CN113679242B - Steaming and baking oven self-cleaning system and steaming and baking oven self-cleaning control method - Google Patents
Steaming and baking oven self-cleaning system and steaming and baking oven self-cleaning control method Download PDFInfo
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- CN113679242B CN113679242B CN202111039033.3A CN202111039033A CN113679242B CN 113679242 B CN113679242 B CN 113679242B CN 202111039033 A CN202111039033 A CN 202111039033A CN 113679242 B CN113679242 B CN 113679242B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/42—Devices to prevent deposition of scale, i.e. fur, or the like
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
- A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
Abstract
The invention provides a steaming and baking oven self-cleaning system and a steaming and baking oven self-cleaning control method. The self-cleaning system of the steam oven comprises the steam oven, an evaporator, a water tank, a water suction pump, a drain valve, a temperature sensor, a heater and a controller. The steaming oven comprises a steaming oven cavity; the evaporator is used for generating steam and conveying the steam to the chamber of the steaming oven; the water tank is used for storing clean water and water containing detergent; the water suction pump is used for conveying water in the water tank to the evaporator; the drain valve is used for draining the water stored in the evaporator; the temperature sensor is used for sensing the temperatures of the evaporator and the chamber of the steaming oven; the heater is used for heating the cavity of the steaming oven; the controller is electrically connected with the evaporator, the water tank, the water suction pump, the drain valve, the temperature sensor and the heater to realize self-cleaning of the steaming and baking oven. The self-cleaning system of the steam oven controls the evaporator and the cavity of the steam oven through the controller to realize repeated high-temperature oil stain removal and multi-stage scale removal without manual cleaning action in the whole process.
Description
Technical Field
The invention relates to the field of kitchen utensils, in particular to a steaming and baking oven self-cleaning system and a steaming and baking oven self-cleaning control method.
Background
The existing steaming and baking oven uses the evaporator to heat water to boil to generate steam, the steam is removed to the machine cavity to heat food, the evaporator is heated due to long-term working, more scales can be generated inside the evaporator, and the inside of the machine is difficult to clean due to more oil stains which can be generated due to long-term steaming and baking of the food.
Disclosure of Invention
The invention aims to provide a self-cleaning system of a steam oven, which realizes repeated high-temperature oil stain removal by controlling an evaporator and a cavity of the steam oven through a controller, and does not need manual cleaning action in the whole process of multi-stage scale removal.
The invention also aims to provide a self-cleaning control method of the steaming oven.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
according to one aspect of the present invention, there is provided a steam oven self-cleaning system comprising a steam oven, an evaporator, a water tank, a water pump, a drain valve, a temperature sensor, a heater, and a controller. The steam oven includes a steam oven cavity. The evaporator is used to generate steam and deliver it to the steamer oven cavity. The water tank is used for storing clean water and water containing detergent. The water suction pump is used for conveying water in the water tank to the evaporator. The drain valve is used to drain the water stored in the evaporator. The temperature sensor is used for sensing the temperature of the evaporator and the steaming oven cavity. The heater is used for heating the steaming oven cavity. The controller is electrically connected with the evaporator, the water tank, the water suction pump, the drain valve, the temperature sensor and the heater so as to realize self-cleaning of the steaming and baking oven.
According to an embodiment of the present invention, the oven self-cleaning system further comprises a display for displaying control instructions of the controller.
According to an embodiment of the present invention, the oven self-cleaning system further comprises a waste water collector for collecting waste water discharged from the evaporator and the steaming oven cavity.
According to another aspect of the present invention, there is provided a steaming oven self-cleaning control method, including: draining water from the evaporator and drying the evaporator; pumping water with scale cleaning agent in the water tank into the evaporator by a water pump to be heated so as to form steam and convey the steam to the chamber of the steaming oven; after the evaporator is conveyed, buzzing is given out to replace the water in the water tank with clean water; clear water in the water tank is pumped into the evaporator through the water pump to be heated so as to form steam and then the steam is conveyed to the steaming oven cavity; and opening a heater to heat the chamber of the steaming oven so as to dry and discharge the oil-water mixture attached to the chamber of the steaming oven.
According to an embodiment of the invention, during the self-cleaning process of the steaming oven, the door lock of the steaming oven is opened to prevent a user from being scalded due to halfway opening the door.
According to an embodiment of the present invention, the controller issues a control command to open the drain valve to drain the water remaining in the evaporator, start the evaporator to heat, and close the drain valve when the temperature reaches 125 ℃.
According to an embodiment of the invention, the controller controls the water pump to pump water with scale cleaning agent in 2/3 of the volume of the evaporator to the evaporator, keeps the evaporator continuously heated to generate steam with temperature more than 100 ℃ to be delivered to the steaming oven cavity, and ends when the temperature of the evaporator is detected to be more than 125 ℃ for 5 s;
the controller controls the water pump to pump water with scale cleaning agent in 1/3 of the volume of the evaporator to the evaporator, keeps the evaporator continuously heated to generate steam with the temperature of more than 103 ℃ to be delivered to the chamber of the steaming oven, and ends when the temperature of the evaporator is detected to be more than 125 ℃ for 5 s; and
the controller controls the water pump to pump water with scale cleaning agent, which is 1/6 of the volume of the evaporator, to the evaporator, keeps the evaporator heated continuously to generate steam with the temperature of more than 106 ℃ to be delivered to the chamber of the steaming oven, and the operation is finished when the temperature of the evaporator is detected to be more than 125 ℃ for 5 s.
According to an embodiment of the invention, after the evaporator delivers steam to the chamber of the steaming and baking oven, the controller controls the buzzer to sound to prompt a user to change water, and when the controller detects that the micro switch at the water tank is switched off for more than 2 seconds, and then continuously switches on the signal for 2 seconds, the water in the water tank is changed.
According to an embodiment of the present invention, the controller controls the water suction pump to pump clear water with a volume of 100% of that of the evaporator to the evaporator, keeps for 1 minute without heating and cleaning the inner wall of the evaporator, and opens the water discharge valve to empty the clear water;
the controller controls the water suction pump to pump clean water with the volume of 2/3 of that of the evaporator to be conveyed to the evaporator, the evaporator is kept continuously heated to generate steam with the temperature of more than 100 ℃ and conveyed to the chamber of the steaming oven, and the operation is finished when the temperature of the evaporator is detected to be more than 125 ℃ for 5 seconds;
the controller controls the water suction pump to pump clean water with the volume of 1/3 of that of the evaporator to the evaporator, keeps the evaporator continuously heated to generate steam with the temperature of more than 103 ℃ and conveys the steam to the chamber of the steaming oven, and finishes when the temperature of the evaporator is detected to be more than 125 ℃ for 5 seconds;
the controller controls the water suction pump to pump clear water with the volume being 1/6 of that of the evaporator to be conveyed to the evaporator, the evaporator is kept heated continuously to generate steam with the temperature being more than 106 ℃ and conveyed to the cavity of the steaming oven, and the operation is finished when the temperature of the evaporator is detected to be more than 125 ℃ for 5 seconds; and
and the controller controls the water suction pump and the water discharge valve to be opened until water in the water tank is drained and discharged, and the operation is finished when the temperature of the evaporator is detected to be higher than 125 ℃ for 5s continuously.
According to an embodiment of the present invention, the controller controls the heater to be turned on, the temperature of the chamber of the steaming oven is maintained between 115 ℃ and 120 ℃, and the heater is turned off for 5 minutes; and
and simultaneously the controller controls the evaporator to be started, and the temperature of the evaporator is kept between 120 ℃ and 125 ℃ until the heater is switched off.
One embodiment of the present invention has the following advantages or benefits:
the self-cleaning system of the steam oven adopts the self-cleaning control method of the steam oven, the evaporator is controlled by the controller to heat water with scale cleaning agent and clean water successively to form steam, the steam enters the cavity of the steam oven to realize repeated high-temperature oil stain removal and multi-stage scale removal, and manual cleaning action is not needed in the whole process.
Drawings
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 attached drawings.
FIG. 1 is a schematic diagram of a steaming oven self-cleaning system shown according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating a steaming oven self-cleaning control method according to an exemplary embodiment.
Wherein the reference numerals are as follows:
1. steaming and baking oven; 11. a steaming oven cavity; 2. an evaporator; 3. a water tank; 4. a water pump; 5. a drain valve; 6. a temperature sensor; 7. a heater; 8. and a controller.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
Referring to fig. 1 to 2, fig. 1 is a schematic view illustrating a self-cleaning system of a steaming oven according to the present invention. Fig. 2 is a schematic diagram illustrating a self-cleaning control method for a steaming oven according to the present invention.
The steam oven self-cleaning system comprises a steam oven 1, an evaporator 2, a water tank 3, a water suction pump 4, a water discharge valve 5, a temperature sensor 6, a heater 7 and a controller 8. The steaming oven 1 comprises a steaming oven cavity 11. The evaporator 2 is used to generate steam and deliver it to the steaming oven cavity 11. The water tank 3 is used to store fresh water and water containing detergent. A suction pump 4 is used to deliver water from the tank 3 to the evaporator 2. The drain valve 5 is used to discharge the water stored in the evaporator 2. The temperature sensor 6 is used to sense the temperature of the evaporator 2 and the steaming oven cavity 11. The heater 7 is used to heat the steaming oven cavity 11. The controller 8 is used for controlling the evaporator 2, the water tank 3, the water pump 4, the drain valve 5, the temperature sensor 6 and the heater 7 so as to realize self-cleaning of the steaming oven.
Wherein, evaporimeter 2 passes through pipe connection steaming and baking oven cavity 11, and connects water tank 3 through suction pump 4. The evaporator 2 is also connected to a drain valve 5 to drain the stored water in the evaporator 2. The water tank 3 may be replaced with water stored therein manually or by machine. The temperature sensor 6 can be used to detect the temperature of the evaporator 2, the steaming oven cavity 11. The heater is attached to the inner wall of the steaming oven and is located in the steaming oven cavity 11. The controller 8 detects whether the water tank 3 is short of water or full of water. The controller 8 controls the suction pump 4 to pump water in the water tank 3 into the evaporator 2. The controller 8 controls the evaporator 2 to heat the water input thereto into steam into the steamer chamber 11. The controller 8 receives the temperature value sensed from the temperature sensor 6. The controller 8 controls the opening and closing of the drain valve 5 to drain the waste water in the evaporator 2. The controller 8 controls the heater 7 to heat the steaming oven cavity 11. The self-cleaning function of the steaming and baking box is realized through the control.
In a preferred embodiment of the present invention, the oven self-cleaning system further comprises a display 9 for displaying control instructions of the controller 8.
As shown in fig. 1, the display 9 is electrically connected to the controller 8 for displaying various control commands output by the controller 8.
In a preferred embodiment of the invention, the oven self-cleaning system further comprises a waste water collector 10 for collecting waste water drained by the evaporator 2 and the steaming oven cavity 11.
As shown in fig. 1, the waste water collector 10 is connected to the evaporator 2 through a drain valve 5 and to the steamer chamber 11 through a pipe. Waste water from the evaporator 2 and the steamer chamber 11 is received under the control of the controller 8.
The self-cleaning control method for the steaming and baking oven comprises the following steps:
s1: discharging water in the evaporator 2 and drying the evaporator 2;
s2: pumping water with scale cleaning agent in the water tank 3 into the evaporator 2 through the water pump 4 to be heated to form steam and conveying the steam to the steaming and baking oven cavity 11;
s3: after the transmission of the evaporator 2 is finished, buzzing is given out to change the water in the water tank 3 into clean water;
s4: pumping clean water in the water tank 3 into the evaporator 2 through the water pump 4 to be heated so as to form steam and convey the steam to the steaming and baking oven cavity 11; and
s5: the heater 7 is turned on to heat the steaming oven cavity 11 so as to dry and discharge the oil-water mixture attached in the steaming oven cavity 11.
As shown in fig. 2, step S1 is for removing moisture remaining in the last operation of the evaporator 2. And S2, conveying the high-temperature steam to the chamber 11 of the steaming and baking oven for cleaning. Step S3 is for reminding the user that water needs to be replaced for the water tank 3. Step S4 is to clean the steaming and baking oven cavity 11 with clean water. And (5) heating by a heater to evaporate and discharge the attached oil-water mixture.
In a preferred embodiment of the present invention, the door lock of the steaming oven is opened to prevent a user from being burned by opening the door halfway during the self-cleaning process of the steaming oven.
As shown in figure 2, a user starts the self-cleaning function of the steam box and adds water with a scale remover, the steam box enters a self-cleaning function mode, a door lock is opened, and scalding caused by halfway opening of the door of the user is prevented.
In a preferred embodiment of the present invention, the controller 8 issues a control command to open the drain valve 5 to drain the water remaining in the evaporator 2, activate the evaporator 2 to heat, and close the drain valve 5 when the temperature reaches 125 ℃.
As shown in fig. 2, the controller 8 sends out a control command to open the drain valve 5, 20s finishes draining the water left last time, 20s can normally finish draining the water in the evaporator, starts the evaporator 2 to heat, considers that the water is dried when the temperature reaches 125 ℃, and closes the drain valve 5.
In a preferred embodiment of the invention, the controller 8 controls the water pump 4 to pump 2/3 of the volume of the evaporator 2 of the water with scale cleaning agent to the evaporator 2, keeping the evaporator 2 heated continuously to generate steam of more than 100 ℃ to be delivered to the steam oven cavity 11, and ending when the temperature of the evaporator 2 detected for 5s is more than 125 ℃;
the controller 8 controls the water pump 4 to pump water with the scale cleaning agent to the evaporator 2, wherein the water is 1/3 of the volume of the evaporator 2, the water is kept heated continuously to generate steam with the temperature of more than 103 ℃ and is conveyed to the chamber 11 of the steaming oven, and the heating process is finished when the temperature of the evaporator 2 is detected to be more than 125 ℃ for 5 s; and
the controller 8 controls the water pump 4 to pump water with scale cleaning agent to the evaporator 2 with the volume of 1/6 of the evaporator 2, keeps the evaporator 2 continuously heated to generate steam with the temperature of more than 106 ℃ to be conveyed to the steaming oven cavity 11, and finishes when the temperature of the evaporator 2 is detected to be more than 125 ℃ for 5s continuously.
As shown in FIG. 2, a large fire heats up to ensure adequate cleaning. Water and detergent react with oil stain at high temperature to reach the cleaning effect. The water pump is turned on for 30s to pump 200ml which accounts for 2/3 of the evaporator volume. The water pump 15s is turned on to pump 100ml of water to account for 1/3 of the evaporator volume. The water pump 8s is turned on to pump 50ml of water to account for 1/6 of the evaporator volume. The water amount of the tertiary work is gradually reduced, the steam temperature is ensured to be gradually increased, and the oil stain is ensured to be quickly cleaned.
In a preferred embodiment of the present invention, after the evaporator 2 finishes delivering steam to the steaming and baking oven cavity 11, the controller 8 controls the buzzer to sound to prompt the user to change water, and when the controller 8 detects that the micro switch at the water tank 3 is turned off for more than 2s, and then continuously turns on the signal for 2s, the water in the water tank 3 is changed.
As shown in fig. 2, the user is prompted to change the water with the scale remover to clean water by alarming for water shortage and sounding the buzzer, when the micro switch at the water tank 3 is detected to be off for more than 2s (indicating that the user takes away the water tank 3 and the alarm is cancelled), and then after the on signal is continuously detected for 2s, the user is considered to have changed the water in the water tank 3. And entering the next step of control.
In a preferred embodiment of the present invention, the controller 8 controls the water pump 4 to pump 100% of the volume of the evaporator 2 to the evaporator 2, keeps for 1 minute without heating and cleaning the inner wall of the evaporator 2, and opens the drain valve 5 to empty the clean water;
the controller 8 controls the water pump 4 to pump clear water with the volume of 2/3 of the evaporator 2 to the evaporator 2, keeps the evaporator 2 continuously heated to generate steam with the temperature of more than 100 ℃ and transmits the steam to the steaming and baking oven cavity 11, and finishes when the temperature of the evaporator 2 is detected to be more than 125 ℃ for 5 seconds;
the controller 8 controls the water pump 4 to pump clean water with volume 1/3 of the evaporator 2 to the evaporator 2, keeps the evaporator 2 continuously heated to generate steam with temperature more than 103 ℃ and conveys the steam to the steaming and baking oven cavity 11, and finishes when the temperature of the evaporator 2 is detected to be more than 125 ℃ for 5s continuously;
the controller 8 controls the water pump 4 to pump clean water with the volume of 1/6 of that of the evaporator 2 to the evaporator 2, keeps the evaporator 2 heated continuously to generate steam with the temperature of more than 106 ℃ and transmits the steam to the steaming and baking oven cavity 11, and finishes when the temperature of the evaporator 2 is detected to be more than 125 ℃ for 5 seconds; and
the controller 8 controls the suction pump 4 and the drain valve 5 to open until the water in the water tank 3 is drained and ends when the temperature of the evaporator 2 is detected to be greater than 125 ℃ for 5 seconds.
As shown in fig. 2, the steaming oven cavity 11 is cleaned with clean water. The water pump 45s is turned on to pump 300ml of water to occupy the whole volume of the evaporator. The water pump is turned on for 30s to pump 200ml which accounts for 2/3 of the evaporator volume. The water pump 15s is turned on to pump 100ml of water to account for 1/3 of the evaporator volume. The water pump 8s is turned on to pump 50ml of water to account for 1/6 of the evaporator volume. After the cleaning with clean water is finished, the water suction pump 4 and the water discharge valve 5 are opened all the time, the water in the water tank 3 is pumped out, and when no water is detected, the evaporator 2 is opened to heat until the temperature of the evaporator 2 is continuously detected for 5s until the temperature is more than 125 ℃, and the next step is carried out.
In a preferred embodiment of the present invention, the controller 8 controls the heater 7 to be turned on, the temperature of the steaming oven cavity 11 is maintained between 115 ℃ and 120 ℃, and the heater 7 is turned off for 5 minutes; and
at the same time, the controller 8 controls the evaporator 2 to be turned on, and the temperature of the evaporator 2 is maintained between 120 ℃ and 125 ℃ until the heater 7 is turned off.
As shown in fig. 2, the heater 7 of the steaming oven 1 is turned on, and when the temperature reaches 120 ℃, the heating is stopped, and when the temperature is lower than 115 ℃, the heating is started. For 5 minutes. And (4) burning and discharging the oil-water mixture attached to the cavity. Meanwhile, the temperature of the evaporator 2 is kept less than 120 ℃, and the heating is stopped when the temperature is higher than 125 ℃, so that the oil-water mixture in the cavity is prevented from entering the evaporator 2. This temperature is greater than the outside cavity temperature so that no oil-water mixture can enter the evaporator 2.
The self-cleaning system of the steam oven adopts the self-cleaning control method of the steam oven, the evaporator 2 is controlled by the controller 8 to heat water with scale cleaning agent and clean water successively to form steam which enters the cavity 11 of the steam oven to realize repeated high-temperature oil stain removal and multi-stage scale removal, and manual cleaning action is not needed in the whole process.
In embodiments of the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection. Specific meanings of the above terms in the embodiments of the present invention may be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention.
In the description herein, the appearances of the phrase "one embodiment," "a preferred embodiment," or the like, are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.
Claims (8)
1. A steaming and baking oven self-cleaning control method is characterized by comprising the following steps:
draining the water in the evaporator (2) and drying the evaporator (2);
pumping water with scale cleaning agent in a water tank (3) into the evaporator (2) through a water pump (4) to be heated to form steam and conveying the steam to a steaming and baking oven cavity (11);
after the evaporator (2) finishes conveying, buzzing to change the water in the water tank (3) into clean water;
pumping clean water in the water tank (3) into the evaporator (2) through the water pump (4) to be heated so as to form steam and conveying the steam to the steaming and baking box cavity (11); and
turning on a heater (7) to heat the steaming oven cavity (11) so as to dry and discharge the oil-water mixture attached in the steaming oven cavity (11);
wherein, the controller (8) sends a control instruction to open the drain valve (5) for 20s to drain the water remained in the evaporator (2), the evaporator (2) is started to heat, and the drain valve (5) is closed when the temperature reaches 125 ℃;
wherein the controller (8) controls the water pump (4) to pump water with scale cleaning agent to the evaporator (2) with the volume of 2/3 of the evaporator (2), keeps the evaporator (2) continuously heated to generate steam with the temperature of more than 100 ℃ to be conveyed to the steaming and baking oven cavity (11), and ends when the temperature of the evaporator (2) is detected to be more than 125 ℃ for 5 s;
the controller (8) controls the water pump (4) to pump water with scale cleaning agent to the evaporator (2) with the volume of 1/3 of the volume of the evaporator (2), keeps the evaporator (2) continuously heated to generate steam with the temperature of more than 103 ℃ to be conveyed to the steaming and baking oven cavity (11), and ends when the temperature of the evaporator (2) is detected to be more than 125 ℃ for 5 s; and
the controller (8) controls the water pump (4) to pump water with scale cleaning agent with the volume of 1/6 of that of the evaporator (2) to be conveyed to the evaporator (2), keeps the evaporator (2) heated continuously to generate steam with the temperature of more than 106 ℃ to be conveyed to the steaming and baking oven cavity (11), and ends when the temperature of the evaporator (2) is detected to be more than 125 ℃ for 5 seconds.
2. The self-cleaning control method for the steaming oven as claimed in claim 1, wherein during the self-cleaning process of the steaming oven, the door lock of the steaming oven is opened to prevent the user from being scalded due to halfway opening the door.
3. The self-cleaning control method for the steaming oven according to claim 1, wherein after the evaporator (2) finishes delivering steam to the steaming oven cavity (11), the controller (8) controls a buzzer to sound to prompt a user to change water, and when the controller (8) detects that the micro switch at the water tank (3) is turned off for more than 2s and is continuously turned on for 2s, the water in the water tank (3) is changed.
4. The steaming oven self-cleaning control method as claimed in claim 3,
the controller (8) controls the water pump (4) to pump clean water with the volume of 100% of the evaporator (2) and convey the clean water to the evaporator (2), the inner wall of the evaporator (2) is kept for 1 minute without being heated and cleaned, and the drain valve (5) is opened to empty the clean water;
the controller (8) controls the water pump (4) to pump clean water with the volume of 2/3 of that of the evaporator (2) to the evaporator (2), keeps the evaporator (2) heated continuously to generate steam with the temperature of more than 100 ℃ to be delivered to the steaming and baking oven cavity (11), and ends when the temperature of the evaporator (2) is detected to be more than 125 ℃ for 5 seconds;
the controller (8) controls the water pump (4) to pump clear water with the volume being 1/3 of that of the evaporator (2) to the evaporator (2), keeps the evaporator (2) continuously heated to generate steam with the temperature being more than 103 ℃ to be conveyed to the steaming and baking oven cavity (11), and ends when the temperature of the evaporator (2) is detected to be more than 125 ℃ for 5 seconds;
the controller (8) controls the water pump (4) to pump clean water with the volume of 1/6 of that of the evaporator (2) to the evaporator (2), keeps the evaporator (2) heated continuously to generate steam with the temperature of more than 106 ℃ to be delivered to the steaming and baking oven cavity (11), and ends when the temperature of the evaporator (2) is detected to be more than 125 ℃ for 5 seconds; and
the controller (8) controls the water suction pump (4) and the water discharge valve (5) to be opened until water in the water tank (3) is drained, and the operation is finished when the temperature of the evaporator (2) is detected to be more than 125 ℃ for 5 seconds.
5. The steaming oven self-cleaning control method as claimed in claim 4,
the controller (8) controls the heater (7) to be switched on, the temperature of the steaming and baking oven cavity (11) is kept between 115 ℃ and 120 ℃, and the heater (7) is switched off for 5 minutes; and
while the controller (8) controls the evaporator (2) to be turned on, the temperature of the evaporator (2) is maintained between 120 ℃ and 125 ℃ until the heater (7) is turned off.
6. A steaming oven self-cleaning system using the steaming oven self-cleaning control method as claimed in any one of claims 1 to 5, comprising:
a steaming oven (1) comprising a steaming oven cavity (11);
an evaporator (2) for generating steam and delivering it to the steaming-oven chamber (11);
a water tank (3) for storing clean water and water containing a detergent;
a suction pump (4) for delivering water in the water tank (3) to the evaporator (2);
a drain valve (5) for draining the water stored in the evaporator (2);
a temperature sensor (6) for sensing the temperature of the evaporator (2) and the steaming-oven cavity (11);
a heater (7) for heating the steaming-oven cavity (11); and
and the controller (8) is electrically connected with the evaporator (2), the water tank (3), the water suction pump (4), the drain valve (5), the temperature sensor (6) and the heater (7) so as to realize self-cleaning of the steaming and baking oven.
7. The oven self-cleaning system of claim 6, further comprising: and the display (9) is used for displaying the control instruction of the controller (8).
8. The oven self-cleaning system of claim 6, further comprising: a waste water collector (10) for collecting waste water discharged from the evaporator (2) and the steaming oven cavity (11).
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