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203results about How to "Change direction of motion" patented technology

High-maneuverability looper type creeping robot

ActiveCN107830307AImprove mobilityHigh ability to turn sharplyPigs/molesEngineeringOil and natural gas
The invention provides a high-maneuverability looper type creeping robot capable of doing the creeping movement and the looper type movement at the same time. The creeping robot comprises a head and atail located at the two ends. The interior comprises a power source, a controller and a sensor module. A drive part, covered with flexible skin, between the head section and the tail section is composed of at least four same driving mechanisms. Each driving mechanism is a specially-designed three-freedom-degree mechanism, the driving mechanisms can rapidly move forwards, and due to the full hemisphere rotation capability of the driving mechanisms, the robot can sharply steer and elevate a trunk with the smaller radius. Thus, the creeping robot can penetrate a small gap beneficially and can avoid obstacles through sharp turning or crawling. Through the motion manner, the creeping robot can be applied to multiple fields such as operation endoscopy, petroleum and natural gas industry pipeline checking and search and rescue actions of flood, earthquake or nuclear accidents or other disasters.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Earthquake experience device

The invention relates to an earthquake experiencing device, comprising an experiencing room, a first oil cylinder, an electro-hydraulic servo valve, a hydraulic pressure power source and an oil source auxiliary equipment which is used for guaranteeing constant output of the hydraulic pressure; the experiencing room is arranged on a desk frame; the desk frame can be arranged on a first motion guide in a horizontal slipping way; a rod of the first oil cylinder is in rigid connection with the desk frame; the first oil cylinder is the double-rod cylinder; the first oil cylinder is connected with the electro-hydraulic servo valve which is connected with the hydraulic pressure power source; the hydraulic pressure power source is connected with the oil source auxiliary equipment; the electro-hydraulic servo valve is connected with a seismic modeling controller which is used for calculating a valve port opening signal according to the seismic displacement data and outputting the valve port opening signal to the electro-hydraulic servo valve. The invention provides the earthquake experiencing device which can reproduce the real earthquake well and strengthen the experience effect, and has the advantage of rational structure.
Owner:ZHEJIANG UNIV OF TECH +1

Selective crusher for underground use

InactiveCN101947481ALarge feed sizeRaise the gradeSievingScreeningCrusherNail plate
The invention relates to a selective crusher for underground use, which comprises a supporting stand, a supporting roller mechanism and a revolving drum body, wherein the supporting roller mechanism is arranged on the supporting stand, and the revolving drum body is horizontally installed on the supporting roller mechanism through a rolling ring which is arranged around the drum body and is matched with a supporting roller in the supporting roller mechanism; the inner cavity of the roller is provided with a pre-screening section, a pushing and screening section, a crushing and screening section and a discharge section sequentially backwards from the feed end, wherein a pre-screening section discharge opening is arranged below the pre-screening section, and a discharge chute is arranged below the crushing and screening section; a center shaft which is coaxial with the roller and is driven by a power source to rotate is installed in the roller, a beater plate is arranged on the shaft body of the center shaft at the section matched with the pre-screening section, a rotor in the shape of an oblique tooth is arranged on the shaft body of the center shaft at the section matched with the crushing and screening section, and a spiral discharge auger is arranged on the shaft body of the center shaft at the section matched with the discharge section; and a plurality of axially arranged lifting plates and nail plates are installed on the inner wall of the screening drum of the crushing and screening section at intervals.
Owner:HENAN POLYTECHNIC UNIV

Minitype multi-articulation electromagnetic and piezoelectric creeping motion robot system

The invention is a micro-type multistage electromagnetic and piezoelectric peristaltic robot system, including: driving unit, elastic sealing film, front cabin, back cabin and cardan joint. The driving unit is composed of piezoelectric body, the first electromagnet, the second electromagnet and tube, the two ends of the piezoelectric body are stationarily bond with the two electromagnets, respectively to form a driver for the driving unit. The driving unit has a simple structure, and the key components only include piezoelectric device and electromagnetic coil and have very small size, the displacement transfer mainly depends on absorption force of electromagnets and tube, the requirements of cooperation, processing precision and assembly are reduced, the control is reliable, the displacement can be regulated by voltage waveform, amplitude and frequency applied on the piezoelectric body, moving direction can be changed with the control time sequence of the two electromagnets, convenient to control time sequence; the unit driver can reliably move on the interface of the ferromagnetic material, too.
Owner:SHANGHAI JIAO TONG UNIV

Method for forming contact hole

The invention discloses a method for forming a contact hole, which comprises the following steps of: sequentially forming an insulating medium layer, a hard mask layer and a photoresist layer on a semiconductor substrate; forming the graph of a contact hole opening on the photoresist layer; by taking the photoresist layer as a mask, etching the hard mask layer along the graph of the contact hole opening so as to form the contact hole opening; removing the photoresist layer; by taking the hard mask layer as the mask, etching the insulating medium layer to a certain depth along the contact holeopening by a plasma etching process, wherein the depth is one third to three fourths of the depth of a target contact hole; determining the type of charged ions accumulated on the surface of the hardmask layer, and introducing plasmas of which the type is opposite to that of the charged ions into a reaction chamber until the charged ions are neutralized; and by taking the hard mask layer as the mask, continuing to etch the insulating medium layer until the semiconductor substrate is exposed so as to form the target contact hole. The contact holes with uniform opening width can be formed by the method.
Owner:SEMICON MFG INT (SHANGHAI) CORP

Linear motor for stirling refrigerator with axial magnetic path

The invention provides a linear motor for a stirling refrigerator with an axial magnetic path. The linear motor comprises a stator, a mover and a plate spring, wherein the stator consists of a shell, a left stator core and a left stator coil, a right stator core and a right stator coil and the plate spring; the mover consists of inner magnetic steel, outer magnetic steel, a mover bracket and a piston; the inner magnetic steel is separated from the outer magnetic steel through a magnetism isolating ring; and the inner magnetic steel and the outer magnetic steel have opposite magnetizing directions and are axially magnetized. The linear motor has the advantages that: the magnetizing direction of the magnetic steel is axial; if the mover is deviated along the radial direction when the mover does reciprocating motion along the axial direction, a force opposite to the deviation direction of the mover is produced due to self-correction effects of a stator magnetic field and a mover magneticfield, so the linear motor ensures that the mover is not greatly deviated along the radial direction in a motor running process and plays a role in automatically correcting the deviation caused by anexternal force. Therefore, friction between the piston and a cylinder body can be avoided and the service life of the refrigerator is prolonged.
Owner:NO 21 RESERCH INST OF CHINA ELECTRONICS TECH GRP

Adjustable type anti-splashing wide-band laser cladding coaxial powder-feeding nozzle and manufacturing method thereof

The invention relates to an adjustable type anti-splashing wide-band laser cladding coaxial powder-feeding nozzle and a manufacturing method thereof. The adjustable type anti-splashing wide-band lasercladding coaxial powder-feeding nozzle comprises an upper body, an intermediate body, a lower body and a blowing mechanism. The upper body comprises a compression ring, a connecting hoop and an adjusting nut, the intermediate body comprises a positioning pin, a lifting flange, a gas insulation sleeve and a connecting disc, the lower body comprises a blocking piece, a gland, a cooling water hood,an outer layer gas hood, a powder-feeding hood, an inner layer gas hood and an end seal hood, and the blowing mechanism comprises a blowing groove block connected with an anti-splashing air hole of the lifting flange and a blowing pipe with the working range covering a rectangular hole in the gland. According to the adjustable type anti-splashing wide-band laser cladding coaxial powder-feeding nozzle, it is ensured that a laser protective eyewear is not polluted, powder feeding is stable and even, the powder utilization rate of laser cladding is high, the cooling effect is good, disassembly and assembly are easy, the powder-feeding width and the angle are adjustable, the defocusing amount is adjusted steplessly, and the adjustable type anti-splashing wide-band laser cladding coaxial powder-feeding nozzle is suitable for wide-band type laser cladding powder feeding of various different focal lengths and light spot sizes.
Owner:WUHAN UNIV OF TECH

Floating-type pesticide-spraying machine

A floating-type pesticide-spraying machine includes a small handcart (7) and a pesticide storage container (3) fixedly installed on the handcart (7), and is characterized in that a water suction tube (2) is arranged in the pesticide storage container (3); the lower end of the water suction tube (2) is provided with a linking nozzle (1); the upper part of the pesticide storage container (3) is provided with a water suction pump (6) which is fixedly installed on the small handcart (7) by a fixing plate (4); the water suction tube (2) is connected with a pesticide transmission tube (5) by the water suction pump (6); the pesticide transmission tube (5) is communicated with a pesticide-spraying rod (8); a hydrogen balloon (9) is arranged on the pesticide-spraying rod (8) by a connecting piece (10); the pesticide-spraying rod (8) is provided with a nozzle (11); and the end part of the pesticide-spraying rod (8) is provided with a sealing element (12). The floating-type pesticide-spraying machine can realize super large-area high-speed pesticide spraying, can conveniently change the moving direction and speed due to low energy consumption and freely choose the road conditions, and simultaneously has low manufacturing requirements.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Conductive liquid micro driving device and applications thereof

The invention discloses a conductive liquid micro driving device and applications thereof. Multiple rectangular coils form a coil array, multiple sequentially-arranged electromagnetic poles are formed, insulation layers are arranged among wires of the rectangular coils, magnetic conductive layers fills gaps of the wires of the rectangular coils coated by the insulation layers and the outer parts, a sealing cover realizes functions of three protection and mechanics and the like, inverters are connected with the rectangular coil array, a time-varying electric field generates a traveling wave magnetic field in the same direction and an electromagnetic force, the electromagnetic force drives the conductive liquid to flow, a flexible substrate can be connected with a selected mounting part, and a pipeline inner wall or an outer wall phase in a different shape can be matched. Accurate control on different components, the flow amount, the flow direction and the flow speed of the conductive liquid can be realized, and the conductive liquid micro driving device has the advantages that the overall structure is compact; the device is flexible and deformable; pressed driving does not exist; no push rod mechanism is needed; the pipeline can be cleaned by itself; assembly and disassembly are convenient; the space utilization rate is high; the application range is wide; the use is simple; portability is realized; the noise is small; the service life is long and the like.
Owner:SHANGHAI UNIV

Hydraulic-driven cleaner and method for changing hydraulic-jet dynamics and direction

A hydrulically driven cleaner for cleaning flat field has a water pump, a directional water draining pipe, and a water flow controller between the water outlet of water pump and said directional water draining pipe and with two working positions for controlling the direction of spraying water. A method for changing the strength and direction of sprayed water flow is also disclosed.
Owner:COMPUROBOT TECH CO

Miniature spherical underwater vehicle based on water jet propulsion

The invention provides a tiny spherical underwater submergence device based on water jet propulsion, which includes a shell and a driving and adjusting device arranged in the shell; the shell is a spherical sealed shell; the components of the driving and adjusting device include a seal cabin the two ends of which are arranged in the spherical sealed shell by a fixing pole support; two water spray motors are arranged in the seal cabin; water inlet tubes and water outlet tubes of the water spray motors penetrate the seal cabin and the spherical seal shell; besides, the diameters of the water inlet tubes of the water spray motors are smaller than the diameters of the water outlet tubes; the two symmetrical side surfaces of the seal cabin are provided with circuit boards; the other tow symmetrical side surfaces of the seal cabin are provided with battery tanks; the fixing pole supports at each end of the seal cabin are provided with a motor bracket; a motor cabin is arranged on the motor bracket; a fly wheel motor is arranged in the motor cabin; a fly wheel is arranged on the shaft of the fly wheel motor. The tiny spherical underwater submergence device based on the water jet propulsion has the advantages of higher flexibility, being capable of reducing the working noise to the utmost extent, simple material, small volume and low cost.
Owner:HARBIN ENG UNIV

Novel adjusting system for stationary blades of axial flow fan

The invention provides a novel adjusting system for stationary blades of an axial flow fan. The system comprises a servo motor, a bidirectional quantitative gear pump and an oil tank, wherein the bidirectional quantitative gear pump is fixedly arranged in the oil tank and driven by the servo motor to rotate. The system further comprises two hydraulic cylinders, and adjusting oil cylinders which are correspondingly connected with the two hydraulic cylinders and used for adjusting the angles of the stationary blades; the bidirectional quantitative gear pump correspondingly communicates with the two hydraulic cylinders through two oil channels and supplies pressure oil to the two hydraulic cylinders; the hydraulic cylinders can drive the adjusting oil cylinders to adjust the angles of the stationary blades. The system provides position close-loop control and pressure close-loop control, so that the rotating speed of the servo motor and the position and pressure of a hydraulic system can be accurately controlled to meet various working requirements of the stationary blade adjusting system; the system can accurately adjust the angles of the stationary blades and has the advantages of saving energy, being environmentally friendly, and insensitive to oil pollution, and greatly reducing the capacity of a hydraulic device.
Owner:XIAN HUAKE AVIATION TECH

Inertial linear piezoelectric motor

The invention relates to an inertial linear piezoelectric motor. Comprises a bottom plate, a slider, a sliding rail, two mass blocks and a piezoelectric stack; The bottom plate is an elongated plate,one end of which is connected with a slider, and the other end of which is connected with a vertical structure part and a horizontal structure part through a flexure hinge. The vertical structure andthe horizontal structure are hollow rhombus structure with the same structure. The piezoelectric stack is arranged in the hollow rhombus structure of the vertical structure part; the piezoelectric stack is arranged in the hollow rhombus structure of the vertical structure part; The slider is fitted on the slide rail to realize linear sliding along the slide rail. When a harmonic signal of a firstorder frequency is inputted to the piezoelectric stack to produce a first order resonant mode, the whole inertial linear piezoelectric motor moves to the right, and when a harmonic signal of a secondorder frequency is inputted to the piezoelectric stack to produce a second order vibration mode, the whole inertial linear piezoelectric motor moves to the left; As that frequency of the harmonic signal apply to the piezoelectric stack is changed, different vibration mode of the motor can be generated and the movement direction of the motor can be changed.
Owner:HEFEI UNIV OF TECH

Massage chair back

The invention discloses a massage chair back which comprises a support, a machine core, a rotating lead screw and a fourth motor. Guide rail grooves are arranged on the two sides of the support. The two sides of the machine core are connected with first sliding blocks. The first sliding blocks can slide up and down along the guide rail grooves. A nut is arranged on the machine core. A thread of the nut is matched with a thread of the rotating lead screw. The upper and lower ends of the rotating lead screw are in rotating connection with the upper and lower ends of the support. One end of the rotating lead screw is connected with a belt wheel. The belt wheel is connected with the fourth motor through a belt. The machine core comprises a first motor, a second motor, a third motor, a massage arm, a first rotating shaft, a connecting device and a pushing device. The first rotating shaft is connected with the first motor. The first rotating shaft is sleeved with the massage arm through a first eccentric bearing. One end of the connecting device is connected with the second motor, and the other end of the connecting device is connected with the massage arm. The third motor is connected with the second motor through the pushing device. The pushing device pushes the second motor to move up and down. The massage chair back has the advantages that multidirectional movement can be achieved, and the massage comfort is improved.
Owner:苏州春天印象健身器材有限公司

Method and device for conveying micro-component on liquid surface based on magnetic drive microrobot

The invention relates to a method and a device for conveying a micro-component on a liquid surface based on a magnetic drive microrobot, and relates to the field of microoperation control. The invention aims to provide the microrobot with a simple structure, the device convenient to operate, and the conveying method convenient to control which are used for conveying the micro-component on the liquid surface. Three pairs of orthorhombic Helmholtz coils are utilized for producing a rotating magnetic field, so that the microrobot is controlled to operate the micro-component on the liquid surfaceto accomplish movement. By utilizing a horizontal capillary force between the microrobot and an operation object, the operation object can be captured by the robot. By applying the rotating magnetic field to drive the microrobot, the micro-component moves along with the robot. Through changing a direction of a rotary shaft of the magnetic field, a movement direction of the microrobot can be changed; and through changing a rotating frequency of the magnetic field, the traveling speed of the microrobot can be changed. Through adjusting the rotating frequency and an axis direction of the magneticfield, with the help of a magnetic field gradient, the micro-component can be separated from the microrobot.
Owner:HARBIN INST OF TECH

Unmanned aerial vehicle cluster path planning processing method based on artificial potential field and unmanned aerial vehicle

The invention, which belongs to the technical field of unmanned aerial vehicle cluster control, discloses an unmanned aerial vehicle cluster path planning processing method based on an artificial potential field, and an unmanned aerial vehicle. The method comprises the steps: carrying out conversion to obtain a position dot matrix of an unmanned aerial vehicle array according to a target shape andsequence of the unmanned aerial vehicle array, and generating a target waypoint array of a single unmanned aerial vehicle; on the basis of an artificial potential field method, calculating a repulsive force FRi of the single unmanned aerial vehicle by other unmanned aerial vehicles in the cluster and a resultant force FR of all the repulsive forces; calculating a target point gravitation FG of the single unmanned aerial vehicle; simulating flight, calculating a resultant force received by the unmanned aerial vehicle according to the gravitation FG and the repulsion FR, and adjusting an expected waypoint of the unmanned aerial vehicle in the next step according to the resultant force; and finally, forming a safe track for each unmanned aerial vehicle to finish the track planning work of the whole unmanned aerial vehicle cluster. The method is suitable for solving a path planning problem of a large-scale unmanned aerial vehicle cluster during formation flight, and the unmanned aerial vehicle cluster path planning processing method has the characteristics of easiness in implementation, high safety, high reliability and good unmanned aerial vehicle cluster control effect.
Owner:一飞智控(天津)科技有限公司

Micro-interface reaction system and method for preparing butyraldehyde through propylene carbonylation

The invention provides a micro-interface reaction system for preparing butyraldehyde through propylene carbonylation. The micro-interface reaction system comprises a solvent storage tank, a reactor and a gas-liquid separator, wherein a propylene inlet and a synthesis gas inlet are sequentially formed in the side wall of the reactor from top to bottom; a solvent inlet is formed in the bottom of the reactor and is connected with the solvent storage tank; a demister is arranged between the reactor and the gas-liquid separator; products in the reactor are demisted by the demister and then flow into the gas-liquid separator for gas-liquid separation; a first micro-interface generator and a second micro-interface generator are arranged in the reactor; and the first micro-interface generator is connected with the propylene inlet and is used for dispersing and crushing propylene into microbubbles. The micro-interface reaction system greatly reduces the reaction temperature and pressure required by propylene carbonylation, and is low in energy consumption, low in cost, high in safety, few in side reaction, high in n-butyraldehyde yield and worthy of wide popularization and application.
Owner:NANJING YANCHANG REACTION TECH RES INST CO LTD

Cylindrical brushing machine

The invention relates to the technical field of cotton seeds processing machinery, in particular to a cylindrical brushing machine. The cylindrical brushing machine is characterized in that: an outer cylinder (6) is arranged on the upper part of a frame (10); a rotary cylinder (15) is arranged in a cavity of the outer cylinder (6) and the circle centre of the rotary cylinder (15) is coincided with that of the outer cylinder (6); a steel wire brush (18) is arranged along the inner wall of the outer cylinder (6); the bristle points of the steel wire brush (18) form an inner circular working surface (14); an annular space (19) is formed between the inner circular working surface (14) and the rotary cylinder (15); scraping blades (17) with semicircular notches are arranged along the surface of the rotary cylinder (15); a feed port is formed on one side of the horizontal centre line of the outer cylinder (6), and a hair suction fan cover (7) is arranged on the other side of the horizontal centre line and opposite to the feed port; a discharge control device (11) is arranged at the rear end of the outer cylinder (6); and an automatically controlled feeder (1) is arranged above the outer cylinder (6). Compared with the prior art, the cylindrical brushing machine breaks through the technical bottleneck that the short hairs of the loose cotton seeds are difficult to clean, avoids excessive heat generated by the moving extruded cotton seeds and reduces the breakage of the cotton seeds at the same time.
Owner:张工

Mobile phone and mobile phone input method

The invention discloses a mobile phone input method, which is applied to a mobile phone provided with a roller wheel and a roller wheel key. The roller wheel and the roller wheel key are used to control a cursor in a mobile phone user interface; the roller wheel can roll along clockwise and anticlockwise directions; the roller wheel key can be pressed down or released; the method comprises the following steps of: setting the cursor to indicate a current moving direction and a current position; detecting the state of the roller wheel key and the rolling of the roller wheel; when the roller keyis proved to be in a pressed state by detection, determining the current moving direction according to the rolling of the roller wheel and controlling the cursor to indicate the current moving direction; and when the roller wheel key is in a released state, determining the current position according to the rolling of the roller wheel and controlling the cursor to indicate the current position. The invention also discloses the mobile phone. The application of the method can realize high-speed and high-reliability mobile phone input under the precondition of reducing the manufacturing cost of the mobile phone.
Owner:BYD CO LTD

A fish-like underwater vehicle with high maneuverability

The invention provides a fish-like underwater vehicle with high maneuverability, which comprises a head, a middle section shell, a back section shell, a tail, a first pectoral fin, a second pectoral fin and a head bottom shell. The head part, the middle part shell, the back part shell and the tail part are sequentially connected through the steering gear; The caudal fin is fixed on both sides of the caudal part; The head is provided with a microcontroller, a power supply and a first steering gear; The first pectoral fin and the second pectoral fin are mounted on both sides of the head and connected with the first steering gear through a connecting rod, so that the pitch angle of the first pectoral fin and the second pectoral fin can be adjusted; A first motor and a second motor are mountedon the first pectoral fin and the second pectoral fin, and the lower end of the motor is connected with the propeller. The fish-like underwater vehicle with high maneuverability improves the maneuverability and flexibility of the fish-like underwater vehicle, and improves the obstacle avoidance ability of the fish-like underwater vehicle. Rich motion forms of fish-like underwater vehicle can notonly stabilize forward, but also achieve emergency brake, float up, change the direction of motion quickly, and enhance the adaptability of fish-like underwater vehicle to complex environment.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Gravity type self-resetting pier anti-collision device structure

PendingCN111074755AReduce shockProtects against direct impact damageClimate change adaptationBridge structural detailsSteel columnsPier
The invention relates to the technical field of bridge pier collision avoidance, and especially relates to a gravity type self-resetting pier anti-collision device structure. The anti-collision devicestructure comprises a bearing platform arranged outside a pier in a sleeving mode, a main body steel shell arranged on the edge of the top of the bearing platform, an anti-collision steel block, a supporting steel column and a weight block, the outer side wall and the upper surface of the main body steel shell are provided with a groove used for allowing the anti-collision steel block to be inserted in and an opening used for allowing the supporting steel column to be inserted in respectively, and the opening communicates with the groove; the top of the inner end of the anti-collision steel block is provided with a slope inclining downwards; the top of the supporting steel column is connected with the bottom of the weight block, and the bottom of the supporting steel column is provided with a first pulley which slides in cooperation with the slope; and at least one extension spring is arranged between the weight block and the upper surface of the main body steel shell. The device structure has the advantages of being low in material price, simple in structure, convenient to construct, suitable for old bridges and new bridges, capable of being repeatedly used, easy to detect and maintain, convenient to disassemble and the like.
Owner:NANCHANG UNIV

Electromagnetic assisted laser synchronous cladding device and method for remanufacturing metal parts

The invention discloses an electromagnetic assisted laser synchronous cladding device and method for remanufacturing metal parts. The electromagnetic assisted laser synchronous cladding device comprises a six-degree-of-freedom actuator, a laser, an electromagnetic induction heater, a powder spraying device and a workbench, wherein the working table is used for containing a workpiece to be machined, and the powder spraying device is used for spraying metal powder to the surface of the workpiece to be machined; the laser is installed at the tail end of the six-degree-of-freedom actuator, and thelaser is used for generating high-energy lasers for achieving cladding of the metal powder on the surface of the workpiece arranged on the workbench; the electromagnetic induction heater comprises aninduction coil and an induction power supply for supplying power to the induction coil, and the induction coil is made of a hollow metal tube; and cooling water is fed into the hollow metal tube forcooling, and the induction coil is arranged below the laser device and used for carrying out auxiliary cladding on the metal powder on the surface of the workpiece to generate an eddy current. According to the electromagnetic assisted laser synchronous cladding device, the structure is simple, the cladding speed is high, the powder utilization rate is high, and the applicable cladding material range is wide.
Owner:WUHAN UNIV OF TECH

Electric infiltration phenomenon-based reversible micro-pump

The invention discloses an electric infiltration phenomenon-based reversible micro-pump. The electric infiltration phenomenon-based reversible micro-pump comprises an annular pump cavity and a liquidchannel formed in the annular pump cavity; mesh holes are formed between the annular pump cavity and the liquid channel; the liquid channel comprises a first pump port and a second pump port, an electric infiltration power mechanism is arranged in the annular pump cavity, and the electric infiltration power mechanism comprises an electric infiltration liquid held in the annular pump cavity, an electrode array ring nested on the side wall of the annular pump cavity, and a dielectric hydrophobic material ring nested on the outer surface of the electrode array ring; a liquid replacing structure is arranged on the annular pump cavity; and the electric infiltration liquid and the pumped liquid are mutually insoluble. The micro-pump does not have a mechanical structure, is simple in design, andcan avoid mechanical wear produced in the using process of the micro-pump, so that the service life of the micro-pump is prolonged; and in addition, the micro-pump can control the pumping direction ofa fluid, and directional flowing of the pumped solution can be realized at both micro level and macro level.
Owner:GUANGZHOU UNIVERSITY

Circulating fluidized bed boiler unit for high efficiency combustion of biomass and recovery of waste heat

InactiveCN103148479AUniform and reasonable temperature fieldNo fusion bonding occursFluidized bed combustionApparatus for fluidised bed combustionEngineeringSuperheater
The invention relates to a circulating fluidized bed boiler unit for high efficiency combustion of biomass and recovery of waste heat. The circulating fluidized bed boiler unit comprises a hearth, a tail flue and a secondary air distribution system and is characterized in that the tail flue is provided with three tandem parallel channels, i.e., a first tail flue, a second tail flue and a third tail flue , an inlet of the first tail flue is connected with a horizontal flue outlet of a cyclone separator, the outlet steers 180 DEG and is then connected with an inlet of the second tail flue, an outlet of the second tail flue steers 180 DEG and is then connected with an inlet of the third tail flue, a heating surface is arranged in the tail flue, a coarse-pitch tipping-tube medium-temperature superheater is arranged in the first tail flue, the secondary air distribution system is an air distribution structure with upper-lower and horizontally left-right staggered junction formed by air distribution units staggerly arranged at the lower part, the waist part and the central part of the front and rear walls of the hearth, and the air distribution structure enables multiple layers of secondary air jet to be mutually crosswise sprayed into the hearth in a height direction and a horizontal direction. The boiler unit provided by the invention has high combustion efficiency, discharges a small amount of CO, reduces fly ash content in flue gas and guarantees that main steam parameters accord with design requirements.
Owner:HANGZHOU BOILER GRP CO LTD

Kettle with dual-purpose of electricity and fire

InactiveCN101108067APrevent water and gas overflowPop out easilyWater-boiling vesselsElectricityWater vapor
The invention relates to a kettle available for electricity and fire, which comprises a spout, a kettle body, a kettle cover mounted with an electric heating device and a whistle. The invention is characterized in that: bottom of the kettle mouth and the kettle cover is higher than the lowest place of the spout head and the root of the highest place of the spout is higher than the water surface for ever, thus water vapor can easily burst out from the spout, which effectively prevents overflowing water and steam from the kettle mouth. The invention has the advantages of satisfying the requirement for burning water with electricity or fire with one kettle and preventing from overflowing water and steam at kettle cover safely, reliably, conveniently and durably with long service life. Only one kettle is enough for one family, thus saving the space in kitchen and cost for buying kettle, which can be resumed as the ideal appliance for burning water for modern family.
Owner:任传强

Mounting rack for mutual inductor mounting

The invention discloses a mounting rack for mutual inductor mounting. The mounting rack comprises a base, wherein one side of the upper end of the base is perpendicularly equipped with two side plates; a lifting slide slot is arranged between each side plate and the base; a lifting frame is arranged inside in the lifting slide slots; the top of the lifting frame is fixedly connected with a fixed connecting rod; a fixed pulley is fixedly connected on the fixed connecting rod; a movable pulley is fixedly connected at the lower end of the fixed pulley; the movable pulley is connected with the fixed pulley through a slide rope in a winding mode; the other end of the slide rope is equipped with a motor; the motor is arranged at the bottom end of the lifting frame; a U-shaped frame is arranged on the movable pulley; and universal wheels are arranged on the bottom of the base. According to the mounting rack disclosed by the invention, the base, the lifting frame, the fixed pulley, the movablepulley, a mutual inductor placing table and the universal wheels are arranged, so that the problems that the conventional mounting rack for the mutual inductor mounting is complex in structure, is inconvenient to use, is relatively high in cost and is not beneficial for being widely popularized are solved.
Owner:谷曾博

Fan and method for replacing filter of fan

The invention provides a fan and a method for replacing a filter of the fan. The fan comprises a body part and a nozzle. The body part comprises an air inlet, an air outlet, the detachable filter anda fan motor assembly used for generating airflow. The nozzle is connected with the air outlet and used for receiving the airflow from the body part and ejecting airflow which then enters the nozzle along with the received airflow. An air outlet of the fan motor assembly is connected with two guide airways, and the guide airways communicate with openings on the two sides of the body part respectively; an accommodating space is defined between a first side surface of the body part and a first side surface of a nozzle body, the accommodating space is provided with at least one replacing channel for the filter to enter or leave the accommodating space, and the extending direction of the replacing channel is perpendicular to a second direction; and the filter has a first stroke for entering orleaving the accommodating space from the body part in the second direction and a second stroke for entering or leaving the accommodating space from the replacing channel.
Owner:应辉

Smoke dust removal system

The invention discloses a smoke dust removal system. The smoke dust removal system is characterized by comprising an air guide pipe communicated with a pollution source, a cyclone device for holding filtrate, a first treatment chamber for holding filtrate, at least one second treatment chamber, a plurality of filtering balls and at least one liquid passing box, wherein the air inlet end of the cyclone device is communicated with the air guide pipe and is used for guiding the pollution source to rotate; the air inlet end of the first treatment chamber is connected with the cyclone device; the second treatment chamber comprises a filtering chamber for holding the filtrate and an air guide chamber used for guiding the pollution source to enter the filtering chamber; and the plurality of filtering balls are capable of moving along with the pollution source, are respectively arranged in the filtrate in the first treatment chamber, the filtering chamber and the cyclone device, and are provided with surfaces capable of attaching dust particles in the pollution source; the liquid pass box comprises a box body for holding the filtrate and an air conveying pipe, wherein the air inlet end of the air conveying pipe is connected to the second treatment chamber, and the air outlet end of the air conveying pipe is arranged below the liquid level of the box body.
Owner:黄敏方

Wedge-shaped debris flow-dividing blocking device and construction method thereof

The invention discloses a wedge-shaped debris flow-dividing blocking device and a construction method thereof. The device comprises a circular-arc-shaped blocking wall and two wing-shaped blocking walls. The circular-arc-shaped blocking wall is located at the foremost end of the whole device, and the wing-shaped blocking walls are fixed to the two sides symmetrically. Unbonded prestress systems are arranged in the circular-arc-shaped blocking wall and the wing-shaped blocking walls correspondingly. Each unbonded prestress system comprises a plurality of vertical unbonded prestress stranded steel wire devices which are composed of stranded steel wires, anchorage devices and corrugated pipes. Foundation slabs are arranged at the bottoms of the circular-arc-shaped blocking wall and the wing-shaped blocking walls correspondingly, and uplift pile foundations are additionally arranged under the foundation slabs provided with the unbonded prestress systems correspondingly. According to the device and method thereof, the unbonded prestress systems are arranged in the large stress areas, a good energy consumption effect is achieved, and dynamic response of the whole device is reduced. Whenthe device is impacted by debris, the flowing direction of the debris can be changed while the stability of the device is guaranteed, the impact energy is dissipated, and the safety of significant buildings or structures behind the device is guaranteed.
Owner:ZHEJIANG UNIV
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