Through the use of pressure gas or liquid to remove rust, welding slag, dirt and other impurities in the pipe system, referred to as pipe blowing washing. ... in the high pressure steam pipe purging effect, aluminum target plate is installed on the exhaust pipe of the use. The impact on the target plate visible mark of not more than 10 points, each point is not qualified for more than 1mm. The blowing effect... General steam pipes or other pipelines
Steam purging
1. steam blowing for conveying steam pipes or heating pipe, heating pipe for non thermal expansion without considering the problem of the design time, so do not apply steam blowing.
2. steam purging shall be carried out by large flow steam, and the flow rate shall not be less than 30m/s.
3. steam purging should be done before the warm-up, and timely drainage, check the pipe thermal displacement.
4. steam blowing by steam - slow rise tube - warm temperature 1H - blowing - stop gas cooling - heating pipe heating, constant temperature, second purge, so repeatedly generally not less than 3 times.
5., high pressure steam pipes and steam turbine entrance pipeline, to use the aluminum target plate, smooth plane with a wooden plate of low pressure steam to check, the target plate is placed on the steam outlet plate no dirt is qualified