11results about How to "Realized loss" patented technology

The invention provides a seawater hydrogen production and storage system and a seawater hydrogen production and storage process using offshore wind power. The seawater hydrogen production and storage system comprises a permeable membrane system, a two-stage RO membrane system, an EDI ultrapure water system and a hydrogen production and storage system, and the permeable membrane system, the two-stage RO membrane system, the EDI ultrapure water system and the hydrogen production and storage system are connected in sequence; in the seawater purification direction, the permeable membrane system comprises a forward osmosis module and permeable membrane modules, the forward osmosis module comprises a forward osmosis membrane and absorption liquid, the absorption liquid is selected from a sodium chloride solution with the mass concentration of 3-15%, and the number of the permeable membrane modules connected in series is 1-3. According to the seawater hydrogen production and storage system, the seawater is subjected to graded purification, the purified seawater can be directly discharged to the sea, the purified ultrapure water can thoroughly avoid a series of problems of chlorine, calcium and magnesium precipitation and the like in the subsequent water electrolysis hydrogen production process, and liquid hydrogen storage oil is directly prepared through the hydrogen production and storage system and is convenient to transport on the sea and other scenes.

The invention discloses a power system subsynchronous resonance energy recovery device and method, and belongs to the technical field of power systems. The device comprises a band-pass filtering unit, a bypass switch unit, a three-phase monitoring unit, a control unit, a three-phase thyristor full-bridge circuit and a three-phase inductance energy storage module. The band-pass filtering unit is connected in parallel to a unit outlet bus, and the bypass switch unit is connected in parallel to two ends of the filtering unit to realize time-sharing switching; and the control unit identifies resonance according to the monitoring signal and controls the thyristor full-bridge circuit to be switched between a rectification mode and an inversion mode. The method comprises the following steps: bypass filtering in standby, and monitoring power frequency; when resonance exceeds a threshold value, filtering and rectifying energy storage are carried out; after resonance is eliminated, bypass filtering is carried out, and inversion feedback energy is sent to a power grid. According to the invention, through cooperation of the pre-filtering and the bypass switch, precise detection, rapid suppression and energy loss-free recycling of subsynchronous resonance are realized, and the system economy and the equipment reliability are greatly improved.

This invention provides a method and system for dynamic correction of a hoist under speed loop control, relating to the field of data processing. The method includes: acquiring the hoist car's descent information during cargo entry into the hoist car, and performing dynamic correction of the hoist's descent based on this information; collecting the real-time motor speed of the hoist during cargo transportation, and adjusting the phase current of the hoist motor based on the real-time motor speed and a preset motor speed; and acquiring the hoist car's lifting information during cargo exit from the hoist car, and performing dynamic correction of the hoist's lifting based on this information. This method has the advantage of improving the real-time performance and accuracy of hoist correction.

The application provides a high beam module and a vehicle lamp. The high beam module comprises a light source for emitting light; a high beam lens arranged on the light emitting side of the light source, the high beam lens being an integral structure, the high beam lens comprising a light inlet surface, a first total reflection surface, a second total reflection surface, a third total reflection surface and a light outlet surface, the second total reflection surface and the third total reflection surface being oppositely arranged along a first direction, the light outlet surface being located on one side of the third total reflection surface along a second direction, the light emitted by the light source being projected to the first total reflection surface through the light inlet surface, the parallel light being formed after being reflected by the first total reflection surface, the parallel light being reflected by the second total reflection surface and the third total reflection surface in sequence, and the parallel light being emitted by the light outlet surface to form a high beam light pattern; the light outlet surface comprises a plurality of sub-light outlet surfaces arranged in sequence along a third direction, and the distance between the root of each sub-light outlet surface and the light source along the second direction gradually increases along the third direction. The application can improve the light efficiency of the high beam module while ensuring the narrow opening size.

This invention provides a wellbore nitrogen atomization acidizing system and method, belonging to the field of reservoir stimulation technology. The system includes: an atomization unit with an atomization outlet located inside the wellbore for generating initial acid in an atomized state; an acid recovery unit equipped with an acid recovery pump for recovering acid and obtaining a mixed acid solution; a separation unit for separating the mixed acid solution to obtain the initial acid solution and injecting it into the atomization unit; a control unit for determining an acid distribution scheme based on real-time acidizing status information, generating a corresponding acid supply command based on the scheme, and distributing the command to the acid supply unit; and an acid supply unit connected to the inlet of the atomization unit for supplying the initial acid solution to the atomization unit based on the acid supply command. This invention effectively improves acidizing performance, reduces acid loss, and is adaptable to complex wellbore environments.

The utility model provides a steam heating bin pretreatment device suitable for semi-solid hazardous waste, which comprises a steam generator, a steam output pipe, a steam chamber, an SMP mixing bin and a steam loop pipe, one end of the steam output pipe is connected with the steam generator, the other end of the steam output pipe is connected with the steam chamber, the steam chamber is positioned between the inner wall of the SMP mixing bin and a stirring shaft of the SMP mixing bin, and the steam loop pipe is connected with the steam chamber. The steam output pipe is arranged in the steam chamber and is arranged on the inner wall of the SMP mixing bin, one end of the steam loop pipe is connected with the steam chamber, the other end of the steam loop pipe is connected with the steam generator, the steam output pipe electric control valve is arranged on the steam output pipe, and the loop pipe electric control valve is arranged on the steam loop pipe. According to the device, through combination of steam heating and mechanical stirring, the problem that the semi-solid hazardous waste cannot be stirred and mixed uniformly due to high-temperature melting or low-temperature solidification in the pretreatment stage can be effectively solved, so that efficient pretreatment of the semi-solid hazardous waste with high temperature sensitivity is achieved, and the fluidity and uniformity of the semi-solid hazardous waste are improved.

The present application relates to a kind of V2G two-way charging piles of electric vehicle charging facilities and grid interaction field, including power conversion unit, control unit, metering unit, man-machine interaction unit and communication unit;Charging pile is also provided with: discharging gun head, for taking power from vehicle battery;Charging gun head, for charging to vehicle battery;Interlock mechanism, for ensuring that only one gun head can be connected with electric vehicle;Local energy sharing module, for sharing the battery state information of connected vehicle in the local charging pile group, and realizing charging pile group energy scheduling coordination;Control unit also includes battery health state evaluation module, grid state detection module, user demand setting module and energy scheduling optimization module;The charging pile can realize charge-discharge physical isolation by double-gun interlocking design, realize car-car direct energy transfer by local energy sharing of charging pile group, and combined with battery health management, construct safe, efficient, economic vehicle-grid interaction system.

The present application relates to a kind of cross thread engagement friction and wear test device and test method, belong to screw transmission mechanism field;Including support base plate, ball screw nut, first gear drive motor, sliding table, sliding guide, ball screw, synchronous belt, first synchronous pulley, second synchronous pulley, first connector, cantilever support frame, roller, second connector, main screw and bearing support;The present application is simulated by complete simulation planetary roller screw main screw outer thread and roller outer thread engagement contact mode, control main screw rotation, roller rotation, roller revolution, roller axial load, realize the sliding of multiple rollers and main screw engagement contact, rolling, rolling and sliding friction and wear test, obtain the friction and wear law of main screw and roller under different rotational speed and different axial load, lay the foundation for reducing friction, reducing wear, improve planetary roller screw transmission efficiency and work reliability.

The invention discloses a heat management and service life prediction method and equipment for waste heat recovery equipment. The method comprises the following steps: firstly, collecting related data of the waste heat recovery equipment, integrating historical maintenance data, fault data and material attribute data of the equipment to form a multi-dimensional data set, and based on the data set, fusing a multi-physics theory and a simulation technology to construct an equipment digital twinborn body; training by utilizing actual operation data and fault data of equipment and simulation data generated by a digital twinborn body to obtain a life prediction model; then, under the safety constraint of the equipment structure, determining optimized operation parameters based on a target optimization function which aims at prolonging the residual life of the equipment and improving the waste heat recovery efficiency; inputting the optimized operation parameters into digital twinborn simulation to determine corresponding waste heat recovery efficiency, and predicting the residual life of corresponding equipment based on a simulation result through a life prediction model; and if the waste heat recovery efficiency and the residual life of the equipment corresponding to the optimized operation parameters are superior to those of the current state, the equipment is controlled to operate according to the optimized operation parameters.

The invention relates to the technical field of solar power, in particular to a solar power energy storage device which comprises a photovoltaic panel support, a device switch control mechanism is arranged on the front side of the photovoltaic panel support, the photovoltaic panel support comprises a supporting frame, and a photovoltaic assembly is arranged at the top of the supporting frame. By arranging the photovoltaic panel support and the device switch control mechanism, efficient collection, stable storage and flexible output of solar energy are achieved. Through an ingeniously designed mechanical structure, automatic switching of the photovoltaic panel between a working environment and a protection state is realized, damage of dust, rainwater and other impurities to the photovoltaic panel is effectively avoided, the service life of the photovoltaic panel is prolonged, the maintenance cost is reduced, and meanwhile, the service life of the photovoltaic panel is prolonged. The electricity storage state and the output state of the energy storage part can be flexibly adjusted according to actual requirements, stable supply of electric energy is ensured, when the energy storage part stores electricity, the energy storage part is tightly connected with the energy conveying bin in a butt joint mode, efficient transmission and storage of the electric energy are ensured, and loss of the electric energy is avoided.

The application relates to the technical field of optimization control of energy storage power converters, and particularly provides a high-voltage battery energy storage power converter optimization system and method, which comprises a working condition simulation module, a loss calculation module and a comprehensive analysis module; the working condition simulation unit is used for performing transient state simulation on the high-voltage battery energy storage power converter; the loss calculation unit is used for calculating the loss of the high-voltage battery energy storage power converter in the transient state simulation environment; and the comprehensive analysis unit is used for comprehensively optimizing the high-voltage battery energy storage power converter based on the loss of the high-voltage battery energy storage power converter in the transient state simulation environment. The technical scheme provided by the application can provide a basis for three-level converter control, modulation strategy algorithm selection, device parameter selection and thermal design.