64 results about "Air barrier" patented technology

An airflow system for buildings, and its method of use, is provided to provide pollution mitigation for occupants of a building. An airflow system for a building is provided, comprising: at least one air purification system that provides purified air and receives recirculated air; at least one supply air assembly that supplies purified air from the air purification system to at least one internal airflow space, the internal airflow space including one or more office cubicles, meeting rooms, and auditoriums; at least one return air assembly that returns recirculated air from at least one internal airflow space back to at least one air purification system; directional airflows formed between the supply air assembly and the return air assembly, including a first directional airflow and a second directional airflow that form one or more air barriers between occupants to provide respiratory isolation, the second directional airflow forming an airflow field around each occupant; and at least one control system that controls the airflow system. The airflow system provides pollution mitigation for each occupant.

The utility model provides a laser probe protection mechanism of a laser navigation forklift type AGV, and relates to the field of AGVs. The laser probe protection mechanism of the laser navigation forklift type AGV trolley comprises a split-type fixed seat and a protective cover used for providing external protection for a laser probe, and the fixed seat comprises a seat plate and a damping cushion block which are fixedly connected. According to the laser probe protection mechanism of the laser navigation forklift type AGV trolley, external protection can be provided for a laser probe in the use process of the AGV trolley through the arrangement of the protection cover on the fixed seat, and an annular air barrier can be formed outside a spherical cover through the arrangement of an air curtain mechanism on the outer side of the fixed seat, namely the cooperative use of multiple groups of flow guide seats and an air pump; the dust and water mist attachment is continuously blocked, the manual cleaning frequency is reduced, then stable self-cleaning protection is provided for the protective cover, through modular split type arrangement of the fixing base, the protective cover and the air pump, workers can conveniently disassemble, assemble and replace independent parts, and the maintenance cost is reduced.

An airflow system for buildings and a method of using the same are disclosed to provide pollution mitigation for occupants of a building. The airflow system includes: at least one air purification system for providing purified air and receiving recirculated air; at least one supply air assembly for supplying purified air from the air purification system to at least one internal airflow space, the internal airflow space including one or more of a corridor, cafeteria, restroom, and elevator; at least one return air assembly for returning recirculated air from at least one internal airflow space to at least one air purification system; directional airflow formed between the supply air assembly and the return air assembly, and including at least one or more of a directional airflow field around each occupant, an air barrier located between each occupant, and an airflow field around each occupant; and at least one control system for controlling the airflow system. The airflow system provides pollution mitigation for each occupant.

This invention discloses a tunnel smoke treatment and fire rescue system based on an air barrier. A pulley is installed on a guide rail, with its lower end connected to the upper end of a first telescopic rod. The lower end of the first telescopic rod is connected to a groove at the tail end of a fan. A first filter, a second filter, and a third filter are sequentially installed inside the duct along the gas flow direction. A first pipe is installed on the first filter. A third pipe is installed at the top of the tunnel, and the third pipe is connected to an atomizer via the second pipe. The nozzle of the atomizer is located inside the exhaust port of the fan. The fire protection system includes a fire extinguisher, a directional rod, a fourth pipe, a fifth pipe, and a second telescopic rod slidably connected to the guide rail. The lower end of the second telescopic rod is connected to the fire extinguisher via the directional rod. A second bracket is installed at the front end of the fire extinguisher, and the nozzle of the fire extinguisher is fixed to the second bracket. This system can avoid traffic congestion at the tunnel entrance and simultaneously prevent harmful smoke and high temperatures from threatening the personal safety of firefighters.

There is provided an airflow system for a building. The airflow system includes at least one air purification system providing purified air and receiving recirculated air; at least one air supply assembly supplying the purified air from the air purification system to at least one interior airflow space including one or more of, an office cubicle, a conference room, and an auditorium; at least one air return assembly returning the recirculated air from the at least one interior airflow space to the at least one air purification system; directional airstream(s) formed between the air supply assembly and the air return assembly, including first directional airstream(s) forming one or more air barriers between occupants, to provide respiratory isolation, and second directional airstream(s) forming an airflow field around each occupant; and at least one control system controlling the airflow system. The airflow system provides a contamination mitigation for each occupant.

The present application belongs to the technical field of polishing device, disclose a kind of polishing device for stainless steel casting production, comprising: frame and drive motor, the output shaft of drive motor is equipped with polishing wheel, the inside of polishing wheel is equipped with air inlet passage, the output shaft of drive motor is hollow shaft, its pipe wall is equipped with gas outlet, the air outlet of output shaft is connected with the air inlet passage of polishing wheel, to form dust adsorption path from polishing point to the inside of output shaft;The inside of the output shaft of drive motor is equipped with fluid delivery component, and the stretchable piece is equipped between the fluid delivery component and frame;The beneficial effects of the present application are: fluid delivery component constructs two-way air circulation system, realizes the integration dust control from polishing point direct adsorption, efficient filtration to clean air barrier, maximally reduces dust diffusion, improves work environment, reduces threat to operator health.

In certain embodiments, the disclosed sealant comprises a one-component, closed-cell, semi-foam, sealant using gas-filled, flexible, organic microspheres to create a product that is elastic and compressible under pressure without protruding in an outward direction when compressed, thereby allowing the applied sealant to compress in an enclosed, maximum-filled channel unlike typical mastic sealants (while retaining the ability to rebound). This allows the sealant to function as a gasket, and, once fully cured, to have properties including vibration damping, insulating, and condensation resistance. The sealant can be formulated as an air barrier or a vapor barrier and at various degrees of moisture resistance. It may be applied by different packaging variations including aerosol can (bag in can or bag on valve), airless sprayer, cartridge tubes, foil tubes, squeeze tubes, and buckets to be applied using a brush, trowel, spatula, etc. The disclosed sealant can also be formulated to be smoke-resistant and flame-resistant.

The ammunition is used on a drone interceptor to combat other drones. The ammunition fires a propeller snare. Ammunition comprises multiple charges with separate electric activation for a multiple attack possibility. The rope forms an air barrier from the moment the shot is fired, it allows the target's propeller to become entangled at a short distance. Twisting the rope increases the likelihood of entanglement on the target. The design of the projectile reduces the likelihood of ricochet. Projectile filled with extra length of rope, it increases the likelihood of entangling the target's propeller. The ammunition is attached to the activation unit. The activation unit is attached to the weapon carrier. The low weight of the weapon allows it to be used on small interceptor drone.

The invention relates to a concentric loose coupling partition combustion chamber and a combustion organization method thereof. The concentric loose coupling partition combustion chamber comprises a diffuser, a combustion shell, a combustion assembly and a flame tube. The combustion assembly comprises an auxiliary mold nozzle, a main mold nozzle, an auxiliary mold swirler and a main mold swirler. An annular non-rotation air channel is defined between the inner wall of the main mold swirler and the outer wall of the main mold nozzle. A preset included angle is formed between the direction of main mold fuel sprayed by the main mold nozzle and the central axis of the combustion shell, the non-rotation air channel can form an annular air barrier, and under the medium and low working conditions, the air barrier can prevent the main mold fuel from entering a main mold combustion area so that the main mold fuel can enter an auxiliary mold combustion area, and under the high working condition, the main mold fuel can be prevented from entering an auxiliary mold combustion area. The primary mold fuel can pass through the air barrier and into the primary mold combustion zone. Therefore, partitioned combustion under different working conditions can be realized, the reliability of ignition and the stability of combustion under medium and low working conditions are ensured, the combustion efficiency under high working conditions is improved, and the condition of smoking is avoided.

The embodiment of the utility model provides a belly camera decontamination system based on a five-unmanned aerial vehicle platform, and relates to the field of camera cleaning. The belly camera decontamination system based on the Yangfive unmanned aerial vehicle platform comprises a camera, an in-machine cold air module, a cleaning module and a barrier module, the camera decontamination system is used for providing gas, the cleaning module is connected with the in-machine cold air module and used for cleaning the camera under the pressure of the in-machine cold air module, and the barrier module is connected with the in-machine cold air module and used for cleaning the camera under the pressure of the in-machine cold air module. The barrier module is used for forming an air barrier in front of the camera. High-pressure gas is provided for the cleaning module and the barrier module by using the idle built-in cold air module in flight, so that the power consumption can be reduced; the barrier module sprays gas towards the camera under the pressure of the cold air module in the camera, so that an air barrier is formed in front of the camera, and invasion of oil stains and dust to the camera in the flying process is effectively blocked; and the cleaning module can spray a cleaning solution towards the camera under the pressure of the built-in cold air module.

The utility model provides a connection node heat preservation structure suitable for an ultra-low energy consumption building curtain wall, a buried plate and a first heat insulation cushion block are fixed on a building outer wall through mechanical anchor bolts, and the side edge of an aluminum alloy insertion core is fixedly connected with the face, away from the building outer wall, of the buried plate; the horizontal plane of the aluminum alloy ferrule is fixed with the second heat-insulating cushion block through a first galvanized steel plate; one end, far away from the building outer wall, of the second galvanized steel plate is fixed on the upper side wall of the aluminum alloy cross beam through a fastener, and the other end is fixed on the building outer wall through a fastener; one end of the powder spraying aluminum plate is fixed to the aluminum alloy cross beam and extends in the length direction of the building outer wall. First fireproof rock wool is filled between the powder spraying aluminum plate and the building outer wall; an airtight adhesive tape and a PE foaming heat insulation material are filled between the aluminum alloy cross beam and the aluminum alloy buckle cover; the first glass curtain wall and the second glass curtain wall are connected through a fluorocarbon spraying aluminum plate and a third galvanized steel plate, and the space between the first glass curtain wall and the second glass curtain wall is filled with heat preservation rock wool and a waterproof gas-isolating film. Second fireproof rock wool is filled between the third galvanized steel sheet and the building outer wall.

An air knife is used for cleaning the surface of a battery piece and comprises a metal air pipe, a cavity is formed in the air pipe, an air inlet hole is formed in the air pipe, air hole sets distributed in parallel are formed in the end face of the air pipe, the air hole sets are composed of equidistant air holes, and a specific included angle is formed between the connecting line of the axes of the air holes and the moving path of the battery piece. And uniform airflow is provided for cleaning the electroplating liquid on the surface of the battery piece. The nozzle air knife assembly comprises two oppositely-arranged air knives, the air hole sets are opposite, a battery piece conveying space is reserved, the upper end surface and the lower end surface of a battery piece are cleaned at the same time, and a support is further arranged. The battery piece is driven by the conveying device to horizontally move between the two air knives, high-pressure gas is conveyed into the air pipes, air is blown to the surface of the battery piece from the air hole sets, air barriers are formed through airflow matching of the upstream air hole sets and the downstream air hole sets, the tension of electroplating liquid is broken, and surface cleaning of the battery piece is achieved.

This utility model discloses a well-sealed spiral duct, belonging to the technical field of spiral ducts. It includes two spiral tubes, each with a gasket fixedly installed on one side of the tubes closest to each other, and a flange gasket placed between the two gaskets. A fixing mechanism includes a positioning ring located between the two spiral tubes, which engages with the two gaskets. A sealing mechanism includes a wedge-shaped top ring and a wedge-shaped retaining ring, with the wedge-shaped retaining ring fixedly installed on the inner wall of the lower spiral tube and the wedge-shaped top ring fixedly installed on the inner wall of the upper spiral tube. The flange gasket employs an arc-shaped hole annular array structure to form a double-layer sealing layer, enhancing sealing performance through air barrier effect. Compared to traditional single-layer gaskets, this significantly improves airtightness. The wedge-shaped fit structure of the top and retaining rings, combined with the elastic deformation of the annular rubber gasket, achieves axial compression sealing, forming a dual guarantee of mechanical and soft sealing.

The utility model discloses a building facade hidden frame photovoltaic curtain wall which comprises a supporting structure, one side of the supporting structure is connected with a building structure layer, the other side of the supporting structure penetrates through an inner layer heat preservation plate and is connected with a photovoltaic panel, and the supporting structure comprises a first connecting part and a second connecting part. One end of the first connecting part is fixedly connected with the building structure layer, and the other end is connected with one end of the second connecting part; the photovoltaic panel comprises a moisture-proof vapor-proof layer, an outer-layer heat preservation plate, a photovoltaic frame, an air layer, a structural adhesive layer and a photovoltaic assembly which are sequentially arranged from inside to outside. The other end of the second connecting part is connected with the photovoltaic frame; the composite board has the functions of protection, sound insulation, heat preservation and heat insulation, provides electric power for a building, serves as an outer facing layer of the building, provides safety protection and attractive appearance, and achieves integration of design, manufacturing and installation.

The invention relates to the technical field of smart home, and particularly discloses a smart home monitoring camera system which comprises a shell and an end cover fixedly mounted on the side wall of the shell, a mounting cavity is formed in the inner side wall of the end cover, and a transparent dustproof cover is fixedly mounted on the inner side wall of the mounting cavity. The air supply states of the spiral pipe and the convection pipe are intelligently switched, double-layer dynamic dust prevention is achieved in combination with the cleaning assembly, in daily operation, an air barrier for preventing external dust from invading the mounting cavity is effectively constructed through continuous and active spiral vortex-shaped turbulence, and the surface of the dust cover is preliminarily kept clean; once it is detected that dust accumulation caused by electrostatic adsorption and other factors exceeds a threshold value, the system is immediately switched to a powerful cleaning mode, the cleaning assembly is activated to synergistically and physically remove stubborn dust while air flow focusing impact on the surface of the dustproof cover in the convection pipe is enhanced, and then pollutants are rapidly and annularly discharged through the adjusted spiral air flow.

There is provided an airflow system for a building. The airflow system includes at least one air purification system providing purified air and receiving recirculated air; at least one air supply assembly supplying the purified air from the air purification system to at least one interior airflow space including one or more of, an aisleway, a cafeteria, a restroom, and an elevator; at least one air return assembly returning the recirculated air from the at least one interior airflow space to the at least one air purification system; directional airstream(s) formed between the air supply assembly and the air return assembly, and comprising at least one or more of, a directed airflow field around each occupant, air barrier(s) between each occupant, and an airflow field around each occupant; and at least one control system controlling the airflow system. The airflow system provides a contamination mitigation for each occupant.

This invention provides a method for preparing an air-blocking agent for tire airtight layers, belonging to the field of fine chemical technology. The method includes: Step 1: Raw ore pretreatment, using water washing to remove clay impurities adhering to the ore surface and manually removing associated minerals; Step 2: Coarse crushing, using coarse crushing equipment to crush the raw ore to 80-200 mesh; Step 3: Magnetic separation, using a magnetic separator to remove particles with high iron content from the coarsely crushed raw ore; Step 4: Integrated ultrafine grinding and modification, using a dry grinding process in a pneumatic kinetic energy mill at a temperature of 180-230℃, with the aid of additives, to crush the coarsely crushed raw ore using self-impact and self-friction methods; Step 5: Post-treatment, thoroughly mixing the ultrafine-ground and modified raw ore at a preset temperature and time. This invention effectively improves the grinding precision of black talc powder, enhances its dispersibility and rubber matrix affinity, and effectively removes associated minerals and heavy metal impurities.

The application relates to the technical field of air barrier materials, and discloses an isocyanate modified polyurethane cyanide coagulation air barrier material and a preparation method thereof. The air barrier material is made of the following components in parts by weight: 140-150 parts of isocyanate prepolymer mixed solution, 42.05-59.8 parts of modified composite powder filler, 3-5 parts of molecular sieve activated powder and 8-12 parts of bicyclooxazolidine. During preparation, the modified composite powder filler, the isocyanate prepolymer mixed solution and the molecular sieve activated powder are dispersed to obtain a composite initial slurry; the slurry is cooled to 15-20 DEG C and vacuumized, the bicyclooxazolidine is injected under the vacuum state and continues to be stirred and defoamed, then dry nitrogen is filled to remove the vacuum and the material is sealed after being divided into small portions. The material can reduce the risk of pore defects caused by carbon dioxide gas in the curing process, improve the storage stability of the material and the compactness and gas barrier performance of the cured product.

An accessible cooling environment includes a back wall, an opening opposite the back wall, a roof panel, first and second side walls at least partially defining the opening, and an interior space at least partially defined by the back wall, roof panel, and first and second side wall. A fan configured to circulate air through the interior space, an evaporator disposed inside the interior space, and an air curtain assembly configured to form an air barrier adjacent to the opening. The air curtain assembly includes one or more deflectors for separating the air barrier into a first air curtain and a second air curtain. The first air curtain has a first temperature and the second air curtain has a temperature lower than the first temperature.

The invention belongs to the field of environmental geotechnical engineering, and particularly relates to a gas barrier performance model of a composite covering barrier under dry-wet cycle and freeze-thaw cycle, comprising: a container which is in a sealed state, is internally provided with a simulated soil layer and a geosynthetic clay liner, passes through the simulated soil layer and the geosynthetic clay liner from bottom to top and has airflow for testing the gas barrier performance; pressure, temperature and humidity testing parts are arranged on the container along the arrangement direction of the simulated soil layer; a rainfall simulation module, a drying simulation module and a freeze thawing simulation module are arranged at the upper part of the container in a switchable manner and are used for influencing an experimental environment of an upper simulated soil layer; and the data monitoring system comprises a pressure gauge and a temperature-moisture sensor which are arranged on the container, and is in signal connection with a network data collector and a cloud platform. According to the invention, dry, wet and freeze-thaw circulation environments are simulated by replacing the module, and the device is used for evaluating the gas barrier performance of a covering barrier barrier or other porous media in the service period.

This utility model discloses a rapid sealing device for large-area underground roadway rescue in coal mines. It includes side columns vertically arranged along both sides of the roadway and a central column vertically arranged in the middle of the roadway. Both the side columns and the central column are telescopic supports, and jacks are installed at the bottom of each. A fixing strip of the same width is horizontally arranged at the top of the roadway, and fixing strips of the same height are vertically arranged on both sides of the roadway. It also includes an air barrier composed of multiple air barrier units connected by zippers along their longitudinal edges. The jacks are used to finely adjust the height of the telescopic supports from the bottom. The three fixing strips form a wooden sealing wall. The air barrier is fixed to the side columns, central column, and wooden sealing wall to achieve rapid sealing of the roadway. This device solves the problem that existing sealing technologies cannot meet the rapid sealing requirements of underground roadways.

This utility model belongs to the technical field of coking operation in tank furnaces, and discloses an air barrier device for coking operation in large-capacity tank furnaces. It includes a coking baffle, a coking baffle bracket installed on one side of the baffle, and a telescopic rod installed on the side of the bracket away from the baffle. This utility model allows the coking baffle to completely cover the area to be cleaned, forming a physical barrier and effectively preventing external air from entering the furnace. The telescopic rod, by adjusting its length, meets diverse coking needs. The coking baffle bracket, as a component connecting the baffle and the telescopic rod, can withstand mechanical and thermal stresses under high-temperature conditions. This device effectively blocks the entry of external air, preventing the molten glass in the large-capacity tank furnace from being contaminated by external air and airborne particles, ensuring the quality of the substrate glass and greatly reducing the possibility of producing defective substrate glass.

The invention discloses an air floatation moving bearing surface type supercritical carbon dioxide static pressure thrust bearing pressure distribution measuring device, and belongs to the field of gas lubrication and performance detection. The device mainly comprises a vibration isolation plate, a bearing platform with a pressure measuring hole, a linear air floating guide rail, an arc-shaped air floating guide rail, a double-layer chamber, a labyrinth seal, a static pressure gas bearing, a sensor and a collector. According to the device, the two-dimensional, non-contact and friction-free movement of the bearing platform is realized by combining the air floating guide rail and the labyrinth seal, the pressure measuring hole is driven to be aligned with any position to be measured, and the continuous and complete measurement of the pressure of the bearing surface is completed. An inner-layer cavity of the device is used for containing supercritical carbon dioxide and a hydrostatic bearing; compressed air is introduced into the outer-layer cavity to form a positive-pressure air barrier, so that a medium in the inner cavity is prevented from leaking to the atmospheric environment. The method solves the problem that a traditional method is limited in measuring points and cannot adapt to the supercritical carbon dioxide medium environment, and can also be used for pressure distribution testing of other high-pressure and special medium hydrostatic bearings.

The utility model relates to the technical field of plastic pipe extrusion, in particular to an annular blowing anti-slag and anti-crystallization device for plastic pipe extrusion. According to the technical scheme, the cooling device comprises a fixed ring and a rotary blowing ring, a cooling air inlet pipe is fixedly connected to the outer surface of the fixed ring, the rotary blowing ring is rotationally installed in the fixed ring, an annular airflow cavity is formed in the rotary blowing ring, and a plurality of air inlet holes are formed in the outer surface of the rotary blowing ring in an annular array at equal intervals. By forming a uniform annular air barrier on the outer surface of the extruded plastic tube, the cooling uniformity and efficiency of the extruded plastic tube are improved, the possibility of crystallization of the extruded plastic tube is greatly reduced, and meanwhile, the outer surface of the extruded plastic tube is purged by continuously changing airflow directions, so that the service life of the extruded plastic tube is prolonged. Therefore, tiny slag charge or initial crystal particles appearing on the surface of the extruded plastic pipe can be better blown away in time, the surface smoothness of the plastic pipe is improved, and the quality of the plastic pipe is reduced.

An adaptive wide-range adjustable low-emission internal combustion venting and ignition device and control strategy are disclosed, comprising an incineration tower, a main burner, an ignition / detector, a main gas flow path, an ignition gas flow path, an emergency venting flow path, an air barrier, an electric damper, a maintenance manhole, a movable base, an emission monitoring system, and an intelligent control system. The internal combustion venting and ignition device adopts a closed design, producing no open flame or black smoke during combustion; the separate design of the tower and base facilitates relocation and allows for shared use across different work locations; the main burner employs a double-layer low-NOx combustion design, which can adaptively adjust across a wide range according to the venting air volume; the burner nozzle is equipped with a low-NOx ejector nozzle, which promotes mixed combustion and achieves low-NOx and low-carbon emissions. This invention is suitable for the diverse needs of industries such as oil drilling, natural gas extraction, and chemical processing, and can completely solve the problems of existing surface flare technology, such as low processing capacity, difficulty in adapting to different working conditions, easy flame leakage from the tower, low combustion efficiency, environmental pollution, and disturbance to residents.

The invention discloses an indoor water room wall surface construction joint and reverse ridge waterproof device and a waterproof construction method.The inner flat and vertical face water-blocking and air-isolating metal plate comprises an inner bottom plate, the two sides of the inner bottom plate are connected with a first supporting plate and a second supporting plate respectively, the first supporting plate and the second supporting plate are both perpendicular to the inner bottom plate, and the first supporting plate and the second supporting plate are connected with the inner bottom plate; a first protection plate, a second protection plate, a third protection plate and a fourth protection plate are further included. The outer plane water-blocking metal plate and the inner plane water-blocking gas-isolating metal plate are spliced and welded to form the water-blocking gas-isolating wall, the water-blocking gas-isolating wall is mounted at indoor and outdoor thresholds, moisture can be prevented from diffusing outdoors along the thresholds after the water-blocking gas-isolating wall is mounted, the vertical water-blocking plates on the two sides can effectively prevent indoor moisture from being evaporated and permeating towards the outside of the wall along the two sides of the wall body and construction joints, and the water-blocking gas-isolating wall is prevented from leaking to the outside of the wall. The problems of wall root mildewing, moisture regaining, wall skin falling and the like are caused.

In one aspect, the invention is directed to a method of providing an air barrier layer to a tire comprising at least the following steps: providing a tire comprising a tire cavity and an inner surface facing the tire cavity, providing a tubular film with at least one open end, and molding at least a portion of the tubular film to form an air barrier layer adapted to the inner surface of the tire. In another aspect, a cured tire is provided which comprises a tire cavity and an inner surface facing the tire cavity, and a tubular film of molten polymer is extruded. Said film is inserted into the tire cavity of the cured tire and expanded in the tire cavity to form an air barrier layer adapted to an inner surface of the tire.

There is provided an airflow system for a building. The airflow system includes at least one air purification system providing purified air and receiving recirculated air; at least one air supply assembly supplying the purified air from the air purification system to at least one interior airflow space including one or more of, an aisleway, a cafeteria, a restroom, and an elevator; at least one air return assembly returning the recirculated air from the at least one interior airflow space to the at least one air purification system; directional airstream(s) formed between the air supply assembly and the air return assembly, and comprising at least one or more of, a directed airflow field around each occupant, air barrier(s) between each occupant, and an airflow field around each occupant; and at least one control system controlling the airflow system. The airflow system provides a contamination mitigation for each occupant.