锅炉在长时间使用的过程中会大量的出现水垢的情况，一般很少有企业注意到水垢的影响，会继续长时间的使用，其实这种情况是非常的错误的，今天我们来讲解一下锅炉水垢长时间不清洗会有哪些危害？
During long-term use of boilers, a large amount of scale will appear. Generally, few companies pay attention to the impact of scale and continue to use them for a long time. In fact, this situation is very wrong. Today, we will explain the hazards of boiler scale not being cleaned for a long time?
1、容易使钢板、管道因过热而被烧损
1. Easy to burn steel plates and pipelines due to overheating
因为锅炉结垢后，又要保持一定的工作压力及蒸发量，只有提高火侧的温度，但是水垢越厚，导热系数越低，火侧的温度就得越高。一般说来锅炉火侧的温度在900℃左右，而水侧的温度在190℃左右。当没有水垢时钢板的温度在230℃左右，一旦结垢1m左右，钢板的温度比无垢时提高了140℃左右。20＃钢板当温度达到315℃时，金属的各项可塑性指标开始下降，当达到450℃时，金属会因过热而蠕动变形。所以锅炉结垢是很容易使金属被烧损的。
Because after boiler scaling, it is necessary to maintain a certain working pressure and evaporation rate, the only way is to increase the temperature on the fire side. However, the thicker the scale, the lower the thermal conductivity, and the higher the temperature on the fire side. Generally speaking, the temperature on the fire side of a boiler is around 900 ℃, while the temperature on the water side is around 190 ℃. When there is no scale, the temperature of the steel plate is around 230 ℃. Once the scale is about 1m, the temperature of the steel plate increases by about 140 ℃ compared to when there is no scale. When the temperature of 20 # steel plate reaches 315 ℃, the various plasticity indicators of the metal begin to decrease. When it reaches 450 ℃, the metal will creep and deform due to overheating. So boiler scaling can easily cause metal to be burned.
2、增加检修费用和降低使用寿命
2. Increase maintenance costs and reduce service life
锅炉因水垢而引起的事故大约是锅炉事故总数的三分之一，还是上升趋势，不但造成设备的损坏，也威胁到人身的安全。因此，在给水合格的情况下，锅炉运行时应严格控制锅内用水达到国家标准并在运行中防止水垢的生成，而且结垢后，需及时进行处理，必须彻底防止及清除锅炉炉内水垢及控制水质。要解决以上问题，目前科学的方法是在锅炉运行加入综合性能好，功效全面的药剂运行保养及定期清洗除垢。
Boiler accidents caused by scale are about one-third of the total number of boiler accidents, and are on the rise. They not only cause equipment damage, but also threaten personal safety. Therefore, when the water supply is qualified, the boiler should strictly control the use of water in the boiler to meet national standards and prevent the formation of scale during operation. After scaling, timely treatment is necessary to thoroughly prevent and remove scale in the boiler and control water quality. To solve the above problems, the current scientific method is to add comprehensive and effective agents to the operation and maintenance of boilers, as well as regular cleaning and descaling.