A low-temperature steam cooking device
By introducing a dual stirring mechanism into the low-temperature steam cooking equipment, the problem of uneven heating of fats is solved by utilizing the rotating shaft and slip ring to drive the spiral stirring blades and the synergistic effect of the stirring blades, thus achieving uniform heating and good separation of oils.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JITENG BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-30
Smart Images
Figure CN224430547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil processing technology, specifically to a low-temperature steam cooking device. Background Technology
[0002] Oil processing refers to the process of extracting, refining, and modifying oils from animal and plant raw materials. It is widely used in food, chemical, and pharmaceutical fields. The core process of oil processing includes raw material pretreatment, oil extraction, refining, and modification. The process details vary depending on the raw materials and uses. Oil processing is a multidisciplinary field that requires the selection of appropriate processes based on raw material characteristics, product requirements, and techno-economic factors, while also taking into account food safety and environmental protection. Low-temperature steam cooking equipment is a cooking tool that uses low-temperature steam to precisely heat fats, which can reduce the damage of high temperatures to oil quality and increase oil yield.
[0003] In some existing low-temperature steam cooking equipment, when cooking fats in oil processing, steam is generated by a steam generator and introduced into the outside or jacket of the cooking container through a pipe. The material is indirectly heated through heat conduction. Some equipment uses a motor-driven agitator to ensure that the material is heated evenly, and the condensate is discharged through the drain outlet.
[0004] Existing low-temperature steam cooking equipment has the following problems: when cooking fats during oil processing, the mixing structure is simple and the temperature is uneven, which leads to poor oil separation. Therefore, we propose a low-temperature steam cooking equipment. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a low-temperature steam cooking device. When cooking fats during oil processing, the device uses double stirring to ensure that the fats are heated evenly, thus avoiding poor oil separation and effectively solving the problems in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature steam cooking device, comprising an outer cylinder, an inner cylinder inside the outer cylinder, a steel pipe between the inner wall of the outer cylinder and the outer arc surface of the inner cylinder, and uniformly distributed air holes on the surface of the steel pipe, and also including a stirring mechanism;
[0007] The stirring mechanism includes a protective cylinder, a slip ring, a rotating shaft, support rods, bearings, spiral stirring blades, and stirring blades. The bottom wall of the inner cylinder is equipped with a protective cylinder, and a rotating shaft is rotatably connected to the center of the bottom wall of the inner cylinder. The lower side of the rotating shaft is located inside the protective cylinder, and a slip ring is rotatably connected to the inner wall of the protective cylinder. A bearing is fixedly sleeved on the outer wall of the upper side of the rotating shaft. Support rods are fixedly sleeved and connected to the outer surface of the upper side of the slip ring and the outer surface of the bearing, respectively. Uniformly distributed spiral stirring blades are fixedly connected between the inner sides of the two support rods, and uniformly distributed stirring blades are fixedly sleeved on the outer surface of the rotating shaft. During the cooking of fats in the oil processing, the double stirring ensures that the fat is heated evenly, avoiding poor oil separation.
[0008] Furthermore, a microcontroller is installed on the outside of the outer cylinder. The input terminal of the microcontroller is electrically connected to an external power source to provide electrical connections for various electrical appliances.
[0009] Furthermore, the stirring mechanism also includes a first sealing bearing and a second sealing bearing. The first sealing bearing is provided between the upper side of the inner wall of the protective cylinder and the lower side of the outer wall of the slip ring. The upper side of the inner wall of the protective cylinder is fixedly connected to the outer wall of the first sealing bearing, and the lower side of the outer wall of the slip ring is fixedly connected to the inner wall of the first sealing bearing. The second sealing bearing is provided between the upper side of the inner wall of the slip ring and the lower side of the outer wall of the rotating shaft. The upper side of the inner wall of the slip ring is fixedly connected to the outer wall of the second sealing bearing, and the lower side of the outer wall of the rotating shaft is fixedly connected to the inner wall of the second sealing bearing, thus providing a seal.
[0010] Furthermore, the stirring mechanism also includes a rotating column, a first bevel gear, a second bevel gear, and a bevel gear ring. The rotating column is rotatably connected to the inner wall of the protective cylinder. The first bevel gear is fixedly connected to the right end of the rotating column. The second bevel gear is fixedly sleeved on the outer wall of the rotating shaft located inside the protective cylinder. The bevel gear ring is fixedly sleeved on the outer wall of the lower end of the slip ring. The second bevel gear and the bevel gear ring are both meshed with the first bevel gear, providing a rotatable connection.
[0011] Furthermore, the stirring mechanism also includes a motor. The lower end of the outer cylinder is equipped with a motor, the upper end of the motor's output shaft is fixedly connected to the lower end of the rotating shaft, and the input end of the motor is electrically connected to the output end of the microcontroller to provide stirring drive.
[0012] Furthermore, a lid is hinged to the upper edge of the outer cylinder via a hinge. A temperature sensor is provided at the upper end of the lid. The probe end of the temperature sensor extends into the interior of the inner cylinder. The temperature sensor is bidirectionally electrically connected to a microcontroller for easy temperature monitoring.
[0013] Furthermore, an inlet pipe is provided at the water inlet on the upper side of the outer wall of the inner cylinder, an outlet pipe is provided at the water outlet on the lower side of the outer wall of the inner cylinder, and a condensate drain pipe is provided at the condensate drain outlet on the lower side of the outer wall of the outer cylinder to facilitate drainage.
[0014] Furthermore, a steam generator is provided on the outside of the outer cylinder. The steam outlet at the upper end of the steam generator is connected to the upper end of the steel pipe. A steam trap is connected in series at the lower end of the steel pipe. The input end of the steam generator is electrically connected to the output end of the microcontroller to provide heating.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This low-temperature steam cooking equipment has the following advantages:
[0016] Driven by the motor, the rotating shaft drives the stirring blades to stir the center of the inner cylinder, achieving primary stirring. When the rotating shaft rotates, the slip ring is driven to rotate counterclockwise through bevel gear two, bevel gear one, and bevel gear ring. The slip ring, through the support rod and bearing, drives the spiral stirring blades to rotate counterclockwise to stir the edge of the inner cylinder, achieving secondary stirring. Furthermore, through the synergistic action of the spiral stirring blades and the stirring blades, large pieces of oil are heated evenly in a low-temperature steam environment. During the cooking of fats in oil processing, the double stirring ensures that the fat is heated evenly, preventing oil separation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the left side cross-sectional structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the protective cylinder of this utility model.
[0021] In the diagram: 1 Outer cylinder, 2 Inner cylinder, 3 Stirring mechanism, 301 Motor, 302 Protective cylinder, 303 Rotating column, 304 Bevel gear I, 305 Bevel gear II, 306 Bevel gear ring, 307 Sealed bearing I, 308 Slip ring, 309 Sealed bearing II, 310 Rotating shaft, 311 Support rod, 312 Bearing, 313 Spiral stirring blade, 314 Stirring blade, 4 Bucket lid, 5 Inlet pipe, 6 Outlet pipe, 7 Steel pipe, 8 Steam generator, 9 Steam trap, 10 Condensate drain pipe, 11 Temperature sensor, 12 Microcontroller. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4 This embodiment provides a technical solution: a low-temperature steam cooking device, including an outer cylinder 1, an inner cylinder 2 inside the outer cylinder 1, a steel pipe 7 (the steel pipe 7 is spirally wound between the inner wall of the outer cylinder 1 and the outer arc surface of the inner cylinder 2) between the inner wall of the outer cylinder 1 and the outer arc surface of the inner cylinder 2, the surface of the steel pipe 7 having uniformly distributed air holes, and a stirring mechanism 3. A microcontroller 12 is installed outside the outer cylinder 1, the input end of the microcontroller 12 is electrically connected to an external power source, and a lid 4 is hinged to the upper edge of the outer cylinder 1, the upper end of the lid 4 is equipped with a temperature sensor 11, the detection end of the temperature sensor 11 extending into the inner cylinder 2. The inner cylinder 2 has a temperature sensor 11 that is bidirectionally electrically connected to a microcontroller 12. A water inlet pipe 5 is located at the water inlet on the upper side of the outer wall of the inner cylinder 2, and a water outlet pipe 6 is located at the water outlet on the lower side of the outer wall of the inner cylinder 2. A condensate drain pipe 10 is located at the condensate drain outlet on the lower side of the outer wall of the outer cylinder 1. A steam generator 8 is located outside the outer cylinder 1. The steam outlet at the upper end of the steam generator 8 is connected to the upper end of a steel pipe 7. A steam trap 9 is connected in series at the lower end of the steel pipe 7. The input end of the steam generator 8 is electrically connected to the output end of the microcontroller 12. When steaming grease at low temperature, the lid 4 is first opened, and large pieces of grease are placed inside the inner cylinder 2. The grease is then steamed through the water inlet pipe 5. A suitable amount of water is injected into the inner cylinder 2, and then the lid 4 is closed. The steam generator 8 is then activated by the microcontroller 12, generating steam. (A water pump delivers water from the tank to the heat exchanger; electrical energy directly acts on the heating element, which transfers heat to the boiler water. The water is heated to its boiling point and vaporizes, producing steam. As heating continues, the steam pressure gradually increases, heating the inner cylinder 2 through the vent of the steel pipe 7. This indirectly heats the large pieces of grease through the inner cylinder 2. The temperature sensor 11 provides real-time feedback on the temperature inside the inner cylinder 2 and transmits the data to the microcontroller 12, which then adjusts the steam output.) Adjust the volume and stirring speed, maintain the set low temperature, and after steaming, open the lid 4 to remove the meat pieces. The grease inside the inner cylinder 2 is discharged through the water outlet pipe 6. Steam will be discharged through the pores on the surface of the steel pipe 7 and then heat the outer wall of the inner cylinder 2. After the steam heats the inner cylinder 2, it vaporizes to form condensate. The condensate will flow along the inner wall of the outer cylinder 1 and the outer arc surface of the inner cylinder 2 to the bottom wall of the outer cylinder 1, and then be discharged through the condensate discharge pipe 10. When the steel pipe 7 is transporting steam, a small amount of steam will vaporize inside the steel pipe 7 to form condensate. Open the drain valve 9, and the condensate inside the steel pipe 7 will be discharged along the inner wall of the steel pipe 7.
[0024] The stirring mechanism 3 includes a protective cylinder 302, a slip ring 308, a rotating shaft 310, a support rod 311, a bearing 312, a spiral stirring blade 313, and a stirring blade 314. The bottom wall of the inner cylinder 2 is provided with a protective cylinder 302. A rotating shaft 310 is rotatably connected to the center of the bottom wall of the inner cylinder 2. The lower side of the rotating shaft 310 is located inside the protective cylinder 302. A slip ring 308 is rotatably connected to the inner wall of the protective cylinder 302. A bearing 312 is fixedly sleeved on the upper outer wall of the rotating shaft 310. Support rods 311 are fixedly sleeved and connected to the upper outer surface of the slip ring 308 and the outer surface of the bearing 312, respectively. Uniformly distributed spiral stirring blades 313 are fixedly connected between the inner sides of the two support rods 311. Uniformly distributed stirring blades 314 are fixedly sleeved on the outer surface of the rotating shaft 310. The mixing plate 314 and the stirring mechanism 3 also include a first sealing bearing 307 and a second sealing bearing 309. The first sealing bearing 307 is located between the upper side of the inner wall of the protective cylinder 302 and the lower side of the outer wall of the slip ring 308. The upper side of the inner wall of the protective cylinder 302 is fixedly connected to the outer wall of the first sealing bearing 307, and the lower side of the outer wall of the slip ring 308 is fixedly connected to the inner wall of the first sealing bearing 307 (the first sealing bearing 307 is located between the upper side of the inner wall of the protective cylinder 302 and the lower side of the outer wall of the slip ring 308, preventing steam or materials from entering the interior of the protective cylinder 302, while also supporting the horizontal rotation of the slip ring 308). The second sealing bearing 309 is located between the upper side of the inner wall of the slip ring 308 and the lower side of the outer wall of the rotating shaft 310 (the second sealing bearing 309 is located between the upper side of the inner wall of the slip ring 308 and the lower side of the outer wall of the rotating shaft 310). Between the lower side of the outer wall of the rotating shaft 310, to ensure sealing when the rotating shaft 310 rotates vertically and to avoid axial leakage, the upper side of the inner wall of the slip ring 308 is fixedly connected to the outer wall of the second sealing bearing 309, and the lower side of the outer wall of the rotating shaft 310 is fixedly connected to the inner wall of the second sealing bearing 309. The stirring mechanism 3 also includes a rotating column 303, a first bevel gear 304, a second bevel gear 305, and a bevel gear ring 306. The rotating column 303 is rotatably connected to the inner wall of the protective cylinder 302. The first bevel gear 304 is fixedly connected to the right end of the rotating column 303. The second bevel gear 305 is fixedly sleeved on the outer wall of the rotating shaft 310 located inside the protective cylinder 302. The bevel gear ring 306 is fixedly sleeved on the outer wall of the lower end of the slip ring 308. The second bevel gear 305 and the bevel gear ring 306 are both connected to the first bevel gear 304. The stirring mechanism 3 also includes a motor 301. The lower end of the outer cylinder 1 is equipped with the motor 301. The upper end of the output shaft of the motor 301 is fixedly connected to the lower end of the rotating shaft 310. The input end of the motor 301 is electrically connected to the output end of the microcontroller 12. Then, by controlling the microcontroller 12, the motor 301 operates. The output shaft of the motor 301 drives the rotating shaft 310 to rotate. The rotation of the rotating shaft 310 drives the stirring blade 314 to rotate, which in turn stirs the center of the inner cylinder 2. When the rotating shaft 310 rotates, it drives the second bevel gear 305 to rotate. The rotation of the second bevel gear 305 drives the meshing first bevel gear 304 to rotate. The rotation of the first bevel gear 304, through the meshing bevel ring 306, drives the slip ring 308 to rotate counterclockwise.The rotation of slip ring 308 will drive the spiral stirring blade 313 to rotate counterclockwise via support rod 311 and bearing 312. The rotation of spiral stirring blade 313 will stir the edge of the inner cylinder 2. Furthermore, through the synergistic action of spiral stirring blade 313 and stirring blade 314, large pieces of grease are evenly heated in a low-temperature steam environment.
[0025] The working principle of the low-temperature steam cooking equipment provided by this utility model is as follows: When steam cooking oil at a low temperature, first open the lid 4 and put large pieces of oil into the inner cylinder 2. Then, inject an appropriate amount of water into the inner cylinder 2 through the water inlet pipe 5. Then close the lid 4. Next, the steam generator 8 is operated by the microcontroller 12. The steam generator 8 generates steam (the water pump delivers water from the water tank to the heat exchanger, and electrical energy directly acts on the heating tube, which transfers heat to the boiler water. The water is heated to the boiling point and then vaporizes to generate steam). Continuing, the steam pressure gradually increases, heating the inner cylinder 2 through the vent of steel pipe 7, and then indirectly heating the large pieces of grease through the inner cylinder 2. Next, controlled by the microcontroller 12, the motor 301 operates. The output shaft of the motor 301 drives the rotating shaft 310 to rotate, which in turn drives the stirring blade 314 to rotate. The stirring blade 314 stirs the center of the inner cylinder 2. Then, when the rotating shaft 310 rotates, it drives the second bevel gear 305 to rotate, which in turn drives the meshing bevel gear 304 to rotate. The rotation of the first bevel gear 304 then... The meshing conical tooth ring 306 drives the slip ring 308 to rotate counterclockwise. The rotation of the slip ring 308, through the support rod 311 and bearing 312, drives the spiral stirring blade 313 to rotate counterclockwise. The rotation of the spiral stirring blade 313 stirs the edge inside the inner cylinder 2. Through the synergistic action of the spiral stirring blade 313 and the stirring blade 314, large pieces of grease are evenly heated in a low-temperature steam environment. The temperature sensor 11 provides real-time feedback on the temperature inside the inner cylinder 2 and transmits the data to the microcontroller 12. The microcontroller 12 adjusts the steam output and stirring speed to maintain the set low temperature for cooking. After completion, the lid 4 will be opened to remove the meat pieces. The grease inside the inner cylinder 2 will be discharged through the water outlet pipe 6. Steam will be discharged through the pores on the surface of the steel pipe 7 and then heat the outer wall of the inner cylinder 2. After the steam heats the inner cylinder 2, it will vaporize and form condensate. The condensate will flow along the inner wall of the outer cylinder 1 and the outer arc surface of the inner cylinder 2 to the bottom wall of the outer cylinder 1, and then be discharged through the condensate discharge pipe 10. When the steel pipe 7 is transporting steam, a small amount of steam will vaporize inside the steel pipe 7 to form condensate. The steam trap 9 will be opened, and the condensate inside the steel pipe 7 will be discharged along the inner wall of the steel pipe 7.
[0026] It is worth noting that in the above embodiments, the motor 301, steam generator 8, and temperature sensor 11 are disclosed. The motor 301 can be YEJ20.55KW-4P, the steam generator 8 can be LSH-0.3-0.7-M, and the temperature sensor 11 can be C15-M53R. The microcontroller 12 controls the operation of the motor 301, steam generator 8, and temperature sensor 11 using methods commonly used in the prior art.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A low-temperature steam cooking device, comprising an outer cylinder (1), wherein an inner cylinder (2) is provided inside the outer cylinder (1), and a steel pipe (7) is provided between the inner wall of the outer cylinder (1) and the outer arc surface of the inner cylinder (2), wherein uniformly distributed air holes are provided on the surface of the steel pipe (7), characterized in that: It also includes a stirring mechanism (3); The stirring mechanism (3) includes a protective cylinder (302), a slip ring (308), a rotating shaft (310), a support rod (311), a bearing (312), a spiral stirring blade (313), and a stirring blade (314). The bottom wall of the inner cylinder (2) is provided with a protective cylinder (302). The center of the bottom wall of the inner cylinder (2) is rotatably connected to the rotating shaft (310). The lower side of the rotating shaft (310) is located inside the protective cylinder (302). The inner wall of the protective cylinder (302) is rotatably connected with a slip ring (308). The outer wall of the upper side of the rotating shaft (310) is fixedly sleeved with a bearing (312). The outer surface of the upper side of the slip ring (308) and the outer surface of the bearing (312) are respectively fixedly sleeved with a support rod (311). The inner sides of the two support rods (311) are fixedly connected with evenly distributed spiral stirring blades (313). The outer surface of the rotating shaft (310) is fixedly sleeved with evenly distributed stirring blades (314).
2. The low-temperature steam cooking equipment according to claim 1, characterized in that: The outer cylinder (1) is equipped with a microcontroller (12) on its exterior, and the input terminal of the microcontroller (12) is electrically connected to an external power source.
3. The low-temperature steam cooking equipment according to claim 2, characterized in that: The stirring mechanism (3) further includes a first sealed bearing (307) and a second sealed bearing (309). The first sealed bearing (307) is provided between the upper side of the inner wall of the protective cylinder (302) and the lower side of the outer wall of the slip ring (308). The upper side of the inner wall of the protective cylinder (302) is fixedly connected to the outer wall of the first sealed bearing (307). The lower side of the outer wall of the slip ring (308) is fixedly connected to the inner wall of the first sealed bearing (307). The second sealed bearing (309) is provided between the upper side of the inner wall of the slip ring (308) and the lower side of the outer wall of the rotating shaft (310). The upper side of the inner wall of the slip ring (308) is fixedly connected to the outer wall of the second sealed bearing (309). The lower side of the outer wall of the rotating shaft (310) is fixedly connected to the inner wall of the second sealed bearing (309).
4. The low-temperature steam cooking equipment according to claim 3, characterized in that: The stirring mechanism (3) further includes a rotating column (303), a first bevel gear (304), a second bevel gear (305), and a bevel ring (306). The inner wall of the protective cylinder (302) is rotatably connected to the rotating column (303). The right end of the rotating column (303) is fixedly connected to the first bevel gear (304). The outer wall of the rotating shaft (310) located inside the protective cylinder (302) is fixedly fitted with the second bevel gear (305). The outer wall of the lower end of the slip ring (308) is fixedly fitted with the bevel ring (306). The second bevel gear (305) and the bevel ring (306) are both meshed with the first bevel gear (304).
5. The low-temperature steam cooking equipment according to claim 4, characterized in that: The stirring mechanism (3) also includes a motor (301). The lower end of the outer cylinder (1) is provided with a motor (301). The upper end of the output shaft of the motor (301) is fixedly connected to the lower end of the rotating shaft (310). The input end of the motor (301) is electrically connected to the output end of the microcontroller (12).
6. The low-temperature steam cooking equipment according to claim 2, characterized in that: The outer cylinder (1) is hinged to the upper edge of the outer cylinder (1) by a hinge. The upper end of the outer cylinder (4) is provided with a temperature sensor (11). The detection end of the temperature sensor (11) extends into the interior of the inner cylinder (2). The temperature sensor (11) is bidirectionally electrically connected to the microcontroller (12).
7. The low-temperature steam cooking equipment according to claim 1, characterized in that: The inner cylinder (2) has an inlet pipe (5) at the inlet on the upper side of the outer wall, an outlet pipe (6) at the outlet on the lower side of the outer wall, and a condensate drain pipe (10) at the condensate drain outlet on the lower side of the outer wall.
8. A low-temperature steam cooking apparatus according to claim 2, characterized in that: The outer cylinder (1) is provided with a steam generator (8). The steam outlet at the upper end of the steam generator (8) is connected to the upper end of the steel pipe (7). A steam trap (9) is connected in series at the lower end of the steel pipe (7). The input end of the steam generator (8) is electrically connected to the output end of the microcontroller (12).