CN214457189U

CN214457189U - Filter core and water purification system

Info

Publication number: CN214457189U
Application number: CN202022807511.8U
Authority: CN
Inventors: 陶林兵; 陈娟
Original assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Current assignee: Foshan Micro Midea Filter Manufacturing Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-10-22
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a filter core reaches includes the water purification system of filter core. The filter element comprises a filter element body, a waterway switching valve and an automatic flushing valve, wherein the filter element body is provided with a water inlet, a water outlet and a sewage outlet; the waterway switching valve is provided with a first flow passage and a second flow passage, the waterway switching valve is provided with a filtering position and a flushing position, when the waterway switching valve is positioned at the filtering position, the first flow passage is communicated with an external water inlet and the water inlet of the filter element body, and the second flow passage is communicated with an external water outlet and the water outlet of the filter element body; when the waterway switching valve is positioned at a flushing position, the first flow channel is communicated with an external water inlet and the water inlet of the filter element body, and the second flow channel blocks the external water outlet and/or the water outlet of the filter element body; the automatic flushing valve is communicated with the sewage draining outlet and is opened and closed at regular time. Therefore, the utility model discloses an automatic washing of filter core to the problem of filter core accumulation impurity when using among the solution prior art.

Description

Filter core and water purification system

Technical Field

The utility model relates to a water purification technology field especially relates to a filter core and water purification system.

Background

In the prior art, the filter element, especially the filter element with the ultrafiltration filter body, accumulates impurities in water in the membrane filaments of the ultrafiltration filter body in the water purification process, thereby affecting the water purification effect and the service life of the filter element. The problem that impurities are easily accumulated inside the filter element in the prior art is solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a filter core and application the water purification system of filter core aims at solving the inside problem of easily accumulating impurity of filter core among the prior art.

In order to solve the problem, the utility model provides a filter core. Specifically, the filter element comprises a filter element body, a waterway switching valve and an automatic flushing valve, wherein the filter element body is provided with a water inlet, a water outlet and a sewage outlet; the waterway switching valve is provided with a first flow passage and a second flow passage, the waterway switching valve is provided with a filtering position and a flushing position, when the waterway switching valve is positioned at the filtering position, the first flow passage is communicated with an external water inlet and the water inlet of the filter element body, and the second flow passage is communicated with an external water outlet and the water outlet of the filter element body; when the waterway switching valve is positioned at a flushing position, the first flow channel is communicated with an external water inlet and the water inlet of the filter element body, and the second flow channel blocks the external water outlet and/or the water outlet of the filter element body; the automatic flushing valve is communicated with the sewage draining outlet and is opened and closed at regular time.

In an embodiment, the waterway switching valve further includes a third flow channel, the waterway switching valve further has a water stop position, when the waterway switching valve is located at the water stop position, the first flow channel blocks the outside water inlet and/or the water inlet of the filter element body, the second flow channel blocks the outside water outlet and/or the water outlet of the filter element body, and the third flow channel communicates the outside water inlet and the outside water outlet.

In one embodiment, the filter element body comprises a shell and a filter body assembly, the filter body assembly is arranged inside the shell, the filter body assembly comprises an upper end cover and a filter body, the water inlet and the water outlet of the filter element body are arranged on the upper end cover, the shell is provided with a through hole for exposing the upper end cover, and the edge of the upper end cover is hermetically connected with the shell.

In an embodiment, the filter body assembly further comprises a lower end cover, a central pipe is formed inside the filter body, the upper end of the central pipe is communicated with the water outlet of the filter element body, the lower end cover is connected with the lower end of the filter body, a plugging portion used for plugging the lower end of the central pipe is arranged on the lower end cover, and besides the plugging portion, the lower end cover is further provided with at least one through hole communicated with the sewage draining outlet.

In an embodiment, the filter body comprises a first filter body and a second filter body, the central tube comprises a first central tube arranged in the first filter body and a second central tube arranged in the second filter body, the lower end of the first central tube is communicated with the upper end of the second central tube, the upper end of the first central tube is connected with the upper end cover, the lower end of the second central tube is connected with the lower end cover, and the side wall of the second central tube is provided with a through hole.

In an embodiment, the filter assembly further includes a cylindrical connecting member and a sleeve, the first filter and the second filter are connected through the cylindrical connecting member, the upper end cover is covered on an opening of the cylindrical connecting member, the first filter is disposed inside the cylindrical connecting member, a communication hole for communicating the first central tube with the second central tube is disposed at the bottom of the cylindrical connecting member, a through hole for passing water flow is disposed at the bottom of the cylindrical connecting member except the communication hole, the upper end and the lower end of the sleeve are respectively connected with the cylindrical connecting member and the lower end cover, and the second filter is disposed inside the sleeve.

In one embodiment, the upper end cover, the lower end cover and the bottom of the cylindrical connecting piece are all provided with communication holes, and the rest parts except the communication holes are all hollow structures.

In one embodiment, the first filter is a non-woven fabric filter or a sponge filter, and the second filter is an ultrafiltration filter.

In an embodiment, the housing includes a housing body and a housing cover, the housing cover is disposed at the opening of the housing body, the filter assembly is disposed inside the housing body, the housing cover and the housing body are detachably connected, and the housing cover is provided with a through hole for exposing the upper end cover.

The utility model also provides a water purification system, water purification system includes the filter core.

Specifically, the utility model provides a filter core and water purification system. Specifically, the filter element comprises a filter element body, a waterway switching valve and an automatic flushing valve, wherein the filter element body is provided with a water inlet, a water outlet and a sewage outlet; the waterway switching valve is provided with a first flow passage and a second flow passage, the waterway switching valve is provided with a filtering position and a flushing position, when the waterway switching valve is positioned at the filtering position, the first flow passage is communicated with an external water inlet and the water inlet of the filter element body, and the second flow passage is communicated with an external water outlet and the water outlet of the filter element body; when the waterway switching valve is positioned at a flushing position, the first flow channel is communicated with an external water inlet and the water inlet of the filter element body, and the second flow channel blocks the external water outlet and/or the water outlet of the filter element body; the automatic flushing valve is communicated with the sewage draining outlet and is opened and closed at regular time. Therefore, the utility model discloses an automatic washing of filter core to solve among the prior art filter core and accumulate the problem of impurity in the use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of a filter element of the present invention;

FIG. 2 is a flow diagram of the waterway switching valve of the filter cartridge of FIG. 1 in a filtering position;

FIG. 3 is a flow path view of the waterway diverter valve of the cartridge of FIG. 1 in a flushing position;

FIG. 4 is a flow path diagram of the waterway switching valve of the filter cartridge in FIG. 1 in a water-stop position;

fig. 5 is an exploded view of the cartridge of fig. 1.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 3, a filter cartridge 100 is provided. The filter element 100 comprises a filter element body 10, a waterway switching valve 20 and an automatic flushing valve 30, wherein the filter element body 10 is provided with a water inlet, a water outlet and a sewage outlet; the waterway switching valve 20 is provided with a first flow passage and a second flow passage, the waterway switching valve 20 has a filtering position and a flushing position, when the waterway switching valve 20 is in the filtering position, the first flow passage is communicated with an external water inlet and the water inlet of the filter element body 10, and the second flow passage is communicated with an external water outlet and the water outlet of the filter element body 10; when the waterway switching valve 20 is in the flushing position, the first flow channel is communicated with an external water inlet and a water inlet of the filter element body 10, and the second flow channel blocks the external water outlet and/or a water outlet of the filter element body 10; the automatic flushing valve 30 is communicated with the sewage draining outlet, and the automatic flushing valve 30 is opened and closed at regular time. Specifically, when the filter element 100 is in normal operation, the automatic flushing valve 30 is opened at intervals to flush the filter element 100. At this time, the water path switching valve 20 is in the filtering position. After water at the external water inlet flows into the water inlet of the filter element body 10 from the first flow channel, when the automatic flushing valve 30 is in a closed state, the water flows out from the water outlet of the filter element body 10 after being filtered by the inside of the filter element body 10 under the action of external water pressure. When the automatic flushing valve 30 is in a closed state, water flowing in from the external water inlet flushes the filter element body 10, and then flows out from the opened automatic flushing valve 30 through the sewage draining outlet. However, some water may still remain in the filter cartridge body 10 or flow out of the water outlet of the filter cartridge body 10. The automatic flush valve 30 has insufficient flushing effect. Therefore, in order to sufficiently flush the filter element body 10, the waterway switching valve 20 is adjusted to the flushing position, and at this time, since the second flow passage is closed, when the automatic flushing valve 30 is opened, all the water flowing from the external water inlet flows into the automatic flushing valve 30 through the sewage outlet, so that the filter element body 10 is sufficiently flushed. As such, the filter cartridge 100 has multiple modes of operation. The first is normal use of the cartridge 100 and conventional flushing of the cartridge body 10. The waterway switching valve 20 is at the filtering position. Secondly, when the impurities accumulated on the filter element body 10 are too much, the filter element needs to be fully washed, and the waterway switching valve 20 is located at a washing position.

Referring to fig. 4, in an embodiment, the waterway switching valve 20 further includes a third flow channel, the waterway switching valve 20 further has a water stopping position, when the waterway switching valve 20 is located at the water stopping position, the first flow channel blocks the outside water inlet and/or the water inlet of the filter element body 10, the second flow channel blocks the outside water outlet and/or the water outlet of the filter element body 10, and the third flow channel communicates the outside water inlet and the outside water outlet. When the waterway switching valve 20 is located at the water-stopping position, the water flow does not flow into the filter element body 10, so that the filter element body 10 or the automatic flushing valve 30 can be replaced without affecting the whole waterway, and the leakage of the water flow does not occur.

Referring to fig. 2 to 4, in an embodiment, the filter element body 10 includes a housing 11 and a filter element assembly, the filter element assembly is disposed inside the housing 11, the filter element assembly includes an upper end cover 14 and a filter element 12, a water inlet and a water outlet of the filter element body 10 are disposed on the upper end cover 14, the housing 11 is provided with a through hole for exposing the upper end cover 14, and an edge of the upper end cover 14 is hermetically connected to the housing 11. To prevent leakage, seals are provided at each pipe connection and at the connection of the edge of the upper end cap 14 and the inner wall of the housing 11. Optionally, the seal is a sealing ring 18. By the arrangement, a water inlet and a water outlet do not need to be additionally arranged on the shell 11, the water path structure is simplified, and the manufacturing difficulty and the manufacturing cost of the filter element 100 are reduced. Furthermore, the waterway switching valve 20 can be directly connected into the waterway inside the filter element body 10 through the upper end cover 14, so that the difficulty in mounting the waterway switching valve 20 on the filter element body 10 is reduced. Further, a sealing ring 18 is also disposed at a connection portion between the waterway switching valve 20 and the housing 11 to prevent water from leaking to the outside.

Referring to fig. 2 to 4, in an embodiment, the filter assembly further includes a lower end cap 15, a central tube 13 is formed inside the filter 12, an upper end of the central tube 13 is communicated with the water outlet of the filter element body 10, the lower end cap 15 is connected to a lower end of the filter 12, the lower end cap 15 is provided with a plugging portion for plugging a lower end of the central tube 13, and besides the plugging portion, the lower end cap 15 is further provided with at least one through hole communicated with the sewage drain. Thus, when the waterway switching valve 20 is in the flushing mode, water flows in through the water inlet of the filter element body 10, flows out from the through hole of the lower end cover 15 after the filter body 12 is flushed, and flows out from the sewage outlet. Further, in order to ensure the sewage discharge effect, a gap is arranged between the lower end cover 15 and the bottom end of the shell 11, and the gap is communicated with the through hole of the lower end cover 15 and the sewage discharge port.

Referring to fig. 2 to 5, in an embodiment, the filter body 12 includes a first filter body 12a and a second filter body 12b, the central tube includes a first central tube 13a disposed in the first filter body 12a and a second central tube 13b disposed in the second filter body 12b, a lower end of the first central tube 13a communicates with an upper end of the second central tube 13b, an upper end of the first central tube 13a is connected with the upper end cap, a lower end of the second central tube 13b is connected with the lower end cap 15, and a side wall of the second central tube 13b is provided with a through hole. Optionally, the utility model provides a filter core 100 with automatic flushing function, and the filter media cost that often needs to set up the filter core adoption of automatic flushing function is higher. Therefore, in the case of poor water quality, the life of the filter medium which plays a main purification role is ensured. Specifically, the utility model provides a filter core 100 with composite construction follows the rivers process that external water inlet flowed in first filter body 12 a's preliminary treatment back, flow in again in the second filter body 12b carries out the purification of water. It is worth noting that when the waterway switching valve 20 is located at the filtering position, it is finally required that the water flow is purified by the first filtering body 12a and the second filtering body 12b in sequence, in order to ensure that the water flow treated by the first filtering body 12a does not directly flow out from the water outlet of the filter element body 10, the side wall of the first central tube 13a is not provided with a through hole, and the side wall of the second central tube 13b is provided with a through hole. After being filtered by the first filter 12a and the second filter 12b, the purified water flows into the second central tube 13b from the side wall of the second central tube 13b, and then flows into an external water outlet through the first central tube 13a in sequence.

Referring to fig. 5, in an embodiment, the filter assembly further includes a cylindrical connector 16 and a sleeve 17, the first filter 12a and the second filter 12b are connected by the cylindrical connector 16, the upper end cap 14 covers an opening of the cylindrical connector 16, the first filter 12a is disposed inside the cylindrical connector 16, a communication hole for communicating the first center tube 13a and the second center tube 13b is disposed at the bottom of the cylindrical connector 16, a through hole for passing water is disposed at the bottom of the cylindrical connector 16 except for the communication hole, the upper end and the lower end of the sleeve 17 are respectively connected with the cylindrical connector 16 and the lower end cap 15, and the second filter 12b is disposed inside the sleeve 17. Specifically, the cylindrical connecting member 16 and the sleeve 17 divide the interior of the housing 11 into two relatively independent filtering spaces, thereby facilitating the installation of the first filtering body 12a and the second filtering body 12 b. Furthermore, the sleeve 17 and the side wall of the cylindrical connecting piece 16 also ensure that, in the case of external pressure filtration, the water flow does not flow out from the side of the filter body 12, but down or into the central tube. I.e. the arrangement of the sleeve 17 and the cylindrical connection piece 16 further ensures the filtering effect.

Referring to fig. 5, in an embodiment, communication holes are formed at the bottoms of the upper end cover 14, the lower end cover 15, and the cylindrical connecting member 16, and the remaining parts except the communication holes are all hollow structures. For convenience of processing, the upper end cover 14 and the lower end cover 15 are similar structures which are convenient for processing. The hollow structure can allow more water to flow into the filter element body 10, thereby increasing the filtering speed of the filter element 100.

In one embodiment, the first filter 12a is a nonwoven fabric filter or a sponge filter, and the second filter 12b is an ultrafiltration filter. Wherein the first filtering body 12a mainly plays a role of pre-treating water in advance, and the second filtering body 12b mainly plays a role of purifying water. Thus, depending on the different functions performed by the different filter bodies 12. Different kinds of filter materials are adopted as the filter bodies. Specifically, the sponge filter body or the non-woven fabric filter body mainly plays a role in filtering large-particle impurities in water. The Ultrafiltration (UF) technology is a membrane separation technology between microfiltration and nanofiltration, has an average pore size of 3-100 nm, and has functions of purifying, separating, concentrating a solution, and the like. The interception mechanism mainly comprises the sieving effect and the electrostatic effect of the membrane, the filtering medium is an ultrafiltration membrane, and only low molecular weight solute and water can pass through the ultrafiltration membrane under the driving of pressure difference at two sides, so that the purposes of purification, separation and concentration are achieved. That is, the ultrafiltration filter 12 plays the most important role in the filter element 100 of the present invention, affecting the final purification effect. The cost of the ultrafiltration filter material is high, and the membrane filaments of the ultrafiltration filter material accumulate impurities in transaction, so that the service life and the filtering effect are influenced. When the automatic flushing valve 30 is opened, the water flow mainly flushes the membrane filaments of the ultrafiltration filter material to flush the impurities accumulated on the membrane filaments, thereby prolonging the service life of the filter element 100.

Referring to fig. 5, in an embodiment, the housing 11 includes a housing body 11b and a housing cover 11a, the housing cover 11a covers an opening of the housing body 11b, the filter assembly is disposed inside the housing body 11b, the housing cover 11a is detachably connected to the housing body 11b, and the housing cover 11a is provided with a through hole for exposing the upper end cover 14. In this manner, the filter body 12 inside the filter cartridge 100 can be easily replaced. Or when other parts in the shell 11 are damaged, the maintenance is convenient.

The utility model also provides a water purification system, water purification system includes filter core 100. Further, the filter element is arranged in the water purification system. The water purification system also comprises a pressurizing device, and the pressurizing device is used for realizing external pressure type filtration of the filter element. The water purification system also comprises a waste water receiving piece communicated with the sewage draining outlet.

The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A filter cartridge, comprising:

the filter element body is provided with a water inlet, a water outlet and a sewage outlet;

the water path switching valve is provided with a first flow path and a second flow path, the water path switching valve is provided with a filtering position and a flushing position, when the water path switching valve is at the filtering position, the first flow path is communicated with an external water inlet and the water inlet of the filter element body, and the second flow path is communicated with an external water outlet and the water outlet of the filter element body; when the waterway switching valve is positioned at a flushing position, the first flow channel is communicated with an external water inlet and the water inlet of the filter element body, and the second flow channel blocks the external water outlet and/or the water outlet of the filter element body;

and the automatic flushing valve is communicated with the sewage draining outlet and is opened and closed at regular time.

2. The filter element of claim 1, wherein the waterway switching valve further comprises a third flow passage, the waterway switching valve further comprises a water stop position, when the waterway switching valve is in the water stop position, the first flow passage blocks the outside water inlet and/or the water inlet of the filter element body, the second flow passage blocks the outside water outlet and/or the water outlet of the filter element body, and the third flow passage communicates the outside water inlet and the outside water outlet.

3. The filter cartridge of claim 1, wherein the filter cartridge body comprises a housing and a filter assembly, the filter assembly is disposed inside the housing, the filter assembly comprises an upper end cap and a filter, the water inlet and the water outlet of the filter cartridge body are disposed on the upper end cap, the housing is provided with a through hole for exposing the upper end cap, and the edge of the upper end cap is hermetically connected with the housing.

4. The filter element as claimed in claim 3, wherein the filter body assembly further comprises a lower end cap, a central tube is formed in the filter body, the upper end of the central tube is communicated with the water outlet of the filter element body, the lower end cap is connected with the lower end of the filter body, the lower end cap is provided with a plugging part for plugging the lower end of the central tube, and the lower end cap is provided with at least one through hole communicated with the sewage draining outlet besides the plugging part.

5. The filter cartridge of claim 4, wherein the filter body comprises a first filter body and a second filter body, the center tube comprises a first center tube disposed in the first filter body and a second center tube disposed in the second filter body, the lower end of the first center tube communicates with the upper end of the second center tube, the upper end of the first center tube is connected with the upper end cap, the lower end of the second center tube is connected with the lower end cap, and the side wall of the second center tube is provided with through holes.

6. The filter element of claim 5, wherein the filter assembly further comprises a cylindrical connecting piece and a sleeve, the first filter body and the second filter body are connected through the cylindrical connecting piece, the upper end cover is arranged at the opening of the cylindrical connecting piece in a covering manner, the first filter body is arranged inside the cylindrical connecting piece, a communication hole for communicating the first central pipe and the second central pipe is formed in the bottom of the cylindrical connecting piece, a through hole for allowing water to pass through is formed in the bottom of the cylindrical connecting piece except for the communication hole, the upper end and the lower end of the sleeve are respectively connected with the cylindrical connecting piece and the lower end cover, and the second filter body is arranged inside the sleeve.

7. The filter element as claimed in claim 6, wherein the upper end cover, the lower end cover and the bottom of the cylindrical connecting piece are all provided with communication holes, and the rest parts except the communication holes are hollow structures.

8. The filter element according to claim 5, wherein the first filter is a nonwoven fabric filter or a sponge filter, and the second filter is an ultrafiltration filter.

9. The filter cartridge of claim 3, wherein the housing includes a housing body and a housing cover, the housing cover is disposed at the opening of the housing body, the filter assembly is disposed inside the housing body, the housing cover is detachably connected to the housing body, and the housing cover is provided with a through hole for exposing the upper end cover.

10. A water purification system, characterized in that it comprises a cartridge according to claims 1 to 9.