CN204128967U - Pulse ultraviolet fluorescence sulphur meter - Google Patents
Pulse ultraviolet fluorescence sulphur meter Download PDFInfo
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- CN204128967U CN204128967U CN201420633400.1U CN201420633400U CN204128967U CN 204128967 U CN204128967 U CN 204128967U CN 201420633400 U CN201420633400 U CN 201420633400U CN 204128967 U CN204128967 U CN 204128967U
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- light reaction
- light
- ultraviolet
- cracking furnace
- light source
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The utility model discloses a kind of pulse ultraviolet fluorescence sulphur meter, be made up of injector, high-temperature cracking furnace, membrane dryer, light reaction pond, pulsed UV light source, photomultiplier, micro current amplifier, single-chip computer control system, computing machine, output device etc., owing to using its test result obtained of pulsed UV light source more accurate; Employ pulse ultraviolet fluorescence in high-temperature cracking furnace and survey sulphur dedicated quartz tube, its sample combustion is more abundant; And light reaction pool wall scribbles special coating absorption ultraviolet light, can reduce the scattering of ultraviolet light, reflection, have some superiority relative to existing sulphur meter.
Description
Technical field
The present invention relates to industrial Element detection field, particularly relate to a kind of pulse ultraviolet fluorescence sulphur meter.
Background technology
Fluorometry is according to material molecule Absorption and fluorescence spectrum energy level transition mechanism, and the material with absorb photons ability can launch the light longer than excitation wavelength instantaneously, i.e. fluorescence, SO under special wavelength light (as ultraviolet light) irradiates
2molecule is in the SO of excited state after irradiating by specific light
2molecule sends fluorescence when returning ground state, its fluorescence intensity and SO
2linear, thus can gas concentration be measured.After detecting instrument system is determined, fluorescence total light intensity I and SO
2relation between concentration can be expressed as: I=KC is under stable condition, and these parameters are also determined thereupon, and k can be considered constant.Therefore, the Ultraluminescence light intensity I that formula I=KC represents and the concentration C of sample gas linear, this is the important evidence that ultraviolet fluorescence method carries out quantitatively detecting.
Fluorescence analysis is the analytical approach of a kind of advanced person, it than electron probe method, mass spectroscopy, spectroscopic methodology, polarography etc. all apply comparatively extensively and universal, it is inseparable that this has lot of advantages with fluorescence analysis.Fluorescence analysis equipment used is comparatively simple, as range estimation luminoscope with fluorophotometer structure is very simple can oneself manufacture completely.Compared with mass spectrometer, polarograph and electron probe instrument come it want in cost cheap a lot of doubly, and the maximum feature of fluorescence analysis is: sensitivity for analysis is high, selectivity is strong and easy to use.The instrument simultaneously possessing this three large feature is also few.
Summary of the invention
The present invention is the improvement made on existing instrument, by these technological means of special coating using pulsed UV light source, use pulsed ultraviolet fluorescence method dedicated quartz tube in high-temperature cracking furnace, coat Absorbable rod ultraviolet light at light reaction pool wall, the accuracy of sulphur meter is promoted on the original basis further.
The present invention is achieved through the following technical solutions:
The present invention includes injector, membrane dryer, photomultiplier, optical filtering, micro current amplifier, single-chip computer control system, computing machine, output device, it is characterized in that: also comprise high-temperature cracking furnace, pulsed UV light source, light reaction pond, condenser, wherein said injector, high-temperature cracking furnace, membrane dryer, light reaction pond is connected in turn by stainless steel pipeline, described light reaction pond is also connected by stainless steel pipeline with described membrane dryer, in order to emptying, incident light reaction tank after described ultraviolet source is filtered by optical filtering, inject on corresponding light reaction pool wall with light source and condenser is installed, described condenser fluorescence injection position is provided with photomultiplier, described photomultiplier successively with micro current amplifier, single-chip computer control system, computing machine, output device is electrically connected, containing a pulse type ultraluminescence method sulphur Cmeasuring dedicated quartz tube in described high-temperature cracking furnace, described light reaction pool wall scribbles the ultraviolet special coating of Absorbable rod,
As preferably, the recurrence interval of described pulsed UV light source is 1s, and wherein irradiating duration is 0.995s;
As preferably, it is the narrow band pass filter of 291nm that described condenser is also equipped with a midbandwidth by side outside light reaction pond;
As preferably, the special coating composition of described light reaction pool wall is ultraviolet absorber UV9, peony Berlin black, hardening agent, acetone form by 1:2:1:2 proportions.
Wherein the instrumental baseline noise caused by capacity variation can be avoided or reduce to the use of pulsed UV light source, thus effectively improves detection sensitivity and accuracy, also can reduce the lower limit of the sulfur content that can test; The special coating that light reaction pool wall is coated with effectively can absorb ultraviolet, reduces scattering, reflection; The pulsed ultraviolet fluorescence adopted in high-temperature cracking furnace surveys sulphur method dedicated quartz tube can make sample combustion more abundant, and test result can be made more accurate.
In sum, the degree of accuracy of this pulse ultraviolet fluorescence tester, sensitivity, the progress all to some extent on the basis of existing instrument of detectable concentration lower limit, have advance and practicality in this area.
Accompanying drawing explanation
Fig. 1 is this pulse ultraviolet fluorescence sulphur meter structural representation, in figure 1, injector 2, high-temperature cracking furnace 3, membrane dryer 4, light reaction pond 5, pulsed UV light source 6, optical filtering 7, condenser 8, photomultiplier 9, micro current amplifier 10, single-chip computer control system 11, computing machine 12, output device 13 stainless steel pipeline.
Embodiment
Embodiment one
The present invention includes injector 1 as shown in Figure 1, membrane dryer 3, photomultiplier 8, optical filtering 6, micro current amplifier 9, single-chip computer control system 10, computing machine 11, output device 12, it is characterized in that: also comprise high-temperature cracking furnace 2, pulsed UV light source 5, light reaction pond 4, condenser 7, wherein said injector 1, high-temperature cracking furnace 2, membrane dryer 3, light reaction pond 4 is connected in turn by stainless steel pipeline 13, described light reaction pond is also connected by stainless steel pipeline 13 with described membrane dryer 3, in order to emptying, incident light reaction tank 4 after described pulsed UV light source 5 is filtered by optical filtering 6, inject on corresponding light reaction pool wall with light source and condenser 7 is installed, described condenser 7 fluorescence injection position is provided with photomultiplier 8, described photomultiplier 8 successively with micro current amplifier 9, single-chip computer control system 10, computing machine 11, output device 12 is electrically connected, containing a pulse type ultraluminescence method sulphur Cmeasuring dedicated quartz tube in described high-temperature cracking furnace 2, described light reaction pool wall scribbles the ultraviolet special coating of Absorbable rod,
Concrete, the recurrence interval of described pulsed UV light source 5 is 1s, and wherein irradiating duration is 0.995s;
Concrete, it is the narrow band pass filter of 291nm that described condenser 7 is also equipped with a midbandwidth by side outside light reaction pond;
Concrete, the special coating composition of described light reaction pool wall is ultraviolet absorber UV9, peony Berlin black, hardening agent, acetone form by 1:2:1:2 proportions.
These are only preferred embodiment of the present invention, therefore can not limit scope of the invention process according to this, the equivalence namely done according to description of the present invention changes and decoration, all should belong in the scope of the present invention's covering.
Claims (3)
1. a pulse ultraviolet fluorescence sulphur meter, comprise injector, membrane dryer, photomultiplier, optical filtering, micro current amplifier, single-chip computer control system, computing machine, output device, it is characterized in that: also comprise high-temperature cracking furnace, pulsed UV light source, light reaction pond, condenser, wherein said injector, high-temperature cracking furnace, membrane dryer, light reaction pond is connected in turn by stainless steel pipeline, described light reaction pond is also connected by stainless steel pipeline with described membrane dryer, in order to emptying, incident light reaction tank after described ultraviolet source is filtered by optical filtering, inject on corresponding light reaction pool wall with light source and condenser is installed, described condenser fluorescence injection position is provided with photomultiplier, described photomultiplier successively with micro current amplifier, single-chip computer control system, computing machine, output device is electrically connected, containing a pulse type ultraluminescence method sulphur Cmeasuring dedicated quartz tube in described high-temperature cracking furnace, described light reaction pool wall scribbles the ultraviolet special coating of Absorbable rod.
2. pulse ultraviolet fluorescence sulphur meter according to claim 1, is characterized in that the recurrence interval of described pulsed UV light source is 1s, and wherein irradiating duration is 0.995s.
3. pulse ultraviolet fluorescence sulphur meter according to claim 1, it is characterized in that described condenser is also equipped with a midbandwidth by side outside light reaction pond is the narrow band pass filter of 291nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633400.1U CN204128967U (en) | 2014-10-29 | 2014-10-29 | Pulse ultraviolet fluorescence sulphur meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420633400.1U CN204128967U (en) | 2014-10-29 | 2014-10-29 | Pulse ultraviolet fluorescence sulphur meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204128967U true CN204128967U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420633400.1U Expired - Fee Related CN204128967U (en) | 2014-10-29 | 2014-10-29 | Pulse ultraviolet fluorescence sulphur meter |
Country Status (1)
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| CN (1) | CN204128967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651750A (en) * | 2016-01-26 | 2016-06-08 | 张继勇 | Ultraviolet fluorescence on-line total sulfur analysis control system and method |
| CN109164075A (en) * | 2018-08-31 | 2019-01-08 | 北方华锦化学工业股份有限公司 | The method of ultraviolet fluorescence method analysis heavy wax oil samples |
| CN110018135A (en) * | 2019-04-30 | 2019-07-16 | 济南弗莱德科学仪器有限公司 | Derv fuel, gasoline mobile laboratory overall target Fast Detection Technique |
-
2014
- 2014-10-29 CN CN201420633400.1U patent/CN204128967U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651750A (en) * | 2016-01-26 | 2016-06-08 | 张继勇 | Ultraviolet fluorescence on-line total sulfur analysis control system and method |
| CN105651750B (en) * | 2016-01-26 | 2018-09-25 | 张继勇 | The online analysis of total sulfur control system of Ultraluminescence and method |
| CN109164075A (en) * | 2018-08-31 | 2019-01-08 | 北方华锦化学工业股份有限公司 | The method of ultraviolet fluorescence method analysis heavy wax oil samples |
| CN110018135A (en) * | 2019-04-30 | 2019-07-16 | 济南弗莱德科学仪器有限公司 | Derv fuel, gasoline mobile laboratory overall target Fast Detection Technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20151029 |
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| EXPY | Termination of patent right or utility model |