Help, please assist in analyzing the issue of water hammer in steam condensate
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This post was last edited by LQ198619 on 2017-4-8 at 16:59. Question: Water hammer in the condensate transfer pipeline. Water hammer location: Water hammer starts after the last control valve bank. Delivery process: Steam → Reboiler → Drain expansion vessel → To condensate recovery unit. Adjustments made: 1. Steam → reboiler → to condensate recovery unit. (Remove the steam expansion vessel.) 2. Turn off the valve on the condensate tank that is connected to the steam. (I don’t know what type of valve it is.) Additional information: The steam consumption of the reboiler is 4.5 T/h, and the condensate tank is always full. Adjusting the settings didn’t help; water hammer still occurs. Please, experts, help analyze what causes this water hammer – is it due to the high temperature of the condensate, or is there some other reason?
Is the water hammer behind the final control valve the same as that in the condensate recovery system pipelines?
Yes, in the case of mild water hammer, vibration occurs behind the control valve; when water hammer is severe, significant vibration takes place in the middle section of the delivery pipeline.
The condensation temperature reported for delivery is different from that on the official website! Causing water hammer!
This post was last edited by LQ198619 on 2017-4-9 at 15:27. Can it be understood that the temperature of the condensed water is still a bit high? Or it may be that the insulation of the delivery pipeline is inadequate, causing the temperature to drop rapidly when the delivery distance is long
There is a temperature difference in the condensate water! That’s right! It can be understood that way!
When the pressure in the steam expansion vessel is 0.2 Mpa, the maximum temperature of the condensate water inside can reach 134°C; the temperature at the bottom is lower due to heat loss. Causes of water hammer in downstream condensate pipes: 1) Secondary steam causing water hammer ； 2) Water pressure shock. There is an article on the WeChat official account \"Fured Steam Energy Saving\" titled \"The ‘Number One Killer’ of Steam Systems – Water Hammer\", which can also be found on the website with the same name——Fured Steam Energy Saving.