Heating device of steam generator
By dividing the heating tank into a first chamber and a second chamber, and evenly distributing electric heating tubes in the second chamber, combined with a water replenishment structure, the problem of slow steam generation in the prior art is solved, thereby improving heating efficiency and accelerating steam generation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN YINGCHU IND & TRADE CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-05
AI Technical Summary
Existing steam generators have heating devices with limited contact area between the heating plate and water, resulting in long heating times and slow steam generation.
The heating tank is divided into a first chamber and a second chamber. The first chamber is used to hold water, and the second chamber is filled with evenly distributed electric heating tubes to heat the water and generate steam. Water is continuously supplied to the second chamber through a water replenishment structure to ensure continuous steam generation.
It improves heating efficiency, reduces heat loss, accelerates steam generation, and ensures stable steam output.
Smart Images
Figure CN224201693U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to kitchen appliances, and more particularly to a heating device for a steam generator. Background Technology
[0002] In the field of kitchen appliances, steam generators are indispensable components in steam ovens, steam ovens, and other similar equipment. Their main function is to generate steam through heating, providing the high-temperature steam environment required for cooking. Currently, most common steam generator heating devices adopt a heating plate structure.
[0003] In this type of heating plate structure, the heating plate is directly exposed inside the steam generator's inner tank, which contains water. The heating plate is in direct contact with the water. Due to the limited area of the heating plate in direct contact with the water, a long heating time is required to convert the water into steam, resulting in slow steam generation. Therefore, improving the heating efficiency of steam generators and accelerating steam generation is a pressing technical problem in the current kitchen appliance industry. Utility Model Content
[0004] The main technical problem to be solved by this utility model is to provide a heating device for a steam generator that can improve the heating efficiency of the steam generator and accelerate the steam generation speed.
[0005] To solve the above-mentioned technical problems, this utility model provides a heating device for a steam generator, which includes a heating tank and a heating component for heating water to generate steam; the heating tank is provided with a first opening and a second opening along its length, the first opening is for water inlet, the second opening is for high-temperature steam outlet, and the second opening is for connecting external steaming and cooking equipment.
[0006] The heating tank is divided into a first chamber and a second chamber by a partition structure. The first chamber is connected to the first opening, and the second chamber is connected to the second opening.
[0007] The heating assembly includes electric heating tubes that are evenly distributed in the second chamber. The first chamber is used to contain water, and the second chamber is used to heat the water to generate steam. The first chamber continuously replenishes water to the second chamber through a water replenishment structure.
[0008] In a preferred embodiment, the heating tank is placed horizontally along its length, and the partition structure includes a horizontal baffle and a vertical baffle;
[0009] The horizontal baffle is arranged along the length of the heating tank and divides the internal space of the heating tank into upper and lower parts; the vertical baffle is arranged along the height of the heating tank and divides the internal space of the heating tank into left and right parts.
[0010] The length of the horizontal baffle is less than the length of the heating tank, the height of the vertical baffle is less than the height of the heating tank, the horizontal baffle and the vertical baffle are connected perpendicularly to each other, and the horizontal baffle and the vertical baffle together divide the heating tank into a first chamber and a second chamber;
[0011] The second chamber has a rectangular cross-section; the second chamber is located in the upper right position inside the heating tank.
[0012] In a preferred embodiment, the water replenishment structure includes a water replenishment hole disposed on the horizontal baffle, the water replenishment hole allowing water in the first chamber to flow into the second chamber;
[0013] The second chamber is separated by the horizontal baffle to form a water flow channel, which is located below the horizontal baffle and is connected to the water inlet hole.
[0014] In a preferred embodiment, a drain outlet is provided at the bottom of the second chamber.
[0015] In a preferred embodiment, the heating device includes a water supply tank, which is connected to the first chamber through the first opening;
[0016] The water replenishment tank is connected to an external water pump via an inlet pipe. A one-way valve is installed at the connection between the water replenishment tank and the inlet pipe, and the one-way valve is used for one-way water intake through the inlet pipe.
[0017] In a preferred embodiment, the water replenishment tank is equipped with a float switch, which is electrically connected to the water pump;
[0018] The float switch is used to detect the water level in the water tank and feed it back to the water pump, controlling the start and stop of the water pump according to the water level.
[0019] In a preferred embodiment, the water replenishment tank is provided with a water filling conduit connected to the water inlet pipe;
[0020] The water outlet of the water supply conduit is located near the second opening, or the water outlet of the water supply conduit extends into the first chamber through the second opening.
[0021] In a preferred embodiment, the upper end of the water replenishment tank is provided with a cap, and the cap is connected to the body of the water replenishment tank through a flange;
[0022] The cover has a water inlet and an installation port. The two ends of the water inlet are connected to the water inlet pipe and the water filling pipe, respectively. The installation port is used to assemble the float switch.
[0023] In a preferred embodiment, the heating assembly further includes an AC contactor connected to the electric heating element via a wire, the AC contactor being used to control the on / off state of the electric heating element.
[0024] In a preferred embodiment, the heating tank can be connected to a steam output pipe through the second opening, or the heating pipe can be connected to a steam tank through the second opening. The steam tank is used to store steam, and the steam tank is externally connected to a steam output pipe. The steam output pipe is used to connect to an external steaming and cooking device.
[0025] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:
[0026] 1. Improved heating efficiency: By dividing the heating tank into a first chamber and a second chamber, the first chamber is used to hold water and the second chamber is used to heat the water to generate steam. This allows the electric heating tube to concentrate on heating the water in the second chamber, reducing heat loss and thus improving heating efficiency and accelerating steam generation.
[0027] 2. Accelerate steam generation: By evenly distributing electric heating tubes in the second chamber, the water in the second chamber can be quickly heated and converted into steam. At the same time, the first chamber continuously replenishes water to the second chamber through the water replenishment structure, ensuring continuous steam generation and accelerating the steam generation speed. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall appearance structure of the heating device in a preferred embodiment of the present invention;
[0029] Figure 2 This is a schematic diagram of the overall internal structure of the heating device in a preferred embodiment of the present invention;
[0030] Figure 3 This is a schematic diagram showing the connection between the water tank, the water inlet pipe, and the water pump in a preferred embodiment of this utility model;
[0031] Figure 4 This is a schematic diagram of the heating device installed on the steam generator in a preferred embodiment of the present invention.
[0032] Explanation of reference numerals in the attached drawings: 1. Heating tank; 11. First opening; 12. Second opening; 13. First chamber; 14. Second chamber; 15. Horizontal baffle; 16. Vertical baffle; 17. Water inlet hole; 18. Water flow channel; 19. Drain outlet; 2. Heating component; 21. Electric heating element; 22. AC contactor; 3. Steam output pipe; 4. Steam tank; 5. Water inlet tank; 51. One-way valve; 52. Float switch; 53. Water inlet pipe; 54. Cover; 541. Water inlet; 542. Mounting port; 6. Water inlet pipe; 7. Water pump. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0036] refer to Figures 1-4 This embodiment provides a heating device for a steam generator. As the main structure of the steam generator for producing steam, the heating device can heat water more precisely, enabling the water to quickly reach the boiling point and be converted into steam. This steam generator is used in steaming and cooking equipment and can deliver the generated steam to the cooking chamber of the steaming and cooking equipment to realize steaming and cooking. This steaming and cooking equipment is suitable for various scenarios such as home kitchens, restaurants, and canteens, and has a wide range of application prospects.
[0037] In this embodiment, the heating device includes a heating tank 1 and a heating component 2 for heating water to generate steam. The heating tank 1 has a first opening 11 and a second opening 12 along its length. The first opening 11 is for water inlet, and the second opening 12 is for high-temperature steam outlet. The second opening 12 is for connecting to an external steaming and cooking device. The heating tank 1 is divided into a first chamber 13 and a second chamber 14 by a partition structure. The first chamber 13 is connected to the first opening 11, and the second chamber 14 is connected to the second opening 12. The heating component 2 includes an electric heating tube 21, which is evenly distributed in the second chamber 14. The first chamber 13 is used to contain water, and the second chamber 14 is used to heat the water to generate steam. The first chamber 13 continuously replenishes water to the second chamber 14 through a water replenishment structure.
[0038] like Figure 2 The heating assembly 2 also includes an AC contactor 22, which is connected to the electric heating tube 21 via a wire. The AC contactor 22 is used to control the power supply to the electric heating tube 21, and can precisely control the heating process, starting or stopping the heating as needed.
[0039] like Figure 4 The heating tank 1 can be connected to a steam output pipe 3 through the second opening 12, or the heating pipe can be connected to a steam tank 4 through the second opening 12. The steam tank 4 is used to store steam, and the steam output pipe 3 is externally connected to the steaming and cooking equipment. The connection method of the steam tank 4 storing steam and externally connecting to the steam output pipe 3 is flexible and can be selected according to different usage needs, improving the versatility and applicability of the heating device.
[0040] The heating tank 1 provides installation space for the heating assembly 2. The heating tank 1 is divided into a first chamber 13 and a second chamber 14. Electric heating tubes 21 are evenly distributed within the second chamber 14. The electric heating tubes 21 heat the water in the second chamber 14, generating high-temperature steam, which is output from the second opening 12. The first chamber 13 holds water, and the second chamber 14 heats the water to generate steam. This allows the electric heating tubes 21 to concentrate on heating the water in the second chamber 14, reducing heat loss and improving heating efficiency. Because the electric heating tubes 21 are evenly distributed within the second chamber 14, they can quickly heat the water in the second chamber 14 and convert it into steam. Simultaneously, the first chamber 13 continuously replenishes water to the second chamber 14 through a water replenishment structure, ensuring that the water in the second chamber 14 can be continuously heated to generate steam, maintaining a stable steam output, guaranteeing continuous steam generation, and accelerating the steam generation rate.
[0041] To ensure that water quickly reaches its boiling point and converts into steam, the first chamber 13 and the second chamber 14 are rationally distributed within the heating tank 1, such as... Figure 2 Specifically, the heating tank 1 is placed horizontally along its length, and the partition structure includes a horizontal baffle 15 and a vertical baffle 16. The horizontal baffle 15 is arranged along the length of the heating tank 1 and divides the internal space of the heating tank 1 into upper and lower parts. The vertical baffle 16 is arranged along the height of the heating tank 1 and divides the internal space of the heating tank 1 into left and right parts. The length of the horizontal baffle 15 is less than the length of the heating tank 1, and the height of the vertical baffle 16 is less than the height of the heating tank 1. The horizontal baffle 15 and the vertical baffle 16 are perpendicularly connected to each other, and the horizontal baffle 15 and the vertical baffle 16 together divide the heating tank 1 into a first chamber 13 and a second chamber 14. The cross-section of the second chamber 14 is rectangular. The second chamber 14 is located in the upper right position inside the heating tank 1.
[0042] The horizontal baffle 15 and vertical baffle 16 are fixed to the inner wall of the heating tank 1 (connected by welding or other fixing methods to ensure the robustness of the partition structure), dividing the heating tank 1 into a first chamber 13 and a second chamber 14. The structure is simple and easy to manufacture and install. The perpendicular connection of the horizontal baffle 15 and vertical baffle 16 results in a rectangular cross-section for the second chamber 14, located in the upper right position within the heating tank 1. This layout facilitates the uniform distribution of the electric heating tubes 21, further improving heating efficiency. The rational structure and dimensions of the horizontal baffle 15 and vertical baffle 16 ensure the stability of the partition structure while providing adequate space for water flow and steam generation.
[0043] A further water replenishment structure is provided, including a water replenishment hole 17 disposed on the horizontal baffle 15. The water replenishment hole 17 allows water in the first chamber 13 to flow into the second chamber 14, ensuring that the water level in the second chamber 14 is maintained within a reasonable range, thus ensuring continuous steam generation. The second chamber 14 is separated by a water flow channel 18 by the horizontal baffle 15. The water flow channel 18 is located below the horizontal baffle 15 and communicates with the water replenishment hole 17. Water flows from the first chamber 13 into the second chamber 14 under the action of gravity, allowing the water to flow smoothly from the first chamber 13 into the second chamber 14, avoiding excessive resistance at the horizontal baffle 15, and improving water replenishment efficiency.
[0044] The bottom of the second chamber 14 is provided with a drain port 19, which facilitates the discharge of impurities and dirt from the second chamber 14, keeps the heating tank 1 clean, and extends the service life of the heating device.
[0045] like Figure 1To facilitate continuous water replenishment to the second chamber 14, the heating device includes a water replenishment tank 5, which is connected to the first chamber 13 through the first opening 11; the water replenishment tank 5 is externally connected to a water pump 7 (such as...) through a water inlet pipe 6. Figure 3 The water supply tank 5 stably supplies water to the first chamber 13, ensuring that the water level in the first chamber 13 is maintained within a reasonable range, thereby guaranteeing the normal operation of the water supply structure. A one-way valve 51 is provided at the connection between the water supply tank 5 and the inlet pipe 6. The one-way valve 51 is used for one-way water intake through the inlet pipe 6. The one-way valve 51 can prevent water from flowing back from the first chamber 13 into the inlet pipe 6, ensuring the one-way flow of water and improving the reliability of the water supply system.
[0046] like Figure 2 Furthermore, a float switch 52 is installed inside the water replenishment tank 5, and the float switch 52 is electrically connected to the water pump 7. The float switch 52 is used to detect the water level in the water replenishment tank 5 and feed it back to the water pump 7, controlling the start and stop of the water pump 7 according to the water level to achieve automatic water replenishment. The float switch 52 is installed inside the water replenishment tank 5, and the water level is detected by the up and down movement of the float. When the water level drops to the set minimum water level, the float switch 52 triggers a signal to control the water pump 7 to start and replenish water into the water replenishment tank 5; when the water level rises to the set maximum water level, the float switch 52 triggers a signal again to control the water pump 7 to stop working.
[0047] like Figure 2 The water tank 5 is connected to the inlet pipe 6 and is equipped with a water filling conduit 53. The outlet end of the water filling conduit 53 is located near the second opening 12, or the outlet end of the water filling conduit 53 extends into the first chamber 13 through the second opening 12. By setting the water filling conduit 53, the water flow direction can be optimized, allowing the water to enter the first chamber 13 more smoothly, reducing water flow resistance, and improving water replenishment efficiency. At the same time, it avoids affecting the sensing of the float switch 52 when adding water.
[0048] like Figure 1 The upper end of the water replenishment tank 5 is provided with a cover 54, which is connected to the body of the water replenishment tank 5 via a flange. The cover 54 has a water inlet 541 and an installation port 542. The two ends of the water inlet 541 are respectively connected to the water inlet pipe 6 and the water filling pipe 53. The installation port 542 is used to assemble the float switch 52. The flange connection method facilitates the installation and removal of the cover 54, and makes it convenient to clean and maintain the inside of the water replenishment tank 5.
[0049] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.
Claims
1. A heating device for a steam generator, characterized in that: The heating device includes a heating tank and a heating component for heating water to generate steam; the heating tank is provided with a first opening and a second opening along its length, the first opening is for water inlet, the second opening is for high-temperature steam outlet, and the second opening is for connecting external steaming and cooking equipment. The heating tank is divided into a first chamber and a second chamber by a partition structure. The first chamber is connected to the first opening, and the second chamber is connected to the second opening. The heating assembly includes electric heating tubes that are evenly distributed in the second chamber. The first chamber is used to contain water, and the second chamber is used to heat the water to generate steam. The first chamber continuously replenishes water to the second chamber through a water replenishment structure.
2. The heating device for a steam generator according to claim 1, characterized in that: The heating tank is placed horizontally along its length, and the partition structure includes a horizontal baffle and a vertical baffle; The horizontal baffle is arranged along the length of the heating tank and divides the internal space of the heating tank into upper and lower parts; the vertical baffle is arranged along the height of the heating tank and divides the internal space of the heating tank into left and right parts. The length of the horizontal baffle is less than the length of the heating tank, the height of the vertical baffle is less than the height of the heating tank, the horizontal baffle and the vertical baffle are connected perpendicularly to each other, and the horizontal baffle and the vertical baffle together divide the heating tank into a first chamber and a second chamber; The second chamber has a rectangular cross-section; the second chamber is located in the upper right position inside the heating tank.
3. The heating device for a steam generator according to claim 2, characterized in that: The water replenishment structure includes a water replenishment hole disposed on the horizontal baffle, the water replenishment hole allowing water in the first chamber to flow into the second chamber; The second chamber is separated by the horizontal baffle to form a water flow channel, which is located below the horizontal baffle and is connected to the water inlet hole.
4. The heating device for a steam generator according to claim 3, characterized in that: The bottom of the second chamber is provided with a drain outlet.
5. The heating device for a steam generator according to claim 1, characterized in that: The heating device includes a water supply tank, which is connected to the first chamber through the first opening; The water replenishment tank is connected to an external water pump via an inlet pipe. A one-way valve is installed at the connection between the water replenishment tank and the inlet pipe, and the one-way valve is used for one-way water intake through the inlet pipe.
6. The heating device for a steam generator according to claim 5, characterized in that: The water supply tank is equipped with a float switch, which is electrically connected to the water pump. The float switch is used to detect the water level in the water tank and feed it back to the water pump, controlling the start and stop of the water pump according to the water level.
7. The heating device for a steam generator according to claim 6, characterized in that: The water supply tank is connected to the water inlet pipe and is equipped with a water filling conduit. The water outlet of the water supply conduit is located near the second opening, or the water outlet of the water supply conduit extends into the first chamber through the second opening.
8. The heating device for a steam generator according to claim 7, characterized in that: The upper end of the water replenishment tank is provided with a cover, which is connected to the body of the water replenishment tank through a flange; The cover has a water inlet and an installation port. The two ends of the water inlet are connected to the water inlet pipe and the water filling pipe, respectively. The installation port is used to assemble the float switch.
9. The heating device for a steam generator according to claim 1, characterized in that: The heating assembly also includes an AC contactor, which is connected to the electric heating tube via a wire and is used to control the power supply to and from the electric heating tube.
10. A heating device for a steam generator according to any one of claims 1-9, characterized in that: The heating tank can be connected to a steam output pipe through the second opening, or the heating pipe can be connected to a steam tank through the second opening. The steam tank is used to store steam, and the steam tank is externally connected to a steam output pipe. The steam output pipe is used to connect to external steaming and cooking equipment.