What is Sonic Logging Tube?
Sonic Logging Pipe is now indispensable acoustic wave detection pipe, the use of Sonic Logging Pipe can detect the quality of a pile, acoustic logging pipe is a piling for ultrasonic testing method when the probe into the pile body of the internal channel.
Sonic Logging Pipe is also called ultrasonic testing pipe. The sound test pipe is divided into four parts: top pipe, center pipe, bottom pipe, and wood plug (or pipe cap) combined. The sound test pipe is directly deep-processed from the straight seam welded pipe, and can be welded to the corresponding joint at the nozzle of one end of the straight seam welded pipe. Different fittings correspond to different connection methods, and will have different names. Such as: clamp pressure type Sonic Logging Pipe, spiral Sonic Logging Pipe and so on.
Specification and Classification
1.Sonic Logging Pipe, also called ultrasonic testing pipe, has the following types of interface:
Clamp pressure sound test pipe, sleeve sound test pipe, spiral sound test pipe, socket sound test pipe, flange sound test pipe.
Among them, the most widely used, and the easiest to install is the clamp pressure sound pipe.
2.The common national standard models of these four types of Sonic Logging Pipe are:
φ50, φ54 and φ57, with wall thickness ranging from 0.8mm to 3.5mm for thin-walled. (The wall thickness of different connection methods is required, depending on the specific circumstances)
The length of sound test pipe is 3m, 6m, 9m. 12m length allows deviation of +-20mm.
In order to facilitate transportation and storage, the length of the sound pipe is generally 6 meters and 9 meters more than 12 meters.
Sonic Logging Pipe models are clamp pressure type and spiral type.
Clamping type Sonic Logging Pipe is recommended for thicknesses above 2.5, and spiral or sleeve type Sonic Logging Pipe is recommended for thicknesses below 2.5 The main product specifications are as follows:
First, clamp pressure ultrasonic Sonic Logging Pipe (hydraulic Sonic Logging Pipe) main specifications are:
50 thin-walled clamp pressure Sonic Logging Pipe specifications:
50 * 0.9, 50 * 1.0, 50 * 1.1, 50 * 1.2, 50 * 1.3, 50 * 1.4, 50 * 1.5, 50 * 1.8
54 thin-walled clamp pressure Sonic Logging Pipe specifications:
54 * 1.0, 54 * 1.1, 54 * 1.2, 54 * 1.3, 54 * 1.4, 54 * 1.5, 54 * 1.8
57 thin-walled clamp pressure Sonic Logging Pipe standards:
57 * 1.0, 57 * 1.1, 57 * 1.2, 57 * 1.3, 57 * 1.4, 57 * 1.5, 57 * 1.8
Second, spiral (threaded) Sonic Logging Pipe main specifications can also be done flange type, sleeve type:
Spiral thick-walled ultrasonic Sonic Logging Pipe specifications:
50 * 1.5, 50 * 1.8, 50 * 2.0, 50 * 2.2, 50 * 2.5, 50 * 2.75, 50 * 3.0, 50 * 3.5
Spiral thick-walled ultrasonic Sonic Logging Pipe specification standard:
54*1.5, 54*1.8, 54*2.0, 54*2.2, 54*2.5, 54*2.75, 54*3.0, 54*3.5
Spiral thick-walled ultrasonic Sonic Logging Pipe specification standards:
57*1.5, 57*1.8, 57*2.0, 57*2.2, 57*2.5, 57*2.75, 57*3.0, 57*3.5
Executive Standard:
Thin-walled steel Sonic Logging Pipe for concrete piles and requirements for use (GB/T31438-2015 etc...)
1, size, wall thickness error range:
Outer diameter ± 1.0% wall thickness ± 5% (Sonic Logging Pipe is a kind of welded pipe, according to the national standard provisions of the standard specification of the lower difference range should be 5%, that is to say, 50 * 1.5 Sonic Logging Pipe, the range of allowable wall thickness is 1.35 or so. (This data is an average value, because the wall thickness of each point of the Sonic Logging Pipe is different);
2, tensile strength (MP) ≥ 315MP;
3, tensile test (elongation) ≥ 14%;
4, compression test when the distance between the two compression plate is 3/4 of the outer diameter of the Sonic Logging Pipe, there should be no cracks;
5, bending test sonotube without filler, bending radius of 6 times the nominal outside diameter, bending angle of 120 °, sonotube does not appear cracks;
6, hydraulic test sonotube ends of the seal injection water pressure of 5MP, sonotube without leakage;
7, eddy current damage sonotrode weld seam without trachoma, cracks;
8, sealing test external pressure P = 215S / D no leakage, no deformation of the interface;
9, internal pressure P = 215S / D no leakage, the interface is not deformed;
10, pulling test at room temperature, it should be able to withstand 3000N pulling force for 60min connection part of no loosening, fracture;
11, vibration test in the test pressure of 1.2MP, sustained 100,000 times vibration, joints without leakage and shedding phenomenon;
12, torque test torque distance 120N.m, for 10min, the joint does not slip;
13, hardness test HRB ≥ 90 Sonic Logging Pipe wall hardness.
Sonic Logging Pipe Usage
It is widely used in oil and gas field development, petroleum industry, metallurgical industry, chemical industry, geological survey, seismic monitoring and other fields. Sound pipe has the advantages of good detection performance, high sensitivity, fast response, low manufacturing cost, etc. It is a widely used detection method at home and abroad.
When the Sonic Logging Pipe material or installation process is poor, it may cause slurry leakage, pipe plugging, fracture, bending, sinking, deformation and other accidents, which will have a greater impact on the ultrasonic transmission method for pile foundation integrity testing, or even make it impossible to carry out the ultrasonic transmission method testing.
Post time: Feb-19-2024