A pollution-proof condenser for producing a pharmaceutical intermediate

CN122217032APending Publication Date: 2026-06-16HUBEI LANSUN BIOCHEM PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-21
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

During the condensation process, residual liquid tends to adhere to the inner wall and bottom of the condenser tubes in existing pharmaceutical intermediate production condensers, leading to product contamination and reduced purity. Furthermore, cleaning the blockages requires shutting down and disassembling the equipment, affecting production continuity and increasing maintenance costs.

Method used

A contamination-resistant condenser was designed, comprising a drive motor, a stirring mechanism, a condensing mechanism, a piston backflushing anti-clogging mechanism, and a filtration mechanism. Through high-pressure steam backflushing and stirring, rapid cleaning and solid-liquid separation are achieved inside the condenser tubes, avoiding residual liquid contamination and ensuring continuous operation of the condenser.

Benefits of technology

It effectively prevents residual liquid in the condenser tube from contaminating subsequent products, ensures production continuity, reduces maintenance costs, and improves condensation efficiency and product purity.

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Abstract

This invention discloses a contamination-proof condenser for the production of pharmaceutical intermediates, belonging to the field of pharmaceutical manufacturing technology. The invention comprises a drive motor, a push crankshaft, a reciprocating push frame, a piston cylinder, and a sealing plug. High-pressure steam is injected at high speed into the splitter frame from the connection between the piston sleeve and the splitter frame, and then evenly enters six condenser tubes. The high-pressure backflow generated by the reciprocating piston movement of the piston cylinder flows at high speed along the axial direction of the condenser tube from the inlet end, quickly blowing away residual liquid adhering to and deposited inside the condenser tube. This prevents liquid residue from remaining on the tube wall and bottom, eliminating contamination of subsequent processed products and ensuring the condenser tube is clean and residue-free. Simultaneously, the return spring pushes up the elastic plug, precisely engaging with the bottom of the condenser tube, allowing steam to accumulate as it condenses inside. During backflow, the air pressure pushes up the elastic plug, causing the accumulated condensate inside the condenser tube to be discharged into the liquid collection rack.
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