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To provide a technique capable of adjusting heat quantity recovered from an air tower and an amount of carbon dioxide recovered from a fuel tower.SOLUTION: A chemical loop combustion system includes: an air tower for oxidizing metallic particles by causing the metallic particles and gas to react with each other; a fuel tower for reducing the metallic particles by causing the oxidized metallic particles and fuel to react with each other; circulation piping for circulating the metallic particles between the air tower and the fuel tower; and a control section for controlling the chemical loop combustion system. The control section performs adjustment control for adjusting an amount of the metallic particles to be oxidized and an amount of the metallic particles to be reduced.SELECTED DRAWING: Figure 1

The present invention relates to a method for monitoring a solid material circulation process in at least a circulating fluidized bed reactor (10), wherein the method comprises at least the following steps: selecting process variables of the solid material circulation process in a solid material return path (15), and among the selected process variables, selecting performance indicators of the solid material circulation process for each solid material circulation process performance indicator; generating a multivariate model for each performance indicator using historical data of the process variables and performance indicators of the solid material circulation process; determining a modeled value of the performance indicator by applying the currently measured values of the process variables to the multivariate model; and comparing the modeled value of each performance indicator with each measured value of each performance indicator and checking for the presence of an abnormality between the modeled value and the measured value. The method provides the effect of effectively predicting possible problems in the circulation of solid materials so that corrective measures can be taken early enough to keep the process running. The present invention also relates to a control system (48) for monitoring a solid material circulation process in a circulating fluidized bed reactor (10).

本实用新型公开了一种鸭嘴式风帽，涉及排风装置技术的领域，其包括风帽本体和流体床，所述流体床开设有凹槽，凹槽处设有布风板，布风板表面开设有若干透气孔，风帽本体包括上罩盖和下罩盖，下罩盖位于布风板上端部，上罩盖位于下罩盖上端部，上罩盖和下罩盖之间设有连接环，连接环将上罩盖和下罩盖连接在一起，风帽本体内设有若干固定块，若干固定块分别固设于下罩盖的两端，固定块远离下罩盖的一端设有升降杆，升降杆插设于固定块内，且升降杆与上罩盖固定连接，风帽内设有两个转动杆，转动杆两端均固设有滑杆，升降杆下端部沿横向与滑杆滑动连接，转动杆的一端设有带动转动杆转动的转动件。本申请具有提高风帽气流扩散的灵活性的效果。

本发明涉及一种改善进气气流组织的入口段整流结构，包括入口段气流扩张结构、锥环结合的整流器及格栅网，适用于锅炉、风洞等流动控制机构。入口段气流扩张结构由窄到宽，可减缓管道内的高速气流，连接管道与锅炉；整流器包括上游整流锥及下游整流环，整流锥对高速射流起到散射、减速的作用，整流环由多级直径逐渐增大的中空锥台结构组成，引导气流均匀扩散，增加气流均匀度；格栅网进一步降低涡流、调整气流方向。一方面，该结构通过引导气流扩散，有效减少涡流和流动死区，提升流场均匀性，增强热交换与反应效率；另一方面，该结构把管道内高速气体转化为反应器内均匀分布的低速气体，减小对流冲击对后续装置的损坏，减少积碳等的影响，提高设备的可靠性及工作性能。

本实用新型属于循环流化床的技术领域，涉及一种循环流化床锅炉风帽，包括风帽外壳和内芯管；内芯管包括风帽连接段和通风延伸段，风帽连接段上设置有向外延伸的定位凸起，通风延伸段的一端与锅炉内腔连通，通风延伸段的另一端与风帽连接段连接；风帽外壳套设于风帽连接段的外周，且风帽外壳与风帽连接段之间形成通风腔，风帽外壳上设置有与定位凸起相适配的卡槽；本实用新型中，在风帽连接段上设置定位凸起、在风帽外壳上设置与定位凸起相适配的卡槽，实现了风帽连接段与风帽外壳的稳定连接，在锅炉长期运行或遇到较大气流波动、振动等极端工况情况下，避免风帽外壳出现脱落、歪斜等问题，从而提高锅炉运行的稳定性和安全性。

本发明公开了一种用于链条炉的氢‑煤复合燃烧系统，所述氢‑煤复合燃烧系统包括：炉体、链条输送装置和氢气辅助燃烧器。炉体内具有炉腔，链条输送装置用于输送煤，且链条输送装置位于炉体的底部，氢气辅助燃烧器安装于炉体，且氢气辅助燃烧器的喷出端位于炉腔内，氢气辅助燃烧器包括依次间隔设置的中心氢气通道、再循环烟气通道以及内层空气通道，再循环烟气通道环绕在中心氢气通道的外周侧，内层空气通道环绕在再循环烟气通道的外周侧，中心氢气通道与再循环烟气通道之间通过第一间隔壁隔开，再循环烟气通道与内层空气通道之间通过第二间隔壁隔开。根据本发明实施例的氢‑煤复合燃烧系统，该系统产生的火焰覆盖范围较宽，氮氧化物的生成量较低。

The present invention relates to a novel CLC plant and to a novel CLC method employing a cyclone oxidation reactor to oxidize the oxygen carrier.

[Problem] To provide a boiler capable of suppressing fluctuations in the EGR rate. [Solution] According to the present invention, a boiler 1 is provided, comprising a combustion chamber 2, a burner 3 for heating the inside of the combustion chamber 2, a blower 4 for supplying combustion air to the burner 3 via an air intake passage 5, an exhaust gas passage 8 for leading out exhaust gas from the combustion chamber 2, and an exhaust gas recirculation means 9 for circulating a portion of the exhaust gas as recirculated gas to the blower 4, wherein the exhaust gas recirculation means 9 comprises a first recirculation passage 90, a second recirculation passage 91, and a switching means 92, the first recirculation passage 90 connecting a first position P1 of the exhaust gas passage 8 to the suction port 40 of the blower 4, the second recirculation passage 91 connecting a second position P2 of the exhaust gas passage 8 to the suction port 40 of the blower 4, the second position P2 being upstream of the first position P1, and the switching means 92 being able to switch the flow path of the recirculated gas between the first recirculation passage 91 and the second recirculation passage 92. [Selection Diagram] Figure 1

本实用新型涉及锅炉燃烧技术领域，具体是一种大型循环流化床锅炉用高可靠给煤管。‌‌包括倾斜的主管段和末端的弯折段，主管段内腔为偏心结构，主管段和弯折段交界处的内腔下部呈缓坡状，弯折段的舌板位置设有加厚结构。偏心结构改变了煤粉的输送路径，有助于优化煤粉的流动轨迹，减少煤粉对管壁的冲击，从而降低煤粉在输送过程中的摩擦和阻力，提高输送效率。缓坡结构能够确保煤粉在通过时更加顺畅，有效减少煤的堆积和堵塞风险，进一步提高给煤效率。舌板所在位置设有加厚结构，增强了该位置的耐冲击性和耐磨性，能有效保护舌板不受损坏，进一步延长了给煤管的使用寿命。

一种用于生物质富氧燃烧CFB锅炉的烟气再循环系统，属于CFB锅炉技术领域。本实用新型解决了现有富氧燃烧CFB锅炉由于自身结构原因，存在锅炉的燃烧效率较低，烟气中的CO2浓度较低，不便于进行提纯或捕集的技术问题，富氧燃烧CFB锅炉设置有烟气出口，富氧燃烧CFB锅炉的烟气出口通过空气预热器与除尘设备连接，除尘设备与脱硫设备连接，脱硫设备与烟气冷却器连接，烟气冷却器与二次风机连接，二次风机分别与一次风机和富氧燃烧CFB锅炉连接，二次风机通过空气预热器与富氧燃烧CFB锅炉连接；一次风机分别与富氧燃烧CFB锅炉和高流风机连接，一次风机通过空气预热器与富氧燃烧CFB锅炉连接，高流风机与富氧燃烧CFB锅炉连接。提高了燃烧效率，本实用新型用于CFB锅炉。