CN210197015U - Detection apparatus for pipeline under water - Google Patents
Detection apparatus for pipeline under water Download PDFInfo
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- CN210197015U CN210197015U CN201920000393.4U CN201920000393U CN210197015U CN 210197015 U CN210197015 U CN 210197015U CN 201920000393 U CN201920000393 U CN 201920000393U CN 210197015 U CN210197015 U CN 210197015U
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- phased array
- ultrasonic phased
- power amplifier
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- piezoelectric transducer
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- 238000001514 detection method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 7
- 238000007689 inspection Methods 0.000 claims 3
- 239000008186 active pharmaceutical agent Substances 0.000 claims 1
- 238000013528 artificial neural network Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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Abstract
The utility model relates to a detection apparatus of pipeline under water belongs to pipeline fault detection field. The ultrasonic phased array ultrasonic wave generator comprises an acoustic emission instrument, an ultrasonic phased array, an oscilloscope, a power amplifier and a computer; the output end of the acoustic emission instrument is connected with the input end of the ultrasonic phased array, the output end of the ultrasonic phased array is connected with the input end of the power amplifier, the power amplifier is connected with the oscilloscope, and the output end of the power amplifier is connected with the computer; ultrasonic phased array includes piezoelectric transducer, preamplifier, mixer, low pass filter, multiphase oscillator, and ultrasonic phased array passes through piezoelectric transducer and is connected with the acoustic emission appearance, and ultrasonic phased array passes through multiphase oscillator and is connected with power amplifier, and multiphase oscillator connects three identical piezoelectric transducer of group, preamplifier, mixer, low pass filter of group, the utility model discloses can detect whether pipeline takes place to leak under water based on acoustic signal and beam signal, device simple structure, convenient operation.
Description
Technical Field
The utility model relates to a pipeline leakage detection device under water belongs to pipeline fault detection field.
Background
With the continuous development of science and technology, the material demand of people is higher and higher, the demand of material transportation is increased year by year, and the length of oil and natural gas pipelines is increased year by year. The expansion of underwater pipelines and the development cycle lead to an increase in the number of accidents, irreparable damage to the environment and the economy, and monitoring of early leak detection of underwater pipelines is very important in order to avoid accidents. In the prior art, most detection equipment adopts a pressure-based detection method, and the detection method can only detect the fault after the fault occurs, so that the method has certain limitation.
Disclosure of Invention
The utility model provides a pipeline leakage detection device under water to whether be used for detecting the pipeline under water and take place to leak.
The technical scheme of the utility model is that: an underwater pipeline leakage detection device comprises an acoustic emission instrument 100, an ultrasonic phased array 200, an oscilloscope 300, a power amplifier 400 and a computer 500;
the output end of the acoustic emission instrument 100 is connected with the input end of the ultrasonic phased array 200, the output end of the ultrasonic phased array 200 is connected with the input end of the power amplifier 400, the power amplifier 400 is connected with the oscilloscope 300, and the output end of the power amplifier 400 is connected with the computer 500.
The acoustic emission instrument 100 is DS5-16C in model number; the oscilloscope 300 is model TDS 2022C.
The ultrasonic phased array 200 comprises a piezoelectric transducer 202, a preamplifier 204, a mixer 206, a low-pass filter 208 and a multi-phase oscillator 210, the ultrasonic phased array 200 is connected with the acoustic emission instrument 100 through the piezoelectric transducer 202, and the ultrasonic phased array 200 is connected with a power amplifier 400 through the multi-phase oscillator 210; the multiphase oscillator 210 is connected with three groups of identical piezoelectric transducers 202, preamplifiers 204, mixers 206 and low-pass filters 208, the output end of each piezoelectric transducer 202 in each group is connected with the input end of the preamplifier 204, the output end of the preamplifier 204 is connected with the input end of the mixer 206, and the output end of the mixer 206 is connected with the input end of the low-pass filter 208; each group is connected to a multiphase oscillator 210 via the output of the low pass filter 208.
The piezoelectric transducer 202 is KS-A2425H 13T/R; the preamplifier 204 is model OE 400; the mixer 206 is PE4150 MLAB-Z; the low-pass filter 208 is of type PE 9537; the multiphase oscillator 210 is of the type LTC6902 IMS.
The utility model has the advantages that: whether the underwater pipeline leaks or not can be detected based on the acoustic signals and the wave beam signals, and the device is simple in structure and convenient to operate.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of a middle ultrasonic phased array of the present invention;
the reference numbers in the figures: 100-acoustic emission instrument, 200-ultrasonic phased array, 300-oscilloscope, 400-power amplifier, 500-computer, 202-piezoelectric transducer, 204-preamplifier, 206-mixer, 208-low pass filter, 210-multiphase oscillator.
Detailed Description
Example 1: as shown in fig. 1, an underwater pipeline leakage detection device includes an acoustic emission instrument 100, an ultrasonic phased array 200, an oscilloscope 300, a power amplifier 400, and a computer 500;
the output end of the acoustic emission instrument 100 is connected with the input end of the ultrasonic phased array 200, the output end of the ultrasonic phased array 200 is connected with the input end of the power amplifier 400, the power amplifier 400 is connected with the oscilloscope 300, and the output end of the power amplifier 400 is connected with the computer 500. The acoustic emission instrument 100 is placed on the surface of an underwater pipeline to be detected and emits acoustic signals, the acoustic emission instrument 100 collects the acoustic signals reflected by the underwater pipeline and sends the acoustic signals to the ultrasonic phased array 200, the ultrasonic phased array 200 decomposes the reflected acoustic signals through three channels and synthesizes beam signals by using phase delay, the power amplifier 400 receives and amplifies the beam signals from the ultrasonic phased array 200, the oscilloscope 300 tunes and controls the shape of the beam signals, the power amplifier 400 sends the amplified beam signals to the computer 500, and the computer 500 judges whether the underwater pipeline leaks or not through a pre-established BP neural network detection system according to the received beam signals.
Further, the acoustic emission instrument 100 model number DS5-16C can be set; the oscilloscope 300 is model TDS 2022C.
Further, the ultrasonic phased array 200 may be configured to include a piezoelectric transducer 202, a preamplifier 204, a mixer 206, a low-pass filter 208, and a multi-phase oscillator 210, where the ultrasonic phased array 200 is connected to the acoustic transmitter 100 through the piezoelectric transducer 202, and the ultrasonic phased array 200 is connected to the power amplifier 400 through the multi-phase oscillator 210; the multiphase oscillator 210 is connected with three groups of identical piezoelectric transducers 202, preamplifiers 204, mixers 206 and low-pass filters 208, the output end of each piezoelectric transducer 202 in each group is connected with the input end of the preamplifier 204, the output end of the preamplifier 204 is connected with the input end of the mixer 206, and the output end of the mixer 206 is connected with the input end of the low-pass filter 208; each group is connected to a multiphase oscillator 210 via the output of the low pass filter 208.
Further, the piezoelectric transducer 202 can be provided with a model number KS-A2425H 13T/R; the preamplifier 204 is model OE 400; the mixer 206 is PE4150 MLAB-Z; the low-pass filter 208 is of type PE 9537; the multiphase oscillator 210 is of the type LTC6902 IMS.
The utility model discloses a theory of operation does:
during operation, the device is used to collect the beam signals of the non-leaking underwater pipeline and the leaking underwater pipeline, 20 characteristic parameters represented by two groups of beam signals are extracted through MATLAB software in the computer 500, and a BP neural network detection system is constructed based on the extracted characteristic parameters.
Then, arranging the acoustic emission instrument 100 of the device on the surface of the underwater pipeline to be detected and emitting acoustic signals, forming reflected acoustic signals after the acoustic signals are reflected by the underwater pipeline, and collecting the reflected acoustic signals and transmitting the reflected acoustic signals to the ultrasonic phased array 200 by the acoustic emission instrument 100; the ultrasonic phased array 200 decomposes the reflected sound signals through three channels and synthesizes beam signals by using phase delay, firstly, a piezoelectric transducer 202 in the ultrasonic phased array 200 receives the reflected sound signals collected by the acoustic emission instrument 100 and converts the sound signals into radio frequency signals, then a preamplifier 204 in the ultrasonic phased array 200 amplifies tiny radio frequency signals in the radio frequency signals converted by the piezoelectric transducer 202, then a mixer 206 in the ultrasonic phased array 200 mixes the radio frequency signals amplified by the preamplifier 204, then a low-pass filter 208 in the ultrasonic phased array 200 adjusts the waveform of the radio frequency signals amplified by the mixer 206, and finally, a multi-phase oscillator 210 in the ultrasonic phased array 200 performs high-frequency oscillation on the radio frequency signals adjusted by the low-pass filter 208; the power amplifier 400 receives and amplifies the beam signals from the ultrasonic phased array, the oscilloscope 300 tunes and controls the shape of the beam signals, and the power amplifier 400 sends the amplified beam signals to the computer 500; the computer 500 judges whether the underwater pipeline leaks through a pre-established BP neural network detection system according to the received beam signals.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. An underwater pipeline detection device is characterized in that: the ultrasonic phased array ultrasonic testing system comprises an acoustic emission instrument (100), an ultrasonic phased array (200), an oscilloscope (300), a power amplifier (400) and a computer (500);
the output end of the acoustic emission instrument (100) is connected with the input end of the ultrasonic phased array (200), the output end of the ultrasonic phased array (200) is connected with the input end of the power amplifier (400), the power amplifier (400) is connected with the oscilloscope (300), and the output end of the power amplifier (400) is connected with the computer (500).
2. The underwater pipeline inspection device of claim 1, wherein: the model of the acoustic emission instrument (100) is DS 5-16C; the oscilloscope (300) is TDS 2022C.
3. The underwater pipeline inspection device of claim 1, wherein: the ultrasonic phased array (200) comprises a piezoelectric transducer (202), a preamplifier (204), a mixer (206), a low-pass filter (208) and a multi-phase oscillator (210), the ultrasonic phased array (200) is connected with the acoustic emission instrument (100) through the piezoelectric transducer (202), and the ultrasonic phased array (200) is connected with the power amplifier (400) through the multi-phase oscillator (210); the multiphase oscillator (210) is connected with three groups of identical piezoelectric transducers (202), preamplifiers (204), mixers (206) and low-pass filters (208), the output end of each piezoelectric transducer (202) in each group is connected with the input end of the preamplifier (204), the output end of the preamplifier (204) is connected with the input end of the mixer (206), and the output end of the mixer (206) is connected with the input end of the low-pass filter (208); each group is connected to a multiphase oscillator (210) via the output of a low pass filter (208).
4. The underwater pipeline inspection device of claim 3, wherein: the piezoelectric transducer (202) is KS-A2425H 13T/R; the type of the preamplifier (204) is OE 400; the mixer (206) is PE4150 MLAB-Z; the low-pass filter (208) is of type PE 9537; the multiphase oscillator (210) is LTC6902 IMS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920000393.4U CN210197015U (en) | 2019-01-02 | 2019-01-02 | Detection apparatus for pipeline under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920000393.4U CN210197015U (en) | 2019-01-02 | 2019-01-02 | Detection apparatus for pipeline under water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210197015U true CN210197015U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920000393.4U Expired - Fee Related CN210197015U (en) | 2019-01-02 | 2019-01-02 | Detection apparatus for pipeline under water |
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| Country | Link |
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| CN (1) | CN210197015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113375063A (en) * | 2021-06-07 | 2021-09-10 | 国家石油天然气管网集团有限公司西气东输分公司 | Intelligent monitoring method and system for natural gas pipeline leakage |
| US11187075B2 (en) * | 2019-08-28 | 2021-11-30 | Oceaneering International, Inc. | Method for detecting flooding in flexible tubular pipes under high pressure conditions |
-
2019
- 2019-01-02 CN CN201920000393.4U patent/CN210197015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11187075B2 (en) * | 2019-08-28 | 2021-11-30 | Oceaneering International, Inc. | Method for detecting flooding in flexible tubular pipes under high pressure conditions |
| CN113375063A (en) * | 2021-06-07 | 2021-09-10 | 国家石油天然气管网集团有限公司西气东输分公司 | Intelligent monitoring method and system for natural gas pipeline leakage |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 Termination date: 20210102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |