UV LED sterilization module, in the development of water appliances such as water purifier, humidifier application, how to choose?
发布时间：2021-08-10 15:57
来源：萤光创新
With the improvement of people's living standards and health awareness, the water purifier, humidifier, air conditioner and other home appliances on the market have launched the main health concept of sterilization, antibacterial function. So how should consumers choose such products when they encounter such products? As home appliance manufacturers, how should they match the functions according to the needs of customers in the research and development, so as to make products more in line with the needs of customers? And how should consumer choose when this kind of home appliance is in choose and buy? The following articles will give you answers.
1. Classification of water sterilization module
As the most mature and effective application of UV LED, water sterilization can be divided into two categories: static water sterilization and flowing water sterilization.
1, static water sterilization
Static water sterilization refers to the sterilization and bacteria-inhibition of water in the water storage space (container). Because the water storage container is usually stationary for a long time, it is easy for bacteria to grow and cause bacteria to exceed the standard when the temperature is appropriate. The static water sterilization module is designed to achieve and maintain a low bacterial level by regularly turning on the sterilization. According to the sterilization positioning of the product, it can be divided into bacteriostasis and sterilization. There is no essential difference between bactericidal and bacteriostatic, and the fundamental aim is to keep the affected water sterile or low bacterial levels for a long time. It is characterized by:
Advantages: The sterilization module can continue to act on a relatively fixed volume of water, which can achieve the purpose of sterilization at a lower cost. Low cost, high bactericidal rate.
Disadvantages: Due to low sterilization power, when new water enters, and new water contains high bacteria, it can not guarantee timely killing. Need to wait for a period of time to complete sterilization.
Therefore, static water sterilization is more suitable for water storage in the tank, and the supplementary water source is sterile water household bacteriostasis, or long-term bacteriostasis after sterilization of water in the tank.
2, flowing water sterilization
Different from static water sterilization, the water flowing through the sterilization module can be efficiently and instantaneously sterilized through the high-power ULTRAVIOLET radiation unit, so that the water flowing through the sterilization module can reach a sterile or very low bacterial content level. It is characterized by:
Advantages: instant sterilization, sterilization speed, can continue to stable output after sterilization of water, to solve the static water sterilization is relatively slow problem.
Disadvantages: Relatively complex structure, high uv radiation power, resulting in high cost.
Therefore, the flow water sterilization is more suitable at the end of the water purifier, the final water to drink the purpose of sterilization. At present, the overflow sterilization module has been applied in high-end household water purifier and commercial water purifier. With the gradual reduction of production cost, the scope of application is expected to be further expanded and become the final form of drinking water sterilization.
Second, for different application scenarios, UVC LED sterilization module function design
1. Static sterilization module
Because the bactericidal effect is mainly affected by the irradiation dose, if the irradiation dose is enough, the bactericidal effect is good, if the irradiation dose is insufficient, the bactericidal effect is insufficient, or even lose the effect. So how do you increase the dose?
Dose = intensity * duration of exposure, where intensity refers to the intensity of exposure received by the sterilized target. Therefore, in the design of electrical appliances, the following aspects are generally considered:
1. Improve the power of light source; It can be achieved by selecting more powerful light source devices.
2. Improve the absorption rate of ULTRAVIOLET light; According to the different characteristics of the water container, different sterilization module design can be used to achieve the above purpose.
3. Fully investigate the shape of the tank and the diffusibility of the water body to improve the sterilization effect;
4. Set the start time of the sterilizer reasonably.
Through deep strategic cooperation with high-quality light source manufacturers at home and abroad, Qingdao Fluorescent Innovation can produce customized light sources according to sterilization requirements to achieve a reasonable match between sterilization and light sources. At present, the company's product light source output and stability and life reach the domestic leading level.
Different installation conditions of different appliances at the same time, Qingdao fluorescent developed sunflower series, series of submarine, sky series, easy click-through series including 10 kinds for different scenarios of sterilization module, provides the top mounted, installed at the bottom, side installation, separate installation, no contact module scheme of installation, and combined with the installation of the water tank is a reasonable proposal. The installation scheme is simple and practical, stable and reliable, and the production and installation are easy to operate. Qingdao Fluorescent Innovation can offer static water sterilization products in installation sizes from 8mm to 27mm and power from 5mW to 50mW.
In addition, Qingdao Fluorescent's innovative self-built microbiology laboratory provides free bactericidal testing support for customers' products, which not only saves costs for customers, but also provides rapid experimental support and shorts the validation period for customers.
2. Flowing water sterilization module
As a relatively independent sterilization module, the selection of flowing water sterilization module should consider the match between the effluent velocity of the water system and the sterilization velocity of the sterilization module. If the selected sterilization module is much less than the water flow speed, the sterilization effect may not meet the requirements.
On how to install, flowing water sterilization module as a relatively independent modules, sterilization in water piping, installation location relatively flexible, but due to the officer, after sterilization way easy to cause the secondary pollution, so the outlet of the water sterilization modules should be as set in the official end of the road, the nearer the outlet, the better.
Qingdao Fluorescent innovation has developed a variety of overflow sterilization modules based on practical application scenarios.
The main modules are: ultra-micro overflow sterilization module, for scenarios where sterilization requirements are less than 500ml/min.
Microsterilization module, 500ml~1L/min
Standard sterilization module: suitable for 1L~2L/min flow
Enhanced sterilization module: suitable for 2L~4L/min of flowing water sterilization
Large and super large sterilization module: suitable for more than 10L to 500L/min of flowing water sterilization.
It is worth paying attention to that, in order to completely solve the problem of bacterial colonies in drinking water sterilization, Fluorescent innovative technology targeted to the development of sterilization faucets and water nozzle. The sterilization function is cleverly integrated in the water purifier (water dispenser) in the tap and the water nozzle, so that the real end sterilization, sterilization is the entrance. The problem of secondary pollution has been solved.
Three, the main engine factory to choose ultraviolet sterilization module matters needing attention and electrical equipment matching design ideas
The selection of sterilization module should be considered from the following points
1. Matching of usage scenarios and selection of modules.
2. Match the size of the water tank with the power of the sterilization module and the starting time
3. Match the shape of the water tank with the installation position of the sterilization module
Four, consumers in the selection of electrical appliances and matters needing attention in use
Water purifiers class
First of all, not all the water from the purifier can be drunk directly. Because there is more or less the problem of secondary pollution in the water purifier pipeline, especially if the water purifier with a built-in water tank has no sterilization function, the bacteria in the water tank may grow in large numbers after long-term use, and health problems may occur if it is directly drunk. The water purifier with ultraviolet bactericidal function should be selected as far as possible when the economic conditions allow. In particular, the water purifier with terminal sterilization or sterilization nozzle, due to ultraviolet sterilization, the bacteria content of the effluent is very low or sterile. It's safe to drink.
It is worth noting that consumers must carefully understand the product details when choosing water purifier. At present, some bad businesses on the market use violet or blue LED to pretend to be ULTRAVIOLET LED, and promote the sterilization effect. Actually this kind of product does not have the bactericidal effect, existence false propaganda suspicion. Only the ultraviolet sterilization module of UVC can have the real sterilization effect. Consumer should ask for the test report issued by formal third party test institution to the businessman as far as possible when choose and buy. 
Humidifier class
Contaminated humidifiers are one of the potential risks of respiratory health problems in winter. The reason is that the humidifier belongs to the typical scenario where the water storage tank stores water for a long time and comes into contact with the air, and the temperature is suitable for bacteria to grow for a long time. If the humidifier is not used for a long time, sterilization, or bacteriostatic measures, the middle of the bacteria may be tens of millions of times the growth. Dirty, bacteria-contaminated humidifiers have become one of the biggest causes of respiratory illnesses in winter.
There are currently a number of humidifier sterilizer products on the market. On the one hand, this shows a rise in health awareness, on the other hand, it ignores a more serious problem. There have been cases of humidifier microbicide deaths in South Korea. The latest survey estimates that 6.3 million people in South Korea used "problem humidifier microbicides" between 1994 and 2011. As many as 670,000 people were sickened. Among the 550,000 people treated, rhinitis, lung disease, skin disease and asthma topped the list. The actual death toll was between 13,000 and 16,000, about 10 times higher than the official tally of 1,553.
UV LED ULTRAVIOLET sterilization module, the use of ultraviolet physical sterilization, no waste, is the most suitable humidifier sterilization program. When choosing a humidifier, consumers should try to choose a humidifier with ultraviolet sterilization function if economic conditions allow. If the humidifier with sterilization is not selected, the water in the humidifier should be emptied and dried after each use, and new water should be added in the next use. Use pure water or purified water for humidifier as much as possible. If the humidifier with ultraviolet sterilization is used, the daily use will be much more convenient, but it should also be noted that after the humidifier is used for a period of time, white vinegar should be used to wipe the ultraviolet sterilization light unit, remove the surface may be attached to the mineral, in order to achieve the purpose of continuous effective sterilization.
Qingdao Fluorescent Innovation Technology Co., LTD., focusing on the research of ultraviolet sterilization application, after years of deep involvement in the ULTRAVIOLET industry, the company has won a number of national invention and utility model patents. At present, many bactericidal module products have been put into the market. For more details, please visit the company's website www.qdyingguang.com to contact the company or follow the wechat official account.
