LOCAL AIR CLEANING APPARATUS

摘要

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). The cleaned uniform air flow blown out from the air flow opening face (23) collides with the air collision face (W) and flows out of the opening region, thereby allowing the inside of the guide (3) and the inside of the open region to have higher cleanliness than other regions.

主权项

1. A local air cleaning apparatus comprising:
a push hood comprising an air flow opening face for blowing out a cleaned uniform air flow and a guide provided on a side of the push hood comprising the air flow opening face, the guide extending from the side thereof comprising the air flow opening face toward a downstream side of the uniform air flow to form an opening face at an downstream-side end portion of the guide, wherein the push hood is arranged such that the cleaned uniform air flow blown out from the air flow opening face passes through the inside of the guide and then collides with an air collision face on a downstream side of the opening face of the guide; the opening face of the guide is spaced apart from and opposed to the air collision face to form an open region between the opening face of the guide and the air collision face; and the cleaned uniform air flow blown out from the air flow opening face collides with the air collision face to flow out of the open region so as to cause the inside of the guide and the inside of the open region to have higher cleanliness than other regions.