WO2013071464A1 - 加装冷水壁的新型高效节能锅炉 - Google Patents

加装冷水壁的新型高效节能锅炉 Download PDF

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Publication number
WO2013071464A1
WO2013071464A1 PCT/CN2011/001969 CN2011001969W WO2013071464A1 WO 2013071464 A1 WO2013071464 A1 WO 2013071464A1 CN 2011001969 W CN2011001969 W CN 2011001969W WO 2013071464 A1 WO2013071464 A1 WO 2013071464A1
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Prior art keywords
cold water
furnace
water wall
water pipe
arch
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PCT/CN2011/001969
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English (en)
French (fr)
Inventor
张勤福
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宝鸡市海浪锅炉设备有限公司
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Publication of WO2013071464A1 publication Critical patent/WO2013071464A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating

Definitions

  • the invention relates to a novel high-efficiency energy-saving boiler with a cold water wall.
  • the traditional boiler does not have a cold water wall installed, and there is no cold water pipe in the front arch and the rear arch of the furnace. Under the influence of the high temperature of the furnace above 1000 degrees, the furnace arch is easy to become crisp and reduce the service life. During use, the front part of the fire plate is easy to coke, hindering the flow of smoke. At the same time, the exhaust gas temperature is high and there is heat loss. Therefore, from the perspective of enhancing the service life of the boiler furnace arch and reducing coking, increasing the heating area, thereby prolonging the service life of the boiler, increasing the thermal efficiency, reducing the exhaust gas temperature, and protecting the environment, the development of the new boiler furnace structure is very necessary. Book
  • the invention provides a new type of high-efficiency energy-saving boiler with a cold water wall which can enhance the resistance of the boiler furnace and adjust the temperature in the furnace to provide the service life of the boiler.
  • a new high-efficiency energy-saving boiler equipped with a cold water wall comprising a furnace body, a furnace body is arranged on the furnace body, and a furnace front arch and a furnace are arranged in the furnace body a rear arch, the furnace body is provided with a cold water wall, a cold water pipe is arranged in the front arch of the furnace, and a cold water pipe 2 is arranged in the rear arch of the furnace, and the upper and lower walls of the cold water wall are disposed between
  • the cold water pipe group is connected with a cold water tank connected to the furnace body, and the cold water tank is connected with the inlet cold water wall.
  • the furnace is connected to the heat recovery device through a pipeline, and the heat recovery device is connected with the triple tower desulfurization dust remover.
  • the cold water pipe is in communication with the cold water wall.
  • the cold water pipe 2 is in communication with the cold water wall.
  • the cold water pipe group is in communication with the cold water wall.
  • the upper end of the cold water pipe 2 is a hot water end, and the lower end is a cold water end.
  • the cold water pipe group is a group of -20 groups.
  • a uniform fire plate is disposed between the furnace body and the rear arch of the furnace.
  • the triple tower desulfurization dust collector is provided with a flue gas outlet.
  • the furnace is further provided with a hot water outlet.
  • the invention can increase the heat radiation area, effectively control the furnace temperature, and enhance the resistance of the furnace arch, and the effect is obvious.
  • the temperature enhances the resistance of the furnace arch, increases the heat absorption area of the boiler, reduces the coking phenomenon, and improves the thermal efficiency.
  • adding a cold water pipe group to the furnace can increase the heat absorption area, adjust the furnace temperature, thereby reducing the coking phenomenon.
  • the invention makes the boiler furnace arch more sturdy, and the coking problem can be well relieved.
  • Figure 1 is a schematic structural view of the present invention
  • FIG. 2 is a schematic view of a cold water pipe group of the present invention.
  • a new type of high-efficiency energy-saving boiler with cold water wall including a furnace body, a furnace body 7 is arranged on the furnace body, and a furnace front arch 1 and a furnace rear arch 4 are arranged in the furnace body.
  • a cold water wall 3 is disposed in the furnace body, and a cold water pipe 2 is disposed in the front arch 1 of the furnace, the cold water pipe 2 is connected to the cold water wall 3, and a cold water pipe 2 is disposed in the rear arch 4 of the furnace.
  • the cold water pipe 2 is connected to the cold water wall 3, the upper end of the cold water pipe 2 is a cold water end, the lower end is a hot water end, and the cold water pipe group 6 is a group of 20-20 sets.
  • a cold water pipe group 6 is disposed between the upper and lower walls of the cold water wall, and the cold water pipe group 6 is connected to the cold water wall 3, and the cold water tank 8 is connected to the furnace body, and the cold water tank 8 is connected with the cold water.
  • the wall 3 is connected, and the fire extinguishing plate 9 is disposed between the furnace body and the furnace rear arch 4.
  • the hot water inlet 12 is disposed on the furnace 7, and the furnace 7 is also connected to the heat recovery device 10 through a pipeline, and heat recovery is performed.
  • the device 10 is connected with the triple tower desulfurization dust remover 11 and the triple tower desulfurization
  • the dust remover 11 is provided with a flue gas outlet 13.
  • the cold water pipe in the front arch of the furnace is fixed inside the front arch, and the two ends are connected with the cold water wall; the cold water pipe 2 in the rear arch of the furnace is connected with the cold water wall.
  • the high-temperature flue gas generated after the combustion of the furnace is radiated and convectively distributed to the front and rear arches of the boiler and the uniform fire plate.
  • Part of the high temperature in the furnace arch is set on the cold water wall around the furnace.
  • the cold water pipe group in the furnace can also absorb part of the heat, thereby increasing the heating area, adjusting the furnace temperature, reducing the melting and vaporization of the metal in the coal in the combined state, and avoiding the formation of coking by the molten metal-coated coal powder.
  • the cold water pipe in the rear arch plays the role of supporting the rear arch, and also absorbs heat, increases the heat receiving area, reduces the excessive temperature of the furnace arch to protect the furnace arch, and sets the heat recovery device and the triple connection at the flue gas outlet.
  • Tower desulfurization dust collectors can increase thermal efficiency and reduce emissions.
  • the present invention is equipped with a corresponding air supply system and adjusting the flow rate of the cold water flow, which can effectively increase the heating area of the boiler and reduce the coking phenomenon in the furnace, thereby prolonging the service life of the boiler.
  • the boiler of the invention is burned in sections, the coal burning rate is 98.8%, the thermal efficiency is 88.4%; the soot emission concentration is 25.4 mg/m 3 , which is 1/3 of the national standard, and the blackness coefficient of the blackness of the flue gas is less than 1; the sulfur dioxide emission is 5.95 mg/m 3 , which is only 1/150 of the national standard.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chimneys And Flues (AREA)

Abstract

一种加装冷水壁的节能锅炉，包括炉膛本体，炉膛本体上设置有炉胆（7），炉膛本体内设置有炉膛前拱（1）和炉膛后拱（4），所述的炉膛本体内设置有冷水壁（3），所述的炉膛前拱（1）内设置有冷水管一（2），炉膛后拱（4）内设置有冷水管二（5），所述的冷水壁（3）的上下两壁之间设置有冷水管组（6），所述的炉膛本体上连接有冷水箱（8），冷水箱（8）与进口冷水壁（3）连接，所述的炉胆（7）通过管道与热回收装置（10）连接，热回收装置（10）与三连塔脱硫除尘器（11）连接。该锅炉能增加热辐射面积，有效控制炉膛温度，减少结焦，增强炉拱抗性，增加使用寿命。

Description

加装冷水壁的新型高效节能锅炉
[0001] 一、 技术领域：
本发明涉及一种加装冷水壁的新型高效节能锅炉。
[0002] 二、 背景技术：
传统锅炉没有加装冷水壁， 炉膛前拱、 后拱中没有冷水管， 在 1000 度以上的炉膛高温影响 下， 炉拱容易变酥， 减少使用寿命。 使用过程中均火板前部容易结焦， 阻碍烟气流动。 同 时， 排出烟气温度高， 存在热量损失。 因说此， 从增强锅炉炉拱使用寿命和减少结焦、 增加受 热面积， 从而延长锅炉使用寿命， 增加热效率， 降低排烟温度， 保护环境等角度看， 新型锅 炉炉膛结构的研发非常必要。 书
[0003] 三、 发明内容：
本发明提供一种能够增强锅炉炉拱抗性、 调节炉内温度提供锅炉使用寿命的加装冷水壁的新 型高效节能锅炉。
[0004] 为实现上述目的， 本发明采用的技术方案为： 一种加装冷水壁的新型高效节能锅 炉， 包括炉膛本体， 炉膛本体上设置有炉胆， 炉膛本体内设置有炉膛前拱和炉膛后拱， 所述 的炉膛本体内设置有冷水壁， 所述的炉膛前拱内设置有冷水管一， 炉膛后拱内设置有冷水管 二， 所述的冷水壁的上下两壁之间设置有冷水管组， 所述的炉膛本体上连接有冷水箱， 冷水 箱与的进口冷水壁连接， 所述的炉胆通过管道与热回收装置连接， 热回收装置与三连塔脱硫 除尘器连接。
[0005] 所述的冷水管一与冷水壁相连通。
[0006] 所述的冷水管二与冷水壁的相连通。
[0007] 所述的冷水管组与冷水壁相连通。
[0008] 所述的冷水管二的上端为出热水端， 下端为进冷水端。
[0009] 所述的冷水管组为 1组 -20组。
[0010] 所述的炉膛本体与炉膛后拱之间设置有均火板。
[0011] 所述的三连塔脱硫除尘器上设置有烟气出口。
[0012] 所述的炉胆上还设置有出热水口。
[0013] 与现有技术相比， 本发明具有的优点和效果如下： 本发明能增加热辐射面积， 有效 控制炉膛温度， 增强炉拱抗性， 效果明显。
[0014] 1、 本发明前拱和后拱内的冷水管， 对炉拱起到了支撑作用， 冷水管对前后拱的降 说 明 书
温， 增强了炉拱的抗性， 同时增加了锅炉吸热面积， 减少结焦现象， 提高了热效率。
[0015] 2, 炉膛中添加冷水管组， 可以增加吸热面积， 调节炉温， 从而减少结焦现象。
【0016】 3、 本发明使锅炉炉拱更加坚固， 结焦问题能够得到很好缓解。
[0017] 四、 附图说明：
图 1为本发明的结构示意图；
图 2为本发明冷水管组示意图。
[0018] 图中： 1-前拱； 2-冷水管一； 3-围绕炉膛的冷水壁； 4-后拱； 5-冷水管二； 6-冷水管 组； 7-炉胆； 8-冷水箱； 9-均火板； 10-热回收装置； 11-三连塔脱硫除尘器； 12-热水出口； 13-烟气出口。
[0019] 五、 具体实施方式：
参见图 1、 图 2: —种加装冷水壁的新型高效节能锅炉， 包括炉膛本体， 炉膛本体上设置有 炉胆 7， 炉膛本体内设置有炉膛前拱 1 和炉膛后拱 4， 所述的炉膛本体内设置有冷水壁 3, 所述的炉膛前拱 1 内设置有冷水管一 2， 所述的冷水管一 2与冷水壁 3相连通， 炉膛后拱 4 内设置有冷水管二 5, 所述的冷水管二 5与冷水壁 3的相连通， 所述的冷水管二的上端为进 冷水端， 下端为出热水端， 所述的冷水管组 6为 1组 -20组， 所述的冷水壁的上下两壁之间 设置有冷水管组 6， 所述的冷水管组 6与冷水壁 3相连通， 所述的炉膛本体上连接有冷水箱 8， 冷水箱 8与的进口冷水壁 3连接， 所述的炉膛本体与炉膛后拱 4之间设置有均火板 9， 炉胆 7上设置有出热水口 12， 炉胆 7还通过管道与热回收装置 10连接， 热回收装置 10与 三连塔脱硫除尘器 11连接， 三连塔脱硫除尘器 11上设置有烟气出口 13。
[0020] 炉膛前拱中冷水管一固定在前拱内部， 两端与冷水壁连接； 炉膛后拱中冷水管二与 冷水壁连接。
[0021] 炉膛内冷水管组上下两端端直接与冷水壁连接。
【0022] 实际工作时， 炉膛燃烧后产生的高温烟气， 通过辐射和对流方式将热量散布到锅炉 前、 后拱和均火板上， 炉拱中的部分高温被设置于炉膛四周的冷水壁吸收， 同时炉膛内冷水 管组也能吸收部分热量， 从而能够增加受热面积， 调节炉膛温度， 减少煤炭中以化合态存在 的金属的熔化和汽化， 避免熔化的金属包裹煤粉形成结焦。 后拱中的冷水管在起到对后拱支 撑作用的同时， 也起到吸收热量， 增加受热面积， 降低炉拱过高温度以保护炉拱的作用， 烟 气出口设置热回收装置和三连塔脱硫除尘器， 可以增加热效率， 减少排放。
【0023】 本发明配以相应的供引风系统以及调节冷水流量流速， 可有效增加锅炉受热面积， 减少炉内结焦现象， 从而延长锅炉使用寿命。 [0024] 本发明锅炉分段燃烧， 煤炭燃烧率 98.8%， 热效率 88.4%; 烟尘排放浓度 25.4mg/m3， 是国家标准的 1/3， 烟气黑度格林曼系数小于 1 ; 二氧化硫排放为 5.95 mg/m3，仅是国家标准 的 1/150。
说
书

Claims

权 利 要 求 书
1. 一种加装冷水壁的新型高效节能锅炉， 包括炉膛本体， 炉膛本体上设置有炉胆 （7)， 炉 膛本体内设置有炉膛前拱 （1 ) 和炉膛后拱 （4)， 其特征在于： 所述的炉膛本体内设置有冷 水壁 （3 ), 所述的炉膛前拱 （1 ) 内设置有冷水管一 （2), 炉膛后拱 （4) 内设置有冷水管 二 （5)， 所述的冷水壁的上下两壁之间设置有冷水管组 （6)， 所述的炉膛本体上连接有冷水 箱 （8)， 冷水箱 （8) 与的进口冷水壁 （3 ) 连接， 所述的炉胆 （7) 通过管道与热回收装置
( 10) 连接， 热回收装置 （10) 与三连塔脱硫除尘器 （11 ) 连接。
2. 根据权利要求 1所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的冷水管一 (2) 与冷水壁 （3 ) 相连通。
3. 根据权利要求 1或 2所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的冷水 管二 （5) 与冷水壁 （3 ) 的相连通。
4. 根据权利要求 3所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的冷水管组 (6) 与冷水壁 （3 ) 相连通。
5. 根据权利要求 4所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的冷水管二
(5 ) 的上端为出热水端， 下端为进冷水端。
6. 根据权利要求 5所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的冷水管组
(6) 为 1组 -20组。
7. 根据权利要求 6所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的炉膛本体 与炉膛后拱 （4) 之间设置有均火板 （9)。
8. 根据权利要求 7所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的三连塔脱 硫除尘器 （11 ) 上设置有烟气出口 （13 )。
9. 根据权利要求 8所述的加装冷水壁的新型高效节能锅炉， 其特征在于： 所述的炉胆 （7) 上还设置有出热水口 （12)。
PCT/CN2011/001969 2011-11-14 2011-11-25 加装冷水壁的新型高效节能锅炉 WO2013071464A1 (zh)

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CN2735180Y (zh) * 2004-08-02 2005-10-19 王智勇 余热回收脱硫除尘装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2197567Y (zh) * 1994-06-13 1995-05-17 王森 卧式机械燃烧常压锅炉
CN2243022Y (zh) * 1995-06-15 1996-12-18 沈阳锅炉厂 单锅筒管架式鳞片链条炉排的热水锅炉
CN200986211Y (zh) * 2006-06-21 2007-12-05 哈尔滨团结锅炉集团有限公司 采用交叉水冷壁保护锅壳的锅炉
CN201116777Y (zh) * 2008-04-01 2008-09-17 张勤福 高效微排放燃煤热水锅炉
WO2010053223A1 (en) * 2008-11-10 2010-05-14 Young Ho Kim Waste incinerator and cogeneration system using the same
CN201599787U (zh) * 2010-03-25 2010-10-06 哈尔滨永安锅炉厂 燃煤工业锅炉节能减排炉膛结构

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