JPS60172393A - Multistage evaporation-reverse osmosis composite seawater desalination apparatus - Google Patents

Multistage evaporation-reverse osmosis composite seawater desalination apparatus

Info

Publication number
JPS60172393A
JPS60172393A JP59030044A JP3004484A JPS60172393A JP S60172393 A JPS60172393 A JP S60172393A JP 59030044 A JP59030044 A JP 59030044A JP 3004484 A JP3004484 A JP 3004484A JP S60172393 A JPS60172393 A JP S60172393A
Authority
JP
Japan
Prior art keywords
seawater
heat
reverse osmosis
brine
heat rejection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP59030044A
Other languages
Japanese (ja)
Inventor
Heihachi Harashina
原科　平八
Masami Uchinami
打浪　正己
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP59030044A priority Critical patent/JPS60172393A/en
Publication of JPS60172393A publication Critical patent/JPS60172393A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/06—Flash distillation
    • B01D3/065—Multiple-effect flash distillation (more than two traps)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To manufature the potable water within the WHO standard at low cost, and to improve the flexibility of the operation by incorporating a reverse osmosis system wherein the seawater is desalinated by reverse osmosis into the line of the waste seawater in a multistage evaporation system. CONSTITUTION:A part of the original water after passing through a heat refusing part 1 through a pipeline 5 is taken out as the waste seawater, and introduced into a reverse osmosis (RO) system 14. In the RO system 14, the pressure is exerted on the surface of the seawater, and the water is permeated through a membrane which is not permeable to Na ions and chlorine ions and purified. Accordingly, the seawater is desalinated by utilizing the waste seawater which is heated in the heat refusing part 1. The remaining seawater after passing through the heat refusing part 1 is recycled along with the brine 13. The brine sent by a brine pump 4 is successively passed through the inside of the heat recovery part 2, evaporated, and introduced into a heat exchanger 9.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は多段蒸発（マルチステージフラッシュ）システ
ムど逆浸透（Ｒｏ）システムとを組み合わせた海水淡水
化独言に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a seawater desalination system combining a multi-stage evaporation (multi-stage flash) system and a reverse osmosis (Ro) system.

［従来技術］ 従来の海水淡水化プラントとしては、第１図に示す多段
蒸発（ＭＳＦ）システムが採用されている。[Prior Art] A multi-stage evaporation (MSF) system shown in FIG. 1 has been adopted as a conventional seawater desalination plant.

この多段蒸発システムは、海水を海水ポンプ３で汲み士
げて熱拒否部１内を配管５にて通過さＩた後、一部は排
海水として取り出すと共に、残りは熱拒否部１から出る
ブライン（ｉｌｌ縮海水）１３とともにブラインポンプ
４により熱回収部２内を配管６にて通過させ、しかる後
、発電機１を駆動させるための発電機用タービン８から
の蒸気と熱交換器９にて熱交換させ、熱交換された蒸気
は復水どして復水ポンプ１０を経て回収するようにし、
一方、熱交換されて加熱されたブラインは熱回収部２へ
流入させ、該熱回収部２内を段階的に通過させながら蒸
発作用を行わせＣ最終的に熱拒否部１に導いて循環さけ
るようにし、熱拒否部１から蒸留水１２をポンプ１１に
て取り出すようにしである。In this multi-stage evaporation system, seawater is pumped by a seawater pump 3 and passed through a heat rejection section 1 through a pipe 5. A portion of the seawater is taken out as waste seawater, and the rest is brine that exits from the heat rejection section 1. (ill condensed sea water) 13 is passed through the heat recovery section 2 through the piping 6 by the brine pump 4, and then passed through the heat exchanger 9 with steam from the generator turbine 8 for driving the generator 1. heat exchange, and the heat exchanged steam is condensed and recovered via the condensate pump 10;
On the other hand, the brine that has been heated through heat exchange is caused to flow into the heat recovery section 2, where it undergoes evaporation while passing through the heat recovery section 2 in stages, and is finally led to the heat rejection section 1 for circulation. Distilled water 12 is taken out from the heat rejection part 1 by a pump 11.

しかし、上記多段蒸発システムでは、熱拒否部１′ｃ昇
湿され１：　ＪＪＩ海水を利用していないので、尚水ポ
ンプ３で汲みｂげられた海水の淡水化率が向上しないと
いう問題がある。However, in the above multi-stage evaporation system, since the heat rejection section 1'c humidifies and does not utilize JJI seawater, there is a problem that the desalination rate of the seawater pumped by the water pump 3 does not improve. .

「発明の目的］ 本発明は、熱拒否部でｙ７温された排海水を更に逆浸透
法で処理して浄化された水を得る。ようにした複合シス
テムで飲わ１水を得ることを目的とする。[Purpose of the invention] The purpose of the present invention is to obtain purified water by further treating the waste seawater heated in the heat rejection section by reverse osmosis. shall be.

［８Ｒ，明の４；４７戊コ 本発明は、上記目的をｊ構成りるために、第２図に示づ
如く、熱拒否部１内を配管５内を介して通過さけられた
ｔｆ０水の一部をＪＪｉ　ｔ／ｊ水どして取り出す途中
で逆浸透（ＲＯ）システム１４に導イ。[8R, 4 of Ming; A portion of the JJi t/j is introduced into a reverse osmosis (RO) system 14 while being drained and taken out.

ようにり−る。上記［＜Ｏシステム１４は、圧力を’ｒ
ｌＱ水の表面にかり月つ水をす）−リウムイオンも塩素
イオンも通さないようにしである膜を通しで浄化させる
ようにしてあり、熱拒否部１で昇温された排海水を利用
して海水を淡水化さＵるにうにする。熱拒否部１を通過
した海水の残りは、第１図の場合と同様に熱拒否部１か
ら出たブライン１３とともに再循環させるが、この再循
環を行わせるブラインポンプ４を、ボイラーからの蒸気
にＪ：り運転される発電機用タービン８からの背圧蒸気
と、該ブラインボンダ駆動用タービン１５から出る背圧
蒸気を熱交換器９に導くようにし、ブラインポンプ４で
送られるブラインは、第１図の場合と同様に熱回収部２
内を段階的に通過させて蒸発作用を行わせた後、熱交換
器９に導いて上記背圧蒸気と熱交換を行わけるようにす
る。Yoniriru. The [<O system 14 described above
Water is poured onto the surface of the water) - it is purified by passing through a membrane that does not allow lithium ions or chlorine ions to pass through, and the waste seawater heated in the heat rejection section 1 is used. to desalinate seawater. The remaining seawater that has passed through the heat rejection section 1 is recirculated together with the brine 13 discharged from the heat rejection section 1 as in the case of Fig. 1, but the brine pump 4 that performs this recirculation is The back pressure steam from the generator turbine 8 which is operated and the back pressure steam coming out of the brine bonder driving turbine 15 are led to the heat exchanger 9, and the brine sent by the brine pump 4 is As in the case of Fig. 1, the heat recovery section 2
After passing through the interior in stages to perform an evaporation action, the steam is introduced into a heat exchanger 9 where it can exchange heat with the back pressure steam.

上記構成としであるので、海水を淡水化するに際して海
水ポンプ３により海水を汲み上げると、汲み上げられた
海水を、熱拒否部１内の段階に応じて段階的に通過させ
、この間に蒸発作用を行わせて蒸溜水を生成させる。熱
拒否部１を通過し終えた海水は分岐させて、一部ば排海
水として取り出される途中からＲＯシステム１４に導き
、逆浸透法ににり淡水化して上記熱拒否部１から取り出
される蒸溜水に合流させる。上記分岐された残りの海水
は、上記熱拒否部１から出されるブラインとともに熱回
収部２の段階毎に配管６を介して通過させられて熱回収
部２の各段毎の蒸発作用を（ＩＮ進させる。熱交換器９
で熱交換を終えたブラインは、第゛１図について説明し
たと同様に熱回収部２内を段階的に流れ、この間に海水
は蒸発させられ、ブラインＩＪ段階的に熱拒否部１の方
へ送られることになる。With the above configuration, when seawater is pumped up by the seawater pump 3 when seawater is desalinated, the pumped seawater is passed through the heat rejection section 1 in stages according to the stages, and during this time an evaporation action is performed. Distilled water is also produced. The seawater that has passed through the heat rejection section 1 is branched, and part of the seawater is taken out as waste seawater, which is led to the RO system 14, where it is desalinated by reverse osmosis and distilled water is taken out from the heat rejection section 1. merge with. The remaining branched seawater is passed through the piping 6 at each stage of the heat recovery section 2 together with the brine discharged from the heat rejection section 1 to reduce the evaporation effect (IN) at each stage of the heat recovery section 2. Heat exchanger 9
After completing the heat exchange, the brine flows stepwise through the heat recovery section 2 in the same manner as explained in Fig. It will be sent.

上記熱回収部２で蒸発して蒸留された水（真水）は、該
熱回収部２内を段階的に熱拒否部１の方向へ送られ、最
終的に熱拒否部１からポンプ１１にて取り出されること
になる。The water (fresh water) evaporated and distilled in the heat recovery section 2 is sent stepwise in the direction of the heat rejection section 1 through the heat recovery section 2, and finally from the heat rejection section 1 to the pump 11. It will be taken out.

本発明の装置にＪ３いては、・熱演突型の多段蒸発シス
テムと電力消費型の逆浸透システムとを組み合わせて各
システムの特性を生かしたものであり、電気・水の需要
バランスに対応できるシステムであり、この複合型の運
転は従来型に比べ柔軟１１がある。Ｊなわち、電力需要
が増える場合には、逆浸透システムの一部の運転を中止
りることにＪ：り電力需要助人に対処ざＶることができ
る。The J3 device of the present invention is a system that combines a thermal bulge type multi-stage evaporation system and a power consumption type reverse osmosis system to take advantage of the characteristics of each system, and can respond to the balance of electricity and water demand. This combined type operation is 11 more flexible than the conventional type. That is, if the power demand increases, the power demand can be addressed by ceasing operation of a portion of the reverse osmosis system.

［発明の効果］ 以上述べた如く、本発明の装置によれば、多段蒸発シス
テムと逆浸透システムとを組み合わせた複合システムに
より運転゛りるＪ：うにしているので、熱拒否部で昇温
された排海水を更に淡水化さ１得て効率をあげることが
でさると共に、複合システムによりＷＨＯ基準内の−「
Ｏ８（Ｔ　ｏｔａｌ　［）　１ｓｓｏｌｖｅｄ　、　Ｓ
　ｏｌｉｄ）の飲料水を安価に得ることができ、又、従
来方式に比して運転に柔軟性がある、等の優れた効果を
奏し得る。[Effects of the Invention] As described above, the apparatus of the present invention is operated by a composite system that combines a multi-stage evaporation system and a reverse osmosis system. In addition to increasing the efficiency by desalinating the wastewater, the combined system also enables desalination within the WHO standards.
O8 (Total [) 1ssolved, S
It is possible to obtain drinking water (Olid) at a low cost, and it has excellent effects such as greater flexibility in operation compared to conventional systems.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の海水淡水化装置の概略図、第２図は本発
明の海水淡水化装置の概要図である。 １は熱拒否部、２は熱回収部、３は海水ポンプ、４はブ
ラインポンプ、８は発電機用タービン、９は熱交換器、
１２は蒸溜水、１３はブライン、１４は逆浸透システム
を示す。FIG. 1 is a schematic diagram of a conventional seawater desalination apparatus, and FIG. 2 is a schematic diagram of a seawater desalination apparatus of the present invention. 1 is a heat rejection section, 2 is a heat recovery section, 3 is a seawater pump, 4 is a brine pump, 8 is a generator turbine, 9 is a heat exchanger,
12 is distilled water, 13 is brine, and 14 is a reverse osmosis system.

Claims (1)

【特許請求の範囲】[Claims] １）　熱回収部ど熱拒否部を隣接させ、汲み上げノζ海
水を上記熱拒否部内を通ず配管を設け、該熱拒否部を通
過させた海水の一部は排海水とするど共に、残りを熱拒
否部から出るブラインとともに熱回収部内を通過させた
後昇温して該熱回収部内を段階的に通過させて熱拒否部
内へ導く間に蒸発を行わＵるＪ：うにした多段蒸発シス
テムの上記排海水の糸路に、逆浸透法により海水を淡水
化させる逆浸透システムを組み込んでなることを特徴ど
する多段蒸発−逆浸透複８海水淡水化装置。1) A heat rejection part such as a heat recovery part is placed adjacent to the heat rejection part, and piping is provided so that the pumped seawater does not pass through the heat rejection part, and a part of the seawater that has passed through the heat rejection part is treated as waste seawater, and the remaining seawater is A multi-stage evaporation system that performs evaporation while passing through the heat recovery section together with the brine coming out of the heat rejection section, raising the temperature, passing through the heat recovery section in stages, and guiding it into the heat rejection section. A multi-stage evaporation-reverse osmosis double 8 seawater desalination apparatus, characterized in that a reverse osmosis system for desalinating seawater by a reverse osmosis method is incorporated in the thread path of the discharged seawater.
JP59030044A 1984-02-20 1984-02-20 Multistage evaporation-reverse osmosis composite seawater desalination apparatus Pending JPS60172393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59030044A JPS60172393A (en) 1984-02-20 1984-02-20 Multistage evaporation-reverse osmosis composite seawater desalination apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59030044A JPS60172393A (en) 1984-02-20 1984-02-20 Multistage evaporation-reverse osmosis composite seawater desalination apparatus

Publications (1)

Publication Number Publication Date
JPS60172393A true JPS60172393A (en) 1985-09-05

Family

ID=12292821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59030044A Pending JPS60172393A (en) 1984-02-20 1984-02-20 Multistage evaporation-reverse osmosis composite seawater desalination apparatus

Country Status (1)

Country Link
JP (1) JPS60172393A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0474585U (en) * 1990-11-09 1992-06-30
WO2011148422A1 (en) * 2010-05-27 2011-12-01 日立Ｇｅニュークリア・エナジー株式会社 Power generation/seawater desalination complex plant
CN103663835A (en) * 2013-12-17 2014-03-26 中国电力工程顾问集团公司 Hybrid MSF (multistage flash)/RO (reverse osmosis) sea water desalination system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0474585U (en) * 1990-11-09 1992-06-30
WO2011148422A1 (en) * 2010-05-27 2011-12-01 日立Ｇｅニュークリア・エナジー株式会社 Power generation/seawater desalination complex plant
CN103663835A (en) * 2013-12-17 2014-03-26 中国电力工程顾问集团公司 Hybrid MSF (multistage flash)/RO (reverse osmosis) sea water desalination system

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