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31results about How to "Reduce loss costs" patented technology

Multi-type distributed power supply optimal configuration method based on immune particle swarm algorithm

The invention discloses a multi-type distributed power supply optimal configuration method based on an immune particle swarm algorithm. The multi-type distributed power supply optimal configuration method comprises the following steps of: the step 1: inputting parameter data of an optimized configuration target function, and initializing parameters; the step 2: generating initial positions xi and speeds vi of the M particles by logistic regression analysis mapping to form an initial particle group P0; the step 3: calling a load flow calculation program to calculate the adaptive value F of the particles in the current particle group P0; the step 4: determining whether an algorithm result meets the calculation precision D or not, if yes, ending the steps and outputting the result, or else, performing the next step; the step 5: updating the local and global optimal solutions and updating the position and speed of the particles according to the following formula as shown in the description; the step 6: generating N new particles by logistic regression analysis mapping to form a new N+M particle population; and the step 7: selecting N proper particles through adoption of a concentration selection mechanism to form a new particle group P, and returning to the step 3 for recalculation. The technical scheme can improve the economic benefit of power grid operation.
Owner:HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1

Power distribution network line operation efficiency evaluation method and device, and storage medium

The invention discloses a power distribution network line operation efficiency evaluation method. The method comprises the steps of calculating an optimal load of a power distribution network line andan available load of the power distribution network line according to received historical operation data; and according to the optimal load, available load, calculating a reference load level value and an actual load level value of the power distribution network line respectively according to the rated power of the power distribution network line and the actual load of the power distribution network line; the ratio of the actual load level value to the reference load level value is used as the operation efficiency of the power distribution network line; according to the operation efficiency obtained through calculation, the load value with the minimum loss cost of the power distribution network line in the ideal state is comprehensively considered, the maximum load of the power distribution network line under the standby capacity and the rated load and the actual load of the power distribution network line are considered, and the operation efficiency obtained through calculation can be more accurately evaluated. The invention also provides a power distribution network line operation efficiency evaluation device and a storage medium, which have the above beneficial effects.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

Keyboard testing system

The invention discloses a keyboard testing system, which is used for detecting the keyboard function of a mainboard. The keyboard testing system comprises a control unit, a microprocessor, a keyboard switch unit, a keyboard interface and a mainboard, wherein the control unit is used for outputting an execution command; the microprocessor is used for receiving the execution command and outputting a plurality of control signals in sequence according to the execution command; the keyboard switch unit comprises a plurality of electronic switches which are used for receiving the plurality of control signals output by the microprocessor and are conducted in sequence; the keyboard interface is connected with the plurality of electronic switches of the keyboard switch unit; the mainboard comprises a keyboard interface circuit which is connected with the plurality of electronic switches of the keyboard switch unit through the keyboard interface; and when the plurality of electronic switches in the keyboard unit are conducted in sequence, the mainboard outputs coded information of corresponding keys in sequence. By adopting the keyboard testing system, detection can be performed without manually beating all keys on a keyboard, thus the detection efficiency and the detection speed can be increased and the labor cost is saved.
Owner:SHENXUN COMP KUNSHAN

High-sealing-performance rapid pressure adjustment system and method for gas

ActiveCN110500503AImprove the technical capability of power transient testAbsorb morePipeline systemsMetallic materialsProcess engineering
The invention discloses a high-sealing-performance rapid pressure adjustment system and method for gas. The high-sealing-performance rapid pressure adjustment system for the gas is composed of a gas loop, a pressure accumulator, a pressure-stabilizing tank, a diaphragm compressor, an inflation tank, a valve, a pipeline, an instrument and the like. High-pressure process gas in the inflation tank isused for directly filling the gas loop, and a reaction gas cylinder pressure in the gas loop is rapidly increased at first; then medium-pressure process gas in the gas loop is discharged into the pressure accumulator, the pressure accumulator carries out variable-volume expansion, and the reaction gas cylinder pressure in the gas loop is rapidly reduced; and finally the pressure accumulator compresses under the pressure action of drive gas of the pressure-stabilizing tank, and low-pressure process gas is driven to enter the diaphragm compressor to be compressed and pressurized into the inflation tank. The pressure accumulator separates the process gas from the drive gas by a metal bellows diaphragm, and carries out high-sealing-performance volume compensation and pressure buffer, and thewhole pressure adjustment system is sealed by an all-metal material. The high-sealing-performance rapid pressure adjustment system and method for the gas are used for fine chemical production for gas,process treatment for electronic gas, transient test for nuclear fuel power, and the like.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Graphene conductive composite filter cloth for electric sludge dewatering equipment and manufacturing method and installing and using methods of graphene conductive composite filter cloth

The invention discloses a graphene conductive composite filter cloth for electric sludge dewatering equipment and a manufacturing method and installing and using methods of the graphene conductive composite filter cloth. The manufacturing method comprises the steps that firstly, a stably-dispersed graphene dispersion solution is prepared; secondly, a filter cloth body is soaked in the graphene dispersion solution for 6-10 h and then taken out, and the soaked filter cloth body is roasted for 6-10 h at 80-160 DEG C; or, before the filter cloth body is woven, fiber monofilaments are put into the graphene dispersion solution to be soaked for 0.5-5 h or pass through the graphene dispersion solution, graphene is attached to the fiber monofilaments, then the filter cloth body is woven, and the graphene conductive composite filter cloth is manufactured. The graphene conductive composite filter cloth is installed on an anode filter frame of plate frame type filter pressing equipment and connected with the positive electrode of a direct-current power supply and serves as an electric anode. The graphene composite is excellent in conductivity and has very high chemical and electrochemical corrosion resistance when serving as the anode material. The graphene anode material and the filter cloth body are integrated, and the structure of core assemblies of the equipment is simplified.
Owner:SHANGHAI TECHASE ENVIRONMENT PROTECTION

Handheld maintenance lamp

The invention relates to the field of lighting technology and provides a handheld maintenance lamp. The handheld maintenance lamp comprises a columnar light source support, a first LED (light emitting diode) light source assembly arranged on the outer wall of the light source support, a transparent cover arranged outside the first LED light source assembly, a protecting mesh cover covering the transparent cover, and a driving device which is arranged under the light source support and used for driving the first LED light source assembly. The light source support is axially provided with an accommodating cavity, and a vertically-retractable hook is mounted inside the accommodating cavity. According to the handheld maintenance lamp, the LED light source is long in service life and highly reliable, so that the problem of frangibility of fluorescent light sources of existing maintenance lamps; the protecting mesh cover can protect the transparent cover and avoid breakage of the transparent cover when the maintenance lamp falls off; the hook structure embedded inside the accommodating cavity fundamentally solves the potential risk existing in existing lamps due to the fact that hooks are fixed to the head portions; meanwhile, the driving device is arranged under the light source, so that handholding operation can be facilitated, and meanwhile, the whole handheld maintenance lamp is compact in structure and safe and convenient to use.
Owner:SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1

Handheld maintaining lamp

The invention relates to the technical field of lighting and provides a handheld maintaining lamp which comprises a columnar light source support, a light-emitting diode (LED) light source assembly fixed on a part of the lateral wall of the light source support, a transparent cover arranged on the outside of the LED light source assembly and a driving device arranged under the light source support and used for driving the LED light source assembly. A containing groove is formed in the other part of the lateral wall of the light source support far away from the LED light source assembly, and a hook capable of being overturned vertically and movably is arranged in the containing groove. An LED light source is long in service life and good in reliability, and the shortcoming that the existing maintaining lamp adopts a fluorescent light source and is easy to break is overcome. The hook structure is built in the containing groove, the hook can be pulled out when required, and the hook is overturned downwards automatically into the containing groove under the gravity when hanging is not required. Safety hazards caused by the fact that the hook is fixed at the head portion of the existing lamp are avoided. The driving device is arranged under the light source in the maintaining lamp structure, handheld operation is facilitated, and the whole lamp is compact in structure and safe and convenient to use.
Owner:SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1

A kind of material for vulcanization mold surface treatment and its preparation method and application

The invention discloses a material for surface treatment of vulcanization molds, its preparation method and application. The material is composed of thermosetting acrylic resin, silane coupling agent, silanol oligomer, carbodiimide, inorganic oxide , deionized water and silicone polyoxyethylene ether are composed according to a specific ratio. Experiments have proved that the material of the present invention can be coated on the surface of metal molds at room temperature without special equipment, simple and quick to operate, easy to construct and independently complete the coating operation, and the bonding force between the coating film and the surface of the metal mold is strong, and has a low surface area. Excellent performance of hydrophobic and oleophobic, which can reduce or eliminate the use of release agent, and also has a good anti-rust effect, which significantly prolongs the mold washing cycle and mold service life, and significantly reduces the number of mold washing and enterprise costs. ; Moreover, the material is a water-based product, does not contain solvents, and is safe for transportation, storage, and construction; it is especially valuable for tire manufacturers to achieve energy conservation and environmental protection.
Owner:上海凯陆高分子材料有限公司

A handheld maintenance light

The invention relates to the field of lighting technology and provides a handheld maintenance lamp. The handheld maintenance lamp comprises a columnar light source support, a first LED (light emitting diode) light source assembly arranged on the outer wall of the light source support, a transparent cover arranged outside the first LED light source assembly, a protecting mesh cover covering the transparent cover, and a driving device which is arranged under the light source support and used for driving the first LED light source assembly. The light source support is axially provided with an accommodating cavity, and a vertically-retractable hook is mounted inside the accommodating cavity. According to the handheld maintenance lamp, the LED light source is long in service life and highly reliable, so that the problem of frangibility of fluorescent light sources of existing maintenance lamps; the protecting mesh cover can protect the transparent cover and avoid breakage of the transparent cover when the maintenance lamp falls off; the hook structure embedded inside the accommodating cavity fundamentally solves the potential risk existing in existing lamps due to the fact that hooks are fixed to the head portions; meanwhile, the driving device is arranged under the light source, so that handholding operation can be facilitated, and meanwhile, the whole handheld maintenance lamp is compact in structure and safe and convenient to use.
Owner:SHENZHEN OCEANS KING LIGHTING ENG CO LTD +1

A cobalt complex recovery method for simultaneous flue gas desulfurization and denitrification by cobalt ammonium absorbent

Disclosed is a cobalt complex recycling method for a cobalt ammonia absorbent for simultaneous flue gas desulfurization and denitrification, comprising the following steps: 1) spent waste cobalt-containing absorbent in the process of the simultaneous removal of SO2 and NOx in an industrial boiler being subjected to solid-liquid separation and recycling by a microfiltration, ultrafiltration or microfiltration-ultrafiltration combination device (1) to obtain a permeate and a retentate after microfiltration and ultrafiltration, wherein the permeate is then further concentrated by a nanofiltration device (2) to obtain a permeate and a retentate after nanofiltration; 2) the retentate after microfiltration and ultrafiltration and the retentate after nanofiltration entering a pyrolysis device (3) for pyrolysis to obtain cobaltous oxide, wherein the cobaltous oxide is added to an acid dissolution device (4) and mixed with an acid solution to form a cobaltic acid solution; and 3) the permeate filtered by the nanofiltration device (2) and containing NH3.H2O and NH4 +, as a chelating reagent, together with a pH buffering agent, being fed into a mixing device (5), and being mixed with the cobaltic acid solution formed in step 2) and supplementary ammonia water in the mixing device (5) to produce a hexaammine cobalt complex for recycling.
Owner:TSINGHUA UNIV +1

Material for surface treatment of vulcanization mold and preparation method and application thereof

The invention discloses a material for surface treatment of a vulcanization mold and a preparation method and application thereof. The material is composed of thermosetting acrylic resin, silane coupling agent, silanol oligomer, carbodiimide, inorganic oxide, deionized water and silicone polyoxyethylene ether according to a specific proportion. Experiments prove that the material can be coated onthe surface of a metal mold at room temperature, special equipment is not needed, the operation is simple and quick, and the coating operation is easy to construct and independently complete; the binding force between the coating film and the surface of the metal mold is strong, the coating film has low surface energy, the hydrophobic oleophobic property is excellent, and the use of the release agent can be reduced or eliminated; and meanwhile, a good anti-rust effect is achieved, so that the mold washing period and the service life of the mold are obviously prolonged, and the number of mold washing and the cost of the enterprise are obviously reduced. Moreover, the material is an aqueous product, free of solvents, and safe in transportation, storage and construction; and in particular, the material has significant value for tire manufacturers to achieve energy conservation and environmental protection.
Owner:上海凯陆高分子材料有限公司

Graphene conductive composite material filter cloth for electric sludge dewatering equipment and its manufacturing method, installation and use method

The invention discloses a graphene conductive composite filter cloth for electric sludge dewatering equipment and a manufacturing method and installing and using methods of the graphene conductive composite filter cloth. The manufacturing method comprises the steps that firstly, a stably-dispersed graphene dispersion solution is prepared; secondly, a filter cloth body is soaked in the graphene dispersion solution for 6-10 h and then taken out, and the soaked filter cloth body is roasted for 6-10 h at 80-160 DEG C; or, before the filter cloth body is woven, fiber monofilaments are put into the graphene dispersion solution to be soaked for 0.5-5 h or pass through the graphene dispersion solution, graphene is attached to the fiber monofilaments, then the filter cloth body is woven, and the graphene conductive composite filter cloth is manufactured. The graphene conductive composite filter cloth is installed on an anode filter frame of plate frame type filter pressing equipment and connected with the positive electrode of a direct-current power supply and serves as an electric anode. The graphene composite is excellent in conductivity and has very high chemical and electrochemical corrosion resistance when serving as the anode material. The graphene anode material and the filter cloth body are integrated, and the structure of core assemblies of the equipment is simplified.
Owner:SHANGHAI TECHASE ENVIRONMENT PROTECTION

Tongs for wrapping and riveting arm rod and scraping rod of automobile windscreen wiper

The invention discloses a pair of tongs for wrapping and riveting an arm rod and a scraping rod of an automobile windscreen wiper and belongs to the technical field of automobile manufacturing. The pair of tongs comprises a hydraulic cylinder, a fixed plate, a Y-shaped joint, a tray, tong handles, a die, a base block, a piston rod, the arm rod and the scraping rod, wherein the hydraulic cylinder outwards exerts a force to the piston. The pair of tongs is characterized in that the hydraulic cylinder is fixed to the fixed plate, the Y-shaped joint is arranged under the fixed plate, the piston rod is connected with the Y-shaped joint through a thread, the tray is arranged under the Y-shaped joint, the Y-shaped joint is connected with the tray together through a hinge pin, the tong handles arearranged under the tray, the tray is connected with the tong handles through connecting rods, the die is arranged below the tong handles and is connected with the tong handles together through bolts,the upper portion of the die is provided with the base block, the die rotates jointly with the tong handles, and the die and the base block simultaneously extrude the arm rod, so that the arm rod isbent to be wrapped and riveted together with the scraping rod. Only several seconds are needed in the whole process, and the pair of tongs is simple in operation, capable of saving time and labor andlow in cost loss and can the demand for large-batch production.
Owner:JIANGSU YUNRUI AUTOMOBILE ELECTRIC SYST CO LTD

Gas high-sealing low-loss pressurizing system and method

The invention discloses a gas high-sealing low-loss pressurizing system and method. The system is composed of a low-pressure tank, a vacuum pump, a pressure accumulator, a diaphragm compressor, a high-pressure tank, valves, pipelines, instruments and the like. As the vacuum pump vacuumizes the low-pressure tank with the fixed volume, low-pressure process gas is exhausted and then fed into the pressure accumulator with the variable volume, the process gas is fed into the metal diaphragm compressor through the pressure accumulator to be compressed and exhausted into the high-pressure tank, the dual functions of vacuumizing and compression are achieved, and gas residues are reduced. Variable volume compensation is carried out by the pressure accumulator through a metal corrugated pipe diaphragm, and the requirements of an outlet of the vacuum pump and a compression inlet of the metal diaphragm for the pressure of the process gas are guaranteed. The whole pressurizing system is sealed by an all metal material, and gas leakage and permeation are reduced. The system and method are used for carrying out compression pressurization, volume reduction storage, transportation and the like on various kinds of high-purity gas, expensive gas, dangerous gas and radioactive gas.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Method, device and storage medium for evaluating line operation efficiency of distribution network

The invention discloses a method for evaluating the operating efficiency of a distribution network line, which includes calculating the optimal load of the distribution network line and the available load of the distribution network line according to the received historical operation data, and calculating the optimal load, available load, The rated power of the distribution network line and the actual load of the distribution network line calculate the reference load level value and the actual load level value of the distribution network line respectively, and the ratio of the actual load level value to the reference load level value is the distribution network line Operating efficiency, the calculated operating efficiency comprehensively considers the load value of the minimum loss cost of the distribution network line under the ideal state, the maximum load of the distribution network line under the consideration of the reserve capacity, the rated load and the actual load of the distribution network line, thus The calculated operating efficiency can more accurately evaluate the operating efficiency of distribution network lines. The present invention also provides an evaluation device and a storage medium for the operation efficiency of distribution network lines, which have the above beneficial effects.
Owner:ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1

Simple mechanism for testing cycle indexes of springs of windscreen wipers

The invention discloses a simple mechanism for testing cycle indexes of springs of windscreen wipers. The simple mechanism comprises a main frame, a motor, a big belt wheel, an eccentric shaft, a connection rod, a lower sliding block, a lower die, a spring, an upper die, an upper sliding block, guide pillars, a lead screw, a handle and a hand wheel, wherein the motor, the big belt wheel and the eccentric shaft are arranged on the main frame; a dividing ruler is arranged on the main frame; four guide pillars are arranged on the main frame; eight guide sleeves are arranged on the guide pillars;the excircles of the guide sleeves are respectively in interference fit with the upper sliding block and the lower sliding block; the upper sliding block can be adjusted through the lead screw; and through the upper sliding block, the scale on the main frame can be read. An operator takes a spring; one end of the spring is hung on the upper sliding block and the other end is hung on the lower sliding block; through adjusting the upper sliding block, the spring is pre-tightened; and when the upper sliding block is adjusted to a required scale, the motor can be started to carry out test, so thatthe operation is simple, the time and labor are saved, the depletion expense is low, and the spot check of batch springs is satisfied.
Owner:JIANGSU YUNRUI AUTOMOBILE ELECTRIC SYST CO LTD
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