What is the function of the jacking oil pump?
2 Answers
The function of the jacking oil pump in a steam turbine is to prevent damage to the turbine and reduce the turning gear power. The oil source for the jacking oil pump comes from the lubricating oil after the oil cooler, with a pressure of approximately 0.176MPa, effectively preventing air erosion in the oil pump. The suction oil undergoes coarse filtration through a 32μm automatic backwashing filter device. Here are additional details: 1. Jacking oil pump system: When the steam turbine operates at very low speeds, an oil film does not form between the journal and the bearing, causing the journal to come into contact with the bearing. If friction occurs, both the journal and the bearing may become scratched. Additionally, without an oil film, the rotor may experience vibration during rotation, which can often lead to blade vibration. 2. Function: To prevent damage to the steam turbine, reduce the turning gear power, and ensure smooth operation during turning, the steam turbine is equipped with a jacking oil system. The low-pressure rotor bearings share one set, while the high- and medium-pressure rotor bearings are tilting pad type and do not require a jacking oil device.
As a regular car owner who drives frequently, I have a deep understanding of the role of the overhead oil pump. Its main function is to pump oil from the oil pan to the top parts of the engine, such as the valves and camshaft. This creates an oil film that prevents direct friction and overheating between components. The engine runs much smoother, reducing rattling or shaking. Without proper lubrication, engine components would wear out quickly, potentially overheat and burn out, and the car might break down on the road. The last time I encountered a similar issue, the mechanic advised me to regularly check the oil level and oil pump pressure to ensure the engine's longevity. Routine maintenance should not be overlooked, as it not only affects performance but also impacts driving safety. In short, this small component is crucial for the overall operation of the engine.
