CN112499795A

CN112499795A - Water purification system

Info

Publication number: CN112499795A
Application number: CN202011502484.1A
Authority: CN
Inventors: 杨华; 周栋; 张涛; 龚圆杰; 何海; 范婷; 赵保文
Original assignee: Shanghai Chunmi Electronics Technology Co Ltd
Current assignee: Shanghai Chunmi Electronics Technology Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-03-16

Abstract

The present disclosure relates to a water purification system, this water purification system includes: the prepositive water-drive composite filter pump is integrated with a prepositive filter element and a water-drive tank; the system comprises a waste water pipeline, a water storage pipeline, a water inlet pipeline, a water purification pipeline, a water storage pipeline, a high-pressure switch and a first switch, wherein one end of the water storage pipeline is communicated with a pure water outlet, the other end of the water storage pipeline is communicated with a front core, a reverse osmosis filter element, a water inlet pipeline and the water purification pipeline, a first electromagnetic valve and a water storage port of a pressurization water displacement composite filter element are arranged on the water storage pipeline, a return pipeline is communicated with the water storage port and a pure water inlet of the reverse osmosis filter element, and a second; one end of the cold water pipeline is a cold water interface of the water purification system, the other end of the cold water pipeline is communicated with a pure water outlet of the reverse osmosis filter element, and a second switch is arranged on the cold water pipeline and used for controlling the reverse osmosis filter element to make pure water flow to the cold water interface. This technical scheme can avoid appearing that first cup water TDS is higher, improves user's water experience, reduces water purification system's whole volume.

Description

Water purification system

Technical Field

The utility model relates to a water purification technical field especially relates to a water purification system.

Background

Along with the improvement of living standard of people, people pay more and more attention to water quality sanitation, and a trend that a family is provided with a water purification system is formed; if the water purification system is not used for a long time, ions in front of an RO (Reverse Osmosis) membrane in an RO (Reverse Osmosis) filter element in the water purification system penetrate through the RO membrane to permeate to a pure water end, so that TDS (Total dissolved solids) of first cup water is high, and user experience is influenced.

In order to solve the problems, a pure water bubble film technology can be adopted in the prior art, a water tank and a water drive tank are separately arranged in a water purification system, but the separate water tank and the water drive tank occupy the internal space of the water purification system, so that the whole volume of the water purification system is large, and the installation of other household appliances in a water tank cabinet is influenced.

Disclosure of Invention

In order to overcome the problems in the related art, the embodiment of the disclosure provides a water purification system. The technical scheme is as follows:

according to an aspect of the disclosed embodiment, a water purification system is provided, including leading water drive composite filter core and the reverse osmosis filter core that integrate with leading filter core and water drive jar, water purification system still includes:

one end of the water inlet pipeline is a tap water interface, and the other end of the water inlet pipeline is communicated with a tap water inlet of the preposed water drive composite filter element;

the water purification pipeline is communicated with the water purification water outlet of the preposed water drive composite filter element and the water purification water inlet of the reverse osmosis filter element, and a first electromagnetic valve and a booster pump are arranged on the water purification pipeline;

one end of the waste water pipeline is a waste water interface of the water purification system, and the other end of the waste water pipeline is communicated with a waste water outlet of the reverse osmosis filter element;

one end of the water storage pipeline is communicated with the pure water outlet, the other end of the water storage pipeline is communicated with the water storage port of the preposed water drive composite filter element, a high-voltage switch and a first switch are arranged on the water storage pipeline, and the first switch is used for limiting the flow direction of the pure water in the water storage pipeline to be from the pure water outlet to the water storage port;

the backflow pipeline is communicated with the water storage opening of the preposed water drive composite filter element and the purified water inlet of the reverse osmosis filter element, and a second electromagnetic valve and a backflow check valve are arranged on the backflow pipeline;

and one end of the cold water pipeline is a cold water interface of the water purification system, the other end of the cold water pipeline is communicated with a pure water outlet of the reverse osmosis filter element, and a second switch is arranged on the cold water pipeline and is used for controlling the reverse osmosis filter element to make pure water flow to the cold water interface.

In one embodiment, the water reservoir includes an opening;

alternatively, the water storage port includes: two openings of retaining water inlet and retaining delivery port, it is corresponding, the other end intercommunication of retaining pipeline the retaining water inlet in the mouth of a river holds, return line intercommunication the retaining delivery port in the mouth of a river holds.

In one embodiment, the other end of the cold water pipeline is communicated with the pure water outlet of the reverse osmosis filter element, and the cold water pipeline comprises:

the other end of the cold water pipeline is communicated with the water storage and water outlet, and the water drive tank and the water storage pipeline are communicated with the pure water outlet.

In one embodiment, the water purification system further comprises:

the water heating system comprises a hot water pipeline, one end of the hot water pipeline is a hot water interface of the water purification system, the other end of the hot water pipeline is communicated with a pure water outlet or is connected to a return pipeline between a second electromagnetic valve and a water storage port, a third electromagnetic valve, a first pressure stabilizing valve, a water suction pump and an instant heating device are arranged on the hot water pipeline, the water suction pump is located between the first pressure stabilizing valve and the instant heating device, and the instant heating device is located between the water suction pump and the hot water outlet.

In one embodiment, the first switch comprises one of a check valve or a solenoid valve.

In one embodiment, the second switch comprises one of a high pressure switch or a solenoid valve.

In one embodiment, one end of the return line is communicated with the water storage opening, and the other end of the return line is connected to a pipeline between the first electromagnetic valve and the booster pump, or the other end of the return line is connected to a pipeline between the booster pump and the purified water inlet of the reverse osmosis filter element.

In one embodiment, a second pressure maintaining valve is arranged on the water inlet pipeline.

In one embodiment, the advanced water drive composite cartridge comprises:

the composite filter element comprises a composite filter element shell, wherein a tap water inlet, a purified water outlet and a water storage port are formed in the composite filter element shell;

the prepositive filter element comprises a prepositive filter element shell and a first prepositive filter element main body, wherein the prepositive filter element shell is fixed in the composite filter element shell and comprises an upper end cover, a lower end cover and a diversion shell, the upper end cover is a hollow annular cover body, the lower end cover is a plate-type cover body, the diversion shell is a cylindrical shell body with a hollow inner part, the upper end of the diversion shell is connected with the upper end cover to ensure that the hollow inner part is communicated with the hollow part of the annular cover body, the lower end of the diversion shell is connected with the lower end cover, the prepositive filter element shell forms an external annular cavity positioned at the outer side of the diversion shell and an internal cylindrical cavity positioned at the inner side of the diversion shell, the external annular cavity is communicated with the tap water inlet, and; the first pre-filter cartridge body is located within the outer annular cavity;

the water drive tank is positioned in the inner cylindrical cavity and comprises a water drive tank end cover and a water drive tank water bag fixedly connected with the water drive tank end cover, the water drive tank end cover is communicated with an inlet and an outlet of the water drive tank water bag and the water storage port, and a purified water cavity between the water drive tank and the front filter element shell is communicated with the purified water outlet.

In one embodiment, the front cartridge housing further comprises: the annular plate is hollow inside and is fixed on the inner side of the flow guide shell;

the pre-filter also includes a second pre-filter body located within the interior cylindrical cavity between the annular plate and the lower cover plate;

the water passing hole is located on the flow guide shell between the annular plate and the lower cover plate, and the water drive tank is located in an inner cylindrical cavity between the annular plate and the upper end cover.

In one embodiment, the front water-drive composite filter element is integrated with a rear filter element, wherein:

the rear filter element comprises a rear filter element shell and a rear filter element main body; the rear filter element shell is positioned in the water drive tank and comprises a rear upper end cover and a rear lower end cover, the rear upper end cover is a hollow annular cover body and is fixedly connected with the composite filter element shell, and the rear lower end cover is a plate-type cover body; the rear filter element main body is an annular cylinder and is positioned in the rear filter element shell, and the bag opening of the water-drive tank water bag is communicated with the water storage opening through the rear filter element main body.

In one embodiment, a post-filter element is integrated within the reverse osmosis filter element.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the water purification system provided by the embodiment can replace concentrated water in front of the RO membrane with the pure water stored in the water drive tank when the water purification system does not produce water for a period of time, so that ions of the concentrated water in front of the RO membrane are prevented from penetrating to the pure water end through the RO membrane, the situation that the TDS of the first cup of water is high is avoided, and the water using experience of a user is improved; and this water purification system adopts and drives jar and leading filter core integration with water and form a leading composite filter core together, sets up the problem that drives jar increase volume alone when having solved water purification system pure water bubble membrane and water demand.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic view of a water purification system according to an exemplary embodiment.

Fig. 2 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 3 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 4 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 5 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 6 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 7 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 8 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 9 is a schematic view of a water purification system according to an exemplary embodiment.

Fig. 10 is a schematic view illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 11 is a schematic diagram illustrating a structure of a water purification system according to an exemplary embodiment.

Fig. 12 is a schematic view of a water purification system according to an exemplary embodiment.

Fig. 13 is a schematic diagram of a pre-composite filter cartridge according to an exemplary embodiment.

Fig. 14 is a schematic diagram of a pre-composite filter cartridge according to an exemplary embodiment.

Fig. 15 is a schematic diagram of a pre-composite filter cartridge according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present disclosure provides a water purification system, and fig. 1 is a schematic structural view of a water purification system shown according to an exemplary embodiment. As shown in fig. 1, the water purification system includes: leading water drive composite filter core 1, reverse osmosis filter core 2, water inlet pipe 3, clear water pipeline 4, waste water pipeline 5, retaining pipeline 6, return line 7 and cold water pipeline 8.

As shown in fig. 1, one end of the water inlet pipeline 3 is a tap water port 31, and the other end of the water inlet pipeline 3 is communicated with a tap water inlet 111 of the front water-driving composite filter element 1; the purified water pipeline 4 is communicated with the purified water outlet 112 of the preposed water drive composite filter element 1 and the purified water inlet 21 of the reverse osmosis filter element 2, and a first electromagnetic valve 41 and a booster pump 42 are arranged on the purified water pipeline 4; one end of the wastewater pipeline 5 is a wastewater interface 51 of the water purification system, the other end of the wastewater pipeline 5 is communicated with the wastewater outlet 22 of the reverse osmosis filter element 2, and a wastewater electromagnetic valve 52 is arranged on the wastewater pipeline 5 under normal conditions; one end of the water storage pipeline 6 is communicated with the pure water outlet 23, the other end of the water storage pipeline 6 is communicated with the water storage port 113 of the front water-drive composite filter element 1, the water storage pipeline 6 is provided with a high-voltage switch 61 and a first switch 62, and the first switch 62 is used for limiting the flow direction of the pure water in the water storage pipeline 6 to flow from the pure water outlet 23 to the water storage port 113. The return pipeline 7 is communicated with the water storage port 113 of the preposed water drive composite filter element 1 and the purified water inlet 21 of the reverse osmosis filter element 2, and a second electromagnetic valve 71 and a return check valve 72 are arranged on the return pipeline 7; one end of the cold water pipeline 8 is a cold water interface 81 of the water purification system, the other end of the cold water pipeline 8 can be communicated with the pure water outlet 23 of the reverse osmosis filter element 2 as shown in fig. 1, a second switch 82 is arranged on the cold water pipeline 8, and the second switch 82 is used for controlling the reverse osmosis filter element 2 to make pure water flow to the cold water interface 81.

It should be noted that, in the above-mentioned various pipelines, when two pipelines are both communicated with a joint, the two pipelines share a pipeline, for example, as shown in fig. 1, the cold water pipeline 8 and the water storage pipeline 6 share a pipeline to communicate with the pure water outlet 23, the return pipeline 7 and the water storage pipeline 6 share a pipeline to communicate with the water storage port 113, and so on.

When the water purification system is used, three working modes can be provided: a water making mode, a cold water taking mode and a reflux bubble film mode.

A water making mode: first solenoid valve 41 and booster pump 42 can be opened to water purification system, like this, external running water gets into this water purification system after from water purification system's running water interface 31, can get into this leading water drive composite filter element 1 from leading water inlet 111 of composite filter element 1 earlier, this leading water drive composite filter element 1 filters behind the large granule impurity and some coloured impurity of aquatic, with water from the water purification delivery port 112 output of this leading water drive composite filter element 1, so avoid the impurity damage rearmounted first solenoid valve 41 of aquatic, devices such as booster pump 42 and reverse osmosis filter element 2, thereby effectively improve this water purification system's life. The first electromagnetic valve 41 is opened and closed by the purified water inlet 21, and after the first electromagnetic valve 41 and the booster pump 42 are opened, the purified water filtered by the preposed water-driving composite filter element 1 can enter the reverse osmosis filter element 2 through the purified water inlet 21 of the reverse osmosis filter element 2 by the boosting of the booster pump 42. This reverse osmosis filter element 2 can follow the pure water delivery port 23 outflow of this reverse osmosis filter element 2 to the pure water that produces after the water purification of entering filters, holds mouth of a river 113 through the 6 flow directions of this water storage pipeline, and this water storage mouth 113 intercommunication this leading water drives the water drive jar in the composite filter element 1, and the pure water just can get into the water drive jar internal storage in this leading water drives composite filter element 1 after this water storage pipeline 6 flow directions this water storage mouth 113 like this.

Cold water taking mode: the first electromagnetic valve 41, the booster pump 42 and the second switch 82 can be opened by the water purification system, and after the water purification system starts to produce water according to the working process of the water production mode, the pure water produced by the reverse osmosis filter element 2 flows out of the cold water port 81 from the pure water outlet 23 through the second switch 82 due to the opening of the second switch 82. The cold water interface 81 is communicated with a cold water outlet of the intelligent faucet, so that the prepared pure water can flow out from the cold water outlet of the intelligent faucet for users to use. Here, in order to prevent the pure water in the cold water line 8 from flowing back, a check valve may be provided in the cold water line 8 or a line shared by the cold water line 8 and the reservoir line 6.

And (3) a reflux bubble film mode: the water purification system can close the first electromagnetic valve 41, the second switch 82 and the booster pump 42, open the second electromagnetic valve 71, the second electromagnetic valve 71 is a backflow switch, after the second electromagnetic valve 71 is opened, because the second electromagnetic valve 71 closed by the second switch 82 is opened, the pure water stored in the water drive tank under the action of the water pressure in the water drive tank flows to the pure water inlet 21 of the reverse osmosis filter element 2 through the second electromagnetic valve 71 under the action of the backflow check valve 72, and the high-TDS concentrated water after normal water production at the front concentrated water side of the RO membrane of the reverse osmosis filter element 2 is replaced. So, can replace the dense water before the RO membrane when water purification system does not make water for a long time, prevent that the dense water ion before this RO membrane from passing the RO membrane and permeating the pure water side, avoid appearing the higher condition of first cup of water TDS after the water purification system is static for a period of time, improve user experience.

The water purification system provided by the embodiment can replace concentrated water in front of the RO membrane by pure water in the water drive tank when the water purification system does not produce water for a period of time, so that concentrated water ions in front of the RO membrane are prevented from penetrating to a pure water end through the RO membrane, the situation that the TDS of first cup of water is high is avoided, and the water using experience of a user is improved; and this water purification system adopts and to drive jar and leading filter core integration with water and to be a leading composite filter core, sets up the problem that the jar increases the volume that drives alone when having solved water purification system pure water bubble membrane and water demand.

In one possible embodiment, fig. 2 is a schematic diagram of a water purification system according to an exemplary embodiment. In this disclosure, the water storage port 113 of the front composite filter element may include an opening as shown in fig. 1, or may include two openings, i.e., a water storage water inlet 1131 and a water storage water outlet 1132 as shown in fig. 2, and accordingly, as shown in fig. 2, the other end of the water storage pipeline 6 is communicated with the water storage water inlet 1131 of the water storage port 113, and the return pipeline 7 is communicated with the water storage water outlet 1132 of the water storage port 113, so that, in the water production mode, the pure water produced by the reverse osmosis filter element 2 may flow to the water storage water inlet 1131 from the water storage pipeline 6, and flow to the water drive tank of the front composite filter element 1 from the water storage water inlet 1131 for storage, and in the return bubble film mode, the pure water in the water drive tank may flow to the return pipeline 7 from the water storage water outlet 1132, and flow to the water inlet of the reverse osmosis filter element 2, so as.

In a possible embodiment, the other end of the cold water pipe 8 may be directly connected to the pure water outlet 23 of the reverse osmosis filter element 2 as shown in fig. 1, or the other end of the cold water pipe 8 is connected to the pure water outlet 23 of the reverse osmosis filter element 2 as shown in fig. 2, and the cold water pipe comprises: the other end of cold water pipeline 8 intercommunication retaining delivery port 1132, so, communicate this pure water delivery port 23 through retaining pipeline 6 and water drive jar. In the connection mode of the cold water pipe 8 shown in fig. 2, only pure water in the water drive tank flows out of the reservoir water outlet 1132 and flows to the cold water connection 81 through the cold water pipe 8 in the cold water intake mode.

In one possible embodiment, fig. 3 is a schematic diagram of a water purification system according to an exemplary embodiment. As shown in fig. 3, a hot water pipeline 9 is arranged on the basis of the water purification system shown in fig. 1, a hot water port 95 of the water purification system is arranged at one end of the hot water pipeline 9, the other end of the hot water pipeline 9 is communicated with the pure water outlet 23, a third electromagnetic valve 91, a first pressure maintaining valve 92, a water pump 93 and an instant heating device 94 are arranged on the hot water pipeline 9, the water pump 93 is located between the first pressure maintaining valve 92 and the instant heating device 94, and the instant heating device 94 is located between the water pump 93 and the hot water port 95.

Here, the first pressure maintaining valve 92 is used for stabilizing the pressure maintaining valve rear water outlet pressure on the hot water pipeline 9, so that the water flow entering the instant heating device 94 can be accurately controlled through the water pump 93, and the water outlet temperature of the instant heating device 94 can be accurately controlled. Alternatively, the first pressure maintaining valve 92 may be one of a pressure reducing valve, a constant pressure valve, a zero pressure valve, or a negative pressure valve. Here, the zero-pressure valve or the negative-pressure valve may allow the passing water flow to flow out in a non-pressure state, the pressure reducing valve may reduce the pressure of the passing water flow to a certain desired pressure, and the constant-pressure valve allows the passing water flow to flow out in a constant-pressure state. The zero-pressure valve or the negative pressure valve, the pressure reducing valve and the constant pressure valve can allow the flowing water to flow out at stable pressure, so that the subsequent water pumping pump 93 can pump specific flow according to specific power, the water flow entering the instant heating device 94 can be accurately controlled through the subsequent water pumping pump 93, the water outlet temperature of the instant heating device 94 is related to the working power and the water flow, and the water outlet temperature of the instant heating device 94 can be accurately controlled by controlling the working power of the instant heating device 94 and the water flow of the water pumping pump 93.

Preferably, the first pressure maintaining valve 92 may be a negative pressure valve or a zero pressure valve, the negative pressure generated after the water suction pump 93 is started can open the negative pressure valve or the zero pressure valve, and the water pressure after the negative pressure valve or the zero pressure valve is opened is zero, so that the pure water produced by the reverse osmosis filter element 2 can flow out from the negative pressure valve or the zero pressure valve in a non-pressure state, the water outlet flow of the water suction pump 93 cannot be affected by the pressure of the pure water flowing out from the reverse osmosis filter element 2, and the water outlet flow can be accurately controlled.

When the water purification system is in a hot water taking mode, the first electromagnetic valve 41, the booster pump 42, the third electromagnetic valve 91, the water suction pump 93, the first pressure maintaining valve 92 and the instant heating device 94 can be opened by the water purification system, after water preparation is started by the water purification system according to the working process of the water preparation mode, pure water produced by the reverse osmosis filter element 2 flows to the first pressure maintaining valve 92 through the third electromagnetic valve 91 due to the fact that the third electromagnetic valve 91 is opened, the pressure of the pure water flowing out of the first pressure maintaining valve 92 is stable, then the pure water flows to the instant heating device 94 under the action of the water suction pump 93 to be heated, the heated pure water can flow out of a hot water interface 95 at one end of the hot water pipeline, and then flows out of a hot water outlet of the intelligent faucet for users to use.

Here, fig. 4 is a schematic structural view illustrating a water purification system according to an exemplary embodiment. As shown in fig. 4, in addition to the water purification system shown in fig. 1, the other end of the hot water line 9 may be connected to the return line 7 between the second solenoid valve 71 and the water storage port 113. Thus, in the hot water mode, only pure water in the water drive tank flows out of the water storage port 113, is heated by the hot water pipe 9, and then flows to the hot water connection port.

Here, fig. 5 is a schematic structural diagram of a water purification system according to an exemplary embodiment, as shown in fig. 5, on the basis of fig. 4, the water storage port 113 may further have two interfaces, namely a water storage inlet and a water storage outlet, and at this time, the other end of the hot water pipeline 9 may be connected between the second electromagnetic valve 71 on the return pipeline 7 and the water storage outlet 1132 of the water storage port 113. Of course, in other embodiments, when the water storage port 113 has two interfaces, namely, a water storage inlet and a water storage outlet, the other end of the hot water pipeline 9 may be connected to the pure water outlet 23, or the other end of the cold water pipeline 8 may be connected to the water storage outlet 1132, and so on, and various situations may be freely combined.

Here, a hot water pipe 9 may be further provided on the basis of fig. 2, and fig. 6 is a schematic structural diagram of a water purification system according to an exemplary embodiment, and as shown in fig. 6, the other end of the hot water pipe 9 is connected between the second electromagnetic valve 71 and the reservoir water outlet 1132 of the water reservoir 113 on the return pipe 7 on the basis of fig. 2, so that only pure water in the water drive tank flows out of the reservoir water outlet 1132 and flows to the hot water port 95 after being heated through the hot water pipe 9 in the hot water mode, and only pure water in the water drive tank flows out of the reservoir water port 113 and flows to the cold water port 81 through the cold water pipe 8 in the cold water mode.

In one possible embodiment, the first switch 62 comprises one of a check valve or a solenoid valve.

For example, as shown in fig. 1-6, the first switch 62 is a check valve. Or, as shown in fig. 7, fig. 7 is a schematic structural diagram of a water purification system according to an exemplary embodiment, and on the basis of fig. 3, the first switch 62 is set as a solenoid valve, and the case that the first switch 62 is a solenoid valve is suitable for a region with low water pressure, which can avoid affecting cold water flow. Of course, the first switch 62 in the above examples of fig. 1, 2, 4 to 6 may be replaced by a solenoid valve, which is not shown.

In one possible embodiment, the second switch 82 comprises one of a high pressure switch or a solenoid valve.

For example, as shown in fig. 1-7, the second switch 82 is a solenoid valve. Alternatively, as shown in fig. 8, fig. 8 is a schematic structural diagram of a water purification system according to an exemplary embodiment, and in addition to fig. 3, the second switch 82 is set as a high-voltage switch, and the case where the second switch 82 is a high-voltage switch is suitable for adapting the water purification system to a pipeline machine. Fig. 9 is a schematic structural diagram of a water purification system according to an exemplary embodiment, in addition to fig. 1, the second switch 82 is set as a high-voltage switch, and the water purification system is adapted to a pipeline machine in the case that the second switch 82 is a high-voltage switch. Of course, the first switch 62 in the above examples of fig. 2, 4 to 7 may be replaced by a high voltage switch, which is not shown here.

Here, when the second switch 82 is an electromagnetic valve, the water purification system can use the second switch 82 as an on-off switch of the cold water pipeline 8, and when the water purification system receives a cold water fetching instruction input by a user, the second switch 82 is turned on, so that pure water produced by the reverse osmosis filter element 2 is vertically led to the cold water port 81 through the cold water pipeline 8. When the second switch 82 is a high-voltage switch, the water purification system can use the second switch 82 as a water production switch of the water purification system, when a cold water tap connected with the water purification system is opened, the high-voltage switch detects that the water pressure is smaller than a preset low threshold value, the water purification system opens the first electromagnetic valve 41 and the booster pump 42 to produce water, and the pure water produced by the reverse osmosis filter element 2 is delivered to the cold water port 81 through the cold water pipeline 8.

In a possible embodiment, the other end of the return line 7 may be connected to a line between the first solenoid valve 41 and the booster pump 42, as shown in fig. 3 to 8, or the other end of the return line 7 may be connected to a line between the booster pump 42 and the clean water inlet 21 of the reverse osmosis cartridge 2, as shown in fig. 1, 2 or 9.

Fig. 10 is a schematic structural view of a water purification system according to an exemplary embodiment, fig. 11 is a schematic structural view of a water purification system according to an exemplary embodiment, fig. 12 is a schematic structural view of a water purification system according to an exemplary embodiment, fig. 10 is different from fig. 3 in that the position of the other end of the return line 7 is different, and the rest are the same, fig. 11 is different from fig. 4 in that the position of the other end of the return line 7 is different, and the rest are the same, and fig. 12 is different from fig. 6 in that the position of the other end of the return line 7 is different, and the rest are the same. Of course, the other end of the return line 7 in fig. 5, 7 and 8 can also be connected to a line between the booster pump 42 and the clean water inlet 21 of the reverse osmosis cartridge 2, which is not shown here.

Here, the other end of the return line 7 is connected to a line between the booster pump 42 and the purified water inlet 21 of the reverse osmosis filter element 2, and the water path through the booster pump 42 is not required, and the water consumption of the bubble membrane can be reduced by connecting the other end of the return line 7 to a line between the booster pump 42 and the purified water inlet 21 of the reverse osmosis filter element 2, as compared with a line connecting the other end of the return line 7 to a line between the first electromagnetic valve 41 and the booster pump 42.

In a possible embodiment, as shown in fig. 2 to 12, the water inlet line 3 is provided with a second pressure maintaining valve 32.

Here, this second surge damping valve 32 is used for stabilizing the water pressure of running water, and optionally, this second surge damping valve 32 can be relief pressure valve, constant pressure valve etc. like this, and the pressure of the running water that flows to this leading composite filter element 1 from inlet channel 3 is invariable, avoids appearing running water pressure too high, influences the operation of water-driven tank to and avoid appearing the in-process that water-driven tank made full water, the too big problem that influences system water efficiency of backpressure.

In a possible embodiment, fig. 13 is a schematic structural diagram of a front water-driving composite filter element 1 according to an exemplary embodiment, and as shown in fig. 13, the front water-driving composite filter element 1 includes:

the composite filter element comprises a composite filter element shell 11, wherein a tap water inlet 111, a purified water outlet 112 and a water storage port 113 are formed in the composite filter element shell 11. The tap water inlet 111 is communicated with an external tap water inlet through a tap water connector 31 of the water purification system, and is used for enabling external tap water to enter the front composite filter element 1, the purified water outlet 112 is a water outlet of purified water purified by the front composite filter element, and the water storage port 113 is communicated with a water inlet and a water outlet of the water drive tank, and is used for enabling the purified water stored in the water drive tank to enter and exit.

As shown in fig. 13, the front filter element includes a front filter element housing 12 and a first front filter element main body 13, wherein, as shown in fig. 13, the front filter element housing 12 is fixed in the composite filter element housing 11, for example, the front filter element housing 12 includes an upper end cover 121, a lower end cover 122 and a guide shell 123, the upper end cover 121 is a hollow annular cover body and can be fixed in the composite filter element housing 11, the lower end cover 122 is a plate-type cover body, the guide shell 123 is a cylindrical housing with a hollow interior, the upper end of the guide shell 123 is connected to the upper end cover 121 so that the hollow interior is communicated with the hollow interior of the annular cover body, the lower end of the guide shell 123 is connected to the lower end cover 122, the front filter element housing 12 forms an outer annular cavity outside the guide shell 123 and an inner cylindrical cavity inside the guide shell 123, the outer annular cavity is communicated with the tap water inlet 111, the diversion shell 123 is provided with a water through hole 1231. As shown in fig. 1, the first pre-cartridge body 13 is located within the outer annular cavity. Here, the front filter element includes a front filter element housing 12 and a first front filter element main body 13, an opening between the outer side walls of the upper end cover 121 and the lower end cover 122 is a water inlet of the front filter element, a water through hole 1231 on the guide shell 123 is a water outlet of the front filter element, the water inlet of the front filter element is communicated with the tap water inlet 111 through a cavity between the front filter element housing 11 and the front filter element housing, so that tap water entering from the tap water inlet 111 can enter the front filter element from the water inlet of the front filter element, and the tap water flows out from the water through hole 1231 after being filtered by the first front filter element main body 13.

As shown in fig. 13, the water drive tank 14 is located in the inner cylindrical cavity and includes a water drive tank end 141 and a water drive tank water bag 142 fixedly connected to the water drive tank end 141, the water drive tank end 141 is communicated with an inlet and an outlet of the water drive tank water bag 142 and the water storage port 113, the clean water cavity 15 between the water drive tank 14 and the front cartridge housing 12 is communicated with the clean water outlet 112, where the water drive tank end 141 is fixed to the composite cartridge housing 11, and for example, the water drive tank end 141 may be directly fixed to the composite cartridge housing 11; alternatively, the water drive can end 141 can be secured to the composite cartridge housing 11 by the upper end 121, such as the upper end 121 being secured to the composite cartridge housing 11, the water drive can end 141 being fixedly attached to an inner annular sidewall or the like of the upper end 121, or the water drive can end 141 can be secured to the baffle shell 123.

Here, as shown in fig. 1 to 12, after the front composite filter element is disposed at the tap water connection of the whole water purification system, external tap water enters the water purification system from the tap water connection of the whole water purification system, and then enters the front composite filter element through the tap water inlet 111 on the composite filter element, and purified water obtained after being filtered by the first front filter element main body 13 in the outer annular cavity can enter the inner cylindrical cavity from the water through hole 1231 of the diversion shell 123, and then flows to the purified water outlet 112 through the purified water cavity 15 between the water driving tank 14 and the front filter element housing 12, so that purified water produced by the front composite filter element can flow out from the purified water outlet 112, and then can flow into the reverse osmosis filter element 2 through the purified water pipeline 4 as shown in fig. 1 to 12 for further purification.

Here, the water-driving tank water bag 142 is a pure water storage space, pure water purified by the reverse osmosis filter element 2 in the water purification system can enter the water-driving tank water bag 142 from the water storage port 113 of the composite filter element housing 11 for storage, and the pure water in the water-driving tank water bag 142 can play a role in flushing the concentrate side of the RO membrane. The cavity in front of the water drive tank water bag 142 and the diversion shell 123 is a water purification cavity 15, the water purification cavity 15 is used for containing purified water purified by the front filter element, and the purified water in the water purification cavity 15 can play a role in adjusting the amount of the purified water stored in the water drive tank water bag 142. When the pressure of the pure water in the water-drive tank water bag 142 is greater than the pressure of the pure water in the pure water cavity 15, the water-drive tank 14 needs to be filled with water and stored, and at this time, the water-drive tank water bag 142 presses the pure water in the pure water cavity 15, so that the pure water in the pure water cavity 15 is discharged, and the volume of the pure water in the water-drive tank water bag 142 is increased; when the pressure of the pure water in the water-driving tank water bag 142 is lower than the pressure of the pure water in the pure water cavity 15, the water-driving tank 14 will discharge water, and the volume of the pure water in the pure water cavity 15 will increase to squeeze the water-driving tank water bag 142, so as to discharge the pure water in the water-driving tank water bag 142.

It should be noted that the water-driving tank water bag 142 includes an elastic water bag, so that water can be conveniently introduced and discharged under the pressure of tap water or pure water, the elastic material of the elastic water bag may be an elastic material such as rubber, silica gel, etc., or other elastic polymer materials, and further, the stored water in the water-driving tank water bag 142 is not only used for entering the thick water side of the RO membrane for soaking, but also used for drinking, so that it can be made of a food-grade elastic material.

This embodiment can be integrated with leading filter core with water drive jar structure and form above-mentioned leading composite filter core together, reduces water purification system's whole volume, sets up the problem that water drive jar increased the volume alone when solving water purification system pure water bubble membrane and water demand, reduces the occupation space of water purification system in the basin cabinet, makes things convenient for the installation of other household electrical appliances in the basin cabinet.

In one possible embodiment, fig. 14 is a schematic diagram of a pre-composite filter element according to an exemplary embodiment. As shown in fig. 14, the front cartridge housing 12 further includes: an annular plate 124 with a hollow inside, wherein the annular plate 124 is fixed inside the guide shell 123; the front composite filter element further comprises a second front filter element body 16, the second front filter element body 16 being located within the internal cylindrical cavity between the annular plate 124 and the lower end cap 122; the water through hole 1231 is located on the flow guide shell 123 between the annular plate 124 and the lower end cover 122, and the water drive tank 14 is located in the inner cylindrical cavity between the annular plate 124 and the upper end cover 121.

Here, the purified water from the first pre-filter body 13 enters the second pre-filter body 16 through the water hole 1231 for further purification, and then flows from the hollow inside of the annular plate 124 to the purified water cavity 15, and further flows out from the purified water outlet 112.

As described above, in the embodiment of fig. 13, the water outlet of the front filter element is the water through hole 1231 of the diversion shell 123 and is located at the side of the water-driving tank water bag 142, and in the embodiment of fig. 14, the water outlet of the front filter element is the hollow part inside the annular plate 124 and is located below the water-driving tank water bag 142, in the embodiment including the first front filter element main body 13 and the second front filter element main body 16 shown in fig. 14, tap water flows out after being purified by more front filter element main bodies, so that tap water can be better purified.

Here, the first and second pre-filter

main bodies

13 and 16 include at least one filter material selected from PP cotton, activated carbon, folded paper PP, and non-woven fabric. The PP cotton can also be called filling cotton and is common artificial chemical fiber, the material is polypropylene fiber for artificial chemical fiber, and large-particle substances such as colloid impurities, micro-mud, rust, worm eggs, organic pollution mineral impurities and the like in tap water are filtered. This leading filter core is mainly for subsequent reverse osmosis filter core does the preliminary treatment, filters the large granule material, prevents that this reverse osmosis filter core from being damaged.

In a possible embodiment, shown in fig. 13 and 14, the water storage port 113, the tap water inlet 111 and the clean water outlet 112 are located at the top of the composite filter cartridge housing 11, so as to facilitate the installation or removal of the pre-composite filter cartridge in the water purification system.

Of course, in other embodiments, the tap water inlet 111 may also be located at one end of the composite filter element housing 11, and the purified water outlet 112 and the water storage port 113 are located at the opposite ends of the tap water inlet 111. Or, the purified water outlet 112 is located at the bottom of the composite filter element shell 11, and the tap water inlet 111 and the water storage port 113 are located at the top of the composite filter element shell 11; in this case, an opening may be formed in the lower cap 122, and the clean water outlet 112 may be directly connected to the opening. Or, the water storage opening 113 may be located at the top of the composite filter element housing 11, and the tap water inlet 111 and the purified water outlet 112 may be located at the bottom of the composite filter element housing 11, and at this time, an opening may be provided on the lower end cover 122, and the opening is directly communicated with the purified water outlet 112.

Various mouths of a river can be arranged at different positions in the preposed composite filter element, different water channels in the water purification system are connected with different mouths of a river, and various preposed composite filter elements at different mouth of a river positions can be used according to various designs inside the water purification system, so that the water channel in the water purification system is shorter, the volume of the water purification system is smaller, and of course, the water storage port 113 can be one interface or two interfaces, and graphical representations are not given one by one.

In one possible embodiment, fig. 15 is a schematic diagram of a pre-composite filter element according to an exemplary embodiment. As shown in fig. 15, the front water-drive composite filter element 1 further includes a rear filter element, wherein: the rear filter element comprises a rear filter element shell 17 and a rear filter element main body 18; the rear filter element shell 17 is located in the water drive tank 14 and comprises a rear upper end cover 171 and a rear lower end cover 172, the rear upper end cover 171 is a hollow annular cover body and is fixedly connected with the composite filter element shell 11, and the rear lower end cover 172 is a plate-type cover body; the rear filter element main body 18 is an annular cylinder and is located in the rear filter element shell 17, and a bag opening of the water drive tank water bag 142 is communicated with the water storage opening 113 through the rear filter element main body 18. For example, the water storage port 113 in the front-rear filter element shown in fig. 15 includes two interfaces, in this case, the water storage port 113 includes a water storage inlet 1131 for inputting pure water into the water drive tank 14 and a water storage outlet 1132 for delivering pure water from the water drive tank 14 to the outside, the bag mouth of the water drive tank water bag 142 is communicated with the water storage inlet 1131 in the water storage port 113 through the cavity between the water drive tank 14 and the rear filter element, and the middle cavity of the rear filter element main body 18 is communicated with the water storage outlet 1132 in the water storage port 113 through the hollow area of the rear upper end cover 171.

Of course, in some other embodiments, the water storage port 113 may include only one interface, for example, one interface of the water storage ports 113 in fig. 15 may be plugged, and only one interface is left as the water storage port, and accordingly, the mouth of the water-driving tank water bag 142 is communicated with the water storage port 113.

Here, the post-filter body may include a filter medium for post-treatment of pure water, such as activated carbon, an ultrafiltration membrane, or a nonwoven fabric, and may improve the taste of pure water.

Here, as shown in fig. 15, pure water produced by the reverse osmosis filter element 2 can enter the front and rear composite filter elements 1 through the water storage inlet 1131, and as shown in fig. 15, can enter the water-driving tank water bag 142 from the bag mouth of the water-driving tank water bag 142 through the cavity between the water-driving tank 14 and the rear filter element for water storage; the water-driving tank water bag 142 is discharged from the bag opening to the cavity between the water-driving tank 14 and the rear filter element when discharging water, enters the rear filter element main body 16 from the cavity, is filtered by the rear filter element main body 16, passes through the middle cavity of the rear filter element main body 16, and is discharged from the water storage outlet 1132 in the water storage opening 113, so as to be used for backflow pure water bubble film or user use.

In this possible embodiment, the post-filter element in the water purification system can be integrated in the reverse osmosis filter element 2, for example, the post-filter element placed in the water drive tank shown in fig. 15 can be similar to the post-filter element, and the post-filter element can be placed in the hollow area of the RO filter material with the spiral ring structure in the reverse osmosis filter element, so that the pure water purified by the RO filter material can flow out from the pure water outlet 23 of the reverse osmosis filter element 2 after being filtered by the post-filter element, and flows into the water drive tank for storage or flows into the cold water port or the hot water port for the user to use, so that the taste of the pure water produced by the reverse osmosis filter element can be improved, and the water use experience of the user can be improved.

Of course, in other embodiments, the post-filter element may be separately disposed, such as after being connected to the pure water outlet 23 of the reverse osmosis filter element 2, and it is clear to those skilled in the art that the specific modified structure is not illustrated.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited only by the attached claims.

Claims

1. The utility model provides a water purification system, its characterized in that, including integrated leading water drive composite filter core and the reverse osmosis filter core that has leading filter core and water drive jar, water purification system still includes:

2. The water purification system of claim 1, wherein the water storage port comprises an opening;

3. The water purification system of claim 2, wherein the other end of the cold water pipeline is communicated with the pure water outlet of the reverse osmosis filter element and comprises:

4. The water purification system of any one of claims 1 to 3, further comprising:

5. The water purification system of claim 4,

the first switch comprises one of a check valve or a solenoid valve.

6. The water purification system of claim 4,

the second switch comprises one of a high-pressure switch or a solenoid valve.

7. The water purification system of claim 4,

the one end intercommunication of return line hold the mouth of a river, the other end of return line is connected on the pipeline between first solenoid valve and the booster pump, perhaps, the other end of return line is connected the booster pump with on the pipeline between the water purification water inlet of reverse osmosis filter core.

8. The water purification system of claim 1, wherein a second pressure maintaining valve is disposed on the water inlet line.

9. The water purification system of claim 1, wherein the pre-positioned water-drive composite filter element comprises:

10. The water purification system of claim 9, wherein the front cartridge housing further comprises: the annular plate is hollow inside and is fixed on the inner side of the flow guide shell;

11. The water purification system of claim 9, wherein a post-filter element is further integrated into the pre-water-drive composite filter element, wherein:

12. The water purification system of claim 1, wherein a post-filter element is integrated into the reverse osmosis filter element.