Title:
ENERGY-EFFICIENT METHOD AND DEVICE FOR MANUFACTURING DISTILLED WATER AND/OR CONCENTRATED WATER
Document Type and Number:
WIPO Patent Application WO/2010/026953
Kind Code:
A1
Abstract:
Provided are a method and a device for manufacturing distilled water and/or concentrated water from raw water. The manufacturing method comprises (i) a step for supplying raw water at a temperature higher than or equal to a temperature five degrees lower than the boiling point to an evaporator, (ii) a step for evaporating at least part of the raw water as water vapor in the evaporator, (iii) a step for discharging concentrated water, (iv) a step for pressurizing the water vapor in such a manner that the pressure of the water vapor becomes 1.01 to 2 times as high as the pressure in the evaporator so that the condensation temperature of the water vapor becomes higher than the boiling point of the raw water, and (v) a step for condensing the pressurized water vapor in a condenser to turn the water vapor into distilled water. The evaporator and the condenser are partitioned by a heat transfer plate, and the raw water is boiled in the evaporator by transferring condensation heat generated by the condensation of the water vapor in the condenser from the condenser to the evaporator via the heat transfer plate.
Inventors:
TAKEDA SEIICHI (JP)
Application Number:
PCT/JP2009/065229
Publication Date:
March 11, 2010
Filing Date:
September 01, 2009
Export Citation:
Assignee:
TAKEDA SEIICHI (JP)
International Classes:
C02F1/04; B01D1/00; B01D5/00
Foreign References:
| JPH0263592A | 1990-03-02 | |||
| JP2005205337A | 2005-08-04 | |||
| JPS6125601A | 1986-02-04 |
Attorney, Agent or Firm:
ASAMURA Kiyoshi et al. (JP)
Hiroshi Asamura (JP)
Hiroshi Asamura (JP)
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