Mechanical Design
New design office in Prague has expanded ŠKODA JS’ competence in the field of piping systems, covering comprehensive engineering activities from the elaboration of studies and detailed design, through the preparation of calculations, to the development of shop design drawings and calculation documentation.
The team members are mostly experienced specialists, some of whom have worked in the power industry for decades. Over the years, the team has been supplemented with young collaborators who have already gained experience in the independent processing and management of large-scale projects.
On the present, the Piping Systems Department has been working on the project “Completion of Unit 4 of the Mochovce Nuclear Power Plant”. The designers are mainly involved in the resolution of collisions, including performing operativecheck calculations of piping and its accessories. Site installation and setting in operation of Unit 3 has been completed.On Unit 4 continue activities aimed at completing assembly work.
The team of designers also successfully continued in the realization of other projects, mainly for Czech NPP units.
In Dukovany NPP, we finished the following projects:
- Primary circuit safety valves reinforcement
- Main safety valves reconstruction
- Recalculation of super emergency supply piping routes
- Proven calculation documentation of essential technical water reconstruction
- Documentation of the “as-built” state and strength calculations of steam and power supply piping in the Dukovany NPP Machine Hall.
- Reconstruction of the essential technical water piping at the boundary of the hermetic zone with the addition of shut-off valves and replacement of hermetic penetrations
- Feasibility study – exchange of steam generators
In Temelín NPP, we finished the following:
- Reconstruction of the piping and main safety valves of the pressurizer system including calculation of the hydrogen removal system
- Proven calculation documentation of the essential technical water reconstruction
- Replacement of the control valve on the injection into the volume compensator at Temelín NPP
- Strength calculations for essential technical water reconstruction
- Design and supply of parts for the steam test stand for Temelín NPP.
- Reconstruction of the fire water tanks in the A820 room
- Feasibility study and initial design for the fast depressurization of the primary circuit in the event of a severe accident
- Replacement of the sleeve on the main circulation pipeline
- Design and calculations for long-term heat removal (G840)
Other activities:
- Seismic reassessment of major components for Mochovce NPP, including the start of work on implementation projects.
- Extensive feasibility study for the replacement of measuring orifices and nozzles in the machine hall for Mochovce/ Unit 1,2
- Calculations and design for the attenuation of high pressure fire pumps at Mochovce NPP
- Replacement of measuring nozzles and separators at Mochovce NPP.
- Sensitivity analysis, calculation report and technical report – elimination of oscillation of the main circulation pump at Bohunice NPP.
- Design and supply of emergency containment depressurization (Venting system) at Ukrainian nuclear power plants.
The history of our cooperation
2014ŠKODA JS opened a new design office in Prague
since 2015the project “Completion of Units 3 and 4 at the Mochovce Nuclear Power Plant” project
2015-2017the project “Reconstruction of the Main Pipelines and Safety Valves of the Pressurizer System Including the Hydrogen Removal System Calculation” at the Temelín NPP
2015the projects “Reconstruction of the Main Safety Valves” and “Reinforcement of the Primary Circuit Safety Valves” at the Dukovany NPP, “Supporting Documentation Calculation of the Essential Service Water Reconstruction” at the Temelín NPP
2016the projects “Emergency Feedwater System Pipelines Calculation” at the Dukovany NPP and “Supporting Documentation Calculation of the Essential Service Water Reconstruction” at the Temelín NPP
2017the projects “Replacement of the Injection Control Valve in the Pressurizer System”, “Hydraulic Calculation of Non-essential Service Water at the Temelín NPP”, “Strength Calculations for Additional Essential Service Water Reconstruction” at the Temelín NPP
2018-2020projects for the companies Slovenské elektrárne, ČEZ., I&C Energo, the Institute of Applied Mechanics Brno and NAEK Energoatom
2021-2022solving the issue of FEBE supplies to Mochovce 3,4, documentation of the “as-built” state of the Dukovany machine hall, reconstruction of the essential technical water piping at the boundary of the hermetic zone with the addition of shut-off valves and replacement of hermetic penetrations