JPH0532536Y2 - - Google Patents
Info
- Publication number
- JPH0532536Y2 JPH0532536Y2 JP1987161330U JP16133087U JPH0532536Y2 JP H0532536 Y2 JPH0532536 Y2 JP H0532536Y2 JP 1987161330 U JP1987161330 U JP 1987161330U JP 16133087 U JP16133087 U JP 16133087U JP H0532536 Y2 JPH0532536 Y2 JP H0532536Y2
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- ion exchange
- exchange membrane
- rubber
- rubber layer
- 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.)
- Expired - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 claims description 42
- 239000005060 rubber Substances 0.000 claims description 42
- 239000003014 ion exchange membrane Substances 0.000 claims description 40
- 239000004744 fabric Substances 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 239000012528 membrane Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 239000005062 Polybutadiene Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920002857 polybutadiene Polymers 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 229920000800 acrylic rubber Polymers 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 2
- 229920001038 ethylene copolymer Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003233 aromatic nylon Polymers 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229920005558 epichlorohydrin rubber Polymers 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Gasket Seals (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案はイオン交換膜法塩化アルカリ水溶液の
電気分解において、電槽枠とイオン交換膜とをガ
スケツトを介して交互に配列して構成される電解
槽用のシール部材としての補強布で補強したガス
ケツトの改良に関するものである。[Detailed description of the invention] [Field of industrial application] This invention is used in the electrolysis of an aqueous alkali chloride solution using an ion exchange membrane method, in which a battery case frame and an ion exchange membrane are arranged alternately through a gasket. This invention relates to an improvement of a gasket reinforced with reinforcing cloth as a sealing member for an electrolytic cell.
［従来の技術］
一般にイオン交換膜法電解槽は電槽枠とイオン
交換膜をガスケツトを介して交互に配列した後、
油圧もしくはボルト等で締付ける。イオン交換膜
はガスケツトとガスケツトの間に挟まつて締付け
られるため、ゴムのクリープと共に引伸ばされ
る。したがつてゴム層の変形が大きいとシール性
はよいが、イオン交換膜が切断され易くなり、ま
たゴム層の変形を小さくすると、イオン交換膜の
切断はないがシール性が悪くなる。かかる相反す
る要件を満足させるため種々のガスケツトが提案
されている。[Prior Art] Generally, in an ion-exchange membrane electrolytic cell, after the cell frame and the ion-exchange membrane are arranged alternately through a gasket,
Tighten with hydraulic pressure or bolts. Since the ion exchange membrane is clamped between gaskets, it is stretched as the rubber creeps. Therefore, if the deformation of the rubber layer is large, the sealing performance will be good, but the ion exchange membrane will be easily cut, and if the deformation of the rubber layer is small, the ion exchange membrane will not be cut, but the sealing performance will be poor. Various gaskets have been proposed to satisfy these conflicting requirements.
特開昭55−164088号にはゴムシートに補強布を
裏打ちし、イオン交換膜に接するゴム層の厚みと
全ゴム層の厚みを適宜規定することが提案されて
おり、上記目的を達成する方法として優れた方法
である。 JP-A No. 55-164088 proposes lining a rubber sheet with a reinforcing cloth and appropriately specifying the thickness of the rubber layer in contact with the ion exchange membrane and the thickness of the entire rubber layer, which is a method for achieving the above objective. This is an excellent method.
又、実用新案公報昭62−14130には補強布を裏
打ちしたガスケツトの改良方法として電槽枠に接
するゴム層に凹みを設けることが提案されてい
る。この方法はゴム硬度を可及的に高くして、槽
外リークの防止、イオン交換膜の切断防止、極間
距離の保持を可能ならしめている。 Further, Utility Model Publication No. 14130/1983 proposes a method of improving gaskets lined with reinforcing cloth by providing recesses in the rubber layer in contact with the battery case frame. This method makes it possible to make the rubber hardness as high as possible to prevent leakage outside the tank, prevent cutting of the ion exchange membrane, and maintain the distance between the electrodes.
しかしイオン交換膜は強度及び寸法安定性を確
保するために、補強布で補強することが一般に行
われており、このため膜の表面は凹凸している。
又エネルギー消費を下げる目的即ち膜抵抗を下げ
るために、補強布の一部にアルカリに溶解する繊
維を混織しておき、通電後この犠牲糸を溶解せし
めて開口率を上げ、膜抵抗を下げる方法（例えば
特開昭61−211344）やイオン交換膜の陽極面及
び／又は陰極面に多孔質層を結合させたり（例え
ば特公昭61−23876）、イオン交換膜に補強布を一
部が露出するように埋込む（例えば特開昭61−
281890）等イオン交換膜に種々の改良が行われて
いる。その結果膜の表面の凹凸、膜中の犠牲糸が
溶解したあとの毛管、膜表面の多孔質層等を通し
て膜とガスケツトとの間のシール性が悪くなり、
電解液或いは生成ガスが外部へ洩出或いは滲出
し、ひいては電解槽の運転が不能となるという問
題が生じている。 However, in order to ensure strength and dimensional stability, ion exchange membranes are generally reinforced with reinforcing cloth, and as a result, the surface of the membrane is uneven.
In addition, in order to reduce energy consumption, that is, to lower membrane resistance, a part of the reinforcing cloth is mixed with fibers that dissolve in alkali, and after electricity is applied, this sacrificial yarn is dissolved to increase the aperture ratio and lower membrane resistance. methods (e.g., Japanese Patent Application Laid-open No. 61-211344), bonding a porous layer to the anode and/or cathode surfaces of the ion exchange membrane (e.g., Japanese Patent Publication No. 61-23876), or exposing a portion of the reinforcing cloth to the ion exchange membrane. (For example, JP-A-61-
281890) Various improvements have been made to ion exchange membranes. As a result, the sealing performance between the membrane and gasket deteriorates through the unevenness of the membrane surface, the capillaries after the sacrificial thread in the membrane dissolves, the porous layer on the membrane surface, etc.
A problem arises in that the electrolytic solution or generated gas leaks or oozes out to the outside, making it impossible to operate the electrolytic cell.
［考案が解決しようとする問題点］
本考案は上記の事情に鑑み、電槽枠とイオン交
換膜とをガスケツトを介して交互に配列して構成
された電解槽において、イオン交換膜とガスケツ
トとの間のシール性を飛躍的に高め、可及的に低
い面圧で槽外リークを防止できるガスケツトを提
供することを目的とするものである。そして、こ
れにより危険性腐食性の高い電解液或いは生成ガ
スに対する安全を確保すると共に、安定した長期
運転を可能ならしめ、ガスケツトの取替えによる
運転休止損及び取替えに要する経費の軽減を図る
ものである。[Problems to be solved by the invention] In view of the above-mentioned circumstances, the present invention solves the problem of an ion exchange membrane and a gasket in an electrolytic cell configured by alternately arranging a battery case frame and an ion exchange membrane through a gasket. The object of the present invention is to provide a gasket that can dramatically improve the sealing performance between the tank and the tank and prevent leakage to the outside of the tank with as low a surface pressure as possible. This not only ensures safety against highly dangerous and corrosive electrolytes or generated gases, but also enables stable long-term operation and reduces the cost of outage and replacement costs due to gasket replacement. .
［問題点を解決するための手段］
本考案者らは上記の課題を解決するため補強布
で補強されたガスケツトのイオン交換膜に接する
側のゴム層の形状について種々検討した結果、ガ
スケツトのイオン交換膜に接する側のゴム層及び
電槽枠と接する側のゴム層にガスケツトの長さ方
向に平行して２本以上の凸状リブを設け、かつ該
凸状リブのセンターをガスケツトの両面ですべて
合致させることによつてイオン交換膜に何ら損傷
を与えず、イオン交換膜とガスケツトとの間のシ
ール性を飛躍的に改善できることを見出し、本考
案に至つた。[Means for Solving the Problems] In order to solve the above problems, the present inventors conducted various studies on the shape of the rubber layer on the side of the gasket reinforced with reinforcing cloth that contacts the ion exchange membrane. Two or more convex ribs are provided in parallel to the length direction of the gasket on the rubber layer on the side in contact with the exchange membrane and the rubber layer on the side in contact with the battery case frame, and the center of the convex ribs is arranged on both sides of the gasket. It was discovered that by matching all of the gaskets, the sealing performance between the ion exchange membrane and the gasket could be dramatically improved without causing any damage to the ion exchange membrane, leading to the present invention.
すなわち、本考案は電槽枠とイオン交換膜との
間に配置される電解槽用ガスケツトであつて、該
ガスケツトが補強布で補強されたゴムから構成さ
れ、かつそのイオン交換膜に接する側のゴム層及
び電槽枠に接する側のゴム層に、ガスケツトの長
さ方向に平行して２本以上の凸状リブを設けてお
り、該凸状リブのセンターがガスケツトの両面で
すべて合致しているガスケツトである。 That is, the present invention is a gasket for an electrolytic cell disposed between a cell frame and an ion exchange membrane, the gasket being made of rubber reinforced with reinforcing cloth, and having a gasket on the side in contact with the ion exchange membrane. Two or more convex ribs are provided on the rubber layer and the rubber layer on the side that contacts the battery case frame in parallel to the length direction of the gasket, and the centers of the convex ribs are aligned on both sides of the gasket. This is a gasket.
以下本考案について具体的に図面を用いて説明
するが、本考案はこれらの図面にのみ限定される
ものではない。第１図、第２図、第３図、第４図
は本考案に基づくガスケツトの断面図を示す。該
ガスケツトにおいて、１は凸状リブ２は補強布で
あり、３はイオン交換膜と接する面、４は電槽枠
と接する面５は凸状リブを示し、該ガスケツトは
補強布層t3、補強布のイオン交換膜側のゴム層
（表面ゴム層）t1、及び補強布の電槽枠側のゴム
層（裏面ゴム層）t2から成る。本考案はイオン交
換膜と接する面３及び電槽枠に接する面４の形状
を平面でなくガスケツトの長さ方向に平行に２本
以上の凸状リブ１及び５を設けるものである。 The present invention will be specifically described below with reference to the drawings, but the present invention is not limited only to these drawings. 1, 2, 3, and 4 show cross-sectional views of gaskets according to the present invention. In this gasket, 1 is a convex rib 2 is a reinforcing cloth, 3 is a surface in contact with the ion exchange membrane, 4 is a surface 5 in contact with the battery case frame is a convex rib, and the gasket has a reinforcing cloth layer t 3 , It consists of a rubber layer (surface rubber layer) t 1 on the ion exchange membrane side of the reinforcing fabric, and a rubber layer (back rubber layer) t 2 on the battery case frame side of the reinforcing fabric. In the present invention, the surface 3 in contact with the ion exchange membrane and the surface 4 in contact with the battery case frame are not flat in shape, but are provided with two or more convex ribs 1 and 5 parallel to the length direction of the gasket.
本考案においてこの凸状リブは、上記のように
複数本必要であり、１本では本考案の効果を充分
発揮できない。リブのピツチは0.5〜10mm程度が
好ましく、更に好ましくは１〜５mmである。又、
このリブは全周に亘つて連なつていることが望ま
しく、途中でリブの切れた箇所があつたり、別の
リブと重なつたりすると液やガスがリークし易く
なるので好ましくない。 In the present invention, a plurality of convex ribs are required as described above, and the effect of the present invention cannot be fully exhibited with just one rib. The pitch of the ribs is preferably about 0.5 to 10 mm, more preferably 1 to 5 mm. or,
It is desirable that the ribs be continuous all around the circumference, and if the ribs are cut in the middle or overlap with another rib, it is not preferable because liquid or gas will easily leak.
リブの形状は電槽枠に接する側が台形状で、イ
オン交換膜に接する面が第１図に示した断面の如
く三角状の他に第２図の如き四角状、第３図の如
き台形状、第４図の如き半円状等の各種の形状の
ものが適用できる。例えばリブの形状が第１図に
示した台形状及び三角状の場合、断面が凸状リブ
の畝２本以上が平行してガスケツトの全周に亘つ
て連続して連なつているような構造のガスケツト
である。 The shape of the rib is trapezoidal on the side that contacts the battery case frame, and the side that contacts the ion exchange membrane is triangular as shown in Figure 1, square as shown in Figure 2, and trapezoidal as shown in Figure 3. , various shapes such as a semicircular shape as shown in FIG. 4 can be applied. For example, when the shape of the rib is trapezoidal or triangular as shown in Fig. 1, a structure in which two or more ridges of the rib with a convex cross section are continuous in parallel over the entire circumference of the gasket is used. gasket.
リブの高さは一般的に0.1〜２mmであり、好ま
しくは0.2〜１mmである。 The height of the ribs is generally between 0.1 and 2 mm, preferably between 0.2 and 1 mm.
リブの底辺の巾は高さより広くとるのが望まし
い。底辺の巾より高さが高くなると締付けた時リ
ブが座屈を起し易くなりイオン交換膜に損傷を与
えることがある。リブの巾の具体的数値としては
0.2〜４mmが一般的である。 It is desirable that the width of the bottom of the rib be wider than the height. If the height is higher than the width of the base, the ribs are likely to buckle when tightened, which may damage the ion exchange membrane. The specific value of the width of the rib is
0.2 to 4 mm is common.
表面ゴム層の平均厚みは0.2〜0.7mm程度が好ま
しい。ゴム層全体としてはゴムの硬度にもよる
が、平均１〜４mm程度が好ましい。 The average thickness of the surface rubber layer is preferably about 0.2 to 0.7 mm. The average thickness of the rubber layer as a whole is preferably about 1 to 4 mm, although it depends on the hardness of the rubber.
また面４の凸状のリブと、イオン交換膜とが接
する面３に設けられるリブの位置は面３と面４の
リブのセンターの位置がすべて合致するように設
ける必要がある。面３と面４のリブのセンターの
位置が全て合致しない場合はリークが起こり易
い。この理由は電槽枠に接する側の凸状リブとイ
オン交換膜に接する側の凸状リブが相互に支え合
わないためシールが不完全になるものと推定して
いる。 Further, the positions of the ribs provided on the surface 3 where the convex ribs on the surface 4 and the ion exchange membrane contact each other must be provided so that the centers of the ribs on the surfaces 3 and 4 all coincide with each other. If the positions of the centers of the ribs on surfaces 3 and 4 do not all match, leaks are likely to occur. The reason for this is presumed to be that the convex ribs on the side in contact with the battery case frame and the convex ribs on the side in contact with the ion exchange membrane do not support each other, resulting in an incomplete seal.
また第１図Ａ−A′は面３と面４のリブのセン
ターの位置が合致していることを示す。本考案の
ガスケツトを使用するに当つて膜を挟んで反対側
にあるガスケツトにゴムあるいはプラチツクス製
でイオン交換膜に接する面が平面のものと組合せ
て用いることが効果的である。 Further, FIG. 1A-A' shows that the rib centers of surfaces 3 and 4 are aligned. When using the gasket of the present invention, it is effective to use it in combination with a gasket on the opposite side of the membrane that is made of rubber or plastic and has a flat surface that contacts the ion exchange membrane.
本考案のガスケツトのゴム層に用いられる材質
としては、天然ゴム、イソプレンゴム、スチレ
ン／ブタジエンゴム、ブチルゴム、ブタジエンゴ
ム、エチレン／プロピレンゴム、アクリロニトリ
ル／ブタジエンゴム、クロロプレンゴム、クロロ
スルホン化ポリエチレンゴム、ウレタンゴム、多
硫化ゴム、シリコーンゴム、フツ素ゴム、アクリ
ルゴム、エピクロルヒドリンゴム、エチレン／ア
クリルゴム等を挙げることができる。又、本考案
に利用できる補強布としては綿、羊毛、絹、麻、
レーヨン、キユプラ、アセテート、ビニロン、ナ
イロン、芳香族ナイロン（アラミド）、ポリエス
テル、アクリル、ポリエチレン、ポリプロピレ
ン、ポリ塩化ビニリデン、ポリ塩化ビニル、ポリ
テトラフロロエチレン、ポリフツ化ビニリデン、
ポリフツ化ビニル、テトラフロロエチレン／エチ
レン共重合体、テトラフロロエチレン／ヘキサフ
ロロプロピレン共重合体、テトラフロロエチレ
ン／パークロロアルコキシビニルエーテル共重合
体、クロロトリフロロエチレン／エチレン共重合
体、ポリフエニレンサルフアイド、炭素繊維、ガ
ラス繊維、金属等のヤーン又はフイラメント等を
織物にして用いる。 Materials used for the rubber layer of the gasket of the present invention include natural rubber, isoprene rubber, styrene/butadiene rubber, butyl rubber, butadiene rubber, ethylene/propylene rubber, acrylonitrile/butadiene rubber, chloroprene rubber, chlorosulfonated polyethylene rubber, and urethane rubber. Rubber, polysulfide rubber, silicone rubber, fluoro rubber, acrylic rubber, epichlorohydrin rubber, ethylene/acrylic rubber, etc. can be mentioned. In addition, reinforcing fabrics that can be used in this invention include cotton, wool, silk, linen,
Rayon, Kyupra, acetate, vinylon, nylon, aromatic nylon (aramid), polyester, acrylic, polyethylene, polypropylene, polyvinylidene chloride, polyvinyl chloride, polytetrafluoroethylene, polyvinylidene fluoride,
Polyfluorinated vinyl, tetrafluoroethylene/ethylene copolymer, tetrafluoroethylene/hexafluoropropylene copolymer, tetrafluoroethylene/perchloroalkoxy vinyl ether copolymer, chlorotrifluoroethylene/ethylene copolymer, polyphenylene sulfate Yarns or filaments of fibers, carbon fibers, glass fibers, metals, etc. are used in the form of textiles.
実施例 １
硬度Hs70度のエチレン／プロピレンゴムに補
強布としてナイロン６で補強したガスケツトを金
型で成型した。補強布はナイロン６の1100デニー
ルのモノフイラメントを30メツシユに平織したも
ので表面ゴム層の厚みが平均0.5mmとなるように
して用いた。イオン交換膜の陰極側のガスケツト
は表面ゴム層、裏面ゴム層とも平面とし、全ゴム
層の厚みを２mmとした。イオン交換膜の陽極側の
ガスケツトは表面ゴム層に２mm間隔に巾１mm高さ
0.5mmの四角状のリブを15本設け、また裏面ゴム
層には２mm間隔で、両面のリブのセンターが合う
ように、上底0.6mm、下底1.4mmの台形上のリブを
15本設け（第２図参照）、全ゴム層の厚みは平均
２mmとなるように成型した。ガスケツトの巾は30
mmとした。Example 1 A gasket made of ethylene/propylene rubber with a hardness of 70 degrees Hs and reinforced with nylon 6 as a reinforcing cloth was molded using a mold. The reinforcing cloth was made by plain weaving 1100 denier monofilament of nylon 6 into 30 meshes, and the thickness of the surface rubber layer was 0.5 mm on average. The gasket on the cathode side of the ion exchange membrane had a flat surface rubber layer and a back rubber layer, and the thickness of the entire rubber layer was 2 mm. Gaskets on the anode side of the ion exchange membrane are placed on the surface rubber layer at 2mm intervals and 1mm in width and height.
There are 15 square ribs of 0.5 mm, and trapezoidal ribs of 0.6 mm on the top and 1.4 mm on the bottom are placed on the back rubber layer at 2 mm intervals so that the centers of the ribs on both sides match.
15 rubber layers were provided (see Figure 2), and the total thickness of the rubber layer was molded to be 2 mm on average. The width of the gasket is 30
mm.
これらのガスケツトを１ｍ×１ｍの大型フイル
タープレス型複極式電槽に取付け、150ミクロン
30メツシユのポリテトラフロロエチレン繊維で裏
打ちされたフツ素系陽イオン交換膜をはさみ油圧
で面圧が10Kg／cm2になるように締付けた。陽極室
に3.5Nの塩水、陰極室に30％の苛性ソーダ液を
槽内圧１Kg／cm2で通液しながら90℃で運転した。
６ケ月間継続運転したが、この間電解液及び生成
ガスの外部への洩出及び滲出はなかつた。 Attach these gaskets to a large filter press type bipolar battery case measuring 1m x 1m.
A fluorine-based cation exchange membrane lined with 30 mesh polytetrafluoroethylene fibers was sandwiched and tightened using hydraulic pressure so that the surface pressure was 10 kg/cm 2 . The reactor was operated at 90° C. while flowing 3.5N salt water into the anode chamber and 30% caustic soda solution into the cathode chamber at an internal pressure of 1 Kg/cm 2 .
It was operated continuously for 6 months, but during this period, there was no leakage or oozing of the electrolyte or generated gas to the outside.
比較例としてイオン交換膜の陽極側のガスケツ
トの表面ゴム層及び裏面ゴム層のリブを除去し平
面としたガスケツトを同時に装着したが、スター
ト直後から塩水の液洩があつた。 As a comparative example, a flat gasket was installed by removing the ribs on the front and back rubber layers of the gasket on the anode side of the ion exchange membrane, but salt water leaked immediately after starting.
以上の如く電槽枠とイオン交換膜とをガスケツ
トを介して交互に配列し、油圧またはボルトで締
付けた電解槽に於いて、補強布で補強されたガス
ケツトのイオン交換膜に接する側のゴム層及び電
槽枠に接する側のゴム層にガスケツトの長さ方向
に平行して２本以上凸状リブを設けることによ
り、種々のイオン交換膜とのシール性に優れたガ
スケツトを提供できる。 As described above, in an electrolytic cell in which the battery case frame and the ion exchange membrane are arranged alternately through the gasket and are tightened by hydraulic pressure or bolts, the rubber layer on the side of the gasket that is in contact with the ion exchange membrane is reinforced with reinforcing cloth. By providing two or more convex ribs in parallel in the length direction of the gasket on the rubber layer on the side that contacts the battery case frame, it is possible to provide a gasket with excellent sealing properties with various ion exchange membranes.
［考案の効果］
以上の説明から明らかなように、本考案の構成
によるガスケツトを用いることによりイオン交換
膜とのシール性が向上した結果、低い面圧での締
付けで足りるので、イオン交換膜の切断が防止さ
れ電解液や生成ガスの漏洩がなくなり、イオン交
換膜法電解槽を安全に安定して長期間運転でき、
休止損及びガスケツトの取替えに要する経費を大
巾に軽減することができる。[Effects of the invention] As is clear from the above explanation, the sealing performance with the ion exchange membrane is improved by using the gasket configured according to the invention, and as a result, tightening with a low surface pressure is sufficient, so the sealing performance of the ion exchange membrane is improved. This prevents disconnection, eliminates leakage of electrolyte and generated gas, and allows ion exchange membrane electrolyzers to operate safely and stably for long periods of time.
It is possible to greatly reduce downtime losses and expenses required for gasket replacement.
第１〜４図は本考案のガスケツトの断面図。
１……凸状リブ、２……補強布、３……イオン
交換膜と接する面、４……電解枠と接する面。
1 to 4 are cross-sectional views of the gasket of the present invention. 1... Convex rib, 2... Reinforcing cloth, 3... Surface in contact with the ion exchange membrane, 4... Surface in contact with the electrolytic frame.
Claims (1)
槽用ガスケツトであつて、該ガスケツトが補強布
で補強されたゴムから構成され、かつそのイオン
交換膜に接する側のゴム層及び電解枠と接する側
のゴム層にガスケツトの長さ方向に平行して２本
以上の凸状リブを設けており、該凸状リブのセン
ターがガスケツトの両面ですべて合致しているこ
とを特徴とするガスケツト。 A gasket for an electrolytic cell placed between a battery case frame and an ion exchange membrane, the gasket being made of rubber reinforced with reinforcing cloth, and comprising a rubber layer on the side in contact with the ion exchange membrane and the electrolytic frame. A gasket characterized in that two or more convex ribs are provided on the rubber layer on the side in contact with the gasket in parallel to the length direction of the gasket, and the centers of the convex ribs are all aligned on both sides of the gasket. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161330U JPH0532536Y2 (en) | 1987-10-23 | 1987-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161330U JPH0532536Y2 (en) | 1987-10-23 | 1987-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0165859U JPH0165859U (en) | 1989-04-27 |
| JPH0532536Y2 true JPH0532536Y2 (en) | 1993-08-19 |
Family
ID=31444168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987161330U Expired - Lifetime JPH0532536Y2 (en) | 1987-10-23 | 1987-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0532536Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156290A (en) * | 1984-08-28 | 1986-03-20 | Showa Denko Kk | Method for attaching ion exchange membrane |
| JPS6214130U (en) * | 1985-07-11 | 1987-01-28 |
-
1987
- 1987-10-23 JP JP1987161330U patent/JPH0532536Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6156290A (en) * | 1984-08-28 | 1986-03-20 | Showa Denko Kk | Method for attaching ion exchange membrane |
| JPS6214130U (en) * | 1985-07-11 | 1987-01-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0165859U (en) | 1989-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5384019A (en) | Membrane reinforced with modified leno weave fabric | |
| US4915803A (en) | Combination seal and frame cover member for a filter press type electrolytic cell | |
| US4056458A (en) | Monopolar membrane electrolytic cell | |
| US4721555A (en) | Electrolysis cell seal means | |
| US4643818A (en) | Multi-cell electrolyzer | |
| JP6031189B2 (en) | Gasket and electrolytic cell | |
| US4892632A (en) | Combination seal member and membrane holder for an electrolytic cell | |
| KR840008173A (en) | Reinforcement film, electrochemical electrolyzer and electrolysis process | |
| US4898653A (en) | Combination electrolysis cell seal member and membrane tentering means | |
| EA019177B1 (en) | Elementary electrolysis cell and electrolyser based thereon | |
| CA1269638A (en) | Electrolytic cell and gasket for electrolytic cell | |
| JP7215839B2 (en) | Gasket for electrolytic cell and electrolytic cell | |
| US4469577A (en) | Membrane electrolysis cell | |
| JPH0532536Y2 (en) | ||
| CA1287599C (en) | Membrane unit for electrolytic cell | |
| JPH0344489A (en) | Filter press-type gasket for vessel | |
| JPH07233267A (en) | Fabric-reinforced film | |
| JP5840549B2 (en) | Cathode side gasket for electrolytic cell and electrolytic cell | |
| JPS6260475B2 (en) | ||
| JPS6038472B2 (en) | Ion exchange membrane type electrolyzer | |
| CN1013453B (en) | Electrolyser of the filter-press type | |
| JP2005533176A (en) | Cathode finger structure of chloroalkali membrane electrolytic cell | |
| JPS621236Y2 (en) | ||
| JP7071595B2 (en) | Electrolytic cell gasket and electrolytic cell using it | |
| JPH06330369A (en) | Electrolytic cell for alkali metal chloride aqueous solution |