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What are the actual appearance and welding requirements for ultraviolet sterilizers in practical use?

2021-04-15

What are the actual appearance and welding requirements for ultraviolet sterilizers in practical use?

Ultraviolet sterilizers can be used in various water disinfection applications, including secondary water supply in high-rise buildings, as well as in industries such as electronics, pharmaceuticals, food processing, chemical engineering, beverages, and cosmetics, where they are employed to produce purified water and disinfect swimming pool water. The sterilization process typically involves the following steps: tap water → quartz sand filter → activated carbon filter → precision filter → reverse osmosis membrane → ultraviolet sterilization and disinfection system → ultrafiltration unit → water tank. This process boasts advantages such as simplicity and convenience, broad-spectrum efficiency, no secondary pollution, ease of management, and the ability to achieve automation.

The key to ultraviolet sterilizers lies in "ultraviolet light." By harnessing the power of UV light—specifically, UV light with a wavelength of 254 nanometers—these sterilizers can destroy the core of a cell’s life: DNA. Even at extremely low doses of UV radiation, this wavelength is capable of disrupting DNA, thereby halting cell reproduction and rendering bacteria harmless by eliminating their ability to regenerate. This process achieves effective sterilization. To ensure that no microorganisms are detectable in the final product, ultraviolet disinfection can be employed. Ultraviolet disinfection is a non-chemical sterilization method that does not introduce toxins or residual substances into the water used in production. Moreover, it does not alter the chemical composition, taste, odor, or pH of the liquid being disinfected.

When using a UV sterilizer, there are certain requirements for the device's appearance as well. The requirements are as follows:

1. The welding of the equipment’s outer shell and frame should be firm, with no obvious deformation or burn-through defects.
2. The surface of the equipment should be evenly coated with a consistent color, and there should be no signs of flow marks, bubbling, paint leakage, or flaking on the surface.
3. The equipment’s exterior should be neat and aesthetically pleasing, with no obvious hammer marks or uneven surfaces. The instruments, switches, indicator lights, and nameplates on the panel should be securely and properly installed.

To ensure the stable operation of the equipment, we need to replace the lamps regularly. Imported lamps should be replaced after 9,000 hours of continuous use or one year, whichever comes first, in order to maintain a high disinfection rate. When replacing the lamp, first unplug the power socket, then carefully remove the old lamp. Next, gently insert the cleaned new lamp into the sterilizer, secure the gasket, and check for any leaks before plugging in the power again. Please note: Do not touch the quartz glass of the new lamp with your fingers, as any fingerprints could impair its disinfection effectiveness.

 

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A brief analysis of the factors that need to be considered when installing ultraviolet sterilizers.