Water path structure of purifying and heating all-in-one machine

Abstract

The utility model discloses a water path structure of a purifying and heating all-in-one machine, the water path structure comprises a filter unit, a pure water tank and a hot tank, the filter unit comprises a filter element and a booster pump used for pressurizing water feeding of the filter element, and pure water filtered by the filter element can be supplemented into the pure water tank and the hot tank; the water path structure of the purifying and heating all-in-one machine further comprises an exhaust pipeline, the air inlet end of the exhaust pipeline is communicated with the pure water tank, the air outlet end of the exhaust pipeline is higher than the air inlet end and is communicated with an exhaust port of the purifying and heating all-in-one machine, and the hot tank is communicated with the exhaust pipeline through a steam exhaust pipeline. According to the water path structure of the heat purification all-in-one machine, high-temperature steam generated in the heat tank enters the exhaust pipeline to be cooled and condensed to form condensed water to flow back to the pure water tank, even if a small amount of steam is exhausted through the air outlet end of the exhaust pipeline, the part of steam is also exhausted after being cooled through the exhaust pipeline, the temperature of the steam during exhausting is greatly reduced, and the heat purification effect is improved. And potential safety hazards are reduced.

Description

Technical Field

[0001] This application relates to the field of water purifier technology, specifically to a water circuit structure for an integrated water purifier and heat purifier. Background Technology

[0002] Integrated water purifiers and heaters, providing both room temperature and hot water, are gaining popularity and becoming an indispensable household appliance. Common models on the market typically include a filter and a heating tank. Their working principle involves the filter directly outputting purified water from the tap water source, or heating the water in the heating tank before outputting it, thus providing either room temperature or hot water when connected to a tap.

[0003] Integrated water purifier and heating units mainly include countertop and under-sink models. Under-sink units are installed inside cabinets under the kitchen sink, requiring sufficient space and professional piping connections, including connecting the inlet to the household water supply and the outlet to the faucet above the sink. When the water in the heating tank boils or nearly boils, it produces a large amount of steam. To prevent this steam from escaping directly into the cabinet, the tank's vent is typically connected to the faucet via an exhaust pipe, allowing the steam to escape outside the cabinet. However, this design has some drawbacks. For example, when users fill their water tanks, their faces are usually directly in front of and above the faucet, making them susceptible to burns from the steam. Furthermore, for users wearing glasses, the condensation can fog up their glasses, obscuring their vision and affecting water dispensing. Utility Model Content

[0004] This application provides a water circuit structure for an integrated water purifier and heater to improve the technical problems of existing under-sink integrated water purifier and heater systems, which pose safety hazards and affect users' access to water due to the direct discharge of high-temperature steam through the faucet.

[0005] The technical solution adopted in this application is as follows:

[0006] A water circuit structure for an integrated water purifier and heat pump includes a filtration unit, a pure water tank, and a heating tank. The filtration unit includes a filter element and a booster pump for pressurizing water intake into the filter element. The pure water filtered by the filter element can replenish the pure water tank and the heating tank. The water circuit structure of the integrated water purifier and heat pump also includes an exhaust pipe. The air inlet of the exhaust pipe is connected to the pure water tank, and the air outlet of the exhaust pipe is higher than the air inlet and connected to the exhaust port of the integrated water purifier and heat pump. The heating tank is connected to the exhaust pipe through a steam discharge pipe.

[0007] In this technical solution, the pure water tank is equipped with an exhaust pipe, connecting the pure water tank to the outside environment. This allows the pure water tank to be filled to full capacity via the filter cartridge without creating pressure. The air inlet of the exhaust pipe is connected to the pure water tank, while the air outlet is higher than the air inlet and connects to the exhaust port of the integrated water purifier and heater. This design is suitable for under-sink integrated water purifiers and heaters, where the unit is located inside a cabinet below the sink. The air inlet of the exhaust pipe connects to the pure water tank inside the unit, and the air outlet is higher than the air inlet and connects to the faucet above the sink. Since the water in the pure water tank is at room temperature and the exhaust pipe is also at room temperature, the hot tank is connected to the exhaust pipe through the steam discharge pipe. The high-temperature steam generated in the hot tank enters the exhaust pipe and is cooled by the room temperature environment of the exhaust pipe, condensing into condensate and flowing back down to the pure water tank. Even if a small amount of steam does not condense and is discharged through the exhaust pipe at the faucet, this part of the steam is cooled by the exhaust pipe before being discharged, which greatly reduces the temperature at which it is discharged and reduces safety hazards.

[0008] The steam discharge pipeline is equipped with a pressure relief valve. The pressure relief valve is preset with a trigger pressure value for controlling its opening or closing. When the pressure value inside the hot tank is less than the trigger pressure value, the pressure relief valve is closed. When the pressure value inside the hot tank is not less than the trigger pressure value, the pressure relief valve is open.

[0009] In this technical solution, during the heating process of the hot tank, when a small amount of steam is produced, the pressure value inside the hot tank is less than the trigger pressure value. At this time, the pressure relief valve is closed, and the steam discharge pipeline is shut off, which has the function of heat preservation and pressure maintenance. As the amount of steam increases, the pressure inside the hot tank rises, which helps to improve the heating efficiency. When the pressure value inside the hot tank is greater than the trigger pressure value, the pressure relief valve opens to release the pressure of the hot tank.

[0010] The hot water tank is provided with a water inlet and a hot water outlet. The hot water tank can continue to receive water through the water inlet when it is full and push hot water out from the hot water outlet. The water inlet pressure value when the hot water tank continues to receive water when it is full is less than the trigger pressure value.

[0011] In this technical solution, after the hot tank is full of water, it can continue to be replenished, forming a state where room temperature water enters the water inlet and hot water is pushed out from the hot water outlet. The pushed-out hot water can be delivered to the faucet of the water purifier and heat pump for users to use. The room temperature water entering the hot tank makes up for the gap after the hot water is discharged, so that the hot tank is always full of water. Therefore, this solution, by replenishing the full-water heating tank and pushing the hot water out, has several advantages. First, compared to the existing method of pumping water from the heating tank, it saves the need for a dedicated pump, thus reducing the installation space required for such a pump in the integrated water purifier and heater unit, and contributing to its miniaturization and noise reduction. Second, as most of the hot water in the heating tank is gradually discharged through the hot water outlet under the action of pushing out the room-temperature water, the temperature inside the heating tank gradually decreases, turning from hot water to warm water. This ensures a large supply of both hot and warm water at temperatures above room temperature, improving the user experience. Third, because the heating tank is always kept full, it effectively prevents external air from entering, thereby reducing bacterial growth. In addition, during the process of room temperature water pushing hot water out, the inlet water pressure is less than the trigger pressure, and the outlet water pressure of the hot water tank is not greater than the inlet water pressure. Therefore, the outlet water pressure is also less than the trigger pressure. At this time, the pressure relief valve is closed, so that the hot water can only flow out through the hot water outlet and will not enter the exhaust pipe through the steam exhaust pipe.

[0012] The pure water tank is connected to the water inlet via a water supply pipeline, and a water supply pump is installed on the water supply pipeline.

[0013] In this technical solution, the pure water filtered by the filter element can be pre-stored in the pure water tank. The pure water in the pure water tank is then replenished into the hot water tank through the water replenishment pump and water replenishment pipeline. Compared with the method of producing water and replenishing the hot water tank at the same time through the filter element, the water pre-stored in the pure water tank can achieve a large flow rate to replenish the hot water tank, ensuring that a stable and large flow rate of hot water is pushed out at the hot water outlet, thereby improving the stability and flow rate of the hot water output.

[0014] The pure water outlet of the filter element is connected to the water inlet through a water supply pipeline, and the filter element replenishes water to the hot tank that is full of water under the pressure of the booster pump.

[0015] This technical solution provides a method for directly replenishing water to the hot tank through a filter element.

[0016] The hot water tank is equipped with a heating element for heating, which can heat the water as pure water is added to the hot water tank.

[0017] In this technical solution, during the process of adding water to the hot water tank and pushing out hot water, the heating element can be controlled to be in a heating state continuously, forming a working mode of heating while water is being dispensed, ensuring that warm water is dispensed throughout the entire water dispensing process.

[0018] The water inlet is located at the bottom of the hot water tank, and the hot water outlet is located at the top of the hot water tank. The hot water outlet is connected to the hot water outlet of the integrated water purifier and heat pump through a hot water discharge pipe, and a hot water outlet valve is provided on the hot water discharge pipe.

[0019] In this technical solution, when the hot water tank is replenished, room temperature water enters from the replenishment inlet at the bottom of the hot water tank, while hot water is pushed out from the hot water outlet at the top of the hot water tank. Since the density of room temperature water is greater than that of hot water, the hot water mainly concentrates in the upper part of the hot water tank, while the replenished room temperature water mainly concentrates in the lower part of the hot water tank. Therefore, this helps to slow down the mixing of hot water and room temperature water, ensuring that during the process of replenishing water from the pure water tank to the hot water tank, the water discharged from the hot water outlet is as much as possible hot water at a high temperature.

[0020] The pure water tank is connected to the ambient temperature water outlet of the integrated water purifier and heat pump via an ambient temperature water supply pipeline, and the ambient temperature water supply pipeline is equipped with a water pump; and / or, the pure water outlet of the filter element is connected to the ambient temperature water outlet of the integrated water purifier and heat pump via an ambient temperature water outlet pipeline, and the ambient temperature water outlet pipeline is equipped with an ambient temperature water outlet valve.

[0021] In this technical solution, the pure water tank directly discharges water to the ambient temperature water outlet of the integrated water purifier and heater via an ambient temperature water supply pipeline. Compared to the method where the filter cartridge produces water while simultaneously supplying it to the ambient temperature water outlet, the water pre-stored in the pure water tank can achieve a large flow rate, increasing the water output per unit time. The filter cartridge can also discharge water directly to the ambient temperature water outlet via the ambient temperature water outlet pipeline. Therefore, when the pure water tank and filter cartridge discharge water to the ambient temperature water outlet together, it helps to increase the water flow rate. Furthermore, while the pure water tank and filter cartridge are discharging water to the ambient temperature water outlet, the pure water tank is also replenishing water to the heating tank, forming three water paths discharging water simultaneously. When the water from these three paths mixes in the faucet of the integrated water purifier and heater, it achieves a super-large flow rate of warm water, significantly increasing the water flow rate.

[0022] The filter element replenishes water to the pure water tank through the water outlet pipe. The water outlet pipe is equipped with a water replenishment valve. The pure water tank is equipped with a water level detection device, which includes a low water level detection float and a high water level detection float that is higher than the low water level detection float.

[0023] In this technical solution, the water level in the pure water tank is detected by a water level detection device. A low water level detection float detects the low water level, and a high water level detection float detects the high water level. When a low water level is detected in the pure water tank, the control system can promptly make the filter element produce water and replenish the pure water tank until the high water level detection float detects the high water level.

[0024] The filter element is equipped with a reverse osmosis membrane, the inlet of the booster pump is connected to a raw water inlet valve, the pure water outlet of the filter element is connected to the inlet of the booster pump through a pure water return pipeline, and a check valve is provided on the pure water return pipeline.

[0025] In this technical solution, by setting up a pure water return pipeline, the returned pure water can be used to flush the reverse osmosis membrane, washing away the inorganic salts, organic pollutants, scale, etc. accumulated on the reverse osmosis membrane, improving the filtration effect of the reverse osmosis membrane, and also significantly reducing the increase in the TDS value of the pure water due to the infiltration of inorganic salts into the pure water end of the reverse osmosis membrane when the integrated water purifier and heat pump is shut down.

[0026] Due to the adoption of the above technical solution, the technical effect achieved by this application is as follows: the pure water tank is equipped with an exhaust pipe, connecting the pure water tank to the outside, so that the pure water tank can be filled with water through the filter element to a full state without pressure buildup. The air inlet of the exhaust pipe is connected to the pure water tank, and the air outlet of the exhaust pipe is higher than the air inlet and connected to the exhaust port of the integrated water purifier and heat pump, which is suitable for under-sink integrated water purifier and heat pump. The body of the integrated water purifier and heat pump is located in the cabinet under the sink. The air inlet of the exhaust pipe is connected to the pure water tank inside the body of the machine, and the air outlet of the exhaust pipe is higher than the air inlet and connected to the faucet above the sink. Since the water in the pure water tank is at room temperature and the exhaust pipe is also at room temperature, the hot tank is connected to the exhaust pipe via a steam discharge pipe. The high-temperature steam generated in the hot tank enters the exhaust pipe and is cooled by the room temperature environment of the exhaust pipe. When a small amount of steam enters, it can all be condensed into condensate and flow back to the pure water tank. When a large amount of steam enters, most of the steam condenses into condensate and flows back to the pure water tank. Only a small amount of steam is discharged through the exhaust pipe outlet, and this uncondensed steam is cooled before being discharged, which significantly reduces the temperature at the time of discharge and reduces safety hazards. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 The diagram shows the water circuit structure of the integrated water purifier and heater provided in the embodiments of this application.

[0029] List of components and reference numerals:

[0030] 10 Pure water tank, 11 Hot water tank, 111 Water inlet, 112 Hot water outlet, 113 Heating element, 12 Filter element, 13 Booster pump, 14 Exhaust pipe, 15 Steam exhaust pipe, 16 Raw water inlet valve, 17 Pure water return pipe, 18 Check valve, 19 Wastewater discharge pipe, 20 Wastewater valve, 21 Pressure relief valve, 22 Water inlet pipe, 23 Water inlet pump, 24 Hot water discharge pipe, 25 Hot water outlet, 26 Hot water outlet valve, 27 Normal temperature water supply pipe, 28 Normal temperature water outlet, 29 Water outlet pump, 30 Normal temperature water discharge pipe, 31 Normal temperature water outlet valve, 32 Water outlet pipe, 33 Water inlet valve, 34 Water level detection device. Detailed Implementation

[0031] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0035] In the embodiments of this application, a water circuit structure for an integrated water purifier and heat pump is provided, specifically providing... Figure 1The embodiments of the water circuit structure of the integrated water purifier and heat pump shown are illustrated below for ease of explanation and understanding. All descriptions provided in this application are based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is merely a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solutions provided in this application.

[0036] refer to Figure 1 As shown, the water circuit structure of the integrated water purifier and heat pump provided in this application includes a filtration unit, a pure water tank 10, and a heating tank 11. The filtration unit includes a filter element 12 and a booster pump 13 for pressurizing water into the filter element 12. The pure water filtered by the filter element 12 can be replenished into the pure water tank 10 and the heating tank 11. The water circuit structure of the integrated water purifier and heat pump also includes an exhaust pipe 14. The air inlet of the exhaust pipe 14 is connected to the pure water tank 10, and the air outlet of the exhaust pipe 14 is higher than the air inlet and connected to the exhaust port of the integrated water purifier and heat pump. The heating tank 11 is connected to the exhaust pipe 14 through a steam discharge pipe 15.

[0037] In a preferred embodiment, filter element 12 can be a reverse osmosis filter element or a composite filter element composed of a reverse osmosis membrane and other filter media to improve the filtration effect. The inlet of booster pump 13 is connected to a raw water inlet valve 16. The pure water outlet of filter element 12 can be connected to the inlet of booster pump 13 via a pure water return pipe 17. A check valve 18 is provided on the pure water return pipe 17. By setting up the pure water return pipe 17, after the integrated water purifier and heater stops discharging water, the returned pure water can be used to flush the reverse osmosis membrane, washing away accumulated inorganic salts, organic pollutants, scale, etc., thereby improving the filtration effect of the reverse osmosis membrane and significantly reducing the increase in TDS value of pure water due to inorganic salt permeation to the pure water end of the reverse osmosis membrane when the integrated water purifier and heater is stopped. Filter element 12 can also discharge wastewater through wastewater discharge pipe 19, which is equipped with a wastewater valve 20. When the raw water inlet valve 16 is opened, tap water can enter the water circuit structure of the integrated water purifier and heat pump. Under the pressure of the booster pump 13, it enters the filter element 12 and is filtered into pure water. When the wastewater valve 20 is opened, wastewater can be discharged. The pure water produced by the filter element 12 can enter the pure water tank 10 for storage through the water replenishment pipe 22, or it can enter the heating tank 11 for heating.

[0038] In this technical solution, the pure water tank 10 is equipped with an exhaust pipe 14, which connects the pure water tank 10 to the outside environment. This allows the pure water tank 10 to be filled with water through the filter element 12 without creating pressure. The air inlet of the exhaust pipe 14 is connected to the pure water tank 10, and the air outlet of the exhaust pipe 14 is higher than the air inlet and connects to the exhaust port of the integrated water purifier and heat pump. This water circuit structure is compatible with under-sink integrated water purifiers and heat pumps. The body of an under-sink integrated water purifier and heat pump is generally located in a cabinet under the sink. The air inlet of the exhaust pipe 14 is connected to the pure water tank 10 inside the machine, and the air outlet of the exhaust pipe 14 is higher than the air inlet and connects to the faucet above the sink. Since the water in the pure water tank 10 is at room temperature and the water in the exhaust pipe 14 is at room temperature, the hot tank 11 is connected to the exhaust pipe 14 through the steam exhaust pipe 15. The high-temperature steam generated in the hot tank 11 enters the exhaust pipe 14 and is cooled by the room temperature environment of the exhaust pipe 14, condenses into condensate, and flows back down to the pure water tank 10. Even if a small amount of steam does not condense and is discharged through the exhaust pipe 14 at the faucet, this part is also discharged after being cooled by the exhaust pipe 14, which greatly reduces the temperature at the time of discharge and reduces safety hazards.

[0039] In a preferred embodiment of this application, a pressure relief valve 21 is provided on the steam discharge pipe 15. The pressure relief valve 21 is preset with a trigger pressure value for controlling its opening or closing. When the pressure value inside the hot tank 11 is less than the trigger pressure value, the pressure relief valve 21 is closed; when the pressure value inside the hot tank 11 is not less than the trigger pressure value, the pressure relief valve 21 is open. Those skilled in the art will understand that during the heating process of the hot tank 11, the room temperature water gradually heats up. In the initial heating stage, the room temperature water becomes warm water, producing a small amount of steam. The pressure increase inside the hot tank 11 is small, and when the pressure value is less than the trigger pressure value, the pressure relief valve 21 remains closed, closing the steam discharge pipe 15 and sealing the hot tank 11, thus providing heat preservation and pressure maintenance. As the amount of steam increases, the pressure inside the hot tank 11 rises, which helps to improve heating efficiency. When the pressure value inside the hot tank 11 is greater than the trigger pressure value, the pressure relief valve 21 opens, and steam flows through the steam discharge pipe 15 towards the exhaust pipe 14, thereby relieving pressure in the hot tank 11.

[0040] Furthermore, the heating tank 11 is provided with a water inlet 111 and a hot water outlet 112. The heating tank 11 can continue to receive water through the water inlet 111 when it is full, pushing hot water out of the hot water outlet 112. The inlet pressure when the heating tank 11 continues to receive water when it is full is less than the trigger pressure value. In this technical solution, after heating the water in the heating tank 11 when it is full, it can continue to receive water, forming a state where room temperature water enters through the water inlet 111 and hot water is pushed out from the hot water outlet 112. The pushed-out hot water can be delivered to the faucet of the integrated water purifier and heater for user use, while the room temperature water entering the heating tank 11 compensates for the gap left by the hot water discharge, keeping the heating tank 11 always full. Therefore, in this solution, by replenishing water to the full-water heating tank 11 and pushing the hot water out, on the one hand, compared with the existing method of drawing water from the heating tank using a water pump, the water pump used for drawing water from the heating tank 11 is saved, thus saving the installation space reserved for the water pump in the integrated water purifier and heating machine, which helps to miniaturize the integrated water purifier and heating machine and reduce vibration and noise; on the other hand, under the action of pushing out the room-temperature water, as most of the hot water in the heating tank 11 is gradually discharged from the hot water outlet 112, the temperature inside the heating tank 11 gradually decreases, slowly changing from hot water to warm water, so that the initial output of the water outlet of the heating tank 11 is hot water, and the subsequent output is warm water, ensuring a large supply of hot water and warm water at a temperature higher than room temperature, improving the user experience; furthermore, since the heating tank 11 is always kept full of water, it effectively prevents external air from entering and accumulating inside the heating tank 11, thereby reducing bacterial growth. Furthermore, during the process of hot water being pushed out by room temperature water, the inlet pressure is lower than the trigger pressure, and the outlet pressure of the hot water tank 11 is not greater than the inlet pressure. Therefore, the outlet pressure is also lower than the trigger pressure. At this time, the pressure relief valve 21 is closed, allowing hot water to flow out only through the hot water outlet 112 and not through the steam exhaust pipe 15 into the exhaust pipe 14. Specifically, the inlet pressure can be controlled by a pump. For example, a water pump can be used to replenish water from the pure water tank 10 into the hot water tank 11. By adjusting the pump's operating power and duty cycle, the inlet pressure can be adjusted to be lower than the trigger pressure.

[0041] Regarding the method of replenishing the pure water filtered by the filter element 12 into the hot water tank 11, in a preferred embodiment, the pure water tank 10 is connected to the water inlet 111 via a water replenishment pipe 22, and a water replenishment pump 23 is provided on the water replenishment pipe 22. In this technical solution, the pure water filtered by the filter element 12 can be pre-stored in the pure water tank 10, and the pure water in the pure water tank 10 is then replenished into the hot water tank 11 via the water replenishment pump 23 and the water replenishment pipe 22. Compared with the method of replenishing the hot water tank 11 while producing water through the filter element 12, the water pre-stored in the pure water tank 10 can achieve a large flow rate of water replenishment to the hot water tank 11, ensuring that a stable and large flow rate of hot water is pushed out at the hot water outlet 112, thereby improving the stability and flow rate of the hot water output.

[0042] In other embodiments not shown in the accompanying drawings, the pure water outlet of the filter element can be connected to the water inlet via a water supply pipe, and the filter element replenishes water to the full-water tank under the pressure of the booster pump. This technical solution provides a method for directly replenishing water to the hot tank via a filter element; under the pressure of the booster pump, the filter element simultaneously produces water and replenishes water to the hot tank.

[0043] In a preferred embodiment, the heating tank 11 is equipped with a heating element 113 for heating, which can heat water during the process of adding pure water into the heating tank 11. In this technical solution, during the process of adding water to the heating tank 11 and pushing out hot water, the heating element 113 can be controlled to be in a heating state continuously, forming a working mode of heating while water is being dispensed, ensuring that warm water is dispensed throughout the entire water dispensing process. For example, when adding water to the heating tank 11 using the pure water tank 10, the heating element 113 in the heating tank 11 heats up simultaneously as the water pump 23 draws water from the pure water tank 10 into the heating tank 11. Although the water temperature gradually decreases as the water dispensing volume of the heating tank 11 increases, the heating element 113 compensates for the temperature drop, making the cooling and heating processes synchronized, thus extending the time for dispensing warm water.

[0044] In a preferred embodiment, the water inlet 111 is located at the bottom of the heating tank 11, and the hot water outlet 112 is located at the top of the heating tank 11. The hot water outlet 112 is connected to the hot water outlet 25 of the integrated water purifier and heat pump unit via a hot water discharge pipe 24, and a hot water outlet valve 26 is provided on the hot water discharge pipe 24. In this technical solution, when the heating tank 11 is replenished with water, room temperature water enters from the water inlet 111 at the bottom of the heating tank 11, and hot water is pushed out from the hot water outlet 112 at the top of the heating tank 11. Since the density of room temperature water is greater than that of hot water, the hot water mainly concentrates in the upper part of the heating tank 11, while the replenished room temperature water mainly concentrates in the lower part of the heating tank 11. Therefore, it helps to slow down the mixing of hot water and room temperature water, ensuring that during the process of replenishing water from the pure water tank 10 to the heating tank 11, the water discharged from the hot water outlet 112 is as much hot water as possible.

[0045] In a preferred embodiment of this application, the pure water tank 10 is connected to the ambient temperature water outlet 28 of the integrated water purifier and heat pump via an ambient temperature water supply pipeline 27, and a water pump 29 is provided on the ambient temperature water supply pipeline 27. In this technical solution, the pure water tank 10 directly supplies water to the ambient temperature water outlet 28 of the integrated water purifier and heat pump via the ambient temperature water supply pipeline 27. Compared with the water supply method of the filter element 12 producing water while simultaneously delivering the produced water to the ambient temperature water outlet 28, the water pre-stored in the pure water tank 10 can achieve a large flow rate supply, increasing the water output per unit time.

[0046] In another preferred embodiment of this application, the pure water outlet of the filter element 12 is connected to the ambient temperature water outlet 28 of the integrated water purifier and heat pump via an ambient temperature water outlet pipe 30, and an ambient temperature water outlet valve 31 is provided on the ambient temperature water outlet pipe 30. In this technical solution, the pure water produced by the filter element 12 under the pressure of the booster pump 13 can not only be added to the pure water tank 10 and the heating tank 11, but can also be directly delivered to the ambient temperature water outlet 28. The ambient temperature water outlet 28 can be connected to a faucet, so that the pure water produced by the filter element 12 can be directly provided to the user.

[0047] When the two schemes are combined, the pure water tank 10 is connected to the ambient temperature water outlet 28 of the integrated water purifier and heat pump via the ambient temperature water supply pipe 27, and the pure water outlet of the filter element 12 is connected to the ambient temperature water outlet 28 of the integrated water purifier and heat pump via the ambient temperature water outlet pipe 30. This can control the pure water tank 10 and the filter element 12 to simultaneously discharge water to the ambient temperature water outlet 28, which helps to increase the water flow rate and the water output per unit time, and achieve a large flow of ambient temperature water supply. In addition, while the pure water tank 10 and the filter element 12 are discharging water into the ambient temperature water outlet 28, the water replenishment pump 23 can also draw water from the pure water tank 10 into the hot water tank 11, causing hot water to be pushed out from the hot water tank 11. This forms two water paths, the filter element 12 and the pure water tank 10, discharging ambient temperature water into the ambient temperature water outlet 28, and one water path, the hot water tank 11, discharging hot water. When the ambient temperature water from the two water paths mixes with the hot water from the one water path in the faucet, a super-large flow rate of warm water is achieved, greatly increasing the water flow rate.

[0048] In a preferred embodiment of this application, the filter element 12 replenishes water to the pure water tank 10 through the water outlet pipe 32. The water outlet pipe 32 is equipped with a water replenishment valve 33. The pure water tank 10 is equipped with a water level detection device 34, which includes a low-water-level detection float and a high-water-level detection float (higher than the low-water-level detection float). The water replenishment valve 33 controls the opening and closing of the water outlet pipe 32. When the water replenishment valve 33 is open, the pure water produced by the filter element 12 can be replenished into the pure water tank 10 via the water outlet pipe 32. In this technical solution, the water level in the pure water tank 10 is detected by the water level detection device 34. The low-water-level detection float detects the low water level, and the high-water-level detection float detects the high water level. When a low water level is detected in the pure water tank 10, the system can control the filter element 12 to produce water and replenish the pure water tank 10 in a timely manner until the high-water-level detection float detects the high water level. Specifically, since the pure water tank 10 is connected to the exhaust pipe 14, which meets the condition of replenishing water to full, the high water level can also be set to the full water level.

[0049] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0050] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0051] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A water circuit structure for an integrated water purifier and heater, characterized in that, It includes a filtration unit, a pure water tank, and a hot water tank. The filtration unit includes a filter element and a booster pump for pressurizing water into the filter element. The pure water filtered by the filter element can be replenished into the pure water tank and the hot water tank. The water circuit structure of the integrated water purifier and heat pump also includes an exhaust pipe. The air inlet of the exhaust pipe is connected to the pure water tank, and the air outlet of the exhaust pipe is higher than the air inlet and connected to the exhaust port of the integrated water purifier and heat pump. The hot tank is connected to the exhaust pipe through a steam discharge pipe.

2. The water circuit structure of the integrated water purifier and heat pump according to claim 1, characterized in that, The steam discharge pipeline is equipped with a pressure relief valve. The pressure relief valve is preset with a trigger pressure value for controlling its opening or closing. When the pressure value inside the hot tank is less than the trigger pressure value, the pressure relief valve is closed. When the pressure value inside the hot tank is not less than the trigger pressure value, the pressure relief valve is open.

3. The water circuit structure of the integrated water purifier and heat pump according to claim 2, characterized in that, The hot water tank is provided with a water inlet and a hot water outlet. The hot water tank can continue to receive water through the water inlet when it is full and push hot water out from the hot water outlet. The water inlet pressure value when the hot water tank continues to receive water when it is full is less than the trigger pressure value.

4. The water circuit structure of the integrated water purifier and heat pump according to claim 3, characterized in that, The pure water tank is connected to the water inlet via a water supply pipeline, and a water supply pump is installed on the water supply pipeline.

5. The water circuit structure of the integrated water purifier and heat pump according to claim 3, characterized in that, The pure water outlet of the filter element is connected to the water inlet through a water supply pipeline, and the filter element replenishes water to the hot tank that is full of water under the pressure of the booster pump.

6. The water circuit structure of the integrated water purifier and heat pump according to claim 3, characterized in that, The hot water tank is equipped with a heating element for heating, which can heat the water as pure water is added to the hot water tank.

7. The water circuit structure of the integrated water purifier and heat pump according to claim 3, characterized in that, The water inlet is located at the bottom of the hot water tank, and the hot water outlet is located at the top of the hot water tank. The hot water outlet is connected to the hot water outlet of the integrated water purifier and heat pump through a hot water discharge pipe, and a hot water outlet valve is provided on the hot water discharge pipe.

8. The water circuit structure of the integrated water purifier and heat pump according to claim 1, characterized in that, The pure water tank is connected to the ambient temperature water outlet of the integrated water purifier and heat pump through an ambient temperature water supply pipeline, and a water pump is installed on the ambient temperature water supply pipeline. And / or, the pure water outlet of the filter element is connected to the ambient temperature water outlet of the integrated water purifier and heat pump through an ambient temperature water discharge pipe, and an ambient temperature water outlet valve is provided on the ambient temperature water discharge pipe.

9. The water circuit structure of the integrated water purifier and heat pump according to claim 1, characterized in that, The filter element replenishes water to the pure water tank through the water outlet pipe. The water outlet pipe is equipped with a water replenishment valve. The pure water tank is equipped with a water level detection device, which includes a low water level detection float and a high water level detection float that is higher than the low water level detection float.

10. The water circuit structure of the integrated water purifier and heat pump according to claim 1, characterized in that, The filter element is equipped with a reverse osmosis membrane, the inlet of the booster pump is connected to a raw water inlet valve, the pure water outlet of the filter element is connected to the inlet of the booster pump through a pure water return pipeline, and a check valve is provided on the pure water return pipeline.

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