CN219348762U - Optical chamber structure for liquid chromatograph detector - Google Patents
Optical chamber structure for liquid chromatograph detector Download PDFInfo
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- CN219348762U CN219348762U CN202221626955.4U CN202221626955U CN219348762U CN 219348762 U CN219348762 U CN 219348762U CN 202221626955 U CN202221626955 U CN 202221626955U CN 219348762 U CN219348762 U CN 219348762U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 100
- 239000007788 liquid Substances 0.000 title claims abstract description 25
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims abstract description 49
- 229910052805 deuterium Inorganic materials 0.000 claims abstract description 49
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 39
- 239000010937 tungsten Substances 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to an optical chamber structure for a liquid chromatograph detector, which comprises an optical chamber, wherein a first through hole and a second through hole which are communicated with the inside of the optical chamber are respectively arranged on two opposite sides of the optical chamber, and the first through hole and the second through hole are coaxially arranged; the deuterium lamp is arranged in the light chamber, a transmission window coaxial with the first through hole is arranged on the deuterium lamp, and light generated by the deuterium lamp is emitted into the first through hole from the transmission window; the tungsten lamp is arranged in the second through hole, the light path of light emitted by the tungsten lamp is coaxial with the first through hole, and the light emitted by the tungsten lamp is emitted into the first through hole through the transmission window. According to the optical chamber structure, the deuterium lamp and the tungsten lamp are coaxially arranged, the deuterium lamp does not need to be turned off when the detection of the extreme ultraviolet band is carried out, the instability of a light source and a system caused by repeatedly switching the deuterium lamp is avoided, and the accuracy of a detection result is ensured; meanwhile, the switching device is not required to be used for switching the double light sources, so that the structure is simplified, the occupied space is reduced, the manufacturing and using costs are reduced, and the device is suitable for practicality.
Description
Technical Field
The utility model relates to the technical field of liquid chromatograph detection devices, in particular to an optical chamber structure for a liquid chromatograph detector.
Background
The detector in the high-pressure liquid chromatograph is mainly used for detecting the concentration change of the components separated by the chromatographic column so as to perform qualitative and quantitative analysis. The scanning detector can be mainly divided into a light chamber, a monochromator and a flow cell.
The light chamber part of the existing detector is generally only provided with a deuterium lamp, and can only detect ultraviolet bands, or a tungsten lamp and a deuterium lamp are arranged in one light chamber at the same time, but the tungsten lamp and the deuterium lamp are arranged at a certain angle, and the switching of light sources in the detection process is realized through a series of switching mechanisms, so that the device has the advantages of complex structure, large space occupation rate and inconvenient installation and maintenance.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to overcome the defect that the light chamber part of the detector in the high-pressure liquid chromatograph in the prior art is generally only provided with a deuterium lamp and can only detect ultraviolet wave bands; or a tungsten lamp and a deuterium lamp are arranged in one optical chamber at the same time, but the tungsten lamp and the deuterium lamp are arranged at a certain angle, and the switching of the light source in the detection process is realized through a series of conversion mechanisms, so that the device has the problems of complex structure, large space occupation rate and inconvenient installation and maintenance.
In order to solve the technical problems, the utility model provides an optical chamber structure for a liquid chromatograph detector, which comprises,
the optical chamber comprises an internal cavity, a first through hole and a second through hole which are communicated with the inside of the optical chamber are respectively arranged on two opposite sides of the optical chamber, and the first through hole and the second through hole are coaxially arranged;
the deuterium lamp is arranged in the light chamber, a transmission window coaxial with the first through hole is arranged on the deuterium lamp, one side, close to the first through hole, of the transmission window is an emitting end, one side, close to the second through hole, of the transmission window is an incident end, and light generated by the deuterium lamp is emitted into the first through hole from the emitting end;
the tungsten lamp is arranged in the second through hole, the light path of light emitted by the tungsten lamp is coaxial with the first through hole, and the light emitted by the tungsten lamp is emitted from the incident end, passes through the transmission window, and is emitted from the emitting end into the first through hole.
In one embodiment of the present utility model, an optical chamber barrel is coaxially disposed in the first through hole, the optical chamber barrel is tubular, and a first lens group is disposed in the optical chamber barrel.
In one embodiment of the utility model, the optical chamber comprises a box body with an open top and a cover plate, wherein the cover plate is arranged at the open end of the box body, and the first through hole and the second through hole are respectively arranged on two opposite side surfaces of the box body.
In an embodiment of the utility model, the optical lens further comprises a lens seat, wherein the lens seat is arranged inside the optical chamber and connected with the cover plate, a through hole coaxial with the second through hole is formed in the lens seat, and a second lens group is arranged in the through hole.
In one embodiment of the present utility model, the through hole is a stepped through hole, and the through hole includes a middle section, and a first stepped hole section and a second stepped hole section respectively located at two ends of the middle section, wherein the diameters of the first stepped hole section and the second stepped hole section are larger than the diameter of the middle section.
In one embodiment of the utility model, a circular groove is arranged at the top of the optical chamber, a third through hole communicated with the interior of the optical chamber is coaxially arranged at the bottom of the groove, an annular lamp holder is sleeved at the top of the deuterium lamp, the deuterium lamp extends into the interior of the optical chamber from the third through hole, and the lamp holder of the deuterium lamp is embedded in the groove and is connected with the optical chamber.
In an embodiment of the utility model, the first lens group includes two convex lenses, the two convex lenses are coaxially and symmetrically disposed in the optical chamber lens barrel, and convex surfaces of the two convex lenses are disposed opposite to each other.
In an embodiment of the utility model, the second lens group includes two convex lenses, the two convex lenses are coaxially and symmetrically disposed in the through hole, and convex surfaces of the two convex lenses are disposed opposite to each other.
In one embodiment of the utility model, the side surfaces of the optical chamber are uniformly provided with a plurality of mutually parallel heat dissipation plates at intervals.
In one embodiment of the utility model, the optical cell barrel is connected to the optical cell by a flange.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the optical chamber structure for the liquid chromatograph detector, the tungsten lamp and the deuterium lamp are arranged in the same optical chamber, and the tungsten lamp and the deuterium lamp are coaxially arranged, so that the optical paths of light rays emitted by the tungsten lamp and the deuterium lamp are coaxial; specifically, the light emitted by the tungsten lamp can finally be injected into the monochromator assembly through the transmission window on the deuterium lamp; when the ultraviolet wave band is detected, the deuterium lamp is turned on, and the tungsten lamp is turned off; when the detection beyond the ultraviolet wave band is carried out, the tungsten lamp is turned on, light generated by the tungsten lamp is converged to the transmission window and is emitted into the monochromator assembly from the emitting end, and the deuterium lamp does not need to be turned off in the process, so that the instability of a light source and a system caused by repeatedly switching the deuterium lamp is avoided, and the accuracy of a detection result is further ensured; meanwhile, compared with the existing detection device, the double-lamplight source switching device does not need to be used for switching the double-lamplight source, the whole structure of the optical chamber is simplified, the occupied space is reduced, the manufacturing and using costs are reduced, and the double-lamplight source switching device is suitable for practicality.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a perspective view of the optical cell structure for a liquid chromatograph detector in accordance with a preferred embodiment of the present utility model;
FIG. 2 is a top view of the optical cell structure for the liquid chromatograph detector shown in FIG. 1;
FIG. 3 is a cross-sectional view of the optical cell structure for the liquid chromatograph detector shown in FIG. 1;
FIG. 4 is an enlarged view of portion A of the optical cell structure for the liquid chromatograph detector shown in FIG. 3;
fig. 5 is a schematic view of the optical cell structure for the liquid chromatograph detector shown in fig. 1.
Description of the specification reference numerals: 1. an optical chamber; 11. a first through hole; 12. a second through hole; 13. a case; 14. a cover plate; 15. a groove; 16. a third through hole; 17. a heat dissipation plate; 2. a deuterium lamp; 21. a transmission window; 22. a lamp holder; 3. a tungsten lamp; 4. an optical chamber barrel; 41. a first lens group; 5. a lens holder; 51. and a second lens group.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1 to 5, an optical cell structure for a liquid chromatograph detector of the present utility model includes,
the optical chamber 1, the optical chamber 1 comprises an internal cavity, a first through hole 11 and a second through hole 12 which are communicated with the interior of the optical chamber 1 are respectively arranged on two opposite sides of the optical chamber 1, and the first through hole 11 and the second through hole 12 are coaxially arranged;
the deuterium lamp 2 is arranged in the optical chamber 1, a transmission window 21 coaxial with the first through hole 11 is arranged on the deuterium lamp 2, one side of the transmission window 21 close to the first through hole 11 is an emission end, one side of the transmission window 21 close to the second through hole 12 is an incident end, and light generated by the deuterium lamp 2 is emitted into the first through hole 11 from the emission end;
the tungsten lamp 3, the tungsten lamp 3 is set up in the second through-hole 12, the light path of the light that the tungsten lamp 3 launches is coaxial with first through-hole 11, and the light that the tungsten lamp 3 launched is penetrated from the incident end, is penetrated through the transmission window 21 and is penetrated into first through-hole 11 from the said exit end.
Specifically, the optical chamber 1 includes a box 13 with an open top and a cover plate 14, where the cover plate 14 is disposed at one end of the box 13 with an open top to form an internal cavity; the first through hole 11 and the second through hole 12 which are communicated with the inside of the box 13 are symmetrically formed on two opposite side surfaces of the box 13, the first through hole 11 and the second through hole 12 are coaxially arranged, the first through hole 11 is coaxially provided with the optical chamber lens cone 4, one end of the optical chamber lens cone 4 is connected with the first through hole 11, and the other end is connected with the monochromator component. The deuterium lamp 2 is arranged at one side of the box 13 close to the first through hole 11, a transmission window 21 coaxial with the first through hole 11 is arranged on the deuterium lamp 2, one side of the transmission window 21 close to the first through hole 11 is an emission end, one side of the transmission window 21 close to the second through hole 12 is an incident end, and light rays emitted by the deuterium lamp 2 are emitted into the first through hole 11 from the emission end; the tungsten lamp 3 is arranged in the second through hole 12, the light path of the light emitted by the tungsten lamp 3 is positioned on the same axis with the first through hole 11 and the second through hole 12, a second lens group 51 is arranged between the tungsten lamp 3 and the deuterium lamp 2, the light emitted by the tungsten lamp 3 is directly incident from the incident end through the second lens group 51, and the light is emitted into the first through hole 11 from the emitting end through the transmission window 21.
When the ultraviolet wave band is detected, the deuterium lamp 2 is turned on, and the tungsten lamp 3 is turned off; when the detection beyond the ultraviolet wave band is carried out, the tungsten lamp 3 is turned on, light generated by the tungsten lamp 3 is converged to the transmission window 21 and is emitted into the monochromator assembly from the emission end, and the deuterium lamp 2 does not need to be turned off in the process, so that the instability of a light source and a system caused by repeatedly switching the deuterium lamp 2 is avoided, and the accuracy of a detection result is ensured; meanwhile, compared with the existing detection device, the double-lamplight source switching device does not need to be used for switching the double-lamplight source, so that the structure is simplified, the occupied space is reduced, and the manufacturing and using costs are reduced; moreover, the optical chamber structure of the utility model can be applied to other instruments such as spectrophotometers, has higher universality and is suitable for practical use.
As shown in fig. 3 and 5, further, the first through hole 11 is coaxially provided with the optical chamber barrel 4, the optical chamber barrel 4 is tubular, and the optical chamber barrel 4 is provided with the first lens group 41 therein. Specifically, one end of the optical chamber barrel 4 is coaxially connected with the first through hole 11, the other end is connected with the monochromator, and the optical chamber barrel 4 is provided with a first lens group 41; it is conceivable that the light rays incident into the optical chamber barrel 4 pass through the first lens group 41 and then are collimated into the entrance slit of the monochromator.
Further, the optical chamber 1 includes a box 13 with an open top and a cover 14, the cover 14 is disposed at an open end of the box 13, and the first through hole 11 and the second through hole 12 are respectively disposed on two opposite sides of the box 13.
Further, the optical device further comprises a lens seat 5, the lens seat 5 is arranged in the optical chamber 1 and is connected with the cover plate 14, a through hole coaxial with the second through hole 12 is formed in the lens seat 5, and a second lens group 51 is arranged in the through hole.
Specifically, by arranging the lens holder 5 to carry the second lens group 51, the optical path of the tungsten lamp 3 can be adjusted by adjusting the position of the lens holder 5, so as to ensure that the light emitted by the tungsten lamp 3 can be converged at the transmission window 21 and finally injected into the monochromator. More preferably, a T-shaped groove extending along the axial direction of the second through hole 12 may be disposed at the bottom of the cover plate 14, and a T-shaped protrusion matched with the T-shaped groove may be disposed at the top of the lens seat 5, and the lens seat 5 is movably disposed in the T-shaped groove through the T-shaped protrusion, so that a worker can conveniently adjust the position of the second lens group 51 according to different situations.
Further, the through hole is a step through hole, and comprises a middle section, and a first step hole section and a second step hole section which are respectively positioned at two ends of the middle section, wherein the diameters of the first step hole section and the second step hole section are larger than the diameter of the middle section. Specifically, the two convex lenses of the second lens group 51 are symmetrically disposed in the first stepped hole section and the second stepped hole section; it is conceivable that the step surfaces formed by the first step hole section and the second step hole section and the middle section respectively can limit two convex lenses, so that the convex lenses are convenient to install and replace, and the working efficiency is improved.
Further, a circular groove 15 is arranged at the top of the optical chamber 1, a third through hole 16 communicated with the interior of the optical chamber is coaxially arranged at the bottom of the groove 15, an annular lamp holder 22 is sleeved at the top of the deuterium lamp 2, the deuterium lamp 2 extends into the interior of the optical chamber 1 from the third through hole 16, and the lamp holder 22 of the deuterium lamp 2 is embedded into the groove 15 and is connected with the optical chamber 1.
Specifically, a circular groove 15 is arranged on the cover plate 14 of the optical chamber 1, and a third through hole 16 communicated with the interior of the optical chamber 1 is coaxially arranged at the bottom of the groove 15; the top (connection end) of the deuterium lamp 2 is sleeved with an annular lamp holder 22 matched with the groove 15, and the deuterium lamp 2 extends into the light chamber 1 from the third through hole 16 and is connected with the cover plate 14 at the groove 15 through the lamp holder 22 at the top. It is conceivable that the connection mode of the lamp holder 22 and the groove 15 is convenient for an operator to install the deuterium lamp 2, and meanwhile, the connection end of the deuterium lamp 2 is located at the outer side of the optical chamber 1, so that connection and maintenance of a circuit are convenient. It is also conceivable that the tungsten lamp 3 is connected to the optical chamber 1 at the second through hole 12 on the optical chamber 1, and the wire end of the tungsten lamp 3 is also located outside the optical chamber 1, so that connection and maintenance of the wire of the tungsten lamp 3 are facilitated.
Further, the first lens group 41 includes two convex lenses, which are coaxially and symmetrically disposed in the optical chamber barrel 4, and convex surfaces of the two convex lenses are disposed opposite to each other. The optical fiber entering the optical chamber barrel 4 can be finally collimated into the entrance slit of the monochromator by providing the first lens group 41.
Further, the second lens group 51 includes two convex lenses, the two convex lenses are coaxially and symmetrically disposed in the through hole, and convex surfaces of the two convex lenses are disposed opposite to each other. The provision of the second lens group 51 ensures that the light emitted from the tungsten lamp 3 is directed into the transmission window 21.
As shown in fig. 2, a plurality of heat dissipation plates 17 are provided on the side surface of the optical chamber 1 at uniform intervals. The plurality of heat dissipation plates 17 arranged can increase the heat dissipation area of the optical chamber 1 and improve the heat dissipation performance of the optical chamber 1; meanwhile, the heat dissipation plate 17 can be made of metal with better heat conduction performance so as to further improve the heat dissipation capacity of the optical chamber 1.
Further, the optical chamber barrel 4 is connected to the optical chamber 1 via a flange.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. An optical cell structure for a liquid chromatograph detector, characterized by: comprising the steps of (a) a step of,
the optical chamber comprises an internal cavity, a first through hole and a second through hole which are communicated with the inside of the optical chamber are respectively arranged on two opposite sides of the optical chamber, and the first through hole and the second through hole are coaxially arranged;
the deuterium lamp is arranged in the light chamber, a transmission window coaxial with the first through hole is arranged on the deuterium lamp, one side, close to the first through hole, of the transmission window is an emitting end, one side, close to the second through hole, of the transmission window is an incident end, and light generated by the deuterium lamp is emitted into the first through hole from the emitting end;
the tungsten lamp is arranged in the second through hole, the light path of light emitted by the tungsten lamp is coaxial with the first through hole, and the light emitted by the tungsten lamp is emitted from the incident end, passes through the transmission window, and is emitted from the emitting end into the first through hole.
2. The optical cell structure for a liquid chromatograph detector according to claim 1, characterized in that: an optical chamber lens barrel is coaxially arranged in the first through hole, the optical chamber lens barrel is tubular, and a first lens group is arranged in the optical chamber lens barrel.
3. The optical cell structure for a liquid chromatograph detector according to claim 1, characterized in that: the light chamber comprises a box body with an open top and a cover plate, the cover plate is arranged at the open end of the box body, and the first through hole and the second through hole are respectively formed in two opposite side surfaces of the box body.
4. A light chamber structure for a liquid chromatograph detector as in claim 3, wherein: the lens seat is arranged in the optical chamber and connected with the cover plate, a through hole coaxial with the second through hole is formed in the lens seat, and a second lens group is arranged in the through hole.
5. The optical cell structure for a liquid chromatograph detector according to claim 4, wherein: the through hole is a step through hole, the through hole comprises a middle section, and a first step hole section and a second step hole section which are respectively positioned at two ends of the middle section, and the diameters of the first step hole section and the second step hole section are larger than the diameter of the middle section.
6. The optical cell structure for a liquid chromatograph detector according to claim 1, characterized in that: the top of the optical chamber is provided with a circular groove, the bottom of the groove is coaxially provided with a third through hole communicated with the inside of the optical chamber, the top of the deuterium lamp is sleeved with an annular lamp holder, the deuterium lamp stretches into the inside of the optical chamber from the third through hole, and the lamp holder of the deuterium lamp is embedded into the groove and is connected with the optical chamber.
7. The optical cell structure for a liquid chromatograph detector according to claim 2, characterized in that: the first lens group comprises two convex lenses, the two convex lenses are coaxially and symmetrically arranged in the optical chamber lens cone, and the convex surfaces of the two convex lenses are oppositely arranged.
8. The optical cell structure for a liquid chromatograph detector according to claim 4, wherein: the second lens group comprises two convex lenses, the two convex lenses are coaxially and symmetrically arranged in the through hole, and the convex surfaces of the two convex lenses are oppositely arranged.
9. The optical cell structure for a liquid chromatograph detector according to claim 1, characterized in that: the side of the optical chamber is uniformly provided with a plurality of mutually parallel radiating plates at intervals.
10. The optical cell structure for a liquid chromatograph detector according to claim 2, characterized in that: the optical chamber lens cone is connected with the optical chamber through a flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221626955.4U CN219348762U (en) | 2022-06-27 | 2022-06-27 | Optical chamber structure for liquid chromatograph detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221626955.4U CN219348762U (en) | 2022-06-27 | 2022-06-27 | Optical chamber structure for liquid chromatograph detector |
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| Publication Number | Publication Date |
|---|---|
| CN219348762U true CN219348762U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221626955.4U Active CN219348762U (en) | 2022-06-27 | 2022-06-27 | Optical chamber structure for liquid chromatograph detector |
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| Country | Link |
|---|---|
| CN (1) | CN219348762U (en) |
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- 2022-06-27 CN CN202221626955.4U patent/CN219348762U/en active Active
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