Woodward 9907-167 数字调速控制器 可使机器转速保持定值

9907-167

调速器用于减小某些机器非周期性速度波动的自动调节装置。全程调速器的基本结构可使机器转速保持定值或接近设定值。水轮机、汽轮机、燃气轮机和内燃机等与电动机不同，其输出的力矩不能自动适应本身的载荷变化，因而当载荷变动时，由Woodward 9907-167 数字调速控制器驱动的机组就会失去稳定性。这类机组必须设置调速器，使其能随着载荷等条件变化，随时建立载荷与能源供给量之间的适应关系，以保证机组作正常运转。调速器的理论和设计问题，是机械动力学的研究内容。调速器的种类很多。

9907-167

但是，Woodward 9907-167 数字调速控制器能够有效地保护机电部件免受任何永久性损坏或任何侵入性颗粒。表壳防水防尘，适用于室内和室外环境。9907-167装置的环境温度范围，在没有保护框架的情况下，是-25到65°C，但是在有框架的情况下，它最多只能承受55°C。其中应用广泛的是机械式离心调速器。而以测速发电机或其他电子器件作为传感器的调速器，已在各个工业部门中广为应用。为了使调速器能稳定调节，在调速器中还要加入一个装置，其作用是在伺服活塞移动的同时对滑阀产生一个反作用，使其向平衡的位置方向移动，减少柴油机转速波动的可能性。这种装置称为反馈机构。

9907-167

The 9907-167 unit is part of the Woodward 505E series digital control equipment. These devices are part of the 505E series produced by Woodward Company. This is one of the oldest independent turbine control system manufacturers in the United States. The 505E series is designed specifically for industrial scale steam turbines, small turbine generators, or utility turbine expander models. The 505E pipeline is generally designed for single extraction and/or inlet of steam turbines. It drives the steam turbine by using a pair of actuators to drive the inlet valve. The device is numbered 9907-167. It is equipped with a 32-bit microprocessor to control the turbine. The entity of the 9907-167 device consists of a series of printed circuit board devices installed in an enclosure that can be safely installed within the control panel system. The 9907-167 model can be equipped with a NEMA 4X level protective housing. This type of shell is optional.

9907-167

A governor is an automatic adjustment device used to reduce non periodic speed fluctuations in certain machines. The basic structure of the full speed governor can keep the machine speed at a fixed value or close to the set value. Unlike electric motors, hydraulic turbines, steam turbines, gas turbines, and internal combustion engines cannot automatically adapt to their own load changes. Therefore, when the load changes, the unit driven by the Woodward 9907-167 digital speed controller will lose stability. This type of unit must be equipped with a governor that can establish an adaptive relationship between load and energy supply at any time with changes in load and other conditions to ensure normal operation of the unit. The theoretical and design issues of speed governors are the research content of mechanical dynamics. There are many types of governors.

9907-167

However, the Woodward 9907-167 digital speed controller can effectively protect electromechanical components from any permanent damage or any invasive particles. The watch case is waterproof and dustproof, suitable for indoor and outdoor environments. The ambient temperature range of the 9907-167 device is -25 to 65 ° C without a protective frame, but with a frame, it can only withstand up to 55 ° C. The widely used one is the mechanical centrifugal governor. Speed governors using tachogenerators or other electronic devices as sensors have been widely used in various industrial sectors. In order to ensure stable regulation of the governor, a device should also be added to the governor, whose function is to produce a reaction on the spool valve while the servo piston moves, causing it to move towards a balanced position and reducing the possibility of diesel engine speed fluctuations. This device is called a feedback mechanism.