Inlaid spiral finned tube (embedded) equipment product processing requirements
1 Mosaic depth and stability
1.1 Pull-off force test: greater than 8KG or the aluminum strip is torn
1.2 Inlay depth: 0.35~0.5 depending on the wall thickness of the furnace tube
1.3 Stability of inlay: The first pull-off force samples of each shift all meet the requirements of 1.1
1.4 The material of the inlaid pipe is stainless steel and carbon steel, and the wall thickness of the pipe shall not be less than 2mm
1.5 The diameter of the inlaid pipe is DN20~38 (British and American standard according to 1.5 requirements)
1.6 There is no crack or crack on the surface of the pipe after inlaying
1.7 The height of the inlaid piece is calculated according to the diameter of the tube – generally half the diameter of the tube, but not higher than 57 plus or minus
2 Product dimensional accuracy
2.1 Full length of fin segment -5mm ~ +5mm Segmental motion accuracy -0.3mm ~ +0.4mm
2.2 Pitch +0.21mm or more
2.3 Verticality of fins and steel pipes -1 degree ~ +1 degree
2.4 Inlay flatness -0.1mm ~ +0.1mm excluding the height difference caused by the thickness tolerance of the fin itself
2.5 Mounting height difference -0.1mm ~ +0.1mm excluding the height difference caused by the dimensional tolerance of the fin itself
2.6 Under the conditions of the same steel pipe material, the same sheet spacing and number of sheets, the length changes of different finned tubes after inlaying are consistent
3 Tessellation speed
Base tube outer diameter 20~50 depending on tube diameter and sheet distance
The performance characteristics of inlaid finned tubes:
1. It has high stability.
In the specific application process, it can also be found that the stability of the inlaid finned tube is very strong. Due to the special raw materials, in addition to normal use in harsh environments, it can also play a better functional effect. You can look at the stability of the product. As long as the stability is relatively strong, the failure rate can basically be reduced during use.
2. strong corrosion resistance.
In many cases, finned tubes are used in high temperature environments or harsh environments, so they need to have good corrosion resistance to achieve better heat exchange efficiency. When you usually pay attention to products, you can also look at the professional manufacturers in the shopping mall. After understanding the manufacturers in detail, you can also purchase products with confidence to ensure that the products are supported and recognized by more customers in the shopping mall.
Based on the above situation, we can also find that when we choose and buy products, we must look at the functional effect of the L-shaped finned tube itself. Since the product exists in the shopping mall, it can play a very good role as a common heat exchange element. One, it is indeed widely used in high-temperature boilers, and only those with boilers in processing and manufacturing enterprises can use such heat exchange elements.