1148 results about "Air bubble" patented technology

The invention relates to the technical field of hemispherical harmonic oscillator assembly, in particular to a welding method and device for an assembled hemispherical harmonic oscillator, and the device comprises a vibration welding platform and a clamping assembly located above the vibration welding platform; the vibration welding platform is used for bearing the sensitive base and providing a thermal field and a vibration field needed by welding, and the clamping assembly is used for clamping the center shaft and sending the center shaft into a center hole of the base. A heating unit and a composite vibration ultrasonic transducer are arranged in the platform, and the platform is configured to apply high-frequency vibration formed by superposition of vertical longitudinal waves and horizontal torsional waves to the base. The high-frequency vibration thixotropic effect is used for reducing the viscosity of the molten solder, the ultrasonic cavitation effect is used for forcibly discharging bubbles at the bottom of the blind hole, and the sound radiation pressure generated by the vibration standing wave field is used for driving the center shaft to achieve friction-free self-centering in the hole. According to the device, the problems of air bolt pseudo soldering and rigid assembly clamping stagnation in the traditional process are solved, and the assembly coaxiality and the connection strength of the harmonic oscillator are remarkably improved.

A foam molding method includes: moving a screw backward to take air into a heating barrel through a nozzle part in a state in which a shut-off nozzle is opened, the shut-off nozzle that opens or closes the nozzle part for injecting the molten resin and is disposed on a heating barrel; closing the shut-off nozzle and moving the screw forward, to diffuse the air taken into the heating barrel, in the molten resin in the heating barrel; feeding the molten resin forward while dispersing the air as the air bubbles in the molten resin by moving the screw backward while rotating it in a state in which the shut-off nozzle is closed; and opening the shut-off nozzle, to inject the molten resin containing the dispersed air bubbles into the cavity.

The utility model discloses a desulfurization liquid foam tank negative pressure defoaming device which comprises a defoaming box and a vortex fan, one side of the bottom of the defoaming box is connected with a desulfurization regeneration tower through a liquid inlet pipe, and the other side of the bottom of the defoaming box is connected with a foam tank through a liquid discharge pipe. An air inlet of the vortex fan is connected with an air outlet hole in the top of the defoaming box through an air inlet pipe, an air outlet of the vortex fan is connected with a negative pressure tail gas pipeline through an air outlet pipe, and valves are arranged on the liquid discharge pipe, the air inlet pipe and the liquid inlet pipe. The defoaming box disclosed by the utility model is arranged between the desulfurization regeneration tower and the foam tank, bubbles at the upper part of foam liquid entering the defoaming box are broken by utilizing negative pressure and centrifugal force generated by the vortex fan, and the defoamed foam liquid enters the foam tank, so that the influence on the operation precision caused by a large amount of accumulated foams in the foam tank can be avoided, and the field operation environment is effectively improved.

The invention relates to an integrated active exhaust volume control device for CRRT, which belongs to the technical field of medical instruments and comprises a main mounting frame, and an on-line self-exhaust air bubble catcher, a continuous operation peristaltic pump, a mechanical volume follow-up compensation device, a module core controller and a piezoelectric ceramic micro compensator are integrated and fixed on the main mounting frame. The online self-discharging air bubble catcher actively removes bubbles in liquid, the peristaltic pump is continuously operated to achieve non-pulse continuous conveying of displacement liquid, the mechanical volume follow-up compensation device accurately regulates and controls waste liquid discharging, the module core controller receives signals in real time and coordinates actions of all components, and the piezoelectric ceramic micro compensator achieves fine adjustment of net dehydration. The module can eliminate bubble interference from the source, guarantee the continuity of CRRT treatment, improve the capacity management precision, simplify clinical operation, relieve the burden of medical staff and guarantee the hemodynamic stability of patients, and is suitable for CRRT treatment of critical patients.

The utility model provides a laminating device for membrane electrode packaging and a fuel cell production system, and belongs to the technical field of fuel cell manufacturing. The laminating device for membrane electrode packaging comprises a laminating assembly, a frame unwinding assembly and a driving assembly, the laminating assembly comprises a steel roller and a rubber roller which are oppositely distributed, and a gap for a membrane material to pass through is formed between the steel roller and the rubber roller; the frame unwinding assembly is located on the upstream of the steel roller and used for conveying the frame to the gap through the steel roller to be attached to the base material. The driving assembly is in driving connection with the laminating assembly, so that the steel roller and the rubber roller can be close to each other or far away from each other, and the laminating device for membrane electrode packaging can effectively solve the problems that the flatness is poor and bubbles exist after the frame and the membrane electrode are laminated.

This utility model relates to the field of film coating technology, specifically providing a film coating device. It aims to solve the problems of low yield or high production cost of existing film coating machines. The film coating device of this utility model includes a pressure roller assembly and a film application assembly. The pressure roller assembly includes a first pressure roller, through which the film can be wrapped. The film application assembly includes a first air knife located on the first side of the first pressure roller. The product to be packaged moves from the second side to the first side of the first pressure roller, the first pressure roller and the first air knife bring the film close to the product, and the first air knife adheres the film to the surface of the product. The blowing action of the air knife allows the film to adhere tightly to the surface of the product, and also allows for smooth film application even in uneven areas. The blowing action applies sufficient pressure to each area, preventing air bubbles. During the blowing process, the film gradually adheres to the product, preventing wrinkles. Furthermore, it improves the yield of high-quality products, reduces the production of defective products, and lowers production costs.

The utility model relates to a dripping pump capable of discharging gas foam, which belongs to the technical field of dripping pumps and comprises a pump body, a worm wheel blade is rotatably connected in the pump body, a bubble piercing component is arranged at the bottom end of the worm wheel blade and comprises a bubble piercing needle and a rotating shaft, and the rotating shaft is fixedly connected to the bottom end of the worm wheel blade. The bubble absorption device has the beneficial effects that the existence of bubbles is judged by detecting the light intensity change caused by the bubbles in the liquid, then information is transmitted to the controller, and the controller controls the foam absorption assembly to start, so that the foam on the liquid can be absorbed; according to the liquid metering device, the rotating shaft can be driven to rotate through rotation of the worm wheel blades, the multiple bubble stabbing needles can be driven to rotate, bubble stabbing treatment can be conducted on the bubbles in the liquid through the bubble stabbing needles, and generation of the bubbles in the conveying process is reduced.

The invention relates to the technical field of Teflon cloth and discloses cloth dipping equipment for processing Teflon high-temperature cloth, which mainly comprises a dipping box movable shaft I, a movable shaft II, a cloth guide roller, Teflon cloth and the like, movable grooves are formed in the front side wall and the rear side wall of an inner cavity of the dipping box, movable plates are slidably connected in the movable grooves, and the Teflon cloth is arranged in the movable grooves. A clamping groove is formed in the bottom face of the movable plate, and a sliding block is slidably clamped in the clamping groove. When the Teflon cloth is subjected to dipping processing, a movable shaft I and a movable shaft II are driven to rotate through movement of the Teflon cloth, a transmission belt drives a magnet to move, a connecting frame is made to move through adsorption of the magnet to a magnetic block I and a magnetic block II, and the Teflon cloth can be supported through movement of a movable roller, so that the Teflon cloth is subjected to dipping processing; and meanwhile, the movable roller can apply pressure to the Teflon cloth, so that bubbles in gaps of the Teflon cloth are extruded out, the dipping solution can quickly enter the gaps of the Teflon cloth, and the dipping effect is improved.

The application discloses high-performance light soil adopting fine coral sand and a preparation method thereof. The light soil comprises the following components in parts by weight: 100-400 parts of fine coral sand, 10-50 parts of cement, 20-100 parts of seawater and 0-5 parts of additive agent. The fine coral sand is micron-level powder obtained by crushing and grinding of coral sand, has a particle size distribution of 10-300 microns and a specific surface area of 400-600 m2 / kg. The cement content is calculated according to 10%-20% of the mass of the fine coral sand. The additive agent comprises a water reducing agent and a stabilizer. The preparation method comprises fine grinding of the coral sand, preparation and pretreatment of raw materials, dry material premixing and activation, air bubble group preparation, mixing and stirring, and pouring and curing. The application realizes synergistic enhancement of hydration reaction and micro-filling, effectively improves the mechanical properties and durability of the light soil, promotes the transformation of island reef engineering construction to green environmental protection and resource utilization, realizes resource utilization of the coral sand and provides a new way for reducing engineering cost.

The invention relates to an underground substation compressed air foam fire extinguishing system and fire extinguishing method, and the underground substation compressed air foam fire extinguishing system is characterized in that the underground substation compressed air foam fire extinguishing system comprises a fire monitoring unit, a fire extinguishing control system, a compressed air foam generating unit, a compressed air foam releasing unit and a fire extinguishing standby input unit, a fire early warning signal is monitored and sent to the fire extinguishing control system, the fire extinguishing control system processes the received fire early warning signal and then outputs a control signal to the compressed air foam generating unit, and the compressed air foam releasing unit sprays compressed air foam to extinguish fire. An interface of the fire extinguishing standby input unit is arranged outside the underground transformer substation, and fire extinguishing and cooling are carried out on the interior of the transformer chamber by utilizing the fire extinguishing foam release unit through external fire fighting equipment. The system is matched with an underground transformer substation for use, can provide high-performance compressed air foam for fire extinguishing, and is quick in response and high and reliable in fire extinguishing efficiency.

The invention relates to preparation of fermented milk, in particular to probiotic fermented milk and a preparation process thereof, and the process comprises the following steps: step 1, connecting the fermented probiotic fermented milk to a canning pipe through a pipeline; 2, the canning container is horizontally placed on a transfer belt, and a canning pipe is horizontally inserted into the canning container; thirdly, the conveying belt drives the canning container to move, and the two limiting rods limit and straighten the canning container, so that the canning container is changed from the horizontal state to the vertical state; fourthly, the canning pipe moves along with the movement of the canning container, and canning is completed; the filling process of the probiotic fermented milk can be stably completed, and bubbles are reduced.

This invention discloses an energy-saving pole centrifugal device, belonging to the field of pole processing technology. It includes a support frame, with a centrifugal mechanism at the top of the support frame. The centrifugal mechanism includes a centrifugal cylinder rotatably mounted at the top of the support frame. A third motor is fixedly mounted at the top of the support frame, and a gear is fixedly mounted on the output shaft of the third motor. A limit assembly is provided on the outside of the centrifugal cylinder, and a gear ring is fixedly mounted on the outside of the limit assembly, with the gear meshing with the gear ring. A flow guiding mechanism is provided near the top of the centrifugal cylinder on the support frame. This invention, through the synergistic effect of sliding spiral flow guiding ribs on the inner wall of the centrifugal cylinder and a spiral stirring plate on the outside of the hollow column, can both prevent the concrete aggregate from being sheared and damaged, and fully agitate the concrete, promptly expel internal air bubbles, break the stratification interface of sand, cement slurry, and water during centrifugation, reduce defects such as inner wall laitance, honeycomb, and holes, and significantly improve the pole forming quality and structural stability.

This application discloses a contact-type chip soldering process, relating to the field of chip soldering technology. The process includes the following steps: printing solder paste dots at the contacts within the soldering area of ​​a circuit board; heating the solder paste dots to melt them; cooling the molten solder paste dots on the circuit board to form solder dots at the contacts; printing a solder paste layer at the contacts within the solder paste layer; attaching a chip to the soldering area of ​​the circuit board, such that the chip's contacts are in contact with the solder paste layer; heating the solder paste layer and solder dots to melt them; cooling the soldering area of ​​the circuit board to solidify the molten solder paste layer and solder dots, forming solder joints, and soldering the chip onto the circuit board. This application effectively reduces air bubbles generated within the solder joints and improves the quality of the solder joints.

A method of manufacturing an article at least partially made of cellulose fibers comprises inserting a cellulose pulp comprising cellulose fibers and water into a mixing cavity; applying a high shear mixing action to the cellulose pulp using a high-shear mixer, such that a foam blend comprising cellulose fibers, water and air bubbles is created; inserting the foam blend into a mold cavity; and molding the article by heating the foam blend contained within the mold cavity.

The utility model belongs to the technical field of seawater desalination engineering, and particularly discloses a novel energy dissipation drain tank which comprises a drain chamber, a water inlet pipeline, a middle weir and a drain pipeline, the middle weir divides the drainage chamber into a water inlet section and a water outlet section, and two ends of the middle weir are provided with vacuum breaking side walls; the water inlet section can be selectively provided with a flow distribution column according to the water flow characteristic of inlet water; the water outlet section comprises an L-shaped baffle plate, a flow guide sill and a final-stage flow guide plate; the baffle plate is arranged at the downstream of the middle weir, and the bottom of the baffle plate is supported by a plurality of columns; and the flow guide sill is arranged at the downstream of the baffle plate. The energy dissipation drain tank has the advantages that the energy dissipation drain tank effectively consumes and disperses the energy of water flow by optimizing the structural design, and effectively solves the problems of larger water flow impact, inconvenience in pollutant cleaning and high cleaning cost of the drain tank by utilizing air bubbles carried by air in the flowing process, thereby ensuring the safe and stable operation of the drain tank.

This invention relates to the field of cell detection equipment technology, specifically to a detection device for bladder cancer metabolomics biomarkers. The device includes an ELISA reader, a moving stage, and well plates housed within it. It also includes a defoamer mounted on the outer wall of the ELISA reader. The defoamer comprises a fixing part, a pair of transmission parts, and a striking part and an air blowing part disposed within the fixing part. This bladder cancer metabolomics biomarker detection device, through a mechanical linkage design between the moving stage and the defoamer, uses a gear-driven toothed plate to move a dial-driven bending plate up and down, causing a striking rod to strike the well plate. Combined with synchronous airflow from the air blowing part, a protrusion pushes a piston plate within a second groove, directing airflow from the nozzle. This achieves automated removal of air bubbles from the wells before ELISA reader detection. The dual defoaming effect of striking vibration and airflow impact eliminates optical interference, ensuring the accuracy of the detection values ​​and simplifying the detection process.

The invention belongs to the technical field of forklift hydraulic diagnosis optimization, and provides a fault self-diagnosis and optimization method for a forklift hydraulic system, which is used for monitoring the air pressure of an oil suction pipeline in the forklift hydraulic system, judging whether the oil suction pipeline leaks air or not, directly determining whether a fault occurs at the oil suction pipeline or not, and improving the working efficiency of the forklift hydraulic system. The content of bubbles in oil can be reduced, the pressure and flow transmission efficiency of a hydraulic system can be improved, when it is judged that an oil suction pipeline leaks air, under the scene that the forklift steers at a small angle continuously between narrow goods shelves, the steering lagging duration and the bubble compression duration of each time of small-angle steering are obtained respectively, and the steering lagging duration and the bubble compression duration of each time of small-angle steering are obtained. The correlation degree between the steering lag time and the oil bubble compression time is evaluated, the influence mechanism of air leakage on a steering system is known more deeply, different types of faults can be distinguished, the main reason of steering lag caused by oil bubble compression can be quickly positioned, and the method and the device can be used for adjusting parameters such as the sending opportunity and the frequency of a steering instruction in the later period. And data support is provided.

The expansion valve comprises a valve body assembly, a switch piece and a silencing assembly, the valve body assembly is provided with a valve port, a first side and a second side, and the valve port is located between the first side and the second side and communicates with the first side and the second side; the switch piece and the noise reduction assembly are arranged on the first side and / or the second side, the noise reduction assembly is connected to the valve body assembly, a channel is formed between the noise reduction assembly and the valve body assembly, the noise reduction assembly is provided with a porous noise reduction part, the switch piece is movably located between the noise reduction assembly and the valve port, and a first flow channel is formed between the switch piece and the valve body assembly; when the flowing direction of the working medium is from the valve port to the silencing assembly, the porous silencing part is closed by the switch piece; and when the flowing direction of the working medium is from the silencing assembly to the valve port, the porous silencing part is opened. According to the expansion valve, the problems that a refrigerant flowing through the valve port is prone to cavitation to generate noise, and bubbles are prone to being generated in the refrigerant before flowing through the valve port to generate noise can be solved.

1. Name of the product in this design: Intelligent Vacuum Machine. 2. Application of this design: This design is used in equipment for removing air bubbles. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. Other situations requiring explanation: Other explanation: Area A in the figure is made of transparent material.

The invention provides a preparation method of a graphene film with high thermal conductivity in a Z-axis direction, the graphene film with high thermal conductivity in the Z-axis direction and application of the graphene film, and relates to the technical field of graphene. The preparation method comprises the following steps: carrying out air crushing treatment on low-solid-content graphene oxide slurry to enable micron-sized air bubbles to be attached to the surface of a sheet layer of graphene oxide, so as to obtain low-solid-content gas-dissolved graphene oxide slurry; preparing the low-solid-content dissolved gas graphene oxide slurry into high-solid-content dissolved gas graphene oxide slurry; carrying out homogenizing and stripping treatment on the high-solid-content gas-dissolved graphene oxide slurry to obtain homogenized graphene oxide slurry; the homogenized graphene oxide slurry is subjected to coating, drying and heat treatment in sequence, and the graphene film with the high thermal conductivity in the Z-axis direction is obtained. According to the preparation method disclosed by the invention, the tiling order of the graphene sheet layers in the X-Y direction is broken, and the cardinal number of the graphene sheet layers arranged in the Z-axis direction is increased, so that the heat-conducting property in the Z-axis direction is improved.

This application relates to a continuous feeding device for pressing antistatic calcium sulfate-based raised floors, belonging to the technical field of antistatic calcium sulfate-based raised floor production. It includes a storage tank with a top cover and a feed inlet. An adjustable vibrating mechanism is installed inside the storage tank, and a screw discharge mechanism is installed at the bottom. The adjustable vibrating mechanism includes a suspension rod, a winch, and multiple vibrating rods. The suspension rod is movably mounted inside the storage tank, and the winch is mounted on the top cover. The winch drives the suspension rod to rise and fall, and the multiple vibrating rods are evenly distributed at the bottom end of the suspension rod. This application, by incorporating an adjustable vibrating mechanism, uses vibrating rods to remove air bubbles from the raw material, and then the screw discharge mechanism evenly feeds the raw material, ensuring uniform output and facilitating subsequent pressing and molding.

The invention discloses a compressed air foam pipe network conveying experiment system which is characterized in that compressed air foam is generated and supplied through a supply unit, the supply unit is communicated with a pipe network conveying unit, and the pipe network conveying unit comprises at least four conveying pipelines; the at least four conveying pipelines at least comprise a horizontal state, a vertical state, an inclined climbing state and an inclined descending state so as to simulate a multi-working-condition state in the actual conveying process, and compressed air foam conveyed in different states or in different states in a combined mode is collected through the liquid collecting unit so as to obtain the compressed air foam under different working conditions. Then the microscopic state of the collected compressed air foam is detected through a microscopic characteristic testing unit, the drainage rate of the collected compressed air foam is detected through a drainage characteristic testing unit, and analysis is conducted through a control unit to obtain parameter data of the compressed air foam conveyed under different working conditions; the theoretical basis of the conveying characteristic of the compressed air foam in a pipe network is perfected, and the theoretical basis is provided for follow-up fire fighting.

The preparation method comprises the following steps: firstly, mixing a silicon source, ethanol, deionized water and a catalyst according to a certain proportion to prepare a silicon dioxide glue solution, then immersing one or more layers of glass fiber base materials into the prepared silicon dioxide glue solution, carrying out circulating reflux, pressing, aging the gel, and carrying out vacuum drying to obtain the glass fiber aerogel heat insulation felt. And after modification, drying to obtain the glass fiber aerogel heat insulation felt. The glue solution in the tank body is circulated by using the pump machine, so that the glass fiber base material is immersed in the glue solution, meanwhile, bubbles enriched on the outer layer of the base material are expelled by using the pressing block or the rolling shaft, and the finally obtained glass fiber aerogel heat insulation felt product is free of glue shortage in appearance. The technological process is finely designed, the adjustable characteristic suitable for preparation of various reinforced fibers is shown, meanwhile, the characteristics of being low in technological production cost and easy to operate are achieved, and the performance of all regions of the produced aerogel felt can be promoted to be unified, so that the performance is remarkably improved.

The present invention detects an abnormality in a flow path part of an inkjet head at an early stage. This inkjet recording device comprises: a pressure control part that controls the operation of a pressure adjustment part such that the pressure inside an inlet is gradually reduced while the difference between the pressure inside the inlet and the pressure inside an outlet is maintained constant; and a pressure determination part that determines whether or not an air bubble entrainment pressure, which is the pressure inside the inlet when the nozzle of an inkjet head starts to entrain air bubbles due to a meniscus break, is within the normal air bubble entrainment pressure range.

Some embodiments of the present application provide an electrode tab taping device and method thereof, and a battery device production system. The taping assembly of the electrode tab taping device includes a suction plate, a driver, and a scraping structure. The scraping structure is movably connected to the suction plate along a third direction. The scraping structure is in driving connection with the driver. The suction plate is used to adsorb a tape and attach the tape to a first electrode tab and a second electrode tab. The tape covers a gap between the first electrode tab and the second electrode tab. After the suction plate attaches the tape to the first electrode tab and the second electrode tab, the scraping structure can move along the third direction and scrape the tape from a side of the tape close to the suction plate. The scraping structure can sequentially scrape both ends of the tape along the third direction. This not only allows the tape to be scraped flat, but also squeezes out air bubbles between the tape and the first electrode tab or the second electrode tab. This reduces the risk of the tape wrinkling and the risk of the electrode tab wrinkling, thereby improving the reliability of the battery device.

The utility model relates to the field of resin wire production, and discloses a resin wire infiltration device and cable production equipment.The resin wire infiltration device comprises a shell, a plurality of first rotating shafts, a plurality of second rotating shafts and an outer cover, the shell is provided with a liquid containing groove, the first rotating shafts are rotationally installed in the liquid containing groove, and the second rotating shafts are rotationally installed in the liquid containing groove; the first rotating shafts and the second rotating shafts are alternately arranged in the liquid containing groove, the axes of the second rotating shafts are located in the first direction of the axes of the two adjacent first rotating shafts, and the outer cover is located in the second direction of the shell and used for covering the shell. The first rotating shafts and the second rotating shafts which are different in height are arranged in the liquid containing groove, so that the passing path of the wire in the liquid containing groove is increased, the staying time of the wire in the liquid containing groove is prolonged, the wire is wetted more uniformly, and the defects such as bubbles or gaps are reduced.

A blower includes a rotor blade body rotatable about a central axis extending in an axial direction, a motor that rotates the rotor blade body, a housing including a ventilation passage and surrounding the rotor blade body and the motor, and a noise reducing member located in the ventilation passage. The noise reducing member is an impermeable porous member which includes a plurality of air bubbles opened to the ventilation passage on the surface side of the noise reducing member and in which a flow of gas in the intersecting direction of the surface of the noise reducing member and the plurality of air bubbles does not permeate.

This utility model relates to the field of airtightness testing technology and discloses an integrated airtightness testing machine for gas cylinder filling, including a chamber. In daily use, water is first injected into the chamber. Then, the handle is held to lift the base, top plate, and connecting frame and insert them into the chamber and the hollow partition. When air bubbles are generated, the movable ruler can be moved. After the movable ruler moves to the air bubble, the position of the air outlet can be finally determined on the marked hole and the bolt can be installed. After determining the position of the air outlet, the connecting frame and the bottle can be taken out and placed on the storage plate. The position of the air outlet is determined according to the position of the movable ruler and the angle value displayed by the angle ruler. There is no need to re-mark the holes. When the connecting frame and the bottle are taken out, the sponge plate on the mounting frame will wipe the outer wall of the connecting frame and the bottle when they are touched, which facilitates the subsequent testing of the bottle without wiping the water on the outside of the bottle.

This invention relates to a method, apparatus, and electronic device for precise flow control of reagents in a reaction tank. The method includes: acquiring the reagent flow rate of a peristaltic pump under different control ratios; calibrating and fitting the control ratio and reagent flow rate to obtain a flow control fitting formula; constructing a flow closed-loop controller, using real-time reagent flow rate as input, a target control ratio as output, and the total reagent extraction volume as the target, for closed-loop control; dividing the control process into time intervals, setting time weights for each time interval, adjusting the input of the flow closed-loop controller according to the time weights, outputting the target control ratio, and controlling the peristaltic pump according to the target control ratio to obtain the required reagent intake for the reaction tank. In summary, this invention addresses the impact of different reagent flow rates on the accuracy of flow sensor measurements by calibrating and fitting the control ratio and reagent flow rate; and eliminates the intake error caused by air bubbles by setting time weights, thus achieving intake control that meets experimental accuracy requirements.

The application discloses an atomizer and an aerosol generating device. The atomizer comprises a shell, an atomizing seat and an atomizing core. The atomizer has a liquid storage bin. The shell is provided with an inner cavity. The atomizing seat is arranged in the inner cavity. The atomizing seat is provided with a liquid supply channel and a ventilation passage. One end of the ventilation passage is in communication with the external atmosphere, and the other end is in communication with the liquid supply channel. The liquid supply channel comprises a liquid guide passage, a first flow path and a second flow path. The liquid storage bin is in communication with the liquid guide passage. The capacity of the first flow path is greater than that of the second flow path. The atomizing core is arranged in the atomizing seat. The atomizing core and the liquid guide passage are in liquid communication. The atomizer of the application is beneficial to improve the problem of air bubbles in the liquid supply channel, thereby improving the smoking taste of the aerosol.