A method and system for monitoring the production quality of soda water

Abstract

This invention discloses a method and system for monitoring the production quality of soda water, relating to the technical field of soda water production equipment. It includes a filling pipeline with a bypass pipe connected to one side. The bypass pipe includes a detection element, a switching element, and a driving element. By using a bypass pipe, a first detection pipe, and a second detection pipe, and by making the first detection pipe transparent and placing the monitoring element on its circumference, the invention enables real-time microbial monitoring of the soda water solution in the pipeline. Furthermore, during ATP fluorescence detection, the operator only needs to control the flow rate of the bypass pipe using an electric three-way valve to achieve sampling and testing without shutting down the system. Additionally, if a missed detection occurs, the second detection pipe remains in a non-conductive state, ensuring that the solution at the missed detection time point is always within the second detection pipe. This prevents gaps in the detection of microbial content in the soda water after a follow-up test.

Description

Technical Field

[0001] This invention relates to the field of soda water production equipment technology, and in particular to a method and system for monitoring the quality of soda water production. Background Technology

[0002] Soda water, a common carbonated beverage, is loved by consumers for its unique taste and health benefits. However, during the production process of soda water, especially in the bottling process, microorganisms can adhere to the inner walls of the bottling pipes. When the microbial content is too high, flocculent matter or "bottle swelling" may occur inside the soda water, seriously affecting the quality and taste of the product.

[0003] The main causes of microbial contamination include biofilm formation on the inner walls of pipes, ineffective CIP cleaning systems, and improper selection or use of disinfectants. Microorganisms multiply in filling equipment and pipes, and their metabolic products form white floating matter, leading to sensory deterioration of the product and safety hazards.

[0004] Current methods for detecting microbial content include online monitoring with embedded fluorescence sensors, ATP fluorescence detection, pipe endoscopy, and PCR molecular detection. Taking online monitoring with embedded fluorescence sensors as an example, this method involves installing a fluorescence sensor on the inner wall of a pipe and exciting the fluorescence signal of organic matter in the water using a specific wavelength to detect changes in the concentration of dissolved organic matter in real time. If biofilm or microbial contamination exists on the inner wall of the pipe, its metabolic products (such as tryptophan and tyrosine) will release specific fluorescence signals. However, this method may experience signal attenuation due to dirt accumulation after long-term use, leading to erroneous monitoring results.

[0005] Furthermore, since this conventional fluorescence method primarily detects microbial metabolites or dissolved organic matter, reflecting indirect biological activity, it cannot accurately quantify the number of viable bacteria. Additionally, sugars, additives, bubbles, and pipe cleaning residues in soda water can release fluorescent signals, leading to a high false-positive rate with conventional fluorescence methods.

[0006] Therefore, existing technologies generally employ multiple detection methods for verification, such as the ATP fluorescence detection method. This method primarily assesses the total microbial population by sampling a swab onto the inner wall of the pipe and detecting the intensity of the adenosine triphosphate (ATP) fluorescence signal (RLU value). It has the advantages of fast detection speed and suitability for high-frequency detection. Combining these two methods not only allows for continuous monitoring of the fluorescence signal of microorganisms in the pipe but also enables verification of the authenticity of online fluorescence alarms through periodic sampling. However, this method also has significant drawbacks:

[0007] When using the ATP fluorescence detection method to detect microorganisms, periodic sampling is required, and the sampling frequency varies significantly before and after different processes. Testing personnel need to adapt to these changes in accordance with the processes. However, in daily work, testing personnel cannot strictly follow the process requirements for sampling and inspection. When a missed detection occurs, there is a gap in the detection of microbial content in the soda water. If a problem of excessively high microbial content is found at this time, it is difficult for testing personnel to trace the source of contamination. It is necessary to shut down the machine for a long time for investigation, disinfection and cleaning, and to test a large number of bottled finished products one by one, which seriously affects production efficiency.

[0008] Furthermore, if the inner wall of the pipe is directly wiped with a sampling swab, the machine can only be stopped for testing. When sampling at different locations, it is also necessary to ensure that the wiping force and wiping area are consistent as much as possible, otherwise it will affect the accuracy of the test. Moreover, for the microbial film that is tightly attached to the inner wall of the pipe, wiping with a sampling swab alone may not be able to completely obtain all microorganisms.

[0009] Therefore, this invention proposes a method and system for monitoring the production quality of soda water to solve the above problems. Summary of the Invention

[0010] The purpose of this invention is to provide a method and system for monitoring the production quality of soda water, so as to solve the technical problems mentioned in the background art.

[0011] To achieve the above objectives, the present invention provides the following technical solution: a soda water production quality monitoring system, comprising a filling pipeline, wherein a bypass pipe is connected to one side of the filling pipeline, and the bypass pipe includes:

[0012] The detection device includes a housing connected to a bypass pipe, and a first detection tube and a second detection tube are provided on the housing. The first detection tube is made of transparent material and has a monitoring device for monitoring the content of microorganisms in the liquid on its circumference.

[0013] The switching component is located at both ends of the housing along the fluid flow direction. It includes a first switching plate and a second switching plate that are configured to cooperate with the first detection tube and the second detection tube. Each of the first switching plate and the second switching plate has four through holes that cooperate with the first detection tube and the second detection tube. The four through holes correspond to the detection state and the missed detection state of the first detection tube and the second detection tube, respectively.

[0014] The driving component is located on the outside of the housing and forms a driving engagement with the switching component;

[0015] The driving component can control the rotation of the first switching plate and the second switching plate to switch the detection state and the missed detection state of the detection component.

[0016] Preferably, the housing includes two cylinders that are fixedly connected to a bypass pipe respectively. A first sampling tube and a second sampling tube are symmetrically arranged on one side of one of the cylinders. The first detection tube and the second detection tube are connected and arranged between the two cylinders. The first switching plate and the second switching plate are located in the two cylinders respectively, and the same rotating shaft that penetrates the cylinder is fixedly connected between the first switching plate and the second switching plate.

[0017] One of the through holes that matches the second detection tube is fixedly connected to a guide head, which forms a sealed contact between one end of the second detection tube and the inner wall of the cylinder.

[0018] Preferably, the monitoring device includes a laser head and a photodetector fixed to the circumferential side of the first detection tube. The laser head can emit a laser of a specific wavelength to penetrate the tube wall of the first detection tube and excite the fluorescent substances of microorganisms in the liquid. The photodetector can collect the fluorescent signals of microorganisms.

[0019] Preferably, the driving component includes a connecting plate fixedly connected to the circumferential side of the cylinder, a powerful electromagnet is provided on the side of the connecting plate near the first switching plate, an adsorption plate is provided on one side of the housing to form a magnetic interaction with the powerful electromagnet, a first elastic element is provided between the adsorption plate and the connecting plate, a connecting pin is fixedly connected to the adsorption plate and penetrates into the cylinder, the connecting pin is slidably connected to the cylinder and the first switching plate respectively, and a groove is provided at the end of the connecting pin away from the adsorption plate, a slider matching the groove is provided on the first switching plate, a spiral groove is provided on the circumferential side of the cylinder, and a connecting block matching the spiral groove is provided on the adsorption plate;

[0020] When the adsorption plate moves to one side under the adsorption of a powerful electromagnet, the adsorption plate drives the first switching plate to rotate under the action of the spiral groove and the connecting block. An arc-shaped groove matching the rotation direction of the adsorption plate is opened on one side of the cylinder.

[0021] Preferably, both the first and second detection tubes are provided with a cleaning component inside, which can rotate under the drive of fluid and clean the inner walls of the first and second detection tubes.

[0022] Preferably, the cleaning component includes a connecting ring rotatably connected to the first detection tube and the second detection tube. A plurality of circumferentially distributed scrapers are provided on one side of the connecting tube. A plurality of circumferentially distributed guide plates are fixedly connected to the inner ring of the connecting ring. A water inlet tube is provided at the center of the connecting ring. A plurality of circumferentially distributed connecting strips are provided between the connecting ring and the water inlet tube. A water inlet groove communicating with the water inlet tube is opened inside the scrapers, the connecting ring and the connecting strips. A plurality of spray holes communicating with the water inlet groove are opened on one side of the scraper.

[0023] Preferably, the nozzle is angled, the angle between the axis of the nozzle and the tangent of the first detection tube is acute, and the interior of the water guide tube is provided with a conical component to guide the flow of liquid.

[0024] Preferably, the first switching plate is further provided with a control mechanism, which includes two actuators and a connector. The actuators are located on the periphery of two of the through holes, and the connector forms a driving engagement with the driving component.

[0025] When the detection component is in the detection state, the driving component can control the rotation state of the connecting ring through the connecting component and the actuator.

[0026] Preferably, the actuator includes a through slot on the first switching plate, a pin is slidably connected in the through slot, a second elastic element is provided between the pin and the through slot, and multiple slots matching the pin are provided on one side of each of the two connecting rings.

[0027] The connector includes two pressure rings that match the through holes. The two pressure rings are fixedly connected to the same connecting rod. The adsorption plate has two symmetrically arranged connecting grooves. A movable plate is slidably connected inside the connecting grooves. The connecting pin is set on the movable plate. The movable plate can be attracted by a powerful electromagnet. The end of the connecting rod away from the pressure rings is fixedly connected to the connecting pin. A third elastic element is provided between the movable plate and the powerful electromagnet. The elastic force of the third elastic element is less than that of the first elastic element.

[0028] A method for monitoring the production quality of soda water includes the following steps:

[0029] S1. Real-time monitoring: Control the flow of sodium bicarbonate solution to the bypass pipeline so that it flows through the first and second detection tubes at the same time, and perform real-time microbial monitoring on the flowing liquid through the monitoring device;

[0030] S2. Timed sampling: After the predetermined sampling time is reached, the liquid flow rate of the bypass tube is reduced, and the powerful electromagnet is energized to switch the second detection tube to the sampling state. The liquid in the second detection tube is sampled by sampling swab.

[0031] S3, Missed Detection Traceability: If sampling is not performed after the scheduled time, the powerful electromagnet will remain energized, causing the liquid to be tested to remain in the tube. The remaining liquid will be sampled during subsequent supplementary testing.

[0032] S4: Pipe wall maintenance: During non-sampling periods, the cleaning components are kept locked by the control mechanism to ensure that the microbial adhesion state on the inner wall of the test tube is consistent with that of the filling pipeline.

[0033] The beneficial effects of this invention are:

[0034] This invention utilizes a bypass pipe, a first detection pipe, and a second detection pipe. The first detection pipe is made of transparent material, and the monitoring element is placed on its circumference. This allows the monitoring element to perform real-time microbial monitoring of the soda solution in the pipeline. Furthermore, during ATP fluorescence detection, the operator only needs to control the flow rate of the bypass pipe via an electric three-way valve to achieve sampling and testing without shutting down the system. Additionally, when the filling system enters the next detection time point, the powerful electromagnet is automatically energized. If the operator misses a detection, the second detection pipe remains in a non-conductive state, thus providing a "historical record" function. This ensures that the solution at the missed detection time point is always within the second detection pipe, preventing gaps in the detection of microbial content in the soda solution after a follow-up test. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of a soda water production quality monitoring system according to the present invention.

[0036] Figure 2 This is a three-dimensional structural diagram of a soda water production quality monitoring system according to the present invention.

[0037] Figure 3 This is a cross-sectional view of the filling pipe and bypass pipe of the present invention.

[0038] Figure 4 This is a schematic diagram showing the cooperation between the housing, the first detection tube, and the second detection tube of the present invention.

[0039] Figure 5 This is a schematic diagram showing the interaction between the monitoring element and the first detection tube of the present invention.

[0040] Figure 6 for Figure 3 A magnified view of a portion of point A in the middle.

[0041] Figure 7 This is a three-dimensional structural diagram of the switching component of the present invention.

[0042] Figure 8 This is a three-dimensional structural diagram of the cleaning component of the present invention.

[0043] Figure 9 This is a cross-sectional structural diagram of the cleaning component of the present invention.

[0044] Figure 10 This is a cross-sectional view of the cleaning component of the present invention from another angle.

[0045] Figure 11 This is a cross-sectional view of the control mechanism and the detection component of the present invention.

[0046] Figure 12 for Figure 11 A magnified view of a portion of point B in the middle.

[0047] Figure 13 This is a three-dimensional structural diagram of the connector of the present invention.

[0048] The attached figures are labeled as follows:

[0049] 1. Filling pipeline;

[0050] 2. Bypass pipe;

[0051] 3. Detection component; 31. Housing; 311. Cylinder; 312. First sampling tube; 313. Second sampling tube; 32. First detection tube; 33. Second detection tube; 34. Monitoring component; 341. Laser head; 342. Photodetector;

[0052] 4. Switching component; 41. First switching plate; 42. Second switching plate; 43. Through hole; 44. Rotating shaft; 45. Guide head;

[0053] 5. Driving component; 51. Connecting plate; 52. High-power electromagnet; 53. Adsorption plate; 54. First elastic component; 55. Connecting pin; 551. Slide groove; 56. Spiral groove; 57. Arc groove;

[0054] 6. Cleaning components; 61. Connecting ring; 611. Slot; 62. Scraper; 621. Spray nozzle; 63. Guide plate; 64. Water inlet tube; 65. Connecting strip; 66. Water inlet trough; 67. Conical component;

[0055] 7. Control mechanism; 71. Actuator; 711. Through groove; 712. Pin; 713. Second elastic element; 72. Connector; 721. Pressure ring; 722. Connecting rod; 723. Movable plate; 724. Third elastic element. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Example 1

[0058] In the production process of soda water, ATP fluorescence detection is required for periodic inspection of the bottling pipelines. The sampling frequency varies significantly before and after different processes, requiring inspectors to adapt accordingly. However, in daily work, inspectors often fail to strictly adhere to process requirements during sampling, leading to gaps in the detection of microbial content in the soda water. If high microbial levels are detected during this period, it becomes difficult for inspectors to trace the source of contamination, necessitating prolonged shutdowns for investigation, disinfection, and cleaning. Furthermore, a large number of bottled products must be tested individually, severely impacting production efficiency. This embodiment is invented to address these issues.

[0059] Please see Figures 1 to 13 As shown, an embodiment of the present invention provides a soda water production quality monitoring system, including a filling pipe 1, a bypass pipe 2 connected to one side of the filling pipe 1, the filling pipe 1 and the bypass pipe 2 being connected by an electric three-way valve, and the bypass pipe 2 including a detection component 3, a switching component 4 and a driving component 5.

[0060] Please see Figures 2 to 7 As shown, the detection element 3 includes a housing 31 connected to the bypass pipe 2. A first detection tube 32 and a second detection tube 33 are provided on the housing 31. The first detection tube 32 is made of transparent material and a monitoring element 34 for monitoring the content of microorganisms in the liquid is provided on its circumference. The monitoring method of the monitoring element 34 is laser-induced fluorescence detection technology, which includes a laser head 341 and a photodetector 342 fixed on the circumference of the first detection tube 32. The laser head 341 can emit a laser of a specific wavelength to penetrate the tube wall of the first detection tube 32 and excite the fluorescent substances of microorganisms in the liquid. The photodetector 342 can collect the fluorescence signal of microorganisms and filter out interference light such as the laser itself and the background light of the pipe.

[0061] The switching component 4 is located at both ends inside the housing 31 along the fluid flow direction. It includes a first switching plate 41 and a second switching plate 42 that are configured to cooperate with the first detection tube 32 and the second detection tube 33. Each of the first switching plate 41 and the second switching plate 42 has four through holes 43 that are configured to cooperate with the first detection tube 32 and the second detection tube 33. The four through holes 43 correspond to the detection state and the missed detection state of the first detection tube 32 and the second detection tube 33, respectively.

[0062] The driving component 5 is located on the outside of the housing 31 and forms a driving cooperation with the switching component 4. The driving component 5 can control the rotation of the first switching plate 41 and the second switching plate 42 to switch the detection state and the missed detection state of the detection component 3.

[0063] In this embodiment, the first switching plate 41 and the second switching plate 42 have different shapes. Since the driving component 5 is located on the water inlet side of the housing 31, in order to make the first switching plate 41 and the driving component 5 form a driving cooperation, the shape of the first switching plate 41 is consistent with the inner wall of the cylinder 311 and is sealed and rotatably connected to it.

[0064] Please see Figures 4 to 7 As shown, the housing 31 includes two cylindrical bodies 311 that are fixedly connected to the bypass pipe 2 respectively. A first sampling tube 312 and a second sampling tube 313 are symmetrically arranged on one side of one of the cylindrical bodies 311. Both the first sampling tube 312 and the second sampling tube 313 are sealed with caps by threads. The first detection tube 32 and the second detection tube 33 are connected between the two cylindrical bodies 311. The first switching plate 41 and the second switching plate 42 are located inside the two cylindrical bodies 311 respectively. The first switching plate 41 and the second switching plate 42 are fixedly connected to the same rotating shaft 44 that penetrates the cylindrical body 311. The rotating shaft 44 is sealed and rotatably connected to the cylindrical body 311.

[0065] One of the through holes 43 that matches the second detection tube 33 is fixedly connected to a guide head 45. When the testing personnel need to sample the solution in the second detection tube 33, the powerful electromagnet 52 is energized and the guide head 45 is connected to the second sampling tube 313. At this time, the liquid flowing through the bypass tube 2 mainly flows through the first detection tube 32, while the second detection tube 33 is in a relatively static state, and the microorganisms and possible sediments inside it are in a free floating state.

[0066] Please see Figure 4 and Figure 6 As shown, the driving component 5 includes a connecting plate 51 fixedly connected to the circumferential side of the cylinder 311. A powerful electromagnet 52 is provided on the side of the connecting plate 51 near the first switching plate 41. An adsorption plate 53 is provided on one side of the housing 31 to form a magnetic interaction with the powerful electromagnet 52. A first elastic element 54 is provided between the adsorption plate 53 and the connecting plate 51. A connecting pin 55 is fixedly connected to the adsorption plate 53 and penetrates into the interior of the cylinder 311. The connecting pin 55 is slidably connected to the cylinder 311 and the first switching plate 41 respectively. A groove 551 is provided at the end of the connecting pin 55 away from the adsorption plate 53. A slider matching the groove 551 is provided on the first switching plate 41. A spiral groove 56 is provided on the circumferential side of the cylinder 311. A connecting block matching the spiral groove 56 is provided on the adsorption plate 53.

[0067] When the adsorption plate 53 moves to one side under the adsorption of the powerful electromagnet 52, the adsorption plate 53 drives the first switching plate 41 to rotate under the action of the spiral groove 56 and the connecting block. An arc-shaped groove 57 matching the rotation direction of the adsorption plate 53 is opened on one side of the cylinder 311.

[0068] It should be further noted that the soda water filling system consists of filling pipe 1, multiple valves, and water pumps, etc. In this embodiment, the bypass pipe 2 is mainly set at the bends and valve connections of the filling pipe 1. Therefore, in the soda water filling system, multiple bypass pipes 2 and detection devices 3 can be set, and corresponding detection areas are formed between two adjacent bypass pipes 2.

[0069] During use, the testing personnel can adjust the liquid flow rate of the filling pipeline 1 and the bypass pipe 2 by controlling the conduction state of the electric three-way valve. When the monitoring element 34 is in the daily monitoring state, the powerful electromagnet 52 is always de-energized. At this time, the first detection tube 32 and the second detection tube 33 are both connected to the right cylinder 311. The soda solution enters the filling pipeline 1 after passing through the first detection tube 32, the second detection tube 33, the right cylinder 311 and the bypass pipe 2. The monitoring element 34 continuously monitors the microbial content of the liquid in the first detection tube 32.

[0070] It should be noted that the second detection tube 33 serves as the sampling tube for the ATP fluorescence detection method. When sampling the solution in the second detection tube 33, the powerful electromagnet 52 is energized and the liquid flow in the bypass tube 2 is reduced or even completely shut off by the electric three-way valve. At this time, the adsorption plate 53 moves towards the powerful electromagnet 52 after overcoming the elastic force of the first elastic element 54 under the action of magnetic force. During its movement, due to the action of the connecting block and the spiral groove 56, the adsorption plate 53 rotates 90 degrees along the axis of the housing 31, so that the guide head 45 is connected to the second sampling tube 313. After removing the cover of the second sampling tube 313, the sampling swab can be inserted into the interior of the second detection tube 33 for sampling. After sampling is completed, the powerful electromagnet 52 is energized again and remains energized until the next sampling and detection time point.

[0071] When the next sampling and testing time arrives, the powerful electromagnet 52 is automatically energized. If the testing personnel do not sample and test the second detection tube 33 at this time, due to the action of the guide head 45 and the second sampling tube 313, the second detection tube 33 is in a non-conductive state, and the liquid inside is in a relatively static state. Most of the liquid enters the right cylinder 311 after passing through the left cylinder 311 and the first detection tube 32, and finally enters the filling pipeline 1 again through the bypass pipe 2. At this time, the second detection tube 33 is in a missed detection state, which is equivalent to having a "historical record" effect, so that the solution at the missed detection time point is always in the second detection tube 33. When the testing personnel perform a supplementary test, they only need to adjust the conduction state of the electric three-way valve and open the cap of the second sampling tube 313 to test the liquid in the second detection tube 33.

[0072] There are two sampling methods for sampling swabs: one is to directly sample the liquid, and the other is to wipe the inner wall of the test tube to sample the microorganisms attached to the inner wall.

[0073] Furthermore, the test piece 3 is also equipped with a data recording and analysis module, which can automatically record the time, results and corresponding production batch information of each test, providing strong data support for subsequent quality traceability and process optimization.

[0074] In summary, by setting up the bypass pipe 2, the first detection pipe 32, and the second detection pipe 33, and by making the first detection pipe 32 transparent and placing the monitoring element 34 on the circumference of the first detection pipe 32, the monitoring element 34 can perform real-time microbial monitoring of the soda solution in the pipeline. Furthermore, during ATP fluorescence detection, the testing personnel only need to control the flow rate of the bypass pipe 2 via the electric three-way valve to achieve sampling and testing without stopping the system. Additionally, when the filling system enters the next testing time point, the powerful electromagnet 52 is automatically energized. If the testing personnel miss a test, the second detection pipe 33 is in a non-conductive state, giving it a "historical record" function. This ensures that the solution at the missed testing time point is always within the second detection pipe 33, allowing the testing personnel to perform a supplementary test, thus avoiding a gap in the detection of microbial content in the soda solution.

[0075] Example 2

[0076] In practical use, it was found that directly wiping the inner wall of the pipe with a sampling swab only allows for testing while the machine is stopped. Furthermore, when sampling at different locations, it is necessary to ensure that the wiping force and area remain consistent; otherwise, the accuracy of the test will be affected. Moreover, for microbial films tightly adhering to the inner wall of the pipe, wiping with a sampling swab alone may not be sufficient to completely obtain all microorganisms. Therefore, further improvements were made based on the above embodiments.

[0077] Please see Figures 8 to 10 As shown, a cleaning component 6 is provided inside both the first detection tube 32 and the second detection tube 33. The cleaning component 6 can rotate under the drive of the fluid and clean the inner walls of the first detection tube 32 and the second detection tube 33.

[0078] The cleaning component 6 includes a connecting ring 61 rotatably connected to the first detection tube 32 and the second detection tube 33. A plurality of circumferentially distributed scrapers 62 are provided on one side of the connecting tube. A plurality of circumferentially distributed guide plates 63 are fixedly connected to the inner ring of the connecting ring 61. A water inlet tube 64 is provided at the center of the connecting ring 61. A plurality of circumferentially distributed connecting strips 65 are provided between the connecting ring 61 and the water inlet tube 64. A water inlet groove 66 communicating with the water inlet tube 64 is opened inside the scraper 62, the connecting ring 61 and the connecting strips 65. A plurality of spray holes 621 communicating with the water inlet groove 66 are opened on one side of the scraper 62. In this embodiment, the plurality of spray holes 621 are located on the back side of the scraper 62 in the direction of rotation, that is, after the liquid is sprayed out from the spray holes 621, it can further push the scraper 62 to rotate.

[0079] The nozzle 621 is angled, and the angle formed by the axis of the nozzle 621 and the tangent of the first detection tube 32 is acute. The interior of the water guide tube 64 is provided with a conical part 67 for guiding the flow of liquid.

[0080] It should be noted that in this embodiment, the rotation speed of the connecting ring 61 and the scraper 62 is relatively slow.

[0081] Based on the above embodiments, during use, when the soda solution enters the first detection tube 32 and the second detection tube 33, multiple guide plates 63 drive the connecting ring 61 and scraper 62 to rotate under the action of the liquid. At this time, the scraper 62 can physically clean the inside of the two detection tubes. For some tightly adhered biofilms, the scraper 62 has a good cleaning effect. Furthermore, when the soda solution enters the water inlet tube 64, it directly impacts the conical part 67. At this time, the liquid is dispersed to the periphery under the action of the conical part 67 and enters the water inlet tank 66. The solution in the water inlet tank 66 is sprayed out through the spray hole 621 on one side of the scraper 62. The sprayed solution can not only strengthen the cleaning of the inner walls of the two detection tubes, but also slow down or prevent the formation of biofilm on the inner walls of the two detection tubes.

[0082] In summary, through the design of the cleaning component 6, the scraper 62 can clean the inner walls of the two detection tubes under the action of the fluid. The liquid sprayed from the nozzle 621 not only enhances the cleaning of the inner walls of the two detection tubes but also slows down or prevents the formation of biofilm on the inner walls of the two detection tubes. Furthermore, when the second detection tube 33 is in a state of missed detection, the liquid inside it is in a slightly quiescent state, and microorganisms float and sink in the liquid. When the testing personnel conduct a retest, both the quiescent microorganisms in the liquid and the microorganisms slightly attached to the tube wall are more likely to adhere to the sampling swab compared to the traditional method. This improves or even avoids the problem of large fluctuations in test results due to different wiping force and wiping area during multiple sampling processes.

[0083] Example 3

[0084] Because the cleaning components 6 for cleaning the inner walls of the first detection tube 32 and the second detection tube 33 are provided, they not only improve the cleaning effect of the inner wall of the first detection tube 32 when the filling pipe 1 is cleaned and disinfected, but also avoid the detection deviation caused by insufficient wiping force of the sampling swab when the second detection tube 33 is sampled and tested. However, if the scraper 62 is constantly rotating under the drive of the water flow, it will prevent the biofilm from forming and accumulating in the first detection tube 32. The biofilm on the inner wall of the filling pipe 1 will still form and fall off periodically. Therefore, the microorganisms detected by the monitoring component 34 in the "too clean" bypass pipe 2 may not accurately reflect the periodic or continuous microbial contamination caused by the shedding of biofilm in the filling pipe 1, resulting in a low detection value.

[0085] Please see Figures 11 to 13 As shown, the first switching plate 41 is also provided with a control mechanism 7. The control mechanism 7 includes two actuators 71 and a connector 72. The actuators 71 are located on the periphery of two through holes 43, and the connector 72 forms a driving engagement with the drive component 5.

[0086] When the detection element 3 is in the detection state, the drive element 5 can control the rotation state of the connecting ring 61 through the connector 72 and the actuator 71. That is, when the powerful electromagnet 52 is in a weak adsorption state, the connector 72 moves to one side under magnetic adsorption, the pin 712 disengages from the slot 611, and the connecting ring 61 and the scraper 62 can rotate normally under water flow. When the powerful electromagnet 52 is completely de-energized, the pressure ring 721 drives the actuator 71 to insert into the slot 611 under the action of the second elastic element 713, so that the connecting ring 61 stops rotating.

[0087] The actuator 71 includes a through groove 711 on the first switching plate 41, a pin 712 is slidably connected in the through groove 711, a second elastic member 713 is provided between the pin 712 and the through groove 711, and multiple slots 611 matching the pin 712 are provided on one side of each of the two connecting rings 61.

[0088] The connector 72 includes two pressure rings 721 that match the through hole 43. The two pressure rings 721 are fixedly connected to the same connecting rod 722. The adsorption plate 53 has two symmetrically arranged connecting grooves. The movable plate 723 is slidably connected inside the connecting grooves. The connecting pin 55 is set on the movable plate 723. The movable plate 723 can be attracted by the powerful electromagnet 52. The end of the connecting rod 722 away from the pressure rings 721 is fixedly connected to the connecting pin 55. A third elastic element 724 is provided between the movable plate 723 and the powerful electromagnet 52. The elastic force of the third elastic element 724 is less than the elastic force of the first elastic element 54.

[0089] In this embodiment, the powerful electromagnet 52 is used in two states: a weak adsorption state and a strong adsorption state. The difference between the two states is that the magnetic strength generated by the powerful electromagnet 52 is different due to the different current magnitudes. In the weak adsorption state, the movable plate 723 can move towards the powerful electromagnet 52 under the elastic force of the third elastic element 724, while the adsorption plate 53 cannot move to one side. When the monitoring element 34 is in the daily monitoring state, the powerful electromagnet 52 is in the de-energized state, the pressure ring 721 contacts the pin 712 and inserts the pin 712 into the slot 611. At this time, the connecting ring 61 cannot rotate under the action of the fluid, and the microbial content in the first detection tube 32 and the second detection tube 33 is basically the same as the microbial content in the filling pipe 1.

[0090] When it is necessary to sample the liquid in the second detection tube 33, firstly, the powerful electromagnet 52 is energized and placed in a weak adsorption state for a period of time. The pressure ring 721 disengages from the pin 712, and the pin 712 disengages from the slot 611 under the action of the second elastic element 713. At this time, the connecting ring 61 can rotate under the drive of the guide plate 63 and the fluid. At this time, the microorganisms attached to the inner wall are scraped off by the scraper 62 and float in the liquid to be tested. Then, the powerful electromagnet 52 enters a strong adsorption state. At this time, the second detection tube 33 is in a non-conductive state. After opening the cover of the second sampling tube 313, the sampling swab can be directly inserted into the interior of the second detection tube 33 for sampling.

[0091] Through the control mechanism 7, connector 72, and actuator 71, when the powerful electromagnet 52 is de-energized, the pressure ring 721 causes the pin 712 to insert into the slot 611. At this time, the connector 61 and scraper 62 cannot rotate under the action of the fluid, thus avoiding the problem of a large difference in the microbial content between the two detection tubes and the filling pipe 1 due to the inability of the biofilm to form in the inner wall of the detection tube. Furthermore, the powerful electromagnet 52 is divided into a weak adsorption state and a strong adsorption state. When it is necessary to sample the liquid in the second detection tube 33, the powerful electromagnet 52 is in the weak adsorption state. At this time, the scraper 62 can rotate with the fluid and scrape off the microorganisms, so that the microorganisms attached to the inner wall can sink and float again in the liquid in the second detection tube 33. When the sampling swab is used, only the liquid needs to be sampled, and there is no need to wipe the inner wall. Therefore, there will be no problem of deviation in the detection results caused by different wiping force and wiping area when multiple samples are taken.

[0092] Example 4:

[0093] This embodiment also proposes a method for monitoring the production quality of soda water, including the following steps:

[0094] S1. Real-time monitoring: Control the flow of sodium bicarbonate solution to bypass pipe 2, so that it flows through the first detection pipe 32 and the second detection pipe 33 at the same time, and monitor the microorganisms of the flowing liquid in real time through the monitoring device 34.

[0095] S2. Timed sampling: After the predetermined sampling time is reached, the liquid flow rate of the bypass tube 2 is reduced, and the powerful electromagnet 52 is energized to switch the second detection tube 33 to the sampling state. The liquid in the second detection tube 33 is sampled by sampling swab.

[0096] S3, Missed Inspection Traceability: If sampling is not performed after the scheduled time, the powerful electromagnet 52 will remain energized, causing the liquid to be tested to remain in the tube. The remaining liquid will be sampled again during subsequent supplementary inspections.

[0097] S4: Pipe wall maintenance: During non-sampling periods, the cleaning component 6 is kept locked by the control mechanism 7 to ensure that the microbial adhesion state of the inner wall of the test tube is consistent with that of the filling pipeline 1.

[0098] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A soda water production quality monitoring system, comprising a filling pipeline, characterized in that, A bypass pipe is connected to one side of the filling pipeline, and the bypass pipe includes: The detection device includes a housing connected to a bypass pipe, and a first detection tube and a second detection tube are provided on the housing. The first detection tube is made of transparent material and has a monitoring device for monitoring the content of microorganisms in the liquid on its circumference. The switching component is located at both ends of the housing along the fluid flow direction. It includes a first switching plate and a second switching plate that are configured to cooperate with the first detection tube and the second detection tube. Each of the first switching plate and the second switching plate has four through holes that cooperate with the first detection tube and the second detection tube. The four through holes correspond to the detection state and the missed detection state of the first detection tube and the second detection tube, respectively. The driving component is located on the outside of the housing and forms a driving engagement with the switching component; The driving component can control the rotation of the first switching plate and the second switching plate to switch the detection state and the missed detection state of the detection component. The housing includes two cylindrical bodies that are respectively fixedly connected to a bypass pipe; The driving component includes a connecting plate fixedly connected to the circumference of the cylinder. A powerful electromagnet is provided on the side of the connecting plate near the first switching plate. An adsorption plate is provided on one side of the housing to form a magnetic interaction with the powerful electromagnet. A first elastic element is provided between the adsorption plate and the connecting plate. A connecting pin is fixedly connected to the adsorption plate and penetrates into the cylinder. The connecting pin is slidably connected to the cylinder and the first switching plate respectively. A groove is provided at the end of the connecting pin away from the adsorption plate. A slider matching the groove is provided on the first switching plate. A spiral groove is provided on the circumference of the cylinder. A connecting block matching the spiral groove is provided on the adsorption plate. When the adsorption plate moves to one side under the adsorption of a powerful electromagnet, the adsorption plate drives the first switching plate to rotate under the action of the spiral groove and the connecting block. An arc-shaped groove matching the rotation direction of the adsorption plate is opened on one side of the cylinder.

2. The soda water production quality monitoring system according to claim 1, characterized in that, A first sampling tube and a second sampling tube are symmetrically arranged on one side of one of the cylinders. The first detection tube and the second detection tube are connected and arranged between the two cylinders. The first switching plate and the second switching plate are located in the two cylinders respectively, and the first switching plate and the second switching plate are fixedly connected by the same rotating shaft that passes through the cylinder. A guide head is fixedly connected to one side of one of the through holes that matches the second detection tube. The end of the guide head away from the second detection tube forms a sealed contact with the inner wall of the cylinder.

3. The soda water production quality monitoring system according to claim 2, characterized in that, The monitoring device includes a laser head and a photodetector fixed to the circumference of the first detection tube. The laser head can emit a laser of a specific wavelength to penetrate the tube wall of the first detection tube and excite the fluorescent substances of microorganisms in the liquid. The photodetector can collect the fluorescent signals of microorganisms.

4. The soda water production quality monitoring system according to claim 3, characterized in that, Both the first and second detection tubes are equipped with cleaning components inside. These cleaning components can rotate under the drive of fluid and clean the inner walls of the first and second detection tubes.

5. The soda water production quality monitoring system according to claim 4, characterized in that, The cleaning component includes a connecting ring rotatably connected to the first and second detection tubes. A plurality of circumferentially distributed scrapers are provided on one side of the connecting ring. A plurality of circumferentially distributed guide plates are fixedly connected to the inner ring of the connecting ring. A water inlet tube is provided at the center of the connecting ring. A plurality of circumferentially distributed connecting strips are provided between the connecting ring and the water inlet tube. A water inlet groove communicating with the water inlet tube is opened inside the scrapers, the connecting ring and the connecting strips. A plurality of spray holes communicating with the water inlet groove are opened on one side of the scrapers.

6. The soda water production quality monitoring system according to claim 5, characterized in that, The nozzle is angled, and the angle between the axis of the nozzle and the tangent of the first detection tube is acute. The interior of the water guide tube is provided with a conical component to guide the flow of liquid.

7. The soda water production quality monitoring system according to claim 6, characterized in that, The first switching plate is also provided with a control mechanism, which includes two actuators and a connector. The actuators are located on the periphery of two of the through holes, and the connector forms a driving engagement with the driving component. When the detection component is in the detection state, the driving component can control the rotation state of the connecting ring through the connecting component and the actuator.

8. The soda water production quality monitoring system according to claim 7, characterized in that, The actuator includes a through slot on the first switching plate, a pin is slidably connected in the through slot, a second elastic element is provided between the pin and the through slot, and multiple slots matching the pin are provided on one side of each of the two connecting rings. The connector includes two pressure rings that match the through holes. The two pressure rings are fixedly connected to the same connecting rod. The adsorption plate has two symmetrically arranged connecting grooves. A movable plate is slidably connected inside the connecting grooves. The connecting pin is set on the movable plate. The movable plate can be attracted by a powerful electromagnet. The end of the connecting rod away from the pressure rings is fixedly connected to the connecting pin. A third elastic element is provided between the movable plate and the powerful electromagnet. The elastic force of the third elastic element is less than that of the first elastic element.

9. A method for monitoring the production quality of soda water, comprising using a soda water production quality monitoring system according to any one of claims 1-8, characterized in that, Includes the following steps: S1. Real-time monitoring: Control the flow of sodium bicarbonate solution to the bypass pipeline so that it flows through the first detection tube and the second detection tube at the same time, and perform real-time microbial monitoring on the liquid flowing through the first detection tube through the monitoring device; S2. Timed sampling: After the predetermined sampling time is reached, the liquid flow rate of the bypass tube is reduced, and the powerful electromagnet is energized to switch the second detection tube to the sampling state. The liquid in the second detection tube is sampled by sampling swab. S3, Missed Detection Traceability: If sampling is not performed after the predetermined time, the powerful electromagnet will always be energized, so that the liquid to be tested will remain in the second detection tube. When the test is performed again, the remaining liquid will be sampled. S4: Pipe wall maintenance: During non-sampling periods, the cleaning components are kept locked by the control mechanism to ensure that the microbial adhesion state on the inner wall of the test tube is consistent with that of the filling pipeline.

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