| 摘要 |
PROBLEM TO BE SOLVED: To provide a temperature controller for controlling high temperature using a rise of internal pressure of piping by cubical expansion of water, without using a booster pump. SOLUTION: A temperature controller 11 is provided with a control unit 30 for controlling drive of a circulation pump 13, controlling energization of a heating unit 14, and controlling opening and closing of a water supply valve 18, water discharge valve 19, and a cooling-water solenoid valve 26. The control unit 30 is provide with: a control function to open the water supply valve 18 and water discharge valve 19 to discharge air in a circulation circuit 15 to the exterior; a control function to close the water discharge valve 19 while to open the water supply valve 18 to control heating of a heating medium in the circulation circuit 15 by the heating unit 14 under pressure of pressurized supply water (tap water pressure); and a control function to control heating of the heating medium in the circulation circuit 15 by the heating unit 14, under higher pressure than the pressure of the pressurized supply water (tap water pressure) in which the circulation circuit 15 is controlled to a closed circuit by closing the water supply valve 18 and water discharge valve 19. An accumulator 23 for pressure accumulation to reduce a pressure change in the piping is installed in front of the water discharge valve 19. COPYRIGHT: (C)2010,JPO&INPIT
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