Basic design standards that cannot be ignored in the production of tubular heater
What are the specifications for industrial production heating tubular heater?
1. In the design of the tubular heater, the hazards such as thermal expansion and contraction, ablation, air oxidation, and creep must be considered to prevent common failures caused by deformation and other problems in all normal work.
2. The design scheme of the tubular heater structure should ensure that the maximum temperature of the raw materials used in the production of the tubular heater or the maximum temperature that will be encountered during its production and processing will not be destroyed, and it can still work reliably.
3. The overall design of the electric welding of the tubular heater should comply with the relevant specifications. The welding of the stressed tubular heater is very much a part of the vessel and should be less. The welding setting should be conducive to inspection.
4. The design scheme of the heat-resistant tube housing and the notes must comply with the relevant specifications.
5. The tubular heater (including the beam end) must be sealed.
6. The tubular heater used for the heating of the adhesive substance must use a corrosion-resistant metal hose or a mobile phone case to ensure the working life of the tubular heater.
7. When the shell of the tubular heater is a general stainless steel plate or other alloy products with better properties than the general stainless steel plate, the wall thickness should be not less than 0.35mm. Relative impact toughness makes it fit into extreme office environments.
8. The bent half warp of the heating pipe should not be less than 2.5 times that of the tubular heater.
9. The bending appearance of the tubular heater must ensure that the inner end of the rod is located on a part of the parallel line of the water pipe, and the distance from the bending end point should not be less than 10mm.
10. The thickness of the two cut-off portions of the tubular heater with a potential difference of more than 40V, and the gap between the cut-off portion and the case, and the thickness of the insulation layer filler should not be less than 1mm, and the distance between the exposed lead and the case should not be less than 1mm. . (Note: If there is an agreement, the gap and spacing can be less than 1mm, but the design plan needs to be improved and carefully manufactured to ensure characteristics and credibility)
11. The cross section of the tubular heatere lead-out wire should not be less than 7 times the cross section of the heating wire.