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64results about How to "Limited volume" patented technology

Emergency traction system applied to urban mass transit

InactiveCN102303536ATroubleshoot outagesReduce the chance of backlog retentionSpeed controllerElectrical storage systemTraction systemLow voltage
The invention relates to an emergency traction system applied to urban mass transit. The system comprises a power supply network, an auxiliary system of an urban mass vehicle, a main traction invertor, a traction motor, a power conversion device, an energy storage component and a master controller; the output end of the power supply network is connected with the power conversion device, the main traction invertor and the auxiliary system of the urban mass vehicle respectively; one end of the energy storage component is connected with the high-voltage side of the power supply network, and one end of the energy storage component is connected with the power supply network; the high-voltage side of the power conversion device is connected with the main traction invertor and the auxiliary system of the urban mass vehicle, and the low-voltage side of the power conversion device is connected with the energy storage component; and the traction motor is connected with the output end of the main traction invertor, and drives a train to run; and the power supply network, the auxiliary system of the urban mass vehicle, the main traction invertor, the traction motor, the power conversion device and the energy storage component are connected with the master controller through a communication bus. The system is suitable for high voltage grades, has a smaller volume and long service life, is high in reliability, and wide in an application range, and can be controlled flexibly, the traction load and distance are larger; and time of return on investment is short.
Owner:TONGJI UNIV

MOF-derived porous carbon box loaded Co<3>V<2>O<8> composite negative electrode material and preparation method and application thereof

The present invention provides a method for preparing a metal-organic framework compound by using a Co-containing metal-organic framework compound (Metal-Organic Framework, the invention relates to acomposite material formed by loading one-dimensional rod-like Co3V2O8 on a porous carbon box (PCB) obtained by MOF pyrolysis, a preparation method of the composite material and an application of the composite material in a lithium ion battery negative electrode material. The preparation method disclosed by the invention comprises the following steps: preparing a zeolite imidazate skeleton-67 (Zeolitic Imidazolate Frameworks-67, ZIF-67) with a controllable morphology; the preparation method comprises the following steps: taking Co3V2O8 as a template precursor, carrying out high-temperature pyrolysis, carrying out acid pickling to remove Co, carrying out ultrasonic dispersion on the obtained porous carbon box in a solution, carrying out self-assembly by taking the porous carbon box as an internal skeleton through a hydrothermal process, and adhering Co3V2O8 to the surface of the porous carbon box and embedding Co3V2O8 into pores to form the composite material. The whole experiment process does not generate toxic and dangerous substances, the operation is simple and easy to implement, the Co3V2O8-coated PCB has a high specific surface area and a porous structure, the multiplying powerand the cycle performance of the lithium ion battery are effectively improved through the synergistic effect of the composite material, and the Co3V2O8-coated PCB is an excellent lithium ion batterynegative electrode material.
Owner:UNIV OF JINAN

Method and equipment for defining supporting structure for three-dimensional object to be made through stereolithography

The invention is a computer-implemented method for defining a supporting structure (2) for a three-dimensional object (1) to be produced through a stereolithography process. The method comprises the following operations: defining a first surface (3) to be supported of the three-dimensional object (1) and a second surface (4) facing the first surface (3); defining elongated supporting elements (5) between the surfaces (3, 4); defining pairs of supporting elements (5); for each pair of supporting elements (5), defining an elongated reinforcing element (6) connecting the two supporting elements (5) of the pair. The definition of the pairs of supporting elements (5) comprises the following operations: defining a reference point (7) of each supporting element (5); defining a connected acyclic graph (8) having as vertices the reference points (7); for each edge (9) of the graph, defining one pair of supporting elements comprising the two supporting elements (5) corresponding to the ends of the edge (9). The definition of the pairs of supporting elements (5) comprises the further operation of defining an additional pair of supporting elements for each vertex having order 1 of the connected acyclic graph (8), the additional pair comprising a first supporting element (5) corresponding to the vertex having order 1 and a second supporting element (5) not connected to the first supporting element (5) through any edge (9).
Owner:DWS SRL

Coke-burning method for hydrocarbon conversion catalyst regeneration and structure of coke-burning area of regenerator

ActiveCN102218353AReduce the risk of burning out the inner screen due to overheatingThe overall thickness is thinCatalyst regeneration/reactivationChemistryTemperature jump
The invention discloses a coke-burning method for hydrocarbon conversion catalyst regeneration and a structure of a coke-burning area of a regenerator. The invention solves the disadvantage of the temperature jump risk in a coke-burning area of a hydrocarbon conversion catalyst in the prior art. The method comprises the following steps: allowing a catalyst to be regenerated to enter a coke-burning area of a radial catalyst moving bed under gravity, allowing the catalyst to contact an oxygen-containing regenerating gas and burning out coke deposits on the catalyst, and allowing the catalyst to enter a chlorine oxidation area, wherein the coke-burning area of the catalyst moving bed comprises an inner screen and an outer screen; the lower diameter is larger than the upper diameter of the outer screen; the upper and the lower parts of the outer screen are connected by a conical structure; the outer screen with different diameters and the inner screen forms, from up to down, an upper quick-burning section, an intermediate transition section, and a lower overheating section of the coke-burning area; and the thickness ratio of the catalyst bed layers of the quick-burning section and the overheating section is 0.25-1, and the height ratio is 1-8.
Owner:CHINA PETROCHEMICAL CORP +1

Intelligent electric power inspection robot with function of advancing in narrow space

The invention discloses an intelligent electric power inspection robot with the function of advancing in a narrow space. The robot comprises a working barrel. A mounting platform is arranged at the top end of the working barrel, traveling wheel assemblies are symmetrically arranged on the front and rear of the mounting platform. Each traveling wheel assembly comprises a foot plate, a bracket and a driving motor, and the foot plate and the bracket are fixedly connected to the top end of the mounting platform respectively, a first rotating shaft is rotationally connected to the foot plate, and one end of the first rotating shaft is sleeved with a traveling wheel matched with a track cable. According to the intelligent electric power inspection robot with the function of advancing in the narrow space, a mounting or dismounting structure between each traveling wheel assembly and the track cable is very simple, the whole robot can be mounted or dismounted only by completing the tightening or loosening work of a first fastening nut and a second fastening nut and completing the lifting work of the vertical plate, and operation is very convenient to carry out; and the whole mounting or dismounting structure is limited on the mounting platform of the working barrel and is telescopically controlled, so that the volume of the whole robot can be effectively limited, and the whole robot can conveniently move and work in a narrow cable tunnel.
Owner:程秀珍

Overweight glass door window pulling system based on spring counterweight

The invention provides an overweight glass door window pulling system based on spring counterweight. The overweight glass door window pulling system comprises a movable glass sash and moving verticalcolumns which are arranged on one side or the two sides of the movable glass sash and drive the movable glass sash to move up and down; the moving vertical columns comprise sectional material structures, a plurality of counterweight springs and spring force aggregating structures; and the elastic output end of each counterweight spring is fixedly connected to the corresponding spring force aggregating structure, and the spring force aggregating structures are vertically and slidably mounted into the sectional material structures and connected to the movable glass sash in a transmission mode. The multiple counterweight springs simultaneously share the weight of the overweight glass sash, thus gravity is dispersed, the overweight door window sash is pulled, meanwhile, the risk of sudden lowering of the glass sash due to breaking of the single spring is avoided, and thus safety is achieved; and in addition, 0.25-0.4 mm constant-force volute springs are adopted for counterweight, the needof overweight pulling is met under the premise of ensuring the adequate service life, and the advantages of high bearing capacity, safety, long service life and energy saving are achieved.
Owner:FOSHAN MAG HOME TECH LTD

Vehicular integral type shell structure ballasting body pile-loading method

PendingCN110258674AEasy to transportConvenient static load testFoundation testingButtressEngineering
The invention relates to a vehicular integral type shell structure ballasting body pile-loading method. The vehicular integral type shell structure ballasting body pile-loading method is characterized by comprising the following steps that a, the plane position of a static load test point is determined, the static load test point is used as the center to process a static load foundation; and a steel structural buttress is installed; b, a shell pile-loading body bottom structure is installed, so that a vehicular main beam platform center and the test point are in center coincidence, and a vehicular main beam platform and an integral type steel structural platform jointly form a bottom structure of a shell pile-loading body; c, side plates are installed on the outer edges of the bottom structure; d, a building waterproof layer is built or seepage-proofing water proof materials are installed; e, vertical and horizontal steel plates/sectional materials or steel structural plates are installed; f, a steel structural scissor support and a waist beam are installed; g, the shell pile-loading body is filled until the requirement for the oil-loading capacity is met; h, detection equipment is installed for detecting; i, ballasts are removed, and the shell pile-loading body is moved to a next point; j, the above processes are repeated until the whole static load test project is completed; and k, the shell pile-loading body is removed.
Owner:四川中亿创新重型装备有限公司
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