CN105866329A - Verification apparatus for explosimeter - Google Patents
Verification apparatus for explosimeter Download PDFInfo
- Publication number
- CN105866329A CN105866329A CN201610171374.9A CN201610171374A CN105866329A CN 105866329 A CN105866329 A CN 105866329A CN 201610171374 A CN201610171374 A CN 201610171374A CN 105866329 A CN105866329 A CN 105866329A
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- Prior art keywords
- air pump
- explosimeter
- gas
- inversion
- frequency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
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- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a verification apparatus for an explosimeter. The verification apparatus comprises a gas cylinder, a rotor flowmeter, a to-be-detected instrument, a power supply module and a gas pump, wherein the output terminal of the power supply module is electrically connected with the gas pump, the gas outlet of the gas pump is connected with the gas inlet of the to-be-detected instrument via a silicone tube, the gas inlet of the gas pump is connected with the rotor flowmeter via another silicone tube, and the rotor flowmeter is connected with the gas outlet of the gas cylinder via another silicone tube. The verification apparatus is safe, reliable, convenient to operate and high in verification precision, can simultaneously detect a plurality of explosimeters, has improved work efficiency and saves a great amount of external examination and verification cost; and each gas pump can be separately operated, so operation is convenient.
Description
Technical field
The present invention relates to instrument calibration technology field, particularly relate to a kind of explosimeter calibration equipment.
Background technology
Explosimeter is the instrument of detection fuel gas, is capable of the verification to oxygen, carbon monoxide, methane multiple portable gas alarm simultaneously and demarcates.Explosimeter make regular check on demarcation, be to ensure that the effective measures of analysis of moveable fire data accuracy, be also to ensure that one of chemical enterprise safety inspection and the important prerequisite condition realizing Essence of Business safety simultaneously.In order to ensure the accuracy of analysis of moveable fire data, the apparatus guarantee personnel monthly regular portable explosimeter to each analysis post carry out checking and demarcate.
Under normal circumstances, it is to use the rubber bladder of 4 liters to fill standard fuel gas that the inspection of explosimeter is demarcated, or directly spinner flowmeter is connected gas steel cylinder, and then manual operation makes its flammable calibrating gas flow through explosimeter sensor, carries out artificial parameter comparison demarcation.The method is because the most manually extruding bladders or adjusting roughly calibrating gas flow by spinner flowmeter, standard fuel gas Accurate Data Flow Control cannot be realized, practical operation exists calibrating gas changes in flow rate big, cause the impact of explosimeter checking precision bigger, and can only gradually verify by separate unit, verifying work inefficiency.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, design a kind of explosimeter calibration equipment, solve the problem that in prior art, explosimeter verification error is bigger.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is:
A kind of explosimeter calibration equipment, including gas cylinder, spinner flowmeter, by test examination instrument, power module, air pump, the outfan of described power module electrically connects with air pump, the gas outlet of air pump is connected with by the air inlet of test examination instrument by silica gel tube, the air inlet of air pump is connected with spinner flowmeter by silica gel tube, and spinner flowmeter is connected with the gas outlet of gas cylinder by silica gel tube；Described air pump and by test examination instrument all at least.
Described power module includes switch, display lamp, transformator, inversion/frequency-variable module circuit, described switch includes battery main switch and Branch control switch, display lamp includes power supply indicator and bifurcation state display lamp, described battery main switch is connected with power supply indicator, power supply indicator is connected with transformer inputs, transformator outfan is connected with inversion/frequency-variable module circuit signal input, and the inversion/signal output part of frequency-variable module circuit is connected with the power end of air pump.
Branch control switch and bifurcation state display lamp it is provided with between described transformator and inversion/frequency-variable module circuit.
Described gas cylinder is at least one, and gas cylinder is built with oxygen or methane or the calibrating gas of carbon monoxide.
Described air pump is electromagnetic drive type diaphragm air pump.
The positive beneficial effect of the present invention:
1, compact of the present invention, compact conformation, safe and reliable, easy to operate, checking precision is high.
2, multiple stage explosimeter can be detected simultaneously, improve work efficiency, save substantial amounts of outer calibration for enterprise and tested expense.
3, every air pump can individually operate, easy to use.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the present invention
In figure, the implication of label is: 1 is gas cylinder, and 2 is spinner flowmeter, and 3 is by test examination instrument, 4 is air pump, 5 is transformator, and 6 is switch, and 6-1 is battery main switch, 6-2 ~ 6-4 is Branch control switch, 7 is display lamp, and 7-1 is power supply indicator, and 7-2 ~ 7-4 is bifurcation state display lamp, 8 is inversion/frequency-variable module circuit, and 9 is silica gel tube.
Detailed description of the invention
Illustrate the detailed description of the invention of the present invention below in conjunction with the accompanying drawings.
See Fig. 1, the explosimeter calibration equipment of the present invention, including gas cylinder 1, spinner flowmeter 2, by test examination instrument 3, power module, air pump 4, the outfan of described power module electrically connects with air pump 4, the gas outlet of air pump 4 is connected with by the air inlet of test examination instrument 3 by silica gel tube 9, the air inlet of air pump 4 is connected with spinner flowmeter 2 by silica gel tube 9, and spinner flowmeter 2 is connected by the gas outlet of silica gel tube 9 with gas cylinder 1；Described air pump 4 and by test examination instrument 3 all at least, described gas cylinder 1 at least, gas cylinder 1 is built with oxygen or methane or the calibrating gas of carbon monoxide.Air pump 4 shown in Fig. 1, it is three by test examination instrument 3.
Described power module includes switching 6, display lamp 7, transformator 5, inversion/frequency-variable module circuit 8, and described switch 6 includes battery main switch 6-1 and Branch control switch 6-2 ~ 6-4, and display lamp 7 includes power supply indicator 7-1 and bifurcation state display lamp 7-2 ~ 7-4.Described battery main switch 6-1 is connected with power supply indicator 7-1, power supply indicator 7-1 is connected with transformator 5 input, transformator 5 outfan signal input part with inversion/frequency-variable module circuit 8-1 ~ 8-3 respectively is connected, inversion/the signal output part of frequency-variable module circuit 8-1 is connected with the power end of air pump 4-1, the air inlet of air pump 4-1 is connected with spinner flowmeter 2 by silica gel tube 9, and the gas outlet of air pump 4-1 is connected with by the air inlet of test examination instrument 3-1 by silica gel tube 9；Inversion/the signal output part of frequency-variable module circuit 8-2 is connected with the power end of air pump 4-2, and the air inlet of air pump 4-2 is connected with spinner flowmeter 2 by silica gel tube 9, and the gas outlet of air pump 4-2 is connected with by the air inlet of test examination instrument 3-2 by silica gel tube 9；Inversion/the signal output part of frequency-variable module circuit 8-3 is connected with the power end of air pump 4-3, and the air inlet of air pump 4-3 is connected with spinner flowmeter 2 by silica gel tube 9, and the gas outlet of air pump 4-3 is connected with by the air inlet of test examination instrument 3-3 by silica gel tube 9.Spinner flowmeter 2 is connected by the gas outlet of silica gel tube 9 with gas cylinder 1
Branch control switch 6-2 ~ 6-4 and bifurcation state display lamp 7-2 ~ 7-4 it is provided with between described transformator 5 and inversion/frequency-variable module circuit 8.Air pump 4-1 ~ 4-3 is individually controlled by Branch control switch 6-2 ~ 6-4 respectively, and each branch road is provided with bifurcation state display lamp 7-2 ~ 7-4, it is possible to show the duty of each branch road, to point out user, uses simple, easy to operate.
The present invention passes through low-voltage direct/variable-frequency power sources module, 3V-10V unidirectional current is converted to the alternating current of the 6V that supply frequency is 60Hz, is used for driving air pump.Air pump 4 uses micro electromagnetic drive-type diaphragm air pump, there is the feature of low-voltage, no-spark, good airproof performance, ensure that the safety of calibration equipment checking procedure, every micro electromagnetic drive-type diaphragm air pump can make gas stability of flow at 200mL/min(± 10mL), gas flow is stable, ensure that verification numerical precision and concordance, its verification Numerical accuracy can reach ± 0.5F.S, it is to avoid manual operation causes bigger error.Can verify multiple stage explosimeter, Fig. 1 show and can verify 3 explosimeters simultaneously, improves work efficiency the most simultaneously.Manual compression bladders method of calibration checking precision only can reach ± 10%F.S, and verification inefficiency, the drawbacks such as manual operation error is big, waste calibrating gas in the past.The present invention was through the test of 4 months, and its checking precision can reach ± 0.5F.S, substantially increased the accuracy of verification numerical value, provided basic guarantee for enterprise's analysis of moveable fire and safety inspection, and had saved substantial amounts of outer calibration for enterprise and test expense.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit；Although being described in detail the present invention with reference to preferred embodiment, those of ordinary skill in the field are to be understood that；Still the detailed description of the invention of the present invention can be modified or portion of techniques feature is carried out equivalent；Without deviating from the spirit of technical solution of the present invention, it all should be contained in the middle of the technical scheme scope that the present invention is claimed.
Claims (5)
1. an explosimeter calibration equipment, including gas cylinder, spinner flowmeter, by test examination instrument, it is characterized in that: also include power module, air pump, described power module electrically connects with the power end of air pump, the gas outlet of air pump is connected with by the air inlet of test examination instrument by silica gel tube, the air inlet of air pump is connected with spinner flowmeter by silica gel tube, and spinner flowmeter is connected with gas cylinder by silica gel tube；Described air pump and by test examination instrument all at least.
Explosimeter calibration equipment the most according to claim 1, it is characterized in that: described power module includes switch, display lamp, transformator, inversion/frequency-variable module circuit, described switch includes battery main switch and Branch control switch, display lamp includes power supply indicator and bifurcation state display lamp, described battery main switch is connected with power supply indicator, power supply indicator is connected with transformer inputs, transformator outfan is connected with inversion/frequency-variable module circuit signal input, and the inversion/signal output part of frequency-variable module circuit is connected with the power end of air pump.
Explosimeter calibration equipment the most according to claim 2, is characterized in that: be provided with Branch control switch and bifurcation state display lamp between described transformator and inversion/frequency-variable module circuit.
Explosimeter calibration equipment the most according to claim 1, is characterized in that: described gas cylinder is at least one, and gas cylinder is built with oxygen or methane or the calibrating gas of carbon monoxide.
Explosimeter calibration equipment the most according to claim 1, is characterized in that: described air pump is electromagnetic drive type diaphragm air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171374.9A CN105866329A (en) | 2016-03-24 | 2016-03-24 | Verification apparatus for explosimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171374.9A CN105866329A (en) | 2016-03-24 | 2016-03-24 | Verification apparatus for explosimeter |
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| Publication Number | Publication Date |
|---|---|
| CN105866329A true CN105866329A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610171374.9A Pending CN105866329A (en) | 2016-03-24 | 2016-03-24 | Verification apparatus for explosimeter |
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| CN (1) | CN105866329A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608974A (en) * | 2019-10-15 | 2019-12-24 | 中煤科工集团重庆研究院有限公司 | Drillings gas desorption index calibrator |
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| WO1994029709A1 (en) * | 1993-06-04 | 1994-12-22 | Dalhousie University | Gas detection, identification and elemental and quantitative analysis system |
| CN101943691A (en) * | 2010-04-14 | 2011-01-12 | 广西电网公司电力科学研究院 | Device and method for checking SF6 gas leakage monitoring and alarming apparatuses |
| CN102435268A (en) * | 2011-11-02 | 2012-05-02 | 中国核工业二三建设有限公司 | Calibration device for gas flow meter and method thereof |
| CN202735331U (en) * | 2012-08-06 | 2013-02-13 | 山西科致成科技有限公司 | Vehicle-mounted methane sensor and alarm calibration device |
| CN202770587U (en) * | 2012-09-14 | 2013-03-06 | 天津世纪慧芯科技发展有限公司 | Gas pressure calibration device |
| CN102980976A (en) * | 2012-12-05 | 2013-03-20 | 徐州传庆电子科技有限公司 | Comprehensive verification table of gas alarm instrument |
| CN203606084U (en) * | 2013-12-02 | 2014-05-21 | 河南省日立信股份有限公司 | On-site fast checking system of sulfur hexafluoride gas leakage monitoring device |
| CN203606339U (en) * | 2013-11-15 | 2014-05-21 | 国家电网公司 | Device for detecting sulfur hexafluoride leakage alarming instrument |
| CN204536254U (en) * | 2015-02-04 | 2015-08-05 | 深圳德士特智慧科技有限公司 | A kind of multichannel formaldehyde gathers intelligent calibration system |
-
2016
- 2016-03-24 CN CN201610171374.9A patent/CN105866329A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056751U (en) * | 1989-06-14 | 1990-05-02 | 徐梦然 | Marking box for combustible gas warner |
| WO1994029709A1 (en) * | 1993-06-04 | 1994-12-22 | Dalhousie University | Gas detection, identification and elemental and quantitative analysis system |
| CN101943691A (en) * | 2010-04-14 | 2011-01-12 | 广西电网公司电力科学研究院 | Device and method for checking SF6 gas leakage monitoring and alarming apparatuses |
| CN102435268A (en) * | 2011-11-02 | 2012-05-02 | 中国核工业二三建设有限公司 | Calibration device for gas flow meter and method thereof |
| CN202735331U (en) * | 2012-08-06 | 2013-02-13 | 山西科致成科技有限公司 | Vehicle-mounted methane sensor and alarm calibration device |
| CN202770587U (en) * | 2012-09-14 | 2013-03-06 | 天津世纪慧芯科技发展有限公司 | Gas pressure calibration device |
| CN102980976A (en) * | 2012-12-05 | 2013-03-20 | 徐州传庆电子科技有限公司 | Comprehensive verification table of gas alarm instrument |
| CN203606339U (en) * | 2013-11-15 | 2014-05-21 | 国家电网公司 | Device for detecting sulfur hexafluoride leakage alarming instrument |
| CN203606084U (en) * | 2013-12-02 | 2014-05-21 | 河南省日立信股份有限公司 | On-site fast checking system of sulfur hexafluoride gas leakage monitoring device |
| CN204536254U (en) * | 2015-02-04 | 2015-08-05 | 深圳德士特智慧科技有限公司 | A kind of multichannel formaldehyde gathers intelligent calibration system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608974A (en) * | 2019-10-15 | 2019-12-24 | 中煤科工集团重庆研究院有限公司 | Drillings gas desorption index calibrator |
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Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |