Temperature control equipment for white spirit fermentation

By introducing a temperature control mechanism consisting of a semiconductor heating rod and a cooling plate into the liquor fermentation equipment, combined with a PLC controller and temperature sensor, the problem of reduced heat transfer efficiency caused by scaling on the coils was solved, thus achieving stability and high efficiency in the fermentation process.

CN224212628UActive Publication Date: 2026-05-08CHENGDU SHUZHIYUAN WINE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU SHUZHIYUAN WINE
Filing Date
2025-05-29
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In existing baijiu fermentation temperature control equipment, the coils are prone to scale or grease buildup, which reduces heat transfer efficiency and requires regular chemical cleaning, increasing downtime.

Method used

The temperature control mechanism, which combines a semiconductor heating rod and a semiconductor cooling plate, along with a PLC controller and a temperature sensor, enables precise temperature regulation and stirring within the fermenter, avoiding the shortcomings of traditional coil systems.

Benefits of technology

It improves the accuracy and stability of temperature control inside the fermenter, reduces downtime, and enhances fermentation efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses temperature control equipment for white spirit fermentation, which belongs to the technical field of white spirit fermentation and is characterized by comprising a supporting shell, a temperature control mechanism is fixedly connected to the inner side of the supporting shell, a fermentation tank body is fixedly connected to the inner wall of the temperature control mechanism, and a control mechanism is mounted on the left side of the supporting shell. A semiconductor heating rod and a semiconductor refrigeration plate are combined in the temperature control mechanism, the semiconductor heating rod can heat the top of the fermentation tank body in a targeted mode, the semiconductor refrigeration plate can refrigerate the bottom of the fermentation tank body, and work of the semiconductor heating rod and the semiconductor refrigeration plate can be controlled through the control mechanism; the three temperature sensors in the control mechanism are respectively mounted at different height positions in the fermentation tank body, so that the temperature change conditions of upper, middle and lower different layers in the fermentation tank can be monitored in real time, comprehensive and accurate temperature data can be obtained, and reliable basis is provided for temperature control; and the PLC is connected with the temperature sensor, the semiconductor heating rod, the semiconductor refrigeration plate and the servo motor.
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Description

Technical Field

[0001] This utility model relates to the field of liquor fermentation technology, and in particular to a temperature control device for liquor fermentation. Background Technology

[0002] Baijiu, a traditional Chinese distilled spirit, is loved by consumers for its unique flavor and quality. The fermentation process of baijiu is a complex microbial metabolic process, and temperature is one of the key factors affecting the fermentation process. A suitable temperature can provide a good environment for the growth, reproduction and metabolism of microorganisms, promote the saccharification of starch, the fermentation of alcohol and the generation of flavor substances, thereby ensuring the quality and yield of baijiu.

[0003] To address the above problems, existing patents provide solutions. However, most existing temperature control devices use coils to heat or cool the fermenter. After long-term use, scale or grease easily forms on the inner wall of the coils, resulting in reduced heat transfer efficiency and requiring regular chemical cleaning, which increases downtime.

[0004] Therefore, a temperature control device for baijiu fermentation is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a temperature control device for baijiu fermentation, which can solve the problem that most existing baijiu fermentation temperature control devices use coils to heat or cool the fermentation tank, which leads to scale or grease buildup on the inner wall of the coils after long-term use of cooling water or heat transfer oil, resulting in reduced heat transfer efficiency and the need for regular chemical cleaning, thus increasing downtime.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a temperature control device for baijiu fermentation, comprising a support shell, a temperature control mechanism fixedly connected to the inner side of the support shell, a fermentation tank body fixedly connected to the inner wall of the temperature control mechanism, and a control mechanism installed on the left side of the support shell;

[0007] The temperature control mechanism includes several heat-conducting shells, semiconductor heating rods, several semiconductor cooling plates, heat dissipation fins, and a heat insulation shell. The heat-conducting shells are installed on the top of the surface of the fermentation tank body. The semiconductor heating rods are installed on both sides of the bottom of the heat-conducting shells. The semiconductor cooling plates are installed on the bottom of the surface of the fermentation tank body. The heat dissipation fins are welded to the surface of the semiconductor cooling plates. The heat insulation shell is fixedly connected to the inner side of the support shell. The side of the heat dissipation fins away from the semiconductor cooling plates extends through and to the outer side of the heat insulation shell.

[0008] Preferably, the control mechanism includes three temperature sensors, a PLC controller, a servo motor, a connecting shaft, and a stirring rod. The temperature sensors are installed on the left side of the support shell, and the detection end on the right side of the temperature sensor passes through the support shell, the heat insulation shell, and the fermentation tank body and is fixedly connected to the inside of the fermentation tank body.

[0009] Preferably, the PLC controller is installed on the front side of the support shell, the servo motor is installed on the top of the fermenter body, and the connecting shaft is connected to the top of the stirring rod via a flat key.

[0010] Preferably, the output end of the servo motor at the bottom passes through the fermenter body and is fixedly connected to the top of the connecting shaft, and the stirring rod is fixedly connected to the bottom of the connecting shaft.

[0011] Preferably, a filling pipe is fixedly connected to the left side of the top of the fermenter body, and a plug is snapped into the top of the inner side of the filling pipe.

[0012] Preferably, an exhaust pipe is fixedly connected to the right side of the top of the fermenter body, an electromagnetic one-way valve is fixedly connected to the right side of the exhaust pipe, and an air outlet pipe is fixedly connected to the right side of the electromagnetic one-way valve.

[0013] Preferably, a support ring is fixedly connected to the bottom of the surface of the support shell, and a support column is fixedly connected to the bottom of the support ring.

[0014] Preferably, the inner side of the heat-conducting shell is filled with heat-conducting oil, and the surface of the heat-conducting shell is coated with an anti-corrosion coating.

[0015] Preferably, a reinforcing ring is fixedly connected at the connection between the top heating end of the semiconductor heating rod and the heat-conducting shell, and the surface of the reinforcing ring is coated with an anti-corrosion coating.

[0016] Preferably, the heat-conducting shell is made of copper, and the inner wall of the heat-conducting shell is coated with thermally conductive silicone.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The temperature control mechanism of this application combines a semiconductor heating rod and a semiconductor cooling plate. The semiconductor heating rod can heat the top of the fermentation tank body in a targeted manner, and the semiconductor cooling plate can cool the bottom of the fermentation tank body. The operation of the semiconductor heating rod and the semiconductor cooling plate can be controlled by the control mechanism.

[0019] 2. The three temperature sensors in the control mechanism of this application are installed at different heights within the fermentation tank, enabling real-time monitoring of temperature changes at different levels (upper, middle, and lower) within the fermentation tank. This provides comprehensive and accurate temperature data, offering a reliable basis for temperature control. The PLC controller is connected to the temperature sensors, semiconductor heating rods, semiconductor cooling plates, and servo motors. It has a built-in preset temperature control program that can automatically control the operating status of the semiconductor heating rods and semiconductor cooling plates based on the temperature data fed back by the temperature sensors. This allows for temperature regulation within the fermentation tank and also controls the operation of the servo motors, meeting the temperature and stirring requirements at different stages of baijiu fermentation and ensuring the stability and consistency of the fermentation process. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the temperature control equipment for liquor fermentation according to this utility model;

[0021] Figure 2 This is a schematic diagram of the electromagnetic one-way valve of this utility model;

[0022] Figure 3 This is a schematic diagram of the temperature control mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the PLC controller of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the stirring rod of this utility model.

[0025] In the diagram, 1. Support shell; 2. Temperature control mechanism; 21. Heat-conducting shell; 22. Semiconductor heating rod; 23. Semiconductor cooling plate; 24. Heat dissipation fins; 25. Heat insulation shell; 3. Fermentation tank body; 4. Control mechanism; 41. Temperature sensor; 42. PLC controller; 43. Servo motor; 44. Connecting shaft; 45. Stirring rod; 5. Filling pipe; 6. Plug; 7. Exhaust pipe; 8. Solenoid one-way valve; 9. Gas outlet pipe; 10. Support ring; 11. Support column; 12. Reinforcing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A temperature control device for fermenting baijiu (Chinese liquor) includes a support shell 1, a temperature control mechanism 2 fixedly connected to the inner side of the support shell 1, a fermentation tank body 3 fixedly connected to the inner wall of the temperature control mechanism 2, and a control mechanism 4 installed on the left side of the support shell 1.

[0029] The temperature control mechanism 2 includes several heat-conducting shells 21, semiconductor heating rods 22, several semiconductor cooling plates 23, heat dissipation fins 24, and a heat insulation shell 25. The heat-conducting shells 21 are installed on the top of the surface of the fermentation tank body 3. The semiconductor heating rods 22 are installed on both sides of the bottom of the heat-conducting shells 21. The semiconductor cooling plates 23 are installed on the bottom of the surface of the fermentation tank body 3. The heat dissipation fins 24 are welded to the surface of the semiconductor cooling plates 23. The heat insulation shell 25 is fixedly connected to the inner side of the support shell 1. The side of the heat dissipation fins 24 away from the semiconductor cooling plates 23 extends through and to the outer side of the heat insulation shell 25.

[0030] In this embodiment: the support shell 1 can support and limit the temperature control mechanism 2, the fermentation tank body 3, and the control mechanism 4. The fermentation tank body 3 is the core place for baijiu fermentation, providing fermentation space for microorganisms. The internal environmental conditions such as temperature and humidity directly affect the fermentation quality and yield of baijiu. The heat-conducting shell 21 can quickly transfer the heat generated by the semiconductor heating rod 22 to the fermentation tank body 3, improving heating efficiency. The semiconductor heating rod 22 can quickly heat the heat-conducting shell 21. The semiconductor cooling plate 23 is installed at the bottom of the surface of the fermentation tank body 3. When the temperature inside the fermentation tank is too high, it can cool down to avoid damage to microorganisms and ensure the stability of the fermentation process. The heat dissipation fins 24 increase the heat dissipation area and can dissipate the heat generated by the semiconductor cooling plate 23 in time, ensuring the normal operation of the semiconductor cooling plate 23 and improving cooling efficiency. The heat insulation shell 25 effectively reduces the heat exchange between the fermentation tank body 3 and the external environment, playing a role in heat insulation and heat preservation, reducing energy consumption, and also making the temperature inside the fermentation tank more stable.

[0031] Specifically, such as Figure 4 , Figure 5 As shown, the control mechanism 4 includes three temperature sensors 41, a PLC controller 42, a servo motor 43, a connecting shaft 44, and a stirring rod 45. The temperature sensors 41 are installed on the left side of the support shell 1, and the detection end of the temperature sensor 41 on the right side passes through the support shell 1, the heat insulation shell 25, and the fermentation tank body 3 respectively and is fixedly connected to the inside of the fermentation tank body 3.

[0032] Specifically, such as Figure 4 , Figure 5 As shown, the PLC controller 42 is installed on the front side of the support shell 1, the servo motor 43 is installed on the top of the fermenter body 3, and the connecting shaft 44 is connected to the top of the stirring rod 45 by a flat key.

[0033] Specifically, such as Figure 4 , Figure 5 As shown, the output end of the servo motor 43 at the bottom passes through the fermenter body 3 and is fixedly connected to the top of the connecting shaft 44, and the stirring rod 45 is fixedly connected to the bottom of the connecting shaft 44.

[0034] In this embodiment: by setting a temperature sensor 41, the temperature changes of different layers in the upper, middle and lower parts of the fermenter can be monitored in real time and accurately, providing precise temperature data to the PLC controller 42. The PLC controller 42 receives the temperature data fed back by the temperature sensor 41 and automatically controls the working status of the semiconductor heating rod 22, the semiconductor cooling plate 23 and the servo motor 43 according to the preset temperature control program, so as to achieve precise adjustment of the temperature in the fermenter. The servo motor 43 drives the stirring rod 45 to rotate through the connecting shaft 44, stirring the material in the fermenter, promoting the mixing of the material and heat transfer, making the temperature in the fermenter more uniform, and improving the uniformity and efficiency of fermentation. The connecting shaft 44 transmits the power of the servo motor 43 to the stirring rod 45, ensuring that the stirring rod 45 can rotate stably and reliably. The stirring rod 45, driven by the servo motor 43, stirs the material in the fermenter, breaking the stratification of the material, making the temperature and nutrients in the fermenter more uniform, which is conducive to the growth and fermentation of microorganisms.

[0035] Specifically, such as Figure 5 As shown, a filling pipe 5 is fixedly connected to the left side of the top of the fermenter body 3, and a plug 6 is snapped into the top of the inner side of the filling pipe 5.

[0036] Specifically, such as Figure 2 As shown, an exhaust pipe 7 is fixedly connected to the right side of the top of the fermenter body 3, an electromagnetic one-way valve 8 is fixedly connected to the right side of the exhaust pipe 7, and an air outlet pipe 9 is fixedly connected to the right side of the electromagnetic one-way valve 8.

[0037] In this embodiment: by setting up the filling pipe 5, it is convenient to add raw materials, inoculum, nutrients, etc. into the fermentation tank to meet the material addition requirements in the fermentation process of liquor. By setting up the plug 6, it plays a sealing role to prevent gas leakage and external impurities from entering the fermentation tank, ensuring a relatively closed and hygienic fermentation environment. By setting up the exhaust pipe 7, it is used to discharge gases such as carbon dioxide generated during the fermentation process to prevent excessive pressure in the tank and ensure the safe operation of the fermentation process. By setting up the electromagnetic one-way valve 8, it is possible to discharge gas according to the gas emission requirements to prevent outside air from flowing back into the fermentation tank and to ensure the stability of the fermentation environment. By setting up the gas outlet pipe 9, the gas discharged from the fermentation tank is discharged to the outside.

[0038] Specifically, such as Figure 2 As shown, a support ring 10 is fixedly connected to the bottom of the surface of the support shell 1, and a support column 11 is fixedly connected to the bottom of the support ring 10.

[0039] Specifically, such as Figure 3 As shown, the inner side of the heat-conducting shell 21 is filled with heat-conducting oil, and the surface of the heat-conducting shell 21 is coated with anti-corrosion paint.

[0040] In this embodiment: by setting a support ring 10, the structural strength of the support shell 1 is enhanced, enabling the support shell 1 to better withstand the weight of the internal components and the vibration generated during operation. By setting a support column 11, a stable support is provided for the support shell 1, ensuring that the support shell 1 is placed stably. By setting a heat transfer oil, which has good thermal conductivity, filling the inside of the heat transfer shell 21 can further improve the efficiency of heat transfer. By setting an anti-corrosion coating, a protective film can be formed, effectively isolating external corrosive substances from contact with the heat transfer shell 21 and preventing the heat transfer shell 21 from being corroded.

[0041] Specifically, such as Figure 5 As shown, a reinforcing ring 12 is fixedly connected to the connection between the top heating end of the semiconductor heating rod 22 and the heat-conducting shell 21, and the surface of the reinforcing ring 12 is coated with an anti-corrosion coating.

[0042] Specifically, such as Figure 3 As shown, the heat-conducting shell 21 is made of copper, and the inner wall of the heat-conducting shell 21 is coated with thermally conductive silicone.

[0043] In this embodiment: by setting a reinforcing ring 12, the structural strength of the connection between the semiconductor heating rod 22 and the heat-conducting shell 21 is enhanced. By setting an anti-corrosion coating, the connection can be prevented from being corroded by corrosive substances in the liquor fermentation environment. By setting the heat-conducting shell 21 to be made of copper, the heat generated by the semiconductor heating rod 22 can be quickly transferred to the fermentation tank body 3, so that the temperature inside the fermentation tank can be rapidly raised to a suitable range to meet the temperature requirements during the liquor fermentation process. By setting thermally conductive silicone, the heat transfer efficiency from the heat-conducting shell 21 to the fermentation tank body 3 can be further improved.

[0044] Working Principle: First, when fermentation of baijiu is required, the user adds raw materials, inoculum, nutrients, and other necessary materials to the fermentation tank body 3 through the filling pipe 5. After adding, the filling pipe 5 is sealed with the cap 6. Then, the user powers on and starts the fermentation tank body 3. At this time, the temperature sensor 41 monitors the temperature changes of different layers in the upper, middle, and lower parts of the fermentation tank in real time and feeds back the monitored temperature data to the PLC controller 42. The PLC controller 42 analyzes and processes the temperature data according to the preset temperature control program. When the temperature data fed back by the temperature sensor 41 is lower than the preset temperature range, the PLC controller 42 will control the semiconductor heating rod 22 to start working. The heat generated by the semiconductor heating rod 22 is quickly transferred to the heat-conducting shell 21. Since the heat-conducting shell 21 is made of copper and filled with heat-conducting oil on the inside and coated with heat-conducting silicone on the inner wall, it can quickly transfer heat to the fermentation tank body 3, raising the temperature inside the fermentation tank to a suitable range. Afterward, if the temperature sensor 41 feeds back the temperature... If the temperature exceeds the preset temperature range, the PLC controller 42 will activate the semiconductor cooling plate 23. The semiconductor cooling plate 23 will then cool the fermentation tank body 3. Simultaneously, the heat dissipation fins 24 will dissipate the heat generated by the semiconductor cooling plate 23. During this process, the heat insulation shell 25 will reduce the heat exchange between the fermentation tank body 3 and the external environment, making the temperature inside the fermentation tank more stable. Finally, during the fermentation process, the PLC controller 42 can activate the servo motor 43 and the electromagnetic single-way valve 8 at a timer according to the user's preset time. After the servo motor 43 is activated, it will drive the stirring rod 45 to rotate through the connecting shaft 44. Driven by the servo motor 43, the stirring rod 45 will stir the material inside the fermentation tank, breaking up the stratification of the material, promoting the mixing of the material and the transfer of heat, and making the temperature and nutrients inside the fermentation tank more evenly distributed. At the same time, when the electromagnetic single-way valve 8 is opened, the carbon dioxide and other gases generated during the fermentation process will be discharged through the exhaust pipe 7, and the discharged gases will be discharged to the outside through the gas outlet pipe 9.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature control device for fermenting baijiu (Chinese liquor), comprising a support shell (1), characterized in that: A temperature control mechanism (2) is fixedly connected to the inner side of the support shell (1), and a fermentation tank body (3) is fixedly connected to the inner wall of the temperature control mechanism (2). A control mechanism (4) is installed on the left side of the support shell (1). The temperature control mechanism (2) includes several heat-conducting shells (21), semiconductor heating rods (22), several semiconductor cooling plates (23), heat dissipation fins (24), and heat insulation shells (25). The heat-conducting shells (21) are installed on the top of the surface of the fermentation tank body (3). The semiconductor heating rods (22) are installed on both sides of the bottom of the heat-conducting shells (21). The semiconductor cooling plates (23) are installed on the bottom of the surface of the fermentation tank body (3). The heat dissipation fins (24) are welded to the surface of the semiconductor cooling plates (23). The heat insulation shells (25) are fixedly connected to the inner side of the support shell (1). The side of the heat dissipation fins (24) away from the semiconductor cooling plates (23) extends through and to the outer side of the heat insulation shells (25).

2. The temperature control device for liquor fermentation according to claim 1, characterized in that: The control mechanism (4) includes three temperature sensors (41), a PLC controller (42), a servo motor (43), a connecting shaft (44), and a stirring rod (45). The temperature sensors (41) are installed on the left side of the support shell (1). The detection end of the temperature sensor (41) on the right side passes through the support shell (1), the heat insulation shell (25), and the fermenter body (3) and is fixedly connected to the inside of the fermenter body (3).

3. The temperature control device for liquor fermentation according to claim 2, characterized in that: The PLC controller (42) is installed on the front side of the support shell (1), the servo motor (43) is installed on the top of the fermenter body (3), and the connecting shaft (44) is connected to the top of the stirring rod (45) by a flat key.

4. The temperature control device for liquor fermentation according to claim 2, characterized in that: The output end of the servo motor (43) passes through the fermenter body (3) and is fixedly connected to the top of the connecting shaft (44), and the stirring rod (45) is fixedly connected to the bottom of the connecting shaft (44).

5. The temperature control device for liquor fermentation according to claim 1, characterized in that: A filling pipe (5) is fixedly connected to the left side of the top of the fermenter body (3), and a plug (6) is snapped into the top of the inner side of the filling pipe (5).

6. The temperature control device for liquor fermentation according to claim 1, characterized in that: An exhaust pipe (7) is fixedly connected to the right side of the top of the fermenter body (3), an electromagnetic single-way valve (8) is fixedly connected to the right side of the exhaust pipe (7), and an air outlet pipe (9) is fixedly connected to the right side of the electromagnetic single-way valve (8).

7. The temperature control device for liquor fermentation according to claim 1, characterized in that: A support ring (10) is fixedly connected to the bottom of the surface of the support shell (1), and a support column (11) is fixedly connected to the bottom of the support ring (10).

8. The temperature control device for liquor fermentation according to claim 1, characterized in that: The inner side of the heat-conducting shell (21) is filled with heat-conducting oil, and the surface of the heat-conducting shell (21) is coated with anti-corrosion coating.

9. The temperature control device for liquor fermentation according to claim 1, characterized in that: A reinforcing ring (12) is fixedly connected at the connection between the top heating end of the semiconductor heating rod (22) and the heat-conducting shell (21), and the surface of the reinforcing ring (12) is coated with an anti-corrosion coating.

10. The temperature control device for liquor fermentation according to claim 1, characterized in that: The heat-conducting shell (21) is made of copper, and the inner wall of the heat-conducting shell (21) is coated with thermally conductive silicone.