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This post was last edited by sunjl1981 on 2013-1-7 00:22. A newcomer has a question: We are building a new plant and are using the low-temperature, low-pressure method. During startup and normal operation, is it necessary to maintain a certain liquid level in the liquid chlorine separator in the liquefaction section? It seems the separator doesn’t have a liquid seal or a level gauge? The liquid inlet pipe of the chlorine storage tank seems to be inserted at the bottom of the tank. # hcbbs
The medium-temperature and medium-pressure method is not used, but I’m not sure about the low-temperature and low-pressure method specifically?
In my opinion, any storage tank or container should be equipped with a level gauge. It might not be useful on a daily basis, but during maintenance or repairs, it will still be necessary
Our high-temperature and high-pressure method features a U-shaped liquid seal; I believe a similar mechanism should also be available for the low-temperature and low-pressure method. Our original process was the low-temperature and low-pressure method; since I wasn’t in that position at the time, I didn’t pay much attention to it.
Do you mean a liquefied gas-liquid separator? It is all wrapped in insulation material; there is no level gauge. If the liquid chlorine downcomer gets blocked, it can be detected from the valve, and freezing does not occur.
The liquefaction of liquid chlorine generally relies on gravity for separation; a gas-liquid separator is not necessary. The liquid chlorine flows directly into the liquid chlorine storage tank. When feeding liquid chlorine into the tank, the pressure in the tank is equal to the pressure of the liquefied off-gases, and the liquid chlorine enters the tank due to the difference in pressure. This post was last edited by limingshuguang on 2009-4-11 11:27.]
The original poster is right; a level gauge isn’t necessary in conditions of low temperature and low pressure. The inlet pipe needs to be inserted all the way to the bottom. May I ask which factory you are from...
There’s no need for that; he doesn’t require a level control system, just like in a buffer tank – it’s not necessary.
Thank you all for your help. I’ve learned it; I’m from Chongqing Ying Tian Hui
No need; it’s just a buffer tank to maintain even pressure balance
An external pipe equivalent to a communicating vessel can be added
No, our liquid chlorine production process uses a low-temperature and low-pressure method; after passing through the liquefier, the liquid is fed directly to the bottom of the liquid chlorine storage tank via the gas-liquid separator, taking advantage of the pressure difference !