公开(公告)号：US4887431A

公开(公告)日：1989-12-19

申请号：US333482

申请日：1989-04-05

申请人： William J. Peet

发明人： William J. Peet

IPC分类号： F22G5/12

CPC分类号： F22G5/12

摘要： A method and apparatus for controlling superheater outlet temperature of a steam generator utilizes a feed-forward control signal to control a spray attemperator. The feed-forward control signal is developed as a difference between a selected flow rate for steam required by a turbine operated by the steam generator, and a measured flow rate of steam from a steam drum above the steam generator.

摘要翻译： 用于控制蒸汽发生器的过热器出口温度的方法和装置利用前馈控制信号来控制喷雾调温器。 前馈控制信号被开发为用于由蒸汽发生器操作的涡轮所需的蒸汽的选定流量与来自蒸汽发生器上方的蒸汽鼓的测量的蒸汽流量之间的差。

公开(公告)号：US5148775A

公开(公告)日：1992-09-22

申请号：US823503

申请日：1992-01-22

申请人： William J. Peet

发明人： William J. Peet

IPC分类号： F22D5/26

CPC分类号： F22D5/26

摘要： An improved feedwater control for drum type steam generators is provided in order to gain improved drum level control for drum type steam generators which are subjected to great load changes at high rates of change. The control system accounts for changes in the mass inventory within the circulation lop by monitoring and adjusting to changes in steam flow and drum pressure. Thus, during load changes, the drum level will remain constant.

摘要翻译： 提供了一种用于滚筒式蒸汽发生器的改进的给水控制装置，以便为鼓式蒸汽发生器获得改进的鼓级控制，其以高变化率承受极大的负载变化。 控制系统通过监测和调整蒸汽流量和鼓压力的变化来解释循环泵中的质量库存变化。 因此，在负载变化期间，鼓水平将保持恒定。

公开(公告)号：US4915306A

公开(公告)日：1990-04-10

申请号：US323578

申请日：1989-03-14

申请人： William J. Peet

发明人： William J. Peet

IPC分类号： F23K1/00 ,  F23N1/02

CPC分类号： F23N1/02 ,  F23K1/00 ,  F23K2201/10 ,  F23N2021/10 ,  F23N2039/02

摘要： A method of controlling the operation of a pulverizer includes detecting the type of fuel being supplied to the pulverizer. At least one characteristic of the fuel is determined by a combination of measurements and calculations. One characteristic is moisture content which distinguishes one type of fuel, in particular, one type of coal, from another. The feeding rate of the fuel to the pulverizer is selected from a curve which plots primary air flow against percentage of rating for the pulverizer. This curve is constant for the pulverizer despite the types of fuel used.

摘要翻译： 一种控制粉碎机操作的方法包括检测供应给粉碎机的燃料类型。 燃料的至少一个特性由测量和计算的组合确定。 一个特征是将一种类型的燃料，特别是一种类型的煤与另一种类型的煤区分开来。 燃料对粉碎机的进料速率选自曲线，该曲线绘制了主要空气流量与粉碎机的额定值百分比。 即使使用燃料类型，该曲线对于粉碎机是恒定的。