Rapping soot blowing device for high-voltage electrostatic dust collector and rapping method thereof
A soot blowing device and high-voltage electrostatic technology, which is applied in the field of rapping devices, can solve the problems of increased boiler induced draft fan capacity, long construction period, and large power consumption, and achieve an increase in the average value of effective current, improved efficiency, and small fluctuations Effect
Inactive Publication Date: 2013-12-18
李程昊
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Problems solved by technology
For this reason, the large-scale high-voltage electrostatic precipitators used in domestic industrial boilers, especially power plant boilers, have to undergo secondary transformation, dismantling or adding a bag filter in the rear stage, and the capacity of the boiler induced draft fan also needs to be increased, which requires a large investment and a long construction period. , high power consumption, resulting in huge waste
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[0025] Below in conjunction with accompanying drawing, the present invention is described in detail:
[0026] 1. Change the power supply of the high-voltage electrostatic precipitator from single-phase power supply to three-phase power supply
[0027] Such as figure 1 As shown, the basic principle of single-phase high-voltage rectified power supply: single-phase 380VAC / 50HZ power frequency AC signal, after phase-shifting and voltage regulation by silicon controlled rectifier, transformer boosting and rectification, the waveform is 100HZ pulsating signal
[0028] Such as figure 2 As shown, the high-voltage electrostatic precipitator of the present invention adopts a three-phase high-voltage rectifying power supply, and the basic principle is: the three-phase system adopts three-phase 380V AC input, through three-way six thyristor anti-parallel voltage regulation, and boosted by a three-phase transformer , Three-phase bridge rectifier, paralleled into a DC high-voltage signal...
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The invention relates to a rapping device for a high-voltage electrostatic dust collector, in particular to a rapping device, which is used for realizing rapping through a PLC (Programmable Logic Controller) control system or a DCS (Distributed Control System). A rapping soot blowing device for a high-voltage electrostatic dust collector comprises a cathode rapping mechanism for rapping a cathode plate and an anode rapping mechanism for rapping an anode plate, wherein the anode plate and the cathode plate are arranged on the lower part of a polar plate suspension beam; the cathode rapping mechanism comprises a cathode rapping shaft and a cathode rapping hammer; the anode rapping mechanism comprises an anode rapping shaft and an anode rapping hammer; the anode rapping mechanism and the cathode rapping mechanism are connected with the PCL control system or the DCS in a controlled way; and suspension beams on the upper parts of the cathode plate and anode plate are provided with soot blowers. The soot blowing device has the advantage of high rapping efficiency.
Description
technical field [0001] The invention relates to a rapping device of a high-voltage electrostatic precipitator, in particular to a rapping device which realizes rapping through a PLC control system or a DCS control system. Background technique [0002] As a kind of industrial boiler flue gas purification equipment with mature technology, relatively simple manufacturing process and low maintenance cost, high-voltage electrostatic precipitator has been widely and widely used in the air pollution control industry for a long time. However, with the improvement of environmental protection emission standards in recent years (the new standard is 50mg / m3), many active electrostatic precipitators cannot meet the new standards and have to undergo secondary renovations. At the same time, new projects are also facing the pressure of new environmental protection standards. . The traditional method of widening, lengthening, and enlarging the dust collector belongs to the improvement of th...
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IPC IPC(8): B03C3/74B03C3/76B03C3/80
Inventor 李程昊
Owner 李程昊