【Q&A Question 005】April 25, 2016
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This post was last edited by liuquan1100 on 2016-4-28 00:41. [Q&A Question No. 005] April 25, 2016: How to determine faults in the 52 sealing system? The answer key will be available after responding; scoring is based on addressing the key points. 1. If the pressure in the 52 seal oil tank (on-site or indoors) increases, it indicates a leak in the internal mechanical seal, with the fluid leaking into the seal oil tank. 2. If the liquid level in the seal oil tank rises to 30%, an alarm is triggered, indicating that the medium leaking from the internal mechanical seal is entering the tank ； A drop in the level of the seal oil tank indicates that the mechanical seal on the outside is leaking, allowing the seal oil to come into contact with air. 3. If the cooling water return stream contains oil, it indicates a leak inside the coiled tubes of the seal oil cooler; in this case, the pump must be stopped, the faulty component removed, and replaced.
Internal leakage: reduced liquid level; external leakage: reduced pressure
For single-stage pumps, seal leaks mainly occur on the external side. In pumps equipped with double-end face seals, it is possible to determine whether there is a leak from the first stage to the second stage by checking the liquid level in the sealing reservoir; if the level is high, then there is a leak from the first stage to the second stage, while if the level is low, leaks mainly occur on the external side. In reciprocating pumps, seal leaks are indicated by the pressure in the exhaust gas recovery tank at the rear, as well as the nitrogen pressure in the nitrogen sealing pipeline. Answers to questions regarding centrifuges are available upon request
First, check whether the pressure of the white oil system is within the normal range, and also see if the system pressure gauge is damaged. Then, increase the sealing pressure of the white oil and release it while checking whether there is fluid present; this will allow you to determine roughly whether there is a leak or not!
This post was last edited by zxsaqwe on 2016-4-25 at 11:34. 1. An increase in pressure indicates a leak in the internal mechanical seal. 2. If the liquid level in the seal oil tank rises to 30%, an alarm is triggered, indicating that the medium leaking from the internal mechanical seal is entering the tank ； A drop in the level of the seal oil tank indicates that the mechanical seal on the outside is leaking, allowing the seal oil to come into contact with air. 3. If the cooling water return stream contains oil, it indicates a leak inside the coil of the seal oil cooler.
Judging from the wear condition of the sealing surface; judging from the type of leakage; judging from thermal damage;
How to determine a fault in the 52 sealing system? An increase in pressure indicates a leak in the internal mechanical seal.
How to determine a fault in the 52 sealing system? 1. If the pressure in the 52 seal oil tank (on-site or indoors) increases, it indicates a leak in the internal mechanical seal, with the fluid leaking into the seal oil tank. 2. If the liquid level in the seal oil tank rises to 30%, an alarm is triggered, indicating that the medium leaking from the internal mechanical seal is entering the tank ； A drop in the level of the seal oil tank indicates that the mechanical seal on the outside is leaking, allowing the seal oil to come into contact with air. 3. If the cooling water return stream contains oil, it indicates a leak inside the coiled tubes of the seal oil cooler; in this case, the pump must be stopped, the faulty component removed, and replaced.