Is it possible for a breather valve to freeze?
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The amine solution buffer tank has a temperature of around 50 degrees inside; it is hardly used in normal operations, and its breather valve also does not function much. At temperatures of minus 10 degrees Celsius for several consecutive days, is it possible for the breather valve to get frozen by the steam generated inside the tank? If so, how can this be prevented? I seek the guidance of all my brothers. Good luck. . . . . .
For this, you just need to check the solvent manual to see what the freezing point of your amine solution is
Installing electric heat tracing on the breather valve can prevent such situations.
If the temperature drops below that required for solidification and crystallization, freezing will certainly occur; electric heating is a good solution
If there are no conditions for electric heating, use steam instead – you don’t use it very often anyway! ! !
Using steam to blow it away is a practical method; I agree with the person above.
It doesn’t seem to freeze!! I haven’t seen any freezing in the areas where I’ve carried out work. If you’re worried, you can add heat tracing.
It depends on the medium’s freezing point; adding heat tracing can help
Increase to half heat; the breathing valve is crucial – it’s better to have it or not...
It mainly depends on the freezing point of the material. In fact, if the freezing point is below -10 as mentioned by the original poster, there should be no problem; in the projects I’ve worked on, I’ve never encountered any issues with condensation, even in places like Shenyang. Of course, the method of using electric heating mentioned by the brother above is indeed a good one; the original poster can make a decision based on overall benefits and safety considerations
I am very grateful for the help from all my brothers. I’d like to describe my problem again. I’m worried that the water vapor evaporated from the amine solution will freeze on the breathing valve as it comes out of it. Although it is not used often, once it freezes, there is a danger when breathing.
Electric heating is not a good solution; if the electric heating system ages and causes an open flame, it becomes dangerous at the breather valve. It is best to add steam tracing; it is safe and effective
It depends on the condensation point of the medium and the lowest ambient temperature; if it’s necessary, short-circuiting should be considered. The suggestion mentioned above regarding using electric heating is the simplest way to achieve this effect, and I agree with that
An anti-freezing breathing valve can be selected; for extra safety, a hydraulic safety valve can be added.
For breathing valves that are prone to freezing, heating is usually provided. All of the outdoor breathing valves in our company are equipped with steam heating; our products are also those with a high freezing point and are susceptible to freezing.
I think it is appropriate to use steam tracing pipes, and then provide insulation outside the pipes. But under normal circumstances, freezing blockage does not occur. For safety reasons, it’s just about doing more work.
It usually doesn’t freeze, but with the lower temperatures this year, it’s possible. We’ve installed safety valves, so even if it freezes, there’s no problem – it can be thawed out using steam.
It’s possible; mainly because there is material stored inside the breather valve
Prolonged low temperatures are not the cause of freezing; in my opinion, the reason for freezing is the large temperature difference between day and night, which allows for variations in the concentration of substances in the gas phase, thereby leading to crystallization.