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From the point of heat exchange efficiency, apparent board type heat exchanger should compare heat exchanger of type of helix board heat exchanger, envelope to be close friends a lot of, the heat exchange in such wanting that will to be able to conduce to rectification system more for certain works. The result of analysis and practice is same specified amount, choose the board type heat exchanger of proper form, its obstruction also does not affect rectification, return need of can contented craft at the same time, gas of rectify of condensation of big limit ground, achieve energy-saving result.
But original design is not such, system of commonly used rectify sets heat exchanger of 3 gas fluid in cat head, the gas that rectification gives is ordinal pass and realize condensation. The gas that comes out to assure rectification tower rectify can flow normally and condensation comes down, when flow is designed must the heat exchange efficiency of mature heat exchanger, notice gas phase obstruction at the same time, if obstruction passes,can cause rectification tower greatly hold back pressing, job efficiency of flabby, rectify is low problem. Want to be able to avoid the problem through afore-mentioned introductions, the word that tries to transform to equipment is very simple also, it is OK to need to replace the heat exchanger in rectification system replace the heat exchanger in rectification system with board type heat exchanger only. This shows, no matter be the type selecting respect of heat exchanger, still be respect of installation, operation, want to lest affect whole rectify system,do it carefully.