CN214880657U - Large-flux composite filter element - Google Patents

Abstract

A large-flux 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-mounted filter module, a rear-mounted filter module and a fine filter module are arranged in the accommodating cavity from the filter element cover; a central conduit is arranged at the center of the front-mounted filter module, the rear-mounted filter module and the fine filter 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, and waste water generated by the fine filtering module flows out from the waste water outlet after passing through the central catheter. 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, and space utilization is high, and more filter materials can be packed into in finite space, improve the processing water yield.

Description

Large-flux composite filter element

Technical Field

The utility model relates to a filter core for crossing the water, especially a big flux composite filter core that the module is strained to the preliminary filtration module, essence and the post-positioned module complex of filtering 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 with two filter elements, namely, a PP cotton filter element, a preposed activated carbon filter element and a postposition activated carbon filter element are made into a large-flux composite filter element and then are connected with an RO membrane filter element in parallel, source water is filtered by the PP cotton filter element and the preposed activated carbon filter element and then is filtered by the RO membrane filter element, and the water filtered by the RO membrane filter element is returned to the postposition activated carbon filter element in the large-flux composite filter element for use after being treated. 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, 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 a big flux composite filter element that the processing water yield is big to the society.

The technical scheme of the utility model is that: the large-flux 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 the opening end of the filter element shell to form an accommodating cavity; a central conduit is arranged at the center of the post-filtration module and the fine filtration module; the filter element is covered and is equipped with raw water import, prefiltration delivery port, waste water outlet, water purification 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 leading filtration 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 the secondary filter module filters gets into rearmounted filtration module and filters and obtain the water purification, the water purification flows from the water purification export, and flows from the waste water export behind the central catheter at the waste water that the secondary filter module produced.

As right the utility model discloses an it is right to be regarded as the improvement, leading filtration module includes leading upper end cover and leading upper cover be equipped with the PP material filter layer and the leading active carbon filter layer of establishing with the heart cover between leading upper end cover and the leading upper end cover be equipped with leading sleeve on the leading upper end cover, leading telescopic lower extreme with leading upper cover is connected.

As an improvement of the utility model, the PP material filter layer is a rod-shaped or folding cylinder-shaped made of PP material.

As an improvement of the utility model, the front activated carbon filter layer is an activated carbon rod.

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

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

As an improvement of the present invention, the fine filtration module comprises a filtration membrane formed by winding, a pure water header pipe is arranged in the center of the filtration membrane, a plurality of pure water collecting holes are arranged on the pure water header pipe, a first shaft collar is arranged at the upper end of the pure water header pipe, and a first sealing ring for sealing connection with the inner wall of the pure water header pipe is arranged on the outer wall of the first shaft collar; a second shaft ring is arranged at the lower end of the pure water collecting pipe, and a second sealing ring is arranged on the inner wall of the second shaft ring; and a filtering membrane bottom cover is arranged on the bottom surface of the filtering membrane, and a wastewater inlet communicated with the central conduit is formed in the filtering membrane bottom cover.

As an improvement to the utility model, the filtration membrane is an RO reverse osmosis membrane or a nanofiltration membrane.

As right the utility model discloses an it is right to be the improvement, rearmounted filter module includes rearmounted upper end cover, back bottom end cover be equipped with rearmounted activated carbon filter layer between rearmounted upper end cover and the back bottom end cover, be equipped with rearmounted carbon-point inner chamber in the central authorities of rearmounted activated carbon filter layer.

As an improvement of the utility model, the post-positioned active carbon filter layer is an active carbon rod made of coconut shells.

The utility model adopts the structure comprising a front filtering module, a fine filtering module, a rear filtering module, 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 a holding cavity, the front filtering module, the rear filtering module and the fine filtering module are arranged in the holding cavity from the filter element cover, and the rear filtering module is sleeved in the front filtering module; the center that rear-mounted filtration module and essence were strained the 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 of every filter core independently filters, each other does not influence, and the filtering process also can be orderly control, and space utilization is high, and more filter materials can be packed into to finite space, improves the processing water yield.

Drawings

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

Fig. 2 is a schematic sectional structure view of the cartridge cover of fig. 1.

FIG. 3 is a schematic diagram of the primary filter module plus the post-filter module of FIG. 1.

Fig. 4 is a schematic structural diagram of the fine 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 a large-flux composite filter element, which includes a front filter module 1, a fine filter module 2, a rear filter module 3, a filter element cover 4 and a filter element housing 5, wherein the filter element cover 4 is disposed on an open end 51 of the filter element housing 5 to form an accommodating cavity 52, the front filter module 1, the rear filter module 3 and the fine filter module 2 are disposed in the accommodating cavity 52 from the filter element cover 4, and the rear filter module 3 is sleeved in the front filter module 1; a central conduit 6 is arranged at the centers of the post-filter module 3 and the fine filter module 2; be equipped with raw water inlet 41, preliminary filtration delivery port 42, waste water outlet 44, pure water export 43 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 2 filtration of fine filtration module gets into 3 filtration of rearmounted filtration module and obtains the pure water, the pure water flows out from pure water export 43, and flows out from waste water outlet 44 behind central pipe 6 at the waste water that module 2 produced of fine filtration. A third shaft ring 46 is arranged on the filter element cover 4, and a third sealing ring 461 is arranged on the inner wall of the third shaft ring 46. As can be seen from fig. 1, raw water (tap water in this embodiment) enters a raw water passage 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, and is filtered by the PP material filter layer 13 and the pre-activated carbon filter layer 14 in sequence, flows out from the direction of the primary filter water arrow 421, passes through a solenoid valve and a booster pump (not shown), flows into the fine filter module 2 from the primary filter water return port 45, as shown in the direction of the arrow 451 of the initial water filtration in fig. 1, the pure water obtained after filtration by the fine filtration module 2 enters the post-filtration module 3 through the pure water collection pipe 22 along the direction of the arrow 20 of the pure water, and then is filtered by the post-filtration module 3 to obtain the purified water which flows out from the purified water outlet 43 along the arrow 30 of the purified water, the waste water produced in the fine filter module 2 flows along the waste water arrow 441 through the central line 6 and then out of the waste water outlet 44.

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, and the lower end of the front sleeve 15 is connected with the front cover 12.

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 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, and a rear carbon rod inner cavity 34 is disposed in the center of the rear activated carbon filter layer 33.

Preferably, the post-activated carbon filter layer 33 is an activated carbon rod made of coconut shell.

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.

Preferably, the fine filtration module 2 includes a filtration membrane 21 formed by winding, a pure water collecting pipe 22 is arranged at the center of the filtration membrane 21, a plurality of pure water collecting holes 221 are arranged on the pure water collecting pipe 22, a first collar 23 is arranged 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 arranged on the outer wall of the first collar 23; a second collar 312 is arranged at the lower end of the pure water collecting pipe 22, and a second sealing ring 313 is arranged on the inner wall of the second collar 312; a filtering membrane bottom cover 24 is arranged on the bottom surface of the filtering membrane 21, and a waste water inlet 241 communicated with the central conduit 6 is arranged on the filtering membrane bottom cover 24.

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.

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 (10)

1. The utility model provides a big flux composite filter core, includes leading filtration module (1), essence filtration 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 at an opening end (51) of the filter element shell (5) to form an accommodating cavity (52), the accommodating cavity (52) is internally provided with the front filter module (1), the rear filter module (3) and the fine filter module (2) from the filter element cover (4), and the rear filter module (3) is sleeved in the front filter module (1); a central conduit (6) is arranged at the centers of the post-filter module (3) and the fine filter module (2); be equipped with raw water import (41), just strain delivery port (42), waste water outlet (44), water purification export (43) 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 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 water purification, the water purification flows from water purification export (43), and the waste water that produces at essence filtration module (2) flows from waste water export (44) behind central catheter (6).

2. The high flux composite filter element of 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 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 of leading sleeve (15) with leading upper cover (12) are connected.

3. The high flux composite filter element of 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. A high flux composite filter element according to claim 2 or 3 wherein: the pre-activated carbon filter layer (14) is an activated carbon rod.

5. The high flux composite filter element of claim 4, wherein: the activated carbon rod is made of shell carbon, wood carbon or carbon fiber.

6. The high flux composite filter element of claim 5, wherein: the shell carbon is made of coconut shells.

7. The high flux composite filter element of claim 1, wherein: the fine filtration module (2) comprises a filtration membrane (21) formed by winding, 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) 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); a second collar (312) is arranged at the lower end of the pure water collecting pipe (22), and a second sealing ring 313 is arranged on the inner wall of the second collar (312); and a filtering membrane bottom cover (24) is arranged on the bottom surface of the filtering membrane (21), and a wastewater inlet (241) communicated with the central conduit (6) is arranged on the filtering membrane bottom cover (24).

8. The high flux composite filter element of claim 7, wherein: the filtering membrane (21) is an RO reverse osmosis membrane or a nanofiltration membrane.

9. The high flux composite filter element of 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), and a rear carbon rod inner cavity (34) is arranged in the center of the rear activated carbon filter layer (33).

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

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