1111 results about "Liquid surfaces" patented technology

The invention discloses a pouring machine flow control system based on multi-parameter feedback and PID dynamic adjustment, and relates to the technical field of automatic control of mold pouring, the system comprises a tilting parameter module, a liquid level dynamic modeling module, a flow adaptive control module and an execution mechanism module; the tilting parameter module collects the angular velocity and angle data of a casting ladle in real time, the liquid level dynamic modeling module calculates the liquid level height according to the angular velocity, the angle data and the geometrical shape of the casting ladle, and the flow self-adaptive control module dynamically calculates the current flow value. And the preset flow target and the real-time flow difference value are input into a PID controller to generate a tilting adjustment signal to drive an execution mechanism module to adjust the flow of the casting machine. The liquid level height and the flow are calculated through mechanical motion parameters, the problem that the sensor is in direct contact with liquid in the high-temperature and high-pressure environment and fails is solved, and stable operation in the severe environment is guaranteed; and adaptive PID control and a multi-parameter fusion model are used for cooperative work, so that the steady-state error is reduced, and the response speed is increased.

The invention provides a crystal growth device and a crystal growth method for separating crystals from melts, and solves the defect that polycrystals are easy to generate during crystal growth at present. The growth device comprises a heat preservation furnace, a heater, a crystal growth crucible, a lining crucible, a lifting mechanism, a ceramic lifting seat, pressing graphite, a heat conduction graphite ring and a heat preservation ring, the crystal growth crucible is coaxially arranged in the heat preservation furnace; the heater is coaxially arranged between the crystal growth crucible and the holding furnace; the lining crucible is coaxially arranged in the crystal growth crucible and comprises a crucible bottom plate, a melt transmission channel and a crucible main body which are coaxial and communicated from bottom to top; in order to reduce the influence of the melt on the crystal in the growth process, the crystal and the melt are physically separated, the growth device with the two crucibles is designed, and in consideration of the importance of stable crystal growth thermal field environment, heat transfer of the two crucibles is isolated through the heat preservation ring; the heat-conducting graphite is used for uniformizing the temperature of the center and the edge of the melt, and concave liquid surfaces are avoided.

The invention relates to a film covering process of a butyl rubber plug, which belongs to the technical field of butyl rubber plug preparation and is characterized in that during processing, in the same way as the prior art, a bonding surface of a film belt used for being bonded with a mixed rubber sheet needs to be activated, and then the bonding surface of the film belt is bonded with one side surface of an unvulcanized mixed rubber sheet; the film belt covers and is fixed on the mixing rubber sheet in an adhesion manner, and the key point is that in the covering and fixing process, the film belt is conveyed forwards in a manner of floating on a flowing liquid surface, and is attached and fixed with the mixing rubber sheet above the film belt in the conveying process, so that the film belt is prevented from being pulled by a conventional belt similar to a belt in belt transmission; and the film belt is prevented from being torn and damaged. The film laminating process can prevent the film belt from being torn due to mechanical traction and pulling as much as possible, and the processing process is convenient and reliable.

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 provides a water-gas interface gas collecting device and a monitoring method, and the collecting device comprises a floating part which is constructed to be annular and floats on a liquid surface; the framework extends upwards from the floating part; the membrane structure is arranged on the framework and is suitable for enclosing a flux box with a top opening with the framework part and the floating part; the zero gas supply unit is suitable for supplying zero gas to a water-gas interface positioned in the flux box, so that to-be-detected gas from the water-gas interface moves upwards; and the collection unit is arranged at the upper part of the flux box and is suitable for collecting mixed gas containing zero gas and gas to be detected.

The invention discloses an on-line prediction method for slab slag entrapment defects, which comprises the following steps: collecting process data in real time in a slab continuous casting production process, and obtaining submersed nozzle data and crystallizer data, thereby obtaining the maximum flow velocity of the liquid level in a crystallizer and the pulling heat per ton of steel at the corresponding moment; the slag entrapment critical threshold value is determined according to the occurrence frequency of the slab slag entrapment defect in historical production data, then the ratio of the maximum liquid level flow rate to the heat extraction amount per ton of steel is compared with the slag entrapment critical threshold value, and accordingly whether the slab has the slag entrapment defect or not is judged. According to the invention, real-time judgment and forecast of the slag entrapment fault of the crystallizer in field production can be realized, and smooth operation of a continuous casting process and guidance of treatment before rolling are facilitated.

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 provides a drilling fluid outlet flow anti-disturbance monitoring method and device, a medium and a program product, and the method comprises the steps: obtaining a liquid level echo signal through a millimeter-wave radar liquid level meter installed above a drilling fluid outlet buffer tank, and inhibiting an environment interference factor through time domain and frequency domain fusion adaptive filtering of dynamically adjusting a weight according to a signal-to-noise ratio; inputting the filtering signal into a BP neural network to obtain phase information influenced by the liquid level disturbance interference factor, and combining a physical information neural network to obtain a radar wave attenuation coefficient corresponding to the phase information; on the basis of a liquid level fluctuation and radar echo attenuation quantitative model, liquid level height variation is obtained by integrating phase information and radar wave attenuation coefficient inversion calculation, the current liquid level height is obtained by combining the liquid level height with radar ranging liquid level height, and the relative flow change of the drilling fluid in the buffer tank is judged. High-precision flow monitoring is achieved under the conditions of liquid level disturbance and environment disturbance, and well control safety and the intelligent level of drilling operation are improved.

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 pickled Chinese cabbage processing, in particular to a pickled Chinese cabbage soaking device which is characterized in that a gas cylinder is inserted into a limiting seat, the outlet end of the gas cylinder is communicated with the inlet end of a miniature air pump through a hose, the outlet end of the miniature air pump is communicated with a one-way pipe, and one end of the one-way pipe extends into a tank body and is communicated with a micropore circular ring pipe; the bottom end of the sealing cover is connected with a perforated pressing plate piece used for preventing pickled Chinese cabbages from stretching out of the liquid level. After the micro air pump is started, sterile air in the air bottle is extracted through the hose, the extracted sterile air is guided into the micropore circular ring pipe in a one-way mode through the one-way pipe, the sterile air in the micropore circular ring pipe is released upwards in a bubble mode from micropores, and a large number of fine bubbles continuously rise in saline water; the concentration layering phenomenon generated during standing soaking is effectively eliminated, salt ions in saline water are distributed more evenly, and therefore the problem that the local part is too salty or too light is avoided.

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 present application discloses a shell-breaking and stirring system and working method based on visual recognition, the system includes a target recognition module, a plurality of stirrers and a control module; the stirrers are arranged at equal intervals on the side of the tank body along the circumferential direction of the tank body, and the stirrers are suitable for swinging left and right and up and down; the target recognition module is used to identify and calibrate the crusted area on the liquid surface; the control module is electrically connected to the stirrer and the target recognition module, and the control module is suitable for controlling the stirrer to perform corresponding actions to complete the crushing of the crusted area according to the recognition results received from the target recognition module. The beneficial effects of the present application: the state of floating objects on the liquid surface can be accurately and immediately obtained by visual recognition, and then the floating objects can be crushed when they form crusts. Compared with the traditional continuous stirring method, the technical solution of the present application can effectively reduce the start-up time of the stirrer while completing the crust crushing, thereby reducing energy waste.

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 relates to an engine crankcase oil-gas separation control method and system, which is used for optimizing the oil-gas separation efficiency of an engine crankcase oil-gas separation unit. The method comprises the following steps: determining an opening control parameter Delta P of a gravity one-way valve according to the pressure difference between the air flow pressure P2 of an outer cavity of the oil-gas separation unit and the air flow pressure P1 of an inner cavity of the oil-gas separation unit; acquiring the liquid surface pressure P of a dynamic oil liquid surface height H in an ascending process when the oil-gas separation unit is running; when P is smaller than Delta P, the gravity one-way valve is controlled to be closed; when P is larger than Delta P, the gravity one-way valve is controlled to be opened; in the opened state of the gravity one-way valve, the oil is discharged to make the dynamic oil liquid surface height H drop, and the state switching of the gravity one-way valve makes the dynamic oil liquid surface height H maintain small-amplitude fluctuation in a set interval. The application has the beneficial effects that the oil-gas separation system selection efficiency and control precision can be improved, and the one-time success rate and overall reliability of system development can be improved.

The present invention relates to the field of liquid detection technology, specifically a continuous automatic liquid dispensing system and device thereof, comprising a display unit, a detection rod connected to the lower end of the display unit, a flange provided on the detection rod, two floats that can move with the liquid surface provided on the detection rod, the two floats can be divided into an upper float and a lower float according to their positions, a placement groove is provided on the top of the two floats, and the two placement grooves are circular grooves with the detection rod as the axis. The present invention detects whether there is a blockage in the gap between the corresponding float and the detection rod by checking whether the extrusion block 1 and the extrusion block 2 are separated for a long time, and then cooperates with the wire and the snap ring through a micro servo motor and a winding box. When the float is stuck, the micro servo motor drives the wire to be wound through the winding spring in the winding box, and then drives the float to move up and down through the snap ring. The blockage in the gap between the float and the detection rod is separated by the friction of the float movement to solve the problem.

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 application is a preparation method of in-situ synthesis of ODS multi-principal element alloy powder. The method uses in-situ oxidation in the thermal spraying process and selective oxidation of Al or Cr in the alloy powder to introduce nano-oxides, and realizes uniform distribution of the nano-oxides in the alloy powder by high-speed impact and spatter of the powder at the liquid surface in the spraying process. After the spraying is completed, the alloy powder is rapidly cooled in the cooling liquid and still maintains the spherical shape. The ODS alloy powder prepared by the application has the advantages of uniform distribution of oxide particles in the powder and high powdering efficiency, and the microstructure of the ODS alloy powder can be controlled by adjusting the composition ratio of the raw material powder and the spraying process.

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.