Compressor dry gas seal

Generally, the unit has two-stage dry gas seals in series. The first-stage buffer gas (self-compressed process gas) has a small impact on the stiffness of the gas film, but the buffer gas pressure has a small impact on the gas film stiffness, but there must be a positive flow of gas. Generally speaking, the higher the pressure, the stiffness of the gas film increases slightly. The basic condition for the design of secondary buffer gas and isolation gas dry gas seal is that the gas source must be available on site. The gas source gas can be non-flammable and explosive medium gas, or it can be dry inert gas that does not pollute the environment, such as nitrogen and carbon dioxide. The gas source can come from the factory or from a specialized nitrogen generator

The dry gas seal of the compressor generally uses oil as the sealing medium. Oil can effectively fill the sealing gap and form a lubricating film to prevent gas leakage. If the pressure of the dry gas cannot reach the specified pressure and sufficient gas pressure cannot be formed to push the seal, the air film seal cannot be formed. This will cause gas leakage and affect the efficiency and performance of the compressor. The hazards of forming an air film seal are mainly reflected in the following aspects:: 1. Leakage: Insufficient air film sealing will cause gas leakage, reduce the efficiency of the compressor, and waste energy. 2. Wear and tear: Due to the poor lubrication effect of oil, the friction between mechanical parts increases, easily causing wear and damage. 3. Decreased efficiency: Due to increased leakage and friction, the efficiency and capacity of the compressor will decrease and the working effect will be unsatisfactory. Therefore, maintaining the dry gas seal in good condition is very important for the normal operation of the compressor. It is necessary to ensure that the pressure of the dry gas reaches the specified pressure to form an effective air film seal. At the same time, regular maintenance and maintenance, and replacement of seals and lubricants are also necessary. .

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Can dry gas seals be sealed with oil? ? ? I'm a newbie, so don't cheat me... Can oil be called dry gas? ? ?

The most basic requirements must be met. If you have temporary problems, you should be clear-headed and distinguish right from wrong. I sent a description and picture but it got stuck.

Generally, the unit has two-stage dry gas seals in series. The first-stage sealing gas (the process's own medium) has a small impact on the stiffness of the air film, but there must be a positive flow of gas. Generally speaking, the higher the pressure, the stiffness of the air film increases slightly. The secondary sealing gas and isolation gas generally use self-produced clean nitrogen.