| 摘要 |
<p>PURPOSE: To provide a thermostat device capable of dealing with a large capacity thermostat tank. CONSTITUTION: There is provided a thermostat device of the type in which there are provided a thermostat tank 1 and a heat exchange tank 2 including a heat exchanger 3 and a heater 4 therein, and in which there are connected with the heat exchange tank 2 a cold water supply line 5 having a water supply pump 10 for supplying cold water and an overflow line 11, and further in which a fluid in the thermostat 1 is circulated into the heat exchange tank 2. In the thermostat device, there are connected an outlet 1a of the thermostat tank 1 and an inlet 3a of the heat exchanger 3 with each other through a supply line 6 having a circulation pump 7. Together with this, there are connected an outlet 3b of the heat exchanger 3 and an inlet 1b of the thermostat tank 1 with each other through a reflux line 8 having a temperature sensor 9. There are further connected to a controller 13 the water supply pump 10, the temperature sensor 9, and the circulation pump 7 through a line 12. Based upon detection temperature by the temperature sensor 9 the heater 4 is rendered to PID control upon heating while the water supply pump 10 is rendered to on/off control upon cooling using a non-contact relay 14.</p> |
