16 results about "Atmospheric contamination" patented technology

This invention belongs to the field of air pollution detection technology, specifically relating to an air pollution control sampling device. It includes a sampling cylinder, a sampling tube connected to the side wall of the sampling cylinder, and a second annular protrusion located inside the sampling tube near the sampling cylinder. A connection area is formed by the boundary line between the sampling cylinder and the sampling tube, with a first mounting groove at the center of the connection area. An anti-backflow component is provided between the first mounting groove and the second annular protrusion, and an air inlet is provided around the periphery of the first mounting groove. A first sealing plug is used to seal the sampling tube. This invention prevents backflow during the sampling process by incorporating an anti-backflow component at the connection between the sampling cylinder and the sampling tube, thus avoiding backflow.

The utility model relates to the technical field of air pollution control, and discloses a dust removal device for air pollution control, which comprises a main body mechanism and an auxiliary mechanism. According to the dust removal device for air pollution control, through installation of the main body mechanism, when the dust removal device is used, firstly, air containing dust is sucked into a filter box through an air suction assembly, filtered through a filter screen and then discharged from an exhaust pipe, and when too much dust is accumulated on the filter screen, an electric push rod is started; the brush is pushed to move through the electric push rod, dust on the filter screen is brushed down through the brush, the dust falls into the collecting box, then the cleaning assembly is started, the atomizing nozzle sprays atomized water to clean the filter screen, and meanwhile the dust rapidly falls into the collecting box after the water and the dust are combined. A worker only needs to regularly pull out the collecting box to pour out dust, and the filter screen does not need to be disassembled, so that time and labor are saved, the working efficiency is improved, and the practicability of the dust removal device for air pollution control is improved.

The invention relates to the technical field related to air pollution prevention and control, discloses a rapping dust removal device of an electrostatic dust collector and a dust removal method of the rapping dust removal device, and aims to solve the problem that fixed rapping strength cannot adapt to adjustment requirements of different working conditions. When the dust removal gear motor drives the driving ejector rod to eject the dust collection assembly through the driving ring, the dust collection assembly compresses and accumulates force on the push spring, after the driving ejector rod is separated from the dust collection assembly, the dust collection assembly impacts on the dust vibration rod under the pushing of the elastic force of the push spring, and therefore dust removal work of the dust collection assembly is achieved through vibration generated by impact. In the process, the moving distance of the driving ejector rod pushing the dust collecting assembly can be adjusted by adjusting the length of the driving ejector rod screwed into the driving ring, the impact strength between the dust collecting assembly and the dust vibrating rod is changed by changing the compression length of the dust collecting assembly on the push spring, and finally the effect that the vibrating strength is adjustable is achieved.

The invention belongs to the technical field of toxicity testing, and discloses an on-site synchronous experimental device and experimental method for atmospheric contamination and exposure of animals and application thereof.The device comprises a main portable box, an exposure experimental unit, an auxiliary portable box and an experimental support unit which are modularly designed and detachably connected, and can be flexibly carried to various environmental event sites; animal exposure contamination experiments can be rapidly carried out at any time; by adopting a multi-exposure cabin and multi-concentration exposure experiment design, a plurality of concentration gradient experiments can be carried out in the same time, and a toxicity evaluation experiment can be completed in a shorter time. The device and the method provided by the invention are combined with each other, the field atmosphere can be used as an exposure research object at any time, toxicity evaluation experiments of ambient air under multiple concentration conditions can be carried out at the same time, and more real and effective experimental data can be obtained under real experimental conditions; the problems of rapid health risk assessment of field environmental pollution events and improvement of the accuracy of assessment results are solved.

The invention belongs to the technical field of air pollution monitoring, and discloses a method for realizing satellite remote sensing column concentration inversion VOCS by using machine learning; the method comprises: preprocessing multi-source data to obtain a multi-source feature data set; performing feature hierarchical extraction and correlation analysis based on the multi-source feature data set to obtain a feature correlation graph; performing dynamic feature embedding and relationship modeling based on the feature correlation graph to obtain a component feature space; constructing a multi-task deep learning inversion model based on the component feature space, and performing weight optimization to obtain an optimized inversion model; performing spatiotemporal interpolation and uncertainty analysis on satellite remote sensing column concentration data based on the optimized inversion model to obtain a high-resolution VOCs component inversion graph; performing multi-scale verification and dynamic correction based on the high-resolution VOCs component inversion graph and ground VOCs component monitoring data to finally obtain a VOCs component inversion result, thereby improving the refinement level of regional air quality management.

The invention belongs to the technical field of air pollution detection, and particularly relates to an air pollution detection device and a using method, the air pollution detection device comprises a supporting mounting seat, a stabilizing block is fixedly mounted in the middle of the upper surface of the supporting mounting seat, the upper surface of the stabilizing block is in threaded connection with a rotating rod, and a dismounting assembly is arranged at the top end of the outer cambered surface of the rotating rod; the device can be comprehensively inspected and maintained through the disassembly assembly, for example, when the device breaks down or measurement is inaccurate, the problem can be more deeply diagnosed after disassembly, targeted repair is conducted, the reliability and accuracy of the device can be improved, it is guaranteed that follow-up pollution detection data are more reliable, and the detection efficiency is improved. And when large-scale infrastructure construction, building construction or site reconstruction is carried out in some areas, the pollution detection equipment may hinder the construction process, and at the moment, temporary disassembly of the equipment can provide convenience for construction and avoid damage to the equipment. After construction is completed, equipment can be reinstalled, and pollution monitoring is recovered.

The invention relates to the field of environmental governance, in particular to an environment-friendly treatment system and method for air pollution governance, and the system comprises a collection module which collects smoke dust; the detection module is used for detecting the content of primary impurities and the content of secondary impurities in the smoke collected by the collection module; the pretreatment module comprises a Z-shaped pipeline and a bag-type dust collector, the Z-shaped pipeline preliminarily filters the smoke collected by the collection module to obtain first-layer treated smoke, and the bag-type dust collector filters the first-layer treated smoke again to obtain second-layer treated smoke; the filtering module is used for dissolving and adsorbing impurities and acid gas in the two-layer treated smoke dust to obtain three-layer treated smoke dust; the caking module is used for spraying water to the smoke dust generated by the pretreatment module, so that the smoke dust forms blocky dust; and the effect analysis module calculates a current effect value according to the primary impurity content and the secondary impurity content detected by the detection module. The pretreatment module is used for preliminarily separating part of large-particle impurities, and meanwhile the residence time of smoke dust in the pipeline is prolonged.

The invention relates to the technical field of environmental monitoring and atmospheric pollution prediction, and particularly discloses a multi-pollutant concentration prediction method and system based on space-time attention and a gating reset cycle network. According to the method, multi-source data are collected, and space-time alignment under the hour-level time resolution is completed; performing multi-layer extraction on the aligned features to obtain high-level semantic representation; fusing the key space region and the time slice based on a space-time attention module to obtain space-time weighted features, and outputting mixed features after convolution; inputting the mixed features into an attention enhancement gating circulation module according to time steps to generate a hidden state sequence, and outputting a time step or multi-step foresight prediction result through a prediction and regularization module; during training, the Smooth L1 loss is taken as a target, and an Adam optimizer is combined with cosine annealing learning rate scheduling to complete model optimization. The method can significantly reduce prediction errors in single-step and multi-step foresight scenes, and has high precision and stability.

The utility model relates to the technical field of air pollution prevention and control, and discloses a spiral honeycomb type air treatment device which comprises a pole rod plate, supporting plates are fixedly connected to the inner walls of the two sides of the pole rod plate, an electrode body plate is clamped to the outer wall of one side of the pole rod plate, and a base plate is clamped to the outer wall of the side, away from the pole rod plate, of the electrode body plate. An adjusting mechanism is arranged on the pole rod plate, an auxiliary mechanism is arranged on the base plate, the adjusting mechanism comprises a sliding groove, the sliding groove is formed in the inner wall of one side of the pole rod plate, the inner walls of the two sides of the sliding groove are connected with shifting pieces in a sliding mode, and the outer wall of one side of each shifting piece is fixedly connected with a sliding plate. The problem that maintenance is tedious, time-consuming and labor-consuming due to the fact that when maintenance is needed due to the fact that certain dirt is doped in each group plate in long-term air treatment, the group plates are often fixed through threads and need to be tediously disassembled and assembled through professional tools is solved.

The invention provides a visual atmospheric pollution monitoring and analyzing device. The visual atmospheric pollution monitoring and analyzing device comprises a mounting plate; the supporting rod is fixedly connected to the top of the mounting plate, movable rails are arranged on the front face and the back face of the supporting rod, through limiting rails are arranged on the two sides of the supporting rod, and a first pulley is fixedly connected to the position, close to the bottom, of one side of the inner wall of the supporting rod; a second pulley is fixedly connected to the top of the inner wall of the supporting rod through a top plate, a mounting shell is fixedly connected to the position, close to the bottom, of one side of the supporting rod, and a protective shell is fixedly connected to the front face of the mounting shell. According to the visual atmospheric pollution monitoring and analyzing device provided by the invention, the range of atmospheric pollution monitored by the visual atmospheric mobile monitoring equipment can be increased through the structure, acquisition of atmospheric pollution data at different heights is facilitated, data with more reference can be obtained through analysis of the data visual analyzing equipment, and later reference is facilitated.

The utility model discloses a dedusting mechanism for air pollution control, which comprises a pretreatment box, a filter screen cylinder is arranged in the pretreatment box, the top end of the side wall of the filter screen cylinder extends to the outer side of the pretreatment box and is provided with an air inlet pipe, the bottom end of the side wall of the pretreatment box is provided with a first connecting pipe, and the air inlet pipe is sleeved with a cooling box. A spiral guide vane is arranged between the interior of the cooling box and the air inlet pipe, a liquid inlet pipe and a liquid outlet pipe are arranged in cooperation with the spiral guide vane, a wall scraping structure is arranged in the filter screen cylinder, the tail end of a first connecting pipe is sequentially connected with a bag type dust collector and a reaction box, and a second connecting pipe is connected between the bag type dust collector and the reaction box. The second connecting pipe extends to the bottom end in the reaction box and is provided with an air injection assembly, and the top end of the reaction box is provided with an exhaust pipe.

The invention provides an urban night aerosol optical thickness multi-source collaborative inversion method and device based on a gradual change observation zenith angle, and belongs to the technical field of atmospheric environment remote sensing monitoring. And an atmospheric radiation transmission model suitable for the night is constructed, and high-precision inversion of the urban night aerosol optical thickness is realized. The method effectively improves the spatial resolution and precision of night aerosol remote sensing inversion, and is suitable for fine monitoring of urban atmospheric pollution.

The invention relates to the related technical field of atmospheric pollution protection equipment, discloses an energy-saving device and method for a high-voltage power supply of an electric dust remover, and aims to solve the problem of energy consumption loss caused by full-power power supply of a dust collection assembly. The dust collection assembly and a dust removal box are movably connected, and a detection push spring is arranged between the dust collection assembly and the dust removal box; the overall weight of the dust collection assembly is relatively light, and the dust collection assembly is jacked up by the elastic force of the detection push spring; after the dust collection surface of the dust collection assembly continuously adsorbs dust particles, the weight of the dust collection surface is increased, a sliding ring on the dust collection assembly moves downwards along a resistance guide rod, the resistance value between the sliding ring and an electric contact on a supporting frame is reduced, and an electric signal is conveyed to the control and power supply assembly; the control and power supply assembly can improve the output power of the dust collection assembly, it is guaranteed that the field intensity on the dust collection assembly can always adsorb dust, and finally the output power of the power source is adjusted in time according to the dust collection amount of the dust collection assembly, so that the energy-saving purpose is achieved.

The invention relates to the field of atmospheric pollution monitoring equipment, and particularly discloses a solar-powered atmospheric pollutant monitoring device, which comprises a monitoring platform, an unmanned aerial vehicle main body and a digital display control panel, a sample detection assembly capable of adjusting a sample gas connection port up and down is arranged in the monitoring platform, and a sampling assembly is arranged on the lower side of the unmanned aerial vehicle main body. The upper side of the monitoring platform is provided with an unmanned aerial vehicle position adjusting assembly used for achieving position adjustment and clamping of the unmanned aerial vehicle body on the upper side surface of the unmanned aerial vehicle body, and the outer side of the monitoring platform is provided with a solar power supply assembly. The unmanned aerial vehicle body can sample atmospheric pollutants and then return to the monitoring platform for detection, so that the load of the unmanned aerial vehicle body is greatly reduced, and the flight detection stroke of the unmanned aerial vehicle body is improved.

The invention relates to the field of air pollution control, in particular to a detection device for air pollution control, which comprises a supporting bottom plate, and a mobile driving assembly is mounted at the center of the bottom of the supporting bottom plate; a movable frame is arranged at the outer end of the sealing cover, a threaded sleeve is arranged at the bottom end of the movable frame and connected with a movable driving assembly, and a first rack plate is further installed on the inner wall of the sealing cover; the air detection mechanism is arranged at the center of the supporting bottom plate; the transmission adjusting mechanism is arranged on the supporting bottom plate and comprises a sliding frame, the bottom of the sliding frame is in sliding connection with the supporting bottom plate, the center of the sliding frame is connected with the air detection mechanism through a transmission assembly, and a second rack plate is installed on the side wall of the sliding frame; according to the air detection mechanism, work and sealing protection of the whole air detection mechanism can be effectively facilitated, and therefore use of the whole detection mechanism can be guaranteed.

This invention provides a vehicle-mounted, mobile device for precise source tracing and identification of air pollutants, relating to the field of air pollution source tracing technology. It includes a vehicle body with a drive motor inside. The output of the drive motor is connected to a transmission assembly. One output of the transmission assembly is connected to a lifting mechanism, and the lifting end of the lifting mechanism is connected to a detection system for precise source tracing and identification of air pollutants. A second output of the transmission assembly is connected to a conveying assembly. The conveying ends of the two conveying assemblies respectively and synchronously drive two opening and closing plates to move in opposite directions. The two opening and closing plates move within a notch on the upper surface of the vehicle body. A third output of the transmission assembly is connected to a lowering mechanism, and the bottom end of the lowering mechanism is connected to a suction cup. This invention integrates multi-dimensional monitoring modules for heavy metal particulate matter, VOCs, gaseous pollutants, meteorological parameters, and high-precision positioning, enabling comprehensive collection of air pollutant-related data and achieving precise qualitative and quantitative identification of pollutant components.