Проблема підвищення робочого ресурсу деталей енергетичного обладнання

Purpose of the study. Improving the operational properties of power equipment, increasing the service life of power equipment parts through the use of vacuum coatings that increase their wear resistance and heat resistance. Materials and methods. Method of applying vacuum coatings that increases the wear resistance and thermal stability of energy complex machines. The impeller of the CHP smoke exhauster without application and with application of heat-resistant and strengthening multi-element and multi-phase coatings. During the experiments, the impeller of the smoke exhauster was used, which directly worked at a CHP operating on gaseous fuel, namely on a gas mixture of natural gas + blast furnace gas + coke oven gas. Based on this, we have additional aggressiveness of combustion products. Before conducting the experiment, the surface of the smoke exhauster blade was treated with alcohol. The following equipment was used in the experiment: an ultrasonic bath with a hot cleaning solution, a vacuum chamber, a microarc was created by an ion discharge. Results. The scientific novelty consists in developing a method for calculating thermoelastic stresses based on the experimental value of microhardness when operating in high temperatures and aggressive environments. An innovative method for assessing the life cycle of energy equipment materials that are subject to corrosive and thermal influences has been developed. Practical significance. Based on experimental and theoretical research, a multilayer functional nanocrystalline coating has been developed for heat and power equipment operating in an aggressive environment with specified properties. This coating is used to increase the strength of the working surfaces of thrust and blower machines of thermal power plants and CHPs. Recommendations have been developed to improve the operational characteristics of equipment at CHPs