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41results about How to "Flow rate limiting" patented technology
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DDoS attack detection system based on software-defined network
ActiveCN110336830AReduce the burden onFlow rate limitingCharacter and pattern recognitionTransmissionControl layerIp address
The invention discloses a DDoS attack detection method based on a software-defined network, and belongs to the technical field of software defined network security defense. The detection system comprises an attack host, a victim host, an OpenFlow switch layer and an SDN control layer. According to the method, the detection process is divided into two parts, firstly, flow information passing through a boundary switch is counted on a switch at the edge of a network; according to an information entropy theory, a destination IP address and the dispersion degree of uniflow distribution are calculated, and when an abnormality is found, a controller is warned, the flow rate of a related port is limited, SVM detection of the controller is started, and by extracting the depth characteristics of theflow, an abnormal flow is detected more accurately, and a switch is guided to discard the abnormal flow. According to the system, data plane detection and control plane detection are combined, the response time of detection is prolonged, the burden of a controller is reduced, and the system has practical application value.
Owner:SHANDONG UNIV
Waste mercury recovery and purification device and use method thereof
ActiveCN105586492AIncrease usageReduce generationProcess efficiency improvementOrganic solventPurification methods
The invention discloses a waste mercury recovery and purification device and a use method thereof. The waste mercury recovery and purification device comprises a control mechanism, a vibration sieving mechanism and a filtering and solution storage mechanism. According to the invention, waste mercury solution can be purified through combination and adjustment, thus generation of toxic wastes is reduced, the inventory rate of hazardous wastes is decreased, the cost of experimental materials is reduced, and the usage rate of mercury is increased; the traditional purification method is broken through, and an organic solvent and high-temperature operation or low-temperature operation are not required, thus the purification method is expanded; high-strength polytetrafluoroethylene plastic is used, thus the support strength is ensured, and moreover, the high-strength polytetrafluoroethylene plastic is corrosion-resistant, free from reacting with mercury, light in weight, and convenient to move and carry; and in the invention, a physical sieving method is utilized, and has the advantages of being high in safety, high in purification effect, simple in equipment and method, low in cost, convenient to move, convenient to operate, easy to popularize and use, and the like compared with the existing purification technologies of vacuum distillation, acid-base washing, and the like.
Owner:苏交科集团(江苏)安全科学研究院有限公司
Device and method for noninvasively detecting level of carbon dioxide in human blood
ActiveCN104586395AEasy to detectHigh precisionRespiratory organ evaluationSensorsCo2 partial pressureExpired gas
The invention discloses a device for noninvasively detecting the level of carbon dioxide in human blood. The device comprises a blowing nozzle, a prolonged expiration induction device for a user to conveniently expire, an infrared adapter window body, a signal detection processing device and a terminal, wherein the prolonged expiration induction device is used for providing expiration positive pressure, limiting flow velocity and inducing the continuous prolonged expiration of expired gas; the infrared adapter window body is used for a detection gas chamber of the expired gas, and detection infrared rays pass through the infrared adapter window body; the signal detection processing device is used for emitting the detection infrared rays to the infrared adapter window body, and detecting the CO2 partial pressure of the expired gas; the terminal is used for receiving, processing and displaying the data of the signal detection processing device. According to the device, the prolonged expiration induction device can be used for providing expiration positive pressure and limiting the flow velocity, so that a patient can be helped to conveniently prolong the expiration time and improve expiration effects; with the use of the prolonged expiration induction device, the flow velocity and pressure of the expired gas are regular, the measurement standardization degree of a testee (patient) is favorably improved, and the consistency of a measurement result is ensured.
Owner:广州弘凯物联网服务有限公司
Electrometric handcart tool
ActiveCN102097749ALimit flow valueFlow rate limitingLifting devicesSubstation/switching arrangement casingsEngineeringPower output
The embodiment of the invention provides an electrometric handcart tool, which comprises a hydraulic power device, a mounting bracket and a pushing device, wherein the hydraulic power device is fixed on the mounting bracket; the two sides of the front end of the mounting bracket are provided with two horizontally extended slot hoes with different heights respectively; the pushing device is arranged in the mounting bracket; the two sides of the front end of the pushing device are provided with two pushing pins with the different heights respectively; the two pushing pins on each side of the front end of the pushing device pass through the two slot holes on the same side of the front end of the mounting bracket from the inner side of the mounting bracket respectively; the power output end of the hydraulic power device is fixedly connected with the rear end of the pushing device, so that the power output end drives the pushing pins of the pushing device to move to and fro in the slot holes of the mounting bracket; and the throttling valves are arranged in a discharge oil line and a return oil line.
Owner:NINGBO ELECTRIC POWER BUREA
Capacity detection device for air flow velocities and detection method thereof
PendingCN110031649AUnderstanding Air Compression EfficiencyImprove product qualityPump testingVolume/mass flow measurementEngineeringAir compressor
The invention relates to the technical field of air flow velocity detection, in particular to a capacity detection device for air flow velocities and a detection method thereof. The capacity detectiondevice for air flow velocities is characterized by comprising a flow velocity detection box, an air leakage detection box, a flow limiting device and a filter device for filtering large particles inthe air, wherein the flow velocity detection box is arranged in the inner cavity of the air leakage detection box and an air storage cavity is formed between the flow velocity detection box and the air leakage detection box; an air inlet of the flow velocity detection box is communicated with an air outlet of the flow limiting device; an air outlet of the flow velocity detection box penetrates through the side wall of the air leakage detection box and extends outwards to form a detection port; and an air inlet of the flow limiting device is communicated with the filter device through an obstruction pipeline. The capacity detection device is strong in innovativeness and practicability, and is capable of effectively detecting the air velocities at air inlets of air compressors so as to improve the production quality of the air compressors.
Owner:QUZHOU COLLEGE OF TECH
Waterproof coating brushing device
The invention relates to a brushing device, in particular to a waterproof coating brushing device. The technical problem to be solved by the invention is how to provide the waterproof coating brushingdevice capable of preventing coating from flowing too fast and preventing the coating from being wasted. In order to achieve the technical problem, the waterproof coating brushing device comprises avehicle frame, main wheels are rotationally connected to the two sides of the vehicle frame, universal wheels are connected to the bottom of the vehicle frame, a storage structure is installed on theupper portion of the vehicle frame, a push rod is connected to the top of the vehicle frame, a feeding structure is installed on the inner wall of the vehicle frame, and a feeding part of the feedingstructure is connected with a storage part of the storage structure. A hose of the waterproof coating brushing device can limit the flow speed of the coating and prevent the coating from flowing too fast, then coating waste can be prevented, and a brush rotates on the ground and moves backwards so that the coating can be evenly brushed on the ground; and a barrel cover can be fixed through an adjusting nut, the barrel cover is prevented from falling off when the barrel body topples over, and therefore the coating is prevented from overflowing.
Owner:山东群雄建设工程有限公司
Device and system for electroplating thin sheets
The invention discloses a device and system for electroplating thin sheets. The device comprises an electroplating tank, flow-guiding devices and a first circulating device, wherein the electroplating tank is provided with a backflow channel, a conveying device for conveying electroplated thin sheets is arranged above the backflow channel; the flow-guiding devices are slantwise arranged at both sides of the electroplated thin sheets and located at the position higher than the uppermost ends of the electroplated thin sheets; electroplating metal liquid from an anode device space flows along the surface of the flow-guiding devices to the backflow channel in the electroplating tank at an uniform thickness from flow-guiding inlets; the liquid suction opening of the first circulating device is communicated with the backflow channel and the liquid discharging opening of the first circulating device is communicated with the anode device space. By virtue of the device for electroplating thin sheets disclosed by the invention, the uniform electroplating thickness of the electroplated thin sheets can be ensured, the quality of the electroplating is improved, the labor cost is saved and the production efficiency is improved.
Owner:KUNSHAN DONGWEI MACHINERY CO LTD
TO-CanLD assembly without backlight monitoring, and preparation method thereof
PendingCN114006258AGuaranteed temperatureFlow rate limitingLaser detailsSemiconductor lasersLaser technologyCooling effect
The invention relates to the technical field of laser, and discloses a TO-CanLD assembly without backlight monitoring. The assembly comprises a TO pedestal, the interior of the TO pedestal is fixedly connected with a pin, the top of the TO pedestal is fixedly connected with a detection chip cushion block, the top of the detection chip cushion block is fixedly connected with a backlight detector, and a gold bonding wire is connected between the backlight detector and the pin. The outer surface of the heat sink is cooled through the water distribution cavity, the hole diameter of a second connecting hole is smaller than that of a first connecting hole, so that the flow speed of water flow in the water distribution cavity is limited, and the cooling effect is guaranteed; and the stability of the water flow is guaranteed by forming the third connecting hole in the top of the drainage groove and the top of the transition cavity. And meanwhile, a guide cavity is located in a semiconductor chilling plate area, the semiconductor chilling plate further guarantees the temperature of refrigeration water, the cooling effect is effectively guaranteed, the working stability of the device in the high-temperature environment is guaranteed, and the resistance to the temperature environment is improved.
Owner:武汉斯优光电技术有限公司
Automatic feeding device for grain drying
ActiveCN110411201AIncrease automation and efficiencyGuaranteed efficiencyDrying solid materialsEngineeringGrain drying
The invention discloses an automatic feeding device for grain drying, and relates to the technical field of automatic feeding. According to the automatic feeding device, grains can be well dried, thegrains lifted and output by a lifting machine of the equipment can be paved and fed on all layers of drying layer plates, the grains can be uniformly paved and spread, and the efficiency and automation degree of grain feeding are improved; meanwhile, a feeding and paving mechanism can be used for feeding and paving the grains on the drying layer plate of each layer, automatic drying and feeding are realized, the efficiency of the drying equipment is guaranteed, and the uniformity and thoroughness of grain drying are improved; and a connection rod and a groove are fixed and in clamp connection,the height of a material equalizing plate can be freely adjusted through a telescopic plate and a supporting plate, the speed of the grains passing through a belt can be effectively limited, the uniform paving performance is improved, and the drying uniformity is guaranteed.
Owner:ANHUI SCI & TECH UNIV
Negative-pressure humidification vehicle-mounted fuel cell system with perforated plate humidifier
InactiveCN101510619BEfficient recyclingImprove thermal conductivityFuel cell auxillariesFuel cellsOn board
The invention belongs to the field of a battery system, in particular relates to a negative pressure humidification on-board fuel battery system with a perforated plate humidifier. The fuel battery system comprises an air compressor, a humidifier and a fuel battery galvanic pile. The fuel battery system is characterized in that the humidifier is the perforated plate humidifier, the air outlet of the perforated plate humidifier is connected with the air inlet of the air compressor, the air outlet of the air compressor is connected with the air inlet of the fuel battery galvanic pile, and the end gas outlet of the fuel battery galvanic pile is connected with the end gas inlet of the perforated plate humidifier. Compared with the prior art, the perforated plate humidifier provided by the invention effectively improves the humidification efficiency of the perforated plate humidifier, lowers the cost of the humidifier, reduces the volume of the humidifier, namely, reduces the volume of thehumidifier of the fuel battery with 50 kW from 10L to 2L, promotes the stability of the humidifier and prolongs the service life of the humidifier. In addition, as the fuel battery system with the perforated plate humidifier improves the humidification efficiency and stability of the humidifier, the stability of the operation of the fuel battery is also promoted.
Owner:WUHAN UNIV OF TECH
Fruit wine storage jar with quick temperature adjusting function
PendingCN109231136AAchieve cycleImprove cooling efficiencyLiquid flow controllersLiquid dispensingEngineeringCirculating pump
The invention provides a fruit wine storage jar with a quick temperature adjusting function. The fruit wine storage jar comprises a jar body, a refrigerant interlayer, a supporting seat and a circulation pipeline; the supporting seat is used for fixing and making the jar body, the refrigerant interlayer sleeves the outer portion of the jar body, and the circulation pipeline is arranged in the refrigerant interlayer and communicated with the upper and lower ends of the jar body through a feeding pipeline and a discharging pipeline; the circulation pipeline comprises four annular pipelines and delivery pipelines, the annular pipelines are horizontally arranged in layers, and every two annular pipelines are connected through at least two delivery pipelines; the discharging pipeline is provided with a circulation pump, a first valve, a second valve and a charging receiving pipe, the first valve is located between the circulation pump and the jar body, the second valve is located between the first valve and the circulation pump, the charging receiving pipe is located between the first valve and the second valve, and the charging receiving pipe is provided with a third valve. The fruit wine storage jar with the quick temperature adjusting function has the advantages that the temperature of fruit wine in the jar can be efficiently adjusted, and a better temperature adjusting effect can be obtained.
Owner:TIANJIN AGRICULTURE COLLEGE
Falling-film reactor
The invention belongs to the technical field of an absorption reaction device, and particularly discloses a falling-film reactor. The falling-film reactor comprises a reactor shell, wherein the upperside wall of the reactor shell is provided with a liquid inlet, an upper pipe plate and a lower pipe plate are fixed in the reactor shell, the upper pipe plate is located on the upper part of the reactor shell and located below the liquid inlet, and the lower pipe plate is located on the lower part of the reactor shell; the upper pipe plate is provided with a liquid distribution drum, and a plurality of flow guide pipes are arranged between the upper pipe plate and the lower pipe plate in a penetrating manner; the lower side wall of the liquid distribution drum is provided with a plurality ofthrough holes, and the top side wall of the liquid distribution drum is provided with a plurality of sawtooth-shaped grooves; an overflow plate located in the liquid distribution drum is arranged above the upper pipe plate, a flow passage is formed between the liquid distribution drum and the overflow plate, the flow guide pipe is located in the overflow plate, the top of the overflow plate is located above the liquid distribution drum, and the height of the bottom of the overflow plate is lower than the height of the upper part of the flow guide pipe; and a falling film apparatus is arrangedin the upper part of the flow guide pipe. By utilizing the falling film reactor of the invention, uniformity in film falling can be realized, and the dry pipe phenomenon can be effectively avoided.
Owner:CHONGQING SHANJU CHEM MACHINERY
Wound-rotor colored spun yarn dyeing and twisting integrated mould head
PendingCN107338524AImprove dyeing effectFlow rate limitingLiquid/gas/vapor removalLiquid/gas/vapor textile treatmentYarnPolymer science
The invention discloses a wound-rotor colored spun yarn dyeing and twisting integrated mould head. The mould head comprises a main body, a yarn inlet and a yarn outlet are formed in the two ends of the main body respectively, a cavity is formed in the interior of the main body, a first dyeing roll set, a second dyeing roll set and a third dyeing roll set are arranged in the cavity, the first dyeing roll set, the second dyeing roll set and the third dyeing roll set comprise upper and lower two sets of dyeing rolls respectively, the two ends of the dyeing roll are arranged movably on the inner part of the main body through a bearing, coating layers are arranged fixedly above the first dyeing roll set, the second dyeing roll set and the third dyeing roll set, three sets of coating layers are arranged in the positions corresponding to the first dyeing roll set, the second dyeing roll set and the third dyeing roll set, and dyeing inlets are formed in the tops of the coating layers on the main body. According to the wound-rotor colored spun yarn dyeing and twisting integrated mould head, the flow rate of the dyes can be limited, too much or too little dyes on the yarn are prevented, the effect of saving dyeing materials is achieved, and the dyeing effect of the yarn is improved.
Owner:响水县恒泰纺织有限公司
Apparatus for applying waterproof paint
ActiveCN111561136BFlow rate limitingFast flowBuilding constructionsStructural engineeringMechanical engineering
The invention relates to a brushing device, in particular to a waterproof paint brushing device. The technical problem to be solved by the present invention is how to provide a waterproof paint brushing device that can prevent the paint from flowing too fast and from wasting the paint. In order to solve the above-mentioned technical problems, the present invention provides such a waterproof paint brushing device, comprising: a vehicle frame, the main wheels are rotatably connected to both sides of the vehicle frame, universal wheels are connected to the bottom of the vehicle frame, and the upper part of the vehicle frame is installed There is a material storage structure, the top of the vehicle frame is connected with a push rod, the inner wall of the vehicle frame is equipped with a feeding structure, and the feeding part of the feeding structure is connected with the storage part of the material storage structure. The flexible hose of the present invention can limit the flow velocity of the paint, prevent the paint flow from being too fast, and prevent the paint from being wasted. The brush rotates on the ground and moves backward to paint the paint evenly on the ground; adjusting the nut can turn the bucket The lid is fixed to prevent the lid from falling when the cylinder is dumped, thus preventing the paint from spilling.
Owner:山东群雄建设工程有限公司
Electric spark deposition contact force controlling device with damping function
ActiveCN111168268AThe contact position does not changeConstant contact forceWelding/cutting auxillary devicesAuxillary welding devicesDamping functionValve stem
The invention relates to an electric spark deposition contact force controlling device with a damping function. The electric spark deposition contact force controlling device with the damping functionmainly comprises an air cylinder, a sliding table, a base, a weight, a clamping mechanism, an angle adjusting device, a throttle valve, a pressure gauge, an inflating valve and the like, wherein themoving direction of a piston of the air cylinder is consistent with the moving direction of the sliding table, and the sliding table moves when the piston moves, so that an electrode is driven to moveup and down, and when the electrode moves downwards, the electrode makes contact with a workpiece. The gravity of a sliding part is counteracted by using thrust generated by the air cylinder in an airtight pneumatic system, the sliding part is pushed by the gravity of the weight to move downwards to form contact force between the electrode and the workpiece, the throttle valve in the airtight pneumatic system generates damping on movement of the piston, electrode vibration caused by recoil force generated in a moving process of the electrode and the workpiece is restrained, in an electric spark deposition surfacing process, stable contact between the electrode and the workpiece and constant contact force can be ensured along with electrode loss and movement of the sliding table, work is reliable, and adjustment is convenient.
Owner:HENAN UNIV OF SCI & TECH
Reaming groove for wet black silicon machine and reaming method of reaming groove
ActiveCN107681021AAchieve secondary coolingGuarantee product qualityFinal product manufactureSemiconductor devicesChemical solutionEngineering
The invention discloses a reaming groove for a wet black silicon machine and a reaming method of the reaming groove. The reaming groove comprises a main groove, an auxiliary groove, a cold-heat exchanger and a liquid guide tube for forming a liquid flow circuit; design of the main groove and the auxiliary groove is mainly used for releasing certain heat after reaction of a silicon wafer is completed, so that overflowing liquid medicine is effectively cooled through the design of capillary tubes in the auxiliary groove; meanwhile, the cold-heat exchanger is also arranged, so that secondary cooling for the liquid medicine is achieved and the preparation quality of black silicon is effectively ensured; and the liquid medicine overflows into the auxiliary groove from the main groove, and meanwhile, the liquid medicine is conveyed through liquid inlet pipes in which a plurality of liquid outlet holes are distributed, so that the uniformity of a chemical solution is ensured to the maximum extent.
Owner:无锡琨圣智能装备股份有限公司
External wall panel production transmission platform for green building design
The invention belongs to the technical field of externally-hung wallboards, and particularly relates to an externally-hung wallboard production transmission platform for green building design. A motor is fixedly connected to the interior of the machine body; the output end of the motor is fixedly connected with a first belt wheel. The interior of the machine body is rotationally connected with a rotating rod; a second belt wheel is fixedly connected to the middle of the rotating rod. The second belt wheel and the first belt wheel are connected with a conveying belt. The side end of the rotating rod is fixedly connected with a conveying roller; a damping layer is fixedly connected to the conveying rollers; limiting rods are fixedly connected into the conveying rollers. The influence of vibration on the conveying roller can be reduced through the elasticity of the damping layer, the damping rod is downwards pressed by the gravity of the wall plate, so that the pushing and pressing block is downwards pressed and slides, sliding of the pushing and pressing block can be buffered through cooperation of the first elastic piece and the second elastic piece, loss of vibration on the conveying roller can be reduced through cooperation of the damping layer, and therefore the service life of the conveying roller is guaranteed.
Owner:CHANGAN UNIV
Solid-liquid separator
InactiveCN106731085ADoes not block outflowFlow rate limitingStationary filtering element filtersSludgeSewage
The invention discloses a solid-liquid separator which comprises a machine body, a screen, a segment of water distributing trough located in the upper part of the machine body and a segment of mud collecting tank arranged at the lower part of the machine body, wherein a strip screen is adopted as the screen and is formed by arranging multiple rows of strips along the length direction of the machine body at intervals. The arranged water distributing trough plays a buffer role in a conveyed sewage mixture to limit the flow rate, so that the sewage mixture is prevented from being jet due to overlarge pressure or is prevented from being unevenly separated due to an over-high flow rate. By adopting the strip screen, bubbles cannot be easily formed on the surface, and the liquid is not prevented from flowing out, and the left sludge after separation can be timely discharged through the mud collecting tank, so that the solid-liquid separation effect is good.
Owner:江门市海达水净化工程有限公司
Embedded fertilizer box for melia azedarach
InactiveCN111512761AGood stitchingAdjustableDirect liquid fertiliser deliveryAgricultural scienceWater leak
The invention relates to the technical field of fertilizer boxes, and particularly discloses an embedded fertilizer box for melia azedarach. The fertilizer box comprises a buried box, an extension rodand a water injector, wherein the inside of the buried box is of a hollow structure; a water leakage groove is formed in the right side of the buried box and close to the center of the bottom; groundinsertion needles are uniformly and fixedly connected to the bottom of the buried box; a first connecting column is fixedly connected to the center of the top of the buried box, and is of a hollow structure; a butting column is fixedly connected to the center of the bottom of the extension column, and is movably inserted into the center of the first connecting column; an insertion column is fixedly connected to the center of the bottom of the water injector and is movably inserted into the second connection column. Fertilizer can directly reach the inside of soil, roots of the melia azedarachcan absorb the fertilizer conveniently, the utilization rate of the fertilizer is increased, a traditional fertilization manner is replaced, and fertilization efficiency is improved.
Owner:蒙城县林达农业有限公司
Pressure release valve device applicable to pressure gauge
ActiveCN104422557AFlow rate limitingRelieve stressInflated body pressure measurementEngineeringValve seat
The invention relates to a pressure release valve device applicable to a pressure gauge. The pressure release valve device comprises a shell, a pressure release valve assembly and a valve rod, wherein the shell is provided with a connection part, a pressure detection part and an air release part; the pressure detection part is provided with an air channel; the pressure release valve assembly is arranged in the air release part and is provided with a valve seat, a first airtight gasket, a second airtight gasket and a fixed cover; the valve seat is provided with a valve hole; the valve rod is arranged in the pressure release valve assembly in an axial sliding manner and is provided with a first rod part, a valve head and a third airtight gasket; an air release notch is formed in one side of the rod part and the valve head is formed at the inner side end of the rod part; when the valve rod is located at a first position, the valve hole of the valve seat is closed; when the valve rod is located at a second position, the valve hold, the air release notch and the air channel are communicated. The air release notch can be used for slowly releasing air of an inflatable object.
Owner:JIAO HSIUNG IND CORP
Landscape automatic sprinkling device
InactiveCN108770638AAvoid wastingIncrease water pressureWatering devicesCultivating equipmentsWater storageAgricultural engineering
The invention discloses a landscape automatic sprinkling device. The device comprises a main pipeline, an upper connecting port is formed in the upper middle of the main pipeline, a lower connecting port is formed in the lower middle of the main pipeline, water pipe interfaces are formed in both left and right ends of the main pipeline, rubber water pipes are connected with the left sides of the water pipe interfaces, an atomizing plate is embedded in the bottom of the lower connecting port, a water storage pipe is connected with the lower end of the connecting port, a baffle plate is arrangedin the middle of the water storage pipe, an infiltration net is arranged at the bottom of the water storage pipe, a water sprinkling pipe is embedded in the upper connecting port, and a rotary head is arranged above the sprinkling pipe. According to the sprinkling device, the infiltration net is arranged, deep layer soil beneath the ground surface can be moisturized to prevent the loss of water,rapid irrigation can be conducted on trees, the side face of a sprinkling head is of a sector structure, sprinkling holes are distributed in the surface of the sprinkling head in equidistant angles, water sprinkled by the sprinkling head is more uniform, and freshwater resource is saved.
Owner:叶群
CO2 recycling and reusing device after gas well CO2 hydrofracture
InactiveCN105927202AEmission reductionReduce environmental risksFluid removalVapor–liquid separatorFluid control
The invention provides an unloading fluid control device after gas well CO2 fracturing. The device comprises a solid-gas-liquid separator, one end of the solid-gas-liquid separator is connected with a gas well, the lower end of the solid-gas-liquid separator is connected with a collector separating solid and liquid. The air outlet of the solid-gas-liquid separator is connected with a compressor. The other end of the compressor is connected with the inlet of a first-stage separating membrane assembly, and the air outlet on other end of the first-stage separating membrane assembly is connected with a gas outlet. A second-stage separating membrane assembly A is arranged between the first-stage separating membrane assembly and the gas outlet. The air outlet on the lower end of the first-stage separating membrane assembly is also connected with a second-stage separating membrane assembly B. The right end air outlet of the second-stage separating membrane assembly B is connected with the air inlet of the second-stage separating membrane assembly A. Through manifold depressurization and a sand-gas-liquid three-phase separator, the device performs sand strip and dewatering treatment on return unloading fluid, and then through three separating membrane assemblies, CO2 and natural gas (CH4) are separated, so as to achieve objectives of realizing CO2 recycling and comprehensive utilization while reducing CO2 emission.
Owner:PETROCHINA CO LTD
A waste mercury recovery and purification device
ActiveCN105586492BIncrease usageReduce generationProcess efficiency improvementPurification methodsOrganic solvent
The invention discloses a waste mercury recovery and purification device and a use method thereof. The waste mercury recovery and purification device comprises a control mechanism, a vibration sieving mechanism and a filtering and solution storage mechanism. According to the invention, waste mercury solution can be purified through combination and adjustment, thus generation of toxic wastes is reduced, the inventory rate of hazardous wastes is decreased, the cost of experimental materials is reduced, and the usage rate of mercury is increased; the traditional purification method is broken through, and an organic solvent and high-temperature operation or low-temperature operation are not required, thus the purification method is expanded; high-strength polytetrafluoroethylene plastic is used, thus the support strength is ensured, and moreover, the high-strength polytetrafluoroethylene plastic is corrosion-resistant, free from reacting with mercury, light in weight, and convenient to move and carry; and in the invention, a physical sieving method is utilized, and has the advantages of being high in safety, high in purification effect, simple in equipment and method, low in cost, convenient to move, convenient to operate, easy to popularize and use, and the like compared with the existing purification technologies of vacuum distillation, acid-base washing, and the like.
Owner:苏交科集团(江苏)安全科学研究院有限公司
A noise reduction cooling structure for an engine
ActiveCN110259554BFlow rate limitingReduce noiseLiquid coolingExhaust apparatusEngineeringMechanical engineering
The invention discloses a silencing and cooling structure of an engine. The silencing and cooling structure of the engine comprises a silencing tube shell. The surface of the silencing tube shell communicates with a gas inlet tube and a gas outlet tube. The inner wall of the silencing tube shell is fixedly connected with a silencing plate. The surface of the silencing tube shell is fixedly connected with a cooling tube. The surface of the gas inlet tube is fixedly connected with a heat insulation ring. The surface of the heat insulation ring is fixedly connected with a connecting ring. The outer wall of the connecting ring is fixedly connected with an annular water tank. The surface of the annular water tank communicates with the two ends of the cooling tube. The surface of the cooling tube is provided with a micro water pump. The surface of the silencing tube shell communicates with a noise reduction contact tube. The surface of the noise reduction contact tube is fixedly connected with the surface of the cooling tube. According to the silencing and cooling structure of the engine, the annular water tank and the noise reduction contact tube can be used for limiting the flowing speed of gas in the silencing tube shell during device operation, so that noise generated by the flowing speed of the gas in the noise reduction contact tube is reduced, and better heat dissipation and sound insulation effects of a noise reduction device are achieved.
Owner:YANCHENG JIANGDONG GASOLINE ENGINE MFG +1
A device and system for electroplating thin plates
The invention discloses a device and system for electroplating thin sheets. The device comprises an electroplating tank, flow-guiding devices and a first circulating device, wherein the electroplating tank is provided with a backflow channel, a conveying device for conveying electroplated thin sheets is arranged above the backflow channel; the flow-guiding devices are slantwise arranged at both sides of the electroplated thin sheets and located at the position higher than the uppermost ends of the electroplated thin sheets; electroplating metal liquid from an anode device space flows along the surface of the flow-guiding devices to the backflow channel in the electroplating tank at an uniform thickness from flow-guiding inlets; the liquid suction opening of the first circulating device is communicated with the backflow channel and the liquid discharging opening of the first circulating device is communicated with the anode device space. By virtue of the device for electroplating thin sheets disclosed by the invention, the uniform electroplating thickness of the electroplated thin sheets can be ensured, the quality of the electroplating is improved, the labor cost is saved and the production efficiency is improved.
Owner:KUNSHAN DONGWEI MACHINERY CO LTD
Waste gas treatment device with deodorization function
PendingCN114768468AAffect the living environmentFlow rate limitingDispersed particle separationEngineeringEnvironmental engineering
The invention discloses a waste gas treatment device with a deodorization function, and relates to the technical field of waste gas treatment, in particular to the waste gas treatment device with the deodorization function, the waste gas treatment device comprises a deodorization box, a fixing frame is fixedly mounted in an inner cavity of the deodorization box, and a supporting spring is fixedly connected to the inner side of the fixing frame; clamping sleeves are fixedly connected to the inner sides of the supporting springs, and bamboo charcoal plates are arranged on the inner sides of the two clamping sleeves. According to the waste gas treatment device with the deodorization function, a deodorization box is connected to the left end of a second gas supply pipe, four fixing frames are fixedly arranged in the deodorization box in a sleeving manner, a clamping sleeve is connected between the two fixing frames through a supporting spring, and meanwhile, a bamboo charcoal plate is inserted between the two clamping sleeves during use, so that the bamboo charcoal plate can conveniently pass through the clamping sleeves; the two bamboo charcoal plates adsorb peculiar smell in gas entering the spray tower, and the gas is deodorized, so that the discharged gas is prevented from influencing the living environment of surrounding residents.
Owner:广州科威环保工程有限公司
A ddos attack detection system based on software defined network
ActiveCN110336830BReduce the burden onFlow rate limitingCharacter and pattern recognitionTransmissionIp addressAttack
The invention discloses a DDoS attack detection method based on a software-defined network, and belongs to the technical field of software-defined network security defense. The detection system includes an attacking host, a victim host, an OpenFlow switch layer, and an SDN control layer. This method divides the detection process into two parts. First, the flow information passing through the border switch is counted on the switch at the edge of the network. According to the information entropy theory, the destination IP address and the degree of dispersion of single flow distribution are calculated. Alert, limit the flow rate of the relevant port, and start the SVM detection of the controller. By extracting the deep characteristics of the flow, it can detect the abnormal flow more accurately and guide the switch to discard it. The system combines the detection of the data plane and the control plane, improves the response time of the detection, reduces the burden of the controller, and has practical application value.
Owner:SHANDONG UNIV
A detection device and method for non-invasive detection of carbon dioxide level in human blood
ActiveCN104586395BFlow rate limitingEasy to detectRespiratory organ evaluationSensorsExpiration TimePositive pressure
Owner:广州弘凯物联网服务有限公司
Anti-splashing electric ball valve with long service life
PendingCN107524826AGood creep resistanceImprove stabilityPlug valvesOperating means/releasing devices for valvesWater flowEngineering
The invention discloses an anti-splashing electric ball valve with long service life. The anti-splashing electric ball valve with long service life comprises a valve casing body, wherein a valve ball is arranged in a valve body inner cavity of the valve casing body; a rod body of a valve core rotating rod comprises a lower end head and an upper end head; the lower end head and the valve ball are integrated and fixedly arranged; the top of the upper end head passes through the top side wall of the valve casing body; a buffer ring gasket is arranged at a position between the lower end head of the valve core rotating rod and the valve casing body; the cross section of the buffer ring gasket is ring-shaped; a hollow ball is arranged in the inner cavity of a water discharging end; an inclined side plate surface is formed below an anti-skip shift bulge and corresponds to the bottom end surface of the valve casing body; and a ball body limiting point of the hollow ball is formed between the inclined side plate surface and the anti-skip shift bulge. The anti-splashing electric ball valve with long service life has the beneficial effects that the good sealing property and the shock absorption buffering effect can be realized in the rotating process of the whole valve core rotating rod; the manual adjustment is not needed; and a splashing phenomenon caused by excessive water flow is avoided very well.
Owner:FLUOROSEAL SPECIALTY VALVES SUZHOU
Pressure relief valve assembly for pressure gauges
ActiveCN104422557BFlow rate limitingRelieve stressInflated body pressure measurementEngineeringValve seat
The invention relates to a pressure release valve device applicable to a pressure gauge. The pressure release valve device comprises a shell, a pressure release valve assembly and a valve rod, wherein the shell is provided with a connection part, a pressure detection part and an air release part; the pressure detection part is provided with an air channel; the pressure release valve assembly is arranged in the air release part and is provided with a valve seat, a first airtight gasket, a second airtight gasket and a fixed cover; the valve seat is provided with a valve hole; the valve rod is arranged in the pressure release valve assembly in an axial sliding manner and is provided with a first rod part, a valve head and a third airtight gasket; an air release notch is formed in one side of the rod part and the valve head is formed at the inner side end of the rod part; when the valve rod is located at a first position, the valve hole of the valve seat is closed; when the valve rod is located at a second position, the valve hold, the air release notch and the air channel are communicated. The air release notch can be used for slowly releasing air of an inflatable object.
Owner:JIAO HSIUNG IND CORP
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