Precautions for the use of electrostatic ion fan device
Static elimination devices can be divided into AC and DC according to the high voltage type used by their discharge electrodes (discharge needles). AC is divided into high frequency and ordinary AC (commercial frequency), and DC is divided into continuous DC. , DC pulse type.
The difference between AC and DC static elimination devices is that a discharge needle of the AC type static elimination device can alternately generate positive and negative air ions. The discharge electrode is composed of a discharge needle and a ground electrode. A grounding electrode is required, and the discharge electrode is composed of separate discharge needles for positive and negative. In situations where there is no external air supply (such as fans, compressed gas, etc.), the DC static elimination distance is farther than the AC type static elimination. When there is external air supply, the elimination distance is mainly determined by the static elimination distance. The structure, the air volume and the strength of the high-voltage power supply.
The difference between AC and DC static elimination devices is the difference in ion balance. The AC type static elimination device generates both positive and negative ions on the same discharge needle, so even if the discharge needle is worn for a long time, the ion balance There will be no major changes, and the ion balance performance is better. Because the discharge needle is composed of independent positive and negative electrodes, the ion balance is poor when used in close distance. In addition, the discharge needle is affected by the environment and the pollution degree of the needle during use will affect the ion balance, especially After the discharge needle is used for a long time, the positive and negative discharge needles wear different degrees, and the ion balance cannot be corrected even after cleaning.
Since the static discharge needle will be contaminated after long-term use, it will directly affect the static elimination performance and ion balance, so the static elimination electrode part should be cleaned regularly when using it, especially the DC type static elimination discharge needle is more susceptible to pollution, compared to the AC type The cleaner should be cleaned more frequently, and the positive and negative discharge needles have different degrees of wear. Regular ion balance testing is required. When the discharge needles are severely worn, the discharge needles should be replaced in time.