CN218893542U

CN218893542U - RO membrane filter core with scale inhibition structure

Info

Publication number: CN218893542U
Application number: CN202222487341.9U
Authority: CN
Inventors: 胡兴亿; 缪虹娟
Original assignee: Foshan City Shunde District Bpsafe Environmental Protection Technology Co ltd
Current assignee: Foshan City Shunde District Bpsafe Environmental Protection Technology Co ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-04-21
Anticipated expiration: 2032-09-20

Abstract

The utility model relates to an RO membrane filter element with a scale inhibition structure, which comprises a filter flask and a filter seat, wherein the filter flask is provided with a preposed filter element, an RO filter element and a scale inhibition piece; the front filter element is provided with a raw water pipeline, a waste water pipeline and a pure water pipeline, wherein the input end of the raw water pipeline penetrates out of the filter seat, the output end of the raw water pipeline is communicated with the input end of the scale inhibition piece, the input end of the waste water pipeline is communicated with the waste water outlet end at the top of the RO filter element, the output end of the waste water pipeline penetrates out of the filter seat, the input end of the pure water pipeline is communicated with the water outlet end at the center of the RO filter element, and the output end of the pure water pipeline penetrates out of the filter seat; the RO filter core is internally provided with a vertical water outlet pipeline and a water outlet, the water outlet is communicated with the water outlet pipeline, and the water outlet pipeline is communicated with the pure water pipeline. The scale inhibition piece is used for reducing the content of calcium and magnesium ions in raw water, effectively reducing the content of the calcium and magnesium ions in the raw water, and solving the problem that the service life is shortened due to the fact that the traditional filter element is easy to be blocked due to calcium and magnesium ion scale deposition.

Description

RO membrane filter core with scale inhibition structure

Technical Field

The utility model relates to the technical field of filter elements, in particular to an RO membrane filter element with a scale inhibition structure.

Background

At present, the higher the hardness of water quality is, the higher the content of calcium and magnesium ions in water is, and long-term drinking of high-hardness water can cause chronic poisoning of human bodies and seriously harm the health of people. The content of calcium and magnesium ions in the high-hardness water can be effectively reduced through the filtration of the RO filter element in the water purifier. However, because the high-hardness water contains a large amount of calcium and magnesium ions, the RO filter element is easy to be blocked due to scaling of the calcium and magnesium ions, and the service life of the RO filter element is seriously shortened.

Disclosure of Invention

The utility model aims to provide an RO membrane filter element with a scale inhibition structure, which is used for reducing the content of calcium and magnesium ions in raw water, effectively reducing the content of the calcium and magnesium ions in the raw water and solving the problem that the traditional filter element is easy to be blocked due to calcium and magnesium ion scale deposition, so that the service life is shortened.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the RO membrane filter core with the scale inhibition structure comprises a filter flask and a filter seat, wherein the top of the filter flask is fixedly connected with the filter seat, and the filter flask is sequentially provided with a front filter core, an RO filter core and a scale inhibition piece from top to bottom;

the RO filter element is used for filtering raw water and producing pure water and waste water, the front filter element is used for separating the raw water, the waste water and the pure water, and the scale inhibition piece is used for reducing the content of calcium and magnesium ions in the raw water;

the front filter element is provided with a raw water pipeline, a waste water pipeline and a pure water pipeline, the input end of the raw water pipeline penetrates out of the filter seat, the output end of the raw water pipeline is communicated with the input end of the scale inhibition piece, the input end of the waste water pipeline is communicated with the waste water outlet end at the top of the RO filter element, the output end of the waste water pipeline penetrates out of the filter seat, the input end of the pure water pipeline is communicated with the water outlet end at the center of the RO filter element, and the output end of the pure water pipeline penetrates out of the filter seat; the raw water pipeline, the pure water pipeline and the waste water pipeline are not communicated;

the RO filter core is internally provided with a vertical water outlet pipeline and a water outlet, the water outlet is communicated with the water outlet pipeline, the water outlet pipeline is communicated with the pure water pipeline, and the water outlet is used for allowing pure water to flow into the water outlet pipe.

Optionally, the front filter element is sequentially provided with a first hollow tube, a second hollow tube and a third hollow tube from outside to inside;

the first hollow tube is positioned on the inner wall of the filter flask, the second hollow tube is positioned on the inner wall of the first hollow tube, and the third hollow tube is positioned on the inner wall of the second hollow tube;

a gap between the outer wall of the first hollow tube and the inner wall of the filter flask forms a front half part of the raw water pipeline, and a gap between the outer wall of the RO filter element and the inner wall of the filter flask forms a rear half part of the raw water pipeline; the gap between the outer wall of the second hollow tube and the inner wall of the first hollow tube forms the waste water pipeline, and the inside of the third hollow tube forms the pure water pipeline.

Optionally, the first hollow tube vertically comprises a front part, a first connecting part and a rear part, the diameter of the rear part is larger than that of the front part, the bottom of the front part is horizontally communicated with the inner side of the first connecting part, and the outer side of the first connecting part is horizontally communicated with the top of the rear part;

the first connecting part is vertically provided with a first one-way valve, the first connecting part is provided with a connecting cavity, the input end of the first one-way valve penetrates out of the top of the first connecting part, the output end of the first one-way valve is positioned in the connecting cavity and connected, the output end of the connecting cavity horizontally penetrates out of the first connecting part, and the first one-way valve and the connecting cavity are used for supplying raw water to flow unidirectionally;

the rear portion is arranged on the top of the RO filter element in a surrounding mode.

Optionally, the bottom of second hollow tube is equipped with the second connecting portion, the vertical second check valve that is equipped with of second connecting portion, the input of second check valve with the input of waste water pipeline is linked together, the input of second check valve with the waste water play water end of the top of RO filter core is linked together, the second check valve supplies waste water unidirectional flow.

Optionally, a first sealing element is fixedly sleeved on the outer side of the first connecting part, and the first sealing element is abutted against the inner wall of the filter flask;

the outside fixed cover of second connecting portion is equipped with the second sealing member, the second sealing member with the inside looks butt of first hollow tube.

Optionally, the raw water pipeline is connected with the input end of the scale inhibitor;

the RO filter element is characterized in that a mounting piece is arranged between the RO filter element and the scale inhibition piece, a connecting hole is formed in the center of the mounting piece, the input end of the connecting hole is communicated with the output end of the scale inhibition piece, and the output end of the connecting hole is communicated with the water inlet end of the bottom wall of the RO filter element.

Compared with the prior art, the embodiment of the utility model has the following beneficial effects:

1. when raw water flows through the scale inhibition piece, the scale inhibition piece is used for reducing the content of calcium and magnesium ions in the raw water, so that the content of the calcium and magnesium ions in the raw water is effectively reduced, and the problem that the service life is shortened due to the fact that the traditional filter element is easy to be blocked due to calcium and magnesium ion scale deposition is solved;

2. the first hollow tube is provided with a first one-way valve and a connecting cavity, raw water flows in a gap between the front part and the filter flask at the moment, sequentially flows through the first one-way valve and the connecting cavity, and then flows in a gap between the rear part and the filter flask. The first one-way valve can effectively limit the flow direction of raw water and reduce the occurrence of backflow of the raw water.

Drawings

FIG. 1 is an exploded view of an RO membrane cartridge with scale inhibiting structure according to one embodiment of the present utility model;

FIG. 2 is a schematic illustration of a pre-cartridge in an RO membrane cartridge with a scale inhibiting structure according to one embodiment of the utility model;

FIG. 3 is a cross-sectional view of a first hollow tube of an RO membrane cartridge having a scale inhibiting structure according to one embodiment of the utility model;

FIG. 4 is a schematic illustration of a scale inhibitor in an RO membrane cartridge having a scale inhibiting structure according to one embodiment of the utility model;

wherein, 1, a filter flask; 2. a filter base; 3. a filter element is arranged in front; 301. a raw water pipe; 302. a waste water pipe; 303. a pure water pipe; 31. a first hollow tube; 311. a front part; 312. a first connection portion; 3121. a first one-way valve; 3122. a connecting cavity; 3123. a first seal; 313. a rear portion; 32. a second hollow tube; 321. a second connecting portion; 322. a second one-way valve; 323. a second seal; 33. a third hollow tube; 4.RO filter core; 41. a water outlet pipe; 42. a water outlet; 5. a scale inhibitor; 6. a mounting member; 61. and a connection hole.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

An RO membrane cartridge with scale inhibiting structure according to an embodiment of the present utility model will be described with reference to fig. 1 to 4.

The RO membrane filter core with the scale inhibition structure comprises a filter flask 1 and a filter seat 2, wherein the top of the filter flask 1 is fixedly connected with the filter seat 2, and the filter flask 1 is sequentially provided with a front filter core 3, an RO filter core 4 and a scale inhibition piece 5 from top to bottom.

The RO filter element 4 is used for filtering raw water and producing pure water and waste water, the front filter element 3 is used for separating the raw water, the waste water and the pure water, and the scale inhibitor 5 is used for reducing the content of calcium and magnesium ions in the raw water; the pre-filter element 3 is provided with a raw water pipeline 301, a waste water pipeline 302 and a pure water pipeline 303, wherein the input end of the raw water pipeline 301 penetrates out of the filter seat 2, the output end of the raw water pipeline 301 is communicated with the input end of the scale inhibitor 5, the input end of the waste water pipeline 302 is communicated with the waste water outlet end at the top of the RO filter element 4, the output end of the waste water pipeline 302 penetrates out of the filter seat 2, the input end of the pure water pipeline 303 is communicated with the water outlet end at the center of the RO filter element 4, and the output end of the pure water pipeline 303 penetrates out of the filter seat 2; none of the raw water pipe 301, the pure water pipe 303, and the waste water pipe 302 are communicated;

the RO filter element 4 is internally provided with a vertical water outlet pipeline 41 and a water outlet 42, the water outlet 42 is communicated with the water outlet pipeline 41, the water outlet pipeline 41 is communicated with the pure water pipeline 303, and the water outlet 42 is used for allowing pure water to flow into the water outlet pipeline 41.

The RO membrane filter core with the scale inhibition structure prepared by the scheme has the working process that raw water flows into the filter flask 1 from the input end of the raw water pipeline 301, and then the raw water sequentially flows through the scale inhibition piece 5 and the RO filter core 4.RO filter core 4 can filter the raw water to produce pure water and waste water, make waste water flow out filter flask 1 from the output of waste water pipeline 302, pure water flows out filter flask 1 from the output of pure water pipeline 303, because leading filter core 3 can separate raw water, waste water and pure water, make raw water pipeline 301, pure water pipeline 303 and waste water pipeline 302 all not communicate, thereby can reduce raw water and waste water, pure water mixing together, then the condition of the built-in filter core of this scheme of discharging together appears.

It is worth noting that the RO filter element 4 in the scheme is a commercial product, and can reduce other soluble impurities in raw water, so that pure water can reach the level of direct reference.

In this scheme, the scale inhibitor 5 is a carbon rod. When raw water flows through the scale inhibition piece 5, the scale inhibition piece 5 is used for reducing the content of calcium and magnesium ions in the raw water, so that the content of the calcium and magnesium ions in the raw water is effectively reduced, and the problem that the service life is shortened due to the fact that the traditional filter element is easy to be blocked due to calcium and magnesium ion scale deposition is solved.

Pure water filtered by the RO filter element 4 is discharged from the water outlet 42 and flows into the water outlet pipe 41, and since the water outlet pipe 41 is communicated with the pure water pipe 303, pure water can be sequentially discharged from the water outlet 42 to the pure water pipe 303.

The wastewater which cannot be filtered by the RO filter element 4 cannot be discharged into the water outlet pipeline 41 through the water outlet 42, and can only be discharged out of the RO filter element 4 from the wastewater outlet end at the top of the RO filter element 4. Since the top of the RO filter element 4 is communicated with the waste water pipe 302, waste water can be discharged to the outside through the waste water pipe 302, thereby reducing the mixing of waste water and raw water.

Further, the pre-filter element 3 is provided with a first hollow tube 31, a second hollow tube 32 and a third hollow tube 33 from outside to inside in sequence; the first hollow tube 31 is located on the inner wall of the filter flask 1, the second hollow tube 32 is located on the inner wall of the first hollow tube 31, and the third hollow tube 33 is located on the inner wall of the second hollow tube 32.

A gap between the outer wall of the first hollow tube 31 and the inner wall of the filter flask 1 forms a front half of the raw water pipe 301, and a gap between the outer wall of the RO cartridge 4 and the inner wall of the filter flask 1 forms a rear half of the raw water pipe 301; the waste water pipe 302 is formed by a gap between the outer wall of the second hollow pipe 32 and the inner wall of the first hollow pipe 31, and the pure water pipe 303 is formed inside the third hollow pipe 33.

Wherein, in order to reduce raw water and waste water, pure water and mix together, this scheme is equipped with first hollow tube 31, second hollow tube 32 and third hollow tube 33 in leading filter core 3, and the outside of second hollow tube 32 is located to first hollow tube 31 cover, and the outside of third hollow tube 33 is located to second hollow tube 32 cover for all do not communicate between raw water pipeline 301, waste water pipeline 302 and the pure water pipeline 303, thereby separates raw water, waste water and pure water completely.

Further, the first hollow pipe 31 vertically includes a front portion 311, a first connection portion 312, and a rear portion 313, the diameter of the rear portion 313 is larger than that of the front portion 311, the bottom of the front portion 311 is horizontally connected to the inner side of the first connection portion 312, and the outer side of the first connection portion 312 is horizontally connected to the top of the rear portion 313.

The first connecting portion 312 is vertically provided with a first one-way valve 3121, the first connecting portion 312 is provided with a connecting cavity 3122, an input end of the first one-way valve 3121 passes through the top of the first connecting portion 312, an output end of the first one-way valve 3121 is positioned in the connecting cavity 3122 and is connected, an output end of the connecting cavity 3122 horizontally passes through the first connecting portion 312, and the first one-way valve 3121 and the connecting cavity 3122 are used for supplying raw water to flow unidirectionally; the rear portion 313 is disposed around the top of the RO cartridge 4.

It should be noted that the first hollow tube 31 is provided with the first check valve 3121 and the connection chamber 3122, and raw water flows in a gap between the front portion 311 and the filter flask 1, flows through the first check valve 3121 and the connection chamber 3122 in sequence, and then flows in a gap between the rear portion 313 and the filter flask 1. Wherein, the first check valve 3121 can effectively limit the flowing direction of the raw water, and reduce the occurrence of the backflow of the raw water.

In addition, the rear portion 313 completely wraps the top of the RO cartridge 4, so that the wastewater flowing out of the top of the RO cartridge 4 is difficult to mix with raw water, further separating the raw water from the wastewater.

Further, a second connecting portion 321 is disposed at the bottom of the second hollow tube 32, a second one-way valve 322 is vertically disposed at the second connecting portion 321, an input end of the second one-way valve 322 is communicated with an input end of the waste water pipeline 302, an input end of the second one-way valve 322 is communicated with a waste water outlet end at the top of the RO filter element 4, and the second one-way valve 322 is used for unidirectional flow of waste water.

The second hollow tube 32 is provided with a second one-way valve 322, so that the wastewater flowing out from the wastewater outlet end at the top of the RO filter element 4 flows into a gap between the second hollow tube 32 and the first hollow tube 31 from the second one-way valve 322 and then flows out of the filter flask 1. Wherein, the second check valve 322 can effectively restrict the flowing direction of the waste water, and reduce the occurrence of backflow of the waste water.

Further, a first sealing member 3123 is fixedly sleeved on the outer side of the first connecting portion 312, and the first sealing member 3123 abuts against the inner wall of the filter flask 1;

a second sealing member 323 is fixedly sleeved on the outer side of the second connecting portion 321, and the second sealing member 323 abuts against the inside of the first hollow tube 31.

Since the filter flask 1 is sleeved outside the first hollow tube 31, raw water can flow from the gap between the first connection portion 312 and the filter flask 1, so that it is difficult to restrict the flow direction of the raw water, and backflow of the raw water occurs. In this embodiment, the first sealing member 3123 is disposed in the gap between the first connection portion 312 and the filter flask 1, and the first sealing member 3123 can sufficiently fill the gap between the first connection portion 312 and the filter flask 1, so as to reduce the occurrence of raw water flowing in the gap.

Similarly, the first hollow tube 31 is sleeved outside the second hollow tube 32, and the second connecting portion 321 is provided with a second sealing member 323, so that a gap between the second connecting portion 321 and the first hollow tube 31 can be sealed, and wastewater can only flow into the wastewater pipeline 302 from the second one-way valve 322.

Further, the raw water pipeline 301 is connected with the input end of the scale inhibitor 5; the RO filter element 4 and the scale inhibition piece 5 are provided with a mounting piece 6 therebetween, the center of the mounting piece 6 is provided with a connecting hole 61, the input end of the connecting hole 61 is communicated with the output end of the scale inhibition piece 5, and the output end of the connecting hole 61 is communicated with the bottom wall of the RO filter element 4.

In this solution, the raw water must pass through the scale inhibitor 5, reach the center of the scale inhibitor 5, flow to the bottom of the RO filter element 4 under the guidance of the connection hole 61, and then enter the RO filter element 4 for filtration.

At this time, the scale inhibitor 5 can effectively prolong the time of raw water flowing into the RO filter element 4, so that raw water can be fully contacted with the scale inhibitor, thereby removing calcium and magnesium ions in raw water, improving the descaling effect of the scheme and reducing the occurrence of the condition that the RO filter element 4 is blocked by the calcium and magnesium ions.

Other constructions, etc., and operation of an RO membrane cartridge having a scale inhibiting structure according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, reference to the term "embodiment," "example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The RO membrane filter core with the scale inhibition structure is characterized by comprising a filter flask and a filter seat, wherein the top of the filter flask is fixedly connected with the filter seat, and the filter flask is sequentially provided with a front filter core, an RO filter core and a scale inhibition piece from top to bottom;

2. The RO membrane filter core with the scale inhibition structure according to claim 1, wherein the front filter core is sequentially provided with a first hollow pipe, a second hollow pipe and a third hollow pipe from outside to inside;

3. The RO membrane cartridge with scale inhibiting structure according to claim 2, wherein the first hollow tube vertically comprises a front portion, a first connecting portion, and a rear portion, the rear portion having a diameter greater than that of the front portion, the bottom of the front portion being in horizontal communication with the inside of the first connecting portion, the outside of the first connecting portion being in horizontal communication with the top of the rear portion;

4. The RO membrane filter core with the scale inhibition structure according to claim 3, wherein a second connecting part is arranged at the bottom of the second hollow pipe, a second one-way valve is vertically arranged at the second connecting part, the input end of the second one-way valve is communicated with the input end of the waste water pipeline, the input end of the second one-way valve is communicated with the waste water outlet end at the top of the RO filter core, and the second one-way valve is used for unidirectional flow of the waste water.

5. The RO membrane filter core with the scale inhibition structure according to claim 4, wherein a first sealing piece is fixedly sleeved on the outer side of the first connecting part and is abutted against the inner wall of the filter flask;

6. The RO membrane cartridge with scale inhibiting structure according to claim 1, wherein the raw water conduit is connected to the input end of the scale inhibitor;