What is the prerequisite for the gas detector to be pretreated?
First popularize a wave of common sense. Gas detectors have a range of use. This is generally mentioned in technical documents. In terms of gas temperature, combustible and oxygen do not require pretreatment, because there are many places where they are used. Specific The equipment came into being, so what is the premise that the gas detector needs to be pretreated?
High-temperature combustible and zirconia are gas detectors that do not require pretreatment. They are combustible at high temperatures and are generally used to measure combustible gases in places of 400-600 degrees Celsius. Zirconia is plug-in, suitable for places above 100 degrees Celsius and below 800 degrees Celsius. Measure oxygen. (plug-in)
There are also some situations that do not require pretreatment. First of all, if the pressure is strong, no pretreatment is required, and only a pressure reducing valve is installed. If the pressure is negative, no pretreatment is required, and only a pump is required.
Preprocessing is mainly applied in three situations:
1. Need to cool down (the above two gases are not used);
2. It needs to remove water (the humidity is extremely high, but it is not necessary if there are no small water droplets);
3. Dust removal.
In general, if the temperature is higher than 70 degrees Celsius and there are small water droplets on the surface, pretreatment is required. Electronic condensers are used for cooling, compressors for water removal, filters for dust removal, and sampling pumps cannot be used under vacuum. Everyone should pay attention to this.
In addition, if there is oil, pretreatment cannot be used. This is not oil and gas, but liquid oil. Liquid oil will hinder the operation of the pretreatment system. In fact, this kind of exhaust gas online monitoring system, and everyone may be less Contact CEMS, in principle, can be called a classification of pretreatment.
Because this product is basically customized, the price is relatively high, but because of its anti-corrosion properties, its performance is superior, and its service life is more than 1.5 times that of ordinary detectors. It has gradually become the first choice of many large enterprises. choose!
