70 results about "Particle emission" patented technology

The invention relates to the technical field of wind tunnel tests, in particular to a high-speed train wind tunnel test system and method based on the PIV particle tracer technology, and the test system comprises a wind tunnel housing, a tracer particle emitter, a light curtain assembly, an imaging assembly and a train assembly which is movably installed in the wind tunnel housing. The light curtain assembly is fixed to the bottom of the periphery of the wind tunnel shell, the imaging assembly is located on the side face of the periphery of the wind tunnel shell, the tracer particle emitting device comprises a storage device, a transmission pipeline and a hollow rectification net, the hollow rectification net is fixed to a port of the wind tunnel stabilizing section, the transmission pipeline is connected between the hollow rectification net and the storage device, and the storage device is connected with the imaging assembly. And a plurality of nozzles are arranged on the hollow rectification net in a matrix shape. According to the method, the problem of non-uniform spreading of the tracer particles when flow field velocity distribution is obtained by adopting a PIV technology in a high-speed train wind tunnel test is solved, and the accuracy and the reliability of a test result are ensured.

The invention discloses a device for detecting the wear resistance of a belt conveyor, and relates to the technical field of detection, in particular to a friction mechanism which comprises an annular friction element and a driving part for driving the annular friction element to rotate in the circumferential direction. The clamping mechanism is arranged on one side of the friction mechanism and used for fixing and tensioning the belt to be attached to the outer surface of the annular friction element; the frosted particle discharging mechanism is arranged on the upper side of the friction mechanism and used for adding frosted particles between the annular friction element and the belt; the frosted particle discharging mechanism comprises a long shell fixed to the friction mechanism through a support plate, and a plurality of storage inner cavities are formed in the long shell. According to the invention, the frosted particles of different specifications can be discharged through the frosted particle discharge mechanism, so that the roughness of wear resistance detection of the annular friction element is adjusted, wear resistance detection can be carried out on the belt through various different roughness, and meanwhile, the discharge amount of the frosted particles can be accurately controlled.

The invention provides a traceable calibration device and a traceable calibration method for a mobile source emission particulate matter quantity analyzer, and relates to the technical field of particulate matter quantity analyzers. A particle generation system in the device is used for aerosol samples of different types, an electromagnetic valve system is used for controlling the aerosol samples to quantitatively enter a particle growth system, and the particle growth system is used for carrying out charge grading on the aerosol samples of different types. An aerosol sample with two charge particles, an aerosol sample with three charge particles and a monodisperse aerosol sample are obtained, the growth speed of the monodisperse aerosol sample is controlled through the temperature, a grown particle sample is obtained, and the particle measurement system is used for measuring the grown particle sample. The output current and the particle number and concentration are obtained. According to the invention, the problem of low calibration accuracy of the mobile source emission particle quantity measuring instrument in the prior art is solved.

The present invention relates to a method for reducing emissions from an internal combustion engine, in particular a spark-ignition engine fueled by gasoline, hydrogen, natural gas or biogas, or a compression-ignition engine, comprising the injection, into or upstream of the combustion chamber of the engine, of an aqueous composition comprising at least one compound capable of releasing formaldehyde. The present invention further relates to the use of said aqueous composition to reduce pollutant emissions, such as particulate emissions.

The present invention relates to a method for operating a clarification setup (1) of a bioprocessing facility (2), the clarification setup (1) comprising a fluidized bed centrifuge (3) and a pumping device (4), the fluidized bed centrifuge (3) comprising at least one centrifuge chamber (5) rotated about a geometric centrifuge axis (6), the bioprocessing facility (2) comprising an electronic process controller (7) for controlling the fluidized bed centrifuge (3) and the pumping device (4), the fluidized bed centrifuge (3) comprising a particle loading cycle (8) and a pumping device (9), the fluidized bed centrifuge (3) comprising at least one centrifuge chamber (5) rotated about a geometric centrifuge axis (6), the bioprocessing facility (2) comprising an electronic process controller (7) for controlling the fluidized bed centrifuge (3) and the pumping device (4), the fluidized bed centrifuge (3) comprising at least one centrifuge chamber (5) rotated about a geometric centrifuge axis (6), the bioprocessing facility (2) comprising at least one ... and / or a particle washing cycle (9) and a reverse operation for a particle discharge cycle (10), and if a particle loading cycle (8) is provided, the cell broth loaded into the centrifuge chamber (5) progresses to form a growing particle accumulation in the centrifuge chamber (5), and the clarification setup (1) includes a monitoring sensor device (11) with at least one optical sensor (12) for generating monitoring sensor data transmitted to an electronic process control device (7). It is proposed that in a monitoring routine (13), image-related data (14) representative of an optical image (15) of the centrifuge chamber contents (16) is generated by the monitoring sensor device (11) and a particle filling level (17) is calculated by the electronic process control device (7) from the image-related data (14) based on a computational model (18).

The invention relates to a method for operating a motor vehicle (1) which can be driven by an internal combustion engine (2) and which comprises an exhaust-gas apparatus (3) for emitting exhaust gas from the internal combustion engine (2) and at least one sensor unit (4), the method comprising the following steps: - acquiring operating data from the internal combustion engine and / or the exhaust-gas apparatus by means of the sensor unit; (S1) - modelling a current particle emission present in the exhaust gas on the basis of the operating data and / or at least one correction value by a modelling unit (6); (S2) - estimating the cumulative route emission for a route on the basis of the modeled current particle emission; (S3) - identifying an availability value on the basis of a comparison of the route emission with an emission budget for the route. (S4) - On the basis of the availability value: determining an operating mode of the motor vehicle (1) by means of which the route emission can be reached within the emission budget; (S5) and - operating the motor vehicle (1) by means of the determined operating mode. (S6) The invention also relates to a motor vehicle (1).

This technology provides a way to easily perform decorative coloring on a substrate. [Solution] The decorative film deposition apparatus comprises a chamber, a titanium particle emission unit including a titanium target disposed in the chamber and which imparts energy to the titanium target to release titanium particles, a gas supply unit connected to the chamber and which supplies a reactive gas, and a control unit which controls the gas supply unit. The gas supply unit has a carbon-containing gas supply unit which supplies a carbon-containing gas containing carbon atoms into the chamber, a nitrogen-containing gas supply unit which supplies a nitrogen-containing gas containing nitrogen atoms into the chamber, and a flow rate adjustment unit which can adjust the flow rate of the carbon-containing gas with respect to the flow rate of the nitrogen-containing gas, and the control unit adjusts the flow rate of the carbon-containing gas with respect to the flow rate adjustment unit to adjust the visible light reflectance of the film formed on the object to be deposited.

The invention discloses alkali furnace flue gas treatment equipment, and belongs to the technical field of flue gas treatment.The alkali furnace flue gas treatment equipment comprises a treatment mechanism used for cooling high-temperature flue gas, and a separation mechanism used for separating solid particles in the flue gas and a pressure relief mechanism used for relieving pressure when the equipment is blocked are arranged in the treatment mechanism; the separation mechanism is linked with a scraper through rotating outer blades and inner blades, particles in flue gas can be efficiently separated and collected into a particle box in a centralized mode, pollution caused by emission of the particles along with the flue gas is avoided, meanwhile, the cleanliness of subsequent flue gas treatment is improved, and the service life of the flue gas is prolonged. The outer blades and the inner blades are staggered, so that all particulate matters in the smoke dust can enter the particulate matter collecting cavity; the treatment mechanism provided by the invention adopts a water spraying mode driven by a lifting extrusion block, so that water is uniformly sprayed into high-temperature flue gas through a cooling spray pipe and is rapidly gasified to absorb heat, rapid and uniform cooling is realized, the problem of local overheating or insufficient cooling is avoided, and the energy utilization efficiency is improved.

The present invention relates to the technical field of particle beam distribution, and in particular to a particle beam distribution device for tumor treatment, comprising an equipment base, on which a particle emitter is mounted, a fixed base being fixedly connected to the bottom of the equipment base, a pushing mechanism being rotatably connected to the movable base, a protective cover being rotatably connected to the pushing mechanism, a rotating frame being rotatably connected to the protective cover, and an automatic maintenance mechanism being rotatably connected to the rotating frame. After the particle emitter is used, the protective cover can be arranged to cover the outside of an emission end of the particle emitter. At the same time, a support rod group and a pushing mechanism can realize automatic storage and cover of the protective cover to the outside of the emission end of the particle emitter, effectively preventing unintentional contact and avoiding safety hazards. The shielding helps prevent dust, moisture and other external contaminants from entering the equipment, thereby extending the service life. The automatic storage mechanism ensures that the protective cover does not affect the use of the particle emitter.

The invention discloses a method for preparing a battery negative electrode material from plasma modified fuel particle emissions and application, and belongs to the technical field of lithium ion battery negative electrode materials. The novel lithium battery negative electrode material is prepared by taking fuel oil combustion particle emissions as a precursor through low-temperature annealing and dielectric barrier discharge plasma nitrogen doping modification. The material is characterized in that a graphitized carbon structure is arranged inside particle emissions generated by fuel oil combustion, and lithium ions can be effectively embedded and removed. And the modified particle emissions as the negative electrode material of the lithium battery have relatively good rate capability. According to the invention, the particle emission pollutants generated by fuel oil combustion are converted into the negative electrode material of the lithium battery, the particle emission generated by fuel oil combustion is effectively utilized and converted, and meanwhile, a new thought and a new method are provided for finding a substitute of a graphite electrode of the lithium battery.

The invention discloses an atmospheric particulate matter identification feature recognition method and device based on a scanning electron microscope technology, and the method comprises the steps: analyzing a sample of a set pollution source through a scanning electron microscope controlled by a computer, obtaining an image, component data and particle size parameters of particulate matters in the sample of the pollution source, and constructing a single particle data set of the sample of the pollution source; according to the residual network model and the extreme gradient boosting model, constructing a single particle emission source prediction model, and performing training; obtaining a probability value of a target single particle belonging to a set pollution source through the trained single particle emission source prediction model; and explaining the single particle emission source prediction model through an SHAP strategy, and taking the key features of the single particle adopted by the single particle emission source prediction model during decision making as the identification features of the single particle emitted by the set pollution source. According to the method, the information of the single particles discharged by different pollution sources can be fully excavated, and the identification characteristics of the particles discharged by the pollution sources are indicated.

The present application relates to a mechanism and process method for reducing the particle emission of a belt pre-dryer, which comprises a flexible conveying assembly including a rotatingly arranged mesh belt and mesh holes penetrating through the mesh belt, and a layer of wet shavings to be dried is laid on the mesh belt; a flexible supporting assembly including a straightly arranged rigid guide rail, a rotatingly arranged flexible traction member, and a transversely connecting link arranged between the flexible traction members; the present application changes the fluctuating running state of the shavings layer into a steady parallel moving state, avoids the loose-dense-loose changes of the upper and lower layers of the shavings layer caused by the fluctuating running, reduces the phenomenon that the fine particles adsorbed and filtered by the upper layer of the shavings move and gather to the lower layer and the mesh belt caused by the fluctuating running, reduces the pressure difference between the upper and lower sides of the mesh belt caused by the gathering of the fine particles on the mesh belt, and improves the drying and filtering purification effect.

A friction material composition and related brake pads for vehicles, particularly electric vehicles, having improved friction stability, reduced creep groan noise tendency, and reduced particle emission, and being asbestos-free, wherein the composition comprises at least one filler, at least a fibrous material, at least one binder, at least one lubricant, at least one or more abrasives, and a first carbonaceous material having a particle size distribution such that it has a D greater than at least 10 μm 50 and a second carbonaceous material having a particle size distribution such that it has a D less than at least 10 μm 50 The asbestos-free friction material composition and related brake pads comprising the same.

The present invention discloses a fire smoke particle detection device and method based on scattering differential spectrum. The combination of an aerosol generator and an air pump can simulate a smoke environment and adjust the concentration of smoke particles in the environment to maintain the stability of the smoke environment. A xenon lamp is used as a light source to provide a wide-band spectral output. A reflective spectrometer detects the spectral characteristics of light, and a polarizer and a photoelastic modulator are used to convert the light into linearly polarized light, which is then irradiated on smoke particles to generate scattered light in different directions. The polarizer can receive scattered light in different directions through a rotating base and only allows light with a specific polarization angle to be transmitted to the detector, thereby simulating different smoke particle emission conditions and obtaining corresponding scattered photoelectric signals. Finally, a Labview program is used to deduce the matrix elements of the fire smoke particles, and then the type and particle size of the smoke particles are calculated, so that the present invention has good real-time performance and accuracy.

A diffuser device (1) for a device (3) for determining particle emissions from brakes is shown and described. The diffuser device (1) comprises a housing (5) extending along a flow direction (9), which defines an interior space (11) widening along the flow direction (9) and separates the interior space (11) from an environment (13) of the diffuser device (1) perpendicular to the flow direction (9). The housing also includes a subdivision unit (7) extending along the flow direction (9) that divides the interior space (11) into several sections perpendicular to the flow direction (9). A corresponding device (3) is also shown and described.

The utility model discloses a particle emitter with changeable width, which relates to the technical field of particle emitters, and comprises a shell cover, a motor arranged at the bottom of the shell cover, and an emitting rotating head connected with the output end of the motor and rotationally arranged in the shell cover, the emitting rotating head comprises a chuck, blades and a direction adjusting sleeve, dovetail grooves are formed in a chuck body of the chuck in the radial direction, dovetail clamping heads matched with the dovetail grooves in shape are arranged on the bottom edges of the blades, the blades are inserted into the dovetail grooves of the chuck through the dovetail clamping heads, positioning holes perpendicular to the dovetail grooves are formed in the positions, corresponding to the dovetail grooves, of the chuck body of the chuck, and positioning grooves are formed in the positions, corresponding to the positioning holes, of the dovetail clamping heads. And positioning pins are arranged in the positioning holes and penetrate through the positioning grooves to lock and fix the blades. The blades are detachably installed through the dovetail grooves and the positioning pins, the dovetail grooves are matched with the blades with different widths, and therefore the purpose of adjusting the width of the particle beam is achieved, the structure is simple, and replacement is convenient.

The utility model discloses a small-sized floating particle impact cabin, which relates to the technical field of workpiece burr processing equipment, and comprises a cabin body and a particle emitter, the emitting end of the particle emitter is communicated with the cabin body through an emitting window, vertical guide rails are fixed on side panels of the cabin body on two sides of the emitting window, and the vertical guide rails are connected with the emitting window. A sliding block is arranged on the guide rail in a sliding mode. A machine shell of the particle emitter is fixed to the sliding block. A connecting plate is further fixed to a machine shell of the particle emitter, the connecting plate is rotationally connected with one end of a connecting rod, the other end of the connecting rod is rotationally connected with a horizontal eccentric shaft of a rotating disc, and a horizontal center shaft of the rotating disc is installed at the top of the cabin body through a bearing seat, connected with the output end of a driving motor and driven by the driving motor to rotate. According to the utility model, the particle emitter can perform lifting motion for shot blasting in the process of emitting particles, so that the distribution area of shot blasting is enlarged, the efficiency is high, the shot blasting effect is stable, and the processing requirements of workpieces are met.

The present invention discloses a device for testing and researching the emission and effective monitoring of hail particles in wind and hail disasters. The device is mounted on a bracket via a steering device and specifically includes a hammer, a transmission mechanism, a locking mechanism, and a firing mechanism. The left end of the hammer is connected to the transmission mechanism, and the lower end of the hammer is provided with a locking mechanism for limiting the hammer's rightward movement. The right end of the hammer is connected to the firing mechanism, and a laser speed measuring device is provided at the end of the firing mechanism. The present invention has a simple and reliable structure, and its parts can be replaced at any time. The emission angle, emission speed, and particle size of hail particles can be flexibly adjusted to study the effects of the emission angle, speed, and particle size of hail particles on structures. Semi-automatic / automatic emission can also be achieved, significantly improving test efficiency. This device is innovative and provides a practical device for studying the effects of wind and hail on structures, which is urgently needed for studying the reduction and prevention of wind and hail disasters in greenhouses, buildings, wind turbines, and other large-scale projects.

The application discloses a kind of coupling centrifugal separation's airflow sound source smoke elimination device and method.First airflow sound source and second airflow sound source are installed on box, first airflow sound source and second airflow sound source are respectively used to inhale and discharge airflow, dust collection drawer is connected to the bottom end of box, for collecting separated solid particles, guide mechanism and inner cylinder are fixedly connected in the lower part of box, air inlet pressure regulating assembly is fixedly connected in the upper part of box, and air inlet pressure regulating assembly is fixedly connected between first airflow sound source, cyclone vane and cylinder diameter adjusting mechanism are installed on inlet orifice plate, support tile is movably installed on inlet orifice plate along the radial direction of inlet orifice plate, a straight plate is provided between every two adjacent support tiles, and sliding vane two ends are respectively connected with resonant cavity sleeve and support tile.The application fully utilizes the discharged airflow of airflow sound source to realize self-induction and self-discharge of flue gas, realizes efficient purification of smoke and control of particle emission, and improves visibility of fire scene when fire occurs.

An asbestos-free friction material composition and a related brake pad for a vehicle, in particular for an electric vehicle, having improved friction stability, reduced tendency to creep chatter noise and lower particle emissions wherein the composition comprises: at least one filler; at least a fibrous material; at least one binder; at least one lubricant; at least one or more abrasives; at least a first carbonaceous material having a particle size distribution such that D50 is greater than 10 [mu] m; and at least a second carbonaceous material having a particle size distribution such that it has a D50 of less than 10 [mu] m.

This application relates to the use of a lubricating composition comprising a base oil or base oil mixture having a viscosity (BOV or base oil viscosity) of 4 or less for reducing particulate emissions from an engine. This application relates to the use of a lubricating composition comprising a base oil or a mixture of base oils for reducing particulate emissions from an engine, wherein the base oil or the base oil mixture has a kinematic viscosity of 4.5 mm 2 / s or less measured at 100 °C, and wherein the lubricating composition has a viscosity of 2.4 mPa·s -1 or more at 150 °C under constant shear.

According to the device for recovering the moisture in the desulfurized flue gas of the coal-fired power plant, the desulfurized flue gas 201 flows through the device 101 for recovering the moisture in the desulfurized flue gas of the power plant from bottom to top, and in the process, pollutants such as tiny liquid drops 202 and dust particles 203 in the flue gas 201 are captured by the device 101 for recovering the moisture in the desulfurized flue gas of the power plant and condensed and recovered. Compared with a tube bundle recoverer used by a desulfurization device of a coal-fired power plant at present, the distance from particles to the surface of a tube wall is shorter, the particles are captured by the tube wall more easily, resistance is small, emission is less, cleaning is easy, occupied space is small, cost is low, moisture in flue gas obtained after desulfurization of the power plant can be efficiently recovered, and meanwhile particle emission is greatly reduced.

Provided are a computer program, information processing method, learning model generation method, and information processing device that can be expected to assist countermeasures against particles produced inside a processing container of a substrate processing device.　A computer program according to an embodiment of the present invention causes a computer to execute processing for: acquiring particle data including position information of particles generated inside a processing container of a substrate processing device; inputting the acquired particle data to a learning model that has undergone machine learning in which the particle data is received as input and information concerning the emission sources of the particles is output; acquiring information concerning the particle emission sources output by the learning model; and outputting the acquired information concerning the particle emission sources.

The invention discloses a device for detecting the flight speed of a cold spraying single particle. The device comprises a vacuum cavity, a particle emission system and a signal detection system, the vacuum cavity comprises a top cover, a side wall and a bottom cover and is used for providing a vacuum environment for particle flight and electrode work; the particle emission system comprises an emitter, an emitter sealing ring and a base material; the signal detection system comprises an electrode, a bracket and an insulating pipeline and is used for detecting the flight speed of particles; the top cover and the bottom cover are made of toughened glass with high light transmittance so as to determine the focusing position of the pulse laser; the insulating pipeline support is provided with the magnet, and the vacuum environment is not damaged when the internal structure of the device is adjusted. The device has the advantages that low-cost speed measurement of particles can be achieved, the vacuum environment is more beneficial to particle flight and electrode work, and the position of an internal structure can be adjusted through external traction.

The invention provides a wood fiber micro-nano fragmentation combined type conductive particle emission device, which comprises an air supply system, an emission control device, a recovery control device, an emission valve and a recovery valve, and is characterized in that the air supply system comprises an air storage device, a secondary pressure reducing valve and a two-position five-way single control solenoid valve; the pressure needed by opening and closing of the launching valve and the recovery valve is adjusted and controlled through the second-stage pressure reducing valve, it is guaranteed that the pressure provided by the gas storage device is kept at a constant value, meanwhile, a valve opening of the launching valve and the launching cavity are located at the coaxial position during launching every time, and therefore the stability of the launching speed every time is guaranteed. The emission and recovery control device is realized in an energy conversion manner, and the energy relationship in the emission and recovery device is changed through different power-on states of an emission magnet, so that the particles are emitted into the crushing cavity, or the particles are recovered from the crushing cavity through attraction generated by the emission magnet; the size of the energizing current is changed to adapt to the conditions of conductive particles with different particle sizes and emission cavities with different lengths.

The invention provides a non-rotation treatment head for tumor treatment, and belongs to the technical field of treatment heads for tumor treatment, the non-rotation treatment head comprises a pair of yokes, the outer side walls of the yokes are fixedly connected with metal plates, the two opposite metal plates on the yokes are connected through an assembly module, the inner side of a vacuum layer is provided with a cold shield, and the inner side of the cold shield is provided with a vacuum layer. A liquid nitrogen groove is formed in the inner side of the cold shield, side particle beam vacuum channels are reserved in the inner sides of the composite super magnets, an inner particle beam vacuum channel is horizontally formed in the position, between the two sets of composite super magnets, in the liquid nitrogen groove, and a beam distribution vacuum chamber is formed in the left side of the yoke. The left side of the beam distribution deflection magnet is provided with a particle emission device. The problems that an existing treatment head for tumor treatment is heavy in whole equipment, high in manufacturing cost, huge in size, large in driving force needed during rotation, large in energy consumption, large in inertia, difficult to brake and quite inconvenient to use are solved.

An asbestos free friction material composition and associated brake pad for vehicles, in particular for electric vehicles, having an improved friction stability, a reduced creep groan noise propensity and a lower particles emission, wherein the composition comprises at least one filler, at least a fibrous material, at least one binder, at least one lubricant, at least one or more abrasives, at least a first carbonaceous material having a particle size distribution such as to have a D50 higher than 10 μm and at least a second carbonaceous material having a particle size distribution such as to have a D50 less than 10 μm.

The invention discloses a lithium battery thermal runaway particle emission transportation device, which comprises a test container, which is suitable for accommodating a lithium battery and is provided with a puncture passing port, a cable passing port and an emission passing port; the puncture device is provided with a puncture piece, and the puncture piece is suitable for penetrating through the puncture port to puncture the lithium battery; the cable penetrates through the cable passing opening to be connected with the lithium battery and is suitable for triggering thermal runaway of the lithium battery; the pipeline is connected with the discharge port; the sampler is connected with the pipeline, an air extracting pump is arranged on the sampler, and the air extracting pump is suitable for extracting air at a preset flow so that the sampler can collect emissions after thermal runaway of the lithium battery; and the particle counter is connected with the pipeline and is suitable for recording the concentration of the particulate matters. According to the conveying device for the particle emissions after the thermal runaway of the lithium battery, the particle emissions can be conveniently and quantitatively analyzed, and the conveying device has the advantages of being high in accuracy, high in applicability and the like.

The invention discloses an airflow sound source smoke abatement device and method coupled with centrifugal separation. The first airflow sound source and the second airflow sound source are both installed on the box body and used for sucking and discharging airflow respectively, the dust collection drawer is connected to the bottom end of the box body and used for collecting separated solid particles, and the guide mechanism and the inner barrel are both fixedly connected to the lower portion of the box body and used for guiding the dust collection drawer to be separated. The air inlet pressure adjusting assembly is fixedly connected to the upper portion of the box body and fixedly connected with the first airflow sound source, the rotational flow blades and the barrel diameter adjusting mechanism are both installed on the inlet hole plate, the supporting tiles are installed on the inlet hole plate in the mode that the supporting tiles can move in the radial direction of the inlet hole plate, and a straight plate is arranged between every two adjacent supporting tiles. Two ends of the sliding blade are respectively connected with the resonant cavity sleeve and the supporting tile. According to the invention, the airflow discharged by the airflow sound source is fully utilized to realize self-introduction and self-discharge of smoke, so that efficient smoke purification and particle discharge control are realized, and the visibility of a fire scene when a fire occurs is improved.