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Underground pipeline anti-corrosion layer detector
Brief description: The SL-5 underground pipeline anti-corrosion detection instrument can easily and accurately detect the direction, depth, and precis
Product details
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The function and purpose of SL-5 underground pipeline anti-corrosion detector |
| This instrument can conveniently and accurately detect the direction, depth, and precise location of the leakage points of the insulation and anti-corrosion layer of underground pipelines without excavating the soil, so that the entire surface of the pipeline will no longer suffer from repeated soil erosion. It is a convenient and efficient detection instrument for oil fields, chemical industries, oil and gas transportation, water and electricity departments to ensure the construction quality inspection and maintenance inspection of the anti-corrosion layer of underground pipelines. |
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Characteristics of SL-5 Underground Pipeline Anti corrosion Detector |
| 1. Small size, light weight, and easy to carry; 2. The detection method is simple, easy to maintain, and has automatic protection function; 3. Low power supply voltage, dual-use for both AC and DC, strong applicability; 4. The transmitter has high power and efficiency; 5. Small detection error and strong anti-interference ability; 6. Stable and reliable performance, strong adaptability to the environment. |
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Main technical indicators of SL-5 underground pipeline anti-corrosion detector |
| 1. Leak detection accuracy: ≥ 0.35mm2 2. Position deviation: ＜ 30cm 3. Accuracy:> 90% 4 Scope of application: Underground anti-corrosion metal pipelines of various diameters for oil, gas, water, etc. （1） Technical specifications of transmitter: 1. Transmission power: ≥ 25W, adjustable; 2. Transmission frequency: 1K ± 0.1Hz, beat frequency 1-2Hz; 3. Output impedance matching: 0-100 Ω; 4. Launch distance: ≤ 5km (can be moved step by step beyond 5 kilometers); 5. Working current: ≤ 3A, 1-3A adjustable; 6. Working power supply: 12V (battery pack or car power supply); 7. Weight: 2.8Kg (excluding battery weight); 8. Dimensions: 99 × 220 × 220 （2） Technical specifications of the detector: Sensitivity: 0.1mV; 2. Deviation in direction and position: ＜ 20cm； 3 Detection depth: ≤ 5m； 4. Working power supply: 6V cadmium nickel battery pack; 5 Weight: 0.9Kg; 6. Dimensions: 60 × 160 × 120. （3） Technical specifications of leak detector: 1. Leak detection accuracy: ≥ 0.35mm2； 2. Leak detection depth: ≤ 5m； 3 Position deviation: ＜ 30cm； 4. Working power supply: 6V cadmium nickel battery pack; 5 Weight: 0.9Kg; 6. Dimensions: 60 × 160 × 120 |
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Detection principle and method of SL-5 underground pipeline anti-corrosion detector |
| By sending a 1KHz electromagnetic wave signal to the underground pipeline, the detector uses the principle that when the probe is perpendicular to the magnetic field lines and tangent to the ground plane, the received signal is the smallest (almost zero) to determine the direction and depth of the pipeline. By sending an AC signal source to the underground pipeline, when the anti-corrosion layer of the underground pipeline is corroded, the metal part at that location is short circuited with the ground, forming a current loop at the leakage point. The generated leakage point signal is radiated to the ground, and the radiation signal is maximized directly above the leakage point. Based on this principle, the leakage point can be accurately found. The leak detection method we use is the "human body capacitance method", which uses the human body as the sensing element of the leak detector. When the leak detector reaches the vicinity of the leak point, the leak detector begins to react. When it reaches directly above the leak point, the sound in the horn is the loudest, and the indicator on the meter head is the loudest, thus accurately finding the leak corrosion point. |
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