15results about How to "Change flow velocity" patented technology

The invention relates to the technical field of acrylonitrile catalyst production, in particular to a pulping device and a pulping process for acrylonitrile catalyst production, the pulping device comprises a homogenizing mechanism, the homogenizing mechanism comprises a tank body and further comprises a sealing cover arranged above the tank body and used for feeding, a stirring pulping assembly used for stirring slurry is arranged above the sealing cover, and the stirring pulping assembly is arranged above the tank body and used for stirring the slurry. The slurry extrusion device comprises a tank body and an extrusion box arranged below the tank body, an extrusion plate used for pushing slurry and a driving assembly used for driving the extrusion plate are arranged in the extrusion box, and the extrusion plate can extrude the slurry in the extrusion box; the extruded slurry can be discharged into the tank body through the first guide pipeline to realize circulating conveying of the slurry, so that one-way circulating operation by adopting a circulating pump is avoided, the maintenance frequency of each circulating part is reduced, synchronous circulation of the slurry on the left side and the right side of the tank body can be realized in a linkage manner, and the production efficiency is improved. And compared with a traditional circulating pump, one-way circulation is more efficient.

The invention belongs to the technical field of NMP waste gas treatment, and particularly relates to an NMP waste gas return air treatment process which comprises a spray tower used for spraying and absorbing impurities mixed in introduced NMP waste gas, the lower portion of one side of the spray tower is communicated with a gas inlet channel, the top of the spray tower is communicated with a gas outlet channel, and a waste liquid collecting bin is formed at the bottom of the spray tower; the spraying mechanism is communicated with a water tank below one side of the spraying tower through a water supply pipe and is used for uniformly spraying liquid in the water tank into the spraying tower to be in contact with the introduced NMP waste gas for absorption; the filler adjusting mechanism is positioned below the spraying mechanism and is used for adjusting the loose and uniform degree of the filler balls filled in the filler cavity; by changing the flowing speed and the flowing direction of the entering waste gas in the filler cavity, the sufficient contact between water mist sprayed by the spraying mechanism and the entering waste gas can be adjusted, so that the sufficient filtering and washing effect on impurities such as particle residues or dust in the waste gas can be improved.

The application discloses an injection molding method for a toy light guide pipe, which can avoid the occurrence of flow lines and bubbles in the toy light guide pipe after injection molding. The technical scheme is as follows: an injection molding method for a toy light guide pipe, which comprises a mold provided with a cavity, and the cavity is provided with a gate through which glue is injected into the cavity, and the glue injection is divided into five stages, i.e., a first glue injection stage, a second glue injection stage, a third glue injection stage, a fourth glue injection stage and a fifth glue injection stage. The glue injection speed of the first glue injection stage is the largest, the glue injection speed of the third glue injection stage is larger than that of the second glue injection stage and the fourth glue injection stage, and the glue injection speed of the fifth glue injection stage is the smallest. The glue injection pressure of the first glue injection stage is smaller than that of the second glue injection stage, and the glue injection pressure of the second glue injection stage is smaller than that of the third glue injection stage. The application belongs to the technical field of injection molding.

The invention belongs to an unmanned aerial vehicle, and particularly relates to an emergency surveying and mapping unmanned aerial vehicle with a falling protection function. An emergency surveying and mapping unmanned aerial vehicle with a falling protection function comprises a vehicle body, a camera body, supports, a buffer assembly and a camera protection assembly, the camera body is fixedly connected to the bottom of the vehicle body, the supports are fixedly connected to the left side and the right side of the vehicle body through bolts, and the buffer assembly is connected between the bottom ends of the supports; the outer side of the camera body is connected with a camera protection assembly. A camera body is fixedly connected to the bottom of the machine body, supports are fixedly connected to the left and right sides of the machine body through bolts, a buffer assembly is connected between the bottom ends of the supports, and a camera protection assembly is connected to the outer side of the camera body. When the inclined plate moves downwards to be in contact with the pressing plate, the protective covers get close to the middle, the magnets attract the protective covers on the left side and the right side together, the camera body is covered, and the camera body is protected.

The invention discloses a space-intensive flocculation water treatment device, comprising an outer cylinder and an inner cylinder, wherein the inner cylinder is rotatably mounted inside the outer cylinder, an inlet pipe is mounted on the outer cylinder, and a connecting pipe is mounted on the inner cylinder, sewage is input through the inlet pipe and output from the connecting pipe, a mixing mechanism is arranged inside the outer cylinder, the mixing mechanism makes the flocculant and the polluted particles in the water aggregate to form floccules, and a separation mechanism is arranged inside the inner cylinder, the separation mechanism is used to separate the floccules in the sewage to improve the purity of the water. In the space-intensive flocculation water treatment device, the flow speed of the sewage and the flocculant changes, and the sewage and the flocculant generate centrifugal force during the flow inside the water channel, which promotes the sewage and the flocculant to condense into larger alum flowers during the flow process, and is easy to form large and dense flocs, which can improve the floc sedimentation speed, and is conducive to the improvement of the subsequent sedimentation separation efficiency, while saving the space and stirring device of the general flocculation unit.

The utility model provides a timing and quantitative speed regulation filter which comprises a base, a peristaltic pump is arranged on the base, a material cup and a bearing frame are located on the two sides of the peristaltic pump, a supporting plate is arranged on the bearing frame, a plurality of filtering parts are distributed on the bearing frame at intervals, and filtering discs are installed in filtering supports in the filtering parts. The filter cover is movably installed on the filter support and connected with a filter cup piece, the peristaltic pump is provided with a plurality of pump heads provided with liquid conveying pipes, different liquid conveying pipes can extract raw liquid in a material cup, the raw liquid is conveyed into the filter cup piece under the cooperation of the peristaltic pump, and the raw liquid flows into the filter cover to make contact with a filter disc of the filter support. A plurality of samples can be filtered at the same time, different filter cup pieces can be installed by replacing a filter cover, so that the detection working conditions of different samples are adjusted, a filter support is connected with a flow detection component, the filtering resistance of a stock solution is judged through flow, the detection comprehensiveness is improved, and the problems that existing filtering is high in manual participation frequency and high in efficiency are solved. And the processing efficiency is low.

The invention relates to the technical field of mobile phone assembly, and discloses a middle frame gluing device which comprises an operation table, a clamp base, a clamping arm, a glue injection barrel and a temperature control system. The glue injection barrel is arranged on the clamping arm, and the clamp base and the glue injection barrel move relatively; a glue injection head is arranged on the glue injection cylinder, the glue injection head comprises a pipe wall and a glue injection cavity, and the pipe wall wraps the glue injection cavity; a glue outlet control area is arranged below the glue injection head, an opening and closing plate is arranged at a glue outlet of the glue outlet control area, and one end of the opening and closing plate is in sliding connection with the glue injection head; the temperature control system comprises a heat supply module, an air control module, an air passing channel and an air outlet nozzle, the heat supply module is used for heating air, the air control module sends the hot air out of the air outlet nozzle and can also suck cold air into the air passing channel, and the cavity in the glue outlet control area is communicated with the air passing channel. The glue is effectively prevented from dripping, and meanwhile, the glue applying temperature required by flowing of the glue during glue applying can be maintained.

This invention discloses a continuous flow microreactor flow rate control system and preparation method for the preparation of nano-β-MnO2, comprising a base, a first injection tube, a second injection tube, a microfluidic mechanism, and a collection mechanism. The first and second injection tubes are both fixedly mounted on the base, each containing a first reaction solution and a second reaction solution, respectively. The microfluidic mechanism is fixedly mounted on the base and communicates with the first and second injection tubes. A collection mechanism is also fixedly mounted on the base and communicates with the output end of the microfluidic mechanism. A temperature control mechanism for adjusting the temperature of the microfluidic mechanism is also provided on the base.

The utility model discloses high-viscosity modified emulsified asphalt cold regeneration equipment which comprises a first fixed seat, the side surface of the first fixed seat is fixedly connected with a motor, the output end of the motor is fixedly connected with a first barrel, and the outside of the first barrel is in transmission connection with a conveying belt; and the upper surface of the rack is fixedly connected with a first stirring bin and a second stirring bin, the side surfaces of the second stirring bin are each fixedly connected with two second driving motors, and the output ends of the two second driving motors are fixedly connected with a stirring shaft. By means of the structure, asphalt is conveyed to the first stirring bin through the conveying mechanism to be mixed, the heating device is installed on the water pipe, the situation that the emulsified asphalt becomes sticky due to temperature reduction in the mixing process of the emulsified asphalt is prevented, a heat dissipation structure is additionally arranged on the stirring shaft, and the influence of the temperature is prevented; and the flowing speed and direction of the materials can be changed, so that the interaction between the materials is facilitated, and the mixing uniformity is improved.

The invention belongs to the technical field of three-way catalyst equipment, and discloses a noise reduction type three-way catalyst structure which is technically characterized by comprising a shell, a first ceramic carrier is fixedly mounted in an inner cavity of the shell, and a second ceramic carrier located on one side of the first ceramic carrier is slidably mounted in the inner cavity of the shell; an adjusting assembly matched with the second ceramic carrier is arranged in an inner cavity of the shell, a turbulent flow mechanism located between the first ceramic carrier and the second ceramic carrier is arranged in the inner cavity of the shell, the turbulent flow mechanism comprises a turbulent flow plate, a positioning assembly and a rotating assembly, and the rotating assembly comprises a rotating part and a driving part. The problems that at present, automobile exhaust flows in a ceramic carrier in a three-way catalyst, noise is generated when the exhaust flows at a high speed in gaps in the ceramic carrier, and the use effect of the three-way catalyst is affected are solved.

The utility model discloses a molten aluminum filtering device, which relates to the technical field of molten aluminum filtering and comprises a filtering box, a discharging pipe is fixedly connected to the inner wall of the filtering box, a butterfly valve is rotatably connected to the inner wall of the discharging pipe, a feeding pipe is fixedly connected to the inner wall of the top of the discharging pipe, and the butterfly valve is rotatably connected to the inner wall of the feeding pipe. A filtering mechanism is arranged on the outer wall of the filtering box and comprises an L-shaped plate, through the fixing rod and the filtering plate, when the disc rotates, the fixing rod is driven to do circular motion, when the fixing rod moves, the connecting rod is driven to do arc-shaped motion, when the connecting rod moves, the rotating shaft is driven to move, and then the rotating shaft drives the U-shaped plate to move back and forth; and meanwhile, the U-shaped plate slides in the sliding rail and the square groove, and then drives the filtering plate to move when the U-shaped plate moves, so that the filtering efficiency is improved, the flowing speed of the molten aluminum is changed through vertical movement of the filtering plate, and the situation that the flowing speed of the molten aluminum in the equipment is low, and consequently the filtering efficiency of the molten aluminum is reduced is avoided.

The present invention discloses a fine-tuning flow regulator, including a turntable, a first plug-in ring fixedly arranged in the middle of the turntable, a rotating ring fixedly arranged on the inner wall of the first plug-in ring, a fixed tube movably plugged into the surface of the rotating ring, an adjustment ring fixedly arranged in the middle of the rotating ring, an adjustment cavity opened on the surface of the adjustment ring, and a second plug-in ring fixedly arranged on the top of the fixed tube corresponding to the position of the adjustment ring. The present invention drives the rotating ring to rotate by cooperating with the first plug-in ring of the turntable, and drives the adjusting cavity to rotate through the adjusting ring. Since the depth of the adjusting cavity gradually decreases from top to bottom, the adjusting cavity changes the depth of the position corresponding to the liquid inlet hole, thereby changing the flow speed of the liquid in the infusion tube in the adjusting cavity, and then changing the flow rate of the droplets. The flow rate of the liquid can be displayed by the scale line, which is more accurate than that of the ordinary infusion device, thereby achieving the purpose of facilitating the precise control of the droplet speed.

The invention relates to the technical field of dampers, in particular to a lasso type damper. Comprising a damper body, a linear moving rod piece, a movable sleeve piece, a first movable plate piece and a second movable plate piece. A movable cavity is formed in the damper body, fluid cavities are formed in the upper end and the lower end of the movable cavity, and the fluid cavities are filled with fluid damping media. The linear moving rod piece longitudinally penetrates through the damper body and is arranged in the center of the movable cavity in a penetrating mode. The damper body is covered with the movable sleeve, the movable sleeve can move in the longitudinal direction, the inner side of the top end of the movable sleeve is connected with the linear moving rod, and the outer side of the top end of the movable sleeve is bundled through a lasso and fixed to a target position. According to the damping force of the damping equipment required by the target, the linear moving rod piece can be rotated, so that the angle between the first movable plate piece and the second movable plate piece is changed, the size of a connecting channel between the two fluid cavities is adjusted, and the flowing speed of the fluid damping medium is changed.

The utility model relates to injection type plasma deodorization equipment which comprises a treatment box, a partition plate is fixedly connected to the interior of the treatment box, an activated carbon plate is arranged in the treatment box, plasma generators are fixedly installed on the inner top wall and the inner bottom wall of the treatment box respectively, a turbulent flow assembly is arranged on the treatment box, and the turbulent flow assembly is connected with the activated carbon plate. A spraying assembly is arranged on the treatment box, and the turbulent flow assembly comprises four fixing frames which are arranged on the inner top wall and the inner bottom wall of the treatment box respectively. According to the injection type plasma deodorization equipment, by arranging the turbulent flow assembly, in the process that gas is deodorized through the plasma generator, the flowing speed of the gas in the treatment box can be effectively slowed down through the arrangement of the turbulent flow plate, so that the gas can be in full contact reaction with plasma gas generated by the plasma generator, and the deodorization effect of the gas is improved. And the angle of the spoiler can be adjusted according to the use requirements, so that the flowing speed of the gas is changed, and a user can use the device conveniently.

The utility model relates to the technical field of line protection, and discloses a line protection structure convenient for heat dissipation, which comprises a right connecting piece, the side wall of the right connecting piece is fixedly connected with a buckling piece, the buckling piece is clamped with a left connecting piece, and the inner wall of the left connecting piece is provided with a cooling assembly. According to the line protection structure facilitating heat dissipation, the flow deflectors are pushed by water flow, the water flow is changed from straight-through to vortex, the vortex can improve the heat exchange efficiency between cooling liquid and a line and increase effective utilization of a heat transfer surface, and small protruding strips and protruding points on the flow deflectors can improve the friction and disturbance effect of the surfaces of the flow deflectors; furthermore, a flow guide groove is formed in the side wall of the cooling pipe, the flow guide groove is a spiral groove, the rotation direction of the flow guide groove is consistent with the rotation direction of the flow deflectors, the water flow vortex is guided, maintenance of the vortex is promoted, and the heat exchange effect of cooling liquid is guaranteed.