CN205635100U - Water purifying system - Google Patents

Abstract

The utility model discloses a water purification system, which comprises a composite filter element assembly, a booster pump, a waste water valve, a water storage device and a rear water purification faucet. The composite filter element assembly has water source inlet, pure water outlet and concentrated water outlet. filter element, and the rear clean water faucet is connected in series downstream of the water storage device. According to the water purification system of the present invention, the multi-stage filter element in the water purification system can be modularized by setting the rear water purification faucet and matching the composite filter element assembly, thereby simplifying the water purification while ensuring the water purification capacity. System structure, reduce the volume of the water purification system, and make the installation of the water purification system more convenient.

Description

water purification system

technical field

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

Background technique

In the related art, the multi-stage filter devices are connected in sequence, resulting in the overall size of the water purifier being too large, and the space utilization rate is low, and the water after the water purification treatment is stored in the water bag or pipeline, etc., when pure water is used, it is easy to cause Secondary pollution.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, the utility model proposes a water purification system, the water purification system has a simple structure, few joints, small volume and convenient installation.

The water purification system according to the embodiment of the utility model includes: a composite filter element assembly, the composite filter element assembly has a water source inlet, a pure water outlet and a concentrated water outlet; a booster pump, the booster pump is connected to the water source inlet; A waste water valve, the waste water valve is connected to the concentrated water outlet; a water storage device, the water storage device is connected to the pure water outlet; a rear water purification faucet, a rear water purification faucet is equipped with a rear filter element, and the rear water purification tap is connected in series downstream of the water storage device.

According to the water purification system of the embodiment of the present invention, the multi-stage filter element in the water purification system can be modularized by setting the rear water purification faucet and matching the composite filter element assembly, so that the water purification ability can be guaranteed while simplifying the The structure of the water purification system reduces the volume of the water purification system and makes the installation of the water purification system more convenient.

According to some embodiments of the present utility model, the water storage device includes: a flexible water bag for storing pure water, the flexible water bag is connected to the pure water outlet; a diaphragm pump, the diaphragm pump is connected in series Between the flexible water bag and the rear-mounted water purification faucet, the diaphragm pump is used to extract the pure water stored in the flexible water bag and transport it toward the rear-mounted water purification faucet.

According to some embodiments of the present utility model, a water inlet solenoid valve is connected in series upstream of the booster pump, and a high-voltage switch is connected in series between the rear water purification faucet and the water storage device, and the high-voltage switches are respectively Communicating with the booster pump and the water inlet solenoid valve, the high pressure switch controls the opening and closing of the booster pump and the water inlet solenoid valve according to water pressure.

Further, the water storage device also includes a water level detection switch, and the water level detection switch communicates with the high pressure switch, the water inlet solenoid valve and the booster pump respectively, and when the rear clean water faucet is closed, The water level detection switch controls the opening and closing of the water inlet solenoid valve and the booster pump according to the water level in the water storage device.

Optionally, the water level detection switch is a liquid level switch or a reed switch.

According to some embodiments of the present utility model, the post filter element includes an activated carbon filter element.

Further, the post filter element also includes at least one of an ultrafiltration membrane filter element, a microfiltration membrane filter element and a PP cotton filter element.

According to some embodiments of the present utility model, the waste water valve is a combination valve that is a passage in a fully open state and a waste water proportional valve in a closed state.

According to some embodiments of the present utility model, the water purification system further includes a pre-filter, and the pre-filter is connected in series upstream of the booster pump.

According to some embodiments of the present utility model, the composite filter element assembly includes: a housing on which the water source inlet, the pure water outlet, and the concentrated water outlet are formed; In the housing, the composite filter element includes a plurality of filter element layers, and the plurality of filter element layers include a pretreatment filter element and a fine filter layer nested from outside to inside, and the pretreatment filter element is spaced apart from the water source inlet and the concentrated water outlet, the fine filter layer separates the pure water outlet and the concentrated water outlet.

Further, the upper end of the housing is open and the lower end is closed, and the upper end of the housing is provided with a gland for positioning the composite filter element, and the gland is detachably connected with the housing for positioning the Composite filter.

Description of drawings

Fig. 1 is the schematic diagram of the water purification system according to the utility model embodiment;

Fig. 2 is a schematic diagram of changing the core of the composite filter element assembly of the water purification system according to the embodiment of the present invention, wherein the pressure ring is removed from the composite filter element assembly;

Fig. 3 is a schematic diagram of changing the core of the composite filter element assembly of the water purification system according to the embodiment of the present invention, wherein the gland is removed from the composite filter element assembly;

Fig. 4 is a schematic diagram of changing the core of the composite filter element assembly of the water purification system according to the embodiment of the present invention, wherein the composite filter element is taken out from the housing;

5 is a schematic diagram of a composite filter element of a water purification system according to an embodiment of the present invention;

Fig. 6 is a cross-sectional view of a composite filter element of a water purification system according to an embodiment of the present invention.

Reference signs:

water purification system 100,

Composite filter element assembly 1, housing 11, water source inlet 111, pure water outlet 112, concentrated water outlet 113, composite filter element 12, folded PP layer 121, pretreatment filter element 122, PP non-woven fabric winding layer 1221, activated carbon fiber winding Layer 1222, fine filter layer 123, reverse osmosis membrane 1231, central water collection pipe 1232, sealing cup 124, sealing ring 125, gland 13, pressure ring 14,

Pre filter 2, water inlet solenoid valve 3, booster pump 4, waste water valve 5, high pressure switch 6,

Water storage device 7, flexible water bag 71, diaphragm pump 72,

Rear water purification faucet 8, water purification faucet switch 81, rear filter element 82.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "top", "bottom", "inner" and "outer" are based on The orientation or positional relationship shown in the accompanying drawings is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components , unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The water purification system 100 according to the embodiment of the present utility model will be described in detail below with reference to FIGS. 1-6 .

As shown in FIGS. 1-6 , the water purification system 100 according to the embodiment of the present invention includes a composite filter element assembly 1 , a booster pump 4 , a waste water valve 5 , a water storage device 7 and a rear faucet 8 for cleaning water.

Specifically, the composite filter element assembly 1 has a water source inlet 111 , a pure water outlet 112 and a concentrated water outlet 113 , and the water source enters the composite filter element assembly 1 from the water source inlet 111 to be filtered. The filtered water is divided into two parts: one part is pure water and can flow out from the pure water outlet 112 , and the other part is waste water with higher impurity concentration and can flow out from the concentrated water outlet 113 .

The booster pump 4 is connected to the water source inlet 111, and the booster pump 4 is used to increase the pressure of the water entering from the water source inlet 111, so that the water enters the composite filter element assembly 1 under sufficient pressure for filtering. The waste water valve 5 is connected to the concentrated water outlet 113. The waste water valve 5 is used to adjust the proportion of waste water to balance the working pressure of the water purification system 100. The waste water flowing out from the concentrated water outlet 113 is discharged through the waste water valve 5. The water storage device 7 is connected with the pure water outlet 112, and the pure water flowing out from the pure water outlet 112 can flow into the water storage device 7 for storage for drinking or use.

A rear filter element 82 is provided in the rear water purification faucet 8, and the rear water purification faucet 8 is connected in series with the downstream of the water storage device 7, and the rear filter element 82 in the rear water purification faucet 8 can further improve the water quality. For example, the pure water in the general water storage device 7 will have peculiar smell if it is stored for a long time, and the pure water can be removed from the rear faucet 8 to improve the taste before drinking or using. It should be noted that the direction “downstream” is defined according to the direction of water flow in the water purification system 100 .

It can be understood that the water purification system 100 places a post-filter element at its end (ie, the final outlet of pure water) as the last process of filtration in the water purification system 100. The main function is to improve the taste and remove odors. The water purification system 100 of the present utility model is to make the rear filter element 82 into an independent module, so that the rear filter element 82 can be directly installed on the faucet of the water purification system 100 to form the above-mentioned rear water purification faucet 8, thereby The joints in the water purification system 100 can be reduced and the volume of the water purification system 100 can be reduced, and at the same time, it is convenient for users to install and replace.

For example, in the example of FIG. 1 , the rear clean water faucet 8 includes a clean water faucet switch 81 and a rear filter element 82, and the rear filter element 82 is arranged at the water outlet end of the rear clean water faucet 8, and the clean water faucet switch 81 uses It is used to control the opening and closing of the clean water faucet. When the rear water purification faucet 8 is turned on, the pure water in the water purification system 100 can pass through the rear filter element 82 in the rear water purification faucet 8 to remove peculiar smell, improve the taste, and finally obtain drinking water with good water quality.

When installing the water purification system 100, only need to plug in three joints (i.e. water source inlet 111, pure water outlet 112 and concentrated water outlet 113), then screw on the rear clean water faucet 8 to complete the installation. Thereby, the installation of the water purification system 100 can be made convenient and fast, without the need for professional personnel to perform the installation.

According to the water purification system 100 of the embodiment of the present utility model, the multi-stage filter element in the water purification system 100 can be modularized by setting the rear water purification faucet 8 and cooperating with the composite filter element assembly 1, thereby ensuring water purification At the same time, the structure of the water purification system 100 is simplified, the volume of the water purification system 100 is reduced, and the installation of the water purification system 100 can be made more convenient.

According to some embodiments of the present utility model, as shown in FIG. 1 , the water storage device 7 includes a flexible water bag 71 and a diaphragm pump 72 . The flexible water bag 71 is connected with the pure water outlet 112, and the flexible water bag 71 plays the role of water storage, and the pure water flowing out from the pure water outlet 112 can flow into the flexible water bag 71 for storage and backup. The diaphragm pump 72 is connected in series between the flexible water bag 71 and the rear faucet 8. The diaphragm pump 72 is used to extract the pure water stored in the flexible water bag 71 and transport it towards the rear faucet 8. The pure water passes through the rear faucet. Put the clean water faucet 8 to filter and flow out from the water outlet end of the rear clean water faucet 8 to drink or use.

Compared with the pressure tank in the traditional water purification system 100, the flexible water bag 71 has good flexibility, and the space occupied by the flexible water bag 71 varies according to the amount of pure water stored in the flexible water bag 71. Therefore, the space occupied by the flexible water bag 71 can be fully utilized, and the space utilization rate can be improved.

According to some embodiments of the present utility model, as shown in FIG. 1 , a water inlet solenoid valve 3 is connected in series upstream of the booster pump 4 , and a high-voltage switch 6 is connected in series between the rear faucet 8 and the water storage device 7 . The high pressure switch 6 communicates with the booster pump 4 and the water inlet solenoid valve 3 respectively, and the high pressure switch 6 controls the opening and closing of the booster pump 4 and the water inlet solenoid valve 3 according to the water pressure. When the rear water purification faucet 8 is opened, the high-pressure switch 6 is pressure-relieved and closed, the water inlet solenoid valve 3 is opened and the booster pump 4 is opened, and the water purification system 100 starts to purify water; when the rear water purification faucet 8 is closed, the high pressure The switch 6 is disconnected under pressure, the water inlet solenoid valve 3 and the booster pump 4 are both closed, and the water purification system 100 stops the water purification work. In short, the high pressure switch 6 can indirectly detect whether the rear clean water faucet 8 is on or off according to the water pressure. Therefore, it is convenient to control the water purification system 100 and the safety of the water purification system 100 can be improved. It should be noted that the direction “upstream” is defined according to the direction of water flow in the water purification system 100 .

Further, the water storage device 7 also includes a water level detection switch (not shown in the figure), which communicates with the high pressure switch 6, the water inlet solenoid valve 3 and the booster pump 4 respectively. When the rear clean water faucet 8 is closed, the water level The detection switch controls the opening and closing of the water inlet solenoid valve 3 and the booster pump 4 according to the water level in the water storage device 7 . When the rear water purification faucet 8 is opened, the high pressure switch 6 is closed for pressure relief, the water inlet solenoid valve 3 and the booster pump 4 are both turned on, and the water purification system 100 starts to purify water; when the rear water purification faucet 8 is closed, the high pressure The switch 6 is disconnected under pressure and sends a signal to the water level detection switch, and the water level detection switch controls whether the water inlet solenoid valve 3 and the booster pump 4 are closed or opened according to the water level in the water storage device 7 . When the rear water purification faucet 8 is closed, when the water level in the water storage device 7 reaches a predetermined water level, the water inlet solenoid valve 3 and the booster pump 4 are all closed, and the water purification system 100 stops the water purification work; when the water storage device 7 When the water level inside is lower than the predetermined water level, the water inlet solenoid valve 3 and the booster pump 4 are all in the open state, and the water purification system 100 continues the water purification work, so that enough pure water is stored in the water storage device 7 for backup.

For example, in a specific embodiment of the present invention, as shown in FIG. 1 , the water storage device 7 includes a flexible water bag 71 , a diaphragm pump 72 and a water level detection switch. At this time, the high pressure switch 6 also communicates with the diaphragm pump 72 . When the rear water purification faucet 8 is opened, the high pressure switch 6 is pressure-relieved and closed, the water inlet solenoid valve 3 is opened, the booster pump 4 and the diaphragm pump 72 are both turned on, the water purification system 100 starts to purify water, and the diaphragm pump 72 turns the flexible water The pure water in the bag 71 is drawn out and transported to the rear water purification faucet 8, and the pure water is filtered by the rear filter element 82 and finally flows out from the water outlet end of the rear water purification faucet 8 to be drunk or used; When 8 is closed, the high-pressure switch 6 is disconnected under pressure, and the diaphragm pump 72 is also closed at the same time. At this time, the high-pressure switch 6 sends a signal to the water level detection switch, and the water level detection switch controls the water inlet solenoid valve 3 and the booster according to the water level in the flexible water bag 71. Whether the pressure pump 4 is off or on. When the rear water purification faucet 8 is closed, when the water level in the flexible water bag 71 reaches a predetermined water level, the water inlet solenoid valve 3 and the booster pump 4 are all closed, and the water purification system 100 stops the water purification work; when the flexible water bag 71 When the water level inside is lower than the predetermined water level, the water inlet solenoid valve 3 and the booster pump 4 are all in the open state, and the water purification system 100 continues the water purification work, so that enough pure water is stored in the flexible water bag 71 for standby.

Optionally, the water level detection switch may be a liquid level switch or a reed switch, but is not limited thereto.

According to some embodiments of the present invention, the rear filter element 82 includes an activated carbon filter element, so that the pure water flowing out of the water storage device 7 can be further filtered by the rear filter element 82 to remove peculiar smell and improve taste. Further, the post filter element 82 may also include at least one of an ultrafiltration membrane filter element, a microfiltration membrane filter element and a PP cotton filter element. In this way, while removing peculiar smell and improving the taste, it can also prevent the growth of bacteria. It should be noted that the rear filter element 82 can be selected according to specific needs, for example, an activated carbon filter element and an ultrafiltration membrane filter element can be used as the rear filter element 82, or an activated carbon filter element and a microfiltration membrane filter element can be used as the rear filter element 82. But not limited to the above-mentioned matching methods.

In some embodiments of the present utility model, the waste water valve 5 is a combined valve that is a passage in the fully open state and a waste water proportional valve in the closed state. In other words, the waste water valve 5 may include a waste water proportional valve and a normally closed solenoid valve connected in parallel. The normally closed solenoid valve is opened when the waste water valve 5 is fully open, and the normally closed solenoid valve is closed when the waste water valve 5 is closed. Specifically, under normal conditions, the waste water valve 5 is in a closed state, that is, the normally closed solenoid valve is closed, and only the small hole of the waste water proportional valve is left to pass water to balance the working pressure of the water purification system 100 . When the composite filter element assembly 1 needs to be flushed, the waste water valve 5 is fully open, that is, the normally closed solenoid valve is open, and the water inlet solenoid valve 3 and the booster pump 4 are also in the open state, so that it can be flushed by a large amount of water. Cleaning of composite filter element assembly 1.

In a further embodiment of the present utility model, as shown in FIG. 1 , the water purification system 100 further includes a pre-filter 2 connected in series upstream of the booster pump 4 . The pre-filter 2 can pre-filter the water entering the water purification system 100, which can effectively prevent or reduce impurities such as sediment, particles, rust, etc. The service life of the pump 4. In addition, since the water flow in the water purification system 100 can be pre-filtered through the pre-filter 2 first, the content of impurities such as sediment, particles, rust, etc. in the water entering the composite filter element assembly 1 can be relatively reduced, thereby The filtering effect of the composite filter element assembly 1 can be guaranteed to a certain extent, and the service life of the composite filter element assembly 1 can be prolonged.

Of course, the pre-filter 2 can also be other elements with filtering function. The utility model does not limit the specific form of the pre-filter 2, and it can be adaptively selected according to needs in practical applications.

According to some embodiments of the present utility model, as shown in FIGS. 2-6 , the composite filter element assembly 1 includes a housing 11 and a composite filter element 12. The above-mentioned water source inlet 111, pure water outlet 112 and concentrated water are formed on the housing 11. Exit 113. The composite filter element 12 is arranged in the housing 11, and the composite filter element 12 includes a plurality of filter element layers, and the plurality of filter element layers include a pretreatment filter element 122 and a fine filter layer 123 nested from outside to inside, and the pretreatment filter element 122 is separated from the water source inlet. 111 and the concentrated water outlet 113, the fine filter layer 123 separates the pure water outlet 112 and the concentrated water outlet 113. The water entering from the water source inlet 111 is initially filtered through the pretreatment filter element 122 , and then further filtered through the fine filter layer 123 . The filtered water is divided into two parts: one part is pure water and can flow out from the pure water outlet 112 , and the other part is waste water with higher impurity concentration and can flow out from the concentrated water outlet 113 . Thus, while ensuring the water purification capability of the water purification system 100 , the miniaturization of the composite filter element assembly 1 can be realized, thereby reducing the volume of the water purification system 100 .

In a specific embodiment of the present invention, as shown in FIG. 6 , the pretreatment filter element 122 may include a PP non-woven fabric wrapping layer 1221 and an activated carbon fiber wrapping layer 1222 sequentially stacked along the water flow direction. Wherein, the PP non-woven fabric winding layer 1221 can be wound around the outer side of the activated carbon fiber winding layer 1222 . The fine filter layer 123 may be a reverse osmosis membrane. At this time, the fine filter layer 123 includes a reverse osmosis membrane 1231 and a central water collection pipe 1232 . The reverse osmosis membrane 1231 is wound on the central water collection pipe 1232 . At this time, the water entering from the water source inlet 111 flows through the PP non-woven fabric winding layer 1221 and the activated carbon fiber winding layer 1222 in the pretreatment filter element 122 successively, and the water filtered by the pretreatment filter element 122 is then passed through the fine filter layer 123. Filter further.

When the water entering the reverse osmosis membrane 1231 flows from top to bottom, part of the water passes through the reverse osmosis membrane 1231 and enters the central water collection pipe 1232 to become pure water, which can flow out through the pure water outlet 112 . The other part of the water that has not passed through the reverse osmosis membrane 1231 has relatively high impurity concentration, and the waste water with relatively high impurity concentration is discharged through the concentrated water outlet 113 . In addition, a sealing cup 124 is provided between the pretreatment filter element 122 and the fine filter layer 123 , and the sealing cup 124 is used to isolate the water filtered by the pretreatment filter element 122 and the waste water flowing out from the reverse osmosis membrane 1231 .

Certainly, the fine filter layer 123 may also be an ultrafiltration membrane or a nanofiltration membrane, but is not limited to the above-mentioned types.

Further, the plurality of filter layers may also include a folded PP layer 121 , and the folded PP layer 121 may be disposed between the water inlet 111 and the pretreatment filter element 122 . The folded PP layer 121 has a large membrane filtration area and strong dirt-holding capacity, so it can not only filter impurities in water but also protect the pretreatment filter element 122 and the fine filter layer 123 to prolong the life of the pretreatment filter element 122 .

Here, it should be noted that the folded PP layer 121 can be selected and replaced separately, and can be selectively installed according to water quality, and the specific parameters of the folded PP layer 121 can also be selected according to different water quality adaptability.

In addition, the composite filter element 12 can also include a plurality of sealing rings 125, and the combined use of the plurality of sealing rings 125 can ensure that the composite filter element 12 has good sealing performance, thereby preventing the water in the composite filter element 12 from leaking out, and at the same time preventing The water passing through different filter layers in the composite filter element 12 is mixed, so that the water quality of the effluent can be guaranteed.

Further, referring to Fig. 3-Fig. 5, the upper end of the housing 11 is open and the lower end is closed, the upper end of the housing 11 is provided with a gland 13 for positioning the composite filter element 12, and the gland 13 is detachably connected with the housing 11 for Position composite filter element 12. When the core needs to be replaced, the gland 13 can be removed from the housing 11, a new composite filter element 12 is put into the housing 11, and the gland 13 is installed on the upper end of the housing 11 to position the composite filter element 12, At the same time, the gland 13 can also effectively prevent impurities such as dust from entering, ensure the quality of clean water, and make the core replacement operation convenient and easy, without the need for professionals to replace it.

Referring to FIG. 2 , the composite filter element assembly 1 may further include a pressure ring 14 sleeved on the upper end of the housing 11 to further improve the stability and safety of the composite filter element assembly 1 . When taking out the composite filter element 12, first remove the pressure ring 14, then take off the gland 13, and then take out the composite filter element 12; Then the gland 13 is covered, and finally the pressure ring 14 is installed.

The water purification system 100 and its working process according to an embodiment of the present utility model will be described in detail below with reference to FIGS. 1-6 .

As shown in FIGS. 1-6 , the water purification system 100 includes a pre-filter 2 , a water inlet solenoid valve 3 , a booster pump 4 and a composite filter element assembly 1 connected in series along the flow direction of the water source. The composite filter element assembly 1 includes a composite filter element 12 and a housing 11 , and the housing 11 is formed with a water source inlet 111 , a concentrated water outlet 113 and a pure water outlet 112 . The booster pump 4 is connected to the water source inlet 111 of the composite filter element assembly 1 , and the waste water valve 5 is connected to the concentrated water outlet 113 of the composite filter element assembly 1 . The water purification system 100 also includes a flexible water bag 71, a diaphragm pump 72, a high pressure switch 6 and a rear faucet 8 connected in series along the flow direction of pure water, and a water level detection switch (not shown), The flexible water bag 71 is connected to the pure water outlet 112 of the composite filter element assembly 1 .

Wherein, the composite filter element 12 includes a folded PP layer 121, a pretreatment filter element 122 (including a PP non-woven fabric winding layer 1221 and an activated carbon fiber winding layer 1222 stacked in sequence along the water flow direction) and The fine filter layer 123, the fine filter layer 123 is a reverse osmosis membrane, and the fine filter layer 123 includes a reverse osmosis membrane 1231 and a central water collection pipe 1232, and the reverse osmosis membrane 1231 is wound on the central water collection pipe 1232. In addition, a sealing cup 124 is provided between the pretreatment filter element 122 and the fine filter layer 123 .

Specifically, with reference to Fig. 1 and in combination with Fig. 6, when the rear faucet 8 is opened, the high-pressure switch 6 is pressure-relieved and closed, the water inlet solenoid valve 3 is opened, and the booster pump 4 and the diaphragm pump 72 are both turned on. The water system 100 starts water purification work. The water source enters the water purification system 100 through the pre-filter 2 to filter impurities of larger particles, and then the water source flows into the booster pump 4 through the water inlet solenoid valve 3, and the booster pump 4 pressurizes the water source, and the pressurized water source passes through The water source inlet 111 of the composite filter element assembly 1 enters into the casing 11 of the composite filter element assembly 1 . The water source entering the housing 11 is preliminarily filtered through the folded PP layer 121 and the pretreatment filter element 122 in turn. Due to the sealing effect of the sealing cup 124, the water filtered by the pretreatment filter element 122 can only flow upwards and enter through the inlet of the fine filter layer 123. Fine filtration is performed in the fine filter layer 123 .

At this time, the fine filter layer 123 is a reverse osmosis membrane, and when the water entering the reverse osmosis membrane 1231 flows from top to bottom, a part of the water enters the central water collection pipe 1232 through the reverse osmosis membrane 1231 to become pure water. It can flow out through the pure water outlet 112, and can flow into the flexible water bag 71 for storage. The diaphragm pump 72 can extract the pure water in the flexible water bag 71 and transport it to the rear faucet 8. The pure water finally passes through the rear filter element 82 are filtered and flow out from the water outlet end of the rear clean water faucet 8 to drink or use. The other part of the water that has not passed through the reverse osmosis membrane 1231 has a relatively high impurity concentration, and the waste water with a relatively high impurity concentration flows out through the concentrated water outlet 113 and is discharged through the waste water valve 5 .

When the rear clean water faucet 8 is closed, the high pressure switch 6 is disconnected under pressure, the diaphragm pump 72 is closed, and the high pressure switch 6 sends a signal to the water level detection switch. The water level detection switch controls whether the water inlet solenoid valve 3 and the booster pump 4 are closed or opened according to the water level in the flexible water bag 71 . When the water level in the flexible water bag 71 reaches the predetermined water level, the water inlet solenoid valve 3 and the booster pump 4 are all closed, and the water purification system 100 stops the water purification work; The water solenoid valve 3 and the booster pump 4 are all in the open state, and the water purification system 100 continues to purify water, so that enough pure water is stored in the flexible water bag 71 for backup.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (11)

1. a water cleaning systems, it is characterised in that including:

Composite filter element assembly, described composite filter element assembly has water source import, pure water outlet and condensed water outlet；

Booster pump, described booster pump is connected with the import of described water source；

Wastewater valve, described wastewater valve is connected with the outlet of described condensed water；

Water-storing device, described water-storing device is connected with the outlet of described pure water；

Rearmounted clear water faucet, is provided with rearmounted filter element in described rearmounted clear water faucet, described rearmounted clear water faucet is serially connected in described storage The downstream of water device.

Water cleaning systems the most according to claim 1, it is characterised in that described water-storing device includes:

For storing the flexible water bag of pure water, described flexible water bag is connected with the outlet of described pure water；

Membrane pump, described membrane pump is serially connected between described flexible water bag and described rearmounted clear water faucet, and described membrane pump is used for The pure water of storage in described flexible water bag is extracted out and carried towards described rearmounted clear water faucet.

Water cleaning systems the most according to claim 1 and 2, it is characterised in that the upstream of described booster pump is serially connected with into water Electromagnetic valve, is serially connected with high-voltage switch gear between described rearmounted clear water faucet and described water-storing device, described high-voltage switch gear respectively with institute Stating booster pump and described entering water electromagnetic valve communication, described high-voltage switch gear is according to booster pump described in hydraulic pressure control and described water inlet electromagnetism Valve opening and closing.

Water cleaning systems the most according to claim 3, it is characterised in that described water-storing device also includes water level detection switch, Described water level detection switch respectively with described high-voltage switch gear, described entering water electromagnetic valve and described booster pump communication, put in the rear When clear water faucet is closed, described water level detection switch is according to entering water electromagnetic valve described in the water lev el control in described water-storing device and described Booster pump opening and closing.

Water cleaning systems the most according to claim 4, it is characterised in that described water level detection switch is liquid-level switch or dry Reed pipe.

Water cleaning systems the most according to claim 1, it is characterised in that described rearmounted filter element includes active carbon filter core.

Water cleaning systems the most according to claim 6, it is characterised in that described rearmounted filter element also include ultrafiltration membrane filter element, At least one in micro-filtration membrane filter element and PP cotton filter core.

Water cleaning systems the most according to claim 1, it is characterised in that described wastewater valve for full-gear be path and It is the combination valve of waste water proportional valve in off position.

Water cleaning systems the most according to claim 1, it is characterised in that described water cleaning systems farther includes prefilter Net, described forward filtering net is serially connected in the upstream of described booster pump.

10. according to the water cleaning systems according to any one of claim 1,2 and 6-9, it is characterised in that described composite filter Core assembly includes:

Housing, described housing is formed the import of described water source, the outlet of described pure water and the outlet of described condensed water；

Composite filter element, described composite filter element is located in described housing, and described composite filter element includes multiple filter element layer, the plurality of Filter element layer includes preprocessing filter element and the fine filtering layer of nested arrangement from outside to inside, the spaced apart described water of described preprocessing filter element Source import and the outlet of described condensed water, described fine filtering interlayer separates the outlet of described pure water and described condensed water exports.

11. water cleaning systems according to claim 10, it is characterised in that the open upper end of described housing and lower end closed, The upper end of described housing is provided with the gland for positioning described composite filter element, and described gland is removably used in conjunction mutually with described housing In positioning described composite filter element.