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187 results about "Particulate concentration" patented technology
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Method and system for actively monitoring, regulating and controlling clean room
The invention provides a method and a system for actively monitoring, regulating and controlling a clean room, which are characterized in that environmental parameters in the clean room and spatial state information of a dynamic object are acquired through cooperation of a fixedly arranged sensor and a sensor carried by a mobile device, and the environmental parameters comprise airflow velocity, temperature and humidity, pressure difference, particulate matter concentration, illuminance and the like; the dynamic objects comprise positions of the personnel and the equipment and geometric models of the personnel and the equipment. And cleaning and fusing the collected data to generate a standardized parameter sequence with a time label, and constructing a three-dimensional dynamic environment model by combining a clean room structure and dynamic object information to realize grid mapping and visual management of environment parameters in the model. And on the basis of the model, an environment state change trend is predicted, risk grade evaluation is executed, a hierarchical regulation and control instruction is generated, closed-loop regulation and control and parameter adaptive adjustment of the clean room environment are finally realized, and the intelligent and refined level of clean room environment regulation and control is improved.
Owner:ELKO CONSTR ENG (JIANGSU) CO LTD
Atmospheric concentration field inversion method and system based on space-time diagram network
PendingCN121327473ANeural learning methodsRadio wave reradiation/reflectionRadar observationsPoint cloud
The invention relates to an atmospheric concentration field inversion method and system based on a space-time diagram network. The method comprises the following steps: acquiring atmospheric observation data of different platforms; the method comprises the following steps: standardizing and preprocessing atmospheric observation data of different platforms to generate space-time point cloud data in a unified format; mapping the time-space point cloud data into a graph network structure for describing an atmospheric physical transmission process; constructing a hybrid neural network architecture, taking the graph network structure as the input of the hybrid neural network architecture, and training the hybrid neural network architecture to obtain a prediction model; inputting real-time radar observation data into the prediction model to obtain a three-dimensional particulate matter concentration field prediction result; and analyzing the prediction result of the three-dimensional particulate matter concentration field, and evaluating the pollution cause of the current pollution event. According to the technical scheme, a high-fidelity and time-space continuous concentration field can be generated under the condition that observation data is limited, and the accuracy and reliability of an inversion result are greatly improved.
Owner:BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
Method, equipment and medium for measuring aerosol particulate matter concentration and central particle size
The invention discloses a method, equipment and medium for measuring the central particle size and the particle concentration of aerosol particles, which are applied to an aerosol device adopting a charge diffusion method, and the central particle size and the particle concentration of the particles in gas to be measured are shown in the specification. Wherein S1 is the integral of an induced current I detected during ion collection in a positive pulse high-voltage period during particle size separation, and S2 is the integral of the induced current I detected during ion collection in a positive pulse low-voltage period during particle size separation; m is a polynomial fitting order, a fitting polynomial coefficient, a particle concentration calculation proportionality coefficient and a central particle size influence coefficient. Equipment adopting the method is small in size, low in manufacturing cost and high in measurement accuracy, so that the method can be popularized and used for scene requirements of vehicle or air detection and the like.
Owner:ZHEJIANG UNIV MINGQUAN TECH
Clean room environment control compensation method and system based on temperature and humidity independent combined control
PendingCN121677117AMechanical apparatusLighting and heating apparatusThree-dimensional spaceTemperature conditioning
The invention relates to the technical field of clean room environment control, and discloses a clean room environment control compensation method and system based on temperature and humidity independent combined control, and the method comprises the steps: collecting the infrared thermal imaging data of a clean room; infrared thermal imaging data of the clean room are processed into surface heat flux distribution through three-dimensional space interpolation reconstruction; detecting the air dew-point temperature and the particulate matter concentration of the clean room, and combining the air dew-point temperature and the particulate matter concentration into a dynamic heat and humidity load vector; determining a target temperature value and a target humidity value of the clean room; a first control instruction for a temperature adjusting device of the clean room is generated, and a second control instruction for a humidity adjusting device of the clean room is generated; controlling the temperature adjusting device to adjust the temperature of the clean room according to the first control instruction, and controlling the humidity adjusting device to adjust the humidity of the clean room according to the second control instruction. Through organic combination of multi-source sensing, dynamic modeling and decoupling control, the precision, adaptability, safety and energy efficiency level of clean room environment control are remarkably improved.
Owner:AIRKEY ENVIROTECH CO LTD
Atmospheric environment particulate matter pollution detection method and device
PendingCN121384728AIndication of weather conditions using multiple variablesMaterial analysisParticulate pollutionAtmospheric sciences
The invention provides an atmospheric environment particulate matter pollution detection method and device, and the method comprises the steps: carrying out the grading analysis of the scattered light intensity at each environment detection point in an environment pollution detection region, and obtaining the particle size distribution characteristics of air particulate matters at each environment detection point in a plurality of particle size intervals; determining a spatial distribution field of the particulate matter concentration in the air based on the particle size distribution characteristics; determining a dynamic correction factor of diffusion and aggregation of particulate matters in the air according to an atmospheric physical state, and further performing dynamic correction on the spatial distribution field based on the dynamic correction factor; performing spatial reconstruction on the spatial distribution field obtained by dynamic correction on a regular grid, and determining the distribution pattern of the air particulate matter concentration in the environmental pollution detection area according to a reconstruction result; and generating a particulate matter pollution index in the environmental pollution detection area according to the distribution pattern. By adopting the scheme of the invention, the reliability of atmospheric environment particulate matter pollution detection can be improved based on particulate matter concentration space reconstruction of multi-point dynamic correction.
Owner:DEZHOU UNIV
Real-time detection method and system for concentration and components of particulate matters in air
The invention relates to the technical field of environment monitoring, and discloses a real-time detection method and system for concentration and components of air particulate matters. According to the method, signal fragments are intercepted from continuous detection flow of an air sample in a segmented mode to serve as analysis elements, a de-noising characteristic signal set is generated through background field stripping, and background field parameters are recorded. And positioning a high-concentration characteristic peak cluster in the de-noised signal to mark a key detection window, and constructing a corresponding dynamic detection task sequence. And calling a special analysis thread to carry out collaborative analysis on the de-noised characteristic signal set to obtain a hierarchical judgment result. And the result is coupled and compared with background field parameters, and if conflicts exist, the dynamic detection task sequence is recombined in real time. And updating and executing a control strategy for a subsequent detection flow according to the recombined sequence, thereby forming a self-adaptive closed-loop detection process. According to the invention, the accuracy, depth and adaptive capacity of real-time analysis of pollution components in a complex environment are improved.
Owner:PETROLEUM OCCUPATIONAL HEALTH TECH SERVICE CENT OF CHINA NAT PETROLEUM CORP
Vehicle oxygen production control method and device, vehicle and computer readable storage medium
PendingCN121224391AHuman health protectionAir-treating devicesInformation controlProcess engineering
The invention relates to the technical field of vehicle control, and discloses a vehicle oxygen generation control method and device, a vehicle and a computer readable storage medium. The method comprises the steps that in the vehicle running process, vehicle working condition information, the concentration of particulate matter in air and altitude information are obtained; according to the concentration of the particulate matter in the air, an air purification strategy is determined, and a protection purification module in an oxygen generation system of the vehicle is controlled to purify the air based on the air purification strategy; and according to the vehicle working condition information and the altitude information, an oxygen generation module in the oxygen generation system is controlled to treat purified air so as to generate oxygen. The oxygen generation system of the vehicle is controlled to generate oxygen according to the working condition information of the vehicle, the concentration of the particulate matter in the air and the altitude information, so that the oxygen generation control is more adaptive to the current vehicle state and environment condition, and the oxygen generation reliability and stability are further improved.
Owner:CHERY AUTOMOBILE CO LTD
Particulate matter concentration real-time monitoring system in dust removal process
The invention relates to the technical field of particulate matter concentration monitoring, in particular to a particulate matter concentration real-time monitoring system in the dust removal process, and solves the technical problem of poor measurement stability in the prior art. The system comprises a data acquisition unit used for acquiring a particulate matter concentration monitoring value and an environment temperature value, and the particulate matter concentration monitoring value represents the particulate matter concentration measured in real time through a microscale oscillation balance method; the correction factor determination unit is used for respectively determining a temperature deviation reference value and a sequence stability index according to the environment temperature value and the historical particulate matter concentration monitoring value sequence; the temperature deviation reference value is used for representing the measurement deviation caused by the temperature change, and the sequence stability index is used for representing the change condition of the particulate matter concentration monitoring value in the particulate matter concentration real-time monitoring process; and the concentration correction unit is used for obtaining the corrected particulate matter concentration through weighted calculation according to the temperature deviation reference value, the sequence stability index and the current particulate matter concentration monitoring value.
Owner:YI TRADING (NANJING) INFORMATION TECHNOLOGY CO LTD
Road air particulate matter monitoring and early warning method and system
PendingCN121275578AForecastingClosed circuit television systemsVideo monitoringEnvironmental resource management
The invention discloses a road air particulate matter monitoring and early warning method and system, and the method comprises the steps: receiving multi-source data of a fixed monitoring network, a mobile monitoring network and a video monitoring network, and carrying out the differential self-verification and adaptive calibration of the mobile monitoring data; performing space-time alignment fusion on the calibrated data and fixed and video data to construct a unified space-time data cube; identifying a pollution behavior based on the fusion data and detecting a particle concentration peak value, and performing correlation matching on the two to generate a candidate traceability event; when the composite early warning condition is met, the structured early warning information is automatically triggered and pushed; according to the invention, a cooperative sensing system of fixed vertical monitoring, mobile dynamic sensing and video monitoring is constructed, and adaptive calibration and artificial intelligence visual identification are combined, so that a complete technical closed loop from data acquisition, fusion analysis to traceability early warning is formed; full-process automatic management of monitoring, analysis, tracing and early warning of road particulate matter pollution is achieved, and the intelligent level and response efficiency of urban road environment management are improved.
Owner:SOUTHEAST UNIV
High-efficiency purification system for high-purity ammonia water
InactiveCN121570876ADistillation regulation/controlSolid sorbent liquid separationFiltrationIon exchange
The invention relates to the technical field of ammonia water purification, in particular to a high-efficiency purification system for high-purity ammonia water, comprising: a purification module comprising an ion exchange unit, a rectification unit, a vacuum degassing unit, a membrane filtration unit and a chelation adsorption unit to obtain high-purity ammonia water; comprising a first acquisition unit, a second acquisition unit, a third acquisition unit and a fourth acquisition unit; the control module is used for judging whether purification of the refined ammonia water meets a preset standard or not according to the conductivity characterization value of the refined ammonia water and judging whether purification of the finished ammonia water meets the preset standard or not according to the particulate matter concentration of the finished ammonia water; the path selection module is used for determining a purification path under the condition that the purification of the refined ammonia water does not meet the preset standard; and the adjusting module is used for increasing the operating pressure of the membrane filtration unit. The ammonia water purification efficiency is improved.
Owner:HEBEI ZHENGKUN FINE CHEM CO LTD
Intelligent sensing fire early warning system based on pyrolysis particulate matter detection
PendingCN121938108ASolve the lack of generalization abilityAccurate judgmentFire alarm radiation actuationSimulationOptical polarization
The invention belongs to the technical field of trace detection and intelligent early warning, and particularly discloses an intelligent sensing fire early warning system based on pyrolysis particulate matter detection. The system comprises a multi-angle polarized light scattering spectrum acquisition device, a physical information neural network inference engine, an airflow interference filtering unit, a pyrolysis dynamics constraint embedding module and a fire trend early warning output unit. A pyrolysis dynamic rule in an Arrhenius equation form is used as a physical constraint to be embedded into a neural network loss function, air flow disturbance is filtered out by combining topological data analysis and computational fluid mechanics, and a pyrolysis reaction stage and a fire behavior increasing trend are reversely deduced by using a multi-angle polarization scattering spectrum. And graded early warning is realized before the particulate matter concentration does not reach a traditional threshold value. According to the technical scheme, the accuracy, the robustness and the response lead of early fire recognition are improved.
Owner:ZHENGZHOU ZIYING ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH CO LTD
System and method for monitoring air analysis
PCT designated stageWO2026134698A1Data processing applicationsWithdrawing sample devicesControl engineeringAir pump
According to the present invention, an air pump conventionally located in a sensor module is relocated to a flow control module, thereby reducing the noise of the sensor module and making it possible to reduce the size of the sensor module. In addition, a system is modularized so that any equipment failures that occur can be quickly resolved. To this end, the system comprises: a plurality of sensor modules that include a particle sensor for measuring the concentration of particles in the air, an air inlet and an air outlet for generating airflow, and a communication port; a flow control module that includes a gas sensor, a valve, an air pump, a manifold block, and a control circuit; and a monitoring module that receives values measured by the sensor modules and values measured by the gas sensor from the flow control module.
Owner:SMARTLINE CO LTD
Intelligent leak detection monitoring method, device and system for bag-type dust collector
PendingCN121648664ADispersed particle filtrationBiological modelsProcess engineeringAnomaly detection algorithm
The invention discloses an intelligent leak detection monitoring method for a bag-type dust collector. The method comprises the following steps: S1, acquiring detection air; s2, acquiring real-time monitoring data of the concentration of the particulate matters in the detected air; and S3, performing leakage detection and leakage identification on the bag-type dust collector based on the particulate matter concentration real-time monitoring data and a dust concentration anomaly detection algorithm, wherein the leakage identification comprises identification of leakage source features and characterization of leakage positions, devices and systems. The invention further discloses a corresponding device and system, electronic equipment and a computer readable storage medium, the particulate matter concentration at the outlet of each cloth bag is monitored through the low-cost particulate matter concentration acquisition module, data are wirelessly sent to the cloud platform through the console, and then the data are analyzed and processed through a dust concentration anomaly detection algorithm embedded in the cloud platform, so that the dust concentration anomaly detection accuracy is improved. Normal operation conditions of the bag-type dust collector are determined, if abnormity occurs, an operator can rapidly position and overhaul the bag-type dust collector, and a large amount of manpower and material resources are saved.
Owner:TIANJIN UNIV
Gas particulate matter adjusting method, system, medium, equipment and product for sulfur hexafluoride gas insulated switchgear
The invention discloses a method, a system, a medium, equipment and a product for adjusting gas particulate matters of a sulfur hexafluoride gas insulated switchgear, and belongs to the technical field of adjustment of gas particulate matters of sulfur hexafluoride gas insulated switchgears. The method comprises the following steps: carrying out data preprocessing on obtained gas characteristic data of the sulfur hexafluoride gas insulated switchgear in a fixed time window to obtain preprocessed gas characteristic data, carrying out particulate matter concentration prediction by utilizing a trained gas characteristic prediction model to obtain predicted particulate matter concentration, and calculating a prediction slope; according to the obtained real-time gas flow rate and the real-time pressure of the sulfur hexafluoride gas insulated switchgear, a GPR online learning mechanism is utilized to obtain a self-adaptive particulate matter accumulation threshold value; and if the predicted slope is greater than or equal to a slope threshold value or the predicted particulate matter concentration is greater than or equal to a self-adaptive particulate matter accumulation threshold value, adjusting the gas flow rate of the sulfur hexafluoride gas insulated switchgear by using a GPR-based Bayesian optimization algorithm.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD MAINTENANCE BRANCH +1
Particulate matter sensor
Owner:NANCHANG PANTENG TECH CO LTD
Sand and dust concentration detection device based on multi-light-path fusion
The invention relates to the field of detection equipment, in particular to a dust concentration detection device based on multi-light-path fusion. Comprising a straight-through detection cavity, a laser and a detector, the straight-through type detection cavity is used for circulation of gas to be detected; the laser is fixed outside the straight-through type detection cavity and is used for emitting laser to the gas to be detected in the straight-through type detection cavity; the detector is fixed outside the straight-through type detection cavity and is used for receiving transmission light or scattered light obtained after the laser acts with the gas to be detected; the detector comprises a transmission detector and more than one scattering detector; the method for detecting the particulate matter concentration by the dust concentration detection device comprises the step of inputting intensity data obtained by all the detectors into a pre-trained regression model so as to obtain the particulate matter concentration C. Dustproof performance of the detection device is realized through structures such as the straight-through cavity, the measuring range is greatly increased through fusion of multiple optical paths, automatic calibration is realized through dynamic calibration, and the maintenance cost is reduced.
Owner:HANGZHOU WEIZHIZHAO INTELLIGENT TECH CO LTD
Probe calibration method, calibration device, battery, vehicle and storage medium
ActiveCN114778396BParticle suspension analysisComplex mathematical operationsElectrical batteryPhysical chemistry
The application relates to a detector calibration method, a calibration device, a battery, a vehicle and a storage medium. The method comprises the following steps: collecting N particulate matter concentration information in a current environment in a preset period; determining a concentration change trend according to the N particulate matter concentration information; determining a noise value based on the concentration change trend and the N particulate matter concentration information, so that the detector can be accurately calibrated according to the noise value.
Owner:BEIJING KEGAN TECH CO LTD
Air pollution identification method and vehicle
The invention relates to an air pollution identification method and a vehicle, features corresponding to abrupt change events in multi-modal data are encoded based on an attention mechanism to obtain pollution abrupt change event information, and the sudden change trend of air pollution can be accurately identified from high-frequency environmental data. According to the method, particulate matter concentration data in the multi-modal data are used as a drift term, other data in the multi-modal data are used as diffusion terms, pollution trend information is obtained through prediction, and prospective prediction and uncertainty quantification of the pollution evolution trend are achieved. A sensor map is coded based on an attention mechanism to obtain pollution spatial distribution information, and non-uniformity perception of pollution source direction and spatial distribution is realized. Therefore, through multi-modal fusion and time-space collaborative perception, the problems of recognition lag and misjudgment caused by dependence on single sensor data are effectively solved, so that a relatively complex air pollution scene can be dealt with, and the accuracy and speed of air pollution recognition are improved.
Owner:GREAT WALL MOTOR CO LTD
Method and system for controlling ventilation and air conditioning unit through combination of peacetime and urgency and storage medium
ActiveCN121655081AMechanical apparatusSpace heating and ventilation safety systemsIndoor air qualityBuilding energy
The invention relates to the field of building energy conservation, in particular to a control method and system for a flat-urgent combined ventilation air conditioning unit and a storage medium. The control method comprises the steps that the set air supply amount of an air supply outlet of the unit into a room is set, and a particulate matter concentration control target C0 is set; detecting particulate matter concentrations C1 and C2 in real time; if C1 is smaller than or equal to C0, the opening degree of the first air valve and the opening degree of the second air valve are fully closed, and the opening degree of the third air valve and the opening degree of the fourth air valve are fully opened; if C1 is larger than C0, the optimal air valve opening degree combination is solved by taking the minimum total resistance of air flowing through the bypass air duct and the deep filtering air duct as the target, and the air valve opening degree is adjusted to the optimal air valve opening degree; the current air supply amount is detected in real time, and the fan rotating speed is adjusted to the target rotating speed; if C2 is smaller than or equal to C0, the current air valve opening is kept for operation, and otherwise, the steps are repeated till C2 is smaller than or equal to C0. Accurate and stable output of the air supply amount is achieved, it can be guaranteed that the indoor air quality accurately meets the control requirement, and the operation energy consumption of the ventilation and air conditioning system can be remarkably reduced.
Owner:CHINA SOUTHWEST ARCHITECTURAL DESIGN & RES INST CORP LTD
Air quality monitoring equipment with self-cleaning function
PendingCN121917403AWithdrawing sample devicesParticle suspension analysisEnvironmental engineeringMechanical engineering
The invention relates to the technical field of environment air sampling monitoring, and discloses an air quality monitoring device with a self-cleaning function, the air quality monitoring device comprises a monitoring main body, a PM monitoring mechanism is arranged in the monitoring main body, the PM monitoring mechanism comprises a monitoring assembly, the monitoring assembly is fixedly installed in the monitoring main body, and the monitoring assembly is used for detecting an air PM value; the ventilation pipe penetrates through the monitoring main body and is used for communicating the monitoring assembly with external air; the air suction head is fixedly connected to the top of the ventilation pipe; communication and opening and closing of the breather pipe, the outer flow cavity and the inner detection cavity are controlled through the valve plate, when the breather pipe is communicated with the inner detection cavity, flowing air can be detected in the movable pipe, meanwhile, the inner detection cavity can be closed, the inner detection cavity forms a sealed detection environment, and at the moment, air in the inner detection cavity is subjected to closed detection through the monitor; two groups of detection conditions are set, and two groups of detection data are obtained, so that the detection accuracy of the concentration of the particulate matters in the air is further ensured.
Owner:天津城建集团(深圳)工程设计咨询有限公司
Pollutant digital probe detector
The invention relates to the field of pollution detection, in particular to a pollutant digital probe detector. The pollutant digital probe detector comprises a fixed cylinder, a cover body is detachably connected to the fixed cylinder, and a mounting rod is fixedly connected in the fixed cylinder; the air storage cylinders are arranged, the mounting rod is provided with mounting grooves corresponding to the air storage cylinders, and each mounting groove corresponds to one air storage cylinder; and an air exhaust assembly and the like. When the VOC concentration is detected, a particulate matter concentration sensor is arranged in a gas storage cylinder, the particulate matter concentration in sample gas is synchronously detected through a light scattering method, particulate matter concentration detection is achieved while particulate matter is filtered, the comprehensiveness of detection parameters is improved, the running state of the activated carbon adsorption bed can be comprehensively evaluated, and the VOC concentration can be accurately detected through step-by-step filtering. Particulate matters entering the sensor along with sample gas are reduced, the pollution risk of the sensor is remarkably reduced, and the long-term precision and stability of online continuous detection of the VOC concentration sensor are ensured.
Owner:HUNAN JIALAN TESTING TECH CO LTD
Flue gas particulate matter concentration detecting and sampling device
The utility model relates to a flue gas particulate matter concentration detecting and sampling device which comprises a storage box; the sampling assembly is arranged in the storage box and comprises a circular frame, a rotary table, a placement groove, a cigarette storage bottle, a sealing cover, a connecting block and a driving motor, the rotary table is rotationally connected into the storage box, the two ends of the connecting block are fixedly installed on the inner wall of the storage box and the circular frame respectively, and the placement groove is formed in the outer side of the rotary table; and a smoking mechanism. Through the sampling assembly and the smoke pumping mechanism, smoke particles can enter a connecting cylinder through a circular conveying ball and enter a smoke storage bottle along the connecting cylinder, after smoke taking is finished, a rotating disc can be rotated to enable the smoke storage bottle to rotate, then the smoke storage bottle after sampling is finished enters a storage box, and a new smoke storage bottle enters the bottom of the connecting cylinder again; therefore, the smoke particulate matter concentration can be extracted in different construction sites, the smoke storage bottle does not need to be replaced back and forth, time and labor are saved, and the working efficiency can also be greatly improved.
Owner:QINGHAI HUADING ENVIRONMENTAL TESTING CO LTD
Mine ventilation control method, electronic device, and program product
This invention discloses a mine ventilation control method, electronic equipment, and program product. The mine ventilation control method uses a built-in miniature sensor in the breathing mask to collect air quality parameters in the breathing zone of the breathing mask in real time, and simultaneously obtains the current location coordinates of the miner. The air quality parameters are used to calculate the real-time hazard level of the breathing zone by combining the corresponding safe thresholds for carbon monoxide concentration, fine particulate matter concentration, oxygen concentration, and the minimum safe wind speed when the particulate matter concentration exceeds the standard. When the preset hazard threshold is exceeded, the method generates and issues control commands for the rotation speed, damper angle, and / or airflow direction of the ventilation fans installed in the mine roadway, based on the miner's location coordinates, so as to minimize the hazard level in subsequent moments.
Owner:CHINA UNIV OF MINING & TECH
Range hood control method and range hood
PendingCN121854907ADomestic stoves or rangesLighting and heating apparatusControl theoryReliability engineering
Owner:GUANGDONG VANWARD ELECTRIC
Particulate matter loading device for particulate matter trap
The utility model provides a particulate matter loading device for a particulate matter trap. The particulate matter loading device comprises an air compressor (1), an air inlet pipeline (8) and an air inlet branch pipeline (9), the air outlet end of the air compressor (1) is communicated with the air inlet pipeline (8); a particulate matter generator (2) and a heating component (3) are further sequentially arranged on the air inlet pipeline (8) in the flowing-out direction of air flow in the air inlet pipeline (8); the air inlet pipeline (8) is in airflow communication with the particulate matter generator (2) to form airflow carrying particulate matters; and the heating component (3) is used for providing a heating source for the air inlet pipeline. According to the particulate matter loading device provided by the utility model, particulate matters are loaded on the particulate matter trap, a regeneration test is carried out on the particulate matter trap after the particulate matters are loaded, in the loading process, the particulate matter concentration is relatively uniform, the air inlet flow is stable, the loading efficiency is high, and the development period is obviously shortened.
Owner:SHANGHAI GOTEK CATALYST
Flue gas fine particulate matter concentration detection device
The utility model provides a flue gas fine particulate matter concentration detection device, and belongs to the field of flue gas detection, in order to solve the problem that a filter screen is inconvenient to disassemble and assemble conveniently, the flue gas fine particulate matter concentration detection device comprises a protective shell, an air pump is fixedly connected to the protective shell, a connecting shaft is rotatably connected with a connecting box, and a gear is in meshed connection with a rack. A limiting block is fixedly connected to the rack, the limiting block is connected into the connecting box in a limiting and sliding mode, a connecting plate is fixedly connected to the rack, and a supporting plate is arranged at the bottom of the connecting box. The device is provided with a cover plate; when the cover plate and the internal filter plate are detached, extrusion plates on the two sides of a limiting frame can be extruded, the extrusion plates can drive the limiting plate to extrude a spring, meanwhile, the limiting plate takes out a clamping block from a protective shell and the cover plate and retracts the clamping block into a fixed box, and the unobstructed limiting frame can be taken out from the protective shell and the cover plate to be detached; and the cover plate and the filter plate can be detached to clean or replace filtered materials.
Owner:HUAIAN XIANGYU ENVIRONMENTAL TESTING TECH CO LTD
Control method of range hood linkage system and range hood linkage system
PendingCN121323007ADomestic stoves or rangesLighting and heating apparatusControl engineeringClosed loop
The embodiment of the invention discloses a control method of a range hood linkage system and the range hood linkage system. The control method comprises the steps that the first particulate matter concentration, collected by a first particulate matter concentration sensor, of the island platform range hood is obtained in real time; the second particulate matter concentration, collected by a second particulate matter concentration sensor, of the wall-mounted range hood is obtained in real time; acquiring the pressure of the shared air duct detected by a pressure sensor in real time; and controlling the first fan and / or the second fan in real time according to the first particulate matter concentration, the second particulate matter concentration and the pressure of the shared air duct. According to the embodiment of the invention, the key environmental parameter, namely the back pressure of the public flue, can be brought into a control closed loop, the external environment is sensed in a self-adaptive manner, and accordingly, a double-fan cooperative working strategy in the range hood linkage system is dynamically adjusted, so that the energy-saving problem of the whole range hood linkage system is accurately regulated and controlled while effective smoke exhaust is achieved, and the energy-saving effect of the range hood linkage system is improved. And the two core requirements of ensuring the smoke exhaust effect and realizing high efficiency and energy conservation are optimally balanced.
Owner:HANGZHOU ROBAM APPLIANCES CO LTD
Method, device, and system for real-time virus infection risk monitoring
A method for real-time virus infection risk monitoring is provided. A CO2 sensor, a particulate matter sensor, a temperature sensor, and a humidity sensor are utilized to respectively detect an ambient CO2 concentration, an ambient particulate matter concentration, an ambient temperature, and an ambient humidity in a first environment. A first difference between an ambient CO2 concentration and a reference CO2 concentration and a second difference between an ambient particulate matter concentration and a reference particulate matter concentration are computed by a processor. The first environment is determined to have a high infection risk of a specific virus by the processor in response to a condition being met.
Owner:HSIEH TIEN TSE
Control method and device of range hood
The invention belongs to the technical field of range hoods, and discloses a control method and device of a range hood. The method comprises the steps that a controller controls a radar module to be powered on and operates in a low-power-consumption mode, and before the radar module detects that a user enters a preset recognition range, a PM2.5 particulate matter detection module is controlled to be powered on according to a preset duty ratio power supply cycle; when the user enters a preset identification range, receiving an induction signal sent by the radar module, and controlling the PM2.5 particle detection module to be continuously electrified; receiving the environmental particulate matter concentration collected by the PM2.5 particulate matter detection module; controlling a fan to adjust the air volume according to the plurality of environmental particulate matter concentrations; and when the radar module detects that the user leaves the preset recognition range, the PM2.5 particle detection module is controlled to be powered on continuously, and after the fan stops running, the PM2.5 particle detection module is controlled to be powered on according to a preset duty ratio power supply cycle, and the range hood is controlled to enter a standby state. By adopting the range hood, the automatic air volume adjusting function can be started after ignition of a stove is recognized.
Owner:VATTI CORP LTD
Device for realizing intelligent dust removal based on industrial environment dust removal system
ActiveCN223969670UHuman health protectionDispersed particle filtrationDust controlEnvironmental engineering
The utility model relates to a device for realizing intelligent dust removal based on an industrial environment dust removal system. The device comprises a compressed air storage tank, a compressed air conveying pipe and a plurality of pulse blowing valves, and a plurality of filter bags. The utility model relates to a leakage detection device for a compressed air storage tank, which comprises a compressed air storage tank, a compressed air delivery pipe, pulse blowing valves, a particle concentration monitor, a leakage detection signal transmission line and an electric lifting valve, the outlet end of the compressed air storage tank is connected with the inlet end of the compressed air delivery pipe, the outlet end of the compressed air delivery pipe is connected with the inlet end of each pulse blowing valve, and the outlet ends of the pulse blowing valves correspond to filter bags. The output end of the particulate matter concentration monitor is connected with a leak detection signal transmission line, and the leak detection signal transmission line is connected with the electric lift valve. According to the device for realizing intelligent dust removal based on the industrial environment dust removal system, the pulse injection pressure is dynamically adjusted through the pressure difference change of dust filtered by the filter bag, so that the consumption of compressed air is saved, and the service life of the filter bag is prolonged. And the leakage position of the filter bag in the environmental dust removal system is accurately positioned through the concentration change of the fixed pulse injection time interval.
Owner:SHANGHAI MCC ENVIRONMENTAL PROTECTION OPERATION MANAGEMENT CO LTD +1