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Constructions, Layouts and Modes of Powerful Boilers

Major: Heat and Power Engineering
Code of Subject: 7.144.01.E.28
Credits: 3
Department: Heat Engineering and Thermal and Nuclear Power Plants
Lecturer: Senior Lecturer Zayats Мariya Fedorivna
Semester: 2 семестр
Mode of Study: денна
Learning outcomes:
- the basic elements of boiler plant;
- Schemes of boilers;
- Main types of modern steam;
- The main problem of thermal calculation;
- Method of calculation of the individual heating surfaces.
Required prior and related subjects:
– prerekvizyty: pumps, fans, compressors; Boiler units TPP; turbine power station
- korekvizyty: setting up thermal power plants, foundations reconstruction and modernization of thermal power plants, power cycling of steam and gas turbines.
Summary of the subject:
Key issues and determination of the course. Areas of boilers Ukraine. General characteristics of modern boilers. Development of designs of boilers. Schemes of boiler installations and their elements. The development of boilers for medium, high and ultra-high settings couple. Characterization of them, the main heating surface. The main types of steam. Steam generators with natural circulation of water. Steam generators with multiple forced circulation of water. Pryamotechiyni steam. Steam and high-pressure supercharged. Steam special types of circuits and their elements. Thermal design of steam. The main task of thermal calculation of fuel. Calculation of heat in the furnace. Methods of calculating some convective heating surfaces. Heat transfer surfaces in the convection heating. Heat pipe in bunches. Radiation in a translucent medium. Adjusting overheat steam. Value stability overheat steam. Methods Regulation overheating. Surface desuperheater. Injection desuperheater. Regulatory schemes pryamotechiynyh overheating steam in steam generators. Adjusting overheating couples by balancing distribution in the flue gas duct, changing the position of the torch. In the furnace and change speed and water equivalent flue gases. Hydrodynamics steam. Hydrodynamics steam generators with natural circulation. Useful pressure circulation. Ekonomayzerni and parovmistymi contour plot. The principle of calculating circulation circuits. Reliability of movable pipes. Requirements for purity standards. The causes of pollution pair. Solubility of substances in the pair. Methods of pure steam. Separation prystroyi.Profil and layout of steam. Thermal steam circuit. Profile of steam generators and their classification. Plans basic profiles paroheneratoriv.Vybir main dimensions of steam. Assembly main heating surfaces. Schemes screening pryamotechiynyh steam. Schemes formation of festoons pipe rear screen. Scheme layout tubular and regenerative air heaters. Fittings and auxiliary devices. Classification of the main types of valves. Devices for cleaning heating surfaces. Steam and steam-blowing. Vibration and fractional treatment. Design and frame obmurivky. Basic principles of design frames. The principle of calculating frames frame. The main types of structures obmurivky steam.
Recommended Books:
1. Objects of thermal power plants. Modes of operation and maintenance / J.S. Mysak, Ja.F. Ivasyk, P.O. Gut, N.M. Lashkovska. Lviv National University "Lviv Polytechnic", 2007. -256s.
2.Yanko P.I., Mysak J.S. Modes of operation of power boilers. - Lviv: Firm "Ukrainian technologies", 2004. -270s.
3. V.A. Dvoynyshnykov et al. Constructions and calculation boilers and boiler plants. -M .: Engineering, 1988. 264 p.
Assessment methods and criteria:
• робота на практичних заняттях, усне опитування, КР (30%)
• підсумковий контроль (70 %, контрольний захід, залік): письмово-усна форма (70%).