| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust deodorization system for an underground structure in which pressure generated within an underground structure such as a sewer pipeline can be surely released to the outside and smell within the underground structure can be prevented from being leaked to the outside, in a simple configuration. <P>SOLUTION: An exhaust deodorization system 1 is installed within an opening of an underground structure 14 and closes the opening. The exhaust deodorization system comprises an approximately conical body 2 of which the diameter is reduced from up to down, a plurality of pressure exhaust holes 3 with which the body 2 is penetrated, a valve element 4 which covers the pressure exhaust holes 3 from the inside of the body 2 and is fixed partially to the body 2, a drain port 6 which is formed in a lower end of the body 2, a valve unit 7 which is mounted so as to cover the drain port 6, and a mounting part 24 which is provided in the body 2 and becomes a portion to mount the body 2 within the opening of the underground structure. <P>COPYRIGHT: (C)2013,JPO&INPIT |
