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Commonly used pipe leak detector principle

Views: 2     Author: pqwt     Publish Time: 2023-03-24      Origin: PQWT

Even if the pipes are of good quality, they will gradually deteriorate during use and inevitably leak. However, many pipes are buried or hidden underground and therefore invisible, which makes maintenance more difficult. In the past, a small pipe leak might have made a mess of the ground, but now there are many tools available to fix it. The following are professional pipe repair depth detection pipes that share common pipe leak detection tools.

pipe leak detector

I. Perforator

When it is not clear where a pipe leak is located, use a common tool, a hole shooter, to determine if the area is leaking. Above the suspected leak location, use the hole shooter to perforate 1.5 meters vertically. See if there is bright water coming out.

II. Listen to the sound of the sound rod

Listening to the sound rod commonly known as listening to the leak stick, listening to the sound rod, listening to the sound rod, listening to the needle, listening to the rod, etc., shaped like a probe, the tail is equipped with a spherical object that can be close to the ear of the metal rod, using the principle of conduction can accurately determine the problem area, through the contact point between the listening rod and the surface of the equipment, can be collected to a variety of equipment due to air isolation and external interference in the operation of the ear can not hear the faint sound. Just like a doctor's stethoscope, you can hear the beating of the heart, the peristaltic movement of the stomach and intestines, and the sound of breathing through human contact.

Listen to the sound rod as an ideal detection tool, its applications include urban pipe network pipeline, valve leakage, gas leakage, machinery, equipment failure detection, coal mine underground sound transmission, petroleum, chemical, power generation, metallurgy, mining, coal mining, machinery, etc..

Listen to the operation of the sound rod can be said to be extremely simple, but need to accumulate time and experience to accurately determine the problem: such as urban water pipeline leak test is to listen to the fine tip of the leak detection rod in the opening of the pipe leak, the receiver in the ear, you can identify the pipeline near the listening station whether the leak, if there is a "hissing" sound. If there is a "hissing" sound, it indicates that the pipe may be leaking, and the general experience is: if the hole is small, it is a "hissing" sound, if it is a large "rumbling" sound. Experienced technicians can even determine how many meters a leak is within based on the frequency of the sound. Leak detection rods are often used in combination with leak detectors to pinpoint the location of leaks.

Pipe Leak Detectors

Pipe leak detectors are currently used mainly as pipe leak detectors, leak detectors or pressure pipe side leak detectors. The principle is that "the water in the pipe under pressure from the leak point propagation, is generated by the impact of the pipe wall noise along the pipe propagation, or along the buried medium to the ground, through the sensor will leak noise amplification, to determine the leak point". The detector's sensor is used to detect the pipeline above the road to find the leak point.

Detection method of acoustic vibration leak detector

Detection principle: Apply pressure to the pipe and determine the location of the leak point by analyzing the sound characteristics, vibration frequency and intensity of the leak.

Detection process: understand the direction of the water pipe -> pressure -> leak detector position detection. Detection follows the principle of near first and then far, local first and then whole.

Knowledge: master the pipeline direction, pressure techniques, acoustic vibration frequency range, sound characteristics of water leaks.

pipe leak detector


1, micro-leakage: the use of water and air mixing pressure, so that the simple water sound into a mixture of water and bubbles, the normal sound of leakage should be a combination of impact, tumbling, disturbance, continuous noise.

2, noise: focus on observing the sound signal of water leakage from 400 to 800Hz, such as water leakage, the loudness of the sound will not change suddenly; or, the filter analysis mode of the instrument is only used to monitor the sound intensity signal between 400 and 800Hz.

3、Leak point crosstalk sound: the pipeline around the leak point is more densely distributed or the leak forms a hole, which is easy to produce crosstalk sound. In this case, the leak detector needs to patiently and carefully observe the subtle sound differences of water leaks at different frequencies to determine the leak point.

In the process of using the equipment, we will encounter some problems, including how to deal with the problem, assuming that you want to know more information related to pipe leak detection, then, please pay attention to our website oh.