CN115753622A - Closed ICP-AES light path connecting device - Google Patents
Closed ICP-AES light path connecting device Download PDFInfo
- Publication number
- CN115753622A CN115753622A CN202211594299.9A CN202211594299A CN115753622A CN 115753622 A CN115753622 A CN 115753622A CN 202211594299 A CN202211594299 A CN 202211594299A CN 115753622 A CN115753622 A CN 115753622A
- Authority
- CN
- China
- Prior art keywords
- optical path
- icp
- light
- aes
- light path
- 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.)
- Pending
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a closed ICP-AES optical path connecting device, which comprises: the optical path receiving module comprises a connecting flange, an optical path receiving module and an adjusting module, wherein the connecting flange is positioned at an optical transmission position, the optical path receiving module is used for receiving optical signals, the connecting flange is connected with the optical path receiving module, the adjusting module is arranged on the connecting flange, is positioned on a plane perpendicular to the axis of the optical path receiving module and is positioned on the periphery of the optical path receiving module so as to press the optical path receiving module, and the axis position of the optical path receiving module is adjusted. The closed ICP-AES optical path connecting device can effectively ensure the collimation of an optical chamber, a convex mirror and a sample flame core of an ICP-AES instrument, improve the installation precision of equipment, ensure the test performance of the instrument, and reduce the workload and the cost of the design of a test device, experiments and the transformation of the existing instrument.
Description
Technical Field
The invention belongs to the field of radioactive sample analysis, and particularly relates to a closed ICP-AES optical path connecting device.
Background
The post-treatment analysis technology is the 'eye' of the post-treatment process and is the key for ensuring the safe and stable operation of the process. In the uranium-based post-treatment Purex (Purex) process, an Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) method is used to analyze the element content of a radioactive sample. With the clear requirements of post-processing analysis and the development of equipment, a closed ICP-AES apparatus has been derived, in which a sample introduction system, part of an excitation light source (including an induction coil, a torch tube and part of an air path) and part of an optical path are closed in a glove box, and other components are externally disposed, as shown in fig. 1, for an optical path connection device of the apparatus, the design key points are the sealing performance and optical signal transmission capability of an optical transmission component inside and outside the box, and the latter determines the detection performance of the apparatus.
At present, in consideration of the stability of post-processing analysis equipment, almost all closed ICP-AES adopt an unadjustable optical path connecting device to realize sample light transmission inside and outside a box body, although the mode has good sealing performance, is safe and reliable, the same processing precision is difficult to achieve due to different processing modes of a glove box and the connecting device, and processing errors inevitably exist; in addition, in the process of connecting the ICP-AES instrument and the ICP-AES instrument for use, due to the existence of welding thermal stress, mounting stress and the like, the deviation between the center of the optical path and the center of the sample flame can be caused, the intensity of the sample light received by the optical chamber of the analysis instrument is further reduced, and the lower detection limit is improved.
Therefore, a connection device capable of realizing multi-directional adjustment within a certain range is needed, and processing errors among the glove box, the connection device and the optical chamber of the analysis instrument are compensated, so that the optical chamber of the ICP-AES instrument, the convex lens and the flame center of the sample are aligned, and the optical chamber is ensured to receive a sample optical signal with enough intensity in the analysis process.
Disclosure of Invention
Aiming at the defects in the existing design, the invention aims to provide a closed ICP-AES optical path connecting device to compensate the processing errors among a glove box, a connecting device and an optical chamber of an analytical instrument.
In order to achieve the above purposes, the invention adopts the technical scheme that: a closed ICP-AES optical path connecting device comprises a connecting flange, an optical path receiving assembly and an adjusting assembly, wherein the connecting flange is located at an optical transmission position, the optical path receiving assembly is used for receiving optical signals, the connecting flange is connected with the optical path receiving assembly, the adjusting assembly is arranged on the connecting flange, is located on a plane perpendicular to the axis of the optical path receiving assembly and is located on the periphery of the optical path receiving assembly, and the adjusting assembly is used for jacking the optical path receiving assembly to adjust the axis position of the optical path receiving assembly.
Further, the number of the adjusting assemblies is three, and the three adjusting assemblies are all arranged on the connecting flange to press the light path receiving assembly from a first direction and a second direction, wherein the first direction and the second direction are perpendicular to each other.
Furthermore, the adjusting component comprises a base and an adjusting bolt, wherein the base is connected to the connecting flange and is positioned on the periphery of the light path receiving component; the adjusting bolt is in threaded connection with the base and is perpendicular to the axis of the light path receiving assembly, and the light path receiving assembly is pressed through threaded transmission between the adjusting bolt and the base.
Furthermore, the light path receiving assembly comprises a condenser, a light path receiver, a convex mirror, a rear cover plate, a flange connecting piece and a convex mirror fixing ring, wherein the light path receiver is hollow, one end of the light path receiver is connected with the condenser, and the end far away from the condenser is connected with the flange connecting piece; a penetrating light through hole is formed in the flange connecting piece, the light through hole is communicated with the light path receiver, an internal thread is arranged on the inner wall of one end, away from the light path receiver, of the light path receiver, the convex mirror fixing ring is arranged in the light through hole and positioned between the internal thread and the light path receiver, and the convex mirror is arranged in the convex mirror fixing ring; the rear cover plate is positioned at one end, far away from the convex lens, in the light through hole, is in threaded fit with the light through hole, is provided with a through hole communicated with the light through hole, and is abutted to the convex lens fixing ring.
Furthermore, a sealing gasket is arranged between the convex mirror fixing ring and the convex mirror.
Further, a flat mirror groove is further arranged in the optical path receiver, is positioned at one end of the optical path receiver close to the flange connecting piece, and can be selectively provided with a flat mirror.
Further, a flat mirror rear cover is arranged between the flat mirror and the convex mirror.
Further, a convex lens front cover is arranged between the convex lens and the light path receiver, and a sealing gasket is arranged between the convex lens front cover and the convex lens.
Further, a gas quick-connection interface is arranged on the light path receiver.
Further, the light path receiver is in threaded connection with the condenser, and the gas quick connection interface is located at one end, close to the flange connecting piece, of the light path receiver.
The invention has the following effects: the collimation of a light chamber, a convex mirror and a sample flame center of an ICP-AES instrument can be effectively ensured when closed ICP-AES equipment development and laboratory ICP-AES equipment closed transformation are carried out, the installation precision of the equipment is improved, the test performance of the instrument is ensured, and the workload and the cost of the design of a test device, the experiment and the transformation of the existing instrument are reduced; the split type light path receiving assembly is matched, the universality and maintainability of the design in different forms of equipment are further improved, the service life of the equipment is indirectly prolonged, and the economy of the equipment is improved.
Drawings
FIG. 1 is a schematic structural diagram of a closed ICP-AES device;
FIG. 2 is a schematic structural diagram of a closed ICP-AES optical path connecting device in the invention;
FIG. 3 is a schematic diagram of the optical path receiving assembly shown in FIG. 2;
description of reference numerals:
1. a connecting flange; 2. an optical path receiving component; 3. an adjustment assembly; 21. a condenser; 22. an optical path receiver; 23. a convex mirror; 24. a rear cover plate; 25. a flange connection; 26. a convex lens fixing ring; 231. a convex mirror front cover; 251. a light through hole; 253. a flat mirror; a mirror flattening rear cover; 254.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 2-3, the closed ICP-AES optical path connection apparatus provided by the present invention includes a connection flange 1, an optical path receiving component 2, and an adjusting component 3, wherein the optical path receiving component 2 is used for receiving an optical signal emitted after a sample is plasmatized, the connection flange 1 is connected with the optical path receiving component 2, the adjusting component 3 is disposed on the connection flange 1, is located on a plane perpendicular to an axis of the optical path receiving component 2, and is located at a periphery of the optical path receiving component 2, so as to press the optical path receiving component 2, and adjust an axis position of the optical path receiving component 2, thereby keeping an optical chamber of an ICP-AES instrument, the optical path receiving component 2, and a sample flame center aligned when a processing error exists in the closed ICP-AES apparatus.
It can be understood that the connecting flange 1 is connected to the optical transmission site of the closed ICP-AES, and the receiving and transmission of the sample optical signal are realized by connecting the optical path receiving component 2 to the connecting flange 1. In the present embodiment, the connection flange 1 is welded to the glove box.
It can be understood that the connection mode of the connection flange 1 and the optical path receiving component 2 may be any mode such as bolt connection, insertion connection, etc., as long as after the connection flange 1 is connected with the optical path receiving component 2, the relative position of the optical path receiving component 2 and the connection flange 1 can be finely adjusted by the adjusting component 3, so as to adjust the axis position of the optical path receiving component 2. In this embodiment, the connecting flange 1 is connected to the optical path receiving component 2 through a bolt, and after the connecting flange 1 is connected to the optical path receiving component 2, the adjusting component 3 presses against the periphery of the optical path receiving component 2, so as to achieve fine adjustment of the axis of the optical path receiving component 2.
Furthermore, a sealing ring is arranged between the optical path receiving component 2 and the connecting flange 1, so that the whole tightness is not influenced when the optical path receiving component 2 is subjected to fine adjustment after a radioactive sample is tested by closed analysis equipment.
Further, the number of the adjusting assemblies 3 is three, and the three adjusting assemblies 3 are all disposed on the connecting flange 1 to press the optical path receiving assembly 2 from a first direction and a second direction, wherein the first direction and the second direction are perpendicular to each other.
In this embodiment, the connection between the optical path receiving component 2 and the connecting flange 1 is circular, and the three adjusting components 3 are respectively located at the periphery of three of the four circular image limit points, so as to press the optical path receiving component 2 from two mutually perpendicular directions, thereby achieving the fine adjustment effect. In other embodiments, the connection position of the optical path receiving component 2 and the connecting flange 1 may have any shape as long as the three adjusting components 3 can press the optical path receiving component 2 from the first direction and the second direction, and the first direction is perpendicular to the second direction.
It should be understood that the number of the adjusting components 3 may also be 1, 2 or more, as long as the position of the axis of the optical path receiving component 2 can be finely adjusted by pressing the optical path receiving component 2 with the adjusting components 3.
Further, the adjusting component 3 includes a base and an adjusting bolt, the base is connected to the connecting flange 1 and is located on the periphery of the optical path receiving component 2. The adjusting bolt is in threaded connection with the base and is perpendicular to the axis of the light path receiving component 2, and the light path receiving component 2 is pressed through threaded transmission between the adjusting bolt and the base.
It can be understood that the adjusting component 3 may also be any structure such as an air cylinder, a push rod, etc., as long as it is disposed on the connecting flange 1 and can realize pressing against the optical path receiving component 2 to adjust the axial position of the optical path receiving component 2.
It can be understood that the maximum adjustment distance in one direction of the adjusting bolt is 3mm.
Further, the optical path receiving assembly 2 includes a condenser 21, an optical path receiver 22, a convex mirror 23, a rear cover plate 24, a flange connector 25 and a convex mirror fixing ring 26, the optical path receiver 22 is hollow, one end of the optical path receiver 22 is connected with the condenser 21, and the end far away from the condenser 21 is connected with the flange connector 25. The flange connecting piece 25 is provided with a through light hole 251 which penetrates through the flange connecting piece, the light hole 251 is communicated with the light path receiver 22, an internal thread is arranged on the inner wall far away from one end of the light path receiver 22, the convex lens fixing ring 26 is arranged in the light hole 251 and is positioned between the internal thread and the light path receiver 22, and the convex lens 23 is arranged in the convex lens fixing ring 26. The rear cover plate 24 is located at one end of the light through hole 251 far away from the convex lens 23, is in threaded fit with the light through hole 251, is provided with a through hole communicated with the light through hole 251, and abuts against the convex lens fixing ring 26, so that the position of the convex lens fixing ring 26 in the light through hole 251 along the axis direction of the light path receiver 22, namely, the distance between the convex lens 23 and the torch tube, is adjusted through threaded transmission.
It will be appreciated that the adjustment assembly 3 is located at the periphery of the flange connection 25 to press against the flange connection 25.
It can be understood that the screw thread fit between the back cover plate 24 and the light through hole 251 can push the convex lens fixing ring 26 to move on the axis of the light path receiver 22, so as to adjust the distance between the convex lens 23 and the torch tube, that is, the distance between the convex lens 23 and the torch tube can be adjusted by changing the dimension of the flange connector 25 and/or the back cover plate 24 along the axis of the light path receiver 22.
In this embodiment, to ensure the sealing effect, it is ensured that at least half of the threads of the rear cover plate 24 are screwed into the flange connection 25.
Further, a sealing gasket is provided between the convex lens fixing ring 26 and the convex lens 23 to ensure the overall sealing performance.
Further, a flat mirror groove is disposed in the optical path receiver 22, and a flat mirror 253 is disposed therein.
It can be understood that the inner diameter of the through hole at the front end of the optical path receiver 22 is smaller than the diameter of the lens (the convex lens 23 and the flat lens 253), so that the inner hole of the component can be used as a diaphragm to limit the imaging light beam and the field of view, reduce the interference of non-sample excitation light, and be beneficial to improving the resolution of the instrument.
It will be appreciated that the flat mirror groove and the flat mirror 253 can be set according to the purpose of the instrument, and the design purpose of the structure is: the sealing performance is enhanced while the transmission performance of the optical path is hardly changed, and the high-radiation glove box is suitable for high-medium-high-level glove boxes with high radioactivity and high sealing performance requirements.
Further, a flat mirror rear cover 254 is provided between the flat mirror 253 and the convex mirror 23.
It is understood that the flat mirror back cover 254 can be of any structure and material, as long as the flat mirror 253 can be fixed and the transmission of the optical signal is not affected.
Further, a convex lens front cover 231 is disposed between the convex lens 23 and the optical path receiver 22.
It can be understood that the front cover 231 of the convex lens can be any structure and any material, as long as it can fix the convex lens 23, and the mountable sealing washer can be pressed tightly with the convex lens, and does not affect the transmission of the optical signal.
Further, a gas quick-connection interface is arranged on the optical path receiver 22, and the interface is located at one end, close to the flange connector 25, of the optical path receiver 22, and is used for filling protective gas of an optical path, so that the influence of air on part of analysis sample backgrounds is reduced.
It is understood that the shielding gas can be nitrogen, helium, etc., and different gases can be selected according to specific requirements.
Further, the optical path receiver 22 is screwed with the condenser 21.
Further, the optical path receiver 22 is connected with the flange connector 25 by a screw thread.
Further, the condenser 21 is a ceramic condenser.
The working principle of the invention is as follows: when the glove box is connected with an ICP-AES instrument through an optical path, errors are inevitably introduced due to the difference of processing modes among different components, and then the relative positions of the optical path and the torch tube are changed, so that the installation and design sizes are inconsistent, the center of the optical path cannot be accurately aligned to the flame center of a sample and the strongest sample optical signal can be obtained, the intensity of the sample light reaching the optical chamber through the convex lens 23 is reduced, the lower limit of equipment detection is improved, the influence can be further deepened along with the long-term existence of installation stress and the long-term use and aging of the components, and the analysis capability of the later stage of the service life of the equipment is influenced. Therefore, the device is introduced to compensate errors introduced by different components due to processing mode differences, and high detection capability of the equipment in the whole life cycle is maintained. When the closed ICP-AES light path connecting device is installed, the light path receiving component 2 is connected to the connecting flange 1, the light path receiving component 2 is connected to the light chamber epitaxial interface of the ICP-AES instrument, and fine adjustment is performed through the adjusting component 3 according to the relation between the light chamber of the ICP-AES instrument, the convex lens 23 and the sample flame center until the three are collimated.
According to the embodiment, the collimation of the optical chamber, the convex mirror and the sample flame center of the ICP-AES instrument can be effectively ensured when closed ICP-AES equipment is developed and closed and transformed in laboratory ICP-AES equipment, the installation precision of the equipment is improved, the test performance of the instrument is ensured, and the workload and the cost of the design of a test device, the experiment and the transformation of the existing instrument are reduced; the combination of the light path receiving components which can be flexibly combined further improves the universality and maintainability of the design in different forms of equipment, indirectly prolongs the service life of the equipment and improves the economy of the equipment.
Simultaneously, adopt quick detachable modular design, the flexibility is high, and the light path receiving assembly of this design is split type, and the light path receiver can be demolishd by the glove box inboard fast, when guaranteeing the leakproofness, and convenience of customers cleans, maintains the convex mirror, and better convex mirror smooth finish helps keeping the testing sensitivity of analytical instrument when using for a long time.
In addition, after the welding of the connecting flange 1 and the glove box is completed, the optical path receiving assembly can be replaced before radioactive sample analysis is carried out, and other use requirements are met while the analysis performance of an instrument is ensured.
In addition, the device is small in size, the axial length of the device is 1.5cm (the thickness of the connecting flange is 1) more than that of the device adopting an unadjustable design, and the thickened part is positioned outside the glove box and does not occupy the limited space in the glove box; the diameter of an opening at the glove box is only 6mm larger than that of the opening when the glove box is not designed in an adjustable mode, and the rest of the openings do not occupy more space, so that the reasonable utilization of the limited space in the glove box is ensured.
The method and system of the present invention are not limited to the embodiments described in the detailed description, and those skilled in the art can derive other embodiments according to the technical solutions of the present invention, which also belong to the technical innovation scope of the present invention.
Claims (10)
1. A closed ICP-AES optical path connecting device is characterized by comprising:
the optical path receiving module comprises a connecting flange, an optical path receiving module and an adjusting module, wherein the connecting flange is positioned at an optical transmission position, the optical path receiving module is used for receiving optical signals, the connecting flange is connected with the optical path receiving module, the adjusting module is arranged on the connecting flange, is positioned on a plane perpendicular to the axis of the optical path receiving module and is positioned on the periphery of the optical path receiving module so as to press the optical path receiving module, and the axis position of the optical path receiving module is adjusted.
2. The enclosed ICP-AES optical path connection apparatus as claimed in claim 1, wherein:
the number of the adjusting assemblies is three, and the three adjusting assemblies are all arranged on the connecting flange so as to press the light path receiving assembly from a first direction and a second direction, wherein the first direction and the second direction are perpendicular to each other.
3. The enclosed ICP-AES optical path connection apparatus as claimed in claim 1, wherein:
the adjusting component comprises a base and an adjusting bolt, and the base is connected to the connecting flange and is positioned on the periphery of the light path receiving component; the adjusting bolt is in threaded connection with the base and is perpendicular to the axis of the light path receiving assembly, and the light path receiving assembly is pressed through threaded transmission between the adjusting bolt and the base.
4. The enclosed ICP-AES optical path connection apparatus as claimed in claim 1, wherein:
the light path receiving assembly comprises a condenser, a light path receiver, a convex mirror, a rear cover plate, a flange connecting piece and a convex mirror fixing ring, the light path receiver is hollow, one end of the light path receiver is connected with the condenser, and the end far away from the condenser is connected with the flange connecting piece;
a light through hole penetrating through the flange connecting piece is formed in the flange connecting piece, the light through hole is communicated with the light path receiver, an internal thread is arranged on the inner wall of one end, away from the light path receiver, of the flange connecting piece, the convex mirror fixing ring is arranged in the light through hole and located between the internal thread and the light path receiver, and the convex mirror is arranged in the convex mirror fixing ring;
the rear cover plate is positioned at one end, far away from the convex lens, in the light through hole, is in threaded fit with the light through hole, is provided with a through hole communicated with the light through hole, and is abutted to the convex lens fixing ring.
5. The closed ICP-AES optical path connection apparatus as claimed in claim 4, wherein:
and a sealing gasket is arranged between the convex mirror fixing ring and the convex mirror.
6. The enclosed ICP-AES optical path connection apparatus as claimed in claim 4, wherein:
and a flat mirror groove is also arranged in the light path receiver, is positioned at one end of the light path receiver close to the flange connecting piece, and can be selectively provided with a flat mirror.
7. An enclosed ICP-AES optical path connection apparatus as claimed in claim 6, wherein:
and a flat mirror rear cover is also arranged between the flat mirror and the convex mirror.
8. The enclosed ICP-AES optical path connection apparatus as claimed in claim 4, wherein:
a convex lens front cover is arranged between the convex lens and the light path receiver, and a sealing gasket is arranged between the convex lens front cover and the convex lens.
9. The enclosed ICP-AES optical path connection apparatus as claimed in claim 4, wherein:
and a gas quick-connection interface is arranged on the light path receiver.
10. The enclosed ICP-AES optical path connection apparatus as claimed in claim 9, wherein:
the light path receiver is in threaded connection with the condenser, and the gas quick connection interface is located at one end, close to the flange connecting piece, of the light path receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211594299.9A CN115753622A (en) | 2022-12-13 | 2022-12-13 | Closed ICP-AES light path connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211594299.9A CN115753622A (en) | 2022-12-13 | 2022-12-13 | Closed ICP-AES light path connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115753622A true CN115753622A (en) | 2023-03-07 |
Family
ID=85345623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211594299.9A Pending CN115753622A (en) | 2022-12-13 | 2022-12-13 | Closed ICP-AES light path connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115753622A (en) |
-
2022
- 2022-12-13 CN CN202211594299.9A patent/CN115753622A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115753622A (en) | Closed ICP-AES light path connecting device | |
| US4218712A (en) | Magnetically shielded image dissector tube camera | |
| US10937626B2 (en) | Holder and charged particle beam apparatus | |
| CN210222333U (en) | Light path adjusting mechanism based on digital micromirror unit | |
| CN110376700B (en) | Light path adjusting mechanism based on digital micromirror unit and adjusting method thereof | |
| CN112243495B (en) | MeV-based ion beam analysis apparatus | |
| US6552341B1 (en) | Installation and method for microscopic observation of a semiconductor electronic circuit | |
| CN112687515A (en) | Faraday cup receiver and receiving method thereof | |
| RU124664U1 (en) | TEST STAND | |
| CN210742125U (en) | Glass surface attachment detector based on laser-induced breakdown spectroscopy | |
| US5038045A (en) | Composite electromagnetic lens with variable focal distance | |
| US3446960A (en) | Device for measuring electron-beam intensities and for subjecting materials to electron irradiation in an electron microscope | |
| CN217033706U (en) | Ray flaw detection radiation area and irradiation center indicating device | |
| CN113311472B (en) | Detection device and particle accelerator | |
| CN110954558A (en) | Differential dark field microscopic defect detection device and method for transparent material | |
| CN219589816U (en) | Radiation light collecting device for high-energy heavy ion beam and target action | |
| EP0553913B1 (en) | X-ray tube with a reduced working distance | |
| EP1649487B1 (en) | Device for measuring and quantitative profiling of charged particle beams | |
| CN221529870U (en) | Fixing structure of ion guide rod | |
| CN116136504B (en) | Film detection device | |
| CN114967026B (en) | Flexible two-dimensional adjustable terahertz system optical integrated lens | |
| CN112730255B (en) | Laser-induced breakdown spectroscopy detecting system | |
| CN115662866B (en) | Secondary electron detection device | |
| CN220489988U (en) | Auxiliary fixture for plane mirror surface shape detection | |
| CN215729063U (en) | Characteristic light transmission device and detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |