Adjustable water mixing type kitchen under clean heat all-in-one machine

Abstract

The utility model discloses an adjustable mix water formula kitchen under pure heat all -in -one has water route system, and water route system includes inlet water route, mix water box, hot water route and normal temperature water route, and inlet water route is equipped with flow regulating device, and mix water box is equipped with water temperature sensing element, and hot water route is connected between the first water outlet end of inlet water route and the water inlet end of mix water box, and hot water route is equipped with first solenoid valve, hot gallbladder and the speed regulation centrifugal pump that are connected to hot gallbladder water outlet end, and normal temperature water route is connected between the second water outlet end of inlet water route and the water inlet end of mix water box, and normal temperature water route is equipped with second solenoid valve, and flow regulating device and speed regulation centrifugal pump cooperate and adjust the cold and hot water amount in mix water box. Have the effect that the diversity of water use selection is improved to multiple mode water outlet, and the outlet temperature water temperature is more constant.

Description

Technical Field

[0001] This utility model relates to the technical field of under-sink water purifier and heater, and in particular to an adjustable mixing type under-sink water purifier and heater. Background Technology

[0002] A Chinese patent with publication number CN213841323U discloses a water heating system, which includes a first pipeline and a second pipeline. The first pipeline is used to connect to the cold water output port of the water output mechanism. The second pipeline has an instant heating module and a water storage device connected to the outlet of the instant heating module. The outlet of the second pipeline is used to connect to the hot water output port of the water output mechanism.

[0003] However, the above-mentioned water heating system has the following drawbacks: This water heating system can produce hot water and room temperature water, but with the improvement of people's living standards, ordinary water purifiers can no longer meet people's water needs. More and more users not only need to be able to get room temperature water and hot water, but sometimes also need to use warm water directly, such as washing hands or washing dishes in winter. Therefore, some under-sink water purifiers and heaters in the existing technology have the function of directly dispensing warm water. These under-sink water purifiers and heaters with the function of dispensing warm water can set the water temperature when in use, but the actual water temperature is difficult to keep constant, and the water temperature is prone to fluctuating. It is urgent to improve this. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable mixing-type under-sink water purifier and heater, which has multiple water output modes to increase the diversity of water selection and provides a more constant water temperature.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an adjustable mixing-type under-sink water purifier and heater, characterized in that it includes the following water system: The water inlet is equipped with a flow regulation device; The mixing box is equipped with a water outlet temperature sensing element; A hot water circuit is connected between the first outlet end of the inlet water circuit and the inlet end of the mixing box. The hot water circuit is equipped with a first solenoid valve, a heating element, and a speed-regulating centrifugal pump connected to the outlet end of the heating element. A normal temperature water circuit is connected between the second outlet of the inlet water circuit and the inlet of the mixing box, and the normal temperature water circuit is equipped with a second solenoid valve; The flow regulating device works in conjunction with the speed-regulating centrifugal pump to regulate the amount of hot and cold water in the mixing box.

[0006] By adopting the above technical solution, when room temperature water is needed, the first solenoid valve is closed and the second solenoid valve is opened, allowing water to flow from the mixing box after passing through the inlet water path and the room temperature water path. When hot water is needed, the second solenoid valve is closed and the first solenoid valve is opened, allowing water to flow through the inlet water path to the room temperature water path, then be heated by the heating element and pumped to the mixing box by the speed-regulating centrifugal pump. When warm water is needed, the outlet water temperature is first set, and both the first and second solenoid valves are opened. A portion of the water in the inlet water path flows to the hot water path for heating and hot water preparation, while the other portion flows to the room temperature water path, and finally mixes in the mixing box to form warm water for use. When the outlet water temperature is higher than the set temperature, the opening of the flow regulating device is increased to increase the inlet water flow, thereby increasing the outlet water flow of the room temperature water path and reducing the mixing temperature. When the flow rate regulator is adjusted to the maximum outlet flow rate, if the outlet water temperature is still higher than the set temperature, the speed of the variable-speed centrifugal pump is reduced, thereby reducing the hot water flow from the hot water pump to the heating tank until the outlet water temperature drops to the set temperature. When the outlet water temperature is lower than the set temperature, the opening of the flow rate regulator is reduced, thereby reducing the inlet water flow and decreasing the outlet water flow of the normal temperature water path, which in turn raises the water temperature in the mixing tank. When the flow rate regulator is adjusted to the minimum outlet flow rate, if the outlet water temperature is still lower than the set temperature, the speed of the variable-speed centrifugal pump is increased, thereby increasing the hot water flow from the hot water pump to the heating tank until the outlet water temperature rises to the set temperature. This ensures a constant water temperature when outlet water is dispensed, providing multiple water dispensing modes to increase the diversity of water usage options and ensuring a more constant outlet water temperature.

[0007] A further feature of this invention is that the hot water circuit is equipped with a first check valve, which is connected downstream of the variable speed centrifugal pump.

[0008] By adopting the above technical solution, the first check valve is used to prevent water in the mixing box from flowing back into the heating tank.

[0009] A further feature of this invention is that the outlet of the mixing box is connected to a faucet with a steam discharge function, and a steam discharge pipe is connected between the top of the heating element and the faucet.

[0010] By adopting the above technical solution, the steam discharge pipeline can discharge the high-pressure steam in the heating tank to the faucet for release, preventing the steam pressure in the heating tank from becoming too high.

[0011] A further feature of this invention is that the water inlet path is provided with a water inlet temperature sensing element and a flow meter, and the flow regulating device is connected between the water inlet temperature sensing element and the flow meter.

[0012] By adopting the above technical solution, the inlet water temperature sensing element is used to detect the water temperature in the inlet water circuit, and the flow meter is used to detect the inlet water flow rate in the inlet water circuit.

[0013] A further feature of this invention is that the water inlet path is equipped with a composite filter element and a booster pump connected to the water inlet end of the composite filter element.

[0014] By adopting the above technical solution, the booster pump can pump the water source upstream of the water inlet into the composite filter element for filtration.

[0015] A further feature of this invention is that the composite filter element has a purified water outlet pipe and a concentrated water outlet pipe, and the concentrated water outlet pipe is equipped with a flushing solenoid valve.

[0016] A further feature of this invention is that a return water pipe is branched onto the purified water outlet pipe, and the outlet end of the return water pipe flows back to the inlet end of the booster pump.

[0017] By adopting the above technical solution, when the equipment is pre-started, the stagnant water in the purified water outlet pipe will return to the composite filter element for filtration through the return water pipe, so that the discharged water source always maintains a low TDS value, thereby achieving the goal of zero stagnant water.

[0018] A further feature of this invention is that a second check valve is provided on the return water pipeline, which is used to prevent water from the inlet of the booster pump from flowing through the return water pipeline to the hot water circuit or the room temperature water circuit.

[0019] A further feature of this invention is that the inlet end of the booster pump is connected to an inlet solenoid valve, the inlet end of the inlet solenoid valve is connected to a three-way ball valve, and the three-way ball valve is equipped with a stainless steel filter screen.

[0020] By adopting the above technical solution, stainless steel filter screens can perform preliminary filtration of raw water in three-way ball valves, removing larger particles from the raw water.

[0021] A further feature of this invention is that the flow regulating device is configured as a flow regulating valve or a flow control pump.

[0022] In summary, this utility model has the following beneficial effects: A flow regulation device is installed in the inlet water path. The downstream of the inlet water path splits into two branches: one for hot water and the other for ambient temperature water. The hot water path is equipped with a first solenoid valve, a heating element, and a variable-speed centrifugal pump connected to the outlet of the heating element. The ambient temperature water path is equipped with a second solenoid valve. The downstream water from both paths converges into a mixing box, which is equipped with an outlet temperature sensing element. When ambient temperature water is needed, the first solenoid valve closes, the second solenoid valve opens, and the water source flows through the inlet water path. Water flows from the inlet water path and the ambient temperature water path, then exits through the mixing box. When hot water is needed, the second solenoid valve closes and the first solenoid valve opens, allowing water to flow through the inlet water path to the ambient temperature water path. After being heated by the heating element, the water is pumped to the mixing box by a speed-regulating centrifugal pump. When warm water is needed, the outlet water temperature is set, and both the first and second solenoid valves open. A portion of the water in the inlet water path flows to the hot water path for heating, while the remaining water flows to the ambient temperature water path, ultimately mixing in the mixing box to form hot water. The system provides warm water for use. When the outlet water temperature is higher than the set temperature, the flow rate is increased by adjusting the opening of the flow regulating device, thereby increasing the outlet water flow of the room temperature water path and lowering the water temperature in the mixing box. If the outlet water temperature is still higher than the set temperature after the flow regulating device is adjusted to the maximum outlet water flow, the speed of the variable speed centrifugal pump is reduced, thereby reducing the hot water flow from the hot water pump to the heating tank until the outlet water temperature drops to the set temperature. When the outlet water temperature is lower than the set temperature, the flow rate is reduced by adjusting the opening of the flow regulating device, thereby reducing the outlet water flow of the room temperature water path and raising the water temperature in the mixing box. If the outlet water temperature is still lower than the set temperature after the flow regulating device is adjusted to the minimum outlet water flow, the speed of the variable speed centrifugal pump is increased, thereby increasing the hot water flow from the hot water pump to the heating tank until the outlet water temperature rises to the set temperature. This ensures a constant water temperature when outlet water is dispensed, providing multiple water dispensing modes to increase the variety of water usage options and ensuring a more constant outlet water temperature. Attached Figure Description

[0023] Figure 1 This is a waterway structure diagram of a specific embodiment of this utility model.

[0024] Figure 2 This is a waterway structure diagram of a specific embodiment of this utility model.

[0025] In the diagram: 1. Inlet water circuit; 11. Three-way ball valve; 12. Inlet solenoid valve; 13. Booster pump; 14. Composite filter element; 141. Clean water outlet pipe; 142. Concentrated water outlet pipe; 1421. Flushing solenoid valve; 15. Return water circuit; 151. Second check valve; 16. Inlet water temperature sensor; 171. Flow regulating valve; 172. Flow control pump; 18. Flow meter; 2. Hot water circuit; 21. First solenoid valve; 22. Heating tank; 221. Steam discharge pipe; 23. Speed-regulating centrifugal pump; 24. First check valve; 3. Normal temperature water circuit; 31. Second solenoid valve; 4. Mixing box; 41. Outlet water temperature sensor; 5. Faucet. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings. Specific Implementation Example 1 An adjustable mixing-type under-sink water purifier and heater, featuring... Figure 1 The water system shown includes an inlet water path 1, a mixing box 4, a hot water path 2, and a room temperature water path 3. The inlet water path 1 is equipped with a flow regulating device, which in this embodiment is a flow regulating valve 171. The mixing box 4 is equipped with an outlet temperature sensing element 41. The hot water path 2 is connected between the first outlet of the inlet water path 1 and the inlet of the mixing box 4. The hot water path 2 is equipped with a first solenoid valve 21, a heating element 22, and a speed-regulating centrifugal pump 23 connected to the outlet of the heating element 22. In this embodiment, the speed-regulating centrifugal pump 23 is a PWM speed-regulating centrifugal pump. The room temperature water path 3 is connected between the second outlet of the inlet water path 1 and the inlet of the mixing box 4. The room temperature water path 3 is equipped with a second solenoid valve 31. The flow regulating valve 171 and the speed-regulating centrifugal pump 23 work together to regulate the amount of hot and cold water in the mixing box 4.

[0028] like Figure 1 As shown, the hot water circuit 2 is equipped with a first check valve 24, which is connected downstream of the PWM speed-regulating centrifugal pump. The first check valve 24 is used to prevent water in the mixing box 4 from flowing back into the heating tank 22. The outlet of the mixing box 4 is connected to a faucet 5 with a steam discharge function. A steam discharge pipe 221 is connected between the top of the heating tank 22 and the faucet 5. The steam discharge pipe 221 can discharge the high-pressure steam in the heating tank 22 to the faucet 5 for release, preventing the steam pressure in the heating tank 22 from being too high. The inlet water circuit 1 is equipped with an inlet water temperature sensing element 16 and a flow meter 18. A flow regulating valve 171 is connected between the inlet water temperature sensing element 16 and the flow meter 18. The inlet water temperature sensing element 16 is used to detect the water temperature in the inlet water circuit 1, and the flow meter 18 is used to detect the inlet water flow rate in the inlet water circuit 1.

[0029] like Figure 1As shown, the water inlet channel 1 is equipped with a composite filter element 14 and a booster pump 13 connected to the water inlet end of the composite filter element 14. The booster pump 13 can pump the water source upstream of the water inlet channel 1 into the composite filter element 14 for filtration. The composite filter element 14 has a clean water outlet pipe 141 and a concentrated water outlet pipe 142. A flushing solenoid valve 1421 is provided on the concentrated water outlet pipe 142. A return water pipe 15 is branched onto the clean water outlet pipe 141, and the outlet end of the return water pipe 15 returns to the source water outlet. When the equipment is pre-started, the stagnant water in the purified water outlet pipe 141 will return to the composite filter element 14 for filtration through the return water pipe 15, so that the discharged water source always maintains a low TDS value, thereby achieving the purpose of zero stagnant water. The return water pipe 15 is equipped with a second check valve 151, which is used to prevent the water at the inlet of the booster pump 13 from flowing to the hot water pipe 2 or the normal temperature water pipe 3 through the return water pipe 15.

[0030] like Figure 1 As shown, the inlet end of the booster pump 13 is connected to an inlet solenoid valve 12; the inlet end of the inlet solenoid valve 12 is connected to a three-way ball valve 11, which is equipped with a stainless steel filter screen. The stainless steel filter screen can perform preliminary filtration on the raw water in the three-way ball valve 11 to remove larger particles from the raw water. In some other embodiments, the inlet temperature sensing element 16 and the outlet temperature sensing element 41 can be electrically connected to the mixing control system. The mixing control system calculates the temperature difference between the water temperature of the outlet temperature sensing element 41 and the set outlet temperature, thereby providing feedback to adjust the opening of the flow regulating valve 171 and the speed of the PWM speed-regulating centrifugal pump. In addition, the mixing control system can also adjust the initial opening of the flow regulating valve 171 and the initial speed of the PWM speed-regulating centrifugal pump by capturing the inlet signal detected by the inlet temperature sensing element 16 and the flow meter 18.

[0031] The basic working principle of this utility model is as follows: A flow regulating device is installed in the water inlet channel 1. The downstream of the water inlet channel 1 is divided into two branches, one of which is a hot water channel 2, and the other is a room temperature water channel 3. The hot water channel 2 is equipped with a first solenoid valve 21, a heating element 22, and a PWM speed-regulating centrifugal pump connected to the outlet of the heating element 22. The room temperature water channel 3 is equipped with a second solenoid valve 31. The downstream of the hot water channel 2 and the room temperature water channel 3 converge into a mixing box 4. The mixing box 4 is equipped with an outlet temperature sensing element 41. When room temperature water is required, the first solenoid valve... When solenoid valve 21 is closed and solenoid valve 31 is opened, water flows from the inlet water passage 1 and the ambient temperature water passage 3, exiting from the mixing box 4. When hot water is needed, solenoid valve 31 is closed and solenoid valve 21 is opened, allowing water to flow from the inlet water passage 1 to the ambient temperature water passage 3. After being heated by the heating element 22, the water is pumped to the mixing box 4 by the PWM speed-controlled centrifugal pump. When warm water is needed, the outlet water temperature is set, and both solenoid valves 21 and 31 are opened. A portion of the water in the inlet water passage 1 flows to the hot water passage 2 for heating and preparation of hot water, while the other portion... The water source flows to the ambient temperature water path 3, and finally mixes in the mixing box 4 to form warm water for use. When the outlet water temperature is higher than the set temperature, the opening of the flow regulating device is increased to increase the inlet water flow, thereby increasing the outlet water flow of the ambient temperature water path 3 and lowering the water temperature in the mixing box 4. If the outlet water temperature is still higher than the set temperature after the flow regulating device is adjusted to the maximum outlet water flow, the speed of the PWM speed-regulating centrifugal pump is reduced to decrease the hot water flow from the hot water pump to the heating tank 22 until the outlet water temperature drops to the set temperature. When the outlet water temperature is lower than the set temperature... When the temperature is adjusted, the opening of the flow regulating device is reduced to decrease the inlet water flow, thereby reducing the outlet water flow of the normal temperature water circuit 3, which in turn increases the water temperature in the mixing box 4. If the outlet water temperature is still lower than the set temperature after the flow regulating device is adjusted to the minimum outlet water flow, the speed of the PWM speed-regulating centrifugal pump is increased to increase the hot water flow from the hot water pump to the heating tank 22 until the outlet water temperature rises to the set temperature, thus ensuring that the water temperature is constant when the hot water is dispensed. This has the effect of multi-mode water dispensing, which improves the diversity of water selection and makes the outlet water temperature more constant. Specific Implementation Example 2 An adjustable mixing-type under-sink water purifier and heater, featuring... Figure 2 The water system shown in this embodiment differs from the first embodiment in that the flow regulation device in this embodiment is a flow control pump 172. The other structures in this embodiment are the same as those in the first embodiment, and will not be described again here.

[0033] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An adjustable mixing-type under-sink water purifier and heater, characterized in that, Including the following water system: The water inlet channel (1) is equipped with a flow regulation device; The mixing box (4) is equipped with a water outlet temperature sensing element (41); Hot water circuit (2) is connected between the first outlet end of the water inlet circuit (1) and the inlet end of the mixing box (4). The hot water circuit (2) is equipped with a first solenoid valve (21), a heating element (22) and a speed-regulating centrifugal pump (23) connected to the outlet end of the heating element (22). A normal temperature water circuit (3) is connected between the second outlet of the water inlet circuit (1) and the inlet of the mixing box (4). The normal temperature water circuit (3) is equipped with a second solenoid valve (31). The flow regulating device works in conjunction with the speed-regulating centrifugal pump (23) to regulate the amount of hot and cold water in the mixing box (4).

2. The adjustable mixing-type under-sink water purifier and heater according to claim 1, characterized in that: The hot water circuit (2) is equipped with a first check valve (24), which is connected downstream of the speed-regulating centrifugal pump (23).

3. The adjustable mixing-type under-sink water purifier and heater according to claim 1, characterized in that: The outlet of the mixing box (4) is connected to a faucet (5) with a steam discharge function, and a steam discharge pipe (221) is connected between the top of the heating element (22) and the faucet (5).

4. An adjustable mixing-type under-sink water purifier and heater as described in claim 1, characterized in that: The water inlet channel (1) is equipped with a water inlet temperature sensing element (16) and a flow meter (18), and the flow regulating device is connected between the water inlet temperature sensing element (16) and the flow meter (18).

5. An adjustable mixing-type under-sink water purifier and heater as described in claim 1, characterized in that: The water inlet channel (1) is equipped with a composite filter element (14) and a booster pump (13) connected to the water inlet end of the composite filter element (14).

6. An adjustable mixing-type under-sink water purifier and heater as described in claim 5, characterized in that: The composite filter element (14) has a clean water outlet pipe (141) and a concentrated water outlet pipe (142), and the concentrated water outlet pipe (142) is equipped with a flushing solenoid valve (1421).

7. An adjustable mixing-type under-sink water purifier and heater as described in claim 6, characterized in that: A return water pipe (15) is branched onto the purified water outlet pipe (141), and the water outlet of the return water pipe (15) flows back to the water inlet of the booster pump (13).

8. An adjustable mixing-type under-sink water purifier and heater as described in claim 7, characterized in that: The return water pipe (15) is provided with a second check valve (151), which is used to prevent the water at the inlet of the booster pump (13) from flowing through the return water pipe (15) to the hot water pipe (2) or the normal temperature water pipe (3).

9. An adjustable mixing-type under-sink water purifier and heater as described in claim 5, characterized in that: The booster pump (13) is connected to an inlet solenoid valve (12) at its inlet end. The inlet end of the inlet solenoid valve (12) is connected to a three-way ball valve (11). The three-way ball valve (11) is equipped with a stainless steel filter screen.

10. An adjustable mixing-type under-sink water purifier and heater as described in claim 1, characterized in that: The flow regulating device is configured as a flow regulating valve (171) or a flow control pump (172).

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