Nordlaks is a Norwegian totally built-in firm that produces, processes, and sells Atlantic salmon and rainbow trout worldwide. It has lately accomplished the constructing of a new smolt facility for fish as much as 1 pound at Innhavet in Hamarøy municipality. This RAS (recirculating aquaculture system) fish farm is the largest of its sort in Norway, with a special give consideration to smolt welfare. The land-based facility has state-of-the-art tools for optimal biosecurity and sustainability. At the guts of the RAS process, all recirculation pumps have been equipped by Sulzer.
PROJECT DATA
Fifty AHLSTAR and BE recirculation pumps (continuous duty) in water therapy loops. The dry-installed single-stage overhung pumps are equipped with semi-open impellers and single mechanical seals.
Five VUPX-0402 (602,312 gallons per hour at 10 feet of head) submersible propeller pumps (intermittent duty) for the emptying of fish tanks.
THE CHALLENGE
The Innhavet RAS plant has thirty-four fish tanks of various capacities (92,000 to 264,000 gallons) in five separate main sections. Each section is unbiased from the others and includes its own complete water remedy system in a semi-closed loop (98 p.c recirculation plus 2 percent make-up water). The brackish water from the fish tanks first flows by gravity to a rotating drum filter for the removing of the main suspended strong particles. It then falls into an MBBR (moving bed biofilm reactor) for TAN (total ammonium nitrogen) reduction. After passing by way of a countercurrent degasser for the stripping of nitrogen and carbon dioxide, the handled water is finally pumped to some head tanks, previous to oxygenation and return to the fish tanks.
In each fish tank, the water is absolutely renewed each half an hour. The well-being of the smolts is very depending on a relentless move of water by way of the facility. The reliability of the recirculation pumps is, due to this fact, of paramount importance.
High total power efficiency of the RAS plant means a better environmental footprint and decreased working costs. Consequently, เกจวัดแรงดันลมดิจิตอล of the water remedy loops must have top-class efficiencies, particularly the recirculation pumps.
THE SOLUTION
As a long-term provider of apparatus (pumps and turbines) to other Nordlaks plants, Sulzer was concerned at an early stage of the model new project. In collaboration with the Momek Group, a big industrial service supplier in Scandinavia, the pumps had been carefully chosen, not solely to fulfil the necessities in the course of the guarantee interval, however to run optimally and economically throughout the entire lifetime of the location. For the recirculation of the brackish water, fifty AHLSTAR and BE course of pumps in duplex materials have now been put in and are operating continuously. In addition, 5 VUPX submersible propeller pumps are used on intermittent responsibility when the fish tanks are emptied through the transfer of smolts.
New Nordlaks fish farm in Innhavet, Norway.
CUSTOMER BENEFIT
By choosing to work with a trusted companion, the client made certain to get fast and everlasting technical help, along with the most effective products. The recirculation pumps have the next major benefits:
Extremely excessive hydraulic efficiencies that by far exceed the strictest vitality laws for water pumps. This means large energy financial savings over time and smaller total cost of ownership, duty factors close to BEP (best efficiency points), low rotation speeds, and inflexible baseplates grouted in concrete. The pump models are working easily with minimized vibration levels. Superior-grade material is used for all wetted components. For the choice of pump materials in contact with brackish water, the long-term perspective favored duplex stainless steel rather than 316SS. Duplex steels have better design energy than austenitic stainless steels, in addition to larger corrosion, abrasion, and pitting resistance. In the top, maintenance costs and the chance of downtime are lowered.
Sulzer is a recognized provider in the fish farm market, with revolutionary and confirmed pumping, mixing, and aeration solutions, and offers highly energy-efficient products with low life-cycle costs and the smallest potential environmental footprint. As a fabric specialist in a broad range of fresh water, brackish water, seawater, and brine applications, we will supply pumps in cast iron, 316 stainless-steel, duplex, tremendous duplex, SMO, and so on. .
Water therapy system process chart.
FOR MORE INFORMATION
For more information on Oerlikon Balzers and their family of DLC surface solutions, please visit https://www.oerlikon.com/balzers/us/en/portfolio/balzers-surface-solutions/.
Share