As a new type of power equipment, gas turbine has obvious advantages such as compact structure, light weight per unit power, stable operation, safe and reliable operation, large-scale and high thermal efficiency, quick start and load, etc. Therefore, it has been widely concerned by the world. also getting wider.
After the gas turbine has been used for a certain period of time, we should carry out corresponding inspection and repair. This process is very important, and the construction personnel must not ignore it. Let's find out together Gas Turbine Repair importance and development prospects.
Gas turbines are unique and irreplaceable power equipment in the field of aerospace; they also occupy an increasingly important position in the fields of sailing and land transportation. In some modern ships, gas turbines are used as power equipment.
Gas turbines are also used as power equipment for land transportation vehicles, such as cars, trains, locomotives and military tanks. In the field of power generation, gas turbine power plants occupy less space, have shorter construction periods, less water consumption, and less exhaust pollution. Therefore, it is favored by people, especially the gas-steam combined cycle power plant mainly composed of gas turbines, not only has light exhaust pollution, but also its thermal efficiency has reached and exceeded the latest ultra-supercritical parameters of steam turbine power generation Therefore, the use of steam turbine generators in the power generation industry is also increasing, which has shaken the dominant position of steam turbine generator sets in the power generation industry. It can be expected that in the near future, gas turbines will definitely replace the dominant position of steam turbine generator sets in the power generation industry.
With the widespread use of gas turbines, the repair of gas turbines naturally attracts more and more attention. Although the working pressure of the working fluid of the gas turbine is not very high, basically within 30bar, the temperature of its working fluid is very high. The gas temperature is about 1430 ° C; and it is a high-speed rotating machine. In addition to strengthening daily operation protection, gas turbines working under these conditions must also be regularly repaired to ensure the safe operation of the unit.
The fuel of the gas turbine can be natural gas, light oil, heavy oil or crude oil, or even low calorific value gas.
Depending on the fuel used, the content and workload of gas turbine protection and regular maintenance are also different. Because the working temperature of the gas turbine is very high and it is a high-speed rotating machine, its working conditions are quite harsh. However, various accidents caused by high temperature still occur from time to time during the operation of the gas turbine, so the regular maintenance of gas turbines stipulates a clear and strict time period and detailed maintenance content, and strictly follow the skills provided by the gas turbine manufacturer. Documents and relevant standards require construction, as well as overhaul to deal with problems found in the operation of the unit and dangers that have not been found but that threaten the safe operation of the unit, so as to ensure the safe operation of the unit.
At the same time, reasonable and scientific maintenance can also extend the service life of various components of the gas turbine, thereby improving the economy of gas turbine operation.