Intelligent monitoring and automatic cleaning system for drying exhaust gas plasma deodorization electric field

Abstract

The present application belongs to the technical field of waste gas purification, and relates to a drying waste gas plasma deodorization electric field intelligent monitoring and automatic cleaning system. The system comprises: a reference establishment and stabilization module, which calibrates initial intrinsic phase angle reference data of a zero point offset time difference; a pollution sensing and detuning triggering module, which triggers detuning to generate high-frequency acoustic oscillation distortion waves; a sound energy conversion and guiding module, which generates high-frequency ultrasonic standing wave fields; a valve group resonance and working medium release module, which is connected with a high-pressure fluid release channel; a jet explosion and dirt peeling module, which generates gas-liquid mixed atomized jet flow to peel off solid-liquid mixed impurity coating layers; a feedback tuning and stop vibration locking module, which generates compensation analog electric signals to force high-frequency acoustic oscillation distortion wave frequency deviation to generate shock wave frequency deviation vectors; and a state recovery and electric field reconstruction module, which recovers the emission of main pulse carriers. The present application solves the problems of insufficient stripping force of gas purging and easy jamming of mechanical reciprocating structures.

Description

Technical Field

[0001] This invention belongs to the technical field of waste gas purification and relates to an intelligent monitoring and automatic cleaning system for plasma deodorization electric field in drying waste gas. Background Technology

[0002] In the drying processes of industries such as textiles, printing and dyeing, papermaking, and food processing, large amounts of high-temperature waste gas containing high humidity, moisture, and fine dust are continuously generated. This type of waste gas is treated using conventional low-temperature plasma deodorization equipment. The plasma generator produces a high concentration of particles that collide with oxygen molecules in the air to form ion clusters. The strong oxidizing properties of positive oxygen ions decompose pollutants, while charged ions adsorb suspended particles, causing them to settle. This process effectively removes suspended colloids and fumes from the odorous gas. For example, Chinese patent application number 202010365492.X discloses a low-temperature plasma deodorization device. This prior art mainly includes an air intake hood, a plasma generator, and a fan. The plasma generator contains a sleeve connected to the negative terminal of a power supply and a discharge rod connected to the positive terminal. To achieve self-cleaning, this technology includes a sliding ring driven by a reciprocating mechanism on the inner wall of the sleeve. The sliding ring has a first air jet hole angled towards the end of the discharge rod and a second air jet hole angled towards the end of the inner wall of the sleeve. These air jet holes are connected to an external pressure air source pipeline, attempting to blow away deposits through air jets.

[0003] The aforementioned existing technologies primarily rely on an external pressurized air source to blow away deposits on the electrodes and sleeves through jet holes on the sliding ring during equipment self-cleaning. However, when facing highly adhesive dust or complex contaminants, simple gas blowing often fails to provide sufficient physical stripping force, resulting in incomplete cleaning of deposits on the electrode surface. Simultaneously, the sliding ring's contact-based reciprocating motion in a dusty environment can easily increase frictional resistance due to contaminant accumulation, potentially even causing mechanical jamming. This affects the long-term stability and reliability of the cleaning system.

[0004] Therefore, the technical problem to be solved by this invention is how to overcome the defects of insufficient gas purging and peeling force and easy jamming of mechanical reciprocating structure. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an intelligent monitoring and automatic cleaning system for the plasma deodorization electric field of drying waste gas. It includes the following modules: The benchmark establishment and stabilization module uses a dual-mode plasma acoustic-electric excitation source to inject the main pulse carrier into a fixed working electrode network and calculates the zero-point offset time difference to calibrate the initial intrinsic phase angle benchmark data. The pollution sensing and detuning triggering module acquires the real-time polarization phase shift difference formed by the adsorption of exhaust gas on the working electrode network, calculates the dynamic phase hysteresis angle by combining the initial intrinsic phase angle reference data, and triggers detuning to generate high-frequency acoustic oscillation distortion waves.

[0006] The acoustic energy conversion and guidance module feeds high-frequency acoustic oscillation distortion waves into the working electrode network and converts them into mechanical vibration energy waves, generating a high-frequency ultrasonic standing wave field. The valve assembly resonance and working fluid release module uses a high-frequency ultrasonic standing wave field to excite the resonance of a preset microelectromechanical reed valve assembly firmware system, thereby connecting the high-pressure fluid release channel. The jet blasting and dirt removal module guides a preset gas-liquid mixed cleaning agent through a high-pressure fluid release channel. Under the action of a high-frequency ultrasonic standing wave field, a gas-liquid mixed atomized jet is generated to remove the solid-liquid mixed impurity coating layer area. The feedback tuning and vibration cessation interlocking module captures the spatial displacement coordinate difference group caused by stripping, calculates the dynamic acoustic mass load reduction coefficient parameter, generates a compensation analog electrical signal to force high-frequency acoustic oscillation distortion wave frequency offset, and generates shock wave frequency offset vector. When the shock wave frequency offset vector exceeds the preset strain tolerance threshold, the microelectromechanical reed valve assembly firmware system cuts off the preset gas-liquid mixture cleaning agent and resumes the transmission of the main pulse carrier in the state recovery and electric field reconstruction module.

[0007] A further aspect of the present invention involves calculating the initial intrinsic phase angle reference data for zero-point offset time difference calibration, including the following steps: The self-feedback impedance detection circuit network embedded in the peripheral nodes of the working electrode network is invoked to simultaneously extract the instantaneous waveforms of AC current and AC voltage flowing through the output interface of the dual-mode plasma acoustic-electric excitation source. Calculate the zero-point offset time difference between the instantaneous waveform of AC current and the instantaneous waveform of AC voltage; The initial intrinsic phase angle reference data representing the state without large-area adhesion contamination was determined based on the zero-point offset time difference.

[0008] A further aspect of the present invention involves triggering detuning to generate high-frequency acoustic oscillation distortion waves, comprising the following steps: The dynamic phase hysteresis angle is generated by calculating the absolute deviation between the real-time phase shift difference and the initial phase angle reference data. The dynamic phase hysteresis angle was successfully identified and crossed the preset main circuit stability tolerance threshold. When the dynamic phase hysteresis angle crosses the preset critical threshold of the main circuit stability tolerance, it changes the resonant balance state of the internal parasitic inductance structure of the acoustic-electric excitation source and the overall equivalent capacitance level of the working electrode network. Based on the change in the resonant equilibrium state, a carrier frequency shift operation is performed on the main pulse carrier to generate a high-frequency acoustic oscillation distortion wave.

[0009] A further aspect of the present invention involves feeding a high-frequency acoustic oscillation distortion wave into a fixed working electrode network and converting it into a mechanical vibration energy wave, comprising the following steps: The high-frequency acoustic oscillation distortion wave is extracted from the main pulse release path by using a waveform gating and separation network structure; The extracted high-frequency acoustic oscillation distortion wave is fed back into the hard metal lattice chain structure layer of the working electrode network; By exciting the transmission of co-frequency mechanical vibrations of atoms arranged in the chain structure of a hard metal lattice, the intrinsic parameters of high-frequency acoustic oscillation distortion waves are converted into mechanical vibration energy waves.

[0010] A further aspect of the present invention generates a high-frequency ultrasonic standing wave field, comprising the following steps: The mechanical vibration energy wave is bound and focused and continuously converges along the waveguide blind hole path pre-stamped in the polar plate web; Guide the mechanical vibration energy waves to converge throughout the entire physical contact interface area; A high-frequency ultrasonic standing wave field covering the entire bottom surface is formed in the physical contact boundary region.

[0011] A further aspect of the present invention utilizes a high-frequency ultrasonic standing wave field to excite resonance in a pre-set microelectromechanical reed valve assembly firmware system, comprising the following steps: The high-frequency ultrasonic standing wave field is guided into the pressure-excited connection end face of the physical cleaning array; A microelectromechanical reed valve assembly firmware system encapsulated at the outer end of a physical cleaning array by transmitting touch stimulation; Verify that the microelectromechanical reed valve assembly firmware system carries a preset specific mechanical resonant frequency; The high frequency of the ultrasonic standing wave field coincides with the preset specific mechanical resonance frequency, which generates a resonant yield strain tension field effect, driving the closed mechanical gap of the microelectromechanical reed valve assembly firmware system to continuously expand and buckle outward from tight locking.

[0012] A further embodiment of the present invention involves generating a gas-liquid mixed atomized jet through a high-frequency ultrasonic standing wave field to peel off the solid-liquid mixed impurity coating layer region, comprising the following steps: The pre-set gas-liquid mixed cleaning agent flows through the capillary release pores under high-speed, strong vibration conditions; Inject the pre-set gas-liquid mixture cleaning agent into the acoustically agitated restricted area; Based on the ultrasonic cavitation effect generated by the superposition of high-frequency ultrasonic standing wave fields, the gas-liquid mixed cleaning agent is converted into a gas-liquid mixed atomized jet. The gas-liquid mixed atomized jet is controlled to collide with the micro-capillary gaps in the impurity coating area. Based on the jet burst phase change vaporization volume generated by the gas-liquid mixed atomized jet, cavitation burst impact force is generated, and the impurity coating area is peeled off by the cavitation burst impact force.

[0013] A further aspect of the present invention involves calculating the dynamic acoustic mass load reduction coefficient parameter by capturing the spatial displacement coordinate difference group caused by stripping, including the following steps: The gradient decline and abrupt drop of the apparent physical mass of the working electrode network during the flow of residual solid-liquid mixture impurities carried by the exhaust gas out of the dust removal control duct area are observed. Capture the group of three-dimensional spatial displacement coordinate differences of global structural rigidity and acoustic-mechanical resonance nodes caused by the continuous loss of overall adsorption mass; The dynamic acoustic mass load reduction coefficient parameter corresponding to the three-dimensional spatial displacement coordinate difference group was calculated.

[0014] A further aspect of the present invention involves generating a shock wave frequency offset vector by forcing high-frequency acoustic oscillation distortion wave using a compensated analog electrical signal, comprising the following steps: The mass load reduction factor is input into the physical deduction and reverse conversion mapping calculation module in the preset inverse piezoelectric and photoelectric feedback closed loop to generate a compensated analog electrical signal. The compensation analog electrical signal is fed back to the main control driving layer of the acoustic-electric excitation source, and the frequency spectrum center of the high-frequency distortion wave is shifted according to the compensation analog electrical signal.

[0015] A further aspect of the present invention involves resuming the transmission of the main pulse carrier, comprising the following steps: When the spectral center offset of the high-frequency distorted wave exceeds the mechanical strain tolerance threshold corresponding to the consolidation mechanical resonant frequency, the fatigue tensile stress applied to the reed valve assembly firmware system is removed. Release the pre-stored mechanical compression energy inside the reed valve assembly firmware system, control the reed valve assembly firmware system to spring back and construct a fluid cut-off structure, and cut off the fluid release channel through the fluid cut-off structure; Data on the volatile state of liquid molecules and the spatial dielectric constant characteristic value around the working electrode network are obtained. When the data on the volatile state of liquid molecules and the spatial dielectric constant characteristic value meet the preset conditions, the main pulse carrier is re-injected into the working electrode network to generate a deodorizing electroionization field network.

[0016] In summary, the present invention has the following beneficial technical effects: 1. By extracting the initial intrinsic phase angle of the discharge space as reference data, and continuously monitoring the polarization phase shift difference caused by the impurity coating layer during operation, the system can quantitatively assess the degree of contamination accumulation online by comparing the real-time deviation with the reference data. Compared with conventional cleaning methods that use fixed time intervals, this solution determines the triggering of the cleaning action based on the actual contamination state of the electrode, which helps reduce resource waste caused by blindly timing cleaning or equipment performance degradation caused by untimely cleaning.

[0017] 2. Utilizing the hardware-level self-excited topological detuning response triggered by the polarization phase shift difference exceeding its limit, the load impedance change caused by pollutants is transformed into a shift in the power loop resonant point, thereby spontaneously generating a high-frequency acoustic oscillation distortion wave at a specific frequency. This mechanism eliminates the need for additional independent pollution sensors and complex signal conditioning circuits. The excitation sources for monitoring and cleaning are directly derived from the power supply system itself, thus reducing the hardware complexity of the system and helping to minimize the impact of external environmental interference on the monitoring results.

[0018] 3. The extracted high-frequency distorted wave is fed back into the electrode structure, transforming it into a high-frequency ultrasonic standing wave field that propagates along a pre-set blind hole path. Utilizing the frequency matching characteristics of this energy field with the microelectromechanical reed valve assembly, passive long-distance activation of the embedded valve assembly is achieved, thereby opening the release channel of the cleaning fluid. This non-contact energy transmission method eliminates the need to lay power supply wires or control cables in the high-voltage hazardous area of ​​the electrode, helping to improve the insulation safety and fluid control reliability of the equipment under high-temperature, high-humidity, and high-voltage discharge environments.

[0019] 4. After the cleaning medium is released, the cavitation effect of the standing wave energy field transforms the liquid flow into a fine jet of phase-change particles, enabling it to penetrate the microscopic pores of the dirt and produce an expansion and peeling effect, which helps improve the cleaning effect on highly viscous, oil-dust mixed dirt. Simultaneously, during the cleaning process, a feedback compensation signal is generated by sensing the reduction in the mass load of the sensing plates, guiding the oscillation frequency to shift out of the valve assembly's resonant frequency band. This allows the microelectromechanical valve assembly to automatically reset and lock using its own mechanical energy, reducing reliance on manual intervention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are used to provide a further understanding of the present invention.

[0021] Figure 1 This discloses a schematic diagram of the framework in the embodiments of this application.

[0022] Figure 2 This discloses a flowchart of an embodiment of this application. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 - Figure 2 A preferred description of the present invention is provided below.

[0024] See attached document Figure 1 - Figure 2 This invention proposes an intelligent monitoring and automatic cleaning system for plasma deodorization electric field in drying waste gas, comprising the following modules: A smart monitoring and automatic cleaning system for plasma deodorization electric field in drying waste gas includes: The benchmark establishment and stabilization module uses a dual-mode plasma acoustic-electric excitation source to inject the main pulse carrier into a fixed working electrode network and calculates the zero-point offset time difference to calibrate the initial intrinsic phase angle benchmark data. The pollution sensing and detuning triggering module acquires the real-time polarization phase shift difference formed by the adsorption of exhaust gas on the working electrode network, calculates the dynamic phase hysteresis angle by combining the initial intrinsic phase angle reference data, and triggers detuning to generate high-frequency acoustic oscillation distortion waves.

[0025] The acoustic energy conversion and guidance module feeds high-frequency acoustic oscillation distortion waves into the working electrode network and converts them into mechanical vibration energy waves, generating a high-frequency ultrasonic standing wave field. The valve assembly resonance and working fluid release module uses a high-frequency ultrasonic standing wave field to excite the resonance of a preset microelectromechanical reed valve assembly firmware system, thereby connecting the high-pressure fluid release channel. The jet blasting and dirt removal module guides a preset gas-liquid mixed cleaning agent through a high-pressure fluid release channel. Under the action of a high-frequency ultrasonic standing wave field, a gas-liquid mixed atomized jet is generated to remove the solid-liquid mixed impurity coating layer area. The feedback tuning and vibration cessation interlocking module captures the spatial displacement coordinate difference group caused by stripping, calculates the dynamic acoustic mass load reduction coefficient parameter, generates a compensation analog electrical signal to force high-frequency acoustic oscillation distortion wave frequency offset, and generates shock wave frequency offset vector. When the shock wave frequency offset vector exceeds the preset strain tolerance threshold, the microelectromechanical reed valve assembly firmware system cuts off the preset gas-liquid mixture cleaning agent and resumes the transmission of the main pulse carrier in the state recovery and electric field reconstruction module.

[0026] In one embodiment of the present invention, the benchmark establishment and stabilization module is used to perform the following steps: The self-feedback impedance detection circuit network embedded in the peripheral nodes of the working electrode network is invoked to synchronously extract the instantaneous waveforms of AC current and AC voltage flowing through the output interface of the dual-mode plasma acoustic-electric excitation source; the zero-point offset time difference between the instantaneous waveforms of AC current and AC voltage is calculated; and the initial intrinsic phase angle reference data representing the state without large-area adhesion contamination is calibrated based on the zero-point offset time difference.

[0027] Specifically, the baseline establishment and stabilization module is executed first to build and run the dual-mode plasma acoustic-electric excitation source to generate the initial working platform state. This module is scheduled by the system main control unit, such as a hybrid controller integrating a digital signal processor (DSP) and a field-programmable gate array (FPGA). The main control unit first sends a start command to the power drive module of the dual-mode plasma acoustic-electric excitation source. This module is typically composed of an H-bridge topology formed by insulated-gate bipolar transistors (IGBTs). The dual-mode plasma acoustic-electric excitation source is a high-frequency resonant inverter power supply built based on silicon carbide (SiC) or IGBT power devices, which can switch between pure plasma discharge mode and acoustic-electric coupling mode. This module operates in pure plasma discharge mode.

[0028] According to the start command, the power drive module generates and injects a main pulse carrier into the working electrode network built into the exhaust gas treatment channel through pulse width modulation (PWM) technology. The working electrode network consists of multiple sets of parallel plate-shaped or honeycomb-shaped electrodes, made of corrosion-resistant 316L stainless steel or titanium alloy coated with titanium dioxide nano-coating, so as to have photocatalytic activity while discharging.

[0029] The initial rated frequency of the injected main pulse carrier is Initial rated frequency The frequency is set to 80 kHz. This frequency is based on a trade-off between ensuring discharge efficiency and suppressing electromagnetic interference. It is a typical value selected based on a large amount of experimental data. 80 kHz can match the switching frequency range of conventional IGBT power devices. This frequency has sufficient ionization energy to maintain stable plasma discharge while effectively avoiding the severe electromagnetic radiation interference and excessive capacitive heating losses to the electrode dielectric caused by higher frequencies. Its waveform can be a quasi-sine wave or a high-frequency square wave. After being stepped up by a high-voltage transformer, it is applied to both ends of the electrode to form the initial discharge electric field.

[0030] Simultaneously with the injection of the main pulse carrier, the self-feedback impedance detection circuit network embedded in the peripheral nodes of the working electrode network test is activated. This detection circuit network includes a high-frequency coil for non-contact acquisition of the instantaneous waveform of the AC current. And a high-impedance voltage divider probe for measuring instantaneous AC voltage waveforms. These two analog waveform signals are fed into a high-speed analog-to-digital converter (ADC) for sampling and quantization, forming a discrete-time digital sequence.

[0031] Subsequently, the DSP within the main control unit executes a zero-point detection algorithm to locate the time point when the signal crosses zero from negative to positive within the digital sequences of the instantaneous AC current and AC voltage waveforms, respectively. The zero-point offset time difference is obtained by calculating the difference between these two location times. This process is performed at the initial stage of system startup, before exhaust gas is introduced and when the electrode network is in a clean and pollution-free state. Therefore, the calculated... This represents the inherent electrical characteristics of the system. The main control unit will be based on this. The calculated phase angle calibration is the initial intrinsic phase angle reference data. .

[0032] Zero offset time difference In a clean, pollution-free electric field environment, the time delay is determined by the capacitance between the electrodes and the capacitive-resistive composite load exhibited by the plasma itself. Under ideal load conditions, the current leads the voltage by 90 degrees, i.e. It is negative and its absolute value is equal to one-quarter of a period. In a real plasma environment, due to energy dissipation, the load exhibits capacitive-resistive characteristics, therefore... The absolute value is usually less than a quarter of a period. The initial intrinsic phase angle reference data calculated from this is... It is a digital fingerprint characterizing the electrical health of a clean electric field. It is set based on the assumption that the system is at its optimal operating point in the initial state, and any subsequent deviations in parameters due to contamination will be measured against this benchmark. The calculation formula is:

[0033] In the formula, This is the initial intrinsic phase angle reference data; This is the initial rated frequency; This is the zero-point offset time difference; π (pi). The calculated initial intrinsic phase angle reference data. The unit is radians (rad), and it is stored in non-volatile memory. The system enters closed-loop control state, and the main control unit fine-tunes the duty cycle or frequency of the main pulse carrier in real time through the PID controller to ensure that the phase angle monitored in real time is consistent with the initial intrinsic phase angle reference data, thereby maintaining efficient and stable plasma jet release and laying a stable working reference platform for subsequent exhaust gas treatment and pollution monitoring.

[0034] For example, in a specific implementation, the system's main control unit first instructs the dual-modal plasma acoustic-electric excitation source to generate and output the main pulse carrier at the set initial rated frequency. It is 80 kHz, and its period is At this time, no exhaust gas passes through the main exhaust gas treatment channel, and the surface of the working electrode network is clean.

[0035] The self-feedback impedance detection circuit network starts synchronously, and its built-in high-speed ADC acquires the instantaneous waveforms of AC voltage and AC current at a sampling rate of 20 MSPS. Using a zero-point detection algorithm running on the DSP, the acquired data is analyzed to determine that the rising edge zero of the instantaneous AC current waveform occurs at the timestamp within one cycle. At this point, the rising edge of the instantaneous AC voltage waveform zero appears at the timestamp. Place.

[0036] Based on this, the zero-point offset time difference is calculated. This negative value indicates that under this load condition, the current waveform leads the voltage waveform. The main control unit calls the formula to calculate the initial intrinsic phase angle reference data. Substituting the values, we can obtain The calculated result is approximately -46.08°, which is stored as a floating-point number in the controller's flash memory. The system then initiates a proportional-integral-derivative (PID) closed-loop control program, using -0.804 rad as the target setpoint, and begins to stably maintain the release of the plasma jet.

[0037] In one embodiment of the present invention, the pollution sensing and detuning triggering module is used to perform the following steps: The absolute deviation between the real-time phase shift difference and the initial phase angle reference data is calculated to generate the dynamic phase hysteresis angle; the dynamic phase hysteresis angle is identified when it successfully crosses the preset main circuit stability tolerance threshold; when the dynamic phase hysteresis angle crosses the preset main circuit stability tolerance threshold, the resonant balance state of the internal parasitic inductance structure of the acoustic-electric excitation source and the overall equivalent capacitance level of the working electrode network is changed; based on the change in the resonant balance state, a carrier frequency shift operation is performed on the main pulse carrier to generate a high-frequency acoustic oscillation distortion wave.

[0038] Specifically, after the initial intrinsic phase angle reference data is established and stabilized, the system enters the pollution sensing and detuning triggering module to continuously monitor the working status. As the drying exhaust gas containing high humidity and fine dust continuously flows through the working electrode network, the particulate matter and condensed water vapor in the exhaust gas are adsorbed and accumulated on the electrode surface, gradually forming a solid-liquid mixed impurity coating layer region. This impurity coating layer region is formed by tar, inorganic salt dust, and water molecules in the drying exhaust gas, resulting in a step increase in dielectric constant relative to the air reference value. For example, the relative dielectric constant... It also exhibits non-zero leakage current characteristics, for example, conductivity at... The semi-solid gel layer between.

[0039] The formation of this coating layer electrically alters the equivalent dielectric constant and parallel resistance between the electrodes, thereby generating a significant high-resistivity-capacitive resistance interference on the load impedance of the dual-mode plasma acoustic-electric excitation source. This interference increases the overall equivalent capacitance between the electrodes. The increase in resistance also increases the leakage path, leading to an equivalent parallel resistance. This decrease alters the overall load's phase characteristics. During this process, the self-feedback impedance detection circuit network continuously acquires real-time AC current and voltage waveforms, and the DSP within the main control unit continuously calculates the real-time zero-point offset time difference. This leads to the generation of real-time polarization phase shift difference. The calculation formula is as follows:

[0040] In the formula, This represents the real-time polarization phase shift difference. This is the initial rated frequency; This is the real-time zero-point offset time difference. The main control unit calculates the absolute deviation in the time dimension, i.e., the dynamic phase hysteresis angle, by comparing the real-time polarization phase shift difference with the stored initial intrinsic phase angle reference data. This included angle is a direct quantitative indicator of the degree of electric field pollution, and its calculation formula is as follows:

[0041] In the formula, The dynamic phase hysteresis angle; This represents the real-time polarization phase shift difference. This is the initial intrinsic phase angle reference data. The system internally has a preset critical threshold for main loop stability tolerance. The threshold This critical value is determined based on stability boundary experiments of the power supply topology. For example, it can be set to 20% to 30% of the absolute value of the initial intrinsic phase angle reference data. When the phase angle offset exceeds this critical range of 20% to 30%, the drastic change in the equivalent load impedance will cause the quality factor Q of the resonant circuit to decrease. At this time, even if the PID controller outputs an extreme duty cycle, it will not be able to pull the operating point back to the linear negative feedback adjustment range, and the system will inevitably slip into a nonlinear detuned state. When the dynamic phase hysteresis angle continues to increase due to increased pollution and crosses this limit value, it indicates that the load impedance offset has exceeded the normal adjustment range of the PID controller.

[0042] At this moment, the state does not trigger the normal shutdown protection. The reverse force of the short-circuit shock wave generated by the departure from the stable resonant point—that is, the violent power reflection and current surge—will severely disrupt the resonant balance of the inductor structure and the equivalent capacitance layer, where the center frequency of the resonant balance is 80 kHz. The aforementioned inductor structure... The distributed inductance, which is usually considered harmful in the design of power switching devices, such as pins, PCB traces, and internal connections, is cleverly utilized. Its value is usually between tens of nanohenries and several microhenries. And the overall equivalent capacitance layer This is the sum of the original capacitance of the clean plate and the additional capacitance of the solid-liquid mixed impurity coating area. This forced topological detuning causes the power circuit to enter a self-oscillating state, the oscillation frequency of which is determined by the current inductance and the equivalent capacitance increased due to contamination. When the system experiences topological detuning, the center frequency of this self-oscillation is generated. Determined by the following formula:

[0043] In the formula, The center frequency of the self-excited oscillation; This is the equivalent inductance value of the inductor structure; This is the equivalent capacitance value of the overall equivalent capacitance layer. Through pre-design of the circuit parameters, the new self-excited oscillation frequency falls within the expected frequency band, thereby causing a forced carrier frequency shift operation on part of the main pulse carrier, generating a frequency carrying 120... The acoustic oscillation distortion wave has the following frequency characteristics. This distortion wave is a non-sinusoidal electrical signal, and its spectral analysis results show that at 120... There is a significant energy peak at this frequency, which provides the energy source for subsequent acoustic cleaning.

[0044] For example, after the system has been running stably for a period of time, a solid-liquid mixed impurity coating layer begins to form on the surface of the working electrode network. The real-time zero-point offset time difference is measured by the self-feedback impedance detection circuit network. The value gradually deviates from the initial value; assuming a measurement value of -2.0 µs at a certain moment, the main control unit calculates the real-time polarization phase shift difference based on this. .

[0045] Calculate the dynamic phase hysteresis angle Assuming the system has a preset main loop stability tolerance threshold It is 0.2 rad. At this time, The triggering condition is met. Topological detuning occurs in the system's main power circuit. Assume that in this power supply design, the inductor structure... The equivalent value is 1.5 µH, while the equivalent capacitance layer caused by contamination at this time is... It has increased to approximately 1.17 µF. According to the formula, the center frequency of the self-excited oscillation is... Therefore, the stable 80 kHz main pulse carrier output of the dual-mode plasma acoustoelectric excitation source automatically transforms into the generation of a 120 kHz main pulse carrier. The acoustic oscillation distortion wave with the main frequency characteristics will be used as the input for the next step.

[0046] In one embodiment of the present invention, the sound energy conversion and guidance module is used to perform the following steps: The high-frequency acoustic oscillation distortion wave is extracted from the main pulse release path using a waveform gating and separation network structure. The extracted high-frequency acoustic oscillation distortion wave is then fed back into the hard metal lattice chain structure layer of the working electrode network. By exciting the same-frequency mechanical vibration transmission of atoms arranged in the hard metal lattice chain structure layer, the intrinsic parameters of the high-frequency acoustic oscillation distortion wave are converted into mechanical vibration energy waves. The mechanical vibration energy waves are bound and focused and continuously converged along the waveguide blind hole path pre-stamped in the electrode web layer. The mechanical vibration energy waves are guided to converge in the entire physical contact interface region, forming a high-frequency ultrasonic standing wave field covering the entire bottom surface in the physical contact interface region.

[0047] Specifically, when the dual-modal plasma acoustic-electric excitation source generates an acoustic oscillation distortion wave due to topological detuning, the system executes an acoustic energy conversion and guidance module. This composite waveform signal is guided into a dedicated waveform gating and separation network structure. This network can be implemented using a fourth-order Butterworth bandpass filter, with its passband range set to 115 kHz to 125 kHz to ensure efficient extraction of the target frequency and effective suppression of out-of-band signals. The center frequency of the target distortion wave fluctuates around 120 kHz, and a bandwidth of 10 kHz is set, meaning the 115-125 kHz range can accommodate frequency drift caused by slight changes in dirt thickness while also forming a steep roll-off characteristic to filter out the 80 kHz main carrier and its high-frequency harmonics, preventing irrelevant energy from falsely triggering the subsequent acoustic cleaning module. Through this network, the energy component with a characteristic frequency of 120 kHz in the acoustic oscillation distortion wave is extracted with high selectivity, while the residual components of the original 80 kHz main pulse carrier and noise in other frequency bands are significantly attenuated.

[0048] The separated pure high-frequency electrical signal is not released or dissipated, but is fed back into and connected to the metal lattice chain structure layer of the electrode network through a low-impedance feeding path. This is the metal substrate of the aforementioned working electrode network. The regular crystal structure of the metal substrate provides a medium for the low-loss propagation of sound waves. The feed point is usually selected at a predetermined position on the electrode, where one or more piezoelectric transducers or magnetostrictive elements are provided as electromechanical coupling interfaces.

[0049] When the 120 kHz electrical signal is applied to the transducer, electrical energy is converted into mechanical vibration energy of the same frequency through the inverse piezoelectric effect or magnetostriction effect. This vibration then excites the atoms arranged in the hard metal lattice chain structure layer, that is, the metal body of the electrode plate, to undergo a mechanical nematic oscillation transmission effect at the same frequency, thereby converting the intrinsic energy of the acoustic oscillation distortion wave with electrical characteristics into a mechanical vibration energy wave propagating in the solid medium, that is, a phonon flux.

[0050] To prevent the mechanical energy from dissipating randomly in all directions, waveguide blind holes are formed in the core layer of the working electrode during manufacturing using a stamping process. These waveguide blind holes are unpunctured pits, with a depth of approximately 10% to 30% of the electrode thickness. Their diameter and periodic spacing are calculated through simulation based on the sound velocity of the metal material used and the target frequency, to achieve the desired sound wave guiding and focusing effect. The 10% to 30% depth creates a strong acoustic impedance abrupt change on the electrode surface, constituting a phononic crystal bandgap to confine and focus the sound wave energy, without weakening the overall mechanical stiffness and strength of the electrode under high-pressure airflow impact due to excessive cutting depth. The depth, spacing, and arrangement of these blind holes constitute a phononic crystal or acoustic metamaterial structure, exhibiting bandgap and passband effects for 120 kHz mechanical waves.

[0051] The energy of the mechanical vibration energy waves is confined and focused, continuously converging and advancing along these pre-defined waveguide paths, much like light propagating in an optical fiber. At the bottom surface of the entire working electrode network, i.e., the physical contact boundary region closest to the target to be cleaned, mechanical waves from different paths interfere and superimpose, converging to form a high-frequency ultrasonic standing wave field with concentrated energy density covering the entire bottom surface. Here, high frequency refers to the 120 kHz frequency band. This energy field is a stable vibration mode formed by the reflection of the guiding wave within a finite boundary and its interference with the incident wave. Its energy is highly localized in the antinode region, providing concentrated mechanical energy for subsequent steps.

[0052] The aforementioned mechanical nematic oscillation transmission effect describes the phenomenon of collective vibrations of internal particles, such as atoms or atomic groups, under the influence of periodic driving forces in a metallic lattice, exhibiting consistent direction and phase correlation. In solid-state physics, mechanical vibration waves can be described as Lamb waves or surface acoustic waves, whose energy is transferred through the plates via elastic deformation. The high-frequency ultrasonic standing wave field formed by this is characterized by nodes with zero amplitude and antinodes with maximum amplitude in space, with the mechanical vibration kinetic energy and elastic potential energy localized in the antinode region.

[0053] For example, an acoustic oscillation distortion wave with a center frequency of 120.14 kHz is generated in the pollution sensing and detuning triggering module, and this signal is input to a waveform gating and separating network structure. This network is an LC filter, which is made to resonate around 120 kHz by configuring inductance and capacitance values, where, for example, the inductance value... and capacitance value The filter outputs a quasi-sinusoidal electrical signal with a peak value of 10 V, which is fed via cable to a piezoelectric ceramic plate soldered to the bottom of the working electrode network. The inverse piezoelectric coefficient of this piezoelectric plate... for The inverse piezoelectric coefficient is based on typical high-power emission piezoelectric ceramics in industry. This material's dielectric loss and electromechanical coupling coefficient under high voltage drive are suitable for continuous, high-power excitation of acoustic energy. Under the drive of a quasi-sinusoidal electrical signal, the piezoelectric element generates mechanical stretching vibrations of the same frequency, and couples these vibrations to a 3 mm thick 316L stainless steel electrode plate, forming a mechanical vibration energy wave.

[0054] The electrode's web is pre-stamped with waveguide blind holes 0.5 mm deep and 2 mm in diameter, arranged in a square lattice with a 5 mm spacing. For a transverse wave with a sound velocity of approximately 5900 m / s in stainless steel, 120.14 kHz corresponds to a wavelength of approximately 4.9 cm. Through the phononic crystal structure formed by this blind hole array, the sound wave energy is confined within the two-dimensional plane of the electrode and guided to the bottom surface where the electrode contacts the contaminant. Due to boundary reflection, a high-frequency ultrasonic standing wave field is formed on the bottom surface. Vibrational displacements up to tens of nanometers can be measured at the antinodes using a laser vibrometer, indicating that the concentrated mechanical energy is ready to activate the next step.

[0055] In one embodiment of the present invention, the valve group resonance and working fluid release module is used to perform the following operations: The high-frequency ultrasonic standing wave field is guided into the pressure-excited connection end face of the physical cleaning array; the microelectromechanical reed valve assembly firmware system encapsulated on the outer end of the physical cleaning array is transmitted through the touch stimulation; the microelectromechanical reed valve assembly firmware system carries a preset specific mechanical resonance frequency; the high overlap between the high-frequency ultrasonic standing wave field frequency and the preset specific mechanical resonance frequency induces the resonance yield strain tension field effect, driving the closed mechanical gap of the microelectromechanical reed valve assembly firmware system to continuously expand and buckle outward from tight locking.

[0056] Specifically, as the high-frequency ultrasonic standing wave field is stably established on the bottom surface of the working electrode network, the system connects to the valve group resonance and working fluid release module. The main actuator is hidden and nested and wrapped in insulating material, which can be polytetrafluoroethylene. The frequency-selective cleaning component is isolated from the high-voltage discharge environment. The passive characteristic of this array means that all its actions are driven by the input mechanical energy, requiring no external power supply or control signal lines, thus possessing environmental adaptability and safety.

[0057] Due to its propagation characteristics in the metal substrate of the electrode plate, the high-frequency ultrasonic standing wave field will continuously conduct with low loss and reach the pressure-excited connection end face of the cleaning array. This end face is usually a small piece of polished metal or hard ceramic, which forms a tight acoustic coupling with the metal substrate of the working electrode plate network through acoustic matching adhesive to minimize the energy reflection loss caused by acoustic impedance mismatch. Phonon energy can be transferred from the electrode plate to the cleaning array.

[0058] When the energy field stimulates and acts on the firmware system of the frequency-selective acoustically actuated microelectromechanical reed valve assembly through conduction and contact, the system enters the critical verification stage. The firmware system is a miniaturized device that integrates micromechanical structure, sensor and actuator.

[0059] During the design and manufacturing of this valve assembly firmware system, the core spring structure, such as a micro cantilever beam fabricated on single-crystal silicon through a deep etching process, has its geometric dimensions and material properties, such as Young's modulus, pre-defined to enable it to carry a mechanical resonant frequency. This frequency is the core identifying feature of this valve assembly, and its calculation formula is usually as follows:

[0060] In the formula, The preset specific mechanical resonant frequency; These are the geometric constants related to the boundary constraints of the cantilever beam; Young's modulus; Density; The thickness of the reed; For length. By adjusting and Its resonant frequency can be set. In the design, this frequency is calibrated to 120 kHz to achieve frequency matching with the center frequency of the acoustic distortion wave spontaneously generated when the system experiences severe pollution detuning, which is 120.14 kHz. Therefore, when the frequency of the externally introduced high-frequency ultrasonic standing wave field of 120 kHz highly coincides with this inherent resonant frequency, a mechanical resonance phenomenon will be induced.

[0061] This resonance effect causes the originally weak vibrational energy to accumulate rapidly within the reed structure, resulting in a vibration amplitude far exceeding the conventional response, thus generating a resonant yield strain tension field effect. It should be noted that the resonant yield strain tension field effect refers to the rapid attainment or exceedance of the elastic limit of the stress within the reed material at the resonant frequency, producing a visible and significant deformation, thereby constructing a fluid release channel.

[0062] Under the influence of this periodically changing tension field, the closed mechanical gap of the microelectromechanical reed valve assembly firmware system is forced to continuously expand and buckle. Under normal conditions, this gap is maintained in a tightly locked state by preload or intermolecular forces. This initial closed state is achieved by surface tension or van der Waals forces, or by a designed electrostatic preload to achieve high sealing performance.

[0063] This periodic buckling deformation eventually overcomes its original locking force, causing the closed mechanical gap to open outward from a tightly locked state, forming a dynamic microchannel through which fluid can pass, thereby connecting the high-pressure fluid release channel of the pre-pressurized gas-liquid mixture in the inner cavity, i.e., the microfluidic pipeline connecting the rear end of the valve group to the high-pressure gas-liquid mixture storage tank.

[0064] For example, the high-frequency ultrasonic standing wave field stably formed in the sound energy conversion and guidance module concentrates its energy on the bottom surface of the working electrode network. This sound field transmits mechanical vibrations to the frequency-selective cleaning component through a sapphire sound transmission column with a diameter of 5 mm as the pressure-excited connection end face. The array internally encapsulates a microelectromechanical reed valve assembly firmware system, the core of which is a silicon-based cantilever beam structure with a length of 200 µm, a width of 50 µm, and a thickness of 2.5 µm. Based on its material properties, silicon's Young's modulus... ,density In terms of geometry and engineering design, its preset specific mechanical resonant frequency falls at 120 kHz.

[0065] When an acoustic energy field with a frequency of 120.14 kHz is input, the reed enters a resonant state due to a frequency deviation of less than 0.2%, and the amplitude of its free end amplifies from a static zero to approximately 10 µm. This reciprocating motion of the amplitude generates a resonant yield strain tension field effect, causing the closed mechanical gap of less than 10 nm between the reed and the valve seat, which was originally maintained by molecular forces, to be opened. The periodic opening of the gap forms a dynamic fluid channel, connecting to a storage tank at a pressure of 5 MPa downstream of the valve assembly. Preferably, the microelectromechanical reed valve assembly firmware system is equipped with a pressure balance bypass structure to counteract the back pressure damping generated by the gas-liquid mixed cleaning agent, thereby ensuring that the resonance of the reed triggered by the ultrasonic standing wave field is not easily suppressed by the high pressure of the fluid. The high-pressure fluid release channel is successfully constructed, preparing for the next step of high-pressure jet cleaning.

[0066] In one embodiment of the present invention, the jet blasting and dirt removal module is used to perform the following steps: A pre-set gas-liquid mixed cleaning agent flows through capillary release pores under high-speed, strong vibration; the pre-set gas-liquid mixed cleaning agent is injected into the acoustic excitation restricted area; based on the ultrasonic cavitation effect generated by the superposition of high-frequency ultrasonic standing wave fields, the gas-liquid mixed cleaning agent is transformed into a gas-liquid mixed atomized jet; the gas-liquid mixed atomized jet is controlled to collide with the micro-capillary gaps in the impurity coating layer area, and cavitation explosive impact force is generated based on the jet burst phase change vaporization volume generated by the gas-liquid mixed atomized jet, and the impurity coating layer area is peeled off by the cavitation explosive impact force.

[0067] Specifically, after the high-pressure fluid release channel is constructed in the valve group resonance and working fluid release module, the system executes the jet blasting and dirt removal module. Because the valve port of the microelectromechanical reed valve assembly firmware system is forcibly opened, the internal and external pressure difference causes the gas-liquid mixture cleaning agent originally stored in the tank to lose pressure and surge outwards. This cleaning agent is typically a mixture of deionized water and a small amount of nonionic surfactant, such as polyoxyethylene ether, and is pressurized with high-pressure nitrogen to enhance its atomization effect and penetration capability.

[0068] The cleaning fluid is forcibly propelled through capillary release pores that vibrate at high speeds of 120,000 times per second. The equivalent diameter of these pores ranges from sub-micrometers to several micrometers, depending on the amplitude of the reed, i.e., the dynamic microchannels formed by the reed resonance within the valve assembly and the working fluid release module. This process injects the fluid into a high-energy-density acoustic agitation zone, where the acoustic energy density can reach several megawatts per square meter, providing the necessary conditions for cavitation. This zone is also the micrometer-scale space between the reed and the valve seat, which remains continuously connected due to resonance.

[0069] Within this restricted area, the high-frequency ultrasonic standing wave field violently couples with the high-speed flowing fluid. Based on the ultrasonic cavitation effect generated by the superposition of the sound field energy, droplets in the high-speed flowing gas-liquid mixture of cleaning agents are transiently torn apart.

[0070] Among them, ultrasonic cavitation effect refers to the complex energy conversion and release network formed by the interconnected and mutually influential processes of the generation, growth, oscillation and collapse of countless cavitation bubbles in the sound field.

[0071] Specifically, the negative pressure phase of the sound field causes the formation of tiny vacuum bubbles in the liquid. These vacuum bubbles are then compressed and collapse rapidly in the subsequent positive pressure phase. This process generates localized high-temperature and high-pressure points and powerful shock waves at the microscopic scale, thereby disintegrating the original droplet molecular layer into nanoscale gas-liquid mixed atomized jets with internal static pressures of approximately 100 MPa (hundreds of megapascals). The excited nanoscale gas-liquid mixed atomized jets can reach speeds of hundreds of meters per second. Although the kinetic energy they carry is not large on a macroscopic scale, the impact force on individual dirt particles at the microscopic scale is enormous. The jet burst phase change is one of the core physical mechanisms of this cleaning method. It utilizes the principle of rapid volume increase during phase change to convert the potential energy of the liquid into mechanical work on the dirt.

[0072] These newly generated nanoscale particle clusters are forced out in jet form at speeds of 300-400 m / s, achieved by the aforementioned jet burst phase transition. They penetrate and collide along the shortest path into the microcapillary gaps of the solid-liquid mixed impurity coating area. When these high-energy nanoparticle jets impact and penetrate the microporous structure of the dirt, due to the jet burst phase transition—the sudden volume expansion and vaporization phenomenon that occurs when high-pressure nanodroplets come into contact with a solid surface under normal pressure—each particle becomes an endogenous cavitation burst impact force. This endogenous cavitation burst impact force describes the cleaning force acting inside the dirt, rather than traditional external rinsing, thus exhibiting a unique peeling effect on complex and highly adhesive contaminants. Countless such thrust points act simultaneously on the bottom layer of the dirt, generating internal explosive force that shatters the entire solid-liquid mixed impurity coating area into powder fragments, causing them to disintegrate and physically peel off from the metal adsorption surface, thereby completing the bottom layer cleaning.

[0073] For example, the release channel opened in the valve assembly resonance and working fluid release module allows the gas-liquid mixture cleaning agent stored at 5 MPa pressure to begin flowing out. This cleaning agent flows at approximately 300 m / s through the valve plate resonance, forming capillary release pores with an equivalent cross-sectional area of ​​50 µm². During this process, the fluid enters the acoustic excitation core forbidden zone, where the sound pressure level reaches 210 dB. Such high sound intensity activates tiny gas nuclei in the liquid, causing them to rapidly expand and form cavitation bubbles with a diameter of approximately 5 µm.

[0074] During the next compression half-cycle of the 120.14 kHz sound field, these cavitation bubbles collapse in less than 4 µs. At the moment of collapse, their internal temperature reaches 5000 K and pressure reaches 100 MPa—typical theoretical physical parameters in ultrasonic cavitation dynamics. Under alternating negative and positive pressure in the strong sound field, the adiabatic collapse of the cavitation bubbles instantly converts mechanical energy into thermal and impact energy within a microscopic space, creating a localized, extremely high-temperature and high-pressure microenvironment. This microscopic explosion tears apart and accelerates the surrounding liquid, forming a nanoscale gas-liquid mixed atomized jet with an average diameter of 50 nm and a velocity as high as 400 m / s.

[0075] The jet stream was sprayed onto the surface of the solid-liquid mixture impurity coating area, located only 200 µm from the valve orifice. Assuming this coating layer is a 100 µm thick mixture of tar and dust, the nanoscale gas-liquid atomized jet penetrates its surface and undergoes a jet burst phase transition within its internal microcracks. Each 50 nm droplet vaporizes and expands thousands of times in volume. Under the action of the jet stream for less than 1 second, the entire layer of dirt is shattered into micron-sized dry powder particles, which are then peeled off and blown away from the working electrode network surface, carried away by the exhaust gas flow, and the electrode surface is restored to cleanliness.

[0076] In one embodiment of the present invention, the feed tuning and vibration cessation interlocking module is used to perform the following steps: The system detects the gradient decline and abrupt drop in the apparent total physical mass of the working electrode network as the exhaust gas carries the residue of the solid-liquid mixture that has been washed away and pulverized from the coating layer area out of the dust removal control duct zone. It captures the three-dimensional spatial displacement coordinate difference group of the global structural rigidity and acoustic-mechanical resonance nodes caused by the continuous loss of overall adsorbed mass. It organizes and calculates the dynamic acoustic mass load reduction coefficient parameter corresponding to the three-dimensional spatial displacement coordinate difference group. It inputs the mass load reduction coefficient into the physical deduction and reverse conversion mapping calculation module in the preset inverse piezoelectric and photoelectric feedback closed loop to generate a compensation analog electrical signal. The compensation analog electrical signal is fed back to the main control drive layer of the acoustic-electric excitation source, and the frequency spectrum center of the high-frequency distortion wave is shifted according to the compensation analog electrical signal.

[0077] Specifically, after the jet blasting and dirt removal module completes the shattering and physical removal of the coating layer area through the cavitation tearing jet blasting procedure, the system enters the feedback and adjustment phase. As the residue in the washed-out coating layer area flows out of the dust removal control duct area with the exhaust gas flow, the total physical mass attached to the surface of the working electrode network undergoes a gradient decline and a sudden drop.

[0078] This change in mass alters the inherent properties of the working electrode network as a whole mechanical vibration system. At this point, the system uses one or more micro-piezoelectric ceramic sheets or fiber Bragg grating sensors integrated on the electrode support structure to sense and capture in real time the difference in three-dimensional spatial displacement coordinates of the global structural rigidity and acoustic-mechanical resonance nodes caused by the continuous loss of total adsorbed mass. Preferably, when using fiber Bragg grating sensors, the captured optical wavelength drift signal needs to be converted into a voltage signal recognizable by the main control unit through a preset photoelectric demodulator, and then input to the physical deduction and inverse transformation mapping calculation module for processing. The gradient descent and steep drop here describe the dynamic process of rapid reduction of mass load in a short time; while the difference in three-dimensional spatial displacement coordinates of the global structural rigidity and acoustic-mechanical resonance nodes is a physical description of the changes in mechanical properties caused by the mass change, the underlying physical principle of which is the mass load effect.

[0079] Specifically, the unloading of mass causes an increase in the natural vibration frequency of the plates, and a slight spatial shift in the positions of nodes and antinodes in the standing wave field. Sensors capture these subtle changes and convert them into corresponding electrical or optical signals. Subsequently, the signal processor in the main control unit processes and calculates these signals to derive a dynamic acoustic mass load reduction coefficient parameter that is correlated with the amount of mass change. This parameter is a normalized dynamic variable, and its calculation formula can be defined as:

[0080] In the formula, Reduce the coefficient parameter for dynamic acoustic mass load; It is the real-time measurement of the electrode's natural frequency offset; It is theoretically the largest frequency shift from a dirty to a clean state. By introducing and With the limiting function constraint, the system can forcibly filter out overshoot data caused by environmental noise or abnormally severe pollution, ensuring... The value is always locked within the closed interval [0,1]. The value changes from 0 to 1, representing the cleaning process from start to finish. This coefficient... It is a dimensionless value that reflects the completion of the cleaning process in real time and avoids the risk of subsequent control voltage exceeding the limit from the algorithm level.

[0081] By invoking the inverse piezoelectric and photoelectric feedback closed-loop circuit, the core of which is the physical deduction and reverse conversion mapping calculation module, which is an algorithm embedded in an FPGA or integrated circuit ASIC, can map changes in non-electrical physical quantities into control signals. It reduces the coefficient parameter based on the input dynamic acoustic mass load. Using a preset lookup table or mathematical model, the analog electrical signal used to compensate and adjust the power supply output is calculated in real time. This signal can be derived from built-in mappings, such as simplified linear expressions:

[0082] In the formula, The generated compensated analog electrical signal is measured in volts (V). To reduce the coefficient parameter for dynamic acoustic mass load, it is a dimensionless pure scalar; The voltage compensation mapping coefficient is expressed in volts (V). This compensation analog electrical signal is fed into the gate layer of the master IGBT in the dual-mode plasma acoustic-electric excitation source. The function of this signal is to adjust the amplitude or bias of the gate drive voltage, thereby changing the nonlinear characteristics of the power circuit and causing the spectral center of the acoustic oscillation distortion wave to shift to a higher frequency direction.

[0083] along with The change in the value, i.e., the improvement in cleanliness, leads to an increase in the frequency deviation. This, combined with the physical effect of the natural decrease in the overall equivalent capacitance of the electrode due to dirt removal, ultimately shifts the oscillation frequency center to the right, withdrawing it from the inherent mechanical resonant band of 120 kHz that can excite valve group resonance. This range refers to a narrow frequency band centered at 120 kHz, such as 119.5 kHz to 120.5 kHz. This narrow bandwidth is determined by the inherent quality factor (Q) characteristic of the microelectromechanical silicon-based cantilever beam structure. Only when the external excitation frequency falls strictly within this resonant envelope with a deviation of less than ±0.5% can efficient coupling and amplification of mechanical kinetic energy be achieved; a slight deviation in frequency results in an exponential decay in the response, thus ensuring high selectivity in valve control.

[0084] For example, after the jet blasting and dirt stripping process is completed, assume that a 15 g layer of solid-liquid mixed impurities adhering to the working electrode network is peeled off. This removal of mass causes the fundamental frequency of the electrode to increase from 115.3 Hz to 115.5 Hz, and this 0.2 Hz frequency change is captured by the embedded piezoelectric sensor.

[0085] The system is pre-calibrated so that the total change in fundamental frequency from a fully loaded state to a clean state is 0.25 Hz. Therefore, the processor calculates the current dynamic acoustic mass load reduction factor parameter. At this point, the physics deduction and reverse transformation mapping calculation module calculates the mapping relationship stored internally. Among them, voltage compensation mapping coefficient The value is 5V. The selection of 5V is to match the full-scale range of the standard analog control input level of the IGBT gate drive circuit or digital signal processor, which is 0-5V. This allows the internal dimensionless normalized cleanliness coefficient to be converted into a bias control voltage that can be recognized by the electrical hardware, generating a +4.0V compensated analog electrical signal.

[0086] The signal is applied to the bias input of the main control IGBT. This positive bias voltage improves the switching response speed of the main control circuit, which is equivalent to reducing the parasitic charging and discharging delay of the system, thereby changing the conditions for self-excited oscillation. This causes the spectral center of the acoustic oscillation distortion wave to shift to the right starting from 120.14 kHz. As the remaining small amount of dust is blown away, As the value continues to increase to near 1.0, the resulting compensation voltage also approaches +5.0 V, eventually raising the oscillation frequency to 125.0 kHz. This frequency has significantly deviated from the valve assembly's inherent mechanical resonant band, for example, set to 119.5 kHz–120.5 kHz, thus creating conditions for the next step of valve assembly closure.

[0087] In one embodiment of the present invention, the state recovery and electric field reconstruction module is used to perform the following steps: When the spectral center offset of the high-frequency distorted wave exceeds the mechanical strain tolerance threshold corresponding to the consolidation mechanical resonant frequency, the fatigue tensile stress applied to the reed valve assembly firmware system is removed; the pre-stored mechanical compression internal energy inside the reed valve assembly firmware system is released, controlling the reed valve assembly firmware system to spring back and construct a fluid cutoff structure, which cuts off the fluid release channel; the liquid molecule volatilization state data and spatial dielectric constant characteristic value around the working electrode network are acquired; when the liquid molecule volatilization state data and spatial dielectric constant characteristic value meet the preset conditions, the main pulse carrier is re-injected into the working electrode network to generate a deodorization ionization field network.

[0088] Specifically, after the oscillation frequency is shifted through feedback adjustment, the system eventually enters the recovery and reconstruction phase. The main control unit first verifies the shock wave frequency shift vector actually generated after being controlled by the inverse piezoelectric and photoelectric feedback closed loop. This shift vector is a vector describing the frequency change over time, with its magnitude representing the magnitude of the frequency shift and its direction representing the direction of the shift.

[0089] Spectral analysis confirmed that its center frequency, for example, 125.0 kHz, exceeded the maximum mechanical strain tolerance threshold of the material, which is the preset specific mechanical resonant frequency of 120 kHz provided by the microelectromechanical reed valve assembly firmware system. This strain tolerance threshold reflects the device's Q value, which maintains the effective excitation frequency range for resonance. Once the excitation frequency deviates from this range, a high Q value is exhibited, meaning an extremely narrow resonant bandwidth, and even a slight frequency deviation leads to a sharp drop in response. The energy accumulation effect within the reed structure disappears, and the amplitude decays rapidly, thus successfully removing the periodic fatigue tensile stress that forced the microelectromechanical reed valve assembly firmware system to open.

[0090] Based on this, the microelectromechanical reed valve assembly firmware system is activated and begins to perform autonomous springback operation. This operation relies on the mechanical compressive internal energy pre-stored in its special alloy body during design and manufacturing. This internal energy is the pre-stress formed inside the material during the manufacturing of the reed through processes such as stress control by thin film deposition or ion implantation.

[0091] When the external resonant excitation disappears, this internal stress can be released, driving the reed structure to autonomously and rapidly spring back to its initial closed position within microseconds. This action creates a highly sealed and rigidly detuned fluid cutoff structure, thereby physically cutting off all pipelines from the flushing consumables, i.e., the source of the gas-liquid mixture, to the discharge field.

[0092] After the cleaning fluid injection stops, the system will have a brief waiting and detection period. During this period, one or more temperature and humidity sensors and dielectric sensors located near the working electrode network will continuously detect the complete evaporation and drying of liquid molecules around the electrodes and the stable recovery of the spatial dielectric constant at the mesoscopic level without any abnormalities. These characteristic values ​​are the final basis for determining whether the post-cleaning environment is suitable for resuming high-voltage discharge. This is achieved by monitoring the changes in the capacitance value between the electrodes. When the capacitance value recovers to within ±1% of the initial value, the environment can be considered qualified.

[0093] Once it is confirmed that the residual moisture has completely evaporated and the spatial dielectric constant has recovered to near the initial value calibrated in the reference establishment and stabilization module, the main control unit restarts the dual-mode plasma acoustic-electric excitation source. The power supply then resumes its initial operating mode, delivering an 80 kHz main pulse carrier with a constant duty cycle. Based on this, the system again utilizes the reference establishment and stabilization module method, using the current clean electrode state as a benchmark, to re-establish a pure-state deodorization ionization field network for the exhaust gas that reaches the rated discharge power and covers the entire effective area of ​​the electrode. The entire closed-loop process of intelligent monitoring and automatic cleaning is thus completed, and the system returns to its initial state of highly efficient exhaust gas treatment.

[0094] For example, in the feedback tuning and vibration cessation interlocking module, the frequency of the acoustic oscillation distortion wave has stabilized at 125.0 kHz. Spectrum monitoring by the main control unit confirms that this frequency exceeds the 120.5 kHz response limit of the microelectromechanical reed valve assembly firmware system, i.e., exceeds the material's maximum mechanical strain tolerance threshold. Therefore, the periodic tensile stress applied to the reed disappears. The approximately 50 MPa of residual compressive stress pre-stored inside the reed is released, driving it to rebound and tightly adhere to the valve seat within 5 µs, forming a fluid cutoff structure, and the supply of the gas-liquid mixed cleaning agent at a pressure of 5 MPa is cut off.

[0095] Subsequently, the system entered a 3-second waiting period. During this period, the humidity sensor reading dropped from 95% RH to 40% RH of the ambient exhaust gas. By measuring the capacitance between the plates, it was found that the value, which was 1.17 μF at the time of pollution, briefly peaked after cleaning and eventually stabilized at 0.92 μF. This value deviated by less than 1.5% compared with the initial clean capacitance value of 0.91 μF set by the baseline and stabilization module. The system determined that the environment had returned to dryness and cleanliness.

[0096] The main control unit then issues a command, stopping the dual-mode plasma acoustic-electric excitation source from its self-excited oscillation mode and switching back to PWM control mode. It then regenerates and outputs a stable main pulse carrier with a frequency of 80 kHz. High voltage is applied to the clean electrodes, and a bright blue-violet glow discharge evenly fills the entire electrode gap. A highly efficient waste gas purification ionization field network is successfully rebuilt, and the system resumes normal deodorization operation, awaiting the next round of pollution accumulation and triggering.

[0097] Each of the modules can be implemented in whole or in part through software, hardware, or a combination thereof. It supports hardware embedded in or independent of the processor in the computer device, and also supports software stored in the memory of the computer device, so that the processor can call and execute the operations corresponding to each of the above modules.

[0098] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A smart monitoring and automatic cleaning system for plasma deodorization electric field in drying waste gas, characterized in that, include: The benchmark establishment and stabilization module uses a dual-mode plasma acoustic-electric excitation source to inject the main pulse carrier into a fixed working electrode network and calculates the zero-point offset time difference to calibrate the initial intrinsic phase angle benchmark data. The pollution sensing and detuning triggering module acquires the real-time polarization phase shift difference formed by the adsorption of waste gas on the working plate network, and calculates the dynamic phase hysteresis angle by combining the initial intrinsic phase angle reference data, triggering detuning to generate high-frequency acoustic oscillation distortion waves. The acoustic energy conversion and guidance module feeds high-frequency acoustic oscillation distortion waves into the working electrode network and converts them into mechanical vibration energy waves, generating a high-frequency ultrasonic standing wave field. The valve assembly resonance and working fluid release module uses a high-frequency ultrasonic standing wave field to excite the resonance of a preset microelectromechanical reed valve assembly firmware system, thereby connecting the high-pressure fluid release channel. The jet blasting and dirt removal module guides a preset gas-liquid mixed cleaning agent through a high-pressure fluid release channel. Under the action of a high-frequency ultrasonic standing wave field, a gas-liquid mixed atomized jet is generated to remove the solid-liquid mixed impurity coating layer area. The feedback tuning and vibration cessation interlocking module captures the spatial displacement coordinate difference group caused by stripping, calculates the dynamic acoustic mass load reduction coefficient parameter, generates a compensation analog electrical signal to force high-frequency acoustic oscillation distortion wave frequency offset, and generates shock wave frequency offset vector. When the shock wave frequency offset vector exceeds the preset strain tolerance threshold, the microelectromechanical reed valve assembly firmware system cuts off the preset gas-liquid mixture cleaning agent and resumes the transmission of the main pulse carrier in the state recovery and electric field reconstruction module.

2. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, Calculating the initial intrinsic phase angle reference data for zero-point offset time difference calibration includes the following steps: The self-feedback impedance detection circuit network embedded in the peripheral nodes of the working electrode network is invoked to simultaneously extract the instantaneous waveforms of AC current and AC voltage flowing through the output interface of the dual-mode plasma acoustic-electric excitation source. Calculate the zero-point offset time difference between the instantaneous waveform of AC current and the instantaneous waveform of AC voltage; The initial intrinsic phase angle reference data representing the state without large-area adhesion contamination was determined based on the zero-point offset time difference.

3. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, Triggering detuning to generate high-frequency acoustic oscillation distortion waves includes the following steps: The dynamic phase hysteresis angle is generated by calculating the absolute deviation between the real-time phase shift difference and the initial phase angle reference data. The dynamic phase hysteresis angle was successfully identified and crossed the preset main circuit stability tolerance threshold. When the dynamic phase hysteresis angle crosses the preset critical threshold of the main circuit stability tolerance, it changes the resonant balance state of the internal parasitic inductance structure of the acoustic-electric excitation source and the overall equivalent capacitance level of the working electrode network. Based on the change in the resonant equilibrium state, a carrier frequency shift operation is performed on the main pulse carrier to generate a high-frequency acoustic oscillation distortion wave.

4. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, The process of feeding high-frequency acoustic oscillation distortion waves into a fixed working electrode network and converting them into mechanical vibration energy waves includes the following steps: The high-frequency acoustic oscillation distortion wave is extracted from the main pulse release path by using a waveform gating and separation network structure; The extracted high-frequency acoustic oscillation distortion wave is fed back into the hard metal lattice chain structure layer of the working electrode network; By exciting the transmission of co-frequency mechanical vibrations of atoms arranged in a hard metal lattice chain structure layer, the intrinsic parameters of high-frequency acoustic oscillation distortion waves are converted into mechanical vibration energy waves.

5. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, Generating a high-frequency ultrasonic standing wave field includes the following steps: The mechanical vibration energy wave is bound and focused and continuously converges along the waveguide blind hole path pre-stamped in the polar plate web; Guide the mechanical vibration energy waves to converge throughout the entire physical contact interface area; A high-frequency ultrasonic standing wave field covering the entire bottom surface is formed in the physical contact boundary region.

6. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, The process of using a high-frequency ultrasonic standing wave field to excite the resonance of a pre-set microelectromechanical reed valve assembly firmware system includes the following steps: The high-frequency ultrasonic standing wave field is guided into the pressure-excited connection end face of the physical cleaning array; A microelectromechanical reed valve assembly firmware system encapsulated at the outer end of a physical cleaning array by transmitting touch stimulation; Verify that the microelectromechanical reed valve assembly firmware system carries a preset specific mechanical resonant frequency; The high frequency of the ultrasonic standing wave field coincides with the preset specific mechanical resonance frequency, which generates a resonant yield strain tension field effect, driving the closed mechanical gap of the microelectromechanical reed valve assembly firmware system to continuously expand and buckle outward from tight locking.

7. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, The process of generating a gas-liquid mixed atomized jet through a high-frequency ultrasonic standing wave field to peel off the solid-liquid mixed impurity coating layer area includes the following steps: The pre-set gas-liquid mixed cleaning agent flows through the capillary release pores under high-speed, strong vibration conditions; Inject the pre-set gas-liquid mixture cleaning agent into the acoustically agitated restricted area; Based on the ultrasonic cavitation effect generated by the superposition of high-frequency ultrasonic standing wave fields, the gas-liquid mixed cleaning agent is converted into a gas-liquid mixed atomized jet. The gas-liquid mixed atomized jet is controlled to collide with the micro-capillary gaps in the impurity coating area. Based on the jet burst phase change vaporization volume generated by the gas-liquid mixed atomized jet, cavitation burst impact force is generated, and the impurity coating area is peeled off by the cavitation burst impact force.

8. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, The calculation of the dynamic acoustic mass load reduction factor parameter by capturing the spatial displacement coordinate difference group caused by stripping includes the following steps: The gradient decline and abrupt drop of the apparent physical mass of the working electrode network during the flow of residual solid-liquid mixture impurities carried by the exhaust gas out of the dust removal control duct area are observed. Capture the group of three-dimensional spatial displacement coordinate differences of global structural rigidity and acoustic-mechanical resonance nodes caused by the continuous loss of overall adsorption mass; The dynamic acoustic mass load reduction coefficient parameter corresponding to the three-dimensional spatial displacement coordinate difference group was calculated.

9. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 8, characterized in that, Generating a shock wave frequency offset vector by forcing high-frequency acoustic oscillation distortion using a compensated analog electrical signal includes the following steps: The mass load reduction factor is input into the physical deduction and reverse conversion mapping calculation module in the preset inverse piezoelectric and photoelectric feedback closed loop to generate a compensated analog electrical signal. The compensation analog electrical signal is fed back to the main control driving layer of the acoustic-electric excitation source, and the frequency spectrum center of the high-frequency distortion wave is shifted according to the compensation analog electrical signal.

10. The intelligent monitoring and automatic cleaning system for plasma deodorization electric field of drying waste gas according to claim 1, characterized in that, Resuming the transmission of the main pulse carrier includes the following steps: When the spectral center offset of the high-frequency distorted wave exceeds the mechanical strain tolerance threshold corresponding to the consolidation mechanical resonant frequency, the fatigue tensile stress applied to the reed valve assembly firmware system is removed. Release the pre-stored mechanical compression energy inside the reed valve assembly firmware system, control the reed valve assembly firmware system to spring back and construct a fluid cut-off structure, and cut off the fluid release channel through the fluid cut-off structure; Data on the volatile state of liquid molecules and the spatial dielectric constant characteristic value around the working electrode network are obtained. When the data on the volatile state of liquid molecules and the spatial dielectric constant characteristic value meet the preset conditions, the main pulse carrier is re-injected into the working electrode network to generate a deodorizing electroionization field network.

Images