External heat exchanger for fermenter
By using an external heat exchanger in the fermenter, combined with a heating chamber and a heat exchanger, the problem of uneven heating in traditional fermenters is solved, achieving uniform heating and efficient temperature rise inside the tank.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MINGHAO MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional fermentation tank heating equipment suffers from slow, uneven, and unstable heating, resulting in uneven heating and low efficiency during the fermentation process.
An external heat exchanger is used, with a heating chamber set on the side of the tank and a heat exchanger set at the bottom. The liquid in the heating chamber is heated by an electric heating tube, and the material inside the tank is directly heated by the heat exchanger, so as to achieve uniform heating.
This resulted in more uniform and efficient heating inside the tank, improving the fermentation tank's heating efficiency.
Smart Images
Figure CN224313510U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fermentation tank heating technology, and relates to an external heat exchanger for fermentation tanks. Background Technology
[0002] Fermentation tanks are commonly used equipment for microbial fermentation. During fermentation, the raw materials inside the tank need to be heated. Traditionally, the tank is heated by a serpentine coil that is wound around the outer wall of the inner tank and carries steam. However, the contact area between the serpentine coil and the outer wall of the inner tank is small, resulting in slow heating, uneven heating of the tank, rapid temperature changes, and poor stability. Improvements are needed to provide a fermentation tank heating device that provides uniform heating and high efficiency. Summary of the Invention
[0003] The purpose of this invention is to provide an external heat exchanger for fermenters to solve the problems mentioned in the background art.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] An external heat exchanger for a fermenter includes a tank body and a heating chamber. The heating chamber is located on the side of the tank body and contains an electric heating tube. Four sets of support legs are located at the bottom of the tank body, and a heat exchanger is installed on the top of each support leg. A pressure pump is installed on the top of the heat exchanger and is connected to the pressure pump. A liquid extraction pipe connected to the pressure pump is located on the side of the tank body. One end of the liquid extraction pipe is located at the top of the tank body, and a rotating rod is movably mounted on the bottom of the liquid extraction pipe via a bearing. A mixing blade is located on the outer side of the rotating rod, and a liquid suction port is located at the bottom of the rotating rod.
[0006] In the aforementioned external heat exchanger for fermentation tanks, a feed inlet is provided on one side of the top of the tank, and a discharge pipe is provided in the middle of the bottom of the tank.
[0007] In the aforementioned external heat exchanger for the fermenter, a level gauge is installed on the side of the tank, and an anti-dry-burning sensor is installed at the bottom of the level gauge.
[0008] In the aforementioned external heat exchanger for fermentation tanks, a driven gear is fitted on the top of the rotating rod, and a drive gear is meshed with one side of the driven gear. A motor is installed on one side of the top of the tank body, and the output end of the motor is connected to the center of the drive gear inside the tank body.
[0009] In the aforementioned external heat exchanger for the fermenter, a breather is installed on one side of the top of the tank, and a temperature sensor is installed on the side of the tank.
[0010] In the aforementioned external heat exchanger for fermentation tanks, one end of the heat exchanger is provided with a conduit one, and the other end of the heat exchanger is provided with a conduit two, and both the conduit one and the conduit two are connected to the interior of the heating chamber.
[0011] Compared with existing technologies, the advantages of this utility model of an external heat exchanger for fermenters are:
[0012] This application provides a heating chamber on the side of the tank, which can directly heat the liquid inside the heating chamber through an electric heating tube, thereby transferring heat from the side of the tank to the inside of the tank to raise the temperature of the raw materials inside the tank. At the same time, a heat exchanger is also provided at the bottom of the tank. One end of the heat exchanger can be directly connected to the middle of the tank through a liquid extraction pipe, allowing materials to be directly extracted from the middle of the tank. After the materials are heated by heat exchange in the heat exchanger, they are discharged into the tank. In this way, the heat exchanger, together with the heating chamber on the side of the tank, can make the temperature rise inside the tank more uniform and improve the heating efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the external heat exchanger for the fermenter of this utility model.
[0014] Figure 2 This is a schematic diagram of the internal structure of the external heat exchanger for the fermenter of this utility model.
[0015] In the diagram, 1. Tank body; 2. Heating chamber; 3. Feed inlet; 4. Motor; 5. Liquid extraction pipe; 6. Breather; 7. Level gauge; 8. Anti-dry burning sensor; 9. Support leg; 10. Discharge pipe; 11. Heating element; 12. Heat exchanger; 13. Pressure pump; 14. Temperature sensor; 15. Conduit 1; 16. Driven gear; 17. Rotating rod; 18. Drive gear; 19. Mixing blade; 20. Liquid suction port. Detailed Implementation
[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0017] The fermenter uses an external heat exchanger, which includes a tank body 1 and a heating chamber 2. The heating chamber 2 is located on the side of the tank body 1. The heating chamber 2 is equipped with an electric heating tube 11. Four sets of support legs 9 are provided at the bottom of the tank body 1. A heat exchanger 12 is installed on the top of the support legs 9. A pressure pump 13 is installed on the top of the heat exchanger 12 and is connected to the pressure pump 12. A liquid extraction pipe 5 connected to the pressure pump 13 is provided on the side of the tank body 1. One end of the liquid extraction pipe 5 is located at the top inside the tank body 1. A rotating rod 17 is movably installed at the bottom of the liquid extraction pipe 5 through a bearing. A mixing blade 19 is provided on the outside of the rotating rod 17. A liquid suction port 20 is provided at the bottom of the rotating rod 17. The pressure pump 13 is a commercially available device known to those skilled in the art. Here we are only using it and have not made any structural or functional improvements to it. We will not go into details here.
[0018] like Figure 1 , Figure 2 As shown, the external heat exchanger for the fermenter of this utility model has a feed inlet 3 on one side of the top of the tank body 1 and a discharge pipe 10 in the middle of the bottom of the tank body 1. The feed inlet 3 feeds the material into the tank body 1. After the fermentation process is completed, the material is discharged through the discharge pipe 10. The heating chamber 2 also has a separate liquid inlet pipe and a liquid outlet pipe, which are located at the top and bottom of the tank body 1, respectively.
[0019] like Figure 1 , Figure 2 As shown, the external heat exchanger for the fermenter of this utility model is specifically designed with a level gauge 7 installed on the side of the tank body 1 and an anti-dry-burning sensor 8 installed at the bottom of the level gauge 7. The level gauge 7 and the anti-dry-burning sensor 8 are commercially available devices known to those skilled in the art. Here, we are simply using them without making any structural or functional improvements, so we will not go into detail here. The model of the level gauge 7 is HG21592-95, and the model of the anti-dry-burning sensor 8 is TPS200111-11.
[0020] like Figure 1 , Figure 2 As shown, the external heat exchanger for the fermenter of this utility model has a driven gear 16 sleeved on the top of the rotating rod 17. A drive gear 18 is meshed with one side of the driven gear 16. A motor 4 is installed on one side of the top of the tank body 1. The output end of the motor 4 is connected to the center of the drive gear 18 inside the tank body 1. The motor 4 is a commercially available device known to those skilled in the art. Here we are only using it without making any structural or functional improvements. We will not go into details here. The motor 4 drives the rotating rod 17 and the mixing blade 19 to rotate, thereby mixing and stirring the materials inside the tank body 1.
[0021] like Figure 1 , Figure 2As shown, the external heat exchanger for the fermenter of this utility model is specifically designed with a breather 6 installed on one side of the top of the tank body 1 and a temperature sensor 14 installed on the side of the tank body 1. The breather 6 and the temperature sensor 14 are commercially available devices known to those skilled in the art. Here, we are simply using them without making any structural or functional improvements. We will not go into detail about them here. The model of the temperature sensor 14 is PT100.
[0022] like Figure 1 , Figure 2 As shown, the external heat exchanger for the fermenter of this utility model has a conduit 15 at one end and a conduit 2 at the other end. Both the conduit 15 and the conduit are connected to the interior of the heating chamber 2. The heat exchanger 12 is a commercially available device known to those skilled in the art. Here, we are simply using it without making any structural or functional improvements, so we will not go into detail here. The heat exchanger 12 directly draws the heat transfer liquid from the interior of the heating chamber 2 through the conduit 2, and then exchanges heat with the material drawn by the extraction pipe 5 before being discharged back into the interior of the heating chamber 2 through the conduit 15.
[0023] This invention relates to an external heat exchanger for a fermentation tank. A heating chamber 2 is provided on the side of the tank body 1, and a heat transfer liquid is introduced into the heating chamber 2. During use, fermentation materials are fed into the tank body 1 through the feed inlet 3. The liquid inside the heating chamber 2 is directly heated by the electric heating tube 11, thereby transferring heat from the side of the tank body 1 into the tank body 1, raising the temperature of the raw materials inside. Simultaneously, this application also provides a heat exchanger 12 at the bottom of the tank body 1. The heat source of the heat exchanger 12 is directly drawn from inside the heating chamber 2, and can directly extract the heat transfer liquid around the electric heating tube 11. Then, the material is introduced into the heat exchanger 12. When the heat exchange tubes inside the heat exchanger 12 are exchanging heat, one end of the tube can be directly connected to the middle of the tank 1 through the liquid extraction tube 5. The material can be directly extracted from the middle of the tank 1. The material in the middle of the tank 1 is far away from the heating chamber 2 and the heating efficiency is relatively slow. After the material in the middle of the tank 1 is heated by the heat exchanger 12, it is discharged into the interior of the tank 1. In this way, the heat exchanger 12 continuously exchanges heat, and with the heating chamber 2 on the side of the tank 1, the temperature inside the tank 1 can be heated more evenly, and the heating efficiency of the material can be greatly improved.
[0024] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.
Claims
1. An external heat exchanger for a fermenter, comprising a tank body (1) and a heating chamber (2), characterized in that, A heating chamber (2) is provided on the side of the tank (1). An electric heating tube (11) is installed inside the heating chamber (2). Four sets of support legs (9) are provided at the bottom of the tank (1). A heat exchanger (12) is installed on the top of the support legs (9). A pressure pump (13) is installed on the top of the heat exchanger (12). The pressure pump (13) and the heat exchanger (12) are connected. A liquid extraction pipe (5) connected to the pressure pump (13) is provided on the side of the tank (1). One end of the liquid extraction pipe (5) is placed at the top inside the tank (1). A rotating rod (17) is movably installed at the bottom of the liquid extraction pipe (5) through a bearing. A mixing blade (19) is provided on the outside of the rotating rod (17). A liquid suction port (20) is provided at the bottom of the rotating rod (17).
2. The external heat exchanger for a fermenter according to claim 1, characterized in that, A feed inlet (3) is provided on one side of the top of the tank (1), and a discharge pipe (10) is provided in the middle of the bottom of the tank (1).
3. The external heat exchanger for a fermenter according to claim 1, characterized in that, A level gauge (7) is provided on the side of the tank (1), and an anti-dry-burning sensor (8) is provided at the bottom of the level gauge (7).
4. The external heat exchanger for a fermenter according to claim 1, characterized in that, A driven gear (16) is sleeved on the top of the rotating rod (17), and a drive gear (18) is meshed on one side of the driven gear (16). A motor (4) is installed on one side of the top of the tank (1), and the output end of the motor (4) is connected to the center position of the drive gear (18) inside the tank (1).
5. The external heat exchanger for a fermenter according to claim 1, characterized in that, A respirator (6) is provided on one side of the top of the tank (1), and a temperature sensor (14) is provided on the side of the tank (1).
6. The external heat exchanger for a fermenter according to claim 1, characterized in that, One end of the heat exchanger (12) is provided with a first conduit (15), and the other end of the heat exchanger (12) is provided with a second conduit. Both the first conduit (15) and the second conduit are connected to the interior of the heating chamber (2).