What are the high-quality features of the wet electrostatic precipitator in the process?

The biggest difference between the wet electrostatic precipitator and the dry electrostatic precipitator is the difference in the flue gas working medium. The flue gas of the dry electrostatic precipitator is dry flue gas, the flue gas temperature is higher, and the flue gas does not contain mist droplets. The wet electrostatic precipitator is saturated wet flue gas, the temperature of the flue gas is low, and the flue gas contains a large number of mist droplets. The traditional vibration cleaning method is replaced by spray cleaning in the cleaning method.

Therefore, the FRP wet electrostatic precipitator adds a spray system and a water supply and drainage system for the spray cleaning system. Since the wet electrostatic precipitator is running with saturated wet flue gas inside, in order to prevent the saturated wet flue gas from condensing on the inner wall of the supporting insulator, causing the supporting insulator to crack or even explode, the wet electrostatic precipitator also increases the hot air of the insulator insulation box The purge system plays the role of heating and airtight.

The big challenge facing the large-scale application of high-efficiency wet electrostatic precipitators today is the problem of narrow sites, because the layout of the tail of coal-fired boilers in domestic power plants is generally very compact, and the power plant did not consider setting up wet electrostatic precipitators during planning, so the site layout is more complicated. for difficulty. The wet electrostatic precipitator with special-shaped structure introduced below can solve these problems.

Since the wet electrostatic precipitator is placed after the wet desulfurization process, the flue gas working medium is saturated wet flue gas, the flue gas temperature is low, and the flue gas contains a large amount of acid droplets, which is highly corrosive. Therefore, it is necessary to pay attention to comprehensive consideration in the selection of structural materials in contact with the body and flue gas.

From a structural point of view, the interior of the shell is usually made of ordinary carbon steel. In order to prevent corrosion, the inner surface needs to be coated with anti-corrosion materials, usually glass flakes.

The overall work of the anode plate is wrapped in a corrosive environment, and its surface must have strong corrosion resistance. At the same time, the joint points that are prone to corrosion should be minimized, because once the plate fails, it will not only disturb the electric field, but also generate sparks. cause a decline in dust removal performance. Since the environmental protection wet electrostatic precipitator is equipped with a continuous spraying system, a water film can be formed to cover the electrode surface, and the circulating water has been neutralized by adding alkali, thus greatly reducing corrosion. In such an environment, 316L stainless steel is used as the electrode material. Can.

The cathode line, cathode frame and the internal pipeline of the sprinkler system have the same working environment as the anode plate, and their corrosion resistance should be higher than other components. At the same time, because the surface is easy to cause dust condensation and local corrosion is fast, the cathode line should be at least the same material as the anode plate.

Due to the irregular shape of other internal parts, anti-corrosion construction is difficult and the quality of anti-corrosion construction is uncontrollable. Therefore, SUS316L stainless steel or equivalent materials can also be used.