Hydrogenation reaction off-gas exhaust system
CN224686840UActive Publication Date: 2026-08-28SINOPHARM CHONGQING PHARMA & MEDICAL IND DESIGN INST
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Patent Information
- Application Number
- CN202522248584.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-10-24
AI Technical Summary
Technical Problem
[0003]氢化反应车间起火、爆炸等事故频发，造成过许多难以挽回的经济损失和人员伤亡
Benefits of technology
1、氢化反应尾气排放系统包括反应釜，还包括泄爆罐、液封罐、第一尾气管、第二尾气管、第一旁路，其中，反应釜提供原料的氢化空间，泄爆罐用于在反应釜内反应失控时，对反应釜泄压，确保反应釜的安全，液封罐用于在反应结束后，排放反应釜内的尾气（主要为残留的氢气），避免空气进入反应釜发生事故。所述泄爆罐的顶部设置有第一排气管、液封罐的顶部设置有第二排气管，且第一排气管上设置有第二爆破片，进入泄爆罐、液封罐的尾气分别经第一排气管、第二排气管排空。所述第一尾气管、第二尾气管的上游端连接在所述反应釜的顶部，所述第一尾气管上设置有第一爆破片，下游端与泄爆罐连通，当反应釜内反应失控，压力过大时，超过第一爆破片的开启压力，反应釜通过第一尾气管、泄爆罐、第二爆破片对外紧急泄压。第二尾气管上设置有第二阀门，下游端与液封罐连通，且位于液封罐的液面以下，当反应结束后，可通过开启第二阀门，使反应釜内残留的氢气经第二尾气管、液封罐正常排放。所述第一旁路的上游端连接在第一尾气管上，位于第一爆破片的上游，下游端连接在第一尾气管上，位于第一爆破片的下游，第一旁路上设置有手阀，所述反应釜通过第一管路与氮气源相连，第一管路上设置有第三阀门，通过第二管路与真空源相连，第二管路上设置有第四阀门，反应釜投料前，先开启第四阀门、手阀，对泄爆罐、反应釜抽真空（第二爆破片对第一排气管形成封闭），将其中的空气（氧气）排空，然后关闭第四阀门，开启第三阀门，充入氮气至压力正常，对泄爆罐、反应釜进行氮气置换后，关闭手阀、第三阀门，如此可大幅降低泄爆罐、反应釜内的氧含量，减少火花产生的可能性，保证反应安全。
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Figure CN224686840U_ABST
Abstract
A hydrogenation reaction tail gas discharge system, including a reaction kettle, further comprising a relief tank, a liquid seal tank, a first tail gas pipe, a second tail gas pipe, a first bypass, the upstream end of the first tail gas pipe and the second tail gas pipe are connected at the top of the reaction kettle, a first rupture disc is arranged on the first tail gas pipe, the downstream end is communicated with the relief tank, a second valve is arranged on the second tail gas pipe, the downstream end is communicated with the liquid seal tank and is below the liquid level of the liquid seal tank, the upstream end of the first bypass is connected on the first tail gas pipe and is upstream of the first rupture disc, the downstream end is connected on the first tail gas pipe and is downstream of the first rupture disc, a hand valve is arranged on the first bypass, the reaction kettle is connected with a nitrogen source through a first pipeline, a third valve is arranged on the first pipeline, is connected with a vacuum source through a second pipeline, and a fourth valve is arranged on the second pipeline.The hydrogenation reaction tail gas discharge system has the advantages of simple structure, low transformation cost and effective guarantee of hydrogenation reaction stage tail gas discharge safety.
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