WO2018105801A1

WO2018105801A1 - System for detecting damage to coating of pipe buried underground

Info

Publication number: WO2018105801A1
Application number: PCT/KR2016/014675
Authority: WO
Inventors: 윤명섭
Original assignee: 윤명섭
Priority date: 2016-12-09
Filing date: 2016-12-14
Publication date: 2018-06-14
Also published as: KR20180066525A

Abstract

The present invention relates to a system for detecting damage to a coating of a pipe buried underground and, more particularly, to a system for detecting damage to a coating of a pipe buried underground, wherein a detecting stick is connected to a terminal through a wire and is provided with an alarm generating portion comprising a vibrator, a lamp, a speaker, and the like such that, when a measured potential value involves an abnormality, the alarm generating portion is activated and makes it possible to accurately recognize the point at which the coating of the pipe is damaged, without having to check the display screen of the terminal. The above-mentioned characteristics of the present invention can be accomplished by a system for detecting damage to a coating of a pipe buried underground, the system comprising: a detecting stick (10) for detecting an electric potential difference in a cathode type with regard to a pipe (1) buried underground using a lower electrode (11) of the stick; and a terminal (20) comprising an amplification portion (21) for amplifying a signal sensed by the detecting stick (10), a signal processing portion (22) for removing noise from the amplified signal and limiting and processing an inputted signal, an A/D conversion portion (23) for converting the processed sensed signal into a digital signal, a control portion (24) for analyzing information converted into a digital signal, calculating and analyzing the value of a current applied to the pipe (1), and outputting the degree of damage to the coating of the pipe through an image, a memory portion (25) for storing information processed by the control portion (24), a display portion (26) for displaying the information processed by the control portion (24) through a graphic image, and a power supply portion (27) for supplying power to each of the above portions, wherein the detecting stick (10) and the terminal (20) are connected through a wire, and the detecting stick (10) is provided with an alarm generating portion (12) for generating a signal such that a signal is generated in an area in which the coating of the pipe (1) is damaged, and the signal is delivered to the user.

Description

Coverage Damage Detection System of Underground Buried Pipes

The present invention relates to a system for detecting damage to cover of underground buried pipe, and more particularly, when an alarm is generated in a detection stick connected to a terminal wired by a terminal, such as a vibrator, a lamp, and a speaker. Even without checking the display screen of the terminal, the alarm generating unit is operated so that it is possible to pinpoint the damage point of the pipe coating.

In general, gas pipes, oil pipelines, and water and sewage pipes that are buried underground are constructed to prevent corrosion by covering the outer surface of the pipe, but when corrosion is caused by the external environment, the interior of the buried pipe The material flowing through the leak leaks to the outside, causing serious disasters such as environmental pollution or human accident.

Therefore, in order to detect the damage of the pipe in advance and prevent the leakage of gas, the buried pipe covering damage detector which displays the covering state of the buried pipe or generates a danger signal is used.

However, in general, the buried pipe coating damage detection operation is carried out while the operator touches the floor of the road with the electrode of the detection stick, and if the currents flowing through the pipe are collected at the damaged area, the potential difference with the reference electrode is judged and the coating is damaged. It is possible to grasp and, when looking at the display screen of the terminal, using the detection stick with both hands, the working method was very inconvenient, and the moving speed was lowered, so the work could not be improved.

Conventionally, Patent No. 10-0734923 "Pipe Corrosion Measuring Device and Pipe Corrosion Measuring Device Cover" (Prior Art 1) and Patent Publication No. 10-2016-0060304 "Pipe Coverage Damage Rate Measuring Device and Pipe Corrosion Determination Using the Same" Method "(prior art 2) has been proposed.

The prior art 1 includes "a test box, a cover covering the test box, a measuring part installed in a space formed by the test box and the cover, and an antenna connected to the transmitting / receiving part of the measuring part. Wherein the cover extends from the through hole and the through hole to form a groove, the groove is filled with a filler, and the antenna passes through the through hole and is located in the filler of the groove. to be.

The above-mentioned prior art 2 is a device for measuring a pipe covering damage rate of a pipe to which a corrosion current is applied by an external power supply method or a forced drainage method, wherein a current is applied to the pipe so that the pipe maintains a reference potential value. A source unit, a detecting unit measuring a potential value applied to the pipe, and a value of a current applied to the pipe from the source unit, and using the calculation formula to cover the pipe. And a pipe covering damage rate measuring device which comprises a terminal for calculating a damage rate.

However, the above prior art 1 is described to be a through-hole and the groove formed in the cover of the pipe corrosion measurement device, by installing the antenna within the filling material filled in the groove to prevent the shielding caused by the cover, the prior art 2 measuring the amount of current required for cathodic protection to the remote, and so description of them to the process of measuring the coating amount of damage of the buried piping as compared with the required amount of electric current applied at the time of cathodic protection design as the present invention, the terminal and the wire When an alarm occurs in the detection stick connected to the sensor, an error occurs in the measured potential value. However, even if the display screen of the terminal is not checked, there is no technology that can detect the damage of the pipe coating by the alarm generator.

The present invention has been made in view of the above-mentioned problems, and its object is to provide an alarm generating unit composed of a vibrator and a speaker on a detection stick connected to a wire by a terminal and do not check the display screen of the terminal when an error occurs in the measured potential value. Even if it does not provide the damage detection system of the underground buried pipe that can identify the point of damage to the pipe coating by the alarm generator.

Features of the present invention for achieving the above object, the detection stick (10) for detecting the potential difference of the cathode method for the underground buried pipe (1) using the lower electrode (11) of the stick; And an amplifier 21 for amplifying the signal detected by the detection stick 10, a signal processor 22 for limiting and processing the noise of the amplified signal and the input signal, and converting the processed detection signal into a digital signal. A / D conversion unit 23, the control unit 24 for analyzing the information converted into a digital signal to calculate the value of the current applied to the pipe (1), and outputs the degree of coating damage of the pipe as an image, A memory unit 25 storing information processed by the controller 24, a display unit 26 displaying information processed by the controller 24 in a graphic image, and a power supply unit 27 supplying power to the respective units. The terminal 20 is configured to include, the detection stick 10 and the terminal 20 is connected by wire, the detection stick 10 is provided with an alarm generating unit 12 for generating a signal pipe (1) ), A signal is generated from the damaged part of the sheath It can be achieved by the coating damage detection system of the underground buried pipe, characterized in that it can be delivered.

Another feature of the present invention for achieving the above object, the alarm generating unit 12 of the detection stick 10 is any one or a combination of the vibrator 12a, the lamp 12b and the speaker 12c. It can be achieved by the cover damage detection system of the underground buried pipe, characterized in that consisting of.

According to the present invention as described above, the worker wearing the terminal 20 in the state in which the current flows by the power supply 2 in the pipe 1 buried underground moves along the pipe (1) In the case where the damaged part of the coating is located between the detection sticks 10 held by both hands, the potential difference between the right electrodes 11 is generated due to the concentration of current, and the signal is displayed on the display unit of the terminal 20. As shown in (26), the operator can accurately identify the damage point of the pipe coating, and at the same time, the measurement signal is also transmitted to the alarm generating unit 12 provided in the detection stick 10 so that the vibrator 12a, the lamp 12b, and the speaker (12c), etc. can be operated to know the damaged parts of the pipe coating, so that when the operator moves along the pipe (1) continuously, it can move without looking at the display screen, making the detection work very convenient and quick. Not only can it increase the efficiency of the operation, but also when the abnormal signal is transmitted from the alarm generating unit 12, it can accurately grasp the damage level of the pipe through the display screen at that time. There are advantages such as being able to implement a system.

1 is a schematic device diagram illustrating a use state of the present invention;

2 is a perspective view illustrating one embodiment of the present invention;

3 is a perspective view illustrating a detection stick according to the present invention;

Figure 4 is a block diagram illustrating an embodiment of the present invention.

[Description of the code]

1: piping 2: power supply

10 detection stick 11 electrode

12: alarm generating unit 12a: vibrator

12b: Lamp 12c: Speaker

20: terminal 20a: belt

21: amplification unit 22: signal processing unit

23: A / D conversion unit 24: control unit

25 memory unit 26 display unit

27: power supply

Hereinafter, described in detail by the accompanying drawings a preferred embodiment for achieving the above object is as follows.

As shown in Figure 1 to Figure 4, the coating damage detection system of the underground buried pipe according to the present invention, the detection stick 10 and the terminal 20 is connected to a wired configuration, the operator terminal 20 While moving along the pipe (1) while wearing it on the upper body, the potential difference between the electrodes (11) of both detection sticks (10) when grasping the bottom of the road with the detection stick (10) held by both hands The sign of the potential is configured so that it can be known that the covering damage part occurs when the inversion phenomenon occurs.

Of course, the underground pipe (1) is connected to the ground power supply (2) and is configured to apply a current to the wire.

The detection stick 10 is configured to detect the potential difference of the cathode type with respect to the underground buried pipe 1 by using the lower electrode 11 of the stick, the detection sticks 10 held by both hands 1 ~ 2m It is configured to measure the potential difference between the two electrodes 11 apart from each other.

The terminal 20 is configured to be worn around the upper body of the worker using the belt (20a), so that the operator wearing the detection stick on both hands to check the display screen of the terminal 20 with the naked eye Consists of.

The terminal 20 is; An amplifier 21 for amplifying the signal detected by the detection stick 10, a signal processor 22 for limiting and processing the noise of the amplified signal and an input signal, and A for converting the processed detection signal into a digital signal. / D converter 23, the controller 24 for analyzing the information converted into a digital signal to calculate the value of the current applied to the pipe (1), and outputs the degree of cover damage of the pipe as an image, the controller A memory unit 25 storing information processed by the processor 24, a display unit 26 displaying information processed by the controller 24 as a graphic image, and a power supply unit 27 that supplies power to the respective units. Consists of.

The detection stick 10 and the terminal 20 are connected by a wire, and the detection stick 10 is provided with an alarm generating unit 12 for generating a signal in a site where damage occurs to the coating of the pipe 1. It is configured to generate an abnormal signal and deliver it to the worker.

The alarm generating unit 12 of the detection stick 10 is composed of any one or a combination of the vibrator 12a, the lamp 12b and the speaker 12c.

According to the present invention having the above-described configuration, a phenomenon occurs in which the amount of current is increased while the current is flowing by the power supply 2 in the pipe 1 embedded in the basement while the current is increased. At this time, when the worker moves along the pipe 1 while wearing the terminal 20, the damaged part of the coating is placed between both detection sticks 10 when the floor of the road is supported by the detection stick 10 held by both hands. When located, a potential difference between the electrodes 11 is generated due to concentration of current, and the signal is amplified by the amplifier 21, the signal processor 22, the A / D converter 23, and the controller 24. Since it is displayed on the display unit 26 through the operator will be able to determine the damaged point of the pipe coating.

In addition, when the covering damage portion of the pipe 1 is located between both detection sticks 10, the measurement signal is also transmitted to the alarm generating unit 12 provided in the detection stick 10, so that the vibrator 12a and the lamp 12b. ) And the speaker 12c, etc. are operated so that the damaged portion of the pipe coating can be known, and even if the operator does not check the display screen of the terminal 20, the coating damage of the pipe 1 can be accurately understood.

Therefore, when the operator moves continuously along the pipe (1), the detector can move without looking at the display screen, so that the detection can be done very conveniently and quickly, thus increasing the efficiency of the operation and at the same time generating an alarm. If (12) transmits an abnormal signal, it is possible to accurately grasp the degree of damage to the pipe through the display screen.

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments without departing from the spirit of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

Claims

A detection stick 10 for detecting a potential difference of a cathode type with respect to the underground buried pipe 1 using the lower electrode 11 of the stick; And

An amplifier 21 for amplifying the signal detected by the detection stick 10, a signal processor 22 for limiting and processing the noise of the amplified signal and an input signal, and A for converting the processed detection signal into a digital signal. / D converter 23, the controller 24 for analyzing the information converted into a digital signal to calculate the value of the current applied to the pipe (1), and outputs the degree of cover damage of the pipe as an image, the controller A memory unit 25 storing information processed by the processor 24, a display unit 26 displaying information processed by the controller 24 as a graphic image, and a power supply unit 27 that supplies power to the respective units. Consists of the configured terminal 20,

The detection stick 10 and the terminal 20 are connected by wire, and the detection stick 10 is provided with an alarm generating unit 12 that generates a signal, and a signal is generated at a site where damage is caused to the coating of the pipe 1. Coverage damage detection system of the underground buried pipe, characterized in that to generate and deliver to the user.
The method of claim 1,

The alarm generating unit (12) of the detection stick (10) is a cover damage detection system for underground buried pipe, characterized in that any one or a combination of a vibrator (12a), a lamp (12b) and a speaker (12c).