What are the factors affecting the electrostatic removal effect of ionic wind rod?

The electrostatic removal effect of ionic wind rod is affected by the following factors:

First, environmental factors

1. Air humidity

- When the air humidity is low, the electrical conductivity of the air is poor, and static electricity is easy to accumulate and not easy to dissipate. The efficiency of ion propagation and charge neutralization in dry air will be affected. For example, in a dry indoor environment in winter, the electrostatic phenomenon is more obvious, and the ionic wind rod may take longer to achieve the ideal electrostatic removal effect.

On the contrary, in a high humidity environment, the air itself has a certain conductivity, which contributes to the natural dissipation of static electricity, and is also conducive to the propagation of ions generated by ion wind rods in the air, thereby improving the effect of removing static electricity.

2. Air cleanliness

- If there are a lot of dust, oil and other pollutants in the air, these impurities may be attached to the electrode or ion emission end of the ion wind rod, affecting the generation and emission of ions. For example, in some industrial environments, such as casting workshops or dust-heavy chemical workshops, dust particles may block the ion emission needle of the ion wind rod, reducing the amount of ion emission, and thus reducing the electrostatic removal effect.

Contaminants may also react with ions, consuming them and reducing the number of effective ions that can reach the surface of a charged object for charge neutralization.

Second, the ion wind rod itself factors

1. State of ion emission needle

- Wear of the ion emission needle will affect ion production. With the increase of use time, the emission needle may gradually wear out due to frequent ionization process, the curvature radius of its tip increases, and the ionization efficiency decreases. For example, when the emission needle is worn to a certain extent, a higher voltage needs to be applied to produce a sufficient number of ions, which may affect the de-electrostatic performance of the ion wind rod.

- If the emission needle is contaminated, such as being covered by dust, chemicals, etc., it will also hinder the normal emission of ions. This is like forming a layer of insulation on the surface of the electrode, making the ionization process difficult to proceed smoothly, thus reducing the electrostatic removal effect.

2. High voltage generator performance

- The high voltage generator of the ion wind rod is responsible for providing the high voltage required for ionization. If the output voltage of the high-voltage generator is unstable, the number and energy produced by ions may be unstable. For example, voltage fluctuations may cause ionic wind rods to sometimes produce enough ions to neutralize static electricity and sometimes fail to achieve the desired de-static effect.

- The power of the high-voltage generator will also affect the electrostatic effect. At low power, it may not be possible to generate sufficient ion numbers to quickly neutralize large electrostatic charges on the surface of charged objects, especially in production environments where electrostatic charges accumulate quickly.

3. Structural design of wind rod

- The length of the ion wind rod and the distribution density of the ion emission needle will affect its range of action and the uniformity of electrostatic removal. If the ion emission needles are distributed sparsely, the long wind rod may lead to poor electrostatic removal effect at both ends of the wind rod or in the area with a large distance between ion emission needles.

- The outlet design of the wind rod is also critical. Reasonable design of outlet can ensure that ions blow to charged objects in a stable airflow form, so that ions can uniformly cover the target area. If the design of air outlet is not reasonable, it may cause uneven distribution of ion air flow and affect the electrostatic removal effect.

Third, the use of conditions

1. Distance from charged objects

- The distance between the ionic wind rod and the charged object directly affects the electrostatic removal effect. When the distance is too far, the ions will gradually diffuse and decay during the propagation process, and the number of effective ions reaching the surface of the charged object will decrease, and the ability to neutralize static electricity will decrease. For example, when the distance between the ionic wind rod and the target object exceeds its effective range of action (generally ranging from a few centimeters to tens of centimeters, depending on the specifications and performance of the wind rod), the electrostatic effect will be greatly reduced.

- Too close a distance may also have problems, for example, it may cause local ion concentration to be too high, resulting in ionic wind impacting charged objects, causing adverse effects on some precision components, but also may affect the uniformity of electrostatic removal.

2. The charged nature and amount of charge of the object

- If the electrostatic charge density of the surface of the charged object is large, that is, the amount of charge is more, more ions are needed to neutralize. Ionic wind rods may require longer time or higher ion production to completely eliminate static electricity. For example, in some industrial processes where high-speed friction produces a large amount of static electricity, such as high-speed printing or high-speed plastic film production, the amount of electrostatic charge on the surface of the object is large, which is a test for the electrostatic removal ability of the ionic wind rod.

- The charged nature of the object (positive or negative) will also affect the electrostatic removal effect. If the types of ions produced by the ionic wind rod do not match the surface charge properties of the object, for example, the object is positively charged and the wind rod produces too many positive ions and not enough negative ions, it will affect the efficiency of neutralizing static electricity. Ion wind rod manufacturers