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32results about How to "Speed up inflow" patented technology

Multiphase flow hybrid conveying pipeline resistance reduction device and method of mine field

The invention discloses a multiphase flow hybrid conveying pipeline resistance reduction device and a multiphase flow hybrid conveying pipeline resistance reduction method of a mine field. The multiphase flow hybrid conveying pipeline resistance reduction device and the multiphase flow hybrid conveying pipeline resistance reduction method are characterized in that: hybrid conveyed fluid is accelerated by a reducing pipe and then enters a device main body pipeline by a tangential inlet pipe; and an annular space between the device main body pipeline and a hot water reflow pipe forms a rotational flow. Due to different densities, oil phase, gas phase and water phase form layered circular flows in the device main body pipeline. The water phase is closely attached to the inner wall of the device main body pipeline, so that direct contact of oil with the pipe wall is avoided, and the conveying resistance is greatly reduced. The oil phase is positioned between the gas phase and the water phase and is driven by the gas phase and the water phase to be transferred towards downstream side. One end of the oil, gas and water three-phase hybrid conveying rotational flow resistance reduction device is connected with a hot water circulating system to heat the hybrid conveyed fluid, so that on one hand, the viscosity of crude oil in the hybrid conveyed pipe can be reduced, and on the other hand, gas can be expanded properly, and the air flow speed is increased. The multiphase flow hybrid conveying pipeline resistance reduction device and the multiphase flow hybrid conveying pipeline resistance reduction method have the advantages of adoption of a physical technology for resistance reduction, no toxicity, no pollution, low manufacturing cost, reliability in operation, good resistance reduction effect, capability of effectively preventing paraffin deposit and high promotion and application value.
Owner:SOUTHWEST PETROLEUM UNIV

Wind power generation unit blade reinforced with needle fiber and fabrication process thereof

The invention discloses a wind power generation unit blade reinforced with needle fiber and a fabrication process thereof. The blade comprises any one of laminated fiber fabric layers, a resin matrix material and glass fiber or carbon fiber, the glass fiber or the carbon fiber is vertically densely distributed in the laminated fiber fabric layers, and the resin matrix material is soaked between the laminated fiber fabric layers. The fabrication process comprises the following steps: preparing a die and layering the fiber fabric; performing needle punching on the carbon fiber or the glass fiber; pipe laying; forming enclosed space with seal tapes and vacuum bags; opening and pre-vacuumizing a vacuum pump; opening a resin inlet tube and a resin outlet tube to extract the resin matrix material; and curing the resin matrix material, and then demolding, forming and performing surface repair on the resin matrix material to obtain the wind power generation unit blade reinforced with the needle fiber. The wind power generation unit blade has the advantages of improving layer shearing strength of a blade material, being beneficial to vacuum infusion process and improving the strength of the whole blade. The fabrication process has the advantages of forming a quasi-3D braided material, being capable of reducing thickness and weight of the blade, and lowering blade cost.
Owner:内蒙古工大博远风电装备制造有限公司

Sealing loop forming pump

The invention relates to a sealing loop forming pump. A multi-port component (70) comprises a cylinder seat which is rotatingly disposed a housing (108) and consists of a plurality of cylinder seats of hydraulic cylinders (122) and a plurality of ports which is fixedly disposed on the valve plate (116) of the housing (108). A part of the ports are connected to the pressure chamber of the cantilever hydraulic cylinder, and the left are connected to an oil tank. A V-shaped groove which turns smaller forward is disposed at the end of each port opening which is at the same side of the rotation direction of the cylinder seat (112). The v-shaped grooves which are respectively disposed at the piston upper dead center and at the piston lower dead center are made bigger, while the v-shaped grooves which are disposed between the piston upper dead center and the piston lower dead center are made smaller.
Owner:KANZAKI KOKYUKOKI MFG

Vortex diode

The invention discloses a vortex diode, which comprises an upper cover plate, a lower cover plate, a central tube shell, a tangential tube shell and the like; the central tube shell is divided into a central conical tube, a circular arc shrinking tube and a central straight tube from bottom to top; the lower end of the central tube shell is connected with the upper cover plate; the upper cover plate is abutted with the lower cover plate to form a vortex cavity; the central straight pipe is provided with guide blades; the tangential tube shell is tangent to the vortex cavity on the circumference and is divided into a tangential straight tube and a tangential conical tube from inside to outside; and the joint of the tangential tube shell of the vortex cavity is a circular arc transition region. The central tube is provided with the guide blades, the tangential tubes and the central tube are respectively provided with a conical tube structure, and the vortex cavity is divergent to increase the impedance ratio of the vortex diode; and the peripheral thickness of the vortex cavity is equal to the tube diameter of the tangential straight tube, the joint of the central tube and the vortex cavity is a large chamfer angle, the joint of the tangential tubes and the vortex cavity is circular arc transition, and the impedance ration of positive flow and reverse flow is 20 to 40.
Owner:ZHEJIANG UNIV

Gas-cooled machine, in particular a turbo-generator

The invention relates to a gas-cooled machine, in particular a turbo-generator, comprising a shaft, on which is positioned an axial ventilator, a cover that divides an inflow chamber for a cooling gas transported by the axial ventilator from an outflow chamber for this cooling gas, and a cylindrical channel segment that is positioned coaxially to the axial compressor and surrounds the axial compressor radially, whereby the inflow chamber comprises an asymmetrical cooling gas supply, and whereby in the inflow chamber means for homogenizing the cooling gas supply to the axial ventilator are provided. In order to improve the cooling, and therefore the efficiency of the machine, the inflow chamber forms a rotation-symmetrical annular chamber in the region of an inflow opening of the channel segment. A cylindrical annular collar is positioned coaxially to the axial ventilator within this annular chamber. The annular collar projects axially into the annular chamber and forms a completely surrounding, radial throttling gap at the inflow opening.
Owner:ALSTOM TECH LTD

Tidal current energy power generation device and using method thereof

The invention provides a tidal current energy power generation device and a using method thereof, and belongs to the technical field of tidal current energy power generation. The tidal current energypower generation device comprises a vacuum water storage tank, a first channel, a second channel, a first pipeline, a second pipeline, a water inlet pipe and a vacuumizing mechanism, a partition plateis arranged in the vacuum water storage tank and partitions the vacuum water storage tank into a first cavity and a second cavity, the first cavity and the second cavity communicate through a gap, the first channel and the second channel are both formed in the vacuum water storage tank, a first through hole and a second through hole both communicate with the second cavity, the first pipeline is horizontally and fixedly arranged outside the first channel, the second pipeline is horizontally and fixedly arranged outside the second channel, the water inlet pipe is fixedly arranged on the vacuumwater storage tank, provided with a solenoid valve, and internally provided with a water flow power generator, and when the water inlet pipe, the first pipeline and the second pipeline are all completely submerged below the water surface, the vacuumizing mechanism can pump air in the first cavity and the second cavity. Tidal current energy can be fully utilized, and thus the power generation efficiency is improved.
Owner:王晖

Multilayer interconnection FPC with rapid tin guide via hole

The invention discloses and provides a multilayer interconnection FPC with a rapid tin guide via hole, which is simple in structure, high in material utilization rate, capable of rapidly fusing enoughsoldering tin during welding and stable in performance. The FPC comprises a main FPC and an auxiliary FPC, the main FPC is provided with a main output area and a main input area, and the auxiliary FPC is provided with an auxiliary output area and an auxiliary input area; a main output bonding pad is arranged in the main output area, a main input bonding pad is arranged in the main input area, anauxiliary output bonding pad is arranged in the auxiliary output area, an auxiliary input bonding pad is arranged in the auxiliary input area, and tin guide via holes are formed in the auxiliary output bonding pad and the auxiliary input bonding pad; each of the main output bonding pad and the main input bonding pad is provided with at least one exhaust hole; a metal layer is plated in the tin guide via hole, and the metal layer of the tin guide via hole on the auxiliary input bonding pad is connected with the auxiliary input bonding pad; soldering tin is fused into the tin guide via hole, andthe main input bonding pad and the auxiliary output bonding pad communicate through the soldering tin. The multilayer interconnection FPC is applied to the technical field of FPC production.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA +1

Simultaneous sampling device of multiple water layers for water body pollution detection

InactiveCN110608923ASpeed ​​up the influxSpeed up inflowWithdrawing sample devicesWater level riseSewage
The invention relates to the technical field of meters and instruments, and discloses a simultaneous sampling device of multiple water layers for water body pollution detection. The simultaneous sampling device comprises an operating floor, and a bracket is fixedly connected above the operating floor; an elliptical disk drives a first connecting rod to move, so that a second connecting rod and a third connecting rod rotate with a lug at the joint of which as a rotation point, the third connecting rod moves up and down to drive a pressing plate to synchronously move, the pressing plate is squeezed away from a rubber ball, when the rubber ball squeezes a gear lever, the gear lever moves downward to deviate from a moving rod to drive a waterstop to separate from a water inlet, sewage from different water layers is filled into a collection chamber respectively, and the rubber ball is squeezed, the air is discharged into the water, the sewage is sucked into a collection bottle from the water inlet, the sampling speed is accelerated, as the water level rises, a floating block moves up to block a pass hole of an air conveying pipe and blocks the water inlet, when the rubber ball is strokeand it is discovered that the deformation degree thereof is smaller, it indicates that the sewage in the collection bottle has been collected, thereby reaching an effect of simultaneous water collection at different water layers.
Owner:施亮

Cooling device with air passage circulation of new energy vehicle

The invention discloses a cooling device with air passage circulation of a new energy vehicle. The cooling device comprises air ducts A and electric motors, wherein the air ducts A are in sealed connection with air inlets; flanges at the right ends of the air ducts A are connected with the flanges at the left end of an air duct B by fastening bolts; each gasket is arranged between the two corresponding flanges; fixing ring lugs are mounted on the two sides of each air duct A and the two sides of the air duct B; the right end of the air duct B is in sealed connection with an air outlet providedwith connecting pipes; connecting rods fixed to the electric motors are fixedly connected to the inner wall of the air duct B by fixing blocks; a soundproof pad is mounted at the inner wall of the air duct B; rotating shafts mounted on the electric motors are fixedly connected to impeller mounting plates; impellers are fixed on the impeller mounting plates; and a fine pore filter screen on the left side of the electric motors is fixed to the inner wall of the air duct B. The cooling device with the air passage circulation of the new energy vehicle is capable of utilizing natural wind to coolthe new energy vehicle by virtue of the air inlets and the air ducts, saves energy and is free of pollution.
Owner:黄邦擎

Wind power generation unit blade reinforced with needle fiber and fabrication process thereof

InactiveCN101614182BImprove layer shear strengthSpeed up inflowFinal product manufactureMachines/enginesGlass fiberFiber
The invention discloses a wind power generation unit blade reinforced with needle fiber and a fabrication process thereof. The blade comprises any one of laminated fiber fabric layers, a resin matrix material and glass fiber or carbon fiber, the glass fiber or the carbon fiber is vertically densely distributed in the laminated fiber fabric layers, and the resin matrix material is soaked between the laminated fiber fabric layers. The fabrication process comprises the following steps: preparing a die and layering the fiber fabric; performing needle punching on the carbon fiber or the glass fiber; pipe laying; forming enclosed space with seal tapes and vacuum bags; opening and pre-vacuumizing a vacuum pump; opening a resin inlet tube and a resin outlet tube to extract the resin matrix material; and curing the resin matrix material, and then demolding, forming and performing surface repair on the resin matrix material to obtain the wind power generation unit blade reinforced with the needle fiber. The wind power generation unit blade has the advantages of improving layer shearing strength of a blade material, being beneficial to vacuum infusion process and improving the strength of the whole blade. The fabrication process has the advantages of forming a quasi-3D braided material, being capable of reducing thickness and weight of the blade, and lowering blade cost.
Owner:内蒙古工大博远风电装备制造有限公司

Magnetic jig and multilayer FPC welding method

The invention relates to a magnetic jig which comprises a magnetic pressure board and a magnetic carrier board. A plurality of magnetic beads are arranged in the magnetic carrier board, and the size and the number of the magnetic beads are adjusted to control the attraction force of the magnetic carrier board to the magnetic pressure board. The invention relates to a multilayer interconnection FPCwelding method, which comprises the magnetic jig and comprises the following steps of: S1, reinforcing the bottom of a main board; S2, carrying out tinning processing on a main output bonding pad anda main input bonding pad; S3, pasting a layer of double faced adhesive tape on the surface, close to a secondary board, of the main board or the surface, close to the main board, of the secondary board; S4, aligning the main board with the secondary board, and attaching the secondary board to the main board after alignment; and S5, placing the secondary board and the main board on a magnetic carrier board, pressing the magnetic pressure board onto the secondary board by using magnetic attraction of the magnetic pressure board and the magnetic carrier board, and applying proper pressure to themagnetic pressure board. According to the invention, poor welding caused by surface tension can be improved.
Owner:成都大超科技有限公司

Multilayer interconnected electronic circuit board

The invention relates to a multilayer interconnected electronic circuit board, which comprises a main board and one or more secondary boards. Each secondary board is a single-sided window board, and the area of each secondary board is smaller than that of the main board. The surface, far away from the main board, of each secondary board is provided with a jumper circuit and a butt-joint bonding pad, and the butt-joint bonding pad is directly communicated with the jumper circuit. Each secondary board is provided with a window at a position corresponding to the butt-joint bonding pad, and the window exposes the butt-joint bonding pad with a proper size. The main board is provided with bonding pads at the positions corresponding to the butt-joint bonding pads of the secondary boards, and thebonding pads penetrate through the windows to be connected with the butt-joint bonding pads. The material utilization rate is high, and the cost can be effectively reduced.
Owner:成都大超科技有限公司

A segmented turbine blade for a hydraulic torque converter

The invention relates to a segmented turbine blade of a hydraulic torque converter. The turbine blade is segmented in a position with a pressure value of 0 on a pressure surface; the blade near a turbine inlet part is a main blade; the blade near a turbine outlet is a tail blade; the main blade near the position with the pressure value of 0 on the pressure surface is a transition section; the transition section is formed by flatly shifting an original pressure surface to a suction surface by 2 / 5-3 / 5 of the blade thickness; and the position with the pressure value of 0 on the pressure surface is connected in an arc manner. The turbine blade is segmented on the edge of a high-pressure area of the pressure surface of the turbine blade; the turbine blade of the hydraulic torque converter is designed as two segments; the area transited from the main blade to the segmented place is formed by flatly shifting the original pressure surface to the suction surface by 2 / 5-3 / 5 of the blade thickness; and the position with the pressure value of 0 on the pressure surface is connected in an arc manner, so that the pressure of the pressure surface of a turbine can be increased, the torque of the turbine is increased, the torque conversion ratio is increased, and the purpose of improving the efficiency of the torque converter is achieved.
Owner:JILIN UNIV

Multilayer interconnected electronic circuit board

The invention relates to a multilayer interconnected electronic circuit board, which comprises a main board and one or more jumper boards, wherein each jumper board is a double-sided board, the area of each jumper board is smaller than that of the main board, one surface of each jumper board is provided with a jumper circuit, the other surface of the jumper circuit is provided with a plurality ofbutt-joint bonding pads, via holes are formed in the butt-joint bonding pads, the butt-joint bonding pads are communicated with the jumper circuits through the via holes, the main board is provided with a plurality of bonding pads corresponding to the butt-joint bonding pads, and the butt-joint bonding pads are connected with the bonding pads in a one-to-one correspondence manner. According to themultilayer interconnected electronic circuit board, the material utilization rate is high, and the cost can be effectively reduced.
Owner:成都大超科技有限公司

Front gas and liquid separation vacuum maintaining device

The invention relates to a front gas and liquid separating vacuum maintaining device. The device is simple in structure, small in floor size and capable of being arranged on site; a first partition plate and a second partition plate are arranged inside a steam-gas separating device, the internal space of the steam-gas separating device is partitioned into three cabins through the first partition plate and the second partition plate, the cabins are the working water outlet cabin, the heat exchange cabin and the working water inlet cabin from left to right in sequence, and working water enters the working water inlet cabin from a second water inlet in the right side of the steam-gas separating device, and flows through a heat exchange tube to perform heat exchange with non-condensable gas with high temperature inside the heat exchange cabin; working water flows through the heat exchange tube to perform heat exchange inside the heat exchange cabin, due to the fact that the heat exchange tube is arranged horizontally, the heat exchange efficiency with the non-condensable gas is high, the cooling efficiency of the non-condensable gas is high, the working efficiency of a vacuum pump is improved, and the working state and the service life of the vacuum maintaining device are ensured.
Owner:WUHAN WU PUMP PUMP MFG

Drug delivery device for medical oncology

The invention discloses a tumor internal medicine drug delivery device. The drug delivery device comprises a drug delivery box and a drug feeding box, the drug delivery box and a clamping structure are connected through snap joints and inserting bones, a micro camera is mounted on the lower end of the clamping structure, gaskets are arranged on the outer side of the clamping structure, the snap joints are arranged on the inner sides of sliding blocks, sliding grooves matched with the sliding blocks are formed in the lower end of the drug delivery box, a pushing plate is installed at the innerside of the drug delivery box, drug delivery tubes are installed at the lower end of the drug delivery box, drug delivery heads are installed at the lower ends of the drug delivery tubes, small holesare formed in the outer sides of the drug delivery heads, scales are formed in the outer side of the drug feeding box, a drug inlet is formed in the upper end of the drug feeding box, and a display screen, a power indicator and a power switch are installed at the upper end of the drug delivery box. According to the drug delivery device, the clamping structure and the drug delivery box can be disassembled, the clamping structure is adjustable in angle, the drug inlet and an inclined body can accelerate the flow rate of a drug, and the drug delivery device has a novel structure and is safe to use.
Owner:成植温 +3

Vortex diode

The invention discloses a vortex diode, which comprises an upper cover plate, a lower cover plate, a central tube shell, a tangential tube shell and the like; the central tube shell is divided into a central conical tube, a circular arc shrinking tube and a central straight tube from bottom to top; the lower end of the central tube shell is connected with the upper cover plate; the upper cover plate is abutted with the lower cover plate to form a vortex cavity; the central straight pipe is provided with guide blades; the tangential tube shell is tangent to the vortex cavity on the circumference and is divided into a tangential straight tube and a tangential conical tube from inside to outside; and the joint of the tangential tube shell of the vortex cavity is a circular arc transition region. The central tube is provided with the guide blades, the tangential tubes and the central tube are respectively provided with a conical tube structure, and the vortex cavity is divergent to increase the impedance ratio of the vortex diode; and the peripheral thickness of the vortex cavity is equal to the tube diameter of the tangential straight tube, the joint of the central tube and the vortexcavity is a large chamfer angle, the joint of the tangential tubes and the vortex cavity is circular arc transition, and the impedance ration of positive flow and reverse flow is 20 to 40.
Owner:ZHEJIANG UNIV

Membrane filter plate

The invention provides a membrane filter plate. The membrane filter plate comprises a solid core plate and two membranes respectively arranged on two sides of the solid core plate, wherein an internal cavity is formed between each membrane and the solid core plate; the solid core plate comprises a middle plate body and a plate frame surrounding the middle plate body; edge positions of the middle plate body and the membranes are connected, and first grooves are formed at the joints of the middle plate body and the membranes; the first grooves are located on the surfaces of one sides, back on to the solid core plate, on the membranes. According to the membrane filter plate, the deformation stresses borne by the membranes due to the expansion of the membranes in a use process can be reduced, and the deformation of the membranes caused due to the deformation stresses can be relieved; meanwhile, the flow-out speed of filter liquid as well as the flow-in speed of washing liquid can be increased.
Owner:ZHEJIANG LONGYUAN ENVIRONMENTAL TECH CO LTD

Multiphase flow hybrid conveying pipeline resistance reduction device and method of mine field

The invention discloses a multiphase flow hybrid conveying pipeline resistance reduction device and a multiphase flow hybrid conveying pipeline resistance reduction method of a mine field. The multiphase flow hybrid conveying pipeline resistance reduction device and the multiphase flow hybrid conveying pipeline resistance reduction method are characterized in that: hybrid conveyed fluid is accelerated by a reducing pipe and then enters a device main body pipeline by a tangential inlet pipe; and an annular space between the device main body pipeline and a hot water reflow pipe forms a rotational flow. Due to different densities, oil phase, gas phase and water phase form layered circular flows in the device main body pipeline. The water phase is closely attached to the inner wall of the device main body pipeline, so that direct contact of oil with the pipe wall is avoided, and the conveying resistance is greatly reduced. The oil phase is positioned between the gas phase and the water phase and is driven by the gas phase and the water phase to be transferred towards downstream side. One end of the oil, gas and water three-phase hybrid conveying rotational flow resistance reduction device is connected with a hot water circulating system to heat the hybrid conveyed fluid, so that on one hand, the viscosity of crude oil in the hybrid conveyed pipe can be reduced, and on the other hand, gas can be expanded properly, and the air flow speed is increased. The multiphase flow hybrid conveying pipeline resistance reduction device and the multiphase flow hybrid conveying pipeline resistance reduction method have the advantages of adoption of a physical technology for resistance reduction, no toxicity, no pollution, low manufacturing cost, reliability in operation, good resistance reduction effect, capability of effectively preventing paraffin deposit and high promotion and application value.
Owner:SOUTHWEST PETROLEUM UNIV

Automatic adjustment turbine rotor device

The invention discloses an automatic adjustment turbine rotor device. The automatic adjustment turbine rotor device comprises a first device body, a steamer device arranged in the first device body, aheating device arranged in the first device body, an adjusting device arranged in the first device body, and a stabilization device arranged on the first device body. The steamer device comprises a first transmission cavity formed in the first device body, a first straight gear is rotationally arranged in the first transmission cavity, the left end of the first straight gear is connected to the adjusting device, and the inner wall of the right side of the first transmission cavity is internally provided with a first through hole in a communication manner. According to the device, the power conversion rate can be increased to a certain degree, meanwhile, the rotation speed can be automatically adjusted and controlled, the rotation speed is prevented from being too high, and more safety andreliability are achieved.
Owner:何海燕

Sand control pipe for oil-sand separation in oil and gas exploitation

ActiveCN102322246BGood sand blocking effectImprove permeabilityFluid removalNickel alloyOil well
The invention provides a sand control pipe for oil-sand separation in oil and gas exploitation. A sand control sleeve is fixed on a base pipe, seepage holes are evenly distributed on the base pipe, and an inner protective cover, a filter layer and an outer protective cover are welded together sequentially from the inside to the outside to form the sand control sleeve; the inner and the outer protective covers are respectively provided with a plurality of through holes; and the filter screen of the filter layer is made of one to four layers of foamed nickel or foamed nickel alloy. The sand control pipe has the advantages of good sand control effect, simple structure and technique, longer service life and low cost, and can effectively control sand in an oil well for a long time.
Owner:CHANGDE LYRUN MATERIAL

Engine transmission hydraulic torque converter

The invention discloses an engine transmission hydraulic torque converter. The engine transmission hydraulic torque converter comprises a pump wheel shell and a front shell cover; the front shell cover is arranged on one side of the pump wheel shell, a drive connector is formed in the middle of the side, away from the front shell cover, of the pump wheel shell, a positioning bolt is arranged on the edge of the side, away from the pump wheel shell, of the front shell cover, the front shell cover and the pump wheel shell are fixedly mounted through the positioning bolt, reinforcing protrusions are arranged on the side wall of the front shell cover, a pump wheel is arranged in the pump wheel shell, a turbine, a guide wheel and a locking clutch assembly are arranged in the pump wheel shell andthe front shell cover, the turbine is arranged on one side of the pump wheel, and the guide wheel is arranged in the middle between the pump wheel and the turbine. Through segmented fit of pump wheelblades, stress area is increased, thrust borne by the turbine is improved, the backflow vortex is effectively avoided, the oil inflow speed of a turbine inlet can be increased, the oil flowing lossesare reduced, and transmission efficiency is improved.
Owner:南京世界村汽车动力有限公司
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