CN102707017A - Test system for detecting integrity and reliability of gas monitoring system - Google Patents
Test system for detecting integrity and reliability of gas monitoring system Download PDFInfo
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- CN102707017A CN102707017A CN2012101862069A CN201210186206A CN102707017A CN 102707017 A CN102707017 A CN 102707017A CN 2012101862069 A CN2012101862069 A CN 2012101862069A CN 201210186206 A CN201210186206 A CN 201210186206A CN 102707017 A CN102707017 A CN 102707017A
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Abstract
The invention relates to the field of performance detection of a gas monitoring system, in particular to a test system for detecting integrity and reliability of the gas monitoring system. By the test system, the problems that the test and calibration of the integrity of the gas monitoring system still stay at a laboratory implementation phase, a complete test system is not formed, and accurate test control and calibration for the gas monitoring system cannot be performed are solved. The test system for detecting the integrity and the reliability of the gas monitoring system consists of a control unit, a gas distribution unit and a detection unit. The test system is reasonable in structure and takes a central control computer as a control core; gas distribution, detection and data processing are implemented under the accurate control of the central control computer when the gas monitoring system is tested; and the gas distribution is performed accurately, the detection environment is stable, the data processing is performed quickly, and the test result is guaranteed, so that the test system facilitate the determination of the integrity and the application reliability of the gas monitoring system.
Description
Technical field
The present invention relates to the Performance Detection field of gas monitoring system, specifically is a kind of test macro that is used for detected gas monitoring system integrality, reliability.
Background technology
Gas monitoring system is made up of gas sensor and peripheral circuit, and its serviceability is determined by gas sensor and peripheral circuit jointly; And the emphasis of at present gas monitoring system being tested and demarcating focuses on gas sensor wherein more; For example: the mapping relations of gas concentration in gas sensor original analog and the given range under the stable state effect of detection gas sensor and sensory characteristic, the demarcation different temperatures, or the like; Detection about gas sensor stable state effect and sensory characteristic; Directly gas sensor to be measured is put into sealed gas chamber; Through adjustment to the sealed gas chamber charge flow rate; Change the gas concentration in the sealed gas chamber, the output of monitoring gas sensor in real time changes, and obtains its stable state effect and sensory characteristic; Demarcation about gas concentration mapping relations in gas sensor original analog under the different temperatures and the given range; Common way is exactly on the base plate of sealed gas chamber, heating plate to be set; Heat through power supply, progressively change temperature and record in the sealed gas chamber, the output of writing down gas sensor simultaneously changes; Accomplish and demarcate; And the baseplate temp parameter characterization that the temperature parameter in the sealed gas chamber is measured with thermopair, not the environment temperature in the real sealed gas chamber of living in of gas sensor, the error that calibration result exists is bigger.And the detection that is based on the basic device stage for the test and the demarcation of gas sensor, its testing result can't be represented the whole system operation performance for gas monitoring system.
And, still rest on the laboratory implementation stage at present to gas monitoring system whole test and demarcation, take to carry out with gas sensor test, the similar technical scheme of demarcation; Complex operation; Detection efficiency is low, and has the calibrated error problem equally, and main is not form complete test macro; Can't test control and demarcation accurately to gas monitoring system, in order to confirm the integrality and the reliability of gas monitoring system; Also can't implement property testing and demarcation in batches to gas monitoring system; So just caused the monitoring accuracy of the gas monitoring system that has come into operation in the real life production to guarantee, caused having left over potential safety hazard in the gas monitoring system use.
Summary of the invention
Whole test and demarcation still rest on the laboratory implementation stage for gas monitoring system at present in order to solve in the present invention; Also do not form complete test macro; Can't test the problem of control and demarcation to gas monitoring system accurately, a kind of test macro that is used for detected gas monitoring system integrality, reliability is provided.
The present invention adopts following technical scheme to realize: be used for the test macro of detected gas monitoring system integrality, reliability, be made up of control module, distribution unit, detecting unit;
Control module comprises middle control computer, the high-precision multi-path data acquisition unit and the mass spectrometer that are connected with middle control computer;
The distribution unit comprises that mixed gas tank, some storages basis gas (promptly are different from single gas of planting of mixed gas; High pressure tank for example: oxygen, nitrogen, hydrogen, carbon monoxide, carbon dioxide etc.); Each high pressure tank is connected with mixed gas tank through corresponding air guide pipeline respectively; Risen by the high pressure tank side on each air guide pipeline and be disposed with decompressor, electronic flow-meter, controllable electromagnetic valve, mix gas tank and be provided with escape pipe I and escape pipe II, the escape pipe I is connected with mass spectrometric air source inlet by the road; And escape pipe I and escape pipe II are provided with controllable electromagnetic valve, and electronic flow-meter, controllable electromagnetic valve are connected with middle control computer;
Detecting unit is included as gas monitoring system to be measured provides the detection air chamber of test environment, the type that adjusts the temperature electronically chamber; Detecting air chamber places in the type chamber of adjusting the temperature electronically; Detect in the air chamber and be provided with the connection terminal that is connected with high-precision multi-path data acquisition unit input end; Detect air chamber and be provided with draft tube and gas outlet, gas outlet is provided with controllable electromagnetic valve, and draft tube is connected with the escape pipe II of mixed gas tank by the road; The type that adjusts the temperature electronically chamber, controllable electromagnetic valve are connected with middle control computer; Said detection air chamber is a closed type test cabinet, and its cabinet door and cabinet wall are made up of graphite heat conducting thick film and explosion-proof steel mesh.
The said type chamber of adjusting the temperature electronically adopts the high low temperature of CTPS701B to change moisture-heat test-box fast, and this chamber is a known products.
In addition; The distribution unit also is provided with the ultrasonic humidifier that is connected with middle control computer, and high pressure tank is connected with ultrasonic humidifier with air guide pipeline between the mixed gas tank by the road, is to satisfy the test needs; Ultrasonic humidifier is adjusted gas humidity under middle control computer control.
Use test macro according to the invention gas monitoring system is tested and timing signal, its test process roughly was divided into for three steps: distribution step, detection step, data processing step;
The distribution step, under the Control Software support, testing crew is set the distribution parameter through middle control computer; Control the control voltage of corresponding controllable electromagnetic valve according to the distribution parameters remote by middle control computer; Open controllable electromagnetic valve, make the interior gases at high pressure of corresponding high pressure tank after the decompressor decompression, get into through the air guide pipeline and mix distribution in the gas tank; By electronic flow-meter the delivery rate of gas is monitored in real time; And feeding back to middle control computer, middle control computer is adjusted the control voltage of controllable electromagnetic valve according to distribution parameter and flow feedback signal automatically, reaches the purpose of accurate pilot-gas delivery rate; And then proportioning goes out the mixed gas of ideal gas concentration in mixing gas tank, accomplishes dynamically accurately distribution.
Detect step, gas monitoring system to be measured or gas monitoring system array to be measured are placed in the detection air chamber, the output terminal connection terminal interior with detecting air chamber is connected (being that gas monitoring system to be measured is connected with the high-precision multi-path data acquisition unit); Close and detect air chamber cabinet door; Vacuumize detecting air chamber, mix the control voltage of controllable electromagnetic valve on gas tank escape pipe I and the escape pipe II then through middle control computer control, at first open the controllable electromagnetic valve on the escape pipe I; Make the mixed gas fraction that mixes in the gas tank after the escape pipe I gets into mass spectrometer; Close the controllable electromagnetic valve on the escape pipe I, open the controllable electromagnetic valve on the escape pipe II, the mixed gas that mixes in the gas tank is got into via the escape pipe II detect air chamber; By mass spectrometer mixed gas is analyzed; Obtain the standard source data, by the gas monitoring system to be measured that detects in the air chamber mixed gas is carried out static test, the high-precision multi-path data acquisition unit is gathered the dynamic response data of gas monitoring system to be measured in real time; In test process, middle control computer needs according to test, and temperature, humidity and slope thereof and Wen Xun that the high low temperature of CTPS701B changes moisture-heat test-box fast are set arbitrarily.
Data processing step; Middle control computer is gathered in real time, stores, is shown: the standard source data that parameter, mass spectrometers such as the temperature of the dynamic response signal of gas monitoring system to be measured or gas monitoring system array to be measured, gas monitoring system to be measured or gas monitoring system array working environment to be measured and humidity obtain; And on this basis; The real-time depiction correlation curve; The target component of test such as calculating concentration, sensitivity, response time, release time, resolution, specifically how calculating is the known technology general knowledge in gas-monitoring field.
Be directed against obtaining of gas monitoring system to be measured or gas monitoring system array operating ambient temperature parameter to be measured in addition; Compared with prior art; The used detection air chamber of the present invention has been abandoned materials such as traditional steel or glass; Adopt graphite heat conducting thick film and explosion-proof steel mesh to process, used (GTS) graphite heat conducting technology, like this; To detect air chamber places the high low temperature of CTPS701B to change in the moisture-heat test-box fast; It is very little and constant to detect the temperature difference that exists between the interior temperature of air chamber and test the temperature inside the box, and demarcates through test, and the temperature in the detection air chamber is higher all the time 1.67 ℃ than the temperature that the high low temperature of CTPS701B changes in the moisture-heat test-box fast; Promptly detect in the air chamber 1.67 ℃ of the temperature difference between the temperature and test the temperature inside the box, middle control computer according to the high low temperature of CTPS701B change fast moisture-heat test-box the temperature setting, detect temperature in the air chamber and the temperature difference tested between the temperature inside the box can directly obtain to detect the temperature parameter in the air chamber; Certainly, the temperature parameter of gas monitoring system to be measured or gas monitoring system array working environment to be measured also can be monitored acquisition through in the check air chamber, respective sensor being set.In a word; The present invention adopts the high low temperature of CTPS701B to change moisture-heat test-box fast and graphite thick film detection air chamber is that test macro provides the core testing environment more easy to control in the built-in heatable soleplate of sealed gas chamber than in early days; The most important thing is that simultaneously its environment temperature that provides is more accurate and more stable, the environment temperature difference is more constant.
Compared with prior art, test system structure according to the invention is reasonable, is to serve as the test macro of control core with middle control computer; Distribution when gas monitoring system is tested, detection, data processing all realize under the accurate control of middle control computer; Distribution is accurate, and testing environment is stable, and data processing is rapid; Test result is guaranteed, helps confirming the integrality and the application reliability of gas monitoring system.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Among the figure: 1-mixes gas tank; The 2-high pressure tank; The 3-decompressor; The 4-electronic flow-meter; The 5-controllable electromagnetic valve; 6-escape pipe I; 7-escape pipe II; 8-detects air chamber; The 9-type chamber of adjusting the temperature electronically; The 10-connection terminal; The 11-draft tube; The 12-gas outlet.
Embodiment
As shown in Figure 1, be used for the test macro of detected gas monitoring system integrality, reliability, constitute by control module, distribution unit, detecting unit;
Control module comprises middle control computer, the high-precision multi-path data acquisition unit and the mass spectrometer that are connected with middle control computer;
The distribution unit comprises the high pressure tank 2 that mixes gas tank 1, the basic gas of some storages; Each high pressure tank 2 is connected with mixed gas tank 1 through corresponding air guide pipeline respectively; Rise by high pressure tank 2 sides on each air guide pipeline and be disposed with decompressor 3, electronic flow-meter 4, controllable electromagnetic valve 5; Mix gas tank 1 and be provided with escape pipe I 6 and escape pipe II 7; Escape pipe I 6 is connected with mass spectrometric air source inlet by the road, and escape pipe I 6 is provided with controllable electromagnetic valve 5 with escape pipe II 7, and electronic flow-meter 4, controllable electromagnetic valve 5 are connected with middle control computer;
Detecting unit is included as gas monitoring system to be measured provides the detection air chamber 8 of test environment, the type that adjusts the temperature electronically chamber 9; Detecting air chamber 8 places in the type chamber 9 of adjusting the temperature electronically; Detect in the air chamber 8 and be provided with the connection terminal 10 that is connected with high-precision multi-path data acquisition unit input end; Detect air chamber 8 and be provided with draft tube 11 and gas outlet 12, gas outlet 12 is provided with controllable electromagnetic valve 5, and draft tube 11 is connected with the escape pipe II 7 of mixed gas tank 1 by the road; The type that adjusts the temperature electronically chamber 9, controllable electromagnetic valve 5 are connected with middle control computer; Said detection air chamber 8 is closed type test cabinet, and its cabinet door and cabinet wall are made up of graphite heat conducting thick film and explosion-proof steel mesh.
The said type chamber 9 of adjusting the temperature electronically adopts the high low temperature of CTPS701B to change moisture-heat test-box fast.
The distribution unit also is provided with the ultrasonic humidifier that is connected with middle control computer, and high pressure tank 2 is connected with ultrasonic humidifier with air guide pipeline between the mixed gas tank 1 by the road.
Claims (3)
1. a test macro that is used for detected gas monitoring system integrality, reliability is characterized in that: be made up of control module, distribution unit, detecting unit;
Control module comprises middle control computer, the high-precision multi-path data acquisition unit and the mass spectrometer that are connected with middle control computer;
The distribution unit comprises the high pressure tank (2) of mixed gas tank (1), the basic gas of some storages; Each high pressure tank (2) is connected with mixed gas tank (1) through corresponding air guide pipeline respectively; Rise by high pressure tank (2) side on each air guide pipeline and be disposed with decompressor (3), electronic flow-meter (4), controllable electromagnetic valve (5); Mix gas tank (1) and be provided with escape pipe I (6) and escape pipe II (7); Escape pipe I (6) is connected with mass spectrometric air source inlet by the road, and escape pipe I (6) and escape pipe II (7) be provided with controllable electromagnetic valve (5), and electronic flow-meter (4), controllable electromagnetic valve (5) are connected with middle control computer;
Detecting unit is included as gas monitoring system to be measured the detection air chamber (8) of test environment, the type that adjusts the temperature electronically chamber (9) is provided; Detecting air chamber (8) places in the type chamber (9) of adjusting the temperature electronically; Detect in the air chamber (8) and be provided with the connection terminal (10) that is connected with high-precision multi-path data acquisition unit input end; Detect air chamber (8) and be provided with draft tube (11) and gas outlet (12); Gas outlet (12) is provided with controllable electromagnetic valve (5), and draft tube (11) is connected with the escape pipe II (7) of mixed gas tank (1) by the road; The type that adjusts the temperature electronically chamber (9), controllable electromagnetic valve (5) are connected with middle control computer; Said detection air chamber (8) is closed type test cabinet, and its cabinet door and cabinet wall are made up of graphite heat conducting thick film and explosion-proof steel mesh.
2. the test macro that is used for detected gas monitoring system integrality, reliability according to claim 1 is characterized in that: the said type chamber (9) of adjusting the temperature electronically adopts the high low temperature of CTPS701B to change moisture-heat test-box fast.
3. the test macro that is used for detected gas monitoring system integrality, reliability according to claim 1; It is characterized in that: the distribution unit also is provided with the ultrasonic humidifier that is connected with middle control computer, and high pressure tank (2) is connected with ultrasonic humidifier with air guide pipeline between the mixed gas tank (1) by the road.
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| CN104090072A (en) * | 2014-07-03 | 2014-10-08 | 中国人民解放军后勤工程学院 | Calibration device of oil gas concentration detector |
| CN104931658A (en) * | 2015-06-26 | 2015-09-23 | 中国科学院工程热物理研究所 | Gas expansion device closure test system and test method |
| CN105403671A (en) * | 2015-11-24 | 2016-03-16 | 广西电网有限责任公司电力科学研究院 | Calibration device for gas concentration detection instrument |
| CN108956855A (en) * | 2017-05-17 | 2018-12-07 | 台达电子工业股份有限公司 | Test macro and method for air sensing device |
| CN110530938A (en) * | 2019-09-20 | 2019-12-03 | 山西汾西重工有限责任公司 | Ammonia level CONTINUOUS VISCOSITY MEASURING and measuring method in methane conveying |
| CN111983142A (en) * | 2020-07-28 | 2020-11-24 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Testing device and method for atmosphere detection device |
| CN112114004A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Testing device for detecting gas-sensitive sensing material in simulated diffusion mode |
| CN113008769A (en) * | 2019-12-20 | 2021-06-22 | 中国工程物理研究院材料研究所 | Stress and atmosphere coupling accelerated corrosion test device and test method |
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| CN112114004A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Testing device for detecting gas-sensitive sensing material in simulated diffusion mode |
| CN110530938A (en) * | 2019-09-20 | 2019-12-03 | 山西汾西重工有限责任公司 | Ammonia level CONTINUOUS VISCOSITY MEASURING and measuring method in methane conveying |
| CN113008769A (en) * | 2019-12-20 | 2021-06-22 | 中国工程物理研究院材料研究所 | Stress and atmosphere coupling accelerated corrosion test device and test method |
| CN111983142A (en) * | 2020-07-28 | 2020-11-24 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Testing device and method for atmosphere detection device |
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Application publication date: 20121003 |