47 results about "Liquid bubble" patented technology

The utility model discloses a flowing liquid bubble eliminating device which comprises a bubble eliminating box, a water inlet pipe, a water outlet pipe, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, a plurality of first liquid flow cavities and second liquid flow cavities which are communicated in sequence to form liquid flow channels for liquid to be detected to flow up and down in a reciprocating manner are arranged between the water inlet and the water outlet in the defoaming box; the guide pieces are arranged in the first liquid flow cavity and / or the second liquid flow cavity and located close to the liquid level, and the guide pieces are made of hydrophilic materials and extend in the transverse direction to increase the transverse liquid flow distance of the liquid to be measured. By arranging the guide piece, under the drainage effect of the guide piece, liquid flow can be forced to flow by a certain distance in the transverse direction, the transverse flowing distance of the liquid flow below the liquid level is increased, more floating time and time for making contact with the horizontal plane and breaking can be given to bubbles, the probability that the bubbles make contact with the liquid level is increased, and the probability that the bubbles break through the liquid level and overflow is increased; and the defoaming effect and the defoaming efficiency of the device are improved.

The invention relates to the technical field of ultrasonic frozen squid processing, in particular to a processing device for preparing frozen squids by utilizing an ultrasonic technology, which comprises a pre-freezing room, a first ice glazing room is arranged on the side surface of the pre-freezing room, a first ultrasonic ice glazing machine is arranged on the inner side of the first ice glazing room, a quick freezing room is arranged on the side surface of the first ice glazing room, and a second ultrasonic ice glazing machine is arranged on the inner side of the quick freezing room. A second ice glazing room is arranged on the side face of the quick freezing room, a second ultrasonic ice glazing machine is arranged on the inner side of the second ice glazing room, and a freezing room is arranged on the side face of the second ice glazing room; the first ultrasonic ice glazing machine and the second ultrasonic ice glazing machine are arranged, the frozen storage quality of squids is improved through the layered ice glazing technology, bubbles of ice glazing liquid are eliminated through ultrasonic oscillation, and the transparency and adhesive force of an ice layer are improved.

The present application relates to the field of gas-liquid mixing reaction, disclose a kind of microbubble generator, gas-liquid bubble bed reaction device and its reaction method, wherein, the microbubble generator includes Venturi tube (1), the Venturi tube (1) includes taper section (3), throat straight section (4) and gradually expanding section (7), first spiral flow gas hole (13) is provided on the throat straight section (4) and the first spiral flow gas hole (13) is through the wall of tube and is angled with radial direction, the size of the bubble formed in liquid can be reduced by the above technical solution, the residence time of bubble in throat straight section and gradually expanding section is prolonged, so that gas and liquid are mixed uniformly.

The application discloses a kind of filling device and filling method for high-precision energy storage immersed liquid, it is related to energy storage equipment filling technical field, to solve the problem of insufficient precision of existing filling equipment, easy to introduce bubble and low degree of automation.The device includes sequentially connected oil storage tank, gear pump, defoaming chamber, steady flow tank and needle valve, needle valve is sealedly connected with the cooling system to be filled by quick-change connector;Defoaming chamber is built-in baffle and vacuum pump, for eliminating immersed liquid bubble;Steady flow tank is equipped with air bag and pressure regulating valve, absorbs gear pump pulsation to maintain constant pressure, overall realizes automatic operation by PLC controller.The filling method uses "first fast then slow" speed curve, combined with drop mode and pressure maintaining step to improve precision.The application filling precision is high, no bubble is mixed, degree of automation is high, can satisfy the strict requirement of high-precision energy storage equipment to immersed liquid filling, adapt to the scale production demand of energy storage cooling system.

The utility model discloses a pneumatic head sealing performance detection device which comprises a base, a detection cylinder and a gas connecting pipe. The detection cylinder is vertically installed on the base, the detection cylinder is used for containing air tightness detection liquid, a flexible extrusion part is arranged on the side wall of the detection cylinder, and the flexible extrusion part lifts the liquid level height of the air tightness detection liquid through extrusion; the gas connecting pipe is vertically installed in the detection cylinder, the bottom of the gas connecting pipe is connected with a gas source, and the top of the gas connecting pipe is connected with a pneumatic head to be detected. According to the utility model, the liquid level height of the air tightness detection liquid in the detection cylinder is changed by pressing the flexible extrusion part, so that the air tightness detection liquid reaches the detection position of the pneumatic head, the air tightness is judged according to whether the air tightness detection liquid bubbles, and the air tightness detection result of the pneumatic head can be intuitively and quickly obtained. The device has the characteristics of simple structure and convenient operation.

The invention discloses a horizontal continuous casting crystallization cavity low-oxygen copper liquid bubble eliminating method and device, and relates to the technical field of low-oxygen copper liquid continuous casting crystallization, a continuous casting machine shell and a bubble eliminating cavity are included, a continuous casting crystallization mechanism is arranged in the continuous casting machine shell, and a stirring mechanism is arranged in the bubble eliminating cavity. The stirring mechanism comprises a first motor arranged in the bubble eliminating cavity, a sliding groove is formed in the first motor, a sliding block is slidably connected to the interior of the sliding groove, a threaded rod is arranged at the output end of the first motor, a threaded cylinder is in threaded connection to the exterior of the threaded rod, and an air suction cylinder is fixedly connected to the interior of the bubble eliminating cavity. The thorn-shaped stirring fan can stir copper liquid in the bubble eliminating cavity at different heights, so that bubbles in the copper liquid are punctured and eliminated, dead angles are few when the bubbles are eliminated, a vacuum environment is formed in the bubble eliminating cavity, some missing bubbles are eliminated again, and the bubbles can be effectively prevented from being generated again in the copper liquid.

The application discloses a kind of multistage high-efficiency bubble dehumidification separation devices, including separation dehumidification tank body, and the inside of separation dehumidification tank body and located above the import is provided with at least two levels of independent gas-liquid bubble dehumidification component;Two-stage gas-liquid bubble dehumidification component includes cooling heat exchange component and gas inlet pipeline from bottom air inlet, gas-liquid bubble dehumidification component is filled with dehumidification liquid, and the gas in dehumidification liquid is cooled and dehumidified by cooling heat exchange component.Multiple gas bubble dehumidification components, can be mixed with dehumidification liquid to be processed gas, and utilize cooling heat exchange component to reduce gas temperature to be close to consistent with dehumidification liquid temperature, by the temperature difference design of each level dehumidification heat exchange, with better dehumidification efficiency, by multistage bubble dehumidification principle, can carry out efficient dehumidification in high temperature section and low temperature section respectively, suitable for the occasion needing high-precision dehumidification, such as electrolytic water hydrogen production process anode and cathode gas separation and dehumidification treatment.

The present invention relates to a solid-liquid-gas interface mass transfer device and method thereof. The solid-liquid-gas interface mass transfer device includes a pretreatment device for the material to be treated, a pre-storage tank for the material to be treated, a gas and pressure control device, a pulse pressure control valve, a reaction tank for the material to be treated, and a gas-liquid mixing device; the solid-liquid-gas interface mass transfer method includes the following steps: S1. Pretreatment step of the material to be treated; S2. Pre-storage step of the material to be treated; S3. Collision and blasting step; S4. Reaction step of the material to be treated; S5. Finished product completion step; Thus, the material to be treated in solid or gas form can collide with the nano-bubble liquid under the physical action of high pressure and high speed, and with the instantaneous blasting generated when the nano-bubble liquid bubbles burst, the material to be treated can fully carry out chemical reactions, achieving the effect of heterogeneous interface mass transfer.

Bubble separation device (50) comprising• a first channel (51) with an inlet (55) and an outlet (56) for conveying liquid, in particular oil,• and a second channel (52) branching off from the first channel (51) for discharging gas bubbles from the first channel (51),• wherein the first channel (51) is arranged at an angle α of 35° to 55° to the horizontal (200) and the inlet (55) is higher than the outlet (56),• wherein the second channel (52) branches off parallel to the horizontal (200) with a deviation of -10° to +10°,• and wherein the first channel (51) has a first diameter (53) and the second channel has a second diameter (54), wherein the two diameters (53, 54) differ from one another by at most 30%, preferably at most 15%.

The application provides a large-volume uniform bubble generating device with high liquid bubble occupancy, which comprises an air compressor for providing a stable air source, a pressure reducing valve for adjusting the air pressure output by the air compressor, an air flow monitoring device for measuring and dynamically adjusting the air flow into each bubble strip of a bubble generating plate in real time, a first shunt valve and a second shunt valve for shunting air, and a bubble generating plate for generating a uniform bubble field; the application has the following beneficial effects: the combination of the pressure reducing valve and the high-precision air flow monitoring device realizes precise control of the air flow and pressure, improves the uniformity of the bubble field, and avoids the common problem of uneven bubble distribution in traditional equipment; 48 bubble strips of the application are respectively supplied with air through two shunt valves with 24 outlets, and a plurality of micropores are arranged in each bubble strip, so that uniform bubble generation in a large-area water body is realized.

The present invention provides a liquid transfer method and a liquid transfer device, belonging to the field of molecular diagnosis technology, a liquid transfer component and a carrier platform are movably arranged on a base, a plurality of liquid storage tanks and a sensing component are arranged on the carrier platform, and the method comprises: moving the sensing component to below the projection of the liquid transfer component, making the contact end of the liquid transfer component inductively contact with the sensing component, and recording the contact position as the initial position; moving the liquid storage tank to below the projection of the liquid transfer component, determining the first height according to the preset height and the preset liquid transfer amount and descending, and the liquid transfer component absorbs the liquid in the liquid storage tank; controlling the liquid transfer component to rise, moving another liquid storage tank to below the projection of the liquid transfer component, releasing the liquid absorbed in the liquid transfer component into the liquid storage tank, and completing the quantitative transfer of liquid between the plurality of liquid storage tanks in sequence. By controlling the first height, the liquid transfer amount of the liquid transfer component can be accurately controlled. The liquid transfer component does not need to be specially made, and will not be disturbed by bubbles on the liquid surface, the liquid transfer error is small, and the cost is low.

The present invention discloses a pickling tank bubble removal device, which relates to the field of bubble removal technology and includes a pump, an acid filter, a shunt pipe, a guide structure and a bubble breaking structure, wherein the acid filter is located on the upper side of the pump, and the pump is connected to the acid filter, and the liquid outlet of the acid filter is connected to the shunt pipe; the shunt pipe includes a first pipe and a second pipe, one end of the first pipe is connected to the liquid outlet, and the other end of the first pipe is connected to one end of the second pipe, wherein a liquid reflux surface and a bubble breaking structure provided on the lower side of the liquid reflux surface are provided on the inner wall of one end of the second pipe, and a guide structure is further provided on the inner wall of one end of the second pipe, and the guide structure and the bubble breaking structure are directly opposite. It utilizes the driving force of the simple shunt pipe and the pump to produce the effect of separating liquid bubbles, thereby achieving the specific effect of removing bubbles when transporting various solvents or mixed solutions to the wafer wet process area.

The utility model relates to the technical field of slope measuring devices, in particular to a slope measuring device for land engineering, which solves the problems mentioned in the background technology and comprises a machine body, edge strips arranged on the lower portions of the two sides of the machine body, a push frame installed at the bottom of the machine body and connected with the edge strips in a sliding mode, and the push frame is pushed on the edge strips. Edge strips are arranged on the lower portions of the two sides of the machine body and matched with a first guide plate at the front end, a second guide plate at the rear end and a sliding push frame at the bottom, the push frame can slide along the edge strips, the first guide plate and the second guide plate before use, and gravels adsorbed to the bottom of the machine body are effectively pushed and cleared away. The situation that the bottom flatness is destroyed by the adsorbed sand and stone to generate adverse effects on measurement data is avoided, so that the liquid bubble level can perform leveling operation under a flat condition, and the pointer can accurately indicate a gradient value, so that the measurement precision is practically guaranteed, the obtained gradient data is true and reliable, and the measurement accuracy is improved. And an accurate basis is provided for subsequent planning, design and the like of land engineering.

The invention relates to a bubble breaking rectifying tower for preparing high-purity electronic grade molybdenum hexafluoride and a control method, the bubble breaking rectifying tower comprises a plurality of bubble stretching and thinning mechanisms, each bubble stretching and thinning mechanism comprises a gas flow guide frame body, a fixed plate body and a bubble attachment plate, the gas flow guide frame bodies and the fixed plate bodies are arranged on a first mounting bracket at intervals, and the gas flow guide frame bodies and the fixed plate bodies are arranged on a second mounting bracket at intervals; the middle part of the bubble attachment plate is transversely hinged to the top end of the fixed plate body, the bubble attachment plate shields an opening of the gas guide frame body in an unstressed state, and the gas guide frame body and the bubble attachment plate are arranged at an interval; the liquid driving devices are arranged on the second mounting support and used for outputting liquid towards the top of the bubble attachment plate, the bubble attachment plate stretches and thinns a contact line between the foam corresponding fixing plate body and the bubble attachment plate in the rapid swinging process, and after the bubble attachment plate and the gas flow guide frame body are opened, the bubble attachment plate and the gas flow guide frame body are separated from each other. And the bubble attachment plate drives air to flow into the opening so as to break the stretched and thinned part.

The invention relates to the technical field of glass smelting equipment, in particular to a medicinal glass tube multistage gradient energy-saving smelting kiln and a control method.The medicinal glass tube multistage gradient energy-saving smelting kiln comprises a kiln body, a state detection unit and a control unit, the kiln body comprises a pre-melting section, a main melting section, a homogenizing section and a flow guide section which are sequentially communicated, and a blocking weir is arranged between the main melting section and the homogenizing section; a baffle weir is arranged at the upper end of the main melting section, a circulating groove is formed in the upper end of the baffle weir, heating assemblies are arranged in the pre-melting section and the main melting section, and a feeding mechanism used for feeding is arranged in the pre-melting section. When the water content of the raw materials exceeds the standard, the pre-melting power can be increased, the feeding rotating speed is reduced for sufficient drying, the main melting local power can be adjusted to optimize melting when the particle size or content of silica sand fluctuates, and it is ensured that the bubble density, the stone content and the like of molten glass are stabilized within a set range.

The pot cover assembly comprises a cover body, an inner cover and a steam valve arranged on the cover body, the cover body and the inner cover are matched to define a steam channel, the pot cover assembly further comprises an anti-overflow detection piece, the anti-overflow detection piece at least partially surrounds the steam channel, a butt joint channel is arranged in the steam valve, and the butt joint channel is communicated with the steam valve. The flow area of the butt joint channel is smaller than that of the steam channel, and the butt joint channel partially extends into the steam channel to be communicated with the steam channel. According to the utility model, after liquid and bubbles enter the steam channel, the anti-overflow detection piece can respond in time, so that the detection sensitivity and accuracy of the anti-overflow detection piece are improved, and the detection error is greatly reduced. After the bubbles enter the steam valve, the bubbles can be broken in the steam valve, so that even if the liquid is still kept in a transient boiling state by waste heat in the pot, the phenomenon of overflowing from the pot can be reduced.

The invention provides a large-volume uniform bubble generating device capable of realizing high occupancy of liquid bubbles. The air compressor is used for providing a stable air source; the pressure reducing valve is used for adjusting the pressure of air output by the air compressor; the air flow monitoring device is used for measuring the flow of air entering each bubble strip in a bubble generation plate in real time and dynamically adjusting the flow of air entering each bubble strip in the bubble generation plate; the first-stage shunt valve and the second-stage shunt valve are used for shunting air; the bubble generating plate is used for generating a uniform bubble field; compared with the prior art, the invention has the following beneficial effects: through the combination of the pressure reducing valve and the high-precision air flow monitoring device, precise control of gas flow and pressure intensity is realized, the uniformity of a bubble field is improved, the common problem of uneven bubble distribution in traditional equipment is avoided, and the production efficiency is improved. Air is supplied to the 48 bubble strips through the two flow divider valves with one inlet and 24 outlets, and a plurality of micropores are formed in each bubble strip, so that bubbles in a large-area water body are uniformly generated.

The present invention relates to the technical field of magnetic tile cleaning, and in particular to a magnetic tile ultrasonic cleaning device and process. A loading unit is provided, and a plurality of magnetic tiles can be placed at one time through an overlapping component on an annular hanging net. The overlapping component has a simple structure, is convenient for taking and placing the magnetic tiles, and improves the cleaning efficiency of the magnetic tiles. The magnetic tiles dispersedly placed in layers in a circumferential direction do not affect each other during cleaning, and the problem of incomplete cleaning caused by overlapping magnetic tiles is avoided. The cleaning unit is provided, and ultrasonic transducers are staggeredly arranged around the outer end of a specially structured matching cleaning pool. This ensures that bubbles generated by ultrasonic vibrations are relatively uniform in the liquid in the matching cleaning pool, ensures that the cleaning levels of magnetic tiles at different positions and different surfaces of the same magnetic tile are consistent, and comprehensively disturbs the liquid in the matching cleaning pool, which can drive the liquid bubbles to vibrate comprehensively and violently, thereby achieving a more ideal cleaning effect.

The utility model discloses a foam testing device for a stripping solution. The foam testing device comprises a device body, a built-in air pump, a transparent graduated cylinder and a bottom replaceable air outlet hole, a built-in air pump is arranged in the device body, and a heating device, a temperature sensing device and a water bath heating device are arranged on the device body; the device body is further provided with an air flow adjusting knob used for adjusting the built-in air pump. A bottom replaceable air outlet is formed in the center of the bottom of the transparent measuring cylinder with the scales. The device is used for measuring the foaming capacity and the stability of liquid, and can effectively reduce the influence of foam on PCB production and improve the product quality and the production efficiency by quantitatively testing and evaluating the foam condition of related liquid medicine in advance.

The utility model relates to a biological liquid bubble blowing deodorization system based on a U-shaped pipe principle, which comprises a bubble generating device assembly unit, a deodorization liquid supply assembly unit and an ammonia gas and hydrogen sulfide gas detector, and the deodorization liquid supply assembly unit comprises a high-position liquid supply pool, a switch water valve and a U-shaped hose; the height of the liquid level of the high-level liquid supply pool is not smaller than the upper limit of the liquid level in the bubble generating device assembly unit, and one end of the high-level liquid supply pool is communicated with a liquid inlet of a bubble generating device in the bubble generating device assembly unit through a U-shaped hose; a switch water valve used for controlling the U-shaped hose to be connected or disconnected is arranged on the U-shaped hose. The problems of energy waste and high system operation cost caused by atomization deodorization of an existing high-pressure spraying deodorization technology and the problem of high energy consumption of an existing bubble blowing deodorization system are solved.

The application relates to the technical field of electronic heat dissipation, and particularly provides a three-dimensional vapor cavity heat dissipation device, aiming at solving the problems of low natural convection heat dissipation efficiency and poor heat dissipation effect in the prior art. In the application, pseudo-boiling of a working medium in the evaporation cavity is caused, the heat absorption capacity of the working medium is increased, the heat transfer rate of the working medium is improved, heat is transferred to the evaporation fins, the working medium in the evaporation fins is heated to cause nucleate boiling to form a vapor-liquid bubble-shaped mixed flow, the bubbles rise to the condensation fins under the action of buoyancy, partial condensation is completed, the remaining steam is condensed in the condensation cavity and returns to the evaporation fins to be heated and evaporated, and heat dissipation is completed. The application provides the three-dimensional vapor cavity heat dissipation device with high heat transfer, small temperature difference and high heat dissipation efficiency, and can effectively solve the problems of low natural convection heat dissipation efficiency and poor heat dissipation effect.

The present application relates to a control system for bubbles in a liquid film, and a wafer cleaning device and a wafer cleaning method. The control system for bubbles in a liquid film comprises a megasonic generator, a sampler, a bubble detection module and a controller, wherein the megasonic generator is used for transmitting acoustic energy to a liquid film on a wafer, so as to clean the wafer; the sampler is used for acquiring a liquid in the liquid film on the wafer during a process in which the megasonic generator cleans the wafer; the bubble detection module is connected to the sampler, and is used for performing bubble detection on the liquid acquired in the sampler and determining bubble parameters in the liquid; and the controller is connected to the bubble detection module, and is used for adjusting operation parameters of the megasonic generator on the basis of the bubble parameters, so that the bubble parameters are within a preset range. The present application solves the problem in the prior art of the "cavitation effect" of bubbles caused by the expansion, contraction and oscillation of the bubbles leading to the collapse of and damage to a pattern structure on a wafer, thereby improving the wafer production yield.

This invention relates to a defoaming distillation column and control method for preparing high-purity electronic-grade molybdenum hexafluoride, comprising: several bubble stretching and thinning mechanisms, each including a gas guiding frame, a fixed plate, and a bubble attachment plate. The gas guiding frame and the fixed plate are spaced apart on a first mounting bracket. The middle part of the bubble attachment plate is laterally hinged to the top of the fixed plate. When the bubble attachment plate is not under stress, it blocks the opening of the gas guiding frame. A gap is provided between the gas guiding frame and the bubble attachment plate. Several liquid driving devices are mounted on a second mounting bracket. The liquid driving devices output liquid toward the top of the bubble attachment plate. During the rapid oscillation of the bubble attachment plate, the contact line between the foam and the fixed plate and the bubble attachment plate is stretched and thinned. After an opening appears between the bubble attachment plate and the gas guiding frame, the bubble attachment plate drives air into the opening, thereby breaking the stretched and thinned portion.

The utility model relates to a bubble-liquid separator which comprises a barrel (1), a vacuumizing opening (1.1) is arranged on the barrel (1), a liquid outlet (1.2) is arranged at the bottom of the barrel (1), a rotor (3) is arranged at the upper part in the barrel (1), an upper baffle (5) is arranged between the upper part of the rotor (3) and the vacuumizing opening (1.1), and a liquid inlet pipe (6) is upwards inserted into the barrel (1) from the bottom of the barrel (1). And a lower baffle (4) is sleeved on the top of the liquid inlet pipe (6) in the cylinder body (1) and is positioned at the lower part of the rotor (3). The bubble-liquid separator disclosed by the utility model has the advantages of simple structure and low cost.

The application discloses an in vivo screening system and a screening method. The system comprises a loading module for taking fish from a fish tank and pushing the fish to move in a main hose; the drug release imaging module comprises a microfluidic chip, the microfluidic chip comprises a main channel and a plurality of channels connected with the main channel; the fish loading channel is connected with an output channel of the loading module to receive the fish of the output channel; the gas inlet channel is used for injecting gas to divide the liquid bubble loaded with the fish and push the liquid bubble to move in the channel through the injected gas; the drug release imaging module is used for injecting a drug solution into the liquid bubble through a drug release channel; and whether the fish needs to be pushed into a second observation channel after entering the first observation channel is determined according to the orientation of the fish in the liquid bubble, so that the fish is observed. The embodiment of the application is favorable for improving the efficiency and accuracy of in vivo screening experiments and saving experimental cost. The application can be widely applied in the field of automatic biological experiment technology.

The invention discloses a dual hypergravity reactor and a method for using the same, which relates to the field of hypergravity engineering technology. The reactor comprises an outer shell, a liquid feed pipe and a gas feed pipe. A first transmission shaft, a moving disk, parabolic blades and a fixed disk are arranged in the outer shell, and the moving disk is provided with jet holes and parabolic blades. A driving assembly for driving the first transmission shaft to drive the moving disk to rotate is provided on the outer shell. In the reactor of the present invention, liquid and gas form mist-like gas-liquid bubbles after passing through a nozzle. The gas-liquid bubbles are deflected at high speed by the moving disk blades, parabolic blades and fixed disk blades, and are broken through the jet holes to form a large and continuously updated micro-gas-liquid bubble surface area. The tortuous and high-kinetic energy flow channel intensifies the extremely thin gas-liquid bubble body and the surface renewal, forming an ultra-thin gas-liquid film bubble. At the same time, after the ultra-thin gas-liquid film bubble passes through multiple layers of moving disk blades and fixed disk blades, the hypergravity gas-liquid bubble grows and explodes rapidly, thereby generating a high-temperature and high-pressure hypergravity field, so that two-phase or multi-phase substances react rapidly.

The utility model relates to the technical field of semiconductors, in particular to an etching tank structure capable of reducing bubbles of etching liquid medicine. Comprising an outer groove wall and an inner groove wall, an outer groove is formed between the outer groove wall and the inner groove wall, the space in the inner groove wall is an inner groove, an outer groove guide plate is arranged above the outer groove and connected with the inner groove wall, and an included angle which is an acute angle is formed between the outer groove guide plate and the inner groove wall; an inner groove guide plate is arranged in the inner groove and located above the inner groove inlet, and a plurality of through holes are formed in the inner groove guide plate. The outer groove flow guide plate guides bubbles to be intensively discharged at an acute angle of 60-75 degrees, the inner groove flow guide plate disperses liquid medicine and prolongs the path of the liquid medicine through large-aperture staggered through holes, and the bubble reduction rate is larger than or equal to 90% on the premise that the flow speed of the liquid medicine is kept to be 0.8-1.5 m / s. And the guide plate is made of a stainless steel material, so that the guide plate cannot be corroded by etching liquid medicine, and is suitable for large-scale industrial application of a high-precision semiconductor wet etching process.

This invention provides a composite gas-liquid bubble generator and its application. The gas-liquid bubble generator has a simple structure, is easy to process, assemble, and install, and can effectively reduce bubble size and significantly improve the size uniformity of micron-sized bubbles. The gas-liquid bubble generator includes a first Venturi structure and a second Venturi structure. The first Venturi structure is used to compress and shear the liquid phase material onto the gas phase material to obtain a first gas-liquid mixture containing microbubbles. The second Venturi structure is connected to the first Venturi structure and is used to further compress and shear the microbubbles in the first gas-liquid mixture to obtain a second gas-liquid mixture. The second Venturi structure includes a bubble cap structure, a hollow second contraction section, and a hollow second expansion section. The bubble cap structure includes a bubble cap shell, within which a flow channel, a buffer space, and an annular channel located around the flow channel are formed.

The utility model relates to radar current meter technical field, concretely relates to a radar current meter with balance structure, including current meter, and the connecting rod fixed connection of current meter through balance subassembly and outside, and balance subassembly includes chassis, locking sleeve, connecting plate, erects cage and pipe clamp, and the top of chassis is fixed in the top of current meter, and the top of chassis is fixed with liquid bubble pipe, and locking sleeve includes bottom bar and the sleeve that sets up in the outside of bottom bar, and the bottom of connecting plate is fixed with top bar, and top bar sets up in the sleeve, and the top of connecting plate is fixed with erects cage, and the top of erects cage is fixed with multiple groups of pipe clamp, because bottom bar and top bar are screw rod structure of spiral opposite, so in the process of moving, will move to inside / outside simultaneously, realizes the height adjustment of this side, and multiple locking sleeves and liquid bubble pipes are arranged on the connecting plate, can carry out adjustment after monitoring multiple directions, satisfy the functional requirement of balance.