Analysis and Repair Method of Graphite Condenser Failure Causes
Leakage of graphite condenser should be checked first and then dealt with accordingly
The main cause of leaking graphite condenser gaskets is insufficient gasket compression,or insufficient compression symmetry.The pressure and corrosion resistance of the sealing material itself may not meet the requirements;the position of the gasket may be displaced.
The leakage treatment method of graphite condenser gasket:
1.Carefully check the condition of the visible part of the gasket.If corroded or cracked under pressure,replace the gasket with a material suitable for the operating conditions.
2.If there is leakage around the bolt,tighten the bolt symmetrically.
3.If the sealing gasket between the heat exchange blocks leaks and the location of the leak point cannot be determined,the compression force of each spring should be measured carefully,and the location with the smaller compression force should be identified as the leak point.Loosen the flange bolts and repeat the procedure of step 2.When done,tighten the bolts.
4.The above is the maintenance method of vertical equipment,if it is the maintenance of horizontal equipment,it is the above method.The gaskets between the graphite heat exchange blocks leak,and the bolts cannot be loosened at will.The bolts on the lower part of the equipment should be tightened symmetrically from bottom to top.After solving the leakage,the bolts should be tightened to avoid more serious leakage due to the heavy weight of the heat exchange block.
Note:When tightening the bolt,it should be done slowly,and it should not be forced to reach the predetermined position at once.If conditions permit,please observe the change of leakage in real time to achieve the purpose of tightening one or several bolts at key points.The purpose is to vary the tightening level and eliminate leakage faults.
The reason why the temperature of the cooling water of the graphite condenser is too high
1.The main reason why the cooling water temperature is too high due to abnormal operation of the water pump or too small selection capacity
2.The valves on the cooling water circuit are not fully opened,which means that the cooling water system is not fully opened,which will definitely affect the cooling effect and cause the water temperature to not drop.
3.The important point is that there is a filter screen in the cooling system.If the screen is blocked,the water flow will be slowed down.Only a small part of the water will be cooled by the system,and most of the water will flow out at the original temperature..