Why doesn’t the thermal insulation bracket come into direct contact with the pipe?
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Hello everyone: I have a question. For pipes designed for heat retention, their supports can be welded directly to the pipes or fixed to them using clamps. Why, then, do the supports for pipes designed for heat insulation need to be separated using red pine wood? I haven’t been able to figure this out. My own analysis suggests that it might be because, in low temperatures, metals become more brittle and stress concentrations occur, which makes them prone to breaking. That’s why separation is necessary. But if the pipes designed for heat retention are in direct contact with metal supports, wouldn’t heat be lost through the metal?
The main purpose is to prevent cold bridges from occurring, which could lead to heat loss. For insulated pipes, welded pipe supports are generally used in order to save costs; whereas for pipes operating at high temperatures, insulated pipe supports are necessary.
Reply to 2# su*ubin: Hello. So far, I haven’t encountered any situations where it’s necessary to install insulating pipe supports. At what temperature level is it generally required to do so? And what kind of insulating material should be used?
Ordinary insulated pipelines can also be equipped with insulating pipe supports, though the cost is relatively high. These insulating pipe supports are provided by manufacturers, and you can request samples to take a look
Of course, it’s to prevent heat from being transferred through the metal!
In chemical plants, it’s easy to raise the temperature from 20° to 200°, but it’s much more difficult to lower it from 20° to -50°. Much more energy is required to cool down than to heat up. Therefore, it is necessary to prevent cold bridges on cold pipes. If the temperature of your hot pipeline is very high, insulated pipe supports are also necessary.
1. To prevent cold bridges; 2. At extremely low temperatures, the material used for the pipe supports is prone to cracking, and since this material must be the same as that used for the pipes, it increases costs.