CN217385315U - Electrode system for detecting pH of fermentation liquor - Google Patents
Electrode system for detecting pH of fermentation liquor Download PDFInfo
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- CN217385315U CN217385315U CN202121543615.0U CN202121543615U CN217385315U CN 217385315 U CN217385315 U CN 217385315U CN 202121543615 U CN202121543615 U CN 202121543615U CN 217385315 U CN217385315 U CN 217385315U
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Abstract
The utility model relates to an electrode system for zymotic fluid pH detects belongs to detection device technical field, electrode system include fixed sleeve, linear electric motor module, glass electrode, upper fixed rubber ring and lower fixed rubber ring, the upper end fixed mounting linear electric motor module of fixed sleeve, the glass electrode is arranged in the fixed sleeve, linear electric motor module control the glass electrode reciprocates; the inner part of the fixed sleeve is fixedly provided with the upper fixed rubber ring and the lower fixed rubber ring, a calibration chamber is formed between the upper fixed rubber ring and the lower fixed rubber ring, the lower end of the glass electrode sequentially penetrates through the upper fixed rubber ring and the lower fixed rubber ring, and the calibration chamber is connected with a cleaning solution pipeline, a calibration solution pipeline and a waste solution pipeline. When the electrode system is used for cleaning and calibrating the glass electrode, the glass electrode does not need to be taken out of the fermentation tank, the use is convenient, the introduction of mixed bacteria is avoided, and the pH detection is more convenient and efficient.
Description
Technical Field
The utility model relates to an electrode system for zymotic fluid pH detects belongs to detection device technical field.
Background
At present, most pH meters adopt composite glass electrodes, and the measurement result is accurate and the measurement error is small. The pH value measurement is an essential working step in the fermentation production process. The traditional electrode calibration is to take fermentation liquor to carry out pH measurement, then carry out data comparison with an online probe, then modify a machine reference curve, use a new reference curve to carry out the pH measurement of the fermentation liquor, and wash the electrode every time in order to prevent cross contamination.
The current 0.01-grade pH meter widely used has strict requirements on the cleaning degree of the electrode, so that the calibration work is large in workload, high in complexity and low in automation degree. In addition, the fermentation process has high requirements on sterilization, and when the electrode is taken out of the fermentation tank for cleaning and calibration and then is used again, the sterilization treatment is still required, and the operation process is very complicated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists, provide an electrode system for zymotic fluid pH detects, electrode system carry out the electrode and wash when calibrating, need not to take out the electrode from the fermentation cylinder, convenient to use avoids introducing miscellaneous fungus, makes the pH detect convenient high efficiency more.
The utility model provides an above-mentioned technical problem's technical scheme as follows: an electrode system for detecting pH of fermentation liquor comprises a fixed sleeve, a linear motor module, a glass electrode, an upper fixed rubber ring and a lower fixed rubber ring, wherein the fixed sleeve is fixedly arranged at the upper end of a fermentation tank;
the upper fixing rubber ring and the lower fixing rubber ring are fixedly installed in the fixing sleeve, the upper fixing rubber ring and the lower fixing rubber ring are tightly attached to the inner wall of the fixing sleeve, a calibration chamber is formed between the upper fixing rubber ring and the lower fixing rubber ring, the lower end of the glass electrode sequentially penetrates through the upper fixing rubber ring and the lower fixing rubber ring, the upper fixing rubber ring and the lower fixing rubber ring are in elastic tight contact with the glass electrode, so that the glass electrode can move up and down, meanwhile, the fact that the calibration chamber is kept airtight and free of liquid leakage can be guaranteed, and a pH detection site is arranged on the side face of the glass electrode; the calibration chamber is connected to a cleaning solution line, a calibration solution line, and a waste liquid line.
The utility model has the advantages that: when the glass electrode needs to be calibrated, the linear motor module pulls the glass electrode upwards, the pH detection site of the glass electrode enters the calibration chamber, cleaning liquid is introduced into the calibration chamber through the cleaning liquid pipeline, residual fermentation liquid on the glass electrode is cleaned, cleaning liquid is discharged through the waste liquid pipeline, then calibration liquid is introduced into the calibration chamber through the calibration liquid pipeline, the glass electrode is calibrated, the calibration liquid is discharged through the waste liquid pipeline, the cleaning liquid is added into the calibration area to clean the glass electrode, the cleaning liquid is discharged, the linear motor module pushes the glass electrode downwards, the pH detection site of the glass electrode enters the fermentation tank, and the pH detection is performed on the fermentation liquid. The electrode system does not need to manually take out the glass electrode for washing, calibrating and sterilizing, realizes the automatic and aseptic operation of the cleaning and calibration of the glass electrode and the pH detection, improves the working efficiency and reduces the labor cost; in addition, the electrode system is light and small in size, low in equipment cost, convenient to use, simple to maintain, stable and reliable, and not only meets the requirements of physicochemical detection laboratory environment, but also meets the application requirements of industrial occasions.
On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:
furthermore, the fixed sleeve is cylindrical and comprises an inner cylinder and a thick outer wall, the lower end of the inner cylinder is communicated with the fermentation tank, and the glass electrode is arranged in the inner cylinder of the fixed sleeve; the cleaning solution pipeline, the calibration solution pipeline and the waste liquid pipeline are positioned in the thick outer wall, and the cleaning solution pipeline, the calibration solution pipeline and the waste liquid pipeline are slotted holes in the thick outer wall.
The beneficial effect of adopting the above further scheme is: the lower end of the inner cylinder is communicated with the fermentation tank, so that the glass electrode can move up and down conveniently, and the glass electrode can be used for measuring the pH value of fermentation liquor and converting the two working modes of the glass electrode calibration conveniently.
Furthermore, limiting clamping plates are arranged in the inner barrel of the fixing sleeve, the upper fixing rubber ring is arranged between the limiting clamping plates, and the lower fixing rubber ring is arranged between the limiting clamping plates.
The beneficial effect of adopting the above further scheme is: the arrangement of the limiting clamping plate is more beneficial to the installation and fixation of the upper fixed rubber ring and the lower fixed rubber ring.
Further, be equipped with degerming filtration membrane on the washing liquid pipeline, be equipped with degerming filtration membrane on the calibration liquid pipeline, be equipped with degerming filtration membrane on the waste liquid pipeline, degerming filtration membrane is 0.2nm degerming filtration membrane.
The beneficial effect of adopting the further scheme is that: the arrangement of the 0.2nm sterilization filtering membrane can avoid introducing mixed bacteria in the cleaning and calibration process, and ensure the sterile operation of the cleaning and calibration process.
Furthermore, be connected with the feed liquor pump on washing liquid pipeline and the calibration liquid pipeline, be connected with out the liquid pump on the waste liquid pipeline, the feed liquor pump is the peristaltic pump with going out the liquid pump. The cleaning liquid pipeline, the calibration liquid pipeline and the waste liquid pipeline are all connected with peristaltic pumps, or the three pipelines of the cleaning liquid pipeline, the calibration liquid pipeline and the waste liquid pipeline are only connected with one peristaltic pump, and the peristaltic pumps can realize liquid inlet and liquid outlet.
The beneficial effect of adopting the above further scheme is: the setting of feed liquor pump is convenient for the transport of washing liquid and calibration liquid toward the calibration district, goes out the discharge of waste liquid in the setting of liquid pump is convenient for the calibration district, uses the peristaltic pump more to do benefit to the control of flow.
Furthermore, an inlet of the feed pump is connected with the cleaning liquid box and the calibration liquid box, and an outlet of the feed pump is connected with the waste liquid box; the calibration solution boxes are three, and the three calibration solution boxes are respectively filled with a calibration solution with the pH value of 4.01, a calibration solution with the pH value of 7.00 and a calibration solution with the pH value of 9.21.
The beneficial effect of adopting the further scheme is that: the three calibration solutions are convenient for three-point calibration of pH 4.01, 7.00 and 9.21 of the glass electrode, realize aseptic and standardized electrode on-line three-point calibration, can maintain continuous and stable operation of the glass electrode for hundreds of hours, and automatically complete the whole process.
Further, the electrode system is associated with a computer control system.
The beneficial effect of adopting the further scheme is that: the automatic control of the detection, cleaning and calibration operations of the glass electrode is realized through a computer control system, and the glass electrode is more convenient to use.
Drawings
FIG. 1 is a schematic view of an embodiment of an electrode system in a fermenter;
FIG. 2 is a schematic structural view of a fixing sleeve and a glass electrode according to an embodiment;
FIG. 3 is an enlarged view of a portion of FIG. 2;
in the figure, 1 is a fixed sleeve, 2 is a linear motor module, 3 is a glass electrode, 4 is an upper fixed rubber ring, 5 is a lower fixed rubber ring, 6 is a fermentation tank, 7 is a calibration chamber, 8 is a pH detection point, 9 is a cleaning liquid pipeline, 10 is a calibration liquid pipeline, 11 is a waste liquid pipeline, 12 is a limiting clamping plate, 13 is a liquid inlet pump, 14 is a liquid outlet pump, 15 is a cleaning liquid box, 16 is a calibration liquid box, and 17 is a waste liquid box; 1-1 inner cylinder and 1-2 thick outer wall.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1, an electrode system for detecting pH of fermentation broth comprises a fixed sleeve 1, a linear motor module 2, a glass electrode 3, an upper fixed rubber ring 4 and a lower fixed rubber ring 5, wherein the fixed sleeve 1 is fixedly mounted at the upper end of a fermentation tank 6, the linear motor module 2 is fixedly mounted at the upper end of the fixed sleeve 1, the glass electrode 3 is arranged in the fixed sleeve 1, the upper end of the glass electrode 3 is connected with the linear motor module 2, the linear motor module 2 adopts a conventional known structure, and the linear motor module 2 controls the glass electrode 3 to move up and down;
the upper fixing rubber ring 4 and the lower fixing rubber ring 5 are fixedly installed in the fixing sleeve 1, the upper fixing rubber ring 4 and the lower fixing rubber ring 5 are tightly attached to the inner wall of the fixing sleeve 1, a calibration chamber 7 is formed between the upper fixing rubber ring 4 and the lower fixing rubber ring 5, the lower end of the glass electrode 3 sequentially penetrates through the upper fixing rubber ring 4 and the lower fixing rubber ring 5, the glass electrode 3 can be conveniently drawn up and down by utilizing the elastic action of the upper fixing rubber ring 4 and the lower fixing rubber ring 5, the sealing and liquid leakage prevention in the calibration chamber 7 can be ensured, and the side face of the glass electrode 3 is provided with a pH detection site 8; the calibration chamber 7 is connected to a cleaning solution line 9, a calibration solution line 10, and a waste liquid line 11. The electrode system is associated with a computer control system.
As shown in fig. 2, the fixing sleeve 1 is cylindrical, the fixing sleeve 1 comprises an inner cylinder 1-1 and a thick outer wall 1-2, the lower end of the inner cylinder 1-1 is communicated with the fermentation tank 6, and the glass electrode 3 is arranged in the inner cylinder 1-1 of the fixing sleeve 1; the cleaning solution line 9, the calibration solution line 10 and the waste liquid line 11 are located inside the thick outer wall 1-2.
As shown in fig. 3, the inner cylinder 1-1 of the fixing sleeve 1 is provided with limiting clamping plates 12, the upper fixing rubber ring 4 is arranged between the limiting clamping plates 12, and the lower fixing rubber ring 5 is arranged between the limiting clamping plates 12.
Be equipped with degerming filtration membrane on the washing liquid pipeline 9, be equipped with degerming filtration membrane on the calibration liquid pipeline 10, be equipped with degerming filtration membrane on the waste liquid pipeline 11, degerming filtration membrane is 0.2nm degerming filtration membrane, can realize that pH detects and glass electrode 3 calibration is crisscross goes on, has avoided taking place cross contamination in the calibration process again, and influence fermentation rate and quality.
As shown in fig. 1, the cleaning solution pipeline 9 and the calibration solution pipeline 10 are connected with a liquid inlet pump 13, the waste liquid pipeline 11 is connected with a liquid outlet pump 14, and both the liquid inlet pump 13 and the liquid outlet pump 14 are peristaltic pumps. The inlet of the feed pump is connected with a cleaning liquid box 15 and a calibration liquid box 16, and the outlet of the feed pump 13 is connected with a waste liquid box 17; the calibration solution boxes 16 are provided with three calibration solution boxes 16, and the three calibration solution boxes 16 are respectively filled with a calibration solution with pH of 4.01, a calibration solution with pH of 7.00 and a calibration solution with pH of 9.21.
The working principle is as follows:
the electrode system is sterilized synchronously with the fermentation tank 6, after fermentation liquor is added into the fermentation tank 6, when pH detection is required to be carried out on the fermentation liquor, the linear motor module 2 pushes the glass electrode 3 downwards, so that a pH detection site 8 of the glass electrode 3 enters the fermentation tank 6, and the pH detection is carried out on the fermentation liquor;
when needing to carry out the calibration to glass electrode 3, linear electric motor module 4 is with glass electrode 3 pullup, make glass electrode 3's pH detection site 8 get into calibration room 7, let in the washing liquid in to calibration room 7 through washing liquid pipeline 9, wash remaining zymotic fluid on glass electrode 3, then discharge the washing liquid into waste liquid box 17 through waste liquid pipeline 11, let in calibration liquid through calibration liquid pipeline 10 in to calibration room 7, calibrate glass electrode 3, discharge calibration liquid through waste liquid pipeline 11, add the washing liquid and wash glass electrode 3 in calibration district 7 again, discharge the washing liquid, when calibrating glass electrode 3, adopt pH to be 4.01, 7.00, 9.21 three-point calibration, all need wash glass electrode 3 around adding calibration liquid in calibration room 7, finally accomplish the calibration process;
then the linear motor module 2 pushes the glass electrode 3 downwards, so that the pH detection site 8 of the glass electrode 3 enters the fermentation tank 6, and the pH detection of the fermentation liquor is continued.
The standardized electrode on-line three-point calibration can maintain the continuous and stable operation of the glass electrode for 3 hundreds of hours, the whole process is automatically completed, and meanwhile, the standard time interval can be freely set, so that the labor production cost is saved, and the accident potential caused by offline standard operation errors is avoided. By using the electrode system, the pH detection and calibration can be performed alternately, the whole process is sterile and automatic, the labor and the time are saved, and the accuracy and the efficiency of the detection are improved. The electrode system is light and small in design, convenient to apply, free of pollution, suitable for modern and automatic fermentation culture processes of food, biology, medicines and the like, and is a high-efficiency and convenient pH electrode integrating detection and calibration.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. The electrode system for detecting the pH value of the fermentation liquor is characterized by comprising a fixed sleeve (1), a linear motor module (2), a glass electrode (3), an upper fixed rubber ring (4) and a lower fixed rubber ring (5), wherein the fixed sleeve (1) is fixedly arranged at the upper end of a fermentation tank (6), the linear motor module (2) is fixedly arranged at the upper end of the fixed sleeve (1), the glass electrode (3) is arranged in the fixed sleeve (1), the upper end of the glass electrode (3) is connected with the linear motor module (2), and the linear motor module (2) controls the glass electrode (3) to move up and down;
the upper fixing rubber ring (4) and the lower fixing rubber ring (5) are fixedly installed in the fixing sleeve (1), the upper fixing rubber ring (4) and the lower fixing rubber ring (5) are tightly attached to the inner wall of the fixing sleeve (1), a calibration chamber (7) is formed between the upper fixing rubber ring (4) and the lower fixing rubber ring (5), the lower end of the glass electrode (3) sequentially penetrates through the upper fixing rubber ring (4) and the lower fixing rubber ring (5), and a pH detection site (8) is arranged on the side face of the glass electrode (3); the calibration chamber (7) is connected with a cleaning liquid pipeline (9), a calibration liquid pipeline (10) and a waste liquid pipeline (11).
2. The electrode system for detecting the pH of the fermentation liquor according to claim 1, wherein the fixed sleeve (1) is cylindrical, the fixed sleeve (1) comprises an inner cylinder (1-1) and a thick outer wall (1-2), the lower end of the inner cylinder (1-1) is communicated with the fermentation tank (6), and the glass electrode (3) is arranged in the inner cylinder (1-1) of the fixed sleeve (1); the cleaning solution pipeline (9), the calibration solution pipeline (10) and the waste liquid pipeline (11) are positioned inside the thick outer wall (1-2).
3. The electrode system for detecting the pH of the fermentation liquor according to claim 2, wherein the inner cylinder (1-1) of the fixed sleeve (1) is provided with limiting clamping plates (12), the upper fixed rubber ring (4) is arranged between the limiting clamping plates (12), and the lower fixed rubber ring (5) is arranged between the limiting clamping plates (12).
4. The electrode system for pH detection of fermentation liquor according to claim 1, wherein the cleaning solution line (9) is provided with a sterilizing filtration membrane, the calibration solution line (10) is provided with a sterilizing filtration membrane, the waste liquid line (11) is provided with a sterilizing filtration membrane, and the sterilizing filtration membrane is a 0.2nm sterilizing filtration membrane.
5. The electrode system for detecting the pH of a fermentation liquid according to claim 1, wherein a liquid inlet pump (13) is connected to the cleaning liquid pipeline (9) and the calibration liquid pipeline (10), a liquid outlet pump (14) is connected to the waste liquid pipeline (11), and both the liquid inlet pump (13) and the liquid outlet pump (14) are peristaltic pumps.
6. The electrode system for pH detection of fermentation liquor according to claim 5, wherein the inlet of the liquid inlet pump (13) is connected with a cleaning liquid box (15) and a calibration liquid box (16), and the outlet of the liquid inlet pump (13) is connected with a waste liquid box (17); the three calibration liquid boxes (16) are respectively filled with a calibration liquid with the pH value of 4.01, a calibration liquid with the pH value of 7.00 and a calibration liquid with the pH value of 9.21.
7. The electrode system for pH detection of fermentation broth according to claim 1, wherein said electrode system is associated with a computer control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121543615.0U CN217385315U (en) | 2021-07-07 | 2021-07-07 | Electrode system for detecting pH of fermentation liquor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121543615.0U CN217385315U (en) | 2021-07-07 | 2021-07-07 | Electrode system for detecting pH of fermentation liquor |
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| CN217385315U true CN217385315U (en) | 2022-09-06 |
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| CN202121543615.0U Active CN217385315U (en) | 2021-07-07 | 2021-07-07 | Electrode system for detecting pH of fermentation liquor |
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- 2021-07-07 CN CN202121543615.0U patent/CN217385315U/en active Active
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