Fermenter structure for food production
By installing a DIN union and a triangular yeast outlet on the fermenter body, combined with a rotating cleaning ball and sampling pipeline, the problem of fermentation broth and yeast residue was solved, achieving efficient cleaning of the fermenter and high-quality fermentation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO MINGHAO MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-09
AI Technical Summary
Existing food fermentation tanks are prone to residue at the fermentation liquid outlet and yeast outlet, which affects the fermentation quality.
A fermenter structure including a fermenter body, a polyurethane foam insulation sleeve, and a tank support was designed. The fermentation broth outlet is equipped with a DIN union and an arched pipe, while the yeast outlet is triangular. Combined with a rotating cleaning ball and sampling pipeline, the fermentation broth and yeast are fully discharged.
It effectively avoids the residue of fermentation liquid and yeast, and improves the cleaning efficiency of fermentation tanks and the quality of fermentation.
Smart Images

Figure CN224337546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the structure of a fermentation tank for food production and belongs to the field of fermentation tank technology. Background Technology
[0002] Fermentation tanks used for anaerobic fermentation of food are generally cylindrical main bodies made of stainless steel plates. In design and manufacturing, attention should be paid to a tight and reasonable structure to prevent air from entering. They should be able to withstand steam sterilization, have a certain degree of operational flexibility, minimize internal accessories, have strong material and energy transfer performance, and be adjustable to facilitate cleaning, reduce contamination, and be suitable for the production of various foods while reducing energy consumption.
[0003] Existing technologies, such as the food production fermentation tank disclosed in patent publication number CN220745935U, include a fermentation tank body, a sealed lower tank body, and a sealed upper tank body. This food production fermentation tank can accurately detect the oxygen content inside the sealed lower tank body and the sealed upper tank body through a gas detector. The gas inside the sealed lower tank body and the sealed upper tank body is discharged through the action of an exhaust fan, a gas supply pipe, and an exhaust pipe. At the same time, fermentation gas is introduced into the interior through an air inlet pipe and a valve, which improves the quality of food fermentation. The sealing effect at the connection between the sealed lower tank body and the sealed upper tank body is improved through the action of a retaining ring, an installation ring, and a sealing ring.
[0004] The aforementioned fermentation tank has the disadvantage that fermentation liquid or yeast residue is prone to occur at the fermentation liquid outlet and yeast outlet. To address this, we have designed a fermentation tank structure for food production. Utility Model Content
[0005] The purpose of this invention is to provide a fermentation tank structure for food production to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fermentation tank structure for food production, comprising a fermentation tank body, a polyurethane foam insulation sleeve, and a tank support. The polyurethane foam insulation sleeve is fitted onto the tank body of the fermentation tank. The welded portion of the tank support passes through the polyurethane foam insulation sleeve and is welded to the tank body of the fermentation tank. A fermentation liquid outlet is provided at the conical lower part of the fermentation tank body. A DIN connector is installed inside the fermentation liquid outlet. An outlet pipe extending into the inner cavity of the fermentation tank body is installed on the inner side of the DIN connector. A duckbill valve is installed at one end of the outlet pipe, and an arched pipe is connected to the other end of the outlet pipe. A pointed tube is provided at one end of the arched pipe, and the central angle of the arched pipe is 60°. A triangular yeast outlet is installed at the bottom of the conical lower part of the fermentation tank body.
[0007] In the above-mentioned fermentation tank structure for food production, a cleaning port is provided at the middle of the top of the fermentation tank. A cleaning pipe is inserted into the cleaning port, and the other end of the cleaning port extends into the inside of the fermentation tank and is equipped with a rotating cleaning ball.
[0008] In the above-mentioned fermentation tank structure for food production, an overflow valve is installed on the other side of the top of the fermentation tank, an overflow pipe is installed inside the overflow valve, and a pressure gauge connected to a polyurethane foam insulation sleeve is installed at one end of the overflow pipe.
[0009] In the above-mentioned fermentation tank structure for food production, a sampling port is provided on the upper part of the straight cylindrical tank body of the fermentation tank. A sampling pipeline is provided on the inner side of the sampling port. A knob-type sampling tap is installed at one end of the sampling pipeline. A sealing clamp is provided at the connection between the knob-type sampling tap and the sampling pipeline.
[0010] In the above-mentioned fermentation tank structure for food production, a trumpet-shaped elliptical manhole is provided in the middle of the upper part of the straight cylindrical tank body of the fermentation tank.
[0011] In the fermentation tank structure for food production described above, a horizontally oriented yeast conduit is provided at the bottom of the triangular yeast outlet, and a shut-off valve is installed at one end of the yeast conduit.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The fermentation tank structure for food production of this utility model features a DIN union installed inside the fermentation liquid outlet. An outlet pipe extending into the inner cavity of the fermentation tank is installed on the inner side of the DIN union. The other end of the outlet pipe is connected to an arched pipe with a pointed tip at one end. The central angle of the arched pipe is 60°. A triangular yeast outlet is installed at the conical bottom of the fermentation tank. This effectively and fully removes the fermentation liquid and yeast, avoiding residue. Furthermore, the 60° arched design of the arched pipe prevents residual fermentation liquid inside the pipe. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the fermentation tank structure for food production according to this utility model.
[0015] Figure 2 This is a top view schematic diagram of the fermentation tank structure for food production according to this utility model.
[0016] Figure 3 This is an enlarged structural diagram of the sampling port of the fermentation tank used in food production according to this utility model.
[0017] In the diagram: 1. Fermentation tank; 2. Polyurethane foam insulation sleeve; 3. Tank support; 4. Fermentation broth outlet; 5. DIN union; 6. Duckbill valve; 7. Arched pipe; 8. Pointed pipe; 9. Triangular yeast outlet; 10. Liquid outlet pipe; 11. Yeast conduit; 12. Shut-off valve; 13. Trumpet-shaped oval manhole; 14. Cleaning port; 15. Rotating cleaning ball; 16. Cleaning pipeline; 17. Overflow pipe; 18. Pressure gauge; 19. Overflow valve port; 20. Sampling port; 21. Sampling pipeline; 22. Sealing clamp; 23. Knob-type sampling tap. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-3 This utility model provides a technical solution for the structure of a fermentation tank in food production:
[0020] The fermenter includes a fermenter body 1, a polyurethane foam insulation sleeve 2, and a tank support 3. The polyurethane foam insulation sleeve 2 is fitted onto the tank body of the fermenter body 1. The welded part of the tank support 3 passes through the polyurethane foam insulation sleeve 2 and is welded to the tank body of the fermenter body 1. A cleaning port 14 is provided in the middle of the top of the fermenter body 1. A cleaning pipe 16 is inserted into the cleaning port 14. The other end of the cleaning port 14 extends to the inside of the fermenter body 1 and is equipped with a rotating cleaning ball 15. An overflow valve port 19 is installed on the other side of the top of the fermenter body 1. An overflow pipe 17 is installed inside the overflow valve port 19. A pressure gauge 18 connected to the polyurethane foam insulation sleeve 2 is installed at one end of the overflow pipe 17. A trumpet-shaped elliptical manhole 13 is provided in the middle of the upper part of the straight tank body of the fermenter body 1.
[0021] Example 1: A fermentation liquid outlet 4 is opened at the conical lower part of the fermentation tank 1. A DIN union 5 is installed inside the fermentation liquid outlet 4. An outlet pipe 10 extending into the inner cavity of the fermentation tank 1 is installed on the inner side of the DIN union 5. A duckbill valve 6 is installed at one end of the outlet pipe 10. An arched pipe 7 is connected to the other end of the outlet pipe 10. A pointed pipe 8 is provided at one end of the arched pipe 7. The central angle of the arched pipe 7 is 60°.
[0022] It can effectively and fully extract the fermentation liquid, avoiding any residue.
[0023] Example 2: The fermentation tank includes a fermentation tank body 1, a polyurethane foam insulation sleeve 2, and a tank support 3. The polyurethane foam insulation sleeve 2 is fitted onto the tank body of the fermentation tank body 1. The welded part of the tank support 3 passes through the polyurethane foam insulation sleeve 2 and is welded to the tank body of the fermentation tank body 1. A fermentation liquid outlet 4 is opened at the conical lower part of the fermentation tank body 1. A triangular yeast outlet 9 is installed at the bottom of the conical lower part of the fermentation tank body 1. A horizontally oriented yeast conduit 11 is set at the bottom of the triangular yeast outlet 9. A shut-off valve 12 is installed at one end of the yeast conduit 11. This allows for the complete removal of yeast.
[0024] Example 3: A sampling port 20 is provided on the upper part of the straight cylinder of the fermentation tank 1. A sampling pipeline 21 is provided on the inner side of the sampling port 20. A knob-type sampling tap 23 is installed at one end of the sampling pipeline 21. A sealing clamp 22 is provided at the connection between the knob-type sampling tap 23 and the sampling pipeline 21.
[0025] This allows for real-time sampling of the fermentation broth during the fermentation process.
[0026] 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. A fermentation tank structure for food production, comprising a fermentation tank body (1), a polyurethane foam insulation sleeve (2), and a tank support (3), wherein the polyurethane foam insulation sleeve (2) is fitted onto the tank body of the fermentation tank body (1), and the welded portion of the tank support (3) passes through the polyurethane foam insulation sleeve (2) and is welded to the tank body of the fermentation tank body (1), characterized in that, A fermentation liquid outlet (4) is provided at the conical lower part of the fermentation tank (1). A DIN union (5) is installed inside the fermentation liquid outlet (4). An outlet pipe (10) extending into the inner cavity of the fermentation tank (1) is installed on the inner side of the DIN union (5). A duckbill valve (6) is installed at one end of the outlet pipe (10). An arched pipe (7) is connected to the other end of the outlet pipe (10). A pointed pipe (8) is provided at one end of the arched pipe (7). The central angle of the arched pipe (7) is 60°. A triangular yeast outlet (9) is installed at the bottom of the conical lower part of the fermentation tank (1).
2. The fermentation tank structure for food production according to claim 1, characterized in that: A cleaning port (14) is provided at the middle of the top of the fermentation tank (1). A cleaning pipe (16) is inserted into the cleaning port (14). The other end of the cleaning port (14) extends to the inside of the fermentation tank (1) and is equipped with a rotating cleaning ball (15).
3. The fermentation tank structure for food production according to claim 1, characterized in that: An overflow valve (19) is installed on the other side of the top of the fermentation tank (1). An overflow pipe (17) is installed inside the overflow valve (19). A pressure gauge (18) connected to the polyurethane foam insulation sleeve (2) is installed at one end of the overflow pipe (17).
4. The fermentation tank structure for food production according to claim 1, characterized in that: The fermentation tank (1) has a sampling port (20) on the upper part of the straight tank body. A sampling pipeline (21) is provided on the inner side of the sampling port (20). A knob-type sampling tap (23) is installed at one end of the sampling pipeline (21). A sealing clamp (22) is provided at the connection between the knob-type sampling tap (23) and the sampling pipeline (21).
5. The fermentation tank structure for food production according to claim 1, characterized in that: The fermentation tank (1) has a trumpet-shaped elliptical manhole (13) in the middle of the upper part of the straight tank body.
6. The fermentation tank structure for food production according to claim 1, characterized in that: The bottom end of the triangular yeast outlet (9) is provided with a horizontally oriented yeast conduit (11), and a shut-off valve (12) is installed at one end of the yeast conduit (11).