发明名称 |
SEAL OIL TEMPERATURE CONTROL METHOD AND APPARATUS |
摘要 |
A system for providing seal oils to a gland seal that surrounds the shaft of a generator with the temperature differences between the oils minimized. The temperature of one of the seal oils is utilized as a reference for controlling the oil temperature of the other seal oil. In particular, the temperature of the air-side seal oil is determined and utilized as a reference. The temperature of the hydrogen-side seal oil is determined, and a differentiator produces a signal based upon the difference between the air-side and hydrogen-side seal oils to control either the water flow rate to the hydrogen-side cooler, or to control mixing of cooled and uncooled oil in the hydrogen-side of the system. The system advantageously prevents thermal differential expansion from occurring in the generator shaft, and allows for the elimination of a controlled cooler in the air-side oil system. Further, the air-side oil can be suplied from the main lube oil system.
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申请公布号 |
US5147015(A) |
申请公布日期 |
1992.09.15 |
申请号 |
US19910646925 |
申请日期 |
1991.01.28 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
SNUTTJER, OWEN R.;RASINSKI, MICHAEL J. |
分类号 |
F16J15/40;F16N29/00;F16N39/02;G05D23/13 |
主分类号 |
F16J15/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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