The speed of the steam boiler heating surface is related to the velocity of the smoke, the concentration and hardness of the ash particles in the flue gas, the arrangement of the tube bundle, etc. the velocity of the flue gas has the greatest influence on the wearing of the heating surface. The test results show that the wear rate of the heating surface pipe is proportional to the three times of the flue gas velocity, so it is necessary to control the flow velocity of the flue gas effectively.
2吨蒸汽锅炉受热面的磨损速度与烟气的流速、烟气中灰粒的浓度及硬度、管束的布置方式等因素有关，其中烟气的流速对受热面的磨损影响最大。实验测得，受热面管子的磨损速度与烟气流速的三次方成正比，因此必须有效地对烟气流速进行控制。
The furnace wall leakage, local wall flue ash, flue gas flow rate of local convection heating surface will cause severe local slagging in the flue is too large, so that the heating surface tube local wear intensifies, in addition, when the blower working poor, high-pressure steam will blow the heating surface of the pipe corrosion, the pipe wall thinning.
炉墙的漏风，烟道的局部墙灰，对流受热面局部严重结渣都会使烟道的局部烟气流速过大，使受热面管子局部磨损加剧，另外，当吹灰器工作不良时，高压蒸汽蒸汽会将受热面的管子吹蚀，使管壁减薄。
Wear often occurs in region heating surface pipe is: cold ash hopper, burner, water wall tube flame fold corner, manhole and blowing hole near the steering room before the vertical flue gas; the heating surface of the lower tube; horizontal tail vertical flue heating surface tube upper part two or three pipe and the lower pipe, pipe section two or three support clip edge, near the furnace wall side row pipe and pipe pipe and other prominent individual.
受热面管子磨损经常发生的区域是：冷灰斗、燃烧器、折焰角、人孔门以及吹灰孔附近的水冷壁管子;烟气转向室前立式受热面的下部管子;尾部竖直烟道的卧式受热面管排上部第二三根管子、下部第二三根管子、管子支撑卡子边缘部位、靠近炉墙的边排管子及个别突出管排的管子等。
Method of reducing heating surface abrasion are: reduce boiler load, reduce the velocity of flue gas; burning coal in high quality, reduce the content of fly ash in flue gas steam boiler; change the tube arrangement, the staggered arrangement for in-line arrangement; remove flue slagging and fouling, increasing gas flow area; reducing furnace wall leakage installation; spoiler or anti abrasion device etc..
减少受热面磨损的方法主要有：降低锅炉负荷，减少烟气流速;燃用优质煤种，降低蒸汽锅炉烟气中飞灰含量;改变管束布置方式，由错列布置改为顺列布置;清除烟道结渣及堵灰，增加烟气流通面积;减少炉墙漏风;加装阻流板或防磨装置等。
Check the scuffing on the bore of the plunger sleeve of DSY electric pressure test pump. If the DSY type electric pressure test pump has passed the sealing test on the ST-990 or 3375375 tester, then the plunger sleeve is available. If the leakage is large, the piston and plunger sleeve must be replaced.
检查DSY型电动试压泵柱塞套中孔上的擦伤。如果DSY型电动试压泵已在ST-990或3375375试验器上通过了密封性试验，那么柱塞套是可用的。如果渗漏量很大，就必须更换柱塞及柱塞套。
