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Plate Heat Exchangers
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Plate heat exchangers are often used in low-viscous applications with moderate demands on operating temperatures and pressures, typically below 150° C. Gasket material is chosen to withstand both the operating temperature and the properties of the processing fluid. The most common type of plate heat exchangers is the gasketed plate-and-frame heat exchanger. Gasketed plate-and-frame heat exchangers consist of a series of channeled plates that are mounted on a frame and clamped together. Each plate is made from "pressable" materials (e.g., stainless steel, nickel, titanium, etc.) and is formed with a series of corrugations. An elastomer gasket is also included with each plate. The gaskets contain the pressure and control the flow of each medium. The gasketed plates are assembled in a pack, mounted on upper and lower guide rails, and compressed between two end frames by compression bolts. The gasket arrangement of each plate distributes the hot and cold media into alternating flow channels throughout the plate pack. In all cases, hot and cold fluids flow counter to each other. Other types of heat exchangers are categorized as brazed, welded, and semi-weld or hybrid. Brazed plate heat exchangers consist of specially formed plates, vacuum brazed together to form a heat transfer device. Welded plate heat exchangers require no gaskets. They are fully welded and typically constructed of a single material (usually stainless steel). Semi-weld or hybrid plate exchangers consist of pairs of plates that are laser welded together into cassettes. This allows one fluid to flow in a welded channel and another fluid to flow in a gasketed channel. Products & Services
Heat exchangers are commonly used in a wide variety of industrial, chemical, and electronics processes to transfer energy and provide required heating or cooling.
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Heat and energy recovery systems recover useful energy in one of several forms for use in a related or unrelated process system. This energy can be recaptured from heat, flow, pressure, and/or gases.
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Learn more about Heat and Energy Recovery Systems
Plate forming services cut, roll, form, and weld metal plates, typically greater than 3/16".
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Economizers are mechanical devices that are designed to reduce energy consumption, or to perform other useful, energy-related functions (such as preheating fluids).
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Heat pipes are self-contained heat pumps that can transport heat at high rates over fairly substantial distances with no external pumping power.
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Product Announcements
Topics of Interest
M Ahmed B Lamb,
APV Systems
32.1 The APV Paraflow Heat Exchanger
While the original idea for the plate heat exchanger was patented in the latter half of the nineteenth century, the first...
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A gasket is a material or combination of materials designed to clamp between the
mating faces of a flange joint. The primary function of gaskets is to seal the irregulari-
ties of each face of the...
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Chapter 1: Heat Conduction
Figure 1.1: One-dimensional heat conduction in a solid
Figure 1.2: Differential volume element used in derivation of conduction equation
Figure 1.3: Heat...
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Flanged End Connections
Flanged valves are perhaps the most widely used. Flanges used to mate valves with adjacent piping and/or equipment must conform to the following:
They must provide sufficient...
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Shell and tube (tubular) heat exchangers are used in applications where the demands from high temperatures and pressures are significant. Tubular heat exchangers are also used with fluids that contain...
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