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JP4098061B2 - Emergency unloading device for fluid handling equipment - Google Patents
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JP4098061B2 - Emergency unloading device for fluid handling equipment - Google Patents

Emergency unloading device for fluid handling equipment Download PDF

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JP4098061B2
JP4098061B2 JP2002314150A JP2002314150A JP4098061B2 JP 4098061 B2 JP4098061 B2 JP 4098061B2 JP 2002314150 A JP2002314150 A JP 2002314150A JP 2002314150 A JP2002314150 A JP 2002314150A JP 4098061 B2 JP4098061 B2 JP 4098061B2
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fluid
emergency
fluid handling
clamp
arm
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JP2004149131A (en
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弘 相原
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ニイガタ・ローディング・システムズ株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、液化石油ガス等の流体を貯蔵する流体貯蔵部とタンクローリ、タンカー等の流体輸送部との間で前記流体を積み卸しするための流体荷役装置の緊急切離し装置に関するものである。
【0002】
【従来の技術】
一般に、前記流体荷役装置は、岸壁等に固定、設置されて流体貯蔵部に接続された立上り管と、該立上り管に水平旋回および垂直旋回可能に接続されたインボードアームと、該インボードアームの先端に垂直旋回可能に接続されたアウトボードアームと、一端側が前記アウトボードアームの先端に接続され、他端側がタンカー等の流体輸送部に接続された緊急切離し装置とを備え、前記流体貯蔵部と流体輸送部との間で液化石油等の流体を積み卸している際に、岸壁等からタンカー等が安全な許容範囲を離れることにより、前記インボードアームとアウトボードアームとの間の角度が限界角度を超えて開いた緊急時に、前記緊急切離し装置が作動して流体荷役装置とタンカー等との接続を切り離すようになっている。
【0003】
従来、前記緊急切離し装置として、リンク機構で同時に閉鎖作動される開閉弁を有し、接合面を互いに突き合わせて切離し可能に接合される一対の分割体と、該一対の分割体を互いに分離可能に連結するクランプ部材および該クランプ部材による前記連結を解除するシリンダ装置からなる切り離しカプラーと、前記アウトボードアームに固定され前記シリンダ装置を動作させる流体を供給する流体圧供給シリンダ装置と、該流体圧供給シリンダ装置を流体圧供給不能状態に固定する第1シヤーピンと、前記リンク機構を前記開閉弁の開状態に固定する第2シヤーピンと、一端を前記インボードアームに結合され、他端を前記第1、第2シヤーピンにそれぞれ連結された第1、第2索状部材とを備え、前記インボードアームと前記アウトボードアームとの間の角度が限界角度を超えた緊急時に、前記第1、第2索状部材の緊張によって前記第2シヤーピンが切断されて前記リンク機構により前記開閉弁が閉作動された後に、前記第1シヤーピンが切断されて前記流体圧供給シリンダ装置から前記シリンダ装置に油圧が供給されて前記クランプ部材による前記一対の分割体の連結を解除するようにしたものが知られている(例えば、特許文献1参照)。
【0004】
【特許文献1】
特公平1−44600号公報
【0005】
【発明が解決しようとする課題】
しかしながら、従来の前記流体荷役装置の緊急切離し装置は、分離される一対の分割体の開閉弁を閉鎖作動させるリンク機構を設けたり、クランプ部材による一対の分割体の連結を解除するシリンダ装置や該シリンダ装置に流体を供給する流体圧供給シリンダ装置を設けているので、その分だけ装置の構成が複雑となり、製作コストが高くなる問題があると共に、緊急時に、前記リンク機構を作動させたり、前記油圧供給シリンダ装置を作動させるために前記索状部材の緊張によって第1、第2シヤーピンを切断する必要があるので、該第1、第2シヤーピンを切断するための大きな切断力が索状部材を介してインボードアームに作用し、このために、前記インボードアーム等の流体荷役装置の配管サイズを切離し装置の無いものと比較して大きくする必要があり、また、第1、第2シヤーピンを切断の都度交換する必要があり、保守に手間がかかる問題がある。
【0006】
本発明は、前記事情に鑑みてなされたもので、緊急切離し装置の無いものと同一の配管サイズの流体荷役装置に容易に適用することができ、構成が簡単で、保守もし易く、製作コストを安価にすることができる流体荷役装置の緊急切離し装置を提供することを目的とする。
【0007】
【課題を解決するための手段】
本発明は、前記課題を解決するために、以下の点を特徴としている。
すなわち、請求項1に係る流体荷役装置の緊急切離し装置は、流体貯蔵部に接続された固定管に水平旋回および垂直旋回可能に接続されたインボードアームと、該インボードアームの先端に垂直旋回可能に接続されたアウトボードアームと、一端側が前記アウトボードアームの先端に接続され、他端側が流体輸送部に接続された緊急切離し装置とを設けた流体荷役装置において、前記緊急切離し装置が、接合時にバルブボディーの流体流路の開口部を開き、切離し時に前記流体流路を閉じる弁部をバルブボディーの内部に設け、前記バルブボディーの開口部側の接合面を互いに突き合わせて切離し可能に接合される一対の開閉バルブと、ヒンジで連結された複数のクランプ部材によって各バルブボディーの外周部を把持して前記接合された一対の開閉バルブを互いに分離可能に連結するクランプ手段と、前記クランプ部材の連結端部の連結穴に対する連結軸の挿入および引き抜きにより、前記一対の開閉バルブの連結を維持および解除するロック手段と、一端を前記インボードアームに固定され、他端を前記ロック手段の連結軸に連結された索状部材によって、前記インボードアームと前記アウトボードアームとの間の角度が限界角度を超えた緊急時に、前記ロック手段の連結軸を牽引して前記クランプ部材の連結穴から引き抜いて前記クランプ部材の連結端部を解放させることにより、前記一対の開閉バルブの連結の解除動作を行わせる操作手段とを備えていることを特徴としている。
【0008】
また、請求項2に係る流体荷役装置の緊急切離し装置は、請求項1に記載の緊急切離し装置において、前記ロック手段の連結軸が、常時、前記クランプ部材の連結端部の連結穴に挿入される方向に付勢バネで付勢されていることを特徴としている。
【0009】
また、請求項3に係る流体荷役装置の緊急切離し装置は、請求項1または2に記載の緊急切離し装置において、前記操作手段の索状部材が、前記アウトボードアームに設けた案内部材によって、前記ロック手段の連結軸との連結側を該連結軸の軸方向に向けて案内、支持されていることを特徴としている。
【0010】
また、請求項4に係る流体荷役装置の緊急切離し装置は、請求項1〜3のいずれかに記載の緊急切離し装置において、前記操作手段の索状部材には、その長さを調節する長さ調整手段が設けられていることを特徴としている。
【0011】
【発明の実施の形態】
以下、本発明の一実施の形態に係る流体荷役装置の緊急切離し装置について図1〜図5を参照して説明する。
図1、図2において、1は液化石油ガス等の流体を貯蔵する給油ステーション(流体貯蔵部)からタンクローリ(流体輸送部)のタンクに前記流体を積み込むための流体荷役装置である。該流体荷役装置1は、給油ステーション(図示せず)に固定して立設され、前記給油ステーションの地下タンク等(流体貯蔵タンク)にポンプ等を介して連絡された立上り管(固定管)2と、該立上り管2の上端に、基端部(図2で右端部)を水平旋回および垂直旋回可能なスイベルジョイント3を介して接続されたインボードアーム4と、該インボードアーム4の先端部に垂直旋回可能なスイベルジョイント5を介して接続されたアウトボードアーム6と、該アウトボードアーム6の下端にフランジ継手を介して接続された緊急切離し装置7と、該緊急切離し装置7の下端に垂直旋回可能なスイベルジョイント8を介して接続されたドロップパイプ9と、該ドロップパイプ9の下端にストップバルブ10を介して接続されたコネクター11と、前記スイベルジョイント3の垂直旋回部の固定側3aと前記インボードアーム4との間に設けたバランスユニット12とを備えている。
【0012】
前記バランスユニット12は、前記インボードアーム4の側部に固定したバネ箱13と、前記スイベルジョイント3の垂直旋回部の固定側3aに固着したブラケット14に上下(垂直)方向に旋回可能にピン連結されたレバー15と、該レバー15に基端を固定されて先端側を前記バネ箱13内に挿入され、該バネ箱13内に装着されているバネと係合されているチェーン16とを備え、前記インボードアーム4がスイベルジョイント3を介して上下(垂直)方向に旋回した場合に、インボードアーム3の旋回モーメントの変化を前記バネ箱13内のバネで平衡させるようになっている。
前記レバー15にはボルト17が上下方向に螺合されており、該ボルト17の先端を前記ブラケット14に当接させることによって、前記インボードアーム3の下方への旋回角度の限界位置を調節できるようになっている。
【0013】
前記緊急切離し装置7は、図3に示すように、バルブボディー18a,18bの一端側の開口部19a,19aに流体の流路を開閉する弁部20a,20aをそれぞれ有し、前記開口部19a,19a側の接合面21,21を互いに突き合わせて接合される一対の開閉バルブ22a,22bと、突き合わせられた前記開閉バルブ22a,22bを互いに分離可能に連結するクランプ手段23と、該クランプ手段23による前記開閉バルブ22a,22bの連結を維持および解除するロック手段24と、該ロック手段24を操作して前記開閉バルブ22a,22bの連結の解除動作を行わせる操作手段25とを備えている。
【0014】
前記一方の開閉バルブ22aのバルブボディー18aは、下半部(一端側半部)が大径円筒とされ上半部(他端側半部)が小径円筒とされた胴部26を有し、該胴部26の下端(一端)の外周に、外周側が薄肉となるように前記接合面21aと反対側の背面27aにテーパを形成したフランジ27が設けられ、上端(他端)の外周に接続フランジ28が設けられ、該接続フランジ28が前記アウトボードアーム6の下端のフランジ6aにボルト29a、ナット29bで連結されている。また、前記他方の開閉バルブ22bのバルブボディー18bは、前記一方の開閉バルブ22aのバルブボディー18aの接続フランジ28を省略すると共に、前記一端側の開口部19aをバルブボディー18bの上端(一端)に嵌合して固定したリング29に形成した点を除いて、前記バルブボディー18aと略同様に形成され、バルブボディー18aに対して上下の位置関係を反転した状態で前記接合面21a,21aを突き合わせて接合されるようになっている。なお、バルブボディー18bの下端(他端)は前記スイベルジョイント8に固定されている。
【0015】
前記各開閉バルブ22a,22bの弁部20a,20aは、同様に形成され、前記バルブボディー18a,18bの小径円筒部内に軸方向に摺動自在に挿入され、前記開口部19a側の端部を閉鎖部材30で閉鎖された円筒部材31と、前記閉鎖部材30の開口部19a側に装着されたパッキン32と、該パッキン32を挟着するようにして前記閉鎖部材30に螺合して固定されたスプール33とを備えている。前記円筒部材31の閉鎖部材30と反対側の大径穴31aの内部に装着され、大径穴31aの段部31bと前記バルブボディー18a,18bの内部に装着して止め輪34aで固定したリング34b、または前記バルブボディー18bの内側段部31cとに両端を当接させた圧縮バネ35によって、前記弁部20aは、常時前記開口部19a側に付勢されており、前記開閉バルブ22a,22bが互いに接合面21,21から分離されたとき、前記パッキン32が前記開口部19aの内側に形成した弁座36に着座して開口部19aを閉じ、開閉バルブ22a,22bが接合面21,21で接合されたとき、前記閉鎖部材33の軸部33a,33a同士が当接することにより、圧縮バネ35が圧縮されて、前記パッキン35が弁座36から離れて前記開口部19aが開放され、これにより、前記開閉バルブ22a,22b内の流体の流路e,eが開閉されるようになっている。なお、前記円筒部材31の閉鎖部材30側の周囲には、周方向に間隔をあけて1つまたは複数の流体通路31aが周壁を貫通して設けられている。
【0016】
前記クランプ手段23は、図5に示すように、前記開閉バルブ22a,22bのバルブボディー18a,18bのフランジ27,27の半径より僅かに大きな内半径を有する一対の円弧状のクランプ部材37,37と、該クランプ部材37,37の内側にそれらの周方向に所定間隔をあけて一体に結合した複数個(図の例では各2個)の円弧状のクランプ爪38と、前記クランプ部材37,37の一端側に設けられてそれらの一端部を相互にヒンジ連結するヒンジ機構(ヒンジ)39と、前記クランプ部材37,37の他端部(連結端部)側に固定して設けられて該他端部同士を相互に連結するための連結部材40とを備えている。
前記クランプ爪38には、前記開閉バルブ22a,22bのバルブボディー18a,18bの接続フランジ27,27に嵌合する横断面がV字状で、クランプ部材37の周方向に沿う円弧状溝38a(図3参照)が形成されている。
【0017】
前記ヒンジ機構39は、前記各クランプ部材37,37の一端部にそれらの略半径方向の外側へ突き出して図3で上下に間隔をあけて固定した一対の支持片37a,37aに、クランプ部材37の中心軸方向に沿う軸穴37b,37bを設け、該軸穴37b,37bに跨ってヒンジピン41,41を挿入して軸回りに回動可能に支持させ、各ヒンジピン41,41の直径方向に形成した互いに反対方向のねじ穴41a,41bに、中央に六角頭42aを有する調節ボルト42の中央を境にして互いに反対方向の雄ねじ部42a,42bを螺合させて、調節ボルト42を回転させることにより、前記ヒンジピン41,41間の距離が調節できるようになっている。
前記連結部材40は、一方のクランプ部材37の他端部に略半径方向の外側へ突き出して図3で上下に間隔をあけて固定した一対の連結片(雌型連結片)43aと、他方のクランプ部材37の他端部に力半径方向の外側へ突き出した固定しされ、前記一対の連結片43a,43aの間に挿入される1つの連結片(雄型連結片)43bとを備え、各連結片43a,43bには、後述の連結軸48が挿入される同径の挿通穴43c,43cが前記クランプ部材37の中心軸方向にあけられている。
【0018】
前記ロック手段24は、図3に示すように、前記アウトボードアーム6のフランジ6aに前記開閉バルブ22aのバルブボディー18aを固定するボルト29aによりカラー44を介して前記フランジ6aの上面に固定されたホルダー45と、上方部をホルダー45にあけた案内穴45aとホルダー45の上面に固定した円筒状のカラー46の軸穴46aに嵌合されると共に、下方部を前記一方のバルブボディー18aの側部に固定した支持板47の案内穴47aに嵌合されて、開閉バルブ22a,22bの軸方向に移動自在とした連結軸48と、前記ホルダー45の下面に固定された円筒状部材49内に収納されて、両端を前記ホルダー45と連結軸48の下部に設けたフランジ48aとに当接され、該フランジ48aを介して前記連結軸45を下方へ付勢する圧縮バネ(付勢バネ)50と、前記連結軸48の上端に螺合したアイナット51とを備えている。
【0019】
前記連結軸48の下端部は、前記開閉バルブ22a,22bのバルブボディー18a,18bが接合面21,21で接合され、バルブボディー18a,18bのフランジ27、27の外側に前記クランプ部材37,37が装着されて、クランプ爪38の前記円弧状溝38aを嵌合させた状態(クランプ状態)において、前記クランプ部材37,37の連結片43a,43bの軸心を一致させた挿通穴43c、43cに嵌入され、前記圧縮バネ50の付勢力により、その嵌入状態が維持されるようになっている。
なお、前記連結軸48の下方への移動は前記フランジ48aの下面が前記支持板47の上面に当接して制限され、前記挿通穴43c,43cに挿通されたときの連結軸48の下端は連結片40aの下面に一致されている。また、前記連結軸48の上方への移動は前記フランジ48aの上面が前記円筒状部材49の下端に当接して制限され、該制限位置まで移動する連結軸48の移動距離は、該連結軸48の下端が、前記クランプ部材の連結片40aの挿通穴43cから脱出して上方の連結片40aの上端面から十分に離れ、かつ前記支持板47の案内穴47aから離脱しない距離となっている。
【0020】
前記操作手段25は、前記ロック手段24の連結軸48のアイナット51に一端を連結され、他端をターンバックル(長さ調整手段)52と接続金具53aを介して前記インボードアーム4の側部に固定した取付片53に連結されたワイヤーケーブル(索状部材)54を備えている。前記ワイヤーケーブル54は、中間部分を前記アウトボードアーム6の側部に固定した案内リング55の中心穴を通されており、弛んだ際に縺れることがなく、かつ緊張した際に前記連結軸48との連結側が該連結軸48の軸方向に向けて正しく案内されるようになっている。そして、前記クランプ部材37,37の挿通穴43c、43c、支持板47の案内穴47a、ホルダー45とカラー46の案内穴45a,46a、前記案内リング55の中心穴および前記接続金具53の中心が、1つの鉛直な(図1で紙面に垂直な)平面内に位置するように設定されている。また、前記ワイヤーケーブル54は、前記インボードアーム4とアウトボードアーム6との間の内角αが所定の制限角度を超えたとき、緊張して、前記圧縮バネ50の付勢力に抗して前記連結軸48を前記クランプ部材37,37の挿通穴43cから完全に引き抜かれるように、前記ターンバックル52によって必要な長さに調節されて設定されている。前記案内リング55に代えて滑車等を用いることができる。
【0021】
次に、前記実施の形態に係る流体荷役装置の緊急切離し装置7の作用について説明する。
常態では、前記流体荷役装置1のアウトボードアーム6の先端に接続された緊急切離し装置7は、一対の開閉バルブ22a,22bが接合面21,21同士を突き合わせて、接続フランジ27,27をクランプ手段23におけるクランプ部材37のクランプ爪38で締め付けられてクランプ状態とされ、ロック手段24の連結軸48がクランプ手段23の連結部材40の連結片43a,43bの挿通穴43c,43cに挿入されてクランプ部材37,37が解放されないようにクランプ手段23が施錠された状態となっている。
この常態で、前記流体貯蔵部からタンクローリに液化石油ガスを積み込む場合には、給油ステーションの所定位置に停止されたタンクローリのタンクに設けられている雌型のコネクターに、流体荷役装置1のアウトボードアーム6の先端に設けられている雄型のコネクター11を接続した後、ポンプ等を作動させて給油ステーションのタンクから前記流体荷役装置1を通してタンクローリのタンクに所要の流体を積み込む。この積み込みが終了したときは、前記コネクター11の操作レバー11aを操作して、前記記タンクローリ側のコネクターと流体荷役装置1側のコネクター11とを切り離して、タンクローリが給油ステーションを離れる。
【0022】
しかし、前記流体の積み込みの途中、または積み込みが終了した後前記タンクローリ側のコネクターと流体荷役装置1側のコネクター11を切り離す前に、誤ってタンクローリが流体荷役装置1から離れる方向に移動する緊急事態が生じた場合には、流体荷役装置1のインボードアーム4とアウトボードアーム6との間の角度αが大きくなり、その角度が所定の限界角度を超えると、前記ワイヤーケーブル54が緊張されて前記ロック手段24の連結軸48を圧縮バネ50の付勢力に抗して引っ張り、前記連結軸48の先端部が前記クランプ手段23の連結部材40の連結片43a,43bの挿通穴43cから引き抜かれる。
【0023】
これにより、クランプ手段23は施錠が解かれてクランプ部材37,37が前記ヒンジ機構39のヒンジピン41,41を中心にして連結部材40側が瞬時に開き、クランプ部材37,37のクランプ爪38が前記開閉バルブ22a,22bの接続フランジ27,27のクランプ状態を解除させるので、開閉バルブ22a,22bは相互にそれらの接合面21,21から分離される。その際、開閉バルブ22a,22bは、弁部20a,20aが圧縮バネ35の付勢力で開口部19a,19a側に移動されて、パッキン32,32が弁座36,36に着座して前記開口部19a,19aを瞬時に閉じるので、前記アウトボードアーム6内に流体が開閉バルブ22a内の流体の流路eを通して開口部19aから外部へ流出したり、開閉バルブ22b内やそれより先端側の管路e内に残留した流体が開口部19aから外部へ流出することはない。
【0024】
なお、前記クランプ部材37,37が、前記自由状態のとき、自体の弾力により内半径を開閉バルブ22a,22bのフランジ27,27の半径より大きな曲率半径となり、前記フランジ27,27に嵌合、装着してクランプ部材37,37の連結端部(連結部材40)を連結した際に、弾力に抗して撓められて、前記のように前記フランジ27,27の半径より僅かに大きな円弧となって、前記クランプ爪38,38が前記フランジ27,27に合致するように形成すると、前記連結端部の連結穴43c,43cから連結軸48が抜き出された際、前記クランプ部材37,37が、弾力によって自由状態に戻ることにより、前記フランジ27,27から積極的に離れるため、クランプ部材37,37による開閉バルブ22a、22bのクランプ状態を迅速、確実に解除させることができる。
【0025】
また、前記において、流体荷役装置1のインボードアーム4とアウトボードアーム6との間の限界角度に対して、前記ワイヤーケーブル54によって前記連結軸48が引っ張られて、その先端部が前記クランプ手段23の連結片43a,43bの挿通穴43cから引き抜かれる時期、すなわち、前記クランプ部材37による一対の開閉バルブ22a,22bの切り離しのタイミングは、前記ワイヤーケーブル54のターンバックル52によって適宜に、かつ容易に調節することができる。また、前記連結軸48の前記挿通穴43cからの引抜力は前記圧縮バネ50の強さを変更することによって任意に設定することができる。
【0026】
このように、前記実施の形態に係る流体荷役装置の緊急切離し装置7によれば、流体荷役装置1によって給油ステーションからタンクローリに流体が積み込まれているとき、あるいは流体の積み込みが終了しても未だ前記流体荷役装置1とタンクローリとの連結が切り離されていないときに、タンクローリが流体荷役装置1から離れる方向へ異常に移動するといった不測の緊急事態が生じた場合には、前記流体荷役装置1のインボードアーム4とアウトボードアーム6との間の角度の拡大に伴う前記操作手段25のワイヤーロープ54の緊張によって、前記ロック手段24の連結軸48を軸方向に牽引して、アウトボードアーム6の先端に接続された緊急切離し装置7の一対の開閉バルブ22a,22bを連結しているクランプ手段23におけるクランプ部材37,37の連結端部(連結部材40)の結合を解除し、これにより、前記開閉バルブ22a,22bからクランプ部材37,37を迅速に外して、開閉バルブ22a,22b同士を互いに確実に分離させることができるため、流体荷役装置1の各アーム4,6同士の間の角度の開き過ぎに起因する破損事故を未然に防止することができる。しかも、前記開閉バルブ22a,22bの分離時には、それらの弁部20a,29aが開口部19a,19aを瞬時に自動的に閉鎖するので、流体荷役装置1の流体の流路内の流体が外部へ流出するのを可及的に少なくすることができる。
【0027】
また、従来の緊急切離し装置のように、分離される一対の開閉バルブ22a,22bの弁部20a,20aを閉鎖作動させるためのリンク機構や、クランプ手段23による開閉バルブ22a,22bのクランプを解除させるためのシリンダ装置を設けると共に、そのシリンダ装置に圧油を供給するための流体圧供給シリンダ装置を設け、さらに、緊急時に、アーム同士の間の角度の拡大によるワイヤケーブルの緊張によってシヤーピンを切断して、前記油圧供給シリンダ装置を作動させるための手段を設ける必要がないので、装置の構成が簡単となり、作動が確実であり、故障が少なく、シヤーピンを切断の都度交換する必要もなくて保守が容易である。また、前記シヤーピンを切断するための大きな切断力がワイヤーケーブル54を介してインボードアーム4に作用することがないので、前記インボードアーム4の配管サイズを大きくする必要がなく、流体荷役装置1を緊急切離し装置の無いものと同じ配管サイズで利用でき、あるいは緊急切離し装置7の無い流体荷役装置を立上り管(固定管)2、インボードアーム4等の配管サイズを変更することなく、緊急切離し装置付きの流体荷役装置1に容易に更新することができる。
【0028】
また、クランプ手段23のクランプ部材37,37の連結端部において、連結部材40の挿通穴43cに挿通されてクランプ部材37,37による開閉バルブ22a,22bのフランジ27,27のクランプ状態を維持または解除する前記連結軸48は、前記圧縮バネ50によってクランプ状態の維持方向へ適度な力で付勢されているので、常時は、クランプ状態が確実に維持されて不用意にクランプ状態が解除されるおそれはなく、クランプ状態の解除時には、ワイヤーケーブル54の比較的に小さな牽引力で、円滑に前記挿通穴43cから引き抜くことができると共に、シヤーピンのような切断を要する部品を備える必要がないので、繰り返し使用することができ、消耗部品がなくて経済的である。
【0029】
なお、前記実施の形態に係る流体荷役装置の緊急切離し装置においては、本発明を給油ステーション(流体貯蔵部)からタンクローリに流体を積み込む流体荷役装置に適用した場合の例を示したが、本発明はこれに限らず、給油ステーションとタンク貨車(流体輸送部)との間で流体を積み卸しする流体荷役装置や、岸壁等に設置されて陸上の流体貯蔵部と海上のタンカー(流体輸送部)との間で流体を積み卸しする流体荷役装置に適用することもできる。
【0030】
【発明の効果】
以上説明したように、本発明によれば以下の優れた効果を奏する。
請求項1に係る流体荷役装置の緊急切離し装置によれば、従来の緊急切離し装置のように、分離される一対の開閉バルブの弁部を閉鎖作動させるためのリンク機構や、クランプ手段による一対の開閉バルブのクランプ状態を解除させるためのシリンダ装置を設けると共に、そのシリンダ装置に流体を供給するための流体圧供給シリンダ装置を設け、さらに、緊急時に、アーム同士の間の角度の拡大による策状部材の緊張によってシヤーピンを切断して、前記油圧供給シリンダ装置を作動させるための手段を設ける必要がないので、装置の構成が簡単となり、作動が確実であり、故障が少なく、シヤーピンを切断の都度交換する必要もなくて保守が容易である。
また、前記シヤーピンを切断するための大きな切断力がワイヤーケーブルを介してインボードアームに作用することがないので、前記インボードアーム等の配管サイズを大きくする必要がなく、流体荷役装置を緊急切離し装置の無いものと同じ配管サイズで利用することができ、あるいは緊急切離し装置の無い流体荷役装置を固定管、インボードアーム等の配管サイズを変更することなく、緊急切離し装置付きの流体荷役装置に容易に更新することができる。
【0031】
請求項2に係る流体荷役装置の緊急切離し装置によれば、ロック手段の連結軸が、常時、クランプ部材の連結端部の連結穴に挿入される方向に付勢バネで付勢されているので、常時は、前記連結軸によってクランプ部材による一対の開閉バルブのクランプ状態が確実に維持されて、不用意にクランプ状態が解除されるおそれはないと共に、クランプ状態の解除時には、ワイヤーケーブルの比較的に小さな牽引力で、前記連結軸を前記クランプ部材の連結端部の挿通穴から容易に引き抜くことができる。また、前記連結軸は、前記クランプ部材の連結端部の連結の解除時に切断を要するシヤーピンのような部品を備える必要がないので、繰り返し使用することができ、消耗部品がなくて経済的である。
【0032】
請求項3に係る流体荷役装置の緊急切離し装置によれば、操作手段の索状部材が、アウトボードアームに設けた案内部材によって、ロック手段の連結軸側との連結側を該連結軸の軸方向に向けて案内、支持されているので、緊急時に索状部材が緊張した際に、該索状部材が前記連結軸をその軸方向に沿って牽引して、前記連結軸の端部をクランプ部材の連結端部の連結穴から円滑、迅速に引き抜くことができる。
【0033】
請求項4に係る流体荷役装置の緊急切離し装置によれば、操作手段の索状部材に、その長さを調節する長さ調整手段が設けられているので、緊急時にロック手段の連結軸をクランプ手段のクランプ部材の挿通穴から完全に引き抜くのに必要な長さを容易に設定することができて、前記クランプ部材による一対の開閉バルブの切り離しのタイミングを、適宜に、かつ容易に調節することができる。
【図面の簡単な説明】
【図1】 本発明の一実施の形態に係る流体荷役装置の緊急切離し装置を示す平面図である。
【図2】 同じく側面図である。
【図3】 同じく要部の縦断面図である。
【図4】 図3のX矢視図である。
【図5】 図3のY−Y断面図である。
【符号の説明】
1 流体荷役装置
2 立上り管(固定管)
3,5,8 スイベルジョイント
4 インボードアーム
6 アウトボードアーム
7 緊急切離し装置
18a,18b バルブボディー
19a 開口部
20a 弁部
21 接合面
22a,22b 開閉バルブ
23 クランプ手段
24 ロック手段
25 操作手段
27 フランジ
37 クランプ部材
38 クランプ爪
39 ヒンジ機構(ヒンジ)
40 連結部材
45 ホルダー
47 支持板
48 連結軸
50 圧縮バネ(付勢バネ)
52 ターンバックル(長さ調整部手段)
53 取付金具
54 ワイヤーケーブル(索状部材)
55 案内リング(案内部材)
α 角度
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an emergency disconnecting device for a fluid handling device for loading and unloading the fluid between a fluid storage unit for storing a fluid such as liquefied petroleum gas and a fluid transporting unit such as a tank truck or a tanker.
[0002]
[Prior art]
Generally, the fluid handling device includes a riser pipe fixed to a quay or the like and connected to a fluid storage unit, an inboard arm connected to the riser pipe so as to be capable of horizontal and vertical turning, and the inboard arm An outboard arm connected to the front end of the outboard arm and an emergency disconnecting device having one end connected to the front end of the outboard arm and the other end connected to a fluid transport unit such as a tanker. The angle between the inboard arm and the outboard arm when a tanker or the like leaves a safe tolerance when the fluid such as liquefied petroleum is unloaded between the section and the fluid transport section. In the event of an emergency that opens beyond the limit angle, the emergency disconnecting device is activated to disconnect the fluid handling device from the tanker or the like.
[0003]
Conventionally, as the emergency disconnection device, there is an on-off valve that is simultaneously closed and operated by a link mechanism, and a pair of divided bodies that are joined so as to be able to be separated by abutting the joint surfaces, and the pair of divided bodies can be separated from each other A disconnecting coupler comprising a clamp member to be connected and a cylinder device for releasing the connection by the clamp member, a fluid pressure supply cylinder device which is fixed to the outboard arm and supplies a fluid for operating the cylinder device, and the fluid pressure supply A first shear pin for fixing the cylinder device to a fluid pressure supply disabled state, a second shear pin for fixing the link mechanism to the open state of the on-off valve, one end coupled to the inboard arm, and the other end to the first A first cord-like member connected to a second shear pin, and the inboard arm and the outboard In an emergency in which the angle between the first and second ropes exceeds the limit angle, the second shear pin is cut by the tension of the first and second cord-like members, and the on-off valve is closed by the link mechanism. It is known that the first shear pin is cut and hydraulic pressure is supplied from the fluid pressure supply cylinder device to the cylinder device to release the connection of the pair of divided bodies by the clamp member (for example, Patent Document 1).
[0004]
[Patent Document 1]
Japanese Patent Publication No. 1-444600
[0005]
[Problems to be solved by the invention]
However, the conventional emergency disconnecting device of the fluid handling apparatus is provided with a link mechanism for closing the on / off valves of the pair of divided bodies to be separated, a cylinder device for releasing the connection of the pair of divided bodies by the clamp member, and the Since the fluid pressure supply cylinder device for supplying the fluid to the cylinder device is provided, there is a problem that the configuration of the device is complicated and the manufacturing cost becomes high, and the link mechanism is operated in an emergency, Since it is necessary to cut the first and second shear pins by the tension of the cord-like member in order to operate the hydraulic supply cylinder device, a large cutting force for cutting the first and second shear pins causes the cord-like member to be cut. For this reason, the piping size of the fluid handling device such as the inboard arm is separated from that without the device. Must hear, also, first, it is necessary to replace each of the cut second shear pin, there is a time-consuming problem in maintenance.
[0006]
The present invention has been made in view of the above circumstances, and can be easily applied to a fluid handling device having the same piping size as that without an emergency disconnecting device, has a simple configuration, is easy to maintain, and has a low manufacturing cost. It is an object to provide an emergency disconnecting device for a fluid handling device that can be made inexpensive.
[0007]
[Means for Solving the Problems]
The present invention is characterized by the following points in order to solve the above problems.
In other words, an emergency disconnecting device for a fluid handling apparatus according to claim 1 includes an inboard arm connected to a fixed pipe connected to a fluid reservoir so as to be capable of horizontal and vertical turning, and a vertical turning at the tip of the inboard arm. A fluid handling apparatus provided with an outboard arm that is operatively connected, and an emergency disconnecting device having one end connected to the tip of the outboard arm and the other end connected to a fluid transport unit, the emergency disconnecting device comprising: A valve part is provided inside the valve body that opens the fluid flow path opening of the valve body at the time of joining, and closes the fluid flow path at the time of separation, and the joint surfaces on the opening side of the valve body are brought into contact with each other so that they can be separated. A pair of open / close valves and a plurality of clamp members connected by hinges to grip the outer periphery of each valve body and A clamping means for detachably connecting the opening / closing valves of the clamp member, a locking means for maintaining and releasing the connection of the pair of opening / closing valves by inserting and pulling the connecting shaft into and from the connecting hole of the connecting end of the clamp member, and one end In an emergency in which the angle between the inboard arm and the outboard arm exceeds a limit angle by a cord-like member fixed to the inboard arm and the other end connected to the connecting shaft of the locking means. Operation means for releasing the connection of the pair of on-off valves by pulling the connection shaft of the lock means and pulling it out of the connection hole of the clamp member to release the connection end of the clamp member. It is characterized by having.
[0008]
The emergency disconnecting device for a fluid handling apparatus according to claim 2 is the emergency disconnecting device according to claim 1, wherein the connecting shaft of the locking means is always inserted into the connecting hole of the connecting end of the clamp member. It is characterized in that it is biased by a biasing spring in a direction.
[0009]
An emergency disconnecting device for a fluid handling apparatus according to claim 3 is the emergency disconnecting device according to claim 1 or 2, wherein the cord-like member of the operating means is provided by a guide member provided on the outboard arm. It is characterized in that the side of the locking means connected to the connecting shaft is guided and supported in the axial direction of the connecting shaft.
[0010]
Moreover, the emergency disconnection device of the fluid handling apparatus according to claim 4 is the emergency disconnection device according to any one of claims 1 to 3, wherein the length of the cord-like member of the operation means is adjusted. An adjustment means is provided.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an emergency disconnecting device for a fluid handling apparatus according to an embodiment of the present invention will be described with reference to FIGS.
1 and 2, reference numeral 1 denotes a fluid handling device for loading the fluid from a refueling station (fluid storage unit) that stores fluid such as liquefied petroleum gas into a tank of a tank truck (fluid transport unit). The fluid handling apparatus 1 is fixedly installed at a fueling station (not shown), and is connected to an underground tank (fluid storage tank) of the fueling station via a pump or the like. An inboard arm 4 having a base end portion (right end portion in FIG. 2) connected to an upper end of the riser pipe 2 via a swivel joint 3 capable of horizontal and vertical turning, and a tip of the inboard arm 4 An outboard arm 6 connected to the section through a swivel joint 5 that can pivot vertically, an emergency disconnecting device 7 connected to the lower end of the outboard arm 6 via a flange joint, and a lower end of the emergency disconnecting device 7 A drop pipe 9 connected via a swivel joint 8 that can be swiveled vertically to a connector, and a connector 11 connected to the lower end of the drop pipe 9 via a stop valve 10 , And a balance unit 12 provided between the fixed side 3a of the vertical pivoting of the swivel joint 3 and the inboard arm 4.
[0012]
The balance unit 12 is pinned to be pivotable in a vertical (vertical) direction on a spring box 13 fixed to a side portion of the inboard arm 4 and a bracket 14 fixed to a fixed side 3a of a vertical swing portion of the swivel joint 3. A coupled lever 15 and a chain 16 having a base end fixed to the lever 15 and having a distal end inserted into the spring box 13 and engaged with a spring mounted in the spring box 13. When the inboard arm 4 is swung in the vertical (vertical) direction via the swivel joint 3, the change in the turning moment of the inboard arm 3 is balanced by the spring in the spring box 13. .
A bolt 17 is screwed up and down in the lever 15, and the limit position of the downward turning angle of the inboard arm 3 can be adjusted by bringing the tip of the bolt 17 into contact with the bracket 14. It is like that.
[0013]
As shown in FIG. 3, the emergency disconnecting device 7 has valve portions 20a and 20a for opening and closing a fluid flow path in openings 19a and 19a on one end sides of the valve bodies 18a and 18b, respectively. , 19a side joining surfaces 21 and 21 are abutted against each other, a pair of on-off valves 22a and 22b are joined together, a clamp means 23 that connects the abutted on-off valves 22a and 22b in a separable manner, and the clamping means 23 Is provided with locking means 24 for maintaining and releasing the connection of the on-off valves 22a and 22b, and operating means 25 for operating the locking means 24 to release the connection of the on-off valves 22a and 22b.
[0014]
The valve body 18a of the one open / close valve 22a has a body portion 26 in which a lower half portion (one end side half portion) is a large diameter cylinder and an upper half portion (other end side half portion) is a small diameter cylinder, A flange 27 having a taper formed on the back surface 27a opposite to the joint surface 21a is provided on the outer periphery of the lower end (one end) of the body portion 26 so that the outer peripheral side is thin, and is connected to the outer periphery of the upper end (the other end). A flange 28 is provided, and the connection flange 28 is connected to the flange 6a at the lower end of the outboard arm 6 by bolts 29a and nuts 29b. Further, the valve body 18b of the other opening / closing valve 22b omits the connection flange 28 of the valve body 18a of the one opening / closing valve 22a, and the opening 19a on one end side is formed at the upper end (one end) of the valve body 18b. Except for the point formed on the ring 29 fixed by fitting, it is formed in substantially the same manner as the valve body 18a, and the joint surfaces 21a and 21a are abutted against each other with the vertical positional relationship reversed with respect to the valve body 18a. To be joined. The lower end (the other end) of the valve body 18b is fixed to the swivel joint 8.
[0015]
The valve portions 20a and 20a of the open / close valves 22a and 22b are formed in the same manner, and are slidably inserted in the small diameter cylindrical portions of the valve bodies 18a and 18b in the axial direction. A cylindrical member 31 closed by the closing member 30, a packing 32 mounted on the opening 19 a side of the closing member 30, and screwed and fixed to the closing member 30 so as to sandwich the packing 32. And a spool 33. A ring that is mounted inside a large-diameter hole 31a opposite to the closing member 30 of the cylindrical member 31, is mounted in a step portion 31b of the large-diameter hole 31a, and the valve bodies 18a and 18b, and is fixed by a retaining ring 34a. The valve portion 20a is always urged toward the opening portion 19a by a compression spring 35 whose both ends are in contact with the inner step portion 31c of the valve body 18b or the valve body 18b, and the open / close valves 22a, 22b. Are separated from the joint surfaces 21 and 21, the packing 32 is seated on a valve seat 36 formed inside the opening 19a to close the opening 19a, and the on-off valves 22a and 22b are joined to the joint surfaces 21 and 21. When they are joined together, the shaft portions 33a, 33a of the closing member 33 come into contact with each other, so that the compression spring 35 is compressed and the packing 35 is separated from the valve seat 36. The opening 19a is opened, thereby, the on-off valve 22a, the flow path e of the fluid in 22b, e is adapted to be opened and closed Te. Note that one or more fluid passages 31a are provided around the cylindrical member 31 on the side of the closing member 30 so as to penetrate the peripheral wall at intervals in the circumferential direction.
[0016]
As shown in FIG. 5, the clamp means 23 includes a pair of arcuate clamp members 37, 37 having an inner radius slightly larger than the radius of the flanges 27, 27 of the valve bodies 18a, 18b of the on-off valves 22a, 22b. A plurality of (two in the example shown in the figure) arcuate clamp claws 38 integrally connected to the inside of the clamp members 37, 37 at predetermined intervals in the circumferential direction thereof, and the clamp members 37, 37 is provided at one end side of hinge 37 (hinge) 39 that connects the one end portions thereof to each other, and is fixedly provided on the other end portion (connecting end portion) side of the clamp members 37, 37. And a connecting member 40 for connecting the other end portions to each other.
The clamp pawl 38 has a V-shaped cross section that fits with the connection flanges 27, 27 of the valve bodies 18 a, 18 b of the opening / closing valves 22 a, 22 b, and an arcuate groove 38 a ( 3) is formed.
[0017]
The hinge mechanism 39 is clamped to a pair of support pieces 37a and 37a which protrude outwardly in the substantially radial direction at one end of each of the clamp members 37 and 37 and are fixed with a space in the vertical direction in FIG. Shaft holes 37b, 37b are provided along the central axis direction of the shaft, and the hinge pins 41, 41 are inserted across the shaft holes 37b, 37b and supported so as to be rotatable around the shaft. The male screw portions 42a and 42b in the opposite directions are screwed into the formed screw holes 41a and 41b in the opposite directions with the center of the adjustment bolt 42 having the hexagon head 42a in the center, and the adjustment bolt 42 is rotated. Thus, the distance between the hinge pins 41 and 41 can be adjusted.
The connecting member 40 protrudes from the other end of one clamp member 37 in a substantially radial direction and is fixed at a distance in the vertical direction in FIG. 3 and a pair of connecting pieces (female connecting pieces) 43a. The other end of the clamp member 37 is fixed so as to protrude outward in the radial direction, and is provided with one connecting piece (male connecting piece) 43b inserted between the pair of connecting pieces 43a, 43a. In the connecting pieces 43 a and 43 b, insertion holes 43 c and 43 c having the same diameter into which a connecting shaft 48 described later is inserted are opened in the central axis direction of the clamp member 37.
[0018]
As shown in FIG. 3, the locking means 24 is fixed to the upper surface of the flange 6a through a collar 44 by a bolt 29a for fixing the valve body 18a of the on-off valve 22a to the flange 6a of the outboard arm 6. The holder 45 is fitted into a guide hole 45a having an upper portion formed in the holder 45 and a shaft hole 46a of a cylindrical collar 46 fixed to the upper surface of the holder 45, and a lower portion is disposed on the side of the one valve body 18a. A connecting shaft 48 which is fitted in a guide hole 47a of the support plate 47 fixed to the portion and is movable in the axial direction of the on-off valves 22a and 22b, and a cylindrical member 49 fixed to the lower surface of the holder 45. The both ends are brought into contact with the holder 45 and a flange 48a provided at the lower part of the connecting shaft 48, and the connecting shaft is connected via the flange 48a. 5 and the compression spring (biasing spring) 50 for urging the downward and a eye nut 51 screwed to the upper end of the connecting shaft 48.
[0019]
At the lower end of the connecting shaft 48, valve bodies 18a, 18b of the on-off valves 22a, 22b are joined by joint surfaces 21, 21, and the clamp members 37, 37 are disposed outside the flanges 27, 27 of the valve bodies 18a, 18b. Is inserted and the arcuate grooves 38a of the clamp claws 38 are fitted (clamped state), the insertion holes 43c, 43c in which the axial centers of the connecting pieces 43a, 43b of the clamp members 37, 37 are aligned. The insertion state is maintained by the urging force of the compression spring 50.
The downward movement of the connecting shaft 48 is restricted by the lower surface of the flange 48a coming into contact with the upper surface of the support plate 47, and the lower end of the connecting shaft 48 is inserted into the insertion holes 43c and 43c. It corresponds to the lower surface of the piece 40a. Further, the upward movement of the connecting shaft 48 is limited by the upper surface of the flange 48 a being in contact with the lower end of the cylindrical member 49, and the moving distance of the connecting shaft 48 that moves to the limit position is the connecting shaft 48. The lower end of the support plate 47 is sufficiently separated from the upper end surface of the upper connection piece 40a by being escaped from the insertion hole 43c of the connection piece 40a of the clamp member, and is not separated from the guide hole 47a of the support plate 47.
[0020]
One end of the operating means 25 is connected to the eye nut 51 of the connecting shaft 48 of the locking means 24, and the other end is connected to the side portion of the inboard arm 4 via a turnbuckle (length adjusting means) 52 and a connection fitting 53a. A wire cable (cord-like member) 54 connected to an attachment piece 53 fixed to the cable is provided. The wire cable 54 is passed through a central hole of a guide ring 55 whose intermediate portion is fixed to the side portion of the outboard arm 6, so that the wire cable 54 does not twist when loosened, and the connecting shaft when tensioned. The connection side with 48 is correctly guided in the axial direction of the connection shaft 48. The insertion holes 43c and 43c of the clamp members 37 and 37, the guide holes 47a of the support plate 47, the guide holes 45a and 46a of the holder 45 and the collar 46, the center hole of the guide ring 55, and the center of the connection fitting 53 are provided. It is set so as to be located in one vertical plane (perpendicular to the paper surface in FIG. 1). The wire cable 54 is tensioned when the inner angle α between the inboard arm 4 and the outboard arm 6 exceeds a predetermined limit angle, and resists the biasing force of the compression spring 50. The connecting shaft 48 is adjusted and set to a required length by the turnbuckle 52 so that the connecting shaft 48 can be completely pulled out from the insertion hole 43c of the clamp members 37, 37. Instead of the guide ring 55, a pulley or the like can be used.
[0021]
Next, the operation of the emergency disconnecting device 7 of the fluid handling apparatus according to the embodiment will be described.
In the normal state, the emergency disconnecting device 7 connected to the tip of the outboard arm 6 of the fluid handling device 1 has a pair of opening and closing valves 22a and 22b butting the joint surfaces 21 and 21 to clamp the connection flanges 27 and 27. The clamp 23 of the clamp member 37 in the means 23 is clamped by being clamped, and the connection shaft 48 of the lock means 24 is inserted into the insertion holes 43 c and 43 c of the connection pieces 43 a and 43 b of the connection member 40 of the clamp means 23. The clamp means 23 is locked so that the clamp members 37, 37 are not released.
In this normal state, when liquefied petroleum gas is loaded from the fluid storage unit into the tank truck, the outboard of the fluid handling apparatus 1 is connected to the female connector provided in the tank truck tank stopped at a predetermined position of the fueling station. After the male connector 11 provided at the tip of the arm 6 is connected, a pump or the like is operated to load a required fluid from the tank of the fueling station through the fluid handling device 1 into the tank of the tank truck. When this loading is finished, the operation lever 11a of the connector 11 is operated to disconnect the tank lorry side connector and the connector 11 on the fluid handling device 1 side, and the tank lorry leaves the oiling station.
[0022]
However, during the loading of the fluid, or after the loading is finished, before the tank truck side connector and the fluid handling apparatus 1 side connector 11 are disconnected, the tank truck accidentally moves away from the fluid handling apparatus 1. Occurs, the angle α between the inboard arm 4 and the outboard arm 6 of the fluid handling device 1 increases, and when the angle exceeds a predetermined limit angle, the wire cable 54 is strained. The connecting shaft 48 of the locking means 24 is pulled against the urging force of the compression spring 50, and the tip of the connecting shaft 48 is pulled out from the insertion holes 43c of the connecting pieces 43a and 43b of the connecting member 40 of the clamping means 23. .
[0023]
As a result, the clamping means 23 is unlocked, the clamping members 37 and 37 are instantaneously opened on the side of the connecting member 40 around the hinge pins 41 and 41 of the hinge mechanism 39, and the clamping claws 38 of the clamping members 37 and 37 are Since the clamped state of the connection flanges 27, 27 of the on-off valves 22a, 22b is released, the on-off valves 22a, 22b are separated from their joint surfaces 21, 21. At that time, the opening and closing valves 22a and 22b are moved to the openings 19a and 19a by the urging force of the compression spring 35, and the packings 32 and 32 are seated on the valve seats 36 and 36 to open the opening. Since the portions 19a and 19a are instantaneously closed, the fluid flows into the outboard arm 6 through the fluid flow path e in the on-off valve 22a, or from the opening 19a to the outside. The fluid remaining in the pipe line e does not flow out from the opening 19a.
[0024]
When the clamp members 37 and 37 are in the free state, the inner radius of the clamp members 37 and 37 is larger than the radius of the flanges 27 and 27 of the on-off valves 22a and 22b due to its own elasticity, and the clamp members 37 and 37 are fitted to the flanges 27 and 27. When the connecting end portions (connecting members 40) of the clamp members 37, 37 are connected and bent, they are bent against the elastic force, and as described above, the arc is slightly larger than the radius of the flanges 27, 27. When the clamp claws 38 and 38 are formed so as to match the flanges 27 and 27, when the connecting shaft 48 is extracted from the connecting holes 43c and 43c of the connecting end, the clamp members 37 and 37 are connected. However, when the springs return to the free state due to elasticity, they are positively separated from the flanges 27, 27. The up state quickly, can be reliably released.
[0025]
Further, in the above, the connecting shaft 48 is pulled by the wire cable 54 with respect to a limit angle between the inboard arm 4 and the outboard arm 6 of the fluid handling apparatus 1, and the distal end portion thereof is the clamping means. The timing when the pair of open / close valves 22a, 22b are pulled out from the insertion holes 43c of the connecting pieces 43a, 43b of the 23, that is, the timing of separating the pair of on-off valves 22a, 22b by the clamp member 37 is appropriately and easily performed by the turnbuckle 52 of the wire cable 54. Can be adjusted to. Further, the pulling force of the connecting shaft 48 from the insertion hole 43 c can be arbitrarily set by changing the strength of the compression spring 50.
[0026]
As described above, according to the emergency disconnecting device 7 for a fluid handling apparatus according to the above-described embodiment, when the fluid is loaded from the oil supply station to the tank truck by the fluid handling apparatus 1, or even when the loading of the fluid is finished. If an unexpected emergency situation occurs in which the tank truck moves abnormally away from the fluid handling apparatus 1 when the fluid handling apparatus 1 and the tank truck are not disconnected, the fluid handling apparatus 1 As the angle between the inboard arm 4 and the outboard arm 6 increases, the tension of the wire rope 54 of the operating means 25 pulls the connecting shaft 48 of the locking means 24 in the axial direction, so that the outboard arm 6 The clamp means 23 connecting the pair of on-off valves 22a and 22b of the emergency disconnecting device 7 connected to the tip of the The coupling end portions (coupling members 40) of the clamping members 37, 37 are released, whereby the clamping members 37, 37 are quickly removed from the on-off valves 22a, 22b, and the on-off valves 22a, 22b are connected to each other. Since it can be surely separated, it is possible to prevent a damage accident caused by an excessive opening of the angle between the arms 4 and 6 of the fluid handling device 1. Moreover, when the on-off valves 22a and 22b are separated, the valve portions 20a and 29a automatically and instantly close the openings 19a and 19a, so that the fluid in the fluid flow path of the fluid handling device 1 is discharged to the outside. It is possible to reduce the outflow as much as possible.
[0027]
Further, as in the case of the conventional emergency disconnecting device, the link mechanism for closing the valve portions 20a and 20a of the pair of opening and closing valves 22a and 22b to be separated and the clamping of the opening and closing valves 22a and 22b by the clamping means 23 are released. In addition, a cylinder device is provided to supply pressure oil to the cylinder device, and in the event of an emergency, the shear pin is cut by the tension of the wire cable by expanding the angle between the arms. In addition, since it is not necessary to provide means for operating the hydraulic cylinder device, the configuration of the device is simplified, the operation is reliable, there is little failure, and there is no need to replace the shear pin every time it is cut. Is easy. Further, since a large cutting force for cutting the shear pin does not act on the inboard arm 4 via the wire cable 54, there is no need to increase the piping size of the inboard arm 4, and the fluid handling apparatus 1 Can be used with the same pipe size as that without an emergency disconnection device, or an emergency disconnection of a fluid handling device without an emergency disconnection device 7 without changing the pipe size of the riser pipe (fixed pipe) 2, inboard arm 4, etc. It can be easily updated to the fluid handling apparatus 1 with the apparatus.
[0028]
Further, at the connecting end portion of the clamp members 37, 37 of the clamp means 23, the flanges 27, 27 of the on-off valves 22a, 22b are clamped by the clamp members 37, 37 through the insertion holes 43c of the connecting member 40 or maintained. The connecting shaft 48 to be released is urged by the compression spring 50 with an appropriate force in the direction in which the clamped state is maintained, so that the clamped state is always maintained and the clamped state is inadvertently released. There is no fear, and when releasing the clamped state, the wire cable 54 can be smoothly pulled out from the insertion hole 43c with a relatively small traction force, and it is not necessary to provide a part that requires cutting such as a shear pin. It can be used and has no consumable parts and is economical.
[0029]
In the emergency disconnecting device for a fluid handling device according to the above embodiment, the present invention is applied to a fluid handling device that loads fluid from a fueling station (fluid storage unit) to a tank truck. Is not limited to this, a fluid handling equipment that loads and unloads fluid between a refueling station and a tank wagon (fluid transport section), an onshore fluid storage section and a marine tanker (fluid transport section) installed on a quay, etc. The present invention can also be applied to a fluid handling device that loads and unloads fluids.
[0030]
【The invention's effect】
As described above, according to the present invention, the following excellent effects are obtained.
According to the emergency disconnecting device of the fluid handling apparatus according to claim 1, as in the conventional emergency disconnecting device, the link mechanism for closing the valve portions of the pair of on-off valves to be separated, and the pair of clamp means In addition to providing a cylinder device for releasing the clamp state of the on-off valve, a fluid pressure supply cylinder device for supplying fluid to the cylinder device is provided, and in addition, in the event of an emergency, a measure by expanding the angle between the arms Since it is not necessary to provide means for operating the hydraulic cylinder device by cutting the shear pin by tension of the member, the configuration of the device is simplified, the operation is reliable, there is little failure, and each time the shear pin is cut There is no need for replacement and maintenance is easy.
In addition, since a large cutting force for cutting the shear pin does not act on the inboard arm via the wire cable, there is no need to increase the piping size of the inboard arm or the like, and the fluid handling device is urgently disconnected. It can be used with the same piping size as the one without the device, or the fluid handling device without the emergency disconnecting device can be changed to the fluid handling device with the emergency disconnecting device without changing the piping size of the fixed pipe, inboard arm, etc. Can be updated easily.
[0031]
According to the emergency disconnecting device of the fluid handling apparatus according to claim 2, the connecting shaft of the locking means is always urged by the urging spring in the direction of being inserted into the connecting hole of the connecting end of the clamp member. Normally, the clamp state of the pair of on-off valves by the clamp member is reliably maintained by the connecting shaft, and there is no fear that the clamp state is inadvertently released. The connecting shaft can be easily pulled out from the insertion hole at the connecting end of the clamp member with a small traction force. In addition, since the connecting shaft does not need to be provided with a part such as a shear pin that needs to be cut when the connection of the connecting end of the clamp member is released, it can be used repeatedly and is economical because there are no consumable parts. .
[0032]
According to the emergency disconnecting device of the fluid handling apparatus according to claim 3, the connecting member is connected to the connecting shaft side of the locking device by the guide member provided on the outboard arm. Since it is guided and supported in the direction, when the cord-like member is tensioned in an emergency, the cord-like member pulls the connecting shaft along the axial direction and clamps the end of the connecting shaft. It can be smoothly and quickly pulled out from the connecting hole at the connecting end of the member.
[0033]
According to the emergency disconnecting device of the fluid handling apparatus according to claim 4, since the length adjusting means for adjusting the length is provided on the cord-like member of the operating means, the connecting shaft of the locking means is clamped in an emergency. It is possible to easily set the length necessary to completely pull out from the insertion hole of the clamping member of the means, and to adjust the timing of separating the pair of on-off valves by the clamping member appropriately and easily. Can do.
[Brief description of the drawings]
FIG. 1 is a plan view showing an emergency disconnection device for a fluid handling device according to an embodiment of the present invention.
FIG. 2 is a side view of the same.
FIG. 3 is a longitudinal sectional view of the main part of the same.
4 is a view taken in the direction of arrow X in FIG. 3;
5 is a cross-sectional view taken along line YY of FIG.
[Explanation of symbols]
1 Fluid handling equipment
2 Rising pipe (fixed pipe)
3, 5, 8 swivel joint
4 Inboard arm
6 Outboard arm
7 Emergency disconnecting device
18a, 18b Valve body
19a opening
20a Valve part
21 Joint surface
22a, 22b Open / close valve
23 Clamping means
24 Locking means
25 Operating means
27 Flange
37 Clamp member
38 Clamp claw
39 Hinge mechanism (hinge)
40 connecting members
45 holder
47 Support plate
48 connecting shaft
50 Compression spring (biasing spring)
52 Turnbuckle (length adjustment means)
53 Mounting bracket
54 Wire cable
55 Guide ring (guide member)
α angle

Claims (4)

流体貯蔵部に接続された固定管に水平旋回および垂直旋回可能に接続されたインボードアームと、該インボードアームの先端に垂直旋回可能に接続されたアウトボードアームと、一端側が前記アウトボードアームの先端に接続され、他端側が流体輸送部に接続された緊急切離し装置とを設けた流体荷役装置において、
前記緊急切離し装置は、接合時にバルブボディーの流体流路の開口部を開き、切離し時に前記流体流路を閉じる弁部をバルブボディーの内部に設け、前記バルブボディーの開口部側の接合面を互いに突き合わせて切離し可能に接合される一対の開閉バルブと、ヒンジで連結された複数のクランプ部材によって各バルブボディーの外周部を把持して前記接合された一対の開閉バルブを互いに分離可能に連結するクランプ手段と、前記クランプ部材の連結端部の連結穴に対する連結軸の挿入および引き抜きにより、前記一対の開閉バルブの連結を維持および解除するロック手段と、一端を前記インボードアームに固定され、他端を前記ロック手段の連結軸に連結された索状部材によって、前記インボードアームと前記アウトボードアームとの間の角度が限界角度を超えた緊急時に、前記ロック手段の連結軸を牽引して前記クランプ部材の連結穴から引き抜いて前記クランプ部材の連結端部を解放させることにより、前記一対の開閉バルブの連結の解除動作を行わせる操作手段とを備えていることを特徴とする流体荷役装置の緊急荷役装置。
An inboard arm connected to a fixed pipe connected to the fluid reservoir so as to be able to turn horizontally and vertically, an outboard arm connected to the tip of the inboard arm so as to be able to turn vertically, and one end side of the outboard arm In the fluid handling apparatus provided with an emergency disconnecting device connected to the tip of the other end and connected to the fluid transport part at the other end side,
The emergency disconnecting device is provided with a valve portion inside the valve body that opens an opening of the fluid flow path of the valve body at the time of joining and closes the fluid flow path at the time of disconnecting, and the joint surfaces on the opening side of the valve body are mutually connected. A pair of opening and closing valves that are butt-joined and separable and a clamp that grips the outer periphery of each valve body by a plurality of clamp members connected by hinges and detachably connects the joined pair of opening and closing valves to each other Means, a locking means for maintaining and releasing the connection of the pair of on-off valves by inserting and pulling out a connecting shaft with respect to the connecting hole of the connecting end of the clamp member, one end fixed to the inboard arm, and the other end Between the inboard arm and the outboard arm by a cord-like member connected to the connecting shaft of the locking means. In an emergency in which the degree exceeds the limit angle, the connection shaft of the pair of on-off valves is connected by pulling the connection shaft of the lock means and pulling it out of the connection hole of the clamp member to release the connection end of the clamp member. An emergency cargo handling device for a fluid cargo handling device, comprising operating means for performing a release operation.
前記ロック手段の連結軸は、常時、前記クランプ部材の連結端部の連結穴に挿入される方向に付勢バネで付勢されていることを特徴とする請求項1に記載の流体荷役装置の緊急切離し装置。2. The fluid handling apparatus according to claim 1, wherein the connecting shaft of the locking means is always biased by a biasing spring in a direction of being inserted into the connecting hole of the connecting end of the clamp member. Emergency disconnect device. 前記操作手段の索状部材は、前記アウトボードアームに設けた案内部材によって、前記ロック手段の連結軸との連結側が該連結軸の軸方向に向けて案内、支持されていることを特徴とする請求項1または2に記載の流体荷役装置の緊急切離し装置。The cord-like member of the operating means is characterized in that the connecting side of the locking means with the connecting shaft is guided and supported in the axial direction of the connecting shaft by a guide member provided on the outboard arm. The emergency disconnection device for a fluid handling device according to claim 1 or 2. 前記操作手段の索状部材には、その長さを調節する長さ調整手段が設けられていることを特徴とする請求項1〜3のいずれかに記載の流体荷役装置の緊急切離し装置。The emergency disconnection device for a fluid handling device according to any one of claims 1 to 3, wherein the cord-like member of the operation means is provided with a length adjusting means for adjusting the length thereof.
JP2002314150A 2002-10-29 2002-10-29 Emergency unloading device for fluid handling equipment Expired - Lifetime JP4098061B2 (en)

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Publication number Priority date Publication date Assignee Title
JP4624962B2 (en) * 2006-06-19 2011-02-02 昭和飛行機工業株式会社 Marine fuel tanker
JP6343192B2 (en) * 2014-07-03 2018-06-13 東京貿易エンジニアリング株式会社 Fluid handling equipment
KR200487465Y1 (en) * 2016-12-28 2018-09-19 한국가스공사 Unloading arm stopper pin
CN116379236A (en) * 2022-12-26 2023-07-04 连云港奇胜流体科技有限公司 Marine fluid loading arm with emergency release and quick connection device

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