城镇燃气管网类似于人体脉络，错综复杂的藏匿于整座城市中，而我们的任务就像管道医生一样，通过细致的诊断，将每条燃气管道精确定位、梳理分类，有序进行归整。

The urban gas pipeline network is similar to the human body vein, and is intricately hidden in the whole city. Our task is like that of pipeline doctors. Through careful and comprehensive diagnosis, each gas pipeline is accurately located, sorted and sorted, and sorted in an orderly manner.

地埋探测PE管道时主要用到燃气PE管道定位仪，此设备基于声学探测原理，分发射和接收两部分组成。音频驱动器通过转换接头连接到调压箱或者放散阀接口上，向燃气管道内施加特定组合频率的声波信号，声波信号带动管道内燃气共振并向远端传播，传播过程一部分声波能量可以到达地地面，我们再通过手持接收装置沿路面接收对应的声波信号，通过耳机内反馈的声波信号强度及数字显示的声波大小组合判断，从而快速定位出地埋燃气PE管道位置。使用效率及准确率较高。

The gas PE pipeline locator is mainly used in the underground detection of PE pipeline, which is based on the acoustic detection principle and consists of two parts: emission and reception. The audio driver is connected to the pressure regulating box or the vent valve interface through the adapter, and applies the acoustic signal of a specific combination frequency to the gas pipeline. The acoustic signal drives the gas in the pipeline to resonate and transmit to the far end. During the transmission process, part of the acoustic energy can reach the ground. Then we receive the corresponding acoustic signal along the road through the handheld receiver, The position of buried gas PE pipeline can be quickly located by judging the combination of the acoustic signal strength fed back from the headset and the acoustic wave size displayed by the digital display. High efficiency and accuracy.

1、PE管定位仪在探测时与阀井放散阀、调压柜排污口、调压箱法兰盘、入户登高管上的阀门等管道外露处连接。在监听音频信号定位时，根据管线外露部分来判断管线大致走向。由已知到未知，横切管线找出信号强度大的点作为管线位置点，依次找出后续位置点，并做出标记，将标记点连线即为管道的准确位置。

1. The PE pipe locator is connected with the valve well vent valve, the drain outlet of the pressure regulating tank, the flange plate of the pressure regulating tank, the valve on the household climbing pipe and other exposed parts of the pipeline during detection. When monitoring the location of the audio signal, first judge the general direction of the pipeline according to the exposed part of the pipeline. From known to unknown, cross-cut the pipeline to find the point with high signal strength as the pipeline location point, find out the subsequent location points in turn, and make marks, and connect the marked points to the exact location of the pipeline.

2、在无法确定管线的大致走向时，我们应该以接入点为圆心，以3-5米为半径，沿着圆周线盲探，找出信号强度值大的点标记为管线个位置点，将接入点与个点连接起来，就可以判断出管线大致走向；在沿着管线探测时，如果走向出现轻微弯曲，在弯曲线附近应当减小探测间距。

2. When it is impossible to determine the general direction of the pipeline, we should take the access point as the center of the circle and take 3-5 meters as the radius, conduct blind exploration along the circumference line, find out the point with high signal strength and mark it as the first location point of the pipeline, and connect the access point with the first point to determine the general direction of the pipeline; When detecting along the pipeline, if the trend is slightly bent, the detection distance should be reduced near the curve.

3、由于不同的土壤环境与管线埋设不一的深度，信号强度会有所不同。在确定管线走向的情况下，选择相对大的点作为管线位置点。为了确保管线位置点的准确性，通常选取少3个点来判断强弱。

3. Due to different soil environments and different buried depths of pipelines, the signal strength will vary. In the case of determining the pipeline direction, select a relatively large point as the pipeline location point. In order to ensure the accuracy of pipeline location points, at least 3 points are usually selected to judge the strength.

3、弯头的确定方法：在探测过程中，如果遇到弯头，继续沿初始方向向前探测，声波信号会突然减弱直消失。此时我们应当回到初始方向后一个强点，以此点为圆心，3米为半径沿圆周线盲探。在测出下一个相对信号强点后，将此点与圆心点连成一条直线作为假设管道大致走向。如果能在假设走向上继续测出更多相对大点，则个圆心点可判定为管线的拐点。此外，如果在初强点沿圆周盲探时，没有遇到信号强点，可以判定此点为管线终点。

3. Determination method of elbow: in the process of detection, if the elbow is encountered, continue to detect along the initial direction, and the acoustic signal will suddenly weaken until it disappears. At this point, we should go back to the last strong point in the initial direction, take this point as the center of the circle, and take 3m as the radius to conduct blind exploration along the circumference. After measuring the next relatively strong signal point, connect this point with the center point to form a straight line as the approximate direction of the pipeline. If more relatively large points can be measured on the assumed trend, the first center point can be determined as the inflection point of the pipeline. In addition, if no signal strong point is encountered during blind detection along the circumference of the initial strong point, it can be determined that this point is the end of the pipeline.

探测过程中注意事项：

Precautions during detection:

在现场探测过程中，由于PE管线抗压性较差，敷设过路管线时还要在管线的外部加一层钢制套管，在遇到过路套管时，音频信号会突然消失，此时可沿管线走向，在路面另一侧继续寻找信号位置点。两个位置点相连，即为管线走向。此外，出现信号丢失的现象时，也有可能是此处的土壤太过疏松，地下填埋建筑垃圾夯土不实，导致信号衰减厉害。

In the process of field detection, due to the poor compression resistance of PE pipeline, a layer of steel casing should be added to the outside of the pipeline when laying the crossing pipeline. When encountering the crossing casing, the audio signal will suddenly disappear. At this time, you can continue to find the signal location point along the pipeline direction on the other side of the road. The two location points are connected, which is the pipeline direction. In addition, when signal loss occurs, it is also possible that the soil here is too loose, and the underground construction waste is not compacted, resulting in severe signal attenuation.

现场探测时，可沿管线走向向前几米处继续寻找信号点进行探测；在现场探测中确实无法探测到信号的情况下，可以在上一个位置点来调整发射机波形、功率、频率等参数来变换声学信号组合，直找出一个清晰的声音。

During on-site detection, the signal points can be searched for several meters ahead of the pipeline direction; In the case that the signal cannot be detected in the field detection, the transmitter waveform, power, frequency and other parameters can be adjusted at the last location to transform the acoustic signal combination until a clear sound is found.

地下管线错综复杂，地质环境多变，声波信号在不同的传播环境下，会有不同程度的衰减；因此在探测过程中要尽量详细的收集已有管线资料，结合实际情况确定管道的走向和配件位置，这样能够大大减少工作量，提高工作效率。更多相关内容就来我们网站http://www.binzhouhengtong.com咨询！

The underground pipelines are complex and the geological environment is changeable. The acoustic signal will have different degrees of attenuation in different propagation environments; Therefore, in the process of detection, the existing pipeline data should be collected in detail as much as possible, and the pipeline direction and fitting position should be determined according to the actual situation, which can greatly reduce the workload and improve the work efficiency. Come to our website for more relevant content http://www.binzhouhengtong.com consulting service