A control method of a water purifier with an extension port and the water purifier

Abstract

A water purifier control method with an extension port and a water purifier, characterized in that a normally open extension electromagnetic valve is arranged on the extension port of the water purifier, and the method comprises the following steps: 1, initialization setting; 2, standby state; 3, a first flowmeter detects whether there is flow data display in the normal temperature water circuit, if yes, step 4; if no, step 7; 4, the extension electromagnetic valve is turned on, and the extension port water circuit is closed; 5, a second flowmeter detects whether there is flow data display in the water supplement circuit, if yes, step 6; if no, step 3; 6, the water supplement circuit is closed, and the process returns to step 3; 7, the second flowmeter detects whether there is flow data display in the water supplement circuit, if yes, step 8; if no, step 2; 8, the extension electromagnetic valve is turned on, the extension port water circuit is closed, and the process returns to step 3. The method has the advantages that the priority of the extension water outlet and the water supplement action is reduced by optimizing the water circuit control, the normal temperature water outlet is ensured to be sufficient, and the problem of unstable normal temperature water outlet is solved.

Description

Technical Field

[0001] This invention relates to a water purifier device, and more particularly to a water purifier control method with a sub-port and the water purifier thereof. Background Technology

[0002] In existing technology, commercial water purifiers on the market generally have a separate outlet, and the working water circuit is as follows: Figure 3 As shown, a pressure tank is equipped in the working water circuit of a commercial water purifier to store water in advance, and the water source is delivered to the sub-unit through the sub-unit port.

[0003] Generally, the flow rate of purified water is equal to that of room temperature water. Therefore, designers typically design the outlet diameter based on the room temperature water flow rate to ensure a good water pattern during use. However, when using room temperature water normally, if the secondary unit is also turned on at the same time (i.e., water is being replenished through the secondary unit's outlet), the water in the pressure tank will be consumed faster than normal. This is because the purified water flow is diverted by the secondary unit's water path, resulting in a very low room temperature water flow rate, which can lead to inconsistent water patterns or even flow interruptions.

[0004] In response to the aforementioned problems with current water purifier products, and to prevent the purified water flow from being diverted by the water circuit of the distributor port and to ensure a sufficient supply of room temperature water, further improvements and refinements are needed in the water circuit design and control methods of water purifiers. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a water purifier control method with a separate inlet that can effectively ensure a sufficient supply of room temperature water in light of the above-mentioned existing technology. This control method can prevent water pattern fluctuations and flow interruptions during the use of room temperature water.

[0006] The second technical problem to be solved by the present invention is to provide a water purifier that operates using the above-mentioned water purifier control method, in view of the current state of the prior art.

[0007] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a control method for a water purifier with a branch port, characterized in that a normally open branch solenoid valve is provided on the branch port of the water purifier, and the control method of the water purifier includes the following steps:

[0008] Step 1: Start the program and initialize settings;

[0009] Step 2: The water purifier is in standby mode;

[0010] Step 3: The first flow meter checks if there is flow data displayed in the outlet water path of the room temperature water. If yes, proceed to the next step, Step 4; otherwise, proceed to Step 7.

[0011] Step 4: The solenoid valve of the sub-unit is energized and turned on, and the water circuit of the sub-unit of the water purifier is closed;

[0012] Step 5: The second flow meter checks whether there is flow data displayed in the water supply path of the heating tank used for hot water preheating. If yes, proceed to the next step, Step 6; otherwise, return to Step 3.

[0013] Step 6: Close the water supply line to the heating tank, then return to Step 3;

[0014] Step 7: The second flow meter checks whether there is flow data in the water supply path of the heating tank. If yes, proceed to the next step, Step 8; otherwise, return to Step 2.

[0015] Step 8: The solenoid valve of the sub-unit is energized and turned on, the water circuit of the sub-unit of the water purifier is closed, and the process returns to step 3.

[0016] To facilitate control of the ambient temperature water switch and improve the accuracy of flow detection, as a further preferred option, an ambient temperature water solenoid valve is installed on the outlet water line of the ambient temperature water, and the first flow meter is installed between the ambient temperature water outlet and the ambient temperature water solenoid valve.

[0017] To facilitate control of the water supply path to the heating tank and improve the accuracy of flow detection, as a further preferred embodiment, a water supply solenoid valve is provided on the water supply path to the heating tank, and the second flow meter is located between the heating tank and the water supply solenoid valve.

[0018] To ensure the stability of the room temperature water flow during use, preferably, a room temperature water solenoid valve is installed on the outlet water line of the room temperature water system, and a water supply solenoid valve is installed on the water supply line of the heating tank. The priority order of the operation commands of the solenoid valves of the distribution unit, the water supply solenoid valve, and the room temperature water solenoid valve is: room temperature water solenoid valve > water supply solenoid valve > distribution unit solenoid valve. By setting the priority of the three application water states, it can be ensured that a sufficient supply of room temperature water is provided during use, and the flow will not be diverted by the distribution unit or the water supply heating tank, thus preventing the phenomenon of fluctuating water flow or water interruption during use.

[0019] To ensure the normal operation of the water purifier, preferably, in the standby state, the solenoid valve of the sub-unit is in the normally open state, and the heating tank detects the liquid level in the heating tank through a water level detection device, and controls the opening and closing of the water supply circuit of the heating tank.

[0020] To better monitor the water level in the heating tank and ensure timely water replenishment, the heating tank preferably employs the following method for liquid level monitoring and water replenishment control:

[0021] ① The water level detection device detects whether the liquid level in the heating tank has dropped to the set first water level. If so, the water replenishment solenoid valve is turned on, the heating tank is replenished with water, and step ② continues; if not, the water replenishment solenoid valve remains closed, and this step is repeated.

[0022] ② The water level detection device checks whether the liquid level in the heating tank has reached the preset second water level. If so, the water replenishment solenoid valve is closed, and water replenishment is completed; if not, this step is repeated.

[0023] The technical solution adopted by the present invention to solve the second technical problem mentioned above is as follows: a water purifier, comprising a water path formed by an inlet, a purification device and an outlet, wherein the water path of the water purifier is further provided with a sub-port for supplying water to a sub-unit, characterized in that: the water path control of the water purifier is implemented by the water purifier control method with sub-port as described above.

[0024] Preferably, the water outlet includes a hot water outlet and a normal temperature water outlet. The purification device includes a pre-filter, an inlet solenoid valve, a booster pump, and a post-filter connected in sequence by pipelines. The inlet is connected to the inlet of the pre-filter. The first path of the post-filter is connected to the normal temperature water outlet via an ultraviolet lamp, a normal temperature water solenoid valve, and a first flow meter. The second path is connected to the hot water outlet via a water replenishment solenoid valve, a second flow meter, a heating tank, and a hot water solenoid valve.

[0025] As a further preferred embodiment, the outlet also includes a concentrate drain outlet, and an RO filter element is provided between the booster pump and the post-filter element. The RO filter element is connected to the concentrate drain outlet via a concentrate solenoid valve.

[0026] As a further preferred embodiment, the outlet also includes a wastewater drain outlet, with one outlet of the heating tank connected to the hot water outlet via a hot water solenoid valve and the other connected to the wastewater drain outlet via a drain solenoid valve.

[0027] Compared with the prior art, the advantages of this invention are as follows: By adding a normally open branch solenoid valve to the water circuit of the branch outlet, when room temperature water is not dispensed, the water purifier is in standby mode, the branch circuit is open, and water can flow from the branch outlet to the branch unit; when room temperature water is dispensed, the branch circuit is closed, and the water flow will not be diverted by the branch unit, ensuring a sufficient supply of room temperature water; at the same time, by controlling the water replenishment solenoid valve, the priority of water replenishment is reduced, prioritizing the use of room temperature water. By optimizing the water circuit control, the problem of unstable room temperature water output during the simultaneous use of multiple water circuits is solved. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the water circuit structure of a water purifier according to an embodiment of the present invention.

[0029] Figure 2This is a flowchart of the water circuit control method for a water purifier according to an embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the water circuit structure of a water purifier with a separate outlet in the existing technology. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] like Figure 1 As shown in the figure, this embodiment discloses a water purifier with a separate outlet, which includes a water path formed by an inlet, a purification device and an outlet.

[0033] Specifically, the water outlet includes a hot water outlet, a normal temperature water outlet, a concentrated water outlet, and a wastewater outlet. The purification device includes a pre-filter, an inlet solenoid valve, a booster pump, an RO filter, and a post-filter connected in sequence. The RO filter is connected to the concentrated water outlet after passing through the concentrated water solenoid valve and the first check valve. The water outlet of the post-filter is connected to a second check valve, a pressure tank, and a high-pressure switch. The pressure tank is connected to the inter-unit port after passing through a normally open inter-unit solenoid valve. The water outlet of the post-filter is also provided with a normal temperature water outlet, a wastewater outlet, and a hot water outlet in sequence.

[0034] The system includes a room temperature water circuit consisting of an ultraviolet lamp, a room temperature water solenoid valve, and a first flow meter connected in series after passing through a high-pressure switch, and finally connected to the room temperature water outlet. The wastewater discharge circuit also includes a water replenishment circuit consisting of a water replenishment solenoid valve, a second flow meter, and a heating tank connected in series after passing through a high-pressure switch. The heating tank is equipped with a water level switch to sense the amount of water inside, and a temperature sensor to sense the temperature inside the heating tank. One outlet of the heating tank is connected to the wastewater discharge outlet via a drain solenoid valve, thus forming the wastewater discharge circuit. The other outlet of the heating tank is connected to the hot water outlet via a hot water solenoid valve, thus forming the hot water outlet circuit.

[0035] The functions of other devices in the water circuit of the water purifier in this embodiment are described below:

[0036] 1. Pre-filter: Used to perform preliminary coarse filtration of water source.

[0037] 2. Inlet solenoid valve: controls the inlet water of the main water purification system.

[0038] 3. Booster pump: pressurizes the water source and works with the RO filter to achieve the core filtration function.

[0039] 4. RO filter cartridge: performs core fine filtration of the water source.

[0040] 5. Concentrate solenoid valve: When the concentrate solenoid valve is de-energized and partially open, it can discharge the concentrate from the RO filter element; when the concentrate solenoid valve is energized and fully open, it can flush the purified water pipeline.

[0041] 6. First check valve: Prevents backflow of water from the sewer.

[0042] 7. Post-filter: Improves the taste of the purified water after being filtered by the RO filter.

[0043] 8. Second check valve: Its main function is to prevent water backflow. If the water circuit does not have this second check valve, the pressure tank will push the water that originally passed through the post-filter back to the post-filter and RO filter and discharge it from the concentrated water solenoid valve, which will cause the water circuit to depressurize. This will cause the high-pressure switch to start frequently, resulting in the water purification system starting and stopping erroneously.

[0044] 9. Sub-unit solenoid valve: Located on the water line of the sub-unit inlet, unlike ordinary solenoid valves, it is a normally open solenoid valve. When the sub-unit solenoid valve is de-energized, water can flow through the sub-unit inlet; when energized, it can cut off the water flow to the sub-unit inlet, thereby cutting off the water flow to the sub-unit inlet.

[0045] 10. Pressure tank: Used to store purified water and provide pressure to make the water flow.

[0046] 11. High-pressure switch: It controls the on / off state of the inlet solenoid valve and booster pump by sensing the water pressure.

[0047] 12. Ultraviolet lamp: Sterilizes water at room temperature.

[0048] 13. Normal temperature solenoid valve: controls the output of normal temperature water.

[0049] 14. Water supply solenoid valve: When the water level switch is in the low water level position, the water supply solenoid valve is energized to supply water to the heating tank. When the water level in the heating tank reaches the high water level, the water supply solenoid valve is de-energized and water supply stops.

[0050] 16. Heating tank: Used to heat the water in the heating tank to a predetermined temperature and to pre-store hot water.

[0051] 17. Drain solenoid valve: Drains water that has not been used for a long time from the heating tank.

[0052] 18. Hot water solenoid valve: controls the output of hot water.

[0053] Generally, users use room temperature water most frequently. To ensure a stable supply of room temperature water, such as... Figure 2 As shown, this embodiment uses the following control method to achieve water circuit control of the water purifier. The control method of the water purifier includes the following steps:

[0054] Step 1: Start the program and initialize settings.

[0055] Step 2: The water purifier is in standby mode. In standby mode, the solenoid valve of the unit is normally open. The heating tank detects the liquid level in the heating tank through a water level detection device and controls the opening and closing of the water supply circuit. The heating tank typically uses the following methods to monitor the liquid level and control water supply:

[0056] ① The water level detection device detects whether the liquid level in the heating tank has dropped to the set first water level. If so, the water replenishment solenoid valve is turned on, the heating tank is replenished with water, and step ② continues; if not, the water replenishment solenoid valve remains closed, and this step is repeated.

[0057] ② The water level detection device checks whether the liquid level in the heating tank has reached the preset second water level. If so, the water replenishment solenoid valve is closed, and water replenishment is completed; if not, this step is repeated.

[0058] Step 3: The first flow meter checks whether there is flow data displayed in the outlet water path of the room temperature water. If yes, proceed to the next step, Step 4; otherwise, proceed to Step 7.

[0059] Step 4: The solenoid valve of the sub-unit is energized and turned on, and the water circuit of the sub-unit of the water purifier is closed.

[0060] Step 5: The second flow meter checks whether there is flow data displayed in the water supply path of the heating tank used for hot water preheating. If yes, proceed to the next step, Step 6; otherwise, return to Step 3.

[0061] Step 6: Close the water supply line to the heating tank, and then return to Step 3.

[0062] Step 7: The second flow meter checks whether there is flow data displayed in the water supply path of the heating tank. If yes, proceed to the next step, Step 8; otherwise, return to Step 2.

[0063] Step 8: The solenoid valve of the sub-unit is energized and turned on, the water circuit of the sub-unit of the water purifier is closed, and the process returns to step 3.

[0064] This embodiment sets a priority order for the use of three water circuits: ambient temperature water outlet, water replenishment, and water outlet at the branch unit. Specifically, the priority order of the action commands of the branch unit solenoid valve, water replenishment solenoid valve, and ambient temperature water solenoid valve is: ambient temperature water solenoid valve > water replenishment solenoid valve > branch unit solenoid valve.

[0065] By adding a normally open solenoid valve to the water branch of the distributor port, when room temperature water is not flowing out, i.e. when the room temperature water solenoid valve is not energized, the water purifier is in standby mode, the distributor solenoid valve is not energized (i.e., it remains normally open), the distributor branch is open, and water can flow from the distributor port to the distributor. If the water level detection device detects that the heating tank needs to be replenished at this time, the water replenishment solenoid valve will be activated normally to replenish water.

[0066] However, when room temperature water is dispensed, i.e., when the room temperature water solenoid valve is energized, it is necessary to cut off the water output and water replenishment of the branch unit. This means that the branch unit solenoid valve needs to be energized while the water replenishment solenoid valve is closed. When the branch unit solenoid valve is energized and closed, the branch unit branch circuit is disconnected, cutting off the water flow at the branch unit outlet and preventing the water flow from the water purifier from being diverted by the water flow at the branch unit outlet. Meanwhile, the water replenishment solenoid valve is de-energized, preventing the water flow from the water purifier from being diverted by the water flow at the heating tank. This ensures a sufficient supply of room temperature water and prevents the water flow from fluctuating or even stopping during use, thus ensuring the stability of room temperature water use.

[0067] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A control method of a water purifier with an extension phone, characterized by, The water purifier is equipped with a normally open solenoid valve at the outlet, and the water purifier control method includes the following steps: Step 1: Start the program and initialize settings; Step 2: The water purifier is in standby mode; Step 3: The first flow meter checks if there is flow data displayed in the outlet water path of the room temperature water. If yes, proceed to the next step, Step 4; otherwise, proceed to Step 7. Step 4: The solenoid valve of the sub-unit is energized and turned on, and the water circuit of the sub-unit of the water purifier is closed; Step 5: The second flow meter checks whether there is flow data displayed in the water supply path of the heating tank used for hot water preheating. If yes, proceed to the next step, Step 6; otherwise, return to Step 3. Step 6: Close the water supply line to the heating tank, then return to Step 3; Step 7: The second flow meter checks whether there is flow data in the water supply path of the heating tank. If yes, proceed to the next step, Step 8; otherwise, return to Step 2. Step 8: The solenoid valve of the sub-unit is energized and turned on, the water circuit of the sub-unit of the water purifier is closed, and the process returns to step 3; A solenoid valve for ambient temperature water is installed on the outlet water line of the ambient temperature water, and a solenoid valve for water replenishment is installed on the water replenishment water line of the heating tank. The priority order of the action commands of the solenoid valve for the sub-unit, the solenoid valve for water replenishment, and the solenoid valve for ambient temperature water is: ambient temperature water solenoid valve > water replenishment solenoid valve > sub-unit solenoid valve.

2. The water purifier control method with a sub-port according to claim 1, characterized in that: The first flow meter is located between the ambient temperature water outlet and the ambient temperature water solenoid valve.

3. The water purifier control method with a sub-port according to claim 1, characterized in that: The second flow meter is located between the heating tank and the water supply solenoid valve.

4. The water purifier control method with a sub-port according to claim 1, characterized in that: When the water purifier is in standby mode, the solenoid valve of the sub-unit is in the normally open state, and the heating tank detects the liquid level in the heating tank through a water level detection device, and controls the opening and closing of the water supply circuit of the heating tank.

5. The water purifier control method with a sub-port according to claim 4, characterized in that: The heating tank achieves liquid level monitoring and water replenishment control through the following methods: ① The water level detection device detects whether the liquid level in the heating tank has dropped to the set first water level. If so, the water replenishment solenoid valve is turned on, the heating tank is replenished with water, and step ② continues; if not, the water replenishment solenoid valve remains closed, and this step is repeated. ② The water level detection device checks whether the liquid level in the heating tank has reached the preset second water level. If so, the water replenishment solenoid valve is closed, and water replenishment is completed; if not, this step is repeated.

6. A water purifier, comprising a water path formed by an inlet, a purification device, and an outlet, wherein the water path of the water purifier further includes an outlet for supplying water to a branch unit, characterized in that: The water circuit control of the water purifier is implemented using the water purifier control method with a sub-port as described in any one of claims 1 to 5.

7. The water purifier according to claim 6, characterized in that: The water outlet includes a hot water outlet and a normal temperature water outlet. The purification device includes a pre-filter, an inlet solenoid valve, a booster pump, and a post-filter connected in sequence by pipelines. The inlet is connected to the inlet of the pre-filter. The first path of the post-filter is connected to the normal temperature water outlet via an ultraviolet lamp, a normal temperature water solenoid valve, and a first flow meter. The second path is connected to the hot water outlet via a water replenishment solenoid valve, a second flow meter, a heating tank, and a hot water solenoid valve.

8. The water purifier according to claim 7, characterized in that: The outlet also includes a concentrate drain outlet. An RO filter element is installed between the booster pump and the post-filter element. The RO filter element is connected to the concentrate drain outlet via a concentrate solenoid valve.

9. The water purifier according to claim 6, characterized in that: The outlet also includes a wastewater drain outlet. One outlet of the heating tank is connected to the hot water outlet via a hot water solenoid valve, and the other outlet is connected to the wastewater drain outlet via a drain solenoid valve.

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