Fuel supply system capable of preventing evacuation
A fuel supply and fuel pump technology, applied in the direction of the charging system, liquid fuel feeder, engine components, etc., can solve the problems of height difference and failure to ensure continuous fuel output, etc., to solve the problem of pumping out, ensuring continuous operation, Guaranteed to work properly
Pending Publication Date: 2020-04-17
STATE RUN NO 616 FACTORY
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Problems solved by technology
Due to the long connecting pipelines between the daily fuel tank, the fuel pump and the underground fuel tank, and there is a height difference, when the fuel pump works for the first time (that is, supplying fuel from the underground fuel tank to the daily fuel tank), there is air in the pipeline, and there is an evacuation phenomenon. Therefore, the continuous delivery of fuel cannot be guaranteed
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[0011] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0012] refer to figure 1 As shown, the anti-evacuation fuel supply system of the present invention includes: a fuel tank, a daily fuel tank, and a fuel pump. The fuel tank is arranged underground, and the daily fuel tank and the fuel pump are arranged on the ground. The fuel pump is arranged on the fuel supply pipe, and the fuel supply pipe is set between the daily fuel tank and the fuel pump inlet; when the fuel is supplied from the fuel tank to the daily fuel tank for the first time, the daily fuel tank is first filled with fuel through the fuel pump , when the daily fuel tank is filled to the preset low level, stop the fuel pump, then open the fuel supply pipe, and refill the fuel supply pipe between the fuel pump a...
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The invention discloses a fuel supply system capable of preventing evacuation. The system comprises a fuel oil tank, a daily oil tank and a fuel oil pump, wherein the fuel oil tank is arranged underground, the daily oil tank and the fuel oil pump are arranged on the ground, an oil supply pipe and an oil return pipe are arranged between the fuel oil tank and the daily oil tank, the fuel oil pump isarranged on the oil supply pipe, an oil supplementing pipe is arranged between the daily oil tank and an oil inlet of the fuel oil pump, oil is supplied to the daily oil tank from the fuel oil tank for the first time, firstly, the oil is injected into the daily oil tank through a fuel pump, when the daily oil tank is filled with the oil to a preset low liquid level, the fuel oil pump is stopped working, then the oil supplementing pipe is opened, oil supplementing is conducted on the oil supply pipe between the fuel oil pump and the fuel oil tank through the dead weight of the daily oil tank,when that the liquid level of the daily oil tank is not lowered any more is observed, the oil supply pipe between the fuel oil pump and the fuel oil tank is filled with oil, and the air is exhausted.The system solves a problem of evacuation of a fuel oil system, ensures normal work of the fuel oil pump, realizes timed and quantitative oil supplement of the daily oil tank, and ensures continuous operation and work of an emergency diesel generator set under emergency conditions.
Description
technical field [0001] The invention belongs to the technical field of fuel supply in nuclear power plants, and relates to a pump-down-proof fuel supply system. Background technique [0002] In order to ensure the continuous power supply demand of the emergency load of the nuclear power plant emergency diesel generator set under rated working conditions, a set of fuel oil supply guarantee system should be provided. The system equipment is to supply and replenish oil to the daily fuel tank through the fuel oil pump from the underground oil storage tank to ensure the continuous fuel supply of the daily fuel tank, so as to meet the power supply requirements of the emergency diesel generator set for continuous operation of 180h. [0003] According to the overall solidification plan of the nuclear power site, daily fuel tanks and fuel pumps are arranged in rooms on the ground, with a height difference of 4 to 4.5 meters and a horizontal distance of 10 to 13 meters from the underg...
Claims
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IPC IPC(8): F02M37/00F02M37/20F02M37/04
CPCF02M37/0047F02M37/0052F02M37/20F02M37/04
Inventor 张志伟刘志生郭俊宝张泽马雁军
Owner STATE RUN NO 616 FACTORY