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30results about How to "No flooding" patented technology
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Offshore floating platform
InactiveCN104943827AStable floatingNo floodingVessel movement reduction by mass displacementFloating buildingsFloating platformTest platform
The invention discloses an offshore floating platform and belongs to the technical field of offshore operations. The offshore floating platform comprises a test platform, a buoyancy structure, a shaking reduction and swinging preventing structure and an mooring structure, wherein the test platform, the buoyancy structure and the shaking reduction and swinging preventing structure are sequentially connected from top to bottom, one end of the mooring structure is connected with the shaking reduction and swinging preventing structure, the other end of the mooring structure is disposed on the sea bed. The offshore floating platform has the advantages that the buoyancy structure is disposed below the test platform to allow the test platform to be able to float on the sea, the test platform needs not to be supported by other structures, the test platform can constantly float on the sea during tide rising or tide falling, the situation that the test platform is submerged by the sea surface or the sea surface is much lower than the test platform is avoided, influence of the heave of the waves on the test platform can be reduced by the shaking reduction and swinging preventing structure, the small-sized test platform can stably float on the sea, and the offshore floating platform is applicable to small-scale offshore operations.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Catalytic electrode of proton exchange membrane fuel cell, battery provided with same and preparation method thereof
ActiveCN106159291AImprove efficiencyReduce performanceCell electrodesFinal product manufactureStart stopWater flooding
The invention relates to a catalytic electrode of a proton exchange membrane fuel cell, a cell provided with the same and a preparation method thereof. The catalytic electrode comprises a conductive carrier layer with a net-shaped structure, and a proton conductive monomer and a catalyst which are located on the surface of the conductive carrier layer and in the net-shaped structure; the thickness of the conductive carrier layer is 1-10 microns; the cell provided with the catalytic electrode adopts the catalytic electrode to replace a cathode catalyst layer; the preparation method comprises the following steps of: S1, manufacturing the conductive carrier layer; S2, supporting a catalyst; S3, supporting the proton conductive monomer; and S4, transferring the conductive carrier layer. Almost catalysts, the proton conductive monomer and a pore can form an effective three-phase interface and the utilization efficiency of the catalyst is greatly improved; a water flooding phenomenon caused by the fact that the thickness smaller than 1 micron does not occur and a phenomenon that the conductive property is decreased, caused by the fact that the thickness is more than 10 microns also does not occur; the fuel cell adopting the catalyst can keep relatively long service life in a frequent starting-stopping automobile application environment.
Owner:SUZHOU HYDROGINE POWER TECH CO LTD
Particle dispensing device for PIV based internal flow field measurement of ventilated cavity
ActiveCN105891539AUniform distribution and continuous supplyEasy to measureFluid speed measurementCavitationEngineering
The invention discloses a particle dispensing device for PIV based internal flow field measurement of a ventilated cavity. A cavitator in the dispensing device includes an enclosed casing, ventilation holes are formed in the lateral side of the cativator, an air inlet pipe connected to the cativator is communicated with an internal cavity, the internal of the cativator includes a particle caching pipe, the lateral side of the particle caching pipe also includes ventilation holes, an air inlet connecting piece connected to the particle caching pipe is communicated with the cavity, the cavity is formed between the external surface of the particle caching pipe and the internal surface of the cativator, an external pipeline is connected with a particle storage pipe, particles are supplemented timely via two control valves and an air source, and thus, the particles can be dispensed continuously and uniformly. The particle dispensing device can be used for researches on ventilation cavitation of different appearances, and provides convenience for measurement and application of a PIV system.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Digital control system for all plant units in nuclear power station and non-nuclear-grade control system and method
ActiveCN102760504AGuaranteed high efficiency and stabilityNo floodingNuclear energy generationNuclear power plant controlAutomatic controlEngineering
The invention discloses a digital control system for all plant units in a nuclear power station and a non-nuclear-grade digital control system and method. The non-nuclear-grade digital control system of each unit comprises a first automatic control subsystem and a first operation monitoring subsystem which are in communication connection; the non-nuclear-grade digital control system in the public supply part comprises a second automatic control subsystem; the first automatic control subsystem comprises a plant bus; information exchange between the second automatic control subsystem and the first automatic control subsystem, as well as between the second automatic control subsystem and the first operation monitoring subsystem, is achieved through the plant bus; and the first automatic control subsystem further comprises a network isolating filter module and is used for forwarding a network message to a station related with a physical address according to the physical address in the network message and preventing the network message from being broadcasted to a unit network irrelevant to the physical address. By implementing the technical scheme of the invention, the high efficiency and the stability of network exchange are guaranteed.
Owner:中广核工程有限公司 +1
Pull-up circuit for IO circuit
ActiveCN108123708ANo floodingPrevent backflowLogic circuits coupling/interface using field-effect transistorsLogic circuit interface arrangementsControl signalEngineering
The invention relates to a pull-up circuit for an IO circuit, which comprises an access control module, a pull-up module and a switch module, wherein the access control module and the pull-up module are connected in series between an IO port and an IO power supply; the switch module generates an access control signal according to an IO port signal and a first interface signal; when the IO port isinput or floated, the voltage value of the IO port signal is equal to the voltage value of the first interface signal; the access control signal is larger than or equal to a difference value between the IO port signal and a preset threshold voltage; an access control module is cut off or conducted under the control of the access control signal and a second interface signal; and the voltage value of the second interface signal is equal to the larger one of the voltage value of the IO power supply and the voltage value of the IO port signal. According to the technical scheme, when the voltage value of the IO port signal is larger than the voltage value of the IO power supply, current can be effectively prevented from flowing backwards from the IO port to the IO power supply; and when the IOport is floated, the requirement that the potential at the IO port can be pulled up to always be larger than the minimum value of the IO logic output high voltage is met.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1
Field-surface levelness profiled hanging system of direct paddy planter
The invention discloses a field-surface levelness profiled hanging system of a direct paddy planter. The field-surface levelness profiled hanging system comprises a hanging frame, a bearing pedestal mechanism, elastic balance mechanisms, a sliding plate and a stander, wherein the lower end of the hanging frame is arranged on the bearing pedestal mechanism and is hinged to the upper ends of the elastic balance mechanisms; the bearing pedestal mechanism is fixed at the upper end of the stander; the lower end of the stander is connected with the lower ends of the elastic balance mechanisms; the sliding plate is arranged at the lower end of the stander. According to the field-surface levelness profiled hanging system of the direct paddy planter, the phenomenon that one end of the sliding plate digs the flat field surface into a pit and the other end of the sliding plate cannot implement ridging due to suspension is avoided, and the phenomena of seed submerging, seed insolation and the like on the field surface are avoided; therefore, the germination rate and the planting percent of rice seeds are increased.
Owner:SOUTH CHINA AGRI UNIV
Hydraulic mixing agitator
InactiveCN110237766ANo leaksNo "flooding"Rotary stirring mixersTransportation and packagingCentral line placementEngineering
The invention discloses a hydraulic mixing agitator. The hydraulic mixing agitator comprises an equal-diameter T-pipe, a rotating shaft, an upper bearing, a lower bearing, blades and a stirring blade, wherein a main pipe of the equal-diameter T-pipe is vertically placed, the upper end of the main pipe is provided with a sealing cover, a rotating shaft is vertically arranged at the center line position of the main pipe, the rotating shaft is provided with 3-5 blades, the height of the blades is smaller than the length of the main pipe of the equal-diameter T-pipe, the diameter of an envelope line of each blade is smaller than the diameter of the main pipe of the equal-diameter T-pipe, the upper end of the rotating shaft passes through the upper bearing and then is fixedly connected with the stirring blade through 4-8 rotating arms, the lower end of the rotating shaft is placed in the lower bearing, and the lower bearing is fixed at the center of an outlet outlet of the equal-diameter T-pipe through 4-8 bearing fixing brackets. By using the hydraulic mixing agitator, the blending of oil in a tank during normal production can be realized, leakage is avoided, furthermore 'flooding' does not occur, a floating tray cannot be impacted, and the floating disc is prevented from getting stuck and sinking.
Owner:SINOPEC GUANGZHOU ENG +1
Method for absorbing and separating ammonia-containing gas by using supergravity enhanced ionic liquid
InactiveCN113041788ARun smoothlyIncrease the gas-liquid contact areaGas treatmentDispersed particle separationNonferrous metalMass transfer rate
The invention relates to a method for absorbing and separating ammonia-containing gas by adopting supergravity enhanced ionic liquid. The method is suitable for absorbing and separating ammonia in industrial ammonia-containing gas such as synthetic ammonia purge gas, melamine tail gas, non-ferrous metal chemical tail gas and the like. According to the method, an atomizing and supergravity environment is provided by utilizing a spray rotating packed bed, and ammonia-containing gas and an ionic liquid absorbent are introduced into the spray rotating packed bed according to a certain proportion at a certain temperature and pressure; and the ionic liquid absorbent and the ammonia-containing gas are in countercurrent / cross-flow contact in the spray rotating packed bed, so that the phase contact area and the interface update rate of the ionic liquid absorbent and the ammonia-containing gas are enhanced, the problem of low mass transfer rate caused by high viscosity of the ionic liquid is solved, and efficient selective absorption of the ionic liquid to ammonia is realized. By adopting the method, the absorption efficiency of ammonia can reach more than 90%. Compared with a traditional packing absorption tower, the method has the advantages of small equipment size, high mass transfer efficiency, low investment and the like.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI +1
Efficient chemical deodorization device and method
PendingCN113996168ALarge amount of processingSmall pressure dropDispersed particle separationAtomized substancesThermodynamicsLiquid storage tank
The invention discloses an efficient chemical deodorization device and method. The device comprises: an absorption liquid storage tank, wherein a reaction pipe is connected to a gas inlet of the absorption liquid storage tank, and a demister connected to a gas outlet of the absorption liquid storage tank; a liquid spraying pipe, wherein the lower end of the liquid spraying pipe is connected with the reaction pipe, and an external fan connected with the upper end of the liquid spraying pipe; and a circulation mechanism, wherein the extraction end of the circulation mechanism is connected with the liquid outlet of the absorption liquid storage tank, and the discharge end of the circulating mechanism is connected with the liquid spraying pipe. According to the efficient chemical deodorization device, a gas-liquid co-flow chemical technology is adopted; and the device is large in treatment capacity, small in pressure drop, free of a flooding phenomenon, and capable of remarkably reducing a tower diameter and a tower height and decreasing the investment cost of the device.
Owner:BEIJING DRAINAGE EQUIP
Hemofiltration sample pad and preparation method thereof
ActiveCN106442079AImprove uniformityImprove solvencyPreparing sample for investigationChemistryAntibody
The invention relates to a hemofiltration sample pad. According to a preparation mode, a certain proportion of human erythrocyte antibodies, trihydroxymethyl aminomethane, casein, polyvinylpyrrolidone, surfactants and the like are prepared into a treatment solution according to different product properties in accordance with different sequences; the prepared solution is subjected to pH regulation so as to form a final treatment solution; the prepared treatment solution is uniformly processed on glass fiber and is put into a 37-DEG C drying box to be dried for 8 to 24 hours. The hemofiltration sample pad prepared by the method has the advantages that the whole blood sample is separated under the condition of not influencing the sample running board; a fast diagnosis reagent subjected to sample feeding has clean background without phenomena such as blood residue traces, flooding, line whitening or rail lines.
Owner:HANGZHOU BIOTEST BIOTECH CO LTD
A filter blood sample pad and its preparation method
ActiveCN106442079BEasy to separateNo blood residuePreparing sample for investigationAntiendomysial antibodiesActive agent
The invention relates to a hemofiltration sample pad. According to a preparation mode, a certain proportion of human erythrocyte antibodies, trihydroxymethyl aminomethane, casein, polyvinylpyrrolidone, surfactants and the like are prepared into a treatment solution according to different product properties in accordance with different sequences; the prepared solution is subjected to pH regulation so as to form a final treatment solution; the prepared treatment solution is uniformly processed on glass fiber and is put into a 37-DEG C drying box to be dried for 8 to 24 hours. The hemofiltration sample pad prepared by the method has the advantages that the whole blood sample is separated under the condition of not influencing the sample running board; a fast diagnosis reagent subjected to sample feeding has clean background without phenomena such as blood residue traces, flooding, line whitening or rail lines.
Owner:HANGZHOU BIOTEST BIOTECH CO LTD
Method and arrangement for locating services in a peer-to-peer network
ActiveCN102668505BAvoid uneven loadDistribute the load evenlyTransmissionDistributed hash tableDistribute hash table
The present invention relates to methods and arrangements for locating services in a structured peer-to-peer distributed hash table, DHT, based, overlay communication network (310). The invention comprises two inter-related methods and nodes. The first method is used by a service node (321) to "advertise" to the overlay network (310) that it is providing a particular service (S1). This is done by distributing instances (351,352,353) of a service object (O1) that are stored in different nodes (331,332,333) in the overlay network (310) and where the instances (351,352,353) comprise an address to the service node (321). The other method is to locate at least one of these instances (351,352,353) with a predetermined probability and with a predetermined number of location request messages (390) from a user node (311) wishing to use the particular service (S1).
Owner:TELEFON AB LM ERICSSON (PUBL)
A novel efficient parallel-flow-impacting wet dedusting tower
A novel efficient parallel-flow-impacting wet dedusting tower is provided. A dedusting device comprises a tower body, cyclone mixers, a gas feeding pipe, a water feeding pipe, liquid distributers, a water discharging pipe, a demister, a circulating pump, connecting pipelines, and the like. Gas and washing water pass through the cyclone mixers in a parallel flow manner at the same direction. The gas and the washing water are fully mixed and impact. Washed dust is discharged from the tower bottom. Clean gas enters the demister to separate entrained mist droplets and is finally discharged from a gas discharging port. The wet dedusting tower has characteristics of good dedusting effects, small systemic resistance, no flooding, small tower size and little water using amount, and can be used for washing and cleaning processes of various kinds of dust-containing gas.
Owner:天津市红特顺科技有限公司
Artificial intelligence intravenous drip group tube instrument
PendingCN114392426AEasy to monitorImprove therapeutic efficacyFlow monitorsIntravenous useApparatus instruments
The invention discloses an artificial intelligent intravenous drip group management instrument, and particularly relates to the technical field of medical instruments, the artificial intelligent intravenous drip group management instrument comprises a battery box, a group management instrument shell is mounted above the battery box, and a monitoring mechanism is mounted in the group management instrument shell; the monitoring mechanism comprises a calculation chip arranged in the group management instrument shell, a storage is installed on one side of the calculation chip, and a single-chip microcomputer is arranged on one side of the storage. The monitoring mechanism is adopted, an audible and visual alarm can give an alarm to remind a person to quickly arrive at the site for treatment when over-speed, over-slow, no medicine and sudden change occur, medicine dripping monitoring is easier, medicine waste caused by needle pulling in advance is avoided, the dripping speed of medicine can be quantified, the treatment effect is improved, and life safety is prevented from being endangered; an on-duty nurse can track the intravenous drip process in real time, frequent occurrence of intravenous drip medical accidents is avoided, and safety and convenience are achieved.
Owner:上海港鲸科技(集团)有限公司 +2
Catalytic electrode for proton exchange membrane fuel cell, battery with same and preparation method
ActiveCN106159291BImprove efficiencyReduce performanceCell electrodesFinal product manufactureStart stopConductive polymer
The invention relates to a catalytic electrode of a proton exchange membrane fuel cell, a cell provided with the same and a preparation method thereof. The catalytic electrode comprises a conductive carrier layer with a net-shaped structure, and a proton conductive monomer and a catalyst which are located on the surface of the conductive carrier layer and in the net-shaped structure; the thickness of the conductive carrier layer is 1-10 microns; the cell provided with the catalytic electrode adopts the catalytic electrode to replace a cathode catalyst layer; the preparation method comprises the following steps of: S1, manufacturing the conductive carrier layer; S2, supporting a catalyst; S3, supporting the proton conductive monomer; and S4, transferring the conductive carrier layer. Almost catalysts, the proton conductive monomer and a pore can form an effective three-phase interface and the utilization efficiency of the catalyst is greatly improved; a water flooding phenomenon caused by the fact that the thickness smaller than 1 micron does not occur and a phenomenon that the conductive property is decreased, caused by the fact that the thickness is more than 10 microns also does not occur; the fuel cell adopting the catalyst can keep relatively long service life in a frequent starting-stopping automobile application environment.
Owner:SUZHOU HYDROGINE POWER TECH CO LTD
Parallel flow wet dust-collecting device and operational method thereof
InactiveCN102671499AGuaranteed uptimeFully purifiedCombination devicesUsing liquid separation agentTowerCirculating pump
The invention provides a parallel flow wet dust-collecting device and an operational method thereof. The dust-collecting device consists of a tower body, a whirlwind mixer, an air inlet pipe, a water inlet pipe, a liquid distributor, a water outlet pipe, a defogger, a circulating pump and a connecting pipeline. Air and washing water enter the whirlwind mixer in a mode of same direction and parallel flow, the air is fully mixed with and impacted by the washing water, the dust removed from the air is discharged from the bottom of the tower, and the clean air enters the defogger to remove the carried fogdrop and is discharged from an air outlet finally. The device has the characteristics of high dust-removing effect, small system resistance, no liquid flooding, small size of tower body and low water consumption, and can be applied to the process of washing and purifying various gases containing dust.
Owner:天津聚贤达科技有限公司
Novel tap
InactiveCN101706004BNo floodingGuaranteed not to come into contact with airPlug valvesWater flowElastic plastic
The invention aims to provide a novel tap with convenient use and good air tightness, which comprises a shell and a through pipe, wherein the shell is in a cylindrical shape of which the upper end is opened; both sides of the upper part of the shell are provided with notches; the lower end of the shell is provided with an outlet; the inside of the shell comprises a middle shell and an inner shell; the middle shell is in a cylindrical shape of which the lower end is opened; both sides of the middle shell are provided with notches; the inner shell is in a conical shape with an opened upper end and a gradually narrowed lower end; both sides of the upper end of the inner shell are fixedly provided with two wings; the lower part of the inner shell is provided with an elastic plastic cover; andthe elastic plastic cover is in a conical shape of which the upper end is opened. The elastic plastic cover has elasticity; and when the two wings deviate from initial positions, the plastic cover plays a role of restoring the two wings, the plastic cover does not cut off water flow but not air flow at the moment of blocking the outlet, the phenomenon of air flow backward cannot be generated, andliquid in storage equipment is ensured not to contact air. The novel tap is simple in structure and low in cost, and achieves the aims of convenient use and good air tightness.
Owner:芦礼祥
Particle spreading device based on measurement of flow field inside piv ventilated cavity
ActiveCN105891539BUniform distribution and continuous supplyEasy to measureFluid speed measurementCavitationEngineering
The invention discloses a particle dispensing device for PIV based internal flow field measurement of a ventilated cavity. A cavitator in the dispensing device includes an enclosed casing, ventilation holes are formed in the lateral side of the cativator, an air inlet pipe connected to the cativator is communicated with an internal cavity, the internal of the cativator includes a particle caching pipe, the lateral side of the particle caching pipe also includes ventilation holes, an air inlet connecting piece connected to the particle caching pipe is communicated with the cavity, the cavity is formed between the external surface of the particle caching pipe and the internal surface of the cativator, an external pipeline is connected with a particle storage pipe, particles are supplemented timely via two control valves and an air source, and thus, the particles can be dispensed continuously and uniformly. The particle dispensing device can be used for researches on ventilation cavitation of different appearances, and provides convenience for measurement and application of a PIV system.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Digital control system and non-nuclear level control system and method for the whole unit of nuclear power plant
ActiveCN102760504BNo floodingImprove efficiencyNuclear energy generationNuclear power plant controlNuclear gradeAutomatic control
Owner:中广核工程有限公司 +1
A hydroponic vegetable ecological breeding mechanism
ActiveCN113197150BPromote absorptionTightly boundPisciculture and aquariaAgriculture gas emission reductionVegetable farmingZoology
A hydroponic vegetable ecological breeding mechanism, which relates to the technical field of vegetable cultivation, includes a platform, a fish pond, a hydroponic breeding box, and a fish tank. A number of hydroponic culture boxes and fish tanks are arranged between them, and the hydroponic culture boxes and the fish tanks are arranged at intervals. The bottom of the fish tank is a funnel-shaped structure, and a vertical pipe is arranged at the bottom of the funnel-shaped structure. The two ends of the connecting pipe are respectively connected with the bottom of the adjacent hydroponic culture box on both sides. There is a vegetable planting plate in the hydroponic culture box. There are vegetable planting holes on the vegetable planting plate, and a flow pump is also provided on the connecting pipe. The hydroponic culture boxes arranged at intervals and the fish tanks are connected end to end to form a closed loop in series through connecting pipes. The invention provides a hydroponic vegetable ecological breeding mechanism, which does not need manual fertilization, can closely combine fish farming and vegetable farming, and implements automatic monitoring and management.
Owner:QINGDAO ACAD OF AGRI SCI
Fireproof double-valve check valve used for common kitchen system flue and provided with drive device
InactiveCN105257872AWon't fail to openThere will be no phenomenon of shutting downOperating means/releasing devices for valvesCheck valvesEngineeringCheck valve
The invention relates to a fireproof double-valve check valve used for a common kitchen system flue and provided with a drive device. The fireproof double-valve check valve comprises a main valve body, an auxiliary valve body, a fireproof valve, a sealing valve and an assembling structure. The fireproof double-valve check valve is characterized in that the driver and a drive linkage mechanism for driving the sealing valve and the fireproof valve are further arranged. By means of the check valve of the structure, the sealing valve and the fireproof valve can be slowly turned on or turned off forcibly, the phenomenon that the sealing valve and the fireproof valve cannot be turned on or turned off completely is avoided, backward flow of smoke is avoided, and the smoke stop and fireproof effects are better.
Owner:GUILIN LIPU CHAOJIN KITCHEN EQUIP CO LTD
Medicine feeder capable of preventing occurrence of medicine choking condition for neurology department
ActiveCN111529395APrevent chokingControl intakeRotary stirring mixersTransportation and packagingNeurology departmentApparatus instruments
The invention relates to the technical field of medical instruments, and discloses a medicine feeder capable of preventing the occurrence of a medicine choking condition for neurology department. Themedicine feeder capable of preventing the occurrence of the medicine choking condition for neurology department comprises a case and a rotating shaft, wherein a liquid outlet pipe is movably connectedoutside the case; a soft case is movably connected outside the case; a jacking rod is movably connected inside the soft case; a toothed rod is movably connected outside the jacking rod; a pipeline ismovably connected inside the case; a piston is movably connected outside the case; and stirring rods are movably connected outside the piston. Under the mutual action among the case, the liquid outlet pipe, the soft case, the jacking rod, the toothed rod and the pipeline, the device can achieve the effect of compressing a liquid level of medicine liquid by extruding the soft case, so that the medicine liquid can be conveyed into the mouth of a patient through a liquid conveying pipe; the medicine feeding is more convenient; in addition, under the display of solution scale lines, the intake quantity of the medicine liquid by the patient can be controlled; and the normal treatment of the patient is ensured. Therefore, the medicine feeder is more suitable for being used under practical conditions.
Owner:JILIN UNIV FIRST HOSPITAL
A kind of pull-up circuit for io circuit
ActiveCN108123708BNo floodingPrevent backflowLogic circuits coupling/interface using field-effect transistorsLogic circuit interface arrangementsControl signalHemt circuits
A pull-up circuit for an IO circuit, comprising: an access control module and a pull-up module, connected in series between an IO port and an IO power supply; a switch module, which generates an access control signal according to an IO port signal and a first interface signal, when the IO When the port is input or floating, the voltage value of the IO port signal is equal to the first interface signal, and the access control signal is greater than or equal to the difference between the IO port signal and the preset threshold voltage; the access control module is controlled by the access control signal and the second interface signal When it is turned off or turned on, the voltage value of the second interface signal is equal to the larger one of the voltage value of the IO power supply and the voltage value of the IO port signal. Through the technical scheme of the present invention, when the signal voltage value of the IO port is greater than the voltage value of the IO power supply, it can effectively prevent the current from flowing backward from the IO port to the IO power supply; when the IO port is floating, it is easier to satisfy the potential at the IO port can be pulled up to always be greater than the minimum IO logic output high voltage requirement.
Owner:SEMICON MFG INT (SHANGHAI) CORP +1
Membrane electrode catalyst layer with gradient pore structure as well as preparation method and application of membrane electrode catalyst layer
PendingCN114122413AGuaranteed wettingGuaranteed proton conductivityCell electrodesFuel cellsPtru catalystPhysical chemistry
The invention relates to a membrane electrode catalyst layer with a gradient pore structure and a preparation method and application thereof, the catalyst layer comprises a macroporous layer (11), a microporous layer (12) and a noble metal catalyst, and the microporous layer (12) is close to one side of a proton exchange membrane (2); the noble metal catalyst comprises a large catalyst and a small catalyst; the macroporous layer (11) comprises a large catalyst; and a small catalyst is contained in the small hole layer (12). At least one transition layer is arranged between the macroporous layer (11) and the microporous layer (12), and the transition layer comprises a large catalyst and a small catalyst. A plurality of transition layers are arranged, and the mass fraction of the large catalyst in each transition layer is gradually reduced layer by layer along the direction from the large hole layer (11) to the small hole layer (12). Compared with the prior art, the method has the advantages that the wetting of the catalyst layer and the proton conduction capability in the catalyst layer are ensured, and the battery performance is high.
Owner:上海氢晨新能源科技有限公司
Blow-in preventive prefabricated smoke flue
The invention relates to a fireproof smoke exhaust flue assembly, in particular to a blow-in preventive prefabricated smoke flue for houses. The blow-in preventive prefabricated smoke flue comprises a square through pipe. A smoke inlet is formed in the square through pipe, the square through pipe comprises fire-resistant plates, glass fiber sandwich layers are arranged inside the fire-resistant plates, a smoke guide barrel which is integrally connected with the square through pipe is arranged at an outlet of the smoke inlet, a platy fire-resistant cover plate which is used for closing the smoke inlet is arranged on a side of the smoke inlet and is close to the smoke guide barrel, the upper portion of the fire-resistant cover plate is hinged onto the square through pipe, the smoke guide barrel is arranged along a flow direction of the smoke flue, reinforcing ribs are arranged at the bottom of the smoke guide barrel, and a smooth transition protrusion is arranged on the outer side of an outlet in the upper portion of the smoke guide barrel. According to the technical scheme, the blow-in preventive prefabricated smoke flue has the advantages that the blow-in preventive prefabricated smoke flue is high in strength, and smoke can be prevented from being blown in the blow-in preventive prefabricated smoke flue.
Owner:重庆市泰日建材有限公司
Neurology drug feeder to prevent choking
ActiveCN111529395BAvoid chokingControl intakeRotary stirring mixersTransportation and packagingApparatus instrumentsSurgery
The invention relates to the technical field of medical devices, and discloses a neurology medicine feeder for preventing the occurrence of drug choking, comprising a casing and a rotating shaft. The inside of the soft shell is movably connected with an ejector rod, the outside of the ejector rod is movably connected with a toothed rod, the inside of the shell is movably connected with a pipe, the outside of the shell is movably connected with a piston, and the outside of the piston is movably connected with a stirring rod; Under the interaction between the tube, the soft shell, the ejector rod, the toothed rod and the pipeline, the device can squeeze the soft shell to achieve the effect of compressing the liquid level of the liquid medicine, so that the liquid medicine can be delivered to the liquid through the infusion tube. It is also more convenient to feed the medicine in the patient's mouth, and under the display of the solution scale line, the patient's liquid intake can be controlled to ensure the normal treatment of the patient, which is more suitable for use under actual conditions.
Owner:JILIN UNIV FIRST HOSPITAL
Chimney hood capable of preventing smoke backward flowing and promoting indoor outdoor air exchange
The invention discloses a chimney hood capable of preventing smoke backward flowing and promoting indoor outdoor air exchange. The chimney hood comprises an upper hood body, a top cover, a lower hoodbody, supporting rods I and a clamping part, wherein the upper hood body is in the shape of a cone of which an opening is upward; the top cover covers the opening of the upper hood body; the lower hood body is right positioned below the upper hood body; the upper part of the lower hood body is in the shape of a cone of which an opening is upward; an interval is reserved between the lower hood bodyand the upper hood body; the lower part of the lower hood body is tubular; the upper part and the lower part are integrally welded; the supporting rods I are positioned between the upper hood body and the lower hood body; the two ends of the supporting rods I are fixedly connected with the upper hood body and the lower hood body separately; and the clamping part sleeves the lower part of the lower hood body. According to the chimney hood, gases in a chimney can be smoothly exhausted in a strong wind condition, and air does not backward flow; and besides, when no flue gas exists in the chimney, the gases in the chimney are exhausted under the action of negative pressure, indoor air pressure is smaller than external air pressure, the effect that indoor air and external air exchange is achieved, and indoor air maintains fresh.
Owner:TAISHAN UNIV
Method and arrangement for locating services in a peer-to-peer network
ActiveCN102668505AAvoid uneven loadDistribute the load evenlyTransmissionComputer scienceDistributed hash table
The present invention relates to methods and arrangements for locating services in a structured peer-to-peer distributed hash table, DHT, based, overlay communication network (310). The invention comprises two inter-related methods and nodes. The first method is used by a service node (321) to ''advertise' to the overlay network (310) that it is providing a particular service (Sl). This is done by distributing instances (351,352,353) of a service object (01) that are stored in different nodes (331,332,333) in the overlay network (310) and where the instances (351,352,353) comprise an address to the service node (321). The other method is to locate at least one of these instances (351,352,353) with a predetermined probability and with a predetermined number of location request messages (390) from a user node (311) wishing to use the particular service (Sl).
Owner:TELEFON AB LM ERICSSON (PUBL)
Parallel flow wet dust-collecting device and operational method thereof
InactiveCN102671499BSmall diameterSave materialCombination devicesUsing liquid separation agentTowerCirculating pump
The invention provides a parallel flow wet dust-collecting device and an operational method thereof. The dust-collecting device consists of a tower body, a whirlwind mixer, an air inlet pipe, a water inlet pipe, a liquid distributor, a water outlet pipe, a defogger, a circulating pump and a connecting pipeline. Air and washing water enter the whirlwind mixer in a mode of same direction and parallel flow, the air is fully mixed with and impacted by the washing water, the dust removed from the air is discharged from the bottom of the tower, and the clean air enters the defogger to remove the carried fogdrop and is discharged from an air outlet finally. The device has the characteristics of high dust-removing effect, small system resistance, no liquid flooding, small size of tower body and low water consumption, and can be applied to the process of washing and purifying various gases containing dust.
Owner:天津聚贤达科技有限公司
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