The copper casting electric heater filter is composed of a body, stainless steel filter mesh, transmission device, drainage section, and electrical control section. The water to be filtered enters through the water inlet, passes through the filter mesh of the filter, and then enters the pipeline for the process cycle via the outlet. During the cycle, many particles and impurities in the water are intercepted by the filter mesh.
Over time, the trapped impurities accumulate, causing the filter pores to become smaller, leading to a pressure difference between the import and export. When the pressure difference reaches the set value, an electrical signal is sent to the controller. The control system then activates the drive motor, which rotates the shaft through the transmission components, while simultaneously opening the drain port to clear the dirt. After the cleaning is complete, the system returns to its initial state, and it operates normally. Filters can be categorized by function into self-cleaning filters, fully automatic filters, brush filters, and elastic filters. In general, elastic filters are used in explosion-proof electric heating systems, which are maintenance-free and automatically cleaned, thus avoiding the risk of filter cores becoming blocked due to prolonged operation.
No electric heater has an indefinite lifespan; certain components will gradually wear, corrode, scratch, oxidize, age, and deform over time. Therefore, regular maintenance of electric heaters is essential to reduce unnecessary malfunctions. Electric heaters are a special industrial furnace that is safe, energy-efficient, operates at low pressure, and can provide high-temperature heat energy. They use thermal oil as the heat carrier, circulated by a thermal oil pump to transfer heat to the heat-using equipment. During maintenance, it is important to avoid dust accumulation in the electrical control cabinet, which should be regularly cleaned with compressed air to ensure good electrical contact.
Heating elements should not exceed the allowable high temperature. Generally, after six months of use, the thermal oil should be sampled and tested every 2 to 3 months, and attention should be paid not to mix different types of oil. Additionally, the temperature measuring instruments should be checked regularly, and periodic measurements should be taken to prevent the thermal resistance at the temperature measuring points from increasing, which could lead to inaccurate temperatures and erroneous operations.
Four main causes of fires involving electric heaters: placing an electrified heater on flammable materials or near combustible items, leading to fires due to prolonged high-temperature baking; lack of a plug on the electric heater, resulting in direct insertion of the wire into the outlet, which can easily cause a short circuit and fire; failure to unplug the heater when leaving, leading to overheating and ignition of nearby flammable materials; and continued use of a resistor wire that has been repeatedly repaired, which can cause overloading of the circuit and trigger a fire.
