| 摘要 |
<p>PURPOSE:To improve the silencing effect and to obtain a silencer with a small size and low cost by providing a plurality of air chambers connected to a water conduit at a specific distance of the water conduit. CONSTITUTION:Air chambers A, B of a water conduit 4 are provided by utilizing the T-joints 6 connected to the both sides of the water conduit 4, and a short pipe 8 with a flange 7 is screwed into the aperture section of a branch pipe 6a. A wire mesh support metal 9, a packing 10, the periphery of a transparent plastic plate 11, and a flange body 12 are stacked on the upper section of the flange in sequence and are fixed in one body. Then, the aperture section of the branch pipe 6a is blocked liquidtight with the plastic plate 11 to form the upward expansion section S of the conduit 4, and the aperture periphery of a bag-shaped wire mesh 15 expanding downward is fitted to the inner periphery of the wire mesh support metal 9. Furthermore, a ball 16 made of rubber or plastics and filled with air is stored in the wire mesh 15, and the distance l1 between the air chambers A, B is restricted to the length nearly equal to 1/8 of the pulsating wave length of the water flowing through the conduit 4.</p> |
