| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide the structure of an apparatus for conveying a resin or an agent by using no liquid force-feed pump by pressure reducing or pressurizing between a stock tank and a tank for working to deliver a main liquid, in an apparatus for impregnating and injecting the resin or the medicine into wood, and a piping structure for cleaning the force-feed pump used at the time of pressurizing and the peripheral piping, and an apparatus including them. <P>SOLUTION: A bypass piping is conducted at the main liquid sending piping, and the liquid sending of the main piping is moved without power by using a pressure difference from the atmospheric pressure applied to a stock tank 1 within a working tank by using a vacuum tank and a compressor. When the working tank is filled up with the liquid and is pressurized, the working tank is pressurized by a force-feed pump 3 installed on a bypass piping. The cleaning work is conducted by closing the cocks B1, B2 of the main piping , stopping the inflow of the resin or the medicine, injecting the cleaning liquid from the cleaning piping, operating the force feed pump 3 at the bypass piping as a center, and circulating the cleaning liquid. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
