Boiled water system and drinking water device

Abstract

The present invention relates to the technical field of drinking water equipment, and specifically provides a boiled water making system and a drinking water device. The boiled water making system includes a heating body, a heat exchanger, and a refrigeration device; wherein the water inlet of the heating body is connected to the water inlet end; the heat exchanger includes a shell and a hot water inlet, a warm water outlet, a warm water inlet, a cold water outlet formed on the shell, and a hot water flow channel and a cold water flow channel formed in the shell; the refrigeration device is used to cool the water in the cold water flow channel; the water outlet of the heating body is connected to the hot water inlet, the warm water outlet is connected to the warm water inlet and the water outlet end respectively, and the cold water outlet is connected to the water outlet end. The boiled water heated by the heating body enters the hot water flow channel for heat exchange and cooling to form warm water. When the warm water passes through the cold water flow channel, the refrigeration device cools the cold water flow channel, and both the warm water and the cold water flow to the water outlet end and can be mixed to produce boiled water of different temperatures, thereby shortening the cooling time of the water and improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of drinking water equipment, and in particular provides a boiled water making system and a drinking water device. Background Art

[0002] Currently, refrigerated water dispensers typically produce cold water by directly chilling filtered pure water. Compared to the process used to produce hot water, this chilling process doesn't effectively remove bacteria and viruses from the water. Therefore, this method fails to address user concerns about cold water quality, resulting in unsatisfactory results overall.

[0003] Existing hot water refrigeration dispensers use a hot tank to heat the water to a boiling state for disinfection. The heated water is then cooled through a heat exchanger and stored in a cold tank for user access. However, the water in the cold tank is typically maintained within a set temperature range, preventing users from directly accessing cold water at different temperatures. The cold water dispenser's output temperature is relatively uniform, limiting users' choice of cold water temperature and resulting in a poor user experience.

[0004] Accordingly, this field requires a new boiled water making system to solve the above problems. Summary of the Invention

[0005] In order to solve the above problems in the prior art, that is, to solve the problem that the temperature of the cold water output from the existing refrigerated water dispenser is relatively single.

[0006] In a first aspect, the present invention provides a boiled water making system, which has a water inlet and a water outlet, and the boiled water making system includes: a heating body, whose water inlet is connected to the water inlet; a heat exchanger, which includes a shell and a hot water inlet, a warm water outlet, a warm water inlet, a cold water outlet formed on the shell, and a hot water flow channel and a cold water flow channel formed in the shell, the two ends of the hot water flow channel are respectively connected to the hot water inlet and the warm water outlet, and the two ends of the cold water flow channel are respectively connected to the warm water inlet and the cold water outlet; a refrigeration device, which is used to cool the water in the cold water flow channel; wherein the water outlet of the heating body is connected to the hot water inlet, the warm water outlet is respectively connected to the warm water inlet and the water outlet, and the cold water outlet is connected to the water outlet.

[0007] In the case of the preferred technical solution of the above-mentioned boiled water making system, the hot water flow channel includes a heat exchange tube located in the cavity of the shell, the cold water flow channel is the cavity of the shell, and the refrigeration device includes a refrigerant pipeline, which surrounds the outer wall of the shell or is located in the cavity of the shell.

[0008] In the case of the preferred technical solution of the above-mentioned boiled water making system, the water outlet includes a regulating valve and a faucet, the regulating valve includes a first interface, a second interface and a third interface, the first interface is connected to the warm water outlet, the second interface is connected to the cold water outlet, and the third interface is connected to the faucet.

[0009] In the case of the preferred technical solution of the above-mentioned boiled water making system, the water inlet of the heating body and the water outlet of the heating body are respectively provided with a first temperature detection device and a second temperature detection device.

[0010] In the case of the preferred technical solution of the above-mentioned boiled water making system, a third temperature detection device is provided between the third interface and the faucet.

[0011] In the case of the preferred technical solution of the above-mentioned boiled water making system, a one-way check valve is provided between the water inlet of the heating body and the water inlet end.

[0012] In the case of the preferred technical solution of the above-mentioned boiled water making system, the boiled water making system further comprises a filtering device, and the water purification end of the filtering device is connected to the water inlet of the heating body.

[0013] In the case of the preferred technical solution of the above-mentioned boiled water production system, the filtration device includes a booster pump and a reverse osmosis filter element connected in sequence along the water flow direction, and the water purification end is the pure water outlet of the reverse osmosis filter element.

[0014] In the case of the preferred technical solution of the above-mentioned boiled water making system, a flow control valve is provided between the water purification end of the filtering device and the water inlet of the heating body.

[0015] In a second aspect, the present invention further provides a drinking water device, comprising the boiled water making system.

[0016] Those skilled in the art will understand that the boiled water making system of the present invention includes a heating body, a heat exchanger and a refrigeration device; wherein, the water inlet of the heating body is connected to the water inlet end; the heat exchanger includes a shell and a hot water inlet, a warm water outlet, a warm water inlet, a cold water outlet formed on the shell and a hot water flow channel and a cold water flow channel formed in the shell, the two ends of the hot water flow channel are respectively connected to the hot water inlet and the warm water outlet, and the two ends of the cold water flow channel are respectively connected to the warm water inlet and the cold water outlet; the refrigeration device is used to cool the water in the cold water flow channel; the water outlet of the heating body is connected to the hot water inlet, the warm water outlet is respectively connected to the warm water inlet and the water outlet end, and the cold water outlet is connected to the water outlet end. Through such an arrangement, the boiling water flowing out of the heating body enters the hot water flow channel in the heat exchanger through the hot water inlet for heat exchange and cooling to form warm water, that is, once-cooled boiled water. The warm water enters the cold water flow channel of the heat exchanger through the warm water inlet to cool the hot water flow channel for heat exchange, and the refrigerant pipeline of the refrigeration device cools the warm water and then flows out of the cold water outlet, that is, twice-cooled boiled water. The once-cooled boiled water and the twice-cooled boiled water both flow to the water outlet and can be mixed to produce boiled water of different temperatures, which shortens the time for cooling boiled water. In addition, the boiled water making system is compact in size, which improves the user experience.

[0017] Furthermore, the hot water flow path includes heat exchange tubes located within the housing chamber, the cold water flow path is the housing chamber, and the refrigeration device includes refrigerant piping, which is wrapped around the outer wall of the housing or located within the housing chamber. The refrigerant piping of the refrigeration device facilitates direct cooling of the primary cooling water flowing through the housing chamber, while also ensuring effective heat exchange and cooling of the hot water within the heat exchange tubes.

[0018] Furthermore, the water outlet includes a regulating valve and a faucet, and the regulating valve includes a first interface, a second interface, and a third interface. The first interface is connected to the warm water outlet, the second interface is connected to the cold water outlet, and the third interface is connected to the faucet. Through this arrangement, the flow rate of the primary cooled boiled water flowing through the first interface and the flow rate of the secondary cooled boiled water flowing through the second interface can be controlled to adjust the boiled water to different temperatures.

[0019] Furthermore, a flow control valve is provided between the purified water end of the filtration device and the water inlet of the heating element. This valve not only allows the pure water flowing through the heating element to be heated to a boil at a uniform flow rate, but also controls the water inlet flow to the heating element, thereby reducing the pressure in the piping of the boiled water production system and ensuring its safety.

[0020] In addition, the drinking water device further provided by the present invention on the basis of the above-mentioned technical solution has the technical effects of the above-mentioned boiled water making system due to the adoption of the above-mentioned boiled water making system. Compared with the existing drinking water device, the drinking water device of the present invention can produce boiled water of different temperatures, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 1 It is a schematic diagram of the waterway structure of the boiled water making system of the present invention.

[0023] List of reference numerals:

[0024] 1. Heat exchanger; 11. Shell; 111. Warm water inlet; 112. Cold water outlet; 12. Heat exchange tube; 121. Hot water inlet; 122. Warm water outlet; 21. Compressor; 211. Medium outlet; 212. Medium inlet; 22. Refrigerant pipeline; 221. Refrigerant inlet; 222. Refrigerant outlet; 23. Cooling fan; 3. Heating element; 4. Regulating valve; 41. First interface; 42. Second interface; 43. Third interface; 5. Faucet; 6. Booster pump; 7. Reverse osmosis filter element; 81. One-way check valve; 82. Flow control valve; 83. Wastewater solenoid valve; 91. First temperature detection device; 92. Second temperature detection device; 93. Third temperature detection device. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0026] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0027] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; they can be mechanical connections, direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Based on the problem that the outlet temperature of cold water in the existing refrigerated water dispenser is too single as pointed out in the background technology, the present invention exchanges heat and cools the heated boiled water in the heat exchanger, and the warm water returns to the cold water channel and directly cools the warm water to output cold water, so that cold water and warm water flow to the water outlet to prepare cold boiled water of different temperatures, thereby improving the user experience.

[0029] Specifically, if Figure 1 As shown, the boiled water making system of the present invention includes a water inlet, a water outlet, a heating body 3, a heat exchanger 1 and a refrigeration device; the water inlet of the heating body 3 is connected to the water inlet; the heat exchanger 1 includes a shell 11 and a hot water inlet 121, a warm water outlet 122, a warm water inlet 111, a cold water outlet 112 formed on the shell 11, and a hot water flow channel and a cold water flow channel formed in the shell, the two ends of the hot water flow channel are respectively connected to the hot water inlet 121 and the warm water outlet 122, and the two ends of the cold water flow channel are respectively connected to the warm water inlet 111 and the cold water outlet 112; the refrigeration device is used to cool the cold water in the cold water flow channel between the warm water inlet 111 and the cold water outlet 112; the water outlet of the heating body 3 is connected to the hot water inlet 121 of the heat exchanger 1, the warm water outlet 122 of the heat exchanger 1 is respectively connected to the warm water inlet 111 and the water outlet of the heat exchanger 1, and the cold water outlet 112 of the heat exchanger 1 is connected to the water outlet.

[0030] For example, Figure 1 As shown, the heat exchanger 1 in the embodiment of the present invention has a cylindrical shell 11 with closed ends. The warm water inlet 111 of the heat exchanger 1 is formed on the top surface of the shell 11 of the heat exchanger 1, and the hot water inlet 121, warm water outlet 122, and cold water outlet 112 of the heat exchanger 1 are all formed on the bottom surface of the shell 11 of the heat exchanger 1. The hot water flow path of the heat exchanger 1 includes a coil spring-shaped heat exchange tube 12 located within the chamber of the shell 11. The two ends of the heat exchange tube 12 are respectively connected to the hot water inlet 121 and the warm water outlet 122. The warm water inlet 111 and the cold water outlet 112 of the heat exchanger 1 are respectively connected to the chamber of the shell 11.

[0031] It should be noted that the specific structure of the hot water flow channel of the heat exchanger 1 of the present invention is not limited to the above-mentioned coil spring-shaped tubular structure. According to actual applications, those skilled in the art can design the hot water flow channel as a tubular structure with a continuous end-to-end U-shaped structure, S-shaped structure or Z-shaped structure, or the hot water flow channel can also be designed as a continuous spiral disc structure, etc. Such flexible adjustment and change of the specific structure of the hot water flow channel does not deviate from the basic principles and scope of the present invention, and should be limited within the scope of protection of the present invention.

[0032] Continue reading Figure 1 The refrigeration device in this embodiment of the present invention includes a compressor 21, an evaporator, a cooling fan 23, and piping connecting the evaporator and compressor 21. The piping includes a refrigerant pipeline 22 and a heat dissipation pipeline. The refrigerant pipeline 22 spirally wraps around the outer wall of the housing 11, and the heat dissipation fan 23 is disposed opposite the heat dissipation pipeline. The refrigerant pipeline 22 includes a refrigerant inlet 221 and a refrigerant outlet 222. The compressor 21 is provided with a medium inlet 212 and a medium outlet 211. The refrigerant inlet 221 of the refrigerant pipeline 22 communicates with the medium outlet 211 of the compressor 21, and the refrigerant outlet 222 of the refrigerant pipeline 22 communicates with the medium inlet 212 of the compressor 21. When the refrigerant in the refrigerant pipeline 22 evaporates and absorbs heat, it flows back into the compressor 21. After the refrigerant is cooled by heat dissipation management, it reenters the refrigerant pipeline 22 through the medium outlet 211 of the compressor 21 to evaporate and absorb heat for cooling.

[0033] It should be noted that the shell 11 of the heat exchanger 1 is made of a metal material with good thermal conductivity. For example, the shell 11 is a steel shell or a copper shell, so that the refrigerant pipeline 22 can effectively cool the cold water in the chamber of the shell 11.

[0034] In addition, it should be noted that the refrigerant pipeline 22 of the present invention is not limited to the above-mentioned setting method. According to actual applications, technical personnel in this field can also set the refrigerant pipeline 22 in the cavity of the shell 11. This flexible adjustment and change of the specific position of the refrigerant pipeline 22 does not deviate from the basic principles and scope of the present invention, and should be limited within the protection scope of the present invention.

[0035] Preferably, if Figure 1 As shown, the water outlet end of the embodiment of the present invention includes a regulating valve 4 and a faucet 5. The regulating valve 4 includes a first interface 41, a second interface 42 and a third interface 43. The first interface 41 is connected to the warm water outlet 122, the second interface 42 is connected to the cold water outlet 112, and the third interface 43 is connected to the faucet 5.

[0036] When the raw water at the water inlet enters the heating body 3 and is heated to a boiling water state, the boiling water enters the heat exchange tube 12 in the heat exchanger 1 through the hot water inlet 121 of the heat exchanger 1 to exchange heat and cool down to form warm water, that is, boiled water with one-step cooling.

[0037] When only the first interface 41 and the third interface 43 are opened, the warm water passes through the heat exchange tube 12 and flows to the faucet 5 through the first interface 41 and the third interface 43 in sequence, and the user can obtain warm water, that is, boiled water with a reduced temperature in one go.

[0038] When only the second interface 42 and the third interface 43 are opened, another path of warm water enters the chamber of the shell 11 of the heat exchanger 1 through the warm water inlet, and the refrigerant pipe 22 surrounding the outside of the shell 11 cools down the warm water in the chamber to form cold water, that is, secondary cooled boiled water. The cold water passes through the cold water outlet 112 of the heat exchanger 1 and flows to the faucet 5 in turn through the second interface 42 and the third interface 43 of the regulating valve 4, so that the user can obtain secondary cooled boiled water.

[0039] When the first interface 41, the second interface 42 and the third interface 43 are opened, by adjusting the flow rate of the first cooled boiled water flowing through the first interface 41 of the regulating valve 4 and the flow rate of the second cooled boiled water flowing through the second interface 42 of the regulating valve 4, boiled water of different temperatures can be adjusted, and the boiled water flows to the faucet 5 through the third interface 43.

[0040] Preferably, if Figure 1 As shown, the water inlet end of the embodiment of the present invention includes a filtering device, and the water purification end of the filtering device is connected to the water inlet of the heating body 3.

[0041] For example, Figure 1 As shown, the filtration device includes a booster pump 6 and a reverse osmosis filter element 7 connected in sequence along the water flow direction. The clean water end is the pure water outlet of the reverse osmosis filter element 7. A flow control valve 82 is provided between the pure water outlet of the reverse osmosis filter element 7 and the water inlet of the heating body 3. A wastewater solenoid valve 83 is provided on the wastewater pipeline of the reverse osmosis filter element 7.

[0042] When the booster pump 6 delivers the raw water to and filters it through the reverse osmosis filter element 7 , the filtered large amount of pure water is adjusted by the flow control valve 82 so that the pure water flow rate can match the water inlet flow rate of the water inlet of the heating body 3 .

[0043] It should be noted that the setting method of the filter device of the present invention is not limited to the above-mentioned embodiment. According to actual applications, those skilled in the art may use an integrated composite filter element in the filter device, or may use an ultrafiltration membrane filter element, as long as the filter device can filter the water source. Such adjustments and changes to the specific structure of the filter device do not deviate from the principles and scope of the present invention, and should be limited within the scope of protection of the present invention.

[0044] Continue reading Figure 1 In the embodiment of the present invention, a one-way check valve 81 is provided between the water inlet and the water inlet end of the heating body 3. Specifically, the one-way check valve 81 is located between the water inlet of the heating body 3 and the pure water outlet of the reverse osmosis filter element 7, wherein the one-way check valve 81 is located downstream of the flow control valve 82.

[0045] By such an arrangement, the hot water heated in the heating body 3 is prevented from flowing back out from the water inlet of the heating body 3 , thereby improving the safety of the use of the heating body 3 .

[0046] Preferably, continue to refer to Figure 1 A first temperature detection device 91 and a second temperature detection device 92 are respectively provided at both ends of the heating body 3. The third temperature detection device 93 is provided between the third interface 43 of the regulating valve 4 and the faucet 5. The second temperature detection device 92 is located downstream of the one-way check valve 81.

[0047] Through such a setting, by detecting the temperature of the water inlet and the water outlet of the heating body 3, on the one hand, the heating power of the heating body 3 can be adjusted according to the water inlet temperature; on the other hand, by comparing the temperatures detected by the first temperature detection device 91 and the second temperature detection device 92, dry burning of the heating body 3 in a water-free state can be avoided, thereby improving the safety of use of the heating body 3.

[0048] It should be noted that the first temperature detection device 91 , the second temperature detection device 92 and the third temperature detection device 93 are all temperature sensors.

[0049] Furthermore, the present invention does not impose any restrictions on the specific structure of the heating element 3. As long as the first heating element 3 is capable of heating and boiling the water flowing therethrough, those skilled in the art may customize the structure of the heating element 3 according to actual needs. For example, the heating element 3 may be configured as a tubular structure having an electric heating wire, or as an electromagnetic heating device, etc. Such flexible adjustments and modifications do not deviate from the basic principles and scope of the present invention and are intended to be within the scope of protection of the present invention.

[0050] Finally, the present invention also provides a drinking water device, which includes the above-mentioned boiled water making system.

[0051] When the drinking water device is activated, the filter unit's booster pump 6 feeds raw water into the reverse osmosis filter element 7 for filtration. The filtered wastewater is then discharged through the wastewater solenoid valve. The purified water filtered by the reverse osmosis filter element 7 enters the water inlet of the heating element 3 through the flow control valve 82. This flow control valve 82 ensures that the purified water flowing through the heating element 3 is heated to a boil at a uniform flow rate. Furthermore, it controls the water flow rate into the heating element 3, reducing the pressure in the piping of the boiled water system and ensuring its safety.

[0052] The boiled water passes through heat exchange tubes 12 located within housing 11 of heat exchanger 1, exchanging heat with the water inlet within housing 11 for cooling. The primary cooling temperature of the boiled water in the drinking water device is set at 20°C. The primary cooling temperature of the boiled water, after entering the chamber of housing 11 and passing through refrigerant pipes 22 of the refrigeration unit and absorbing heat, is set at 2°C. This means the secondary cooling temperature of the boiled water is 2°C.

[0053] By controlling the regulating valve 4, the flow of the first-cooled boiled water with a temperature of 20 degrees Celsius and the second-cooled boiled water with a temperature of 2 degrees Celsius is adjusted. With the help of the third temperature detection device 93, the mixed water outlet temperature is fed back, and then boiled water of any temperature within the range of 2-20 degrees Celsius can be modulated, thereby meeting the user's demand for boiled water at different temperatures and improving the user experience.

[0054] Thus far, the technical solutions of the present invention have 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 scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A boiled water system, comprising a water inlet and a water outlet, characterized in that: The boiled water making system comprises: a heating body, the water inlet of which is in communication with the water inlet end; A heat exchanger comprising a housing, a hot water inlet, a warm water outlet, a warm water inlet, and a cold water outlet formed on the housing, and a hot water flow channel and a cold water flow channel formed in the housing, wherein the two ends of the hot water flow channel are respectively connected to the hot water inlet and the warm water outlet, and the two ends of the cold water flow channel are respectively connected to the warm water inlet and the cold water outlet; a refrigeration device, which is used to cool the water in the cold water flow channel; The water outlet of the heating body is connected to the hot water inlet, the warm water outlet is connected to the warm water inlet and the water outlet respectively, and the cold water outlet is connected to the water outlet; The boiling water flowing out of the heating body enters the hot water flow channel in the heat exchanger through the hot water inlet for heat exchange and cooling to form warm water, that is, primary cooled boiled water. The warm water enters the cold water flow channel of the heat exchanger through the warm water inlet to cool the hot water flow channel, and the refrigerant pipeline of the refrigeration device cools the warm water and then flows out cold water from the cold water outlet, that is, secondary cooled boiled water.

2. The boiled water making system according to claim 1, characterized in that: The hot water flow channel includes a heat exchange tube located in the cavity of the shell, the cold water flow channel is the cavity of the shell, and the refrigeration device includes a refrigerant pipeline, which surrounds the outer wall of the shell or is located in the cavity of the shell.

3. The boiled water making system according to claim 1, characterized in that: The water outlet includes a regulating valve and a faucet. The regulating valve includes a first interface, a second interface and a third interface. The first interface is connected to the warm water outlet, the second interface is connected to the cold water outlet, and the third interface is connected to the faucet.

4. The boiled water making system according to claim 1, characterized in that: The water inlet of the heating body and the water outlet of the heating body are respectively provided with a first temperature detection device and a second temperature detection device.

5. The boiled water making system according to claim 3, characterized in that: A third temperature detection device is provided between the third interface and the faucet.

6. The boiled water making system according to claim 1, characterized in that: A one-way check valve is provided between the water inlet of the heating body and the water inlet end.

7. The boiled water making system according to claim 1, characterized in that: The water inlet end includes a filter device, and the water purification end of the filter device is communicated with the water inlet of the heating body.

8. The boiled water making system according to claim 7, characterized in that: The filtering device comprises a booster pump and a reverse osmosis filter element connected in sequence along the water flow direction, and the water purification end is the pure water outlet of the reverse osmosis filter element.

9. The boiled water making system according to claim 7, characterized in that: A flow control valve is provided between the water purification end of the filtering device and the water inlet of the heating body.

10. A drinking water device, characterized in that: It comprises the boiled water making system according to any one of claims 1 to 9.

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