CN210595539U - Lateral flow type reverse osmosis filtering device - Google Patents

Abstract

The utility model discloses a lateral flow type reverse osmosis filtering device, which comprises a filtering bottle and a filtering cover which are sealed relatively, wherein a filtering core is arranged in a cavity enclosed by the filtering bottle and the filtering cover; the filter cover is provided with a water inlet, a purified water outlet and a concentrated water outlet; the water inlet is communicated with a gap between the filter flask and the filter element, a central tube for circulating purified water is arranged in the middle of the filter element and is communicated with the purified water outlet, and the filtered purified water is discharged through the purified water outlet; the lateral wall top of filter core with strain the lid and seal relatively, the raw water gets into from the lateral wall of filter core, and the water purification after the filtration flows from the center tube, and the top discharge of filter core can be followed to unfiltered dense water, and the tip of filter core communicates in dense water export, outside the discharge filter equipment, for the filter of intaking respectively and going out water from the both ends of filter core, can improve the velocity of water, reduces the dirt and piles up, the life of extension filter core.

Description

Lateral flow type reverse osmosis filtering device

Technical Field

The utility model relates to a water purification unit technical field further relates to a lateral flow formula reverse osmosis filter equipment.

Background

The principle of the reverse osmosis technology is that under the action of osmotic pressure higher than solution, other substances cannot permeate a semipermeable membrane, so that the substances and water are separated; has the advantages of good water quality, low energy consumption, no pollution, simple process, simple and convenient operation, and the like. The reverse osmosis membrane is an artificial semipermeable membrane made by simulating a biological semipermeable membrane and is a core component of a reverse osmosis technology. The reverse osmosis membrane has a very small membrane pore size, and thus can effectively remove dissolved salts, colloids, microorganisms, organic substances, and the like in water.

The existing reverse osmosis membrane element is provided with a central pipe and a reverse osmosis membrane module group wound on the central pipe, raw water enters from one end of the reverse osmosis membrane element and flows out from the other end of the reverse osmosis membrane element, the mode has small circulation and can reduce the flow speed of the raw water or concentrated water; the existing lateral flow reverse osmosis module has slow raw water flow velocity, and dirt is easily accumulated on the reverse osmosis membrane to influence the purification effect of the module.

For those skilled in the art, how to increase the water flow speed in the filter and reduce the accumulation of dirt is a technical problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lateral flow formula reverse osmosis filter equipment, raw water get into the filter core from the lateral wall, flow out the water purification from the center tube, follow the concentrated water of filter core tip outflow, improve water velocity, reduce the dirt rule, concrete scheme is as follows:

a lateral flow reverse osmosis filter device comprises a filter bottle and a filter cover which are sealed relatively, wherein a filter element is arranged in a cavity enclosed by the filter bottle and the filter cover;

the filter cover is provided with a water inlet, a purified water outlet and a concentrated water outlet;

the water inlet is communicated with a gap between the filter flask and the filter element, and a central tube for circulating purified water is arranged in the middle of the filter element;

the lateral wall top of filter core with strain the lid and relatively seal, raw water is followed the lateral wall of filter core gets into, and the water purification after filtering is followed the center tube flows out, and unfiltered dense water can be followed the top of filter core is discharged.

Optionally, a water-proof sealing ring is arranged between the bottom of the side wall of the filter element and the inner wall of the filter bottle;

the central pipe is internally provided with a concentrated water pipe in an inserted mode, and concentrated water discharged from the bottom end of the filter element flows upwards through the concentrated water pipe and is discharged from a concentrated water outlet.

Optionally, the filter flask comprises a filter flask body and a filter flask head, and the filter flask body is connected with the filter flask head by a spin-melting process;

the top end of the filter element is sleeved with a filter element cover, the side wall of the filter element cover is bonded with the filter element by adopting water sealing glue, and the filter element cover surrounds the top ends of the central pipe and the concentrated water pipe;

the filter cover is connected with the filter bottle head by a rotary buckle;

the filter element cover, the filter bottle head and the filter cover form a water inlet channel in an enclosing manner; the filter element cover and the filter cover enclose a pure water channel and a concentrated water channel.

Optionally, the concentrated water pipe is longer than the central pipe, a concentrated water ring seat is respectively sleeved at the top and the bottom of the periphery of the concentrated water pipe, the concentrated water ring seat is cylindrical, a baffle ring is arranged at the periphery of the concentrated water ring seat, and the filter cover and the central pipe are axially pressed against the baffle ring of the concentrated water ring seat above the filter cover;

the bottom end of the central tube is sleeved with a filter element seat, and the filter element seat and the concentrated water ring seat are respectively sealed with the outer wall and the inner wall of the bottom end of the central tube.

Optionally, the concentrated water outlet is inserted into the purified water outlet.

Optionally, the filter element comprises a reverse osmosis membrane, a fresh water diversion net and a concentrated water diversion net which are arranged in a stacked and wound manner;

the reverse osmosis membrane and the fresh water diversion net enclose a fresh water cavity, and waterproof rubber strips are arranged on the upper edge, the lower edge and the outer side edge of the fresh water cavity; the reverse osmosis membrane with dense water diversion net encloses into the dense water chamber, the last border and the lower limb in dense water chamber set up waterproof rubber strip, and go up the border and set up along the lower limb waterproof rubber strip is last to set up the dense water discharge port.

Optionally, the waterproof rubber strip is obliquely arranged in the middle of the concentrated water cavity and guides the concentrated water entering from the outer side edge of the concentrated water cavity.

Optionally, the fresh water diversion net and the concentrated water diversion net are inserted into a gap formed by folding the reverse osmosis membrane.

The utility model provides a lateral flow type reverse osmosis filtering device, which comprises a filtering bottle and a filtering cover which are sealed relatively, wherein a filtering core is arranged in a cavity enclosed by the filtering bottle and the filtering cover; the filter cover is provided with a water inlet, a purified water outlet and a concentrated water outlet; the water inlet is communicated with a gap between the filter flask and the filter element, a central tube for circulating purified water is arranged in the middle of the filter element and is communicated with the purified water outlet, and the filtered purified water is discharged through the purified water outlet; the lateral wall top of filter core with strain the lid and seal relatively, the raw water gets into from the lateral wall of filter core, and the water purification after the filtration flows from the center tube, and the top discharge of filter core can be followed to unfiltered dense water, and the tip of filter core communicates in dense water export, outside the discharge filter equipment, for the filter of intaking respectively and going out water from the both ends of filter core, can improve the velocity of water, reduces the dirt and piles up, the life of extension filter core.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 these drawings without creative efforts.

Fig. 1A is a schematic diagram of an axial structure of a lateral reverse osmosis filtration apparatus according to the present invention;

fig. 1B to fig. 1D are a front view, a right side view and a left side view of a lateral flow type reverse osmosis filtration device provided by the present invention, respectively;

fig. 2 is an exploded view of each component of the lateral flow reverse osmosis filtration device provided by the present invention;

fig. 3A is a cross-sectional view of a lateral flow reverse osmosis filtration device provided by the present invention;

FIG. 3B is a schematic diagram of raw water, purified water and concentrated water flow paths;

FIG. 3C is an enlarged view of a portion A of FIG. 3A;

fig. 3D is a cross-sectional view of the filter cover portion of the lateral flow reverse osmosis filtration device provided by the present invention;

FIG. 4A is a cross-sectional view of the cartridge;

FIG. 4B is a schematic structural view of the fresh water chamber in an expanded state;

FIG. 4C is a schematic structural view of the developed state of the concentrate chamber;

fig. 5 is an assembly schematic view of a reverse osmosis membrane, a fresh water diversion net and a concentrated water diversion net.

The figure includes:

the filter flask comprises a filter flask 1, a filter flask body 11, a filter flask head 12, a concentrated water through hole 121, a filter cover 2, a water inlet 21, a water inlet channel 211, a purified water outlet 22, a purified water channel 221, a concentrated water outlet 23, a concentrated water channel 231, a filter element 3, a reverse osmosis membrane 31, a fresh water diversion net 32, a concentrated water diversion net 33, a waterproof adhesive tape 34, a concentrated water outlet 35, a filter element seat 301, a filter element cover 302, a central tube 4, a waterproof sealing ring 5, a concentrated water tube 6 and a concentrated water ring seat 61.

Detailed Description

The core of the utility model is to provide a lateral flow type reverse osmosis filter, raw water gets into the filter core from the lateral wall, flows out the water purification from the center tube, flows out dense water from the filter core tip, improves the velocity of water flow, reduces the dirt rule.

In order to make those skilled in the art better understand the technical solution of the present invention, the lateral flow reverse osmosis filtering device of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1A, it is a structure diagram of the axial structure of the lateral reverse osmosis filtration device provided by the present invention; fig. 1B to fig. 1D are a front view, a right side view and a left side view of a lateral flow type reverse osmosis filtration device provided by the present invention, respectively; the filter comprises a filter bottle 1 and a filter cover 2 which are assembled in a relatively sealed way, wherein a filter element 3 is arranged in a cavity enclosed by the filter bottle 1 and the filter cover 2; the filter cover 2 is provided with a water inlet 21, a purified water outlet 22 and a concentrated water outlet 23, the water inlet 21 is used for introducing raw water into the filter cover 2, the raw water is filtered by the filter element 3 to generate purified water and concentrated water, the purified water is discharged from the purified water outlet 22, and the concentrated water is discharged from the concentrated water outlet 23.

The water inlet 21 is communicated with a gap between the filter flask 1 and the filter element 3, the filter element 3 is inserted into the filter flask 1, a cylindrical gap is formed between the inner surface of the filter flask 1 and the outer surface of the filter element 3, and raw water entering from the water inlet 21 can enter the gap.

The middle of the filter element 3 is provided with a central tube 4 for circulating purified water, raw water enters from the side surface of the filter element 3 and is filtered by the filter element 3 to generate purified water and concentrated water, and the purified water flows out from the central tube 4.

The top of the side wall of the filter element 3 is sealed relative to the filter cover 2, raw water flowing from the side can only flow in the cylindrical space between the filter element 3 and the filter bottle 1, and the raw water can not directly enter the end part of the filter element 3. Raw water enters from the side wall of the filter element 3, impurities cannot pass through the filter element 3 to form concentrated water after passing through a filtering structure on the inner wall of the filter element 3, pure water can pass through the filter element 3, the pure water leaves the filter element, inlet water arranged on the side wall of a central pipe 4 flows into the central pipe 4, the top end of the central pipe 4 is open, the filtered pure water flows out from the central pipe 4, the central pipe 4 is communicated with a pure water outlet 22 on the filter cover 2, and the pure water flowing out from the central pipe 4 is discharged to the outside from the pure water outlet 22; the unfiltered concentrated water can be discharged from the top end of the filter element 3, the top end of the filter element 3 is communicated with a concentrated water outlet 23 on the filter cover 2, and the concentrated water is discharged from the filter element 3 and then is discharged to the outside from the concentrated water outlet 23.

The lateral flow reverse osmosis filter device of the utility model is provided with a corresponding waterway structure, raw water entering from the filter cover 2 directly enters the side wall of the filter element 3 and enters from the side wall, filtered purified water enters the central tube 4, and unfiltered concentrated water is discharged from the end part of the filter element 3; compared with the traditional filter which respectively feeds water into and discharges water from the two ends of the filter element, the water flow speed can be improved, dirt accumulation is reduced, and the service life of the filter element is prolonged.

On the basis of the scheme, the utility model discloses set up water proof sealing ring 5 between the lateral wall bottom of filter core 3 and filter flask 1's inner wall, water proof sealing ring 5 is ring shape, can contact with filter core 3 and filter flask 1 respectively, and water proof sealing ring 5 is located the position that filter core 3 is close to the lateral wall below, and with the lateral wall of filter core 3 and the bottom of filter core mutual isolation, the bottom that filter core 3 can be followed to unfiltered dense water flows, and dense water flows from the top and the bottom of filter core 3 respectively.

The concentrated water pipe 6 is inserted in the central pipe 4, the central pipe 4 is cylindrical, a channel is formed in a through mode along the axis direction, the pipe diameter of the concentrated water pipe 6 is smaller than that of the central pipe 4, and the concentrated water pipe 6 can be inserted into the channel of the central pipe 4. The concentrated water discharged from the bottom end of the filter element 3 flows upwards through the concentrated water pipe 6, the concentrated water discharged upwards from the concentrated water pipe 3 is combined with the concentrated water directly discharged from the top end of the filter element 3, and the concentrated water is discharged from the concentrated water outlet 23 together.

Fig. 2 is an exploded view of each component of the lateral flow reverse osmosis filtration device provided by the present invention; specifically, the utility model discloses a filter flask 1 includes filter flask body 11 and filter flask head 12, and filter flask body 11 adopts the spin-melt technology with filter flask head 12 to be connected, connects and forms a whole.

The top end of the filter element 3 is sleeved with a filter element cover 302, the filter element cover 302 is in a groove shape, the filter element 3 can be inserted into the groove of the filter element cover 302, the side wall of the filter element cover 302 is bonded with the filter element 3 by water sealing glue, and the side wall and the top end of the filter element 3 are mutually isolated; the cartridge cover 302 surrounds the top ends of the center tube 4 and the concentrate tube 6.

The filter cover 2 is connected with the filter flask head 12 by a rotary buckle, sealed by a sealing ring and can be detached by screwing and rotating.

The filter element cover 302, the filter flask head 12 and the filter cover 2 enclose a water inlet channel 211; the filter element cover 302 and the filter cover 2 enclose a pure water channel 221 and a concentrated water channel 231.

As shown in fig. 3A, a cross-sectional view of the cross-flow reverse osmosis filtration device provided by the present invention is shown; the filter element cover 302 is in an annular step shape, and the filter bottle head 12 surrounds the filter element cover 302; the filter bottle head 12 is in an annular step shape, and the filter cover 2 surrounds the filter bottle head 12; the side walls of the central pipe 4 and the concentrated water pipe 6, which are contacted with the filter element cover 302, are respectively provided with a sealing ring; a sealing ring is arranged on the side wall of the filter element cover 302, which is contacted with the filter cover 2; a sealing ring is arranged on the side wall of the filter flask head 12 contacted with the filter cover 2.

As shown in fig. 3B, which is a schematic view of the flow paths of raw water, purified water and concentrated water, thin solid arrows in the figure indicate the raw water path, open arrows indicate the concentrated water path, and thick solid arrows indicate the purified water path; the filter element cover 302, the filter flask head 12 and the filter flask cover 2 enclose a water inlet channel 211, namely the water inlet channel 211 is formed by the filter element cover 302, a cavity channel inside the filter flask head 2 and a cavity channel inside the filter flask head 12; raw water flows in from the water inlet 21, flows along the water inlet channel 211 and finally enters a gap between the filter element 3 and the filter flask 1; the filter element cover 302 and the filter cover 2 enclose a water purification channel 221 and a concentrated water channel 231, and the water purification channel 221 is formed by a cavity channel in the filter element cover 302, a cavity channel in the filter flask head 12 and a cavity channel in the filter cover 2; the concentrated water channel 231 is formed by a cavity channel in the filter element cover 302, a cavity channel in the filter flask head 12 and a cavity channel in the filter cover 2; raw water enters from the side wall of the filter element 3, and purified water after filtration enters the central tube 4, flows upwards along the central tube 4, enters the water purification channel 221 after reaching the top end of the central tube 4, flows along the water purification channel 221, and finally flows out from the water purification outlet 22; the unfiltered concentrated water flows out from the top end and the bottom end of the filter element 3 respectively, the concentrated water flowing out from the top end directly enters the concentrated water channel 231, the concentrated water flowing out from the bottom end enters the concentrated water pipe 6 and flows upwards along the concentrated water pipe 6, and the two concentrated water paths are finally combined, enter the concentrated water channel 231 together and are discharged from the concentrated water outlet 23.

The assembly is carried out in the following sequence: the filter element 3, the central tube 4, the concentrated water tube 6 and the like are assembled and then put into the filter flask body 11, the filter flask head 12 is melted at the end part of the filter flask body 11, and finally the filter cover 2 is rotationally clamped and connected.

As shown in fig. 3C, which is a partial enlarged view of the portion a in fig. 3A, a concentrated water through hole 121 is formed around the filter bottle head 12, and concentrated water passes through the concentrated water through hole 121 from below the filter bottle head 12 to above the filter bottle head 12. Instead of being in the form of an opening, a separate conduit may be used.

The concentrated water pipe 6 is longer than the central pipe 4, the top and the bottom of the periphery of the concentrated water pipe 6 are respectively sleeved with a concentrated water ring seat 61, the concentrated water ring seat 61 is cylindrical, and the periphery of the concentrated water ring seat is convexly provided with a baffle ring, as shown in figure 3D, the cross section of the filtering cover part of the lateral flow type reverse osmosis filtering device provided by the utility model is shown; the dense water ring seat 61 is made of waterproof materials such as rubber and the like, is sleeved on the periphery of the dense water pipe 6, and the filtering cover 2 and the central pipe 4 are axially pressed and connected with a baffle ring of the dense water ring seat 61 above in a pressing mode to play a role of water isolation.

The bottom suit filter core seat 301 of center tube 4, filter core seat 301 is the recess shape, and the suit is in the bottom periphery of center tube 4, and sets up the sealing washer between 4 with the center tube, keeps apart the pure water in dense water and the center tube 4. The filter element seat 301 and the concentrated water ring seat 61 are respectively sealed with the outer wall and the inner wall of the bottom end of the central tube 4, and play a role in double water insulation.

The concentrated water outlet 23 is inserted into the purified water outlet 22, the inner diameter of the purified water outlet 22 is larger than the outer diameter of the concentrated water outlet 23, the purified water channel 221 is connected to the side wall of the purified water outlet 22, the purified water outlet 22 is an annular cavity, and the concentrated water outlet 2 is a cylindrical cavity.

On the basis of any one of the above technical schemes and the combination thereof, the filter element 3 of the utility model comprises a reverse osmosis membrane 31, a fresh water diversion net 32 and a concentrated water diversion net 33 which are arranged in a laminated winding way; fig. 4A is a cross-sectional view of the filter element 3; the reverse osmosis membrane 31 and the fresh water diversion net 32 enclose a fresh water cavity, as shown in fig. 4B, which is a structural schematic diagram of the fresh water cavity in an unfolded state; waterproof rubber strips 34 are arranged on the upper edge, the lower edge and the outer side edge of the fresh water cavity; the reverse osmosis membrane 31 and the concentrated water diversion net 33 enclose a concentrated water cavity, as shown in fig. 4C, which is a structural schematic diagram of the developed state of the concentrated water cavity; waterproof rubber strips 34 are arranged on the upper edge and the lower edge of the concentrated water cavity, the waterproof rubber strips 34 are not arranged on the outer side edges, concentrated water discharge ports 35 are arranged on the waterproof rubber strips 34 arranged on the upper edge and the lower edge, raw water enters from the outer side edges of the concentrated water cavity and is filtered by a reverse osmosis membrane 31 to form purified water, and unfiltered water forms concentrated water and is discharged from the concentrated water discharge ports 35 which are arranged up and down respectively.

Preferably, the waterproof rubber strip 34 is obliquely arranged in the middle of the concentrated water cavity to guide the concentrated water entering from the outer side edge of the concentrated water cavity, the waterproof rubber strip 34 obliquely arranged in the middle and the waterproof rubber strips 34 at the upper edge and the lower edge form two conical flow guide channels to respectively guide the water to the concentrated water discharge port 35, and the water flow speed is accelerated.

As shown in fig. 5, it is a schematic view of the assembly of the reverse osmosis membrane 31, the fresh water diversion net 32 and the concentrated water diversion net 33; the fresh water diversion net 32 and the concentrated water diversion net 33 are inserted into a crack formed by folding the reverse osmosis membrane 31; the reverse osmosis membrane 31 has a large area, is folded to form a plurality of layers, and is convenient to process and produce because a fresh water diversion net 32 or a concentrated water diversion net 33 is inserted between two adjacent layers.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. The lateral flow type reverse osmosis filtering device is characterized by comprising a filtering bottle (1) and a filtering cover (2) which are sealed relatively, wherein a cavity enclosed by the filtering bottle (1) and the filtering cover (2) is internally provided with a filter element (3);

the filter cover (2) is provided with a water inlet (21), a purified water outlet (22) and a concentrated water outlet (23);

the water inlet (21) is communicated with a gap between the filter flask (1) and the filter element (3), and a central pipe (4) for circulating purified water is arranged in the middle of the filter element (3);

the lateral wall top of filter core (3) with strain lid (2) sealed relatively, the raw water is followed the lateral wall of filter core (3) gets into, and the water purification after the filtration is followed center tube (4) flow, and unfiltered dense water can be followed the top of filter core (3) is discharged.

2. A lateral flow reverse osmosis filtration device according to claim 1, wherein a water-proof sealing ring (5) is arranged between the bottom of the side wall of the filter element (3) and the inner wall of the filter flask (1);

a concentrated water pipe (6) is inserted in the central pipe (4), and concentrated water discharged from the bottom end of the filter element (3) flows upwards through the concentrated water pipe (6) and is discharged from the concentrated water outlet (23).

3. The lateral flow reverse osmosis filtration device according to claim 2, wherein the filter flask (1) comprises a filter flask body (11) and a filter flask head (12), and the filter flask body (11) and the filter flask head (12) are connected by a spin-melt process;

a filter element cover (302) is sleeved at the top end of the filter element (3), the side wall of the filter element cover (302) is bonded with the filter element (3) by water sealing glue, and the filter element cover (302) surrounds the top ends of the central pipe (4) and the concentrated water pipe (6);

the filter cover (2) is connected with the filter bottle head (12) by adopting a rotary buckle;

the filter element cover (302), the filter bottle head (12) and the filter cover (2) enclose a water inlet channel (211); the filter element cover (302) and the filter cover (2) enclose a pure water channel (221) and a concentrated water channel (231).

4. A lateral flow reverse osmosis filtration device according to claim 3, wherein concentrate water passing holes (121) are provided around the cartridge head (12).

5. The lateral-flow reverse osmosis filter device according to claim 3, wherein the concentrate pipe (6) is longer than the central pipe (4), the top and the bottom of the periphery of the concentrate pipe (6) are respectively sleeved with a concentrate ring seat (61), the concentrate ring seat (61) is cylindrical, a baffle ring is arranged on the periphery of the concentrate ring seat, and the filter cover (2) and the central pipe (4) are axially pressed and connected with the baffle ring of the concentrate ring seat (61) above;

the bottom end of the central pipe (4) is sleeved with a filter element seat (301), and the filter element seat (301) and the concentrated water ring seat (61) are respectively sealed with the outer wall and the inner wall of the bottom end of the central pipe (4).

6. A side-flow reverse osmosis filtration device according to claim 3, wherein the concentrate outlet (23) is inserted within the clean water outlet (22).

7. A lateral flow reverse osmosis filtration device according to any one of claims 1 to 6, wherein the filter element (3) comprises a reverse osmosis membrane (31), a fresh water diversion net (32) and a concentrated water diversion net (33) which are arranged in a stacked and wound manner;

the reverse osmosis membrane (31) and the fresh water diversion net (32) enclose a fresh water cavity, and waterproof rubber strips (34) are arranged on the upper edge, the lower edge and the outer side edge of the fresh water cavity; the reverse osmosis membrane (31) and the concentrated water diversion net (33) enclose a concentrated water cavity, the waterproof rubber strips (34) are arranged on the upper edge and the lower edge of the concentrated water cavity, and concentrated water discharge ports (35) are arranged on the waterproof rubber strips (34) arranged on the upper edge and the lower edge.

8. The lateral flow reverse osmosis filtration device of claim 7, wherein the waterproof strip (34) is obliquely arranged in the middle of the concentrate chamber and guides the concentrate entering from the outer side of the concentrate chamber.

9. The lateral flow reverse osmosis filtration device of claim 8, wherein the fresh water flow directing net (32) and the concentrate flow directing net (33) are inserted into a gap formed by folding the reverse osmosis membrane (31).

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