CN216537192U - Filtration system - Google Patents

Abstract

The utility model discloses a filtering system, comprising: first filter core, the water purification water route, the TDS detects the piece, the third filter core, first filter core includes the water inlet, water purification mouth and waste water port, the water purification water route includes first branch road and second branch road, the one end of first branch road and the one end of second branch road switchably communicate with the water purification mouth, the TDS detects the piece and locates between the one end of first branch road and the one end of second branch road and the water purification mouth, the one end and the water purification mouth intercommunication of first branch road when the TDS value of the liquid of flowing through is less than the threshold value, the one end and the water purification mouth intercommunication of second branch road when the TDS value of the liquid of flowing through is higher than or equal to the threshold value, the second branch road is equipped with the second filter core that reduces the TDS value, the third filter core links to each other with the other end of first branch road and the other end of second branch road. Therefore, the water below the threshold and the water above the threshold are prevented from being filtered again through the second filter element, the load of the second filter element during filtering is increased, the water of the two branches can be filtered by the third filter element, and the water quality of the discharged water is further improved.

Description

Filtration system

Technical Field

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

Background

At present, in the technical field of water purification treatment of water quality by a water purifier through a filtering system, a reverse osmosis membrane filter element is widely used as a commonly used filtering device. The reverse osmosis membrane filter element is provided with a reverse osmosis membrane, when raw water (tap water) enters a filter system, certain pressure is applied to the water, so that water molecules and ionic mineral elements in the raw water pass through the reverse osmosis membrane, and meanwhile, macromolecular inorganic salts (such as heavy metal ions, organic matters, bacteria, viruses and the like) in the raw water cannot pass through the reverse osmosis membrane with small membrane pores, so that the water purification effect is realized.

However, after the water purifier stops using for a period of time, due to the principle that high concentration permeates to low concentration, salt ion components in raw water staying inside the water purifier can diffuse to one side of water production, so that when the water purifier operates again, the salt components in the initially coming out pure water are more, the filtering effect is unstable, and the use feeling of a user is reduced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the utility model to propose a filtration system.

A filtration system according to an embodiment of the present invention includes: the filter comprises a first filter element, a water purifying waterway, a TDS detection piece and a third filter element, wherein the first filter element comprises a water inlet, a water purifying port and a waste water port, the water purifying waterway comprises a first branch and a second branch which are connected in parallel, one end of the first branch and one end of the second branch are communicated with the water purifying port in a switchable manner, the TDS detection piece is arranged between one end of the first branch and the water purifying port or between one end of the second branch and the water purifying port, and liquid flowing through the TDS detection piece can selectively flow into the first branch or the second branch. When the TDS value of the liquid flowing through the TDS detection piece is lower than a preset threshold value, the one end of the first branch is communicated with the water purifying port, the liquid flowing through the TDS detection piece flows into the first branch, when the TDS value of the liquid flowing through the TDS detection piece is higher than or equal to the preset threshold value, the one end of the second branch is communicated with the water purifying port, and the liquid flowing through the TDS detection piece flows into the second branch. The second filter core that is used for reducing the TDS value is established ties on the second branch road, the third filter core with the other end of first branch road with the other end of second branch road links to each other.

From this, through the downstream side at first filter core set up TDS detection piece, second filter core and third filter core, so that TDS detection piece can detect the TDS value of the liquid after first filter core filters, increase the detection to first filter core filtration back quality of water, so that the hydroenergy that is less than the threshold value can directly flow to the third filter core, avoid being less than the water of threshold value and all filtering once more through the second filter core, the load when having reduced the second filter core and filtering, and then can filter with pertinence, thereby increase the life of second filter core. Simultaneously, set up the third filter core at the other end of first branch road and second branch road, the quality of water after first filter core and the second filter core filtration can further be guaranteed to the third filter core to make the water that two branch roads are joined all can be filtered by the third filter core, further improve the quality of water of going out.

In some embodiments, the third cartridge includes an inlet through which external tap water is adapted to enter the third cartridge and an outlet connected to the water inlet.

In some embodiments, a booster pump is provided between the outlet and the water inlet.

In some embodiments, a first water inlet valve is provided between the outlet and the booster pump.

In some embodiments, the third filter element includes a pure water outlet and a pure water inlet, the pure water inlet is connected to both the other end of the first branch and the other end of the second branch, and the pure water outlet is adapted to be connected to the outside. The filtration system further comprises a high-voltage switch, and the high-voltage switch is arranged at the downstream of the pure water inlet.

In some embodiments, a first check valve is disposed on the second branch, and the first check valve is located downstream of the second filter element.

In some embodiments, a second water inlet valve is connected in series to the first branch, a third water inlet valve is connected in series to the second branch, and the third water inlet valve is located upstream of the second filter element.

In some embodiments, the second inlet valve and the third inlet valve are both solenoid valves.

In some embodiments, a second check valve is provided between the one end of the first branch and the one end of the second branch and the clean water port, the second check valve being located upstream of the TDS detector.

In some embodiments, the first filter element is an RO filter element, the second filter element comprises ion exchange resin, the third filter element is a composite filter element comprising a front filter element and a rear filter element, the front filter element comprises PP cotton and/or a front carbon rod, and the rear filter element comprises a rear carbon rod.

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

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

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

Reference numerals:

a filtration system 100;

a first filter element 10; a water inlet 11; a water purifying port 12; a waste water port 13;

a purified water circuit 20; a first branch 21; a second inlet valve 211; a second branch 22; a first check valve 221; a third water inlet valve 222; a TDS detecting member 23; a second filter element 24;

a third cartridge 30; a front filter element 30 a; an inlet 31; an outlet 32; a rear filter element 30 b; a pure water inlet 33; a pure water outlet 34;

a booster pump 40; a first water inlet valve 50; a second check valve 60; a waste water solenoid valve 70; a high voltage switch 80.

Detailed Description

An embodiment of the present invention is described in detail below, the embodiment described with reference to the drawings being exemplary, and a filtration system 100 according to an embodiment of the present invention is described below with reference to fig. 1, the filtration system 100 including: first filter core 10, water purification water route 20, TDS detection piece, third filter core 30.

Specifically, as shown in fig. 1, the first filter element 10 includes a water inlet 11, a clean water port 12 and a waste water port 13, the clean water circuit 20 includes a first branch 21 and a second branch 22 connected in parallel, one end of the first branch 21 and one end of the second branch 22 are switchably communicated with the clean water port 12, and a TDS (total dissolved solids) detector 23 is disposed between the one end of the first branch 21 and the clean water port 12 or between the one end of the second branch 22 and the clean water port 12. That is, when the first branch 21 is communicated with the clean water port 12, the second branch 22 is disconnected from the clean water port 12, and the TDS detecting member 23 is provided in the flow path of the communication between the one end of the first branch 21 and the clean water port 12; when the second branch 22 is connected to the clean water port 12, the first branch 21 is disconnected from the clean water port 12, and the TDS detector 23 is disposed in the flow path of the communication between the one end of the second branch 22 and the clean water port 12. The liquid flowing through the TDS detecting member 23 can selectively flow into the first branch 21 or the second branch 22.

When the TDS value of the liquid flowing through the TDS detecting member 23 is lower than the predetermined threshold, one end of the first branch 21 is communicated with the water purifying port 12, the liquid flowing through the TDS detecting member 23 flows into the first branch 21, at this time, the second branch 22 is not communicated with the water purifying port 12, and the TDS detecting member 23 is disposed between the one end of the first branch 21 and the flow path of the communication of the water purifying port 12; when the TDS value of the liquid flowing through the TDS detecting member 23 is higher than or equal to the predetermined threshold value, one end of the second branch 22 is communicated with the clean water port 12, and the liquid flowing through the TDS detecting member 23 flows into the second branch 22, and at this time, the TDS detecting member 23 is disposed between the one end of the second branch 22 and the communicated flow path of the clean water port 12; a second filter element 24 for reducing the TDS value is connected in series on the second branch 22, and a third filter element 30 is connected with the other end of the first branch 21 and the other end of the second branch 22. That is, it is judged according to the result of the TDS detecting member that the clean water port 12 is selectively connected to the first branch passage 21 or the second branch passage 22.

Specifically, the water purifying port 12 of the first filter element 10 is connected to the TDS detector 23, the liquid in the water purifying port 12 is detected by the TDS detector 23 and the detected value is compared with a preset threshold value, and when the TDS value in the water purifying port 12 is smaller than the threshold value, the liquid in the water purifying port 12 flows to the first branch 21 and can flow out after being filtered again by the third filter element 30; on the other hand, when the TDS value in the clean water port 12 is greater than or equal to the threshold value, the liquid in the pipeline flows to the second branch 22, and flows to the third filter element 30 after being filtered by the second filter element 24 in the second branch 22. The liquid may be tap water.

From this, through set up TDS detection piece 23 at the downstream side of first filter core 10, second filter core 24 and third filter core 30, TDS detection piece 23 can detect the TDS value of the liquid after first filter core 10 filters, increase the detection to first filter core 10 filtration back quality of water, so that the hydroenergy that is less than the threshold value can directly flow to third filter core 30, avoid being less than the water of threshold value and the water that is higher than the threshold value all filters once more through second filter core 24, the load when having reduced second filter core 24 and filtering, and then can filter with pertinence, thereby increase second filter core 24's life. Meanwhile, the third filter element 30 is arranged at the other end of the first branch 21 and the other end of the second branch 22, and the third filter element 30 can further ensure the water quality after being filtered by the first filter element 10 and the second filter element 24, so that the water converged by the two branches can be filtered by the third filter element 30, the water quality of the outlet water is further improved, and the use experience of a user is improved.

In some embodiments, as shown in FIG. 1, the third cartridge 30 includes an inlet 31 and an outlet 32, external tap water is adapted to enter the third cartridge 30 through the inlet 31, and the outlet 32 is connected to the inlet 11. Therefore, the external tap water enters the third filter element 30 for filtration before reaching the first filter element 10 of the filter system 100, the load of the first filter element 10 is reduced, the service life of the first filter element 10 is prolonged, and the third filter element 30 can ensure the working efficiency of the first filter element 10, so that the quality of the filtered tap water is higher.

According to some embodiments of the present invention, as shown in fig. 1, a booster pump 40 is provided between the outlet 32 and the water inlet 11. Therefore, the booster pump 40 is arranged between the outlet 32 of the third filter element 30 and the water inlet 11 of the first filter element 10, so that the booster pump 40 can pressurize running water flowing through, the running water can enter the first filter element 10 more quickly and efficiently, and the first filter element 10 can fully filter the running water.

In some embodiments, a first water inlet valve 50 is provided between the outlet 32 and the booster pump 40. Therefore, the added first water inlet valve 50 can control the opening and closing of the pipeline between the outlet 32 and the water inlet 11, and adjust the amount of tap water flowing to the booster pump 40, so that the booster pump 40 can keep higher working efficiency, the service life of the booster pump 40 is prevented from being influenced by the idling of the booster pump 40, and the energy consumption of the filtering system 100 is increased.

As shown in fig. 1, the third filter element 30 includes a pure water outlet 34 and a pure water inlet 33, the pure water inlet 33 is connected to both the other end of the first branch 21 and the other end of the second branch 22, and the pure water outlet 34 is adapted to be connected to the outside. The filtration system 100 further comprises a high-voltage switch 80, the high-voltage switch 80 being provided downstream of the pure water inlet 33.

Specifically, the pure water flowing through the first branch 21 and the second branch 22 flows toward the pure water inlet 33 of the third filter element 30, and flows out after being filtered again in the third filter element 30. The high pressure switch 80 is provided at the pure water outlet 34 of the third filter element 30 to control the outflow of pure water in the filter system 100, and the high pressure switch 80 is provided on the downstream side of the pure water outlet 34 in this embodiment. Here, the position of the high-pressure switch 80 is not limited to this, and may be provided at a position close to the water path where the pure water outlet 34 is located, such as downstream of the third filter element 30 (e.g., a rear filter element 30b (described below)), for example, at a position close to the water path where the pure water outlet 34 is located, such as downstream of the pure water inlet 33 and upstream of the pure water outlet 34. From this, the high pressure switch 80 that sets up can increase pressure when the user receives the water and realize quick play water, reduces the time of user's water receiving.

As shown in fig. 1, the second branch 22 is provided with a first check valve 221, and the first check valve 221 is located downstream of the second filter element 24. The first check valve 221 is connected between the third filter element 30 and the second filter element 24, and the flow direction of the water path in the first check valve 221 is from the end connected to the second filter element 24 to the end of the third filter element 30, and the first check valve is located downstream of the second filter element 24 in the whole filtering system 100. From this, can avoid the running water backward flow after second filter core 24 filters, prevent that the filtration load of second filter core 24 from increasing to make the running water after second filter core 24 filters abundant flowing out after third filter core 30 filters, avoid second branch road 22 during out-of-operation simultaneously, the pure water that flows out through first branch road 21 can backward flow enter second branch road 22, thereby increases the TDS value of pure water, reduces the quality of water of first branch road 21.

In some embodiments, a second inlet valve 211 is connected in series with the first branch 21, a third inlet valve 222 is connected in series with the second branch 22, and the third inlet valve 222 is located upstream of the second filter element 24.

As shown in fig. 1, a second water inlet valve 211 is disposed on the first branch 21, the second water inlet valve 211 is disposed downstream of the TDS detector 23, a third water inlet valve 222 is disposed on the second branch 22, and the third water inlet valve 222 is disposed between the TDS detector 23 and the second filter element 24, and the opening and closing of the first branch 21 and the second branch 22 can be controlled by the second water inlet valve 211 and the third water inlet valve 222. For example, when the TDS value of the tap water detected by the TDS detecting part 23 is less than a preset threshold value, the second water inlet valve 211 is opened, and the third water inlet valve 222 is closed, so that the tap water filtered by the first filter element 10 flows from the first branch 21 to the third filter element 30. When the TDS value of the tap water detected by the TDS detecting element 23 is greater than or equal to the preset threshold value, the second water inlet valve 211 is closed, and the third water inlet valve 222 is opened, so that the tap water filtered by the first filter element 10 flows to the second branch 22, and flows to the third filter element 30 after being filtered by the second filter element 24 on the second branch 22, thereby realizing multiple times of filtering.

Therefore, the second water inlet valve 211 and the third water inlet valve 222 arranged on the first branch 21 and the second branch 22 are beneficial to realizing the control of the opening and closing of the first branch 21 and the second branch 22, so that different water qualities detected by the TDS detector 23 can flow to different branches, tap water with a TDS value smaller than a threshold value is prevented from flowing to the second filter element 24, the load of the second filter element 24 is increased, and the mutual permeation between the two branches is avoided.

In addition, TDS detects piece 23 and sets up the low reaches at first filter core 10, can increase TDS detects piece 23 and filter the detection of back quality of water to first filter core 10, avoid because filtration system 100 is out of work for a long time, the water infiltration of high concentration enters low concentration in the first filter core 10 one side, reduce the quality of water of the running water that first filter core 10 flows out, and can not obtain effective detection, compare in TDS detects piece 23 and sets up the upper reaches at first filter core 10, the position that TDS detects piece 23 set up in this application is more reasonable, detection effect is effective and accurate.

Optionally, the second water inlet valve 211 and the third water inlet valve 222 are both solenoid valves, so that the second water inlet valve 211 and the third water inlet valve 222 can be automatically controlled, which is beneficial to the automatic control of the filtering system 100 and improves the intelligent degree of the filtering system 100.

Further, as shown in fig. 1, a second check valve 60 is disposed between one end of the first branch 21 and one end of the second branch 22 and the clean water port 12, and the second check valve 60 is located upstream of the TDS detector 23. From this, set up the second check valve between TDS detection piece 23 and first filter core 10, avoid the running water backward flow after first filter core 10 filters, influence the running water flow rate of first filter core 10 water purification mouth 12, reduce the water efficiency of first filter core 10, avoid the running water infiltration that the TDS value is higher than the threshold value to advance first branch road 21 and flow.

In some embodiments, first filter element 10 is a RO (Reverse Osmosis) filter element, second filter element 24 comprises ion exchange resin, third filter element 30 is a composite filter element comprising a front filter element 30a and a rear filter element 30b, front filter element 30a comprises PP (polymer cotton) wool and/or carbon rods, and rear filter element 30b comprises a rear carbon rod.

It can be understood that when the tap water passes through the third filter element 30, the tap water is first filtered by the PP wool and the carbon rod included in the front filter element 30a in the third filter element 30, the filtered tap water enters the first filter element 10 from the water inlet 11 under the action of the first water inlet valve 50 and the booster pump 40, and the filtered pure water passing through the first filter element 10 flows from the water purifying port 12 to the TDS detecting member 23 through the check valve, the TDS detecting member 23 flows tap water smaller than the threshold value to the first branch 21 according to the detected TDS value, and the part of the tap water larger than or equal to the threshold value flows to the second branch 22, and the waste water passing through the first filter element 10 flows from the waste water port 13. The one end and the TDS detection piece 23 of first branch road 21 and second branch road 22 are connected, the other end and the third filter core 30 intercommunication of first branch road 21 and second branch road 22, the running water that flows through second branch road 22 can pass through second filter core 24's secondary filtration, second filter core 24's filter media can be the ion exchange resin that can reduce the TDS value, the running water that reduces the TDS value flows to third filter core 30 behind first check valve, and finally flow out under high pressure switch control. The ion exchange resin can be mainly used for removing various anions and cations in water, recovering toxic ions and nonionic substances in the water solution and playing a role in purifying water quality.

It should be noted that the third filter element 30 includes a front filter element 30a and a rear filter element 30b, the filter material of the front filter element 30a may be one or two of PP cotton and a front carbon rod, and may be selected according to the use requirement, for example, the front filter element 30a may use the PP cotton and the front carbon rod at the same time, and for example, one of the PP cotton and the front carbon rod may be used to purify water, and the filter material of the rear filter element 30b may be a rear carbon rod. The front filter element 30a is provided with an inlet 31 and an outlet 32 for external tap water to flow in and out, the outlet 32 is connected with the first water inlet valve 50, the rear filter element 30b is provided with a pure water inlet 33 and a pure water outlet 34, the pure water outlet 34 is communicated with a high-pressure switch to control pure water to flow out, the pure water inlet 33 is connected with the first check valve 221, and pure water flowing out from the first branch 21 and the second branch 22 can flow into the third filter element 30 from the pure water inlet 33.

From this, the first filter core 10 and the third filter core 30 that set up can carry out twice to the running water and filter, the part to the TDS value more than or equal to threshold value of the running water after filtering makes its flow direction second filter core 24, and filter through second filter core 24 and can reduce the TDS value, filter once at rearmounted filter core 30b in third filter core 30, improve the quality of water that flows to the user, avoid the influence of waste water or the higher water of TDS value in filtration system 100 to the pure water, can promote user's experience, because high tension switch 80 lug connection is third filter core 30, the time of waiting for the pure water when can reducing the user and using, improve user's experience.

In addition, a branch of the domestic water may be disposed between the third filter element 30 and the first water inlet valve 50, and the tap water filtered by the third filter element 30 may flow out through the branch, for example, the domestic water after being simply filtered may be used for washing clothes, mopping floor, etc. Second filter element 24 can be combined with a rear filter element 30b of third filter element 30 to save space for installing filter system 100.

In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A filtration system, comprising:

the first filter element comprises a water inlet, a water purifying port and a waste water port;

the water purification device comprises a water purification waterway, a water purification waterway and a water purification control unit, wherein the water purification waterway comprises a first branch and a second branch which are connected in parallel, and one end of the first branch and one end of the second branch are communicated with a water purification port in a switchable manner;

the TDS detection part is arranged between the one end of the first branch and the water purifying port or between the one end of the second branch and the water purifying port, and liquid flowing through the TDS detection part can selectively flow into the first branch or the second branch;

when the TDS value of the liquid flowing through the TDS detection part is lower than a preset threshold value, the one end of the first branch is communicated with the clean water port, the liquid flowing through the TDS detection part flows into the first branch, when the TDS value of the liquid flowing through the TDS detection part is higher than or equal to the preset threshold value, the one end of the second branch is communicated with the clean water port, and the liquid flowing through the TDS detection part flows into the second branch; a second filter element for reducing the TDS value is connected in series on the second branch;

and the third filter element is connected with the other end of the first branch and the other end of the second branch.

2. The filtration system of claim 1, wherein the third filter element includes an inlet through which external tap water is adapted to enter the third filter element and an outlet connected to the water inlet.

3. The filtration system of claim 2, wherein a booster pump is disposed between the outlet and the water inlet.

4. A filtration system according to claim 3, wherein a first water inlet valve is provided between the outlet and the booster pump.

5. The filtration system of claim 2, wherein the third filter element comprises a pure water outlet and a pure water inlet, the pure water inlet being connected to both the other end of the first branch and the other end of the second branch, the pure water outlet being adapted to be connected to an outside;

the filtration system further comprises a high-voltage switch, and the high-voltage switch is arranged at the downstream of the pure water inlet.

6. The filtration system of claim 1, wherein a first check valve is disposed on the second leg downstream of the second filter element.

7. The filtration system of claim 1, wherein a second inlet valve is connected in series with the first branch;

and a third water inlet valve is connected in series on the second branch, and is positioned at the upstream of the second filter element.

8. The filtration system of claim 7, wherein the second inlet valve and the third inlet valve are both solenoid valves.

9. The filtration system of claim 1, wherein a second check valve is disposed between the one end of the first branch and the one end of the second branch and the clean water port, the second check valve being upstream of the TDS detector.

10. The filtration system of any one of claims 1-9, wherein the first filter element is an RO filter element, the second filter element comprises ion exchange resin, the third filter element is a composite filter element comprising a pre-filter element comprising PP cotton and/or a pre-carbon rod and a post-filter element comprising a post-carbon rod.

Images