A steel frame of superficial structure of the foundation turbine is installed at Pavlodar CHP-3. What’s unique here is that this frame allows achieving a minimum value of vibration status while in operation of turbine generator No.6. It is worth noting that it is the first installation of such type in Kazakhstan and in the CIS territory.
Up to date, the first section of 156-ton steel frame was installed. It consists, in whole, of three larger parts; two parts will be attached to the first one over the course of nearest several days.
“Our major tasks were to fix a frame section on special spring supports, to adjust in horizontal direction and along an axis of a future installation of the turbine generator. There are not any analogues of such steel frame in Kazakhstan and in the CIS. This is a project of the “GERB” German firm that was implemented jointly with Sevkazenergoprom Institute”, - said Alexandr Vergolyas, Chief Engineer of CHP-3.
Turbine No.6 was firstly operated in 1977, it was mounted on reinforced-concrete foundation, all aggregate was installed on twist-and-steer girts made of reinforced concrete. Now, the turbine generator will be installed on a steel frame to be located on columns with spring blocks. The new generator and two cylinders of high and medium pressure are manufactured by the Uralsk Turbine Plant. Low-pressure cylinder is in good repair and shall not be replaced.
The German party performed the site supervision for installation of spring elements when assembling a steel frame of superficial structure of foundation and condenser of turbine generator No.6. Under the direction of the German engineers, 12 foundation plants were installed and setup, spaces between columns and foundation plates were filled, pretensioned spring elements of condenser and of turbine were installed.
“All abovementioned works were performed according to the project without any remarks. Now, upon full assembly of turbine generator, pipelines, isolation, water pouring into the condenser, we are waiting for one more specialist from the same company. He shall perform works on release of spring elements. They will be released in-situ in order absorbing of turbine vibration may be possible. The final setup of the turbine, start-up operations and hook up of the turbine into electrical network will be made upon completion of all works”, - told Gennady Morar, Head of Reconstruction and Modernization Department.
Reconstruction of turbine No.6 shall be performed through the end of 2018.Upon the reconstruction, installed electric power of the station will be increased by 15 MW and will amount 555 MW.