Electric heat tracing technology seeks to solve the needs for temperature control and stabilization, not only in process elements such as tanks or reactors, but also in transfer components such as pipes, valves or instruments. It stands out as a clean and efficient system that has proven its low cost compared to other technologies, especially when it is accompanied by custom timing and temperature control.
We supply complete electrical heat tracing systems, from design to installation, supervision and commissioning, including both the specific elements of heat tracing (cables, power systems,…) as well as the control, supervision and integration elements with control systems. of pre-existing plants.
Applications
- Freeze prevention in process piping fluids.
- Improved pumping by reducing viscosity.
- Temperature stabilization and compensation of heat losses in productos especially sensitive to this variation: molasses, chocolate, …
- Temperature recovery after shutdowns.
- Avoid condensation and clogging i ndry powdery materials.
- Gas hydration prevention.
- Avoid formation of hydrates and paraffins in hydrocarbons.
- Underfloor heating.
- Pipeline freezing prevention.
- Prevention of accumulation of snow or ice on roads, paths, roofs, …
- Prevention of freezing on switch changes in railway lines.
Products
- Mineral Insulated (MI) Serial Cable. This type of cable uses single or multiple resistive conductors to create a heating circuit, providing power output proportional to applied voltage, run length, and conductor resistance. This type of conductor is supplied finished from the factory.
- Constant Power Parallel Cable. Heating cables of this type are constructed of two parallel polymer insulated bus cables, with a Nickel alloy wire heating element wrapped alternately along the conductors. These connections are made at the “NODE” point, where the alloy heating element is attached. These cables can withstand temperatures up to 425ºC and can be cut to size.
- Self Regulating Parallel Cable. Is the latest advancement in heat tracing technology and offer maximum versatility. They are designed and built to regulate their production according to the needs of the process, that is, as the process temperature drops, the power delivered by the cable increases and, conversely, as the process recovers temperature, the power delivered by the cable increases. decreases. This cable consists of a polymer core extruded into two parallel conductors containing semiconductor material with a high Carbon content, usually graphite, which allows electricity to flow from one cable to the other and creates infinitely parallel resistances. Core resistance changes proportionally with temperature, and power varies along the wire depending on heater core temperature.
- Skin-tracing: In this system heat is generated on the inner surface of a ferromagnetic heat pipe that is thermally coupled (welded) to the pipe to be heat-traced. A non-magnetic conductive material (typically Copper or Aluminum) is placed inside the heat pipe and connected to the tube at the other end, connecting the tube and conductor to an AC voltage source in series. By applying voltage in this way the current in the conductor flows in one direction and returns through the heat pipe in the opposite direction. The entire current flows on the inner surface of the tube while on its outer surface it is practically absent. It is used in extremely long circuits, with power supply points up to 30km apart.