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25results about How to "Reduce overheating" patented technology

Overheat controlled thermal storage

PendingCN121876607AReduce overheatingreduce flowCompressorMechanical apparatusWorking fluidPhysics
The invention relates to overheat controlled thermal storage. A vapor compression system includes a compressor, a condenser, an expansion device, and an evaporator fluidly connected to form a closed fluid circuit having a working fluid circulating therethrough. The thermal storage device includes a storage material, and the thermal storage device is thermally coupled to the closed fluid circuit downstream of the expansion device with respect to the flow of the working fluid. The vapor compression system is controllable such that the heat storage device is operable to both store and release heat when the working fluid circulates through the closed fluid circuit in a given direction.
Owner:CARRIER CORP

A production control method for ultra-thin-walled steel pipes

This invention discloses a production control method for ultra-thin-walled steel pipes, including obtaining first specification parameters of a solid round billet and second specification parameters of the finished steel pipe; sawing the solid round billet according to the second specification parameters to form short round billets; feeding the short round billets into an annular furnace, and sequentially passing through a heat recovery section, a preheating section, a preheating section, a heating section (sections one to four), and a soaking section for heating; monitoring the temperature of the short round billets in real time to ensure that the center temperature of the short round billets reaches a first temperature threshold. The first adjustment refers to the initial adjustment of the burner temperature based on the analysis results of the first image, used to address anomalies in the surface temperature of the short round billets; the second adjustment refers to the secondary adjustment of the burner temperature based on the analysis results of the second image, used to address anomalies in both the surface and internal temperatures of the short round billets, which helps to eliminate local non-uniformity in the temperature field of the short round billets on the surface and inside.
Owner:JIANGSU VALIN XIGANG SPECIAL STEEL

A circular roof burner

ActiveCN224397802UEliminate temperature differencereduce overheatingGaseous fuel burnerCombustorProcess engineering
The utility model discloses a kind of circular furnace top combustors, it relates to reaction furnace combustor technical field, the circular furnace top combustor, including first combustion control station, second combustion control station, the first combustion control station, second combustion control station are all including control box, gas main and hot blast main, the control box is connected with gas main and hot blast main by support frame, the end of two the gas main is equipped with hot blast ring pipe, and two hot blast ring pipe are stacked, the end of two the gas main is equipped with gas ring pipe, and two gas ring pipe are stacked, the lower portion of the gas ring pipe is provided with combustor, and combustor is provided with twelve, the present scheme solves the existing combustor by two combustion nozzles, easily lead to uneven heating, cause local overheating, furnace body collapse, reaction insufficient problem.
Owner:XIAN JOINER ENG TECH CO LTD

rear cover condenser

ActiveCN224470492UWith ventilation functionreduce manufacturing costIceboxMechanical engineering
The utility model relates to the technical field of refrigerator condenser, especially relates to rear cover condenser. Including condensing pipe, the spiral setting of condensing pipe, and the spiral structure gradually protrudes from outside to inside and presents the prism platform shape, and the condensing pipe is buckled and is equipped with the truss of multiple groups of interval settings, and multiple groups of trusses are detachably connected with the frame, and the frame is equipped with the edge foot. With condensing pipe directly instead of radiating window outer cover, the prism of condensing pipe bending is directly suspended and is installed, and the production cost of outer cover is saved, and still has the ventilation and ventilation function of radiating window, and the condensing pipe is not shielded outside, can directly with air convection, the heat dissipation is more uniform and efficient, can effectively weaken the local overheating phenomenon of the left and right side edge of refrigerator, improves the overall performance and user experience of refrigerator. The frame can be directly fixed on the refrigerator side plate, compared with the originally condensing pipe pasting type installation in the inside of side plate, this kind of outer suspension type installation operation is more convenient, reduces multiple processes, greatly reduces the labor intensity of staff, improves production efficiency.
Owner:HENAN KANGBAIEN ELECTRIC CO LTD

Valve group of miniaturized reciprocating compressor and compressor

ActiveCN224413827Urelieve overheatingminimization requirementsCylinder headMuffler
The utility model provides a kind of valve group and compressor of miniaturization reciprocating compressor, it is related to compressor field, to the problem that the temperature of existing small compressor cylinder head is too high, gas flow resistance increases and leads to efficiency reduction, by the offset structure of valve plate on the valve plate subassembly suction hole, enlarge suction valve port flow area, reduce suction resistance, reduce the pressure loss and friction heat in suction process, to reduce suction overheating, from the source to relieve cylinder head overheating problem, allow to adopt smaller size cylinder hole, meet the demand of compressor miniaturization, the valve tongue both sides of suction valve piece are provided with contraction part to form waist, exhaust hole is arranged between two sides waist, adapt to the compact space of miniaturization valve group, suction muffler outlet and cylinder cover keep apart, leave gap, cut off the heat conduction path between cylinder cover and suction muffler, form heat insulation, reduce suction overheating, reduce cylinder head temperature benign cycle, improve miniaturization reciprocating compressor efficiency.
Owner:QINGDAO WANBAO COMPRESSOR

Energy storage system

This application provides an energy storage system, including: a housing; an energy storage device housed within the housing; and a voltage limiting device, wherein a first terminal of the voltage limiting device is electrically connected to the energy storage device, and a second terminal of the voltage limiting device is electrically connected to the housing or a conductive device within the housing. This system can limit overvoltage within the energy storage device's housing while reducing the risk of thermal runaway in the energy storage system.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD +1

Method for preparing oxide glass based on induction melting process and oxide glass

PendingCN121850319Areduce defectspure appearancePot furnacesGlass furnace apparatusMolten stateHeating time
The invention discloses a method for preparing oxide glass based on an induction melting process and the oxide glass, the preparation method comprises the following steps: using a composite crucible to bear initial glass powder, the composite crucible comprises a first oxide layer, a conductive material layer and a second oxide layer which are arranged from outside to inside, a gap is formed between the second oxide layer and the conductive material layer, the composite crucible further comprises a protective felt, the gap is filled with the protective felt, the protective felt wraps the outer side of the second oxide layer, the protective felt is of a fiber structure, and the melting point of the protective felt is not lower than that of the initial glass powder; the initial glass powder is heated to a molten state through electromagnetic induction, a melt is obtained, the heating power in the first stage is in positive correlation with the heating time, and the heating power in the second stage is in a decreasing trend; and carrying out casting molding on the melt, and cooling to obtain the oxide glass.
Owner:UNIV OF SCI & TECH BEIJING

Air chamber structure of a spouted fluidized bed

ActiveCN224415143UAnti-cloggingeven airflowFluidized bedElectric machinery
The utility model provides a kind of wind chamber structure of spouted fluidized bed, comprising: wind chamber body, bottom air inlet, top air outlet, air distribution plate is provided with two layers, lower layer main air distribution plate and upper layer auxiliary air distribution plate are left empty along vertical direction, as buffer cavity, the aperture of main air distribution plate upper air hole is greater than the aperture of auxiliary air distribution plate upper air hole, auxiliary air distribution plate upper air hole is more dense compared with main air distribution plate upper air hole distribution, main air distribution plate and auxiliary air distribution plate are vibratable by vibration motor driven and installed in chamber as a whole;Air inlet component is used to the bottom air inlet of wind chamber body;Gas-solid separation component is used to receive the top air outlet of wind chamber body and carry out gas-solid separation;Material backflow component is used to receive the solid material separated by gas-solid separation component, and send into wind chamber body chamber by material backflow port.The utility model can improve the production status of air distribution plate easy to block, reduce the adverse effects caused by air distribution plate blockage on the running performance and process effect of spouted fluidized bed, and protect the normal operation of equipment.
Owner:ANHUI WANWEI UPDATED HIGH TECH MATERIAL CO LTD

Induction heating type chip welding device

The utility model discloses an induction heating type chip welding device, and relates to the technical field of chip welding. The device comprises a tool jig, wherein the tool jig is fixedly connected with a supporting rod for placing a chip through a placing cavity formed in the tool jig; the welding part comprises two hot-pressing seats, the two hot-pressing seats are symmetrically distributed by taking the tool jig as a center, one end, close to the tool jig, of each hot-pressing seat is fixedly connected with a heat conduction block, and a heat insulation plate is fixedly mounted on the outer surface of each hot-pressing seat. The utility model can effectively solve the problems in the prior art that no definite time sequence control exists in the heating and pressure applying process, the heating block starts to dissipate heat when approaching the chip, so that the welding flux is melted in advance when the pressure is not applied, the welding flux is oxidized, sheetted or bridged, and if the pressure is firstly applied and then the heating is performed, the welding flux cannot be heated. And the problem that the chip packaging material is deformed due to overlong pressure duration time is solved.
Owner:HUIZHOU FENGYU ELECTRONIC TECH CO LTD

Lightning protection grounding device

The utility model belongs to the technical field of lightning protection grounding, and particularly relates to a lightning protection grounding device. A lightning protection grounding device is characterized in that the lightning protection grounding device comprises a main body steel column, the lower part structure of which is anchored on a concrete foundation, and a downlead main body which is used for receiving lightning current from the upper part of a building and downwards conducting the lightning current; the steel reinforcement cage is arranged in the foundation, the steel reinforcement cage comprises a plurality of vertical stirrups and surrounding horizontal stirrups, the vertical stirrups and the surrounding horizontal stirrups jointly form a structural framework of the foundation, the vertical stirrups are fixedly connected with the lower structure of the main steel column, and the steel reinforcement cage is used as a foundation grounding electrode to disperse lightning current and guide the current to the foundation; and the at least two main reinforcements are electrically connected with the reinforcement cage in the foundation, are electrically connected with the main body steel column, and are used for effectively introducing and dispersing lightning current conducted on the main body steel column to the whole reinforcement cage.
Owner:GUANGDONG POWER TRANSMISSION & TRANSFORMATION ENG

A guided hollow heated cigarette

ActiveCN224386750USolve the problem of insertion deviationprevent fallingCigar manufactureMechanical engineeringPhysics
The utility model discloses a kind of hollow heating cigarettes of realization guiding, including tobacco section, hollow guide piece, wherein, hollow pipe is arranged in the tobacco section of smoke carrier, form hollow tobacco section, hollow guide piece is set in the front end (remote mouth end) of the tobacco section;The hollow cross-sectional area of the hollow pipe of the tobacco section is less than the hollow cross-sectional area of hollow guide piece;The utility model increases hollow guide piece in the front end of hollow heating cigarette, and the hollow cross-sectional area of the hollow pipe of the tobacco section is less than the hollow cross-sectional area of hollow guide piece, so that when smoking heating cigarette, the heat source of smoking set is smoothly introduced into embedded hollow pipe, thereby solve the problem that the heating body of smoking set is difficult to insert hollow heating cigarette hollow pipe, increase the experience of suction heating cigarette.
Owner:CHINA TOBACCO SHANDONG IND

Automatic lubricating system for wire drawing machine

ActiveCN224143195Ureduce frictionReduce overheating
The utility model discloses an automatic lubricating system for a wire drawing machine, which comprises a wire die mounted on the wire drawing machine, a ring body is mounted at one end of the wire die, the middle of the ring body is divided into two semi-rings, arc-shaped grooves are formed in the inner ring surfaces of the semi-rings, the arc-shaped grooves are combined to form an annular groove, a rubber ring is arranged in the annular groove, and the rubber ring is arranged in the annular groove. A center hole of the rubber ring is opposite to a center hole in the wire mold, an annular oil smearing groove is formed in the inner ring face of the rubber ring, an annular oil injection groove is formed in the outer ring face of the rubber ring, and a plurality of oil injection holes are formed between the annular oil smearing groove and the annular oil injection groove. The wire drawing device is simple in structure, the ring body can be directly installed on the wire die, operation is convenient, wire drawing oil in the annular oil smearing groove can be directly smeared on the wire when the wire passes, friction of the wire when the wire passes through the wire die can be reduced through the wire drawing oil, overheating and abrasion of the wire die are reduced, the rubber ring can be replaced, and the wire drawing device is convenient to use. Therefore, the subsequent oiling quality is ensured.
Owner:ZHEJIANG WUYIYONGXINJIXIEZHIZAO CO LTD

High-strength fastener press machine with quick die change

The utility model relates to punch press technical field, the utility model provides a kind of high-strength fastener punch press with quick die changing function, it includes: punch press, the top of the punch press is provided with hydraulic punching, the side of the punch press is provided with quick die changing cooling circulation heat dissipation assembly, the quick die changing cooling circulation heat dissipation assembly includes placement table, the placement table is set in the top of punch press.The side of the punch press is provided with anti-blocking component, the anti-blocking component includes cross bar, by above-mentioned technical scheme, the technical problem that the punch press cannot be solved in prior art easily die is installed on placement table and ensures that punch press is kept in the temperature range of proper is solved.
Owner:HANDAN LISHANG METAL PROD CO LTD

High-efficiency heavy-load roughing milling cutter for aluminum alloy

ActiveCN224406509UUnpinreduce overheatingMilling cutterMaterials science
The utility model relates to the technical field of milling cutter and disclose aluminium alloy high -efficient heavy -duty rough machining milling cutter, including milling cutter handle, the left side of milling cutter handle is equipped with the protection mechanism for the milling cutter adjustment protection, one side of protection mechanism is equipped with the quick release mechanism for the milling cutter dismounting, the inside of milling cutter handle is equipped with the cooling mechanism for the milling cutter cooling, protection mechanism includes connecting piece, connecting piece telescopic connection in the left side of milling cutter handle, the left side fixed milling cutter body of connecting piece, the lateral wall fixed of connecting piece has the connecting block of milling cutter handle sliding connection, the outer fixed surface of connecting block has two limit pieces. The utility model discloses through pushing milling cutter body, make the connecting block on connecting piece move to the inside of milling cutter handle, return to the inside of milling cutter handle with milling cutter body, and then store the milling cutter body, can protect the milling cutter body.
Owner:KUNSHAN RUIFUTE METAL TECH CO LTD

Oxygen cabin air conditioner all-in-one machine

This utility model discloses an integrated air conditioning unit for oxygen chambers, relating to the field of integrated air conditioning technology. The utility model includes an integrated unit body, inside which are installed an air conditioning compressor, an air conditioning condenser, an air conditioning fan, two radiators, and an oxygen-generating molecular sieve. An oxygen pipe is connected to the back of the oxygen-generating molecular sieve. Through the arrangement of the air conditioning compressor, condenser, fan, sealed water tank, evaporator, outlet pipe, and return pipe, during cooling, the refrigerant flow path of the outdoor unit is through the air conditioning compressor, condenser, and evaporator, while the fan generates airflow to dissipate heat from the condenser. Meanwhile, the cooling water flow path of the indoor unit within the oxygen chamber is through the sealed water tank, outlet pipe, external water pump, indoor unit, and return pipe. The cooling water exchanges heat with the evaporator in the sealed water tank, causing the refrigerant to absorb heat and evaporate before returning to the compressor. Integrating the outdoor air conditioning system into the integrated unit improves the integration of the oxygen chamber system.
Owner:ANHUI ANLAN MOLD

Metering box with detachable zero row wire clamp

The utility model discloses a metering box with a detachable zero bar wire clamp, which comprises a box body, a zero line bar, a zero bar wire clamp, a fast assembly component, a zero line through hole, a fast clamping plate, a fast disassembly component and an insulation pad, the zero line bar is detachably connected to the inner side wall of the box body, and two connecting screws are symmetrically connected between the zero line bar and the inner side wall of the box body in a threaded manner. The zero line bar can be conveniently and quickly mounted and dismounted in the box body, the zero line bar clamp is detachably connected to one side of the zero line bar, the quick mounting assembly is arranged between the zero line bar clamp and the zero line bar, the plurality of zero line penetrating holes are linearly distributed in the zero line bar clamp, a plurality of zero lines can be conveniently and respectively threaded and inserted, and the plurality of quick clamping plates are arranged. The plurality of fast clamping plates are respectively and movably arranged at the plurality of zero line penetrating holes, and the zero row wire clamp is provided with a moving cavity for moving the fast clamping plates, thereby facilitating the position adjustment of the fast clamping plates. According to the metering box with the detachable zero-row wire clamp, the zero-row wire clamp can be conveniently and rapidly mounted and dismounted.
Owner:RENQIU BEIDA ELECTRIC POWER EQUIPMENT CO LTD

Spark plug

PendingCN121844457AReduce overheatingImprove consumption resistanceSparking plugsLaser beam welding apparatusWear resistanceMaterials science
Provided is a spark plug (10) capable of improving the wear resistance of an electrode tip. A spark plug is provided with: a ground electrode (16) including a base material (17) and an electrode tip (18) joined to the base material via a welded section (19); and a center electrode (13) electrically insulated from the ground electrode, an element having a higher thermal conductivity than the thermal conductivity of the base material is present in an interface portion (30) between the welded portion and the electrode tip, and the content of the element in the interface portion is greater than the content of the element in the base material.
Owner:NITERRA CO LTD

Multi-station valve drilling and tapping compound machine

The utility model belongs to the technical field of valve machining, and relates to a multi-station valve drilling and tapping compound machine which comprises a base, a machining platform is fixedly connected to the top of the base, a trapezoidal plate is fixedly connected to one side of the middle of the machining platform, a plurality of sets of containing plates are fixedly connected to the other side of the machining platform, and an overturning assembly is arranged on one side of the middle of the machining platform. A supporting assembly is arranged in the middle of the machining platform. Through the arrangement of the overturning assembly, the phenomenon that the drill bit is prone to overheating under long-term continuous work, the hardness and the abrasion resistance of the drill bit are reduced easily due to overheating, the drilling precision and the surface quality are further affected, abrasion of the drill bit can be possibly accelerated, and the service life of the drill bit is shortened can be reduced; in addition, overheat of the drill bit may cause thermal deformation of materials and increase machining errors, and even under some extreme conditions, the drill bit may be fractured to affect continuous and stable operation of a production line.
Owner:SHENZHEN MINGYANG MACHINERY CO LTD

A conveying device for new energy vehicle forging machining

The application discloses a conveying device for new energy automobile forging machining, and relates to the technical field of automobile part machining.The conveying device comprises a chain conveyor, a heat dissipation fan is arranged above the chain conveyor, a turnover frame is rotationally connected to the top end of the chain conveyor, a feeding hopper is arranged above the turnover frame, and each end of the bottom of the turnover frame is slidably connected with an extension plate one.The driving mechanism is adopted, a transmission group one drives two rotating discs to rotate counterclockwise, and the turnover frame rotates around the rotation center under the action of the two side swing rods, so that the parts entering the turnover frame through the feeding hopper roll back and forth in the turnover frame while the turnover frame is turned over, the heat dissipation time of the parts in contact with the heat dissipation fan is prolonged, the parts roll in the turnover frame and change the contact position with the bottom of the turnover frame, the heat dissipation of the parts is facilitated, and the local overheating of the turnover frame caused by the long-time contact of the parts with the same position of the turnover frame is reduced.
Owner:JIANGSU ZHUOSHUO PRECISION MANUFACTURING CO LTD

Display screen refreshing control method and system based on power consumption control

The invention discloses a display screen refreshing control method and system based on power consumption control. The method comprises the following steps: acquiring historical display data of at least one pixel region of a display screen; predicting a future display parameter corresponding to the pixel region according to the historical display data; determining a future power consumption parameter corresponding to the pixel region according to the future display parameter and a power consumption prediction model; and determining a display control instruction of the display screen at the future time point according to the future power consumption parameters corresponding to the at least two pixel areas. Therefore, accurate display screen dynamic energy-saving control based on pixel-level power consumption prediction can be achieved, the energy efficiency of the display screen is improved, the service life of the display screen is prolonged, and the risk of overheating or energy waste caused by the fact that a high-power-consumption area is not optimized is reduced.
Owner:GUANGZHOU DACAI INTELLIGENT TECHNOLOGY CO LTD

Efficient cable peeling equipment for electric power construction

The utility model belongs to the technical field of cable peeling, and relates to efficient cable peeling equipment for electric power construction, which comprises a processing platform, a first servo motor is mounted on one side of the top of the processing platform, a supporting plate is fixedly connected to one side of the top of the processing platform, and a first driven shaft is rotatably connected to the top of the supporting plate. The output end of the first servo motor is rotationally connected to the middle of the supporting plate, two first synchronous belt wheel sets are installed in the middle of the first driven shaft, and the other ends of the two first synchronous belt wheel sets are installed at the output end of the first servo motor. According to the utility model, through the arrangement of the guiding and supporting assembly, the tail part of a cable which is being peeled can be guided and supported, so that the situation that the tail part of the cable is in a free overhanging state due to loss of fixed constraint and droops and bends under the action of gravity when the cable is peeled is reduced; the drooping bending easily causes the cable to be in a non-linear stress state, so that a reverse force is generated between the cable and the inner gear.
Owner:GUANGDONG POWER ENG

A method for producing a coarse-grained ring 6061 aluminum alloy bar

A method for preparing a coarse-grained ring-free 6061 aluminum alloy rod belongs to the technical field of aluminum alloy processing and manufacturing. It solves the problem of coarse-grained ring in the production of existing 6061 aluminum alloy rods, which causes uneven mechanical properties, poor fatigue resistance and anodic oxidation appearance defects. The method comprises the following steps: precise alloy component adjustment, low-temperature casting of round ingots, homogenization annealing, temperature-controlled low-speed hot extrusion forming with a round arc working belt mold, high-temperature online quenching, tensile straightening and low-temperature artificial aging. The present application effectively inhibits the abnormal recrystallization and growth of surface grains during the extrusion process, completely eliminates the coarse-grained ring defects of the rod section, and the obtained product has uniform and fine grain structure, stable and excellent mechanical properties, the tensile strength is not less than 310 MPa, the yield strength is not less than 270 MPa, and the elongation after fracture is not less than 12%. The product is suitable for automobile structural parts, rail transit accessories, high-end mechanical equipment and other material scenes, the process is suitable for industrialized batch production, and the production stability is strong and the application range is wide.
Owner:NORTHEAST LIGHT ALLOY CO LTD

Condition monitoring and control system for permanent magnet motors driven by oil drilling rigs

This invention discloses a condition monitoring and control system for a permanent magnet motor driven by an oil drilling rig, relating to the field of permanent magnet motor condition monitoring technology. It includes a data acquisition and construction module, a data preprocessing and feature extraction module, a dynamic monitoring and trend analysis module, a deep learning evaluation module, and a fuzzy control and real-time compensation module. The data acquisition and construction module first acquires real-time operating data of the inverter during operation through data acquisition equipment. The acquired real-time data is stored in a time-series format, and a dataset is established to provide complete and accurate basic data for subsequent analysis and model evaluation. This invention improves the stability, reliability, and energy efficiency of the permanent magnet motor driven by the oil drilling rig through real-time data acquisition, deep learning evaluation, fuzzy control optimization, and error compensation, adaptively adjusting the dead time, reducing short-circuit risk, energy loss, and harmonic damage, optimizing system performance, and improving operating efficiency.
Owner:DONGYING HERUI PETROLEUM TECH CO LTD

Power plant wastewater treatment testing device

The invention belongs to the technical field of water pollution control and treatment, and relates to a power plant wastewater treatment testing device. Comprising a shell, a first connecting plate and a second connecting plate are arranged in the shell, a plurality of evaporation pipes are arranged between the first connecting plate and the second connecting plate, a water storage barrel is fixedly connected in the shell, a plurality of through holes are formed in the lower portion of the water storage barrel, and the shell is rotationally connected with a connecting sleeve in a sealed mode; the connecting sleeve is fixedly connected with a plugging frame, and the shell is provided with a driving module used for driving the connecting sleeve to rotate. Waste water is stored in the water storage cylinder in advance, the opening degree of the through hole in the lower portion of the water storage cylinder is controlled, the discharge flow and the water inlet flow are kept balanced, when upstream water supply is interrupted, the waste water stored in the water storage cylinder can be continuously and stably supplied, it is ensured that no neutral position exists in a liquid film entering the evaporation pipe, and the problems of pipe inner wall drying and scaling caused by flow cutoff are fundamentally prevented; the continuous and stable operation of the evaporation and concentration process is ensured.
Owner:GD POWER JIUQUAN GENERATION CO LTD

Negative pressure supply device

ActiveCN224187751Ureduce overheatingavoid frequent cleaningCombination devicesTransportation and packagingControl theoryMechanical engineering
The utility model relates to the technical field of negative pressure supply systems, and discloses a negative pressure supply device. Wherein the negative pressure supply device comprises a vacuum unit, a filter unit and a buffer unit, and the vacuum unit is used for enabling an energy consumption device communicated with an air inlet of the vacuum unit to have negative pressure; the filtering unit is arranged between the vacuum unit and the energy consumption device and comprises a first filter and a second filter, the second filter is communicated with an air inlet of the vacuum unit, the first filter is communicated with one end, far away from the vacuum unit, of the second filter, and the filtering aperture of the first filter is larger than that of the second filter; the buffer unit is communicated with the upstream of the air inlet of the vacuum unit and used for buffering the negative pressure provided by the vacuum unit. According to the utility model, the cleanliness of air entering the vacuum machine can be effectively improved; and meanwhile, the negative pressure generated by the vacuum unit is buffered.
Owner:HONGTA TOBACCO (GROUP) CO LTD