Digital and intelligent method for positioning and detecting water leakage of underground pipeline and instrument therefor

A technology for underground pipelines and leak detectors, which is applied in the testing of instruments, machines/structural components, and the detection of fluids at leak points, etc. It can solve the problems of low auditory sensitivity and resolution, no record of detection results, and high instrument costs. problems, to achieve the determination and unification of detection results, the easy standardization of work procedures, and the effect of improving work efficiency

Inactive Publication Date: 2006-07-26
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] ① Due to the relatively low sensitivity and resolution of human hearing, it is impossible to detect and judge the occurrence of water leakage in many cases
For example, in areas where pipelines are deeply buried, complex pipelines, and areas with large acoustic interference, etc., the detection results are not satisfactory by using past detection methods and technologies.
[0012] ②Mainly rely on the hearing and experience of the detection personnel, the detection quality and results cannot b

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  • Digital and intelligent method for positioning and detecting water leakage of underground pipeline and instrument therefor
  • Digital and intelligent method for positioning and detecting water leakage of underground pipeline and instrument therefor
  • Digital and intelligent method for positioning and detecting water leakage of underground pipeline and instrument therefor

Examples

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Example Embodiment

[0035] Example 1: As shown in Figure 1, a digital high-intelligence underground pipeline positioning leak detector, including a housing 1, a sensor head 2, a telescopic rod 3, a pickup plate 4, an earphone 5 and a measuring circuit board 6; a sensor head 2 is set at the bottom of the housing 1 through the telescopic rod 3, the pickup 4 is connected to the sensor head 2, the sensor head 2 is connected to the input end of the measuring circuit board 6, and the earphone 5 is connected to the sensor head 2 through the measuring circuit 6 ; The sensor head 2 and the measurement circuit board 6 are powered by the battery 7.

[0036] Referring to FIG. 2, the housing 1 is provided with a ranging display 10, function keys 11 such as function conversion, frequency conversion, volume control, mute switch, etc., a frequency button 12 and a frequency spectrum histogram 13.

[0037] See image 3 , The measurement circuit (board) includes series preamplifier circuit, digital filter circuit and ea...

Example Embodiment

[0041] Embodiment 2: On the basis of the embodiment, a metal detection circuit part composed of a high frequency oscillator, an oscillation detector, an audio oscillator and a power amplifier is added. When detecting the metal tube, the pickup disc can be replaced by the ranging wheel and the metal detection disc. See Figure 5 , Figure 7 , The working principle of the metal detector of the present invention: The metal detector is composed of a high-frequency oscillator, an oscillation detector, an audio oscillator, and a power amplifier. The principle of detecting metal is to adjust the gain potentiometer of the high-frequency oscillator to just make the oscillation The device is in a critical oscillation state, that is to say, it just starts the oscillator. When the detection coil is close to a metal object, eddy currents will be generated in the metal conductor due to electromagnetic induction, which will increase the energy loss in the oscillating circuit, weaken the positive ...

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Abstract

The invention relates to a method and an instrument for checking positioning leaking of underground pipe lines. The invention has the functions of positioning pipe line, hunting leakage and monitoring leakage. The invention can complete leaking point pre-positioning and leaking point accurate positioning in one checking without knowing the pipe diameter of pipe. The invention has the advantages of having multi functions and of having high reliability.

Description

Technical field [0001] The invention relates to leakage monitoring technology for municipal water supply, gas supply, and heating pipe networks, in particular to a high-intelligence digital analysis method and instrument that integrates many functions of pipeline positioning, leak detection and leak detection correlation analysis. Background technique [0002] Water is a precious natural resource. Due to the poverty of fresh water resources and the high cost of water production, countries around the world, especially developed countries, attach great importance to the management of water supply and water conservation. The research and development of leakage control technology and equipment have been carried out very early. In the early 20th century, simple mechanical leak detection was adopted, the primary electronic leak detection device was invented in the 1940s, the loss noise computer was developed in the 1970s, the battery-driven leak detection facility was developed in the ...

Claims

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Application Information

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IPC IPC(8): G01M3/00G01M3/24G01V3/12
Inventor 张智陈宗杰康健曾晓岚
Owner CHONGQING UNIV
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