JP4148667B2

JP4148667B2 - Fluid transfer hose

Info

Publication number: JP4148667B2
Application number: JP2001307633A
Authority: JP
Inventors: 正若林; 哲島ノ江; 直行大岡; 行範本多
Original assignee: Yokohama Rubber Co Ltd
Current assignee: Yokohama Rubber Co Ltd
Priority date: 2000-10-06
Filing date: 2001-10-03
Publication date: 2008-09-10
Anticipated expiration: 2021-10-03
Also published as: JP2002181259A

Description

【０００１】
【発明の属する技術分野】
本発明は、海上で石油などの流体を移送する流体移送用ホースに関わり、更に詳しくは、作業員がホースの内部破損を容易に発見することができるようにした流体移送用ホースに関する。
【０００２】
【従来の技術】
石油などの流体を海上移送するのに用いられる流体移送用ホースは、ホースが破損して移送中の流体が海中に流出すると、大きな環境汚染に発展する恐れがある。そのため、ホースの破損をいち早く発見できる構造であることが必要不可欠である。
【０００３】
一般に、上記のような流体移送用ホースは、ホース内周側から、内面ゴム層、主補強層群、流出流体吸収層、補助補強層群、及び外面ゴム層を順次積層した構造になっている。主補強層群及び補助補強層群は、それぞれホース長手方向に対して傾斜した補強コードをゴム被覆してなる複数の補強層を、隣接する補強層が補強コードを交差させるようにして積層した構造になっており、主補強層群は内面ゴム層の内側を通過する流体に対する耐圧力層として作用するのに対して、補助補強層群は、主補強層群の破損により流出流体吸収層に流出した流体が外部に漏出するのを防ぐようにしている。
【０００４】
従来、上述した流体移送用ホースにおいて、主補強層群の破損により流体が流出流体吸収層に流出すると、補助補強層群がその流出流体の圧力を受けて、ホースの長手方向や径方向に伸長変形したり、或いは周方向に捩じれ変形するようにした構造のホースが提案されている。これらのホースでは、外面ゴム層の表面に複数のライン（ストライプ）が設けられている。それらのラインが補助補強層群の伸長変形や捩じれ変形により変形する。そのラインの変形を目視により作業員が発見することにより、移送中の流体が海中に流出する前に主補強層群の破損を知ることができるようになっている。
【０００５】
しかしながら、流体移送用ホースは、数百ｍにわたって接続されるため、補助補強層群を上記のように変形する構成にしても、遠方からの目視では作業員がラインの変形を見落とすことがある。しかも、夜間の作業ではそれを確認することが極めて難しい。
【０００６】
【発明が解決しようとする課題】
本発明の目的は、遠方からあるいは夜間であっても作業員が容易かつ確実に主補強層群の破損を見つけることが可能な流体移送用ホースを提供することにある。
【０００７】
【課題を解決するための手段】
上記目的を達成するため本発明の流体移送用ホースは、ホース本体に、主補強層群の破損または該主補強層群の破損により流出流体吸収層に流出した流体の圧力により切断する導電体と、該導電体に接続されかつ導電体の切断により警報を発する警報手段とを設け、この警報手段が、導電体の切断により点灯するライト、導電体の切断により消灯するライト、導電体の切断により点灯するライトと消灯するライト、前記導電体の切断により点灯するライトと消灯するライト、前記導電体の切断により音波を発信する発信器、または、前記導電体の切断により電磁波の信号を発信する発信器およびこの発信器の発信信号を受信する受信機のいずれかであることを要旨とするものである。
また、本発明の別の流体移送用ホースは、ホース本体に、主補強層群の破損または該主補強層群の破損により流出流体吸収層に流出した流体の圧力により抵抗値が変化する導電体と、該導電体に接続されかつ導電体の抵抗値の変化により警報を発する警報手段とを設け、この警報手段が、導電体の抵抗値の増加により点灯するライト、導電体の抵抗値の増加により消灯するライト、導電体の抵抗値の増加により点灯するライトと消灯するライト、前記導電体の抵抗値の増加により音波を発信する発信器、または、前記導電体の抵抗値の増加により電磁波の信号を発信する発信器およびこの発信器の発信信号を受信する受信機のいずれかであることを要旨とするものである。
また、本発明の別の流体移送用ホースは、ホース本体に、主補強層群の破損または該主補強層群の破損により流出流体吸収層に流出した流体の圧力により抵抗値が変化する導電体と、該導電体に接続されかつ導電体の抵抗値の変化により警報を発する警報手段とを設け、導電体を導電性ゴムから構成し、警報手段を、導電体の抵抗値の減少により点灯するライト、導電体の抵抗値の減少により消灯するライト、導電体の抵抗値の減少により点灯するライトと消灯するライト、前記導電体の抵抗値の減少により音波を発信する発信器、または、前記導電体の抵抗値の減少により電磁波の信号を発信する発信器およびこの発信器の発信信号を受信する受信機のいずれかにし、補助補強層群の補強層を、隣接する補強層がホース長手方向に対する傾斜方向を逆向きにして補強コードを交差させるようにして積層し、さらに、補助補強層群を主補強層群の破損により流出流体吸収層に流出した流体の圧力によりホース長手方向に伸長変形する構造にして、導電体を流出流体吸収層よりホース径方向外側にホース周方向に延在するように固定し、或いは、補助補強層群を主補強層群の破損により流出流体吸収層に流出した流体の圧力によりホース径方向に伸長変形する構造にして、導電体を流出流体吸収層よりホース径方向外側にホース長手方向に延在するように固定し、或いは、補助補強層群を主補強層群の破損により流出流体吸収層に流出した流体の圧力によりホース長手方向に対して捩じれ変形する構造にして、導電体を流出流体吸収層よりホース径方向外側にホース周方向に延在するように固定したことを要旨とするものである。
【０００８】
上記構成によれば、主補強層群の破損に起因して導電体が切断または抵抗値が変化した際に、警報手段が警報を発するため、遠方からであっても作業員が主補強層群の破損を見落とすことがない。また、夜間であっても、作業員が容易かつ確実に主補強層群の破損を発見することができる。
【０００９】
【発明の実施の形態】
以下、本発明の構成について添付の図面を参照しながら詳細に説明する。
【００１０】
図１〜３において、本発明の液体移送用ホースＨ１は、ホース本体１とその両端に取り付けられた取付フランジ２とを備えている。
【００１１】
ホース本体１は、円管状の内面ゴム層３の外周側に主補強層群４が円管状に積層されている。主補強層群４の外周側に円管状の流出流体吸収層５を介して補助補強層群６が円管状に配設され、その外周側に円管状の外面ゴム層７が設けられている。
【００１２】
主補強層群４は、ホース長手方向に対して傾斜配列した有機繊維コードからなる補強コードをゴム被覆してなる複数の補強層を積層した構成になっている。隣接する補強層は、その補強コードがホース長手方向に対する傾斜方向を逆向きにして交差しており、主補強層群４は、内面ゴム層３の内側を移送される流体に対して耐圧力層及び耐張力層として作用している。主補強層群４の補強層の数としては、例えば、１４〜２０層にすることができる。
【００１３】
流出流体吸収層５は、スポンジゴムや発泡ポリウレタンなどから構成され、主補強層群４の破損により流出した流体を吸収する吸収層と、液体移送用ホースＨ１を浮遊させるフロート層としての両機能を備えている。
【００１４】
補助補強層群６は、ホース長手方向に対して傾斜配列した有機繊維コードからなる補強コードをゴム被覆してなる複数の補強層を積層した構成になっている。隣接する補強層は、その補強コードがホース長手方向に対する傾斜方向を逆向きにして交差しており、補助補強層群６は、主補強層群４の破損により流出流体吸収層５に流出した流体が外部に流出するのを防止する保護層の機能を有している。
【００１５】
補助補強層群６の補強層の補強コードは、ホース長手方向に対して一方側に傾斜する補強コードと他方側に傾斜する補強コードのホース長手方向に対する傾斜角度が略同一で、約５５°（静止角度）にしてあり、主補強層群４の破損による流出流体の圧力を補助補強層群６が受けても変形しない構造になっている。この補助補強層群６の補強層の数としては、例えば、２０層前後にすることができる。
【００１６】
主補強層群４の外周面４ａには、主補強層群４の破損により主補強層群４が後述するように伸長変形した際に切断可能な導電体９がホース長手方向に沿って延設され、その両端９ａ，９ｂが外周面４ａに固定されている。導電体９は、銅線などの金属線から構成されており、その長手方向において、少なくとも２箇所、好ましくは上述したように少なくとも両端９ａ，９ｂを主補強層群４の外周面４ａに固定するのがよい。
【００１７】
導電体９には、発光ダイオードからなるライト（警報手段）１０が並列に接続され、この導電体９とライト１０からなる接続体に抵抗１１と直流電源１２が直列に接続してある。ライト１０、抵抗１１、及び直流電源１２は、ホース本体１の端部１Ａに設けられた収容部１３に収容されている。図１では、ホースの異常状態の発見をより容易にするため、収容部１３をホース本体１の両方の端部１Ａに設け、各収容部１３にそれぞれライト１０、抵抗１１、及び直流電源１２を収容する例を示している。図３では、一方の収容部１３を省略している。
【００１８】
上述した流体移送用ホースＨによれば、主補強層群４が内面ゴム層３内を移送される流体により破損すると、その箇所における主補強層群４の補強コードが切断される。その切断により張力バランスを失った補強コードがその傾斜角度を小さくしながらホース長手方向に伸びる。それにより、主補強層群４がホース長手方向に伸長するため、導電体９が引っ張られて切断する。その結果、ライト１０に電流が流れて、ライト１０が点灯する。従って、遠方からあるいは夜間に作業員がそのライト１０の点灯により主補強層群４の破損を容易かつ確実に知ることができる。
【００１９】
図４は、本発明の流体移送用ホースの他の例を示す。この流体移送用ホースＨ２は、上述した図３の流体移送用ホースＨ１において、導電体９、ライト１０、電源１２を直列接続したものである。この流体移送用ホースＨ２では、点灯しているライト１０が導電体９の切断により消灯する。それを作業員が見つけて主補強層群４の破損を知ることができる。
【００２０】
図５は、本発明の流体移送用ホースの更に他の例を示し、この流体移送用ホースＨ３は、上述した図３の流体移送用ホースＨにおいて、上記導電体９と同様の切断可能な第２導電体１４と、発光ダイオードからなる第２ライト１５を更に加えたものである。直列に接続された第２導電体１４と第２ライト１５がライト１０と抵抗１１に並列接続されている。ホース長手方向に沿って延設された第２導電体１４の両端部１４ａ，１４ｂが主補強層群４の外周面４ａに固定されている。第２ライト１５は、収容部１３に設置される。ライト１０，１５は異なる色で発光するようになっている。
【００２１】
この流体移送用ホースＨ３は、導電体９，１４が切断されると、点灯していたライト１５が消灯し、ライト１０が点灯する。それを作業員が見つけて主補強層群４の破損を知ることができる。ライト１０，１５の発光色としては、例えば、ライト１０の発光色を赤、ライト１５の発光色を青にすることができる。
【００２２】
図３〜５の実施形態において、導電体９，１４は主補強層群４の外周面４ａに設けたが、それに代えて、主補強層群４の内周面や内面ゴム層３の外周面に固定してもよく、また内面ゴム層３の内周面に配置することも可能であり、流出流体吸収層５よりホース径方向内側に取り付けることができる。好ましくは、上述したように主補強層群４の外周面４ａに固定するのがよく、これによりホース製造時における導電体９の取付けを容易に行うことができる。
【００２３】
導電体９，１４全体、あるいは大部分をホース本体１に固定する場合には、導電体９，１４はホース長手方向に延在するように設ければよく、例えば、螺旋状にして固定することもできる。導電体９，１４は、主補強層群４が伸長した際に切断可能であれば、いずれの配置構造を採用してもよい。
【００２４】
また、補助補強層群６は、主補強層群から流出した流体の圧力を受けてホースの長手方向や径方向に伸長変形したり、或いはホース周方向に捩じれ変形する、後述する構造であってもよい。
【００２５】
図６は、本発明の流体移送用ホースの更に他の例を示す。この流体移送用ホースＨ４は、図３に示す流体移送用ホースＨ１において、導電体９を補助補強層群６の内周面６ａに固定したものである。また、補助補強層群６の補強層の補強コードが、ホース長手方向に対する傾斜角度を大きく（約５６〜８６°）してあり、主補強層群４の破損による流出流体の圧力を補助補強層群６が受けると、補強コードが傾斜角度を小さくしながらホース長手方向に伸びることにより、補助補強層群６がホース長手方向に伸長変形するようになっている。この補助補強層群６の伸長により、導電体９が切断されるようにしている。
【００２６】
図４，５に示す流体移送用ホースＨ２，Ｈ３においても、図６同様に補助補強層群６をホース長手方向に伸長変形する構造にし、その補助補強層群６の内周面６ａに導電体９あるいは導電体９，１５を固定することができる。
【００２７】
このようにホース長手方向に伸長する構造にした補助補強層群６に導電体９あるいは導電体９，１５を設置することよっても、ライト１０が点灯または消灯、あるいは点灯していたライト１５が消灯し、ライト１０が点灯するので、作業員が主補強層群４の破損を容易かつ確実に見つけることができる。
【００２８】
図７〜９は、本発明の流体移送用ホースの更に他の例を示す。これらの流体移送用ホースＨ５，Ｈ６，Ｈ７では、図６の流体移送用ホースＨ４において、補助補強層群６を上述したホース長手方向に伸長する構造に代えて、ホース径方向に伸長する構造にしたものである。
【００２９】
この補助補強層群６は、補強層の補強コードが、ホース長手方向に対する傾斜角度を上記より小さく（約０〜５４°）してあり、主補強層群４の破損による流出流体の圧力を補助補強層群６が受けると、補強コードがホース長手方向に伸び切った後、補強層がホース径方向に伸長することにより、補助補強層群６がホース径方向に伸びるようになっている。
【００３０】
図７の流体移送用ホースＨ５は、図３と同じ回路構成であり、導電体９がホース径方向に伸びる構造の補助補強層群６の内周面６ａに沿って螺旋状に巻回され、その両端９ａ，９ｂを含めた複数箇所が内周面６ａに固定されている。補助補強層群６のホース径方向への伸長変形により導電体９が切断されると、ライト１０が点灯する。
【００３１】
図８の流体移送用ホースＨ６は、図４と同じ回路構成であり、導電体９がホース径方向に伸びる構造の補助補強層群６の内周面６ａに沿って螺旋状に巻回され、その両端９ａ，９ｂを含めた複数箇所が内周面６ａに固定してある。補助補強層群６のホース径方向への伸長により導電体９が切断されると、ライト１０が消灯する。
【００３２】
図９の流体移送用ホースＨ７は、図５と同じ回路構成であり、導電体９，１４がホース径方向に伸びる構造の補助補強層群６の内周面６ａに沿って螺旋状に巻回され、その両端９ａ，９ｂと１４ａ，１４ｂを含めた複数箇所が内周面６ａに固定されている。補助補強層群６のホース径方向への伸長変形により導電体９，１４が切断されると、点灯していたライト１５が消灯し、ライト１０が点灯する。
【００３３】
図７〜９の流体移送用ホースでは、上記実施形態において、導電体９，１４を螺旋状に巻回したが、単に周方向に延在するように巻き付けてもよい。
【００３４】
図１０〜１２は、本発明の流体移送用ホースの更に他の例を示す。これらの流体移送用ホースＨ８，Ｈ９，Ｈ１０は、図６に示した流体移送用ホースＨ４において、補助補強層群６をホース長手方向に伸長する構造に代えて、ホース長手方向に対して捩じれる構造にしたものである。
【００３５】
この補助補強層群６は、ホース長手方向に対して一方側に傾斜する補強層の補強コードと他方側に傾斜する補強層の補強コードのホース長手方向に対する傾斜角度が異なっており（例えば、一方側を５５°、他方側を６０°）、主補強層群４の破損による流出流体の圧力を補助補強層群６が受けると、ホース長手方向に伸びる一方側に傾斜した補強コードと他方側に傾斜した補強コードの伸び率の違いにより、補助補強層群６がホース長手方向に対して捩じれ変形するようになっている。
【００３６】
図１０の流体移送用ホースＨ８は、図３と同じ回路構成であり、導電体９がホース長手方向に対して捩じれる構造の補助補強層群６の内周面６ａに沿って、補助補強層群６の捩じれ方向と逆方向に螺旋状に巻回され、その両端９ａ，９ｂを含めた複数箇所が内周面６ａに固定してある。補助補強層群６の捩じれ変形により導電体９が切断されると、ライト１０が点灯する。
【００３７】
図１１の流体移送用ホースＨ９は、図４と同じ回路構成であり、導電体９がホース長手方向に対して捩じれる構造の補助補強層群６の内周面６ａに沿って、補助補強層群６の捩じれ方向と逆方向に螺旋状に巻回され、その両端９ａ，９ｂを含めた複数箇所が内周面６ａに固定されている。補助補強層群６の捩じれ変形により導電体９が切断されると、ライト１０が消灯する。
【００３８】
図１２の流体移送用ホースＨ１０は、図５と同じ回路構成であり、導電体９，１４がホース長手方向に対して捩じれる構造の補助補強層群６の内周面６ａに沿って、補助補強層群６の捩じれ方向と逆方向に螺旋状に巻回され、その両端９ａ，９ｂと１４ａ，１４ｂを含めた複数箇所が内周面６ａに固定してある。補助補強層群６の捩じれ変形により導電体９，１４が切断されると、点灯していたライト１５が消灯し、ライト１０が点灯する。
【００３９】
図７〜１２の実施形態において、導電体９，１４を補助補強層群６の内周面６ａに設けたが、それに代えて、補助補強層群６の外周面や外面ゴム層７の内周面に固定してもよく、また外面ゴム層７の外周面に配置することも可能であり、補助補強層群６を伸長または捩じれ変形可能にした流体移送用ホースでは、導電体９，１４を流出流体吸収層５よりホース径方向外側に取り付けることができる。好ましくは、上述したように補助補強層群６の内周面６ａに固定するのが、ホース製造時における導電体９，１４の取付けを容易にする上でよい。
【００４０】
本発明では、上述した実施形態において、導電体９，１４に金属線を用いた例を示したが、それに代えて、導電性ゴムを使用してもよい。その場合、導電体９，１４は切断されずに伸長して断面積が減少するため、抵抗値が増加する。それにより導電体９，１４を流れる電流が制限されるため、図３，７，１０の流体移送用ホースＨ１，Ｈ５，Ｈ８ではライト１０が点灯し、図４，８，１１の流体移送用ホースＨ２，Ｈ６，Ｈ９ではライト１０が消灯または明るさが暗くなり、また図５，９，１２の流体移送用ホースＨ３，Ｈ７，Ｈ１０では、点灯していたライト１５が消灯または明るさが暗くなる一方、ライト１０が点灯する。
【００４１】
図１３，１４は、本発明の流体移送用ホースの更に他の例を示す。図１３の流体移送用ホースＨ１１は、補助補強層群６がホース長手方向に伸長変形する構造にしてある。導電体９は、抵抗値が高い導電性ゴムから構成され、ホース周方向に沿って延在するようにして、補助補強層群６の内周面６ａに接着により固定されている。この流体移送用ホースＨ１１では、補助補強層群６がホース長手方向に伸長変形すると、導電性ゴムがホース長手方向に引っ張られてその断面積が大きくなる。その結果、導電性ゴムの抵抗値が減少し、流れる電流の量が増大するため、ライト１０が点灯する。
【００４２】
図１４の流体移送用ホースＨ１２は、補助補強層群６がホース径方向に伸長変形する構造になっている。上記と同様に抵抗値が高い導電性ゴムから構成された導電体９が、ホース長手方向に沿って延設され、かつ補助補強層群６の内周面６ａに固定されている。この流体移送用ホースＨ１２では、補助補強層群６がホース径方向に伸長変形すると、導電性ゴムがホース周方向に引っ張られてその断面積を大きくする。そのため、導電性ゴムの抵抗値が減少し、ライト１０が点灯する。
【００４３】
図１３の実施形態では、補助補強層群６をホース長手方向に伸長変形する構造にしたが、それに代えてホース長手方向に対して捩じれ変形する構造にしてもよい。これにより、ホースが捩じれ変形すると、導電性ゴムがホース捩じれ方向に張られてその断面積が大きくなり、ライト１０が点灯する。
【００４４】
図１３，１４の実施形態では、図４に示す回路構成を有する流体移送用ホースを例示したが、図３，５のような回路構成を有する流体移送用ホースであってもよい。即ち、導電性ゴムの抵抗値の減少によりライト１０を消灯させたり（図３に示す回路構成を有するもの）、あるいは導電性ゴムの抵抗値の減少によりライト１０を点灯させ、ライト１５を消灯させる（図５に示す回路構成を有するもの）ようにしてもよい。
【００４５】
図１５は、上述した導電体９，１４の他の例を示す。この導電体Ｘは、金属線または導電性ゴム部材Ｘ１間に、主補強層群４の伸長変形、あるいは補助補強層群６の伸長または捩じれ変形により切断あるいは離間可能なコネクターＸ２を接続したものである。このような構成の導電体Ｘも、本発明では好ましく用いることができる。
【００４６】
図１６に、収容部１３の取付構造の一例を示す。収容空間を有する透明樹脂カバー１７が、ホース本体１の表面１ａにシール部材１６を介してボルトとナットからなる固定手段１８により固定され、透明樹脂カバー１７内に海水が入らないように密封構造になっている。その透明樹脂カバー１７内にライト１０，１５、抵抗１１、直流電源１２が収容されている。透明樹脂カバー１７の両側に透明樹脂カバー１７より若干外周側に突出する保護カバー１９が固設され、衝突の際に透明樹脂カバー１７を保護するようになっている。
【００４７】
本発明において、上述した直流電源１２としては、太陽電池を好ましく用いることができる。主補強層群４の補強層に用いる補強コードは、上記実施形態では有機繊維コードを使用したが、それに代えてスチールコードを用いてもよい。主補強層群４及び補助補強層群６の補強層は、それぞれ補強コードが交差する２層の補強層を１組とし、偶数層となるように設けるのがよい。
【００４８】
上述した図３，５，７，９，１０，１２，１３，１４の流体移送用ホースでは、警報手段として、ライト１０に代えて、音波または電磁波の信号を発信する発信器を用いるようにしてもよい。電磁波の信号を発信する発信器を用いる場合には、それを受信する受信機を作業員が確認し易い場所に設けるものとする。
【００４９】
本発明は、当然のことながら、補助補強層群６を伸長または捩じれ変形可能な構造にした上述の流体移送用ホースにおいて、その外面ゴム層７の外周面に、補助補強層群６の伸長または捩じれ変形が発生した際に共に伸長または捩じれ変形して主補強層群４の破損を知らせるための複数のライン（ストライプ）を設けたものであってもよい。このように主補強層群４の破損を知らせる外面ゴム層７外周面のストライプと、本発明の導電体の切断または抵抗値の変化により警報を発する警報手段とを組み合わせることにより、主補強層群４の破損の発見を一層確実にすることができる。
【００５０】
【発明の効果】
上述したように本発明は、主補強層群の破損に起因して導電体が切断または抵抗値が変化した際に警報手段が警報を発するので、遠方からあるいは夜間であっても作業員が容易かつ確実に主補強層群の破損を見つけることができる。
【図面の簡単な説明】
【図１】本発明の流体移送用ホースの一例を示す斜視図である。
【図２】図１の流体移送用ホースの拡大断面図である。
【図３】図１の流体移送用ホースの回路図を含む説明図である。
【図４】本発明の流体移送用ホースの他の例における回路図を含む説明図である。
【図５】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図６】本発明の流体移送用ホースの更に他の例を示す断面図である。
【図７】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図８】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図９】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図１０】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図１１】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図１２】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図１３】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図１４】本発明の流体移送用ホースの更に他の例における回路図を含む説明図である。
【図１５】本発明の流体移送用ホースに用いられる導電体の他の例を示す説明図である。
【図１６】本発明の流体移送用ホースに用いられるライトや電池などを収容する収容部の取付構造を示す断面図である。
【符号の説明】
１ホース本体２取付フランジ
３内面ゴム層４主補強層群
４ａ外周面５流出流体吸収層
６補助補強層群６ａ内周面
７外面ゴム層９，１４，Ｘ導電体
１０，１５ライト（警報手段）１２電源
Ｈ１〜１２流体移送用ホースＸ１金属線または導電性ゴム部材
Ｘ２コネクター[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fluid transfer hose that transfers a fluid such as oil at sea, and more particularly, to a fluid transfer hose that allows an operator to easily detect internal breakage of the hose.
[0002]
[Prior art]
A fluid transfer hose used for transporting fluids such as oil to the sea may develop into a large environmental pollution if the hose breaks and the fluid being transported flows into the sea. Therefore, it is indispensable to have a structure that can quickly find a hose breakage.
[0003]
Generally, the fluid transfer hose as described above has a structure in which an inner rubber layer, a main reinforcing layer group, an outflow fluid absorbing layer, an auxiliary reinforcing layer group, and an outer rubber layer are sequentially laminated from the inner peripheral side of the hose. . The main reinforcing layer group and the auxiliary reinforcing layer group each have a structure in which a plurality of reinforcing layers formed by rubber covering reinforcing cords inclined with respect to the longitudinal direction of the hose are laminated so that adjacent reinforcing layers intersect with the reinforcing cords The main reinforcing layer group acts as a pressure-resistant layer against the fluid that passes inside the inner rubber layer, whereas the auxiliary reinforcing layer group flows out to the outflow fluid absorbing layer due to the damage of the main reinforcing layer group. The leaked fluid is prevented from leaking outside.
[0004]
Conventionally, in the above-described fluid transfer hose, when the fluid flows out to the outflow fluid absorption layer due to the breakage of the main reinforcement layer group, the auxiliary reinforcement layer group receives the pressure of the outflow fluid and extends in the longitudinal direction or the radial direction of the hose. There has been proposed a hose having a structure that is deformed or twisted in the circumferential direction. In these hoses, a plurality of lines (stripes) are provided on the surface of the outer rubber layer. These lines are deformed by extension deformation or torsional deformation of the auxiliary reinforcing layer group. By visually detecting the deformation of the line, the operator can know the breakage of the main reinforcing layer group before the fluid being transferred flows out into the sea.
[0005]
However, since the fluid transfer hose is connected over several hundred meters, even if the auxiliary reinforcing layer group is deformed as described above, the operator may overlook the deformation of the line when viewed from a distance. Moreover, it is extremely difficult to confirm it at night.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide a fluid transfer hose that allows an operator to easily and reliably find a damage to a main reinforcing layer group even from a distance or at night.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a fluid transfer hose according to the present invention includes a conductor that is cut in a hose body by a pressure of a fluid that has flowed into an outflow fluid absorbing layer due to a breakage of the main reinforcement layer group or a breakage of the main reinforcement layer group. and a warning means for issuing an alarm by cleavage of the connected and the conductor to the conductive member provided, the warning means, light which is turned by the cleavage of the conductor, lights turned off by the cutting of the conductor by cutting conductor Lights that are turned on and lights that are turned off, lights that are turned on and off when the conductor is cut, transmitters that emit sound waves when the conductor is cut, or electromagnetic waves that are sent when the conductor is cut And a receiver that receives a transmission signal of the transmitter.
Further, another fluid transfer hose of the present invention is a conductor in which the resistance value changes depending on the pressure of the fluid flowing out to the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group. And an alarm means that is connected to the conductor and issues an alarm when the resistance value of the conductor changes, the alarm means is a light that is turned on when the resistance value of the conductor increases, and an increase in the resistance value of the conductor Lights that are turned off due to an increase in the resistance value of the conductor, lights that are turned on and off due to an increase in the resistance value of the conductor, transmitters that emit sound waves due to an increase in the resistance value of the conductor, The gist of the present invention is that it is either a transmitter that transmits a signal or a receiver that receives a transmission signal of the transmitter.
Further, another fluid transfer hose of the present invention is a conductor in which the resistance value changes depending on the pressure of the fluid flowing out to the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group. And an alarm means that is connected to the conductor and issues an alarm when the resistance value of the conductor changes, the conductor is made of conductive rubber, and the alarm means is turned on when the resistance value of the conductor decreases. Lights, lights that turn off when the resistance value of the conductor decreases, lights that turn on and off when the resistance value of the conductor decreases, transmitters that emit sound waves when the resistance value of the conductor decreases, or the conductor Either a transmitter that transmits an electromagnetic wave signal due to a decrease in the resistance value of the body or a receiver that receives a signal transmitted from the transmitter, and the reinforcing layer of the auxiliary reinforcing layer group is adjacent to the hose longitudinal direction. Lean A structure in which the reinforcing cords are stacked so that the directions are reversed and the auxiliary reinforcing layer group is extended and deformed in the longitudinal direction of the hose by the pressure of the fluid flowing out to the outflowing fluid absorbing layer due to the damage of the main reinforcing layer group The conductor is fixed so as to extend in the hose circumferential direction outside the outflow fluid absorption layer from the outflow fluid absorption layer, or the auxiliary reinforcement layer group flows out to the outflow fluid absorption layer due to breakage of the main reinforcement layer group The conductor is stretched and deformed in the hose radial direction by the pressure of the conductor, and the conductor is fixed so as to extend in the hose longitudinal direction outside the outflow fluid absorbing layer in the hose radial direction, or the auxiliary reinforcing layer group is the main reinforcing layer group The conductor is twisted and deformed in the longitudinal direction of the hose due to the pressure of the fluid that has flowed into the spilled fluid absorption layer due to breakage of the hose. It is an summarized in that the sea urchin fixed.
[0008]
According to the above configuration, when the conductor is cut or the resistance value is changed due to the breakage of the main reinforcing layer group, the alarm means issues an alarm, so that the worker can operate the main reinforcing layer group even from a distance. Never overlook the damage. In addition, even at night, the worker can easily and reliably find the damage of the main reinforcing layer group.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.
[0010]
1-3, the liquid transfer hose H1 of the present invention includes a hose body 1 and mounting flanges 2 attached to both ends thereof.
[0011]
In the hose body 1, a main reinforcing layer group 4 is laminated in a tubular shape on the outer peripheral side of a tubular inner rubber layer 3. An auxiliary reinforcing layer group 6 is disposed in a circular shape on the outer peripheral side of the main reinforcing layer group 4 via a circular outflow fluid absorbing layer 5, and a circular outer surface rubber layer 7 is provided on the outer peripheral side thereof.
[0012]
The main reinforcing layer group 4 is configured by laminating a plurality of reinforcing layers formed by rubber-covering reinforcing cords made of organic fiber cords that are inclined with respect to the hose longitudinal direction. Adjacent reinforcing layers intersect with each other with their reinforcing cords inclined in the direction opposite to the longitudinal direction of the hose, and the main reinforcing layer group 4 is a pressure-resistant layer against the fluid transferred inside the inner rubber layer 3. And acting as a tensile strength layer. The number of reinforcing layers in the main reinforcing layer group 4 can be, for example, 14 to 20 layers.
[0013]
The outflow fluid absorption layer 5 is composed of sponge rubber, foamed polyurethane, or the like, and has both functions as an absorption layer that absorbs fluid that has flowed out due to the damage of the main reinforcing layer group 4 and a float layer that floats the liquid transfer hose H1. I have.
[0014]
The auxiliary reinforcing layer group 6 has a structure in which a plurality of reinforcing layers formed by rubber coating reinforcing cords made of organic fiber cords that are inclined with respect to the longitudinal direction of the hose are laminated. Adjacent reinforcing layers intersect with each other with their reinforcing cords inclined in the direction opposite to the longitudinal direction of the hose, and the auxiliary reinforcing layer group 6 is a fluid that has flowed out to the outflow fluid absorbing layer 5 due to damage of the main reinforcing layer group 4. Has a protective layer function to prevent the liquid from flowing out to the outside.
[0015]
The reinforcement cords of the reinforcement layers of the auxiliary reinforcement layer group 6 have substantially the same inclination angle with respect to the hose longitudinal direction of the reinforcement cords inclined to one side with respect to the hose longitudinal direction and about 55 ° ( The stationary reinforcing layer group 6 is not deformed even when the auxiliary reinforcing layer group 6 receives the pressure of the outflow fluid due to the damage of the main reinforcing layer group 4. The number of reinforcing layers in the auxiliary reinforcing layer group 6 can be, for example, about 20 layers.
[0016]
On the outer peripheral surface 4a of the main reinforcing layer group 4, a conductor 9 that can be cut when the main reinforcing layer group 4 expands and deforms as will be described later due to the damage of the main reinforcing layer group 4 extends along the longitudinal direction of the hose. The both ends 9a, 9b are fixed to the outer peripheral surface 4a. The conductor 9 is composed of a metal wire such as a copper wire, and at least two locations in the longitudinal direction, preferably at least both ends 9a and 9b are fixed to the outer peripheral surface 4a of the main reinforcing layer group 4 as described above. It is good.
[0017]
A light (alarm means) 10 made of a light emitting diode is connected in parallel to the conductor 9, and a resistor 11 and a DC power supply 12 are connected in series to the connection body made of the conductor 9 and the light 10. The light 10, the resistor 11, and the DC power source 12 are accommodated in an accommodation portion 13 provided at the end 1 </ b> A of the hose body 1. In FIG. 1, in order to make it easier to find the abnormal state of the hose, the accommodating portions 13 are provided at both ends 1 </ b> A of the hose body 1, and the lights 10, the resistors 11, and the DC power supply 12 are respectively provided in the accommodating portions 13. An example of housing is shown. In FIG. 3, one accommodation portion 13 is omitted.
[0018]
According to the fluid transfer hose H described above, when the main reinforcing layer group 4 is damaged by the fluid transferred through the inner rubber layer 3, the reinforcing cord of the main reinforcing layer group 4 at that location is cut. The reinforcing cord that has lost its tension balance due to the cutting extends in the longitudinal direction of the hose while reducing the inclination angle. Thereby, since the main reinforcing layer group 4 extends in the hose longitudinal direction, the conductor 9 is pulled and cut. As a result, a current flows through the light 10 and the light 10 is turned on. Therefore, the worker can easily and reliably know the breakage of the main reinforcing layer group 4 by turning on the light 10 from a distance or at night.
[0019]
FIG. 4 shows another example of the fluid transfer hose of the present invention. The fluid transfer hose H2 is obtained by connecting the conductor 9, the light 10, and the power source 12 in series in the fluid transfer hose H1 of FIG. 3 described above. In the fluid transfer hose H <b> 2, the lit light 10 is extinguished by cutting the conductor 9. An operator can find it and know the breakage of the main reinforcing layer group 4.
[0020]
FIG. 5 shows still another example of the fluid transfer hose of the present invention. This fluid transfer hose H3 is the same as the conductor 9 in the fluid transfer hose H shown in FIG. A two-conductor 14 and a second light 15 made of a light-emitting diode are further added. A second conductor 14 and a second light 15 connected in series are connected in parallel to the light 10 and the resistor 11. Both end portions 14 a and 14 b of the second conductor 14 extending along the longitudinal direction of the hose are fixed to the outer peripheral surface 4 a of the main reinforcing layer group 4. The second light 15 is installed in the housing portion 13. The lights 10 and 15 emit light in different colors.
[0021]
In the fluid transfer hose H3, when the conductors 9 and 14 are cut, the light 15 that has been turned on is turned off and the light 10 is turned on. An operator can find it and know the breakage of the main reinforcing layer group 4. As the light emission colors of the lights 10 and 15, for example, the light emission color of the light 10 can be red and the light emission color of the light 15 can be blue.
[0022]
3 to 5, the conductors 9 and 14 are provided on the outer peripheral surface 4 a of the main reinforcing layer group 4. Instead, the inner peripheral surface of the main reinforcing layer group 4 and the outer peripheral surface of the inner rubber layer 3 are used. It can be fixed to the inner peripheral surface of the inner rubber layer 3, and can be attached to the inner side in the hose radial direction from the outflow fluid absorbing layer 5. Preferably, as described above, it is preferable to fix to the outer peripheral surface 4a of the main reinforcing layer group 4, so that the conductor 9 can be easily attached at the time of manufacturing the hose.
[0023]
When the whole or most of the conductors 9 and 14 are fixed to the hose body 1, the conductors 9 and 14 may be provided so as to extend in the longitudinal direction of the hose. You can also. As long as the conductors 9 and 14 can be cut when the main reinforcing layer group 4 expands, any arrangement structure may be adopted.
[0024]
Further, the auxiliary reinforcing layer group 6 has a structure which will be described later, which receives the pressure of the fluid flowing out from the main reinforcing layer group and is deformed to be elongated or deformed in the longitudinal direction or radial direction of the hose or torsionally deformed in the hose circumferential direction. Also good.
[0025]
FIG. 6 shows still another example of the fluid transfer hose of the present invention. This fluid transfer hose H4 is obtained by fixing the conductor 9 to the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 in the fluid transfer hose H1 shown in FIG. Further, the reinforcing cord of the reinforcing layer of the auxiliary reinforcing layer group 6 has a large inclination angle (about 56 to 86 °) with respect to the hose longitudinal direction, and the pressure of the outflow fluid due to the breakage of the main reinforcing layer group 4 is controlled by the auxiliary reinforcing layer. When the group 6 is received, the auxiliary reinforcing layer group 6 is extended and deformed in the longitudinal direction of the hose by extending the reinforcing cord in the longitudinal direction of the hose while reducing the inclination angle. The conductor 9 is cut by the extension of the auxiliary reinforcing layer group 6.
[0026]
In the fluid transfer hoses H2 and H3 shown in FIGS. 4 and 5, the auxiliary reinforcing layer group 6 is extended and deformed in the longitudinal direction of the hose as in FIG. 6, and the conductor is provided on the inner peripheral surface 6a of the auxiliary reinforcing layer group 6. 9 or the conductors 9 and 15 can be fixed.
[0027]
Even if the conductor 9 or the conductors 9 and 15 are installed in the auxiliary reinforcing layer group 6 configured to extend in the longitudinal direction of the hose in this way, the light 10 is turned on or off, or the light 15 that has been turned on is turned off. In addition, since the light 10 is turned on, the worker can easily and reliably find the damage of the main reinforcing layer group 4.
[0028]
7 to 9 show still other examples of the fluid transfer hose of the present invention. In these fluid transfer hoses H5, H6, and H7, in the fluid transfer hose H4 in FIG. 6, instead of the structure in which the auxiliary reinforcing layer group 6 extends in the hose longitudinal direction described above, the structure extends in the hose radial direction. It is a thing.
[0029]
In this auxiliary reinforcing layer group 6, the reinforcing cord of the reinforcing layer has an inclination angle with respect to the longitudinal direction of the hose smaller than the above (about 0 to 54 °), and assists the pressure of the outflow fluid due to the damage of the main reinforcing layer group 4 When the reinforcing layer group 6 is received, the auxiliary reinforcing layer group 6 extends in the hose radial direction by extending the reinforcing cord in the hose radial direction after the reinforcing cord extends in the hose longitudinal direction.
[0030]
The fluid transfer hose H5 in FIG. 7 has the same circuit configuration as that in FIG. 3, and the conductor 9 is spirally wound along the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 having a structure extending in the hose radial direction. A plurality of locations including both ends 9a and 9b are fixed to the inner peripheral surface 6a. When the conductor 9 is cut by extension deformation of the auxiliary reinforcing layer group 6 in the hose radial direction, the light 10 is turned on.
[0031]
The fluid transfer hose H6 in FIG. 8 has the same circuit configuration as that in FIG. 4, and the conductor 9 is spirally wound along the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 having a structure extending in the hose radial direction. A plurality of locations including both ends 9a and 9b are fixed to the inner peripheral surface 6a. When the conductor 9 is cut by the extension of the auxiliary reinforcing layer group 6 in the hose radial direction, the light 10 is turned off.
[0032]
The fluid transfer hose H7 in FIG. 9 has the same circuit configuration as that in FIG. 5, and the conductors 9 and 14 are spirally wound along the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 having a structure extending in the hose radial direction. A plurality of locations including both ends 9a, 9b and 14a, 14b are fixed to the inner peripheral surface 6a. When the conductors 9 and 14 are cut by extension deformation of the auxiliary reinforcing layer group 6 in the hose radial direction, the light 15 that has been turned on is turned off and the light 10 is turned on.
[0033]
In the fluid transfer hose of FIGS. 7 to 9, the conductors 9 and 14 are spirally wound in the above-described embodiment, but may be wound so as to simply extend in the circumferential direction.
[0034]
10 to 12 show still another example of the fluid transfer hose of the present invention. These fluid transfer hoses H8, H9, and H10 are twisted with respect to the longitudinal direction of the hose instead of the structure that extends the auxiliary reinforcing layer group 6 in the longitudinal direction of the hose in the fluid transfer hose H4 shown in FIG. It is a structure.
[0035]
The auxiliary reinforcing layer group 6 is different in the inclination angle of the reinforcing cord inclined to one side with respect to the hose longitudinal direction and the reinforcing cord of the reinforcing layer inclined to the other side with respect to the hose longitudinal direction (for example, one side) When the auxiliary reinforcing layer group 6 receives the pressure of the outflow fluid due to the breakage of the main reinforcing layer group 4, the reinforcing cord inclined to one side extending in the longitudinal direction of the hose and the other side The auxiliary reinforcing layer group 6 is twisted and deformed in the longitudinal direction of the hose due to the difference in the elongation rate of the inclined reinforcing cords.
[0036]
The fluid transfer hose H8 of FIG. 10 has the same circuit configuration as that of FIG. 3, and the auxiliary reinforcing layer is formed along the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 having a structure in which the conductor 9 is twisted with respect to the longitudinal direction of the hose. The group 6 is spirally wound in a direction opposite to the twisting direction, and a plurality of positions including both ends 9a and 9b are fixed to the inner peripheral surface 6a. When the conductor 9 is cut by the torsional deformation of the auxiliary reinforcing layer group 6, the light 10 is turned on.
[0037]
The fluid transfer hose H9 of FIG. 11 has the same circuit configuration as that of FIG. 4, and the auxiliary reinforcing layer is formed along the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 having a structure in which the conductor 9 is twisted with respect to the longitudinal direction of the hose. The group 6 is spirally wound in a direction opposite to the twisting direction, and a plurality of locations including both ends 9a and 9b are fixed to the inner peripheral surface 6a. When the conductor 9 is cut by the torsional deformation of the auxiliary reinforcing layer group 6, the light 10 is turned off.
[0038]
The fluid transfer hose H10 in FIG. 12 has the same circuit configuration as that in FIG. The reinforcing layer group 6 is spirally wound in a direction opposite to the twisting direction, and a plurality of locations including both ends 9a, 9b and 14a, 14b are fixed to the inner peripheral surface 6a. When the conductors 9 and 14 are cut by the torsional deformation of the auxiliary reinforcing layer group 6, the light 15 that has been turned on is turned off and the light 10 is turned on.
[0039]
7 to 12, the conductors 9 and 14 are provided on the inner peripheral surface 6 a of the auxiliary reinforcing layer group 6. Instead, the outer peripheral surface of the auxiliary reinforcing layer group 6 and the inner peripheral surface of the outer rubber layer 7 are used. In the fluid transfer hose in which the auxiliary reinforcing layer group 6 can be extended or twisted and deformed, it is possible to fix the conductors 9 and 14 to the outer peripheral rubber layer 7. The spilled fluid absorbing layer 5 can be attached to the outside in the hose radial direction. Preferably, fixing to the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 as described above may facilitate attachment of the conductors 9 and 14 when manufacturing the hose.
[0040]
In the present invention, in the above-described embodiment, the example in which the metal wires are used for the conductors 9 and 14 is shown, but instead, conductive rubber may be used. In this case, since the conductors 9 and 14 are not cut and extend to reduce the cross-sectional area, the resistance value increases. Since the current flowing through the conductors 9 and 14 is thereby limited, the light 10 is turned on in the fluid transfer hoses H1, H5, and H8 of FIGS. In H2, H6, and H9, the light 10 is turned off or the brightness is darkened, and in the fluid transfer hoses H3, H7, and H10 in FIGS. On the other hand, the light 10 is turned on.
[0041]
13 and 14 show still another example of the fluid transfer hose of the present invention. The fluid transfer hose H11 in FIG. 13 has a structure in which the auxiliary reinforcing layer group 6 extends and deforms in the longitudinal direction of the hose. The conductor 9 is made of conductive rubber having a high resistance value, and is fixed to the inner peripheral surface 6a of the auxiliary reinforcing layer group 6 by adhesion so as to extend along the circumferential direction of the hose. In the fluid transfer hose H11, when the auxiliary reinforcing layer group 6 extends and deforms in the hose longitudinal direction, the conductive rubber is pulled in the hose longitudinal direction, and the cross-sectional area thereof increases. As a result, the resistance value of the conductive rubber decreases and the amount of current flowing increases, so that the light 10 is turned on.
[0042]
The fluid transfer hose H12 of FIG. 14 has a structure in which the auxiliary reinforcing layer group 6 extends and deforms in the hose radial direction. Similar to the above, a conductor 9 made of conductive rubber having a high resistance value extends along the longitudinal direction of the hose and is fixed to the inner peripheral surface 6 a of the auxiliary reinforcing layer group 6. In the fluid transfer hose H12, when the auxiliary reinforcing layer group 6 extends and deforms in the hose radial direction, the conductive rubber is pulled in the hose circumferential direction to increase its cross-sectional area. Therefore, the resistance value of the conductive rubber is reduced and the light 10 is turned on.
[0043]
In the embodiment of FIG. 13, the auxiliary reinforcing layer group 6 has a structure that extends and deforms in the longitudinal direction of the hose, but may be configured to be twisted and deformed in the longitudinal direction of the hose instead. Accordingly, when the hose is twisted and deformed, the conductive rubber is stretched in the direction of twisting the hose, the cross-sectional area thereof is increased, and the light 10 is turned on.
[0044]
In the embodiment of FIGS. 13 and 14, the fluid transfer hose having the circuit configuration shown in FIG. 4 is illustrated, but the fluid transfer hose having the circuit configuration of FIGS. That is, the light 10 is turned off by reducing the resistance value of the conductive rubber (having the circuit configuration shown in FIG. 3), or the light 10 is turned on by reducing the resistance value of the conductive rubber, and the light 15 is turned off. (The circuit configuration shown in FIG. 5) may be used.
[0045]
FIG. 15 shows another example of the conductors 9 and 14 described above. This conductor X has a metal wire or a conductive rubber member X1 connected with a connector X2 that can be cut or separated by extension deformation of the main reinforcing layer group 4 or extension or twisting deformation of the auxiliary reinforcing layer group 6. is there. The conductor X having such a configuration can also be preferably used in the present invention.
[0046]
In FIG. 16, an example of the attachment structure of the accommodating part 13 is shown. A transparent resin cover 17 having a housing space is fixed to the surface 1a of the hose body 1 by a fixing means 18 including a bolt and a nut via a seal member 16 so that seawater does not enter the transparent resin cover 17. It has become. Lights 10 and 15, a resistor 11, and a DC power supply 12 are accommodated in the transparent resin cover 17. Protective covers 19 that protrude slightly outward from the transparent resin cover 17 are fixed on both sides of the transparent resin cover 17 so as to protect the transparent resin cover 17 in the event of a collision.
[0047]
In the present invention, a solar cell can be preferably used as the DC power source 12 described above. The reinforcing cord used for the reinforcing layer of the main reinforcing layer group 4 is an organic fiber cord in the above embodiment, but a steel cord may be used instead. The reinforcing layers of the main reinforcing layer group 4 and the auxiliary reinforcing layer group 6 are preferably provided so as to be an even layer with two reinforcing layers intersecting with each other as a set.
[0048]
In the fluid transfer hose shown in FIGS. 3, 5, 7, 9, 10, 12, 13, and 14 described above, a transmitter that transmits a sound wave or electromagnetic wave signal is used as an alarm means instead of the light 10. Also good. When a transmitter that transmits an electromagnetic wave signal is used, a receiver that receives the signal is provided in a place where it is easy for an operator to confirm.
[0049]
Naturally, in the above-described fluid transfer hose in which the auxiliary reinforcing layer group 6 has a structure that can be extended or twisted and deformed, the auxiliary reinforcing layer group 6 extends or is formed on the outer peripheral surface of the outer rubber layer 7. A plurality of lines (stripes) may be provided for notifying the main reinforcing layer group 4 of breakage by extending or twisting together when twisting deformation occurs. Thus, the main reinforcing layer group is obtained by combining the stripe on the outer peripheral surface of the outer rubber layer 7 notifying the breakage of the main reinforcing layer group 4 and alarm means for issuing an alarm by cutting the conductor or changing the resistance value of the present invention. 4 can be detected more reliably.
[0050]
【The invention's effect】
As described above, according to the present invention, since the alarm means gives an alarm when the conductor is cut or the resistance value is changed due to the damage of the main reinforcing layer group, it is easy for the worker even from a distance or at night. In addition, it is possible to surely find a failure of the main reinforcing layer group.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a fluid transfer hose according to the present invention.
FIG. 2 is an enlarged cross-sectional view of the fluid transfer hose of FIG.
3 is an explanatory view including a circuit diagram of the fluid transfer hose of FIG. 1; FIG.
FIG. 4 is an explanatory view including a circuit diagram in another example of the fluid transfer hose of the present invention.
FIG. 5 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 6 is a cross-sectional view showing still another example of the fluid transfer hose of the present invention.
FIG. 7 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 8 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 9 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 10 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 11 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 12 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 13 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 14 is an explanatory view including a circuit diagram in still another example of the fluid transfer hose of the present invention.
FIG. 15 is an explanatory view showing another example of a conductor used in the fluid transfer hose of the present invention.
FIG. 16 is a cross-sectional view showing a mounting structure of a housing portion that houses a light, a battery, or the like used in the fluid transfer hose of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hose body 2 Mounting flange 3 Internal rubber layer 4 Main reinforcement layer group 4a Outer peripheral surface 5 Outflow fluid absorption layer 6 Auxiliary reinforcement layer group 6a Inner peripheral surface 7 Outer rubber layer 9, 14, X Conductor 10, 15 Light (alarm means 12) Power supply H1-12 Hose for fluid transfer X1 Metal wire or conductive rubber member X2 Connector

Claims

From the hose inner peripheral side, it has a hose body in which an inner rubber layer, a main reinforcing layer group, an outflow fluid absorbing layer, an auxiliary reinforcing layer group, and an outer rubber layer are sequentially laminated, and the main reinforcing layer group is arranged in the hose longitudinal direction. a plurality of reinforcing layers of reinforcing cords formed by rubberized inclined against, a configuration in which a reinforcing layer adjacent the laminated so as to intersect the reinforcing cords, said auxiliary reinforcing layer groups, the reinforcing cords rubberized In the fluid transfer hose having a configuration in which a plurality of reinforcing layers are laminated, the pressure of the fluid that has flowed into the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group in the hose body a conductor cutting by, connected to the conductive member and provided with alarm means for issuing an alarm by cleavage of the conductor, the warning means, light which is turned by the cleavage of the conductor, the cutting of the conductor Lights to be turned on, lights that are turned on and off when the conductor is cut, transmitters that transmit sound waves by cutting the conductors, or transmitters that transmit electromagnetic wave signals by cutting the conductors and transmission A fluid transfer hose that is one of the receivers that receives the transmission signal of the vessel .

The fluid transfer hose according to claim 1, wherein the conductor to be cut is made of a metal wire.

The conductor to be cut is disconnected from the metal wire or / and the conductive rubber member by the pressure of the fluid that has flowed out to the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group. The fluid transfer hose according to claim 1, wherein a connector for connecting is connected.

From the hose inner peripheral side, it has a hose body in which an inner rubber layer, a main reinforcing layer group, an outflow fluid absorbing layer, an auxiliary reinforcing layer group, and an outer rubber layer are sequentially laminated, and the main reinforcing layer group is arranged in the hose longitudinal direction. a plurality of reinforcing layers of reinforcing cords formed by rubberized inclined against, a configuration in which a reinforcing layer adjacent the laminated so as to intersect the reinforcing cords, said auxiliary reinforcing layer groups, the reinforcing cords rubberized In the fluid transfer hose having a configuration in which a plurality of reinforcing layers are laminated, the pressure of the fluid that has flowed into the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group in the hose body There is provided a conductor whose resistance value is changed by the above and an alarm means which is connected to the conductor and issues an alarm when the resistance value of the conductor changes , and the alarm means is turned on when the resistance value of the conductor increases. Light A light that turns off when the resistance value of the conductor increases, a light that turns on and off when the resistance value of the conductor increases, a transmitter that emits sound waves when the resistance value of the conductor increases, or the conductive material A fluid transfer hose which is one of a transmitter for transmitting an electromagnetic wave signal by an increase in body resistance and a receiver for receiving a transmission signal of the transmitter .

The fluid transfer hose according to claim 4, wherein the conductor whose resistance value changes is made of conductive rubber.

The fluid transfer hose according to any one of claims 1 to 5, wherein the conductor is fixed so as to extend in the hose longitudinal direction on the inner side in the hose radial direction from the outflow fluid absorbing layer.

The reinforcing layer of the auxiliary reinforcing layer groups, together with the reinforcing layer adjacent stacked so as to intersect the reinforcing cords in the inclination direction with respect to the hose longitudinal direction opposite said main reinforcing layer group said auxiliary reinforcing layer group The conductor is stretched and deformed in the hose longitudinal direction by the pressure of the fluid that has flowed out into the spilled fluid absorbing layer due to breakage, and the conductor is fixed so as to extend in the hose longitudinal direction outside the spilled fluid absorbing layer in the hose radial direction. The fluid transfer hose according to any one of claims 1 to 5 .

The reinforcing layer of the auxiliary reinforcing layer groups, together with the reinforcing layer adjacent stacked so as to intersect the reinforcing cords in the inclination direction with respect to the hose longitudinal direction opposite said main reinforcing layer group said auxiliary reinforcing layer group The conductor is stretched and deformed in the hose radial direction due to the pressure of the fluid that has flowed out into the outflow fluid absorption layer due to breakage of the fluid, and the conductor is fixed so as to extend in the hose circumferential direction outward from the outflow fluid absorption layer. The fluid transfer hose according to any one of claims 1 to 5 .

The reinforcing layer of the auxiliary reinforcing layer groups, together with the reinforcing layer adjacent stacked so as to intersect the reinforcing cords in the inclination direction with respect to the hose longitudinal direction opposite said main reinforcing layer group said auxiliary reinforcing layer group The conductor is twisted and deformed in the longitudinal direction of the hose due to the pressure of the fluid that has flowed out into the spilled fluid absorbing layer, and the conductor is twisted in the twisted direction of the auxiliary reinforcing layer group outside the spilled fluid absorbing layer in the hose radial direction. The fluid transfer hose according to claim 1, wherein the fluid transfer hose is fixed spirally in the opposite direction.

From the hose inner peripheral side, it has a hose body in which an inner rubber layer, a main reinforcing layer group, an outflow fluid absorbing layer, an auxiliary reinforcing layer group, and an outer rubber layer are sequentially laminated, and the main reinforcing layer group is arranged in the hose longitudinal direction. a plurality of reinforcing layers of reinforcing cords formed by rubberized inclined against, a configuration in which a reinforcing layer adjacent the laminated so as to intersect the reinforcing cords, said auxiliary reinforcing layer groups, the reinforcing cords rubberized In the fluid transfer hose having a configuration in which a plurality of reinforcing layers are laminated, the pressure of the fluid that has flowed into the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group in the hose body a conductor resistance value is changed by, connected to the conductive member and provided with alarm means for issuing an alarm by a change in the resistance of the conductor, the reinforcing layer of the auxiliary reinforcing layer group, reinforcing layer adjacent In the longitudinal direction of the hose In the longitudinal direction of the hose, the auxiliary reinforcing layer group is laminated in such a manner that the reinforcing cords are crossed so that the inclined direction is reversed, and the auxiliary reinforcing layer group is caused by the pressure of the fluid flowing out to the outflowing fluid absorbing layer due to the breakage of the main reinforcing layer group The conductor having a variable resistance value is made of conductive rubber, and the conductor is fixed so as to extend in the hose circumferential direction outside the spilled fluid absorbing layer in the hose radial direction , The warning means is a light that is turned on when the resistance value of the conductor is reduced, a light that is turned off when the resistance value of the conductor is reduced, a light that is turned on when the resistance value of the conductor is reduced, and a light that is turned off. Transmitter that emits sound wave due to decrease in resistance value of body, transmitter that transmits electromagnetic wave signal due to decrease in resistance value of conductor, and transmission signal of this transmitter Fluid-transfer hose is either Shin machine.

From the hose inner peripheral side, it has a hose body in which an inner rubber layer, a main reinforcing layer group, an outflow fluid absorbing layer, an auxiliary reinforcing layer group, and an outer rubber layer are sequentially laminated, and the main reinforcing layer group is arranged in the hose longitudinal direction. a plurality of reinforcing layers of reinforcing cords formed by rubberized inclined against, a configuration in which a reinforcing layer adjacent the laminated so as to intersect the reinforcing cords, said auxiliary reinforcing layer groups, the reinforcing cords rubberized In the fluid transfer hose having a configuration in which a plurality of reinforcing layers are laminated, the pressure of the fluid that has flowed into the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group in the hose body a conductor resistance value is changed by, connected to the conductive member and provided with alarm means for issuing an alarm by a change in the resistance of the conductor, the reinforcing layer of the auxiliary reinforcing layer group, reinforcing layer adjacent In the longitudinal direction of the hose The reinforcing cords are stacked so that the reinforcing cords cross each other with the inclined direction to be reversed, and the auxiliary reinforcing layer group is hose radial direction by the pressure of the fluid that flows out to the outflow fluid absorbing layer due to the breakage of the main reinforcing layer group The conductor having a variable resistance value is made of a conductive rubber, and the conductor is fixed so as to extend in the hose longitudinal direction outside the spilled fluid absorbing layer in the hose radial direction , The warning means is a light that is turned on when the resistance value of the conductor is reduced, a light that is turned off when the resistance value of the conductor is reduced, a light that is turned on when the resistance value of the conductor is reduced, and a light that is turned off. Transmitter that emits sound wave due to decrease in resistance value of body, transmitter that transmits electromagnetic wave signal due to decrease in resistance value of conductor, and transmission signal of this transmitter Fluid-transfer hose is either Shin machine.

From the hose inner peripheral side, it has a hose body in which an inner rubber layer, a main reinforcing layer group, an outflow fluid absorbing layer, an auxiliary reinforcing layer group, and an outer rubber layer are sequentially laminated, and the main reinforcing layer group is arranged in the hose longitudinal direction. a plurality of reinforcing layers of reinforcing cords formed by rubberized inclined against, a configuration in which a reinforcing layer adjacent the laminated so as to intersect the reinforcing cords, said auxiliary reinforcing layer groups, the reinforcing cords rubberized In the fluid transfer hose having a configuration in which a plurality of reinforcing layers are laminated, the pressure of the fluid that has flowed into the outflow fluid absorbing layer due to the damage of the main reinforcing layer group or the damage of the main reinforcing layer group in the hose body a conductor resistance value is changed by, connected to the conductive member and provided with alarm means for issuing an alarm by a change in the resistance of the conductor, the reinforcing layer of the auxiliary reinforcement layer group, reinforcing layer adjacent In the longitudinal direction of the hose In the longitudinal direction of the hose, the auxiliary reinforcing layer group is laminated in such a manner that the reinforcing cords are crossed so that the inclined direction is reversed, and the auxiliary reinforcing layer group is caused by the pressure of the fluid flowing out to the outflowing fluid absorbing layer due to the breakage of the main reinforcing layer group The conductor whose resistance value changes is composed of conductive rubber, and the conductor is fixed so as to extend in the hose circumferential direction outside the outflow fluid absorbing layer in the hose radial direction. The alarm means is a light that is turned on when the resistance value of the conductor is reduced, a light that is turned off when the resistance value of the conductor is reduced, a light that is turned on and off when the resistance value of the conductor is reduced, A transmitter that transmits sound waves by decreasing the resistance value of the conductor, or a transmitter that transmits electromagnetic wave signals by decreasing the resistance value of the conductor and a transmission signal of the transmitter Fluid-transfer hose which is either of a receiver signal to.