A cooling boiled water device with a water tank integrated heat exchange structure

Abstract

The utility model discloses a kind of cold boiled water equipment of water tank integrated heat exchange structure, it is related to cold boiled water equipment technical field, including water storage tank;Water storage tank includes water storage cavity, cold flow cavity and hot flow cavity;Cold flow cavity is located at the bottom of water storage cavity, spacer is equipped between the two, and water hole is equipped on spacer;Hot flow cavity is located at the bottom of cold flow cavity, and heat-conducting layer of complete isolation is equipped between the two;Hot flow cavity is equipped with water inlet and water outlet;Cold flow cavity is sequentially connected with water pumping unit and heating component by pipeline at back;Wherein, the outlet of heating component downstream is equipped with branched straight outlet pipeline and cooling pipeline;Cooling pipeline is connected to water inlet simultaneously;Water outlet is connected with cold boiled water pipeline simultaneously after;Straight outlet pipeline and cold boiled water pipeline are all connected to water outlet nozzle;Water outlet valve includes one or more, for making one water outlet in straight outlet pipeline and cold boiled water pipeline. By integrating heat exchange part in water storage tank, both machine structure is simplified, and energy recycling is also realized.

Description

Technical Field

[0001] This utility model relates to the technical field of boiled water cooling equipment, specifically to a boiled water cooling equipment with an integrated heat exchange structure in a water tank. Background Technology

[0002] As a household appliance providing convenient and healthy drinking water, boiled water dispensers are increasingly favored by families and offices. Currently, boiled water dispensers on the market are mainly divided into two types: storage-type and instantaneous-type. Their development trend focuses on achieving the core functions of rapid heating and sterilization followed by efficient cooling to a suitable inlet temperature (i.e., producing cooled boiled water). To achieve rapid cooling, existing technologies generally rely on adding a separate heat exchanger, which directly leads to a series of problems such as complex overall structure, increased manufacturing costs, increased energy consumption, and inconvenient installation and maintenance. The existence of this separate heat exchange module has become a key bottleneck restricting further optimization of the product in terms of compactness, economy, and energy efficiency. Therefore, there is an urgent need to provide a boiled water dispenser with an integrated heat exchange structure in the water tank to solve the above-mentioned technical problems. Summary of the Invention

[0003] To address the problems in related technologies, this utility model proposes a water tank integrated heat exchange structure for cooled boiled water, which can achieve efficient cooling of water after rapid heating and sterilization without the need for a separate heat exchanger.

[0004] This utility model is implemented as follows:

[0005] A water tank integrated heat exchange structure for cooled boiled water includes a water storage tank, a water pump unit, a heating element, a water outlet valve, and a water outlet nozzle;

[0006] The water storage tank includes a water storage chamber, a cold flow chamber, and a hot flow chamber; the cold flow chamber is located at the bottom of the water storage chamber, with a partition between them and a water passage hole on the partition; the hot flow chamber is located at the bottom of the cold flow chamber, with a completely isolated heat-conducting layer between them; the hot flow chamber has an inlet and an outlet.

[0007] The cold flow chamber is connected in sequence to the water pump unit and the heating element via pipes; wherein, downstream of the water outlet of the heating element, there is a branched straight outlet pipe and a cooling pipe; the cooling pipe is connected to the water inlet; the water outlet is connected to a cooled boiled water pipe; both the straight outlet pipe and the cooled boiled water pipe are connected to the water outlet.

[0008] The water outlet valve includes one or more valves for discharging water from one of the direct outlet pipe and the cooled boiled water pipe.

[0009] This utility model provides a cooled boiled water device that integrates the heat exchange component inside a water storage tank, dividing it into three isolated areas: a water storage chamber, a cold flow chamber, and a hot flow chamber, thus constructing a highly efficient internal heat exchange system. The room-temperature water in the water storage chamber serves as a natural cold source, continuously supplying a low-temperature medium to the lower cold flow chamber via gravity flow and perforations. The cold flow chamber, as the core heat exchange area, directly absorbs heat from the high-temperature water in the hot flow chamber. Firstly, it eliminates the need for a separate and complex external heat exchanger, significantly simplifying the overall structure and reducing manufacturing costs and failure rates. Secondly, it achieves internal energy recycling; while rapidly cooling the drinking water in the hot flow chamber to a palatable temperature (making cooled boiled water), it preheats the cold water to be heated, greatly reducing energy consumption for subsequent heating and improving overall energy efficiency. In summary, these features make the device more compact and reliable, while ensuring a user-friendly experience of quickly producing cooled boiled water.

[0010] Furthermore, the water storage tank includes a detachable tank body and a chassis; a horizontal partition is provided inside the tank body, with openings at both the top and bottom; the upper opening of the tank body is connected to a detachable top cover, forming the water storage cavity between the two; the chassis is the heat-conducting layer; the upper surface of the chassis is used to tightly connect with the lower opening of the tank body, so that the cold flow cavity is formed between the chassis and the tank body; the lower surface of the chassis is provided with a vertically downward extending convex tube, one end of which communicates with the cold flow cavity, and the other end of which communicates with the water pump unit pipe;

[0011] The lower surface of the chassis is also fitted with a coiled heat exchange tube; the inner cavity of the heat exchange tube is the heat flow cavity, and the two ends are the water inlet and the water outlet, respectively.

[0012] The chassis and heat exchange tubes are made of materials such as aluminum alloy, aluminum, copper, and stainless steel, and are used for liquid-liquid heat exchange.

[0013] Furthermore, an annular waterproof sealing ring is provided between the housing and the chassis; the waterproof sealing ring has an upward fitting groove on the side facing the housing, the fitting groove being used to tightly fit with the lower opening edge of the housing; the waterproof sealing ring has a downward protruding rib on the side facing the chassis.

[0014] When the housing is assembled and fixed to the chassis, the ribs are compressed and pressed tightly against the upper surface of the chassis.

[0015] Furthermore, a number of internally threaded posts are evenly distributed along the side of the housing; the internally threaded posts extend vertically with their openings facing downwards; the surface of the chassis is provided with a number of assembly holes; the internally threaded posts and the assembly holes are connected one by one and fixed by screws, so that the housing and the chassis are tightly connected.

[0016] Furthermore, the outlet valve is a two-way solenoid valve; the two-way solenoid valves include two valves, respectively located in the direct outlet pipe and the cooling pipe. The two two-way solenoid valves are used to independently control the flow in the two pipes.

[0017] Furthermore, the outlet valve is a three-way solenoid valve; the three-way solenoid valve has one inlet end and two outlet ends, wherein the inlet end is connected to the outlet end of the heating element; the two outlet ends of the three-way solenoid valve are respectively connected to the direct outlet pipe and the cooling pipe.

[0018] Furthermore, the outlet end of the cooled boiled water pipe is connected to the direct outlet pipe, and the connection position is located downstream of the three-way solenoid valve.

[0019] Furthermore, the pipe between the three-way solenoid valve and the heating element is also connected to an exhaust pipe; the exhaust pipe has an inlet end and an outlet end; a breathable and waterproof membrane is provided between the inlet end and the connected pipe; the outlet end is connected to the water storage chamber.

[0020] Furthermore, the water storage chamber is also connected to a water supply pipe; the water supply pipe has an inlet end and an outlet end; the outlet end of the water supply pipe is connected to a float valve; the float valve is located inside the water storage chamber.

[0021] A float valve typically consists of a float, a connecting rod, and a valve connected together. When there is sufficient water in the reservoir, the float is floating and the valve is in a closed water supply pipe state. When there is insufficient water in the reservoir, the float moves down with the water level and drives the connecting rod to open the valve.

[0022] The water supply pipe can be connected to an external water source.

[0023] Furthermore, a raw water tank is provided outside the water storage tank; the raw water tank includes a separate raw water chamber and a wastewater chamber; the raw water chamber is sequentially connected to a self-priming pump and a filter element with one inlet and two outlets; the filter element has a pure water outlet and a wastewater outlet; the pure water outlet is connected to the water replenishment pipe; the wastewater outlet is connected to the wastewater pipe and connected to the wastewater chamber; a solenoid valve is provided on the wastewater pipe.

[0024] The beneficial effects are as follows:

[0025] This invention provides a water cooling and boiling water device with an integrated heat exchange structure in the water tank. By integrating the heat exchange component inside the water tank and dividing the water tank into three isolated areas—a water storage chamber, a cold flow chamber, and a hot flow chamber—a highly efficient internal heat exchange system is constructed. The room-temperature water in the water storage chamber serves as a natural cold source, continuously supplying a low-temperature medium to the lower cold flow chamber via gravity flow and openings. The cold flow chamber, as the core heat exchange area, directly absorbs heat from the high-temperature water in the hot flow chamber.

[0026] Compared to existing technologies, firstly, it eliminates the need for a separate and complex external heat exchanger, significantly simplifying the overall structure and reducing manufacturing costs and failure rates; secondly, it enables internal energy recycling, meaning that while rapidly cooling the drinking water in the hot flow chamber to a palatable temperature (making cooled boiled water), it also preheats the cold water to be heated, greatly reducing the energy consumption for subsequent heating and improving the overall energy efficiency of the machine.

[0027] In summary, the above settings make the equipment structure more compact and reliable, while ensuring a user experience of quickly producing cooled boiled water. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the water circuit connection of the cooled boiled water device provided in an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the water storage tank provided in an embodiment of the present utility model;

[0030] Figure 3 for Figure 2 A schematic diagram of the exploded half-section structure;

[0031] Figure 4 for Figure 2 A sectional view.

[0032] Figure label:

[0033] 1. Water storage tank; 1-1. Tank body; 1-11. Partition; 1-12. Water passage hole; 1-2. Base; 1-21. Protruding tube; 1-3. Water storage cavity; 1-4. Cold flow cavity; 1-5. Hot flow cavity; 1-6. Heat exchange tube; 1-7. Waterproof sealing ring; 1-71. Fitting groove; 1-72. Protruding rib; 1-8. Internally threaded post; 1-9. Assembly hole;

[0034] 2. Pump unit; 3. Heating element; 4. Outlet valve; 5. Outlet nozzle;

[0035] 6. Direct outlet pipe; 7. Cooling pipe; 8. Cooled boiled water pipe; 9. Check valve;

[0036] 10. Exhaust pipe; 11. Breathable and waterproof membrane; 12. Water supply pipe; 13. Float valve;

[0037] 14. Raw water tank; 14-1. Raw water chamber; 14-2. Wastewater chamber;

[0038] 15. Self-priming pump; 16. Filter element; 17. Wastewater pipe; 18. Wastewater solenoid valve. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] like Figures 1 to 4 As shown, this embodiment provides a water tank integrated heat exchange structure for cooled boiled water, including a water storage tank 1, a water pump unit 2, a heating element 3, a water outlet valve 4, and a water outlet 5.

[0041] In this embodiment, the water storage tank 1 includes a detachable housing 1-1 and a chassis 1-2. A horizontal partition 1-11 is provided inside the housing 1-1, with openings at both the top and bottom. Water passage holes 1-12 are provided on the partition 1-11. The upper opening of the housing 1-1 is connected to a detachable top cover, forming a water storage cavity 1-3 above the partition 1-11. The chassis 1-2 is a heat-conducting layer. The upper surface of the chassis 1-2 is tightly connected to the lower opening of the housing 1-1, forming a cold flow cavity 1-4 between the chassis 1-2 and the partition 1-11 of the housing 1-1. A vertically downward-extending convex tube 1-21 is provided on the lower surface of the chassis 1-2, communicating with the cold flow cavity 1-4. A coiled heat exchange tube 1-6 is also attached to the lower surface of the chassis 1-2; the inner cavity of the heat exchange tube 1-6 is a hot flow cavity 1-5, with an inlet and an outlet at each end. In this embodiment, the chassis 1-2 is made of aluminum alloy and is used for liquid-liquid heat exchange between the cold flow chamber 1-4 and the hot flow chamber 1-5. Since the water storage chamber 1-3 and the cold flow chamber 1-4 are separated by only a water passage hole 1-12, when the liquid in the cold flow chamber 1-4 is pumped out, the liquid in the water storage chamber 1-3 is immediately replenished to the cold flow chamber 1-4. Therefore, even if the liquid in the cold flow chamber 1-4 exchanges heat with the hot flow chamber 1-5, causing the temperature of the liquid passing through the cold flow chamber 1-4 to rise, the heat or temperature will not significantly affect the water storage chamber 1-3.

[0042] In this embodiment, an annular waterproof sealing ring 1-7 is provided between the housing 1-1 and the chassis 1-2; the waterproof sealing ring 1-7 has an upward-facing fitting groove 1-71 on the side facing the housing 1-1, which is used to tightly fit with the lower opening edge of the housing 1-1; the waterproof sealing ring 1-7 has a downward-protruding rib 1-72 on the side facing the chassis 1-2; when the housing 1-1 and the chassis 1-2 are assembled and fixed, the rib 1-72 is compressed and tightly pressed against the upper surface of the chassis 1-2. By providing the waterproof sealing ring 1-7, water leakage is prevented after the housing 1-1 and the chassis 1-2 are connected.

[0043] In this embodiment, a plurality of internally threaded posts 1-8 are evenly distributed along the side of the housing 1-1; the internally threaded posts 1-8 extend vertically with their openings facing downwards; the surface of the chassis 1-2 is provided with a plurality of assembly holes 1-9; the internally threaded posts 1-8 and the assembly holes 1-9 are connected one by one and fixed by screws, so that the housing 1-1 and the chassis 1-2 are tightly connected.

[0044] In this embodiment, the outlet valve 4 is a three-way solenoid valve, which has one inlet and two outlets. The pump unit 2 and the heating element 3 are sequentially connected to the cold flow chamber 1-4 via pipes, with the pipes connected to the convex pipe 1-21. The inlet of the three-way solenoid valve is connected to the outlet pipe of the heating element 3; the two outlets of the three-way solenoid valve are connected to the direct outlet pipe 6 and the cooling pipe 7, respectively.

[0045] Among them, the direct outlet pipe 6 is directly connected to the water outlet 5, and the cooling pipe 7 is directly connected to the water inlet of the heat exchange tubes 1-6. In addition, the water outlet of the heat exchange tubes 1-6 is directly connected to the cooled boiled water pipe 8; the other end of the cooled boiled water pipe 8 is connected to the direct outlet pipe 6 and is located between the three-way solenoid valve and the water outlet 5, serving as a branch of the direct outlet pipe 6.

[0046] Boiling water heated by heating element 3 can flow directly to outlet 5 through direct outlet pipe 6, at which point the end of the three-way solenoid valve flowing to cooling pipe 7 is closed. Alternatively, the end of the three-way solenoid valve flowing to direct outlet pipe 6 can be closed, while the other outlet is opened. In this case, boiling water flows to hot flow chamber 1-5, where it exchanges heat with cold flow chamber 1-4, cooling the high-temperature sterilized boiling water to cooled boiled water, which is then output from outlet 5. In addition, a check valve 9 is also provided on direct outlet pipe 6, located between the three-way solenoid valve and cooled boiled water pipe 8.

[0047] In this embodiment, the pipe between the three-way solenoid valve and the heating component 3 is also connected to the exhaust pipe 10; the exhaust pipe 10 has an air inlet end and an air outlet end; a breathable and waterproof membrane 11 is provided between the air inlet end and the connected pipe; the water outlet end is connected to the water storage chamber 1-3.

[0048] The cooled boiled water device provided by this utility model integrates the heat exchange component inside the water storage tank 1, dividing it into three isolated areas: a water storage chamber 1-3, a cold flow chamber 1-4, and a hot flow chamber 1-5, thus constructing a highly efficient internal heat exchange system. The room-temperature water in the water storage chamber 1-3 serves as a natural cold source, continuously supplying the lower cold flow chamber 1-4 with a low-temperature medium through gravity flow and openings. The cold flow chamber 1-4 acts as the core heat exchange area, directly absorbing heat from the high-temperature water in the hot flow chamber 1-5. Firstly, it eliminates the need for a separate and complex external heat exchanger, significantly simplifying the overall structure and reducing manufacturing costs and failure rates. Secondly, it achieves internal energy recycling; while rapidly cooling the drinking water in the hot flow chamber 1-5 to a palatable temperature (making cooled boiled water), it preheats the cold water to be heated, greatly reducing the energy consumption for subsequent heating and improving the overall energy efficiency. In summary, the above design makes the device structure more compact and reliable, while ensuring a user experience of quickly producing cooled boiled water.

[0049] In this embodiment, the water storage chamber 1-3 is also connected to the water supply pipe 12; the water supply pipe 12 has an inlet end and an outlet end; the outlet end of the water supply pipe 12 is connected to the float valve 13; the float valve 13 is located inside the water storage chamber 1-3.

[0050] The float valve 13 typically includes a float, a connecting rod, and a valve connected together. When the water volume in the water storage chamber 1-3 is sufficient, the float is in a floating state, and the valve is in a closed state of the water supply pipe 12. When the water volume in the water storage chamber 1-3 is insufficient, the float moves down with the water surface and drives the connecting rod to open the valve.

[0051] The water supply pipe 12 can be connected to an external water source, such as a water dispenser that can be directly connected to an external water pipe. In this embodiment, a raw water tank 14 is provided outside the water storage tank 1; the raw water tank 14 includes a separate raw water chamber 14-1 and a wastewater chamber 14-2; the raw water chamber 14-1 is connected in sequence to a self-priming pump 15 and a filter element 16 with one inlet and two outlets; the filter element 16 has a pure water outlet and a wastewater outlet; the pure water outlet is connected to the water supply pipe 12; the wastewater outlet is connected to the wastewater pipe 17 and then to the wastewater chamber 14-2; a wastewater solenoid valve 18 is provided on the wastewater pipe 17. By setting up a filtration structure, the water in the raw water chamber 14-1 can be initially removed of impurities and disinfected.

[0052] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A water tank integrated heat exchange structure for cooled boiled water, characterized in that: Includes a water storage tank, a pump unit, a heating element, a water outlet valve, and a water outlet nozzle; The water storage tank includes a water storage chamber, a cold flow chamber, and a hot flow chamber; the cold flow chamber is located at the bottom of the water storage chamber, with a partition between them and a water passage hole on the partition; the hot flow chamber is located at the bottom of the cold flow chamber, with a completely isolated heat-conducting layer between them; the hot flow chamber has an inlet and an outlet. The cold flow chamber is connected in sequence to the water pump unit and the heating element via pipes; wherein, downstream of the water outlet of the heating element, there is a branched straight outlet pipe and a cooling pipe; the cooling pipe is connected to the water inlet; the water outlet is connected to a cooled boiled water pipe; both the straight outlet pipe and the cooled boiled water pipe are connected to the water outlet. The water outlet valve includes one or more valves for discharging water from one of the direct outlet pipe and the cooled boiled water pipe.

2. The cooled boiled water device with an integrated heat exchange structure for a water tank according to claim 1, characterized in that: The water storage tank includes a detachable tank body and a chassis; a horizontal partition is provided inside the tank body, with openings at both the top and bottom; the upper opening of the tank body is connected to a detachable top cover, forming the water storage cavity between the two; the chassis is the heat-conducting layer; the upper surface of the chassis is used to tightly connect with the lower opening of the tank body, so that the cold flow cavity is formed between the chassis and the tank body; the lower surface of the chassis is provided with a vertically downward extending convex tube, one end of which communicates with the cold flow cavity, and the other end of which communicates with the water pump unit pipe; The lower surface of the chassis is also fitted with a coiled heat exchange tube; the inner cavity of the heat exchange tube is the heat flow cavity, and the two ends are the water inlet and the water outlet, respectively.

3. A water tank integrated heat exchange structure for cooled boiled water according to claim 2, characterized in that: An annular waterproof sealing ring is provided between the housing and the chassis; the waterproof sealing ring has an upward fitting groove on the side facing the housing, which is used to tightly fit with the lower opening edge of the housing; the waterproof sealing ring has a downward protruding rib on the side facing the chassis. When the housing is assembled and fixed to the chassis, the ribs are compressed and pressed tightly against the upper surface of the chassis.

4. A water tank integrated heat exchange structure for cooled boiled water according to claim 2, characterized in that: A plurality of internally threaded posts are evenly distributed along the side of the housing; the internally threaded posts extend vertically and have their openings facing downwards; a plurality of assembly holes are provided on the surface of the chassis; the internally threaded posts and the assembly holes are connected one by one and fixed together by screws, so that the housing and the chassis are tightly connected.

5. A water tank integrated heat exchange structure for cooled boiled water according to claim 1, characterized in that: The outlet valve is a two-way solenoid valve; the two-way solenoid valves include two valves, which are respectively located in the direct outlet pipe and the cooling pipe.

6. A water tank integrated heat exchange structure for cooled boiled water according to claim 1, characterized in that: The outlet valve is a three-way solenoid valve; the three-way solenoid valve has one inlet end and two outlet ends, wherein the inlet end is connected to the outlet end of the heating element; the two outlet ends of the three-way solenoid valve are respectively connected to the direct outlet pipe and the cooling pipe.

7. A water tank integrated heat exchange structure for cooled boiled water according to claim 6, characterized in that: The outlet of the cooled boiled water pipe is connected to the direct outlet pipe, and the connection point is located downstream of the three-way solenoid valve.

8. A water tank integrated heat exchange structure for cooled boiled water according to claim 6, characterized in that: The pipe between the three-way solenoid valve and the heating element is also connected to the exhaust pipe; the exhaust pipe has an inlet end and an outlet end; a breathable and waterproof membrane is provided between the inlet end and the connected pipe; the outlet end is connected to the water storage chamber.

9. A water tank integrated heat exchange structure for cooled boiled water according to claim 1, characterized in that: The water storage chamber is also connected to a water supply pipe; the water supply pipe has an inlet end and an outlet end; the outlet end of the water supply pipe is connected to a float valve; the float valve is located inside the water storage chamber.

10. A water tank integrated heat exchange structure for cooled boiled water according to claim 9, characterized in that: The water storage tank is equipped with a raw water tank outside; the raw water tank includes a separate raw water chamber and a wastewater chamber; the raw water chamber is connected in sequence to a self-priming pump and a filter element with one inlet and two outlets; the filter element has a pure water outlet and a wastewater outlet; the pure water outlet is connected to the water replenishment pipe; the wastewater outlet is connected to the wastewater pipe and connected to the wastewater chamber; a solenoid valve is installed on the wastewater pipe.

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