Water production system and water production method for increasing mineral content

Abstract

The present application relates to a kind of water production system and water production method for improving mineral content, water production system includes main pipe and first branch pipe, main pipe is equipped with water inlet end, first flow control piece, filter assembly and water outlet end in sequence, filter assembly includes filter cavity and membrane filter core, membrane filter core is set in filter cavity and filter cavity is divided into raw water chamber with first flow control piece communication and pure water chamber with water outlet end communication, first detection site is provided in raw water chamber;First branch pipe is equipped with first inlet, second switch valve and first outlet in sequence, and first inlet is communicated with raw water chamber.This water production system utilizes the ion migration phenomenon existing in membrane filter core itself, so that user can get water with mineral content meeting user's demand after water in filter cavity is static for a period of time, and also can avoid mineral content being too high, avoid heavy metal ions and other harmful substances being precipitated, so as to ensure the safety of pure water quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water production systems, and in particular to a water production system and method for improving mineral content. BACKGROUND

[0002] With the increasing popularity of water purification products in users' homes, the single water purification function cannot meet the needs of some users. Users not only want safe purified water, but also want to retain the minerals in the water. In addition, different groups of people have different needs for the content of minerals in water, such as young children and the elderly, who need more minerals in the body, so the minerals in the water need to be as much as possible. For young people, on the other hand, the body is in good condition, and they hope that the minerals in the water can be less.

[0003] To meet the above needs, there are two main solutions in the prior art. One is to use mineralization, that is, to artificially add minerals to the water. This method has certain safety problems with the mineralization filter element, such as the precipitation of heavy metal ions. On the other hand, the mineralization filter element is generally arranged after the membrane filter element, which has problems such as excessive mineralization leading to high ion concentration, and long-term soaking of bacteria breeding. SUMMARY

[0004] Therefore, it is necessary to provide a water production system and method for improving mineral content to improve the mineral content while ensuring water quality safety.

[0005] The present application first provides a water production system for improving mineral content, comprising:

[0006] A main pipe is provided with a water inlet end, a first flow control element, a filter assembly, and a water outlet end in sequence. The filter assembly includes a filter cavity and a membrane filter element. The membrane filter element is arranged in the filter cavity and divides the filter cavity into a raw water cavity in communication with the first flow control element and a purified water cavity in communication with the water outlet end. A first detection site is arranged in the raw water cavity.

[0007] A first branch pipe is provided with a first inlet, a second switch valve, and a first outlet in sequence. The first inlet is in communication with the raw water cavity.

[0008] In the water production system for improving the mineral content, the TDS value of the water in the raw water cavity continuously increases during the water taking process, and the water in the raw water cavity can be maintained at the set value T0 through the first branch pipeline; after the water in the filter cavity is left for a period of time, the minerals before and after the membrane filter element migrate, so that the TDS values of the water in the raw water cavity and the purified water cavity are both T0; when water is taken again, the water with the TDS value of T0 in the purified water cavity flows out through the water outlet, so that the TDS value of the water received by the user is T0; thus, the ion migration phenomenon existing in the membrane filter element itself is utilized, so that the user can receive water with a mineral content meeting the user's demand, and the mineral content is also prevented from being too high to cause heavy metal ions and other harmful substances to precipitate, thereby ensuring the safety of the purified water quality.

[0009] In one of the embodiments, the main pipeline is further provided with a second detection position, which is located between the first flow control member and the filter assembly;

[0010] The first branch pipeline is further provided with a flow regulating valve, which is arranged between the second on-off valve and the first outlet.

[0011] In this way, the opening degree of the flow regulating valve can be controlled according to the preset T2 and the opening degree of the flow regulating valve, so as to accurately control the TDS value of the water in the raw water cavity to T0, thereby improving the accuracy of the mineral content of the water received by the user.

[0012] In one of the embodiments, the main pipeline is further provided with a third on-off valve, which is located between the filter assembly and the water outlet;

[0013] The water production system further comprises a second branch pipeline, which is sequentially provided with a second inlet, a fourth on-off valve and a second outlet, and the second inlet communicates with the purified water cavity.

[0014] In this way, the second branch pipeline can discharge the water with a lower mineral content in the water production system, so that the TDS value of the water received by the user for the first time is T0, which further meets the user's demand.

[0015] In one of the embodiments, the second outlet communicates with the raw water cavity, and the second branch pipeline is further provided with a water collector and a second flow control member, which are sequentially arranged between the fourth on-off valve and the second outlet.

[0016] In this way, the water collector can collect the water with a lower mineral content for subsequent use in flushing the membrane filter element, so as to fully utilize the purified water filtered by the membrane filter element, avoid waste, and ensure the filtering effect of the membrane filter element.

[0017] In one of the embodiments, the main pipeline is further provided with a first switch valve, which is arranged between the water inlet end and the first flow control member.

[0018] The second outlet is communicated with the main pipeline between the first switch valve and the first flow control member, and the second branch pipeline is further provided with a water collector and a fifth switch valve, which are arranged between the fourth switch valve and the second outlet in sequence.

[0019] In this way, the original first flow control member is used as the power source for flushing the membrane filter element, so as to reduce the cost.

[0020] In one of the embodiments, the water production system further comprises an overflow pipe, two ends of the overflow pipe being communicated with the water collector and the first branch pipeline respectively.

[0021] In this way, when the water in the water collector reaches the preset water level, the water is discharged into the second branch pipeline, so as to avoid that the water in the water collector exceeds the maximum capacity of the water collector.

[0022] The application further provides a water production method for improving mineral content, which is applied to the water production system for improving mineral content and comprises the following steps:

[0023] Obtaining the value T0 of TDS of the preset water taking;

[0024] Adjusting to the water taking mode: closing the second switch valve and starting the first flow control member;

[0025] Obtaining the value T1 of TDS of the first detection position in real time;

[0026] Determining whether T1 is less than or equal to T0;

[0027] If not, the second switch valve is opened and water is taken;

[0028] If yes, water is directly taken.

[0029] In this way, the ion migration phenomenon existing in the membrane filter element itself is utilized, so that the user can obtain water with mineral content meeting the user's demand after the water in the filter cavity is left for a period of time, and the mineral content is also prevented from being too high to cause heavy metal ions and other harmful substances to be precipitated, thereby ensuring the safety of the purified water quality.

[0030] In one of the embodiments, the main pipeline is further provided with a second detection position, and the first branch pipeline is further provided with a flow regulating valve; in the step of opening the second switch valve and taking water if not, the method further comprises the following steps:

[0031] Opening the second switch valve and the flow regulating valve;

[0032] acquire the TDS value T2 at the second detection position in real time;

[0033] compare T2 with the pre-stored reference table, and select the opening degree of the flow regulating valve corresponding to the current T2.

[0034] In this way, the opening degree of the flow regulating valve corresponding to the current T2 value can be selected in the reference table, and the flow regulating valve can be adjusted according to the selected opening degree, so that the TDS value of the water in the raw water cavity can be accurately controlled at T0, thereby improving the accuracy of the mineral content of the water received by the user.

[0035] In one of the embodiments, the main pipeline is further provided with a third on-off valve, and the water production system further includes a second branch pipeline provided with a fourth on-off valve; after the step of acquiring the TDS value T0 of the preset water taking, the method further includes the steps of:

[0036] acquiring the TDS value T2 at the second detection position;

[0037] determining whether T2 is less than T0;

[0038] If not, stop working;

[0039] If yes, acquire the TDS value T1 at the first detection position;

[0040] determining whether T1 is less than T0;

[0041] If not, stop working;

[0042] If yes, adjust to the mineral content increasing mode: open the fourth on-off valve, close the second on-off valve and the third on-off valve, start the first flow control member, and cyclically execute the step of determining whether T1 is less than T0.

[0043] In this way, when T2 is greater than or equal to T0, or when T1 is greater than or equal to T0, the subsequent water taking can be directly performed, and the mineral content meets the user's demand, so that the water production system can stop working; when T2 is less than T0 and T1 is less than T0, the mineral content needs to be increased, the first flow control member is started, and the TDS value of the water in the raw water cavity gradually increases; when T1 is equal to T0, the water in the filter cavity is left to stand for a period of time, and due to the ion migration phenomenon existing in the membrane filter element, the TDS values of the water in the raw water cavity and the clean water cavity are both T0.

[0044] In one of the embodiments, the second branch pipeline is further provided with a water collector and a second flow control member; and the water production method further includes the steps of:

[0045] adjusting to the flushing mode: open the second on-off valve and the flow regulating valve, close the third on-off valve and the fourth on-off valve, and start the second flow control member; or,

[0046] The first switch valve is arranged on the main pipe, and the fifth switch valve, the second switch valve and the water collector are arranged on the second branch pipe.

[0047] Adjusting to the flushing mode: opening the fifth switch valve, the second switch valve and the flow regulating valve, closing the third switch valve, the fourth switch valve and the first switch valve, and starting the first flow control member.

[0048] In this way, the water with low mineral content in the water collector can enter the raw water cavity and flush the harmful substances attached to the surface of the membrane filter element and the bacteria, organic matter, particulate impurities and the like in the raw water cavity, so as to ensure the filtering effect of the membrane filter element.

[0049] In one of the embodiments, the adjusting to the flushing mode is performed after each water taking.

[0050] In this way, the filtering effect of the membrane filter element is ensured each time the membrane filter element is filtered, and the service life of the membrane filter element and the water production system is prolonged.

[0051] In one of the embodiments, after the adjusting to the flushing mode is completed, the TDS value T2 at the second detection position is obtained.

[0052] It is determined whether T2 is less than T0.

[0053] If not, the work is stopped.

[0054] If yes, the TDS value T1 at the first detection position is obtained.

[0055] It is determined whether T1 is less than T0.

[0056] If not, the work is stopped.

[0057] If yes, the fourth switch valve is opened, the second switch valve and the third switch valve are closed, the first flow control member is started, and it is determined whether T1 is less than T0.

[0058] In this way, the next water taking is prepared, so as to improve the working efficiency of the water production system. BRIEF DESCRIPTION OF DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0060] Figure 1 FIG. 1 is a diagram of a water production system for improving mineral content according to the first embodiment of the present application;

[0061] Figure 2 This is a diagram of a water production system for increasing mineral content according to a second embodiment of the present invention;

[0062] Figure 3 This is a diagram of a water production system for increasing mineral content according to a third embodiment of the present invention;

[0063] Figure 4 This is a diagram of a water production system for increasing mineral content according to the fourth embodiment of the present invention;

[0064] Figure 5 This is a flowchart of the water production method for increasing mineral content according to the present invention;

[0065] Figure 6 This is a flowchart of the water production method for increasing mineral content according to the present invention. Figure 1 ;

[0066] Figure 7 This is a flowchart of the water production method for increasing mineral content according to the present invention. Figure 2 .

[0067] Reference numerals: 10, Main pipe; 11, First flow control element; 12, Filter assembly; 121, Filter chamber; 1211, Raw water chamber; 1212, Clean water chamber; 122, Membrane filter element; 123, First detection position; 13, Second detection position; 14, Third switching valve; 15, First switching valve; 16, First filter element; 17, Second filter element; 20, First branch pipe; 21, Second switching valve; 22, Flow regulating valve; 30, Second branch pipe; 31, Fourth switching valve; 32, Water collector; 33, Second flow control element; 34, Fifth switching valve; 35, Check valve; 40, Overflow pipe. Detailed Implementation

[0068] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0069] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element such as a layer, region or substrate is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, when a layer is referred to as being "on" or "connected to" another layer, it has a function of a known intermediate layer. The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The terms "comprises", "comprising", "includes", "including", "has", "having", "contains" or "containing" and the like are used herein to mean either "includingsome but not all elements" or "comprising substantially all of the elements thereof". It will be understood that there are a number of other implementations that fall within the scope of the disclosed implementations. Embodiments of the application will now be described, by way of example only, with reference to the attached figures. It is to be understood that any feature described in relation to one implementation can be incorporated usefully into other implementations and that the description is not to be construed as a limitation on the scope of the application. The skilled person will readily appreciate that the scope of the application is not limited to the embodiments described herein and that various modifications and alterations can be made to the embodiments described without departing from the scope of the application. The terminology used herein for the purpose of describing particular implementations only and is not intended to be limiting of the application. Unless explicitly stated otherwise, it is intended that the words and / or symbols herein connect the word "including," "comprising," "carrying," "containing" and / or the like are used in their open, conventional sense, and that terms such as "consisting of," "consisting essentially of," and / or the like are used to in their closed, more restrictive sense. The term "and / or" includes combinations thereof, i.e. "and / or" means one, or two or more, i.e. one, two or more. The term "about" when used before a numerical designation, has its usual meaning in the field of numerical specification, and means "approximately" or "circa", i.e. a value that is reasonably close to the value specified.

[0070] Furthermore, the terms "first", "second", third", "fourth" and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of use in either order. It is also to be understood that the terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting. The use of the terms "including", "comprising", "comprises" "containing", "has", "having", "includes" or "contain", and / or the like are used herein in the broadest sense to mean that the described features, steps, actions, elements, components, and / or the like can be present, but not necessarily all, of them are present, one or more. The use of the terms "a", "an" and / or "the" are used herein in the broadest possible context to mean one or more, for example, the term "a" is used to refer to one or more than one, i.e. one or more. The use of the terms "plurality" and / or "a plurality" is intended to mean one or more than one, i.e. one or more. The terms "coupled" and / or "connected" are used broadly and encompass both direct and indirect coupling and / or connection, and are used in their broadest possible context to mean and / or encompass the relationship between or among two or more elements, components, and / or the like. The term "connected" is used in the broadest possible context to mean and / or encompass the relationship between or among two or more elements, components, and / or the like, for example, the term "connected" is used to mean and / or encompass a direct connection, an indirect connection, a wired connection, a wireless connection, a connection between or among two or more elements, components, and / or the like, and / or the like. The term "directly connected" is used in the broadest possible context to mean and / or encompass a direct connection between or among two or more elements, components, and / or the like, i.e. a connection without an intermediate element, component, and / or the like. The term "indirectly connected" is used in the broadest possible context to mean and / or encompass a connection between or among two or more elements, components, and / or the like, i.e. a connection with an intermediate element, component, and / or the like. The term "and / or" includes combinations thereof, i.e. "and / or" means one, or two or more, i.e. one, two or more. The term "about" when used before a numerical designation, has its usual meaning in the field of numerical specification, and means "approximately" or "circa", i.e. a value that is reasonably close to the value specified.

[0071]

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular implementations only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety for the purpose of describing and disclosing, for example, the methodologies, techniques, procedures, and / or components that are described in the publications, which might be used in connection with the described implementations. The use of the terms "first", "second", "third", and / or "fourth" to describe various information and / or objects is used for convenience only and is not to be construed as indicating or implying a relative importance or an actual number of such elements. Thus, one implementation can include a "first" and a "second" element, or a "first", "second", and "third" element, or a "first", "second", "third", and "fourth" element, etc. The term "plurality" is used to indicate that there are two or more of the elements, components, and / or the like.

[0073]

[0074] ​​There are two solutions in the prior art, one is to add minerals to the water artificially, which has certain safety problems, such as precipitation of heavy metal ions; on the other hand, the mineralization filter element is generally arranged after the membrane filter element, which has problems of excessive mineralization leading to high ion concentration and long-term soaking of bacteria breeding.

[0075] To solve the above problems, as shown in Figures 1 to 4 The present application first provides a water production system for increasing mineral content, which can be applied to water purification products to increase the mineral content in the water according to the needs of people while ensuring water quality safety. The mineral content in the water, i.e. the value of total dissolved solids (TDS), will be described below.

[0076] Specifically, as shown in Figure 1 The water production system for increasing mineral content includes a main pipe 10 and a first branch pipe 20, wherein: the main pipe 10 is sequentially provided with a water inlet end, a first flow control element 11, a filter assembly 12 and a water outlet end, the filter assembly 12 includes a filter cavity 121 and a membrane filter element 122, the membrane filter element 122 is arranged in the filter cavity 121 and divides the filter cavity 121 into a raw water cavity 1211 communicating with the first flow control element 11 and a purified water cavity 1212 communicating with the water outlet end, and the raw water cavity 1211 is provided with a first detection site 123; the first branch pipe 20 is sequentially provided with a first inlet, a second switch valve 21 and a first outlet, and the first inlet communicates with the raw water cavity 1211.

[0077] In the water production system provided by the present application, the water inlet end can communicate with a raw water source, the water outlet end can communicate with a water outlet of a water purification product, and the first outlet can communicate with a wastewater tank; the first flow control element 11 is used to adjust the water supply flow of the main pipe 10, i.e. to adjust the flow of water filtered by the filter assembly 12 and the membrane filter element 122; the membrane filter element 122 of the filter assembly 12 is used to filter impurities such as small particles, colloids, bacteria and algae in the water, and also to filter part of the minerals; the first detection site 123 is used to detect the TDS value of the water in the raw water cavity 1211; and the second switch valve 21 is used to control the on-off of the first branch pipe 20, i.e. to control whether the water in the raw water cavity 1211 flows out through the first outlet of the first branch pipe 20.

[0078] The first detection site 123 can be tested by a TDS tester. For convenience of description, the TDS value of the water taken by the user is set as T0, and the TDS value detected by the first detection site 123 through the TDS tester is set as T1.

[0079] Due to the characteristics of the membrane filter element 122, the mineral content of the water before and after the membrane filter element 122 is different during the flow of the water in the main pipeline 10, that is, during the filtration, that is, the TDS values of the water in the raw water cavity 1211 and the purified water cavity 1212 are different, and the TDS value of the water in the raw water cavity 1211 is greater than the TDS value of the water in the purified water cavity 1212. Generally, the throttling rate of the membrane filter element 122 to the mineral is 80% to 95%, and for example, the TDS value of the water in the purified water cavity 1212 is 1 / 5 of the TDS value of the water in the raw water cavity 1211. When the water in the main pipeline 10 is not flowing, that is, in the static state, the minerals before and after the membrane filter element 122 will migrate, and finally the TDS values before and after the membrane filter element 122 are the same, that is, the TDS values of the water in the raw water cavity 1211 and the purified water cavity 1212 are the same.

[0080] When the water production system is working, the user first sets the TDS value T0 of the water to be taken, and when taking water for the first time, the first flow control member 11 is started, the second switch valve 21 is closed, the water in the main pipeline 10 flows in the direction from the water inlet end to the water outlet end, and the relationship between T1 and T0 of the first detection position 123 is detected. When T1≤T0, the second switch valve 21 is kept closed, and at this time the TDS value of the water in the purified water cavity 1212 is also less than T0, that is, the TDS value of the water flowing out from the water outlet end is less than T0; the TDS value of the water in the raw water cavity 1211 gradually rises, and when T1>T0, the second switch valve 21 is opened, so that part of the water in the raw water cavity 1211 flows to the first branch pipeline 20 and flows out from the first opening, avoiding the continuous rise of the TDS value of the water in the raw water cavity 1211, so as to ensure that the water in the raw water cavity 1211 is maintained at about T0; after the first water taking is completed, the first flow control member 11 and the second switch valve 21 are closed, and after the water in the filtration cavity 121 is static for a period of time, the minerals before and after the membrane filter element 122 will migrate, and finally the TDS values of the water in the raw water cavity 1211 and the purified water cavity 1212 are both T0; when taking water again, the first flow control member 11 is started, and the water with TDS value T0 in the purified water cavity 1212 will flow out first through the water outlet end, so that the user can get the water with TDS value T0, meeting the user's demand.

[0081] The water production system enables the user to get water with mineral content meeting the user's demand, meets the needs of different user groups and different regions, and also avoids the problem that the high mineral content affects the taste of water or causes bacterial growth, and avoids the precipitation of harmful substances such as heavy metal ions, so as to ensure the safety of the quality of the purified water.

[0082] In addition, in order to ensure that the user has enough water with mineral content meeting the user's demand each time when taking water subsequently, the volume of the purified water cavity 1212 is preferably designed to be larger.

[0083] For example, the volume of the purified water cavity 1212 is 1 / 5 of the volume of the raw water cavity 1211. Figure 1As shown, the main pipeline 10 can further include a first filter cartridge 16 and a second filter cartridge 17 located before and after the filter assembly 12. The first filter cartridge 16 performs primary filtration on the water entering from the water inlet end to filter out some impurities in the water. The second filter cartridge 17 can be a filter cartridge with heavy metal removal function, such as a KDF filter cartridge, an NSP membrane chromatographic filter cartridge, or an activated carbon filter cartridge with heavy metal adsorption capacity. Preferably, the second filter cartridge 17 is an activated carbon filter cartridge with heavy metal adsorption capacity, which is beneficial to improve the taste of the water while adsorbing heavy metals.

[0084] As shown in FIG. 1, the water inlet end of the water production system 1 is connected to a water source (not shown) through a water inlet pipe 2. The water inlet pipe 2 is connected to the main pipeline 10 through a first control flow piece 11. The first control flow piece 11 is connected to the filter assembly 12. Figure 1 As shown, the main pipeline 10 is further provided with a first on-off valve 15 located between the first filter cartridge 16 and the first control flow piece 11. The first on-off valve 15 is used to control the opening and closing of the main pipeline 10, i.e., whether the water from the water inlet end flows to the first control flow piece 11.

[0085] As shown in FIG. 1, the water inlet end of the water production system 1 is connected to a water source (not shown) through a water inlet pipe 2. The water inlet pipe 2 is connected to the main pipeline 10 through a first control flow piece 11. The first control flow piece 11 is connected to the filter assembly 12. Figure 2 As shown, the main pipeline 10 is further provided with a second detection site 13 located between the first control flow piece 11 and the filter assembly 12. The first branch pipeline 20 is further provided with a flow regulating valve 22 located between the second on-off valve 21 and the first outlet. The flow regulating valve 22 is used to regulate the flow of the first branch pipeline 20, i.e., the flow of the water in the raw water cavity 1211 flowing out through the first outlet of the first branch pipeline 20. The second detection site 13 is used to detect the TDS value of the water before entering the raw water cavity 1211. The TDS value detected by the second detection site 13 through the TDS tester is denoted as T2.

[0086] It can be understood that in the case of T1>T0, the larger T2 is, the faster the rate of increase of T1 will be, and at this time, the opening of the flow regulating valve 22 needs to be increased, i.e., the flow of the water in the raw water cavity 1211 flowing out through the first outlet of the first branch pipeline 20 needs to be increased, so as to maintain T1 at T0. Conversely, the smaller T2 is, the slower the rate of increase of T1 will be, and at this time, the opening of the flow regulating valve 22 needs to be reduced, so as to maintain T1 at T0.

[0087] In the product development stage of the water production system, the relationship between T2 and the opening of the flow regulating valve 22 when T1 is maintained at T0 can be determined through testing, and a reference table can be obtained for the water production system to look up the corresponding opening of the flow regulating valve 22 according to T2 in the reference table in the product use stage, so that T1 can be maintained at T0. Thus, the TDS value of the water in the raw water cavity 1211 can be accurately controlled at T0, so as to improve the accuracy of the mineral content of the water received by the user.

[0088] As shown in FIG. 1, the water inlet end of the water production system 1 is connected to a water source (not shown) through a water inlet pipe 2. The water inlet pipe 2 is connected to the main pipeline 10 through a first control flow piece 11. The first control flow piece 11 is connected to the filter assembly 12. Figures 3 to 4As shown, the main pipe 10 is further provided with a third switch valve 14, which is located between the filter assembly 12 and the water outlet. When the second filter cartridge 17 is arranged, the third switch valve 14 is arranged between the filter assembly 12 and the second filter cartridge 17. The third switch valve 14 is used to control the connection between the purified water chamber 1212 and the water outlet, i.e. to control whether the water in the purified water chamber 1212 flows out through the water outlet. The water production system further comprises a second branch pipe 30, which is provided with a second inlet, a fourth switch valve 31 and a second outlet in sequence, and the second inlet is in communication with the purified water chamber 1212. The fourth switch valve 31 is used to control the connection between the purified water chamber 1212 and the second outlet, i.e. to control whether the water in the purified water chamber 1212 flows out through the second outlet.

[0089] As shown, Figure 3 In an embodiment, the second outlet is in communication with the raw water chamber 1211, and the second branch pipe 30 is further provided with a water collector 32 and a second flow control member 33, which are arranged between the fourth switch valve 31 and the second outlet in sequence. When the fourth switch valve 31 is opened, the water collector 32 is used to collect the water discharged from the purified water chamber 1212. The second flow control member 33 is used to adjust the water flow of the second branch pipe 30, i.e. to adjust the water flow from the water collector 32 to the raw water chamber 1211. The water collector 32 can collect water with less mineral content for subsequent flushing, so as to fully utilize the purified water filtered by the membrane filter cartridge 122 and avoid waste.

[0090] In the working process of the water production system, the user first sets the value T0 of the TDS of the water to be taken, detects the relationship between T2 and T0 of the second detection position 13, when T2≥T0, the subsequent water can be directly taken, and the mineral content meets the user's demand; when T2

[0091] After water intake is completed, open the second switch valve 21 and the flow regulating valve 22, close the first switch valve 15, the fourth switch valve 31 and the third switch valve 14, and start the second flow control device 33. Water with low mineral content in the water collector 32 can enter the raw water chamber 1211 and flush the harmful substances attached to the surface of the membrane filter element 122 as well as bacteria, organic matter, particulate impurities and other impurities in the raw water chamber 1211 to ensure the filtration effect of the membrane filter element 122. The wastewater generated by flushing is discharged through the first branch pipe 20.

[0092] Furthermore, a one-way valve 35 is also provided on the second branch pipe 30. The one-way valve 35 is located between the second flow control element 33 and the second outlet, and the direction of the one-way valve 35 is the flow direction from the second branch pipe 30 toward the original water chamber 1211, so as to prevent the original water in the original water chamber 1211 from flowing back into the water collector 32 through the second branch pipe 30.

[0093] like Figure 4 As shown, in another embodiment, the first switching valve 15 is located between the water inlet and the first flow control element 11; the second outlet is connected to the main pipeline 10 between the first switching valve 15 and the first flow control element 11, and the second branch pipeline 30 is also equipped with a water collector 32 and a fifth switching valve 34, which are sequentially located between the fourth switching valve 31 and the second outlet. When the fourth switching valve 31 is open, the water collector 32 is used to collect the water discharged from the purified water chamber 1212. The first switching valve 15 is used to control the connection and disconnection between the water collector 32 and the raw water chamber 1211, that is, to control whether the water in the water collector 32 flows to the raw water chamber 1211. In this embodiment, the steps of increasing the mineral content and the water intake steps are the same as in the previous embodiment, and will not be described in detail here.

[0094] After water intake is complete, open the fifth switch valve 34, the second switch valve 21, and the flow regulating valve 22, and close the first switch valve 15, the fourth switch valve 31, and the third switch valve 14. Activate the first flow control element 11, using it as a power source, allowing water with low mineral content in the water collector 32 to enter the raw water chamber 1211 and flush the membrane filter element 122 and the raw water chamber 1211, thereby reducing costs. During the flushing process, close the first switch valve 15 to prevent raw water from entering the main pipeline 10 and affecting the flushing effect.

[0095] In this embodiment, the one-way valve 35 is located between the fifth switch valve 34 and the second outlet, and the direction of the one-way valve 35 is the flow direction from the second branch pipe 30 toward the main pipe 10, so as to prevent the raw water in the main pipe 10 from flowing back into the water collector 32 through the second branch pipe 30.

[0096] like Figure 3As shown, in order to avoid the water in the water collector 32 exceeding the maximum capacity of the water collector 32, the water production system further comprises an overflow pipe 40, two ends of the overflow pipe 40 being communicated with the water collector 32 and the first branch pipe 20 respectively. When the water in the water collector 32 reaches a preset water level, the excess water is discharged into the first branch pipe 20 through the overflow pipe 40, and then discharged through the first branch pipe 20.

[0097] Of course, in other embodiments, the water collector 32 can also not be arranged on the second branch pipe 30, and the second outlet of the second branch pipe 30 is communicated with other water storage tanks or waste water tanks to collect water whose mineral content does not meet the user's demand.

[0098] In the present application, the water collector 32 can be a water tank or a pressure tank; the first flow control member 11 and the second flow control member 33 can both be a booster pump or a water pump; the first on-off valve 15, the second on-off valve 21, the third on-off valve 14, the fourth on-off valve 31 and the fifth on-off valve 34 can all be solenoid valves; and the flow regulating valve 22 can be an electrically controlled regulating valve. Moreover, the first flow control member 11, the second flow control member 33, the first on-off valve 15, the second on-off valve 21, the third on-off valve 14, the fourth on-off valve 31, the fifth on-off valve 34 and the flow regulating valve 22 can all be automatically controlled by an electric control system. The values of TDS obtained at the first detection site 123 and the second detection site 13 can both be obtained by the electric control system, and the electric control system controls the solenoid valves or the flow control members according to the obtained values of TDS.

[0099] As shown, Figures 5 to 7 The present application also provides a water production method for improving the mineral content, which is applied to the water production system for improving the mineral content described above, and comprises the following steps:

[0100] S100. obtaining a value T0 of TDS of preset water taking;

[0101] S500. adjusting to the water taking mode: closing the second on-off valve 21 and starting the first flow control member 11;

[0102] S600. obtaining a value T1 of TDS at the first detection site 123 in real time;

[0103] S700. determining whether T1 is less than or equal to T0;

[0104] S710. if not, opening the second on-off valve 21 and taking water;

[0105] S720. if yes, directly taking water.

[0106] In step S100, the value T0 of TDS of water to be taken by the user is obtained, which can be set according to the needs of each user, for example, when it is for the elderly or children, a better T0 can be set than for young people. The water production method can produce water containing TDS corresponding to T0 according to the T0 set by the user.

[0107] When the user adjusts to the water taking mode, the water production system executes step S500.

[0108] In step S600, the value T1 of TDS of the first detection position 123 is obtained, which is real-time changed in the actual process, and can be tested by the TDS tester in real time. It can be understood that in the system applied to the water production method, the value can be obtained in real time.

[0109] In step S700, it is determined whether T1 is less than or equal to T0. When T1 is less than or equal to T0, it indicates that the TDS value of the water in the clean water cavity 1212 is also less than T0, that is, the TDS value of the water flowing out from the water outlet is less than T0. When the user takes water for the first time, the user will first obtain water with a TSD value less than T0, and the second switch valve 21 is kept closed during the water taking process, so that the water in the raw water cavity 1211 cannot flow to the first branch pipeline 20. The TDS value of the water in the raw water cavity 1211 gradually rises. When T1 is greater than T0, the second switch valve 21 is opened, so that part of the water in the raw water cavity 1211 flows to the first branch pipeline 20 and flows out from the first opening, avoiding the TDS value of the water in the raw water cavity 1211 from continuously rising, so as to ensure that the water in the raw water cavity 1211 is maintained at about T0. After the first water taking is completed, the first flow control member 11 and the second switch valve 21 are closed. After the water in the filter cavity 121 is left for a period of time, the minerals before and after the membrane filter element 122 will migrate, so that the TDS values of the water in the raw water cavity 1211 and the clean water cavity 1212 are both T0. When the user takes water again, the first flow control member 11 is started, and the water with a TDS value of T0 in the clean water cavity 1212 will flow out first through the water outlet, so that the user receives water with a TDS value of T0, meeting the user's needs.

[0110] As shown in the specific steps S710, the steps further include: Figures 5 to 7

[0111] S711. The second switch valve 21 and the flow regulating valve 22 are opened;

[0112] S712. The TDS value T2 at the second detection position 13 is obtained in real time;

[0113] S713. T2 is compared with the pre-stored comparison table, and the opening degree of the flow regulating valve 22 corresponding to the current T2 is selected.

[0114] ​In step S712, the TDS value T2 of the second detection bit 13 is obtained. This value T2 changes in real time during the actual process, and it can be measured in real time by a TDS meter. It is understood that this value can be obtained in real time in the system applied to this water production method.

[0115] In step S713, the water production system pre-stores a lookup table relating T2 to the opening degree of the flow control valve 22 when T1 is maintained at T0. The electronic control system can select the corresponding opening degree of the flow control valve 22 from the lookup table based on the currently detected T2 value, and adjust the flow control valve 22 according to the selected opening degree. This allows the TDS value of the water in the raw water chamber 1211 to be precisely controlled at T0, thereby improving the accuracy of the mineral content in the water received by the user.

[0116] It is understandable that when the water production system does not have a second detection position 13, water can be drawn by directly opening the second switch valve 21 in step S710.

[0117] like Figures 5 to 7 As shown, after step S100, the following step is also included:

[0118] S200. Obtain the TDS value T2 at the second detection bit 13;

[0119] S300. Determine whether T2 is less than T0;

[0120] S310. If not, then stop working;

[0121] S320. If yes, then obtain the value T1 of TDS at the first detection bit 123;

[0122] S400. Determine whether T1 is less than T0;

[0123] S410. If not, stop working;

[0124] S420. If so, adjust to the mineral content enhancement mode: open the fourth switch valve 31, close the second switch valve 21 and the third switch valve 14, start the first flow control element 11, and repeat step S400.

[0125] In step S300, it is determined whether T2 is less than T0. If T2 is greater than or equal to T0, water can be directly drawn and the mineral content meets the user's needs. The water production system can stop working and step S400 can be omitted. If T2 is less than T0, step S400 needs to be executed.

[0126] In step S400, it is determined whether T1 is less than T0. When T1 is greater than or equal to T0, water can be directly drawn afterward, and the mineral content meets the user's needs, so the water production system can stop working. When T1 is less than T0, the mineral content needs to be increased. The first switch valve 15 and the fourth switch valve 31 are opened, the second switch valve 21 and the third switch valve 14 are closed, and the first flow control device 11 is activated. The water in the main pipeline 10 passes through the first filter element 16 and the filter assembly 12 in sequence and then flows into the water collector 32 through the second branch pipeline 30. The TDS value of the water in the raw water chamber 1211 gradually increases. When T1 equals T0, the first flow control device 11, the first switch valve 15 and the fourth switch valve 31 are closed. After the water in the filter chamber 121 has been left to stand for a period of time, due to the ion migration phenomenon of the membrane filter element 122 itself, the TDS value of the water in the raw water chamber 1211 and the purified water chamber 1212 is T0.

[0127] When the user adjusts to the water intake mode, when the water production system executes step S500, the water with a TDS value of T0 in the water purification chamber 1212 will first flow out through the water outlet, so that the TDS value of the water received by the user for the first time is T0, which better meets the user's needs.

[0128] like Figures 5 to 7 As shown, the water production method also includes step S800: adjusting to the rinsing mode.

[0129] In one embodiment, the second outlet is connected to the original water chamber 1211, and the second branch pipe 30 is provided with a second flow control element 33, which is located between the water collector 32 and the second outlet.

[0130] Step S800 includes:

[0131] S810. Open the second switching valve 21 and the flow regulating valve 22, close the third switching valve 14 and the fourth switching valve 31, and start the second flow control device 33.

[0132] In another embodiment, the second outlet is connected to the main pipeline 10 between the first switch valve 15 and the first flow control element 11, and a fifth switch valve 34 is provided on the second branch pipeline 30. The fifth switch valve 34 is located between the water collector 32 and the second outlet.

[0133] Step S800 includes:

[0134] S820. Open the fifth switch valve 34, the second switch valve 21 and the flow regulating valve 22, close the third switch valve 14, the fourth switch valve 31 and the first switch valve 15, and start the first flow control element 11.

[0135] In step S810 and step S820, the water with low mineral content in the water collector 32 can enter the raw water cavity 1211, and flush the harmful substances attached to the surface of the membrane filter element 122 and the bacteria, organic matter, particulate impurities and the like in the raw water cavity 1211, so as to ensure the filtering effect of the membrane filter element 122, and the waste water generated by the flushing is discharged through the first branch pipeline 20.

[0136] As shown in the illustrated embodiment, step S800 is performed to adjust to the flushing mode after each water taking. That is, the membrane filter element 122 is flushed after each water taking, so as to ensure the filtering effect of the membrane filter element 122 each time, and prolong the service life of the membrane filter element 122 and the water production system. Of course, in other embodiments, the membrane filter element 122 can be flushed after every two, three or more water takings, or the user can manually control the water production system to perform step S800 when he or she thinks that the membrane filter element 122 needs to be cleaned. Figure 5

[0137] As shown in the illustrated embodiment, the corresponding user is basically fixed for the same water purification product, and the demand for the mineral content contained in the water is also basically fixed for the same user. Therefore, after step S800 is completed, steps S200 to S400 are performed. That is, after each flushing is completed, the TDS values of the water in the raw water cavity 1211 and the purified water cavity 1212 are T0 according to the detection results of the first detection site 123 and the second detection site 13, and the ion migration phenomenon existing in the membrane filter element 122 itself, so as to prepare for the next water taking, and improve the working efficiency of the water production system. Figure 5 It can be understood that when the water production system is not provided with the second branch pipeline 30, steps S200 to S400 can also be omitted, and when the user needs to take water, step S500 can be directly performed after step S100; and after the user takes water, the water production system stops working, that is, step S800 can also be omitted. Or, when the water production system is provided with the second branch pipeline 30, but the second opening of the second branch pipeline 30 is not communicated with the main pipeline 10, after the user takes water, the water production system stops working, that is, step S800 can be omitted.

[0138] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0139]

[0140] ​​The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A water production system for increasing mineral content, characterized in that, include: A main pipeline (10) is provided with an inlet, a first flow control element (11), a filter assembly (12), and an outlet in sequence. The filter assembly (12) includes a filter chamber (121) and a membrane filter element (122). The membrane filter element (122) is disposed in the filter chamber (121) and divides the filter chamber (121) into a raw water chamber (1211) communicating with the first flow control element (11) and a purified water chamber (1212) communicating with the outlet. A first detection position (123) is provided in the raw water chamber (1211). The first branch pipe (20) is provided with a first inlet, a second switch valve (21) and a first outlet in sequence. The first inlet is connected to the raw water chamber (1211).

2. The water production system according to claim 1, characterized in that, The main pipeline (10) is also provided with a second detection position (13), which is located between the first flow control element (11) and the filter assembly (12); The first branch pipeline (20) is also provided with a flow regulating valve (22), which is located between the second switch valve (21) and the first outlet.

3. The water production system according to claim 2, characterized in that, A third switch valve (14) is also provided on the main pipeline (10), and the third switch valve (14) is located between the filter assembly (12) and the water outlet. The water production system also includes a second branch pipe (30), which is provided with a second inlet, a fourth switch valve (31) and a second outlet in sequence. The second inlet is connected to the water purification chamber (1212).

4. The water production system according to claim 3, characterized in that, The second outlet is connected to the original water chamber (1211), and the second branch pipe (30) is also provided with a water collector (32) and a second flow control device (33). The water collector (32) and the second flow control device (33) are arranged sequentially between the fourth switch valve (31) and the second outlet.

5. The water production system according to claim 3, characterized in that, The main pipeline (10) is also provided with a first switching valve (15), which is located between the water inlet and the first flow control element (11). The second outlet is connected to the main pipeline (10) between the first switch valve (15) and the first flow control element (11). The second branch pipeline (30) is also provided with a water collector (32) and a fifth switch valve (34). The water collector (32) and the fifth switch valve (34) are sequentially located between the fourth switch valve (31) and the second outlet.

6. The water production system according to claim 5, characterized in that, The water production system also includes an overflow pipe (40), the two ends of which are connected to the water collector (32) and the first branch pipe (20), respectively.

7. A method for improving the mineral content of produced water, applied to the water production system for improving the mineral content as described in any one of claims 1 to 6, characterized in that, Including the following steps: Obtain the preset TDS value T0 of the water sample; Adjust to water intake mode: Close the second switch valve (21) and start the first flow control device (11); The value T1 of TDS at the first detection bit (123) is obtained in real time; Determine whether T1 is less than or equal to T0; If not, open the second switch valve (21) and take water; If so, then take water directly.

8. The water production method according to claim 7, characterized in that, The main pipeline (10) is also equipped with a second detection position (13), and the first branch pipeline (20) is also equipped with a flow regulating valve (22); if the above steps are not true, then the second switch valve (21) is opened and water is taken, and the steps also include: Open the second switching valve (21) and the flow regulating valve (22); The TDS value T2 at the second detection bit (13) is acquired in real time; Compare T2 with the pre-stored lookup table and select the opening degree of the flow control valve (22) corresponding to the current T2.

9. The water production method according to claim 7, characterized in that, The main pipeline (10) is also equipped with a third switch valve (14), and the water production system also includes a second branch pipeline (30), on which a fourth switch valve (31) is provided; after obtaining the preset TDS value T0 of the water intake in the step, the following steps are also included: Obtain the TDS value T2 at the second detection bit (13); Determine whether T2 is less than T0; If not, then stop working; If so, then obtain the value T1 of TDS at the first detection bit (123); Determine whether T1 is less than T0; If not, then stop working; If so, adjust to the mineral content enhancement mode: open the fourth switch valve (31), close the second switch valve (21) and the third switch valve (14), start the first flow control device (11), and repeatedly execute the step of determining whether T1 is less than T0.

10. The water production method according to claim 9, characterized in that, The second branch pipe (30) is also equipped with a water collector (32) and a second flow control device (33); the water production method further includes the following steps: Adjust to flushing mode: Open the second switch valve (21) and flow regulating valve (22), close the third switch valve (14) and fourth switch valve (31), and activate the second flow control device (33); or, The main pipeline (10) is also equipped with a first switch valve (15), and the second branch pipeline (30) is also equipped with a water collector (32) and a fifth switch valve (34); the water production method further includes the following steps: Adjust to flushing mode: Open the fifth switch valve (34), the second switch valve (21) and the flow regulating valve (22), close the third switch valve (14), the fourth switch valve (31) and the first switch valve (15), and start the first flow control device (11).

11. The water production method according to claim 10, characterized in that, After each water draw, follow the steps outlined above to adjust to the rinsing mode.

12. The water production method according to claim 10, characterized in that, After completing the adjustment to the rinsing mode as described in step 1, proceed to step 2 to obtain the TDS value T2 at the second detection bit (13); Determine whether T2 is less than T0; If not, then stop working; If so, then obtain the value T1 of TDS at the first detection bit (123); Determine whether T1 is less than T0; If not, then stop working; If so, open the fourth switch valve (31), close the second switch valve (21) and the third switch valve (14), start the first flow control device (11), and repeatedly execute the step of determining whether T1 is less than T0.

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