| 摘要 |
PROBLEM TO BE SOLVED: To provide a spray nozzle in which only a damaged hollow fiber is changed when the hollow fiber constituting a spray part is damaged. SOLUTION: The spray nozzle M has a nozzle main body part 50 having a water discharge port 51a and a water spray part 10 provided at the water discharge port 51a and having a plurality of through holes 11. The through holes 11 having a small diameter part 12 positioned at the downstream side in the water discharge direction and a large diameter part 13 positioned at the upstream side in the water discharge direction. The hollow fiber 20 having the outside diameter larger than that of the small diameter part 12 is housed in the large diameter part 13. Because the hollow fiber 20 is housed in the large diameter part 13, a liquid is sprayed without slipping out of the hollow fiber 20 and when the damage such as the clogging of the hollow fiber 20 occurs, only the damaged hollow fiber 20 is replaced and a fresh hollow fiber 20 is inserted to facilitate the replacement of the damaged hollow fiber 20. COPYRIGHT: (C)2005,JPO&NCIPI
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