Gas turbine off-line cleaning method
A gas turbine, off-line technology, applied to gas turbine devices, cleaning methods and appliances, cleaning methods using liquids, etc., can solve problems such as gas turbine performance attenuation, and achieve safe and reliable operation
Inactive Publication Date: 2017-08-18
AECC SHENYANG ENGINE RES INST
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Problems solved by technology
[0005] The purpose of the present invention is to provide a gas turbine off-line cleaning method to solve the problem of gas turbine performance attenuation due to compressor blade fouling
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[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] The gas turbine off-line cleaning method of the present invent...
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The invention provides a gas turbine off-line cleaning method. The gas turbine off-line cleaning method comprises the following steps that it is guaranteed that the turbine outlet temperature is not higher than 66 DEG C, the gas compressor inlet temperature is higher than 10 DEG C, and a gas compressor inlet guide blade is in the fully-opening state; a gas turbine off-line cleaning device is installed, a gas turbine drain outlet and a sewage groove are connected, a cleaning vehicle and a jetting ring are connected, and meanwhile it is guaranteed that a spraying nozzle is smooth; cleanout fluid is prepared and heated to 40 DEG C to 50 DEG C; a gas turbine is driven to rotate at the cleaning rotating speed, and the cleaning vehicle jets the cleanout fluid to clean the gas turbine; the cleaning vehicle is subject to cleaning evacuation, distilled water is added to be heated to 40 DEG C to 50 DEG C, the gas turbine is driven to rotate at the cleaning rotating speed, the distilled water is jetted to rinse the gas turbine, the cleaning and rinsing effects are checked; and the gas turbine is subject to cold running so that it is guaranteed that accumulated water is blown to be dry. By means of the method, the overall off-line cleaning process is safe and reliable in operation, simple and convenient; the manner of crossed cleaning and rinsing through the cleanout fluid and the distilled water is adopted, and therefore the comprehensive cleaning aim is achieved.
Description
technical field [0001] The invention belongs to the field of gas turbines, and in particular relates to an off-line cleaning method of a gas turbine. Background technique [0002] The shortage of energy in the world has caused users to have higher and higher performance requirements for gas turbines. The reuse of exhaust gas with high efficiency, low emissions, and low combustion value has become the development trend of gas turbines. However, for gas turbines, the main reason for the deterioration of their performance is the fouling of the compressor blades, which blocks the airflow passage. In severe cases, it may even cause the compressor to surge. [0003] The composition of blade fouling deposits mainly includes: moisture, oil, soot, water-soluble components, insoluble dust, and blade material corrosion. Atmospheric conditions, air filtration conditions, and oil circuit sealing conditions of the gas turbine operating environment affect the type and rate of compressor ...
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IPC IPC(8): F02C7/32B08B3/02B08B3/10
CPCF02C7/32B08B3/02B08B3/10
Inventor 徐鑫种强韩永军赵祥敏
Owner AECC SHENYANG ENGINE RES INST