JP5168615B2

JP5168615B2 - Reverse osmosis membrane treatment equipment

Info

Publication number: JP5168615B2
Application number: JP2007043253A
Authority: JP
Inventors: 剛米田; 敦行真鍋
Original assignee: Miura Co Ltd
Current assignee: Miura Co Ltd
Priority date: 2007-02-23
Filing date: 2007-02-23
Publication date: 2013-03-21
Anticipated expiration: 2027-02-23
Also published as: JP2008207049A

Description

本発明は、液体に溶解しているイオンや分子或いは混入している不純物を液体から取り除く逆浸透膜エレメントをベッセルに収容した逆浸透膜処理装置に関する。 The present invention relates to a reverse osmosis membrane treatment apparatus in which a reverse osmosis membrane element for removing ions or molecules dissolved in a liquid or mixed impurities from a liquid is contained in a vessel.

液体に溶解しているイオンや分子或いは混入している不純物を液体から取り除く手段として、液体は透過させるが液体内に溶解しているイオンや分子或いは混入している不純物を透過させない性質を持つ半透膜からなるスパイラル構造の逆浸透膜エレメントをベッセルに収容した逆浸透膜処理装置が知られている。 As a means of removing ions, molecules or mixed impurities dissolved in the liquid from the liquid, it has a property of allowing the liquid to permeate but not transmitting ions, molecules or mixed impurities dissolved in the liquid. A reverse osmosis membrane processing apparatus is known in which a reverse osmosis membrane element having a spiral structure made of a permeable membrane is accommodated in a vessel.

この逆浸透膜処理装置は、一般に、ベッセルの一端側に有する被処理液供給口部から被処理液を機械的圧力を加えて供給して、逆浸透膜エレメントの一端側へ送り込み、逆浸透膜エレメントを透過した処理液を逆浸透膜エレメントの軸心部に配置した処理液収集管に収集してベッセルの他端側に有する処理液導出口部から導出し、また、逆浸透膜エレメントを透過しなかった濃縮液をベッセルに有する濃縮液排出口部から排出する構造となっている。ベッセルと逆浸透膜エレメントの間には、被処理液供給口部から供給された被処理液がベッセルの内周面と逆浸透膜エレメントの外周面との間に浸入することを阻止するブラインシールリングが装着されている（例えば、特許文献１参照。）。 This reverse osmosis membrane treatment apparatus generally supplies a liquid to be treated by applying a mechanical pressure from a liquid feed port portion to be treated on one end side of a vessel and sends it to one end side of a reverse osmosis membrane element. The treatment liquid that has permeated the element is collected in a treatment liquid collection tube arranged at the axial center of the reverse osmosis membrane element and led out from the treatment liquid outlet port on the other end of the vessel. It has the structure which discharges | emits the concentrate which was not performed from the concentrate discharge port part which has in a vessel. A brine seal between the vessel and the reverse osmosis membrane element that prevents the liquid to be treated supplied from the treatment liquid supply port from entering between the inner peripheral surface of the vessel and the outer peripheral surface of the reverse osmosis membrane element. A ring is attached (see, for example, Patent Document 1).

ブラインシールリングとしては、特許文献１では開示されていないが、一側に開口する断面Ｖ字状となっているものが知られている。図６に示すように、前記のような形状のブラインシールリング２７は、逆浸透膜エレメント２８の被処理液供給口部側に設けられているリング状の押さえ端部２９の外周に形成された環状溝３０内に装着されており、そのＶ形開口部３１が被処理液供給口部側に開口するように配置されている。そして、被処理液供給口部から供給された被処理液の液圧を受けてブラインシールリング２７のＶ形開口部３１が押し広げられてベッセルの内周面と圧接してシール効果を発揮させるようになっている。
特開２０００−１８９７６５号公報 As the brine seal ring, although not disclosed in Patent Document 1, a brine seal ring having a V-shaped cross section that opens to one side is known. As shown in FIG. 6, the brine seal ring 27 having the above-described shape is formed on the outer periphery of a ring-shaped pressing end portion 29 provided on the liquid supply port side of the reverse osmosis membrane element 28. It is mounted in the annular groove 30 and is arranged so that its V-shaped opening 31 opens toward the liquid supply port to be processed. Then, the V-shaped opening 31 of the brine seal ring 27 is expanded by receiving the liquid pressure of the liquid to be processed supplied from the liquid supply port for the liquid to be processed, and is brought into pressure contact with the inner peripheral surface of the vessel to exhibit the sealing effect. It is like that.
JP 2000-189765 A

しかしながら、前記のようなブラインシールリング２７によるシール構造によれば、逆浸透膜エレメント２８の保守や交換時にブラインシールリング２７を被処理液供給口部側へ引き出そうとすると、Ｖ形開口部３１の外側壁の端部がベッセルの内周と接触して、Ｖ形開口部３１がより一層開口するようになって引き出し抵抗が大きくなり、引き出すことが困難になるので処理液導出口部側から行わなければならず、また、逆浸透膜エレメント２７をベッセルへ挿入する場合も、同様な理由から被処理液供給口部側から行わなければならないので、逆浸透膜処理装置の軸方向前後にメンテナンススペースが必要となる。このため、逆浸透膜処理装置の設置に広いスペースが必要になるといった問題があった。 However, according to the sealing structure using the brine seal ring 27 as described above, when the brine seal ring 27 is pulled out to the liquid supply port side during maintenance or replacement of the reverse osmosis membrane element 28, the V-shaped opening 31 Since the end of the outer wall comes into contact with the inner periphery of the vessel, the V-shaped opening 31 is further opened, the drawing resistance is increased, and it is difficult to pull out. In addition, when the reverse osmosis membrane element 27 is inserted into the vessel, it must be performed from the liquid supply port side for the same reason. Is required. For this reason, there has been a problem that a large space is required to install the reverse osmosis membrane treatment apparatus.

本発明の目的は、逆浸透膜エレメントの交換をベッセルの両端側のいずれの側からも容易に行えるようにすることにより、逆浸透膜エレメントの交換作業を良くするとともに、逆浸透膜処理装置の設置の小スペース化が図れるようにした逆浸透膜処理装置を提供することにある。 The object of the present invention is to facilitate the exchange of the reverse osmosis membrane element by making it possible to easily exchange the reverse osmosis membrane element from either side of the vessel. An object of the present invention is to provide a reverse osmosis membrane processing apparatus that can reduce the installation space.

上記の目的を達成するために、請求項１に記載の発明は、両端側に閉鎖蓋が着脱可能に取り付けられた筒状体の一端側に被処理液供給口部を有し、他端側に濃縮液排出口部を有し、そして筒状体の一端側に処理液導出口部を有するベッセルの内部に逆浸透膜エレメントを収容した逆浸透膜処理装置において、前記逆浸透膜エレメントは、両端部にリング状の押さえ端部がそれぞれ設けられ、この両押さえ端部の外周には環状溝がそれぞれ形成され、被処理液供給口部側の押さえ端部の環状溝には、押さえ端部の外周面と筒状体の内周面との間をシールするＯリング又は断面略Ｘ状リング構造のブラインシールリングが装着されており、前記筒状体の両端側に取り付けられる前記閉鎖蓋は略椀状にそれぞれ形成され、その開口端部外周が取付部位となって前記筒状体内にそれぞれ嵌合し、前記筒状体と、前記各閉鎖蓋の取付部位との間のシール及び前記逆浸透膜エレメントの押さえ端部の外周面との間のシールは、前記筒状体の両端部内周面に形成された同一のシール面上でそれぞれシールされるようになっており、前記被処理液供給口部側のシール面上では、前記閉鎖蓋の取付部位と前記逆浸透膜エレメントの押さえ端部とが当接し、前記シール面以外は、その内径が前記シール面の内径より大径に形成され、また、前記各閉鎖蓋は椀状部位が前記筒状体外へ突出するように前記シール面にそれぞれ取り付けられるようになっており、そして、一方の前記閉鎖蓋の前記椀状部位に前記被処理液供給口部が設けられ、他方の前記閉鎖蓋の前記椀状部位に前記濃縮液排出口部が設けられ、そして、前記筒状体の両端側に取り付けられる前記閉鎖蓋の何れか一方の閉鎖蓋の前記椀状部位に前記処理液導出口部が設けられていることを特徴とする。
In order to achieve the above object, the invention described in claim 1 has a liquid supply port to be processed on one end side of a cylindrical body in which closing lids are detachably attached to both end sides, and the other end side. In the reverse osmosis membrane treatment apparatus in which the reverse osmosis membrane element is accommodated in the vessel having the concentrated solution discharge port portion and the treatment liquid outlet port portion on one end side of the cylindrical body, the reverse osmosis membrane element includes: Ring-shaped pressing ends are provided at both ends, and annular grooves are formed on the outer circumferences of both pressing ends, respectively. The O-ring that seals between the outer peripheral surface of the cylindrical body and the inner peripheral surface of the cylindrical body or a brine seal ring having a substantially X-shaped cross section is mounted, and the closing lids attached to both ends of the cylindrical body are Each is formed in a substantially bowl shape, and the outer periphery of the opening end is the mounting part. Respectively fitted in the tubular body becomes, the seal between the tubular body and the seal and the outer peripheral surface of the holding end portion of the reverse osmosis membrane elements between the mounting portion of each of the closed chains lid is adapted to be sealed, respectively on the tubular body the same sealing surface formed in both end portions in the circumferential surface of the on the sealing surface of the liquid to be treated supply port side of the closed chain cover contact mounting portion and the pressing edge portion of the reverse osmosis membrane element abuts, other than the sealing surface, its inner diameter is formed larger in diameter than the inner diameter of the sealing surface, also the respective closed chain lid is cup-shaped portion Each of the sealing surfaces is attached to the sealing surface so as to protrude out of the cylindrical body, and the treatment target liquid supply port portion is provided in the bowl-shaped portion of one of the closing lids, and the other closing is performed. The concentrated solution outlet is provided in the bowl-shaped part of the lid. Then, characterized in that the treatment liquid outlet portion is provided in the bowl-shaped portion of one of the closure lid of the closure cap attached to opposite ends of the tubular body.

請求項２に記載の発明は、両端側に閉鎖蓋が着脱可能に取り付けられた筒状体の一端側に被処理液供給口部を有し、他端側に濃縮液排出口部を有し、そして筒状体の両端に処理液導出口部を有するベッセルの内部に逆浸透膜エレメントを収容した逆浸透膜処理装置において、前記逆浸透膜エレメントは、両端部にリング状の押さえ端部がそれぞれ設けられ、この両押さえ端部の外周には環状溝がそれぞれ形成され、被処理液供給口部側の押さえ端部の環状溝には、押さえ端部の外周面と筒状体の内周面との間をシールするＯリング又は断面略Ｘ状リング構造のブラインシールリングが装着されており、前記筒状体の両端側に取り付けられる前記閉鎖蓋は略椀状にそれぞれ形成され、その開口端部外周が取付部位となって前記筒状体内にそれぞれ嵌合し、前記筒状体と、前記各閉鎖蓋の取付部位との間のシール及び前記逆浸透膜エレメントの押さえ端部の外周面との間のシールは、前記筒状体の両端部内周面に形成された同一のシール面上でそれぞれシールされるようになっており、前記被処理液供給口部側のシール面上では、前記閉鎖蓋の取付部位と前記逆浸透膜エレメントの押さえ端部とが当接し、前記シール面以外は、その内径が前記シール面の内径より大径に形成され、また、前記各閉鎖蓋は椀状部位が前記筒状体外へ突出するように前記シール面にそれぞれ取り付けられるようになっており、そして、一方の前記閉鎖蓋の前記椀状部位に前記被処理液供給口部が設けられ、他方の前記閉鎖蓋の前記椀状部位に前記濃縮液排出口部が設けられ、そして、前記筒状体の両端側に取り付けられる両方の閉鎖蓋の前記椀状部位に前記処理液導出口部が設けられていることを特徴とする。
The invention described in claim 2 has a liquid supply port portion to be treated on one end side of a cylindrical body in which closing lids are detachably attached to both end sides, and a concentrate discharge port portion on the other end side. In the reverse osmosis membrane processing apparatus in which a reverse osmosis membrane element is accommodated in a vessel having treatment liquid outlets at both ends of the cylindrical body, the reverse osmosis membrane element has ring-shaped pressing ends at both ends. An annular groove is formed on the outer periphery of each of the holding end portions, respectively, and the annular groove on the holding end portion on the treated liquid supply port side includes the outer peripheral surface of the holding end portion and the inner periphery of the cylindrical body. An O-ring for sealing between the surfaces or a brine seal ring having a substantially X-shaped cross-section is mounted, and the closure lids attached to both ends of the cylindrical body are each formed in a substantially bowl shape, and its opening The outer periphery of the end serves as the attachment site, Fitted, and the cylindrical body, the seal between the outer peripheral surface of the pressing end of the seal and the reverse osmosis membrane elements between the mounting portion of the closed chain lid, in both end portions of the tubular body on the same sealing surface formed on the circumferential surface is adapted to be sealed, respectively, wherein on the sealing surface of the liquid to be treated supply port side, the mounting portion of said closed chain cover of the reverse osmosis membrane element contact with the pressing end portion abuts, other than the sealing surface, its inner diameter is formed larger in diameter than the inner diameter of the sealing surface, also the respective closed chain lid as the bowl-shaped portion protrudes into the tubular outside It is adapted to be respectively attached to the sealing surface, and the treatment liquid supply port is provided in the bowl-shaped part of one of the closing lids, and the concentration is provided in the bowl-like part of the other closing lid. A liquid discharge port is provided, and at both ends of the cylindrical body Ri said treatment liquid outlet portion to said bowl-shaped portion of the closing lid of both attached to and being provided.

請求項１に記載の逆浸透膜処理装置によれば、前記逆浸透膜エレメントの前記被処理液供給口部側の端部外周に設けられて前記ベッセルとの間をシールする前記ブラインシールリングをＯリング又は断面略Ｘ状リング構造としたので、前記ベッセルの両端側何れの方向へも同じ摺動抵抗で移動させることができる。
According to the reverse osmosis membrane processing apparatus according to claim 1, the brine seal ring provided on the outer periphery of the end of the reverse osmosis membrane element on the side of the liquid supply port to be processed and sealing between the vessel. Since it has an O-ring or a substantially X-shaped cross-section, it can be moved with the same sliding resistance in either direction on both ends of the vessel .

また、前記ベッセルにあって、前記シール面以外は、その内径を前記シール面の内径より大径に形成したので、前記逆浸透膜エレメントを前記ベッセルの前記処理液導出口部側から引き出したり挿入する場合、前記ブラインシールリングと前記ベッセルの前記シール面以外の内周面との間の摺動抵抗が無く、或いは小さく、前記被処理液供給口部側から引き出したり挿入する場合と殆ど変わらない力で前記処理液導出口部側から引き出したり挿入することができる。 Further, since the inner diameter of the vessel other than the sealing surface is larger than the inner diameter of the sealing surface, the reverse osmosis membrane element is pulled out or inserted from the processing liquid outlet port side of the vessel. In this case, there is no or little sliding resistance between the brine seal ring and the inner peripheral surface other than the seal surface of the vessel, which is almost the same as the case where it is pulled out or inserted from the treated liquid supply port side. It can be pulled out or inserted from the treatment liquid outlet port side by force.

また、前記ベッセルから前記逆浸透膜エレメントを引き出し、また、前記ベッセルへ前記逆浸透膜エレメントを挿入する作業を前記ベッセルの両端側何れの方向からも行えるので、前記ベッセル内の前記逆浸透膜エレメントの交換作業を前記ベッセルのいずれの端側でも行うことができる。従って、前記逆浸透膜処理装置の軸方向の一方にメンテナンススペースがあればよく、これにより前記逆浸透膜処理装置の設置の小スペース化を図ることができる。 Further, the reverse osmosis membrane element can be pulled out from the vessel and the reverse osmosis membrane element can be inserted into the vessel from either side of the vessel, so the reverse osmosis membrane element in the vessel The replacement work can be performed at either end of the vessel. Therefore, it suffices if there is a maintenance space on one side in the axial direction of the reverse osmosis membrane treatment apparatus, thereby reducing the installation space of the reverse osmosis membrane treatment apparatus.

さらに、前記筒状体の両端側に取り付けられる前記閉鎖蓋は略椀状にそれぞれ形成されているので、前記ベッセル内へ被処理液を供給する前記被処理液供給口部や前記ベッセル内から濃縮液を排出する前記濃縮液排出口部や前記逆浸透膜エレメントで処理した処理液を導出する前記処理液導出口部を設けるために、前記ベッセルと前記逆浸透膜エレメントとの間に形成される空間を前記閉鎖蓋の前記椀状部位内部に得ることができる。そして、前記閉鎖蓋は、その開口端部外周が前記取付部位となって前記椀状部位が前記筒状体外へ突出するように前記シール面に取り付けられるようになっているので、前記筒状体の長さを短くすることができる。
Further , since the closing lids attached to both ends of the cylindrical body are respectively formed in a substantially bowl shape, the liquid to be processed is supplied from the processing liquid supply port for supplying the liquid to be processed into the vessel or from the inside of the vessel. Formed between the vessel and the reverse osmosis membrane element to provide the concentrated liquid discharge port for discharging the liquid and the treatment liquid outlet for discharging the treatment liquid processed by the reverse osmosis membrane element. A space can be obtained inside the bowl-shaped part of the closing lid. And the said closure lid is attached to the said sealing surface so that the said outer periphery of the opening edge part may become the said attachment part, and the said hook-shaped part protrudes out of the said cylindrical body, The said cylindrical body Can be shortened.

これにより、前記筒状体内における前記逆浸透膜エレメントの端部が前記筒状体の端部へ近づき、この結果、前記筒状体の端部から筒奥方向へ向かって形成された前記シール面の長さも短くなるので、前記ベッセルから前記逆浸透膜エレメントを引き出したり、前記ベッセルへ前記逆浸透膜エレメントを挿入する際の、前記シール面を移動する前記ブラインシールリングの移動量を小さくすることができ、これにより前記ベッセル内の前記逆浸透膜エレメントの交換作業を一層容易に行うことができる。 Thereby, the end portion of the reverse osmosis membrane element in the cylindrical body approaches the end portion of the cylindrical body, and as a result, the sealing surface formed from the end portion of the cylindrical body toward the depth of the cylinder. Therefore, when the reverse osmosis membrane element is pulled out from the vessel or the reverse osmosis membrane element is inserted into the vessel, the amount of movement of the brine seal ring that moves the sealing surface is reduced. As a result, replacement of the reverse osmosis membrane element in the vessel can be performed more easily.

請求項２に記載の逆浸透膜処理装置によれば、両端側に閉鎖蓋が着脱可能に取り付けられた筒状体の一端側に被処理液供給口部を有し、他端側に濃縮液排出口部を有し、そして筒状体の両端に処理液導出口部を有することにより、筒状体の一端側の処理液導出口部を処理液の水質検査するためのサンプリング取り出し口として利用することができるものであって、このように構成された逆浸透膜処理装置において、前記逆浸透膜エレメントの前記被処理液供給口部側の端部外周に設けられて前記ベッセルとの間をシールする前記ブラインシールリングをＯリング又は断面略Ｘ状リング構造としたので、前記ベッセルの両端側何れの方向へも同じ摺動抵抗で移動させることができる。
According to the reverse osmosis membrane treatment apparatus according to claim 2 , the treatment liquid supply port portion is provided on one end side of the cylindrical body in which the closing lids are detachably attached to both end sides, and the concentrate is provided on the other end side. By having a discharge port and a treatment liquid outlet at both ends of the cylindrical body, the treatment liquid outlet on one end of the cylindrical body is used as a sampling outlet for water quality inspection of the treatment liquid. In the reverse osmosis membrane processing apparatus configured as described above, the reverse osmosis membrane element is provided on the outer periphery of the end of the reverse osmosis membrane element on the side of the liquid supply port to be processed and between the vessel. Since the brine seal ring to be sealed has an O-ring or a substantially X-shaped ring structure, it can be moved with the same sliding resistance in both directions on both ends of the vessel .

以下、本発明に係る逆浸透膜処理装置を実施するための最良の形態を説明する。
図１，図２は本発明に係る逆浸透膜処理装置の実施の形態の第１例を示すものであり、図１は本例の逆浸透膜処理装置の縦断面図、図２は本例の逆浸透膜処理装置におけるベッセルから逆浸透膜エレメントを引き出す過程を示す説明図である。 Hereinafter, the best mode for carrying out the reverse osmosis membrane treatment apparatus according to the present invention will be described.
1 and 2 show a first example of an embodiment of a reverse osmosis membrane treatment apparatus according to the present invention, FIG. 1 is a longitudinal sectional view of the reverse osmosis membrane treatment apparatus of this example, and FIG. 2 is this example. It is explanatory drawing which shows the process in which a reverse osmosis membrane element is pulled out from the vessel in the reverse osmosis membrane processing apparatus.

本例の逆浸透膜処理装置は、図１に示すように、ステンレススチール製のベッセル１内にスパイラル構造の逆浸透膜エレメント２が収容されている。ベッセル１は、内部に逆浸透膜エレメント２を収容する筒状体３の両端側に閉鎖蓋４，５が着脱可能に、且つ回転自在にそれぞれ取り付けられている。 In the reverse osmosis membrane processing apparatus of this example, as shown in FIG. 1, a reverse osmosis membrane element 2 having a spiral structure is accommodated in a stainless steel vessel 1. In the vessel 1, closing lids 4 and 5 are detachably and rotatably attached to both end sides of a cylindrical body 3 that accommodates the reverse osmosis membrane element 2 therein.

この閉鎖蓋４，５は略椀状にそれぞれ形成され、その開口端部外周が取付部位６，７となって筒状体３内にそれぞれ嵌合し、両椀状部位８，９は筒状体３の軸方向の外方へ突出するようにそれぞれ取り付けられている。筒状体３内に嵌合した両取付部位６，７は、リティニングリング１０，１０によりそれぞれ抜け止めされている。この両取付部位６，７の外周面には、筒状体３の内周面との間をシールするシールリング１１，１１がそれぞれ装着されている。 The closing lids 4 and 5 are each formed in a substantially bowl shape, and the outer periphery of the opening end is attached to the tubular body 3 as attachment portions 6 and 7, respectively. The body 3 is attached so as to protrude outward in the axial direction. Both attachment parts 6 and 7 fitted in the cylindrical body 3 are prevented from coming off by retaining rings 10 and 10, respectively. Seal rings 11 and 11 for sealing between the inner peripheral surface of the cylindrical body 3 are mounted on the outer peripheral surfaces of the attachment portions 6 and 7, respectively.

閉鎖蓋４，５のうち、一方の閉鎖蓋４の椀状部位８には、椀状部位８内と連通する被処理液供給口部１２が設けられている。この被処理液供給口部１２は管状に構成されており、筒状体３の軸方向と直交する方向へ開口し、その開口端部が筒状体３の外径側面から僅かに半径方向の外側へ突出する長さとなっている。 Of the closure lids 4 and 5, the liquid-feeding port portion 12 to be treated is provided in the bowl-shaped portion 8 of one closure lid 4 to communicate with the inside of the bowl-shaped portion 8. The liquid supply port 12 to be treated is formed in a tubular shape and opens in a direction orthogonal to the axial direction of the cylindrical body 3, and the opening end thereof is slightly in the radial direction from the outer diameter side surface of the cylindrical body 3. The length protrudes outward.

他方の閉鎖蓋５の椀状部位９には、椀状部位９内と連通する処理液導出口部１３と濃縮液排出口部１４が設けられている。この処理液導出口部１３と濃縮液排出口部１４は、それぞれ管状に構成されており、いずれも筒状体３の軸方向と直交する方向へそれぞれ開口している。このうち、濃縮液排出口部１４は、被処理液供給口部１２と同様に、その開口端部が筒状体３の外径側面から僅かに半径方向の外側へ突出する長さとなっている。 A treatment liquid outlet port portion 13 and a concentrate discharge port portion 14 communicating with the inside of the hook-shaped portion 9 are provided in the hook-shaped portion 9 of the other closing lid 5. The treatment liquid outlet 13 and the concentrated liquid outlet 14 are each formed in a tubular shape, and both are open in a direction orthogonal to the axial direction of the cylindrical body 3. Among these, the concentrated liquid discharge port portion 14 has a length in which the opening end portion slightly protrudes outward in the radial direction from the outer diameter side surface of the cylindrical body 3, similarly to the liquid supply port portion 12 to be processed. .

ベッセル１内に収容される逆浸透膜エレメント２は、スパイラル状に巻かれた逆浸透膜１５の軸心部に処理液収集管１６が配置されていて、両端部にはリング状の押さえ端部１７，１８がそれぞれ設けられている。この両押さえ端部１７，１８の外周には環状溝１９，２０がそれぞれ形成されており、両押さえ端部１７，１８の外周面と筒状体３の内周面との間をそれぞれシールするブラインシールリング２１，２１がそれぞれ装着されている。このブラインシールリング２１は、少なくとも、被処理液供給口部１２が設けられている閉鎖蓋４側の環状溝１９へ装着されていればよく、必ずしも両環状溝１９，２０のそれぞれに装着されている必要はない。本例では、ブラインシールリング２１は、被処理液供給口部１２が設けられている閉鎖蓋４側の環状溝１９にのみ装着されている。 The reverse osmosis membrane element 2 accommodated in the vessel 1 has a treatment liquid collecting pipe 16 disposed at the axial center of a spirally wound reverse osmosis membrane 15 and ring-shaped pressing end portions at both ends. 17 and 18 are provided. Annular grooves 19 and 20 are formed on the outer peripheries of both pressing end portions 17 and 18, respectively, and seal between the outer peripheral surface of both pressing end portions 17 and 18 and the inner peripheral surface of the cylindrical body 3. Brine seal rings 21 and 21 are mounted, respectively. The brine seal ring 21 only needs to be attached to at least the annular groove 19 on the side of the closing lid 4 provided with the liquid supply port 12 to be processed, and is not necessarily attached to each of the annular grooves 19 and 20. There is no need to be. In this example, the brine seal ring 21 is attached only to the annular groove 19 on the closing lid 4 side where the liquid supply port 12 to be processed is provided.

このブラインシールリング２１は、Ｏリング又は断面略Ｘ状リング構造となっている。本例では、Ｏリング構造のブラインシールリング２１が使用されている。また、ブラインシールリング２１は、筒状体３内への出し入れを容易にするため、摺動抵抗を抑えた材質、例えばフッ素樹脂を使用する。本例では、ゴム製リングの表面にフッ素樹脂がコーティングされている。 This brine seal ring 21 has an O-ring or a substantially X-shaped ring structure in cross section. In this example, a brine seal ring 21 having an O-ring structure is used. The brine seal ring 21 is made of a material having reduced sliding resistance, for example, a fluororesin, for facilitating the insertion and removal from the cylindrical body 3. In this example, the surface of the rubber ring is coated with a fluororesin.

また、逆浸透膜１５の軸心部に配置された処理液収集管１６において、被処理液供給口部１２が設けられている閉鎖蓋４側の開口部には、処理液収集管１６へ被処理液が入ることを防止する封止キャップ２２が装着され、また、処理液導出口部１３が設けられている閉鎖蓋５側の開口部には、処理液収集管１６と処理液導出口部１３を接続するアダプタ２３が装着されている。 Further, in the treatment liquid collection tube 16 disposed at the axial center of the reverse osmosis membrane 15, the opening on the side of the closing lid 4 where the treatment liquid supply port 12 is provided is covered with the treatment liquid collection tube 16. A sealing cap 22 for preventing the processing liquid from entering is attached, and the processing liquid collection tube 16 and the processing liquid outlet port are provided in the opening on the side of the closing lid 5 where the processing liquid outlet port 13 is provided. An adapter 23 for connecting 13 is mounted.

その両端側に閉鎖蓋４，５がそれぞれ取り付けられ、内部に逆浸透膜エレメント２を収容する筒状体３にあって、筒状体３と、各閉鎖蓋４，５の取付部位６，７との間のシール及び逆浸透膜エレメント２の押さえ端部１７，１８の外周面との間のシールは、筒状体３の両端部内周面に形成された同一のシール面２４，２４上でそれぞれシールされるようになっている。 Closed lids 4 and 5 are respectively attached to both ends thereof, and in the cylindrical body 3 that accommodates the reverse osmosis membrane element 2 inside, the cylindrical body 3 and the attachment portions 6 and 7 of the respective closed lids 4 and 5 are provided. And the seal between the presser end portions 17 and 18 of the reverse osmosis membrane element 2 on the same seal surfaces 24 and 24 formed on the inner peripheral surfaces of both ends of the cylindrical body 3. Each is sealed.

この筒状体３の両端部内周面にそれぞれ形成されたシール面２４，２４は、筒状体３の端部からそれぞれ反対側の筒奥方向へ必要最小限の長さＬ，Ｌをもって形成され、この両シール面２４，２４部以外は、その内径は両シール面２４，２４の内径より大径に形成されている。 The seal surfaces 24 and 24 formed on the inner peripheral surfaces of both ends of the cylindrical body 3 are formed with the minimum lengths L and L from the end of the cylindrical body 3 to the opposite cylinder depth direction, respectively. Except for the seal surfaces 24 and 24, the inner diameter is larger than the inner diameter of the seal surfaces 24 and 24.

両シール面２４，２４をそれぞれ形成する必要最小限の長Ｌさとは、筒状体３の両端側に各閉鎖蓋４，５がシールされ且つ確実に取り付けられるスペースと、逆浸透膜エレメント２の両押さえ端部１７，１８の外周面がシールされるスペースが確保できる必要最小限度の長さをいう。 The necessary minimum length L for forming both the sealing surfaces 24 and 24 is a space in which the closing lids 4 and 5 are sealed and securely attached to both ends of the cylindrical body 3, and the reverse osmosis membrane element 2. This is the minimum length necessary to secure a space for sealing the outer peripheral surfaces of the pressing end portions 17 and 18.

本例では、両シール面２４，２４を形成した各端部筒状部位２５，２５と、この両端部筒状部位２５，２５よりも内径を大径とした中間筒状部位２６が別個に作られ、中間筒状部位２６の両側に各端部筒状部位２５，２５が溶接によりそれぞれ接続固定されて筒状体３が形成されている。 In this example, each end cylindrical part 25, 25 in which both seal surfaces 24, 24 are formed, and an intermediate cylindrical part 26 having an inner diameter larger than the both end cylindrical parts 25, 25 are made separately. The end cylindrical portions 25 and 25 are connected and fixed to both sides of the intermediate cylindrical portion 26 by welding to form the cylindrical body 3.

このように構成された逆浸透膜処理装置では、逆浸透膜エレメント２の両端部に設けられている押さえ端部１７，１８の環状溝１９，２０にそれぞれ装着され、筒状体３の各シール面２４，２４との間をシールするブラインシールリング２１がＯリング又は断面略Ｘ状リング構造となっているので、逆浸透膜エレメント２を筒状体３の両端側何れの方向へも同じ摺動抵抗で移動させることができる。 In the reverse osmosis membrane treatment apparatus configured as described above, the seals of the cylindrical body 3 are respectively mounted in the annular grooves 19 and 20 of the holding end portions 17 and 18 provided at both ends of the reverse osmosis membrane element 2. Since the brine seal ring 21 that seals between the surfaces 24 and 24 has an O-ring or a substantially X-shaped ring structure, the reverse osmosis membrane element 2 is slid in the same direction in either direction on both ends of the cylindrical body 3. It can be moved by dynamic resistance.

また、筒状体３の内周面に形成された各シール面２４，２４は、筒状体３の端部からそれぞれ反対側の筒奥方向へ必要最小限の長さＬをもって形成されているので、筒状体３から逆浸透膜エレメント２を引き出したり、筒状体３へ逆浸透膜エレメント２を挿入する際の、摺動抵抗を受けながらシール面２４を移動するブラインシールリング２１の移動量が小さく、これにより筒状体３内の逆浸透膜エレメント２の交換作業を容易に行うことができる。 Further, the seal surfaces 24, 24 formed on the inner peripheral surface of the cylindrical body 3 are formed with a minimum length L from the end of the cylindrical body 3 to the opposite cylinder back direction. Therefore, when the reverse osmosis membrane element 2 is pulled out from the cylindrical body 3 or the reverse osmosis membrane element 2 is inserted into the cylindrical body 3, the movement of the brine seal ring 21 that moves the seal surface 24 while receiving the sliding resistance is performed. The amount is small, whereby the replacement work of the reverse osmosis membrane element 2 in the cylindrical body 3 can be easily performed.

また、筒状体３にあって、各シール面２４，２４部以外は、その内径を各シール面２４，２４の内径より大径に形成したので、逆浸透膜エレメント２を筒状体３の処理液導出口部１３側から引き出したり挿入する場合、ブラインシールリング２１とシール面２４以外の内周面との間の摺動抵抗が無く、或いは小さく、被処理液供給口部１２側から引き出したり挿入する場合と殆ど変わらない力で処理液導出口部１３側から引き出したり挿入することができる。 In addition, since the inner diameter of the cylindrical body 3 is larger than the inner diameter of the seal surfaces 24 and 24 except for the seal surfaces 24 and 24, the reverse osmosis membrane element 2 is formed on the cylindrical body 3. When pulling out or inserting from the treatment liquid outlet 13 side, there is no or little sliding resistance between the brine seal ring 21 and the inner peripheral surface other than the seal surface 24, and it is pulled out from the liquid supply inlet 12 side. Can be pulled out or inserted from the treatment liquid outlet 13 side with a force that is almost the same as that of insertion.

また、筒状体３から逆浸透膜エレメント２を引き出し、また、筒状体３へ逆浸透膜エレメント２を挿入する作業を筒状体３の両端側何れの方向からも行えるので、筒状体３内の逆浸透膜エレメント２の交換作業を筒状体３のいずれの端側でも行うことができる。従って、逆浸透膜処理装置の軸方向の一方にメンテナンススペースがあればよく、これにより逆浸透膜処理装置の設置の小スペース化を図ることができる。 Further, the operation of pulling out the reverse osmosis membrane element 2 from the cylindrical body 3 and inserting the reverse osmosis membrane element 2 into the cylindrical body 3 can be performed from either direction on both ends of the cylindrical body 3. The replacement work of the reverse osmosis membrane element 2 in 3 can be performed on either end side of the cylindrical body 3. Therefore, it suffices if there is a maintenance space on one side in the axial direction of the reverse osmosis membrane treatment apparatus, which can reduce the installation space of the reverse osmosis membrane treatment apparatus.

また、筒状体３の両端側に取り付けられる閉鎖蓋４，５は略椀状にそれぞれ形成されているので、ベッセル１内へ被処理液を供給する被処理液供給口部１２やベッセル１内から濃縮液を排出する濃縮液排出口部１４や逆浸透膜エレメント２で処理した処理液を導出する処理液導出口部１３を設けるために、ベッセル１と逆浸透膜エレメント２との間に形成される空間を各閉鎖蓋４，５のそれぞれの椀状部位８，９内部に得ることができる。そして、各閉鎖蓋４，５は、それぞれの開口端部外周がそれぞれ取付部位６，７となって、各椀状部位８，９が筒状体３外へそれぞれ突出するように両シール面２４，２４にそれぞれ取り付けられるようになっているので、筒状体３の長さを短くすることができる。 Further, since the closing lids 4 and 5 attached to both ends of the cylindrical body 3 are formed in a substantially bowl shape, the liquid to be processed supply port 12 for supplying the liquid to be processed into the vessel 1 and the inside of the vessel 1 Formed between the vessel 1 and the reverse osmosis membrane element 2 in order to provide the concentrate discharge port portion 14 for discharging the concentrated liquid from the vessel and the treatment liquid outlet port portion 13 for discharging the treatment liquid processed by the reverse osmosis membrane element 2. The space to be created can be obtained inside the respective hook-shaped portions 8 and 9 of the respective closing lids 4 and 5. Each of the closure lids 4 and 5 has both the sealing surfaces 24 so that the outer peripheries of the opening ends become the attachment parts 6 and 7, respectively, and the flanged parts 8 and 9 protrude out of the cylindrical body 3. , 24 can be attached to each other, so that the length of the cylindrical body 3 can be shortened.

これにより、筒状体３内における逆浸透膜エレメント２の端部が筒状体３の端部に近づき、この結果、筒状体３の端部から筒奥方向へ形成されたシール面２４の長さも短くなるので、筒状体３から逆浸透膜エレメント２を引き出したり、筒状体３へ逆浸透膜エレメント２を挿入する際の、シール面２４を移動するブラインシールリング２１の移動量を小さくすることができ、これにより筒状体３内の逆浸透膜エレメント２の交換作業を一層容易に行うことができる。 As a result, the end of the reverse osmosis membrane element 2 in the cylindrical body 3 approaches the end of the cylindrical body 3, and as a result, the seal surface 24 formed from the end of the cylindrical body 3 toward the back of the cylinder. Since the length is also shortened, the amount of movement of the brine seal ring 21 that moves the seal surface 24 when the reverse osmosis membrane element 2 is pulled out from the cylindrical body 3 or when the reverse osmosis membrane element 2 is inserted into the cylindrical body 3 is reduced. Thus, the replacement work of the reverse osmosis membrane element 2 in the cylindrical body 3 can be performed more easily.

また、本例では、閉鎖蓋４，５のうち、一方の閉鎖蓋４の椀状部位８に設けられた被処理液供給口部１２は、筒状体３の軸心方向と直交する方向へ開口し、その開口端部が筒状体３の外径側面から僅かに半径方向の外側へ突出する長さとなっており、また、他方の閉鎖蓋５の椀状部位９に設けられた濃縮液排出口部１４も、被処理液供給口部１２と同様に、その開口端部が筒状体３の外径側面から僅かに半径方向の外側へ突出する長さとなっているので、本例の逆浸透膜処理装置を直列に接続する場合、図３に示すように、一方の逆浸透膜処理装置のベッセル１に設けられている被処理液供給口部１２と他方の逆浸透膜処理装置のベッセル１に設けられている濃縮液排出口部１４を向かい合わせにして複数の逆浸透膜処理装置を平行に配置し、そして、向かい合わせとなっている被処理液供給口部１２と濃縮液排出口部１４を接続器具（図示省略）を用いて直結或いは短い接続用配管（図示省略）を使って接続することができる。 In this example, the liquid supply port 12 to be processed provided in the bowl-shaped portion 8 of one of the closing lids 4 and 5 is in a direction orthogonal to the axial direction of the cylindrical body 3. Concentrated liquid that is open and has an opening end that protrudes slightly outward in the radial direction from the outer diameter side surface of the cylindrical body 3, and is provided in the bowl-shaped portion 9 of the other closing lid 5. Similarly to the liquid supply port portion 12 to be processed, the discharge port portion 14 has a length that slightly protrudes outward in the radial direction from the outer diameter side surface of the cylindrical body 3. When the reverse osmosis membrane treatment apparatus is connected in series, as shown in FIG. 3, the liquid supply port 12 to be treated provided in the vessel 1 of one reverse osmosis membrane treatment apparatus and the other reverse osmosis membrane treatment apparatus A plurality of reverse osmosis membrane treatment devices are arranged in parallel with the concentrate discharge port 14 provided in the vessel 1 facing each other. And the to-be-processed liquid supply port part 12 and the concentrate discharge | emission port part 14 which are facing each other can be connected directly using a connection tool (illustration omitted) or using short connection piping (illustration abbreviation). .

また、本例では、筒状体３は、シール面２４をそれぞれ形成した端部筒状部位２５，２５と、この両端部筒状部位２５，２５よりも内径を大径とした中間筒状部位２６が別個に作られ、中間筒状部位２６の両側に各端部筒状部位２５，２５が溶接によりそれぞれ接続固定されて形成されているので、容易に製造することができる。 In this example, the cylindrical body 3 includes end cylindrical portions 25 and 25 each having a sealing surface 24 and an intermediate cylindrical portion having an inner diameter larger than the both end cylindrical portions 25 and 25. 26 is made separately, and each end cylindrical portion 25, 25 is connected and fixed by welding on both sides of the intermediate cylindrical portion 26, so that it can be easily manufactured.

図４は本発明に係る逆浸透膜処理装置の実施の形態の第２例を示すものであり、図４は本例の逆浸透膜処理装置の縦断面図である。 FIG. 4 shows a second example of the embodiment of the reverse osmosis membrane treatment apparatus according to the present invention, and FIG. 4 is a longitudinal sectional view of the reverse osmosis membrane treatment apparatus of this example.

本例の逆浸透膜処理装置は、第１例と基本構成は同じであり、本例では、両閉鎖蓋４，５のうち、一方の閉鎖蓋４の椀状部位８には、椀状部位８内と連通する被処理液供給口部１２と、同じく椀状部位８内と連通する処理液導出口部１３とが設けられている。この被処理液供給口部１２は管状に構成されており、いずれも筒状体３の軸方向と直交する方向へそれぞれ開口している。このうち、この被処理液供給口部１２は第１例と同様に、その開口端部が筒状体３の外径側面から僅かに半径方向の外側へ突出する長さとなっている。 The reverse osmosis membrane treatment apparatus of this example has the same basic configuration as the first example. In this example, the saddle-like portion 8 of one of the closing lids 4 and 5 has a saddle-like portion. A liquid supply port 12 to be processed that communicates with the inside 8 and a processing liquid outlet 13 that communicates with the inside of the bowl-shaped portion 8 are also provided. The liquid supply port 12 to be processed is formed in a tubular shape, and each of the liquid supply ports 12 is open in a direction orthogonal to the axial direction of the cylindrical body 3. Among these, the to-be-processed liquid supply port part 12 has the length which the opening edge part protrudes from the outer-diameter side surface of the cylindrical body 3 to the outer side of a radial direction like the 1st example.

他方の閉鎖蓋５の椀状部位９には、椀状部位９内と連通する濃縮液排出口部１４が設けられている。この濃縮液排出口部１４は管状に構成されており、筒状体３の軸方向と直交する方向へそれぞれ開口しており、第１例と同様に、その開口端部が筒状体３の外径側面から僅かに半径方向の外側へ突出する長さとなっている。 A concentrated liquid discharge port 14 communicating with the inside of the bowl-shaped part 9 is provided in the bowl-shaped part 9 of the other closing lid 5. The concentrate discharge port portion 14 is formed in a tubular shape and opens in a direction orthogonal to the axial direction of the cylindrical body 3, and the opening end portion of the cylindrical body 3 is the same as in the first example. The length slightly protrudes outward in the radial direction from the outer diameter side surface.

また、逆浸透膜１５の軸心部に配置された処理液収集管１６において、処理液導出口部１３が設けられている閉鎖蓋４側の開口部には、処理液収集管１６と処理液導出口部１３を接続するアダプタ２３が装着され、また、濃縮液排出口部１４が設けられている閉鎖蓋５側の開口部には、処理液収集管１６へ濃縮液が入ることを防止する封止キャップ２２が装着されている。 Further, in the treatment liquid collection tube 16 disposed at the axial center of the reverse osmosis membrane 15, the treatment liquid collection tube 16 and the treatment liquid are disposed in the opening on the side of the closing lid 4 where the treatment liquid outlet 13 is provided. An adapter 23 for connecting the outlet port 13 is mounted, and the concentrated liquid is prevented from entering the processing liquid collection tube 16 in the opening on the side of the closing lid 5 where the concentrated liquid outlet 14 is provided. A sealing cap 22 is attached.

上記構成以外は、第１例と同じ構成となっているので、同一符合を付し、その説明を省略する。 Since it is the same structure as a 1st example except the said structure, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

このように構成された本例の逆浸透膜処理装置では、第１例と同様に、筒状体３内の逆浸透膜エレメント２の交換作業を容易に行うことができ、そして、この交換作業のためのメンテナンススペースは、逆浸透膜処理装置の軸方向の一方にあればよく、これにより逆浸透膜処理装置の設置の小スペース化を図ることができる。 In the reverse osmosis membrane treatment apparatus of this example configured as described above, the reverse osmosis membrane element 2 in the cylindrical body 3 can be easily replaced as in the first example, and this replacement operation Therefore, the maintenance space for the reverse osmosis membrane treatment device only needs to be in one of the axial directions of the reverse osmosis membrane treatment device, thereby reducing the installation space of the reverse osmosis membrane treatment device.

また、本例の逆浸透膜処理装置を直列に接続する場合、第１例と同様に、一方の逆浸透膜処理装置のベッセル１に設けられている被処理液供給口部１２と他方の逆浸透膜処理装置のベッセル１に設けられている濃縮液排出口部１４を向かい合わせにして複数の逆浸透膜処理装置を平行に配置し、そして、向かい合わせとなっている被処理液供給口部１２と濃縮液排出口部１４を接続器具を用いて直結或いは短い接続用配管を使って接続することができる（図示省略）。 When the reverse osmosis membrane treatment apparatus of this example is connected in series, as in the first example, the liquid supply port 12 to be treated provided in the vessel 1 of one reverse osmosis membrane treatment apparatus and the reverse of the other A plurality of reverse osmosis membrane treatment devices are arranged in parallel with the concentrate discharge port portion 14 provided in the vessel 1 of the osmosis membrane treatment device facing each other, and the liquid supply port portion to be treated facing each other 12 and the concentrate outlet 14 can be connected directly using a connection tool or using a short connection pipe (not shown).

また、上記の第１例と第２例の逆浸透膜処理装置では、それぞれ直列に接続すると、いずれも処理液導出口部１３が隣り合う逆浸透膜処理装置のベッセル１において、一端側と他端側に交互に開口するが、第１例と第２例の逆浸透膜処理装置を併用し、交互に平行に配置して、一方の逆浸透膜処理装置のベッセル１に設けられている被処理液供給口部１２と他方の逆浸透膜処理装置のベッセル１に設けられている濃縮液排出口部１４を接続すれば、各逆浸透膜処理装置のベッセル１に設けられている処理液導出口部１３をベッセル１の一端側と他端側の何れか一方に統一して開口させることができ（図５参照）、各逆浸透膜処理装置の処理液導出口部１３から導出される処理液を収集する収集配管の構成がが簡単になる。 In the reverse osmosis membrane treatment apparatuses of the first example and the second example described above, when connected in series with each other, in the vessel 1 of the reverse osmosis membrane treatment apparatus in which the treatment liquid outlet 13 is adjacent, one end side and the other Although the openings are alternately opened on the end side, the reverse osmosis membrane treatment apparatuses of the first example and the second example are used in combination, and are alternately arranged in parallel, and are provided in the vessel 1 of one reverse osmosis membrane treatment apparatus. By connecting the treatment liquid supply port 12 and the concentrate discharge port 14 provided in the vessel 1 of the other reverse osmosis membrane treatment apparatus, the treatment liquid guide provided in the vessel 1 of each reverse osmosis membrane treatment apparatus. The outlet portion 13 can be opened uniformly on either one end side or the other end side of the vessel 1 (see FIG. 5), and the treatment derived from the treatment liquid outlet port portion 13 of each reverse osmosis membrane treatment apparatus. The configuration of the collection pipe for collecting the liquid becomes simple.

次に、本発明に係る逆浸透膜処理装置の実施の形態の第３例を説明する。
本例は、第１例及び第２例と基本構成を同じくするものであり、第１例を示す図１及び第２例を示す図４を援用して、第１例及び第２例との相違する構成を説明し、本例の図示は省略する。 Next, a third example of the embodiment of the reverse osmosis membrane treatment apparatus according to the present invention will be described.
This example has the same basic configuration as the first example and the second example, and with reference to FIG. 1 showing the first example and FIG. 4 showing the second example, the first example and the second example A different configuration will be described, and illustration of this example will be omitted.

本例と第１例及び第２例との相違は、次の通りである。第１例では、筒状体３の両端側に取り付けられている閉鎖蓋４，５のうち、濃縮液排出口部１４が設けられている閉鎖蓋５に処理液導出口部１３が設けられており、また、第２例では、閉鎖蓋４，５のうち、被処理液供給口部１２が設けられている閉鎖蓋５に処理液導出口部１３が設けられているが、本例では、いずれの閉鎖蓋４，５にもそれぞれ処理液導出口部１３が設けられている。

The difference between this example and the first and second examples is as follows. In the first example, the processing liquid outlet port portion 13 is provided in the closing lid 5 provided with the concentrate discharge port portion 14 among the closing lids 4 and 5 attached to both ends of the cylindrical body 3. cage, also in the second example, of the closing lid 4, 5, although the treatment liquid outlet 13 in the closed Kusarifuta 5 that have the liquid to be treated supply port 12 is provided is provided, in this example Each of the closing lids 4 and 5 is provided with a processing liquid outlet 13.

先ず、本例を第１例を示す図１により説明すると、閉鎖蓋４に処理液導出口部１３を設け、逆浸透膜１５の軸心部に配置された処理液収集管１６の閉鎖蓋４側の開口部に、封止キャップ２２に代えて処理液収集管１６と閉鎖蓋４に設けた処理液導出口部１３を接続するアダプタ２３を装着する。 First, this example will be described with reference to FIG. 1 showing the first example. The closure lid 4 is provided with a treatment liquid outlet 13, and the closure lid 4 of the treatment liquid collection tube 16 disposed at the axial center of the reverse osmosis membrane 15. In place of the sealing cap 22, an adapter 23 that connects the processing liquid collection tube 16 and the processing liquid outlet 13 provided in the closing lid 4 is attached to the opening on the side.

この構成は、閉鎖蓋５を閉鎖蓋４として使用し、逆浸透膜１５の軸心部に配置された処理液収集管１６の閉鎖蓋４側の開口部に、封止キャップ２２に代えて処理液収集管１６と処理液導出口部１３を接続するアダプタ２３を装着することにより実現できる。 In this configuration, the closure lid 5 is used as the closure lid 4, and the treatment liquid collection tube 16 disposed at the axial center portion of the reverse osmosis membrane 15 is treated in place of the sealing cap 22 in the opening on the closure lid 4 side. This can be realized by attaching an adapter 23 that connects the liquid collection pipe 16 and the processing liquid outlet 13.

次に、本例を第２例を示す図４により説明すると、閉鎖蓋５に処理液導出口部１３を設け、逆浸透膜１５の軸心部に配置された処理液収集管１６の閉鎖蓋５側の開口部に、封止キャップ２２に代えて処理液収集管１６と閉鎖蓋５に設けた処理液導出口部１３を接続するアダプタ２３を装着する。 Next, this example will be described with reference to FIG. 4 showing a second example. The closure lid 5 is provided with a treatment liquid outlet 13, and the closure lid of the treatment liquid collection tube 16 disposed at the axial center of the reverse osmosis membrane 15. In place of the sealing cap 22, an adapter 23 that connects the processing liquid collection tube 16 and the processing liquid outlet 13 provided in the closing lid 5 is attached to the opening on the side 5.

この構成は、閉鎖蓋４を閉鎖蓋５として使用し、逆浸透膜１５の軸心部に配置された処理液収集管１６の閉鎖蓋５側の開口部に、封止キャップ２２に代えて処理液収集管１６と処理液導出口部１３を接続するアダプタ２３を装着することにより実現できる。 In this configuration, the closure lid 4 is used as the closure lid 5, and a treatment liquid collecting tube 16 disposed at the axial center of the reverse osmosis membrane 15 is treated in place of the sealing cap 22 in the opening on the closure lid 5 side. This can be realized by attaching an adapter 23 that connects the liquid collection pipe 16 and the processing liquid outlet 13.

このように、筒状体３の両端側に取り付けられている閉鎖蓋４，５のいずれにもそれぞれ処理液導出口部１３が設けられている本例の逆浸透膜処理装置は、閉鎖蓋４，５に設けられている処理液導出口部１３のうちの一方の処理液導出口部１３を、処理液の水質検査するためのサンプリング取り出し口として利用することができるものである。 As described above, the reverse osmosis membrane treatment apparatus of this example in which the treatment liquid outlet 13 is provided in each of the closure lids 4 and 5 attached to both ends of the cylindrical body 3 includes the closure lid 4. , 5 can be used as a sampling outlet for inspecting the water quality of the processing liquid.

本例のその他の構成は、第１例及び第２例と全く同一であり、本例が第１例の閉鎖蓋４に処理液導出口部１３を設けた逆浸透膜処理装置であるときは、第１例と同様の作用効果を生じ、本例が第２例の閉鎖蓋５に処理液導出口部１３を設けた逆浸透膜処理装置であるときは、第２例と同様の作用効果を生じるので、第１例及び第２例の説明を援用してその説明を省略する。 Other configurations of this example are exactly the same as those of the first example and the second example, and when this example is a reverse osmosis membrane processing apparatus provided with the treatment liquid outlet 13 in the closing lid 4 of the first example. When the reverse osmosis membrane treatment apparatus is provided with the treatment liquid outlet 13 in the closing lid 5 of the second example, the same effect as the second example is produced. Therefore, the description of the first example and the second example is incorporated and the description is omitted.

本発明に係る逆浸透膜処理装置の実施の形態の第１例を示す縦断面図。The longitudinal cross-sectional view which shows the 1st example of embodiment of the reverse osmosis membrane processing apparatus which concerns on this invention. 本例の逆浸透膜処理装置におけるベッセルから逆浸透膜エレメントを引き出す過程を示す説明図。Explanatory drawing which shows the process in which a reverse osmosis membrane element is pulled out from the vessel in the reverse osmosis membrane processing apparatus of this example. 本例の逆浸透膜処理装置を接続した状態を示す説明図。Explanatory drawing which shows the state which connected the reverse osmosis membrane processing apparatus of this example. 本発明に係る逆浸透膜処理装置の実施の形態の第２例を示す縦断面図。The longitudinal cross-sectional view which shows the 2nd example of embodiment of the reverse osmosis membrane processing apparatus concerning this invention. 第１例と第２例の逆浸透膜処理装置を交互に接続した状態を示す説明図。Explanatory drawing which shows the state which connected the reverse osmosis membrane processing apparatus of the 1st example and the 2nd example alternately. 従来の逆浸透膜処理装置のブラインシールリングによるシール構造を示す一部切り欠き斜視図。The partially cutaway perspective view showing the seal structure by the brine seal ring of the conventional reverse osmosis membrane processing apparatus.

Explanation of symbols

１ベッセル
２逆浸透膜エレメント
３筒状体
４，５閉鎖蓋
６，７取付部位
８，９椀状部位
１２被処理液供給口部
１３処理液導出口部
１４濃縮液排出口部
２１ブラインシールリング
２４シール面 DESCRIPTION OF SYMBOLS 1 Vessel 2 Reverse osmosis membrane element 3 Cylindrical body 4,5 Closure lid 6,7 Attachment part 8,9 Gutter-like part 12 Processed liquid supply port part 13 Process liquid outlet part 14 Concentrated liquid outlet part 21 Brine seal ring 24 Seal surface

Claims

A cylindrical body having a closure lid detachably attached to both ends has a liquid supply port on one end, a concentrate outlet on the other end, and one end of the cylindrical body. In a reverse osmosis membrane treatment apparatus that accommodates a reverse osmosis membrane element inside a vessel having a treatment liquid outlet port,
The reverse osmosis membrane element is provided with ring-shaped pressing ends on both ends, and annular grooves are formed on the outer periphery of both pressing ends, respectively, and the annular end of the pressing end on the liquid supply port side to be treated is formed. In the groove, an O-ring that seals between the outer peripheral surface of the holding end and the inner peripheral surface of the cylindrical body or a brine seal ring having a substantially X-shaped ring structure is mounted,
The closure lids that are attached to both ends of the cylindrical body are each formed in a substantially bowl shape, and the outer periphery of the opening end is an attachment site, and is fitted into the cylindrical body,
And the tubular body, the seal between the outer peripheral surface of the pressing end of the seal and the reverse osmosis membrane elements between the mounting portion of the closed chain lid, formed at both end portions in the peripheral surface of the tubular body Each is sealed on the same sealing surface,
Wherein on the sealing surface of the liquid to be treated supply port side, and the pressing edge portion of the reverse osmosis membrane element with the mounting portion of the closed chain cover abuts
Other than the sealing surface, the inner diameter is formed larger than the inner diameter of the sealing surface,
Further, each of the closed chains lid is adapted to be mounted to each of the sealing surface as the bowl-shaped portion protrudes into the tubular outside,
And the said to-be-processed liquid supply port part is provided in the said bowl-shaped site | part of one said closure lid, the said concentrate discharge port part is provided in the said bowl-shaped site | part of the said other closure lid, and the said cylindrical shape A reverse osmosis membrane treatment apparatus, wherein the treatment liquid outlet port portion is provided in the hook-shaped portion of one of the closure lids attached to both ends of the body.

A cylindrical body with a closure lid detachably attached to both ends has a liquid supply port on one end, a concentrate outlet on the other end, and treatments on both ends of the cylindrical body In a reverse osmosis membrane treatment apparatus that accommodates a reverse osmosis membrane element inside a vessel having a liquid outlet port,
The reverse osmosis membrane element is provided with ring-shaped pressing ends on both ends, and annular grooves are formed on the outer periphery of both pressing ends, respectively, and the annular end of the pressing end on the liquid supply port side to be treated is formed. In the groove, an O-ring that seals between the outer peripheral surface of the holding end and the inner peripheral surface of the cylindrical body or a brine seal ring having a substantially X-shaped ring structure is mounted,
The closure lids that are attached to both ends of the cylindrical body are each formed in a substantially bowl shape, and the outer periphery of the opening end is an attachment site, and is fitted into the cylindrical body,
And the tubular body, the seal between the outer peripheral surface of the pressing end of the seal and the reverse osmosis membrane elements between the mounting portion of the closed chain lid, formed at both end portions in the peripheral surface of the tubular body Each is sealed on the same sealing surface,
Wherein on the sealing surface of the liquid to be treated supply port side, and the pressing edge portion of the reverse osmosis membrane element with the mounting portion of the closed chain cover abuts
Other than the sealing surface, the inner diameter is formed larger than the inner diameter of the sealing surface,
Further, each of the closed chains lid is adapted to be mounted to each of the sealing surface as the bowl-shaped portion protrudes into the tubular outside,
And the said to-be-processed liquid supply port part is provided in the said bowl-shaped site | part of one said closure lid, the said concentrate discharge port part is provided in the said bowl-shaped site | part of the said other closure lid, and the said cylindrical shape A reverse osmosis membrane treatment apparatus, wherein the treatment liquid outlet port portion is provided in the bowl-shaped portion of both closure lids attached to both ends of the body.