Waterway system capable of refluxing, heating and sterilizing and water purifying and drinking machine

Abstract

The utility model provides a waterway system capable of refluxing, heating and sterilizing and a water purifying and drinking machine. The waterway system capable of refluxing, heating and sterilizing comprises a water pump, a heat exchange module, a heating body and a regulating valve device, and is provided with a first water inlet, a second water inlet, a first water outlet and a second water outlet, the first water path sequentially communicates with the water pump, the normal-temperature water flow channel, the heating body and the first water inlet; the water inlet end of the second water path is connected to the first water path between the heating body and the first water inlet and sequentially communicates with the hot water flow channel and the second water inlet; the water inlet end of the third waterway is connected to the second water outlet, and the water outlet end is connected to the water inlet end of the water pump; the first water outlet can be controlled to be selectively communicated with the first water inlet or the second water inlet through the regulating valve device so as to provide boiled water or warm boiled water for a user; or when the first water outlet is closed, the second water outlet is controlled to be communicated with the second water inlet, so that internal circulating hot water flow can be formed when the water pump operates, and the internal waterway is killed.

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, specifically to a water system and water purifier with recirculation heating and sterilization capability. Background Technology

[0002] Water purifiers not only purify water but also heat it, meeting diverse drinking water needs and thus becoming increasingly popular. Currently, the water system of water purifiers, such as the reflux circulation, heat preservation, and sterilization water device disclosed in patent CN215016152U, includes a water tank assembly, a rapid heating water boiling assembly, and a heat exchanger. The rapid heating water boiling assembly has an inlet and an outlet. The heat exchanger has a first heat exchange channel and a second heat exchange channel for mutual heat exchange. The first heat exchange channel has a low-temperature water inlet and a first heat exchange outlet, and the second heat exchange channel has a high-temperature water inlet and a second heat exchange outlet. The first heat exchange outlet is connected to the inlet of the rapid heating water boiling assembly via a first inlet pipe, the high-temperature water inlet is connected to the outlet of the rapid heating water boiling assembly, and the second heat exchange outlet is connected to the inlet of the water tank assembly. The lower part of the water tank assembly has a drain end, which is connected to the first inlet pipe via a return pipe. A one-way valve and a circulating water pump are sequentially installed on the return pipe along the water path. Its internal water system cannot be effectively cleaned, and when left unused for a long time, bacteria can grow in the internal water system, affecting the health of the water used.

[0003] In view of this, the applicant hereby submits this application after studying the existing technology. Utility Model Content

[0004] This invention provides a water system and water purifier with recirculation heating and sterilization capability, aiming to improve at least one of the above-mentioned technical problems.

[0005] To solve the above-mentioned technical problems, this utility model provides a water system with recirculation heating and sterilization capability, comprising:

[0006] The water pump has an inlet end connected to an external pipeline for water intake;

[0007] The heat exchange module is equipped with a normal temperature water flow channel and a hot water flow channel for heat exchange;

[0008] A heating element used to heat the flowing water;

[0009] The regulating valve device is provided with a first inlet, a second inlet, a first outlet, and a second outlet;

[0010] The first water channel is sequentially connected to the water pump, the ambient temperature water channel, the heating element, and the first water inlet;

[0011] The second water passage has its inlet end connected to the first water passage between the heating element and the first water inlet, and is sequentially connected to the hot water flow channel and the second water inlet;

[0012] The third water passage has its inlet end connected to the second outlet end and its outlet end connected to the inlet end of the water pump.

[0013] The regulating valve device can control the first outlet to connect to either the first inlet or the second inlet to provide hot or warm water to the user; or when the first outlet is closed, it controls the second outlet to connect to the second inlet so that the water pump can form an internal circulating hot water flow when it is running.

[0014] As a further optimization, a first one-way valve is provided between the outlet end of the water pump and the inlet end of the ambient temperature water flow channel.

[0015] As a further optimization, the third water line is equipped with a first solenoid valve, which is a one-inlet, two-outlet valve. Its inlet end is connected to the second outlet, one outlet end is connected to the inlet end of the water pump, and the other outlet end is connected to the drain pipe to discharge the circulated hot water.

[0016] As a further optimization, the regulating valve device includes a first intelligent regulating valve, which is a two-inlet, two-outlet valve.

[0017] As a further optimization, the regulating valve device includes a second intelligent regulating valve and a second solenoid valve. The second intelligent regulating valve is a two-inlet-one-outlet valve, and the second solenoid valve is a one-inlet-two-outlet valve. The outlet end of the second intelligent regulating valve is connected to the inlet end of the second solenoid valve. The first inlet and the second inlet are located on the second intelligent regulating valve, and the first outlet and the second outlet are located on the second solenoid valve.

[0018] As a further optimization, the second water path is provided with a second one-way valve upstream of the inlet end of the hot water flow channel.

[0019] As a further optimization, the water inlet and water outlet of the heating element are respectively equipped with a first temperature sensor and a second temperature sensor.

[0020] As a further optimization, a third temperature sensor is provided at the first water outlet.

[0021] This application also provides a water purifier, including a water purification system and a water system capable of recirculation heating and sterilization as described above. The water purification system includes an inlet water path, a pure water path, and a wastewater path. The inlet end of the inlet water path is connected to a water supply device to supply water. A booster pump, a first-stage filter element, and a second-stage filter element are sequentially arranged on the inlet water path. The second-stage filter element is used to filter the inlet water to filter out pure water and wastewater. Its wastewater outlet end is connected to the inlet end of the wastewater path to discharge wastewater. The pure water outlet end is connected to the inlet end of the pure water path. The outlet end of the pure water path is connected to the inlet end of the water pump.

[0022] As a further optimization, a water quality sensor, a diversion valve, and a drain solenoid valve are sequentially installed on the pure water circuit. The diversion valve is connected to a pure water branch, and the outlet of the pure water branch is connected to a pure water tank for storing pure water for later use. The drain solenoid valve is used to control the flow rate of pure water to the water pump.

[0023] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0024] This application discloses a recirculating heating and sterilization water system. A regulating valve device controls the connection of the first outlet to either the first or second inlet, providing hot or warm water to the user. Alternatively, when the first outlet is closed, the second outlet is connected to the second inlet, allowing the water pump to operate. This enables water to recirculate through the first, second, and third water paths, while the heating element heats the water, creating an internal circulating hot water flow. This high-temperature sterilization effectively cleans the internal water system. Furthermore, the timed recirculation prevents water from being dispensed directly from the heating element after prolonged periods of inactivity, thus ensuring adequate temperature and sterilization. Additionally, water systems with heat exchange modules experience temperature differences between hot and cold states, resulting in a long temperature rise time of over 23 seconds for the cold water output. Timed recirculation effectively reduces this temperature rise time, improving the user experience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a water circuit diagram of one embodiment of a water purifier according to this utility model;

[0027] Figure 2 This is a water circuit diagram of one embodiment of a water circuit system for recirculation heating and sterilization according to this utility model;

[0028] Figure 3 This is a water circuit diagram of another embodiment of the water circuit system for recirculation heating and sterilization according to this utility model;

[0029] The diagram is labeled as follows: 1-Water pump; 2-Heat exchange module; 3-Heating element; 31-First temperature sensor; 32-Second temperature sensor; 41-First inlet; 42-Second inlet; 43-First outlet; 44-Second outlet; 45-First intelligent regulating valve; 46-Second intelligent regulating valve; 47-Second solenoid valve; 48-Third temperature sensor; 5-First water path; 51-First check valve; 6-Second water path; 61-Second check valve; 7-Third water path; 71-First solenoid valve; 8-Inlet water path; 81-Booster pump; 82-First stage filter element; 83-Second stage filter element; 84-Water tank; 9-Pure water path; 91-Water quality sensor; 92-Diverter valve; 93-Discharge solenoid valve; 94-Pure water branch; 95-Pure water tank; 10-Wastewater path; 101-Wastewater solenoid valve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] Example

[0032] Depend on Figure 1 , Figure 2 and Figure 3As shown, this utility model embodiment provides a water system with recirculation heating and sterilization capabilities, including: a water pump 1, a heat exchange module 2, a heating element 3, a regulating valve device, a first water path 5, a second water path 6, and a third water path 7. The water pump 1's inlet is connected to an external pipeline for water intake; the heat exchange module 2 has a normal temperature water channel and a hot water channel for heat exchange, cooling the hot water flow in the hot water channel with the normal temperature water flow in the normal temperature water channel to obtain boiled water at a preset temperature for user consumption; the heating element 3 heats the passing water flow; the regulating valve device has a first inlet 41, a second inlet 42, a first outlet 43, and a second outlet 44; the first water path 5 sequentially connects the water pump 1, the normal temperature water channel, the heating element 3, and the first inlet 41, wherein a first one-way valve 51 can be installed between the outlet of the water pump 1 and the inlet of the normal temperature water channel for... To prevent hot water backflow, the inlet of the second water path 6 is connected to the first water path 5 between the heating element 3 and the first inlet 41, and sequentially connects to the hot water flow channel and the second inlet 42, so that the water heated by the heating element 3 can be diverted into the second water path 5 and enter the hot water flow channel for heat exchange and cooling to obtain warm water; the inlet of the third water path 7 is connected to the second outlet 44, and the outlet is connected to the inlet of the water pump 1; wherein, the regulating valve device can control the first outlet 43 to connect to either the first inlet 41 or the second inlet 42; or when the first outlet 43 is closed, control the second outlet 44 to connect to the second inlet 42.

[0033] In this embodiment, when the first outlet 43 is connected to the first inlet 41, the water pumped in by the pump 1 enters the ambient temperature water channel along the first water path 5, is heated by the heating element 3, and then flows out from the first outlet 43 to provide hot water to the user. When the first outlet 43 is connected to the second inlet 42, the water pumped in by the pump 1 enters the ambient temperature water channel of the heat exchange module 2 along the first water path 5, is heated by the heating element 3, and then enters the hot water channel of the heat exchange module 2 along the second water path 6. After exchanging heat with the ambient temperature water in the ambient temperature water channel and cooling down, it flows out from the first outlet 43 to provide warm water at a preset temperature to the user. When the first outlet 43 is closed and the second outlet 44 is connected to the second inlet 42, the pump 1 operates, and the water in the water path begins to flow back after being pumped in by the pump 1, and is heated by the heating element 3, thereby forming a circulating water flow inside the water path, thus achieving the effect of sterilizing the water path.

[0034] In addition, a first solenoid valve 71 can be installed on the third water circuit 7. The first solenoid valve 71 is a valve with one inlet and two outlets. Its inlet end is connected to the second outlet 44, one outlet end is connected to the inlet end of the water pump 1, and the other outlet end is connected to the drain pipe to discharge the circulated hot water. Thus, the internal water circuit can be cleaned at high temperature through multiple backflow discharges, thereby improving the cleaning effect.

[0035] Reference Figure 1 As shown, in one embodiment, the regulating valve device includes a first intelligent regulating valve 45, which is a two-inlet, two-outlet valve, and controls the water circuit connection through the first intelligent regulating valve.

[0036] Reference Figure 2 As shown, in another embodiment, the regulating valve device includes a second intelligent regulating valve 46 and a second solenoid valve 47. The second intelligent regulating valve 46 is a two-inlet-one-outlet valve, and the second solenoid valve 47 is a one-inlet-two-outlet valve. The outlet end of the second intelligent regulating valve 46 is connected to the inlet end of the second solenoid valve 47. The first inlet 41 and the second inlet 42 are provided on the second intelligent regulating valve 46, and the first outlet 43 and the second outlet 44 are provided on the second solenoid valve 47.

[0037] Furthermore, the second water passage 6 is equipped with a second one-way valve 61 upstream of the inlet end of the hot water flow channel to prevent warm water backflow.

[0038] Furthermore, the inlet and outlet ends of the heating element 3 are respectively equipped with a first temperature sensor 31 and a second temperature sensor 32 for detecting the water temperature at the inlet and outlet of the heating element 3.

[0039] Furthermore, a third temperature sensor 48 is installed at the first outlet 43 to detect the outlet water temperature.

[0040] Referring to Figure 1, this application also provides a water purifier, including a water purification system and a recirculating heating and sterilization water system as described above. The water purification system includes an inlet water path 8, a pure water path 9, and a wastewater path 10. The inlet end of the inlet water path 8 is connected to a water supply device to supply water. A booster pump 81, a first-stage filter element 82, and a second-stage filter element 83 are sequentially installed on the inlet water path 8. The first-stage filter element 82 can be a CF filter element for primary filtration of the inlet water. The second-stage filter element 83 can be an MRO filter element for secondary filtration of the inlet water to filter out pure water and wastewater. Its wastewater outlet end is connected to the inlet end of the wastewater path 10 to discharge wastewater. The pure water outlet end is connected to the inlet end of the pure water path 9. The outlet end of the pure water path 9 is connected to the inlet end of the water pump, thereby providing pure water to the recirculating heating and sterilization water system. The pure water circuit 9 can be equipped with a water quality sensor 91, a diversion valve 92, and a drain solenoid valve 93 in sequence. The drain solenoid valve 93 controls the flow rate of pure water to the water pump 1. The diversion valve 92 connects to the pure water branch circuit 94, and the outlet of the pure water branch circuit 94 connects to the pure water tank 95, thus allowing a separate pure water stream to be stored for backup. The pure water tank 95 can be equipped with a high-level sensor and a low-level sensor to control the water level. The wastewater circuit 10 can be equipped with a wastewater solenoid valve 101 to control the flow rate.

[0041] Additionally, the water supply device connected to the inlet end of the water inlet circuit 8 can be a water tank 84. The water tank 84 can contain a raw water chamber and a wastewater chamber. The raw water chamber is connected to the water inlet circuit 8 for water supply; the wastewater chamber is connected to the outlet end of the wastewater circuit 10 for temporary wastewater storage. A water level sensor can be installed in the water tank to remind the user to add water when the raw water level is too low and to clean the wastewater promptly when the wastewater level is too high.

[0042] It should be noted that in this application, the heat exchange module 2, heating element 3, intelligent regulating valve, solenoid valve, etc., all adopt existing devices, therefore, their specific structures are not described in detail here.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water system capable of reflux heating and sterilization, characterized in that, include: The water pump has an inlet end connected to an external pipeline for water intake; The heat exchange module is equipped with a normal temperature water flow channel and a hot water flow channel for heat exchange; A heating element used to heat the flowing water; The regulating valve device is provided with a first inlet, a second inlet, a first outlet, and a second outlet; The first water channel is sequentially connected to the water pump, the ambient temperature water channel, the heating element, and the first water inlet; The second water passage has its inlet end connected to the first water passage between the heating element and the first water inlet, and is sequentially connected to the hot water flow channel and the second water inlet; The third water passage has its inlet end connected to the second outlet end and its outlet end connected to the inlet end of the water pump. The regulating valve device can control the first outlet to connect to either the first inlet or the second inlet to provide hot or warm water to the user; or when the first outlet is closed, it controls the second outlet to connect to the second inlet so that the water pump can form an internal circulating hot water flow when it is running.

2. The water system with recirculation heating and sterilization capability according to claim 1, characterized in that... A first check valve is provided between the outlet end of the water pump and the inlet end of the ambient temperature water channel.

3. A water system capable of recirculation heating and sterilization according to claim 1, characterized in that... The third water line is equipped with a first solenoid valve, which is a valve with one inlet and two outlets. Its inlet end is connected to the second outlet, one outlet end is connected to the inlet end of the water pump, and the other outlet end is connected to the drain pipe to discharge the circulated hot water.

4. A water system capable of reflux heating and sterilization according to any one of claims 1 to 3, characterized in that... The regulating valve device includes a first intelligent regulating valve, which is a two-inlet, two-outlet valve.

5. A water system capable of reflux heating and sterilization according to any one of claims 1 to 3, characterized in that... The regulating valve device includes a second intelligent regulating valve and a second solenoid valve. The second intelligent regulating valve is a two-inlet-one-outlet valve, and the second solenoid valve is a one-inlet-two-outlet valve. The outlet end of the second intelligent regulating valve is connected to the inlet end of the second solenoid valve. The first inlet and the second inlet are located on the second intelligent regulating valve, and the first outlet and the second outlet are located on the second solenoid valve.

6. A water system capable of recirculation heating and sterilization according to claim 1, characterized in that... The second water passage is equipped with a second one-way valve upstream of the inlet end of the hot water flow channel.

7. A water system capable of recirculation heating and sterilization according to claim 1, characterized in that... The heating element is equipped with a first temperature sensor and a second temperature sensor at its inlet and outlet ends, respectively.

8. A water system capable of recirculation heating and sterilization according to claim 1, characterized in that... A third temperature sensor is installed at the first water outlet.

9. A water purifier, characterized in that... The system includes a water purification system and a water system capable of recirculation heating and sterilization as described in any one of claims 1-8. The water purification system includes an inlet water system, a pure water system, and a wastewater system. The inlet end of the inlet water system is connected to a water supply device for supplying water. A booster pump, a first-stage filter element, and a second-stage filter element are sequentially arranged on the inlet water system. The second-stage filter element is used to filter the inlet water to filter out pure water and wastewater. Its wastewater outlet end is connected to the inlet end of the wastewater system to discharge wastewater. The pure water outlet end is connected to the inlet end of the pure water system. The outlet end of the pure water system is connected to the inlet end of the water pump.

10. A water purifier according to claim 9, characterized in that... The pure water circuit is equipped with a water quality sensor, a diversion valve, and a drain solenoid valve in sequence. The diversion valve is connected to a pure water branch, and the outlet of the pure water branch is connected to a pure water tank for storing pure water for later use. The drain solenoid valve is used to control the flow rate of pure water to the water pump.

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