| 摘要 |
PURPOSE:To provide a simple structure and certain operation of the safety valve in the caption, by establishing such a procedure as opening an air escape duct in respnse to retreat of a valve body when the air pressure inside an air chamber exceeds the set level. CONSTITUTION:When mountainous waves come to attack and the pressure of air A, inside an air chamber 1 exceeds the set level in respnse to sudden, rise of a wave W inside the air chamber 1, the valve body 16 of a safety valve 13 is pushed up by air pressure to open an air escape duct 14 from which abnormally high pressure air, is discharged into the atmosphere. When the air pressure inside the air chamber 1 drops beyond the set level, the valve body 16 sits on the outlet of the air escape duct 14 as shown by solid lines in fig, and the air escape duct 14 is closed. |
