Valve device of water purification system and water purification system

Abstract

The present invention discloses a valve device for a water purification system and a water purification system. The valve device of the water purification system includes: a valve body, on which a tap water inlet and a tap water outlet for tap water to flow in / out, as well as a concentrated water inlet and a concentrated water outlet for concentrated water to flow in / out are formed; a first chamber, which is formed inside the valve body, and the tap water inlet and the tap water outlet are communicated through the first chamber; a second chamber, which is formed inside the valve body and is partitioned from the first chamber, and the concentrated water inlet and the concentrated water outlet are communicated through the second chamber; a valve mechanism, which includes a first valve mechanism disposed in the first chamber to cause a certain damping to the tap water during the process of flowing through the first chamber and flowing out from the tap water outlet, and a second valve mechanism disposed in the second chamber to cause a certain damping to the concentrated water during the process of flowing through the second chamber and flowing out from the concentrated water outlet.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification, and particularly to a valve device for a water purification system and a water purification system. Background Art

[0002] In the water purification system of the prior art, in order to reuse the concentrated water discharged from the concentrated water outlet of a water purification component (such as a filter membrane component) and to improve the quality of the produced drinking water, a power device (such as a pump) is usually used to supply at least part of the concentrated water into a water tank to be mixed with the tap water also supplied into the water tank, and then the mixed water is supplied into the water purification component.

[0003] However, due to the increasing requirements for intensification of water purification products in the market, the above-mentioned water purification system applied to water purification products is not conducive to the intensification of water purification products because most of them have a water tank for mixing concentrated water and tap water.

[0004] In the field of water purification systems, in order to meet the requirements of intensification, some water purification systems that do not have the above-mentioned water tank have emerged in the prior art, and a tap water pipe for supplying tap water is connected to a concentrated water pipe for supplying return concentrated water to directly mix tap water and concentrated water. For example, the tap water pipe and the concentrated water pipe are directly connected to two interfaces of a tee joint, and the third interface of the tee joint is used to connect to a water purification component. Although this method can meet the requirements of intensification of water purification products, it brings at least the following problems to the use of water purification products:

[0005] The tap water carrying energy (including the kinetic energy and potential energy of water) and the concentrated water carrying energy are directly mixed to form a large impact, and the reaction force generated due to this impact is not only unfavorable to relevant pipelines such as the tap water pipe and the concentrated water pipe, but worse, the reaction force acting on the concentrated water will also be transmitted to the pump for providing the return power for the concentrated water, causing damage to the internal components of the pump or shortening its service life. Summary of the Invention

[0006] In view of the above technical problems existing in the prior art, embodiments of the present invention provide a valve device for a water purification system and a water purification system.

[0007] To solve the above technical problems, the technical solution adopted in the embodiments of the present invention is:

[0008] A valve device for a water purification system, comprising:

[0009] A valve body, on which there are formed a tap water inlet and a tap water outlet for tap water to flow in / out, and a concentrated water inlet and a concentrated water outlet for concentrated water to flow in / out;

[0010] A first chamber, which is formed inside the valve body, and the tap water inlet and the tap water outlet are communicated through the first chamber;

[0011] A second chamber, which is formed inside the valve body and is partitioned from the first chamber, and the concentrated water inlet and the concentrated water outlet are communicated through the second chamber;

[0012] A valve mechanism, which includes a first valve mechanism disposed in the first chamber to provide a certain damping to the tap water during the process of flowing through the first chamber and flowing out from the tap water outlet, and a second valve mechanism disposed in the second chamber to provide a certain damping to the concentrated water during the process of flowing through the second chamber and flowing out from the concentrated water outlet.

[0013] Preferably,

[0014] The first valve mechanism includes a first valve core corresponding to the tap water inlet and a first spring for making the first valve core have a tendency to block the tap water inlet;

[0015] The second valve mechanism includes a second valve core corresponding to the concentrated water outlet and a second spring for making the second valve core have a tendency to block the concentrated water outlet.

[0016] Preferably, the tap water inlet is formed at the port of the first end of the valve body, the first valve core is disposed at the tap water inlet, and the first spring is used to push the first valve core towards the tap water inlet; wherein:

[0017] The axial end of the first valve core faces the tap water inlet.

[0018] Preferably, the first valve mechanism further includes a first damping component, the first damping component includes a plurality of first water diversion grilles arranged circumferentially, and the first valve core is defined by a guiding hole surrounded by the plurality of first water diversion grilles; wherein:

[0019] The first damping component is used to buffer the tap water entering through the tap water inlet.

[0020] Preferably, a partition portion is disposed in the first chamber, the partition portion divides the first chamber into a first sub-chamber close to the tap water inlet and a second sub-chamber close to the second chamber, and the first valve mechanism is located in the first sub-chamber; wherein:

[0021] A controlled port is formed on the partition portion, and the tap water enters the first sub-chamber through the tap water inlet and flows through the controlled port into the second sub-chamber.

[0022] Preferably, the valve mechanism further includes a third valve core, which is disposed in the second sub-chamber and faces the controlled port; wherein:

[0023] The third valve core is connected to the second valve core by a connecting component to form a linkage, so that when the second valve core increases the opening degree of the concentrated water outlet, the third valve core reduces the opening degree of the controlled port.

[0024] Preferably, a guiding chamber is formed in the second chamber, and the second valve core is disposed in the guiding chamber; wherein:

[0025] The concentrated water outlet penetrates radially into the guiding chamber, and the outer peripheral surface of the second valve core is used to control the opening degree of the concentrated water outlet.

[0026] Preferably, the valve mechanism further includes a second damping component, which is disposed in the second sub-chamber and close to the controlled port; the second damping component includes a plurality of second water diversion grilles arranged circumferentially, and the third valve core is defined by a guiding hole surrounded by the plurality of second water diversion grilles; wherein:

[0027] The second damping component buffers the tap water flowing through the controlled port and entering the second sub-chamber.

[0028] Preferably, a valve sleeve is installed in the second chamber, and the guiding chamber is formed in the valve sleeve.

[0029] Preferably, a radial hole is formed on the sleeve wall of the valve sleeve, and the radial hole corresponds to and penetrates the concentrated water outlet.

[0030] Preferably, an annular groove is formed on the outer peripheral surface of the valve sleeve, and the axial position of the annular groove corresponds to that of the radial hole.

[0031] Preferably, the concentrated water inlet forms the port of the second end of the valve body.

[0032] Preferably, the tap water outlet penetrates radially through the second sub-chamber.

[0033] Preferably, the valve device of the water purification system further includes a water mixing component, and a water mixing chamber is formed inside the water mixing component; wherein:

[0034] Both the tap water outlet and the concentrated water outlet are communicated with the water mixing chamber so that the tap water flowing out from the tap water outlet and the concentrated water flowing out from the concentrated water outlet are mixed in the water mixing chamber.

[0035] Preferably, the water mixing component has a first water inlet communicated with the tap water outlet, a second water inlet communicated with the concentrated water outlet, and a water mixing outlet;

[0036] The mixing water chamber is a columnar chamber, and the first water inlet and the second water inlet both extend tangentially to the mixing water chamber.

[0037] Preferably, the inner ports of the first water inlet and the second water inlet face each other circumferentially.

[0038] Preferably, the inner ports of the first water inlet and the second water inlet face the same direction circumferentially.

[0039] Preferably, the mixing water outlet is formed in the middle of the mixing water chamber.

[0040] Preferably, the connecting member is a connecting rod.

[0041] The present invention also discloses a water purification system, which includes a water purification component and also includes the above valve device.

[0042] Compared with the prior art, the beneficial effects of the valve device and the water purification system of the water purification system disclosed by the present invention are as follows:

[0043] Tap water and concentrated water will obtain a certain degree of buffering after passing through the valve mechanism. This buffering effect reduces the impact when the tap water flowing out of the tap water outlet is mixed with the concentrated water flowing out of the concentrated water outlet. Since the tap water and the concentrated water are mixed only after passing through the valve mechanism, the reaction force formed by the reduced impact is also difficult to be transmitted to the tap water pipe, the concentrated water pipe and the pump due to the obstruction of the valve core, which is beneficial to protecting the water pipes, especially beneficial to protecting the internal components of the pump.

[0044] It should be understood that the foregoing general description and the following detailed description are both exemplary and explanatory, and are not used to limit the present invention.

[0045] The overview of various implementations or examples of the technologies described in the present invention is not a full disclosure of the entire scope or all features of the disclosed technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The same reference numerals with alphabetical suffixes or different alphabetical suffixes may represent different instances of similar components. The drawings generally illustrate various embodiments by way of example rather than limitation, and are used together with the description of the specification and the claims to illustrate the embodiments of the invention. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the device or method.

[0047] Figure 1Schematic internal structure diagram of the valve device of the water purification system provided by the embodiments of the present invention.

[0048] Figure 2 is Figure 1 view C of

[0049] Figure 3 is Figure 1 sectional view taken along line D-D of

[0050] Reference numerals:

[0051] 10 - valve body; 11 - tap water inlet; 111 - tap water inlet end; 12 - tap water outlet; 121 - tap water outlet pipe; 13 - concentrated water inlet; 131 - concentrated water inlet end; 14 - concentrated water outlet; 141 - concentrated water outlet pipe; 15 - partition part; 151 - controlled port; 21 - first chamber; 211 - first sub-chamber; 212 - second sub-chamber; 22 - second chamber; 31 - first valve mechanism; 311 - first valve core; 312 - first spring; 32 - second valve mechanism; 321 - second valve core; 322 - second spring; 33 - third valve core; 34 - connecting rod; 41 - first damping component; 411 - water distribution grille; 42 - second damping component; 421 - water distribution grille; 50 - valve sleeve; 51 - guiding chamber; 52 - radial hole; 53 - annular groove; 60 - water mixing component; 61 - first water inlet; 611 - inner port; 62 - second water inlet; 621 - inner port; 63 - water mixing outlet; 64 - water mixing chamber. Detailed implementation manners

[0052] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0053] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the ordinary meanings as understood by those of ordinary skill in the art to which the present invention pertains. The terms "first", "second" and similar words used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Words such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0054] To keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted in the present invention.

[0055] Embodiments of the present invention disclose a valve device and a water purification system including the valve device. The water purification system further includes a membrane filtration component for preparing drinking water. The membrane filtration component is used to separate the water passing through it into drinking water and concentrated water. The drinking water is for direct consumption by users, and the concentrated water flows out of the membrane filtration component. A part of the outflowing concentrated water is directly discarded, and another part is powered by a pump device and mixed with tap water and then re-enters the membrane filtration component for reuse. And the valve device provided by the present invention is used to be connected into the water purification system.

[0056] As Figure 1 shown, the valve device includes a valve body 10, a first chamber 21, a second chamber 22, a first valve mechanism 31 and a second valve mechanism 32.

[0057] The valve body 10 is formed with a tap water inlet 11, a tap water outlet 12, a concentrated water inlet 13 and a concentrated water outlet 14. The tap water inlet 11 is used to connect to a tap water pipe, and the concentrated water inlet 13 is connected to a concentrated water pipe led out by a pump.

[0058] The first chamber 21 and the second chamber 22 are both formed inside the valve body 10, and the first chamber 21 and the second chamber 22 are separated from each other. The tap water inlet 11 and the tap water outlet 12 are both communicated with the first chamber 21, so that the tap water supplied by the tap water pipe enters the first chamber 21 through the tap water inlet 11 and then flows out from the tap water outlet 12; the concentrated water inlet 13 and the concentrated water outlet 14 are both communicated with the second chamber 22, so that the concentrated water powered by the pump and used for reuse flows into the second chamber 22 through the concentrated water inlet 13 and then flows out from the concentrated water outlet 14. The tap water flowing out from the tap water outlet 12 and the concentrated water flowing out from the concentrated water outlet 14 are mixed and supplied into the membrane filtration component to participate in the preparation of drinking water.

[0059] The first valve mechanism 31 includes a first valve core 311 and a first spring 312; the first valve core 311 is arranged in the first chamber 21, and the first valve core 311 is used to define the flow cross-section of the tap water flowing through the first chamber 21, while the first spring 312 is used to push against the first valve core 311 in the direction of reducing the flow cross-section. In this way, the tap water needs to overcome the first spring 312 after passing through the first chamber 21, which causes a pressure drop when the tap water passes through the first valve core 311. Let's call it the differential pressure resistance. This differential pressure resistance will give the tap water a certain buffering effect.

[0060] The second valve mechanism 32 includes a second valve core 321 and a second spring 322; the second valve core 321 is arranged in the second chamber 22, and the second valve core 321 is used to define the flow cross-section of the concentrated water flowing through the second chamber 22, while the second spring 322 is used to push against the second valve core 321 in the direction of reducing the flow cross-section. In this way, the concentrated water needs to overcome the second spring 322 after passing through the second chamber 22, which causes a pressure drop when the tap water passes through the second valve core 321. Let's also call it the differential pressure resistance. This differential pressure resistance will also give the concentrated water a certain buffering effect.

[0061] Based on the above, the tap water and the concentrated water will obtain a certain degree of buffering after passing through the first valve mechanism 31 and the second valve mechanism 32 respectively. This buffering effect reduces the impact when the tap water flowing out from the tap water outlet and the concentrated water flowing out from the concentrated water outlet 14 are mixed. Since the tap water and the concentrated water are mixed only after passing through the valve mechanisms, the reaction force formed by the reduced impact is also difficult to be transmitted to the tap water pipe, the concentrated water pipe and the pump due to the obstruction of the valve core, which is beneficial to protecting the water pipes, especially the internal components of the pump.

[0062] In some preferred embodiments, the valve body 10 is arranged in a columnar structure, and the two chambers are also arranged as columnar chambers consistent with the valve body 10. A tap water inlet end 111 is installed at the first end of the valve body 10 corresponding to the first chamber 21. The tap water inlet end 111 forms the above-mentioned tap water inlet 11 communicating with the first chamber 21. The first valve core 311 is arranged at the tap water inlet 11, and the first spring 312 pushes against the first valve core 311 in the direction of the tap water inlet 11. In this way, tap water overcomes the first spring 312 during the process of flowing through the tap water inlet 11 and enters the first chamber 21. A pressure drop is generated after entering the first chamber 21, thereby obtaining buffering; the tap water outlet 12 is opened along the radial direction of the valve body 10 and penetrates the chamber wall of the first chamber 21. A concentrated water inlet end 131 is installed at the second end of the valve body 10 corresponding to the second chamber 22. The concentrated water inlet end 131 forms the above-mentioned concentrated water inlet 13 communicating with the second chamber 22. The concentrated water outlet 14 is opened along the radial direction of the valve body 10 and penetrates the second chamber 22; the second spring 322 is used to push against the second valve core 321 in the direction of the concentrated water inlet 13, and the second valve core 321 controls the opening degree of the concentrated water inlet 13 through its outer peripheral surface. In this way, the concentrated water powered by the pump enters the second chamber 22 through the concentrated water inlet 13. The concentrated water presses the second valve core 321 and flows out from the concentrated water outlet 14. A pressure drop is generated after the concentrated water flows out, thereby enabling the concentrated water to obtain buffering during the outflow process.

[0063] In some more preferred embodiments, a valve sleeve 50 is embedded in the second chamber 22. A guiding chamber 51 with relatively high precision is machined inside the valve sleeve 50, and the second valve core 321 is placed in the guiding chamber 51; a radial hole 52 is opened in the area of the guiding chamber 51 corresponding to the concentrated water outlet 14, and an annular groove 53 corresponding to the axial position of the radial hole 52 is opened on the outer periphery of the guiding chamber 51, which enables the second valve core 321 to obtain a pressure drop after the concentrated water flows out by controlling the opening degree of the radial hole 52. The advantage of setting the valve sleeve 50 is to avoid machining a chamber wall with relatively high precision that cooperates with the second valve core 321 inside the valve body 10.

[0064] In some more preferred embodiments, as Figure 1 and Figure 3 shown, a first damping component 41 is provided at the tap water inlet 11. The first damping component 41 includes a plurality of water diversion gratings 411 arranged circumferentially. The plurality of water diversion gratings 411 enclose a guiding hole, and the first valve core 311 is limited in the guiding hole to prevent the first valve core 311 from radially moving. In this way, after the tap water is buffered by the first valve core 311, the tap water flows through the gaps between the water diversion gratings 411. At this time, the water diversion gratings 411 generate frictional resistance to the tap water, and the frictional resistance consumes a part of the kinetic energy of the tap water, thereby further buffering the tap water.

[0065] In some more preferred embodiments, a partition portion 15 is formed in the first chamber 21. The partition portion 15 divides the first chamber 21 into a first sub-chamber 211 near the tap water inlet 11 and a second sub-chamber 212 near the second chamber 22. The tap water outlet 12 communicates with the second sub-chamber 212; the first valve core 311 and the first spring 312 are arranged in the first sub-chamber 211; a controlled port 151 is formed in the middle of the partition portion 15; a third valve core 33 is arranged in the second sub-chamber 212. The third valve core 33 is adjacent to the second valve core 321 by means of a connecting rod 34, so that the third valve core 33 and the second valve core 321 form a linkage. Thus: The tap water passing through the first valve core 311 and the first damping member 41 enters the second sub-chamber 212 through the controlled port 151, and will be further buffered by the third valve core 33 when flowing through the controlled port 151.

[0066] Based on the above, since the third valve core 33 and the second valve core 321 form a linkage, when the second valve core 321 is pressed by the concentrated water and moves towards the third valve core 33, increasing the opening degree of the concentrated water outlet 14, the third valve core 33 synchronously moves towards the controlled port 151, reducing the opening degree of the controlled port 151. Thus, the tap water is controlled by the concentrated water, and the concentrated water can be utilized more fully; moreover, the sum flow rate of the tap water and the concentrated water participating in the preparation of drinking water can be kept roughly stable.

[0067] In some more preferred embodiments, a second damping member 42 is arranged near the controlled port 151 in the second sub-chamber 212. The second damping member 42 includes a plurality of water distribution grilles 411 arranged circumferentially. The plurality of water distribution grilles 421 also enclose a guiding hole. The third valve core 33 is limited in the guiding hole to prevent the third valve core 33 from radially moving. Thus, after the tap water flowing from the first sub-chamber 211 to the second sub-chamber 212 is buffered by the third valve core 33, the tap water flows through the gaps between the water distribution grilles 421. At this time, the water distribution grilles 421 also generate frictional resistance to the tap water, and this frictional resistance further consumes a part of the kinetic energy of the tap water, thereby further buffering the tap water.

[0068] In a preferred embodiment of the present invention, as Figure 2 and in combination with Figure 1 shown, a water mixing member 60 is additionally provided on one side in the radial direction of the valve body 10. The inside of the water mixing member 60 is formed into a columnar water mixing chamber 64. A first water inlet 61, a second water inlet 62 and a water mixing outlet 63 are also provided on the water mixing member 60.

[0069] The first water inlet 61 and the second water inlet 62 both extend tangentially to the mixing chamber 64; the outer end of the tap water outlet 12 of the valve body 10 is connected with a tap water outlet pipe 121, and this tap water outlet pipe 121 is connected to the first water inlet 61, so that the tap water flowing out from the tap water outlet 12 enters the mixing chamber 64 via the tap water outlet pipe 121 and the first water inlet 61. Moreover, due to the tangential extension of the first water inlet 61, the tap water entering the mixing chamber 64 rotates along the chamber wall; the outer end of the concentrated water outlet 14 of the valve body 10 is connected with a concentrated water outlet pipe 141, and this concentrated water outlet pipe 141 is connected to the second water inlet 62, so that the concentrated water flowing out from the concentrated water outlet 14 enters the mixing chamber 64 via the concentrated water outlet pipe 141 and the second water inlet 62. Moreover, due to the tangential extension of the second water inlet 62, the concentrated water entering the mixing chamber 64 rotates along the chamber wall for mixing with the tap water that also rotates, and the mixed water flows in from the mixing water outlet 63 and then enters the filter membrane component to participate in the preparation of drinking water. Preferably, the mixing water outlet 63 communicates with the middle part of the mixing chamber 64.

[0070] The inner port 611 of the first water inlet 61 and the inner port 621 of the second water inlet 62 have two orientations:

[0071] The first orientation:

[0072] The inner port 611 of the first water inlet 61 and the inner port 621 of the second water inlet are circumferentially oriented opposite to each other. In this way, the rotational flow direction of the tap water is opposite to the rotational flow direction of the concentrated water, so that the two are mixed by relative contact.

[0073] The second orientation:

[0074] The inner port 611 of the first water inlet 61 and the inner port 621 of the second water inlet 62 are circumferentially oriented the same. In this way, the rotational flow direction of the tap water is the same as the rotational flow direction of the concentrated water, which makes the mixing time of the two in the mixing chamber 64 longer, thereby improving the mixing effect.

[0075] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., solutions where various embodiments intersect), adaptations or changes. The elements in the claims will be broadly interpreted based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and the examples are only to be considered as examples, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0076] The foregoing description is intended to be illustrative and not restrictive. For example, the above examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the above detailed description, various features may be grouped together to simplify the present invention. This should not be construed as an intention that any non-claimed disclosed feature is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all of the features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, where each claim stands on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the present invention should be determined with reference to the appended claims and the full scope of equivalents to which those claims are entitled.

[0077] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be regarded as falling within the protection scope of the present invention.

Claims

1. A valve device for a water purification system, characterized in that, it includes: a valve body, on which a tap water inlet and a tap water outlet for tap water to flow in / out, and a concentrated water inlet and a concentrated water outlet for concentrated water to flow in / out are formed; a first chamber, which is formed inside the valve body, and the tap water inlet and the tap water outlet are communicated through the first chamber; a second chamber, which is formed inside the valve body and is partitioned from the first chamber, and the concentrated water inlet and the concentrated water outlet are communicated through the second chamber; a valve mechanism, which includes a first valve mechanism arranged in the first chamber to make the tap water receive a certain damping during the process of flowing through the first chamber and flowing out from the tap water outlet, and a second valve mechanism arranged in the second chamber to make the concentrated water receive a certain damping during the process of flowing through the second chamber and flowing out from the concentrated water outlet; the first valve mechanism includes a first valve core corresponding to the tap water inlet and a first spring for making the first valve core have a tendency to block the tap water inlet; the second valve mechanism includes a second valve core corresponding to the concentrated water outlet and a second spring for making the second valve core have a tendency to block the concentrated water outlet; the tap water inlet is formed at the port of the first end of the valve body, the first valve core is arranged at the tap water inlet, and the first spring is used to push the first valve core towards the tap water inlet direction; wherein: the axial end of the first valve core faces the tap water inlet; a partition part is arranged in the first chamber, the partition part divides the first chamber into a first sub-chamber close to the tap water inlet and a second sub-chamber close to the second chamber, and the first valve mechanism is located in the first sub-chamber; wherein: a controlled port is opened on the partition part, and tap water enters the first sub-chamber through the tap water inlet and flows through the controlled port into the second sub-chamber.

2. The valve device for a water purification system according to claim 1, characterized in that, the first valve mechanism further includes a first damping component, the first damping component includes a plurality of first water distribution grilles arranged circumferentially, and the first valve core is defined by a guiding hole surrounded by the plurality of first water distribution grilles; wherein: the first damping component is used for buffering the tap water entering through the tap water inlet.

3. The valve device for a water purification system according to claim 1, characterized in that, the valve mechanism further includes a third valve core, the third valve core is arranged in the second sub-chamber and faces the controlled port; wherein: the third valve core is connected with the second valve core through a connecting component to form a linkage, so that when the second valve core increases the opening degree of the concentrated water outlet, the third valve core reduces the opening degree of the controlled port.

4. The valve device for a water purification system according to claim 1, characterized in that, a guiding cavity is formed in the second chamber, and the second valve core is arranged in the guiding cavity; wherein: The concentrated water outlet diameter penetrates through to the guiding cavity, and the outer peripheral surface of the second valve core is used to control the opening degree of the concentrated water outlet.

5. The valve device of the water purification system according to claim 3, wherein, the valve mechanism further includes a second damping component, and the second damping component is arranged in the second sub-chamber and close to the controlled port; the second damping component includes a plurality of second water distribution grilles arranged circumferentially, and the third valve core is defined by a guiding hole surrounded by the plurality of second water distribution grilles; wherein: The second damping component buffers the tap water flowing through the controlled port and entering the second sub-chamber.

6. The valve device of the water purification system according to claim 4, wherein, a valve sleeve is installed in the second chamber, and the guiding cavity is formed inside the valve sleeve.

7. The valve device of the water purification system according to claim 6, wherein, a radial hole is formed on the sleeve wall of the valve sleeve, and the radial hole corresponds to and penetrates through the concentrated water outlet.

8. The valve device of the water purification system according to claim 7, wherein, an annular groove is formed on the outer peripheral surface of the valve sleeve, and the axial position of the annular groove corresponds to that of the radial hole.

9. The valve device of the water purification system according to claim 1, wherein, the concentrated water inlet forms the port of the second end of the valve body.

10. The valve device of the water purification system according to claim 1, wherein, the tap water outlet diameter penetrates through the second sub-chamber radially.

11. The valve device of the water purification system according to claim 1, wherein, the valve device of the water purification system further includes a water mixing component, and a water mixing cavity is formed inside the water mixing component; wherein: Both the tap water outlet and the concentrated water outlet are communicated with the water mixing cavity so that the tap water flowing out from the tap water outlet and the concentrated water flowing out from the concentrated water outlet are mixed in the water mixing cavity.

12. The valve device of the water purification system according to claim 11, wherein, the water mixing component has a first water inlet communicated with the tap water outlet, a second water inlet communicated with the concentrated water outlet and a water mixing outlet; wherein: The water mixing cavity is a columnar cavity, and both the first water inlet and the second water inlet extend to the water mixing cavity along the tangential direction.

13. The valve device of the water purification system according to claim 12, wherein, the inner ports of the first water inlet and the second water inlet face each other circumferentially.

14. The valve device of the water purification system according to claim 12, wherein, the inner ports of the first water inlet and the second water inlet face the same direction circumferentially.

15. The valve device of the water purification system according to claim 12, wherein, the water mixing outlet is formed in the middle of the water mixing cavity.

16. The valve device of the water purification system according to claim 3, wherein, the connecting component is a connecting rod.

17. A water purification system includes a water purification component, wherein, it further includes the valve device of the water purification system according to any one of claims 1 to 16.

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