High-temperature lubricating oil cooling scheme
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The temperature of the lubricating oil coming out of the engine is around 180°C; it needs to be cooled by water to 40–45°C. The inlet temperature of the cooling water is 30°C, while the outlet temperature is 40°C. Conventional brazed plate heat exchangers cannot handle such a large temperature difference, as this can lead to thermal fatigue. It is suggested to pre-cool the lubricating oil first! How can lubricating oil be pre-cooled before being fed into the plate heat exchanger for further cooling? What does the specific plan look like?
Advanced air cooling, followed by water cooling.
Could you be more specific? The lubricating oil coming out of the engine is cooled by air directly (is a air cooler needed? ), to what temperature should it be reduced before entering the heat exchanger?
This fully welded shell-and-tube heat exchanger can solve the problem without the need for pre-cooling