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19 results about "Bernoulli's principle" patented technology
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In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738. Although Bernoulli deduced that pressure decreases when the flow speed increases, it was Leonhard Euler who derived Bernoulli's equation in its usual form in 1752. The principle is only applicable for isentropic flows: when the effects of irreversible processes (like turbulence) and non-adiabatic processes (e.g. heat radiation) are small and can be neglected.
Downburst maximum horizontal wind speed diagnosis method and system
PendingCN121302668ADesign optimisation/simulationComplex mathematical operationsBernoulli's principleClassical mechanics
The invention provides a downburst maximum horizontal wind speed diagnosis method and system. The method comprises the steps that the vertical speed and the jet radius of downburst vertical jet airflow in a high-voltage transmission corridor area are obtained; constructing a downburst impingement jet model based on the Bernoulli principle, and obtaining a static pressure difference parameter; establishing a momentum equation based on a momentum conservation law and the static pressure difference parameter; a mass conservation equation is established based on the jet radius and the mass conservation law, and the horizontal flow thickness is obtained; obtaining a diagnosis model formula of the maximum horizontal wind speed according to the horizontal flow thickness and the momentum equation; and determining an efficiency coefficient according to the turbulence energy loss, correcting the diagnosis model formula based on the efficiency coefficient, and obtaining a corrected diagnosis formula of the maximum horizontal wind speed, thereby realizing accurate estimation of the downburst maximum horizontal wind speed, and providing key dynamic support for disaster prevention and reduction of power grid facilities.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +2
Pharmaceutical container sorting device and production system
PendingCN122343184Aachieve separationReduced sealing requirementsBernoulli's principleStructural engineering
The application discloses a kind of pharmaceutical container sorting device and production system, for sorting pharmaceutical container, including the rotating mechanism of symmetrical distribution, rotating mechanism is synchronous rotation or synchronous stop under working condition, rotating mechanism is evenly distributed with the accommodation structure of circumferential along the periphery, container at sorting station is between the accommodation structure of two rotating mechanisms, rotating mechanism is provided with the gas path connecting structure connected to accommodation structure, pharmaceutical container sorting device further includes the gas supply mechanism of being connected with gas source and being arranged close to rotating mechanism, gas supply mechanism is used to provide compressed gas to accommodation structure through gas path connecting structure selectively.This sorting device realizes container sorting based on Bernoulli principle by compressed air blowing, and the pressure of compressed air can reach four to six atmospheres, so the sealing requirement is lower, even if there is air leakage, there is still enough suction to avoid the problem of broken bottle, and slightly air leakage can greatly reduce the processing and assembly difficulty.
Owner:HUNAN ZHENGZHONG PHARMA MACHINERY
Climate adjusting device based on Bernoulli principle
PendingCN121655044ALighting and heating apparatusWind motor supports/mountsBernoulli's principleThermal energy
The invention relates to the technical field of climate adjusting devices, in particular to a Bernoulli principle climate adjusting device which comprises a base, trusses and an office area are arranged at the top of the base, power generation mechanisms are arranged in the trusses, an iron ball wind damper mechanism is installed between the trusses, and a water spraying mechanism is installed at the top of the base. The power generation mechanism comprises a straight barrel, a stable cross beam is fixedly connected into the inner wall of the straight barrel, and a fan is fixedly connected to the bottom of the stable cross beam. According to the climate adjusting device, by means of the Bernoulli principle, through cooperation of the power generation body mechanism and an iron ball wind resistance device, air flow can be effectively promoted, and peripheral wind power generation equipment is driven to operate; meanwhile, the ground surface temperature is adjusted, heat energy generated by power generation and power utilization is reduced, electric energy is saved, the water spraying mechanism can reduce radiation of sunlight to the ground surface through water spraying, dust can be taken away in the air rising process, and the environment quality is improved.
Owner:赵茂生
Pipeline flow speed control structure facilitating filling
ActiveCN223953862UOperating means/releasing devices for valvesPipe elementsRotational axisBernoulli's principle
The utility model discloses a pipeline flow velocity control structure convenient to fill, which relates to the technical field of pipeline flow velocity control and comprises a pipeline, a horn mouth is mounted on the bottom wall of the pipeline in a penetrating manner, an anti-slip connector is mounted at the bottom end of the horn mouth, a valve component is mounted at one end of the pipeline, and a valve is mounted at the other end of the pipeline. The valve assembly comprises a guide pipe installed at one end of the pipeline through a bolt, a rotating shaft is installed on the inner side of the guide pipe, a control motor is installed at the top of the guide pipe, and the output end of the control motor is connected with the top end of the rotating shaft. The trumpet-shaped nozzles are installed at the bottom of the pipeline, the trumpet-shaped nozzles are large in upper portion and small in lower portion, fluid is guided to move, according to the Bernoulli principle, due to the fact that the trumpet-shaped nozzles are large in upper portion and small in lower portion, the flow speed of the upper portion is low, but the flow speed of the fluid is increased after the fluid enters the small-diameter portion. Therefore, the fluid can be quickly output and filled.
Owner:XINJIANG BIOTECHNOLOGY INST OF ACAD OF ANIMAL SCI (CHINA & AUSTRALIA SHEEP BREEDING CENT OF XINJIANG ACAD OF ANIMAL SCI)
Teaching toy based on Bernoulli principle
The teaching toy based on the Bernoulli principle comprises a handle, a motor, a power source, a wing wheel and an annular sheet, the motor and the power source are respectively arranged in the handle, the motor is powered by the power source, a power switch is installed on the handle, the output end of the motor is connected with the wing wheel, and a plurality of flow guide grooves are formed in the surface of the wing wheel. The inner diameter of the annular sheet is larger than the outer diameter of the middle of the wing wheel, after the motor is started, the wing wheel drives surrounding air to flow, the air pressure intensity of the periphery of the middle of the wing wheel is minimum, and the annular sheet is suspended on the outer side of the middle of the wing wheel and rotates around the middle of the wing wheel. The teaching toy based on the Bernoulli principle integrates interestingness, scientificity, intuition and heuristic into a whole, the Bernoulli principle can be visually displayed, and students can complete demonstration operation by themselves and feel the Bernoulli principle by themselves.
Owner:丁用才
Underwater vehicle docking device and docking method
The invention provides an underwater vehicle docking device and docking method, and belongs to the field of underwater equipment.The underwater vehicle docking device comprises a base, a barrel, a locking piece and a liquid medium conveying assembly; a barrel and a liquid medium conveying assembly are arranged on the base; a liquid spraying flat opening is formed in the inner wall of the cylinder body, the liquid spraying flat opening is axially arranged around the cylinder body, the liquid spraying flat opening sprays annular liquid flow in the axial direction of the cylinder body, and the underwater vehicle is guided to enter the cylinder body through the annular liquid flow; the locking piece is used for locking the underwater vehicle entering the cylinder body; the liquid medium conveying assembly is used for conveying water into the barrel wall of the barrel. By utilizing the Coanda effect and the Bernoulli principle, annular liquid flow is jetted through the barrel structure, and a stable flow field can be formed in the barrel and in the surrounding environment under the action of the annular liquid flow, so that the underwater vehicle is not interfered by a disordered flow field in a water body environment when being close to the barrel for butt joint; and under the guide of the annular liquid flow, the liquid enters the cylinder body without deviation and collision.
Owner:CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
Guiding type pile foundation scouring protection method and device
The invention discloses a flow guide type pile foundation scouring protection method and device, and relates to the field of ocean engineering and hydraulic engineering. Comprising the following steps: S1, analyzing a flow field to obtain hydrological characteristic data of a sea area; s2, according to hydrological characteristic data, carrying out preliminary design on the key set size of the protection device; the structure comprises a main flow guide plate and a lateral flow guide plate, a flow guide protection device designed according to the Bernoulli principle is utilized, destructive descending water flow is converted into constructive sediment conveying water flow through multi-stage flow field regulation and control, and sediment is induced to deposit in a specific area around a pile while scouring is weakened. The flow separation phenomenon caused by pressure gradient sudden change when water flow flows through the surface of the main flow guide plate can be effectively avoided, the sand-containing water flow can be guided to stably enter and flow out of a protection area, and the conveying direction of sand can be better controlled.
Owner:OCEAN UNIV OF CHINA +1
A high refrigeration performance circulating fan
ActiveCN224396712Uorderly flowavoid interferencePump componentsPump installationsBernoulli's principleThermal dilatation
The utility model provides a kind of high refrigeration performance's circulating fan, air duct uses the design of different cross-sectional area of air inlet end, air outlet end and wind passing section, combine the shell of hyperbolic structure and outer wall surface smooth transition, air inlet end large cross-sectional area makes air mass enter, wind passing section small cross-sectional area accelerates airflow, according to Bernoulli's principle, flow rate accelerates and causes pressure to reduce, temperature drops, and gas is similar to adiabatic expansion in flow, work to outside makes internal energy decrease.Air outlet grille area is less than air inlet grille, and air outlet grille strip is located between adjacent air inlet grille strip, avoid airflow interference, ensure air orderly flow, air outlet grille towards the sharp corner structure of air inlet end, not only strengthen air outlet directional property, make airflow concentrated blow out, expand refrigeration coverage, it is also possible to airflow produce cutting and disturbance, promote heat exchange, improve refrigeration performance, the refrigeration performance and circulation performance of the fan are used with air conditioner, and good energy-saving effect can be achieved.
Owner:ZIBO HANCHEN ENVIRONMENTAL PROTECTION TECH CO LTD
Suction unit and suction device
A suction unit 10 suitable for attracting an object P according to Bernoulli's principle comprises a deflection unit 12 having a deflection head 121 and a peg-shaped mounting element 122 adjacent to the deflection head 121, and a suction body 16, wherein the suction body 16 has a suction plate 11 with a front side facing away from the suction body 16, and the suction body 16 has an inlet passage 130 extending through the suction body 16 to the front side of the suction plate 11, the peg-shaped mounting element 122 is inserted into the inlet passage 130 from the front side of the suction plate 11, and the suction body 16 has a plurality of distribution passages 13 branching from the inlet passage 130, and a gaseous medium can be introduced into the deflection passage 110 from the inlet passage 130 through the distribution passages 13 to the front side of the suction plate 11, and the deflection passage 110 is bounded on one side by the front side of the suction plate 11 and on the other side by the deflection head 121 of the deflection unit 12. According to the present invention, along the flow channel segment 1300 of the inlet flow channel 130, each distribution flow channel 13 is connected to the inlet flow channel 130 by a connecting flow channel 133. The connecting flow channel 133 is closed by an inserted peg-shaped mounting element 122 or closing member 1200 along a part of the flow channel segment 1300, starting from the front side of the suction plate 11, and is open to the inlet flow channel 130 above the peg-shaped mounting element 122. Furthermore, a suction device 1 having a plurality of suction units 10 is disclosed.
Owner:アー オー フォルマフロン スイス アクチェンゲゼルシャフト
Vacuum pump pressure reducing device and pressure reducing vacuum pump
ActiveCN112628139BRotary/oscillating piston combinations for elastic fluidsRotary piston pumpsBernoulli's principlePressure difference
The present application relates to a kind of vacuum pump pressure reducing device and pressure reducing vacuum pump, and the vacuum pump pressure reducing device is equipped with air inlet passage end, exhaust passage end and pressure reducing cavity, by setting gas acceleration module in pressure reducing cavity, the gas flow rate in gas acceleration area is greater than the gas flow rate in gas inflow area, according to Bernoulli principle (the greater the gas flow rate, the smaller the pressure), by velocity change, the air inlet passage end and exhaust passage end that originally have similar pressure difference are generated, the pressure difference generated in two ends drives the gas flow rate of air inlet passage end to be larger.Thus, the exhaust resistance of air inlet passage end is relieved, the rotation rate of vacuum pump rotor is reduced, thereby preventing the excessive wear of vacuum pump, and prolonging the service life of vacuum pump.
Owner:CHANGXIN MEMORY TECH INC
Wind speed identification line pipe unblocking and blocking device
The invention relates to a wind speed identification line pipe unblocking device. The device comprises an airflow generation unit; the first end of the main ventilation pipeline is communicated with the output port of the airflow generation unit; the line pipe connector is arranged at the second end of the main ventilation pipeline and is used for being in sealed connection with a to-be-detected line pipe opening; the lower end of the detection branch pipe is communicated with the main ventilation pipeline; the light floating ball is accommodated in the detection branch pipe and can freely move up and down in the detection branch pipe; and the wind speed detection unit comprises a wind speed sensor arranged in the detection branch pipe and a display electrically connected with the wind speed sensor. By using the Bernoulli principle and the airflow path selection characteristic, the unobstructed, partially blocked and completely blocked states of the line pipe are directly converted into the motion state of the floating ball in the detection branch pipe and the difference of wind speed readings, and the accuracy and reliability of the detection result are remarkably improved. The device is simple in structure and convenient to operate, and the detection efficiency is remarkably improved compared with a traditional method.
Owner:CHINA MCC20 GRP CORP LTD +1
V-cone low-temperature oxidation denitration reactor
The utility model discloses a V-cone low-temperature oxidation denitration reactor and relates to the technical field of flue gas treatment. Comprising a shell, a support, an inner wall fixedly arranged on the shell, a V-shaped cone, a top fixedly arranged on the outer wall of the support and a plurality of groups of injection mechanisms, each group of injection mechanisms are arranged on the shell at equal intervals in the circumferential direction, and the cross section of the shell is in a circular ring shape. According to the V-cone low-temperature oxidation denitration reactor, by utilizing the Bernoulli principle and the special V-cone structure design, a denitration agent and flue gas are fully mixed in the reactor to form a fierce turbulent flow area, so that the mixing effect is greatly improved, the length of a reaction area can be shortened, and waste of the denitration agent is avoided; the reactor composed of the shell, the V-shaped cone on the support and the double-fluid atomization spray gun is simple in structure, free of movable parts, capable of avoiding complex daily maintenance and equipment management, easy to build and install, capable of being placed and installed in any mode and low in manufacturing cost.
Owner:SHANDONG SHANGWEI ENVIRONMENTAL PROTECTION MACHINERY CO LTD
Pressurized hydrofoil counterweight device based on Bernoulli principle and application of pressurized hydrofoil counterweight device
PendingCN121461210ACable installations on groundUnderwater equipmentBernoulli's principleMarine engineering
The invention discloses a pressurized hydrofoil counterweight device based on the Bernoulli principle and application of the pressurized hydrofoil counterweight device in underwater engineering. By optimizing the structure and the connection mode of the counterweight device, the performance and the stability of the counterweight device can be improved, the cable can reach the set underwater depth more easily, meanwhile, the deviation of the cable in the horizontal direction is reduced, the precision and the stability of the device are improved, and therefore the requirements of ocean engineering are better met.
Owner:HAINAN ZHIHAO TECH CO LTD
A new negative pressure thermal oxygen-removing water preparation device
The utility model relates to oxygen -removing water preparation technical field, especially disclose a novel negative pressure heat oxygen -removing water preparation device, including oxygen -removing device, circulating water injection system and circulating water pump, circulating water injection system utilizes Bernoulli's principle, and when high -speed fluid enters the inside of injection system through the nozzle and expansion chamber and forms the negative pressure area, steam vent and expansion negative pressure area are linked together, thereby steam is attracted to the injection system. Use circulating water as power source, and circulating water forms low pressure zone when passing through the nozzle in the inside of injection system, and the vent steam of oxygen -removing device is sucked to circulating water through pipeline connection and is fully mixed with circulating water and is condensed into water by cooling, thereby realizing the supplement to circulating water system, and when the suction effect of circulating water injection system reduces the absolute pressure of oxygen -removing device from 120kPa to 90kpa, the boiling point of water also reduces from 104 DEG C to 96 DEG C, and a large amount of water consumption and steam energy consumption are saved.
Owner:HEBEI XINHAI CHEM GRP CO LTD
Anti-spalling porcelain insulator
The utility model relates to the technical field of electric porcelain insulators, and discloses an anti-spalling porcelain insulator, which comprises an insulator body, and a cooling assembly is arranged in the insulator body. According to the anti-spalling porcelain insulator, when air flows to the vicinity of the blade, the blade rotates, so that the air enters the air inlet pipe through the air inlet according to the Bernoulli principle, takes away heat in the insulator body, and then discharges the heat out of the insulator body through the air outlet, thereby greatly reducing the temperature change in the insulator body, reducing the thermal expansion stress, and improving the anti-spalling performance of the insulator. The airflow passes through the narrowed convex ring, the flow speed of the airflow is increased, the air obtains more kinetic energy in the air inlet pipe, the heat transfer is more efficient due to the increase of the flow speed of the airflow, the heat in the insulator body can be more effectively taken away by the air at a high flow speed, and the cooling efficiency is improved; and expansion and fracture of the porcelain insulator caused by heat accumulation are avoided.
Owner:PINGXIANG QINGHUA ELECTRIC PORCELAIN CO LTD
Suction unit and suction device
Owner:A O FORMAFLON SWISS AG
Method for regulating and controlling growth uniformity of tin oxide film
The invention discloses a method for adjusting and controlling the growth uniformity of a tin oxide film, which comprises the following steps of: placing a polished silicon wafer in a carrier boat for bearing the silicon wafer, and arranging a flow uniformizing device below the carrier boat; and after the cavity reaches a vacuum state and the temperature reaches 80-120 DEG C, sequentially introducing a tin source, introducing large-flow argon for primary purging, introducing small-flow argon for secondary purging, introducing an oxygen source, introducing large-flow argon for tertiary purging and introducing small-flow argon for quaternary purging, and repeating for 50-200 times. According to the scheme, through the Bernoulli principle, the pressure intensity of places with small flow velocity in fluid is large, the pressure intensity of places with large flow velocity is small, the movable baffle with the opening degree controlled through the pressure intensity is manufactured at the air exhaust position, airflow is redistributed, and the air uniformity is improved. And through a large and small flow superposition purging mode, it is guaranteed that gas pressure difference is not generated in the source introduction step to affect airflow flowing, the purging capacity is enhanced, and the film thickness uniformity is improved.
Owner:WUXI SONGYU TECH CO LTD
Centrifugal dust collector
InactiveCN121869616Aincrease flow rateavoid cloggingVortex flow apparatusBernoulli's principleDust emission
The invention relates to the technical field of cyclone dust collectors, in particular to a centrifugal dust collector which comprises an air inlet pipe, an exhaust pipe, a cylinder, a cone and an ash hopper, the air inlet pipe is mounted on the side face of the cylinder and tangent to the cylinder, the exhaust pipe is fixedly mounted on the cylinder and coaxial with the cylinder, the cone is mounted below the cylinder, and the ash hopper is mounted below the cylinder. The ash hopper is installed below the cone, an air spraying pipe is installed at an air outlet of the draught fan, and the pipe diameter of the air spraying pipe is smaller than that of the exhaust pipe. A high-speed air flow is jetted into the exhaust pipe at the position close to the pipe opening of the exhaust pipe according to the Bernoulli principle, bypass air flow is forced to flow into the exhaust pipe under the influence of the flow speed and pressure intensity difference, and therefore the flow speed of inner vortex ascending air flow is increased, and a better effect in a traditional using method can be achieved through a lower-power fan; the problem of vortex dust raising in the ash discharge port is solved, meanwhile, energy consumption of an external fan is reduced, and the purposes of saving energy, protecting the environment and reducing the production cost are achieved.
Owner:俞点
Real-time temperature control type immersion heat dissipation system and method based on calorific value of computing power equipment
PendingCN122086210AGuarantee running stabilityShorten temperature control response timeDigital data processing detailsHardware monitoringTemperature controlBernoulli's principle
The invention discloses a real-time temperature control type immersion heat dissipation system and method based on the calorific value of computing power equipment, and relates to the field of immersion type liquid cooling heat dissipation. The system comprises a temperature monitoring unit integrated in a machine case unit, the machine case unit with a thermal load partition and an outer loop heat dissipation unit, the interior of the machine case unit is divided into three independent partitions, namely a high-heat partition, a medium-heat partition and a low-heat partition, the three independent partitions are matched with IT equipment with different heating intensities respectively, and each partition is provided with an exclusive temperature sensor, a flow field control device and a drainage pump; the flow field control device comprises an axial vortex generation pump, a Bernoulli principle flow deflector and a wave-shaped flow guide block, the flow field is optimized, and the use amount of cooling liquid is reduced; the temperature monitoring unit synchronously acquires the partition temperature and the chip core temperature, and intelligently switches between a natural circulation mode and a forced external circulation mode; accurate temperature control and quick response are achieved, the using amount of cooling liquid is reduced, and the heat dissipation efficiency and the energy-saving requirement are both considered.
Owner:GUANGDONG ZHENGHENG ZHILENG TECHNOLOGY CO LTD +1