APPARATUS AND METHOD FOR TREATING WATER

• Main Authors: WATANABE SHINYA, SHIGA JUNICHI, TSUGA EIICHI, OCHI TETSUMI, KAWAKAMI YUSUKE, KUSANO TSUKASA
• Format: Patent
• Language: English; Japanese
• Published: 10.05.2018
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide an apparatus for treating water with high irradiation efficiency of ultraviolet light.SOLUTION: An apparatus for treating water 10 comprises a double pipe structure unit 12 including an outer pipe 20 extending from a first end portion 21 toward a second end portion 22 in an axial direction, an inner pipe 30 being arranged inside the outer pipe 20 and extending in the axial direction, and a restricting member being arranged between the outer pipe 20 and the inner pipe 30 and preventing radial displacement of the inner pipe 30 with respect to the outer pipe 20; and a light source unit 14 being arranged so as to liquid-tightly close an opening of the first end portion 21 of the outer pipe 20 and irradiating ultraviolet light in the axial direction toward water to be treated flowing through an inside of the inner pipe 30. The inner pipe 30 includes an opposite end portion 31 opposite to the light source unit 14 with a gap 76 interposed between itself and the light source unit 14, and an inflow end portion 32 which is positioned at an opposite side of the opposite end portion 31 and into which the water to be treated flows. The outer pipe 20 includes an outflow port 26 provided on an outer peripheral surface 23 of the outer pipe 20. The water to be treated flowing from the inside of the inner pipe 30, through the gap 76 and to an outside of the inner pipe 30 flows out from the outflow port 26.SELECTED DRAWING: Figure 1 【課題】紫外光の照射効率を高めた水処理装置を提供する。【解決手段】水処理装置１０は、第１端部２１から第２端部２２に向けて軸方向に延在する外管２０と、外管２０の内部に配置され、軸方向に延在する内管３０と、外管２０と内管３０の間に配置され、外管３０に対する内管２０の径方向の変位を防止する規制部材と、を有する二重管構造ユニット１２と、外管２０の第１端部２１の開口を液密に塞ぐように配置され、内管３０の内部を流れる被処理水に向けて軸方向に紫外光を照射する光源ユニット１４と、を備える。内管３０は、光源ユニット１４との間に設けられる隙間７６を挟んで光源ユニット１４と対向する対向端部３１と、対向端部３１の反対側に位置し、被処理水が流入する流入端部３２と、を有する。外管２０は、外管２０の外周面２３に設けられる流出口２６を有し、隙間７６を通って内管３０の内から外へ流れた被処理水が流出口２６から流出する。【選択図】図１