According to its working principle, a burner can be defined as a device that converts substances into heat through the chemical reaction of combustion - that is, air and fuel are mixed in an appropriate proportion through a premixing device to make it fully burned. The burner is a thermal energy device that feeds fuel and air into the furnace according to the required concentration, velocity, turbulence and mixing mode, and enables the fuel to stably ignite and burn in the furnace. The fuel is mainly fuel oil and gas. Generally used in small and medium oil or gas boilers . Gas burners are divided into natural gas burners , city gas burners, etc.

According to the combustion control mode of the burner, it is divided into : single -stage fire burner, double-stage fire burner, proportional adjustment burner.

According to the fuel atomization method, it is divided into : mechanical atomizing burner, medium atomizing burner ;

According to the structure, it is divided into : integral burner and split burner. Among them, the split burner is mainly used in industrial production, and its main feature is that the combustion system , air supply system, control system, etc. are all disassembled and installed. This kind of machine is mainly suitable for large equipment or special working environments such as high temperature.

Relatively speaking, commercial burners are relatively inexpensive due to mass production and low specialization requirements in the market supply chain, while split burners have relatively high specialization requirements, and Most require a professional installation team, and the market sales price is relatively much higher than the same period last year.

The gas burner construction consists of the following 5 systems :

1. Air supply system The function of the air supply system is to send air with a certain wind speed and air volume into the combustion chamber. Its main components are : shell, fan motor, fan impeller, air gun fire pipe, air door controller, air door baffle , Cam adjustment mechanism, diffuser plate.

2. Ignition system

The function of the ignition system is to ignite the mixture of air and fuel, and its main components are : ignition transformer, ignition electrode, electric fire high-voltage cable.

3. Monitoring system

The function of the monitoring system is to ensure the safe and stable operation of the burner , and its main components include a flame monitor, a pressure monitor, and a temperature monitor.

4. Fuel system

The function of the fuel system is to ensure that the burner burns the required fuel. The fuel system of the oil burner mainly includes : oil pipe and joint, oil pump, solenoid valve, nozzle, heavy oil preheater . Gas burners mainly include filters, pressure regulators, solenoid valve groups, ignition solenoid valve groups, and fuel butterfly valves.

5. Electronic control system

The electronic control system is the command center and contact center of the above systems. The main control element is the program controller. Different burners are equipped with different program controllers. The common program controllers are : LFL series, LAL series, LOA series, LGB series , the main difference is that the time of each program step is different.

当可燃气体(城市煤气、天然气、液化石油气)由微电脑控制系统按程序控制进入燃烧器的燃烧头内，由一次风与可燃气体混合，点火燃烧，二次风助燃，实现充分燃烧。燃烧状况由火焰自动跟踪系统检测控制燃烧，当燃烧出现故障(燃烧室缺氧、可燃气体欠压、可燃烧气体断流、气量不足等)，控制系统发出指令，供气系统的电磁阀迅速关闭，切断气电源，燃烧器自动吹扫后停机，指示故障。1 )热效率高 :能适应压力波动，自行调节一次配风 ( 即燃气压力大，吸入一次风多;燃气压力小，吸入一次风少 ) ，燃烧充分，热效率高;

( 2 ) 安全性高 :该燃烧器配备小火。锅炉启动时，先点小火，当小火正常稳定燃烧时，自控系统才打开主燃气阀门，燃料才能进入锅炉正常燃烧，不会产生爆燃现象;

( 3 ) 燃料适应性强:该种燃烧器只需更换少量部件就能适用于天然气、液化石油气、煤气、液化石油混合气以及其它类燃气

因为燃气燃烧器主要燃料分天然气、液化石油气、城市煤气及其他可燃气体，这几种燃料属易燃、易爆的危险气体，在使用和储藏过程中都应对安全引起高度重视，否则将发生重大安全方面的事故。

(一)、开机操作:

1.对新安装炉体，调试前应认真检测燃气是否符合燃烧器的要求;检查供气管路上的检测仪器是否正常及管道阀门开、关是否正常，是否便于以后使用及检修。

2.对新安装的管道，应认真检查所有管路的安装可靠性和管路的密封性。

3.使用单独气化站的用户，要保证供气量、供气参数符合安全燃烧要求。

4.操作人员认真阅读设备使用说明书，熟练掌握安全操作知识及方法。

5.每次开机前要检查燃气阀门是否打开，否则燃烧器不工作。

6.启动控制柜上的电源控制按扭，此时数显表就显示当前炉内温度，新安的装炉体此温度为环境温度。

7.启动风机控制按扭，安装在炉体上的风机就工作，此时若风机损坏控制柜就自动保护不进入下一步操作。

8.助燃风机工作无异常现象时，再启动燃烧控制按扭，此时燃烧程序控制器就开始工作，它通过一定的程序进行点火、送气、检测火焰、等程序最终实现安全燃烧。

9.当燃烧控制器收到不利于燃烧的信号(例:点火失败、气压不稳定、电路有问题)等问题时，燃烧控制器就立刻关闭燃气并发出报警信号。

10. 燃烧控制器若报警，必须是解决故障后由操作人员对其手动复位才可以继续工作。

11.整个设备的操作，操作人员应参考炉体安全操作规程及生产工艺要求进行操作。

12.按生产工艺要求需要调整控制温度时，操作员应参考智能数控表说明书进行调节。

(二)、关机操作:

(1)关机有两种情况:第一是:当炉内温度到达所设定值自动关机，此时操作员不必任何操作，等到炉内温度低于设定值时控制器会自动开机。

(2) The second is : when artificially shutting down and switching off the shift, the operator should follow the reverse sequence when starting up (a. Turn off the combustion control button first, b. Turn off the fan button, c. Turn off the power button at last twist ) to operate the shutdown.

(3) When the shutdown time is long, the operator should close the gas pipeline valve to avoid gas leakage .