Cold boiled water channel with front-end backflow function

Abstract

The utility model discloses a cold boiled water channel with front-end backflow, which relates to the technical field of water dispenser cooling and comprises a pure water tank, a first water pump, a cold boiled water module and a water outlet nozzle which are sequentially connected through pipelines. The cold boiled water module comprises a first instant heating unit and a cooling module, and the cooling module comprises a cold boiled water output end; after being heated by the first instant heating unit, water is output to an output water path through a cold boiled water output end of the cooling module, and a water outlet nozzle is arranged at the tail end of the output water path; the cold water return path comprises a second water pump and a first one-way valve, the initial end of the cold water return path is connected to the cold boiled water output end of the cooling module, and the tail end of the cold water return path is connected to the pure water tank. When the cooling module is overheated and the cooling function fails, the first instant heating unit is closed, the second water pump is opened, the cooling module is rapidly cooled until the cooling function is recovered, and compared with the prior art, the improvement and upgrading cost of a water dispenser and the like is low.

Description

Technical Field

[0001] The utility model relates to the technical field of water dispenser cooling, and particularly relates to a cold boiled water path with front-end reflux. Background Art

[0002] With the improvement of living standards, people's demand for healthy drinking water is also increasing day by day. Currently, people's demands are not only limited to quickly obtaining disinfected and sterilized boiled water. In order to improve the drinking experience, it is also required to convert the boiled water into warm water or even cold boiled water that can be quickly and directly drunk. As a kind of drinking water that is naturally cooled after being heated, cold boiled water has the advantages of purity, no impurities, good taste, etc., and is therefore highly favored by consumers. In order to meet this demand, cold boiled water dispensers have emerged as the times require.

[0003] The technological innovation of cold boiled water dispensers is mainly reflected in two aspects: heating and cooling. In terms of heating, the instant heating module heating technology is adopted, which can quickly heat cold water to the boiling state; in terms of cooling, through different technical implementation methods, such as plate water-cooled heat exchangers, countercurrent heat exchange and other cooling modules, the rapid cooling of boiling water is realized, so as to provide users with safe and energy-saving cold boiled drinking water. For example, the patent document with the publication number CN220832674U provides a cold boiled water making system and an integrated cold boiled water faucet.

[0004] However, during the long process of cooling and reducing the temperature of boiling water by the cooling module, its own structure will also absorb the heat of the boiling water and it is difficult to dissipate the heat, until finally the ability to cool and reduce the temperature of the boiling water is affected, and even the ability to cool down is temporarily lost, resulting in users being unable to quickly obtain cold boiled water. And adding heat dissipation units to the cooling module, such as cold fins, cooling fans, etc., has a relatively high transformation cost, especially the need to increase equipment costs and the difficulty of designing and transforming the internal structure space of the water dispenser. Summary of the Invention

[0005] In view of the problems in the related art, the utility model proposes a cold boiled water path with front-end reflux, which can restore the cooling effect of the cooling module when the cooling module cannot perform cooling work due to excessive heat, and has a low transformation cost.

[0006] The utility model is realized as follows:

[0007] A cold boiled water path with front-end reflux includes a pure water tank, a first water pump, a cold boiled water module and a water outlet nozzle connected in sequence through pipelines; it is characterized in that:

[0008] The cold boiled water module includes a first instant heating unit and a cooling module, and the cooling module includes a cold boiled water output end; after the water is heated by the first instant heating unit, it is output to the output water path through the cold boiled water output end of the cooling module, and a water outlet nozzle is arranged at the end of the output water path;

[0009] It also includes a return cold water path, and the return cold water path includes a second water pump and a first one-way valve. The start end of the return cold water path is connected to the output end of the cool boiled water of the cooling module, which is located between the output end of the cool boiled water and the output water path, and the end of the return cold water path is connected to the pure water tank; the liquid flowing through the first one-way valve flows towards the pure water tank.

[0010] The first instant heating unit has a fast heating function and is used to heat the water provided by the pure water tank into boiling water; the cooling module has a fast cooling function and is used to cool the boiling water into cool boiled water. Whether the first instant heating unit is turned on or not, water can flow through it normally.

[0011] The partial water path where the cooling module and the first instant heating unit are located cooperate with the return cold water path to form a circulation.

[0012] When the water path discharges water normally, the first instant heating unit is turned on and the second water pump is turned off; when the cooling module overheats, the first instant heating unit is turned off and the first water pump is turned on. At this time, the cool water in the pure water tank continuously passes through the cooling module to quickly cool the cooling module. When the temperature of the cooling module drops, the first instant heating unit is turned on again and the second water pump is turned off to restore the normal water discharge of the water path.

[0013] Finally, the problem of overheating of the cooling module can be solved through the return cold water path, the cooling function of the cooling module can be restored, and compared with the prior art, the transformation cost is relatively low.

[0014] As a further optimization of the above solution, the first instant heating unit includes an input end and an output end; the cooling module includes a housing; a cool water path and a boiling water path are arranged in the housing, and the cool water path and the boiling water path are in contact with each other but not connected.

[0015] The two ends of the cool water path are respectively a pure water input end and a pure water output end. The pure water input end is communicated with the pure water tank, and the pure water output end is communicated with the input end of the first instant heating unit.

[0016] The two ends of the boiling water path are respectively a boiling water input end and the output end of the cool boiled water, and the boiling water input end is communicated with the output end of the first instant heating unit.

[0017] The water in the pure water tank is normal temperature water, which is input into the first instant heating unit through the cool water path, converted into boiling water, and then flows into the boiling water path; because the cool water path and the boiling water path are in contact with each other but not connected, the normal temperature water and the boiling water exchange heat, the boiling water gradually cools down to cool boiled water, and the normal temperature water uses the heat of the boiling water to increase the temperature. It can not only easily realize the cooling of the cool boiled water, but also recycle the energy and reduce the energy loss.

[0018] As a further optimization of the above solution, a second instant heating unit is also arranged on the output water path and is used to adjust the temperature of the cool boiled water.

[0019] The second instant heating unit can adjust the temperature of the final outlet water according to the user's needs.

[0020] As a further optimization of the above solution, a second one-way valve is also provided on the output water path, and the liquid passing through the second one-way valve flows towards the water outlet nozzle.

[0021] As a further optimization of the above solution, a first solenoid valve is provided on the output water path to serve as a switch for controlling the water output of the water outlet nozzle.

[0022] As a further optimization of the above solution, a regulating valve is also provided on the output water path.

[0023] The regulating valve is used to adjust the water flow rate towards the water outlet nozzle, making the water flow rate / velocity before and after the regulating valve inconsistent. Correspondingly, when the water pressure at the front end of the regulating valve increases. When the water pressure of the liquid in the closed space increases, the boiling point will be slightly increased; the first instant heating unit can easily heat pure water to boiling water at 100 degrees, but no boiling phenomenon and water vapor will be generated inside the water path.

[0024] As a further optimization of the above solution, it further includes a tap water tank, a third water pump, and a filtration module connected in sequence, and the filtration module is connected to the pure water tank.

[0025] As a further optimization of the above solution, it further includes a recycling water path, and a second solenoid valve and a third one-way valve are provided on the recycling water path; the filtration module includes a waste water outlet end; the waste water outlet end is communicated with the recycling water path, and the second solenoid valve is close to the waste water outlet end; the other end of the recycling water path is communicated with a waste water collection unit; the liquid passing through the third one-way valve flows towards the waste water collection unit.

[0026] As a further optimization of the above solution, the filtration module includes a PPC composite filter element and an RO membrane filter element;

[0027] The PPC composite filter element includes an input end and an output end, and the input end thereof is communicated with the first water pump; the RO membrane filter element includes an input end and two output ends, the input end thereof is communicated with the output end of the RO membrane filter element, one of the output ends is the waste water outlet end, and the other output end is communicated with the pure water tank.

[0028] The PPC composite filter element is a 2-in-1 filter element that combines a PP cotton filter element and an activated carbon filter element, and usually includes granular activated carbon and ultrafiltration membranes, etc., which can effectively remove residual chlorine, abnormal colors and odors, some heavy metals, and large particle impurities such as sediment in water. The aperture of the RO (Reverse Osmosis) membrane is extremely small, about 0.0001 microns, and can filter out impurities, colloids, heavy metal ions, organic matters, bacteria, and viruses in water.

[0029] The PPC composite filter element serves as the pre-stage filter, mainly responsible for removing large particulate matters, residual chlorine and some other chemical pollutants in water, reducing the filtration burden on the RO membrane filter element and extending its service life.

[0030] The RO membrane filter element serves as the core filtration layer, responsible for high-precision filtration, removing more minute pollutants such as bacteria, viruses and heavy metals in water, and providing high-quality purified water.

[0031] As a further optimization of the above solution, the tap water tank includes a tap water area and a waste water area. The tap water area is communicated with the third water pump, and the waste water area is the waste water collection unit.

[0032] The beneficial effects are as follows:

[0033] The utility model provides a cooled boiled water pipeline with front-end reflux. A cold water return pipeline is connected after the cooled boiled water output end of the cooling module. A second water pump and a one-way valve are arranged on the cold water return pipeline; when the cooling module overheats and the cooling function fails, the first instant heating unit is closed and the second water pump is opened to form a cooling water pipeline to quickly cool down the cooling module itself until the cooling function is restored, then the second water pump is closed and the first instant heating unit is reopened, effectively solving the problems existing in the prior art, and the transformation and upgrading cost of the existing water purifiers, water dispensers, etc. is low. Description of the Drawings

[0034] Figure 1 It is a schematic connection diagram of the water pipeline provided by the embodiment of the utility model;

[0035] Reference Signs:

[0036] 1. Tap water tank; 1-1. Tap water area; 1-2. Waste water area;

[0037] 2. Third water pump;

[0038] 3. Filtration module; 3-1. PPC composite filter element; 3-2. RO membrane filter element; 3-3. Waste water outlet end;

[0039] 4. Recovery water pipeline; 4-1. Second solenoid valve; 4-2. Third one-way valve;

[0040] 5. Pure water tank;

[0041] 6. First water pump;

[0042] 7. Cooling module; 7-1. Housing; 7-2. Pure water input end; 7-3. Pure water output end; 7-4. Boiling water input end; 7-5. Cooled boiled water output end;

[0043] 8. First instant heating unit;

[0044] 9. Return cooling water path; 9-1. Second water pump; 9-2. First one-way valve;

[0045] 10. Output water path; 10-1. Second one-way valve; 10-2. Second instant heating unit; 10-3. Regulating valve; 10-4. First solenoid valve; 10-5. Water outlet nozzle. Detailed implementation manners

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] As Figure 1 shown, this embodiment provides a cooled boiled water path with front-end reflux, including a tap water tank 1, a third water pump 2, a filtration module 3, a pure water tank 5, and a cooled boiled water module connected in sequence; in this embodiment, the third water pump 2 is a self-priming pump.

[0048] In this embodiment, the tap water tank 1 includes a tap water area 1-1 and a waste water area 1-2, and the tap water area 1-1 is communicated with the third water pump 2.

[0049] In this embodiment, the filtration module 3 includes a PPC composite filter element 3-1 and an RO membrane filter element 3-2;

[0050] The PPC composite filter element 3-1 includes an input end and an output end, and the input end thereof is communicated with the first water pump 6; the RO membrane filter element 3-2 includes an input end and two output ends, the input end thereof is communicated with the output end of the RO membrane filter element 3-2, one of the output ends is a waste water outlet end 3-3, and the other output end is communicated with the pure water tank 5.

[0051] The PPC composite filter element 3-1 is a 2-in-1 filter element that combines a PP cotton filter element and an activated carbon filter element, and usually includes granular activated carbon and ultrafiltration membranes, etc., which can effectively remove residual chlorine, different colors and odors, some heavy metals, and large particle impurities such as sediment in water. The pore diameter of the RO (Reverse Osmosis) membrane is extremely small, about 0.0001 microns, and can filter out impurities, colloids, heavy metal ions, organic matters, bacteria, and viruses in water.

[0052] The PPC composite filter element 3-1, as the pre-stage filtration, is mainly responsible for removing large particle substances, residual chlorine, and other chemical pollutants in water, reducing the filtration burden of the RO membrane filter element 3-2, and extending its service life.

[0053] The RO membrane filter element 3-2 serves as the core filtration layer, responsible for high-precision filtration, removing more minute pollutants such as bacteria, viruses, and heavy metals in water, and providing high-quality purified water.

[0054] In this embodiment, it further includes a recovery water path 4, on which a second solenoid valve 4-1 and a third one-way valve 4-2 are provided; the waste water outlet end 3-3 is communicated with the recovery water path 4, and the second solenoid valve 4-1 is close to the waste water outlet end 3-3; the other end of the recovery water path 4 is communicated with the waste water collection unit; the liquid flowing through the third one-way valve 4-2 flows towards the waste water collection unit. In this embodiment, the waste water area 1-2 is the waste water collection unit.

[0055] The cooled boiled water module includes a cooling module 7 and a first instant heating unit 8;

[0056] The first instant heating unit 8 is used to heat the water provided by the pure water tank 5 into boiling water, and includes an input end and an output end;

[0057] The cooling module 7 cools the boiling water into cooled boiled water; specifically, in this embodiment, the cooling module 7 includes a housing 7-1; inside the housing 7-1, there are a cool water path and a boiling water path, and the cool water path and the boiling water path are in contact with each other but not communicated;

[0058] The two ends of the cool water path are respectively a pure water input end 7-2 and a pure water output end 7-3, the pure water input end 7-2 is communicated with the pure water tank 5, and the pure water output end 7-3 is communicated with the input end of the first instant heating unit 8; in this embodiment, a third water pump 2 is also provided between the pure water tank 5 and the pure water input end 7-2.

[0059] The two ends of the boiling water path are respectively a boiling water input end 7-4 and a cooled boiled water output end 7-5, and the boiling water input end 7-4 is communicated with the output end of the first instant heating unit 8.

[0060] The water in the pure water tank 5 is normal temperature water, which is input into the first instant heating unit 8 through the cool water path, is converted into boiling water, and then flows into the boiling water path; since the cool water path and the boiling water path are in contact with each other but not communicated, the normal temperature water and the boiling water exchange heat, the boiling water gradually cools down to cooled boiled water, and the normal temperature water uses the heat of the boiling water to increase in temperature. It can not only easily achieve the cooling of cooled boiled water, but also recycle energy and reduce energy loss.

[0061] The cooled boiled water output end 7-5 is also communicated with the output water path 10 and the return cold water path 9, which is equivalent to that the output water path 10 and the return cold water path 9 are respectively two branches of the water path after the cooled boiled water output end 7-5;

[0062] Among them, a second water pump 9-1 and a first one-way valve 9-2 are successively provided on the return cold water path 9, and finally it is communicated with the pure water tank 5; the liquid flowing through the first one-way valve 9-2 flows towards the pure water tank 5.

[0063] On the output waterway 10, a second one-way valve 10-1, a second instant heating unit 10-2, a regulating valve 10-3, a first solenoid valve 10-4 and a water outlet nozzle 10-5 at the end are successively provided. The liquid passing through the second one-way valve 10-1 flows towards the water outlet nozzle 10-5.

[0064] The second instant heating unit 10-2 is used to adjust the temperature of cooled boiled water. The second instant heating unit 10-2 can adjust the temperature of the final output water according to the user's needs. The first solenoid valve 10-4 serves as a switch to control the water output of the water outlet nozzle 10-5. The regulating valve 10-3 is used to adjust the water flow rate towards the water outlet nozzle 10-5, making the water flow rate / velocity before and after the regulating valve 10-3 inconsistent. Correspondingly, when the water pressure at the front end of the regulating valve 10-3 increases. When the water pressure of the liquid in a closed space increases, the boiling point will be slightly increased; the first instant heating unit 8 can easily heat pure water to boiling water at 100 degrees, but no boiling phenomenon will occur and no water vapor will be generated inside the waterway. The first instant heating unit 8 has a fast heating function; the cooling module 7 has a fast cooling function. Whether the first instant heating unit 8 is turned on or not, water can normally pass through it;

[0065] The part of the waterway where the cooling module 7 and the first instant heating unit 8 are located cooperates with the return cold waterway 9 to form a circulation;

[0066] When the waterway outputs water normally, the first instant heating unit 8 is turned on and the second water pump 9-1 is turned off; when the cooling module 7 overheats, the first instant heating unit 8 is turned off and the first water pump 6 is turned on. At this time, the cold water in the pure water tank 5 continuously passes through the cooling module 7 to quickly cool the cooling module 7. When the temperature of the cooling module 7 drops, the first instant heating unit 8 is turned on again and the second water pump 9-1 is turned off to restore the normal water output of the waterway.

[0067] Finally, through the return cold waterway 9, the problem of overheating of the cooling module 7 can be solved, the cooling function of the cooling module 7 can be restored, and compared with the prior art, the transformation cost is relatively low.

[0068] According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model pertains can also make changes and modifications to the above embodiments. Therefore, the present 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 the present utility model. 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 utility model.

Claims

1. A boiled water circuit with front-end reflux, comprising a pure water tank, a first water pump, a boiled water module and a water outlet connected in sequence through pipelines; characterized in that: The boiled water module comprises a first instant heating unit and a cooling module, wherein the cooling module comprises a boiled water output end; after the water is heated by the first instant heating unit, the water is output to an output water path through the boiled water output end of the cooling module, and a water outlet is provided at the end of the output water path; It also includes a return cooling water circuit, which includes a second water pump and a first one-way valve. The start end of the return cooling water circuit is connected to the boiled water output end of the cooling module, located between the boiled water output end and the output water circuit, and the end of the return cooling water circuit is connected to a pure water tank; the liquid passing through the first one-way valve flows to the pure water tank.

2. A boiled water circuit with front-end reflux according to claim 1, characterized in that: The first instant heating unit includes an input end and an output end; the cooling module includes a shell; a cooling water path and a boiling water path are arranged in the shell, and the cooling water path and the boiling water path are in contact with each other but not connected; The two ends of the cooling water circuit are respectively a pure water input end and a pure water output end, the pure water input end is connected to the pure water tank, and the pure water output end is connected to the input end of the first instant heating unit; The two ends of the boiling water circuit are respectively a boiling water input end and a boiled water output end, and the boiling water input end is connected to the output end of the first instant heating unit.

3. The boiled water circuit with front-end reflux according to claim 1, characterized in that: The output waterway is also provided with a regulating valve.

4. The boiled water circuit with front-end reflux according to claim 1, characterized in that: The output water channel is also provided with a second instant heating unit for adjusting the temperature of the boiled water.

5. The boiled water circuit with front-end reflux according to claim 1, characterized in that: The output water path is also provided with a second one-way valve, and the liquid passing through the second one-way valve flows toward the water outlet.

6. The boiled water circuit with front-end reflux according to claim 1, characterized in that: The output water path is provided with a first solenoid valve, which serves as a switch for controlling the water outflow from the water outlet.

7. The boiled water circuit with front-end reflux according to claim 1, characterized in that: It also includes a tap water tank, a third water pump, and a filter module that are connected in sequence, and the filter module is connected to the pure water tank.

8. The boiled water circuit with front-end reflux according to claim 7, characterized in that: It also includes a recovery water circuit, on which a second solenoid valve and a third one-way valve are provided; the filtration module includes a wastewater outlet; the wastewater outlet is connected to the recovery water circuit, and the second solenoid valve is close to the wastewater outlet; the other end of the recovery water circuit is connected to a wastewater collection unit; the liquid passing through the third one-way valve flows to the wastewater collection unit.

9. The boiled water circuit with front-end reflux according to claim 8, characterized in that: The filtration module includes a PPC composite filter element and an RO membrane filter element; The PPC composite filter element includes an input end and an output end, wherein the input end is connected to the first water pump; the RO membrane filter element includes an input end and two output ends, wherein the input end is connected to the output end of the RO membrane filter element, wherein one output end is the wastewater outlet end, and the other output end is connected to the pure water tank.

10. The boiled water circuit with front-end reflux according to claim 8, characterized in that: The tap water tank includes a tap water area and a waste water area. The tap water area is connected to the third water pump, and the waste water area is the waste water collecting unit.

Images