CN102914487A - Trace gas metering device used for grading materials capable of sending out combustible gases in presence of water - Google Patents
Trace gas metering device used for grading materials capable of sending out combustible gases in presence of water Download PDFInfo
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- CN102914487A CN102914487A CN2012103998519A CN201210399851A CN102914487A CN 102914487 A CN102914487 A CN 102914487A CN 2012103998519 A CN2012103998519 A CN 2012103998519A CN 201210399851 A CN201210399851 A CN 201210399851A CN 102914487 A CN102914487 A CN 102914487A
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- volume pump
- synchronizing wheel
- discharge volume
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Abstract
The invention relates to a trace gas metering device used for grading materials capable of sending out combustible gases in the presence of water. A water injection pipe is inserted into a reaction flask through a bottle plug, one end of a gas guide pipe is inserted into the reaction flask through the bottle plug, the other end of the gas guide pipe is sequentially connected with a micro pressure sensor, a gas suction control electromagnetic valve and a tee joint, an exhaust control electromagnetic valve is connected into a gas collection bag, the other port of the tee joint is respectively communicated with gas chambers of a suction and exhaust metering pump A and a suction and exhaust metering pump B through another gas guide pipe, a connecting rod is fixed in a locking device, two ends of the connecting rod are respectively fixed to piston rods of the suction and exhaust metering pump A and the suction and exhaust metering pump B, a synchronization belt is sleeved on a synchronization wheel A, the locking device and a synchronization wheel B, the synchronization wheel A and the synchronization wheel B tension the synchronization belt and then are fixed, a step motor is connected with the synchronization wheel B, and a micro pressure sensor is connected with a control unit. The trace gas metering device has the beneficial effects of simpleness and convenience in operation, and capabilities of accurately measuring the total generation quantity of gas and measuring the generation rate of the gas.
Description
Technical field
The present invention relates to a kind of gas dosing device, particularly a kind of minimum gas measuring apparatus of emitting the classification of inflammable gas material for chance water.
Background technology
Can emit gas in a lot of chemical reactions, the speed of weighing chemical reaction has a lot of parameters, climbing speed such as temperature of reaction, and for example certain chemical reaction can be emitted a large amount of gas, Cucumber can be emitted gas after meeting water, the climbing speed of closed container internal pressure, be an important indicator weighing its reaction velocity, therefore can emit the reaction velocity, danger etc. of the chemical reaction of gas for accurate evaluation, need speed and the gas flow of generation gas in these reactions of Measurement accuracy.
At present, all stipulated to meet the fire risk stage division that water is emitted the inflammable gas material among the United Nations's " about recommendation of Dangerous Goods Transport ", the GB6944 " dangerous cargo classification and numbering ".Among the GA/T 536.4 " classification of inflammable and explosive dangerous goods fire risk and test method the 4th part are met water and emitted inflammable gas material classification test method " specified in more detail experimental technique and the experimental provision of its fire risk classification.Emit in the classification test of inflammable gas material fire risk at chance water, the gas flow of generation is less comparatively speaking, for the measurement of minimum gas and rate of gas release, has at present a small amount of external product can satisfy measuring requirement, but expensive.In the laboratory drainage is adopted in gas dosing usually.Simple and practical, but for producing the less experiment of gas, measured data are not accurate enough.And very difficult Measurement accuracy produces the speed of gas.
Summary of the invention
In view of the needs of real work, the invention provides a kind of simple in structure, easy for operation, minimum gas measuring apparatus that precision is high, but but the not only total burst size of mensurated gas composition but also mensurated gas composition rate of release.Concrete technical scheme is, be used for meeting the minimum gas measuring apparatus that water is emitted the classification of inflammable gas material, comprise water injection pipe, micropressure sensor, air-breathing control solenoid valve, threeway, exhaust control solenoid valve, the gas collection air bag, the A synchronizing wheel, A suction and discharge volume pump, wireway, connecting rod, locking device, Timing Belt, the B synchronizing wheel, stepper motor, B suction and discharge volume pump, reaction flask, it is characterized in that: water injection pipe is in bottle stopper inserts reaction flask, wireway one end is in bottle stopper inserts reaction flask, the other end is connected micropressure sensor successively, air-breathing control solenoid valve, threeway, in the exhaust control solenoid valve access gas collection air bag, the another port of threeway with another root wireway respectively with A suction and discharge volume pump, B suction and discharge metering air chamber of pump communicates, connecting rod be fixed in the locking device and two ends respectively with A suction and discharge volume pump, the piston rod of B suction and discharge volume pump is fixed together, Timing Belt is sleeved on the A synchronizing wheel, on locking device and the B synchronizing wheel, fixing behind A synchronizing wheel and the B synchronizing wheel tension Timing Belt, stepper motor and B synchronizing wheel link together, and micropressure sensor links to each other with control module.
Its principle is to make A by wireway, B suction and discharge volume pump links to each other, at first open air-breathing control solenoid valve 3, close exhaust control solenoid valve 5, make A suction volume pump and reaction flask UNICOM, when in the reaction flask γ-ray emission being arranged, internal pressure will increase, micropressure sensor detects this variation, rotate a fixed angle by the control system Driving Stepping Motor, drive synchronously simultaneously A, B suction and discharge volume pump piston moves a fixed range, make the reaction flask pressure decreased, so repeatedly, make pressure get back to initial value, the gas of generation is collected into A, in the B suction and discharge volume pump, the Δs such as the gas flow V=S that angle of the every rotation of stepper motor is collected * L. S-A, B suction and discharge volume pump total sectional area, L-A, displacement corresponding to B suction and discharge volume pump piston is closed air-breathing control solenoid valve, opens exhaust control solenoid valve, the stepper motor reverse rotation is with A, the gas of collecting in the B suction and discharge volume pump is discharged in the gas collection air bag.Gas production rate can obtain by the rate calculations of A, B suction and discharge volume pump piston movement.
The invention has the beneficial effects as follows simple, convenient, can Accurate Determining γ-ray emission total amount, but the speed that produces of mensurated gas composition again.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, the coupling part of device all adopts the polytetrafluoro pad to connect, water injection pipe 1 is in bottle stopper inserts reaction flask 16, wireway 9 one ends are in bottle stopper inserts reaction flask 16, the other end is connected micropressure sensor 2 successively, air-breathing control solenoid valve 3, threeway 4, in the exhaust control solenoid valve 5 access gas collection air bags 6, the another port of threeway 4 with another root wireway 9 respectively with A suction and discharge volume pump 8, the air chamber of B suction and discharge volume pump 15 communicates, connecting rod 10 be fixed in the locking device 11 and two ends respectively with A suction and discharge volume pump 8, the piston rod of B suction and discharge volume pump 15 is fixed together, Timing Belt 12 is sleeved on A synchronizing wheel 7, on locking device 11 and the B synchronizing wheel 13, A synchronizing wheel 7 is rear fixing with B synchronizing wheel 13 tension Timing Belts 12, stepper motor 14 links together with B synchronizing wheel 13, and micropressure sensor 2 links to each other with control module.
During concrete operations:
[1] will meet water emits the material of inflammable gas and puts into reaction flask 16;
[2] pass through water injection pipe 1 to a small amount of clear water of reaction flask 16 interior injections;
[3] after the reaction beginning, reaction flask 16 can produce gas, and at this moment micropressure sensor 2 can detect pressure signal;
[4] after control module detects pressure signal, open air-breathing control solenoid valve 3, close exhaust control solenoid valve 5, simultaneously can control step motor 14 drive simultaneously the air-breathing piston movement in A suction and discharge volume pump 8, the B suction and discharge volume pump 15, the gas of reaction flask 16 interior generations is siphoned away;
When [5] piston movement in A suction and discharge volume pump 8, the B suction and discharge volume pump 15 is to maximum position, open exhaust control solenoid valve 5, close air-breathing control solenoid valve 3, pistons in air-breathing, the exhaust volume pump 8,15 move upward, and gas is entered in the gas collection air bag 6;
[6] control module can pass through times of exercise and the movement velocity of A suction and discharge volume pump 8, B suction and discharge volume pump 15 pistons, calculates the total amount that discharges gas and the speed that discharges gas.
Claims (1)
1. one kind is used for meeting the minimum gas measuring apparatus that water is emitted the classification of inflammable gas material, comprise water injection pipe (1), micropressure sensor (2), air-breathing control solenoid valve (3), threeway (4), exhaust control solenoid valve (5), gas collection air bag (6), A synchronizing wheel (7), A suction and discharge volume pump (8), wireway (9), connecting rod (10), locking device (11), Timing Belt (12), B synchronizing wheel (13), stepper motor (14), B suction and discharge volume pump (15), reaction flask (16), it is characterized in that: water injection pipe (1) is in bottle stopper inserts reaction flask (16), wireway (9) one ends are in bottle stopper inserts reaction flask (16), the other end is connected micropressure sensor (2) successively, air-breathing control solenoid valve (3), threeway (4), in exhaust control solenoid valve (5) the access gas collection air bag (6), the another port of threeway (4) with another root wireway (9) respectively with A suction and discharge volume pump (8), the air chamber of B suction and discharge volume pump (15) communicates, connecting rod (10) be fixed in the locking device (11) and two ends respectively with A suction and discharge volume pump (8), the piston rod of B suction and discharge volume pump (15) is fixed together, Timing Belt (12) is sleeved on A synchronizing wheel (7), on locking device (11) and the B synchronizing wheel (13), A synchronizing wheel (7) is rear fixing with B synchronizing wheel (13) tension Timing Belt (12), stepper motor (14) links together with B synchronizing wheel (13), and micropressure sensor (2) links to each other with control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399851.9A CN102914487B (en) | 2012-10-19 | 2012-10-19 | Trace gas metering device used for grading materials capable of sending out combustible gases in presence of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399851.9A CN102914487B (en) | 2012-10-19 | 2012-10-19 | Trace gas metering device used for grading materials capable of sending out combustible gases in presence of water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102914487A true CN102914487A (en) | 2013-02-06 |
| CN102914487B CN102914487B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210399851.9A Expired - Fee Related CN102914487B (en) | 2012-10-19 | 2012-10-19 | Trace gas metering device used for grading materials capable of sending out combustible gases in presence of water |
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| CN (1) | CN102914487B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729955A (en) * | 2014-12-31 | 2015-06-24 | 谱尼测试科技股份有限公司 | Device and method for determining gas collection and production rate |
| CN106596327A (en) * | 2016-12-19 | 2017-04-26 | 浙江出入境检验检疫局检验检疫技术中心 | Water meeting gas discharge tester and use method thereof |
| CN111781090A (en) * | 2019-04-04 | 2020-10-16 | 应急管理部化学品登记中心 | Test device for testing gas velocity of substance in water and application |
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| JPS58106439A (en) * | 1981-12-21 | 1983-06-24 | Idemitsu Kosan Co Ltd | Quickly measuring method for grown quantity of cancer |
| CN101413862A (en) * | 2008-11-11 | 2009-04-22 | 中国石油化工股份有限公司 | Apparatus for testing velocity of inflammable gas given out by substance when contacting with water |
| CN201368838Y (en) * | 2008-12-25 | 2009-12-23 | 张少岩 | Gas collecting and metering system |
| CN102109448A (en) * | 2011-01-10 | 2011-06-29 | 王利兵 | Tester for measuring degassing rate of dangerous chemical under condition of meeting water |
| CN202837140U (en) * | 2012-10-19 | 2013-03-27 | 公安部天津消防研究所 | Trace gas metering device |
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2012
- 2012-10-19 CN CN201210399851.9A patent/CN102914487B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58106439A (en) * | 1981-12-21 | 1983-06-24 | Idemitsu Kosan Co Ltd | Quickly measuring method for grown quantity of cancer |
| CN101413862A (en) * | 2008-11-11 | 2009-04-22 | 中国石油化工股份有限公司 | Apparatus for testing velocity of inflammable gas given out by substance when contacting with water |
| CN201368838Y (en) * | 2008-12-25 | 2009-12-23 | 张少岩 | Gas collecting and metering system |
| CN102109448A (en) * | 2011-01-10 | 2011-06-29 | 王利兵 | Tester for measuring degassing rate of dangerous chemical under condition of meeting water |
| CN202837140U (en) * | 2012-10-19 | 2013-03-27 | 公安部天津消防研究所 | Trace gas metering device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729955A (en) * | 2014-12-31 | 2015-06-24 | 谱尼测试科技股份有限公司 | Device and method for determining gas collection and production rate |
| CN106596327A (en) * | 2016-12-19 | 2017-04-26 | 浙江出入境检验检疫局检验检疫技术中心 | Water meeting gas discharge tester and use method thereof |
| CN111781090A (en) * | 2019-04-04 | 2020-10-16 | 应急管理部化学品登记中心 | Test device for testing gas velocity of substance in water and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102914487B (en) | 2014-06-25 |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Wang Inventor after: Li Ye Inventor after: Zhang Yuxian Inventor after: Liu Yongmei Inventor after: Ren Changxing Inventor after: Lv Dong Inventor after: Wang Jie Inventor after: Zhang Xin Inventor after: Guan Changyong Inventor before: Zhang Wang Inventor before: Li Ye Inventor before: Zhang Yuxian Inventor before: Ren Changxing Inventor before: Lv Dong Inventor before: Wang Jie Inventor before: Zhang Xin Inventor before: Wu Wei Inventor before: Guan Changyong |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG WANG LI YE ZHANG YUXIAN REN CHANGXING LV DONG WANG JIE ZHANG XIN WU WEI GUAN CHANGYONG TO: ZHANG WANG LI YE ZHANG YUXIAN LIU YONGMEI REN CHANGXING LV DONG WANG JIE ZHANG XIN GUAN CHANGYONG |
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