CN206624706U - Filter water system - Google Patents

Abstract

The utility model discloses a filtering water system, which comprises: a raw water inlet; a pure water outlet; a purified water outlet; a waste water outlet; , the integrated filter element has a first interface to a fourth interface, the first interface is connected to the raw water inlet, the second interface is connected to the pure water outlet, the purified water outlet and the waste water outlet are both connected to the third interface, and the raw water inlet The raw water entering the water inlet is suitable for flowing out from the pure water outlet after being filtered by the pre-filter element, the fine filter element and the post-filter element in turn, and the raw water entering from the raw water inlet is only suitable for flowing out from the clean water outlet after being filtered by the pre-filter element , wherein at least one of the flow path connected to the pure water outlet and the fourth interface is provided with a water storage device. According to the water filtering system of the utility model, the user's demand for a large amount of water is met, and the water filtering system can obtain two kinds of water with different water qualities: pure water and purified water.

Description

water filtration system

technical field

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

Background technique

In the related art, the water filtration system of the water purifier generally can only obtain one kind of water quality. However, since users need other domestic water besides drinking water, such as laundry water, therefore, only one kind of water quality can be obtained from the filtration water system Unable to meet the water demand of users. Moreover, when the user needs a large amount of water, the filtered water system cannot produce a large amount of water in a short time for the user to use.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. For this reason, the utility model proposes a water filtering system, which can meet the user's demand for a large amount of water, and can improve the utilization rate of water resources.

The water filtration system according to the embodiment of the utility model includes: a raw water inlet; a pure water outlet; a purified water outlet; a waste water outlet; The integrated filter element has a first interface to a fourth interface, the first interface is connected to the raw water inlet, the second interface is connected to the pure water outlet, and the purified water outlet is connected to the The waste water outlets are all connected to the third interface, and the raw water entering from the raw water inlet is successively filtered by the pre-filter element, the fine filter element and the post-filter element, and is suitable for passing through the pure water outlet. outflow, the raw water entering from the raw water inlet is only suitable for flowing out from the purified water outlet after being filtered by the pre-filter, wherein the flow path connected to the pure water outlet and the fourth interface At least one of them is provided with a water storage device.

According to the filtered water system of the embodiment of the utility model, by setting the water storage device on at least one of the flow path connected with the pure water outlet and the fourth interface of the filtered water system, the user's demand for a large amount of water can be met, and the filtered water The water system can obtain pure water and purified water with two different water qualities, which improves the utilization rate of water resources and realizes water saving.

According to some embodiments of the present utility model, a water inlet valve and a booster pump are provided between the first interface and the raw water inlet, and the water inlet valve is located upstream of the booster pump. Thus, the filtered water system can obtain pure water and purified water with two different water qualities, thereby improving the utilization rate of water resources.

According to some embodiments of the present utility model, the water storage device is provided with a detection device, and when the detection device detects that the liquid in the water storage device is not full, the controller of the filtered water system controls the inlet The water valve is opened and the booster pump works. Thus, the automatic water storage function of the filtered water system is realized.

According to some embodiments of the present utility model, the detection device is a pressure sensor or a liquid level sensor, which makes the water filtration system more intelligent.

According to some embodiments of the present utility model, a pre-filter is provided between the raw water inlet and the water inlet valve, so that the pre-filter can protect the water inlet valve and the booster pump.

According to some embodiments of the present invention, the third interface includes a first sub-interface and a second sub-interface independent of each other, the clean water outlet is connected to the first sub-interface, and the waste water outlet is connected to the connected to the second sub-interface. Thereby, the utilization rate of water resources can be improved.

According to some embodiments of the present utility model, a first one-way valve and a first high-pressure switch are provided between the second interface and the pure water outlet, and the first one-way valve and the first high-pressure switch All in one. Therefore, the components of the water filtering system can be reduced, and the water filtering system can be simplified.

According to some embodiments of the present utility model, a second one-way valve and a second high-pressure switch are provided between the third interface and the clean water outlet, and the second one-way valve and the second high-pressure switch All in one. Thus, the components of the water filtering system can be further reduced, and the water filtering system can be further simplified.

According to some embodiments of the present utility model, the water storage device is a water storage bag, a pressure tank or a water tank. Thus, the water storage device can be selected and set according to the actual situation, so as to better meet the actual requirements.

According to some embodiments of the present invention, the fine filter element is a reverse osmosis filter element or a nanofiltration membrane filter element. Thus, the water quality of pure water is guaranteed, thereby ensuring the health of users.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic diagram of a water filtration system according to an embodiment of the present invention.

Reference signs:

100: water filtration system;

100a: raw water inlet; 100b: pure water outlet;

100c: clean water outlet; 100d: waste water outlet;

101: raw water flow path; 102: pure water flow path; 103: clean water flow path;

104: waste water flow path; 105: water storage flow path;

1: integrated filter element; 10a: first interface; 10b: second interface;

10c: the third interface; 10d: the fourth interface;

2: water storage device; 3: water inlet valve; 4: booster pump; 5: pre-filter;

6: High pressure switch of the first one-way valve; 7: High pressure switch of the second one-way valve;

8: Waste water solenoid valve; 9: Pure water valve; 10: Water purification valve.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In the description of the present utility model, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The following describes a water filtration system 100 according to an embodiment of the present invention with reference to FIG. 1 .

As shown in FIG. 1 , a water filtration system 100 according to an embodiment of the present invention includes a raw water inlet 100a, a pure water outlet 100b, a purified water outlet 100c, a waste water outlet 100d and an integrated filter element 1 .

The integrated filter element 1 includes a pre-filter element, a fine filter element and a post-filter element. The integrated filter element 1 has a first interface 10a, a second interface 10b, a third interface 10c and a fourth interface 10d. The first interface 10a is connected to the raw water inlet 100a, the second interface 10b is connected to the pure water outlet 100b, the purified water outlet 100c and the waste water outlet 100d are connected to the third interface 10c, and the raw water entering from the raw water inlet 100a passes through the pre-filter and the fine filter in turn It is suitable to flow out from the pure water outlet 100b after being filtered by the post filter element, and the raw water entering from the raw water inlet 100a is only suitable to flow out from the purified water outlet 100c after being filtered by the pre-filter element, wherein the pure water outlet 100b is connected At least one of the flow path and the fourth interface 10d is provided with a water storage device 2 .

Here, it needs to be explained that the water obtained after the raw water is filtered through the pre-filter element, the fine filter element and the post-filter element of the integrated filter element 1 in turn is "pure water", and the pure water can be directly drunk; while the raw water only passes through the integrated filter element The water obtained after filtering by the pre-filter of 1 is "clean water", and the purified water can be used as domestic water, such as washing clothes, flushing toilets, etc.

For example, as shown in Figure 1, the filtered water system 100 may further include a raw water flow path 101, a pure water flow path 102, a purified water flow path 103, a waste water flow path 104 and a water storage flow path 105, specifically, an integrated filter element The first interface 10a of 1 is connected to the raw water inlet 100a through the raw water flow path 101, the second interface 10b of the integrated filter element 1 is connected to the pure water outlet 100b through the pure water flow path 102, and the third interface 10c of the integrated filter element 1 Connect to the clean water outlet 100c through the clean water flow path 103, and the third interface 10c is connected to the waste water outlet 100d through the waste water flow path 104, wherein the water storage device 2 is arranged on the water storage flow path 105, and the water storage device 2 is connected to the fourth interface 10d of the integrated filter element 1 through the water storage channel 105. Further, the pure water outlet 100b can be provided with a pure water valve 9 to realize the opening and closing of the pure water outlet 100b. Similarly, the purified water outlet 100c can be provided with a purified water valve 10 to realize the purification of the purified water outlet 100c. For the opening and closing of the waste water flow path 104, a waste water valve may be provided to realize the opening and closing of the waste water outlet 100d. Optionally, the waste water valve can be a waste water solenoid valve 8, and the waste water solenoid valve 8 is in a power-off state. At this time, small holes are formed in the waste water solenoid valve 8 to ensure the flow of the waste water flow path 104, while maintaining The inlet water pressure before the fine filter element. It can be understood that the specific structure and working principle of the wastewater solenoid valve 8 are well known to those skilled in the art, and will not be repeated here.

When it is necessary to obtain pure water, the pure water valve 9 can be opened, and the water purification valve 10 can be kept in a closed state, and the raw water flows into the integrated filter element 1 through the raw water flow path 101 through the raw water inlet 100a through the first interface 10a, and is sequentially After being filtered by the pre-filter element, the fine filter element and the post-filter element, pure water is obtained, and the pure water flows out of the integrated filter element 1 from the second interface 10b, and flows out of the pure water outlet 100b through the pure water flow path 102, so that users can use it , pure water can be directly used as drinking water. During this process, the generated waste water flows out of the integrated filter element 1 through the third interface 10c, and flows out through the waste water flow path 104 through the waste water outlet 100d. Wherein, the pre-filter element can perform preliminary filtration on the raw water entering through the first interface 10a. For example, the pre-filter element can effectively remove rust, sediment, colloid, residual chlorine and some organic matter in the adsorbed water. The fine filter element can finely filter the water that has been pre-filtered by the pre-filter. For example, the fine filter element can effectively remove bacteria, viruses and heavy metal ions in the water. The post-filter element can further filter the water finely filtered by the fine filter element. For example, the post-filter element can effectively remove residual chlorine and organic matter and improve the taste of water.

When it is necessary to obtain clean water, the clean water valve 10 can be opened and the pure water valve 9 can be kept in a closed state. The raw water flows into the integrated filter element 1 through the raw water inlet 100a through the raw water flow path 101 through the first interface 10a, and passes through the After the pre-filter is filtered, clean water is obtained. The clean water flows out of the integrated filter element 1 from the third interface 10c, and flows out from the clean water outlet 100c through the clean water flow path 103. The clean water can be used as daily water for users, such as laundry water etc. During this process, a small amount of waste water or almost no waste water is produced.

It can be known from the above that the water filtration system 100 can obtain pure water and purified water with two different water qualities for different purposes, so that water resources can be fully utilized, the utilization rate of water resources is improved, and water conservation is achieved. use water.

When a large amount of water is needed, a certain amount of water can be stored in the water storage device 2 in advance. Specifically, the pure water valve 9 can be closed and the water purification valve 10 can be closed at the same time. The raw water flows from the raw water inlet 100a through the raw water flow path 101 through the first interface 10a into the integrated filter element 1, and then passes through the pre-filter element, fine filtration After filtering, the filter element flows out of the integrated filter element 1 from the fourth interface 10d, and flows into the water storage device 2 through the water storage flow path 105 for storage until the water storage device 2 is full of water. During this process, the generated waste water can also flow out of the integrated filter element 1 through the third interface 10c, and flow out through the waste water flow path 104 through the waste water outlet 100d. Due to the setting of the water storage device 2, when the pure water valve 9 is opened and the water purification valve 10 is kept in a closed state, the water storage device 2 can pass the water in the water storage device 2 through the water storage flow path 105 through pressure or other power. It is re-sent into the integrated filter element 1 through the fourth interface 10d, filtered by the rear filter element to become pure water, and flows out from the pure water outlet 100b through the pure water flow path 102, thereby satisfying the user's demand for a large amount of water.

Of course, the utility model is not limited thereto, and the water storage flow path 105 at the fourth interface 10d and the pure water flow path 102 can be respectively provided with a water storage device 2 (not shown in the figure), so as to further meet the user's need for a large amount of water. need. Alternatively, the filtered water system 100 may not include the water storage flow path 105. At this time, the water storage device 2 may be arranged on the pure water flow path 102 (not shown in the figure). The demand for water, and the components of the water filtration system 100 are relatively few, which reduces the occupied space of the entire water filtration system 100 and saves costs.

According to the filtered water system 100 of the embodiment of the present invention, by setting the water storage device 2 on at least one of the flow path connected to the pure water outlet 100b and the fourth interface 10d of the filtered water system 100, it can meet the user's large amount of water consumption. demand. Moreover, by setting the first interface 10a, the second interface 10b and the third interface 10c on the integrated filter element 1, and connecting the first interface 10a with the raw water inlet 100a of the filtered water system 100, the second interface 10b is connected to the pure water The water outlet 100b is connected, and the purified water outlet 100c and the waste water outlet 100d are connected to the third interface 10c, so that the filtered water system 100 can obtain pure water and purified water with two different water qualities for different purposes. Water resources can be fully utilized, the utilization rate of water resources is improved, and water conservation is realized. In addition, by adopting the integrated filter element 1 composed of the pre-filter element, the fine filter element and the rear filter element, the integrated filter element 1 has an integrated structure, which facilitates the replacement of the integrated filter element 1 and reduces the volume of the integrated filter element 1 , while simplifying the flow connection of the water filtering system 100 , thereby improving the applicability of the water filtering system 100 .

In some embodiments of the present utility model, a water inlet valve 3 and a booster pump 4 are provided between the first interface 10a and the raw water inlet 100a, and the water inlet valve 3 is located upstream of the booster pump 4 . Here, it should be noted that "upstream" can be understood as upstream in the direction of water flow. For example, as shown in Figure 1, the water inlet valve 3 and the booster pump 4 can be arranged at intervals on the raw water flow path 101. The water inlet valve 3 is used to control the conduction and isolation of the raw water flow path 101. When the water inlet valve 3 is opened , the raw water can flow into the integrated filter element 1 through the raw water flow path 101 for filtration; when the water inlet valve 3 is closed, the raw water cannot flow into the integrated filter element 1 . The booster pump 4 is used to increase the pressure of the raw water to ensure that the purified water filtered by the pre-filter element can penetrate into the fine filter element for filtration. Specifically, when the water inlet valve 3 is opened and the booster pump 4 is working, the pressure of the raw water flowing to the integrated filter element 1 is relatively high, so that the purified water filtered by the pre-filter element can smoothly penetrate into the fine filter element After filtering, the pure water obtained at this time can flow out from the pure water outlet 100b through the pure water flow path 102 through the second interface 10b. When the water inlet valve 3 is opened and the booster pump 4 stops working, only clean water can be obtained at this moment, and the obtained clean water can flow out from the clean water outlet 100c through the clean water flow path 103 through the third interface 10c. Thus, the water filtering system 100 can obtain pure water and purified water with two different water qualities, thereby improving the utilization rate of water resources. Wherein, the water inlet valve 3 may be an electromagnetic valve, but not limited thereto.

Further, a detection device (not shown) is provided on the water storage device 2, and when the detection device detects that the liquid in the water storage device 2 is not full, the controller (not shown) of the water filtration system 100 controls the water intake Valve 3 is open and booster pump 4 works. Thus, by installing a detection device on the water storage device 2 that can detect whether the liquid in the water storage device 2 is full, the automatic water storage function of the filtered water system 100 can be realized, thereby meeting the water supply demand.

For example, as shown in FIG. 1 , when the pure water valve 9 and the water purification valve 10 are closed, the detection device can detect in real time whether the water stored in the water storage device 2 has filled the water storage device 2 . When the detection device detects that the water in the water storage device 2 is not full, the detection device transmits the signal to the controller, and the controller controls the water inlet valve 3 to open and the booster pump 4 to start, so that the raw water can flow into the integrated filter element 1, and After being filtered by the pre-filter element and the fine filter element in turn, the integrated filter element 1 flows out from the fourth interface 10d, and finally flows into the water storage device 2 through the water storage flow path 105 for storage until the water storage device 2 is full. When the detection device detects that the water in the water storage device 2 is full, the signal is transmitted to the controller, and the controller controls the water inlet valve 3 to close and the booster pump 4 to stop working.

Optionally, the detection device is a pressure sensor or a liquid level sensor or the like. The pressure sensor can be used to detect the pressure of the liquid in the water storage device 2, and the liquid level sensor can be used to detect the liquid level of the liquid in the water storage device 2, which makes the water filtration system 100 more intelligent and greatly facilitates users.

When the detection device is a pressure sensor, when the pressure detected by the pressure sensor is less than its set value (for example, when the liquid in the water storage device 2 is full, the pressure of the liquid can be used as the set value), the controller controls the water intake The valve 3 is opened, the booster pump 4 is started, and the raw water flows into the water storage device 2 after being filtered by the pre-filter element and the fine filter element, until the water storage device 2 is full of water, at which time the pressure detected by the pressure sensor reaches its set value value, the controller controls the water inlet valve 3 to close and the booster pump 4 to stop running.

When the detection device is a liquid level sensor, when the liquid level detected by the liquid level sensor is less than its preset value (for example, when the liquid in the water storage device 2 is full, the liquid level of the liquid can be used as a preset value), control The device controls the water inlet valve 3 to open and the booster pump 4 to start. The raw water flows into the water storage device 2 after being filtered by the pre-filter element and the fine filter element. The water volume in the water storage device 2 gradually increases until the water storage device 2 is full. Until the liquid level detected by the liquid level sensor reaches its preset value, the controller controls the water inlet valve 3 to close and the booster pump 4 to stop running.

In a further embodiment of the present utility model, as shown in FIG. 1, a pre-filter 5 is provided between the raw water inlet 100a and the water inlet valve 3, and the pre-filter 5 can filter the visible matter in the raw water, for example , rust and other large particle impurities, etc., so as to avoid the blockage of the raw water flow path 101, and to avoid the wear of the water inlet valve 3 and the booster pump 4 by the impurities in the raw water, so as to protect the water inlet valve 3 and the booster pump 4 .

In some embodiments of the present utility model, the third interface 10c includes a first sub-interface and a second sub-interface (not shown) that are independent of each other, the clean water outlet 100c is connected to the first sub-interface and the waste water outlet 100d Connect to the second sub-interface. At this time, the water purification outlet 100c is connected to the first sub-interface through the water purification flow path 103, and the waste water outlet 100d is connected to the second sub-interface through the waste water flow path 104, and the water purification flow path 103 and the waste water flow path 104 are independent of each other. The two flow paths, because the first sub-interface and the second sub-interface are independent of each other, all the purified water filtered by the pre-filter element can flow out from the purified water outlet 100c, and no waste water flows out, thereby further improving the utilization rate of water resources . Of course, the clean water flow path 103 and the waste water flow path 104 can also share part of the flow path. For example, in the example of FIG. One end of one end is connected with the third interface 10c, and the other two ends are respectively connected with the clean water outlet 100c and the waste water outlet 100d, which can reduce pipeline joints, simplify the waterway of the water filtration system 100, and improve the reliability of the water filtration system 100 sex.

In some embodiments of the present utility model, a first one-way valve and a first high-pressure switch are provided between the second interface 10b and the pure water outlet 100b, and the first one-way valve and the first high-pressure switch are integrated into one body. A second one-way valve and a second high-pressure switch are provided between the three interfaces 10c and the clean water outlet 100c, and the second one-way valve and the second high-pressure switch are integrated into one body. The first one-way valve can prevent the pure water in the pure water flow path 102 from flowing back into the integrated filter element 1, and the second one-way valve can prevent the purified water in the pure water flow path 103 from flowing back into the integrated filter element 1. The high-pressure switch and the second high-pressure switch can detect the pressure at their positions, and transmit the detection signal to the controller. Feedback control of booster pump 4.

For example, in the example of FIG. 1, the first one-way valve and the first high-pressure switch between the second interface 10b and the pure water outlet 100b are integrated into the first one-way valve high-pressure switch 6, and the third interface 10c is connected to the purified water outlet 100b. A second one-way valve high-pressure switch 7 is provided between the water outlets 100c, and the second one-way valve high-pressure switch 7 is integrated by the second one-way valve and the second high-pressure switch. Thus, by integrating the first one-way valve and the first high-pressure switch into one structure, and integrating the second one-way valve and the second high-pressure switch into one structure, the components of the water filtration system 100 are reduced, thereby simplifying the filtration process. Water system 100.

When it is necessary to obtain pure water, the pure water valve 9 can be opened and the water purification valve 10 can be kept in a closed state. The first high pressure switch can detect that the pressure at its location is less than its set pressure p ₁ , wherein the set pressure p ₁ can satisfy 0.2MPa≤p ₁ ≤0.25MPa, and transmit the signal to the controller. The controller controls the water inlet valve 3 to open and the booster pump 4 to work. The raw water passes through the raw water inlet 100a through the raw water flow path 101 through the The interface 10a flows into the integrated filter element 1, and the pure water is obtained after being filtered by the integrated filter element 1 in sequence, and finally the pure water flows out from the pure water outlet 100b for the user to drink directly. Then, close the pure water valve 9, due to the reverse water flow limitation of the first one-way valve, the pressure at the position of the first high-pressure switch gradually increases, when the above-mentioned pressure reaches the set pressure p ₁ , the first high-pressure switch will signal Transfer to the controller, the controller controls the water inlet valve 3 to close, and the booster pump 4 stops working. It can be understood that the setting pressure p1 of the _first high pressure switch can be set according to the actual situation, so as to better meet the needs of users.

When it is necessary to obtain clean water, the clean water valve 10 can be opened and the pure water valve 9 can be kept in a closed state. The second high pressure switch can detect that the pressure at its location is less than its set pressure p ₂ , where the set pressure p ₂ can satisfy 0.2MPa≤p ₂ ≤0.25MPa, and transmit the signal to the controller, the controller controls the water inlet valve 3 to open, the booster pump 4 stops working, and the raw water passes through the raw water flow path 101 through the raw water inlet 100a An interface 10a flows into the integrated filter element 1, and is filtered by the pre-filter element of the integrated filter element 1 in turn to obtain purified water, and the purified water finally flows out from the purified water outlet 100c for users to use. At this time, even if the pure water valve 9 is opened, no pure water will flow out from the pure water outlet 100b. Then, close the water purification valve 10, due to the reverse water flow limitation of the second check valve, the pressure at the position of the second high pressure switch gradually increases, when the above pressure reaches the set pressure p ₂ , the second high pressure switch will signal Transfer to the controller, the controller controls the water inlet valve 3 to close, and the booster pump 4 stops working. It can be understood that the set pressure p2 of the _second high pressure switch can be set according to the actual situation, so as to better meet the needs of users.

Of course, in some other embodiments of the present utility model, the first one-way valve and the first high-pressure switch can also be set independently of each other, and the second one-way valve and the second high-pressure switch can also be set independently of each other (not shown in the figure) .

Optionally, the water storage device 2 is a water storage bag, a pressure tank, or a water tank. Wherein, the water storage bag or the pressure tank can be connected to the fourth interface 10d, and the water tank can be set on the pure water flow path 102, so as to meet the user's demand for a large amount of water. The water storage bag is foldable, easy to store, and small in size, and various specifications of the water storage bag can be customized according to the user's requirements to better meet the user's needs. The pressure tank is safe and reliable, and has good economy, and the pressure tank can use the compressibility of the air in the tank to adjust and store the water volume. The water tank has no pollution to the water quality, which ensures the cleanliness and sanitation of the water quality, and the water tank has high strength, light weight, neat and beautiful appearance, and is easy to clean.

Optionally, the fine filter element is a reverse osmosis filter element or a nanofiltration membrane filter element. Since the reverse osmosis membrane can filter out bacteria, viruses, heavy metal ions, etc. in the water, the reverse osmosis filter element can strictly distinguish the water that passes through the reverse osmosis membrane from the impermeable concentrated water. The nanofiltration membrane can remove organic matter and chroma in water, partially remove soluble salts, and remove water hardness, and the nanofiltration membrane filter element can also strictly distinguish the water that passes through the nanofiltration membrane from the impermeable concentrated water Come. Therefore, no matter whether the reverse osmosis filter element or the nanofiltration membrane filter element is used, the filtration accuracy of the fine filter element can be made higher, and the water quality of the water passing through the fine filter element is better, thus ensuring the water quality of pure water and ensuring the user's health.

After the water filtration system 100 has been used for a period of time, the integrated filter element 1 needs to be cleaned. At this time, the pure water valve 9 and the water purification valve 10 can be closed. The controller controls the water inlet valve 3 to open, the booster pump 4 to work, and the waste water electromagnetic When the valve 8 is energized, the wastewater solenoid valve 8 is fully open at this time, and the raw water flows into the integrated filter element 1 from the first interface 10a, and flushes the integrated filter element 1, so that the pre-filter element attached to the integrated filter element 1 can be removed 1. Finely filter the impurities on the filter element, so that the integrated filter element 1 can continue to be used, thereby prolonging the service life of the integrated filter element 1 .

Other configurations and operations of the water filtering system 100 according to the embodiment of the present utility model are known to those skilled in the art and will not be described in detail here.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" is intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A water filtration system, characterized in that, comprises: a raw water inlet, a pure water outlet, a purified water outlet, a waste water outlet and an integrated filter element, and the integrated filter element includes a pre-filter element, a fine filter element and The rear filter element, the integrated filter element has a first interface to a fourth interface, the first interface is connected to the raw water inlet, the second interface is connected to the pure water outlet, and the purified water outlet and The waste water outlets are all connected to the third interface, and the raw water entering from the raw water inlet is successively filtered by the pre-filter element, the fine filter element and the post-filter element, and is suitable for being discharged from the pure water outlet. The raw water that enters from the raw water inlet is only suitable for flowing out from the purified water outlet after being filtered by the pre-filter, wherein the flow path connected to the pure water outlet and the fourth interface At least one of them is provided with a water storage device. 2. The water filtration system according to claim 1, wherein a water inlet valve and a booster pump are provided between the first interface and the raw water inlet, and the water inlet valve is located at the upstream of the pump. 3. The water filtration system according to claim 2, wherein a detection device is provided on the water storage device, and when the detection device detects that the liquid in the water storage device is not full, the filtered water The controller of the system controls the water inlet valve to open and the booster pump to work. 4. The water filtration system according to claim 3, characterized in that the detection device is a pressure sensor or a liquid level sensor. 5. The water filtering system according to any one of claims 2-4, characterized in that a pre-filter is provided between the raw water inlet and the water inlet valve. 6. The water filtration system according to claim 1, wherein the third interface comprises a first sub-interface and a second sub-interface independent of each other, and the water purification outlet is connected to the first sub-interface And the waste water outlet is connected to the second sub-interface. 7. The water filtration system according to claim 1, wherein a first one-way valve and a first high-pressure switch are provided between the second interface and the pure water outlet, and the first one-way The valve is integrated with the first high pressure switch. 8. The water filtration system according to claim 1, characterized in that, a second one-way valve and a second high-pressure switch are provided between the third interface and the clean water outlet, and the second one-way valve The valve is integrated with the second high pressure switch. 9. The water filtration system according to claim 1, wherein the water storage device is a water storage bag, a pressure tank or a water tank. 10. The water filtration system according to claim 1, characterized in that, the fine filter element is a reverse osmosis filter element or a nanofiltration membrane filter element.