Electrostatic air filter
An electronic air filter containing a tubular collecting electrode and an ion emitting electrode located concentrically inside of the tube-like collecting electrode, the collecting electrode consists of outer electrically conductive shell and inner layer made of open cell porous material.
1. An electrostatic air filter comprising:
a tubular collecting electrode;
an ion emitting electrode located coaxially inside said tubular collecting electrode, wherein said tubular collecting electrode includes a tubular electrically conductive layer and an inner open cell porous layer inside said tubular electrically conductive layer.
2. The electrostatic air filter according to claim 1 , wherein said ion emitting electrode is a thin wire.
3. The electrostatic air filter according to claim 1 , wherein said ion emitting electrode has sharp ion emitting components.
4. The electrostatic air filter according to claim 3 , wherein said sharp ion emitting components are barbs.
5. The electrostatic air filter according to claim 1 , wherein said tubular collecting electrode is a flexible tubular collecting electrode and said ion emitting electrode is centered within said flexible tubular electrode.
6. The electrostatic air filter according to claim 5 , further comprising non-conductive supports between said tubular collecting electrode and said ion emitting electrode.
7. The electrostatic air filter according to claim 1 , further comprising an ionizer located at an inlet side of said collecting electrode.
8. The electrostatic air filter according to claim 1 , further comprising a plurality of tubular collecting electrodes, each having an ion emitting electrode; and wherein said plurality of tubular electrodes are assembled in a honeycomb configuration.
9. The electrostatic air filter according to claim 8 , wherein said collecting electrodes are supported by walls and said ion emitting electrodes are supported by non-conductive supports.
10. The electrostatic air filter according to claim 9 , further comprising non-conductive media separating said walls.