A cold boiled tea preparation device

Abstract

The utility model belongs to the technical field of household appliances, disclose a kind of cold boiled water preparation equipment and cold boiled water preparation method. The cold boiled water preparation equipment includes heat exchanger, thermal energy mechanism, water outlet flow channel and temperature regulating valve assembly, heat exchanger includes the first flow channel and the second flow channel of heat exchange cooperation, the first flow channel is used to pass into clean water for the first end: thermal energy mechanism includes the water storage tank and heating tank of intercommunication, heating inlet is provided on water storage tank, heating inlet is communicated with the end of first flow channel, heating outlet is provided on heating tank;Water outlet flow channel is communicated with heating outlet, the first end and the end of second flow channel can be communicated with water outlet flow channel, the communication position of the first end of second flow channel and water outlet flow channel is located the upstream of the communication position of the end of second flow channel and water outlet flow channel;Temperature regulating valve assembly is set on water outlet flow channel or second flow channel, and temperature regulating valve assembly is used to adjust the flow in second flow channel. The cold boiled water preparation equipment can improve the disposable preparation amount of cold boiled water, and ensure the water temperature.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a device for producing boiled water. Background Technology

[0002] As users' demand for drinking water increases, existing water dispensers, in addition to providing boiled water and room temperature water, have added the function of preparing cooled boiled water to meet users' drinking needs.

[0003] In existing water dispensers, boiling water exchanges heat with room temperature water in a heat exchanger to lower the temperature of the boiling water and thus produce cooled boiled water. However, existing cooled boiled water production equipment has a small batch size, which cannot meet the needs of users for large-volume use. In addition, the cooling water produced solely through heat exchange has a small temperature adjustment range and poor temperature accuracy, making it difficult to meet users' needs for cooled boiled water at different temperatures and affecting the user experience. Utility Model Content

[0004] The purpose of this invention is to provide a device for producing cooled boiled water, which can solve the problems of insufficient one-time production of cooled boiled water, small range of water temperature adjustment, and poor precision.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A device for preparing cooled boiled water, comprising:

[0007] The heat exchanger includes a first flow channel and a second flow channel that are configured for heat exchange, wherein the first end of the first flow channel is used to introduce purified water.

[0008] A thermal energy mechanism includes a water storage tank and a heating tank connected to each other. The heating tank has heating and water storage functions. The water storage tank is provided with a heating inlet, which is connected to the end of the first flow channel. The heating tank is provided with a heating outlet.

[0009] The water outlet channel is connected to the heating outlet. The first end and the last end of the second channel are both connected to the water outlet channel. The connection position between the first end of the second channel and the water outlet channel is located upstream of the connection position between the last end of the second channel and the water outlet channel.

[0010] A temperature regulating valve assembly is disposed on the outlet channel or the second channel, and the temperature regulating valve assembly is used to adjust the flow rate in the second channel.

[0011] As an optional solution for the above-mentioned boiled water preparation equipment, the temperature control valve assembly includes a temperature control valve, which includes a first inlet, a second inlet, and a valve outlet. The first inlet and the valve outlet are connected in series in the water outlet channel, and the second inlet is connected to the end of the second channel. The opening degree of the first inlet and the second inlet is adjustable.

[0012] Alternatively, the temperature control valve assembly may include a flow regulating valve, which is disposed on the second flow channel or disposed on the outlet flow channel and located between the beginning and end of the second flow channel.

[0013] As an alternative to the above-mentioned boiled water preparation equipment, the first flow channel includes a main flow channel and two branch flow channels. The main flow channel is heat exchanged with the second flow channel. The end of the main flow channel can selectively connect to at least one of the branch flow channels, and one of the two branch flow channels is connected to the water storage tank.

[0014] As an optional solution for the above-mentioned boiled water preparation equipment, a first liquid level detection device is provided in the water storage tank, and a first valve assembly is provided on the first flow channel. The first valve assembly is used to control the main flow channel to connect with at least one of the two branch flow channels, and the first liquid level detection device is communicatively connected to the first valve assembly.

[0015] As an alternative to the above-mentioned boiled water preparation equipment, a flow regulating valve is provided at the beginning of the first flow channel, and the flow regulating valve is used to regulate the flow rate in the first flow channel.

[0016] And / or, the cooled boiled water preparation equipment further includes a filtration mechanism, the filtration outlet of the filtration mechanism is connected to the first flow channel, and the filtration mechanism includes a booster pump, the power of which is adjustable;

[0017] And / or, the cooled boiled water preparation equipment further includes a filtration mechanism, the filtration outlet of the filtration mechanism is connected to the first end of the first flow channel, the filtration mechanism has at least one filter element, at least one filter element is provided with a concentrated water outlet, the concentrated water outlet is connected to a concentrated water valve, and the opening degree of the concentrated water valve is adjustable.

[0018] And / or, the cooled boiled water production equipment further includes a filtration mechanism, the filtration outlet of the filtration mechanism is connected to the first end of the first flow channel, the filtration mechanism includes a filter element, at least one of the filter elements has a purified water outlet end connected to a return flow path, the end of the return flow path is connected to the upstream flow path of the filter element, and a return valve is provided on the return flow path, the opening degree of the return valve is adjustable or the opening and closing is controllable.

[0019] As an optional solution for the above-mentioned boiled water preparation equipment, both the water storage tank and the heating tank are provided with exhaust ports;

[0020] And / or, the water storage tank is positioned above the heating tank, the water storage tank has a first connecting port, the heating tank has a second connecting port, and a water supply switch valve is provided between the first connecting port and the second connecting port.

[0021] As an optional solution for the above-mentioned boiled water preparation equipment, the boiled water preparation equipment further includes a sterilization channel, one end of which is connected to the water outlet channel and the other end of which is connected to the water storage tank or the first channel.

[0022] And / or, the boiled water preparation equipment further includes a drainage channel, which is connected to the water storage tank.

[0023] The beneficial effects of this utility model are:

[0024] In the cooled boiled water preparation equipment provided by this utility model, room temperature purified water and boiling water exchange heat in a heat exchanger, so that the boiling water is cooled down to form cooled boiled water, thus realizing the preparation of cooled boiled water using boiled water and ensuring drinking water health.

[0025] By controlling the proportion of boiling water flowing from the heating outlet to the second flow channel and downstream of the outlet flow channel through the temperature regulating valve assembly, the temperature of the cooled boiled water prepared in the second flow channel and the cooled boiled water after final mixing can be controlled, thereby achieving water temperature adjustment to meet user needs. The water temperature of the cooled boiled water mixed in this way is accurate, which helps to improve the user experience.

[0026] The heating tank not only prepares boiling water but also stores a certain amount of boiling water. This allows the heating tank to continuously supply boiling water and cooled boiled water after heat exchange while the user is preparing cooled boiled water, ensuring the production of large quantities of cooled boiled water at once to meet user requirements. The storage tank stores a certain amount of purified water, which can promptly replenish the heating tank with large quantities of purified water. This saves time compared to preparing purified water first and then replenishing the heating tank, reducing user waiting time and improving the user experience. Through the combined use of the storage tank and the heating tank, the boiling water production rate can be increased to 2L / min, meeting user needs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the boiled water preparation device provided in Embodiment 1 of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the first type of cooled boiled water preparation device provided in Embodiment 2 of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the second type of cooled boiled water preparation device provided in Embodiment 2 of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the boiled water preparation device provided in Embodiment 3 of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the boiled water preparation device provided in Embodiment 5 of this utility model.

[0032] In the picture:

[0033] 10. Filtration mechanism; 101. First filtration path; 102. Second filtration path; 103. Return path; 104. Concentrate path; 11. Pre-filter; 12. Fine filter; 13. Post-filter; 14. Booster pump; 15. Concentrate valve; 16. Second switching valve; 17. Return valve; 18. First check valve; 19. Composite filter; 20. Heat exchanger; 21. First flow path; 211. Main flow path; 212. First branch; 213. Second branch; 22. Second flow path; 23. First switching valve; 24. First valve assembly; 30. 31. Thermal energy mechanism; 32. Water storage tank; 33. Heating inlet; 34. First connecting port; 35. Second exhaust flow path; 36. Drain outlet; 37. Heating tank; 38. Heating outlet; 39. Second connecting port; 30. First exhaust flow path; 31. First drive pump; 32. Second drive pump; 33. Water supply switch valve; 44. Normal temperature water flow channel; 45. Normal temperature water switch valve; 56. Water outlet flow channel; 57. Temperature regulating valve; 68. Drain flow channel; 69. Drain valve; 60. Second one-way valve; 71. Water outlet mechanism; 92. Pipeline machine. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] Example 1

[0039] This embodiment provides a device for preparing cooled boiled water for user consumption. In this embodiment, the device can be an under-sink water purifier. In other embodiments, the device can be any other device that has the function of preparing cooled boiled water.

[0040] like Figure 1 As shown, the boiled water production equipment includes a filtration mechanism 10, a heat exchanger 20, and a thermal energy mechanism 30. The filtration mechanism 10 is provided with a raw water inlet and a filter outlet. Raw water enters the filtration mechanism 10 through the raw water inlet, and after being filtered by the filtration mechanism 10, purified water is obtained and flows out through the filter outlet. The heat exchanger 20 includes a first flow channel 21 and a second flow channel 22 that are configured for heat exchange. The thermal energy mechanism 30 is provided with a heating inlet 311 and a heating outlet 321, and is used to heat water. The first flow channel... The first end of the first channel 21 can be connected to the filter outlet for the introduction of purified water. The end of the first channel 21 is connected to the heating inlet 311 so that the purified water enters the heat energy mechanism 30 for heating and is then output as boiling water through the heating outlet 321. The first end of the second channel 22 can be connected to the heating outlet 321 so that at least part of the boiling water can enter the second channel 22 and exchange heat with the water in the first channel 21 to cool the boiling water and form cooled boiled water. The cooled boiled water is then output through the end of the second channel 22 for use.

[0041] In this embodiment, the cooled boiled water preparation equipment first enters the first flow channel 21 of the heat exchanger 20 after being filtered by the filtration mechanism 10. This serves as the cold-end heat exchange medium of the heat exchanger 20, providing cooling. Water flowing out of the first flow channel 21 is heated to boiling water in the thermal energy mechanism 30. The boiling water then enters the second flow channel 22, serving as the hot-end heat exchange medium of the heat exchanger 20. Through heat exchange between the first and second flow channels 21 and 22, the boiling water in the second flow channel 22 is cooled to a temperature that meets the user's needs, and is then supplied to the user through the end of the second flow channel 22. Meanwhile, the room-temperature purified water in the first flow channel 21 absorbs heat and heats up. This heated water then enters the thermal energy mechanism 30 for preheating, preventing heat waste and reducing the heating power of the thermal energy mechanism 30, thus avoiding energy waste.

[0042] In this embodiment, boiling water is cooled through heat exchange to form cooled boiled water, ensuring that the boiled water consumed by the user is cooled boiled water, thus guaranteeing drinking hygiene and providing the user with truly cooled boiled water.

[0043] To better meet users' needs for cooled boiled water temperature, the heating outlet 321 is connected to the water outlet channel 50. Both the beginning and end of the second channel 22 are connected to the water outlet channel 50, with the beginning of the second channel 22 upstream of the end of the second channel 22. This allows some of the boiled water in the water outlet channel 50 to flow into the second channel 22, and the cooled boiled water formed after heat exchange in the second channel 22 flows back to the water outlet channel 50 through the end of the second channel 22. The cooled boiled water also includes a temperature regulating valve assembly, which is installed on either the water outlet channel 50 or the second channel 22. The temperature regulating valve assembly is used to adjust the flow rate within the second channel 22. With the above settings, the flow within the second flow channel 22 can be controlled via the temperature control valve assembly, specifically the flow rate of the cooled boiled water formed after heat exchange. This, in turn, controls the flow rate of boiling water downstream of the first end of the second flow channel 22 within the outlet flow channel 50. Ultimately, this controls the mixing ratio of the cooled boiled water and boiling water, adjusting the temperature of the final mixed boiled water to meet user needs. Furthermore, compared to directly controlling the heat exchanger 20, this embodiment uses the temperature control valve assembly to control the mixing ratio of the cooled boiled water and boiling water, which helps improve the accuracy of the final outlet water temperature and better meets user requirements.

[0044] To improve the stability and accuracy of the outlet water temperature, a first temperature sensor is installed on the outlet channel 50. Located downstream of the end of the second channel 22, the first temperature sensor detects the temperature of the cooled boiled water obtained after mixing low-temperature boiled water and boiling water. The first temperature sensor is communicatively connected to the temperature control valve assembly. By installing the first temperature sensor, the actual temperature of the mixed cooled boiled water ultimately provided by the outlet channel 50 can be detected. This temperature is compared with the user's desired temperature to provide feedback for adjusting the operating parameters of the temperature control valve assembly, thereby adjusting the mixing ratio of low-temperature boiled water and boiling water to ensure the stability and accuracy of the outlet water temperature.

[0045] Optionally, the first temperature detection element can be a thermistor or other sensor, as long as it can detect the temperature of the cooled boiled water mixed in the water channel 50, and there are no restrictions here.

[0046] Optionally, the cooled boiled water preparation equipment also includes a controller, which is communicatively connected to the first temperature detection element and the temperature regulating valve assembly. The temperature detected by the first temperature detection element is transmitted to the controller, and the controller adjusts the opening degree and other states of the temperature regulating valve assembly according to the received temperature to achieve the adjustment of the temperature of the cooled boiled water after mixing.

[0047] Optionally, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control the temperature regulating valve assembly based on the detected water temperature.

[0048] It should be noted that the first temperature sensing element is existing technology in this field, and the first temperature sensing element can be a thermistor or the like, which is also existing technology in this field.

[0049] It is worth noting that the connection relationship, specific structure, and specific control method of the controller with other components are all conventional methods in the field. This utility model can adopt any of the connection relationship, specific structure, and specific control method of the controller with other components in the prior art. This utility model will not provide a detailed description of the connection relationship, specific structure, and specific control method of the controller with other components.

[0050] In this embodiment, as Figure 1 As shown, the temperature control valve assembly includes a temperature control valve 51 installed on the water outlet channel 50. The temperature control valve 51 is connected to the end of the second channel 22. The temperature control valve 51 is a two-inlet and one-outlet valve, which can adjust the flow rate ratio of boiling water flowing through the temperature control valve 51 on the water outlet channel 50, thereby adjusting the proportion of cooled boiled water passing through the second channel 22, and thus achieving the purpose of controlling the final output water temperature.

[0051] Specifically, the water outlet channel 50 includes an upstream flow path and a downstream flow path, with the upstream flow path connected to the heating outlet 321. The temperature regulating valve 51 includes a first inlet, a second inlet, and a valve outlet. The first inlet is connected to the upstream flow path, the second inlet is connected to the end of the second flow path 22, and the valve outlet is connected to the downstream flow path. Both the first and second inlets are connected to the valve outlet, and the opening degree of the first and second inlets is inversely proportional. That is, when the opening degree of the first inlet is increased, the flow rate of hot water in the upstream flow path through the temperature regulating valve 51 to the downstream flow path increases. Correspondingly, the opening degree of the second inlet decreases, reducing the flow rate of hot water entering the second flow path 22. Ultimately, the temperature of the hot water and cooled boiled water mixed at the temperature regulating valve 51 is relatively high. Conversely, when the opening of the second inlet is increased, the proportion of boiling water in the upstream flow path entering the second flow channel 22 increases. Correspondingly, the opening of the first inlet decreases, and the flow rate of boiling water in the upstream flow path through the temperature regulating valve 51 to the downstream flow path decreases. As a result, the temperature of the boiling water and cooled boiled water mixed at the temperature regulating valve 51 is relatively low.

[0052] In this embodiment, not only can cooled boiled water be provided according to the user's needs, but also boiling water and cooled boiled water at low temperatures can be provided to meet various user needs. When the user needs cooled boiled water, the temperature regulating valve 51 adjusts the opening of the second inlet to the maximum, and correspondingly, the first inlet is closed, so that all the boiling water flowing out of the heating outlet 321 flows through the second inlet, through the second flow channel 22, and then flows back to the outlet flow channel 50, thus achieving the supply of cooled boiled water. When the user needs boiling water, the temperature regulating valve 51 adjusts the opening of the first inlet to the maximum, and correspondingly, the second inlet is closed, so that all the boiling water flowing out of the heating outlet 321 flows through the first inlet, through the outlet flow channel 50, thus achieving the supply of boiling water.

[0053] Optionally, the boiled water preparation equipment also includes a water outlet mechanism 70, which is equipped with a water outlet. The water outlet channel 50 is connected to the water outlet mechanism 70, and low-temperature boiled water, boiling water, and mixed boiled water can all be supplied to users through the water outlet of the water outlet mechanism 70.

[0054] To better meet user needs, the boiled water purification equipment also includes a room temperature water channel 40, which is connected to the filter outlet and the water outlet mechanism 70. A room temperature water switch valve 41 is installed on the room temperature water channel 40 to control the opening and closing of the room temperature water channel 40. At least two water outlets are provided so that boiled water and room temperature purified water can flow out separately, ensuring drinking hygiene and improving the user experience.

[0055] It should be noted that the temperature control valve 51 is an existing structure in the field. The structure and adjustment principle of the temperature control valve 51 can adopt any structure and principle in the existing technology, which will not be elaborated here.

[0056] In some other embodiments, the temperature control valve assembly may include a flow regulating valve, which is disposed on the second flow channel 22 or on the outlet flow channel 50 and located downstream of the first end of the second flow channel 22 and upstream of the end end of the second flow channel 22. By adjusting the flow rate of the flow channel, the boiling water flowing out of the heating outlet 321 is quantitatively diverted.

[0057] To facilitate the supply of cooled boiled water or hot water from the heating unit 30 to the water outlet unit 70, a second drive pump 34 is installed on the water outlet channel 50. The second drive pump 34 can drive the water flowing through the heating outlet 321 to the end of the water outlet channel 50. Optionally, the second drive pump 34 can be installed in the upstream flow path, located upstream of the beginning of the second flow channel 22, thereby providing power for the hot water diverted into the second flow channel 22 and reducing the total number of pumps in the flow path.

[0058] It is understandable that the heat exchanger 20 uses purified water filtered by the filter mechanism 10 as a cold source during heat exchange. The final temperature of the cooled boiled water required by the user and the total flow rate of the boiled water provided by the heating outlet 321 determine the cooling capacity required by the heat exchanger 20. However, the temperature of the purified water provided by the filter outlet varies in different seasons, resulting in different cooling capacity provided per unit volume of purified water. Therefore, if the flow rate in the first flow channel 21 remains constant, one scenario is that the cooling capacity provided by the first flow channel 21 is insufficient, resulting in a higher temperature of the cooled boiled water prepared by the second flow channel 22. Ultimately, the temperature of the cooled boiled water formed after mixing with the boiled water is higher than the temperature required by the user. The second scenario is that the cooling capacity provided by the first flow channel 21 is excessive, resulting in a waste of some purified water resources in the first flow channel 21.

[0059] To address the aforementioned issues, in this embodiment, the working state and / or working parameters of the filtration mechanism 10 are adjustable, enabling it to adjust the flow rate at the filter outlet. This adjusts the flow rate of purified water within the first flow channel 21, precisely regulating the cooling capacity provided by the purified water within the first flow channel 21. This ensures sufficient cooling capacity while meeting the requirements for preparing boiled water, thus avoiding waste of purified water and cooling capacity.

[0060] like Figure 1 As shown, the filtration mechanism 10 includes a booster pump 14 connected in series and at least one filter element. The booster pump 14 provides power to the water, driving it through the filter element for filtration. In this embodiment, one of the filter elements is a fine filter element 12, which is located downstream of the booster pump 14. The fine filter element 12 has a concentrate outlet connected to a concentrate valve 15. The power of the booster pump 14 is adjustable, and the opening degree of the concentrate valve 15 is also adjustable. That is, the operating parameters of the filtration mechanism 10 include the power of the booster pump 14 and the opening degree of the concentrate valve 15.

[0061] It is understandable that by increasing the power of the booster pump 14, the water flow rate entering the fine filter element 12 can be increased, thereby increasing the water flow rate after filtration through the fine filter element 12, and thus increasing the flow rate entering the first flow channel 21 through the filter outlet; conversely, by decreasing the power of the booster pump 14, the water flow rate entering the fine filter element 12 can be decreased, thereby decreasing the water flow rate entering the first flow channel 21 through the filter outlet.

[0062] The booster pump 14 is a conventional structure in the filter mechanism 10. The flow rate at the filter outlet is adjusted by adjusting the power of the booster pump 14. No additional structural components are required, which helps to simplify the overall structure of the filter mechanism 10 and the boiled water production equipment, thereby reducing costs.

[0063] Understandably, the concentrate outlet of the fine filter cartridge 12 is used to discharge the concentrate generated during the filtration process. By adjusting the opening of the concentrate valve 15, the discharge rate of the concentrate during the filtration process can be controlled, thereby affecting the water filtration flow rate. When the opening of the concentrate valve 15 increases, the proportion of concentrate discharged through the concentrate valve 15 increases, and the flow rate of clean water provided by the filter outlet decreases accordingly; when the opening of the concentrate valve 15 decreases, the proportion of concentrate discharged through the concentrate valve 15 decreases, and correspondingly, the flow rate of inlet water provided by the filter outlet increases.

[0064] Optionally, such as Figure 1 As shown, the filtration mechanism 10 also includes a concentrate flow channel 104, which is connected to the concentrate outlet. A concentrate valve 15 is installed on the concentrate flow channel 104 to control the opening and closing of the concentrate flow channel 104.

[0065] The concentrate valve 15 is a conventional structure in the filter mechanism 10. The flow rate at the filter outlet is adjusted by adjusting the opening of the concentrate valve 15. No additional structural components are required, which helps to simplify the overall structure of the filter mechanism 10 and the boiled water production equipment, thereby reducing costs.

[0066] In this embodiment, the power of the booster pump 14 is adjustable, and the opening of the concentrate valve 15 is adjustable. Through the cooperation of the booster pump 14 and the concentrate valve 15, the precise control of the water flow rate in the first flow channel 21 can be improved, thereby ensuring sufficient cooling capacity at the cold end of the heat exchanger 20 and avoiding waste of cooling capacity.

[0067] In some other embodiments, the filter mechanism 10 can achieve flow regulation in the first flow channel 21 by adjusting the power of the booster pump 14, and the concentrate valve 15 does not have an opening adjustment function; or, the filter mechanism 10 can achieve flow regulation in the first flow channel 21 by adjusting the opening of the concentrate valve 15, and the power of the booster pump 14 is not adjustable.

[0068] In this embodiment, the fine filter element 12 is a reverse osmosis filter element. The reverse osmosis filter element uses the reverse osmosis principle for filtration, which has high filtration accuracy and a high safety factor, and can ensure the health of family drinking water.

[0069] In some other embodiments, the fine filter element 12 may also be a nanofiltration element, an ultrafiltration element, or other filter element, and there is no limitation herein.

[0070] To ensure the filtration effect of the reverse osmosis filter cartridge, such as Figure 1 As shown, the filtration mechanism 10 also includes a return flow path 103 and a return valve 17. The return flow path 103 connects the purified water outlet of the reverse osmosis filter element and the inlet of the booster pump 14, allowing the purified water passing through the fine filter element 12 to flow back and flush the reverse osmosis membrane in the reverse osmosis filter element after passing through the booster pump 14, thereby removing contaminants accumulated on the reverse osmosis membrane and ensuring the filtration effect of the reverse osmosis filter element. The return valve 17 is installed on the return flow path 103 and can control the opening and closing of the return flow path 103 to activate the flushing function at appropriate times.

[0071] In some embodiments, to better control the flow rate within the first flow channel 21, the flow rate can be adjusted by opening the return valve 17 during the preparation of cooled boiled water. It is understood that during the normal water purification process of the filtration mechanism 10, the return valve 17 is closed, the return flow path 103 is not connected, and all the water filtered by the fine filter element 12 flows towards the heat exchanger 20. Consequently, the purified water flow rate within the first flow channel 21 is relatively large. By opening the return valve 17 during the normal filtration process of the filtration mechanism 10, some of the water filtered by the fine filter element 12 can flow back through the return flow path 103, thereby reducing the purified water flow rate within the first flow channel 21. In other words, the operating state of the filtration mechanism 10 includes the open and closed state of the return valve 17.

[0072] To achieve a wide range of flow rate regulation within the first flow channel 21, in some embodiments, the opening degree of the return valve 17 is adjustable. By adjusting the opening degree of the return valve 17, the proportion of water returning after filtration by the fine filter element 12 can be adjusted, thereby adjusting the proportion of water entering the first flow channel 21 after filtration by the fine filter element 12, thus achieving flow rate regulation within the first flow channel 21. In other words, the operating parameters of the filtration mechanism 10 may include the opening degree of the return valve 17.

[0073] To prevent backflow of water in the return flow path 103, a first one-way valve 18 is also provided on the return flow path 103. The first one-way valve 18 allows water to flow from the outlet end of the fine filter element 12 along the return flow path 103 toward the booster pump 14, but prevents water in the return flow path 103 from flowing from the booster pump 14 toward the outlet end of the fine filter element 12.

[0074] To improve filtration efficiency, the filtration mechanism 10 includes multiple filter elements, including a pre-filter 11 and a post-filter 13. The pre-filter 11, fine filter 12, and post-filter 13 are connected in series. The raw water first passes through the pre-filter 11 for preliminary filtration, removing large particles and residual chlorine to prevent clogging and corrosion of the fine filter 12, such as preventing corrosion of the reverse osmosis membrane, thus providing a safe working environment for the fine filter 12. Then, the water passes through the fine filter 12 for further filtration, removing all dissolved ions, heavy metals, and trace substances to produce pure water. Finally, the water passes through the post-filter 13 for filtration, optimizing the taste and providing final flavor enhancement and protection, thus improving drinking water health.

[0075] like Figure 1 As shown, the inlet of the pre-filter 11 is used to introduce raw water; the pre-filter 11 and the fine filter 12 are connected by a first filtration flow path 101, and the booster pump 14 is installed on the first filtration flow path 101; the outlet end of the fine filter 12 and the post-filter 13 are connected by a second filtration flow path 102.

[0076] Optionally, a second switching valve 16 is also provided on the first filtration flow path 101. The second switching valve 16 is used to control the opening and closing of the first filtration flow path 101 to realize the start and stop control of the filtration mechanism 10. It can be understood that the pre-filter 11 can be directly connected to the tap water in the user's home. When it is necessary to filter raw water, the second switching valve 16 is opened, and the tap water enters the fine filter 12 after being filtered by the pre-filter 11, so as to simplify the structure and control.

[0077] In other embodiments, the first filtration flow path 101 may not be equipped with the second switching valve 16, which will not affect the normal operation of the filtration mechanism 10 and the preparation of cooled boiled water.

[0078] Optionally, the pre-filter 11 can be at least one of a PP cotton filter and an activated carbon filter. The PP cotton filter can filter large particulate solid impurities in the water, such as silt, rust, insect eggs, red worms, colloids, suspended solids, etc., to prevent the downstream filter from being clogged and worn. The activated carbon filter can remove residual chlorine, chloramine, discoloration, odor (such as the smell of disinfectant), some organic matter and volatile organic matter by adsorption, avoiding irreversible damage to the downstream filter.

[0079] Optionally, the post-filter 13 can be an activated carbon filter, which can adsorb trace amounts of odor in the water, improve the taste of the water, and make the water taste sweeter, fresher, and more palatable.

[0080] In some embodiments, the pre-filter 11, fine filter 12, and post-filter 13 can be combined to form a composite filter, simplifying the piping between the filters, reducing the size of the filtration mechanism 10, and making it easier to adapt to under-sink environments.

[0081] In some other embodiments, the return flow path 103 may also be connected to the purified water outlet of the post-filter cartridge 13, which may reduce the flow rate of purified water entering the first flow channel 21.

[0082] In some other embodiments, the other end of the return flow path 103 can be connected to the inlet end of the fine filter element 12, the inlet end of the pre-filter element 11, or the inlet end of the second switching valve 16, as long as the return flow path 103 can return water to the upstream of the filter element connected to it. The specific location can be set according to actual needs.

[0083] Optionally, a first switching valve 23 is provided at the beginning of the first flow channel 21. The first switching valve 23 can realize the opening and closing of the first flow channel 21 so that the first flow channel 21 can be opened when it is necessary to prepare boiling water or cooled boiled water, so that the purified water enters the heat energy mechanism 30 after passing through the heat exchanger 20. This is beneficial to drain the water in the first flow channel 21 when not preparing boiling water or cooled boiled water, avoiding the long-term presence of water and bacteria in the first flow channel 21, and preventing the supply of water that has been in the first flow channel 21 for a long time to users, which is conducive to ensuring drinking water health.

[0084] In some other embodiments, the first switching valve 23 can be replaced by a flow regulating valve, which can control the flow rate in the first flow channel 21 while realizing the opening and closing of the first flow channel 21. When used in conjunction with the filter mechanism 10, it can achieve precise control of the flow rate in the first flow channel 21, ensure accurate final water temperature, and avoid waste of cold end water.

[0085] It is understandable that when the filter mechanism 10 is producing water, reducing the flow rate in the first flow channel 21 through the flow regulating valve may cause the booster pump 14 to become pressurized, affecting its lifespan. Therefore, when reducing the flow rate in the first flow channel 21 through the flow regulating valve, the return valve 17 can be opened or the opening degree of the return valve 17 can be adjusted to relieve the pressure at the booster pump 14 and avoid affecting the service life of the booster pump 14.

[0086] It should be noted that the adjustment methods of adjusting the power of the booster pump 14, adjusting the opening of the concentrate valve 15, adjusting the opening or opening / closing state of the return valve 17, and adjusting the opening of the flow regulating valve can be combined arbitrarily, and this utility model does not impose any restrictions.

[0087] Existing equipment for preparing cooled boiled water has a relatively small water production capacity, generally below 0.5L / min. Users need to wait a long time when using cooled boiled water, which cannot meet the needs of users in some high-flow scenarios.

[0088] To address the aforementioned issues, in this embodiment, the thermal energy mechanism 30 includes a water storage tank 31 and a heating tank 32 connected to each other. The heating tank 32 has both heating and water storage functions. The end of the first flow channel 21 is connected to the water storage tank 31; the beginning of the second flow channel 22 is connected to the heating tank 32, and the end of the second flow channel 22 is connected to the water outlet channel 50. The heating tank 32 can not only prepare boiling water but also store a certain amount of boiling water. This allows the heating tank 32 to continuously provide boiling water and cooled boiling water after heat exchange when the user is preparing cooled boiled water, thus ensuring the preparation of a large quantity of cooled boiled water at once to meet the user's needs. The water storage tank 31 can store a certain amount of purified water, which can promptly replenish a large amount of purified water to the heating tank 32. This saves time compared to preparing purified water first and then replenishing it to the heating tank 32, reducing user waiting time and improving the user experience.

[0089] In this embodiment, the water production capacity of cooled boiled water can be increased to 2L / min through the cooperation of water storage tank 31 and heating tank 32, which meets the user's needs.

[0090] Specifically, the water storage tank 31 is provided with a heating inlet 311 and a first connecting port 312, and the heating inlet 311 is connected to the end of the first flow channel 21; the heating tank 32 is provided with a heating outlet 321 and a second connecting port 322, the first connecting port 312 and the second connecting port 322 are connected, and the heating outlet 321 is connected to the water outlet flow channel 50.

[0091] Optionally, the heating tank 32 includes a heating tank body and a first heating element disposed on the heating tank body. The first heating element can be disposed inside the heating tank body or on the outer wall of the heating tank body, as long as it can heat the water inside the heating tank body. The heating element can be an electric heating element such as a heating resistance wire.

[0092] To facilitate the replenishment of water from the water storage tank 31 to the heating tank 32, a first drive pump 33 is provided between the first connecting port 312 and the second connecting port 322. The first drive pump 33 provides driving force for the water in the water storage tank 31 to replenish water to the heating tank 32.

[0093] In this embodiment, the second connection port 322 is located at the bottom of the heating tank 32. To prevent water from flowing between the water storage tank 31 and the heating tank 32 when no water replenishment is needed, a water replenishment switch valve 35 is also provided between the first connection port 312 and the second connection port 322. The water replenishment switch valve 35 is used to control the opening and closing between the first connection port 312 and the second connection port 322 to control the start and stop of water replenishment.

[0094] Optionally, the water supply switch valve 35 can be a solenoid valve for convenient intelligent control; both the water supply switch valve 35 and the first drive pump 33 can be electrically connected to the controller so that the controller can automatically control the water supply switch valve 35 and the first drive pump 33 according to the working status of the whole machine.

[0095] It is understandable that the heating tank 32 contains boiling water, which will produce steam, potentially increasing the pressure inside the heating tank 32 and compromising safety. To address this issue, the heating tank 32 is also connected to a first exhaust path 323, which is connected to the heating tank body and used to expel steam from the heating tank, ensuring a balanced pressure inside the heating tank.

[0096] To simplify the structure of the boiled water production equipment, in this embodiment, the first exhaust flow path 323 is connected to the water outlet mechanism 70, and the steam is discharged through the water outlet mechanism 70. There is no need to set up an additional steam exhaust structure, and no extra space is required, which helps to reduce the overall size of the machine.

[0097] To ensure smooth water flow into the water storage tank 31, a second venting passage 313 is connected to the water storage tank 31. The second venting passage 313 is used to maintain stable air pressure inside the water storage tank 31 when clean water is introduced into it, thus ensuring smooth water flow. Optionally, the second venting passage 313 is connected to the water outlet mechanism 70. Using the water outlet mechanism 70 to vent air simplifies the structure and reduces the overall size of the machine.

[0098] It should be noted that the flow channels or flow paths mentioned above can be formed by pipes or other structures, as long as the above-mentioned connection state can be achieved. No restrictions are imposed here.

[0099] Example 2

[0100] This embodiment provides a device for preparing cooled boiled water, which is a further improvement on the first embodiment.

[0101] During the preparation of cooled boiled water, the water storage tank 31 does not replenish water to the heating tank 32 to ensure that all water in the heating tank 32 is boiled water. No purified water is added during the preparation process to guarantee that the cooled boiled water is made entirely from boiled water, thus achieving a truly cooled boiled water supply. However, this results in the first flow channel 21 continuously replenishing purified water to the water storage tank 31 during the cooling boiled water preparation process, while the water storage tank 31 does not drain water. This could easily lead to the water storage tank 31 overflowing or affecting the flow of purified water within the first flow channel 21, thus impacting the normal preparation of cooled boiled water.

[0102] To solve the above problems, such as Figure 2As shown, the first flow channel 21 includes a main flow channel 211 and two branch flow paths, namely a first branch 212 and a second branch 213. The main flow channel 211 is heat-exchange compatible with the second flow channel 22. The end of the main flow channel 211 can selectively connect to at least one of the first branch 212 and the second branch 213. Among the two branch flow paths, the first branch 212 connects to the concentrate flow channel 104, and the second branch 213 connects to the heating inlet 311. When the water level in the water storage tank 31 is high, the end of the main flow channel 211 can connect to at least the first branch 212, so that at least part of the purified water after heat exchange in the first flow channel 21 flows to the concentrate flow channel 104 through the first branch 212, reducing the amount of purified water flowing to the water storage tank 31 and preventing water from overflowing from the water storage tank 31.

[0103] Optionally, a first valve assembly 24 is provided at the end of the main channel 211. The first valve assembly 24 is connected to the first branch 212 and the second branch 213 respectively. The first valve assembly 24 can be a first directional valve. Specifically, the first valve assembly 24 includes a valve inlet, a first outlet and a second outlet. The valve inlet is connected to the main channel 211, the first outlet is connected to the first branch 212, and the second outlet is connected to the second branch 213. The first valve assembly 24 can switch between being connected to the first outlet and being connected to the second outlet.

[0104] During the preparation of cooled boiled water, when the water level in the storage tank 31 is low, water can be added to the storage tank 31. This avoids wasting purified water and ensures that the storage tank 31 has sufficient purified water for easy replenishment to the heating tank 32. At this time, the valve inlet of the first reversing valve is connected to the second outlet, allowing the purified water in the main channel 211 to flow to the storage tank 31 through the second branch 213 for purified water storage. When the water level in the storage tank 31 is high, adding purified water to the storage tank 31 will cause purified water overflow, affecting the normal operation of the cooled boiled water production equipment. At this time, the valve inlet of the first reversing valve is connected to the first outlet, allowing the purified water in the main channel 211 to flow to the concentrated water channel 104 through the first branch 212 for purified water discharge.

[0105] Optionally, the first directional valve can be a solenoid valve with one inlet and two outlets to achieve automatic switching of valve circuits.

[0106] In this embodiment, by cooperating with the first branch 212 and the first reversing valve, the water remaining in the first flow channel 21 can be discharged when the boiled water preparation equipment is not working, so as to avoid the long-term retention of some water in the first flow channel 21 and the growth of bacteria, thus ensuring drinking hygiene.

[0107] To facilitate the discharge of at least a portion of the purified water through the concentrate flow channel 104 via the first valve assembly 24, a first liquid level detection component is installed inside the water storage tank 31. This component detects the liquid level within the tank and is communicatively connected to the first valve assembly 24. When the first liquid level detection component detects that the liquid level in the water storage tank 31 is lower than the first maximum liquid level, the first reversing valve connects the main flow channel 211 to the second branch 213, allowing purified water to enter the water storage tank 31. When the first liquid level detection component detects that the liquid level in the water storage tank 31 is equal to the first maximum liquid level, the first reversing valve connects the main flow channel 211 to the first branch 212, allowing the purified water in the main flow channel 211 to be discharged through the concentrate flow channel 104.

[0108] Optionally, the first liquid level detection component can be a float level gauge or other types of liquid level detection structures in the prior art, as long as it can detect the liquid level in the water storage tank 31, and there is no limitation here.

[0109] Optionally, both the first liquid level detection component and the first valve component 24 are electrically connected to the controller. The first liquid level detection component sends the detected liquid level information to the controller, and the controller controls the valve path switching of the first valve component 24 according to the received liquid level information.

[0110] It should be noted that the first liquid level detection component and the controller are both existing technologies in the field, and the connection circuit between the first liquid level detection component, the controller and the first valve component 24 is also existing technology in the field, and will not be described in this embodiment.

[0111] In some other embodiments, the first valve assembly 24 can be a diversion valve that can simultaneously connect the first branch 212 and the second branch 213, so that the purified water in the main channel 211 can be divided into two paths. One path of purified water enters the first branch 212 and is discharged through the concentrated water channel 104, while the other path of purified water can enter the second branch 213 and be stored in the water storage tank 31.

[0112] Optionally, the flow divider valve can be a three-way flow divider valve, a proportional flow divider valve, or an adjustable flow divider valve, which can be set according to actual needs.

[0113] In some other embodiments, the first valve assembly 24 may include two switching valves, with a switching valve provided on both the first branch 212 and the second branch 213. The two switching valves can be independently controlled to open and close, and the on / off state of the first branch 212 and the second branch 213 can be controlled by the switching valves.

[0114] Optionally, all of the above-mentioned switching valves can be electromagnetic switching valves to achieve automatic switching of the flow channel.

[0115] In some other embodiments, such as Figure 3As shown, the second connecting port 322 is located at the top of the heating tank. In this case, only the first drive pump 33 can be installed between the first connecting port 312 and the second connecting port 322, and the water supply switch valve 35 can be omitted to simplify the structure and reduce costs.

[0116] Example 3

[0117] This embodiment provides a device for producing cooled boiled water, which differs from the above embodiment in the positional relationship between the water storage tank 31 and the heating tank 32.

[0118] like Figure 4 As shown, the water storage tank 31 is located above the heating tank 32, the first connecting port 312 is located at the bottom of the water storage tank 31, and the second connecting port 322 is located at the top of the heating tank 32. Only a water replenishment switch valve 35 needs to be installed between the first connecting port 312 and the second connecting port 322. No pump is needed. Automatic water replenishment is achieved by utilizing the gravity of water, which helps to simplify the structure and reduce costs.

[0119] Example 4

[0120] This embodiment provides a device for preparing cooled boiled water, which is a further improvement on any of the above embodiments to improve drinking hygiene.

[0121] The boiled water preparation equipment also includes a sterilization channel. The first end of the sterilization channel connects to the outlet channel 50, and the second end connects to the heating mechanism 30. During sterilization, the filtration mechanism 10 does not operate; that is, the filtration mechanism 10 does not introduce purified water into the first channel 21. The heating tank 32 is activated, heating the water inside to boiling point. Then, the first drive pump 33 is activated, and the boiling water flows back to the heating mechanism 30 through the second channel 22, the outlet channel 50, and the sterilization channel, thus sterilizing and disinfecting the flow path to ensure drinking water hygiene.

[0122] In this embodiment, the end of the sterilization channel is connected to the water storage tank 31. Boiling water in the heating tank 32 sterilizes and disinfects the channel before flowing back to the water storage tank 31 and then into the heating tank 32 for further heating. This cycle ensures hygiene within the drinking water equipment and improves drinking safety. Using boiling water for sterilization eliminates the need for an additional sterilization module, simplifying the structure and reducing costs.

[0123] In some other embodiments, the end of the sterilization channel can be connected to the first channel 21, preferably to the beginning of the first channel 21, to further increase the sterilization range. The long flow path of the boiling water allows for the sterilization of the heat exchanger 20, the water storage tank 31, and the heating tank 32, which is beneficial for improving drinking water hygiene.

[0124] In addition, the boiling water in the sterilization channel can also push the room temperature water remaining in the first channel 21 and the clean water in the water storage tank 31 into the heating tank 32 for heating, thus preventing the growth of bacteria from the room temperature water in the first channel 21 and the water storage tank 31 for a long time.

[0125] In some other embodiments, the end of the sterilization channel may also be connected to the heating tank 32, and the specific connection position can be adjusted according to the actual need for sterilization and disinfection.

[0126] To control the start and stop of the sterilization function, the boiled water production equipment also includes a second valve assembly. This second valve assembly controls the connection and disconnection between the water outlet channel 50 and the sterilization channel. When sterilization is required, the second valve assembly switches to a state where the water outlet channel 50 is connected to the sterilization channel. The boiled water supplied by the heating outlet 321 will be sterilized and returned through the sterilization channel, and the water outlet channel 50 will not be connected to the water outlet mechanism 70. When normal water production is required, the second valve assembly switches to a state where the water outlet channel 50 is connected to the water outlet mechanism 70, and the water outlet channel 50 will not be connected to the sterilization channel.

[0127] In this embodiment, the second valve assembly includes a second reversing valve, which is a solenoid valve with one inlet and two outlets. The inlet end and one outlet end of the second reversing valve are connected in series in the water outlet channel 50, and the other outlet end is connected to the sterilization channel to achieve the above-mentioned switching function.

[0128] In some embodiments, the second valve assembly can be replaced by two switching valves. Exemplarily, the first end of the sterilization channel is connected to the outlet channel 50, and a switching valve is provided on the sterilization channel to control the opening and closing of the sterilization channel; another switching valve is provided on the outlet channel 50 downstream of the first end of the sterilization channel, and this switching valve is used to control the opening and closing between the outlet channel 50 and the outlet mechanism 70.

[0129] Example 5

[0130] This embodiment provides a device for preparing cooled boiled water, which is a further improvement on the above embodiment.

[0131] like Figure 5 As shown, in this embodiment, the water storage tank 31 is provided with a drain outlet 314, which is connected to a drain channel 60 to discharge the water in the water storage tank 31 through the drain channel 60, thereby preventing users from drinking stagnant water and achieving zero stagnant water.

[0132] When draining the stagnant water in the storage tank 31, the water in the heating tank 32 can be returned to the storage tank 31 in conjunction with the sterilization flow channel to drain the water in the heating tank 32. The heating tank 32 does not need to be equipped with an opening for drainage, which helps to simplify the structure and reduce costs.

[0133] Optionally, a drain valve 61 and a second check valve 62 are provided on the drain channel 60. The drain valve 61 is used to control the opening and closing of the drain channel 60; the second check valve 62 is used to prevent water from flowing back into the drain channel 60.

[0134] Optionally, the end of the drainage channel 60 is connected to the inlet of the booster pump 14, so that the water in the water storage tank 31 flows back to the booster pump 14 through the drainage channel 60, can be filtered again by the filter element, can be reused, and avoid waste of water resources.

[0135] In other embodiments, the connection position at the end of the drainage channel 60 can be adjusted according to actual needs.

[0136] In this embodiment, the filtration mechanism 10 includes a composite filter element 19, which integrates the functions of the pre-filter element 11 and the post-filter element 13, and has a more compact structure, which helps to reduce the overall size of the machine.

[0137] To meet the diverse needs of users, the filter outlet of the filter mechanism 10 is also connected to the water dispenser 90 to provide purified water to the water dispenser 90 and meet the diverse water needs of users.

[0138] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for preparing cooled boiled water, characterized in that, include: The heat exchanger (20) includes a first flow channel (21) and a second flow channel (22) for heat exchange, wherein the first end of the first flow channel (21) is used to introduce purified water. The thermal energy mechanism (30) includes a water storage tank (31) and a heating tank (32) connected together. The heating tank (32) has heating and water storage functions. The water storage tank (31) is provided with a heating inlet (311), which is connected to the end of the first flow channel (21). The heating tank (32) is provided with a heating outlet (321). The water outlet channel (50) is connected to the heating outlet (321). The first end and the last end of the second channel (22) are both connected to the water outlet channel (50). The connection position between the first end of the second channel (22) and the water outlet channel (50) is located upstream of the connection position between the last end of the second channel (22) and the water outlet channel (50). A temperature control valve assembly is disposed on the outlet channel (50) or the second channel (22), and the temperature control valve assembly is used to adjust the flow rate in the second channel (22).

2. The boiled water preparation equipment according to claim 1, characterized in that, The temperature control valve assembly includes a temperature control valve (51), which includes a first inlet, a second inlet, and a valve outlet. The first inlet and the valve outlet are connected in series in the water outlet channel (50), and the second inlet is connected to the end of the second channel (22). The opening degree of the first inlet and the second inlet is adjustable. Alternatively, the temperature control valve assembly may include a flow regulating valve, which is disposed on the second flow channel (22) or disposed on the outlet flow channel (50) and located between the beginning and end of the second flow channel (22).

3. The boiled water preparation equipment according to claim 1, characterized in that, The first flow channel (21) includes a main flow channel (211) and two branch flow channels. The main flow channel (211) is heat exchanged with the second flow channel (22). The end of the main flow channel (211) can selectively connect to at least one of the branch flow channels, and one of the two branch flow channels connects to the water storage tank (31).

4. The boiled water preparation equipment according to claim 3, characterized in that, The water storage tank (31) is provided with a first liquid level detection device, and the first flow channel (21) is provided with a first valve assembly (24). The first valve assembly (24) is used to control the main flow channel (211) to communicate with at least one of the two branch flow channels. The first liquid level detection device is communicatively connected to the first valve assembly (24).

5. The apparatus for preparing cooled boiled water according to any one of claims 1-4, characterized in that, A flow regulating valve is provided at the beginning of the first flow channel (21), and the flow regulating valve is used to regulate the flow rate in the first flow channel (21).

6. The apparatus for preparing cooled boiled water according to any one of claims 1-4, characterized in that, The boiled water preparation equipment also includes a filtration mechanism (10), the filtration outlet of the filtration mechanism (10) is connected to the first flow channel (21), and the working mode and / or working parameters of the filtration mechanism (10) are adjustable to adjust the flow rate in the first flow channel (21).

7. The boiled water preparation equipment according to claim 6, characterized in that, The filtration mechanism (10) includes a booster pump (14) with adjustable power; And / or, the filtration mechanism (10) has at least one filter element, at least one of the filter elements is provided with a concentrate outlet, the concentrate outlet is connected to a concentrate valve (15), the opening degree of the concentrate valve (15) is adjustable; And / or, the filtration mechanism (10) includes a filter element, at least one of the filter elements has a water outlet end connected to a return flow path (103), the end of the return flow path (103) is connected to the upstream flow path of the filter element, and a return valve (17) is provided on the return flow path (103), the opening degree of the return valve (17) is adjustable or the opening and closing are controllable.

8. The apparatus for preparing cooled boiled water according to any one of claims 1-4, characterized in that, Both the water storage tank (31) and the heating tank (32) are equipped with exhaust ports; And / or, the water storage tank (31) is located above the heating tank (32), the water storage tank (31) is provided with a first connecting port (312), the heating tank (32) is provided with a second connecting port (322), and a water supply switch valve (35) is provided between the first connecting port (312) and the second connecting port (322).

9. The apparatus for preparing cooled boiled water according to any one of claims 1-4, characterized in that, The boiled water preparation equipment also includes a sterilization channel, one end of which is connected to the water outlet channel (50), and the other end is connected to the water storage tank (31) or the first channel (21).

10. The apparatus for preparing cooled boiled water according to any one of claims 1-4, characterized in that, The boiled water preparation equipment also includes a drainage channel (60), which is connected to the water storage tank (31).

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