Drainage system for heat and power station, Gdynia, Poland
Drainage system for heat and power station
The heat and power plant in Gdynia struggled with choking drainage ducts and the resultant elevated level of ground water, which would lead to flooding of the underground levels of the facility. The construction of a classic drainage system using excavation methods was seriously challenged and even impossible in many places due to collisions with numerous underground systems as well as the protective zones of overhead power lines. As a result, a decision was taken to build a new drainage network in the trenchless technology with the use of jacking drainage VipLiner DN630mm modules from Uponor Infra.
VipLiner drainage modules feature solid polyethylene (PE) pipes with smooth inner and outer surfaces. Due to their strength characteristics, special technology and geometry of their outer layer grooving, the modules can be used for trenchless drainage systems which lower the level of ground waters. VipLiner 1-metre drain module have slots made using a water jet cutter. 240 slots of 150mm x 1.5mm in size are spaced in perpendicular along the axis. Their cross-section has a wedge shape, with the narrower opening at the inner surface. Such cross-sectional geometry creates a natural reverse filter, ensuring that the soil surrounding the drain pipe is not washed away.
This world-first method is innovative and patented!
Slotted drainage VipLiner module has been awarded the TYTAN 2016 Award in the ‘Product of the Year’ category during the XIV International Conference "Trenchless Engineering" in Krakow.
Dr Eng. Marcin Blockus (Ingeo Sp.z o.o, Gdynia)
EDF Polska S.A. Gdynia Heat and Power Station
Przedsiębiorstwo Budownictwa Ogólnego i Robót Inżynieryjnych "INŻYNIERIA" Sp. z o.o. Płońsk
New dry land fish farm which will produce 3,200 tonnes of rainbow trout annually is being build in Eckerö in the Åland Islands. Uponor Infra has provided design assistance and delivers the pipes and is responsible for their installation and welding.
Weholite’s ability to withstand external wear, such as friction against the seabed, was an important criterion when the outfall pipe of Stora Enso’s pulp and paper mill in Nymölla, southern Sweden, had to be replaced.
The district cooling system in Helsingborg involves the streamlining of current production. By means of seawater and using heat from the district heating network to power an absorption cooling unit, district cooling provides much better environmental values than electric cooling units. The district cooling station is an efficient source of cooling for buildings, industrial facilities and shopping centres.
The technological pipelines transporting the brine washed out during the construction of underground gas storage facility followed by its discharge into the Puck Bay.
Weholite technology was used for the construction of a penstock (water transmission pipeline) for a new small hydro power plant in the city of Cieszyn.
For almost 20 years, Uponor Infra has assisted the Polish mining conglomerate KGHM Polska Miedź S.A. in modernising Europe’s largest tailings pond.
For many years Uponor Infra has suppplied KGHM with high-quality polyethylene piping systems that transport water and slurry.
Uponor Infra has been delivering for the last dozen or so years the PEHD systems for surface drainage of brown coal mine