CN102435549A - Flue gas mercury analyzer - Google Patents
Flue gas mercury analyzer Download PDFInfo
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- CN102435549A CN102435549A CN2011102754103A CN201110275410A CN102435549A CN 102435549 A CN102435549 A CN 102435549A CN 2011102754103 A CN2011102754103 A CN 2011102754103A CN 201110275410 A CN201110275410 A CN 201110275410A CN 102435549 A CN102435549 A CN 102435549A
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Abstract
The invention provides a mercury analyzer comprising an ultraviolet lamp (1), a measuring tank (4), and a reference tank (3). A dual-beam generator is arranged at the center of the ultraviolet lamp (1), the measuring tank (4), and the reference tank (3). A flue gas pipeline sequentially penetrates the measuring tank (4) and the reference tank (3). A mercury absorber (7) filled with mercury absorbent is arranged on the flue gas pipeline and between the measuring tank (4) and the reference tank (3). A first photoelectric sensor (5) is arranged at a light beam outlet side of the measuring tank (4), wherein the first photoelectric sensor (5) transmits measuring signals; a second photoelectric sensor (6) is arranged at a light beam outlet side of the reference tank (3), wherein the second photoelectric sensor (6) transmits reference signals. The first photoelectric sensor (5) and the second photoelectric sensor (6) are connected with a central processor (8) used for receiving the measuring signals and the reference signals, and for carrying out differentiation processing upon the signals to obtain the mercury concentration. With the analyzer, the influences of other components on the mercury detection result are avoided during the detection process.
Description
Technical field
The present invention relates to the flue gas monitoring technical field, more particularly, relate to a kind of flue gas mercury analyzer.
Background technology
Mercury is one of pollutant of health risk in the atmosphere, and its main source has nature to form (like volcanic explosion, soil discharging etc.) and artificial burning (for example mercury smelting) to ore.In China, the exhaust of coal-burning power plant becomes one of maximum mercury emissions pollution source.Because mercury has very big harm to physical environment and health, therefore the mercury emissions data in the pollution source are monitored, become the task of top priority.
In the method for existing various survey mercury, the most commonly used is cold atomic absorption spectrometry and Cold Atomic Fluorescent Mercury spectroscopic methodology.Wherein cold atomic absorption spectrometry be through pretreatment system with after the mercury of oxidation state is converted into element state mercury in the flue gas of sampling, through measuring the absorption of mercury, confirm mercury content to the particular radiation place.
Please refer to accompanying drawing 1, the figure shows the structure of the flue gas mercury analyzer that provides in the prior art.The concrete course of work of this flue gas mercury analyzer is: the flue gas 01 in the flue is transferred in the catalytic reactor 04 through sampling pipeline 03 through sampling probe 02; Oxidation state mercury in catalytic reactor 04 inner flue gas is reduced to element state mercury, detects through gas cell 07 (through gas feed 071 and gas vent 072) through Dehumidifying element 05 stream more subsequently.The ultraviolet light that uviol lamp 06 sends incides in the gas cell 07 and is caused optical energy attenuation by the absorption of the mercury in the flue gas; The variation of luminous energy is received by photoelectric sensor 08 and is converted into electric signal, enters into central processing unit 09 and handles the back and carry out the result through display device 010 and show.
But, in the above-mentioned observation process, other compositions in the flue gas (for example NO, SO
2, NH
3Deng) luminous energy that also can absorb and then cause the decay of luminous energy, this kind result to cause photoelectric sensor 08 to receive to ultraviolet light changes not is to have only mercury to cause, and finally causes the content monitoring of mercury inaccurate.
Therefore, how a kind of flue gas mercury analyzer is provided, avoiding in the mercury observation process, other composition gases are present those skilled in the art's problem demanding prompt solutions to the influence of mercury monitoring result.
Summary of the invention
In view of this, the invention provides a kind of flue gas mercury analyzer, avoiding in the mercury observation process, other composition gases are to the influence of mercury monitoring result.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of flue gas mercury analyzer comprises:
Uviol lamp, measuring cell, reference cell;
Be arranged on the twin-beam generation device between said uviol lamp and said measuring cell and the reference cell;
Pass the flue gas pipeline of said measuring cell and said reference cell successively, and the upper position between said measuring cell and reference cell of this flue gas pipeline is provided with the mercury absorber that is filled with the mercury absorbing agent;
The light that is arranged on said measuring cell passes first photoelectric sensor of side, and it sends measuring-signal;
The light that is arranged on said reference cell passes second photoelectric sensor of side, and it sends reference signal;
Link to each other with second photoelectric sensor with said first photoelectric sensor, receive said measuring-signal and said reference signal, and both are carried out drawing after the difference processing central processing unit of mercury concentration.
Preferably, in the above-mentioned flue gas mercury analyzer, said twin-beam generation device is a dividing plate, and it is provided with respectively and said measuring cell and corresponding two transmissive slits of reference cell.
Preferably, in the above-mentioned flue gas mercury analyzer, said dividing plate is straight plate, and the light that from two said transmissive slits, passes is parallel to each other.
Preferably, in the above-mentioned flue gas mercury analyzer, said twin-beam generation device is a half-reflecting half mirror.
Preferably, in the above-mentioned flue gas mercury analyzer, said central processing unit is the PLC processor.
Preferably, in the above-mentioned flue gas mercury analyzer, said mercury absorbing agent is iodine activated charcoal, spun gold or golden film.
Preferably, in the above-mentioned flue gas mercury analyzer, also be provided with dehumidifier between the sampling probe of this flue gas mercury analyzer and the said measuring cell.
The course of work of flue gas mercury analyzer provided by the invention is following:
Behind the light process twin-beam generation device of uviol lamp; Form the two-beam line; This two-beam line passes measuring cell and reference cell respectively, and the flue gas pipeline passes measuring cell and reference cell successively, and flue gas is absorbed when in the process of operation, passing through the mercury absorber between measuring cell and the reference cell; First photoelectric sensor that the light that is arranged on measuring cell passes side detects passing light; This first photoelectric sensor sends measuring-signal; The light that is arranged on reference cell passes second photoelectric sensor of side; Signal is sent in its induction that receives reference cell to pass light, and central processing unit carries out drawing mercury concentration after the difference processing to both after receiving measuring-signal and reference signal.
Can draw through the above-mentioned course of work, the difference of measuring-signal and reference signal is exactly the signal of the ultraviolet light generation of mercury absorption, through drawing the concentration of mercury after the central processing unit difference processing.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the flue gas mercury analyzer that Fig. 1 provides for prior art;
The structural representation of the flue gas mercury analyzer that Fig. 2 provides for the embodiment of the invention.
Among last Fig. 1-2:
Uviol lamp 1, dividing plate 2, transmissive slit 21, reference cell 3, measuring cell 4, first photoelectric sensor 5, second photoelectric sensor 6, mercury absorber 7, central processing unit 8, display device 9.
Thick arrow is a light among Fig. 2, and thin arrow is the sampling pipeline.
Embodiment
The invention provides a kind of flue gas mercury analyzer, avoided in the mercury testing process, other compositions are to the influence of mercury testing result.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Please refer to accompanying drawing 2, the structural representation of the flue gas mercury analyzer that Fig. 2 provides for the embodiment of the invention.
The flue gas mercury analyzer that the embodiment of the invention provides; Comprise: uviol lamp 1, measuring cell 4, reference cell 3, twin-beam generation device, flue gas pipeline, mercury absorber 7, first photoelectric sensor 5, second photoelectric sensor 6, central processing unit 8 and display device 9, wherein:
The twin-beam generation device is arranged between uviol lamp 1 and measuring cell 4 and the reference cell 3, and main effect is to produce two bundle ultraviolet lights;
The flue gas pipeline passes measuring cell 4 and reference cell 3 successively, and mercury absorber 7 is arranged on the flue gas pipeline on position between measuring cell 4 and the reference cell 3, and its effect is that the mercury in the flue gas is absorbed, and goes the flue gas behind the mercury to enter into reference cell 3 so that make;
The two bundle ultraviolet lights that process twin-beam generation device forms pass measuring cell 4 respectively and pass side with the light that reference cell 3, the first photoelectric sensors 5 are arranged on measuring cell 4, and absorb the light that from measuring cell 4, passes and send measuring-signal;
The light that second photoelectric sensor 6 is arranged on reference cell 3 passes side, and absorbs the light that from reference cell 3, passes and send reference signal;
The course of work of flue gas mercury analyzer provided by the invention is following:
Behind the light process twin-beam generation device of uviol lamp; Form the two-beam line; This two-beam line passes measuring cell 4 and reference cell 3 respectively, and the flue gas pipeline passes measuring cell 4 and reference cell 3 successively, and flue gas is absorbed when in the process of operation, passing through the mercury absorber 7 between measuring cell 4 and the reference cell 3; 5 pairs of first photoelectric sensors that the light that is arranged on measuring cell 4 passes side pass light and detect; This first photoelectric sensor 5 sends measuring-signal; The light that is arranged on reference cell 3 passes second photoelectric sensor 6 of side; Signal is sent in its induction that receives reference cell 3 to pass light, and central processing unit 8 carries out drawing mercury concentration after the difference processing to both after receiving measuring-signal and reference signal, and display device 9 shows mercury concentration numerical value.
Can draw through the above-mentioned course of work, the difference of measuring-signal and reference signal is exactly the signal of the ultraviolet light generation of mercury absorption, through drawing the concentration of mercury after the central processing unit difference processing.
The gas that is based in the present embodiment in the flue gas can absorb the energy of ultraviolet light, causes the weak of its light intensity, according to langbobier law, can draw the proportionate relationship of decay and flue gas concentration, can draw the concentration of mercury through difference processing.
In the flue gas mercury analyzer in the embodiment of the invention; It is to produce the two-beam line that the twin-beam generation device mainly acts on, and realizes that the device of above-mentioned effect has a lot, can adopt half-reflecting half mirror; Also can adopt the mode that transmissive slit is set on the dividing plate; Concrete, above-mentioned twin-beam generation device is a dividing plate 2, and this dividing plate 2 is provided with respectively and measuring cell 4 and reference cell 3 corresponding two transmissive slits 21.Preferably, aforementioned barriers 2 is straight plate, and the light that from two transmissive slits 21, passes is parallel to each other, and is as shown in Figure 2.
Preferably, above-mentioned central controller 8 adopts the PLC processor.
In the flue gas mercury analyzer that provides in the foregoing description, the mercury absorbing agent in the mercury absorber 7 is iodine acticarbon, spun gold or golden film etc.
Flue gas in the foregoing description need carry out pre-service before entering into measuring cell 4, also be provided with dehumidifier between the sampling probe of this flue gas mercury analyzer and the measuring cell 4.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. a flue gas mercury analyzer is characterized in that, comprising:
Uviol lamp (1), measuring cell (4), reference cell (3);
Be arranged on the twin-beam generation device between said uviol lamp (1) and said measuring cell (4) and the reference cell (3);
Pass the flue gas pipeline of said measuring cell (4) and said reference cell (3) successively, and the upper position between said measuring cell (4) and reference cell (3) of this flue gas pipeline is provided with the mercury absorber (7) that is filled with the mercury absorbing agent;
The light that is arranged on said measuring cell (4) passes first photoelectric sensor (5) of side, and it sends measuring-signal;
The light that is arranged on said reference cell (3) passes second photoelectric sensor (6) of side, and it sends reference signal;
Link to each other with second photoelectric sensor (6) with said first photoelectric sensor (5), receive said measuring-signal and said reference signal, and both are carried out drawing after the difference processing central processing unit (8) of mercury concentration.
2. flue gas mercury analyzer according to claim 1 is characterized in that, said twin-beam generation device is dividing plate (2), and it is provided with respectively and said measuring cell (4) and corresponding two transmissive slits of reference cell (3) (21).
3. flue gas mercury analyzer according to claim 2 is characterized in that, said dividing plate (2) is straight plate, and the light that from two said transmissive slits (21), passes is parallel to each other.
4. flue gas mercury analyzer according to claim 1 is characterized in that, said twin-beam generation device is a half-reflecting half mirror.
5. according to any described flue gas mercury analyzer among the claim 1-4, it is characterized in that said central processing unit (8) is the PLC processor.
6. flue gas mercury analyzer according to claim 5 is characterized in that, said mercury absorbing agent is iodine activated charcoal, spun gold or golden film.
7. flue gas mercury analyzer according to claim 1 is characterized in that, also is provided with dehumidifier between the sampling probe of this flue gas mercury analyzer and the said measuring cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102754103A CN102435549A (en) | 2011-09-16 | 2011-09-16 | Flue gas mercury analyzer |
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|---|---|---|---|
| CN2011102754103A CN102435549A (en) | 2011-09-16 | 2011-09-16 | Flue gas mercury analyzer |
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| CN102435549A true CN102435549A (en) | 2012-05-02 |
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| CN2011102754103A Pending CN102435549A (en) | 2011-09-16 | 2011-09-16 | Flue gas mercury analyzer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998268A (en) * | 2012-11-22 | 2013-03-27 | 中科天融(北京)科技有限公司 | Smoke mercury online monitoring instrument |
| CN103487553A (en) * | 2013-09-09 | 2014-01-01 | 华中科技大学 | Method and device for continuously measuring mercury in hydrocarbon-containing gas |
| CN104749438A (en) * | 2015-04-17 | 2015-07-01 | 管亮 | Differential impedance spectrum detection system and method |
| CN105158298A (en) * | 2015-06-03 | 2015-12-16 | 中国人民解放军后勤工程学院 | Oil liquid quality detection method and system |
| CN106970035A (en) * | 2017-03-29 | 2017-07-21 | 东南大学 | The signal processing method of coal steam-electric plant smoke mercury concentration is measured based on CVAFS methods |
| CN107462557A (en) * | 2017-07-31 | 2017-12-12 | 贵州民族大学 | A kind of power plant's Mercury In The Air detection method |
| CN109596546A (en) * | 2018-12-15 | 2019-04-09 | 力合科技（湖南）股份有限公司 | Mercury filters eliminating machine by washing, mercury analyzer and analysis method |
| CN109839472A (en) * | 2019-02-01 | 2019-06-04 | 北京雪迪龙科技股份有限公司 | A kind of portable gas mercury monitoring system and monitoring method |
| CN110658133A (en) * | 2019-10-21 | 2020-01-07 | 北京雪迪龙科技股份有限公司 | Detection system and detection method for mercury in gas |
| CN110793817A (en) * | 2019-11-05 | 2020-02-14 | 北京雪迪龙科技股份有限公司 | Sampling probe rod for portable analyzer and portable analyzer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512500A (en) * | 1978-07-12 | 1980-01-29 | Yokogawa Hewlett Packard Ltd | Partial pressure meter of oxygen |
| CN101482506A (en) * | 2008-01-10 | 2009-07-15 | 江苏江分电分析仪器有限公司 | Mercury content measuring method and device |
| CN101506646A (en) * | 2006-08-23 | 2009-08-12 | 丰田自动车株式会社 | Gas analyzing device and gas analyzing method |
-
2011
- 2011-09-16 CN CN2011102754103A patent/CN102435549A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5512500A (en) * | 1978-07-12 | 1980-01-29 | Yokogawa Hewlett Packard Ltd | Partial pressure meter of oxygen |
| CN101506646A (en) * | 2006-08-23 | 2009-08-12 | 丰田自动车株式会社 | Gas analyzing device and gas analyzing method |
| CN101482506A (en) * | 2008-01-10 | 2009-07-15 | 江苏江分电分析仪器有限公司 | Mercury content measuring method and device |
Non-Patent Citations (1)
| Title |
|---|
| 邢巍巍灯: "《RA-915+型汞分析仪测定海水中的总汞》", 《环境保护与循环经济》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998268A (en) * | 2012-11-22 | 2013-03-27 | 中科天融(北京)科技有限公司 | Smoke mercury online monitoring instrument |
| CN103487553A (en) * | 2013-09-09 | 2014-01-01 | 华中科技大学 | Method and device for continuously measuring mercury in hydrocarbon-containing gas |
| CN103487553B (en) * | 2013-09-09 | 2016-04-13 | 华中科技大学 | The method for continuous measuring of mercury and device in a kind of hydrocarbon-containifirst gas |
| CN104749438A (en) * | 2015-04-17 | 2015-07-01 | 管亮 | Differential impedance spectrum detection system and method |
| CN104749438B (en) * | 2015-04-17 | 2017-11-10 | 中国人民解放军后勤工程学院 | A kind of differential type impedance spectrum detecting system and method |
| CN105158298A (en) * | 2015-06-03 | 2015-12-16 | 中国人民解放军后勤工程学院 | Oil liquid quality detection method and system |
| CN106970035A (en) * | 2017-03-29 | 2017-07-21 | 东南大学 | The signal processing method of coal steam-electric plant smoke mercury concentration is measured based on CVAFS methods |
| CN107462557A (en) * | 2017-07-31 | 2017-12-12 | 贵州民族大学 | A kind of power plant's Mercury In The Air detection method |
| CN109596546A (en) * | 2018-12-15 | 2019-04-09 | 力合科技（湖南）股份有限公司 | Mercury filters eliminating machine by washing, mercury analyzer and analysis method |
| CN109839472A (en) * | 2019-02-01 | 2019-06-04 | 北京雪迪龙科技股份有限公司 | A kind of portable gas mercury monitoring system and monitoring method |
| CN110658133A (en) * | 2019-10-21 | 2020-01-07 | 北京雪迪龙科技股份有限公司 | Detection system and detection method for mercury in gas |
| CN110793817A (en) * | 2019-11-05 | 2020-02-14 | 北京雪迪龙科技股份有限公司 | Sampling probe rod for portable analyzer and portable analyzer |
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Application publication date: 20120502 |