Plate & Shell Heat Exchanger
A Plate & Shell Heat Exchanger is an advanced thermal exchange system that combines the efficiency of plate heat exchangers with the durability of shell & tube heat exchangers. Designed for high-pressure and high-temperature applications, this exchanger consists of corrugated metal plates welded together and housed within a cylindrical shell, ensuring efficient heat transfer in a compact footprint.
At Rahavard Saei, we manufacture high-performance Plate & Shell Heat Exchangers, built from stainless steel, titanium, and nickel alloys, making them ideal for high-temperature, high-pressure, and viscous fluid applications. Our designs adhere to API 662 and ASME Sec VIII standards, ensuring mechanical integrity, long service life, and superior performance.
Key Features & Benefits
- Compact & High-Efficiency Design – Transfers up to 4x more heat per unit volume than shell & tube exchangers
- Robust & High-Pressure Rated – Operates at pressures up to 100 bar and temperatures up to 400°C
- Welded Plate Construction – No gaskets required, ensuring leak-proof performance in extreme conditions
- Minimal Pressure Drop – Designed to provide maximum heat transfer with the lowest possible pressure loss
- Corrosion-Resistant Materials – Constructed from stainless steel, titanium, and nickel alloys for superior durability
- Easy Maintenance & Cleaning – Side panels can be removed, allowing quick inspection and servicing.
Mechanisms and Diverse Applications
Industries
Oil & Gas
Used in refineries, gas treatment, and heat recovery systems
Chemical & Petrochemical
Designed for highly reactive and corrosive fluid applications
Food & Beverage
Ensures hygienic and energy-efficient pasteurization and sterilization
Power & Energy
Optimized for waste heat recovery and steam generation
Marine & Offshore
Ideal for ship engine cooling, desalination, and seawater heat transfer
How It Works
A Plate & Shell Heat Exchanger consists of a series of thin, corrugated metal plates welded together, forming separate hot and cold fluid channels within a cylindrical shell enclosure. Unlike gasketed plate heat exchangers, the welded plates eliminate the need for gaskets, providing a fully sealed, high-pressure-resistant design.
Key Components & Functions
- Heat Transfer Plates – Thin metal plates that create multiple heat transfer channels, optimizing thermal efficiency.
- Shell Enclosure – Houses the welded plate pack, providing a durable and pressure-resistant casing.
- Inlet & Outlet Flow Connections – Precisely engineered ports ensure balanced fluid distribution.
- Flow Distribution System – Directs fluid through alternating hot and cold channels, preventing dead zones and maximizing efficiency.
During operation, one fluid flows through the plates while the other circulates in the shell, allowing efficient heat exchange through the metal plate walls. The welded plate structure enables the exchanger to handle high temperatures, aggressive fluids, and extreme pressures, making it ideal for demanding industrial applications. Additionally, side panel access allows for easy inspection and maintenance, reducing downtime and operational costs.
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