CN104280558A - Calibrating device for exhaled gas alcohol content detector - Google Patents
Calibrating device for exhaled gas alcohol content detector Download PDFInfo
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- CN104280558A CN104280558A CN201410551228.XA CN201410551228A CN104280558A CN 104280558 A CN104280558 A CN 104280558A CN 201410551228 A CN201410551228 A CN 201410551228A CN 104280558 A CN104280558 A CN 104280558A
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/98—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving alcohol, e.g. ethanol in breath
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Abstract
The invention relates to a calibrating device for an exhaled gas alcohol content detector. The calibrating device comprises a gas source, a gas generation system and the exhaled gas alcohol content detector, wherein the gas generation system comprises a sealed vessel, a heating device and an alcohol solution, the alcohol solution is arranged in the sealed vessel, a gas outlet end of a gas inlet pipe is arranged below the surface of the alcohol solution, the gas generation system is connected with the exhaled gas alcohol content detector through a gas outlet pipe, a gas inlet end of the gas outlet pipe is arranged above the surface of the alcohol solution, and the heating device is arranged in the sealed vessel. The alcohol solution is prepared by utilizing an ethanol purity standard substance of a given amount and distilled water, and the alcohol solution in the sealed vessel is heated to 34 DEG C. The generated alcohol gas and the alcohol solution can reach gas-liquid balance due to the two-phase balance of the alcohol aqueous solution and the alcohol gas, clean air is continuously blown into the alcohol solution, and the alcohol gas is introduced to the exhaled gas alcohol content detector, so that the exhaled gas alcohol content detector can be verified and calibrated.
Description
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technical field:
The invention belongs to the detection checking and accepting technology field of alcohol content of exhalation gas detector, be specifically related to a kind of calibrating installation alcohol content of exhalation gas detector being carried out to examine and determine.
background technology:
Alcohol content of exhalation gas detector is for the alcohol content in human body breath.Detector is made up of parts such as gas circuit, electronic circuit, sensor and displays, its principle of work be alcohol gas by sensor, be converted into curtage signal, then by circuit analog to digital conversion, instrument demonstrate the alcohol concentration value in gas.
For ensureing the accurate and unified of alcohol content of exhalation gas detector measured value in use, State Bureau of Technical Supervision has promulgated JJG657-2006 " alcohol content of exhalation gas detector vertification regulation ", this code is applicable to the calibrating first of alcohol content of exhalation gas detector, follow-up calibrating and the inspection in using, but, at present, market does not also meet completely the calibration equipment that " alcohol content of exhalation gas detector vertification regulation " require and has following three kinds:
The first is liquid organic gas air distributing device: the device being the method preparation proof-spirit gas that a kind of mass rate sound combines, its principle is in quantitative air-flow, inject the absolute alcohol liquid of certain volume, and make liquid fully vaporization, after diluents Homogeneous phase mixing, be filled with airbag.Existing problems: distribution process influence factor is many, inefficiency; Gaseous state is dry gas, differs greatly with the real use state of alcohol content of exhalation gas detector.
The second is alcohol breath simulator: the distribution of application Ge Lahanmu law of gas diffusion, is blown in alcohol simulator with air pump by room air, produces calibrating gas and export.Shortcoming: indoor air circulation uses, and gaseous tension, the flow of instrument are wayward, and outputting standard gas flow uses by rule of thumb.
The third is ethanol calibrating gas in bottled air: weak point, and concentration is fixed, and can not change standard value according to instrument range, the term of validity is short, increases use cost.
summary of the invention:
In sum, in order to overcome the deficiency of prior art problem, the invention provides a kind of alcohol content of exhalation gas detector calibrating installation, it at normal atmospheric pressure, with a certain amount of purity of alcohol standard substance and distilled water obtain ethanol solution, and be heated in airtight container 34 DEG C (temperature of characteristics of contaminated respiratory droplets gas).Water in airtight container, vapour are in state of saturation, the alcohol gas produced and alcohol easily reach vapor liquid equilibrium state, then by constantly blasting pure air in alcoholic solution, thus alcohol gas is passed into alcohol content of exhalation gas detector, carry out the calibration of alcohol content of exhalation gas detector, calibration operation, complete the calibrating project that JJG657-2006 specifies.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A kind of alcohol content of exhalation gas detector calibrating installation, wherein: comprise source of the gas, gas generating system and alcohol content of exhalation gas detector, the gas outlet of described source of the gas is communicated with gas generating system by draft tube, described gas generating system is connected with alcohol content of exhalation gas detector by escape pipe, described gas generating system comprises airtight container, heating arrangement and alcoholic solution, alcoholic solution is provided with in airtight container, the outlet side of draft tube is arranged under alcoholic solution liquid level, described gas generating system is connected with alcohol content of exhalation gas detector by escape pipe, the inlet end of described escape pipe is arranged on alcoholic solution liquid level, heating arrangement is provided with in described airtight container, heating devices heat alcoholic solution.
Technical scheme of the present invention can also be achieved in that described alcoholic solution is that purity of alcohol standard substance and distilled water configuration form.
Technical scheme of the present invention can also be achieved in that described source of the gas is bottled pure air.
Technical scheme of the present invention can also be achieved in that described draft tube and escape pipe are polyfluortetraethylene pipe.
Technical scheme of the present invention can also be achieved in that and the described draft tube between source of the gas to airtight container is disposed with flow controller and pressure controller.
Technical scheme of the present invention can also be achieved in that and described escape pipe is provided with filtrator.
Technical scheme of the present invention can also be achieved in that in described airtight container and be provided with stirrer.
Technical scheme of the present invention can also be achieved in that and described airtight container is provided with temperature controller.
Technical scheme of the present invention can also be achieved in that and described airtight container is provided with gas circuit timer.
Technical scheme of the present invention can also be achieved in that in described airtight container and be provided with temperature sensor, and temperature sensor is arranged under alcoholic solution liquid level, and temperature sensor is connected by data line with temperature controller.
Technical scheme of the present invention can also be achieved in that the outlet side of described draft tube is provided with foaming tube.
Beneficial effect of the present invention is:
1, the present invention at normal atmospheric pressure, with a certain amount of purity of alcohol standard substance and distilled water obtain ethanol solution, and is heated in airtight container 34 DEG C (temperature of characteristics of contaminated respiratory droplets gas).The biphase equilibrium of alcohol water blend and alcohol gas, water in airtight container, vapour are in state of saturation, the alcohol gas produced and alcoholic solution reach balance, then by constantly blasting pure air in alcoholic solution, thus alcohol gas is passed into alcohol content of exhalation gas detector, carry out the calibration of alcohol content of exhalation gas detector, calibration operation, complete the calibrating project that JJG657-2006 specifies.
2, source of the gas of the present invention adopts bottled pure air, abandons usual to use air pump intake method, effectively prevent and is discharged into alcohol gas in air to the interference to verification result; Alcoholic solution of the present invention adopts purity of alcohol standard substance and distilled water configuration to form, and can guarantee alcohol gas accuracy and the reliability of generation.
3, airtight container of the present invention is provided with gas circuit timer, total institute is known, the alcohol water blend of certain volume, concentration produces the gas of concentration of the same race under vapor liquid equilibrium state, concentration keeps constant within a certain period of time, can be used to continuous calibrating, calibration instrument, but exceed time dimension, equilibrium state originally cannot continue, gas concentration can reduce gradually, so must control alcohol gas output time.Gas circuit timer can meet the requirement that different instrument manufacturer facility man sets about acquisition time, ensures that alcohol gas passes into time of instrument constant in verification process; Can according to tested alcohol content of exhalation gas detector acquisition time setting alcohol gas output time, avoid wasting alcohol gas, can according to the alcoholic solution of variable concentrations, volume, proof spirit gas time of origin, stored count, after reaching the stipulated time, control system will stop exporting gas automatically.
4, heating arrangement and temperature controller is provided with in airtight container of the present invention, heating arrangement and temperature controller, 34 DEG C are heated to the alcoholic solution in airtight container, and keep this temperature, 34 DEG C is the temperature of human body breath, draft tube of the present invention is arranged flow controller and pressure controller, the pressure of pure air and flow that enter airtight container are accurately controlled, simulate the pressure of characteristics of contaminated respiratory droplets gas, flow, temperature and humidity as much as possible, ensure accuracy and the reliability of calibrating.
5, escape pipe of the present invention is provided with filtrator, filtrator can filter out steam in alcohol gas and impurity, ensures the purity of calibrating alcohol gas.
6, draft tube of the present invention and escape pipe all adopt polyfluortetraethylene pipe, and polyfluortetraethylene pipe without suction-operated, thus reduces the loss of alcohol gas in flow process to alcohol short-term.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of alcohol content of exhalation gas detector calibrating installation, comprise source of the gas 1, described source of the gas 1 adopts bottled pure air, the gas outlet of source of the gas 1 is communicated with gas generating system by draft tube 2, described gas generating system is connected with alcohol content of exhalation gas detector 4 by escape pipe 3, escape pipe 3 is provided with filtrator 10, described gas generating system comprises airtight container 5, heating arrangement 6 and alcoholic solution 7, alcoholic solution 7 is provided with in airtight container 5, the outlet side of draft tube 2 is arranged under alcoholic solution 7 liquid level, alcoholic solution 7 forms for purity of alcohol standard substance and distilled water configure, described gas generating system is connected with alcohol content of exhalation gas detector 4 by escape pipe 3, the inlet end of described escape pipe 3 is arranged on alcoholic solution 7 liquid level, be provided with heating arrangement 6 in described airtight container 5, heating arrangement 6 heats alcoholic solution 7.Draft tube 2 from source of the gas 1 to airtight container 5 is disposed with flow controller 8 and pressure controller 9, and described draft tube 2 and escape pipe 3 are polyfluortetraethylene pipe.Stirrer 11 is provided with in airtight container 5.Described airtight container 5 is provided with temperature controller 12.Described airtight container 5 is provided with gas circuit timer 13.Be provided with temperature sensor 14 in described airtight container 5, temperature sensor 14 is arranged under alcoholic solution 7 liquid level, and temperature sensor 14 is connected by data line with temperature controller 12.The outlet side of described draft tube 2 is provided with foaming tube 15.
When needs are examined and determine alcohol content of exhalation gas detector 4, alcohol content of exhalation gas detector 4 to be examined and determine is communicated with escape pipe 3, start heating arrangement 6 and temperature controller 12, alcoholic solution 7 in airtight container 5 is heated to 34 DEG C, the alcoholic solution 7 in airtight container 5 and alcohol gas is made to reach vapor liquid equilibrium state, then start source of the gas 1 and blow pure air in airtight container 5, proof-spirit gas is exported, alcohol content of exhalation gas detector 4 is passed into by escape pipe 3 and filtrator 10, alcohol content of exhalation gas detector 4 is examined and determine.
Be noted that, the above embodiment is unrestricted to the explanation of technical solution of the present invention, the equivalent replacement of art those of ordinary skill or other amendment made according to prior art, as long as do not exceed thinking and the scope of technical solution of the present invention, all should be included within interest field of the presently claimed invention.
Claims (9)
1. an alcohol content of exhalation gas detector calibrating installation, it is characterized in that: comprise source of the gas (1), gas generating system and alcohol content of exhalation gas detector (4), the gas outlet of described source of the gas (1) is communicated with gas generating system by draft tube (2), described gas generating system is connected with alcohol content of exhalation gas detector (4) by escape pipe (3), described gas generating system comprises airtight container (5), heating arrangement (6) and alcoholic solution (7), alcoholic solution (7) is provided with in airtight container (5), the outlet side of draft tube (2) is arranged under alcoholic solution (7) liquid level, described gas generating system is connected with alcohol content of exhalation gas detector (4) by escape pipe (3), the inlet end of described escape pipe (3) is arranged on alcoholic solution (7) liquid level, heating arrangement (6) is provided with in described airtight container (5), heating arrangement (6) heating alcoholic solution (7).
2. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: described alcoholic solution (7) forms for purity of alcohol standard substance and distilled water configure.
3. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: described source of the gas (1) is bottled pure air.
4. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: described draft tube (2) and escape pipe (3) are polyfluortetraethylene pipe.
5. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: described from source of the gas (1) to airtight container (5) draft tube (2) be disposed with flow controller (8) and pressure controller (9).
6. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: described escape pipe (3) is provided with filtrator (10).
7. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: be provided with stirrer (11) in described airtight container (5).
8. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: described airtight container (5) is provided with temperature controller (12).
9. alcohol content of exhalation gas detector calibrating installation according to claim 1, is characterized in that: described airtight container (5) is provided with gas circuit timer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551228.XA CN104280558A (en) | 2014-10-17 | 2014-10-17 | Calibrating device for exhaled gas alcohol content detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410551228.XA CN104280558A (en) | 2014-10-17 | 2014-10-17 | Calibrating device for exhaled gas alcohol content detector |
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| CN201410551228.XA Pending CN104280558A (en) | 2014-10-17 | 2014-10-17 | Calibrating device for exhaled gas alcohol content detector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106290928A (en) * | 2016-08-18 | 2017-01-04 | 深圳市大帝酒检信息系统有限公司 | A kind of calibration steps of expiration alcohol tester |
| CN106526153A (en) * | 2015-12-15 | 2017-03-22 | 深圳安维森实业有限公司 | Alcohol gas concentration calibration device |
| CN107192833A (en) * | 2017-07-11 | 2017-09-22 | 深圳市好美达科技有限公司 | Alcohol content tester calibrating installation and alcohol content tester calibration method |
| CN108680711A (en) * | 2018-08-23 | 2018-10-19 | 青岛睿诺环境科技有限公司 | The calibrating apparatus and assay calibration method of alcohol content of exhalation gas detector |
| CN110806554A (en) * | 2019-11-11 | 2020-02-18 | 广西电网有限责任公司桂林供电局 | Calibration method of PVC cable gas detector |
| CN114428176A (en) * | 2022-01-11 | 2022-05-03 | 河南省计量科学研究院 | Precision detection device of alcohol testing instrument |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526153A (en) * | 2015-12-15 | 2017-03-22 | 深圳安维森实业有限公司 | Alcohol gas concentration calibration device |
| CN106290928A (en) * | 2016-08-18 | 2017-01-04 | 深圳市大帝酒检信息系统有限公司 | A kind of calibration steps of expiration alcohol tester |
| CN106290928B (en) * | 2016-08-18 | 2017-12-19 | 深圳市大帝酒检信息系统有限公司 | A kind of calibration method of expiration alcohol tester |
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| CN108680711A (en) * | 2018-08-23 | 2018-10-19 | 青岛睿诺环境科技有限公司 | The calibrating apparatus and assay calibration method of alcohol content of exhalation gas detector |
| CN110806554A (en) * | 2019-11-11 | 2020-02-18 | 广西电网有限责任公司桂林供电局 | Calibration method of PVC cable gas detector |
| CN110806554B (en) * | 2019-11-11 | 2021-08-13 | 广西电网有限责任公司桂林供电局 | Calibration method of PVC cable gas detector |
| CN114428176A (en) * | 2022-01-11 | 2022-05-03 | 河南省计量科学研究院 | Precision detection device of alcohol testing instrument |
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Application publication date: 20150114 |