The Region’s Trusted Distributor of Plate & Shell Heat Exchangers

Plate and shell heat exchangers (PSHE) combine the pressure and temperature capabilities of a cylindrical shell with the excellent heat transfer performance of a plate heat exchanger. The round plates ensure an even distribution of mechanical loads, without the stress concentrations that occur in the corners of rectangular plates.

The design of the plate and shell heat exchanger is similar to that of a radiator or water heater, but it differs in that the water passes through two separate circuits—one for heating and one for cooling.

The shell side of the plate and shell heat exchanger contains a series of tubes with fins that are submerged in an oil-based fluid. This fluid circulates throughout the system, absorbing and releasing heat from the tubes as needed. This process also helps to keep the tubes from overheating by transferring excess heat into the oil-based fluid as it flows through them.

The plates on the other side of this device are made out of either steel or aluminum alloy material which serves as both an insulator and a conductor. They also contain small holes or tubes through which air can pass through so as not to overheat during use; however, these holes should be kept clear at all times so as not to damage any other parts within their reach (i.e., heating coils).

Compact

Small installation and surface area due to compact design.

Performance

High performance with small surface area, weight and footprint by high heat transfer coefficients – reducing structural steelwork and facilitating skid assembly

Fully Welded

Fully welded design eliminates gaskets, ensuring high temperature resistance and high reliability to failure and leakages.

Cost Effective

Low cost for steel structures and foundations due to low equipment weight and smaller footprint.

Reduced Fouling

Plate design provides a high wall shear stress, which acts as a self-cleaning effect – reducing fouling and extending the time between cleaning.

Flexible

Range of plate and nozzle sizes, combined with flexibility of shell design and number of nozzles provides optimised solution.

PSHE Structure

Working Principle

The gaps between the corrugated plates are forming flow channels which are flowed through alternately by a primary and secondary media. Flow directors at shell side prevent a bypass – flow between shell and plate pack. The flow direction of both media can be arranged as counter-flow, co-current or cross-flow. The heat is transferred via the corrugated plates. When one or both media are evaporating or condensing partly or completely, it is called a two-phase application.

By means of deflections the media at plate side and shell side as well can be led in multi passes. This way the thermal length is increasing. Our plate & shell heat exchangers are available in five sizes and with different corrugation patterns, i. e. with different corrugation angles and pressing depths.

H-plates allow high heat transfer rates caused by a high turbulent flow. L-plates are used in applications which are optimised for a minimal pressure loss. In gas / gas – applications or when the media is contaminated with solids G-plates often are used, which have larger channel cross-sections.

Features

Operating temperature: -200 to 500 °C
Operating pressure: -1 to 400 bar (g)
Liquid hold-up varies from 3 to 1,000 litres per pressure chamber.
Dynamic viscosity up to 8,000 mPa s
Flexible shell design
Plate thickness from 0.6 to 1.25 mm with H-, L- or G- plates.
Weld thickness up to 3.5x higher than plate thickness.
Plate design with self-cleaning effect
Wide range of plate materials provides high corrosion resistance.
Nozzle sizes: DN 20 (3/4“) to DN 1000 (40”)

Contact Us for Plate & Shell Type of Heat Exchangers

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