JP2023529116A - 液化ガス貯蔵タンク及びそれを含む船舶 - Google Patents
液化ガス貯蔵タンク及びそれを含む船舶 Download PDFInfo
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Abstract
Description
Claims (16)
- 液化ガスを収容する貯蔵空間を形成し、上面に液化ガスの流出入のためのドームが形成される壁体と、
上端が上記ドームに固定され、液化ガスをローディング及びアンローディングするためのパイプ及び液化ガスをアンローディングするための排出ポンプが設けられるポンプタワーと、
上記貯蔵空間の底をなす上記壁体に設けられて上記ポンプタワーの下端を拘束するロータリーベアリングの下側部と、を含み、
上記ポンプタワーは、
上記ロータリーベアリングの下側部によって水平の動きは拘束され、垂直の動きは許容されるようにガイドされるロータリーベアリングの上側部を有し、
上記ロータリーベアリングの下側部は、
垂直中心を基準として放射状に配置され、上記垂直中心と並んで設けられて複数の拘束面をそれぞれ有する複数の拘束部を含み、上記複数の拘束部の間に上記ロータリーベアリングの上側部が装着されるようにすることを特徴とする液化ガス貯蔵タンク。 - 上記ロータリーベアリングの下側部は、
上記壁体から内側に突出するように上記壁体に固定され、円形の断面を有する固定部と、
上記固定部の周りに放射状に配置される上記複数の拘束部と、を含むことを特徴とする請求項1に記載の液化ガス貯蔵タンク。 - 上記拘束部は、
一定角度で広がっている1対の上記拘束面を連結する弧状を有することを特徴とする請求項1に記載の液化ガス貯蔵タンク。 - 上記拘束部は、
上記垂直中心を基準として点対称に設けられることを特徴とする請求項1に記載の液化ガス貯蔵タンク。 - 液化ガスを収容する貯蔵空間を形成し、上面に液化ガスの流出入のためのドームが形成される壁体と、
上端が上記ドームに固定され、液化ガスをローディング及びアンローディングするためのパイプ及び液化ガスをアンローディングするための排出ポンプが設けられるポンプタワーと、
上記貯蔵空間の底をなす上記壁体に設けられて上記ポンプタワーの下端を拘束するロータリーベアリングの下側部と、を含み、
上記ポンプタワーは、
上記ロータリーベアリングの下側部によって水平の動きは拘束され、垂直の動きは許容されるようにガイドされるロータリーベアリングの上側部を有し、
上記ロータリーベアリングの下側部は、
垂直中心を基準として放射状に配置され、上記垂直中心と並んで設けられて上記ロータリーベアリングの上側部を拘束する複数の拘束面を有し、
上記ロータリーベアリングの上側部は、
上記複数の拘束面の間に入るように上記ポンプタワーの下方に突出して上記拘束面と対向する装着面を有する複数の装着部と、互いに異なる角度の上記装着面を有する上記複数の装着部を連結する補強部と、を含むことを特徴とする液化ガス貯蔵タンク。 - 上記装着部は、
上記ポンプタワーの下方に垂直に突出する突出部と、
上記突出部の上端に設けられる補強リブと、を有し、
上記装着面は上記突出部に垂直に設けられて上記突出部とT字をなすことを特徴とする請求項5に記載の液化ガス貯蔵タンク。 - 上記装着部は、
上記突出部に平行に設けられ、上記装着面が設けられる補強板をさらに含むことを特徴とする請求項6に記載の液化ガス貯蔵タンク。 - 上記補強部は、
90度を有するように広がっている上記複数の装着部を連結するように設けられることを特徴とする請求項5に記載の液化ガス貯蔵タンク。 - 上記補強部は、
互いに異なる角度で配置された上記複数の装着部を連結するために少なくとも1回折り曲げられるか、または曲がるように設けられた形状を有することを特徴とする請求項5に記載の液化ガス貯蔵タンク。 - 上記装着部は、
上記垂直中心を基準として点対称に設けられることを特徴とする請求項5に記載の液化ガス貯蔵タンク。 - 液化ガスを収容する貯蔵空間を形成し、上面に液化ガスの流出入のためのドームが形成される壁体と、
上端が上記ドームに固定され、液化ガスをローディング及びアンローディングするためのパイプ及び液化ガスをアンローディングするための排出ポンプが設けられるポンプタワーと、
上記貯蔵空間の底をなす上記壁体に設けられて上記ポンプタワーの下端を拘束し、液化ガスをエンジンに供給するための燃料ポンプが設けられるロータリーベアリングの下側部と、を含み、
上記ロータリーベアリングの下側部は、
垂直中心を基準として放射状に配置され、上記垂直中心と並んで設けられて上記ポンプタワーの下端を拘束する複数の拘束面を有する拘束部と、
上記拘束部から上記垂直中心から遠くなる方向に延長する延長部と、
上記延長部に固定され、上記燃料ポンプを支持するポンプ支持部と、を含むことを特徴とする液化ガス貯蔵タンク。 - 上記拘束部は複数設けられて上記垂直中心を基準として放射状に配置され、
上記延長部は何れか1つの上記拘束部から延長されるように設けられることを特徴とする請求項11に記載の液化ガス貯蔵タンク。 - 上記ポンプ支持部は、
少なくとも一部が上記燃料ポンプを取り囲むU字状であり、上記燃料ポンプの周りで上記燃料ポンプの荷重方向と並んで補強部が設けられることを特徴とする請求項11に記載の液化ガス貯蔵タンク。 - 上記ロータリーベアリングの下側部は、
上記貯蔵空間の液化ガスのレベルを測定するためのレベルゲージパイプを支持するレベルゲージ支持部をさらに含み、
上記ポンプ支持部は、上記燃料ポンプを取り囲む部分を基準として一側が上記延長部に固定され、上記一側とずれた他側に上記レベルゲージ支持部が固定されることを特徴とする請求項11に記載の液化ガス貯蔵タンク。 - 上記燃料ポンプは、
上記貯蔵空間内に貯蔵された液化ガスを上記エンジンに供給する機能に加えて、上記貯蔵空間内に残留する液化ガスを外部に排出するストリッピング機能または上記貯蔵空間の底の液化ガスを上記貯蔵空間の上部に循環するスプレーイング機能を複合的に具現することを特徴とする請求項11に記載の液化ガス貯蔵タンク。 - 請求項1ないし請求項5の何れか1項に記載の上記液化ガス貯蔵タンクを有することを特徴とする船舶。
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