In a building's fire protection system, the role of fire piping is crucial. However, due to prolonged use, aging, corrosion and other factors, fire piping may leak. To ensure the reliability and safety of fire piping, regular water leakage detection is essential. In this paper, we will introduce the steps and methods of fire pipeline leakage detection using water leakage detection instruments in detail.
I. Preparation
In the use of water leakage detection equipment before, need to do the following preparatory work:
1. Ensure that the water leakage detection instrument power is sufficient to ensure that the use of a long time.
2. Check whether the headset is intact to ensure the clarity of sound transmission.
3. Ensure that the sensor is connected to the water leakage detection instrument to ensure the accurate transmission of data.
Second, the use of water leakage detection instrument for troubleshooting
1. "Census" mode detection: water leakage detection instrument close to the pipe for scanning, pay attention to the observation of the headset sound and instrument cursor signal changes. In the same situation (no water leakage pipe location) the sound of the headset and the instrument cursor signal are more consistent. However, in the pipe leakage position, the headset sound and the instrument cursor signal will appear abnormal (the headset sound will appear volume increase phenomenon, etc., the instrument cursor signal also appears to be consistently high). Compare the abnormalities in the headset sound and cursor signal to determine the suspected water leakage point.
2. "Positioning" mode detection: In order to verify the accuracy of the "suspected leakage point", use the "positioning" mode of the water leakage detection instrument for precise positioning. Take the suspected leakage point as the center, extend the inspection and comparison to both ends, and determine the point with the strongest signal as the "suspected leakage point" (also known as the excavation point).
Precautions
In the use of water leakage detection equipment for detection, need to pay attention to the following points:
1. In the detection, to ensure that the pipeline pressure in the normal range (generally 3-4 kg), in order to avoid excessive pressure resulting in damage to the instrument or affect the test results.
2. Keep the instrument and headset clean and dry to avoid water or other liquids from entering the inside of the instrument and causing damage.
3. If you encounter any problems during use, please contact a professional for maintenance or guidance.
4. Do not use the instrument in a flammable or explosive environment.
5. Ensure safety during the testing process to avoid accidental injury due to testing.
Fire pipe leakage detection is an important safety task that needs to be carried out carefully and conscientiously. In the process of troubleshooting, it is necessary to combine a variety of methods such as listening sound detection, instrumentation detection, etc. to determine the leakage point. At the same time, it is important to use water leak detection equipment correctly and pay attention to safety issues. Through the above steps and use of methods can be more effective fire pipe leakage detection work.
