Page 51 - Impiantistica industriale

the retrofit of the pumps, transforming the outdated
BB1-type design from the late 1970s into a new-
er, more efficient between-bearing patented pump
design called HSS. The retrofit program, involving
over ten pumps, was executed over several years
with timelines established with the customer to mi-
nimize plant disruptions. Each pump conversion,
excluding preparatory engineering and procure-
ment activities, took about 30 calendar days and
comprised activities such as machining the body
and cover, modifying supports for the bearing re-
placement, and adjusting the pump rotor.
The new pump design achieved a 1.5% efficiency
improvement and featured an enhanced seals and
bearings configuration resulting in greater reliability
and longer maintenance intervals.

Land Reclamation Project - Concrete volute pump - impeller
Pump Supply for the Pumping
Station System
of an Irrigation Project

Trillium participated in a project of a branch canal’s
pumping station system, aimed at optimizing the
use of a river basin and transforming an entire state
from a desert into an irrigated agricultural area. At
the time, this was the world’s largest project, fea-
turing five pumping stations capable of moving 35
million cubic meters of water each day. The initiati-
ve aimed to irrigate 1,800,000 hectares of land and
provide drinking water to over 132 major towns, as
well as numerous villages.

Taking a lifecycle approach,
Trillium provides support
“throughout all phases of a
plant project, from design and Lifting Station Project - old
construction to operation and BB1-type pump design
from the 1970s
maintenance, through to life
extension

Trillium supplied a total of 26 Termomeccani-
ca Pompe concrete volute pumps for a pum-
ping station system. The largest pumps had a
capacity of 72,000 m³/h, a head of 16 m, and
a power output of 4 MW. Both the discharge
volute and the suction duct were made of con-
crete and were incorporated into the civil engi-
neering works. To establish the concrete pou-
ring method and various casting steps, Trillium
collaborated closely with the project’s civil en-
gineering team. The hydraulic performance of
the pumps, which included the suction channel
and discharge siphon, was validated through
tests involving Computational Fluid Dynamics
(CFD) analysis and a reduced scale model of Lifting Station Project - new
the pump. Extensive measurements were taken patented Termomeccanica
to assess the behavior of the impeller under ca- Pompe HSS between bea-
vitation conditions, and visual examinations of ring pump design

Impiantistica Italiana - Gennaio-Febbraio 2025 47