Why is the system pressure fluctuating wildly in the flushing scheme for seal 53B?
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What is the reason for the pressure in the 53B system fluctuating between 0.4 MPa and 0.52 MPa? I would appreciate it if the experts could help answer this
There is a seal leakage; the flushing system is connected to the seal chamber. Is the pressure in your seal chamber around 45 kilograms?
I also suspect a leak in the primary seal, but why is the pressure in the sealing chamber fluctuating so much?
The medium fed into the pump in the 53B system can also vaporize; it’s necessary to inspect the mechanical seal. I’ve encountered this situation before
It’s the hydrogenation lean liquid pump; the temperature isn’t high either. How can it still vaporize? Are the pressure fluctuations in this sealing chamber that large?
It’s not the pressure fluctuations in the sealed chamber; the dynamic and static rings at the middle won’t leak that much. Although they are connected, the dynamic ring rotates, so such fluctuations are normal, and maintenance is then complete
Well... it’s supposed to be under maintenance; I just can’t figure out why there are pressure fluctuations. It should remain at a constant pressure once it stabilizes
First, check the 53B bladder accumulator
Does pressure change vary with temperature?
1. Is there any change in the pressure at the pump’s inlet and outlet? Is the pump suffering from severe cavitation, or is there vacuum conditions that cause leakage in the main seal, resulting in fluctuations in the inlet pressure? These fluctuations in inlet pressure also cause variations in the pressure within the sealing chamber. Is the temperature high when the white oil pump is in operation? A high temperature on the white oil side of the seal causes the medium on the main seal side to vaporize, leading to pressure fluctuations in the seal chamber. This results in poor formation of the liquid film at the seal surface, and wear and leakage at that surface. Please, fellow sailors, analyze it. After removing the seal, please take some photos to check; there is carbon buildup on the seal’s end face where it meets the lens. Check whether the auxiliary sealing ring is deformed due to high temperatures. 2. Check the pressure of the stored energy gas