Liquid chlorine vaporizer temperature issue
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The full vaporization process of liquid chlorine using coil-type or sleeve-type vaporizers is recommended; the vaporization temperature of liquid chlorine must be no lower than 71°C, with a recommended control temperature for hot water of 75–85°C. A special vaporizer (steam-heated) is used, with the temperature to be no higher than 121°C. The vaporization pressure is under interlocked control with the feed control valve, while the vaporization temperature is under interlocked control with the steam control valve. I would like to ask why the temperature must not exceed 121 degrees?
When the temperature reaches 121°C, the saturated vapor pressure of chlorine reaches 5.4 MPaG, resulting in an excessively high level of danger
Could you be a bit more specific? I’m worried that the vaporization process might get out of control too quickly
Corrosive gases become more corrosive at high temperatures. Corrosion of dry chlorine at temperatures below 121°C is not a serious problem; chlorine can be handled under these conditions using the most common structural materials. When the temperature is above 121°C or in the presence of humid chlorine, the corrosion of cast iron, carbon steel, and even stainless steel accelerates. Dry chlorine causes electrochemical corrosion, while wet chlorine causes oxidative corrosion.
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