22型客车投入运用已有十五年之久,但在清除其温水锅炉和散热管路中的锈垢的工作上至今还没有一个好办法。尤其我局,天气寒冷,最低温度达零下40多度,加之采暖期长,温水锅炉长时期的运用,致使散热管路内的锈垢增多,影响散热。如果再用在防寒整修中用木锤敲打震动后以清水冲洗的办法除锈是不行了,已满足不了冬季旅客运输 The 22 has been in operation for 15 years, but so far it has not been a good idea to remove the scale from its warm boilers and cooling lines. In particular, my bureau, the weather is cold, the minimum temperature of minus 40 degrees, combined with a long heating period, the long-term use of warm water boiler, resulting in increased heat pipe rust, affecting heat dissipation. If you re-use in the cold renovation hammer struck with wooden hammer rinse with water after cleaning is not acceptable, has not satisfied the winter passenger transport