The thermal conductive salt blind end is completely blocked; are the following methods feasible?
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We use a heat-conducting salt with a melting point of around 180 degrees, and there is a pressure of 0.2 MPa inside the salt pipeline. There is a dead end in the design; this dead end does not have a jacket for heating, while all other pipe sections do. As a result, that dead end tends to get blocked. However, due to the lack of additional jackets, they came up with a solution – they fill that dead end with nitrogen, using the nitrogen to keep it closed. But the pressure cannot be too high, otherwise the salt will be blown away, causing severe overheating of the system and leading to shutdown. PS: But if the temperature issue isn’t resolved, is it useful to use nitrogen? I feel like it’s normal for this salt to condense when it comes into contact with cold; using nitrogen doesn’t help at all. . What do you all think of this method? Are there any other solutions? (We also want to add a jacket, but the material hasn’t arrived yet; it will take a long time before it gets here.)
1. Electric heating is added to the blind end. 2. During maintenance, remove the blind end and replace it with a reduced-diameter section.
1. For technical upgrades, use DN20 pipes that are bent; a spiral-shaped heat tracing blind end is then created at the bottom of the jacket, along with a small steam trap to direct the condensate to an appropriate location for discharge. 2. If this dead end is not useful, it can be left blocked; after all, it won’t cause any harm. 3. If nitrogen can be introduced, can the molten salt flow out? Tubes can be used to maintain the flow of the molten salt.