CN109342133A - A kind of mercury on-line monitoring system - Google Patents
A kind of mercury on-line monitoring system Download PDFInfo
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- CN109342133A CN109342133A CN201811367964.4A CN201811367964A CN109342133A CN 109342133 A CN109342133 A CN 109342133A CN 201811367964 A CN201811367964 A CN 201811367964A CN 109342133 A CN109342133 A CN 109342133A
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- mercury
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- triple valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of mercury on-line monitoring systems, including sampling unit, zero gas unit, primary dust removing are except water unit, two-stage dust removal are except water unit, triple valve, removal of mercury unit, pump and mercury analyzer；Sampling unit removes water unit, the first interface of triple valve through primary dust removing and connects pump with the third interface of triple valve；Zero gas unit connects pump with the third interface of triple valve except water unit, two-stage dust removal remove water unit, the second interface of triple valve through removal of mercury unit, primary dust removing；Pump connection mercury analyzer.Zero air in mercury on-line monitoring system of the invention has not only carried out final dusting water removal, has also carried out removal of mercury processing, significantly reduces the mercury concentration in zero air.
Description
Technical field
Present invention relates generally to mercury analysis and fields of measurement, and in particular to a kind of mercury on-line monitoring system.
Background technique
Existing mercury on-line monitoring system includes feeler lever, sampling probe, heat traced pipeline, pretreatment unit, solenoid valve, second level
Water-dust removing unit, pump, mercury analyzer etc..When automatic zero adjustment, the gas that electromagnetism Vavle switching takes pumping is changed by sample gas circuit
For air road.Sample gas circuit is in static condition at this time, and the mercury in feeler lever, sampling probe, pipeline in sample gas circuit etc. will do it two
Secondary release.When automatic zero adjustment terminates to restore sampling, the mercury of secondary release can be instantaneously superimposed with sample gas, be improved in sample gas
Mercury concentration, influence testing result.
Zero process of school will have a direct impact on the precision of mercury Concentration Testing.Zero air (clean air) should be used when school zero.
But based on mercury on-line monitoring system is analyzed with spot sampling, during practical school zero, zero air is usually site environment air
Dedusting.However, individual site environment air-borne mercury concentration values are higher, it is unable to reach the standard of clean air at all, is bound to
It will cause the inaccuracy in school zero, to influence the detection accuracy of mercury on-line monitoring system.
Summary of the invention
It is an object of the invention to solve zero air sampling of mercury on-line monitoring system in surrounding air, special item is not considered
Under part surrounding air mercury background concn height cause the inaccuracy of school zero problem and automatic zero adjustment during pipeline absorption secondary release
Put problem.
The present invention provides a kind of mercury on-line monitoring system, including the water removal of sampling unit, zero gas unit, primary dust removing are single
Member, two-stage dust removal remove water unit, triple valve, removal of mercury unit, pump and mercury analyzer.The sampling unit is removed through the primary dust removing
Water unit, the first interface of the triple valve connect the pump with the third interface of the triple valve.The zero gas unit is through institute
Removal of mercury unit, the primary dust removing are stated except water unit, the two-stage dust removal are except water unit, the second interface of the triple valve and institute
The third interface for stating triple valve connects the pump.The pump connects the mercury analyzer.
Preferably, according to above-mentioned mercury on-line monitoring system, the sampling unit and the zero gas unit are same unit.
Preferably, according to above-mentioned mercury on-line monitoring system, the triple valve is flow control valve.
Or preferably, according to above-mentioned mercury on-line monitoring system, the removal of mercury material of the removal of mercury unit is iodate active carbon.
It is highly preferred that the primary dust removing includes primary dust removing device except water unit according to above-mentioned mercury on-line monitoring system
With level-one de-watering apparatus, the sampling unit is successively through the level-one de-watering apparatus, the first interface of the triple valve, described three
The third interface of port valve connects the pump with the primary dust removing device.
More preferably, according to above-mentioned mercury on-line monitoring system, the two-stage dust removal includes two-stage dust removal device except water unit
With second level de-watering apparatus, the zero gas unit is successively filled through the level-one de-watering apparatus, the two-stage dust removal device, the removal of mercury
It sets, the third interface of the second interface of the second level de-watering apparatus, the triple valve, the triple valve and the primary dust removing dress
Set the connection pump.
Zero air in mercury on-line monitoring system of the invention has not only carried out final dusting water removal, has also carried out at the removal of mercury
Reason, significantly reduces the mercury concentration in zero air.
Mercury on-line monitoring system of the invention carries out respective handling to zero pipeline of school, and zero air sampling is changed to take by air
Sample gas, i.e., gas is sampling always in zero process sample of school, can effectively ensure that whole system is in sampling process, in whole system pipeline
Dynamic equilibrium is kept to mercury absorption and secondary release.In this way, school zero and normal sampling process, in system pipeline, sample gaseity is not
Become, the detection after not influencing school zero.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of mercury on-line monitoring system of the present invention；
Fig. 2 is a kind of structural schematic diagram of mercury on-line monitoring system of the present invention；And
Fig. 3 is a kind of structural schematic diagram of mercury on-line monitoring system of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, a specific embodiment of the invention is described in more details, so as to energy
The advantages of enough more fully understanding the solution of the present invention and its various aspects.However, specific embodiments described below and reality
It applies example to be for illustrative purposes only, rather than limiting the invention.
In some embodiments, as shown in Figure 1, mercury on-line monitoring system includes that sampling unit 11, triple valve 12, level-one are removed
Dirt is except water unit 13, zero gas unit 14, removal of mercury unit 15, two-stage dust removal are except water unit 16, pump 17 and mercury analyzer 18.Sampling is single
The third interface 123 and primary dust removing of first 11 first interfaces 121 and triple valve 12 through triple valve 12 are except the connection pump of water unit 13
17.Zero gas unit 14 is through removal of mercury unit 15, two-stage dust removal except water unit 16, the second interface 122 of triple valve 12, triple valve 12
Third interface 123, primary dust removing are except the connection of water unit 13 pump 17.17 connection mercury analyzer 18 of pump.
Specifically, removal of mercury unit 15 can be iodate activated carbon adsorption pipe, using iodate active carbon to the mercury in zero air into
Row adsorption treatment.Triple valve can be flow control valve, guarantee identical with gas flow in normal measurement process in zero process of school.
When carrying out school zero using above system, zero air successively removes water unit 15 through zero passage gas unit 14, two-stage dust removal, removes
After mercury unit 16, the second interface 122 of triple valve 12, the third interface 123 of triple valve 12, primary dust removing remove water unit 13, then
Into mercury analyzer 18.
During common automatic zero adjustment, zero air is usually surrounding air through dust removal process gained, but live ring individually
Border air-borne mercury concentration is higher, and the acquirement of zero air relies solely on dedusting and is not able to satisfy, and is using the application mercury detection system
When school zero, zero air has not only carried out final dusting except water process, has also carried out demercuration processing, has significantly reduced in zero air
Mercury content.
In some embodiments, as shown in Fig. 2, the sampling process in mercury on-line monitoring system shared with zero process of school it is same
Unit 21.On the one hand, unit 21 is through primary dust removing except the third of water unit 23, the first interface 221 of triple valve 22, triple valve 22
Interface 223 connects the pump 27.On the other hand, unit 21 is through primary dust removing except water unit 23, removal of mercury unit 25, two-stage dust removal remove
Water unit 26, the second interface 222 of triple valve 22, triple valve 22 third interface 223 connect it is described pump 27.27 connection mercury point of pump
Analyzer 28.
When monitoring using above-mentioned mercury on-line monitoring system, the first interface 221 and third interface 223 of triple valve 22 are opened,
Close the second interface 222 of triple valve 22.Sample gas by sampling unit 21, primary dust removing except water unit 23, triple valve 22 the
The third interface 223 and pump 27 of one interface 221, triple valve 22, are detected into mercury analyzer 28.
When using above-mentioned mercury on-line monitoring system school zero, the second interface 222 and third interface 223 of triple valve 22 are opened,
Close the first interface 221 of triple valve 22.Zero gas is through zero passage gas unit 21, primary dust removing except water unit 23, two-stage dust removal water removal
Unit 25, removal of mercury unit 26, the second interface 222 of triple valve 22, triple valve 22 third interface 223 and pump 27, into mercury point
Analyzer 28 carries out school zero.
During common automatic zero adjustment, zero gas that pumping takes is air after dedusting, the entire sample air pipe in solenoid valve front end
(i.e. sampling unit, primary dust removing except water unit and between pipeline etc.) be in static condition, the mercury in sample air pipe can be at this time
The secondary release of row.When school zero terminates to restore sampling, concentration can be carried out to sample gas and be instantaneously superimposed, influence measurement result.And it uses
The mercury on-line monitoring system of the application, in zero process of school and detection process, gas flowing is in invariant state in sample air pipe,
Guarantee the dynamic equilibrium of mercury in systems, influence caused by avoiding because of state change.
In some embodiments, as shown in figure 3, sampling unit and zero gas unit in mercury on-line monitoring system are same list
Member, including feeler lever 311, probe box 312 and the heat tracing sampling line 313 for having sampling probe；Primary dust removing removes water unit
Including level-one de-watering apparatus 331 and primary dust removing device 332；Two-stage dust removal includes second level de-watering apparatus 361 and two except water unit
Grade dust-extraction unit 362.
On the one hand, feeler lever 311, probe box 312, heat tracing sampling line 313, level-one de-watering apparatus 331, threeway 39, threeway
The first interface 321 of valve 32, the third interface 323 of triple valve 32, primary dust removing device 332, pump 37 and mercury analyzer 38 are successively
Connection.On the other hand, the of threeway 39, two-stage dust removal device 362, removal of mercury unit 35, second level de-watering apparatus 361 and triple valve 32
Two interfaces 322 are sequentially connected.
When monitoring using above-mentioned mercury on-line monitoring system, the first interface 321 and third interface 323 of triple valve 32 are opened,
Close the second interface 322 of triple valve 32.Sample gas passes through feeler lever 311, probe box 312, heat tracing sampling line 331, threeway 39, three
The first interface 321 of port valve 32, the third interface 323 of triple valve 32, primary dust removing device 332 and pump 37, into mercury analyzer
38 are detected.
When using above-mentioned mercury on-line monitoring system school zero, the second interface 322 and third interface 323 of triple valve 32 are opened,
Close the first interface 321 of triple valve 32.Zero gas passes through feeler lever 311, probe box 312, heat tracing sampling line 331, threeway 39, two
Grade dust-extraction unit 362, removal of mercury unit 35, second level de-watering apparatus 361, the second interface 322 of triple valve 32, the third of triple valve 32
Interface 323, primary dust removing device 332 and pump 37, carry out school zero into mercury analyzer 38.
Finally, it should be noted that obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Other various forms of variations or variation out.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (6)
1. a kind of mercury on-line monitoring system, which is characterized in that remove water unit, two including sampling unit, zero gas unit, primary dust removing
Grade dedusting removes water unit, triple valve, removal of mercury unit, pump and mercury analyzer,
The sampling unit is through the primary dust removing except the third of water unit, the first interface of the triple valve and the triple valve
Interface connects the pump,
The zero gas unit removes water unit through the removal of mercury unit, the primary dust removing, the two-stage dust removal removes water unit, described
The second interface of triple valve connects the pump with the third interface of the triple valve,
The pump connects the mercury analyzer.
2. mercury on-line monitoring system according to claim 1, which is characterized in that the sampling unit is with the zero gas unit
Same unit.
3. mercury on-line monitoring system according to claim 1, which is characterized in that the triple valve is flow control valve.
4. mercury on-line monitoring system according to claim 1, which is characterized in that the removal of mercury material of the removal of mercury unit is iodate
Active carbon.
5. according to claim 1 to 4 any mercury on-line monitoring systems, which is characterized in that the primary dust removing removes water unit
Including primary dust removing device and level-one de-watering apparatus, the sampling unit is successively through the level-one de-watering apparatus, the triple valve
First interface, the triple valve third interface connect the pump with the primary dust removing device.
6. mercury on-line monitoring system according to claim 5, which is characterized in that the two-stage dust removal includes second level except water unit
Dust-extraction unit and second level de-watering apparatus, the zero gas unit is successively through the level-one de-watering apparatus, the two-stage dust removal device, institute
State mercury removal device, the second level de-watering apparatus, the second interface of the triple valve, the third interface of the triple valve and described one
Grade dust-extraction unit connects the pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367964.4A CN109342133A (en) | 2018-11-16 | 2018-11-16 | A kind of mercury on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811367964.4A CN109342133A (en) | 2018-11-16 | 2018-11-16 | A kind of mercury on-line monitoring system |
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| Publication Number | Publication Date |
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| CN109342133A true CN109342133A (en) | 2019-02-15 |
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ID=65315672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811367964.4A Pending CN109342133A (en) | 2018-11-16 | 2018-11-16 | A kind of mercury on-line monitoring system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202216943U (en) * | 2011-06-16 | 2012-05-09 | 中国地质科学院地球物理地球化学勘查研究所 | Mercury vapor testing system |
| CN202256297U (en) * | 2011-09-22 | 2012-05-30 | 北京雪迪龙科技股份有限公司 | Environmental air quality monitoring system |
| CN204008629U (en) * | 2014-05-30 | 2014-12-10 | 北京市劳动保护科学研究所 | A kind of division aspect Mercury In The Air pick-up unit |
| CN104535725A (en) * | 2014-12-31 | 2015-04-22 | 力合科技（湖南）股份有限公司 | Monitoring system |
| CN204575622U (en) * | 2015-04-24 | 2015-08-19 | 陕西明路光电技术有限责任公司 | A kind of Mercury In The Air accurate detection device |
| CN205426890U (en) * | 2016-03-11 | 2016-08-03 | 山东省计量科学研究院 | Supporting device of gas analysis appearance examination |
| CN206848241U (en) * | 2017-06-21 | 2018-01-05 | 华北电力大学 | A kind of on-line monitoring system of coal fired thermal power plant mercury emissions thing |
-
2018
- 2018-11-16 CN CN201811367964.4A patent/CN109342133A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202216943U (en) * | 2011-06-16 | 2012-05-09 | 中国地质科学院地球物理地球化学勘查研究所 | Mercury vapor testing system |
| CN202256297U (en) * | 2011-09-22 | 2012-05-30 | 北京雪迪龙科技股份有限公司 | Environmental air quality monitoring system |
| CN204008629U (en) * | 2014-05-30 | 2014-12-10 | 北京市劳动保护科学研究所 | A kind of division aspect Mercury In The Air pick-up unit |
| CN104535725A (en) * | 2014-12-31 | 2015-04-22 | 力合科技（湖南）股份有限公司 | Monitoring system |
| CN204575622U (en) * | 2015-04-24 | 2015-08-19 | 陕西明路光电技术有限责任公司 | A kind of Mercury In The Air accurate detection device |
| CN205426890U (en) * | 2016-03-11 | 2016-08-03 | 山东省计量科学研究院 | Supporting device of gas analysis appearance examination |
| CN206848241U (en) * | 2017-06-21 | 2018-01-05 | 华北电力大学 | A kind of on-line monitoring system of coal fired thermal power plant mercury emissions thing |
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