Regarding the rationality of steam pipeline drainage?
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As can be seen from the diagram, I would like to ask the experienced colleagues here: this pipe is the drain connection for high-pressure steam. I don’t understand why it is designed this way – can water enter the water seal tank? Thank you. My master said that pressure can force water to flow, but I just can’t convince myself of that. I hope I can get an explanation; thank you!
The condensate pressure is 37.5 barg; it remains at 37.5 barg~~~ If the pressure in the water seal tank isn’t high, then it’s definitely possible to proceed~~~~~~~~~~
I don’t understand; isn’t the elbow pipe in the upper right corner of the water seal tank used for venting to the atmosphere? With such a large pressure difference, what is there still to doubt?
I’m a beginner and I have some questions. Under normal operating conditions, steam can flow through and be used properly, but shouldn’t there be a drain valve installed somewhere along the pipe as it warms up from a cold state, starting from the lower end and moving upwards?
Height shouldn’t be an issue; the problem lies in the container behind it. If there is a connection to the atmosphere, then the water should be able to be forced through. But if there is no such connection, it might fail due to the enclosed environment. Finally, I’d like to remind you that, based on your sketch, the water enters below the liquid level, so in order for it to flow through, pressure must be applied… So this factor needs to be taken into account. PS. If possible, it’s better to use level control for operating this storage tank, keeping the liquid level at a level that won’t cause it to overflow the inlet pipe
Steam for turbines at 3.75 Mpa
Release directly to the atmosphere; steam continuously leaks out under normal conditions
One thing that’s not clear is: if there is water in the pipeline behind the drain valve, and given such a high height, how does this water get into the water seal tank? Generally, since I see that ordinary steam traps discharge directly or into the water inlet and outlet pipes, with no significant height difference, that’s why I’m confused about this
This supply water already has a certain pressure as it enters below the liquid level. Generally, I see that steam traps either discharge the water on-site or connect to the water inlet and outlet pipes; therefore, I’m unsure about the height of the pipes behind the trap – how can the water reach that water seal tank? Thank you, senior; you are such a careful person!
Why bend it? I didn’t understand it
I misread it; at a height of 3m, a pressure of 3.7 MPa is more than sufficient to overcome that pressure. But there will definitely be a large amount of water behind the strainer, and in this case the pipe itself can be considered as a liquid seal, forming a water supply pipeline