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

2021-04-15

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

The ultraviolet sterilizer features uniform water flow, no dead zones, excellent light irradiation conditions, thorough disinfection, low energy consumption, and flexible and convenient installation. Its main body is made of stainless steel, eliminating any risk of metal ion contamination. The product’s structure is a sealed container with a quartz sleeve design, equipped with an electrical control unit inside. The key UV lamp boasts a theoretical lifespan of up to 10,000 hours, reaching an internationally advanced level. The product has an elegant and sophisticated appearance, a compact structure, and is easy to operate and maintain. It is widely applicable in industrial and mining enterprises, residential areas, hotels and guesthouses, government offices and schools; as well as in field operations, food processing, pharmaceutical industries, high-purity water production, public venues, leisure and tourism sectors providing direct drinking water, and industries where residual chlorine is not permitted in beverages or other products.

As per the instructions

1: Ambient temperature

The on-site environment and temperature can both influence the intensity of ultraviolet radiation. Both excessively high and excessively low temperatures will reduce the radiation intensity. Therefore, the on-site environment must be kept dry and well-ventilated; generally, a room temperature between 20°C and 40°C is considered ideal for UV disinfection.

2: On-site power source

The power supply at the site must use a dedicated circuit and must not share a circuit with the variable-frequency water pump. The voltage must remain stable (220 ± 22V, frequency 50Hz ± 2.5Hz). Voltage fluctuations can cause the lamps to flicker and even burn out.

3: Installation Location

When installing a UV disinfection unit, it must be mounted horizontally (vertical installation is strictly prohibited). During on-site installation, the equipment must be positioned between the water pump and the water tank. Installing it at the rear end of the pump could cause damage to the sleeve due to excessive impact force when the pump starts, leading to leaks in the equipment. Additionally, the equipment must not be installed directly onto the main pipeline. Whether one or more UV disinfection units are connected in parallel, a bypass pipe and a shut-off valve must be installed to facilitate maintenance.

4: Installation Basics

When installing the equipment, a foundation higher than the building’s floor level should be provided. Generally, the foundation should rise 30–50 cm above the ground (for large-scale disinfection units). If no foundation is available, the ultraviolet disinfection equipment should be mounted on a stand (for small-scale UV disinfection units). It is important to select an appropriate installation location and pay attention to waterproofing and moisture-proofing of the electrical control cabinet.

5: Spatial Considerations

A space equivalent to the length of the UV sterilizer should be left at its single end to facilitate lamp replacement. A clear, unobstructed space of 0.6 meters must be maintained in front of the UV sterilizer’s control panel for easy maintenance. The electrical control box should be installed near the device in an environment with relative humidity no greater than 80°C, free from corrosive gases, conductive dust, and strong vibrations or shocks.

6: Water Quality Requirements

Water hardness < 450 mg/L
Total iron content < 0.3 ppm (0.3 mg/L)
Sulfide <0.02 ppm (0.02 mg/L)
Total suspended solids <10 ppm (10 mg/L)
Manganese content < 0.1 ppm (0.1 mg/L)
Turbidity < 5 NTU
Chromaticity difference <15 degrees
pH 6.5–8.5
Water temperature: 5℃-60℃
 

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