CN2423030Y

CN2423030Y - Electrostatic condensation electric dust separater

Info

Publication number: CN2423030Y
Application number: CN00229026U
Authority: CN
Inventors: 向晓东; 李传贵; 刘功智
Original assignee: Safety Science And Technology Research Center Of State Economic And Trade Commission; Wuhan University of Science and Engineering WUSE
Current assignee: Safety Science And Technology Research Center Of State Economic And Trade Commission; Wuhan University of Science and Engineering WUSE; Wuhan University of Science and Technology WHUST
Priority date: 2000-01-07
Filing date: 2000-01-07
Publication date: 2001-03-14
Anticipated expiration: 2010-01-07

Abstract

The utility model relates to an electrostatic dust remover, which adopts a variable frequency alternate current high voltage power supply (1) to enable a corona pole wire (2) to discharge to generate an ion current; the corona pole wire (2), an auxiliary pole plate (3), and a grounding pole plate (4) form an alternating electric field; after dust enters the electric field, the dust is collided with the ion current to be with positive charges or negative charges; the dust with charges generate violent vibration under the action of the alternating electric field power, and thereby, dust with charges are mutually attracted and collided with each other to condense larger dust pastes; when dust with charges reaches larger motion amplitude, dust with charges can directly beat the auxiliary pole plate (3) or the grounding pole plate (4) and be collected, and thereby, dust removing efficiency to dust can be remarkably enhanced.

Description

Static cohesion electric cleaner

The utility model belongs to dust arrester.Relate in particular to a kind of high voltage electrostatic dust precipitator.

The high-effective dust-removing equipment that micronic dust, particularly sub-micron dust are collected in development is a developing direction in current dedusting technology field.And existing electric cleaner adopts is that high direct voltage is carried out the charged of dust and collected, and for less than 5 microns dust, its efficiency of dust collection is difficult to reach 50%.

The purpose of this utility model provides a kind of static cohesion electric cleaner that significantly improves the fine dust efficiency of dust collection.

For achieving the above object, the technical scheme that the utility model adopted is: adopt the power supply of Frequency Adjustable ac high voltage source, the output of Frequency Adjustable ac high voltage source links to each other with corona polar line.

The output of Frequency Adjustable ac high voltage source links to each other with auxiliary pole plate, and auxiliary pole plate is between the ground connection pole plate.

Because adopt this scheme, the utility model can make the efficiency of dust collection of fine dust significantly improve, especially can reach 90% for efficiency of dust collection less than 5 microns dust.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is a work schematic diagram of the present utility model.

As shown in Figure 1, the utility model adopts Frequency Adjustable high voltage source [1] power supply, the output of frequency modulation ac high voltage source [1] links to each other with metal corona polar line [2], when the average field intensity between corona polar line [2] and the ground connection pole plate [4] reaches every cms kilovolt, corona polar line [2] discharge, alternately produce cation and anion, cation or anion and enter grit in the electric field and collide and be attached on the grit make a part of grit positively charged and another part is electronegative.Adopt this charged mode, the carried charge that can make two kinds of polarity dust about equally and can mix more equably, this just helps two kinds of polarity dust generation static cohesions under the effect of Coulomb force.In addition, be AC high voltage owing to what apply, then between corona polar line [2] and ground connection pole plate [4], form alternating electric field.Charged grit produces high vibration under the effect of alternating electric field power, thereby has greatly improved the cohesion speed between different in nature charged grit.Theoretical show with experimental result: when the frequency of suitably adjusting alternating voltage, can make amplitude greater than 0.01 micron charged dust greater than 10 centimetres, big like this amplitude is enough to make dust directly to strike ground connection pole plate [4] and is captured.

For the uniformity that improves electric-field intensity and the effective area of dust collecting pole plate, the auxiliary pole plate [3] that is connected with Frequency Adjustable ac high voltage source [1] can be set between ground connection pole plate [4].When auxiliary pole plate [3] was negative high voltage, the positively charged dust drove into to auxiliary pole plate [3], and electronegative dust moves to ground connection pole plate [4].On the contrary, when auxiliary pole plate [3] was positive high voltage, electronegative dust was to auxiliary pole plate [3] sedimentation, and the positively charged dust is to ground connection pole plate [4] sedimentation.Purge mode is identical with conventional electric cleaner with structural design.

Claims

1. a static cohesion electric cleaner is characterized in that adopting Frequency Adjustable ac high voltage source [1] power supply, and the output of Frequency Adjustable ac high voltage source [1] links to each other with corona polar line [2].

2. static cohesion electric cleaner according to claim 1 is characterized in that the output of Frequency Adjustable ac high voltage source [1] links to each other with auxiliary pole plate [3], and auxiliary pole plate [3] is positioned between the ground connection pole plate [4].