Why must the pressure difference between the compressor buffer gas and the balance pipe be greater than 0.3 MPa?
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Why must the pressure difference between the compressor buffer gas and the balance pipe be greater than 0.3 MPa?
I’m not quite sure about this question. In dry gas sealing, there is a sealing gas, as well as a buffer gas, which is also known as secondary gas, and an isolation gas. Generally, there is a pressure difference between the sealing gas and the balance tube; the pressure of the sealing gas must be higher than the pressure inside the sealing chamber. The pressure in the balance tube is essentially the inlet pressure. As for how much larger, different manufacturers have different requirements.
Here, we use Sichuan Nikki equipment; the pressure of the primary seal gas is 0.05 MPa higher than that in the balance tube
Here at Huayang Sealing, the design parameters are as follows
We are the buffer gas, the main sealing gas, and the isolation gas; indeed, we are the buffer gas that balances the pressure difference in the pipes
Can you send over the sealing drawings so I can take a look and learn from them?