PROBLEM TO BE SOLVED: To provide a hydraulic elevator capable of surely detecting abnormality on a pipeline.SOLUTION: A hydraulic elevator comprises: a car 1 which is lifted up and down in a hoistway 100; a hydraulic jack 2 for lifting the car 1; a power unit 3 for transmitting and receiving oil between it and the hydraulic jack 2; a pipe 4 coupled to the hydraulic jack 2 and power unit 3, and in which oil flows; a pipe corrosion detector 5 disposed on the pipe 4, transmitting a guide wave to the pipe 4 and receiving reflection wave from the pipe 4 for detecting a thickness-reduced part of the pipe 4 due to corrosion; and a notification device 6 for notifying an information center 200 of pipe corrosion information indicating corrosion of the pipe 4 when the pipe corrosion detector 5 detects the thickness-reduced part of the pipe 4.
【課題】配管の異常をより確実に検出することができる油圧エレベータを得る。【解決手段】昇降路100を昇降するかご1と、かご1を支持し、かご1を昇降させる油圧ジャッキ2と、油圧ジャッキ2との間で油を送受するパワーユニット3と、油圧ジャッキ2とパワーユニット3とに接続され、油が流れる配管4と、配管4に設けられ、配管4にガイド波を送信し配管4からの反射波を受信することによって、腐食による配管4の減肉部を検出する配管腐食検出装置5と、配管腐食検出装置5が配管4の減肉部を検出した場合に、配管4の腐食を示す配管腐食情報を情報センタ200に通報する通報装置6とを備えている。【選択図】図1
HYDRAULIC ELEVATOR
油圧エレベータ
2015-08-24
Patent
Electronic Resource
Japanese
IPC: | B66B Aufzüge , ELEVATORS |
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