Mitsubishi Jukogyo Kabushiki Kaisha

Chubu Electric Power Company, Inc.

Takeo Oomichi

Nagio Minami

Kengo Hamanaka

Yoshikazu Miyachi

Yoichiro Ban

Kiyoshi Uchida

Tadashi Nobushige

Tomoyoshi Ibe

Tsutomu Kurita

Kyoichi Yoshioka

Junji Nakayama

Kiyoshi Tachibana

Tomio Aoyama

Kyoichi Aizawa

Yukio Hukagawa

Kazuto Sawaragi

Mitsushi Ideo

A floor surface blasting apparatus is used for removing rustproof coating (blasting ) on a tank bottom surface to inspect weld lines on the bottom surface of high-capacity fuel tank. The floor surface blasting apparatus comprises a work arm which has weld line detecting sensors for detecting a weld line at the tip end and also has a blast head incorporating a suction nozzle; a work carriage which has the work arm and magnet devices incorporating a magnetic substance and travels arbitrarily on the floor surface; a transfer carriage which has a blast device for supplying blasting material to the blast head and travels arbitrarily on the floor surface; and a control device which controls the blast head so that the blast head is positioned on a weld line in accordance with the detection signal from the weld line detecting sensors and the signal of a position detecting device for detecting the position of the blast head and also makes the transfer carriage follow the work carriage.

Floor surface blasting apparatus

A floor surface blasting apparatus is used for removing rustproof coating (blasting) on a tank bottom surface to inspect weld lines on the bottom surface of high-capacity fuel tank. The floor surface blasting apparatus comprises a work arm which has weld line detecting sensors for detecting a weld line at the tip end and also has a blast head incorporating a suction nozzle; a work carriage which has the work arm and magnet devices incorporating a magnetic substance and travels arbitrarily on the floor surface; a transfer carriage which has a blast device for supplying blasting material to the blast head and travels arbitrarily on the floor surface; and a control device which controls the blast head so that the blast head is positioned on a weld line in accordance with the detection signal from the weld line detecting sensors and the signal of a position detecting device for detecting the position of the blast head and also makes the transfer carriage follow the work carriage.

A underwater mobile type inspection system is disclosed wherein said system comprises a multi-articulated manipulator with a probe attached at its tip end thereof. A pivot base supports the proximal end of the manipulator for free rotation and is provided with a propulsion device. An anchoring base is attached to the bottom of said pivot base via a pivot driving mechanism. An adhesion device and a mobile vehicle device are provided, both of which are mounted on the outer periphery of said anchoring base. The inspection system may be applicable to a defect finding operation, other inspecting procedures, cleaning and recovery operations of foreign materials in large-sized vessels, such as nuclear reactor pressure vessels, water pools and storage tanks etc.

Underwater mobile type inspection system

Growing community of inventors

Takasago, Japan

Takeo Oomichi