Detection methods and characteristics of mechanical seal leakage
Posted by AkmanSeals
from the Business category at
12 Jul 2022 07:48:42 am.
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1. Principle of leak detection
Regardless of the leak detection method used, it is important to understand its basic principles. Mechanical seal leak detection methods are extensive and reflect a variety of testing techniques. It is not easy to have a detailed understanding of the principles of many detection methods.
2. Sensitivity
The sensitivity of a leak detection method can be expressed in terms of the minimum leak rate that the method can detect. When choosing a method for detecting mechanical seal leaks, the sensitivity of each method, i.e. which method can detect which level of leak rate, should be considered. For example, when detecting a leak rate of 10-5cm3/s, it is meaningless to use a method with a sensitivity of 10-2 cm3/s. On the contrary, when detecting a leak rate of 102cm3/s, a method with a sensitivity of 10-5cm3/s It may be feasible in principle, but may not be economical in practice.
3. Response time
No matter what method we use, it will always take a certain amount of time to detect the leakage rate of the mechanical seal. The length of the response working time may have an impact on the accuracy and sensitivity of the leak detection. Usually, prolonging the detection and research time will improve the sensitivity. However, if the detection time is too long, due to changes in the development conditions of the social environment, it may reduce the detection accuracy of the enterprise. The response time mainly includes the response time of the technical testing instrument company itself, the lag time of gas flow, and the time required for the preparation of various activities. This must be taken into account when selecting a mechanical seal leak detection method.
4. Judgment of leak point
Some mechanical seal leak detection methods can only determine whether there is a leak in the system, but cannot determine where the leak point is; some mechanical seal leak detection methods can not only determine the leak point, but also the leak rate.
5. Consistency
For some mechanical seal leak detection methods, the results are basically the same whether the inspector is skilled or not; for some other methods, the results for professionals and amateurs are quite different. Where possible, methods that do not require skilled technical expertise to detect correctly should be used. Each method has different technical keys, and different mechanical seal leak detectors may not achieve consistent leak detection results.
6. Stability
Mechanical seal leak detection is an integrated technology of measurement and testing. It doesn't make sense if the test data isn't stable. Correct mechanical seal leak detection requires not only the stability of the detection instrument but also the stability of the detection method itself.
7. Reliability
Undetected leakage does not mean that we have no leakage, which should be analyzed and judged. When a method can be used for leak detection, it should be through understanding the method and whether it is safe and reliable. The reliability of the mechanical seal leak detection results is related to the research on the consistency and stability of the methods described above.
8. Economical
The economy is one of the keys to choosing a mechanical seal leak detection method. The economy of the leak detection method of mechanical seal is easy to consider, but it is difficult to evaluate the economy of the leak detection method from the aspects of leak detection equipment, technical quality of personnel, and leak detection results.
The above is about the method of mechanical seal leakage detection, I hope to help everyone. Akman Seals is a supplier of mechanical seals that sells products with guaranteed quality and reasonable price, which are worth choosing. If you are interested in mechanical seals, you can pay attention to our website.
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