CN219637055U - Water purification system and water purification equipment - Google Patents

Abstract

The utility model discloses a water purification system and water purification equipment, wherein a composite filter element is communicated with a tap water pipeline and a drinking water pipeline, a second water outlet end is communicated with one end of a booster pump, and the other end of the booster pump, one end of a first electromagnetic valve and one end of a second electromagnetic valve are communicated in a three-way structure; the other end of the second electromagnetic valve is communicated with a second water inlet and outlet end of the electrodialysis module, the other end of the first electromagnetic valve is communicated with a third water inlet end of the membrane filter element, the third water outlet end of the membrane filter element, one end of the third electromagnetic valve and the first water inlet and outlet end of the electrodialysis module are communicated in a three-way structure, and the other end of the third electromagnetic valve is communicated with the second water inlet end of the composite filter element; the second water inlet and outlet end of the electrodialysis module is communicated with one end of a fourth electromagnetic valve, and the other end of the fourth electromagnetic valve, the fourth water outlet end of the membrane filter core and the concentrated water pipeline are communicated in a tee joint structure. The pure water treated by the membrane filter core can be utilized to regenerate the electrodialysis module, and meanwhile, the pure water of the membrane filter core is discharged during regeneration, so that the water consumption of a user is not influenced.

Description

Water purification system and water purification equipment

Technical Field

The utility model relates to the technical field of water purification treatment, in particular to a water purification system and water purification equipment.

Background

With the improvement of living standard of people, people pay more attention to water quality sanitation, and families are provided with water purifying equipment to become a trend. The water purifying equipment has a plurality of products, and because the contents of mineral substances needed by tea making, porridge cooking, soup cooking, coffee brewing and the like are different, in order to improve the diversity of the water quality of effluent, the household water purifying equipment is provided with the water purifying equipment which is usually provided with an electrodialysis module.

Because the electrodialysis module cannot continuously produce water, the electrodialysis module needs to be regenerated after water is purified to a certain degree so as to recover the adsorption capacity of the electrodialysis module. However, in the electrodialysis module regeneration process, the water purifying device cannot discharge pure water, which affects the water consumption of users.

Disclosure of Invention

The utility model provides a water purifying system and water purifying equipment, and aims to solve the problem that the water consumption of a user is affected because pure water cannot be discharged in the regeneration process of an electrodialysis module of the traditional water purifying equipment.

In order to solve the technical problems, the utility model adopts a technical scheme that the water purifying system comprises a composite filter element, a booster pump, a membrane filter element, an electrodialysis module, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve, wherein the composite filter element is provided with a first water inlet end, a second water inlet end, a first water outlet end and a second water outlet end, the electrodialysis module is provided with a first water inlet end and a second water inlet end, and the membrane filter element is provided with a third water inlet end, a third water outlet end and a fourth water outlet end;

the first water inlet end is communicated with a tap water pipeline, the first water outlet end is communicated with a drinking water pipeline, the second water outlet end is communicated with one end of the booster pump, the other end of the booster pump, one end of the first electromagnetic valve and one end of the second electromagnetic valve are communicated in a three-way structure, the other end of the second electromagnetic valve is communicated with the second water inlet end, the other end of the first electromagnetic valve is communicated with the third water inlet end, one end of the third electromagnetic valve and the first water inlet end are communicated in a three-way structure, the other end of the third electromagnetic valve is communicated with the second water inlet end, the second water inlet end is also communicated with one end of the fourth electromagnetic valve, and the other end of the fourth electromagnetic valve, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure;

opening the booster pump, the first electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve, wherein tap water of the tap water pipeline flows into the membrane filter element through the booster pump and the first electromagnetic valve after being pretreated through the composite filter element, and part of pure water treated by the membrane filter element flows into the composite filter element through the third electromagnetic valve for being reprocessed and then is discharged from the drinking water pipeline; and the other part of water discharged from the membrane filter core is discharged from the concentrated water pipeline after flowing into the electrodialysis module to carry out regenerative electrodialysis.

In one embodiment, the passage of the three-way structure where the third water outlet end is located is further provided with a first check valve, and an inlet end of the first check valve is communicated with the third water outlet end.

In one embodiment, the passage of the tee structure where the fourth water outlet end is located is further provided with a concentrated water electromagnetic valve.

In one embodiment, the three-way structure of the first water inlet and outlet end is further provided with a flowmeter.

In one embodiment, the water purification system further comprises a pressure relief valve, the other end of the fourth electromagnetic valve is communicated with one end of the pressure relief valve, and the other end of the pressure relief valve, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure.

In one embodiment, the water purification system further comprises a second check valve, the other end of the fourth electromagnetic valve is communicated with the inlet end of the second check valve, and the outlet end of the second check valve, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure; the third water outlet end is respectively communicated with the drinking water pipeline, one end of the third electromagnetic valve and the first water inlet and outlet end.

In one embodiment, a pressure reducing valve is further arranged between the second electromagnetic valve and the second water inlet and outlet end.

In one embodiment, a first wastewater ratio module is further arranged between the second electromagnetic valve and the second water inlet and outlet end.

In one embodiment, the water purification system further comprises a second waste water ratio module, wherein the outlet end of the second check valve is communicated with one end of the second waste water ratio module, and the other end of the second waste water ratio module, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure.

The utility model further provides water purifying equipment for solving the technical problems, and the water purifying equipment comprises the water purifying system.

Compared with the prior art, the water purification system and the water purification equipment provided by the embodiment of the utility model have the following advantages:

1. in the water purification system provided by the embodiment of the utility model, the first water inlet end of the composite filter element is communicated with a tap water pipeline, the first water outlet end of the composite filter element is communicated with a drinking water pipeline, the second water outlet end of the composite filter element is communicated with one end of a booster pump, and the other end of the booster pump, one end of a first electromagnetic valve and one end of a second electromagnetic valve are communicated in a three-way structure; the other end of the second electromagnetic valve is communicated with a second water inlet and outlet end of the electrodialysis module, the other end of the first electromagnetic valve is communicated with a third water inlet end of the membrane filter element, the third water outlet end of the membrane filter element, one end of the third electromagnetic valve and the first water inlet and outlet end of the electrodialysis module are communicated in a three-way structure, and the other end of the third electromagnetic valve is communicated with the second water inlet end of the composite filter element; the second water inlet and outlet end of the electrodialysis module is communicated with one end of a fourth electromagnetic valve, and the other end of the fourth electromagnetic valve, the fourth water outlet end of the membrane filter core and the concentrated water pipeline are communicated in a tee joint structure. By the arrangement, the booster pump, the first electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are opened, tap water of a tap water pipeline flows into the membrane filter element through the booster pump and the first electromagnetic valve after being pretreated through the composite filter element, and part of pure water treated by the membrane filter element flows into the composite filter element through the third electromagnetic valve for being reprocessed and is discharged from the drinking water pipeline; the other part of water discharged from the membrane filter core treatment flows into the electrodialysis module to be regenerated and is discharged from the water concentration pipeline through the fourth electromagnetic valve, so that the problem that the water consumption of users is affected due to the fact that pure water cannot be discharged in the regeneration process of the electrodialysis module by the traditional water purifying equipment is solved, the electrodialysis module can be regenerated by using the pure water treated by the membrane filter core, and meanwhile, the pure water of the membrane filter core can be discharged during regeneration of the electrodialysis module, and the water consumption of users is not affected.

In addition, through setting up like this, can also adjust the play water quality of electrodialysis module through changing the desalination rate according to the electric field intensity of electrodialysis module.

2. The function of the water purifying device provided by the embodiment of the utility model is the same as that of the water purifying system, and is not described herein.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present utility model, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a water purification system according to a first embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a water purification system according to a second embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of a water purification system according to a third embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a water purification system according to a fourth embodiment of the present utility model.

The attached drawings are used for identifying and describing:

10. a water purification system; 20. a water purification system; 30. a water purification system; 40. a water purification system;

101. a composite filter element; 102. an electrodialysis module; 103. a membrane cartridge; 104. a booster pump; 105. a first check valve; 106. a concentrated water electromagnetic valve; 107. a first electromagnetic valve; 108. a second electromagnetic valve; 109. a third electromagnetic valve; 110. a fourth electromagnetic valve; 111. a first flowmeter; 112. a pressure release valve; 113. a pressure reducing valve; 201. a second check valve; 301. a first wastewater ratio module; 302. a second flowmeter; 401. a second wastewater ratio module;

1011. a first water inlet end; 1012. a second water inlet end; 1013. a first water outlet end; 1014. a second water outlet end; 1021. a first water inlet and outlet end; 1022. a second water inlet and outlet end; 1031. a third water inlet end; 1032. a third water outlet end; 1033. and a fourth water outlet end.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Embodiments of the utility model are illustrated in the accompanying drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It will be understood that the terms "first," "second," "third," and "fourth," etc., as used herein, may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

Referring to fig. 1, a water purification system 10 according to a first embodiment of the present utility model is provided, and the water purification system 10 includes a composite filter element 101, an electrodialysis module 102 and a membrane filter element 103, wherein the composite filter element 101 is respectively communicated with the electrodialysis module 102 and the membrane filter element 103.

Specifically, the composite filter element 101 is provided with a first water inlet end 1011, a second water inlet end 1012, a first water outlet end 1013, and a second water outlet end 1014.

Specifically, the composite filter element 101 includes a pre-filter element in communication with the first water inlet end 1011 and the first water outlet end 1013 and a post-filter element in communication with the second water inlet end 1012 and the second water outlet end 1014. The pre-filter element is used for pre-treating tap water to remove impurities such as sediment, rust, residual chlorine and the like in the water. The front filter core mainly comprises filter materials such as PP cotton, paper folding PP, non-woven fabrics, active carbon and the like. The post filter element is used for further filtering the water discharged from the membrane filter element 103 or the water discharged from the electrodialysis module 102, and mainly improves the taste of the discharged water. In order to further filter out microorganisms in water, the rear filter element mainly comprises filter materials such as non-woven fabrics, activated carbon, paper folding PP, paper folding films, ultrafiltration films, microfiltration films and the like, and can filter out microorganisms such as bacteria and viruses which cannot be treated by the electrodialysis module 102.

Specifically, the membrane filter element 103 is used for filtering the water pretreated by the composite filter element 101 to remove ions, microorganisms and the like in the water, so as to prepare purer water. The membrane filter element 103 mainly comprises a reverse osmosis membrane, a nanofiltration membrane and the like.

In particular, electrodialysis module 102 uses the principle of electrodialysis to purify water for drinking. The electrodialysis module 102 comprises selectively permeable membranes and electrodes, and is based on the principle that a solution flows through the electrodialysis module, and charged solute particles (e.g., ions) in the solution migrate through the selectively permeable membranes under the action of an electric field to purify and separate substances.

Specifically, the selectively permeable membrane includes a negative membrane that can only adsorb or allow anions to permeate therethrough and a positive membrane that can only adsorb or allow cations to permeate therethrough. The electrode comprises a cathode and an anode, and the electrode mainly plays a role of forming an electric field and driving ions in water to migrate in a certain direction.

It will be appreciated that during operation of the electrodialysis module 102, the electric field strength is adjusted by adjusting the input voltage, so that the desalination rate of the electrodialysis process can be adjusted, i.e. the effluent quality of the electrodialysis module 102 can be adjusted. When a high mineral content is required, the desalination rate of the electrodialysis module 102 is reduced, so that a part of mineral elements can be reserved.

In the embodiment of the present utility model, the electrodialysis module 102 adopts bipolar membrane electrodialysis, which is characterized in that a cathode membrane and a anode membrane are combined together, namely, a bipolar membrane (the cathode membrane and the Yang Mo are integrated), and a concentrate chamber is eliminated. When bipolar membrane electrodialysis is used for treating water, ions in the water can be adsorbed on the bipolar membrane, and the bipolar membrane needs to be regenerated after being adsorbed to a certain degree, so that the adsorption capacity of the bipolar membrane is recovered.

With continued reference to fig. 1, further, the water purification system 10 further includes a booster pump 104, a first check valve 105, a concentrated water valve 106, a first solenoid valve 107, a second solenoid valve 108, a third solenoid valve 109, a fourth solenoid valve 110, and a first flowmeter 111.

Specifically, the electrodialysis module 102 is provided with a first water inlet and outlet end 1021 and a second water inlet and outlet end 1022, and the membrane filter element 103 is provided with a third water inlet end 1031, a third water outlet end 1032 and a fourth water outlet end 1033.

The first water inlet end 1011 communicates with the tap water line and the first water outlet end 1013 communicates with the potable water line. The second water outlet 1014 is connected to one end of the booster pump 104, the other end of the booster pump 104, one end of the first solenoid valve 107 and one end of the second solenoid valve 108 are connected in a three-way structure, the other end of the second solenoid valve 108 is connected to the second water inlet 1022, the other end of the first solenoid valve 107 is connected to the third water inlet 1031, the third water outlet 1032, one end of the third solenoid valve 109 and the first water inlet 1021 are connected in a three-way structure, the other end of the third solenoid valve 109 is connected to the second water inlet 1012, the second water inlet 1022 is also connected to one end of the fourth solenoid valve 110, and the other end of the fourth solenoid valve 110, the fourth water outlet 1033 and the concentrate line are connected in a three-way structure.

The first check valve 105 is disposed on the three-way passageway where the third water outlet port 1032 is located, and the inlet port of the first check valve 105 is in communication with the third water outlet port 1032, i.e. water can only flow in from the third water outlet port 1032 through the inlet port of the first check valve 105 and out from the outlet port of the first check valve 105.

The concentrated water valve 106 is disposed on a three-way path where the fourth water outlet 1033 is located, and the concentrated water valve 106 is used for discharging concentrated water.

The first flowmeter 111 is disposed on a three-way path where the first water inlet and outlet end 1021 is located, and the first flowmeter 111 is used for testing and controlling water flow.

With continued reference to fig. 1, the water purification system 10 further includes a pressure relief valve 112, where the pressure relief valve 112 is disposed on a three-way path of the fourth electromagnetic valve 110. Specifically, the other end of the fourth solenoid valve 110 communicates with one end of the relief valve 112, and the other end of the relief valve 112, the fourth water outlet 1033, and the concentrate line communicate in a three-way structure. The pressure release valve 112 is used for controlling the one-way flow of the water path of the regeneration water of the electrodialysis module 102, and performing a certain flow restriction on the regeneration water of the electrodialysis module 102, so as to ensure that the flow of the drinking water in the regeneration mode of the electrodialysis module 102 is not reduced too much.

Further, the water purification system 10 further includes a pressure reducing valve 113, and the pressure reducing valve 113 is disposed between the second electromagnetic valve 108 and the second water inlet and outlet end 1022. The pressure reducing valve 113 is used for controlling the water pressure of the electrodialysis module 102.

In the embodiment of the utility model, the first water inlet end 1011 of the composite filter element 101 is communicated with a tap water pipeline, the first water outlet end 1013 of the composite filter element 101 is communicated with a drinking water pipeline, the second water outlet end 1014 of the composite filter element 101 is communicated with one end of the booster pump 104, and the other end of the booster pump 104, one end of the first electromagnetic valve 107 and one end of the second electromagnetic valve 108 are communicated in a three-way structure; the other end of the second electromagnetic valve 108 is communicated with a second water inlet and outlet end 1022 of the electrodialysis module 102, the other end of the first electromagnetic valve 107 is communicated with a third water inlet end 1031 of the membrane filter element 103, the third water outlet end 1032 of the membrane filter element 103, one end of the third electromagnetic valve 109 and the first water inlet and outlet end 1021 of the electrodialysis module 102 are communicated in a three-way structure, and the other end of the third electromagnetic valve 109 is communicated with a second water inlet end 1012 of the composite filter element 101; the second water inlet and outlet end 1022 of the electrodialysis module 102 is communicated with one end of the fourth electromagnetic valve 110, and the other end of the fourth electromagnetic valve 110, the fourth water outlet end 1033 of the membrane filter element 103 and the concentrate pipeline are communicated in a three-way structure. The booster pump 104, the first electromagnetic valve 107, the third electromagnetic valve 109 and the fourth electromagnetic valve 110 are opened, so that tap water from a tap water pipeline flows into the membrane filter element 103 through the booster pump 104 and the first electromagnetic valve 107 after being pretreated through the composite filter element 101, and part of pure water treated by the membrane filter element 103 flows into the composite filter element 101 through the third electromagnetic valve 109 for being reprocessed and is discharged from the drinking water pipeline; the other part of effluent water treated by the membrane filter element 103 flows into the electrodialysis module 102 to be discharged from the concentrated water pipeline through the fourth electromagnetic valve 110 after being regenerated and electrodialysis is carried out, so that the problem that the water consumption of users is affected due to the fact that pure water cannot be discharged in the regeneration process of the electrodialysis module by the traditional water purifying equipment is solved, the electrodialysis module 102 can be regenerated by the pure water treated by the membrane filter element 103, meanwhile, the pure water can be discharged by the membrane filter element 103 during the regeneration of the electrodialysis module 102, and the water consumption of users is not affected.

In addition, by such arrangement, the water quality of the effluent of the electrodialysis module 102 can be adjusted by changing the desalination rate according to the electric field intensity of the electrodialysis module 102.

For ease of understanding, embodiments of the present utility model are described herein with respect to the logic of operation of water purification system 10. The water purification system 10 includes a pure water mode, an electrodialysis regeneration mode, and a pure water mode at the time of electrodialysis regeneration. The method is specifically as follows:

pure water mode: the booster pump 104, the first electromagnetic valve 107 and the third electromagnetic valve 109 are opened, tap water of a tap water pipeline flows into the membrane filter core 103 through the booster pump 104 and the first electromagnetic valve 107 after being pretreated by the front filter core of the composite filter core 101, pure water treated by the membrane filter core 103 flows into the rear filter core of the composite filter core 101 through the third electromagnetic valve 109 for being reprocessed, and then is discharged from the tap water pipeline.

Electroosmotic water pattern: the second electromagnetic valve 108 and the third electromagnetic valve 109 are opened, tap water of the tap water pipeline flows into the electrodialysis module 102 through the booster pump 104 and the second electromagnetic valve 108 after being pretreated by the front filter element of the composite filter element 101, and the electroosmosis water treated by the electrodialysis module 102 flows into the rear filter element of the composite filter element 101 through the third electromagnetic valve 109 for being reprocessed and is discharged from the tap water pipeline.

Electrodialysis regeneration mode: the booster pump 104, the first electromagnetic valve 107 and the fourth electromagnetic valve 110 are opened, the electrodes of the electrodialysis module 102 are reversed, namely, the anode and cathode are exchanged, tap water in a tap water pipeline enters a regeneration state, after being pretreated by a preposed filter element of the composite filter element 101, flows into the membrane filter element 103 through the booster pump 104 and the first electromagnetic valve 107, pure water treated by the membrane filter element 103 flows into the electrodialysis module 102, and after the electrodialysis is regenerated by the pure water, the pure water is discharged from a concentrated water pipeline through the fourth electromagnetic valve 110.

Pure water mode is generated during electrodialysis regeneration: the booster pump 104, the first electromagnetic valve 107, the third electromagnetic valve 109 and the fourth electromagnetic valve 110 are opened, tap water of a tap water pipeline flows into the membrane filter element 103 through the booster pump 104 and the first electromagnetic valve 107 after being pretreated by a front filter element of the composite filter element 101, and part of pure water treated by the membrane filter element 103 flows into a rear filter element of the composite filter element 101 through the third electromagnetic valve 109 for being reprocessed and is discharged from the tap water pipeline; the other part of the effluent water treated by the membrane filter core 103 flows into the electrodialysis module 102 for regenerative electrodialysis and is discharged from the concentrated water pipeline through the fourth electromagnetic valve 110.

It can be appreciated that when the electrodialysis module 102 is normally producing water, the first water inlet and outlet end 1021 is the water outlet of the electrodialysis module 102, and the second water inlet and outlet end 1022 is the water inlet of the electrodialysis module 102. When the electrodialysis module 102 performs electrodialysis regeneration, the water inlet and the water outlet are switched, the first water inlet and outlet end 1021 is the water inlet of the electrodialysis module 102, and the second water inlet and outlet end 1022 is the water outlet of the electrodialysis module 102.

Example two

Referring to fig. 2, a second embodiment of the present utility model provides a water purifying system 20, and the water purifying system 20 of the second embodiment is different from the water purifying system 10 of the first embodiment in that: the water purification system 20 of the second embodiment adjusts the water outlet path between the membrane filter 103 and the drinking water pipeline, and allows pure water of the membrane filter 103 to be directly discharged from the drinking water pipeline in the pure water mode. In addition, the water purification system 20 of the second embodiment has no pressure release valve, and a second check valve 201 is added, and the second check valve is arranged between the three-way structure from the water outlet of the membrane filter core 103 to the water outlet of the electrodialysis module 102.

Specifically, the water purification system 20 further includes a second check valve 201, and the other end of the fourth solenoid valve 110 is in communication with the inlet end of the second check valve 201, i.e., water can only flow in from the other end of the fourth solenoid valve 110 through the inlet end of the second check valve 201 and out of the outlet end of the second check valve 201. The outlet end of the second check valve 201, the fourth outlet end 1033 and the concentrate line are communicated in a three-way structure. The third water outlet 1032 is respectively connected to the drinking water pipeline, one end of the third solenoid valve 109, and the first water inlet and outlet 1021. By providing the second check valve 201, the electrodialysis water of the electrodialysis module 102 can be prevented from being confused with the pure water of the membrane cartridge 103 before passing through the post-cartridge of the composite cartridge 101.

The water purification system 20 of the second embodiment includes a pure water mode, an electrodialysis regeneration mode, and a pure water mode at the time of electrodialysis regeneration. The electrodialysis water supply mode, the electrodialysis regeneration mode, and the electrodialysis regeneration pure water supply mode are the same as those of the water purification system 10 of the first embodiment. The pure water mode of the water purification system 20 of the second embodiment is as follows:

pure water mode: tap water from a tap water pipeline is pretreated by a pre-filter element of the composite filter element 101, flows into the membrane filter element 103 through the booster pump 104 and the first electromagnetic valve 107, and pure water treated by the membrane filter element 103 is directly discharged from the tap water pipeline after the booster pump 104, the first electromagnetic valve 107 and the third electromagnetic valve 109 are opened.

The structure and function of the water purification system 20 of the second embodiment are the same as those of the water purification system 10 of the first embodiment, and will not be described again.

Example III

Referring to fig. 3, a third embodiment of the present utility model provides a water purifying system 30, and the water purifying system 30 of the third embodiment is different from the water purifying system 20 of the second embodiment in that: the water purification system 30 of the third embodiment changes the pressure reducing valve into the first waste water ratio module 301, the first waste water ratio module 301 is disposed between the second electromagnetic valve 108 and the second water inlet and outlet end 1022, and the first waste water ratio module 301 is used for controlling the water pressure of the electrodialysis module 102.

Further, the water purification system 30 further comprises a second flowmeter 302, and the second flowmeter 302 is arranged in the passage of the drinking water pipeline. By providing the second flowmeter 302, the flow rate of the water of the drinking water pipe is measured.

The water purification system 30 of the third embodiment includes a pure water mode, an electrodialysis regeneration mode, and a pure water discharge mode during electrodialysis regeneration, and the operation logic of the four modes is the same as that of the water purification system 20 of the second embodiment.

The water purification system 30 of the third embodiment has the same structure and function as those of the water purification system 20 of the second embodiment, and will not be described again.

Example IV

Referring to fig. 4, a fourth embodiment of the present utility model provides a water purifying system 40, and the water purifying system 40 of the fourth embodiment is different from the water purifying system 30 of the third embodiment in that: the water purification system 40 of the fourth embodiment adds a second waste water ratio module 401, and the outlet end of the second check valve 201 is communicated with one end of the second waste water ratio module 401, and the other end of the second waste water ratio module 401, the fourth water outlet end 1033 and the concentrated water pipeline are communicated in a three-way structure.

In the embodiment of the utility model, the second check valve 201 is arranged, so that the water outlet waterway can flow unidirectionally during the electrodialysis regeneration of the electrodialysis module 102. By arranging the second wastewater ratio module 401, the water discharged during electrodialysis regeneration of the electrodialysis module 102 can be limited to a certain extent, so that the flow of drinking water is not reduced too much when the pure water is discharged during electrodialysis regeneration.

The water purification system 40 of the fourth embodiment includes a pure water mode, an electrodialysis regeneration mode, and a pure water discharge mode during electrodialysis regeneration, and the operation logic of the four modes is the same as that of the water purification system 30 of the third embodiment.

Example five

A fifth embodiment of the present utility model provides a water purifying apparatus, which includes a water purifying system, and the water purifying system may be the water purifying system in the first embodiment, the second embodiment, the third embodiment, or the fourth embodiment.

The water purifying apparatus provided in the fifth embodiment of the present utility model has the same functions as the water purifying systems provided in the first to fourth embodiments, and will not be described herein.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A water purification system, characterized by: the water purification system comprises a composite filter element, a booster pump, a membrane filter element, an electrodialysis module, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve, wherein the composite filter element is provided with a first water inlet end, a second water inlet end, a first water outlet end and a second water outlet end, the electrodialysis module is provided with a first water inlet end and a second water inlet end, and the membrane filter element is provided with a third water inlet end, a third water outlet end and a fourth water outlet end;

the first water inlet end is communicated with a tap water pipeline, the first water outlet end is communicated with a drinking water pipeline, the second water outlet end is communicated with one end of the booster pump, the other end of the booster pump, one end of the first electromagnetic valve and one end of the second electromagnetic valve are communicated in a three-way structure, the other end of the second electromagnetic valve is communicated with the second water inlet end, the other end of the first electromagnetic valve is communicated with the third water inlet end, one end of the third electromagnetic valve and the first water inlet end are communicated in a three-way structure, the other end of the third electromagnetic valve is communicated with the second water inlet end, the second water inlet end is also communicated with one end of the fourth electromagnetic valve, and the other end of the fourth electromagnetic valve, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure;

opening the booster pump, the first electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve, wherein tap water of the tap water pipeline flows into the membrane filter element through the booster pump and the first electromagnetic valve after being pretreated through the composite filter element, and part of pure water treated by the membrane filter element flows into the composite filter element through the third electromagnetic valve for being reprocessed and then is discharged from the drinking water pipeline; and the other part of water discharged from the membrane filter core is discharged from the concentrated water pipeline after flowing into the electrodialysis module to carry out regenerative electrodialysis.

2. The water purification system of claim 1, wherein: the passageway of tee bend structure that third water outlet end place still is provided with first check valve, the entry end of first check valve with third water outlet end intercommunication.

3. The water purification system of claim 2, wherein: the passage of the tee joint structure where the fourth water outlet end is positioned is also provided with a concentrated water electromagnetic valve.

4. A water purification system as recited in claim 3, wherein: the passageway of tee bend structure that first business turn over water end was located still is provided with the flowmeter.

5. The water purification system of claim 4, wherein: the water purification system further comprises a pressure relief valve, the other end of the fourth electromagnetic valve is communicated with one end of the pressure relief valve, and the other end of the pressure relief valve, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure.

6. The water purification system of claim 5, wherein: the water purification system further comprises a second check valve, the other end of the fourth electromagnetic valve is communicated with the inlet end of the second check valve, and the outlet end of the second check valve, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure; the third water outlet end is respectively communicated with the drinking water pipeline, one end of the third electromagnetic valve and the first water inlet and outlet end.

7. The water purification system of any one of claims 1 to 6, wherein: and a pressure reducing valve is further arranged between the second electromagnetic valve and the second water inlet and outlet end.

8. The water purification system of claim 6, wherein: and a first wastewater ratio module is further arranged between the second electromagnetic valve and the second water inlet and outlet end.

9. The water purification system of claim 8, wherein: the water purification system further comprises a second wastewater ratio module, the outlet end of the second check valve is communicated with one end of the second wastewater ratio module, and the other end of the second wastewater ratio module, the fourth water outlet end and the concentrated water pipeline are communicated in a three-way structure.

10. A water purification apparatus, characterized in that: the water purification apparatus comprising the water purification system as claimed in any one of claims 1 to 9.