Optimal operation control method for industrial self-provided power plant
A technology for optimizing operation and control methods, applied in mechanical equipment, safety devices, machines/engines, etc., can solve the problems of low power generation efficiency and cycle efficiency, high standard coal consumption for power generation, etc. Effect
Active Publication Date: 2020-06-09
中石化节能技术服务有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide an optimized operation control method for industrial self-provided power plants, so as to alleviate the problems of large power generation standard coal consumption, low power generation efficiency and cycle efficiency existing in existing self-provided power plants
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specific Embodiment approach
[0061] refer to Figure 5 A specific embodiment of an optimized operation control method for an industrial self-contained power station shown, the method includes the following steps S510 to S550:
[0062] S510, establish the steam-electricity conversion relationship of the steam turbine;
[0063] For example, a cogeneration unit has 0 # -4 # Turbogenerator set, 0 # The machine is a B25 back pressure heating unit, 1 # -3 # The generators are three C50 single-extraction heating units, and the 4# unit is a CC50 double-extraction heating unit with a designed installed capacity of 225MW; the designed low-pressure steam heating capacity is 800t / h, and the medium-pressure steam is 180t / h. Using the steam turbine production data of the device, the data fitting of the above-mentioned steam turbine power generation and the steam flow rate of each section is carried out respectively. where 0 # The fitting result of the machine is as follows: P e =D I / 11.635+0.2408; use the abo...
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The invention provides an optimal operation control method for an industrial self-provided power plant, and relates to the technical field of industrial self-provided power plants. The optimal operation control method comprises the steps: when the heat supply quantity is changed, keeping the steam inlet quantity constant under the regulation of the constant steam inlet quantity, and calculating the power generation standard coal consumption under different steam extraction heat supply quantities; keeping the condensing quantity constant under the regulation of the constant condensing quantity,and calculating the power generation standard coal consumption under different steam extraction heat supply quantities; and respectively comparing the power generation standard coal consumption regulated by the constant steam inlet quantity and the power generation standard coal consumption regulated by the constant condensing quantity, and determining the regulation mode of a steam turbine of the industrial self-provided power plant when the heat supply quantity changes according to the principle that the power generation standard coal consumption is lower. According to the operation state of the steam turbine, the problems of higher power generation standard coal consumption, lower power generation efficiency and lower cycle efficiency are solved by adopting a reasonable adjusting mode,and the beneficial effects of improving the efficiency of the thermoelectric cycle process and reducing the power generation standard coal consumption index are realized.
Description
technical field [0001] The invention relates to the technical field of industrial self-contained power stations, in particular to an optimized operation control method of an industrial self-contained power station. Background technique [0002] In order to stabilize the demand for steam and electricity of oil refining and chemical plants, refining enterprises generally have independent self-provided power stations. see figure 1 , electricity is mainly driven by steam to drive the steam turbine to rotate and then drive the generator to generate. Steam can be obtained by decompression and decompression, but the most important way is to extract some of the steam that has done work from the middle and low pressure sections of the steam turbine for external heating. The high pressure steam entering the steam turbine produces both electricity and steam. The production and operation of the self-provided power station of the refining and chemical enterprise needs to meet the deman...
Claims
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Login to View More IPC IPC(8): F01D21/00F01D17/00F01D15/10
CPCF01D21/00F01D17/00F01D15/10
Inventor 田涛谢艳丽白凌云王北星
Owner 中石化节能技术服务有限公司