| 摘要 |
A device for protection of heating and water supply systems against freezing that includes differential temperature sensor with outlet con-rod, first valve with fixed cover and connected with threading spindle with restrictor of displacement, slide and elastic element, adding two-arm lever, fixed seat that interacts with the spindle through elastic element, slide, middle point and one arm of adding lever, the other arm of that one is connected to temperature indicator through output con-rod, at that another valve is additionally installed there, with spindle and spool with a spring, and a closed hydraulic transmission with receiving silphon, with movable and fixed flanges, and slave one, with first and second movable flanges. Silphons are connected to each other with hydraulic line, at that the first movable flange of the slave silphon is connected through a spring to the spool, the second movable flange – to the spindle, and the movable flange of receiving siplhon – to output con-rod. |
