CN220603298U - Raman on-line detection flow cell structure - Google Patents
Raman on-line detection flow cell structure Download PDFInfo
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- CN220603298U CN220603298U CN202322205908.3U CN202322205908U CN220603298U CN 220603298 U CN220603298 U CN 220603298U CN 202322205908 U CN202322205908 U CN 202322205908U CN 220603298 U CN220603298 U CN 220603298U
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- flow cell
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- probe
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- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 71
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 239000000523 sample Substances 0.000 claims abstract description 87
- 238000007789 sealing Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 description 24
- 238000000034 method Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Abstract
The utility model relates to the field of chemical equipment, in particular to a Raman online detection flow cell structure. The flow cell structure comprises a sample outlet pipe interface, a sample inlet pipe interface and a Raman probe interface, a groove structure is arranged at the bottom of the flow cell structure, damage to a probe end face lens caused by collision between an unexpected Raman probe end face and the wall of the bottom of the flow cell structure can be prevented, the flow cell structure is designed with a sample inlet/outlet interface with adjustable pipe diameter size, and access of sample inlet/outlet pipes with different sizes can be flexibly adapted.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to a Raman online detection flow cell structure.
Background
The existing online detection technology generally immerses the probe directly into the fermentation tank, the detection mode is easy to bring in mixed bacteria and the like, the fermentation product in the dyeing and finishing tank is polluted, corresponding sterilization treatment is needed in the detection process, the working procedures are numerous, and the production efficiency is affected.
Some manufacturers input light through the light source interface arranged to pass through the liquid sample of the flow cell structure, collect the light passing through the sample in the flow cell structure through the receiving signal port opposite to the light source interface and detect and analyze the light, so as to realize the transmission type detection of the light signal, and the light emitting system is separated from the receiving system, so that the structure is loose and is not beneficial to integration.
Compared with the prior art, the utility model provides the small Raman detection flow cell structure, which can realize the efficient, rapid and accurate on-line process detection of the sample without worrying about pollution problem of the reaction liquid, and can select a non-immersed probe interface structure and an immersed probe interface flow cell structure according to detection and application requirements. By using the optical fiber Raman probe, the emitted light and the feedback signal of the detected object are completed through the same probe, and the flow cell structure only needs to design one Raman probe interface, so that two interfaces of an emitted light source and a signal receiving and a matched detection system device are avoided in the flow cell structure in the prior art, and the structure is more compact and simpler.
Disclosure of Invention
In order to achieve the above object, the present utility model provides the following technical solutions:
a Raman online detection flow cell structure is arranged on a chemical industry and a fermentation tank, and is used for enabling liquid to be detected to flow through, and real-time signal detection is achieved by combining a Raman analyzer. The method is characterized in that: the flow cell structure include out the pipe joint, go out the pipe interface, go into the pipe joint, go into pipe interface and raman probe interface, go out and be equipped with the sealing washer between pipe joint and the play pipe interface, go into and be equipped with the sealing washer between pipe joint and the income pipe interface, play pipe interface and go into pipe interface connection flow cell structure main part, raman probe interface department on be equipped with seal groove, sealing washer and fixation nut, raman probe follow raman probe interface and get into the flow cell structure, raman probe on be equipped with probe terminal surface lens, raman probe can detect the raman signal change of the different compositions that the liquid that flows contains.
Furthermore, the bottom of the flow cell is of a groove structure, so that damage to the probe end face lens caused by collision between the Raman probe end face and the bottom wall of the flow cell structure can be prevented.
Further, the joint of the Raman probe interface and the flow cell is of a convex structure, so that the Raman probe is in direct contact with the liquid sample to be measured in the flow cell structure.
Furthermore, the Raman probe interface adopts a special closed quartz and sapphire window structure, so that corrosion resistance of a sealing window is ensured, and long-term normal operation can be realized.
Further, transmission glass is arranged in the sealing groove, sealing rings are respectively arranged on two sides of the transmission glass, and the probe end face lens is arranged behind the transmission glass.
Further, one ends of the sampling tube connector and the sampling tube connector are provided with clamping rings, and one ends of the clamping rings are provided with fixing nuts; one end of the Raman probe interface is provided with a Raman probe interface connector, one end of the Raman probe interface connector is provided with a clamping ring, and one end of the clamping ring is provided with a fixing nut.
The beneficial effects of the utility model are as follows:
1. the flow cell structure with different inlet/outlet pipe diameter matching interfaces can be provided according to the specification of the sampling pipe of the concrete chemical reaction tank.
2. The flow cell structure can be directly arranged on a production reaction generator/tank, and when the flow cell structure is used, the flow cell structure is combined with a Raman analyzer to realize real-time signal detection, data reading and analysis, and on-line production process control is realized according to the real-time data analysis result.
Drawings
Fig. 1 is a structural diagram of the present utility model.
Fig. 2 is a block diagram of example 1 of the present utility model.
Fig. 3 is an exploded view of example 1 of the present utility model.
Fig. 4 is a block diagram of example 2 of the present utility model.
Fig. 5 is an exploded view of example 2 of the present utility model.
Fig. 6 is a block diagram of example 3 of the present utility model.
Fig. 7 is an exploded view of example 3 of the present utility model.
In the figure: 1. a raman probe interface; 11. a seal ring; 12. a fixing nut; 13. sealing grooves; 14. a transmission glass; 15. a raman probe interface connector; 16. a clasp; 2. a sample inlet pipe interface; 21. a sampling tube connector 21; 3. a sampling tube interface; 31. a sampling tube joint; A. a raman probe; a1, a probe end face lens; B. a flow cell.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown, the present utility model provides an embodiment:
as shown in fig. 1-3, in a raman on-line detection flow cell structure, the structure is a non-immersed raman probe interface flow cell structure, liquid flows into a flow cell B from a sample inlet end, a raman probe a emits light to penetrate through a transmission glass to be injected into a liquid sample to be detected, a liquid sample reactant in the flow cell structure is collected to scatter light signals through the same raman probe a, sealing rings 11 are respectively arranged at two sides of the transmission glass 14 for realizing liquid sample sealing, and the sealing rings 11 and the transmission glass 14 are fixed in a sealing groove 13 together. As shown in the exploded view of the flow cell structure in fig. 3, one end of the raman probe interface 1 of the flow cell structure is provided with a sealing groove 13, a transmission glass 14 is arranged in the sealing groove 13, sealing rings 11 are arranged on two sides of the transmission glass 14, one end of the raman probe interface 1 of the flow cell structure is provided with a raman probe interface connector 15, and one end of the raman probe interface connector 15 is provided with a clamping ring 16 and a fixing nut 12; a sampling tube connector 2 of the flow cell structure, wherein one end of the sampling tube connector 2 is provided with a sampling tube connector 21, the sampling tube connector 21 is directly connected with the sampling tube connector 2, and one end of the sampling tube connector 21 is provided with a clamping ring 16 and a fixing nut 12; one end of the outlet pipe joint 3 of the flow cell structure is provided with an outlet pipe joint 31, the outlet pipe joint 31 is directly connected with the outlet pipe joint 3, and one end of the outlet pipe joint 31 is provided with a clamping ring 16 and a fixing nut 12; the snap ring 16 and the various interface structures are secured by the retaining nut 12 and the probe end face lens A1 is positioned against the liquid sample after it is placed on the transmission glass 14. The fixing nut 12 of the sample inlet and the sample outlet of the flow cell structure is connected with the joint of the sample inlet pipe interface 2, and the fixing nut 12 of the sample outlet is connected with the joint of the sample outlet pipe interface 3.
Example 2
As shown in fig. 4-5, one embodiment provided by the present utility model is:
as shown in fig. 4, in the raman on-line detection flow cell structure, the structure is an immersed raman probe interface flow cell structure, a transmission glass 14 is removed from a raman probe interface 1 in a main structure of the flow cell structure, a sealing ring 11 and a matched sealing groove 13 are arranged, the whole interface design in the embodiment is matched with the immersed probe structure, an additional connector is omitted, and a raman probe a is stably placed through a fixing nut 12 and a clamping ring 16. As shown in the exploded view of the flow cell structure in fig. 5, one end of a raman probe interface 1 of the flow cell structure is provided with a clamping ring 16 and a fixing nut 12, one end of a sampling tube interface 2 of the flow cell structure is provided with a sampling tube connector 21, the sampling tube connector 21 is directly connected with the sampling tube interface 2, and one end of the sampling tube connector 21 is provided with the clamping ring 16 and the fixing nut 12; one end of the outlet pipe joint 3 of the flow cell structure is provided with an outlet pipe joint 31, the outlet pipe joint 31 is directly connected with the outlet pipe joint 3, and one end of the outlet pipe joint 31 is provided with a clamping ring 16 and a fixing nut 12; through fixation nut 12, snap ring 16 and each interface structure are fixed, and raman probe interface 1 and flow cell B meet department be protruding structure to make raman probe A terminal surface direct contact with the liquid sample that awaits measuring in the flow cell B, raman probe A and the liquid direct contact that awaits measuring detect can make the optical signal loss reduce by showing, and detection sensitivity is high.
Example 3
As shown in fig. 6-7, one embodiment provided by the present utility model:
according to the structure, aiming at the fact that sampling tube sizes of different reaction tanks can be different, an exception type immersion type Raman probe interface flow cell structure is provided for flexibly adapting to access of different-size sampling tubes, the flow cell structure is improved at two positions, one of the two positions is provided with a groove structure in the bottom of a flow cell B in a main body of the flow cell structure, and damage to a probe end face lens caused by collision between an end face of a Raman probe and the bottom wall of the flow cell can be prevented; secondly, the flow cell structure is designed with a sample inlet/outlet interface capable of adjusting the size of the sample inlet/outlet pipe. As shown in fig. 7, a groove is arranged at the bottom of the flow cell B, and a sealing ring 11 and a fixing nut 12 are arranged at one end of the Raman probe interface 1 of the flow cell structure; a sampling tube connector 2 of the flow cell structure, wherein one end of the sampling tube connector 2 is provided with a sampling tube connector 21, and a sealing ring 11 is arranged between the sampling tube connector 21 and the sampling tube connector 2; one end of the outlet pipe interface 3 of the flow cell structure is provided with an outlet pipe joint 31, a sealing ring 11 is arranged between the outlet pipe interface 3 and the outlet pipe joint 31, and the Raman probe A directly enters the flow cell main body from the Raman probe interface 1.
The utility model provides a flow cell structure device which is used for extracting samples from a reaction tank and can carry out real-time online Raman process detection analysis on a biochemical reaction production site, wherein an immersion type or non-immersion type Raman detection mode can be selected according to the properties of specific samples, and a flow cell structure with different interfaces matched with an in/out sample tube can be provided according to the specifications of the sample tube of the specific reaction tank, so that the real-time online detection analysis of the biochemical reaction process is realized, the reaction can be subjected to real-time feeding according to the analysis result, and the measures such as formula adjustment can be carried out, so that the yield of reactants is improved, the production efficiency is improved, and the production cost is reduced.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. A Raman on-line detection flow cell structure is characterized in that: the flow cell structure include out the pipe joint, go out the pipe interface, go into the pipe joint, go into pipe interface and raman probe interface, go out and be equipped with the sealing washer between pipe joint and the play pipe interface, go into and be equipped with the sealing washer between pipe joint and the income pipe interface, play pipe interface and go into the pipe interface and connect the flow cell main part, raman probe interface department on be equipped with seal groove, sealing washer and fixation nut, raman probe follow raman probe interface entering flow cell structure, raman probe on be equipped with probe terminal surface lens.
2. A raman on-line detection flow cell structure according to claim 1, characterized in that: the pipe joint is characterized in that a clamping ring is arranged at one end of the pipe joint and one end of the pipe joint, and a fixing nut is arranged at one end of the clamping ring.
3. A raman on-line detection flow cell structure according to claim 1, characterized in that: one end of the Raman probe interface is provided with a Raman probe interface connector, and one end of the Raman probe interface connector is provided with a clamping ring.
4. A raman on-line detection flow cell structure according to claim 1, characterized in that: and a transmission glass is arranged in the sealing groove, and the probe end face lens is arranged behind the transmission glass.
5. A raman on-line detection flow cell structure according to claim 1, characterized in that: the joint of the Raman probe interface and the flow cell is of a convex structure, and the bottom of the flow cell is of a groove structure.
6. The raman on-line detection flow cell structure according to claim 4, wherein: sealing rings are respectively arranged on two sides of the transmission glass.
7. A raman on-line detection flow cell structure according to claim 1, characterized in that: the flow cell structure is arranged on the chemical reaction tank and is used for flowing the liquid to be detected, the Raman probe can detect the Raman signal changes of different components contained in the flowing liquid and then realize real-time signal detection by combining with a Raman analyzer, and further realize the control of the online production process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322205908.3U CN220603298U (en) | 2023-08-16 | 2023-08-16 | Raman on-line detection flow cell structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322205908.3U CN220603298U (en) | 2023-08-16 | 2023-08-16 | Raman on-line detection flow cell structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220603298U true CN220603298U (en) | 2024-03-15 |
Family
ID=90178352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322205908.3U Active CN220603298U (en) | 2023-08-16 | 2023-08-16 | Raman on-line detection flow cell structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220603298U (en) |
-
2023
- 2023-08-16 CN CN202322205908.3U patent/CN220603298U/en active Active
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