公开(公告)号：US06918356B2

公开(公告)日：2005-07-19

申请号：US10652824

申请日：2003-08-29

Applicant: Michael Alan Rowe ,  John Philip Goetsch

Inventor： Michael Alan Rowe ,  John Philip Goetsch

IPC: F22B35/00 ,  F22B35/18 ,  F22B37/38

CPC classification number: F22B35/18

Abstract: A method for controlling a steam boiler or oil heater for maximum fuel efficiency by systematically finding the most fuel-efficient combination of input control values. A characteristic multi-dimensional look-up table is created by temporarily operating the process at all the possible functional combined settings of a plurality of input operators and recording for each combination of settings the resulting output values of a plurality of process parameters, for example, steam flow, steam pressure, and exhaust composition. Input combinations resulting in either non-functional process or unacceptable output values are eliminated. Steam flow rate is the primary output control parameter. A selected value of steam flow rate is the primary control setpoint for the process. If several combinations of input values can cause the process to meet the primary control setpoint, the combination using the minimum fuel flow is selected as optimal. If the desired setpoint does not correspond exactly to discrete input values in the table, the correct input settings may be inferred by interpolation. Valves and dampers are dynamically controlled by output drive signals in an improved closed-loop control, using a function of the process output value and time to recalculate and adjust the drive signals.

Abstract translation: 一种用于通过系统地找到最省油的输入控制值组合来控制蒸汽锅炉或油加热器的最大燃料效率的方法。 通过在多个输入操作符的所有可能的功能组合设置处临时操作该过程来创建特征多维查找表，并且针对每个组合设置记录多个处理参数的所得到的输出值，例如， 蒸汽流，蒸汽压力和排气组成。 消除了导致非功能过程或不可接受的输出值的输入组合。 蒸汽流量是主要的输出控制参数。 蒸汽流量的选定值是该过程的主要控制设定值。 如果输入值的几个组合可能导致过程达到主要控制设定值，则选择使用最小燃油流量的组合为最佳。 如果所需的设定值与表中的离散输入值不完全对应，则可以通过插值推断正确的输入设置。 阀门和阻尼器由改进的闭环控制中的输出驱动信号动态控制，使用过程输出值和时间的函数来重新计算和调整驱动信号。