Aalborg CBH 5000燃油锅炉应急操作程序 Aalborg CBH 5000 Oil-fired boiler emergency operating procedure
Aalborg CBH 5000燃油锅炉正常燃烧控制由电脑程序控制，所有操作都在机旁的控制面板屏幕上完成，在屏幕上可以实行自动燃烧控制和手动燃烧控制。这里的手动燃烧控制就单指锅炉运行时的负荷控制，同时不能根据蒸汽压力自动启停。其他如水位控制都还是自动调节的。所有的警报还在自动监控状态。当机旁控制面板功能故障不能操作时还有一套应急点火运行系统，应急运行系统也包括两种运行方式，主要是油的使用区别，在应急点火运行的情况下燃烧器电加热是不工作的，所以应急点火模式锅炉只能烧轻油，一路来自MGO日用柜，这是一路独立的系统，通过面板上的换油程序可以转换，这也是锅炉需要烧轻油时的常用方法。另一路来自重油系统，直接在分油机间锅炉供油泵的进口管系上转换轻油阀就可以。具体操作程序如下：
图1
根据炉水化验结果选择图示8按钮开关进行炉水投药。
Aalborg CBH 5000 Oil fired boiler normal combustion control is controlled by computer program, all operations are performed on the control panel screen at the side of the machine, automatic combustion control and manual combustion control can be performed on the screen. The manual combustion control here only refers to the load control of the boiler when it is running, and it cannot automatically start and stop according to the steam pressure. Others, such as water level control, are automatically adjusted. All alarms are still automatically monitored. When the machine control panel function failure cannot operation also has a set of emergency lighting system operation, emergency operation system also includes two kinds of operation mode, mainly oil the use of the difference, under the condition of the emergency operation ignition burner electric heating is not working, so emergency boiler can burn light oil ignition mode, all the way from MGO style service tank, it is independent system, all the way Through the oil change program on the panel can be converted, which is also the common method when the boiler needs to burn light oil. The other way comes from the heavy oil system, directly converting light oil valve on the inlet pipe system of boiler supply pump between oil distributor. The specific operating procedures are as follows:
Figure 1
As shown above, switch 1 switches from automatic position to emergency position, which is a key switch.
2 Choose button 6 or 14 in the figure to start a feed pump.
3. Choose the knob switch shown in the figure 7 or 15 to start an MGO oil pump and observe whether the pressure of the MGO pressure gauge next to the burner is in the range of 26-30bar.
4 after the pressure is normal, choose the button switch shown in figure 2 to start the burner fan motor.
5 after the fan is running, select the button switch shown in figure 4 to open the air valve of the burner to the fully open position, and sweep the air for at least 1 minute.
6 select the figure 12 button switch to make the burner air door to the full closed position.
7. Simultaneously press the two button switches 9/10 shown in the figure to ignite and observe the observation hole of the burner. After the ignition is successful, release the two button switches and the light 3 shown in the figure will be steady on.
8 according to the required steam pressure adjustment figure 4/12 button switch to increase or reduce the boiler load, the minimum load should not be less than 30%, too low will make the boiler combustion condition is not good, black smoke, because the air door opening is too small.
Emergency ignition using heavy oil pipeline ignition procedures:
1 first to the oil distributor room to transfer the boiler fuel oil supply pump inlet valve from heavy oil to light oil, conversion valve is a three-way valve.
2 Switch 1 from automatic position to emergency position as shown above.
3. Select button 6 or 14 in the figure to start one feed pump.
4 Choose the two button switch shown in figure 5/13 to start a fuel supply pump and observe that the pressure at the burner side should be between 3 and 5BAR.
5. Select the button switch shown in the figure 16 to start the fuel booster pump, and observe that the pressure beside the burner should be between 26-30bar.
6 after the pressure is normal, choose the button switch shown in figure 2 to start the burner fan motor.
7. After the fan is running, select the button switch shown in figure 4 to open the air valve of the burner to the fully open position and sweep the air for at least 1 minute.
8 select the figure 12 button switch to make the burner air door to the full closed position.
9 At the same time, press the two button switches 9/10 shown in the figure to ignite, observe the observation hole of the burner, release the two button switches after the ignition is successful, and the light 3 shown in the figure will be steady on.
10 According to the required steam pressure adjustment figure 4/12 button switch to increase or reduce the boiler load, the minimum load should not be less than 30%, too low will make the boiler combustion condition is not good, black smoke, because the air door opening is too small.
Because the boiler in the emergency ignition mode only has a very low water level, flame failure and combustion air pressure is low these three protection functions, other protection are not, the automatic control of boiler water level is not, can only manually adjust the boiler water level, so in the case of emergency ignition to closely monitor the boiler water level.
Combustion load should also be controlled and a steam pressure of 4.5BAR should be sufficient. If the emergency ignition is tested and MGO mode is selected, the boiler should be converted to MGO mode before the emergency ignition switch is switched. In this case, the inlet and return oil valves of the boiler are MGO pipe systems. If there is no switch before switching the emergency ignition switch, it is necessary to manually change the position of the boiler MGO oil inlet and return valve. If it is the boiler control panel failure, the need for emergency operation of the boiler, then it is in the use of heavy oil, directly in the oil distributor between the oil valve on the line, choose the second method above. According to the results of the furnace water test, choose the 8 button switch shown in the picture for furnace water dosing.
