The 71 position that just began rectification tower still calculate stabler, but appeared to wide the tower is mixed however to the later period of rectification process those who develop a tower is undesirable, bring about rectification to cannot continue. This two big questions have what kind of show respectively, what is the reason of generation each, what is the means of processing, it is clear that this needs to be analysed one by one.
In process of rectification tower rectify, the liquid begins to be accumulated gradually from some paragraph, be full of partial tower then paragraph, make rise aeriform suffocate suffocate, make of two-phase of gas, fluid pass conduct heat character process cannot on the rails. Not only such, temperature of rectification tower cat head will drop gradually, the fluid face of circumfluence canister also drops; But face of tower bottom fluid and pressure however heighten.
Afore-mentioned phenomena are tower of so called adj/LIT wide, two respects reason can cause rectification tower to produce similar problem, it is to sedimentation on one hand the canal is blocked up dead, circumfluence fluid cannot indelicacy; Still having is the liquid in rectification tower on one hand the amount is too large, make fall fluid canal excess load moves.
Face the account that exists possibly, want what reduce rectification tower appropriately to enter makings quantity and capacity of returns not only, and the breakdown that should exclude equipment, rectification tower just can restore after solving use.
And in be being operated when rectification tower, bear of gas fluid photograph crosses big case to fall, be full of when the liquid whole fall when fluid is in charge of, fluctuation tray becomes repeatedly, fractional distillation is destroyed completely, can appear strong tower. This shows, forming bear of photograph of fluid of the gas inside the tower to cross big factor also is the reason place of strong tower.
Want to handle this kind of issue of rectification tower, the key still should drop steam fluid negative charge; Can interrupt when necessary into makings, shut tower bottom to heat vapour, treat each tower dish after temperature fall after a rise arrives under normal value, heat afresh again, into makings, make its return to normal operation.