Insulation issues for large pipes with reinforcing ribs
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It is a 1.4m large pipeline with reinforcing ribs on the outer side; the gas inside is at 100°C, and insulation is required on the outside. It is estimated that a insulation layer of about 30mm is sufficient, but since the reinforcing ribs are 60mm high, does the insulation layer need to be taller than the height of those ribs? Should the entire insulation layer be made thicker? If the reinforcement bar is 100mm or more, does it also need to be completely covered? That would mean too much insulation material, right?
If the reinforcement protrudes above the insulation layer without providing any insulation, it’s like standing barefoot in the snow wearing a cotton jacket in the dead of winter – all the heat is lost from that reinforcement area. The local insulation layer at the reinforcement strips can be made thicker.
It can be arranged through negotiation according to the user’s needs. If cost is not a concern and aesthetics are important, the heat loss with a thicker version is minimal. If it is standard, it must be wrapped according to the shape changes. If the heat loss due to the reinforcement ribs can be ignored, or if measures are in place to prevent burns, it is possible to leave the reinforcement rings uninsulated. Everything can be resolved through negotiation. But it must be signed by both parties to the agreement to avoid disputes later on. For reference.
It’s mainly because there are too many reinforcing strips; making certain areas taller looks ugly:dizzy:
A very pertinent answer. Indeed, it’s just a matter of spending money; both parties just need to agree.
That is, similar to the insulation treatment at the location of the reinforcement ring on historical equipment
Ring-shaped reinforcement is easy to work with and doesn’t look unsightly, but longitudinal reinforcement is more difficult to handle. Of course, this approach increases the difficulty of insulation installation, and this is probably the key factor; the additional costs resulting from reduced construction efficiency need to be taken into consideration
Without insulation, two phenomena occur: first is the \"hot shoe\" phenomenon mentioned on the second floor, where heat is lost and the insulating effect of the pipes is compromised； Secondly, if the high temperature on the reinforcement bars is exposed, it can easily cause burns, posing a safety hazard.
Habeas corpus is one aspect; in terms of efficiency, such large pipes necessarily require plenty of reinforcement bars. The energy losses resulting from such a large surface area are also not negligible
Actually, the main purpose of insulating this pipeline is to reduce condensation due to temperature drops; burns should not be a concern, as the temperature inside is only around 100 degrees, and the reinforcement bars should not be very hot either. However, for overall aesthetics, it may still be necessary to maintain insulation throughout the process; if this isn’t done, it’s possible that the client will require rework, which would be problematic.