The circulating water pipe is making a lot of noise. Please tell me what's going on.
Thread Content
The DN600 circulating water pipelines at the outlet of the three heat exchangers were plunged into the DN1000 circulating water return pipeline of the main pipe. However, the sound in the return water pipeline on site was very loud, and it felt like it was falling like a waterfall. The exact reason could not be analyzed. I thought for a long time about whether there might be gas inside---but the on-site engineer clearly vented it! The on-site piping is as shown in the picture. It seems that there may be no way to drain it cleanly. What do you think? 2. Since there is obvious vibration when standing above the on-site circulating water main pipe, and the ground of the main pipe has sunk 3cm, should we consider the subsidence of the foundation? 3. Calculating the flow rate, although the flow rate of the DN600 pipeline is slightly larger, reaching 3 meters. Is it due to the high flow rate? Therefore, based on the above phenomena, I feel that there is a problem, but the reasons for these scenes are still not clear. Now I want to reform, but I am worried that I can’t find the core problem, but I don’t think there is a problem at all. Please, readers, think of a solution, thank you.
Is the DN1000 pipe empty? Just like a water pipe stretched into a sewer to discharge water. Water flows under weightless conditions. It is normal for it to vibrate when it hits the bottom of the sewer.
1. It is estimated that there is air in the 1000 meter pipeline. 2. The flow rate of the circulating water pipeline is too high. Under normal circumstances, the flow rate in the circulating water pipeline should be about 1.5 meters. I don’t know if I’m right? 3. It is estimated that the sound was caused by the water coming down at a high speed of 600 meters, washing out the tee and turning sharply. I wonder if it would be better if it could be inserted diagonally into the main body.
I think it was the crashing sound!
Even a flow rate of 3 meters will not have such a strong impact. The initial design flow rate was not so high, but due to equipment layout reasons, there will be unavoidable flow bias. Directly inserted into the main pipe can be seen everywhere, and there are no problems with other similar projects, so it is relatively unclear why. We have made many sets of this type of device, hey
Is there less support? First determine where the vibrations and sounds are most intense.
Reduce the opening of the DN600 pipeline return valve a little； May reduce sound ；
I think the DN600 pipe under the water has run out.
What is the pressure of DN1000 pipeline? What is the inlet pressure of circulating water?