723results about "Electric supply techniques" patented technology

An automatic control method and system for an electrostatic precipitation system. The method combines a neural network control algorithm with a PID regulation control algorithm, and uses the neural network control algorithm to carry out preprocessing on the control of the electrostatic precipitation system and uses the PID regulation control algorithm to carry out initialization processing when the electrostatic precipitation system is out of control, thereby avoiding the uncontrollable state of the electrostatic precipitation system caused by PID control overshoot or oscillation; moreover, the PID regulation control algorithm is used to carry out real-time tracking regulation on the electrostatic precipitation system, so that the real-time response speed of intelligent control of the electrostatic precipitation system can be effectively increased. Therefore, the energy conservation and efficiency improvement of the electrostatic precipitation system are better realized while the operation stability and response rapidness of an electric precipitator are ensured and controlled. By combining the two control algorithms, once intelligent control is used, the automatic control method effectively prevents the electrostatic precipitation system from being temporarily out of control due to excessive overshoot, thereby ensuring the stable operation of the electrostatic precipitation system, and implementing intelligent control.

The invention relates to a coal-fired unit electrostatic dust collection energy-saving optimization method, system and equipment and a storage medium, and the method comprises the steps: obtaining historically collected system operation data of a coal-fired unit electrostatic dust collection system, and constructing an outlet NOx concentration prediction model and an outlet dust concentration dynamic model according to the system operation data; power optimization control strategies of high-voltage power supplies of all levels of electric fields in the dust removal system are obtained, a model is built based on the outlet NOx concentration prediction model, the outlet dust concentration dynamic model and the optimization control strategies, and an electrostatic dust removal energy-saving optimization model is obtained; acquiring a preset environment-friendly standard concentration, and analyzing the environment-friendly standard concentration through the electrostatic dust collection energy-saving optimization model to obtain an optimal dust collection parameter; and adjusting the current or voltage of each level of electric field in the dust removal system according to the optimal dust removal parameters. Through the constructed energy-saving optimization model, the electrostatic dust collection control system can reduce the dust emission concentration and meet the pollutant emission standard, and meanwhile, the energy consumption of the electric dust collector can be greatly reduced.

The invention relates to an electrostatic filtering device. The electrostatic filtering device comprises a plurality of positive electrode plates and a plurality of negative electrode plates. At least one first electrode plate exists in the plurality of positive electrode plates and the plurality of negative electrode plates, and the first electrode plate is formed by wrapping a conductive material with a high-resistance material or an insulating material. The at least one first electrode plate is configured to lead out the internal conductive material at and / or near at least one support structure fixation location of the first electrode plate such that there is exposed conductive material at that location. Moreover, if the two adjacent electrode plates are both first electrode plates and have exposed conductive materials, the distance between the exposed conductive materials of the two adjacent electrode plates in the direction perpendicular to the distance between the electrode plates is larger than or equal to the minimum distance between the electrode plates. Therefore, the problem that the performance is obviously reduced under the condition that the supporting structure (especially an insulating supporting structure) is polluted can be solved, meanwhile, the purpose of enhancing the dust holding capacity of the filter can be achieved, and the intensity of an electric field which can be applied between the electrodes is not influenced.

The present disclosure relates to an electrostatic precipitation device. The electrostatic dust collection device comprises a plurality of positive electrode plates and a plurality of negative electrode plates, the positive electrode plates and the negative electrode plates are alternately arranged at intervals, the positive electrode plates are communicated with the positive electrode of the high-voltage power supply, and the negative electrode plates are communicated with the negative electrode of the high-voltage power supply. At least two adjacent electrode plates are formed by wrapping conductive materials with insulating materials, at least one of the two adjacent electrode plates is provided with exposed conductive materials, the exposed conductive materials are located in an effective working area or located outside the effective working area, and the distance between the exposed conductive materials and the effective working area is smaller than or equal to 10 mm. If the two adjacent electrode plates both have exposed conductive materials, the distance between the exposed conductive materials on the two adjacent electrode plates in the direction perpendicular to the distance between the electrode plates is larger than or equal to the minimum distance between the electrode plates, and the effective working area refers to an area which is located between the two adjacent electrode plates and through which unpurified gas can flow. Therefore, normal operation can be ensured when high voltage is applied to the conductive materials of the adjacent electrodes, and meanwhile, the long-term operation efficiency of the electrostatic dust collection device can be well maintained.

The embodiment of the invention provides an intelligent electric precipitation system. The intelligent electric precipitation system comprises a power management module, a working condition sensing module, a dynamic optimization module and a cooperative control module, the power supply management module comprises a high-frequency power supply unit and a power-frequency power supply unit, and the high-frequency power supply unit adopts a full-bridge series-parallel hybrid resonance circuit; the working condition sensing module is configured with a distributed sensor network; the dynamic optimization module establishes a multi-objective optimization model; the cooperative control module realizes a four-level control architecture; the system realizes optimal balance of dust removal efficiency and energy consumption by collecting working condition parameters in real time and dynamically adjusting working parameters of a power supply. According to the intelligent electric dust removal system, through a hybrid power supply framework, a multi-sensor network and four-stage cooperative control, the dust removal efficiency is improved, and the equipment reliability and the intelligent level are improved.

Filter unit 1 with a power supply 20, a spray electrode 15, and a filter medium 115, which is arranged between a first electrode 110 and a second electrode 120, wherein the first electrode 110 is arranged between the spray electrode 15 and the second electrode 120, the power supply 20 has a spray electrode output 28 and a further output 29, the power supply 20 is configured to provide an ionization current I ion to be handed over, as well as a voltage U ion Providing the connection between the spray electrode output 28 and the further output 29 can be made particularly advantageous if the first electrode 110 and the second electrode 120 are connected in parallel to each other at the further output 29 of the power supply 20.

Provides a dust collector capable of being installed even in small spaces and capable of collecting dust efficiently. A dust collector 1 includes a first electrode layer 12 formed of a conductor, a second electrode layer 14 formed of a conductor, having sufficient size to cover the first electrode layer 12 in planar view, having lacking parts (through holes 14H, slits 14S) piercing therethrough in a thickness direction, having sufficient size to cover the first electrode layer 12 in planar view, and placed interfacing the first electrode layer 12, and an insulating layer (a first insulating layer 13, a second insulating layer 15) formed of an insulative material, insulating the first electrode layer 12 and the second electrode layer 14, and forming a single merged layer structure with the first electrode layer 12 and the second electrode layer 14.

The utility model belongs to the field of dust removal and environmental protection of a coal-fired power plant, and particularly relates to a pre-charged adjustable high-voltage wire inlet system of an electric precipitator, which comprises a pre-charged device and a wall bushing which are arranged at the front end of the electric precipitator, the pre-charged device is provided with a high-voltage power supply, and the high-voltage power supply is provided with a double-switch disconnecting link and is connected with an insulating pillar through a high-voltage lead. Every two adjacent insulation supporting columns are connected through a rigid material, and the last insulation supporting column is connected with a wall bushing on a wall plate through a high-voltage wire and then connected with a pre-charging device to conduct power supply. According to the utility model, one high-voltage power supply is used for supplying power to the pre-charging devices arranged on the two or more loudspeakers, each pre-charging device can be independently disconnected without influencing the normal operation of other pre-charging devices and an electric field under the condition that a main power supply is not cut off, and on the premise that the pre-charging devices normally operate the required high-voltage power supply, the pre-charging devices can be independently disconnected. The construction cost is greatly saved, and the market competitiveness is improved.

The invention relates to the field of sintering machine head electrostatic dust collection, and provides a sintering machine head electrostatic dust collection system which comprises an airflow homogenization unit, an electric field dust collection unit, a high-frequency pulse power supply unit, an intelligent control unit and a dust concentration detector. The airflow homogenization unit is arranged in front of the electric field dust removal unit; the high-frequency pulse power supply unit is in signal connection with the electric field dedusting unit; the intelligent control unit is in signal connection with the electric field dedusting unit and used for controlling the voltage of the electric field dedusting unit; the dust concentration detector is arranged at the outlet position of the electric field dust removal unit, and is used for detecting the outlet dust concentration of the flue gas at the outlet position of the electric field dust removal unit and sending the outlet dust concentration to the intelligent control unit; the intelligent control unit is in signal connection with the high-frequency pulse power supply unit, and when the outlet dust concentration is larger than 20 mg / Nm, the pulse mode of the high-frequency pulse unit is activated, the invention further provides an electrostatic dust collection method for the sintering machine head, and the effect of improving the electrostatic dust collection efficiency and effect is achieved.

The invention relates to the technical field of power supply control, in particular to an intelligent control method and system for an ultrahigh-frequency power supply for electric precipitation based on data analysis, and the method comprises the steps: 1, collecting all monitoring data controlled by the ultrahigh-frequency power supply for electric precipitation, the method comprises the following steps: step 1, obtaining various parameters for analyzing ultrahigh frequency power supply control performance indexes, step 2, analyzing the various parameters in the step 1 to obtain various control indexes for ultrahigh frequency power supply intelligent control, and step 3, respectively comparing the various control indexes obtained in the step 2 with a threshold value, the method comprises the following steps: step 1, comparing the control indexes, and triggering an ultrahigh frequency power supply control mechanism according to a comparison result, step 4, based on the comparison result obtained in the step 3, carrying out comprehensive analysis on the regulation factors of the control indexes through a big data analysis technology, and step 5, carrying out man-machine interaction on a comprehensive analysis result obtained in the step 4. By collecting and analyzing operation data of the electric precipitator in real time, intelligent control over the ultrahigh-frequency power supply can be achieved, the electric precipitation efficiency is improved, and energy consumption is reduced.

The invention provides an intelligent dust remover control method and system based on electrostatic adsorption. The method comprises the following steps: acquiring dust concentration, temperature and humidity and particulate matter impedance spectrum data of a working environment, screening key measurement points, applying an alternating electric field to obtain an impedance phase difference map, performing frequency spectrum consistency verification on the impedance phase difference map and the impedance spectrum data after temperature and humidity compensation, and calculating conductivity discrimination parameters of dust with different particle sizes; deploying a parallel metal plate adsorption array containing an insulating dielectric layer, and adjusting the plate spacing to change the electric field intensity; generating a resistivity space distribution thermodynamic diagram based on the conductivity discrimination parameters, and cooperating with drive board spacing adjustment and voltage output according to the resistance gradient change of the insulation and conductive dust gathering area and the migration path; and a measurement point location screening strategy is updated in combination with the spacing adjustment amplitude and the voltage change rate, and the impedance spectrum precision is optimized. Precise identification of insulation and conductivity multi-mode dust and dynamic electric field self-adaptive adsorption are achieved, the dust removal efficiency of a complex environment is improved, and energy consumption is reduced.

The present invention discloses a multi-signal optimization energy-saving electrostatic precipitator control method, which relates to the field of energy-saving and environmental protection technology. The present invention includes an electrostatic precipitator control system, and the electrostatic precipitator control system includes an optimization algorithm system based on the electrostatic precipitator control system, and the optimization algorithm system includes a signal acquisition device, a data storage module, and a logic analysis module. The present invention obtains the electrostatic precipitator dust removal efficiency of known airflow parameters and dust radius under different limit line plate spacings by combining and analyzing the unit load, the dust concentration at the powder outlet, and the coal quality parameters, and brings in the voltage and current when the signal peak occurs, and obtains the energy consumption change of the system before and after, which is the optimization strategy of the energy-saving model, and minimizes the power consumption of the system operation.

The invention relates to an electrostatic dust collection control method and device, a medium, electronic equipment and a program product, and relates to the field of electrostatic dust collection, the method comprises the steps that real-time data in the electrostatic dust collection process are obtained, the real-time data comprise real-time environment information and operation parameters of an electrostatic dust collector, and the real-time environment information of the electrostatic dust collector is obtained based on the real-time data; operation of the electrostatic dust collector is controlled through various controllers, and the controllers comprise at least one of a fuzzy controller, a neural network controller and a robust controller. According to the technical scheme, based on the real-time data in the electrostatic dust collection process, the fuzzy controller is used for automatically controlling the operation of the electrostatic dust collector, the neural network is used for optimizing the control process, the robust controller is used for reducing the influence of external interference, the control precision of electrostatic dust collection can be improved, and therefore the dust collection efficiency and accuracy are improved; the labor cost is reduced.

An air filter for an air filter assembly in an air conditioner is provided, in particular for filtering out particles, preferably pollutants, from air. The air filter contains a filter element with an electrically conductive layer. The air filter also has a housing that partially encompasses a housing interior into which the filter element is inserted. The air filter also has a terminal on the housing that can be contacted from outside the housing interior, which is made of an electrically conductive material and is connected to the conductive layer of the filter element.

The utility model relates to the technical field of coal gas purification equipment, in particular to an electrical tar precipitator insulating device without introducing nitrogen. Comprising a body, an upper hanging bracket, a hanging rod, an umbrella-shaped cover, a cylinder body, a spraying pipe, a connecting cylinder and an insulating box, the connecting cylinder is fixedly connected to the top of the body, and the bottom extends into the body; the barrel is fixedly connected to the bottom of the connecting barrel; the umbrella-shaped cover is fixedly connected to the bottom of the barrel; the top end of the suspender is fixedly connected into the insulation box, and the bottom end of the suspender extends out of the umbrella-shaped cover; the umbrella-shaped cover and the cylinder body are made of insulating polytetrafluoroethylene, the surfaces of the umbrella-shaped cover and the cylinder body are modified into oleophobic structures or oleophobic coatings, and the umbrella-shaped cover and the cylinder body are used for sealing the lower portion of the insulating device so that coal gas cannot enter the insulating device and are insulated so that the insulating device does not need to be filled with nitrogen. Nitrogen is not introduced into an insulation box, so that energy is saved, gas purity is guaranteed, and stable operation of equipment is guaranteed.

The invention relates to the technical field of electrostatic dust collection and discloses an accurate frequency adjustment method for an intelligent frequency modulation high-voltage power supply of an electrostatic dust collector. The method comprises the steps of collecting voltage signals with frequency fluctuation in operation of a high-voltage power supply to form a voltage sequence; dividing period segments by using wave crest distribution in the voltage sequence, and clustering to obtain adjustment subsequences; obtaining a trend fluctuation index based on local signal change trend fluctuation and signal differences of the adjustment subsequences, and obtaining an amplitude drop difference and an amplitude interval difference according to an amplitude change trend difference and an amplitude bit sequence change trend difference; obtaining a period stability coefficient by combining the difference, the average condition of the trend fluctuation index and the average condition of the sub-sequence similarity; constructing a Hankel matrix and performing singular value decomposition, and obtaining a main component proportion and a difference index based on a singular value condition; and according to the Hankel matrix line data correlation, the period stability coefficient, the main component proportion and the difference index, obtaining a signal stability index, and according to the signal stability index, accurately adjusting the high-voltage power supply frequency.

The present invention relates to an electrostatic dust collecting device and air purification equipment, comprising: a first electrode sheet and a second electrode sheet in the shape of strips, a plurality of first supporting bosses are respectively arranged on both sides of the first surface of the first electrode sheet, a plurality of second supporting bosses are respectively arranged on both sides of the first surface of the second electrode sheet, and the second surface of the first electrode sheet is contacted and stacked on the second supporting bosses of the second electrode sheet and then wound to form the electrostatic dust collecting device. The electrostatic dust collecting device of the present invention does not need to use a specific tooling to maintain a fixed gap during winding and can accurately maintain a fixed spacing. After winding and forming, a layer support structure can be formed to solve the problem that the spacing between two electrostatic dust collecting sheets after spiral winding is difficult to ensure. Moreover, after winding, it can be assembled into a finished product without the need for subsequent process treatments such as dispensing glue and inserting an isolation comb.

The present invention relates to the technical field of anti-haze screen window, in particular to a high-safety electrostatic anti-haze screen window system, comprising an outer yarn and a high-voltage generator, wherein the outer yarn comprises a plurality of conductive wires, and the output end of the high-voltage generator is connected to the conductive wire by a first resistor element in series, so that after the high-voltage generator is powered on, the conductive wire generates electrostatic adsorption or repulsion to suspended particles in the adjacent air, and utilizes the electrostatic field generated by the conductive wire of the outer yarn after the high-voltage generator is powered on to induce polarization of neutral suspended particles in the air adjacent to the conductive wire, so that the particles are adsorbed on the conductive wire, and the content of haze particles such as PM 2.5 in the air entering the room is greatly reduced; the first resistor element in series ensures that when a human body approaches or touches the outer yarn, the discharge of the accumulated charge inside the high-voltage generator to the human body can be ignored. The present invention has the advantages of achieving high-efficiency anti-haze and dust prevention at low cost and low energy consumption, while ensuring safety in use.

The invention relates to the technical field of dust removal equipment, in particular to a two-dimensional airflow efficient electric dust remover. The two-dimensional airflow high-efficiency dust remover comprises an acquisition module used for acquiring particulate matter concentration data at a flue gas outlet of the two-dimensional airflow high-efficiency dust remover; and the control module is used for controlling the working state data of the two-dimensional airflow high-efficiency electric precipitator according to the particulate matter concentration data at the flue gas outlet of the two-dimensional airflow high-efficiency electric precipitator. The power supply voltage of the corona wire is adjusted in real time according to the particulate matter concentration data at the flue gas outlet of the two-dimensional airflow high-efficiency electric precipitator while the dust removal effect of the two-dimensional airflow high-efficiency electric precipitator is guaranteed, energy consumed by the electric precipitator is reduced to a great extent, electric energy and enterprise cost are saved, and the economic benefit is increased. And the intelligent degree of the two-dimensional airflow high-efficiency electric dust remover is greatly improved.

The invention relates to the technical field of braking devices, in particular to a braking particulate matter emission reduction device and method suitable for a new energy vehicle. The device comprises a dust collection cover covering a brake device, a particulate matter adsorption system connected with the dust collection cover, a controller, a fan and an electrostatic generation system, the dust collection cover is used for collecting brake particles and conveying air mixed with the brake particles to the particle adsorption system through a pipeline under the action of the fan; the controller controls the electrostatic generation system to generate an electric field and adjusts the intensity of the electric field; opening and closing of a fan are controlled, and air volume is adjusted; the particulate matter adsorption system adsorbs particulate matter under the action of an electric field, and after the electric field disappears, the particulate matter automatically falls into the dust collection box.

An air filtering device through which a flow path for air passes is provided. It contains an ionizer in the flow path and an electrostatically charged filter downstream of the ionizer in the flow path, such that air can flow through the ionizer and filter. The ionizer also contains an electrode for generating a corona discharge that can be electrically connected to a high voltage source for the air filtering device, a counter electrode dedicated to the electrode, and an electrically conductive grid element upstream of the ionizer in the flow path. Substantial to the invention is that the counter electrode is electrically connected to an electrically conductive, flat, filtering layer in the filter. A vehicle air conditioner that contains at least one such air filtering device is provided.

An electrostatic air cleaner may be operated according to a manner designed to achieve acceptable air quality while balancing power usage and corona electrode degradation levels. The voltage applied to the corona electrode(s) may be controlled as well as the voltage applied to repelling electrodes and air flow velocity. The air cleaner may also be operated to achieve desired particle separation.

The invention relates to a filter insert (10) for a filter system (100) comprising an ionizer (102), with an electrically insulating filter material (14), at least one electrically conductive polarizing element (16a, 16b) to which an electrical voltage can be applied to polarize the filter material (14), and a current collector (20) which is designed to protect the filter material (14) from an overcurrent caused by a voltage breakdown and the resulting damage.

The present disclosure relates to an electrostatic charger and an electrostatic precipitator securing a wide space for charging suspended fine particles contained in a processing airflow. The electrostatic charger includes a discharge electrode formed of a plurality of fibrous conductors and provided to generate and diffuse ions by a discharge, a ground electrode maintained at a ground potential and provided to attract the ions generated and diffused by the discharge electrode to charge suspended fine particles contained in a processing airflow by the ions, where the discharge electrode is disposed between the ground electrodes in the processing airflow, and all or at least a part of the plurality of fibrous conductors of the discharge electrode are disposed on a downstream side of the processing airflow further than an end portion of the ground electrode on the most upstream side of the processing airflow.

The invention relates to the technical field of high-frequency power supply control, in particular to a high-frequency power supply driving control circuit and driving control method for an electric precipitator, and the method comprises the steps: collecting dust concentration data, current data, voltage data and flue gas temperature data of the electric precipitator in observation time periods at all moments; analyzing the dispersion degree of each parameter in the time window, performing anomaly detection on the data of each parameter in the time window, and obtaining the disorder index of each parameter according to the anomaly detection result; the confusion degree of the confusion indexes of various parameters at all moments in the observation time period of each moment is combined with multi-attribute decision analysis to obtain the comprehensive proximity of each moment, and the comprehensive working condition fitness of the electric dust remover at each moment is obtained; and controlling a high-frequency power supply of the electric dust remover by combining the disorder index of each parameter on the basis of a numerical relationship between the comprehensive working condition fitness and a preset threshold value. The invention aims to dynamically adjust the power supply output and ensure the efficient operation of the electric dust remover.

The invention discloses an electrostatic dust collector high-voltage power supply dynamic adjustment method based on fuzzy control, and the method comprises the steps: extracting the impedance change and dust concentration based on real-time operation parameters, judging the tripping risk through fuzzy reasoning, and adjusting the output voltage. And in combination with dust distribution characteristics, pulse parameters are optimized through a fuzzy control algorithm, and waveforms matched with particle motion are generated. Environment parameters are collected to construct a working condition model, and a control mode is switched after scene recognition. And predicting a load change trend, and calculating a millisecond-level response strategy. And fusing the dust removal efficiency and the energy consumption target, dynamically distributing weights, calculating a comprehensive control strategy, verifying a balance state, iteratively adjusting a weight coefficient, and realizing dynamic adjustment of the high-voltage power supply. According to the invention, the stability, the dust removal efficiency and the energy consumption balance of the high-voltage power supply are remarkably improved, and intelligent control of multi-objective optimization is realized.

The present invention aims at the problem that the power saving control of the precipitator in the prior art only considers the analysis of the electrical characteristics in the electric field of each electric field and controls them independently, but rarely considers the operating status of the entire system of the precipitator. A method and system for energy saving optimization of coordinated control of an electrostatic precipitator is proposed, including determining a number of electrostatic precipitator chambers according to the overall goal, and determining the smoke control sub-goal of each electrostatic precipitator chamber, setting the operation mode and related control parameters of each high-voltage power supply according to the flue gas conditions, and differentially allocating the rated output power and working mode of the high-voltage electric field in the same electrostatic precipitator chamber. Under the premise of ensuring that the smoke control sub-goal remains unchanged, the output power of each high-voltage electric field is automatically adjusted, and each high-voltage electric field can work in coordination with each other. The present invention performs systematic global deployment control on each high-voltage electric field in the electrostatic precipitator, and each high-voltage electric field can work in coordination with each other, and the dust removal energy consumption utilization rate is higher, thereby greatly improving the energy saving efficiency of the entire electrostatic precipitator.

The invention relates to the technical field of tunnel cleaning, discloses a tunnel wall surface self-cleaning system based on an electrostatic adsorption principle and a design method, and aims to solve the problems of low efficiency, high cost and large potential safety hazard of traditional tunnel cleaning. The system comprises a solar power supply system, an automatic control system and a dust removal system, wherein the automatic control system detects dust concentration by using a laser particulate matter sensor and dynamically adjusts dust removal voltage in combination with a fuzzy PID (Proportion Integration Differentiation) algorithm; according to the dust removal system, an arc-shaped conductive fiber dust collection plate is adopted to be matched with a tunnel curved surface structure, efficient dust removal is achieved through a vibrator and a dust collection box, and a humidity regulation and control function is integrated to inhibit reentrainment of dust. Organic integration of new energy power supply and intelligent dust removal is creatively achieved, the tunnel cleaning system has the advantages of being compact in structure, high in adaptability, capable of saving energy and environmentally friendly, the automation and intelligence level of tunnel cleaning work is remarkably improved, the operation cost is reduced, and an efficient, economical and sustainable solution is provided for tunnel environment governance.

A gas filter that includes a filter medium configured to filter a gas flow propagating from an upstream facing side through the filter medium to a downstream facing side. The filter medium includes a capacitor with a first electrode, a second electrode, and a dielectric medium. The gas filter also includes a first electrical contact and a second electrical contact such that the first electrical contact is electrically connected via a first resistor to a branching point and the second electrical contact is electrically connected via a second resistor the same branching point. Further, the first electrode is preferably electrically connected to such branching point and the second electrode is preferably electrically connected to the second electrical contact.