PURE WATER MANUFACTURING CONTROL SYSTEM AND PURE WATER MANUFACTURING MANAGEMENT METHOD

• Main Authors: MIKAWA HIROAKI, OKUZAKI YUICHI, CHIYOMARU MASARU
• Format: Patent
• Language: English; Japanese
• Published: 15.04.2021
• Subjects: CHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METALLURGY; PHYSICS; TESTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

To provide a system for automation of manufacturing of pure water with guaranteed water quality.SOLUTION: A pure water manufacturing control system comprises: a manufacturing apparatus of pure water; an analyzer executing inspection of water quality; a first valve provided in first piping connected on an outlet side of the manufacturing apparatus for controlling an amount of pure water to be supplied to a water storage tank; second piping branched from the first piping and connected to the analyzer; and a control apparatus, wherein the control apparatus, while supplying pure water to the water storage tank, control the analyzer to repeatedly execute water quality inspection of pure water flowing in via the second piping, and when water quality of pure water satisfies a predetermined standard as a result of the water quality inspection, opens the first valve, and when water quality of pure water does not satisfy the predetermined standard, closes the first valve.SELECTED DRAWING: Figure 1 【課題】水質が担保された純水の製造を自動化するシステムを提供する。【解決手段】純水製造管理システムは、純水の製造装置と、水質の検査を実行する分析装置と、製造装置の出口側に接続された第１配管に設けられ貯水タンクへ供給する純水の量を制御する第１弁と、第１配管から分岐して分析装置へ接続する第２配管と、制御装置と、を備え、制御装置は、貯水タンクへの純水の供給を行っている間、分析装置を制御して第２配管を通じて流入する純水の水質検査を繰り返し実行し、水質検査の結果、純水の水質が所定の基準を満たす場合、第１弁を開とし、純水の水質が所定の基準を満たさない場合、第１弁を閉とする。【選択図】図１