形状记忆合金自动启闭洒水灭火喷头的研制

Study on Automatic Sprinkler with Shape Memory Alloy for Extinguishment

以形状记忆合金热－机械动作组件作为自动启闭洒水喷头的感温驱动元件，设计了一种新型自动启闭洒水灭火喷头——形状记忆合金自动启闭洒水喷头．论述了形状记忆合金自动启闭洒水喷头的结构原理和动作特性。

In order to design a new type automatic sprinkler with shape memory alloy (SMA) for extinguishment, the SMA thermomechanical actuator is used as thermal sensitive actuator in automatic sprinkler. The structure and acting properties of SMA automatic sprinkler are described, and it has been analyzed and compared that the acting perferame of the SMA thermomechanical actuator with the thermal bimetallic.