True boiling water path capable of adjusting different boiling points and water dispenser

Abstract

The utility model belongs to the technical field of water purification equipment, and discloses a true boiling water path for adjusting different boiling points and a water dispenser, the water path comprises a first-stage heating module and a second-stage heating module, the first-stage heating module is provided with a water supply pipeline and a first-stage water outlet pipeline, and the first-stage water outlet pipeline is provided with a first pressure adjusting piece; the input end of the second-stage heating module is communicated with the first-stage water outlet pipeline, the output end of the second-stage heating module is provided with a second-stage water outlet pipeline, the second-stage water outlet pipeline comprises at least two parallel control branches, the control branches are provided with second pressure adjusting pieces corresponding to different hydraulic pressures, and one of the second-stage heating modules is communicated with one of the control branches. Therefore, different hydraulic states are generated in the second-stage heating module, and the water outlet requirements of different temperatures are met. Compared with the prior art, the water path can accurately control the internal hydraulic pressure of the heating modules, and on the basis that the water temperature is heated to 100 DEG C through the first-stage heating module, the outlet water temperature is adjusted through the second-stage heating module, so that different outlet water temperature requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a true boiling water path and a water dispenser for adjusting different boiling points. Background Art

[0002] At present, when providing the instant heating function, desktop water purifiers on the market generally face a technical challenge: due to the physical characteristics and technical limitations of the instant heating system itself, it is difficult for such devices to directly heat hot water to the boiling point (i.e., 100 °C) and then discharge water. Although some advanced desktop water purifiers adopt innovative heating technologies to try to increase the outlet water temperature, the outlet water temperature usually can only be close to rather than truly reach the boiling point. This not only affects the user's drinking experience, especially in situations where hot water is needed for making tea, brewing coffee, etc., but more importantly, from the perspective of hygiene and safety, water that is not completely boiled may not be able to completely kill bacteria and viruses in the water. In addition, when the desktop water purifier prepares drinking water at a temperature below 100 °C, the usual method is to directly heat tap water to the rated temperature and then output it. However, this method may not be thorough enough in terms of sterilization.

[0003] In summary, the existing desktop water purifiers have the following disadvantages: due to the limitations of the instant heating system, it is difficult for desktop water purifiers to heat hot water to the boiling point, and even if the outlet water temperature is increased, it can only be close to 100 °C; in addition, when heating water at different temperatures, the heating stops after the water is heated to the preset temperature, and the sterilization is not thorough. Summary of the Invention

[0004] The first object of the present invention is to solve the problem that it is difficult for existing desktop water purifiers to heat the water temperature to 100 °C, and to provide a true boiling water path for adjusting different boiling points that can be applied to desktop water purifiers.

[0005] To achieve the above object of the invention, the present invention adopts the following technical solutions:

[0006] The true boiling water path for adjusting different boiling points includes a primary heating module and a secondary heating module. The input end of the primary heating module is configured with a water supply pipeline, and the output end is configured with a primary water outlet pipeline. A first pressure regulating component is provided on the primary water outlet pipeline. The input end of the secondary heating module is communicated with the primary water outlet pipeline, and its output end is configured with a secondary water outlet pipeline. The secondary water outlet pipeline includes at least two parallel control branches. The control branch is provided with a second pressure regulating component corresponding to different hydraulic pressures. The secondary heating module is selectively communicated with one of the control branches, so as to generate different hydraulic states inside the secondary heating module to meet the water outlet requirements at different temperatures.

[0007] The water circuit of the present utility model can be applied to a tabletop water purifier. Through the combination of the primary and secondary heating modules, precise control of the water temperature can be achieved. The primary heating module provides preliminary heating. When the hydraulic pressure in the primary heating module is adjusted by the first pressure regulating member to be greater than the atmospheric pressure, the boiling point in the primary heating module can be made greater than 100°C, so that the heating module will not boil when heating the water to 100°C, and the water can be heated to 100°C and then left to stand and cool. The secondary heating module can then make further temperature adjustments. The secondary water outlet pipeline includes at least two parallel control branches, and each branch is provided with a second pressure regulating member. This design enables the water circuit system to control the outlet water temperature by switching different control branches. For example, when lower-temperature water is required, the boiling point of the secondary heating module can be reduced by lowering the hydraulic pressure, thereby reducing the outlet water temperature. Compared with the prior art, the water circuit of the present utility model can precisely control the internal hydraulic pressure of the heating module, thoroughly sterilize while meeting the outlet water temperature requirements, and improve the safety of drinking water.

[0008] Further, the second pressure regulating member is a fluid control plug, and the apertures of the fluid control plugs of each control branch are different. This solution controls the internal hydraulic pressure by controlling the flow rate at the output end of the secondary water outlet module.

[0009] Further, the first pressure regulating member is a check valve. During operation, the passage of the primary water outlet pipeline is controlled by closing or opening the check valve, thereby controlling the hydraulic pressure of the primary heating module and effectively preventing backflow. Alternatively, the first pressure regulating member is any one of a flow limiting valve, a flow regulating valve, a throttle valve, a reduced diameter pipe, and a pressure relief valve.

[0010] Further, a switch member for controlling the on-off of the pipeline is provided on the control branch.

[0011] Further, the switch member is a solenoid valve.

[0012] Further, a quick cooling module is further included. The quick cooling module is arranged on the primary water outlet pipeline to modulate boiling water into cold boiled water, thereby improving the cooling efficiency of the boiling water.

[0013] Preferably, the quick cooling module is an instant heating element. A heat exchange channel is provided in the instant heating element, and the heat exchange channel communicates with the primary water outlet pipeline, so that when the boiling water passes through the heat exchange channel, it exchanges heat with the instant heating element, thereby cooling down. Alternatively, the quick cooling module is a refrigerator.

[0014] Alternatively, the rapid cooling module includes a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is arranged on the water supply pipeline, and the second heat exchange channel is arranged on the first-stage water outlet pipeline, so that the normal-temperature water in the water supply pipeline exchanges heat with the boiling water in the first-stage water outlet pipeline, thereby modulating the boiling water into cold boiled water. In this solution, by setting the rapid cooling module, the normal-temperature water in the water supply pipeline and the boiling water on the first-stage water outlet pipeline can exchange heat, so that the hot water prepared by the first-stage heating module can be quickly cooled into cold boiled water. And the normal-temperature water is preheated and then exchanges heat through the first-stage heating module, which can improve the heating rate, shorten the heating time and reduce the heating energy consumption.

[0015] Further, the rapid cooling module includes a housing and heat exchange tubes. The heat exchange tubes include an outer tube and an inner tube nested inside and outside. An installation cavity is provided in the housing, and several of the heat exchange tubes are arranged side by side in the installation cavity. The inner tubes of the heat exchange tubes are sequentially connected end to end to form the second heat exchange channel. One side of the housing communicates with the first input port and the first output port of the first heat exchange channel to the outside, and the opposite side is provided with a second input port and a second output port communicating the second heat exchange channel to the outside. In this solution, the first heat exchange channel communicates with the outside through one side of the housing for the input and output of normal-temperature water; the second heat exchange channel communicates with the outside through the other side of the housing for the input and output of boiling water. The heat exchange tubes adopt the design of an outer tube and an inner tube nested inside and outside, forming an efficient heat exchange structure. The fluid in the inner tube and the fluid between the outer tube and the housing can exchange heat through the tube wall. In addition, the inner and outer tubes are respectively connected end to end to form a heat exchange channel, so that the fluid forms a reciprocating flow in the installation cavity, increasing the residence time of the fluid in the heat exchange tube, thereby improving the heat exchange efficiency.

[0016] Further, end caps are provided on the two opposite outer sides of the installation cavity. The end caps are provided with a first reversing groove and a second reversing groove that are isolated from each other. One end of the adjacent outer tubes is communicated through the first reversing groove, and the other end is relatively closed. One end of the adjacent inner tubes is communicated through the second reversing groove, and the other end is closed. In this solution, the first reversing groove is used to communicate one end of two adjacent outer tubes or inner tubes, so that the fluid reverses in the installation cavity to form a reciprocating flow. The other ends of the outer tube and the inner tube are relatively closed, ensuring that the fluid reverses at the reversing groove and will not flow out directly, ensuring that the fluid in the tube passes through each tube in turn. And the end caps not only provide the function of fluid reversing, but also play a role in structural support and sealing, ensuring the stability and sealing of the heat exchange system.

[0017] Further, the end cover includes a groove cover and a plate cover that are hermetically sealed together. The commutation groove is a groove formed on one side surface of the groove cover. The plate cover is disposed on the side of the groove cover where the groove is formed to seal the first commutation groove and the second commutation groove formed on the groove. The other side of the groove cover is connected to a plurality of heat exchange tubes, and a first interface communicating the first commutation groove with the outer tube and a second interface communicating the second commutation groove and the inner tube are provided at corresponding positions. This solution is the specific structural design of the end cover. In this solution, the end cover forms the first commutation groove and the second commutation groove through the cooperation of the groove cover and the plate cover.

[0018] Further, a sealing connection ring is further included. The ends of the outer tube and the inner tube are connected and fixed through the sealing connection ring. The sealing connection ring is provided with clearance holes corresponding to the inner tube and the outer tube. This solution enables the connection between the heat exchange tube and the end cover to be closely fitted, which can improve the sealing performance and stability of the quick-cooling module.

[0019] Another object of the present invention is to provide a water dispenser, and the water dispenser is provided with the water circuit of the above solution. Therefore, it has all the advantages of the above solution. Description of the Drawings

[0020] Figure 1 is the system block diagram of the water circuit of the present invention;

[0021] Figure 2 is the overall schematic diagram of the quick-cooling module;

[0022] Figure 3 is the structural exploded view of the quick-cooling module;

[0023] Figure 4 is the cross-sectional view of the quick-cooling module.

[0024] Reference Numeral Description:

[0025] Primary heating module 1, secondary heating module 2, water supply pipeline 3, pure water tank 31, water pump 32, filter pipeline 33, self-priming pump 335, PPC composite filter element 331, RO membrane filter element 332, raw water tank 334, waste water discharge pipeline 34, switch control member 35, one-way valve 36, primary water outlet pipeline 4, first pressure regulating member 41, secondary water outlet pipeline 5, switch member 51, second pressure regulating member 52, water outlet nozzle 53, control branch 54, quick-cooling module 6, outer housing 61, first input port 611, first output port 612, second input port 613, second output port 614, heat exchange tube 62, outer tube 621, inner tube 622, installation cavity 63, end cover 64, groove cover 641, plate cover 642, groove 643, first interface 644, second interface 645, sealing connection ring 646. Detailed Embodiments

[0026] The technical solution of the present utility model will be further described with reference to the accompanying drawings as follows:

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by "upper", "lower", "left", "right", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] See Figures 1-4 As shown, the present utility model discloses a true boiling water path for adjusting different boiling points, which includes a primary heating module 1 and a secondary heating module 2. The input end of the primary heating module 1 is configured with a water supply pipeline 3, and the output end is configured with a primary water outlet pipeline 4. A first pressure regulating member 41 is provided on the primary water outlet pipeline 4. The input end of the secondary heating module 2 is communicated with the primary water outlet pipeline 4, and its output end is configured with a secondary water outlet pipeline 5. The secondary water outlet pipeline 5 includes at least two parallel control branches 54. Each control branch 54 is provided with a second pressure regulating member 52 corresponding to different hydraulic pressures. The secondary heating module is selectively communicated with one of the control branches 54, so as to generate different hydraulic states inside the secondary heating module 2 to meet the water outlet requirements at different temperatures.

[0029] The above-mentioned second pressure regulating member 52 is a fluid control plug, and the apertures of the fluid control plugs of each control branch 54 are different.

[0030] The above-mentioned fluid control plug is a damping plug.

[0031] The above-mentioned first pressure regulating member 41 is a one-way valve 36. During operation, the passage of the primary water outlet pipeline 4 is controlled by closing or opening the one-way valve 36, so as to control the hydraulic pressure of the primary heating module 1 and effectively prevent backflow.

[0032] A switch member 51 for controlling the on / off of the pipeline is provided on the above-mentioned control branch 54.

[0033] The above-mentioned switch member 51 is a solenoid valve.

[0034] The output end of the above-mentioned secondary water outlet pipeline 5 is configured with a water outlet nozzle 53.

[0035] The above-mentioned primary heating module and secondary heating module are both instant heating modules.

[0036] In one embodiment, it further includes a quick cooling module 6. The quick cooling module 6 is arranged on the primary water outlet pipeline 4 and is used to adjust boiling water to cold boiled water.

[0037] The above-mentioned quick-cooling module is an instant heating element (not shown in the figure). An exchange heat passage is provided inside the instant heating element, and the exchange heat passage communicates with the first-stage water outlet pipeline 4, so that when the boiling water passes through the exchange heat passage, it exchanges heat with the instant heating element, thereby cooling down. In this solution, the quick-cooling module can be set as an instant heating element made of instant heating material as a whole, or an instant heating element with the inner wall of the exchange heat passage made of instant heating material.

[0038] Of course, the quick-cooling module 6 can also be set as a refrigerator (not shown in the figure). The specific structure of the refrigerator can apply the existing refrigerator structure scheme, such as the existing semiconductor refrigerator.

[0039] A pure water tank 31 and a water pump 32 are provided on the above-mentioned water supply pipeline 3. The water supply pipeline 3 controls the water in the pure water tank 31 to be transported to the first-stage heating module 1 through the water pump 32.

[0040] A filter pipeline 33 is further configured on the above-mentioned pure water tank 31. The input end of the filter pipeline 33 is connected to the tap water source, and the output end is connected to the pure water tank 31. A self-priming pump 335, a PPC composite filter element 331, and an RO membrane filter element 332 are sequentially arranged on the filter pipeline 33 from the input end to the output end. The RO membrane filter element 332 is provided with a waste water discharge end, and the waste water discharge end is configured with a waste water discharge pipeline 34.

[0041] A switch control member 35 and a one-way valve 36 are provided on the above-mentioned waste water discharge pipeline 34, and the filtered water generated by the filter pipeline 33 is discharged through the waste water discharge pipeline 34.

[0042] The above-mentioned switch control member 35 is an electromagnetic valve.

[0043] The output end of the above-mentioned water supply pipeline 3 is provided with a raw water tank 334. The raw water tank 334 is provided with two water tanks, which are respectively used for holding tap water and waste water.

[0044] The water path system of the present utility model can achieve precise control of the water temperature through the combination of the first-stage and second-stage heating modules 2. The first-stage heating module 1 provides preliminary heating, while the second-stage heating module 2 can perform further temperature adjustment. The second-stage water outlet pipeline 5 includes at least two parallel control branches 54, and a fluid control plug is provided on each branch. This design enables the system to control the outlet water temperature by switching the control branch 54. Compared with the prior art, the water path of the present utility model can thoroughly sterilize while meeting the outlet water temperature requirement by precisely controlling the internal hydraulic pressure of the heating module, and minimize unnecessary energy consumption. This energy-efficient design helps to reduce the operating cost.

[0045] Embodiment 2:

[0046] The difference between this embodiment and the above is that the rapid cooling module 6 includes a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is arranged on the water supply pipeline 3, and the second heat exchange channel is arranged on the first-stage water outlet pipeline 4, so that the normal temperature water in the water supply pipeline 3 exchanges heat with the boiling water in the first-stage water outlet pipeline 4, thereby modulating the boiling water into cooled boiled water. In this solution, by setting the rapid cooling module 6, the normal temperature water in the water supply pipeline 3 and the boiling water on the first water outlet pipeline can exchange heat, so that the hot water prepared by the first-stage heating module 1 can be quickly cooled into cooled boiled water. The normal temperature water is preheated and then exchanges heat through the first-stage heating module 1, which can improve the heating rate, shorten the heating time and reduce the heating energy consumption.

[0047] See Figures 2-4 As shown, the above-mentioned rapid cooling module 6 includes a housing 61 and a heat exchange tube 62. The heat exchange tube 62 includes an outer tube 621 and an inner tube 622 which are nested inside and outside. An installation cavity 63 is provided in the housing 61. A plurality of heat exchange tubes 62 are arranged side by side in the installation cavity 63. The inner tubes 622 of the heat exchange tubes 62 are connected end to end in sequence to form a second heat exchange channel. One side of the housing 61 communicates with the first input port 611 and the first output port 612 of the first heat exchange channel and the outside. The opposite side is provided with a second input port 613 and a second output port 614 that communicate the second heat exchange channel with the outside. In this solution, the first heat exchange channel communicates with the outside through one side of the housing 61, and is used for the input and output of normal temperature water; the second heat exchange channel communicates with the outside through the other side of the housing 61, and is used for the input and output of boiling water. The heat exchange tube 62 is designed with an outer tube 621 and an inner tube 622 nested inside and outside, forming an efficient heat exchange structure. The fluid in the inner tube 622 can exchange heat with the fluid between the outer tube 621 and the housing 61 through the tube wall. In addition, the outer tubes 621 are respectively connected end to end to form a heat exchange channel, so that the fluid forms a reciprocating flow in the installation cavity 63, increasing the residence time of the fluid in the heat exchange tube 62, thereby improving the heat exchange efficiency.

[0048] End caps 64 are provided on the two opposite outer sides of the installation cavity 63. The end caps 64 are provided with a first commutation groove and a second commutation groove that are isolated from each other. One end of adjacent outer tubes 621 is connected through the first commutation groove, and the other end is relatively closed. One end of adjacent inner tubes 622 is connected through the second commutation groove, and the other end is closed. In this solution, one end of adjacent two outer tubes 621 or inner tubes 622 is connected through the commutation groove, so that the fluid commutes in the installation cavity 63 to form a reciprocating flow. The other ends of the outer tube 621 and the inner tube 622 are relatively closed, ensuring that the fluid commutes at the commutation groove and will not flow out directly, ensuring that the fluid in the tube passes through each tube in sequence. The end cap 64 not only provides the function of fluid commutation, but also plays a role of structural support and sealing, ensuring the stability and sealing of the heat exchange system.

[0049] The above-mentioned end cap 64 includes a groove cap 641 and a plate cap 642 that are hermetically sealed together. The commutation groove is a groove 643 formed on one side surface of the groove cap 641. The plate cap 642 is disposed on the side of the groove cap 641 where the groove 643 is formed to seal the first commutation groove and the second commutation groove formed on the groove 643. The other side of the groove cap 641 is connected to a plurality of heat exchange tubes 62, and a first interface 644 communicating the first commutation groove with the outer tube 621 and a second interface 645 communicating the second commutation groove and the inner tube 622 are provided at corresponding positions. This solution is the specific structural design of the end cap 64. In this solution, the end cap 64 forms the first commutation groove and the second commutation groove through the cooperation of the groove cap 641 and the plate cap 642.

[0050] It further includes a sealing connection ring 646. The ends of the outer tube 621 and the inner tube 622 are connected and fixed through the sealing connection ring 646. The sealing connection ring 646 is provided with clearance holes corresponding to the inner tube 622 and the outer tube 621. This solution makes the connection between the heat exchange tube 62 and the end cap 64 closely fit, which can improve the sealing performance and stability of the quick-cooling module 6.

[0051] The above-mentioned inner tube 622 is located in the middle position of the outer tube 621, and the distance between the inner tube wall and the outer tube wall is the same. This solution makes the cold water flow rate and velocity passing through the inner tube 622 and the outer tube 621 the same, so that the cooling effect of the cold water acts on the hot water evenly.

[0052] At least one end of the groove cap 641 is detachably connected to the outer housing 61. This solution improves the convenience of installation, disassembly and maintenance of the quick-cooling module 6.

[0053] Embodiment Three:

[0054] This embodiment discloses a water dispenser (not shown in the figure) which is provided with the water circuit of the above solution. Compared with the prior art, the boiling points of the primary and secondary heating modules of the water dispenser in this embodiment can both exceed 100 °C, so that the heating temperature can reach 100 °C, and the outlet water temperature can be controlled by switching different control branches, thoroughly sterilizing while meeting the outlet water temperature requirements and improving the safety of drinking water.

[0055] In the description of this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. According to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A true boiling water path for adjusting different boiling points, characterized in that: It includes a primary heating module (1) and a secondary heating module (2). The input end of the primary heating module (1) is configured with a water supply pipeline (3), and the output end is configured with a primary water outlet pipeline (4). A first pressure regulating element (41) is provided on the primary water outlet pipeline (4). The input end of the secondary heating module (2) is communicated with the primary water outlet pipeline (4), and its output end is configured with a secondary water outlet pipeline (5). The secondary water outlet pipeline (5) includes at least two parallel control branches (54). The control branch (54) is provided with a second pressure regulating element (52) corresponding to different hydraulic pressures. The secondary heating module (2) is selectively communicated with one of the control branches (54), so as to generate different hydraulic states inside the secondary heating module (2) to meet the water outlet requirements at different temperatures.

2. The waterway according to claim 1, characterized in that: The second pressure regulating element (52) is a fluid control plug, and the apertures of the fluid control plugs of each control branch (54) are different.

3. The waterway according to claim 1, wherein: The first pressure regulating element (41) is a one-way valve; or, the first pressure regulating element (41) is any one of a flow limiting valve, a flow regulating valve, a throttle valve, a reducing pipe, and a pressure relief valve.

4. The waterway according to claim 1, wherein: A switch element (51) for controlling the on-off of the pipeline is provided on the control branch (54).

5. The waterway according to any one of claims 1 to 3, characterized in that: It further includes a rapid cooling module (6), and the rapid cooling module (6) is arranged on the primary water outlet pipeline (4).

6. The waterway according to claim 5, wherein: The rapid cooling module (6) includes a first heat exchange channel and a second heat exchange channel. The first heat exchange channel is arranged on the water supply pipeline (3), and the second heat exchange channel is arranged on the primary water outlet pipeline (4), so that the normal temperature water in the water supply pipeline (3) exchanges heat with the boiling water in the primary water outlet pipeline (4), thereby modulating the boiling water into cold boiled water.

7. The water circuit according to claim 5, wherein: The rapid cooling module is an instant heating element, and a heat exchange channel is arranged inside the instant heating element, and the heat exchange channel is communicated with the primary water outlet pipeline (4); or, the rapid cooling module is a refrigerator.

8. The waterway according to claim 6, characterized in that: The rapid cooling module (6) includes a housing (61) and a heat exchange pipe (62). The heat exchange pipe (62) includes an outer pipe (621) and an inner pipe (622) nested inside and outside. An installation cavity (63) is provided inside the housing (61). A plurality of the heat exchange pipes (62) are arranged side by side in the installation cavity (63). The inner pipes (622) of the heat exchange pipes (62) are sequentially connected end to end to form the second heat exchange channel. One side of the housing (61) communicates the first heat exchange channel with the first input port (611) and the first output port (612) outside, and the opposite side is provided with a second input port (613) and a second output port (614) communicating the second heat exchange channel with the outside.

9. The waterway according to claim 8, characterized in that: End caps (64) are provided on the two opposite outer sides of the installation cavity (63). The end caps (64) are provided with a first commutation groove and a second commutation groove that are isolated from each other. One end of the adjacent outer pipes (621) is communicated through the first commutation groove, and the other end is relatively closed. One end of the adjacent inner pipes (622) is communicated through the second commutation groove, and the other end is closed.

10. Water dispenser, characterized in that: The water dispenser is provided with a water path according to any one of claims 1-9.

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