| 摘要 |
<p>972,747. Liquid circulating systems for cooling or heating electromagnets; concentric heat exchange tubes. VARIAN ASSOCIATES. Feb. 7, 1963 [Feb. 12, 1962], No. 5069/63. Headings F4S and F4U. A temperature control system for maintaining an apparatus 13, such as an electromagnet, at a constant temperature comprises a main fluid line 11, 12, 14, 16, 18 for leading fluid to and from said apparatus, a heat exchanger 10 consisting of a section of the main fluid line supplying liquid to and a section removing liquid from said apparatus, heat exchange occurring between the fluids in the two sections, a fluid diverting valve 19 controlling the fluid by-passing one of the said sections through a tube 17 and means dependent on the temperature of the supply liquid for controlling the operation of said valve. The section of the main fluid line within the heat exchanger may be the section supplying fluid to or removing fluid from the apparatus. The heat exchanger may comprise two coaxial tubes, Fig. 4 (not shown) which may be made of copper and spirally wound. A flow regulator 23 may be located in the main fluid line, which may be controlled by means sensitive to the temperature of the main line. The valve 19 may be controlled by means sensitive to the temperature of the supply fluid, e.g. a thermistor 21. The system may be used for either heating or cooling of the apparatus 13.</p> |
