Liquid air separation plant liquid hub area piping arrangement is mainly oxygen, nitrogen, argon liquid pipeline and pump box in the liquid pipeline arrangement. As oxygen, nitrogen, argon liquid temperature is extremely low (liquid oxygen -183 ° C ℃, liquid nitrogen -196 ° C, argon liquid -185.7C), in the liquid flow process, resulting in a certain amount of gasification, piping should pay attention to the slope of the liquid pipeline towards (no slope requirements on the process).
In the design of liquid air separation plant for liquid air, there are many requirements for the piping of liquid pipelines, and attention should be paid to the design standards and specifications of liquid air enterprises. In the pipeline of the cryogenic liquid pump inlet, no gas pockets (although the height of the gas pockets should be lower than the bottom of the cryogenic liquid storage tank) or liquid pockets should be formed. Once an air pocket or liquid pocket is formed, the cryogenic liquid air separation plant pump cannot be started normally, and even if it can be started normally, it will cause cavitation of the cryogenic liquid pump and shorten the life of the pump. Pump box piping is also the same, the pump inlet piping as short as possible, pump box wall to use bubble glass brick to low temperature piping and carbon steel pump box separated, if not done well, low temperature liquid through the pump box will form frost on the outside of the pump box, so that the loss of cold caused by low temperature liquid vaporization. All supports inside the pump tank are made of stainless steel and separated by red pine blocks.
Dear air separation equipment manufacturing and piping production has a wealth of experience, in the design process, process, piping and stress professional close cooperation, so that the safety and economy of liquid air separation plant and piping design to achieve perfect unity.
