Fermentation tank with real-time liquid absorption light signal detection function

Abstract

The utility model relates to a fermentation tank with a real-time liquid absorption light signal detection function, which comprises a fermentation tank main body, a telescopic rod component is fixed in the center of the top of the fermentation tank main body, a threaded transmission rod is arranged in the telescopic rod component, and the bottom of the threaded transmission rod penetrates through the bottom wall of the telescopic rod component and extends into the fermentation tank main body; the outer wall of the threaded transmission rod is sleeved with a moving block. An integrated optical detection device is fixed at the bottom of the moving block and comprises a light source emitter and an optical signal receiver, and the light source emitter and the optical signal receiver are arranged towards liquid in the fermentation tank main body. According to the fermentation tank disclosed by the utility model, the downward telescopic rod is additionally arranged in the fermentation tank, the telescopic rod is downwards and deeply immersed in liquid in a container of the fermentation tank, and the integrated optical detection device is arranged at the bottom of the telescopic rod and specifically structurally comprises a light source emitter and an optical signal receiver; light emitted by the light source is absorbed by liquid in the fermentation tank and then transmitted to the light signal receiver so as to display an implemented od value.

Description

Technical Field

[0001] This utility model relates to the field of bioengineering technology, and in particular to a fermenter with real-time liquid absorption light signal detection function. Background Technology

[0002] With the rapid development of synthetic biology and metabolic engineering, modern bioengineering has placed higher demands on the monitoring of fermentation processes. In an industry where the efficiency of industrial strain development has increased 30-fold, traditional offline OD detection methods have revealed systemic bottlenecks. For example, in an amino acid fermentation plant with an annual production capacity of 100,000 tons, each batch requires 40-60 manual samplings, with each test taking over 45 minutes, resulting in an 8-16 hour data vacuum period per production batch. This time delay not only causes a 15-20% fluctuation in metabolites but also extends the process optimization cycle to 2.3 times the traditional theoretical value.

[0003] Traditional fermentation process monitoring often uses offline sampling combined with laboratory instruments (such as spectrophotometers) to detect OD values, which has the following problems:

[0004] (1) Lag: Offline detection cannot reflect the state of the fermentation broth in real time, which leads to delays in process adjustment and affects fermentation efficiency;

[0005] (2) Single function: Existing online detection probes are mostly limited to a single parameter (such as OD value or pH), making it difficult to achieve real-time coordinated control of multiple parameters. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to overcome the difficulty of achieving real-time detection of OD value in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model provides a fermenter with real-time liquid absorption light signal detection function, comprising: a fermenter body, a telescopic rod assembly fixed at the center of the top of the fermenter body, the bottom of the telescopic rod assembly penetrating the top wall of the fermenter body and extending into the interior of the fermenter body; a drive motor provided at the top of the telescopic rod assembly, the output shaft of the drive motor being fixedly connected to the top of the telescopic rod assembly; a threaded transmission rod provided inside the telescopic rod assembly, the top of the threaded transmission rod being fixedly connected to the inner top wall of the telescopic rod assembly, the bottom penetrating the bottom wall of the telescopic rod assembly and extending into the interior of the fermenter body; a movable block sleeved on the outer wall of the threaded transmission rod, the movable block being threadedly connected to the threaded transmission rod, and the outer wall of the movable block being slidably connected to the inner wall of the telescopic rod assembly; an integrated optical detection device fixed at the bottom of the movable block, the integrated optical detection device including a light source emitter and a light signal receiver, the light source emitter and the light signal receiver being located on the left and right sides of the bottom of the integrated optical detection device respectively, and both the light source emitter and the light signal receiver being oriented towards the liquid inside the fermenter body. This invention relates to a fermenter with real-time liquid absorption light signal detection function. A downward telescopic rod is added to the fermenter, which is submerged in the liquid inside the fermenter. The bottom of the telescopic rod has an integrated optical detection device, specifically a light source emitter and a light signal receiver. The light emitted by the light source is absorbed by the liquid inside the fermenter and transmitted to the light signal receiver to display the real-time OD value.

[0008] In one embodiment of this utility model, a transparent detection window is provided between the light source emitter and the light signal receiver, and the transparent detection window is embedded in the bottom of the integrated optical detection device and fixed thereto.

[0009] In one embodiment of this utility model, a transmission adjustment device is provided on the top right side of the fermentation tank body. The transmission adjustment device includes a transmission gear set and an adjustment handwheel. The input end of the transmission gear set is fixedly connected to the adjustment handwheel, and the output end is engaged with the outer wall of the telescopic rod assembly.

[0010] In one embodiment of this utility model, an exhaust valve is provided on the top left side of the fermentation tank body, and a drain valve is provided at the bottom. The exhaust valve and the drain valve pass through the top wall and bottom wall of the fermentation tank body respectively and are fixedly connected to them.

[0011] In one embodiment of the present invention, the outer wall of the fermentation tank body is provided with a heat insulation jacket, the heat insulation jacket is tightly fitted to the outer wall of the fermentation tank body, the top of the heat insulation jacket is provided with a water inlet and the bottom is provided with a drain outlet, the water inlet and the drain outlet respectively penetrate through the top wall and the bottom wall of the heat insulation jacket and are fixedly connected to them.

[0012] In one embodiment of the present invention, a stirring motor is provided at the rear top of the fermentation tank body, the output shaft of the stirring motor passes through the top wall of the fermentation tank body and extends into the interior of the fermentation tank body, and a stirring paddle is fixed on the outer wall of the output shaft of the stirring motor; a plurality of stirring blades are evenly provided on the outer wall of the stirring paddle.

[0013] In one embodiment of the present invention, a feed inlet is provided at the front of the top of the fermentation tank body. The feed inlet penetrates the top wall of the fermentation tank body and is fixedly connected thereto. A sealing cover is provided at the top of the feed inlet. The sealing cover is threadedly connected to the feed inlet. A sealing ring is provided on the inner wall of the sealing cover.

[0014] In one embodiment of this utility model, the transparent detection window is made of quartz glass with a thickness of 3mm-5mm, and the surface of the transparent detection window is coated with an anti-fouling coating.

[0015] In one embodiment of the present invention, a positioning pin is provided inside the transmission gear set. The positioning pin passes through the side wall of the transmission gear set and is threadedly connected to it. The end of the positioning pin is tightly fitted to the outer wall of the telescopic rod assembly.

[0016] In one embodiment of this utility model, a heating resistance wire is provided inside the heat insulation jacket. The heating resistance wire is spirally distributed along the inner wall of the heat insulation jacket, and both ends of the heating resistance wire are connected to a power supply line.

[0017] Compared with the prior art, the fermenter of this invention with real-time liquid absorption light signal detection function has the following advantages:

[0018] 1. Through the cooperation of the telescopic rod assembly and the threaded transmission rod, the integrated optical detection device can move freely up and down in the liquid inside the fermenter body, realizing real-time detection of liquids at different depths, overcoming the problem that the fixed nozzle assembly in the existing technology cannot adapt to the dynamic monitoring needs of liquid environments at different depths.

[0019] 2. Through the design of the transmission gear set and the adjusting handwheel, the telescopic rod assembly can not only rotate but also precisely adjust its height. Combined with the anti-collision buffer pad and scale markings, it effectively avoids collision damage to the inner wall of the fermentation tank during the lifting and lowering process, while also making it easy for operators to accurately grasp the position of the telescopic rod assembly.

[0020] 3. The application of a transparent detection window and an anti-fouling coating ensures the efficiency and accuracy of light signal propagation in the liquid, while extending the service life of the transparent detection window and reducing maintenance costs. Attached Figure Description

[0021] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0022] Figure 1 This is an exploded view of a fermenter with real-time liquid absorption light signal detection function in a preferred embodiment of this utility model;

[0023] Figure 2 This is an assembly diagram of a fermenter with real-time liquid absorption light signal detection function in a preferred embodiment of the present invention;

[0024] Figure 3 This is a partially enlarged schematic diagram of the telescopic rod assembly and the integrated optical detection device in a preferred embodiment of the present invention;

[0025] Figure 4 This is a three-dimensional structural diagram of the stirring paddle and stirring blades in a preferred embodiment of the present invention;

[0026] Figure 5 This is a cross-sectional view of the insulation jacket and heating resistance wire in a preferred embodiment of the present invention.

[0027] Figure 6 This is a partially enlarged schematic diagram of the transparent detection window and anti-fouling coating in a preferred embodiment of the present invention.

[0028] Explanation of reference numerals in the accompanying drawings: 1. Fermentation tank body; 2. Telescopic rod assembly; 3. Light source emitter; 4. Light signal receiver; 5. Transmission gear set; 6. Adjusting handwheel; 7. Threaded transmission rod; 8. Moving block; 9. Integrated optical detection device; 10. Transparent detection window; 11. Anti-fouling coating; 12. Scale markings; 13. Anti-collision buffer pad; 14. Positioning pin; 15. Insulation jacket; 16. Heating resistance wire; 17. Stirring motor; 18. Stirring paddle; 19. Stirring blade; 20. Through hole; 21. Liquid level sensor; 22. Signal transmission line; 23. Exhaust valve; 24. Drain valve; 25. Water inlet; 26. Drain outlet; 27. Drive motor; 28. Sealed bearing; 29. ​​Feed inlet; 30. Sealing cover; 31. Sealing ring; 32. Damping adjustment mechanism. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0030] Reference Figure 1As shown, the fermenter of this invention with real-time liquid absorption light signal detection function includes a fermenter body 1, a telescopic rod assembly 2, a light source emitter 3, a light signal receiver 4, and a transmission adjustment device. The fermenter body 1 is the core container of the overall structure, and its top is equipped with multiple functional components, including an exhaust valve 23, a feed inlet 29, and a stirring motor 17. The telescopic rod assembly 2 is a hollow cylinder fixed at the center of the top of the fermenter body 1. Its bottom penetrates the top wall of the fermenter body 1 and extends into the interior of the fermenter body 1. Its outer wall is rotatably connected to the top wall of the fermenter body 1 via a sealed bearing 28. A drive motor 27 is located at the top of the telescopic rod assembly 2, and the output shaft of the drive motor 27 is fixedly connected to the top of the telescopic rod assembly 2 for driving the telescopic rod assembly 2 to rotate. A threaded transmission rod 7 is located inside the telescopic rod assembly 2. The top of the threaded transmission rod 7 is fixedly connected to the inner top wall of the telescopic rod assembly 2, and its bottom penetrates the bottom wall of the telescopic rod assembly 2 and extends into the interior of the fermenter body 1. A movable block 8 is sleeved on the outer wall of the threaded transmission rod 7. The movable block 8 is threadedly connected to the threaded transmission rod 7, and the outer wall of the movable block 8 is slidably connected to the inner wall of the telescopic rod assembly 2 to achieve vertical movement. An integrated optical detection device 9 is fixed at the bottom of the movable block 8. The integrated optical detection device 9 includes a light source emitter 3 and a light signal receiver 4, which are located on the left and right sides of the bottom of the integrated optical detection device 9, respectively, and are positioned facing the liquid inside the fermenter body 1. A transparent detection window 10 is provided between the light source emitter 3 and the light signal receiver 4. The transparent detection window 10 is embedded in the bottom of the integrated optical detection device 9 and fixed to it as a whole, for transmitting light.

[0031] Please see Figure 2 and Figure 6 The transparent detection window 10 is made of quartz glass with a thickness of 3mm-5mm and is coated with an anti-fouling coating 11 to reduce the impact of liquid contamination on the propagation of the light signal. The design of the transparent detection window 10 ensures the efficiency and accuracy of the light signal propagation in the liquid, while also extending its service life. The outer wall of the telescopic rod assembly 2 is equipped with scale markings 12, evenly distributed along the length of the telescopic rod assembly 2, making it easy for operators to determine the depth position of the integrated optical detection device 9. The bottom of the telescopic rod assembly 2 is equipped with an anti-collision buffer pad 13, which is fixedly connected to the bottom wall of the telescopic rod assembly 2 to prevent collision damage to the inner wall of the fermenter body 1 during lifting and lowering.

[0032] Please see Figure 1The transmission adjustment device includes a transmission gear set 5 and an adjusting handwheel 6. The transmission gear set 5 is located on the top right side of the fermentation tank body 1 and is fixedly integrated with it. The input end of the transmission gear set 5 is fixedly connected to the adjusting handwheel 6, and the output end is engaged with the outer wall of the telescopic rod assembly 2. The height of the telescopic rod assembly 2 can be precisely controlled by manually rotating the adjusting handwheel 6. The transmission gear set 5 has a damping adjustment mechanism 32 inside, which is fixedly connected to the inner wall of the transmission gear set 5 to prevent loosening during transmission. In addition, the transmission gear set 5 also has a positioning pin 14 inside. The positioning pin 14 passes through the side wall of the transmission gear set 5 and is threaded to it. Its end is tightly fitted with the outer wall of the telescopic rod assembly 2 to further ensure the positional stability of the telescopic rod assembly 2.

[0033] Please see Figure 4 A stirring motor 17 is located at the rear top of the fermentation tank body 1. The output shaft of the stirring motor 17 passes through the top wall of the fermentation tank body 1 and extends into the interior of the fermentation tank body 1. A stirring paddle 18 is fixed to the outer wall of the output shaft. The stirring paddle 18 is located above the liquid inside the fermentation tank body 1. Several stirring blades 19 are evenly arranged on the outer wall. The stirring blades 19 have an inclination angle of 30°-45° and several through holes 20 with a diameter of 5mm-10mm on their surface. These through holes can form local vortices during the stirring process, thereby improving the liquid mixing efficiency.

[0034] Please see Figure 5 The fermenter body 1 has an insulation jacket 15 on its outer wall, which fits tightly against the outer wall of the fermenter body 1. A water inlet 25 is located at the top, and a drain outlet 26 is located at the bottom, penetrating the top and bottom walls of the insulation jacket 15 and being fixedly connected to them. A heating resistance wire 16 is installed inside the insulation jacket 15, spirally distributed along the inner wall of the insulation jacket 15. Both ends of the heating resistance wire 16 are connected to a power cord to heat the liquid inside the insulation jacket 15, thereby maintaining a constant internal temperature of the fermenter body 1.

[0035] Please see Figure 3 The fermenter body 1 has a feed inlet 29 at the top front, which penetrates the top wall of the fermenter body 1 and is fixedly connected to it. A sealing cover 30 is provided at the top, which is threadedly connected to the feed inlet 29. A sealing ring 31 is provided on the inner wall to ensure sealing during the feeding process. A liquid level sensor 21 is installed inside the fermenter body 1 and fixed to the inner wall. The liquid level sensor 21 is a capacitive liquid level sensor. A signal transmission line 22 is provided at the top, which penetrates the top wall of the fermenter body 1 and is fixedly connected to it. This signal transmission line is used to monitor the liquid level inside the fermenter body 1 in real time and transmit the data to an external control system.

[0036] The working principle of this fermenter with real-time liquid absorption light signal detection function is as follows: After liquid is injected into the fermenter body 1, the raw materials are first added through the feed inlet 29, and the sealing cover 30 and sealing ring 31 ensure the sealing effect. The stirring motor 17 is started, and the stirring paddle 18 drives the stirring blades 19 to rotate, which fully stirs and mixes the liquid inside the fermenter body 1. At the same time, the heating resistance wire 16 heats the liquid inside the insulation jacket 15 to maintain a constant internal temperature of the fermenter body 1. The liquid level sensor 21 monitors the liquid level in real time and transmits the data to the external control system through the signal transmission line 22.

[0037] Subsequently, the operator controls the transmission gear set 5 by adjusting the handwheel 6, allowing the telescopic rod assembly 2 to rise and fall precisely, while simultaneously driving the motor 27 to rotate the telescopic rod assembly 2. The moving block 8 moves up and down on the threaded transmission rod 7, driving the integrated optical detection device 9 deeper into the liquid inside the fermenter body 1. The light source emitter 3 emits light that shines into the liquid inside the fermenter body 1 through the transparent detection window 10. Some of the light is absorbed by the liquid, and the remaining light is transmitted through the transparent detection window 10 to the light signal receiver 4. The light signal receiver 4 converts the received light signal into an electrical signal and transmits it to external monitoring equipment through the signal transmission line 22, achieving real-time detection of liquids at different depths.

[0038] During fermentation, the exhaust valve 23 is used to release the generated gas, and the liquid drain valve 24 is used to drain the liquid after fermentation. The anti-fouling coating 11 on the surface of the transparent detection window 10 effectively reduces the interference of liquid contamination on the propagation of light signals, while the anti-collision buffer pad 13 and the scale markings 12 respectively prevent the telescopic rod assembly 2 from impacting the inner wall of the fermentation tank body 1 and facilitate the operator to accurately grasp the position of the telescopic rod assembly 2.

[0039] In summary, this invention, through the cooperation of the telescopic rod assembly 2 and the threaded transmission rod 7, enables the integrated optical detection device 9 to freely rise and fall within the liquid inside the fermenter body 1, overcoming the problem that the fixed nozzle assembly in the prior art cannot adapt to the dynamic monitoring needs of liquid environments at different depths. The design of the transmission gear set 5 and the adjusting handwheel 6 allows the telescopic rod assembly 2 to not only rotate but also precisely adjust its height. Combined with the anti-collision buffer pad 13 and the scale markings 12, it effectively avoids collision damage to the inner wall of the fermenter body 1 during the rising and falling process, while also facilitating accurate positioning of the telescopic rod assembly 2 by the operator. The application of the transparent detection window 10 and the anti-fouling coating 11 ensures the propagation efficiency and accuracy of the light signal in the liquid, while extending the service life of the transparent detection window 10 and reducing maintenance costs.

[0040] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A fermenter having a real-time liquid absorbance optical signal detection function, characterized by, include: The fermentation tank body has a telescopic rod assembly fixed at the center of the top of the fermentation tank body. The bottom of the telescopic rod assembly penetrates the top wall of the fermentation tank body and extends into the interior of the fermentation tank body. The telescopic rod assembly is equipped with a drive motor at the top, and the output shaft of the drive motor is fixedly connected to the top of the telescopic rod assembly; the telescopic rod assembly is equipped with a threaded transmission rod inside, the top of the threaded transmission rod is fixedly connected to the inner top wall of the telescopic rod assembly, and the bottom of the threaded transmission rod penetrates the bottom wall of the telescopic rod assembly and extends into the interior of the fermentation tank body; A movable block is sleeved on the outer wall of the threaded transmission rod. The movable block is threadedly connected to the threaded transmission rod, and the outer wall of the movable block is slidably connected to the inner wall of the telescopic rod assembly. An integrated optical detection device is fixed at the bottom of the movable block. The integrated optical detection device includes a light source emitter and a light signal receiver. The light source emitter and the light signal receiver are located on the left and right sides of the bottom of the integrated optical detection device, respectively, and both the light source emitter and the light signal receiver are facing the liquid inside the fermenter body.

2. The fermenter with real-time liquid absorbance optical signal detection function according to claim 1, characterized in that: A transparent detection window is provided between the light source emitter and the light signal receiver. The transparent detection window is embedded in the bottom of the integrated optical detection device and fixed to it as a whole.

3. The fermenter with real-time liquid absorbance optical signal detection function according to claim 1, characterized in that: The fermenter body is provided with a transmission adjustment device on the top right side. The transmission adjustment device includes a transmission gear set and an adjustment handwheel. The input end of the transmission gear set is fixedly connected to the adjustment handwheel, and the output end is engaged with the outer wall of the telescopic rod assembly.

4. The fermenter with real-time liquid absorbance optical signal detection function according to claim 1, characterized in that: The fermenter body is equipped with an exhaust valve on the top left side and a drain valve at the bottom. The exhaust valve and the drain valve pass through the top wall and bottom wall of the fermenter body respectively and are fixedly connected to them.

5. The fermenter with real-time liquid absorbance optical signal detection function according to claim 1, characterized in that: The outer wall of the fermenter body is provided with a heat insulation jacket, which is tightly fitted to the outer wall of the fermenter body. The top of the heat insulation jacket is provided with a water inlet and the bottom is provided with a drain outlet. The water inlet and the drain outlet pass through the top wall and the bottom wall of the heat insulation jacket respectively and are fixedly connected to them.

6. The fermenter with real-time liquid absorbance optical signal detection function according to claim 1, characterized in that: A stirring motor is located at the rear top of the fermentation tank body. The output shaft of the stirring motor passes through the top wall of the fermentation tank body and extends into the interior of the fermentation tank body. A stirring paddle is fixed to the outer wall of the output shaft of the stirring motor. Several stirring blades are evenly distributed on the outer wall of the stirring paddle.

7. The fermenter with real-time liquid absorbance optical signal detection function according to claim 1, characterized in that: The fermenter body has a feed inlet at the front top, which penetrates the top wall of the fermenter body and is fixedly connected to it. The top of the feed inlet is provided with a sealing cover, which is threadedly connected to the feed inlet. The inner wall of the sealing cover is provided with a sealing ring.

8. The fermenter with real-time liquid absorbance optical signal detection function according to claim 2, characterized in that: The transparent detection window is made of quartz glass with a thickness of 3mm-5mm, and the surface of the transparent detection window is coated with an anti-fouling coating.

9. The fermenter with real-time liquid absorbance optical signal detection function according to claim 3, characterized in that: The transmission gear set is provided with a positioning pin inside. The positioning pin passes through the side wall of the transmission gear set and is threaded to it. The end of the positioning pin is tightly fitted to the outer wall of the telescopic rod assembly.

10. The fermenter with real-time liquid absorbance optical signal detection function according to claim 5, characterized in that: The insulation jacket is equipped with a heating resistance wire, which is spirally distributed along the inner wall of the insulation jacket. Both ends of the heating resistance wire are connected to a power supply line.

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