发明名称 |
Apparatus and method for break recovery in a paper machine or other system |
摘要 |
A method includes determining one or more setpoint changes for one or more actuators in a process control system. Determining the one or more setpoint changes includes making larger or more frequent setpoint changes when operating in a first mode and making smaller or less frequent setpoint changes when operating in a second mode. The method also includes outputting the one or more setpoint changes to the one or more actuators. The method could further include entering the first mode after a paper sheet has broken and been rethreaded through a paper machine. The method could also include entering the second mode (i) after a specified amount of time has elapsed since entering the first mode or (ii) after the first mode has been entered and a caliper profile of the paper sheet is within a specified threshold of a desired caliper profile.
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申请公布号 |
US7608169(B2) |
申请公布日期 |
2009.10.27 |
申请号 |
US20060501576 |
申请日期 |
2006.08.09 |
申请人 |
HONEYWELL ASCA INC. |
发明人 |
BACKSTROM JOHAN U.;STEWART GREGORY E. |
分类号 |
D21F11/00 |
主分类号 |
D21F11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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