10results about How to "Stable power generation" patented technology

The application provides a downhole while-drilling active refrigeration temperature difference power generation device and a downhole power generation system, and relates to the field of energy sources.The downhole while-drilling active refrigeration temperature difference power generation device comprises a power transmission module, a refrigeration module, a thermal management module, a while-drilling instrument electric control module and a power generation module; the power transmission module is magnetically coupled with the refrigeration module, and is used for driving the refrigeration module to generate cold energy by taking downhole fluid as a motive energy source; the thermal management module transmits cold energy to the power generation module; the power generation module comprises at least one temperature difference power generation sheet, is connected in series with the while-drilling instrument electric control module, is used for generating power by using a temperature difference, and supplies power to the while-drilling instrument electric control module and while-drilling instruments carried by the while-drilling instrument electric control module. Through the application, the temperature difference power generation method can be used to stably generate power in a downhole environment, and the effect of providing stable electric energy for while-drilling instruments can be achieved.

This invention discloses a multi-axis wave power generation device, which includes a carrier, a main body coupled to the carrier, a wave generator set, a rotating mechanism, a lifting mechanism, and a control unit electrically connected to the rotating mechanism and the lifting mechanism. The wave generator set is coupled to the main body and includes a cantilever. The rotating mechanism is coupled between the carrier and the main body, and the lifting mechanism is coupled between the cantilever and the main body. The control unit is used to control the rotating mechanism to drive the main body to rotate relative to the carrier about a vertical axis to adjust the direction of the cantilever relative to the carrier, and is also used to control the lifting mechanism to drive the cantilever to rotate relative to the main body about a horizontal axis to adjust the angle between the cantilever and the main body.

The invention discloses a closed circulation multi-stage collaborative water power generation device. Belongs to the technical field of hydroelectric generation. According to the technical key points, the device comprises a base, the top of the base is fixedly connected with a water channel, the top of the base is fixedly connected with a plurality of water tanks distributed in the length direction of the water channel through a first support, the water tanks are distributed in a step shape from low to high from left to right, and each water tank is provided with a plurality of buoyancy power generation sets; the top of the base is further fixedly connected with a water tower located on the right side of the rightmost water tank through a second support, and the bottom of the water tower is higher than the top of the rightmost water tank. The closed water tower structure is adopted, self-suction type water circulation is achieved through internal pressure change formed by water level descending, water flow closed-loop circulation can be completed without continuous external water replenishing in cooperation with automatic control of the multi-step water tank and the electric control valve, and dependence on an external water source is remarkably reduced.

This invention provides a power generation device based on the cold energy of a cryogenic propane tank, comprising a liquefied propane vaporizer, a propane heater, an intermediate medium vaporizer, a turbine generator set, and a dimethylamine circulating pump. The tube-side inlet of the liquefied propane vaporizer is connected to a cryogenic storage tank containing propane. The tube-side outlet of the liquefied propane vaporizer is connected to the tube-side inlet of the propane heater, and the tube-side outlet of the propane heater is connected to a propane pipeline network. Dimethylamine, after passing through the dimethylamine circulating pump, is connected to the tube-side inlet of the intermediate medium vaporizer. The tube-side outlet of the intermediate medium vaporizer is connected to the inlet of the turbine generator set, and the outlet of the turbine generator set is connected to the shell-side inlet of the liquefied propane vaporizer. The shell-side outlet of the liquefied propane vaporizer is connected to the inlet of the dimethylamine circulating pump. This invention achieves dual-sided cascaded energy recovery from cold to heat. Compared to traditional direct seawater heating schemes, the net power generation is increased.

The utility model relates to an energy-saving sports bracelet in the field of sports bracelets, which comprises a dial plate, a first watchband, a second watchband and an energy-saving component. The first watchband is mounted on the first side of the dial. The energy-saving assembly comprises a hollow box, two conductive plates, a non-metal friction block and a plurality of springs, the first side of the hollow box is rotatably mounted on the second side of the dial plate, and the second watchband is mounted on the second side of the hollow box. In the shaking process of the arm, the non-metal friction block keeps a stable motion state all the time, friction is conducted between the non-metal friction block and the two current-conducting plates to generate electricity, and meanwhile due to the fact that the non-metal friction block is located in the gap between the two current-conducting plates, even if the arm is in multi-angle motion, the non-metal friction block and the two current-conducting plates can still generate effective friction and generate electricity. Compared with light energy power generation in the prior art, the energy-saving sports bracelet is not influenced by actions of arms during movement, power generation is more stable and continuous, and the problem that power generation is unstable due to the fact that an existing energy-saving sports bracelet is difficult to absorb light energy during shaking is solved.

The utility model discloses a water turbine tail water taper pipe flow deflector which comprises a water turbine body, the input end of the water turbine body is connected with a connecting base, the input end of the connecting base is connected with a tail water taper pipe, and the outer side wall, close to a tail pipe vortex strip area, of the tail water taper pipe extends outwards to form two annular convex hulls. Mounting rings are connected to the interiors of the two convex hulls, a plurality of fixing bases are connected to the inner side walls of the two mounting rings in the circumferential direction, and by reserving the multiple fixing bases, the flow deflectors with the specified number can be arranged according to the water flow condition in the pipeline before actual installation; the flow deflectors of special structures are arranged in the area, close to the tail pipe vortex strip, of the tail water taper pipe, water flow can be effectively divided and restrained, complex water flow movement in the tail water pipe is optimized, meanwhile, the flow deflectors of the specified number can be installed according to the arranged fixing bases before installation, and installation is convenient. And hydraulic vibration caused by the vortex can be effectively reduced through the flow deflectors, impact on a pipeline is relieved, and the operation stability of equipment is improved.

The application belongs to the technical field of weak wind power generation, and particularly relates to a weak wind power generation system, which comprises two transmission shafts, one of which is an inner rotating shaft, and the other is an outer rotating shaft, a conical convex head is fixedly connected to the inner rotating shaft, a fan blade is fixedly connected to the side surface of the conical convex head on the inner rotating shaft, two mounting discs are fixedly connected to the outer rotating shaft, three mounting supports are fixedly connected around the mounting disc, unequal matrix hollow holes are arranged on the mounting supports, helical leaves are fixedly connected to one end of the mounting supports, and helical blades are fixedly arranged between the two mounting supports. The unique structure design of the application effectively improves the wind energy capturing efficiency, and the system can stably operate in a weak wind environment. Through optimization of transmission and power generation components, energy loss is reduced, and efficient electric energy conversion is ensured. The miniaturized design facilitates installation and transportation, and the system can be widely applied to multiple fields, and provides strong support for solving energy problems.

This invention discloses a wind turbine generator and its power control method that uses pitch angle adjustment as an alternative to pitch control, belonging to the field of wind power equipment manufacturing. Based on a beam-shaft separated wind turbine architecture, the main load-bearing beam is constructed as a motion mechanism capable of pitching around a fixed tail pin. The main load-bearing beam is a variable cross-section hollow rectangular box structure, with a rotary transmission shaft passing through its internal space along the axial direction. The two are independent of each other in the force path. Driven by a hydraulic cylinder or servo electric cylinder at the lower front, the nacelle, hub, blades, and main load-bearing beam are rigidly fixed to form a single rigid motion chain, pitching synchronously without internal relative motion. The wind turbine generator does not have a blade pitch mechanism or its associated slip rings or rotary joints, but instead has a control system that performs closed-loop control with the overall pitch angle as the control object. By actively increasing the pitch angle to reduce the effective windward area, it achieves a synergistic effect of precise power control, purely passive aerodynamic braking, and passive rearward shift of the center of gravity for self-stabilization when the pitch angle increases.

The application discloses a piezoelectric fuel cell and application thereof. The electrode of the application comprises a conductive substrate and a catalytic film fixed on the conductive substrate material, and the catalytic film comprises granular tetragonal phase BaTiO3, has good piezoelectric performance, strong active material loading firmness, simple preparation, low cost and other advantages, and can fully utilize mechanical energy and organic wastewater in the environment when used in the fuel cell, so that stable power generation and degradation of organic pollutants are simultaneously realized. Meanwhile, the tetragonal phase BaTiO3 of the catalytic film on the electrode of the application can improve the conductive performance and piezoelectric performance of the electrode by loading SnO2 or doped SnO2, and the electrode loaded with SnO2 or doped with SnO2 also has good piezoelectric performance, strong active material loading firmness, and simultaneously realizes stable power generation and effective degradation of organic pollutants, and is suitable for the fields of environmental protection and energy.

The application discloses a duct layout rigid-flexible mixed structure tethered aerostat type high-altitude wind power generation system, which comprises an aerial aerostat wind power generation system, an air-ground electric energy transmission and tethering cable and a ground anchoring system, the aerial aerostat wind power generation system is connected with the ground anchoring system through the air-ground electric energy transmission and tethering cable, the aerial aerostat wind power generation system comprises a duct configuration thin-walled truss bearing structure, annular air bags, tail wings, skin members and a wind turbine unit, the duct configuration thin-walled truss bearing structure has a plurality of constraint spaces distributed along the longitudinal direction; the plurality of annular air bags are arranged in the plurality of constraint spaces respectively; the plurality of tail wings are arranged at the rear part of the duct configuration thin-walled truss bearing structure; the skin members are sleeved on the duct configuration thin-walled truss bearing structure and the plurality of tail wings; and the wind turbine unit is installed in the duct configuration thin-walled truss bearing structure through a supporting structure. The application has the advantages of stable structure, long-time air-staying stable power generation, low cost and autonomous controllability.