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What equipment is needed to detect water leaks in external network pipes

Views: 6     Author: pqwt     Publish Time: 2022-12-12      Origin: PQWT

Underground pipeline conveying water, but for how long there will be a leak, and will find that the leak occurs when the surface may not have signs, even if the water seeps out from the surface, the seepage point may not be the leak, especially when the ground has a cement and other cover, but even more so, the pipeline is generally buried deep in the ground, if a leak occurs, it is generally very difficult to detect the normal words. In the long run, it will cause a lot of damage. This time we need to use professional tools to detect, so what are the common pipe leak detection tools? And how to use it?

1、Underground pipeline detector

Underground pipeline detector

Underground pipeline detector can quickly and accurately detect the location, direction and depth of underground water pipes, metal pipes, cables, etc., and the location and size of the corrosion-resistant steel pipeline breakage point without destroying the ground cover


When it is not clear where the specific location of the pipe leak, to determine whether the area is leaking commonly used tool perforator. Above the suspected leak location, use the perforator to punch a small hole of 1.5 meters vertically. See if there is open water gushing out.

3、Listen to the leak stick


Listen to the leak stick commonly known as listen to the leak rod, listen to the sound rod, listen to the sound rod, listen to the needle, listen 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 the various types of equipment in operation issued by the Faint sound. It is like a doctor's stethoscope, which can hear the beating of the heart, the peristaltic sound of the stomach and intestines, and the normal breathing sound inside the human body through the contact with the human exterior.

As a kind of ideal inspection tool, its application scope: city water network pipeline, valve leakage, leakage, check the machine, equipment failure, coal mine water penetration sound, petroleum, chemical, power generation, metallurgy, mining, coal mining, machinery and other industries.

The operation method of listening to the leak stick can be said to be extremely simple, but can accurately determine the problem is to test, rely on the accumulation of time and experience: such as urban water network pipeline listening to the leak detection method is to listen to the leak of the thin tip of the end of the stick on the exposed end of the pipe, listening to the ear, careful listening, you can identify the listening point near the pipe whether the leak, if there is a "hiss 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 "boom" sound. Experienced technicians can even determine how many meters the leak is within based on the frequency of the sound.

Listen to the leak stick is generally used in conjunction with the leak detector, leak detector used to pinpoint the location of the leak.

4、Pipe leak detector

Pipe leak detector

Leak detection is currently mainly used to leak detector, leak detector, or called the pressure pipe leak detector. The principle is that "the pipeline is under pressure from the leak of water ejected when the impact of the noise generated by the inner wall along the pipeline propagation, or along the buried medium 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 pipeline to detect the purpose of finding the leak.

How to determine where is the leak, and how is it reflected on the pipe leak detector?

PQWT instrument is divided into census and positioning two modes, one is through the sensor received signal to the host computer after processing through the headset embodied, the leak location headset sound will be significantly louder, and will be the kind of very low sound, or will be accompanied by a sound similar to "zhi baring hiss", while the instrument screen cursor will be in a certain If the instrument reacts in this way, it can be judged as a suspected leak, and the instrument has advanced options to confirm the suspected leak location with point measurement and precise measurement methods, refer to the manual and leak detection instruction manual for specific operation.

Translated with www.DeepL.com/Translator (free version)