What should be paid attention to the safe operation of marine heat exchanger?

2) Do the preheating of the pressure reducing valve and the adjustment work after commissioning;

3) When starting the unit, the cold side valve should be opened first, and then the hot side valve should be opened after stabilization; when the machine is stopped, the hot side valve should be closed first, and then the cold side valve should be closed.

4) After the heat exchanger is running normally, close the bypass valve of the steam-water heat exchanger, and the steam trap will work normally. If the temperature of the steam trap is too low, such as below 50℃, the bypass valve can be opened for operation. If the temperature of the trap is too high, such as above 90℃, and the condensate system is operating without pressure, the bypass valve is closed to prevent steam from passing through, causing soda Shock

5) Be as consistent as possible with similar heat exchangers, so that the operation is more stable and the efficiency is higher.

The operation adjustment is mainly to adjust the water supply temperature and flow according to the actual weather changes. The operator mainly controls the outlet water temperature of the unit by controlling the superheated steam inlet steam flow of the first-stage tube heat exchanger of the heat unit. When the outdoor temperature is high, the temperature is controlled by controlling the number of equipment running and adjusting the steam flow. But pay attention to reduce the opening frequency of the heat exchanger as much as possible to prevent the leakage of the sealing gasket caused by frequent opening and stopping.

When the heating load of the marine heat exchanger is reduced, it is more important to pay attention to the hydrophobicity of the steam pipeline. The main purpose is to prevent water hammer in the marine heat exchanger. The operation adjustment is to coordinate the entire system and do a unified deployment.