| 摘要 |
<p>PURPOSE: To provide a damping device having no movable parts which is emptied when a pump is stopped by guiding a feed line and a discharge line for a medium to be fed into a small pipe with both ends closed through one of the closed ends, and providing at least a discharge opening for the discharge line in the vicinity of the other closed end. CONSTITUTION: A feed line 2 and a discharge line 3 for a medium to be fed are guided into a small pipe 1 with both ends closed through one closed end. In the piercing guide, a plate 4 is pressed against an end part 6 of the pipe 1 using a cap nut 5, and a seal 7 is provided between a tube end part 6 and a seal 7. A discharge opening 8 of at least the discharge line 3 out of the conduits 2, 3 formed of plastic, glass or metal is provided in the vicinity of the pipe end part closed by a bottom part 9. A feed opening 10 of the feed line 2 is of the height so as not to be immersed in a liquid. The pipe sectional area between the feed opening 10 and the discharge opening 8 is selected to be smaller than the other ones so as to keep the residual amount of the liquid in a device to be small after a pump is stopped. Cleaning and maintenance can be facilitated in this constitution.</p> |
