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Patent Searching and Data


Title:
WATER TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/102443
Kind Code:
A1
Abstract:
Disclosed is a water treatment device which improves and stabilises the treatment performance of a reverse osmosis membrane housed in a container. In the water treatment device (10), sea water that flows in from the discharge outlet (46) of a pipe (42) is made to flow radially in the radial direction of the container (24), thereby temporarily eliminating the inflow direction component of the sea water in relation to the inlet end surface (28A) of the reverse osmosis membrane (28) Subsequently, the sea water flows in the axial direction of the container (24). During this interval, the axial-direction flow speed component of the sea water flowing in the axial direction is substantially equalized over the entire inlet end surface (28A) of the reverse osmosis membrane (28). Thus, the entire surface of the reverse osmosis membrane (28) is efficiently exposed to the sea water, thereby improving the treatment performance of the reverse osmosis membrane (28).

Inventors:
MORITA MINORU (JP)
KITAMURA KOTARO (JP)
Application Number:
PCT/JP2011/053450
Publication Date:
August 25, 2011
Filing Date:
February 18, 2011
Export Citation:
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Assignee:
HITACHI PLANT TECHNOLOGIES LTD (JP)
MORITA MINORU (JP)
KITAMURA KOTARO (JP)
International Classes:
C02F1/44; B01D61/10
Foreign References:
JPS5386683A1978-07-31
JPH08224450A1996-09-03
JPS63104617A1988-05-10
JP2010162496A2010-07-29
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
Kenzo Matsuura (JP)
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Claims: