Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
41results about How to "Avoid start and stop" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Paraboloid trough type solar heat-collector auxiliary coal-burning boiler mixing heat power generation system
InactiveCN101260815AHigh thermal efficiencyLess coal consumptionSteam engine plantsDeaeratorEngineering
The invention belongs to the generating equipment scope and in particular relates to a mixed heat power generating system with a paraboloid groove type solar heat collector to assist a coal burning boiler. A solar heat collector field is connected with a feed pump and a second or a third high-pressure heater; a condenser, an extraction pump, a low-pressure heater, a deaerator, the feed pump, the high-pressure heater, the coal burning boiler and a steam turbine are connected in series in turn; and the steam turbine drives a dynamo and discharges steam to the condenser. Condensed water flows out from the condenser and is heated up and pressurized up by a the low-pressure heater, deoxidized by the deaerator, fed with water by a leading-out part of the feed pump and enters the solar heat collector field for heat absorption; after reaching a stream drawing parameter of a certain stage high-pressure heater, the condensed water returns and joins the drawing gas of the corresponding stage heater; the other part of feeding water enters the coal burning boiler through the high-pressure heater and becomes steam with high temperature and high pressure; and the steam enters the stream turbine, applies work and flows into the condenser to complete a thermodynamic cycle. The mixed heat power generating system with the paraboloid groove type solar heat collector to assist the coal burning boiler reduces coal consumption of a coal burning unit, improves thermal efficiency of the solar heat power generation and reduces the investment on the simple paraboloid groove type solar heat power generation.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Multiple online control method and system
ActiveCN105571067AGuaranteed cooling and heating effectGood cooling and heating effectSpace heating and ventilation safety systemsLighting and heating apparatusStart stopRefrigeration temperature
The invention discloses a multiple online control method and system. The method comprises the steps that the set temperature and the indoor environment temperature of each indoor unit are obtained, and the temperature difference is calculated; the comprehensive temperature difference is calculated; a refrigeration modification value ETS / a heating modification value CTS is calculated according to the comprehensive temperature difference; and the evaporation temperature / condensation temperature is modified, and the frequency of each compressor is adjusted. According to the multiple online control method, the frequency of each compressor is adjusted according to the modified evaporation temperature / refrigeration temperature, energy is saved, and meanwhile the refrigerating / heating effect of each indoor unit can be guaranteed. When the requirement for each indoor unit is low, the frequency of the corresponding compressor is reduced, the corresponding compressor runs at the low frequency and is kept running with the low output in a low energy consumption manner, the corresponding compressor is protected against start stop, and accordingly power rise caused by start stop of the corresponding compressor is avoided. Meanwhile, the indoor units continuously run, so that the indoor temperature is maintained near the set temperature, the constant indoor temperature is achieved, a good refrigerating / heating effect is guaranteed, and the comfort degree is improved.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD
Method for controlling wind generating set under strong wind
InactiveCN101832230AEnsure safetyExtended service lifeWind motor controlMachines/enginesWind forceControl mode
The invention relates to a method for controlling a wind generating set under strong wind, which comprises the following steps of: A, monitoring the state of the generating set, executing a step B when a fan runs normally, and stopping the generating set when the fan fails; B, monitoring the wind speed, stopping the generating set when the wind speed is greater than a maximum running wind speed, and executing the step A when the wind speed is less than or equal to a cut-out wind speed, otherwise, executing a step C; and C, reducing power output. The invention provides a safe and efficient control mode; based on a normal wind generator control strategy, a concept of strong wind control curve is introduced so that the wind generating set still runs normally under a high wind speed working condition and is combined to the grid while reducing the wind load influence; and the method improves the utilization rate and power generation quantity on the premise of ensuring the safety of the fan, meanwhile eliminates a parameter of restarting wind speed, avoids redundant start-stop processes, and prolongs the service life of the fan.
Owner:GUANGXI YINHE WIND POWER +1
Temporary obstacle handling method for laser slam navigation
ActiveCN108303986AAvoid start and stopAvoid slowing downPosition/course control in two dimensionsVehiclesLaser scanningComputer vision
The invention discloses a temporary obstacle handling method for laser slam navigation, which is applicable to the factory environment. The temporary obstacle handling method is characterized by comprising the steps of: S1, importing a positioned static map into an AGV, and using the static map as a background map of an alarm map; S2, displaying an occupied area and an expanded area of a fixed obstacle on the alarm map; S3, setting two-level alarm areas including a first-level alarm area and a second-level alarm area; S4, detecting an obstacle by means of a laser scanner, judging whether the obstacle is a fixed obstacle or a temporary obstacle based on the detection result, and displaying the temporary obstacle detected by the laser scanner on the alarm map; S5, detecting whether the AGV is positioned in a human-computer interaction area or an AGV exclusive area, carrying out no operation on the temporary obstacle when the AGV is positioned in the human-computer interaction area, and executing a step S6 when AGV is positioned in the AGV exclusive area; S6, and selectively performing speed reduction, stopping or running at an original speed by the AGV based on the judgment result ofthe step S4.
Owner:严格科创发展(昆山)有限公司
Air source heat pump water heater
InactiveCN101846389AAvoid start and stopRaise the water temperatureFluid heatersTemperature controlFour-way valve
The invention discloses an air source heat pump water heater which comprises a refrigerating loop, a hot water loop and a controller, wherein an exhaust port of a compressor is connected with a main pipe orifice D of a four-way valve, and is connected with a liquid inlet hole of a heat exchanger through a valve pipe orifice C; a liquid outlet hole of the heat exchanger is connected with an inlet of an evaporator through a throttling device; an outlet of the evaporator is connected with a pipe orifice E of the four-way valve, and is connected with a suction hole of the compressor through a valve hole S; the air source heat pump water heater is characterized in that the compressor is a variable frequency compressor; an auxiliary cooling pipeline is connected between an air suction pipeline of the compressor and a liquid outlet of the heat exchanger; the pipeline is formed by connecting an electromagnetic valve and a liquid spray capillary tube; an exhaust pipeline of the compressor is provided with a row of temperature sensors; and the row of temperature sensors are used for measuring the temperature for controlling the electromagnetic valve to be opened and closed. By adopting the variable frequency compressor and being matched with the auxiliary cooling pipeline, the air source heat pump water heater leads the compressor to work normally in the environment with low temperature, ensures the hot water supply to be stabler, and has wider application scope.
Owner:SUZHOU UNIV +1
Decision-making method for optimizing thermal power unit combination under complementation of wind power and energy storage system
InactiveCN107171367APlay a backup roleRemove uncertaintySingle network parallel feeding arrangementsEnergy storageElectric power systemPower Balance
The invention relates to a decision-making method for optimizing thermal power unit combination under complementation of wind power and an energy storage system. The decision-making method comprises a process of optimizing an upper layer problem and a lower layer problem, wherein the upper layer problem builds upper layer problem constraint conditions by taking minimization of the operating cost of a thermal power unit within a set period as an objective function; the lower layer problem builds lower layer problem constraint conditions by taking maximization of profit acquired by the energy storage system in performing space-time translation and backup supply on electric energy in a power grid as an objective function; and a solution is acquired by using a mode of alternative iteration of the upper layer problem and the lower layer problem. The energy storage system in the model not only can participate in an expected power balance constraint, but also can play a role of backup through complementation with the wind power, and has an ability of directly eliminating the uncertainty; frequent startup and shutdown of the thermal power unit is avoided on the basis of improving the uncertainty acceptance ability; and a regulating effect of the frequency of an electric power system is considered in decision making, so that the decision is enabled to be free from conservation and more conform to the reality.
Owner:SHANDONG UNIV +1
Automatic magnetic roller paint spraying equipment
InactiveCN101979151AAvoid start and stopSimple structureSpraying apparatusElectric machineryControl equipment
The invention relates to automatic magnetic roller paint spraying equipment. The equipment consists of a base, a water screen spraying cabinet, a magnetic roller power transmission system, a spray gun moving device and an electrical appliance control cabinet, wherein the water screen spraying cabinet is a cabinet body of which the right side is provided with an opening; the inner wall of the cabinet body is used as a water screen plate; the cabinet body and the base enclose a water tank; water flow outflowing from a water pump arranged above the cabinet body forms a water screen to adsorb sprayed paint; the electrical appliance control cabinet abuts against the spray gun moving device and is arranged in parallel on the outer side of the water screen plate to control the operation of the equipment; in the magnetic roller power transmission system, power is outputted by a motor, and two rotating shafts are driven to rotate in the same direction through the meshing transmission of a gear so as to realize the rotation of a magnetic roller; and in the spray gun moving device, the power is outputted by a servo motor, and a lead screw is driven to rotate by a coupler, so that a spraying gun fixed on a lead screw nut block moves right and left. In the automatic paint spraying equipment, the motor does not need stopping in the process of replacing the magnetic roller, so that the automatic magnetic roller paint spraying equipment has a simple structure, is convenient to operate, has reliable spraying performance, and improves the efficiency greatly.
Owner:FOREVER TECH
Miniature hydraulic drive system used for ankle joint artificial limb
InactiveCN107288941AReduce peak power requirementsReduce power consumptionServomotor componentsAccumulator installationsHydraulic pumpCheck valve
The invention discloses a miniature hydraulic drive system used for an ankle joint artificial limb. The miniature hydraulic drive system comprises an electromotor, a hydraulic pump, a first check valve, a second check valve, a first energy accumulator, a second energy accumulator, a first normally-opened switching valve, a second normally-opened switching valve, a first normally-closed switching valve, a second normally-closed switching valve and a double-ejection-rod hydraulic cylinder. In the miniature hydraulic drive system, by means of unceasing work of the motor and energy storage of the energy accumulators, the requirement for the peak power of the motor can be reduced; and the power consumption is lowered during long-term walking so that the cruising ability can be improved. In the miniature hydraulic drive system, the direct-current motor and the hydraulic pump unceasingly work in the whole movement process, the energy utilization efficiency of the system is improved, frequent start, stop and reversing of the motor are avoided, and therefore the usability of the motor is improved, and the service life of the motor is prolonged.
Owner:BEIHANG UNIV
Refrigerator and refrigerating chamber defrosting control method therefor
ActiveCN103411380APromote meltingAvoid start and stopDomestic cooling apparatusLighting and heating apparatusEngineeringRefrigerated temperature
The invention discloses a refrigerator and a refrigerating chamber defrosting control method therefor. The method includes the steps: calculating accumulative refrigerating time of a refrigerating chamber of the refrigerator; performing auxiliary defrosting of the refrigerating chamber when the accumulative refrigerating time reaches a first preset time which is 5 hours to 10 hours; ending the auxiliary defrosting when the temperature of an evaporator is larger than or equal to a first preset temperature which is 4 DEG C to 6 DEG C. The refrigerating chamber defrosting control method for the refrigerator according to the embodiment is effective in defrosting and allows a water guide channel of the refrigerator to rarely ice.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD
Air conditioner and control method for air conditioner
ActiveCN1987260AAvoid frequent start and stopExtended service lifeSpace heating and ventilation safety systemsLighting and heating apparatusControl theoryHeat exchanger
An air conditioner has an outdoor set with compressor, an indoor set with fan, heat exchanger, room temp sensor and heater controlled by controller, a controller, and a temp setting-up unit. Its control method features that when the air conditioner is running in heating mode and the sensed indoor temp is higher than the temp setting by a certain value, the compressor is stopped and the heater is turned on.
Owner:PANASONIC CORP
Whole network distributed heat storage and supply system and method
ActiveCN108895514AMeet peak shaving needsSolve balance problemsCentral heating with accumulated heatLighting and heating apparatusControl systemEngineering
The invention relates to a whole network distributed heat storage and supply system and method and belongs to the field of heat storage and supply systems. The whole network distributed heat storage and supply system is characterized by comprising a heat supply system, a heat storage system, a control system and a management and control platform, wherein the heat supply system is connected to theheat storage system, and the control system is separately connected to the heat supply system, the heat storage system and the management and control platform; the heat storage system includes a heatstorage tank, an electric shut-off valve, an electric regulating valve and a circulating water pump, wherein a cold water end and hot water end of the heat storage tank are separately connected to theheat supply system through the electric shut-off valve, the electric regulating valve and a circulating water pump. The whole network distributed heat storage and supply system and method have the advantages that novel heating systems of heat storage devices are installed on positions such as users' houses, heat exchange stations, pipe networks, renewable energy source areas, thermal power plantsand regional boiler rooms, and through the mode of combining user sides, pipe network sides and heat source sides for heat storage, not only are the needs of heat sources for peak shaving met, but also the advantages of being narrow in adjustment range, closer to the users, higher in flexibility and the like are achieved.
Owner:大连海心信息工程有限公司
Ventilation equipment and control method thereof
InactiveCN105135588AAvoid start and stopLow failure rateSpace heating and ventilation safety systemsLighting and heating apparatusIndoor air qualityEngineering
The invention provides ventilation equipment and a control method thereof. The ventilation equipment comprises a heat exchange device and a fan assembly. The heat exchange device comprises a first air channel, a first heat exchange section in the first air channel, a second air channel and a second heat exchange section in the second air channel. Heat is transferred between the first heat exchange section and the second heat exchange section. The first air channel and the second air channel are communicated with indoor environment and outdoor environment respectively. According to the ventilating equipment, as the heat exchange device is communicated with the outside and the inside of a room, air exhausted to the outside of the room from the inside of the room and outdoor air entering the room exchange heat in the heat exchange device, cooling capacity or heat carried by the indoor air flowing out can be recovered, on the premise of improving the indoor air quality, workloads of refrigerating and heating equipment like an air-conditioner are reduced relatively, and the purposes of energy conservation and environmental protection of the ventilation equipment are achieved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
Semiconductor thermoelectric air-conditioning and water-heating device
InactiveCN104534582AAvoid atmospheric greenhouse effectImprove equipment reliabilityMachines using electric/magnetic effectsSustainable buildingsConservation of energyWater tanks
The working principle of a semiconductor thermoelectric air-conditioning and water-heating device is that when one portion of electric energy is input, 1.5 portions of cold energy is generated on a refrigerating end face of a semiconductor thermoelectric element, and indoor return air, which is driven by a draft fan to flow downwardly and passes through vertical air side fins, is cooled by the cold energy through the vertical air side fins, so that an air-conditioning function is achieved; according to the energy conservation law, 2.5 portions of heat is generated on a heating end face of the semiconductor thermoelectric element, and water, which is driven by the siphon effect to flow upwardly and passes through the side wall of a hot water tank and vertical hot water side fins, is heated by the heat energy through the side wall of the hot water tank and the vertical hot water side fins, and the heated water is insulated by a thermal insulation material at the outer side of the hot water tank; while the device is in use, cold water enters the hot water tank from a water inlet, and after the cold water is heated, hot water flows out of the hot water tank from a water outlet, so that a water-heating function is achieved. The energy efficiency ratio of air conditioning to water heating reaches up to 4.
Owner:侴乔力 +1
Pressure maintaining system adopting variable-frequency pressure maintaining equipment and self-adaptive control method
ActiveCN112783224AExtend your lifeReduce wear consumptionFluid pressure control using electric meansInteraction deviceMaintaining equipment
The invention discloses a pressure maintaining system adopting variable-frequency pressure maintaining equipment and a self-adaptive control method. The system comprises a pressure container, a non-pressure container and pressure maintaining equipment; and the pressure container is connected with the non-pressure container through pressure maintaining equipment. The pressure container is provided with a sensor. The sensor and the pressure maintaining equipment are both connected with a controller, and the controller is connected with a man-machine interaction device. The invention aims to solve problems that the consumption load is not matched with the output power of the pressure maintaining equipment, the pressure maintaining equipment is frequently started, stopped or loaded and unloaded, the abrasion consumption of equipment original parts is aggravated, the service life of the pressure maintaining equipment is influenced, energy loss is caused, and the system energy efficiency and economy are influenced.
Owner:CHINA YANGTZE POWER
Control method and device of magnetic suspension cold water host machines of office building central air conditioning system
ActiveCN106969465AReduce performanceExtended service lifeSpace heating and ventilation safety systemsLighting and heating apparatusMathematical modelLeast squares
The invention relates to a control method of magnetic suspension cold water host machines of an office building central air conditioning system. The control method comprises the following steps: (S11) a performance curve of a magnetic suspension cold water host machine set and a performance curve of single freezing pump are obtained; (S12) the performance curve of the magnetic suspension cold water host machine set and the performance curve of the single freezing pump are fitted by applying a least square method to obtain a mathematical model of the magnetic suspension cold water host machine set and a mathematical model of the single freezing pump; (S13) based on the energy consumption added by change of the obtained single freezing pump to two freezing pumps, the mathematical model of the magnetic suspension cold water host machine set and the mathematical model of the single freezing pump are combined to obtain a corresponding relation curve between total energy consumption and part load of the central air conditioning system; (S14) the integration is performed according to the corresponding relation curve between total energy consumption and part load of the central air conditioning system to obtain a preset part load range of the central air conditioning system; and (S15) the opening number of the magnetic suspension cold water host machines of the central air conditioning system is controlled according to the preset part load range of the central air conditioning system.
Owner:SHENZHEN DAS INTELLITECH CO LTD
An up-illuminated X-ray fluorescence spectrometer and its control method
ActiveCN104020184BAvoid pollutionStrong penetrating powerMaterial analysis using wave/particle radiationLight pipeX-ray
The invention discloses an upward-lighting type X-ray fluorescence spectrophotometer and a control method thereof. The X-ray fluorescence spectrophotometer comprises a light pipe mounting unit, a detector unit, a collimator, a high-voltage assembly unit, a movable sample platform, a helium inflating unit, a control unit and a channel correction unit, wherein the channel correction unit comprises a composite correction sheet, and the movable sample platform is horizontally arranged below a light pipe and the collimator. The control method comprises the steps of firstly correcting by virtue of the channel correction unit, then starting the high-voltage assembly unit to excite the light pipe to generate an X ray penetrating through the collimator to irradiate the surface of a sample with an incident angle of 90 degrees, and receiving generated X-ray fluorescence signals by virtue of a detector. The upward-lighting type X-ray fluorescence spectrophotometer has the beneficial effects that by an upward-lighting manner, a light path can be prevented from being polluted by scattering fluorescence generated when the sample is excited by the X ray, meanwhile, the penetrating power of the X ray is improved, and the standby-voltage control on the X ray and the automatic correction of the spectrophotometer can be realized; the spectrophotometer is high in precision and speed, good in stability, high in instantaneity, small in calculated quantity and high in universality.
Owner:SUZHOU 3V DETECTION INSTR
Metal plate strip rolling quenching speed control system and method
ActiveCN108913872AMeet the needs of complex heat treatment processesReduce scratchesFurnace typesHeat treatment process controlFailure rateTreatment demand
The invention belongs to the technical field of metal plate strip heat treatment equipment and discloses a metal plate strip rolling quenching speed control system and method. The control system is composed of high pressure zone and low pressure zone roller driving systems. The high pressure zone, low pressure zone and high-low pressure zone speed control methods are used according to different quenching cooling stages of a plate strip. The system and method realize a combined control strategy of a complex speed, an accelerated speed, forward and reverse rotation, starting and stopping of a roller of a roller quenching machine, has a high control precision, good synchronism and a low failure rate, and can meet complicated heat treatment demands of different types and different specifications of metal plate strips, and significantly improves the shape, uniformity and surface quality of the quenched and cooled plate strip.
Owner:NORTHEASTERN UNIV
Household electrical appliance switch
ActiveCN107295767AEasy to useIncrease diversityCasings/cabinets/drawers detailsElectricityEngineering
The invention discloses a household electrical appliance switch which comprises a base, a fixed hole, pressing plates, a fluorescent plate, a first switch, a second switch, a position limiting hole, sockets, a mounting box, a protection plate, a boss, a connecting column, sliding columns, a slot, an inserting column and a toggle buckle. The beneficial effects of the present invention are as follows: through the arrangement of sets of pressing plates on the base and the sliding columns at the bottoms of the pressing plates, the pressing plates can be detached from the base. The arrangement of the protection plate inside the base and the sockets inside the protection plate means that the pressing plates are removable in the daily use. The use of the internal sockets solves the problem of insufficient number of sockets and protects the sockets from being damaged. When the pressing plates are removed, the first switch and the second switch at both ends of the base can control the opening and closing of the household electrical appliances. The device is easy to use, can control the start and stop electrical appliances, and can also solve the inconvenience with the sockets to use electricity. According to the different electrical appliances at home, sockets of different specifications can be replaced, making the sockets more diverse.
Owner:何永刚
Steam drying equipment for preparing soluble humic acid
PendingCN111578651AAvoid start and stopPerformance is not affectedEvaporator accessoriesDrying machines with non-progressive movementsFixed frameIndustrial engineering
The invention provides steam drying equipment for preparing soluble humic acid. The steam drying equipment comprises a fixed frame, a steam roller, a liquid material trough and a scraping device; thesteam roller is arranged on the fixed frame and positioned above the liquid material trough; the scraping device comprises a scraping knife, a feeding plate, an extension plate and a connecting piece;the two sides of the scraping knife are correspondingly arranged as a plane and an outwardly convex cambered surface; lug blocks are correspondingly arranged at the left end and the right end of thescraping knife; the bottom end of the scraping knife is fixedly connected with the feeding plate; the outwardly convex cambered surface at the top end of the scraping knife is tangent with the steam roller; the feeding plate is rotatably connected with the extension plate; the extension plate is fixedly connected with the fixed frame; one end of any connecting piece is fixedly connected with the lug block; the other end of the connecting piece is connected with the fixed frame and the position of the connecting piece can be adjusted; and the positions of the two connecting pieces on the fixedframe are adjusted to change the tangent position between the scraping knife and the steam roller. According to the steam drying equipment of the invention, frequent replacement of the scraping knifeis avoided, the time cost and maintenance cost are reduced, and maintenance efficiency of the scraping knife is greatly improved.
Owner:山西林海腐植酸科技有限公司
Temperature control device and method of series compensation device control protection system
PendingCN112327966AHigh degree of automationEnsure safe and stable operationTemperatue controlOperating temperatureProcess engineering
The invention provides a temperature control device and method of a series compensation device control protection system. The device comprises an acquisition module, a processing module and an adjusting module which are connected in sequence; the acquisition module converts the acquired actual temperature of the control protection system into a differential signal of a high voltage level; the processing module is used for calculating the operating temperature of the control protection system; and the adjusting module is used for adjusting the actual temperature of the control protection system. The actual temperature can be adjusted on the basis of the calculated operating temperature, the automation degree is high, and the control protection system and a draught fan cannot be damaged; andcollection of the overall temperature of a case is achieved by arranging a plurality of temperature sensors, safe and stable operation of the control protection device and the measurement and controldevice is guaranteed, damage caused by too high temperature is avoided, in addition, the operation temperature of the control protection system can be displayed and stored, and convenience is provided for maintenance of the control protection system.
Owner:STATE GRID CORP OF CHINA +2
A device for efficient separation and automatic circulation of powder catalysts in the process of catalytic oxidation treatment of sewage
ActiveCN107930235BLong-term separationStable and efficient separationWater/sewage treatment by irradiationMoving filtering element filtersOzone generatorDifferential pressure
The invention discloses a device for enabling fine catalyst to be efficiently separated and automatically circulated during catalytic oxidation treatment of sewage, and belongs to the field of water pollution control. The device comprises a strong oxidant adding device, a lifting pump, a water injector, an ozone generator, an ultraviolet lamp controller, a catalytic oxidation reaction tank, a catalyst separation pump, a flowmeter, a catalyst water inlet valve, a centrifugal hydraulic interception pulse separator, a water outlet valve, a catalyst return valve, a deactivated catalyst discharge valve, a pulse backwash pump, a pulse backwash valve and a clean water tank. The device greatly reduces differential pressure rise caused by accumulation of the fine catalyst on the surface of a filtercartridge of the centrifugal hydraulic interception pulse separator through the coupling effect of inlet water tangent scouring, centrifugal force and pulse backwash, thereby guaranteeing the long-term, stable and efficient separation operation of the centrifugal hydraulic interception pulse separator. The device can not only realize the efficient separation of the fine catalyst, but also realizethe automatic circulation of the fine catalyst after separation.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Control method and device for magnetic levitation chiller main engine of office building central air-conditioning system
ActiveCN106969465BReduce performanceExtended service lifeMechanical apparatusMathematical modelEngineering
Owner:SHENZHEN DAS INTELLITECH CO LTD
Paraboloid trough type solar heat-collector auxiliary coal-burning boiler mixing heat power generation system
InactiveCN101260815BHigh thermal efficiencyLess coal consumptionSteam engine plantsDeaeratorEngineering
The invention belongs to the generating equipment scope and in particular relates to a mixed heat power generating system with a paraboloid groove type solar heat collector to assist a coal burning boiler. A solar heat collector field is connected with a feed pump and a second or a third high-pressure heater; a condenser, an extraction pump, a low-pressure heater, a deaerator, the feed pump, the high-pressure heater, the coal burning boiler and a steam turbine are connected in series in turn; and the steam turbine drives a dynamo and discharges steam to the condenser. Condensed water flows outfrom the condenser and is heated up and pressurized up by a the low-pressure heater, deoxidized by the deaerator, fed with water by a leading-out part of the feed pump and enters the solar heat collector field for heat absorption; after reaching a stream drawing parameter of a certain stage high-pressure heater, the condensed water returns and joins the drawing gas of the corresponding stage heater; the other part of feeding water enters the coal burning boiler through the high-pressure heater and becomes steam with high temperature and high pressure; and the steam enters the stream turbine,applies work and flows into the condenser to complete a thermodynamic cycle. The mixed heat power generating system with the paraboloid groove type solar heat collector to assist the coal burning boiler reduces coal consumption of a coal burning unit, improves thermal efficiency of the solar heat power generation and reduces the investment on the simple paraboloid groove type solar heat power generation.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Combination optimization decision-making method for thermal power units under the complementarity of wind power and energy storage systems
InactiveCN107171367BPlay a backup roleRemove uncertaintySingle network parallel feeding arrangementsEnergy storageElectric power systemEngineering
The invention relates to a decision-making method for optimizing thermal power unit combination under complementation of wind power and an energy storage system. The decision-making method comprises a process of optimizing an upper layer problem and a lower layer problem, wherein the upper layer problem builds upper layer problem constraint conditions by taking minimization of the operating cost of a thermal power unit within a set period as an objective function; the lower layer problem builds lower layer problem constraint conditions by taking maximization of profit acquired by the energy storage system in performing space-time translation and backup supply on electric energy in a power grid as an objective function; and a solution is acquired by using a mode of alternative iteration of the upper layer problem and the lower layer problem. The energy storage system in the model not only can participate in an expected power balance constraint, but also can play a role of backup through complementation with the wind power, and has an ability of directly eliminating the uncertainty; frequent startup and shutdown of the thermal power unit is avoided on the basis of improving the uncertainty acceptance ability; and a regulating effect of the frequency of an electric power system is considered in decision making, so that the decision is enabled to be free from conservation and more conform to the reality.
Owner:SHANDONG UNIV +1
A household appliance switch
ActiveCN107295767BEasy to useSolve the problem of insufficient quantityCasings/cabinets/drawers detailsEngineeringStructural engineering
The invention discloses a household appliance switch, comprising a base, a fixing hole, a pressing plate, a fluorescent plate, a first switch, a second switch, a limit hole, a socket, an installation box, a protective plate, a protruding head, a connecting column, and a sliding column , card slot, post and toggle buckle. The beneficial effect of the present invention is: by installing multiple groups of pressing boards on the base, and setting sliding columns at the bottom of the pressing boards, the pressing boards can be disassembled from the base. A protective plate is installed inside the base, and a socket is installed inside the protective plate, so that the pressing plate can be removed in daily use, and the internal socket can be used to solve the problem of insufficient sockets and protect the socket from damage. After the pressing board is removed, the first switch and the second switch at both ends of the base can control the opening and closing of the household appliances. The device is easy to use, can control the start and stop of electrical appliances, and can also provide sockets to solve the inconvenience of using electricity. During use, sockets of different specifications can be replaced according to different electrical appliances, which increases the diversity of sockets.
Owner:何永刚
A hydraulic circuit for active control of prosthetic knee-ankle joint motion
ActiveCN109764011BReduce peak power requirementsReduce power consumptionServomotor componentsServomotorsHydraulic cylinderFour-way valve
The invention discloses a hydraulic circuit capable of actively controlling movement of artificial limb knee and ankle joints, and belongs to the technical field of artificial limbs and orthoses. Thehydraulic circuit specifically comprises an electromotor, a hydraulic pump, a third one-way valve, a fourth one-way valve, a first one-way valve, a second one-way valve, a third energy accumulator, afourth energy accumulator, a first energy accumulator, a second energy accumulator, a second three-position four-way valve, a first three-position four-way valve, a first normally-closed switch valve,a first damper valve, a second damper valve, a second normally-closed switch valve, a bypass damper valve, a single-output-rod hydraulic cylinder, a double-output-rod hydraulic cylinder, a knee jointoil inlet pipeline, a knee joint oil outlet pipeline, an ankle joint oil inlet pipeline, an ankle joint oil outlet pipeline, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline. The hydraulic circuit capable of actively controlling the movement of the artificial limb knee and ankle joints has the characteristics that the power density is large, the output energy is large,the energy can be effectively stored by using the energy accumulators, the buffering capacity can be flexibly controlled by using the damper valves, and the performance of the artificial limbs can beimproved markedly.
Owner:BEIHANG UNIV
Unit combination method considering demand utility
InactiveCN111313481AAvoid start and stopReduce the burden onSingle network parallel feeding arrangementsEngineeringElectric consumption
The invention discloses a unit commitment method considering demand utility. The method comprises the following steps: constructing a target function for unit combination, and constructing a unit combination model; establishing constraint conditions for the unit combination model; solving the unit combination model according to constraint conditions; and obtaining the total generating capacity ofeach unit combination and the total electricity consumption of each user, wherein the target function is obtained by subtracting a power generation cost function from the sum of all user utility functions.
Owner:SHANDONG UNIV OF SCI & TECH
A temporary obstacle handling method for laser slam navigation
ActiveCN108303986BAvoid start and stopImprove work efficiencyPosition/course control in two dimensionsVehiclesScannerSimulation
Owner:严格科创发展(昆山)有限公司
An air source multi -connected air -conditioning heat pump system and its running method
ActiveCN105318454BReduce restrictionsSmall scaleMechanical apparatusCorrosion preventionCooling towerEngineering
An air source multi-connected air conditioner heat pump system and its operation method belong to the field of heating and air conditioning. The system includes four parts: outdoor unit, heat pump host, defrosting module and indoor unit. The outdoor unit includes at least one parallel cooling tower module, at least two parallel air cooled heat exchanger modules, a first liquid pump and a second liquid pump. The defrosting module includes a defrosting heat exchanger and a second throttle valve, and is connected in parallel with the indoor unit. The air-source multi-connected air-conditioning heat pump system of the present invention discharges heat to the outside through the cooling tower during cooling in summer; during heating in winter, takes heat from the outside through the air-cooled heat exchanger, and uses the defrosting module to produce hot water Defrost the air-cooled heat exchanger. The system and its operation method have the characteristics of efficient cooling in summer, reliable heating and defrosting in winter, and solve the problem that conventional air source multi-connected air-conditioning heat pump systems cannot balance cooling efficiency and heating reliability.
Owner:TSINGHUA UNIV
Method for controlling temperature of molten aluminum in aluminum alloy cast-rolling holding furnace
PendingCN114646215AReduce the effects of overheatingStable temperatureCrucible furnacesAluminum canHeating power
The invention relates to the technical field of aluminum alloy cast rolling, in particular to a method for controlling the temperature of molten aluminum in an aluminum alloy cast rolling holding furnace, which is used for accurately controlling the temperature of furnace gas in an electric heating holding furnace and keeping the temperature of the molten aluminum in the furnace within a process requirement range and comprises the following steps of: measuring the height of the molten aluminum in the holding furnace; setting the heating power of the holding furnace; adjusting the heating power of the holding furnace. According to the method, the temperature of the molten aluminum in the holding furnace is stably controlled by adjusting the heating power of the holding furnace and continuously controlling the temperature of the furnace gas, the method is simple, convenient and feasible, the effect is obvious, the problem of overburning of the molten aluminum can be controlled to a great extent, and energy waste and production cost are reduced while the internal quality of cast-rolled products is improved.
Owner:JIUQUAN IRON & STEEL GRP
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com