Bipolar pre-charging device with single power supply transverse rod

A pre-charged, single power supply technology, applied in the field of dust removal, can solve the problem of difficult charging of dust, and achieve the effect of simple production, favorable electrostatic coagulation, and large dust collection area

Inactive Publication Date: 2019-01-04
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem with this bipolar pre-charging device is that the dust enters the positive corona area immediately after entering the negative corona area, making it difficult for the dust to be fully charged.

Method used

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  • Bipolar pre-charging device with single power supply transverse rod
  • Bipolar pre-charging device with single power supply transverse rod
  • Bipolar pre-charging device with single power supply transverse rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An electrostatically enhanced fiber filter and dust removal equipment composed of a horizontal rod curtain bipolar pre-charged device and a bag filter, such as figure 1 shown. The dust removal equipment is composed of an air intake box 1, a preload electrical appliance 11, a high-voltage cable 3, a high-voltage DC power supply 4, a grounding cable 5, a bag filter 7, and an air outlet box 8. The air intake box 1 is fixedly connected to the inlet end of the preloader 11, the outlet end of the preloader 11 and the inlet end of the bag filter 7 are fixedly connected by a flange 6, and the outlet end of the bag filter 7 is connected to the outlet box 8 Fixed link.

[0033] The structure of the preloader 11 is as Figure 1~3 As shown: the cathode tube groups 2 and the cathode corona wires 12 are alternately fixed on the cathode rod curtain frame 13, and the anode tube groups 10 and the anode corona wires 9 are alternately fixed on the anode rod curtain frame 14. The cathod...

Embodiment 2

[0042] An electrostatic coagulation and dust removal equipment composed of a horizontal rod curtain bipolar pre-charging device and an electrostatic precipitator, such as Figure 4 Shown, except following structure, all the other are with embodiment 1.

[0043] In the composition of the electrostatic condensation and dust removal equipment, the outlet end of the pre-charger 11 is fixedly connected to the inlet end of the electrostatic precipitator 15 through the flange 6, and the outlet end of the electrostatic precipitator 15 is fixedly connected to the gas outlet box 8.

[0044] Such as Figure 5 As shown, in each cathode rod curtain frame 13, cathode corona wires 12 and cathode tube groups 2 are alternately and evenly arranged. Cathode tube group 2 is composed of four circular tubes with a diameter of 20 mm arranged equidistantly, and the distance between the circular tubes is equal to the diameter of the circular tubes. The width of the cathode tube group 2 is 140 mm, an...

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Abstract

The invention relates to a bipolar pre-charging device with single power supply transverse rod. According to the technical scheme, the device comprises a pre-charging electric appliance, a dust remover and an air inlet box and air outlet box which are arranged at the two ends of the device. A plurality of cathode rod frames and anode rod frames are vertically, uniformly and alternately arranged inthe pre-charging electric appliance along an air flow direction; a plurality of cathode corona wires and cathode tube groups are alternately and uniformly arranged on the cathode rod frames, and a plurality of anode corona wires and anode tube groups are alternately and uniformly arranged on the anode rod frames; the cathode corona wires and the adjacent anode tube groups form a negative electricfield, and the anode corona wires and the adjacent cathode tube groups form a positive electric field; the cathode rod frames are connected with the high-voltage output end of a high-voltage direct current power supply through a high-voltage cable, and the anode rod frames are connected with a grounding electrode of the high-voltage direct current power supply through a grounding cable. The device aims at providing a single power supply bipolar pre-charging device which can simultaneously achieve dust pre-charging and electrostatic coagulation, is easy in removing ash and has high purification efficiency on fine matters.

Description

technical field [0001] The invention belongs to a pre-charging device in the field of dust removal, in particular to a bipolar pre-charging device for single-power horizontal rod curtains. Background technique [0002] The dust pre-charging device is a device that charges the dust before it is installed in the dust collector. The purpose is to improve the dust removal efficiency of the dust collector through electrostatic enhancement. [0003] The dust pre-charging device is divided into unipolar pre-charging device and bipolar pre-charging device. [0004] Unipolar pre-charging is to apply a DC high voltage between the wire-plate electrodes to cause the corona wire discharge to generate an ion flow. When the dust-containing gas passes between the wire-plate electrodes, the dust is charged with a polarity of charge. [0005] Bipolar pre-charging is to use two DC high-voltage power supplies with opposite polarities. A positive DC high voltage is applied between one of the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/40B03C3/41B03C3/017
CPCB03C3/40B03C3/017B03C3/41B03C2201/04
Inventor 向晓东李梦玲李雪娥
Owner WUHAN UNIV OF SCI & TECH
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