High-pressure oil jacking control system of through-flow type hydroelectric generating set

Abstract

The invention relates to the technical field of high-pressure oil jacking, in particular to a high-pressure oil jacking control system of a through-flow type hydroelectric generating set. The system comprises a vertical shaft, one end of the vertical shaft is communicated with a water inlet, the other end of the vertical shaft is communicated with a water outlet, a power generation bin is fixedly connected into the vertical shaft, and a stator is fixedly connected into the power generation bin. The inner diameter of the stator is rotationally connected with a rotor, the center of the rotor is fixedly connected with a rotating shaft, and one end of the rotating shaft is fixedly connected with a rotating wheel. The system has the advantages that when the flow speed is reduced, the rotating wheel cannot decelerate immediately under the inertia effect, when a flow speed detection device detects that the flow speed is reduced, a jacking device is pressurized, thus damage to a bearing bush caused by pressurization delay can be avoided, when the flow speed detection device and a rotating speed detection device send pressurization instructions to the jacking device at the same time, the jacking device is in an intensified pressurizing state, and thus the bearing bush can be fully protected when a generator is decelerated and started.

Description

technical field [0001] The invention relates to the technical field of high-pressure oil jacking, in particular to a high-pressure oil jacking control system for a tubular hydroelectric generator set. Background technique [0002] A hydroelectric generator is driven by a water turbine. Its rotor is short and thick, the time required for the start-up and grid-connection of the unit is short, and the operation scheduling is flexible. In addition to general power generation, it is especially suitable as a peak-shaving unit and an emergency standby unit. With high pressure, it is necessary to establish an oil film through a high-pressure oil jacking device to protect the bearing bush inside the bearing. [0003] Disadvantages of the existing high-pressure oil jacking control system for tubular hydro-generator sets: [0004] 1. There is a certain delay in adjusting the oil pressure of the high-pressure oil jacking control system of the existing tubular hydro-generator set, and ...

AI Technical Summary

Problems solved by technology

[0004] 1. There is a certain delay in adjusting the oil pressure of the high-pressure oil jacking control system of the existing tubular hydro-generator set, and the jacking oil pressure is adjusted before the generator speed changes;

[0005] 2. The high-pressure oil jacking control system of the existing tubular hydro-generator set cannot automatically adjust the oil pressure according to the operating conditions of the generator

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