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1吨燃气锅炉运行过程中的问题有哪些?

作者:http://www.hntkglgs.com | 浏览:0 次
28
5
2017
1吨燃气锅炉运行过程中的问题有哪些?
What are the problems in the running of a ton of gas boilers?
发生在1吨燃气锅炉低温受热面上的低温腐蚀主要有这么几点:有化学腐蚀(如硫酸作用于金属),也有电化学腐蚀(如水蒸气冷凝后与金属作用)。这两种腐蚀基本发生在温度低于酸露点的壁面上。蒸发受热面上的积灰,有时也能加速腐蚀。
In the steam boiler low temperature heating surface of low temperature corrosion mainly include such points: chemical corrosion (such as sulfuric acid ACTS on metal), also have electrochemical corrosion and metal) after (such as water vapor condensation. These two kinds of corrosion occur at the surface of the wall where the temperature is below the dew point. The soot that evaporates on the hot surface can sometimes accelerate corrosion.
排气速度慢的原因有以下几点:出口滤心阻塞;配管的截面积太小或管路太长;入口端的过滤网阻塞;逆止阀打不开。解决此类问题的办法:更换出口滤心,更换截面积较大的管路,或缩短管路距离;清理过滤网,在入口端装一个空气滤清器;检查逆止阀的弹簧。
The reasons for the slow exhaust are: the outlet filter is blocked; The length of the pipe is too small or the line is too long; The filter on the entrance is blocked; The reverse valve will not open. The solution to this problem is to replace the outlet filter, replace the larger section, or shorten the distance of the line. Clean up the filter and install an air filter at the entrance. Check the spring of the reverse valve.
除此以外蒸汽锅炉还容易出现蒸汽、给水管道损坏现象:管道轻微泄漏时,发出响声,保温层潮湿或漏汽、滴水。管道爆破时,发出显著响声,并喷出汽、水。蒸汽或给水流量变化异常,爆破部位在流量表前,流量减少;在流量表之后,则流量增加。蒸汽压力或给水压力下降。给水母管爆破时,运行炉水位下降。
In addition, the steam boiler is also prone to the damage of steam and water pipes: when the pipe is slightly leaking, it makes a noise, moisture or leakage of moisture and water. When the pipe is blasting, a striking sound is made and the steam and water are expelled. The change of steam or feed water is abnormal, the blasting site is in front of the flowmeter, and the flow rate decreases. After the flowmeter, the flow increases. Steam pressure or water pressure is down. When blasting the jellyfish, the water level drops.
造成这些现象的原因主要有:蒸汽管道超温运行,蠕胀超过标准或运行时间过久,金属强度降低。蒸汽管道暖管不充分,产生严重水冲击。给水质量不良,造成管壁腐蚀。给水管道局部被冲刷致使管壁减簿。给水系统运行不正常,压力波动过大,发生水冲击或振动。安装、制造、材质和焊接不良等。解决办法是:如给水管道泄漏轻微,能够保持锅炉给水,且不致很快扩大故障时,可维持短时间运行,尽快投入备用锅炉,若故障加剧,直接威胁人身或设备安全时,则应停炉。
The main reason for these phenomena is that the steam pipeline overtemperature runs, the creep exceeds the standard or the running time, the metal strength decreases. The steam pipe is not sufficiently warm to produce a severe water shock. Poor quality of water supply causes corrosion of pipe wall. The area of the water supply pipe is washed away and the wall of the pipe is reduced. The water supply system runs abnormal, the pressure fluctuates too much, the water shocks or vibrates. Installation, manufacturing, material and welding. Solution is: if the water supply pipeline leak slightly, can maintain the boiler feed water, and does not quickly expanding failure, can maintain a short running, put into standby boiler as soon as possible, if the fault is deepening, direct threat to the personal or safety equipment, should be stopped.
如给水管道爆破,应设法尽快将故障管段与系统解列,若不能解列而又无法保持汽包水位时,亦应停炉。如蒸汽管道泄漏轻微,不致很快扩大故障时,可维持短时间运行,尽快投入备用锅炉;若故障加剧,直接威胁人身或设备安全时,则应停炉。

If the water supply pipe is blasting, it should be tried to solve the fault line and the system as soon as possible, and when the water level is not maintained, the furnace should also be stopped. If the steam leak is slight, it will not be expanded quickly, it will be able to keep running for a short time, and then it will be put into the spare boiler as soon as possible. If the fault is aggravated, the fire should be stopped if the person or equipment is safe. 

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