天然气 安装使用维护说明书中英文

136万t/a球团工程项目供货商文件

Brazil 1.36 million t / a pellet project in supplier

单项工程名称：136万t/a球团工程

Single Work Name Brazil 1.36 million t / a pellet project

一，天然气烧嘴设备结构特点

First, the structural characteristics of natural gas burner equipment

1.1安装方式：水平安装。1.1 Installation: horizontal installation.

1.2天然气、空气与烧嘴采用金属软管连接。

1.2 natural gas, air and burner metal hose.

1.3天然气火嘴配有空气喷枪和天然气喷枪、看火孔、高能点火烧嘴、火焰检测器

以烧嘴砖部分。1.3 Natural gas burner with the air gun and gas gun, watching the fire hole, high-energy ignition burner, the flame detector to block part of the burner

1.4烧嘴喷枪采用套管结构，空气壳体和天然气喷枪可独立装卸。天然气枪带有空气涡流导流器，燃烧空气经过气体涡流导流器后可以获得非常强劲的涡流状态。当气体离开喷嘴时，气体的速度达到最大。再通过带有耐火锥筒扩散器的气枪喷出。在耐火锥筒的导流作用下，空气与天然气垂直相交，从而达到空气与天然气的完全预混合。形成高强度预混式旋流燃烧，这种设计能够使火焰保持稳定高的设备弹性比。1.4 burner tube structure with gun, air gun shells and natural gas can be independent of loading and unloading. Gas gun with an air swirl diffuser, combustion air through the gas swirl diffuser can be very strong after the vortex state. When the gas leaving the nozzle, the gas velocity reaches the maximum. With the fire and through the diffuser cone spray nozzles. Diversion in the fire under the cone, perpendicular to the air and gas, air and gas so as to achieve full pre-mixed. The formation of high-strength premixed swirl combustion, this design can make the flame stable than the high flexibility of equipment.

1.5烧嘴设有看火孔以便现场观察火焰；自带空气吹扫入口。

1.5 burner with holes for observation to see the fire flame; own air purge inlet.

1.6火焰检测器在高能点火烧嘴和主火嘴燃烧时均能正确判断火焰燃烧情况，作为火焰管理系统做点火控制和熄火保护依据。1.6 flame detector in the high-energy ignition burner and the main burner combustion flame can correctly judge the situation, as do the ignition flame management system based on control and flame protection

1.7烧嘴砖是由耐火衬里构成，衬里材料最高使用温度不大于1450℃。衬里进行烘干处理，保证达到技术要求。1.7 burner tiles constituted by the refractory lining, lining the maximum use temperature of not more than 1450 ℃. Lining for drying, to ensure that meet the technical requirements.

1.8烧嘴能在以下条件下持续运行：

烧嘴的操作弹性范围：30～130％,连续运行；在低负荷运行情况下，完全没有回火的危险。

燃烧器的允许压力降：燃料料≯400mmH2O, 空气≯300mmH2O。

天然气烧嘴燃烧能力调节比：1:10

天然气进入乙方总管道调压阀前最大压力0.1 MPa（g）

空气最大操作压力10kPa（g）

火嘴燃气最大操作压力：10kPa（g）

火嘴机械设计压力： 1.0MPa（g）

火嘴机械设计温度：350 ℃

1.8 burner to run continuously under the following conditions:

Operating flexibility burner range: 30 to 130%, continuous operation; at low load operating conditions, there is no risk of backfire.

Allowable pressure drop burner: fuel material ≯400mmH2O, air ≯300mmH2O.

Ability to adjust the burner combustion gas ratio: 1:10

B mains gas pressure regulator before entering the maximum pressure 0.1 MPa (g)

Air Max operating pressure 10kPa (g)

Maximum operating pressure of gas burners: 10kPa (g)

Mechanical design pressure burner: 1.0MPa (g)

Burner mechanical design temperature: 350 ℃

1.9烧嘴采用空气和燃气比例调节方式。链篦机及其热风管道通过热电阻测得温度型号传至PLC系统，预先设定系统来控制助燃空气阀组上的电动执行器，调节电