Fruit and vegetable juice sterilization tank structure with self-cleaning function
By integrating sterilization and self-cleaning functions into the fruit and vegetable juice sterilization tank structure, the problem of residue on the inner wall of the sterilization tank is solved by using spiral steam heating and a self-cleaning mechanism. This achieves uniform heating and automated cleaning of the fruit and vegetable juice, improving production efficiency and hygiene safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 陕西大窑饮品有限公司
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
During the high-temperature or ultrasonic sterilization process, the inner wall of the existing fruit and vegetable juice sterilization tank is prone to residual fruit and vegetable juice or impurities. Long-term accumulation may lead to bacterial growth. Traditional cleaning methods are cumbersome and inefficient, and there are problems with cleaning dead corners and incomplete cleaning.
A tank structure integrating sterilization and self-cleaning functions was designed. It uses a spiral steam heating pipeline for uniform heating, and a sun gear and planetary gear transmission system to drive the stirring rod to rotate. It is equipped with a high-pressure nozzle and stirring blades to achieve automatic and thorough rinsing. It uses a food-grade stainless steel inner liner and a high-pressure water supply system for cleaning.
It achieves uniform heating and sterilization of fruit and vegetable juices and automated cleaning, improving production efficiency and hygiene safety, and avoiding cleaning dead corners and the tediousness of manual operation.
Smart Images

Figure CN224206132U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fruit and vegetable juice production equipment, and in particular to a fruit and vegetable juice sterilization tank structure with self-cleaning function. Background Technology
[0002] Existing fruit and vegetable juice sterilization tanks often retain juice or impurities on their inner walls during high-temperature or ultrasonic sterilization processes. Long-term accumulation of these residues can lead to bacterial growth, affecting the hygiene and safety of subsequent products. Traditional cleaning methods require manual disassembly or machine shutdown for rinsing, which is cumbersome and inefficient. While some equipment incorporates simple rinsing mechanisms, issues such as blind spots and incomplete cleaning remain. Therefore, we propose an integrated tank structure that combines sterilization and self-cleaning functions to improve production efficiency and hygiene safety. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-cleaning fruit and vegetable juice sterilization tank structure.
[0004] To address the problems existing in the prior art, the present invention adopts the following technical solution:
[0005] A fruit and vegetable juice sterilization tank structure with self-cleaning function includes a tank body, which is composed of an outer tank body, an inner liner fixedly installed on the inner wall of the outer tank body, and a cover plate fixedly installed on the upper surface of the outer tank body. An interlayer is formed between the inner liner and the outer tank body. A heating mechanism is provided inside the interlayer, a self-cleaning mechanism is provided inside the inner liner, and a drive structure that can drive the self-cleaning mechanism to rotate is provided inside the cover plate.
[0006] The self-cleaning mechanism includes a stirring rod, high-pressure nozzles and stirring blades fixedly mounted on the surface of the stirring rod in a circumferential array, and a water supply pipe fixedly mounted on the upper surface of the cover plate by a support frame. The stirring rod has a hollow structure, and there are three stirring rods. The stirring rods are rotatably mounted on the lower surface of the cover plate, and the upper end of the stirring rod extends to the outside of the cover plate and is rotatably connected to the lower end of the water supply pipe through a rotary joint.
[0007] The drive structure includes a mounting cavity formed in the inner wall of the cover plate, a sun gear rotatably mounted at the center of the mounting cavity, planetary gears fixedly mounted on the surface of the stirring rod, an internal gear ring rotatably mounted on the inner wall of the mounting cavity, and a motor fixedly mounted on the upper surface of the cover plate for driving the sun gear to rotate.
[0008] Preferably, the heating mechanism includes a spiral steam heating pipe wound around the outer surface of the inner liner, and the spiral steam heating pipe is connected to an external high-temperature steam generator through a flange interface.
[0009] Preferably, the water supply pipe is connected to an external high-pressure water supply system via a quick-release connector.
[0010] Preferably, the sun gear meshes with the planetary gears for transmission, and the planetary gears mesh with the internal gear ring for transmission.
[0011] Preferably, the upper surface of the cover plate is provided with a fruit and vegetable juice inlet with a sealing cap, and the lower end of the fruit and vegetable juice inlet extends into the inner liner.
[0012] Preferably, the stirring rod is located inside the inner liner, and the inner liner is made of food-grade stainless steel.
[0013] Preferably, a three-way pipe is fixedly installed at the bottom of the tank, one end of which extends into the interior of the inner liner, and a drain pipe and a liquid drain pipe are fixedly installed at the other two ends of the three-way pipe, respectively, with valves provided on the surface of both the drain pipe and the liquid drain pipe.
[0014] Preferably, the inner bottom wall of the inner liner is conical.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] The spiral steam heating pipes create a uniform heat field in the jacket, indirectly heating the juice to 85-95℃ through the food-grade stainless steel inner liner. Then, the motor drives the sun gear to make the three stirring rods rotate, which not only improves the uniformity of heating of the fruit and vegetable juice, but also enables automatic cleaning without dead angles by forming a rotating jet stream through the high-pressure nozzle. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an undue limitation. In the drawings:
[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0019] Figure 2 This is a cross-sectional view of the present invention;
[0020] Figure 3 This is a top sectional view of the drive structure of this utility model;
[0021] Figure 4 This is a three-dimensional schematic diagram of the stirring rod of this utility model;
[0022] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle.
[0023] The components in the diagram are numbered as follows: 10 Outer tank, 11 Inner liner, 12 Cover plate, 13 Jacket, 20 Stirring rod, 21 High-pressure nozzle, 22 Stirring blade, 23 Water supply pipe, 30 Sun gear, 31 Planetary gear, 32 Internal gear ring, 33 Motor, 40 Spiral steam heating pipe, 50 Fruit and vegetable juice inlet, 60 T-connector, 61 Sewage pipe, 62 Liquid drain pipe. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] Please see Figure 1-5 This utility model provides a technical solution: a fruit and vegetable juice sterilization tank structure with self-cleaning function, including a tank body, which is composed of an outer tank body 10, an inner liner 11 fixedly installed on the inner wall of the outer tank body 10, and a cover plate 12 fixedly installed on the upper surface of the outer tank body 10. An interlayer 13 is formed between the inner liner 11 and the outer tank body 10. A heating mechanism is provided inside the interlayer 13. The heating mechanism includes a spiral steam heating pipe 40 spirally wound on the outer surface of the inner liner 11. The spiral steam heating pipe 40 is connected to an external high-temperature steam generator through a flange interface. The upper surface of the cover plate 12 is provided with a fruit and vegetable juice inlet 50 with a sealing cap. The lower end of the fruit and vegetable juice inlet 50 extends into the inner liner 11. (A temperature sensor and a liquid level sensor are embedded in the inner wall of the inner liner 11. A controller is installed on the surface of the outer tank body 10. A pressure relief valve is provided in the interlayer 13, which is not shown in the figure).
[0026] The fruit and vegetable juice enters the inner tank 11 through the fruit and vegetable juice inlet 50. High-temperature steam circulates in the jacket 13 through the spiral steam heating pipe 40, indirectly heating the fruit and vegetable juice in the inner tank 11 to achieve pasteurization (usually maintained at 85-95℃). The temperature sensor monitors the juice temperature in real time, and the liquid level sensor detects the volume.
[0027] The inner liner 11 is equipped with a self-cleaning mechanism, which includes a stirring rod 20, a high-pressure nozzle 21 and a stirring blade 22 fixedly mounted on the surface of the stirring rod 20 in a circumferential array, and a water pipe 23 fixedly mounted on the upper surface of the cover plate 12 through a support frame. The inner liner 11 is made of food-grade stainless steel.
[0028] The stirring rod 20 has a hollow structure, and there are three stirring rods 20. The stirring rods 20 are rotatably mounted on the lower surface of the cover plate 12 and are located inside the inner liner 11. The upper end of the stirring rod 20 extends to the outside of the cover plate 12 and is rotatably connected to the lower end of the water supply pipe 23 through a rotary joint. The water supply pipe 23 is connected to an external high-pressure water supply system through a quick-release joint. The high-pressure nozzle 21 at the bottom of the stirring rod 20 is set with the water spray end facing downward, the high-pressure nozzle 21 at the top of the stirring rod 20 is set with the water spray end facing upward, and the high-pressure nozzle 21 in the middle of the stirring rod 20 is set with the water spray end horizontally.
[0029] The cover plate 12 has an internal drive structure that drives the self-cleaning mechanism to rotate. The drive structure includes an installation cavity on the inner wall of the cover plate 12, a sun gear 30 rotatably mounted at the center of the installation cavity, three planetary gears 31 fixedly mounted on the surface of the stirring rod 20, an inner gear ring 32 rotatably mounted on the inner wall of the installation cavity, and a motor 33 fixedly mounted on the upper surface of the cover plate 12 to drive the sun gear 30 to rotate. The sun gear 30 meshes with the planetary gears 31 for transmission, and the planetary gears 31 mesh with the inner gear ring 32 for transmission. The motor 33 drives the sun gear 30 to rotate. The meshing transmission between the sun gear 30 and the planetary gears 31 can drive the three planetary gears 31 to rotate. At the same time, the planetary gears 31 mesh with the inner gear ring 32 to form a differential motion, causing the stirring rod 20 to rotate. This can stir the fruit and vegetable juice in the inner liner 11 and make it heat evenly.
[0030] When cleaning the inner liner 11, the external water supply system delivers cleaning fluid to the hollow stirring rod 20 through the water pipe 23. The fluid is then sprayed through the circumferential array high-pressure nozzles 21 to form a multi-directional jet stream that covers the entire inner wall of the inner liner 11. At the same time, the sprayed cleaning fluid can also rinse the stirring rod 20 and the stirring blades 22. The rotating stirring blades 22 can also stir the water and generate a flow around it.
[0031] A three-way pipe 60 is fixedly installed at the bottom of the tank. One end of the three-way pipe 60 extends into the interior of the inner liner 11. The inner bottom wall of the inner liner 11 is set in a conical shape. The other two ends of the three-way pipe 60 are respectively fixedly installed with a drain pipe 61 and a drain pipe 62. Valves are provided on the surface of both the drain pipe 62 and the drain pipe 61. The wastewater after cleaning can be discharged using the drain pipe 61, and the fruit and vegetable juice in the inner liner 11 can be discharged using the drain pipe 62.
[0032] Specifically, the working principle and operation method of this utility model are as follows:
[0033] Heat conduction control: External high-temperature steam circulates in the jacket 13 through the spiral steam heating pipe 40, indirectly heating the food-grade stainless steel inner tank 11, raising the temperature of the fruit and vegetable juice to 85-95℃. The temperature sensor feeds back data to the controller in real time, which in turn links the steam generator to adjust the heat input to ensure precise temperature control. The liquid level sensor monitors the capacity to prevent overflow.
[0034] Dynamic stirring enhances efficiency: The motor 33 drives the sun gear 30, which in turn meshes with the planetary gear 31 and the internal gear ring 32 to drive the three stirring rods 20 to rotate simultaneously. The stirring blades 22 stir the juice, eliminate temperature stratification, and improve the uniformity of sterilization.
[0035] High-pressure jet cleaning: The external high-pressure water supply system injects cleaning fluid into the hollow stirring rod 20 through the quick-release water pipe 23. The circumferential array of high-pressure nozzles 21 rotates with the stirring rod 20 to form multi-directional turbulence, covering the entire inner wall and dead corners of the inner tank 11. After cleaning, the wastewater is quickly discharged through the drain pipe 61.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and concept of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A fruit and vegetable juice sterilization tank structure with self-cleaning function, comprising a tank body, the tank body being composed of an outer tank body (10), an inner liner (11) fixedly installed on the inner wall of the outer tank body (10), and a cover plate (12) fixedly installed on the upper surface of the outer tank body (10), characterized in that: A sandwich (13) is formed between the inner liner (11) and the outer tank (10). A heating mechanism is provided inside the sandwich (13), a self-cleaning mechanism is provided inside the inner liner (11), and a drive structure that can drive the self-cleaning mechanism to rotate is provided inside the cover plate (12). The self-cleaning mechanism includes a stirring rod (20), a high-pressure nozzle (21) and a stirring blade (22) fixedly mounted on the surface of the stirring rod (20) in a circumferential array, and a water supply pipe (23) fixedly mounted on the upper surface of the cover plate (12) by a support frame. The stirring rod (20) is a hollow structure, and there are three stirring rods (20). The stirring rods (20) are rotatably mounted on the lower surface of the cover plate (12), and the upper end of the stirring rods (20) extends to the outside of the cover plate (12) and is rotatably connected to the lower end of the water supply pipe (23) through a rotary joint. The drive structure includes an installation cavity opened in the inner wall of the cover plate (12), a sun gear (30) rotatably installed in the center of the installation cavity, planetary gears (31) fixedly installed on the surface of the stirring rod (20), an inner gear ring (32) rotatably installed in the inner wall of the installation cavity, and a motor (33) fixedly installed on the upper surface of the cover plate (12) for driving the sun gear (30) to rotate.
2. The fruit and vegetable juice sterilization tank structure with self-cleaning function according to claim 1, characterized in that: The heating mechanism includes a spiral steam heating pipe (40) spirally wound around the outer surface of the inner liner (11), and the spiral steam heating pipe (40) is connected to an external high-temperature steam generator through a flange interface.
3. The fruit and vegetable juice sterilization tank structure with self-cleaning function according to claim 1, characterized in that: The water supply pipe (23) is connected to an external high-pressure water supply system via a quick-release connector.
4. The fruit and vegetable juice sterilization tank structure with self-cleaning function according to claim 1, characterized in that: The sun gear (30) meshes with the planet gear (31) for transmission, and the planet gear (31) meshes with the internal gear ring (32) for transmission.
5. The fruit and vegetable juice sterilization tank structure with self-cleaning function according to claim 1, characterized in that: The upper surface of the cover plate (12) is provided with a fruit and vegetable juice inlet (50) with a sealing cap, and the lower end of the fruit and vegetable juice inlet (50) extends into the inner liner (11).
6. The fruit and vegetable juice sterilization tank structure with self-cleaning function according to claim 1, characterized in that: The stirring rod (20) is located inside the inner liner (11), and the inner liner (11) is made of food-grade stainless steel.
7. The fruit and vegetable juice sterilization tank structure with self-cleaning function according to claim 1, characterized in that: A three-way pipe (60) is fixedly installed at the bottom of the tank. One end of the three-way pipe (60) extends into the interior of the inner liner (11). The other two ends of the three-way pipe (60) are respectively fixedly installed with a drain pipe (61) and a liquid drain pipe (62). Valves are provided on the surface of both the liquid drain pipe (62) and the drain pipe (61).
8. The fruit and vegetable juice sterilization tank structure with self-cleaning function according to claim 1, characterized in that: The inner bottom wall of the inner liner (11) is set in a conical shape.