191results about How to "Guaranteed purification efficiency" patented technology

The invention discloses an intelligent purification cabinet type fresh air ventilator. The intelligent purification cabinet type fresh air ventilator comprises a controller and a VOC (Volatile Organic Compounds) concentration sensor connected with the controller, wherein the VOC concentration sensor is arranged in an air return space; the controller is used for adjusting operating air velocities of an air blower and an exhaust fan in real time according to VOC concentrations detected by the VOC concentration sensor at a fixed time interval. Furthermore, the controller is also used for automatically obtaining outdoor air quality indexes periodically, and controlling the air blower and the exhaust fan, and when the outdoor air quality levels are serious pollution and severe pollution, the air blower and the exhaust fan are powered off. According to the intelligent purification cabinet type fresh air ventilator, the VOC concentration sensor, a humidity sensor and a plurality of temperature sensors are arranged inside a shell, so that the intelligent control of the complete machine is realized. The structure inside the shell is reasonably designed, and a three-stage purification device and a negative ion generator are arranged in an air supply channel, so that the quality demand on indoor air is met, and the purification efficiency of fresh air is ensured.

The invention discloses a device and a method for treating organic waste gas by catalysis and ozonation. The method comprises the following steps: (1) the organic waste gas is collected and enters a pretreater, the waste gas is pretreated and oil drops, particulate matter, acid etchant gas and fog drops in the waste gas are intercepted; (2) after the pretreated organic waste gas is pressurized by an induced draft fan, the organic waste gas enters the cold end of a heat exchanger to be preheated; (3) the preheated organic waste gas enters a catalytic oxidation device, the organic waste gas entering the catalytic oxidation device is warmed up and then is mixed with ozone fed into the catalytic oxidation device, and the mixed gas enters a catalytic oxidation reaction region of the catalytic oxidation device to be subjected to the catalytic oxidation reaction so as to remove organic pollutants; (4) the purified gas serving as a heat source enters the hot end of the heat exchanger in the step (2) to be subjected to heat exchange and the gas subjected to heat exchange is discharged by an exhaust pipeline. When being combined with the treatment device disclosed by the invention, the treatment method disclosed by the invention has a better purifying effect on the waste gas and not only ensures purifying efficiency of the waste gas, but also is energy-saving and environment-friendly.

The invention discloses a multifunctional indoor air refresher coupling purification and fresh air ventilation. The refresher comprises a box body, a fresh air inlet, a circulation air inlet, a pre-filtering assembly, a high voltage static assembly, a nano-catalysis assembly, a fan and an air channel, wherein the fresh air inlet and the circulation air inlet are arranged above the box body; air inlet ratio of the fresh air inlet to the circulation air inlet is controlled by an air quantity configuration regulator, and air from the two air inlets is combined and enters the air channel; the air channel is connected with the pre-filtering assembly; the exit of the pre-filtering assembly is in serial connection with the high voltage static assembly, the nano-catalysis assembly and the fan sequentially; and the air outlet is arranged below the box body. According to the invention, the problem of single function of a fresh air fan and an air purifier of prior art is overcome; quantity and ratio of fresh air and circulated air are regulated through the air quantity configuration regulator; either fresh air introduced from outdoor or indoor circulated air is subjected to in-machine purification, thereby ensuring that existing indoor impurities can be eliminated and at the same time the fresh air introduced from outdoor can be purified, and the purpose of clean and fresh indoor air is realized.

The invention relates to the water treatment field, and concretely relates to a multi-medium constructed wetland water treatment system and a treatment method thereof. The method comprises the following steps: adding sewage for treatment to enter an inlet water tank, and removing large floating materials and foreign materials in the sewage through a netted grating; allowing the obtained sewage to flow to shunting pipelines, controlling the sewage flow through a flow meter, and carrying out combination treatment by allowing the sewage to flow into a horizontal undercurrent wetland apparatus and / or a surface current wetland apparatus through the controlled closing of valves on the shunting pipelines according to the sewage concentration. The quality of water obtained after the treatment is good, the wetland purifying efficiency is increased, and the wetland obstruction is improved through the switching of the above wetland apparatuses by utilizing a combination treatment mode until the sewage for treatment is purified. The rapid switching of a single-stage wetland and a multistage wetland is realized through an ingenious valve design, so the pollutant concentration fluctuation problem of the sewage is effectively solved, and the adaptability and the application range of the wetland are improved; the running in a wetland unit switching mode is in favor of the wetland maintenance, prolongs the wetland life and effectively reduces the wetland obstruction phenomenon; and he system has a good removal effect on COD, ammonia nitrogen, nitrate nitrogen and total phosphorus in the sewage.

The invention relates to a low-pressure discharge plasma water treating apparatus, mainly comprising a discharge power supply, a high voltage electrode, a reactor, an atomization sprinkler, a water inlet pipe, a water outlet pipe, a water flow monitor, an air exhaust pipe, an air valve, a vacuum pump, a sewage pool and a clean water reservoir. According to the invention, without a water pump, a low pressure environment in the reactor can be maintained via only one vacuum pump under the condition that water flows through the reactor; electro-discharge is carried out in the low pressure environment, and large-volume, high-activity and non-thermal equilibrium plasma is generated; the treating apparatus can effectively remove pollution sources like heavy metal ions, organic matters and microbes in water, has high treatment efficiency, is generally applicable to sewages having different pollution degrees and produced by different industries and provides activated water for special industries. The invention further relates to a plasma water treating method which realizes low pressure discharge under the condition that a water cycle between the interior of the reaction chamber and the outside is maintained without usage of a forced exhaust type water pump. With the method, system energy consumption is greatly reduced.

The invention relates to a self-cleaning air purifier. With a motor driving a first cam to shake a filter screen, dust on the surface of the filter screen is shaken off into a dust collecting groove. With a motor driving a second cam to drive a brush holder, the brush holder drives a brush to move, and dust on the filter screen is swept into the dust collecting groove. Through self-shaking of the filter screen and with the brush brushing the filter screen, dust on the filter screen can rapidly fall into the dust collecting groove. While the first cam drives the filter screen to ascend, the second cam drives the brush to descend. With the filter screen and the brush moving opposite to each other, the brush sweeps dust on the filter screen more easily. With a pneumatic slide block driving the brush to move in the length direction of a filter, each part of the filter can be cleaned by the brush. Thus, cleaning quality is guaranteed. According to the invention, manpower is saved, dust on the filter screen can be cleaned timely, and purification efficiency and purification quality of the air purifier are guaranteed.

The invention discloses a production method of high-adsorptivity melt-blow non-woven fabrics. The production method comprises the production steps that (1), formaldehyde removal particles and activated carbon particles are stirred and mixed evenly according to the mass percent of (25-75%):(75%-25%) to obtain annexing agent materials; (2), macromolecule granules and an assisting agent of non-woven fabrics with the weight percent being 25:(0.4-1.6) are mixed and stirred evenly, melt spinning is carried out through a melt-blow method, the mixture is evenly mixed with the annexing agent materials in the step (1) before net formation, and the high-adsorptivity melt-blow non-woven fabrics are obtained by the utilization of air currents or mechanical net formation. The formaldehyde removal particles comprise potassium permanganate, platinum powder, manganese acetate, sodium hydroxide, activated aluminum oxide and titanium dioxide all of which the mass percent is 1:(0.01-0.05):(0.5-1.0):(1-2):(0.3-0.8):(1-3). The formaldehyde removal particles in the non-woven fabrics can capture target molecules and make contact with active constituent in the non-woven fabrics to generate the chemical adsorption reaction, and the formaldehyde removal rate is extremely high.

The invention discloses a fluidized bed type organic exhaust purification method and device to solve the problems of the existing organic exhaust purification technology that processes are complicated, cost is high and efficiency is low. The method comprises the steps of adsorption and desorption. The device comprises an adsorption chamber and a desorption chamber, wherein an exhaust inlet is formed in one side of the adsorption chamber, a purified tail gas outlet is formed in the other side of the adsorption chamber, an adsorption medium moving downwards is arranged in the adsorption chamber, the desorption chamber is located below the adsorption chamber, the adsorption medium falls into the desorption chamber from the adsorption chamber, a carrier gas inlet is formed in one side of the desorption chamber, a carrier gas is formed in the other side of the desorption chamber, and a desorption device is arranged in the desorption chamber. According to the fluidized bed type organic exhaust purification method and device, technology and structure are simple, operation is convenient, exhaust purification cost can be effectively reduced, and exhaust purification efficiency can be improved.

The invention relates to a metal carrier three-way catalyst with high performance and the manufacturing method. The method comprises metal carrier treatment, overlaying coating method and active component inducting so on. Technological characteristics are that 1, large surface area of coat can be maintained at the largest extent so as to provide good conditions for chemical reaction; 2, active components of expensive metal is distributed in uniformity so that it is favor of bringing into play the catalytic performance of expensive metal and the dosage of expensive metal is decreased and under the precondition of ensuring tail gas purified ratio the producing and using cost is decreased; 3, the process flow is short so as to arrange production in convenience; 4, there is few quality control points so as to operate and control easily.

The invention provides an air conditioning device control method, a device and an air conditioning device. According to the air conditioning device control method, the device and the air conditioningdevice, an indoor unit of the air conditioning device is provided with an air outlet, an air passage communicating with the air outlet is internally provided with an air fan and a purifying unit for purifying air flow output by the air fan, and air outlet is further provided with a first sensor for detecting the air speed. The method comprises the steps that the first sensor is controlled to detect the air outlet speed of the air flow after passing through the purifying unit; the air quantity or the air speed loss quantity of the purifying unit is confirmed according to the difference value between the air outlet speed and the reference air speed; and the rotating speed of the air fan is adjusted according to the loss quantity. By means of the air conditioning device control method, the fact that the rotating speed of the air fan is adjusted automatically according to the air quantity or the air speed loss quantity can be realized, adjustment of the purifying air quantity can be realized, and the purifying efficiency and effect are guaranteed; and in addition, the rotating speed of the air fan changes along with change of the loss quantity, occurrence of the situation of high energy consumption caused by the air fan running at a high rotating speed all the time can be avoided, and the energy consumption can be effectively reduced.

The invention discloses a prompting message sending method and device and belongs to the field of smart homes. The method comprises receiving opening and closing states of a door and window corresponding to a door and window sensor; obtaining the operation state of an air purifier bound with the door and window sensor when the door and window corresponding to the door and window sensor is in a close state; detecting whether the operation state of the air purifier is in an on state; sending prompting information in accordance with a preset mode when the operation state of the air purifier is in an on state, wherein the prompting information is used for indicating that the door and window of the room of the air purifier should be closed or the air purifier should be turned off. By means of the method and the device, the prompting information is set to be sent on the network side when the air purifier is in the operation state and the door and window of the room is open, the problem of low purification efficiency of the air purifier caused by the opening of the door and window is solved, and the purification efficiency of the air purifier can be guaranteed.

The invention relates to the field of cultivation, in particular to a ventilation system of a pigsty and the pigsty using the ventilation system. The pigsty is provided with the ventilation system and is closed. The ventilation system comprises an air inlet pipeline and an air exhaust pipeline, wherein the air inlet pipeline is used for supplying air to the pigsty; the air exhaust pipeline is used for exhausting the air from the pigsty; an air filtering and purifying device is arranged on the air inlet pipeline. The pigsty is closed, the ventilation system comprises the air inlet pipeline and the air exhaust pipeline, the air inlet pipeline is used for supplying the air to the pigsty, and the air exhaust pipeline is used for exhausting the air from the pigsty, so that the air which is purified by the air filtering and purifying device can be supplied into the pigsty through the air inlet pipeline in the cultivation process of pigs, and meanwhile, the air exhaust pipeline is formed as an air exhaust point of the pigsty; by setting the positions of the air inlet pipeline and the air exhaust pipeline, the air can pass through the pigsty along a set path and then is exhausted, so that the refreshing dead corner of the air can be reduced, and the refreshing efficiency of the air in the pigsty is improved.

The invention discloses an air purifier control method and terminal and a computer readable storage medium. According to the air purifier control method, the indoor air data and the sleep state data of the user are acquired according to the preset acquisition rules; and the blower power of the air purifier is controlled according to the indoor air data, the sleep state data and the preset wind control rules so as to adjust the wind speed of the air purifier. The blower power of the indoor air purifier is controlled according to the concrete change situation of the indoor air data or the sleepstate data, i.e. the size of the working wind speed of the air purifier is adjusted in real time according to the actual air data and the actual sleep situation of the user so that operation of the air purifier can be automatically optimized under the unattended condition, the purification efficiency can be guaranteed, the user experience can be enhanced, and the technical problem of low purification efficiency of the conventional air purifier in the sleep mode can be solved.

The invention discloses a honeycomb electrostatic air purifier with an automatic cleaning function. The honeycomb electrostatic air purifier comprises a honeycomb pipe, and an electrode rod arranged in the honeycomb pipe; the honeycomb pipe includes a first honeycomb pipe and a second honeycomb pipe; the second honeycomb pipe is sleeved in the first honeycomb pipe through sliding up and down on the inner side of the first honeycomb pipe; an insulated oil scraping ring is arranged in the first honeycomb pipe at the bottom end of the first honeycomb pipe; the outer diameter of the oil scraping ring is not larger than the inner diameter of the second honeycomb pipe; connecting rods are arranged on two sides of the oil scraping ring; and one ends of the connecting rods are fixed with the oil scraping ring, and the other ends are fixed with an opening at the top of the first honeycomb pipe. The purifier can remove attachment layers attached on the inner walls of the first honeycomb pipe and the second honeycomb pipe at any time, such as oil stains and dust; and the purifier is simple in structure and high in cleaning efficiency, and greatly guarantees the lampblack purifying treatment efficiency.

The invention belongs to the technical field of purifying equipment, particularly relates to a consumable-free air purifier for purifying indoor air, and solves the technical problems of unreasonable design and the like in the prior art. The consumable-free air purifier comprises a shell which is provided with an air purifying passage. A pre-positioned filter net, an electrostatic adsorption module, a plasma purifying module, an anion generating module, a ceramic activated carbon device, a humidifying device and a negative pressure source are arranged in the air purifying passage vertically in sequence. A bypass hole at an indoor air inlet end of the air purifying passage is formed in the shell and communicated with the air purifying passage. A bypass air sampling device for collecting the indoor air in real time is arranged in the bypass hole. When the negative pressure source is opened, the indoor air is enabled to enter the air purifying passage via the bypass hole after passing the bypass air sampling device under the action of the negative pressure source. The bypass hole is formed in a lateral portion of the air purifying passage and disposed between the pre-positioned filter net and the electrostatic adsorption module. The consumable-free air purifier for purifying the indoor air has the advantage of good practicability.

The invention relates to the technical field of organic waste gas treatment, and discloses an organic waste gas treatment system. The organic waste gas treatment system comprises a pretreatment system, a tail gas adsorption system, a nitrogen desorption system and a solvent refining system, wherein the pretreatment system comprises a surface air cooler (2) and a filter (3) which are sequentially communicated; the tail gas adsorption system comprises an activated carbon particle adsorber (4); the nitrogen desorption system comprises a heat exchanger (5), a heater (6), a desorption fan (7), a nitrogen buffer tank (8), a condenser (9), a gas-liquid separator (10) and a solvent buffer tank (11); and the solvent refining system comprises a mixed solvent pump (12), a high gravity rectification device (13), a molecular sieve dehydration tank (14) and a refined solvent storage tank (15) which are sequentially communicated. The invention also discloses an organic waste gas treatment and solventrecovery technology. The water content of an organic solvent obtained after using heated nitrogen as a desorbing agent, high-boiling point organic waste gas can be recovered, and nitrogen can be directly recycled to reduce the energy consumption.

The present invention discloses a vertical-typed static smoke purification device, which adopts the structure combining the stuffing water bath and the static way, and can reduce the volume, and has high purification efficiency, and can instantly collect the waste oil to be effectively separated from the water, and can effectively reduce the fire hidden problem, and is convenient to be maintained. A plurality of paralleling narrow-distance honeycomb cylindrical electric fields is arranged on the upper layer inside a shell of the vertical-typed static smoke purification device; each row of the narrow-distance honeycomb cylindrical electric fields is provided with an examination small door and a front-built electric box; water-bloom-separation ceramic stuffing is arranged at the middle layer inside the shell; water-bath ceramic stuffing is arranged at the lower layer inside the shell; a row of horizontal spraying rods is arranged between the middle layer and the lower layer inside the shell; a water tank and a pump are arranged at the lower part of the shell; the row of the spraying rods is connected with the pump through a pipe; an oil-water separator is arranged at one side on the upper part of the water tank; a stuffing door is respectively arranged at the front outer side of the middle layer and the lower layer of the shell.

The invention discloses an organic waste gas treatment system. The organic waste gas treatment system comprises at least two activated carbon adsorption boxes connected in parallel, first gas inlet pipelines are arranged at the bottoms of the activated carbon adsorption boxes, valves A are arranged on the first gas inlet pipelines, adsorption fans are connected to the tops of the activated carbonadsorption boxes through purification pipelines, and valves B are arranged on the purification pipelines. The top of each activated carbon adsorption box is connected with catalytic combustion equipment through a desorption pipeline, a valve C is arranged on each desorption pipeline, catalytic combustion equipment is connected with a desorption fan, the desorption fan is connected to the bottoms of the activated carbon adsorption boxes through hot air pipelines, a valve D is arranged on each hot air pipeline, and an air supplementing pipeline is arranged between each valve D and the desorptionfan; a second air inlet pipeline is further arranged at the top of each activated carbon adsorption box, a valve E is arranged on each second air inlet pipeline, and the negative pressure of the second air inlet pipeline is higher than that of the first air inlet pipeline. The problem that waste gas emission does not reach the standard due to the fact that adsorption efficiency of activated carbon which is just desorbed is low is solved.

The invention discloses a high-voltage power supply capable of automatically changing polarity. The high-voltage power supply consists of a direct current power supply circuit, a direct current constant voltage power supply circuit, a filter and energy storage circuit, a timing circuit, a control pulse generator circuit, a pulse transformer, a working indicator circuit, a switching circuit and a high-voltage electrode, wherein the timing circuit generates a first timing signal time interval and a second timing signal time interval; a switch between the pulse transformer and the filter and energy storage circuit is switched when the two time intervals are switched, so that the polarity of output voltage of the pulse transformer is changed; the control pulse generator circuit generates a pulse signal and applies the pulse signal to the switching circuit; the switching circuit is controlled to be connected when pulse comes and cut off when the pulse ends; and thus the corresponding high-voltage pulse voltage signals with reverse polarities in the first timing signal time interval and the second timing signal time interval are formed on the high-voltage electrode.

The invention relates to an automatic air purification system adopting an electrostatic dust collection technology. The automatic air purification system comprises a purification device, the purification device comprises a base, an operation panel, a cleaning mechanism, a ventilation pipe and two gas-guiding pipes, the gas-guiding pipes are sequentially and internally provided with electric heating wires, dust collection nets and generation nets, the cleaning mechanism comprises a storage box, a water pump, a water delivery pipe, a drainage pipe, a cleaning box and two lifting assemblies, a ventilation mechanism comprises a rotating shaft, a round disc, a driving assembly, two sleeve pipes and two fan blades, the driving assembly comprises a first motor, an adjusting unit and a driving block. According to the automatic air purification system adopting the electrostatic dust collection technology, the air flow direction can be changed through the ventilation mechanism, thus the two gas-guiding pipes are correspondingly used for air suction and exhausting, the air flow rate is controlled, the excessive ozone concentration in the air is avoided, in addition, the dust collection nets can be cleaned through the cleaning mechanism, thus the duct collection nets are recovered and dredged, the air purification efficiency is ensured, and the practicability of the air purification systemis improved.

The invention relates to a vortex solidification underground water remediation system. The vortex solidification underground water remediation system is arranged in an underground water to-be-remediated area, and comprises a pumping well, water injection wells and fences. The pumping well is formed in the center of the to-be-remediated area, the multiple water injection wells are arranged at intervals along the outer contour line of the to-be-remediated area, an inorganic inert adsorption material is injected into the water injection wells, and the closed adsorption material fences are formedon the outer side of the to-be-remediated area, wherein the adsorption material fences have good water permeability, and the height of the fences is at least equal to the covering depth of polluted underground water. By performing large-drawdown pumping on the pumping well and large-flow reinjection on the water injection wells, a cone of depression is formed, and after the adsorption material adsorbs pollutants in the underground water, the pollutants are degraded and solidified, gather towards the pumping well group along with the migration of the underground water and then are pumped to thesurface through the pumping well group for surface treatment and purification. The vortex solidification underground water remediation system has the advantages of small pumping amount, short cycle and large treatment range.

The invention discloses a rotary valve structure of regenerative thermal oxidizer (RTO) equipment. The rotary valve structure comprises a valve body of a single-layer cylindrical structure and a center shaft longitudinally arranged in the center of the valve body. The top and the bottom of the valve body are opened. An opening in the top of the valve body is partially sealed through a fan-shaped top plate connected with the center shaft. An opening in the bottom of the valve body is partially sealed through a fan-shaped bottom plate connected with the center shaft. A plurality of vent holes are formed in the side surface of the valve body. Since the center shaft connected with the top plate and the bottom plate is arranged, the rotary valve structure is simplified, and manufacturing and mounting are facilitated; all cavities are reasonably arranged and mutually partitioned, so that air outputs of all the cavities are uniform; and through a purging device additionally arranged, treated waste gas can be blown out of the RTO equipment, and the purification effect and stable operation of the equipment are guaranteed.

The invention relates to a vertical multistage AO ecological sewage treatment system. The vertical multistage AO ecological sewage treatment system is characterized in that sewage is orderly treated by a coarse screen, a lifting pump house, a fine screen, a grit basin, a vertical multistage AO ecological tank, a cloth filter tank and a UV disinfection canal and then is discharged by a standard discharge opening, and sludge produced by the fine screen, the grit basin, the vertical multistage AO ecological tank and the standard discharge opening is transferred into a sludge storage tank, then is treated in a dehydration machine room and can be carted. The treatment system has less sludge amount (of sludge-drainage time of 20-25 years), does not produce odor, realizes thorough removal of organic matters, provides a carbon source produced in sludge stabilization for denitrification demands, reduces an external carbon source, produces water satisfying first-grade standard A or B, can be used for construction of an ecological landscape park, has the advantages of less construction investment and short construction period, can utilize waste and old or existing pits, ponds, trenches and slopes, and has a construction period of 4-6 months.

The invention discloses waste gas purification equipment for atmosphere pollution treatment. The waste gas purification equipment comprises a gas inlet tank and a main tank body, wherein the top of the inner wall of one side of the gas inlet tank is communicated with the bottom of the inner wall on one side of the main tank body through a connecting tube; a one-way valve is in threaded connectionwith the connecting tube; a gas inlet tube is arranged at the bottom of the inner wall of one side far away from the connecting tube, of the gas inlet tank; a gas sucking head is arranged at one end far away from the gas inlet tank, of the gas inlet tube; a gas sucking pump is arranged at one end close to the gas sucking head, of the gas inlet tube; a discharge hole is formed in the bottom insidethe gas inlet tank; a discharge valve is in threaded connection inside the discharge hole; a filtering net is fixedly inserted into the gas inlet tank; an activated carbon adsorption net is arranged above the filtering net. Due to adoption of multiple waste gas purification mechanisms, while waste gases are purified by using the device, a relatively good treatment effect can be achieved, relatively rapid speeds can be achieved, and thus the waste gas purification efficiency can be ensured.

A fertilizer producing exhaust gas dedusting device comprises a shell and an inner space thereof, wherein a water curtain deduster and a plurality of swirlers distributed on the periphery of the water curtain deduster are arranged inside the shell; a liquid draining opening of the water curtain deduster is connected to a raw material recycling pipeline; the shell comprises an outer wall, an inner wall, and a cavity defined by the outer wall and the inner wall; an inlet and an outlet which can be communicated with the cavity are formed in the outer wall; the outer wall is a heat-insulating layer; the inner wall is a heat-conducting layer; molasses alcohol fermentation broth is communicated with the inlet, is heated through heat radiation of high-temperature gas, flows out from the outlet, and is conveyed to a liquid spraying device of the water curtain deduster through a diversion pipe. The fertilizer producing exhaust gas dedusting device is energy-saving, reasonable in design and easy to popularize.

The invention discloses an air humidifying purifier with a filter element capable of being automatically replaced. The purifier comprises a box body, the left end and the right end of the box body arerotatably connected with an axle internally provided with a motor, the other end of the axle is fixedly connected with a wheel, an element replacing mechanism used for purifying air is arranged in the box body, and comprises two air inlet cavities which are up and down symmetric, pipelines with leftward openings and communicating with the air inlet cavities are formed in the left inner walls of the air inlet cavities, air pumps are fixedly connected into the pipelines, and the air humidifying purifier is simple in structure, convenient to use and capable of self moving, air is subjected to comprehensive humidifying purifying, the filter element can be automatically replaced, the phenomenon that due to the fact that the filter element is not replaced for a long time, the purifying effect is affected is avoided, in the filter element replacing process, work is not affected, the purifying efficiency is ensured, the purified air can be further humidified, and the air is prevented from being too dry.

The invention discloses an anti-blocking type rotor wing heat accumulating type combustion device. The anti-blocking type rotor wing heat accumulating type combustion device comprises a combustion chamber arranged at the top of a sealing shell, a heat accumulating layer in the middle and a rotary valve at the bottom. The combustion chamber communicates with the heat accumulating layer. A combustor used for improving the temperature of the combustion chamber is arranged in the combustion chamber. The combustion chamber communicates with a waste gas inlet pipeline through a preheating pipeline. The waste gas inlet pipeline communicates with a waste gas cavity. The waste gas cavity communicates with the heat accumulating layer through a waste gas channel on the rotary valve. The combustion chamber communicates with the waste gas inlet pipeline through the preheating pipeline, the waste gas inlet pipeline communicates with the waste gas cavity, the preheating pipeline used for preheating waste gas is additionally arranged at the waste gas front end, and therefore organic volatile matter in the waste gas is prevented from being condensed before entering a furnace body; and an electric heating mechanism is additionally arranged on the rotary valve, and therefore the waste gas is in temperature rise all the time when entering the valve, and heat accumulating brick blocking caused by condensation is avoided.

The invention discloses an air purification device. The air purification device comprises a shell, a high-voltage electrostatic dust removal unit and an air blower; the dust removal unit comprises an ionization unit and a dust collecting unit located at a downstream position of the ionization unit; a first gap and a first working voltage are set between the positive electrode and the negative electrode of the ionization unit, wherein the first working voltage is set to be capable of ionizing particles in air passing through the ionization unit, and the first gap is set to be not less than the insulation distance of the air and enable the ionized particles to pass through the ionization unit; and a second gap smaller than the first gap and a second working voltage smaller than the first working voltage are set between the positive electrode and the negative electrode of the dust collecting unit, wherein the second gap and the second working voltage are set to enable the ionized particles to be adsorbed on the electrodes of the dust collecting unit so as to achieve the dust removal function. According to the air purification device, the purification efficiency can be ensured, and the generation amount of ozone can be minimized. The invention further discloses an air purification method.