A temperature-controlled fermentation device for fermenting sour soup

Abstract

This utility model relates to the field of fermentation technology, specifically disclosing a temperature-controlled fermentation device for fermenting sour soup. Its structure includes a fermentation tank, a stirring assembly and a cooling coil disposed inside the tank, and a heating jacket outside the tank. The stirring assembly is driven by a drive unit to rotate a first and a second stirring component in opposite directions. The cooling coil, in a coaxial spiral single-tube reciprocating flow structure, is placed between the two stirring components. This utility model receives real-time temperature data from a thermometer via a controller, and links a refrigeration unit and a circulating pump to efficiently circulate the refrigerant within the cooling coil to achieve cooling, or activates the heating jacket to raise the temperature, thus controlling the fermentation temperature. Simultaneously, the drive unit drives the inner and outer stirring components to rotate in opposite directions, thoroughly stirring the material to avoid uneven fermentation in certain areas, and also improving the heat exchange efficiency between the material and the cooling coil, ultimately ensuring that the sour soup is always in a suitable fermentation environment, guaranteeing fermentation quality.

Description

Technical Field

[0001] This utility model relates to the field of fermentation technology, specifically to a temperature-controlled fermentation device for fermenting sour soup. Background Technology

[0002] The quality of fermented sour soup is significantly affected by stirring and temperature control. Stirring at the right time during fermentation can effectively promote the fermentation process, while temperature control is directly related to the fermentation effect. Specifically, if the temperature is too high, the activity of the microorganisms will be too strong, resulting in fermentation that is too fast. Not only will the sour soup not have a mellow flavor, but it may also breed miscellaneous bacteria and produce off-flavors. When the temperature is moderate, the fermentation speed is stable, and flavor substances can be fully formed, resulting in a smoother taste and richer flavor in the sour soup. If the temperature is too low, the fermentation process will be slow, or even fermentation will stop.

[0003] In the prior art, a sour soup fermentation device with constant temperature function (CN202323536922.8) is disclosed, which includes a device shell, a fermentation space inside the shell, a stirring blade in the fermentation space, a heating space and a cooling space distributed vertically in the channel between the shell and the fermentation space, a cooling fan in the cooling space, a thermometer on the top surface of the shell to monitor the temperature of the fermentation space, a drive motor to drive the rotating shaft and stirring blade to rotate to achieve stirring, and can also drive the cooling fan to operate through bevel gear transmission.

[0004] However, the above-mentioned fermentation device still has shortcomings. On the one hand, the uniformity of material mixing in the fermentation tank is not improved due to the use of unidirectional stirring, which affects the fermentation efficiency. On the other hand, although a heating structure and an external cooling fan are provided, there is no dedicated cooling structure inside the fermentation tank, which makes it impossible to regulate the temperature inside the tank and is insufficient to meet the temperature requirements for stable fermentation of sour soup. Utility Model Content

[0005] To address the technical deficiencies in the background technology, this utility model proposes a temperature-controlled fermentation device for sour soup fermentation. To further solve the aforementioned technical problems and meet practical needs, the specific technical solution is as follows: A temperature-controlled fermentation device for fermenting sour soup includes a fermentation tank and a stirring assembly disposed within the fermentation tank. The stirring assembly includes a first stirring element and a second stirring element, with the second stirring element movably fitted inside the first stirring element. A driving element is disposed at the top of the fermentation tank, and the driving element is pulsatorically connected to the stirring assembly. The driving element drives the first and second stirring elements to rotate in opposite directions within the fermentation tank. A cooling coil is disposed within the fermentation tank, and the cooling coil has a coaxial spiral single-tube reciprocating flow structure, positioned between the first and second stirring elements. The second stirring element is placed inside the cooling coil. A heating jacket is disposed outside the fermentation tank. An electronic thermometer is installed at the top of the fermentation tank. A feed pipe is disposed at the top of the fermentation tank, and a discharge pipe is disposed at the bottom of the fermentation tank.

[0006] As a further technical solution of this utility model, the cooling coil includes an outer spiral tube and an inner spiral tube disposed inside the outer spiral tube and connected to the tail end of the outer spiral tube. The upper end of the cooling coil is provided with a fixing rod connected to the inner wall of the fermenter.

[0007] As a further technical solution of this utility model, the refrigerant in the outer spiral tube flows downward in a spiral, and the refrigerant in the inner spiral tube flows upward in a spiral.

[0008] As a further technical solution of this utility model, the liquid outlet end of the cooling coil is connected to a circulation pump located outside the fermenter, the liquid inlet end of the cooling coil is connected to a refrigeration unit located outside the fermenter, and the circulation pump and the refrigeration unit are connected by a pipeline.

[0009] As a further technical solution of this utility model, the second stirring component includes a second stirring shaft that is rotatably mounted on the top of the fermenter, a second stirring rod that is symmetrically arranged on both sides of the second stirring shaft and located inside the fermenter, and a second bevel gear disposed on the upper end of the second stirring shaft. The second stirring rod is placed inside the cooling coil and its upper end is connected to the lower end of the second stirring shaft.

[0010] As a further technical solution of this utility model, the first stirring component includes a first stirring shaft that is rotatably and movably sleeved inside the second stirring shaft, a first stirring rod that is symmetrically arranged on both sides of the first stirring shaft and located inside the fermenter, and a first bevel gear disposed at the upper end of the first stirring shaft. The first stirring rod is placed outside the cooling coil and its lower end is connected to the lower end of the first stirring shaft. A sealing element is provided between the lower end of the second stirring shaft and the first stirring shaft.

[0011] As a further technical solution of this utility model, the driving component includes a drive motor and a third bevel gear that is connected to the drive motor for transmission. The tooth surfaces of the first bevel gear and the second bevel gear are arranged opposite to each other, and the third bevel gear meshes with the first bevel gear and the second bevel gear for transmission.

[0012] The beneficial effects of this invention are as follows: the first and second stirring components in the stirring assembly are driven to rotate in opposite directions by the driving component and are located on the outer and inner sides of the cooling coil, respectively. This can fully stir the materials in the fermentation tank, avoid uneven local fermentation, and improve the uniformity of material mixing. The cooling coil adopts a coaxial spiral single-tube reciprocating flow structure, with the refrigerant flowing downward in the outer spiral tube and upward in the inner tube. Combined with an external circulation pump and a refrigeration unit, it can quickly cool down. Furthermore, combined with the external heating jacket of the fermentation tank and the electronic thermometer on the top, it can effectively control the fermentation temperature, ensuring that the sour soup is always in a suitable fermentation environment and guaranteeing the fermentation quality. Attached Figure Description

[0013] Figure 1 This is one of the schematic diagrams of the internal structure of this utility model.

[0014] Figure 2 This is the second schematic diagram of the internal structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the stirring assembly of this utility model.

[0016] Reference numerals: 1-Fermentation tank; 11-Infeed pipe; 12-Discharge pipe; 13-Cooling coil; 131-Outer spiral tube; 132-Inner spiral tube; 133-Fixing rod; 14-Heating jacket; 15-Electronic thermometer; 16-Circulation pump; 17-Refrigeration unit; 2-Stirring assembly; 21-First stirring shaft; 22-First bevel gear; 23-First stirring rod; 24-Second stirring shaft; 25-Second bevel gear; 26-Second stirring rod; 27-Drive motor; 28-Third bevel gear; 29-Seal. Detailed Implementation

[0017] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0018] like Figures 1 to 3As shown, this utility model provides a technical solution: a temperature-controlled fermentation device for fermenting sour soup, including a fermentation tank 1 and a stirring assembly 2 disposed inside the fermentation tank 1. The stirring assembly 2 includes a first stirring element and a second stirring element, the second stirring element being movably sleeved inside the first stirring element. A driving element is disposed on the top of the stirring assembly 2 at the fermentation tank 1. The driving element is connected to the stirring assembly 2 in a transmission manner. The driving element drives the first stirring element and the second stirring element to rotate in opposite directions inside the fermentation tank 1. A cooling coil 13 is disposed inside the fermentation tank 1. The cooling coil 13 has a coaxial spiral single-tube reciprocating flow structure. The cooling coil 13 is disposed between the first stirring element and the second stirring element. The second stirring element is placed inside the cooling coil 13. A heating jacket 14 is disposed outside the fermentation tank 1. An electronic thermometer 15 is installed on the top of the fermentation tank 1. A feed pipe 11 is disposed on the top of the fermentation tank 1. A discharge pipe 12 is disposed on the bottom of the fermentation tank 1.

[0019] This invention uses a drive unit to drive a first stirring element and a second stirring element to rotate in opposite directions within the fermentation tank 1. The first stirring rod 23 of the first stirring element is located outside the cooling coil 13, while the second stirring rod 26 of the second stirring element is located inside the cooling coil 13. This reverse rotation, combined with the inner and outer stirring positions, effectively agitates the sour soup material within the fermentation tank 1, preventing uneven fermentation in localized areas due to insufficient agitation. This improves the uniformity of material mixing and creates favorable conditions for uniform fermentation of the sour soup. Both the top inlet pipe 11 and the bottom outlet pipe 12 of the fermentation tank 1 are equipped with valves for easy control of material flow in and out of the fermentation tank 1.

[0020] The structure of this utility model should also include a controller, which is electrically connected to the drive motor 27, the refrigeration unit 17, the circulating pump 16, the heating jacket 14, and the electronic thermometer 15. The electronic thermometer 15 on the top of the fermentation tank 1 can collect the fermentation temperature of the sour soup in the tank in real time and transmit the temperature data synchronously to the controller. When the temperature data received by the controller shows that the temperature in the tank exceeds the suitable fermentation range of the sour soup, the controller controls the refrigeration unit 17 to prepare refrigerant and simultaneously controls the circulating pump 16 to operate, so that the refrigerant circulates in the cooling coil 13. Since the cooling coil 13 adopts a coaxial spiral single-tube reciprocating flow structure, the refrigerant in the outer spiral tube 131 flows spirally downwards, and the inner spiral tube... The refrigerant inside tank 132 flows upward in a spiral, effectively increasing the contact area between the refrigerant and the material inside the tank. This allows for the rapid removal of excess heat from the tank, achieving efficient cooling. When the temperature data received by the controller shows that the temperature inside the tank is lower than the suitable fermentation range for the sour soup, the controller activates the heating jacket 14 outside the fermentation tank 1. The heating jacket 14 transfers heat into the tank, maintaining or raising the temperature inside the tank to the suitable range. Through the coordinated linkage of the controller and various components, the drive motor 27 can drive the stirring components to ensure that the material is stirred thoroughly and evenly. At the same time, the temperature control system can precisely control the fermentation temperature, ensuring that the sour soup inside the fermentation tank 1 is always in a stable and suitable fermentation environment, thus guaranteeing the fermentation quality of the sour soup.

[0021] As one of the preferred embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the cooling coil 13 includes an outer spiral tube 131 and an inner spiral tube 132 disposed inside the outer spiral tube 131 and connected to the tail end of the outer spiral tube 131. The upper end of the cooling coil 13 is provided with a fixing rod 133 connected to the inner wall of the fermenter 1.

[0022] Furthermore, in the above structure, the refrigerant in the outer spiral tube 131 flows downward in a spiral, while the refrigerant in the inner spiral tube 132 flows upward in a spiral.

[0023] Specifically, the first end of the inner spiral tube 132 is connected to the last end of the outer spiral tube 131, ensuring that the refrigerant can smoothly flow from the outer spiral tube 131 into the inner spiral tube 132. Considering the refrigerant flow direction, since the refrigerant in the outer spiral tube 131 flows downwards in a spiral motion, and the first end of the outer spiral tube 131 is the liquid inlet of the cooling coil 13, the refrigerant supplied by the refrigeration unit 17 can enter the cooling coil 13 through this liquid inlet. The refrigerant in the inner spiral tube 132 flows upwards in a spiral motion. After flowing into the first end of pipe 132, the refrigerant flows upward and finally flows out from the tail end of the inner spiral pipe 132. The tail end of the inner spiral pipe 132 is the liquid outlet of the cooling coil 13. The outflowing refrigerant can enter the circulation pump 16 through this liquid outlet. In addition, the upper end of the cooling coil 13 is provided with a fixing rod 133 connected to the inner wall of the fermenter 1. The fixing rod 133 can stably fix the cooling coil 13 in the fermenter 1, preventing it from shifting its position when the stirring component 2 is running or the refrigerant is flowing, thus ensuring a stable cooling effect.

[0024] As one of the preferred embodiments of this utility model, such as Figure 2 As shown, the outlet end of the cooling coil 13 is connected to the circulation pump 16 located outside the fermenter 1, and the inlet end of the cooling coil 13 is connected to the refrigerator 17 located outside the fermenter 1. The circulation pump 16 and the refrigerator 17 are connected by a pipeline.

[0025] Specifically, the circulating pump 16, the chiller 17, the electronic thermometer 15, and the controller work together to cool the fermentation tank 1. When the electronic thermometer 15 at the top of the fermentation tank 1 detects that the temperature inside the tank exceeds the suitable fermentation range for the sour soup, it transmits the temperature signal to the controller in real time. The controller first controls the chiller 17 outside the fermentation tank 1 to start, prepare low-temperature refrigerant, and deliver it to the inlet end of the cooling coil 13. After entering the outer spiral tube 131, the refrigerant flows downward along the spiral path, then flows into the inner spiral tube 132 through the tail end of the outer spiral tube 131, and flows upward along the inner spiral path, fully absorbing excess heat in the tank during the process. At the same time, the controller controls the circulating pump 16 to start. The circulating pump 16 is connected to the outlet end of the cooling coil 13, which can extract the refrigerant after absorbing heat from the outlet end and send it back to the chiller 17 through the pipeline for re-cooling, forming a closed-loop refrigerant circulation, which quickly and stably reduces the temperature inside the tank to meet the temperature requirements for sour soup fermentation.

[0026] As one of the preferred embodiments of this utility model, such as Figure 1 and Figure 3 As shown, the second stirring component includes a second stirring shaft 24 rotatably mounted on the top of the fermentation tank 1, a second stirring rod 26 symmetrically arranged on both sides of the second stirring shaft 24 and located inside the fermentation tank 1, and a second bevel gear 25 disposed on the upper end of the second stirring shaft 24. The second stirring rod 26 is placed inside the cooling coil 13 and its upper end is connected to the lower end of the second stirring shaft 24.

[0027] The first stirring component includes a first stirring shaft 21 that is rotatably and movably sleeved inside the second stirring shaft 24, a first stirring rod 23 that is symmetrically arranged on both sides of the first stirring shaft 21 and located inside the fermentation tank 1, and a first bevel gear 22 disposed on the upper end of the first stirring shaft 21. The first stirring rod 23 is placed outside the cooling coil 13 and its lower end is connected to the lower end of the first stirring shaft 21. A sealing element 29 is provided between the lower end of the second stirring shaft 24 and the first stirring shaft 21.

[0028] The second stirring shaft 24 is rotatably mounted on the top of the fermentation tank 1. The second stirring rods 26, which are symmetrically arranged on both sides, are located inside the cooling coil 13. The upper ends of the second stirring rods 26 are fixedly connected to the lower ends of the second stirring shaft 24 and can rotate synchronously with the second stirring shaft 24. The first stirring shaft 21 is inserted into the second stirring shaft 24 through a movable sleeve. The first stirring rods 23 on both sides are located outside the cooling coil 13, and the lower ends of the first stirring rods 23 are connected to the lower ends of the first stirring shaft 21, forming a layered stirring structure of "inner-coil-outer". At the same time, the sealing part 29 between the lower end of the second stirring shaft 24 and the first stirring shaft 21 can prevent the acid soup material in the fermentation tank 1 from seeping into the gap between the two shafts and avoid affecting the stability of the stirring components.

[0029] The controller is electrically connected to the drive motor 27. When stirring is required, the controller sends a command to the drive motor 27 of the drive unit, so that the drive unit can drive the first stirring shaft 21 and the second stirring shaft 24 to rotate in opposite directions. This allows the outer first stirring rod 23 and the inner second stirring rod 26 to stir the material from different directions, breaking the material flow inertia and making the sour soup material in the fermentation tank 1 fully mixed. At the same time, the reverse stirring can also drive the material to continuously contact the outer spiral tube 131 and the inner spiral tube 132 of the cooling coil 13, improving the heat exchange efficiency between the material and the refrigerant, thereby removing the heat of the material more quickly, ensuring uniform and efficient cooling, and providing a uniform temperature and material environment for the fermentation of sour soup.

[0030] As one of the preferred embodiments of this utility model, such as Figure 3 As shown, the driving component includes a drive motor 27 and a third bevel gear 28 that is connected to the drive motor 27. The tooth surfaces of the first bevel gear 22 and the second bevel gear 25 are arranged opposite to each other, and the third bevel gear 28 meshes with the first bevel gear 22 and the second bevel gear 25 respectively.

[0031] The drive motor 27 drives the third bevel gear 28 to rotate. The first bevel gear 22 is fixed to the upper end of the first stirring shaft 21, and the second bevel gear 25 is fixed to the upper end of the second stirring shaft 24, with their tooth surfaces facing each other. The third bevel gear 28 can mesh with the first bevel gear 22 and the second bevel gear 25 at the same time. When the drive motor 27 drives the third bevel gear 28 to rotate, it will drive the first bevel gear 22 and the second bevel gear 25 to rotate in opposite directions, thereby driving the first stirring shaft 21 and the second stirring shaft 24 to rotate in opposite directions.

[0032] The drive motor 27 is electrically connected to the controller. The controller can adjust the start, stop and speed of the drive motor 27 according to the needs of the fermentation stage of the sour soup to ensure that the stirring intensity is suitable for the material state. When the drive unit drives the first stirring shaft 21 and the second stirring shaft 24 to rotate in opposite directions, the first stirring rod 23 on the outside of the cooling coil 13 and the second stirring rod 26 on the inside of the cooling coil 13 synchronously stir the material in opposite directions. This can eliminate the stirring dead corners in the fermentation tank 1, make the material fully mixed, avoid uneven local fermentation, and promote full contact between the material and the cooling coil 13 to improve the heat exchange efficiency.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A temperature-controlled fermentation device for fermenting sour soup, comprising a fermentation tank (1) and a stirring assembly (2) disposed within the fermentation tank (1), characterized in that, The stirring assembly (2) includes a first stirring element and a second stirring element. The second stirring element is movably sleeved inside the first stirring element. The stirring assembly (2) has a driving element at the top of the fermentation tank (1). The driving element is connected to the stirring assembly (2) in a transmission manner. The driving element drives the first stirring element and the second stirring element to rotate in opposite directions inside the fermentation tank (1). The fermentation tank (1) is provided with a cooling coil (13). The cooling coil (13) has a coaxial spiral single-tube reciprocating flow structure. The cooling coil (13) is located between the first stirring element and the second stirring element. The second stirring element is placed inside the cooling coil (13). The fermentation tank (1) is provided with a heating jacket (14) on the outside. The fermentation tank (1) is equipped with an electronic thermometer (15) at the top. The fermentation tank (1) is provided with a feed pipe (11) at the top. The fermentation tank (1) is provided with a discharge pipe (12) at the bottom.

2. The temperature-controlled fermentation equipment for sour soup fermentation according to claim 1, characterized in that, The cooling coil (13) includes an outer spiral tube (131) and an inner spiral tube (132) located inside the outer spiral tube (131) and connected to the tail end of the outer spiral tube (131). The upper end of the cooling coil (13) is provided with a fixing rod (133) connected to the inner wall of the fermenter (1).

3. The temperature-controlled fermentation equipment for sour soup fermentation according to claim 2, characterized in that, The refrigerant in the outer spiral tube (131) flows downward in a spiral, while the refrigerant in the inner spiral tube (132) flows upward in a spiral.

4. The temperature-controlled fermentation equipment for sour soup fermentation according to claim 2, characterized in that, The outlet end of the cooling coil (13) is connected to the circulation pump (16) located outside the fermenter (1), and the inlet end of the cooling coil (13) is connected to the refrigerator (17) located outside the fermenter (1). The circulation pump (16) and the refrigerator (17) are connected by a pipeline.

5. The temperature-controlled fermentation equipment for sour soup fermentation according to claim 1, characterized in that, The second stirring component includes a second stirring shaft (24) that is rotatably mounted on the top of the fermenter (1), a second stirring rod (26) that is symmetrically arranged on both sides of the second stirring shaft (24) and located inside the fermenter (1), and a second bevel gear (25) that is located on the upper end of the second stirring shaft (24). The second stirring rod (26) is placed inside the cooling coil (13) and its upper end is connected to the lower end of the second stirring shaft (24).

6. The temperature-controlled fermentation equipment for sour soup fermentation according to claim 5, characterized in that, The first stirring component includes a first stirring shaft (21) that is rotatably and movably sleeved inside the second stirring shaft (24), a first stirring rod (23) that is symmetrically arranged on both sides of the first stirring shaft (21) and located inside the fermenter (1), and a first bevel gear (22) that is disposed at the upper end of the first stirring shaft (21). The first stirring rod (23) is placed outside the cooling coil (13) and its lower end is connected to the lower end of the first stirring shaft (21). A sealing element (29) is provided between the lower end of the second stirring shaft (24) and the first stirring shaft (21).

7. The temperature-controlled fermentation equipment for sour soup fermentation according to claim 6, characterized in that, The driving component includes a drive motor (27) and a third bevel gear (28) that is connected to the drive motor (27) for transmission. The tooth surfaces of the first bevel gear (22) and the second bevel gear (25) are arranged opposite to each other. The third bevel gear (28) meshes with the first bevel gear (22) and the second bevel gear (25) for transmission.

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