Corona electrode fault detection method and device, electronic equipment and medium

Abstract

The invention relates to a corona electrode fault detection method and device, electronic equipment and a medium, and belongs to the technical field of fault detection.The method comprises the steps that feature parameter data of feature gas generated by corona electrode discharging are obtained, and feature parameters comprise the type and the concentration; based on the characteristic parameter data, whether the corona electrode has a fracture fault or not is judged; and when the corona electrode has a fracture fault, calculating the fault length of the corona electrode according to the characteristic parameter data. Effective fault detection is carried out on the corona electrode through the characteristic parameters of the characteristic gas generated by discharge of the corona electrode.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical fault detection of electric power equipment, and in particular to a method, device, electronic equipment and medium for detecting a corona electrode fault. Background Art

[0002] The corona electrode is the core component of a large-scale electrostatic precipitator. When a negative voltage is applied to the corona electrode, the metal corona electrode will be negatively charged with high voltage. Since the corona electrode has a metal needle tip, like the spines on the back of a hedgehog, when a high voltage negative charge is applied to the corona electrode, a high voltage negative charge will also be generated on the metal needle tip, and an electric field distortion will be generated at the tip of the needle tip. When the intensity of the electric field distortion exceeds the insulation strength that the air can withstand, the air near the needle tip will be ionized and free electrons will be generated. When the airflow carrying impurity particle pollutants flows near the needle tip where free electrons are generated, the impurity particle pollutants will absorb electrons and become negatively charged, and move toward the metal precipitation plate under the action of the directional electric field formed between the negative polarity electric field of the needle tip electrode and the grounded metal precipitation plate. Eventually, these impurity particle pollutants will be adsorbed on the metal precipitation plate and gradually accumulate, and finally fall into the impurity particle pollutant collection device under the action of gravity.

[0003] In order to improve the collection efficiency of pollutant particles, the current structure between the corona electrode (including hundreds of metal needle tips on the corona electrode) and the metal precipitation plate is a "one-to-one" structure, that is, one corona electrode corresponds to one metal precipitation plate, the metal precipitation plate adopts a cylindrical structure, and the corona electrode is placed in the round center of the metal precipitation plate. This "one-to-one" structure can greatly improve the collection efficiency of pollutant particles, but this "one-to-one" structure brings new problems: the structure causes the corona electrode to bear a greater air flow force with impurities and particles, resulting in an increased probability of the corona electrode breaking. In addition, in order to prevent the corona electrode from swinging left and right in the cylindrical metal precipitation plate, companies generally choose to add ceramic weights under the corona electrode to improve the anti-swinging ability of the corona electrode, but this method of adding weights increases the mechanical load capacity of the corona electrode, and further increases the probability of the corona electrode breaking.

[0004] However, it is difficult to effectively detect the rupture of the corona electrode using the existing technology. Summary of the invention

[0005] In view of this, it is necessary to provide a corona electrode fault detection method, device, electronic equipment and medium to solve the problem in the prior art that it is difficult to effectively detect the fault of corona electrode breakage.

[0006] In order to solve the above problems, the present application provides a corona electrode fault detection method, comprising: Acquiring characteristic parameter data of characteristic gas generated by corona discharge, wherein the characteristic parameters include type and concentration; Based on the characteristic parameter data, determining whether the corona electrode has a fracture fault; When the corona discharge electrode has a fracture fault, the corona discharge electrode fault length is calculated according to the characteristic parameter data.

[0007] In some possible implementations, the characteristic parameter data is acquired through sensor detection, and the type of the sensor is at least one of an electrochemical type, an optical type, and a hybrid type of electrochemical and optical type.

[0008] In some possible implementations, the sensor is disposed in a top region of the dust removal device where the corona electrode is located.

[0009] In some possible implementations, judging whether the corona electrode has a fracture fault based on the characteristic parameter data includes: Determine whether the gas concentrations of all characteristic gases are within the normal fluctuation range of the corresponding type of characteristic gas concentrations; When the gas concentrations of all characteristic gases are within the normal fluctuation range of the corresponding type of characteristic gas concentrations, it is determined that there is no breakage fault in the corona electrode; When the gas concentration of the characteristic gas is lower than the normal fluctuation range of the concentration of the corresponding type of characteristic gas, it is determined that the corona electrode has a fracture fault.

[0010] In some possible implementations, when the corona electrode has a fracture fault, calculating the corona electrode fault length according to the characteristic parameter data includes: When the corona electrode has a fracture fault, the characteristic parameter data is input into a preset fault length prediction model to obtain a predicted value of the corona electrode fault length, and the fault length prediction model is used to express the correlation between the characteristic parameter and the corona electrode fault length.

[0011] In some possible implementations, the fault length prediction model is obtained by performing regression fitting on characteristic parameter data corresponding to corona electrodes of different fault lengths.

[0012] In some possible implementations, the fault length prediction model uses linear fitting or SVM algorithm for regression fitting.

[0013] The present application also provides a corona electrode fault detection device, comprising: A data acquisition unit, used for acquiring characteristic parameter data of characteristic gas generated by corona discharge, wherein the characteristic parameters include type and concentration; A fault judgment unit, used for judging whether there is a fracture fault of the corona electrode based on the characteristic parameter data; The fault length calculation unit is used to calculate the fault length of the corona electrode according to the characteristic parameter data when the corona electrode has a fracture fault.

[0014] The present application also provides an electronic device, including a memory and a processor; The memory is used to store programs; The processor is coupled with the memory and is used for executing the program stored in the memory to implement the steps of the above-mentioned corona electrode fault detection method.

[0015] The present application also provides a computer-readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the above-mentioned corona electrode fault detection method are implemented.

[0016] The beneficial effects of the present application are as follows: the corona electrode fault detection method provided by the present application, based on the "one-to-one" special and unique structure formed by the corona electrode and the metal precipitation plate, the characteristics that the high-voltage end of the corona electrode is its top and the bottom of the vertically placed corona electrode is in a suspended state, and the characteristics that the metal needle tip on the corona electrode will cause the air to decompose and produce trace characteristic gases, realizes effective fault detection of the corona electrode through the characteristic parameters of the characteristic gas generated by the corona electrode discharge, and can calculate the length of the corona electrode fracture fault through analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic side view of the corona electrode and precipitation electrode structure provided in this application; Figure 2 A schematic top view of the corona electrode and precipitation electrode structure provided in this application; Figure 3 Schematic diagram of the gas production principle of the normal working of the corona electrode provided in this application; Figure 4 A schematic diagram of the gas production principle of the corona electrode rupture failure provided in this application; Figure 5 A schematic flow chart of an embodiment of a corona electrode fault detection method provided in the present application; Figure 6 For this application Figure 5 A schematic diagram of an embodiment of step S502; Figure 7 A schematic structural diagram of an embodiment of a corona electrode fault detection device provided in the present application; Figure 8 A schematic diagram of the structure of an embodiment of an electronic device provided in this application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0019] It should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowcharts may be implemented out of order, and steps without logical contextual relationships may be reversed in order or implemented simultaneously. In addition, those skilled in the art may add one or more other operations to the flowcharts, or may remove one or more operations from the flowcharts, under the guidance of the content of this application. Some of the block diagrams shown in the accompanying drawings are functional entities, and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor systems and / or microcontroller systems.

[0020] The descriptions of "first", "second", etc. involved in the embodiments of the present application are only used to describe the implicit purpose, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the technical features defined as "first" and "second" may explicitly or implicitly include at least one of the features. "And / or" describes the association relationship of the associated objects, indicating that three relationships may exist, for example: A and / or B, which can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] For ease of understanding, before explaining the corona electrode fault detection method, the structure and principle of the corona electrode are explained in detail. The side view of the corona electrode and precipitation electrode structure is shown in the figure. Figure 1 As shown, the top view of the corona electrode and precipitation electrode structure is as follows Figure 2 As shown, Figure 1 and Figure 2As shown, the precipitator is a hollow hexagonal metal cylinder, the corona electrode is on the center line of the precipitator, and the corona electrode is provided with a metal needle tip for generating free electrons.

[0023] The schematic diagram of the gas production principle of the normal working of the corona electrode is as follows Figure 3 As shown, the top of the corona electrode is connected to a high voltage and the precipitation electrode is connected to the ground. In normal operation without a break fault, each metal needle tip will cause the gas near the needle tip to decompose during the process of generating free electrons during discharge, producing a fixed type of characteristic gas. These characteristic gases are enclosed in the precipitation electrode and propagate from bottom to top, and the generated gas concentration is linearly positively correlated with the number of metal needle tips.

[0024] Schematic diagram of gas generation principle of corona electrode rupture failure Figure 4 As shown in the figure, when there is a broken fault in the corona electrode, the part of the corona electrode below the break line can no longer be connected to the high voltage, resulting in the corona electrode below the corona electrode no longer discharging, and the gas near it will no longer decompose, resulting in a significant decrease in the concentration of characteristic gas generated by discharge inside the precipitation electrode.

[0025] Based on the special structural features and working characteristics between the above-mentioned corona electrode and the precipitation electrode, the present application provides a corona electrode fault detection method, which is described below respectively.

[0026] Figure 5 A schematic flow chart of an embodiment of the corona electrode fault detection method provided in this application is as follows: Figure 5 As shown, the corona electrode fault detection method includes: S501, acquiring characteristic parameter data of characteristic gas generated by corona discharge, wherein the characteristic parameters include type and concentration; It should be noted that the characteristic gases are ozone (O3), nitrogen dioxide (NO2) and specific corresponding types of gases produced when the dust is discharged from the gas to be removed. The characteristic parameter data is obtained through sensor detection set in the top area of ​​the dust removal device. The sensor type can be an electrochemical type, an optical detection type, or a mixture of the two.

[0027] S502, judging whether the corona electrode has a fracture fault based on the characteristic parameter data; It should be noted that the fracture fault here includes virtual fracture fault.

[0028] S503: When the corona electrode has a fracture fault, the corona electrode fault length is calculated according to the characteristic parameter data.

[0029] Compared with the prior art, the present application realizes effective fault detection of the corona electrode through the characteristic parameters of the characteristic gas generated by the corona electrode discharge, and can calculate the length of the corona electrode fracture fault through analysis, according to the special unique "one-to-one" structure formed by the corona electrode and the metal precipitation plate, the high-voltage end of the corona electrode is the top and the bottom of the vertically placed corona electrode is in a suspended state, and the metal needle tip on the corona electrode causes the gas to be dusted mixed with the air to be decomposed to produce trace characteristic gases.

[0030] In order to better determine whether there is a fracture fault, in some embodiments, such as Figure 6 As shown, step S502 includes: S601, determining whether the gas concentrations of all characteristic gases are within the normal fluctuation range of the concentrations of the corresponding types of characteristic gases; It should be noted that each gas type corresponds to a normal fluctuation range of gas concentration.

[0031] S602, when the gas concentrations of all characteristic gases are within the normal fluctuation range of the concentrations of the corresponding types of characteristic gases, it is determined that there is no fracture fault in the corona electrode; S603: When the gas concentration of the characteristic gas is lower than the normal fluctuation range of the concentration of the corresponding type of characteristic gas, it is determined that the corona electrode has a fracture fault.

[0032] In order to better obtain the corona electrode fault length, in some embodiments, step S503 includes: When there is a fracture fault in the corona electrode, the characteristic parameter data is input into a preset fault length prediction model to obtain a predicted value of the corona electrode fault length. The fault length prediction model is used to express the correlation between the characteristic parameters and the corona electrode fault length.

[0033] In order to obtain a better fault length prediction model, in some embodiments, the fault length prediction model is obtained by performing regression fitting on characteristic parameter data corresponding to corona electrodes of different fault lengths, and the regression fitting specifically adopts methods such as linear fitting or SVM.

[0034] Finally, in the present embodiment, an indoor monitoring host is provided to display the corona electrode working state in real time, and different colors are used to distinguish and display between the corona electrode part of normal operation and the corona electrode part of fracture failure, and different fault severity levels are set according to the corona electrode fault length to carry out early warning in different degrees.

[0035] In order to better implement a corona electrode fault detection method in the embodiment of the present application, based on a corona electrode fault detection method, correspondingly, as Figure 7 As shown, the embodiment of the present application also provides a corona electrode fault detection device 700, comprising: A data acquisition unit 701 is used to acquire characteristic parameter data of characteristic gas generated by corona discharge, wherein the characteristic parameters include type and concentration; A fault judgment unit 702 is used to judge whether there is a break fault of the corona electrode based on the characteristic parameter data; The fault length calculation unit 703 is used to calculate the fault length of the corona electrode according to the characteristic parameter data when there is a fracture fault in the corona electrode.

[0036] The corona electrode fault detection device 700 provided in the above embodiment can implement the technical solution described in the above corona electrode fault detection method embodiment. The principles of the specific implementation of the above units can refer to the corresponding contents in the above corona electrode fault detection method embodiment, which will not be repeated here.

[0037] like Figure 8 As shown, the present application also provides an electronic device 800. The electronic device 800 includes a processor 801, a memory 802 and a display 803. Figure 8 Only some components of the electronic device 800 are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0038] In some embodiments, the memory 802 may be an internal storage unit of the electronic device 800, such as a hard disk or memory of the electronic device 800. In other embodiments, the memory 802 may also be an external storage device of the electronic device 800, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., equipped on the electronic device 800.

[0039] Furthermore, the memory 802 may include both an internal storage unit of the electronic device 800 and an external storage device. The memory 802 is used to store application software installed in the electronic device 800 and various data.

[0040] In some embodiments, the processor 801 may be a central processing unit (CPU), a microprocessor or other data processing chip, which is used to run the program code or process data stored in the memory 802, such as the corona electrode fault detection method in the present application.

[0041] In some embodiments, the display 803 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. The display 803 is used to display information on the electronic device 800 and to display a visual user interface. The components 801-803 of the electronic device 800 communicate with each other via a system bus.

[0042] In some embodiments of the present application, when the processor 801 executes the corona electrode fault detection program in the memory 802, the following steps may be implemented: Acquire characteristic parameter data of characteristic gas generated by corona discharge, the characteristic parameters including type and concentration; Based on the characteristic parameter data, determine whether the corona electrode has a fracture fault; When there is a broken fault in the corona electrode, the fault length of the corona electrode is calculated based on the characteristic parameter data.

[0043] It should be understood that: when the processor 801 executes the corona electrode fault detection program in the memory 802, in addition to the above functions, other functions can also be realized, specifically referring to the description of the above corresponding method embodiment.

[0044] Furthermore, the embodiment of the present application does not specifically limit the type of the electronic device 800 mentioned, and the electronic device 800 may be a portable electronic device such as a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop computer, etc. Exemplary embodiments of portable electronic devices include but are not limited to portable electronic devices equipped with IOS, Android, Microsoft or other operating systems. The above-mentioned portable electronic device may also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the present application, the electronic device 800 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0045] Accordingly, an embodiment of the present application also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, the steps or functions of the corona electrode fault detection method provided by the above-mentioned method embodiments can be implemented.

[0046] Those skilled in the art will appreciate that all or part of the processes of the above-mentioned embodiments can be implemented by instructing related hardware through a computer program, and the above-mentioned program can be stored in a computer-readable storage medium, wherein the computer-readable storage medium is a disk, an optical disk, a read-only storage memory, or a random access memory, etc.

[0047] The above is a detailed introduction to a corona electrode fault detection method provided by the present application. Specific examples are used herein to illustrate the principle and implementation mode of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and the scope of application. In summary, the content of this specification should not be construed as a limitation on the present application.

[0048] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A corona electrode fault detection method, characterized in that, include: Acquiring characteristic parameter data of characteristic gas generated by corona discharge, wherein the characteristic parameters include type and concentration; Based on the characteristic parameter data, determining whether the corona electrode has a fracture fault; When the corona discharge electrode has a fracture fault, the corona discharge electrode fault length is calculated according to the characteristic parameter data.

2. The corona electrode fault detection method according to claim 1, wherein The characteristic parameter data is acquired through sensor detection, and the type of the sensor is at least one of an electrochemical type, an optical type, and a hybrid type of electrochemical and optical type.

3. The corona electrode fault detection method according to claim 2, wherein The sensor is arranged in the top area of ​​the dust removal device where the corona electrode is located.

4. The corona electrode fault detection method according to claim 1, wherein Based on the characteristic parameter data, judging whether the corona electrode has a fracture fault includes: Determine whether the gas concentrations of all characteristic gases are within the normal fluctuation range of the corresponding type of characteristic gas concentrations; When the gas concentrations of all characteristic gases are within the normal fluctuation range of the corresponding type of characteristic gas concentrations, it is determined that there is no breakage fault in the corona electrode; When the gas concentration of the characteristic gas is lower than the normal fluctuation range of the concentration of the corresponding type of characteristic gas, it is determined that the corona electrode has a fracture fault.

5. The corona electrode fault detection method according to claim 1, wherein When the corona electrode has a fracture fault, the corona electrode fault length is calculated according to the characteristic parameter data, including: When the corona electrode has a fracture fault, the characteristic parameter data is input into a preset fault length prediction model to obtain a predicted value of the corona electrode fault length, and the fault length prediction model is used to express the correlation between the characteristic parameter and the corona electrode fault length.

6. The corona electrode fault detection method according to claim 5, wherein The fault length prediction model is obtained by performing regression fitting on characteristic parameter data corresponding to corona electrodes with different fault lengths.

7. The corona electrode fault detection method according to claim 6, wherein The fault length prediction model uses linear fitting or SVM algorithm for regression fitting.

8. A corona electrode fault detection device, characterized in that: include: A data acquisition unit, used for acquiring characteristic parameter data of characteristic gas generated by corona discharge, wherein the characteristic parameters include type and concentration; A fault judgment unit, used for judging whether there is a fracture fault of the corona electrode based on the characteristic parameter data; The fault length calculation unit is used to calculate the fault length of the corona electrode according to the characteristic parameter data when the corona electrode has a fracture fault.

9. An electronic device, characterized in that: including memory and processor; The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps of the corona electrode fault detection method described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the corona electrode fault detection method described in any one of claims 1 to 7 are implemented.

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