A flow quantity controller with temperature difference as its source signal

The article deals with a kind of flow quantity controller, which employ temperature difference as its source signal, used in the system of collecting heat and providing hot, to control the two definitive impeller speech flow quantity in the co-shaft differential heat meters also. In the equipment,there is a pair of airtight speech, which was designed in the in-and-out container with saturation-steam-mediu m, it can change the width of the throttle valve through the elastic wave pipe to drive the center of the throttle valve sliding, the pipe equip in the same shaft. In this way, we can reach the purpose of controlling the flow quantity with temperature difference, the controller was composed of mechanical accessories, working freely, don't depend on the out source, its working reliability can be trusted.