Regarding the scope of pipeline water flushing (which pipelines require water flushing)
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The last edit to this post was made by w8525487 on 2019-10-30 at 16:37. Article 11.1.2 of GB50517 states that: 1. Pipelines for transporting gaseous media should preferably be purged with air； 2. Pipelines for transporting liquid media should preferably be flushed with water ； 3. Pipelines for transporting gaseous media should be purged with steam ； How do you all interpret these sentences? Do all liquid medium pipelines need to be flushed with water?
Ugh, I didn’t finish writing this; I pressed Enter and sent it anyway. I still don’t know how to cancel it. It’s frustrating
In the standards, water flushing and water coupling are not the same thing, right?
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Personal opinions are not necessarily correct: ① Since the reaction catalyst cannot be exposed to water, and the reaction areas are typically made of molybdenum steel or even stainless steel pipes, the outlet of the feed pump (excluding the minimum flow line) is not washed with water. Furthermore, the pipes are pre-cleaned during the construction phase; water-soluble paper is used to cover the slag during welding, and the area is cleaned thoroughly after welding. Since high-pressure areas often consist of welded pipes, purging is avoided as much as possible. ② During water flushing, it is only the pipes connected to the pump outlet that are flushed; the pump inlet is flushed by gravity flow before the fluid enters the pump, and the filter at the pump inlet can be used to clean it. The pipes must be thoroughly flushed before the fluid enters the equipment. ③The remaining pipes are reserved for flushing during the water commissioning process; that is, the water flushing is carried out simultaneously with the individual testing of the pumps, separate from the overall water commissioning. Is there a flaw in doing this? Please feel free to correct me, experts……
Oh. . Okay, thank you:handshake
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What you mean is probably the purging and flushing after the pressure test, right?
Which pressure test? Are you referring to a strength test or a airtightness test?