INSPECTION DEVICE AND INSPECTION METHOD FOR EVAPORATION PIPE IN BOILER FURNACE

WIPO Patent Application WO/2010/058624

A1

Provided are an inspection device and an inspection method for evaporation pipes in a boiler furnace wherein the corrosion wastage of a plurality of evaporation pipes arranged contiguously to each other and extending in the vertical direction along the inner wall surface of the boiler furnace can be inspected precisely and efficiently over a wide range based on the surface profiles of the evaporation pipes measured by means of a laser displacement sensor.  On the surfaces of a plurality of evaporation pipes (4) extending in the vertical direction along the inner wall surface of the boiler furnace, a scan device (14), consisting of columns (20) erected and fixed by means of magnets (18), supporting frames (28) fixed to the columns (20) and supporting a displacement sensor (12) generating laser with which the surfaces of the evaporation pipes (4) are irradiated, and a moving mechanism (31) which moves the displacement sensor (12) in the axial direction of the evaporation pipes (4) with respect to the supporting frames (28), is provided, and furthermore a signal processing device (16), for evaluating corrosion wastage by calculating the wastage amounts of the evaporation pipes (4) from the differences between the cross-sectional surface shapes of the evaporation pipes (4) informed by signals from the displacement sensor (12) and a reference shape free from corrosion wastage, is provided.

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MATSUMOTO, Hirotoshi (C/O NAGASAKI Research & Development Center, MITSUBISHI HEAVY INDUSTRIES, LTD.,,717-1, Fukahori-machi 5-chome, Nagasaki-sh, Nagasaki 92, 〒8510392, JP)
松本　拓俊 (〒92 長崎県長崎市深堀町五丁目７１７番１号 三菱重工業株式会社長崎研究所内 Nagasaki, 〒8510392, JP)
IDA, Keiji (C/O NAGASAKI Shipyard & Machinery Works, MITSUBISHI HEAVY INDUSTRIES, LTD.,,1-1, Akunoura-machi, Nagasaki-sh, Nagasaki 10, 〒8508610, JP)
井田啓二 (〒10 長崎県長崎市飽の浦町１番１号 三菱重工業株式会社長崎造船所内 Nagasaki, 〒8508610, JP)

JP2009/062843

May 27, 2010

July 09, 2009

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MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
MATSUMOTO, Hirotoshi (C/O NAGASAKI Research & Development Center, MITSUBISHI HEAVY INDUSTRIES, LTD.,,717-1, Fukahori-machi 5-chome, Nagasaki-sh, Nagasaki 92, 〒8510392, JP)
松本　拓俊 (〒92 長崎県長崎市深堀町五丁目７１７番１号 三菱重工業株式会社長崎研究所内 Nagasaki, 〒8510392, JP)
IDA, Keiji (C/O NAGASAKI Shipyard & Machinery Works, MITSUBISHI HEAVY INDUSTRIES, LTD.,,1-1, Akunoura-machi, Nagasaki-sh, Nagasaki 10, 〒8508610, JP)

G01B21/08; F22B37/38; G01B11/24; G01N21/954

TAKAHASHI, MATSUMOTO & PARTNERS INTELLECTUAL PROPERTY CORP. et al. (Room 1003, Ambassador Roppongi Buildings,16-13, Roppongi 3-chome, Minato-k, Tokyo 32, 〒1060032, JP)

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