Water supply equipment

Abstract

The utility model relates to the technical field of water supply equipment and discloses water supply equipment. The water supply equipment comprises a filtering assembly, a hot tank assembly, a water purification pipeline, an electric heating assembly and a flow adjusting piece, domestic water with the set temperature and connected with a domestic water faucet is stored in a hot tank, and water in a heat exchange pipeline in the hot tank exchanges heat with the domestic water with the set temperature. One end of a water purification front end pipeline of the water purification pipeline is connected with a water outlet of the filtering assembly, and the other end is connected with one end of a first water purification branch pipeline and one end of a second water purification branch pipeline; the other end of the first water purification branch pipeline is connected with a water inlet of the heat exchange pipeline, a water outlet of the heat exchange pipeline and the other end of the second water purification branch pipeline are connected with one end of the water purification rear end pipeline, and the other end of the water purification rear end pipeline is connected with the water purification faucet; and the electric heating assembly is arranged in the water purification rear end pipeline. And the flow adjusting piece adjusts the flow of water entering the water purification rear end pipeline from the second water purification branch pipeline and the water outlet of the heat exchange pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply equipment, in particular to a water supply equipment. Background Art

[0002] The Kitchen Treasure is a commonly used domestic water heater in the kitchen, providing hot water for washing and washing. The water purifier purifies tap water and heats it to provide users with drinking water at the desired temperature. To improve kitchen space utilization, the Kitchen Treasure and water purifier are integrated into the design to meet users' water needs for different water qualities and temperatures.

[0003] The integrated water supply equipment in the existing technology can provide users with both domestic hot water and drinking hot water. However, the existing water supply equipment cannot provide a large flow of drinking hot water at a low power level and cannot meet users' needs for drinking water at different temperatures. Utility Model Content

[0004] The technical problem solved by the present utility model is to provide a water supply device, which can effectively solve the problem that the existing water supply equipment cannot provide a large flow of drinking hot water under relatively low power; and cannot meet the user's demand for drinking water at different temperatures. The water supply equipment is realized to provide a larger flow of hot water under relatively low power; and can provide drinking water at different temperatures.

[0005] The above technical problems are solved by the following technical solutions:

[0006] Water supply equipment, including:

[0007] A filter assembly, wherein the water inlet of the filter assembly is connected to a tap water source;

[0008] The hot tank assembly includes a hot tank and a heat exchange pipeline. The hot tank stores domestic water at a set temperature, and the domestic water outlet at the set temperature is connected to a domestic water faucet. The heat exchange pipeline is arranged in the hot tank so that the water in the heat exchange pipeline exchanges heat with the domestic water at the set temperature.

[0009] The water purification pipeline includes a water purification front-end pipeline, a first water purification branch pipeline, a second water purification branch pipeline and a water purification back-end pipeline, one end of the water purification front-end pipeline is connected to the water outlet of the filter assembly, and the other end is connected to one end of the first water purification branch pipeline and one end of the second water purification branch pipeline; the other end of the first water purification branch pipeline is connected to the water inlet of the heat exchange pipeline, the water outlet of the heat exchange pipeline and the other end of the second water purification branch pipeline are both connected to one end of the water purification back-end pipeline, and the other end of the water purification back-end pipeline is connected to the water purification faucet;

[0010] Two flow regulating members are provided, one of which is used to control the flow of water from the second purified water branch pipeline into the purified water rear end pipeline, and the other flow regulating member is used to control the flow of water from the water outlet of the heat exchange pipeline into the purified water rear end pipeline;

[0011] The electric heating component is arranged in the rear end pipeline of the water purification system.

[0012] Compared with the background technology, the water supply equipment of the present invention has the following beneficial effects:

[0013] The water supply equipment provided by the present invention is that the tap water source enters the water purification pipeline after being processed by the filter component, and the purified water enters the first water purification branch pipeline through the water purification front end pipeline and can enter the heat exchange pipeline in the hot tank component. The heat stored in the hot tank for supplying domestic water with a set temperature to the domestic water faucet is used to preheat a portion of the purified water entering the heat exchange pipeline, and the preheated portion of the purified water is then heated by the electric heating component of the water purification rear end pipeline. The preheated purified water is heated until the temperature rise of the hot water is reduced, so that the electric heating component can produce a larger flow of hot water at a lower power. When the electric heating component is turned off, the purified water enters the second water purification branch pipeline through the water purification front end pipeline and then enters the water purification rear end pipeline and flows out of the purified water faucet without being heated, thereby providing users with purified water at normal temperature. Furthermore, the normal temperature purified water in the second purified water branch pipeline and the preheated purified water flowing out of the water outlet of the heat exchange pipeline are mixed, and the water flow rate entering the purified water rear-end pipeline from the water outlet of the second purified water branch pipeline and the heat exchange pipeline is controlled by a flow regulating component, thereby providing drinking water at different temperatures and meeting the user's needs for drinking water at different temperatures.

[0014] In one embodiment, the flow regulating component includes a flow regulating valve, which is arranged in the second clean water branch pipeline and is used to control the water flow from the second clean water branch pipeline into the clean water rear end pipeline.

[0015] In one embodiment, the flow regulating component includes a regulating water pump, which is arranged at the water outlet of the heat exchange pipeline and is used to control the water flow rate entering the water purification rear-end pipeline from the water outlet of the heat exchange pipeline.

[0016] In one embodiment, a heat exchange temperature sensor is further provided at the water outlet of the heat exchange pipeline.

[0017] In one embodiment, the filtration component includes a pretreatment composite filter element, a connecting pipeline and a reverse osmosis filter element. The water inlet of the pretreatment composite filter element is connected to the tap water source. The connecting pipeline includes a first connecting pipeline and a second connecting pipeline. The first connecting pipeline connects the water outlet of the pretreatment composite filter element and the water inlet of the reverse osmosis filter element. The water outlet of the reverse osmosis filter element is connected to one end of the water purification front-end pipeline; the second connecting pipeline is connected to the set temperature domestic water inlet at one end away from the first connecting pipeline.

[0018] In one embodiment, the end of the second connecting pipe away from the first connecting pipe is also connected to the cold water inlet of the domestic water faucet; the set temperature domestic water outlet is connected to the hot water inlet of the domestic water faucet.

[0019] In one embodiment, a first check valve is provided on the second connecting pipeline, and the first check valve is used for one-way conduction of the first connecting pipeline to the set temperature domestic water inlet and the cold water inlet of the domestic water faucet.

[0020] In one embodiment, the purified water pipeline further includes a third purified water branch pipeline, the third purified water branch pipeline being used to connect the other end of the purified water front-end pipeline and the first connecting pipeline, and the third purified water branch pipeline is provided with a pressure relief check valve, the pressure relief check valve being used for one-way conduction from the purified water front-end pipeline to the first connecting pipeline;

[0021] A first solenoid valve is further provided on the first connecting pipeline, and the first solenoid valve is located between a first connecting point between the second connecting pipeline and the first connecting pipeline and a second connecting point between the third purified water branch pipeline and the first connecting pipeline.

[0022] In one embodiment, a second check valve is provided on the second purified water branch pipeline, and the second check valve is used for one-way conduction from the purified water front-end pipeline to the purified water rear-end pipeline.

[0023] In one embodiment, a heating wire is provided in the hot tank, and the heat exchange pipeline is provided around the heating wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the working principle of the water supply equipment provided by the specific embodiment of the utility model;

[0026] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0027] Description of labels:

[0028] 1. Filter assembly; 11. Pretreatment composite filter element; 12. Connecting pipeline; 121. First connecting pipeline; 1211. First solenoid valve; 1212. Booster water pump; 122. Second connecting pipeline; 1221. First check valve; 13. Reverse osmosis filter element; 14. Wastewater pipeline; 141. Third solenoid valve;

[0029] 2. Hot tank assembly; 21. Hot tank; 211. Heating wire; 212. First thermostat; 213. Second thermostat; 214. Water level probe; 22. Heat exchange piping; 221. Regulating water pump; 222. Heat exchange temperature sensor;

[0030] 3. Purified water pipeline; 31. Purified water front-end pipeline; 32. First purified water branch pipeline; 321. Second solenoid valve; 322. Negative pressure valve; 33. Second purified water branch pipeline; 331. Second check valve; 332. Flow regulating valve; 34. Purified water back-end pipeline; 341. Flow meter; 342. Heating pipe; 343. Inlet water temperature sensor; 344. Outlet water temperature sensor; 345. Water-gas separator; 35. Third purified water branch pipeline; 351. Pressure relief check valve;

[0031] 4. Domestic water pipeline; 41. Domestic water front pipeline; 42. First domestic water branch pipeline; 43. Second domestic water branch pipeline;

[0032] 5. Water purification faucet;

[0033] 6. Domestic water faucet. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0037] In the description of this application, it should be noted that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0038] like Figure 1 and Figure 2 As shown, this embodiment provides a water supply device, including a filter assembly 1, a hot water tank assembly 2, a water purification pipeline 3, a domestic water pipeline 4, an electric heating assembly, and a flow regulator. The water inlet of the filter assembly 1 is connected to a tap water source. The filter assembly 1 purifies the tap water provided by the tap water source, and then flows out of the water purification pipeline 3 to the water purification faucet 5, providing the user with clean water at room temperature. The clean water pipeline 3 flows through the hot water tank assembly 2 and / or the electric heating assembly, and the flow regulator adjusts the flow of the clean water at room temperature and the water flowing through the hot water tank assembly 2, providing the user with drinking water at different temperatures to meet the user's different drinking water temperature needs. The tap water source is connected to the domestic water faucet 6 through the domestic water pipeline 4, and the hot water tank assembly 2 can provide the user with domestic water at a set temperature. This water supply device integrates the filter assembly 1 and the hot water tank assembly 2, provides drinking water to the user through the water purification faucet 5 and domestic water to the user through the domestic water faucet 6, reducing the kitchen's occupied area and improving kitchen space utilization.

[0039] In one embodiment, the filter assembly 1 includes a pretreatment composite filter element 11, a connecting pipe 12 and a reverse osmosis filter element 13. The water inlet of the pretreatment composite filter element 11 is connected to the tap water source. The connecting pipe 12 includes a first connecting pipe 121. The first connecting pipe 121 connects the water outlet of the pretreatment composite filter element 11 and the water inlet of the reverse osmosis filter element 13. The water outlet of the reverse osmosis filter element 13 is connected to the clean water pipe 3. The pretreatment composite filter element 11 is used to filter tap water, which can effectively remove residual chlorine and particulate matter in the water and avoid scaling after heating. The reverse osmosis filter element 13 is used to filter toxins, salt ions, glycogen, colloids, bacteria, E. coli, dust particles, etc. The tap water is filtered and purified by the filter assembly 1 to obtain drinking water that can be directly drunk by users. The clean water obtained by the filter assembly 1 has a rated clean water flow rate of >1.56L / min.

[0040] Specifically, first connecting pipeline 121 is further provided with a first solenoid valve 1211 and a booster pump 1212. First solenoid valve 1211 is used to control the on / off state of first connecting pipeline 121. When first solenoid valve 1211 is opened, water filtered by pretreatment composite filter element 11 is pressurized by booster pump 1212 and then enters reverse osmosis filter element 13 for purification. The wastewater outlet of reverse osmosis filter element 13 is connected to wastewater pipeline 14, which is provided with a third solenoid valve 141. When third solenoid valve 141 is opened, a portion of the water and impurities that cannot pass through the membrane are discharged through wastewater pipeline 14.

[0041] In one embodiment, the hot tank assembly 2 includes a hot tank 21. The hot tank 21 is a pressurized hot tank that, when the tap water source is turned on, pressurizes the water out. The hot tank 21 includes a set-temperature domestic water inlet and a set-temperature domestic water outlet. Specifically, a heating wire 211 is provided within the hot tank 21. When the hot tank 21 is initially filled with water, tap water enters the hot tank 21 through the set-temperature domestic water inlet. A water level probe 214 is provided at the top of the hot tank 21. When the water in the hot tank 21 triggers the water level probe 214, indicating that the hot tank 21 is full, the heating wire 211 is controlled to start heating. The hot tank 21 is also provided with a first thermostat 212 and a second thermostat 213. The first thermostat 212 is a manual protection temperature control, while the second thermostat 213 is an automatic reset temperature control. When the water in the hot tank 21 reaches the disconnect temperature, the second thermostat 213 disconnects, and the heating wire 211 stops heating. When the water temperature in heating tank 21 falls below the reset temperature, second thermostat 213 resets and closes, and heating wire 211 resumes heating. The holding temperature in heating tank 21 is 60°C to 70°C, meaning the disconnection temperature is 70°C and the reset temperature is 60°C. The holding temperature is the set temperature, indicating that domestic water at 60°C to 70°C is stored in heating tank 21.

[0042] In order to ensure the heat preservation performance of the heat tank 21, the heat tank 21 is wrapped with foam or heat insulation cotton for heat preservation.

[0043] In one embodiment, the set temperature domestic water outlet and the tap water source are both connected to the domestic water faucet 6. The set temperature domestic water in the hot tank 21 is mixed with the normal temperature tap water to obtain domestic water of different temperatures.

[0044] Furthermore, the set-temperature domestic water inlet is equipped with a baffle that slows the flow of water entering hot tank 21, preventing the water entering hot tank 21 from the set-temperature domestic water inlet from mixing too quickly with the set-temperature domestic water. Furthermore, a set-temperature domestic water outlet is located at the top of hot tank 21 to ensure the temperature of the water flowing into domestic water faucet 6 through the set-temperature domestic water outlet. A drain is provided at the bottom of hot tank 21 to drain the stored water.

[0045] In one embodiment, the connecting pipe 12 further includes a second connecting pipe 122. The set-temperature domestic water inlet and the cold water inlet of the domestic water faucet 6 are both connected to the end of the second connecting pipe 122 away from the first connecting pipe 121, and the set-temperature domestic water outlet is connected to the hot water inlet of the domestic water faucet 6. The tap water filtered by the pre-treatment composite filter element 11 is supplied to the hot tank 21 and the domestic water faucet 6, making the set-temperature domestic water and the room-temperature domestic water in the hot tank 21 purer, avoiding the problem of scale formation after heating that needs to be cleaned; at the same time, relatively pure domestic water is provided to the user; in addition, the set-temperature domestic water and the room-temperature domestic water are mixed in the domestic water faucet 6 to obtain domestic water of different temperatures, meeting the user's demand for domestic water of different temperatures.

[0046] The domestic water pipeline 4 includes a domestic water front-end pipeline 41, a first domestic water branch pipeline 42, a second domestic water branch pipeline 43 and a domestic water back-end pipeline. One end of the domestic water front-end pipeline 41 is connected to the tap water source, and the other end is connected to the set temperature domestic water inlet and the first domestic water branch pipeline 42. The set temperature domestic water outlet is connected to the domestic water back-end pipeline through the second domestic water branch pipeline 43. The other end of the first domestic water branch pipeline 42 is also connected to the domestic water back-end pipeline. One end of the domestic water back-end pipeline is connected to the cold water inlet and the hot water inlet of the domestic water faucet 6, and the other end is connected to the outlet of the domestic water faucet 6. That is, the tap water flowing out of the front-end pipe 41 of domestic water is divided into two parts. One part enters the hot tank 21 for heating and then enters the domestic water back-end pipe through the second domestic water branch pipe 43 and the hot water inlet of the domestic water faucet 6. The other part is used as normal temperature domestic water through the first domestic water branch pipe 42 and the cold water inlet of the domestic water faucet 6 to enter the domestic water back-end pipe. The heated domestic water and the normal temperature domestic water are mixed in the domestic water back-end pipe to form domestic water of different temperatures, and are provided to users through the water outlet of the domestic water faucet 6.

[0047] In this embodiment, one end of the domestic water front-end pipeline 41 is connected to the tap water source, and the other end is connected to the water inlet of the pre-treatment composite filter element 11. The first domestic water branch pipeline 42 and the domestic water inlet are both connected to the end of the second connecting pipeline 122 away from the first connecting pipeline 121, so that the water in the domestic water front-end pipeline 41, after being filtered, enters the first domestic water branch pipeline 42 and the domestic water inlet through the first connecting pipeline 121 and the second connecting pipeline 122. The domestic water back-end pipeline is set in the domestic water faucet 6.

[0048] In one embodiment, the hot tank assembly 2 further includes a heat exchange pipe 22 , which is disposed in the hot tank 21 so that water in the heat exchange pipe 22 exchanges heat with domestic water at a set temperature.

[0049] Furthermore, the heat exchange pipe 22 is arranged around the heating wire 211. The heating wire 211 is arranged in a U-shape inside the hot tank 21. The heat exchange pipe 22 enters the hot tank 21 and winds from one side of the U-shaped heating wire 211 to the other side to form a serpentine structure. The heat exchange pipe 22 is arranged circumferentially of the heating wire 211. In this way, even if the heat exchange pipe 22 is very long, it can ensure that the purified water in each part of the heat exchange pipe 22 is evenly heated, ensuring the uniformity and stability of the temperature of the preheated purified water.

[0050] Of course, in other embodiments, the heat exchange pipe 22 may enter the hot tank 21 and first circle around one side of the U-shaped heating wire 211 to the open end and then extend to the other side and circle to the bottom of the U-shaped heating wire 211, and finally be led out from the hot tank 21.

[0051] Specifically, the heat exchange pipe 22 is made of environmentally friendly copper or stainless steel. Both ends of the heat exchange pipe 22 are located outside the hot tank 21, which can ensure the purity of the purified water in the heat exchange pipe 22 without affecting the normal operation of the hot tank 21.

[0052] In one embodiment, the purified water pipeline 3 includes a purified water front-end pipeline 31, a first purified water branch pipeline 32, a second purified water branch pipeline 33, and a purified water rear-end pipeline 34. One end of the purified water front-end pipeline 31 is connected to the water outlet of the filter assembly 1, and the other end is connected to one end of the first purified water branch pipeline 32 and one end of the second purified water branch pipeline 33. The other end of the first purified water branch pipeline 32 is connected to the water inlet of the heat exchange pipeline 22. The water outlet of the heat exchange pipeline 22 and the other end of the second purified water branch pipeline 33 are both connected to one end of the purified water rear-end pipeline 34, and the other end of the purified water rear-end pipeline 34 is connected to the water purification faucet 5. An electric heating assembly is provided in the purified water rear-end pipeline 34. One end of the purified water front-end pipeline 31 is connected to the water outlet of the reverse osmosis filter element 13, so that purified water enters the purified water pipeline 3. The purified water entering the purified water pipeline 3 can enter the heat exchange pipeline 22 through the first purified water branch pipeline 32. The heat of the set temperature domestic water stored in the heat tank 21 is used to preheat a portion of the purified water entering the heat exchange pipeline 22. The preheated purified water is then heated by the electric heating component of the purified water rear end pipeline 34. The preheated purified water is heated until the temperature rise of the hot water is reduced, allowing the electric heating component to produce a larger flow of hot water at a lower power. When the electric heating component is turned off, the purified water enters the second purified water branch pipeline 33 through the purified water front end pipeline 31, and then enters the purified water rear end pipeline 34, and then flows out of the purified water faucet 5 without heating, providing the user with purified water at room temperature.

[0053] In one embodiment, the first purified water branch line 32 is provided with a second solenoid valve 321 and a negative pressure valve 322. The negative pressure valve 322 is located between the second solenoid valve 321 and the water inlet of the heat exchange line 22. The second solenoid valve 321 is used to control the on / off flow of the first purified water branch line 32. The negative pressure valve 322 is used to reduce the pressure of the water entering the heat exchange line 22, thereby preventing excessive water pressure from damaging components located at the water outlet of the heat exchange line 22.

[0054] In one embodiment, a second check valve 331 is provided on the second purified water branch pipeline 33. The second check valve 331 is used for one-way conduction from the purified water front end pipeline 31 to the purified water rear end pipeline 34, and is used to prevent the purified water in the purified water rear end pipeline 34 from flowing back.

[0055] In one embodiment, two flow regulators are provided. One flow regulator controls the flow of water from the second purified water branch line 33 into the purified water rear end line 34, and the other flow regulator controls the flow of water from the outlet of the heat exchange line 22 into the purified water rear end line 34. This ensures that the normal temperature purified water and preheated purified water entering the purified water rear end line 34 are mixed to reach the desired drinking water temperature, thereby meeting the user's demand for drinking water at different temperatures. The flow regulator can be an on-off valve, a water proportional valve, a water pump, or a combined valve body, as long as it can regulate the water flow in the pipeline, and the specifics are not limited here.

[0056] In one embodiment, the flow regulating element includes a flow regulating valve 332, which is disposed in the second purified water branch line 33 and is used to control the flow of water entering the purified water rear end line 34 from the second purified water branch line 33. The flow regulating valve 332 regulates the flow of purified water passing through the second purified water branch line 33, thereby controlling the amount of room-temperature purified water flowing out of the purified water faucet 5; or controls the flow of room-temperature water mixed with preheated purified water flowing out of the heat exchange line 22, thereby controlling the purified water flowing out of the purified water faucet 5 at a desired temperature.

[0057] In one embodiment, the flow regulating element includes a regulating water pump 221, which is located at the water outlet of the heat exchange pipeline 22 and is used to control the flow of water entering the water purification rear-end pipeline 34 from the water outlet of the heat exchange pipeline 22. The regulating water pump 221 is a self-priming water pump. By adjusting the power of the self-priming water pump, the speed of the self-priming water pump can be adjusted, thereby controlling the flow rate of the preheated purified water at the water outlet of the heat exchange pipeline 22 by adjusting the water flow rate at the water outlet of the heat exchange pipeline 22. Of course, in other embodiments, the regulating water pump 221 can also be located on the first water purification branch pipeline 32.

[0058] In one embodiment, one of the two flow regulating components is arranged on the front end pipeline 31 of the purified water, and the other is arranged on the first purified water branch pipeline 32 or the second purified water branch pipeline 33, so as to realize the regulation of the water flow from the second purified water branch pipeline 33 into the rear end pipeline 34 of the purified water, and the water flow from the outlet of the heat exchange pipeline 22 into the rear end pipeline 34 of the purified water.

[0059] In one embodiment, a heat exchange temperature sensor 222 is further provided at the water outlet of the heat exchange pipe 22. The heat exchange temperature sensor 222 detects the temperature of the water outlet of the heat exchange pipe 22, thereby more accurately controlling the water outlet temperature of the water purification faucet 5.

[0060] In one embodiment, the electric heating assembly includes a heating tube 342, a water inlet temperature sensor 343, and a water outlet temperature sensor 344. The water inlet temperature sensor 343 is located before the water inlet of the heating tube 342 and is used to detect the temperature of the purified water before entering the heating tube 342 for heating. The water outlet temperature sensor 344 is located after the water outlet of the heating tube 342 and is used to detect the temperature of the purified water after being heated by the heating tube 342. A flow meter 341 and a water vapor separator 345 are also provided on the purified water rear end pipeline 34. The flow meter 341 is located before the water inlet temperature sensor 343 and is used to measure the water flow entering the purified water rear end pipeline 34. The water vapor separator 345 is located after the water outlet temperature sensor 344 and is used to remove gas from the purified water flowing out of the purified water faucet 5.

[0061] Furthermore, a first check valve 1221 is provided on the second connecting pipe 122, and the first check valve 1221 is used for one-way conduction of the first connecting pipe 121 to the set temperature domestic water inlet and the cold water inlet of the domestic water faucet 6, so as to prevent the domestic water in the hot tank 21 and the cold water in the domestic water faucet 6 from flowing back.

[0062] In one embodiment, the purified water pipeline 3 further includes a third purified water branch pipeline 35 , which is used to connect the other end of the purified water front-end pipeline 31 and the first connecting pipeline 121 , and a pressure relief check valve 351 is provided on the third purified water branch pipeline 35 . The third clean water branch pipeline 35 is connected to the front end of the booster water pump 1212. The water purified by the reverse osmosis filter element 13 is divided into three paths. The first path enters the first clean water branch pipeline 32, passes through the second solenoid valve 321 and the negative pressure valve 322, enters the heat exchange pipeline 22 through the water inlet of the heat exchange pipeline 22, and then flows out of the water outlet of the heat exchange pipeline 22 through the heat exchange temperature sensor 222 and the regulating water pump 221 to enter the clean water rear end pipeline 34; the second path enters the second clean water branch pipeline 33, passes through the flow regulating valve 332 and the second check valve 331, and merges with the preheated clean water flowing out of the heat exchange pipeline 22 before the flow meter 341. After that, the water inlet temperature sensor 343 detects the water inlet temperature, and then enters the heating pipe 342 for heating. After heating, the water outlet temperature sensor 344 detects the water outlet temperature, and the gas is separated by the water-gas separator 345 before entering the clean water faucet 5. The excess clean water from the third route enters the third clean water branch pipeline 35, and flows back to the booster water pump 1212 through the pressure relief check valve 351. On the one hand, it can ensure that the clean water flow in the clean water rear-end pipeline 34 is the required flow; on the other hand, it can protect the reverse osmosis filter element 13 and increase the service life of the reverse osmosis filter element 13.

[0063] Specifically, the first solenoid valve 1211 is located between the first connection point between the second connecting line 122 and the first connecting line 121 and the second connection point between the third purified water branch line 35 and the first connecting line 121. The first solenoid valve 1211 controls the on-off of the purified water line 3. When the water supply device is first started, the first solenoid valve 1211 can be closed first, so that the tap water in the tap water source enters the pretreatment composite filter element 11 through the domestic water front end line 41 for pretreatment, and then enters the hot tank 21 through the first connecting line 121, the second connecting line 122 and the domestic water inlet to be heated to the set temperature domestic water by the heating wire 211. Then, the first solenoid valve 1211 is opened again, so that the purified water treated by the reverse osmosis filter element 13 enters the heat exchange line 22 through the water purification front end line 31 and the first purified water branch line 32, and can exchange heat with the domestic water at the set temperature to form preheated purified water.

[0064] The water supply system also includes a control panel, which displays the water outlet temperature and volume settings. The water outlet temperature settings include: room temperature, 45°C, 60°C, 85°C, 100°C, and a custom temperature setting. The custom temperature setting is adjustable from 40°C to 100°C, with a minimum adjustment of 5°C. The water outlet volume settings include: 300ml, 500ml, 1000ml, five-minute flow, and a custom flow. The five-minute flow is timed by a built-in timer on the control panel. The maximum flow rate for the custom flow setting is 1000ml, and the minimum adjustable flow rate is 50ml.

[0065] The method for controlling the output of purified water at different temperature levels of the water supply equipment provided in this embodiment is as follows:

[0066] (1) Normal temperature water purification mode

[0067] When normal temperature water purification is selected, the first solenoid valve 1211 and the booster water pump 1212 are controlled to open, the flow regulating valve 332 is adjusted to the maximum flow, and the flow meter 341 calculates the water flow rate. When the water output volume selected by the user is reached, the first solenoid valve 1211, the booster water pump 1212 and the flow regulating valve 332 are controlled to close to complete the normal temperature water purification.

[0068] (2) Hot water mode

[0069] When the hot water mode is selected, the first solenoid valve 1211, the booster pump 1212, the second solenoid valve 321, the regulating water pump 221 and the heating pipe 342 are turned on; at the same time, the temperature value of the selected purified water outlet temperature level is compared with the temperature value of the preheated purified water detected by the heat exchange temperature sensor 222. When the temperature value of the preheated purified water is higher than the temperature value of the selected purified water outlet temperature level, the flow regulating valve 332 is turned on, and the normal temperature purified water in the second purified water pipeline 3 is mixed with the preheated purified water and enters the purified water rear end pipeline 34. The water inlet temperature sensor 343 in the purified water rear end pipeline 34 is turned on. Detect the temperature of the mixed water, adjust the opening of the flow regulating valve 332 according to the temperature of the mixed water, and control the flow of normal temperature purified water. After the mixing is completed, the heating tube 342 is heated according to the set power, and the outlet water temperature sensor 344 detects the outlet water temperature. When the outlet water temperature is different from the temperature value of the selected purified water outlet temperature level, adjust the opening of the flow regulating valve 332 and / or adjust the power of the water pump 221 to adjust the mixing ratio of the preheated purified water and the normal temperature purified water, so that the outlet water temperature detected by the outlet water temperature sensor 344 is consistent with the temperature value of the selected purified water outlet temperature level. When the temperature of the preheated purified water is lower than the selected temperature value of the purified water outlet temperature range, the flow regulating valve 332 is closed, allowing only the preheated purified water to enter the purified water rear end pipeline 34, where it is then heated by the heating pipe 342. The outlet water temperature detected by the outlet water temperature sensor 344 is then compared with the temperature value of the selected purified water outlet temperature range. If the outlet water temperature is inconsistent with the temperature value of the selected purified water outlet temperature range, the outlet water temperature is controlled by adjusting the power of the heating pipe 342 and the power of the regulating water pump 221 until the temperature value of the selected purified water outlet temperature range is reached. After reaching the temperature value of the selected purified water outlet temperature range, the first solenoid valve 1211, the booster water pump 1212, the second solenoid valve 321, the regulating water pump 221, and the heating pipe 342 are closed, completing the water outlet.

[0070] Since the heat of the set temperature domestic water stored in the heat tank 21 is limited, the temperature of the preheated purified water at the outlet of the heat exchange pipeline 22 will slowly drop. By adjusting the opening of the flow control valve 332 and the power of the water pump 221, the maximum purified water flow in the purified water rear-end pipeline 34 is guaranteed until the temperature value of the preheated purified water detected by the heat exchange temperature sensor 222 is lower than the temperature value of the selected purified water outlet temperature level.

[0071] In order to ensure the service life of the filter component 1, the water supply equipment provided in this embodiment also includes a flushing mode for the clean water pipeline 3. When the water supply equipment is powered on for the first time, runs for a set period of time, or is powered on but not run for a long time, the water supply equipment will enter the flushing mode. After entering the flushing mode, the first solenoid valve 1211 and the third solenoid valve 141 are opened for 30 seconds, and then the first solenoid valve 1211 and the third solenoid valve 141 are closed to complete the flushing.

[0072] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features 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.

[0073] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. Water supply equipment, characterized in that, include: A filter assembly (1), wherein the water inlet of the filter assembly (1) is connected to a tap water source; The hot tank assembly (2) comprises a hot tank (21) and a heat exchange pipeline (22), wherein the hot tank (21) stores domestic water at a set temperature, and the domestic water outlet at the set temperature is connected to a domestic water faucet (6); the heat exchange pipeline (22) is arranged in the hot tank (21) so that the water in the heat exchange pipeline (22) exchanges heat with the domestic water at the set temperature; The water purification pipeline (3) comprises a water purification front-end pipeline (31), a first water purification branch pipeline (32), a second water purification branch pipeline (33) and a water purification rear-end pipeline (34); one end of the water purification front-end pipeline (31) is connected to the water outlet of the filter assembly (1), and the other end is connected to one end of the first water purification branch pipeline (32) and one end of the second water purification branch pipeline (33); the other end of the first water purification branch pipeline (32) is connected to the water inlet of the heat exchange pipeline (22); the water outlet of the heat exchange pipeline (22) and the other end of the second water purification branch pipeline (33) are both connected to one end of the water purification rear-end pipeline (34); and the other end of the water purification rear-end pipeline (34) is connected to the water purification faucet (5); Two flow regulating members are provided, one of which is used to control the flow of water from the second water purification branch pipeline (33) into the water purification rear end pipeline (34), and the other flow regulating member is used to control the flow of water from the water outlet of the heat exchange pipeline (22) into the water purification rear end pipeline (34); The electric heating component is arranged in the water purification rear end pipeline (34).

2. The water supply equipment according to claim 1, characterized in that The flow regulating member comprises a flow regulating valve (332), which is arranged in the second water purification branch pipeline (33) and is used to control the water flow entering the water purification rear end pipeline (34) from the second water purification branch pipeline (33).

3. The water supply equipment according to claim 1, characterized in that The flow regulating component comprises a regulating water pump (221), which is arranged at the water outlet of the heat exchange pipeline (22) and is used to control the water flow rate entering the water purification rear end pipeline (34) from the water outlet of the heat exchange pipeline (22).

4. The water supply equipment according to claim 1, characterized in that The water outlet of the heat exchange pipeline (22) is also provided with a heat exchange temperature sensor (222).

5. The water supply equipment according to claim 1, characterized in that The filter assembly (1) comprises a pretreatment composite filter element (11), a connecting pipeline (12) and a reverse osmosis filter element (13); the water inlet of the pretreatment composite filter element (11) is connected to the tap water source; the connecting pipeline (12) comprises a first connecting pipeline (121) and a second connecting pipeline (122); the first connecting pipeline (121) connects the water outlet of the pretreatment composite filter element (11) and the water inlet of the reverse osmosis filter element (13); the water outlet of the reverse osmosis filter element (13) is connected to one end of the water purification front-end pipeline (31); and the second connecting pipeline (122) is connected to the set temperature domestic water inlet at one end away from the first connecting pipeline (121).

6. The water supply equipment according to claim 5, characterized in that The end of the second connecting pipe (122) away from the first connecting pipe (121) is also connected to the cold water inlet of the domestic water tap (6); and the set temperature domestic water outlet is connected to the hot water inlet of the domestic water tap (6).

7. The water supply equipment according to claim 6, characterized in that The second connecting pipeline (122) is provided with a first check valve (1221), and the first check valve (1221) is used for one-way conduction of the first connecting pipeline (121) to the set temperature domestic water inlet and the cold water inlet of the domestic water faucet (6).

8. The water supply equipment according to claim 5, characterized in that The purified water pipeline (3) further comprises a third purified water branch pipeline (35), the third purified water branch pipeline (35) being used to connect the other end of the purified water front-end pipeline (31) and the first connecting pipeline (121), and the third purified water branch pipeline (35) being provided with a pressure relief check valve (351), the pressure relief check valve (351) being used for one-way conduction from the purified water front-end pipeline (31) to the first connecting pipeline (121); A first solenoid valve (1211) is also provided on the first connecting pipeline (121), and the first solenoid valve (1211) is located between a first connecting point between the second connecting pipeline (122) and the first connecting pipeline (121) and a second connecting point between the third purified water branch pipeline (35) and the first connecting pipeline (121).

9. The water supply equipment according to any one of claims 1 to 8, characterized in that: A second check valve (331) is provided on the second purified water branch pipeline (33), and the second check valve (331) is used for one-way conduction from the purified water front pipeline (31) to the purified water rear pipeline (34).

10. The water supply equipment according to any one of claims 1 to 8, characterized in that: A heating wire (211) is provided in the hot tank (21), and the heat exchange pipeline (22) is arranged around the heating wire (211).

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