CN204042457U - Two-channel natural gas pipeline ball valve inner leakage detection device and containing box thereof - Google Patents
Two-channel natural gas pipeline ball valve inner leakage detection device and containing box thereof Download PDFInfo
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- CN204042457U CN204042457U CN201420481710.6U CN201420481710U CN204042457U CN 204042457 U CN204042457 U CN 204042457U CN 201420481710 U CN201420481710 U CN 201420481710U CN 204042457 U CN204042457 U CN 204042457U
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- signal amplifier
- ball valve
- natural gas
- gas line
- line ball
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000003345 natural gas Substances 0.000 title claims abstract description 46
- 238000001514 detection method Methods 0.000 title abstract description 13
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 238000011144 upstream manufacturing Methods 0.000 description 7
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a natural gas line detects technical field, in particular to leak detection device in binary channels natural gas line ball valve, include: the device comprises a power supply, a first acoustic emission sensor, a second acoustic emission sensor, a signal amplifier, a boosting module, an analog-to-digital conversion module and a data acquisition module. The first acoustic emission sensor and the second acoustic emission sensor are connected with the signal amplifier; the signal amplifier is connected with the data acquisition module through the resistance adjusting module; the data acquisition module is connected with the analysis equipment; the power supply is connected with the signal amplifier through the boosting module. The utility model also provides a leak detection device's holding box in binary channels natural gas line ball valve. The utility model provides a leak detection device in binary channels natural gas line ball valve can survey the noise signal that the ball valve produced simultaneously in the upper and lower stream of natural gas line ball valve, for analytical equipment provides the detection signal, leaks in whether the analytical equipment analysis natural gas line ball valve of being convenient for takes place.
Description
Technical field
The utility model relates to natural gas line detection technique field, particularly a kind of Twin channel natural gas line ball valve inner hexagon device and hold case.
Background technique
Valve is the important component part of natural gas line, and valve mostly is heavy caliber, and usually works under high-pressure state, therefore needs good sealing, can not there is interior leakage.Once the safety that serious threat natural gas line runs by interior leakage, therefore need that location and relative quantity is leaked accurately to it and detect.Conventional valves leakage detecting method mainly comprises: manual inspection, voltage drop detection etc., above Comparison between detecting methods is simple, fail to judge in carrying out mainly through the sense of hearing and eye-observation disconnected, but Subjective Factors is high, detection time is long, can not quantitative analysis, therefore cannot meet existing valves leakage rate and quantize testing requirement.
Model utility content
Technical problem to be solved in the utility model be to provide a kind of can to the upstream and downstream synchronizing detection of natural gas line ball valve, for analytical equipment provides detected signal, be convenient to analytical equipment and analyze the Twin channel natural gas line ball valve inner hexagon device whether natural gas line ball valve interior leakage occurs.
For solving the problems of the technologies described above, the utility model provides a kind of Twin channel natural gas line ball valve inner hexagon device, comprising: the first power supply, first sound emission sensor, second sound emission sensor, the first signal amplifier, secondary signal amplifier, boost module, the first resistance adjustment module, the second resistance adjustment module and data acquisition module.Described first sound emission sensor is connected with described first signal amplifier; Described first signal amplifier is connected with described data acquisition module by described first resistance adjustment module; Described second sound emission sensor is connected with described secondary signal amplifier; Described secondary signal amplifier is connected with described data acquisition module by described second resistance adjustment module.Described data acquisition module is connected with outside analytical equipment; Described first power supply is connected with described first signal amplifier and described secondary signal amplifier respectively by described boost module.
Further, also comprise: second source; Described second source is connected with described first signal amplifier and described secondary signal amplifier respectively, for described first signal amplifier and described secondary signal amplifier are powered.
Further, described first resistance adjustment module and described second resistance adjustment module are slide rheostat.
Further, the input end of described slide rheostat is 1K ohm, output terminal is 250 ohm.
Further, described first sound emission sensor and described second sound emission sensor are resonant mode calibrate AE sensor.
Further, the input of described first signal amplifier and described secondary signal amplifier, output interface are the bnc interface of band shielding.
Further, the output interface of described data acquisition module is USB interface.
What the utility model additionally provided a kind of Twin channel natural gas line ball valve inner hexagon device holds case, comprising: casing, ABS armored cassette and EVA liner.Described EVA liner is placed in described casing; Be lining with in described EVA and be provided with armored cassette standing groove, Couplant standing groove, magnetic holding device standing groove and calibrate AE sensor standing groove; Described ABS armored cassette is placed in described armored cassette standing groove; Second source, the first signal amplifier, secondary signal amplifier, boost module, the first resistance adjustment module, the second resistance adjustment module and data acquisition module are arranged in described ABS armored cassette.
The Twin channel natural gas line ball valve inner hexagon device that the utility model provides is provided with two calibrate AE sensors, can simultaneously in the noise signal that the upstream and downstream detection ball valve of natural gas line ball valve produces, for analytical equipment provides detected signal, be convenient to analytical equipment analysis natural gas line ball valve and whether interior leakage occurs.Also be provided with the first resistance adjustment module and the second resistance adjustment module in the Twin channel natural gas line ball valve inner hexagon device that the utility model provides, the effect of current limliting can be played in the transmittance process of signal, prevent that electric current is excessive burns out equipment.The Twin channel natural gas line ball valve inner hexagon device that the utility model provides hold case, have employed ABS armored cassette and EVA liner, there is higher working life, can prevent signal amplifier, boost module and data acquisition module explode damage.
Accompanying drawing explanation
The Twin channel natural gas line ball valve inner hexagon apparatus structure schematic diagram that Fig. 1 provides for the utility model embodiment;
The Twin channel natural gas line ball valve inner hexagon device that Fig. 2 provides for the utility model embodiment and hold case plan view;
The Twin channel natural gas line ball valve inner hexagon device that Fig. 3 provides for the utility model embodiment hold box structure schematic diagram.
Embodiment
See Fig. 1 and Fig. 2, the utility model embodiment provides a kind of Twin channel natural gas line ball valve inner hexagon device, comprising: the first power supply, first sound emission sensor, second sound emission sensor, the first signal amplifier 1, secondary signal amplifier 10, boost module 4, first resistance adjustment module 3, second resistance adjustment module 9 and data acquisition module 8.
See Fig. 1, first sound emission sensor is connected with the first signal amplifier 1, and first sound emission sensor leaks the first noise signal of generation for gathering in natural gas line ball valve, and the first noise signal carries out amplification process through the first signal amplifier 1.First signal amplifier 1 is connected with data acquisition module 8 by the first resistance adjustment module 3, and the first noise signal after the first signal amplifier 1 amplifies is passed to data acquisition module 8 by the first resistance adjustment module 3 and stores.Second sound emission sensor is connected with secondary signal amplifier 10, and second sound emission sensor leaks the second noise signal of generation for gathering in natural gas line ball valve, and the second noise signal carries out amplification process through secondary signal amplifier 10.Secondary signal amplifier 10 is connected with data acquisition module 8 by the second resistance adjustment module 9, and the second noise signal after secondary signal amplifier 10 amplifies is passed to data acquisition module 8 by the second resistance adjustment module 9 and stores.Data acquisition module 8 is connected with outside analytical equipment, the noise signal (comprising the first noise signal and the second noise signal) stored is sent to analytical equipment and carries out interior leakage analysis.First power supply (the present embodiment adopt notebook with battery as the first power supply) be connected respectively with the first signal amplifier 1 and secondary signal amplifier 10 by boost module 4; Boost module 4 provides stable voltage (providing 28V direct current) for signal amplifier.
See Fig. 1, for ensureing that the first signal amplifier 1 and secondary signal amplifier 10 are stablized, worked reliably, the Twin channel natural gas line ball valve inner hexagon device that the utility model embodiment provides also comprises second source 11.Second source 11 is connected with the first signal amplifier 1 and secondary signal amplifier 10 respectively, be that the first signal amplifier 1 and secondary signal amplifier 10 power (providing 28V direct current), in actual applications, when the first electric quantity of power supply is not enough or when breaking down, can open second source 11 and replace the first power work.
In the Twin channel natural gas line ball valve inner hexagon device that the utility model embodiment provides, the first resistance adjustment module 3 and the second resistance adjustment module 9 all adopt slide rheostat, and the input end of slide rheostat is 1K ohm, output terminal is 250 ohm; First resistance adjustment module 3 and the second resistance adjustment module 9 realize the protection to loop by the size changing resistance.First sound emission sensor and second sound emission sensor are resonant mode calibrate AE sensor, and frequency of okperation is 20KHZ ~ 220KHz, and CF center frequency is 150KHz.The input of the first signal amplifier 1 and secondary signal amplifier 10, output interface are the bnc interface of band shielding, and gain is 40dB ± 1dB, and bandwidth is 20KHz ~ 2.5MHz, and power supply voltage is 28V direct current.The output interface of data acquisition module 8 is USB interface, and maximum sample frequency is 1MHz.
The detecting method of the Twin channel natural gas line ball valve inner hexagon device that the utility model embodiment provides is as follows: step 10, first sound emission sensor and second sound emission sensor are positioned over testing environment noise in air, demarcates first sound emission sensor and the initialization of second sound emission sensor; When the root-mean-square value of the noise signal that first sound emission sensor and second sound emission sensor are uploaded is all 0, demarcates and terminate.Step 20, first sound emission sensor is coupled with the pipeline of ball valve upstream (being coupled by Couplant), fixing (being fixed by magnetic clamp); Second sound emission sensor is coupled with the pipeline in ball valve downstream (being coupled by Couplant), fixes (being fixed by magnetic clamp).Step 30, the first noise signal utilizing analytical equipment acquisition first sound emission sensor to detect, and obtain the second noise signal of second sound emission sensor detection; If the root-mean-square value of the second noise signal is greater than the root-mean-square value of the first noise signal, then judge that interior leakage has occurred ball valve.If site environment noise is serious, can carry out four-point method detection, the basic principle that four-point method detects is identical with said method.Select two points of ball valve upstream: A point and B point (A point is arranged on the upstream of B point), select two points in ball valve downstream: C point and D point (C point is arranged on the upstream of D point).Twin channel natural gas line ball valve inner hexagon device is utilized to detect the noise signal of A, B, C, D 4, if the noise intensity of C point (unit is decibel) is higher than the noise intensity (unit is decibel) of A point and B point, illustrate that ball valve exists to leak, if the noise intensity of D point (unit is decibel) is higher than the noise intensity (unit is decibel) of C point, illustrating that sound transmits from other point in downstream, there is not leakage in ball valve.
See Fig. 2 and Fig. 3, what the utility model embodiment still provides a kind of Twin channel natural gas line ball valve inner hexagon device holds case, comprising: casing 2, ABS armored cassette 12, EVA liner 7 and magnetic holding device 5.EVA liner 7 is placed in casing 2.EVA liner 7 is provided with armored cassette standing groove, Couplant standing groove 6, magnetic holding device 5 standing groove and calibrate AE sensor standing groove.ABS armored cassette 12 is placed in armored cassette standing groove; Couplant standing groove 6 is for placing Couplant; Magnetic holding device 5 standing groove is for placing magnetic holding device 5; Calibrate AE sensor standing groove is for placing first sound emission sensor and second sound emission sensor.
The Twin channel natural gas line ball valve inner hexagon device that the utility model embodiment provides is provided with two calibrate AE sensors, can simultaneously in the noise signal that the upstream and downstream detection ball valve of natural gas line ball valve produces, for analytical equipment provides detected signal, be convenient to analytical equipment analysis natural gas line ball valve and whether interior leakage occurs.Also be provided with resistance adjustment module in the Twin channel natural gas line ball valve inner hexagon device that the utility model embodiment provides, the effect of current limliting can be played in the transmittance process of signal, prevent that electric current is excessive burns out equipment.The Twin channel natural gas line ball valve inner hexagon device that the utility model embodiment provides hold case, have employed ABS armored cassette and EVA liner, there is higher working life, can prevent signal amplifier, boost module and data acquisition module explode damage.
It should be noted last that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to example, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (8)
1. a Twin channel natural gas line ball valve inner hexagon device, it is characterized in that, comprising: the first power supply, first sound emission sensor, second sound emission sensor, the first signal amplifier, secondary signal amplifier, boost module, the first resistance adjustment module, the second resistance adjustment module and data acquisition module;
Described first sound emission sensor is connected with described first signal amplifier;
Described first signal amplifier is connected with described data acquisition module by described first resistance adjustment module;
Described second sound emission sensor is connected with described secondary signal amplifier;
Described secondary signal amplifier is connected with described data acquisition module by described second resistance adjustment module;
Described data acquisition module is connected with outside analytical equipment;
Described first power supply is connected with described first signal amplifier and described secondary signal amplifier respectively by described boost module.
2. Twin channel natural gas line ball valve inner hexagon device according to claim 1, is characterized in that, also comprise: second source;
Described second source is connected with described first signal amplifier and described secondary signal amplifier respectively, for described first signal amplifier and described secondary signal amplifier are powered.
3. Twin channel natural gas line ball valve inner hexagon device according to claim 1, is characterized in that, described first resistance adjustment module and described second resistance adjustment module are slide rheostat.
4. Twin channel natural gas line ball valve inner hexagon device according to claim 3, is characterized in that, the input end of described slide rheostat is 1K ohm, output terminal is 250 ohm.
5. the Twin channel natural gas line ball valve inner hexagon device according to any one of claim 1-4, it is characterized in that, described first sound emission sensor and described second sound emission sensor are resonant mode calibrate AE sensor.
6. the Twin channel natural gas line ball valve inner hexagon device according to any one of claim 1-4, is characterized in that, the input of described first signal amplifier and described secondary signal amplifier, output interface are the bnc interface of band shielding.
7. the Twin channel natural gas line ball valve inner hexagon device according to any one of claim 1-4, it is characterized in that, the output interface of described data acquisition module is USB interface.
8. Twin channel natural gas line ball valve inner hexagon device hold a case, it is characterized in that, comprising: casing, ABS armored cassette and EVA liner;
Described EVA liner is placed in described casing;
Be lining with in described EVA and be provided with armored cassette standing groove, Couplant standing groove, magnetic holding device standing groove and calibrate AE sensor standing groove;
Described ABS armored cassette is placed in described armored cassette standing groove; Second source, the first signal amplifier, secondary signal amplifier, boost module, the first resistance adjustment module, the second resistance adjustment module and data acquisition module are arranged in described ABS armored cassette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481710.6U CN204042457U (en) | 2014-08-25 | 2014-08-25 | Two-channel natural gas pipeline ball valve inner leakage detection device and containing box thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420481710.6U CN204042457U (en) | 2014-08-25 | 2014-08-25 | Two-channel natural gas pipeline ball valve inner leakage detection device and containing box thereof |
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| Publication Number | Publication Date |
|---|---|
| CN204042457U true CN204042457U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420481710.6U Expired - Fee Related CN204042457U (en) | 2014-08-25 | 2014-08-25 | Two-channel natural gas pipeline ball valve inner leakage detection device and containing box thereof |
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| CN (1) | CN204042457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180168A (en) * | 2014-08-25 | 2014-12-03 | 中国石油天然气股份有限公司 | Device and method for detecting internal leakage of double-channel natural gas pipeline ball valve |
| EP4219993A1 (en) * | 2022-01-28 | 2023-08-02 | Senseven GmbH | Method for generating a diagnosis of a component by sound emission |
-
2014
- 2014-08-25 CN CN201420481710.6U patent/CN204042457U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180168A (en) * | 2014-08-25 | 2014-12-03 | 中国石油天然气股份有限公司 | Device and method for detecting internal leakage of double-channel natural gas pipeline ball valve |
| EP4219993A1 (en) * | 2022-01-28 | 2023-08-02 | Senseven GmbH | Method for generating a diagnosis of a component by sound emission |
| WO2023144040A1 (en) * | 2022-01-28 | 2023-08-03 | Senseven Gmbh | Method for diagnosing a component by means of acoustic emission |
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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: 20141224 |