| 摘要 |
PROBLEM TO BE SOLVED: To provide a reverse osmosis membrane desalination apparatus that can easily specify a reverse osmosis membrane element in which performance is deteriorated, and can easily measure the flow rate of permeated water.SOLUTION: In an inspection device 31 of a reverse osmosis membrane desalination apparatus 30 that includes a water collecting pipe 11, a reverse osmosis membrane 15 disposed at the periphery of the water collecting pipe, and two or more reverse osmosis membrane elements 12 distributed along the collecting pipe, the inspection device of the reverse osmosis membrane desalination apparatus includes: an electrical conductivity sensor 4 including a sensor body 4a that moves with the flow of permeated water W2 circulating in the inside of the water collecting pipe and detects the electrical conductivity of the permeated water, and an electrical conductivity transmission part 4b that radio transmits the electrical conductivity; a position detection means including a position detection part 19 that detects the position of the electrical conductivity sensor 4, and a position transmission part 4b that radio transmits position information; and an information processing part 7 including a receiver 7a that radio receives the electrical conductivity and the position of the electrical conductivity sensor, and performing the evaluation of the reverse osmosis membrane element 12 based on the information received by the receiver. |
