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102results about How to "Solve the power supply" patented technology

Floating breakwater doubling as wave power generation device

The invention relates to the technical field of breakwater engineering and wave power generation, in particular to a floating breakwater generation device arranged in open sea. The floating breakwater generation device comprises floating members, air turbine generator sets, air chambers, airflow passages, mooring systems and signal transmission devices, and is characterized in that the floating members are respectively connected with concrete anchor blocks at the sea bottom through anchor chains; a plurality of wave dissipating perforations penetrating through a floating body are formed in the head-sea face of each floating member; the air turbine generator sets are respectively arranged in the airflow passages; the floating bodies are driven by waves to vertically move, so that water in the air chambers vibrates and air in the air chambers is pushed to move, and the air turbine generator sets are further driven to generate electricity. The floating breakwater generation device disclosed by the invention has the characteristics of being stable in structure, low in erection cost, high in generation conversion efficiency, convenient to maintain, and the like, and can be applied to sea areas with deep water, high waves and complex terrain; while wave impacts are weakened and a steady water area environment is provided for surrounding water areas, the waves can be converted into electric energy, and the electric power supply problem of harbor district or island residents is effectively solved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Monitoring device and monitoring method for current capacity of maritime platform cable

The invention discloses a monitoring device and a monitoring method for the current capacity of a maritime platform cable. The monitoring device comprises a power distribution cabinet, an optical-fiber grating demodulation monitoring system, a current acquisition device, transmission and relay equipment and a temperature sensor, wherein the current acquisition device is connected with the power distribution cabinet to be used for transmitting the current which is collected by the current acquisition device into the transmission and relay equipment, and an electrical signal is converted into a light signal through the transmission and relay equipment; the temperature sensor is laid on the surface of a cable, and tail fibers of the temperature sensor are gathered into an optical fiber distribution box to be connected into the optical-fiber grating demodulation monitoring system by the optical fiber distribution box through an optical cable. The monitoring method adopts the following steps of 1, collecting real-time current; 2, collecting real-time temperature; 3, carrying out calculation on the temperature and the current capacity of a conductive wire core; 4, carrying out judgment on monitoring data. According to the monitoring device and the monitoring method, dispatch and adjustment on the load of the cable can be carried out, safety in operation of the cable is guaranteed, the problem of power supply in an emergency status is solved, and reasonable utilization of the cable is realized.
Owner:CHINA NAT OFFSHORE OIL CORP +1

High-voltage power line carrier signal communication coupling method and device

The invention relates to a high-voltage power line carrier signal communication coupling method and a device. The device comprises two groups of semi-annular transformers, wherein one group is current transformers, and the other group is carrier transformers; each group is divided into an upper half part and a lower half part which are respectively arranged in the upper casing and the lower casing of a high-voltage transmission line; and two semi-annular transformers in the upper casing are respectively wound by coils which are connected with a circuit board arranged at the upper side. When the upper casing provided with the two semi-annular transformers is combined with the lower casing provided with two semi-annular transformers to clamp on the high-voltage power line, the transformers are respectively form complete current transformers and carrier transformers; the high-voltage line penetrates through the center of a magnetic circuit to generate electric current which is used for supplying power for equipment after being converted; and the carrier transformers are used for coupling carrier signals to the high-voltage power line or inducing carrier signals from the high-voltage power line, and the carrier signals are transmitted to ground equipment in a wireless mode. The invention solves the problem of difficult insulation and isolation between the ground equipment and the high-voltage power line, realizes remote meter-reading at low voltage, and saves cost.
Owner:昆明天龙经纬电子科技有限公司

Power generation backpack based on piezoelectric effect

The invention relates to a power generation backpack, in particular to a power generation backpack based on the piezoelectric effect. The power generation backpack based on the piezoelectric effect comprises an energy conversion module installed in the backpack, a power conversion module connected with the energy conversion module and an energy storage module connected with the output end of the power conversion module; the energy conversion module is used for converting mechanical energy generated in the human motion process into vibration energy of weights in the backpack and then converting the vibration energy of the weights into power energy, the power conversion module is used for converting and regulating the power energy collected by the energy conversion module, and the energy storage module is used for storing the converted and regulated power energy; the output end of the power conversion module is also connected with electric equipment which is connected with the energy storage module in parallel. According to the power generation backpack based on the piezoelectric effect, the mechanical energy generated in the human motion process can be converted into the power energy, and the power supply problem when an electric network is far away outdoors is solved, so that people can do outdoor sports more conveniently; meanwhile, the walking step number of people in the outdoor sports can be also calculated, and the sport interestingness can be increased.
Owner:XI AN JIAOTONG UNIV

Downhole intelligent controlling type expansion packer

The invention discloses a downhole intelligent controlling type expansion packer. The downhole intelligent controlling type expansion packer comprises an upper joint and a lower joint; an intelligent controlling plate (15) is fixedly connected to the upper joint; an inner cavity pressure gauge (47), a sealing pressure gauge (54) and an in-pipe pressure gauge (55) which are connected with the intelligent controlling plate (15) are arranged on one side of a sealing main body (33); an electric switch is arranged in the sealing main body (33) and controls liquid inlet and liquid outlet of an inner cavity of a rubber barrel, steel pipe cables penetrate through a packer body, and locking and sealing mechanisms are arranged on the two extended ends of the steel pipe cables. According to the downhole intelligent controlling type expansion packer, the self power supply and data transmission problems are solved by utilizing the penetrating cables, a ground controlling system can control the packer to be set and unset and collect and upload data of the inner cavity, stratum and in-pipe pressure in time, the examining seal procedure of the packer is simplified, the accuracy of other downhole parameter admission is improved, fluid migration preventing pressure difference between layers during stopping injection is raised to over 15MPa, interlayer interference in an oil producing well is solved, and occurrence of downhole accidents is reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1

Point type high-voltage transmission line optical fiber detection network

The invention discloses a quasi-distributed high-voltage transmission line optical fiber monitoring network. The point type high-voltage transmission line optical fiber detection network comprises a transformer substation controlling unit, a first wavelength division multi-channel multiplexer, a second wavelength division multi-channel multiplexer, a third wavelength multi-channel multiplexer and two base rod tower monitoring subsystems. The transformer substation controlling unit comprises a communication controlling module, an optical signal demodulation module and a fourth wavelength division multi-channel multiplexer, and each base rod tower monitoring subsystem comprises a first optical path selection switch, a second optical path selection switch, a third optical path selection switch, a photovoltaic conversion module, a controller, a first electro-optical conversion module, a second electro-optical conversion module and a tower state sensor set. The point type high-voltage transmission line optical fiber detection network improves detection accuracy of aeolian vibration, conductor temperature and tower inclined degrees of the high-voltage transmission lines, and improves detection efficiency of the above-mentioned parameters.
Owner:STATE GRID CORP OF CHINA +2

Modularized natural energy power supply system

The invention relates to a modularized natural energy power supply system and belongs to the field of renewable energy power generation. The modularized natural energy power supply system comprises a solar photovoltaic cell module, a wind power electric generating set module, a water flow energy electric generating device module, and an electric power sharing system module, wherein the connection modes are that the solar photovoltaic cell module, the wind power electric generating set module and the water flow energy electric generating device module are in parallel connection with the electric power sharing system module, and an output end of the electric power sharing system module is connected with a load I (street lamps and other electrical apparatus) or / and a load II (municipal power grids) to supply power. The modularized natural energy power supply system combines a plurality of natural energy power generating technologies, and a joint and complementary power supply of various renewable resources is achieved. The modularized natural energy power supply system is suitable for serving as an electric power supply system for municipal infrastructures, remote areas and isolated islands, and has outstanding characteristics of being energy-saving, environment-friendly and innovative. The sizes of all the components of the modularized natural energy power supply system can be optimally designed and collocated according to the local characters and the needs of users.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Portable flow guiding pipe power generation device

The invention discloses a portable flow guiding pipe power generation device. The portable flow guiding pipe power generation device comprises a water guiding casing pipe, a support disc, rectiblocks,a water turbine and a power generator, wherein the water guiding casing pipe can be rolled up and unrolled. The water guiding casing pipe is mounted on the outer wall of a water delivery pipe in a threaded rotation manner and arranged to be of a spiral corrugated pipe structure. The cross section of the water guiding casing pipe is decreased gradually in the water flow direction. The water turbine is mounted inside the support disc. The support disc communicates with the two ends of the water guiding casing pipe. The rectiblocks are arranged at the positions, on the upstream and the downstream of the water turbine, in the water guiding casing pipe correspondingly and fixed to the inner wall of the water guiding casing pipe. A main shaft is driven to rotate through rotation of the water turbine, and the power generator outside the water guiding casing pipe is driven to generate power. The device can be applied to a large-size transport pipe and the small-size water delivery pipe; and energy of water flow in the pipe is extracted for power generation, and consequently, electric power storage, power supply to small-power electric equipment and the like are achieved.
Owner:TIANJIN UNIV

High voltage transmission line power taking method and device based on capacitive reactance matching shunt control

ActiveCN110690733ARealize online energy acquisitionExtended service lifeCircuit arrangementsCapacitanceControl theory
The invention discloses a high voltage transmission line power taking method and device based on capacitive reactance matching shunt control. An air gap magnetic core is inserted into a power transmission cable, and a matching capacitor C with certain capacitance value is connected with the secondary winding of the magnetic core to form a damping branch. On the power transmission cable on both ends of the magnetic core, a load is connected with the high-voltage power transmission cable through a shunt line through a clamp to form an energy taking branch. By setting the capacitance value to enable the equivalent excitation inductor of the magnetic core to carry out parallel resonance, the equivalent impedance of the damping branch is significantly increased, and the bus current is divided into the energy taking branch. The current of the energy taking branch is increased, and the current of the damping branch is decreased to provide high-power electrical energy through the energy takingbranch. According to the invention, the method and device are not affected by weather and climate; the overall power taking volume is small, so that the installation is easy; the device can take a large amount of power from a transmission bus, and can continuously and stably provide sufficient power for the online monitoring equipment of a transmission line; and the reliability of the online monitoring equipment of the transmission line is improved.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Device and method for preventing people entering transformer chamber by mistaken under electrified condition

InactiveCN106971477AMake up for the lack of five defense devicesPrevent stray entryBurglar alarmElectricityLow voltage
The invention relates to a device and a method for preventing people entering a transformer chamber by mistaken under an electrified condition. After a transformer body and high-low voltage side cables are installed completely, electricity is taken from two phases of the low voltage side in the transformer chamber and connected to a rectifier in the device. The rectifier provides 24V direct current voltage to a warning lamp and an infrared opposite irradiation alarm. Once the transformer is electrified to operate, the low voltage side of the transformer is electrified, and the warning lamp on a gate of the transformer chamber is electrified to give out light to represent that the transformer is in the operation state. The a light projector and a light receiver of the infrared opposite irradiation alarm are respectively arranged on two edges of the gate in the transformer chamber, so once an external worker bursts into the transformer chamber, the infrared rays emitted by the projector will be shielded, the light receiver fails to receive the infrared rays and immediately feeds the condition back to a host, so an alarm bell arranged in the transformer chamber is allowed to give out an alarm to prompt the worker about the fact that the transformer is in the electrified operation state and prompt the worker to timely get away from the transformer chamber.
Owner:CHINA FIRST METALLURGICAL GROUP

Pipeline power generation micro hydraulic turbine set

The invention discloses a pipeline power generation micro hydraulic turbine set. The pipeline power generation micro hydraulic turbine set comprises hydraulic turbine set units located inside and outside a pipeline, and a power generation rectification unit. Each hydraulic turbine set unit is composed of a spindle and at least two impellers, wherein the spindle is connected with the impellers, theimpellers and the spindle are in clearance fit, and the flow incident faces of the impellers are perpendicular to the inflowing direction so that the impellers can rotate to drive the spindle to rotate. At least two spindles are arranged in the pipeline. The power generation rectification unit comprises a gear speed-increasing box, a permanent magnet generator and a rectification circuit. Bearings for positioning the spindles are arranged in the positions where the spindles penetrate through the outer wall of the pipeline, and sealing rings are arranged between the bearings and the gear speed-increasing box and used for preventing liquid from entering the permanent magnet generators. According to the pipeline power generation micro hydraulic turbine set, aiming at the problems of low power generation efficiency and poor stability of a single pipeline hydraulic turbine, the hydraulic kinetic energy is extracted through the hydraulic turbine set adopting an array distribution mode and converted into electric energy, and thus power storage and power supply to small-power electric facilities are achieved.
Owner:TIANJIN UNIV

Joint waterproof detection system and detection method

The invention discloses a joint waterproof detection system and detection method. The detection system comprises a main body water tank, a temperature and humidity sensor and a data acquisition device, wherein the temperature and humidity sensor is placed in a to-be-detected joint, the to-be-detected joint is placed in the main body water tank, the data acquisition device is in communication connection with the temperature and humidity sensor so as to determine whether the to-be-detected joint fails or not based on temperature and humidity parameters acquired by the temperature and humidity sensor; the main body water tank is provided with a water inlet, and the water inlet is connected with a water inlet valve and a constant-pressure water pump; the main water tank is provided with a water outlet, and the water inlet is connected with a drain valve; the main water tank is also connected with a circulating water pump, one end of the circulating water pump is connected with a water inlet valve of the main body water tank, and the other end of the circulating water pump is connected with a drain valve of the main body water tank through a check valve. According to the invention, theproblems of electric energy supply and temperature and humidity signal transmission of the built-in temperature and humidity sensor are solved, and the technical effect of directly measuring the temperature and humidity in the cable joint is achieved.
Owner:STATE GRID BEIJING ELECTRIC POWER +2

Unmanned aerial vehicle, remote control fire-fighting crane, and hook lifting ring jointed high-rise fire-fighting and rescue device

The invention discloses an unmanned aerial vehicle, remote control fire-fighting crane, and hook lifting ring jointed high-rise fire-fighting and rescue device and belongs to the technical field of firefighting. The unmanned aerial vehicle, remote control fire-fighting crane, and hook lifting ring jointed high-rise fire-fighting and rescue device is composed of an unmanned aerial vehicle, a remotecontrol fire-fighting crane, a remote control rescue crane, a mounting rod (69), an electric hook lifting ring, a shoot nail fixing lifting ring, a main hook (2), a pulling rope (9), a network camera, a fire-fighting water hose connector (24), a fire-fighting water hose (25), a waterproof electric wire (27) and a wireless remote control device. The remote control fire-fighting crane and the remote control rescue crane rise and fall by means of the method that through the unmanned aerial vehicle, the electric hook lifting ring is mounted or the shoot nail fixing lifting ring, the main hook (2)and the pulling rope (9) are mounted, and water supplying, electricity supplying and wireless remote control are conducted on the remote control fire-fighting crane and the remote control rescue crane from the ground. The remote control fire-fighting crane can also serve as a high-altitude guarantee platform of the unmanned aerial vehicle to supply water and electricity to the unmanned aerial vehicle, so that the remote control fire-fighting crane and the remote control rescue crane rise and fall simultaneously, the flexible fire-fighting speciality of the unmanned aerial vehicle can be developed, the limit load and power supply problems of the unmanned aerial vehicle can also be solved, and the high-rise fire-fighting and escape-rescue problems can be solved.
Owner:陈贵文

Portable fish larvae fluorescent capture device

The invention discloses a portable fish larvae fluorescent capture device, which comprises a floater, a top plate, a main container, a fluorescent rod, a fluorescent rod protective tube, a bottom plate, a hopper, weights and a nylon rope, wherein same corner holes are dilled at corresponding corners of the floater and the top plate; the floater and the top plate are connected through the nylon rope; the center of the top plate is drilled to form a fluorescent rod protective tube inserting hole; the upper end of an organic glass cylinder is adhered below the top plate and the lower end of the organic glass cylinder is adhered on the bottom plate; gaps are reserved between adjacent cylinders; soft pricker bars are adhered along edges of the gaps; any two opposite angles of the bottom plate are drilled to form weight connecting holes; the upper end of the external threads of the hopper is adhered to the periphery of a center hole of the bottom plate on the lower part of the bottom plate;and the lower end of the internal threads of the hopper is plugged by a hopper plug covered with a mesh to seal the bottom. The capture device is reasonable in structure, easy to manufacture, low in cost and convenient to use, and is particularly suitable for collecting fish larvae in different water depths and complicated aquatic habitat water during scientific research.
Owner:INST OF AQUATIC LIFE ACAD SINICA
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