Heat exchange network applied to ethylene glycol rectification section

The invention discloses a heat exchange network applied to an ethylene glycol rectification section. The heat exchange network comprises an ethylene glycol concentration tower or an ethylene glycol recovery tower or a dealcoholization tower or an ethylene glycol product tower, a condenser, a cryocooler and a reflux tank, wherein the top of the ethylene glycol concentration tower or the ethylene glycol recovery tower or the dealcoholization tower or the ethylene glycol product tower is connected with the condenser through a pipeline, the condenser is provided with a circulating cooling medium inlet and a circulating cooling medium outlet, the cooled medium outlet and the cooled medium inlet, the condenser is respectively communicated with the cryogenic cooler and the reflux tank, and the cryogenic cooler is communicated with the reflux tank. Wherein the reflux tank is communicated with the ethylene glycol concentration tower or the ethylene glycol recovery tower or the dealcoholizationtower or the ethylene gly