Water dispenser

Abstract

The utility model relates to the field of water dispenser, and specifically provides a water dispenser, aims at solving the problem that the existing water dispenser with cold boiled water function cannot prepare the cold boiled water in the true sense. For this purpose, the water dispenser includes a reverse osmosis water purification system, a hot tank and a cold boiled water tank, the reverse osmosis water purification system includes a water inlet pipe, a booster pump and a reverse osmosis filter element connected in sequence; the water outlet of the hot tank is connected with the water inlet of the cold boiled water tank, and the pure water outlet of the reverse osmosis filter element is connected with the water inlet of the hot tank; the cold boiled water tank is provided with a heat exchange pipe capable of exchanging heat with the water in the cold boiled water tank, the reverse osmosis water purification system includes a flushing pipe, the flushing pipe includes a first pipe section and a second pipe section, the water inlet end of the heat exchange pipe is connected with the pure water outlet of the reverse osmosis filter element through the first pipe section, and the water outlet end of the heat exchange pipe is connected with the part of the water inlet pipe on the upstream side of the booster pump through the second pipe section. In this way, the water in the cold boiled water tank is all the cold boiled water formed after the boiled water is cooled, which is the cold boiled water in the true sense.

Description

Technical Field

[0001] This utility model relates to the field of water dispenser technology, and specifically provides a water dispenser. Background Technology

[0002] Cooled boiled water is drinking water that has been boiled and then cooled to a certain temperature. Currently available water dispensers with a "cooled boiled water" function typically prepare it in two ways: one is by heating water to a drinkable temperature without fully boiling it; the other is by mixing boiled water with cold water to a drinkable temperature, without using only fully boiled water. Therefore, the "cooled boiled water" prepared in these two ways is not truly cooled boiled water in the strictest sense.

[0003] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that existing water dispensers with the function of cooling boiled water cannot produce truly cooled boiled water.

[0005] This utility model provides a water dispenser, which includes a reverse osmosis water purification system, a hot water tank, and a cooled boiled water tank. The reverse osmosis water purification system includes an inlet pipe, a booster pump, and a reverse osmosis filter element connected in sequence. The outlet of the hot water tank is connected to the inlet of the cooled boiled water tank, and the pure water outlet of the reverse osmosis filter element is connected to the inlet of the hot water tank. The cooled boiled water tank is equipped with a heat exchange tube capable of exchanging heat with the water inside the cooled boiled water tank. The reverse osmosis water purification system includes a flushing pipe, which includes a first pipe section and a second pipe section. The inlet end of the heat exchange tube is connected to the pure water outlet of the reverse osmosis filter element through the first pipe section, and the outlet end of the heat exchange tube is connected to the portion of the inlet pipe located upstream of the booster pump through the second pipe section.

[0006] In the preferred embodiment of the above-mentioned water dispenser, the water dispenser includes a first water supply pipe, the inlet end of which is connected to the outlet end of the heat exchange pipe, and the outlet end of which is connected to the inlet of the heat exchange tank; the pure water outlet of the reverse osmosis filter element can be connected to the inlet of the heat exchange tank through the first water supply pipe; the pure water outlet of the reverse osmosis filter element can be connected to the inlet pipe through the second pipe section.

[0007] In the preferred technical solution of the water dispenser described above, a first water supply valve is provided on the first water supply pipe, and a flushing valve is provided on the second pipe section.

[0008] In the preferred embodiment of the water dispenser described above, the inlet end of the first water supply pipe is connected to the portion of the second pipe section located upstream of the flushing valve.

[0009] In the preferred embodiment of the above-mentioned water dispenser, the water dispenser includes a three-way valve, the inlet of the three-way valve is connected to the outlet of the heat exchange tube, the first outlet of the three-way valve is connected to the inlet of the second pipe section, and the second outlet of the three-way valve is connected to the inlet of the first water supply pipe.

[0010] In the preferred embodiment of the water dispenser described above, the water dispenser includes a second water supply pipe, the inlet end of which is connected to the outlet of the hot water tank, and the outlet end of which is connected to the inlet of the cooled boiled water tank, so that water in the hot water tank can flow into the cooled boiled water tank through the second water supply pipe.

[0011] In the preferred embodiment of the water dispenser described above, the height of the outlet of the hot water tank is lower than the height of the inlet of the cold boiled water tank, and a water supply pump is provided on the second water supply pipe.

[0012] In the preferred embodiment of the water dispenser described above, the height of the outlet of the hot water tank is higher than the height of the inlet of the cold boiled water tank, and a second water supply valve is provided on the second water supply pipe.

[0013] In the preferred embodiment of the water dispenser described above, a third temperature sensor is provided on the second pipe section, and the water flow speed of the second pipe section can be adjusted according to the detection value of the third temperature sensor.

[0014] In the preferred embodiment of the water dispenser described above, the heat exchange tube is housed within the cooled boiled water tank.

[0015] When the above technical solution is adopted, the water dispenser includes a reverse osmosis water purification system, a hot water tank, and a cooled boiled water tank. The reverse osmosis water purification system includes an inlet pipe, a booster pump, and a reverse osmosis filter element connected in sequence. The outlet of the hot water tank is connected to the inlet of the cooled boiled water tank, and the pure water outlet of the reverse osmosis filter element is connected to the inlet of the hot water tank. The cooled boiled water tank is equipped with a heat exchange tube that can exchange heat with the water inside the cooled boiled water tank. The reverse osmosis water purification system includes a flushing pipe, which includes a first pipe section and a second pipe section. The inlet end of the heat exchange tube is connected to the pure water outlet of the reverse osmosis filter element through the first pipe section, and the outlet end of the heat exchange tube is connected to the portion of the inlet pipe located upstream of the booster pump through the second pipe section.

[0016] With this setup, the water dispenser can supply purified water produced by the reverse osmosis water purification system to the heating tank, where it is heated to boiling. This boiling water is then transferred to a cooling tank. Water flowing through the flushing pipe of the reverse osmosis system passes through a heat exchanger to lower the temperature of the water in the cooling tank, thus cooling it to a boil-free state. In this way, the water in the cooling tank is entirely boiled water that has been cooled, making it truly cooled boiled water. Furthermore, while the flushing pipe lowers the temperature of the water in the cooling tank, the water flowing out of it returns to the inlet pipe, mixes with the raw water, and then flows sequentially through the booster pump and the reverse osmosis filter cartridge, thus flushing the filter cartridge. In other words, the reverse osmosis filter cartridge is flushed simultaneously during the preparation of cooled boiled water.

[0017] Preferably, the water dispenser includes a first water supply pipe, the inlet end of which is connected to the outlet end of the heat exchange pipe, and the outlet end of the first water supply pipe is connected to the inlet of the hot water tank; the pure water outlet of the reverse osmosis filter element can be connected to the inlet of the hot water tank through the heat exchange pipe and the first water supply pipe.

[0018] This design, compared to the previous method where the pure water outlet of the reverse osmosis filter element was connected to the inlet of the hot water tank via a separate pipe, reduces the length of the pipe used to replenish water to the hot water tank, thus lowering manufacturing costs. Furthermore, the pure water produced by the reverse osmosis filter element first flows through the heat exchange tubes and then through the first water replenishment pipe to the hot water tank. This allows the pure water to exchange heat with the water in the cooled boiled water tank as it flows through the heat exchange tubes, achieving both cooling of the water in the cooled boiled water tank and preheating of the water flowing into the hot water tank. This reduces the energy consumption required to heat the water in the hot water tank, thereby lowering operating costs.

[0019] Preferably, a temperature sensor is installed on the second pipe section, and the water flow rate of the second pipe section can be adjusted according to the detection value of the temperature sensor.

[0020] With this setup, the water dispenser can obtain the temperature of the water flowing through the second pipe section in real time during the preparation of cooled boiled water. It can then adjust the water flow rate of the second pipe section according to the water temperature, preventing the water flowing into the inlet pipe from being too hot and thus affecting the lifespan of the reverse osmosis filter. Attached Figure Description

[0021] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0022] Figure 1 This is a schematic diagram of the water system structure of a water dispenser according to an embodiment of the present invention;

[0023] Figure 2 This is a cross-sectional view of a water dispenser according to one embodiment of the present invention.

[0024] List of reference numerals in the attached diagram:

[0025] 1. Pre-filter composite element; 2. Booster pump; 3. Reverse osmosis filter element; 41. Water outlet; 42. Water dispenser; 5. Hot water tank; 51. First liquid level sensor; 6. Cool boiled water tank; 61. Second liquid level sensor; 62. Heat exchange tube; 71. Inlet pipe; 72. Connecting pipe; 73. Flushing pipe; 731. First pipe section; 732. Second pipe section; 741. First outlet pipe; 742. Second outlet pipe; 75. Wastewater pipe; 761. First water supply pipe; 762. Second water supply pipe; 771. Hot water outlet pipe; 772. Cool boiled water outlet pipe; 773. Third outlet pipe; 781. First vent pipe; 782. Second vent pipe; 783. Third vent pipe; 79. Water circuit board; 811 811 Inlet valve; 812 Normal temperature water outlet valve; 813 Shut-off valve; 814 Wastewater valve; 815 Flushing valve; 816 First water supply valve; 817 Hot water outlet valve; 818 Cool boiled water outlet valve; 821 First TDS sensor; 822 First temperature sensor; 823 Second TDS sensor; 824 Second temperature sensor; 825 Flow sensor; 826 Third temperature sensor; 827 High pressure switch; 828 Fourth temperature sensor; 831 First check valve; 832 Second check valve; 84 Water supply pump; 85 Water outlet pump; 9. Housing; 91. Middle frame; 911 First cavity; 912 Second cavity; 913 Third cavity. Detailed Implementation

[0026] First, those skilled in the art should understand that the embodiments described below are merely for explaining the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.

[0027] It should be noted that in the description of the utility model, the terms "first", "second", "third", "fourth", "fifth" and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, it should be noted that in the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Based on the problem mentioned in the background art that existing water dispensers with a "cooled boiled water" function cannot produce truly cooled boiled water, this utility model provides a water dispenser including a reverse osmosis water purification system, a heating tank, and a cooled boiled water tank. The reverse osmosis water purification system includes an inlet pipe, a booster pump, and a reverse osmosis filter element connected in sequence. The outlet of the heating tank is connected to the inlet of the cooled boiled water tank, and the pure water outlet of the reverse osmosis filter element is connected to the inlet of the heating tank. The cooled boiled water tank is equipped with a heat exchange tube that can exchange heat with the water inside the cooled boiled water tank. The reverse osmosis water purification system includes a flushing pipe, which includes a first pipe section and a second pipe section. The inlet end of the heat exchange tube is connected to the pure water outlet of the reverse osmosis filter element through the first pipe section, and the outlet end of the heat exchange tube is connected to a portion of the inlet pipe located upstream of the booster pump through the second pipe section.

[0030] With this setup, the water dispenser can supply purified water produced by the reverse osmosis water purification system to the heating tank, where it is heated to boiling. This boiling water is then transferred to a cooling tank. Water flowing through the flushing pipe of the reverse osmosis system passes through a heat exchanger to lower the temperature of the water in the cooling tank, thus cooling it to a boil-free state. In this way, the water in the cooling tank is entirely boiled water that has been cooled, making it truly cooled boiled water. Furthermore, while the flushing pipe lowers the temperature of the water in the cooling tank, the water flowing out of it returns to the inlet pipe, mixes with the raw water, and then flows sequentially through the booster pump and the reverse osmosis filter cartridge, thus flushing the filter cartridge. In other words, the reverse osmosis filter cartridge is flushed simultaneously during the preparation of cooled boiled water.

[0031] The following reference Figure 1 and Figure 2 This article will provide a detailed introduction to the water dispenser of this utility model. Among other things, Figure 1 This is a schematic diagram of the water system structure of a water dispenser according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a water dispenser according to one embodiment of the present invention.

[0032] like Figure 1 As shown, the water dispenser includes a reverse osmosis water purification system, a water outlet 41, a hot water tank 5, and a cooled boiled water tank 6. The reverse osmosis water purification system includes an inlet pipe 71, a booster pump 2, and a reverse osmosis filter element 3 connected in sequence. The hot water tank 5 is equipped with a first liquid level sensor 51 and a heating device (not shown in the figure). The cooled boiled water tank 6 is equipped with a heat exchange tube 62 capable of exchanging heat with the water inside the cooled boiled water tank 6; the heat exchange tube 62 is housed within the cooled boiled water tank 6. The outlet of the booster pump 2 is connected to the inlet of the reverse osmosis filter element 3 via a connecting pipe 72.

[0033] The reverse osmosis water purification system includes a flushing pipe 73, through which the pure water outlet of the reverse osmosis filter element 3 is connected to the inlet pipe 71. Specifically, the flushing pipe 73 includes a first pipe section 731 and a second pipe section 732. The inlet end of the heat exchange tube 62 is connected to the pure water outlet of the reverse osmosis filter element 3 through the first pipe section 731, and the outlet end of the heat exchange tube 62 is connected to the inlet pipe 71 through the second pipe section 732. The reverse osmosis water purification system also includes a pre-filter composite element 1. An inlet valve 811, the pre-filter composite element 1, a first TDS sensor 821, and a first temperature sensor 822 are sequentially arranged along the inlet direction of the inlet pipe 71. The outlet end of the heat exchange tube 62 is connected to the portion of the inlet pipe 71 located between the first temperature sensor 822 and the booster pump 2 through the second pipe section 732. The first pipe section 731 is provided with a second TDS sensor 823, a second temperature sensor 824 and a flow sensor 825 in sequence along the direction from its inlet to its outlet. The second pipe section 732 is provided with a third temperature sensor 826, a flushing valve 815 and a first check valve 831 in sequence along the direction from its inlet to its outlet.

[0034] The inlet end of the first outlet pipe 741 is connected to the portion of the first pipe section 731 located between the flow sensor 825 and the heat exchange tube 62. The outlet end of the first outlet pipe 741 is connected to the outlet nozzle 41. A normal temperature water outlet valve 812 is installed on the first outlet pipe 741. The inlet end of the second outlet pipe 742 is connected to the portion of the first pipe section 731 located between the flow sensor 825 and the second temperature sensor 824. The outlet end of the second outlet pipe 742 is connected to the water dispenser 42. A high-pressure switch 827 is installed on the second outlet pipe 742.

[0035] The wastewater outlet of the reverse osmosis filter element 3 is connected to the wastewater pipe 75, and the wastewater pipe 75 is equipped with a shut-off valve 813 and a wastewater valve 814 in sequence along its drainage direction.

[0036] The water dispenser also includes a first water supply pipe 761. The inlet end of the first water supply pipe 761 is connected to the part of the second pipe section 732 located upstream of the third temperature sensor 826, thereby achieving an indirect connection with the outlet end of the heat exchange pipe 62. The outlet end of the first water supply pipe 761 is connected to the inlet of the hot water tank 5. A first water supply valve 816 is provided on the first water supply pipe 761.

[0037] The outlet of the hot water tank 5 is connected to the hot water outlet pipe 771, and the outlet of the cooled boiled water tank 6 is connected to the cooled boiled water outlet pipe 772. The hot water outlet pipe 771 and the cooled boiled water outlet pipe 772 are connected to the water outlet 41 through the third outlet pipe 773. A hot water outlet valve 817 is installed on the hot water outlet pipe 771, and a cooled boiled water outlet valve 818 is installed on the cooled boiled water outlet pipe 772. A fourth temperature sensor 828 and a water pump 85 are sequentially installed on the third outlet pipe 773 along its water outlet direction.

[0038] The inlet end of the second water supply pipe 762 is connected to the portion of the hot water outlet pipe 771 located upstream of the hot water outlet valve 817, and the outlet end of the second water supply pipe 762 is connected to the inlet of the boiled water tank 6. A water supply pump 84 is installed on the second water supply pipe 762.

[0039] The exhaust ports of the hot tank 5 and the cool boiled water tank 6 are connected to the third exhaust pipe 783 through the first exhaust pipe 781 and the second exhaust pipe 782, respectively. The third exhaust pipe 783 is connected to the water vapor separator (not shown in the figure) inside the water outlet 41.

[0040] The hot water tank 5 is also equipped with a fifth temperature sensor (not shown in the figure) for detecting the internal water temperature, and the cooled boiled water tank 6 is also equipped with a sixth temperature sensor (not shown in the figure) for detecting the internal water temperature. The pumping speed of the booster pump 2 is adjustable so that the water flow speed of the second pipe section 732 can be adjusted by adjusting the pumping speed of the booster pump 2.

[0041] When preparing cooled boiled water, the inlet valve 811 is opened, the flushing valve 815 is closed, the first water supply valve 816 is opened, and the booster pump 2 is activated. Raw water flows through the inlet pipe 71 and then through the pre-filter composite element 1. After being filtered by the pre-filter composite element 1, the water enters the booster pump 2. After being pressurized by the booster pump 2, the water flows through the connecting pipe 72 to the reverse osmosis filter element 3. Under the action of the reverse osmosis filter element 3, pure water and wastewater are produced. The pure water flows sequentially through the first pipe section 731, the heat exchange pipe 62, and the first water supply pipe 761 before flowing into the heat tank 5. The wastewater flows through the wastewater pipe... 75 discharge; when the first liquid level sensor 51 detects that the water level in the hot tank 5 has reached the first set height, the booster pump 2 stops working, the first water supply valve 816 closes, and the heating device in the hot tank 5 starts working; when the fifth temperature sensor in the hot tank 5 detects that the water temperature has reached 100℃, the heating device stops working, the water supply pump 84 starts working, and the boiled water in the hot tank 5 is pumped into the cooled boiled water tank 6; when the second liquid level sensor 61 detects that the water level in the cooled boiled water tank 6 has reached the second set height, the water supply pump 84 stops working, the first When the water supply valve 816 is opened, the booster pump 2 starts working. Water flows through the inlet pipe 71 and then through the pre-filter composite element 1. After being filtered by the pre-filter composite element 1, the water enters the booster pump 2. After being pressurized by the booster pump 2, the water flows through the connecting pipe 72 to the reverse osmosis filter element 3. Under the action of the reverse osmosis filter element 3, pure water and wastewater are produced. The pure water flows sequentially through the first pipe section 731, the heat exchange pipe 62, and the first water supply pipe 761 before flowing into the heat tank 5. The wastewater is discharged through the wastewater pipe 75. When the first liquid level sensor 51 detects that the water level in the heat tank 5 has reached the first... When the set height is reached, the flushing valve 815 opens and the first water supply valve 816 closes. Pure water flows sequentially through the first pipe section 731, the heat exchange pipe 62, and the second pipe section 732 before flowing into the inlet pipe 71. Wastewater is discharged through the wastewater pipe 75. During this process, the pure water flowing through the heat exchange pipe 62 exchanges heat with the water in the cooled boiled water tank 6, causing the temperature of the water in the cooled boiled water tank 6 to decrease. When the sixth temperature sensor detects that the water temperature in the cooled boiled water tank 6 has reached the first set temperature, the booster pump 2 stops working, and cooled boiled water is formed in the cooled boiled water tank 6. As pure water flows sequentially through the first pipe section 731, heat exchange tube 62, and second pipe section 732 before flowing into the inlet pipe 71, the third temperature sensor 826 acquires the temperature of the flowing water in real time. When the water temperature rises to the second set temperature, the pumping speed of the booster pump 2 is increased, thereby increasing the amount of pure water produced by the reverse osmosis filter element 3. This increases the flow rate of pure water flowing through the heat exchange tube 62, reduces the temperature of the pure water flowing back to the inlet pipe 71, and keeps the water temperature of the water flowing through the second pipe section 732 below a certain level.

[0042] With this setup, the water dispenser can introduce purified water from the reverse osmosis water purification system into the heating tank 5, where it heats the water to boiling. This boiling water is then introduced into the cooled boiled water tank 6. Water flowing through the flushing pipe 73 of the reverse osmosis system passes through the heat exchange pipe 62 to lower the temperature of the boiled water in the cooled boiled water tank 6, thus turning the hot water into cooled boiled water. In this way, the water in the cooled boiled water tank 6 is entirely boiled water that has been cooled, making it truly cooled boiled water. Furthermore, while the water flowing through the flushing pipe 73 passes through the heat exchange pipe 62 to lower the temperature of the boiled water in the cooled boiled water tank 6, the water flowing out of the flushing pipe 73 returns to the inlet pipe 71, mixes with the raw water, and then flows sequentially through the booster pump 2 and the reverse osmosis filter element 3, thereby flushing the reverse osmosis filter element 3. In other words, the reverse osmosis filter element 3 is flushed simultaneously during the preparation of cooled boiled water.

[0043] The inlet end of the first water supply pipe 761 is connected to the portion of the second pipe section 732 located upstream of the third temperature sensor 826, thus achieving an indirect connection with the outlet end of the heat exchange pipe 62. The outlet end of the first water supply pipe 761 is connected to the inlet of the hot tank 5. Compared with the method of "the pure water outlet of the reverse osmosis filter element 3 being connected to the inlet of the hot tank 5 through a separate pipe", this reduces the length of the pipe used to supply water to the hot tank 5, thereby reducing manufacturing costs. In addition, the pure water prepared by the reverse osmosis filter element 3 first flows through the heat exchange pipe 62 and then flows to the hot tank 5 through the first water supply pipe 761. This allows the pure water to exchange heat with the water in the cooled boiled water tank 6 as it flows through the heat exchange pipe 62, achieving both cooling of the water in the cooled boiled water tank 6 and preheating of the water flowing into the hot tank 5, reducing the energy consumption required to heat the water in the hot tank 5, thereby reducing operating costs.

[0044] A third temperature sensor 826 is installed on the second pipe section 732. The pumping speed of the booster pump 2 is adjustable, so that the water flow rate of the second pipe section 732 can be adjusted by adjusting the pumping speed of the booster pump 2. In this way, during the preparation of boiled water, the water dispenser can obtain the temperature of the water flowing in the second pipe section 732 in real time, and adjust the water flow rate of the second pipe section 732 according to the water temperature in the second pipe section 732. This avoids the water temperature flowing to the inlet pipe 71 being too high, which would result in the water temperature flowing to the reverse osmosis filter element 3 being too high and affecting the service life of the reverse osmosis filter element 3.

[0045] It should be noted that the connection between the inlet end of the first water supply pipe 761 and the portion of the second pipe section 732 located upstream of the third temperature sensor 826 is only one specific configuration and can be adjusted in practical applications. For example, the inlet end of the first water supply pipe 761 can be directly connected to the outlet end of the heat exchange pipe 62. Alternatively, the heat exchange pipe 62 can be housed within the cooled boiled water tank 6. This is also a specific configuration and can be adjusted in practical applications. For example, the heat exchange pipe can be directly formed on the side wall of the cooled boiled water tank 6.

[0046] In another feasible embodiment, unlike the above embodiment, the flushing valve 815 and the first water supply valve 816 are not provided. The water dispenser includes a three-way valve. The inlet of the three-way valve is connected to the outlet of the heat exchange tube 62, the first outlet of the three-way valve is connected to the inlet of the second pipe section 732, and the second outlet of the three-way valve is connected to the inlet of the first water supply pipe 761. In this way, the pure water outlet of the reverse osmosis filter element 3 is selectively connected to the inlet of the heat tank 5 and the inlet pipe 71 through the first water supply pipe 761 and the second pipe section 732 using the three-way valve.

[0047] In another feasible embodiment, unlike the above embodiment, the height of the outlet of the hot water tank 5 is higher than the height of the inlet of the cooled boiled water tank 6, and a second water supply valve is installed on the second water supply pipe 762 instead of a water supply pump 84. When the second water supply valve is opened, the boiled water in the hot water tank 5 flows into the cooled boiled water tank 6 through the second water supply pipe 762 under the action of gravity.

[0048] In another feasible embodiment, unlike the above embodiment, the bottom of the hot water tank 5 is integrally connected to the top of the cold boiled water tank 6, and the outlet of the hot water tank 5 and the inlet of the cold boiled water tank 6 are directly connected through a water supply valve.

[0049] In another feasible embodiment, unlike the above embodiment, the inlet end of the first water supply pipe 761 is directly connected to the pure water outlet of the reverse osmosis filter element 3.

[0050] Based on the above embodiments, referring to Figure 2 Preferably, the water dispenser includes a housing 9, and a first cavity 911 and a second cavity 912 separated from each other are provided inside the housing 9. The pre-filter composite element 1 and the reverse osmosis filter element 3 are disposed in the second cavity 912, and the hot water tank 5 and the cold water tank 6 are disposed in the first cavity 911.

[0051] This design reduces the heat transfer from the hot tank 5 and the cold water tank 6 to the reverse osmosis filter element 3, which greatly reduces the risk of the reverse osmosis filter element 3 failing due to excessive temperature, improves the working environment of the reverse osmosis filter element 3, and ensures the service life of the reverse osmosis filter element 3.

[0052] Preferably, a third cavity 913 is also provided inside the housing 9, and the first cavity 911 and the second cavity 912 are separated by the third cavity 913.

[0053] This design further prevents heat transfer from the first chamber 911 to the reverse osmosis filter element 3 in the second chamber 912, thus more effectively reducing the risk of the reverse osmosis filter element 3 failing due to excessive temperature.

[0054] Preferably, the first cavity 911, the second cavity 912 and the third cavity 913 are distributed in layers along the vertical direction.

[0055] Since hot air tends to rise when heat is transferred through the air, the first chamber 911, the third chamber 913, and the second chamber 912 are distributed in layers along the vertical direction, which further reduces the transfer of heat from the first chamber 911 to the second chamber 912, and more effectively reduces the risk of the reverse osmosis filter element 3 failing due to excessive temperature.

[0056] Preferably, the booster pump 2, the water supply pump 84, and the water outlet pump 85 are disposed in the third cavity 913.

[0057] This design prevents the operating noise of the booster pump 2, the water supply pump 84, and the water outlet pump 85 from being transmitted outwards, thereby reducing the operating noise of the water dispenser and optimizing the user experience.

[0058] Specifically, such as Figure 2 As shown, the water dispenser includes a housing 9, within which a middle frame 91 is fitted to the inner wall of the housing. Inside the middle frame 91 are three spaced-apart cavities: a first cavity 911, a second cavity 912, and a third cavity 913. The first cavity 911, the third cavity 913, and the second cavity 912 are distributed in layers along a vertical direction, and the first cavity 911 and the second cavity 912 are separated by the third cavity 913. A hot water tank 5 and a cold water tank 6 are housed within the first cavity 911 and are fixedly connected to the middle frame 91. A booster pump 2 and a water replenishment pump 84 are also included. Figure 2 (Not shown in the image) and the water pump 85 are housed in the third chamber 913 and are fixedly connected to the middle frame 91. The pre-filter composite element 1 and the reverse osmosis filter element 3 are integrated together to form a composite filter element, which is housed in the second chamber 912 and fixedly connected to the middle frame 91. A portion of the following components are integrated on the water circuit board 79: inlet pipe 71, connecting pipe 72, flushing pipe 73, first pipe section 731, second pipe section 732, first outlet pipe 741, second outlet pipe 742, wastewater pipe 75, first water supply pipe 761, second water supply pipe 762, hot water outlet pipe 771, cooled boiled water outlet pipe 772, and third outlet pipe 773.

[0059] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A water dispenser, characterized in that, The water dispenser includes a reverse osmosis water purification system, a hot water tank (5), and a cold boiled water tank (6). The reverse osmosis water purification system includes an inlet pipe (71), a booster pump (2), and a reverse osmosis filter element (3) connected in sequence. The outlet of the hot water tank (5) is connected to the inlet of the cold boiled water tank (6), and the pure water outlet of the reverse osmosis filter element (3) is connected to the inlet of the hot water tank (5). The cooled boiled water tank (6) is equipped with a heat exchange tube (62) that can exchange heat with the water inside the cooled boiled water tank (6). The reverse osmosis water purification system includes a flushing pipe (73). The flushing pipe (73) includes a first pipe section (731) and a second pipe section (732). The inlet end of the heat exchange tube (62) is connected to the pure water outlet of the reverse osmosis filter element (3) through the first pipe section (731). The outlet end of the heat exchange tube (62) is connected to the part of the inlet pipe (71) located upstream of the booster pump (2) through the second pipe section (732).

2. The water dispenser according to claim 1, characterized in that, The water dispenser includes a first water supply pipe (761), the inlet end of the first water supply pipe (761) is connected to the outlet end of the heat exchange pipe (62), and the outlet end of the first water supply pipe (761) is connected to the inlet of the hot water tank (5). The pure water outlet of the reverse osmosis filter element (3) can be connected to the inlet of the hot water tank (5) through the heat exchange pipe (62) and the first water supply pipe (761).

3. The water dispenser according to claim 2, characterized in that, The first water supply pipe (761) is equipped with a first water supply valve (816), and the second pipe section (732) is equipped with a flushing valve (815).

4. The water dispenser according to claim 3, characterized in that, The inlet end of the first water supply pipe (761) is connected to the portion of the second pipe section (732) located upstream of the flushing valve (815).

5. The water dispenser according to claim 2, characterized in that, The water dispenser includes a three-way valve, the inlet of which is connected to the outlet of the heat exchange tube (62), the first outlet of which is connected to the inlet of the second pipe section (732), and the second outlet of which is connected to the inlet of the first water supply pipe (761).

6. The water dispenser according to any one of claims 1 to 5, characterized in that, The water dispenser includes a second water supply pipe (762), the inlet of which is connected to the outlet of the hot water tank (5), and the outlet of which is connected to the inlet of the cold boiled water tank (6). Water in the hot water tank (5) can flow into the cold boiled water tank (6) through the second water supply pipe (762).

7. The water dispenser according to claim 6, characterized in that, The height of the outlet of the hot water tank (5) is lower than the height of the inlet of the cold boiled water tank (6), and a water supply pump (84) is provided on the second water supply pipe (762).

8. The water dispenser according to claim 6, characterized in that, The height of the outlet of the hot water tank (5) is higher than the height of the inlet of the cold boiled water tank (6), and a second water supply valve is provided on the second water supply pipe (762).

9. The water dispenser according to any one of claims 1 to 5, characterized in that, A third temperature sensor (826) is provided on the second pipe section (732), and the water flow rate of the second pipe section (732) can be adjusted according to the detection value of the third temperature sensor (826).

10. The water dispenser according to any one of claims 1 to 5, characterized in that, The heat exchange tube (62) is housed in the cooled boiled water tank (6).

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