CN101598666A - Be used for the gas concentration detection system under the explosive explosion environment - Google Patents
Be used for the gas concentration detection system under the explosive explosion environment Download PDFInfo
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- CN101598666A CN101598666A CNA2009100745719A CN200910074571A CN101598666A CN 101598666 A CN101598666 A CN 101598666A CN A2009100745719 A CNA2009100745719 A CN A2009100745719A CN 200910074571 A CN200910074571 A CN 200910074571A CN 101598666 A CN101598666 A CN 101598666A
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Abstract
The present invention relates to the explosive explosion performance test field of explosive, specifically is the gas concentration detection system that is used under the explosive explosion environment.Solve the difficult problem that obtains of gas concentration parameter value under the present explosive explosion environment, comprised some test points, analyser, gas concentration sensing device; Have the straight trough that two ends are covered with protective cover on each test point ground; Gas concentration sensing device contains underframe, the tunable diode laser sending and receiving apparatus that is individually fixed in the underframe two ends and the laser-bounce device of the uniform damping spring in below; stream oriented device is equipped with protective cover outward; establish quartzy optical window on the protective cover opposite face; underframe places in the straight trough; below damping spring and bottom land are fixed; stream oriented device places in the protective cover, and the Laser emission receiving trap is connected with analyser by optical fiber, cable.Purpose rational in infrastructure, as to have realized under the explosive explosion environment, carrying out the gas concentration test, good test effect, the accuracy height is for correct assessment explosive performance provides condition.
Description
Technical field
The present invention relates to explosive (as: detonator, explosive, fireworks and firecrackers, shell, gunpowder etc.) explosion performance test field of explosive, being used to obtain gas concentration, and the time dependent relation curve of gas concentration at diverse location place, explosive explosion scene, specifically is a kind of gas concentration detection system that is used under the explosive explosion environment.
Background technology
Existing gas concentration detection method is a lot, for example: infrared measure, acousto-optic diaphragm pressure method, the photoionization method, electrochemical process etc., and test this special dimension at the explosive explosion property, lethal power for the blast of assessment explosive, so that shorten the lead time, save development cost, obtain the gas (as: oxygen under the explosive explosion environment, CO gas etc.) concentration parameter, and concentration change has its certainty, but owing to influenced by the rugged surroundings of explosive blast: moment reaches 1000 ℃ high temperature, moment reaches the high pressure of 15MP, strong vibrations, and the splash that explodes and cause, also do not have effective gas concentration detection method and means at present, make that the gas concentration parameter value under the explosive explosion environment is difficult to obtain.
Summary of the invention
The present invention based on tunable diode laser spectroscopic methodology TDLAS, provides a kind of gas concentration detection system that is used under the explosive explosion environment in order to solve the difficult problem that obtains of gas concentration parameter value under the present explosive explosion environment.
The present invention adopts following technical scheme to realize: be used for the gas concentration detection system the explosive explosion environment under, comprise and somely involving in the zone along with the explosive fire point being the test point of the same directions of rays arrangement setting of end points, the gas concentration analyzer that is divided into the gas concentration sensing device of each test point and is arranged at far-end in the explosive blast; Offer on the ground of every place test point to arrange the vertical straight trough of direction be set with test point, and the straight trough two ends be covered with outstanding ground respectively and window side over against the cement protective cover that is provided with; Described gas concentration sensing device comprises that the below is evenly equipped with the underframe of high strength damping spring; be individually fixed in the underframe two ends and over against the tunable diode laser sending and receiving apparatus and the laser-bounce device that are provided with; tunable diode laser sending and receiving apparatus and laser-bounce device add the protective cover of high temperature high voltage resistant material outward respectively; and the opposite face of two protective covers is provided with quartzy optical window; underframe places in the straight trough; the high strength damping spring and the straight trough bottom land of underframe below are fixed; the tunable diode laser sending and receiving apparatus; the laser-bounce device places respectively in the cement protective cover, the laser beam input port of tunable diode laser sending and receiving apparatus; the detection signal output terminal passes through optical fiber respectively; the laser beam delivery outlet of cable and gas concentration analyzer; the detection signal collection terminal connects.Wherein, the systematic parameters such as length that spacing between quantity, test point and test point place straight trough are set of test point are determined according to the test actual needs.
When testing, when detonating explosive, output of pilot-gas concentration analyzer and tested gas are (as CO, O
2) laser beam of characteristic absorption crest correspondence, laser beam imports the tunable diode laser sending and receiving apparatus of each test point via optical fiber, the tunable diode laser sending and receiving apparatus of each test point is emitted to the laser-bounce device of its right opposite after to the laser beam adjustment, and via laser-bounce device reflected back tunable diode laser sending and receiving apparatus, be subjected to tested gas absorption in the transmission course of laser beam between tunable diode laser sending and receiving apparatus and laser-bounce device, its spectral signal changes, the laser beam spectral signal conditioning back that the tunable diode laser sending and receiving apparatus will characterize tested gas concentration by cable transmission to gas concentration analyzer, carry out the tested gas concentration that data processing obtains each test point position via gas concentration analyzer, and shown by the display on the gas concentration analyzer, or by the RS232 communication port, network interface is connected gas concentration analyzer with outer computer, carry out follow-up assessment and analysis so that tested gas concentration parameter is transferred to outer computer.Each test point in the test macro of the present invention mainly finish to explosive detonate the back its position locate the detection of situation of change in time of tested gas concentration; The testing result of gas concentration analyzer by each test point can obtain the explosive blast and involve in the zone tested gas concentration with the situation of variable in distance, and then provides effective detection data for estimating the explosive explosion property.
Wherein, described gas concentration sensing device has realized the integral body setting of tunable diode laser sending and receiving apparatus and laser-bounce device by underframe, and below underframe the uniform high strength damping spring that is provided with, this structure has following advantage: 1, the high strength damping spring of the uniform setting in underframe below, reduced " infringement " to tunable diode laser sending and receiving apparatus and laser-bounce device of sharp pounding that the explosive blast causes; 2, because tunable diode laser sending and receiving apparatus and laser-bounce device are whole the setting, in the sharp pounding that the explosive blast causes, light path can not be offset between tunable diode laser sending and receiving apparatus and the laser-bounce device, is in alignment constantly; Reached the purpose of anti-vibration.
In addition, being provided with of test point place cement protective cover, straight trough can protect tunable diode laser sending and receiving apparatus in the described gas concentration sensing device, laser-bounce device and fixedly the underframe of stream oriented device do not suffer the direct impact of explosive explosion wave, and avoid the explosive blast to involve the instantaneous temperature that scope internal cause direct heat radiation (optical radiation) causes and sharply rise the influence of described gas concentration sensing device; Simultaneously, tunable diode laser sending and receiving apparatus and laser-bounce device also add the protective cover of high temperature high voltage resistant material outward, and establishing on the protective cover can be high temperature resistant, the quartzy optical window of high pressure, make low than anticipation of the actual instantaneous temperature of described gas concentration sensing device, reached the purpose of high temperature resistance, high pressure.
Said structure makes and produces under the situation of TRANSIENT HIGH TEMPERATURE, high pressure, HI high impact air-flow in the explosive blast that described gas concentration sensing device can not be damaged, and has guaranteed the operate as normal of test macro of the present invention.
Test macro of the present invention possesses anti-high pressure with above-mentioned, high temperature, the unique texture of vibrations advantage has realized that tunable diode laser spectroscopic methodology TDLAS carries out the application that gas concentration detects under the explosive explosion environment, described tunable diode laser spectroscopic methodology TDLAS is the most advanced at present spectral absorption technology, analyze tested gas concentration by the variation of measuring the spectral signal that the absorption of tested gas molecule on the feature crest cause, can be to multiple gases (as: O2, CO, CO2, HF, HCl, HBr, HI, HCN, CH4, C2H2, NO, NO2, NH3, H2S, H2O) carry out concentration and detect, and possess anti-interference, the response time that is exceedingly fast, high sensitivity, high selectivity, advantages such as measurement range is wide.Therefore, make test macro of the present invention to provide reliable test result for the assessment of explosive explosion property.
The present invention is rational in infrastructure, has realized carrying out the purpose of gas concentration test under the explosive explosion environment, good test effect, the accuracy height for correct assessment explosive performance provides condition, is correctly assessed the explosive lethal power, shorten the explosive lead time, save the explosive development cost.
Description of drawings
Fig. 1 is test philosophy figure of the present invention;
Fig. 2 is the structural representation at test point of the present invention place;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the figure that is provided with of test point in the present invention's actual measurement;
The carbon monoxide gas concentration curve that Fig. 5 obtains for the present invention's actual measurement;
Among the figure: 1-explosive fire point; The 2-test point; The 3-gas concentration sensing device; The 4-gas concentration analyzer; The 5-straight trough; 6-cement protective cover; 7-high strength damping spring; The 8-underframe; 9-tunable diode laser sending and receiving apparatus; 10-laser-bounce device; The 11-protective cover; The quartzy optical window of 12-; 13-optical fiber; The 14-cable; 15-cement protective cover; 16-water pipe precaution head; The 17-cement plate.
Embodiment
Shown in accompanying drawing 1-3, be used for the gas concentration detection system under the explosive explosion environment, comprise and somely in explosive blast involves the zone, arrange the test point 2 of setting, the gas concentration analyzer 4 that is divided into the gas concentration sensing device 3 of each test point 2 and is arranged at far-end along the same directions of rays that with explosive fire point 1 is end points; Offer on the ground of every place test point 2 to arrange the vertical straight trough of direction 5 be set with test point 2, and straight trough 5 two ends be covered with outstanding ground respectively and window side over against the cement protective cover 6,15 that is provided with; Described gas concentration sensing device 3 comprises that the below is evenly equipped with the underframe 8 of high strength damping spring 7; be individually fixed in underframe 8 two ends and over against the tunable diode laser sending and receiving apparatus 9 and the laser-bounce device 10 that are provided with; tunable diode laser sending and receiving apparatus 9 and the laser-bounce device 10 outer protective covers 11 that add the high temperature high voltage resistant material respectively; and the opposite face of two protective covers 11 is provided with quartzy optical window 12; underframe 8 places in the straight trough 5; the high strength damping spring 7 and straight trough 5 bottom lands of underframe 8 belows are fixed; tunable diode laser sending and receiving apparatus 9; laser-bounce device 10 places cement protective cover 6 respectively; in 15, the laser beam input port of tunable diode laser sending and receiving apparatus 9; the detection signal output terminal is respectively by optical fiber 13; the laser beam delivery outlet of cable 14 and gas concentration analyzer 4; the detection signal collection terminal connects.
During concrete enforcement, gas concentration analyzer 4 operated by rotary motion are in 400 meters places in addition of distance explosive fire point; Tunable diode laser sending and receiving apparatus 9, laser-bounce device 10 can also adopt following structure to realize with the fixing of underframe 8: at first fix the side plate that is provided with quartzy optical window 12 at underframe 8 two ends, by the flange seal installation form tunable diode laser sending and receiving apparatus 9 and laser-bounce device 10 are installed with the side plate at underframe 8 two ends respectively then; Described quartzy optical window 12 requirements can be the laser of 200-2500nm by spectral range, and high temperature resistant, the high pressure of energy, in the protection protective cover, in tunable diode laser sending and receiving apparatus 9, the laser-bounce device 10, realize that absorbing the corresponding laser beam of crest with tested gas characteristic normally passes through; Described tunable diode laser sending and receiving apparatus 9 and the laser-bounce device 10 outer protective covers that install additional 11 adopt iron and steel material quality; Described protective cover 11 and 12 requirements of quartzy optical window can be born the pressure that moment reaches 30MP; The direct heat radiation (optical radiation) that causes in order to prevent to explode, quartzy optical window 12 places are provided with the water pipe precaution head 16 vertical with quartzy optical window 12; The each several part of underframe 8 all adopts heat-barrier material protection in addition, and connecting optical fiber 13 and the cable 14 overcoats soft instlated tubular of described gas concentration sensing device 3 with gas concentration analyzer 4, simultaneously buried underground; Described heat-barrier material and 12 requirements of quartzy optical window can be born 1700 ℃ high temperature for a long time.In addition, be stamped the cement plate 17 that upper surface flushes with ground on the straight trough between the two cement protective covers, the rubble that produces falls in the straight trough in order to prevent to explode.
In order to verify the detectability of test macro of the present invention, we are with the test of a certain amount of ammunition blast carrying out carbon monoxide gas concentration, as shown in Figure 4, involve the 3 test point A of place that are provided with along the same directions of rays arrangement that with the ammunition fire point is end points in the zone in the ammunition blast, B, C, test point A is apart from ammunition fire point 20m, test point B is apart from test point A30m, test point C is apart from test point B30m, after the ammunition blast, obtain test point A via test macro of the present invention, B, the time dependent carbon monoxide gas concentration curve in C3 place, as shown in Figure 5, the carbon monoxide gas concentration that produces in the ammunition blast process is at the variation relation of different test points along with the time as can be seen, and in the carbon monoxide gas concentration situation of synchronization apart from the different distance place of fire point.The result shows, the application of tunable diode laser spectroscopic methodology TDLAS in test macro of the present invention is very successful, test macro of the present invention can be applied to and carry out gas concentration in all kinds of relevant explosion environments and detect, and provides available, reliable data for the assessment of explosive explosion property.
Claims (2)
1, a kind of gas concentration detection system that is used under the explosive explosion environment is characterized in that: comprise some in explosive blast involves the zone along with explosive fire point (1) be the test point (2) of the same directions of rays arrangement setting of end points, the gas concentration analyzer (4) that is divided into the gas concentration sensing device (3) of each test point (2) and is arranged at far-end; Offer on the ground of every place test point (2) to arrange the vertical straight trough of direction (5) be set with test point (2), and straight trough (5) two ends be covered with outstanding ground respectively and window side over against the cement protective cover (6,15) that is provided with; Described gas concentration sensing device (3) comprises that the below is evenly equipped with the underframe (8) of high strength damping spring (7); be individually fixed in underframe (8) two ends and over against the tunable diode laser sending and receiving apparatus (9) and the laser-bounce device (10) that are provided with; the outer protective cover (11) that adds the high temperature high voltage resistant material respectively of tunable diode laser sending and receiving apparatus (9) and laser-bounce device (10); and the opposite face of two protective covers (11) is provided with quartzy optical window (12); underframe (8) places in the straight trough (5); the high strength damping spring (7) of underframe (8) below is fixed with straight trough (5) bottom land; tunable diode laser sending and receiving apparatus (9); laser-bounce device (10) places cement protective cover (6 respectively; 15) in, the laser beam input port of tunable diode laser sending and receiving apparatus (9); the detection signal output terminal is respectively by optical fiber (13); the laser beam delivery outlet of cable (14) and gas concentration analyzer (4); the detection signal collection terminal connects.
2, the gas concentration detection system that is used under the explosive explosion environment according to claim 1 is characterized in that: quartzy optical window (12) locates to be provided with the water pipe precaution head (16) vertical with quartzy optical window (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100745719A CN101598666B (en) | 2009-06-26 | 2009-06-26 | Gas concentration detection system capable of working under explosion environment of explosive |
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| CN2009100745719A CN101598666B (en) | 2009-06-26 | 2009-06-26 | Gas concentration detection system capable of working under explosion environment of explosive |
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| CN101598666A true CN101598666A (en) | 2009-12-09 |
| CN101598666B CN101598666B (en) | 2010-09-08 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949833A (en) * | 2010-09-30 | 2011-01-19 | 中北大学 | Method for processing concentration signal of infrared gas sensor |
| CN103279680A (en) * | 2013-06-08 | 2013-09-04 | 南京理工大学 | Method and system for assessing human body trauma caused by air blasts |
| TWI464386B (en) * | 2013-04-19 | 2014-12-11 | Radiant Innovation Inc | Gas concentration detection device with function of shockproof |
| CN105444970A (en) * | 2015-11-12 | 2016-03-30 | 新奥科技发展有限公司 | Gas detection system |
| CN109031246A (en) * | 2018-08-21 | 2018-12-18 | 浙江国自机器人技术有限公司 | Laser radar explosion-protection equipment |
| CN109085319A (en) * | 2018-08-28 | 2018-12-25 | 西安近代化学研究所 | A kind of impact breakdown type temperature and pressure explosive impact decomposition dispersion effect evaluation method |
| CN112304558A (en) * | 2019-07-29 | 2021-02-02 | 中国石油天然气股份有限公司 | Test system for testing natural gas flow field |
| CN112304559A (en) * | 2019-07-29 | 2021-02-02 | 中国石油天然气股份有限公司 | Natural gas flow field test system |
| CN112304560A (en) * | 2019-07-29 | 2021-02-02 | 中国石油天然气股份有限公司 | Test cabin for testing natural gas flow field |
| CN112345492A (en) * | 2020-11-25 | 2021-02-09 | 东北石油大学 | Probe device for multi-element thermal fluid in-situ laser detection |
| CN112763684A (en) * | 2019-11-04 | 2021-05-07 | 中国石油天然气股份有限公司 | Mixing device for wet natural gas detection and wet natural gas detection system |
| CN112763683A (en) * | 2019-11-04 | 2021-05-07 | 中国石油天然气股份有限公司 | Mixing device for wet natural gas detection and wet natural gas detection system |
| WO2022193565A1 (en) * | 2021-03-18 | 2022-09-22 | 中钢集团马鞍山矿山研究总院股份有限公司 | Full-section monitoring method for poisonous and harmful gas in blasting fume in underground space blasting |
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2009
- 2009-06-26 CN CN2009100745719A patent/CN101598666B/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949833A (en) * | 2010-09-30 | 2011-01-19 | 中北大学 | Method for processing concentration signal of infrared gas sensor |
| CN101949833B (en) * | 2010-09-30 | 2012-02-15 | 中北大学 | Method for processing concentration signal of infrared gas sensor |
| TWI464386B (en) * | 2013-04-19 | 2014-12-11 | Radiant Innovation Inc | Gas concentration detection device with function of shockproof |
| CN103279680A (en) * | 2013-06-08 | 2013-09-04 | 南京理工大学 | Method and system for assessing human body trauma caused by air blasts |
| CN105444970A (en) * | 2015-11-12 | 2016-03-30 | 新奥科技发展有限公司 | Gas detection system |
| CN109031246A (en) * | 2018-08-21 | 2018-12-18 | 浙江国自机器人技术有限公司 | Laser radar explosion-protection equipment |
| CN109085319A (en) * | 2018-08-28 | 2018-12-25 | 西安近代化学研究所 | A kind of impact breakdown type temperature and pressure explosive impact decomposition dispersion effect evaluation method |
| CN112304558A (en) * | 2019-07-29 | 2021-02-02 | 中国石油天然气股份有限公司 | Test system for testing natural gas flow field |
| CN112304559A (en) * | 2019-07-29 | 2021-02-02 | 中国石油天然气股份有限公司 | Natural gas flow field test system |
| CN112304560A (en) * | 2019-07-29 | 2021-02-02 | 中国石油天然气股份有限公司 | Test cabin for testing natural gas flow field |
| CN112763684A (en) * | 2019-11-04 | 2021-05-07 | 中国石油天然气股份有限公司 | Mixing device for wet natural gas detection and wet natural gas detection system |
| CN112763683A (en) * | 2019-11-04 | 2021-05-07 | 中国石油天然气股份有限公司 | Mixing device for wet natural gas detection and wet natural gas detection system |
| CN112763683B (en) * | 2019-11-04 | 2023-09-26 | 中国石油天然气股份有限公司 | Mixing device for wet natural gas detection and wet natural gas detection system |
| CN112345492A (en) * | 2020-11-25 | 2021-02-09 | 东北石油大学 | Probe device for multi-element thermal fluid in-situ laser detection |
| WO2022193565A1 (en) * | 2021-03-18 | 2022-09-22 | 中钢集团马鞍山矿山研究总院股份有限公司 | Full-section monitoring method for poisonous and harmful gas in blasting fume in underground space blasting |
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| CN101598666B (en) | 2010-09-08 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangdong Blasting Engineering Co., Ltd. Assignor: Zhongbei Univ Contract record no.: 2011440000308 Denomination of invention: Gas concentration detection system capable of working under explosion environment of explosive Granted publication date: 20100908 License type: Exclusive License Open date: 20091209 Record date: 20110407 |
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Assignee: Guangdong Blasting Engineering Co., Ltd. Assignor: Zhongbei Univ Contract record no.: 2011440000308 Date of cancellation: 20121023 |
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