| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pipe washing apparatus exhibiting unprecedented effects. <P>SOLUTION: The pipe washing apparatus washes the inside of a pipe 1 by feeding a washing liquid W to the pipe 1 to be washed. A vessel 3 is installed in a washing liquid-containing container 2 and submerged in the washing liquid W contained in the container 2. The vessel 3 has an air-introducing part 4 for introducing air into the vessel 3. The vessel 3 also has a washing liquid-introducing part 6 with a first valve 5 for introducing the washing liquid W into the vessel 3 and a washing liquid-discharging part 8 with a second valve 7 for connecting with the pipe 1 to be washed and sending the washing liquid W from the vessel 3 to the pipe 1. When the vessel 3 is pressurized through the air-introducing part 4, the first valve 5 closes, the second valve 7 opens and the washing liquid W in the vessel 3 is discharged through the washing liquid-discharging part 8. When the vessel 3 is not pressurized through the air-introducing part 4, the second valve 7 closes, the first valve 5 opens and the washing liquid W in the container 2 is introduced into the vessel 3 through the washing liquid-introducing part 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
