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Title:
MEMBRANE FILTRATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/065422
Kind Code:
A1
Abstract:
Provided is a membrane filtration apparatus capable of detecting malfunctions of a valve provided in a gas line. This membrane filtration apparatus, which comprises a vessel 1, a hollow fiber membrane 2 disposed inside the vessel 1, pipes L2, L8, and L9 for supplying air from a compressed air source into the vessel 1, and valves V2, V8, and V9 provided on the respective pipes, is provided with a pressure sensor 23 or flow rate sensor 24 on the compressed air source-side of the valves of the pipes, and malfunctions of the valves are assessed with an assessment device 30 on the basis of patterns of changes over time in detected values of the pressure sensor 23 or flow rate sensor 24 when the valves are opened or closed.

Inventors:
INATOMI YUYA (JP)
Application Number:
PCT/JP2020/034505
Publication Date:
April 08, 2021
Filing Date:
September 11, 2020
Export Citation:
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Assignee:
KURITA WATER IND LTD (JP)
International Classes:
B01D63/02; B01D65/02; B01D65/10; C02F1/44
Foreign References:
JP2006088133A2006-04-06
JP2000342936A2000-12-12
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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