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186results about How to "Achieve optimal utilization" patented technology

Offshore renewable energy source comprehensive power generating system

The invention relates to an offshore renewable energy source comprehensive power generating system, belonging to the technical field of renewable energy source power generation. The comprehensive power generating system comprises a single pile structure (1), three power generating devices and an electrical connecting circuit. The three power generating devices comprise a wind power generating device, a wave energy power generating device and a tidal energy power generating device which are respectively connected with a direct-current bus (19) in the comprehensive power generating system in parallel by three direct-drive permanent magnet generators (3-1, 3-2, 3-3) and three rectifiers (16-1, 16-2, 16-3), and connected to a reverser (21) on the bank by a seabed cable (20), and finally merged in a power grid by a boosting transformer (22). The offshore renewable energy source comprehensive power generating system can integrate the offshore wind energy power generation, wave energy power generation and tidal energy power generation to an organic combined body, and realizes the compatibility of various power generating devices and the credible connection of various power generating devices with the power grid by the electrical connecting system.
Owner:HOHAI UNIV

Integrated power generation system for compressed air energy storage and combined cycle

The invention discloses an integrated power generation system for compressed air energy storage and combined cycle. The integrated power generation system comprises a compressed air energy storage system, an air turbine power generation system, a gas turbine power generation system, a steam turbine power generation system and a heat storage device and a cold storage device, wherein the compressed air energy storage system is formed by sequentially connecting a motor, an air compressor and a large air storage chamber; the large air storage chamber supplies compressed air to the air turbine power generation system and the gas turbine power generation system; the heat storage device is used for absorbing the exhausted air sensible heat of the air compressor, and heating water supplied by the steam turbine power generation system through a water supply heat exchanger; and the cold storage device is used for acquiring cooling quantity from the low-temperature exhausted air of an air turbine, and performing heat exchange with a condenser of the steam turbine power generation system. The compressed air energy storage system is organically combined with a gas-steam combined cycle power generation system, heat energy in air compression and expansion links is optimally utilized, and the heat economy of the power generation system and the peak shaving performance of a power grid are improved.
Owner:甘肃西拓能源有限公司

Method for guaranteeing transmission quality of security monitoring data in wireless local area network

The invention discloses a method for guaranteeing the transmission quality of security monitoring data in a wireless local area network, belonging to the wireless security monitoring field. The methodof the invention comprises the following steps: 1) wireless nodes register at the access point of the wireless device and provide the configuration information containing the priority of the wirelessnodes to the access point of the wireless device; 2) the access point of the wireless device initializes the bandwidth of each wireless node; 3) access point of the wireless device monitors the communication bandwidth of the wireless nodes and the uplink bandwidth of the access point and judges whether the uplink bandwidth is sufficient or not according to the monitoring result; 4) if not, the bandwidth allocation is performed according to the priority of the wireless nodes; and 5) the wireless nodes automatically regulate the data stream according to the obtained bandwidths. Compared with the prior art, the method of the invention optimizes the network resource, reduces the delay and packet loss rate of data transmission and greatly improves the transmission quality of security monitoring data.
Owner:北京携远天成技术有限公司

Microgrid electric energy transaction method based on master-slave intelligent contract

InactiveCN110119963AAccurate and efficient executionEfficient interconnectionMarket predictionsFinanceInternet communicationElectricity price
The invention discloses a microgrid electric energy transaction method based on a master-slave intelligent contract, and the method comprises the steps: firstly, building a microgrid information physical system, carrying out the real-time monitoring and collection of system data, building a real-time electricity price model of an electric power transaction system stage, and marking transaction reference electricity prices in the master-slave intelligent contract; secondly, creating transactions among the intelligent nodes of the microgrid users according to actual supply and demand conditions,and signing intelligent contracts; and finally, enabling the transaction to achieve the consensus, enabling a blockchain cloud platform to automatically execute the smart contract, and writes the process data generated by the transaction into the block for storage to complete the transaction. The microgrid physical topology and the transaction cloud platform are efficiently interconnected. Real-time monitoring and cloud computing of each electric quantity of a microgrid user side are realized. By combining a physical infrastructure, an internet communication technology, a cloud computing technology and a block chain bottom layer technology, the electric power market electric power resource and price trend are intelligently analyzed, deployment and execution of an intelligent contract arecompleted and accurate and efficient execution of microgrid electric power market transactions is ensured.
Owner:XIANGTAN UNIV

Method for preparing anhydrous aluminum chloride by microwave chlorination of fly ash

The invention relates to a method for preparing anhydrous aluminum chloride by microwave chlorination of fly ash and belongs to the technical field of aluminum chloride production. The method comprises a step 1 of causing high-alumina fly ash to undergo microwave heating chlorination decomposition: adding the high-alumina fly ash into solid carbon, performing mixing evenly, leading chlorine into the mixture, adopting a microwave fluidized bed with a microwave frequency of 2.3-2.5 GHz to perform heating for 5-60 min to reach 300-1200 DEG C, maintaining the constant temperature for 10-60 min, fully decomposing the high-alumina fly ash, and obtaining various chlorinated mixed gases containing aluminum chloride; a step 2 of performing separation and purification: causing the various chlorinated mixed gases containing aluminum chloride to undergo impurity removal and refining through a three-level condensation recycling device, and obtaining the anhydrous aluminum chloride product with a purity of larger than 99%. According to the method, the fly ash is adopted as a raw material to directly produce anhydrous aluminum chloride, the additional value of the product is improved, and the shortcomings of complexity in operation, high energy consumption and high production cost in the prior art are overcome through the method.
Owner:NORTHEASTERN UNIV

Centralized heating system with industrial waste heat integrated utilization function and using method thereof

The invention relates to a centralized heating system with an industrial waste heat integrated utilization function and a using method thereof. The centralized heating system comprises an industrial waste heat collecting subsystem, a heat transport network and a tail end heat utilization subsystem. The industrial waste heat collecting subsystem comprises a circulating water waste heat collecting device, a low-temperature waste heat material heat exchanger and an in-plant electric heating pump. The heat transport network comprises a primary network water supply pipeline, a primary network water return pipeline, a secondary network water supply pipeline, a secondary network water return pipeline, a circulating water supply pipeline, a circulating water return pipeline and a low-temperature waste heat material pipeline. The tail end heat utilization subsystem comprises a heating network water heat extracting device and a tail end electric heating pump. According to the centralized heating system and the using method thereof, by arranging the combination of the circulating water heat exchanger, the low-temperature waste heat material heat exchanger and the heating pumps on the in-plant heat source side, circulating water waste heat, technological material waste heat and the like can be recycled at a time according to the temperature grade, waste heat which cannot be recycled through direct heat exchange is recycled through the heating pumps, and gradient utilization of the industrial waste heat and optimized utilization of in-plant waste heat resources are achieved.
Owner:TSINGHUA UNIV

Energy-saving peak-shifting intelligent water supply system based on cloud technology

The invention relates to the field of intelligent water supply management systems, and discloses an energy-saving peak-shifting intelligent water supply system based on a cloud technology. The energy-saving peak-shifting intelligent water supply system is characterized by comprising pump houses, water storage tanks, water pump units, water supply pipeline assemblies, data acquisition and transmission units, pump house monitoring units, intelligent water tank adjusting and controlling units, hydraulic data monitoring units, water quality monitoring and treatment units, pipe network hydraulic data monitoring units, a cloud platform server and a cloud platform big data analysis module. The energy-saving peak-shifting intelligent water supply system has the beneficial effects that at the moment which is not water use busy hours, the water storage tanks are subjected to regulation and storage as a whole, pipe network water supply resources are optimized and distributed, the instant water demand on a municipal water supply pipe network during the water use busy hours is reduced, the fluctuation range of the pressure of the water supply pipe network is narrowed, fluctuation of the pressure of the water supply pipe network is low, the phenomenon of leakage of the pipe network can be reduced, stable water supply of a water plant system is guaranteed, the rebuilding requirements of the water factory municipal water supply pipe network and the water supply pipe assemblies are lowered, and national water supply resources and ancillary facilities are saved.
Owner:ANHUI SHUNYU WATER AFFAIRS CO LTD

Multicast flow forwarding method and multicast router in local area network

InactiveCN102158415AOptimize utilizationAvoid waste of processing resources and link bandwidth resourcesSpecial service provision for substationTraffic volumeShortest-path tree
The invention relates to a multicast flow forwarding method and a multicast router in a local area network. The method comprises the following steps of: enabling a non-DR (Designated Router) to enter a delay waiting state when a non-DR local access interface detects multicast flow forwarded by a DR; if the delay waiting overtimes, transmitting a PIM (Protocol Independent Multicast) access message to an upstream router in the RP (Rendezvous Point) or S (Source) direction; after the multicast flow is received from an RPT (Rendezvous Point Tree) or SPT (Shortest Path Tree), forwarding the multicast flow to the local area network; receiving an Assert message sent by the DR when the DR detects the multicast flow at a downstream outbound interface; and competing with the DR to forward the multicast flow according to the Assert message and a local routing metric value. In the invention, by introducing a non-DR local access interface principle and expanding the disposal to the non-DR local access interface type in the Assert process, when the non-DR competes with the DR to forward the multicast flow according to the Assert message and the local routing metric value to realize that a downstream multicast router does not exist in the local area network, a host receiver still receives the multicast flow from the router on the optimal path from the RP or S to the local area network, and therefore, the optimizing utilization to network resources is achieved.
Owner:ZTE CORP

Compressed air energy storage system

The invention discloses a compressed air energy storage system which comprises a motor, an air compression unit connected with the motor, an air storage chamber storing compressed air and a temperature controller controlling the temperature inside the air storage chamber. A water atomizing and spraying mechanism used for keeping the temperature inside the air storage chamber stable and a temperature sensor used for measuring the temperature inside the air storage chamber. The air compression unit is used for sucking in air, and after the air is compressed, the air compression unit delivers the compressed air to the air storage chamber through an air channel to be stored. The temperature controller is connected with the temperature sensor so as to receive signals of the temperature sensor. The temperature controller is arranged in a pipeline connected with the water atomizing and spraying mechanism so as to control the work state of the water atomizing and spraying mechanism according to the signals, guarantee that the temperature of the air inside the air storage chamber is kept in a relatively stable temperature interval all the time, prevent frequent alternation of heat and cold of the inner wall of the air storage chamber and guarantee that the air storage chamber is safe and stable.
Owner:TSINGHUA UNIV +1

Automatic cutting system and cutting method thereof

The invention discloses an automatic cutting system and a cutting method thereof. The automatic cutting system comprises an input/output circuit, a layout optimizing circuit, a cutting scheduling circuit and a numerical control cutting circuit, wherein the input/output circuit receives layout task data of an enterprise resource planning/computer aided design (ERP/CAD) system and returns a layout result of the layout optimizing circuit to the ERP/CAD system; the layout optimizing circuit performs layout optimizing calculation on data of the input/output circuit to generate an optimal layout graph scheme; the cutting scheduling circuit receives the optimal layout graph scheme of the layout optimizing circuit and reasonably decomposes the scheme into cutting tasks of a plurality of cutting machines; and the numerical control cutting circuit receives the cutting tasks of the cutting scheduling circuit and controls the cutting of the cutting machines. The independent layout optimizing circuit is connected to the cutting system, and the automatic cutting system has a set of total technical solution, can realize manufacturing automation by integrating the cutting process requirement of a production design with manufacturing equipment, improves the utilization rate of raw materials and cutting work efficiency, and optimizes factory management.
Owner:王石

Comprehensive benefit evaluation method of reactive power compensation device based on fuzzy comprehensive evaluation method

The invention discloses a comprehensive benefit evaluation method of a reactive power compensation device based on the fuzzy comprehensive evaluation method. The method comprises the steps of establishing a comprehensive benefit evaluation index system of the reactive power compensation device in a power transmission and distribution system; determining n to-be-evaluated configuration schemes for the reactive power compensation device among the nodes of the power transmission and distribution system, collecting evaluation indexes and subjecting the evaluation indexes to hierarchical reduction; conducting the normalization treatment; making indexes being dimensionless; conducting the comprehensive weighting method to determine a comprehensive weight for the above dimensionless evaluation indexes; and subjecting the above to-be-evaluated configuration schemes for the reactive power compensation device to comprehensive evaluation based on the fuzzy comprehensive evaluation method. According to the technical scheme of the invention, the application comprehensive benefits of different types of reactive power compensation devices in the power transmission and distribution system are measured and calculated. In this way, a scientific decision basis is provided for the reactive power investment of all market participants. Meanwhile, the planning and the constructing of the reactive power compensation device can be effectively guided. Therefore, the optimized utilization of reactive power sources on the power grid side can be realized.
Owner:STATE GRID TIANJIN ELECTRIC POWER +1

Method for preparing metal aluminum through microwave chlorination of coal ash

Disclosed is a method for preparing metal aluminum through microwave chlorination of coal ash. The method specifically comprises the following steps that carbon is added into the high-aluminum coal ash, the carbon and the coal ash are mixed evenly, and chlorine is led in; heating is conducted for 5-60 min through a microwave fluidized bed to 300-1200 DEG C, and constant temperature is kept for 10-60 min; the high-aluminum coal ash is fully decomposed, and various chlorinated mixed gases containing aluminum chloride are obtained; then through purification and rectification, aluminum chloride anhydrous with the purity being 99% or above is obtained; a sodium hydroxide solution is added to the aluminum chloride anhydrous to obtain an intermediate product, and through precipitation, filtration and solid-liquid separation, aluminum hydroxide precipitates and a sodium chloride solution are obtained; aluminum hydroxide is precipitated, calcination is conducted at the temperature of 800-1200 DEG C, and aluminum oxide is generated through decomposition; and the aluminum oxide is electrolyzed to obtain the metal aluminum. According to the method, the technological process is simple, and a clean technology with low energy consumption is achieved. Chlorine and sodium hydroxide generated by a system are both recycled, and effective full element separation utilization can also be achieved. No discharging of waste water or waste acid or waste alkali liquor occurs in the system, and zero discharging of three wastes is achieved basically.
Owner:NORTHEASTERN UNIV

Preparation technology and application of porous defect carbon material derived from petroleum coke

The invention belongs to the field of resource utilization of wastes and preparation of catalytic materials and discloses a preparation technology of a porous defect carbon material derived from petroleum coke and application of the porous defect carbon material to a catalytic oxidation desulphurization reaction process of diesel oil. According to the porous defect carbon material, the petroleum coke is used as a raw material, and urea, melamine or biuret and the like are used as a pore-forming agent; then a multi-step high-temperature calcination and activation process is carried out to realize successful preparation of the porous defect carbon material. The porous defect carbon material prepared by the preparation technology has abundant active sites and the surface of the material contains a lot of oxygen-containing functional groups; and the porous defect carbon material has a mesoporous structure and is an excellent catalyst which is used as active molecular oxygen to oxidize andremove aromatic sulfides including dibenzothiophene and the like in the diesel oil. The porous defect carbon material is used as a metal-free catalyst and can be dispersed relatively well in a catalysis process; and the porous defect carbon material has excellent catalytic activity, selectivity and recycling performance.
Owner:JIANGSU UNIV
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