CN104338439B - Ro membrane filter core structure - Google Patents
Ro membrane filter core structure Download PDFInfo
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- CN104338439B CN104338439B CN201310317169.5A CN201310317169A CN104338439B CN 104338439 B CN104338439 B CN 104338439B CN 201310317169 A CN201310317169 A CN 201310317169A CN 104338439 B CN104338439 B CN 104338439B
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- Prior art keywords
- filter element
- membrane
- cavity
- water
- communicated
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- 239000012528 membrane Substances 0.000 title claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 146
- 239000008213 purified water Substances 0.000 claims abstract description 30
- 239000008399 tap water Substances 0.000 claims description 15
- 235000020679 tap water Nutrition 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 241000309551 Arthraxon hispidus Species 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000001223 reverse osmosis Methods 0.000 description 68
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides an RO membrane filter element structure which comprises an RO membrane, an RO membrane filter element cylinder, a central tube and a positioning cover, wherein the central tube is provided with a central tube; the RO membrane is arranged in the RO membrane filter element cylinder, and a gap is arranged between the RO membrane and the RO membrane filter element cylinder; the central tube penetrates through the RO membrane, one end of the central tube is sealed, and two independent cavities, namely a first cavity and a second cavity, are formed in the central tube; the first cavity is communicated with a purified water outlet on the positioning cover; the second cavity is communicated with a concentrated water outlet on the positioning cover; the first cavity is provided with a first through hole, and the second cavity is provided with a second through hole; running water enters the RO membrane filter element cylinder from the gap, flows to the bottom of the RO membrane filter element cylinder to enter the RO membrane, is filtered by the RO membrane, purified water flows to the first cavity through the first through hole, and concentrated water flows to the second cavity through the second through hole. The filter element is simple to manufacture, the pipeline is convenient to disassemble and assemble, the hidden danger of water leakage is reduced, the consistency of the filter element is good, the reliability is improved, and the cost is reduced.
Description
Technical Field
The invention relates to the field of water purifiers, in particular to an RO (reverse osmosis) membrane filter element structure.
Background
Due to the pollution of water quality of a water source, the lag of water purification equipment and technology of a city water plant, poor material of partial pipe networks and internal pipelines of users, poor management of a roof water tank and the continuous improvement of requirements of people on the water quality, so that a lot of city tap water users have dissatisfied feedback on the quality of tap water.
In the current household water purifier market, there are two major categories of water purifiers, one is reverse osmosis water purifier, and the other is general water quality processor, including ultrafiltration, activated carbon, ceramic, soft water, etc. The reverse osmosis water purifier is generally favored by most users due to high filtering precision (the aperture reaches 0.0001 μm, namely 0.1 nanometer) and good outlet water quality (the outlet water meets all indexes of GB5749 and can be directly drunk).
As a core component of the reverse osmosis water purifier, the structure reliability of the clamped RO membrane filter core (namely the reverse osmosis membrane filter core) is very important for ensuring the operation stability of the whole water purifier and the quality of outlet water.
The structure of the clamping RO membrane filter element has two forms, one is a common clamping form, and the other is an upper water outlet clamping form. The RO membrane filter element in the common clamping connection mode is characterized in that a tap water inlet and a purified water outlet are arranged at the top of the filter element, a concentrated water discharge port is arranged at the bottom of the filter element, tap water enters the filter element from the tap water inlet and then flows out from the purified water outlet after being filtered, and concentrated water flows out from the bottom of the filter element. The structure that the tap water inlet, the purified water outlet and the concentrated water discharge port are arranged on different sides leads to complex and unattractive pipeline connection.
The RO membrane filter core of this kind of structure, the user is when its life-span is after changing, must tear the pipeline of concentrated water discharge port department open and tear, not only troublesome poeration, the purifier of wetting can flow out to the water storage in the connecting tube moreover, and more serious probably has the pipeline installation not in place and leaks the hidden danger when putting back again.
Go up the RO membrane filter core of water form, its top that moves the filter core with concentrated water discharge port, with running water inlet and pure water delivery port homonymy, easy dismounting reduces the hidden danger of leaking, but its inner structure has certain problem: the hollow positioning cover and the water channel converter are split into two parts, the two parts are formed in two times, and then the two parts are welded together by using ultrasonic waves, so that the manufacturing process is complex, the cost is high, the quality of the filter element is unstable, and the consistency is difficult to guarantee.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the RO membrane filter core structure which is simple to manufacture, reduces the hidden danger of water leakage and simultaneously reduces the cost. In order to achieve the purpose, the technical scheme of the invention is as follows:
an RO membrane filter element structure comprises an RO membrane, an RO membrane filter element cylinder, a central tube and a hollow positioning cover;
the RO membrane is arranged in the RO membrane filter element cylinder, and a gap is arranged between the RO membrane and the RO membrane filter element cylinder;
the central tube penetrates through the RO membrane, one end of the central tube is sealed, and two independent cavities, namely a first cavity and a second cavity, are arranged in the central tube;
the first cavity is communicated with a purified water outlet on the hollow positioning cover; the second cavity is communicated with a concentrated water outlet on the positioning cover;
a first through hole is formed in the first cavity, and a second through hole is formed in the second cavity;
running water enters the RO membrane filter element cylinder from the gap, flows to the bottom of the RO membrane filter element cylinder and enters the RO membrane, after being filtered by the RO membrane, purified water flows to the first cavity through the first through hole, and concentrated water flows to the second cavity through the second through hole.
Preferably, a flow guide pipe is arranged at the central hole of the hollow positioning cover;
pure water outlet holes are formed in the periphery of the central hole and communicated with the first cavity;
one end of the flow guide pipe is communicated with the second cavity of the central pipe, and the other end of the flow guide pipe is used as a concentrated water outlet.
Preferably, the RO membrane filter element structure further comprises a filter element head and a clamping head;
the hollow positioning cover is partially embedded into the filter element head and matched with the filter element head;
the filter element head is partially embedded into the clamping joint and matched with the clamping joint;
the filter element head is provided with a first channel and a second channel, the first channel is communicated with the purified water outlet hole, and the second channel is communicated with the flow guide pipe;
the clamping joint is provided with a purified water outlet and a concentrated water discharge outlet; the purified water outlet is communicated with the first channel, and the concentrated water discharge port is communicated with the second channel.
Preferably, the RO membrane cartridge structure further comprises an O-ring seal;
the O-shaped sealing ring is arranged at the joint of the filter element head and the joint head and the hollow positioning cover.
Preferably, the RO membrane filter element structure further comprises a filter element hanging plate and a filter element hanging ring which is arranged on the filter element hanging plate and used for hanging the RO membrane filter element cylinder;
the filter element hanging ring is arranged on the clamping joint.
Preferably, the first cavity is provided at a side portion in a radial direction of the center pipe, and the second cavity is provided at a middle portion in the radial direction of the center pipe.
Preferably, the filter element head and the clamping joint are respectively provided with a tap water channel which is communicated with the inner cavity of the RO membrane filter element cylinder.
Preferably, the joint is provided with a water inlet and a water outlet which have water stopping functions and are used for preventing water leakage when the filter element is replaced, and the water inlet is communicated with the tap water channel.
Preferably, the filter element head is also provided with a water inlet and a water outlet with water stopping function, so as to prevent water leakage when the filter element is replaced.
The invention has the beneficial effects that:
the RO membrane filter element structure is simple to manufacture, and solves the problems that the existing pipeline for clamping the RO membrane filter element is inconvenient to assemble and disassemble, has hidden water leakage danger and is not in place for inserting the tube; meanwhile, the problems that the manufacturing process of the upper water outlet clamping RO membrane filter element is complex, the cost is high, the quality of the filter element is unstable, and the consistency is difficult to guarantee are solved. The hollow positioning cover and the waterway converter in the prior art are combined into a whole to be made into a piece, and the piece is formed in one step, so that concentrated water flows out from a central hole at the upper end of the positioning cover, and filtered purified water flows out from small holes around the central hole at the upper end of the positioning cover. The cost is reduced and the reliability is improved.
Drawings
FIG. 1 is an exploded view of one embodiment of an RO membrane filter cartridge arrangement of the present invention;
FIG. 2 is a schematic view of the RO membrane cartridge assembly of FIG. 1, as assembled;
wherein,
1, a filter element hanging ring; 2, hanging a filter element plate; 3 concentrated water discharge port joint; 31 a concentrated water discharge;
4, a purified water outlet joint; 41 purified water outlet; 5, clamping a connector; 51 a tap water inlet;
6, a filter element head; 7, a hollow positioning cover; 71 a draft tube; 8, a central tube; 81 a first cavity;
82 a first via hole; 83 a second cavity; 84 a second through hole; 9 RO membrane sheet;
10 RO membrane cartridge body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the RO membrane filter cartridge structure of the present invention is further described in detail below with reference to the accompanying drawings and examples. 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 and 2, one embodiment of the RO membrane cartridge arrangement of the present invention comprises an RO membrane sheet 9, an RO membrane cartridge 10, a central tube 8, and a hollow positioning cap 7;
the RO membrane 9 is arranged in the RO membrane filter element cylinder 10, and a gap is arranged between the RO membrane 9 and the RO membrane filter element cylinder 10;
the central tube 8 penetrates through the RO membrane 9, one end (bottom end) of the central tube 8 is sealed, and two independent cavities, namely a first cavity 81 and a second cavity 83, are arranged in the central tube 8; preferably, the first chamber 81 is provided at the side of the center pipe 8 in the radial direction, and the second chamber 83 is provided at the middle of the center pipe 8 in the radial direction.
The first cavity 81 is communicated with a purified water outlet on the hollow positioning cover, the second cavity 83 is communicated with a concentrated water outlet on the positioning cover 7, a first through hole 82 is formed in the first cavity 81, and a second through hole 84 is formed in the second cavity 83;
tap water enters the RO membrane filter cartridge body 10 from the gap, flows to the bottom of the RO membrane filter cartridge body 10 to enter the RO membrane 9, is filtered by the RO membrane 9, purified water flows to the first cavity 81 through the first through holes 82, and concentrated water flows to the second cavity 83 through the second through holes 84.
Preferably, as an implementation mode, the draft tube 71 is arranged at the central hole of the hollow positioning cover 7;
the periphery of the central hole is provided with a purified water outlet hole which is communicated with the first cavity 81, one end of the guide pipe 71 is communicated with the second cavity 83 of the central pipe 8, and the other end of the guide pipe is used as a concentrated water outlet hole.
Preferably, as an implementation mode, the RO membrane filter cartridge structure further comprises a filter cartridge head 6 and a clamping joint 5;
the hollow positioning cover 7 is partially embedded into the filter element head 6 and is matched with the filter element head 6; the filter element head 6 is partially embedded into the clamping head 5 and is matched with the clamping head 5;
the filter element head 6 is provided with a first channel and a second channel, the first channel is communicated with the purified water outlet hole, the second channel is communicated with the draft tube 71,
the clamping joint 5 is provided with a purified water outlet and a concentrated water discharge outlet, the purified water outlet is communicated with the first channel, and the concentrated water discharge outlet is communicated with the second channel.
And the filter element head 6 and the clamping joint 5 are respectively provided with a tap water channel which is communicated with the inner cavity of the RO membrane filter element cylinder 10. Preferably, a water inlet and a water outlet with a water stopping function are arranged on the clamping joint 5 and used for preventing water leakage when the filter element is replaced, and the water inlet is communicated with the tap water channel. The water stopping function can be realized by arranging spring keys at the water inlet and the water outlet, and when the filter element head 6 is matched with the clamping joint 5, the spring keys are propped, so that the water inlet and the water outlet are both smooth; when the filter element head 6 is separated from the clamping joint 5, the spring button is reset, so that the water inlet and the water outlet are locked, water stopping is realized, the water leakage phenomenon is prevented when the filter element is replaced, the water source is saved, and meanwhile, the filter element can be freely replaced under the condition that an upstream water inlet valve is not closed.
Preferably, as an implementable mode, also be provided with the water inlet and the delivery port that have the stagnant water function on filter core head 6 for prevent to appear leaking when changing the filter core, when filter core head 6 and joint 5 cooperate, water inlet and delivery port on filter core head 6 are all unblocked, when filter core head 6 breaks away from joint 5, water inlet and delivery port on filter core head 6 realize the stagnant water function, when changing the filter core promptly, have prevented that the water refluence in the filter core barrel from appearing leaking the hidden danger. And an O-shaped sealing ring is arranged at the joint of the filter element head 6 and the clamping joint 5 and the hollow positioning cover 7 respectively.
Preferably, as an implementable mode, the RO membrane filter cartridge structure further comprises a filter cartridge hanging plate 2 and a filter cartridge hanging ring 1 arranged on the filter cartridge hanging plate 2 and used for hanging the RO membrane filter cartridge body 10, and the filter cartridge hanging ring 1 is arranged on the clamping joint 5. The filter element hanging plate 2 and the filter element hanging ring 1 are arranged, so that the RO membrane filter element cylinder 10 is convenient to install.
Through the water supply after the filtration of several preceding grades of filter cores, under the water pressure effect, enter into inside RO membrane filter core barrel 10 through running water inlet 51, flow between cavity (clearance) that RO membrane filter core barrel 10 inner wall and RO diaphragm 9 outer wall formed, flow to behind the bottom of RO membrane filter core barrel 10, because of the bottom of center tube 8 is sealed up, can only follow the inside that RO diaphragm 9 entered into RO diaphragm 9 bottom, the running water is in the inside flow of RO diaphragm, impurity is filtered, water quality can purify. The central tube 8 has a flow dividing function, water flowing out of the RO membrane 9 is divided into two paths, one path is pure water, the other path is concentrated water, the pure water enters a first cavity 81 at the smaller side in the central tube 8 through a row of first through holes 82 formed in the middle of the central tube, and the concentrated water enters a second cavity 83 at the larger side in the central tube 8 through a row of second through holes 84 formed in the top of the central tube; the upper end of the central tube 8 is inserted into the hollow positioning cover 7, the O-shaped sealing ring is assembled at the gap, purified water and concentrated water which are shunted by the central tube flow are guided by the hollow positioning cover 7, the concentrated water flows out from the central hole at the upper end of the hollow positioning cover 7, and the filtered purified water flows out from small holes (purified water outlet holes) around the central hole at the upper end of the hollow positioning cover 7. The hollow positioning cover 7 is communicated with each water flow channel of the filter element head 6, the filter element head 6 is communicated with each water flow channel of the clamping joint 5, a gap at the communicated position is sealed by an O-shaped sealing ring, purified water finally filtered by the RO membrane filter element flows out through a purified water outlet 41 of the purified water outlet joint 4, and concentrated water flows out from a concentrated water discharge port 31 of a concentrated water discharge port joint 3 arranged at the top of the clamping joint RO membrane filter element.
The RO membrane filter element structure in the above embodiment solves the problems of inconvenient assembly and disassembly, hidden water leakage and improper tube insertion of the existing common clamped RO membrane filter element pipeline; meanwhile, the problems that the manufacturing process of the upper water outlet clamping RO membrane filter element is complex, the cost is high, the quality of the filter element is unstable, the consistency is difficult to guarantee and the like are solved. The hollow positioning cover and the waterway converter in the prior art are combined into a whole, and the hollow positioning cover and the waterway converter are made into a piece and formed at one time. Meanwhile, the concentrated water flows out from the center hole at the upper end of the positioning cover, and the filtered purified water flows out from the small holes around the center hole at the upper end of the positioning cover.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The utility model provides a RO membrane filter core structure which characterized in that:
comprises an RO membrane, an RO membrane filter element cylinder body, a central tube and a hollow positioning cover;
the RO membrane is arranged in the RO membrane filter element cylinder, and a gap is arranged between the RO membrane and the RO membrane filter element cylinder;
the central tube penetrates through the RO membrane, one end of the central tube is sealed, and two independent cavities, namely a first cavity and a second cavity, are arranged in the central tube;
the first cavity is communicated with a purified water outlet on the hollow positioning cover; the second cavity is communicated with a concentrated water outlet on the positioning cover;
a first through hole is formed in the first cavity, and a second through hole is formed in the second cavity;
tap water enters the RO membrane filter element cylinder from the gap, flows to the bottom of the RO membrane filter element cylinder to enter the RO membrane, is filtered by the RO membrane, pure water flows to the first cavity through the first through hole, and concentrated water flows to the second cavity through the second through hole;
a flow guide pipe is arranged at the central hole of the hollow positioning cover;
pure water outlet holes are formed in the periphery of the central hole and communicated with the first cavity;
one end of the flow guide pipe is communicated with the second cavity of the central pipe, and the other end of the flow guide pipe is used as a concentrated water outlet.
2. A RO membrane cartridge arrangement according to claim 1 wherein:
the filter element head and the clamping head are also included;
the hollow positioning cover is partially embedded into the filter element head and matched with the filter element head;
the filter element head is partially embedded into the clamping joint and matched with the clamping joint;
the filter element head is provided with a first channel and a second channel, the first channel is communicated with the purified water outlet hole, and the second channel is communicated with the flow guide pipe;
the clamping joint is provided with a purified water outlet and a concentrated water discharge outlet; the purified water outlet is communicated with the first channel, and the concentrated water discharge port is communicated with the second channel.
3. A RO membrane cartridge arrangement according to claim 2 wherein:
the device also comprises an O-shaped sealing ring;
the O-shaped sealing ring is arranged at the joint of the filter element head and the joint head and the hollow positioning cover.
4. A RO membrane cartridge arrangement according to claim 3 wherein:
the RO membrane filter element comprises a RO membrane filter element barrel body, a filter element hanging plate and a filter element hanging ring, wherein the RO membrane filter element barrel body is arranged on the filter element hanging plate;
the filter element hanging ring is arranged on the clamping joint.
5. A RO membrane cartridge arrangement according to any of claims 1-4, characterized in that:
the first cavity is arranged on the side part of the central pipe in the radial direction, and the second cavity is arranged in the middle of the central pipe in the radial direction.
6. A RO membrane cartridge arrangement according to claim 5, wherein:
and the filter element head and the clamping joint are respectively provided with a tap water channel which is communicated with the inner cavity of the RO membrane filter element cylinder.
7. A RO membrane cartridge arrangement according to claim 6, wherein:
the clamping joint is provided with a water inlet and a water outlet which have a water stopping function and are used for preventing water leakage when the filter element is replaced, and the water inlet is communicated with the tap water channel.
8. A RO membrane cartridge arrangement according to claim 7 wherein:
the filter element head is also provided with a water inlet and a water outlet which have water stopping functions and are used for preventing water leakage when the filter element is replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310317169.5A CN104338439B (en) | 2013-07-25 | 2013-07-25 | Ro membrane filter core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310317169.5A CN104338439B (en) | 2013-07-25 | 2013-07-25 | Ro membrane filter core structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104338439A CN104338439A (en) | 2015-02-11 |
| CN104338439B true CN104338439B (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310317169.5A Expired - Fee Related CN104338439B (en) | 2013-07-25 | 2013-07-25 | Ro membrane filter core structure |
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| Country | Link |
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| CN (1) | CN104338439B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860419B (en) * | 2015-05-14 | 2017-01-25 | 中山市柠檬环境科技有限公司 | Kettle type water purifier and water purifier system |
| CN105854607B (en) * | 2016-04-21 | 2019-01-29 | 中山市绿牌知识产权代理有限公司 | Water passage more than quick docking three-way RO membrane filter |
| CN108310840A (en) * | 2017-01-16 | 2018-07-24 | 佛山市顺德区美的饮水机制造有限公司 | Element kit and water purifier with it |
| CN106904691A (en) * | 2017-03-30 | 2017-06-30 | 浙江绿龙新材料有限公司 | A kind of household reverse osmosis purifier |
| CN109694138B (en) * | 2017-10-20 | 2021-11-09 | 九阳股份有限公司 | Reverse osmosis composite filter element assembly |
| CN108355495B (en) * | 2018-04-19 | 2024-07-02 | 广州沃刻科技有限公司 | RO membrane filter core with regulating valve |
| CN110394060A (en) * | 2018-04-24 | 2019-11-01 | 新余净天使环保科技有限公司 | A RO membrane connection cover |
| CN108619782A (en) * | 2018-06-07 | 2018-10-09 | 中山市杰尼克林电器研发有限公司 | A kind of filtering flask |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203400633U (en) * | 2013-07-25 | 2014-01-22 | 珠海格力电器股份有限公司 | Ro membrane filter core structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4402828A (en) * | 1982-06-14 | 1983-09-06 | Edens Jeffrey I | Pressure filter vessel |
| CN201337886Y (en) * | 2008-12-30 | 2009-11-04 | 苏州立升净水科技有限公司 | Purifier with inlet and outlet on the same side and filtering equipment comprising same |
| CN202823173U (en) * | 2012-09-25 | 2013-03-27 | 美的集团股份有限公司 | RO membrane filter core structure convenient to disassemble and assemble |
| CN202893201U (en) * | 2012-12-03 | 2013-04-24 | 吴家仪 | Reverse osmosis membrane shell |
| CN202983518U (en) * | 2012-12-17 | 2013-06-12 | 沁园集团股份有限公司 | Filter core with three paths of waterways |
-
2013
- 2013-07-25 CN CN201310317169.5A patent/CN104338439B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203400633U (en) * | 2013-07-25 | 2014-01-22 | 珠海格力电器股份有限公司 | Ro membrane filter core structure |
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