High power infrared emitters from Heraeus Noblelight, fitted with newly developed opaque quartz reflectors, are helping to ensure the bonding of a high-tech polypropylene composite coating on pipeline manufactured using an innovative pipeline construction technology. The custom-built shortwave infrared system is pyrometer controlled to ±3ºC and is moved around the pipe to allow the infrared heaters to be located as close as possible to the pipe surface.
Traditionally, pipeline for the oil and gas sector is manufactured in lengths of 40 ft (12m), with typical wall thickness around 15mm. Completed pipelengths are next sent to pipe coating yards and then transported to site where they are butt-welded together.
The new pipeline construction technology, X200, from Pipestream Inc, a portfolio company of Shell Technology Ventures Fund 1, relies on using a thin-walled pipe for fluid containment, with the pipe’s hoop strength being conferred by strips of martensitic steel which are helically wound around the thin-walled pipe, at diameters up to 24 inch. The assembly is then coated with a suitable coating material, such as polyolefin tape. Pipe manufacture, including coating, is a continuous process producing continuous pipe lengths in excess of 450m. The individual manufacturing stages are fitted within standard ISO containers, so that pipe manufacture can be carried out at point of use, allowing faster installation, shorter project lead times and higher pressure ratings. To date 6 inch diameter pipes having been manufactured subjected to pressure, bursting at 300 bar.
The manufacturing process is a three-stage one. First stainless steel is formed and welded to create the inner liner. The martensitic steel strip is then helically wound on and fixed to the liner by an adhesive. Formerly, this adhesive was cured using high power infrared but latest versions of the technology use an adhesive which cures at ambient temperatures. Finally, a polyolefin tape is helically applied, both for insulation and for corrosion protection. This is bonded to the pipe by an adhesive, and the high power infrared heaters are used to heat the pipe before the coating tape with its adhesive is applied. As the coating tape is a thermal insulator, it is not possible to cure the adhesive through the coating. However, one pair of heaters heats the tape itself to maintain flexibility. There are three pairs of high power short wave heaters arranged around the pipe circumference. These are rotated to match the winding speed and they are zone-controlled by pyrometers to provide hold temperatures to ±3ºC to ensure adhesive curing and to avoid bubbling or over-softening of the coating tape.
The newly developed QRC® infrared emitters used in this application provide high energy short wave radiation rapidly and responsively. Their new quartz reflective coating has a special nano- and micro-structure which provide the reflector with very high diffusion characteristics to ensure the stability of process parameters, such as temperature and coating homogeneity. The emitters operate at around 2000ºC with a power density of 300 kW/m2, enabling them to provide very large amounts of heat rapidly and efficiently to exactly the point of use.
Heraeus Noblelight GmbH with its headquarters in Hanau and with subsidiaries in the USA, Great Britain, France, China, Australia and Puerto Rico, is one of the technology and market leaders in the production of speciality light sources. In 2008, Heraeus Noblelight had an annual turnover of 92.5 Million € and employed 735 people worldwide. The organisation develops, manufactures and markets infrared and ultraviolet emitters for applications in industrial manufacture, environmental protection, medicine and cosmetics, research, development and analytical laboratories.
Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company with over 155 years of tradition. Our businesses include precious metals, sensors, dental and medical products, quartz glass, and specialty lighting sources. With product revenues approaching € 3 billion and precious metal trading revenues of € 13 billion, as well as over 13,000 employees in more than 110 companies worldwide, Heraeus holds a leading position in its global markets.
More information about the Pipestream technology can be found on www.pipestream.com.
Heraeus Noblelight GmbH
phone +49 6181/35-8545, fax +49 6181/35-16 8545
Dr. Marie-Luise Bopp
Heraeus Noblelight GmbH,
phone +49 6181/35-8547, fax +49 6181/35-16 8547
Further reports about: > Emitters > Heraeus Noblelight > High power infrared emitters > Infrared emitters > Innovative Pipelines > Pipestream > Power Plant Technology > QRC® Emitters > high-tech polypropylene composite coating > information technology > infrared light > light source > opaque quartz reflectors > pipeline construction technology > pipelines > precious metals
Etching Microstructures with Lasers
25.10.2016 | Fraunhofer-Institut für Lasertechnik ILT
Applying electron beams to 3-D objects
23.09.2016 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences