The development of methods of prolongation of high temperature elements operation of energetic and industrial equipments
In the energy sector of Ukraine there are a significant number of different power boilers, furnaces, drying, gas turbines etc., which exhausted their service life. The experience in the operation of such systems has shown that one of the problems of their functioning is a significant discrepancy between the actual and the calculated distribution of the heat flow in the combustion chamber. This results in thermal distortions in the equipment elements occurrence stresses and lead to crash. In these circumstances, there is the need for work on the definition of state of the most thermal stress elements, an estimation of their residual life, issuing recommendations to remove them from operation or development of a relatively economical measures to prolong the life of these units.
One of the main elements of flame installations, from the characteristics of which depends largely their effectiveness, terms of work, the formation of the distribution of heat flow in the combustion chamber, etc. is a burner device. Operating experience of burners, which used in power generation and industry, shows that in many cases they have low technical and economic performance, especially when they working on variable parameters of the working process, mainly due to the outdated methods of organization in their workflow.
The main approach to the development of highly efficient burners is that they used schems of mixing fuel and oxidizer, which provides optimum ratio of the combustion components, implemented mikroflame highly efficient combustion of fuel in the stabilizer system of a relatively small size.
Due to the temperature control of the heat carrier there is a possibility to regulate the process of drying boilers, furnaces and steel ladles, which improves the reliability and durability of the equipment. A method for determining the influence of gas temperature and the level of local non-uniformity on the residual life of equipment is proposed, which provide the means to increase the period of work.