RAPID RESPONSE ELECTRIC HEAT EXCHANGER

Compact, Rapid

Heating of Gases, Vapors and Liquids for Precision Applications

Watlow has developed an innovative circulation heater solution for applications that demand precise temperature control for gases and other fluids. The RAPID RESPONSE Heat Exchanger provides faster thermal response and higher power in a smaller footprint when compared to most other conventional circulation heaters. Add to this the value of high pressure operating capabilities in custom formations and integrated sensing with Watlow sensors and controllers and you will quickly see the advantages of using the RAPID RESPONSE Heat Exchanger.

This patent-pending product was developed around Watlow’s high quality WATROD electric heating element placed inside of a tube designed to specifically accommodate your process pressure and temperature. A wide range of special fittings on the ends of the outer tube facilitates transition of both the fluid and WATROD electrical terminations.

The intimate contact of the WATROD element with your fluid and the low thermal mass of the overall system result in high-energy efficiency and fast response. If needed, appropriate molded insulation packages can be added for efficiency improvements or touch-safe protection. The design of this product tends to enhance the circulation of your gas or fluid because of the excellent convective film coefficients created, even at lower flow rates.

If your application demands precise temperature control, let the RAPID RESPONSE Heat Exchanger provide the thermal response, wattage and space savings you need. High operating pressure will not be an issue. Add integrated sensing with Watlow sensors and controllers and you will have a complete thermal solution.

Applications

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Solvent replacement

•

Gas heating

• Fuel cell gas heating

•

Supercritical fluids

•

Parts cleaning

•

Humidity generation

•

Biomass extraction

•

Bio reclamation

•

Refrigeration systems

•

Aerospace, food and

•

Epoxy resin

 

deionized water heating

 

components

 

 

Patent Number: U.S. 6,944,394 B2

Features and Benefits

Compact size and lightweight design

•Reduces the physical space required by other circulation heater technologies substantially

Fast thermal response

•Allows low flow conditions to be efficiently heated

High and low working pressure availability

•Provides a wide range of operating pressures

Low internal volume

•Increases heater efficiency significantly

•Minimizes overall system volumetric impact

Use with gases and liquids

•Assures effectiveness in all media states

Specifications

•Up to 30 amps in compact configurations

•Process temperatures up to 600°C (1200°F)

•Operating pressure up to 411 bar (6000 psi)

•Standard 208 Volt (120-480 Volt 1-phase and 3-phase capability)

•Optional finishes include: electro polished, bright annealed, passivated

•Integral inlet/outlet RTD or thermocouple sensors

•Standard 0.25 in. (6.35 mm) NPT low pressure fitting (standard and specialized process fittings are available and chosen by pressure and formation)

•Materials of construction – 304 and 316L Stainless Steel, Incoloy®, Copper

•Outside tube diameters: 0.5 and 0.625 in. (13 and 16 mm)

•Trim length and electrical terminations consistent with typical WATROD options

•Bend radii – 0.625 in. (16 mm) for flat bends, 2 in.(51 mm) inside diameter for coiled bends

•Insulation materials available – foam rubber, castable ceramic and fiberglass

Incoloy® is a registered trademark of the Special Metals Corporation.

 

HAN-RRHE-0807