| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent the high-temperature oxidation of a heating medium in a heating medium system circulating heated transfer oil between a heat using part and the heating medium system. <P>SOLUTION: The heating medium system for circulating the heated transfer oil between the heat using part 11 and the heating medium system includes a heating medium boiler 1 heating heat transfer oil, a heating medium expansion tank 2 arranged in a heat transfer oil distribution passage uppermost part, and a heating medium service tank 3 to accumulate heat transfer oil overflowing from the heating medium expansion tank 2. The heating medium system also includes a nitrogen gas supply device 4 supplying nitrogen gas to the heating medium expansion tank 2, a pressure control device 5 controlling the introduction of the nitrogen gas to keep set pressure which is set so that pressure in the heating medium expansion tank 2 is slightly higher than atmospheric pressure, and a liquid seal part 7 formed of the heat transfer oil and arranged in a heating medium release passage 6 releasing the heat transfer oil from the heating medium expansion tank 2 to the heating medium service tank 3. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
