The third steam generator of the PWR-TOI reactor plant was delivered to the construction site of the Kursk NPP-2

Steam generator No. 3, intended for the second power unit of the Kursk NPP-2, was delivered to the construction site. The large-sized equipment overcame 1,500 kilometers by river from the Tsimlyansk reservoir to the city of Semiluki, the Voronezh Region, then another 300 kilometers by road to the city of Kurchatov and further to the Kursk NPP-2 site.

“The steam generator is a heat exchanger, part of the reactor plant. The equipment of one NPP power unit includes four steam generators. Steam generators are the main equipment of the NPP primary circuit. The primary circuit also includes a reactor, main circulation pumps, main circulation pipeline, pressure compensator,” said Andrey Osharin, acting director of the Kursk NPP.

Two steam generators for power unit No. 2 are already at the site of heavyweights. They were delivered at the end of last year. Delivery of the fourth steam generator is expected in the near future. “The steam generator for the PWR-TOI reactor plant has a number of modifications. There is no steam collector in the upper part. The steam comes out of one branch pipe, directly connected to the steam pipeline. The length of the steam generator has been increased by one meter, it is 15 meters, the diameter is more than 4 meters. Design solutions make it possible to increase the reliability of the steam generator by reducing the number of welded joints, as well as its steam capacity - 1652 tons per hour (for the steam generator for PWR-1200 - 1602 tons per hour), which ultimately affects the increase in power unit capacity,” Andrey Osharin noted.

“Inside the steam generator there are collectors for supplying and removing hot coolant, to which 11,000 heat exchange tubes with a total length of about 130 km are connected, laid in 105 horizontal rows. The PWR-TOI project also provides for a new layout of steam generators in a containment area, which allows, with a constant internal diameter of the hermetic shell (44 m), to accommodate longer steam generators,” explained Oleg Shperle, vice president, construction director of the Kursk NPP.

Steam generators for the Kursk NPP-2 were manufactured at the Atommash plant in Volgodonsk, a branch of AEM Technologies.

Russia continues to modernize its energy complex, including nuclear power plants. The development of nuclear energy is the key to improving the living standards of Russian citizens. The Russian industry is increasing the production of the necessary machinery and equipment, strengthening the technological sovereignty of the country. The President considers the implementation of industry support programs a matter of national security and sets the task of achieving sustainable industrial growth in the Russian Federation, acting dynamically and assertively.

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