Food high-temperature steam sterilization device

By using a perforated tray, planetary gear transmission system, and three-way steam injection components, the problems of uneven sterilization and water accumulation in traditional high-temperature steam sterilization devices for food are solved, achieving efficient sterilization and a clean environment for food stacking layers.

CN224670823UActive Publication Date: 2026-08-25HUBEI CHANGE PHARM CO LTD
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Patent Information

Application Number
CN202522162981.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2026-08-25
Estimated Expiration
2035-10-13

AI Technical Summary

Technical Problem

Traditional high-temperature steam sterilization equipment for food suffers from uneven sterilization, insufficient steam penetration, and secondary contamination caused by water accumulation. In particular, it has low sterilization efficiency and poor environmental cleanliness, especially in the deep areas of stacked food and in multi-layer static loading conditions.

Method used

The system employs a perforated tray and planetary gear drive system, combined with a three-way steam injection component and an automatic drainage structure, to achieve full steam coverage, eliminate steam dead zones, and automatically drain water. The planetary gear drives the tray to rotate, ensuring that steam penetrates the food stacking layers evenly, and the condensate is quickly discharged through the drainage valve.

Benefits of technology

It achieves highly efficient sterilization of food stacking layers, eliminates dead zones in steam flow, improves sterilization efficiency and environmental cleanliness, and ensures full steam coverage and rapid drainage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to high temperature steam sterilization device technical field, and disclose a kind of food high temperature steam sterilization device. The food high temperature steam sterilization device, including pot body, sealing cover and carrying shaft, the top of sealing cover is equipped with main exhaust valve and auxiliary exhaust valve, the inner chamber bottom of pot body is equipped with conical frustum protrusion, the bottom of pot body is equipped with motor, and output end extends to the inside of conical frustum protrusion, the device has steam full coverage, eliminate steam dead zone, automatic drainage and the advantages such as efficiency promotion, solve the conventional sterilization pot dependence single direction steam injection, leading to insufficient penetration to the deep area of stacked food, influence sterilization consistency, food is placed in static tray, and multilayer static loading leads to steam flow dead zone, steam is difficult to uniformly penetrate between food stacking layer, leading to sterilization efficiency reduction, sterilization pot bottom waterlogging is easy to breed secondary pollution, and conventional device lacks dynamic drainage structure, influence sterilization environment cleanliness problem.
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Description

Technical Field

[0001] This utility model relates to the technical field of high-temperature steam sterilization devices, specifically a high-temperature steam sterilization device for food. Background Technology

[0002] In the food processing industry, high-temperature steam sterilization is a core process for ensuring food safety. Traditional sterilizers rely on unidirectional steam injection, resulting in temperature dead zones within the sterilization chamber. This leads to insufficient penetration, especially into deeper areas of stacked food, affecting sterilization consistency. Furthermore, food placed on static trays and multiple layers of static loading create dead zones for steam flow, making it difficult for steam to penetrate evenly between food layers, thus reducing sterilization efficiency. Water accumulation at the bottom of the sterilizer can easily lead to secondary contamination, and traditional devices lack dynamic drainage structures, affecting the cleanliness of the sterilization environment.

[0003] In summary, a high-temperature steam sterilization device for food is proposed to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-temperature steam sterilization device for food, which has the advantages of full steam coverage, elimination of steam dead zones, automatic drainage, and improved efficiency. It solves the problems of traditional sterilizers relying on unidirectional steam injection, resulting in insufficient penetration into the deep areas of stacked food, affecting sterilization consistency; food placed in a static tray, with multiple layers of static loading causing steam flow dead zones, making it difficult for steam to penetrate evenly between food stacks, leading to reduced sterilization efficiency; water accumulation at the bottom of the sterilizer easily breeds secondary pollution; and the lack of a dynamic drainage structure in traditional devices, affecting the cleanliness of the sterilization environment.

[0006] Two technical solutions

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A food high-temperature steam sterilization device includes a pot body, a sealing cover and a mounting shaft. The top of the sealing cover is provided with a main exhaust valve and an auxiliary exhaust valve. The bottom of the inner cavity of the pot body is provided with a frustum-shaped protrusion. The bottom of the pot body is provided with a motor whose output end extends into the interior of the frustum-shaped protrusion. The top of the motor is fixedly connected with an inner octagonal sleeve that communicates with the top of the frustum-shaped protrusion and is rotatably connected to the frustum-shaped protrusion. The top of the frustum-shaped protrusion is provided with circular holes arranged in a ring array and located around the inner octagonal sleeve. The inner cavity sidewall of the pot body is provided with a three-way steam injection assembly extending to its outer side. The bottom of the pot body is provided with a drain valve extending to its outer side.

[0008] The lower end of the mounting shaft is an octagonal prism adapted to the inner octagonal sleeve. A planetary disk is rotatably connected to the outer side of the lower end of the mounting shaft. A sun gear located inside the planetary disk is fixedly connected to the outer side of the mounting shaft. Planetary gears arranged in a circular array and meshing with the sun gear are rotatably connected to the inner side of the planetary disk. A mounting sleeve located above the sun gear is rotatably connected to the outer side of the mounting shaft. A mounting plate fitted to the outer side of the mounting sleeve and adapted to the planetary disk is fixedly connected to the bottom of the mounting sleeve. A gear ring extending into the inner side of the planetary disk and meshing with all planetary gears is fixedly connected to the bottom of the mounting plate. Ball-head columns arranged in a circular array and adapted to the circular holes are fixedly connected to the bottom of the planetary disk. Perforated trays arranged vertically and adapted to the pot body are fixedly connected to the outer side of the mounting sleeve. A perforated tray located above the mounting sleeve is fixedly connected to the outer side of the mounting shaft.

[0009] The beneficial effects of this utility model are:

[0010] This high-temperature steam sterilization device for food involves placing food on top of a perforated tray, lifting the mounting shaft to position the tray and food inside the pot, and inserting the ball-head post at the bottom of the planetary disk into the round hole. At this point, the mounting shaft and the inner octagonal sleeve are coaxial. The mounting shaft is then rotated to insert into the inner octagonal sleeve, and the sealing cover is closed. High-temperature steam is injected into the pot through a three-way steam injection assembly. The high-temperature steam is then sprayed onto the perforated tray and food, ensuring complete steam coverage and penetration of the food stacking layers. Simultaneously, the motor drives the mounting shaft to rotate via the inner octagonal sleeve, which in turn drives the perforated tray and sun gear on its outer side to rotate. Since the sun gear and planetary gears are meshed, the planetary gears drive the gear ring, mounting plate, and mounting sleeve to rotate in opposite directions. The mounting sleeve drives the perforated tray on its outer side to rotate synchronously, achieving synchronous rotation of the lower and middle perforated trays and reverse rotation of the top perforated tray. This disturbs the airflow inside the pot, eliminates the dead zone of steam flow in the multi-layer perforated trays, and allows steam to penetrate the food stacking layers evenly, thereby improving sterilization efficiency. The condensate formed during this process is quickly concentrated at the bottom of the pot by the frustum-shaped protrusions and discharged through the steam trap. It has the advantages of full steam coverage, elimination of steam dead zones, automatic drainage, and improved efficiency.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the three-dimensional steam injection assembly includes an annular tube, a vertical tube, a curved tube, and air holes. The inner wall of the pot body is provided with annular tubes symmetrically distributed vertically. Vertical tubes are arranged in a ring array and connected to the annular tubes. A curved tube is provided on the outer side of the lower annular tube, extending to and connected to the outer side of the pot body. Air holes are arranged in a ring array and inclined downward at 30° on the inner side of the upper annular tube. Air holes are arranged vertically at equal intervals on the opposite side of the vertical tubes and facing the axis of the pot body. Air holes are arranged in a ring array and inclined upward at 30° on the inner side of the lower annular tube.

[0013] The beneficial effect of adopting the above-mentioned further solution is that high-temperature steam is injected into the annular pipe and the vertical pipe through the curved pipe, and then sprayed onto the perforated tray and food through the air holes. The air holes on the inner side of the upper annular pipe are angled downward at 30°, covering the top of the pot to the upper middle layer space. The air holes on the opposite side of the vertical pipe face the axis of the pot and penetrate the food stacking layer. The air holes on the inner side of the lower annular pipe are angled upward at 30°, covering the bottom of the pot to the lower middle layer space, so as to achieve full coverage of steam and penetration of the food stacking layer.

[0014] Furthermore, a crossbar handle is fixedly connected to the top of the mounting shaft.

[0015] The advantage of adopting the above-mentioned further solution is that the crossbar handle facilitates the lifting and lowering of the mounting shaft. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the assembly of this utility model;

[0018] Figure 3 This is a cross-sectional view of the planetary disk and mounting sleeve structure of this utility model;

[0019] Figure 4 This is a top sectional view of the planetary disk of this utility model.

[0020] In the diagram: 1. Pot body; 1a. Frustum-shaped protrusion; 2. Sealing cover; 2a. Exhaust valve; 2b. Auxiliary exhaust valve; 3. Motor; 4. Inner octagonal sleeve; 5. Circular hole; 6. Mounting shaft; 7. Three-way steam injection assembly; 701. Annular pipe; 702. Vertical pipe; 703. Bend; 704. Vent; 8. Steam trap; 9. Planetary disk; 10. Sun gear; 11. Planetary gears; 12. Mounting sleeve; 13. Hanging plate; 14. Gear ring; 15. Ball head column; 16. Perforated tray; 17. Crossbar handle. Detailed Implementation

[0021] 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.

[0022] In the embodiments, by Figure 1-4 Provided is a high-temperature steam sterilization device for food. The present invention includes a pot body 1, a sealing cover 2 and a mounting shaft 6. The top of the sealing cover 2 is provided with a main exhaust valve 2a and an auxiliary exhaust valve 2b. The bottom of the inner cavity of the pot body 1 is provided with a frustum-shaped protrusion 1a. The bottom of the pot body 1 is provided with a motor 3 whose output end extends into the inside of the frustum-shaped protrusion 1a. The top of the motor 3 is fixedly connected to an inner octagonal sleeve 4 that communicates with and is rotatably connected to the top of the frustum-shaped protrusion 1a. The top of the frustum-shaped protrusion 1a is provided with circular holes 5 arranged in a ring array and located around the inner octagonal sleeve 4. The inner cavity sidewall of the pot body 1 is provided with a three-way steam injection assembly 7 extending to its outer side. The bottom of the pot body 1 is provided with a drain valve 8 extending to its outer side.

[0023] The lower end of the mounting shaft 6 is an octagonal prism adapted to the inner octagonal sleeve 4. The outer side of the lower end of the mounting shaft 6 is rotatably connected to a planetary disk 9. The outer side of the mounting shaft 6 is fixedly connected to a sun gear 10 located inside the planetary disk 9. The inner side of the planetary disk 9 is rotatably connected to planetary gears 11 arranged in a ring array and all meshing with the sun gear 10. The outer side of the mounting shaft 6 is rotatably connected to a mounting sleeve 12 located above the sun gear 10. The bottom of the mounting sleeve 12 is fixedly connected to a mounting plate 13 fitted on the outer side of the mounting shaft 6 and adapted to the planetary disk 9. The bottom of the mounting plate 13 is fixedly connected to a gear ring 14 extending into the interior of the planetary disk 9 and meshing with the planetary gears 11. The bottom of the planetary disk 9 is fixedly connected to a ball head column 15 arranged in a ring array and adapted to the round hole 5. The outer side of the mounting sleeve 12 is fixedly connected to a perforated tray 16 arranged vertically and adapted to the pot body 1. The outer side of the mounting shaft 6 is fixedly connected to a perforated tray 16 located above the mounting sleeve 12.

[0024] The three-way steam injection assembly 7 includes an annular pipe 701, a vertical pipe 702, a curved pipe 703, and vents 704. The inner wall of the pot body 1 is provided with annular pipes 701 arranged symmetrically in the upper and lower parts. Vertical pipes 702 are arranged in a ring array and connected to the annular pipes 701. A curved pipe 703 is provided on the outer side of the lower annular pipe 701, extending to the outer side of the pot body 1 and connected to it. Vents 704 are arranged in a ring array and inclined downward at 30° on the inner side of the upper annular pipe 701. Vents 704 are arranged vertically at equal intervals and facing the axis of the pot body 1 on the opposite side of the vertical pipes 702. Vents 704 are arranged in a ring array and inclined upward at 30° on the inner side of the lower annular pipe 701.

[0025] A crossbar handle 17 is fixedly connected to the top of the shaft 6.

[0026] Working principle:

[0027] Step 1: Place the food on top of the perforated tray 16, lift the mounting shaft 6 using the crossbar handle 17 to place the perforated tray 16 and the food inside the pot body 1, so that the ball head 15 at the bottom of the planetary disk 9 is inserted into the round hole 5. At this time, the mounting shaft 6 and the inner octagonal sleeve 4 are coaxial. Then rotate the mounting shaft 6 to insert it into the inner octagonal sleeve 4, and close the sealing cover 2.

[0028] Step 2: High-temperature steam is injected into the annular pipe 701 and the vertical pipe 702 through the bent pipe 703, and then sprayed onto the perforated tray 16 and the food through the air holes 704. The air holes 704 on the inner side of the upper annular pipe 701 are angled downward at 30°, covering the top of the pot body 1 to the upper middle layer space. The air holes 704 on the opposite side of the vertical pipe 702 face the axis of the pot body 1 and penetrate the food stacking layer. The air holes 704 on the inner side of the lower annular pipe 701 are angled upward at 30°, covering the bottom of the pot body 1 to the lower middle layer space, so that the steam can fully cover and penetrate the food stacking layer.

[0029] Step 3: In the second step, the motor 3 drives the mounting shaft 6 to rotate through the inner octagonal sleeve 4. The mounting shaft 6 then drives the perforated tray 16 and the sun gear 10 on its outer side to rotate. Since the sun gear 10 and the planet gears 11 are meshed, the planet gears 11 drive the gear ring 14, the hanging plate 13 and the mounting sleeve 12 to rotate in opposite directions. The mounting sleeve 12 drives the perforated tray 16 on its outer side to rotate synchronously, so that the lower and middle perforated trays 16 rotate synchronously and the top perforated tray 16 rotates in opposite directions. This disturbs the airflow inside the pot body 1, eliminates the dead zone of steam flow in the multi-layer perforated trays 16, and allows steam to penetrate the food stacking layer evenly, thereby improving the sterilization efficiency. During this process, the condensate formed by the frustum-shaped protrusion 1a causes the condensate to quickly concentrate at the bottom of the pot body 1 and be discharged through the drain valve 8.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature steam sterilization device for food, comprising a pot body (1), a sealing cover (2), and a mounting shaft (6), wherein the top of the sealing cover (2) is provided with a main exhaust valve (2a) and an auxiliary exhaust valve (2b), characterized in that: The bottom of the inner cavity of the pot body (1) is provided with a frustum-shaped protrusion (1a). The bottom of the pot body (1) is provided with a motor (3) whose output end extends into the interior of the frustum-shaped protrusion (1a). The top of the motor (3) is fixedly connected to an inner octagonal sleeve (4) that communicates with the top of the frustum-shaped protrusion (1a) and is rotatably connected to the frustum-shaped protrusion (1a). The top of the frustum-shaped protrusion (1a) is provided with round holes (5) arranged in a ring array and located around the inner octagonal sleeve (4). The inner cavity sidewall of the pot body (1) is provided with a three-way steam injection assembly (7) extending to its outer side. The bottom of the pot body (1) is provided with a drain valve (8) extending to its outer side. The lower end of the mounting shaft (6) is an octagonal prism adapted to the inner octagonal sleeve (4). A planetary disk (9) is rotatably connected to the outer side of the lower end of the mounting shaft (6). A sun gear (10) located inside the planetary disk (9) is fixedly connected to the outer side of the mounting shaft (6). Planetary gears (11) arranged in a ring array and meshing with the sun gear (10) are rotatably connected to the inner side of the planetary disk (9). A mounting sleeve (12) located above the sun gear (10) is rotatably connected to the outer side of the mounting shaft (6). A sleeve fitted onto the mounting shaft is fixedly connected to the bottom of the mounting sleeve (12). (6) A mounting plate (13) on the outside and adapted to the planetary disk (9), the bottom of the mounting plate (13) is fixedly connected to a gear ring (14) extending into the interior of the planetary disk (9) and meshing with the planetary gears (11), the bottom of the planetary disk (9) is fixedly connected to a ball head column (15) arranged in a ring array and adapted to the round hole (5), the outside of the mounting sleeve (12) is fixedly connected to a perforated tray (16) arranged vertically and adapted to the pot body (1), and the outside of the mounting shaft (6) is fixedly connected to a perforated tray (16) located above the mounting sleeve (12).

2. The food high-temperature steam sterilization device according to claim 1, characterized in that: The three-way steam injection assembly (7) includes an annular tube (701), a vertical tube (702), a curved tube (703), and air holes (704). The inner wall of the pot body (1) is provided with annular tubes (701) arranged symmetrically in the upper and lower parts. Vertical tubes (702) are arranged in a ring array and connected to the annular tubes (701). A curved tube (703) extending to the outside of the lower annular tube (701) and connected to it is provided. Air holes (704) arranged in a ring array and inclined downward at 30° are opened on the inner side of the upper annular tube (701). Air holes (704) arranged vertically at equal intervals and facing the axis of the pot body (1) are opened on the opposite side of the vertical tube (702). Air holes (704) arranged in a ring array and inclined upward at 30° are opened on the inner side of the lower annular tube (701).

3. The food high-temperature steam sterilization device according to claim 1, characterized in that: A crossbar handle (17) is fixedly connected to the top of the mounting shaft (6).