The generation of static electricity is due to the different objects touch each other or friction, an object and positively charged, having lost some electrons electron transfer to another object so that it is negatively charged. If the charge is difficult to neutralize during the separation of the object, the charge on the object becomes static.See QEEPO for more details.
Some customers will judge the quality and performance of the electrostatic eliminator according to the current of the discharge needle, which is actually a wrong idea.
At present, the international mainstream electrostatic eliminators are small current anti electric shock type, so the electrostatic eliminators will be safer in use and have a longer service life.
The reason why the current of the discharge needle of the electrostatic eliminator is small is that the current limiting part is installed inside the electrostatic eliminator to reduce the current of the discharge needle. At the same time, we will increase its output voltage to ensure that the performance of the electrostatic eliminator will not become weak.
The general electrostatic eliminator without air source is best installed 3-5cm away from the static object. Some people will think that the closer the installation is, the better the effect will be. In fact, it is not.
When you install the electrostatic eliminator close to the object with static electricity, the object will be in a strong electric field. There are a lot of positive and negative charges generated by the discharge electrode in this area. After neutralizing with the electrostatic charge of the object, there will be a lot of residual charges, which will adhere to the surface of the object and make the surface of the object charged.
As a result, it is impossible to eliminate the static electricity on the surface of the object, and even the static electricity on the surface of the object will increase. Therefore, the electrostatic eliminator needs to be installed in the right place, not the closer the better.
The traditional electrostatic eliminator without electric shock has a large discharge current, which will produce a strong energy in the event of short circuit. The service life of this kind of electrostatic eliminator is generally about two years.
At present, the mainstream anti electric shock electrostatic eliminator, because its discharge electrode current is very small, so its service life is significantly increased, and it can generally be used for more than five years.
It should be noted that: in the process of using the electrostatic eliminator, because its discharge electrode has been corona discharge, it will make the discharge electrode and its surrounding accumulate dust.
These dust will affect the corona effect of the discharge electrode. At the same time, because these dust will have certain conductivity, some places will be in the state of long-term short circuit, which greatly affects the service life of the electrostatic eliminator.
Therefore, the electrostatic eliminator in use should pay attention to regular cleaning, so as to ensure the performance and service life of the electrostatic eliminator.
The performance of electrostatic eliminator can be evaluated from two aspects:
1.Time of removing static electricity
2.Ion balance
The shorter the removal time and the smaller the ion balance, the better the performance of the electrostatic eliminator.
The deionization time and ion balance are defined as follows.
① Electrostatic removal time:
The time of removing static electricity is the time it takes to remove the charge of ± 1000V to ± 100V.
② Ion balance:
Ion balance is the voltage range measured at a certain distance from the electrostatic eliminator.