1727 results about "Liquid surfaces" patented technology

A moving apparatus used in liquid, a cleaning device, and a cleaning device control method are disclosed. The moving apparatus used in liquid includes a forward portion, a rearward portion, and a mode switching member. The mode switching member is configured to perform a position-and-posture switching of the moving apparatus below or above a liquid surface. When the moving apparatus is located below the liquid surface, the moving apparatus entirely submerges below the liquid surface. When the moving apparatus is located above or on the liquid surface, the moving apparatus is at least partially exposed above the liquid surface. Through the above method, the present disclosure may realize the cleaning of a liquid environment in an all-round way.

The present disclosure provides a cleaning device. The cleaning device includes a cleaning device body, a drive mechanism, a filtering mechanism, a liquid inlet portion, a liquid outlet portion, and a mode switching member. The drive mechanism and the filtering mechanism are disposed on the cleaning device body. The liquid inlet portion includes at least a first water inlet. The first water inlet is provided on the cleaning device body. The liquid outlet portion includes at least a first water outlet. The first water outlet is provided on the cleaning device body. The first water inlet, the filtering mechanism, the drive mechanism, and the first water outlet sequentially communicate to form a first water path. The mode switching member is configured for the cleaning device to be switched between a position on a liquid surface and a position under the liquid surface.

The invention relates to a thickener based on an intelligent control mixed feeding apparatus. The thickener comprises a thickening tank and a feeding assembly for adding a flocculant into the thickening tank. A rotating shaft is arranged in the thickening tank. The surface of the rotating shaft is provided with grease scrapers attached to the liquid surface of a slurry, and the grease scrapers can rotate along with the rotating shaft to scrape off grease on the liquid surface. In the present invention, stirring paddles are driven to rotate by means of the rotating shaft, so as to stir the slurry, so as to generate bubbles in the slurry, allowing grease particles to be attached to the bubbles and rise to the liquid surface. A sliding piece is driven to rotate by means of the rotating shaft, so that the scrapers are driven to rotate, and together with an inclined surface, the grease rising to the liquid surface is scraped off, so that the grease can enter a cavity along the inclined surface and a grease inlet to be collected, so that the function of removing grease is achieved, and the thickening effect is improved.

Immersion cooling systems are disclosed. An example immersion cooling system includes an immersion tank including a cooling fluid and a reservoir to contain a recirculated portion of the cooling fluid. The reservoir is separated from the immersion tank by a height to generate a liquid surface height variance between the cooling fluid in the immersion tank and the cooling fluid in the reservoir. A supply conduit is to fluidly couple the immersion tank and the reservoir. The cooling fluid to be provided from the reservoir to the immersion tank via gravity.

The invention provides a method for intelligently judging a standing layering state of a chemical experiment, which is applied to the technical field of chemical experiments and comprises the following steps: collecting experiment video stream data in real time; using a Yolov8 target detection algorithm to accurately identify a liquid layering area, and judging whether a layering phenomenon occurs or not; if the layering phenomenon occurs, judging whether an emulsion layer exists or not by adopting a Yolo-cls image classification technology; if the emulsion layer does not exist, accurately extracting an ROI (Region of Interest) of liquid level layering according to a Yolov8 target detection result; utilizing a DINOv2 model to record the depth semantic features of the liquid level layering area at different moments in real time; acquiring a similarity difference value at different moments by using a similarity algorithm; judging whether the difference value is within a preset threshold range or not; if yes, layering of the liquid level is completed; the prior information of the liquid level position needs to be reflected and known through equipment, and the liquid level can only be placed at a fixed position every time and cannot be judged in real time; in the prior art, the phenomenon that an emulsion layer appears in liquid is not considered, and real-time detection in the whole experiment process cannot be realized based on the liquid standing completion state.

The invention discloses a device for slowing down sloshing of a liquid tank. The device comprises the liquid tank, a linear guide rail sliding mechanism, a combined swash plate device and an automatic springback swash plate device. According to the device for slowing down the sloshing of the liquid tank, a double-sloshing-reduction method is adopted, firstly, the amplitude of the sloshing wave height of the free liquid surface and the kinetic energy of liquid sloshing are weakened in the middle of the liquid tank by means of the automatic rebound swash plate device; liquid sloshing energy is dissipated by means of holes of the combined swash plate device for liquid to enter and exit from the bulkhead, direct action of free surface movement of the liquid on the side wall of the liquid tank is hindered, impact load of liquid sloshing on the bulkhead is reduced, and the phenomena of top rushing and jet flow caused by climbing along the bulkhead are inhibited. Meanwhile, the position of the combined oscillation suppression plate device can be adjusted by means of the linear guide rail sliding mechanism, the energy of liquid oscillation can be dissipated to the maximum extent, meanwhile, the inherent frequency of the liquid tank is changed, resonance can be effectively avoided, and therefore the wave absorption and stabilization effects of the oscillation suppression device can be better exerted.

The invention relates to a preparation method of a'microstructure-liquid-like surface 'underwater drag-reduction, noise-reduction and antifouling multifunctional composite coating, and belongs to the field of underwater equipment. The multifunctional composite coating provided by the invention comprises an anti-drag microstructure arranged on the surface of a substrate and a liquid-like surface arranged on the surface of the anti-drag microstructure, and the liquid-like surface retains the original morphology of the anti-drag microstructure. According to the micro-structure, the distance between the wall face and a turbulent vortex can be increased, the frequency and strength of a flow vortex pair can be restrained, and resistance reduction is achieved; and on the liquid-like surface, resistance reduction can be achieved by enabling fluid to generate wall face slippage and reducing the speed gradient of the fluid on the boundary. The two mechanisms of action are different but do not interfere with each other, and a better drag reduction effect can be achieved through the synergistic effect. Meanwhile, the composite coating can achieve the noise reduction effect by reducing the turbulence intensity of the wall face. In addition, the liquid-like surface can resist adhesion of marine organisms, the integrity of the microstructure is guaranteed, and therefore the long-term drag reduction effect is achieved.

The invention relates to the technical field of defoaming stirring, and discloses a defoaming stirring barrel for flotation and a using method thereof.The defoaming stirring barrel comprises a round barrel, a mounting frame is fixedly mounted at the top of the round barrel, a driving motor is fixedly mounted at the top of the mounting frame, a rotating shaft is rotatably mounted on the mounting frame, and the rotating shaft penetrates through the mounting frame; the bottom end of the rotating shaft is rotatably connected with the inner wall of the bottom of the barrel, an output shaft of the driving motor is fixedly connected with the rotating shaft, the defoaming device further comprises a defoaming mechanism, the defoaming mechanism comprises a rectangular groove formed in the rotating shaft, and the rectangular groove is slidably sleeved with a circular sliding plate. In the rotating process of ascending and descending of the defoaming teeth, bubbles on the slurry surface and bubbles in vortexes including slurry can be effectively eliminated, the foam eliminating effect is improved, and the situation that due to the fact that the bubbles are concentrated at the vortexes and on the liquid surface, the bubbles overflow too much and concentrate is discharged out of a barrel, waste is caused, and the concentrate sinks again is avoided.

The present invention relates to a rebound composite electromagnetic energy dissipation device for reducing sloshing with a liquid-filled ball for a large liquefied natural gas (LNG) storage tank. When the liquid surface sloshes around, the gas spring is pulled by the steel strand to produce vertical displacement and provide a restoring force, and the vertical displacement of the gas spring drives the fan blades on the sleeves of the ball screws at the bottom to rotate in the damping fluid, consuming energy. The present invention uses hydraulic transmission instead of mechanical transmission of traditional piston motion, and the horizontal pistons produce horizontal displacement in the case of pressure unbalance, thus increasing the flexibility of horizontal piston motion; magnets are arranged in the horizontal slideways and the horizontal pistons to intensify the motion of the horizontal pistons and the relative motion between the horizontal pistons and the interior.

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.

A leakage-proof wearable breast pump includes a milk bottle, a front cover, and a negative pressure chamber, the front cover and the negative pressure chamber are both arranged above the milk bottle and a connecting chamber is provided therebetween; the connecting chamber is provided above the bottle mouth of the milk bottle, a buffer chamber is provided between the milk bottle and the connecting chamber, and the buffer chamber is communicated with the milk bottle and the connecting chamber respectively. The user wears the breast pump to move, the liquid surface in the milk bottle will shake, thereby overflowing the bottle mouth or the vent hole. The buffer chamber can collect the milk overflowing and reflow it, thereby preventing leakage.

Various examples, systems, and methods relate to section transport and slide management of a robotic microtomy system. A system can include a tissue block holder holding a tissue block, a blade having a blade edge submerged in liquid and configured to cut a section of the tissue block, a section handling assembly including a member, and an actuator configured to cause the member of the section handling assembly to (i) move through the liquid underneath the section floating on a surface of the liquid and (ii) separate the section from the blade edge.

The invention relates to the technical field of colla corii asini decocting, and discloses an automatic colla corii asini decocting device which comprises a decocting pot body, a mounting frame is fixed to the decocting pot body, a first servo motor is fixed to the mounting frame, the output end of the first servo motor is connected with a rotating shaft, the rotating shaft is connected with a stirring rod, and the stirring rod is connected with a motor. A rotating shaft is fixed on the mounting frame, a material collecting box is arranged on the circumference of the rotating shaft, an air extracting pump communicated with the material collecting box is fixed on the mounting frame, a defoaming mechanism is fixed at the bottom of the material collecting box, and the defoaming mechanism removes floating foam above the liquid level through air suction; according to the technical scheme, when the rotating shaft drives the stirring rods to stir liquid, the defoaming mechanism can be driven to rotate together, so that the defoaming mechanism can firstly collect scum on the surface of the liquid, and after collection, air suction is performed through the air suction pump, so that the defoaming mechanism generates negative pressure to suck out the scum in the material receiving groove, and the scum removal work is facilitated.

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 provides equipment for extracting aluminum and calcium from solid waste and a method for recovering valuable components. The solid waste recovery device comprises a bottom plate, a pedestal, an extraction tank, a treatment tank and an extraction mechanism, the pedestal is installed on the upper surface of the bottom plate, the outer wall of the extraction tank is installed on the inner wall of the pedestal, a water tank is installed on the upper surface of the bottom plate and located on one side of the pedestal, and the treatment tank is fixedly arranged on the upper surface of the water tank; according to the scheme, through system integration of hydrothermal acid leaching, multi-stage solid-liquid separation and leachate refining technologies, deep extraction and efficient utilization of valuable elements such as fluorine, sodium and aluminum are achieved, the resource recovery rate is remarkably increased, the high-temperature energy consumption mode of traditional pyrogenic process treatment is broken through, the energy consumption is reduced, and the energy consumption is reduced. And the convex plate continuously rotates to control the guide wheel to enable the lifting rod to do reciprocating lifting motion in the extraction tank, so that the liquid level vortex phenomenon caused by traditional rotation can be eliminated, and the top liquid level of the extraction tank is more stable.

The invention relates to the technical field of self-sucking pumps, in particular to an efficient vacuum energy-saving self-sucking pump which comprises a base, a first pump cavity, a motor, a rain baffle, a first impeller, a compensation assembly and a drainage assembly, the first pump cavity, the motor and the rain baffle are sequentially installed at the upper end of the base, and the first impeller is installed at the axis position in the first pump cavity; the drainage assembly is installed at the lower end of the first impeller, and the two compensation assemblies are installed in the drainage assembly. After the drainage assembly is started, the drainage assembly is used for guiding the liquid level to overflow the first impeller and removing large-particle solids in fluid, and the compensation assembly drives the first impeller to move downwards to reduce the gap when detecting that the gap between the first impeller and the inner wall of the first pump cavity is enlarged. The tip end of the blade is easily and continuously washed by solid particles, so that the flow and lift of the core pump are reduced, and the efficiency is obviously reduced.

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 present invention discloses a method for obtaining the reflection coefficient of a floating breakwater, and belongs to the field of marine engineering technology. The present invention constructs a numerical simulation water tank, adopts a mass source wave generation method to generate waves, the wave height is H, and the period is T; obtains the spatial distribution curve of the free liquid surface height of the synthetic reflection wave; and calculates the wave height H of the synthetic reflection wave according to the spatial distribution curve of the free liquid surface height of the synthetic reflection wave. 合 ; Through the formula H 反 =#imgabs0#get H 反 The value of, where a=H 合 / 2, the radian value corresponding to the phase angle A is equal to the phase difference Φ / 2, and the phase difference Φ is obtained by formula 1. Without the use of measuring instruments such as wave height meters and Doppler current meters, the reflection coefficient of the floating embankment can be obtained by vector superposition analysis using the spatial distribution data of the free liquid surface, avoiding the previous method of extracting data through measuring instruments and solving with the help of complex formulas.

The invention discloses a separated interface photo-thermal catalytic hydrogen production reactor which comprises a liquid storage container, a conveying conduit and a reactor. The liquid storage container is used for accommodating a reaction solution; one end of the conveying conduit is arranged below the liquid level of the reaction solution; the reactor comprises a shell and a porous material arranged in the shell, a thin-layer space is formed by the porous material and the inner wall of the shell, and the thin-layer space is filled with a reaction solution conveyed by the conveying guide pipe to form a thin liquid film; capillary force provided by the porous material is used for sucking the reaction solution in the thin-layer space to the surface of the porous material to carry out photo-thermal catalytic hydrogen production reaction, and the reaction solution in the liquid storage container is supplemented into the thin-layer space through the conveying guide pipe. The reactor separates and decouples a light source and a water source, and is better in space adaptability. The reaction solution is separated from the bulk phase solution, the reaction interface temperature is higher, and the controllability is better. And the photo-thermal catalytic reaction area is not limited by the free liquid surface area of the solution and can be freely expanded.

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.

A reaction system includes a vessel having a gas inlet and a gas outlet, a liquid within the vessel, a solid phase and a gas phase present within the vessel, and at least one liquid separator disposed within the vessel. The liquid has an upper liquid surface within the vessel, and the liquid separator is configured to remove at least a portion of liquid droplets generated based on the gas phase and the solid phase passing through the liquid.

The invention relates to an efficient separation and extraction device for extracting rock asphalt from oil sand. The efficient separation and extraction device comprises a flotation tank, and an inflation stirring mechanism is arranged at the bottom end in the flotation tank; a foam tank is arranged in the center of the upper end of the flotation tank; a lifting defoaming device is arranged at the upper end of the foam tank; after the lifting defoaming device descends, the upper end of the foam tank is closed, and foam in the foam tank is subjected to all-directional scouring defoaming; a grating plate is arranged at the upper end of the liquid level in the flotation tank; wave blowing devices are arranged in the middles of two sides of the flotation tank; scraping mechanisms are respectively arranged at the upper end of the flotation tank and above the two grating plates; the scraping mechanism comprises a scraping plate, a sliding rail, a sliding block and a reciprocating driving assembly, the sliding rail is transversely arranged on the inner wall of the flotation tank, the scraping plate is arranged on the sliding block, and the sliding block is matched with the sliding rail to be horizontally arranged on the inner walls of the two ends of the flotation tank in a sliding mode and is driven by the reciprocating driving assembly. The scraping efficiency is improved, and the foam material containing asphalt particles can be quickly and efficiently separated and recycled.

The utility model discloses an adhesive tape cooling device which comprises a cooling water tank provided with a first water cavity and a second water cavity, the second water cavity is located at the tail end of the first water cavity, the second water cavity and the first water cavity are communicated through water through holes, the water through holes are small holes, and the multiple water through holes are horizontally arranged; the guide mechanism comprises a first guide roller, first supports are arranged at the two ends of the first guide roller, and the first supports are rotationally connected with the cooling water tank; the water circulation system is provided with a water outlet pipe and a water return pipe, the water outlet pipe is connected with the front end of the first water cavity, and the water return pipe is connected with the second water cavity. The first supports are arranged at the two ends of the first guide roller and rotationally connected with the cooling water tank, when the adhesive tape is pulled, the first supports drive the first guide roller to rotate, the first guide roller rotates to the position above the liquid level of the first water cavity, an operator can conveniently immerse the adhesive tape into water and pull the adhesive tape at the moment, the structure is simple, and operation is convenient. Operation is simple, and working efficiency is improved.

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 invention relates to the technical field of coal mine flotation, in particular to a coal mine flotation device which comprises a case, a flotation column, a flotation motor, a foam scraping plate, a scraper motor and a rotor, flotation machines are various in structural form, the most commonly used flotation machines are mechanical stirring type flotation machines, and the flotation machines are used for stirring ore pulp and inflating the ore pulp. The liquid level above the ore pulp can fluctuate when the ore pulp is conveyed, foam on the surface of the ore pulp is scraped out in a scraper mode, in the unstable contact process formed by the fluctuating liquid level and the scraper, the adhesiveness of the foam is affected, discharging is not facilitated, the ore dressing efficiency is reduced, and scattered and splashed foam is prone to being attached to the rotating and fixing portion of the scraper, so that the ore dressing efficiency is improved. When additional pollution of equipment is caused, the probability of poor heat dissipation and blockage of a scraper rotating bearing part is increased, and long-acting and stable operation of the flotation machine is influenced.

The invention discloses a drilling detection system applied to a rotary drilling rig, and relates to the technical field of rotary drilling rigs, the drilling detection system comprises water pipes and a supporting mechanism, the water pipes are arranged in pairs and are transparent water pipes, the two water pipes are symmetrically arranged about the axis of a sleeve, and the two water pipes are embedded into a channel which is formed in advance in a penetrating mode in the axial direction of the wall of the sleeve; the end, extending into the pipe wall of the sleeve, of the water pipe is filled with a balancing weight and arranged in a sealed mode, the supporting mechanism is arranged outside the pile position and used for guiding the water pipe, the top of the water pipe is located above the sleeve, and the supporting mechanism is detachably connected with the water pipe. Liquid is injected into the tops of the water pipes, the surface of the liquid is always higher than the upper end face of the uppermost sleeve, and the liquid level difference of the two water pipes is observed. The rotary drilling device has the effect of improving the working efficiency of rotary drilling.

The invention provides a liquid storage component and an electronic atomization device, and the liquid storage component comprises a first housing assembly which is provided with a first liquid storage cavity for storing a first liquid matrix; an atomization assembly; the second shell assembly is independent of the first shell assembly, and a second liquid storage cavity used for storing a second liquid matrix is formed in the second shell assembly; the first shell assembly is configured to be capable of being connected with the second shell assembly, a first channel and a second channel can be established between the first shell assembly and the second shell assembly at the same time, and the first channel enables a liquid matrix part below the liquid level of the first liquid storage cavity to be communicated with a liquid matrix part below the liquid level of the second liquid storage cavity. And the second channel enables the air part on the liquid surface of the first liquid storage cavity to be communicated with the air part on the liquid surface of the second liquid storage cavity. According to the liquid storage component and the electronic atomization device, through the first liquid storage cavity and the second liquid storage cavity which are communicated with each other, on one hand, the capacity of the liquid matrix is increased, on the other hand, the use cost of a user is reduced, and the use experience of the user 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 an aviation fuel oil sampling method, and discloses an aviation fuel oil storage tank sampling method which is used for sampling an aviation fuel oil storage tank based on sampling equipment with air compression equipment. The method comprises the following steps: firstly, determining information of oil storage tanks subjected to sampling monitoring, and sampling at a plurality of different liquid levels below the liquid level in the oil storage tank at the top of each determined oil storage tank through a telescopic sampling device under negative pressure; then determining a sampling plan, regularly carrying out multi-layer mixed sampling on each oil storage tank according to the sampling plan, and mixing oil sampled each time in sampling equipment according to each liquid level in an equal proportion during mixed sampling; the collector is carried by an operator, so that the mixed and sampled oil is stored at each oil storage tank completing single sampling through the externally mounted collector; and after the collector is taken down and sampling is completed, nitrogen is introduced in the direction from the sampling equipment to the oil storage tank, and the oil detained in the sampling equipment is sent back to the oil storage tank. The method is simple, practical and low in cost.