Water purification equipment and control method thereof

Abstract

The present application relates to a water purification device and a control method thereof, wherein the water purification device comprises: a purification module; a water outlet module is connected to the purification module; wherein the purification module comprises a filter membrane mechanism, a clean water flushing pipeline and a raw water supply pipeline, the raw water supply pipeline is connected to the filter membrane mechanism and is used to supply raw water, and the clean water flushing pipeline is respectively connected to the water outlet module and the raw water supply pipeline; the water purification device has at least two different water quality flushing modes, and the raw water supply pipeline and the clean water flushing pipeline can be selectively opened according to the corresponding water quality flushing mode. A control method for a water purification device comprises: when the purification module needs to be flushed, first starting the raw water flushing mode for flushing, and then starting the clean water flushing mode for flushing. The above-mentioned water purification device and its control method improve the situation where the total value of soluble solids in the first cup of water is too high, while effectively reducing the pollutant concentration of the filter membrane mechanism, with a better flushing effect and saving the amount of clean water used for flushing.

Description

Technical Field

[0001] The present application relates to the field of water purification technology, and in particular to a water purification device and a control method thereof. Background Art

[0002] In purification equipment, as water production increases, the concentration of pollutants in the purification module gradually increases, even causing scaling and severe blockage, leading to module failure. Currently, most flushing methods use raw water or purified water, but raw water flushing is ineffective. While purified water flushing is effective, it requires a large amount of water, resulting in waste. Summary of the Invention

[0003] Based on this, it is necessary to provide a water purification device and a control method thereof to address the problems that the raw water flushing effect of the water purification device is poor and a large amount of water is wasted in the purified water flushing.

[0004] A water purification device, comprising:

[0005] Purification module, used to filter raw water and output purified water;

[0006] a water outlet module, connected to the purification module and used to receive the purified water output by the purification module;

[0007] Among them, the purification module includes a filter membrane mechanism, a clean water flushing pipeline and a raw water supply pipeline. The raw water supply pipeline is connected to the filter membrane mechanism and is used to supply raw water. The clean water flushing pipeline is respectively connected to the water outlet module and the raw water supply pipeline; the water purification equipment has at least two different water quality flushing modes, and the raw water supply pipeline and the clean water flushing pipeline can be opened according to the corresponding water quality flushing mode.

[0008] When flushing the purification module, the above-mentioned water purification equipment can first start the raw water flushing mode and then start the clean water flushing mode, thereby improving the situation where the total value of dissolved solids in the first cup of water after the water purification equipment is shut down is too high, and at the same time effectively reduces the pollutant concentration in the filter membrane mechanism. The flushing effect is better and the amount of clean water used for flushing is saved, thereby extending the service life of the purification module.

[0009] In one embodiment, the water purification device has a raw water flushing mode and a clean water flushing mode, and the purification module further includes a first control valve provided on the raw water supply pipeline and a second control valve provided on the clean water flushing pipeline;

[0010] When the water purification equipment is in the raw water flushing mode, the first control valve is opened and the second control valve is closed, the raw water supply pipeline is opened and the clean water flushing pipeline is closed; when the water purification equipment is in the clean water flushing mode, the first control valve is closed and the second control valve is opened, the raw water supply pipeline is closed and the clean water flushing pipeline is opened.

[0011] In one embodiment, the purification module further includes a clean water supply pipeline, and the clean water supply pipeline is respectively connected to the filter membrane mechanism and the water outlet module.

[0012] In one embodiment, the water purification equipment further includes a first water storage mechanism and a second water storage mechanism, the first water storage mechanism is connected to the filter membrane mechanism through the raw water supply pipeline, and the filter membrane mechanism is connected to the second water storage mechanism through the purified water supply pipeline.

[0013] In one embodiment, the first water storage mechanism is provided with a first liquid level, a water replenishment level, and a water shortage level from top to bottom in the height direction, and the second water storage mechanism is provided with a second liquid level and a water production level from top to bottom in the height direction, and the purification equipment has a dual water quality flushing mode, wherein the dual water quality flushing mode first starts the raw water flushing mode for a flushing time T1 and then starts the purified water flushing mode for a flushing time T2;

[0014] When the first water storage mechanism is at the first liquid level and the second water storage mechanism is at the second liquid level, only the raw water flushing mode is activated;

[0015] When the first water storage mechanism is at the first liquid level and the second water storage mechanism is lower than the second liquid level, the raw water flushing mode is first activated for flushing, and then the water production mode is activated to produce water until the second water storage mechanism reaches the second liquid level, and then the dual-water quality flushing mode is activated, and then the water production mode is activated to produce water until the second water storage mechanism reaches the second liquid level;

[0016] When the first water storage mechanism is lower than the first liquid level and higher than the water replenishment level, and the second water storage mechanism is equal to or higher than the water production level, the dual water quality flushing mode is first activated, and then the water production mode is activated to produce water until the second water storage mechanism reaches the second liquid level;

[0017] When the second water storage mechanism is lower than the water production level, first start the water production mode to produce water until the second water storage mechanism reaches the second liquid level, and then start the dual water quality flushing mode;

[0018] When the first water storage mechanism reaches the water shortage level, the water production mode is stopped, the dual-water quality flushing mode is started, and the dual-water quality flushing mode is started again after the first water storage mechanism is replenished with water;

[0019] When the first water storage mechanism is at the water replenishment level or between the water replenishment level and the water shortage level, the water production mode and the dual water quality flushing mode are stopped, and the dual water quality flushing mode is started again after the first water storage mechanism is replenished with water.

[0020] In one embodiment, the first water storage mechanism further includes a partition, which divides the interior of the first water storage mechanism into a raw water chamber and a waste water chamber. The raw water supply pipeline is connected to the raw water chamber and the filter membrane mechanism respectively. The first liquid level, the water replenishment level and the water shortage level are set in the raw water chamber.

[0021] In one embodiment, the height of the partition is smaller than the height of the first water storage mechanism; when the liquid level of at least one of the raw water chamber and the waste water chamber is higher than the partition, the raw water chamber and the waste water chamber are connected to each other.

[0022] In one embodiment, the purification module further includes a wastewater pipeline and a third control valve. The wastewater pipeline is connected to the wastewater chamber and the filter membrane mechanism respectively, and the third control valve is arranged on the wastewater pipeline.

[0023] In one embodiment, the purification module further includes a booster pump, which is provided on the raw water supply pipeline and is located upstream of the filter membrane mechanism in the raw water flow direction.

[0024] A control method for the above-mentioned water purification equipment includes:

[0025] Detecting whether the purification module needs to be flushed;

[0026] When the purification module needs to be flushed, the raw water flushing mode is started first, and then the clean water flushing mode is started.

[0027] The control method of the above-mentioned water purification equipment, when flushing the purification module, first starts the raw water flushing mode for flushing, and then starts the clean water flushing mode for flushing, thereby improving the situation where the total value of dissolved solids in the first cup of water after the water purification equipment is shut down is too high, and at the same time effectively reduces the pollutant concentration of the filter membrane mechanism, has a better flushing effect and saves the amount of clean water used for flushing, thereby extending the service life of the purification module. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of a water purification device in one embodiment;

[0029] Figure 2 for Figure 1 Schematic diagram of the water purification device shown in the water production mode;

[0030] Figure 3 for Figure 1 Schematic diagram of the water purification equipment shown in the raw water flushing mode;

[0031] Figure 4 for Figure 1 Schematic diagram of the water purification device shown in the water purification flushing mode.

[0032] Reference numerals:

[0033] 100, purification module; 101, clean water flushing pipeline; 102, raw water supply pipeline; 103, clean water supply pipeline; 110, filter membrane mechanism; 120, first control valve; 130, second control valve; 140, first water storage mechanism; 141, raw water chamber; 142, wastewater chamber; 150, wastewater pipeline; 160, third control valve; 170, booster pump;

[0034] 200, water outlet module; 210, second water storage mechanism; 220, water intake; 230, purified water output pipeline; 240, water pump; 250, heating device; 260, steam return pipeline. DETAILED DESCRIPTION

[0035] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like 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 the present application and simplifying the description, and do not indicate or imply 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 the present application.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0038] In this application, unless otherwise specified or limited, the terms "initial," "connected," "connect," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0041] Please refer to Figure 1 In one embodiment, the water purification device includes a purification module 100 and a water outlet module 200 . The purification module 100 is used to filter raw water and output purified water. The water outlet module 200 is connected to the purification module 100 and is used to receive the purified water output by the purification module 100 .

[0042] Among them, the purification module 100 includes a filter membrane mechanism 110, a clean water flushing pipeline 101 and a raw water supply pipeline 102. The raw water supply pipeline 102 is connected to the filter membrane mechanism 110 and is used to supply raw water. The clean water flushing pipeline 101 is respectively connected to the water outlet module 200 and the raw water supply pipeline 102; the water purification equipment has at least two different water quality flushing modes, and the raw water supply pipeline 102 and the clean water flushing pipeline 101 can be opened according to the corresponding water quality flushing mode.

[0043] It should be noted that, in conjunction with the reference Figure 2When the water purification device is in water production mode, raw water flows through the raw water supply line 102 into the membrane filter mechanism 110. After being filtered by the membrane filter mechanism 110 and converted into purified water, the water outlet module 200 receives the purified water outputted by the membrane filter mechanism 110 for user use. After a period of use, the membrane filter mechanism 110 may become fouled and clogged. Therefore, the membrane filter mechanism 110 needs to be flushed to prevent filtration failure.

[0044] The above-mentioned water purification equipment, when flushing the purification module 100, can first start the raw water flushing mode for flushing, and then start the clean water flushing mode for flushing, thereby improving the situation where the total value of dissolved solids in the first cup of water after the water purification equipment is shut down is too high, and at the same time effectively reduces the pollutant concentration of the filter membrane mechanism 110, has a better flushing effect and saves the amount of clean water used for flushing, thereby extending the service life of the purification module 100.

[0045] In this embodiment, the filter membrane mechanism 110 is a reverse osmosis filter membrane or a nanofiltration membrane, which can filter impurities and particulate matter in the raw water.

[0046] Please refer to Figures 1 to 4 The water purification equipment has a raw water flushing mode and a clean water flushing mode. The purification module 100 further includes a first control valve 120 provided in the raw water supply pipeline 102 and a second control valve 130 provided in the clean water flushing pipeline 101.

[0047] Combined with reference Figure 3 When the water purification equipment is in the raw water flushing mode, the first control valve 120 is opened and the second control valve 130 is closed, the raw water supply pipeline 102 is opened and the purified water flushing pipeline 101 is closed; Figure 4 When the water purification equipment is in the purified water flushing mode, the first control valve 120 is closed and the second control valve 130 is opened, the raw water supply pipeline 102 is closed and the purified water flushing pipeline 101 is opened.

[0048] It is understood that when the water purification equipment is in the raw water flushing mode, the raw water supply pipeline 102 is opened and the clean water flushing pipeline 101 is closed, and the raw water flows through the raw water supply pipeline 102 to the membrane filter mechanism 110 to flush the membrane filter mechanism 110; when the water purification equipment is in the clean water flushing mode, the raw water supply pipeline 102 is closed and the clean water flushing pipeline 101 is opened, and the clean water flows through the clean water flushing pipeline 101 to the membrane filter mechanism 110 to flush the membrane filter mechanism 110. By providing corresponding control valves on the pipelines, the pipelines can be quickly opened and closed in different flushing modes.

[0049] In this embodiment, the first control valve 120 and the second control valve 130 are both solenoid valves. In other embodiments, the first control valve 120 and the second control valve 130 may also be other types of mechanical valves.

[0050] For further information, please refer to Figure 2 and Figure 1 The purification module 100 further includes a clean water supply pipeline 103 , which is respectively connected to the filter membrane mechanism 110 and the water outlet module 200 .

[0051] It can be understood that when the water purification equipment is in any water quality flushing mode, the filter membrane mechanism 110 will produce a small amount of clean water, the clean water supply pipeline 103 is opened, and the clean water flows into the water outlet module 200 through the clean water supply pipeline 103; when the water purification equipment is in the water production mode, the clean water supply pipeline 103 is opened, and the raw water flows into the filter membrane mechanism 110 through the raw water supply pipeline 102. After being filtered into clean water by the filter membrane mechanism 110, the clean water flows into the water outlet module 200 through the clean water supply pipeline 103.

[0052] Please refer to Figure 2 The water purification equipment also includes a first water storage mechanism 140 and a second water storage mechanism 210. The first water storage mechanism 140 is connected to the filter membrane mechanism 110 through the raw water supply pipeline 102, and the filter membrane mechanism 110 is connected to the second water storage mechanism 210 through the purified water supply pipeline 103.

[0053] Here, the first water storage mechanism 140 has a space for storing raw water. The raw water in the first water storage mechanism 140 can flow into the membrane filter mechanism 110 through the raw water supply line 102. The second water storage mechanism 210 has a space for storing purified water. The purified water output by the membrane filter mechanism 110 can flow into the second water storage mechanism 210 through the purified water supply line 103. This facilitates the storage and transportation of raw water and purified water.

[0054] In this embodiment, the first water storage mechanism 140 is a water tank, and the second water storage mechanism 210 is a kettle. The first water storage mechanism 140 and the second water storage mechanism 210 can be cylindrical or prismatic containers. The shapes of the first water storage mechanism 140 and the second water storage mechanism 210 are not specifically limited here.

[0055] Please refer to Figure 2 The first water storage mechanism 140 is provided with a first liquid level, a water replenishment level and a water shortage level from top to bottom in the height direction, and the second water storage mechanism 210 is provided with a second liquid level and a water production level from top to bottom in the height direction. The purification equipment has a dual water quality flushing mode. The dual water quality flushing mode first starts the raw water flushing mode for flushing time T1 and then starts the clean water flushing mode for flushing time T2.

[0056] When the first water storage mechanism 140 is at the first liquid level and the second water storage mechanism 210 is at the second liquid level, only the raw water flushing mode is activated;

[0057] When the first water storage mechanism 140 is at the first liquid level and the second water storage mechanism 210 is lower than the second liquid level, the raw water flushing mode is first activated for flushing, and then the water production mode is activated to produce water until the second water storage mechanism 210 reaches the second liquid level. Then, the dual water quality flushing mode is activated, and then the water production mode is activated to produce water until the second water storage mechanism 210 reaches the second liquid level.

[0058] When the first water storage mechanism 140 is lower than the first liquid level and higher than the water replenishment level, and the second water storage mechanism 210 is equal to or higher than the water production level, the dual water quality flushing mode is first activated, and then the water production mode is activated to produce water until the second water storage mechanism 210 reaches the second liquid level;

[0059] When the second water storage mechanism 210 is lower than the water level, the water production mode is first started to produce water until the second water storage mechanism 210 reaches the second level, and then the dual water quality flushing mode is started;

[0060] When the first water storage mechanism 140 is at a water shortage level, the water production mode is stopped and the dual water quality flushing mode is started. After the raw water chamber 141 is replenished with water, the dual water quality flushing mode is started again.

[0061] When the first water storage mechanism 140 is at the water replenishment level or between the water replenishment level and the water shortage level, the water production mode and the dual water quality flushing mode are stopped, and the dual water quality flushing mode is started again after the first water storage mechanism 140 is replenished with water.

[0062] Here, in the dual water quality flushing mode, the flushing time T1 of the raw water flushing mode is greater than the flushing time T2 of the clean water flushing mode.

[0063] It is understood that the first liquid level of the first water storage mechanism 140 is the maximum liquid level, and the second liquid level of the second water storage mechanism 210 is the maximum liquid level. When the first water storage mechanism 140 is at the first liquid level and the second water storage mechanism 210 is at the second liquid level, if the clean water flushing mode is activated at this time, the wastewater generated by the clean water flushing mode will flow into the first water storage mechanism 140, causing the raw water chamber 141 to overflow. Therefore, only the raw water flushing mode is activated;

[0064] When the first water storage mechanism 140 is at the first liquid level and the second water storage mechanism 210 is lower than the second liquid level, it means that there is sufficient raw water and less purified water. First, the raw water flushing mode is activated to flush the membrane mechanism 110 once, and then the water production mode is activated to produce purified water to a certain amount. Then, the dual water quality flushing mode is activated, and then the water production mode is activated to produce purified water to the second liquid level.

[0065] When the first water storage mechanism 140 is lower than the first liquid level and higher than the replenishing water level, and the second water storage mechanism 210 is equal to or higher than the water production level, it means that both raw water and purified water are sufficient. The dual water quality flushing mode is activated first, and then the water production mode is activated to produce purified water to the second liquid level.

[0066] When the second water storage mechanism 210 is lower than the water level, it means that the purified water is insufficient. The water production mode is first activated to produce purified water to the second level, and then the dual water quality flushing mode is activated.

[0067] When the first water storage mechanism 140 reaches the water shortage level, indicating that the raw water is insufficient, the water production mode is stopped and the dual-water quality flushing mode is activated for flushing once. While the water purification device is continuously running, the dual-water quality flushing mode is activated again after water is replenished. Here, the water replenishment level detection function is triggered only when the liquid level of the first water storage mechanism 140 drops to the water shortage level. When the water replacement and replenishment level are higher than the replenishment level, the above-mentioned cycle logic is repeated.

[0068] When the first water storage mechanism 140 is at the replenishing level or between the replenishing level and the water shortage level, the water production mode and the dual-water quality flushing mode are stopped, the system prompts to change the water, and the first water storage mechanism 140 is replenished with water until it is higher than the replenishing level before the dual-water quality flushing mode is started;

[0069] The detection function of liquid level 2 can be triggered only when the liquid level of the first water storage mechanism 140 drops to liquid level 3. When the water is replaced and replenished and is higher than liquid level 2, the logic is recirculated.

[0070] For details about the embodiment, please refer to Figure 2 The first water storage mechanism 140 also includes a partition, which divides the interior of the first water storage mechanism 140 into a raw water chamber 141 and a waste water chamber 142. The raw water supply pipeline 102 is respectively connected to the raw water chamber 141 and the filter membrane mechanism 110. The first liquid level, water replenishment level and water shortage level are set in the raw water chamber 141.

[0071] It should be noted that the raw water chamber 141 and the waste water chamber 142 may be connected or not connected.

[0072] Please refer to Figure 2 , the height of the partition is less than the height of the first water storage mechanism 140; when the liquid level of at least one of the raw water chamber 141 and the waste water chamber 142 is higher than the partition, the raw water chamber 141 and the waste water chamber 142 are connected to each other.

[0073] Here, the raw water chamber 141 and the waste water chamber 142 are separated by a partition. When the waste water flowing into the waste water chamber 142 exceeds the height of the partition, the waste water in the waste water chamber 142 will flow into the raw water chamber 141 and mix with the raw water, thereby recycling the waste water.

[0074] In this embodiment, the raw water chamber 141 and the waste water chamber 142 may be cylindrical, prismatic, or other shapes with one end open.

[0075] For further information, please refer to Figure 2The purification module 100 further includes a wastewater pipeline 150 and a third control valve 160 . The wastewater pipeline 150 is respectively connected to the wastewater chamber 142 and the filter membrane mechanism 110 . The third control valve 160 is disposed on the wastewater pipeline 150 .

[0076] It should be noted that when the water purification equipment is in the water production mode, the raw water flows into the filter membrane mechanism 110 through the raw water supply pipeline 102. After being filtered into clean water by the filter membrane mechanism 110, wastewater will be generated. The wastewater flows into the wastewater chamber 142 through the filter membrane mechanism 110. When the water purification equipment is in any flushing mode, the wastewater after flushing the filter membrane mechanism 110 will be discharged to the wastewater chamber 142.

[0077] Here, when the water purification equipment is producing water and third control valve 160 is closed, wastewater flowing out of membrane filter mechanism 110 flows through third control valve 160 into wastewater chamber 142. When third control valve 160 is opened, the majority of the wastewater after flushing membrane filter mechanism 110 in the water purification equipment flows through wastewater pipe 150 into wastewater chamber 142, with a small portion of the purified water flowing into first water storage mechanism 140. In this embodiment, membrane filter mechanism 110 has a first port, a second port, and a third port. Raw water supply pipe 102 is connected to the first port, purified water supply pipe 103 is connected to the second port, and wastewater pipe 150 is connected to the third port.

[0078] In this embodiment, the third control valve 160 is a wastewater solenoid valve. In other embodiments, the third control valve 160 can also be other types of mechanical valves.

[0079] Please refer to Figure 2 The water outlet module 200 also includes a water intake 220, a purified water output pipeline 230 and a water pump 240. The purified water output pipeline 230 is arranged between the second water storage mechanism 210 and the water intake 220. The water pump 240 is arranged in the purified water output pipeline 230 and serves as a power source for purified water output.

[0080] It is understandable that the water pump 240 pumps the purified water in the second water storage mechanism 210 to the water inlet 220 for the user to take at the water inlet 220. In this way, it is convenient for the user to quickly take water.

[0081] In this embodiment, the water pump 240 may be an electric pump or a mechanical pump, and the type of the water pump 240 is not specifically limited herein.

[0082] Please refer to Figure 1 and Figure 2 The water outlet module 200 further includes a heating device 250 and a steam return line 260 . The heating device 250 is provided in the purified water output line 230 and is used for heating. The steam return line 260 is connected to the purified water output line 230 and the second water storage mechanism 210 .

[0083] Here, the purified water output by the filter membrane mechanism 110 enters the second water storage mechanism 210 through the purified water supply pipeline 103. When taking water, the purified water is pumped from the purified water output pipeline 230 to the heating device 250 by the water pump 240. By adjusting the power of the heating device 250, drinking water of a specified temperature is obtained. In order to prevent the heating temperature from being too high to generate steam and cause scalding to the user, a steam return pipeline 260 is set behind the heating device 250 to allow the steam to condense and flow back to the second water storage mechanism 210.

[0084] In this embodiment, the heating device 250 is a heating tube or other types of heating mechanisms.

[0085] Please refer to Figure 1 The purification module 100 further includes a booster pump 170 , which is disposed on the raw water supply pipeline 102 and is located upstream of the filter membrane mechanism 110 in the raw water flow direction.

[0086] It is understood that due to the large concentration difference on both sides of the membrane filter 110, both the water flow rate and temperature will affect the water flow rate through the membrane filter 110. Before the raw water is input into the membrane filter 110, the booster pump 170 boosts the water pressure, thereby increasing the water flow rate out of the membrane filter 110.

[0087] Please refer to Figure 1 , the control method of the above-mentioned purification equipment includes:

[0088] Detecting whether the purification module 100 needs to be flushed;

[0089] When the purification module 100 needs to be flushed, the raw water flushing mode is started first, and then the clean water flushing mode is started.

[0090] The control method of the above-mentioned purification equipment, when flushing the purification module 100, first starts the raw water flushing mode for flushing, and then starts the clean water flushing mode for flushing, thereby improving the situation where the total value of dissolved solids in the first cup of water after the water purification equipment is shut down is too high, and at the same time effectively reduces the pollutant concentration of the filter membrane mechanism 110, thereby extending the service life of the purification module 100.

[0091] In the above embodiment, the raw water flushing mode is activated first for flushing time T1, and then the purified water flushing mode is activated for flushing time T2. The flushing time T1 of the raw water flushing mode is longer than the flushing time T2 of the purified water flushing mode. The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there are no contradictions in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A water purification device, characterized in that: include: A purification module (100) for filtering raw water and outputting purified water; a water outlet module (200), connected to the purification module (100) and used to receive the purified water output by the purification module (100); The purification module (100) comprises a filter membrane mechanism (110), a clean water flushing pipeline (101) and a raw water supply pipeline (102); the raw water supply pipeline (102) is connected to the filter membrane mechanism (110) and is used to supply raw water; the clean water flushing pipeline (101) is respectively connected to the water outlet module (200) and the raw water supply pipeline (102); the water purification device has at least two different water quality flushing modes, and the raw water supply pipeline (102) and the clean water flushing pipeline (101) can be selectively opened according to the corresponding water quality flushing mode; The water purification device has a raw water flushing mode and a clean water flushing mode, and the purification module (100) further comprises a first control valve (120) provided on the raw water supply pipeline (102) and a second control valve (130) provided on the clean water flushing pipeline (101); When the water purification device is in a raw water flushing mode, the first control valve (120) is opened and the second control valve (130) is closed, the raw water supply pipeline (102) is opened and the clean water flushing pipeline (101) is closed; when the water purification device is in a clean water flushing mode, the first control valve (120) is closed and the second control valve (130) is opened, the raw water supply pipeline (102) is closed and the clean water flushing pipeline (101) is opened; The water purification device further comprises a first water storage mechanism (140) and a second water storage mechanism (210), wherein the first water storage mechanism (140) is in communication with the filter membrane mechanism (110), and the filter membrane mechanism (110) is in communication with the second water storage mechanism (210), wherein the first water storage mechanism (140) is provided with a first liquid level, a water replenishment level, and a water shortage level from top to bottom in the height direction, and the second water storage mechanism (210) is provided with a second liquid level and a water production level from top to bottom in the height direction, and the water purification device has a dual water quality flushing mode, wherein the dual water quality flushing mode is to first start the raw water flushing mode for a flushing time T1 and then start the purified water flushing mode for a flushing time T2; When the first water storage mechanism (140) is at the first liquid level and the second water storage mechanism (210) is at the second liquid level, only the raw water flushing mode is activated; When the first water storage mechanism (140) is at the first liquid level and the second water storage mechanism (210) is lower than the second liquid level, the raw water flushing mode is first activated for flushing, and then the water production mode is activated to produce water until the second water storage mechanism (210) is at the second liquid level, and then the dual water quality flushing mode is activated, and then the water production mode is activated to produce water until the second water storage mechanism (210) is at the second liquid level; When the first water storage mechanism (140) is lower than the first liquid level and higher than the water replenishment level, and the second water storage mechanism (210) is equal to or higher than the water production level, the dual water quality flushing mode is first activated, and then the water production mode is activated to produce water until the second water storage mechanism (210) reaches the second liquid level; When the second water storage mechanism (210) is lower than the water production level, the water production mode is first started to produce water until the second water storage mechanism (210) reaches the second liquid level, and then the dual water quality flushing mode is started; When the first water storage mechanism (140) is at the water shortage level, the water production mode is stopped, the dual water quality flushing mode is started, and the dual water quality flushing mode is started again after the first water storage mechanism (140) is replenished with water; When the first water storage mechanism (140) is at the water replenishment level or between the water replenishment level and the water shortage level, the water production mode and the dual-water quality flushing mode are stopped, and the dual-water quality flushing mode is started again after the first water storage mechanism (140) is replenished with water.

2. The water purification device according to claim 1, characterized in that: The purification module (100) further comprises a clean water supply pipeline (103), wherein the clean water supply pipeline (103) is respectively connected to the filter membrane mechanism (110) and the water outlet module (200).

3. The water purification device according to claim 2, characterized in that: The first water storage mechanism (140) is in communication with the filter membrane mechanism (110) via the raw water supply pipeline (102), and the filter membrane mechanism (110) is in communication with the second water storage mechanism (210) via the purified water supply pipeline (103).

4. The water purification device according to claim 1, characterized in that: The first water storage mechanism (140) further includes a partition, which divides the interior of the first water storage mechanism (140) into a raw water chamber (141) and a waste water chamber (142). The raw water supply pipeline (102) is connected to the raw water chamber (141) and the filter membrane mechanism (110), respectively. The first liquid level, the water replenishment level, and the water shortage level are set in the raw water chamber (141).

5. The water purification device according to claim 4, characterized in that: The height of the partition is smaller than the height of the first water storage mechanism (140); when the liquid level of at least one of the raw water chamber (141) and the waste water chamber (142) is higher than the partition, the raw water chamber (141) and the waste water chamber (142) are connected to each other.

6. The water purification device according to claim 4, characterized in that: The purification module (100) further comprises a wastewater pipeline (150) and a third control valve (160), wherein the wastewater pipeline (150) is respectively connected to the wastewater chamber (142) and the filter membrane mechanism (110), and the third control valve (160) is arranged on the wastewater pipeline (150).

7. The water purification device according to claim 1, characterized in that: The purification module (100) further comprises a booster pump (170), which is provided on the raw water supply pipeline (102) and is located upstream of the filter membrane mechanism (110) in the raw water flow direction.

8. A method for controlling a water purification device according to any one of claims 1 to 7, characterized in that: include: detecting whether the purification module (100) needs to be flushed; When the purification module (100) needs to be flushed, the raw water flushing mode is first started, and then the clean water flushing mode is started.

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