JP2006263542A - Water making apparatus and water making method - Google Patents
Water making apparatus and water making method Download PDFInfo
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- JP2006263542A JP2006263542A JP2005083570A JP2005083570A JP2006263542A JP 2006263542 A JP2006263542 A JP 2006263542A JP 2005083570 A JP2005083570 A JP 2005083570A JP 2005083570 A JP2005083570 A JP 2005083570A JP 2006263542 A JP2006263542 A JP 2006263542A
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- 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
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Abstract
Description
本発明は、車両やヘリコプター等の移動体に搭載可能な造水装置とこれを用いて処理水を得る造水方法に関するものである。 The present invention relates to a fresh water generator that can be mounted on a moving body such as a vehicle or a helicopter, and a fresh water generation method for obtaining treated water using the fresh water generator.
例えば、地震や台風による被害を受けた被災地に車両やヘリコプター等の移動体で移動し、現地の海水や河川水等を原水としてこれを浄化処理して飲料水等の処理水を得る移動式の造水装置が提案されている(例えば、特許文献1,2参照)。
For example, a mobile device that moves to a disaster-stricken area affected by an earthquake or typhoon with a moving body such as a vehicle or helicopter, and uses local seawater or river water as raw water to purify it to obtain treated water such as drinking water. A fresh water generator has been proposed (see, for example,
この造水装置は、基本的には、原水から懸濁物質を除去して濾過水を得るための濾過手段と、該濾過手段からの濾過水を脱塩するために脱塩手段を含んで構成されている。 This fresh water generator basically includes a filtering means for removing suspended substances from raw water to obtain filtered water, and a desalting means for desalting the filtered water from the filtering means. Has been.
ところで、従来の造水装置においては、脱塩手段としては、海水等の塩分濃度が高い原水を脱塩処理する場合には直列配置された第1及び第2の逆浸透膜処理手段を備えているものが使用され、河川水等の塩分濃度が低いかん水を脱塩処理する場合には単一の逆浸透膜処理手段を備えているものが使用されていた。 By the way, in the conventional desalination apparatus, when desalinating raw water with a high salt concentration such as seawater, the first and second reverse osmosis membrane treatment means arranged in series are provided as the desalination means. In the case of desalinating brackish water having a low salinity concentration such as river water, one having a single reverse osmosis membrane treatment means has been used.
即ち、造水装置としては、濾過水を2段処理によって脱塩する海水専用のものと、濾過水を1段処理によって脱塩するかん水専用のものが存在していた。このため、従来の造水装置は、海水又はかん水の何れか一方にしか対応できず、甚だ汎用性に乏しいという問題があった。 That is, as a fresh water generator, there are a dedicated one for seawater for desalting filtered water by two-stage treatment and a special one for brine for desalting filtered water by one-stage treatment. For this reason, the conventional fresh water generator can cope only with either seawater or brackish water, and has a problem that it is not very versatile.
本発明は上記問題に鑑みてなされたもので、その目的とする処は、海水及びかん水の何れの原水に対しても対応可能な汎用性の高い造水装置及び造水方法を提供することにある。 The present invention has been made in view of the above problems, and the object of the present invention is to provide a highly versatile fresh water generation apparatus and fresh water generation method that can cope with any raw water of seawater and brine. is there.
上記目的を達成するため、請求項1記載の発明は、移動体に搭載可能であって、原水から懸濁物質を除去して濾過水を得るための濾過手段と、該濾過手段からの濾過水を脱塩するために直列配置された第1及び第2の逆浸透膜処理手段を備えて成る造水装置において、前記第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段に送水するための送水ラインに切換手段を設けるとともに、前記第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段をバイパスして処理水として系外へ排出するバイパスラインを設けたことを特徴とする。
In order to achieve the above object, the invention according to
請求項2記載の発明は、請求項1記載の発明において、前記バイパスラインを前記送水ラインから分岐せしめ、その分岐部に前記切換手段として三方弁を設けたことを特徴とする。 According to a second aspect of the present invention, in the first aspect of the present invention, the bypass line is branched from the water supply line, and a three-way valve is provided as the switching means at the branch portion.
請求項3記載の発明は、移動体に搭載可能であって、原水から懸濁物質を除去して濾過水を得るための濾過手段と、該濾過手段からの濾過水を脱塩するために直列配置された第1及び第2の逆浸透膜処理手段を備えて成る造水装置を用いて処理水を得る造水方法において、前記第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段に送水するための送水管に設けられた切換手段によって、第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段をバイパスして処理水として系外へ排出することを特徴とする。
The invention described in
請求項4記載の発明は、請求項3記載の発明において、前記切換手段は、原水の塩分濃度が所定値未満である場合に、前記第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段をバイパスして処理水として系外へ排出することを特徴とする。 According to a fourth aspect of the present invention, in the invention according to the third aspect, the switching means supplies the demineralized water from the first reverse osmosis membrane treatment means when the salinity concentration of the raw water is less than a predetermined value. The reverse osmosis membrane treatment means 2 is bypassed and discharged as treated water to the outside of the system.
請求項5記載の発明は、請求項3又は4記載の発明において、前記切換手段として三方弁を用いることを特徴とする。
The invention according to claim 5 is the invention according to
本発明によれば、塩分濃度の高い海水等に対しては第1及び第2の逆浸透膜処理手段によって濾過水を2段処理して脱塩し、塩分濃度が低いかん水に対しては濾過水を第1の逆浸透膜処理手段のみによって1段処理して脱塩することができる。つまり、脱塩処理においては、原水の塩分濃度に応じて2段又は1段処理するようにしたため、海水及びかん水の何れの原水に対しても対応が可能となり、その汎用性が高められる。そして、第1の逆浸透膜手段によって1段目の脱塩処理がなされた脱塩水の流れ経路の切り換えは三方弁等の切換手段によって容易になされる。 According to the present invention, seawater or the like having a high salt concentration is desalted by subjecting the filtrate to two stages by the first and second reverse osmosis membrane treatment means, and filtration is performed for brine having a low salt concentration. The water can be desalted by treating it in one stage only by the first reverse osmosis membrane treatment means. That is, in the desalting treatment, two or one stage treatment is performed according to the salinity concentration of the raw water, so that it is possible to deal with any raw water of seawater and brine and the versatility thereof is enhanced. The flow path of the desalted water that has been subjected to the first-stage desalting treatment by the first reverse osmosis membrane means is easily switched by switching means such as a three-way valve.
又、かん水に対しては濾過水を第1の逆浸透膜処理手段のみによって1段処理するようにしたため、かん水に対する処理時間が短縮されて処理容量の増大が図られる。 Further, since the filtered water is treated in one stage only by the first reverse osmosis membrane treatment means, the treatment time for the brine is shortened and the treatment capacity is increased.
以下に本発明の実施の形態を添付図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
図1は本発明に係る造水装置の基本構成を示すフロー図、図2は同造水装置を搭載した車両の側面図、図3は同車両の平面図、図4は同車両の後面図である。 FIG. 1 is a flowchart showing the basic configuration of a fresh water generator according to the present invention, FIG. 2 is a side view of a vehicle equipped with the fresh water generator, FIG. 3 is a plan view of the vehicle, and FIG. 4 is a rear view of the vehicle. It is.
図1において、T1,T2,T3は被災地等の現地に設置される原水タンク、RO給水タンク(濾過水タンク)、RO透過水タンク(処理水タンク)であり、原水タンクT1にはスクリーンSを介して取水ラインaが接続されている。尚、取水ラインaは、海や河川等から汲み上げられた海水や河川水等の原水を原水タンクT1に供給するためのものである。 In FIG. 1, T1, T2, and T3 are raw water tanks, RO water supply tanks (filtrated water tanks), and RO permeate water tanks (treated water tanks) installed on the site such as the stricken area. The water intake line a is connected via The intake line a is for supplying raw water such as sea water or river water drawn from the sea or river to the raw water tank T1.
又、上記原水タンクT1内にはKM給水ポンプP1が設置されており、該KM給水ポンプP1の吐出側から導出する原水ラインbには、濾過手段としての3基のKM濾過器KM−1,KM−2,KM−3が並列に接続されている。ここで、各KM濾過器KM−1,KM−2,KM−3は、2つの限外濾過膜又は精密濾過膜(以下、「KM膜モジュール」と称する)を直列に接続して構成されており、これらのKM濾過器KM−1,KM−2,KM−3は濾過水ラインcに合流して接続されている。そして、濾過水ラインcは、前記RO給水タンクT2に接続されている。尚、図1において、hは逆洗排水ライン、R1は逆洗排水容器である。 Further, a KM water pump P1 is installed in the raw water tank T1, and three KM filters KM-1, KM-1 as filtering means are provided in the raw water line b led out from the discharge side of the KM water pump P1. KM-2 and KM-3 are connected in parallel. Here, each KM filter KM-1, KM-2, KM-3 is configured by connecting two ultrafiltration membranes or microfiltration membranes (hereinafter referred to as “KM membrane module”) in series. These KM filters KM-1, KM-2, and KM-3 are joined and connected to the filtered water line c. The filtered water line c is connected to the RO water supply tank T2. In FIG. 1, h is a backwash drainage line, and R1 is a backwash drainage container.
ここで、前記KM膜モジュールは、特許第3402174号に記載されているスパイラル膜モジュールである。 Here, the KM membrane module is a spiral membrane module described in Japanese Patent No. 3402174.
即ち、KM膜モジュールは、分離膜をシャフトに巻回して巻回体とし、該巻回体の一端面から原水が供給され、透過水が巻回体の他端面から取り出されるスパイラル型膜モジュールであって、該スパイラル型モジュールは、第1、第2、第3及び第4の辺部を有した略方形の袋状膜であり、第1、第2及び第3の辺部は封じられ、第4の辺部は一部が開放部となり、残部が閉鎖部となっている。そして、第4の辺部と直交する第1の辺部をシャフトに当てて該袋状膜を巻回して巻回体とし、前記第4の辺部を該巻回体の後端面に臨ませ、該第4の辺部に対向する第2の辺部を該巻回体の前端面に臨ませ、該袋状膜同士の間の原水流路は、第3の辺部の全体が閉じられるとともに、第4の辺部にあっては前記袋状膜の開放部と重なる箇所が閉鎖部となっており、且つ、前記袋状膜の閉鎖部と重なる箇所が開放部となっている。尚、分離膜の材質としてはポリテトラフルオロエチレン(PTFE)が用いられる。 That is, the KM membrane module is a spiral membrane module in which a separation membrane is wound around a shaft to form a wound body, raw water is supplied from one end surface of the wound body, and permeated water is taken out from the other end surface of the wound body. The spiral-type module is a substantially rectangular bag-shaped membrane having first, second, third, and fourth sides, and the first, second, and third sides are sealed, A part of the fourth side portion is an open portion, and the remaining portion is a closed portion. Then, the first side part orthogonal to the fourth side part is applied to the shaft to wind the bag-like film to form a wound body, and the fourth side part faces the rear end surface of the wound body. The second side portion facing the fourth side portion faces the front end surface of the wound body, and the whole of the third side portion of the raw water flow path between the bag-like membranes is closed. In addition, in the fourth side portion, a portion that overlaps the opening portion of the bag-like film is a closed portion, and a portion that overlaps the closing portion of the bag-like film is an open portion. Note that polytetrafluoroethylene (PTFE) is used as the material of the separation membrane.
本発明においては、このようなKM膜モジュールを用いることによって、高透過流束、高回収率にて濁質を除去したRO給水を得ることができるため、非常にコンパクトな装置とすることが可能となる。 In the present invention, by using such a KM membrane module, it is possible to obtain RO water supply from which turbidity has been removed with high permeation flux and high recovery rate, and therefore, a very compact device can be obtained. It becomes.
ところで、図1に示すように、前記RO給水タンクT2内にはRO給水ポンプP2が設置されており、このRO給水ポンプPの吐出側から導出する濾過水ラインdには、有機物除去のための活性炭が収容された2基のACカートリッジAC1,AC2が並列に接続されるとともに、高圧ポンプP3が直列に接続されている。そして、高圧ポンプP3の吐出側から延びる濾過水ラインeは、脱塩手段の第1の逆浸透膜手段を構成する第1逆浸透膜装置RO−1に接続され、該第1逆浸透膜装置RO−1には第2の逆浸透膜手段を構成する第2逆浸透膜装置R−2が脱塩水ラインfによって直列に接続されている。尚、第1及び第2逆浸透膜装置RO−1,RO−2は、濾過水を逆浸透させて脱塩処理するための逆浸透膜(以下、「RO膜」と称する)を各々備えている。 By the way, as shown in FIG. 1, an RO water supply pump P2 is installed in the RO water supply tank T2, and the filtered water line d led out from the discharge side of the RO water supply pump P is used for removing organic substances. Two AC cartridges AC1 and AC2 containing activated carbon are connected in parallel, and a high-pressure pump P3 is connected in series. And the filtrate water line e extended from the discharge side of the high pressure pump P3 is connected to 1st reverse osmosis membrane apparatus RO-1 which comprises the 1st reverse osmosis membrane means of a desalination means, and this 1st reverse osmosis membrane apparatus A second reverse osmosis membrane device R-2 constituting a second reverse osmosis membrane means is connected to RO-1 in series by a desalted water line f. The first and second reverse osmosis membrane devices RO-1 and RO-2 are each provided with a reverse osmosis membrane (hereinafter referred to as “RO membrane”) for reverse osmosis of filtered water for desalination treatment. Yes.
又、上記第2逆浸透膜装置RO−2からは処理水ラインgが導出しており、この処理水ラインgは、前記RO透過水タンクT3に接続されている。ここで、RO透過水タンクR3内には、殺菌剤としての塩素添加錠剤1と赤水防止剤2が収容されている。尚、図1において、iはRO濃縮水ライン、R2はRO濃縮水容器である。
A treated water line g is led out from the second reverse osmosis membrane device RO-2, and this treated water line g is connected to the RO permeated water tank T3. Here, in the RO permeate tank R3, a chlorine-added
而して、本実施の形態に係る造水装置においては、脱塩手段を構成する前記第1逆浸透膜装置RO−1と第2逆浸透膜装置RO−2とを接続する前記脱塩水ラインfの途中からはバイパスラインjが分岐しており、このバイパスラインjは、第2逆浸透膜装置RO−2をバイパスして前記処理水ラインgに接続されている。そして、バイパスラインjの脱塩水ラインfからの分岐部には、第1逆浸透膜装置RO−1を通過して1段目の脱塩処理がなされた脱塩水の流れ経路を切り換えるための切換手段である三方弁Vが設けられている。 Thus, in the fresh water generator according to the present embodiment, the desalted water line connecting the first reverse osmosis membrane device RO-1 and the second reverse osmosis membrane device RO-2 constituting the desalination means. A bypass line j branches off in the middle of f, and the bypass line j bypasses the second reverse osmosis membrane device RO-2 and is connected to the treated water line g. Then, at the branch portion of the bypass line j from the desalted water line f, switching for switching the flow path of the desalted water that has passed through the first reverse osmosis membrane device RO-1 and has been subjected to the first-stage desalting treatment. A three-way valve V as a means is provided.
他方、前記RO給水タンクT2の側部からは給水ラインkが導出しており、この給水ラインkは、保管剤溶解器R3に接続され、該給水ラインkの途中には給水ポンプP4が接続されている。そして、前記保管剤溶解器R3から延びる保管液ラインmは、前記濾過水ラインdの前記ACカートリッジAC−1,AC−2の上流側に接続されている。 On the other hand, a water supply line k is led out from the side of the RO water supply tank T2, and this water supply line k is connected to the storage agent dissolver R3, and a water supply pump P4 is connected to the water supply line k. ing. A storage liquid line m extending from the storage agent dissolver R3 is connected to the upstream side of the AC cartridges AC-1 and AC-2 of the filtered water line d.
ところで、以上説明したKM濾過器KM−1,KM−2,KM−3、ACカートリッジAC1,AC2、高圧ポンプP3、第1及び第2逆浸透膜装置RO−1,RO−2、給水ポンプP4及び保管剤溶解器R3は、図2〜図4に示すように、小型トラック等の車両100の荷台に搭載されている(給水ポンプP4と保管剤溶解器R3は不図示)。
By the way, the KM filters KM-1, KM-2, KM-3, the AC cartridges AC1, AC2, the high pressure pump P3, the first and second reverse osmosis membrane devices RO-1, RO-2, the feed water pump P4 described above. 2 and 4, the storage agent dissolver R3 is mounted on the loading platform of the
即ち、図2〜図4に示すように、車両100の荷台の前半部分には、3基のKM濾過器KM−1,KM−2,KM−3が横置き状態で上下に2段に亘って配置されており、これらの後方には高圧ポンプP3が配置され、その横には2基のACカートリッジAC1,AC2が縦置き状態で配置されている。そして、高圧ポンプP3の上部には、図2に示すように、操作パネルPNLが配置されている。
That is, as shown in FIGS. 2 to 4, three KM filters KM- 1, KM- 2, and KM- 3 are placed horizontally in two stages in the first half of the loading platform of the
又、高圧ポンプP3の後方の荷台の最後部には第1及び第2逆浸透膜装置RO−1,RO−2が横置き状態で上下2段に亘って配置されている。 In addition, the first and second reverse osmosis membrane devices RO-1 and RO-2 are arranged in two stages in the horizontal direction at the rearmost part of the loading platform behind the high-pressure pump P3.
尚、図示しないが、本発明に係る造水装置の運転には、海や河川等から原水を汲み上げるための取水ポンプ、必要な電力を供給する発電機、KM膜を逆洗するためのコンプレッサ等を現地に設置する必要がある。 Although not shown, the operation of the fresh water generator according to the present invention includes a water intake pump for pumping raw water from the sea, rivers, etc., a generator for supplying necessary power, a compressor for backwashing the KM membrane, etc. Need to be installed locally.
次に、以上の構成を有する造水装置の作用を図1に基づいて説明する。 Next, the operation of the fresh water generator having the above configuration will be described with reference to FIG.
図2〜図4に示す車両100を被災地等の現地に走らせ、これに搭載された造水装置を現地に搬送する。そして、現地の海或は河川等から海水或は河川水等の原水を不図示の取水ポンプで汲み上げて取水ラインaからスクリーンSを経て原水タンクT1に供給する。
The
ところで、かん水を処理する場合には、逆浸透膜処理装置RO−1の濃縮倍率を高くするために膜面へのスケール析出の問題が生ずる。このため、RO給水タンクT2の水面上に固形スケール防止剤3を懸吊し、KM濾過器KM−1,KM−2,KM−3から濾過水がRO給水タンクT2に送水される際に、濾過水を固形スケール防止剤3に接触させることで該固形スケール防止剤3を少量ずつ溶解させ、硬質スケールが膜面へ析出するのを防止している。尚、海水を処理する場合には、このような処理は不要である。
By the way, when processing brackish water, the problem of the scale precipitation to a membrane surface arises in order to make the concentration rate of reverse osmosis membrane processing apparatus RO-1 high. For this reason, when the
原水タンクT1においては、該原水タンクT1に供給された原水がKM給水ポンプP1によって原水ラインbを経て3基のKM濾過器KM−1,KM−2,KM−3へと送られ、各KM濾過器KM−1,KM−2,KM−3のKM膜によって原水が濾過されて懸濁物質が除去される。そして、懸濁物質が除去された濾過水は、合流して濾過水ラインcを通ってRO給水タンクT2へと送られてそこに貯留される。 In the raw water tank T1, the raw water supplied to the raw water tank T1 is sent to the three KM filters KM-1, KM-2, and KM-3 through the raw water line b by the KM feed water pump P1, and each KM The raw water is filtered by the KM membranes of the filters KM-1, KM-2, and KM-3 to remove suspended substances. Then, the filtered water from which suspended substances have been removed merges, passes through the filtered water line c, is sent to the RO water supply tank T2, and is stored therein.
上記RO給水タンクT2においては、RO給水ポンプP2によって濾過水が濾過水ラインdからACカートリッジAC1,AC2を通過して高圧ポンプP3に送られるが、その途中でACカートリッジAC1,AC2を通過する際に該カートリッジAC1,AC2に収容された活性炭によって有機物が濾過水から除去される。このようにして有機物が除去された濾過水は、高圧ポンプP3によって昇圧されて第1逆浸透膜装置RO−1に送られ、該第1逆浸透膜装置RO−1のRO膜を透過することによって脱塩処理され、脱塩水として脱塩ラインfへと排出される。 In the RO water supply tank T2, filtered water is sent from the filtered water line d through the AC cartridges AC1 and AC2 to the high-pressure pump P3 by the RO water supply pump P2, but when passing through the AC cartridges AC1 and AC2 in the middle of the RO water supply tank T2. Organic substances are removed from the filtered water by the activated carbon contained in the cartridges AC1 and AC2. The filtered water from which the organic matter has been removed in this manner is pressurized by the high-pressure pump P3, sent to the first reverse osmosis membrane device RO-1, and permeates the RO membrane of the first reverse osmosis membrane device RO-1. Is desalted and discharged as desalted water to the desalting line f.
ここで、原水が塩分濃度の高い海水である場合には、三方弁Vによってバイパスラインjを閉じて脱塩水のバイパスラインjへの流れを遮断し、第1逆浸透膜装置RO−1によって1段目の脱塩処理がなされた脱塩水を脱塩水ラインfから第2逆浸透膜装置RO−2へと流し、該第2逆浸透膜装置RO−2において脱塩水に対して2段目の脱塩処理を行う。そして、2段の脱塩処理によって塩分が十分除去された処理水は、処理水ラインgからRO透過水タンクT3へと送られて貯留され、飲料水や生活水としての用途に供される。 Here, when the raw water is seawater with a high salinity, the bypass line j is closed by the three-way valve V to block the flow of the demineralized water to the bypass line j, and the first reverse osmosis membrane device RO-1 1 The desalted water that has been subjected to the desalting treatment of the second stage is caused to flow from the desalted water line f to the second reverse osmosis membrane apparatus RO-2, and the second stage of the desalted water with respect to the desalted water in the second reverse osmosis membrane apparatus RO-2. Desalting is performed. Then, the treated water from which the salinity has been sufficiently removed by the two-stage desalting treatment is sent from the treated water line g to the RO permeate tank T3 and stored, and used for drinking water and domestic water.
他方、原水が塩分濃度の低い河川水等のかん水である場合には、三方弁Vによってバイパスラインjを開くとともに、脱塩水の第2逆浸透膜装置RO−2への流れを遮断する。すると、第1逆浸透膜装置RO−1によって脱塩処理がなされた脱塩水は、第2逆浸透膜装置RO−2をバイパスしてバイパスラインjへと流れ、この脱塩水は、処理水としてそのまま処理水ラインgを通ってRO透過水タンクTへと送られて貯留され、飲料水や生活水としての用途に供される。 On the other hand, when the raw water is brine such as river water having a low salinity concentration, the three-way valve V opens the bypass line j and blocks the flow of the desalted water to the second reverse osmosis membrane device RO-2. Then, the desalted water that has been desalted by the first reverse osmosis membrane device RO-1 flows to the bypass line j, bypassing the second reverse osmosis membrane device RO-2, and this desalted water is used as treated water. As it is, it is sent to the RO permeate tank T through the treated water line g and stored, and used for drinking water or domestic water.
ところで、造水装置を運転しないで放置しておく場合には、給水ポンプP4を駆動してRO給水タンクT2内の濾過水を給水ラインkから保管剤溶解器R3へと送る。すると、保管剤溶解器R3に収容された保管剤が溶解して濾過水に混合されて保管液が生成され、この保管液は、保管液ラインmから濾過水ラインd,eを通って第1逆浸透膜装置RO−1へと流れて該第1逆浸透膜装置RO−1に充填されるため、第1逆浸透膜装置R0−1の停止中の有機物汚染等が保管液によって防がれる。尚、第2逆浸透膜装置RO−2には、第1逆浸透膜装置RO−1で処理された水で満たされるため、このような処理は特に必要ではない。 By the way, when leaving the water freshener without operating, the water supply pump P4 is driven to send the filtered water in the RO water supply tank T2 from the water supply line k to the storage agent dissolver R3. Then, the preservative stored in the preservative solubilizer R3 is dissolved and mixed with the filtered water to generate a storage liquid. This storage liquid passes through the filtered water lines d and e from the storage liquid line m to the first. Since it flows to the reverse osmosis membrane device RO-1 and is filled in the first reverse osmosis membrane device RO-1, organic matter contamination or the like while the first reverse osmosis membrane device R0-1 is stopped is prevented by the storage liquid. . Since the second reverse osmosis membrane device RO-2 is filled with water treated by the first reverse osmosis membrane device RO-1, such treatment is not particularly necessary.
以上において、本実施の形態に係る造水装置においては、塩分濃度が高い海水に対しては第1及び第2逆浸透膜装置RO−1,RO−2によって濾過水を2段処理して脱塩し、塩分濃度が低い河川水等のかん水に対しては第1逆浸透膜装置RO−1によって脱塩処理された脱塩水を第2逆浸透膜装置RO−2をバイパスさせてそのまま処理水としてRO透過水タンクT3へと排出するようにしたため、海水及びかん水の何れに対しても対応可能となり、その汎用性が高められる。この場合、第1逆浸透膜装置RO−1によって1段目の脱塩処理がなされた脱塩水の流れ経路の切り替えが三方弁Vによって容易になされる。 In the above, in the desalination apparatus according to the present embodiment, the seawater with a high salinity concentration is subjected to two stages of filtered water removal by the first and second reverse osmosis membrane apparatuses RO-1 and RO-2. For salt water such as river water having a low salinity concentration, the desalted water desalted by the first reverse osmosis membrane device RO-1 is bypassed by the second reverse osmosis membrane device RO-2 and treated as it is. Since it discharges to the RO permeated water tank T3, it becomes possible to deal with both seawater and brine and its versatility is enhanced. In this case, the flow path of the desalted water that has been subjected to the first desalting treatment by the first reverse osmosis membrane device RO-1 is easily switched by the three-way valve V.
又、かん水に対しては濾過水を第1逆浸透膜装置RO−1のみによって1段処理するようにしたため、かん水に対する処理時間が短縮されて処理容量の増大が図られる。 In addition, since the filtered water is treated in one stage only by the first reverse osmosis membrane device RO-1, the treatment time for the brine is shortened and the treatment capacity is increased.
本発明は、移動体に搭載されて移動可能であって、脱塩手段として複数の逆浸透膜処理手段を備える造水装置とこれを用いた造水方法に対して有用である。 INDUSTRIAL APPLICABILITY The present invention is useful for a fresh water generating apparatus that is mounted on a moving body and is movable, and that includes a plurality of reverse osmosis membrane treatment means as a desalting means, and a fresh water generation method using the same.
AC1,AC2 ACカートリッジ
a 取水ライン
b 原水ライン
c,d,e 濾過水ライン
f 脱塩水ライン(送水ライン)
g 処理水ライン
j バイパスライン
KM−1〜KM−3 KM濾過器
P1 KM給水ポンプ
P2 RO給水ポンプ
P3 高圧ポンプ
P4 給水ポンプ
RO−1 第1逆浸透膜装置
RO−2 第2逆浸透膜装置
T1 原水タンク
T2 RO給水タンク
T3 RO浸透水タンク
V 三方弁(切換手段)
100 車両(移動体)
AC1, AC2 AC cartridge a Intake line b Raw water line c, d, e Filtration water line f Demineralized water line (water supply line)
g Treated water line j Bypass line KM-1 to KM-3 KM filter P1 KM feed pump P2 RO feed pump P3 High pressure pump P4 Feed pump RO-1 1st reverse osmosis membrane device RO-2 2nd reverse osmosis membrane device T1 Raw water tank T2 RO water supply tank T3 RO osmotic water tank V Three-way valve (switching means)
100 vehicle (moving body)
Claims (5)
前記第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段に送水するための送水ラインに切換手段を設けるとともに、前記第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段をバイパスして処理水として系外へ排出するバイパスラインを設けたことを特徴とする造水装置。 Filter means for removing suspended substances from raw water to obtain filtered water, and first and second arranged in series for desalting the filtered water from the filter means, which can be mounted on a moving body. In the fresh water generator comprising the reverse osmosis membrane treatment means,
The deionized water from the first reverse osmosis membrane treatment means is provided with a switching means in a water supply line for sending demineralized water from the first reverse osmosis membrane treatment means to the second reverse osmosis membrane treatment means. Is provided with a bypass line that bypasses the second reverse osmosis membrane treatment means and discharges it as treated water to the outside of the system.
前記第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段に送水するための送水ラインに設けられた切換手段によって、第1の逆浸透膜処理手段からの脱塩水を前記第2の逆浸透膜処理手段をバイパスして処理水として系外へ排出することを特徴とする造水方法。 Filter means for removing suspended substances from raw water to obtain filtered water, and first and second arranged in series for desalting the filtered water from the filter means, which can be mounted on a moving body. In a fresh water generation method for obtaining treated water using a fresh water generator comprising the reverse osmosis membrane treatment means of
Demineralized water from the first reverse osmosis membrane treatment means is provided by a switching means provided in a water supply line for sending demineralized water from the first reverse osmosis membrane treatment means to the second reverse osmosis membrane treatment means. Is discharged from the system as treated water, bypassing the second reverse osmosis membrane treatment means.
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