Condensing unit for solvent recovery

Abstract

The invention belongs to the field of solvent recovery equipment and specifically relates to a condensing device for solvent recovery. An inlet pipe and an outlet pipe are fixedly connected with a ring, a circle of concentric cooling water pipes are arranged in an inner wall of the ring, a plurality of rotatable impellers are arranged in the cooling water pipe, a rotary disk is hinged to the circle center of the ring, a transfer pipe is arranged in the middle of the rotary disk, the transfer pipe can be communicated with the inlet pipe and the outlet pipe, condensing pipes are arranged on thetwo sides of the transfer pipe, the rotary disk abuts against the inner circle of the ring, an annular groove communicated with the cooling water pipe is arranged on a lateral wall, opposite to the rotary disk, of the ring, a water exchange opening communicated to the condensing pipes is arranged at the contact position between the rotary disk and the annular groove, a boost pipe is further arranged outside the ring, a storage pipe is further arranged on one side, symmetrical with the boost pipe, outside the ring, the transfer pipe can be connected with the boost pipe and the storage pipe, andthe rotary disk is driven by a motor. By means of a unique condensing mechanism design, the condensing unit disclosed by the invention effectively improves a solvent condensing effect and enhances equipment liquidity.

Description

technical field [0001] The invention belongs to the field of solvent treatment, in particular to a condensing device for solvent recovery. Background technique [0002] Distillation is a thermodynamic separation process. It utilizes the different boiling points of the components in the mixed liquid or liquid-solid system to evaporate the low-boiling components and then condense them to separate the entire components. There are two types of evaporation and condensation. A union of unit operations. Compared with other separation methods, such as extraction, filtration and crystallization, its advantage is that it does not need to use other solvents other than the system components, so as to ensure that no new impurities will be introduced. [0003] When the current distillation equipment is working, after the corresponding solvent is distilled out, the distilled solvent needs to be condensed and stored. At present, the spirally wound cooling water pipe is generally used to co...

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Problems solved by technology

[0003] When the current distillation equipment is working, after the corresponding solvent is distilled out, the distilled solvent needs to be condensed and stored. At present, the spirally wound cooling water pipe is generally used to condense the solvent. This condensation method mainly has the following disadvantages : 1. The cooling water pipe continuously cools the gaseous solvent. There is a large temperature difference from the inlet to the outlet of the solvent. There is no buffer time when the solvent is cooled, which makes the cooling effect of the gaseous solvent not good;

[0004] 2. When the solvent is cooled and then enters the storage bottle or storage tube, due to insufficient pressure or back pressure, all of the solvent cannot enter the condenser tube, causing a part of the solvent to accumulate at the interface, which hinders the circulation of the equipment

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