Adjustable eddy electrostatic precipitator

• US 20050000361A1
• Filed: 10/27/2003
• Published: 01/06/2005
• Est. Priority Date: 07/02/2003
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Hsu, Pin-Chao, Liang, Pei-Fang, Chang, Chia-Yuan, Chang, Kai-Cheng
• Granted Patent: US 6,962,620 B2
• Time in Patent Office: Days
• US Class Current: 96/61
• CPC Class Codes: B03C 2201/10 Ionising electrode has multiple serrated ends or parts
• CPC Class Codes: B03C 3/32 Transportable units, e.g. for cleaning room air
• CPC Class Codes: B03C 3/36 Controlling flow of gases or vapour
• CPC Class Codes: B03C 3/41 Ionising-electrodes

Abstract

An adjustable eddy electrostatic precipitator, comprising a main body, an electrode array, an adjustable opening and a precipitating device. The main body has an inner space with an air guiding plate of helical shape, an entrance for air and an exit for air. The electrode array is placed close to the entrance, ionizing air as well as particles floating therein. The adjustable opening is located at the exit, having an adjustable aperture. The precipitating device is connected with a bias high voltage for adsorbing ionized particles. Air entering the main body through the entrance is ionized, ionizing particles floating therein. Ionized particles are driven towards a single zone and are collected depending on size and charge in an adjustable manner.

Claims

1. An adjustable eddy electrostatic precipitator, comprising:

a main body, having an inner space with an air guiding plate of helical shape, an entrance for air and an exit for air;

an electrode array close to said entrance, ionizing particles floating in air;

an adjustable opening at said exit, having an adjustable aperture; and

a precipitating device, connected with a bias high voltage, for adsorbing ionized particles.

2. The adjustable eddy electrostatic precipitator according to claim 1, wherein a fan is mounted at said entrance or said exit.

3. The adjustable eddy electrostatic precipitator according to claim 1, wherein said inner space of said main body is shaped like a truncated cone, with said air guiding plate being shaped like a helix of decreasing diameter.

4. The adjustable eddy electrostatic precipitator according to claim 1, wherein said inner space of said main body is shaped like a cylinder, with said air guiding plate being shaped like a helix of constant diameter.

5. The adjustable eddy electrostatic precipitator according to claim 1, wherein said adjustable opening is an iris diaphragm with an adjustable aperture.

6. The adjustable eddy electrostatic precipitator according to claim 1, wherein said adjustable opening is a slit opening with an adjustable width.

7. The adjustable eddy electrostatic precipitator according to claim 6, wherein said adjustable opening has opaque plates gliding between a pair of rails.

8. The adjustable eddy electrostatic precipitator according to claim 1, wherein said electrode array has a plurality of pointed electrodes.

9. The adjustable eddy electrostatic precipitator according to claim 1, wherein said electrode array has a plurality of rack-shaped linear electrodes.

10. The adjustable eddy electrostatic precipitator according to claim 1, wherein said electrode array has a grid.

11. The adjustable eddy electrostatic precipitator according to claim 1, wherein said precipitating device has a flat surface facing said main body.

12. The adjustable eddy electrostatic precipitator according to claim 1, wherein said precipitating device is shaped like an obtuse cone.

13. The adjustable eddy electrostatic precipitator according to claim 1, wherein said precipitating device is shaped like a cylinder.

14. The adjustable eddy electrostatic precipitator according to claim 5, wherein said adjustable opening has a plurality of circular plates.

15. The adjustable eddy electrostatic precipitator according to claim 14, wherein each of said circular plates has a fixed bolt at a fixed position on said main body and a movable bolt revolving around said fixed bolt for varying said adjustable aperture.

16. The adjustable eddy electrostatic precipitator according to claim 13, wherein said precipitating device has an axial wire connected with high voltage.

17. The adjustable eddy electrostatic precipitator according to claim 1, wherein said air guiding plate covers at least one full twist.

18. The adjustable eddy electrostatic precipitator according to claim 8, wherein said pointed electrodes of said electrode array are set on a section of said air guiding plate close to said entrance.

19. The adjustable eddy electrostatic precipitator according to claim 9, wherein said rack-shaped electrodes of said electrode array are set on a section of said air guiding plate close to said entrance.