CN108572396A - A kind of underground gas pipeline detection method - Google Patents
A kind of underground gas pipeline detection method Download PDFInfo
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- CN108572396A CN108572396A CN201810391322.1A CN201810391322A CN108572396A CN 108572396 A CN108572396 A CN 108572396A CN 201810391322 A CN201810391322 A CN 201810391322A CN 108572396 A CN108572396 A CN 108572396A
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- pipeline
- conducting wire
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- electromagnetic wave
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
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- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention provides a kind of underground gas pipeline detection method, this method is specially the transmitter of pipe and cable detector and underground piping forms current loop, and the receiver of pipe and cable detector receives electromagnetic wave signal caused by current loop to judge the trend and subterranean depth of underground piping.Current loop produces prodigious electromagnetic field, so that electromagnetic wave signal is very strong, deeper in buried depth of pipeline, the receiver on ground can also receive electromagnetic wave signal, so that the actual grade of the more acurrate detection pipeline rout and the pipeline with buried depth at 4 meters or more of receiver.
Description
Technical field
The invention belongs to detection technology fields, and in particular to a kind of underground gas pipeline detection method.
Background technology
In the Detection Techniques to steel gas pipe underground, most effective is also that be widely used visited by electromagnetic wave
It surveys.But there is certain limitation using this quasi-instrument detection steel gas pipe underground, be wherein exactly accurately to detect
Buried depth is more than 4 meters of pipeline.The principle of this kind of detection instrument：Transmitter connecting pipe sends specific electromagnetic wave to underground piping
Signal, receiver receive the electromagnetic wave of specific frequency by internal coil, can detect accordingly the trend of target pipeline with
Buried depth.
This kind of instrument detects the trend that pipeline detection of the buried depth in 4 meters goes out under normal circumstances and buried depth deviation still compares
Small.Once buried depth of pipeline is more than 4 meters, the electromagnetic wave signal of transmitter is decayed serious during passing ground back from underground, connect
Receipts machine can not receive electromagnetic wave signal, and deviation also occurs for the trend for the buried depth and pipeline that receiver is just displayed without pipeline.
This makes some pass through riverbed, can not detect trend and buried depth by the push pipe in farmland, and there is prodigious security risks.
Invention content
Therefore, the purpose of the present invention is to provide a kind of underground gas pipeline detection methods, and it is more than 4 meters that can detect buried depth
Underground piping.
In order to achieve the above objectives, the present invention provides a kind of underground gas pipeline detection method, and the underground gas pipeline is visited
Survey method includes：
Step 1：The input terminal of the transmitter of pipe and cable detector and output end are separately connected to one end and of the first conducting wire
One end of two conducting wires；
Step 2：By the above ground portion of the other end connecting pipe of first conducting wire, by the another of second conducting wire
Hold the above ground portion of the connecting pipe other end；
Step 3：Start the power supply of the receiver of the transmitter and pipe and cable detector, the transmitter and the pipeline
Current loop is formed, current loop generates electromagnetic wave signal；The frequency of the receiver is adjusted to the frequency with the transmitter
Rate is consistent；
Step 4：The position of the pipeline is estimated according to the above ground portion of the pipeline, the receiver is perpendicular to described
Pipeline is simultaneously scanned to both sides along the vertical duct orientation respectively, obtains the numerical value of electromagnetic wave signal power；
Step 5：The position of electromagnetic wave signal peak value is received in the receiver, reads the display screen of the receiver
On buried depth value；The buried depth value is the practical buried depth depth of the pipeline.
Preferably, first conducting wire and second conducting wire and the pipe-line are relatively parallel.Conducting wire and pipe line
Road is parallel, can prevent electromagnetic wave signal from weakening.
Preferably, first conducting wire and second conducting wire are more than 2 meters at a distance from the pipeline.It prevents on conducting wire
The electromagnetic wave signal that the electric current on electromagnetic wave signal and pipeline that electric current is sent out is sent out interferes with each other.
Preferably, in step 3, the mode setting of the receiver is peak-to-valley value method pattern and depth measurement pattern.Peak-to-valley value
Method can determine that the position of pipeline, depth measurement pattern directly display pipe on a display screen by directly checking peak point on a display screen
The buried depth numerical value in road, needs not move through conversion.
Preferably, in the step 2, first conducting wire connects the floor portion of the pipeline with second conducting wire
Before point, connecting pipe, valve or the cloudy rust or paint protected in stake of the above ground portion are removed.So that the electricity of transmitter and pipeline
Gas connection is good.
What the present invention generated has the beneficial effect that：Transmitter input terminal and output end connecting pipe and pipeline form electric current and return
Road, current loop produce prodigious electromagnetic field so that electromagnetic wave signal is very strong, deeper in buried depth of pipeline, ground
Receiver on face can also receive electromagnetic wave signal, so that the more acurrate detection pipeline rout of receiver and existing with buried depth
The actual grade of 4 meters or more of pipeline.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of flow chart of underground gas pipeline detection method of the present invention；
Fig. 2 is a kind of operating diagram of underground gas pipeline detection method of the present invention.
Wherein, 1, transmitter；2, pipeline；21, the aerial part of pipeline；3, receiver.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
The specific implementation mode of the present invention is described below in conjunction with attached drawing.
Fig. 1-2 shows that a kind of underground gas pipeline detection method, the underground gas pipeline detection method include：
Step 1：The input terminal of the transmitter 1 of pipe and cable detector and output end are separately connected the first conducting wire and second to lead
Line, the model RD8000 or RD8100 of pipe and cable detector；
Step 2：By the above ground portion 21 of the other end connecting pipe of first conducting wire, by the another of second conducting wire
The above ground portion 21 of one end connecting pipe other end；
Step 3：Start the power supply of the receiver 3 of the transmitter 1 and pipe and cable detector, the transmitter 1 and the pipe
Road 2 forms current loop, the frequency of the receiver 3 is adjusted to consistent with the frequency of the transmitter 1；Transmitter and pipeline
Current loop is formed, big magnetic field can be generated, send out strong electromagnetic wave signal.
Step 4：The position of pipeline 2 is estimated according to the above ground portion 21 of pipeline, receiver 3 is perpendicular to pipeline 2 and along vertical
It is scanned respectively to the both sides of pipeline in 2 direction of the pipeline；Position is estimated as pipeline using the straight line of above ground portion being linked to be,
The detection of signal strength is carried out to confirm the actual position of pipeline in the position both sides for estimating pipeline using receiver.
Step 5：The position of electromagnetic wave signal peak value is received in the receiver 3, reads the display of the receiver 3
Buried depth value on screen；The buried depth value is the practical buried depth depth of the pipeline 2.The position of electromagnetic wave signal peak value is pipeline
Surface, the buried depth depth detected herein is the actual buried depth depth of pipeline.
Further, first conducting wire and second conducting wire and 2 circuit of the pipeline are relatively parallel.Conducting wire and pipeline
Line parallel can prevent electromagnetic wave signal from weakening.
Further, first conducting wire and second conducting wire are more than 2 meters at a distance from the pipeline 2.Prevent conducting wire
On the electric current electromagnetic wave signal and pipeline that are sent out on the electromagnetic wave signal that is sent out of electric current interfere with each other.
Further, in step 3, the mode setting of the receiver 3 is peak-to-valley value method pattern and depth measurement pattern.Peak
Valley method can determine that the position of pipeline, depth measurement pattern are directly aobvious on a display screen by directly checking peak point on a display screen
The buried depth numerical value for showing pipeline, needs not move through conversion.
Further, in the step 2, first conducting wire connects the ground of the pipeline with second conducting wire
Before part 21, connecting pipe, valve or the cloudy rust or paint protected in stake of the above ground portion 21 are removed.Make transmitter and pipe
The electrical connection in road is good.
The operation principle or working method of the present invention：Transmitter 1 forms current loop, current loop production with underground piping
Raw strong electromagnetic wave signal is received machine reception, and receiver is by judging the power of received electromagnetic wave signal come under definitely
The trend and subterranean depth of pipeline.
What the present invention generated has the beneficial effect that：Transmitter input terminal and output end connecting pipe and pipeline form electric current and return
Road, current loop produce prodigious electromagnetic field so that electromagnetic wave signal is very strong, deeper in buried depth of pipeline, ground
Receiver on face can also receive electromagnetic wave signal, so that the more acurrate detection buried depth of pipeline of receiver and buried depth are 4
Meter or more pipeline actual grade.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention's
Protection domain.
Claims (5)
1. a kind of underground gas pipeline detection method, which is characterized in that the underground gas pipeline detection method includes：
Step 1：The input terminal of the transmitter of pipe and cable detector and output end are separately connected one end of the first conducting wire and second to lead
One end of line；
Step 2：By the above ground portion of the other end connecting pipe of first conducting wire, the other end of second conducting wire is connected
Connect the above ground portion of the pipeline other end；
Step 3：Start the power supply of the receiver of the transmitter and the pipe and cable detector, the transmitter and the pipeline
Current loop is formed, current loop generates electromagnetic wave signal；The frequency of the receiver is adjusted to the frequency with the transmitter
Rate is consistent；
Step 4：The position of the pipeline is estimated according to the above ground portion of the pipeline, the receiver is perpendicular to the pipeline
And scanned respectively to both sides along the vertical duct orientation, obtain the numerical value of electromagnetic wave signal power；
Step 5：The position of electromagnetic wave signal peak value is received in the receiver, on the display screen for reading the receiver
Buried depth value；The buried depth value is the practical buried depth depth of the pipeline.
2. a kind of underground gas pipeline detection method according to claim 1, which is characterized in that first conducting wire and institute
It states the second conducting wire and the pipeline is relatively parallel.
3. a kind of underground gas pipeline detection method according to claim 1, which is characterized in that first conducting wire and institute
It states the second conducting wire and is more than 2 meters at a distance from the pipeline.
4. a kind of underground gas pipeline detection method according to claim 1, which is characterized in that in the step 3,
The mode setting of the receiver is peak-to-valley value method pattern and depth measurement pattern.
5. a kind of underground gas pipeline detection method according to claim 1, which is characterized in that in the step 2,
Before first conducting wire connects the above ground portion of the pipeline with second conducting wire, the connecting tube of the above ground portion is removed
Road, valve or the cloudy rust or paint protected in stake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391322.1A CN108572396A (en) | 2018-04-27 | 2018-04-27 | A kind of underground gas pipeline detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391322.1A CN108572396A (en) | 2018-04-27 | 2018-04-27 | A kind of underground gas pipeline detection method |
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| CN108572396A true CN108572396A (en) | 2018-09-25 |
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| CN201810391322.1A Pending CN108572396A (en) | 2018-04-27 | 2018-04-27 | A kind of underground gas pipeline detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521464A (en) * | 2018-11-16 | 2019-03-26 | 湖南普奇地质勘探设备研究院（普通合伙) | A kind of combustion gas PE locating pipeling method |
| CN110196452A (en) * | 2019-06-25 | 2019-09-03 | 北京城建勘测设计研究院有限责任公司 | Extraordinary great burying underground piping detection device |
| CN109298453B (en) * | 2018-11-14 | 2024-03-19 | 广东瑾诚城市规划勘测设计有限公司 | Method and device for deeply detecting non-excavation deeply-buried underground pipeline |
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| CN103984030A (en) * | 2014-05-26 | 2014-08-13 | 西南石油大学 | PCM locating method for oil gas station yard buried pipeline |
| CN104090304A (en) * | 2014-07-23 | 2014-10-08 | 李天智 | Method and system for directly conducting remote detection on nonmetal pipelines |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298453B (en) * | 2018-11-14 | 2024-03-19 | 广东瑾诚城市规划勘测设计有限公司 | Method and device for deeply detecting non-excavation deeply-buried underground pipeline |
| CN109521464A (en) * | 2018-11-16 | 2019-03-26 | 湖南普奇地质勘探设备研究院（普通合伙) | A kind of combustion gas PE locating pipeling method |
| CN109521464B (en) * | 2018-11-16 | 2020-12-25 | 湖南普奇地质勘探设备研究院（普通合伙) | Gas PE pipeline positioning method |
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Application publication date: 20180925 |
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