Abstract: The local air cleaning apparatus 1 causes a cleaned uniform air flow blown out from an air flow opening face 23 to collide with an air collision face W to flow outside an open region, so as to cause cleanliness to be higher inside a guide 3 and inside the open region than other regions. Additionally, the apparatus 1 includes at least one of a device for measuring pressures inside the guide 3 and inside a push hood 2, a device for measuring the cleanliness inside the guide 3 or of the open region, and a device for measuring a gap area between the guide 3 and the air collision face W, and, to ensure the cleanliness from a result of the measurement, controls such that a flow velocity of the cleaned uniform air flow blown out from the air flow opening face 23 can be decelerated or accelerated.

Abstract: A local air cleaning apparatus (1) is provided with a push hood (2) having an air flow opening face (23) for blowing out a cleaned uniform air flow and a guide (3) provided on a side of the push hood (2) having the air flow opening face (23), the guide (3) extending from the side thereof having the air flow opening face (23) toward a downstream side of the uniform air flow to form an opening face (31) at a downstream end portion thereof. The push hood (2) is arranged such that the uniform air flow blown out from the air flow opening face (23) passes through the inside of the guide (3) and then collides with an air collision face (W) on a downstream side of the opening face (31). The opening face (31) of the guide (3) is spaced apart from and opposed to the air collision face (W) to form an open region between the opening face (3) and the air collision face (W).

Abstract: A local air cleaning apparatus (1) is provided with push hoods (2, 3) having an air flow opening face (23) for blowing out a cleaned uniform air flow and a pair of guides (4, 5) provided on sides of the push hoods (2, 3) having the air flow opening faces (23), the guides (4, 5) extending from the sides thereof having the air flow opening faces (23) toward downstream sides of the uniform air flows to form opening faces (41, 51) at downstream-side end portions of the guides. The push hoods (2, 3) are arranged such that the respective air flow opening faces (23) are opposed to each other. The opening faces (41, 51) of the guides (4, 5), are spaced apart from and opposed to each other to form an open region between the opening faces (41, 51) of the respective guides (4, 5).

Abstract: Provided is a local clean zone forming apparatus which has an excellent operability and can provide an excellent clean air space without restricting the installation location or the purpose of an operation. In the local clean zone forming apparatus, a pair of push hoods having air blowing surfaces between which an airflow alignment mechanism is formed to form uniform airflows, are disposed so that the uniform airflows discharged from the push hoods are opposite to and collide with each other in a positional relationship wherein the air blowing surfaces are parallel to each other, and the centers of the air blowing surfaces are not directly opposite to each other; and the uniform airflows are obliquely discharged at an angle with respect to the air blowing surfaces.

Abstract: A purified air discharge device includes a push hood (2) having an air flow discharge surface (23) discharging a uniform purified air flow. The push hood (2) is provided with a lateral air discharger (28) for creating a purified air flow that collides against a surrounding wall that is formed as the push hood (2) is installed and that is situated close along the circumferential direction of the air flow discharge surface (23) of the push hood (2).

Abstract: The local air cleaning apparatus 1 causes a cleaned uniform air flow blown out from an air flow opening face 23 to collide with an air collision face W to flow outside an open region, so as to cause cleanliness to be higher inside a guide 3 and inside the open region than other regions. Additionally, the apparatus 1 includes at least one of a device for measuring pressures inside the guide 3 and inside a push hood 2, a device for measuring the cleanliness inside the guide 3 or of the open region, and a device for measuring a gap area between the guide 3 and the air collision face W, and, to ensure the cleanliness from a result of the measurement, controls such that a flow velocity of the cleaned uniform air flow blown out from the air flow opening face 23 can be decelerated or accelerated.

Abstract: The purified air discharge device comprises a push hood (2) comprising an air flow discharge surface (23) discharging a uniform purified air flow. The push hood (2) is provided with a lateral air discharger (28) for creating a purified air flow that collides against a surrounding wall that is formed as the push hood (2) is installed and that is situated close along the circumferential direction of the air flow discharge surface (23) of the push hood (2).

Abstract: A local air cleaning apparatus (1) is provided with a push hood (2) having an air flow opening face (23) for blowing out a cleaned uniform air flow and a guide (3) provided on a side of the push hood (2) having the air flow opening face (23), the guide (3) extending from the side thereof having the air flow opening face (23) toward a downstream side of the uniform air flow to form an opening face (31) at a downstream end portion thereof. The push hood (2) is arranged such that the uniform air flow blown out from the air flow opening face (23) passes through the inside of the guide (3) and then collides with an air collision face (W) on a downstream side of the opening face (31). The opening face (31) of the guide (3) is spaced apart from and opposed to the air collision face (W) to form an open region between the opening face (3) and the air collision face (W).

Abstract: A local air cleaning apparatus (1) is provided with push hoods (2, 3) having an air flow opening face (23) for blowing out a cleaned uniform air flow and a pair of guides (4, 5) provided on sides of the push hoods (2, 3) having the air flow opening faces (23), the guides (4, 5) extending from the sides thereof having the air flow opening faces (23) toward downstream sides of the uniform air flows to form opening faces (41, 51) at downstream-side end portions of the guides. The push hoods (2, 3) are arranged such that the respective air flow opening faces (23) are opposed to each other. The opening faces (41, 51) of the guides (4, 5), are spaced apart from and opposed to each other to form an open region between the opening faces (41, 51) of the respective guides (4, 5).

Abstract: Provided is a local clean zone forming apparatus which has an excellent operability and can provide an excellent clean air space without restricting the installation location or the purpose of an operation. In the local clean zone forming apparatus, a pair of push hoods having air blowing surfaces between which an airflow alignment mechanism is formed to form uniform airflows, are disposed so that the uniform airflows discharged from the push hoods are opposite to and collide with each other in a positional relationship wherein the air blowing surfaces are parallel to each other, and the centers of the air blowing surfaces are not directly opposite to each other; and the uniform airflows are obliquely discharged at an angle with respect to the air blowing surfaces.

Abstract: A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas by irradiating ultraviolet rays whose wavelength is less than 300 nm to the polluted liquid or the polluted gas containing the organic compound. An acid electrolytic water feed pipe and an alkali electrolytic water feed pipe are respectively connected to the intermediate product treatment apparatus through valves to neutralize an intermediate product, which results from decomposition of the organic compound, for decomposition by selectively adding strong alkali electrolytic water and strong acid electrolytic water to the polluted liquid or the polluted gas containing the intermediate product.

Abstract: A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas by irradiating ultraviolet rays whose wavelength is less than 300 nm to the polluted liquid or the polluted gas containing the organic compound. An acid electrolytic water feed pipe and an alkali electrolytic water feed pipe are respectively connected to the intermediate product treatment apparatus through valves to neutralize an intermediate product, which results from decomposition of the organic compound, for decomposition by selectively adding strong alkali electrolytic water and strong acid electrolytic water to the polluted liquid or the polluted gas containing the intermediate product.

Abstract: A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas by irradiating ultraviolet rays whose wavelength is less than 300 nm to the polluted liquid or the polluted gas containing the organic compound. An acid electrolytic water feed pipe and an alkali electrolytic water feed pipe are respectively connected to the intermediate product treatment apparatus through valves to neutralize an intermediate product, which results from decomposition of the organic compound, for decomposition by selectively adding strong alkali electrolytic water and strong acid electrolytic water to the polluted liquid or the polluted gas containing the intermediate product.

Abstract: A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas by irradiating ultraviolet rays whose wavelength is less than 300 nm to the polluted liquid or the polluted gas containing the organic compound. An acid electrolytic water feed pipe and an alkali electrolytic water feed pipe are respectively connected to the intermediate product treatment apparatus through valves to neutralize an intermediate product, which results from decomposition of the organic compound, for decomposition by selectively adding strong alkali electrolytic water and strong acid electrolytic water to the polluted liquid or the polluted gas containing the intermediate product.