A direct drinking water and mains water heating host system

Abstract

The application discloses a straight drinking water and tap water heating host system, comprising: a straight drinking water inlet pipeline for straight drinking water flow; a tap water inlet pipeline for tap water flow; a straight drinking water first user pipeline for conveying straight drinking water to a user; a tap water first user pipeline for conveying tap water to a user; a heating pipeline with a water inlet end and a water outlet end, the water inlet end is communicated with the straight drinking water inlet pipeline or the tap water inlet pipeline through a first control valve assembly, and the water outlet end is communicated with the straight drinking water first user pipeline or the tap water first user pipeline through a second control valve assembly; and a heating element arranged on the heating pipeline and capable of heating straight drinking water or tap water flowing through the heating pipeline. The application can realize heating of straight drinking water and tap water in the same heating host, and does not need to additionally set a tap water boiler, thereby reducing the purchase cost.

Description

Technical Field

[0001] This invention relates to the field of water heating equipment, and particularly to a direct drinking water and tap water heating main unit system. Background Technology

[0002] With economic development and improved living standards, consumers have increasingly higher requirements for drinking water and tap water. For example, they demand filtration, purification, and heating for drinking water, and also hope to have convenient and affordable hot water to meet their needs for washing pots, dishes, and vegetables. Equipment that can meet these user needs will be increasingly recognized and favored by consumers.

[0003] Currently, some integrated water purifiers and heaters on the market can only heat drinking water that has been purified by the filter. If the heated drinking water is used for washing pots, dishes, and vegetables, there are problems with high costs and low water output. Other models can only heat tap water directly. If tap water is heated directly to boiling water for drinking, there are problems with the health of the drinking water. Neither of the above two solutions can simultaneously meet the actual needs of heating both drinking water and tap water. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a direct drinking water and tap water heating host system, which can heat both direct drinking water and tap water within the same heating host, eliminating the need for a separate tap water boiler and reducing equipment purchase costs.

[0005] A direct drinking water and tap water heating system according to an embodiment of the present invention includes: a direct drinking water inlet pipe for supplying direct drinking water; a tap water inlet pipe for supplying tap water; a first direct drinking water user pipe for supplying direct drinking water to users; a first tap water user pipe for supplying tap water to users; a heating pipe having an inlet end and an outlet end, the inlet end being connected to the direct drinking water inlet pipe or the tap water inlet pipe via a first control valve assembly, and the outlet end being connected to the first direct drinking water user pipe or the first tap water user pipe via a second control valve assembly; and a heating element disposed on the heating pipe for heating the direct drinking water or tap water flowing through the heating pipe.

[0006] It has at least the following beneficial effects: In use, if a user needs hot drinking water, the heating element is activated. The first control valve assembly connects the inlet of the heating pipe to the drinking water inlet pipe, and the second control valve assembly connects the outlet of the heating pipe to the first user's drinking water pipe. The drinking water in the drinking water inlet pipe flows through the heating pipe and is heated by the heating element on the heating pipe. The heated hot drinking water can then flow out through the first user's drinking water pipe and be used by the user. Similarly, if a user needs hot tap water, the heating element is activated. The first control valve assembly connects the inlet of the heating pipe to the tap water inlet pipe, and the second control valve assembly connects the outlet of the heating pipe to the first user's tap water pipe. The tap water in the tap water inlet pipe flows through the heating pipe and is heated by the heating element on the heating pipe. The heated tap water can then flow out through the first user's tap water pipe and be used by the user. In summary, this invention can heat both drinking water and tap water within the same heating unit, eliminating the need for an additional tap water boiler and reducing purchase costs.

[0007] According to some embodiments of the present invention, the system further includes: a direct drinking water storage cavity for storing direct drinking water, wherein the direct drinking water inlet pipe is connected to the direct drinking water storage cavity; a direct drinking water outlet pipe connected to the direct drinking water storage cavity; a tap water storage cavity for storing tap water, wherein the tap water inlet pipe is connected to the tap water storage cavity; and a tap water outlet pipe connected to the tap water storage cavity; wherein the inlet end of the heating pipe is connected to the direct drinking water outlet pipe or the tap water outlet pipe through the first control valve assembly.

[0008] According to some embodiments of the present invention, the water inlet pipe and the tap water inlet pipe are both provided with inlet valves.

[0009] According to some embodiments of the present invention, the first control valve assembly further includes: a two-inlet-one-outlet control valve, wherein the two inlets of the two-inlet-one-outlet control valve are respectively connected to the drinking water outlet pipeline and the tap water outlet pipeline, and the outlet of the two-inlet-one-outlet control valve is connected to the inlet end of the heating pipeline; or, the first control valve assembly includes two one-way valves, wherein the inlet of one of the one-way valves is connected to the drinking water outlet pipeline and the outlet is connected to the inlet end of the heating pipeline, and the inlet of the other one-way valve is connected to the tap water outlet pipeline and the outlet is connected to the inlet end of the heating pipeline.

[0010] According to some embodiments of the present invention, the system further includes a direct drinking water return pipeline and a tap water return pipeline. One end of the direct drinking water return pipeline is connected to the direct drinking water storage cavity, and the other end is connected to the second control valve assembly. One end of the tap water return pipeline is connected to the tap water storage cavity, and the other end is connected to the second control valve assembly. The outlet end of the heating pipeline is selectively connected to one of the direct drinking water return pipeline, the first direct drinking water user pipeline, the tap water return pipeline, and the first tap water user pipeline through the second control valve assembly.

[0011] According to some embodiments of the present invention, both the direct drinking water storage cavity and the tap water storage cavity are provided with a first water temperature detection element and a water level detection element.

[0012] According to some embodiments of the present invention, the second control valve assembly further includes: the second control valve assembly includes two one-in-two-out control valves, wherein the inlet of one of the one-in-two-out control valves is connected to the outlet of the heating pipeline, and the two outlets are respectively connected to the direct drinking water return pipeline and the direct drinking water first user pipeline; the inlet of the other one-in-two-out control valve is connected to the outlet of the heating pipeline, and the two outlets are respectively connected to the tap water return pipeline and the tap water first user pipeline; or, the second control valve assembly includes a one-in-four-out control valve, wherein the inlet of the one-in-four-out control valve is connected to the outlet of the heating pipeline, and the four outlets are respectively connected to the direct drinking water return pipeline, the direct drinking water first user pipeline, the tap water return pipeline, and the tap water first user pipeline.

[0013] According to some embodiments of the present invention, a flow detection device is provided on the first user water supply pipeline, and the flow detection device is used to detect the flow rate of tap water flowing through the first user water supply pipeline.

[0014] According to some embodiments of the present invention, the system further includes: a second user pipeline for direct drinking water, one end of which is connected to the direct drinking water inlet pipeline; a direct drinking water tap, the direct drinking water tap being connected to the other end of the second user pipeline for direct drinking water and the first user pipeline for direct drinking water; a second user pipeline for tap water, one end of which is connected to the tap water inlet pipeline; and a tap water tap, the tap water tap being connected to the other end of the second user pipeline for tap water and the first user pipeline for tap water.

[0015] According to some embodiments of the present invention, a second water temperature detector is provided on the first user pipeline of the direct drinking water, the second water temperature detector being used to detect the water temperature of the direct drinking water flowing through the first user pipeline of the direct drinking water. A third water temperature detector and a proportional valve are provided on the second user pipeline of the direct drinking water, the third water temperature detector being used to detect the water temperature of the direct drinking water flowing through the second user pipeline of the direct drinking water, and the proportional valve being used to adjust the opening of the second user pipeline of the direct drinking water to adjust the flow rate of the direct drinking water flowing into the direct drinking water dispenser through the second user pipeline of the direct drinking water.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of a system according to an embodiment of the present invention.

[0019] Icon labels:

[0020] Direct drinking water inlet pipe 1, tap water inlet pipe 2, direct drinking water first user pipe 3, tap water first user pipe 4, heating pipe 5, inlet end 5a, outlet end 5b, heating element 6, direct drinking water storage chamber 7, tap water storage chamber 8, direct drinking water outlet pipe 9, tap water outlet pipe 10, first control valve assembly 11, two inlet and one outlet control valve 11a, second control valve assembly 12, one inlet and two outlet control valve 12a, inlet valve 13, first water temperature detection element 14, water level detection element 15, direct drinking water return pipe 16, tap water return pipe 17, direct drinking water second user pipe 18, tap water second user pipe 19, second water temperature detection element 20, third water temperature detection element 21, proportional valve 22, flow detection element 23, direct drinking water tap 24, tap water tap 25. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1 The present invention discloses a direct drinking water and tap water heating host system, including a direct drinking water inlet pipe 1, a tap water inlet pipe 2, a direct drinking water first user pipe 3, a tap water first user pipe 4, a heating pipe 5, and a heating element 6.

[0025] The drinking water inlet pipe 1 is used to supply drinking water, the tap water inlet pipe 2 is used to supply tap water, the drinking water first user pipe 3 is used to deliver drinking water to users, the tap water first user pipe 4 is used to deliver tap water to users, the heating pipe 5 has an inlet end 5a and an outlet end 5b, the inlet end 5a is connected to the drinking water inlet pipe 1 or the tap water inlet pipe 2 through the first control valve assembly 11, and the outlet end 5b is connected to the drinking water first user pipe 3 or the tap water first user pipe 4 through the second control valve assembly 12. The heating element 6 is installed on the heating pipe 5 and can heat the drinking water or tap water flowing through the heating pipe 5.

[0026] Understandably, when in use, if a user needs hot drinking water, the heating element 6 is turned on, and the first control valve assembly 11 controls the water inlet 5a of the heating pipe 5 to connect with the drinking water inlet pipe 1, and the second control valve assembly 12 controls the water outlet 5b of the heating pipe 5 to connect with the first user drinking water pipe 3. The drinking water in the drinking water inlet pipe 1 will flow through the heating pipe 5 and be heated by the heating element 6 on the heating pipe 5. The heated hot drinking water can flow out through the first user drinking water pipe 3 and be used by the user. Similarly, if a user needs hot tap water, the heating element 6 is activated, and the first control valve assembly 11 connects the inlet 5a of the heating pipe 5 to the tap water inlet pipe 2, while the second control valve assembly 12 connects the outlet 5b of the heating pipe 5 to the first user tap water pipe 4. The tap water in the tap water inlet pipe 2 flows through the heating pipe 5 and is heated by the heating element 6. The heated tap water then flows out through the first user tap water pipe 4 and is available for the user. In summary, this invention can heat both drinking water and tap water within the same heating unit, eliminating the need for an additional tap water boiler and reducing purchase costs.

[0027] Of course, the above heating host system can also be used for the use of cold drinking water and cold tap water. Specifically, when the heating element 6 is turned off, the state of the first control valve assembly 11 and the second control valve assembly 12 can be controlled so that drinking water and tap water can be used without heating.

[0028] Furthermore, it should be noted that the temperatures of the cold drinking water and cold tap water in this invention are both lower than those of the hot drinking water and hot tap water. The cold drinking water and cold tap water can be water at room temperature or water that has been cooled. Additionally, a water purification component can be installed at the front end of the drinking water inlet pipe 1. This component filters the water to ensure it meets drinking water standards, and the filtered drinking water can flow into the drinking water inlet pipe 1. The tap water inlet pipe 2 can be directly connected to the tap water pipe.

[0029] In some embodiments of the present invention, both the drinking water inlet pipe 1 and the tap water inlet pipe 2 can be directly connected to the first control valve assembly 11, or indirectly connected to the first control valve assembly 11. In embodiments where both the drinking water inlet pipe 1 and the tap water inlet pipe 2 are directly connected to the first control valve assembly 11, the drinking water in the drinking water inlet pipe 1 can flow directly into the first control valve assembly 11, and the tap water in the tap water inlet pipe 2 can also flow directly into the first control valve assembly 11.

[0030] like Figure 1 As shown, in an embodiment where both the drinking water inlet pipe 1 and the tap water inlet pipe 2 are indirectly connected to the first control valve assembly 11, the heating host system may further include a drinking water storage chamber 7, a drinking water outlet pipe 9, a tap water storage chamber 8, and a tap water outlet pipe 10. The drinking water storage chamber 7 is used to store drinking water. The drinking water inlet pipe 1 and the drinking water outlet pipe 9 are both connected to the drinking water storage chamber 7. The drinking water in the drinking water inlet pipe 1 can first flow into the drinking water storage chamber 7 for storage. When the user takes it, it flows into the drinking water outlet pipe 9 through the drinking water storage chamber 7 and can enter the first control valve assembly 11. Similarly, the tap water storage chamber 8 is used to store tap water. The tap water inlet pipe 2 and the tap water outlet pipe 10 are both connected to the tap water storage chamber 8. The tap water in the tap water inlet pipe 2 can first flow into the tap water storage chamber 8 for storage. When the user takes it, it flows into the tap water outlet pipe 10 through the tap water storage chamber 8 and can enter the first control valve assembly 11. It should be noted that the water inlet 5a of the heating pipe 5 is connected to the drinking water outlet pipe 9 or the tap water outlet pipe 10 through the first control valve assembly 11.

[0031] It should be noted that the drinking water storage chamber 7 and the tap water storage chamber 8 can exist in two separate tanks, or they can be two independent chambers in the same tank.

[0032] In embodiments of the present invention, such as Figure 1As shown, both the drinking water inlet pipe 1 and the tap water inlet pipe 2 can be equipped with inlet valves 13. The two inlet valves 13 can control the opening and closing of the drinking water inlet pipe 1 and the tap water inlet pipe 2 respectively, thereby controlling the amount of drinking water entering the drinking water storage chamber 7 and the amount of tap water entering the tap water storage chamber 8.

[0033] In one embodiment of the present invention, the first control valve assembly 11 includes a two-inlet, one-outlet control valve 11a, such as... Figure 1 As shown, the two inlets of the two-inlet-one-outlet control valve 11a are connected to the drinking water outlet pipe 9 and the tap water outlet pipe 10, respectively, and the outlet of the two-inlet-one-outlet control valve 11a is connected to the inlet end 5a of the heating pipe 5.

[0034] In another embodiment of the present invention, the first control valve assembly 11 includes two one-way valves (not shown in the figure). The inlet of one of the one-way valves is connected to the drinking water outlet pipe 9, and the outlet is connected to the inlet end 5a of the heating pipe 5. The inlet of the other one-way valve is connected to the tap water outlet pipe 10, and the outlet is connected to the inlet end 5a of the heating pipe 5.

[0035] The specific form of the first control valve assembly 11 can be selected in the above two embodiments according to the actual situation.

[0036] One embodiment of the present invention further includes a direct drinking water return pipe 16 and a tap water return pipe 17. One end of the direct drinking water return pipe 16 is connected to the direct drinking water storage cavity 7, and the other end is connected to the second control valve assembly 12. One end of the tap water return pipe 17 is connected to the tap water storage cavity 8, and the other end is connected to the second control valve assembly 12. The outlet end 5b of the heating pipe 5 is selectively connected to one of the direct drinking water return pipe 16, the first direct drinking water user pipe 3, the tap water return pipe 17, or the first tap water user pipe 4 through the second control valve assembly 12. The hot direct drinking water heated by the heating element 6 can flow back to the direct drinking water storage cavity 7 through the direct drinking water return pipe 16 to achieve heat preservation of the direct drinking water. Similarly, the tap water heated by the heating element 6 can flow back to the tap water storage cavity 8 through the tap water return pipe 17 to achieve heat preservation of the tap water.

[0037] In one embodiment of the present invention, such as Figure 1 As shown, both the drinking water storage chamber 7 and the tap water storage chamber 8 can be equipped with a first water temperature detector 14 and a water level detector 15. The two first water temperature detectors 14 are used to detect the drinking water temperature in the drinking water storage chamber 7 and the tap water temperature in the tap water storage chamber 8, respectively. The two water level detectors 15 are used to detect the drinking water level in the drinking water storage chamber 7 and the tap water level in the tap water storage chamber 8, respectively.

[0038] Specifically, taking the direct drinking water storage chamber 7 as an example, the water level adjustment process in the direct drinking water storage chamber 7 is as follows: When the water level detection device 15 detects that the water level in the direct drinking water storage chamber 7 is low, the control system can open the inlet valve 13 on the direct drinking water inlet pipe 1, so that the direct drinking water flows into the direct drinking water storage chamber 7, until the water level detection device 15 detects that the water level in the direct drinking water storage chamber 7 has risen to the medium level, and then closes the inlet valve 13 on the direct drinking water inlet pipe 1. The water temperature adjustment process in the direct drinking water storage chamber 7 is as follows: The first water temperature detection element 14 in the direct drinking water storage chamber 7 detects the temperature of the direct drinking water. If the temperature value is lower than the preset temperature value (e.g., 75℃), the control system controls the first control valve assembly 11 to connect the inlet end 5a of the direct drinking water outlet pipe 9 and the heating pipe 5 and to turn on the heating element 6. It also controls the second control valve assembly 12 to connect the heating pipe 5 and the direct drinking water return pipe 16, so that the direct drinking water in the direct drinking water storage chamber 7 can be... After heating, the water from the heating element 6 flows back to the drinking water storage chamber 7 through the drinking water return pipe 16. At the same time, the water level is detected by the water level detection element 15. When the water level is at the middle level, the water temperature is detected first. If the water temperature is higher than the preset temperature value, the water inlet valve 13 is opened to introduce cold drinking water into the drinking water storage chamber 7. If the water temperature is lower than the preset temperature value, hot drinking water is continuously added to the drinking water storage chamber 7 until the water level detected by the water level detection element 15 is at the high level, at which point the heating of the heating element 6 is stopped.

[0039] It is understandable that the water level and temperature adjustment processes for tap water can be the same as those for drinking water. It should be noted that low, medium, and high water levels are only relative positions; the high water level is not necessarily located at the top of the storage chamber, and the standards for low, medium, and high water levels can be determined based on actual conditions.

[0040] In one embodiment of the present invention, such as Figure 1 As shown, a flow detection device 23 is installed on the first user water pipe 4. The flow detection device 23 is used to detect the flow rate of tap water flowing through the first user water pipe 4. When the user opens the tap water tap 25, the flow detection device 23 will receive a signal and control the second control valve assembly 12 through the control system to connect the heating pipe 5 to the first user water pipe 4. At the same time, it controls the first control valve assembly 11 to connect the tap water outlet pipe 10 to the heating pipe 5. The tap water tap 25 can be a regular faucet, that is, the user can adjust the opening of hot and cold water by turning the faucet handle, thereby manually adjusting the tap water outlet temperature.

[0041] It should be noted that, in order to prevent tap water from flowing into the heating pipe 5 and contaminating the drinking water in the subsequent heating pipe 5, after the user stops taking hot tap water, the flow detection device 23 will receive a signal that the user has stopped taking hot tap water. Then, the control system will switch the first control valve assembly 11 to the state where the drinking water outlet pipe 9 is connected to the heating pipe 5, and switch the second control valve assembly 12 to the state where the heating pipe 5 is connected to the tap water return pipe 17. The heating pipe 5 and the heating element 6 pipe on it are flushed with drinking water. The flushed drinking water flows into the tap water storage chamber 8. The above flushing process can be carried out when the heating element 6 is heating or when the heating element 6 is not heating.

[0042] In one embodiment of the present invention, the second control valve assembly 12 includes two control valves 12a, one inlet and two outlet, such as... Figure 1 The inlet of one of the one-in-two-out control valves 12a is connected to the outlet 5b of the heating pipe 5, and the two outlets are connected to the drinking water return pipe 16 and the first drinking water user pipe 3, respectively. The inlet of the other one-in-two-out control valve 12a is connected to the outlet 5b of the heating pipe 5, and the two outlets are connected to the tap water return pipe 17 and the first tap water user pipe 4, respectively.

[0043] In another embodiment of the present invention, the second control valve assembly 12 includes a one-inlet-four-outlet control valve (not shown in the figure). The inlet of the one-inlet-four-outlet control valve is connected to the outlet end 5b of the heating pipeline 5, and the four outlets are respectively connected to the direct drinking water return pipeline 16, the direct drinking water first user pipeline 3, the tap water return pipeline 17, and the tap water first user pipeline 4.

[0044] The specific form of the second control valve assembly 12 can be selected from the above two embodiments according to the actual situation.

[0045] Reference Figure 1In one embodiment of the present invention, it further includes a second user pipeline for direct drinking water 18, a direct drinking water tap 24, a second user pipeline for tap water 19, and a tap water tap 25. One end of the second user pipeline for direct drinking water 18 is connected to the direct drinking water inlet pipeline 1, the direct drinking water tap 24 is connected to the other end of the second user pipeline for direct drinking water 18 and the first user pipeline for direct drinking water 3, one end of the second user pipeline for tap water 19 is connected to the tap water inlet pipeline 2, and the tap water tap 25 is connected to the other end of the second user pipeline for tap water 19 and the first user pipeline for tap water 4. When a user takes cold drinking water, the cold drinking water can be directly supplied to the drinking water dispenser 24 through the second user pipe 18. Correspondingly, hot drinking water is supplied to the drinking water dispenser 24 through the first user pipe 3. Similarly, cold tap water can be directly supplied to the tap water dispenser 25 through the second user pipe 19. Correspondingly, hot tap water is supplied to the tap water dispenser 25 through the first user pipe 4.

[0046] In one embodiment of the present invention, such as Figure 1 As shown, a second water temperature sensor 20 is installed on the first user pipeline 3 of the direct drinking water system. The second water temperature sensor 20 is used to detect the water temperature of the direct drinking water flowing through the first user pipeline 3 of the direct drinking water system. A third water temperature sensor 21 and a proportional valve 22 are installed on the second user pipeline 18 of the direct drinking water system. The third water temperature sensor 21 is used to detect the water temperature of the direct drinking water flowing through the second user pipeline 18 of the direct drinking water system. The proportional valve 22 is used to adjust the opening of the second user pipeline 18 of the direct drinking water system to adjust the flow rate of the direct drinking water flowing into the direct drinking water inlet 24 through the second user pipeline 18 of the direct drinking water system.

[0047] When a user takes a sip of drinking water, the control system can obtain the user's preset water temperature T. 直饮水预设 The control system detects the current temperature of the drinking water in the drinking water storage chamber 7.

[0048] If the temperature of the drinking water in the direct drinking water storage chamber 7 is higher than the preset water intake temperature, the heating element 6 is turned off, and the hot drinking water flows directly into the first user's direct drinking water pipeline 3 without being heated. The second water temperature detection element 20 detects the temperature T of the hot drinking water. 热直饮水 The third water temperature detection component 21 detects the temperature T of cold direct drinking water. 冷直饮水 The control system calculates T 热直饮水 With T 直饮水预设 The difference can be used to obtain ΔT 热直饮水 By calculating T 冷直饮水 With T 直饮水预设 The difference can be used to obtain ΔT 冷直饮水 According to the hot and cold water mixing formula: ΔT 热直饮水 ×F 热直饮水 =ΔT 冷直饮水 ×F冷直饮水 (where F) 热直饮水 For the flow rate of the first user's drinking water pipeline 3, F 热直饮水 The value of F in this embodiment is a known fixed value that can be measured in advance, from which the cold drinking water flow rate F can be obtained. 冷直饮水 The control system can then control the opening degree of the proportional valve 22, thereby controlling the flow rate of cold drinking water through the second user pipeline 18. When the cold and hot drinking water mix at the drinking water inlet 24, the preset water temperature T is reached. 直饮水预设 .

[0049] If the temperature of the drinking water in the direct drinking water storage chamber 7 is lower than the preset water intake temperature, the heating element 6 will be turned on, and the control system will calculate T. 直饮水预设 With T 热直饮水 The difference can be used to obtain ΔT 热直饮水 According to the formula for the linear relationship between heating element power and temperature difference: P = F 热直饮水 ×ΔT 热直饮水 The power P of the heating element 6 can be calculated. The control system can adjust the power of the heating element 6 according to the real-time calculation. After being heated by the heating element 6, the drinking water flows into the first user pipe 3. At this time, the drinking water taken out from the drinking water outlet 24 is the drinking water that has reached the user's preset temperature.

[0050] It should be noted that the drinking water dispenser 24 in this invention can be a smart faucet.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A direct drinking water and tap water heating main unit system, characterized in that, include: Direct drinking water inlet pipes are used to supply direct drinking water. A direct drinking water storage cavity is used to store direct drinking water, and the direct drinking water inlet pipe is connected to the direct drinking water storage cavity; The drinking water outlet pipe is connected to the drinking water storage cavity; The tap water inlet pipe is used to supply tap water for circulation; A tap water storage chamber is used to store tap water, and the tap water inlet pipe is connected to the tap water storage chamber. The tap water outlet pipe is connected to the tap water storage cavity; The first user pipeline for direct drinking water is used to deliver direct drinking water to users; The first user water pipeline is used to deliver tap water to users; The heating pipe has an inlet end and an outlet end, and the inlet end of the heating pipe is connected to the direct drinking water outlet pipe or the tap water outlet pipe through a first control valve assembly. A heating element is installed on the heating pipe and can heat drinking water or tap water flowing through the heating pipe; The system includes a direct drinking water return pipeline and a tap water return pipeline. One end of the direct drinking water return pipeline is connected to the direct drinking water storage chamber, and the other end is connected to the second control valve assembly. One end of the tap water return pipeline is connected to the tap water storage chamber, and the other end is connected to the second control valve assembly. The outlet end of the heating pipeline is selectively connected to one of the direct drinking water return pipeline, the first direct drinking water user pipeline, the tap water return pipeline, and the first tap water user pipeline through the second control valve assembly.

2. The direct drinking water and tap water heating host system according to claim 1, characterized in that, Both the direct drinking water inlet pipe and the tap water inlet pipe are equipped with inlet valves.

3. The direct drinking water and tap water heating host system according to claim 1, characterized in that, The first control valve assembly includes a two-inlet-one-outlet control valve. The two inlets of the two-inlet-one-outlet control valve are respectively connected to the direct drinking water outlet pipeline and the tap water outlet pipeline, and the outlet of the two-inlet-one-outlet control valve is connected to the inlet end of the heating pipeline. Alternatively, the first control valve assembly includes two check valves, one of which has its inlet connected to the drinking water outlet pipe and its outlet connected to the inlet of the heating pipe, and the other check valve has its inlet connected to the tap water outlet pipe and its outlet connected to the inlet of the heating pipe.

4. The direct drinking water and tap water heating host system according to claim 1, characterized in that, Both the direct drinking water storage cavity and the tap water storage cavity are equipped with a first water temperature detection device and a water level detection device.

5. The direct drinking water and tap water heating host system according to claim 1, characterized in that, The second control valve assembly includes two one-inlet-two-outlet control valves. The inlet of one of the one-inlet-two-outlet control valves is connected to the outlet of the heating pipeline, and the two outlets are respectively connected to the direct drinking water return pipeline and the direct drinking water first user pipeline. The inlet of the other one-inlet-two-outlet control valve is connected to the outlet of the heating pipeline, and the two outlets are respectively connected to the tap water return pipeline and the tap water first user pipeline. Alternatively, the second control valve assembly includes a one-in-four-out control valve, wherein the inlet of the one-in-four-out control valve is connected to the outlet of the heating pipeline, and the four outlets are respectively connected to the direct drinking water return pipeline, the direct drinking water first user pipeline, the tap water return pipeline, and the tap water first user pipeline.

6. The direct drinking water and tap water heating host system according to claim 1, characterized in that, A flow detection device is installed on the first user's tap water pipeline, which is used to detect the flow rate of tap water flowing through the first user's tap water pipeline.

7. The direct drinking water and tap water heating host system according to claim 1, characterized in that, Also includes: The second user pipeline for direct drinking water is connected at one end to the direct drinking water inlet pipeline; A direct drinking water outlet is connected to the other end of the second direct drinking water user pipeline and the first direct drinking water user pipeline. The second user water supply pipeline is connected at one end to the water supply inlet pipeline. The tap water intake head is connected to the other end of the tap water second user pipeline and the tap water first user pipeline.

8. A direct drinking water and tap water heating host system according to claim 7, characterized in that, A second water temperature sensor is installed on the first user pipeline of the direct drinking water system. The second water temperature sensor is used to detect the temperature of the direct drinking water flowing through the first user pipeline of the direct drinking water system. A third water temperature sensor and a proportional valve are installed on the second user pipeline of the direct drinking water system. The third water temperature sensor is used to detect the temperature of the direct drinking water flowing through the second user pipeline of the direct drinking water system. The proportional valve is used to adjust the opening of the second user pipeline of the direct drinking water system to adjust the flow rate of direct drinking water flowing into the direct drinking water dispenser through the second user pipeline of the direct drinking water system.

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