In the chlor-alkali expansion project, the chlor-alkali company chlorine treatment of the new chlorine gas washing process. In this process, the electrolyzed wet chlorine gas is directly sprayed in the washing tower with the cooled chlorine water for cooling washing. The used chlorine water is collected in the chlorine water storage tank through the bottom of the washing tower, and is heated by the chlorine water pump and heat exchanger to cool down, and then enters the top of the washing tower for recycling. The chlorine water washes the wet chlorine gas, removes impurities (including other impurities such as salt) contained in the wet chlorine gas, and simultaneously reduces the temperature of the wet chlorine gas. Pay attention to the following aspects in this process:
1. The chlorine water level in the chlorine water storage tank should be controlled at about 50%. If the stock is too small, the chlorine water pump will vibrate due to the increase of the suction stroke, and the equipment will be damaged if it is serious; if there is too much stock, it will be caused by abnormal equipment. The storage space is too small to cause passive production.
2. The evacuated pipeline of the chlorine water storage tank must be ensured. If the pipeline is blocked, it will not only cause the water collection at the bottom of the washing tower, but also the pressure of the chlorine gas pipeline to fluctuate drastically.
3, chlorine water cooling temperature should be controlled at about 45 ° C, if this temperature is too high, it will reduce the efficiency of chlorine gas cooling in the washing tower and damage the packing in the tower, so that the packing deformation; if this temperature is too low, in the cycle When the chlorine water is suddenly interrupted, the inlet pressure of the chlorine gas main pipe fluctuates with the temperature of the chlorine gas in the washing tower fluctuating, causing the system to be unstable and causing a production accident.
1. The chlorine water level in the chlorine water storage tank should be controlled at about 50%. If the stock is too small, the chlorine water pump will vibrate due to the increase of the suction stroke, and the equipment will be damaged if it is serious; if there is too much stock, it will be caused by abnormal equipment. The storage space is too small to cause passive production.
2. The evacuated pipeline of the chlorine water storage tank must be ensured. If the pipeline is blocked, it will not only cause the water collection at the bottom of the washing tower, but also the pressure of the chlorine gas pipeline to fluctuate drastically.
3, chlorine water cooling temperature should be controlled at about 45 ° C, if this temperature is too high, it will reduce the efficiency of chlorine gas cooling in the washing tower and damage the packing in the tower, so that the packing deformation; if this temperature is too low, in the cycle When the chlorine water is suddenly interrupted, the inlet pressure of the chlorine gas main pipe fluctuates with the temperature of the chlorine gas in the washing tower fluctuating, causing the system to be unstable and causing a production accident.
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