CN201522477U - Hydrogen quantitative detection device based on acoustic velocity measurement - Google Patents
Hydrogen quantitative detection device based on acoustic velocity measurement Download PDFInfo
- Publication number
- CN201522477U CN201522477U CN2009200944031U CN200920094403U CN201522477U CN 201522477 U CN201522477 U CN 201522477U CN 2009200944031 U CN2009200944031 U CN 2009200944031U CN 200920094403 U CN200920094403 U CN 200920094403U CN 201522477 U CN201522477 U CN 201522477U
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- ultrasonic
- fixed
- air chamber
- welded
- hydrogen
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- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 239000001257 hydrogen Substances 0.000 title claims abstract description 26
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000005259 measurement Methods 0.000 title abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 33
- 238000002788 crimping Methods 0.000 claims abstract description 15
- 238000002604 ultrasonography Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- 238000004868 gas analysis Methods 0.000 description 2
- 238000012113 quantitative test Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000030808 detection of mechanical stimulus involved in sensory perception of sound Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- MTZWHHIREPJPTG-UHFFFAOYSA-N phorone Chemical compound CC(C)=CC(=O)C=C(C)C MTZWHHIREPJPTG-UHFFFAOYSA-N 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
A hydrogen quantitative detection device based on acoustic velocity measurement comprises an ultrasonic transmission module which is connected with an ultrasonic receiving module via an acoustic wave conducting tube, and is characterized in that the ultrasonic transmission module comprises a sample gas inlet arranged on an ultrasonic transmitting chamber, an ultrasonic transmitter in the ultrasonic transmitting chamber is welded on a fixed board and is fixed in the ultrasonic transmitting chamber via crimping bolts, the ultrasonic receiving module comprises an ultrasonic receiver, a main sound pick-up, an auxiliary sound pick-up, a flat lens and a convex condensing lens which are all disposed in a gas chamber, a sample outlet is arranged on the gas chamber, the ultrasonic receiver and the main sound pick-up are welded on the fixed board and fixed in the gas chamber via pressure plates, the auxiliary sound pick-up is welded on the fixed board and fixed in the gas chamber via bolts, the flat lens and the convex condensing lens are coaxially arranged at two ends of the gas chamber, the flat lens is fixed on the left side in the gas chamber, and the convex condensing lens is fixed on the right side in the gas chamber. The hydrogen quantitative detection device based on acoustic velocity measurement can realize high-precision detection of hydrogen in mixed gas.
Description
Technical field
The utility model relates to the hydrogen detection technique in the failure gas quantitative test process in the electric power transformer oil, particularly relates to a kind of hydrogen detection by quantitative device based on acoustic velocity measutement.
Background technology
The failure gas quantitative test is one of main method of present diagnosing fault of power transformer in the electric power transformer oil, according to the power industry standard DL/T 722-2000 of the People's Republic of China (PRC) " transformer dissolved gas analysis and judgement guide rule ", hydrogen is one of several gases that need detection.
At present, detection method to hydrogen in the sample gas mainly contains methods such as chromatogram detects, electrochemical sensor harmony wave phase drift detection, chromatographic detection method wherein, the detection resolution height, but system complex, though and chemical sensor detection method structure is comparatively simple, its accuracy of detection and resolution are difficult to satisfy the requirement of " transformer dissolved gas analysis and judgement guide rule ".
Result of study according to people such as J.K.S Wan: when being background gas with the air, the relative drift in the travel-time of light activated sound wave in the mixed gas that contains the different hydrogen volume fraction is directly proportional with the volume fraction of hydrogen (A novel acoustic sensing system foron line hydrogon measurements).Therefore, can adopt the detection of sound wave phase drift detection method realization to hydrogen in the mixed gas, but sound wave phase drift detection method is because existence is subject to interference such as neighbourhood noise, signal amplification circuit phase drift, and the stability of its detection, precision and resolution are subjected to certain restriction.
Because being the acoustic wave propagation velocity variation, above-described sound wave phase drift causes, be that the velocity of propagation of sound wave in the mixed gas that contains the different hydrogen volume fraction is directly proportional with the volume fraction of hydrogen, therefore, according to this basic law and principle, can adopt the ultrasound wave sound source and the receiver and packoff that are not subject to ambient noise interference with suitable sonic propagation distance, by measurement, realize high Precision Detection to hydrogen in the mixed gas to ultrasonic propagation velocity.
Summary of the invention
The purpose of this utility model is: provide a kind of under microprocessor control, based on the hydrogen detection by quantitative device of acoustic velocity measutement, to realize the high Precision Detection to hydrogen in the mixed gas.
Realize that the technical scheme that the purpose of this utility model is taked is: a kind of hydrogen detection by quantitative device based on acoustic velocity measutement, it comprises: a ultrasonic emitting module is connected with a ultrasound wave receiver module by the sound wave conducting tube, it is characterized in that: described ultrasonic emitting module comprises the sample gas air intake opening that is provided with on the ultrasonic emitting chamber, the indoor ultrasonic transmitter of putting of ultrasonic emitting is welded on the fixed head, and it is indoor to be fixed on ultrasonic emitting by the crimping double-screw bolt; Described ultrasound wave receiver module comprises the built-in ultrasonic receiver of air chamber, main acoustic pickup, auxilliary acoustic pickup, flat eyeglass and protruding condenser, air chamber is provided with sample gas gas outlet, ultrasonic receiver and main acoustic pickup are welded on the fixed head, and are fixed in the air chamber by pressing plate; Auxilliary acoustic pickup is welded on the fixed head, and is fixed in the air chamber by double-screw bolt; Flat eyeglass and the coaxial two ends that are relatively arranged on air chamber of protruding light-collecting lens, flat eyeglass is fixed on left side in the air chamber by flat mirror crimping flange, and protruding light-collecting lens is fixed on right side in the air chamber by protruding condenser crimping flange.
The advantage of the hydrogen detection by quantitative device based on acoustic velocity measutement of the present utility model is: owing to adopt the ultrasonic emitting module that is not subject to ambient noise interference not to be tightly connected by a sound wave conducting tube and the ultrasound wave receiver module with suitable sonic propagation distance, by measurement to ultrasonic propagation velocity, guarantee the high reliability and the high precision of measurement data, realized high Precision Detection hydrogen in the mixed gas.
Description of drawings
Fig. 1 is the hydrogen detection by quantitative apparatus structure synoptic diagram based on acoustic velocity measutement.
Among the figure: 1 flat mirror crimping flange, 2 flat eyeglasses, 3 crimping plates, 4 air chambers, 5 sample gas gas outlets, 6 main acoustic pickups, 7 auxilliary acoustic pickups, 8 acoustic pickup crimping double-screw bolts, 9 sound wave conducting tubes, 10 ultrasonic receivers, 11 protruding light-collecting lens, 12 protruding condenser crimping flanges, 13 sample gas air intake openings, 14 ultrasonic transmitters, 15 ultrasonic transmitter crimping double-screw bolts, ultrasonic emitting chambers 16.
Embodiment
The utility model is described in further detail to utilize embodiment shown in the drawings below.
With reference to Fig. 1, the hydrogen detection by quantitative device based on acoustic velocity measutement of the present utility model, it comprises: a ultrasonic emitting module is connected with a ultrasound wave receiver module by sound wave conducting tube 9.Described ultrasonic emitting module comprises ultrasonic emitting chamber 16, on ultrasonic emitting chamber 16, be provided with sample gas air intake opening 13, ultrasonic emitting chamber 16 is built-in with ultrasonic transmitter 14, and ultrasonic transmitter 14 is welded on the fixed head, and is fixed in the ultrasonic emitting chamber 16 by crimping double-screw bolt 15.Described ultrasound wave receiver module comprises the built-in ultrasonic receiver 10 of air chamber 4, main acoustic pickup 6, auxilliary acoustic pickup 7, flat eyeglass 2 and protruding condenser 11, air chamber 4 is provided with sample gas gas outlet 5, ultrasonic receiver 10 and main acoustic pickup 6 are welded on the fixed head, and are fixed in the air chamber 4 by pressing plate 3; Auxilliary acoustic pickup 7 is welded on the fixed head, and is fixed in the air chamber 4 by double-screw bolt 8; Flat eyeglass 2 and the protruding light-collecting lens 11 coaxial two ends that are relatively arranged on air chamber 4, flat eyeglass 2 is fixed on left side in the air chamber 4 by flat mirror crimping flange 1, and protruding light-collecting lens 11 is fixed on right side in the air chamber 4 by protruding condenser crimping flange 12.The ultrasonic emitting chamber 16 of ultrasonic emitting module and the air chamber 4 of ultrasound wave receiver module are made by high-quality stainless steel or brass.Sound wave conducting tube 9 adopts small-bore copper tube or stainless-steel tube.Ultrasonic transmitter 14 and ultrasonic receiver 10 adopt commercially available high-frequency ultrasonic transmitter-receiver.
The related hydrogen detection by quantitative device working method based on acoustic velocity measutement of the utility model is: by the control of microprocessor control to ultrasonic transmitter 14, ultrasonic receiver 10, structure in conjunction with based on the hydrogen detection by quantitative device of acoustic velocity measutement has realized high-accuracy sampling and detection to hydrogen in the mixed gas.
Claims (1)
1. hydrogen detection by quantitative device based on acoustic velocity measutement, it comprises: a ultrasonic emitting module is connected with a ultrasound wave receiver module by the sound wave conducting tube, it is characterized in that: described ultrasonic emitting module comprises the sample gas air intake opening that is provided with on the ultrasonic emitting chamber, the indoor ultrasonic transmitter of putting of ultrasonic emitting is welded on the fixed head, and it is indoor to be fixed on ultrasonic emitting by the crimping double-screw bolt; Described ultrasound wave receiver module comprises the built-in ultrasonic receiver of air chamber, main acoustic pickup, auxilliary acoustic pickup, flat eyeglass and protruding condenser, air chamber is provided with sample gas gas outlet, ultrasonic receiver and main acoustic pickup are welded on the fixed head, and are fixed in the air chamber by pressing plate; Auxilliary acoustic pickup is welded on the fixed head, and is fixed in the air chamber by double-screw bolt; Flat eyeglass and the coaxial two ends that are relatively arranged on air chamber of protruding light-collecting lens, flat eyeglass is fixed on left side in the air chamber by flat mirror crimping flange, and protruding light-collecting lens is fixed on right side in the air chamber by protruding condenser crimping flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200944031U CN201522477U (en) | 2009-09-21 | 2009-09-21 | Hydrogen quantitative detection device based on acoustic velocity measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200944031U CN201522477U (en) | 2009-09-21 | 2009-09-21 | Hydrogen quantitative detection device based on acoustic velocity measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522477U true CN201522477U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200944031U Expired - Fee Related CN201522477U (en) | 2009-09-21 | 2009-09-21 | Hydrogen quantitative detection device based on acoustic velocity measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508054A (en) * | 2018-04-08 | 2018-09-07 | 许昌学院 | A kind of hydrogen sound rotational relaxation detection method |
| CN110596240A (en) * | 2019-08-21 | 2019-12-20 | 许昌学院 | Method and system for detecting hydrogen mixed gas by using decoupling acoustic relaxation spectrum |
-
2009
- 2009-09-21 CN CN2009200944031U patent/CN201522477U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508054A (en) * | 2018-04-08 | 2018-09-07 | 许昌学院 | A kind of hydrogen sound rotational relaxation detection method |
| CN108508054B (en) * | 2018-04-08 | 2020-06-30 | 许昌学院 | Hydrogen acoustic rotation relaxation detection method |
| CN110596240A (en) * | 2019-08-21 | 2019-12-20 | 许昌学院 | Method and system for detecting hydrogen mixed gas by using decoupling acoustic relaxation spectrum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JILIN BEIHUA ELECTRONIC TECHNOLOGY DEVELOPMENT CO. Free format text: FORMER OWNER: JILIN BEIHUA ELECTRONIC TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20130521 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130521 Address after: 132400 Baishan power plant, 274 Huadian Avenue, Jilin, Huadian Patentee after: Baishan Power Plant Patentee after: Jilin Beihua Electronic Technology Development Co., Ltd. Patentee after: State Grid Corporation of China Patentee after: State Grid Xinyuan Hydropower Co., Ltd. Address before: 132400 Baishan power plant, 274 Huadian Avenue, Jilin, Huadian Patentee before: Baishan Power Plant Patentee before: Jilin Beihua Electronic Technology Development Co., Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 132000 Jilin Jilin Huadian Baishan town production complex building Co-patentee after: Jilin Beihua Electronic Technology Development Co., Ltd. Patentee after: Songhua River hydropower generation Co., Ltd. Jilin Baishan power plant Co-patentee after: State Grid Corporation of China Co-patentee after: State Grid Xinyuan Hydropower Co., Ltd. Address before: 132400 Baishan power plant, 274 Huadian Avenue, Jilin, Huadian Co-patentee before: Jilin Beihua Electronic Technology Development Co., Ltd. Patentee before: Baishan Power Plant Co-patentee before: State Grid Corporation of China Co-patentee before: State Grid Xinyuan Hydropower Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20180921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |