SHWBElectrostatic precipitator

SHWBCharacteristics of electrostatic precipitator

1.High dust removal efficiency. Electric dust collectors can improve capture efficiency by extending the length of the electric field, and are widely used3The electrostatic precipitator with an electric field can achieve a capture rate of up to when the dust state in the flue gas is in a normal state99%above; If used4One5The efficiency of an electric field dust collector can still be improved.

2.The device has low resistance and overall energy consumption. The energy consumption of electrostatic precipitators is mainly composed of equipment resistance loss, power supply device, electric heating insulation, and vibration motor energy consumption, while the resistance loss of other dust collectors is the main energy consumption, accounting for a large share of the total energy consumption. The resistance of electrostatic precipitators is generally only200~300Pa,About the bag filter1/5Due to its lower overall energy consumption and infrequent replacement of vulnerable parts, the operating cost is much lower than that of bag filters and other similar devices.

3.Widely applicable, electrostatic precipitators can capture particles with a diameter smaller than0.1umParticles300~400High temperature flue gas at ℃; Wet electrostatic precipitators can not only remove dust, but also remove water mist and acid mist from flue gas. When various parameters of flue gas fluctuate within a certain range, the electrostatic precipitator can still maintain good capture performance.

4.Due to its modular structure, the high air volume flue gas electrostatic precipitator can achieve large-scale installation. At present, the flue gas treatment capacity of a single electrostatic precipitator can reach2×10⁴m³/h. It is not easy to handle such a large amount of smoke with a bag filter.

5.The one-time investment is relatively large, and compared with other dust removal equipment, electrostatic precipitators have complex structures and consume more steel. Each electric field requires a set of high-voltage power supply and control devices, so the price is relatively expensive.

structure

The basic structure of an electrostatic precipitator consists of two main parts: the electric field body and the power supply. The structure of the electric field body consists of an anode, a cathode, a dust cleaning system, a casing, and other parts.

1. Anode

The anode is the main component of an electrostatic precipitator, responsible for dust collection and has a significant impact on the performance of the electrostatic precipitator. Its mass accounts for the entire equipment1/4~1/3It is necessary to scientifically organize and design the anode.

2. Cathode

The cathode is the electrode in an electrostatic precipitator that produces corona discharge on gas. It consists of three parts: corona wire and frame, suspension device, and insulation support.

3. Dust cleaning device

Timely remove the smoke and dust adhering to the cathode, anode, and airflow distribution plate to avoid blocking the distribution plate, cathode, and anode with smoke and dust. Otherwise, the sticking dust will cause back corona and corona blocking phenomenon. The cleaning methods include wet cleaning, mechanical cleaning, and sonic cleaning.

4. Shell

The shell of an electrostatic precipitator is the enclosure layer of the equipment. The shell accommodates and supports the cathode, anode, and airflow distribution plate; Anode and cathode vibration mechanism; Air inlet and outlet, internal and external operating platforms, maintenance doors, ladders, rain shelters, insulation layers; Smoke and other loads. It is also a passage for smoke, and it is a huge building that needs to consider wind, snow, and earthquake loads.