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On the Installation and Function of Flow-Through Ultraviolet Sterilizers

2022-12-05

On the Installation and Function of Flow-Through Ultraviolet Sterilizers

　　 Flow-through ultraviolet sterilizer It consists of components such as a 304 or 316 stainless steel housing, ultraviolet lamp tubes, an electronic ballast, a quartz sleeve, and a control box. When selecting the installation location for a flow-through UV sterilizer, the equipment should be installed according to the specified requirements. Typically, flow-through UV sterilizers are installed at the outlet of the water tank and at the center of the variable-frequency pump; however, they must never be installed at the pump outlet. Due to the water hammer effect, buffering through pipelines, valves, and pump impellers can minimize the destructive force of water hammer and also reduce the damage that high-pressure in the pipeline network may inflict on the UV sterilizer. Therefore, the UV sterilizer should be installed at the inlet of the pump.

　　Installation precautions for flow-through UV sterilizers:

　　1. To facilitate the replacement of accessories, a certain amount of space should be left in the waterproof electrical box above the equipment’s water tank, depending on the specific model.

　　2. Try to avoid staying outdoors as much as possible. If you must stay outside, be sure to wear protective gear when using an overcurrent ultraviolet sterilizer.

　　3. Do not immerse the sterilizer’s lamp holder in water;

　　4. If the sterilizer control box is equipped with a fan, it is necessary to leave a certain amount of space between the control box and the equipment wall to ensure proper operation of the fan and accommodate any new requirements.

　　5. If the power supply is other than 220V/50Hz, please consult the seller first.

　　After installation is complete, turn on the power switch of the flow-through UV sterilizer and check whether all indicator lights are illuminated. If all the indicator lights are lit, it means the lamp tube is operating normally. Then, open the valves at both the outlet and inlet to allow the flow-through UV sterilizer to begin disinfecting the water.

　　Flow-through ultraviolet disinfection devices offer advantages such as high efficiency, no chemical residues, and cost-effectiveness. They are widely used for disinfecting indoor air, surfaces, and water. When rooms at home have poor ventilation, or when other enclosed spaces like refrigerators, wardrobes, and cars need to be disinfected, ultraviolet disinfection can be an effective solution.

　　Function of flow-through ultraviolet sterilizers:

　　1. Indoor air disinfection

　　Direct irradiation: Suitable for small public spaces such as classrooms and dormitories. When the room is unoccupied, direct irradiation can be achieved using suspended or portable UV lamps. When using indoor suspended UV disinfection, a 30W UV lamp is typically installed indoors, with an intensity of 70 μW/cm² at a distance of 1.0 meter. The total UV output should be no less than 1.5 W, and the irradiation time should be no less than 60 minutes.

　　Direct Irradiation Method: UV disinfectors not only deliver stable disinfection performance but can also be used while people are indoors. Typically, it takes 30 minutes of disinfection to achieve qualified results. After disinfection, be sure to ensure adequate ventilation.

　　2. Disinfect the surfaces of objects.

　　For close-range mobile irradiation, portable ultraviolet sterilizers are recommended; for suspended irradiation, UV lamps can be used. Small items can be irradiated in UV disinfection chambers, typically using high-ozone, high-intensity UV disinfection lamps. On the one hand, this approach leverages the synergistic bactericidal effect of ultraviolet light and ozone; on the other hand, it utilizes ozone to disinfect areas that are not directly exposed to UV radiation.


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