Brewing fermentation tank

Abstract

The utility model provides a kind of wine brewing fermentation tank, belong to wine brewing equipment technical field, comprising: pool body;Pool body is formed by inner shell and shell and has double-layer structure with internal cavity, internal cavity is heat exchange cavity;Heat exchange cavity is divided into bottom chamber and side wall chamber by partition plate;Bottom chamber and side wall chamber are respectively provided with inlet pipe and outlet pipe;Each inlet pipe is provided with regulating valve;The sidewall and bottom of inner shell are uniformly provided with multiple temperature sensors;The side of pool body is provided with digital display controller, all regulating valve and temperature sensor are electrically connected with digital display controller;The top of pool body is provided with covering mechanism, the inside of pool body is provided with combined stirring mechanism, and the driving part of combined stirring mechanism is arranged on the top of covering mechanism.The heat exchange cavity of the fermentation tank cooperates with the combined stirring mechanism to achieve uniform temperature control of the fermentation tank, prevent the fermentation temperature from being out of sync, improve the accuracy and timeliness of temperature control in the fermentation tank, and improve the taste and quality of the brewed wine.

Description

Technical Field

[0001] This utility model relates to the field of brewing equipment technology, and in particular to a brewing fermentation tank. Background Technology

[0002] In winemaking, fermentation tanks are the primary fermentation containers. The main raw material used in baijiu (Chinese liquor) production is sorghum. After steaming, gelatinization, and saccharification, the raw material mixture enters the fermentation tank for temperature-controlled fermentation. During fermentation, a suitable temperature allows microorganisms to multiply rapidly, converting starch into alcohol. However, relying solely on the natural heat generated by microbial fermentation is insufficient for the demands of winemaking. To improve the quality and taste of the liquor, temperature control during fermentation emphasizes a "slow rise at the beginning, a strong rise in the middle, and a slow fall at the end." Therefore, strict temperature control within the fermentation tank is crucial. Maintaining different temperatures at different stages of fermentation results in a better-tasting liquor and allows for a more diverse flavor profile to cater to a wider range of consumers. However, current temperature control equipment in fermentation tanks is typically quite simple, usually involving inserting a thermometer and observing its changes to monitor the temperature inside the tank. This observation method is insufficient in terms of the accuracy and timeliness of temperature control within the fermentation tank. If the temperature within the fermentation tank is uneven or the fermentation temperature rise is not good, the temperatures inside and outside the fermentation tank cannot be kept synchronized, resulting in inaccurate temperature control. This will severely restrict the reproduction of microorganisms, making it impossible to effectively control the quality of the brewed wine, affecting the taste of the brewed wine, and also affecting the quality of the raw wine in the later stages. Utility Model Content

[0003] This invention provides a brewing fermentation tank to solve the problem that the inaccuracy and timeliness of temperature control in existing fermentation tanks affect the taste and quality of the brewed raw wine.

[0004] This utility model provides a brewing fermentation tank, comprising: a tank body, the tank body including a bottom wall and side walls, the bottom wall being rectangular; the tank body forming a sealed double-layer structure with an internal cavity formed by an inner shell and an outer shell, the internal cavity being a heat exchange chamber; the heat exchange chamber being divided into an independent bottom chamber and a side wall chamber by a partition plate; each bottom chamber and side wall chamber being respectively provided with an inlet pipe and an outlet pipe, the inlet pipes being connected in parallel to a medium main pipe, and the outlet pipes being connected in parallel; each inlet pipe being provided with a regulating valve; the medium main pipe being connected to a hot water pipe network and a cold water pipe network respectively, and a hot water valve and a cold water valve being respectively provided on the corresponding connecting pipes; multiple temperature sensors being evenly arranged on the side walls and bottom of the inner shell; a digital display controller being provided on one side of the tank body, the hot water valve, the cold water valve, all regulating valves and temperature sensors being electrically connected to the digital display controller; a covering mechanism being provided on the top of the tank body, and a combined stirring mechanism being provided inside the tank body, the driving component of the combined stirring mechanism being located on top of the covering mechanism.

[0005] Preferably, the sidewall chamber is divided into at least two independent heat exchange chambers by a partition; each heat exchange chamber is provided with a parallel-connected inlet pipe and a parallel-connected outlet pipe; the inlet pipe of each heat exchange chamber is located below the corresponding outlet pipe; each heat exchange chamber is provided with multiple horizontal, notched U-shaped plate frames at different heights to cut the heat exchange chamber into a multi-layered folded structure, the notches of adjacent U-shaped plate frames are located in opposite positions, so that the heat exchange medium flows in a U-shape in the horizontal direction and in an S-shape in the vertical direction in the heat exchange chamber.

[0006] Preferably, the covering mechanism includes a sealing cover and a sealing plug plate at its bottom. The length and width of the sealing plug plate are the same as the length and width of the pool body, and a sealing rubber strip is embedded on the side of the sealing plug plate. A vent pipe is connected to the top of the sealing cover, and vent holes are opened on the sealing cover and the sealing plug plate. The vent holes are used to connect the inside of the pool body and the vent pipe.

[0007] Preferably, the driving component of the combined stirring mechanism includes a motor, which is located on top of the sealing cover; the combined stirring mechanism also includes a main rotating shaft and a secondary rotating shaft; the top of the main rotating shaft passes through the sealing cover and the sealing plug plate and is fixedly connected to the output end of the motor, and the top of the secondary rotating shaft also passes through the sealing cover and the sealing plug plate and extends to the outside of the sealing cover; both the main rotating shaft and the secondary rotating shaft located outside the sealing cover are fitted with transmission wheels, and the two transmission wheels are connected by a transmission belt; both the main rotating shaft and the secondary rotating shaft are rotatably connected to the sealing cover and the sealing plug plate.

[0008] Preferably, a spiral blade is installed on the main shaft, and multiple stirring paddles are installed at equal intervals on the secondary shaft.

[0009] Preferably, the main rotating shaft is equipped with at least two sets of spiral blades, upper and lower, with the spiral directions of the two sets of spiral blades being opposite.

[0010] Preferably, multiple temperature sensors on the sidewall of the inner shell are staggered at different height positions.

[0011] Preferably, a sampling tube is installed on one side of the bottom of the pool, the sampling tube penetrates the pool and extends to its outside, the sampling tube is equipped with a sampling valve, and a suitable filter screen is installed at the inlet of the sampling tube.

[0012] The brewing fermentation tank provided by this utility model can monitor the temperature at different locations within the fermentation tank in a timely manner through multiple temperature detections at multiple locations, thereby improving the accuracy and timeliness of temperature control within the fermentation tank. The heat exchange chamber can provide heat exchange media with different flow rates to provide different heat exchange effects, making the temperature distribution inside the fermentation tank more uniform, controllable, and adjustable. Combined with the mixing and stirring action of the combined stirring mechanism, it can further achieve uniform temperature control within the fermentation tank, prevent asynchronous fermentation temperatures, improve the accuracy and timeliness of temperature control within the fermentation tank, enhance the taste and quality of the brewed wine, and achieve quality control of the wine.

[0013] The multiple heat exchange chambers in this fermentation tank enable more regular flow of the heat exchange medium. By adjusting the flow rate of the heat exchange medium in different chambers, the temperature of the fermentation material at different heights can be adjusted. The spiral blades on the main shaft and the stirring paddles on the secondary shaft provide stirring forces to the material in different directions, allowing the material to move up, down, left, and right within the fermentation tank, enhancing the mixing effect and thus providing better heat exchange effect and higher heat exchange efficiency. This achieves uniform temperature control and temperature synchronization in the fermentation tank. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a brewing fermentation tank provided in one embodiment of the present invention; Figure 2 A schematic diagram illustrating the structure and installation of the partition and the U-shaped frame in the heating chamber according to an embodiment of this utility model; Figure 3 This is a schematic diagram of the combined stirring mechanism provided in one embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Pool body; 2. Bottom chamber; 3. Side wall chamber; 4. Inlet pipe; 5. Outlet pipe; 6. Sampling pipe; 31. U-shaped frame; 32. Baffle; 41. Regulating valve; 42. Hot water valve; 43. Cold water valve; 61. Sampling valve; 71. Sealing cap; 72. Sealing plug; 73. Vent pipe; 81. Motor; 82. Main shaft; 83. Secondary shaft; 84. Drive wheel; 85. Drive belt; 86. Spiral blade; 87. Agitator. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are also within the protection scope of this utility model.

[0018] like Figure 1 This utility model discloses a brewing fermentation tank, comprising: a tank body 1, which includes a bottom wall and side walls, the bottom wall being rectangular; the tank body 1 is a sealed double-layer structure with an internal cavity formed by an inner shell and an outer shell, the internal cavity being a heat exchange chamber; the heat exchange chamber is divided by a partition plate into an independent bottom chamber 2 and a side wall chamber 3; both the bottom chamber 2 and the side wall chamber 3 are respectively provided with an inlet pipe 4 and an outlet pipe 5, the inlet pipes 4 being connected in parallel to the main medium pipe, and the outlet pipes 5 being connected in parallel; each inlet pipe 4 is provided with a regulating valve 4. 1; The main medium pipe is connected to the hot water network and the cold water network respectively, and a hot water valve 42 and a cold water valve 43 are respectively installed on the corresponding connecting pipes; Multiple temperature sensors are evenly arranged on the side wall and bottom of the inner shell; A digital display controller is installed on one side of the tank body 1, and the hot water valve 42, the cold water valve 43, all regulating valves 41 and the temperature sensors are electrically connected to the digital display controller; A covering mechanism is installed on the top of the tank body 1, and a combined stirring mechanism is installed inside the tank body 1, with the driving component of the combined stirring mechanism located on the top of the covering mechanism.

[0019] The fermentation tank is equipped with heat exchange chambers at its bottom and sides, which are independent of each other. Even with unequal areas, different flow rates of heat exchange media can be provided to achieve varying heat exchange effects, resulting in a more uniform, controllable, and adjustable temperature distribution within the fermentation tank. The preferred heat exchange media in the chambers are hot and cold water. When the temperature sensor indicates a low temperature within the fermentation tank, hot water can be introduced to raise the temperature. Conversely, when the temperature is high, cold water is switched to lower the temperature. This allows for comprehensive temperature adjustment and control within the fermentation tank, leading to better fermentation results. Furthermore, the combination of the heat exchange chambers and a stirring mechanism further ensures uniform temperature control within the fermentation tank, preventing asynchronous fermentation temperatures and improving the accuracy and timeliness of temperature control, ultimately enhancing the taste and quality of the brewed wine.

[0020] A regulating valve 41 (not shown in the figure) is installed on the inlet pipe 4 of both the bottom chamber 2 and the side wall chamber 3. The regulating valve 41 can regulate the flow rate of the heat exchange medium entering the heat exchange chamber, making the control operation more convenient. After the mash is loaded and fermentation begins, the temperature sensor transmits the temperature data at different locations to the digital display controller. The digital display controller automatically analyzes the data according to the set temperature and switches the hot water valve 42 and the cold water valve 43 on and off. At the same time, it starts and adjusts the opening of the regulating valve 41, so that the heat exchange medium continuously circulates and exchanges heat in the heat exchange chamber. After the required temperature is reached, the regulating valve 41 is closed, so that the fermentation tank can maintain and meet the required temperature conditions at all times. The digital display controller and its control analysis program are existing technologies and will not be described in detail here.

[0021] like Figure 1 and Figure 2 In one embodiment, the sidewall chamber 3 is divided by a partition 32 into at least two independent heat exchange chambers; each heat exchange chamber is provided with a parallel-connected inlet pipe 4 and a parallel-connected outlet pipe 5; the inlet pipe 4 of each heat exchange chamber is located below the corresponding outlet pipe 5; each heat exchange chamber is provided with multiple horizontal, notched U-shaped plate frames 31 at different heights to cut the heat exchange chamber into a multi-layer folded structure, the notches of adjacent U-shaped plate frames 31 are located in opposite positions, so that the heat exchange medium flows in a U-shape in the horizontal direction and in an S-shape in the vertical direction in the heat exchange chamber.

[0022] The temperature at different heights in the fermentation tank may vary. To further regulate the temperature, the sidewall chamber 3 can be divided into multiple heat exchange chambers. By adjusting the flow rate of the heat exchange medium in each chamber, the temperature of the fermentation material at different heights can be adjusted, thereby achieving uniform temperature control and temperature synchronization in the fermentation tank. Since the heat exchange chambers are U-shaped structures formed around the sidewalls, using U-shaped plates and frames 31 to divide the heat exchange chambers creates regular flow channels for the heat exchange medium to circulate. Compared to undivided heat exchange chambers, the heat exchange medium flows more regularly and can more comprehensively fill the entire heat exchange chamber, thus providing better heat exchange effects and higher heat exchange efficiency.

[0023] like Figure 1 and Figure 3 In one embodiment, the covering mechanism includes a sealing cover 71 and a sealing plug plate 72 at its bottom. The length and width of the sealing plug plate 72 are the same as the length and width of the tank body 1, and a sealing rubber strip is embedded on the side of the sealing plug plate 72. A vent pipe 73 is connected to the top of the sealing cover 71, and vent holes are provided on the sealing cover 71 and the sealing plug plate 72. The vent holes are used to connect the inside of the tank body 1 and the vent pipe 73. Preferably, the length and width of the sealing cover 71 are not less than the length and width of the sealing plug plate 72. The sealing plug plate 72 and the sealing rubber strip can make the sealing cover 71 and the tank body 1 seal together, ensuring the airtightness of the fermentation tank. At the same time, in order to avoid the pressure rise in the fermentation tank due to temperature changes, the pressure can be released through the vent holes and the vent pipe 73, or when discharging the material after fermentation, the air pressure inside and outside the fermentation tank can be balanced through the vent holes and the vent pipe 73 before discharging the material.

[0024] like Figure 1 and Figure 3 In one embodiment, the driving component of the combined stirring mechanism includes a motor 81, which is disposed on the top of the sealing cover 71. The combined stirring mechanism also includes a main rotating shaft 82 and a secondary rotating shaft 83. The top of the main rotating shaft 82 passes through the sealing cover 71 and the sealing plug plate 72 and is fixedly connected to the output end of the motor 81. The top of the secondary rotating shaft 83 also passes through the sealing cover 71 and the sealing plug plate 72 and extends to the outside of the sealing cover 71. Both the main rotating shaft 82 and the secondary rotating shaft 83 located outside the sealing cover 71 are fitted with transmission wheels 84, and the two transmission wheels 84 are connected by a transmission belt 85. Both the main rotating shaft 82 and the secondary rotating shaft 83 are rotatably connected to the sealing cover 71 and the sealing plug plate 72.

[0025] The motor 81 drives the main shaft 82 to rotate, and simultaneously, the transmission belt 85 and transmission wheel 84 drive the auxiliary shaft 83 to rotate, so that the main and auxiliary shafts rotate synchronously, thereby driving the combined mixing mechanism to rotate and mix the materials. A speed reducer can also be installed between the motor 81 and the transmission wheel 84 of the main shaft 82 to reduce the rotation speed of the main and auxiliary shafts and prevent the materials from being mixed too vigorously and generating air bubbles. Similarly, protective covers can be installed on the motor 81, transmission wheel 84, transmission belt 85, etc., to provide dust and water protection, etc. These are all existing technologies and will not be described in detail here.

[0026] In one embodiment, a helical blade 86 is mounted on the main rotating shaft 82, and multiple stirring paddles 87 are mounted at equal intervals on the auxiliary rotating shaft 83. The helical blades 86 on the main rotating shaft 82 and the stirring paddles 87 on the auxiliary rotating shaft 83 can provide stirring forces to the material in different directions, allowing the material to move up, down, left, and right within the fermentation tank, enhancing the mixing effect, improving heat exchange, and increasing the temperature uniformity within the fermentation tank. The structure of the stirring paddles 87 can adopt a structure commonly used in the prior art and is not limited here, but it should be noted that the helical blades 86 and the stirring paddles 87 must not collide during rotation.

[0027] In one embodiment, the main rotating shaft 82 is equipped with at least two sets of spiral blades 86, upper and lower, with opposite spiral directions. By setting the spiral directions of the spiral blades 86 opposite, when the main rotating shaft 82 rotates, the upper and lower sets of spiral blades 86 will cause the material to move in opposite directions under the action of two opposing forces. Combined with the parallel dispersing action of the stirring paddle 87, the material can be mixed in both the left-right and up-down directions, resulting in a more ideal and thorough mixing effect.

[0028] In one embodiment, multiple temperature sensors on the sidewalls of the inner shell are staggered at different heights. Positioning the temperature sensors at different heights allows for simultaneous temperature detection of materials at various locations, thereby improving the accuracy and timeliness of temperature control within the fermentation tank. The temperature sensors can be wired or wireless. The number and specific installation locations of the temperature sensors can be selected and adjusted by technicians based on actual site conditions.

[0029] like Figure 1In one embodiment, a sampling tube 6 is installed on one side of the bottom of the tank 1. The sampling tube 6 penetrates the tank 1 and extends to its outer side. A sampling valve 61 is provided on the sampling tube 6, and a suitable filter screen is provided at the inlet of the sampling tube 6. The sampling tube 6 facilitates the extraction of liquid materials from the fermentation tank for analysis and judgment of whether the fermentation process is normal. The filter screen can filter solid materials to prevent them from clogging the sampling tube 6. For example, if the sample has a predominantly astringent taste, a moderate sour taste, and no sweetness, this indicates that the ingredient ratio is appropriate, the operation is meticulous, and the saccharification and fermentation are good. This results in high-quality wine with a high yield. If the sample has a sour, sweet, bitter, or rancid taste, it indicates that the fermentation is abnormal.

[0030] It should be noted that arrows not marked with reference numerals indicate the flow direction of gas-liquid mixtures, gas phases, or liquid phases. Components not shown in the accompanying drawings may be installed and configured according to conventions in the art, and no special restrictions are imposed here.

[0031] In the aforementioned brewing fermentation tank, during operation, the fermentation material is fed into the tank body 1, and then the sealing cover 71 and sealing plug 72 are placed over the tank body 1, forming a sealed connection with the side wall of the tank body 1. Fermentation begins when the motor 81 is turned on, driving the main shaft 82 to rotate. Simultaneously, the transmission belt 85 and transmission wheel 84 drive the auxiliary shaft 83 to rotate, causing the main and auxiliary shafts to rotate synchronously. This, in turn, drives the spiral blades 86 on the main shaft 82 and the stirring paddle 87 on the auxiliary shaft 83 to rotate. The two sets of spiral blades 86 on the main shaft 82 cause the material to move in opposite directions under the action of two opposing forces. Combined with the parallel dispersing action of the stirring paddle 87, this achieves mixing of the material in both the left-right and up-down directions, resulting in a more ideal and thorough mixing effect.

[0032] Temperature sensors at different heights transmit temperature data to a digital display controller. The controller automatically analyzes the data based on the set temperature and switches the hot water valve 42 and cold water valve 43 on and off. Simultaneously, it activates and adjusts the opening of the regulating valve 41, ensuring continuous flow and heat exchange of the heat exchange medium within the heat exchange chamber. (When the temperature sensor indicates a low temperature in the fermentation tank, hot water is introduced into the heat exchange chamber to raise the temperature; when the temperature is high, cold water is switched to lower the temperature.) Once the desired temperature is reached, the regulating valve 41 is closed, thus maintaining and meeting the required temperature conditions within the fermentation tank at all times. The bottom chamber 2 and the side wall chamber 3, due to their unequal areas, can provide heat exchange media with different flow rates to provide different heat exchange effects. The multiple heat exchange chambers in the side wall chamber 3 can also be adjusted to different flow rates to make the material reach the optimal temperature. The heat exchange media flows along the flow channels divided by the U-shaped plate frame 31 and can fill the entire side wall chamber 3, thereby providing better heat exchange effect and higher heat exchange efficiency, making the temperature distribution inside the fermentation tank more uniform, controllable and adjustable.

[0033] After fermentation for a period of time, liquid material can be taken from the fermentation tank through sampling tube 6 for analysis and to determine whether the fermentation process is normal. When discharging the material at the end of fermentation, the air pressure inside and outside the fermentation tank can be balanced through the vent and vent pipe 73 before discharging.

[0034] It should be noted that the detailed structure of some devices in this utility model is not described in detail, but belongs to the prior art known to those skilled in the art, and therefore will not be described again here. In addition, the parts of this device not described are the same as or can be implemented using existing technology.

[0035] It should be noted that pressure sensors, flow meters, or temperature sensors are installed on the conveying pipelines inside the system between different units, devices, or equipment. Various valves, such as pressure relief valves, pressure regulating valves, and safety valves, are also installed to regulate and stabilize the pressure of the entire system.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A brewing fermentation tank, characterized in that, include: A pool body, the pool body including a bottom wall and side walls, the bottom wall being rectangular; The pool body is a sealed double-layer structure with an internal cavity formed by an inner shell and an outer shell. The internal cavity is a heat exchange chamber. The heat exchange chamber is divided into an independent bottom chamber and a side wall chamber by a partition plate. Each bottom chamber and each side wall chamber is provided with an inlet pipe and an outlet pipe. The inlet pipes are connected in parallel to the main medium pipe, and the outlet pipes are connected in parallel. Each inlet pipe is provided with a regulating valve. The main medium pipe is connected to the hot water pipe network and the cold water pipe network, and hot water valves and cold water valves are provided on the corresponding connecting pipes. Multiple temperature sensors are evenly arranged on the side wall and bottom of the inner shell. A digital display controller is provided on one side of the pool body. The hot water valve, the cold water valve, all the regulating valves, and the temperature sensors are all electrically connected to the digital display controller. A covering mechanism is provided on the top of the pool body. A combined stirring mechanism is provided inside the pool body, and the driving component of the combined stirring mechanism is located on the top of the covering mechanism.

2. The brewing fermentation tank according to claim 1, characterized in that, The sidewall chamber is divided into at least two independent heat exchange chambers by a partition; each heat exchange chamber is provided with an inlet pipe and an outlet pipe connected in parallel; the inlet pipe of each heat exchange chamber is located below the corresponding outlet pipe. Each heat exchange chamber has multiple horizontal, notched, U-shaped plate frames at different heights, cutting the heat exchange chamber into a multi-layered folded structure. The notches of adjacent U-shaped plate frames are set in opposite positions, so that the heat exchange medium flows in a U-shape in the horizontal direction and in an S-shape in the vertical direction in the heat exchange chamber.

3. The brewing fermentation tank according to claim 1, characterized in that, The covering mechanism includes a sealing cover and a sealing plug plate at its bottom. The length and width of the sealing plug plate are the same as the length and width of the pool body, and a sealing rubber strip is embedded on the side of the sealing plug plate. A vent pipe is connected to the top of the sealing cover, and vent holes are opened on the sealing cover and the sealing plug plate. The vent holes are used to connect the inside of the pool body and the vent pipe.

4. The brewing fermentation tank according to claim 3, characterized in that, The driving component of the combined stirring mechanism includes a motor, which is disposed on the top of the sealing cover; the combined stirring mechanism also includes a main rotating shaft and a secondary rotating shaft; The top of the main shaft passes through the sealing cover and the sealing plug plate and is fixedly connected to the output end of the motor. The top of the auxiliary shaft also passes through the sealing cover and the sealing plug plate and extends to the outside of the sealing cover. Both the main shaft and the auxiliary shaft located outside the sealing cover are fitted with transmission wheels, and the two transmission wheels are connected by a transmission belt. Both the main shaft and the auxiliary shaft are rotatably connected to the sealing cover and the sealing plug plate.

5. The brewing fermentation tank according to claim 4, characterized in that, The main shaft is equipped with spiral blades, and the secondary shaft is equipped with multiple stirring paddles that are equidistantly and alternately installed.

6. The brewing fermentation tank according to claim 5, characterized in that, The main rotating shaft is equipped with at least two sets of helical blades, upper and lower, with the helical directions of the two sets of helical blades being opposite.

7. The brewing fermentation tank according to claim 1, characterized in that, The multiple temperature sensors on the side wall of the inner shell are staggered at different height positions.

8. The brewing fermentation tank according to any one of claims 1-7, characterized in that, A sampling tube is installed on one side of the bottom of the pool. The sampling tube passes through the pool and extends to its outside. A sampling valve is provided on the sampling tube, and a suitable filter screen is provided at the inlet of the sampling tube.

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