Dissipate momentum
Discharge geometry reduces concentrated flow energy before it reaches the roof.
Engineered accessories
EZdiffuse
Tank inlet and gas-slug diffuser systems
Inlet arrangements engineered to manage liquid momentum, entrained gas and pigging events before they become a floating-roof problem.
Design intent
The roof should not be the diffuser.
A normal liquid inlet and a pipeline pigging event are not the same design case. Gas slugs, high local velocities and uncontrolled discharge direction can disturb the product surface and impose loads or buoyancy effects that a floating roof was never intended to absorb.
EZdiffuse is selected from the inlet event outward: expected liquid flow, gas volume, nozzle geometry, available clearance and the floating-roof type define the diffuser arrangement.
Engineering priorities
What the design has to get right.
Manage gas slugs
Pigging and entrained-gas cases are treated explicitly where they can occur.
Protect roof clearance
Diffuser geometry is coordinated with the lowest roof position, legs and internal obstructions.
Maintain the tank
Inspection, drainage, cleaning and access remain part of the design.
Scope
Typical scope
- Liquid-only inlet diffuser
- Gas-slug / pigging diffuser
- Perforated or distributed discharge concepts
- Support and nozzle interface
- Clearance review against roof low position
- Integration with HC or NC floating-roof design
Inputs
Design inputs
- Inlet nozzle size and location
- Maximum liquid flow
- Pigging frequency and expected gas volume / pressure
- Tank geometry and minimum roof height
- Stored product properties
- Existing internal piping and obstructions
Standards & project basis
Designed from the application, then checked against the code.
Diffuser design is application-specific. The governing process case, floating-roof design basis and project piping / tank requirements are established before geometry is finalised.
Application review
Start with the tank, the service and the result you need.
Emission Zero can review the application before turning it into a product configuration or project specification.