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AI智控全链赋能|破解脱硝ABS堵灰腐蚀难题,中工数联助力电厂智慧稳运升级

AI智控全链赋能|破解脱硝ABS堵灰腐蚀难题,中工数联助力电厂智慧稳运升级


在燃煤机组绿色低碳转型与智能化深度改造的行业趋势下,氨逃逸失控、硫酸氢铵(ABS)沉积堵灰、空预器/低温省煤器低温腐蚀、环保系统协同失衡、输渣环节人工依赖度高等核心痛点,长期制约机组安全运行、能效提升与环保达标。

北京中工数联科技有限公司立足电厂实际运行工况,以AI智能调控为核心技术引擎,打造SNCR+SCR双级脱硝、空预器防堵防腐、低温省煤器余热智控、脱硫脱硝除尘协同、输渣设备全流程智能化一体化解决方案,从源头扼制ABS生成,打通设备运行全链条数据壁垒,实现精准控氨、主动防腐、高效节能、智能运维,为燃煤机组高质量发展提供硬核技术支撑。

一、SNCR+SCR双级脱硝·AI智能喷氨调控:从源头扼制ABS生成

炉内SNCR+尾部烟道SCR双级脱硝是电厂氮氧化物治理的主流工艺,也是ABS生成的核心源头环节。传统脱硝系统高度依赖运行人员经验调控,在煤质频繁波动、锅炉负荷20%-100%大范围调峰的复杂工况下,人工无法实时匹配喷氨量与炉膛燃烧状态,极易出现喷氨不均、局部过量、氨逃逸率居高不下等问题。逃逸氨与烟气中SO₃快速反应生成大量硫酸氢铵,为后续空预器堵灰、设备腐蚀埋下致命隐患。

北京中工数联AI智能喷氨调控系统,通过多源数据感知、机理模型与AI算法融合实现精准控氨:系统实时采集锅炉负荷、炉膛多维温度场、烟气流速、入口NOx浓度、出口氨逃逸等全维度运行数据,采用“知识与数据协同驱动”建模技术,结合热力学机理与数据驱动算法,构建污染物浓度超前预测模型。依托LSTM神经网络AI预测算法,可提前15分钟预判排放趋势,自动优化SNCR喷射角度、喷射量、雾化粒度,保障炉内还原反应高效充分;同时与尾部SCR系统智能联动,实现分区精准喷氨。

系统具备自适应增量学习能力,可适配煤种切换、生物质/污泥掺烧等特殊工况,自动更新模型参数,始终保持最优脱硝效率。经实际应用验证,该方案可使氨逃逸率降低40%以上,从根源大幅减少ABS生成量,在确保NOx稳定超低排放的同时,切断堵灰与腐蚀的核心诱因。

二、空预器·AI智能监控防堵防腐:根治ABS堵灰与低温腐蚀

空预器作为锅炉关键换热设备,ABS在其低温段的粘结沉积,是导致设备差压异常升高、频繁堵灰、换热元件腐蚀穿孔的首要原因。传统运维采用固定周期蒸汽吹灰模式,盲目低效、能耗浪费严重,无法根据ABS实际沉积速率精准干预,始终无法根治堵灰与腐蚀问题。

北京中工数联AI智能监控系统,构建全天候监测、智能决策、主动防控的全流程管控体系:通过多模态传感器网络+红外热成像仪,7×24小时实时监测空预器进出口烟温、关键点壁温、运行差压,精准识别积灰引发的局部换热异常。AI算法融合氨逃逸数据、SO₃浓度推算值、温度场参数,实时预测ABS沉积趋势与粘结露点,智能调控暖风器投运策略、冷热风配比,确保空预器冷端壁温持续高于ABS露点,从运行条件上避免ABS凝结附着。
同时,系统摒弃传统定期吹灰模式,采用自适应精准吹灰策略,根据积灰模型预测结果,在最佳时机以最优强度执行吹扫,大幅提升吹灰效率、降低能耗。结合数字孪生虚实映射技术,系统可提前预警低温腐蚀风险,主动调整运行参数规避高危区间,有效延长空预器使用寿命,保障设备长期稳定高效运行。

三、低温省煤器·AI智能调控:协同防腐与余热最大化回收

低温省煤器是电厂余热回收的关键设备,长期面临安全与能效难以兼顾的行业难题:若一味追求低排烟温度、最大化回收余热,管壁温度易低于酸露点与ABS粘结温度,引发严重腐蚀与粘灰;若为保障设备安全提高壁温,又会造成余热回收不充分、排烟热损失增大。传统调节方式孤立、滞后,无法与上游脱硝、空预器系统协同联动。

北京中工数联AI智能调控系统,打破设备间信息孤岛,实现全局协同、动态控温、能效最优:系统联动脱硝氨逃逸数据、空预器运行状态、锅炉负荷指令,对低温省煤器实施前瞻性协同调控。核心通过智能算法动态计算并精准控制管壁温度,使其始终稳定在无腐蚀、无粘灰的安全运行窗口,通过调节烟气旁路开度、给水流量、换热配比,在保障设备安全的前提下,无限逼近理论最佳余热回收温度。

AI算法持续进行能效寻优计算,动态平衡余热回收收益与系统能耗,最大限度降低排烟损失,提升机组整体经济性,真正实现防腐安全与节能增效双向共赢。

四、脱硫脱硝除尘·AI智能协同:环保提标与降耗减耗

电厂环保岛(脱硝、脱硫、除尘)各系统传统模式下独立控制、缺乏协同,极易出现“顾此失彼”的运行困境:为降低NOx过度喷氨,会加剧ABS生成、增加氨耗;脱硫浆液循环泵盲目运行,导致厂用电耗居高不下,整体运维成本持续偏高。

北京中工数联打造一体化AI协同管控平台,将脱硝、脱硫、除尘系统视为统一整体优化:平台实时融合入口污染物浓度、烟气流量、温湿度等多源数据,在满足NOx<50mg/m³、SO₂<35mg/m³、粉尘<10mg/m³超低排放硬约束下,运用多目标优化算法,同步调控喷氨量、浆液pH值与循环量、除尘电场功率等关键参数。

通过前馈-反馈复合智能控制,有效平滑污染物排放波动,杜绝瞬时超标,实现长期稳定达标。实际应用中,智能喷氨系统可使喷氨量下降30%-40%,年节约药剂费用可达百万元级,在环保提标的同时,实现物耗、电耗最小化,大幅降低环保运维成本。

五、输渣设备·AI全流程智能管控:迈向无人值守安全稳运

锅炉尾部输渣系统作业环境恶劣,传统模式依赖人工巡检与现场操作,存在劳动强度大、安全隐患高、堵渣故障发现滞后、设备磨损快等问题,直接影响机组连续稳定运行。

北京中工数联以AI视觉识别、边缘计算、数字孪生为核心,打造输渣设备全流程智能管控方案:部署工业级AI视觉监控设备,实时识别渣量、渣粒大小,精准监测堵渣、漏渣等异常状态,彻底替代人工盯盘。基于振动、电流、温度等传感器数据,通过机器学习算法预测碎渣机、输渣皮带等关键设备故障风险,实现预测性维护。

系统可根据锅炉负荷与燃烧工况,自动调整挤渣频率、输渣速度、冷却风量,实现全流程自适应运行。同时构建输渣系统数字孪生模型,通过虚拟仿真优化控制策略,支撑远程智能运维,最终实现输渣环节无人值守、安全稳运、降本增效的目标。

北京中工数联科技有限公司以AI技术为核心,深耕电厂智能化改造领域,打通脱硝控氨—空预器防堵防腐—低温省煤器余热智控—环保岛协同增效—输渣智能运维全链条,从源头破解ABS堵灰腐蚀、能耗偏高、运维粗放等行业顽疾,助力燃煤机组实现环保提标、节能降耗、安全稳运、降本增效的综合价值。

未来,我们将持续迭代技术、优化方案,为智慧电厂建设与能源绿色低碳转型,提供更专业、更高效、更可靠的智能化解决方案。

合作咨询

📞 联系电话:15966896787
🏢 公司名称:北京中工数联科技有限公司
💡 专注电厂智能脱硝、空预器防堵防腐、低温省煤器智控、输渣智能化全场景解决方案,欢迎技术交流、项目合作!

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  1. CONNECT:[ UseTime:0.000990s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001617s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000352s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000355s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000793s ]
  6. SELECT * FROM `set` [ RunTime:0.003614s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000859s ]
  8. SELECT * FROM `article` WHERE `id` = 524710 LIMIT 1 [ RunTime:0.000465s ]
  9. UPDATE `article` SET `lasttime` = 1776164155 WHERE `id` = 524710 [ RunTime:0.008433s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000304s ]
  11. SELECT * FROM `article` WHERE `id` < 524710 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000485s ]
  12. SELECT * FROM `article` WHERE `id` > 524710 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000440s ]
  13. SELECT * FROM `article` WHERE `id` < 524710 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000802s ]
  14. SELECT * FROM `article` WHERE `id` < 524710 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000892s ]
  15. SELECT * FROM `article` WHERE `id` < 524710 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.005937s ]
0.200914s