Descaling method of a cooking apparatus and cooking apparatus

Abstract

The present application relates to the kitchen cleaning technology field, especially to a kind of cooking equipment descaling method and cooking equipment, the method is applied to the cooking equipment with instant heating type heating pipe, the cooking equipment also has control unit;The method comprises: obtaining the fouling degree of cooking equipment;If the fouling degree is moderate fouling or severe fouling, open the first valve first duration to pass into the descaling particles dissolved in water between the water tank and the instant heating type heating pipe of cooking equipment first pipeline;Close the first valve, and, open the water pump second duration on first pipeline, to pass into the mixed solution of descaling particles dissolved in instant heating type heating pipe.The method is in the case where the fouling degree is moderate fouling or severe fouling, in the warm environment, through the way of dissolving solvent soaking, descaling, without disassembling cooking equipment and manually adding additional descaling agent, can automatically descale, reduce the influence of fouling on heating effect and cooking equipment application, improve user experience.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance control technology, and in particular to a method for descaling cooking equipment and the cooking equipment itself. Background Technology

[0002] Most existing steam fryers lack a descaling function, which causes the steam output to deteriorate after a period of use, eventually leading to a complete lack of steam production. Currently, the only solutions are to replace the heating element or disassemble the fryer and soak it in acetic acid for cleaning, which is inconvenient and results in a poor user experience. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a method for descaling a cooking device and a cooking device.

[0004] In a first aspect, embodiments of the present invention provide a method for descaling a cooking device, applicable to a cooking device having an instant heating element, the cooking device having a control unit; the method includes:

[0005] To determine the degree of scaling on cooking equipment;

[0006] If the scaling is moderate or severe, open the first valve for a first duration to introduce water-soluble descaling particles into the first pipeline between the water tank and the instant heating element of the cooking equipment.

[0007] Close the first valve and turn on the water pump on the first pipeline for a second time to pass the mixture containing the descaling particles into the instant heating pipe.

[0008] Turn off the water pump and control the operation of the instant heating element to soak, soften and remove the scale inside the instant heating element;

[0009] The descaling mixture is discharged three hours after the water pump is turned off;

[0010] The second duration is longer than the third duration.

[0011] In conjunction with the first aspect, after the step of draining the descaling mixture three hours after the water pump is shut down, the following is also included:

[0012] Obtain the initial degree of scaling on the cooking equipment;

[0013] If the first degree of scaling is still moderate or severe, control the first valve to be closed for a second period of time and then opened for a third period of time until the preset number of opening and closing times is reached or the water volume in the tank is insufficient.

[0014] In conjunction with the first aspect, the control unit has a pre-stored curve showing the relationship between temperature and the degree of scaling;

[0015] The steps for determining the degree of scaling on cooking equipment include:

[0016] Obtain the current temperature and previous temperature of the instant heating element;

[0017] Calculate the current rate of temperature rise based on the current temperature, the previous temperature, and the time interval;

[0018] If the current temperature rise rate is less than the set threshold, the scaling degree corresponding to the current temperature will be used as the scaling degree of the cooking equipment based on the preset relationship curve.

[0019] In conjunction with the first aspect, the steps for calculating the current rate of temperature rise based on the current temperature, the previous temperature, and the time interval include:

[0020] Calculate the difference between the current temperature and the previous temperature to obtain the current temperature rise;

[0021] Calculate the quotient of the current temperature rise and the time interval to obtain the current temperature rise rate.

[0022] In conjunction with the first aspect, the degree of scaling includes: no scaling, light scaling, moderate scaling, and heavy scaling;

[0023] After determining the degree of scaling on the cooking equipment, the process also includes:

[0024] If the scaling level is no scaling or slight scaling, maintain the current operating mode.

[0025] In conjunction with the first aspect, the steps of shutting off the water pump and controlling the operation of the instant heating element to soak, soften, and remove scale from the instant heating element include:

[0026] Obtain the water temperature value inside the instant heating element;

[0027] The operating status of the instant heating element is controlled based on the comparison between the water temperature value and the preset water temperature threshold.

[0028] In conjunction with the first aspect, the steps for controlling the operating status of the instantaneous heating element based on the comparison between the water temperature value and the preset water temperature threshold include:

[0029] If T≤T1, control the instantaneous heating element to operate;

[0030] If T>T2, control the instant heating element to shut off;

[0031] Where T is the water temperature value, T1 is the first water temperature threshold, T2 is the second water temperature threshold, and T1 < T2.

[0032] In conjunction with the first aspect, the ratio of the second duration to the third duration should be at least 8.

[0033] Secondly, embodiments of this application provide a cooking device having an instant heating element and a control unit, the control unit being used to perform the method as described above.

[0034] In conjunction with the second aspect, the water tank inside the cooking equipment is connected to the water inlet of the instant heating element through the first pipeline, and a water pump is installed on the first pipeline, which is connected to the control unit.

[0035] The bottom of the water tank is equipped with a descaling particle box for storing water-soluble descaling particles. The outlet of the descaling particle box is connected to the first pipeline through a first branch pipe. A first valve is installed on the first branch pipe, and the first valve is also connected to the control unit.

[0036] The embodiments of the present invention bring the following beneficial effects: This application provides a descaling method and cooking equipment for cooking equipment. When the scaling degree of the instant heating tube is moderate or heavy, the scale is softened and descaled by immersing in a dissolving solvent in a warm environment. There is no need to disassemble the cooking equipment or manually add additional descaling agent. The scale can be automatically descaled, reducing the impact of scaling on the heating effect and the application of the cooking equipment, and improving the user experience.

[0037] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained in accordance with the structures particularly pointed out in the description, claims and drawings.

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 A schematic flowchart illustrating the descaling method for a cooking device provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the internal connections of the cooking equipment according to an embodiment of the present invention;

[0042] Figure 3 A schematic diagram of the relationship curve between pre-stored scaling degree and temperature provided for an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the electronic device structure provided in an embodiment of the present invention.

[0044] Figure label:

[0045] 1-Water tank, 2-Instantaneous heating element, 3-First pipeline, 4-Water pump, 5-Descaling granule box, 6-First branch pipe, 7-First valve;

[0046] 130 - Processor, 131 - Memory, 132 - Bus, 133 - Communication interface. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] To facilitate understanding of this embodiment, the application scenarios and design concepts of this application embodiment will be briefly introduced below.

[0049] Instantaneous heating elements typically use a spiral structure with relatively small pipes. Once scale buildup occurs, it can easily prevent steam from being produced. Current methods involve replacing the heating element or disassembling it and cleaning it with acetic acid, which is inconvenient and results in a poor user experience.

[0050] Based on this, this application provides a descaling method for a cooking device, applicable to a cooking device with an instant heating element, the cooking device also having a control unit; combined with Figure 2 As shown, the water tank 1 in the cooking device is connected to the inlet of the instant heating element 2 via a first pipe 3. A water pump 4 is installed on the first pipe 3 and is connected to the control unit. The water pump 4 is used to draw water from the water tank 1 and input it into the instant heating element 2 via the first pipe 3. In this application, the bottom of the water tank 1 is provided with a descaling particle box 5 for storing water-soluble descaling particles. The outlet of the descaling particle box 5 is connected to the first pipe 3 via a first branch pipe 6. A first valve 7 is installed on the first branch pipe 6 and is also connected to the control unit.

[0051] Example 1

[0052] This application provides a method for descaling cooking equipment, combined with Figure 1 As shown, the method includes:

[0053] S110, obtain the degree of scaling on the cooking equipment.

[0054] S120, if the scaling degree is moderate or heavy, open the first valve for a first duration to introduce water-soluble descaling particles into the first pipeline between the water tank of the cooking equipment and the instant heating element.

[0055] S130, close the first valve and start the water pump on the first pipeline for a second duration to pass the mixture containing the descaling particles into the instant heating tube.

[0056] S140, turn off the water pump and control the operation of the instant heating element to soak, soften and remove the scale inside the instant heating element.

[0057] S150 discharges the descaling mixture three hours after the water pump is shut down.

[0058] The second duration is shorter than the third duration. In this embodiment, when the instant heating element 2 is moderately or heavily scaled, descaling particles are first introduced into the first pipeline for initial dissolution. Then, the water pump is turned on to introduce the dissolved mixture into the instant heating element 2. Under the heating action of the instant heating element 2, the warm dissolved solution soaks, softens, and removes the scale to obtain a descaling mixture. The descaling mixture is then discharged, so that descaling can be performed automatically without disassembling the cooking equipment or manually adding additional descaling agent, reducing the impact of scale on heating effect and application of cooking equipment.

[0059] Combination Figure 2 As shown in this application, the bottom of the water tank 1 of the cooking equipment is provided with a descaling particle box 5 for storing descaling particles. The water outlet of the water tank 1 is connected to the water inlet of the instant heating tube 2 through a first pipe 3. The outlet of the descaling particle box is connected to the first pipe 3 through a first branch pipe 6. Furthermore, a first valve 7 is provided on the first branch pipe 6. The first valve 7 is connected to a control unit. The control unit is also connected to a water pump 4 provided on the first pipe 3.

[0060] In cases of moderate or severe scaling, the first valve 7 is opened for a first duration to introduce water-soluble descaling particles into the first pipeline 3. At this time, the descaling particles enter the first pipeline 3 and dissolve. Then, the water pump 4 is turned on for a second duration to introduce the solution containing the dissolved descaling particles into the instant heating pipe 2 through the inlet. During the second duration, the scale on the inner wall of the instant heating pipe 2 is soaked, softened, and dissolved. Then, the water pump 4 is turned off for a third duration. Finally, the descaling mixture produced by the descaling process is discharged during the third duration.

[0061] In conjunction with the first aspect, after step S150, the following also includes:

[0062] S160, obtain the first degree of scaling on the cooking equipment.

[0063] S170, if the first degree of scaling is still moderate or heavy scaling, control the first valve to be closed for a second time and then opened for a third time, until the preset number of opening and closing times is reached or the water volume in the tank is insufficient.

[0064] Because different users use different water qualities, the amount of scale accumulated within the same time period will also vary. Equipment with better water quality will require a longer time to reach the required level of descaling, and the purer the water used, the longer the descaling time will be. Therefore, after performing the above descaling process and draining the descaling mixture, the degree of scale buildup is measured again. If it is still moderate or heavy scale, the water pump 4 is turned on for a second time and then off for a third time to continue to introduce the dissolving solution. Through repeated soaking, softening, and removal of scale, the number of times the water pump 4 is turned on and off reaches the upper limit (i.e., the preset number of times) or the water volume in the water tank 1 is insufficient.

[0065] In conjunction with the first aspect, step S110, which involves pre-storing a curve relating temperature to the degree of scaling within the control unit, includes:

[0066] S111, obtain the current temperature and previous temperature of the instant heating element.

[0067] S112, calculate the current temperature rise rate based on the current temperature, the previous temperature, and the time interval.

[0068] S113, if the current temperature rise rate is less than the set threshold, the scaling degree corresponding to the current temperature is taken as the scaling degree of the cooking equipment based on the preset relationship curve.

[0069] Understandably, during the operation of the instant heating element 2, in the initial stage, it rapidly heats up to the set operating temperature, at which point the temperature rise rate of the instant heating element 2 is relatively high. Once vaporization equilibrium is reached, the instant heating element 2 continues to operate to maintain a relatively stable temperature, at which point the temperature fluctuates within a small range, i.e., the temperature rise rate is relatively low. Thus, the current operating stage can be determined by comparing the temperature rise rate with the set threshold. If the current temperature rise rate is less than the set threshold, vaporization equilibrium has been reached. Understandably, upon reaching vaporization equilibrium, the degree of scaling can be judged based on the current temperature of the instant heating element 2. Specifically, this involves retrieving a pre-stored curve showing the relationship between the degree of scaling and temperature, combined with... Figure 3 As shown, the current temperature is compared with this relationship curve to determine the current degree of scaling. This relationship curve was plotted based on temperature data collected from instantaneous heating tube 2 with different degrees of scaling at different operating times.

[0070] In practical applications, water in water tank 1 flows along the first pipe 3 into the instant heating tube 2, where it is heated and vaporized into water vapor, which is then discharged from the outlet. Impurities in the water (particulate matter, minerals, etc.) adhere to the wall of the instant heating tube 2. Over time, the amount of impurities (scale) on the tube wall increases, affecting the heating effect of the instant heating tube (because some heat is absorbed by the scale, the instant heating tube 2 requires more heat to vaporize water, resulting in a higher temperature reading from the sensor). Figure 3 As shown, curve A represents the relationship between the degree of scaling and temperature in the unscaled state, where the temperature gradually stabilizes after 6 seconds of operation, and the rate of temperature rise is relatively small; curve B represents the relationship between the degree of scaling and temperature in the lightly scaled state, where the temperature gradually stabilizes after 7 seconds of operation, and the rate of temperature rise is relatively small; curve C represents the relationship between the degree of scaling and temperature in the moderately scaled state, where the temperature gradually stabilizes after 8 seconds of operation, and the rate of temperature rise is relatively small; curve D represents the relationship between the degree of scaling and temperature in the heavily scaled state, where the temperature gradually stabilizes after 9 seconds of operation, and the rate of temperature rise is relatively small.

[0071] Furthermore, the relationship curves corresponding to different scaling degrees show that as usage time increases, more and more impurities (scale) adhere to the pipe wall. Some heat is absorbed by the scale, and the heating element requires more heat to vaporize water, resulting in a higher temperature collected by the sensor. In other words, as the scaling degree worsens, the more stable the instantaneous heating element 2 generates, the higher the temperature value obtained. Therefore, by comparing the current temperature with temperature thresholds corresponding to multiple scaling degrees, the current scaling degree can be determined.

[0072] For example, when the instant heating element has been running for 15 seconds, the current detected temperature is 136℃, combined with... Figure 2 As shown, this temperature value corresponds to curve C, indicating a degree of scaling: moderate scaling.

[0073] Subsequently, it is understandable that as the degree of scaling increases, its impact on the heating effect of the instantaneous heating element 2 increases. At this point, step S123 determines whether to enter the descaling mode based on the determined degree of scaling. This can be set according to the actual situation. In this embodiment, the descaling mode is entered under the condition of moderate scaling and heavy scaling. It is understandable that the setting can also be changed so that the descaling mode is entered when only light scaling is observed. This is only an example and is not intended to limit the process.

[0074] In conjunction with the first aspect, step S112 includes:

[0075] S1121, calculate the difference between the current temperature and the previous temperature to obtain the current temperature rise;

[0076] S1122, calculate the quotient of the current temperature rise and the time interval to obtain the current temperature rise rate.

[0077] Understandably, the rate of temperature rise can be calculated using the following formula:

[0078]

[0079] Where v is the rate of temperature rise, T1 is the current temperature value, T2 is the previous temperature value, and Δt is the time interval.

[0080] For example, if the current temperature of the instant heating element is 108℃ after 6 seconds of operation, and the previous temperature was 82℃ after 4 seconds, then the temperature rise rate is calculated as v = (108-82)÷2 = 13℃ / s.

[0081] In conjunction with the first aspect, the degree of scaling includes: no scaling, light scaling, moderate scaling, and heavy scaling; after step S1110, it also includes:

[0082] If the scaling level is no scaling or slight scaling, maintain the current operating mode.

[0083] In this application, the descaling mode is only activated when there is moderate or severe scaling. In cases of mild scaling, the impact on the heating effect of the instantaneous heating element 2 is considered minimal, and therefore, descaling can be temporarily ignored. Users can adjust this according to their actual needs; for example, they can activate the descaling mode for mild, moderate, and severe scaling to facilitate earlier cleaning of the scale. This is merely an example and not a limitation.

[0084] In conjunction with the first aspect, step S150 also includes:

[0085] S151, obtain the water temperature value inside the instant heating element;

[0086] S152 controls the operating status of the instant heating element based on the comparison between the water temperature value and the preset water temperature threshold.

[0087] In conjunction with the first aspect, step S152 includes:

[0088] S1521, if T≤T1, control the instant heating element to operate.

[0089] S1522, if T>T2, control the instant heating element to shut off.

[0090] Where T is the water temperature value, T1 is the first water temperature threshold, T2 is the second water temperature threshold, and T1 < T2.

[0091] In this embodiment, T1 is set to 70°C and T2 is set to 80°C. That is, in the descaling mode, the instant heating tube 2 should be kept at 70°C-80°C to soften it in a warm environment and maintain a good descaling effect.

[0092] In conjunction with the first aspect, the ratio of the second duration to the third duration should be at least 8.

[0093] In this embodiment, the second soaking time t2 ÷ the third soaking time t3 ≥ 8:1. That is, the soaking time is at least 8 times the drainage time to ensure sufficient soaking, softening, and descaling.

[0094] In this embodiment, the end of the operation can be indicated by the set threshold number of times the water pump 4 is switched on or off, or by insufficient water in the water tank 1.

[0095] It is understood that this application also provides a descaling device for a cooking device, which is applied to a cooking device with an instant heating element and the cooking device has a control unit; the device includes: an acquisition module, a dissolving module, an inlet module, and an immersion descaling module.

[0096] The acquisition module is used to acquire the degree of scaling on the cooking equipment;

[0097] The dissolving module is used to open the first valve for a first duration to introduce water-soluble descaling particles into the first pipeline between the water tank of the cooking equipment and the instant heating element when the scaling degree is moderate or heavy.

[0098] The inlet module is used to close the first valve and, for a second duration, turn on the water pump on the first pipeline to introduce the mixture containing the descaling particles into the instant heating tube.

[0099] The scale removal module is used to shut down the water pump and control the operation of the instant heating tube to soak, soften and remove the scale inside the instant heating tube.

[0100] The discharge module is used to discharge the descaling mixture three hours after the water pump is turned off.

[0101] Wherein, the second duration is greater than the third duration.

[0102] Secondly, embodiments of this application provide a cooking device having an instant heating element and a control unit for performing the method described above.

[0103] In conjunction with the second aspect, the water tank 1 and the inlet of the instant heating element 2 in the cooking device are connected via a first pipe 3. A water pump 4 is installed on the first pipe 3 and is connected to the control unit. The water pump 4 is used to draw water from the water tank 1 and input it into the instant heating element 2 via the first pipe 3. In this application, the bottom of the water tank 1 is provided with a descaling particle box 5 for storing water-soluble descaling particles. The outlet of the descaling particle box 5 is connected to the first pipe 3 via a first branch pipe 6. A first valve 7 is installed on the first branch pipe 6 and is also connected to the control unit.

[0104] Thirdly, embodiments of this application provide an electronic device, combined with Figure 4 As shown, the electronic device includes a memory 131 and a processor 130. The memory 131 stores a computer program, and the processor 130 runs the computer program to make the electronic device perform the above-described method.

[0105] Furthermore, combined Figure 4 The electronic device shown also includes a bus 132 and a communication interface 133, with the processor 130, the communication interface 133 and the memory 131 connected via the bus 132.

[0106] The memory 131 may include high-speed random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 133 (which can be wired or wireless), such as the Internet, wide area network, local area network, or metropolitan area network. The bus 132 may be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0107] Processor 130 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 130 or by instructions in software form. Processor 130 may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 131, and processor 130 reads the information in memory 131 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0108] Fourthly, embodiments of this application provide a readable storage medium storing computer program instructions, which are read and executed by a processor to perform the above-described method.

[0109] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and apparatus described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0110] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0111] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0112] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0113] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for descaling cooking equipment, characterized in that, The method is applied to a cooking device having an instant heating element, the cooking device having a control unit; the method includes: The degree of scaling on the cooking equipment is obtained; If the scaling degree is moderate or heavy, the first valve is opened for a first duration to introduce water-soluble descaling particles into the first pipeline between the water tank of the cooking equipment and the instant heating element. Close the first valve and turn on the water pump on the first pipeline for a second time to pass the mixture containing the descaling particles into the instant heating tube. Turn off the water pump and control the instant heating tube to soak, soften and remove the scale inside the instant heating tube; The descaling mixture is discharged three hours after the water pump is shut down; Wherein, the second duration is greater than the third duration.

2. The method according to claim 1, characterized in that, After the step of discharging the descaling mixture three hours after the water pump is shut down, the method further includes: Obtain the first degree of scaling on the cooking equipment; If the first degree of scaling is still moderate or severe, control the first valve to be closed for a second period of time and then opened for a third period of time until the preset number of opening and closing times is reached or the water volume in the water tank is insufficient.

3. The method according to claim 1, characterized in that, The control unit has a pre-stored curve showing the relationship between temperature and the degree of scaling. The step of obtaining the degree of scaling of the cooking equipment includes: Obtain the current temperature and previous temperature of the instant heating element; Calculate the current temperature rise rate based on the current temperature, the previous temperature, and the time interval; If the current temperature rise rate is less than a set threshold, the scaling degree corresponding to the current temperature is taken as the scaling degree of the cooking equipment based on a preset relationship curve.

4. The method according to claim 3, characterized in that, The step of calculating the current temperature rise rate based on the current temperature, the previous temperature, and the time interval includes: Calculate the difference between the current temperature and the previous temperature to obtain the current temperature rise; Calculate the quotient of the current temperature rise and the time interval to obtain the current temperature rise rate.

5. The method according to claim 1, characterized in that, The degree of scaling includes: no scaling, light scaling, moderate scaling, and heavy scaling. After the step of obtaining the degree of scaling of the cooking equipment, the method further includes: If the scaling level is no scaling or slight scaling, maintain the current operating mode.

6. The method according to claim 1, characterized in that, The steps of shutting off the water pump and controlling the operation of the instant heating element to soak, soften, and remove scale from the instant heating element include: Obtain the water temperature value inside the instant heating tube; The operating status of the instant heating element is controlled based on the comparison between the water temperature value and the preset water temperature threshold.

7. The method according to claim 6, characterized in that, The step of controlling the operating state of the instantaneous heating element based on the comparison between the water temperature value and the preset water temperature threshold includes: If T≤T1, control the instantaneous heating element to operate; If T>T2, control the instant heating element to shut off; Where T is the water temperature value, T1 is the first water temperature threshold, T2 is the second water temperature threshold, and T1 < T2.

8. The method according to claim 1, characterized in that, The ratio of the second duration to the third duration is at least 8.

9. A cooking device, characterized in that, The cooking device has an instant heating element and a control unit, the control unit being used to perform the method as described in any one of claims 1-8.

10. The cooking apparatus according to claim 9, characterized in that, The water tank in the cooking device is connected to the water inlet of the instant heating tube through a first pipeline. A water pump is installed on the first pipeline and is connected to the control unit. The bottom of the water tank is provided with a descaling particle box for storing water-soluble descaling particles. The outlet of the descaling particle box is connected to the first pipeline through a first branch pipe. A first valve is provided on the first branch pipe, and the first valve is also connected to the control unit.

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