High-concentration voc cryogenic liquid solvent recovery device
By designing a multi-temperature zone evaporator and condensation mechanism, combined with a rotating scraper cleaning assembly, the clogging problem in the high-concentration VOC condensation and recovery process was solved, achieving efficient VOC solvent recovery and stable equipment operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LONGWEI ENVIRONMENTAL TECH (ZHEJIANG) CO LTD
- Filing Date
- 2026-03-25
- Publication Date
- 2026-07-17
AI Technical Summary
In the treatment of high-concentration VOCs, during the condensation and recovery process, the liquid film condenses on the surface of the heat exchanger to form frost-like crystals, which leads to a reduction in the air passage space, an increase in air resistance and thermal resistance, and even blockage, affecting the system's cooling capacity.
A high-concentration VOC cryogenic liquid solvent recovery device was designed, which adopts a multi-temperature zone evaporator and condensation mechanism, combined with the evaporation mechanism and cleaning components, to achieve precise segmented evaporation and efficient condensation of VOC components. The condensation residue is cleaned by a rotating scraper to avoid blockage.
It improves the purity of VOC component separation, ensures stable condensation efficiency, extends equipment operating time, reduces downtime maintenance, and prevents system blockage.
Smart Images

Figure CN122399384A_ABST