유해 물질을 포함하는 탱크 내에서 작업을 수행하기 위한 방법

• Main Authors: GILLORY RONALD, DAILY JOSEPH A, CHEUVRONT DAVID L, CASSIMATIS DAVID JOHN, LOVELACE JAMES TODD, MEYERS JOHN W
• Format: Patent
• Language: Korean
• Published: 21.04.2020
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

에너지 물질을 포함하는 탱크 내에서 선택된 작업을 수행하는 방법은 마커 검출기, 제어 유닛, 전력 공급부, 추진 시스템, 및 본질적으로 안전한 인클로저를 포함하는 본질적으로 안전한 이동식 플랫폼을 사용한다. 본질적으로 안전한 인클로저는 본질적으로 안전한 인클로저의 내측에서 일어나는 스파크가 본질적으로 안전한 인클로저의 외부로 지나가는 것을 방지한다. 이동식 플랫폼의 모든 스파크 발생 구성요소는 본질적으로 안전한 인클로저 내측에 위치된다. 본 방법은 이동식 플랫폼을 탱크 내로 하강시키는 단계, 이동식 플랫폼을 에너지 물질 내에 적어도 부분적으로 침지시키는 단계, 및 마커 검출기를 이용하여 마커를 검출하는 단계를 포함한다. 이동식 플랫폼이 탱크 내에 있는 동안 어떠한 능동형 물리적 캐리어도 이동식 플랫폼을 탱크 외부의 물체에 연결하지 않는다. A method of retrieving a mobile platform (100) from a tank (10) at least partially filled with a non-conductive, energetic substance (12, 14), the method characterized by :- configuring the mobile platform (100) to include at least:- an enclosure (200),- at least one control unit (300) positioned inside the enclosure (200),- at least one propulsion system (400) positioned at least partially inside the enclosure (200),- at least one power supply (500) positioned inside the enclosure (200),- at least one retrieval system (700) disposed at least partially on the enclosure (200), the at least one retrieval system (700) including at least one buoyant body (702), an electrically conductive member (1130), and at least one tether (1100), the at least one tether (1100) having at least a portion that is not conductive, the at least one tether (1100) electrically isolating the at least one buoyant body (702) from the enclosure (200);- lowering the mobile platform (100) into the tank (10) using a deployment carrier (50, 764, 780);- submerging the enclosure (200) in a non-conductive, liquid energetic substance (12);- moving the mobile platform (100) using the at least one propulsion system (400) to perform at least one task in the tank (10);- releasing the buoyant body (702) to convey the at least one tether (1100) toward a surface (1116) of the non-conductive, liquid energetic substance (12);- conveying an electrically conductive cable (1304) to the electrically conductive member (1130) of the mobile platform (100) using the at least one tether (1100);- electrically connecting a voltage neutralizing end (1306) of the electrically conductive cable (1304) to a voltage differential neutralizing body (1302) in a spark inhibiting ambient condition;- electrically connecting a mobile platform end (1308) of the electrically conductive cable (1304) to the electrically conductive member (1300) of the mobile platform (100) while the electrically conductive member (1300) is below the surface (1116) of the non-conductive, liquid energetic substance (12); and- retrieving the mobile platform (100) from inside to outside of the tank (10).