CN110508143A - M type coiled reverse osmosis membrane element and preparation method thereof and water purification system - Google Patents
M type coiled reverse osmosis membrane element and preparation method thereof and water purification system Download PDFInfo
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- CN110508143A CN110508143A CN201910894338.9A CN201910894338A CN110508143A CN 110508143 A CN110508143 A CN 110508143A CN 201910894338 A CN201910894338 A CN 201910894338A CN 110508143 A CN110508143 A CN 110508143A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
- B01D63/061—Manufacturing thereof
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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Abstract
The present invention relates to a kind of M type coiled reverse osmosis membrane element and preparation method thereof and water purification systems, wherein M type coiled reverse osmosis membrane element includes concentrated water pipe and reverse osmosis membrane, reverse osmosis membrane is folding, form the front interlayer and reverse side interlayer being arranged alternately, front interlayer is inserted with into water filter, the opening of front interlayer is towards concentrated water pipe, the long side of raw water runner is that part seals, one end in long side far from concentrated water pipe forms original water inlet, reverse side interlayer is inserted with pure water flow-guiding cloth, reverse side interlayer is all connected with corresponding pure water flow-guiding cloth two long edge positions, form the pure water runner that pure water outlet is located at lateral surface, pure water flow-guiding cloth, water inlet filter and it is folding after reverse osmosis membrane roll on concentrated water pipe.What raw water flowed through during water processed is long side, and water efficiency processed is higher.It is higher close to concentrated water at concentrated water pipe and pure water flow velocity, concentrated water side concentration polarization phenomenon is effectively relieved, also improves and presses big problem close to pure water side back at concentrated water pipe, prolong the service life.
Description
Technical field
The present invention relates to water purification fields, more particularly to a kind of M type coiled reverse osmosis membrane element and preparation method thereof and only
Water system.
Background technique
Coiled reverse osmosis membrane element mainly passes through the pure water flow-guiding cloth that will be stacked gradually, reverse osmosis membrane and water inlet filter volume
System obtains on the water producing pipe of center.Raw water in use process by being formed between the front of reverse osmosis membrane and water inlet filter
Press in runner so that the hydrone in raw water runner penetrates into the reverse side of reverse osmosis membrane, reverse osmosis membrane reverse side with
Assemble in the pure water runner that the pure water flow-guiding cloth is formed, is finally conveyed to user's use.But general coiled reverse osmosis membrane
The concentrated water side concentration polarization of the raw water runner of element is serious, and membrane component service life is shorter.
Summary of the invention
Based on this, it is necessary to a kind of M type coiled reverse osmosis membrane element and preparation method thereof and water purification system are provided, with effective
Alleviate concentrated water side concentration polarization phenomenon, prolongs the service life.
A kind of M type coiled reverse osmosis membrane element, including concentrated water pipe and reverse osmosis membrane, the reverse osmosis membrane are rolled over repeatedly
It is folded, the front interlayer and reverse side interlayer being arranged alternately are formed, the front interlayer is inserted with into water filter, raw water runner is formed,
The opening of the front interlayer is towards the concentrated water pipe, and the opening is connected to the concentrated water pipe, the length of the raw water runner
Side is part sealing and one end in the long side far from the concentrated water pipe forms original water inlet, and the reverse side interlayer is inserted with
Pure water flow-guiding cloth, the reverse side interlayer are all connected with the corresponding pure water flow-guiding cloth two long edge positions, form pure water outlet
Positioned at the pure water runner of lateral surface, be equipped with outer layer flow-guiding cloth in the outer layer of outermost front interlayer, the outer layer flow-guiding cloth with
Opposite reverse side is all connected at two long sides and short side, forms the pure water runner, separate pure water on the outer layer flow-guiding cloth
The short side of outlet is connect with the concentrated water pipe, the outer layer flow-guiding cloth, the pure water flow-guiding cloth, water inlet filter and it is folding after
Reverse osmosis membrane roll on the concentrated water pipe.
Above scheme provides a kind of M type coiled reverse osmosis membrane element, in the front interlayer and reverse side of folding formation
It is plugged respectively in interlayer into water filter and pure water flow-guiding cloth, to form raw water runner and pure water runner.And the front interlayer
Opening towards the concentrated water pipe, the long side part of the raw water runner be sealed in far from the concentrated water pipe one end formed raw water
Import.During water processed, what raw water flowed through is long side, and water efficiency processed is higher, and opposite using short side as the side of filtration path
Formula, raw water flow velocity in raw water runner is higher in this case.And form the pure water flow-guiding cloth and reverse side folder of the pure water runner
It between layer, is all connected in two long sides and close to the short side of the concentrated water pipe, forms the stream of pure water that pure water outlet is located at lateral surface
Road.To roll the concentrated water Guan Shanghou when the pure water flow-guiding cloth, reverse osmosis membrane and water inlet filter, close to concentrated water pipe
Water flow velocity in raw water runner and pure water runner is higher, and concentrated water side concentration polarization phenomenon is on the one hand effectively relieved, on the other hand
The position pure water side back improved close to concentrated water pipe presses big problem, and then prolongs the service life.
Exceed corresponding institute close to one end of the concentrated water pipe on the water inlet filter in one of the embodiments,
Front interlayer is stated, and the water inlet filter is not less than 0.5cm beyond the distance of the front interlayer.
Distance of the water inlet filter beyond the front interlayer is 0.5cm~3cm in one of the embodiments,.
One end on the pure water flow-guiding cloth far from the concentrated water pipe is beyond corresponding in one of the embodiments,
The reverse side interlayer, and the pure water flow-guiding cloth is not less than 0.5cm beyond the distance of the reverse side interlayer.
Distance of the pure water flow-guiding cloth beyond the reverse side interlayer is 0.5cm~3cm in one of the embodiments,.
The front interlayer and reverse side interlayer being arranged alternately from outside to inside in one of the embodiments, are far from the concentrated water
The direction of pipe shifts to install.
Being located relatively at outside in adjacent front interlayer and reverse side interlayer in one of the embodiments, is outer layer folder
Layer, another is interior layer interlayer, and the interior layer interlayer misplaces relative to the outer layer interlayer along the direction far from the concentrated water pipe
Distance be L, a length of D in periphery of the concentrated water pipe, the interior layer interlayer and the outer layer interlayer total number are n, then L=D/n.
A kind of water purification system, including above-mentioned M type coiled reverse osmosis membrane element.
Above scheme provides a kind of water purification system, by the way that institute in any of the above-described embodiment is arranged in the water purification system
The M type coiled reverse osmosis membrane element stated, raw water is advanced along long side in raw water runner, and flow velocity is higher, and in the position close to concentrated water pipe
It is higher to set tangential flow velocity, so that concentrated water side concentration polarization phenomenon be effectively relieved, prolongs the service life.
A kind of M type coiled reverse osmosis membrane element production method, comprising the following steps:
Reverse osmosis membrane is folding, form the front interlayer and reverse side interlayer being arranged alternately；
Water inlet filter is plugged in the front interlayer, pure water flow-guiding cloth is plugged in reverse side interlayer；
It is glued between the long side and the pure water flow-guiding cloth of the reverse side interlayer, forms pure water runner, and the pure water
The pure water outlet of runner is located remotely from one end of the flanging of the reverse side interlayer；
Short side on outermost pure water flow-guiding cloth far from the pure water outlet is connect with concentrated water pipe, it will be anti-after stickup
Infiltration diaphragm, water inlet filter and pure water flow-guiding cloth roll on the concentrated water pipe；
The end face of water inlet filter and front interlayer after rolling is glued, so that the long side part of the front interlayer is close
Envelope, and size application site is close to the position of the concentrated water pipe, to form raw water close to the position of lateral surface on the end surface
Import.
Above scheme provides a kind of M type coiled reverse osmosis membrane element production method, first repeatedly by the reverse osmosis membrane
It folds, forms the front interlayer and reverse side interlayer being arranged alternately, thus further insertion water inlet filter, reverse side in the interlayer of front
Pure water flow-guiding cloth is inserted into interlayer.And be glued between the pure water flow-guiding cloth and the reverse side interlayer, so that the stream of pure water
The pure water runner that pure water outlet is located remotely from the reverse side interlayer flanging is formed between road and the reverse side interlayer.And after rolling,
It is glued in end face, to form original water inlet in the position close to lateral surface.To raw water walking path during the filtration process
For long side, water processed is high-efficient, and raw water and pure water flow velocity are higher, especially higher in the tangential flow velocity in position close to concentrated water pipe,
Both concentrated water side concentration polarization phenomenon had been alleviated, has also solved the problems, such as that concentrated water pipe back pressure is big, has extended to use and is made with upper type
M type coiled reverse osmosis membrane element service life.
The long edge position of the reverse side interlayer is long side sticky position, institute for the position of sizing in one of the embodiments,
The distance between long side side of long side sticky position and the reverse side interlayer is stated as 1cm~3cm.
The tree lace on the pure water flow-guiding cloth along long side setting is long side tree lace, the length in one of the embodiments,
Side tree lace extends the pure water flow-guiding cloth far from one end of the concentrated water pipe, and the long side tree lace extends the pure water and leads
The length spread is not less than the perimeter for rolling the lateral surface of the formation of pure water flow-guiding cloth described in rear outermost layer.
Detailed description of the invention
Fig. 1 is to roll in concentrated water after reverse osmosis membrane is folding in M type coiled reverse osmosis membrane element described in the present embodiment
Schematic diagram on pipe；
Fig. 2 is M type coiled reverse osmosis membrane element water (flow) direction schematic diagram described in the present embodiment；
Structural schematic diagram when Fig. 3 is M type coiled reverse osmosis membrane element unfolded state described in the present embodiment；
Main view when Fig. 4 is M type coiled reverse osmosis membrane element unfolded state described in Fig. 3；
Fig. 5 is the flow chart of M type coiled reverse osmosis membrane element production method described in the present embodiment.
Description of symbols:
10, M type coiled reverse osmosis membrane element；11, concentrated water pipe；111, water hole；12, reverse osmosis membrane；121, front folder
Layer；122, reverse side interlayer；13, water inlet filter；131, raw water runner；1311, original water inlet；14, pure water flow-guiding cloth；141, pure water
Runner；1411, pure water outlet；15, lateral surface；16, end face.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Each technical characteristic of embodiment described above can carry out arbitrarily
Combination, for simplicity of description, it is not all possible to each technical characteristic in above-described embodiment combination be all described, so
And as long as there is no contradiction in the combination of these technical features, it all should be considered as described in this specification.
As shown in Figures 1 to 4, a kind of M type coiled reverse osmosis membrane element 10, including concentrated water are provided in one embodiment
Pipe 11 and reverse osmosis membrane 12.The reverse osmosis membrane 12 is folding, forms the front interlayer 121 being arranged alternately and reverse side folder
Layer 122.The front interlayer 121 is inserted with into water filter 13, forms raw water runner 131, the opening court of the front interlayer 121
To the concentrated water pipe 11, and the opening is connected to the concentrated water pipe 11.The long side of the raw water runner 131 be part sealing and
One end in the long side far from the concentrated water pipe 11 forms original water inlet 1311.
During water processed, it is long side that raw water, which flows through path, and water efficiency processed is higher.And it is opposite using short side as filtration path
Mode, in the case where flow is certain, raw water flow velocity in raw water runner 131 is higher in this case, also delays to a certain extent
Solve concentration polarization phenomenon.
The reverse side interlayer 122 is inserted with pure water flow-guiding cloth 14, and the reverse side interlayer 122 is the same as the corresponding pure water water conservancy diversion
Cloth 14 is all connected with two long edge positions, is formed pure water outlet 1411 and is located at the pure water runner 141 of lateral surface 15, it is outermost just
The outer layer of face interlayer is equipped with outer layer flow-guiding cloth, and the outer layer flow-guiding cloth connects at two long sides and short side with opposite reverse side
It connects, forms the pure water runner, the short side far from pure water outlet is connect with the concentrated water pipe on the outer layer flow-guiding cloth.It is described outer
Layer flow-guiding cloth, the pure water flow-guiding cloth 14, water inlet filter 13 and it is folding after reverse osmosis membrane 12 roll in the concentrated water
On pipe 11.
To be rolled on the concentrated water pipe 11 when the pure water flow-guiding cloth 14, reverse osmosis membrane 12 and water inlet filter 13
Afterwards, the concentrated water formed during water processed converges in the concentrated water pipe 11, and pure water then passes through the spiral in the pure water runner 141
Flowing is discharged from lateral surface 15.Water flow velocity in the raw water runner 131 and pure water runner 141 close to concentrated water pipe 11 is higher, and one
Concentrated water side concentration polarization phenomenon is effectively relieved in aspect, on the other hand also improves close to reverse osmosis described in the position of the concentrated water pipe 11
The pure water side back of permeable membrane piece 12 presses big problem, and then prolongs the service life.
Moreover, forming stream of pure water with the pure water flow-guiding cloth 14 later by the reverse side interlayer 122 of folding formation
When road 141, one side paste process is more preferably easy, and the leakproofness of another aspect pure water runner 141 is more preferably reliable.Specifically, In
When forming pure water runner 141, it is only used in sizing in two long sides between reverse side interlayer 122 and pure water flow-guiding cloth 14 and connects i.e.
It can, it is not necessary to be glued on short side again, so that sealing reliability is higher.
The front of reverse osmosis membrane 12 described herein refers to the one side that hydrone can be permeable under hyperbaric environment,
Opposite formed in front is the front interlayer 121 after folding.Correspondingly, the another side of the reverse osmosis membrane 12 is then anti-
Face, opposite formed of reverse side is reverse side interlayer 122 after folding.
Lateral surface 15 described herein refers to filter volume 13 of the pure water flow-guiding cloth 14, reverse osmosis membrane 12 and water inlet
After system is on the concentrated water pipe 11, the lateral surface 15 of the pure water flow-guiding cloth 14, reverse osmosis membrane 12 and the water inlet formation of filter 13.
Short side described herein refers to along the side of the concentrated water pipe 11 being axially distributed, and long side is then circumferentially helical coil
The side of water flow direction of advance distribution when side on the concentrated water pipe 11, i.e. long side are along water processed.In general, reverse osmosis membrane
12, after pure water flow-guiding cloth 14 and water inlet filter 13 roll multi-turn on concentrated water pipe 11, the long side is greater than short side, so raw water edge
The water efficiency processed of the forward filtering of long side is higher.
Further, for mitigate roll when glue spilling the case where, can two long edge positions apart from long side side 1cm~
The place sizing of 3cm.
Further, in one embodiment, as shown in Figure 3 and Figure 4, close to the concentrated water pipe on the water inlet filter 13
11 one end exceeds the corresponding front interlayer 121, and the water inlet filter 13 beyond the front interlayer 121 away from
From not less than 0.5cm.
The part beyond the front interlayer 121 is then contacted with the concentrated water pipe 11 on the water inlet filter 13, preferably
Concentrated water in the raw water runner 131 is imported in the concentrated water pipe 11, is avoided in the local concentrated water close to the concentrated water pipe 11
The case where circulating unsmooth, leading to fouling generation.
Further, in one embodiment, the distance of the water inlet filter 13 beyond the front interlayer 121 is
0.5cm~3cm.To both ensure the smoothness of concentrated water side concentrated water flowing, also avoid certain in 12 length of reverse osmosis membrane
In the case where reduce 131 length of raw water runner the case where occur, or for ensure 131 length of raw water runner reach certain value, and
The excessive situation of entire M type 10 volumes of coiled reverse osmosis membrane element occurs.
Further, in one embodiment, one end on the pure water flow-guiding cloth 14 far from the concentrated water pipe 11 exceeds
The corresponding reverse side interlayer 122, and the pure water flow-guiding cloth 14 is not less than beyond the distance of the reverse side interlayer 122
0.5cm.To guarantee that the pure water outlet 1411 after rolling in outer side 15 always in opening-wide state, improves water efficiency processed.
Further, in one embodiment, distance of the pure water flow-guiding cloth 14 beyond the reverse side interlayer 122 is
0.5cm~3cm.Similarly, both ensured that pure water outlet 1411 in opening-wide state, also avoided the M type rolling reverse osmosis always
The excessive situation of 10 volume of membrane element occurs.
Further, in one embodiment, the front interlayer 121 and reverse side interlayer 122 being arranged alternately from outside to inside exist
Direction far from the concentrated water pipe 11 shifts to install.
To when the reverse osmosis membrane 12 rolls on concentrated water pipe 11 after, as shown in Figure 1, each raw water runner 131 and
The opposite opening of concentrated water pipe 11 is distributed in the circumferential direction of concentrated water pipe 11, although that is, each raw water runner 131 and pure water runner 141 are equal
It is formed by the reverse osmosis membrane 12 folding, but by way of shifting to install above, can ensured between each runner
It can be effectively connected to concentrated water pipe 11.
Specifically, in one embodiment, outside is located relatively in adjacent front interlayer 121 and reverse side interlayer 122
For outer layer interlayer, another is interior layer interlayer.The interior layer interlayer is relative to the outer layer interlayer along far from the concentrated water pipe 11
Direction dislocation distance be L, a length of D in periphery of the concentrated water pipe 11, the interior layer interlayer and the outer layer interlayer total number
For n, then L=D/n.
In this way, each raw water runner 131 opening opposite with concentrated water pipe 11 can uniformly divide in the circumferential direction of concentrated water pipe 11
Cloth ensures the circulation of each raw water runner 131, also further alleviates concentration polarization phenomenon to a certain extent.
And can be connected to concentrated water pipe 11 to further ensure that each raw water runner 131, it can be in the concentrated water
Water hole 111 is set on pipe 11, and can set multiple for water hole 111, circumferential direction of multiple water holes 111 in concentrated water pipe 11
Upper distribution, so that it is guaranteed that each raw water runner 131 can be connected to by the water hole 111 with concentrated water pipe 11.
Further, diversion trench can also be set on the outer peripheral surface of the concentrated water pipe 11, enables raw water runner 131
It is connected to by the diversion trench with water hole 111, improves the reliability of circulation.
Further, another embodiment provides a kind of water purification systems, reverse osmosis including above-mentioned M type rolling
Membrane component 10.
By the way that any of the above-described M type coiled reverse osmosis membrane element 10 as described in the examples is arranged in the water purification system,
Raw water is advanced along long side in raw water runner 131, and flow velocity is higher, and higher in the tangential flow velocity in position close to concentrated water pipe 11, thus
Concentrated water side concentration polarization phenomenon is effectively relieved, prolongs the service life.
Further, as shown in figure 5, providing a kind of M type coiled reverse osmosis membrane element production In yet another embodiment
Method, comprising the following steps:
Reverse osmosis membrane 12 is folding, form the front interlayer 121 and reverse side interlayer 122 being arranged alternately；
Water inlet filter 13 is plugged in the front interlayer 121, pure water flow-guiding cloth 14 is plugged into reverse side interlayer 122
In；
It is glued between the long side and the pure water flow-guiding cloth 14 of the reverse side interlayer 122, forms pure water runner 141, and
Shown in as shown in Figure 1, Figure 3 and Figure 4, the pure water outlet 1411 of the pure water runner 141 is located remotely from the flanging of the reverse side interlayer 122
One end；
Short side on outermost pure water flow-guiding cloth 14 far from the pure water outlet 1411 is connect with concentrated water pipe 11, is such as schemed
Shown in 1, reverse osmosis membrane 12, water inlet filter 13 and the pure water flow-guiding cloth 14 after stickup are rolled on the concentrated water pipe 11；
The end face 16 of water inlet filter 13 and front interlayer 121 after rolling is glued, so that the length of the front interlayer 121
Rim portion sealing, and size application site is close to the position of the concentrated water pipe 11, thus close to lateral surface 15 on the end face 16
Position formed original water inlet 1311.
Reverse osmosis membrane 12 described herein is folding, refer to equally folded similar to folding fan formed it is described front folder
Layer 121 and reverse side interlayer 122.Opposite formed is front interlayer 121 in reverse osmosis membrane 12 front, and opposite formed of reverse side is anti-
Face interlayer 122.
It is first that the reverse osmosis membrane 12 is folding, the front interlayer 121 and reverse side interlayer 122 being arranged alternately are formed,
To further be inserted into water inlet filter 13 in front interlayer 121, pure water flow-guiding cloth 14 is inserted into reverse side interlayer 122.And institute
It states and is glued between pure water flow-guiding cloth 14 and the reverse side interlayer 122, so that the pure water runner 141 and the reverse side interlayer 122
Between form pure water outlet 1411 and be located remotely from the pure water runner 141 of 122 flanging of reverse side interlayer.And after rolling, in end face
16 sizings, to form original water inlet 1311 in the position close to lateral surface 15.Raw water walking path is during the filtration process
Long side, water processed is high-efficient, and raw water and pure water flow velocity are higher, especially higher in the tangential flow velocity in position close to concentrated water pipe 11,
Both concentrated water side concentration polarization phenomenon had been alleviated, has also solved the pure water side of reverse osmosis membrane 12 described in the position of close concentrated water pipe 11
The big problem of back pressure is extended and is used with the service life of the M type coiled reverse osmosis membrane element 10 of upper type production.
End face 16 described herein refers to that the reverse osmosis membrane 12, water inlet filter 13 and pure water flow-guiding cloth 14 roll institute
The end face 16 of the tubular structure formed after stating on concentrated water pipe 11.As shown in Fig. 2, by being glued in end face 16, close to lateral surface
15 position forms original water inlet 1311.
Further, in one embodiment, the long edge position of the reverse side interlayer 122 is viscous for long side for the position of sizing
Position is pasted, the distance between the long side sticky position and the long side side of the reverse side interlayer 122 are 1cm~3cm.
As discussed above described in M type coiled reverse osmosis membrane element 10, it can so mitigate glue spilling when rolling after adhesion
The case where.
And the front based on reverse osmosis membrane 12 is not easy using viscose glue mode, therefore the sealing of raw water runner 131 be then
It is glued and seals in end face 16 after rolling.It is coated and is sealed by viscose glue, or sealing is implemented in combination with by viscose glue and end cover.
Further, in one embodiment, the tree lace on the pure water flow-guiding cloth 14 along long side setting is long side tree lace,
The long side tree lace extends the pure water flow-guiding cloth 14 far from one end of the concentrated water pipe 11, and the long side tree lace extends
The length of the pure water flow-guiding cloth 14 is not less than the perimeter for rolling the lateral surface 15 of the formation of pure water flow-guiding cloth 14 described in rear outermost layer.
It can also turn around along lateral surface 15 to roll the rear long side tree lace, further increase the reliability of sealing.
After folding, roll when on the concentrated water pipe 11, being located at outermost is front interlayer 121, and
The outside of front interlayer 121 has outer layer flow-guiding cloth, i.e., connects between the outside and outer layer flow-guiding cloth of outermost front interlayer 121
It connects to form pure water runner 141.What it is positioned at innermost layer may be front interlayer 121, similarly be arranged in the inside of front interlayer 121
Pure water flow-guiding cloth 14 forms pure water runner 141.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (11)
1. a kind of M type coiled reverse osmosis membrane element, which is characterized in that including concentrated water pipe and reverse osmosis membrane, the reverse osmosis membrane
Piece is folding, forms the front interlayer and reverse side interlayer being arranged alternately, and the front interlayer is inserted with into water filter, is formed former
Water flow passage, the opening of the front interlayer is towards the concentrated water pipe, and the opening is connected to the concentrated water pipe, the raw water stream
The long side in road is part sealing and one end in the long side far from the concentrated water pipe forms original water inlet, the reverse side interlayer
It is inserted with pure water flow-guiding cloth, the reverse side interlayer is all connected with the corresponding pure water flow-guiding cloth two long edge positions, is formed pure
Water out is located at the pure water runner of lateral surface, is equipped with outer layer flow-guiding cloth in the outer layer of outermost front interlayer, the outer layer is led
It spreads and is all connected at two long sides and short side with opposite reverse side, form the pure water runner, it is remote on the outer layer flow-guiding cloth
It is connect from the short side of pure water outlet with the concentrated water pipe, the outer layer flow-guiding cloth, the pure water flow-guiding cloth, water inlet filter and repeatedly
Folded reverse osmosis membrane rolls on the concentrated water pipe.
2. M type coiled reverse osmosis membrane element according to claim 1, which is characterized in that close to institute on the water inlet filter
One end of concentrated water pipe is stated beyond the corresponding front interlayer, and the water inlet filter exceeds the distance of the front interlayer
Not less than 0.5cm.
3. M type coiled reverse osmosis membrane element according to claim 2, which is characterized in that the water inlet filter is beyond described
The distance of front interlayer is 0.5cm~3cm.
4. M type coiled reverse osmosis membrane element according to claim 1, which is characterized in that separate on the pure water flow-guiding cloth
One end of the concentrated water pipe exceeds the corresponding reverse side interlayer, and the pure water flow-guiding cloth is beyond the reverse side interlayer
Distance is not less than 0.5cm.
5. M type coiled reverse osmosis membrane element according to claim 4, which is characterized in that the pure water flow-guiding cloth exceeds institute
The distance for stating reverse side interlayer is 0.5cm~3cm.
6. M type coiled reverse osmosis membrane element according to any one of claims 1 to 5, which is characterized in that replace from outside to inside
The front interlayer of arrangement is shifted to install with reverse side interlayer in the direction far from the concentrated water pipe.
7. M type coiled reverse osmosis membrane element according to claim 6, which is characterized in that adjacent front interlayer and reverse side
It is outer layer interlayer that outside is located relatively in interlayer, another is interior layer interlayer, and the interior layer interlayer is pressed from both sides relative to the outer layer
Layer is L, a length of D in periphery of the concentrated water pipe, the interior layer interlayer and institute along the distance that the direction far from the concentrated water pipe misplaces
Stating outer layer interlayer total number is n, then L=D/n.
8. a kind of water purification system, which is characterized in that including the described in any item M type coiled reverse osmosis membrane members of claim 1 to 7
Part.
9. a kind of M type coiled reverse osmosis membrane element production method, which comprises the following steps:
Reverse osmosis membrane is folding, form the front interlayer and reverse side interlayer being arranged alternately；
Water inlet filter is plugged in the front interlayer, pure water flow-guiding cloth is plugged in reverse side interlayer；
It is glued between the long side and the pure water flow-guiding cloth of the reverse side interlayer, forms pure water runner, and the pure water runner
Pure water outlet be located remotely from the reverse side interlayer flanging one end；
Short side on outermost pure water flow-guiding cloth far from the pure water outlet is connect with concentrated water pipe, it will be reverse osmosis after stickup
Diaphragm, water inlet filter and pure water flow-guiding cloth roll on the concentrated water pipe；
The end face of water inlet filter and front interlayer after rolling is glued, so that the long side part of the front interlayer seals, and
Size application site is close to the position of the concentrated water pipe, to form original water inlet close to the position of lateral surface on the end surface.
10. M type coiled reverse osmosis membrane element production method according to claim 9, which is characterized in that the reverse side interlayer
Long edge position for sizing position be long side sticky position, between the long side sticky position and the long side side of the reverse side interlayer
Distance be 1cm~3cm.
11. M type coiled reverse osmosis membrane element production method according to claim 9, which is characterized in that the pure water water conservancy diversion
Tree lace on cloth along long side setting is long side tree lace, and the long side tree lace extends the pure water far from one end of the concentrated water pipe
Flow-guiding cloth, and the long side tree lace extends the length of the pure water flow-guiding cloth not less than rolling pure water water conservancy diversion described in rear outermost layer
The perimeter for the lateral surface that cloth is formed.
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