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 Hydraulic actuating |
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In the process of basic rehabilitation of the Batak water power cascade stations - Peshtera and Batak in 1997-1999 period, the Hydro Ltd. experts created a principal new system for the hydraulic actuation of the spherical valves of the above stations, based on electric logics. 10 spherical valves in Peshtera HPP and five in Batak HPP were rehabilitated, and as a result this principle was entirely accepted in our hydro power industry and began to be universally applied at rehabilitation of spherical and butterfly valves.
In cooperation with Sofia TU, the Hydro, Aerodynamics and Hydraulic Machines Department, Hydro Ltd. performs a number of engineering tasks in the field of hydraulics and hydraulic drives, and the more material of these in the last years are: |
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- Development, mounting and setting in operation of a „High-pressure hydraulic pump station” /600bar/, designed for tensioning the dome beans of the covers on reactors of blocks 5 and 6 of Kozlodui NPP /2001/
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- Design, delivery and mounting of systems for lubrication of radial bearings of U1,2 & 3 in Aleko HPP - investor NEC S.A. /2003/
- New hydraulic automatics for Peshtera HPP main butterfly valve in the upper inlet chamber - full engineering - investor NEC S.A. /2003/
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| HPP “Peshtera” |
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HPP “Batak” |
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- New hydraulic automatics of butterfly valves in front of the turbines and in inlet chambers for Pastra and Rila HPPs, mounting of new turbine governors for the latter - investor BAD Granatoid. /2004-2005/
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| HPP “Rila” |
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- New hydraulic automatics of butterfly valves in the inlet chambers of Sandanski, Lilyanovo and Popina Laka HPPs, rehabilitation of hydraulic automatics of the spherical valves in front of turbines, new systems for generator bearings lubrication and new hydraulic systems for the generators mechanical brakes - investor Energo PRO Bulgaria AD. /2004-2005/
- New hydro automatics of U2 spherical valve for Mala Tsarkva HPP – investor NEC S.A., HPP branch, Rila. /2006/
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| HPP “Sandanski” |
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| HPP “Popina laka” |
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| HPP “Mala tsarkva” |
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| HPP “Lilyanovo” |
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- New hydraulic automatics of U1 mechanical brakes, temperature measurement and butterfly valve control in Rakita HPP - investor Runo, Kazanlak.
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| HPP “Rakita” |
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