163 results about "Roughing filter" patented technology

The present invention relates to a water sampling immersion probe (50) for continuously filtering a water sample from wastewater (14). The water sampling immersion probe (50) includes a distal coarse filter (60) with a porosity of 0.1 to 1.0 mm, a proximal fine filter (70) arranged downstream of the coarse filter (60) and having a porosity of less than 5.0 μm, and a sample suction opening (74) arranged downstream of the fine filter (70). The coarse filter (60) is arranged to not contact the fine filter (70).

The invention relates to the field of leather wastewater treatment, and discloses a leather wastewater multi-stage filtration and recovery treatment system, which comprises a primary treatment tank, one side of the primary treatment tank is fixedly provided with a rough filtration chamber, and the interior of the rough filtration chamber is fixedly provided with an inclined mesh cylinder; a slag conveying pipe which is obliquely arranged is fixedly mounted in the middle of the interior of the mesh cylinder, the tail end of the slag conveying pipe extends to the exterior of the rough filtration chamber, a conveying auger is fixedly mounted on the outer diameter of the rotating shaft, and a slag opening is formed in the side, located in the mesh cylinder, of the top end of the slag conveying pipe; a slag scraping brush is fixedly mounted in the middle of the top end of the mesh cylinder, and a secondary treatment tank is fixedly mounted on the other side of the primary treatment tank. Through three-stage progressive filtration and combination of automatic slag removal and backwashing design, the treatment load is reduced, stable operation of the system is guaranteed, maintenance is simplified, the leather wastewater treatment efficiency and the effluent quality are greatly improved, and efficient recovery is realized.

The invention relates to the technical field of power plant monitoring equipment, and discloses an abnormity monitoring device and system for deep cleaning of a wind power plant unit water cooling system, which comprises a multifunctional anti-corrosion water tank, a large-flow pulse type anti-corrosion flushing pump, a connecting assembly and a monitoring assembly, a three-stage filtering system, a temperature control assembly and a liquid level detection component are arranged in the multifunctional anti-corrosion water tank, the three-stage filtering system is sequentially provided with a rough filtering filter screen, a fine filtering filter screen and a self-cleaning filter screen in the flowing direction of cleaning liquid, and the self-cleaning filter screen is provided with a back washing spray head in a matched mode. Through full coverage of monitoring dimensions, various types of anomalies such as flow, concentration, corrosion, leakage and filter screen state can be identified, especially hidden anomalies such as early corrosion and trace leakage of a pipeline, equipment damage is avoided, early warning and response are automatic, occurred anomalies can be rapidly identified through real-time early warning, potential risks can be prompted in advance through pre-judgment early warning, and the early warning efficiency is improved. Automatic response can reduce manual intervention and improve cleaning efficiency.

The utility model discloses a ship flue gas collector filtering device, the flue gas collector is used for collecting waste gas in a ship flue, the filtering device comprises a coarse filter arranged in a sampling gas path, the coarse filter can filter the collected flue waste gas, the coarse filter is used for filtering smoke dust and tar in the waste gas, and the coarse filter is used for filtering the smoke dust and tar in the waste gas. The filter paper provides a larger contact area so as to prolong the service life; and the filter paper can also be fixed between the filter element and the sampling port (airflow inlet) by utilizing elastic force generated by the wave shape.

The invention discloses a biodiesel filtering system and method and a mining excavator, and the system comprises a filling pipeline which is connected between a refueling vehicle and a vehicle oil tank, and is provided with a diesel coarse filter; the filtering pipeline comprises a first pipeline and a second pipeline, the first pipeline is connected between a vehicle oil tank and an engine, an oil-water separator, a fuel oil primary refined filter, a fuel oil water-containing sensor and a three-way electromagnetic valve are sequentially installed on the first pipeline, the second pipeline is connected between the three-way electromagnetic valve and the engine in parallel, and a fuel oil secondary refined filter is installed on the second pipeline; the oil-water separator comprises a fuel lift pump, a water level sensor and a water discharge electromagnetic valve; and the vehicle control unit is respectively connected with the water level sensor, the water discharge electromagnetic valve, the fuel oil water content sensor, the three-way electromagnetic valve and the instrument. According to the invention, real-time and accurate detection of the water content of the biodiesel is realized, the filtering level of refined filtration of the biodiesel can be adjusted in time, and the quality of the biodiesel entering an engine is accurately controlled.

The utility model discloses off-line integrated filtering and purifying equipment, which relates to the technical field of oil product purifying equipment and comprises a vacuum filtering mechanism, a purifying and filtering mechanism, a vacuum tank, a vacuum pump, a condensing pipe assembly, an oil drain pump and a heating pipe assembly. An oil product enters the first heating pipe from the oil inlet pipe to be preheated and then enters the coarse filter, and the first heating pipe can effectively reduce the kinematic viscosity of the oil product, so that the oil product runs more smoothly after entering the coarse filter subsequently, and the oil product purification rate can be effectively increased; the oil product enters the second heating pipes to be heated after passing through the coarse filter and then is fed into the vacuum tank to be subjected to vacuum oil filtering treatment, and in the heating treatment process of the oil product through the multiple second heating pipes, contact between the oil product and the heating component is more uniform, so that the oil product is heated more uniformly; therefore, the temperature of the oil entering the vacuum tank is more uniform, and the vacuum oil filtering treatment effect of the oil is improved.

The utility model relates to the technical field of internal combustion engines, in particular to a quick disassembling and assembling device for an internal combustion locomotive air filter. The lifting table can be fixedly or movably mounted above the secondary multi-cyclone pipe type coarse filter; the top of the lifting table is connected with the lower part of a mounting plate of the air filter; according to the lifting table, fixing supports are installed above the two-stage multi-rotational-flow-pipe type coarse filter, a folding rod hinge structure is adopted between the fixing supports, and a lead screw driving shaft is arranged in the middle of the fixing supports. And the limiting stopper is fixed above the mounting plate and is connected with the box body. According to the device, the air filter mounting plate can be quickly adjusted to ascend or descend through the lifting platform mounted above the secondary multi-cyclone pipe type coarse filter, so that the air filter is convenient to replace, the overhaul and maintenance efficiency is improved, and the personal safety is guaranteed.

The invention provides a power assembly and an electric vehicle, a shell of the power assembly comprises a first shell body, a second shell body and an oil passing groove, and a space defined by the first shell body and the second shell body is used for containing at least one of a driving motor or a speed reducer of the power assembly. The end face, in the axial direction of the driving motor, of the first shell is connected with the second shell. The oil passing grooves are distributed in the end face of the first shell, and the second shell is used for sealing the oil passing grooves. The oil passing groove is used for transmitting oil to the containing groove of the shell of the power assembly through the oil outlet hole of the oil passing groove. The containing groove is used for containing at least one of a coarse filter, an oil pump or a fine filter of the power assembly. The oil outlet hole penetrates through at least one of the groove wall or the groove bottom of the containing groove. According to the power assembly, the oil passing groove used for transmitting oil is formed in the end face of the first shell, the oil passing groove can replace part of an internal oil duct of the power assembly, and the negative influence of the internal oil duct formed through machining on oil transmission can be reduced.

The invention discloses a vacuum oil filter, and relates to the field of oil filters, the vacuum oil filter comprises a coarse filter barrel, and a filter plate I and a filter plate II which are symmetrically and movably arranged at the upper end in the coarse filter barrel, and the opposite side surfaces of the filter plate I and the filter plate II are both provided with scraping mechanisms; a transmission mechanism driving the scraping mechanism to operate penetrates through the middle of the scraping mechanism, and a motor providing driving force for the transmission mechanism is fixedly arranged at the top end of the transmission mechanism. A first rotating shaft is driven by a motor to rotate, a first sliding block and a second sliding block are driven to slide along a first guide groove and a second guide groove correspondingly, and a second sliding rod generates axial reciprocating motion and intermittent rotation; the scraping rod and the scraping block rotate to scrape oil sludge on the surfaces of the first filtering plate and the second filtering plate, impurities are sucked into the filtering box through a negative pressure channel formed by the fixing block, the cavity in the side wall of the scraping rod, the hose and the inner cavity of the roller, automatic cleaning and impurity transferring of the filtering plates are achieved, and blocking is effectively prevented.

The utility model discloses a liquid pesticide coarse filtering device for a laboratory, and relates to the technical field of experimental apparatuses. The device comprises a filtering unit and a collecting unit, the filtering unit comprises an upper pressing plate, a lower pressing plate and a filter screen, the upper pressing plate is in a circular ring shape, an upper groove is formed in the lower side of the upper pressing plate, the lower pressing plate is in a circular ring shape and is the same as the upper pressing plate in size, a lower groove is formed in the upper side of the lower pressing plate, the lower groove corresponds to the upper groove, and the filter screen is arranged in the lower groove. The upper pressing plate is located over the lower pressing plate, the filter screen is installed between the upper pressing plate and the lower pressing plate, and the filter screen is located in the upper groove and the lower groove. Through cooperation of the filtering unit and the collecting unit, the device can perform coarse filtration on the liquid pesticide more quickly, so that the time is well saved, and the filtering efficiency of the liquid pesticide is improved.

The utility model discloses a purification device for cosmetic production, and relates to the technical field of cosmetic purification, the purification device comprises a purification box, a filter cartridge is arranged in the purification box, a disassembly assembly is arranged outside the filter cartridge, the disassembly assembly comprises two fixing blocks and two connecting blocks, the two fixing blocks are fixedly connected with the interior of a purification box, the two connecting blocks are fixedly connected with the outer surface of a filter cartridge, the interiors of the two fixing blocks are slidably connected with the outer surfaces of the two connecting blocks, and two supporting plates are fixedly connected to the inner wall of the purification box. Through cooperation of the purification box, the filter cartridge, the dismounting assembly and the opening and closing door, limiting of the filter cartridge can be quickly relieved, a rough filter layer, a middle filter layer and a static filter layer can be taken down to be cleaned after the filter cartridge is taken out from the interior of the purification box, convenience and rapidness are achieved, the dismounting effect is greatly improved, and it is guaranteed that cleaning is sufficient and thorough.

The present invention discloses a mobile hydraulic oil filter, comprising a hand-propelled walking frame, a casing and a cleaning system arranged in the casing, the cleaning system comprising an oil tank and an oil return cleaning component and an oil replenishing component connected to the oil tank; the oil return cleaning component comprises an oil return pipe connected to an external device and a first coarse filter, an oil return hydraulic pump component, a first fine filter and a second fine filter connected in sequence to the rear end of the oil return pipe, the oil outlet of the second fine filter is connected to the oil return port of the oil tank; the oil replenishing component comprises an oil replenishing pipe connected to an external device and a fourth fine filter, a third fine filter, an oil replenishing hydraulic pump component and a second coarse filter connected in sequence to the rear end of the oil replenishing pipe, the oil inlet of the second coarse filter is connected to the oil replenishing port of the oil tank; the mobile hydraulic oil filter of the present invention can replenish oil to the hydraulic system, can filter the hydraulic oil and lubricating oil of the hydraulic system, etc., and has good flexibility and is easy to use.

The present invention relates to a long-lasting dual water separation device applied to a fuel coarse filter, which includes a tank body, an upper cover unit assembly sealingly connected to the upper part of the tank body, and a water collecting cup sealingly connected to the lower part of the tank body. A drain valve assembly is provided at the lower end of the water collecting cup. A three-stage water separation filter element assembly is arranged in the inner cavities of the tank body and the upper cover unit assembly. A centrifugal water separation support assembly is arranged between the tank body and the water collecting cup. By adding a pre-separation structure for water, this device not only reduces the pressure on the water removal layer of the filter element, but also improves the water separation efficiency of the entire filter.

The invention relates to the related technical field of health information monitoring, and discloses integrated health information monitoring equipment and a use method thereof, the equipment comprises a monitor body, and the monitor body is internally provided with an air inlet end, a processing assembly, a condenser, a sensor, a fan and an air outlet end in sequence. The treatment assembly comprises a shell, a cavity unit capable of rotating in the circumferential direction is arranged in the shell, a baffling channel is formed in the cavity unit, and a filtering assembly with a filtering state and a cleaning state is arranged on the baffling channel. The filtering assembly comprises a first arc-shaped filtering plate forming a rough filtering unit and a second arc-shaped filtering plate forming a fine filtering unit. The cavity unit is driven by the driving assembly to rotate, so that the filtering assembly is switched between the filtering station and the cleaning station; the filter resistance change is detected through the differential pressure detector, and when the filter assembly is located at the cleaning station, the cleaning assembly applies reverse airflow to the filter assembly for cleaning.

The utility model discloses a rough filtration structure of a gearbox of a backhoe loader. The rough filtration structure comprises a box body, a rough filter, a bolt, a spring washer, a paper pad, an O-shaped ring and an oil suction pipe, the rough filter comprises an outer cover plate, a magnet, a filter screen and an inner end cover, all the parts are firmly bonded through high-strength glue, the rough filter is locked at the bottom in the box body through four sets of bolts and spring washers, and a paper pad is assembled between the rough filter and the box body to ensure sealing; a fixing plate is welded to the upper end of the oil suction pipe and locked on the box body through two sets of bolts and elastic pads, a baffle is welded to the lower end of the oil suction pipe, and O-shaped rings are assembled between the upper end and the lower end of the oil suction pipe and the rough filter so as to ensure sealing. The filter screen is simple and compact in structure, good in filtering effect and convenient to maintain, and solves the problems that a circular plane filter screen in the prior art is poor in filtering effect, the surface of the filter screen is easily blocked by foreign matters and is difficult to maintain and clean, so that a pressure reducing valve and an electromagnetic valve are blocked, and a gearbox has no gear.

The invention relates to the technical field of water filtering, in particular to a water filtering device applied to a coffee maker and a filtering method thereof.The water filtering device comprises a coffee maker body, a filtering box and a coarse filter cartridge, the filtering box is fixedly installed on the coffee maker body through bolts, and a water pump is fixedly installed at the bottom end in the filtering box through bolts; a coarse filter cylinder is arranged on one side of the water pump on the filter box, a fine filter cylinder is arranged on one side of the coarse filter cylinder far away from the water pump in the filter box, a reverse osmosis cylinder is fixedly mounted on one side of the fine filter cylinder far away from the coarse filter cylinder in the filter box, and a rotating box is fixedly mounted at the center of the bottom of the coarse filter cylinder on the filter box through a bolt. A rotating rod rotates to drive a half gear to rotate, the half gear drives a movable column on a rack plate to press downwards to accumulate force on a telescopic spring, the telescopic spring accumulates force to drive the movable column, a movable rod and an arc-shaped movable rod to knock a base ring at intervals, and impurities stuffed into holes in a filter plate are vibrated and fall off during back-and-forth flushing; impurities can be conveniently discharged, and the cleanliness of a water source is improved.

The utility model discloses a rail work vehicle fuel oil cleaning device which comprises an oil tank used for storing fuel oil, an oil feeding pipe and a fuel oil cleaning device, one end of the oil feeding pipe is located in the oil tank, the other end of the oil feeding pipe is communicated with an oil pump, a coarse filter is arranged at the end of the oil feeding pipe in the oil tank, and the fuel oil cleaning device comprises an oil return pipe and a high-frequency oscillator. The inlet end of the oil return pipe is located below the fuel level in the oil tank, the outlet end of the oil return pipe is located in the oil tank, and the filter, the oil return pump and the high-frequency oscillator are arranged on the oil return pipe and below the fuel level in the oil tank. According to the cleaning device for the rail operation vehicle, impurities in the oil tank are actively filtered and cleaned through the cleaning device, adsorption and sedimentation of the impurities in the oil tank are further reduced, the quality of fuel oil is improved, the cleaning period of the oil tank is prolonged, clean fuel oil is finally provided for an internal combustion engine, and railway transportation safety is guaranteed.

The utility model relates to the technical field of air purification, and discloses an air sterilization device which comprises a device body, pulling handles are arranged on the two sides of the device body, mounting grooves are formed in the front end and the rear end of the device body, supporting blocks are arranged on the two sides of the interior of the device body, and a sterilization block is arranged in the middle of the inner side of the device body. A stable side block is arranged on the inner side surface of the sterilization block; a coarse filter plate is arranged at the top end of the stable side block; a fitting top plate is arranged at the top end of the sterilization block; a device top plate is arranged at the top end of the device main body; a fixing rotary knob is arranged on the inner side of the attaching side block, an air inlet pipe is arranged at the top end of the device top plate, a draught fan is arranged on the inner side of the air inlet pipe, fine filter plates are arranged at the front end and the rear end of the device body, and the device body and the fine filter plates are arranged, so that the device is convenient to disassemble, overhaul and replace.

The utility model belongs to cutting fluid processing equipment technical field especially relates to a kind of cutting fluid circulation purification utilization device for coupling machining, including workbench, the middle position of workbench is equipped with waste liquid outlet, the bottom of workbench is equipped with filter box, and compression mechanism, oil dirt removal mechanism and fine filter mechanism are equipped in filter box.The cutting fluid circulation purification utilization device for coupling machining, by the design of compression mechanism, can be extruded after the treatment of the fluffy debris after rough filtration, while the volume of extruded debris is smaller, reduces storage and transportation cost, improves the convenience and recovery rate of waste scrap recycling, the inclined design of rough filter plate also improves rough filtration effect, simultaneously, the centrifugal treatment of oil dirt removal mechanism and air floatation method combined fine filter mechanism can more effectively remove oil dirt and small impurities in cutting fluid, significantly improve purification degree, prolong the service life of cutting fluid, reduce cost, also can improve coupling machining precision and surface quality, enhance product competitiveness.

The utility model belongs to the technical field of vehicle urea solution concentration detection equipment, and particularly relates to vehicle urea solution concentration detection equipment which comprises a bottom plate, a hinging frame is mounted at the bottom of the bottom plate; a telescopic assembly is hinged to the hinge frame. The bottom of the telescopic assembly is rotationally connected with a sampling assembly; the driving assembly comprises a sampling barrel; a fine filtering plate is mounted in the sampling barrel; a driving shaft is rotationally connected to the fine filtering plate; a worm wheel blade is mounted on the driving shaft; a rough filter screen is mounted at the bottom of the sampling barrel; the fine filter plate can effectively filter out small-particle impurities in a solution to ensure that a sample entering the detection equipment is purer, so that interference of small particles on a detection instrument can be reduced, the concentration detection accuracy is improved, meanwhile, the coarse filter screen and the fine filter plate are combined for use, impurities of different sizes can be more comprehensively filtered out, and the detection efficiency is improved. The purity of the sample is further ensured.

The utility model provides a recycling device of hydraulic fluid in casing die casting process, including main part, the top fixed connection of main part has filter cooling assembly and hydraulic assembly, the side fixed connection of main part has control assembly. The utility model discloses through utilizing the liquid level sensor and temperature sensor set up in oil tank interior, can be used for real -time monitoring the liquid level and temperature of hydraulic fluid, and Y type filter and high -precision filter core can be in front of hydraulic fluid entering hydraulic system, to the hydraulic fluid carries out rough filter and fine filter to remove impurity and particulate matter, ensure the cleanliness of hydraulic fluid, utilize the cooperation of circulating fan and tubular heat exchanger, can through cooling water or air to hydraulic fluid carries out cooling, circulating fan is used for accelerating the cooling process, keeps hydraulic fluid in the suitable working temperature range, through multistage filtration and cooling system, effectively prolongs the service life of hydraulic fluid, reduces the replacement frequency, reduces production cost.

The utility model belongs to the technical field of mine trucks, and provides an integrated installation device of a methanol fuel supply unit, which comprises an integrated support, a groove-shaped plate and a hoop, the integrated support comprises a frame installation section, a first bending section and a second bending section which are integrally formed, the frame installation section is connected with a frame, and the groove-shaped plate is connected with the hoop. The two ends of the first bent section are perpendicular to the frame mounting section and the second bent section respectively, and the second bent section is used for mounting a methanol pump; the groove-shaped plate is vertically arranged on the first bending section; the hoops are connected with the groove-shaped plate; and the two hoops are symmetrically arranged and are respectively used for mounting a methanol coarse filter and a methanol fine filter. According to the utility model, the methanol pump, the methanol coarse filter, the methanol fine filter and related pipelines are integrally arranged and mounted at one position, so that the integration level is higher, the structure is more compact, and the connecting pipelines are shortened, thereby expanding the applicable whole vehicle scene.

A mine wastewater recycling treatment system, including filter box, filter box top end is equipped with rough filter assembly, filter box bottom end is symmetrically connected and communicated with the shunt hopper, the shunt hopper is equipped with aeration assembly, two shunt hoppers are fixed between the partition, the both sides of filter box are symmetrically fixed with the sedimentation tank, the open end of sedimentation tank is fixed with the first screen, the first screen is equipped with the telescopic plate assembly, the gap between the open end vertex of sedimentation tank and telescopic plate assembly, one end of telescopic plate assembly is movably connected with the side wall of sedimentation tank, the reciprocating transmission assembly is arranged in the partition, the end of two telescopic plate assemblies away from the sedimentation tank is movably connected with the reciprocating transmission assembly, the bottom of two shunt hoppers is fixedly connected and communicated with a mixing tank, the double-shaft motor is fixedly installed on the top surface of mixing tank, any output shaft of double-shaft motor extends into mixing tank and is fixedly connected with stirring assembly, the other output shaft of double-shaft motor is fixedly connected with reciprocating transmission assembly, the filtering efficiency of wastewater is improved, and the impurities are collected conveniently.

The utility model discloses a microbial pesticide preparation filtering device which comprises a filtering tank, a rough filtering assembly and a fine filtering assembly, the rough filtering assembly and the fine filtering assembly are both installed in an inner cavity of the filtering tank, the rough filtering assembly is located at the top of the fine filtering assembly, and a sealing cover is installed at the top of the filtering tank. Supporting legs are fixedly mounted at the bottom of the filtering tank, and a liquid outlet pipe is arranged at the bottom of the filtering tank; the flushing assembly is installed in an inner cavity of the filtering tank, the fine filtering assembly is flushed through the flushing assembly, and a blow-off pipe used in cooperation with the flushing assembly is installed on the surface of the filtering tank. Through cooperation of the rough filtration assembly and the fine filtration assembly, double-layer filtration of a microbial pesticide solution is achieved, the filtration effect is improved, meanwhile, the flushing assembly is matched to flush and decontaminate the fine filtration assembly, and the filtration efficiency of the fine filtration assembly is improved.

The invention discloses integrated dust treatment equipment and a treatment method, and belongs to the technical field of industrial dust treatment equipment. Comprising a docking mechanism, a filtering mechanism and a linkage mechanism, rigid linkage is formed between a turbine structure of a gas inlet pipe opening and a purification part through a belt wheel system, after dust-containing waste gas enters a turbine cylinder, a turbine paddle is naturally impacted to rotate, a first belt wheel at the shaft end of the turbine paddle transmits power to a second belt wheel outside a first purification part through a synchronous belt, and a conical cylinder type coarse filtering cylinder is directly driven to rotate at a high speed; a linkage mechanism is used for constructing a waste gas kinetic energy-mechanical power conversion closed loop, the energy consumption mode that traditional dust removal equipment depends on external power source driving is changed, kinetic energy carried by waste gas is fully recycled, dual optimization of energy saving and efficiency is achieved, and a brand new path is provided for low-carbon development of industrial dust removal equipment.

The utility model discloses an engine oil coarse strainer with a dismounting structure, which comprises an engine oil strainer component, a scraping structure is fixed on the engine oil strainer component and is used for assisting in cleaning, the dismounting structure is mounted on the engine oil strainer component in a dismounting manner, the engine oil strainer component comprises a coarse strainer shell, and a first strainer is mounted in the coarse strainer shell in a dismounting manner. According to the engine oil coarse filter screen with the detachable structure, large-particle impurities in oil liquid are pretreated through the first filter screen, the service life of the filter screen body is prolonged, the filter screen body is not prone to falling off, the filter screen body is not prone to falling off, the filter screen body is not prone to falling off, and the service life of the filter screen body is prolonged. After pretreatment, impurities on the surface of the first filter screen are directly scraped and cleaned through a first connecting rod, a second connecting rod and a scraping plate, and through the arrangement of a base, an oil leakage screen, an oil outlet pipe, a second sealing cover, a connecting base and a filter paper screen body, the oil leakage screen and the filter paper screen body are detachably mounted.

The utility model discloses a corrosion-resistant vacuum solid-liquid separation oil mist filtering and purifying device which comprises a supporting frame, an oil inlet pipe is arranged on the supporting frame, one side of the oil inlet pipe is connected with a coarse filter, one side of the coarse filter is connected with a vacuum tank, one side of the vacuum tank is connected with a fine filter, and the fine filter is connected with a vacuum pump. One side of the fine filter is connected with an oil outlet pipe; the utility model relates to the technical field of oil mist filtration and purification, in particular to a corrosion-resistant vacuum solid-liquid separation oil mist filtration and purification device, through a rough filtration-vacuum water removal-fine filtration three-stage purification system, the solid residual quantity is reduced, a cleaning control assembly integrates rotary bristles and negative pressure linkage, dynamic cleaning of spray holes of an atomizer is achieved, the blocking rate is reduced, and the oil mist filtration and purification efficiency is improved. The temperature of the vacuum heating module is accurately controlled to 75 DEG C, the condensation tank is combined to quickly separate water vapor, and the negative pressure unit is modularized, so that the maintenance period is prolonged, the energy consumption is reduced, secondary pollution is completely eradicated through a full-process closed structure, and the system is suitable for high-precision industrial scene requirements.

The utility model discloses a waste heat recovery type membrane separation nitrogen-making system, which relates to the technical field of nitrogen preparation and comprises a compartment body and a coarse filter, a filter cartridge is mounted in the coarse filter, a fluted disc is connected to the upper part in the coarse filter, a scraper is fixed at the bottom of the fluted disc, a gear is connected to one side in the coarse filter, and a worm gear is connected to the top of the gear. Through the arrangement of the volute, the wind wheel, the scraper and the filter cartridge, large-particle impurities in air are filtered through the filter cartridge, so that most impurities in the air are removed, the working pressure of follow-up fine filtration is effectively reduced, the service life of a filter element and a filter membrane in a follow-up fine filter is prolonged, the replacement interval is prolonged, and the working efficiency is improved. The air flow enters the volute when being discharged from the coarse strainer, and the air flow pushes the wind wheel to rotate so as to enable the scraping plate to rotate; large-particle impurities in air are filtered through the front rough filtration structure, so that the working pressure of a filter element and a filter membrane in a subsequent fine filter is reduced, the service life of the filter element and the filter membrane is prolonged, and the replacement interval is prolonged.

The application discloses an amphibious vehicle engine water-proof mechanism, belonging to the field of engine water-proof, which comprises a filtering assembly, a drainage assembly and an exhaust assembly, the filtering assembly comprises an air filter box, a connecting frame is arranged in the air filter box, an air rough filter core is arranged in the connecting frame, a cover plate is connected to the front end of the air filter box, a gravity check valve is arranged at the bottom of the air filter box, an air inlet pipeline is arranged at the upper end of the air filter box, a connecting cover is connected to one end of the air inlet pipeline, and a filter screen is detachably connected to the connecting cover, the filtering assembly cooperates with the drainage assembly and the exhaust assembly, which can not only facilitate the water-proof effect of the amphibious vehicle engine, but also facilitate double drainage operation through the air filter box, the gravity check valve and the drain pipe, so that the water-proof effect of the water-proof mechanism can be significantly improved, the practicality of the water-proof mechanism can be improved, and the amphibious vehicle engine can be prevented from being flooded.

The utility model relates to a device for gas-liquid separation belongs to hydrogen fuel cell engine hydrogen supply circulation system's gas-liquid separation technical field, aiming at the problem that separation efficiency and system resistance are difficult to balance in prior art, cannot give consideration to different particle size droplet separation and impurity gas discharge, the device includes upper casing and lower casing, the upper casing is divided into rough filter cavity and fine filter cavity through vertical partition, is equipped with radial guide component and I -shaped impact separation component in rough filter cavity, is equipped with cyclone separator with inner cylinder in fine filter cavity, and lower casing forms water collecting cavity, gas-liquid mixture is guided to impact separation component and separates big droplet after being guided to guide component, enters cyclone separator and separates small droplet through centrifugal force, and separated liquid converges into water collecting cavity, and the outlet cavity passes through hydrogen concentration sensor control impurity gas discharge, the utility model realizes different particle size droplet high -efficient separation, reduces system resistance, guarantees that hydrogen purity meets the requirement, promotes hydrogen recycling rate, is applicable to hydrogen fuel cell engine hydrogen supply circulation system.