Title:
DISTILLATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/059535
Kind Code:
A1
Abstract:
Provided is a distillation apparatus that can use a metal heat exchanger having high thermal conductivity as a heat exchanger even when raw material water contains volatile acid gas. Raw material water is sent from a feed water tank 1 to a heat exchanger 4 via a pump 2 and a pipe 3, heated in the heat exchanger 4, then sent to a membrane module 10, and treated with membrane distillation. Steam generated on the secondary side of the membrane module 10 is sucked by an aspirator 50. An absorbing liquid in an absorbing liquid tank 90 is supplied through a pump 51 and a cooling heat exchanger 70 to the aspirator 50. The heat exchanger 70 is made of metal such as titanium.
Inventors:
MASUDA HARUKI (JP)
TAKAHASHI JUNICHI (JP)
TAKAHASHI JUNICHI (JP)
Application Number:
PCT/JP2021/032605
Publication Date:
March 24, 2022
Filing Date:
September 06, 2021
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
B01D3/10; B01D61/36
Foreign References:
| JP2002327288A | 2002-11-15 | |||
| JPH05115857A | 1993-05-14 | |||
| JPH0352627A | 1991-03-06 | |||
| EP0634198A1 | 1995-01-18 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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