Energy from waste solves two prime issues, the first is creation of energy, which is always in demand, and the second the capability deal with waste disposal, an increasing and pressing issue, as landfills continue to cause more and more problems.
As is evident, the advantages of owning and operating an EfW plant are great, however there’s a drawback that relates directly to the topic of the report.
One of the major regions of concern comes into play due to the harsh conditions present inside the boiler itself. Because of the waste being burned, conditions within the boiler can get rather intense, and because of this cause rapid wear on the internal tubes making up the most crucial area of the boiler. You can also browse online websites to get more details on “Importer and distributor of steel pipes and valves” (which is also known as ” “ผู้นำเข้าและจัดจำหน่ายท่อเหล็กและวาล์วต่างๆ” ” in Thai language )
These conditions mean constant care is required, and a careful eye kept on the thickness of the tubes inside.
Tube inspection is usually carried out at predefined intervals when the plant is shutdown, and once erosion rates are established. For more additional info about Seamless Carbon Steel Pipe (SML) check out online websites.
There are many procedures of inspection, and ultrasonic thickness survey and LFET (Low frequency Electromagnetic Technique) rate one of the most efficient, informative and reliable, for carbon steel, stainless (various grades) and almost any other metallic tube material.
Usually, a survey of the most at risk tubes will be analyzed, I.E 2-5 tubes back in all moves, where access permits.
With ultrasonics, 3 spot readings are usually taken across the front of the tube at equal spacing, and then at multiple positions to get an average thickness, and minimal thickness. Using this method, it’s quick to identify problem tubes, and either pull or repair the tube quickly.
LFET (Low Frequency Electromagnetic Technique) uses a fast scanner, that offers visual information about the depth of the tube 130 levels across the front of the tube. This is usually conducted at around 10ft/minute, based on accessibility, defects found etc.. This is a more comprehensive technique, in terms of area covered, though may take more than ultrasonic thickness checks, especially for a great number of tubes.