CN216147793U - Steam generating device and steam oven - Google Patents

Abstract

The embodiment of the utility model discloses a steam generating device and a steam oven, which comprise: the steam generator is provided with a water inlet, a mounting opening and a water outlet, and the water inlet and the mounting opening are positioned above the water outlet; the water level sensor is inserted in the mounting port, and a detection point of the water level sensor extends into the steam generator; one end of the water inlet pipe group is communicated with the water inlet; and one end of the drain pipe is communicated with the water outlet, the drain pipe is provided with a highest point of the drain pipe, and the height of the highest point of the drain pipe is smaller than that of the detection point of the water level sensor and larger than that of the highest point of the water outlet. The electronic control system sends out an instruction, the water inlet pipe group stops injecting water into the steam generator, and due to the siphon effect, the waste water and the scale in the steam generator can be automatically and continuously discharged from the water discharge pipe. The steam generating device has the advantages of high reliability of discharging waste water and scale, strong self-cleaning capability and capability of ensuring the sanitation and the use performance of the steam oven.

Description

Steam generating device and steam oven

Technical Field

The utility model relates to the technical field of electric cooking products, in particular to a steam generating device and a steam oven.

Background

With the continuous improvement of the technological level, various cooking appliances appear in the life of people, and guarantee is provided for people to obtain higher quality of life. For example, a steam oven is a new type of oven product that uses a heating tube to generate heat and a steam generator to generate steam to raise the temperature of the oven cavity, thereby achieving the purpose of heating food. Currently, steam ovens mainly use an evaporation pan steam generator, a boiler steam generator to generate steam.

However, in the above type of steam generator, the evaporation pan is easily dried during the steam generation process, so that impurities in the water are removed, and thus scale is generated, and the scale and residual waste water affect the service life and sanitation of the steam generator, so that the waste water and scale are discharged after each use of the steam oven or periodically. At present, the method for discharging the waste water and the water scale is to discharge the waste water and the water scale through water pressure by estimating the water injection amount of a water pump to an evaporation cavity. However, when the performance of the water pump is deviated to cause insufficient water in the water tank, the method for discharging the wastewater and the scale is invalid, the evaporation disc loses the cleaning capability, and the sanitation and the service performance of the steaming and baking oven are affected.

Disclosure of Invention

In view of the above, the utility model provides a steam generating device and a steam oven, which can realize self-cleaning in an evaporation cavity and are used for solving the problems that in the prior art, the reliability of discharging waste water and scale is poor, and the sanitation and the use performance of the steam oven are influenced.

To achieve one or a part or all of the above or other objects, the present invention provides a steam generating apparatus, including:

the steam generator is provided with a water inlet, a mounting port and a water outlet, and the water inlet and the mounting port are positioned above the water outlet;

the water level sensor is inserted into the mounting port, and a detection point of the water level sensor extends into the steam generator;

one end of the water inlet pipe group is communicated with the water inlet; and

and one end of the drain pipe is communicated with the water outlet, the drain pipe is provided with a highest point of the drain pipe, and the height of the highest point of the drain pipe is smaller than that of a detection point of the water level sensor and is larger than that of the highest point of the water outlet.

In one embodiment, the drain pipe further has a drain pipe endmost end having a height less than a height of a highest point of the drain opening.

In one embodiment, the steam generating device further comprises a fixing bracket connected with the drain pipe.

In one embodiment, the steam generator comprises a steam generator body and a steam generator cover body, wherein the steam generator body and the steam generator cover body are fixedly welded and matched to define a closed evaporation cavity; the water inlet and the mounting port are respectively formed on the steam generator cover body, and the water outlet is formed at the bottom of the steam generator body;

the steam generator further comprises a steam exhaust pipe, the steam generator cover body is further provided with a steam exhaust port, and one end of the steam exhaust pipe is communicated with the steam exhaust port.

In one embodiment, the height of the lowest point of the steam exhaust port and the height of the lowest point of the water inlet port are both greater than the height of a detection point of the water level sensor.

In one embodiment, the steam generating device further comprises a water retaining cover, the water retaining cover is arranged on the inner wall of the steam generator cover body and is positioned below the steam outlet, a steam passing port is arranged on the side surface of the water retaining cover, and the steam passing port is communicated with the evaporation cavity.

In one embodiment, the steam generator further comprises a heating element disposed at the bottom of the steam generator body.

In one embodiment, the steam generator further includes a heat storage body connected between the bottom of the steam generator body and the heat generating body.

In one embodiment, the steam generating device further comprises a temperature sensor, and the temperature sensor is arranged on the heat storage body.

A steam oven, comprising:

the oven comprises an oven body, a heating device and a heating device, wherein a steaming and baking cavity is formed inside the oven body;

the steam generating device is arranged outside the box body and communicated with the steaming and baking chamber;

the water storage tank is arranged outside the tank body and is communicated with the water inlet pipe group through a connecting device;

the waste water collecting container is arranged outside the box body, and a drainage pipe opening of the drainage pipe is arranged above the waste water collecting container; and

the oven door is movably arranged on the oven body and can open or close the steaming and baking chamber.

The embodiment of the utility model has the following beneficial effects:

the steam generating device of the scheme is applied to be equipped in a steam oven and used for generating high-temperature steam so as to process and ripen food. Specifically, when the steam generator enters a wastewater and scale discharge mode of operation, the water inlet pipe set continuously injects water from the water inlet into the interior of the steam generator. The mounting port is provided with a water level sensor, when the water level rises to a detection point contacting with the water level sensor, the height of the detection point of the water level sensor is greater than that of the highest point of the drain pipe, so that the vertical height of the water level is also greater than that of the highest point of the drain pipe, and under the action of water pressure formed by water level difference, wastewater and scale in the steam generator can be discharged from the drain pipe. On the basis, the electronic control system sends an instruction, the water inlet pipe group stops injecting water into the steam generator, and waste water and scale in the steam generator can be automatically and continuously discharged from the water discharge pipe due to the siphon effect. The steam generating device has the advantages of high reliability of discharging waste water and scale, strong self-cleaning capability and capability of ensuring the sanitation and the use performance of the steam oven.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 is a schematic structural diagram of a steam generator according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 4 is a schematic view of the internal structure of FIG. 1;

FIG. 5 is a schematic diagram of a steam oven according to an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 from another perspective;

fig. 7 is a schematic diagram of the exploded structure of fig. 6.

Description of reference numerals:

100. a steam generating device; 10. a steam generator; 11. a water inlet; 12. an installation port; 13. a water outlet; 14. a steam generator body; 15. a steam generator cover; 16. a steam exhaust port; 20. a water level sensor; 21. detecting points; 30. a water inlet pipe group; 40. a drain pipe; 41. the highest point of the drain pipe; 42. the tail end of the drain pipe; 50. fixing a bracket; 60. a steam exhaust pipe; 70. a water retaining cover; 80. a heating element; 90. a heat storage body; 100a, a temperature sensor; 200. a steam oven; 210. a box body; 220. a water storage tank; 230. a wastewater collection vessel; 240. a connecting device; 250. a furnace door.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, a steam generating device 100 according to an embodiment of the present invention includes: a steam generator 10, a water level sensor 20, a water inlet pipe set 30, and a water outlet pipe 40. The water inlet pipe group 30 is used for injecting water into the steam generator 10 for generating steam during operation. The water level sensor 20 is used to detect the real-time height of the water level inside the steam generator 10. The drain pipe 40 serves to drain the remaining waste water and the generated scale inside the steam generator 10.

With reference to fig. 4, in detail, the steam generator 10 is provided with a water inlet 11, a mounting opening 12 and a water outlet 13, and the water inlet 11 and the mounting opening 12 are located above the water outlet 13; the water level sensor 20 is inserted into the mounting opening 12, and a detection point 21 of the water level sensor 20 extends into the steam generator 10; one end of the water inlet pipe set 30 is communicated with the water inlet 11; one end of the drain pipe 40 is connected to the drain outlet 13, and the drain pipe 40 has a drain pipe highest point 41, and the height of the drain pipe highest point 41 is smaller than the height of the detection point 21 of the water level sensor 20 and larger than the height of the highest point of the drain outlet 13.

The embodiment of the utility model has the following beneficial effects: the steam generating device 100 of the above scheme is applied to be equipped in a steam oven 200 for generating high-temperature steam to process and ripen food. Specifically, when the steam generator 10 enters the waste water and scale discharging operation mode, the water inlet tube group 30 continuously injects water from the water inlet 11 into the inside of the steam generator 10. The installation opening 12 is installed with the water level sensor 20, when the water level rises to contact the detecting point 21 of the water level sensor 20, since the height of the detecting point 21 of the water level sensor 20 is greater than the height of the highest point 41 of the drain pipe, which indicates that the vertical height of the water level is also greater than the height of the highest point 41 of the drain pipe, under the water pressure formed by the water level difference, the waste water and scale in the steam generator 10 are discharged from the drain pipe 40. On the basis of this, the water inlet pipe set 30 stops filling water into the steam generator 10 by the command of the electronic control system, and the waste water and scale in the steam generator 10 will automatically and continuously be discharged from the water outlet pipe 40 due to the siphon effect. The steam generating device 100 of the present solution has high reliability of discharging waste water and scale, strong self-cleaning capability, and can ensure the sanitation and usability of the steam oven 200.

Further, the drain pipe 40 also has a drain pipe end 42, and the height of the drain pipe end 42 is smaller than the height of the highest point of the drain opening 13. Thus, a height difference can be formed between the extreme end 42 of the drain pipe and the highest point of the drain opening 13, so that a pressure difference can be generated, thereby ensuring a siphon effect.

With continuing reference to fig. 1, 3 and 4, further, the steam generating device 100 further includes a fixing bracket 50, and the fixing bracket 50 is connected to the drainage pipe 40. The fixing bracket 50 can fix the drain pipe 40 to the cabinet 210, thereby fixing the vertical height of the drain pipe 40.

Referring to fig. 3, in some embodiments, the steam generator 10 includes a steam generator body 14 and a steam generator cover 15, and the steam generator body 14 and the steam generator cover 15 are welded and fixed to define a sealed evaporation cavity. The steam generator body 14 is formed as a square box body, and the upper end thereof is open. The steam generator cover body 15 is welded and fixed at the open position, so that the sealing capacity of the formed closed evaporation cavity is good, and the steam is ensured not to leak.

Alternatively, the steam generator body 14 and the steam generator cover 15 may be made of plastic, metal, etc. When the plastic is adopted for manufacturing, the manufacturing cost can be effectively reduced. When the metal material is adopted for manufacturing, the structure strength is high, and the service life is long. However, it is necessary to coat the inner walls of the steam generator body 14 and the steam generator cover 15 with an anticorrosive coating to prevent the high-temperature steam from causing corrosion damage to the steam generator 10.

The water inlet 11 and the mounting opening 12 are formed on the steam generator cover 15, and the water outlet 13 is formed at the bottom of the steam generator body 14. The height of the detecting point 21 of the water level sensor 20 may be higher than the height of the highest point 41 of the drain pipe so as to form a height difference (i.e., a pressure difference) to generate a siphon effect, thereby effectively discharging the waste water and the scale. The water inlet 11 is provided at a high position to facilitate the water to be injected into the steam generator 10 at a lower pressure, reducing the power consumption for driving the water to flow.

Referring to fig. 1, fig. 3 and fig. 4, in addition, the steam generating device 100 further includes a steam discharging pipe 60, the steam generator cover 15 further has a steam discharging opening 16, and one end of the steam discharging pipe is connected to the steam discharging opening 16. Therefore, the high-temperature steam generated by heating can flow upwards and be directly discharged from the steam discharge pipe 60 at a high position into the steaming and baking chamber of the box body 210, so that the steam flow is smooth and rapid, and the steam supply is efficient.

It should be noted that the height of the lowest point of the steam exhaust port 16 and the height of the lowest point of the water inlet port 11 are both greater than the height of the detection point 21 of the water level sensor 20. This prevents the water level sensor 20 from being out of operation due to the rising water surface flooding the water inlet 11 and the steam outlet 16 before the detection point 21 of the water level sensor 20.

With continuing reference to fig. 3 and 4, in some embodiments, the steam generator 100 further includes a water-retaining cover 70, the water-retaining cover 70 is disposed on the inner wall of the steam generator cover 15 and below the steam outlet 16, and a steam-passing port is disposed on a side surface of the water-retaining cover 70, and the steam-passing port is communicated with the evaporation cavity.

The water blocking cover 70 can prevent the heated water from directly flowing out from the steam outlet 16 when the water level in the steam generator 10 is high, which affects the normal discharge of steam. And the steam passing port communicated with the evaporation cavity can prevent water from flowing out of the steam outlet 16 and simultaneously allow the generated steam to smoothly flow out of the steam outlet 16.

With reference to fig. 1 to fig. 3, in addition to any of the above embodiments, the steam generating device 100 further includes a heating element 80, and the heating element 80 is disposed at the bottom of the steam generator body 14. The heating body 80 is energized to generate a high temperature which can heat water in the steam generator 10 to raise the temperature of the water to be vaporized into steam so that the steam is used to heat food.

Alternatively, the heat generating body 80 may be any one or a combination of at least two or more of, but not limited to, a heat generating tube, a heat generating wire, a heat generating sheet, a heat generating film, and the like. The heating body 80 is connected with the electric control system through an electric wire, and the electric control system supplies electricity to the heating body 80 so that the heating body 80 generates high-temperature heat.

On the basis of the above embodiment, the steam generating device 100 further includes a heat storage body 90, and the heat storage body 90 is connected between the bottom of the steam generator body 14 and the heat generating body 80. The heat storage body 90 can store heat generated by the heating body 80, and when an emergency such as power failure occurs, the heat stored in the heat storage body 90 is released automatically, so that the steam generator 10 can still work normally for a period of time in a power-free state, and the working capacity of the steam generating device 100 is improved.

Wherein, heat accumulation body 90 is made by the heat accumulation material, and the heat accumulation material can be divided into four types: sensible heat storage materials, phase change heat storage materials, thermochemical heat storage materials and adsorptive heat storage materials. The heat storage material biologically changes at a specific temperature (e.g., a phase transition temperature) and absorbs or releases heat, and may be used to control the temperature of the surrounding environment or to store thermal energy. It stores heat or cold and releases it when necessary, thus improving the utilization rate of energy.

With reference to fig. 2 and fig. 3, in addition to the above embodiments, the steam generating device 100 further includes a temperature sensor 100a, and the temperature sensor 100a is disposed on the heat storage body 90. The temperature sensor 100a can detect the temperature of the heat storage body 90, and avoid potential safety hazards caused by abnormal temperature rise.

With continuing reference to fig. 5-7, in addition to the above, the present application provides a steam oven 200, which includes: a tank 210, a steam generating device 100, a water storage tank 220, a waste water collecting container 230, and a door 250.

A steaming and baking chamber is formed inside the box body 210; the steam generating device 100 is disposed outside the box 210 and is communicated with the steaming and baking chamber. The side wall of the box body 210 is opened with a through hole for communicating with the steam exhaust pipe 60, so that the steam generated by the steam generating device 100 is introduced into the steaming and baking chamber to steam and bake the food placed in the steaming and baking chamber.

Alternatively, the case 210 is formed as a rectangular box in this embodiment. Simple structure, the volume of steaming and baking cavity is big, can improve the quantity of single heating food.

The water storage tank 220 is disposed outside the tank 210 and is communicated with the water inlet pipe group 30 through a connection device 240. The water storage tank 220 can inject water into the steam generator 10 through the water inlet pipe group 30 to ensure that there is enough water for generating steam.

The waste water collecting container 230 is disposed outside the tank 210, and the outlet 40 of the outlet pipe 40 is disposed above the waste water collecting container 230. The wastewater collection container 230 may perform a concentrated recycling of wastewater and scale discharged from the steam generator 10, thereby facilitating a subsequent cleaning and ensuring a sanitation of the steam oven 200.

The oven door 250 is movably disposed on the box 210 and can open or close the steaming and baking chamber. Thereby facilitating the insertion or removal of food. The outer wall of the oven door 250 is provided with a handle so that a user can open and close the oven door 250.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A steam generating apparatus, comprising:

the steam generator is provided with a water inlet, a mounting port and a water outlet, and the water inlet and the mounting port are positioned above the water outlet;

the water level sensor is inserted into the mounting port, and a detection point of the water level sensor extends into the steam generator;

one end of the water inlet pipe group is communicated with the water inlet; and

and one end of the drain pipe is communicated with the water outlet, the drain pipe is provided with a highest point of the drain pipe, and the height of the highest point of the drain pipe is smaller than that of a detection point of the water level sensor and is larger than that of the highest point of the water outlet.

2. The steam generating apparatus of claim 1, wherein the drain pipe further has a drain pipe endmost end having a height less than a height of a highest point of the drain opening.

3. The steam generating apparatus of claim 1, further comprising a fixing bracket connected to the drain pipe.

4. The steam generating device of claim 1, wherein the steam generator comprises a steam generator body and a steam generator cover, and the steam generator body and the steam generator cover are welded and fixed and cooperate to define a closed evaporation cavity; the water inlet and the mounting port are respectively formed on the steam generator cover body, and the water outlet is formed at the bottom of the steam generator body;

the steam generator further comprises a steam exhaust pipe, the steam generator cover body is further provided with a steam exhaust port, and one end of the steam exhaust pipe is communicated with the steam exhaust port.

5. The steam generating apparatus as claimed in claim 4, wherein the height of the lowest point of the steam discharge port and the height of the lowest point of the water inlet port are each greater than the height of the detection point of the water level sensor.

6. The steam generating device as claimed in claim 4, further comprising a water shield disposed on an inner wall of the steam generator cover and below the steam outlet, wherein a steam passing port is formed on a side surface of the water shield, and the steam passing port is communicated with the evaporation chamber.

7. The steam generating device as claimed in claim 4, further comprising a heating body disposed at a bottom of the steam generator body.

8. The steam generating device of claim 7, further comprising a heat storage body connected between the bottom of the steam generator body and the heat generating body.

9. The steam generating device of claim 8, further comprising a temperature sensor disposed on the thermal storage body.

10. A steam oven, comprising:

the oven comprises an oven body, a heating device and a heating device, wherein a steaming and baking cavity is formed inside the oven body;

the steam generating device as claimed in any one of claims 1 to 9, which is disposed outside the case and communicates with the steaming chamber;

the water storage tank is arranged outside the tank body and is communicated with the water inlet pipe group through a connecting device;

the waste water collecting container is arranged outside the box body, and a drainage pipe opening of the drainage pipe is arranged above the waste water collecting container; and

the oven door is movably arranged on the oven body and can open or close the steaming and baking chamber.

Images