30results about How to "Easy flow adjustment" patented technology

Process and device for the transport of granular solids with a controlled flow rate, in particular for the transport of catalyst in a hydrocarbon reforming unit. The device comprises a gravity-feed pipe (A) for solid particles in the dense phase, a pneumatic transport pipe (C) in the dilute phase, and an inclined transfer pipe (B) that connects, without a buffer space, the base of the feed pipe to the pneumatic transport pipe, whereby this transfer pipe comprises means (17, 18, 35) for injection of a secondary gas located at the junction between the feed pipe and the transfer pipe.

The invention discloses an adjusting ball valve which comprises a valve, a bonnet, a ball, a valve stem and a driving mechanism. The valve stem can be driven by the driving mechanism to rotate, the valve is provided with a valve cavity, a medium inlet and a medium outlet, the medium inlet and the medium outlet are communicated with the valve cavity, the ball is arranged in the valve cavity, is connected with the valve stem in a linkage manner and comprises a closing portion and a communication portion, the medium inlet and the medium outlet can be closed by the closing portion and can be communicated with each other via the communication portion, the communication portion comprises a communication inlet portion, a middle straight slot and a communication outflow portion which are sequentially communicated and connected with one another in the direction from the medium inlet to the medium outlet, the communication inlet portion is provided with a plurality of inlet through holes which are parallelly formed at intervals, the communication outflow portion is provided with a plurality of outflow through holes which are parallelly formed at intervals, and the inner ends of the inlet through holes and the inner ends of the outflow through holes are communicated with the middle straight slot. The adjusting ball valve has the advantages of reasonable structural design and accuracy in flow adjustment.

The invention discloses an adjusting ball valve which comprises a valve, a bonnet, a ball, a valve stem and a driving mechanism. The valve stem can be driven by the driving mechanism to rotate, the valve is provided with a valve cavity, a medium inlet and a medium outlet, the medium inlet and the medium outlet are communicated with the valve cavity, the ball is arranged in the valve cavity, is connected with the valve stem in a linkage manner and comprises a closing portion and a communication portion, the medium inlet and the medium outlet can be closed by the closing portion and can be communicated with each other via the communication portion, the communication portion comprises a communication inlet portion, a middle straight slot and a communication outflow portion which are sequentially communicated and connected with one another in the direction from the medium inlet to the medium outlet, the communication inlet portion is provided with a plurality of inlet through holes which are parallelly formed at intervals, the communication outflow portion is provided with a plurality of outflow through holes which are parallelly formed at intervals, and the inner ends of the inlet through holes and the inner ends of the outflow through holes are communicated with the middle straight slot. The adjusting ball valve has the advantages of reasonable structural design and accuracy in flow adjustment.

A flow damper includes a valve body, a piston, a spring, and a cap. The valve body is fastened to the rail main body and has a fuel passage therein. The fuel passage communicates between a fuel hole of the rail main body and the injector. The fuel passage includes a piston sliding hole on its rail main body-side. The piston is slidably held on an inner circumferential surface of the piston sliding hole. The spring urges the piston in an opposite direction from a direction of fuel flowing through the fuel passage. The cap includes a small diameter portion and a large diameter portion. The small diameter portion is fitted into the inner circumferential surface of the piston sliding hole with a gap between the small diameter portion and the piston sliding hole. The large diameter portion is located between the valve body and the rail main body.

The invention provides a novel drive clutch self-priming device mainly applied to lifting of medium liquid. The drive clutch self-priming device is technically characterized in that a double-shaft motor is adopted, each of the front and rear ends of the motor is provided with one shaft, the front shaft is connected with a centrifugal pump, a rear shaft is connected with a vacuumizing device through a clutch, an outlet of the centrifugal pump is provided with an outlet connection pipe fitting which is connected with an outlet self-priming valve and a clutch separation pipeline, and the clutch separation pipeline is connected with a clutch separation device which is connected with the clutch. The drive clutch self-priming device has the advantages that the self-priming device and the centrifugal pump are driven by one motor or diesel engine, no electric control system is needed, and accordingly the device is simpler and more compact in integral structure, lower in manufacturing cost, stable in performance and low in failure rate; a diaphragm type vacuumizing device, a gas ring vacuum pump, a roots pump and the like can serve as the vacuumizing device, and the drive clutch self-priming device is suitable for different working conditions of high flow, toxicity, harmfulness and the like.

The invention discloses a novel flow control valve, and relates to the field of flow control over pipelines. The novel flow control valve comprises a pipeline, a sealing pipe is installed on the outerside of the pipeline, a plurality of flow adjusting plates inserted into the pipeline are arranged in the sealing pipe, and a servo motor and a gear ring are arranged on the inner wall of the sealingpipe; and a gear is fixed to the driving end of the servo motor and engaged with the gear ring, the gear ring is connected with the inner wall of the sealing pipe in a sliding mode through a sealinggasket, an oblique gear ring is fixed to the side, away from the servo motor, of the gear ring, and a plurality of threaded rods are rotatably mounted on the side, close to the oblique gear ring, of the inner wall of the sealing pipe. Bevel gears are installed at the top ends of the threaded rods and engaged with the bevel gear ring, and the bottom ends of the threaded rods and the flow adjustingplates are installed in a threaded mode. According to the flow control valve, the flow of fluid in the pipeline can be rapidly, conveniently and stably adjusted through the arrangement of all the structures, the adjusting range of the flow control valve is 0-100%, and influences on the original flow of the pipeline can be avoided.

The invention relates to a high-voltage switch operating mechanism, in particular to a signal cylinder and a hydraulic operating mechanism with the signal cylinder. The signal cylinder is adopted in the hydraulic operating mechanism and comprises a cylinder body component and a piston arranged in the cylinder body component. An oil inlet channel is arranged at one end of the cylinder body component. A flow adjusting component is arranged on the oil inlet channel. The side, opposite to a plug, of the piston is provided with a piston rod. The outer circumferential face of the end, away from the piston, of the piston rod and the cylinder body component are in seal fit. A constant high-pressure oil cavity is formed in the side, close to the piston rod, of the piston in the cylinder body component and a work oil cavity is formed in the other side of the piston. In the process of use, moving time of the piston can be adjusted simply by adjusting the flow of the oil inlet channel through the flow adjusting component, stepless accurate adjustment can be conducted on closing and opening time of a circuit breaker, and the problem that an existing signal cylinder is poor in closing and opening time adjusting accuracy of the circuit breaker is solved.

The invention relates to the technical field of cement conveying, and specifically relates to cement conveying equipment based on quantitative conveying and capable of preventing cement ash from raising dust. The cement conveying equipment based on quantitative conveying and capable of preventing cement ash from raising dust comprises a conveyor and a cement conveying mechanism communicating with the end part of the conveyor, wherein the cement conveying mechanism at least comprises a quantitative conveying device and a dust removal device, the quantitative conveying device comprises a conveying box, a discharging port is formed in the outer wall, away from the conveyor, of the conveying box, the end part of the conveying box communicates with the end part of the conveyor, and a spiral conveying rod is rotationally arranged in the conveying box, and the end part of the spiral conveying rod rotationally stretches out of the interior of the conveying box and is connected with a rotating motor; and the dust removal device comprises a collecting box, the collecting box is fixedly arranged at the top of the conveying box, the outer wall of the collecting box communicates with an induced draft fan, the air inlet end of the induced draft fan communicates with a dust suction pipe, the dust suction pipe is in a spiral shape, the end part of the dust suction pipe communicates with a dust suction cover, and the dust suction cover is slidably arranged at the top of the conveyor. According to the invention, cement can be conveyed conveniently, dust can be removed, and the situation that cement dust drifts away and harms health is avoided.

A valve for switching waterways and adjusting flow has a fixed seat, a control piece and an operation mechanism. The fixed seat is provided with a fixed face, an inlet waterway and two outlet waterways, the inlet port of the inlet waterway and the outlet ports of the outlet waterway are arranged on the fixed face. The control piece is provided with a control face that is relied on the fixed face hermetically and a communicating groove that is concavely arranged on the control face. The operation mechanism is connected with the fixed seat and the control piece, and can drive the control piece to move, and then the control face can be driven to rotate and slide relative to the fixed face.

The invention provides a numerical control tooth root rolling machine tool for rolling machining of the tooth root of a torsion shaft. Rolling machining can be conducted on the tooth root of the torsion shaft by the numerical control tooth root rolling machine tool, and tooth root rolling machining efficiency is improved. The numerical control tooth root rolling machine tool comprises a machine tool main body, a left tip, a tooth root rolling head, a proximity switch, a torsion shaft and feeding mechanism synchronous movement structure, a numerical control indexing rotary table, a hydraulic chuck, a rotary hydraulic cylinder, an auxiliary support, a numerical control system and a hydraulic system. When the tooth root is rolled, the torsion shaft needs to be located and clamped, thereby being clamped tightly by the hydraulic chuck, and meanwhile the torsion shaft is axially located by the left tip. When the tooth root is rolled, indexing of the torsion shaft is needed, and the numericalcontrol indexing rotary table drives the torsion shaft to achieve indexing rotation. Therefore, through the numerical control rolling machine tool, numerical control rolling machining of torsion shaft splines of various models can be achieved, rolling efficiency is improved, and cost is lowered.

The present invention is directed to an adjustment device and method for adjusting the volume of one or more medical infusion fluids (10). This device can comprise any of at least one first determining unit (21) adapted to measure and / or determine the volume of the medical infusion fluid flowing through a delivery duct (11) and adapted to provide a respective first signal (21a), at least one second determining unit (23; 24; 25) adapted to measure and / or determine the volume and / or weight of at least one released body fluid and / or a physiological parameter and further adapted to provide a respective second signal (23a; 24a; 25a) and at least one volume controlling unit (20) adapted to control the flow of the medical infusion fluid through the delivery duct on the basis of the first and thesecond signals.

The utility model relates to a built-in adjustable flow electrosurgical pen, which belongs to the technical field of medical equipment. The invention comprises a handle and a cutter head. A suction tube is arranged inside the handle. The cutter head part extends into the handle and is connected to the suction tube. There is a flow regulating mechanism to control the flow of the suction tube. The invention has a reasonable structure and is convenient for the rapid adjustment of the smoking flow rate of the electric knife pen, so as to improve the operation efficiency and reduce medical accidents.

The invention provides a numerically controlled cylindrical rolling machine tool for external rolling processing of a torsion shaft, which comprises a machine tool body, a cylindrical rolling head, a double-center positioning device, a fork connecting piece, an internal spline ferrule, a full A closed protective cover, a displacement measurement system, a precision oil mist cooling system, a numerical control system and a hydraulic system; the cylindrical rolling head of the present invention adopts the structure of a multi-roller symmetrical rolling device. The radial direction is subjected to multiple equal pressures; a displacement sensor is installed in the hydraulic cylinder of the cylindrical rolling head, and the displacement value of the rolling cylinder fed back by the displacement sensor is used to calculate the change value of the rolling diameter during the cylindrical rolling process, which can be Realize the intelligent judgment of the limit position of the outer circle rolling arc end; replace the traditional chuck with the shifting fork connector, optimize the transmission structure, and at the same time make the operation more convenient for workers, more suitable for streamlined production operations, and higher rolling processing efficiency.

The invention discloses a flow-adjustable detachable spiral type labyrinth emitter. The emitter is characterized by comprising an emitter body, a water outlet annular cavity in threaded connection with the outside of the emitter body, and capillary pipes in threaded connection with the two ends of the emitter body; a spiral labyrinth flow channel and an outer thread are arranged on the outer wall of the body emitter; a water inlet is formed in the outer wall close to one end of the emitter body, and the water inlet is communicated with an inner cavity of the emitter body and the spiral labyrinth flow channel; a water outlet is formed in the outer wall of the water outlet annular cavity, and the water outlet is communicated with the spiral labyrinth flow channel of the emitter body. The emitter body and the water outlet annular cavity can be conveniently screwed or separated, the flow at the water outlet is adjustable, cleaning and overhauling of the emitter body are facilitated, and the anti-blocking performance and reutilization performance of the whole emitter are improved.

The invention discloses a flow-adjustable detachable spiral type labyrinth emitter. The emitter is characterized by comprising an emitter body, a water outlet annular cavity in threaded connection with the outside of the emitter body, and capillary pipes in threaded connection with the two ends of the emitter body; a spiral labyrinth flow channel and an outer thread are arranged on the outer wall of the body emitter; a water inlet is formed in the outer wall close to one end of the emitter body, and the water inlet is communicated with an inner cavity of the emitter body and the spiral labyrinth flow channel; a water outlet is formed in the outer wall of the water outlet annular cavity, and the water outlet is communicated with the spiral labyrinth flow channel of the emitter body. The emitter body and the water outlet annular cavity can be conveniently screwed or separated, the flow at the water outlet is adjustable, cleaning and overhauling of the emitter body are facilitated, and the anti-blocking performance and reutilization performance of the whole emitter are improved.

The invention discloses a control method of a spray coating robot. According to the method, spray coating flow rate calculation is performed before fixed mold spray coating and movable mold spray coating, so that the spray coating flow rate can be regulated for meeting the mold temperature requirements. The method has the advantages that the automatic and manual switching operation can be performed, and the design is reasonable.

The invention discloses an efficient road surface edge sealing device which comprises a vehicle body, a material storage barrel and a coating mechanism, the material storage barrel is arranged on the vehicle body, the bottom of the material storage barrel penetrates through a bottom plate of the vehicle body and communicates with a material scattering pipe through a flow adjusting mechanism, the coating mechanism is arranged on one side of the bottom plate, and the material scattering pipe and the coating mechanism are located on the same side of the bottom plate. The efficient road surface edge sealing device is attractive, straight and smooth in edge sealing construction of joint seams of a road surface, easy to operate, convenient to adjust flow of materials, capable of coating while filling, capable of reducing manual labor, high in practicability, capable of improving working efficiency, simple in structure, convenient to operate, small in investment, attractive in construction effect and capable of meeting construction requirements.

The present invention provides high-quality insoluble sulfur and a method for producing the high-quality insoluble sulfur by passing sulfur vapor through a gas-liquid separator to remove liquid sulfur before supplying sulfur vapor to a cooler. In the method for producing insoluble sulfur according to the present invention, problems in the production process such as pipeline clogging can be prevented, and high-quality insoluble sulfur with a low sieve residue content (100 mesh 1.5% or less) can be produced. The insoluble sulfur produced by the production method of the present invention is of high quality with an IS (insoluble sulfur to total sulfur) content of 90% or more, a sieve residue of 1.5% or less, an HTS of 71% or more, and a particle size of 5 μm to 30 μm. Insoluble sulfur can therefore be used as a vulcanizing agent in the rubber industry, especially in the manufacture of tires.