754 results about "Liquid surfaces" patented technology

The invention discloses an agricultural plant protection unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles. The agricultural plant protection unmanned aerial vehicle comprises a vehicle body provided with supporting legs and further comprises wings, the multiple wings are circumferentially and evenly arranged on the vehicle body, the tail end of each wing is provided with a fan blade driven by a motor, and the side, away from the fan blade, of each wing is provided with a nozzle; the water tank is arranged on the lower side of the machine body, and a feeding assembly for supplying water to the nozzles is arranged on the water tank; the anti-shaking assembly is arranged in the water tank and used for restraining water in the water tank from shaking; the movable floating plate capable of moving up and down along with the liquid level is attached to the liquid level all the time, the elastic element is used for buffering, shaking of liquid in flight is effectively restrained, and flight stability is guaranteed.

The invention discloses a phosphorus trichloride production reaction kettle with a defoaming structure, and relates to the technical field of reaction kettles. According to the phosphorus trichloride production reaction kettle with the defoaming structure, through cooperation of the obliquely-installed sawtooth plates and the protruding strip rings, during rotation, the sawtooth plates drive foam on the liquid level to move towards the periphery, in the movement process, the foam on the liquid level is separated from the protruding strip rings, and the foam on the liquid level is removed. The sawteeth at the top of the sawtooth plate are in contact with accumulated foam, so that part of the foam is broken, the unbroken foam outwards impacts the inner wall of the convex strip ring under the action of centrifugal force, so that the foam is in contact with the convex strips uniformly arranged on the inner wall of the inner convex ring, and compared with a smooth inner wall of a traditional reaction kettle, the contact area is reduced when the convex strips of the inner convex ring are in contact with the foam; and the pressure during impact is increased, so that the foam is broken under higher pressure, and the defoaming effect is improved.

The utility model relates to a wafer cleaning tank, and belongs to the technical field of wafer production equipment. The air injection tank is arranged in the overflow tank, impurities floating on the liquid surface can be blown to the other side by the air injected from the air injection tank, the impurities floating on the treatment liquid are prevented from floating on the liquid surface all the time, the impurities can flow into the overflow tank along with water flow, and the wafer cleaning effect is improved.

The invention relates to the technical field of bean product processing, and discloses a defoaming device for bean product production and processing, the device comprises a base, a base plate and a discharging barrel, one side of the top of the base plate is fixedly provided with a device main body, one side of the device main body is fixedly provided with a processing cylinder, and the defoaming device further comprises an eliminating assembly arranged in the processing cylinder, vertical plate parts are symmetrically and fixedly connected to the top of the base, a feeding assembly is arranged between the two vertical plate parts, the eliminating assembly comprises a longitudinal plate fixedly installed on the upper portion of the interior of the processing barrel, a driving motor is fixedly installed at the top of the longitudinal plate, and a rotating shaft is fixedly connected to the output end of the driving motor; and a central fan blade and a side gear are fixedly connected to the outer side of the rotating shaft, so that the problems that only a small amount of large bubbles are punctured by the tip of the device, and most of the bubbles are still likely to remain on the liquid level position, so that the bubble eliminating effect is reduced, and the subsequent bean product processing quality and taste are influenced are solved.

The invention belongs to the technical field of high-precision liquid level detection, and particularly relates to a high-precision liquid level detection method which comprises an installation preparation module, an installation position determination module, a comprehensive consideration module and a special installation method module. And the liquid level detection precision can be obviously improved. The photoelectric sensor is sensitive to light change and suitable for directly detecting the liquid surface; the ultrasonic sensor determines the distance by measuring the propagation time of sound waves, and is relatively insensitive to the change of liquid properties. The combination of the two can complement deficiencies and reduce errors.

The invention relates to the technical field of separation and purification devices, in particular to a separation and purification device for 8-hydroxyquinoline crystallization. The device comprises a crystallization kettle used for cooling an 8-hydroxyquinoline solution, a stirring assembly is arranged in the crystallization kettle, the stirring assembly is provided with a plurality of cleaning assemblies in the radial direction of the crystallization kettle, each cleaning assembly comprises a scraping part and a pneumatic part, the scraping parts are slidably connected to the side, close to the inner wall of the crystallization kettle, of the stirring assembly, and the pneumatic parts are arranged on the scraping parts. The pneumatic part is used for pushing the scraping part to be close to the inner wall of the crystallization kettle; the increased air pressure in the pressure-bearing cavity pushes the pressure-bearing plate to slide towards one side close to the contraction groove, the telescopic arm is pushed out of the contraction groove through the sliding rod, and due to the fact that large air pressure is accumulated in the pressure-bearing cavity before the telescopic arm stretches out of the contraction groove, the conical part is inserted into the crystal above the liquid level at the moment that the top of the contraction groove is completely out of shielding of the installation groove. The telescopic arm instantly releases large force, and it can be ensured that the conical part is inserted into crystals tightly combined with the inner wall of the crystallization kettle.

The invention provides an offshore floating type platform PEM hydrogen production gas-liquid separation device which comprises a separator, a first outlet pipe is arranged at the top of the separator, a second outlet pipe is arranged at the bottom of the separator, and an inlet pipe is arranged on one side of the separator; the first separation part is obliquely arranged in the separator, and a plurality of first mesh holes are formed in the first separation part; the second separation part is arranged in the radial direction of the separator and located above the first separation part, and second mesh holes are formed in the second separation part; the separator has a large length-diameter ratio, the first separation piece and the second separation piece are matched with the separator with the large length-diameter ratio, the fluctuation area of the liquid level during shaking is reduced, the stability of the separation efficiency is further guaranteed, it is guaranteed that oxygen can be safely discharged, and the problem that liquid enters an oxygen pipeline to damage an instrument is solved.

The invention relates to the field of liquid level measurement, and discloses a liquid level measurement method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a liquid level signal obtained by monitoring a to-be-measured liquid level at present and / or the acceleration during liquid movement; the liquid level signal is processed through a preset first filtering model, a first measurement result of the liquid level is obtained, and the first filtering model processes the liquid level signal through historical liquid level signals in the sliding window; adjusting the size of the sliding window according to the acceleration to obtain a second filtering model, and obtaining a second measurement result of the liquid level by using the second filtering model; a third filtering model corresponding to the current liquid level state is determined according to the fluctuation condition of the liquid level signal, and a third measurement result of the liquid level is obtained through the model; and performing weighted fusion on at least two of the first measurement result, the second measurement result and the third measurement result to obtain a final measurement result. Different filtering models are fused, and the reliability of liquid level measurement is improved when the liquid is in a non-stationary state.

The invention discloses a hydrostatic leveling system terminal edge calculation method with universality. The height from the liquid level to be measured to the bottom of the static leveling instrument is defined as the liquid level height, and a base rock mark is used as a reference point; the upper computer is connected with the static level gauge and then triggers correction, liquid level height measurement values corresponding to the magnetostriction sensor and the photoelectric sensor are obtained, the large liquid level height measurement value serves as the standard height, and the average value of the difference values corresponding to the two liquid level height measurement values within the preset time length serves as the liquid level error value. The liquid level error value is added to the small liquid level high measurement value, so that the corresponding measurement values of the magnetostriction sensor and the photoelectric sensor are unified; settlement difference data are obtained through a magnetostrictive sensor and a photoelectric sensor, the accumulated settlement starting time is determined after the static leveling instrument is installed for the first time, the negative value of the liquid level height difference value of a layering mark and a bedrock mark at the time point is calculated to serve as the first adjustment difference, and the settlement difference reported after the starting time point is the cumulant relative to the starting time point.

The invention discloses an in-vitro liquid level measurement method and device based on millimeter wave radar and a medium, and relates to the technical field of liquid level measurement, and the method comprises the steps: collecting geometric parameters of a container, building a container coordinate system, and forming static background data; the millimeter wave radar array is controlled to radiate millimeter wave signals in sequence, a receiving channel receives reflection echoes, amplification, frequency mixing, filtering and sampling processing are carried out, and array time sequence data are obtained; according to the array time sequence data, generating a distance direction frequency spectrum data set, combining static background data to carry out background deduction, executing an incident direction estimation algorithm, obtaining scattering point cloud under a container coordinate system, and generating a liquid level two-dimensional contour; based on the two-dimensional contour of the liquid level and the geometric parameters of the container, effective bottom surface grids are screened, the estimated value of the liquid volume in the container is obtained and converted into the equivalent liquid level height, and the final liquid level height is obtained. The two-dimensional fluctuation form of the liquid level is finely described, and the liquid volume and liquid level height measurement precision is improved.

The invention discloses a semiconductor industry wastewater treatment system and a configuration method, the semiconductor industry wastewater treatment system comprises an ultrafiltration device, a reverse osmosis device and a gas-liquid separation device between the ultrafiltration device and the reverse osmosis device, the system uses a tangential inflow assembly to cooperate with a flow guide assembly in a rotational flow area to force fluid to rotate and descend, and microbubbles in ultrafiltration effluent are separated through centrifugal force; releasing the protective gas by using the scavenging assembly to replace the separated gas and reduce the dissolved oxygen; liquid surface bubbles are physically prevented from entering the downstream through an anti-vortex component with the top closed and the side wall provided with holes in the liquid outlet assembly. According to the semiconductor industry wastewater treatment system, the problems of high-pressure pump cavitation, reverse osmosis membrane air resistance and oxidation pollution blockage caused by microbubbles and high dissolved oxygen are effectively solved, the stability of the system is remarkably improved, and the service life of equipment is prolonged.

The invention relates to the technical field of stirring and emulsifying, and particularly discloses a plant growth regulator stirring and emulsifying device which comprises a tank body, a middle shaft is coaxially and rotatably assembled in the tank body, an emulsifying assembly is arranged on the middle shaft, and an upper hopper body and a lower hopper body are further arranged in the tank body and used for buffering powder and liquid materials respectively; a material barrel is arranged on the emulsifying assembly, a sealing partition plate is arranged in the material barrel, the sealing partition plate can ascend and descend in the material barrel along with rotation of the emulsifying assembly, and an upper cavity is formed between the top of the sealing partition plate and the material barrel; according to the stirring and emulsifying device for the plant growth regulator, automatic supplementing and adding of powder auxiliary materials and liquid auxiliary materials in the charging barrel are achieved through lifting of the sealing partition plate, the auxiliary materials can be directly added from the middle of the materials, the time for gradually permeating and dispersing the auxiliary materials downwards from the position above the liquid level is shortened, the dispersing efficiency of the auxiliary materials in the materials is improved, and the stirring and emulsifying efficiency of the plant growth regulator is improved. The mixing speed of the materials and the auxiliary materials is accelerated.

The invention discloses a spin-coating acceleration self-adaptive control method based on liquid level disturbance feedback. The method comprises the following steps: collecting a liquid level disturbance signal; extracting liquid level parameters and obtaining a disturbance energy spectrum; establishing a disturbance-film thickness correlation function; designing an adaptive control algorithm; and performing closed-loop execution and optimization. According to the method, the liquid level morphology change data is obtained by using a high-speed camera and a laser reflection method, and the disturbance amplitude, frequency and phase characteristics can be extracted in real time, so that the liquid level stability is quantitatively represented. According to the method, a correlation model between liquid level disturbance parameters and film thickness evolution is established. By coupling the disturbance amplitude and hydrodynamic characteristic parameters (such as Reynolds number, Marangoni number, viscosity and volatilization rate), the corresponding relation between the disturbance intensity and the film thickness deviation is constructed, and the film forming trend of different spin coating stages can be dynamically predicted. According to the invention, a self-adaptive acceleration control algorithm based on disturbance feedback is adopted, and closed-loop optimization control of the spin-coating process is realized.

The utility model discloses a rehydration device for bamboo shoot processing, which belongs to the field of bamboo shoot processing and comprises a tank body. The feeding frame is communicated with the top of the tank body; a cover plate is hinged to the feeding frame. The discharging frame is communicated with the bottom of the tank body; the plugging piece is arranged at the bottom of the discharging frame; the plugging piece is used for sealing the bottom of the discharging frame; the functional part is arranged in the tank body and penetrates through the outer wall of the tank body; and the functional part is used for pressing the bamboo shoots placed in the tank body into water. According to the rehydration device for processing the bamboo shoots, most of the bamboo shoots can be pressed into water to be soaked through grids of the separation net, and the bamboo shoots are prevented from floating on the liquid surface, so that the soaking effect is improved; and most of bamboo shoots can be drained, manual fishing is not needed, time and labor are saved, and efficiency is higher.

A water tank (100) and an air conditioning device using same. The water tank (100) comprises: a tank body (10) configured to contain a liquid; and a water inlet (20) arranged at the top of the tank body (10) for the liquid to enter. The water tank (100) further comprises: a flow guide wall (30) protruding and extending from the edge side of the water inlet (20) towards a bottom surface (111) of the tank body (10), wherein the liquid entering the tank body (10) from the water inlet (20) can flow towards the bottom surface (111) of the tank body (10) along the surface of the flow guide wall (30). According to the water tank (100), since the flow guide wall (30) protrudes and extends towards the bottom surface (111) of the water tank (100), a water flow can flow towards the bottom surface (111) of the water tank (100) under the guidance of the flow guide wall (30), thereby suppressing the situation where, after entering the water tank (100) through the water inlet (20), the water flow directly impacts or drips onto the bottom surface (111) of the water tank (100) or the liquid surface from the top surface (121) of the water tank (100), generating water flow noise or dripping noise, and thus effectively suppressing the formation of noise.

The present invention performs an appropriate plasma treatment on an edge part of a substrate while suppressing the effects of the plasma on a central section of the substrate.　Provided is a substrate treatment device comprising: a chamber that accommodates one or a plurality of substrates in an upright state; a liquid supply line that supplies a liquid into the chamber; a vacuum pump that is connected to an upper part of the chamber, and that forms a vacuum in a space in the chamber above a liquid surface in a state in which the liquid is present in the chamber so that a section of the substrate is exposed from the liquid surface; a plasma generator that is arranged in the upper part of the chamber, and that performs a plasma treatment on the section of the substrate exposed from the liquid surface; and a control module that controls each part of the substrate treatment device.

The application provides a kind of calibration-free liquid level detection device, method and washing machine, comprising: first TMR sensor is arranged above the liquid surface to be measured, second TMR sensor is arranged below the liquid surface to be measured, magnetic float floats on the liquid surface to be measured;The magnetic field intensity detected by the first TMR sensor is collected simultaneously, and the magnetic field intensity detected by the second TMR sensor is collected simultaneously;The ratio of the two magnetic field intensities is calculated;Then the liquid level height of the liquid surface to be measured is calculated according to the ratio of the two magnetic field intensities.The liquid level height of the liquid surface to be measured can be calculated by the ratio of the magnetic field intensity detected by the double TMR sensor, the ratio of the magnetic field intensity can offset the magnetic field attenuation of permanent magnet, common mode electromagnetic interference, sensor individual difference, without factory calibration and regular calibration, can greatly improve production efficiency, reduce maintenance cost;Without complex mechanical structure, installation is convenient;No mechanical contact wear, overall reliability is high, life is significantly better than traditional detection scheme.

The method, device, equipment and storage medium for rendering liquid in a container are provided. The method comprises the following steps: acquiring a liquid model, an open container model and a liquid surface control point; determining a cup opening control point on the open container model; and rendering and displaying the liquid model in the open container model according to the liquid surface control point and the cup opening control point. By using the above technical solution, the rendering of the liquid model in the open container model conforms to the physical law, and rendering errors are avoided.

The utility model discloses a safety belt for preventing high hanging by utilizing a liquid level height difference principle, which relates to the field of building construction and comprises a safety rope, a safety belt is arranged at one end of the safety rope, a hanging part for hanging is arranged at the other end of the safety rope, and a detection device is arranged in the safety rope and is used for detecting the height difference of two ends of the safety rope. An alarm device is arranged on the side, close to the hanging part, of the safety rope, when the detection device detects that the end, connected with the safety belt, of the safety rope is higher than the end, connected with the hanging part, of the safety rope, the alarm device is triggered and sends an alarm signal to a construction manager in time, and the construction manager supervises corresponding workers to correct and improve in time. A power supply assembly is arranged on the side, close to the hanging part, of the safety rope and used for providing electric energy for the detection device and the alarm device. The safety belt has the effect of improving the use safety of the safety belt.

The invention belongs to the technical field of reaction kettles, and discloses a high-efficiency polymerization reaction kettle for producing a polycarboxylic acid water reducer, the high-efficiency polymerization reaction kettle comprises a reaction kettle body, a stirring plate I and a stirring plate II, a composite rotating part is rotatably mounted in the reaction kettle body, the stirring plate I and the stirring plate II are fixedly connected to the outer surface of the composite rotating part, and the stirring plate I and the stirring plate II are fixedly connected to the outer surface of the composite rotating part. A midway injection mechanism is arranged in the composite rotating part, the composite rotating part rotates around the midway injection mechanism in the composite rotating part, and the midway injection mechanism is used for injecting the material liquid into the mixed liquid in the stirring reaction period. According to the invention, the key additive is directly sprayed to the specified depth in the reaction liquid instead of being only added on the liquid surface, so that the problem of over-high local concentration is avoided, the material can be instantly and uniformly dispersed in the reaction system, the stability and controllability of the reaction are greatly improved, the high consistency of the product performance is ensured, and the product quality is improved. Accurate, multi-point and deep injection of materials in the reaction process is achieved.

The application discloses an openable light shield for an open device or a pool liquid surface and an application method thereof, wherein the light shield comprises a light shield frame, blades are arranged on the light shield frame, the blades are movably arranged on the light shield frame through pivots, the blades are connected with push rod mechanisms, the push rod mechanisms are connected with worm gear operating mechanisms, the push rod mechanisms drive the blades to open and close on the light shield frame through the worm gear operating mechanisms. The application provides a convenient, flexible and firm light shielding facility, which can not only prevent algae in a pool from growing and breeding on fillers or components in the pool through photosynthesis, but also can be conveniently opened at any time to observe the operation condition in the pool, so that operation parameters of the facility can be adjusted and maintenance plans can be determined; meanwhile, the blades of the light shield can be quickly disassembled to facilitate replacement of components and invalid fillers in the pool, and the light shield also has the ability to resist strong wind, heavy rain and snow.

To provide a technique capable of selectively processing a desired surface among inner surfaces of a recess formed in a substrate.SOLUTION: (a) providing a substrate having a first end and a second end, the first end defining at least a portion of an inner surface of a recess, the second end being different from the first end; and (b) exposing the substrate to a treatment solution comprising a liquid reactive with the first end and an additive that reduces the surface tension of the liquid, thereby selectively removing the first end relative to the second end.SELECTED DRAWING: Figure 4

The application relates to a double-cavity vacuum spray type oil degassing method, device and equipment. The method comprises the following steps: turning on an oil supply channel, supplying oil to a low-speed oil cavity until a first position is reached to obtain a first feedback signal; controlling a gas mixing channel to be turned on according to the first feedback signal, mixing oil gas in the high-speed oil cavity to obtain oil gas mixed liquid; controlling an oil discharge channel to be turned on and discharging oil from the oil cavity at high speed to obtain a negative pressure signal; controlling the oil supply channel to be turned on according to the negative pressure signal, supplying oil to the oil cavity at high speed until a second position is reached and the oil temperature reaches a temperature setting value to obtain a second feedback signal; controlling a circulating degassing channel to be turned on according to the second feedback signal, separating oil gas at high speed within a second time to obtain to-be-discharged gas and a third feedback signal; and controlling a gas collecting channel to be turned on according to the third feedback signal, discharging the to-be-discharged gas into a gas collecting tank at low speed until an oil liquid surface reaches a first position of the oil liquid surface, so that oil degassing of the oil cavity is completed.

The invention relates to a method of manufacturing a liquid ejecting head, a liquid ejecting head, and a liquid ejecting apparatus. An object of the present disclosure is to prevent an adhesive from protruding into an opening provided in a substrate of a liquid ejecting head. An embodiment of the present disclosure is a method of manufacturing a liquid ejecting head in which a recess is formed such that a width in an X direction and a width in a Y direction satisfy P1 > = P3 > = P2, p1 is a pressure generated on a liquid surface which is an end surface of an adhesive adjacent to a channel in a connection region after the connection region is formed but before curing, without the adhesive protruding from the connection region; p2 is a pressure generated on a liquid surface which is an end surface of the adhesive adjacent to the channel when the adhesive protrudes from the connection region.

The invention discloses a growth method of an alloy metal single crystal, which comprises the following steps: loading an alloy raw material containing a target alloy metal single crystal into a crucible, placing the crucible in a vacuum furnace, purifying the atmosphere in the vacuum furnace, and filling protective gas; heating until the alloy raw material is fully molten, filling set gas to normal pressure, and keeping the temperature to enable the molten liquid to reach a saturated state; cooling at a set cooling rate to form crystals on the surface of the melt; and naturally cooling to room temperature, taking out the crucible, and transferring and treating the surface crystal to obtain the alloy metal single crystal. A set gas is introduced into alloy melt or a crucible material is used for dissolution, two-dimensional single crystals are formed on the surface of the melt in the cooling process, and the two-dimensional single crystals serve as a template to induce metal single crystals to grow from the surface. The method is simple in principle, novel and easy to operate.

The invention relates to the technical field of preservation, in particular to a biological enzyme preparation preservation device.The biological enzyme preparation preservation device comprises a test tube, a sealing plug, a clamping jaw, a probe rod, a tank body and a heat preservation tape. Through the three-section tank body, a liquid enzyme preparation can be conveniently and rapidly taken and placed, an appropriate preservation environment can be provided for the liquid enzyme in cooperation with an internal temperature adjusting mode, and the preservation effect is good. Negative effects caused by external illumination and temperature are reduced, and the optimal activity is ensured; by means of the ball cage immersed in the liquid enzyme reagent, liquid enzyme can be promoted to flow below the liquid level, while bubbles are avoided, enzyme dry powder in a wall-hanging or precipitation state can be scoured and scattered through the acceleration effect of the spiral belt on the liquid enzyme preparation, and the dissolution rate of the enzyme dry powder can be further increased in cooperation with conical path swinging of the test tube; and the quality of the liquid enzyme is improved.

The utility model relates to a full-working-condition immersed liquid cooling device, which comprises an evaporation section, a condensation section, a mounting bracket and a liquid absorption core coating layer, and is characterized in that the evaporation section is provided with an evaporation cavity filled with a liquid working medium, one end of the mounting bracket is mounted on the bottom wall of the evaporation cavity, and the other end of the mounting bracket is supported on one side, close to the bottom wall of the evaporation cavity, of a power element; the wick coating layer coats at least part of the outer surfaces of the power element and the mounting bracket, and a liquid working medium at the bottom of the evaporation cavity can be adsorbed to the outer surface of the power element through the wick coating layer; the liquid working medium in the coating layer of the liquid absorption core can absorb heat to be gasified into a gaseous working medium, enters the condensation section, releases heat to be liquefied into a liquid working medium in the condensation section and flows back to the evaporation section. According to the full-working-condition immersed liquid cooling device provided by the invention, the problems that the power element is intermittently exposed above the liquid level of the working medium due to sudden acceleration change generated in the operation of the mobile equipment, so that the power element is easily locally overheated and even is subjected to dry burning are solved.

This invention belongs to the field of molten salt energy storage technology, specifically relating to a molten salt cryogenic tank with a liquid level-following annular cavity. The molten salt cryogenic tank includes a tank body and a stirrer. The stirrer includes a motor mounted on the top of the tank body, a drive shaft extending into the tank body, and a flow impeller mounted on the lower end of the drive shaft. An inlet and an outlet are provided on the side wall of the tank body. An annular cavity is provided at the molten salt surface. The annular cavity has a hollow structure, and its overall density is less than that of the molten salt, allowing it to float on the molten salt surface and move up and down with changes in the molten salt level. A central opening in the annular cavity allows the drive shaft and flow impeller to pass through. This invention, through continuous regulation of the molten salt near the liquid surface by the annular cavity, weakens the liquid surface temperature stratification and flow stagnation phenomena, raises the minimum temperature inside the cryogenic tank, reduces the risk of molten salt crystallization in the liquid surface area, and improves the safety and reliability of the cryogenic tank operation.

The application relates to a cold storage tank water distributor structure and a cold storage tank system. The cold storage tank water distributor structure comprises an overflow pipe, a blow-off port, an upper water distributor with lateral water outlet, a cold storage tank hot end main pipe, a lower water distributor with lateral water outlet and a cold storage tank cold end main pipe. The overflow pipe and the blow-off port are respectively arranged in communication with the cold storage tank. The upper water distributor is arranged in the cold storage tank in a floating mode and located at the upper part of the cold storage tank. The lower water distributor is arranged in the cold storage tank in a fixed mode and located at the lower part of the cold storage tank. One end of the cold storage tank hot end main pipe is arranged in communication with the upper water distributor. One end of the cold storage tank cold end main pipe is arranged in communication with the lower water distributor. The upper water distributor is arranged in a floating mode, can float with the change of the liquid level, absorbs the displacement caused by the liquid level difference or temperature expansion, ensures the stable operation of the system, the upper water distributor and the lower water distributor respectively have lateral water outlet, significantly reduces the liquid surface disturbance, maintains the cold and hot stratification of the tank body, and has the advantages of hydraulic stability, uniform water distribution, energy saving and high efficiency.

The invention relates to the technical field of continuous casting, in particular to a method for monitoring and judging a flowing mode of molten steel in a slab crystallizer, which comprises the following steps of: acquiring a time sequence image of the liquid level of the crystallizer, and dividing the liquid level into a plurality of monitoring sub-areas by taking a water gap as a center; based on the time sequence image, flame characteristic parameters of all the monitoring sub-areas are extracted, and the flame characteristic parameters comprise the flame coverage area proportion and the flame height; based on the flame characteristic parameters, determining distribution characteristics of a flame-free area of the liquid level; and based on the liquid level flame-free area distribution characteristics and a plurality of preset flame height threshold values, the molten steel flowing mode is determined through multi-stage logic judgment. The monitoring equipment is far away from a high-temperature area, low in complexity, long in service life, free of continuous input of consumables and low in cost, the liquid level of the crystallizer cannot be disturbed in the monitoring process, nondestructive monitoring is achieved, and the flowing state on the liquid level of the crystallizer can be continuously monitored for a long time.