69 results about "Jet velocity" patented technology

The invention discloses a tunnel fire air curtain smoke prevention control method and system, and relates to the technical field of intelligent fire fighting, and the method comprises the steps: building a digital twinborn prediction model, and generating a fire source position coordinate and a smoke diffusion trend prediction map through multi-physics field coupling simulation; analyzing the stability requirement of the air curtain jet flow through a Brapare-Prandtt boundary layer analysis algorithm, and generating a jet flow enhancement requirement parameter table in combination with temperature gradient correction; optimizing an acoustic vortex main frequency band by adopting a Slodhaar number, and generating an acoustic vortex control parameter set in combination with a matched sound pressure level and a configured resonator phase difference; and converting the acoustic vortex control parameter set into an execution instruction, monitoring the jet velocity, the vortex street stability and the smoke retardation effect in real time, and dynamically correcting the parameters of the digital twinborn prediction model. According to the method, physical quantity outline matching of the blocking intensity and the sound pressure level is achieved through the sound intensity-momentum equivalent method, and the optimal phase configuration is determined in combination with POD modal analysis.

In order to improve the energy conversion efficiency and the output performance, the piezoelectric synthesis jet device based on the combined cavity comprises a base body, a cavity, a nozzle and a piezoelectric vibrator, and a pump cavity is formed in a pump body; the piezoelectric vibrator is arranged in the pump cavity and divides the pump cavity into two cavities; a through hole is formed in the position, with the maximum amplitude, of the piezoelectric vibrator; the pump body is provided with a nozzle at the coaxial position of the through hole; the height, close to the nozzle, of the two cavities is larger than that of the other cavity; the hole diameter of the nozzle is larger than that of the through hole. The device has the characteristics and advantages of low power consumption, high energy density, high jet velocity of the nozzle, small size and easiness in integration.

The present invention discloses a water storage and heat storage water distributor with a low jet flow velocity, specifically relating to the technical field of water storage and heat storage, and comprising a heat preservation box, a water guide pipe, a reciprocating electric cylinder and a transverse synchronous interval displacement water distribution mechanism; wherein the transverse synchronous interval displacement water distribution mechanism comprises a contraction rod, a socket ring, a plurality of hinge blocks, a connecting shaft, a socket rod, a pulling shaft and a concave block; and also comprises a synchronous inner perimeter displacement water distribution mechanism and a rotary displacement water distribution component. The present invention has the advantage of enabling the stored cold water body to efficiently achieve large-area displacement water distribution through the transverse synchronous interval displacement water distribution mechanism, thereby solving the problems that it is difficult to uniformly displace and cover the stored cold water body in the transverse gap between multiple nozzles, it is difficult to perform transverse displacement covering water distribution at the position of the inner perimeter nozzles, and it is difficult to achieve transverse angle displacement and vertical movement displacement water distribution, making it difficult for the stored cold water body to efficiently achieve large-area displacement water distribution.

The invention relates to the technical field of radiators, and particularly provides a jet impact micro-channel heat dissipation device for server liquid cooling, which comprises a shell, the shell comprises an upper cover plate and a lower cover plate, and the lower cover plate is attached to a chip for heat dissipation; inlets are formed in the front and back of the upper cover plate, outlets are formed in the left and right of the lower cover plate, cooling fluid enters from the inlets, flows into the drainage cavity after entering the diversion layer, enters the annular cavity from the drainage cavity, and enters the lower cover plate through a turbine diversion module of the annular cavity; the high-heat-conduction ceramic layer is arranged on the cover plate on the lower portion of the liquid inlet, the pre-rotation effect brought by the turbine flow guide module enables the jet flow speed of the liquid outlet to be distributed more evenly, the impact heat exchange efficiency of jet flow on the high-heat-conduction ceramic layer is improved on the basis that the flow resistance is remarkably reduced, and the heat exchange efficiency is improved. Moreover, the high-thermal-conductivity ceramic layer enhances the wettability of the surface and accelerates the heat dissipation of the hot spot area of the chip, and then the cooling fluid flows out from the outlet. Compared with the prior art, the heat dissipation efficiency and the energy efficiency ratio are extremely high, and the heat dissipation requirement of a high-heat-flux hot spot of a high-power server is met.

The utility model discloses a nozzle water jet penetrating power testing device which comprises a rack. A spraying mechanism with a nozzle is connected to one end of the upper part of the rack; a nozzle is installed at one end of the rack, a penetration recording mechanism is installed at the other end of the rack, a target material mechanism is installed between the nozzle and the penetration recording mechanism, and when water flow ejected by the nozzle breaks down a target material in the target material mechanism, the water flow pushes a preset turning plate on the penetration recording mechanism to rotate so as to obtain time parameters of target material breakdown; the spraying mechanism is connected with the rack in a sliding mode, and a ruler is arranged on the rack. A jet velocity sensor is arranged at the position, close to the target material, of the target material mechanism; a high-pressure water connector is arranged in the injection mechanism, and a pressure gauge is arranged between the high-pressure water connector and the nozzle. According to the utility model, a specific nozzle can be tested, and the breakdown duration under the conditions of different target materials, pressures, flow velocities and target distances can be verified, so that reference data can be provided for cleaning operation.

The present invention discloses an adaptive filling system capable of multi-stage pressure regulation and a pressure regulation method thereof. The system includes a control module, a pressure relief module and an energy-consuming pressure reduction module connected sequentially to a filling pipeline between boreholes. The pressure relief module includes a pressure relief unit and a first bypass line connected in parallel to the filling pipeline. The energy-consuming pressure reduction module implements different levels of pressure reduction measures by connecting multiple stages of energy-consuming pressure reduction units and a second bypass line in parallel in the filling pipeline. Valves are provided on the pressure relief unit, the first bypass line, each stage of the energy-consuming pressure reduction unit, and the second bypass line. The control module obtains the location information of the mine in real time, and obtains the height difference between the filling preparation station and the mine based on the location information to obtain the residual pressure head P. The valves of each bypass line, the pressure relief unit, and the energy-consuming pressure reduction unit are controlled based on the residual pressure head P. The present invention can perform multi-stage automatic pressure regulation based on the residual pressure head of the mine, reducing failure phenomena such as pipe burst, excessive jet velocity at the outlet, and pipe blockage.

The present invention provides an air curtain fire prevention test platform. The platform includes an air guide trough, a combustion chamber, a measurement and control unit, and a simulation generation unit. The air guide trough provides air supply conditions for the test platform; the combustion chamber provides the test platform with facilities for simulating the spread of combustion fire. The outer wall of the combustion chamber where the air inlet is located is provided with an external facade, simulating a high-rise residential building; the measurement and control unit is used to collect the temperature of the gas entering the combustion chamber and the temperature of the combustion flame at different positions. The simulation generation unit is connected to the combustion chamber to provide fuel gas and an ignition system for the burner in the combustion chamber. By setting air curtains with different angles and jet velocities, air curtain fire prevention tests can be conducted more intuitively. The width and thickness of the air curtain are variable, which can meet the needs of testing openings of different sizes. It is highly functional and easy to operate. It can also meet the needs of different fire source locations and single or multiple fire source combustion simulations, which is more in line with real cabin fire conditions and safer.

The invention belongs to the technical field of liquid metal 3D printing, and particularly relates to a melt impact jet flow regulation and control system for an open launder. A pressure heat preservation device inputs gas into the pressure heat preservation device through a gas conveying pipeline and controls the gas flow to control the pressure in the pressure heat preservation device; the molten metal in the pressure heat preservation device is sprayed to a cooling platform located under the spraying device through the spraying device to be cooled; the laser Doppler radar velocimeter monitors the metal liquid jet velocity in real time and uploads the metal liquid jet velocity to the upper computer, the gas flow needing to be adjusted is calculated through a PID algorithm, a corresponding adjusting control instruction is generated and issued to the MFC and the electromagnetic valve or the small-aperture exhaust valve and the large-aperture exhaust valve, and therefore control over the jet velocity is achieved. Through jet velocity feedback monitored in real time, the flow of gas input into the pressure heat preservation device is adjusted in real time through a PID algorithm to control the pressure in the pressure heat preservation device in real time, and therefore accurate control over the jet velocity is achieved.

This invention provides a nozzle, method, and open-face wind tunnel for improving flow field quality. The nozzle for improving flow field quality has a coaxial double-layer jet, comprising a main jet and an outer jet coaxial with and surrounding the main jet, wherein the outer jet has a lower velocity than the main jet. This invention directly alters the starting position of the shear layer of the open-face wind tunnel jet, i.e., the nozzle structure, minimizing the generation of large-scale vortex structures and effectively maintaining good flow field quality in the wind tunnel test section (downstream of the nozzle).

The invention relates to the technical field of spinning machine air injection speed balancing, in particular to a spinning machine air injection speed balancing method and system based on an oval eccentric air chamber, and the method comprises the following steps: changing a second air chamber in double air chambers into an oval air chamber, and shifting the oval air chamber towards a supply pipe by setting a centrifugal distance; calculating the gas mass flow at the inlet of the supply pipe, and further solving the pressure distribution of the first gas chamber; mapping the ellipse to a circular domain, calculating a scale coefficient, and obtaining the pressure distribution of the elliptical air chamber in combination with the pressure distribution of the first air chamber; establishing a blowhole jet velocity calculation model, and calculating the jet velocity of the spinning machine by combining the pressure distribution of the elliptical air chamber; and the optimal ellipse semi-minor axis and centrifugal distance are solved with the aim of minimizing the speed variance of the air injection holes, and the form and position of the ellipse air chamber are adjusted. Through the design of ellipse and eccentricity, the pressure difference of the positions of the air injection holes is reduced, so that the flow is balanced, the speed difference of the air injection holes is reduced, and the production requirement of high-quality spinning is met.

The application is suitable for the technical field of fluid mechanics experiment, and provides a circulating water tunnel blade impact jet velocity multi-stage regulation test device, which comprises an experimental water tunnel, a velocity multi-stage regulation mechanism, a water pump, a laser generator, a pulse laser controller, a blade angle adjusting mechanism, a high-definition CCD camera, a water tank, an image acquisition computer and a signal synchronous collector; the water tank, the water pump and the experimental water tunnel are connected through pipelines to form a circulating loop; the velocity multi-stage regulation mechanism is installed on the experimental water tunnel; the blade angle adjusting mechanism is installed on the back plate of the experimental water tunnel; the laser generator is arranged above the experimental water tunnel; the optical axis of the high-definition CCD camera is perpendicular to the pulse laser sheet light provided by the laser generator; and the image acquisition computer is signal-connected with the high-definition CCD camera through the signal synchronous collector. The device can dynamically simulate the complex actual working conditions of a hydraulic torque converter with high fidelity, and realizes the visual measurement of the blade near-wall flow field.

The invention discloses a water bucket water cutting edge characterization method based on jet flow characteristic parameters, and belongs to the technical field of water bucket type water turbines. The method comprises the steps of calculating jet velocity through a water turbine design head, and determining jet diameter by combining design flow; then, a three-dimensional coordinate system with the rotating center of the water bucket as the original point is established, the jet flow diameter is equally divided into 2n parts, and a plurality of planes are constructed; calculating the diameter of a jet flow section in each plane, and determining an initial intersection point of a water cutting edge; and connecting the intersection points in sequence through polar coordinate conversion to form a water cutting edge space curve. Compared with the prior art, the method has the advantages that the geometric parameters of the water cutting edge are directly associated with the jet characteristic parameters innovatively, the problem that a traditional mathematical fitting method breaks away from actual working conditions is solved, and the requirements of high efficiency and stable operation are comprehensively considered while the water bucket is designed.

The present invention belongs to the field of underwater navigation equipment, and specifically relates to an underwater jet generator, underwater navigation equipment, and control method thereof. The underwater jet generator includes a cavity and a vibrating diaphragm. The cavity includes a gas accommodating chamber and a liquid accommodating chamber interconnected from top to bottom. The vibrating diaphragm is disposed within the gas accommodating chamber, and vibration of the vibrating diaphragm compresses or expands the volume of the gas accommodating chamber. The cavity is provided with a jet outlet within the liquid accommodating chamber. The underwater jet generator provided by the present invention improves the jet intensity and jet velocity of the underwater jet generator while reducing energy consumption.

The invention discloses a plasma spraying intelligent closed-loop control method based on machine learning. The plasma spraying intelligent closed-loop control method comprises the steps that firstly, the jet velocity and the jet temperature under different technological parameters are collected; 2, constructing a machine learning model; 3, the jet velocity and the jet temperature are input into the machine learning model, the coating performance of the predicted spraying sample is obtained, and technological parameters are fed back and adjusted: if the predicted coating performance deviates from the application boundary by 0-9%, the technological parameters are not changed; if it is predicted that the coating performance deviates from the application boundary by 10-20%, 1-2 technological parameters which have the highest weight and have the forward influence on the coating performance are adjusted; if the predicted coating performance deviates from the application boundary by 21-39%, coordinating and adjusting 3-4 process parameters which have the highest weight and have positive influence on the coating performance; and if the predicted coating performance exceeds 39% of the application boundary, the PLC cuts off the power supply, stops powder feeding, and introduces the protective gas. The method has the characteristic of improving prediction accuracy and adaptability.

The invention discloses an additive manufacturing process optimization method and system based on jet electrochemistry, and belongs to the technical field of additive manufacturing. The method comprises the steps that the pH value, the ion concentration, the temperature and the current density of a deposition interface micro-area are obtained in real time through a micro-area sensing array integrated in a jet flow nozzle; jet velocity, pressure, electrolyte components and environment interference information are synchronously collected; constructing a uniform process state representation vector for the multi-source heterogeneous data; inputting the vector into a pre-trained multi-physical field coupling process model to realize millisecond-level prediction of the deposition rate, the morphology and the side reaction probability; a reinforcement learning controller is used for generating a self-adaptive adjustment instruction for the voltage, the jet velocity and the nozzle track; the problems that in the prior art, the deposition process is unstable, and real-time micro-area sensing and regulation lag is lacked are solved, in-situ sensing and dynamic regulation of the micron space scale and the millisecond time scale are achieved, and the compactness, the component uniformity and the forming precision of a deposition layer are remarkably improved.

The present invention relates to a simulation method and system for blowing air on the blade surface. The method includes obtaining the configuration parameters of the rotor to be simulated; constructing a grid system according to the configuration parameters, the grid system including blade grids and background grids; obtaining the jet velocity and the grid motion velocity; the grid motion velocity includes: the motion velocity of the blade grids and the motion velocity of the background grids; calculating the grid velocity on the jet orifice surface according to the jet velocity and the grid motion velocity; and performing a blowing air simulation by blowing air simultaneously at the jet orifices on the upper surface and the lower surface of the grid system according to the grid velocity on the jet orifice surface. The present invention can reduce the blade-vortex interaction noise.

The low air-fuel ratio kiln burner of the present application, the stable flame axial air jet generated by the stable flame axial air jet conveying port interacts with the radial gas jet generated by the radial gas jet conveying port, the jet velocity is slowed down and fully mixed with the gas for combustion, forming a flame stable structure with wider adaptability; the axial gas jet generated by the axial gas jet conveying port starts to contact the flame formed by the radial gas jet at a suitable position, and fully mixes the unburned gas with the already burned flame part before the outlet of the combustion chamber, realizing the full combustion of the residual oxygen in the flue gas in the furnace by the entraining capacity of the high-speed flame, thereby greatly widening the working range of the burner, allowing the burner to work normally within the air excess coefficient range of 0.4-1.5, maintaining a certain flame shape and rigidity, maintaining stable heat exchange capacity, fully utilizing the residual oxygen in the furnace, reducing energy consumption and harmful gas emission.

The invention provides a conical shaped charge liner energy-gathered warhead material density, thickness and angle optimization design method based on a BP neural network and a conical shaped charge liner energy-gathered warhead. The method comprises the steps that core components and characteristics of a conical shaped charge liner are determined, the shaped charge liner is located at the front end of a main charge, and the shaped charge liner and the main charge are coaxially arranged; the cone top of the shaped charge faces the direction away from the main charge, the conical surface makes contact with the main charge to form an energy gathering structure symmetrical to the central axis, and the detonating device is arranged in the center of the end, away from the shaped charge, of the main charge to ensure that detonation waves are symmetrically spread from the end to the shaped charge; acquiring data of jet velocity, penetration depth, jet head shape and jet tail dispersion degree under different shaped charge liner parameter combinations through a numerical simulation tool; based on the obtained data, a BP neural network model is used for optimization, the optimal parameter combination of the shaped charge liner is screened out, the jet velocity, stability and penetration depth are precisely regulated and controlled, and the requirements of different damage scenes are met.

This invention provides a method for optimizing the uniform gas distribution of an airflow distributor in a biogas-liquid reactor, belonging to the technical field of biogas-liquid reactors. It solves the problem of the lack of a systematic optimization method in existing technologies. The method includes: estimating the critical velocity for seepage at the jet orifices; calculating and initially selecting the required number of jet orifices, the total length and number of all jet pipes, and initially selecting the airflow distributor structure; determining the frictional resistance coefficient f, momentum recovery coefficient k, and jet orifice flow coefficient c; analyzing the pressure drop distribution characteristics along the pipe length and the total pressure loss within the pipe; based on the analysis results, determining the airflow distributor parameter combination that meets the conditions; and outputting the final airflow distributor design parameters when the jet velocity and non-uniformity of each jet orifice simultaneously meet the preset seepage prevention conditions and non-uniformity requirements. This invention achieves optimized design of the airflow distributor structure.

The invention discloses an injection mechanism, an ignition device, an engine system and a control method of the engine system, and belongs to the technical field of engines. According to the injection mechanism, the ignition device, the engine system and the control method of the injection mechanism, when the engine is in different working conditions, the multiple blades can be controlled to be linked with the rotating disc, the states of the multiple blades are switched, the states of the multiple blades are different, and then the jet flow distribution range and the jet flow speed of the injection mechanism are flexibly controlled; the injection mechanism has good performance under different working conditions of the engine, the combustion requirements under low-load and high-load working conditions can be met, the adjustment requirements under different rotating speed conditions can be met, the stability and controllability of the combustion process are greatly improved, the combustion efficiency can be remarkably improved, and the service life of the engine is prolonged. Incomplete combustion is reduced, emission of harmful gas is effectively reduced, and the environment-friendly requirement is met.

The present invention discloses an adaptive liquid pipeline noise elimination system and method based on jet rectification and noise elimination. The system includes a muffler housing, at least one jet disk disposed inside the muffler housing, a flow meter disposed inside the pipeline behind the pump, a muffler controller communicatively connected to the pump and the flow meter respectively, and a pressurized liquid return assembly disposed on the outlet side of the muffler housing and communicating with the jet disk for pressurizing and returning the liquid at the outlet of the muffler and spraying it out from the jet disk. The jet disk is provided with jet nozzles. By repeatedly sucking a part of the liquid at the outlet of the muffler through the pressurized liquid return assembly, pressurizing it and spraying it out through the jet nozzles, large vortices generated upstream of the pump are dispersed and broken into small vortices, and finally the small vortices are rectified into laminar flow through multiple jet disks, so as to reduce the liquid pressure pulsation. By collecting the rotational speed signal and flow signal of the pump through the muffler controller and controlling the jet speed and flow rate of the jet disk, the adaptive adjustment of the noise elimination effect of the liquid pipeline is realized, and the noise elimination effect is ensured.

The present application relates to the field of jet propulsion technology, and provides a micro-mixing nozzle structure with staggered outlet velocity and a combustion chamber. The micro-mixing nozzle structure comprises a mounting seat and a first nozzle unit; the first nozzle unit comprises a plurality of side-by-side arranged premixing micro-pipes, among which a part is reference position premixing micro-pipes and the other part is staggered position premixing micro-pipes; along the axial direction of the premixing micro-pipe, the premixing micro-pipe has an inlet end, an outlet end and a gas passage; the inlet end is provided with an oxidant inlet, and the side wall of the premixing micro-pipe is provided with a fuel inlet communicating with the gas passage; the effective areas of the oxidant inlets corresponding to the staggered position premixing micro-pipes and the reference position premixing micro-pipes are different, so that the jet velocities of the outlet ends of the staggered position premixing micro-pipes and the reference position premixing micro-pipes are different. The present application arranges the different premixing micro-pipes in a staggered manner according to the jet velocity, realizes the staggered arrangement of the flame delay time of the different premixing micro-pipes, effectively suppresses the combustion oscillation, and can ensure the stability of the flame combustion.

The invention discloses a gas-liquid integrated jet device, and belongs to the technical field of fluid jet. The device comprises a jet flow nozzle and a compressed gas nozzle, wherein the jet flow nozzle and the compressed gas nozzle are of an interlayer structure; the jet nozzle is used for jetting high-pressure liquid jet, the compressed gas nozzle is used for jetting high-pressure gas jet, and the high-pressure gas jet speed is larger than or equal to the high-pressure liquid jet speed. By adopting a high-speed gas clamping jet flow fluid technology, the problem of speed attenuation or liquid gasification of liquid jet flow influenced by air resistance can be greatly reduced.

The invention relates to the field of electric appliances, and provides an air conditioner control method and device and an air conditioner. The method comprises the steps of obtaining position information of a user, and determining a target swing angle of a swing blade assembly according to the position information of the user; according to the position information of the user and the needed set blowing air speed, the target air supply speed of the air conditioner and the target air guide angle of an air guide plate are calculated based on the jet flow speed model and the jet flow track center line model of air supply of the air conditioner; and adjusting the air conditioner according to the target air supply speed, the target swing angle and the target air guide angle. According to the method, the jet velocity model and the jet trajectory center line model are introduced, the user position information is used for calculating the target air supply speed and the target air guide angle at the same time, and cooperative adjustment of the air speed and the air direction is achieved.

The present invention relates to a steam soot blowing device for a rotary air preheater, which includes a steam soot blower, a barrel, and a nozzle assembly. The nozzle assembly includes a first nozzle assembly and a second nozzle assembly. The first nozzle assembly includes a throttle pipe that is connected to the barrel and has a throttle orifice disposed inside, and a spray head that is connected to the throttle pipe. The aperture of the throttle orifice is smaller than the diameter of the throttle pipe, and the inlet aperture of the spray head is smaller than its outlet aperture. The second nozzle assembly includes a distribution pipe that is connected to the barrel and nozzles that are connected to the distribution pipe. The jet velocity of the spray head is less than the jet velocity of the nozzles. The present invention improves the purging effect of ammonium bisulfate deposited ash. The high-temperature and low-velocity steam jet upstream heats and gasifies ammonium bisulfate in the deposited ash on the surface of the heat exchange element, making the dense deposited ash become a fluffy structure, reducing the hardness and adhesion strength of the deposited ash, improving the shearing and scouring effect of the high-velocity and low-temperature steam jet downstream on the deposited ash, and enhancing the removal effect of ammonium bisulfate deposited ash.

The present invention discloses a burnout air supply characteristic adjustable burner, which includes an outer burnout air duct, an inner burnout air duct, a variable cross-section baffle, a gear and a long handle rack; the inner burnout air duct includes a shaft hole and an inner burnout air duct housing; the variable cross-section baffle includes a rotating shaft and a flat plate. The central axes of the outer burnout air duct and the inner burnout air duct are arranged collinearly, and the arrangement order from outside to inside is the outer burnout air duct and the inner burnout air duct in sequence. Both ends of each variable cross-section baffle are rotationally matched with each shaft hole on the inner burnout air duct, each gear is in interference fit with each variable cross-section baffle, and each rack is arranged on the side of the inner burnout air duct and meshes with each gear for transmission. During the variable load peak shaving process of a thermal power unit, by adjusting the arrangement mode of the variable cross-section baffle, the flow cross-sectional area, the aspect ratio of the cross-section and the rectangular cross-section distribution characteristics of the inner burnout air are changed, so that the burnout air jet can ensure a higher jet velocity and rigidity under different load conditions, and effectively improve the combustion characteristics of the furnace flame under low load.

The application discloses a near-wall fixed-hybrid synthetic jet depth reinforcement learning control method and system: a plurality of jet actuators are arranged on the surface of a fixed wing, a plurality of probes are arranged in the flow field around the fixed wing and the wake area, the probes acquire flow field transient velocity and pressure data solved by a CFD flow field solver in real time, a near-end policy optimization multi-action deep reinforcement learning algorithm is adopted by a DRL control end to dynamically output continuous and discrete mixed actions according to flow field state information solved by the CFD flow field solving end, the discrete actions are used to activate a group of adjacent jet actuators, and the continuous actions are used to determine the jet velocity and flow rate of the activated jet actuators, so that the action area of the synthetic jet can be automatically aligned with the flow separation point under different attack angles, thereby reducing the average resistance and suppressing the lift fluctuation. The application can effectively reduce the resistance of the ground effect fixed wing and suppress the lift oscillation under different working conditions.

The invention discloses equipment and method for cleaning the inner wall of a stainless steel container filled with powder high-temperature alloy. The equipment comprises a workpiece positioning and clamping mechanism used for positioning and clamping the stainless steel container. The lifting and overturning mechanism is used for lifting and overturning the stainless steel container by 180 degrees; the cleaning mechanism is used for cleaning the inner wall of the stainless steel container with high-pressure water; the blow-drying mechanism is used for carrying out hot air blow-drying on the inner wall of the cleaned stainless steel container; the high-pressure pump station is used for providing high-pressure water; the pure water module is used for providing pure water; the stainless steel container inner wall cleaning device has the beneficial effects that all-directional cleaning of the inner wall of a stainless steel container is achieved by limiting and stipulating the pressure, the jet velocity and the flow of high-pressure water and matching with the nozzle by means of the automatic clamping and lifting turnover mechanism and the motion trail of the nozzle; meanwhile, the CPU control cabinet is arranged, automatic control over the cleaning process is achieved, the equipment can conduct hot air drying on cleaned workpieces, most impurities in air can be filtered out, and it is guaranteed that the purity of air blown to the inner wall of a container is high.

The application discloses a micro-mixing nozzle with adjustable jet velocity, a combustor and a gas turbine, and relates to the technical field of micro-mixing nozzles.The micro-mixing nozzle comprises a nozzle body comprising a plurality of micro-mixing pipes, and an adjusting assembly comprising a plurality of adjusting units, each adjusting unit comprising an adjusting body, a connecting structure and a sleeve, each sleeve being sleeved on the outside of one micro-mixing pipe, the adjusting body being arranged at the outlet of the micro-mixing pipe, the adjusting body being connected to the inside of the sleeve through the connecting structure, and a sliding groove being arranged on the micro-mixing pipe to avoid the connecting structure; wherein the cross-sectional size of each adjusting body is arranged to be different along the length direction of the micro-mixing pipe, and the position of the adjusting body can be adjusted by moving the sleeve along the micro-mixing pipe, so as to change the outlet cross-sectional area of the micro-mixing pipe through the adjusting body. The technical scheme provided by the application can adjust the jet velocity of the micro-mixing nozzle, so as to adapt to the combustion requirements of different fuels and ensure the stability and safety of combustion.

The utility model discloses a flotation reagent jet flow emulsification device, which belongs to the technical field of jet flow emulsification and comprises a jet flow driving pipe connected with a driving motor. By means of the premixing hopper, the top cover, the micro gear motor and the stirring structure, a collecting agent and a foaming agent can be premixed, the follow-up jet flow emulsification effect is guaranteed, the needed emulsification degree can be achieved at the low jet flow speed, the emulsification difficulty is reduced, spiral stirring blades and transverse stirring blades are arranged in the stirring structure, the premixing effect can be improved, and the stirring efficiency is improved. A scraping assembly is arranged on a connecting rod, a vertical scraping plate and an inclined scraping plate are tightly attached to the inner wall of the premixing hopper under the action of centrifugal force, the scraping effect can be effectively achieved, residual materials on the inner wall of the premixing hopper are prevented, a spring is used in cooperation with the centrifugal force, it is guaranteed that the vertical scraping plate and the inclined scraping plate can be attached to the inner wall of the premixing hopper, and the mixing uniformity is improved. And the scraping effect is guaranteed, and the stirring structure can be recycled to give way when not rotating.