Construction of a new combined cycle gas turbine (CCGT-230), in the framework of the ongoing reconstruction of Izhevsk CHPP-1, final stage of commissioning. Equipment testing took place at one of the main parts of the new unit — the recovery boiler.
Waste heat boiler for Izhevsk PGU-230 is manufactured at Taganrog factory "Red Boiler" OJSC ("EMA"). This is one of the most massive parts of the new unit — the height of the waste heat boiler is 30 meters, and the total weight — about 1,500 tons. In boilers of this type the heat of exhaust gases of the gas turbine is used to heat water and generate steam which is then fed to a steam turbine. This technology offers high efficiency combined-cycle plant.
Since 1 July 8 HRSG was tested for gas density. To check the tightness of the boiler, the specialists completely isolated him from the gas turbine flap diameter of 3.6 m, raising the pressure inside the boiler by means of compressed air up to 300 mm Hg. After that, the boiler ignited smoke bombs, smoke from which was to identify all possible cracks and surface defects.
"Tests on the gas density have been passed from the third filling — this is a very good indicator, — the chief construction engineer Alexey Ushakov. — Now we are planning to conduct hydraulic tests, which will be checked by sealing welds steam-water boiler equipment. " These tests will take place at the end of July.
As experts say, is now undergoing final tests did not. Subsequently, reliability and safety of the waste heat boiler and other key units of the basic equipment of CHP experts will check the Federal RTN.
In addition to commissioning works, now go to the site of construction — completed construction of administrative and auxiliary building, set in place a 100-ton generator stator steam turbine installation is complete skeleton tower. Also started the construction of a compressor station and a gas treatment point, additional equipment is being installed and finishing work inside the already constructed buildings. Total to date on the construction employed more than 650 workers, engineers and technicians.
Izhevsk CHPP-1 — the oldest thermal power plant of the Udmurt Republic, providing light and warmth of a third of Izhevsk, which has more than 200,000 residents, as well as most of the large industrial enterprises. In 2014, the CHP will celebrate its 80th anniversary. Reconstruction of Izhevsk CHPP-1 — one of the largest investment projects of regional power. Construction of new power stations is a part of the priority investment project IES Holding. The ceremony of laying the first stone for the construction of new power was held April 27, 2012, the project is scheduled for completion in December 2013.
The project involves the construction of combined-cycle power plants with a total capacity of 230 megawatts, its implementation will allow a 4-fold increase in the installed electrical capacity Izhevsk CHPP-1 (from 69 MW to 290 MW) and decommission obsolete generating equipment, 50 per cent lower fuel consumption and improve the overall efficiency of the plant. The structure of PSU will include: gas turbine 167 MW waste heat boiler and steam turbine capacity of 63 MW.