CN203963516U - Oil transportation, feed channel leakage monitoring infrasonic sensor - Google Patents
Oil transportation, feed channel leakage monitoring infrasonic sensor Download PDFInfo
- Publication number
- CN203963516U CN203963516U CN201420397327.2U CN201420397327U CN203963516U CN 203963516 U CN203963516 U CN 203963516U CN 201420397327 U CN201420397327 U CN 201420397327U CN 203963516 U CN203963516 U CN 203963516U
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- CN
- China
- Prior art keywords
- central shaft
- insulating bush
- piezoelectric element
- feed channel
- oil transportation
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Abstract
The utility model discloses a kind of oil transportation, feed channel leakage monitoring infrasonic sensor, comprise central shaft, the axial centre of central shaft is provided with through hole, the front-end and back-end of through hole are connected with stopper and Q9 seat respectively, rear portion and the joint outer part of the outer wall of central shaft are tightly connected, the front portion of the outer wall of central shaft is provided with front insulating bush and rear insulating bush, central shaft and front insulating bush are radially provided with the aperture being connected, the outside of front insulating bush and rear insulating bush is provided with piezoelectric element, piezoelectric element is provided with electrode, the output line of piezoelectric element is connected with Q9 seat with through hole through aperture, the front portion of central shaft is provided with overcoat.Have advantages of that monitoring frequency is wide, highly sensitive, signal to noise ratio is good, detect distance.
Description
Technical field
The utility model relates to a kind of oil transportation, feed channel leakage monitoring equipment, relates in particular to a kind of oil transportation, feed channel leakage monitoring infrasonic sensor.
Background technique
Along with the needs of energy construction and people's life, oil transportation, gas pipeline are built longer and longer, and most pipelines are all buried underground, if the oil, the gas leakage signal that produce during to piping failure (natural or artificial) carry out Real-Time Monitoring, and alarm, will cause very serious consequence.Existing many of case of explosion is leaked because of oil transportation, feed channel in China, causes casualties, facility and environment heavy damage, and economic loss cannot be estimated.
In order to solve the detection technique problem of pipe leakage, prior art provides following detection facility:
One is capacitive transducer, finds its complicated structure, and cost is high, and stability is not very good; Another kind is pipe detection device, and the measurement bandwidth of finding it is not very wide, and therefore detection range is subject to certain limitation.
Model utility content
The purpose of this utility model is to provide that a kind of monitoring frequency is wide, highly sensitive, signal to noise ratio is good, detects oil transportation, the feed channel leakage monitoring infrasonic sensor of distance.
The purpose of this utility model is achieved through the following technical solutions:
Oil transportation of the present utility model, feed channel leakage monitoring infrasonic sensor, comprise central shaft, the axial centre of described central shaft is provided with through hole, the front-end and back-end of described through hole are connected with stopper and Q9 seat respectively, rear portion and the joint outer part of the outer wall of described central shaft are tightly connected, the front portion of the outer wall of described central shaft is provided with front insulating bush and rear insulating bush, described central shaft and front insulating bush are radially provided with the aperture being connected, the outside of described front insulating bush and rear insulating bush is provided with piezoelectric element, described piezoelectric element is provided with electrode, the output line of described piezoelectric element is connected with described Q9 seat with through hole through described aperture, the front portion of described central shaft is provided with overcoat.
The technological scheme being provided by above-mentioned the utility model can be found out, the oil transportation that the utility model embodiment provides, feed channel leakage monitoring infrasonic sensor, because the axial centre of central shaft is provided with through hole, the front-end and back-end of through hole are connected with stopper and Q9 seat respectively, rear portion and the joint outer part of the outer wall of central shaft are tightly connected, the front portion of the outer wall of central shaft is provided with front insulating bush and rear insulating bush, central shaft and front insulating bush are radially provided with the aperture being connected, the outside of front insulating bush and rear insulating bush is provided with piezoelectric element, piezoelectric element is provided with electrode, the output line of piezoelectric element is connected with Q9 seat with through hole through aperture, the front portion of central shaft is provided with overcoat, there is monitoring frequency wide, highly sensitive, signal to noise ratio is good, detect the advantage of distance.
Brief description of the drawings
The oil transportation that Fig. 1 provides for the utility model embodiment, the structural representation that feed channel leakage monitoring is used infrasonic sensor.
Embodiment
To be described in further detail the utility model embodiment below.
Oil transportation of the present utility model, feed channel leakage monitoring infrasonic sensor, its preferably embodiment be:
Comprise central shaft, the axial centre of described central shaft is provided with through hole, the front-end and back-end of described through hole are connected with stopper and Q9 seat respectively, rear portion and the joint outer part of the outer wall of described central shaft are tightly connected, the front portion of the outer wall of described central shaft is provided with front insulating bush and rear insulating bush, described central shaft and front insulating bush are radially provided with the aperture being connected, the outside of described front insulating bush and rear insulating bush is provided with piezoelectric element, described piezoelectric element is provided with electrode, the output line of described piezoelectric element is connected with described Q9 seat with through hole through described aperture, the front portion of described central shaft is provided with overcoat.
The two ends of the through hole at described central shaft center are threaded with described stopper and Q9 seat.
Described joint outer part is flange, between described central shaft and described flange, is provided with O-ring seals, and the rear end of described central shaft is provided with back-up ring.
Described central shaft is made up of metallic material, and described front insulating bush and rear insulating bush are made up of insulating material, and described piezoelectric element is made up of piezoceramic material, and described stopper is made up of metallic material, and described overcoat is made up of acoustic window material.
Oil transportation of the present utility model, feed channel leakage monitoring infrasonic sensor, have advantages of that monitoring frequency is wide, highly sensitive, signal to noise ratio is good, detect distance.
Specific embodiment:
As shown in Figure 1, comprise central shaft 1, front insulating bush 2, piezoelectric element 3, rear insulating bush 4, stopper 5, overcoat 6, electrode 7, output line 8, Q9 seat 9, back-up ring 10.
Described central shaft 1 use metallic material is made.There is a through hole at center, and there is internal thread at the two ends of through hole, is connected respectively with stopper 5 and Q9 seat 9, and radially there is an aperture at the middle part of central shaft 1, is convenient to signaling line 8 and draws.Two spill annular grooves are arranged at the top of central shaft 1, and O-ring seals is installed, and install with joint outer part (flange) 11 sealings.Another spill annular groove of the top of two spill annular grooves of central shaft, installs back-up ring 10.
Described front insulating bush 2 is made up of insulating material, radially has the aperture UNICOM on an aperture and central shaft 1.
Described piezoelectric element 3 is that piezoceramic material is made, and is received infrasonic wave signal and is converted to electrical signal output by it.
Described rear insulating bush 4 is made up of insulating material.
Described stopper 5 is that metallic material is made, and is threaded with central shaft 1.
Described overcoat 6 use acoustic window materials are made, and with the medium contact in pipeline, infrasonic wave is passed to piezoelectric element through it.
Described Q9 seat 9 is connected with piezoelectric element 3 by signaling line 8, and signal is exported.
The utlity model has detection frequency wide, highly sensitive, signal to noise ratio is good, detects the advantage of distance.Be suitable for different tube diameters, different length, uses on the pipeline of different medium.
The structure of the utility model design, is used material to have high pressure resistant, corrosion resistant outstanding advantages, and simple in structure, easy for installation
The utility model can be for oil transportation, dissimilar pipeline and particular job environment of gas, can detect in time the leakage that pipeline occurs, and cost simple in structure is low, is conducive to apply.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (4)
1. an oil transportation, feed channel leakage monitoring infrasonic sensor, it is characterized in that, comprise central shaft, the axial centre of described central shaft is provided with through hole, the front-end and back-end of described through hole are connected with stopper and Q9 seat respectively, rear portion and the joint outer part of the outer wall of described central shaft are tightly connected, the front portion of the outer wall of described central shaft is provided with front insulating bush and rear insulating bush, described central shaft and front insulating bush are radially provided with the aperture being connected, the outside of described front insulating bush and rear insulating bush is provided with piezoelectric element, described piezoelectric element is provided with electrode, the output line of described piezoelectric element is connected with described Q9 seat with through hole through described aperture, the front portion of described central shaft is provided with overcoat.
2. oil transportation according to claim 1, feed channel leakage monitoring infrasonic sensor, is characterized in that, the two ends of the through hole at described central shaft center are threaded with described stopper and Q9 seat.
3. oil transportation according to claim 2, feed channel leakage monitoring infrasonic sensor, is characterized in that, described joint outer part is flange, between described central shaft and described flange, is provided with O-ring seals, and the rear end of described central shaft is provided with back-up ring.
4. according to the oil transportation described in claim 1,2 or 3, feed channel leakage monitoring infrasonic sensor, it is characterized in that, described central shaft is made up of metallic material, described front insulating bush and rear insulating bush are made up of insulating material, described piezoelectric element is made up of piezoceramic material, described stopper is made up of metallic material, and described overcoat is made up of acoustic window material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397327.2U CN203963516U (en) | 2014-07-17 | 2014-07-17 | Oil transportation, feed channel leakage monitoring infrasonic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397327.2U CN203963516U (en) | 2014-07-17 | 2014-07-17 | Oil transportation, feed channel leakage monitoring infrasonic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963516U true CN203963516U (en) | 2014-11-26 |
Family
ID=51924096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420397327.2U Expired - Fee Related CN203963516U (en) | 2014-07-17 | 2014-07-17 | Oil transportation, feed channel leakage monitoring infrasonic sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203963516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100843A (en) * | 2014-07-17 | 2014-10-15 | 北京亿利高科生物工程技术研究所有限公司 | Infrasonic wave sensor for oil and gas pipeline leakage monitoring |
-
2014
- 2014-07-17 CN CN201420397327.2U patent/CN203963516U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100843A (en) * | 2014-07-17 | 2014-10-15 | 北京亿利高科生物工程技术研究所有限公司 | Infrasonic wave sensor for oil and gas pipeline leakage monitoring |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20200717 |