WO2019210500A1 - 一种新型sncr喷枪固定装置 - Google Patents

一种新型sncr喷枪固定装置 Download PDF

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Publication number
WO2019210500A1
WO2019210500A1 PCT/CN2018/085552 CN2018085552W WO2019210500A1 WO 2019210500 A1 WO2019210500 A1 WO 2019210500A1 CN 2018085552 W CN2018085552 W CN 2018085552W WO 2019210500 A1 WO2019210500 A1 WO 2019210500A1
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Prior art keywords
spray gun
boiler
spray
fixing device
reducing agent
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PCT/CN2018/085552
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English (en)
French (fr)
Inventor
聂庭森
聂庭江
方强
李红
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江苏申江环境科技有限公司
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Application filed by 江苏申江环境科技有限公司 filed Critical 江苏申江环境科技有限公司
Priority to PCT/CN2018/085552 priority Critical patent/WO2019210500A1/zh
Publication of WO2019210500A1 publication Critical patent/WO2019210500A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/78—Liquid phase processes with gas-liquid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories

Definitions

  • the invention relates to the technical field of a spray gun, in particular to a novel SNCR spray gun fixing device.
  • boiler technology has become more and more perfect, which has greatly reduced the pollution of air by the content of nitrate.
  • the operation mode and installation method are required to be higher and higher, both to improve work efficiency and to improve the use efficiency.
  • SNCR selective non-catalytic reduction method
  • the flat nozzle type spray gun has a greater advantage in the injection angle and the uniform distribution of the reducing agent in the flue gas, and the range of the injection also minimizes the impact of the castable material on the inner wall of the boiler.
  • the object of the present invention is to provide a novel SNCR spray gun fixing device, which can effectively prevent the spray gun from rotating due to the looseness of the fixing device, and at the same time adjust the length of the spray gun into the boiler through the fixed bridge and the fixed screw to ensure the service life of the spray gun. Solve the problems in the prior art.
  • a novel SNCR spray gun fixing device includes a spray gun, and the spray gun is provided with a gas source interface and a reducing agent interface, and the reducing agent interface is located at one side of the gas source interface.
  • the spray gun is provided with a spray bar, and one end of the spray bar is provided with a nozzle, and one end of the spray bar near the nozzle is shortly extended through the boiler opening to the outside of the short hole of the boiler opening, and the boiler opening is short
  • Connected to the inner side of the boiler, the upper end and the lower end of the boiler opening short are respectively provided with fixing bolts, and the boiler opening is short-circuited and fastened by a fixing bolt, and the short end of the boiler opening is provided with a connecting flange, the connecting flange is sleeved on the spray bar, and one side of the connecting flange is provided with a sleeve flange, and the sleeve flange is also sleeved on the spray bar, and the sleeve flange is arranged There is a fixed screw rod, and one end of the fixing screw rod away from the sleeve flange is mounted on the fixed bridge and fixed by the first nut and the second nut.
  • the gas source interface is connected to the compressed air through a metal hose, and the reducing agent interface is connected to the reducing agent through the metal hose.
  • the sleeve flange is fixedly connected to the connecting flange by a bolt.
  • the sleeve flange and the fixed screw are of a unitary structure.
  • the SNCR spray gun fixing device of the invention mainly adopts the design of the flat nozzle to maximize the uniform distribution of the reducing agent in the smoke air passage to ensure the absorption efficiency, and the uniform distribution function has superiority with respect to the round corner nozzle, and passes the first nut.
  • the second nut locks the fixing screw and the fixed bridge, and the fixing bolt can effectively prevent the short opening of the boiler opening and the relative rotation of the spray bar, and can effectively prevent the spray gun from loosening due to the fixing device during the running process.
  • the injection angle required by the original process design cannot be satisfied, and the disadvantages of the old-fashioned fixing method being loosened, the denitration efficiency is not guaranteed, and the manual correction is required, and the nozzle can be adjusted by fixing the screw rod and the fixed bridge.
  • the length of the boiler thus ensuring the service life of the spray gun, not only reduces the labor intensity of the workers in the production process, but also ensures the stable operation of denitration, ensures the denitration efficiency, achieves the ultimate goal of environmental pollution control, improves the production efficiency, and has simple production. It is easy to operate and easy to maintain.
  • Figure 1 is a front elevational view of the SNCR spray gun fixture of the present invention
  • Figure 2 is a longitudinal side view of the boom of the present invention.
  • a novel SNCR spray gun fixing device includes a spray gun 5.
  • the spray gun 5 is provided with a gas source interface 6 and a reducing agent interface 7, and the reducing agent interface 7 is located at one side of the gas source interface 6, and the gas source interface 6 is connected to the compressed air through the metal hose, the spray gun 5 is taken in through the air source interface 6, the reducing agent interface 7 is connected to the reducing agent through the metal hose, the spray gun 5 is fed into the reducing agent through the reducing agent interface 7, and the spray gun 5 is provided with the spray
  • the rod 12 is provided at one end of the spray bar 12 with a nozzle 1 through which the reducing agent is sprayed into the boiler 11 in a mist form.
  • the end of the spray bar 12 near the nozzle 1 extends through the boiler opening short 3 to the boiler opening.
  • the boiler opening shorting 3 is located inside the boiler 11, and the upper end and the lower end of the boiler opening shorting 3 are provided with fixing bolts 2, and the boiler opening shorting 3 is fastened by the fixing bolt 2 and the spray bar 12.
  • the fixing bolt 2 can effectively prevent the boiler opening shorting 3 from rotating relative to the spraying rod 12.
  • the end of the short opening 3 of the boiler is provided with a connecting flange 4, and the connecting flange 4 is sleeved on the spray bar 12, and the connection is made.
  • One side of the flange 4 is provided with a sleeve flange 10, and the sleeve flange 10 is connected by bolts
  • the flange 4 is fixedly connected, the connecting flange 4 and the sleeve flange 10 are mating flanges, and a relatively fixed position can be ensured by bolting, and the nozzle 1 of the spray gun 5 is placed in the boiler 11 through the connecting flange 4 and the sleeve flange 10,
  • the sleeve flange 10 is also sleeved on the spray bar 12, and the sleeve flange 10 is provided with a fixed screw rod 9.
  • the sleeve flange 10 and the fixed screw rod 9 are of an integral structure, and the first nut 13 and the second nut 14 are The fixing screw 9 and the fixed bridge 8 are locked and connected, and the fixing bolt 2 can effectively prevent the boiler opening short connection 3 from rotating relative to the spray bar 12, thereby ensuring that the spray gun 5 does not occur due to partial screw loosening during operation. Rotating to meet the best use effect of the spray gun 5 during normal use.
  • One end of the fixed screw rod 9 away from the sleeve flange 10 is mounted on the fixed bridge 8 and fixed by the first nut 13 and the second nut 14 through the first
  • the nut 13 and the second nut 14 lock the fixed screw rod 9 and the fixed bridge 8 together, and the fixing bolt 2 can effectively prevent the boiler opening short connection 3 from rotating relative to the spray bar 12, thereby ensuring the spray gun 5 during operation.
  • the nozzle 1 mainly selects the design of the flat nozzle to maximize the uniform distribution of the reducing agent in the smoke duct, ensuring the absorption efficiency, and the uniform function is superior to the fillet nozzle.
  • the fixing device design can effectively prevent the spray gun 5 from rotating due to the loosening phenomenon of the fixing device during the running process, can not meet the spray angle required by the original process design, and avoids the loosening of the old fixing method and the denitration efficiency is not obtained.
  • the SNCR spray gun fixing device not only reduces the labor intensity of the workers in the production process, but also ensures the stable operation of denitration, ensures the denitration efficiency, achieves the ultimate goal of environmental pollution control, and improves the production efficiency. It has the characteristics of simple production, convenient operation and convenient maintenance.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)

Abstract

本发明公开了一种新型SNCR喷枪固定装置，包括喷枪，喷枪上设置有气源接口和还原剂接口，喷枪上设置有喷杆，喷杆的一端设置有喷嘴，喷杆的一端穿过锅炉开孔短接延伸到锅炉开孔短接的外侧，锅炉开孔短接通过固定螺栓与喷杆紧固，锅炉开孔短接的一端设置有连接法兰。本发明SNCR喷枪固定装置，在运行过程中能有效的防止喷枪因固定装置发生松动现象而发生转动，同时还可以通过固定丝杆和固定桥来调整喷枪伸入锅炉的长度，从而保证喷枪的使用寿命，不仅在生产过程中减少了工人劳动强度，而且保证了脱硝的稳定运行，保证脱硝效率，达到治理环境污染的最终目的，提高了生产效率，具有制作简单、操作方便以及维护方便等各方面的特点。

Description

一种新型SNCR喷枪固定装置 技术领域
本发明涉及喷枪技术领域，具体为一种新型SNCR喷枪固定装置。
背景技术
随着工业现代化和科技现代化的不断迈进，锅炉技术日益完善，很大程度上减少了硝的含量对空气的污染，随着生产技术的不断更新发展，以及生产要求的不断提升，使我们对设备的操作方式以及安装方式都要求越来越高，既要提高工作效率，又需要提高使用效率，在锅炉脱硝方式中，SNCR(选择性非催化还原法)是针对循环流化床锅炉的一种在高温下进行、无需催化剂、成本控制低的脱硝方式，仅使用一种气液混合式喷枪把还原剂以雾状形式喷入锅炉，目前市场上喷枪有很多种，其固定方式亦有很多种，但是综合使用效果来说，扁形喷嘴式喷枪在喷射角度和还原剂在烟气中均匀分布的效果上来说具有更大的优势，且其喷射的射程亦对锅炉内壁的浇注料冲击力最小降低对锅炉的损伤，但是大多数固定方式都存在弊端，特别是针对扁形喷嘴喷枪的固定方式，常规的固定方式在扁形喷嘴喷枪运行使用过程中经常出现因固定装置发生松动而发生转动现象，而不能体现扁形喷嘴喷枪的优势，使脱硝效果受到影响，严重污染坏境，另外，目前的喷枪固定装置也很难做到有效的调节喷枪的伸入长度，使喷嘴受到的摩擦力增大而影响其寿命和喷洒效果，使设备不能尽其所能达到最大化的使用效果，影响环境的治理。
发明内容
本发明的目的在于提供一种新型SNCR喷枪固定装置，有效防止喷枪因固定装置发生松动而发生转动，同时通过固定桥和固定丝杆来调整喷枪伸入锅炉的长度，保证喷枪的使用寿命，可以解决现有技术中的问题。
为实现上述目的，本发明提供如下技术方案：一种新型SNCR喷枪固定 装置，包括喷枪，所述喷枪上设置有气源接口和还原剂接口，所述还原剂接口位于气源接口的一侧，所述喷枪上设置有喷杆，所述喷杆的一端设置有喷嘴，所述喷杆靠近喷嘴的一端穿过锅炉开孔短接延伸到锅炉开孔短接的外侧，所述锅炉开孔短接位于锅炉的内侧，所述锅炉开孔短接的上端和下端均设置有固定螺栓，所述锅炉开孔短接通过固定螺栓与喷杆紧固，所述锅炉开孔短接的一端设置有连接法兰，所述连接法兰套设在喷杆上，所述连接法兰的一侧设置有套法兰，所述套法兰也套设在喷杆上，所述套法兰上设置有固定丝杆，所述固定丝杆远离套法兰的一端安装在固定桥上采用第一螺母和第二螺母固定。
优选的，所述气源接口通过金属软管与压缩空气连接，还原剂接口通过金属软管与还原剂连接。
优选的，所述套法兰通过螺栓与连接法兰固定连接。
优选的，所述套法兰与固定丝杆为一体式结构。
与现有技术相比，本发明的有益效果如下：
本发明SNCR喷枪固定装置，喷嘴主要选择扁嘴的设计能最大化的使还原剂在烟风道内均匀分布，确保吸收效率，均布功能其相对于圆角喷嘴具有更优越性，通过第一螺母和第二螺母将固定丝杆和固定桥锁紧连接，同时采用固定螺栓可有效防止锅炉开孔短接与喷杆发生相对转动，在运行过程中能有效的防止喷枪因固定装置发生松动现象而发生转动，无法满足原工艺设计所需要的喷射角度，避免了老式固定方式松动而使脱硝效率得不到保证仍需要人工矫正的弊端，同时还可以通过固定丝杆和固定桥来调整喷枪伸入锅炉的长度，从而保证喷枪的使用寿命，不仅在生产过程中减少了工人劳动强度，而且保证了脱硝的稳定运行，保证脱硝效率，达到治理环境污染的最终目的，提高了生产效率，具有制作简单、操作方便以及维护方便等各方面的特点。
附图说明
图1为本发明的SNCR喷枪固定装置正视图；
图2为本发明的喷杆纵向侧视图。
图中：1喷嘴、2固定螺栓、3锅炉开孔短接、4连接法兰、5喷枪、6气源接口、7还原剂接口、8固定桥、9固定丝杆、10套法兰、11锅炉、12喷杆、13第一螺母、14第二螺母。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1-2，一种新型SNCR喷枪固定装置，包括喷枪5，喷枪5上设置有气源接口6和还原剂接口7，还原剂接口7位于气源接口6的一侧，气源接口6通过金属软管与压缩空气连接，喷枪5通过气源接口6进气，还原剂接口7通过金属软管与还原剂连接，喷枪5通过还原剂接口7进还原剂，喷枪5上设置有喷杆12，喷杆12的一端设置有喷嘴1，通过喷嘴1将还原剂以雾状形式喷入锅炉11，喷杆12靠近喷嘴1的一端穿过锅炉开孔短接3延伸到锅炉开孔短接3的外侧，锅炉开孔短接3位于锅炉11的内侧，锅炉开孔短接3的上端和下端均设置有固定螺栓2，锅炉开孔短接3通过固定螺栓2与喷杆12紧固，采用固定螺栓2可有效防止锅炉开孔短接3与喷杆12发生相对转动，锅炉开孔短接3的一端设置有连接法兰4，连接法兰4套设在喷杆12上，连接法兰4的一侧设置有套法兰10，套法兰10通过螺栓与连接法兰4固定连接，连接法兰4和套法兰10为配对法兰，通过螺栓连接能够保证相对固定的位置，通过连接法兰4和套法兰10使喷枪5的喷嘴1放入锅炉11，套法兰10也套设在喷杆12上，套法兰10上设置有固定丝杆9，套法兰10与固定丝杆9为一体式结构，通过第一螺母13和第二螺母14将固定丝杆9和固定桥8锁紧 连接，同时采用固定螺栓2可有效防止锅炉开孔短接3与喷杆12发生相对转动，能够确保在运行过程中喷枪5不会因为局部螺丝松动而发生转动，来满足喷枪5在正常使用过程中达到最佳的使用效果，固定丝杆9远离套法兰10的一端安装在固定桥8上采用第一螺母13和第二螺母14固定，通过第一螺母13和第二螺母14将固定丝杆9和固定桥8锁紧连接，同时采用固定螺栓2可有效防止锅炉开孔短接3与喷杆12发生相对转动，能够确保在运行过程中喷枪5不会因为局部螺丝松动而发生转动，来满足喷枪5在正常使用过程中达到最佳的使用效果，同时还可以通过固定丝杆9和固定桥8来调整喷枪5伸入锅炉11的长度，从而保证喷枪5的使用寿命。
综上所述：本发明SNCR喷枪固定装置，喷嘴1主要选择扁嘴的设计能最大化的使还原剂在烟风道内均匀分布，确保吸收效率，均布功能其相对于圆角喷嘴具有更优越性，并且该固定装置设计在运行过程中能有效的防止喷枪5因固定装置发生松动现象而发生转动，无法满足原工艺设计所需要的喷射角度，避免了老式固定方式松动而使脱硝效率得不到保证仍需要人工矫正的弊端，该SNCR喷枪固定装置，不仅在生产过程中减少了工人劳动强度，而且保证了脱硝的稳定运行，保证脱硝效率，达到治理环境污染的最终目的，提高了生产效率，具有制作简单、操作方便以及维护方便等各方面的特点。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (4)

  1. 一种新型SNCR喷枪固定装置，包括喷枪(5)，其特征在于：所述喷枪(5)上设置有气源接口(6)和还原剂接口(7)，所述还原剂接口(7)位于气源接口(6)的一侧，所述喷枪(5)上设置有喷杆(12)，所述喷杆(12)的一端设置有喷嘴(1)，所述喷杆(12)靠近喷嘴(1)的一端穿过锅炉开孔短接(3)延伸到锅炉开孔短接(3)的外侧，所述锅炉开孔短接(3)位于锅炉(11)的内侧，所述锅炉开孔短接(3)的上端和下端均设置有固定螺栓(2)，所述锅炉开孔短接(3)通过固定螺栓(2)与喷杆(12)紧固，所述锅炉开孔短接(3)的一端设置有连接法兰(4)，所述连接法兰(4)套设在喷杆(12)上，所述连接法兰(4)的一侧设置有套法兰(10)，所述套法兰(10)也套设在喷杆(12)上，所述套法兰(10)上设置有固定丝杆(9)，所述固定丝杆(9)远离套法兰(10)的一端安装在固定桥(8)上采用第一螺母(13)和第二螺母(14)固定。
  2. 根据权利要求1所述的一种新型SNCR喷枪固定装置，其特征在于：所述气源接口(6)通过金属软管与压缩空气连接，还原剂接口(7)通过金属软管与还原剂连接。
  3. 根据权利要求1所述的一种新型SNCR喷枪固定装置，其特征在于：所述套法兰(10)通过螺栓与连接法兰(4)固定连接。
  4. 根据权利要求1所述的一种新型SNCR喷枪固定装置，其特征在于：所述套法兰(10)与固定丝杆(9)为一体式结构。
PCT/CN2018/085552 2018-05-04 2018-05-04 一种新型sncr喷枪固定装置 WO2019210500A1 (zh)

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