1355 results about "Injection air" patented technology

The invention discloses carbon emission monitoring equipment for constructional engineering, which comprises a carbon emission monitor, an angle adjusting assembly, a carbon emission monitoring device, a carbon emission monitoring device, a carbon emission monitoring device, a carbon emission monitoring device, a carbon emission monitoring device, a carbon emission monitoring device, a carbon emission monitoring device, a carbon emission monitoring device and a carbon emission monitoring device, and is characterized in that the carbon emission monitoring device is arranged below the carbon emission monitoring device; the air inlet filtering assembly comprises a mounting shell fixedly connected with the fixing strip; and an air injection assembly. The device has the advantages that through the mounted dust filter screen, the fixed frame, the roller brushes and other devices, the first lead screw motor drives the first sliding block and the fixed rod to move so as to drive the two sets of roller brushes to move, and the fixed rod moves to drive the gear to be engaged with the rack, so that the roller brushes rotate to clean dust and impurities on the surface of the dust filter screen; when the dust filter screen moves to the middle of the fixing frame, the first electric telescopic rod drives the fixing frame to extrude the spring, so that the sliding block is driven to impact the interior of the sliding groove, the fixing frame continuously vibrates, impurities at small positions on the dust filter screen can be promoted to fall off, and the cleaning effect is improved.

The invention relates to the technical field of smashing, and discloses a cerium oxide airflow smashing device and a production technology.The cerium oxide airflow smashing device comprises a base, four supporting legs arranged at equal angles are arranged on the base, a first tank is connected to the supporting legs, and an air injection mechanism used for spraying high-pressure airflow and driving materials to collide with one another to be smashed is installed in the first tank; a feeding pipeline positioned above the air injection mechanism is mounted on the first tank body; the inner wall of the first tank body is provided with four cooling assemblies which are arranged at equal angles, the upper port of the first tank body is connected with a second tank body through a flange, the second tank body is provided with a grading mechanism and a discharging pipeline corresponding to the grading mechanism, and the upper port of the second tank body is provided with a top cover; according to the device, efficient production is achieved through multi-dimensional innovation, a double-layer S-shaped cooling flow channel dissipates heat quickly, and high-temperature agglomeration of materials is avoided so as to guarantee stable physicochemical properties; and the four groups of opposed nozzles form a vortex field, so that the particle size refining rate of the material is more than 90%, and the energy consumption is reduced by 35%.

The invention belongs to the technical field of permanent magnetization remanufacturing, and particularly relates to a permanent magnetization regeneration method for a waste motor of copper alloy wire processing equipment, and the method comprises the steps: disassembling a waste asynchronous motor, and reserving a case, a stator, a rotor core and a rotating shaft which are not damaged; the specifications of the air injection channels are determined according to the diameter of the rotating shaft, more than two air injection channels are arranged on the rotating shaft at equal-angle intervals, and then the rotating shaft is installed in the machine shell; the rotor core is split to obtain steel sheets, and permanent magnet grooves, magnetic isolation air grooves and air injection channel grooves are formed in the steel sheets; the permanent magnets are assembled in the permanent magnet grooves, then the steel sheets are laminated according to a first rule to obtain a rotor, and then the rotor is assembled to the rotating shaft; a rear end cover of the machine shell is removed, a heat dissipation machine cover is manufactured according to the diameter of the rear end cover, a bearing groove and an air outlet hole are formed in the heat dissipation machine cover, and then the heat dissipation machine cover is assembled to the machine shell; and a frequency converter is additionally arranged on the shell. The remanufactured permanent magnet synchronous motor manufactured by the method has better sealing performance and heat dissipation performance.

A first wiring pipe and a second wiring pipe are detachably connected in a splicing mode, the inner side of the end face of the first wiring pipe is provided with an extrusion conical groove, and the end face of the second wiring pipe is provided with a rubber embedding and sealing block in a bonding mode at the position corresponding to the extrusion conical groove. According to the utility model, the end sleeves, the built-in annular air bags, the air injection pipes and the rubber sealing rings are arranged at the end parts of the first wiring pipe and the second wiring pipe, so that the built-in annular air bags can be conveniently injected with air after weak current line connection, and the built-in annular air bags are deformed after air injection; therefore, the rubber sealing ring on the inner side is driven to tightly abut against the outer side of the weak current circuit, so that the weak current circuit and the end parts of the first wiring pipe and the second wiring pipe are sealed, and the weak current wiring joints in the first wiring pipe and the second wiring pipe are protected. And external impurities are prevented from entering to influence the connection and use of the weak current line.

The invention discloses a waste gas treatment device for new energy industrial automobile production, and particularly relates to the technical field of waste gas treatment.The waste gas treatment device comprises a treatment box, a double-cylinder reverse filtering set is arranged on the lower side of the interior of the treatment box, the bottom end of the treatment box is fixedly connected with a gas suction pipe, and a bidirectional spraying assembly is arranged on the upper side of the double-cylinder reverse filtering set; a self-circulation assembly is arranged on the upper side of the bidirectional spraying assembly, and an air injection assembly is arranged on the upper side of the self-circulation assembly. According to the invention, double cylinders in the double-cylinder reverse filtering group rotate reversely to intercept waste gas in a layered manner and disturb airflow at the same time for preliminary filtering, and then a vertical three-dimensional spraying field is formed through cooperation of the bidirectional spraying assembly and the self-circulation assembly, and a filtering layer in the self-circulation assembly is cleaned; and finally, the adsorption and interception efficiency of small particles is improved through shaking of the air injection assembly, self-cleaning is achieved, and the treated automobile paint spraying waste gas can reach the standard to be discharged.

The invention relates to a gas injection device of a foaming injection molding machine, and belongs to the technical field of injection molding machines. The gas injection device comprises a gas source; a pressure reducing valve; an air inlet one-way valve; injecting air cylinders; a gas injection piston; the connecting rod mechanism is used for connecting the gas injection piston and the injection screw rod; the gas injection head is communicated with the gas storage chamber and the injection charging barrel; the gas injection one-way valve is located between the gas injection head and the gas injection cylinder, and gas in the gas storage chamber enters the injection charging barrel in a one-way mode through the gas injection one-way valve; and when the injection screw retreats in a pre-plasticized mode, the gas injection piston is driven by the connecting rod mechanism to slide in the gas injection cylinder, the volume of the gas storage chamber is compressed, after the gas pressure rises to exceed the melt pressure, the gas injection head is opened, and inert gas enters the injection charging barrel through the gas injection head. The gas injection system is simplified, the gas injection flow and pre-plasticizing of the injection screw are synchronously carried out, and the manufacturing cost of equipment is reduced.

The utility model discloses a vehicle-mounted dehumidification protection air temperature type carbon dioxide gasification pry. The device comprises a protection box body and a gasifier located in the protection box body, the gasifier is provided with a gasification tube bundle, the front end of the gasification tube bundle is connected with the liquid separation side of a high-pressure common rail pipeline, and the rear end of the gasification tube bundle is connected with a carbon dioxide outlet pipeline through a collection box; the top of the protection box body is provided with a fan, the side face is provided with a shutter, and the bottom is provided with a dehumidification protection net and a folding protection bottom plate. And the fan adopts a blowing type or induced air type working mode, and adopts different air inlet modes according to different air humidity conditions, so that the gasification efficiency and stability are improved. According to the forced convection heat exchange principle, based on the bottom dehumidification device, the inertia separation technology of gas-liquid speed steering is utilized, two different operation states of the draught fan are adopted, and all-weather efficient, stable and safe high-pressure gasification operation is achieved by matching angle adjustment of the shutters on the two sides and air injection and entrainment to remove the influence of the boundary effect of the wall face.

The invention relates to the field of pipeline detection, in particular to a pipeline leakproofness detection device for constructional engineering construction detection, which comprises a base, a detection cylinder is mounted above the base, a first plugging piece is movably connected in the detection cylinder, and the first plugging piece seals the end part of a to-be-detected pipeline and clamps and fixes the pipeline. The pipeline is driven to move; a first plugging piece is installed at one end of the pipeline, a second plugging piece is installed at the other end of the pipeline, an air hole is formed in the second plugging piece, and air is injected into the pipeline after the two ends of the pipeline are plugged through the first plugging piece and the second plugging piece; the transmission assembly comprises a horizontally-arranged transmission rod, the transmission rod is driven by a motor, a second gear is arranged on the transmission rod in a sliding mode, through the structure of the detection marking assembly, when the pipeline passes through the lower portion of the detection marking assembly, the position of the leakproofness defect on the surface of the pipeline is detected and marked, and therefore follow-up repair of the pipeline is facilitated; and the whole pipeline is prevented from being discarded to cause waste.

The invention belongs to the technical field of atmospheric monitoring, particularly relates to an atmospheric environment particulate matter pollution monitoring device and a monitoring method, and aims to solve the problems that only gas at a fixed position and a fixed height can be monitored in the prior art, and impurities such as fluff and fine sand in the air are attached to an air collecting device to affect later atmospheric monitoring. According to the scheme, the device comprises a mounting column, a mounting frame is fixed to the outer wall of the mounting column, a monitoring box is fixedly mounted at the top of the mounting frame, and ray instruments are fixedly embedded in the inner wall of the top and the inner wall of the bottom of the monitoring box; according to the gas collection device disclosed by the invention, the collection ring can be driven to rotate and lift synchronously through rotation of the rotating shaft, so that gas collection can be carried out in different directions and at different heights, and the detection precision is improved; and gas injection and gas exhaust can be alternately carried out in the reciprocating movement process of the movable plate, and gas monitoring is continuously carried out.

The invention provides a gas anti-drag jet device and a ship. The gas anti-drag jet device comprises a gas supply assembly. One end of the flow guide pipe is connected with the air supply assembly, and the other end of the flow guide pipe is configured to be communicated with a through hole in a ship bottom flat plate; and the flow guide cover is configured to cover the through hole from the side, away from the flow guide pipe, of the ship bottom flat plate, so that a narrow slit is formed by the flow guide cover and the ship bottom flat plate, and the narrow slit is used for allowing gas to be sprayed out and enabling the gas to flow along the ship bottom flat plate. The gas anti-drag air injection device occupies a small area of a flat plate at the bottom of the ship, is easy to arrange, and can reduce the adverse effect of the gas anti-drag air injection device on the performance and structure of the ship body.

The Bernoulli suction cup structure comprises a base and a controller, the surface of the base comprises a plurality of concentric annular layers obtained through division according to different radiuses away from the center of the base, and each layer is provided with a row of obliquely upward first air holes and / or a row of upward second air holes perpendicular to the base; the first gas hole is used for obliquely and upwards spraying gas and generating an acting force for downwards adsorbing the wafer by utilizing the Bernoulli principle, and the second gas hole is used for vertically and upwards spraying gas and providing an upward suspension acting force for the wafer; and the controller is used for adjusting the number and the distribution position of the air holes in the air injection state in the first air holes and the second air holes according to the size of the wafer and / or the shape of the wafer. Therefore, according to the size and / or shape of the wafer, the number and the distribution position of the air holes in the air injection state in the first air holes and the second air holes can be dynamically adjusted, and the stability and the accuracy of the wafer in the suspension state are ensured.

The invention discloses a horizontal five-axis turning and milling combined machining center, and relates to the technical field of combined machining machine tools. By arranging the composite milling mechanism, the height of the first milling assembly and the height of the second milling assembly can be independently adjusted, the purpose that the first milling assembly or the second milling assembly or the first milling assembly independently participates in the milling operation of the metal part is achieved, the turning mode, the milling mode or the turn-milling mode can be rapidly switched according to the machining requirement, and the machining efficiency is improved. A purging mechanism is arranged, linkage is formed through movement of a push rod, a push plate and a mounting base, and therefore when the clamping disc is turned over, a piston is pushed by a first piston rod and a second piston rod to extrude out air in the air storage cylinder; and the output high-speed air flow blows the surface of the clamping disc through the air blowing holes of the hollow arc-shaped baffle so as to remove residual metal fines, so that the double cleaning effects of overturning dumping and air flow blowing are achieved, the cleaning strength is greatly improved, and the automation degree is high.

The invention discloses a compressed air energy storage power station multi-stage compressor start-stop control system and method, and belongs to the technical field of compressed air energy storage, the compressed air energy storage power station multi-stage compressor start-stop control system comprises two compressor units and an expansion unit connected with the compressor units, each compressor unit comprises four stages of compressors connected in series, an anti-surge valve and an emptying valve are arranged on the outlet side of each stage of compressor in parallel, and every two adjacent stages of compressors are connected through a check valve, a butterfly valve shut-off valve, an energy storage heat exchanger and an aftercooler. Meanwhile, an aftercooler, a gas-liquid separator and a gas injection valve are arranged on the outlet side of the last-stage compressor in each compressor unit; the expansion unit and the compressor unit form switchable gas path coupling through an electric shut-off valve. The starting time of the compressed air energy storage system can be shortened, gas in the compressed air energy storage system is prevented from being exhausted during shutdown, and energy loss is reduced.

The invention relates to the technical field of industrial waste gas treatment, in particular to a spray tower for industrial waste gas treatment, which comprises a bracket, a tower body mounted on the bracket, an annular gas pipe connected to the lower part of the outer wall of the tower body, gas injection pipes connected to the annular gas pipe at intervals along the circumferential direction and extending into the tower body, a gas inlet pipe connected to the annular gas pipe, and a connecting plate connected to the lower part in the tower body, a connecting plate is rotationally connected to the connecting plate through a rotating shaft, a blocking ring used for blocking the gas injection pipe is connected to the connecting plate, and a gas inlet is formed in the blocking ring. The transmission assembly can be driven by the motor to drive the rotating shaft to intermittently rotate, so that the air inlets in the blocking ring can be sequentially aligned with the four air injection pipes on the annular air pipe, the entering direction of waste gas is automatically switched, and the situation that the waste gas only concentrates at the center or one side of a filler area to flow is avoided; particulate matters in the waste gas are prevented from tending to be attached to the same position of the filler, the risk of local blockage is reduced, the effective area of an airflow channel is increased, and the waste gas treatment efficiency is improved.

A combustor includes combustion liner that defines a combustion chamber that extends from a forward end to an aft end. The combustor further includes a fuel nozzle. The combustor further includes a first air injection apparatus that is disposed at a first air injection stage and that is fluidly coupled to an air supply. The first air injection apparatus includes a bluff body that has a side wall and a downstream plate. The first air injection apparatus is configured to introduce air at a downstream end into the combustion chamber at the first air injection stage. The combustor further includes a second air injection apparatus that is disposed at a second air injection stage and that is fluidly coupled to the air supply. The second air injection stage is positioned downstream of the fuel nozzle and the first air injection stage.

The invention discloses a full-section air supply type compressed air energy storage system, which belongs to a compressed air energy storage system and comprises a compressed air storage module, an expansion acting module connected with an outlet of the compressed air storage module, and an air compression module connected with an inlet of the compressed air storage module, a multi-stage cooler is arranged between the compressed air storage module and the air compression module, a multi-stage heater is arranged between the compressed air storage module and the expansion acting module, the compressed air storage module comprises a plurality of air storage pipes connected in parallel, and an inlet of each air storage pipe is connected with an outlet of the air compression module. The multi-section parallel air storage pipe is adopted as the air storage device of the compressed air energy storage system, the storage pressure is high, the sealing performance is good, the air storage device can be flexibly installed and arranged and is not limited by special geographical conditions, an integrated pipe network is convenient to form a scale, and simultaneous air injection and batched air production can be achieved; and the system operation efficiency can be effectively improved.

The invention belongs to the technical field of industrial air conditioners, and particularly relates to an industrial direct injection air conditioner which comprises a machine shell, a compressor, a condenser, an expansion valve, an evaporator and a draught fan are fixedly installed on the inner wall of the machine shell, a noise reduction mechanism is arranged in the machine shell, and a defrosting assembly and an auxiliary flowing assembly are arranged in the noise reduction mechanism. According to the noise reduction mechanism and the defrosting assembly of the industrial direct injection air conditioner, when the flow speed of cold air is increased, the sliding hush pipe can move in the direction of the fixed hush pipe in the inner wall of the through pipe, the space of the resonant cavity is reduced, the frequency of the resonant cavity is increased, high-frequency noise is reduced, and the noise reduction effect is improved; when cold air flows, the cold air passes through the arc-shaped blades, the arc-shaped blades drive the rotating shaft to rotate at the moment, then the rotating shaft moves relative to the damping sleeve, meanwhile, the arc-shaped blades block and decelerate cold air flowing, and noise is reduced by reducing turbulent flow and vortex.

The invention provides a gas drag reduction ship. The gas drag reduction ship comprises a ship bottom flat plate; the at least one group of gas anti-drag air injection mechanisms are arranged at the incident flow end of the inner side of the ship bottom flat plate, the number of the gas anti-drag air injection mechanisms in each group is at least one, when the number of the gas anti-drag air injection mechanisms is one, the gas anti-drag air injection mechanisms are arranged on the middle longitudinal section line of the ship bottom flat plate, and when the number of the gas anti-drag air injection mechanisms is multiple, the gas anti-drag air injection mechanisms are arranged on the middle longitudinal section line of the ship bottom flat plate. The multiple gas resistance-reducing air injection mechanisms are symmetrically arranged relative to the middle longitudinal section line of the ship bottom flat plate, and the gas resistance-reducing air injection mechanisms inject air through the through holes in the ship bottom flat plate; each gas resistance-reducing gas injection mechanism at least corresponds to one flow guide cover, the flow guide covers are arranged in the through holes of the ship bottom flat plate and located on the outer side, a narrow slit is formed by the flow guide covers and the ship bottom flat plate, and the narrow slit is used for allowing gas to be injected out and enabling the gas to flow along the ship bottom flat plate. According to the gas resistance reduction ship, the projection of the gas resistance reduction air injection device in the ship width direction does not need to cover the whole ship width, and the whole ship width coverage of a gas layer can be achieved.

The invention discloses a cooling-bed-free aluminum profile production line and a using method thereof.The cooling-bed-free aluminum profile production line comprises a raw material supply device, a heating furnace, a preheating device, an extruder, an air cooler, a saw cutting device, a straightening device, a first traction device, a second traction device and a discharging device, and full-automatic production of raw material supply, heating, extrusion, air cooling, saw cutting, straightening and discharging can be achieved; therefore, full-automatic efficient production of the aluminum profile is achieved. A traditional cooling bed is replaced with a high-speed air injection rapid cooling technology, a large amount of air can act on the surface of the aluminum profile instantly through high-speed air injection, rapid heat exchange is achieved, and therefore the cooling time is greatly shortened; and meanwhile, compared with a traditional cooling bed which needs to maintain a low-temperature environment, high-speed air injection generally only needs to be started when needed, the cooling time and energy consumption can be more accurately controlled, and the energy utilization efficiency is improved.

The utility model discloses an air conditioner copper pipe chamfering chip removing device which comprises an air nozzle, the air nozzle comprises a body, an air cavity is formed in the body, an air injection hole used for injecting air into an air conditioner copper pipe in a clamping state is formed in the rear end of the body, and the air injection hole is a straight hole. The air injection hole comprises an air injection hole inlet end and an air injection hole outlet end used for stretching into a pipe opening of the clamping end of the air conditioner copper pipe. In the radius direction of the body, the outlet ends of the gas orifices are positioned on the outer sides of the inlet ends of the gas orifices; the air injection holes are obliquely formed in the circumferential direction of the body, the inlet ends of the air injection holes are communicated with the rear end of the air cavity, the air injection holes are circumferentially and uniformly distributed around the axis of the body, and the body is provided with an air cavity air inlet communicated with the air cavity; the air nozzle cylinder is used for driving the air nozzle to move along the axis direction of the air conditioner copper pipe and is in driving connection with the air nozzle. The chamfering chip removing device for the air conditioner copper pipe can effectively remove cutting chips in the air conditioner copper pipe.

An axial fuel stage (AFS) injector includes a mixing member including axially elongated mixing chambers in fluid communication with a combustion liner of a combustor, and fuel injectors in opposing side walls of the mixing chambers. A high-pressure (HP) air injection member defines a set of HP air jets spaced from the inlet of each mixing chamber. A fuel plenum in the mixing member delivers fuel from a fuel source to each set of fuel injectors. Each set of HP air jets directs a HP air from a HP air source and, in some embodiments, to draw a low-pressure (LP) air from a LP air source to direct the LP air with the HP air into the inlet of a respective mixing chamber where fuel is injected. The axially elongated mixing chambers direct the air-fuel mixture into the combustion liner for combustion in a secondary combustion zone thereof.

The invention discloses a plastic hollow plate shaping and cooling device and method, and belongs to the technical field of plastic hollow plate processing.The plastic hollow plate shaping and cooling device comprises a processing table, and a vacuum adsorption control system and an air floatation supporting control system are arranged at the two ends in the processing table respectively; two cooling mold mechanisms used for cooling the plastic hollow plate are arranged at the two ends of the top of the machining table, and a main cooling mechanism and an auxiliary cooling mechanism which are used for cooling are arranged on each of two molds of each cooling mold mechanism. Uniform negative pressure is formed through the vacuum grooves and the vacuum holes in the upper mold, a plate is forced to be attached to the cavity so as to guarantee the section shape, the lower mold forms air film support through the air injection grooves and the air injection micropores, the downward pulling force of vacuum adsorption and the gravity of the plate are counteracted, sliding friction between the plate and the lower mold is converted into gas lubrication friction, and the service life of the plate is prolonged. The problems that in a traditional shaping process, due to the fact that single-side adsorption force is too large, the top of a plate protrudes, and a hollow cavity collapses are solved.

The invention relates to the technical field of quenching equipment, and provides an online quenching system which comprises a lifting mechanism and a box body, the top of the box body is covered with a box cover, the lifting mechanism is used for lifting the box body, the box body is provided with a cooling mechanism, and the cooling mechanism comprises a water spraying mechanism and an air spraying mechanism. During working, a heated metal workpiece is placed in the box body, the cooling mechanism is started, and the cooling mechanism comprises the water spraying mechanism and the air spraying mechanism. The water spraying mechanism is driven by a water pump, water is conveyed to a conveying pipe network arranged in the box body and the box cover through a pipe network, and the workpieces are evenly sprayed with water to be cooled through a plurality of spray heads. The air injection mechanism supplies air to a lower air cavity installed in the box body and an upper air cavity installed in the box cover through a third fan and a fourth fan, air injection cooling is conducted on a workpiece through an air outlet head, the combination mode can flexibly adjust the proportion and speed of water injection and air injection according to actual requirements, and therefore accurate control over the cooling speed is achieved.

The invention discloses a surrounding rock fracture development horizon identification device and method.A vacuum pump of the identification device is arranged at the lower end of a test pipeline, the upper end of the test pipeline is closed, a valve is arranged on the test pipeline, the test pipeline is sleeved with a first air bag and a second air bag, and the first air bag is located above the second air bag; the air pump is arranged at the left end of the air injection main pipe, the right end of the air injection main pipe is connected with the bottom end of the first air injection branch pipe and the bottom end of the second air injection branch pipe through a three-way connector, and the upper end of the first air injection branch pipe is connected with an inflation inlet of the first air bag. The two upper ends of the second air injection branch pipe are connected with an inflation inlet of the second air bag, and a pressure sensor is arranged on the testing pipeline and located below the second air bag. According to the method, the surrounding rock fracture development layer position is judged, hole sealing is conducted in time, efficient gas extraction is achieved, and the resource utilization rate is increased on the premise that safety is guaranteed.

The invention provides upper fork burr treatment equipment which comprises a workbench, a top disc is arranged at the top of the workbench, and a plurality of positioning grooves distributed in an annular array are formed in the top disc; the two sides of the multiple positioning grooves are each provided with a pressing and positioning mechanism. The burr grinding and removing mechanism is located above one side of the top disc, and the burr grinding and removing mechanism is installed on the side of the workbench; the burr grinding mechanism comprises a grinding head, and the outer side of the grinding head is sleeved with a telescopic cylinder. The gas injection mechanism communicates with the top side of the telescopic cylinder through a conveying pipeline; and the rotation driving mechanism is arranged in the workbench, and the rotation driving mechanism is connected with the middle of the top disc. The rotary driving mechanism drives the top disc to rotate, the upper forks placed in the multiple positioning grooves are sequentially moved to the burr grinding and removing mechanism, batched upper fork burr treatment is achieved, the machining efficiency is improved, the air injection mechanism, the conveying pipeline and the telescopic cylinder are arranged, and automatic blowing and cleaning can be conducted on a grinding head of the burr grinding and removing mechanism.

The invention relates to the technical field of numerical control machining tools, in particular to a metal part numerical control machining tool which comprises a numerical control drilling machine, a processing seat is fixedly connected to the numerical control drilling machine, a discharging frame is fixedly connected to the interior of the processing seat, a moving seat is arranged in the processing seat, and a hole cleaning mechanism is rotationally connected to the moving seat. The transmission frame is fixedly connected to one side of the moving seat, the T-shaped frame is rotationally connected to the processing seat, the machining tables are fixedly connected to the two ends of the T-shaped frame, the metal plates are placed on the machining tables, and by arranging the hole cleaning mechanism, after a numerical control drilling machine is used for drilling holes, the air spraying pipes are inserted into inverted-T-shaped holes. When the air spraying pipe rotates, the hole wall scraping plate can be thrown out under the action of centrifugal force, so that the hole wall scraping plate is tightly attached to the inner wall of the inverted-T-shaped hole. And meanwhile, the air spraying pipe rotates to drive the fan blades to rotate, so that the air spraying pipe sprays air to blow out cuttings in the inverted-T-shaped hole, and time waste of subsequent cleaning operation is avoided.

A fuel nozzle for a turbine engine. The fuel nozzle has a premixer body, vortex generator, air injection orifice, and fuel injection orifice. The premixer body defines a primary flow path. The air injection orifice is provided in the premixer body and located downstream of the vortex generator. The fuel injection orifice is provided in the premixer body and opens into the primary flow path.

The invention relates to the technical field of detection systems, in particular to a quartz sand impurity rapid detection system, which comprises an image processing unit for regularly shooting images on a conveyor belt and recording the images as logistics images, and determining a target area corresponding to each logistics image based on a coincident part; the impurity identification unit is used for identifying the material contour in the target area, analyzing the impurity type corresponding to the material contour, marking the material contour corresponding to the impurity as a target contour and determining the position of the target contour; the air injection control unit is used for analyzing and determining the air injection opportunity of each air injection blowing nozzle based on the position coordinates when the target contour is identified and marked in combination with the conveying speed of the conveying belt; and when the air injection opportunity corresponding to the target contour is output, analyzing the shape characteristics of the target contour to obtain a projection area and a thickness measurement value, and adjusting the air flow parameters of the air injection blowing nozzle in combination with the corresponding related impurity types. According to the invention, different types of impurities can be effectively distinguished and targeted elimination can be carried out.

The utility model relates to the technical field of ships, and provides a methanol isolation cabin and a ship, which comprise a shell, a gas injection assembly and a gas exchange assembly. Wherein the methanol fuel cabin is wrapped with the shell, and the shell and a shell of the methanol fuel cabin are arranged in a spaced mode to form an isolation space; the gas injection assembly comprises a first pipeline, one end of the first pipeline is inserted into the isolation space, and inert gas can be selectively introduced into the isolation space; the ventilation assembly comprises a second pipeline and a third pipeline, the second pipeline and the third pipeline both communicate with the isolation space, the second pipeline can selectively communicate with the indoor environment and the outdoor environment of the isolation space, and the third pipeline can be selectively connected with any one of the breather valve and the first air pipe head. Through the arrangement, the use efficiency of the inert gas can be improved, and the safety of the methanol isolation cabin is improved.

The utility model discloses a road crack monitoring mechanism, which belongs to the technical field of road crack monitoring, aims at solving the problems that the road crack monitoring effect is poor and the road crack monitoring mechanism is easily influenced by sundries and dust, and comprises a cart body and a plurality of mounting holes which are formed in the side wall of one side of the cart body at equal intervals, an air spraying pipe is fixed in the mounting hole, a monitor is fixed to the side wall of one side of the cart body, an air spraying assembly matched with the air spraying pipe is arranged on one side of the cart body, and two symmetrically-distributed mounting bases are fixed to the side wall of the bottom end of the cart body; through the arrangement of the air injection assembly, air injection dust removal can be carried out on dust in road cracks, the working efficiency of cleaning the road cracks can be improved, and particularly, the phenomenon that dust in deep cracks is not easy to clean can be solved, so that the road cracks or cracks can be well detected, and the detection efficiency is improved. And more time and labor can be saved for workers, so that better accuracy is achieved.