CN201417249Y - Plug-in type on-line gas analysis system that can be calibrated automatically - Google Patents
Plug-in type on-line gas analysis system that can be calibrated automatically Download PDFInfo
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- CN201417249Y CN201417249Y CN 200920172631 CN200920172631U CN201417249Y CN 201417249 Y CN201417249 Y CN 201417249Y CN 200920172631 CN200920172631 CN 200920172631 CN 200920172631 U CN200920172631 U CN 200920172631U CN 201417249 Y CN201417249 Y CN 201417249Y
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Abstract
The present utility model discloses a plug-in type on-line gas analysis system that can be calibrated automatically. The gas analysis system comprises an emitting/receiving apparatus [1], a measuringprobe [12] and a calibration apparatus which consists of a sample pool [2], a light reflection apparatus [3], an elevator apparatus and a standard air source [11], the sample pool [2] and the light reflection apparatus [3] are fixed in the housing [6] of the calibration apparatus by the elevator apparatus, extends into a pipeline [19] through the elevator apparatus and are positioned on the lightpath, the light reflection apparatus [3] is positioned at the back end of the light path of the sample pool [2], and the sample pool [2] is provided with inlet and outlet pipes [4, 9] leading to the external part of the housing [6] of the calibration apparatus. The gas analysis system of the utility model has a simple structure, the calibration apparatus will not be eroded by flue gas, therefore,the gas analysis system can work reliably for a long time; a real time on-line automatic calibration can also be realized by the gas analysis system.
Description
Technical field
The utility model relates to plug-in on-line gas analysis system, particularly a kind of plug-in on-line gas analysis system with automatic calibrating function.
Background technology
Plug-in on-line gas analysis system is different with traditional extraction sampling method gas analysis system, it does not need sampling and gas preprocessing process, a lot of defectives of traditional extraction sampling method gas analysis system have been overcome, have advantages such as simple in structure, stable, that measurement is quick, precision is high, operation and maintenance cost is low, use more and more widely in fields such as environmental monitoring, industrial process analyses.Plug-in on-line gas analysis system can adopt multiple absorption spectrum technology such as differential optical absorption spectrum (DOAS) technology, tunable semiconductor laser absorption spectrum (TDLAS) technology to realize.
Common a kind of plug-in on-line gas analysis system comprises the light transmission/reception, and signal acquisition process and analytical equipment, plug-in type measuring sonde.On chimney (road), open a hole, welded mounting flange, then measuring sonde is inserted chimney (road), and be fixed on the flange, light emission/optical pickup apparatus is fixed on the probe by physical construction, and the probe front end is equipped with corner reflector, and the opening (measured zone) that allows tested gas pass through is arranged on the probe, for guaranteeing catoptron not by pollutions such as dust, drops, system is furnished with the purification blow device.Owing to have the probe of opening to be installed in the chimney (road), therefore be difficult to realize to the particularly on-line automatic calibration of the on-line calibration of system.
U.S. US5517314 patent disclosure a kind of plug-in on-line gas analysis system with on-line proving function, comprise Optical Transmit Unit, demarcation and measurement pipeline, light receiving unit and analytic unit.The course of work is as follows: the light that light source sends is reflected into two bundle directional lights through two concave mirrors: demarcate light beam and measuring beam, respectively by calibrating tube and measuring tube, reflect into optical receiver through two concave mirrors, deliver to analytic unit analysis by optical fiber afterwards.Demarcating the outside marked gas chamber of tested flue on the light path, chamber also can be placed in the tested gas piping and the demarcation light beam is passed through, and zero gas or calibrating gas charge into chamber by valve control, and sweep gas feeds by ventilating joint and measures passage; When the needs timing signal, the computer control motor is placed on shelter and measures on the light path, opens valve, charges into zero gas or gas at chamber, demarcates the light of light path and sends into analytic unit by receiver.During measurement, the computer control motor is placed on shelter and demarcates on the light path, and measuring beam is sent into analytic unit by receiver.This patented technology can realize on-line automatic demarcation, but constructional device complexity, require very high to machining and assembly precision, become two bundle directional lights such as emission light through the concave mirror back reflection, enter a receiving trap by the concave mirror reflection again at this two bundles directional light of light receiving unit, particularly under the complex environment of chimney inside, this can cause makes complicated, cost rising, and the Installation and Debugging difficulty is big.
Also has the mode that plug-in type measuring sonde opening portion is opened wide or seals that adopts in addition, make tested gas enter and measure light path or marked gas is charged into closed optical path, thereby realize normally measuring or demarcating, this method is because in the chimney of the pop one's head in high temperature that is in complexity, high dust, highly corrosive, movable part on the feasible probe is corroded easily and is stopped up, and causes movable part reliably working for a long time.
Summary of the invention
The utility model provides a kind of plug-in on-line gas analysis system with automatic calibrating function, has overcome to have shortcomings such as online gas analysis system processing and manufacturing complexity, Installation and Debugging difficulty with automatic calibrating function are big now.
The technical solution adopted in the utility model is: a kind of plug-in on-line gas analysis system with automatic calibrating function, comprise light transmission/reception and measuring sonde, it also comprises a caliberating device, by sample cell, light reflecting device, jacking gear and standard source of the gas are formed, peripheral sealing is housed on the pipeline of the logical light path between light transmission/reception and the measuring sonde, the caliberating device housing that two ends communicate with connecting tube, sample cell and light reflecting device are fixed in the caliberating device housing by jacking gear, sample cell and light reflecting device extend in the pipeline by jacking gear and place on the light path, light reflecting device is positioned at the light path rear end of sample cell, sample cell has into, escape pipe leads to the caliberating device outside, wherein, draft tube communicates with the standard source of the gas.Need timing signal, sample cell and light reflecting device are risen up on the ducted measurement light path and can demarcate by jacking gear.After demarcate finishing, sample cell and light reflecting device shifted out measure light path and can carry out normal gas analysis.
Described caliberating device is made up of sample cell, stepper motor, solenoid valve, gas piping and calibrating gas etc., by manual or automated manner, control motor-driven sample cell moves in the light path or leaves light path, thereby makes system enter automatic demarcation state or measurement state.Have view window on the described caliberating device housing, can check the position of sample cell at any time;
Described caliberating device is located at light emitted/receiving trap and purges between the gas port, can avoid cleaning the pollution of gas to caliberating device.
As preferably, described calibration sample pond inlet, outlet pipeline lays respectively at the sample cell two ends.
For the ease of observing the lifting position of caliberating device, have transparent windows on the caliberating device housing.
Compare with existing plug-in on-line gas analysis system with automatic calibrating function, benefit of the present utility model is: (1) device is simple, demarcates pipeline and is in measurement pipeline inside; (2) caliberating device is positioned at the chimney outside, can not be subjected to the corrosion of flue gas, can work reliably and with long-term; (3) can accomplish that real-time online demarcates automatically; (4) sample cell can disassembling of aspect clean.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model plug-in on-line gas analysis system for ultraviolet difference spectrum (DOAS) gas analysis system, comprises light transmission/reception 1 and caliberating device and measuring sonde 12.Described measuring sonde 12 is installed on the tested pipeline 17 by flange 15, having measuring flume 16 on measuring sonde 12 passes through for tested gas, light reflecting device 13 is installed in measuring sonde 12 foremost, pipe 14 in the inside of measuring sonde 12 is equipped with, and an end is equipped with sweep gas inlet 18 outside tested pipeline.
Caliberating device is by sample cell 2, light reflecting device 3 and jacking gear are formed, jacking gear is made up of lift supporting rod 7 and motor 5, pipeline 19 belows of the logical light path between light transmission/reception 1 and the measuring sonde 12 are provided with a sealing, the caliberating device housing 6 that communicates with connecting tube 19, sample cell 2 and light reflecting device 3 are fixed on caliberating device housing 6 inside by jacking gear, jacking gear is made up of motor 5 and lift supporting rod 7, sample cell 2 and light reflecting device 3 are fixed on lift supporting rod 7 upper ends, sample cell 2 two ends are connected with leads to draft tube 4 and the escape pipe of installing outside the housing 69, draft tube 4 communicates with standard source of the gas 11, solenoid valve 10 is housed on the draft tube 4, and standard source of the gas 11 comprises zero gas 11a and standard gas 11b.On caliberating device housing 6, have transparent windows 8.Control device control motor 5 work by system, can realize the rising and the decline of lift supporting rod 7, and drive sample cell 2 and light reflecting device 3 risings and decline, open and closure with timed unit control electromagnetic valve 10, can feed standard gas 11b or zero gas 11a to sample cell 2 by air inlet pipeline 4.
The course of work of above-mentioned gas analytic system is: the measuring beam that light emitting devices sends is reflected by light reflecting device 13 after passing the inside of inside, measuring sonde 12 and the interior pipe 14 of caliberating device 6, tested gas, pass the inside of tested gas, measuring sonde 12 and interior pipe 14 afterwards, the inside of caliberating device 6 enters optical pickup apparatus at last, signal is delivered to APU by optical pickup apparatus then.For guaranteeing light reflecting device 13, purge protection from purging the clean pressure gas of gas port 18 feedings not by smoke contamination.
During measurement, control device control motor 5 descends sample cell 2 and light reflecting device 3, make sample cell 2 and light reflecting device 3 be in the outside of light path fully, the measuring beam that light emitting devices sends is reflected by light reflecting device 13 after passing the inside of inside, measuring sonde 12 and the interior pipe 14 of caliberating device 6, tested gas, pass the inside of tested gas, measuring sonde 12 and interior pipe 14 afterwards, the inside of caliberating device 6 enters optical pickup apparatus at last, signal is delivered to APU by optical pickup apparatus then.
Timing signal, control device control motor 5 rises to measurement light path central authorities with sample cell 2 and light reflecting device 3, make sample cell 2 and light reflecting device 3 shelter from measuring beam fully, the measuring beam that light emitting devices sends passes the inside of sample cell 2, through light reflecting device 3 reflections, pass the inside of sample cell 2 afterwards again and reflex to optical pickup apparatus, signal is delivered to APU by optical pickup apparatus then.Open with timed unit control electromagnetic valve 10, the zero gas 11a of standard source of the gas 11 enters sample cell 2 by admission line 4 and is discharged to outdoorly through outlet pipe 9, and zero gas finally is full of sample cell 2, then to system's operation of returning to zero; Control electromagnetic valve 10 subsequently, and standard gas 11b enters sample cell 2 by admission line 4 and is discharged to outdoorly through outlet pipe 9, and standard gas finally is full of sample cell 2, then system is carried out proving operation.
After demarcation was finished, control device control motor 5 dropped to sample cell 2 beyond the measurement light path, and system enters normal measurement state.
Claims (4)
1, automatically-calibrated plug-in on-line gas analysis system, comprise light transmission/reception [1] and measuring sonde [12], it is characterized in that it also comprises a caliberating device, by sample cell [2], light reflecting device [3], jacking gear and standard source of the gas [11] are formed, the pipeline [19] of the logical light path between light transmission/reception [1] and the measuring sonde [12] is provided with a sealing, the caliberating device housing [6] that communicates with connecting tube [19], sample cell [2] and light reflecting device [3] are fixed on caliberating device housing [6] inside by jacking gear, sample cell [2] and light reflecting device [3] extend in the pipeline [19] by jacking gear and place on the light path, light reflecting device [3] is positioned at the light path rear end of sample cell [2], sample cell [2] has into, escape pipe [4,9] lead to caliberating device housing [6] outside, wherein, draft tube [4] communicates with standard source of the gas [11].
2, automatically-calibrated plug-in on-line gas analysis system according to claim 1 is characterized in that caliberating device is located between light transmission/reception [1] and the purging gas port [18].
3, automatically-calibrated plug-in on-line gas analysis system according to claim 2 is characterized in that described calibration sample pond lays respectively at sample cell [2] two ends into and out of tracheae [4,9].
4,, it is characterized in that having on the caliberating device housing [6] transparent windows [8] according to claim 1 or 2 or 3 described automatically-calibrated plug-in on-line gas analysis systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920172631 CN201417249Y (en) | 2009-06-18 | 2009-06-18 | Plug-in type on-line gas analysis system that can be calibrated automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920172631 CN201417249Y (en) | 2009-06-18 | 2009-06-18 | Plug-in type on-line gas analysis system that can be calibrated automatically |
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| Publication Number | Publication Date |
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| CN201417249Y true CN201417249Y (en) | 2010-03-03 |
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| CN 200920172631 Expired - Lifetime CN201417249Y (en) | 2009-06-18 | 2009-06-18 | Plug-in type on-line gas analysis system that can be calibrated automatically |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929947B (en) * | 2009-06-18 | 2012-01-11 | 安徽蓝盾光电子股份有限公司 | Automatically-calibrated plug-in on-line gas analysis system |
| CN103900980A (en) * | 2014-04-15 | 2014-07-02 | 安徽蓝盾光电子股份有限公司 | Full-automatic calibration control system for long-optical distance DOAS (Differential Optical Absorption Spectroscopy) gas analyzer and calibration method thereof |
| CN104655567A (en) * | 2015-03-19 | 2015-05-27 | 重庆川仪分析仪器有限公司 | Ultraviolet gas analysis device capable of being automatically calibrated |
| CN106662528A (en) * | 2015-09-02 | 2017-05-10 | 富士电机株式会社 | Analysis device and exhaust gas treatment device |
| CN116223135A (en) * | 2023-05-05 | 2023-06-06 | 南京科力赛克安全设备有限公司 | Integrated sampling equipment convenient to operate and sampling method thereof |
-
2009
- 2009-06-18 CN CN 200920172631 patent/CN201417249Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929947B (en) * | 2009-06-18 | 2012-01-11 | 安徽蓝盾光电子股份有限公司 | Automatically-calibrated plug-in on-line gas analysis system |
| CN103900980A (en) * | 2014-04-15 | 2014-07-02 | 安徽蓝盾光电子股份有限公司 | Full-automatic calibration control system for long-optical distance DOAS (Differential Optical Absorption Spectroscopy) gas analyzer and calibration method thereof |
| CN103900980B (en) * | 2014-04-15 | 2016-10-05 | 安徽蓝盾光电子股份有限公司 | Full automatic calibration control system and scaling method thereof for long light path DOAS gas analyser |
| CN104655567A (en) * | 2015-03-19 | 2015-05-27 | 重庆川仪分析仪器有限公司 | Ultraviolet gas analysis device capable of being automatically calibrated |
| CN104655567B (en) * | 2015-03-19 | 2017-11-10 | 重庆川仪分析仪器有限公司 | The ultraviolet gas analyzing apparatus that can be calibrated automatically |
| CN106662528A (en) * | 2015-09-02 | 2017-05-10 | 富士电机株式会社 | Analysis device and exhaust gas treatment device |
| CN106662528B (en) * | 2015-09-02 | 2021-02-05 | 富士电机株式会社 | Analysis device and exhaust gas treatment device |
| CN116223135A (en) * | 2023-05-05 | 2023-06-06 | 南京科力赛克安全设备有限公司 | Integrated sampling equipment convenient to operate and sampling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100303 Effective date of abandoning: 20090618 |