A sealed beer fermentation tank

Abstract

This application discloses a sealed beer fermentation tank, belonging to the field of beer production technology. The fermentation tank includes a tank body and an upper cover plate mounted on the tank body. A cover is installed at the upper end of the upper cover plate. A stirring rod is installed inside the tank body, and a defoaming mechanism is installed on the upper cover plate. The defoaming mechanism includes a cylindrical rod that passes through the upper cover plate. A sealing ring is provided at the intersection of the cylindrical rod and the upper cover plate. A limiting ring is fitted around the outside of the cylindrical rod. A servo motor is installed on the upper cover plate, and a lead screw connected to the output end of the servo motor is provided on the upper cover plate. A foam-absorbing plate moves towards the foam area on the liquid surface. A liquid-guiding ring pipe is connected to a flexible hose through a liquid-guiding pipe and a cross-joint. A vacuum pump is activated to generate negative pressure, drawing in the foam liquid through the flexible hose and liquid-guiding pipe. The foam liquid is then filtered through a rigid pipe into a filter tank, and finally, the beer liquid mixed in the foam is discharged back into the tank body through a drain pipe, avoiding waste caused by some beer liquid being carried out when the foam is extracted.

Description

Technical Field

[0001] This application relates to the field of beer production technology, specifically a sealed beer fermentation tank. Background Technology

[0002] Fermentation tanks are devices used for microbial fermentation. Their main body is generally a cylindrical structure made of stainless steel plate, with a volume ranging from 1 m3 to several hundred m3. During design and manufacturing, attention should be paid to a tight and reasonable structure. However, current beer fermentation tanks have some shortcomings. During fermentation, foam appears on the liquid surface inside the tank. Some foam can be eliminated using a foaming device, but some cannot be completely eliminated. Furthermore, this foam is not easily separated from the liquid inside the fermentation tank, thus affecting the observation of the internal condition of the fermentation tank through the sight glass.

[0003] According to Chinese patent publication number CN220812340U, this utility model rotatably installs an inner rod for extracting foam inside an outer ring, while the outer ring can be controlled to move up and down by a screw engaging a threaded sleeve. In this way, the inner rod can be adjusted according to the current liquid level of the beer raw materials, so that the suction port on the surface of the inner rod can suck in the foam, achieving a complete removal effect.

[0004] This solution mainly utilizes a motor to drive a screw to move the outer ring up and down, while simultaneously driving the outer ring to move the inner rod synchronously. However, due to the restriction imposed by the meshing of the second and first bevel gears, the inner rod cannot move at all. Therefore, the outer ring can only remain in the same position, and during the extraction process, some beer liquid will be mixed in, resulting in waste.

[0005] Therefore, this application provides a sealed beer fermentation tank to solve the above-mentioned problems. Utility Model Content

[0006] This application provides a sealed beer fermentation tank, which aims to solve the problem mentioned in the background art that foam mixes with some beer liquid during the extraction process, resulting in waste.

[0007] To achieve the above objectives, this application provides the following technical solution: a beer fermentation sealed tank, including a tank body and an upper cover plate disposed on the tank body, a cover being installed at the upper end of the upper cover plate, a stirring rod being disposed inside the tank body, and a defoaming mechanism being disposed on the upper cover plate;

[0008] The defoaming mechanism includes a cylindrical rod that passes through the upper cover plate. A sealing ring is provided at the point where the cylindrical rod passes through the upper cover plate. A limiting ring is sleeved on the outside of the cylindrical rod. A servo motor is mounted on the upper cover plate. A lead screw connected to the output end of the servo motor is provided on the upper cover plate. A limiting rod is fixedly installed on one end of the upper cover plate opposite to the lead screw. A foam-absorbing plate is provided inside the tank. The lower end of the cylindrical rod is connected to the foam-absorbing plate. The foam-absorbing plate is threadedly connected to the lead screw. The defoaming mechanism absorbs foam by moving the foam-absorbing plate up and down. The sealing ring prevents gas leakage inside the tank. The servo motor provides the power source.

[0009] A limit frame is installed at the upper end of the upper cover plate.

[0010] Preferably, the foam-absorbing plate and the limiting rod are movably sleeved together.

[0011] Preferably, a plurality of foam suction nozzles are equidistantly installed at the lower end of the foam suction plate, and a liquid guiding ring pipe is arranged inside the foam suction plate. The interface of the foam suction nozzle is connected to the liquid guiding ring pipe. Multiple foam suction nozzles expand the foam removal range and improve the foam removal efficiency. The liquid guiding ring pipe allows the foam liquid to be discharged in a concentrated manner, avoiding accumulation in the tank.

[0012] Preferably, a liquid guiding pipe is fixedly installed on the liquid guiding ring pipe, a flexible tube is inserted inside the cylinder rod, and a cross joint is provided at the end of the flexible tube away from the cover, and the liquid guiding pipe is connected to the cross joint.

[0013] Preferably, a vacuum pump is installed at the upper end of the cover, the end of the hose away from the foam suction plate is connected to the inlet of the vacuum pump, a rigid pipe is installed at the outlet of the vacuum pump, a filtrate tank connected to the rigid pipe is installed on the cover, and a drain pipe penetrating the upper cover plate is installed at the lower end of the filtrate tank.

[0014] Preferably, the interior of the filtrate tank is provided with multiple layers of filter cloth.

[0015] When foam is observed inside the fermentation tank through the viewing frame, the servo motor drives the lead screw to rotate. The foam suction plate, due to its threaded connection with the lead screw and the constraint of the limiting rod, moves towards the foam area on the liquid surface. The liquid guide ring is connected to the hose through the liquid guide pipe and cross connector. The vacuum pump is activated to generate negative pressure, and the foam liquid is sucked up through the hose and liquid guide pipe, and filtered through the rigid pipe into the filter tank. Finally, the beer liquid mixed with the foam is discharged into the tank through the drain pipe, avoiding waste caused by some beer liquid being carried out when the foam is extracted. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a sealed beer fermentation tank;

[0017] Figure 2 A schematic diagram of the cross-sectional structure of the cover;

[0018] Figure 3 This is a structural schematic diagram of a cross-sectional view of the tank body.

[0019] Figure 4 This is a schematic diagram of the foam absorption plate.

[0020] Figure 5 This is a schematic diagram of the cross-section of the foam absorption plate.

[0021] In the picture:

[0022] 1. Tank body; 2. Top cover plate; 3. Cover body; 4. Cylinder rod; 5. Servo motor; 51. Lead screw; 52. Limiting rod; 53. Foam suction plate; 531. Foam suction nozzle; 532. Liquid guide ring pipe; 533. Liquid guide pipe; 54. Sealing ring; 55. Limiting frame; 56. Limiting ring; 57. Flexible hose; 6. Vacuum pump; 61. Rigid pipe; 62. Filter tank; 63. Drain pipe; 7. Stirring rod. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This embodiment provides a sealed beer fermentation tank, such as... Figure 1-5 As shown, the fermentation sealed tank includes a tank body 1 and an upper cover plate 2 disposed on the tank body 1. A cover 3 is installed on the upper end of the upper cover plate 2. A stirring rod 7 is disposed inside the tank body 1. A defoaming mechanism is disposed on the upper cover plate 2.

[0025] The defogging mechanism includes a cylindrical rod 4 that passes through the upper cover plate 2. A sealing ring 54 is provided at the intersection of the cylindrical rod 4 and the upper cover plate 2. A limiting ring 56 is sleeved on the outside of the cylindrical rod 4. A servo motor 5 is installed on the upper cover plate 2. A lead screw 51 connected to the output end of the servo motor 5 is provided on the upper cover plate 2. A limiting rod 52 is fixedly installed on one end of the upper cover plate 2 opposite to the lead screw 51. A foam suction plate 53 is provided inside the tank body 1. The lower end of the cylindrical rod 4 is connected to the foam suction plate 53. The foam suction plate 53 is threadedly connected to the lead screw 51.

[0026] A limit bracket 55 is installed on the upper end of the upper cover plate 2.

[0027] Specifically, the servo motor 5 drives the lead screw 51 to rotate. The foam suction plate 53, due to its threaded connection with the lead screw 51 and the limitation of the limiting rod 52, can only move up and down along the lead screw 51. The position of the foam suction plate 53 can be automatically adjusted to adapt to the foam height at different fermentation stages. The cylinder rod 4 moves with the foam suction plate 53. The sealing ring 54 ensures the seal at the intersection of the tank body 1 and the upper cover plate 2. The sealing ring 54 ensures the sealing of the fermentation environment and maintains the pressure and microbial fermentation conditions inside the tank. The limiting ring 56 and the limiting frame 55 play the role of positioning and limiting the maximum movement distance. The limiting rod 52 is a round rod with a diameter of 20mm. The foam suction plate 53 has matching holes to ensure that the foam suction plate 53 slides linearly along the limiting rod 52. The external reference comparison scheme of the tank body 1 is also equipped with a viewing frame.

[0028] The foam suction plate 53 and the limiting rod 52 are movably fitted together.

[0029] More specifically, the foam suction plate 53 slides on the limiting rod 52. The limiting rod 52 restricts the movement trajectory of the foam suction plate 53 to prevent it from rotating and ensures that it moves up and down in the vertical direction. The limiting rod 52 has a circular cross-section. The fit clearance between the foam suction plate 53 and the limiting rod 52 is 0.5mm. The fit is H7 / g6 tolerance to ensure smooth sliding and no obvious shaking.

[0030] Several foam suction nozzles 531 are installed at equal intervals at the lower end of the foam suction plate 53. A liquid guiding ring tube 532 is arranged inside the foam suction plate 53. The interface of the foam suction nozzle 531 is connected to the liquid guiding ring tube 532.

[0031] Furthermore, the foam suction nozzle 531 sucks up the foam produced by beer fermentation, and the foam is collected through the liquid guiding ring tube 532. The foam suction nozzle 531 has a flared structure and is made of food-grade silicone. The liquid guiding ring tube 532 is made of 304 stainless steel with an inner diameter of 20mm to ensure smooth passage of foam liquid.

[0032] A liquid guide tube 533 is fixedly installed on the liquid guide ring tube 532. A flexible tube 57 is inserted inside the cylinder rod 4. A cross joint is provided at the end of the flexible tube 57 away from the cover 3. The liquid guide tube 533 is connected to the cross joint.

[0033] It should be noted that the liquid guide ring pipe 532 is connected to the hose 57 via the liquid guide pipe 533 and the cross connector to discharge the foam liquid out of the tank 1. The liquid guide pipe 533 and the liquid guide ring pipe 532 are connected by welding. The hose 57 is a food-grade silicone tube, and the cross connector is made of stainless steel. The hose 57 has a reserved length to accommodate the unrestricted up and down movement of the foam suction plate 53.

[0034] A vacuum pump 6 is installed at the upper end of the cover 3. The end of the hose 57 away from the foam suction plate 53 is connected to the inlet of the vacuum pump 6. A rigid pipe 61 is installed at the outlet of the vacuum pump 6. A filter tank 62 connected to the rigid pipe 61 is installed on the cover 3. A drain pipe 63 that penetrates the upper cover plate 2 is installed at the lower end of the filter tank 62.

[0035] It is worth mentioning that the vacuum pump 6 generates negative pressure, which draws in the foam liquid through the hose 57, the liquid guide tube 533, etc., and then enters the filter tank 62 through the rigid tube 61 for filtration. Finally, it is discharged through the drain pipe 63. This process efficiently draws in the foam liquid, and the filter tank 62 purifies the liquid, preventing impurities from entering the subsequent system and protecting the equipment.

[0036] The interior of the filtrate tank 62 is equipped with multiple layers of filter cloth.

[0037] The filter cloth inside the filter tank 62 intercepts solid impurities in the foam liquid, purifies the foam liquid, and improves the purity of the discharged liquid. The beer liquid mixed in the foam is then discharged into the tank 1 through the drain pipe 63. The filter cloth is made of polypropylene and has 3 layers. It is replaced regularly to ensure the filtration effect.

[0038] When in use, if foam is observed inside the tank 1 through the viewing frame, the servo motor 5 is started to drive the lead screw 51 to rotate. The foam suction plate 53 moves towards the foam area on the liquid surface because it is threadedly connected to the lead screw 51 and restricted by the limiting rod 52. The liquid guiding ring pipe 532 is connected to the hose 57 through the liquid guiding pipe 533 and the cross connector. The vacuum pump 6 is started to generate negative pressure, and the foam liquid is sucked up through the hose 57, the liquid guiding pipe 533, etc., and enters the filter tank 62 through the rigid pipe 61 for filtration. Finally, the beer liquid mixed in the foam is discharged into the tank 1 through the drain pipe 63.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A beer fermentation sealed tank, comprising a tank body (1) and an upper cover plate (2) disposed on the tank body (1), wherein a cover (3) is installed on the upper end of the upper cover plate (2), a stirring rod (7) is disposed inside the tank body (1), and a defoaming mechanism is disposed on the upper cover plate (2); Its features are: The defogging mechanism includes a cylindrical rod (4) that passes through the upper cover plate (2). A sealing ring (54) is provided at the point where the cylindrical rod (4) passes through the upper cover plate (2). A limiting ring (56) is sleeved on the outside of the cylindrical rod (4). A servo motor (5) is installed on the upper cover plate (2). A lead screw (51) connected to the output end of the servo motor (5) is provided on the upper cover plate (2). A limiting rod (52) is fixedly installed on one end of the upper cover plate (2) relative to the lead screw (51). A foam-absorbing plate (53) is provided inside the tank body (1). The lower end of the cylindrical rod (4) is connected to the foam-absorbing plate (53). The foam-absorbing plate (53) is threadedly connected to the lead screw (51). A limit frame (55) is installed at the upper end of the upper cover plate (2).

2. The beer fermentation sealed tank according to claim 1, characterized in that: The foam suction plate (53) and the limiting rod (52) are movably sleeved together.

3. The beer fermentation sealed tank according to claim 2, characterized in that: The lower end of the foam suction plate (53) is equipped with a plurality of foam suction nozzles (531) at equal intervals. The interior of the foam suction plate (53) is provided with a liquid guiding ring pipe (532), and the interface of the foam suction nozzle (531) is connected to the liquid guiding ring pipe (532).

4. The beer fermentation sealed tank according to claim 3, characterized in that: A liquid guide tube (533) is fixedly installed on the liquid guide ring tube (532). A flexible tube (57) is inserted inside the cylinder rod (4). A cross joint is provided at the end of the flexible tube (57) away from the cover (3). The liquid guide tube (533) is connected to the cross joint.

5. The beer fermentation sealed tank according to claim 4, characterized in that: A vacuum pump (6) is installed at the upper end of the cover (3). The end of the hose (57) away from the foam suction plate (53) is connected to the inlet of the vacuum pump (6). A rigid pipe (61) is installed at the outlet of the vacuum pump (6). A filter tank (62) connected to the rigid pipe (61) is installed on the cover (3). A drain pipe (63) penetrating the upper cover plate (2) is installed at the lower end of the filter tank (62).

6. The beer fermentation sealed tank according to claim 5, characterized in that: The interior of the filtrate tank (62) is provided with multiple layers of filter cloth.

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