How should a hydrostatic test be conducted on the inner cylinder of an atmospheric-pressure tank with a jacket?
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1) For multi-chamber containers, we should design them as separate chambers; therefore, a water filling test should be conducted on the inner liner of the tank. 2) Pressure vessels should be designed for the maximum pressure difference; therefore, the test pressure for the inner lining of the tank should be calculated based on the maximum negative pressure. May I ask which test should be conducted on this device?
1) For multi-chamber containers, we should design them as separate chambers; therefore, the inner lining of the tank should be designed accordingly
The inner cylinder should not be subjected to a water filling test; instead, it should be pressurized to 0.13 MPa.
Using an inner cylinder to hold water for leak testing is not appropriate; for multi-chamber containers, we should design them as separate chambers, and therefore the inner lining of the tank should be used for water retention tests. ”
The test pressure is 0.13 MPa; is it based on a design pressure of -0.1? 0.1 × 1.25 = 0.125, which rounds to 0.13 MPa
Yes, I didn’t notice; there’s a vacuum of -0.1, but that’s not my issue.
Yes, I didn’t notice; there’s a vacuum of -0.1, but that’s not my issue.
I didn’t change the hydrostatic test data due to this parameter, so it’s incorrect, but I think the issue we should discuss isn’t that. 1) For multi-chamber containers, we should design them as separate chambers; therefore, the inner lining of the tank shall undergo a hydrostatic test at 0.13 pressure. 2) Pressure vessels should be designed for the maximum pressure difference; therefore, the test pressure for the inner lining of the tank should be calculated based on the maximum negative pressure. May I ask which test should be conducted on this device?
Not quite sure? The test pressure can only be positive; it cannot be negative.