Noardling Hubert - Water Intake System for Industrial and Power Plants
Hubert water intake systems are used to mechanically clean or screen water extracted from the sea, rivers or lakes. Mechanical cleaning removes unwanted matter with screens or sieves. This protects the downstream process stages from build-up, clogging and abrasion. The aim is to protect suction pumps and other downstreamequipment such as desalination membranes, heat exchangers/ condenser tubes from the carry-over of coarse and fine debris.
Water intake screening systems are used for filtering
- cooling water for power plants (combined cycle, nuclear, thermal and hydro)
- raw water for desalination and other potable and drinking water production plants
- process water for industrial production processes, such as pet roc he mica I plants and refineries.
Other examples are food processing and mining, drainage channels, fire fightingchannels and irrigation offtakes.
Lowest operation costs and fish friendly
Our solutions are environmentally friendly and are used in both submerged passive water and open surface water intakes to deliver debris-free water. In addition, they can be supplied with a fish recovery system that allows trapped fish to be removed in a gentle and effective way, in line with applicable regulations. The tailor-made design of our screening systems allows for the lowest possible operating and maintenance costs, including maximum performance and reliability, effective design, and good quality and particle-free filtered water. Our cathodic corrosion protection systems (based on sacrificial anodes or an impressed current cathode protection (ICCP) system) provide corrosion resistance and longer lifetimes in seawater. Today, a lot of duplex and super duplex stainless steel (PREN > 40) is used for screens. You will find our projects in both new construction (engineering, procurement and construction - EPC) projects and renovation/optimization of existing water intakes.
- Inlet (unfiltered water)
- Outlet (filtered water)
- Sluice gate / stoplog
- Trash rake gripper
- Debris container
- Drum screen
- Intake structure
The Hubert water intake screen system consists of a stoplog or sluice gate (3) for closing the inlet channel for maintenance or inspection (downstream). Next is a coarse screen and raking machine (4) for primary filtration, which removes large quantities of debris including high volumes of biological material (e.g. jellyfish, fish, seaweed). After that there is a drum screen (6) or a travelling band screen. This is the secondary/fine filtration, which can filter debris to 2-3 mm. After the drum screen or travelling band screen another stoplog or sluice gate is placed to close the channel for maintenance or inspection (upstream).