SEAWATER DESALINATION PLANT AND METHOD OF CONTROLLING SEAWATER DESALINATION PLANT

PROBLEM TO BE SOLVED: To provide a seawater desalination plant reducing power cost by following demand fluctuation or power fluctuation using a surplus reverse osmosis membrane module.SOLUTION: A seawater desalination plant comprises a plurality of pumps 7 connected in parallel, a plurality of rever...

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Hauptverfasser:	SHIRAISHI TOMOFUMI, HATAMIYA SHIGEO, MIKAWA KAZUHIRO, KIGUCHI KENJI, KAGEYAMA KOJI, TAKAHASHI FUMIO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING CHEMISTRY FIXED CONSTRUCTIONS HEATING INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, ORDISTRIBUTING WATER LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR METALLURGY OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCING MECHANICAL POWER SEPARATION SEWERAGE SPRING, WEIGHT, INERTIA OR LIKE MOTORS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WATER SUPPLY WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a seawater desalination plant reducing power cost by following demand fluctuation or power fluctuation using a surplus reverse osmosis membrane module.SOLUTION: A seawater desalination plant comprises a plurality of pumps 7 connected in parallel, a plurality of reverse osmosis membrane modules 1 connected in parallel, a water pipe 201 joining flows of seawater discharged from the plurality of pumps 7 to supply it to each of the reverse osmosis membrane modules 1, and a plurality of pressure recovery parts 3 recovering pressure from concentrated water treated by and discharged from the reverse osmosis membrane modules 1. The pressure recovery part 3 is allocated to each of the pumps 7 to recover pressure in accordance with the operation of each pump 7.SELECTED DRAWING: Figure 1 【課題】余剰の逆浸透膜モジュールを用いて、需要変動あるいは動力変動に追従し、動力費用を低減させる海水淡水化プラントを提供することを課題とする。【解決手段】並列に接続される複数のポンプ７と、並列に接続される複数の逆浸透膜モジュール１と、複数のポンプ７から吐出される海水を合流させて逆浸透膜モジュール１の各々に送る送水管２０１と、逆浸透膜モジュール１で処理されて吐出された濃縮水からの圧力を回収する複数の圧力回収部３を備え、圧力回収部３は、ポンプ７の各々に割り当てられ、個別のポンプ７の稼働に追従して圧力回収することによって、上記課題を解決する。【選択図】図１