| 摘要 |
A bearing cooling system comprises a bearing assembly, a heat exchanger, a coolant flow circuit apparatus and a lubricant flow circuit apparatus. The bearing assembly is configured for being removably seated within a well drilling head housing and for having a stripper rubber assembly attached thereto. The bearing assembly includes bearings and a lubricant flow path configured for allowing lubricant to be circulated through the bearings. The heat exchanger has a lubricant core portion and a coolant core portion, which are jointly configured for allowing heat transfer between respective fluids of the core portions. The coolant flow circuit apparatus is coupled to the coolant core portion and is configured for circulating coolant through the coolant core portion. The lubricant flow circuit apparatus is coupled to the lubricant core portion and lubricant flow path, and is configured for circulating lubricant through the coolant core portion and the lubricant flow path.
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