Generator single-ring sealing oil system for thermal power plant and on-off control method of generator single-ring sealing oil system

A sealing oil and generator technology, which is applied in lubricating oil control valves, engine components, engine lubrication, etc., can solve problems such as the inability to continue the start-up procedure and the inability to realize the automatic start-up of the single-flow ring sealing oil system

Active Publication Date: 2016-10-12
NORTH CHINA ELECTRICAL POWER RES INST +1
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Problems solved by technology

The existing single-flow ring sealing oil system of the thermal power plant generator cannot realize the automatic start of the single-flow ring sealing oil system under the state of full stop; nor can it realize the si...

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  • Generator single-ring sealing oil system for thermal power plant and on-off control method of generator single-ring sealing oil system
  • Generator single-ring sealing oil system for thermal power plant and on-off control method of generator single-ring sealing oil system
  • Generator single-ring sealing oil system for thermal power plant and on-off control method of generator single-ring sealing oil system

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Embodiment Construction

[0081] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0082] The embodiment of the present invention provides a thermal power plant generator single flow ring sealing oil system, such as figure 1 As shown, the single-flow ring sealing oil system includes: generator sealing ring 48, oil return expansion groove 49, intermediate oil tank 51, intermediate oil tank oil level regulating valve 23, air extraction groove 50, vacuum oil tank 52, sealing oil vacuum pump 41, The first main seal oil pump 39, the second main s...

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Abstract

The invention provides a generator single-ring sealing oil system for a thermal power plant and an on-off control method of the generator single-ring sealing oil system. The generator single-ring sealing oil system comprises a generator sealing ring, an oil return expansion slot, an intermediate oil tank, an intermediate oil tank level control valve, an air extraction slot, a vacuum oil tank, a sealing oil vacuum pump, a first main sealing oil pump, a second main sealing oil pump, an AC sealing oil pump recycling voltage stabilizing valve, a vacuum oil tank level control valve, a sealing oil recycling pump, a first oil supply filter screen, a second oil supply filter screen, an oil supply adjusting valve, an oil supply adjusting valve bypass electrically-operated gate, a first smoke exhaust fan, a second smoke exhaust fan, a separator, a sealing oil vacuum cooler and a plurality of pipelines. The generator single-ring sealing oil system for the thermal power plant can be automatically started up in the full-stop state and automatically stopped in the running state.

Description

technical field [0001] The invention relates to the sealing oil technology of a generator in a thermal power plant, in particular to a single flow ring sealing oil system of a generator in a thermal power plant and a start-stop control method thereof. Background technique [0002] The main function of the single-flow ring sealing oil system of the generator in a thermal power plant is to supply oil to the generator sealing shoe, and make the oil pressure higher than the hydrogen pressure in the generator by a certain value, so as to prevent the hydrogen in the generator from being separated along the shaft and the sealing shoe. The gap leaks outwards, and at the same time prevents a large amount of oil from entering the generator due to excessive oil pressure. The existing single-flow ring sealing oil system of the thermal power plant generator cannot realize the automatic start of the single-flow ring sealing oil system under the state of full stop; nor can it realize the s...

Claims

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Application Information

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IPC IPC(8): F16N7/40F16N39/06F16N39/02F16N23/00
CPCF16N7/40F16N23/00F16N39/02F16N39/06F16N2039/007
Inventor 任彦何振宇李朋刘邦泉赵宁孙燕平庞春凤
Owner NORTH CHINA ELECTRICAL POWER RES INST
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