Views: 16 Author: pqwt Publish Time: 2022-08-22 Origin: PQWT
When it is not clear where the specific location of the pipe leak, the tool commonly used to determine whether the area is leaking is the perforator, which is used to punch a small hole of 1.5 meters vertically above the suspected leak location. See if there is open water gushing out.
Listening to the sound rod commonly known as listening to the leakage rod, listening to the sound rod, listening to the sound rod, listening to the needle, listening to the rod, its shape as a probe, the tail is equipped with a spherical object can be closely fitted with the ear of the metal rod, the use of the principle of conduction can accurately determine the problem areas, through listening to the sound rod in contact with the surface of the equipment being spotted, you can collect a variety of air isolation and external interference but the ear can not hear all kinds of equipment in operation issued by Faint sound. It is like a doctor's stethoscope, which can hear the beating sound of the heart, the peristaltic sound of the stomach and intestines, and the normal sound of breathing inside the human body through the contact with the exterior of the human body.
As an ideal inspection tool, the range of application of the listening rod, urban water network pipeline, valve leakage, gas leakage, check the machine, equipment failure and other industries.
The operation method of the listening rod can be said to be simple to the extreme, but can accurately determine where the problem is to test, rely on the accumulation of time - experience: such as the city water network pipeline listening leak detection method is to listen to the thin tip of the end of the rod on the pipe exposure, listening tube on the ear, careful listening, you can identify the listening point near the pipe whether the leak, if there is a "hissing sound If there is a "hissing sound", it means that the water pipe may be leaking, the general experience is: if the loophole is very small, it is a "hissing" sound, if large, it is a "booming" sound. Experienced technicians can even determine the frequency of the sound of leaks based on how many meters the leak is within.
Listen to the sound rod is generally used in conjunction with the leak detector, water leak detection for accurate positioning of the location of the leak.
Leak detection is currently used mainly for pipe leak detector, leak detector, or called pressure pipe leak detector. The principle is that "the pipeline flowing water under pressure from the leak point is the impact of the noise generated by the inner wall along the pipeline propagation, or along the buried media spread to the ground, through the sensor to amplify the leak noise to determine the leak point". Use the sensor of the detection instrument above the road surface of the pipe to achieve the purpose of finding the leak.
How to determine where is the leak, and how is it reflected on the instrument?
The working principle of pipe leak detector is that when pressure water is rushed out from the broken mouth of the pipe after the leakage of pressure water, the sound vibration generated by friction with the pipe wall and other additional vibrations caused are transmitted above the ground of the pipe, and the leak is detected on the road with the instrument to find out the leak.
In general, the basic detection method is, connect the host, headphones, sensors. Turn on the switch, put on the headphones, place the leak detector sensor on the road above the pipeline, place it step by step according to the length of the pace, and listen step by step, the closer to the leak, the stronger the signal, the farther away from the leak the weaker the signal, by comparing the signal strength between different points to achieve the purpose of detecting the leak. Therefore, we use the instrument, a single point to listen to the leak signal is not meaningful, to multi-point repeatedly compared, compared with the sound vibration of the larger place is the leak, of course, we have to consider many other additional factors, such as the direction of the leak breakage mouth, because the pipe is round, if the side of the leak, may be larger points instead in the side of the road above the pipe, rather than being the pipe Above the road, so the location of the pipeline to know, in addition to the tee, bend, water pressure, burial depth, buried layer, etc. will have an impact on the detection to take these into account.
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