Method for determining optimal offline washing period of gas turbine
A gas turbine, off-line technology, used in special data processing applications, instruments, electrical digital data processing, etc.
Active Publication Date: 2014-02-19
CHINA SHENHUA ENERGY CO LTD +2
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Problems solved by technology
It is necessary to determine an optimal water washing cycle by comparing it with the water washing benefit; and at present, the same type of gas turbines at home and abroad have not yet conducted research on the optimal off-line water washing cycle
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[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0023] The ISO described in the present invention refers to the international standard unless otherwise specified, that is: the ISO working condition refers to the international standard working condition, the ISO maximum load refers to the maximum load under the international standard working condition, and the ISO efficiency is Refers to the efficiency under international standard working conditions.
[0024] figure 1 It is a flow chart of a method for determining the optimum off-line water washing cycle of a gas turbine provided by an embodiment of the present invention, as shown in figure 1 As shown, the present invention provides a method for determining ...
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The invention discloses a method for determining the optimal offline washing period of a gas turbine. The method comprises the steps that data of the maximum load P1 and the operation time t of the gas turbine are collected after washing; the maximum load P1 is corrected to be the ISO maximum load P; a function relational expression between the ISO maximum load P and the operation time t is achieved through fitting; the effective electricity production W in the period 2T between every two adjacent washing periods is calculated according to the function relational expression; according to the effective electricity production W, the average load in the period 2T is calculated; the value of the optimal offline washing period T is calculated when the average load is maximum. By the adoption of the method for determining the optimal offline washing period of the gas turbine, the problems that washing time arrangement of the gas turbine is not reasonable, so that the washing cost is high, the efficiency of a unit is low, and the economic benefits are influenced are solved, the washing cost is greatly reduced, and the washing benefit is maximized.
Description
technical field [0001] The invention relates to the cleaning of gas turbines, in particular to a method for determining the optimum off-line water washing period of the gas turbines. Background technique [0002] The gas turbine directly uses air as the working medium. Although a filter device is installed at the inlet of the gas turbine, it is still inevitable that the impurities in the air enter the compressor and adhere to the blades of the compressor, resulting in a decrease in the flow area of the compressor and a decrease in the efficiency of the gas turbine. Seriously Sometimes even affect the safe operation of the gas turbine. In order to ensure the safe and efficient operation of the gas turbine, it is necessary to regularly shut down and wash the gas turbine to restore the efficiency and output of the gas turbine; however, a large amount of factory power is consumed during the washing process, and the cost of using a special cleaning agent for washing the gas tur...
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Inventor 王建伟刘江周玉宏
Owner CHINA SHENHUA ENERGY CO LTD