CN209311415U - A kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame - Google Patents
A kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame Download PDFInfo
- Publication number
- CN209311415U CN209311415U CN201822219831.4U CN201822219831U CN209311415U CN 209311415 U CN209311415 U CN 209311415U CN 201822219831 U CN201822219831 U CN 201822219831U CN 209311415 U CN209311415 U CN 209311415U
- Authority
- CN
- China
- Prior art keywords
- flame
- ionization
- reaction chamber
- gas phase
- detection apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The difunctional gas phase chromatographic detection apparatus of ionization-luminosity that the utility model relates to a kind of based on hydrogen flame, including pedestal, reaction chamber, upper cover, flame photometric detector and flame ionization detector, reaction chamber is tubular structure, and upper cover and pedestal are individually fixed in the both ends of reaction chamber；Mixing tube is provided in pedestal, the side of pedestal is provided with the first air intake, and the side of mixing tube is provided with hydrogen inlet, and nozzle extends into reaction chamber, and the end of nozzle is provided with annular metal circle；The side wall of reaction chamber is provided with window, and quartz glass plate is equipped at window, and flame photometric detector is connected with window；Becket is provided in upper cover, flame ionization detector passes through conducting wire respectively and is connected with annular metal circle and becket, and provides direct current to annular metal circle；Gas chromatographic detection device provided by the utility model, it is compact-sized, and flame ion detection and flame photometric detection can be achieved at the same time.
Description
Technical field
The utility model relates to VOC monitoring technical fields, and in particular to a kind of double function of ionization-luminosity based on hydrogen flame
It can gas chromatographic detection device.
Background technique
VOC is the english abbreviation of volatile organic compounds (volatile organic compounds)；Common meaning
On VOC be exactly to refer to volatile organic matter；But the VOC on environment protection significance refers to active a kind of volatile organic matter, i.e.,
That a kind of volatile organic matter of harm can be generated.
Field is monitored in environmentally friendly VOC, it usually needs a variety of VOC ingredients is measured, such as conventional hydrocarbon, halogenated hydrocarbons, organic sulfur
VOC, organic phosphorus VOC etc.；Conventional hydrocarbon generally uses flame ionization detector (FID) to be detected, due to frequently with hydrogen
Hydrogen flame is generated as combustion gas, therefore FID is also commonly known as flame ionization ditector；Organic sulfur generally uses flame luminosity
Detector (FPD) is detected.
In the prior art, for needing to detect conventional hydrocarbon and organic sulfur, organic phosphorus demand occasion simultaneously, it usually needs
Two kinds of detectors of FID, FPD are installed simultaneously, and two will be configured for hydrogen required for two kinds of detectors, air, carrier gas
Group, the chromatographic column to match, control circuit will also increase, and both increase the complexity of system, also improve the cost of equipment
And maintenance workload.
Utility model content
The purpose of this utility model is that improve the deficiency in the presence of the prior art, provide it is a kind of compact-sized, and
The gas chromatographic detection device of flame ion detection and flame photometric detection can be achieved at the same time.
The technical scheme adopted by the utility model is
A kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame, including pedestal, reaction chamber, on
Lid, flame photometric detector and flame ionization detector, wherein the reaction chamber is tubular structure, the upper cover and base
Seat is individually fixed in the both ends of reaction chamber, and is respectively used to closed reaction chamber；Mixing tube, the side of pedestal are provided in the pedestal
Face is provided with the first air intake, and one end of the mixing tube is connected with nozzle, and the carrier gas that other end connection is set to pedestal enters
Mouthful, the side of mixing tube is provided with hydrogen inlet, and the nozzle extends into the reaction chamber, and the end of nozzle is provided with cyclic annular gold
Belong to circle；The side wall of the reaction chamber is provided with window, and quartz glass plate, the flame photometric detector and institute are equipped at window
Window is stated to be connected；Becket is provided in the upper cover, the flame ionization detector passes through conducting wire and the ring respectively
Shape quoit and becket are connected, and provide direct current to the annular metal circle.
It further, further include second air intake, the second air intake is set to the side wall of the upper cover, and with
The inside of upper cover is connected, and second air intake is for filling into air.
Preferably, the voltage of the direct current is 650V.
Preferably, air that the hydrogen inlet is inputted hydrogen, first air intake are inputted and described
The ratio between volume of air that second air intake is inputted is 1:3:7.
Preferably, the nozzle is quartz nozzle.
Further, the nozzle is fixed on the pedestal by graphite annulus.
It further, further include heat-protecting glass and optical filter, the heat-protecting glass and optical filter are successively set on the stone
Between English sheet glass and the flame photometric detector.
Preferably, the wavelength of the optical filter is 394nm or 526nm.
Further, several transparent quartz ampoules are vertically arranged in the reaction chamber, the quartz ampoule is for reducing anti-
Answer the volume of room and the response coefficient for improving flame photometric detection.
Preferably, the flame photometric detector includes photomultiplier tube and amplifying circuit, the photomultiplier tube and institute
Amplifying circuit is stated to be connected, photomultiplier tube for converting optical signals into electric signal, amplifying circuit be used for the electric signal into
Row amplification.
Preferably, flame ionization detector includes DC source and low current amplifier, the DC source and the ring-type
Quoit is connected, and for providing direct current, the low current amplifier is connected with the becket, for the electric current letter to acquisition
It number amplifies.
Preferably, the pedestal, reaction chamber and upper cover are respectively adopted stainless steel material and are made.
Further, the upper cover is provided with exhaust outlet, and the exhaust outlet is for discharging exhaust gas.
Compared with prior art, difunctional using a kind of ionization-luminosity based on hydrogen flame provided by the utility model
Gas chromatographic detection device, structure is simple, compact, can not only detect simultaneously conventional hydrocarbon and organic sulfur/phosphorus compound (
With simultaneously realize flame ion detection and flame photometric detection), and it is possible to prevente effectively from the prior art the drawbacks of.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Attached drawing
Fig. 1 is the difunctional gas phase color of a kind of ionization-luminosity based on hydrogen flame provided in the utility model embodiment 1
The structural schematic diagram of spectrum detection device.
Description of symbols in figure
Pedestal 101, reaction chamber 102, upper cover 103, carrier gas inlet 104, hydrogen inlet 105, the first air intake 106, the
Two air intakes 107, mixing tube 108, nozzle 109, annular metal circle 110, window 111, quartz glass plate 112, becket
113, ignition wire 114, quartz ampoule 115, heat-protecting glass 116, optical filter 117, exhaust outlet 118.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
Embodiment 1
Referring to Fig. 1, providing a kind of difunctional gas-chromatography inspection of ionization-luminosity based on hydrogen flame in the present embodiment
Survey device, including pedestal 101, reaction chamber 102, upper cover 103, flame photometric detector and flame ionization detector, wherein
As shown in Figure 1, reaction chamber 102 is tubular structure, upper cover 103 and pedestal 101 are individually fixed in the two of reaction chamber 102
End, and it is respectively used to closed reaction chamber 102；
Mixing tube 108 (or becoming capillary column) is provided in pedestal 101, the side of pedestal 101 is provided with the first air
Entrance 106, the first air intake 106 are connected with reaction chamber 102, and one end of mixing tube 108 is connected with nozzle 109, the other end
Connection is set to the carrier gas inlet 104 of pedestal 101, and the VOC to be measured pushed by carrier gas is passing through carrier gas inlet after chromatographic column
104 enter mixing tubes 108, and the side of mixing tube 108 is provided with hydrogen inlet 105, so as to hydrogen with pushed by carrier gas it is to be measured
VOC can be sufficiently mixed, as shown in Figure 1, nozzle 109 extends into reaction chamber 102, the end of nozzle 109 is provided with annular metal
Circle 110 (can be conductive)；
As shown in Figure 1, the side wall of reaction chamber 102 is provided with window 111, quartz glass plate 112 is installed at window 111,
To close the window 111, flame photometric detector is connected with window 111, so as to generated feature in reaction chamber 102
Light can inject flame photometric detector by the quartz glass plate 112 at window 111, thus realize the analysis to luminosity, into
And it realizes to the detection of organic sulfur/phosphorus compound；
As shown in Figure 1, ignition wire 114 and becket 113 are provided in upper cover 103,114 heating power of ignition wire and then point
It fires hydrogen and generates hydrogen flame, complete the function of automatic ignition；Flame ionization detector passes through conducting wire and the cyclic annular gold respectively
Belong to circle 110 and becket 113 be connected, and to the annular metal circle 110 provide direct current so that at annular metal circle 110 at
For pole of polarizing, become collector at becket 113, realizes detection to conventional hydrocarbon will pass through flame ionization detector.
Gas chromatographic detection device provided by the present embodiment, structure is simple, compact, can not only detect conventional hydrocarbon simultaneously
Class and organic sulfur/phosphorus compound, and it is possible to prevente effectively from the prior art the drawbacks of.
In further embodiment, this gas chromatographic detection device further includes second air intake 107, as shown in Figure 1, the
Two air intakes 107 are set to the side wall of the upper cover 103, and are connected with the inside of upper cover 103, second air intake 107
For filling into air, so that the flame of 102 top of reaction chamber can continue to mix with air simultaneously sustained combustion, be conducive to improve hydrogen
The mixed firinor fuel burning ratio of gas, air enhances thermal ionization effect, improves flame ion rate.
The specific workflow of gas chromatographic detection device provided by the present embodiment are as follows: carrier gas pushes VOC to be measured to flow through
After chromatographic column, from carrier gas inlet 104 enter pedestal 101 mixing tube 108 (chromatographic column is generally arranged at the lower section of pedestal 101, and
Can be tightly connected by graphite annulus and pedestal 101), and mixed with hydrogen；Mixed gas is sprayed by nozzle 109,
Air mixing after-combustion nozzle 109 top and entered from the first air intake 106, the carbon atom in hydro carbons VOC to be measured are high
Temperature ionization generates ion, and organic sulfur/organic phosphorus compound to be measured decomposes in flame, and generates complicated chemical reaction, issues
Characteristic light, characteristic light enter flame photometric detector after window 111；There is photomultiplier tube in flame photometric detector and puts
Big circuit, photomultiplier tube are connected with amplifying circuit, and photomultiplier tube is used for converting optical signals into electric signal, amplifying circuit
It is amplified in the electric signal, to realize to the detection of organic sulfur/organic phosphorus compound；Thermal-flame is in reaction chamber
Flowing is continued up in 102, is mixed with the air filled into from second air intake 107 and the thermal ionization that burns away, ionization
Under high voltage direct current field action of the ion stream between polarization pole (i.e. annular metal circle 110) and collector (i.e. becket 113)
Collector is flowed to, forms electric current, and then be sent into flame ionization detector, as an example, flame ionization detector includes straight
Stream source and low current amplifier, DC source are connected with annular metal circle 110, for providing direct current, the low current amplifier
It is connected with the becket 113, for being amplified to the current signal of acquisition, to realize the detection to conventional hydrocarbon.
In the prior art, the high pressure of conventional fid detector is 200V, due in this detection device, two electrode distances
Farther out, as shown in Figure 1, in order to meet detection demand, the voltage of direct current described in this detection is 650V, i.e. DC source can mention
For the high voltage direct current of 650V.
In further embodiment, be vertically arranged in reaction chamber 102 several transparent quartz ampoules 115 (or for quartz
Bushing pipe), quartz ampoule 115 for reducing reaction chamber 102 volume, simultaneously be conducive to improve flame photometric detection response coefficient.
In order to receive the characteristic light of detection S and P.With the sulphur optical filter 117 of 394nm, it can make the light near 394nm saturating
It crosses；To phosphorus, 526nm optical filter 117 can be used, the emission maximum light of phosphorus is penetrated, and filter off other this bottom emittings, to reach choosing
The purpose of selecting property detection.
In further embodiment, gas chromatographic detection device provided by the present embodiment further includes 116 He of heat-protecting glass
Optical filter 117, the heat-protecting glass 116 and optical filter 117 are successively set on the quartz glass plate 112 and the flame luminosity
Between detector；Heat-protecting glass 116 is for heat-insulated, and optical filter 117 is for filtering out Impurity spectra, so as to sulphur/phosphorus characteristic light
Optical filter 117 can smoothly be passed through.
In actual application, in order to receive the characteristic light for detecting S (sulphur), it can preferentially use wavelength for 394nm's
Optical filter 117, so that the light (the transmitting light of sulphur is 394nm or so) near 394nm can be penetrated smoothly；In order to receive detection
The characteristic light of P (phosphorus) can preferentially use wavelength for the optical filter 117 of 526nm, so that the emission maximum light of phosphorus penetrates, thus
Other bottom emitting light are filtered off, achieve the purpose that selective enumeration method, more accurately to detect organic phosphorus compound.
It further, in actual application, is the response rate for improving sulphur, phosphorus, the fire that when flame photometric detection uses
Flame is usually hydrogen rich flame, i.e. hydrogen and AIR Proportional is bigger than normal, generally 1:3；And when carrying out flame ion detection, it is ideal
Hydrogen and the mixed proportion of air be 1:10, therefore in the present embodiment, for greatest extent while meet flame photometric detection
With the demand of flame ion detection, it can be that flame ion detection fill into air by second air intake 107, allow quartz
The flame of 115 top of pipe continues to mix with air and burn, and ionizing efficiency when flame ion detection is improved, in the present embodiment
In, air, second air that hydrogen that the hydrogen inlet 105 is inputted, first air intake 106 are inputted enter
The ratio (usually the ratio between volume) for the air that mouth 107 is inputted can preferentially be set as 1:3:7.
In the present embodiment, nozzle 109 can preferentially use quartz nozzle 109, and nozzle 109 can be solid by graphite annulus
Due to pedestal 101.
In the present embodiment, pedestal 101, reaction chamber 102 and upper cover 103 can be preferentially using by stainless steel material systems
At.
As shown in Figure 1, upper cover 103 is provided with exhaust outlet 118 in more perfect scheme, exhaust outlet 118 is mainly used for arranging
Put exhaust gas；Ignition wire 114, annular metal circle 110 and becket 113 using high temperature resistant, high insulating coefficient insulating materials with
The shell of upper cover 103 or reaction chamber 102 forms insulated enclosure, and which is not described herein again.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.
Claims (10)
1. a kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame, which is characterized in that including pedestal,
Reaction chamber, upper cover, flame photometric detector and flame ionization detector, wherein the reaction chamber is tubular structure, described
Upper cover and pedestal are individually fixed in the both ends of reaction chamber, and are respectively used to closed reaction chamber；It is provided with mixing tube in the pedestal,
The side of pedestal is provided with the first air intake, and one end of the mixing tube is connected with nozzle, and other end connection is set to pedestal
Carrier gas inlet, the side of mixing tube is provided with hydrogen inlet, and the nozzle extends into the reaction chamber, the end setting of nozzle
There is annular metal circle；The side wall of the reaction chamber is provided with window, and quartz glass plate, the flame luminosity inspection are equipped at window
Device is surveyed to be connected with the window；Becket is provided in the upper cover, the flame ionization detector passes through conducting wire respectively
It is connected with the annular metal circle and becket, and provides direct current to the annular metal circle.
2. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 1 based on hydrogen flame, feature
It is, further includes second air intake, the second air intake is set to the side wall of the upper cover, and the inside phase with upper cover
Connection, second air intake is for filling into air.
3. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 1 based on hydrogen flame, feature
It is, the voltage of the direct current is 650V.
4. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 2 based on hydrogen flame, feature
It is, the air and second air that hydrogen that the hydrogen inlet is inputted, first air intake are inputted enter
The ratio between volume of air that mouth is inputted is 1:3:7.
5. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 2 based on hydrogen flame, feature
It is, further includes heat-protecting glass and optical filter, the heat-protecting glass and optical filter is successively set on the quartz glass plate and institute
It states between flame photometric detector.
6. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 5 based on hydrogen flame, feature
It is, the wavelength of the optical filter is 394nm or 526nm.
7. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 5 based on hydrogen flame, feature
Be, be vertically arranged with several transparent quartz ampoules in the reaction chamber, the quartz ampoule for reducing reaction chamber volume simultaneously
For improving the response coefficient of flame photometric detection.
8. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 1 based on hydrogen flame, feature
It is, the nozzle is fixed on the pedestal by graphite annulus.
9. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 1 based on hydrogen flame, feature
It is, the flame photometric detector includes photomultiplier tube and amplifying circuit, the photomultiplier tube and the amplifying circuit
It is connected, photomultiplier tube is for converting optical signals into electric signal, and amplifying circuit is for amplifying the electric signal.
10. the difunctional gas phase chromatographic detection apparatus of ionization-luminosity according to claim 1 based on hydrogen flame, special
Sign is, the flame ionization detector includes DC source and low current amplifier, the DC source and the annular metal
Circle be connected, for providing direct current, the low current amplifier is connected with the becket, for the current signal to acquisition into
Row amplification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822219831.4U CN209311415U (en) | 2018-12-27 | 2018-12-27 | A kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822219831.4U CN209311415U (en) | 2018-12-27 | 2018-12-27 | A kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209311415U true CN209311415U (en) | 2019-08-27 |
Family
ID=67679346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822219831.4U Active CN209311415U (en) | 2018-12-27 | 2018-12-27 | A kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209311415U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596291A (en) * | 2019-10-21 | 2019-12-20 | 江苏天瑞仪器股份有限公司 | Hydrogen flame ionization detector |
| CN111707757A (en) * | 2020-06-29 | 2020-09-25 | 杭州柯林电气股份有限公司 | Transformer oil online chromatographic analysis method based on FID |
| CN113376242A (en) * | 2021-06-10 | 2021-09-10 | 王斌 | Hydrocarbon ion detector |
-
2018
- 2018-12-27 CN CN201822219831.4U patent/CN209311415U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596291A (en) * | 2019-10-21 | 2019-12-20 | 江苏天瑞仪器股份有限公司 | Hydrogen flame ionization detector |
| CN111707757A (en) * | 2020-06-29 | 2020-09-25 | 杭州柯林电气股份有限公司 | Transformer oil online chromatographic analysis method based on FID |
| CN111707757B (en) * | 2020-06-29 | 2023-01-10 | 杭州柯林电气股份有限公司 | Transformer oil online chromatographic analysis method based on FID |
| CN113376242A (en) * | 2021-06-10 | 2021-09-10 | 王斌 | Hydrocarbon ion detector |
| CN113376242B (en) * | 2021-06-10 | 2023-06-20 | 王斌 | Hydrocarbon ion detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209311415U (en) | A kind of difunctional gas phase chromatographic detection apparatus of ionization-luminosity based on hydrogen flame | |
| US5741711A (en) | Flame-based method and apparatus for analyzing a sample | |
| CN106802333A (en) | A kind of NMHC on-line measuring device | |
| CN108717106A (en) | The device and its detection method of total sulfur content in a kind of detection natural gas | |
| CN106568833A (en) | Photochemical steam generator and liquid cathode glow discharge spectrometer coupled analysis apparatus and method for detecting heavy metal by using apparatus | |
| CN205861636U (en) | A kind of gas chromatogram flame ionization ditector | |
| Vega et al. | NO emission of oxygen-enriched CH4/O2/N2 premixed flames under electric field | |
| CN103592196A (en) | Method for studying enrichment of heavy metal elements through fine particles during combustion process | |
| CN103592159A (en) | Research method of mercury form transformation during combustion process | |
| US3372000A (en) | Flame ionization detector | |
| CN203396758U (en) | Novel wide-range hydrogen flame ionization detector | |
| CN207636494U (en) | A kind of hydrogen flame ionization detector | |
| CN206450639U (en) | Flame ionization ditector | |
| CN103048163A (en) | Method for continuously extracting tritium from soil | |
| CN203786098U (en) | Flame photometric detector | |
| CN106645073B (en) | Atomizer and ignition device thereof | |
| CN202501467U (en) | Fully-premixed automatic ignition nozzle | |
| CN210604532U (en) | Chromatographic detection device | |
| CN211877884U (en) | Flame luminosity detector | |
| CN209167130U (en) | Atomic Emission Spectral Analysis detection device based on hollow electrode point discharge | |
| CN206431100U (en) | A kind of gas phase spectrometer | |
| CN218766803U (en) | FPD flame luminosity detector | |
| CN106989390A (en) | A kind of Bunsen burner formula low temperature plasma assisted combustion device | |
| CN104390820B (en) | Multifunctional carbon-14 sample preparation system and gas circuit control method | |
| CN205484194U (en) | Dbd ionization detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |