CN202708602U - Leakage detecting device for internal oil-gas pipeline - Google Patents
Leakage detecting device for internal oil-gas pipeline Download PDFInfo
- Publication number
- CN202708602U CN202708602U CN 201220409847 CN201220409847U CN202708602U CN 202708602 U CN202708602 U CN 202708602U CN 201220409847 CN201220409847 CN 201220409847 CN 201220409847 U CN201220409847 U CN 201220409847U CN 202708602 U CN202708602 U CN 202708602U
- Authority
- CN
- China
- Prior art keywords
- piston
- infrasonic wave
- detecting device
- piezoelectric
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field for the detection of an oil pipeline, in particular to a leakage detecting device for an internal oil-gas pipeline. The leakage detecting device consists of two parts, i.e. a docking mechanism and a detecting mechanism, wherein the docking mechanism comprises a flange plate, a piston cylinder, a piston, a base plate and a cover plate; and the detecting mechanism is formed by the means that two sets of infrasonic wave piezoelectric sensors are connected with a piezoelectric detector by a conductive electrode plate between the two sets of infrasonic wave piezoelectric sensors. As the leakage detecting device adopts a mature infrasonic wave piezoelectric sensing technology and the specific docking mechanism, the infrasonic wave generated by the leakage of liquid in the pipeline is directly fed back to the piezoelectric sensors in the pipeline through an oil-gas medium in the pipeline, so that the problem of an external pipeline wall sound wave detecting technology can be avoided in cooperation with the external piezoelectric detector, therefore, the leakage detecting device is longer in detecting distance, better in antijamming capability, and higher in detecting efficiency. The leakage detecting device is reasonable in whole structure design, and convenient to use.
Description
Technical field
The utility model relates to petroleum pipeline detection technique field, is specifically related to a kind of built-in oil feed channel leak detecting device.
Background technique
Because the oil and gas pipeline of field produces is located at the field more, pipeline corrodes dual corrosion impact from oil gas in external corrosion and the pipe, easily causes pipeline to occur leaking.Can detect by the mode of manual inspection and detection flow for a large amount of leakages, and just be difficult to realize for slight leakage.For the slight detection of leaking of oil and gas pipes, at present many employings attach the detection modes of acoustic detector (being sound wave piezoelectric transducer and piezoelectric detection instrument) at pipeline outer wall.There are two insoluble drawbacks in this detection mode, and the one, acoustic detector is subjected to the external environment condition noise effect; The 2nd, sound wave is large by the metal pipe-wall transmitting attenuation, distance is short, causes testing precision and detection efficiency low.
The model utility content
The purpose of this utility model is exactly the defective that exists for prior art, provides a kind of testing precision and detection efficiency high built-in oil feed channel leak detecting device.
Its technological scheme is: be comprised of docking mechanism and feeler mechanism's two-part, feeler mechanism is connected to form by conductive plate and the piezoelectric detection instrument of two groups of infrasonic wave piezoelectric transducers by therebetween; It is characterized in that: docking mechanism is to be fixed with piston cylinder at the flange plate with center hole, the piston cylinder top is provided with and piston cylinder sealed sliding piston movingly, the piston cylinder fixed base plate of the below of piston, form cavity between piston and the seat board, the below of cavity is the instrument storehouse that piston cylinder and seat board, flange plate form; In cavity and form axial compression and cooperate, the piezoelectric detection instrument is located in the instrument storehouse by whole installation for two groups of infrasonic wave piezoelectric transducers and conductive plate therebetween; The earth electrode of two groups of infrasonic wave piezoelectric transducers forms ground connection with piston and seat board respectively and docks, middle conductive plate is drawn wire, this wire passes seat board and is incorporated into access piezoelectric detection instrument behind the instrument storehouse, the earth electrode of piezoelectric detection instrument directly accesses on the piston cylinder by wire, offers through hole at flange plate.
Piston lower surface is fixed with positioning shaft, the central channel that arranges on positioning shaft lower end and the seat board or hole form to peg graft and cooperate, be respectively equipped with the circular groove of pegging graft and cooperating with the infrasonic wave piezoelectric transducer at piston and the opposing side of seat board, the outer wall of positioning shaft is provided with isolation layer, two groups of infrasonic wave piezoelectric transducers and conductive plate are ring structure, and are sleeved on outside the isolation layer of positioning shaft.
The utility model is owing to having adopted the infrasonic wave Piezoelectric sensing technique of technology maturation and special docking mechanism, with the infrasonic wave of pipeline inner fluid because of the leakage generation, directly feed back to the interior piezoelectric transducer of pipe by managing interior oil gas medium, cooperate outside piezoelectric detection instrument, avoided the outer existing problem of sonic detection technology of tube wall, so that it is longer to detect distance, antijamming capability more detects usefulness stronger.Its overall construction design is reasonable, easy to use.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model structural drawing.
Embodiment
With reference to Fig. 1, a kind of built-in oil feed channel leak detecting device is comprised of docking mechanism and feeler mechanism's two-part.Wherein, docking mechanism is to be fixed with piston cylinder 11 at flange plate 8, the piston cylinder top is provided with and piston cylinder 11 sealed sliding piston 2 movingly, piston cylinder 11 fixed base plates 6 of the below of piston 2, form cavity between piston 2 and the seat board 6, form the instrument storehouse below piston cylinder 11 interior seat boards 6 and between the flange plate 8.Feeler mechanism is connected to form with piezoelectric detection instrument 7 by the conductive plate 4 by therebetween of two groups of infrasonic wave piezoelectric transducers (or claiming piezoelectric ceramic) 13 up and down.In cavity and form axial compression and cooperate, piezoelectric detection instrument 7 is located in the instrument storehouse by whole installation for two groups of infrasonic wave piezoelectric transducers 13 and conductive plate therebetween 4.The earth electrode of two groups of infrasonic wave piezoelectric transducers 13 forms ground connection with piston 2 and seat board 5 respectively and docks, middle conductive plate 4 is drawn wire 5, this wire 5 passes seat board 6 and is incorporated into access piezoelectric detection instrument 7 behind the instrument storehouse, and the earth electrode of piezoelectric detection instrument 7 directly accesses on the piston cylinder 11 by earth lead 10.Offer through hole 9 at flange plate 8.
On the basis of above-described embodiment: piston 2 lower end surfaces are fixed with positioning shaft 12, the central channel that arranges on positioning shaft 12 lower ends and the seat board 6 or hole form to peg graft and cooperate, be respectively equipped with the circular groove of pegging graft and cooperating with infrasonic wave piezoelectric transducer 13 at piston 2 and the opposing side of seat board 6, the outer wall of positioning shaft 12 is provided with isolation layer 3, two groups of infrasonic wave piezoelectric transducers 13 and conductive plate 4 are ring structure, and are sleeved on outside the isolation layer 3 of positioning shaft 12.The purpose of setting up this technology contents is that the infrasonic wave piezoelectric transducer is positioned, and guarantees that it can be over against pipeline.
Offer through hole 9 at flange plate, make things convenient for optical viewer or instrument is connected with other external equipment.In order to increase the sealing between piston 2 and the piston cylinder 11, set up seal ring 1 in its connecting part.
During use pipe interior is inserted in the test section of this device, flange plate docks with piping flange, in time will be delivered on the infrasonic wave piezoelectric transducer because revealing the sound wave that produces from the oil gas medium in the pipeline, can whether leakage be arranged the Real-Time Monitoring oil and gas pipes by supporting piezoelectric detection instrument again.
Claims (2)
1. a built-in oil feed channel leak detecting device is comprised of docking mechanism and feeler mechanism's two-part, and feeler mechanism is connected to form by conductive plate and the piezoelectric detection instrument of two groups of infrasonic wave piezoelectric transducers by therebetween; It is characterized in that: docking mechanism is to be fixed with piston cylinder at the flange plate with center hole, the piston cylinder top is provided with and piston cylinder sealed sliding piston movingly, the piston cylinder fixed base plate of the below of piston, form cavity between piston and the seat board, the below of cavity is the instrument storehouse that piston cylinder and seat board, flange plate form; In cavity and form axial compression and cooperate, the piezoelectric detection instrument is located in the instrument storehouse by whole installation for two groups of infrasonic wave piezoelectric transducers and conductive plate therebetween; The earth electrode of two groups of infrasonic wave piezoelectric transducers forms ground connection with piston and seat board respectively and docks, middle conductive plate is drawn wire, this wire passes seat board and is incorporated into access piezoelectric detection instrument behind the instrument storehouse, the earth electrode of piezoelectric detection instrument directly accesses on the piston cylinder by wire, offers through hole at flange plate.
2. built-in oil feed channel leak detecting device according to claim 1, it is characterized in that: piston lower surface is fixed with positioning shaft, the central channel that arranges on positioning shaft lower end and the seat board or hole form to peg graft and cooperate, be respectively equipped with the circular groove of pegging graft and cooperating with the infrasonic wave piezoelectric transducer at piston and the opposing side of seat board, the outer wall of positioning shaft is provided with isolation layer, two groups of infrasonic wave piezoelectric transducers and conductive plate are ring structure, and are sleeved on outside the isolation layer of positioning shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409847 CN202708602U (en) | 2012-08-18 | 2012-08-18 | Leakage detecting device for internal oil-gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409847 CN202708602U (en) | 2012-08-18 | 2012-08-18 | Leakage detecting device for internal oil-gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708602U true CN202708602U (en) | 2013-01-30 |
Family
ID=47588904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220409847 Expired - Fee Related CN202708602U (en) | 2012-08-18 | 2012-08-18 | Leakage detecting device for internal oil-gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247172A (en) * | 2016-08-31 | 2016-12-21 | 辽宁鑫磊检测技术有限公司 | A kind of pipe detection device and using method |
| CN110174465A (en) * | 2019-05-27 | 2019-08-27 | 武汉科技大学 | A kind of small internal leakage device of on-line monitoring hydraulic cylinder |
-
2012
- 2012-08-18 CN CN 201220409847 patent/CN202708602U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247172A (en) * | 2016-08-31 | 2016-12-21 | 辽宁鑫磊检测技术有限公司 | A kind of pipe detection device and using method |
| CN110174465A (en) * | 2019-05-27 | 2019-08-27 | 武汉科技大学 | A kind of small internal leakage device of on-line monitoring hydraulic cylinder |
| CN110174465B (en) * | 2019-05-27 | 2022-01-11 | 武汉科技大学 | Device for monitoring tiny internal leakage of hydraulic cylinder on line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102644851B (en) | Intelligent detection ball for dry natural gas pipeline | |
| CN202708601U (en) | Leakage detecting device for external oil-gas pipeline | |
| CN102322935A (en) | Flowing noise measuring device | |
| CN203414248U (en) | Device for detecting gas tightness and static pressure of corrugated pipe assembly | |
| CN203298861U (en) | Hydraulic machinery operation monitoring device | |
| CN101358689B (en) | Pipe detection device | |
| CN108181380A (en) | The corrosion testing device and method of a kind of Natural Gas High-pressure Pipeline | |
| CN202708602U (en) | Leakage detecting device for internal oil-gas pipeline | |
| CN115076614A (en) | Leak protection detection device is used in pipeline under pressure inspection | |
| CN205118674U (en) | Pipeline leakage detection device | |
| CN103048098A (en) | Oil tubing string connector metal-metal sealing surface ultrasonic imaging examination method | |
| CN103672413A (en) | Method for detecting leakage of inside of tap water pipeline by means of ultrasonic waves | |
| CN100394099C (en) | Pipeline leakage signal sensing device | |
| CN100487394C (en) | Pipeline fluid noise auxiliary measuring device | |
| CN107102067B (en) | Ultrasonic examination sensor with weak rigid measuring head | |
| CN202562567U (en) | Longitudinal wave probe assembly for pipeline water level detection based on ultrasonic principle | |
| CN203414065U (en) | Probe seat apparatus used for measuring thickness of steel tube and applied in ultrasonic-wave rotated diagnostic machine | |
| CN106052969A (en) | Device and method for detecting gas leakage at packing of valve rod of valve | |
| CN202024987U (en) | Standard check testing device for pipeline ultrasonography detection device | |
| CN202056433U (en) | Sealing structure of bursting test | |
| CN203023810U (en) | Novel pipeline leakage non-destructive testing device | |
| CN203534667U (en) | Non-contact liquid level detection apparatus | |
| CN103899919A (en) | Novel pipeline leakage non-destructive detecting device | |
| CN210375244U (en) | High-maintenance right-angle electromagnetic flowmeter | |
| CN204405274U (en) | A kind of device suppressing instrument for the connection of multiple spot stagnation pressure tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140818 |
|
| EXPY | Termination of patent right or utility model |