CN214880651U

CN214880651U - Integrated composite filter element

Info

Publication number: CN214880651U
Application number: CN202121184371.1U
Authority: CN
Inventors: 杨理国
Original assignee: Foshan Hanhua Filter Core Co ltd
Current assignee: Foshan Hanhua Filter Core Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-26
Anticipated expiration: 2031-05-31

Abstract

The integrated composite filter element comprises a filter element cover and a filter element shell, wherein the filter element cover is arranged on the opening end of the filter element shell to form an accommodating cavity, and a front filter module, a fine filter module and a rear filter module are sequentially arranged in the accommodating cavity from the filter element cover; a central conduit is arranged at the centers of the front filtering module, the fine filtering module and the rear filtering module; raw water enters the pre-filtering module from the raw water inlet, primary filter water obtained after filtering by the pre-filtering module flows out from the primary filter water outlet, the primary filter water flows into the fine filtering module from the primary filter water return port, pure water obtained after filtering by the fine filtering module enters the post-filtering module to be filtered to obtain pure water, the pure water flows out from the pure water outlet through the central catheter, and wastewater generated by the fine filtering module flows out from the wastewater outlet. The utility model has the advantages of simple structure, but modular production, the assembly degree of difficulty is low, improve production efficiency, and each module is rationally distributed, and it is simple to filter the water route, and the ability independent filtration of every filter core, each other does not influence, and the filter process also can be orderly control, effectively reduces the risk of crossing water, and space utilization is high, and more filter materials can be packed into in finite space, improve the treatment water yield.

Description

Integrated composite filter element

Technical Field

The utility model relates to a filter core for crossing the water, especially an integral type composite filter core that the module is strained to the module and the post-positioned module complex of filtering by just straining, essence forms.

Background

Most traditional water purifiers generally comprise a PP cotton filter element, a preposed activated carbon filter element, an RO membrane filter element and a postposed activated carbon filter element which are sequentially connected end to end. The water purifier has the advantages of complex pipeline connection, larger overall dimension, inconvenient installation and part replacement, and high risk of water leakage due to multi-joint connection.

In order to improve the water purifier, people invent the water purifier of two filter elements, make the cotton filter core of PP, leading activated carbon filter core and rearmounted activated carbon filter core into integral type composite filter core, and parallelly connected with the RO membrane filter core again, source water filters the back through the cotton filter core of PP, leading activated carbon filter core, filters through the RO membrane filter core again, and the water after the RO membrane filter core filters returns the rearmounted activated carbon filter core in the integral type composite filter core again and handles the back, supplies the use. This arrangement changes four individual cartridges into a two cartridge arrangement, greatly reducing the complexity of the piping installation and the size of the purifier. However, such a water purifier has room for improvement in terms of its volume size and piping installation.

As a modification of a water purifier with two filter elements, chinese patent document CN 212222600U discloses a four-in-one composite filter element, which includes a filter element top cover and a housing, wherein the filter element top cover is located right above the housing, and the filter element top cover is inserted into the housing; the top of the filter element top cover is provided with a tap water inlet, a preposed water outlet, a pure water outlet, a wastewater outlet and a magnetic valve backwater inlet, and the tap water inlet, the preposed water outlet, the pure water outlet, the wastewater outlet and the magnetic valve backwater inlet are sequentially arranged at the top of the filter element top cover side by side; a front-mounted filter module and a rear-mounted filter module are arranged in the shell, the front-mounted filter module is positioned right above the rear-mounted filter module, and the front-mounted filter module and the rear-mounted filter module are installed in a clamping mode; the four-in-one composite filter element has the advantages of compact structure, smaller volume and convenient replacement. However, the post-carbon rod of the four-in-one composite filter element is arranged in the middle of the RO membrane filter element, and due to the structural limitation of the composite filter element, the post-carbon rod can only be made thinner, and is easy to break, so that the phenomenon of water cross is caused; and the rear carbon rod is placed in the middle of the RO membrane filter element, so that the area of the RO effective membrane is reduced, and the pure water flux of the RO membrane is influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problem, the utility model provides an integral type composite filter element which is not easy to cross water and has relatively large treated water amount for the society.

The technical scheme of the utility model is that: the integrated composite filter element comprises a front filter module, a fine filter module, a rear filter module, a filter element cover and a filter element shell, wherein the filter element cover is arranged on an opening end of the filter element shell to form an accommodating cavity; a central guide pipe is arranged at the centers of the front filtering module, the fine filtering module and the rear filtering module; the filter element is covered and is equipped with raw water import, prefiltration delivery port, water purification export, waste water export and prefiltration return water mouth, and the raw water gets into leading filtration module from the raw water import, and the prefiltration water that obtains after prefiltration module filters flows from prefiltration delivery port, and prefiltration water flows into the secondary filter module from prefiltration return water mouth again, and the pure water that obtains after filtering by the secondary filter module gets into rearmounted filtration module and filters and obtain the pure water, the pure water flows from the water purification export through central pipe, and the waste water that produces at the secondary filter module flows through waste water export.

As an improvement of the invention, the preposed filtering module comprises a preposed upper end cover and a preposed sleeve cover, a PP material filtering layer and a preposed activated carbon filtering layer which are concentrically sleeved are arranged between the preposed upper end cover and the preposed sleeve cover, a preposed sleeve is arranged on the preposed upper end cover, the lower end of the preposed sleeve is connected with the preposed sleeve cover, and the center of the upper end of the preposed sleeve is provided with a connecting head which is used for being connected with the upper end of the central guide pipe.

As an improvement of the invention, the PP material filter layer is a rod-shaped or folded cylinder-shaped filter layer made of PP material.

As an improvement to the present invention, the pre-activated carbon filter layer is an activated carbon rod.

As an improvement of the invention, the activated carbon rod is made of shell carbon, wood carbon or carbon fiber.

As an improvement of the invention, the shell carbon is made of coconut shells.

As an improvement of the invention, the fine filtration module comprises a wound filtration membrane, a pure water collecting pipe is arranged in the center of the filtration membrane, a plurality of pure water collecting holes are arranged on the pure water collecting pipe, a first shaft collar is arranged at the upper end of the pure water collecting pipe, and a first sealing ring for sealing connection with the inner wall of the pure water collecting pipe is arranged on the outer wall of the first shaft collar.

As an improvement of the invention, the filtering membrane is an RO reverse osmosis membrane or a nanofiltration membrane.

As an improvement of the invention, the rear filter module comprises a rear upper end cover and a rear lower end cover, a rear activated carbon filter layer is arranged between the rear upper end cover and the rear lower end cover, a water purification collecting pipe extends out of the middle part of the rear upper end cover towards the rear lower end cover, a second collar connected with the lower end of the central guide pipe is arranged at the upper end of the water purification collecting pipe, and a second sealing ring is arranged on the inner wall of the second collar; a rear sleeve cover is arranged on the rear upper end cover.

As an improvement of the invention, the post-positioned activated carbon filter layer is an activated carbon rod made of shell carbon, wood carbon or carbon fiber.

The filter element cover is arranged on the opening end of the filter element shell to form a holding cavity, and the front-end filtering module, the fine filtering module and the rear-end filtering module are sequentially arranged in the holding cavity from the filter element cover; the center of leading filtration module, essence filtration module and rearmounted filtration module is equipped with the structure of central pipe, so, the utility model has the advantages of simple structure, but the modular production, the assembly degree of difficulty are low, improve production efficiency, and each module is rationally distributed, and it is simple to filter the water route, and the ability independent filtration of every filter core, each other does not influence, and the control that the filtration process also can be orderly reduces the risk of crossing water effectively, and space utilization is high, and more filter materials can be packed into to the finite space, improve the treatment capacity.

Drawings

Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the primary filter module of fig. 1.

Fig. 3 is a schematic structural diagram of the fine filter module of fig. 1.

Fig. 4 is a schematic structural view of the post-filter module of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, fig. 1 to 4 disclose an integrated composite filter element, which includes a front filter module 1, a fine filter module 2, a rear filter module 3, a filter cover 4 and a filter housing 5, wherein the filter cover 4 is disposed at an open end 51 of the filter housing 5 to form an accommodating cavity 52, the front filter module 1, the fine filter module 2 and the rear filter module 3 are sequentially disposed in the accommodating cavity 52 from the filter cover 4, and the rear filter module 3 is disposed behind the fine filter module 2 independently, so that a rear carbon rod is not broken, and a water leakage problem is not caused; a central conduit 6 is arranged at the centers of the pre-filtering module 1, the fine filtering module 2 and the post-filtering module 3; be equipped with raw water inlet 41, preliminary filtration delivery port 42, pure water export 43, waste water export 44 and preliminary filtration return water mouth 45 on the filter element lid 4, raw water gets into leading filtration module 1 from raw water inlet 41, and the preliminary filtration water that obtains after leading filtration module 1 filters flows out from preliminary filtration delivery port 42, and the preliminary filtration water flows into fine filtration module 2 from preliminary filtration return water mouth 45 again, and the pure water that obtains after fine filtration module 2 filters gets into rearmounted filtration module 3 and filters and obtain the pure water, the pure water flows from pure water export 43 through central pipe 6, and the waste water that produces at fine filtration module 2 flows out through waste water export 44. As can be seen from fig. 1, raw water (in this embodiment, tap water) enters a raw water channel formed between the inner wall of the pre-sleeve 15 and the outer wall of the PP material filter layer 13 from the raw water inlet 41 along a raw water arrow 411, is sequentially filtered by the PP material filter layer 13 and the pre-activated carbon filter layer 14, flows out from the direction indicated by a primary water arrow 421, flows into the fine filter module 2 from the primary water return port 45 through an electromagnetic valve and a booster pump (not shown), as indicated by a primary water arrow 451 in fig. 1, pure water obtained after filtering by the fine filter module 2 enters the post-filter module 3 through the pure water collecting pipe 22 along a pure water arrow 20, enters the central conduit 6 along a pure water arrow 30 after filtering by the post-filter module 3, and wastewater generated by the fine filter module 2 flows out from the wastewater outlet 44 along a wastewater arrow 441.

Preferably, the front filter module 1 comprises a front upper end cover 11 and a front cover 12, a PP material filter layer 13 and a front activated carbon filter layer 14 concentrically sleeved are arranged between the front upper end cover 11 and the front cover 12, a front sleeve 15 is arranged on the front upper end cover 11, a lower end 151 of the front sleeve 15 is connected with the front cover 12, a connector 16 used for being connected with an upper end 61 of the central conduit 6 is arranged in the center of an upper end 152 of the front sleeve 15, and a third sealing ring 161 used for being hermetically connected with the upper end 61 of the central conduit 6 is arranged on the inner wall of the connector 16; a recess 121 is provided in the middle of the front cover 12 to engage with the first collar 23. In this embodiment, the PP filter layer 13 is a rod or a folded cylinder made of PP. The PP material filter layer 13 is mainly used for filtering out larger impurities in the raw water, such as silt and the like. Preferably, the pre-activated carbon filter layer 14 is an activated carbon rod; the activated carbon rod is made of shell carbon, wood carbon or carbon fiber; the shell carbon can be made of coconut shell, and in this embodiment, the pre-activated carbon filter layer 14 is mainly used for filtering off odor such as residual chlorine in raw water.

Preferably, the fine filtration module 2 includes a wound filtration membrane 21, a pure water collecting pipe 22 is disposed in the center of the filtration membrane 21, a plurality of pure water collecting holes 221 are disposed on the pure water collecting pipe 22, a first collar 23 is disposed at the upper end of the pure water collecting pipe 22, and a first sealing ring 231 for sealing connection with the inner wall of the pure water collecting pipe 22 is disposed on the outer wall of the first collar 23. Preferably, the filtering membrane 21 is an RO reverse osmosis membrane or a nanofiltration membrane. The fine filtration module 2 in the embodiment is mainly used for filtering out pesticides and water passes; bacteria, viruses, heavy metal ions, and the like.

Preferably, the rear filter module 3 includes a rear upper end cap 31 and a rear lower end cap 32, a rear activated carbon filter layer 33 is disposed between the rear upper end cap 31 and the rear lower end cap 32, the rear upper end cap 31, the rear lower end cap 32 and the rear activated carbon filter layer 33 are disposed in the rear sleeve 35, a water purification collecting pipe 311 extends from the middle of the rear upper end cap 31 toward the rear lower end cap 32, a second collar 312 connected to the lower end 62 of the central conduit 6 is disposed at the upper end of the water purification collecting pipe 311, and a second sealing ring 313 is disposed on the inner wall of the second collar 312; a rear sleeve cover 34 is provided on the rear upper end cover 31. The post-activated carbon filter layer 33 in this embodiment is mainly an activated carbon rod made of coconut shell for improving the taste of pure water.

All equivalent changes made by the contents of the specification and the drawings of the utility model are included in the scope of the claims of the utility model without departing from the idea of the utility model.

Claims

1. Integral type composite filter, including leading filtration module (1), essence filter module (2) and rearmounted filtration module (3), its characterized in that: the filter element is characterized by further comprising a filter element cover (4) and a filter element shell (5), wherein the filter element cover (4) is arranged on an opening end (51) of the filter element shell (5) to form an accommodating cavity (52), and the prepositive filter module (1), the fine filter module (2) and the postpositive filter module (3) are sequentially arranged in the accommodating cavity (52) from the filter element cover (4); a central conduit (6) is arranged at the centers of the front filtering module (1), the fine filtering module (2) and the rear filtering module (3); be equipped with raw water import (41), just strain delivery port (42), water purification export (43), waste water export (44) and just strain return water mouth (45) on filter element lid (4), raw water gets into leading filtration module (1) from raw water import (41), and the water that obtains after leading filtration module (1) filters flows from just straining delivery port (42), and just strain water return water mouth (45) inflow essence filtration module (2) from just straining again, and the pure water that obtains after filtration module (2) filters gets into rearmounted filtration module (3) and filters and obtain the pure water, the pure water flows from water purification export (43) through central pipe (6), and the waste water that produces at essence filtration module (2) flows through waste water export (44).

2. The one-piece composite filter element according to claim 1, wherein: leading filter module (1) is including leading upper end cover (11) and leading upper cover (12) be equipped with between leading upper end cover (11) and the leading upper cover (12) with concentric PP material filter layer (13) and leading active carbon filter layer (14) of establishing of overlapping be equipped with leading sleeve (15) on leading upper end cover (11), the lower extreme (151) of leading sleeve (15) with leading upper cover (12) are connected, the central authorities of upper end (152) of leading sleeve (15) are equipped with connector (16) that are used for being connected with upper end (61) of central pipe (6).

3. The one-piece composite filter element according to claim 2, wherein: the PP material filter layer (13) is in a rod shape or a folded cylinder shape made of a PP material.

4. The integrated composite filter element according to claim 2 or 3, wherein: the pre-activated carbon filter layer (14) is an activated carbon rod.

5. The one-piece composite filter element according to claim 4, wherein: the activated carbon rod is made of shell carbon, wood carbon or carbon fiber.

6. The one-piece composite filter element according to claim 5, wherein: the shell carbon is made of coconut shells.

7. The one-piece composite filter element according to claim 1, wherein: the fine filtration module (2) comprises a winding filtration membrane (21), a pure water collecting pipe (22) is arranged in the center of the filtration membrane (21), a plurality of pure water collecting holes (221) are formed in the pure water collecting pipe (22), a first shaft collar (23) is arranged at the upper end of the pure water collecting pipe (22), and a first sealing ring (231) which is used for being in sealing connection with the inner wall of the pure water collecting pipe (22) is arranged on the outer wall of the first shaft collar (23).

8. The one-piece composite filter element according to claim 7, wherein: the filtering membrane (21) is an RO reverse osmosis membrane or a nanofiltration membrane.

9. The one-piece composite filter element according to claim 1, wherein: the rear filter module (3) comprises a rear upper end cover (31) and a rear lower end cover (32), a rear activated carbon filter layer (33) is arranged between the rear upper end cover (31) and the rear lower end cover (32), a purified water collecting pipe (311) extends from the middle of the rear upper end cover (31) to the rear lower end cover (32), a second collar (312) connected with the lower end (62) of the central guide pipe (6) is arranged at the upper end of the purified water collecting pipe (311), and a second sealing ring (313) is arranged on the inner wall of the second collar (312); a rear sleeve cover (34) is arranged on the rear upper end cover (31).

10. The one-piece composite filter element according to claim 9, wherein: the post-positioned activated carbon filter layer (33) is an activated carbon rod made of coconut shells.