CN102128351A - Sonar detection method for functional state of pipeline - Google Patents
Sonar detection method for functional state of pipeline Download PDFInfo
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- CN102128351A CN102128351A CN2010100227816A CN201010022781A CN102128351A CN 102128351 A CN102128351 A CN 102128351A CN 2010100227816 A CN2010100227816 A CN 2010100227816A CN 201010022781 A CN201010022781 A CN 201010022781A CN 102128351 A CN102128351 A CN 102128351A
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Abstract
The invention relates to a sonar detection method for the functional state of a pipeline, which is a detection method for detecting and positioning underwater objects in facilities such as the pipeline and the like by a sound wave technology. The method comprises the following steps of: 1, preparing for detection; 2, providing detection equipment; 3, performing sonar detection; and 4, identifying the outline of the pipeline. The deposition condition of sludge in a drainage pipeline can be accurately distinguished by a sonar image; and a deposition cross-section diagram of the sludge in the drainage pipeline is drawn according to the sonar image so as to provide an intuitive and reliable basis for the dredging and the maintenance of the drainage pipeline.
Description
Technical field
The present invention relates to a kind of sonar detecting method, especially, the present invention relates to a kind of sonar detecting method that is used to detect the pipeline function status, particularly be applied to the detection of function pipeline situation.
Background technique
Be accompanied by urban transportation facility---the construction of road, bridge and underground rail traffic etc.; be used to protect the drainage of public waters water quality and city public environment; very big development has also been arranged in recent years; the construction total amount of drainage pipe also increases year by year; meanwhile, a part of drainage pipe facility begins to occur because the damage of pipe interior and the decline that alluvial causes the pipe drainage function.In recent years, because the impeded drainage admittance of drainage pipe causes surface gathered water, the accident that the vehicle in the garage is flooded etc. is of common occurrence, and the normal operation to the city has constituted serious threat undoubtedly.Keep unimpeded in order to ensure piping facility, be in normal working state, need manage timely and maintenance.The traditional pipe interior alluvial and the detecting method of damaged condition generally adopt directly visual, and the diver feels or checks with some simple tools such as bamboo chips, exists many disadvantages such as the person is dangerous, the alluvial situation is difficult for finding, judgement is inaccurate.
Summary of the invention
At the deficiency and the drawback of traditional detection method, the purpose of this invention is to provide a kind of sonar detecting method of function pipeline situation.Described sonar detecting method can detect alluvial in the drainage pipe and damage situation by the acoustic sounding technology, thereby avoids the impeded drainage admittance to cause surface gathered water, accident that the part area, city is flooded etc. and the pollution that living environment is brought.
The technical problem that the present invention further solves is: reduce the difficulty of pipe interior information acquisition, the risk of personal security, improve dynamics and validity to pipe network inspection examination, for drainage pipe construction, management, maintenance, operation provide decision-making foundation.
The purpose that the present invention adopts is to be achieved through the following technical solutions:
A kind of sonar detecting method of function pipeline situation, this method may further comprise the steps:
The first step detects and prepares
In the described sonar detecting method, must gather information reconnaissance trip before detecting.Gather information and comprise following content: 1) existing waste pipe line chart; 2) technical data such as the record drawing of pipeline or construction drawing; 3) existing pipe detection data; 4) the required related data of assessment.In the described TV detecting method, reconnaissance trip comprises following content: 1) watch atural object, landforms, traffic and the pipeline distribution situation of surveying the district; 2) drive a well visual or instrument is checked the situations such as water level, deposition of pipeline; 3) check the pipe position, caliber, material in gathering information etc.When adopting described sonar to detect, the depth of water should not be less than 300mm in the pipeline.
In second step, detection facility is equipped with
After the probe load bearing equipment that described sonar detecting method adopts bears a heavy burden, do not roll or tilt; Described sonar detection facility roll sensor possesses the automatic compensation function in ± 45 degree; Described sonar assay device structures is firm, and good seal is furnished with explosion protection system and waterproofing system;
In the 3rd step, implement sonar and detect
Before detection, water sampling is calibrated system by adjusting acoustic velocity from tested pipeline; Before entering each segment pipe document image, the starting point of typing place name, highway section and tested pipeline section, terminal point numbering; The direction of propulsion of the Sonar Probe of described detection facility is consistent with water (flow) direction; The Sonar Probe of described detection facility is consistent with conduit axis, directly over the roll sensor sign court; The Sonar Probe of described detection facility transmit and receive the edge that the position surpasses carrying tool; When the Sonar Probe of described detection facility is put into the pipeline initial position, the just cable count measurement instrument processing of making zero; The Sonar Probe level of described detection facility is laid in place, reduces by how much picture distortion.Directly over the roll sensor sign court.
The 4th step, the conduit profile interpretation
Preestablishing a certain amount of interval and figure variation place, live capture conduit profile figure.
According to sonar detecting method of the present invention, described detection facility can be under 0 to 40 degree centigrade temperature conditions proper functioning.
According to sonar detecting method of the present invention, the maximum magnitude of described sonar detecting method reflection is not less than 3m.
According to sonar detecting method of the present invention, the resolution of described sonar detecting method 125mm scope should be less than 0.5mm.
According to sonar detecting method of the present invention, the uniform sampling number of spots of described sonar detecting method is greater than 250.
According to sonar detecting method of the present invention, it is 0.1m that the cable of described sonar detecting method is counted minimum unit of measurement, its trueness error is not more than ± and 1%.
According to sonar detecting method of the present invention, when the Sonar Probe of described detection facility was advanced or retreated, described cable kept tensioned state.
According to sonar detecting method of the present invention, the Sonar Probe gait of march of described detection facility is no more than 0.1m/s.
According to sonar detecting method of the present invention, the pipeline wire measurement error after calibration is less than 3%.
According to sonar detecting method of the present invention, be that the sampled point spacing of purpose is about 5m with the generaI investigation, and draw deposition situation profile diagram according to testing result.
According to sonar detecting method of the present invention, the length unit that system is provided with is a rice.
Sonar detecting method of the present invention, by the acoustic sounding technology underwater facility situation in the pipeline is detected, the detecting method that situation in the pipeline is shown and writes down, can understand more intuitively and be embedded in underground drainage pipe internal state, further reduce personal security risk and inspection fee, minimizing is to the influence of road traffic, and can avoid excavating damage that road pavement causes and the pollution that environment is brought.
Description of drawings
Fig. 1 is the construction schematic representation of sonar detecting method of the present invention;
Fig. 2 is the flow chart of sonar detecting method of the present invention.
Embodiment
Below, for a more detailed description to the present invention in conjunction with the accompanying drawings with embodiment, these embodiments only are the descriptions to best mode for carrying out the invention, scope of the present invention are not had any restriction.
Embodiment 1
As shown in Figure 1, be the construction schematic representation of sonar detecting method of the present invention.Sonar capsule is deep in the pipeline, and be connected with the control room by cable, like this can be in the control room, analyze sonar image, thereby can accurately distinguish the alluvial of the mud in drainage pipe situation, according to sonar image, draw sludgd deposition sectional view in the drainage pipe, for drainage pipe mediation maintenance provides intuitively, reliable foundation.
As shown in Figure 2, be the flow chart of sonar detecting method of the present invention.This method may further comprise the steps: the first step, detect and prepare; In second step, detection facility is equipped with; In the 3rd step, implement sonar and detect; The 4th step, the conduit profile interpretation.In detecting preparation process, when adopting described sonar detecting method to detect, the depth of water should not be less than 300mm in the pipeline.Must gather information reconnaissance trip before detecting.Gather information and comprise following content: 1) existing waste pipe line chart; 2) technical data such as the record drawing of pipeline or construction drawing; 3) existing pipe detection data; 4) the required related data of assessment.In the described TV detecting method, reconnaissance trip comprises following content: 1) watch atural object, landforms, traffic and the pipeline distribution situation of surveying the district; 2) drive a well visual or instrument is checked the situations such as water level, deposition of pipeline; 3) check the pipe position, caliber, material in gathering information etc.And sonar detects to detect with TV and carries out synchronously.Be equipped with for detection facility, after the probe load bearing equipment that described sonar detecting method adopts bears a heavy burden, do not roll or tilt; Described sonar detection facility roll sensor possesses the automatic compensation function in ± 45 degree; The detection facility sealing of adopting in the described detecting method should be furnished with explosion protection system and waterproofing system.Detecting method is selected, and considers that before detection water sampling is calibrated system by adjusting acoustic velocity from tested pipeline; Before entering each segment pipe document image, the starting point of typing place name, highway section and tested pipeline section, terminal point numbering; The direction of propulsion of the Sonar Probe of described detection facility is consistent with water (flow) direction; The Sonar Probe of described detection facility is consistent with conduit axis, directly over the roll sensor sign court; The Sonar Probe of described detection facility transmit and receive the edge that the position surpasses carrying tool; When the Sonar Probe of described detection facility is put into the pipeline initial position, with the processing of making zero of cable count measurement instrument.Best, the conduit profile interpretation is preestablishing a certain amount of interval and figure variation place, live capture conduit profile figure.
Improve as another step of the present invention, described detection facility can be under 0 to 40 degree centigrade temperature conditions proper functioning, can improve the adaptive capacity of system like this, enlarge job area.
As step improvement more of the present invention, the maximum magnitude of described sonar detecting method reflection is not less than 3m.
As another step improvement of the present invention, the resolution of described sonar detecting method 125mm scope should be less than 0.5mm.
As step improvement more of the present invention, the uniform sampling number of spots of described sonar detecting method is greater than 250.
Improve as another step of the present invention, the minimum unit of measurement of described cable count measurement instrument is 0.1m, trueness error is not more than ± and 1%, to improve the precision of measuring.
As another again step improvement of the present invention, when the Sonar Probe of described detection facility was advanced or retreated, described cable kept tensioned state.
As step improvement more of the present invention, the pipeline wire measurement error after calibration is less than 3%.
As a further improvement on the present invention, the Sonar Probe gait of march of described detection facility should not surpass 0.1m/s, when improving operating efficiency, guarantees the raising of operation quality.
Improve as another again step of the present invention, be that the sampled point spacing of purpose is about 5m with the generaI investigation, and draw deposition situation profile diagram according to testing result.
Sonar detecting method of the present invention, by the acoustic sounding technology underwater facility situation in the pipeline is detected, the detecting method that situation in the pipeline is shown and writes down, sonar image can accurately be distinguished the alluvial of the mud in drainage pipe situation, according to sonar image, draw sludgd deposition sectional view in the drainage pipe, further reduce personal security risk and inspection fee, minimizing is to the influence of road traffic, for drainage pipe mediation maintenance provides intuitively, reliable foundation.
Claims (10)
1. the sonar detecting method of a function pipeline situation may further comprise the steps:
The first step detects and prepares
In the described sonar detecting method, must gather information reconnaissance trip before detecting;
Gather information and comprise following content: 1) existing waste pipe line chart; 2) record drawing of pipeline or construction drawing; 3) existing pipe detection data; 4) technology evaluation data;
Reconnaissance trip comprises following content: 1) watch atural object, landforms, traffic and the pipeline distribution situation of surveying the district; 2) drive a well visual or instrument is checked water level, the deposition situation of pipeline; 3) check pipe position, caliber, the material in gathering information;
When adopting described sonar to detect, the depth of water should not be less than 300mm in the pipeline;
In second step, detection facility is equipped with
After the probe load bearing equipment that described sonar detecting method adopts bears a heavy burden, do not roll or tilt;
Described sonar detection facility roll sensor possesses the automatic compensation function in ± 45 degree;
Described sonar assay device structures is firm, and good seal is furnished with explosion protection system and waterproofing system;
In the 3rd step, implement sonar and detect
Before detection, water sampling is calibrated system by adjusting acoustic velocity from tested pipeline;
Before entering each segment pipe document image, the starting point of typing place name, highway section and tested pipeline section, terminal point numbering;
The direction of propulsion of the Sonar Probe of described detection facility is consistent with water (flow) direction;
The Sonar Probe of described detection facility is consistent with conduit axis, directly over the roll sensor sign court;
The Sonar Probe of described detection facility transmit and receive the edge that the position surpasses carrying tool;
When the Sonar Probe of described detection facility is put into the pipeline initial position, the just cable count measurement instrument processing of making zero;
The Sonar Probe horizontal positioned of described detection facility is directly over the roll sensor sign court;
The 4th step, the conduit profile interpretation
Preestablishing a certain amount of interval and figure variation place, live capture conduit profile figure.
2. sonar detecting method according to claim 1 is characterized in that: described detection facility can be under 0 to 40 degree centigrade temperature conditions proper functioning.
3. sonar detecting method according to claim 1 is characterized in that: the maximum magnitude of described sonar detecting method reflection is not less than 3m.
4. sonar detecting method according to claim 1 is characterized in that: the resolution of described sonar detecting method 125mm scope should be less than 0.5mm.
5. sonar detecting method according to claim 1 is characterized in that: the uniform sampling number of spots of described sonar detecting method is greater than 250.
6. sonar detecting method according to claim 1 is characterized in that: it is 0.1m that the cable of described sonar detecting method is counted minimum unit of measurement, its trueness error is not more than ± and 1%.
7. sonar detecting method according to claim 1 is characterized in that: when the Sonar Probe of described detection facility was advanced or retreated, described cable kept tensioned state.
8. sonar detecting method according to claim 1 is characterized in that: the Sonar Probe gait of march of described detection facility is no more than 0.1m/s.
9. sonar detecting method according to claim 1 is characterized in that: the pipeline wire measurement error after calibration is less than 3%.
10. sonar detecting method according to claim 1 is characterized in that: the sampled point spacing is about 5m, and draws deposition situation profile diagram according to testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100227816A CN102128351A (en) | 2010-01-14 | 2010-01-14 | Sonar detection method for functional state of pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100227816A CN102128351A (en) | 2010-01-14 | 2010-01-14 | Sonar detection method for functional state of pipeline |
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| CN102128351A true CN102128351A (en) | 2011-07-20 |
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| CN2010100227816A Pending CN102128351A (en) | 2010-01-14 | 2010-01-14 | Sonar detection method for functional state of pipeline |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299473A (en) * | 2015-09-21 | 2016-02-03 | 武汉特瑞升电子科技有限公司 | Sonar video amphibious detection method and system for pipelines |
| CN105465611A (en) * | 2015-11-16 | 2016-04-06 | 武汉中仪物联技术股份有限公司 | Sonar detection method for water drainage pipeline |
| CN106949859A (en) * | 2017-03-09 | 2017-07-14 | 中国市政工程中南设计研究总院有限公司 | The device and detection method of detecting shaft chamber interior drainage pipeline in the case of a kind of water level is higher |
| CN114626382A (en) * | 2022-05-12 | 2022-06-14 | 南京航空航天大学 | Automatic disease identification method for downward-facing water pipeline |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07333171A (en) * | 1994-06-14 | 1995-12-22 | Hitachi Ltd | Leak detection method and device |
| CN2262062Y (en) * | 1995-08-21 | 1997-09-10 | 杜健民 | Drainage pipeline cleaning vehicle |
-
2010
- 2010-01-14 CN CN2010100227816A patent/CN102128351A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07333171A (en) * | 1994-06-14 | 1995-12-22 | Hitachi Ltd | Leak detection method and device |
| CN2262062Y (en) * | 1995-08-21 | 1997-09-10 | 杜健民 | Drainage pipeline cleaning vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 唐建国等: "《上海市公共排水管道电视和声纳检测评估技术规程》", 31 December 2005 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299473A (en) * | 2015-09-21 | 2016-02-03 | 武汉特瑞升电子科技有限公司 | Sonar video amphibious detection method and system for pipelines |
| CN105465611A (en) * | 2015-11-16 | 2016-04-06 | 武汉中仪物联技术股份有限公司 | Sonar detection method for water drainage pipeline |
| CN106949859A (en) * | 2017-03-09 | 2017-07-14 | 中国市政工程中南设计研究总院有限公司 | The device and detection method of detecting shaft chamber interior drainage pipeline in the case of a kind of water level is higher |
| CN114626382A (en) * | 2022-05-12 | 2022-06-14 | 南京航空航天大学 | Automatic disease identification method for downward-facing water pipeline |
| CN114626382B (en) * | 2022-05-12 | 2022-10-11 | 南京航空航天大学 | Automatic disease identification method for downward-facing water pipeline |
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Application publication date: 20110720 |