INSPECTION METHOD OF SPIRAL TYPE MEMBRANE ELEMENT

• Main Authors: TADOKORO KOJI, HAYAMI SHIGEKI, NOMI SHUNSUKE
• Format: Patent
• Language: English; Japanese
• Published: 21.03.2024
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; SEPARATION; TESTING; TRANSPORTING

To provide an inspection method of a spiral type membrane element which allows a user to observe a state of a portion that is prone to be a cause of leakage after use without disassembling the spiral type membrane element.SOLUTION: In an inspection method of a spiral type membrane element including a center pipe 5 having a hole, a wound body R wound around the center pipe 5 and including a separation membrane, and a sealing part 13 which prevents mixing of a supply side passage with a permeation side passage, an inspection probe 20 is inserted into the center pipe 5 and an energy wave radiation position is scanned to obtain an image in which the sealing part 13 located near an outer periphery of the center pipe 5 is visualized.SELECTED DRAWING: Figure 5 【課題】スパイラル型膜エレメントを解体せずに、使用後にリークの原因となり易い部分の状態を観察できるスパイラル型膜エレメントの検査方法を提供する。【解決手段】有孔の中心管５と、その中心管５に巻回され分離膜を含む巻回体Ｒと、供給側流路と透過側流路との混合を防止する封止部１３と、を備えるスパイラル型膜エレメントの検査方法であって、中心管５の内部に検査プローブ２０を挿入して、エネルギー波の照射位置を走査することにより、中心管５の外周近傍に位置する封止部１３を可視化した画像を得る。【選択図】図５