52results about How to "Avoid affecting the purification effect" patented technology

The invention discloses a compound VOCs absorbing concentration turning wheel and a use method thereof and belongs to the technical field of absorption of organic gas. The compound VOCs absorbing concentration turning wheel is formed by coaxially equal-diameter butt-jointing a molecular sieve turning wheel and a honeycomb activated carbon turning wheel, wherein the honeycomb activated carbon turning wheel is located on a VOCs inlet side; an absorbing area, a desorption area and a cooling area are arranged on each turning wheel; an isolating ring is arranged at the butt-joint of the two turning wheels; the isolating ring is used for isolating the absorbing areas, the desorption areas and the cooling areas of the two running wheels, redistributing wind and reducing wind resistance; the molecular sieve turning wheel is acquired by attaching the VOCs adsorbent to the honeycomb turning wheel in the manner of spraying, leaching or impregnating. According to the invention, the molecular sieve turning wheel and the honeycomb activated carbon turning wheel are combined with each other, so that the absorbing scope is widened, the purifying efficiency is increased, the quality of purified gas is further ensured and the occupied space of equipment is saved.

The invention discloses a haze removal device and a haze removal method. A method for electrostatic dust collection by electrified particulate matters is not adopted, an electrostatic attraction method is adopted, a bipolar plate structure is not adopted, an electrode plate group is adopted, a distance between the electrode plates is short, low tension can be adopted and the safety is good; stage purification is adopted, and oversized particulate matters can be prevented from being adsorbed onto the electrode plate, thus, the whole purification effect is not influenced and the whole purification effect is better; particularly, a groove structure is adopted, on one hand, the electric field is reconstructed, on the other hand, gas can roll and form turbulent flows between the electrode plates, the particulate matters can be adsorbed favorably; more particulate matters can be contained by the groove structure, and the maintenance period is prolonged.

The invention relates to a smoke dust hydrator. The smoke dust hydrator comprises a first container, a main gas inlet pipe, a flow splitting chamber, a plurality of gas inlet branch pipes, a first barrel-shaped foam intercepting net, an umbrella-shaped foam intercepting net, first tapered pipes, first dust deposition pipes and a first gas outlet pipe, wherein the main gas inlet pipe penetrates through and is fixedly connected with the top of the first container; the flow splitting chamber is of a hollow cavity and an opening at the top of the flow splitting chamber is connected with the main gas inlet pipe and extends to one end of the inner part of the first container; a plurality of openings are formed in the bottom of the flow splitting chamber and are connected with the upper ends of the plurality of gas inlet branch pipes; the lower ends of the plurality of gas inlet branch pipes are connected with the first barrel-shaped foam intercepting net; the umbrella-shaped foam intercepting net is arranged at the peripheries of the gas inlet branch pipes above the first barrel-shaped foam intercepting net; the lower end of the first barrel-shaped foam intercepting net is connected with an upper-end large opening of the corresponding first tapered pipe and a lower-end small opening of the first tapered pipe is connected with the corresponding first dust deposition pipe; the lower ends of the plurality of first dust deposition pipes are combined and extend to a dust deposition chamber below the first container; and one end of the first gas outlet pipe is fixedly connected with the top of the first container. The smoke dust hydrator has high efficiency of filtering smoke dust, and is complete in purification, low in cost and rapid in effect.

The invention discloses an air purifying and filtering system, which comprises a box body; the box body is divided into two parts by a flexible diaphragm from top to bottom; the upper part is a washing chamber filled with water, and the lower part is a pneumatic chamber connected with an air pump; the side wall of the pneumatic chamber is provided with a vent hole with a sealing cover; the upper and lower ends of side wall of the washing chamber are respectively provided with a water inlet and a water outlet; the water inlet and water outlet are provided with sealing covers; the top of the box body is provided with an air inlet and an air outlet; the air inlet is connected with an inlet pipe equipped with a blower; the inlet pipe is communicated with the bottom of the washing chamber; and the top half of the washing chamber is provided with a main filtering layer. The system can clean the main filter layer automatically and reduce the work of replacing and cleaning the filter net, and also has a good filtering effect to obtain dry pure air.

The invention discloses a boiler environment-friendly purification device for a power plant. The device comprises a cylinder body, a feeding mechanism, a water supply assembly and a programmable logiccontroller (PLC); the cylinder body communicates with the feeding mechanism through the water supply assembly; a spraying main pipe is fixedly installed at a position, close to the axis, in the cylinder body; a flue gas inlet is fixedly connected to one end of the cylinder body; a detection pipe is fixedly connected to one end of the flue gas inlet; and a sulfur dioxide sensor is fixedly installed on the surface of the inner wall of the detection pipe. Through arrangement of the feeding mechanism, the content of lime in a desulfurization liquid can be adjusted in time according to the contentof sulfur dioxide in flue gas, so that waste of resources caused by excessive lime content is avoided, and meanwhile, influence on the purification effect due to too low lime content can also be avoided. The purification device has very good environmental friendliness, and the purification effect of the device can be improved. Through an arranged spraying assembly, spraying uniformity of the desulfurization liquid can be ensured, so that the desulfurization liquid can be in comprehensive contact with the flue gas.

The invention discloses a formaldehyde purification device based on wireless communication, which comprises a machine body. A formaldehyde detection device is arranged in the machine body; the formaldehyde detection device internally comprises an air suction fan; a formaldehyde purification device and a wireless transmission device are further arranged on the lower side of the formaldehyde detection device, The formaldehyde detection device is arranged for real-time detection of formaldehyde, once the concentration of formaldehyde is too high, the device can give out an instruction to treat formaldehyde, the formaldehyde purification device is arranged at the lower end of the left side of the formaldehyde detection device, formaldehyde is collected and purified, purified gas is exhausted,internal gas mixing is avoided, the purification effect is prevented from being affected, mechanical transmission and wireless control are adopted in the device, the automation degree is high, and theapplication range is wide.

The invention discloses an independent combustible gas detection apparatus. The independent combustible gas detection apparatus comprises a gas collection tank, wherein an air inlet is arranged at a lateral part of the gas collection tank, the air inlet is positioned outside the gas collection tank and communicated with a filter tube; a connection bench, wherein a pipeline is fixedly arranged in the connection bench; a casing, wherein a top board is arranged at the top of the casing, baffle rods are symmetrically and fixedly arranged at two sides of the top board; an analysis apparatus which comprises a first detection chamber, a second detection chamber and a third detection chamber vertically and downwardly and fixedly arranged at the top board, and sensors are fixedly arranged at the top of the first detection chamber, the second detection chamber, and the third detection chamber; a purifying case, wherein several steel plates are horizontally and fixedly arranged at internals up and down in the purifying case, and the steel plates are filled with a gas purifying material; and a cycle apparatus which comprises a gas case, a first exhaust pipe and a second exhaust pipe fixedly arranged at a side wall of the casing. The independent combustible gas detection apparatus has the advantages of simple structure and high data detection accuracy, the purified gas is used for repellingthe residual gas in the independent combustible gas detection apparatus, and the protection effect on the sensor is realized.

The invention discloses a set of improved corner type air purification equipment, relates to the technical field of air purification, and solves the problem that the traditional air purification equipment is complex in structure and poor in purification effect. The equipment comprises a purifier body, an air inlet is arranged at the lower end on one side of the purifier body, and an air outlet isarranged on the other side of the purifier body. The equipment is characterized in that an one-way valve is arranged in the air inlet, a buffering surface is arranged on the purifier body, and a backflow prevention baffle is arranged in the purifier body; a water inlet channel is arranged on the outer side of the upper end of the purifier body, and a nozzle which is communicated with the water inlet channel is arranged on the inner side of the upper end of the purifier body; baffles and filtering layers are arranged in the purifier body, and the pore sizes of the filtering layers are different; and a water discharging slot is formed in the lower end face of the purifier body, and the one-way valve and the water discharging slot both are connected with water outlet pipes. The equipment hasthe advantages of being simple in structure, wide in application range, good in purification effect and free from noise.

The invention discloses a straight-through gas purification device, and relates to the technical field of gas purification. The problems that an existing gas purification apparatus is complicated in structure and is poor in purification effect are solved. The straight-through gas purification device comprises a purifier body, wherein two ends of the purifier body are provided with a gas inlet anda gas outlet respectively. The straight-through gas purification device is characterized in that the outer side of the upper end of the purifier body is provided with a water inlet passage; the innerside of the upper end of the purifier body is provided with spray pipes communicated with the water inlet passage; the interior of the purifier body is provided with baffle plates; the interior of thepurifier body is provided with filter layers; the lower end surface of the purifier body is provided with a water drainage channel used for collecting wastewater. The straight-through gas purification device has the advantages of being simple in structure, wide in scope of application, good in purification effect and free from noise.

The invention relates to the technical field of sewage treatment, and discloses a membrane biological reaction MBR integrated sewage treatment system which comprises a tank body, a treatment tank is arranged in the tank body, and an adjusting tank, a facultative tank, a membrane biological reaction tank and a sludge tank are sequentially and adjacently arranged in the treatment tank. Circular access holes are formed in the top ends of the adjusting tank, the facultative tank and the membrane biological reaction tank, cover plates are arranged on the upper end surfaces of the circular access holes, a grating well is arranged on one side, close to the adjusting tank, outside the tank body, a fence is fixedly mounted in the grating well, and an equipment water inlet pipe and a first connecting pipe are fixedly connected to two sides of the grating well respectively. According to the membrane biological reaction MBR integrated sewage treatment system, sludge intercepted in the membrane biological reaction tank is discharged into the sludge filter basket through the sludge pump, water is filtered out and flows back into the adjusting tank, sludge remains in the sludge filter basket andis convenient to clean, and by arranging the multiple aeration pipes, the heights of every two adjacent aeration pipes are different, so that the sewage treatment efficiency is improved. The aerationrange of the water flow is enlarged, and the aeration effect is enhanced.

The invention discloses a liquid-phase circulation air purification device. The liquid-phase circulation air purification device comprises a columnar shell, the side face of the shell is provided with an air quality detection probe and a T-shaped air inlet, the top surface of the shell is provided with a control panel and two air outlets, air outlet baffle plates matched with the air outlets are arranged in the two air outlets, a cylindrical atomizing bin is arranged in the shell, an air inlet device is arranged on the side face, close to the air inlet, of the atomizing bin, an air draft device is arranged at the top of the atomizing bin, an air outlet of the air draft device is connected with an air exhaust pipe, the air exhaust pipe is a U-shaped pipe, openings of the two ends of the air exhaust pipe face upwards, the air outlet of the air draft device communicates with the bottom of the air exhaust pipe, and the openings of the two ends of the air exhaust pipe correspondingly communicate with the two air outlets in the top surface of the shell. The liquid-phase circulation air purification device has the advantages that purification air is fast in diffusion, the air disinfection is full and thorough, and an absorption liquid recovery function is achieved.

The invention discloses an anti-freezing method for a fresh air duct of an air conditioner. The air conditioner is provided with the fresh air duct, a fresh air fan, a heating device, and a fresh airinlet pipe connected to the air inlet of the fresh air duct, wherein the fresh air fan is arranged in the fresh air duct; the heating device is arranged in the fresh air inlet pipe, or the heating device is arranged at the air inlet of the fresh air duct; and the anti-freezing method for the fresh air duct of the air conditioner comprises the following steps of obtaining air temperature and indoordew point temperature on the fresh air duct after turning on the fresh air fan; and controlling the heating device to heat when the difference between the indoor dew point temperature and the air temperature is greater than or equal to a first preset threshold. The invention also discloses an air conditioner and a storage medium. The invention can effectively prevent the temperature of the freshair entering the room outside from being too low to cause the indoor air to freeze when coming into contact with a purification device in the fresh air duct, and prevent the purification device from freezing and affecting the purification effect.

The invention relates to a purification treatment method for purifying gallium from waste electrolyte, which is characterized in that the treatment process comprises that: the electrolyte is filtered to remove floating slag and passive film of the electrolyte, the electrolyte to be purified is used as an electrolysis medium to electrolyze an insoluble anode, thus precipitating and eliminating impurities and Ga, and the purified electrolyte can be sent back to be reused. On the one hand, the purification and treatment method for purifying gallium from waste electrolyte can purify the electrolyte by electrolyzing the electrolyte, thus recycling the electrolyte, cutting down alkaline consumption and realizing the closed loop circulation of the electrolyte during the purification process of gallium; on the other hand, a specialized electrolyte recovery device needs not to be set up, thus simplifying the production process and improving the production efficiency.

The invention discloses a heating, ventilation and humidification device with an air purification function, and further discloses an implementation method of the heating, ventilation and humidification device with the air purification function. The device comprises a heating, ventilation and purification mechanism, a water storage and humidification mechanism and a bearing control mechanism, wherein the water storage and humidification mechanism is arranged on the outer wall of one side of the heating, ventilation and purification mechanism; and the bearing control mechanism is arranged at thebottom end of the heating, ventilation and purification mechanism. According to the device, when a dust collection fan is used for collecting dust indoors, a gear motor can be used for driving a rotating shaft to rotate by a certain angle and driving an air inlet baffle to rotate, so that constant control over the dust collection amount and the purification speed is achieved; and meanwhile, afterharmful substances such as formaldehyde in the air enter a purification box, titanium dioxide substances on the catalyst carrier are illuminated by ultraviolet rays emitted by an UV lamp tube, so that residual formaldehyde in the air and formaldehyde volatilized for the second time are catalytically decomposed, the formaldehyde in the air can be conveniently and thoroughly converted and removed,and the air purification effect is better achieved.

The invention discloses a spraying purification tower, which comprises a tower body, a plurality of atomization nozzles are arranged on the inner surface of the tower body, a sieve plate is fixedly connected to the lower middle position of the inner surface of the tower body, and the position, located below the sieve plate, of the inner surface of the tower body is filled with purification liquid.An air inlet communicated with the inner surface of the tower body is further formed in the outer side of the tower body and located below the sieve plate, a U-shaped pipe is communicated with one end of the air inlet located on the inner surface of the tower body, and the other end of the U-shaped pipe is located on the sieve plate. According to the invention, a part of liquid can enter the U-shaped pipe to block the U-shaped pipe, entering waste gas can enter purification liquid from the gas outlet holes, is primarily purified by the purification liquid and then enters from the gas inlet, the gas entering speed can be decreased, the purification efficiency can be guaranteed, and the waste gas is sprayed out from the end, located above the sieve plate, of the U-shaped pipe; and the gas is finally purified by matching with liquid sprayed by the atomizing spray head and is discharged from an outlet in the top end of the tower body.

The invention relates to an extraction method, a detection method and an extraction device for flavors and fragrances in food. Liquid-liquid layering is carried out by utilizing a solvent-induced phase change phenomenon and solute extraction is realized; a phase change solvent is added into the binary solvent system; the phase balance of the binary solvent system is destroyed by the addition of the phase change solvent; new balance is reached, consequently, solution stratification is caused; second liquid is cooled to the temperature at which a water phase layer is solidified but an organic phase layer is not solidified, the re-phase balance can be promoted, layering is more thorough, the proportion of the water phase in the organic phase is reduced, and a target detection object is more completely transferred from the water phase to the organic phase; therefore, better signal response and higher recovery rate can be obtained in a subsequent instrument detection method, the steps of column passing purification, nitrogen blowing, redissolution and the like are not needed, the operation is simple and rapid, a purifying agent does not need to be added in subsequent detection, and theinfluence on the purification effect due to the operation of detection personnel is avoided.

The invention relates to the technical field of traffic lights. The invention further discloses a traffic signal lamp with the anti-haze function. The traffic signal lamp comprises a lamp pole fixedlyinstalled on the ground and a water tank. The top of the lamp post is fixedly connected with a cross beam; a lamp body is fixedly mounted on the cross beam; the water tank is close to the lamp post wall; a water pump is fixedly mounted in the lower surface in the water tank; the output end of the water pump is fixedly connected with one end of a water pipe; the other end of the water pipe sequentially penetrates through the top of the water tank and the cross beam; the cross beam is fixedly connected with a rotating pipe through a first sealing bearing in a rotating mode, the other end of therotating pipe fixedly communicates with a spraying pipe, a plurality of evenly-distributed spraying heads are fixedly installed on the upper surface of the spraying pipe, a haze removing barrel of acylinder structure is arranged over the cross beam, and the haze removing barrel is fixedly connected with the upper surface of the cross beam through a supporting base. According to the traffic signal lamp with the anti-haze function, the traffic signal lamp has the good anti-haze function, and therefore traffic jam and accidents are effectively avoided.

The invention provides a low-temperature environment used hydrazine-containing exhaust gas treatment device. The hydrazine-containing exhaust gas treatment device comprises a catalytic reaction tower, wherein the catalytic reaction tower comprises a gas inlet pipeline, a catalytic reaction zone and a gas outlet pipeline, the gas inlet pipeline is arranged at the bottom, the gas outlet pipeline is arranged at the upper part, and the catalytic reaction zone is arranged in an area between the gas inlet pipeline and the gas outlet pipeline; a composite catalyst is arranged in the catalytic reaction zone in a grouped and layered manner, and the composite catalyst bulk density of the bottom of the catalytic reaction zone is higher than that of the upper part of the catalytic reaction zone; and heating devices are arranged on peripheral tower walls of the catalytic reaction zone. According to the hydrazine-containing exhaust gas treatment device applicable to the low-temperature environment, the problems that hydrazine-containing exhaust gas treatment equipment is poor in low-temperature adaptability, is complicated and the like are solved, hydrazine-containing exhaust gas treatment can be carried out in plateau and North low-temperature environments, and standard reaching emission is achieved.

The invention discloses a movable anti-freezing, deodorizing, water-saving and composting integrated ecological toilet. The anti-freezing composting ecological pit toilet comprises a urinal and a fermentation tank. A urinal opening of the urinal is respectively communicated with a urine storage barrel and a communicating pipe through a solid-liquid separation device; the other end of the communicating pipe is connected with the fermentation tank; a negative pressure fan is arranged on an upper cover of the fermentation tank; the fermentation tank is communicated with a purification barrel through an exhaust hole formed in the upper cover; a flushing bucket is communicated with the urinal; and the urine storage barrel, the purification barrel and the flushing bucket are sequentially communicated. The ecological pit toilet has the beneficial effects that excrement falls into the communicating pipe and is sucked into the fermentation tank through the negative pressure fan to be composted,high-temperature gas is generated in the composting process of the fermentation tank and introduced into the purification barrel through the communicating pipe, liquid in the purification barrel is heated, and the situation that the purification effect is affected because the temperature of the liquid in the purification barrel is too low in winter is prevented; percolate generated in the fermentation process is collected by the container and flows back into the urine storage barrel to realize further purification and cyclic utilization.

The invention discloses a municipal waste incineration device. The municipal waste incineration device comprises a box body, wherein a feeding box is arranged on the left side of the upper portion ofthe interior of the box body, an incineration box is arranged on the right side of the feeding box, and a transition pipeline is arranged on the lower portion of the the left side of the incinerationbox; a compression box is arranged at the end, far away from the incineration box, of the transition pipeline, a gas outlet pipe is arranged on the upper portion of the incineration box, a condensingdevice is arranged on the gas outlet pipe, and a drying plate is arranged on the right side of the condensing device; and a purifying plate is arranged at the end, far away from the incineration box,of the gas outlet pipe, and a gas outlet is formed in the side, far away from the gas outlet pipe, of the purifying plate. When the device runs, the drying plate is used for absorbing moisture in waste gas, so that the situation that the purifying effect is affected due to the influence of the moisture on the purifying plate is avoided; due to the fact that the drying plate absorbs the moisture, the drying plate needs to be replaced regularly, a drying pulling plate is pulled out of the gas outlet pipe through a drying handle, and then the drying plate in limiting grooves can be replaced; andthe pulling process is stabler through a sliding table, and the device is suitable for large-scale popularization.

The invention belongs to the field of detection equipment, and specifically discloses a dust detection and purification device, which includes a frame on which a driving roller and a driven roller are rotatably connected. It is set opposite to the driven roller; the driven roller is covered with a first bump and a second bump, and a belt for transmission is also provided between the driving roller and the driven roller, and the belt is located between the first bump and the second bump. There is a magnetic block between the bumps and on the belt; fiber filter cloth is provided in the cavity of the driving roller on the side of the piston away from the piston rod, and a filter cloth is provided on the driven roller to match the feed port and communicate with the cavity. A through hole, the driven roller is also provided with a through hole that matches the discharge port and communicates with the cavity; the cavity of the driving roller is provided with a detection unit on the side close to the small diameter end of the driving roller. By adopting the solution of the present invention, the requirement that the dust can be purified in time after the dust detection is completed is met.

The invention relates to an odor purifier, and especially relates to an odor purifier for kitchen residues . The odor purifier for the kitchen residues is high in efficiency, easy to operate and manage, low in operation cost and good in purification effect. The odor purifier for kitchen residues comprises a mounting block, a rotating seat, a first support, a fan, a filter screen, a driving mechanism and a shielding mechanism, the rotating seat is arranged on the mounting block, the first support is arranged in the mounting block, the fan is mounted in the middle of the first support, the filter screen is arranged in the mounting block, the driving mechanism is arranged between the mounting block and the rotating seat, and the shielding mechanism is arranged in the driving mechanism. Peculiar smell is sucked out through the fan, the peculiar smell is primarily filtered through the filter screen, the peculiar smell is filtered again through the activated carbon filter block, the purification effect of the rice residue bad smell is enhanced, and meanwhile the peculiar smell is filtered more evenly through rotation of the activated carbon filter block.

The invention discloses a hospital purifier which comprises a purification device, the upper end face of the purification device communicates with a conveying pipe, the lower end face of the purification device is fixedly connected with a fixing plate, the interior of the conveying pipe is rotationally connected with a vibration shifting plate, and the vibration shifting plate deflects in a reciprocating mode along with flowing of airflow in the conveying pipe. The end, close to the conveying pipe, of the vibration stirring plate is rotationally connected with a ratchet wheel stirring rod, the ratchet wheel stirring rod is in driving connection with a rotating ratchet wheel, the rotating ratchet wheel is in driving connection with a sliding toothed plate, the sliding toothed plate is slidably connected into the purification device, and a filtering device is fixedly installed in the purification device. And a cleaning device is attached to the surface of the filtering device, the cleaning device is movably connected with the sliding toothed plate, and the air purification range and effect are greatly improved by combining with a hospital ventilation system.

The invention provides a household air conditioner, and belongs to the technical field of indoor air conditioning. The household air conditioner comprises an adjusting and purifying assembly and a humidifying assembly. The adjusting and purifying assembly comprises a box body, an air inlet pipe, a coarse filter screen plate, a fine filter screen plate, a frame, a fan, an air outlet pipe and a fastener. The fastener comprises a fixing shaft and a baffle, the fixing shaft is arranged at the outer top of the box body, and one end of the baffle is rotationally connected to the surface of the fixing shaft in a sleeving mode. The humidifying assembly comprises a water tank, a water pump, an atomizing spray head and a water drainage pipe. Through arrangement of the box body, the air inlet pipe, the coarse filter screen plate, the fine filter screen plate, the frame, the fan, the air outlet pipe and the fastener, certain air conditioning is achieved while filter screens are conveniently and rapidly taken out to be cleaned. The situation is avoided that the purification effect is affected due to adhesion of dust after long-time use. Meanwhile, the water tank, the water pump and the atomizing spray head are arranged, so that air is wet to a great extent, and the air entering a room is fresh and wet.

The invention discloses underground movable dust removal equipment for a coal mine. The equipment comprises a shell, a fan, a filter element and an isolation plate, wherein an air inlet and an air outlet are formed in the shell, and universal wheels are installed on the lower portion of the shell; the fan comprises an air blowing port which is arranged close to the air outlet; the filter element is arranged in the shell, is close to the air inlet and is arranged below the fan, the filter element comprises an open end and a closed end, and the open end directly faces the air inlet; and the isolation plate is arranged between the fan and the filter element, a mounting hole is formed in the isolation plate, the open end is detachably mounted in the mounting hole, and the isolation plate isolates an element body of the filter element from the fan. According to the underground movable dust removal equipment for the coal mine, the universal wheels are installed below the shell, the dust removal equipment can move through the universal wheels, the dust removal equipment can move along with advancing of the working face of the coal mine, the production efficiency of coal mine production isimproved, and meanwhile the underground dust removal cost of the coal mine is reduced.

The invention discloses a liquid-phase circulation air purification device. The liquid-phase circulation air purification device comprises a columnar shell, the side face of the shell is provided with an air quality detection probe and a T-shaped air inlet, the top surface of the shell is provided with a control panel and two air outlets, air outlet baffle plates matched with the air outlets are arranged in the two air outlets, a cylindrical atomizing bin is arranged in the shell, an air inlet device is arranged on the side face, close to the air inlet, of the atomizing bin, an air draft device is arranged at the top of the atomizing bin, an air outlet of the air draft device is connected with an air exhaust pipe, the air exhaust pipe is a U-shaped pipe, openings of the two ends of the air exhaust pipe face upwards, the air outlet of the air draft device communicates with the bottom of the air exhaust pipe, and the openings of the two ends of the air exhaust pipe correspondingly communicate with the two air outlets in the top surface of the shell. The liquid-phase circulation air purification device has the advantages that purification air is fast in diffusion, the air disinfection is full and thorough, and an absorption liquid recovery function is achieved.

The invention relates to the technical field of book processing, and particularly relates to a purifier. The purifier comprises a fan, a machine body, at least one fixing device, at least one purifying device and a flow guide channel, wherein the fan is provided with an air inlet end and an air outlet end; the machine body is provided with a processing cabin, a cabin door suitable for sealing theprocessing cabin and an air outlet communicating with the processing cabin, and the processing cabin communicates with the air inlet end and the air outlet end; the at least one fixing device is arranged in the processing cabin and is suitable for fixing a to-be-purified object, and the air outlet is arranged close to the fixing device; the at least one purifying device is arranged in the processing cabin and is used for disinfecting and / or sterilizing the to-be-purified object; and the flow guide channel communicates with the air outlet and the air inlet end. The purifier does not exhaust airto the external environment.