초록 ▼

An air-cleaning apparatus and air-cleaning method whereby air is cleaned with an air flow containing ions and ozone generated by corona discharge. The apparatus has a wind tunnel part including a trumpet-shaped member (3) having an opening at the bottom thereof and a cylindrical member (4) connected

An air-cleaning apparatus and air-cleaning method whereby air is cleaned with an air flow containing ions and ozone generated by corona discharge. The apparatus has a wind tunnel part including a trumpet-shaped member (3) having an opening at the bottom thereof and a cylindrical member (4) connected to the opening at the bottom of the trumpet-shaped member (3). The wind tunnel part has a titanium dioxide metal evaporated onto the surface thereof. A needle electrode (1) is placed in front of the trumpet-shaped member (3) of the wind tunnel part near an axis of the trumpet-shaped member (3). An annular electrode is formed on the inner surface of the wind tunnel part. A high-voltage generating unit applies a high voltage between the needle electrode (1) and the annular electrode (2). A housing (10) accommodates the needle electrode (1), the annular electrode (2) and the wind tunnel part and has an air inlet (11) on a side thereof closer to the needle electrode. The housing (10) further has an air outlet (12) on a side thereof closer to the cylindrical member of the wind tunnel part. Corona discharge is induced by applying a high voltage between the needle and annular electrodes, thereby generating an air flow containing ions and ozone and thus cleaning air.

대표청구항 ▼

An air-cleaning apparatus and air-cleaning method whereby air is cleaned with an air flow containing ions and ozone generated by corona discharge. The apparatus has a wind tunnel part including a trumpet-shaped member (3) having an opening at the bottom thereof and a cylindrical member (4) connected

An air-cleaning apparatus and air-cleaning method whereby air is cleaned with an air flow containing ions and ozone generated by corona discharge. The apparatus has a wind tunnel part including a trumpet-shaped member (3) having an opening at the bottom thereof and a cylindrical member (4) connected to the opening at the bottom of the trumpet-shaped member (3). The wind tunnel part has a titanium dioxide metal evaporated onto the surface thereof. A needle electrode (1) is placed in front of the trumpet-shaped member (3) of the wind tunnel part near an axis of the trumpet-shaped member (3). An annular electrode is formed on the inner surface of the wind tunnel part. A high-voltage generating unit applies a high voltage between the needle electrode (1) and the annular electrode (2). A housing (10) accommodates the needle electrode (1), the annular electrode (2) and the wind tunnel part and has an air inlet (11) on a side thereof closer to the needle electrode. The housing (10) further has an air outlet (12) on a side thereof closer to the cylindrical member of the wind tunnel part. Corona discharge is induced by applying a high voltage between the needle and annular electrodes, thereby generating an air flow containing ions and ozone and thus cleaning air. . A radially movable cutter, preferably a plasma arc torch, is attached to the distal end of the ram. A drive mechanism, containing motors and mechanical hardware for operating the ram and cylinder, is attached to the proximal end of the housing. The ram and cylinder provide for moving the cutter axially and circumferentially, and a cable assembly attached to a remote motor provide for the movement of the cutter radially, within the pipe. The control system can be adjusted and operated remotely to control the position and movement of the cutter to obtain the desired cut. The control system can also provide automatic standoff control for a plasma arc torch.