22results about How to "Stable airflow" patented technology

The utility model relates to the technical field of fiber fabric air pipes, and discloses a multidirectional micropore flow guide fiber fabric air pipe which comprises a first air pipe, an air inlet is formed in the right side of the first air pipe, a plurality of reinforcing layers are fixedly connected into the first air pipe, and a plurality of ventilation openings are formed in the outer wall of the first air pipe. A first flange ring is fixedly connected to the left side of the first air pipe, a second flange ring is fixedly connected to the left side of the first flange ring, a second air pipe is fixedly connected to the left side of the second flange ring, and a supporting ring is fixedly connected to the middle of the outer wall of the first air pipe. Air enters the first air pipe through the air inlet, air flow is distributed to the flow guide layers under the action of the strengthening layers, the strengthening layers and the first air pipe are sewn, cylindrical balance is kept under the action of vertical and lateral tension, air is exhausted for air supply, the multiple strengthening layers in the first air pipe ensure that the air flow is stable and pressure is balanced, and the strength of the air pipe is enhanced. The service life is prolonged.

The utility model discloses an air detector, which relates to the field of air detection and is characterized by comprising a main body, a detection sensor and an air pump, an air inlet pipe is arranged at the top end of the main body, a spiral air inlet pipe is arranged at one end, far away from the main body, of the air inlet pipe, an air inlet cover is arranged on the air inlet pipe, and the air inlet cover is hollow and contains the spiral air inlet pipe. A plurality of air ports are formed in the air inlet cover in the circumferential direction. The air inlet cover comprises an upper cover and a lower cover which can be separated and combined, the air inlet pipe penetrates through the lower cover and is fixedly connected with the lower cover, a filter screen ring groove is formed in the inner bottom face of the lower cover, and a coarse filter screen is detachably connected into the filter screen ring groove. The spiral air inlet pipe is arranged, so that the air flowing path can be prolonged, the air flow is more stable, and the detection precision of the detection sensor is improved.

The utility model relates to the technical field of bag-type dust removers, and discloses a bag-type dust removal connecting structure which comprises a first connecting ring, two connecting blocks are fixedly connected to the inner wall of the first connecting ring, an expansion ring is fixedly connected to the left side of the first connecting ring, and a convex ring is fixedly connected to the left side of the first connecting ring. A second connecting ring is detachably connected to the left side of the first connecting ring, a sealing groove is formed in the second connecting ring, a plurality of first springs are fixedly connected to the inner wall of the sealing groove, sealing rings are fixedly connected to the right sides of the first springs, and a clamping ring is fixedly connected to the interior of the second connecting ring. According to the utility model, dust-containing gas can be effectively prevented from escaping, the clean and safe working environment is guaranteed, the harm of dust to the health of personnel and the surrounding environment is greatly reduced, the stable airflow and pressure environment in the bag-type dust collector can be maintained, the efficient development of dust collection operation is ensured, and the reliable operation cycle and the service life of equipment are prolonged in an assisting manner.

The application relates to a double-channel rotating detonation combustion chamber structure with an inlet total pressure adjusting function, which comprises a Tesla valve arranged at the inlet of the rotating detonation combustion chamber, the Tesla valve comprises a shell and a flow channel, the inlet end and the outlet end of the flow channel are respectively provided with pressure adjusting structures, the radial outer side of the flow channel is provided with an injection channel, the injection channel comprises an air outlet channel and a pressurizing channel communicated with the air outlet channel, and the side, away from the pressurizing channel, of the air outlet channel is provided with an opening and closing assembly for opening or closing the air outlet channel, the opening and closing assembly comprises a supporting plate, a plurality of opening and closing doors and a self-locking driving part, and the self-locking driving part is used for synchronously driving the plurality of opening and closing doors to be close to or away from the outlet side of the air outlet channel. The application has the effects that when the rotating detonation combustion chamber is in an air thin belt, the air intake of the air inlet channel is automatically enhanced, the rotating detonation combustion chamber preferentially intakes the air in the air inlet channel, the air supply of the combustion chamber is ensured, and the adaptability and stability of the combustion chamber in different environments are improved.

This utility model belongs to the field of wind tunnel testing and relates to a wind tunnel testing device for performance testing of aerospace metal skin. It includes: a high-pressure blower, a gas storage tank, a test air duct, a first barometer, and a controller. The high-pressure blower is connected to the inlet end of the gas storage tank, and the outlet end of the gas storage tank is connected to the test air duct. The first barometer is located inside the gas storage tank, and the first barometer, the high-pressure blower, and the controller are electrically connected. The gas storage tank is a spherical tank, and its interior is equipped with a honeycomb flow guide grid and a turbulence damping net. The honeycomb flow guide grid and the turbulence damping net divide the internal space of the gas storage tank into a first space and a second space. The first space is connected to the inlet end of the gas storage tank, and the second space is connected to the outlet end of the gas storage tank. After the high-pressure blower injects airflow into the first space, the airflow sequentially passes through the honeycomb flow guide grid and the turbulence damping net into the second space. This utility model is suitable for dynamic load identification tests on square plate-shaped aerospace metal skin.

This invention relates to a shock tube gas distribution method and system. During shock tube experimental gas preparation, a gas distribution column and a mixing tank are used in conjunction to actively control the internal pressure of the gas distribution column. An additional pressure-reducing stage is added between the gas cylinder and the mixing cylinder. The gas distribution column buffers large fluctuations in gas flow and pressure, resulting in a more stable gas flow and significantly improving the accuracy of the experimental gas component ratio. Simultaneously, the mixing tank has only one inlet connecting to the gas distribution column and one outlet connecting to the shock tube, improving the tank's strength and pressure-bearing capacity, and enhancing gas distribution safety.

This utility model relates to the field of blast furnace technology, specifically to a special tool for blocking blast furnace tuyeres and a pulverized coal injection (PCI) system. The special tool for blocking blast furnace tuyeres is used to inject a sodium silicate aqueous solution into a PCI system. The PCI system includes a PCI body and a coal conveying pipeline. A branch pipe is connected to the coal conveying pipeline, and a branch valve is installed on the branch pipe to control its on / off state. The special tool includes a purge pipe, a solution tank, and a connecting pipe connected in sequence. The end of the purge pipe away from the solution tank is connected to an air compressor, and the purge pipe is detachably connected to the solution tank. The special tool is connected to the coal conveying pipeline via the branch pipe. The sodium silicate aqueous solution is blown into the PCI body by the air compressor, mixes with the pulverized coal air from the coal conveying pipeline, and is then sprayed. This eliminates the problem of discontinuous air supply and effectively prevents the PCI clogging.

This utility model provides a polyester fabric drying device, including a support base plate, a fabric support roller, a first guide structure, a second guide structure, a drying structure, and a polyester fabric. The fabric support roller is fixedly installed at one end of the surface of the support base plate, and the first and second guide structures are fixedly installed on the surface of the support base plate. The drying structure is fixedly installed on the surface of the support base plate, located between the first and second guide structures. The polyester fabric is drawn out from the fabric support roller and fed into the first guide structure, the drying structure, and the second guide structure in one pass. The first guide structure and the drying structure of this utility model allow for pre-dehydration before drying, resulting in high drying efficiency and no damage to the fabric.

The utility model relates to tricycle parts manufacturing technical field discloses a kind of tricycle parts automatic paint spraying equipment, including spraying box, the left side of the spraying box is provided with spraying module, the front of the spraying box is provided with replacement mouth, the back of the spraying box is provided with the moving mouth corresponding with replacement mouth, the inside wall of the spraying box is provided with the clamping groove symmetrical with replacement mouth, the device can guide paint drop not adhering to gathering plate by flow guide plate, cooperate first filter hole with second filter hole or third filter hole, and the sliding of electric push rod driving replacement plate can switch filter hole conduction state, so that paint is smoothly dropped into the bottom of spraying box, while stepper motor drives stirring shaft rotation to prevent paint deposition at bottom, paint is extracted back storage tank by first diaphragm pump and circulation pipe, paint can be efficiently recycled, avoid paint accumulation caused by planar bottom, reduce impurity breeding, reduce paint waste, control production cost.

This invention relates to the technical field of welding equipment, specifically to a steel reinforcement welding device for cast-in-place box girder production, comprising a welding torch, a welding electrode feeding mechanism, and a wind shield. The welding electrode feeding mechanism is located at the front end of the welding torch. The welding electrode feeding mechanism is equipped with a sliding clamp to hold the welding electrode and feed it forward. The wind shield is located at the front end of the welding electrode feeding mechanism so that the end of the welding electrode is located inside the wind shield. The sliding clamp is connected to the power supply of the welding torch. After clamping the welding electrode, it moves the electrode. During welding, the welding electrode can be fed automatically, eliminating the need for manual feeding based on experience as in conventional welding, thus reducing welding difficulty. This also ensures that the end of the welding electrode always completes the arc discharge inside the wind shield, reducing the impact of wind on welding quality.

The utility model belongs to the field of powder spraying metallurgy technique, disclose a kind of RH furnace pressure circulation powder spraying system, by immersion type injection lime powder in RH riser, improve RH furnace desulfurization capacity, promote molten steel purity;Reduce raw material consumption, improve metallurgical effect.It include refining ladle, RH furnace body and powder spraying tank;RH furnace body is located above refining ladle;The side of RH furnace body is equipped with booster inlet, booster inlet is connected with booster pump by pipeline, and gas pressurization is passed to RH furnace body by booster inlet;The other side of RH furnace body is equipped with powder spraying port, and powder spraying port is connected with powder spraying tank and booster gas source respectively by pipeline;Powder of powder spraying tank is carried out powder spraying operation to the inside of RH furnace body by powder spraying port, and booster gas source is used to provide conveying power for powder.

An inlet of a coil holder sleeve of the air duct assembly is connected with a tubular support, a support cover is arranged on the side, away from the coil holder sleeve, of the tubular support, a high-speed motor is arranged in the tubular support, and an inner air inlet net is of a barrel-shaped structure with an opening at one end. The open end of the inner air inlet net is buckled to the side, away from the tubular support, of the support cover. By means of the honeycomb net of the support cover and the meshes distributed on the inner air inlet net, airflow is divided into a plurality of strands of small airflow twice, the airflow is rectified before entering a high-speed motor, the airflow is rectified after entering the high-speed motor, the airflow is rectified after entering the high-speed motor, and the airflow is rectified after entering the high-speed motor. The flow speed and the flow of the airflow are stabilized, the influence of turbulent flow is reduced, the airflow entering the high-speed motor is more stable, the influence of airflow disturbance on an air inlet of the high-speed motor is reduced, the wind noise is reduced, and the noise reduction effect is achieved.

This invention belongs to the field of grate cooler technology, and particularly relates to a support structure for a grate bed and its usage method. One such support structure includes: a grate beam with an air chamber along its length at its upper end; an air inlet communicating with the air chamber and located on the bottom wall of the grate beam; and an adjusting support member vertically positioned within the air chamber of the grate beam to support the grate layer. Cooling air flows into the air chamber through the air inlet, and the cooling air drives the blades of the adjusting support member to rotate 90°, allowing the cooling air to flow smoothly along the air chamber. The rotatable blades, rotating 90°, enable the cooling air to flow smoothly along the inner wall of the air chamber. The upper end of the adjusting support member supports the grate layer, avoiding the airflow turbulence problem associated with existing reinforcing ribs.

The utility model provides an anti-blocking device for shunt pipes of a dust remover, which relates to the technical field of waste incineration devices and comprises a plurality of shunt pipes communicated with a flue. A rectangular hole is formed in the middle of the flue, and a manhole door is hinged to the periphery of the rectangular hole of the flue; a vibrator is arranged on the outer wall of each flow dividing pipe and is used for enabling the flow dividing pipe to vibrate at high frequency; a rectifying plate is arranged at an inlet, close to the flue, of each shunting pipe; the periphery of the rectifying plate is attached to the inner wall of the flow dividing pipe, and a plurality of holes are evenly formed in the surface of the rectifying plate and used for stabilizing airflow in the flow dividing pipe. And the control assembly is in signal connection with the rapping machine. The technical problems of dust accumulation and incomplete cleaning in the prior art are solved, and the technical effects of efficient dust removal, blockage prevention and automatic control are achieved.

This invention discloses an exhaust gas inlet device for an RTO incinerator, belonging to the field of exhaust gas inlet technology. It includes an incinerator body with at least three regenerator chambers, an inlet pipe, and a flow guiding unit. Each regenerator chamber and the inlet pipe are connected by a connecting pipe, and at least three shaking and centering units are installed circumferentially on the connecting pipe, with several of the shaking and centering units tending to be aligned. This invention can block particulate matter in the exhaust gas inside the inlet pipe, preventing it from entering the regenerator chambers and avoiding high exhaust gas flow rates that could cause strong scouring of the ceramic body by particles. Simultaneously, it allows the device itself to clean the primary filter screen, which is very convenient and avoids the problem of difficult-to-clean filtration devices, thus preventing a decrease in the inlet flow of exhaust gas and affecting the overall treatment efficiency.

This utility model relates to the field of artificial flower protection technology, and more particularly to a moisture-proof and color-protecting protective cover structure for artificial flowers. The structure comprises a flow-stabilizing mechanism, a drying mechanism, and a protective cover body. An air inlet pipe is fixed to the bottom of the side wall of the flow-stabilizing mechanism, extending into the mechanism to provide a stable drying airflow. The drying mechanism is positioned above the flow-stabilizing mechanism to dry the airflow. The protective cover body is detachably mounted on top of the drying mechanism, and an artificial flower is placed inside the protective cover body. This utility model provides a moisture-proof and color-protecting protective cover structure for artificial flowers, solving the technical problem of color fading and blurring caused by moisture during the production of artificial flowers.

The utility model provides a moving head lamp with a bee-eye lens array, which relates to the technical field of lamp products and comprises a base, a support arm and a lamp box formed by buckling a front cover plate and a rear cover plate, and a lens mounting component, a lamp body component and a radiating component are sequentially arranged in the lamp box. The lens installation assembly is composed of a front cover plate, a fixing plate and a bottom plate, light through holes are formed in the positions, corresponding to the lenses, of the front cover plate, a conical cavity is defined between the light through holes through reinforcing ribs, flow guide holes are formed in the side wall of the cavity, and ventilation holes are correspondingly formed in the fixing plate and the bottom plate respectively. And the front cover and the rear cover of the lamp holder are communicated with the ventilation holes and the flow guide holes between the air inlet and the air outlet to form a ventilation and heat dissipation path penetrating through the lamp box. The heat dissipation assembly exhausts hot air in the lamp box from the rear cover through the draught fan, external cold air purges the surface of the lens, and efficient heat dissipation and condensation prevention are achieved.

The utility model relates to the technical field of pump equipment, in particular to a novel air bag pump. The air bag pump comprises a pump body and a reversing valve, the left end and the right end of the pump body are provided with two compression cavities communicated with the ball valve, and corrugated pipes are installed in the two compression cavities respectively. Threaded end pipes are arranged at the positions, at the outer ends of the two compression cavities, of the pump body respectively, end covers are connected to the threaded end pipes in a threaded mode, the corrugated pipes are fixedly pressed in the compression cavities through the end covers respectively, air inlet holes and air outlet holes which are communicated with the interiors of the corrugated pipes are formed in the end covers, and the air inlet holes and the air outlet holes are connected with an air inlet pipe connector and an air outlet pipe connector respectively. The gas inlet pipe joint and the gas outlet pipe joint are connected with the reversing valve through gas-guide pipes; the inner side of the end cover is provided with a mounting counter bore communicated with an air outlet, a piston assembly is arranged in the mounting counter bore, the front end of a piston rod of the piston assembly is supported in the center of the air bag, and a plurality of damping strips are arranged between the piston assembly and the inner side of the end cover at intervals, so that the vibration magnitude is effectively reduced, pump vibration and noise are solved from the source, and the damping and noise reduction effects are good.

The utility model discloses a gas circuit stabilizing device, which relates to the technical field of medical instruments, and comprises a shell with a gas inlet and a gas outlet respectively arranged at two axial ends and partition plates arranged in the shell and provided with arc-shaped through grooves, a gap is reserved between the adjacent partition plates, and the arc-shaped through grooves of the adjacent partition plates are not completely overlapped. Through the arrangement of the partition plates, when airflow passes through, the track is similar to a sinusoidal waveform, the airflow in the whole channel is in smooth transition and has no sharp size change or sharp turning, the stability of the airflow is improved, and interference of fluctuation of the airflow in the environment on the equipment can be avoided.

The utility model relates to the technical field of smoke exhaust fireproof valves, and discloses a smoke exhaust fireproof valve convenient to install and overhaul, which comprises a smoke exhaust fireproof valve body, a first connecting pipe is arranged on the side wall of the smoke exhaust fireproof valve body, a second connecting pipe is connected to one side wall of the first connecting pipe in a sliding mode, and a fixing assembly is arranged on one side wall of the second connecting pipe. A cleaning assembly is arranged on the side wall of the smoke exhaust fireproof valve body. The fixing assembly comprises a fixing frame, the side wall of the fixing frame is fixedly connected to one side wall of the connecting pipe, a fixing block is fixedly connected to the side wall of the smoke exhaust fireproof valve body, a sleeve is fixedly connected to the interior of the fixing frame, a connecting rod is slidably connected to the interior of the sleeve, and a clamping column is fixedly connected to the side wall of the connecting rod. According to the smoke exhaust fireproof valve, the shifting plate is pulled to drive the connecting rod to compress the double springs to enable the clamping column to retract, the shifting plate is loosened after the fixing block is inserted, the springs rebound to achieve rapid locking, the problem that installation and disassembly are complex and time-consuming is solved, and installation convenience of the smoke exhaust fireproof valve is improved.

The air duct assembly comprises a coil holder sleeve, a tubular support, an inner air inlet net and a high-speed motor, one end of the tubular support is provided with an opening, the other end of the tubular support is provided with a honeycomb net, and an inlet of the coil holder sleeve is connected with the opening of the tubular support. The inner air inlet net is of a barrel-shaped structure with one end provided with an opening, and the opening of the inner air inlet net is arranged on the side, away from the coil holder sleeve, of the honeycomb net in a buckled mode. Air flow is divided into a plurality of small air flows twice through the honeycomb net of the tubular support and the meshes distributed on the inner air inlet net, so that the air flow is rectified before entering a high-speed motor, the flow speed and the flow rate of the air flow are stabilized, the influence of turbulent flow is reduced, the air flow entering the high-speed motor is more stable, and the air flow entering the high-speed motor is more uniform. The influence of airflow disturbance on the air inlet of the high-speed motor is reduced, the wind noise is reduced, and the noise reduction effect is achieved.

The utility model provides a kind of fan noise reduction assembly and scrubber, belong to cleaning equipment technical field, the fan noise reduction assembly includes: shell, and air inlet passage and air outlet passage are equipped on shell;Fan body and flow guide cover are equipped in shell, the flow guide cover with the shell forms first chamber;The fan body includes air intake and air outlet, the air outlet is located below the flow guide cover, and the air intake with the air inlet passage abuts;Air current enters from the air inlet passage of shell, then passes through the air intake of fan body, discharges from the air outlet, air current flows towards the direction of flow guide cover, under the guidance of the flow guide cover, change the flow trajectory of air current in the first chamber, and then discharge from the air outlet passage.This scheme is guided to air current by setting flow guide cover, play the buffering and direction-changing effect to air current, make wind more smoothly, reduce the impact of air current and side wall, effectively reduce the noise when fan works.