369results about "Electric supply techniques" patented technology

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.

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 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 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.

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 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.

A smart air ionizer is disclosed herein. The smart air ionizer includes a power circuit, a high voltage circuit, an electrode coupled to the high voltage circuit, the electrode configured to ionize air surrounding the electrode, and a controller circuit coupled to the power circuit and the high voltage circuit, the controller circuit including a controller configured to control a voltage output of the high voltage circuit to the electrode based on a feedback received from the high voltage circuit.

The embodiment of the invention provides a self-recovery method for the ion release capacity of a high-voltage electrostatic module, electronic equipment, a storage medium and a program product, and the method comprises the steps: outputting a self-recovery control signal corresponding to a target time threshold value under the condition that the cumulative operation time length of the high-voltage electrostatic module reaches the target time threshold value, the high-voltage electrostatic module is controlled to execute self-recovery operation; and when it is determined that the accumulated purification amount of the high-voltage electrostatic module reaches a target purification amount threshold value, outputting a self-recovery control signal corresponding to the target purification amount threshold value so as to control the high-voltage electrostatic module to execute the self-recovery operation. The embodiment of the invention provides a dual guarantee mechanism self-adaptive to different use scenes (light-load stable operation and heavy-load accelerated attenuation), establishes an active monitoring and recovery capability for performance attenuation of the high-voltage electrostatic module, and solves the problem that the purification efficiency is reduced due to the fact that the ion release capability is reduced after the module is used for a long time.

An electrostatic air filter device (1) and a method for operating the electrostatic air filter device (1) are proposed. The electrostatic air filter device (1) is designed to filter air flowing through it and comprises an ionizer (2) for ionizing air particles (3) in an electrostatic field generated by applying an electrical voltage supplied by a controllable electrical power source (21) to the ionizer (2). The electrostatic air filter device (1) further comprises an electrical control circuit (20) for controlling the controllable electrical power source (21). The electrical control circuit is configured to detect at least one current power parameter of the ionizer (2) to determine its current state and to adjust the electrical power source at least partially based on the detected power parameter.

The application discloses a kind of spark flashover point generation position prediction method and system of pulse high voltage power supply, obtain spark flashover characteristic database from initial time to the total number of spark flashover stored during current time, determine the spark flashover number of each partition in total number of spark flashover, based on total number of spark flashover and the spark flashover number corresponding to each partition, obtain the current occurrence probability of spark flashover of each partition, determine the instantaneous impedance variation law of each partition when flue gas working condition parameter changes, based on the current occurrence probability corresponding to each partition spark flashover and instantaneous impedance variation law of spark flashover, using random optimization algorithm, obtain the predicted occurrence position and predicted occurrence probability of spark flashover point next time.The application realizes the predicted occurrence position and predicted occurrence probability of spark flashover point next time, to improve the intelligent control level of pulse high voltage power supply.

The invention relates to the technical field of electric precipitation, in particular to overload monitoring equipment and a monitoring method for electric precipitation equipment, and the method comprises the following steps: acquiring target production data; determining a target dust discharge amount according to the target production data; and determining the target current magnitude according to the target dust discharge amount. The method has the advantages that the neural network is used for conducting deep learning on online collected production data, a corresponding relation model between the dust amount and the power plant production data is established, the smoke dust emission amount is predicted based on the model, the average secondary current amount of the electric field is adjusted in real time on the basis, and the purposes of reducing consumption and reducing power consumption are achieved. According to the invention, the control aims of improving the reliability of the IGBT and prolonging the service life of the IGBT are fulfilled, the spark discharge phenomenon can be reduced or avoided as much as possible, equipment such as the IGBT and a trigger circuit board can be better protected, and unnecessary electric energy consumption can be effectively reduced at the same time.

The invention discloses an electric field parameter coordination control method and system of an electrostatic dust collector, and belongs to the technical field of electrostatic dust collection. The problems that an existing coordination control method depends on artificial experience, electric field parameters are inflexible to adjust, energy consumption is high, and dust removal efficiency is unstable are solved, historical electric field parameters and smoke turbidity are predicted and analyzed through the deep neural network, a prediction result is optimized in combination with a particle swarm optimization algorithm, and the method has the advantages of being high in practicability and the like. The electric field parameter ratio with the lowest energy consumption can be found on the premise that the dust removal efficiency is met, so that the electric field is always in the optimal operation state; meanwhile, by monitoring the electric field parameters in real time, the electric field parameters can be dynamically adjusted according to the change of the working condition parameters, so that the method adapts to complex working condition changes, the dust removal efficiency is further improved, the performance and operation stability of the electrostatic dust collector are effectively improved, and the method has wide application prospects.

The invention provides a pulverized coal concentration device based on a charge method and a control method of the pulverized coal concentration device, and belongs to the field of combustion of coal-fired boilers. The problems that a traditional inertia separation technology is low in separation efficiency and prone to abrasion in the low-load stable combustion process of the pulverized coal boiler are solved. Comprising a corona discharge device, a grounding device, a central discharge device, a concentrated pulverized coal pipeline and a light-phase pulverized coal pipeline, a guide plate is arranged at an inlet of the concentrated pulverized coal pipeline, one end of the light-phase pulverized coal pipeline is inserted into the concentrated pulverized coal pipeline, and the other end of the light-phase pulverized coal pipeline is located on the outer side of the concentrated pulverized coal pipeline; the corona discharge device is arranged on the outer side wall, corresponding to the insertion section of the light-phase pulverized coal pipeline, of the concentrated pulverized coal pipeline, the grounding device is of an annular structure and arranged on the outer side of the corona discharge device in a surrounding mode, and a wear-resistant lining is arranged on the inner wall of the concentrated pulverized coal pipeline. The device is mainly used for improving the pulverized coal concentration of the pulverized coal boiler during low-load operation.

The invention discloses a wide-load coal-fired unit furnace rear dust removal system which comprises a main smoke inlet flue, a plurality of branch smoke inlet flues, an electric dust remover set, a plurality of branch smoke outlet flues and a main smoke outlet flue which are sequentially arranged, the electric dust remover set is composed of a plurality of electric dust removers, and each electric dust remover is internally provided with a plurality of dust removal chambers. Each dust chamber is provided with a dust inlet and a dust outlet, the dust inlets are connected with the main inlet flue through branch inlet flues, the dust outlets are connected with the main outlet flue through branch outlet flues, electric air adjusting doors are arranged in the branch inlet flues and the branch outlet flues, and flue gas temperature changing devices are mounted between the branch inlet flues and the dust inlets; the electric dust remover is divided into the independent electric dust removal chambers through the partition walls, and the corresponding electric dust removal chambers are closed and started in cooperation with the automatic control system, so that when an existing coal-fired unit is in a low load, the dust outlet concentration can be accurately controlled, energy consumption is reduced, and the device adapts to the low load with reduced flue gas amount; and the corrosion problem caused by too low local flow velocity in the electric dust remover is avoided.

The invention discloses an oil fume ionization device, a control method thereof and a range hood. The oil fume ionization device comprises a bracket; the electrode plate group comprises a positive plate and a negative plate which are oppositely arranged, the positive plate and the negative plate are rotatably mounted on the bracket, an overcurrent gap is formed between the positive plate and the negative plate, and an ionization region is formed between the edge of the positive plate and the edge of the negative plate; an output shaft of the driving device is connected with the electrode plate group, and the driving device is used for driving the electrode plate group to rotate; the support is provided with an air inlet, an air outlet and an overflowing channel communicating the air inlet with the air outlet, the electrode plate set is installed in the overflowing channel, and the ionization area is close to the air inlet. According to the technical scheme, the purification efficiency of the lampblack ionization device is improved, and meanwhile, the washing convenience of the electrode plate group is improved.

The name of the present invention is an energy-saving electrostatic precipitator high-voltage power supply and its control method. It belongs to the technical field of electrostatic precipitator high-voltage power supply. It mainly solves the problems of the existing electrostatic precipitator composite pulse high-voltage power supply, which requires two sets of power supply systems, such as complex system, high failure rate and poor fault tolerance. Its main features are: it includes a current limiting reactor, a rectifier unit, a high-frequency inverter unit, a high-frequency transformer, a DC voltage superposition unit and a pulse voltage superposition unit electrically connected in sequence; the high-frequency transformer is a high-frequency single-phase transformer with a single winding on the primary side and multiple windings on the secondary side; the DC voltage superposition unit includes a plurality of DC voltage circuits connected in sequence, and the pulse voltage superposition unit includes a plurality of pulse voltage circuits connected in sequence. The present invention has the characteristics of small size, adjustable pulse width and amplitude, multiple output characteristics and dust removal body energy storage, improves the dust removal efficiency of the electrostatic precipitator system and reduces power consumption, and is mainly used for high-voltage power supply in the electrostatic precipitator system.

The invention relates to a method for diagnosing an air filter device (1) for separating particles (P) from air (L) passed through the air filter unit (20), which has an ionizer (3) with at least one spray electrode (17) and with at least one counter electrode (5) and also an air filter unit (20) with a filter element (21) having an electrically conductive layer (22), wherein the electrically conductive layer (22) is electrically connected to the counter electrode (5), - according to which an electrical potential difference or high voltage (HV) is generated between the spray electrode (17) and the counter electrode (5) by means of an electrical high-voltage source (8) which is electrically connected to at least one spray electrode (17) and to at least one counter electrode (5) of the ionizer (3), which causes an electric corona current from electrical charges, in particular electrons, emerging from the at least one spray electrode (17), - according to which electrical supply current (I0) is supplied to the electrical high-voltage source (8) for the generation of the electrical corona current, which depends on the electrical corona current, - according to which this electrical supply current (I0) is determined and, depending on this, a conclusion is drawn about a current operating state of the filter element (21) and / or about a filter type of the filter element (21).

The application provides a double closed loop energy-saving optimization control method applied to an electric dust removal system, according to feedback information of output flue gas turbidity of the electric dust removal system, corresponding adjustment of average secondary current is carried out, an outer ring closed loop control of the electric dust removal system is formed, so that current working power meets the requirement of outlet flue gas turbidity control index; and an optimized duty cycle is used to make the spark number not greater than a constraint upper limit value, an inner ring closed loop control of the electric dust removal system is formed, so as to maintain the working power in the outer ring closed loop control. The application adopts a comprehensive index optimization control strategy combining spark control and intermittent power supply mode, which can not only avoid the safety risk of equipment, but also achieve the best energy-saving effect.

The application relates to a comprehensive electric field dust removal system in a lunar environment and relates to the technical field of lunar dust prevention and control. In order to solve the technical problem that, in the prior art, lunar dust causes sealing failure of lunar equipment, thereby affecting normal operation of the equipment, mechanical jamming and shortening of the service life, and affecting observation and data acquisition, the technical scheme provided by the application is as follows: a directional dust control device is adopted, row wave directional transportation technology and electrostatic field electrode adsorption technology are adopted, the direction of lunar dust is controlled, and flying dust is adsorbed; a non-directional dust removal device is adopted, electromagnetic wave blowing technology is adopted, and lunar dust particles are removed through Lorentz force. A lunar dust prevention and control unit is further arranged and is used for providing alternating current and direct current for the directional dust control device and the non-directional dust removal device. The non-directional dust removal device adopts electromagnetic wave blowing technology and removes lunar dust particles through Lorentz force. The application can be applied to dust removal of a power supply of a moon exploration auxiliary robot.

The invention discloses a smoke dust collecting and purifying system and a purifying method. The smoke dust collection and purification system comprises a dust removal device, a ventilation device, an electrostatic dust removal ventilator and a solar cell panel driving device, the dust removal device is connected with the electrostatic dust removal ventilator, and the solar cell panel driving device is fixed to the upper portion of the electrostatic dust removal ventilator. The dust removal device collects and purifies smoke dust for the first time, meanwhile, purified exhaust air and outdoor fresh air are mixed and introduced into the middle of the workshop, the smoke dust escaping from the workshop continues to move upwards, then the smoke dust in the workshop is collected and purified for the second time through the electrostatic dust removal ventilator, and a solar cell panel is flexibly opened and closed; air flow in a workshop can be promoted, and the dust removal effect in the workshop is improved.

This invention relates to the field of electrostatic precipitator technology. It provides an automatic adjustment method and system for an electrostatic precipitator, which precisely controls dust emissions by real-time monitoring of the boiler's total airflow and the dust concentration in the raw flue gas. The system automatically adjusts the electric field output based on the monitoring data and utilizes a feedback mechanism to ensure that dust emissions meet set values. Furthermore, the system also features oxygen correction and special operating condition handling capabilities. This invention improves the intelligence and accuracy of dust control, achieves energy conservation and environmental protection, reduces equipment wear, meets environmental standards, and solves the problem of coal-fired power plants being unable to achieve precise intelligent control of dust levels.

The invention relates to an air filter unit (100) for an air filter device (1) of an air conditioning system, in particular for separating particles, preferably dirt particles, from air (L). The air filter unit (100) comprises a filter element (101) with an electrically conductive layer (103). Furthermore, the air filter unit (100) comprises a housing (104) which partially surrounds an interior housing space (105) in which the filter element (101) is replaceably arranged. The air filter unit (100) also comprises a connection element (106) made of an electrically conductive material, arranged on the housing (104) and electrically contactable from outside the interior housing space (105), which is electrically connected to the electrically conductive layer (103) of the filter element (101).

A surgical assembly is disclosed for use with an ultrasonic surgical device that is arranged to deliver ultrasonic vibrations to patient tissue for use in cutting or cauterizing patient tissue during a surgical procedure. The assembly comprises an ion-generating electrode arranged to receive an electrical signal for generating ions proximate a site of the surgical procedure for removing particles suspended proximate the surgical site, and a controller for controlling the application of the electrical signal to the ion-generating electrode. The assembly further comprises a sensing arrangement for sensing a presence of ultrasonic vibrations, and which is communicatively coupled with the controller and arranged to output an activation signal to the controller to cause the electrical signal to be applied to the ion-generating electrode when the sensed ultrasonic vibrations comprise a frequency within a pre-defined frequency range.

The invention is suitable for the technical field of aerospace aircraft environment control, and provides an environment processing system and method for an aerospace aircraft space, and the system sequentially comprises an air inlet, a first discharge cavity, an airflow channel, a second discharge cavity, a sensing module section and an air outlet in the airflow direction; an electrode I is arranged in the first discharge cavity, a high-voltage electrode in the electrode I is connected to a positive high-voltage power supply, and a grounding electrode is connected to a zero-potential reference; an electrode II is arranged in the second discharge cavity, a high-voltage electrode in the electrode II is connected to a negative high-voltage power supply, and a grounding electrode is connected to a zero-potential reference; the sensing module section is provided with a sensing module for detecting gas components; by adopting the bipolar ground design and through the synergistic effect of the oxidation stage and the reduction stage, air is efficiently treated, meanwhile, the concentration of by-products such as ozone can be effectively controlled, it is ensured that output gas meets the aerospace environment safety standard, and the device is compact in structure and easy to integrate with an existing environment control system.

The invention relates to the technical field of flue gas treatment, in particular to a thermal power plant flue gas pollutant zero emission and recovery system which comprises a pretreatment unit, a desulfurization, denitrification and decarbonization integrated unit, a deep purification unit and a pollutant recovery unit which are communicated in sequence. The control system is electrically connected with the pretreatment unit, the desulfurization, denitrification and decarbonization integrated unit, the deep purification unit and the pollutant recovery unit respectively; the pretreatment unit is used for cooling and dedusting flue gas discharged from the thermal power plant; the desulfurization, denitrification and decarburization integrated unit is used for carrying out desulfurization, denitrification and decarburization synchronous treatment on the pretreated flue gas; the deep purification unit is used for carrying out residual pollutant removal treatment on the flue gas subjected to desulfurization, denitrification and decarbonization treatment, so that the pollutant concentration in the flue gas meets the zero emission requirement; the pollutant recovery unit is used for separating, purifying and recovering generated pollutant products; the control system is used for monitoring operation parameters of all the units in real time and automatically adjusting the operation state.

An electrostatic filter module for an air cleaner includes a housing having an installation space configured to be sealed at least against ingress of liquid. The installation space has a high-voltage connection and a connection for lower voltage. Arranged in the housing are a separation unit and an ionization unit arranged in the housing, and a high-voltage transformer is accommodated in the installation space of the housing.

A gas turbine engine combustor section (15) extends axially from a pre-diffuser (220) at a forward end to an aft end relative to an engine axis (A). The gas turbine engine combustor section (15) includes a combustor liner (232) defining a combustion chamber and a combustor dome (234) situated at a forward end of the combustor liner (232) and affixed thereto. The gas turbine engine combustor section (15) further includes an electrostatic particulate matter collector (250). The electrostatic particulate matter collector (250) includes a first charged flow guide (254) having an axially forward-most extent aligned with the pre-diffuser (220) and widens radially with respect to the engine axis (A) from the forward-most extent to the combustor dome (234). The electrostatic particulate matter collector (250) further includes a fuel nozzle (222) extending through the first charged flow guide (254) into the combustor dome (234). The electrostatic particulate matter collector (250) also includes a power supply (204) electrically coupled to positively charge the first charged flow guide (254).