Design issues of vacuum systems
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For a distillation tower that needs to operate under certain vacuum conditions, how can one determine the pumping capacity of the system’s vacuum pump based on the size of the system, in order to meet the requirements of the production process? What standards and experiences are available for reference? Experienced users are invited to discuss this issue.
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One can refer to chemical engineering handbooks; the calculation of vacuum level depends on various factors such as the volume of the tower, different temperatures, the degree of vacuum, the pipes used, as well as practical experience in understanding the relevant process and the temperature of the cooling water, among others. It would be best to describe your process conditions in detail so that we can discuss them together.
First: What to steam. Determine temperature and pressure; secondly: determine system leaks.
Here’s an example for your reference: For a 4-cubic-meter tower reactor, the loading volume is usually a little over 3 cubic meters; the tower diameter is 400 mm. Vacuum pipes are typically connected using flanges. The material used is ethylene glycol, and a 5.5 Kw W3 pump is sufficient to meet the requirements, with an exhaust rate of 55 L/s.