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112results about How to "Reduce self-consumption" patented technology

Biomass energy circulation electrification technique as well as generating system thereof

The invention provides a biomass energy IGCC technology which is characterized in that the technology comprises the following steps that: (1) the biomass raw material is gasified to be converted into the combustible gas which is dedusted and decoked as well as purified and is sent to a gas internal-combustion engine to generate electricity; (2) the biomass raw material or the clinker generated in the gasification and power generation process in the step 1 or the mixture of the two is sent to a steam boiler to be burnt in order to generate the superheated steam; the exhaust heat of the gas internal-combustion engine of the step 1 is inlet to an exhaust-heat boiler to generate the superheated steam; (3) the superheated steam generated by the steam boiler and the exhaust-heat boiler of the step 2 is sent to a turbonator set. The biomass energy IGCC technology takes full advantage of the heat energy and the product generated by each processing step in the biomass energy gasification and power generation process and generates electricity circularly, thereby greatly raising the power generation efficiency, taking full advantage of waste materials and lowering the running cost. The invention also discloses a power generation system for realizing the biomass energy IGCC technology.
Owner:黄家笙 +1

Temperature protection circuit for lithium ion battery charging and discharging

The invention discloses a temperature protection circuit for lithium ion battery charging and discharging, which comprises a battery charging and discharging circuit composed of a switch metal oxide conductor (MOS) tube Q4, a switch MOS tube Q1, a switch MOS tube Q2 and a peripheral circuit and a chip U1. The control end Q4-4 of the battery charging and discharging circuit is connected with a charging temperature control circuit unit and a discharging over temperature protection unit. The discharging over temperature protection unit is mainly composed of the U1, the Q1, the Q2 and a temperature protector TS. The charging temperature control circuit unit comprises a reference voltage supply circuit, a temperature sampling circuit, a voltage comparator, a Q5 and a Q6, wherein the voltage comparator is composed of a U2 and the peripheral circuit. The U2 is composed of U2A and U2B, and the reference voltage supply circuit is respectively composed of an R20, an R21, an R22 and an R23. The temperature sampling circuit is composed of an R19 and a temperature sensor TH1. The output end of the voltage comparator is connected with the Q5 connected with the Q6 in series, and the output end of the Q6 is connected with the control end Q4-4. The temperature protection circuit for lithium ion battery charging and discharging is low in self power consumption, high in reliability and capable of controlling charging and discharging temperature.
Owner:宁波良业电器有限公司

Internal combustion engine with double rotor pistons

The invention relates to the field of power machinery, in particular to an internal combustion engine with rotor pistons. The internal combustion engine is characterized in that 1, the two pistons which are mounted oppositely intermittently rotate around a center shaft in a cylindrical cylinder, air suction, compression, explosion and exhaust stoke are completed, energy of exploded gas acts on side surfaces of the pistons, output shafts are directly pushed to rotate, and the problem of energy dissipation of an engine with a reciprocating piston due to change of an included angle between a crank and a connecting rod is avoided; 2, compared with an engine with a reciprocating piston and a triangular rotor, the internal combustion engine does not have a reciprocating part or a movable valve or components thereof, does not realize eccentric movement, accordingly does not cause structural vibration, and is low in self consumption; 3, compared with a triangular rotor engine adopting a linear sealing component, the engine realizes surface sealing, does not need parts such as sealing strips and the like which are difficult in processing and easy to be worn, and is fine in sealing performance and high in reliability; 4, abrasion rate is low, abrasion of a main portion only depends on the abrasion degree of a bearing; and 5, the total engine is simple and compact in structure and high in thermal efficiency.
Owner:苏承寰

Energy saver for base station machine room air conditioners

The invention relates to an energy saver for base station machine room air conditioners. The invention solves the problems of high power consumption and short service life in the existing air conditioner. The energy saver comprises a shell and an automatic control loop assembled in the shell. The invention has the technical points that a temperature acquisition control unit is arranged in the automatic control loop, and a room temperature sensor and a return air inlet temperature sensor and an air outlet temperature sensor transmit the acquired temperature analog values in three ways: the temperature analog value in the first way is converted into a digital signal through an analog-to-digital conversion chip; the temperature analog value in the second way is converted into a voltage signal through a current/voltage conversion chip of an operating mode control unit; and the temperature analog value in the third way is converted into a voltage value through a current sensor in a fault detection and recovery unit, and a pulse driver in a temperature compensation unit emits a pulse signal to drive the semiconductor refrigerator to work, thereby carrying out real-time dynamic compensation control. Due to the reasonable structural design, the invention can automatically adapt to the change of the operating state of the air conditioner, quickly display the fault, realize automatic fault recovery, obviously prolong the service life of the air conditioner and enhance the energy saving effect.
Owner:亿宏技术有限公司

Yaw control method for wind generating set

The invention belongs to the technical field of wind power generation, and particularly relates to a yaw control method for a wind generating set. The yaw control method for the wind generating set comprises the following steps that different wind direction judgment modules are selected according to the period T (T=T0+T1), the contrastive analysis is conducted on the yaw frequency N# counted in different wind direction sections, and the yaw error angle delta theta is dynamically given in combination with the wind speed judgment section, and effective unit yaw control is achieved. The yaw control method has the beneficial effects that on the basis of existing yaw hardware equipment, the time lag control over a unit yaw wind countering system can be achieved; especially when wind direction fluctuation is little, the yaw wind countering angle is increased by dynamically giving the yaw error angle under the weak wind condition, the work frequency of the yaw system under weak wind is reduced, and the auxiliary power supply of the unit is reduced; and similarly, the yaw wind countering angle is reduced by dynamically giving the yaw error angle under the heavy wind condition, the yaw wind countering capability is improved, more wind energy is captured, and the power generating amount of the unit is increased.
Owner:BEIJING SANLI XINNENG SCI & TECH

Device system and method for achieving carbon dioxide cyclic power generation through geothermal energy

The invention provides a device system and method for achieving carbon dioxide cyclic power generation through geothermal energy. The disclosed system comprises a liquid CO2 storage tank, a high-pressure pump / compressor, a geothermal energy CO2 energy storage device, a terrestrial heat production well, a steady flow adjuster, a turbine / piston expander, a power generator, a cooler and a CO2 compressor. The invention further discloses a method, in the method, low-pressure liquid CO2 fluid serves as a working medium, geothermal water and low-temperature CO2 fluid exchange heat with each other to form supercritical CO2 fluid different in temperature, pressure and energy density, then the equal-pressure supercritical CO2 fluid is achieved through adjustment of the steady flow adjuster, and then power generation is conducted. According to the device system and the method, heat energy in the geothermal water with the temperature ranging from 70 DEG C to 300 DEG C in the terrestrial heat production well is adopted for conducting energy storage on the liquid CO2, carbon dioxide cyclic power generation is achieved after tempering, the heat energy can be efficiently recycled, and high heat efficiency is improved; and energy in the terrestrial heat is effectively stored and utilized, and flexible adjustment and utilization of energy are achieved.
Owner:长沙紫宸科技开发有限公司

Solar energy power supply circuit for wireless sensor network node

The invention discloses a solar energy power supply circuit for a wireless sensor network node. The solar energy power supply circuit comprises a solar cell panel, a charging protection circuit, a storage battery, a discharging protection circuit, a DC (direct current)-DC circuit and a load, and is characterized in that the solar cell panel supplies power for the storage battery through the charging protection circuit in a constant voltage mode; the discharging protection circuit is connected with the storage battery in series, and is provided with a reference voltage, when the output voltage of a reference end of the storage battery achieves or exceeds the reference voltage, the storage battery supplies power for the load, and when the output voltage of the reference end of the storage battery is lower than the reference voltage, the storage battery stops supplying power for the load, and discharging protection is carried out; and the DC-DC circuit is connected to the discharging protection circuit in series. The charging protection circuit and the discharging protection circuit of the solar energy power supply circuit have complete functions and simple structures and are low in self power consumption, and the solar energy power supply circuit for the wireless sensor network node has a wide application range.
Owner:JIANGSU UNIV

Antifreezing and anti-blocking method of natural gas runner

ActiveCN101776209ASolve the problem of clogged natural gas flow channelLower dew pointOther chemical processesPipeline systemsSelf consumptionPollution
The invention discloses an antifeezing and anti-blocking method of a natural gas runner, which comprises the following steps: periodically adding antifreeze into the natural gas runner so as to reduce the dew point of the natural gas and the freezing point of the water in the natural gas runner, and prevent the water from freezing and blocking the natural gas runner. The invention can effectively solve the problems that the natural gas runner is frozen and blocked, mixed solid content formed by natural gas hydrate and ice block the natural gas runner, also can greatly reduce the dew point of the natural gas, cosmically simplify the productive process of the natural gas, particularly, cosmically simplify the natural gas ground surface gathering process, greatly reduce the cost of the natural gas production, energy consumption, gas self consumption, management working load, and the like, fundamentally eliminate methanol harm and pollution in the natural gas production, realize non alcoholization of the natural gas productive process, and has the advantages of easy implementation, safety and reliability, wide application, easy popularization and the like. The economic benefit, environmental protection benefit and safety benefit are remarkable.
Owner:BEIJING UNITY BENEFICIAL TECH CO LTD

Inclined single-shaft self-adaptive sun tracker for photovoltaic power generation

The invention relates to an inclined single-shaft self-adaptive sun tracker for photovoltaic power generation. The inclined single-shaft self-adaptive sun tracker is characterized in that: a power output shaft of a speed reducer fixedly arranged on the top of a front upright is connected with the front end of a front shaft tube, the rear end of the front shaft tube is connected with the front part of a connecting shaft, and the rear part of the connecting shaft is fitted in the hole of a bearing pedestal and extended out of the bearing pedestal to be connected with a rear shaft tube; crossbeams are fixedly arranged on both sides of the front and the rear shaft tubes, and vertical beams are fitted on the crossbeams through heel blocks; the top of an A-shaped rear support is fixedly arranged on the bottom of the bearing pedestal; limit bars are symmetrically arranged on both sides of the outer surface of the bearing pedestal, and a limit block is arranged on the front part of the rear shaft tube; the axial central lines of the front and the rear shaft tubes are inclined at 20 to 35 degrees relative to the horizontal line; and the vertical central line of the rear support is perpendicular to the axial central lines of the front and the rear shaft tubes. The inclined single-shaft self-adaptive sun tracker has the advantages of small starting torque, high stability and high reliability, and greatly increases the generating capacity of a solar panel; all the main parts are made of high-quality steel products and undergo hot galvanizing and other processes, and thereby the service life and the corrosion resistance of the inclined single-shaft self-adaptive sun tracker are guaranteed.
Owner:SHEYANG ZHENGANG PV EQUIP MFG

Liquid pipeline built-in compact type aluminum-air fuel cell monomer

The invention relates to an aluminum-air fuel cell monomer structure, particularly to a liquid pipeline built-in compact type aluminum-air fuel cell monomer capable of achieving built-in liquid supply through a liquid pipeline in the reaction power generation process of an aluminum-air fuel cell, so that the phenomenon of liquid connection is avoided, and the consumption rate of aluminum is reduced. The liquid pipeline built-in compact type aluminum-air fuel cell monomer comprises a shell, an aluminum electrode is arranged in the shell through an aluminum electrode holder, an inner grid is arranged on each of two opposite side surfaces of the shell, an air electrode is arranged on the outer side of each inner grid, a grid plate is arranged on the outer side of each air electrode, a seal ring is arranged between the aluminum electrode holder and the shell, the air electrode is tightly fitted with the shell, an aluminum electrode connection bar is arranged on the aluminum electrode holder, and a liquid inlet and a liquid return opening are formed in the shell, and are respectively communicated with an inner cavity of the shell through pipelines. The liquid pipeline built-in compact type aluminum-air fuel cell monomer has the advantages of reasonable structural layout, small size and compact structure, the phenomenon of liquid connection is avoided, and the consumption rate of aluminum is reduced.
Owner:郑州佛光发电设备股份有限公司

Bypass power generation process and system of dry-process rotary kiln cooperative processing of wet garbage

The invention discloses a bypass power generation process and system of dry-process rotary kiln cooperative processing of wet garbage. According to the process, the wet garbage is fed into a C5 discharge pipe, high-temperature alkali powder inside the C5 discharge pipe rapidly dries and alkalifies the garbage, the dry and combustible garbage enters a kiln tail smoke chamber along with the powder to be rapidly gasified and combust, high-temperature steam and combustion emissions generated by combustion are pumped into a bypass settlement flue, are processed by the bypass settlement flue and a bypass draught fan and are mixed into exhaust gas waste heat of a grate cooler head, then the blast capacity and the blast temperature are adjusted, then a steam boiler produces steam power for power generation, garbage not combusting out in time and ash combusting out enter a rotary kiln along with raw power materials to be combusted to be clinker, and hydrocarbon not combusting out in time ascends into a decomposing furnace to continue to combust out. The invention further discloses the bypass power generation system of the dry-process rotary kiln cooperative processing of the wet garbage. The method and system can solve the problems that urban life garbage affects the kiln condition and coal consumption is increased, and can effectively eliminate the problem that a kiln system is blocked by water and chlor-alkali in the garbage.
Owner:长沙紫宸科技开发有限公司

Device system utilizing cement plant waste heat for achieving carbon dioxide cyclic power generation

The invention provides a device system utilizing cement plant waste heat for achieving carbon dioxide cyclic power generation. The device comprises a liquid CO2 storage tank, a high-pressure pumping device, a CO2 energy storage device, a flow stabilizer, a turbine/piston expander, a power generator, a cooling device and a compression device. The CO2 energy storage device is used for making low-pressure liquid CO2 fluid pumped out of the liquid CO2 storage tank directly absorb abandoned waste heat or high-temperature heat energy which is different in temperature and is produced by a cement production line for energy storage, and the low-pressure liquid CO2 fluid is converted into supercritical CO2 fluid different in temperature, pressure and energy density. The flow stabilizer is used for converting the supercritical CO2 fluid different in temperature, pressure and energy density into equal-pressure supercritical CO2 fluid. According to the device system, captured carbon dioxide serves as a working medium, various kinds of abandoned waste heat which is generated in the cement production process and is large in temperature fluctuation and temperature difference is utilized as main energy to achieve carbon dioxide cyclic power generation, and energy consumption is low.
Owner:长沙紫宸科技开发有限公司

Liquid path built-in compact aluminium-air fuel cell stack

The invention relates to an aluminium-air fuel cell stack structure, and in particular relates to a liquid path built-in compact aluminium-air fuel cell stack. The liquid path built-in compact aluminium-air fuel cell stack comprises a tray; a cell monomer set is arranged over the tray; a front end plate and a rear end plate are arranged at the front and rear ends of the cell monomer set; a lacing wire is arranged in a manner of penetrating the front end plate, the cell monomer set and the rear end plate; a liquid inlet interface and a liquid return interface are arranged on the front end plate; an electrode lead-out interface is arranged on the rear end plate; liquid inlets and liquid return holes are arranged on cell monomers; the liquid inlets and the liquid return holes on the cell monomers in the cell monomer set are respectively connected, such that two closed passageways are formed; the liquid inlets and the liquid return holes of the cell monomers near the front end plate are respectively communicated with the liquid inlet interface and the liquid return interface on the front end plate; and the liquid inlets and the liquid return holes of the cell monomers near the rear end plate are each provided with a liquid path seal head. The liquid path built-in compact aluminium-air fuel cell stack disclosed by the invention has the advantages of being reasonable in structural layout, small in volume, compact in structure and convenient to use, replace and maintain; the liquid sticky phenomenon is avoided; and aluminium consumption rate is reduced.
Owner:郑州佛光发电设备股份有限公司

Sleep control method for exchange variable pitch control system

The invention discloses a sleep control method for an exchange variable pitch control system. The method comprises the steps that in the normal electricity generating state of a wind electricity generating set, the variable pitch control system drives blades to reach the optimum blade pitch angle positions, when | a blade actual position-the optimum blade pitch angle | is less than or equal to 0.1degree error, after some time is delayed, a main control controls the variable pitch control system to enter a sleep mode, a variable blade driver stops outputting, and a variable blade motor brake conducts band-type brake to make the blades reach the optimum blade pitch angle positions. When the variable blade driver breaks down or | a preset main control blade pitch angle-the optimum blade pitch angle | is greater than 0.1 degree, the main control controls the variable blade driver to quit the sleep mode, the variable blade driver begins outputting, and the variable blade motor brake conducts brake releasing. According to the method, the exchange control variable blade system can enter and quit the sleep mode, the work time of the variable blade driver and a variable blade motor is shortened, the temperature rising of the system can be effectively reduced, the using life of a super-capacitor is prolonged, the self-power-consumption of the variable blade control system is reduced, and the wind electricity generating set can be more energy-saving and more environmentally friendly.
Owner:ZHEJIANG WINDEY

Natural gas differential pressure energy recovery unit device

The invention provides a natural gas differential pressure energy recovery unit device which is arranged between a natural gas inlet pipeline and a natural gas low pressure equipment pipeline.The device comprises a turbo expander, a gas inlet pipeline of the turbo expander is connected with the natural gas inlet pipeline, an exhaust pipeline of the turbo expander is connected with the equipment pipeline in need of natural gas, the turbo expander is further connected with a clutch, an output shaft of a motor is coaxially connected with a compressor, and the other end of the motor is coaxially connected with the turbo expander through the clutch.Compared with the prior art, the turbo expander of the natural gas differential pressure energy recovery unit device and a pressure regulator subcircuit are arranged in parallel, when the turbo expander breaks down and the clutch separates quickly, a gas circuit can be switched to the pressure regulator subcircuit rapidly, and normal operation of a system is not influenced.Through arrangement of the turbo expander, a pressure regulator can be effectively replaced to achieve the function of lowering the pressure, meanwhile, action is conducted outward, the compressor is driven to run, self-consumed electricity is effectively reduced, and full utilization of energy is achieved.
Owner:HUADIAN ZHENGZHOU MECHANICAL DESIGN INST
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