Steam generating device of steam generator

Abstract

The utility model provides a steam generating device of a steam generator, which comprises a tank-shaped heating cavity and a heating element, and two isolation plates are arranged in the heating cavity along the length direction of a tank; the heating cavity is separated into three independent cavities by the two separation plates along the length direction of the tank body, and the three independent cavities are divided into a heating cavity, a water replenishing cavity and a water storage cavity; the heating element is arranged in the heating cavity, the two isolation plates are respectively provided with an opening, the heating cavity and the water supplementing cavity are sequentially communicated through the openings, and the water supplementing cavity and the water storage cavity are sequentially communicated through the openings; by arranging the three independent cavities, water level detection can be stabilized, the water supplementing efficiency is improved, and the heating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to kitchen appliances, and more particularly to a steam generator device for a steam generator. Background Technology

[0002] In the field of kitchen appliances, steam generators are indispensable components of steam ovens, steam boilers, and mini steam boilers. Their main function is to generate steam through heating, providing the high-temperature steam environment required for cooking. Currently, most common steam generators use electric heating, and their heating components include heating elements and heating chambers. Common heating chamber structures are cylindrical or cuboid in shape, with heating elements (such as electric heating rods) installed inside the heating chamber, converting water into steam through electric current.

[0003] However, in existing steam generators, the water replenishment process is directly connected to the heating chamber. Water replenishment may interfere with the heating process, leading to reduced heating efficiency. Furthermore, during the heating process, the boiling water will generate a large number of bubbles, which will interfere with the normal operation of the water level detection device, resulting in inaccurate water level detection. Since the water volume is controlled by water level detection, this unstable water level detection will affect the accuracy of water replenishment. Utility Model Content

[0004] The main technical problem to be solved by this utility model is to provide a steam generation device for a steam generator, which stabilizes water level detection, improves water replenishment efficiency, and enhances heating efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides a steam generation device for a steam generator, including a tank-shaped heating chamber and a heating element, wherein two isolation plates are arranged in the heating chamber along the length of the tank.

[0006] Along the length of the tank, the heating chamber is separated into three independent chambers by the two partition plates. The three independent chambers are a heating chamber, a water replenishment chamber, and a water storage chamber. A water level detection device is installed in the water storage chamber.

[0007] The heating element is disposed inside the heating chamber. Each of the two isolation plates has an opening, and the heating chamber is connected to the water supply chamber and the water supply chamber in sequence through the opening.

[0008] In a preferred embodiment, the two isolation plates are divided into a first isolation plate and a second isolation plate; within the heating cavity, the first isolation plate isolates the heating cavity from the water replenishment cavity, and the second isolation plate isolates the water replenishment cavity from the water storage cavity.

[0009] In a preferred embodiment, the bottom of the first isolation plate is provided with a first water inlet, and the bottom of the second isolation plate is provided with a second water inlet;

[0010] The water storage chamber supplies water to the water replenishment chamber through the second water inlet, and the water replenishment chamber replenishes water to the heating chamber through the first water inlet.

[0011] In a preferred embodiment, the upper end of the first partition plate has a first opening, and the upper end of the second partition plate has a second opening;

[0012] The first opening and the second opening are used to balance the pressure between the heating chamber and the water supply chamber, and between the water supply chamber and the water storage chamber, respectively.

[0013] In a preferred embodiment, the heating cavity is an elliptical tank structure.

[0014] In a preferred embodiment, the heating cavity is provided with a steam storage cavity and a steam generation cavity arranged vertically along the major axis of the ellipse. The steam generation cavity and the steam storage cavity are integrated into a single elliptical cavity.

[0015] The steam generation chamber is connected to the water supply chamber, and the heating element is installed inside the steam generation chamber; the steam storage chamber is externally connected to a steam output device.

[0016] In a preferred embodiment, the heating element is an electric heating rod.

[0017] In a preferred embodiment, the heating chamber is provided with a temperature sensor, a pressure sensor and at least one safety valve above its tank.

[0018] The temperature sensor, pressure sensor, and safety valve are all connected to the gas storage chamber.

[0019] In a preferred embodiment, the water level detection device includes a liquid level sensor, which is installed above the tank of the heating cavity, and the detection end of the liquid level sensor is placed inside the water storage cavity; a water inlet is provided above the water storage cavity.

[0020] In a preferred embodiment, a one-way valve is installed at the water inlet; a water inlet conduit is connected to the water inlet, and the water inlet conduit extends from the water inlet into the water storage chamber.

[0021] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0022] 1. Stable water level detection: The heating chamber is divided into a heating chamber, a water replenishment chamber, and a water storage chamber by setting two isolation plates. The water replenishment chamber acts as a transition chamber, which plays a buffering role and reduces the interference of bubbles generated when the water boils on the water level detection, making the water level detection more stable.

[0023] 2. Improve water replenishment efficiency: Water in the water storage chamber flows into the water replenishment chamber and heating chamber sequentially through the opening on the isolation plate. This staged water replenishment method avoids direct interference with the heating process during water replenishment and improves water replenishment efficiency.

[0024] 3. Improved heating efficiency: By controlling the water volume through a water level detection device, the initial amount of water required for heating is reduced, resulting in less heat needed to generate steam, faster heating speed, and improved heating efficiency. Attached Figure Description

[0025] Figure 1 This is an exploded view of the overall structure of the steam generator in a preferred embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure and appearance of the steam generator in a preferred embodiment of the present invention;

[0027] Figure 3 This is a cross-sectional view of the internal structure of the heating cavity in a preferred embodiment of the present invention;

[0028] Figure 4 This is a structural diagram of a preferred embodiment of the present invention, showing the arrangement of a first isolation plate within the heating cavity;

[0029] Figure 5 This is a structural diagram of a preferred embodiment of the present invention, showing the arrangement of a second isolation plate within the heating cavity;

[0030] Figure 6 This is a structural diagram of the first isolation plate (second isolation plate) in a preferred embodiment of the present invention;

[0031] Figure 7 This is a structural diagram of the heating cavity of the elliptical tank structure in a preferred embodiment of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Heating chamber; 11. Heating chamber; 111. Steam storage chamber; 112. Steam generation chamber; 113. Steam outlet; 12. Water supply chamber; 13. Water storage chamber; 131. Water inlet; 132. One-way valve; 133. Water inlet pipe; 134. Drain outlet; 2. Heating element; 3. First isolation plate; 31. First water inlet; 32. First opening; 4. Second isolation plate; 41. Second water inlet; 42. Second opening; 5. Water level detection device; 6. Temperature sensor; 7. Pressure sensor; 8. Safety valve; 9. Pressure bypass valve; 10. Pressure relief valve. 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 1-7 This embodiment provides a steam generation device for a steam generator. As the main equipment for generating steam in a steam generator, the steam generation 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] like Figure 1 In this embodiment, the steam generating device includes a tank-shaped heating chamber 1 and a heating element 2. Two partition plates are arranged inside the heating chamber 1 along the length of the tank. Along the length of the tank, the heating chamber 1 is separated into three independent chambers by the two partition plates. These three independent chambers are a heating chamber 11, a water supply chamber 12, and a water storage chamber 13 (e.g., a heating chamber 11, a water supply chamber 12, and a water storage chamber 13). Figure 3The water storage chamber 13 is equipped with a water level detection device 5; the heating element 2 is installed in the heating chamber 11 to heat the water entering the heating chamber 11 and generate steam; the two isolation plates each have an opening, and the heating chamber 11 is connected to the water supply chamber 12 and the water supply chamber 12 is connected to the water storage chamber 13 in sequence through the opening to ensure smooth water flow.

[0038] In this embodiment, two partition plates are installed inside the heating cavity 1, dividing the heating cavity 1 into a heating cavity 11, a water replenishment cavity 12, and a water storage cavity 13. The water replenishment cavity 12 serves as a transition cavity, acting as a buffer. The water replenishment cavity 12 provides a two-stage buffering effect:

[0039] Primary buffer: Reduces the amount of water to be heated, resulting in faster steam generation. The water volume in the water supply chamber 12 is relatively small; during the heating process, only this small amount of water needs to be heated to generate steam more quickly.

[0040] Secondary buffer: Lowers the water level in the storage tank, making water level detection more stable. Due to the buffering effect of the water replenishment chamber 12, the bubbles generated by boiling water will not directly interfere with the water level detection device 5 in the storage tank, thus ensuring the stability of water level detection.

[0041] In this embodiment, a water level detection device 5 is installed in the water storage chamber 13 to detect the water level in the water storage tank, thereby realizing water level detection and water replenishment control. The water level detection device 5 is electrically connected to the control circuit. When the water level is below 50%, the control circuit starts the water pump to replenish water; when the water level reaches 70%, the control circuit stops the water pump to replenish water.

[0042] like Figure 3 The structure of the isolation plate is as follows: the two isolation plates are divided into a first isolation plate 3 and a second isolation plate 4; in the heating cavity 1, the first isolation plate 3 isolates the heating cavity 11 and the water replenishment cavity 12, and the second isolation plate 4 isolates the water replenishment cavity 12 and the water storage cavity 13.

[0043] like Figure 4 The bottom of the first isolation plate 3 is provided with a first water inlet 31, such as Figure 5 The bottom of the second isolation plate 4 is provided with a second water inlet 41; the water storage chamber 13 supplies water to the water replenishment chamber 12 through the second water inlet 41, and the water replenishment chamber 12 replenishes water to the heating chamber 11 through the first water inlet 31. Water from the water storage chamber 13 enters the water replenishment chamber 12 through the second water inlet 41, and water from the water replenishment chamber 12 enters the heating chamber 11 through the first water inlet 31. This water flow path design ensures the unidirectionality of the water flow, avoids backflow, makes the water flow smoother, reduces water flow resistance, and improves water replenishment efficiency.

[0044] like Figure 4The upper end of the first isolation plate 3 has a first opening 32, such as Figure 5 The upper end of the second isolation plate 4 has a second opening 42; the first opening 32 and the second opening 42 are used to balance the pressure between the heating chamber 11 and the water supply chamber 12, and between the water supply chamber 12 and the water storage chamber 13, respectively, which helps to prevent problems such as poor water flow or steam leakage caused by excessive pressure difference, and improves the operational stability of the device. The pressure balancing design ensures that the pressure difference between the three chambers is within a reasonable range, so that water can flow smoothly from the water storage chamber 13 into the water supply chamber 12, and then from the water supply chamber 12 into the heating chamber 11.

[0045] In this embodiment, the heating cavity 1 is an elliptical tank structure (e.g., Figure 1 The elliptical heating chamber 1 requires less initial water addition compared to a traditional cylindrical heating chamber 1. At the same height, because the minor axis of the ellipse is shorter than the radius of a circle, the volume of the elliptical water storage chamber is smaller. This results in less heat being required to heat the water to produce steam using the same power electric heating element 2, thus reducing the initial energy consumption of the equipment.

[0046] Specifically, the heating chamber 11 is provided with a steam storage chamber 111 and a steam generation chamber 112 arranged vertically along the major axis of the ellipse (e.g., ...). Figure 7 The steam generating chamber 112 and the steam storage chamber 111 are integrated into a single elliptical cavity. The steam generating chamber 112 is connected to the water supply chamber 12, and the heating element 2 is disposed inside the steam generating chamber 112. The steam storage chamber 111 is externally connected to a steam output device. The water in the steam generating chamber 112 is heated to generate steam, which rises and enters the steam storage chamber 111. The steam storage chamber 111 is externally connected to a steam output device to ensure that the steam can be output smoothly.

[0047] The heating element 2 is an electric heating rod, which is installed in the steam generation chamber 112 to heat the water flowing into the water supply chamber 12 and generate steam. The heating power and heating time of the electric heating rod can be precisely controlled by an electronic control system, converting water into steam through electric current heating. After the steam is generated, due to the structural design of the heating chamber 11, the steam will naturally rise into the steam storage chamber 111.

[0048] like Figure 2The heating chamber 1 is equipped with a temperature sensor 6, a pressure sensor 7, and at least one safety valve 8 above its tank body; the temperature sensor 6, pressure sensor 7, and safety valve 8 are all connected to the steam storage chamber 111. By installing the temperature sensor 6, pressure sensor 7, and safety valve 8 above the heating chamber 1, the temperature and pressure of the steam can be monitored in real time, ensuring the quality and safety of the steam. The temperature sensor 6 and pressure sensor 7 are installed on the steam storage chamber 111 to monitor the temperature and pressure of the steam, respectively. The safety valve 8 is connected to the steam storage chamber 111 and is used to automatically release pressure when it is too high, ensuring the safe operation of the device.

[0049] In this embodiment, a pressure bypass valve 9 can be connected to the steam outlet 113 of the external steam output device of the steam storage chamber 111. The pressure bypass valve 9 is used as a safety valve 8. The pressure bypass valve 9 can be used for steam pressure relief or as the steam outlet 113. Under normal circumstances, the pressure bypass valve 9 can be used as the steam outlet 113 to output steam to external equipment. When the pressure is too high, the pressure bypass valve 9 can automatically open to relieve pressure and discharge excess steam, ensuring the safe operation of the steam generator. Alternatively, the safety valve 8 and the pressure relief valve 10 can be set simultaneously for monitoring. The pressure sensor 7 is used to measure the pressure of the steam in the steam storage chamber 111. When the pressure exceeds the preset value of the pressure sensor 7, the pressure relief valve 10 and the safety valve 8 are used to relieve pressure in the steam storage chamber 111. The pressure sensor 7, the pressure relief valve 10, and the safety valve 8 are used to monitor and realize safe pressure relief.

[0050] The water storage chamber 13 is structured such that the water level detection device 5 includes a liquid level sensor, which is installed above the tank of the heating chamber 1, with its detection end placed inside the water storage chamber 13; a water inlet 131 is provided above the water storage chamber 13. By setting up the liquid level sensor, the water level in the water storage chamber 13 can be monitored in real time, and the water inlet 131 above the water storage chamber 13 is used for water replenishment, achieving automatic water replenishment through control of the liquid level sensor.

[0051] The bottom side of the water storage chamber 13 is provided with a drain port 134. When it is necessary to drain, impurities and dirt in the water replenishment chamber 12 can be discharged through the drain port 134, making the cleaning and maintenance of the water storage chamber 13 more convenient.

[0052] like Figure 3A one-way valve 132 is installed at the water inlet 131, allowing water to flow only into the water storage chamber 13 and preventing water from flowing back from the water storage chamber 13 to the water inlet 131, thus ensuring the one-way nature of the water replenishment process. A water inlet conduit 133 is connected to the water inlet 131, extending from the water inlet 131 into the water storage chamber 13. This conduit guides the water flow directly into the bottom of the water storage chamber 13, preventing the water flow from directly impacting the level sensor, reducing the impact and interference of the water flow on the level sensor, and also preventing the water addition from affecting the level sensor's sensing function.

[0053] 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 steam generation device for a steam generator, characterized in that: It includes a tank-shaped heating chamber and a heating element, wherein two partition plates are arranged in the heating chamber along the length of the tank; Along the length of the tank, the heating chamber is separated into three independent chambers by the two partition plates. The three independent chambers are a heating chamber, a water replenishment chamber, and a water storage chamber. A water level detection device is installed in the water storage chamber. The heating element is disposed inside the heating chamber. Each of the two isolation plates has an opening, and the heating chamber is connected to the water supply chamber and the water supply chamber in sequence through the opening.

2. The steam generating device for a steam generator according to claim 1, characterized in that: The two isolation plates are a first isolation plate and a second isolation plate; within the heating cavity, the first isolation plate isolates the heating cavity from the water supply cavity, and the second isolation plate isolates the water supply cavity from the water storage cavity.

3. The steam generating device for a steam generator according to claim 2, characterized in that: The first isolation plate has a first water inlet at its bottom, and the second isolation plate has a second water inlet at its bottom. The water storage chamber supplies water to the water replenishment chamber through the second water inlet, and the water replenishment chamber replenishes water to the heating chamber through the first water inlet.

4. The steam generating device for a steam generator according to claim 3, characterized in that: The first isolation plate has a first opening at its upper end, and the second isolation plate has a second opening at its upper end; The first opening and the second opening are used to balance the pressure between the heating chamber and the water supply chamber, and between the water supply chamber and the water storage chamber, respectively.

5. The steam generating device for a steam generator according to claim 1, characterized in that: The heating chamber has an elliptical tank structure.

6. The steam generating device for a steam generator according to claim 5, characterized in that: The heating chamber is divided into a steam storage chamber and a steam generation chamber along the long axis of the ellipse, and the steam generation chamber and the steam storage chamber are integrated into a whole elliptical cavity. The steam generation chamber is connected to the water supply chamber, and the heating element is installed inside the steam generation chamber; the steam storage chamber is externally connected to a steam output device.

7. The steam generating device for a steam generator according to claim 6, characterized in that: The heating element is an electric heating rod.

8. The steam generating device for a steam generator according to claim 6, characterized in that: The heating chamber is equipped with a temperature sensor, a pressure sensor, and at least one safety valve above its tank. The temperature sensor, pressure sensor, and safety valve are all connected to the gas storage chamber.

9. The steam generating device for a steam generator according to claim 1, characterized in that: The water level detection device includes a liquid level sensor, which is installed above the tank of the heating chamber, with the detection end of the liquid level sensor placed inside the water storage chamber; a water inlet is opened above the water storage chamber.

10. The steam generating device for a steam generator according to claim 9, characterized in that: A one-way valve is installed at the water inlet; a water inlet conduit is connected to the water inlet, and the water inlet conduit extends from the water inlet into the water storage chamber.

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