A self-circulating automatic wheel hub pressure maintaining oil system for a large bulb tubular unit

Abstract

The invention discloses a self-circulating automatic wheel hub pressure maintaining oil system for a large bulb tubular unit, which consists of a bulb tubular unit, an oil receiver, an oil collecting device, an oil return tank, a high-pressure oil tank, a governor, a hub high-level oil tank, It is composed of oil filling valve, oil leakage pipe of oil receiver, high pressure oil pipe, oil overflow pipe, manual oil discharge valve of high-level oil tank of wheel hub, pressure maintaining oil pipe of wheel hub and oil leakage pump. The whole bulb tubular unit is arranged in the flow channel, the oil receiver and the oil leakage pipe of the oil receiver are located in the bulb head of the bulb tubular unit, and the oil collecting device is located in the corridor at the lower part of the runner chamber of the bulb tubular unit, and the oil is replenished. The valve, high-pressure oil tank, governor and oil return tank are located at the elevation of 58m in the main building. The high-level oil tank of the hub and the manual oil drain valve of the high-level oil tank of the hub are located at the elevation of 65.15m in the main building. factory. The invention can realize the full-automatic circulation of the wheel hub pressure-holding oil, can effectively reduce the operation and maintenance workload, improve the safe operation reliability of the unit, and reduce the power utilization rate of the plant.

Description

technical field [0001] The invention relates to a self-circulating automatic wheel hub pressure maintaining oil system of a large bulb tubular unit, which belongs to the technical field of hydropower generation. Background technique [0002] The bulb tubular unit is generally equipped with a high-level fuel tank in the hub, which provides pressure-retaining oil with a certain pressure to the hub body. At present, the wheel hub pressure maintaining oil system commonly used in the bulb tubular unit is to use the governor high-pressure oil tank to replenish oil to the hub high-level fuel tank (there is no special requirement for the oil level of the wheel hub high-level fuel tank, as long as there is always oil in the fuel tank), the wheel hub high level The oil tank supplies oil to the oil receiver, the oil receiver leaks oil to the oil collection device, and then the oil collection device pumps oil to the oil return tank. The turbine oil in the oil return tank is pressurized ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a self-circulating full-automatic hub pressure-maintaining oil system for a large-scale bulb tubular unit to solve technical problems such as large operation and maintenance workload, large power consumption, and short service life of the equipment.

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