Title:
OPERATION MANAGEMENT DEVICE FOR A VAPORIZATION DEVICE, FRESH WATER GENERATOR PROVIDED WITH THE OPERATION MANAGEMENT DEVICE, AND OPERATION MANAGEMENT METHOD AND FRESH WATER-GENERATING METHOD FOR VAPORIZATION DEVICES
Document Type and Number:
WIPO Patent Application WO/2010/090273
Kind Code:
A1
Abstract:
The disclosed operation management device (6) controls the operating conditions of a vaporization device (4) that evaporates and concentrates by heating the water being processed, which comprises calcium sulfate. The device is provided with an ionic strength-calculating means (62) that calculates saturation solubility product curve data that is predetermined from the relationship between ionic strength at prescribed temperatures and the calcium sulfate saturated solubility product, and the ionic strength in the water to be processed, a solubility product-calculating means (63) that calculates the calcium sulfate solubility product in said water to be processed, an operating conditions-calculating means (64) that calculates operating conditions for the vaporization device (4) such that the calcium sulfate solubility product with respect to said ionic strength of said water being processed does not exceed the saturation solubility product by comparison of the ionic strengths and calcium sulfate solubility products calculated by the ionic strength-calculating means (62) and the solubility product-calculating means (63) and said saturation solubility product curve data, and an operating conditions-modifying means (65) that changes the operating conditions of the vaporization device (4) to the operating conditions calculated by the operating conditions-calculating means (64). An operation management device for vaporization devices that can prevent calcium sulfate scale deposition while efficiently producing fresh water can thereby be provided
Inventors:
TANIGUCHI YOSHIO (JP)
AKIYA TAKAJI (JP)
ARAKI SHIGERU (JP)
HAMAD OSMAN AHMED (SA)
AL-RASHEED RADWAN A (SA)
KANNARI TORU (JP)
MAEKAWA KAZUTO (JP)
AKIYA TAKAJI (JP)
ARAKI SHIGERU (JP)
HAMAD OSMAN AHMED (SA)
AL-RASHEED RADWAN A (SA)
KANNARI TORU (JP)
MAEKAWA KAZUTO (JP)
Application Number:
PCT/JP2010/051640
Publication Date:
August 12, 2010
Filing Date:
February 04, 2010
Export Citation:
Assignee:
WATER RE USE PROMOTION CT (JP)
SALINE WATER CONVERSION CORP (SA)
SASAKURA ENG CO LTD (JP)
TANIGUCHI YOSHIO (JP)
AKIYA TAKAJI (JP)
ARAKI SHIGERU (JP)
HAMAD OSMAN AHMED (SA)
AL-RASHEED RADWAN A (SA)
KANNARI TORU (JP)
MAEKAWA KAZUTO (JP)
SALINE WATER CONVERSION CORP (SA)
SASAKURA ENG CO LTD (JP)
TANIGUCHI YOSHIO (JP)
AKIYA TAKAJI (JP)
ARAKI SHIGERU (JP)
HAMAD OSMAN AHMED (SA)
AL-RASHEED RADWAN A (SA)
KANNARI TORU (JP)
MAEKAWA KAZUTO (JP)
International Classes:
C02F1/04; C02F5/00
Foreign References:
| JP2008272668A | 2008-11-13 | |||
| JPH01104399A | 1989-04-21 | |||
| JPS5916584A | 1984-01-27 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
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