A refreshing beer fermentation tank with detection and alarm functions

Abstract

This invention relates to the field of beer brewing technology, specifically to a refreshing beer fermentation tank with detection and alarm functions, comprising a tank body; a sampling unit is provided on one side of the tank body for detecting the color and foam color of the beer inside the tank. The sampling unit includes a sampling slot, which has a sampling state and a detection state. When the sampling slot is in the sampling state, it is horizontal; when the sampling slot is in the detection state, it is vertical. A detection unit is provided on the sampling unit, including an air supply unit located above the sampling unit and a detection shell vertically arranged below the sampling unit. A detection cavity is formed inside the detection shell, and the maximum volume of the detection cavity is larger than the volume of the sampling slot. A camera is horizontally arranged on one side of the detection cavity, with the camera end pointing horizontally towards the detection shell. The sidewall of the detection shell in front of the camera is made of a transparent material. This invention avoids beer loss during the brewing process due to the need for detection.

Description

Technical Field

[0001] This invention relates to the field of beer brewing technology, specifically to a refreshing beer fermentation tank with detection and alarm functions. Background Technology

[0002] During the beer brewing process, yeast converts the sugar in malt into alcohol and carbon dioxide. Various indicators of the beer need to be monitored during brewing to ensure its quality, primarily including carbon dioxide concentration, alcohol content, color, and foam.

[0003] Chinese Patent Publication No. CN106525944B discloses a beer fermentation tank with detection and alarm functions, including a carbon dioxide input / output port, a solenoid valve, a fermentation tank, a stirrer, a material addition port, a monitoring and observation port, an insulation layer, a cooling water outlet, a stirring rod, a drain outlet, a beer outlet, a cooling water inlet, and a sampling port; the stirrer is located at the center of the top of the fermentation tank; the material addition port is above the stirrer; the monitoring and observation port is on one side of the top of the fermentation tank; the carbon dioxide input / output port is on the other side of the top of the fermentation tank; the sampling port is in the middle of one side of the fermentation tank; the cooling water inlet is on the lower part of one side of the fermentation tank, on the same side as the sampling port; the cooling water outlet is in the upper middle part of the other side of the fermentation tank; the beer outlet is on one side of the bottom of the fermentation tank; the drain outlet is in the center of the bottom of the fermentation tank; the carbon dioxide input / output port is equipped with a CO2 gas sensor.

[0004] The above-mentioned solution monitors the carbon dioxide concentration in beer fermentation tanks by setting up carbon dioxide gas sensors. However, in addition to carbon dioxide concentration, other indicators affecting beer quality include color and foam. The traditional process of judging color and foam requires manual sampling and judgment, which is labor-intensive. Although instruments are used, the judgment is still subjective, and the beer is prone to contamination during sampling. Furthermore, the beer sampled cannot be poured back into the beer fermentation tank for continued fermentation, resulting in some beer being wasted due to testing. Summary of the Invention

[0005] To address the aforementioned issues, a refreshing beer fermentation tank with detection and alarm functions is provided. This tank features a sampling trough that can switch between vertical and horizontal positions. An air supply unit and a detection shell are located above and below the sampling trough, respectively. When the sampling trough switches from horizontal to vertical, the air supply unit supplies air to the detection shell as the beer sample flows into it, creating foam on the surface of the beer. A camera is positioned on one side of the detection shell, with the front side wall of the shell made transparent. This allows the camera to simultaneously detect the beer's color, foam color, and foam dissipation speed. After detection, an extraction block inside the detection shell pushes the beer back in, and the sampling trough rotates from horizontal to vertical, allowing the detected beer to flow back into the tank.

[0006] To address the problems of existing technologies, this invention provides a refreshing beer fermentation tank with detection and alarm functions, comprising a tank body; a sampling unit is provided on one side of the tank body for detecting the color and foam color of the beer inside the tank. The sampling unit includes a sampling slot, which has a sampling state and a detection state. When the sampling slot is in the sampling state, it is horizontal; when the sampling slot is in the detection state, it is vertical. A detection unit is provided on the sampling unit, including an air supply unit located above the sampling unit and a detection shell vertically located below the sampling unit. A detection cavity is formed inside the detection shell, and the maximum volume of the detection cavity is greater than the volume of the sampling slot. A camera is horizontally arranged on one side of the detection cavity, with the camera end pointing horizontally towards the detection shell. The sidewall of the detection shell in front of the camera is made of a transparent material. When the sampling slot is horizontal, the air supply unit is disconnected from the detection shell; when the sampling slot is vertical, the air supply unit is connected to the detection shell through the sampling slot.

[0007] Preferably, the sampling unit further includes a sampling shell communicating with the tank body. The interior of the sampling shell is a cylindrical cavity structure. A rotating column is rotatably arranged inside the sampling shell. The axis of the rotating column is collinear with the axis of the sampling shell. A first rotary actuator for driving the rotating column to rotate is provided at one end of the rotating column. The sampling groove is opened through the side wall of the rotating column along the radial direction of the rotating column.

[0008] Preferably, an extraction block is vertically movable inside the detection housing, and a linear actuator is vertically arranged at the bottom of the detection housing. The output end of the linear actuator passes through the bottom of the detection housing and is fixedly connected to the bottom of the extraction block. The upper end of the extraction block has an arc-shaped structure, and the diameter of the arc-shaped structure is the same as the diameter of the rotating column.

[0009] Preferably, the air supply unit includes a follower plate that moves vertically above the sampling shell. There is a gap between the follower plate and the sampling shell. A corrugated pipe is vertically arranged in the gap. The two ends of the corrugated pipe are fixedly connected to the upper ends of the follower plate and the sampling shell, respectively. When the sampling slot is in a horizontal state, the corrugated pipe, the follower plate, and the rotating column together form a sealed air-filled cavity. Multiple guide components are evenly arranged around the axis of the corrugated pipe outside the corrugated pipe. The guide components include a guide rod that is vertically fixed on the top of the follower plate and a guide sleeve that is vertically fixed on the upper part of the sampling shell. The lower part of the guide rod extends into the guide sleeve and slides with the guide sleeve.

[0010] Preferably, a placement groove is vertically provided on the upper part of the extraction block, and an alcohol content detector is installed in the placement groove with the detection end of the alcohol content detector facing vertically upward.

[0011] Preferably, a cleaning unit for cleaning the alcohol content detector is provided on the extraction block. The cleaning unit includes a cleaning tank located on one side of the placement slot. The cleaning tank is located inside the extraction block and communicates with the detection chamber. During cleaning, the cleaning tank supplies clean water to the detection chamber. A first valve body is provided on the side wall of the detection shell. The first valve body is located at the connection between the detection shell and the sampling shell. Water used to clean the detection chamber is discharged from the first valve body.

[0012] Preferably, the cleaning tank and the placement tank are connected. A lifting unit is provided at the bottom of the alcohol meter to drive the alcohol meter to move vertically. When the alcohol meter moves vertically, it has a highest position and a lowest position. When the alcohol meter is at the lowest position, the connection between the cleaning tank and the placement tank is located on the horizontal side of the detection end of the alcohol meter. When the alcohol meter is at the highest position, the alcohol meter blocks the connection between the cleaning tank and the placement tank.

[0013] Preferably, a sampling tube is provided on the side of the sampling shell facing the tank body. The sampling shell is connected to the tank body through the sampling tube. The sampling tube extends from one side of the sampling shell into the inside of the tank body, and the end of the sampling tube located inside the tank body is vertically downward.

[0014] Preferably, a filter screen is provided at the end of the sampling tube located inside the tank.

[0015] Preferably, a vent pipe is provided on the side of the sampling shell away from the sampling tube, and the end of the vent pipe away from the sampling tube is located on the side wall of the tank. The sampling slot is connected to the tank through the vent pipe, and the connection point between the vent pipe and the tank is located above the beer liquid level inside the tank. An air pump is installed inside the vent pipe.

[0016] The advantages of this invention compared to the prior art are: 1. This invention features a sampling trough that can switch between vertical and horizontal positions. An air supply unit and a detection shell are positioned above and below the sampling trough, respectively. When the sampling trough switches from horizontal to vertical, the air supply unit supplies air to the detection shell as the beer sample flows in, creating foam on the surface of the beer. A camera is positioned on one side of the detection shell, with the front side wall transparent, allowing simultaneous detection of the beer's color, foam color, and foam dissipation speed. After detection, an extraction block inside the detection shell pushes the beer back in, and the sampling trough rotates from horizontal to vertical, allowing the detected beer to flow back into the tank. This allows for simultaneous detection of beer color, foam color, and foam dissipation time without external contact. Furthermore, the detected beer can be returned to the tank after detection, preventing beer loss during brewing due to testing requirements.

[0017] 2. By setting up a cleaning unit and a lifting unit at the bottom of the alcohol meter, the alcohol meter can be raised and lowered vertically within the placement tank. When the alcohol meter is at its lowest position in the placement tank, the detection end of the alcohol meter is located at the front end of the connection between the cleaning tank and the placement tank. The water flow from the cleaning tank has a large impact force, so when cleaning the detection chamber, the water flow with a large impact force can first clean the detection end of the alcohol meter, thus improving the cleaning effect on the detection end of the alcohol meter. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a refreshing beer fermentation tank with detection and alarm functions according to the present invention.

[0019] Figure 2 This is a side view of a refreshing beer fermentation tank with detection and alarm functions according to the present invention.

[0020] Figure 3 This invention relates to a refreshing beer fermentation tank with detection and alarm functions. Figure 2 Schematic diagram of cross-section at point AA.

[0021] Figure 4 This is a cross-sectional three-dimensional schematic diagram of a refreshing beer fermentation tank with detection and alarm function according to the present invention.

[0022] Figure 5 This invention relates to a refreshing beer fermentation tank with detection and alarm functions. Figure 4 A magnified view of a portion of point B in the middle.

[0023] Figure 6This invention relates to a refreshing beer fermentation tank with detection and alarm functions. Figure 4 A magnified view of a portion of point C.

[0024] Figure 7 This invention relates to a refreshing beer fermentation tank with detection and alarm functions. Figure 4 A magnified view of a portion of point D.

[0025] Figure 8 This is a three-dimensional schematic diagram of a refreshing beer fermentation tank with detection and alarm function of the present invention after the upper outer shell has been removed.

[0026] Figure 9 This is a cross-sectional three-dimensional schematic diagram of the detection unit and sampling unit of a refreshing beer fermentation tank with detection and alarm function according to the present invention.

[0027] Figure 10 This invention relates to a refreshing beer fermentation tank with detection and alarm functions. Figure 9 A magnified view of a portion of point E in the middle.

[0028] The numbers on the map are: 1. Tank body; 11. Carbon dioxide concentration sensor; 12. Stirring unit; 13. Liquid outlet; 14. Slag outlet; 2. Sampling unit; 21. Sampling tank; 22. Sampling shell; 23. Rotating column; 24. First rotary actuator; 3. Detection unit; 31. Gas supply unit; 311. Bellows; 312. Follower plate; 313. Guide rod; 314. Guide sleeve; 32. Camera; 33. Detection shell; 34. Extraction block; 341. Lifting frame; 342. Placement slot; 35. Linear actuator; 36. Alcohol content meter; 37. Cleaning unit; 371. Cleaning tank; 372. First valve body; 38. Lifting unit; 381. Threaded rod; 382. Guide slot; 383. Gear ring; 384. Gear; 385. Second rotary actuator; 4. Sampling tube; 41. Filter screen; 5. Vent pipe; 51. Air pump. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figures 1-3 and Figure 9A refreshing beer fermentation tank with detection and alarm functions includes a tank body 1; a sampling unit 2 is provided on one side of the tank body 1 for detecting the color and foam color of the beer inside the tank body 1. The sampling unit 2 includes a sampling slot 21, which has a sampling state and a detection state. When the sampling slot 21 is in the sampling state, it is in a horizontal state; when the sampling slot 21 is in the detection state, it is in a vertical state. A detection unit 3 is provided on the sampling unit 2, and the detection unit 3 includes an air supply unit 3 located on the upper part of the sampling unit 2. 1. A detection shell 33 is vertically arranged at the lower part of the sampling unit 2. A detection cavity is formed inside the detection shell 33. The maximum volume of the detection cavity is greater than the volume of the sampling groove 21. A camera 32 is horizontally arranged on one side of the detection cavity. The camera end of the camera 32 points horizontally towards the detection shell 33. The side wall of the detection shell 33 at the front end of the camera 32 is made of transparent material. When the sampling groove 21 is in a horizontal state, the air supply unit 31 is disconnected from the detection shell 33. When the sampling groove 21 is in a vertical state, the air supply unit 31 is connected to the detection shell 33 through the sampling groove 21.

[0031] In the beer brewing process, there are many factors that affect the final quality of beer, such as alcohol content, carbon dioxide concentration, body color, and foam color. Among them, alcohol content and carbon dioxide concentration can be monitored in real time by setting up an alcohol content detector 36 and a carbon dioxide concentration sensor 11. However, body color and foam color usually need to be judged by taking out the beer. This requires manual removal of a certain amount of beer for testing at regular intervals. Moreover, the beer that has been tested cannot be poured back into the tank 1, resulting in waste of beer during the brewing process due to testing. At the same time, during the manual removal of beer samples, there is a risk of contact between the beer and the outside air, which can easily lead to contamination of the beer in the tank 1.

[0032] To avoid the above situation, a sampling unit 2 capable of sampling the beer inside the tank 1, and a detection unit 3 connected to the sampling unit 2 are installed on one side of the tank 1. The specific structure and working process of the sampling unit 2 and the detection unit 3 are as follows: Sampling unit 2 periodically samples the beer in tank 1 according to a preset time. When sampling the beer in tank 1, the sampling slot 21 is first made horizontal. Sampling unit 2 includes a sampling shell 22 that communicates with tank 1. The interior of sampling shell 22 is a cylindrical cavity structure. A rotating column 23 is rotatably arranged inside sampling shell 22. The axis of rotating column 23 is collinear with the axis of sampling shell 22. A first rotary actuator 24 for driving rotating column 23 is provided at one end of rotating column 23. Sampling slot 21 is opened through the side wall of rotating column 23 along the radial direction of rotating column 23. The first rotary actuator 24 is preferably a servo motor. When the first rotary actuator 24 drives the rotating column 23 to rotate, the rotating column 23 can rotate 90 degrees each time, thereby causing the sampling slot 21 set on the rotating column 23 to switch back and forth between the vertical and horizontal states. When the sampling slot 21 is in the horizontal state, the sampling slot 21 is connected to the beer in the tank 1, and the beer in the tank 1 fills the sampling slot 21. When it is necessary to test the beer, the first rotary actuator 24 drives the rotating column 23 to rotate, so that the rotating column 23 drives the sampling slot 21 to rotate from the horizontal state to the vertical state. When the sampling slot 21 is in a vertical position, it is disconnected from the tank 1. The beer stored in the sampling slot 21 is called a beer sample. A vertically movable extraction block 34 is installed inside the detection shell 33. When the extraction block 34 moves downward, it draws the beer sample from the sampling slot 21 into the detection shell 33. The gas supply unit 31 located at the top of the detection shell 33 supplies gas to the upper part of the detection shell 33. Since the volume of the detection chamber in the detection shell 33 is larger than the volume of the sampling slot 21, the beer sample in the sampling slot 21 enters the detection shell... After the detection chamber in 33 is filled, it will not be completely filled with the beer sample. Foam will form on the surface of the beer entering the chamber. A camera 32 positioned on one side of the detection chamber 33 can simultaneously detect the color of the foam and the color of the beer, thus determining the fermentation status. Since the amount of gas produced in the beer sample is limited, the foam will gradually dissipate after a period of time. The time it takes for the foam to dissipate is also an important criterion for judging beer quality, and the camera 32 can also detect this dissipation time. After the beer foam dissipates, the extraction block 34 rises, pushing all the beer into the sampling trough 21. Finally, the rotating column 23 rotates 90 degrees, and the sampling trough 21 returns to a horizontal position, allowing the beer sample in the sampling trough 21 to be discharged back into the tank 1.

[0033] It is worth noting that the gas supply unit 31 is not connected to the outside world. This way, when the gas supply unit 31 supplies gas to the detection chamber, the beer sample will not be contaminated, making it easy to discharge the beer back into the tank 1 after the test.

[0034] This allows for the simultaneous detection of beer color, foam color, and foam dissipation time without contact with the outside world. Furthermore, after the detection is completed, the beer can be returned to tank 1, preventing beer loss during the brewing process due to testing requirements.

[0035] Reference Figure 9 The sampling unit 2 also includes a sampling shell 22 connected to the tank 1. The interior of the sampling shell 22 is a cylindrical cavity structure. A rotating column 23 is rotatably arranged inside the sampling shell 22. The axis of the rotating column 23 is collinear with the axis of the sampling shell 22. A first rotary actuator 24 for driving the rotating column 23 to rotate is provided at one end of the rotating column 23. The sampling groove 21 is opened through the side wall of the rotating column 23 along the radial direction of the rotating column 23.

[0036] Reference Figure 4 and Figure 9 An extraction block 34 is vertically movable inside the detection shell 33. A linear driver 35 is vertically arranged at the bottom of the detection shell 33. The output end of the linear driver 35 passes through the bottom of the detection shell 33 and is fixedly connected to the bottom of the extraction block 34. The upper end of the extraction block 34 is an arc-shaped structure, and the diameter of the arc-shaped structure is the same as the diameter of the rotating column 23.

[0037] The internal space of the detection shell 33 located above the extraction block 34 constitutes the detection cavity. The extraction block 34 has a highest position and a lowest position along its vertical movement path. When the extraction block 34 is at the highest position, the volume of the detection cavity is zero, and the volume inside the detection cavity is the smallest. When the extraction block 34 is at the lowest position, the volume of the detection cavity is the largest, and the volume inside the detection cavity is greater than the volume of the sampling slot 21. After the beer sample in the sampling slot 21 flows into the detection cavity, the remaining part of the detection cavity is filled by the gas supply unit 31, so that foam is generated after the beer enters the detection cavity.

[0038] Reference Figure 5 and Figure 9 The air supply unit 31 includes a follower plate 312 that moves vertically above the sampling shell 22. There is a gap between the follower plate 312 and the sampling shell 22. A bellows 311 is vertically arranged in the gap. The two ends of the bellows 311 are fixedly connected to the upper ends of the follower plate 312 and the sampling shell 22, respectively. When the sampling slot 21 is in a horizontal state, the bellows 311, the follower plate 312 and the rotating column 23 together form a sealed air-filled cavity. Multiple guide components are evenly arranged around the axis of the bellows 311 outside the bellows 311. The guide components include a guide rod 313 that is vertically fixed on the top of the follower plate 312 and a guide sleeve 314 that is vertically fixed on the upper part of the sampling shell 22. The lower part of the guide rod 313 extends into the guide sleeve 314 and slides with the guide sleeve 314.

[0039] The guide rod 313 and guide sleeve 314 are used to ensure that the follower plate 312 can move up and down stably in the vertical direction. When the extraction block 34 descends, the follower plate 312 descends accordingly. This is because the air in the bellows 311 flows into the detection chamber through the sampling groove 21. When the detection is completed, the foam on the upper layer of the beer sample dissipates. When the extraction block 34 rises to the highest position, the foam on the upper layer of the beer will not flow into the bellows sleeve.

[0040] Reference Figure 10 An alcohol content detector 36 is installed in the upper part of the extraction block 34, with the detection end of the alcohol content detector 36 facing upwards.

[0041] When the beer sample in the sampling slot 21 flows into the detection shell 33, the alcohol content detector 36 set on the extraction block 34 can also detect the alcohol content of the beer.

[0042] Reference Figure 6 , Figure 9 and Figure 10 A cleaning unit 37 for cleaning the alcohol content detector 36 is provided on the extraction block 34. The cleaning unit 37 includes a cleaning tank 371 located on one side of the placement tank 342. The cleaning tank 371 is located inside the extraction block 34 and communicates with the detection chamber. During cleaning, the cleaning tank 371 supplies clean water to the detection chamber. A first valve body 372 is provided on the side wall of the detection shell 33. The first valve body 372 is located at the connection between the detection shell 33 and the sampling shell 22. The water used to clean the detection chamber is discharged from the first valve body 372.

[0043] Reference Figure 6 and Figure 10 The cleaning tank 371 is connected to the placement tank 342. A lifting unit 38 is provided at the bottom of the alcohol meter 36 to drive the alcohol meter 36 to move vertically. When the alcohol meter 36 moves vertically, it has a highest position and a lowest position. When the alcohol meter 36 is in the lowest position, the connection between the cleaning tank 371 and the placement tank 342 is located on the horizontal side of the detection end of the alcohol meter 36. When the alcohol meter 36 is in the highest position, the alcohol meter 36 blocks the connection between the cleaning tank 371 and the placement tank 342.

[0044] The lifting unit 38 is located between the extraction block 34 and the lifting frame 341. The lifting unit 38 includes a threaded rod 381 vertically fixed at the lower part of the alcohol content detector 36. The threaded rod 381 vertically penetrates the bottom of the placement slot 342. The threaded rod 381 can only move in the vertical direction and cannot rotate around its own axis. A guide groove 382 is provided on the side wall of the threaded rod 381 in the vertical direction. The threaded rod 381 slides in the vertical direction with the bottom of the placement slot 342 through the guide groove 382. A toothed ring 383 is sleeved on the periphery of the threaded rod 381. The toothed ring 383 is threadedly engaged with the threaded rod 381. A gear 384 meshes on one side of the toothed ring 383. A second rotary driver 385 is provided at the end of the gear 384 to drive the gear 384 to rotate. The second rotary driver 385 is preferably a micro servo motor.

[0045] During testing, the linear actuator 35 drives the extraction block 34 to descend, and the beer sample in the sampling slot 21 flows into the testing chamber. After the test, the linear actuator 35 drives the extraction block 34 to rise again, and then the cleaning unit 37 starts operating. First, the second rotary actuator 385 drives the gear ring 383 to rotate through the gear 384, causing the threaded rod 381 to drive the alcohol content detector 36 to descend from its highest position. During the descent, the alcohol content detector 36 gradually clears the connection between the cleaning tank 371 and the placement tank 342, so that the cleaning tank 371 can supply clean water to the testing chamber through the placement tank 342. It is worth noting that when the cleaning tank 371 supplies clean water to the testing chamber, the linear actuator 35 drives the extraction block 34 to gradually descend. After the volume of the testing chamber reaches its maximum, the extraction block 34 stops descending, the first valve body 372 opens, and the water in the testing chamber is discharged through the first valve body 372. When the alcohol meter 36 is at its lowest position in the placement tank 342, the detection end of the alcohol meter 36 is located at the front end of the connection between the cleaning tank 371 and the placement tank 342. The water flow from the cleaning tank 371 has a large impact force, so when cleaning the detection chamber, the detection end of the alcohol meter 36 can be cleaned first, thus improving the cleaning effect of the detection end of the alcohol meter 36.

[0046] Reference Figure 7 A sampling tube 4 is provided on the side of the sampling shell 22 facing the tank body 1. The sampling shell 22 is connected to the tank body 1 through the sampling tube 4. The sampling tube 4 extends from one side of the sampling shell 22 into the inside of the tank body 1, and the end of the sampling tube 4 located inside the tank body 1 is vertically downward.

[0047] Reference Figure 7 A filter screen 41 is installed at the end of the sampling tube 4 located inside the tank 1.

[0048] The sampling tube 4, located inside the tank 1, has its end pointing vertically downwards to prevent material from falling into it during the feeding process. A filter screen 41 is installed at the end of the sampling tube 4 to prevent suspended matter in the tank 1 from entering the sampling tank 21 through the sampling tube 4 and affecting the detection of the camera 32. It is worth noting that the height of the sampling shell 22 is lower than the liquid level of the beer in the tank 1; that is, as long as the sampling tank 21 is horizontal, the beer in the tank 1 can flow into the sampling tank 21 by itself through the sampling tube 4.

[0049] Reference Figure 3 , Figure 4 and Figure 8 A vent pipe 5 is provided on the side of the sampling shell 22 away from the sampling tube 4. The end of the vent pipe 5 away from the sampling tube 4 is located on the side wall of the tank body 1. The sampling trough 21 is connected to the tank body 1 through the vent pipe 5. The connection point between the vent pipe 5 and the tank body 1 is located above the beer liquid level inside the tank body 1. An air pump 51 is provided inside the vent pipe 5.

[0050] After each test, the sampling tank 21 is switched from a vertical position to a horizontal position. Then the air pump 51 is started. The air pump 51 draws gas from the top of the tank 1 through the air pipe 5. After the gas rushes into the air pipe 5, it pushes the beer in the sampling tank 21 and the sampling tube 4 back into the tank 1. In this way, some of the impurities attached to the filter screen 41 can also be cleaned, and the beer that has been tested can also be prevented from remaining in the sampling tank 21.

[0051] A carbon dioxide concentration sensor 11 is installed at the top of the tank 1 to detect the carbon dioxide concentration of the tank 1. A stirring unit 12 is installed inside the tank 1 to stir the raw materials inside the tank 1. Multiple liquid outlets 13 are installed vertically on the side wall of the tank 1. The beer discharged from the liquid outlets 13 at different heights has different tastes. In actual production, the number of liquid outlets 13 can be determined according to the type of beer to be produced. A slag outlet 14 is installed at the bottom of the tank 1. When the beer in the tank 1 is taken out, the residue at the bottom of the tank 1 can be discharged from the slag outlet 14.

[0052] Working principle: The sampling unit 2 periodically samples the beer in the tank 1 according to a preset time. When sampling the beer in the tank 1, the sampling trough 21 is first made to be in a horizontal state. The sampling trough 21 is connected to the beer in the tank 1. The beer in the tank 1 fills the sampling trough 21. When it is necessary to test the beer, the first rotary driver 24 drives the rotating column 23 to rotate, so that the rotating column 23 drives the sampling trough 21 to rotate from a horizontal state to a vertical state. When the sampling slot 21 is in a vertical position, it is disconnected from the tank 1. The beer stored in the sampling slot 21 is called a beer sample. A vertically movable extraction block 34 is installed inside the detection shell 33. When the extraction block 34 moves downward, it draws the beer sample from the sampling slot 21 into the detection shell 33. The gas supply unit 31 located at the top of the detection shell 33 supplies gas to the upper part of the detection shell 33. Since the volume of the detection chamber in the detection shell 33 is larger than the volume of the sampling slot 21, the beer sample in the sampling slot 21 enters the detection shell... After the detection chamber in 33 is filled, it will not be completely filled with the beer sample. Foam will form on the surface of the beer entering the chamber. A camera 32 positioned on one side of the detection chamber 33 can simultaneously detect the color of the foam and the color of the beer, thus determining the fermentation status. Since the amount of gas produced in the beer sample is limited, the foam will gradually dissipate after a period of time. The time it takes for the foam to dissipate is also an important criterion for judging beer quality, and the camera 32 can also detect this dissipation time. After the beer foam dissipates, the extraction block 34 rises, pushing all the beer into the sampling trough 21. Finally, the rotating column 23 rotates 90 degrees, and the sampling trough 21 returns to a horizontal position, allowing the beer sample in the sampling trough 21 to be discharged back into the tank 1.

[0053] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A refreshing beer fermentation tank with detection and alarm function, comprising a tank body (1); Its features are, A sampling unit (2) for detecting the color of beer and foam in the tank (1) is provided on one side of the tank (1). The sampling unit (2) includes a sampling groove (21), which has a sampling state and a detection state. In the sampling state, the sampling groove (21) is horizontal, and in the detection state, the sampling groove (21) is vertical. A detection unit (3) is provided on the sampling unit (2). The detection unit (3) includes an air supply unit (31) provided on the upper part of the sampling unit (2) and a detection shell (31) provided vertically on the lower part of the sampling unit (2). 33), a detection cavity is formed inside the detection shell (33). The maximum volume of the detection cavity is greater than the volume of the sampling groove (21). A camera (32) is horizontally arranged on one side of the detection cavity. The camera end of the camera (32) points horizontally towards the detection shell (33). The side wall of the detection shell (33) at the front end of the camera (32) is made of transparent material. When the sampling groove (21) is in a horizontal state, the air supply unit (31) and the detection shell (33) are disconnected. When the sampling groove (21) is in a vertical state, the air supply unit (31) is connected to the detection shell (33) through the sampling groove (21). The sampling unit (2) also includes a sampling shell (22) that communicates with the tank (1). The interior of the sampling shell (22) is a cylindrical cavity structure. A rotating column (23) is rotatably arranged inside the sampling shell (22). The axis of the rotating column (23) is collinear with the axis of the sampling shell (22). A first rotary actuator (24) for driving the rotating column (23) to rotate is provided at one end of the rotating column (23). The sampling groove (21) is opened through the side wall of the rotating column (23) along the radial direction of the rotating column (23). An extraction block (34) is vertically movable inside the detection shell (33). A linear driver (35) is vertically arranged at the bottom of the detection shell (33). The output end of the linear driver (35) passes through the bottom of the detection shell (33) and is fixedly connected to the bottom of the extraction block (34). The upper end of the extraction block (34) is an arc-shaped structure, and the diameter of the arc-shaped structure is the same as the diameter of the rotating column (23).

2. A refreshing beer fermentation tank with detection and alarm function according to claim 1, characterized in that, The gas supply unit (31) includes a follower plate (312) that moves vertically above the sampling shell (22). A gap exists between the follower plate (312) and the sampling shell (22), and a bellows (311) is vertically installed within the gap. Both ends of the bellows (311) are fixedly connected to the upper ends of the follower plate (312) and the sampling shell (22), respectively. When the sampling slot (21) is in a horizontal state, the bellows (311), the follower plate (312), and the... The rotating column (23) together form a sealed air-filled cavity. Multiple guide components are evenly arranged around the axis of the bellows (311) outside the bellows (311). The guide components include a guide rod (313) vertically fixed on the top of the follower plate (312) and a guide sleeve (314) vertically fixed on the upper part of the sampling shell (22). The lower part of the guide rod (313) extends into the guide sleeve (314) and slides in cooperation with the guide sleeve (314).

3. A refreshing beer fermentation tank with detection and alarm function according to claim 1, characterized in that, A placement slot (342) is vertically provided on the upper part of the extraction block (34), and an alcohol content detector (36) is provided in the placement slot (342), with the detection end of the alcohol content detector (36) facing vertically upward.

4. A refreshing beer fermentation tank with detection and alarm function according to claim 3, characterized in that, A cleaning unit (37) for cleaning the alcohol content detector (36) is provided on the extraction block (34). The cleaning unit (37) includes a cleaning tank (371) located on one side of the placement tank (342). The cleaning tank (371) is located inside the extraction block (34) and is connected to the detection chamber. During cleaning, the cleaning tank (371) supplies clean water to the detection chamber. A first valve body (372) is provided on the side wall of the detection shell (33). The first valve body (372) is located at the connection between the detection shell (33) and the sampling shell (22). The water used to clean the detection chamber is discharged from the first valve body (372).

5. A refreshing beer fermentation tank with detection and alarm function according to claim 4, characterized in that, The cleaning tank (371) is connected to the placement tank (342). A lifting unit (38) is provided at the bottom of the alcohol meter (36) to drive the alcohol meter (36) to move vertically. When the alcohol meter (36) moves vertically, it has a highest position and a lowest position. When the alcohol meter (36) is at the lowest position, the connection between the cleaning tank (371) and the placement tank (342) is located on the horizontal side of the detection end of the alcohol meter (36). When the alcohol meter (36) is at the highest position, the alcohol meter (36) blocks the connection between the cleaning tank (371) and the placement tank (342).

6. A refreshing beer fermentation tank with detection and alarm function according to claim 1, characterized in that, A sampling tube (4) is provided on the side of the sampling shell (22) facing the tank (1). The sampling shell (22) is connected to the tank (1) through the sampling tube (4). The sampling tube (4) extends from the side of the sampling shell (22) into the tank (1), and the end of the sampling tube (4) located in the tank (1) is vertically downward.

7. A refreshing beer fermentation tank with detection and alarm function according to claim 6, characterized in that, A filter screen (41) is provided on the end of the sampling tube (4) located inside the tank (1).

8. A refreshing beer fermentation tank with detection and alarm function according to claim 6, characterized in that, A vent pipe (5) is provided on the side of the sampling shell (22) away from the sampling tube (4). The end of the vent pipe (5) away from the sampling tube (4) is located on the side wall of the tank body (1). The sampling slot (21) is connected to the tank body (1) through the vent pipe (5). The connection between the vent pipe (5) and the tank body (1) is located above the beer liquid surface inside the tank body (1). An air pump (51) is provided inside the vent pipe (5).

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