a backup output module and a backup weighting module, and the backup weighting module is connected to the backup output module.

[0013] The method for realizing pulse dust removal control based on the system described in claim 1 is mainly characterized in that the method comprises the following steps:

[0014] (1) Addressing the weighted signal, finding the chamber corresponding to the pulse valve to be controlled, and controlling the chamber to be electrically conductive;

[0015] (2) Turn on the corresponding pulse valve in the chamber and control the pulse valve.

[0016] Preferably, the step (1) specifically comprises the following steps:

[0017] (1) Addressing the weighted signal to find the chamber corresponding to the pulse valve to be controlled;

[0018] (2) Control the relays and switches corresponding to the sub-chambers to make the sub-chambers electrically connected.

[0019] The device for realizing pulse dust removal control has the following main features:

[0020] a processor configured to execute computer-executable instructions;

[0021] The memory stores one or more computer executable instructions. When the computer executable instructions are executed by the processor, the various steps of the method for realizing pulse dust removal control are implemented.

[0022] The main feature of the processor for implementing pulse dust removal control is that the processor is configured to execute computer executable instructions, and when the computer executable instructions are executed by the processor, the various steps of the above-mentioned method for implementing pulse dust removal control are implemented.

[0023] The main feature of the computer-readable storage medium is that a computer program is stored thereon, and the computer program can be executed by a processor to implement the various steps of the above-mentioned method for realizing pulse dust removal control.

[0024] The system, method, device, processor and storage medium for implementing pulse dust removal control based on a weighted mechanism of the present invention are adopted, which reduces the number of PLC output points and the number of relays, reduces the compilation of programs, and reduces the investment in the automatic control system. In addition, due to the large reduction in output points, output redundancy becomes possible, making design maintenance and care faster and convenient to change process parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A top view of a pulse valve of a dust removal device in a system for realizing pulse dust removal control based on a weighted mechanism according to the present invention.

[0026] Figure 2 The diagram is a circuit connection diagram of a system for realizing pulse dust removal control based on a weighted mechanism according to the present invention.

[0027] Figure 3 The diagram is a circuit connection diagram of each sub-chamber of the system for realizing pulse dust removal control based on a weighted mechanism of the present invention.

[0028] Figure 4 The diagram is a circuit connection diagram of the redundant subsystem of the system for realizing pulse dust removal control based on a weighted mechanism of the present invention.

[0029] Figure 5 The diagram is a circuit connection diagram of the redundant subsystem of the system for realizing pulse dust removal control based on a weighted mechanism of the present invention. DETAILED DESCRIPTION

[0030] In order to more clearly describe the technical content of the present invention, further description is given below in conjunction with specific embodiments.

[0031] The system, method, device, processor and storage medium for implementing pulse dust removal control based on a weighted mechanism of the present invention have K pulse valves, the system includes M sub-chambers, each of which has N pulse valves, each of which has a weighted module, one end of the N pulse valves in each sub-chamber is connected together and connected to the weighted module in the sub-chamber;

[0032] The system further includes A output modules, and the A output modules meet the following conditions:

[0033] A=N+M.

[0034] As a preferred embodiment of the present invention, the system further includes A relays, the weighting module of each output module is connected to a corresponding relay, and the relay is an intermediate relay.

[0035] As a preferred embodiment of the present invention, the M output modules among the A output modules are respectively connected to the M weighting modules to transmit corresponding weighted signals. When the system addresses a certain weighting module, the N pulse valves in the corresponding chamber of the weighting module are respectively connected to the remaining N output modules.

[0036] As a preferred embodiment of the present invention, each weighting module includes a switch to control the on or off of each chamber.

[0037] As a preferred embodiment of the present invention, the system further comprises a redundant subsystem, wherein the redundant subsystem comprises a backup output module and a backup weighting module, and the backup weighting module is connected to the backup output module.

[0038] The method for realizing pulse dust removal control based on the system described in claim 1 of the present invention is mainly characterized in that the method comprises the following steps:

[0039] (1) Addressing the weighted signal, finding the chamber corresponding to the pulse valve to be controlled, and controlling the chamber to be electrically conductive;

[0040] (2) Turn on the corresponding pulse valve in the chamber and control the pulse valve.

[0041] As a preferred embodiment of the present invention, the step (1) specifically comprises the following steps:

[0042] (1) Addressing the weighted signal to find the chamber corresponding to the pulse valve to be controlled;

[0043] (2) Control the relays and switches corresponding to the sub-chambers to make the sub-chambers electrically connected.

[0044] The device for realizing pulse dust removal control of the present invention, wherein the device comprises:

[0045] a processor configured to execute computer executable instructions;

[0046] The memory stores one or more computer executable instructions. When the computer executable instructions are executed by the processor, the various steps of the method for realizing pulse dust removal control are implemented.

[0047] The processor for implementing pulse dust removal control of the present invention, wherein the processor is configured to execute computer executable instructions, and when the computer executable instructions are executed by the processor, the various steps of the above-mentioned method for implementing pulse dust removal control are implemented.

[0048] The computer-readable storage medium of the present invention stores a computer program thereon, and the computer program can be executed by a processor to implement the various steps of the above-mentioned method for realizing pulse dust removal control.

[0049] In the specific implementation of the present invention, in view of the fact that the pulse dust removal equipment does not output simultaneously, but outputs gradually, a fixed output superposition weighting method can be adopted to achieve control. The PLC listed in this technical solution is not limited to PLC. It can also be other control devices, such as DCS, CCS, pulse controller and relay stacking, etc. The patent protection for other equipment controlled by this method is not limited to dust removal pulse equipment.

[0050] The conversion formula for the output hardware quantity of the present invention is A=N+M, where A is the actual valve demand bit number, N is the group expansion bit, and M is the weighted number (which can also be understood as grouping). It is much better than the prior art where the demand bit is not used, A=N×M. The larger the weighted number in the two sets of formulas, the higher the utilization rate of the PLC demand output bit. The number of output bits and intermediate relays is greatly compressed. Figure 1 The diagram is a grouping diagram of 100 pulse valves, showing the grouping by chamber. The gas inlet and outlet are divided into two layers of channels, the lower channel inlet and the upper channel outlet, both connected to each chamber, and their routing is irrelevant to this patent, so it is not illustrated.

[0051] Connect one end of all pulse valves to each output point. In this case, when a certain output bit is activated, the potential of this output bit will be transferred to multiple pulse valves. This is completely different from the usual one output to one pulse valve.

[0052] According to the principle of grouping, the other ends of the pulse valves of the corresponding group are connected together, and the weighted signal is inserted. The original control method does not have a weighted signal. The weighted signal refers to providing a group of signals that can be intervened, and it is realized by controlling the common bus of this group of signals.

[0053] Control section pulse valve addressing (specify pulse valve):

[0054] When any pulse valve is actuated, the pulse valve group is first found, that is, the group controlled by the weighted signal. Then the solenoid valve is output. The response speed is the same as the original one-to-one output.

[0055] like Figure 1The figure shows a top view of the pulse valve of the dust removal equipment. The characteristic pulse valves of the dust removal equipment are usually processed one by one. In the embodiment of this device, if the number of pulse valves is 100, according to the one-to-one output, its output points and relay configurations need 100. If the overlap method of this technical solution is adopted, they are subdivided into 10 sections, each section has 10 pulse valves (10 positions, the sections and positions can be adjusted according to actual conditions). The electrical hardware part is as follows Figure 2 and Figure 3 In the actual connection mode, only 20 output points and relays need to be configured. Figure 2 Describes each drive signal and weighted signal output from the PLC, Figure 3 The contacts of the relay used for PLC drive and weighted signal are described to drive the solenoid valve. In this figure, the wiring method of each solenoid valve is described in detail, that is, one end of the solenoid valve is interconnected with the drive signal (one side of the K1~K10 node), and the other end is all aggregated to the weighted signal (i.e. Figure 3 N nodes in ).

[0056] For example, if the first pulse valve of the first segment needs to be activated, first address the first segment weighted signal Q1.2 to make it electrically conductive, and then turn on Q0.0. At this time, the first pulse valve of the first segment forms a loop through Q0.0 and Q1.2, and the solenoid valve starts to act. The pulse valves at Q0.0 of other segments have no output because the weighted signal has not arrived. That is, the pulse valve of the segment that needs to be activated can be activated by acting on the weighted signal and bit.

[0057] For the output relay, consider using an intermediate relay with a larger capacity to adapt to the high-load action of multi-stage solenoid valve operation, such as multi-position output.

[0058] In a specific embodiment of the present invention, a dust removal pulse valve is divided into 12 chambers (weighted number), each chamber has 48 pulse valves (extended position), a total of 576 pulse valves (requires S7 1500 or higher medium-sized PLC). The use of this technical solution only requires the actual output points of the PLC to be A=N+M=48+12=60, which reduces the number of intermediate relays and PLC output points by 516 compared with conventional one-to-one output.

[0059] According to this pulse valve order, a small S7 1200 (with about 284 output points) PLC can fully meet the needs.

[0060] This system also has a redundant subsystem, the action mechanism of which is the same as above, except that it acts as a backup when the main control fails. Figure 4 and Figure 5As shown, the output module of the redundant subsystem is A14, the corresponding output relays are -K101~110, and the weighted signal relays are -K111~120. The working principle of the redundant subsystem is the same as the above-mentioned relays, pulse valves, chambers, weighted modules, output modules, etc.

[0061] The specific implementation scheme of this embodiment can refer to the relevant description in the above embodiment, which will not be repeated here.

[0062] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0063] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0064] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0065] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0066] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the corresponding program may be stored in a computer-readable storage medium, which, when executed, includes one of the steps of the method embodiment or a combination thereof.

[0067] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0068] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0070] The system, method, device, processor and storage medium for implementing pulse dust removal control based on a weighted mechanism of the present invention are adopted, which reduces the number of PLC output points and the number of relays, reduces the compilation of programs, and reduces the investment in the automatic control system. In addition, due to the large reduction in output points, output redundancy becomes possible, making design maintenance and care faster and convenient to change process parameters.

[0071] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it is apparent that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A system for realizing pulse dust removal control based on a weighted mechanism, characterized in that: The system has K pulse valves, the system includes M sub-chambers, each of which has N pulse valves, each of which has a weighting module, and one end of the N pulse valves in each sub-chamber is connected together and connected to the weighting module in the sub-chamber; The system further includes A output modules, and the A output modules meet the following conditions: A=N+M; The system further comprises A relays, the weighting module of each output module is connected to a corresponding relay, and the relay is an intermediate relay; The M output modules among the A output modules are respectively connected to the M weighting modules to transmit corresponding weighted signals. When the system addresses a certain weighting module, the N pulse valves in the corresponding chamber of the weighting module are respectively connected to the remaining N output modules.

2. The system for realizing pulse dust removal control based on weighted mechanism according to claim 1, characterized in that: Each of the weighting modules includes a switch to control the on or off of each chamber.

3. The system for implementing pulse dust removal control based on a weighted mechanism according to claim 1, characterized in that: The system further comprises a redundant subsystem, which comprises a spare output module and a spare weighting module, and the spare weighting module is connected to the spare output module.

4. A method for implementing pulse dust removal control based on the system of claim 1, characterized in that: The method comprises the following steps: (1) Addressing the weighted signal, finding the chamber corresponding to the pulse valve to be controlled, and controlling the chamber to be electrically conductive; (2) Turn on the corresponding pulse valve in the chamber and control the pulse valve.

5. The method for realizing pulse dust removal control according to claim 4, characterized in that: The step (1) specifically comprises the following steps: (1) Addressing the weighted signal to find the chamber corresponding to the pulse valve to be controlled; (2) Control the relays and switches corresponding to the sub-chambers to make the sub-chambers electrically connected.

6. A device for realizing pulse dust removal control, characterized in that: The device comprises: a processor configured to execute computer-executable instructions; A memory stores one or more computer executable instructions, and when the computer executable instructions are executed by the processor, the various steps of the method for realizing pulse dust removal control described in any one of claims 4 to 5 are implemented.

7. A processor for implementing pulse dust removal control, characterized in that: The processor is configured to execute computer executable instructions. When the computer executable instructions are executed by the processor, the various steps of the method for realizing pulse dust removal control described in any one of claims 4 to 5 are implemented.

8. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and the computer program can be executed by a processor to implement the various steps of the method for realizing pulse dust removal control as described in any one of claims 4 to 5.

Images