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汽车发动机冷却系统中的节温器改装后,可用来作定温放水式太阳能热水装置中的温控器。节温器由波纹筒、低沸点液体与阀门组成,其结构如图所示。金属波纹筒具有良好的导热性、弹性与较大的工作面积,筒内密封着低沸点液体。使用时将它浸没在需要温控的水中,低沸点液体被水加热后蒸发产生饱和蒸气,蒸气压力通过顶杆开启阀门。当波纹筒外的水温降低后,筒内
Car engine cooling system after the thermostat modified, can be used for constant temperature water heater in the water heater. Thermostat from the bellows, low boiling point liquid and the valve composition, the structure shown. Metal bellows with good thermal conductivity, flexibility and larger working area, the cylinder sealed with a low-boiling liquid. When immersed in the need to use it in the water temperature control, low-boiling liquid is heated by water evaporated to produce saturated steam, steam pressure through the mandrel to open the valve. When the bellows outside the water temperature decreases, the tube