CN103018164B - Automatic cleaning and zero setting system for light ion organic volatile gas detector - Google Patents
Automatic cleaning and zero setting system for light ion organic volatile gas detector Download PDFInfo
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- CN103018164B CN103018164B CN201210518374.3A CN201210518374A CN103018164B CN 103018164 B CN103018164 B CN 103018164B CN 201210518374 A CN201210518374 A CN 201210518374A CN 103018164 B CN103018164 B CN 103018164B
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Abstract
The invention discloses an automatic cleaning and zero setting system of a light ion organic volatile gas detector, which comprises an air pump, an ion chamber, an ion lamp, an air filter, an electromagnetic valve and a microprocessor, wherein the air pump, the ion chamber and the ion lamp are arranged on an installation plate; the air filter consists of a VOC sampling filter and a field cleaning zero setting filter, and the VOC sampling filter and the field cleaning zero setting filter respectively correspond to a gas output channel. The invention can automatically remove the dirt attached to the light outlet of the ultraviolet lamp in the ion chamber by the light ion organic volatile gas detector, and avoid the inconvenience of disassembling the instrument and manually removing the dirt. And the detector can automatically calibrate the zero point at regular intervals. After the detector is free from maintenance for a long time, the accuracy of a detection result can be still kept, and the detector is more intelligent.
Description
Technical field
The invention relates to high-accuracy intelligent instrumentation field, more particularly, the photoion organic volatile gas detector relating to a kind of ion lamp comprising the air pump be installed on installing plate, ion chamber and be located in ion chamber cleans and zero-setting system automatically.
Background technology
At present, the mode that the photoion organic volatile gas detector product on market generally adopts pump to inhale extracts sample gas and detects.In severe site environment after long-time continuous service, associated components in the ion chamber of one of photoion organic volatile gas sensor critical piece is easily by the impurity absorption in on-the-spot air, especially sending ultraviolet light makes the light-emitting window of the Ionized uviol lamp of organic volatile once by impurity absorption, ultraviolet light will be stopped, cause the sensitivity of sensor sharply to decline, affect the accuracy that detector detects greatly.Regularly taking instrument manual removal dirt apart is one of scheme addressed this problem, but in practical application, field stripping is safeguarded very inconvenient.The zero point drift that in sensor, component ageing or other uncontrollable factor cause in addition also can affect the accuracy of detector testing result.
Summary of the invention
The invention technical matters to be solved is, there is provided a kind of and regularly can automatically remove the dirt be attached on photoion organic volatile gas sensor, regularly automatically carry out Zero calibration simultaneously, automatically clean and zero-setting system with the photoion organic volatile gas detector eliminating the zero point drift that some enchancement factors cause.
It is as described below that the invention solves the technical scheme that its technical matters adopts: a kind of photoion organic volatile gas detector cleans and zero-setting system automatically, the ion lamp comprising the air pump be installed on installing plate, ion chamber and be located in ion chamber, it is characterized in that, the solenoid valve also comprising an air strainer and be installed on installing plate and microprocessor, surrounding air is after air strainer, enter ion chamber through air pump again by solenoid valve, microprocessor is used for Controlling solenoid valve.
Further, it is characterized in that, described solenoid valve is three-way solenoid valve, comprises clean air sampling channel and gas output channel after sample gas sampling channel, filtration; Described air strainer is made up of VOC upsampling filter and clean-in-place zeroing filtrator, this VOC upsampling filter and a clean-in-place zeroing filtrator corresponding gas output channel respectively, surrounding air becomes to treat by three-way solenoid valve, sample gas treats that sample gas sampling channel enters ion chamber through air pump more respectively after VOC upsampling filter, surrounding air becomes clean air after clean-in-place zeroing filtrator, after filtering, clean air enters ion chamber through air pump again by sampling channel, for cleaning or automatic zero set (AZS) automatically.
Above-mentioned air pump is diaphragm air pump.
According to the invention of said structure, its beneficial effect is, the dirt that the invention makes photoion organic volatile gas detector can automatically remove in ion chamber and uviol lamp light-emitting window adheres to, and exempts the inconvenience of taking instrument manual removal apart.Also detector regularly automatic Calibration zero point is enable.Detector, after long-term non-maintaining operation, still can keep the accuracy of testing result, more intelligent.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the invention is described further.
Fig. 1 is the invention structural representation.
Embodiment
As shown in Figure 1, a kind of photoion organic volatile gas detector cleans and zero-setting system automatically, the ion lamp 401 comprising the diaphragm air pump 3 be installed on installing plate, ion chamber 4 and be located in ion chamber 4, also comprise an air strainer 1 and the solenoid valve 2 be installed on installing plate and microprocessor (not shown), described solenoid valve 2 is three-way solenoid valve, comprises clean air sampling channel 201 and gas output channel 203 after sample gas sampling channel 202, filtration, described air strainer is made up of VOC upsampling filter 101 and clean-in-place zeroing filtrator 102, this VOC upsampling filter 101 and a clean-in-place zeroing filtrator 102 corresponding gas output channel respectively, surrounding air becomes to treat by three-way solenoid valve, sample gas treats that sample gas sampling channel 202 enters ion chamber 4 through diaphragm air pump 3 more respectively after VOC upsampling filter 101, surrounding air is through clean-in-place zeroing filtrator 102 one-tenth clean air, after filtering, clean air enters ion chamber 4 through diaphragm air pump 3 again by sampling channel 201, for cleaning or automatic zero set (AZS) automatically.
Principle of work and the process of the invention are as described below:
The invention employing three-way solenoid valve constructs two in conjunction with diaphragm air pump 3 and enters a triple channel pump suction gas sampling system out.When detector is detected state, Microprocessor S3C44B0X three-way solenoid valve, makes to treat that sample gas sampling channel 202 is open-minded in two inlet channels, after filtering, clean air sampling channel 201 is closed.When detector enters cleaning or automatic zero set (AZS) state automatically, Microprocessor S3C44B0X three-way solenoid valve, after making the filtration in two inlet channels, clean air sampling channel 201 is open-minded, treats that sample gas sampling channel 202 is closed.Utilize uviol lamp the oxygen ion in clean air to be dissolved to a small amount of oxygen atom come, the dirt of attachment can be washed away, reach the object of cleaning automatically.Also can be regular utilize clean air to carry out automatic zero set (AZS).
Claims (1)
1. a photoion organic volatile gas detector cleans and zero-setting system automatically, comprise the air pump be installed on installing plate, ion chamber and the ion lamp be located in ion chamber, it is characterized in that, the solenoid valve also comprising an air strainer and be installed on installing plate and microprocessor, surrounding air is after air strainer, ion chamber is entered through air pump again by solenoid valve, microprocessor is used for Controlling solenoid valve, described solenoid valve is three-way solenoid valve, comprise and treat sample gas sampling channel, clean air sampling channel and gas output channel after filtering, described air pump is arranged on the gas passage between described solenoid valve and described ion chamber, the outlet passageway of described ion chamber connects the Gas outlet channels on described air strainer, described air strainer is made up of VOC upsampling filter and clean-in-place zeroing filtrator, this VOC upsampling filter and a clean-in-place zeroing filtrator corresponding gas output channel respectively, surrounding air becomes to treat by three-way solenoid valve, sample gas treats that sample gas sampling channel enters ion chamber through air pump again after VOC upsampling filter, then discharge through the Gas outlet channels be arranged on described air strainer, surrounding air becomes clean air after clean-in-place zeroing filtrator, after filtering, clean air enters ion chamber through air pump again by filtering rear clean air sampling channel, for cleaning or automatic zero set (AZS) automatically, then discharge through the Gas outlet channels be arranged on described air strainer,
Described air pump is diaphragm air pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518374.3A CN103018164B (en) | 2012-12-06 | 2012-12-06 | Automatic cleaning and zero setting system for light ion organic volatile gas detector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210518374.3A CN103018164B (en) | 2012-12-06 | 2012-12-06 | Automatic cleaning and zero setting system for light ion organic volatile gas detector |
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| CN103018164A CN103018164A (en) | 2013-04-03 |
| CN103018164B true CN103018164B (en) | 2015-10-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699477A (en) * | 2016-04-20 | 2016-06-22 | 杭州启鲲科技有限公司 | Handheld VOC (volatile organic compounds) detector |
| CN106290308B (en) * | 2016-08-04 | 2023-12-01 | 深圳市诺安智能股份有限公司 | Range self-adaptive VOCs on-line monitoring system and monitoring method |
| CN106092898B (en) * | 2016-08-04 | 2020-12-22 | 深圳市诺安环境安全股份有限公司 | Redundant online photoion analysis system and analysis method thereof |
| US10790070B2 (en) | 2018-09-10 | 2020-09-29 | Savannah River Nuclear Solutions, Llc | Radiation detectors employing contemporaneous detection and decontamination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2800278Y (en) * | 2005-06-08 | 2006-07-26 | 北京金铠星科技有限公司 | Detection gas path of gasoline vehicle exhaust detection system by simple working condition method |
| CN201259491Y (en) * | 2008-09-18 | 2009-06-17 | 北京中科诚毅科技发展有限公司 | Automatic cleaning device for industrial on-line spectrum analyzer probe |
| CN101661014A (en) * | 2009-10-09 | 2010-03-03 | 丁五行 | Residual sample gas cleaning device of electrochemical gas sensor and gas detecting device using same |
| WO2011090433A1 (en) * | 2010-01-19 | 2011-07-28 | R2Cd Holdings Pte Ltd | An auto-cleaning and auto-zeroing system used with a photo-ionization detector |
| CN102662018A (en) * | 2010-11-30 | 2012-09-12 | 中国科学院大连化学物理研究所 | Photo ionization detector |
| CN102072945A (en) * | 2010-12-20 | 2011-05-25 | 上海精密科学仪器有限公司 | Chromatographic photoionization detector |
| CN202166609U (en) * | 2011-06-03 | 2012-03-14 | 天津市蓝宇科工贸有限公司 | Ultraviolet difference smoke density monitoring system using hot wet extraction method |
| CN202289801U (en) * | 2011-09-13 | 2012-07-04 | 深圳市南油诺安电子有限公司 | Air filtering device |
| CN202974838U (en) * | 2012-12-06 | 2013-06-05 | 深圳市南油诺安电子有限公司 | Automatic cleaning and zero setting system for photoion volatile organic matter gas detector |
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Address after: 518000 Shenzhen, Nanshan District, Taoyuan, the streets of the left immortal Avenue, No. 1213, the crown of the industrial zone in the south wing of the District, the 2 floor, building 5, building 2, building 7, building 8 Patentee after: SHENZHEN NUOAN ENVIRONMENTAL & SAFETY INC. Address before: Nanshan District city of Shenzhen province Guangdong Taoyuan street 518000 Liuxian Avenue No. 1213 Zhongguan honghualing Industrial District 2 District 8 Building 5 floor Patentee before: Shenzhen Nanyou Nuoan Electronics Co., Ltd. |
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Address after: 518000 b1-1201, building b1b2, Guangming science and Technology Park, Investment Promotion Bureau, Fenghuang community, Fenghuang street, Guangming District, Shenzhen, Guangdong (business premises are set up in units 5B and 5C, building B6, Guangming science and Technology Park, Investment Promotion Bureau, Fenghuang community, Fenghuang street, Guangming District, Shenzhen to engage in production and business activities) Patentee after: Shenzhen noan intelligent Co.,Ltd. Address before: 518000 5 / F and 7 / F, building 8, block 2, Zhongguan honghualing Industrial South Zone, No. 1213 Liuxian Avenue, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN NUOAN ENVIRONMENTAL & SAFETY Inc. |