310 results about "Photocatalysis" patented technology

The invention discloses a system for removing ammonia gas and hydrogen sulfide in water-soaked manure sewage, and relates to the technical field of pig farm sewage deodorization treatment. The invention discloses a system for removing ammonia gas and hydrogen sulfide in water-soaked manure sewage. The system comprises an air-water ratio self-absorption system, a photosynthetic oxygen self-production system and a double-sided binary deodorization system, wherein the air-water ratio self-absorption system is built above a sewage storage tank; and the photosynthetic oxygen self-production system and the double-sided binary deodorization system are built in the air-water ratio self-absorption system. The invention develops a system for removing ammonia gas and hydrogen sulfide in water-soaked manure sewage, and the system is based on the characteristics of sewage and the dissolution and discharge rule of odor, combines a coating type photocatalyst and negative oxygen ion deodorization technology, integrates the photosynthetic oxygen production capacity of chlorella, and considers the factors of illumination and non-illumination, so that the water-soaked manure sewage treatment efficiency is improved, and the water-soaked manure sewage treatment efficiency is improved. According to the system disclosed by the invention, the interaction relationship among all factors is systematically researched, so that the effects of quickly removing and improving the deodorization efficiency can be achieved, and the framework structure constructed by the system is low in cost, easy to carry and reusable.

The utility model discloses a stain-resistant polyester fabric, comprising: a stain-resistant layer, an antibacterial layer, a light-shielding layer and a formaldehyde-removing layer which are compounded in sequence; the stain-resistant layer is interwoven with antistatic yarn as warp yarn and celis biodegradable fiber yarn as weft yarn; three-proof finishing agents are attached to the surface of the antistatic yarn and the celis biodegradable fiber yarn; the light-shielding layer is interwoven with black full-dull polyester fiber filaments; the formaldehyde-removing layer is interwoven with polyester network yarn as warp yarn and photocatalyst fiber yarn as weft yarn. Based on the stain-resistant polyester fabric of the utility model, when used to make curtains, the stain-resistant layer has excellent performances in waterproofing, oil resistance, liquid stain resistance and solid stain resistance, and the antibacterial layer has the function of inhibiting the reproduction of bacteria and fungi. The light-shielding layer uses black full-dull polyester fiber filaments to reduce the amount of light transmitted, thereby improving the light-shielding performance of the fabric, and the formaldehyde-removing layer can effectively decompose formaldehyde under light conditions to improve indoor air quality.

The utility model discloses a photocatalyst sterilization module which is high in photocatalyst adhesive force, high in surface density, not easy to fall off, continuous and effective in sterilization and good in air purification effect. The fan (3) is used for introducing external air into the photocatalyst sterilization module and finally exhausting the external air outwards so as to form air circulation inflow and outflow; photocatalyst microparticles are stacked on the surface of the photocatalyst filter screen (6), and the photocatalyst filter screen (6) is used for filtering and intercepting particulate matters, bacteria and virus microorganisms in the air, decomposing water and oxygen in the air through a photocatalyst to form active oxygen and hydroxyl free radicals, and further decomposing bacteria, viruses, formaldehyde and TVOC organic matters in the air into water and carbon dioxide; the ultraviolet light source assembly is used for activating photocatalyst microparticles on the surface of the photocatalyst filter screen (6) and directly killing bacteria and viruses intercepted by filtration, and the photocatalyst microparticles are sprayed on the surface of the photocatalyst filter screen (6) and then are fixed through sintering.

The utility model discloses a combined air-conditioning unit, which relates to the technical field of air conditioning, and includes a shell, a fan arranged in the shell, a heat exchanger and an air purification device. The air purification device is arranged in the shell, and is composed of a plurality of purification modules, so that the overall size of the air purification device is adapted to the inner cavity size of the shell; the purification module includes a module frame, a filter assembly arranged in the module frame in sequence along the air flow direction, an electrostatic adsorption assembly, an ultraviolet light source assembly, a photocatalyst assembly and a negative ion generator. In the above-mentioned combined air-conditioning unit, the air purification device is composed of a plurality of purification modules, which can adapt to the shells of combined air-conditioning units of different specifications; at the same time, the air purification device can significantly reduce the dust in the air by combining the filter assembly and the electrostatic adsorption assembly, and can effectively reduce the bacterial content in the air by photocatalysis, further improving the negative ion generation efficiency and improving the purification effect.

The utility model relates to the field of fireproof coating processing, in particular to a multifunctional reaction kettle for fireproof coating processing, which comprises a reaction kettle body, the top of the reaction kettle body is connected with a top cover through a bolt, and the top of the top cover is connected with a support frame through a bolt. Through cooperation of the driving motor, the stirring plate, the rotating rod, the L-shaped rod, the scraping plate and the auger blade, the reaction kettle has the advantage of being capable of lifting and stirring materials, the driving motor drives the rotating rod to rotate, and the auger blade rotates to lift the materials accumulated at the bottom in the reaction kettle body; the L-shaped plate drives the stirring plate to rotate to stir the materials, so that the stirring plate can fully stir the materials in the reaction kettle body; and through cooperation of an air suction pipe, a purification box, a negative pressure fan, an activated carbon net plate, a photocatalyst net plate, an ultraviolet lamp and a mounting base, the beneficial effect that generated harmful gas can be treated is achieved.

The invention relates to a lasting antibacterial photocatalyst particle and a preparation method thereof, and the preparation raw materials of the lasting antibacterial photocatalyst particle comprise the following components in parts by weight: 10-15 parts of butyl titanate, 5-10 parts of tetraethoxysilane, 1-2 parts of a rare earth compound, 8-15 parts of a silane coupling agent, 250-280 parts of absolute ethyl alcohol, 5-10 parts of industrial hydrochloric acid and 5-10 parts of deionized water. According to the photocatalyst particles, titanium dioxide serves as a core body, silicon dioxide serves as a shell layer, the silicon dioxide shell layer is of a mesoporous structure, and rare earth elements are distributed between the titanium dioxide core body and the silicon dioxide shell layer. Through the synergism of the titanium dioxide core, the porous silicon dioxide shell and the rare earth elements distributed between the core and the shell, the photocatalyst particles have the excellent effects of lasting and efficient antibacterial property and high stability.

1. The name of the product of this design: packaging bottle (4L photocatalyst V04). 2. Purpose of the product of this design: used to hold liquids. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.

A lung cancer cell culture tank with an ozone sterilization function belongs to the field of biotechnology and cell culture equipment, and is characterized in that a sealing door (2) is arranged at the front part of a tank body (1), a 8W UVC ultraviolet lamp tube (3) is mounted at the top in the tank, and a nano titanium dioxide photocatalyst coating is sprayed on the inner wall of the tank body to form an ultraviolet sterilization and ozone management module; the tank bottom wall (18) is provided with a semiconductor chilling plate (5) and a temperature sensor (6); an air filter (7) with a 0.22 mu m hydrophobic filter membrane is arranged at the upper part of the rear wall (11) of the tank body; the semiconductor chilling plate (5), the temperature sensor (6) and the air filter (7) jointly form a cell culture environment maintaining system; a glove hole (4) is formed in the center of each tank body side wall (12) and is connected with an operation glove (17) through a telescopic sleeve (16); the control panel (8) is located on the front face of the tank body. The invention has the advantages of simple manufacture, convenient use, low cost and obvious effect.

The utility model discloses an indoor photocatalyst formaldehyde eliminating device and relates to the technical field of air purification. Comprising a lower machine body and an upper machine body, the rear side of the lower machine body is hinged to the upper machine body through a hinge, a rectangular sealing ring is arranged at the joint of the lower machine body and the upper machine body, a plane lock is installed on the front side of the lower machine body, the lower machine body is in locking connection with the upper machine body through the plane lock, and a filter element support is installed in the lower machine body. According to the indoor photocatalyst formaldehyde eliminating device, the lower machine body and the upper machine body are hinged through the hinge, locked together through the plane lock and hermetically connected through the rectangular sealing ring, the plane lock is simple and efficient in arrangement, and in the maintenance and repair process, the indoor photocatalyst formaldehyde eliminating device is convenient to use. A user can easily open and close the purifier only by rotating a key or operating a handle, the filter element can be conveniently taken out of the lower purifier body to be cleaned or replaced, operation time and energy can be saved, and great convenience is brought to later maintenance work of the purifier.

The drying device with the deodorization function comprises a shell, a drying assembly and a deodorization assembly, a drying air duct and a deodorization air duct are arranged on the shell, a hot air outlet of the drying assembly is communicated with the drying air duct, and the deodorization assembly is arranged in the deodorization air duct; the deodorization assembly comprises a photocatalyst assembly and a fan, a deodorization air outlet is formed in one end of the deodorization air duct, the fan is installed at the other end of the deodorization air duct, and the photocatalyst assembly is installed between the deodorization air outlet and the fan so that photocatalyst factors generated by the photocatalyst assembly can be blown out of the deodorization air outlet through the fan. The non-inductive deodorization device is high in deodorization efficiency, low in noise in the operation process, capable of achieving non-inductive deodorization, capable of greatly improving the experience of followers, free of material consumption and long in service life.

The invention discloses an energy-saving environment control system for cultivating low-carbon-dioxide valuable and rare bacteria, and relates to the technical field of fungus cultivation equipment. A multi-gear frequency conversion fan is arranged in a power cabin, an HEPA filter screen and an activated carbon layer are sequentially arranged in a filter cabin, a spiral water-cooling coil pipe and a wet curtain device are arranged in a cooling cabin, an ultraviolet lamp and a photocatalyst coating are arranged in a disinfection cabin, and a fin type heat exchanger and a phase change energy storage module are arranged in a heat recovery cabin; the dynamic ventilation pipeline comprises a main air duct which is telescopic and heat-insulating, an electric air valve array is arranged at the tail end of the dynamic ventilation pipeline, a bypass mechanism is provided with a bypass pipeline and a switching valve, and air ports are formed in the tail ends of a plurality of branches; the monitoring and control unit comprises a PLC (Programmable Logic Controller) and is electrically connected with a temperature and humidity sensor, a CO / O concentration sensor, a wind speed sensor, an air quality sensor, a built-in timer and a logical operation module; precise control over the cultivation environment of the rare bacteria and efficient utilization of heat energy are achieved.

The invention provides a wet response directional self-cleaning down-proof fabric, a preparation method thereof and a down feather product, the preparation method of the wet response directional self-cleaning down-proof fabric comprises the following steps: S1, adding polyester polyurethane and microcapsules into an organic solvent to obtain a spinning solution; the microcapsule comprises a photocatalyst and a shell layer wrapping the photocatalyst, the shell layer comprises a component A and a component B, the component A comprises at least one of gelatin, Arabic gum, carrageenan and starch, and the component B comprises calcium alginate; s2, a knitted fabric serves as a receiving substrate, the spinning solution is subjected to electrostatic spinning, drying and hot pressing, the knitted fabric contains cellulose fibers, and the mass percentage content of the cellulose fibers in the knitted fabric is larger than 50%. The down-proof fabric capable of conducting moisture in one direction can be prepared, moisture of a quilt is accumulated on one side of the nanofibers in the using process, the self-cleaning function is triggered in the moisture accumulation state, and the down-proof fabric has the advantages of being breathable and soft.

This invention belongs to the field of composite material preparation technology, and provides an antibacterial activated carbon-silver ion composite photocatalyst and its preparation method. First, a nitrogen-doped titanium dioxide composite carbon dot core material is prepared using a hydrothermal method and high-temperature calcination, with titanium source, nitrogen source, and self-made carbon dots as raw materials. The core material is then surface-modified using a mercaptosilane coupling agent, and nano-silver is loaded in situ onto its surface via chemical reduction to obtain a multifunctional nanopowder. Simultaneously, activated carbon undergoes surface oxidation and amination treatment, and is grafted with the active ester polyethylene glycol maleimide, thereby constructing specific reaction sites on the activated carbon surface. Finally, the multifunctional nanopowder is covalently bonded to the activated carbon carrier surface using the Michael addition reaction between maleimide and mercapto groups. The resulting composite powder is then mixed with a dispersion medium and functional additives to obtain the antibacterial activated carbon-silver ion composite photocatalyst.

The invention relates to a flexible light source and photocatalyst collaborative purification cabin device, which comprises an electroluminescent module configured to emit visible light to realize cabin atmosphere illumination; and the photocatalyst module is arranged on a light irradiation path of the electroluminescent module, and an absorption spectrum of the photocatalyst module is matched with an emission spectrum of the electroluminescent module. The excitation wavelength of the photocatalyst is expanded from ultraviolet light to a visible light region, and the flexible electroluminescent fibers with matched spectrums are adopted as a synergistic excitation source, so that the same beam of visible light can be used as an atmosphere light source to be perceived by human eyes to meet the requirement of visual comfort on one hand, and can be used as an excitation light source to activate the photocatalyst on the other hand to meet the requirement of visual comfort on the other hand. The health purification function is achieved, the problems that in the prior art, purification and illumination are mutually contradictory in spectrum requirements and are mutually independent in system structure are fundamentally solved, and collaborative linkage of vision and smell is achieved.

The utility model discloses a photocatalyst sterilization assembly for an air purifier. The photocatalyst sterilization assembly comprises a shell of the photocatalyst sterilization assembly, an air inlet is formed in the upper end of the shell, an air outlet is formed in the lower end of the shell, a cylindrical photocatalyst carrier is installed in the shell, and a light source belt is installed on the inner wall of the shell and surrounds the photocatalyst carrier; an air inlet plate is installed in the air inlet in a threaded mode, an air outlet plate is installed in the air outlet, a flow guide plate is arranged on the inner wall of the shell, the flow guide plate is arranged in a spiral shape, and the cylindrical photocatalyst carrier is inserted into the center of the spiral flow guide plate. The cylindrical photocatalyst carrier is arranged in the shell, so that the flowing distance and the retention time of air in the shell are greatly increased, and the air can have more time to be in full contact with the cylindrical photocatalyst carrier, so that the decomposition and killing effects of the photocatalyst on harmful substances such as bacteria in the air are improved, and the overall sterilization efficiency of the equipment is improved.

The utility model relates to the technical field of photocatalyst production, in particular to a photocatalyst solution production device which comprises a stirring barrel, an inner barrel is coaxially arranged in the stirring barrel, the inner barrel is vertically arranged, and the upper end and the lower end of the inner barrel are communicated; the solution production device further comprises a stirring paddle arranged in the inner cylinder and a transmission mechanism used for driving the stirring paddle to rotate. According to the utility model, photocatalyst material sediments or agglomerated particles which do not penetrate through the filter plate are pushed to ascend to the upper part of the inner cylinder along with the filter plate in the ascending process of the filter plate, and then the filter plate is driven to quickly descend by matching with the piston rod; and the stirring paddle is arranged in the inner cylinder, so that photocatalyst material precipitates or agglomerated particles are positioned above the inner cylinder, and the stirring paddle continuously stirs the interior of the inner cylinder to scatter the photocatalyst material precipitates or agglomerated particles, thereby effectively avoiding the phenomenon that the material precipitates or agglomerated particles possibly appear in a conventional stirring mode.

The utility model discloses an indoor microorganism disinfection and purification system which comprises a shell, the shell is provided with an air inlet and an air outlet, the shell is provided with a purification device, a disinfection device and a centrifugal fan, and the purification device, the disinfection device and the centrifugal fan are sequentially arranged in the airflow direction; the disinfection device comprises a photocatalyst layer and a plurality of ultraviolet lamp tubes, and the photocatalyst layer and the ultraviolet lamp tubes are sequentially arranged in the direction from the air inlet to the air outlet. The disinfection device is composed of a photocatalyst layer and a plurality of ultraviolet lamp tubes, under ultraviolet irradiation, the photocatalyst layer can generate hydroxyl free radicals and superoxide anion free radicals with strong oxidizing property, and the free radicals can be rapidly subjected to oxidation-reduction reaction with bacteria, viruses, formaldehyde and other harmful microorganisms and organic pollutants in the air, so that the disinfection effect is achieved. The cell structure or molecular chain is destroyed and decomposed into harmless substances such as carbon dioxide, water and the like, so that the purposes of disinfection and purification are achieved.

The utility model discloses a photocatalyst air disinfection module which comprises a shell with an inner cavity, an excitation light source and a disinfection module, the excitation light source and the disinfection module are arranged in the shell, the shell is provided with an air inlet and an air outlet which are communicated with the inner cavity, the disinfection module comprises a fan and a plurality of groups of photocatalyst plates, the fan is fixed in the inner cavity of the shell, and the photocatalyst plates are fixed in the shell. The photocatalyst plate is arranged between the fan and the air outlet; the photocatalyst plate is composed of at least two honeycomb plates which are obliquely arranged, and a plurality of ventilation holes are formed in the honeycomb plates in a penetrating manner; the photocatalyst plates are coated with photocatalysts, each group of photocatalyst plates is provided with at least one excitation light source, and the excitation light sources are located over the corresponding photocatalyst plates. According to the utility model, the photocatalyst plate with a special structural form is adopted, and the photocatalyst plate with a V-shaped, inverted V-shaped, N-shaped or W-shaped structure is formed by the two honeycomb plates, so that the contact area of the photocatalyst plate and the light of the excitation light source is greatly increased, the catalytic efficiency and catalytic effect of the photocatalyst are effectively improved, and the disinfection and killing effect is improved.

The invention discloses a prefabricated photocatalyst film for retaining freshness of leaf vegetables as well as a preparation method and application of the prefabricated photocatalyst film. The photocatalyst film comprises the following components in parts by weight: 100 parts of chitosan; 0.5 to 2 parts of metal-nitrogen doped titanium dioxide; 0.5 to 1 part of riboflavin; 30 to 40 parts of glycerol; wherein the metal-nitrogen doped titanium dioxide is iron-nitrogen doped titanium dioxide and / or copper-nitrogen doped titanium dioxide. The photocatalyst film is used for sealing the prefabricated leaf vegetables, composite LED illumination in the cold chain distribution process is combined, the antibacterial and fresh-keeping effects are achieved, microbial infection of the prefabricated vegetables in the cold chain distribution process can be reduced, water loss and chlorophyll degradation can be reduced, and the shelf life of the prefabricated vegetables can be prolonged.

The present application relates to a kind of whole house purification system and method based on full visible light excitation photocatalyst, the visible light photocatalyst prepared in advance is mixed uniformly with the paint and paint required by room decoration engineering according to set proportion, obtain the visible light photocatalyst purification material prepared and is sprayed on the surface of room wall and ceiling;According to the temperature change and humidity change of indoor and outdoor, utilize the heating equipment, refrigeration equipment, dehumidification equipment and humidification equipment in room to maintain the temperature and humidity in room in set range, and in set time period, utilize air inlet and return air opening for room ventilation, during using natural light or room lighting lamp, excitation photocatalyst in purification material.Visible light photocatalyst is sprayed to the surface of wall and ceiling in the decoration material containing visible light photocatalyst, and excitation visible light photocatalyst using natural light or lighting lamp, decomposes the harmful substance overflowed in decoration material.

The utility model relates to the field of photocatalysts, in particular to a photocatalyst material mixing device which comprises a base, a tank and a motor, a stirring mechanism is arranged in the tank and comprises a straight rod, a fixing sleeve and a composite blade set, the composite blade set comprises a first rotating cylinder, a bearing, a fixing ring and a butt joint column, and a ratchet wheel is fixed to the butt joint column. Materials for preparing the photocatalyst are put into the tank body, then the motor is started to provide power needed during operation for the stirring mechanism, the motor drives the straight rod to rotate, the assembly cylinder installed on the straight rod starts to drive the composite blade set to rotate, and in the rotating process of the composite blade set, the composite blade set is driven to rotate. The arc-shaped blades on the surface of the first rotary drum drive the first rotary drum to rotate after being subjected to resistance of a liquid material, and the arc-shaped blades can provide a spiral force in the horizontal direction during rotation, so that gel particles floating in the material on the liquid surface can be better fed to the bottom surface of the material, and the gel particles are uniformly distributed in the tank body.

The invention relates to the technical field of air purification, in particular to a novel device for detecting and removing formaldehyde. The elbow suction pipe is rotationally communicated with the top of the purification box, and the other end of the elbow suction pipe is detachably communicated with a filter pipe; and the electronic chemical sensor is detachably mounted in the filter pipe and extends into the elbow suction pipe. The formaldehyde content in the air is detected through the electronic chemical sensor, when the formaldehyde content exceeds the standard, the ultraviolet lamp and the suction pump can be automatically started, a photocatalyst is irradiated through the self-rotating ultraviolet lamp, a formaldehyde eliminating agent is sucked into the self-rotating spraying head through the suction pump, the formaldehyde eliminating agent is sprayed to the air in a large range, and the formaldehyde eliminating effect is good. The formaldehyde in the air can be removed while the formaldehyde in the air is detected, and the purification efficiency is improved.

The present invention discloses an air purification device, which includes a body housing, a bottom cover, a fan, and a composite filter; an air outlet is provided at the top of the body housing, an opening is provided at the bottom of the body housing, and the bottom cover closes the opening; the fan and the composite filter are sequentially arranged in the body housing along the direction from the air outlet to the opening, and an air inlet is provided in the body housing corresponding to the position of the composite filter; the composite filter includes a first filter, a second filter, a lysozyme filter, an ultraviolet barrier layer, a photocatalyst filter, and an ultraviolet lamp which are sequentially arranged at intervals from the body housing towards the inner direction. The air purification device proposed by the present invention aims at children's activity places and can effectively remove allergens that affect children's respiratory diseases and allergic diseases.

The invention discloses a pure cotton odor-removing sanitary napkin which comprises a surface layer, an absorbing core body and an odor-removing layer, the surface layer is made of pure cotton materials and is loaded with nanoscale photocatalyst materials or bio-enzyme preparations, the absorbing core body is formed by mixing fluff pulp and super absorbent resin, and the nanoscale photocatalyst materials are loaded on the surface of the absorbing core body. The invention further discloses a preparation method of the pure-cotton odor-removing sanitary towel. The preparation method comprises the following steps of S1, surface layer treatment, S2, absorption core body preparation, S3, odor-removing layer preparation and S4, assembling. The photocatalyst, bio-enzyme catalysis, nano adsorption and ion exchange technologies are creatively fused, the excellent odor removal effect is achieved, the nanoscale titanium dioxide photocatalyst generates strong oxidizing free radicals under the illumination condition and can rapidly decompose odor molecules, the bio-enzyme can accurately catalyze and decompose organic components in menstrual blood, and the odor removal effect is good. The generation of peculiar smell is fundamentally inhibited.

The present invention discloses a photocatalyst preparation and filling device, which includes a device chassis. There is a working platform on the device chassis. The device further includes: a disc-type gas filling device and a disc-type liquid filling device. The disc-type gas filling device and the disc-type liquid filling device both include a bottom disc and a plurality of filling components distributed and installed on the bottom disc. The bottom disc is rotatably installed on the working platform. A plurality of bottom limiters for limiting the cans are distributed and installed on the outer circle of the upper end surface of the bottom disc. Each filling component corresponds to the corresponding bottom limiter. The disc-type liquid filling device further includes a quantitative perfusion component, and the quantitative perfusion component is used to introduce a quantitative photocatalyst suspension into the filling components of the disc-type liquid filling device. The photocatalyst preparation and filling device of the present invention does not need to wait for a long perfusion time, and the number that can be perfused per unit time is effectively increased, greatly improving the working efficiency of photocatalyst preparation and filling.

The present invention relates to a nanostructured optical carrier comprising a nanostructured surface and a contact surface, formed on a substrate by spraying, brushing, spin coating, immersion, deposition, growth, or etching. The nanostructured carrier exhibits light transmissivity or reflectivity, and is in the form of a thin sheet, film, or thin, discontinuous island with a specific nanostructure thickness. Specifically, the nanostructured surface comprises a plurality of nanoscale bumps, nanoscale recesses, or a combination of bumps and recesses. Multiple optical actions on the nanostructured surface significantly enhance the nanoreaction of light. The nanostructures can be nanoscale bumps, nanoscale recesses, or a combination thereof, and the optical action can be reflective, transmissive, resonant, photocatalytic, or a combination of these, thereby achieving the properties of killing bacteria or viruses and decomposing impurities.

The invention relates to the technical field of sterilizing lamp manufacturing, in particular to an LED photocatalyst sterilizing lamp and a manufacturing method thereof.The LED photocatalyst sterilizing lamp comprises a lamp holder, a lamp panel and lamp holders, the lamp panel is detachably arranged at the bottom of the lamp holder, the lamp holders are detachably installed on the lamp panel in the circumferential direction of the lamp panel, the lamp holder comprises a connecting piece, and plate sets are symmetrically arranged on the two sides of the connecting piece; the lamp panel comprises a fixed mounting disc; a power supply connecting plate is arranged at the upper end of the fixed mounting disc; according to the LED lamp, a fixed mounting disc and a power supply connecting plate in the lamp panel are matched with locking bolts, a plurality of lamp caps can be synchronously limited and locked, meanwhile, two rotating supporting rods are matched, and the fixed mounting disc and the power supply connecting plate are connected and locked, so that the locking efficiency and the assembling stability are greatly improved; and through a triangular structure formed by matching of the abutting screw rods and the plate sets, the strength and the stability of assembling and supporting the multiple lamp caps are improved.

The technical problem to be solved by the utility model is to provide the medical air purifying equipment for disinfecting and killing aerosol in the ward, which can effectively eliminate pathogenic microorganisms such as viruses and bacteria carried in air and effectively reduce potential threats of indoor air quality to health. The equipment comprises a shell and an air conditioner body, an air inlet and an air outlet are formed in the shell, a first mounting plate and a second mounting plate are arranged in the shell, an ultraviolet disinfection assembly, a first baffle and a second baffle are arranged between the first mounting plate and the second mounting plate, and the ultraviolet disinfection assembly is located between the first baffle and the second baffle; the lower surface of the first baffle and the upper side surface of the second baffle are both sprayed with a photocatalyst and active oxidase, and indoor air enters the air circulation channel through the air inlet, is sterilized and disinfected through the ultraviolet disinfection assembly, is subjected to temperature and humidity treatment through the air conditioner body and then is conveyed into a room through the air outlet. Sterilization and disinfection are achieved, and meanwhile temperature and humidity adjustment is achieved.

The utility model relates to an air purification device and a three-dimensional printing system, and the air purification device comprises an outer cylinder which is provided with an air supply channel; the inner barrel is arranged in the air supply channel, and the air supply channel is divided into a first airflow channel and a second airflow channel by the inner barrel; the purification assembly is arranged in the air supply channel and comprises an illumination module, a photocatalyst carrier module and an ozone generation module, the ozone generation module is arranged in the second airflow channel, and ozone generated by the ozone generation module flows to the first airflow channel from the second airflow channel. Inlet air flow of the air supply channel can smoothly enter the first air flow channel and the second air flow channel, the air inlet efficiency is improved, air is rapidly purified, meanwhile, ozone enters the first air flow channel from the second air flow channel, decomposition of harmful substances can be enhanced, and the purification effect is improved.