49results about How to "Guaranteed purification efficiency" patented technology

The invention belongs to the technical field of smoke dust purification, and discloses a casting smoke dust purification device and a using method thereof.The casting smoke dust purification device comprises a device body, the two sides of the device body are fixedly connected with an air inlet pipe and an air outlet pipe correspondingly, an exhaust fan is installed in the air outlet pipe, and a spraying set is arranged in the device body; through cooperative arrangement of the spraying assembly and the slag suction assembly, when casting smoke dust is purified, an exhaust fan, a circulating pump and a water pump are turned on, smoke dust gas generated during casting is discharged into the device body through a gas inlet pipe, and when the circulating pump is started, a water source is pumped through a second water pipe and finally sprayed into the device body from a spray head to make contact with the smoke dust gas in the device body; and when the water pump is started, water above the filter screen is sucked away through the second drainage pipe, most impurities can be sucked away, the cleanliness of the water can be improved, and therefore the purification efficiency of the smoke dust is ensured.

The present invention relates to the technical field of sewage treatment equipment, and discloses a sewage treatment disinfection device, which comprises a treatment tank, the bottom of the treatment tank is provided with an isolation cavity, the inner wall of the bottom of the isolation cavity is fixedly provided with an aeration pump, and the output end of the aeration pump is rotatably connected with an aeration disc, an aeration head is fixedly mounted on the upper surface of the aeration disc, and a material injection assembly capable of promoting the treatment effect on organic matters in the wastewater is arranged in the treatment tank. By arranging the material injection assembly, a piston rod continuously reciprocates in the material injection barrel to pressurize the space in the material injection barrel, so that a pH value regulator in the material injection barrel is sprayed into the treatment tank through a one-way valve, and the pH value regulator is sprayed out of the treatment tank along with the rotation of the material injection barrel in the process. The diffusion range of the pH value regulator and the microbial activator is expanded, so that the pH value of the sewage in the treatment tank and the activity of microorganisms are maintained, and the purification treatment efficiency of the equipment on organic matters contained in the sewage is ensured.

The invention relates to an auxiliary welding device for natural gas pipeline laying. The auxiliary welding device comprises an edge mechanism, a middle section mechanism and a treatment mechanism. The number of the edge mechanisms is one pair, the middle section mechanism is arranged in the middle of the pair of edge mechanisms, each edge mechanism comprises a first half hoop and a second half hoop, and the first half hoops and the second half hoops are hinged. According to the welding auxiliary device for natural gas pipeline laying, a linkage frame and a linkage shaft synchronously move under the meshing effect through a motor driving the first gear and the third gear, when extrusion reaches a certain degree, a T base makes contact with a switch, and at the moment, the positions of a welding head and the linkage frame stop; the first half hoop and the second half hoop ensure that the natural gas pipeline is located in the dead center of the first half hoop and the second half hoop, it is ensured that the same distance is kept between the welding head and a point needing to be welded when the welding head conducts circular motion through the first half hoop and the second half hoop, the welding effect of the natural gas pipeline is improved, and the welding head can move to the corresponding position to conduct welding work according to natural gas pipelines of different diameters.

The present application discloses an indoor air purification device for removing formaldehyde, which relates to the technical field of air purification, and comprises a housing, a first vent and a second vent are provided on the housing, and a fixing structure for fixing the housing at the air supply or return air position of the air conditioner is provided on the housing; a first air duct and a second air duct are provided in the housing, and a formaldehyde detection unit is provided on the housing, and the formaldehyde detection unit is electrically connected with a reversing mechanism, and the reversing mechanism is used to control the first vent to be connected with the first air duct or the second air duct; a purification component is provided in the first air duct, and the purification component comprises a carrier plate and a purification material composited on the carrier plate, and the carrier plate is a porous structure. The present application realizes the comprehensive purification of indoor formaldehyde, and the purification effect is good, and by directly integrating with the air supply and return air positions of the air conditioner, the space occupancy is small, the installation is convenient, and the installation and use costs are effectively reduced.

The present invention provides a device and method for treating a water body, comprising a membrane biological reaction cylinder, on which a plurality of membrane biological reaction units are arranged in an annular array, and the plurality of membrane biological reaction units are connected with the inside of the membrane biological reaction cylinder through water inlet holes arranged at the connection of the membrane biological reaction cylinder, the purification cylinder body is formed by a pair of water inlet ducts and a pair of arc plates fixedly welded, the plurality of combing aeration rods are respectively connected with corresponding aeration cylinders through air channels arranged inside the arc plates, the ends of the telescopic rods away from the pistons are movably sleeved on the camshafts, and combing gaps are formed between the plurality of L-shaped connecting rods, the membrane biological reaction units of the present invention are in a rotating state, and cooperate with the direct aeration and combing of the combing aeration rods, thereby increasing the probability of combining biofilm fillers with oxygen, effectively preventing particulate matter from adhering to MBR hollow fiber filaments, and thus ensuring the purification efficiency of the membrane biological reaction unit.

The invention relates to a purification method and purification equipment for calcium dobesilate, and the purification equipment comprises a kettle body, a filter screen; an activated carbon layer; the middle shaft and the partition plate are arranged in a synchronous lifting mode in the axial direction of the middle shaft; the upper stirring blade and the lower stirring blade are rotationally arranged together with the middle shaft; the multiple disturbance rods penetrate through the partition plate, and the multiple disturbance rods surround the periphery of the stirring area of the upper stirring blade; a driving mechanism for driving the middle shaft to drive the upper stirring blades to synchronously rotate and a lifting mechanism for driving the middle shaft to drive the partition plate to synchronously lift are arranged outside the kettle body. Dissolution, adsorption, filtration, crystallization and discharging procedures in a calcium dobesilate purification process can be realized in only one kettle body, an intermediate product does not need to be transferred in the process of joining all the procedures, the purification efficiency can be improved, and by means of control over uniform temperature drop in the crystallization procedure, the purification efficiency can be improved. The particle size consistency of precipitated calcium dobesilate crystals can be improved, so that the purification quality is improved.

This utility model discloses a high-cleanliness dust removal device, belonging to the field of air purification. The dust removal device includes: a dust removal assembly; an air inlet and an air outlet are provided on the dust removal bucket; an air inlet baffle is installed inside the dust removal bucket, located between the air inlet and the air outlet; the upper side of the air inlet baffle is connected to the inner wall, and the lower side is open; a gap exists between the air inlet baffle and the inner wall of the dust removal bucket, and an air inlet is provided on the outer wall of the dust removal bucket corresponding to the gap; air enters the gap through the air inlet and contacts the air inlet baffle; a filter element is simultaneously connected to the air outlet; and a dust bin is located below the dust removal bucket and is connected to the dust removal bucket. By setting up the air inlet baffle, the air entering is forced to centrifugally rotate, and the dust naturally slows down and falls after hitting the inner wall, undergoing primary purification before entering the filter element, and secondary filtration before being blown out from the air outlet. This ensures the efficiency of air purification and also improves the service life of the filter element, providing a guarantee for subsequent use or air purification.

The present invention discloses an intelligent heat dissipation, dustproof and waterproof self-cleaning environmental control system, which belongs to the technical field of environmental control systems, and includes a purification box, an opening is provided at the top of the purification box, a filter bag is placed in the opening, an annular plate is fixedly connected to the top of the filter bag, the annular plate is fixedly connected to the top of the purification box, an air collecting hood is fixedly connected to the top of the annular plate, an air flow sensor is installed on the inner wall of the air collecting hood, and a driving box is fixedly connected to the top of the purification box. The present invention is provided with an exhaust fan, a filter bag, an air bag, a rotating ring, a cleaning plate and a fan blade plate. The exhaust fan sucks external air and dust into the purification box, and under the action of the filter bag, the dust filtering function is realized. In the process of the gas inside the air bag being released, the gas drives the fan blade plate to rotate, and the rotation of the fan blade plate drives the rotating ring and the cleaning plate to rotate. The cleaning plate can scrape off the dust on the surface of the filter bag, and at the same time, the fan blade plate generates wind force to blow away the fallen dust, thereby realizing the automatic cleaning function.

The utility model relates to the technical field of dopamine raw material medicine purification preheating chambers, in particular to a dopamine raw material medicine purification preheating chamber structure which comprises a preheating chamber and a condensation chamber, a preheating structure is arranged in the preheating chamber, a preheating reinforcing structure is arranged in the preheating chamber, the preheating structure comprises a feeding seat, and the feeding seat is connected with the condensation chamber. The feeding base is fixedly arranged at the upper end of the preheating chamber, an air inlet pipe is arranged on the left side of the condensation chamber, a condensation pipe is arranged in the condensation chamber, and a heat conduction plate is arranged at the joint of the preheating chamber and the condensation chamber. According to the preheating chamber structure for purifying the dopamine raw material medicine, water vapor generated in the purifying chamber can be guided into the condensing chamber to be condensed, heat carried by the water vapor can be efficiently transmitted into the preheating chamber through the heat conducting plate, and the dopamine raw material medicine is preheated by utilizing the part of heat; the temperature of the purification chamber can be prevented from being reduced when the discharging pipe is fed into the purification chamber, and the practicability and efficiency of the device are improved.

The utility model discloses glacial acetic acid purification equipment and relates to the technical field of glacial acetic acid purification. According to the glacial acetic acid purification equipment base, four supporting legs are fixedly connected to the upper surface of the base, a distillation flask is fixedly connected to the upper ends of the four supporting legs, and an accelerated purification mechanism is arranged on the distillation flask; the accelerated purification mechanism comprises a liquid inlet pipe, a steam pipe, a motor, a vertical shaft, a heating seat, a mixing rod, a first rotating hole, a second rotating hole, a connecting pipe, a heating rod, a reset spring, a mounting block, a pushing plate and a rotating sliding plate, and the steam pipe is fixedly connected to the upper surface of the distillation flask. And the mixing rod rotates to stir a mixture in the distillation flask, so that the mixture is mixed more uniformly, and the mixture in the distillation flask is heated more uniformly and efficiently, thereby ensuring the purification efficiency and quality of glacial acetic acid.

The invention discloses an online regeneration system and method for a tail gas treatment system based on redundant parallel absorption kettles, and belongs to the field of tail gas treatment. The problem that an existing absorption method tail gas treatment system cannot intelligently, safely and efficiently achieve non-stop automatic replacement of absorption liquid is solved. According to the technical scheme, the system comprises an exhaust system, the exhaust system is communicated with a circulating absorption tower through a solid removal filter screen, a plurality of absorption kettles are arranged in the circulating absorption tower and contain various absorption liquids, the types of the absorption liquids contained in at least two absorption kettles are the same, and each absorption kettle is provided with a liquid collection tank and a liquid inlet tank; every two absorption kettles are communicated with each other through a pipeline, a plurality of on-off valves are arranged on the pipelines for communicating every two absorption kettles, the on-off valves are in communication connection with a control system, the control system comprises a control execution module, and the control execution module is electrically connected with an absorption liquid failure judgment module, a circulating absorption control module and a pressure reduction and flow stabilization module; the device is applied to tail gas treatment.

The utility model provides a mute type power station smoke exhaust noise elimination device, which relates to the technical field of smoke exhaust noise elimination, and comprises a noise elimination supporting seat, one end of the noise elimination supporting seat is fixedly provided with an activated carbon cylinder, the activated carbon cylinder is filled with a sound absorption cotton sleeve, one side of the sound absorption cotton sleeve is provided with a sound guide hole, and the other side of the sound absorption cotton sleeve is provided with a sound guide hole. One end of the sound guide hole is communicated with a silencing guide pipe, and one end of the silencing guide pipe is communicated with a silencing water tank. Compared with the prior art, the box-type power station has the advantages that the noise elimination structure is additionally arranged on the smoke exhaust pipeline of the box-type power station in a sleeved mode, the detachable purification structure is arranged in the noise elimination structure to purify exhausted smoke to a certain degree, noise generation factors in the smoke exhaust process are reduced, the noise absorption structure is arranged to guide the smoke, and the noise reduction effect is good. And water is used for absorbing the flue gas, noise generated between the flue gas and pipelines in the flue gas emission process is reduced, the noise elimination comprehensiveness of the power station is improved, and noise generated when the power station works is further reduced.

The invention discloses high-efficiency iron-chromium flow battery electrolyte preparation equipment in the technical field of electrolyte preparation, which comprises a tank body, the bottom of the tank body is fixedly connected with an electro-deposition chamber, the top of the tank body is fixedly connected with a stirring motor, the tank body comprises a reaction kettle and a primary battery layer, and the top wall of the tank body is fixedly connected with the top wall of the reaction kettle. The periphery of the reaction kettle is fixedly connected with the primary battery layer; a magnetized conductive disc is arranged on the bottom wall of the reaction kettle, and the top side wall of the magnetized conductive disc penetrates through the bottom wall of the reaction kettle, extends into the primary battery layer and is fixedly connected with a plurality of reduction electrodes; a plurality of salt bridges are arranged on the side wall of the reaction kettle, the reaction kettle is communicated with the interior of the primary battery layer through the salt bridges, a transfer pipe communicated with the electro-deposition chamber is arranged in the center of the magnetized conductive disc, a transfer valve is arranged on the transfer pipe, and a liquid outlet pipe is communicated with the side wall of the bottom of the electro-deposition chamber. The iron-chromium flow battery electrolyte is novel and practical, through the primary battery layer and the electrodeposition chamber, dissolution and purification of iron-chromium alloy are accelerated, and the production efficiency and quality of the iron-chromium flow battery electrolyte are improved.

The utility model discloses hydrogen purification processing equipment which comprises a purification heat preservation box, a hydrogen purification assembly is installed in the purification heat preservation box, a temperature adjusting assembly is installed on the hydrogen purification assembly, the temperature adjusting assembly is communicated with a temperature control assembly, and the temperature adjusting assembly comprises two sets of circulating water rings. A group of spiral heat conduction water pipes are communicated between the two groups of circulating water rings; through the design of adding the temperature adjusting assembly and the temperature control assembly, when the device is used, heat around the two groups of heat conduction purification kettles is conducted out of the purification heat preservation box through liquid refrigerants with proper temperature flowing in the circulating water ring and the spiral heat conduction water pipe, and the liquid refrigerants are controlled through the electric water heater; therefore, the temperature of the hydrogen purification assembly is controlled, the situation that the hydrogen purification treatment capacity becomes poor due to the fact that the temperature of the hydrogen purification assembly is too high is prevented, the hydrogen purification efficiency can be effectively guaranteed, and the practicability of the device is improved.

The utility model relates to a kind of descaling devices, including mainframe box, processing pipeline is located in mainframe box and multiple groups are arranged in parallel, first closed chamber and second closed chamber are arranged at the both ends of mainframe box, the both ends of processing pipeline are communicated with first closed chamber and second closed chamber respectively, first closed chamber and second closed chamber are communicated with one end of descaling pipeline, the other end of descaling pipeline is communicated with medicament storage tank, medicament storage tank imports descaling reagent by pump, pump circulates reagent along first closed chamber, second closed chamber and processing pipeline, by high efficiency, the scale layer of these parts is removed, avoid the case that water passage flow is small, ensure the entire water system's unobstructed, maintain the purification efficiency of purification mainframe to cooling circulating water, ensure that equipment can be stably and efficiently operated, reduce the risk that equipment efficiency is reduced due to scale layer accumulation, reduce the maintenance cost and energy consumption cost of enterprise.

The application discloses a waste and old textile recycling water circulation system and relates to the technical field of printing and dyeing wastewater treatment.The water circulation system comprises a water circulation box body, water inlet pipelines and water outlet pipelines are symmetrically arranged on the two sides of the water circulation box body, a filter screen is arranged in the water circulation box body, the filter screen is located between the water inlet pipelines and the water outlet pipelines, a first winding assembly is arranged at the bottom of the water circulation box body, a second winding assembly is arranged at the top of the water circulation box body, and the first winding assembly and the second winding assembly are respectively fixedly connected with the two ends of the filter screen.The first winding assembly and the second winding assembly are respectively fixed with the two ends of the filter screen, the filter screen containing impurities can be wound when the second winding assembly is used to wind the filter screen, the filter screen located in the water circulation box body can be directly replaced, the filter screen can be replaced without stopping the machine in the process, and the water purification efficiency is ensured.

The invention relates to the field of air purification, and in particular to an air purification device, comprising a power assembly, a filter assembly connected to the right side of the power assembly, the filter assembly comprising a fixed frame fixed on the right side of the power assembly, a first mixing plate, a second mixing plate, a dust removal mechanism, a nano silver antibacterial gel filter, a photocatalyst filter and an activated carbon filter are sequentially plugged into the fixed frame from right to left, an air inlet is provided on the right side of the fixed frame, a top cover is detachably connected to the top of the fixed frame, air is fully mixed by the arrangement of the first mixing plate and the second mixing plate, dust in the air is evenly distributed on the dust removal mechanism after the initial mixing, and a relatively fast local blockage is not caused, dust in the air can be filtered step by step by the dust removal mechanism, and the filtering effect is good, the arrangement of the nano silver antibacterial gel filter has the effect of sterilizing and killing viruses, and the arrangement of the photocatalyst filter has the effect of eliminating harmful substances such as formaldehyde.

The utility model discloses a novel air filtering device for a breeding house, which relates to the technical field of livestock breeding and comprises an air inlet box, a preliminary filtering component is movably mounted in the air inlet box, a vibrating mechanism for vibrating the preliminary filtering component is arranged in the air inlet box, and an air supply box is fixedly mounted on the side of the air inlet box. A secondary filter screen is fixedly installed in the air supply box, an air outlet is formed in the side, away from the air inlet box, of the air supply box, a fan assembly is arranged at the air outlet, and sterilization lamps are directly arranged on the fan assembly and the secondary filter screen. According to the design scheme, through the design that the preliminary filtering assembly is movably installed in the air inlet box, after the filtering device works for a long time, the first motor drives the cam to rotate, the first-stage filtering net vibrates under the action of the cam, impurities attached to the first-stage filtering net are shaken off through vibration, and therefore the first-stage filtering net is cleaned; and the subsequent purification efficiency is further ensured.

The application discloses a variable-flow type purification device of a hydrogen purification adsorption tower and belongs to the technical field of hydrogen purification. The variable-flow type purification device of the hydrogen purification adsorption tower comprises a tower body, vacuum extraction pipes and gas inlet pipes are connected to the lower outer side of the tower body, an exhaust pipe is connected to the top of the tower body, first and second positioning screens are fixedly arranged on the inner side of the tower body, a fixing seat is fixedly installed on the upper inner side of the tower body, an elastic lifting connection is formed between the upper part of the fixing seat and a movable seat, a sealing plate is also fixedly installed on the upper inner side of the tower body, a rubber cylinder body for adjusting air pressure is fixedly connected between the movable seat and the sealing plate, and a flushing pipe is connected to the outer side of the upper part of the tower body. The variable-flow type purification device of the hydrogen purification adsorption tower can realize real-time regulation and control of the gas flow rate according to the purity of hydrogen purification, ensures the purification efficiency and the purity, and can realize efficient desorption in a combined manner, so that effective adsorption and purification of the adsorption tower are ensured.

The invention relates to the technical field of water treatment, in particular to an automatic control energy-saving type fine mixing acid unit which comprises a filter bin, an imaging device, a mixed bed, a lifting device, a pure water detection device, a flow meter, a flow speed control valve and a data analysis module, and whether a filter screen is replaced or not is judged according to the area of agglomerated blockages; judging whether ion exchange resin in the mixed bed is replaced or not according to the initial heavy metal content comparison result; adjusting the opening angle or the lifting height of the lifting device according to the first pure water flow comparison result; judging whether to adjust the initial stirring period or not according to the second pure water flow comparison result so as to obtain a target stirring period; and the central control module is used for controlling the lifting device to adjust the opening area, the lifting height and the rotating speed according to an instruction output by the data analysis module, or adjusting the opening degree of the flow control valve. The ion exchange resin is fully utilized by accurately adjusting the flow rate of the acid wastewater and the stirring mode.

The present invention relates to the technical field of vehicle-mounted purifiers, and discloses a vehicle-mounted purification system, including an airflow path, an air quality detection module, a flow control module, an air purification module, a power supply module and a control module. The present invention also discloses a vehicle-mounted air purifier and an automatic control method for a vehicle-mounted purifier. In the present invention, the air in the vehicle passes through the air intake gap between the solar panel and the air intake port, enters the purification chamber, the air first passes through an electromagnetic dust collection mechanism, and the large particle pollutants in the air are electromagnetically removed, and the air after dust removal passes through an air filter mechanism to remove organic pollutants such as formaldehyde, and the air finally passes through a negative ion generator, and is discharged after carrying the negative ions generated by the negative ion generator, so as to circulate and continuously purify the air in the vehicle, maintain the air in the vehicle within a suitable pollutant value, effectively purify the environment in the vehicle, and ensure the high-quality breathing of the driver and passengers in the vehicle.

The tool comprises a base plate and a frame body, the frame body is welded to the left side of the top of the base plate, an inner threaded pipe is movably connected to the center of the bottom end in the frame body, a threaded rod is movably inserted into the inner threaded pipe, an ejector block is welded to the upper portion of the threaded rod, and a clamping groove is formed in the upper portion of the ejector block. And telescopic rods are installed between the two sides of the bottom of the top block and the frame body correspondingly, and a cavity is formed in the center of the interior of the bottom end of the base plate. According to the tool for spraying and processing the front and rear frameworks of the outer cover, a screw rod is movably inserted into an internal threaded pipe, a door plate is opened to place a cover body above a top block, then a third motor is started, the internal threaded pipe is rotated in situ by means of a mode that a driving wheel is meshed with a transmission wheel, and the screw rod can be ejected out or stored under the limitation of a telescopic rod; and then the height of the top block is adjusted, the cover body gradually gets close to the hanging rod, then the second motor is started to rotate the cover body adsorbed to the bottom of the suction cup, and the problem that the jig is inconvenient to reinforce is solved.

The utility model discloses a welding fume purifier which comprises a partition plate arranged in an equipment main body, a purification cavity is arranged between the partition plate and the equipment main body, an activated carbon filler is arranged in the purification cavity, a connecting seat is arranged at the upper end of one side of the equipment main body, a connecting hole is formed in the connecting seat, and the connecting hole is communicated with the equipment main body. An exhaust grid is arranged at the lower end of the other side of the equipment body, and an exhaust fan is arranged on one side of the partition plate. The metal hose is arranged on one side of the connecting seat, and a smoke extraction cover is arranged at the other end of the metal hose; according to the welding fume purifier, the fume extraction hood is connected with the purifier body through the metal hose, the metal hose is bent to change the placement position of the fume extraction hood, fume extraction is conducted in different directions, the welding fume extraction range is increased, the welding fume extraction efficiency is improved, and the welding fume extraction efficiency is improved. Welding fume at multiple positions can be purified at the same time, and the using effect of the welding fume purifier is improved.

The invention discloses a gas purifier, which belongs to the technical field of gas purification equipment and comprises a first gas purification device and a second gas purification device which are adjacently arranged, the first gas purification device comprises a purification tank used for containing liquid alloy, a telescopic device arranged at the bottom of the purification tank, a pressing assembly installed at the output end of the telescopic device, an extrusion forming assembly and a material removing assembly, the extrusion forming assembly and the material removing assembly are installed at the top of the purification tank, a gas inlet is formed in the lower portion of the purification tank, and a gas outlet is formed in the upper portion of the purification tank; the compression assembly is in sliding fit with the inner wall of the purification tank, the telescopic device drives the compression assembly to move in the vertical direction, the compression assembly compresses the solid reaction material to the extrusion forming assembly and then removes the solid reaction material through the material removing assembly, the compression assembly pushes liquid alloy when ascending, and the liquid alloy enters the second gas purification device through the filtering holes. The device disclosed by the invention can be used for treating generated solid reaction materials in time.

The utility model relates to the technical field of carbon dioxide purification, and discloses carbon dioxide purification equipment which comprises a reaction tank and a sealing cover, the upper surface of the sealing cover is fixedly connected with a rotating motor, and the upper surface of the sealing cover is provided with a feed port which is the same as the interior of the reaction tank. According to the carbon dioxide purification equipment, when the rotating motor is started, not only can the mixing rod and the stirring plate be driven to rotate, but also the mixing rod and the stirring plate can be synchronously driven to move up and down; further, the mixing effect of the mixing rod and the stirring plate on the reaction gas / liquid and the to-be-reacted liquid is enhanced, the mixing efficiency of the mixing rod and the stirring plate on the reaction of the reaction gas / liquid and the to-be-reacted liquid is improved, and the purification efficiency and quality of carbon dioxide are further improved.

The utility model discloses acetonitrile production purification equipment which comprises a purification tank body, a cover plate is arranged at the top of the purification tank body, a stirring motor is mounted on the cover plate, and a flow guide ring is sleeved at the top of the side surface of the purification tank body; a fixed disc is arranged in an inner cavity of the purification tank body, collecting pipes are annularly communicated with the interior of the inner cavity of the fixed disc at equal intervals, one end of each collecting pipe is communicated with a discharging pipe, the end, away from the collecting pipes, of each discharging pipe is communicated with a flow guide ring, a one-way valve is installed on a pipe body, and one side of each flow guide ring is communicated with a discharging pipe; according to the device, the first collecting tank and the second collecting tank can be used for collecting liquid acetonitrile purified in the purification tank body, the first collecting tank and the second collecting tank do not influence each other, and when one collecting tank is replaced, the other collecting tank can continuously work, so that the situation that the production rate is reduced due to shutdown is avoided, and the production efficiency is improved. The purification efficiency of acetonitrile can be ensured to the greatest extent.

The utility model discloses an operating room air purification device which comprises a purification box body, installation plates are fixedly installed on the two sides of the purification box body, and an air inlet hole plate and an air outlet hole plate are arranged in the two installation plates respectively. Door plate assemblies used for shielding the air inlet hole plate and the air outlet hole plate are arranged on the sides, away from the purification box body, of the two mounting plates, and driving assemblies used for driving the door plate assemblies to be opened and closed are arranged on the sides, away from the purification box body, of the two mounting plates. The driving assembly drives the door plate assembly to be automatically opened and closed, when the air purifier is not used for a long time, the driving assembly drives the door plate assembly to be closed, the air inlet and the air outlet are shielded, and therefore external air is prevented from being attached to the air inlet and the air outlet; the air purification device can be normally used without being cleaned before being used, and then it is guaranteed that the air purification device can be used at any time.

The invention belongs to the technical field of helium purification, and particularly relates to membrane separation equipment for helium purification, the membrane separation equipment comprises a first circular shell and a second circular shell, and openings of the first circular shell and the second circular shell are hermetically connected with a first shell cover and a second shell cover through bolts respectively. The helium purification membrane separation device not only has the functions of gas washing, efficient dust removal, purification blockage prevention, selective purification of helium-rich raw gas, helium purification efficiency monitoring and circulating purification of a plurality of purified water layers, but also has the function of timely and automatic cleaning of the helium separation membrane mechanism and the hydrogen separation membrane mechanism; the device does not purify oxygen-enriched feed gas with low helium concentration, so that the energy consumption of the device can be reduced, the energy-saving and environment-friendly performance of the device is further improved, the purity of helium purification can be effectively improved through two-time purification, the device has the continuous purification capacity through automatic cleaning of a helium purification membrane structure, and the service life of the device is prolonged. Therefore, the helium purification efficiency and reliability of the device can be improved.

The invention discloses a sewage purification and recycling system for a municipal pipe network, relates to the field of sewage purification, solves the problem that an existing device is difficult to efficiently purify sewage according to requirements, and adopts the following scheme that the sewage purification and recycling system comprises a municipal water delivery pipe network serving as a sewage input end, the output end of the municipal water delivery pipe network is fixedly connected with a first-stage filter tank, a second-stage sedimentation tank and a third-stage disinfection tank in sequence, and the output end of the third-stage disinfection tank is communicated with a purified water storage tank for secondary utilization of purified water on the inner side of the output end of the third-stage disinfection tank; according to the sewage purification and recycling system for the municipal pipe network, through the arrangement of the first-stage filtering tank, the second-stage sedimentation tank, the first-stage disinfection tank and the third-stage disinfection tank, input sewage can be firstly subjected to filtering pretreatment, suspended solids in the sewage are removed, and then the sewage is subjected to efficient sedimentation and adsorption type purification through three groups of purification assemblies in the second-stage sedimentation tank; and then the disinfectant seat is used for disinfecting the sewage, so that the efficient purification of the sewage is realized, and the subsequent reutilization is facilitated.

The underground purification device comprises a purification box, a purification device body is arranged on the inner side of the purification box, the purification device body comprises an input pipe, a filter plate, a drain outlet and a water purification bin, the input pipe is connected to the top end of the purification box, the filter plate is installed in the purification box, the drain outlet is formed in one side of the purification box, and the water purification bin is arranged below the filter plate. One end of the input pipe is connected with a quick clamping device, the quick clamping device comprises a first motor, a small gear, a large gear, a lead screw, a fixing plate, limiting plates, an insertion pipe, a sleeve, an insertion mechanism, a rubber ring, a sliding sleeve, a matching block and a matching groove, the first motor is connected with the small gear, the large gear sleeves the outer side of the sleeve, the lead screw is connected with the sliding sleeve, and the limiting plates are arranged on the two sides of the fixing plate. The rubber ring is installed in the sleeve, the sleeve is sleeved with the sliding sleeve, the matching block is installed in the matching groove, and a cleaning device is installed in the purification box. According to the air purifier, the operation complexity and the maintenance cost caused by the fact that the purification bin is frequently taken out for cleaning are reduced.