CN203757708U - 一种煤层气燃烧器 - Google Patents
一种煤层气燃烧器 Download PDFInfo
- Publication number
- CN203757708U CN203757708U CN201320875526.5U CN201320875526U CN203757708U CN 203757708 U CN203757708 U CN 203757708U CN 201320875526 U CN201320875526 U CN 201320875526U CN 203757708 U CN203757708 U CN 203757708U
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- gas
- ignition
- coal
- fiery
- gas pipe
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
本实用新型提出了一种煤层气燃烧器,包括点火杆,依次同轴设置于点火杆外侧的中心管、点火燃气管、集气箱,在所述点火杆的一端设有点火煤气燃烧器,在所述点火杆的另一端设有点火口,该点火口上设有多个喷火嘴,所述喷火嘴上开有一中心孔和多个小孔,且所述小孔位于中心孔外侧,所述中心孔的直径范围为8~10mm,所述小孔的直径范围为4~6mm。本实用新型优点是,采用上述结构后,燃烧效率高,不同的火燃气管使得燃料热负荷调节比宽,燃烧稳定,且喷火嘴上的中心孔的直径范围为8~10mm,小孔的直径范围为4~6mm,可以有效地防止燃烧器回火,消除了安全隐患,使用安全。
Description
一种煤层气燃烧器
技术领域
[0001] 本实用新型涉及一种燃烧器,特别是指一种煤层气燃烧器。
背景技术
[0002] 燃烧器是用于工业生产中各类炉窑、锅炉中的加热、材料的热处理、烘烤、干燥设备的关键部件,它的性能的好坏直接关系到设备的安全,燃烧的稳定性,能耗的高低,及碳的排放等。
[0003] 现有的燃烧器一般使用天然气、城市煤气或焦炉煤气等中高热值可燃气体作为燃料进行燃烧,由于该类尾气产生的杂质颗粒较多,为了不堵塞喷火嘴,一般喷火嘴的尺寸设计的较大。而用燃烧器燃烧低浓度的煤层气等气体燃料时,存在以下缺点:1、燃烧效率低,空燃比很难调节,热负荷调节比小;2、燃烧过程中容易回火,使锅炉等设备存在安全隐患。因此,市场上需提供一种针对煤层气的燃烧器来解决上述不足。
实用新型内容
[0004] 本实用新型的目的是提供一种燃烧效率高,且不易回火的煤层气燃烧器。
[0005] 为了实现上述目的,本实用新型采用了以下的技术方案:一种煤层气燃烧器,包括点火杆,依次同轴设置于点火杆外侧的中心管、煤层气燃气管、集气箱,在所述点火杆的一端设有点火煤气口,在所述点火杆的另一端设有点火口,该点火口上设有多个喷火嘴,所述喷火嘴上开有一中心孔和多个小孔,且所述小孔位于中心孔外侧,所述中心孔的直径范围为8〜IOmm,所述小孔的直径范围为4〜6mm。
[0006] 进一步的,所述火燃气管包括一段火燃气管和二段火燃气管,该一段火燃气管和二段火燃气管上分别设有一段火燃气进气口和二段火燃气进气口。
[0007] 进一步的,所述集气箱上分别设有一级风进气口和二级风进气口。
[0008] 进一步的,所述中心管设有火焰检测孔、观火孔和空气入口。
[0009] 本实用新型的有益效果在于:采用上述结构后,与现有技术相比,具有燃烧效率高,不同的火燃气管使得燃料热负荷调节比宽,燃烧稳定,且喷火嘴上的中心孔的直径范围为8〜10mm,小孔的直径范围为4〜6mm,可以有效地防止燃烧器回火,消除了安全隐患,使用安全。适应煤层气压力波动较大的工况要求。
附图说明
[0010] 为了更清楚地说明本实用新型实施例技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本实用为了更清楚地说明本实用新型实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
[0011] 图1为本实用新型的结构示意图;[0012] 图2为图1中A-A向结构示意图;
[0013] 图3为图1中B-B向结构示意图;
[0014] 图4为本实用新型中喷火嘴的结构示意图。
具体实施方式
[0015] 下面将结合本实用新型实施例中的附图,对本实用新型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实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。
[0016] 如图1、图2、图3和图4所示的一种煤层气燃烧器,包括点火杆1,依次同轴设置于点火杆I外侧的中心管2、煤层气燃气管、集气箱5,所述火燃气管包括一段火燃气管3和二段火燃气管4,该一段火燃气管3和二段火燃气管4分别设有一段火燃气进气口 12和二段火燃气进气口 13,所述集气箱5上分别设有一级风进气口 10和二级风进气口 11,所述中心管2设有用于观察火焰的火焰检测孔6、观火孔7和空气入口 8。这样燃料燃烧时可通入不同的燃气,使得燃烧效率高,热负荷调节比大。
[0017] 在所述点火杆I的一端设有点火煤气口 9,在所述点火杆I的另一端设有点火口,该点火口上设有多个喷火嘴14,所述喷火嘴14上开有一中心孔15和多个小孔16,且所述小孔16位于中心孔15外侧,所述中心孔15的直径范围为8〜IOmm,所述小孔16的直径范围为4〜6_。这样可以有效地防止燃烧器回火,消除了安全隐患,使用安全。
[0018] 以上所述仅为本实用新型的较佳实施例而已,并不用以限制本实用新型,凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。
Claims (4)
1.一种煤层气燃烧器,其特征在于:包括点火杆(1),依次同轴设置于点火杆(I)外侧的中心管(2)、煤层气燃气管、集气箱(5),在所述点火杆(I)的一端设有点火煤气口(9),在所述点火杆(I)的另一端设有点火口,该点火口上设有多个喷火嘴(14),所述喷火嘴(14)上开有一中心孔(15)和多个小孔(16),且所述小孔(16)位于中心孔(15)外侧,所述中心孔(15)的直径范围为8〜10mm,所述小孔(16)的直径范围为4〜6mm。
2.根据权利要求1所述的一种煤层气燃烧器,其特征在于:所述煤层气燃气管包括一段火燃气管(3)和二段火燃气管(4),该一段火燃气管(3)和二段火燃气管(4)上分别设有一段火燃气进气口( 12)和二段火燃气进气口( 13)。
3.根据权利要求1所述的一种煤层气燃烧器,其特征在于:所述集气箱(5)上分别设有一级风进气口( 10)和二级风进气口( 11)。
4.根据权利要求1〜3任一项所述的一种煤层气燃烧器,其特征在于:所述中心管(2)设有火焰检测孔(6)、观火孔(7)和空气入口(8)。
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CN104613466B (zh) * | 2015-01-17 | 2017-11-07 | 集美大学 | 一种带有天然气喷管和预燃室的双蜗壳旋流式煤粉燃烧器 |
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