Deaerator water seal problem
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I have never understood the concepts of water seals and oil seals. The water tank of the deaerator is filled with water. What does its water seal mean? Generally where is the deaerator located?
Is there no answer to this post? I also have this question, that is, the medium in the deaerator is water and steam. What is the need for water sealing?
Atmospheric deaerators can be sealed with water. If the pressure is too high and the water seal is broken, the pressure will be released. There is no need to set up a safety valve. If it is a pressure deaerator, two safety valves must be set and water sealing is not allowed.
The atmospheric deaerator uses a water sealing device instead of a safety valve, which has overpressure protection and has drainage and deflation functions. It is generally located at a high overflow level.
Our device uses a rotary membrane deaerator. Is it an atmospheric type or a pressure type?
Our deaerator uses 1.0MPa steam to remove oxygen, has a water seal and a safety valve. The pressure of the water seal is much lower than the trip pressure of the safety valve； The safety valve is for the safety of the container, and the water seal mainly sets the maximum pressure for operation.
The water seal is used for automatic drainage of the water tank when the water level exceeds the water level. If it is opened (drainage is positive, the deaerator is not overpressured without drainage)
The water seal is connected to the overflow port and is a common safety and isolation device for atmospheric deaerators.
Rotary membrane deaerators are available in both atmospheric and pressure types. Which type of deaerator you choose mainly depends on your working parameters. Generally, the working pressure of atmospheric type is 0.02MPa and the working temperature is 104 degrees.