Liquid level detection and monitoring apparatus |
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| 申请号 | JP9055884 | 申请日 | 1984-05-07 | 公开(公告)号 | JPS60235019A | 公开(公告)日 | 1985-11-21 |
| 申请人 | Matsushita Electric Ind Co Ltd; | 发明人 | MIYAUCHI SHINJI; SAKA TATSUO; | ||||
| 摘要 | PURPOSE:To enhance the reliability of the titled apparatus, by comparing and discriminating a liquid level falling ratio by the operation from the flow amount signal of a flow sensor and that from the liquid level signal of a liquid level detecting sensor and operating an alarm or an emergency measuring means when the compared value exceeds an error tolerance value. CONSTITUTION:The flow sensor 3 attached to an outflow pipe 2 is connected to a container 1, of which the horizontal cross-sectional area is almost constant, so that the liquid stored in said container 1 is flowed out through an electromotive outflow valve 4 for controlling the flow amount of a fluid. A liquid level detecting sensor 5 for detecting the liquid level in the container 1 is additionally connected to said outflow pipe 2 and floats 7 each having a magnet 6 are arranged in the cylinder of said sensor 5 at predetermined intervals. When the float 7 is stopped at a definite position upon the reception of buoyance, the liquid level is detected by magnetic force. Further, an electromotive inflow valve 11 is connected to a liquid level monitor controller 10 and the inflow of the liquid is attained based on a control sequence. By this method, because a proper emergency measure is performed while the abnormality of the liquid detection is always monitored, reliability can be enhanced. | ||||||
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