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45results about How to "Reduced flow area" patented technology
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Oil baffle structure, rotor assembly, motor and compressor
ActiveCN119616822AReduce oil discharge ratereduce refluxMagnetic circuit rotating partsPositive displacement pump componentsElectric machineMechanical engineering
The invention provides an oil baffle structure, a rotor assembly, a motor and a compressor, the oil baffle structure is used for cooperating with a rotor core for use, and the rotor core is provided with a circulation hole which partially generates backflow when operating at a first rotating speed; the oil blocking structure comprises a movable blocking piece, and the movable blocking piece is used for being connected with the rotor iron core so as to be driven by the rotor iron core to rotate together and move to a first position relative to the rotor iron core when the rotor iron core operates at a first rotating speed. At the first position, the movable blocking piece blocks at least part of the circulation holes where backflow occurs. According to the technical scheme of the invention, as the movable blocking piece can block the circulation hole where backflow occurs when the rotor iron core operates at the first rotating speed such as high speed, the circulation area of the backflow circulation hole can be reduced, backflow is reduced, and the oil spitting rate of the compressor is reduced.
Owner:ZHUHAI LANDA COMPRESSOR +1
Organic extraction device for preparing organic framework material
InactiveCN119524469AGood dispersionreduce distanceRotary stirring mixersTransportation and packagingControl engineeringProcess engineering
The invention discloses an organic extraction device for preparing an organic framework material, and relates to the technical field of extraction devices. Comprising an extraction tank, the extraction tank is provided with an upper feeding port, a lower feeding port, an upper discharging port and a lower discharging port, and fixing rings distributed in a linear array mode are installed in the extraction tank; the fixed shell is rotationally connected to the extraction tank; the plurality of first telescopic shells and the plurality of second telescopic shells are embedded in the fixed shell; the first turntable is in limited sliding connection with the fixed shell; and the second turntable is connected to the fixed shell in a limiting and sliding manner. By detecting the concentration of an organic component in a stock solution, when the concentration of the organic component is increased, the distance between the first turntable and the second turntable and the fixed ring is reduced, so that the flow area of liquid in the extraction tank is reduced, a higher shearing force is generated when the solution flows, the dispersion degree of liquid drops of the solution is increased, and the extraction efficiency is improved. The mixing speed of the stock solution and the extractant is accelerated, and the mass transfer efficiency is improved.
Owner:SHANDONG PETROCHEMICAL INST
Intelligent endoscope storage cabinet
The utility model provides an intelligent endoscope storage cabinet, and relates to the technical field of endoscope storage equipment, a cavity of a cabinet body is separated by a placing plate, spaces for placing endoscopes are formed by the placing plate and the side wall of the cavity, and cabinet doors are arranged on two opposite sides of each space, so that when people take or place the endoscopes, the cabinet doors can be used for storing the endoscopes. Only the cabinet door in one space needs to be opened, and only the space of the cabinet door part is used for ventilation, so that the ventilation area is greatly reduced. The first side, provided with the cabinet door, of the cabinet body is used for taking out the endoscope, the second side, provided with the cabinet door, of the cabinet body is used for placing the endoscope, then the endoscope taking environment and the endoscope placing environment are separated, the endoscope taking side is used for a patient after taking out the endoscope, the environment of the endoscope taking side is relatively clean, and the endoscope placing side is an endoscope used by the patient. Although the medical staff performs cleaning or disinfection treatment, the endoscope taking environment and the endoscope placing environment are separated relative to the endoscope with some bacteria or viruses, so that the clean environment and the dirty environment are separated, and the influence of the environment on the endoscope is reduced.
Owner:SHANDONG JIEMEI MEDICAL TECH CO LTD
A gas and air mixing device and method incorporating an ejector
The application discloses a kind of gas and air mixing device and mixing method combined with injection, gas flow passage is provided in the mixing device, including gas nozzle and injection structure in sequence according to the direction of gas flow passage, the injection structure is used to carry out partial premixing with gas and be injected air, including in sequence communication suction chamber, mixing section, diffuser section, outlet section, the gas nozzle is communicated with suction chamber, outlet section is provided with swirl device for generating swirl.The application utilizes the momentum of gas jet to inject atmospheric air, carries out partial premixing in advance in injection structure, realizes the sufficient premixing of gas and be injected air before being ejected, mixing distance is short, has the effect of helping to reduce nitrogen oxides emissions generated in industrial combustion process, conforms to the development trend of environmental protection.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Anti-flashback nozzles and gas turbines
The present invention discloses an anti-flashback nozzle and a gas turbine, wherein the anti-flashback nozzle comprises a nozzle body and an adjusting member, wherein the nozzle body has a fuel channel and a plurality of fuel spray holes, the fuel spray holes are connected to the fuel channel, and the adjusting member is arranged in the fuel spray holes to adjust the flow area of the fuel spray holes, and the gas turbine comprises an anti-flashback nozzle. When flashback occurs, the adjusting member expands and deforms, and the adjusting member reduces the flow area of the fuel spray holes, thereby reducing the fuel flow rate to prevent the flashback from further deteriorating, thereby playing a role in flashback protection. When the flashback is eliminated, the adjusting member shrinks and deforms to a normal shape, and the flow area of the fuel spray holes returns to a normal size, and the fuel flow rate is adjusted back. Thus, the complex flashback protection method of sensor feedback control is effectively replaced, and the difficulties caused by arranging sensors in the narrow space of the combustion chamber nozzle and the problem of flashback protection reliability caused by the sensors are avoided.
Owner:STATE POWER INVESTMENT GRP BEIJING RENEWABLE ENERGY TECH DEV CO LTD +2
Device beneficial to improving dust removal rate in waste heat boiler
ActiveCN224121273UReduced flow areareduce carry outLighting and heating apparatusThermodynamicsFlue gas
The device comprises an ash hopper shell, a flue is arranged on the outer side of the ash hopper shell, a plurality of hanging lug plates are symmetrically arranged on the inner walls of the two sides of the ash hopper shell, and a flow guide plate is arranged between every two corresponding hanging lug plates. According to the invention, the ash bucket structure in which the plurality of hanging lug plates and the guide plates are matched with each other is arranged in the ash bucket shell, so that a flow field can be changed by utilizing the additionally arranged guide plates, and dust in flue gas can be prevented from being directly taken out of the ash bucket shell by bypassing the flow field; moreover, due to the arrangement of the guide plate, the through-flow area of the ash bucket shell is reduced, the flow velocity of the flue gas is increased, the flue gas has a larger turn under the flow field deviation action of the guide plate, and the dust can be thrown to the bottom of the ash bucket shell to be deposited under the action of centrifugal force and gravity, so that the capture and the sedimentation of the dust are facilitated. And meanwhile, the contact area between the flue gas and the ash bucket shell is increased due to the arrangement of the guide plate, so that dust is better captured.
Owner:GRAND BLUE ENG TECH CO LTD +1
Water supply assembly and household appliance with same
PendingCN119615574Aguaranteed water supplyGuaranteed uptimeTableware washing/rinsing machine detailsOther washing machinesLaundry washing machineWater source
The invention relates to the technical field of household appliances, in particular to a water supply assembly and a household appliance with the water supply assembly, and aims to solve the problem that washing water in a washing machine is sucked back to a tap water supply system due to negative pressure accidentally generated by the tap water supply system in the prior art. In order to achieve the purpose, a first water supply pipe of the water supply assembly is connected with a water source, a second water supply pipe is connected with a water containing cavity, and a communication device comprises a body, a first branch pipe connected with the first water supply pipe, a second branch pipe connected with the second water supply pipe and a third branch pipe communicated with air. According to the communicating device, water entering the first branch pipe from the first water supply pipe sequentially flows into the water containing cavity through the body and the second branch pipe, and water entering the second branch pipe from the second water supply pipe is discharged through the third branch pipe. The communication device is arranged between the first water supply pipe and the second water supply pipe, so that normal water supply is ensured, and water in the water containing cavity can be prevented from being sucked back to the water source side when negative pressure appears on the water source side.
Owner:QINGDAO HAIER WASHING MASCH CO LTD +1
Valve device
PendingCN121953543AReduced flow areameet job needsValve members for absorbing fluid energyFluid circulation arrangementRefrigerantVALVE PORT
The valve device comprises a valve body, a valve rod, a valve element and a throttling element, the throttling element, the valve element and at least part of the valve rod are all arranged in the valve body, the throttling element is provided with a first valve port wall, the valve body is provided with a second valve port wall, and the diameter of at least part of the first valve port wall is smaller than that of the second valve port wall; the valve rod comprises a rod part and a transmission part fixed to the rod part, the transmission part protrudes out of part of the periphery of the rod part in the radial direction of the valve rod, the rod part abuts against the valve element, and the transmission part and the throttling element are spaced or abut against each other; in the valve opening state of the valve device, the valve element and the first valve port wall are spaced, the throttling piece abuts against the second valve port wall, or the valve element and the first valve port wall are spaced, the throttling piece and the second valve port wall are spaced, and the refrigerant flow of the valve device meets the requirements for small flow and large flow.
Owner:ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
High-altitude fire-fighting spray manifold filter
PendingCN121846750Aeasy to moveReduced flow areaFire rescueStationary filtering element filtersFire sprinklerStructural engineering
The invention relates to the technical field of filters, in particular to a high-altitude fire-fighting spray manifold filter which comprises a connector, a filter outer cylinder, a filter inner cylinder, a reset spring and a hydraulic plate, the connector with the left end located on the left side of the filter outer cylinder is fixedly installed on the inner side of the left end of the filter outer cylinder, and a limiting ring table is arranged on the inner side of the right end of the filter outer cylinder; a filter inner cylinder is arranged on the inner side of the left portion of the filter outer cylinder corresponding to the position between the connector and the limiting ring table, an installation ring groove is formed in the outer side of the right end of the filter inner cylinder, a reset spring with the right end located on the right of the filter inner cylinder is installed in the installation ring groove, and the right end of the reset spring abuts against the left side of the limiting ring table. The filtering device is reasonable and compact in structure and convenient to use, and impurities are intercepted in the filtering inner cylinder by arranging the filtering plate; by arranging the guide key block and the guide key groove, the inner filter cylinder and the outer filter cylinder are prevented from rotating in the circumferential direction, so that the inner sewage discharge hole and the outer sewage discharge hole are prevented from being staggered in the circumferential direction, and the filter has the characteristics of stability, reliability and good filter effect.
Owner:PETROCHINA CO LTD
Compressor radial air entraining device with adjustable drum hole flow area
PendingCN122083028AReduced flow areaIncrease the circulation areaPump componentsPump installationsMechanical engineeringPhysics
The invention discloses an air compressor radial air entraining device with the adjustable drum hole flow area, and belongs to the technical field of air compressor air entraining systems, the air compressor radial air entraining device comprises a rotating main shaft, the periphery of the rotating main shaft is sequentially sleeved with a first-stage movable disc, a drum and a second-stage movable disc, a plurality of air entraining through holes are formed in the peripheral face of the drum, and the air entraining through holes are communicated with the first-stage movable disc. A blocking piece is arranged in the drum, and the blocking piece can adjust the flow area of the drum. The device has the effect of adjusting the flow area of the drum.
Owner:BEIHANG UNIV
Bottom ring for calcium carbide production
The utility model belongs to the technical field of electric furnace production equipment, and mainly relates to a bottom ring for calcium carbide production, which is formed by splicing four arc-shaped plates end to end in the circumferential direction, a cooling channel is arranged in each arc-shaped plate, and a plurality of turbulent flow blocks are arranged in the cooling channels. The turbulent flow blocks are arranged in the cooling channel so as to reduce the flow area of the cooling channel, according to the Bernoulli's law, when a cooling medium flows to the position where the turbulent flow blocks are arranged, the flow speed of the cooling medium can be increased, more cooling medium can flow through the cooling channel in unit time, and the cooling efficiency is improved. The cooling medium can take away more heat in unit time, so that the temperature of the bottom ring is reduced, and the service life of the bottom ring is prolonged.
Owner:SHAANXI COAL & CHEM IND GRP SHENMU ENERGY DEVELOPME
Flow detection device for breathing machine and breathing machine
ActiveCN224193880Ureduce flow rateGuaranteed stabilityRespiratorsType ventilatorMechanical engineering
The flow detection device comprises a shell, an airflow channel is arranged in the shell, and an air resistance structure is arranged in the airflow channel so that the airflow channel can be divided into an air inlet section located on one side of the air resistance structure and an air outlet section located on the other side of the air resistance structure. The air resistance structure is at least provided with a ventilation grid part in the middle area of the airflow channel, the shell is provided with a detection opening corresponding to the air inlet section and provided with a detection pipe extending into the air outlet section corresponding to the air outlet section, and the tail end of the detection pipe extends to the ventilation grid part to detect airflow passing through the ventilation grid part. The ventilation grating part is separated to form a plurality of airflow passing ports arranged in an array mode, airflow can be divided into a plurality of strands to pass through when passing through, the stability of the flow state of the airflow can be guaranteed, and the airflow can pass through the detection pipe in the air outlet section in a laminar flow state. The detection pipe can cross a viscous area close to the channel wall to directly detect the airflow in the central area of the airflow channel.
Owner:JIANGSU YUYUE MEDICAL EQUIP&SUPPLY CO LTD +2
Stacked full-immersion energy storage device
ActiveCN222619849UReduced flow areaavoid liquiditySecondary cellsTemperature controlElectrical battery
The utility model discloses a stackable full-immersion energy storage device which comprises a compartment body and a battery assembly installed in the compartment body. The battery assembly comprises at least one layer of battery pack; each layer of battery pack comprises a column of battery monomers arranged along the X direction, and tabs are respectively arranged on the front end surfaces and the rear end surfaces, vertical to the Y direction, of the battery monomers; a front temperature control flow channel, a rear temperature control flow channel, a left temperature control flow channel and a right temperature control flow channel which are mutually independent are respectively arranged between the front end surface, the rear end surface, the left side surface and the right side surface of the battery assembly and the compartment body; the front temperature control flow channel, the rear temperature control flow channel, the left temperature control flow channel and the right temperature control flow channel penetrate through the upper end and the lower end of the battery assembly; a gap is formed between every two adjacent battery monomers belonging to the same layer of battery packs, and a gap channel is formed in the battery assembly and penetrates through the upper end and the lower end of the battery assembly. And flowability control is carried out on different runners, so that the temperature control performance and the temperature equalization performance are improved.
Owner:九环储能科技有限公司
A water flow booster joint, high pressure water jet and pile machine apparatus
The application discloses a water flow pressure boosting joint, a high-pressure water jet and a pile machine device. The water flow pressure boosting joint is arranged at a water outlet of a water flow pipeline and comprises a joint main body and a first damping member. The joint main body is assembled on the water flow pipeline and is connected with the water flow pipeline and the first damping member. The first damping member is provided with a pressure boosting channel which is contracted in a direction away from the water outlet. The joint main body is used for assembling the water flow pressure boosting joint on the water flow pipeline, and the water flow is guided into the pressure boosting channel in the first damping member. After the water flow is compressed in the pressure boosting channel, the water flow has sufficient flow rate to wash hard soil, so that the drilling and digging resistance is reduced and the drilling and digging efficiency is improved.
Owner:ZHAODI GROUP CO LTD
Self-cleaning type biological rotating disc sewage treatment equipment
ActiveCN224172600UHigh shear forceEasy to disengageSemi-permeable membranesWater contaminantsBiofilmWater flow
The utility model relates to the technical field of biological rotating disc sewage treatment, in particular to self-cleaning type biological rotating disc sewage treatment equipment which comprises a biochemical tank, a rotating disc device and a driving device, the biochemical tank is provided with a water inlet and a water outlet, the rotating disc device is arranged in the biochemical tank, and the rotating disc device comprises a rotating shaft and a plurality of discs arranged on the rotating shaft. The driving device is connected with the rotating shaft, the cleaning device comprises a supporting assembly and an elution assembly, the elution assembly is arranged corresponding to the interval space, the supporting assembly is used for driving the elution assembly to extend into the interval space, and the elution assembly comprises a first pressurizing baffle; therefore, the water flow in the interval space is pressurized and accelerated. The elution assembly is driven by the supporting assembly to extend into the interval space between the adjacent discs, so that the water flow in the interval space is pressurized and accelerated, the shearing force of the water flow on the biological membrane on the discs is improved, and the biological membrane is promoted to be separated from the discs.
Owner:ZHEJIANG SUYAN TECH CO LTD
Water pipe connector for battery liquid cooling system and battery liquid cooling system
ActiveCN222527098USmall flow resistanceReduced flow areaSleeve/socket jointsSecondary cellsElectrical batteryLiquid cooling system
The utility model discloses a water pipe connector for a battery liquid cooling system and the battery liquid cooling system.The water pipe connector is used for connecting a liquid cooling box body and a liquid cooling pipe of the battery liquid cooling system, the water pipe connector comprises a first connector section and a second connector section which are sequentially connected in the axial direction of the water pipe connector, and the water pipe connector is connected with the liquid cooling box body through the first connector section; the second connector section is connected with the liquid cooling pipe; the first connector section comprises a first interface, a first flow channel and a second interface which are sequentially distributed in the axial direction of the first connector section and are communicated with one another, the first interface is matched with the connecting end of the liquid cooling box body, the second interface is matched with the connecting end of the liquid cooling pipe, and the radial size of the first flow channel is gradually reduced in the direction from the first interface to the second interface. According to the water pipe connector, the interfaces of different shapes of the liquid cooling box body and the liquid cooling pipe can be switched, and the flow resistance between the liquid cooling box body and the liquid cooling pipe is reduced.
Owner:CONTEMPORARY SYNLAND TECHNOLOGY CO LTD
A pulsating vacuum steam sterilizer
ActiveCN116271124BReduced flow areareduce demandFood processingLavatory sanitoryMechanical engineeringMedical device
Owner:INGRAM TECH (NANTONG) CO LTD
Plunger type oil well pump for oil field exploitation
PendingCN121828181Areduce pressure differenceExtend the effective discharge stroke lengthPositive displacement pump componentsFlexible member pumpsOil fieldPressure difference
The invention relates to the technical field of oil well pumps, in particular to a plunger type oil well pump for oil field exploitation. Comprising a pump cylinder, a fixed valve seat is detachably connected to the lower end of the pump cylinder, a fixed valve is placed in the fixed valve seat, a traveling valve seat is slidably connected to the interior of the pump cylinder in a sealed mode, a traveling valve is placed in the traveling valve seat, an installation cylinder is slidably connected to the interior of the traveling valve seat, and a lower positioning frame is fixedly connected to the inner side of the installation cylinder; the lower positioning frame makes contact with the lower portion of the traveling valve, and the mounting cylinder drives the traveling valve to move through the lower positioning frame. The installation cylinder actively controls the traveling valve to move and controls the traveling valve to actively relieve blocking of the traveling valve seat in the down-stroke period, so that when crude oil containing natural gas is extracted, the pressure difference needed by opening of the traveling valve seat is reduced, the invalid stroke generated due to gas compression is shortened, the effective liquid drainage stroke length of the plunger is prolonged, and the safety performance of the plunger is improved. And the fullness coefficient and the oil pumping efficiency of the pump are improved.
Owner:DONGYING H&H MFG CO LTD
Air supply device with adjustable flow area of prewhirl blade channel of aero-engine
PendingCN121952728AIncrease the circulation areaReduced flow areaTurbine/propulsion engine coolingGas supplyMoving parts
The invention discloses an air supply device with an adjustable flow area of a prewhirl blade channel of an aero-engine, and belongs to the technical field of aero-engines, the air supply device comprises a static part, a rotating part and a blade disc part, the static part comprises a fixed disc and an outer static disc, and the rotating part comprises a driving disc and an auxiliary disc; the blade disc component comprises a fixed part and a movable part, the fixed part comprises a blade disc body, a plurality of fixed blades are fixed to the peripheral face of the blade disc body and arranged along the periphery of the blade disc body at equal intervals, and the movable part comprises a plurality of movable blades. The movable blades are arranged in the circumferential direction of the blade disc body at equal intervals and correspond to the fixed blades in a one-to-one mode, blocking pieces are arranged on the side faces, close to the corresponding fixed blades, of the movable blades, and driving pieces used for driving the movable blades to rotate in the circumferential direction of the blade disc body are arranged on the fixed disc. The application has the effect of adjusting the flow area of the pre-whirl blade channel.
Owner:BEIHANG UNIV
Vehicle structural component and vehicle
This disclosure relates to a vehicle structural component and a vehicle. The vehicle structural component includes a support member disposed in the wheel area of the vehicle and connected to the vehicle body. The support member includes a support member body and a first protrusion disposed on the support member body. The first protrusion and the support member body form a first airflow channel, which is located at the front end of the support member along the longitudinal direction of the vehicle. By providing the first airflow channel, airflow can pass through the vehicle structural component, which is beneficial to improving the aerodynamic performance of the vehicle. Furthermore, the first airflow channel is defined by the support member as a complete structure, which is beneficial to the first airflow channel having good structural stability, to the first airflow channel avoiding the need for other structures of the vehicle, and to the first airflow channel being concealed.
Owner:XIAOMI EV TECH CO LTD
Heating flow control device for low load production of coke oven
The utility model relates to the field of coke oven production technology, a kind of coke oven low load production heating flow control device, a kind of coke oven low load production heating flow control device, including flow orifice plate, the inside of flow orifice plate is equipped with first flow-through hole, the surface of flow orifice plate is equipped with first recess, the inside of first recess is provided with gasket, the inside of gasket is equipped with second flow-through hole, the bottom wall of first recess is equipped with glue dropping groove;The utility model is pasted gasket of specific inner diameter on minimum flow orifice plate, effectively reduces the flow area of flow orifice plate, realizes the fine adjustment of heating flow under low load condition, and the actual operation verifies that flow control precision can improve 89.96%, greatly improves the stability and uniformity of coke oven heating, simultaneously with the setting of glue dropping groove, extrusion ring, give way slot, second recess, extrusion protrusion and other structures, further guarantee the bonding strength of adhesive, sealing effect is higher, easy operation.
Owner:NILEKE COUNTRY RUIXIANG COKING CO LTD
Housing assembly, indoor coil unit, indoor temperature regulating unit and air conditioning system
PendingCN122792775AReduced flow areaImprove popularization efficiency
The application provides an outer shell assembly, an indoor coil unit, an indoor temperature regulating unit and an air conditioning system. The outer shell assembly is applied to an indoor coil unit. The outer shell assembly has a unit air inlet which is connected with an air outlet of a furnace. A shielding device is arranged in the unit air inlet. The shielding device comprises a plurality of sliding baffles. Each sliding baffle can be forced to translate from the outside to the inside of the unit air inlet to reduce the flow area of the unit air inlet and form a matching air inlet with a smaller flow area than the unit air inlet. The shape and size of the matching air inlet are matched with the shape and size of the air outlet of the furnace. The product has good compatibility, meets the industry demand for rapid deployment and maintenance of the product, and is beneficial to improving the popularization efficiency and user experience of the coil unit system.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Motor and vehicle
ActiveCN224218194UEven heat dissipationImprove cooling effectCooling/ventillation arrangementSupports/enclosures/casingsElectric machineAxial distance
The utility model discloses a motor and a vehicle, the motor comprises a shell and a guide plate, the shell is provided with a cooling flow channel, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the cooling flow channel and located at the two axial ends of the shell, and the guide plate is arranged in the cooling flow channel; the axial distance between every two adjacent flow guide plates adjacent to the liquid outlet is smaller than the axial distance between every two adjacent flow guide plates adjacent to the liquid inlet. Therefore, the cooling flow channel and the heat source are limited in the motor through the shell, the cooling liquid is injected into the cooling flow channel, and the multiple flow guide plates are arranged in the flowing direction of the cooling liquid, so that the flow area closer to the liquid outlet is smaller and the flow speed of the cooling liquid is higher by changing the distance between the adjacent flow guide plates. Therefore, the heat exchange efficiency between the cooling liquid close to the liquid outlet area and the heat source can be compensated, so that the cooling flow channel can uniformly dissipate heat of the motor, and the phenomenon that the cooling liquid close to the liquid outlet area is difficult to cool the motor is prevented.
Owner:BEIJING ELECTRIC VEHICLE
Water hammer arrestor
ActiveCN224592929UReduced flow areaavoid rising too fast
The utility model relates to the field of fluid pipeline system discloses a water hammer elimination jar, including first chamber, first chamber is set up with the water inlet and outlet, second chamber is set up with pressure regulating mouth, and second chamber is used for accommodating positive pressure gas. The inlet and outlet passage is linked with first chamber and second chamber, and at least part inlet and outlet passage is formed into throttle section. The closing valve core is arranged in the inlet and outlet passage, when first chamber is filled with liquid, closes the inlet and outlet passage. The throttling device is arranged in the throttle section and can be telescopic along the axial direction of the inlet and outlet passage, when the closing valve core opens the inlet and outlet passage and the pressure in first chamber rises, the throttling device is elongated / contraction, to reduce the flow area of first inlet and outlet passage. The water hammer elimination jar can reduce the dissolution and consumption of gas, thereby avoiding the need to frequently supplement the air pressure in the water hammer elimination jar, the operation and maintenance cost are lower, and can prevent the water hammer of pressure rise.
Owner:ANHUI REDSTAR VALVE
Vapor deposition reactor
ActiveCN224280448UReduced flow areareduce air pressureChemical vapor deposition coatingThermodynamicsMechanical engineering
This invention provides a vapor deposition reactor, comprising a furnace body, a container, a first inlet channel, an outlet channel, and a differential pressure regulating unit. The furnace body has a furnace cavity inside; the container is located in the furnace cavity and has a reaction chamber inside, while the furnace cavity outside the container forms a heating chamber; one end of the first inlet channel extends into the container and connects to the reaction chamber, and the other end is used to connect to an external reaction gas source; one end of the outlet channel connects the reaction chamber and the heating chamber, and the other end connects to the outside of the furnace body; the differential pressure regulating unit includes at least a first regulating unit, which is used to regulate the flow area of the outlet channel.
Owner:YONGJIANG LAB
Buffering mechanism for guide sleeve of hydraulic oil cylinder
ActiveCN224200902UReduced flow areaincrease flow resistanceFluid-pressure actuatorsVibration suppression adjustmentsHydraulic cylinderStructural engineering
The utility model discloses a hydraulic oil cylinder guide sleeve buffering mechanism which comprises a cylinder body, a guide sleeve is fixedly installed on the inner wall of the upper end of the cylinder body, a piston rod is movably connected to the inner wall of the guide sleeve in an attached mode, and a movable piston is fixedly installed on the outer curved surface of the lower end of the piston rod. The front sides of the upper and lower ends of the cylinder body are fixedly communicated with an upper oil port and a lower oil port in a penetrating manner; an annular oil groove is formed in the middle of the lower end of the guide sleeve, upper buffer grooves are formed in the two sides of the lower end of the guide sleeve, upper communicating openings are formed in the inner sides of the upper ends of the upper buffer grooves, upper adjusting openings are formed in the outer sides of the upper ends of the upper buffer grooves, and upper adjusting pipes fixedly communicate with the outer sides of the upper adjusting openings. The inner wall of the upper adjusting pipe is in threaded connection with an upper adjusting bolt, and the outer curved surface of the outer side of the upper adjusting bolt is in threaded connection with an upper adjusting nut used for locking and fastening the upper adjusting bolt. When the piston rod stretches out and draws back to the end point for buffering, the buffering resistance can be adjusted conveniently.
Owner:JIANGSU WENDA TRANSMISSION TECH CO LTD
Hydraulic rotary damper and control method thereof
The application provides a hydraulic rotary damper and a control method thereof, and relates to the technical field of mechanical damping shock absorption and structural safety protection. The hydraulic rotary damper comprises a shell assembly, a rotor, a vane, a flow cutoff plate and a damping adjustment system. The flow cutoff plate and the vane divide an internal working cavity into a first chamber and a second chamber filled with hydraulic damping oil. A throttling channel is formed in the flow cutoff plate to communicate the two chambers. The damping adjustment system is composed of a pressure sensor, a throttle valve rod, a servo pressure regulating motor and a controller. The controller drives the servo pressure regulating motor to axially displace the throttle valve rod according to the pressure signal fed back by the pressure sensor in real time, changes the flow area of the throttling channel, and realizes dynamic stepless adjustment of damping force. Through closed-loop feedback regulation, the application can be used for offline batch fine adjustment to solve the performance dispersion problem, and can also adaptively match the wind load change in real time during operation, thereby improving the system reliability and power generation efficiency.
Owner:NINGBO SEVERSTROM INTELLIGENT MANUFACTURING CO LTD
Tundish argon evacuation device
The utility model belongs to metallurgical industry steel -making production equipment technical field, especially for a tundish argon emptying device, including support rod, the front side of support rod is welded with argon tube. The utility model discloses through control motor drives screw rod reverse rotation, makes the adjustment rod drive trapezoidal block move to the direction of approaching trapezoidal groove, and the clearance between trapezoidal block and trapezoidal groove reduces, and the flow area of argon through through -hole reduces, and the flow of argon also reduces along with it, avoids because argon flow too big and leads to tundish temperature fluctuation too big, influences molten steel quality, when needing to increase argon flow, control motor drives screw rod rotation, makes the adjustment rod drive trapezoidal block move to the direction of moving away from trapezoidal groove, and the clearance between trapezoidal block and trapezoidal groove increases, and the flow area of argon through through -hole increases, makes the flow of argon increase, can more quickly discharge the air in tundish, can flexibly adjust argon flow according to actual production demand, and effectively improves the gas flow field of argon in tundish.
Owner:ANSHAN HUIXIN CASTING CO LTD
A power battery terminal and cell with a fusible protection structure
ActiveCN224437877UReduced flow areaLarge resistance
This utility model belongs to the field of power battery safety technology, and discloses a power battery terminal and cell with a fusible protection structure. The terminal includes a terminal body, which comprises a substrate layer and a fusible layer stacked on top of each other. The fusible layer has a hollowed-out fusible area, within which at least one cavity is formed. A high-resistivity material layer is deposited on the inner wall of the cavity. The hollowed-out fusible area of the terminal body of this utility model has a cavity, and the high-resistivity material is deposited on the cavity surface. This reduces the current-carrying area of the terminal and increases the terminal resistance, allowing heat to accumulate rapidly at the terminal to the material's melting point during a short circuit, quickly melting and blocking the current, thus reducing the risk of thermal runaway of the cell.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY
Automatic water injection sealing equipment for rare earth extraction production line
PendingCN121854603AReduce the situation where the outer ring is high and the inner ring is lowprevent backflowOperating means/releasing devices for valvesEngine sealsProduction lineEnvironmental engineering
The invention relates to the technical field of rare earth extraction sealing equipment, in particular to automatic water injection water sealing equipment of a rare earth extraction production line, which comprises a water injection mechanism, a water sealing mechanism, a flow guide channel and a drainage channel, the water injection mechanism is connected with the lower part of the water tank; the water seal mechanism is connected with the stirring shaft; the flow guide channel is formed in the water injection mechanism; the drainage channel is connected between the water injection mechanism and the water tank; the conical spiral pipe capable of rotating along with the stirring shaft at the same speed rotates in the water seal inner tank, water at the bottom of the outer ring of the water seal inner tank is pumped to the upper portion of the inner ring, the water injection mechanism capable of adjusting the water injection speed along with the water surface height of the inner ring is arranged, and the water surface height of the inner ring is stabilized; the problems that due to high-speed rotation of the stirring shaft, the outer ring is high, the inner ring is low and negative pressure is formed at the position of the inner ring in sealing water in the water seal tank under the action of centrifugal force, and the sealing performance of the water seal becomes poor are solved.
Owner:陈思思