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293results about How to "Increase support" patented technology

Piston rolling friction or suspension friction method and anti-abrasion piston device implementing method

The invention relates to the field of machinery, in particular to a piston rolling friction or suspension friction method and an anti-abrasion piston device implementing the method. The anti-abrasion piston device comprises a piston, friction bodies, a cylinder body and a friction body supporting piece, wherein the friction bodies comprise rolling bodies and / or suspension bodies; the friction body supporting piece and the cylinder body are split, or connected in a splitting manner, or integrated, or the friction body supporting piece and the piston are split, or connected in a splitting manner, or integrated; the piston and the friction bodies are arranged in the cylinder body; and the friction bodies support the piston and the cylinder body to make rolling friction or suspension friction reciprocating motion. The original structure of sliding friction between the piston and the cylinder body is changed by equipment, and the sliding friction is changed into rolling friction or suspension friction, so that the anti-abrasion piston device is simple in structure, high in strength, high in space utilization efficiency, reliable in performance, high in manufacturability, ease to process and manufacture, and long in service life.
Owner:刘素华

Fault locating method and system based on multilayer evaluation model

The invention discloses a fault locating method based on a multilayer evaluation model. The method comprises the steps of: firstly determining a to-be-detected fault type and a fault symptom for precisely and effectively reflecting the running status of a transformer, and determining the weight of each fault type by using an association rule and a set-pair analysis; then, building a DBN (Deep Belief Network) model to perform feature extraction and classification to multidimensional data of the fault; and at last, comprehensively assessing the existing diagnosis result by using the D-S evidencetheory, so as to enhance the support strength of the common target, weaken the influence of the divergence target, and greatly reduce the uncertainty of the diagnosis result. The method provided by the invention mainly aims at the quantity of state of the transformer to monitor and diagnose in time; the state evaluation of the transformer is regarded as a multi-attribute decision-making problem;a double-layer fault locating model under two indexes is built; the accuracy of the weight is improved by using the set-pair analysis and the association rule; the fault is recognized by using the D-Sevidence theory and the deep belief network; and, the accuracy of the fault recognition is improved.
Owner:WUHAN UNIV

Resource scheduling method and device based on Kubernetes system

PendingCN110515704AThe Science of Preemptive Scheduling StrategiesModerate preemptive scheduling strategyResource allocationSoftware simulation/interpretation/emulationResource utilizationLow resource
The invention discloses a resource scheduling method, device and equipment based on a Kubernetes system and a computer readable storage medium, which are applied to a scheduler. The resource scheduling method comprises the following steps: when the Kubernetes system schedules a target container, judging whether cluster resources are smaller than computing resources of the target container or not;if so, calling the operation level of each container in the data storage in the management node of the Kubernetes system; wherein the operation level of each container is determined according to the calculation resource utilization rate and the operation duration of each container; and according to the operation level of each container, preempting the current computing resource of the container with the lowest operation level in each container, and scheduling the target container to a computing node corresponding to the current computing resource. According to the method, the device, the equipment and the computer readable storage medium provided by the invention, a more scientific and reasonable resource preemption scheduling strategy is provided when cluster resources are insufficient.
Owner:GUANGDONG INSPUR BIG DATA RES CO LTD

Active power coordination control method and system of an optical storage power station

The invention provides an active power coordination control method and system of an optical storage power station. The method comprises the following steps: calculating the reference value of the active power of the optical storage power station according to the frequency of the optical storage power station, the frequency change rate and the active power control instruction of the automatic generation of the electric network; determining The active power coordination control mode of optical storage power station according to the frequency of the optical storage power station. Based on the active power reference value and the active power coordination control mode of the photovoltaic storage power station, obtaining the active power control commands of the photovoltaic unit and the energystorage unit, and carrying out the active power regulation of the photovoltaic storage power station according to the active power control commands of the photovoltaic unit and the energy storage unit. The technical proposal provided by the invention improves the power grid stability support strength by configuring an energy storage system, considering the use of an energy storage unit with maximum capacity, and carrying out centralized active power coordination control on the photovoltaic unit and the energy storage unit.
Owner:STATE GRID QINGHAI ELECTRIC POWER +2

A control method and system for photovoltaic power station participating in system frequency modulation

The invention provides a control method and system for a photovoltaic power station participating in system frequency modulation, wherein the method comprises the following steps: calculating an active power regulation amount of a photovoltaic power station according to grid-connected point frequency and a frequency change rate of a photovoltaic power station; correcting the initial command valueof active power of photovoltaic power station according to the active power regulation quantity of photovoltaic power station to obtain the final reference value of active power of photovoltaic powerstation; and based on the final active power reference value of the photovoltaic power station, controlling the active power of the grid-connected point of the photovoltaic power station. The technical scheme provided by the invention judges the disturbance magnitude of the power network through the frequency change rate, and adopts the emergency control to immediately increase or decrease different fixed active powers to regulate the active powers of the photovoltaic power station, thereby strengthening the support strength of the power network frequency, reducing the frequency fluctuation amplitude of the power network and increasing the stability of the power network.
Owner:CHINA ELECTRIC POWER RES INST +3

Photovoltaic power station frequency regulation method and system

The present invention provides a photovoltaic power station frequency regulation method and system. The method comprises the steps of calculating the active output regulation amount of a photovoltaic power station according to the grid-connected point frequency of the photovoltaic power station, and correcting an active power reference value of the photovoltaic power station according to the active output regulation amount; regulating the active power of the photovoltaic power station; real-timely acquiring the grid-connected point frequency of the photovoltaic power station, regulating the active power reference value of the photovoltaic power station according to the grid-connected point frequency, and carrying out the frequency hysteresis regulation on a power grid. The system comprises an active power regulation module and a frequency hysteresis regulation module. Compared with the prior art, the photovoltaic power station frequency regulation method and the photovoltaic power station frequency regulation system provided by the present invention have larger active power-frequency support strength to the power grid than a conventional frequency droop control method, and are suitable for the power grid having higher photovoltaic power generation permeability by arranging a hysteresis point on the basis of an original single threshold and always keeping the active power largest strength support before the power grid frequency returns to the hysteresis point.
Owner:CHINA ELECTRIC POWER RES INST +1

Full-redundancy high-reliability wind and light complementary power supply system

The invention provides a high-reliability wind and light complementary communication power supply system in a full redundancy form in order to overcome the defects of high fault rate and poor maintaining convenience for the existing wind and light complementary system. Aiming at the power supply part, a novel rectification load discharger is designed; the reliability of the power supply part is improved by adopting a wind and light general power supply module; the communication reliability is ensured by adopting a CAN (controller area network) and a 485 two-stage ring bus; the reliability of the control part is ensured by adopting a mutual monitoring and controlling mode of a central processing unit and a GPRS (general packet radio service) monitoring and controlling communication module, thus all the power supply part, the communication part and the control part in the system have redundancy characteristics. The system not only can detect the fault in real time, but also can process effectively according to the existent fault; each individual part in the power supply system of electric equipment can not influence the operation of the whole system because of invalid fault, the system recombines and controls again according to the grade of the fault, or the origional performances are kept maximally at the cost of the corresponding performance loss, and when the fault reaches certain limit, external alarming is carried out to inform proffesional staff of overhaul.
Owner:马勇

Micro-nano structure hydroxyapatite and preparing method and application thereof

The invention discloses micro-nano structure hydroxyapatite and a preparing method and application thereof. The hydroxyapatite is of a microsphere structure, and the surfaces of the hydroxyapatite microspheres are provided with nanorods. The specific surface area of the hydroxyapatite microspheres with the surfaces provided with the nanorods is larger than or equal to 192 m<2> / g, the spherical diameter of the microspheres ranges from 3 microns to 5 microns, the diameter of the nanorods ranges from 5 nm to 15 nm, and the length of the nanorods ranges from10 nm to 100 nm. The preparing method includes the steps that after a calcium solution and a phosphorus solution are stirred and mixed according to the molar ratio (please see the specification) of 1:(1.4-1.8), adjustment is carried out through hydrochloric acid or nitric acid to obtain clear liquid; after a chelating agent and urea are added into the clear liquid, a surface active agent is added into the obtained mixed liquid to obtain precursor liquid; the precursor liquid is reacted at the temperature of 80-95 DEG C and subjected to standing and aging, and reaction liquid with sediments is obtained; the reaction liquid with the sediments is subjected to solid-liquid separation and washing treatment, and a target product is obtained. The micro-nano structure hydroxyapatite can be widely used for governing and repairing soil polluted by heavy metal.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Tunnel bridge construction temporary support equipment

ActiveCN109356632ARealize the function of automatic adjustment of temporary supportEasy to operateBridge erection/assemblyMine roof supportsHydraulic cylinderArchitectural engineering
The invention relates to tunnel bridge construction temporary support equipment comprising a bottom plate. Two fixing devices capable of realizing limiting are symmetrically mounted at the front end and the rear end of the bottom plate, lifting hydraulic cylinders are symmetrically mounted at the upper end of the bottom plate, and the top ends of the lifting hydraulic cylinders are mounted on a positioning plate through flanges; two adjusting devices are symmetrically mounted at the upper end of the positioning plate, an adjusting column is mounted between the two adjusting devices, and a supporting device is mounted at the upper end of the adjusting column; and a technology for tunnel bridge temporary support is completed through mutual cooperation of the fixing devices, the adjusting devices, the adjusting column and the supporting device. According to the tunnel bridge construction temporary support equipment, the difficult problems that in the existing tunnel bridge construction temporary support building process, materials such as concrete and steel frames need to be manually processed into temporary supports, the consumed time is long, the project progress is affected, the corresponding temporary supports need to be constructed according to construction faces of different structures, the labor intensity is high, operation is complex, sources are wasted, and the working efficiency is low can be solved, and the function of automatically adjusting the temporary supports can be achieved.
Owner:江苏锡沂钢模有限公司

Anti-toppling clamping and supporting device for vegetation planting in garden

The invention relates to the technical field of clamping and fixing of vegetation in a garden, in particular to an anti-toppling clamping and supporting device for vegetation planting in a garden. The anti-toppling clamping and supporting device for vegetation planting in a garden comprises a clamping mechanism, a supporting mechanism, an abutting mechanism, a connecting mechanism, a locking mechanism and a stabilizing mechanism. Under the action of the clamping mechanism and the locking mechanism, trees needing to be supported and fixed can be conveniently clamped, subsequent quick disassembly and separation are facilitated, and trees of different sizes can be conveniently clamped and fixed. Under the action of the connecting mechanism, mounting and subsequent disassembly of the supporting mechanism and the clamping mechanism are facilitated, and subsequent carrying is facilitated. Under the action of the supporting mechanism, the clamping mechanism can be supported and an effect of supporting and protecting trees is achieved. Under the action of the stabilizing mechanism, the supporting mechanism and the ground can be stably and firmly supported, and a situation that trees tilt due to sliding of the supporting mechanism is prevented. Under the action of the abutting mechanism, the supporting mechanism can slide in one direction and trees can be supported and protected while grow.
Owner:福建省五洲建设集团有限公司

Frame structure for asphalt road construction

The invention relates to a frame structure for asphalt road construction. The frame structure for asphalt road construction comprises supporting units, positioning plates, connecting blocks, rotatingrods, locking supporting plates and locking clamping pins. The supporting units are evenly distributed in the transverse direction, and the positioning plates are connected between the every two adjacent supporting units. The connecting blocks are installed on the front side surfaces of the positioning plates. The connecting blocks penetrate through the supporting units. The locking supporting plates are located at the lower ends of the front sides of the supporting units. The rotating rods are connected between the connecting blocks and the locking supporting plates through pin shafts, and the locking clamping pins are connected to the locking supporting plates in a sliding fit mode. According to the frame structure for asphalt road construction, the problems that when a wooden frame of an existing asphalt road blocks the outer end of the road, the side, attached to the road, of the wooden frame is prone to skewing due to the fact that the support strength of the wooden frame to the road is low, and the wooden frame is not stable, installation and removal steps of the wooden frame are complicated and hand labor is increased due to the fact that the wooden frame is not firmly locked on the ground of the outside of the road are solved.
Owner:HUBEI IND CONSTR GRP

Outdoor rapidly-installed antenna rack for electronic information engineering

The invention discloses an outdoor rapidly-installed antenna rack for electronic information engineering. The outdoor rapidly-installed antenna rack comprises a base, a support rod, a connection rod and an antenna installation plate, wherein installation holes are formed in two ends of the base, a charging interface is arranged in one side of the base, a guide rail is arranged at the top of the base and is connected with a sliding block in a sliding way, the guide rail is electrically connected with a miniature motor in the base, the support rod is fixedly connected with the top of the slidingblock, fixed rods are arranged at two sides of the top of the support rod, one end of the connection rod and the fixed rods are connected by dual-head bolts, a rotation support is fixedly connected with the bottom of the antenna installation plate, a bottom end of the rotation support is in threaded connection with the other end of the connection rod, the connection rod and the support rod are oftelescopic structures, the height is convenient and free to adjust, the free rotation adjustment angle of the support rod can be automatic by the sliding block of the support rod at the guide rail, and the operation labor intensity of a worker is reduced; the fixed rods are arranged in two directions of the support rod, and the installation range is expanded; and by the outdoor rapidly-installedantenna rack, multi-angle installation and adjustment of the antenna can be achieved.
Owner:合肥锟特奇科技有限公司

Power grid voltage quality monitoring data collecting method and system

The invention provides a power grid voltage quality monitoring data collecting method and system; the method comprises the following steps: configuring parameters of a communication terminal, a terminal monitor, a data collecting point, a data collecting server, and a data collecting client terminal; running the data collecting server, communicating the terminal monitor with the data collecting server; running the data collecting client terminal, starting automatic collection of voltage quality statistic data; if the automatic collection of the voltage quality statistic data is failed and the failure number of the automatic collection reaches a preset number, aborting the automatic collection of the data, displaying detailed information of the automatic collection failure, and implementing supplementary collection of the voltage quality statistic data. The system comprises a parameter configuring unit, a data collecting server running unit, a data automatic collecting unit, a manual data supplementary collecting unit, a soft data supplementary collecting unit and a data storage unit. The power grid voltage quality monitoring data collecting method and system achieve the effective collection of the power grid voltage quality data, and ensures the data integrity.
Owner:NORTHEASTERN UNIV

Supporting protective equipment for foundation pit engineering and application method thereof

The invention discloses supporting protective equipment for foundation pit engineering and an application method thereof. The supporting protective equipment for foundation pit engineering comprises abase and a pillar fixedly mounted in the middle of the upper end face of the base, as well as four support plates, namely a first support plate, a second support plate, a third support plate and a fourth support plate; first support mechanisms in two groups are fixedly mounted between the first support plate and the pillar; a first hydraulic cylinder is arranged between the two groups of first support mechanisms; second support mechanisms in two groups are fixedly mounted between the second support and the pillar; a second hydraulic cylinder is arranged between the two second support mechanisms; third support mechanisms are fixedly mounted between the third support plate and the pillar; fourth support mechanisms are fixedly mounted between the fourth support plate and the pillar. The supporting protective equipment for foundation pit engineering is novel in structural design and convenient to use, can provide supporting of high intensity for the wall of a foundation pit, has mechanical properties fully meeting the supporting requirements of the foundation pot, and has higher safety.
Owner:HUAIYIN INSTITUTE OF TECHNOLOGY
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