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82results about How to "Improve sterilization efficiency" patented technology

Antibacterial functionalized artificial joint with silver-loaded nanotube array surface

InactiveCN101766840AImprove sterilization efficiencyLess prone to drug resistanceSurface reaction electrolytic coatingTitanium compoundsIonBone morphogenetic protein
The invention relates to an antibacterial functionalized artificial joint with a silver-loaded nanotube array surface. The surface of a metal substrate of the artificial joint is provided with a silver-doped sodium titanate nanotube array layer with a tubular structure. The inside of the silver-doped sodium titanate nanotube array layer is further loaded with bone morphogenetic protein (BMP). A preparation method of the antibacterial functionalized artificial joint with the silver-loaded nanotube array surface comprises the following steps: firstly selecting pure titanium or titanium alloy to process the artificial joint; then adopting the two-step anodizing technology to obtain a titanium dioxide nanotube array layer with a tubular structure on the surface of the pure titanium or titanium alloy artificial joint; adopting the alkaline hydrothermal synthesis technology to convert the titanium dioxide nanotube array layer into the sodium titanate nanotube array layer; doping trace silver in the sodium titanate nanotube array layer by solution impregnation iron exchange; and finally adopting the centrifugal load technology to load the bone morphogenetic protein in the silver-doped sodium titanate nanotube array layer.
Owner:江苏广达医材集团有限公司 +1

Sterilization and refreshing control method of refrigerator

The invention discloses a sterilization and refreshing control method of a refrigerator. The sterilization and refreshing control method comprises the following steps of: (1) detecting whether a refrigerator door is opened; (2) when the refrigerator door is closed each time, controlling the refrigerator to enter a first mode; (3) after a sterilization device and a fan continuously run a first predetermined time, controlling the refrigerator to enter a second mode, wherein the second mode comprises the steps of: (a) continuously running the sterilization device and the fan for a second predetermined time, and (b) stopping running for a third predetermined time, and circularly executing the steps (a) and (b) for the predetermined times; (4) after the steps (a) and (b) are circularly executed for the predetermined times, controlling the refrigerator to enter a third mode; and (5) returning to the step (3) and circularly executing the steps (3) and (4). According to the sterilization and refreshing control method of the refrigerator, disclosed by the embodiment of the invention, the sterilization efficiency is improved, the switch on time of an ultraviolet lamp is greatly shortened under the condition that the sterilization and refreshing effects are guaranteed, and further the service life of the ultraviolet lamp is prolonged.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +1

Method for preparing silver-loaded activated charcoal through low-temperature reduction and pyrolysis of urea

The invention relates to a method for preparing silver-loaded activated charcoal through low-temperature reduction and pyrolysis of urea. The silver-loaded activated charcoal is prepared through preparing a silver nitrate and urea complexing solution, carrying out activated charcoal infiltration and carrying out pyrolysis and reduction. The method comprises the steps: firstly preparing the silver nitrate-urea complexing solution, of which the mole ratio of silver nitrate to urea is (1 to 0.625): 1 and the mass concentration of Ag ions is 0.01% to 0.6%; carrying out soaking for 6 to 24 hours in accordance with that the ratio of activated charcoal to the complexing solution is 0.25Kg/L to 1Kg/L; carrying out pyrolysis under circulating nitrogen protection; and carrying out washing with clean water, and then, carrying out drying, thereby obtaining the silver-loaded activated charcoal. The particle size of nano-silver is 10nm to 60nm; the loaded silver amount is 0.01wt.% to 0.4wt.%; the binding power between silver particles and the activated charcoal is high, and the rate of loss of silver is not higher than 30% under the conditions of 150r/min and 600 hours of oscillation in constant-temperature water with the temperature of 25 DEG C; and the dispersity of the silver particles is good, process flows are shortened, the reaction temperature is lowered, the fungicidal efficiency of the silver-loaded activated charcoal is increased, and the consumption of silver is lowered.
Owner:CENT SOUTH UNIV

Preparation method and applications of organic polymer heterotrophic bacteria fungicide

InactiveCN103621502AImprove sterilization efficiencyBiocideFungicidesHeterotrophic bacteriaChemistry
The invention discloses a preparation method and applications of an organic polymer heterotrophic bacteria fungicide. The preparation method comprises the following steps: adding a certain amount of tetramethylethylenediamine and ultrapure water in a reaction kettle, heating the reaction kettle to 40 DEG C, slowly adding a certain amount of dichloroether and hydrogen peroxide having the mass fraction of 30% into the reaction kettle, and stirring the obtained mixture at a rotating speed of 300 r/min; after the materials are completely added, heating to 70 DEG C to react 8 hours, and then carrying out reduced pressure distillation on the obtained product for 1.5-2.5 hours, so that the water-soluble organic polymer heterotrophic bacteria fungicide (PACZMT) can be prepared; and recovering a menstruum obtained by distillation. When the initial number of heterotrophic bacteria colonies is 2.44*10<5>/mL-2.64*10<5>/mL, the adding amount of the PACZMT is 2-6 L/m<3>, the sterilization time is 2-24 hours, the pH value is 7.0-8.0, the temperature is 30-40 DEG C, and the sterilization rate for heterotrophic bacteria is 90.9-99.14%. The PACZMT prepared by using the method disclosed by the invention has the advantages of long effect duration, no bubbles, easiness for biodegradation, and the like.
Owner:CHANGZHOU UNIV

Water purification system and control method thereof

The invention discloses a water purification system. The water purification system comprises a water inlet pipeline, wherein the water inlet pipeline is connected with a filter assembly; the filter assembly is connected with a hot tank; the hot tank is provided with a pressure relief structure; a disinfection assembly is arranged at a downstream position relative to the hot tank; and the disinfection assembly is provided with a water outlet pipeline. Thus, the water purification system is disinfected and sterilized through heating of the hot tank and treatment of the disinfection assembly. The invention further discloses a control method of the water purification system. According to the water purification system and the control method, after a sterilization mode is manually selected or automatically executed, heating control is started, and a water taking electromagnetic valve and a sterilization drainage electromagnetic valve are closed, so the system is located in a closed heating space; after pressure and high-temperature water vapor are generated when the water is heated to a certain degree, pressure relief and drainage are conducted; and through the above mode, the pipeline is thoroughly sterilized and disinfected, sterilization efficiency is improved, the workload of a user is reduced, and the user experience is improved through intelligent control.
Owner:GREE ELECTRIC APPLIANCES INC

Indoor sterilization and oxygen supply device

The invention discloses an indoor sterilization and oxygen supply device and relates to indoor air conditioning and purifying devices. The indoor sterilization and oxygen supply device comprises a PSAoxygen generator, a filter chamber, a first sterilization chamber, a second sterilization chamber, a centrifugal fan, a water tank, an ozone generator and an ozone decomposer; the filter chamber communicates with an indoor space and the centrifugal fan; the filter chamber is connected with the first sterilization chamber and the second sterilization chamber through a filter element conveying device; an air purifying filter element can enter and leave the first sterilization chamber and the second sterilization chamber through the filter element conveying device; the PSA oxygen generator is connected with an inlet of the ozone generator and an indoor oxygen supply port; the ozone generator is connected with the first sterilization chamber and the second sterilization chamber; the first sterilization chamber and the second sterilization chamber are connected with the ozone decomposer; the ozone decomposer is connected with the indoor oxygen supply port; the water tank is connected withthe first sterilization chamber and the second sterilization chamber; and a nitrogen outlet of the PSA oxygen generator communicates with an outdoor space. The indoor sterilization and oxygen supply device has the advantages of being simple in structure, convenient to use, free of safety hazard, high in efficiency, harmlessness and the like.
Owner:SHANDONG WEIGAO GROUP MEDICAL POLYMER

Water treatment agent and preparing method thereof

A water treatment agent is prepared from, by mass, 52.0-61.0% (W/W) of sodium chlorite, 7.5-7.9% (W/W) of sodium bicarbonate, 7.1-7.5% (W/W) of sodium carbonate, 0.3-1.2% (W/W) of calcium chloride, 5.0-18.0% (W/W) of sepiolite and the balance sodium chloride. A method for preparing the water treatment agent comprises the steps of 1, weighing sodium chlorite powder, sodium bicarbonate powder, sodium carbonate powder, sodium chloride powder and sepiolite powder, placing all the powder in a reaction still, increasing temperature to 75 DEG C while stirring at the heating rate of 12 DEG C per min, and then conducting mixing for 28-35 min; 2, reducing temperature to 35 DEG C, then adding calcium chloride powder, and conducting mixing for 28-35 min; 3, directly conducting powder packaging according to packaging requirements, or conducting granulation in a granulator and then conducting packaging. Compared with the prior art, the water treatment agent has the advantages that oxidizing property is high, a broad-spectrum sterilization effect is realized, all bacterial reproductive bodies and pathogenic bacteria can be killed under the condition of 0.1 ppm, bacterial reproductive bodies can be completely killed under the condition of 50 ppm, and using is convenient.
Owner:JIANGSU SHINE ALL IND CO LTD

Cleaning and processing device for medical care instruments

InactiveCN108311465AImprove automation performance and productivityImprove sterilization efficiencyDrying gas arrangementsLavatory sanitoryEngineeringUltraviolet
The invention belongs to the technical field of medical equipment, and particularly relates to a cleaning and processing device for medical care instruments. The cleaning and processing device aims atsolving the problems that a common cleaning device for medical instruments is poor in cleaning effect and low in efficiency. According to the technical scheme, the cleaning and processing device comprises a base plate, a cleaning device body is arranged on the outer wall of the top of the base plate and comprises a cleaning box, a sterilization box is welded to the top of the base plate, a feed port is formed in the outer wall of the side, close to the cleaning box, of the sterilization box, a first conveyor belt is fixedly arranged at the top of the base plate through bolts and penetrates through the feed port to be located inside the sterilization box, and the height of the end, close to the cleaning box, of the first conveyor belt is smaller than the height of the end, away from the cleaning box, of the first conveyor belt. The cleaning and processing device has the advantages that the medical instruments can be driven to be rotated and cleaned, and therefore the automation performance and the working efficiency of the device can be improved, the medical instruments can be driven to vibrate up and down when passing through a transmission plate, so that ultraviolet sterilizationlamps can sterilize the the medical instruments in all directions, and the sterilization efficiency of the device can be improved.
Owner:王永英

A led ultraviolet germicidal lamp

The invention discloses an LED ultraviolet sterilizing lamp, which comprises a connecting base, a lamp body fixedly arranged on the connecting base and a light emitting source in the lamp body, wherein the light emitting source comprises a UVC semiconductor driver board, a UVC semiconductor, a reflector, an LED driver circuit board, an LED lamp bead, a light-transmitting window and a lens; the UVC semiconductor driver board is inlaid with and connected to the connecting base; a radiating substrate is arranged on the connecting base; the wavelength of ultraviolet emitted by the UVC semiconductor is 250-270nm; the reflector is represented as a hollow round platform with upside bigger than downside and is arranged around the UVC semiconductor; lower bottom corners on two sides of the reflector form included angles of 30 degrees with the horizontal surface; ultraviolet is reflected by the reflector and is emitted by an emission angle of 120 degrees; and light of the LED lamp bead radiates the reflector, and is reflected on the lens and intensively emitted from a transparent shade. The sterilizing lamp disclosed by the invention is simple and reasonable in structural setting, relatively low in manufacturing cost, high in ultraviolet emission efficiency and long in service life of LED lamp; and the sterilizing lamp can realize controllable sterilizing angle and improve sterilizing effect.
Owner:深圳莱特光电股份有限公司
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