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800results about How to "Avoid investment" patented technology

Cool-heat-electricity cogeneration type microgrid optimal configuration method

The invention discloses a cool-heat-electricity cogeneration type microgrid optimal configuration method. The method includes the steps of system level optimization and equipment level optimization. Safe and stable operation of electricity, heat and cool generation systems of a system is used as the constraint condition of system level optimization, load data, electrovalence policies and fuel cost in a microgrid region to be planned are used as input, energy supply equipment categories are selected on the basis of load data analysis, the lowest full life circle cost of a microgrid is used as an objective function, the objective function is solved by the adoption of a mixed integer programming approach, and then equipment capacity in the microgrid is acquired. Equipment level optimization is based on a cool-heat-electricity cogeneration equipment scheme library, the capacity value ranges of equipment are set on the basis of the result of system level optimization, solution is calculated in a weighted mode, and then the optimal configuration scheme of the system is obtained. According to the method, capacity of the generation systems can be balanced, utilization efficiency of primary energy and the utilization rate of the equipment are improved, unnecessary investment is avoided, meanwhile, overall economy of the system is improved, and annual operation cost is reduced.
Owner:SOUTHEAST UNIV

Method for pre-pumping coal roadway stripe gas of single soft protruded coal seam of unexploited area

The invention provides a method for pre-pumping coal roadway stripe gas of a single soft protruded coal seam of an unexploited area and relates to the technical field of gas pumping. Through the method, outburst removal of the area with a single soft hypotonic protruded coal seam coal roadway stripe can be achieved. The method for pre-pumping the coal roadway stripe gas of the single soft protruded coal seam of the unexploited area comprises building a concordant layer horizontal well which is 3-6m away from the coal seam from the ground to a top plate and a base plate of the single soft protruded coal seam of the unexploited area, performing segmented fracturing after oriented perforating, enabling top plate and base plate rock terrane where coal seam gas is sealed and stored originally to be transformed into a pumping liberation layer with developed fracture networks, enabling the pumping liberation layer to be communicated with the coal seam in a large-area mode through the fracture networks, performing decompression and aerogenesis by dewatering, determining whether to perform negative pressure pumping according to water production conditions, enabling the coal seam gas to be desorbed and diffused continuously, and pumping the gas massively by pumping a horizontal well opening in the liberation layer. By pumping the gas massively, the outburst prevention index in the coal roadway stripe can be reduced to below the safety standard in the outburst prevention rules, and safe and speedy drivage is achieved.
Owner:HENAN COAL CHEM IND GROUP INST

Crystal direction finder for directly measuring deflecting angle in crystal orientation and measurement method thereof

The invention provides a crystal direction finder for directly measuring deflecting angle in crystal orientation, which is characterized in that one side of an objective table is connected with an X-ray generator, and the other side is connected with an X-ray detector, and an objective table is provided with a horizontal revolving bench, and the horizontal revolving stage can revolve a crystal to be measured parallely to the light propagation surface, and the center of the horizontal revolving bench is fixed with a vertical revolving stage, and the vertical revolving stage can revolve the crystal to be measured on the plane which is perpendicular to the light propagation surface; the crystal direction finder is used for directly finding the intersection line of the machined surface and the crystal face, and an angle measuring instrument of the objective table can be used for directly reading the deflecting angle beta in crystal orientation. The invention overcomes the defects that the present X-ray crystal direction finder has a complex operating method, wherein, the measurement process needs multiple times of rotations, dismountings and fixations of the detected crystal with low measurement efficiency, which is easy to induce cumulative errors and X-ray leakage.
Owner:YUNNAN KIRO CH PHOTONICS

Arsenic removal material by adsorption of electrochemistry strengthened nano ferro-manganese loaded carbon fiberand arsenic removal method by using same

The invention discloses arsenic removal material by adsorption of electrochemistry strengthened carbon fiber loaded nano ferro-manganese and an arsenic removal method by using the material. The material comprises a substrate material and nano ferro-manganese oxidesloaded on the substrate material through electrochemistry and electro-deposition; the substrate material can be carbon fiber yarns, carbon fiber felts or graphite carbon fiber felts, and the shape of the substrate material is cylindrical or flat-shaped; and when a three-dimensional electrode is used, the substrate material is activecarbon. The arsenic removal material is prepared by performing ferro-manganese metal salt surface electro-deposition on the substrate material by electrifying. The arsenic removal method comprises the following steps of: carrying out coupling electro-absorption in the process of arsenic removal by chemical absorption, and strengthening the arsenic removal effect by using the electro-absorption action of a charging capacitor in the absorption process; applying reverse current to facilitate arsenic desorption on a surface of ferro-manganese hydrated oxide in a regeneration process, and simultaneously applying high voltage to perform hydrolysis, hydrogen generation and oxygen evolution so as to facilitate activity regeneration of the ferro-manganese oxide. With the adoption of the material and the method, the high absorption effect and the quick regeneration capability can be achieved.
Owner:TSINGHUA UNIV

Automatic goods fetching system for terminal express delivery and implementation method thereof

The invention discloses an automatic goods fetching system for terminal express delivery and an implementation method thereof. The automatic goods fetching system for terminal express delivery comprises a box body, the box body is divided into three storage boxes at least, a microcomputer system is arranged in the box body, the box body is provided with a USB (universal serial bus) interface or a wireless communication network, a keyboard, a red prompting light, a green prompting light, a display screen, a power source, a voice prompting device and the like, one side of the bottom of the box body is provided with a weighing device, and the top of the box body is provided with a camera; the structure of the automatic goods fetching device for express is in a no-interlayer design; and the implementation method based on the device is introduced in detail. The automatic goods fetching device for express is combined with technologies of bar codes, short message feedback, password memory and identification and the like, entire intact operation of an express enterprise is realized, and the problems that time conflict exists between a courier and a customer and goods safety in terminal express delivery can not be guaranteed can be effectively solved, so that the service quality and the entire benefit of the enterprise are improved.
Owner:SHANDONG JIAOTONG UNIV +4

Austenitic stainless steel for urban rail vehicle face plates and manufacturing method of austenitic stainless steel

The invention discloses austenitic stainless steel for urban rail vehicle face plates and a manufacturing method of the austenitic stainless steel. The austenitic stainless steel comprises the following chemical compositions inpercentage by weight: less than 0.03% of C, 0.75-1.0% of Si, 6.5-8.0% of Mn, 16.0-17.5% of Cr, 3.0-4.5% of Ni, 0.15-0.25% of N, 0.5-1.0% of Cu, 0.02-0.05% of Ce, no greater than 0.040% of P, no greater than 0.03% of S, and the balance of Fe and inevitable impurities; the manufacturing method of the austenitic stainless steel comprises the following steps: through the operations of smelting, continuous casting, refining, tombarthite mixture block feeding, and soft stirring, continuous casting slabs are obtained by continuous casting, and the continuous casting slabs are heated; after hot rolling, cooling, reeling, air cooling, solution treating, shot blasting, acid cleaning, cold rolling and annealing acid cleaning are conducted, the finished product austenitic stainless steel is manufactured. According to the austenitic stainless steel for the urban rail vehicle face plates and the manufacturing method of the austenitic stainless steel, the oxidation of the edge part grain boundary caused by overheating of the slab edge part can be avoided; in the process of heating, a layer of dense chromium oxidation film with high adhesion is formed on the surface, the surface quality of the continuous casting slabs is protected, and the guarantee about surface quality control of stainless steel material used for the urban rail vehicle face plates can be provided.
Owner:BAOSTEEL STAINLESS STEEL

Sectionalized construction method of deep and large foundation pit

InactiveCN103510520AIncrease stiffnessOptimizing the supporting structure systemExcavationsEngineeringBuilding construction
The invention provides a sectionalized construction method of a deep and large foundation pit, and relates to the technical field of engineering construction of deep and large foundation pits. According to an existing construction method of the deep and large foundation pit, due to the negative factors that the excavation area of the foundation pit is overlarge, and the flat shape is irregular, or a lot of important buildings exist in the influence range of excavation of the foundation pit, the problems that influence of construction of the deep and large foundation pit on the surroundings is excessively high, and the construction period is long are caused. The sectionalized construction method of the deep and large foundation pit comprises the steps of (1) selecting the sectionalized construction method according to the engineering geological conditions of a construction field of the deep and large foundation pit, the nature of the foundation pit and the surroundings of the foundation pit; (2) dividing the deep and large foundation pit into a first foundation pit body, a second foundation pit body and a third foundation pit body, wherein the first foundation pit body, the second foundation pit body and the third foundation pit body are arranged in sequence, and the first foundation pit body and the third foundation pit body are arranged on the two sides of the deep and large foundation pit, and are not adjacent to each other.
Owner:上海市建工设计研究总院有限公司

Ultra-thin broad-width wear-resistant steel plate and method for producing steel plate in large compression ratio

The invention discloses an ultra-thin broad-width wear-resistant steel plate and a method for producing the steel plate in large compression ratio. The method comprises the following steps: a continuous casting billet is heated, wherein the heating temperature is between 1,180 DEG C and 1,250 DEG C, and the soaking time is not less than 40 min; rough rolling and finish rolling are performed on the heated continuous casting billet, so that the steel plate with the thickness of 5-8 mm and the width of 3,000-4,000 mm is obtained, in coarse rolling, under the condition that the temperature is higher than 1,110 DEG C, perfect re-crystallization rolling is performed, and the thickness of the continuous casting billet to be heated is 5-10 times bigger than that of a finished product; in the finish rolling, initial rolling temperature is more than or equal to 1,000 DEG C, the finish rolling temperature is more than or equal to 800 DEG C, the rolling is performed at 5-11 gates, and the ratio of the thickness of the continuous casting billet to the thickness of the steel plate is 30-35; air cooling is performed on the rolled steel plate; quenching treatment and tempering treatment are performed on the cooled steel plate, in the quenching treatment, the steel plate is heated to Ac3+(0-70) DEG C and between 860-950 DEG C, heat preservation is performed for 5-20 min, water quenching is performed, and Ac3 refers to the temperature after austenitic transformation during the heating; in the tempering treatment, the steel plate is heated to 150-350 DEG C, heat preservation is performed for 10-20 min, and then air cooling is performed. The method is high in processing efficiency, and the product with HBW330-510 grade can be obtained.
Owner:LAIWU STEEL YINSHAN SECTION CO LTD

Rotating-drum method based full flow processing system and rotating-drum method based full flow processing technique

The invention discloses a rotating-drum method based full flow processing system and a rotating-drum method based full flow processing technique. The system mainly comprises a tipping device, a slagging-off device, a rotating drum device, a finished-product conveying device, a vibratory separation device, a bucket-type lifting device, an online magnetic separation device, a storage device, a dust removal device, a water system device and an electrical control device. The tipping device and the slagging-off device are used for assisted feeding. The rotating drum device is used for core processing of steel slags. The rotating-drum method based full flow processing system and the rotating-drum method based full flow processing technique have the advantages that rotating-drum processing rate of the steel slags can be increased remarkably, slag feeding safety and reliability of a rotating drum can be improved, and travelling crane occupancy rate can be reduced; the steel slags processed by the rotating drum can be subjected to online separation and initial magnetic separation; materials can be stored in a overhead bunker, and environmental pollution and surplus input both caused by secondary and multiple loading and unloading of finished slags are avoided.
Owner:SHANGHAI BAOSTEEL ENERGY TECH
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