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52results about How to "Reduce the energy conversion link" patented technology
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Air conditioning system for hybrid electric vehicle and control method thereof
ActiveCN102328566AIncrease temperatureImprove driving experienceHybrid vehiclesAir-treating devicesEngineeringElectric vehicle
The invention relates to an air conditioning system for a hybrid electric vehicle and a control method thereof and can solve the problem that the temperature in a vehicle cannot be improved in advance in the prior art. According to the key points of the technical scheme, the air conditioning system for a hybrid electric vehicle comprises a direct current regulated power supply, a vehicle air conditioner, an vehicle engine, as well as hybrid storage battery, an air conditioner controller and a controllable selective switch, wherein the mechanical driving front end of a compressor is driven by the vehicle engine through mechanical linkage, the output end of the hybrid storage battery is connected with the controllable selective switch electrically, the control end of the controllable selective switch is connected with the direct current regulated power supply respectively through controllable switches TL1 and TL2, the first output end of the controllable selective switch is electricallyconnected with an electric drive end, the second output end of the controllable selective switch is connected with an electromagnetic clutch through a controllable switch TL3, the control ends of thecontrollable switches TL1, TL2 and TL3 are all connected with the air conditioner controller electrically. The air conditioning system can be used for adjusting the operation state of an air conditioner according to the use conditions of different vehicles.
Owner:ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
Hydraulic driving system for offshore drilling compensation winch
ActiveCN105804675AReduce loadReduce extra spaceDrilling rodsServometer circuitsEngineeringEnergy recovery
The invention discloses a hydraulic driving system for an offshore drilling compensation winch.A hydraulic secondary regulation element and a driven hydraulic cylinder jointly drive the winch to fulfill a heave compensation function, and a bit feeding hydraulic motor drives the winch to fulfill an automatic bit feeding function.During compensation, the driven hydraulic cylinder and a liquid-gas energy storage device thereof are used or bearing all static loads of a drilling rig and periodically recovering and releasing gravitational potential energy of loads; the hydraulic secondary regulation element operates in a constant-pressure network to overcome other loads in the compensation process, and the liquid-gas energy storage device periodically recovers and releases inertia kinetic energy of the a winch rotary system.During bit feeding, the driven hydraulic cylinder and the liquid-gas energy storage device thereof recover the gravitational potential energy of the loads of the drilling rig and release in lifting of a drilling rig traveling system.The hydraulic driving system is integrally compact in structure, a hydraulic energy recovery system is high in operation efficiency and long in service life, and an engine is low in power and power consumption.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Battery energy storage system based on modular multilevel AC-AC (Alternating Current-Alternating Current) converter topology
ActiveCN103236706AReduce weightLow costFlexible AC transmissionAc network load balancingPower gridThree-phase
The invention relates to a battery energy storage system based on a modular multilevel AC-AC (Alternating Current-Alternating Current) converter topology. The battery energy storage system comprises a modular multilevel three-phase AC / single-phase AC converter (1), a single-phase high-frequency insulating transformer (2), a single-phase rectifier (3) and an energy storage battery pack (4), wherein the three-phase input side of the modular multilevel three-phase AC / single-phase AC converter (1) is connected with a power grid, the single-phase AC output end of the modular multilevel three-phase AC / single-phase AC converter (1) is connected with the primary side of the single-phase high-frequency insulating transformer (2), the secondary side of the single-phase high-frequency insulating transformer (2) is connected with the single-phase rectifier (3), and the DC (Direct Current) side of the single-phase rectifier (3) is connected with the energy storage battery pack (4).
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Electro-hydraulic system for recycling and releasing potential energy of engineering machinery
ActiveCN102889273AReduce energy conversion linksImprove efficiencyFluid-pressure actuator componentsElectro hydraulicPotential energy
The invention discloses an electro-hydraulic system for recycling and releasing the potential energy of an engineering machinery. The electro-hydraulic system comprises a control system, a power source, a performing mechanism, a switching mechanism and an energy recycling releasing mechanism, wherein the control system comprises a controller, a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor; the power source comprises an engine, a main variable pump and an oil tank; the performing mechanism comprises a lifting hydraulic cylinder; the switching mechanism comprises a multiway valve and a pilot control handle; and the energy recycling releasing mechanism comprises an energy accumulator, a first liquid control two-position three-way valve, an electromagnetic two-position three-way valve and a variable pump-motor. With the adoption of the electro-hydraulic system for recycling and releasing the potential energy of the engineering machinery, when the working condition of the engineering machinery is down, a lot of gravitational potential energies can be recycled and is used for driving the main pump, so that the consumption power of the engine is lowered, the energy waste is reduced, and the work efficiency of the engineering machinery is improved.
Owner:ZHEJIANG UNIV
Excavator rotation brake energy recovery system
InactiveCN103628519AReduce the energy conversion linkRealize self transformationSoil-shifting machines/dredgersTransfer caseEnergy conversion efficiency
The invention discloses an excavator rotation brake energy recovery system which comprises an engine, a variable pump, a transfer case, electromagnetic reversing valves, hydraulic control one-way valves, hydraulic control reversing valves, an energy accumulator, a rotary motor, a variable motor and a controller. Mechanical energy during excavator rotation braking is kinetic energy before excavator braking. According to the excavator rotation brake energy recovery system, the energy when the rotary motor is braked can be recovered, pressure oil is pressurized through a pressurizing valve to enable the recovered energy to be stored in the energy accumulator in a hydraulic energy mode, and when the energy is released, the hydraulic oil in the energy accumulator drives the variable motor and the engine after power distribution of the transfer case to drive a main pump to act on a work load. A hydraulic adjuster is composed of the pressurizing valve, the energy accumulator, the hydraulic control one-way valves and the variable motor, conversion links during energy recovery are reduced, the energy recovery efficiency is improved, the engine works in the high-efficiency area all the time, and oil consumption is reduced.
Owner:NANJING UNIV OF TECH +1
Heavy load moving arm potential energy recovery system for large hydraulic excavator and control method thereof
ActiveCN110499794AReduce volumeReduce entryServomotor componentsMechanical machines/dredgersHigh pressureHeavy load
The invention provides a heavy load moving arm potential energy recovery system and method for a large hydraulic excavator. The system is applicable to mining machines. On the basis of an original moving arm hydraulic system, a variable displacement motor, an energy accumulator and a control valve set are arranged, the control valve set is connected with a rod cavity and a rodless cavity of a moving arm oil cylinder, and a control valve and a main valve are connected in parallel. The variable displacement motor, the control valve set and the energy accumulator are sequentially connected. High-pressure oil liquid of the rodless cavity of the moving arm oil cylinder is divided into three ways through the control valve set and enters the rod cavity of the moving arm oil cylinder, the energy accumulator and the variable displacement motor. The variable displacement motor is connected with an engine to form hybrid power to drive a main pump together. The system has the advantages of flow regeneration and hybrid power, the structure is simple, the energy conversion link is less, the energy utilization rate is high, the size of the energy accumulator is small, the auxiliary drive torque is large, the pump / motor power level is low, the occupied space of the system is small, control is flexible, and the system can adapt to the complex working condition.
Owner:CHINA UNIV OF MINING & TECH
Solar driven coaxial traveling wave starting and standing wave cooling device
The invention relates to a solar-driven coaxial traveling wave starting and standing wave refrigerating device, which comprises a traveling wave thermoacoustic engine and a standing wave thermoacoustic refrigerating machine with coaxial structures, and also comprises a resonatron which is connected between the traveling wave thermoacoustic engine and the standing wave thermoacoustic refrigerating machine, a solar light-accumulating device and a solar light-transmitting device which are arranged in front of the traveling wave thermoacoustic engine, a resonant cavity which is arranged on the rear of the standing wave thermoacoustic refrigerating machine, and a fused salt annular box which is coated on the outside of a heat exchanger on the hot end of the traveling wave thermoacoustic engine. Due to organic axial arrangement of the traveling wave thermoacoustic engine and the standing wave thermoacoustic refrigerating machine, the solar-driven coaxial traveling wave starting and standing wave refrigerating device has the advantages of compact structure and high efficiency; fused salt which is coated on the outside of the heat exchanger on the hot end of the engine is an ideal thermal capacitance, thereby having the advantage of constant heating temperature; and a light-transmitting enclosed body on the front end of the engine uses quartz glass, thereby having the advantages of high-efficiency transmittance and prevention of low-temperature internal infrared radiation from passing through.
Owner:XI AN JIAOTONG UNIV
Solar energy storage system with coupled photo(electro)chemical cell and fuel cell
InactiveCN102376999ANot easy to corrodeImprove stabilityElectrochemical generatorsSustainable buildingsElectricityFuel cells
The invention discloses a solar energy storage system with coupled photo(electro)chemical cell and fuel cell. The invention provides a novel-concept solar energy storage system with coupled photo(electro)chemical cell and fuel cell. The solar energy storage system comprises a photoelectrochemical cell or a photochemical cell, a hydrogen storage system, an oxygen storage system, and a hydrogen-oxygen fuel cell which are connected by using pipelines. A hydrogen inlet of the hydrogen storage system is connected to a hydrogen outlet of the photoelectrochemical cell or the photochemical cell through a pipeline. An oxygen inlet of the oxygen storage system is connected to an oxygen outlet of the photoelectrochemical cell or the photochemical cell through a pipeline. Gas outlets of the hydrogen storage system and the oxygen storage system are respectively connected to a hydrogen inlet and an oxygen inlet of the hydrogen-oxygen fuel cell through pipelines. A hydrogen outlet and an oxygen outlet of the hydrogen-oxygen fuel cell are respectively connected to a gas-liquid separator. Water vapor are cooled and connected by the gas-liquid separator, and the hydrogen outlet and the oxygen outlet of the hydrogen-oxygen fuel cell are emptied. A water outlet of the gas-liquid separator is connected to a water inlet of the photoelectrochemical cell or the photochemical cell through a pipeline.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Electric accessory integration control system for pure electric passenger vehicle
ActiveCN105034852AOverall small sizeLow costSpeed controllerFluid steeringControl systemElectric machinery
The invention discloses an electric accessory integration control system for a pure electric passenger vehicle. The electric accessory integration control system comprises a birotor motor, an electric accessory system, a power supplying system and a control system, wherein the birotor motor is respectively electrically connected with the electric accessory, the power supplying system and the control system. With the above method, a steering power-assisting oil pump, a blast pump and a compressor can be integrated by the use of the electric accessory integration control system, so the three accessories can share the same power source; the electric accessory integration control system size and weight can be obviously reduced, so a series of power driving components and corresponding control components can be reduced; cost of the electric accessory integral control system can be reduced and energy conversion between the driving component and the electric accessory can be reduced; energy conversion efficiency of the electric accessory integral control system can be improved; and the electric accessory integration control system for the pure electric passenger vehicle has wide market prospect and can be widely popularized.
Owner:SUZHOU LANSHEN ELECTRONICS CO LTD
Electro-hydraulic energy recovery and release system for slewing brake of engineering machinery
ActiveCN103697023AReduce energy conversion linksImprove efficiencyFluid-pressure actuator componentsElectro hydraulicAutomotive engineering
The invention discloses an electro-hydraulic energy recovery and release system for slewing brake of engineering machinery. The electro-hydraulic energy recovery and release system comprises an energy recovery and release mechanism and a control unit. The control unit comprises a controller and a first pressure sensor. The energy recovery and release mechanism comprises a hydraulic energy storage unit, an electromagnetic reserving valve, a hydraulic motor, a sequence valve, a first check valve and a second check valve. Kinetic energy generated during slewing brake of the engineering machinery can be stored by the hydraulic energy storage unit, the controller controls the electromagnetic reversing valve to release the energy stored in the hydraulic energy storage unit according to the load of a main variable pump so as to drive the hydraulic motor to provide a torque to the main variable pump, and thus fuel oil consumption of an engine is reduced and work efficiency of the engineering machinery is improved.
Owner:ZHEJIANG DETAI ELECTROMECHANICAL ENG
Solar thermoelectric generation device based on Fresnel lens and heat pipe principle
InactiveCN103560706AAvoid contaminationReduce noiseCondensersGenerators/motorsFresnel lensGlass cover
The invention provides a solar thermoelectric generation device based on a Fresnel lens and a heat pipe principle, and belongs to the field of solar thermal power generation engineering. The device mainly comprises the point focusing type Fresnel lens, a transparent glass cover plate, a cylindrical cavity type heat absorber inner wall, a cylindrical cavity type heat absorber outer wall, annular thermoelectric generation modules, flat plate type thermoelectric generation modules, annular fins and uniform-section straight fins. Compared with other solar thermoelectric generation devices, the solar thermoelectric generation device based on the Fresnel lens and the heat pipe principle can achieve uniform heating of walls of heating ends of the thermoelectric generation modules, has the advantages of being compact in structure, few in operation parts, low in noise, reliable to operate, low in maintenance cost, convenient to adjust and good in performance, and can be used as a distribution type energy source.
Owner:CHONGQING UNIV
Double-compressor hybrid-power combustion-gas thermal pump air-conditioning system
InactiveCN1865815AReduce conversion linksImprove utilization efficiencyCompressorEfficient regulation technologiesFour-way valveVapor–liquid separator
The invention relates to a dual-compressor mixed power fuel gas heat pump air conditioner, with multifunction, energy-saving and environment-friend properties. Wherein, the system engine (1) is connected to the open compressor (2) via axle or belt; the exhaust tube of open compressor (2) is combined with the exhaust tube of direct-current variable-frequency compressor (9) to connect the oil separator (3); the sucker of open compressor is combine with the sucker of direct-current variable-frequency compressor (9) to connect gas-liquid separator (8); the output of oil separator (3) is connected to the inlet A tube of four-way valve (4); the first output C tube of four-way valve (4) is connected to the gas-liquid separator (8); the second output B tube is connected to the indoor heat exchanger (7); another end of indoor heat exchanger (7) is connected to the throttle device (6); another end of throttle device is connected to the outdoor heat exchanger (5); another end of outdoor heat exchanger is connected to the third output D of four-way valve.
Owner:SOUTHEAST UNIV
Hydrolic mechanism free electric motor servo system water turbine speed regulator
InactiveCN1502806AEasy to passRapid responseHydro energy generationMachines/enginesPower stationThermal power station
The present invention relates to a motor servosystem hydroturbine governor without hydraulic mechanism. It is mainly formed from electric controller, electric servodriver, guide blade driving motor and mechanical driving mechanism. Said invention is characterized by that on the above-mentioned single-regulated motor servosystem hydroturbine governor without hydraulic mechanism a double-regulated motor servosystem hydroturbine governor without hydraulic mechanism which is formed from carbon brush group, slide ring group, blade driving motor and mechanical driving mechanism is added. Said invention is simple in structure, high in reliability and small in volume, and can use DC power supply of hydraulic power station as stand-by cenergy source.
Owner:谢森生
Energy recovery and utilization system for movable arm potential energy
ActiveCN104358749AEfficient use ofSimple structureServomotor componentsMechanical machines/dredgersHydraulic motorEnergy recovery
The invention provides an energy recovery and utilization system for movable arm potential energy. The oil outlet of a movable arm locking valve (1), the rodless cavity oil opening of a movable arm oil cylinder (13) and the oil inlet of a second hydraulic-control reversing valve (3) are communicated with one another; the controlling oil opening of the movable arm locking valve (1) is connected with the oil outlet of a first hydraulic-control reversing valve (2); the controlling oil opening the first hydraulic-control reversing valve (2) is connected with the oil inlet of the first hydraulic-control reversing valve (2) and the controlling oil opening of the second hydraulic-control reversing valve (3); the second hydraulic-control reversing valve (3) is connected with a first one-way valve (4); the first one-way valve (4), an energy accumulator (7), a second one-way valve (8) and a hydraulic motor (10) are communicated mutually; the oil outlet of the hydraulic motor (10) is connected with an oil tank; the controlling oil opening of the second hydraulic-control reversing valve (3) is connected with a movable arm handle (14). The energy recovery and utilization system can control recovery action according to the action of the movable arm oil cylinder, is simple in structure, low in manufacturing cost, and relatively high in portability.
Owner:XCMG EXCAVATOR MACHINERY
Lifting self-discharging mechanism used for full electric vehicle
InactiveCN104442507AIncrease mileageImprove transmission efficiencyVehicle with tipping movementVehicle frameGear wheel
The invention discloses a lifting self-discharging mechanism used for a full electric vehicle. The lifting self-discharging mechanism used for the full electric vehicle is simple in structure, high in efficiency, safe, reliable and suitable for the full electric vehicle. The lifting self-discharging mechanism used for the full electric vehicle comprises a vehicle frame, a cross beam, a motor, a mechanical driving box, a straight spur gear, a sector gear, a compartment, guide rail grooves, sliding blocks and tie bars, wherein the motor and the mechanical driving box are both fixedly installed on the cross beam at the rear of the vehicle frame, the output shaft of the motor is connected to an input shaft of the mechanical driving box, the straight spur gear is installed at one end of an output shaft of the mechanical driving box, and the sector gear is fixedly installed at the rear of a base plate of the compartment. A motive power source of the electric vehicle serves as a power source of a lifting mechanism, after the circuit is turned on, electric energy is converted into mechanical energy through the motor and is transmitted to the mechanical driving box, then the sector gear drives the compartment to rotate clockwise or anti-clockwise, and therefore lifting and reset of the compartment are achieved. The lifting self-discharging mechanism used for the full electric vehicle is easy to implement, enables a lifting process to be stable, can improve the reliability of the entire lifting process and lowers cost.
Owner:WUHAN UNIV OF TECH
Self-locking clamping device based on thermally induced linear expansion
The invention discloses a self-locking clamping device based on thermally induced linear expansion. The self-locking clamping device comprises a micro-drive device and a travel amplifying device, the micro-drive device is provided with a thermosensitive drive component made of temperature sensitive materials, and a hear source is provided by a rapid semiconductor refrigerating / heating technology. The differential travel amplifying device with internal backflow area is used for amplifying travel, and the size of an output piston is not limited while amplification coefficient is ensured. When in operation, the self-locking clamping device is set in an original refrigerating state, the piston is driven to move by the elongation of the thermosensitive drive component in the room temperature recovery process, a workpiece is clamped, and long-term clamping is kept by temperature potential energy accumulated in the room temperature state. The self-locking clamping device is compact and simple in structure, pollution-free, green, environment-friendly, simple in operating mode, low in energy consumption and high in energy utilization rate, only two times of one-way refrigeration are needed in one operating process of clamping and loosening, and clamping is kept by the temperature potential energy without continuously supplying energy.
Owner:KUNSHAN JER ELECTRONICS TECH
Wind-driven magnetic suspension vertical shaft seawater desalination system and control method thereof
ActiveCN110067700AImprove suspension stabilityReduce the effect of overturning momentWind motor controlGeneral water supply conservationWind drivenHigh pressure water
The invention discloses a wind-driven magnetic suspension vertical shaft seawater desalination system and a control method thereof. A vertical shaft wind turbine is adopted to directly drive a high-pressure water pump, current regulation and control of a suspension winding of a disc-type motor are combined, and a fan is suspended based on a four-point suspension control method; according to requirements of fresh water, wind energy capture power and high-pressure pump rated power, an algorithm is determined by adopting a pump diaphragm, and the high-pressure water pump and a reverse osmosis membrane component are switched; on the basis of a rotor flux linkage orientation strategy and electromagnetic torque regulation and control of the disc-type motor, coarse and fine regulation of wind energy capture and power control are achieved; a multi-layer fan blade trapezoid structure is adopted, the suspension winding and an iron core are moved downwards to the bottom end of a fan rotating body, and thus, the fan rotating body is more stable in suspension; and by adopting hybrid energy storage of a storage battery and a high-pressure tank, multi-working modes of seawater desalination such as suspension electric drive, suspension capture, and damping rated rotating speed are achieved, and wind energy utilization, seawater desalination efficiency and diaphragm desalination service life are synergistically improved. The effective implementation of the system and the method can greatly promote offshore wind power and the seawater desalination to be practical.
Owner:QUFU NORMAL UNIV
Parallel torque coupling type energy-saving workover rig
The invention discloses a parallel torque coupling type energy-saving workover rig. The parallel torque coupling type energy-saving workover rig comprises a small power machine, a large power machine, a first torque coupler, a second torque coupler, a third torque coupler, a hydraulic accumulator, a small quantitative hydraulic pump / motor, a large quantitative hydraulic pump / motor, a gearbox, a roller and the other parts, wherein the small power machine is connected with a shaft of the small quantitative hydraulic pump / motor through the first torque coupler; the large power machine is connected with a shaft of the large quantitative hydraulic pump / motor through the second torque coupler; the shafts of the small quantitative hydraulic pump / motor and the large quantitative hydraulic pump / motor are respectively connected with a chain wheel of the third torque coupler through clutches. Compared to the commonly used conventional workover jig, the power of the power machine can be reduced to 1 / 4 of the conventional workover jig, and further the gravitational potential energy released when the tubular column is put down can be recovered. The roller, the derrick, the gearbox and the other parts of the conventional workover jig are remained, and only the quantitative hydraulic pumps / motors, hydraulic accumulator and the other parts are added on the conventional workover jig, so that the cost is low.
Owner:YANTAI UNIV
Offshore wind pneumatic suspension vertical axis sea water desalination system
ActiveCN109973311AReduce overturning momentLow start wind speedWind motor controlGeneral water supply conservationWater desalinationConstant power
The invention discloses an offshore wind pneumatic suspension vertical axis sea water desalination system. The offshore wind pneumatic suspension vertical axis sea water desalination system comprisesa vertical axis wind turbine, a compression air energy storage device, an air flotation damping device and a sea water desalination device. The vertical axis wind turbine adopts multiple layers of paddles for restraining capsizing moment, under the air flotation state of a fan rotating body, the wind energy is efficiently captured, the air flotation damping device regulates the friction damping between the fan rotating body and a tower under the high-pressure gas effect, constant-power control of the rated wind speed of the fan is ensured, according to the captured power, fresh water needs, compression power and high-pressure pump power, a high-pressure pump, a compressor and a reverse osmosis membrance assembly are switched, under the coordinated control of electromagnetic torque of a permanent magnet generator, the high-pressure pump and the compressor, in combination with mixed energy storage of the compressed gas, a high-pressure water tank and a storage battery, fluctuation wind energy is stabilized, wind energy efficient use and sea water desalination efficiency improving are achieved, and through the effective implementation of the system, true functionization of sea wind power and sea water desalination can be greatly promoted.
Owner:QUFU NORMAL UNIV
Graded energy utilization system used in cement production
ActiveCN102690071AReduce the energy conversion linkAvoid efficiency lossClinker productionSteam engine plantsProcess engineeringElectric power
The invention discloses a graded energy utilization system used in cement production. The defects in the common cement production, such as high power consumption, low energy utilization efficiency and high manufacturing cost, are overcome by adopting the multi-stage energy utilization method; and further, waste heat utilization is integrated with energy utilization on the whole, so that the entire energy utilization efficiency is greatly improved.
Owner:陕西大唐新能电力设计股份有限公司
Hybrid power forklift transmission system
ActiveCN105502230AIngenious structureEasy assembly and maintenanceLifting devicesGear wheelEngineering
The invention provides a hybrid power forklift transmission system which comprises an adjusting box, a first gear, a second gear, a third gear, a driving motor, an output shaft, a hydraulic motor, an electromagnet, a control device and a sensor. The hydraulic motor comprises a motor shaft, a shaft head, a magnetic column, at least one steel ball and a fixing bolt. A sliding groove is formed in the shaft head. An annular groove is formed in the side, away from the motor shaft, of the magnetic column, and the side wall on the side, close to the motor shaft, of the annular groove is gradually away from the axis of the magnetic column in the direction close to the motor shaft, at least one clamping through hole and at least one sliding rail are further arranged on the shaft head, a ball lifting protrusion is arranged in the shaft head, and a plurality of clamping grooves are formed in the third gear. The sensor appliance is used for detecting gravity signals of goods on a fork. The hybrid power forklift transmission system is simple in mechanism, ingenious in structure, convenient to assemble and maintain and suitable for forklifts and other industrial vehicles, the energy consumption of the forklifts is reduced, an energy conversion link is omitted, and system efficiency can be improved.
Owner:ANHUI AGRICULTURAL UNIVERSITY
Electric vehicle emergency charging system and charging car
ActiveCN111976517BReduce thermal management costsLow costCharging stationsElectric vehicle charging technologyPower batteryBattery charge
Owner:JIANGLING MOTORS
Hydraulic Drive System of Compensation Drawworks in Offshore Drilling
ActiveCN105804675BReduce loadReduce extra spaceDrilling rodsServometer circuitsEnergy recoveryGravitational potential
The invention discloses a hydraulic drive system of a compensating winch for offshore drilling. The drawworks is jointly driven by a hydraulic secondary adjustment element and a passive hydraulic cylinder to complete the heave compensation function, and the drawworks is driven by a drilling hydraulic motor to complete the automatic drilling function. During the compensation process, the passive hydraulic cylinder and its hydro-pneumatic energy storage device are used to bear all the static loads of the drilling rig, and the gravitational potential energy of the load is periodically recovered and released; the hydraulic secondary adjustment element works in a constant pressure network to overcome the compensation process The rest of the load, and use the liquid-pneumatic energy storage device to periodically recover and release the inertial kinetic energy of the drawworks slewing system. During the drilling movement, the drilling rig load gravity potential energy is recovered by using the drilling hydraulic motor and its hydraulic-pneumatic energy storage device, and then released when the drilling rig swimming system is lifted. The present invention has compact overall structure, high working efficiency and long service life of the hydraulic energy recovery system, and low engine power and energy consumption.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Offshore wind pneumatic suspension vertical shaft seawater desalination system and control method thereof
ActiveCN110067701AReduce overturning momentLow start wind speedWind motor controlGeneral water supply conservationEngineeringHigh pressure water
The invention discloses an offshore wind pneumatic suspension vertical shaft seawater desalination system and a control method thereof. The offshore wind pneumatic suspension vertical shaft seawater desalination system comprises vertical shaft wind turbines, compressed air energy storing devices, air flotation damping devices and a seawater desalination device. Frictional damping of draught fans and tower frames are regulated by adopting a four-point pneumatic suspension mode, a high-pressure pump, compressors and a reverse osmosis membrane assembly are switched according to the capturing power, the fresh water requirement, the compression power and the high-pressure pump power, and the compressed air energy storing devices and high-pressure seawater storing devices are roughly and finelyregulated on the basis of rotor magnetic chain orienteering and permanent magnet generator electromagnetic torque regulating; and a mixed energy storing mode of compressed air, a high-pressure water tank and a storage battery is adopted, therefore, seawater desalination in multiple working modes such as draught fan pneumatic suspension, air floatation capturing, air floatation water storing and gas storing and damping regulating is achieved, and the wind energy utilization efficiency, the seawater desalination efficiency and the membrane desalination life are cooperatively improved. Through effective implementation of the offshore wind pneumatic suspension vertical shaft seawater desalination system and the control method thereof, real practicability of offshore wind power and seawater desalination can be greatly promoted.
Owner:QUFU NORMAL UNIV
A self-locking clamping device based on thermally induced linear expansion
Owner:KUNSHAN JER ELECTRONICS TECH
Energy-saving mechanical hydraulic energy storage equipment and method
ActiveCN110541851AReduce the energy conversion linkReduce power consumptionBarrages/weirsFluid-pressure actuator componentsElectric machineryBall valve
Owner:魏其山
Solar driven coaxial traveling wave starting and standing wave cooling device
InactiveCN101392971BEasy accessLow priceSolar heat devicesMachines/enginesResonant cavitySolar light
The invention relates to a solar-driven coaxial traveling wave starting and standing wave refrigerating device, which comprises a traveling wave thermoacoustic engine and a standing wave thermoacoustic refrigerating machine with coaxial structures, and also comprises a resonatron which is connected between the traveling wave thermoacoustic engine and the standing wave thermoacoustic refrigeratingmachine, a solar light-accumulating device and a solar light-transmitting device which are arranged in front of the traveling wave thermoacoustic engine, a resonant cavity which is arranged on the rear of the standing wave thermoacoustic refrigerating machine, and a fused salt annular box which is coated on the outside of a heat exchanger on the hot end of the traveling wave thermoacoustic engine. Due to organic axial arrangement of the traveling wave thermoacoustic engine and the standing wave thermoacoustic refrigerating machine, the solar-driven coaxial traveling wave starting and standingwave refrigerating device has the advantages of compact structure and high efficiency; fused salt which is coated on the outside of the heat exchanger on the hot end of the engine is an ideal thermalcapacitance, thereby having the advantage of constant heating temperature; and a light-transmitting enclosed body on the front end of the engine uses quartz glass, thereby having the advantages of high-efficiency transmittance and prevention of low-temperature internal infrared radiation from passing through.
Owner:XI AN JIAOTONG UNIV
Seawater desalination system and control method for vertical axis seawater desalination system with offshore wind aerodynamic suspension
ActiveCN110067701BReduce overturning momentLow start wind speedWind motor controlGeneral water supply conservationHigh pressure waterEnvironmental engineering
The invention discloses an offshore wind pneumatic suspension vertical shaft seawater desalination system and a control method thereof. The offshore wind pneumatic suspension vertical shaft seawater desalination system comprises vertical shaft wind turbines, compressed air energy storing devices, air flotation damping devices and a seawater desalination device. Frictional damping of draught fans and tower frames are regulated by adopting a four-point pneumatic suspension mode, a high-pressure pump, compressors and a reverse osmosis membrane assembly are switched according to the capturing power, the fresh water requirement, the compression power and the high-pressure pump power, and the compressed air energy storing devices and high-pressure seawater storing devices are roughly and finelyregulated on the basis of rotor magnetic chain orienteering and permanent magnet generator electromagnetic torque regulating; and a mixed energy storing mode of compressed air, a high-pressure water tank and a storage battery is adopted, therefore, seawater desalination in multiple working modes such as draught fan pneumatic suspension, air floatation capturing, air floatation water storing and gas storing and damping regulating is achieved, and the wind energy utilization efficiency, the seawater desalination efficiency and the membrane desalination life are cooperatively improved. Through effective implementation of the offshore wind pneumatic suspension vertical shaft seawater desalination system and the control method thereof, real practicability of offshore wind power and seawater desalination can be greatly promoted.
Owner:QUFU NORMAL UNIV
Electro-hydraulic system for energy recovery and release of slewing brake of construction machinery
ActiveCN103697023BImprove conversion efficiencyReduce the energy conversion linkFluid-pressure actuator componentsFuel oilEnergy recovery
Owner:ZHEJIANG DETAI ELECTROMECHANICAL ENG
Mechanically coupled magnetic levitation fan yaw system
ActiveCN103883469BAchieving Radial OffsetReduce Yaw Power ConsumptionWind motor controlWind motor combinationsNacelleGear wheel
Owner:QUFU NORMAL UNIV +1
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