A method for controlling rapping of an electrostatic precipitator, an electronic device, and a system

Abstract

Embodiments of the present disclosure provide a method, an electronic device and a system for rapping control of an electrostatic precipitator, and belong to the technical field of flue gas purification control. The method comprises: acquiring real-time working condition parameters of the electrostatic precipitator; determining time configuration parameters corresponding to each of a plurality of rapping execution units based on the real-time working condition parameters; in response to a target rapping execution unit satisfying a starting condition, controlling the target rapping execution unit to perform a rapping action and controlling other rapping execution units within an interlocking range to enter a waiting state; and in response to a current operation cycle of the target rapping execution unit ending, controlling the other rapping execution units in the waiting state to be started in turn according to respective starting time sequence offsets. Embodiments of the present disclosure achieve dynamic adaptive reconstruction of rapping parameters and anti-collision serial scheduling of multiple execution units, effectively avoiding secondary dust raising and reducing energy consumption.

Description

Technical Field

[0001] The embodiments disclosed herein belong to the field of flue gas purification and control technology, specifically relating to a rapping control method, electronic equipment, and system for an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators are core equipment in downstream flue gas purification systems for coal-fired boilers. Their core principle involves using a high-voltage electric field to charge solid particles in the flue gas, causing them to adhere to the collecting electrodes. A rapping device then periodically strikes the electrodes / wires, causing the ash layer to detach and fall into the ash hopper, thus achieving efficient dust removal. The operating logic of the rapping device directly determines the dust removal efficiency, equipment lifespan, and energy consumption level.

[0003] Current mainstream electrostatic precipitator rapping systems have the following inherent defects: 1. Fixed rapping cycle, unable to adapt to load changes: Traditional systems mostly use manually set fixed rapping cycles, which cannot be dynamically adjusted according to the unit load, inlet dust concentration, ash layer thickness and other operating conditions. Insufficient rapping at high loads leads to dust accumulation on the plates and a decrease in dust removal efficiency, while excessive rapping at low loads causes secondary dust and energy waste, which completely fails to meet the energy-saving requirements of deep peak shaving of the unit.

[0004] 2. Overlapping rapping timings cause secondary dust generation: The rapping operation times of the same or adjacent electric fields are prone to overlap. The simultaneous action of multiple rapping sets will cause the plates / wires to vibrate violently. A large amount of dust that has not settled sufficiently will be carried away by the flue gas, forming serious secondary dust generation, which will significantly reduce the dust removal efficiency and aggravate the mechanical wear of the equipment.

[0005] 3. Rigid control logic and insufficient operational flexibility: Traditional systems can only set fixed run / stop times, lacking flexible start time offset and timing interlock functions, making it impossible to achieve fine-grained control of rapping timing; in addition, they lack convenient operation functions such as partition start / stop and one-click start / stop, making it impossible for operation and maintenance personnel to quickly adjust according to on-site working conditions, resulting in low efficiency in emergency response. Summary of the Invention

[0006] The embodiments disclosed herein aim to at least solve one of the technical problems existing in the prior art, and provide a rapping control method, electronic device and system for an electrostatic precipitator.

[0007] One embodiment of this disclosure provides a method for controlling the vibration of an electrostatic precipitator, the method comprising: Obtain the real-time operating parameters of the electrostatic precipitator; Based on the real-time operating parameters, the time configuration parameters corresponding to each of the multiple vibration execution units are determined; wherein, the time configuration parameters include running time, stop interval, and start timing offset; In response to the target vibration execution unit among the plurality of vibration execution units meeting the start-up conditions, the target vibration execution unit is controlled to perform vibration action, and other vibration execution units within the interlock range are controlled to enter a waiting state; In response to the end of the current operating cycle of the target rapping execution unit, the other rapping execution units in the waiting state are controlled to start sequentially according to their respective start timing offsets; wherein, the current operating cycle is determined based on the running time and the stop interval.

[0008] Furthermore, other vibration execution units within the control interlock range enter a waiting state, including: During the period when the target vibration execution unit performs the vibration action, other vibration execution units within the interlock range are prohibited from starting; The other vibration execution units that are in the waiting state are started sequentially according to their respective start-up timing offsets, including: After the current running cycle ends, the other slapping execution units in the waiting state are sorted according to the time order of the start timing offset, and are triggered to start in sequence according to the sorting result.

[0009] Furthermore, the current operating cycle includes a continuous execution phase and a stop phase, the duration of the execution phase is the running duration, and the duration of the stop phase is the stop interval; The interlock range includes at least one of the following: All rapping actuators within the same electric field area; All rapping actuators within the adjacent electric field region.

[0010] Furthermore, the real-time operating parameters include unit load rate and / or inlet dust concentration; The step of determining the time configuration parameters corresponding to each of the multiple vibration execution units based on the real-time operating parameters includes: Based on the real-time operating parameters, the time configuration parameters are determined according to a preset mapping relationship; wherein the unit load rate and / or the inlet dust concentration are negatively correlated with the stop interval and positively correlated with the running time.

[0011] Further, determining the time configuration parameters based on the real-time operating parameters according to a preset mapping relationship includes: The real-time operating condition parameters are input into a preset operating condition parameter mapping model, and the operating condition parameter mapping model outputs the running time and the stopping interval. The operating condition parameter mapping model is a machine learning model or fitting function model trained based on historical operating condition data and historical vibration effect data; and / or, The preset operating condition parameter configuration table is queried. The operating condition parameter configuration table records multiple discrete operating condition parameter intervals, as well as recommended values ​​for the running time and the stop interval corresponding to each operating condition parameter interval. The recommended value corresponding to the operating condition parameter interval to which the real-time operating condition parameter belongs is determined as the time configuration parameter.

[0012] Furthermore, the method also includes: The physical space of the electrostatic precipitator is divided into multiple control zones; For each control zone, the steps of acquiring the real-time operating parameters, determining the time configuration parameters, and controlling the vibration execution unit to perform vibration actions and start sequentially are executed independently.

[0013] Furthermore, the plurality of control zones include a left ventricular zone and a right ventricular zone; The method further includes: Receive a partition control command for a target control partition, wherein the target control partition is at least one of the plurality of control partitions; In response to the partition control command, all the vibration execution units within the target control partition are started or stopped as a whole.

[0014] Another embodiment of this disclosure provides an electronic device, including: At least one processor; and, A memory communicatively connected to the at least one processor is used to store one or more programs that, when executed by the at least one processor, enable the at least one processor to implement the above-described electrostatic precipitator rapping control method.

[0015] Another embodiment of this disclosure provides a rapping control system for an electrostatic precipitator, the system comprising: The real-time operating condition parameter acquisition module is used to acquire the real-time operating condition parameters of the electrostatic precipitator. The time configuration parameter determination module is used to determine the time configuration parameters corresponding to each of the multiple vibration execution units based on the real-time operating parameters; wherein, the time configuration parameters include running time, stop interval and start timing offset; The target execution unit control module is used to control the target vibration execution unit to perform vibration action in response to the target vibration execution unit among the plurality of vibration execution units meeting the start condition, and to control other vibration execution units within the interlock range to enter a waiting state; Other execution unit control modules are used to control the other rapping execution units in the waiting state to start sequentially according to their respective start-up timing offsets in response to the end of the current running cycle of the target rapping execution unit; wherein, the current running cycle is determined based on the running time and the stop interval.

[0016] Another embodiment of this disclosure provides an electrostatic precipitator, comprising: Dust collection plate; Multiple vibration execution units are configured to perform vibration actions on the dust collection electrode plate; The electronic device and / or the vibration control system described above are communicatively connected to the plurality of vibration execution units and are used to control the plurality of vibration execution units to perform vibration actions.

[0017] This disclosure discloses a rapping control method, electronic device, and system for an electrostatic precipitator. By constructing a parameter adaptive reconstruction mechanism based on real-time operating condition feedback, the rapping intensity can be dynamically adjusted according to changes in random load and dust concentration. This ensures dust removal efficiency under high load conditions while effectively reducing ineffective energy consumption and mechanical wear during low-load deep peak shaving. Furthermore, this application proposes a serial scheduling strategy based on interlocking of operating cycle states and priority of startup timing offsets. This transforms concurrent rapping requests into an ordered queue execution mode, eliminating the possibility of multiple rappers operating simultaneously from the control logic level and eradicating the secondary dust generation problem caused by this. This dual optimization mechanism of "dynamic adaptation + serial anti-collision" significantly improves the overall purification efficiency and operational stability of the electrostatic precipitator under complex and variable operating conditions. Attached Figure Description

[0018] Figure 1 This is a schematic flowchart of a vibration control method for an electrostatic precipitator according to an embodiment of the present disclosure; Figure 2 This is a schematic diagram of the structure of an electronic device according to another embodiment of the present disclosure. Detailed Implementation

[0019] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0020] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0021] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0022] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another. Therefore, the first component discussed below may be referred to as the second component without departing from the teachings of this disclosure. As used in this disclosure, the term "and / or" includes all combinations of any one and more of the associated listed items.

[0023] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of exemplary embodiments, and the modules or processes in the drawings are not necessarily necessary for implementing this disclosure, and therefore cannot be used to limit the scope of protection of this disclosure.

[0024] like Figure 1 As shown in the figure, this application provides a rapping control method for an electrostatic precipitator. This method achieves fine-grained scheduling of multiple rapping execution units by dynamically sensing operating conditions and combining them with a timing interlock mechanism. Specifically, the rapping control method includes the following steps: Step S1: Obtain the real-time operating parameters of the electrostatic precipitator.

[0025] Real-time operating parameters are key data indicators reflecting the current operating status and dust load level of an electrostatic precipitator. In practical applications, these data can be acquired through various sensors and data acquisition interfaces deployed at the flue inlet, inside the electric field, or in the unit control system. For example, real-time operating parameters may include, but are not limited to, unit load rate, inlet dust concentration, flue gas flow rate, flue gas temperature, or estimated ash thickness on the electrode plates. By acquiring these parameters in real time, subsequent control strategies can be based on an objective and real-time physical environment, accurately matching the current actual dust removal needs and avoiding over- or under-cleaning due to fluctuations in operating conditions.

[0026] Step S2: Based on real-time operating parameters, determine the time configuration parameters corresponding to each of the multiple rapping execution units; wherein, the time configuration parameters include running time, stop interval and start timing offset.

[0027] After acquiring real-time operating parameters, the system independently calculates or matches a set of optimal time configuration parameters for each rapping execution unit based on a preset control strategy or algorithm model. Among these, the "start-up timing offset" is a relative time concept distinct from absolute system time, representing the start-up delay or priority weight of the rapping execution unit relative to a certain reference time (such as the end time of the previous rapping cycle or the global synchronization signal time). For example, if the start-up timing offset of the first rapping unit is 0 seconds and the start-up timing offset of the second rapping unit is 5 seconds, then the second rapping unit will start 5 seconds after the first rapping unit. The runtime determines the total energy input of a single rapping cycle, while the stop interval provides a necessary buffer window for dust settling. These three parameters together constitute a complete, adaptive rapping control strategy.

[0028] Step S3: In response to the target vibration execution unit among multiple vibration execution units meeting the start-up conditions, control the target vibration execution unit to perform vibration action, and control other vibration execution units within the interlock range to enter the waiting state.

[0029] When the system detects that the timer of a certain rapping execution unit (i.e., the target rapping execution unit) reaches the time corresponding to its preset start-up timing offset, or when it receives an external trigger signal, it determines that the unit meets the start-up conditions. At this time, the system immediately drives the target rapping execution unit to perform the rapping action, while forcibly putting all other rapping execution units within the same interlocked range into a waiting state. The "interlocked range" is a logical area pre-defined according to the requirements of preventing secondary dust and equipment safety. It can be all rapping units within the same electric field, or it can be a set of related units across electric fields. Even if a rapping execution unit in the waiting state also meets the start-up conditions, it will be temporarily suspended or prohibited from starting until the interlock is released. This state-based forced interlocking mechanism eliminates the possibility of multiple devices operating simultaneously within the interlocked range, effectively avoiding airflow turbulence and dust re-entrainment caused by the superposition of mechanical vibrations.

[0030] Step S4: In response to the end of the current running cycle of the target rapping execution unit, control the other rapping execution units that are in the waiting state to start sequentially according to their respective start timing offsets; wherein, the current running cycle is determined based on the running time and the stop interval.

[0031] The operation of the target rapping execution unit comprises a complete "current operating cycle," which consists of consecutive execution phases (corresponding to runtime) and subsequent stopping phases (corresponding to stopping intervals). The current operating cycle is considered complete only after both phases are finished. Incorporating the stopping interval into cycle management is crucial because it provides sufficient time for the knocked-down dust to settle due to gravity, preventing unsettled dust from being re-ignited by subsequent rapping. Once the current operating cycle ends, the system immediately releases the interlock, reads the start timing offsets of all other rapping execution units in the waiting state, sorts them by size (e.g., from smallest to largest), and triggers their starts sequentially according to the sorting result. For example, if there are three units in the waiting queue with offsets of 10s, 2s, and 8s respectively, the system will release the start commands sequentially in the order of 2s, 8s, and 10s. This offset-based ordered recovery mechanism ensures a staggered distribution of rapping actions on the timeline and gives the system the ability to dynamically adjust priorities based on operating conditions.

[0032] Through the coordinated operation of steps S1 to S4 above, this embodiment constructs a closed-loop vibration control system, which can not only realize the dynamic reconstruction of parameters through real-time working condition feedback, but also eliminate the secondary dust problem caused by time overlap through a strict periodic interlock and offset sorting mechanism.

[0033] This embodiment further specifies the execution details and spatial boundaries of the serial scheduling mechanism. Optionally, controlling other rapping execution units within the interlock range to enter a waiting state includes: prohibiting other rapping execution units within the interlock range from starting while the target rapping execution unit is performing a rapping action. Specifically, when the system determines that the target rapping execution unit meets the starting conditions and outputs a drive signal, it will synchronously send a lockout command to the control loop of all other rapping execution units within the interlock range or cut off their enable signals. Even if the timers of other rapping execution units have reached a preset time, as long as the target rapping execution unit is still in operation, the physical output channels of these units are forcibly kept disconnected. This hard interlock design ensures that within any given instantaneous time window, there is only one vibration source within the interlock region, avoiding fatigue damage to the electrode plates and wires caused by mechanical resonance and the resulting airflow turbulence.

[0034] Optionally, other rapping execution units in the waiting state can be started sequentially according to their respective start timing offsets. This includes: after the current running cycle ends, sorting the other rapping execution units in the waiting state according to the time order of their start timing offsets, and triggering them sequentially according to the sorting result. Specifically, when the target rapping execution unit completes its full current running cycle, the interlock state is released, and the system immediately activates the queuing scheduling logic, reading the start timing offset parameters of all rapping execution units in the waiting state in real time, and sorting them in ascending or descending order using the parameter value as the key. For example, assuming the start timing offsets of the remaining second, third, and fourth rapping units are 10 seconds, 2 seconds, and 8 seconds, respectively, the system will first trigger the second rapping unit with the smallest offset (2 seconds), then trigger the fourth rapping unit (8 seconds) after its running cycle ends, and finally trigger the third rapping unit (10 seconds). This dynamic sorting mechanism based on offsets allows the rapping sequence to flexibly adjust the execution order according to the current configuration parameters of each unit, taking into account both anti-collision security and scheduling flexibility.

[0035] Optionally, the current operating cycle includes a continuous execution phase and a stop phase. The duration of the execution phase is the running time, and the duration of the stop phase is the stop interval. Specifically, the execution phase corresponds to the actual working time of the rapping motor or electromagnetic hammer, responsible for providing the mechanical energy required to peel off the accumulated dust; the stop phase is the subsequent silent settling window, providing sufficient time for the knocked-down dust particles to settle due to gravity. If only the execution phase is considered an interlocked cycle, and the next rapper is allowed to start during the stop phase, the dust raised by the previous rapper will not have settled before the airflow disturbance generated by the next rapper will pick it up again, forming secondary dust. Therefore, only when both the execution phase and the stop phase are completed is a complete scheduling unit considered to have ended.

[0036] Optionally, the interlocking range includes at least one of the following: all rapping actuators within the same electric field area; and all rapping actuators within adjacent electric field areas. Specifically, multiple sets of cathode and anode rapping devices are typically arranged in the same electric field. If they operate simultaneously, it will cause mechanical interference and lead to drastic fluctuations in local electric field strength. By interlocking within the same electric field, the singularity and stability of the dust removal operation within that area are ensured. Extending the interlocking range to adjacent electric field areas can prevent the dust generated by rapping in the upstream electric field from overlapping with the dust cloud generated downstream, thus avoiding excessive emissions. The above two interlocking ranges can be used individually or in combination to adapt to the operating conditions of different unit capacities and different dust characteristics.

[0037] This embodiment further details the parameter adaptive reconfiguration mechanism based on operating condition feedback. Optionally, real-time operating condition parameters include unit load rate and / or inlet dust concentration. Based on the real-time operating condition parameters, the time configuration parameters corresponding to each of the multiple rapping execution units are determined, including: determining the time configuration parameters according to a preset mapping relationship based on the real-time operating condition parameters; wherein, unit load rate and / or inlet dust concentration are negatively correlated with the stop interval and positively correlated with the running time. Specifically, when the unit load rate increases or the inlet dust concentration increases, the dust accumulation rate on the electrode surface accelerates, and the system automatically shortens the stop interval to increase the cleaning frequency, and simultaneously extends the running time to increase the energy input of a single rapping. Conversely, under low-load conditions, the dust accumulation rate slows down, and the system automatically extends the stop interval to reduce the frequency of actions, and appropriately shortens the running time to avoid over-cleaning. This adaptive adjustment based on physical mechanisms allows the rapping strategy to follow the fluctuations of operating conditions in real time, maximizing energy saving and consumption reduction under low load while ensuring high-load dust removal performance.

[0038] Optionally, based on real-time operating parameters, time configuration parameters are determined according to a preset mapping relationship. This includes: inputting real-time operating parameters into a preset operating parameter mapping model, and outputting the runtime and stopping interval through the operating parameter mapping model. The operating parameter mapping model is a machine learning model or fitting function model trained based on historical operating data and historical rapping effect data. Specifically, the system collects long-term historical operating data from the power plant's distributed control system (DCS) or plant-level monitoring information system, and trains and constructs an operating parameter mapping model capable of representing complex nonlinear relationships, such as a machine learning model based on algorithms like backpropagation neural networks, support vector regression, or random forests, or a fitting function model based on multivariate nonlinear regression analysis. During online operation, the system feeds real-time operating parameters as input vectors into the model and directly outputs the recommended values ​​for the current optimal runtime and stopping interval. This model can be periodically retrained offline or incrementally learned online as new data accumulates to maintain prediction accuracy.

[0039] As another implementation method, optionally, determining the time configuration parameters based on real-time operating parameters according to a preset mapping relationship also includes: querying a preset operating parameter configuration table, which records multiple discrete operating parameter ranges and recommended values ​​for the running time and stop interval corresponding to each operating parameter range; and determining the recommended value corresponding to the operating parameter range to which the real-time operating parameter belongs as the time configuration parameter. Specifically, technicians pre-define the operating parameter configuration table based on long-term operating experience or simulation test results. For example, for unit load rates: the 0% to 30% deep peak shaving range corresponds to a stop interval of 600 seconds and a running time of 3 seconds; the 30% to 60% medium-low load range corresponds to a stop interval of 400 seconds and a running time of 5 seconds; and the 60% to 100% high load range corresponds to a stop interval of 200 seconds and a running time of 8 seconds. During system operation, it only needs to determine which preset range the current operating parameter falls into to quickly index the corresponding recommended parameter value, offering advantages such as fast response speed, strong logical interpretability, and convenient debugging and maintenance.

[0040] The two parameter determination paths mentioned above are not mutually exclusive and can be flexibly selected or combined according to site conditions. For example, a hybrid mode can be constructed: using the parameters determined by the lookup table method as the basic benchmark value, and then using a lightweight fitting function model to make corrections and compensations based on real-time minute fluctuations, thus balancing engineering robustness and control precision.

[0041] This embodiment further illustrates the independent control mechanism for the physical space partitions of the electrostatic precipitator. Optionally, the method also includes: dividing the physical space of the electrostatic precipitator into multiple control partitions; and for each control partition, independently executing the steps of acquiring real-time operating parameters, determining time configuration parameters, and controlling the rapping execution unit to perform rapping actions and sequentially start them. Specifically, large electrostatic precipitators typically adopt a dual-chamber or multi-chamber parallel structure. Due to factors such as flue layout, guide plate efficiency, or boiler combustion deviation, the flue gas flow rate, dust concentration, and temperature in different physical areas often vary significantly. By dividing the system into multiple control partitions, the system can establish an independent operating condition sensing loop and scheduling queue for each partition. For example, the left chamber partition can automatically match a shorter stop interval and a longer running time based on its higher dust concentration, while the right chamber partition can automatically extend the stop interval to reduce energy consumption based on its lower load rate. The partitions are logically completely decoupled, but within each control partition, the aforementioned serial scheduling mechanism is still strictly followed, forming a dual architecture of "partition autonomy + intra-partition serial scheduling".

[0042] Optionally, the multiple control zones include a left chamber zone and a right chamber zone; the method further includes: receiving a zone control command for a target control zone, where the target control zone is at least one of multiple control zones; and, in response to the zone control command, performing a collective start or stop on all rapping actuators within the target control zone. Specifically, the zone control command is typically generated by upper-level monitoring software, a distributed control system (DCS), or a local control panel. When the system receives a "collective stop" command for a specific zone, the controller immediately suspends the automatic scheduling tasks of all rapping actuators within that zone. Other zones that have not received stop commands are unaffected and continue to operate according to their predetermined strategies. When a "collective start" command is received, the system restores the automatic scheduling logic for that zone and recalculates the time configuration parameters of each unit based on the current real-time operating parameters. This batch control capability is crucial for handling sudden faults; for example, when a short circuit or mechanical jamming occurs in a zone's electric field, requiring emergency isolation and maintenance, only a single zone stop command is needed to achieve safe isolation. Control zones can also be divided according to electric field number, ash hopper area, etc. Zone control commands can also be extended to mode switching commands (such as switching from automatic mode to manual test mode).

[0043] like Figure 2 As shown, another embodiment of this disclosure provides an electronic device, including: At least one processor 201; and a memory 202 communicatively connected to the at least one processor 201 for storing one or more programs that, when executed by the at least one processor 201, enable the at least one processor 201 to implement the above-described rapping control method for an electrostatic precipitator.

[0044] The memory 202 and processor 201 are connected via a bus, which may include any number of interconnecting buses and bridges, connecting various circuits of one or more processors 201 and memory 202 together. The bus may also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 201 is transmitted over a wireless medium via an antenna, which further receives data and transmits it to processor 201.

[0045] Processor 201 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory 202 can be used to store data used by processor 201 during operation.

[0046] Another embodiment of this disclosure provides a rapping control system for an electrostatic precipitator. The system includes: The real-time operating condition parameter acquisition module is used to acquire the real-time operating condition parameters of the electrostatic precipitator. The time configuration parameter determination module is used to determine the time configuration parameters corresponding to each of the multiple vibration execution units based on the real-time operating parameters; wherein, the time configuration parameters include running time, stop interval and start timing offset; The target execution unit control module is used to control the target vibration execution unit to perform vibration action in response to the target vibration execution unit among the plurality of vibration execution units meeting the start condition, and to control other vibration execution units within the interlock range to enter a waiting state; Other execution unit control modules are used to control the other rapping execution units in the waiting state to start sequentially according to their respective start-up timing offsets in response to the end of the current running cycle of the target rapping execution unit; wherein, the current running cycle is determined based on the running time and the stop interval.

[0047] In actual systems, the aforementioned functional modules are often highly integrated into the same PLC rack or distributed I / O station, and exchange data at high speed through a backplane bus. They have good scalability, and when the electrostatic precipitator is expanded or upgraded, only the corresponding I / O modules need to be added and the configuration parameters updated.

[0048] It is understood that the rapping control system of an electrostatic precipitator in this disclosure is used to implement the rapping control method of the electrostatic precipitator described in the above embodiments. The specific implementation process has been described in detail in the above embodiments, and will not be repeated here.

[0049] Another embodiment of this disclosure provides an electrostatic precipitator, including a dust collecting plate, a plurality of rapping actuators, and electronic equipment and / or a rapping control system as described above.

[0050] The dust collecting plates are the core collecting components inside an electrostatic precipitator. They typically consist of multiple parallel metal plates suspended within the casing. Types such as C480, ZT24, or other plate types suitable for specific flue gas conditions can be used. When dust-laden flue gas passes through the high-voltage electric field area, dust particles become charged under the influence of the electric field and migrate and are adsorbed onto the collecting plates, gradually accumulating to form a ash layer.

[0051] Multiple rapping actuators are configured to perform rapping actions on the dust collecting plates, causing the accumulated dust adhering to the surface of the dust collecting plates to fall into the ash hopper below. The rapping actuators can be top electromagnetic rappers, side rotary mechanical rapping hammers, or bottom pneumatic rapping devices, etc. Each rapping actuator is independently addressed and controlled, and can accurately execute rapping actions according to the running time, stop interval, and start timing offset parameters issued by the control system.

[0052] The electronic equipment and / or rapping control system are communicatively connected to multiple rapping actuators to control them to perform rapping actions. The communication connection can be hardwired or built on industrial fieldbus or industrial Ethernet (such as PROFIBUS-DP, Modbus RTU / TCP, etc.), and in practice, a combination of these methods is often used. The control system can be deployed in a local control cabinet, integrated into the DCS system in the power plant's central control room, or remotely accessed as part of a cloud-based optimization service.

[0053] The following example illustrates the technical effects of this application using a 600MW coal-fired power generating unit in a deep peak-shaving operation scenario with rapping control.

[0054] In this scenario, the electrostatic precipitator is equipped with the electronic equipment or rapping control system described in the aforementioned embodiments to acquire the unit load rate and inlet dust concentration in real time as real-time operating parameters. When the unit is operating at a high-load steady-state of 80% rated load, the inlet dust concentration is maintained at 30 g / Nm³. 3 The system automatically matches shorter stop intervals (e.g., 200 seconds) and longer running times (e.g., 8 seconds) to ensure that the electrode dust layer is removed in a timely manner.

[0055] With the grid dispatch order issued, the generating unit entered the deep peak shaving phase, and the load rate rapidly decreased from 80% to 30% within 30 minutes, with the inlet dust concentration simultaneously dropping to 10g / Nm³. 3 The following applies. If the traditional fixed-cycle rapping mode is used, excessively frequent rapping will re-stir up the already settled fine dust, creating secondary dust pollution. However, in this application's solution, the system immediately triggers dynamic parameter reconfiguration upon detecting a sudden change in operating conditions.

[0056] Based on the negative correlation between unit load rate and / or inlet dust concentration and stop interval, and the positive correlation with operating time, the system automatically extends the stop interval from 200 seconds to 600 seconds, while shortening the operating time from 8 seconds to 3 seconds. At low loads, the dust accumulation rate slows down; extending the stop interval provides a sufficient settling window for dust and reduces energy consumption, while shortening the operating time avoids excessive impact on the electrode plates.

[0057] After parameter reconstruction is completed, the system continues to execute the serial scheduling logic. Although multiple rapping execution units may arrive at their startup time within a similar time window, the system strictly enforces an interlocking mechanism, allowing only the target rapping execution unit that first meets the conditions to start, while the others are forced into a waiting state. After the target unit completes a full cycle of "3 seconds of operation + 600 seconds of shutdown", the startup command is released sequentially in ascending order of startup timing offset, ensuring that there is sufficient time interval between each rapping to allow the dust cloud to settle fully.

[0058] Compared to the traditional fixed-cycle rapping mode, under 30% deep peak shaving conditions, the electrostatic precipitator rapping system using the proposed solution reduces the average daily power consumption by approximately 40%, decreases the mechanical wear rate of the rapping hammers and plates by approximately 30%, and consistently keeps the outlet dust emission concentration within ultra-low emission standards. It should be understood that the aforementioned 600MW unit and specific figures are merely illustrative examples; this solution is also applicable to units of different capacities such as 300MW and 1000MW, as well as electrostatic precipitator systems in non-power industries such as steel and cement.

[0059] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A method for controlling the vibration of an electrostatic precipitator, characterized in that, The method includes: Obtain the real-time operating parameters of the electrostatic precipitator; Based on the real-time operating parameters, the time configuration parameters corresponding to each of the multiple vibration execution units are determined; wherein, the time configuration parameters include running time, stop interval, and start timing offset; In response to the target vibration execution unit among the plurality of vibration execution units meeting the start-up conditions, the target vibration execution unit is controlled to perform vibration action, and other vibration execution units within the interlock range are controlled to enter a waiting state; In response to the end of the current operating cycle of the target rapping execution unit, the other rapping execution units in the waiting state are controlled to start sequentially according to their respective start timing offsets; wherein, the current operating cycle is determined based on the running time and the stop interval.

2. The method according to claim 1, characterized in that, Other vibration execution units within the control interlock range enter a waiting state, including: During the period when the target vibration execution unit performs the vibration action, other vibration execution units within the interlock range are prohibited from starting; The other vibration execution units that are in the waiting state are started sequentially according to their respective start-up timing offsets, including: After the current running cycle ends, the other slapping execution units in the waiting state are sorted according to the time order of the start timing offset, and are triggered to start in sequence according to the sorting result.

3. The method according to claim 2, characterized in that, The current operating cycle includes a continuous execution phase and a stop phase, the duration of the execution phase is the running duration, and the duration of the stop phase is the stop interval; The interlock range includes at least one of the following: All rapping actuators within the same electric field area; All rapping actuators within the adjacent electric field region.

4. The method according to claim 1, characterized in that, The real-time operating parameters include unit load rate and / or inlet dust concentration; The step of determining the time configuration parameters corresponding to each of the multiple vibration execution units based on the real-time operating parameters includes: Based on the real-time operating parameters, the time configuration parameters are determined according to a preset mapping relationship; wherein the unit load rate and / or the inlet dust concentration are negatively correlated with the stop interval and positively correlated with the running time.

5. The method according to claim 4, characterized in that, The step of determining the time configuration parameters based on the real-time operating parameters according to a preset mapping relationship includes: The real-time operating condition parameters are input into a preset operating condition parameter mapping model, and the operating condition parameter mapping model outputs the running time and the stopping interval. The operating condition parameter mapping model is a machine learning model or fitting function model trained based on historical operating condition data and historical vibration effect data; and / or, The preset operating condition parameter configuration table is queried. The operating condition parameter configuration table records multiple discrete operating condition parameter intervals, as well as recommended values ​​for the running time and the stop interval corresponding to each operating condition parameter interval. The recommended value corresponding to the operating condition parameter interval to which the real-time operating condition parameter belongs is determined as the time configuration parameter.

6. The method according to claim 1, characterized in that, The method further includes: The physical space of the electrostatic precipitator is divided into multiple control zones; For each control zone, the steps of acquiring the real-time operating parameters, determining the time configuration parameters, and controlling the vibration execution unit to perform vibration actions and start sequentially are executed independently.

7. The method according to claim 6, characterized in that, The multiple control zones include left ventricular zones and right ventricular zones; The method further includes: Receive a partition control command for a target control partition, wherein the target control partition is at least one of the plurality of control partitions; In response to the partition control command, all the vibration execution units within the target control partition are started or stopped as a whole.

8. An electronic device, characterized in that, include: At least one processor; as well as, A memory communicatively connected to the at least one processor is used to store one or more programs that, when executed by the at least one processor, enable the at least one processor to implement the rapping control method for the electrostatic precipitator according to any one of claims 1 to 7.

9. A rapping control system for an electrostatic precipitator, characterized in that, The system includes: The real-time operating condition parameter acquisition module is used to acquire the real-time operating condition parameters of the electrostatic precipitator. The time configuration parameter determination module is used to determine the time configuration parameters corresponding to each of the multiple vibration execution units based on the real-time operating parameters; wherein, the time configuration parameters include running time, stop interval and start timing offset; The target execution unit control module is used to control the target vibration execution unit to perform vibration action in response to the target vibration execution unit among the plurality of vibration execution units meeting the start condition, and to control other vibration execution units within the interlock range to enter a waiting state; Other execution unit control modules are used to control the other rapping execution units in the waiting state to start sequentially according to their respective start-up timing offsets in response to the end of the current running cycle of the target rapping execution unit; wherein, the current running cycle is determined based on the running time and the stop interval.

10. An electrostatic precipitator, characterized in that, include: Dust collection plate; Multiple vibration execution units are configured to perform vibration actions on the dust collection electrode plate; The electronic device as described in claim 8 and / or the vibration control system as described in claim 9 are communicatively connected to the plurality of vibration execution units for controlling the plurality of vibration execution units to perform vibration actions.

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