High Temperature and Pressure Resistance
The pressure-resistant shell and fully welded plate pack support demanding industrial applications with design pressures up to 80 bar and temperatures up to 500°C, subject to model and material selection.
Fully Welded Plate Shell Heat Exchanger
Aiprel fully welded plate and shell heat exchangers combine the high thermal efficiency of plate heat exchanger technology with the mechanical strength of a pressure-vessel shell.
Description
The unit consists of a fully welded corrugated plate pack installed inside a cylindrical pressure shell. This construction eliminates elastomer gaskets from the primary heat transfer core, making it suitable for applications involving high pressure, elevated temperature, vacuum operation and media that may be incompatible with conventional gasket materials.With a maximum design pressure of up to 80 bar and a maximum design temperature of up to 500°C for selected configurations, Aiprel plate and shell heat exchangers provide a compact alternative to conventional shell-and-tube equipment in demanding industrial processes.Actual operating limits depend on material selection, pressure-vessel design, welding procedure and applicable design code.
Main Advantages
Gasket-Free Plate Pack
The welded heat transfer core contains no interplate elastomer gaskets, avoiding gasket aging, swelling and chemical compatibility limitations.
High Heat Transfer Efficiency
Corrugated plates generate turbulent flow and provide a large heat transfer area, supporting efficient heating, cooling and process heat recovery.
Compact and Lightweight Design
The plate-and-shell construction delivers substantial thermal capacity within a smaller footprint than many conventional shell-and-tube heat exchangers.
Corrosion-Resistant Material Options
Stainless steel, titanium, Hastelloy and 254 SMO plate options are available for corrosive and chemically demanding process media.
Flexible Process Applications
The unit can be configured for liquid heating, cooling, vapor condensation, evaporation and heat recovery in chemical, energy, oil and gas applications.
Specification
- Operating Temperature
- −195°C to 538°C, without elastomer gasket limitations
- Design Pressure
- Full vacuum to 8.2 MPa, compared with typically ≤2.5 MPa for conventional BR models
- Heat Transfer Coefficient
- 2,000–6,000 W/m²·K, approximately 3–5 times that of a shell-and-tube heat exchanger
- Heat Transfer Area per Unit
- Up to 6,000 m², suitable for large-capacity industrial applications
- Connection Size
- DN25–DN300, with flanged, welded or threaded connections available
- Maximum Processing Capacity
- Up to 2,500 m³/h
- Plate Materials
- AISI 304, AISI 316, AISI 316L, titanium, Hastelloy, nickel and 254SMO
Application
Oil, Gas and Petrochemical Processing
Aiprel plate and shell heat exchangers can be engineered for:
- Hydrocarbon cooling
- Natural-gas heating
- Compressed-gas cooling
- Process feed preheating
- Feed-and-effluent heat recovery
- Reactor temperature control
- Thermal-oil systems
- Process vapor condensation
- High-pressure liquid heating
- Refinery utility systems
Chemical and Coal-Chemical Processing
Typical duties include:
- Acid and alkali heating
- Solvent cooling
- Process interchanging
- Syngas-system heat recovery
- Coal-gasification auxiliary systems
- Chemical vapor condensation
- High-temperature process cooling
- Organic chemical production
Material compatibility must be evaluated using the complete operating composition.
Power and Energy
Possible applications include:
- Power-plant heat recovery
- High-temperature water systems
- Steam-system heat transfer
- Generator cooling
- Turbine lubricating-oil cooling
- Boiler auxiliary systems
- Waste-heat utilization
- Thermal-energy storage
Nuclear-related projects require project-specific qualification and documentation. Standard industrial equipment should not be described as nuclear-grade without the required certification.
District Heating
Plate and shell heat exchangers can be used in high-temperature and high-pressure primary heating networks.
Typical applications include:
- Municipal heating stations
- Industrial steam-to-water heating
- High-temperature water interchanging
- Waste-heat integration
- Primary and secondary circuit isolation
Lubrication and Hydraulic Systems
Applications include:
- Lubricating-oil cooling
- Compressor-oil cooling
- Turbine-oil cooling
- Hydraulic-oil temperature control
- High-pressure oil heat recovery
Refrigeration and Gas Processing
Suitable configurations may be used as:
- Refrigerant liquid coolers
- Gas coolers
- Refrigerant evaporators
- Refrigerant condensers
- Cascade-system heat exchangers
- LNG and LPG process heat exchangers
Refrigerant compatibility and applicable pressure codes must be confirmed during selection.
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