CN218653897U - Pure water self-cleaning filter element and water purifying device - Google Patents

Abstract

The utility model belongs to the technical field of the water purification, a self-cleaning filter core of pure water and purifier are disclosed, this self-cleaning filter core of pure water install in purifier. This self-cleaning filter core of pure water includes the casing, filter piece and center tube, casing one side has the water inlet, the opposite side has first delivery port, second delivery port and exhalant water outlet, it sets up in the chamber that holds of casing to filter the piece, filter the both ends of piece respectively with the water inlet, exhalant water outlet intercommunication, the outer wall of filtering the piece forms water storage space with the inner wall of casing, water storage space and second delivery port intercommunication, the center tube sets up inside filtering the piece, the center tube is used for storing and filters filterable pure water, and center tube and first delivery port, water storage space all communicates. When this kind of setting makes the purifier restart after the standby, the pure water in the water storage space can play the dilution effect to the water of the high TDS value in the center tube, can make the water that flows to the user side satisfy the filtration requirement, and can avoid causing the waste of water resource.

Description

Pure water self-cleaning filter element and water purifying device

Technical Field

The utility model relates to a water purification technology field especially relates to self-cleaning filter core of pure water and purifier.

Background

The water purifier is a common household water purifying device, and the core technology of the water purifier is a filtering membrane in a filter element device, and the water purifier mainly comprises an ultrafiltration membrane, a reverse osmosis membrane and a nanofiltration membrane. Wherein, the water purifier that uses reverse osmosis membrane water purification is when shutting down, the TDS value that stops the water TDS value of former water side than the TDS value that stops the water of pure water side is high, reverse osmosis membrane is in dense water for a long time and soaks, lead to the salt branch of the water of the former water side of reverse osmosis membrane to the infiltration of pure water side, the TDS value of the water of pure water side will be close to the TDS value of the water of the former water side of reverse osmosis membrane, after the water purifier restart system water, the TDS value of first cup of water will surpass the standard value by a wide margin, quality of water can not reach the filtration requirement. The existing reverse osmosis water purifier can generally use the pure water stored in the water purifier to wash the raw water side of the reverse osmosis membrane, and the water after the membrane is washed is discharged, so that the water salt concentration of the raw water side of the reverse osmosis membrane is reduced, the permeation of the salt content of the raw water side of the reverse osmosis membrane is reduced, the pure water is needed to be used for washing the reverse osmosis membrane in the process, the waste water discharge capacity is overproof, and the water resource waste is also caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-cleaning filter core of pure water and purifier, this self-cleaning filter core of pure water can effectively reduce purifier's the TDS value of a cup of water, avoids owing to use the pure water to wash the water waste that reverse osmosis membrane leads to.

To achieve the purpose, the utility model adopts the following technical proposal:

the self-cleaning filter core of pure water, the self-cleaning filter core of pure water includes:

the device comprises a shell, a water inlet, a first water outlet, a second water outlet and a waste water outlet, wherein an accommodating cavity is formed in the shell, one side of the shell is provided with the water inlet, and the other side of the shell is provided with the first water outlet, the second water outlet and the waste water outlet;

the filtering piece is arranged in the accommodating cavity, one end of the filtering piece is communicated with the water inlet, the other end of the filtering piece is communicated with the wastewater outlet, the outer wall of the filtering piece and the inner wall of the shell form a water storage space, and the water storage space is communicated with the second water outlet;

the central tube is arranged inside the filtering piece and used for storing the pure water filtered by the filtering piece, and the central tube is communicated with the first water outlet and the water storage space.

Preferably, the shell comprises a shell body, an upper cover and a lower cover, the upper cover and the lower cover are respectively arranged on two sides of the shell body, the water inlet is arranged on the lower cover, and the first water outlet, the second water outlet and the wastewater outlet are all arranged on the upper cover.

Preferably, the housing body and the lower cover are in threaded connection.

Preferably, the self-cleaning filter core of pure water still includes the shunt, and the shunt sets up between holding chamber and lower cover, and the shunt includes first passageway and second passageway, and first passageway is used for communicateing the water inlet and filters the piece, and the second passageway is used for communicateing center tube and water storage space.

Preferably, the pure water self-cleaning filter element further comprises a filter element cover, the filter element cover is connected to the shell, and the filter element cover is used for being connected with an external pipeline.

Preferably, a first flow channel, a second flow channel and a third flow channel are arranged in the filter element cover, the first flow channel is communicated with the first water outlet, the second flow channel is communicated with the second water outlet, and the third flow channel is communicated with the waste water outlet.

Preferably, the pure water self-cleaning filter element further comprises a mixer, and the mixer is communicated with the outlet of the first flow passage and the outlet of the second flow passage.

Preferably, the mixer is communicated with the outlet of the first flow passage through a bisection pipe, and the mixer is communicated with the outlet of the second flow passage through a bisection pipe.

Preferably, a throttle valve is provided on the secondary pipe between the mixer and the outlet of the first flow passage.

The utility model discloses still adopt following technical scheme:

purifier, purifier include the self-cleaning filter core of foretell pure water.

The utility model has the advantages that:

the utility model discloses a pure water self-cleaning filter element, which comprises a shell, a filter element and a central tube, wherein the shell is internally provided with a containing cavity, one side of the shell is provided with a water inlet, and the other side of the shell is provided with a first water outlet, a second water outlet and a waste water outlet; the filtering piece is arranged in the accommodating cavity, one end of the filtering piece is communicated with the water inlet, the other end of the filtering piece is communicated with the wastewater outlet, the outer wall of the filtering piece and the inner wall of the shell form a water storage space, and the water storage space is communicated with the second water outlet; the center tube sets up in filtering inside the piece, and the center tube is used for storing and filters a filterable pure water, and center tube and first delivery port, water storage space all communicate. This kind of self-cleaning filter core of pure water can store the pure water to the water storage space at system water during operation, when the standby, the pure water in the water storage space can not receive the influence of the dense water of reverse osmosis membrane opposite side, when purifier restarts, the pure water that receives the influence in the pure water space and the center tube flows out together, can have certain dilution to the water in the center tube, and then reduces the TDS value of the water that flows out, ensure that first cup water can not exceed standard, and can not cause the waste of water resource.

The utility model discloses still disclose a purifier, this purifier includes foretell pure water self-cleaning filter core, can make purifier when the standby restarts, the water that flows to the user side accords with water purification filtration standard, and can not cause the waste of water resource.

Drawings

FIG. 1 is a schematic view of a part of the structure of a pure water self-cleaning filter element according to an embodiment of the present invention;

FIG. 2 is a sectional view of a pure water self-cleaning filter element according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a schematic structural view of the flow divider of the present invention.

In the figure:

1. a housing; 11. an upper cover; 111. a first water outlet; 112. a second water outlet; 113. a waste water outlet; 12. a lower cover; 121. a water inlet; 13. a housing body;

2. a filter member; 21. a water storage space;

3. a central tube;

4. a flow divider; 41. a first channel; 42. a second channel;

5. a filter element cover;

6. a mixer; 61. dividing the tube into two parts; 62. and (5) dividing the tube into three parts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The water purifier is the water purification unit who uses always, and when shutting down, the salt content of the former water side of reverse osmosis membrane can be to the pure water side infiltration, leads to the TDS value of the water that has purified to exceed standard, and when the machine restart again, the TDS value of first cup of water will surpass the standard value by a wide margin, and quality of water can not reach the filtration requirement. Among the prior art, the pure water that adopts to save in the water purifier usually washes reverse osmosis membrane's former water side to the water discharge after will washing the membrane, divide the concentration with the water salt that reduces reverse osmosis membrane former water side, and then reduce the infiltration of reverse osmosis membrane former water side salinity, this process need use the pure water to wash reverse osmosis membrane, not only can lead to the waste water discharge capacity to exceed standard, still can lead to the water waste.

Accordingly, the present embodiment provides a self-cleaning filter element for pure water.

As shown in fig. 1 to 4, the pure water self-cleaning filter element provided by the embodiment comprises a housing 1, a filter element 2 and a central tube 3, wherein the housing 1 is internally provided with a containing cavity, one side of the housing 1 is provided with a water inlet 121, and the other side of the housing 1 is provided with a first water outlet 111, a second water outlet 112 and a waste water outlet 113; the filtering element 2 is arranged in the accommodating cavity, one end of the filtering element 2 is communicated with the water inlet 121, the other end of the filtering element 2 is communicated with the wastewater outlet 113, the outer wall of the filtering element 2 and the inner wall of the shell 1 form a water storage space 21, and the water storage space 21 is communicated with the second water outlet 112; the central tube 3 is arranged inside the filter element 2, the central tube 3 is used for storing pure water filtered by the filter element 2, and the central tube 3 is communicated with the first water outlet 111 and the water storage space 21. Specifically, in this embodiment, hold the chamber and be used for spacing filtering piece 2, avoid filtering piece 2 the offset that appears, have the connecting hole on the 3 lateral walls of center tube for connect and filter piece 2. In the process of water production, raw water enters the filter element 2 through the water inlet 121, the filter element 2 filters the raw water to generate wastewater and pure water, the wastewater flows out through the wastewater outlet 113, the pure water enters the central tube 3 through the connecting hole, one part of the pure water entering the central tube 3 flows out to a user end through the first water outlet 111, and the other part of the pure water is stored in the water storage space 21; during the standby, the influence of pure water and waste water in the center tube 3 can receive raw water and waste water in the filter core leads to the TDS value to rise, pure water in the water storage space 21 is because keeping apart with filtering piece 2, still keep the state of pure water, when purifier restarts, the pure water that receives the influence in the center tube 3 flows from first delivery port 111, pure water in the water storage space 21 flows from second delivery port 112, flow to the user side together, pure water in the water storage space 21 can dilute the high TDS value pure water in the center tube 3, make the TDS value of the water that flows to the user side reduce to normal range, make quality of water reach the filtration requirement, and avoided because the waste of the water resource that the pure water washing reverse osmosis membrane leads to. The filter element 2 in this embodiment is a reverse osmosis membrane cartridge.

Further, the housing 1 includes a housing body 13, an upper cover 11 and a lower cover 12, the upper cover 11 and the lower cover 12 are respectively disposed on two sides of the housing body 13, the water inlet 121 is disposed on the lower cover 12, and the first water outlet 111, the second water outlet 112 and the waste water outlet 113 are disposed on the upper cover 11. Specifically, in this embodiment, upper cover 11 and housing body 13 integrated into one piece, and second delivery port 112, first delivery port 111 sets gradually with waste water outlet 113, lower cover 12 in this embodiment is connected for dismantling with housing body 13, can be convenient for carry out the maintenance or the change of filtering piece 2, lower cover 12 middle part has an inside arch, and the diameter that has several coaxial settings in the arch reduces the round hole in proper order along directional casing 1 inside direction, form this water inlet 121, this kind of setting can make into water convenient, and the arch has the recess of a coaxial setting all around.

Further, the housing body 13 is screwed with the lower cover 12. Particularly, the threaded connection is adopted, so that the disassembly and the assembly are convenient, and the subsequent maintenance and the replacement are convenient.

Further, the pure water self-cleaning filter element further comprises a flow divider 4, the flow divider 4 is arranged between the accommodating cavity and the lower cover 12, the flow divider 4 comprises a first channel 41 and a second channel 42, the first channel 41 is used for communicating the water inlet 121 with the filter element 2, and the second channel 42 is used for communicating the central tube 3 with the water storage space 21. Specifically, in this embodiment, the flow divider 4 is adopted to divide the passage from the raw water to the filter element and from the pure water to the water storage space 21, so as to avoid the problem that the water before filtering and the water after filtering are mixed with each other, and the flow divider 4 has a simple structure. Specifically, the inlet of the first channel 41 of the flow divider 4 in this embodiment is communicated with the water inlet 121, the cross section of the inlet of the first channel 41 is circular, the circular ring is located in the groove of the lower cover 12, and a sealing ring is arranged in front of the inlet of the first channel 41 and the side wall of the groove, so that raw water can be prevented from entering the water storage space 21. The cross-section of the entry of second passageway 42 also is ring shape, and connects in the bottom of center tube 3, also sets up the sealing washer between the pipe wall of center tube 3 and the entry of second passageway 42, can avoid the pure water that passes through the processing to spill over the water purification efficiency reduction that leads to water inlet 121 department.

Further, the pure water self-cleaning filter element also comprises a filter element cover 5, the filter element cover 5 is connected to the shell 1, and the filter element cover 5 is used for connecting an external pipeline. Specifically, set up filter core lid 5 and can be convenient for connect external pipeline, and can play the effect of first delivery port 111, second delivery port 112 of protection and waste water outlet 113, avoid the exterior to cause it and collide with.

Further, a first flow channel, a second flow channel and a third flow channel are arranged inside the filter element cover 5, the first flow channel is communicated with the first water outlet 111, the second flow channel is communicated with the second water outlet 112, and the third flow channel is communicated with the waste water outlet 113. Specifically, the arrangement enables the external pipeline to be directly connected with the filter element cover 5, so that mutual mistake and complication among pipelines are avoided, and wrong connection is avoided. Preferably, the outlets of the first flow passage, the second flow passage and the third flow passage can be arranged and distinguished, or labeled, or different pipe diameters are adopted, so that misconnection is avoided.

Further, the pure water self-cleaning filter element also comprises a mixer 6, and the mixer 6 is communicated with the outlet of the first flow passage and the outlet of the second flow passage. Specifically, in this embodiment, the purpose of adding the mixer 6 is to fully mix the water in the first water outlet 111 and the water in the second water outlet 112 before entering the user end, and on the other hand, considering that if the pure water stored in the storage space 21 is not enough to reduce the affected pure water in the central tube 3 to the TDS value meeting the water quality requirement, the water in the storage space 21 and the central tube 3 may be stored in the mixer 6 first, and meanwhile, the pure water produced by the water purifier can also enter the mixer 6, so as to further reduce the TDS value of the water flowing out to the user end, and ensure that the water quality requirement is met. On the other hand, the water in the mixer 6 is not affected and can be used as it is.

Further, the mixer 6 communicates with the outlet of the first flow passage through a bisecting pipe 61, and the mixer 6 communicates with the outlet of the second flow passage through a trisecting pipe 62. In particular, this arrangement enables the amount of pure water flowing out of the water storage space 21 to be greater than the amount of affected pure water flowing out of the central tube 3, which further ensures that the water flowing out to the user end has a lower TDS value.

Further, a throttle valve is provided in the branch pipe 61 between the mixer 6 and the outlet of the first flow path. Specifically, set up the volume that the pure water that receives the influence that the choke valve can control the outflow of center tube 3, can ensure that the pure water that water storage space 21 flows out carries out sufficient dilution to it, ensures that the water that flows out to the user reaches the filtration requirement.

This embodiment still provides a purifier, and this purifier includes the self-cleaning filter core of foretell pure water, and this purifier can provide the water that accords with the low TDS value of filtering requirement, promotes user's comfort level, and can not cause the waste of water resource.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A pure water self-cleaning filter element, which is characterized in that the pure water self-cleaning filter element comprises:

the device comprises a shell (1), wherein a containing cavity is formed in the shell (1), a water inlet (121) is formed in one side of the shell (1), and a first water outlet (111), a second water outlet (112) and a waste water outlet (113) are formed in the other side of the shell (1);

the filtering piece (2) is arranged in the accommodating cavity, one end of the filtering piece (2) is communicated with the water inlet (121), the other end of the filtering piece (2) is communicated with the wastewater outlet (113), a water storage space (21) is formed by the outer wall of the filtering piece (2) and the inner wall of the shell (1), and the water storage space (21) is communicated with the first water outlet (111);

center tube (3), center tube (3) set up in it is inside to filter piece (2), center tube (3) are used for storing it filters the filterable pure water of piece (2), just center tube (3) with second delivery port (112) water storage space (21) all communicate.

2. The pure water self-cleaning filter element according to claim 1, wherein the housing (1) comprises a housing body (13), an upper cover (11) and a lower cover (12), the upper cover (11) and the lower cover (12) are respectively arranged at two sides of the housing body (13), the water inlet (121) is arranged at the lower cover (12), and the first water outlet (111), the second water outlet (112) and the waste water outlet (113) are arranged at the upper cover (11).

3. The pure water self-cleaning filter element according to claim 2, characterized in that the shell body (13) and the lower cover (12) are in threaded connection.

4. The pure water self-cleaning cartridge according to claim 2, further comprising a flow diverter (4), the flow diverter (4) being disposed between the receiving cavity and the lower cover (12), the flow diverter (4) including a first passage (41) and a second passage (42), the first passage (41) being for communicating the water inlet (121) with the filter element (2), the second passage (42) being for communicating the central tube (3) with the water storage space (21).

5. The pure water self-cleaning filter element according to any one of the claims 1 to 4, further comprising a filter element cover (5), wherein the filter element cover (5) is connected to the shell (1), and the filter element cover (5) is used for connecting external pipelines.

6. The pure water self-cleaning filter element according to the claim 5, characterized in that the filter element cover (5) is internally provided with a first flow passage, a second flow passage and a third flow passage, wherein the first flow passage is communicated with the first water outlet (111), the second flow passage is communicated with the second water outlet (112), and the third flow passage is communicated with the waste water outlet (113).

7. The pure water self-cleaning filter cartridge according to claim 6, further comprising a mixer (6), wherein the mixer (6) is communicated with both the outlet of the first flow passage and the outlet of the second flow passage.

8. The pure water self-cleaning filter element according to claim 7, wherein the mixer (6) is communicated with the outlet of the first flow passage through a bisecting pipe (61), and the mixer (6) is communicated with the outlet of the second flow passage through a trisecting pipe (62).

9. The pure water self-cleaning cartridge as claimed in claim 8, wherein a throttle valve is provided on the bifurcated pipe (61) between the mixer (6) and the outlet of the first flow passage.

10. A water purification apparatus, characterized in that it comprises a pure water self-cleaning cartridge according to any one of claims 1 to 9.

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