High-efficiency steam generators and cooking equipment

Abstract

The present invention provides a high-efficiency steam generator, which belongs to the technical field of cooking equipment. The high-efficiency steam generator includes a shell, a heating part, and a nozzle part. The shell is surrounded by a cavity, a water inlet channel is provided at the bottom of the shell, and a steam outlet is provided at the top of the shell. The heating part is arranged in the shell, and the heating part includes a side heating part and a bottom heating part. The nozzle part is installed on the water inlet channel, and the nozzle part is provided with a plurality of water spray holes facing the side heating part and the bottom heating part, so that the incoming water is evenly distributed on the heating surfaces of the side heating part and the bottom heating part through the water spray holes. The high-efficiency steam generator uses the nozzle part to spray water at multiple points toward the side heating part and the bottom heating part, thereby achieving instantaneous uniform distribution on the heating surfaces of the side heating part and the bottom heating part. The water body can quickly cover the heating body, thereby improving the evaporation efficiency. Compared with the single-tube water inlet, the evaporation efficiency is higher and it is not easy to be blocked by scale.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking equipment, and in particular to a high-efficiency steam generator and cooking equipment. Background Art

[0002] The evaporator of an existing steamer or oven guides water into the evaporator through a single pipe under the action of gravity or pressure for evaporation. Due to the fixed position of the water inlet, the water cannot be instantly and evenly distributed on the surface or space of the evaporating heating body, resulting in low evaporation efficiency.

[0003] A steam oven with Chinese patent publication number CN217390495U discloses a method for instantaneously uniformly distributing a heating element. However, the high-frequency atomizer used in this method is prone to scale formation and clogging when the water quality is poor. Summary of the Invention

[0004] The object of the present invention is to provide a high-efficiency steam generator, which adopts a nozzle part to spray water to the side heating part and the bottom heating part at multiple points, so that the water is instantly evenly distributed on the heating surface of the side heating part and the bottom heating part. The water body can quickly cover the heating body, thereby improving the evaporation efficiency. Compared with the single-tube water inlet, the evaporation efficiency is higher and it is not easy to be blocked by scale.

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, a high-efficiency steam generator is provided, comprising a shell, a heating part and a nozzle part, the shell surrounding a cavity, a water inlet channel being provided at the bottom of the shell, a steam outlet being provided at the top of the shell, the heating part being arranged in the shell, the heating part comprising a side heating part and a bottom heating part, the nozzle part being installed on the water inlet channel, the nozzle part being provided with a plurality of water spray holes facing the side heating part and the bottom heating part, so that the incoming water is instantly and evenly distributed on the heating surfaces of the side heating part and the bottom heating part through the water spray holes.

[0007] According to one embodiment of the present invention, the heating portion further comprises a top heating portion, which is disposed on a top wall in the shell, and a portion of the plurality of water spray holes faces the top heating portion.

[0008] According to an embodiment of the present invention, the nozzle portion is rotatably mounted on the water inlet channel, so that the nozzle portion can rotate to spray the water column.

[0009] According to an embodiment of the present invention, the side heating portion surrounds the nozzle portion.

[0010] According to one embodiment of the present invention, the diameter of the water spray hole gradually increases from close to the water inlet channel to away from the water inlet channel to balance the water pressure of the water spray hole.

[0011] According to an embodiment of the present invention, the nozzle portion is perpendicular to or parallel to the bottom heating portion.

[0012] According to an embodiment of the present invention, the nozzle portion has a shape of any one of a cylindrical shape, a 'P' shape, an S shape, and a spherical shape.

[0013] According to one embodiment of the present invention, the side heating portion includes an annular heat-conducting wall and a first electric heating device, and the first electric heating device is ring-shaped and is arranged between the annular heat-conducting wall and the annular side wall of the shell.

[0014] According to one embodiment of the present invention, the bottom heating portion includes a heat-conducting bottom wall and a second electric heating device, the second electric heating device is arranged between the heat-conducting bottom wall and the bottom wall of the shell, and the heat-conducting bottom wall is fixedly connected to the annular heat-conducting wall.

[0015] According to one embodiment of the present invention, it also includes a condensation box, which includes an annular side plate and a bottom plate fixed to the annular side plate. The upper end surface of the annular side plate is fixed to the top wall of the shell corresponding to the steam outlet, and the annular side plate is provided with steam outlet holes arranged in an annular manner.

[0016] According to one embodiment of the present invention, it further includes a steam flow detector, a controller and a water pump, the steam flow detector is arranged on the upper part of the condensation box, the water outlet of the water pump is connected to the nozzle part, the steam flow detector, the heating part and the water pump are all electrically connected to the controller to control the power of the heating part and the water pump through the steam flow detector.

[0017] An embodiment of the present invention has the following advantages or beneficial effects:

[0018] A high-efficiency steam generator of the present invention sprays water to the side heating part and the bottom heating part at multiple points through the nozzle part, thereby achieving instantaneous and uniform distribution of water on the heating surfaces of the side heating part and the bottom heating part. The water body can quickly cover the heating body, thereby improving the evaporation efficiency. Compared with a single-tube water inlet, the evaporation efficiency is higher and it is not easy to be blocked by scale.

[0019] According to another aspect of the present invention, a cooking device is provided, comprising the above-mentioned high-efficiency steam generator, thereby improving evaporation efficiency, reducing cooking time, and improving cooking quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view showing a high-efficiency steam generator according to an exemplary embodiment.

[0022] Figure 2is a cross-sectional view of a first embodiment of a high-efficiency steam generator according to an exemplary embodiment.

[0023] Figure 3 FIG. 1 is a perspective view of a nozzle portion of a high-efficiency steam generator according to a first embodiment of the present invention.

[0024] Figure 4 is a cross-sectional view of a second embodiment of a high-efficiency steam generator according to an exemplary embodiment.

[0025] Figure 5 FIG. 1 is a perspective view of a second embodiment of a nozzle portion of a high-efficiency steam generator according to an exemplary embodiment.

[0026] Figure 6 FIG. 1 is a perspective view of a third embodiment of a nozzle portion of a high-efficiency steam generator according to an exemplary embodiment.

[0027] The description of the accompanying drawings is as follows:

[0028] 1. Shell; 11. Cavity; 12. Steam outlet; 13. Water inlet channel; 2. Heating part; 21. Side heating part; 211. Annular heat-conducting wall; 212. First electric heating device; 22. Bottom heating part; 221. Heat-conducting bottom wall; 222. Second electric heating device; 3. Nozzle part; 31. Water spray hole; 4. Condensation box; 41. Annular side plate; 411. Steam outlet; 42. Bottom plate; 5. Steam flow detector. DETAILED DESCRIPTION

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0030] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0031] like Figures 1 to 6 As shown, a high-efficiency steam generator according to an embodiment of the present invention includes a shell 1 , a heating part 2 and a nozzle part 3 .

[0032] The shell 1 is surrounded by a cavity 11, and a steam outlet 12 is provided on the top of the shell 1 for communicating with a steam box or a steam oven. A water inlet channel 13 is provided at the bottom of the shell 1 for communicating with a water pump pipe.

[0033] The shell 1 comprises a bottom wall, an annular wall and a top wall, and a cavity is formed by the bottom wall, the annular wall and the top wall.

[0034] Preferably, the water inlet channel 13 is located at the bottom center of the housing 1 .

[0035] The heating part 2 is disposed in the housing 1 , and includes a side heating part 21 and a bottom heating part 22 . The nozzle part 3 is mounted on the water inlet channel 13 , and one end of the nozzle part 3 is connected to an external water supply pipe.

[0036] The nozzle portion 3 is provided with a plurality of water spray holes 31 facing the side heating portion 21 and the bottom heating portion 22, so that the incoming water is instantly and evenly distributed on the heating surfaces of the side heating portion 21 and the bottom heating portion 22 through the water spray holes 31. The water is sprayed at multiple points, and the water body can quickly cover the heating body, thereby improving the evaporation efficiency. Compared with a single-tube water inlet, the evaporation efficiency is higher and it is not easy to be blocked by scale.

[0037] In a preferred embodiment of the present invention, the heating portion 2 is not limited to including the side heating portion 21 and the bottom heating portion 22. The heating portion 2 also includes a top heating portion, and the nozzle portion 3 is correspondingly provided with a water spray hole facing the top heating portion to increase the heating area and thereby improve the evaporation efficiency.

[0038] In a preferred embodiment of the present invention, the nozzle portion 3 can be rotatably mounted on the water inlet channel 13 to spray water columns to the entire area of ​​the heating surface, thereby achieving the effect of further improving the evaporation efficiency.

[0039] In a preferred embodiment of the present invention, a driving motor is further included. The driving motor is installed at the lower end of the housing 1, and the nozzle part 3 is installed on the rotating shaft of the driving motor. The driving motor drives the nozzle part 3 to rotate.

[0040] like Figures 1 to 6 As shown, in a preferred embodiment of the present invention, the side heating portion 21 surrounds the nozzle portion 3 to achieve all-round heating of the side, further improving the heating and evaporation efficiency.

[0041] like Figure 3 As shown, in a preferred embodiment of the present invention, the diameter of the water spray hole 31 gradually increases from close to the water inlet channel 13 to away from the water inlet channel 13 to balance the water pressure of the water spray hole 31 so that the sprayed water column evenly covers the heating surface.

[0042] The angle of the water can also be controlled by changing the inclination of the hole so that the water column covers the heating surface area.

[0043] As Figure 3 shown, in a preferred embodiment of the present invention, the nozzle part 3 is perpendicular to the bottom heating part 22 and is in the shape of a cylindrical tube like the Arabic numeral "1". For example, the height of the nozzle part 3 is equal to the height of the side heating part 21. A part of the water spray holes 31 on the nozzle part 3 face the side heating part 21, and another part of the water spray holes 31 face the bottom heating part 22.

[0044] As Figure 4 and Figure 5 shown, in a preferred embodiment of the present invention, the nozzle part 3 is parallel to the bottom heating part 22 and is in the shape of a Chinese character "one" shaped cylindrical tube. The middle part of the nozzle part 3 is connected to the water supply pipe.

[0045] The nozzle part 3 is in the shape of a cylindrical tube, and the water spray holes 31 are arranged in an annular array on the annular side wall of the nozzle part 3 to increase the spraying area and achieve the effect of improving the evaporation efficiency.

[0046] In a preferred embodiment of the present invention, the shape of the nozzle part 3 is any one of a cylindrical shape, a cross shape, an S shape, and a spherical shape.

[0047] As Figure 6 shown, the nozzle part 3 includes a plurality of cylindrical parts. The plurality of cylindrical parts are arranged in a cross shape and are interconnected. The plurality of cylindrical parts are all parallel to the bottom heating part 22 to achieve spraying water columns in the side, bottom, and top directions, achieving the effect of uniform spraying in multiple directions. The center of the nozzle part 3 is connected to the water supply pipe.

[0048] As Figure 2 and Figure 4 shown, in a preferred embodiment of the present invention, the side heating part 21 includes an annular heat conducting wall 211 and a first electric heating device 212. The first electric heating device 212 is in an annular shape and is arranged between the annular heat conducting wall 211 and the annular side wall of the housing 1. The first electric heating device 212 is electrically connected to a power source to heat the annular heat conducting wall 211, so as to evaporate the water sprayed on the annular heat conducting wall 211 to generate steam.

[0049] As Figure 2 and Figure 4 shown, in a preferred embodiment of the present invention, the bottom heating part 22 includes a heat conducting bottom wall 221 and a second electric heating device 222. The second electric heating device 222 is arranged between the heat conducting bottom wall 221 and the bottom wall of the housing 1, and the heat conducting bottom wall 221 is fixedly connected to the annular heat conducting wall 211. The heat conducting bottom wall 221 and the annular heat conducting wall 211 jointly enclose a leak-proof inner container.

[0050] As Figure 2 and Figure 4As shown, in a preferred embodiment of the present invention, a condensation box 4 is further included. The condensation box 4 includes an annular side plate 41 and a bottom plate 42 fixed to the annular side plate 41. The upper end surface of the annular side plate 41 is fixed to the top wall of the shell 1 corresponding to the steam outlet 12. The annular side plate 41 is provided with an annularly arranged steam outlet holes 411. The condensation box 4 is used to store condensed water formed by pre-cooling the steam at the steam outlet 12.

[0051] like Figure 1 、 Figure 2 and Figure 4 As shown, in a preferred embodiment of the present invention, it also includes a steam flow detector 5, a controller (not shown in the figure) and a water pump (not shown in the figure).

[0052] The steam flow detector 5 is arranged on the upper part of the condensation box 4, the water outlet of the water pump is connected to the nozzle part 3, and the steam flow detector 5, the heating part 2, and the water pump are all electrically connected to the controller to control the power of the heating part 2 and the water pump through the steam flow detector 5, so that the power of the heating part 2 and the water inlet amount reach the best efficiency.

[0053] When the steam flow detector 5 detects that the steam flow is less than a preset threshold, the controller controls the power of the heating part 2 to increase; or the controller controls the power of the heating part 2 and the water pump to increase.

[0054] When the steam flow detector 5 detects that the steam flow is greater than a preset threshold, the controller controls the power of the heating part 2 to be reduced; or the controller controls the power of the heating part 2 and the water pump to be reduced.

[0055] The present invention also provides a cooking device comprising a water pump, a water tank, and the aforementioned high-efficiency steam generator, thereby improving evaporation efficiency, reducing cooking time, and enhancing cooking quality. The cooking device of the present invention can be a steamer or a steam oven. Those skilled in the art can select the cooking device to which the high-efficiency steam generator is applied based on actual needs.

[0056] In the embodiments of the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art will understand the specific meanings of these terms in the embodiments of the present invention based on specific circumstances.

[0057] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the embodiments of the present invention.

[0058] Throughout this specification, terms such as "one embodiment" and "a preferred embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0059] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible in the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A high efficiency steam generator, characterized in that: include: A shell (1), wherein the shell (1) is provided with a cavity (11), a steam outlet (12) is provided at the top of the shell (1), and a water inlet channel (13) is provided at the bottom of the shell (1). A heating portion (2) is disposed in the cavity (11), the heating portion (2) comprising a side heating portion (21) and a bottom heating portion (22), and The nozzle portion (3) is mounted on the water inlet channel (13), and the nozzle portion (3) is provided with a plurality of water spray holes (31) facing the side heating portion (21) and the bottom heating portion (22), so that the incoming water is instantly and evenly distributed on the heating surfaces of the side heating portion (21) and the bottom heating portion (22) through the water spray holes (31).

2. The high-efficiency steam generator according to claim 1, characterized in that: The heating portion (2) further comprises a top heating portion, which is arranged on the top wall of the shell (1), and a portion of the plurality of water spray holes (31) faces the top heating portion.

3. The high-efficiency steam generator according to claim 1, characterized in that: The nozzle portion (3) can be rotatably mounted on the water inlet channel (13), so that the nozzle portion (3) can rotate and spray a water column.

4. The high-efficiency steam generator according to claim 3, characterized in that: The caliber of the water spray hole (31) gradually increases from close to the water inlet channel (13) to away from the water inlet channel (13) to balance the water outlet pressure.

5. The high-efficiency steam generator according to claim 4, characterized in that: The nozzle portion (3) is perpendicular to or parallel to the bottom heating portion (22).

6. The high-efficiency steam generator according to claim 5, characterized in that: The shape of the nozzle portion (3) is any one of a cylindrical, a 'M' shape, an S shape, and a spherical shape.

7. The high-efficiency steam generator according to any one of claims 1 to 6, characterized in that: The side heating portion (21) comprises an annular heat-conducting wall (211) and a first electric heating device (212); the first electric heating device (212) is annular and is arranged between the annular heat-conducting wall (211) and the annular side wall of the housing (1).

8. The high-efficiency steam generator according to claim 7, characterized in that: The bottom heating portion (22) comprises a heat-conducting bottom wall (221) and a second electric heating device (222), wherein the second electric heating device (222) is arranged between the heat-conducting bottom wall (221) and the bottom wall of the housing (1).

9. The high-efficiency steam generator according to claim 1, characterized in that: The invention also includes a condensation box (4), a steam flow detector (5), a controller and a water pump. The condensation box (4) includes an annular side plate (41) and a bottom plate (42) fixed to the annular side plate (41). The upper end surface of the annular side plate (41) is fixed to the top wall of the shell (1) corresponding to the steam outlet (12). The annular side plate (41) is provided with annularly arranged steam outlet holes (411). The steam flow detector (5) is arranged on the upper part of the condensation box (4). The water outlet of the water pump is connected to the nozzle part (3). The steam flow detector (5), the heating part (2) and the water pump are all electrically connected to the controller to control the power of the heating part (2) and the water pump through the steam flow detector (5).

10. A cooking device, characterized in that: A high-efficiency steam generator comprising any one of claims 1-9.

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