CN206020356U - A kind of flame photometric detector - Google Patents
A kind of flame photometric detector Download PDFInfo
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- CN206020356U CN206020356U CN201620944697.2U CN201620944697U CN206020356U CN 206020356 U CN206020356 U CN 206020356U CN 201620944697 U CN201620944697 U CN 201620944697U CN 206020356 U CN206020356 U CN 206020356U
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- flame
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- photometric detector
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- photomultiplier tube
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Abstract
This utility model belongs to detecting instrument technical field, disclose a kind of flame photometric detector, including main casing, the illuminated chamber being arranged inside main casing and the photomultiplier tube of the light that can receive the illuminated chamber Flame transmitting, also include reflex reflector, it is arranged at the luminous interior, it is connected including body and with the body and to the reflector layer of body direction bending, the reflector layer surrounds the echo area being open towards the photomultiplier tube around flame, so that the light of flame emission is reflexed at the photomultiplier tube through the reflector layer；To light line reflection thoroughly, light smoothly can be received by photomultiplier tube, fallen without being blocked scattering, finally improve the sensitivity of flame photometric detector for above-mentioned setting.
Description
Technical field
This utility model belongs to detecting instrument technical field, and in particular to a kind of flame photometric detector, and more particularly to one
Plant highly sensitive flame photometric detector.
Background technology
Flame photometric detector (FPD) is that one kind of gas chromatograph has high selection type, height to phosphorous, sulfur-containing compound
The detector of sensitivity.The ultimate principle which detects is as follows：When the compound of phosphorous or sulfur burns in hydrogen rich flame, sulfur, phosphorus
It is excited and launches the spectrum of characteristic wavelength, wherein, sulfur-containing compound then launches wavelength in the form of S2 molecules as 394nm
Characteristic light, phosphorus-containing compound mainly launch light of the wavelength as 526nm in the form of HPO fragments.These light above-mentioned are through filter
After mating plate filters, the photomultiplier tube being installed in flame photometric detector is received, and then converts optical signals into the signal of telecommunication,
Then, the amplified device of the signal of telecommunication records corresponding chromatogram by record system after amplifying.But, because flame is sent out in illuminated chamber
The just 360 ° of omnidirectional light for going out, and photomultiplier tube can only receive to face the light that photomultiplier tube direction is injected, other
The light majority in direction is absorbed by luminous chamber interior walls and dies out, and the light intensity of the light for causing photomultiplier tube to receive is low, and by light
The light intensity of the light that electric multiplier tube receives is directly proportional to the content of tested component, ultimately results in flame photometric detector (FPD)
Poor sensitivity.
In order to solve the above problems, prior art has carried out many transformations to flame photometric detector (FPD) structure, as in
State patent documentation CN103226101A discloses a kind of high sensitivity flame photometric detector.The flame photometric detector passes through
The mouth of burning Indoor Combustion nozzle is covered with quartz cover, and quartz cover is shaped to spheroid positioned at flame location, connects
The inner surface or outer surface for the relative light path side of the spheroid in quartz cover is provided with reflective membrane.By spheroid and reflective
The light that flame is sent by film is gathered and is injected in light path as much as possible, and then improves flame photometric detector to a certain extent
Sensitivity.But, above-mentioned technology is only provided with reflective membrane in the inner surface or outer surface of the spheroid of relative light path side, although
The light of flame directive reflective membrane can be reflexed in light path, but other sides of not relative with the light path spheroid of flame directive
The light in face then effectively can not be reflexed in light path；Furthermore, light can penetrate the quartz cover for not setting reflective membrane, and then be lost to burning
In room, and there is gap between the Inner Wall of Combustion Chamber of quartz cover and close light path, cause light to be lost in combustor from gap, most
Afterwards, be still provided with quartz cover on the direction that light path is entered in light, can have certain scattering and barrier effect to light, cause light loss
Lose.Drawbacks described above can cause light fully not received by photomultiplier tube, and then can not effectively improve above-mentioned photometric detector
Sensitivity.
Utility model content
For this purpose, to be solved in the utility model is that the light that flame photometric detector Flame is launched fails by photomultiplier transit
The defect that pipe is effectively received, and then providing a kind of photomultiplier tube, effectively to receive the light of flame emission, detection sensitivity high
Flame photometric detector.
A kind of flame photometric detector provided by the utility model, including main casing, is arranged at sending out inside main casing
Light room and can receive illuminated chamber Flame transmitting light photomultiplier tube, also include,
Reflex reflector, is arranged at the luminous interior, is connected including body and with the body and to the body side
To the reflector layer of bending, the reflector layer surrounds the echo area being open towards the photomultiplier tube around flame, so that flame
The light of transmitting is reflexed at the photomultiplier tube through the reflector layer.
Preferably, the opening of the reflector layer is fitted with the inwall of the illuminated chamber.
Preferably, the reflector layer is parabolic cylinder layer or semicolumn layer, and flame is positioned at the parabolic cylinder layer or the semicircle
On the axis of post layer.
Preferably, the axial direction one of the axial direction of the parabolic cylinder layer or the semicolumn layer and the illuminated chamber
Cause, and the bottom of the parabolic cylinder layer or the semicolumn layer is fitted with the bottom of the illuminated chamber, in the illuminated chamber
Bottom opens up at least one nozzle, so that combustible gas, combustion-supporting gas and carrier gas enter the echo area through the nozzle, and by setting
The ignition coil for being placed in illuminated chamber side wall lights gaseous mixture, makes flame burn in the echo area.
Further, also include branch's housing, described closing is extended to including opening end, closed end and by the opening end
The inner chamber at mouth end, the opening end is tightly connected with the main casing, so that illuminated chamber described in the inner space, and described interior
The interior accent in chamber is adapted to the opening, and the photomultiplier tube is arranged in the inner chamber near the closed end.
Further, branch's housing and the main casing body by integral forming.
Further, two openings extend to the interior intracavity of branch's housing.
Further, height hs of the axial height H of the reflector layer not less than the opening end of branch's housing；
Further, width of radial width G of the reflector layer opening not less than the opening end of branch's housing
g.
Further, also include optical filter, be arranged in branch's housing cavity and split the inner chamber；
Fin, is arranged at branch's housing exterior walls and stretches out；
Heating member, is embedded in the main casing body and near the illuminated chamber, so that the steam produced in combustion process is not
Condense.
Further, the body is flame retardant coating, and the reflector layer plating is located at the fire resisting layer surface.
Compared with prior art, this utility model has the advantages that：
1) flame photometric detector provided by this utility model embodiment, by luminous interior setting reflex reflector,
And reflex reflector is included body and is connected with the body and the reflector layer to body direction bending, and the reflector layer
The echo area being open towards the photomultiplier tube is surrounded around flame, and flame is anti-through the reflector layer to the light that surrounding is launched
It is incident upon at the photomultiplier tube, and is received by photomultiplier tube.To light line reflection thoroughly, light can smoothly by light for above-mentioned setting
Electric multiplier tube is received, and is fallen without being blocked scattering, is finally improved the sensitivity of flame photometric detector.
2) flame photometric detector provided by this utility model embodiment, the opening of the reflector layer are luminous with described
The inwall of room fits.By above-mentioned setting, make the light of flame emission will not be between the side inwall of reflector layer and illuminated chamber
Gap scatters to illuminated chamber and causes damage, and then the light of flame emission is effectively received by photomultiplier tube.
3) reflector layer is arranged to parabolic cylinder layer or semicircle by the flame photometric detector provided by this utility model embodiment
Post layer, flame are located on the axis of parabolic cylinder layer or semicolumn layer, particularly focal point, make the light of flame emission through reflector layer
Reflect to form the reflected light being parallel to each other, it is ensured that the concordance of reflection light direction, be not in multiple reflections, be easy to reflected light collection
Middle received by photomultiplier tube, while reducing baseline noise.
4) two openings of reflector layer are extended to branch by the flame photometric detector provided by this utility model embodiment
The interior intracavity of housing, makes the light of flame emission be directly entered in branch's housing cavity and be received by photomultiplier tube, it is to avoid light
Loss.
Description of the drawings
In order to be illustrated more clearly that this utility model specific embodiment or technical scheme of the prior art, below will
Accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, retouch below
Accompanying drawing in stating is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying creation
Property work on the premise of, can be obtaining other accompanying drawings according to these accompanying drawings.
Fig. 1 is the side sectional view of the flame photometric detector described in this utility model.
Fig. 2 bows to sectional view for flame photometric detector described in this utility model.
Reference：
1- reflector layers；2- illuminated chambers；3- ignition coils；4- main casings；5- branches housing；6- optical filters；7- photomultiplier transits
Pipe；8- fin；9- heating members；10- nozzles；11- helps fuel gas inlet；12- combustible gas imports；13- carrier gas inlets；14- reflects
Area.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of this utility model, rather than whole embodiments.Embodiment in based on this utility model, this
The every other embodiment obtained under the premise of creative work is not made by field those of ordinary skill, belongs to this practicality
Novel protected scope.
In description of the present utility model, it should be noted that term " " center ", " on ", D score, "left", "right", " perpendicular
Directly ", the orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are only
For the ease of describe this utility model and simplify description, rather than indicate or hint indication device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in this utility model.
As long as additionally, involved technical characteristic in this utility model different embodiments disclosed below is each other
Do not constitute conflict can just be combined with each other.
This utility model provides a kind of flame photometric detector, as depicted in figs. 1 and 2, including main casing 4, is arranged at
Illuminated chamber 2 inside main casing 4 and can receive the transmitting of 2 Flame of illuminated chamber light photomultiplier tube 7, also include reflective
Device, is arranged in illuminated chamber 2, is connected including body and with body and the reflector layer 1 to the bending of body direction, reflector layer ring
The echo area 14 being open towards photomultiplier tube 7 is surrounded around flame, so that the light of flame emission reflexes to photoelectricity times through reflector layer 1
Increase at pipe 7.In the present embodiment, body is flame retardant coating, and located at fire resisting layer surface, flame retardant coating can be quartz layer to the plating of reflector layer 1,
Reflector layer can be Ag layers, and reflector layer is parabolic cylinder layer；In another embodiment, flame retardant coating can be stainless steel layer, and reflector layer is
Semicolumn layer.
In above-mentioned flame photometric detector, by arranging reflex reflector in illuminated chamber 2, and reflex reflector include body with
And be connected with the body and the reflector layer 1 to body direction bending, and the reflector layer surrounds opening court around flame
To the echo area 14 of the photomultiplier tube 7, flame reflexes to photomultiplier tube through the reflector layer 1 to the light that surrounding is launched
Place, and received by photomultiplier tube 7.To light line reflection thoroughly, light smoothly can be received by photomultiplier tube 7 for above-mentioned setting, and
Scattering will not be blocked to fall, the sensitivity of flame photometric detector is finally improved.
On the basis of above-mentioned technical proposal, the opening of reflector layer 1 is fitted with the inwall of illuminated chamber 2.By above-mentioned
Arrange, the light of flame emission is not caused to illuminated chamber 2 from the gap scatter between the side inwall of reflector layer 1 and illuminated chamber 2
Loss, and then the light of flame emission is made by 7 effective reception of photomultiplier tube.
Further, flame will be made to be located on the axis of the parabolic cylinder layer or the semicolumn layer, preferably in Jiao
At point, make the light of flame emission the reflected light being parallel to each other be reflected to form through reflector layer 1, be not in multiple reflections, it is ensured that anti-
The concordance of light direction is penetrated, is easy to reflected light to concentrate and is received by photomultiplier tube, while reducing baseline noise.
On the basis of above-mentioned technical proposal, the axial direction side of the axial direction of parabolic cylinder layer or semicolumn layer and illuminated chamber 2
To consistent, and the bottom of parabolic cylinder layer or semicolumn layer is fitted with the bottom of illuminated chamber 2, the bottom of illuminated chamber 2 open up to
A few nozzle 10, so that combustible gas, combustion-supporting gas and carrier gas enter echo area 14 through nozzle 10, and by being arranged at illuminated chamber 2
The ignition coil 3 of side wall lights gaseous mixture, makes flame burn in echo area 14.
Further, also include helping fuel gas inlet 11, combustible gas import 12 and carrier gas inlet 13, help fuel gas inlet 11 with
Illuminated chamber 2 is connected, and combustible gas import 12 and carrier gas inlet 13 are connected with nozzle 10.
On the basis of above-mentioned technical proposal, also include branch's housing 5, including opening end, closed end and by opening end
The inner chamber of closed end is extended to, opening end is tightly connected with main casing 4, so that inner space illuminated chamber 2, and the interior accent of inner chamber
Adaptation opening, photomultiplier tube 7 are arranged in inner chamber near closed end.
Further, branch's housing 5 is integrally formed with main casing 4.
Preferably, two openings extend to the interior intracavity of branch's housing 5, make the light of flame emission be directly entered branch
Received by photomultiplier tube in housing cavity, it is to avoid the loss of light.
Further, height hs of the axial height H of reflector layer 1 not less than the opening end of branch's housing 5, in this embodiment party
In formula, the axial height H of reflector layer 1 is highly consistent with the opening end of branch housing 5, radial width G of reflector layer 1 and branch
The width g of the opening end of housing 5 is consistent.
On the basis of above-mentioned technical proposal, also include optical filter 6, be arranged at intracavity and segmentation inner chamber in branch's housing 5；
Fin 8, is arranged at 5 outer wall of branch's housing and stretches out；
Heating member 9, is embedded in main casing 4 and near illuminated chamber 2, so that the steam produced in combustion process is non-condensing.
Further, reflex reflector can be fixed in illuminated chamber 2 by connected mode of the prior art, and such as clip is fixed
Or set nut fixation etc., will not be described here.
Conventional flame photometric detector is limited to 10-12g/s or is limited to 10-11g/s to the detection of S to the detection of P, using in
Flame photometric detector in state's patent documentation CN103226101A Flames photometric detector and this utility model embodiment enters
Row contrast, using identical test condition, detects to methanthiol, and the WDL-94 using southwestern chemical research institutes production
Trace sulfur analyzer, 5ml quantity tubes of arranging in pairs or groups, the former are limited to 0.02ppm to methanthiol detection, and baseline noise is larger, and the latter is to first
Mercaptan detection is limited to 0.01ppm, and baseline noise is low.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.Right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And thus extended obvious change or
Change among the protection domain that creates still in this utility model.
Claims (10)
1. a kind of flame photometric detector, including main casing (4), is arranged at the internal illuminated chamber (2) of main casing (4), Yi Jineng
Receive the photomultiplier tube (7) of the light of the illuminated chamber (2) Flame transmitting, it is characterised in that also include,
Reflex reflector, is arranged in the illuminated chamber (2), is connected including body and with the body and to the body direction
The reflector layer (1) of bending, the reflector layer surround the echo area (14) being open towards the photomultiplier tube (7) around flame,
So that the light of flame emission reflexes to the photomultiplier tube (7) place through the reflector layer (1).
2. flame photometric detector according to claim 1, it is characterised in that the opening of reflector layer (1) and institute
The inwall for stating illuminated chamber (2) fits.
3. flame photometric detector according to claim 1 and 2, it is characterised in that described reflector layer (1) is parabolic cylinder layer
Or semicolumn layer, flame is on the axis of the parabolic cylinder layer or the semicolumn layer.
4. flame photometric detector according to claim 3, it is characterised in that the parabolic cylinder layer or the semicolumn layer
Axial direction consistent with the axial direction of the illuminated chamber (2), and the bottom of the parabolic cylinder layer or the semicolumn layer with
The bottom of illuminated chamber (2) fits, and opens up at least one nozzle (10) in the bottom of the illuminated chamber (2), so that flammable
Gas, combustion-supporting gas and carrier gas enter echo area (14) through the nozzle (10), and by being arranged at the illuminated chamber (2) side wall
Ignition coil (3) light gaseous mixture, make flame the echo area (14) burn.
5. flame photometric detector according to claim 2, it is characterised in that also include,
Branch's housing (5), extends to the inner chamber of the closed end including opening end, closed end and by the opening end, described
Opening end is tightly connected with the main casing (4), so that illuminated chamber (2) described in the inner space, and the inner chamber of the inner chamber
The mouth adaptation opening, photomultiplier tube (7) are arranged in the inner chamber near described closed end.
6. flame photometric detector according to claim 5, it is characterised in that branch's housing (5) and the main casing
Body (4) is integrally formed.
7. flame photometric detector according to claim 5, it is characterised in that two openings extend to described point
Prop up the interior intracavity of housing (5).
8. flame photometric detector according to claim 5, it is characterised in that the axial height H of reflector layer (1) is not
Height h less than the opening end of branch's housing (5)；
Width g of radial width G of reflector layer (1) opening not less than the opening end of branch's housing (5).
9. flame photometric detector according to claim 5, it is characterised in that also include,
Optical filter (6), is arranged at branch's housing (5) interior intracavity and splits the inner chamber；
Fin (8), is arranged at branch's housing (5) outer wall and stretches out；
Heating member (9), is embedded in the main casing (4) and near the illuminated chamber (2), so that the water produced in combustion process
Vapour is non-condensing.
10. flame photometric detector according to claim 1, it is characterised in that the body is flame retardant coating, described reflective
Layer (1) plating is located at the fire resisting layer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944697.2U CN206020356U (en) | 2016-08-25 | 2016-08-25 | A kind of flame photometric detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944697.2U CN206020356U (en) | 2016-08-25 | 2016-08-25 | A kind of flame photometric detector |
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| Publication Number | Publication Date |
|---|---|
| CN206020356U true CN206020356U (en) | 2017-03-15 |
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ID=58252015
Family Applications (1)
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|---|---|---|---|
| CN201620944697.2U Active CN206020356U (en) | 2016-08-25 | 2016-08-25 | A kind of flame photometric detector |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220747A (en) * | 2018-11-27 | 2020-06-02 | 中国科学院大连化学物理研究所 | Sulfur response signal enhancement assembly of flame photometric detector and application thereof |
| CN111238636A (en) * | 2018-11-29 | 2020-06-05 | 中国科学院大连化学物理研究所 | Silicon photoelectric detection assembly for flame photometric detector |
-
2016
- 2016-08-25 CN CN201620944697.2U patent/CN206020356U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220747A (en) * | 2018-11-27 | 2020-06-02 | 中国科学院大连化学物理研究所 | Sulfur response signal enhancement assembly of flame photometric detector and application thereof |
| CN111220747B (en) * | 2018-11-27 | 2022-03-15 | 中国科学院大连化学物理研究所 | Sulfur response signal enhancement assembly of flame photometric detector and application thereof |
| CN111238636A (en) * | 2018-11-29 | 2020-06-05 | 中国科学院大连化学物理研究所 | Silicon photoelectric detection assembly for flame photometric detector |
| CN111238636B (en) * | 2018-11-29 | 2021-09-07 | 中国科学院大连化学物理研究所 | Silicon photoelectric detection assembly for flame photometric detector |
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Legal Events
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100080 9th floor, Dahang Jiye building, No.1 building, 33 Renmin North Road, Haidian District, Beijing Patentee after: Beijing Haixin Energy Technology Co.,Ltd. Address before: 100080, Beijing, Haidian District people's Congress Road 33, the big line foundation building 9 floor Patentee before: BEIJING SANJU ENVIRONMENTAL PROTECTION & NEW MATERIALS Co.,Ltd. |
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| CP03 | Change of name, title or address |