title: ÐÑÐ¾ÐµÐºÑ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Ð¿Ð°ÑÐ¾Ð²Ð¸Ð½ÑÐ¾Ð²ÑÑ Ð°Ð³ÑÐµÐ³Ð°ÑÐ¾Ð² Ð² ÐºÐ¾ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÐÐ»ÐµÐ½ÐµÐ³Ð¾ÑÑÐºÐ¸Ñ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ ÑÐµÑÐµÐ¹ Ð´Ð»Ñ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ Ð¿Ð¾ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½ÐµÑÐ³Ð¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The project of installing steam-screw units in the boiler room of the Olenegorsk thermal networks to cover their own electricity needs
Creators: name: ÐÑÐ°Ð²ÑÐ¾Ð², ÐÐ¸ÐºÐ¸ÑÐ°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¼Ð¸Ð½Ð¸-Ð¢Ð­Ð¦
Ð¿Ð°ÑÐ¾Ð²Ð¸Ð½ÑÐ¾Ð²Ð¾Ð¹ Ð°Ð³ÑÐµÐ³Ð°Ñ
ÑÐµÑ Ð½Ð¸ÐºÐ¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸
mini-CHP
steam-screw unit
technical and economic indicators

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description: The topic of the final qualifying work is devoted to the project of a mini-thermal power plant based on a counter-pressure turbine unit with an existing boiler operating on an open heat supply system in Olenegorsk.Â A review of typical schemes for the integration of a steam unit into the schemes of boiler houses with steam boilers is carried out. As a result of the analysis, a selection of schemes was made that allow generating electricity at different types of thermal load.Â As a counter-pressure steam expander, a steam-screw machine with a single capacity of 1000 kW produced by JSCÂ Â«VT TechnologiyaÂ»Â was selected. The design and characteristics of a steam screw aggregator are considered. The mini-CHP includes two steam-screw PVM-1000 units, vertical shell-and-tube heat exchangers, condensate pumps. The layout of the equipment in the boiler room on the site of the dismantled boiler was completed. Calculations of expansion processes in a steam-screw machine, heat exchange processes in heaters of various boiler room water flows have been made.Â The characteristics of a mini-CHP plant for the conditions of the months of the year, including additional fuel costs for electricity production, the production of electric and thermal energy, are determined. On this basis, the financial and economic indicators of the mini-CHP construction project were obtained.