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41results about How to "No pressure drop" patented technology
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System and method for dispensing a filtered liquid
InactiveUS20080067120A1Clarify and disinfect waterNo pressure dropCapsTreatment involving filtrationFiltration mechanismBiomedical engineering
A liquid filtration and dispensing system stores a liquid, such as water or another beverage, filters the liquid with an integrated component, and dispenses the filtered liquid for use, such as for drinking. The liquid filtration and dispensing system includes a dispenser body for storing a liquid or fluid to be filtered and / or dispensed from the system. A filtration assembly, also known as a “cartridge”, couples to the dispenser body, and includes a filtration mechanism, or space for inserting a filtration mechanism, for filtering liquid stored in and / or expelled from the dispenser body. The filtration assembly may be removable and replaceable once spent. A dispenser capping element couples to the filtration assembly to seal and contain the filtration assembly, and includes a discharge opening for dispensing a filtered liquid from the system. The filtration assembly may also include an air vent assembly to facilitate dispensing of the liquid.
Owner:HYUNDAI AIR & WATER TECH
Continuous concentration device of traditional Chinese medicine thermal-refluxing extracting liquid
InactiveCN101422660AAccelerate evaporationIncrease the concentration ratioPharmaceutical product form changeLiquid solutions solvent extractionRefluxHigh density
The invention relates to a Chinese medicine hot reflux extracting solution continuous enrichment device and the extraction, enrichment an evaporation of Chinese medicine. The device comprises an extracting tank (1), a filter (2), a middle liquid medicine tank (3), a liquid medicine pump (4), a rotary thin film evaporating concentrator (5), a concentrated solution receiving tank (6), a first condenser (7), a second condenser (8), a solvent receiving tank (9) and a vacuum system (10). A liquid medicine outlet of the extracting tank (1) is communicated with a liquid medicine inlet of the filter(2); the liquid medicine outlet of the filter is communicated with the liquid medicine inlet of the middle liquid medicine tank (3); the liquid medicine outlet of the middle liquid medicine tank is communicated with the liquid medicine outlet of the liquid medicine pump (4); the liquid medicine outlet of the liquid medicine pump is communicated with the liquid medicine inlet of the rotary thin film evaporating concentrator (5); steam produced in the extracting tank (1) is sent to the first condenser(7); the condensed hot fluid in the first condenser(7) is switched into the extracting tank (1); and a high density concentration solution extractum outlet of the rotary thin film evaporating concentrator(5) is communicated with the concentrated solution receiving tank (6). The device is characterized by short heating time, low temperature, stable evaporation capacity and comparatively small amount of solvent, which can realize continuous evaporation and concentration.
Owner:吕江强
Barrel type filtering assembly
InactiveCN101874948ASmall water capacityNo pressure dropStationary filtering element filtersBarrel ShapedWater layer
The invention discloses a barrel type filtering assembly. The assembly comprises an outer barrel, an inner barrel and multilayer barrel-shaped filter layers, wherein the multilayer barrel-shaped filter layers are arranged between the outer barrel and the inner barrel; the upper end and the lower end of the outer barrel are provided with sealing components which are connected with the outer barrel, the inner barrel and the upper ends and the lower ends of all the filter layers in a sealing way; thick water layers with annular spaces are arranged between the outer barrel and the adjacent filter layer, between the adjacent filter layers, and between the inter barrel and the adjacent filter layer; a filtrate flow channel is formed inside each filter layer; the heads and the tails of all the thick water layers and the inner barrel are communicated from the outer side to the inner side sequentially; the outer barrel is provided with a thick water inlet; and the inner barrel is provided with a thick water outlet. The barrel type filtering assembly is provided with the multilayer filter layers; and compared with other filtering assemblies with the same volume, the barrel type filtering assembly has the advantages of large filtering area, variational flowing directions of the thick water among all the layers, good filtering effect, wide application range, and convenient disassembly.
Owner:付灵芝
Guide blade or stator blade, and air treatment device having the same
ActiveCN102728470AReduce power consumptionNo pressure dropExternal electric electrostatic seperatorElectrostatic separation detailsLow noiseAir treatment
The invention relates to a guide blade or a stator blade, and an air treatment device having the guide blade or the stator blade. The guide blade or the stator blade comprises a wheel hub, blades and a wheel cover, wherein the blades are distributed on the wheel hub and / or the wheel cover at certain intervals along the circumferential direction. Structural characteristics of the guide blade or the stator blade are that: the blades comprise a first group of blades and a second groups of blades; the two groups of the blades have conductive properties; the first group of the blades and the second group of the blades are staggeredly distributed and insulated, and are not conducted; the first group of the blades and the second group of the blades are respectively applied with high potential and low potential so as to form a charged high voltage space between the first group of the blades and the second group of the blades, the high voltage space forms a dust removing channel, and the dust removing channel can effectively adsorb dust particles flowing through the dust removing channel. The blade and the device of the present invention have characteristics of simple and reasonable structure, high dust absorption efficiency, low resistance, low power consumption, low noise and no pressure loss. In addition, with the blade and the device of the present invention, air delivery, air pressure and efficiency of a fan can be effectively improved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Centrifugal wind wheel and air treatment device with same
ActiveCN102614987AReduce power consumptionNo pressure dropExternal electric electrostatic seperatorElectrostatic separation detailsHigh potentialElectricity
Disclosed are a centrifugal wind wheel and an air treatment device with the same. The centrifugal wind wheel comprises a base plate, a motor mounting hole, blades and a reinforcing frame or wheel cover, one ends of the blades are distributed on the base plate at certain intervals along a peripheral direction, the other ends of the blades are fixed on the reinforcing frame or wheel cover along the peripheral direction, the blades comprise a first group of blades and a second group of blades, both the two groups of blades have conduction characteristics, and the first group of blades and the second group of blades are distributed in a mutually staggered manner, are insulated from each other and are not conducted; and high potential and low potential are respectively applied to the first group of blades and the second group of blades, a high-voltage charging place is formed between the first group of blades and the second group of blades which are staggered mutually and forms a dust removal channel, and the dust removal channel can effectively absorb dust particles in airflow flowing through the dust removal channel. The centrifugal wind wheel and the air treatment device with the same have the advantages of simple and reasonable structure, high dust absorption efficiency, low resistance, electricity consumption and noise and zero pressure loss.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Axial flow wind wheel, manufacturing method of axial flow wind wheel and air treating device
InactiveCN102773166AReduce power consumptionNo pressure dropExternal electric electrostatic seperatorElectrostatic separation detailsHigh potentialUltrasound attenuation
The invention discloses an axial flow wind wheel, which comprises a wheel hub and blades, wherein the blades are distributed at certain intervals on the outer cylindrical surface of the wheel hub made of an insulating material; the blades are partitioned into a first group of blades and a second group of blades; the two groups of blades are distributed in a staggered way, have conduction characteristics and are insulated from each other; and a high potential and a low potential are applied to the two groups of blades respectively. The invention further provides a manufacturing method of the axial flow wind wheel and an air treating device provided with the axial flow wind wheel. The air treating device can be used for collecting dust particles in air flow, and has the advantages of low power consumption, freeness from pressure drop, low noise, high deashing efficiency, convenience in using, long service life, freeness from attenuation of the deashing efficiency, and the like.
Owner:MIDEA GRP CO LTD
Zero loss depth current-limiting protection device based on head wave breaking technology
InactiveCN107171277AFast actionIncrease breaking marginHigh-tension/heavy-dress switchesAir-break switchesDispersityVoltage drop
The invention discloses a zero-loss deep current-limiting protection device based on first-wave breaking technology, which includes a protection device body and high-speed switches distributed inside the protection device body; device, display and control, indicator light, button, analog plate, observation window and nameplate, and the inner side of the protection device body is provided with a through-bus bar, a supporting insulator, a quick switch, a first current transformer, a second current transformer and two contact boxes , wherein the through busbar is connected to one of the contact boxes through the supporting insulator, the other contact box is connected to the second current transformer through the first current transformer, and the two contact boxes are connected through a fast switch. The invention has fast action speed, strong breaking capacity, good current limiting effect of the current-limiting reactor, no energy loss, no voltage drop, and no leakage magnetic field, long service life, reliable performance, small action dispersion, and no switching on. rebound.
Owner:安徽恒凯电力保护设备有限公司
Saturated bridge type short circuit fault current limiter
ActiveCN103633632AImprove current limiting performanceLimit fault currentEmergency protective arrangements for limiting excess voltage/currentBridge typeEngineering
The invention discloses a saturated bridge type short circuit fault current limiter, which comprises a saturated reactor and a rectifier bridge. The connecting point of a first diode (D1) and a second diode (D2) of the rectifier bridge (Br) is a first alternating current end (A); the connecting point of a third diode (D3) and a fourth diode (D4) of the rectifier bridge (Br) is a second alternating current end (B); the connecting point of the first diode (D1) and the third diode (D3) of the rectifier bridge (Br) is a first direct current end (M); the connecting point of the second diode (D2) and the fourth diode (D4) of the rectifier bridge (Br) is a second direct current end (N); the saturated reactor (L) is connected between the first direct current end (M) and the second direct current end (N); one end of an alternating current power supply (Uac) is connected to the first alternating current end (A); the other end of the alternating current power supply (Uac) is grounded; one end of a circuit breaker (SW) is connected to the second alternating current end (B); the other end of the circuit breaker (SW) is connected with a load (RL) in series and is then grounded. The saturated reactor is realized by a permanent magnet and a direct current coil.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Gas-water separator, preparation method thereof and fuel cell device
PendingCN112843884AHolding pressure setting timeNo pressure dropDispersed particle separationFuel cellsFuel cellsThermal insulation
The invention discloses a gas-water separator, a preparation method thereof and a fuel cell device. The gas-water separator comprises a water separator cavity, a heating and draining electromagnetic valve and a thermal insulation material, the gas-water separator cavity comprises an inner cavity, an outer cavity and a cavity; the cavity is arranged between the inner cavity body and the outer cavity body, and the cavity is filled with a thermal insulation material; a liquid storage chamber is arranged at the bottom of the inner cavity; the outer cavity is provided with a hydrogen inlet, a hydrogen return outlet and a drainage outlet which are connected with the inner cavity; the inner cavity is provided with a first-stage baffle and a second-stage baffle; a connecting hole shell is arranged at the bottom end of the water separator cavity and provided with a heating drainage electromagnetic valve, an inlet of the heating drainage electromagnetic valve is connected with a connecting hole, and the heating drainage electromagnetic valve has the functions of timing drainage, exhaust and efficient heating. According to the gas-water separator, the preparation method thereof and the fuel cell device provided by the invention, the separation efficiency can be improved, and the fluid pressure loss can be reduced.
Owner:上海燃锐新能源汽车技术有限公司
Novel water shortage determining method for no-flow sensor constant pressure water supply system
ActiveCN107687418ANo pressure dropImprove accuracyPump testingFluid pressure measurementEngineeringFrequency reduction
The invention discloses a novel water shortage determining method for a no-flow sensor constant pressure water supply system. In the case that a water inlet pipe of a water pump is short in water, thewater pump operates by reducing the frequency and does cause reducing of the pressure of a water outlet due to the fact that a check valve is arranged; in the case that the water inlet pipe has water, frequency reduction of the water pump leads to significant reducing of the pressure; but in the case that a user closes a valve, frequency reduction of the water pump does not lead to reducing of the water pressure, so that frequency increasing processing is required, if the increasing frequency pressure can increase, it means that the valve is closed, otherwise water shortage occurs.
Owner:宁波德业变频技术有限公司
Hybrid short-circuit fault current limiter and current limiting method
ActiveCN108599121AReduce running lossImprove economyEmergency protective arrangements for limiting excess voltage/currentElectronic switchConductor Coil
The invention relates to a hybrid short-circuit fault current limiter and a current limiting method. The hybrid short-circuit fault current limiter comprises a current transfer branch and a fault current limiting branch, wherein the current transfer branch comprises a rapid mechanical switch and a power electronic switch in series. In a steady state, a current passes through the current transfer branch, and the loss during normal running is reduced; when a fault occurs, a switch on the transfer branch acts, and the current is transferred to the fault current limiting branch; the fault currentlimiting branch comprises a dual-split reactor and a switch, and a first winding of the dual-split reactor is connected in series with the switch and is connected in parallel with a second winding; the switch is switched on in the steady state, and the fault current limiting branch shows low impedance; and the switch is switched off when the fault occurs, and the fault current limiting branch shows high impedance. By matching of the current transfer branch and the fault current limiting branch, the loss of the current limiter during normal running is reduced, meanwhile, fault current limitingis achieved by the dual-split reactor, and running economy and reliability of the current limiter are improved.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Method and device for converting small-amplitude alternating-current signal into direct-current signal
InactiveCN104660243AThere is no signal distortion problemNo pressure dropLogic circuit coupling/interface arrangementsDistortionVIT signals
The invention belongs to the technical field of weak signal processing, and specifically provides a method and a device for converting a small-amplitude alternating-current signal into a direct-current signal. The device comprises a zero-crossing comparator (1), a switch switching circuit (2), a processor (3) and a rectifying and filtering circuit (4). The method comprises the following steps that: when the small-amplitude alternating-current signal is in a positive half cycle or a negative half cycle at present, the zero-crossing comparator (1) correspondingly outputs a high level or a low level; the processor (3) detects a level signal output by the zero-crossing comparator (1); and the switch switching circuit (2) is controlled to overturn the negative half cycle of the small-amplitude alternating-current signal in order to convert the small-amplitude alternating-current signal into the direct-current signal. The device is simple in structure; very weak alternating-current signals can be processed; and the problem of signal distortion is solved.
Owner:XIAN DINGZI ELECTRONICS INFORMATION SCI & TECH
Integral catalyst for selectively oxidizing CO in hydrogen-rich reformed gas
The invention discloses a catalyst for selectively oxidizing CO in hydrogen-rich reformed gas, in particular relates to an integral catalyst for selectively oxidizing the CO in the hydrogen-rich reformed gas, and belongs to the field of CO preferential oxidization catalysts. The active component of the catalyst is Ru, the content of which is 0.1 to 2 weight percent calculated by Ru; a catalytic auxiliary agent is one or more of alkali metal oxides or / and alkaline earth oxides; the molar ratio of the Ru to the alkali metal oxides or / and metal elements of the alkali metal oxides is 1-20:1; and the rest component is a dichroite carrier coated with alumina gel, wherein the content of the alumina gel accounts for 2 to 10 weight percent of the content of the catalyst. The integral catalyst has the characteristics of high activity, high CO selection, low content of noble metal, low ignition temperature, wide temperature range, and capacity of being conveniently applied to a fuel cell system,and can deeply eliminate the CO in the reformed gas and provide clean fuel for fuel cells.
Owner:HANERGY TECH
Centrifugal vortex type ballast water filtering device with self-adaptive cleaning function
ActiveCN111204891AEfficient separationNo pressure dropWater/sewage treatment by centrifugal separationWater treatment parameter controlCentrifugationWater filter
The invention relates to a centrifugal vortex type ballast water filtering device with a self-adaptive cleaning function, which comprises a filter cartridge assembly, a water suction pump, a filter screen filter cartridge, a sewage collection assembly and a pressure control assembly. The filter cartridge assembly is composed of two cascade conical vertical filter cartridges, and internal spiral threads are arranged on the inner surfaces of the conical vertical filter cartridges. The water suction pump is arranged at the front end of an inlet of a first-stage conical vertical filter cartridge.The filter screen filter cartridge is arranged at a water outlet of a second-stage conical vertical filter cartridge. The sewage collection assembly comprises a sewage discharge pipeline communicatedwith sewage discharge outlets of the two stages of conical vertical filter cartridges simultaneously, sewage discharge valves arranged at the sewage discharge outlets, a sewage suction pump arranged on the sewage discharge pipeline and a sewage collector. The pressure control assembly is used for achieving self-adaptive control over the opening degree of the sewage discharge valves at the sewage discharge outlets, the power of the water suction pump and the power of the sewage suction pump. Compared with the prior art, the centrifugal vortex type ballast water filtering device has the advantages of effective separation of large-particle impurities, no by-product after separation, high ballasting efficiency, physical centrifugation, high automation degree, simple operation and the like.
Owner:SHANGHAI JIAO TONG UNIV
Cross flow wind wheel and air treatment device with same
ActiveCN102644622AReduce power consumptionNo pressure dropPump componentsDeodrantsLow noiseElectric machine
The invention relates to a cross flow wind wheel which comprises shafts, shaft sleeves and blades; the blades are arranged to be a circular shape at intervals along a circumferential direction; both ends of the blades are provided with left end plates and right end plates for fixing the blades; the shafts and the shaft sleeves are respectively arranged on the left end plates and the right end plates; the middle parts of the blades are provided with more than one middle division board capable of reinforcing the rigidity of the blades; the blades comprise a plurality of groups of first blades and second blades, which can be connected with high-voltage power supplies and are conductive; the potentials of the two groups of blades are different, and the two groups of blades are mutually staggered and are not communicated; and a high-voltage dust removal channel which can absorb micro particles which flow through the airflow in the channel is formed between the two groups of blades. An air treatment device with the cross flow wind wheel comprises a shell body which consists of a volute casing and a volute tongue and the cross flow wind wheel; the cross flow wind wheel is connected into the shell body through the rotation of a motor; and the air treatment device also comprises a corona discharge device which can enable the micro particles in the airflow to be charged or a negative ion emission ionization device, and is connected with the high-voltage power supply. The invention has the characteristics of simple and reasonable structure, high dust collection efficiency, small resistance, low power consumption, low noise and no pressure loss.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Liquid distributor assembly and air conditioner comprising same
ActiveCN107062713AFrosting evenlyEven defrostingMechanical apparatusFluid circulation arrangementVapor–liquid separatorHeating effect
The invention relates to the field of air conditioners, in particular to a liquid distributor assembly and an air conditioner comprising same. The liquid distributor assembly comprises a liquid distributing head, wherein a liquid collecting hole is formed in one end of the liquid distributing head; a plurality of liquid distributing holes are formed in the other end of the liquid distributing head; the liquid distributing holes communicate with a liquid distributing tube of a heat exchanger; a gas-liquid separator with a refrigerant outflow hole is arranged at the upstream side of the liquid collecting hole; and the refrigerant outflow hole communicates with the liquid collecting hole. In order to solve the technical problems that a liquid distributor in the prior art is uneven in frosting and defrosting and is not good in heating effect as a gas-liquid mixture entering each liquid distributing tube of a heat exchanger is inconsistent in proportion, the invention provides the liquid distributor assembly which is more even in frosting and defrosting and is better in heating effect as well as the air conditioner comprising the liquid distributor assembly.
Owner:GREE ELECTRIC APPLIANCES INC
A liquid separator assembly and its air conditioner
ActiveCN107062713BFrosting evenlyEven defrostingMechanical apparatusFluid circulation arrangementVapor–liquid separatorHeating effect
Owner:GREE ELECTRIC APPLIANCES INC
A new water shortage judgment method for constant pressure water supply system without flow sensor
ActiveCN107687418BNo pressure dropImprove accuracyPump testingFluid pressure measurementFrequency reductionEngineering
Owner:宁波德业变频技术有限公司
Preparation method for integral catalyst for selectively oxidizing CO in hydrogen-rich reformed gas
InactiveCN101569860AHigh selectivityHigh activityCatalyst carriersFuel cell auxillariesWater bathsAlkaline earth metal
The invention discloses a preparation method for an integral catalyst for selectively oxidizing CO in hydrogen-rich reformed gas, and belongs to the field of CO preferential oxidization catalyst preparation. The preparation method for the catalyst comprises the following steps: dissolving salt of Ru and salt of soluble alkali metal or / and alkaline-earth metal in a nitric acid solution, and preheating the mixed solution in a water bath; steeping a dichroite carrier coated with alumina gel in the preheated solution for 5 to 10min, drying the dichroite carrier, preroasting the dichroite carrier at a temperature of between 100 and 160 DEG C for 1 to 3h and then roasting the dichroite carrier at a temperature of between 300 and 1,000 DEG C for 2 to 5h at the atmosphere of inert gases; and reducing the obtained product at a temperature of between 300 and 800 DEG C for 2 to 5h at the atmosphere of H2-inert gas mixture. The method has simple preparation process and low cost; and the obtained catalyst has the characteristics of high activity, high CO selection, low content of noble metal, low ignition temperature, wide temperature range, and capacity of being conveniently applied to a fuel cell system.
Owner:HANERGY TECH
Plant and method for liquefying natural gas
InactiveCN101120220AReduce the likelihood of uneven distributionImprove efficiencySolidificationLiquefactionProcess engineeringDistributor
The present invention relates to a plant (10) for liquefying natural gas (90) , the plant (10) at least comprising: - a pre-cooling heat exchanger train (1) comprising a final heat exchanger (2a) for cooling the natural gas stream (90); - a distributor (4) located upstream of the final heat exchanger for splitting the natural gas stream (90) into at least first and second natural gas substreams; - at least first and second main cryogenic systems (200,200') , each system (200,200') comprising an outlet for liquefied natural gas (95,95').
Owner:SHELL INT RES MAATSCHAPPIJ BV
Furnace lid inversion and furnace lid installing process
The invention relates to the field of industrial capital construction and large part installation, provides a furnace lid inversion and furnace lid installing process and overcomes the influence on furnace lid hoisting and mounting operation after a plant roof and a rainproof system are formed so as to safely and conveniently hoist and install a furnace lid. The furnace lid inversion and furnace lid installing process comprises an electric furnace shop formed by a steel structure, a roof and a defensive system, a furnace housing installed in place and including sectioned furnace lids of a peripheral section furnace lid, a middle section furnace lid and of a central section furnace lid, a flat cart for transferring the sectioned furnace lids to a storage yard in a site, a movable hoisting device for hoisting and installing the sectioned furnace lids, a main winch hoisting system formed by a main winch and a cooperating main winch pulley set, an auxiliary winch hoisting system formed byan auxiliary winch and a cooperating auxiliary winch pulley set, an inversion chain for correcting the moving directions of the sectioned furnace lids in the sectioned furnace lid hoisting and installing process, and also comprises a furnace lid inversion and utilization movable hoisting device and a technology for installing a furnace lid through cooperation of winches and pulley sets.
Owner:CHINA 19TH METALLURGICAL CORP
Low-power-consumption main and auxiliary power supply automatic switching circuit
PendingCN113131606AReduce lossNo pressure dropPower network operation systems integrationInformation technology support systemVoltage dropControl theory
The embodiment of the invention provides a low-power-consumption main and auxiliary power supply automatic switching circuit which comprises a main power supply module, a power supply switching module, an auxiliary power supply module and a power supply output module, the output end of the main power supply module is connected with the first end of the power supply switching module, and the output end of the auxiliary power supply module is connected with the second end of the power supply switching module. The input end of the power supply output module is connected with the third end of the power supply switching module, the power supply switching module is used for realizing automatic switching between the main power supply module and the auxiliary power supply module through an MOS tube, when the main power supply module is connected with a power supply, the power supply output module is connected with the main power supply module through the power supply switching module, and the voltage of the main power supply module is output. When the main power supply module is not connected with the power supply, the power supply output module is connected with the auxiliary power supply module through the power supply switching module, and the voltage of the auxiliary power supply module is output. According to the embodiment of the invention, the whole circuit almost has no voltage drop, and the loss of the whole circuit is reduced.
Owner:浙江航芯科技有限公司
Engine intake manifold
ActiveCN102953877AReduce intake resistanceImprove sound qualityInternal combustion piston enginesCombustion-air/fuel-air treatmentCylinder headAir filter
An engine intake manifold is used for matching the intake swirl to an engine under different operating conditions in order to enhance the comprehensive performance of the engine. The engine intake manifold comprises an inlet end flange, a pressure-stabilizing cavity, intake branches, an outlet end flange and an intake swirl regulation mechanism, the front end surface of the inlet end flange is connected with an intake connecting pipe behind an air filter of an engine, the rear end of the inlet end flange is connected with the air inlet of the pressure-stabilizing cavity, the pressure-stabilizing cavity is of a two-piece type butt joint structure, the group of intake branches are arranged on the sidewall opposite to the air inlet of the pressure-stabilizing cavity, the rear ends of the intake branches are connected with the outlet end flange, the axes of the intake branches make the included angle of 135 degrees with the axis of the outlet end flange, and the outlet end flange is connected with the intake passage of the cylinder head of the engine. The structure of the engine intake manifold is simple, and is compactly arranged, and the engine intake manifold can meet the requirement of the lightweight design of automobile engines, reasonably guide intake flow and improve the power performance, economic performance and emission indexes of engines.
Owner:GREAT WALL MOTOR CO LTD
Single-phase heavy-current compound switch and control method thereof
ActiveCN104426150AExtended service lifeNo pressure dropReactive power adjustment/elimination/compensationReactive power compensationCapacitanceControl signal
Provided in the invention is a single-phase heavy-current compound switch comprising a housing, a socket and a circuit structure. The circuit structure consists of a control signal access terminal, an input control module, a power supply module, a power supply access terminal, an NE555 monostable control module, a zero-crossing output control module, a thyristor module, a capacitor connection terminal, a relay control module, a magnetic latching relay and a main loop access terminal. According to the the single-phase heavy-current compound switch, the thyristor is connected to a circuit in a zero voltage state and the response time is less than 20ms; and the circuit is disconnected in a zero current mode. No impulse and surge currents occur during the connection and disconnection processes and the response speed is fast. The bearing is carried out by switching to a contact of an alternating-current contactor within 50ms of thyristor conduction; no voltage drop and no loss are cause; no heat radiator is needed to be installed; and the service life of the compound switch is prolonged. The single-phase heavy-current compound switch with the dustproof sealed iron housing design is suitable for dynamic switching of a heavy-current single-phase compensation capacitor in a dusty environment.
Owner:深圳市华冠电气有限公司
Cambered-surface sector-shaped cylinder with strip-shaped net
InactiveCN102688730AImprove wear resistanceImprove high temperature resistanceChemical/physical processesEngineeringWear resistance
Disclosed is a cambered-surface sector-shaped cylinder with a strip-shaped net, comprising a plurality of sector-shaped supporting rings, a supporting ring connecting frame, an arc-shaped back housing plate, and net strips, wherein the plurality of sector-shaped supporting rings are equidistantly arranged inside the supporting ring connecting frame uniformly and welded on the supporting ring connecting frame, the plurality of net strips are arranged at set intervals and welded on the equidistantly arranged sector-shaped supporting rings to form a cambered-surface sector-shaped strip-shaped net, and the arc-shaped back housing plate is fixedly connected with the supporting ring connecting frame. According to the invention, as the arc-shaped back housing plate is adopted and thickened, the wear resistance and the high temperature resistance of a back plate is improved. The formed cambered-surface sector-shaped strip-shaped net has a good impact resistance, a good distortion resistance, a good bending resistance and a good tensile resistance and has no deformation, cracking or the like when the temperature is changed. In addition, the strip-shaped net is axially arranged and gaps are uniform and vertical, so the pressure drop is avoided, the flow resistance of a catalyst is reduced and the friction and the collision to the catalyst are reduced. The service life of the cambered-surface sector-shaped cylinder with a strip-shaped net of the invention is more than 20 years.
Owner:LIAONING QIANGSEN SIFTER MFG
Cross-flow wind wheel and air treatment device with cross-flow wind wheel
ActiveCN102644622BReduce power consumptionNo pressure dropPump componentsDeodrantsLow noiseCorona discharge
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
A Furnace Cover Inversion and Furnace Cover Installation Process
Owner:CHINA 19TH METALLURGICAL CORP
A Centrifugal Vortex Ballast Water Filtration Method with Adaptive Cleaning Function
ActiveCN111204891BEfficient separationNo pressure dropWater/sewage treatment by centrifugal separationWater treatment parameter controlFiltrationCentrifugation
Owner:SHANGHAI JIAO TONG UNIV
Blade cascade for a flow engine and flow engine comprising said blade cascade
ActiveCN102084089BEasy to manufactureImprove efficiencyBlade accessoriesMachines/enginesLeading edgeEngineering
The invention relates to a blade cascade for a flow engine, especially a steam turbine, comprising a plurality of profiled blades, especially profiled rotor blades (1), having an intake side (SS), a pressure side (DS), a median line (Sk) and a chord length (s) between a blade leading edge and a blade trailing edge. The invention is characterized in that a quotient of the chord length (s) for a maximum height (fSS) of the intake side (SS) is between 0.53 and 0.55, a maximum height (fDS) of the pressure side (DS) is between 0.19 and 0.21, a maximum height (fSk) of the median line (Sk) is between 0.36 and 0.38, a diameter (Dmax / s) of a maximum circle extending between the intake and the pressure side is between 0.34 and 0.36, its distance between centers (xDmax / s) is between 0.37 and 0.39, its height in the center (fxDmax / s) is between 0.35 and 0.37, a diameter (De / s) of its leading edge circle (3) is between 0.025 and 0.045, a diameter (Da / s) of a trailing edge circle (4) is between 0.01 and 0.02, a radius of curvature of the intake side (SS) at a distance (XRkSS0.1) of 0.1 times the chord length (s) is between 0.39 and 0.41, a radius of curvature of the intake side (SS) at a distance (XRkSS0.75) of 0.75 times the chord length (s) is between 0.83 and 0.85, a radius of curvature of the pressure side (DS) at a distance (XRKD0.15) of 0.15 times the chord length (s) is between 0.74 and 0.76, and / or a radius of curvature of the pressure side (DS) at a distance (XRkDS0.80) of 0.80 times the chord length (s) is between 0.55 and 0.57.
Owner:MAN ENERGY SOLUTIONS SA
Trapezoidal distributing cylinder with strip-shaped net
InactiveCN102688729AImprove wear resistanceImprove high temperature resistanceChemical/physical processesShock resistanceWear resistance
Disclosed is a trapezoidal distributing cylinder with a strip-shaped net, comprising trapezoidal support plates, a support plate connecting frame, an arc-shaped back shell plate and net strips. The plurality of trapezoidal support plates are equidistantly arranged inside the support plate connecting frame with equal distance and are welded on the support plate connecting frame, the plurality of net strips are arranged at a set distance and welded on the plurality of trapezoidal support plates arranged at an equal distance to form a strip-shaped net, and the arc-shaped back shell plate is fixedly connected to the support plate connecting frame. The distributing cylinder in the invention adopts a thickened arc-shaped back shell plate, which improves wear resistance and high temperature resistance of the back shell plate. The formed trapezoidal strip-shaped net with an arc surface has good shock resistance, good resistance to twisting and bending, and high tensile strength, and will not be deformed or cracked when temperature changes. Being axially arranged with uniform and vertical gap, the strip-shaped net will not produce a pressure drop, which reduces flow resistance of catalysts and reduces friction and collision applied to the catalysts. The distributing cylinder provided by the invention has a service life of more than 20 years.
Owner:LIAONING QIANGSEN SIFTER MFG
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