Reasons
1. There are defects in the structure of the condenser, and there are not enough channels for steam between tube bundles to reach the lower part of the condenser, so that the condensed water flows down from the upper tube and falls on the lower tube to be cooled again. However, when the steam flow is not heated, the degree of supercooling will increase when the condensed water flows into the hot well.
solution: adjust the structure
2. The water level of the condenser is high, so that some copper pipes are submerged by the condensed water, resulting in supercooling.
solution: adjust the condenser water level.
Extended information:
Technical features
Technical features of condenser blade cleaning:
1. Fast: two people can clean 1 condenser tubes at the same time. When cleaning, it can be cleaned in turn by Party A and Party B without stopping the machine, which greatly shortens the maintenance time of the condenser. It is especially suitable for emergency repair and cleaning when the vacuum of condenser in thermal power plant is poor in summer (the manhole door of condenser can be cleaned without removing the end cover).
2, safety: special polyethylene material-safe, not damaging the pipeline and tube sheet expansion. It is especially suitable for cleaning thin-walled copper tube and titanium tube of condenser in power plant.
3. High efficiency: Generally speaking, the cleaning warhead can be completed once through the pipeline. For the pipeline with a large amount of dirt or the first cleaning, it can be cleaned again. For some pipes that are blocked by sediment and can no longer see the opposite light, empty the gun once before putting the bullet into it for cleaning. Through one-time cleaning, the effect is obvious. After repeated cleaning, the end difference is obviously reduced, which greatly improves the efficiency of the unit.
4, easy to check: the cleaning bullet will completely take the dirt out of the condenser pipeline, and the cleaning effect is remarkable, and the inspection and cleaning effect is even more obvious.
5. low cost: the cleaning price is only 1/2 of that of high-pressure water jet cleaning.