Oil Mist Purifier ESP Electrostatic Field: Washable and reusable.
Ouyong:008615019189367
The internal electrostatic precipitator (ESP) unit of the oil mist purifier can be cleaned and reused multiple times, provided it is maintained according to specifications. This represents the primary advantage of electrostatic oil mist purifiers over traditional systems using disposable filter elements: the elimination of ongoing consumable costs, which significantly reduces operation and maintenance expenses.
![Oil Mist Purifier ESP Electrostatic Field: Washable and reusable.ouyong008615019189367 1]()
The ESP electric field consists of an ionization zone and a collection zone, typically constructed using aluminum alloy or stainless steel plates. As oil mist enters the electric field, particles become electrically charged in the ionization zone and are subsequently attracted to and captured by the collection plates. When significant oil residue accumulates on the plates, purification efficiency drops and phenomena such as sparking or arcing may occur; at this point, the unit requires disassembly and cleaning. Before cleaning, the power supply must be disconnected and the electric field assembly removed. Soak the assembly in warm water mixed with a specialized degreaser and use a soft-bristled brush to remove oil deposits. **The use of steel wool or hard objects for scrubbing is strictly prohibited** to prevent plate deformation, ionization needle bending, or disruption of the inter-plate spacing. After cleaning, rinse thoroughly with fresh water and ensure the assembly is completely dry—with no residual moisture—before reinstalling it into the unit to prevent high-voltage short circuits or electrical breakdown.
Although the electric field assembly can be cleaned repeatedly, it does not have an infinite lifespan. Long-term exposure to high-temperature oily residue and corrosion—as well as issues such as plate deformation, insulator damage, or breakage of ionization needles—can lead to permanent performance degradation, necessitating replacement. Under standard operating conditions and with regular maintenance and cleaning, the ESP electric field assembly can last between 3 and 8 years; however, in environments with heavy oil contamination, the cleaning frequency increases, and the service life is correspondingly reduced.
Proper maintenance of the ESP electric field stabilizes oil mist purification performance, reduces equipment malfunctions, and minimizes solid waste generation, thereby meeting environmental compliance requirements for industrial and commercial kitchens.