ambient temperature
The outdoor environment and temperature have certain influence on the intensity of ultraviolet radiation. Too high or too low temperature will reduce the radiation intensity, so the outdoor environment must be kept dry and ventilated. Generally, the suitable temperature for ultraviolet disinfection is 20 ~ 40℃ at room temperature.
excitation source
The field power supply must use a separate line, and it is not allowed to use the same line as the variable frequency water pump, and the voltage must be stable. (voltage 220 22V frequency 50Hz 2.5)
Hz) voltage instability will cause the lamp to flicker and burn.
Installation position
When installing the ultraviolet sterilizer, it should be installed horizontally (vertical installation is strictly prohibited). During field installation, the equipment must be installed between the water pump and the water tank. When installed at the back end of the water pump, the impact force is too great to damage the shell and cause water leakage. It is not allowed to install the equipment directly on the main pipeline. Whether one or more ultraviolet sterilizers are connected in parallel, bypass pipes and stop valves should be installed to facilitate maintenance.
Installation foundation
When the equipment is installed, its foundation should be higher than the building ground. Generally, the foundation should be 30-50cm above the ground (large sterilizer). When there is no foundation, the ultraviolet disinfection equipment should be equipped with a bracket (small ultraviolet sterilizer). Choose the installation position reasonably, and pay attention to the waterproof and moisture-proof of the electric control cabinet.
Space consideration
The single end of the ultraviolet sterilizer should have the same space as the length of the equipment to facilitate the replacement of the lamp tube. A barrier-free space of 0.6m should be left in front of the control panel of the ultraviolet sterilizer to facilitate maintenance. The electric control box is installed near the device, the relative humidity of the environment is not more than 80℃, and there is no corrosive gas, conductive dust, strong vibration and impact.
Water quality requirements
hardness of water
Total iron content
sulfuret
Complete suspension
Manganese content
Turbidity < 5NTU
Chromaticity and color are the same < 15 degrees.
PH value 6.5-8.5
Water temperature: 5℃-60℃