可逆步进装置调节阀执行机构的研究

为克服散热器温控阀的不足,研制了一种新型的可逆步进调节阀执行机构,在一些控制功能要求较高的应用场合取代散热器温控阀.该执行机构利用半导体制冷器在两个密封容器中产生的可逆差动压力作为驱动力,通过结构相同的正反向步进装置与两个离合器配合使用,实现可逆的步进转动.步进装置的传动机构利用倾斜连杆等机构,将垂直方向的推力,转变为水平旋转运动的转矩,实现对球阀的驱动.对所设计执行机构工作原理进行了介绍,并对研制样机的实验数据进行了分析,结果表明,该执行机构更便于实现智能化,可以获得比散热器温控阀更好的节能效果.

Regulating valve actuator based on reversible step-by-step unit

To overcome the shortcoming of temperature-sensing valve of radiator used in individual household metering heating systems,a new regulating valve actuator based on reversible step-by-step unit is developed. In this actuator,the reversible differential pressure produced in two airtight containers for semiconductor refrigerator is used as driving force. Then the reversible step-by-step revolution is realized by cooperating two clutches with a clockwise step-by-step unit and a counter clockwise step-by-step unit,which have the same structure. The drive mechanism of each step-by-step unit turns vertical push to horizontal couple of forces with inclination connecting rods in order to revolve a globe valve. The operating principle of actuator is introduced, and the experimental data of the model machine are analysed. Results indicate that the developed actuator exhibits better energy saving than temperature-sensing valve of radiator.