Cleaning device and cooking utensil

Abstract

The utility model provides a cleaning device and a cooking utensil, and belongs to the technical field of kitchen utensils. The cleaning device comprises a water inlet pipeline, an air inlet pipeline and a mixing valve. A mixing cavity is formed in the mixing valve, and the water inlet pipeline and the gas inlet pipeline are both communicated with the mixing cavity of the mixing valve, so that liquid and gas entering the mixing cavity are mixed to form a mixture. A cooling cavity is further formed in the mixing valve, a cooling component is arranged in the cooling cavity, and the cooling component is used for cooling liquid in the mixing valve. The mixing valve is further used for being connected with a spraying device, and the spraying device is used for spraying the mixture formed through mixing in the mixing valve to the equipment to be cleaned so as to clean the equipment to be cleaned. The cleaning device is good in cleaning effect, and user experience can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen utensil technical field especially, a kind of cleaning device and cooking utensil. BACKGROUND

[0002] Steam oven is a kind of kitchen electrical appliances that combines steam and oven functions, which can simultaneously or separately steam and bake two cooking methods. It can steam, bake, bake, barbecue and other various cooking operations, and can achieve low-temperature cooking by generating steam, retaining the nutrients and moisture of food. Because it provides more cooking options and higher efficiency, this multifunctional appliance is becoming more and more popular in modern kitchens. However, during use, various oil stains and dirt will inevitably accumulate in the cavity of the steam oven, which requires the installation of appropriate cleaning tools to clean the steam oven.

[0003] In related art, an automatic cleaning assembly is usually provided in the cavity of the steam oven, which sprays water into the cavity of the steam oven to clean the cavity of the steam oven.

[0004] However, oil stains and other difficult-to-clean stains are not well cleaned by water spraying, and manual cleaning is still required, resulting in poor user experience. INVENTION CONTENTS

[0005] The utility model provides a kind of cleaning device and cooking utensil, the cleaning effect of the cleaning device is good, can improve user experience.

[0006] The utility model embodiment first aspect provides a kind of cleaning device, comprising:

[0007] water inlet pipeline;

[0008] air inlet pipeline;

[0009] mixing valve, the mixing valve is equipped with mixing chamber, the water inlet pipeline and the air inlet pipeline are all communicated with the mixing chamber of the mixing valve, so that the liquid and gas in the mixing chamber are mixed to form a mixture;

[0010] The mixing valve is also equipped with cooling chamber, and the cooling chamber is equipped with cooling component, and the cooling component is used to cool the liquid in the mixing valve;

[0011] The mixing valve is also used to be connected with spray device, and the spray device is used to spray the mixture formed in the mixing valve to the equipment to be cleaned to clean the equipment to be cleaned.

[0012] The cleaning device in the embodiments of the present application can dissolve gas into water to form water with gas, for example, saturated water or supersaturated water, through the arrangement of the gas inlet pipeline, the water inlet pipeline and the mixing valve. When the saturated water or the supersaturated water impacts on an object, the gas is released from the water, which is commonly known as cavitation. Cavitation is a physical phenomenon that gas bubbles are formed in liquid when the flow speed of the liquid increases or the pressure decreases to below the vapor pressure of the liquid. These gas bubbles then collapse rapidly to release gas, generate high-speed microjet and pressure shock wave, and can reach every corner of the equipment to be cleaned, thereby effectively removing stubborn stains. The arrangement of the cooling cavity in the mixing valve can reduce the temperature of the liquid and the gas in the mixing valve, improve the mixing effect, thereby increasing the amount of dissolved gas in the liquid and enhancing the cavitation effect, thereby improving the cleaning effect and user experience. The cleaning device provided in the embodiments of the present application can cool the mixing cavity by arranging the cooling cavity in the mixing valve, thereby reducing the temperature of the liquid in the mixing cavity, improving the gas-liquid mixing effect, thereby increasing the amount of dissolved gas in the liquid and enhancing the cavitation effect, thereby improving the cleaning effect and user experience.

[0013] In a possible implementation, the mixing valve comprises a water inlet, a water outlet and an air inlet; wherein,

[0014] The air inlet is located between the water inlet and the water outlet in the flow direction of the liquid.

[0015] The cooling cavity is located between the water inlet and the air inlet, and / or the cooling cavity is located between the air inlet and the water outlet.

[0016] In this way, the liquid can be injected with gas when passing through the air inlet, which can improve the mixing effect of the liquid and the gas, thereby increasing the amount of dissolved gas in the liquid and enhancing the cavitation effect, thereby improving the cleaning effect and user experience.

[0017] In a possible implementation, the cooling cavity comprises a first cooling cavity and a second cooling cavity, and the first cooling cavity and the second cooling cavity are arranged at intervals in the flow direction of the liquid.

[0018] The first cooling cavity is located between the water inlet and the air inlet, and the second cooling cavity is located between the air inlet and the water outlet.

[0019] By setting the cooling cavity as a structure including a first cooling cavity and a second cooling cavity, the liquid entering the mixing cavity from the water inlet can be cooled by the first cooling cavity, and the mixed liquid in the mixing cavity can be cooled by the second cooling cavity, thereby improving the dissolution amount of the gas in the liquid and improving the mixing effect.

[0020] In a possible implementation, the mixing valve includes a first communication pipe, the first communication pipe includes a first end and a second end, the first end is in communication with the water inlet pipe, and the second end is in communication with the mixing cavity.

[0021] The diameter of the second end of the first communication pipe is smaller than the diameter of the first end of the first communication pipe.

[0022] By setting the diameter of the second end of the first communication pipe to be smaller than the diameter of the first end of the first communication pipe, the water flow rate at the second end of the first communication pipe is increased when the liquid enters the mixing valve from the water inlet, thereby improving the impact force at the air inlet and improving the mixing effect.

[0023] In a possible implementation, the mixing valve further includes a second communication pipe, the second communication pipe includes a third end and a fourth end, the third end is in communication with the air inlet pipe, and the fourth end is located in the mixing cavity.

[0024] The fourth end is provided with an air outlet, and the air outlet is away from the flow direction of the liquid.

[0025] The angle between the flow direction of the gas flow entering the mixing cavity from the fourth end and the flow direction of the liquid is less than 90°.

[0026] In this way, the air inlet pipe can be conveniently connected, the fourth end of the second communication pipe is arranged in the mixing cavity, so that the liquid and the gas can be fully contacted, thereby improving the mixing effect of the gas and the liquid. The air outlet is arranged away from the flow direction of the liquid, and the angle between the flow direction of the gas flow entering the mixing cavity from the fourth end and the flow direction of the liquid is less than 90°. In this way, when the high-speed water flow impacts the second communication pipe, a negative pressure area is formed outside the air outlet, which is beneficial to the mixing of the gas and the liquid and improves the mixing effect.

[0027] In a possible implementation, the fourth end of the second communication pipe is provided with a baffle.

[0028] The baffle is provided with a plurality of first through holes, and the plurality of first through holes are configured as the air outlet.

[0029] The baffle is arranged away from the flow direction of the liquid and at an angle to the central axis of the second communication pipe, and the flow direction of the gas flow entering the mixing cavity from the fourth end is perpendicular to the baffle.

[0030] The flow direction of the liquid is perpendicular to the central axis of the second communication pipe.

[0031] By arranging the baffle at the fourth end and arranging the baffle away from the flow direction of the liquid and at an angle to the central axis of the second communication pipe, a negative pressure area is formed on the side of the baffle away from the flow direction of the liquid when the high-speed water flow impacts the second communication pipe, which is beneficial to the mixing of the gas and the liquid. By arranging a plurality of first through holes on the baffle, the gas can be easily dispersed when entering the mixing cavity, thereby fully mixing with the liquid, and the mixing effect can be improved.

[0032] In a possible implementation, the mixing valve is provided with an air inlet channel, and the air inlet channel is in communication with the air inlet pipeline.

[0033] A second through hole is formed in the inner wall of the air inlet channel, and the second through hole is in communication with the mixing cavity in the mixing valve.

[0034] The size of the air inlet channel is greater than the size of the connection between the air inlet pipeline and the air inlet channel, so that the gas entering from the air inlet pipeline expands in diameter through the air inlet channel and then enters the mixing cavity through the second through hole.

[0035] By forming the second through hole in the inner wall of the air inlet channel, the gas flow can be dispersed through the plurality of second through holes and injected into the liquid from multiple directions, thereby improving the mixing effect. By setting the size of the air inlet channel to be greater than the size of the connection between the air inlet pipeline and the air inlet channel, the gas entering from the air inlet pipeline can expand in diameter and then enter the mixing cavity. The gas expansion refers to the gas entering from a small-diameter pipeline into a larger space. Since the temperature decreases under adiabatic conditions, the mixing cavity can be cooled, which is beneficial to improving the dissolution rate of the gas in the liquid and thereby improving the mixing effect of the gas and the liquid. In addition, the gas flow rate decreases after expansion, which helps to optimize the heat exchange process and improve the heat exchange efficiency.

[0036] In a possible implementation, the air inlet channel is arranged outside part of the mixing cavity. The mixing cavity includes a throat. In the axial direction of the mixing cavity, the diameter of the mixing cavity on both sides of the throat gradually increases away from the throat, so that the diameter of the throat is the smallest. The second through hole is arranged at the throat, so that the air inlet channel and the mixing cavity are in communication at the throat.

[0037] It should be noted that the flow direction of the liquid is parallel to the axial direction of the mixing cavity.

[0038] By setting the second through hole at the throat, the gas in the air inlet channel can further enter the mixing chamber at the throat. Since the throat is a structure of first contraction and then expansion in the flow direction of the liquid (similar to the structure of a Venturi tube), the throat is the narrowest part of the mixing chamber, and the flow rate of the fluid reaches the maximum. According to Bernoulli's equation, the kinetic energy of the fluid increases, resulting in a decrease in static pressure. Therefore, a low-pressure area is formed at the throat, so that the gas can quickly enter the throat, thereby enabling the gas and the liquid to be fully mixed. In addition, the turbulence generated at the throat can also enhance the mixing effect between the gas and the liquid.

[0039] In a possible implementation, the cleaning device further comprises a water tank; wherein,

[0040] The water tank is connected with the water inlet pipeline, and a cooling module is arranged between the water tank and the water inlet pipeline, and the cooling module is used to cool the liquid entering the water inlet pipeline.

[0041] By arranging the cooling module between the water tank and the water inlet pipeline, the liquid entering the mixing valve can be cooled, thereby increasing the amount of gas dissolved in the liquid, improving the mixing effect, and further improving the cleaning effect.

[0042] In a possible implementation, the cleaning device further comprises a gas source; wherein,

[0043] The gas source is in communication with the air inlet pipeline;

[0044] A pressure control valve is arranged between the gas source and the air inlet pipeline, and the pressure control valve is used to control the pressure of the gas entering the air inlet pipeline.

[0045] By arranging the gas source, the air inlet pipeline can be provided with gas. By arranging the pressure control valve, the gas entering the mixing chamber can be given a certain pressure, so that the gas and the liquid can be fully mixed, and the amount of gas dissolved in the liquid can be increased.

[0046] In a possible implementation, the cleaning device further comprises a water collecting part and a water return pipeline; wherein,

[0047] One end of the water return pipeline is in communication with the water collecting part, and the other end is in communication with the mixing valve;

[0048] The water collecting part is used to collect the sewage after cleaning, and the water return pipeline is used to recycle the sewage;

[0049] A first filter is arranged between the water return pipeline and the water collecting part, and the first filter is used to filter the sewage collected from the water collecting part.

[0050] In a possible implementation, the backwater pipeline is provided with a second filter and a backflow pump; wherein

[0051] The backflow pump is arranged between the second filter and the mixing valve.

[0052] The second filter is configured to filter the liquid in the backwater pipeline, and the backflow pump is configured to draw the liquid in the backwater pipeline back to the mixing valve.

[0053] In this way, the cleanliness of the liquid in the backwater pipeline can be improved, and the water resource can be reused, thereby saving resources.

[0054] In a possible implementation, the water outlet pipeline comprises a throttle valve; wherein

[0055] The throttle valve is connected to the spraying device.

[0056] In this way, the spraying pressure of the spraying device can be increased, the impact force of the sprayed liquid column can be improved, and the cleaning effect can be improved.

[0057] In a possible implementation, the spraying device is a rotatable structure; wherein

[0058] The spraying device can rotate by 360 degrees relative to the water outlet pipeline.

[0059] In this way, the cleaning range can be expanded, and the cleaning effect can be improved.

[0060] In a possible implementation, the spraying device is a telescopic structure; wherein

[0061] The spraying device can move in the axial direction of the water inlet pipeline.

[0062] In this way, the cleaning range can be expanded, and the cleaning effect can be improved.

[0063] The second aspect of the embodiments of the present application provides a cooking utensil, comprising an inner container and the cleaning device of any one of the first aspect.

[0064] The cleaning device is configured to clean the inner container.

[0065] The cooking utensil provided by the embodiment of the application can clean the inner container through the cleaning assembly after cooking, and due to the cleaning device, the gas can be dissolved in water through the setting of the air inlet pipeline, the water inlet pipeline and the mixing valve, so that water with gas, for example, saturated water or supersaturated water, is formed, when the saturated water or supersaturated water impacts on an object, the gas is released from the water, and cavitation is generated. The cavitation is a physical phenomenon that when the flow speed of liquid increases or the pressure decreases to below the vapor pressure of the liquid, bubbles are formed in the liquid. These bubbles then collapse rapidly, releasing gas, generating high-speed microjets and pressure shock waves, which can penetrate into every corner of the equipment to be cleaned, and then stubborn stains can be effectively removed. By setting the cooling cavity in the mixing valve, the temperature of the liquid and the gas in the mixing valve can be reduced, the mixing effect is improved, the amount of dissolved gas in the liquid is increased, and the cavitation effect is enhanced, so that the cleaning effect is improved, and the user experience is improved.

[0066] The structure of the utility model and its other utility model purposes and beneficial effects will be more obvious and easy to understand through the description of the preferred embodiment in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0067] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0068] Figure 1 It is a part structure schematic view of a cooking utensil provided by the embodiment of the utility model;

[0069] Figure 2 It is a top view of a cooking utensil provided by the embodiment of the utility model;

[0070] Figure 3 It is another angle part structure schematic view of a cooking utensil provided by the embodiment of the utility model;

[0071] Figure 4 It is a structure schematic view of a water collecting part of a cleaning device provided by the embodiment of the utility model;

[0072] Figure 5 It is a bottom view of a cooking utensil provided by the embodiment of the utility model;

[0073] Figure 6 It is a frame structure schematic view of a cleaning device provided by the embodiment of the utility model;

[0074] Figure 7is a cross-sectional structure schematic view of a mixing valve of a cleaning device provided by the embodiment of the utility model,

[0075] Figure 8 is a cross-sectional structure schematic view of a mixing valve of a cleaning device provided by the embodiment of the utility model.

[0076] Mark for explaining:

[0077] 100 - cleaning device, 10 - water inlet pipeline, 20 - cooling module,

[0078] 21 - booster pump, 30 - mixing valve, 31 - cooling cavity,

[0079] 31a - first cooling cavity, 31b - second cooling cavity,

[0080] 32 - mixing cavity, 33 - outer wall of mixing cavity, 331 - side wall,

[0081] 333 - first outer wall, 334 - second outer wall,

[0082] 3341 - inlet, 3342 - throat, 3343 - outlet,

[0083] 3344 - second through hole, 341 - water inlet, 342 - water outlet,

[0084] 343 - air inlet, 35 - first communication pipe, 35a - first end,

[0085] 35b - second end, 36 - second communication pipe, 36a - third end,

[0086] 36b - fourth end, 361 - baffle, 362 - first through hole,

[0087] 39 - annular outer wall, 391 - air inlet channel,

[0088] 40 - water outlet pipeline, 41 - throttle valve,

[0089] 42 - pressure stabilizing storage tank, 50 - air inlet pipeline, 51 - pressure control valve,

[0090] 60 - spraying device, 71 - water return pipeline, 72 - water collecting part,

[0091] 721 - strip-shaped through hole, 722 - first filter, 73 - second filter,

[0092] 74 - backflow pump, 81 - water tank, 82 - air source,

[0093] 200 - cooking utensil, 210 - inner container, 220 - cooking space. DETAILED DESCRIPTION

[0094] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0095] The cleaning device and the cooking appliance in the embodiments of the present application will be further described below with reference to the drawings.

[0096] Figure 1 is a schematic view of a frame structure of a cooking appliance 200 provided in the embodiments of the present application.

[0097] As shown in Figure 1 , the cooking appliance 200 provided in the embodiments of the present application can include an inner container 210 and a cleaning device 100 arranged in the inner container 210, wherein the cleaning device 100 is used to clean the inner container 210. Exemplarily, part of the structure of the cleaning device 100 can be located at the top of the inner container 210, and part of the structure is located in the inner container 210, thereby performing the cleaning work on the inner container 210.

[0098] As shown in Figure 1 , part of the structure of the cleaning device 100 is located at the top of the inner container 210, and the inner container 210 includes a side wall 331, and a plurality of side walls 331 enclose a cooking space 220. In use, food and the like can be placed in the cooking space 220 to cook the food.

[0099] The cooking appliance 200 in the embodiments of the present application can be an oven, a steamer, a steaming and baking appliance, etc. In the embodiments of the present application, the specific type of the cooking appliance 200 is not further limited.

[0100] The cooking appliance 200 in the embodiments of the present application can realize self-cleaning by arranging the cleaning device 100, without manual cleaning, thereby improving the user experience.

[0101] The cleaning device 100 will be described in detail below with reference to the drawings.

[0102] Figure 2 is a top view of a cooking appliance 200 provided in the embodiments of the present application.

[0103] As shown in Figure 2As shown, this embodiment of the present invention provides a cleaning device 100, which may include a water inlet pipe 10, an air inlet pipe 50, and a mixing valve 30. The mixing valve 30 has a mixing chamber 32. Both the water inlet pipe 10 and the air inlet pipe 50 are connected to the mixing chamber 32. The water inlet pipe 10 is used to inject liquid (e.g., water) into the mixing chamber 32, and the air inlet pipe 50 is used to inject gas into the mixing chamber 32. The mixing chamber 32 is used to mix the liquid and gas to form a mixture containing gaseous water, which may be saturated water, supersaturated water, or unsaturated water.

[0104] The mixing valve 30 has a cooling chamber 31, which contains a cooling component (not shown in the figure). This cooling component cools the liquid in the mixing valve, including the liquid entering the mixing chamber 32 through the water inlet pipe 10, the mixture already formed in the mixing chamber 32, and the gas-liquid mixture currently being mixed. The mixing valve 30 is also connected to a spray device 60, which sprays the mixture formed in the mixing valve 30 onto the equipment to be cleaned. This equipment is a cooking utensil.

[0105] For example, the mixing valve 30 can be connected to the spray device 60 via the water outlet pipe 40, and the spray device 60 is used to spray and clean the equipment to be cleaned.

[0106] The cleaning device 100 in this embodiment of the application, by providing an air inlet pipe 50, a water inlet pipe 10, and a mixing valve 30, can dissolve gas into water to form water containing gas, such as saturated water or supersaturated water. When the saturated or supersaturated water impacts an object, the gas is released from the water; this phenomenon is commonly referred to as "cavitation." Cavitation is a physical phenomenon in which bubbles form in a liquid when the liquid flow velocity increases or the pressure decreases below the liquid's vapor pressure. These bubbles then rapidly collapse, releasing gas and generating high-speed microjet jets and pressure shock waves that can penetrate deep into every corner of the equipment to be cleaned, thereby effectively removing stubborn stains.

[0107] By including a cooling chamber 31 in the mixing valve 30, the temperature of the liquid and gas inside the mixing valve 30 can be reduced, the mixing effect can be improved, the amount of gas dissolved in the liquid can be increased, the cavitation effect can be enhanced, the cleaning effect can be improved, and the user experience can be improved.

[0108] like Figure 2 As shown, the cleaning device 100 may further include a water tank 81, which is connected to the water inlet pipe 10 and is used to supply water to the water inlet pipe 10. A cooling module 20 is provided between the water tank 81 and the water inlet pipe 10, and the cooling module 20 is used to cool the liquid entering the water inlet pipe 10.

[0109] By setting the cooling module 20 between the water tank 81 and the water inlet pipeline 10, the liquid entering the mixing valve 30 can be cooled, thereby improving the dissolution amount of the gas in the liquid, improving the mixing effect, and further improving the cleaning effect.

[0110] The cleaning device 100 provided by the embodiment of the present application can further include a gas source 82, wherein the gas source 82 is in communication with the gas inlet pipeline 50, and the gas source 82 is configured to provide the gas inlet pipeline 50 with gas. A pressure control valve 51 can be further arranged between the gas source 82 and the gas inlet pipeline 50, and the pressure control valve 51 is configured to control the pressure of the gas entering the gas inlet pipeline 50.

[0111] By arranging the gas source 82, the gas inlet pipeline 50 can be provided with gas, and by arranging the pressure control valve 51, the gas entering the mixing valve 30 can be provided with a certain pressure, so that the gas and the liquid can be fully mixed, and the dissolution amount of the gas in the liquid can be improved.

[0112] It should be noted that the gas provided by the gas source 82 can be carbon dioxide. Table 1 shows the solubility of carbon dioxide in water at different temperatures. Table 2 shows the solubility of carbon dioxide in water at different temperatures and pressures.

[0113] It should be noted that the "solubility" refers to the maximum amount of a substance (solute) that can be dissolved in another substance (solvent) to form a homogeneous solution under certain conditions (usually a certain temperature and pressure). It is usually expressed in terms of the amount of solute that can be dissolved in a unit volume of solvent, and the common units include grams per liter (g / L) or moles per liter (mol / L).

[0114] Table 1

[0115]

[0116] Table 2

[0117]

[0118] As shown in Table 1 and Table 2, it can be seen that the solubility of carbon dioxide in water gradually increases with the decrease of temperature under the same atmospheric pressure, that is, the lower the temperature, the greater the solubility. Therefore, the dissolution amount of carbon dioxide in water can be increased by reducing the temperature of the water, thereby increasing the content of the gas in the water, increasing the effect of cavitation, and further improving the cleaning effect.

[0119] In addition, the solubility of carbon dioxide in water is different under the same temperature and different pressures, so the dissolution amount of carbon dioxide in water can be controlled according to the pressure and temperature.

[0120] It should be noted that, in order to ensure that the mixed liquid can provide effective cleaning effect, the solubility of carbon dioxide needs to reach 3.0-4.0V / V. But at normal temperature and pressure (25 degrees Celsius, one standard atmosphere), the saturated solubility of carbon dioxide in water is only 0.759V / V. Therefore, in order to increase the carbon dioxide content in water, the water temperature needs to be maintained at 0-5℃, and the water pressure needs to be controlled at 2-5kg / cm 2 .

[0121] It should be noted that V / V is volume ratio (Volume / Volume), which refers to the volume of gas dissolved in a certain volume of liquid. "2-5kg / cm 2 " refers to 2 to 5 kilograms of force per square centimeter.

[0122] In one possible implementation, the water outlet pipeline 40 includes a throttle valve 41. The throttle valve 41 is connected with the spraying device 60. In this way, the spraying pressure of the spraying device 60 can be increased, the impact force of the sprayed liquid column can be improved, and the cleaning effect can be improved.

[0123] Figure 3 is another angle of the structure of the cooking utensil provided by the embodiment of the utility model.

[0124] As Figure 3 shown, the spraying device 60 is arranged at the top of the inner container 210, and the water spraying end of the spraying device 60 faces the cooking space 220 of the inner container 210, so as to clean the cooking space 220.

[0125] For example, the spraying device 60 is a rotatable structure. The spraying device 60 can rotate by 360° relative to the water outlet pipeline 40. In this way, the cleaning range can be expanded, and the cleaning effect can be improved.

[0126] In one possible implementation, the spraying device 60 can also be a telescopic structure. The spraying device 60 can move along the axis of the water inlet pipeline 10 in a telescopic manner. In this way, the cleaning range can be expanded, and the cleaning effect can be improved.

[0127] It should be noted that, in the embodiment of the present application, the rotating structure and the telescopic structure of the spraying device 60 are not limited further, as long as they can rotate by 360° and be telescopic.

[0128] In one possible implementation, the spraying device 60 is combined with Figure 1 and Figure 2As shown, the cleaning device 100 can further include a water collecting part 72 and a water return pipeline 71. One end of the water return pipeline 71 is in communication with the water collecting part 72, and the other end is in communication with the mixing valve 30. The water collecting part 72 is used to collect the sewage after cleaning, and the water return pipeline 71 is used to recycle the sewage. A first filter 722 is arranged between the water return pipeline 71 and the water collecting part 72, and the first filter 722 is used to filter the sewage collected from the water collecting part 72.

[0129] As shown in the drawings, Figure 4 As shown, the water collecting part 72 is recessed from the outside to the middle, so that the sewage in the cooking space 220 can be conveniently collected. A plurality of strip-shaped through holes 721 are arranged on the water collecting part 72, so that the sewage can be conveniently collected from the water collecting part 72. The first filter 722 can be arranged at the recessed part of the water collecting part 72, and is used to filter the sewage for the first time.

[0130] It should be noted that the first filter 722 is mainly used to filter large particles of dirt.

[0131] Figure 5 is a bottom view of the cooking utensil provided by the embodiment of the utility model.

[0132] As shown in the drawings, Figure 5 As shown, the water return pipeline 71 is provided with a second filter 73 and a backflow pump 74. The backflow pump 74 is arranged between the second filter 73 and the mixing valve 30, the second filter 73 is used to filter the liquid in the water return pipeline 71, and the backflow pump 74 is used to suck the liquid in the water return pipeline 71 to the mixing valve 30.

[0133] By arranging the second filter 73, the cleanliness of the liquid in the water return pipeline 71 can be improved, and then the water resource can be reused, and then the resource can be saved.

[0134] As shown in the drawings, the water level detection device (not shown in the drawings) can also be arranged in the second filter 73, and the water level detection device is used to detect whether there is water in the water collecting part 72. The detection device can be connected with the backflow pump 74, and when there is water in the water collecting part 72, the backflow pump 74 can be controlled to work, so as to suck the water in the water return pipeline 71 to the mixing valve 30, and the mixing operation is repeatedly performed.

[0135] It should be noted that in order to ensure that the mixed liquid can provide effective cleaning effect, the solubility of carbon dioxide needs to reach 3.0-4.0V / V. However, under normal temperature and pressure (25 degrees Celsius, one standard atmosphere), the saturated solubility of carbon dioxide in water is only 0.759V / V. Therefore, in order to improve the content of carbon dioxide in water, the water temperature needs to be maintained at 0-5℃, and the water pressure needs to be controlled at 2-5kg / cm 2 .

[0136] In use of the cleaning device 100, the water tank 81 can be adjusted so that the water output has a pressure of 2-5 kg / cm 2 and a temperature of 0-5°C, and then carbon dioxide is output from the gas source 82 (carbon dioxide bottle) through the pressure control valve 51. The carbon dioxide and water are fully mixed in the mixing valve 30, so that the carbon dioxide is dissolved in the water to generate carbonated water, which is kept in the pressure stabilizing storage tank 42 and then the output flow rate of the carbonated water is controlled and adjusted through the throttle valve 41. The water outlet pipeline 40 can include the pressure stabilizing storage tank 42 and the throttle valve 41.

[0137] In addition, it should be noted that in the water outlet pipeline 40, multiple mixing valves 30 can be arranged to improve the mixing effect.

[0138] Of course, in the gas embodiment, the water temperature and water pressure can also be controlled in other ranges, and in the embodiment of the present application, the specific values of the water temperature and water pressure are not further limited.

[0139] As shown in Figure 6 , in use of the cleaning device 100, gas can be introduced into the gas inlet pipeline 50 through the gas source 82, which can be carbon dioxide. The water is usually provided by the water tank 81 (such as a water purification tank 81 or a water purifier), and is adjusted to an appropriate pressure and temperature through the cooling module 20 and the booster pump 21. Then the gas and the liquid are mixed through the mixing valve 30, and then enter the water outlet pipeline 40 and finally reach the spraying device 60.

[0140] The cleaning device provided in the embodiment of the present application has a remarkable cleaning effect, can not use or reduce the use of scale removers, reduces chemical residues and environmental impact. The use of cavitation cleaning can reduce the need for secondary or multiple flushing, simplifying the cleaning process. The use of chemical cleaning agents is reduced, which is more environmentally friendly.

[0141] The cleaning device 100 in the embodiment of the present application cleans by cavitation, which does not require long-term flushing compared with the traditional flushing system, thereby saving water resources.

[0142] In one possible implementation, the mixing valve 30 is provided with a mixing chamber 32. The water inlet pipeline 10, the gas inlet pipeline 50 and the water outlet pipeline 40 are all in communication with the mixing chamber 32, and the cooling chamber 31 is arranged outside the mixing chamber 32.

[0143] The cleaning device 100 provided in the embodiment of the present application is cooled by arranging a cooling part outside the mixing chamber 32 and forming a cooling chamber 31 outside the outer wall 33 of the mixing chamber, which can cool the mixing chamber 32, thereby reducing the temperature of the liquid and gas in the mixing chamber 32, improving the mixing effect, thereby improving the amount of gas dissolved in the liquid, thereby enhancing the cavitation effect, thereby improving the cleaning effect and user experience.

[0144] In a possible implementation, the mixing valve 30 comprises a water inlet 341, a water outlet 342 and an air inlet 343. Wherein, in the flow direction of the liquid, the air inlet 343 is located between the water inlet 341 and the water outlet 342. The cooling cavity 31 is located between the water inlet 341 and the air inlet 343, and / or the cooling cavity 31 is located between the air inlet 343 and the water outlet 342.

[0145] For example, the cooling cavity 31 is located between the water inlet 341 and the air inlet 343 (see Figure 7 For example, the cooling cavity 31 is located between the water inlet 341 and the air inlet 343 (see Figure 8 For example, the cooling cavity 31 is located between the water inlet 341 and the air inlet 343 (see

[0146] In this way, the liquid can be injected into the gas when passing through the air inlet 343, the mixing effect of the liquid and the gas can be improved, the amount of gas dissolved in the liquid can be increased, the cavitation effect can be enhanced, the cleaning effect can be improved, and the user experience can be improved.

[0147] The mixing valve 30 will be described in detail below in combination with the drawings.

[0148] Figure 7 is a cross-sectional structure schematic view of a mixing valve of a cleaning device provided by an embodiment of the present application.

[0149] As Figure 7 shown, the mixing valve 30 can be a tubular structure. Wherein, the liquid in the mixing valve 30 flows along the axial direction of the mixing valve 30.

[0150] For example, the mixing valve 30 can comprise a first communication pipe 35, the first communication pipe 35 comprises a first end 35a and a second end 35b, the first end 35a is in communication with the water inlet pipe 10 (not shown in the figure), and the second end 35b is in communication with the mixing cavity 32. The diameter of the second end 35b of the first communication pipe 35 is smaller than the diameter of the first end 35a of the first communication pipe 35.

[0151] By setting the diameter of the second end 35b of the first communication pipe 35 to be smaller than the diameter of the first end 35a of the first communication pipe 35, when the liquid enters the mixing valve 30 from the water inlet 341, the water flow rate at the second end 35b of the first communication pipe 35 is increased, the impact force at the air inlet 343 is increased, and the mixing effect is improved.

[0152] In a possible implementation, the mixing valve 30 can further include a second communication pipe 36, the second communication pipe 36 including a third end 36a and a fourth end 36b, the third end 36a being in communication with the air inlet pipe 50 (not shown in the figure), and the fourth end 36b being located in the mixing chamber 32. The fourth end 36b is provided with an air outlet, the air outlet being arranged to face away from the flow direction of the liquid; the flow direction of the air flow entering the mixing chamber 32 from the fourth end 36b is less than 90° with respect to the flow direction of the liquid. Figure 7 The arrowed dashed line in the first communication pipe 35 represents the flow direction of the liquid, the flow direction of the liquid being parallel to the axial direction of the first communication pipe; the arrowed dashed line in the second communication pipe 36 represents the flow direction of the air.

[0153] In this way, the air inlet pipe 50 can be conveniently connected; by arranging the fourth end 36b of the second communication pipe 36 in the mixing chamber 32, the liquid and the air can be fully contacted, thereby improving the mixing effect of the air and the liquid. By arranging the air outlet and arranging the air outlet to face away from the flow direction of the liquid, and by arranging the flow direction of the air flow entering the mixing chamber 32 from the fourth end 36b to be less than 90° with respect to the flow direction of the liquid, a negative pressure area is formed outside the air outlet when the high-speed water flow impacts the second communication pipe, which is conducive to the mixing of the air and the liquid, and improves the mixing effect.

[0154] For example, the fourth end 36b of the second communication pipe 36 is provided with a baffle 361. The baffle 361 is provided with a plurality of first through holes 362, the plurality of first through holes 362 being in communication with the mixing chamber 32. The baffle 361 is arranged to face away from the flow direction of the liquid and is arranged at an angle with respect to the central axis of the second communication pipe 36, the flow direction of the air flow entering the mixing chamber 32 from the fourth end 36b being perpendicular to the baffle 361. The flow direction of the liquid is perpendicular to the central axis of the second communication pipe 36.

[0155] For example, the second communication pipe 36 can be arranged along the radial direction of the mixing valve 30, the opening of the third end 36a of the second communication pipe 36 being configured as an air inlet 343, and the first through holes 362 being configured as air outlets for injecting air into the mixing chamber 32.

[0156] By arranging the mixing valve 30 as a tubular structure, the structure of the mixing valve 30 can be simplified, thereby reducing the cost. By arranging the second communication pipe 36, the air inlet pipe 50 can be conveniently connected; by arranging the fourth end 36b of the second communication pipe 36 in the mixing chamber 32, the mixing effect of the air and the liquid can be improved.

[0157] By setting the baffle 361 at the fourth end 36b and directing the baffle 361 towards the water outlet 342, a negative pressure area is formed on the side of the baffle 361 facing the water outlet 342 when the high-speed water flow hits the second communication pipe 36, which is conducive to the mixing of gas and liquid. By setting a plurality of first through holes 362 on the baffle 361, the gas can be easily dispersed when it enters the mixing chamber 32, thereby fully mixing with the liquid and improving the mixing effect.

[0158] In one possible implementation, the cooling chamber 31 can include a first cooling chamber 31a and a second cooling chamber 31b, which are arranged in the flow direction of the liquid. The first cooling chamber 31a is located between the water inlet 341 and the air inlet 343, and the second cooling chamber 31b is located between the air inlet 343 and the water outlet 342.

[0159] By setting the cooling chamber to include the first cooling chamber 31a and the second cooling chamber 31b, the liquid entering the mixing chamber 32 from the water inlet 341 can be cooled by the first cooling chamber 31a, and the mixed liquid in the mixing chamber 32 can be cooled by the second cooling chamber 31b, thereby increasing the amount of dissolved gas in the liquid and improving the mixing effect.

[0160] For example, the mixing valve 30 includes an annular outer wall 39, and the mixing chamber 32 is located inside the annular outer wall 39. Part of the structure of the annular outer wall 39 can serve as the outer wall 33 of the mixing chamber, and part of the structure of the annular outer wall 39 is used to form the cooling chamber 31.

[0161] As shown in Figure 7 The outer wall 33 of the mixing chamber can include a first outer wall 333, which surrounds the second end 35b of the first communication pipe 35, and has a gap between the first outer wall 333 and the annular outer wall 39 in the radial direction of the annular outer wall 39, so that the first cooling chamber 31a is formed between the first outer wall 333, part of the first communication pipe 35 and the annular outer wall 39.

[0162] For example, the outer wall 33 of the mixing chamber can also include a second outer wall 334, which is located between the second communication pipe 36 and the water outlet 342. The second outer wall 334 includes an inlet 3341, a throat 3342 and an outlet 3343, the inlet 3341 and the outlet 3343 are located on both sides of the throat 3342, and the cross-sectional area of the second outer wall 334 gradually decreases from the inlet 3341 to the throat 3342 and gradually increases from the throat 3342 to the outlet 3343. The second cooling chamber 31b is formed between the second outer wall 334 and the annular outer wall 39.

[0163] It should be noted that the air inlet 343 can also be arranged at other positions.

[0164] Figure 8 is a cross-sectional structure schematic view of a mixing valve of a cleaning device provided by an embodiment of the present application.

[0165] As shown in Figure 8 , the mixing valve 30 is a tubular structure, wherein the liquid in the mixing valve 30 flows along the axial direction of the mixing valve 30.

[0166] Exemplarily, the mixing valve 30 can include a first communication pipe 35, the first communication pipe 35 including a first end 35a and a second end 35b, the first end 35a being in communication with the water inlet pipe 10 (not shown in the figure), and the second end 35b being in communication with the mixing chamber 32. The diameter of the second end 35b of the first communication pipe 35 is smaller than the diameter of the first end 35a of the first communication pipe 35.

[0167] By setting the diameter of the second end 35b of the first communication pipe 35 to be smaller than the diameter of the first end 35a of the first communication pipe 35, when the liquid enters the mixing valve 30 from the water inlet 341, the water flow rate at the second end 35b of the first communication pipe 35 is increased, and thus the impact force at the air inlet 343 is increased, and thus the mixing effect is improved.

[0168] In a possible implementation, the mixing valve 30 is provided with an air inlet passage 391, the air inlet passage 391 being in communication with the air inlet pipe 50. A second through hole 3344 is formed in the inner wall of the air inlet passage 391, the second through hole 3344 being in communication with the mixing chamber 32 in the mixing valve 30. The size of the air inlet passage 391 is greater than the size of the connection between the air inlet pipe 50 and the air inlet passage 391, so that the gas entering from the air inlet pipe 50 expands after passing through the air inlet passage 391, and then enters the mixing chamber 32 through the second through hole 3344.

[0169] In this way, the gas flow can be dispersed through the plurality of second through holes 3344, and the gas can be injected into the liquid from multiple directions, so as to improve the mixing effect. By setting the size of the air inlet passage to be greater than the size of the connection between the air inlet pipe and the air inlet passage, the gas entering from the air inlet pipe can expand after the diameter is increased, and then enter the mixing chamber. The diameter expansion of the gas refers to the gas entering from a small-diameter pipe into a larger space. Since the expansion of the gas will cause the temperature to decrease under adiabatic conditions, the mixing chamber can be cooled, which is beneficial to improve the dissolution rate of the gas in the liquid, and thus improve the mixing effect of the gas and the liquid. In addition, the flow rate of the gas is reduced after the diameter is increased, which is helpful to optimize the heat exchange process and improve the heat exchange efficiency.

[0170] In a possible implementation, the air inlet channel 391 is arranged outside the partial mixing chamber 32. The mixing chamber 32 includes a throat 3342. In the axial direction of the mixing chamber 32, the diameter of the mixing chamber 32 on both sides of the throat 3342 gradually increases away from the throat 3342, so that the diameter of the throat 3342 is the smallest. A second through hole 3344 is arranged at the throat 3342 to enable the air inlet channel 391 and the mixing chamber 32 to communicate at the throat.

[0171] It should be noted that the flow direction of the liquid is parallel to the axial direction of the mixing chamber 32.

[0172] By arranging the second through hole 3344 at the throat 3342, the gas in the air inlet channel 391 can enter the mixing chamber at the throat. Since the throat is a structure that is first contracted and then expanded in the flow direction of the liquid (similar to the structure of a Venturi tube), the throat is the narrowest part of the mixing chamber, and the flow rate of the fluid reaches the maximum. According to Bernoulli's equation, the kinetic energy of the fluid increases, resulting in a decrease in the static pressure. Therefore, a low-pressure area is formed at the throat, so that the gas can quickly enter the throat, thereby enabling the gas and the liquid to be fully mixed. In addition, the turbulence generated at the throat can enhance the mixing effect between the gas and the liquid.

[0173] In this way, the gas and the liquid can be mixed at the position with the highest flow rate, thereby improving the mixing effect.

[0174] In a possible implementation, the mixing valve 30 can further include a second communication pipe 36, the second communication pipe 36 including a third end 36a and a fourth end 36b, the third end 36a being in communication with the air inlet pipe 50 (not shown in the figure), and the fourth end 36b being in communication with the air inlet channel 391. The opening of the third end 36a of the second communication pipe 36 is configured as an air inlet 343, and the second through hole 3344 is configured as an air outlet for injecting gas into the mixing chamber 32.

[0175] In a possible implementation, the mixing valve 30 can include an annular outer wall 39, and the mixing chamber 32 is located inside the annular outer wall 39. Part of the structure of the annular outer wall 39 can serve as the outer wall 33 of the mixing chamber, and part of the structure of the annular outer wall 39 is used to form the cooling chamber 31.

[0176] The outer wall 33 of the mixing chamber can include a first outer wall 333, the first outer wall 333 being arranged around the second end 35b of the first communication pipe 35, and in the radial direction of the annular outer wall 39, the first outer wall 333 has a gap with the annular outer wall 39, so that the first outer wall 333, part of the first communication pipe 35, and the annular outer wall 39 form the cooling chamber 31.

[0177] Exemplarily, the outer wall 33 of the mixing chamber can further include a second outer wall 334, wherein the second outer wall 334 is located between the second communication pipe 36 and the water outlet 342. The second outer wall 334 includes an inlet 3341, a throat 3342 and an outlet 3343, the inlet 3341 and the outlet 3343 are located on both sides of the throat 3342, and the cross-sectional area of the second outer wall 334 gradually decreases from the inlet 3341 to the throat 3342 and gradually increases from the throat 3342 to the outlet 3343. The second outer wall 334 and the annular outer wall 39 form an air inlet channel 391.

[0178] Exemplarily, the air inlet channel 391 is arranged outside the second outer wall 334, and the air inlet channel 391 is configured as a cooling chamber for cooling the part of the mixing chamber 32 surrounded by the second outer wall 334. In this way, the structure of the mixing valve 30 can be simplified, and the cost can be reduced.

[0179] Exemplarily, the air inlet channel 391 is in communication with the air inlet pipe 50 through the second communication pipe 36. The second outer wall 334 is provided with a plurality of second through holes 3344 arranged circumferentially and spaced apart from each other, and the second through holes 3344 are in communication with the mixing chamber 32.

[0180] In this way, the gas flow can be dispersed through the plurality of second through holes 3344, and the gas can be injected into the liquid from multiple directions, so that the mixing effect can be improved.

[0181] Exemplarily, the second through holes 3344 can be arranged at the throat 3342 of the second outer wall 334. In this way, the gas and the liquid can be mixed at the position with the highest flow rate, and the mixing effect can be improved.

[0182] The cleaning device 100 provided by the embodiment of the present application can dissolve the gas into the water through the air inlet pipe 50, the water inlet pipe 10 and the mixing valve 30, so as to form water containing gas, for example, saturated water or supersaturated water. When the saturated water or the supersaturated water impacts on an object, the gas is released from the water, and this phenomenon is commonly referred to as “cavitation”. Cavitation is a physical phenomenon that bubbles are formed in the liquid when the flow rate of the liquid increases or the pressure decreases to below the vapor pressure of the liquid. These bubbles will then collapse rapidly, release gas, generate high-speed micro-jet and pressure shock wave, and can penetrate into every corner of the equipment to be cleaned, so as to effectively remove stubborn stains. By arranging the cooling chamber 31 in the mixing valve 30, the temperature of the liquid and the gas in the mixing valve 30 can be reduced, the mixing effect can be improved, the amount of dissolved gas in the liquid can be increased, the cavitation effect can be enhanced, and the cleaning effect and the user experience can be improved.

[0183] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0184] In the description of the utility model, it is understood that the terms "including" and "having" and any variations thereof used in this document are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0185] Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or become an integral part; can be directly connected, or indirectly connected through an intermediate medium, can be connected inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0186] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A cleaning device, characterized in that, The utility model relates to a kind of water and air mixing valve, comprising: Water inlet pipeline; Air inlet pipeline; Mixing valve, the mixing valve is equipped with mixing chamber, the water inlet pipeline and the air inlet pipeline are communicated with the mixing chamber, so that the liquid and gas mixed into the mixing chamber mixing forms mixture; The mixing valve is further equipped with cooling chamber, cooling component is equipped in the cooling chamber, and the cooling component is used to cool the liquid in the mixing valve; The mixing valve is further used to be connected with spray device, and the spray device is used to spray the mixture mixed in the mixing valve to the equipment to be cleaned to clean the equipment to be cleaned.

2. The cleaning device of claim 1, wherein, The mixing valve includes water inlet, water outlet and air inlet;Wherein, In the flow direction of the liquid, the air inlet is located between the water inlet and the water outlet; The cooling chamber is located between the water inlet and the air inlet, and / or the cooling chamber is located between the air inlet and the water outlet.

3. The cleaning device of claim 2, wherein, The cooling chamber includes first cooling chamber and second cooling chamber, and the first cooling chamber and the second cooling chamber are spaced apart in the flow direction of the liquid; The first cooling chamber is located between the water inlet and the air inlet, and the second cooling chamber is located between the air inlet and the water outlet.

4. The cleaning device of claim 2 or 3, wherein, The mixing valve includes first communication pipe, the first communication pipe includes first end and second end, the first end is communicated with the water inlet pipeline, and the second end is communicated with the mixing chamber; The diameter of the second end of the first communication pipe is smaller than the diameter of the first end of the first communication pipe.

5. The cleaning device of any one of claims 1-3, wherein, The mixing valve further includes second communication pipe, the second communication pipe includes third end and fourth end, the third end is communicated with the air inlet pipeline, and the fourth end is located in the mixing chamber; The fourth end is provided with air outlet, and the air outlet is away from the flow direction of the liquid; The angle between the flow direction of the gas flow into the mixing chamber from the fourth end and the flow direction of the liquid is less than 90°.

6. The cleaning device of claim 5, wherein, The fourth end of the second communication pipe is provided with baffle;Wherein, A plurality of first through holes are provided on the baffle, and the plurality of first through holes are configured as the air outlet; The baffle is arranged away from the flow direction of the liquid and at an angle to the central axis of the second communication pipe, and the flow direction of the gas flow into the mixing chamber from the fourth end is perpendicular to the baffle; The flow direction of the liquid is perpendicular to the central axis of the second communication pipe.

7. The cleaning device of any one of claims 1-3, wherein, The mixing valve is provided with air inlet channel, and the air inlet channel is communicated with the air inlet pipeline; Second through hole is opened on the inner wall of the air inlet channel, and the second through hole is communicated with the mixing chamber in the mixing valve; The size of the air inlet channel is greater than the size of the air inlet pipeline and the air inlet channel connection place, so that the gas entering from the air inlet pipeline expands through the air inlet channel and then enters the mixing chamber through the second through hole.

8. The cleaning device of claim 7, wherein, The air inlet channel is surrounded outside part of the mixing chamber;Wherein, The mixing chamber includes throat; In the axial direction of the mixing chamber, the diameter of the mixing chamber on both sides of the throat gradually increases along the direction away from the throat, so that the diameter of the throat is the smallest; The second through hole is arranged at the throat.

9. The cleaning device of any one of claims 1-3, wherein, The water tank is connected with the water inlet pipeline, and a cooling module is arranged between the water tank and the water inlet pipeline, and the cooling module is used for cooling the liquid entering the water inlet pipeline. The cleaning device is used for cleaning the inner container.

10. A cooking appliance characterized by, The cleaning device is used for cleaning the inner container. ​

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