Water purification equipment, control method and device thereof and computer readable storage medium

Abstract

The invention relates to the technical field of water purification equipment, and discloses water purification equipment, a control method and device of the water purification equipment and a computer readable storage medium, the water purification equipment comprises a water outlet pipeline, at least two sets of water production systems and a control unit, and the at least two sets of water production systems are connected to the water outlet pipeline in parallel; the operation number of the at least two sets of water production systems is determined according to the water outlet pressure of the water outlet pipeline, the control unit is in communication connection with the water production systems, and the control unit is used for controlling the water production systems with the determined number to operate. The water purification equipment can determine the operation number of the water production systems according to the water outlet pressure of the water outlet pipeline, the large-flow water taking requirement of a user can be met, the operation number of the water production systems can be reduced when the user takes water at low flow, and therefore the operation power of the whole equipment can be adjusted, and the water purification efficiency is improved. Under the low-flow water taking working condition, the power consumption of the whole machine can be reduced, the vibration and noise conditions of the whole machine are relieved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and in particular to water purification equipment and a control method, device and computer-readable storage medium thereof. Background Art

[0002] The water flow rate of the water purifier meets the complex water needs of the family. Large-flow water purifiers usually use larger filter elements and higher-power booster pumps to meet the needs of large-flow water production. Higher-power booster pumps often mean greater energy consumption. For example, the power of the ordinary 1200G reverse osmosis water purifier on the market is generally around 150W, and its rated water flow rate is 3L / min, which means that when the user fully opens the tap, the maximum flow rate that can be achieved is 3L / min.

[0003] When the user does not need such a large water intake flow rate when actually using the water purifier, such as when the faucet is half-open or slightly opened, the water outlet flow rate of the whole machine decreases (low flow water intake), but the water production system of the water purifier still produces water at the original power (the power of the booster pump remains unchanged), resulting in the inability to discharge the purified water produced by the whole machine through the water outlet pipeline in time. The pressure behind the pump of the water production system increases, resulting in back pressure, which will in turn increase the working current of the booster pump, thereby increasing the power consumption of the water production system, and also causing the heat generation of the whole machine to increase, and the vibration and noise values ​​of the whole machine to increase. Summary of the invention

[0004] In view of this, the present invention provides a water purification device and its control method, device and computer-readable storage medium to solve the problems of increased power consumption, increased heat generation, increased vibration and increased noise caused by low-flow water intake in existing water purification equipment.

[0005] A first aspect of the present invention provides a water purification device, comprising a water outlet pipeline, at least two water production systems and a control unit, at least two of the water production systems are connected in parallel to the water outlet pipeline, the operating number of at least two of the water production systems is determined according to the water outlet pressure of the water outlet pipeline, the control unit is communicatively connected with the water production system, and the control unit is used to control the operation of a determined number of the water production systems.

[0006] Beneficial effect: at least two water production systems are connected in parallel to the water outlet pipeline, so that the purified water prepared by all the water production systems can flow out through the water outlet pipeline for users to use. The operating number of the water production systems is determined according to the water outlet pressure of the water outlet pipeline, and the change in the water flow rate of the water outlet pipeline causes the water outlet pressure to change accordingly. Therefore, when the user's water intake flow rate changes, the corresponding operating number of the water production system is also adaptively adjusted, so that the operating power of the water purification equipment of the present application is adjustable, which can not only meet the user's demand for large-flow water intake, but also reduce the operating number of the water production system when the user takes water at a low flow rate, so as to reduce the power consumption of the whole machine under low-flow water intake conditions, alleviate the vibration and noise of the whole machine, and improve the user experience.

[0007] In an optional embodiment, a pressure sensor communicatively connected to the control unit is provided on the water outlet pipeline, and the pressure sensor is used to detect the outlet water pressure in the water outlet pipeline.

[0008] Beneficial effect: The pressure sensor can detect the water pressure in the water outlet pipeline in time and send the water pressure signal to the control unit. The control unit compares the water pressure signal with the set lower limit of the water intake pressure, and then controls the operation quantity of the water production system.

[0009] In an optional embodiment, the water outlet pipeline is connected to a water tap, and the water tap is used to control and adjust the water outlet pressure in the water outlet pipeline.

[0010] Beneficial effect: The user can draw water by opening or closing the water outlet pipeline through the water tap. Specifically, when the user slightly opens / half opens the water tap, there is pressure buildup in the water outlet pipeline, and the water outlet pressure of the water outlet pipeline is greater than the set lower limit of the water intake pressure. At this time, the control unit controls one of the water production systems to operate to meet the user's low-flow water intake needs. When the user fully opens the water tap, the water outlet pipeline is depressurized (there is no pressure buildup), and the water outlet pressure of the water outlet pipeline is less than the lower limit of the water intake pressure. At this time, the control unit controls at least two of the water production systems to operate to meet the user's high-flow water intake needs.

[0011] In an optional embodiment, the water production system includes a pre-filter element, a fine filter element and a booster pump, the pre-filter element includes a primary filter unit, the pre-filter element has a first water inlet and a first water outlet communicated with the primary filter unit, the first water inlet is communicated with the water inlet end, the fine filter element has a fine filter element water inlet and a pure water outlet, the fine filter element water inlet is communicated with the first water outlet, the pure water outlet is communicated with the water outlet pipeline, the booster pump is communicatively connected with the control unit, and the booster pump is arranged on a pipeline connecting the first water outlet and the fine filter element water inlet.

[0012] Beneficial effect: the raw water entering from the water inlet flows through the first water inlet and then flows into the primary filter unit, and flows out through the first water outlet after being filtered by the primary filter unit, and is pressurized by the booster pump to flow through the water inlet of the fine filter element and into the fine filter element to achieve fine filtration. The clean water after fine filtration flows to the water outlet pipeline through the pure water outlet, achieving secondary filtration of the raw water and ensuring water quality.

[0013] In an optional embodiment, the water production system also includes a water inlet solenoid valve communicatively connected to the control unit, the water inlet solenoid valve is arranged on a pipeline connecting the first water outlet and the water inlet of the fine filter element, and the water inlet solenoid valve is located upstream of the booster pump.

[0014] Beneficial effects: The water inlet solenoid valve can control and adjust the raw water flowing to the fine filter element. The water inlet solenoid valve is controlled by a control unit to achieve automatic adjustment with high efficiency.

[0015] In an optional embodiment, the pre-filter element also includes a secondary filter unit, and the secondary filter unit and the primary filter unit are independently arranged. The pre-filter element also has a second water inlet and a second water outlet communicated with the secondary filter unit, the second water inlet is connected to the pure water port, and the second water outlet is connected to the water outlet pipeline.

[0016] Beneficial effect: Pure water filtered by the fine filter element flows into the secondary filtration unit through the pure water port and the second water inlet. The secondary filtration unit can filter the pure water again to remove trace elements, adjust the pH value and drinking taste. The filtered clean water flows to the water outlet pipe through the second water outlet for users to take.

[0017] In an optional embodiment, the water production system further includes a check valve, which is disposed on a pipeline connecting the second water inlet and the pure water outlet, and is used to prevent the purified water in the water outlet pipeline from flowing back to the fine filter element which is not in operation.

[0018] Beneficial effect: Since all water-making systems are connected to the water outlet pipeline, when some water-making systems are in operation, the remaining water-making systems that are not in operation will have pressure buildup in the water outlet pipeline, causing part of the clean water to flow back to the non-operating water-making systems. Therefore, the check valve can be set to prevent the backflow of clean water from flowing into the fine filter element and causing damage to the fine filter element, thereby protecting the fine filter element.

[0019] In an optional embodiment, the water production system also includes a waterway plate, which has a first waterway and a second waterway, the inlet of the first waterway is connected to the first water outlet, the outlet of the first waterway is connected to the water inlet of the fine filter element, the inlet of the second waterway is connected to the pure water inlet, and the outlet of the second waterway is connected to the second water inlet.

[0020] Beneficial effect: By setting up the waterway plate, complicated piping settings and assembly can be avoided, the internal structure settings of the water purification equipment can be simplified, the integration is high, and the overall volume of the water purification equipment can be greatly reduced.

[0021] In an optional embodiment, the fine filter element further has a wastewater outlet, and the water production system further includes a wastewater pipeline, and the wastewater pipeline is connected to the wastewater outlet.

[0022] Beneficial effect: When the fine filter element is filtering, corresponding wastewater will be generated. The wastewater will flow into the wastewater pipe through the wastewater outlet and be discharged to the outside through the wastewater pipe.

[0023] In an optional embodiment, the water purification equipment further includes a water inlet pipeline, and the water inlet pipeline is connected to at least two sets of the water production systems.

[0024] Beneficial effect: The water inlet pipeline is connected to the water inlet end, so that the raw water at the water inlet end can be transported to the corresponding operating water production system, and after being purified by the water production system, it flows out through the water outlet pipeline for users to take.

[0025] The second aspect of the present invention provides a control method for a water purification device, which is implemented by the water purification device described above, and includes: obtaining the water outlet pressure of a water outlet pipeline; determining the operating number of a water production system based on the water outlet pressure of the water outlet pipeline; and operating the water production system based on the determined operating number of the water production system.

[0026] Beneficial effect: The control method of the water purification equipment of the present application can determine the operating quantity of the water production system according to the water outlet pressure of the water outlet pipeline, so as to achieve the purpose of adjusting the operating power of the water purification equipment while meeting different water intake flow requirements, so as to reduce the power consumption of the whole machine under low-flow water intake conditions, alleviate the vibration and noise of the whole machine, and improve the user experience.

[0027] In an optional embodiment, the method of determining the operating number of the water production systems based on the water outlet pressure of the water outlet pipeline specifically includes: obtaining a start signal of the water purification equipment and the water outlet pressure of the water outlet pipeline is less than a set water intake pressure lower limit, and selecting to operate one of the water production systems.

[0028] Beneficial effect: When the water purification equipment starts to start, the water outlet pipeline is depressurized, and the water outlet pressure of the water outlet pipeline will be lower than the set lower limit of the water intake pressure. At this time, one of the water production systems is selected to operate to ensure that the water purification equipment operates with low power consumption while meeting the water intake demand.

[0029] In an optional embodiment, after obtaining the start signal of the water purification equipment and the water outlet pressure of the water outlet pipe is less than the set water intake pressure lower limit, and selecting to operate one of the water production systems, it also includes: according to the water outlet pressure of the water outlet pipe is still less than the water intake pressure lower limit, increasing the number of operating water production systems.

[0030] Beneficial effect: When the water purification equipment is turned on, if the water outlet pressure of the water outlet pipeline is still lower than the lower limit of the water intake pressure, it means that the user's demand is for large-flow water intake, and the purified water produced by one water production system is difficult to meet the water intake demand. At this time, the number of operating water production systems is increased to meet the user's large-flow water intake demand.

[0031] In an optional embodiment, after obtaining the start signal of the water purification equipment and the water outlet pressure of the water outlet pipe is less than the set water intake pressure lower limit, and one of the water production systems is selected to operate, it also includes: based on the water outlet pressure of the water outlet pipe being greater than the water intake pressure lower limit and the water outlet pressure being less than the set water intake pressure upper limit, maintaining the operation of one of the water production systems or increasing the number of operating water production systems.

[0032] Beneficial effect: The water outlet pressure of the water outlet pipeline is greater than the lower limit of the water intake pressure and less than the set upper limit of the water intake pressure, which means that the clean water produced by the water production system can all flow out in time through the water outlet pipeline, that is, there is no pressure buildup in the water production system. At this time, one of the water production systems can be kept running to keep the water purification equipment running at low power consumption, or the number of running water production systems can be increased to increase the flow rate of the water outlet pipeline, meet the user's large-flow water intake needs, and reduce the waiting time for water intake.

[0033] In an optional embodiment, the method of determining the operating number of the water production system based on the outlet water pressure of the outlet pipe further includes: reducing the operating number of the water production system according to the outlet water pressure of the outlet pipe being greater than a set upper limit of the water intake pressure.

[0034] Beneficial effect: If the water outlet pressure of the water outlet pipeline is greater than the set upper limit of the water intake pressure, it means that the user has reduced the water intake flow through the water tap. The operation of multiple water production systems has resulted in excess purified water flow, which has increased the water outlet pressure of the water outlet pipeline. When the water outlet pressure is greater than the set upper limit of the water intake pressure, the number of operating water production systems is reduced to reduce the operating power consumption of the water purification equipment.

[0035] In an optional embodiment, the method of determining the operating number of the water production system based on the water outlet pressure of the water outlet pipeline specifically includes: shutting down all the water production systems based on the water outlet pressure of the water outlet pipeline being greater than a set water production pressure upper limit value, and the water production pressure upper limit value is greater than the water intake pressure upper limit value.

[0036] Beneficial effect: When the user turns off the water tap, the whole machine is pressurized, and the water pressure in the water outlet pipe continues to increase. When the water outlet pressure is greater than the upper limit of the water production pressure, the pressure sensor outputs a high-pressure signal, and the control unit controls all water production systems to stop running, thereby shutting down the water purification equipment.

[0037] In an optional embodiment, one of the water production systems is set as the main system, and the main system is preferentially operated when water is discharged from the water outlet pipe. The control method of the water purification equipment also includes: according to the operating time T, controlling the main system to switch alternately between at least two sets of the water production systems.

[0038] Beneficial effect: Regardless of whether the water is drawn at a low flow rate or a high flow rate, one of the water-making systems always needs to keep running and the other water-making systems need to be in standby mode. Therefore, the operating time of one of the water-making systems is longer than that of the other water-making systems. Therefore, in order to maintain the same service life of each water-making system or the similar core replacement cycle, one of the water-making systems is set as the main system. The main system is operated preferentially when water is discharged from the outlet pipe. According to the operating time T, the main system is controlled to switch in turn between at least two water-making systems, so that the degree of wear of each water-making system is the same.

[0039] The third aspect of the present invention provides a control device for a water purifier, which is used to implement the control method for the water purifier described above, and the control device for the water purifier includes: an acquisition module, used to acquire the water outlet pressure of the water outlet pipeline; a determination module, used to determine the operating number of the water production system according to the water outlet pressure of the water outlet pipeline; and a control module, used to control the corresponding operation of the water production system according to the determined operating number of the water production system.

[0040] Beneficial effect: Since the control device of the water purification equipment of this embodiment is used to implement the control method of the water purification equipment mentioned above, it has the same technical effect as the control method of the water purification equipment, and will not be repeated here.

[0041] A fourth aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed, the control method of the water purification device described above is implemented.

[0042] Beneficial effect: Since the computer instructions stored in the computer-readable storage medium of this embodiment are used to implement the control method of the water purification device of this embodiment when executed, it has the same technical effect as the control method of the water purification device and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 A schematic diagram of the connection structure of a water purification device according to an embodiment of the present invention;

[0045] Figure 2 This is an enlarged structural schematic diagram of a pre-filter element of a water purification device according to an embodiment of the present invention;

[0046] Figure 3 This is an enlarged structural schematic diagram of a fine filter element of a water purification device according to an embodiment of the present invention;

[0047] Figure 4 A schematic diagram of the three-dimensional structure of a water purification device according to an embodiment of the present invention;

[0048] Figure 5 A top view of a water purification device according to an embodiment of the present invention;

[0049] Figure 6 The figure is a schematic diagram of water outlet pressure of a water outlet pipeline according to an embodiment of the present invention.

[0050] Description of Reference Numerals

[0051] 10. Water inlet pipeline;

[0052] 20. Water system; 21. Pre-filter element; 211. Primary filter unit; 212. First water inlet; 213. First water outlet; 214. Secondary filter unit; 215. Second water inlet; 216. Second water outlet; 22. Fine filter element; 221. Fine filter element water inlet; 222. Pure water outlet; 223. Waste water outlet; 23. Booster pump; 24. Water inlet solenoid valve; 25. Check valve; 26. Waterway board; 27. Waste water pipeline; 28. Machine body; 29. ​​Pump box;

[0053] 30. Water outlet pipe; 31. Pressure sensor. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0056] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0058] Combine the following Figures 1 to 6 , describing an embodiment of the present invention.

[0059] like Figure 1 As shown, according to an embodiment of the present invention, on the one hand, a water purification device is disclosed, including a water outlet pipeline 30, at least two water production systems 20 and a control unit, wherein at least two water production systems 20 are connected in parallel to the water outlet pipeline 30, the operating number of at least two water production systems 20 is determined according to the water outlet pressure of the water outlet pipeline 30, the control unit is communicatively connected with the water production system 20, and the control unit is used to control the operation of a determined number of water production systems 20.

[0060] The water purification equipment of the present application is provided with at least two water production systems 20 connected in parallel to the water outlet pipeline 30, so that the purified water prepared by all the water production systems 20 can flow out through the water outlet pipeline 30 for users to use. The operating number of the water production systems 20 is determined according to the water outlet pressure of the water outlet pipeline 30, and the change of the water flow rate of the water outlet pipeline 30 causes the water outlet pressure to change accordingly. Therefore, when the user's water intake flow rate changes, the corresponding operating number of the water production systems 20 is also adaptively adjusted, so that the operating power of the water purification equipment of the present application is adjustable, which can not only meet the user's demand for large-flow water intake, but also reduce the operating number of the water production systems 20 when the user takes water at a low flow rate, so as to reduce the power consumption of the whole machine under low-flow water intake conditions, alleviate the vibration and noise of the whole machine, and improve the user experience.

[0061] Specifically, the operation quantity of the water production system 20 is determined according to the outlet water pressure of the outlet water pipeline 30, including the following situations:

[0062] (1) When a start signal of the water purification device is obtained and the outlet water pressure of the outlet pipe 30 is less than the set water intake pressure lower limit, one of the water production systems 20 is selected for operation;

[0063] (2) After the water purification equipment is started, when the outlet water pressure of the water outlet pipeline 30 is still lower than the lower limit of the water intake pressure, increase the number of operations of the water production system 20;

[0064] (3) When the outlet water pressure of the outlet water pipeline 30 is greater than the lower limit of the water intake pressure and the outlet water pressure is less than the set upper limit of the water intake pressure, one of the water production systems 20 is maintained in operation or the number of water production systems 20 in operation is increased;

[0065] (4) When the outlet water pressure of the outlet water pipeline 30 is greater than the set upper limit of the water intake pressure, the number of operations of the water production system 20 is reduced;

[0066] (5) When the outlet water pressure of the outlet water pipeline 30 is greater than the set water production pressure upper limit, all water production systems 20 are closed, and the water production pressure upper limit is greater than the water intake pressure upper limit.

[0067] Therefore, the water purification equipment of the present application can adaptively adjust the operating quantity of the water production system 20 according to the change of the water outlet pressure of the water outlet pipeline 30, which can not only meet the user's large-flow water intake demand, but also reduce the power consumption of the whole machine when the user takes water at a low flow rate, and alleviate the vibration and noise of the whole machine.

[0068] One end of the water outlet pipe 30 is used to receive the purified water prepared by the water production system 20, and the other end of the water outlet pipe 30 is connected to the water intake end for users to take purified water.

[0069] There is no specific limitation on the material of the water outlet pipe 30 . For example, the water outlet pipe 30 may be a hose for easy arrangement and storage, or a hard metal pipe to ensure structural strength.

[0070] It should be noted that the lower limit of the water intake pressure can be set as needed, and can also be obtained through a pipeline water outlet test, and this embodiment does not impose any specific limitation.

[0071] In some embodiments, a pressure sensor 31 is disposed on the water outlet pipeline 30 and is communicatively connected to the control unit. The pressure sensor 31 is used to detect the outlet water pressure in the water outlet pipeline 30 .

[0072] The pressure sensor 31 can timely detect the water pressure in the water outlet pipe 30 and send the water pressure signal to the control unit. The control unit compares the water pressure signal with the set water intake pressure lower limit value, and then controls the operation quantity of the water production system 20.

[0073] The pressure sensor 31 is a prior art and will not be described in detail in this embodiment.

[0074] In some embodiments, the water outlet pipeline 30 is connected to a water tap, and the water tap is used to control and adjust the water outlet pressure in the water outlet pipeline 30 .

[0075] The user can control the water outlet pressure of the water outlet pipeline 30 by opening, adjusting and closing the water tap, thereby controlling the operating quantity of the water production system 20, which is very convenient.

[0076] Specifically, the water outlet pressure of the water outlet pipeline 30 is adjusted by the water tap to determine the operation quantity of the water production system 20, including the following situations:

[0077] When the user turns on the water tap, the water outlet pipe 30 is depressurized, and the pressure sensor 31 detects that the water outlet pressure of the water outlet pipe 30 is lower than the lower limit of the water intake pressure, and the control unit controls one of the water production systems 20 to operate;

[0078] If the user fully opens the water faucet / adjusts the opening of the water faucet, there is no pressure build-up in the water outlet pipeline 30. When the pressure sensor 31 detects that the water outlet pressure of the water outlet pipeline 30 is still lower than the lower limit of the water intake pressure, the number of operations of the water production system 20 is increased to increase the water outlet flow to meet the user's high-flow water intake demand;

[0079] If the user slightly opens / half opens the water tap, there is pressure buildup in the water outlet pipe 30, and the water outlet pressure of the water outlet pipe 30 is greater than the set lower limit of the water intake pressure and less than the set upper limit of the water intake pressure. At this time, maintaining one of the water production systems 20 in operation can meet the user's low-flow water intake needs, or increasing the number of water production systems 20 in operation can meet the user's high-flow water intake needs;

[0080] If the user reduces the opening of the water tap, the pressure sensor 31 detects that the water pressure of the water outlet pipe 30 is greater than the upper limit of the water intake pressure, and the number of operations of the water production system 20 is reduced;

[0081] If the user turns off the water tap, the pressure sensor 31 detects that the water pressure of the water outlet pipeline 30 is greater than the upper limit of the water production pressure, and then all water production systems 20 are turned off.

[0082] In terms of the number of settings, combined with economic costs and household water use conditions, the water production system 20 can be set up as two sets. When the user draws water at a low flow rate, a single water production system 20 operates to reduce the power consumption of the entire machine and alleviate vibration and noise. When the user draws water at a large flow rate, the dual water production systems 20 operate to meet the user's large flow water needs.

[0083] Of course, in other embodiments, the water production system 20 may be provided in other quantities, such as three or four sets, to meet different usage requirements, which is not limited to this embodiment.

[0084] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the water production system 20 includes a pre-filter element 21, a fine filter element 22 and a booster pump 23, wherein the pre-filter element 21 includes a primary filter unit 211, the pre-filter element 21 has a first water inlet 212 and a first water outlet 213 communicated with the primary filter unit 211, the first water inlet 212 is connected to the water inlet end, the fine filter element 22 has a fine filter element water inlet 221 and a pure water outlet 222, the fine filter element water inlet 221 is connected to the first water outlet 213, the pure water outlet 222 is connected to the water outlet pipeline 30, the booster pump 23 is communicatively connected to the control unit, and the booster pump 23 is arranged on the pipeline connecting the first water outlet 213 and the fine filter element water inlet 221.

[0085] With the above arrangement, the raw water entering from the water inlet flows through the first water inlet 212 and then flows into the primary filter unit 211, and then flows out through the first water outlet 213 after being filtered by the primary filter unit 211, and then is pressurized by the booster pump 23 to flow through the fine filter element water inlet 221 and into the fine filter element 22 to achieve fine filtration, and the purified water after fine filtration flows to the water outlet pipe 30 through the pure water port 222, thereby achieving secondary filtration of the raw water and ensuring water quality.

[0086] The primary filter unit 211 is disposed upstream of the fine filter element 22 to achieve primary filtration of the raw water and remove large particles of impurities in the raw water.

[0087] Specifically, the primary filtration unit 211 can be a filter element synthesized from PP cotton, activated carbon, and ultrafiltration, which can adsorb impurities such as mud and sand in the raw water, and can also remove residual chlorine in the raw water to achieve coarse filtration of the raw water.

[0088] The fine filter element 22 has higher filtering accuracy than the pre-filter element 21 . The fine filter element 22 is arranged downstream of the primary filter unit 211 and can further purify the raw water filtered by the primary filter unit 211 with high precision. It is the core processing filter element of the water production system 20 .

[0089] In specific form, the fine filter element 22 can be a reverse osmosis membrane filter element, an RO membrane filter element, etc., which is selected according to filtering requirements and is not specifically limited in this embodiment.

[0090] Since the particle size of the fine filter element 22 is very small and the resistance of raw water passing through is relatively large, the booster pump 23 is provided to speed up the passage of raw water through the fine filter element 22 and improve the filtering efficiency.

[0091] The booster pump 23 is connected to the control unit, and the control unit controls the on / off of the water production system 20 by controlling the on / off of the booster pump 23 .

[0092] In some embodiments, the pre-filter element 21 also includes a secondary filter unit 214, and the secondary filter unit 214 and the primary filter unit 211 are independently arranged. The pre-filter element 21 also has a second water inlet 215 and a second water outlet 216 which are in communication with the secondary filter unit 214, the second water inlet 215 is in communication with the pure water port 222, and the second water outlet 216 is in communication with the water outlet pipe 30.

[0093] The pure water filtered by the fine filter element 22 flows into the secondary filter unit 214 through the pure water port 222 and the second water inlet 215. The secondary filter unit 214 can filter the pure water again to remove trace elements, adjust the pH value and drinking taste. The filtered clean water flows to the water outlet pipe 30 through the second water outlet 216 for users to take.

[0094] Specifically, the secondary filter unit 214 may be a filter element containing activated carbon components.

[0095] The pre-filter element 21 has a filter housing, and the first water inlet 212, the first water outlet 213, the second water inlet 215 and the second water outlet 216 are all arranged on the filter housing. The primary filter unit 211 and the secondary filter unit 214 are independently arranged in the filter housing. By integrating the primary filter unit 211 and the secondary filter unit 214 in the same filter housing, there is no need to additionally arrange a post-filter element structure, thereby simplifying the device structure, making the overall structure more compact and reducing the volume.

[0096] In some embodiments, the water production system 20 also includes a water inlet solenoid valve 24 communicatively connected to the control unit. The water inlet solenoid valve 24 is arranged on a pipeline connecting the first water outlet 213 and the fine filter element water inlet 221 , and the water inlet solenoid valve 24 is located upstream of the booster pump 23 .

[0097] The water inlet solenoid valve 24 can control and adjust the raw water flowing to the fine filter element 22. The water inlet solenoid valve 24 is controlled by a control unit to achieve automatic adjustment with high efficiency.

[0098] The water production system 20 further includes a check valve 25 , which is disposed on a pipeline connecting the second water inlet 215 and the pure water outlet 222 , and is used to prevent the purified water in the water outlet pipeline 30 from flowing back to the non-operating fine filter element 22 .

[0099] Since all the water production systems 20 are connected to the water outlet pipeline 30, when some of the water production systems 20 are in operation, the remaining water production systems 20 that are not in operation will have a portion of the clean water flowing back to the water production systems 20 that are not in operation due to the pressure buildup in the water outlet pipeline 30. Therefore, the check valve 25 is set to prevent the backflowing clean water from flowing into the fine filter element 22 and damaging the fine filter element 22, thereby protecting the fine filter element 22.

[0100] It should be noted here that part of the clean water will first flow back into the secondary filter unit 214 of the pre-filter element 21 , and the clean water will not damage the carbon components of the secondary filter unit 214 .

[0101] For example, the check valve 25 may be a one-way valve that only allows pure water from the fine filter element 22 to flow toward the secondary filter unit 214 in one direction, and does not allow pure water from the secondary filter unit 214 to flow back toward the fine filter element 22 .

[0102] like Figure 4 and Figure 5 As shown, in some embodiments, the water production system 20 also includes a water circuit plate 26, on which a first water circuit and a second water circuit are provided, the inlet of the first water circuit is connected to the first water outlet 213, the outlet of the first water circuit is connected to the fine filter element water inlet 221, the inlet of the second water circuit is connected to the pure water inlet 222, and the outlet of the second water circuit is connected to the second water inlet 215.

[0103] By setting the waterway plate 26, complicated piping arrangement and assembly can be avoided, the internal structure arrangement of the water purification equipment can be simplified, the integration is high, and the overall volume of the water purification equipment can be greatly reduced.

[0104] like Figure 1 and Figure 3 As shown, in one embodiment, the fine filter element 22 further has a wastewater outlet 223 , and the water production system 20 further includes a wastewater pipeline 27 , and the wastewater pipeline 27 is connected to the wastewater outlet 223 .

[0105] When the fine filter element 22 is filtering, corresponding waste water will be generated. The waste water will flow into the waste water pipeline 27 through the waste water outlet 223 and will be discharged to the outside through the waste water pipeline 27.

[0106] In some embodiments, the water purification device further includes a water inlet pipeline 10 , and the water inlet pipeline 10 is connected to at least two water production systems 20 .

[0107] The water inlet pipeline 10 is connected to the water inlet end, so that the raw water at the water inlet end can be transported to the corresponding running water production system 20, and after being purified by the water production system 20, it flows out through the water outlet pipeline 30 for users to take.

[0108] The water inlet ends of at least two water production systems 20 are connected to the same water inlet pipeline 10, and the water outlet ends of at least two water production systems 20 are connected to the same water outlet pipeline 30, that is, at least two water production systems 20 are connected in parallel between the water inlet pipeline 10 and the water outlet pipeline 30.

[0109] At the same time, the wastewater pipelines 27 of all water production systems 20 are connected through a drainage pipeline, which further makes the overall structure compact and reduces the number of pipelines.

[0110] It should be noted that the wastewater pipeline 27 is a pressure relief pipeline, and the wastewater will be discharged through the wastewater pipeline 27 first and will not flow back to the fine filter element 22 through the wastewater pipeline 27 to cause damage to it.

[0111] like Figure 4 As shown, in addition to the above-mentioned configuration, in some embodiments, the water purification device further includes a pump box 29, and all booster pumps 23 of the water production system 20 are arranged in the pump box 29 to achieve integrated installation, and the booster pumps 23 can also be protected by the pump box 29.

[0112] In some embodiments, Figure 4 and Figure 5 As shown, the water purification device also includes a body 28, and the pre-filter element 21, the fine filter element 22, the waterway plate 26 and the pump box 29 are all arranged in the body 28, the pre-filter element 21 and the fine filter element 22 are arranged in parallel, the waterway plate 26 is arranged on the top of the pre-filter element 21 and the fine filter element 22, and the pump box 29 is arranged on one side of the pre-filter element 21 and the fine filter element 22, thereby realizing the complete assembly of the water purification equipment.

[0113] In order to facilitate understanding of the water purification equipment of this application, its working process is now introduced as follows:

[0114] When the user turns on the water tap, the pressure sensor 31 detects the water pressure of the water outlet pipe 30 and feeds back the pressure signal to the control unit, which controls a certain number of water production systems 20 (see the above description for details) to operate according to the pressure signal;

[0115] When the water production system 20 is in operation, raw water flows from the water inlet pipe 10 through the first water inlet 212 into the primary filter unit 211. After coarse filtration, the raw water flows through the first water outlet 213 through the fine filter element water inlet 221 driven by the booster pump 23 into the fine filter element 22 for fine filtration. The waste water generated by the filtration flows into the wastewater pipe 27 through the wastewater outlet 223 for discharge. The filtered pure water flows out of the fine filter element 22 from the pure water outlet 222, flows into the secondary filter unit 214 through the second water inlet 215 for re-filtration, and the filtered clean water flows to the water outlet pipe 30 through the second water outlet 216 for user use.

[0116] According to an embodiment of the present invention, on the other hand, a control method for a water purification device is provided. The control method for the water purification device is implemented by the above-mentioned water purification device, and the control method for the water purification device includes: obtaining the water outlet pressure of the water outlet pipeline 30, determining the operating number of the water production system 20 based on the water outlet pressure of the water outlet pipeline 30, and operating the water production system 20 based on the determined operating number of the water production system 20.

[0117] The control method of the water purification equipment of the present application can determine the operating quantity of the water production system 20 according to the water outlet pressure of the water outlet pipeline 30, so as to achieve the purpose of adjusting the operating power of the water purification equipment while meeting different water intake flow requirements, so as to reduce the power consumption of the whole machine under low-flow water intake conditions, alleviate the vibration and noise of the whole machine, and improve the user experience.

[0118] In some embodiments, determining the number of operating water production systems 20 based on the water outlet pressure of the water outlet pipeline 30 specifically includes: obtaining a start signal of the water purification equipment and the water outlet pressure of the water outlet pipeline 30 is less than the set water intake pressure lower limit, and selecting one of the water production systems 20 to operate.

[0119] When the water purification equipment starts to start, the water outlet pipeline 30 is depressurized, and the water outlet pressure of the water outlet pipeline 30 will be lower than the set lower limit of the water intake pressure. At this time, one of the water production systems 20 is selected to operate to ensure that the water purification equipment operates with low power consumption while meeting the water intake demand, thereby alleviating the vibration and noise of the whole machine.

[0120] In some embodiments, after obtaining the start signal of the water purification equipment and the water outlet pressure of the water outlet pipe 30 is less than the set water intake pressure lower limit, after selecting to operate one of the water production systems 20, it also includes: according to the water outlet pressure of the water outlet pipe 30 is still less than the water intake pressure lower limit, increasing the number of operating water production systems 20.

[0121] When the water purification equipment is turned on, the water outlet pressure of the water outlet pipe 30 is still lower than the lower limit of the water intake pressure, indicating that the pressure relief water intake flow in the water outlet pipe 30 is insufficient. The user takes water at a large flow rate, and the purified water produced by one water production system 20 is difficult to meet the water intake demand. At this time, the number of operating water production systems 20 is increased to meet the user's large flow water intake demand.

[0122] In some embodiments, after obtaining the start signal of the water purification equipment and the water outlet pressure of the water outlet pipe 30 is less than the set water intake pressure lower limit, after selecting to operate one of the water production systems 20, it also includes: based on the water outlet pressure of the water outlet pipe 30 being greater than the water intake pressure lower limit and the water outlet pressure being less than the set water intake pressure upper limit, maintaining the operation of one of the water production systems 20 or increasing the number of operating water production systems 20.

[0123] The water outlet pressure of the water outlet pipeline 30 is greater than the lower limit of the water intake pressure and less than the set upper limit of the water intake pressure, which means that the purified water produced by the water production system 20 can all flow out in time through the water outlet pipeline 30. At this time, one of the water production systems 20 can be kept running to enable the water purification equipment to maintain low power consumption operation, or the number of running water production systems 20 can be increased to increase the flow rate of the water outlet pipeline 30 to meet the user's large-flow water intake needs and reduce the waiting time for water intake.

[0124] In some embodiments, determining the operating number of the water production system 20 based on the outlet water pressure of the outlet water pipeline 30 further includes: reducing the operating number of the water production system 20 according to the outlet water pressure of the outlet water pipeline 30 being greater than the set water intake pressure upper limit.

[0125] The water outlet pressure of the water outlet pipe 30 is greater than the set upper limit of the water intake pressure, which means that the user has reduced the water intake flow through the water tap. The operation of multiple water production systems 20 has resulted in excess purified water flow, which has increased the water outlet pressure of the water outlet pipe 30. When the water outlet pressure is greater than the set upper limit of the water intake pressure, the number of operating water production systems 20 is reduced to reduce the operating power consumption of the water purification equipment.

[0126] In an optional embodiment, determining the operating number of the water production system 20 based on the water outlet pressure of the water outlet pipeline 30 specifically also includes: shutting down all water production systems 20 based on the water outlet pressure of the water outlet pipeline 30 being greater than a set water production pressure upper limit value, and the water production pressure upper limit value is greater than the water intake pressure upper limit value.

[0127] When the water pressure of the water outlet pipeline 30 is greater than the set water production pressure upper limit, it means that the user has closed the water tap, causing the whole machine to be pressurized, and the pressure sensor 31 outputs a high-pressure signal to shut down all water production systems 20 and stop water production.

[0128] like Figure 6 As shown, Figure 6The figure is a schematic diagram of the value of the outlet water pressure in the outlet water pipeline 30. It can be seen from the figure that the upper limit of the water production pressure> the upper limit of the water intake pressure> the lower limit of the water intake pressure, and the outlet water pressure changes to the corresponding interval corresponding to different control methods. The upper limit of the water production pressure, the upper limit of the water intake pressure, and the lower limit of the water intake pressure are set according to the needs and can be obtained through experiments. This application does not make specific restrictions.

[0129] Specifically, a pressure sensor 31 can be set to detect the water outlet pressure of the water outlet pipeline 30, and a control unit can be set to communicate with the pressure sensor 31 and the water production system 20. The control unit controls a certain number of water production systems 20 to operate or shut down according to the pressure data detected by the pressure sensor 31 to improve the control efficiency.

[0130] In an optional embodiment, one of the water production systems 20 is set as the main system, and the main system is preferentially operated when water is discharged from the water outlet pipeline 30. The control method of the water purification equipment also includes: according to the operating time T, controlling the main system to switch alternately between at least two water production systems 20.

[0131] Since one of the water-production systems 20 always needs to keep running and the other water-production systems 20 remain in standby mode regardless of whether the water is drawn at a low flow rate or a high flow rate, the running time of one of the water-production systems 20 is longer than that of the other water-production systems 20. Therefore, in order to maintain the same service life of each water-production system 20 or the similar core replacement cycle, one of the water-production systems 20 is set as the main system. The main system is preferentially operated when water is discharged from the outlet pipe 30. According to the running time T, the main system is controlled to switch in turn between at least two water-production systems 20 once, so that the degree of wear of each water-production system 20 is the same.

[0132] The operation time T can be one day, one week or half a month, which can be set according to the needs. For example, if the operation time T is one day, one of the water production systems 20 is the main system on the first day, and the water production system 20 is used first to produce water, and another water production system 20 is used as the main system on the second day, and the water production system 20 is used first to produce water, and the other water production system 20 is switched to the main system on the third day. By alternating in this way, the core replacement cycle of all water production systems 20 can be consistent.

[0133] According to an embodiment of the present invention, on the other hand, a control device for a water purification equipment is provided, and the control device for the water purification equipment is used to implement the above-mentioned control method for the water purification equipment. The control device for the water purification equipment includes an acquisition module, a determination module and a control module. The acquisition module is used to acquire the outlet water pressure of the outlet water pipeline 30, the determination module is used to determine the operating number of the water production system 20 according to the outlet water pressure of the outlet water pipeline 30, and the control module is used to control the operation of the corresponding water production system 20 according to the determined operating number of the water production system 20.

[0134] Since the control device of the water purifier of this embodiment is used to implement the control method of the water purifier described above, it has the same technical effect as the control method of the water purifier, and will not be described in detail here.

[0135] According to an embodiment of the present invention, on another aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed, the control method of the water purification device described above is implemented.

[0136] Since the computer instructions stored in the computer-readable storage medium of this embodiment are used to implement the control method of the water purification device of this embodiment when executed, it has the same technical effect as the control method of the water purification device and will not be repeated here.

[0137] Specifically, the computer-readable storage medium may be a USB disk, a virtual disk, etc., and this embodiment does not impose any specific limitation.

[0138] From the description of the above embodiments, it can be seen that the water purification equipment of the present application can achieve a large flow rate (at least two water production systems 20 jointly produce water, and the upper limit of the flow rate is higher than that of the existing single water production system 20), a long life (at least two water production systems 20, each with 2 filter elements, and a total purified water volume is greater), and low energy consumption (can be switched to a single water production system 20 or multiple water production systems 20 for water production according to the usage status). At the same time, when the whole machine draws water at a low flow rate, the single water production system 20 works, which is beneficial to alleviating / reducing the noise and vibration control of the whole machine.

[0139] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined in this application.

Claims

1. A water purification device, characterized in that: include: A water outlet pipe (30); At least two water production systems (20) are connected in parallel to the water outlet pipeline (30), and the operating quantity of the at least two water production systems (20) is determined according to the water outlet pressure of the water outlet pipeline (30); A control unit is communicatively connected to the water production system (20), and the control unit is used to control the operation of a determined number of the water production systems (20).

2. The water purification device according to claim 1, characterized in that: The water outlet pipeline (30) is provided with a pressure sensor (31) which is communicatively connected to the control unit, and the pressure sensor (31) is used to detect the outlet water pressure in the water outlet pipeline (30).

3. The water purification device according to claim 1, characterized in that: The water outlet pipeline (30) is connected to a water tap, and the water tap is used to control and adjust the water outlet pressure in the water outlet pipeline (30).

4. The water purification device according to any one of claims 1 to 3, characterized in that: The water production system (20) comprises: A pre-filter element (21) comprises a primary filter unit (211), wherein the pre-filter element (21) has a first water inlet (212) and a first water outlet (213) which are in communication with the primary filter unit (211), and the first water inlet (212) is in communication with a water inlet end; A fine filter element (22) having a fine filter element water inlet (221) and a pure water outlet (222), wherein the fine filter element water inlet (221) is in communication with the first water outlet (213), and the pure water outlet (222) is in communication with the water outlet pipeline (30); A booster pump (23) is communicatively connected to the control unit, and the booster pump (23) is arranged on a pipeline connecting the first water outlet (213) and the fine filter element water inlet (221).

5. The water purification device according to claim 4, characterized in that: The water production system (20) further comprises a water inlet solenoid valve (24) communicatively connected to the control unit, the water inlet solenoid valve (24) being arranged on a pipeline connecting the first water outlet (213) and the fine filter element water inlet (221), and the water inlet solenoid valve (24) being located upstream of the booster pump (23).

6. The water purification device according to claim 4, characterized in that: The pre-filter element (21) further comprises a secondary filter unit (214), wherein the secondary filter unit (214) and the primary filter unit (211) are independently arranged, and the pre-filter element (21) further comprises a second water inlet (215) and a second water outlet (216) which are in communication with the secondary filter unit (214), wherein the second water inlet (215) is in communication with the pure water port (222), and the second water outlet (216) is in communication with the water outlet pipeline (30).

7. The water purification device according to claim 6, characterized in that: The water production system (20) further comprises a check valve (25), wherein the check valve (25) is arranged on a pipeline connecting the second water inlet (215) and the pure water outlet (222), and is used to prevent the purified water in the water outlet pipeline (30) from flowing back to the non-operating fine filter element (22).

8. The water purification device according to claim 6, characterized in that: The water production system (20) further comprises a waterway plate (26) having a first waterway and a second waterway thereon, wherein the inlet of the first waterway is connected to the first water outlet (213), the outlet of the first waterway is connected to the fine filter element water inlet (221), the inlet of the second waterway is connected to the pure water outlet (222), and the outlet of the second waterway is connected to the second water inlet (215).

9. The water purification device according to claim 4, characterized in that: The fine filter element (22) also has a wastewater outlet (223), and the water production system (20) also includes a wastewater pipeline (27), and the wastewater pipeline (27) is connected to the wastewater outlet (223).

10. The water purification device according to any one of claims 1 to 3, characterized in that: The water purification equipment further comprises a water inlet pipeline (10), wherein the water inlet pipeline (10) is connected to at least two sets of the water production systems (20).

11. A method for controlling a water purification device, characterized in that: The control method of the water purifier is implemented by the water purifier according to any one of claims 1 to 10, and the control method of the water purifier comprises: Obtaining the outlet water pressure of the outlet water pipeline (30); Determining the operating quantity of the water production system (20) based on the outlet water pressure of the outlet water pipeline (30); The water production system (20) is operated based on the determined operation quantity of the water production system (20).

12. The control method of the water purification equipment according to claim 11, characterized in that: The method of determining the operating quantity of the water production system (20) based on the outlet water pressure of the outlet water pipeline (30) specifically includes: When a start signal of the water purification device is obtained and the water outlet pressure of the water outlet pipeline (30) is less than a set water intake pressure lower limit, one of the water production systems (20) is selected for operation.

13. The control method of the water purification equipment according to claim 12, characterized in that: After the start signal of the water purification device is obtained and the outlet water pressure of the water outlet pipeline (30) is less than the set water intake pressure lower limit, one of the water production systems (20) is selected for operation, the method further includes: According to the fact that the outlet water pressure of the outlet water pipeline (30) is still lower than the lower limit of the water intake pressure, the operation quantity of the water production system (20) is increased.

14. The control method of the water purification equipment according to claim 12, characterized in that: After the start signal of the water purification device is obtained and the outlet water pressure of the water outlet pipeline (30) is less than the set water intake pressure lower limit, one of the water production systems (20) is selected for operation, the method further includes: According to the water outlet pressure of the water outlet pipeline (30) being greater than the water intake pressure lower limit and the water outlet pressure being less than the set water intake pressure upper limit, one of the water production systems (20) is maintained in operation or the number of water production systems (20) in operation is increased.

15. The control method of a water purification device according to any one of claims 11 to 14, characterized in that: The method of determining the operating quantity of the water production system (20) based on the outlet water pressure of the outlet water pipeline (30) further includes: According to the water outlet pressure of the water outlet pipeline (30) being greater than a set upper limit of the water intake pressure, the number of operations of the water production system (20) is reduced.

16. The control method of a water purification device according to any one of claims 11 to 14, characterized in that: The method of determining the operating quantity of the water production system (20) based on the outlet water pressure of the outlet water pipeline (30) further includes: All of the water production systems (20) are shut down according to the water outlet pressure of the water outlet pipeline (30) being greater than a set water production pressure upper limit value, wherein the water production pressure upper limit value is greater than a water intake pressure upper limit value.

17. The control method of a water purification device according to any one of claims 11 to 14, characterized in that: One of the water production systems (20) is set as a main system, and the main system is preferentially operated when water is discharged from the water outlet pipeline (30). The control method of the water purification equipment also includes: According to the operation time T, the main system is controlled to switch in turn between at least two sets of the water production systems (20).

18. A control device for a water purification device, characterized in that: The control device of the water purifier is used to implement the control method of the water purifier according to claim 11, and the control device of the water purifier comprises: An acquisition module, used for acquiring the outlet water pressure of the outlet water pipeline (30); A determination module, used to determine the operation quantity of the water production system (20) according to the outlet water pressure of the outlet water pipeline (30); A control module is used to control the operation of the corresponding water production system (20) according to the determined operation quantity of the water production system (20).

19. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed, the control method of the water purification device according to any one of claims 11 to 17 is implemented.

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