Method for purifying food materials in a cleaning machine

Abstract

The present application relates to a kind of food de-purine methods of cleaning machine, the cleaning machine includes sink and food cleaning tank being detachably arranged in sink, the outside wall of the sink is provided with the supply system for being used for supplying water, supplying gas and being able to be connected or disconnected with food cleaning tank, the water supply channel of the supply system is connected micro-nano bubble generator, the bottom of the food cleaning tank is provided with the aeration structure being connected with the gas supply channel of supply system;In the state that the food cleaning tank is communicated with supply system, micro-nano bubble water is used to soak treatment to food, and the soaked food is aerated treatment.Because the specific surface area of nano size bubble is small, adsorption purine ability is strong, and aeration can promote the formation of turbulent flow, enhance the dissolution of purine material in water, improve the removal rate of purine in food, realize the purpose of reducing the purine content in food before cooking.

Description

Technical Field

[0001] This invention relates to the field of cleaning machines and food cleaning technology, specifically to a method for removing purines from food using a cleaning machine. Background Technology

[0002] In traditional kitchens, the main methods for removing purines include the following:

[0003] (1) Blanching: This is a commonly used pretreatment technique, especially suitable for foods containing high levels of purines, such as meat and seafood. By boiling the ingredients in water for a period of time, some of the purines can be dissolved in the water. Afterward, the water used to boil the meat can be discarded, thus removing some of the purines. It is recommended to control the blanching time to within a few minutes to avoid overcooking the ingredients or losing their texture.

[0004] (2) Use specific kitchen utensils: It is recommended to choose microwave ovens or other cooking utensils with purine degradation devices. For example, patent CN113397367A discloses a cooking utensil that, based on the purine degradation device of the cooking utensil, can adaptively adjust the purine degradation curve or depth according to the user's health information, user type information and food information to meet the purine content requirements of special populations or food ingredients.

[0005] These methods can help reduce the purine content of food in a traditional kitchen, which is especially important for people who need to control their purine intake.

[0006] However, current cooking equipment on the market lacks pre-treatment functions to reduce purines before cooking, and the cooking methods based on these devices are limited, often only including soups and braised meats. Furthermore, without pre-treatment, cooking times are long; too short a time prevents flavor from penetrating, while too long a time results in significant nutrient loss from the ingredients. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a method for removing purines from food by using a cleaning machine that can reduce the purine content of food before cooking, in light of the current state of the technology.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0009] A method for removing purines from food using a washing machine, the washing machine including a water tank and a food washing tank detachably disposed in the water tank, the outer wall of the water tank being provided with a supply system for supplying water and air to the food washing tank and being able to communicate or disconnect from the food washing tank, the water supply channel of the supply system being connected to a micro-nano bubble generator, and the bottom of the food washing tank being provided with an aeration structure connected to the air supply channel of the supply system.

[0010] With the food washing tank connected to the supply system, the food is soaked in micro-nano bubble water and then aerated.

[0011] This invention first soaks food ingredients in micro-nano bubble water, then aerates the micro-nano bubble water. Due to the small specific surface area of ​​nano-sized bubbles, they have a strong ability to adsorb purines. Aeration promotes the formation of turbulence, breaking the laminar flow state in the liquid. This greatly increases the contact opportunities and collision efficiency between purine molecules and water, enhancing the solubility of purines in water. Furthermore, the combination of aeration and micro-nano bubble soaking not only applies more mechanical force to the food ingredients to promote cleaning, but also helps to increase the concentration of nano-bubbles in the micro-nano bubble water, thereby improving the removal rate of purines from the food ingredients and achieving the goal of reducing the purine content in food ingredients before cooking.

[0012] Preferably, during the water intake phase, the micro-nano bubble generator is activated to supply micro-nano bubble water to the food washing tank, immersing the food to be treated. After water intake, bubbles are bubbled into the food washing tank through the aeration structure, generating turbulent airflow that vibrates and cleans the food. Simultaneously, the micro-nano bubble water penetrates deep into the surface of the food for water exchange, achieving purine removal. When the food to be cleaned is medium- to high-purine food such as pork, animal offal, or fish, bubbling cleaning is immediately activated after the micro-nano bubble water reaches the first liquid level. The bubbles rise from the outlet, burst, and the synergistic effect of bubble collapse and turbulent force loosens the surface tissue of the meat, facilitating the precipitation and dissolution of purines within the tissue. After a certain cleaning time, the dirty water is drained. The food is then immersed in micro-nano bubble water again for a period of time (approximately 2 minutes) to enhance the dissolution of purines by the bubble water. Through the repeated action of bubbling turbulence and micro-nano water, the purpose of reducing purine content is achieved.

[0013] As one implementation method, for small-volume ingredients in the form of filaments or flakes, water is first introduced. During water introduction, micro-nano bubble water is generated through a micro-nano bubble generator. The water introduction time is 1min-1min30s. The micro-nano water begins to work once the ingredients are submerged. After the water introduction is completed, the aeration structure begins to bubble and clean. The micro-nano water, combined with turbulence and oscillation, achieves the purpose of cleaning and removing purines at the same time.

[0014] The first rinse lasts 3-4 minutes, followed by drainage. After drainage, the second rinse begins, repeating the first water intake process for 2-3 minutes. After the second rinse is completed, drainage is resumed, and the program ends.

[0015] As one implementation method, for large-volume blocky ingredients, water is first introduced. During water introduction, micro-nano bubble water is generated through a micro-nano bubble generator. The water introduction time is 1min-1min30s. The micro-nano water begins to work once the ingredients are submerged. After the water introduction is completed, the aeration structure begins to bubble and clean. The micro-nano water, combined with turbulence and oscillation, achieves the purpose of cleaning and removing purines at the same time.

[0016] The first rinse lasts 5-8 minutes, followed by drainage. After drainage, the second rinse begins, repeating the first water intake process. The rinse process lasts 4-6 minutes. After the second rinse is completed, drainage is performed, and the program ends.

[0017] Preferably, the supply system is a first installation module integrating water supply, gas supply, and drainage structures. This first installation module is flat and arranged close to the outer wall of the water tank. Setting the integrated water supply, gas supply, and drainage structure as a flat first installation module facilitates installation on the side of the water tank, greatly saving installation space and improving space utilization.

[0018] Preferably, the sidewall of the food washing tank has an air inlet and a water outlet arranged side by side near the bottom. The supply system is provided with an air inlet pipe connected to the air inlet, a water inlet pipe connected to the water outlet, and a drain pipe. Sharing a single water outlet for both water inlet and drain simplifies the structure and facilitates production. Separating the openings for air circulation and water flow allows for independent water and air supply to the food washing tank.

[0019] Preferably, the air inlet pipe has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure, the water inlet pipe is located below the air inlet pipe and also has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure, and the drain pipe is located below the water inlet pipe and extends laterally downwards along the water flow direction. The input end of the air inlet pipe, the input end of the water inlet pipe, and the discharge end of the drain pipe are arranged sequentially from top to bottom. The output end of the air inlet pipe is connected to the air inlet, and the output end of the water inlet pipe intersects with the input end of the drain pipe and is connected to the water outlet. During food washing, due to the turbulent water flow in the tank, a small amount of backflow may occur. The above structure is adopted to prevent backflowing water from entering the air inlet pipe and affecting its front air intake structure, or entering the water inlet pipe and affecting its front water intake structure.

[0020] Preferably, the food washing tank includes an outer tank, a middle tank, and an inner tank. The middle tank is fitted inside the outer tank, and the bottom of the outer tank has a recessed water inlet area. The bottom of the middle tank is connected to this water inlet area. The inner tank is fitted inside the middle tank and is used to hold the food to be washed. The bottom of the inner tank has a drain hole connected to the middle tank. The bottom of the inner tank also has an aeration channel and a bubble hole that can be connected to the supply system. The aeration channel is connected to the supply system through an air guide pipe that passes through the bottom of the middle tank and the water inlet area. This structure ensures that the gas channel and the water flow channel do not interfere with each other's operation, while the water inlet and outlet can flush the air guide pipe to prevent residue accumulation. Bubbling provides turbulent cleaning of the water inlet area to prevent residue accumulation. In other words, the combination of the outer, middle, and inner tanks and their coordination with the water flow channel and the gas channel prevent localized residue accumulation before and after washing.

[0021] Compared with existing technologies, the advantages of this invention are as follows: This invention first soaks the food in micro-nano bubble water, and then aerates the micro-nano bubble water. Due to the small specific surface area of ​​nano-sized bubbles, they have a strong ability to adsorb purines. Aeration promotes the formation of turbulence, breaking the laminar flow state in the liquid, which greatly increases the contact opportunities and collision efficiency between purine molecules and water, thereby enhancing the solubility of purine substances in water. Furthermore, the combination of aeration and micro-nano bubble soaking not only applies more mechanical force to the food to promote cleaning, but also helps to increase the concentration of nano-bubbles in the micro-nano bubble water, thereby improving the removal rate of purines from the food and achieving the goal of reducing the purine content in the food before cooking. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Another angle view;

[0024] Figure 3 for Figure 1 Exploded view of the water tank and food washing tank;

[0025] Figure 4 for Figure 2 A structural diagram of the hidden portion of the outer shell;

[0026] Figure 5 for Figure 1 A sectional view;

[0027] Figure 6 This is another cross-sectional view of an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the food washing tank in an embodiment of the present invention;

[0029] Figure 8 for Figure 7 A structural diagram of the exploded inner channel;

[0030] Figure 9 for Figure 7 Exploded view of the outer and middle sections of the tank;

[0031] Figure 10 This is a schematic diagram of the structure of another hidden part of the outer shell in an embodiment of the present invention. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Example 1:

[0034] The cleaning machine of this embodiment includes a water tank 1 and a food cleaning tank 10 detachably disposed in the water tank 1. The outer wall of the water tank 1 is provided with a supply system for supplying water and air to the food cleaning tank 10 and can be connected or disconnected from the food cleaning tank. The water supply channel of the supply system is connected to a micro-nano bubble generator 222. The bottom of the food cleaning tank 10 is provided with an aeration structure connected to the air supply channel of the supply system.

[0035] The method for removing purines from food ingredients in this embodiment is as follows: with the food ingredient washing tank 10 connected to the supply system, the food ingredients are soaked in micro-nano bubble water and then aerated.

[0036] Specifically, in this embodiment, the food is first soaked in micro-nano bubble water, and then aerated. Due to the small specific surface area of ​​nano-sized bubbles, they have a strong ability to adsorb purines. Aeration promotes the formation of turbulence, breaking the laminar flow state in the liquid. This greatly increases the contact opportunities and collision efficiency between purine molecules and water, enhancing the solubility of purines in water. Furthermore, the combination of aeration and micro-nano bubble soaking not only applies more mechanical force to the food to promote cleaning, but also helps to increase the concentration of nano-bubbles in the micro-nano bubble water, thereby improving the removal rate of purines from the food and achieving the goal of reducing the purine content in the food before cooking.

[0037] In the water-inlet state, the micro-nano bubble generator 222 is turned on to supply micro-nano bubble water to the food washing tank 10, immersing the food to be treated. After the water inlet is finished, bubbles are blown into the food washing tank through the aeration structure. The resulting air surge turbulence shakes and cleans the food. At the same time, the micro-nano bubble water penetrates deep into the surface of the food for water exchange, achieving the removal of purines from the food. When the food to be cleaned is medium- to high-purine food such as pork, animal offal, or fish, the bubbling cleaning is started immediately after the micro-nano bubble water reaches the first liquid level. The bubbles at the air outlet rise, burst, and the synergistic effect of bubble collapse and turbulence loosens the surface tissue of the meat, which is conducive to the precipitation and dissolution of purines within the tissue. After cleaning for a certain period of time, the dirty water is drained. The food is then immersed in micro-nano bubble water again for a period of time (about 2 minutes) to enhance the dissolution of purines by the bubble water. Through the repeated action of bubbling turbulence and micro-nano water, the purpose of reducing purine content is achieved.

[0038] In this embodiment, for small-volume ingredients in the form of filaments or flakes, water is first introduced. During water introduction, micro-nano bubble water is generated through a micro-nano bubble generator. The water introduction time is 1 minute and 30 seconds. The micro-nano water begins to work once the ingredients are submerged. After the water introduction is completed, the aeration structure begins to bubble and clean the ingredients. The micro-nano water, combined with turbulence and oscillation, achieves the purpose of cleaning and removing purines at the same time.

[0039] The first rinse lasts 3 minutes, followed by drainage. After drainage, the second rinse begins, repeating the first water intake process for 2 minutes. After the second rinse is completed, drainage is resumed, and the program ends.

[0040] The food washing tank 10 is slidably disposed within the water tank 1 along its lateral direction. When the food washing tank 10 is moved to a fixed position, it connects to the supply system to achieve automatic food washing; when the food washing tank 10 is moved to another position, it disconnects from the supply system and can be removed entirely from the water tank 1 for use as an independent fruit and vegetable tank. In this embodiment, the inner sidewall of the water tank 1 is provided with a laterally extending guide rib 11, and correspondingly, the sidewall of the food washing tank 10 has a guide portion 311 that can reciprocate and slide against the guide rib 11. This structure enables the food washing tank 10 to slide laterally within the water tank 1.

[0041] The supply system is a first installation module 21 integrating water supply, gas supply, and drainage structures. This first installation module 21 is flat and arranged close to the outer wall of the water tank 1. Setting the integrated water supply, gas supply, and drainage structure as a flat first installation module 21 facilitates the installation of the first installation module 21 on the side of the water tank 1, greatly saving installation space and improving space utilization.

[0042] The first installation module 21 includes an air inlet pipe 211, a water inlet pipe 212, and a drain pipe 213. The air inlet pipe 211 has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. Bends and right angles in the air inlet pipe 211 can cause energy loss; smooth transitions can reduce this loss. The water inlet pipe 212 is located below the air inlet pipe 211 and also has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. The drain pipe 213 is located below the water inlet pipe 212, extends horizontally, and gradually slopes downwards along the water flow direction. The input ends of the air inlet pipe 211, the water inlet pipe 212, and the drain pipe 213 are arranged sequentially from top to bottom. The output end of the air inlet pipe 211 is connected to the air inlet 312, and the output end of the water inlet pipe 212 intersects with the input end of the drain pipe 213 and connects to the water outlet 313. During food washing, a small amount of backflow may occur due to the turbulent water flow within the tank. The above structure is designed to prevent backflowing water from entering the air inlet pipe and affecting its front air intake structure, or entering the water inlet pipe and affecting its front water intake structure. In another embodiment, by sacrificing space on the side of the tank, the water inlet pipe can be arranged parallel to the air inlet pipe.

[0043] In this embodiment, the food washing tank 10 includes an outer tank 31, a middle tank 32, and an inner tank 33. The middle tank 32 is fitted inside the outer tank 31. The bottom of the outer tank 31 is provided with a recessed water inlet area 310, and the bottom of the middle tank 32 is connected to the water inlet area 310. The inner tank 33 is fitted inside the middle tank 32 and is used to hold the food to be washed. The bottom of the inner tank 33 is provided with a drain hole 331 that is connected to the middle tank 32. The bottom of the inner tank 33 is also provided with an aeration channel 332 and bubble holes 333 that can be connected to the supply system. The number of bubble holes 333 should not be too large, as too many bubble holes 333 will reduce the uniformity and strength of bubble formation. The aeration channel 332 is connected to the supply system through an air guide pipe 4 that passes through the bottom of the middle tank 32 and the water inlet area 310. The above structure allows the gas channel and water channel to be independent of each other and not affect each other's operation. At the same time, the inlet and outlet water can be used to flush the outer periphery of the gas guide pipe 4 to avoid the accumulation of residue. Bubbling is used to perform turbulent cleaning of the water inlet area 310 to avoid the accumulation of residue. That is, the combination of the outer, middle and inner tanks and their coordination with the water channel and gas channel avoids the local accumulation of residue before and after cleaning.

[0044] The bottom of the outer tank 31 is also provided with a drain outlet 314, which allows water overflowing from the top of the inner tank 33 into the outer tank 31 to be drained into the water tank 1. The water inlet area 310 is located in the center of the bottom of the outer tank 31. The bottom wall of the outer tank 31 forms a slope that gradually extends downward from the water inlet area 310 to both ends of the outer tank 31. The side wall of the outer tank 31 above the bottom wall forms an arc-shaped side wall with a bowl or flat bottom structure. The drain outlet 314 is provided at the junction of the arc-shaped side wall and the bottom wall of the outer tank 31 to improve the drainage effect under the guiding effect of the slope and the arc-shaped side wall. The bottom wall of the outer tank 31 is provided with a drain groove 315 that extends and is recessed along the width direction of the outer tank 31 near both ends. The bottom of the drain groove 315 has multiple drain outlets 314. When the amount of water overflowing from the inner tank 33 into the outer tank 31 is large, the drain groove 315 can improve the guidance and drainage effect of the overflow, and prevent water from accumulating in other areas of the bottom of the outer tank 31. In addition, the drain groove 315 protrudes below the bottom of the outer tank 31 and is flush with the interface connected to the supply system, and can also be used as a support for the food washing tank.

[0045] The water inlet area 310 at the bottom of the outer tank 31 is square, but it can be designed in other shapes as needed. A slot 316 extending towards the water inlet area 310 is provided on the side wall of the outer tank 31. An air inlet 312 and a water outlet 313, both communicating with the water inlet area 310, are respectively provided at the inner end of the slot 316. A connector 5 is provided in the slot 316. The connector 5 has a gas channel 51 and a water flow channel 52. The gas channel 51 and water flow channel 52 at the inner end of the connector 5 are connected to the air inlet 312 and the water outlet 313, respectively. The gas channel 51 and water flow channel 52 at the outer end of the connector 5 are connected to the corresponding ports of the supply system. This connector 5 facilitates the detachable connection of the air inlet 312 and the water outlet 313 to the supply system. At the outer ends of the air inlet 312 and the water outlet 313, there are plug-in sleeves 300. Correspondingly, the inner end of the plug-in 5 is inserted into the corresponding plug-in sleeve 300, and a sealing ring is provided between the mating surfaces of the two to improve the sealing effect.

[0046] The side wall of the water tank 1 has a notch 13, which exposes the side of the supply system in the water tank 1. The side of the supply system has a first opening 001 corresponding to the air inlet 312 and a second opening 002 corresponding to the water outlet 313. The outer end of the connector 5 is provided with a sealing element 6 that can seal the gas passage 51 and water flow passage 52 with the corresponding first opening 001 and second opening 002.

[0047] The middle tank 32 is used to introduce washing water. The inner bottom wall of the outer tank 31 is provided with a sealing gasket 321 at the periphery of the water inlet area 310. The bottom of the middle tank 32 has an opening 320 corresponding to the water inlet area 310. The edge of the opening forms a mating part that can abut against the sealing gasket 321. The inner edge of the mating part can also be bent downward and located at the inner side wall of the sealing gasket 321 to improve the sealing performance, so that the water in the water inlet area 310 enters the middle tank 32 upward, and prevents the water in the water inlet area 310 from entering the outer tank 31 through the bottom of the middle tank 32 and the bottom of the outer tank 31.

[0048] A filter plate 7 is installed at the bottom of the intermediate tank 32, covering its opening. The edge of the filter plate 7 forms a support rim 71 that rests on the connecting part. The filter plate 7 sinks down at the top opening of the corresponding water inlet area 310, thus covering the top opening of the water inlet area 310. This filter plate 7 filters out large debris and sediment, preventing them from entering the water inlet area 310. Of course, a small amount of fine debris and sediment will inevitably enter the water inlet area 310; in this case, the intermediate tank 32 can be removed and cleaned later.

[0049] The air guide pipe 4 is roughly L-shaped, with its horizontal portion positioned in the water inlet area 310. The end of the horizontal portion is inserted into the air inlet 312. The L-shaped structure is fixed to the bottom wall of the water inlet area 310 with screws. Its vertical portion passes through the filter plate 7, with its upper end positioned above the filter plate 7. The bottom wall of the inner tank 33 has an assembly port 334 for the upper end of the vertical portion to pass through and extend into the aeration channel 332. After assembly, the outer surface of the vertical portion matches the inner edge of the assembly port 334 without leakage. An end cap 41 is provided at the upper end of the vertical portion, and a guide cone 42 with its tip pointing downwards, corresponding to the incoming air portion in the vertical portion, is provided on the lower surface of the end cap 41. This structure facilitates gas supply and diversion, reducing gas flow loss.

[0050] After the inner groove 33 is fitted into the middle groove 32, the top edge of the inner groove 33 extends outward to form a support edge, which is placed on the top edge of the middle groove 32 to limit the position of the inner groove 33.

[0051] After the inner tank 33 is removed from the middle tank 32, the middle tank 32 and the outer tank 31 cooperate to form a small ordinary water tank. From a top view, the filter plate 7 and the outer tank form an integrated filter structure, which is easy to clean. The water inlet area 310 can then form a drainage area. Water can be directly discharged to the sewer pipe through the drainage area and the drain pipe, which is convenient to use. The side walls of the inner tank 33 and its corresponding middle tank 32 are provided with overflow holes 335 and 325 near the top. These overflow holes 335 and 325 guide the overflow water to the middle tank 32 for backflow, or into the outer tank 31, and then discharge it into the water tank 1 through the overflow port at the bottom of the outer tank 31.

[0052] The aeration channel 332 includes multiple interconnected horizontal and vertical arms. The upper surface of the bottom wall of the inner trough 33 is provided with a number of bubble holes 333 corresponding to the aeration channel 332. The diameter of the bubble holes 333 can be equal or unequal. Preferably, the diameter of the bubble holes at specific locations is unequal to meet more aeration needs.

[0053] The first installation module 21 of the supply system is installed on the left or right side wall of the water tank 1. A second installation module 22, connected to the inlet of the supply system, is also installed on the rear side wall of the water tank 1. The second installation module 22 contains a fan 221, a micro / nano bubble water generator 222, and a drain valve pump 223 arranged from top to bottom. The fan 221 is installed upside down with its outlet connected to the air inlet 312 of the air inlet pipe to prevent water backflow from damaging the fan 221. The fan can be installed at the highest point below the faucet. The front end of the micro / nano bubble water generator 222 is connected to the water inlet valve, and the rear end is connected to the input end of the water inlet pipe, providing micro / nano bubble water to the food washing tank 10. The inlet of the drain valve pump 223 is connected to the output end of the drain pipe, and the outlet of the drain valve pump 223 is located at its top and connected to a suspended drain pipe 220. Due to space and cost constraints, this device does not include a drain valve. Instead, water is stored in the tank via a drain pipe suspended at the rear of the drain valve pump. The maximum liquid level in the tank is determined by the height of the drain pipe. When the liquid level exceeds this height, overflow occurs. However, due to structural obstructions from the drain valve pump, the overflow flow rate is typically less than the inlet flow rate. To prevent backflow into the fan pipe in case of excessive water intake or high liquid levels, an overflow hole is designed within the tank. The overflow hole is higher than the drain pipe's height but lower than the fan pipe's height. Controlling the overflow via the drain pipe also prevents users from mistakenly believing the food washing tank is leaking, thus improving the user experience.

[0054] This embodiment incorporates a food cleaning tank within a large-volume water tank, capable of automatic food cleaning and temporary aquatic product holding. The food cleaning tank can slide back and forth within the water tank. When temporary holding of aquatic products is required, the food cleaning tank is moved within the water tank to connect with the water supply system. The aquatic products are then placed in the food cleaning tank, and water and air are supplied through the system for temporary holding. During this process, the temperature, turbidity, and oxygen content of the holding water can be monitored and adjusted in real time to provide the optimal aquaculture environment and maintain the aquatic products' freshness for an extended period. When the temporary holding function is not needed, the food cleaning tank can also automatically clean the food. It is moved within the water tank to connect with the water supply system, and water is introduced into the tank, creating turbulent flow to clean the food. When only large items need to be washed, the food cleaning tank can be removed from the water tank, providing a large cleaning space to meet user needs. This invention meets a variety of customer needs, providing automatic cleaning and aquatic holding functions without affecting the independent usable volume of the water tank.

[0055] Example 2:

[0056] For large, blocky food items, water is introduced first. During water introduction, micro-nano bubble generator 222 generates micro-nano bubble water. The water introduction time is 1 min to 1 min 30 seconds. Once the food item is submerged, the micro-nano water begins to work. After the water introduction is completed, the aeration structure begins to bubble and clean the food. The micro-nano water, combined with turbulence and vibration, achieves the purpose of cleaning and removing purines at the same time.

[0057] The first rinse lasts 5 minutes, followed by drainage. After drainage, the second rinse begins, repeating the first water intake process for 4 minutes. After the second rinse is completed, drainage is resumed, and the program ends.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for removing purines from food using a washing machine, the washing machine comprising a water tank and a food washing tank detachably disposed in the water tank, characterized in that: The outer wall of the water tank is provided with a supply system for supplying water and air to the food washing tank and can be connected or disconnected from the food washing tank. The water supply channel of the supply system is connected to a micro-nano bubble generator. The bottom of the food washing tank is provided with an aeration structure connected to the air supply channel of the supply system. With the food washing tank connected to the supply system, the food is soaked in micro-nano bubble water and then aerated.

2. The method for removing purines from food using the washing machine according to claim 1, characterized in that: When water is being introduced, the micro-nano bubble generator is activated to supply micro-nano bubble water to the food washing tank, immersing the food to be processed. After water is introduced, bubbles are blown into the food washing tank through the aeration structure, and the resulting air surge turbulence shakes and cleans the food. At the same time, the micro-nano bubble water penetrates deep into the surface of the food for water exchange, thereby removing purines from the food.

3. The method for removing purines from food using the washing machine according to claim 2, characterized in that: For small-volume ingredients in the form of filaments or flakes, water is introduced first. During water introduction, micro-nano bubble water is generated through a micro-nano bubble generator. The water introduction time is 1 minute to 1 minute and 30 seconds. Once the ingredients are submerged, the micro-nano water begins to work. After water introduction, the aeration structure begins to bubble and clean. The micro-nano water, combined with turbulence and vibration, achieves the purpose of cleaning and removing purines at the same time. The first rinse lasts 3-4 minutes, followed by drainage. After drainage, the second rinse begins, repeating the first water intake process for 2-3 minutes. After the second rinse is completed, drainage is resumed, and the program ends.

4. The method for removing purines from food using the washing machine according to claim 2, characterized in that: For large, blocky ingredients, water is introduced first. During water introduction, micro-nano bubble generator produces micro-nano bubble water. The water introduction time is 1 minute to 1 minute and 30 seconds. Once the ingredients are submerged, the micro-nano water begins to work. After water introduction, the aeration structure begins to bubble and clean. The micro-nano water, combined with turbulence and vibration, achieves the purpose of cleaning and removing purines at the same time. The first rinse lasts 5-8 minutes, followed by drainage. After drainage, the second rinse begins, repeating the first water intake process. The rinse process lasts 4-6 minutes. After the second rinse is completed, drainage is performed, and the program ends.

5. The method for removing purines from food using a washing machine according to any one of claims 1 to 4, characterized in that: The supply system is a first installation module that integrates water supply, gas supply and drainage structures. The first installation module is flat and arranged close to the outer wall of the water tank.

6. The method for removing purines from food using the washing machine according to claim 5, characterized in that: The side wall of the food washing tank is provided with an air inlet and a water outlet arranged side by side near the bottom. The supply system is provided with an air inlet pipe connected to the air inlet, a water inlet pipe connected to the water outlet, and a drain pipe.

7. The method for removing purines from food using the washing machine according to claim 6, characterized in that: The air intake pipe has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. The water inlet pipe is located below the air intake pipe and has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. The drain pipe is located below the water inlet pipe and extends laterally downward along the water flow direction.

8. The method for removing purines from food using the washing machine according to claim 6, characterized in that: The food washing tank includes an outer tank, a middle tank, and an inner tank. The middle tank is fitted inside the outer tank. The bottom of the outer tank has a recessed water inlet area, and the bottom of the middle tank is connected to this water inlet area. The inner tank is fitted inside the middle tank and is used to hold the food to be washed. The bottom of the inner tank has a drain hole connected to the middle tank. The bottom of the inner tank also has an aeration channel and a bubble hole that can be connected to the supply system. The aeration channel is connected to the supply system through an air guide pipe that passes through the bottom of the middle tank and the water inlet area.

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