Does applying sealant affect the outlet temperature of the branch furnace?
Thread Content
Recently, it was discovered that the flow meter for one of the branches in our pressure reduction furnace is not functioning properly; the fluid used by the instrumentation staff to seal the system affects the outlet temperature of that branch. The temperature jumped from around 400 degrees to nearly 430 degrees, before gradually returning to normal. This phenomenon had not been observed before, and I haven’t had the chance to discuss it with the instrumentation staff recently. I suspect that they may have used too much of this sealing fluid, and since its specific heat is low, it affects the outlet temperature. I’m also not sure whether they have changed the type of fluid used for sealing. Has anyone else encountered this problem? Is my explanation correct? Is this phenomenon serious?
This is normal. The instrument isolation fluid is water or light oil components, etc.; when it enters the heating furnace, the furnace temperature rises and experiences large fluctuations. We encounter it often too.
Normal; it’s best to change the temperature control to manual when applying sealant.