Particulate matter collecting apparatus
A particulate matter collecting apparatus includes a duct, a water sprayer, a micro-channel forming unit, and an impactor. A gas-liquid mixed fluid is formed by spraying water to air flowing along the inside of the duct using the water sprayer. The gas-liquid mixed fluid collides with a collision plate of the impactor after passing through a plurality of micro-channels provided in the micro-channel forming unit. Particulate matter in air is collected by droplets or a liquid film formed on the plurality of micro-channels and the collision plate. Water flowing down from the plurality of micro-channels is discharged through a first water outlet.
1. A particulate matter collecting apparatus, comprising:
a duct through which air flows;
a water sprayer which sprays water inside the duct to form a gas-liquid mixed fluid;
a micro-channel forming unit defining a plurality of micro-channels through which the gas-liquid mixed fluid passes and including a first water outlet which discharges water flowing down from the plurality of micro-channels; and
an impactor including a plurality of collision plates with which the gas-liquid mixed fluid passing through the plurality of micro-channels collides,
wherein the first water outlet is formed to be opened downward on a bottom of the micro-channel forming unit.
2. The particulate matter collecting apparatus of claim 1 , wherein exits of the plurality of micro-channels are arranged regularly.
3. The particulate matter collecting apparatus of claim 2 , wherein each of the plurality of collision plates faces at least one exit column of the plurality of micro-channels.
4. The particulate matter collecting apparatus of claim 3 , wherein the plurality of collision plates extends in a gravity direction, and is arranged in a direction orthogonal to the gravity direction.
5. The particulate matter collecting apparatus of claim 1 , wherein the micro-channel forming unit comprises a plurality of beads stacked in two or more layers in a flow direction of the gas-liquid mixed fluid, and the plurality of micro-channels is defined by pores between the plurality of beads.
6. The particulate matter collecting apparatus of claim 5 , further comprising an opening plate located between the micro-channel forming unit and the impactor, and in which regular openings are defined.
7. The particulate matter collecting apparatus of claim 5 , wherein the micro-channel forming unit is provided in plural, and the plurality of micro-channel forming units is stacked in the flow direction of the gas-liquid mixed fluid.
8. The particulate matter collecting apparatus of claim 7 , wherein a diameter of the bead in at least one of the plurality of micro-channel forming units is different from diameters of the beads in remaining micro-channel forming units.
9. The particulate matter collecting apparatus of claim 7 , wherein the impactor is provided in plural, and the plurality of impactors is arranged at downstream sides of the plurality of micro-channel forming units, respectively.
10. A particulate matter collecting apparatus comprising:
a duct through which air flows;
a water sprayer which sprays water inside the duct to form a gas-liquid mixed fluid;
a micro-channel forming unit including a channel forming frame and a plurality of beads stacked in two or more layers in a flow direction of the gas-liquid mixed fluid in the channel forming frame to define a plurality of micro-channels through which the gas-liquid mixed fluid passes; and
an impactor including a plurality of collision plates which are arranged at intervals and with which the gas-liquid mixed fluid passing through the plurality of micro-channels collides,
wherein a liquid film formed by the water is formed on surfaces of the plurality of micro-channels, and
the channel forming frame is provided with a first water outlet which discharges water flowing down along the surfaces of the plurality of micro-channels.
11. The particulate matter collecting apparatus of claim 10 , wherein the plurality of collision plates extends in a gravity direction, and is arranged in a direction orthogonal to the gravity direction.
12. The particulate matter collecting apparatus of claim 10 , wherein the diameters of the plurality of beads are not uniform.
13. The particulate matter collecting apparatus of claim 12 , further comprising an opening plate located between the micro-channel forming unit and the impactor, and in which regular openings are defined.
14. The particulate matter collecting apparatus of claim 10 , wherein the diameters of the plurality of beads are the same.
15. The particulate matter collecting apparatus of claim 10 , wherein the micro-channel forming unit is provided in plural, and the plurality of micro-channel forming units is stacked in the flow direction of the gas-liquid mixed fluid.
16. The particulate matter collecting apparatus of claim 15 , wherein a diameter of the bead in at least one of the plurality of micro-channel forming units is different from diameters of the beads in remaining micro-channel forming units.
17. The particulate matter collecting apparatus of claim 15 , wherein the impactor is provided in plural, and the plurality of impactors is arranged at downstream sides of the plurality of micro-channel forming units, respectively.
18. The particulate matter collecting apparatus of claim 10 , wherein a liquid film formed by the water is formed on surfaces of the plurality of collision plates, and the impactor comprises a second water outlet which discharges water flowing down along the plurality of collision plates.
19. The particulate matter collecting apparatus of claim 10 , wherein the duct is provided with at least one water outlet.
20. A particulate matter collecting apparatus comprising:
a duct through which air flows;
a water sprayer which sprays water inside the duct to form a gas-liquid mixed fluid;
a micro-channel forming unit including a channel forming frame and a plurality of beads stacked in two or more layers in a flow direction of the gas-liquid mixed fluid in the channel forming frame to define a plurality of micro-channels through which the gas-liquid mixed fluid passes; and
an impactor including a plurality of collision plates which are arranged at intervals and with which the gas-liquid mixed fluid passing through the plurality of micro-channels collides,
wherein diameters of the plurality of beads are not uniform.