Water intakes systems in electrical generation, desalination, refineries and gas treatment plants have extensive protection and filtering systems from their inlet.
The purpose of retaining and removing fine solids in the water intake for the power (combined cycle, thermal, etc.) or desalination plant is for protection through removal of small strange objects that could damage the equipment and quality of the intake water (river water and seawater intake).
There is fine and microfine differentiation according to the sieve size and the type of solids to be removed. The removal of fine/floating solids is the second phase in the filtering and protection of the intake system water (ranges 2 mm – 15 mm).
ESTRUAGUA designs and manufactures a full range of screens and removal systems for coarse, medium and fine solids in the open channel of the water intake works.
The purpose of screening, among others, is to separate and protect the plant or process from the possible unwanted arrival of large objects, it separates and easily removes fine solids etc.
The usually discontinuous operation of the cleaning device can be actuated by an electric adjustable timer or by a differential head loss indicator, or a combination of both systems.
This equipment is recommended for screens with continuous and automatic cleaning that are installed in very deep channels.
The PEGASUS and PEGASUS PRO equipment are equipped with automatic cleaning which has a continuously moving mesh that retains the solids, lifts them to the top part and discharges them. The equipment has a filter screen washing system that uses pressurised water and a rotary brush to remove the solids, which are then taken from the filter screen to a container, conveyor belt, screw conveyor, hydraulic compactor, etc.
All the models have the same basic construction and can be supplied with a wide range of special features, such as:
• Wider or narrower screen
• Adaptation to the channel or civil works
• Construction in stainless steel (SS 314- 316 / Duplex – Super Duplex)
• Perforated plate sieve and plate mesh of different sizes. Always metal
• Protection systems for operation (fully closed)
• Odourless systems
ESTRUAGUA has supplied more than 800 PEGASUS / PEGASUS PRO systems in projects all around the world. ESTRUAGUA has considerable knowledge and experience in the supply and installation of PEGASUS / PEGASUS PRO system equipment for removing medium and fine solids in water intake for power plants.
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