Electricity generating system and operation control method thereof
A technology of a power generation system and a bypass system is applied to a power generation system with a steam turbine bypass system and its operation field, and can solve problems such as heat consumption of a pebble bed.
Inactive Publication Date: 2016-07-27
韩少茹
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However, this invention also has the disadvantage that after the bypass is completed, the pebble bed needs to be cooled with a coolant, and the heat stored in the pebble bed is also consumed in vain after the bypass is completed.
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[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.
[0014] figure 1 is a schematic diagram of an embodiment of the invention. The power generation system of this embodiment includes a high temperature and high pressure gas generator 1, a gas turbine 2, a generator 3 and a gas turbine bypass system. The high-temperature and high-pressure gas generator 1 is used to heat the gas entering it, such as nitrogen, to generate high-temperature and high-pressure gas, and the generated high-pressure and high-temperature gas is transmitted...
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An electricity generating system comprises a gas turbine bypass system. The bypass system comprises a transfer valve, a bypass pipeline, a pebble bed and a gas cooler. During bypass operation, the transfer valve is used for transferring bypass gas to be away from an inlet of the gas turbine through the bypass pipeline and pass through the pebble bed, and the gas passing through the pebble bed is delivered to the gas cooler through a gas outlet. The gas turbine bypass system further comprises a residual heat utilization system. After bypass operation is ended, the residual heat utilization system drives a residual heat utilization turbine so that a residual heat utilization electricity generator coupled to the residual heat utilization turbine can be used for generating electricity. A cooling gas flow outlet of the residual heat utilization system is provided with a temperature sensor. When the temperature sensor detects that the temperature of the cooling gas outlet is lower than the boiling point of refrigerating fluid in a steam generator, the residual heat utilization system is shut down.
Description
technical field [0001] The invention relates to a power generation system and its operation method, in particular to a power generation system with a steam turbine bypass system and its operation method. Background technique [0002] The basic function of the power system is to maintain the balance of power load and power generation. With the continuous increase of production and domestic power consumption, the peak-to-valley difference of the power grid is gradually increasing, and it has become an indisputable fact that the peak-shaving and even deep peak-shaving of generating units has become an indisputable fact. . In order to adapt to large fluctuations in power load, generators in the power system must frequently and significantly adjust power generation to ensure power supply quality. [0003] At present, the vast majority of power supply load adjustments in my country rely on generator sets. Therefore, the power adjustment range and speed of generator sets have an i...
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IPC IPC(8): F01K23/02F01K25/10F28D17/02F22B1/18F22D11/06
CPCF01K23/02F01K25/10F22B1/18F22D11/06F28D17/02
Inventor 韩少茹
Owner 韩少茹