52 results about "Inertial impaction" patented technology

Face masks for use in pressurized drug delivery applications, such as aerosol drug delivery systems, and a method of reducing aerosol deposition in the region of the eyes are presented. The face masks according to the various embodiments disclosed herein contain features that reduce the inertia of the aerosolized drug in perinasal areas. This results in a reduction in the amount of aerosolized drug that is deposited in the region of the eyes by inertial impaction, while at the same time, the features are constructed to maintain the flow of the aerosolized drug into the face mask so that the aerosolized drug is effectively delivered to the respiratory system of the patient.

The invention provides a gas-liquid separation device for de-foaming gas. The gas-liquid separation device comprises a cyclone shell body, and a centrifugal de-foaming part and a secondary chemical de-foaming part which are arranged in the cyclone shell body, wherein the centrifugal de-foaming part is arranged at the lower part of the cyclone shell body and comprises a cyclone inner barrel, and arotary blade assembly and an exhausting pipe which are arranged in the cyclone inner barrel; the rotary blade assembly sleeves the outer side of the exhausting pipe; the secondary chemical de-foamingpart is arranged at the upper part of the cyclone shell body and comprises a de-foaming net arranged above the cyclone inner barrel in the device, and a corrugated plate arranged above the de-foamingnet. De-foaming methods including a centrifugal field, inertial impaction, super-hydrophobic surfaces and the like are reasonably and effectively matched together, and rapid de-foaming can be realizedthrough combining a mechanical method and a chemical de-foaming mechanism; compared with an existing chemical de-foaming method, the operation cost is greatly reduced and a pre-separation process ofgas and liquid phases also can be realized, so that the generation of secondary foam can be effectively reduced.

There is provided a modularized hybrid dust collector for treating dust generated in various industrial processes. The box-shaped hybrid dust collector includes a first box-shaped dust collecting unit or a first cylindrical dust collecting unit, to which the inertial impaction and the principle of collecting dust using the centrifugal force are applied, and a second box-shaped dust collecting unit implemented by a dust collecting filter such that a problem of employing a cleaner and a limit of capacity, of a conventional cylindrical dust collector, can be overcome, and a high capacity modularized hybrid dust collector in which the box-shaped hybrid dust collector as a basic module and a plurality of dust collector modules are combined.

The invention discloses a controlling method and a controlling device of the smooth starting or braking of a swing mechanism; the controlling method comprises the specific steps: when the swing mechanism is started, a control signal inputted into a rotation power outputting mechanism ascends ramp step by ramp step with the time change; when the swing mechanism is braked, a control signal inputted into the rotation power outputting mechanism descends ramp step by ramp step with the time change; by the changes, an impact frequency is obtained and a natural frequency generated by inertial impactions is weakened, thus realizing starting or braking quickly and smoothly. The device comprises an inputting device which is used for inputting a command controlling the rotation of the swing mechanism, a controller and the rotation power inputting mechanism; when the controller outputs a controlling command for starting, the wave shape of an outputted starting signal ascends ramp step by ramp step with the time change; when the controller outputs a controlling command for braking, the wave shape of an outputted braking signal descends ramp step by ramp step with the time change; and the rotation power outputting mechanism is used for driving the swing mechanism to rotate.

Actuators for an aerosol inhalation device containing a housing adapted to receive an aerosol canister containing a pressurized medicament formulation, a mouthpiece portion through which the user inhales, a nozzle block and an orifice and a tubular element extending in the mouthpiece portion from the orifice aperture in a longitudinal axis substantially aligned with a longitudinal axis of the mouthpiece portion provide a significant reduction in the non-respirable, coarse fraction of the emitted aerosol medicament via inertial impaction and retention in the actuator than in the oro-pharynx, with consequent less associated side effects and oral candidiasis in the patient. In addition the presence of the tubular element has minimal, negligible impact on the fine particle dose and on the particle size distribution (PSD) of the delivered particles having aerodynamic diameter lower than 9 μm.

The invention discloses a coagulation-enhanced type cyclone dedusting and demisting device, belonging to the field of waste gas treatment. The device comprises a cylindrical outer barrel and m cyclone assemblies; each cyclone assembly comprises a plurality of cyclone blades and a center cylinder, wherein the cyclone blades are evenly distributed in a ring-shaped area between the outer wall of the corresponding center cylinder and the inner wall of the cylindrical outer barrel at an inclined angle; n stages of coagulation devices are arranged in the cylindrical outer barrel at the parts among the at least one group of connected cyclone assemblies. The coagulation devices are additionally arranged among the cyclone assemblies, so that the probabilities of inertial impaction, intercept and coagulation between fine-particle dust and sprayed coagulated liquid drops are improved, the capture property of the dust is improved, the removal efficiency is increased under the condition of the same stage number of cyclone assemblies, or to say, the stage number, needed by reaching the equal efficiency, of the cyclone assemblies is reduced, and the investment and the running costs are lowered.

Various embodiments described herein relate to apparatuses and methods for detecting fluid particles and their characteristics. In various embodiments, a device for detecting fluid particles and their characteristics may comprise a lens free holographic microscope configured to collect fluid particles via inertial impaction. In various embodiments, the collection media may be replaceable within the apparatus. In various embodiments, the impactor nozzle may be selectively configured to avoid optical reflections and scattering from illumination light passing through the nozzle. Various embodiments are directed to a collection media assembly for receiving particles from a volume of fluid within a fluid composition sensor. A collection media assembly may comprise a collection media, an orifice, a seal engagement portion and a frame element configured to facilitate the serial use of a plurality of collection media assemblies within a fluid composition sensor.

The invention discloses a miniature coal-fired boiler dust collector. The miniature coal-fired boiler dust collector is built at a dust outlet of a boiler, is made of bricks and reinforced concrete and is divided into two parts, the two parts comprises an upper chamber comprising an upper dust chamber, an upper chamber oblique body 1, an upper chamber oblique body 2 and a chimney and also comprises a lower chamber comprising a dust inlet, a water tank, a dust outlet 1, a dust outlet 2, a lower chamber oblique body, a lower chamber vertical plate 1, a lower chamber vertical plate 2 and an automatic water supplement port. Smoke is blown into the water tank of the lower chamber from the dust inlet so that a lot of water splashes and fully contacts with dust, through inertial impaction, adhesion, diffusion, drifting and coacervation action, the most dust particles are mixed with water, the large dust particles settle into the water tank under the action of gravity and automatically slips into the dust outlet 1, the middle and small dust particles go through the vertical plate 1 and the vertical plate 2 of the lower chamber, the middle dust particles fall into the dust outlet 2 of the lower chamber, the miniature dust particles are lifted to the upper chamber by smoke, is blocked by the upper chamber oblique body 2 and falls into the dust outlet 2, and a part of the miniature dust particles slide into the dust outlet 2 along the upper chamber oblique body 1. The miniature coal-fired boiler dust collector can regularly clean the dust outlet 1 and the dust outlet 2. When a water level is decreased, the miniature coal-fired boiler dust collector can realize automatic water supplement by the automatic water supplement port.

An air-flotation swirling flow contactor and an air-flotation swirling flow system belong to the technical field of air floatation separation. The contactor is characterized by comprising a conical barrel (1), and the side wall of the conical barrel (1) is connected to a tangentially-arranged liquid inlet pipe (5); the top of the conical barrel (1) is provided with an air outlet (2), and the bottom is provided with a liquid outlet pipe (6); and the outer end part of the liquid inlet pipe (5) is provided with two branch pipes. According to the technical scheme, a swirling flow way is used to mix gas-dissolved water and sewage together, the mixed liquid makes low-intensity swirling motion in the contactor, and collision between bubbles and suspended particles is caused because of the movement of the suspended particles and the bubbles and change of a streamline, so that the inertial collision and the centrifugal sedimentation collision of the bubbles and suspended matters are effectivelyenhanced, the contacting effect of the bubbles and the suspended matters is promoted, the separation effect of air floatation is improved, and the handling capacity is substantially improved.

The invention provides a high-precision water filtration purification treatment process. The process is characterized by adopting 1) filtration treatment through gravity action, 2) filtration treatment through inertial impaction, 3) filtration treatment through direct interception and 4) filtration treatment through permeation step by step when a water body passes through a filter element. The process has the characteristics of high efficiency and high purifying rate and is simultaneously suitable for large-area use for various industrial water sources.

Combustion air intake ports are provided on left and right side faces of an upper part of an engine cover. An outer louver is disposed to confront the combustion air intake port, and an inner louver is disposed inward of the outer louver at a predetermined interval to face the outer louver. The combustion air received from the combustion air intake port passes through the outer louver and the inner louver and is guided to the engine unit from the guide hole. In this case, a splash of water is dispersed in the outer louver, and a large-sized water droplet falls down due to its self-weight before the combustion air reaches the inner louver, so that a small-sized water droplet can be collected and removed using inertial impaction at the inner louver. Therefore, it is possible to effectively separate water.

The present invention is related to a white smoke gas reduction device comprising: a white smoke gas introduction device for introducing a white smoke gas; an inertial impaction-type heat, exchange device tor removing fine dust included in the introduced white smoke gas in the manner of the inertial impaction, for cooling the white smoke gas through heat exchange so as to be converted to low-level white smoke gas, and for removing moisture within the white smoke gas through the condensation and the impaction; and a condenser for cooling a refrigerant, which is used for the heat exchange in the inertial the impaction-type heat exchange device, and then returning the same to the inertial the impaction-type heat exchange device.

The invention provides a double-wing safety rotating door which comprises a movable leaf, a fixed leaf, a driving system and a control device. The driving system comprises a rotating driving device and an arc door wing reverse driving device; and both the rotating driving device and the arc door wing reverse driving device are connected with the control device. The rotating door can be automatically retarded or stopped in a rotation danger collision region; inertial impaction to the rotating door is reduced; and human bodies can be effectively protected and are avoided being jammed or collided by the automatic door.

The invention relates to a dust collector, and aims at providing a combined type flat cloth bag pulse dust collector having strong ash removal capability, high dust removal efficiency and low emission concentration. The dust collector comprises an upper box body, a middle box body and a lower box body which are integrally assembled from top to bottom. A cover plate is welded to the middle portion of the upper box body, an air outlet is arranged at the bottom of the upper box body, a poppet valve is disposed in a pipeline of the air outlet, a pulse valve is arranged at the outer side portion of the upper box body, filter bags are welded to the middle box body, and an ash bucket and an air inlet are arranged in the lower box body. In the combined type flat cloth bag pulse dust collector, dusty gas goes into the ash bucket through the air inlet, part dust particles with larger size fall into the ash bucket due to inertial impaction and natural sedimentation, and other dust particles are risen by airflow and go into bag chambers. After being filtered by the filter bags, the dust particles are remained on the outer sides of the filter bags, the purified gas goes in the upper box body from the filter bags, and then are exhausted outside via the air outlet. The combined type flat cloth bag pulse dust collector has the strong ash removal capability, high dust removal efficiency and low emission concentration.

The invention discloses an environment-friendly front fresh air curtain connected with a smoke hood. The air curtain comprises a mounting plate, a cooking bench is fixedly mounted at the top of the mounting plate, and a control panel is fixedly mounted at the outer side of the cooking bench. The air curtain is compact in structure, easy, rapid and convenient to operate, and high in practicability, a smoke collecting mechanism is arranged to be matched with the fresh air curtain, smoke generated when a gas stove works can be fully collected, a spraying filtering mechanism is arranged, water or other washing agents are adopted, a water film and water mist are formed in a spraying manner of a spraying head to absorb the smoke, smoke particles make contact with the water film and the water mist sprayed out of a spraying nozzle, through mutual inertial collision, retention, diffusion of fine particles, mutual condensation and other actions, the smoke can be fully filtered, and meanwhile, through cooperation with a buffer scattering mechanism, the smoke rising at a high speed can be scattered, so that the water film, the water mist and the smoke can make full contact, the smoke purification effect is further improved, and the practical use is facilitated.