What kind of homework is this?
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At the scene, I saw, what kind of job is this?
Answer: Steam pipeline purging and target shooting. @Shutong steam pipeline purging is the most important step in ensuring the internal cleanliness of the pipeline. Its purpose is to prevent rust, welding slag and other impurities in the pipeline from affecting the quality of the steam, damaging the valve sealing surface, and causing major equipment accidents. Therefore, the industry acceptance standards are extremely strict, and it is also the focus and difficulty of large-scale engineering construction projects.
Pipe purge, why aren't there any warnings around?
Yes, see the "yellow warning tape" in the photo on the left.
It should be steam pipe purging and target shooting； Subsequent equipment driven by steam, such as steam turbines, etc. ；