CN207342508U - The reverse osmosis element kit of lateral flow type - Google Patents
The reverse osmosis element kit of lateral flow type Download PDFInfo
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- CN207342508U CN207342508U CN201720714156.5U CN201720714156U CN207342508U CN 207342508 U CN207342508 U CN 207342508U CN 201720714156 U CN201720714156 U CN 201720714156U CN 207342508 U CN207342508 U CN 207342508U
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Abstract
The utility model discloses a kind of reverse osmosis element kit of lateral flow type, including shell and reverse osmosis filter core, reverse osmosis filter core includes pure water water guide layer and raw water water guide layer, pure water water guide layer is sealed between two layers of membrane component, raw water water guide layer is intervally arranged with pure water water guide layer, there is raw water inlet on the reverse osmosis element kit of lateral flow type, pure water water outlet and concentrated water water outlet, at least partly close at the both ends of reverse osmosis filter core, raw water is flowed along raw water water guide helical layer shape, the radial thickness of the influent side of raw water water guide layer is more than the radial thickness of the water outlet side of raw water water guide layer.On the one hand, the influent side discharge area of raw water water guide layer becomes larger, advantageously reduce the water resistance of element kit internal watercourses, ensure the enough production water pressures of raw water water guide layer water outlet side, on the other hand, the water amount of raw water water guide laminar flow road influent side is greater than the water amount of raw water water guide laminar flow road water outlet side, and said structure is conducive to the flow velocity for keeping raw water water guide layer water outlet side enough, avoids the formation of fouling.
Description
Technical field
A kind of reverse osmosis element kit of lateral flow type is the utility model is related to, belongs to water-treatment technology field.
Background technology
With the raising that people require for drinking water quality, pure water system is just progressing into the drinking-water system of every household
In.Water purifier currently on the market generally can all use reverse osmosis element kit, and reverse osmosis element kit can be in raw water
The impurity such as organic matter, colloid, bacterium, virus are filtered, and especially have high mistake to impurity such as inorganic salts, heavy metal ion
Filter efficiency.Thus reverse osmosis element kit constitutes the core component of water purifier, the filter effect of water purifier and reverse osmosis filter core
The filter effect of component is directly related.
The structure of reverse osmosis element kit can be diversified, but in reverse osmosis element kit all can use arrive
Membrane component and central tube.In most of existing product, all it is wrapped on central tube and is formed only with a central tube, membrane component
Reverse osmosis filter core, during filtering, raw water is intake from reverse osmosis filter core end, and along the axial movement of reverse osmosis filter core, will be filtered
To in central tube, concentrated water then flows out pure water collection afterwards from another end of reverse osmosis filter core.The reverse osmosis filter of this structure
The problem of core assembly inflow is low, and water flow passage processed is short, and the holdup time that raw water is contacted with the surface of membrane component is short, therefore, relatively
In the raw water influx for being flowed into reverse osmosis membrane filter element component, pass through pure water water outlet after being purified by reverse osmosis membrane filter element component
The pure water amount of discharge is relatively low, and water resource waste is serious.Also unstable there are internal pressure at the same time, salt rejection rate is low, membrane component
Cannot be fully utilized, membrane component using region it is unbalanced a series of problems, such as.
And these problems are directed to, also someone makes reverse osmosis element kit optimization and proposes the reverse osmosis filter core of lateral flow type
Component, the water flow process of the reverse osmosis element kit of general lateral flow type be raw water from the central area of reverse osmosis filter core end into
Enter, and spirally outwards flowed from along peripheral containment corresponding region.But since raw water water guide laminar flow road is longer, and spiral shell
It is larger to revolve the water resistance of shape runner, it is obvious to result in the water outlet side pressure drop of raw water water guide layer, and producing water ratio declines, on the other hand, raw water
The influent side discharge area of water guide layer is smaller, further increases the pressure drop in water route in element kit.Also, due to being led in raw water
The relation of pure water is produced in water layer runner, the water amount of raw water water guide laminar flow road influent side is greater than raw water water guide laminar flow road water outlet
The water amount of side, then, not only so that the pressure of raw water water guide layer water outlet side decreases, but also flow velocity can also reduce, and hold
Easily in membrane component surface scale.
Utility model content
Low for the above-mentioned reverse osmosis element kit inflow for axially crossing water, water flow passage processed is short, the table of raw water and membrane component
The holdup time of face contact is short and the reverse osmosis element kit of existing lateral flow type inside water resistance it is larger, raw water water guide layer water outlet side
The problems such as it is low to produce water efficiency, easily forms incrustation scale, the utility model provides a kind of reverse osmosis element kit of lateral flow type, including outer
Shell and the reverse osmosis filter core in shell, have first to cross water space, the reverse osmosis between the reverse osmosis filter core and shell
Filter core includes pure water water guide layer and raw water water guide layer, and the pure water water guide layer is sealed between two layers of membrane component, the original
Water water guide layer is intervally arranged with pure water water guide layer, on the reverse osmosis element kit of lateral flow type there is raw water inlet, pure water to go out
The mouth of a river and concentrated water water outlet, it is characterised in that the both ends of the reverse osmosis filter core are at least partly closed, and raw water is along raw water water guide
Helical layer shape flows, and the radial direction that the radial thickness of the influent side of the raw water water guide layer is more than the water outlet side of raw water water guide layer is thick
Degree.
Further, the raw water water guide layer includes first-class section close to influent side and the second close to water outlet side
Section, described first-class section uniform with the radial thickness of second section, and described first-class section of radial thickness is more than second
The radial thickness of section.
Further, it is equipped with raw water filter in the raw water water guide layer, the number of plies of the raw water filter in described first-class section
More than the number of plies of the raw water filter in second section；Alternatively, it is equipped with raw water filter, the raw water filter in the raw water water guide layer
It is more than thickness of the raw water filter in second section correspondence position in the thickness of first-class section of correspondence position.
Further, the radial thickness of the raw water water guide layer is gradually thinning from influent side to water outlet side.
Further, be equipped with raw water filter in the raw water water guide layer, the raw water filter from influent side to water outlet side by
Gradual change is thin.
Further, the radial thickness of the influent side of the raw water water guide layer is thick for the radial direction of the water outlet side of raw water water guide layer
1.5 ~ 3 times of degree.
Further, the both ends of the reverse osmosis filter core included water portion and closure respectively, and the closing portion is in mistake
The periphery in water portion, the water section of crossing do not communicate with raw water water guide layer；Alternatively, the reverse osmosis filter core is closed at both ends, it is described
The center inner wall of reverse osmosis filter core crosses water section and second with axially distributed first and crosses water section, and described first crosses water Duan Yuchun
Water water guide layer communicates, and described second crosses water section communicates with raw water water guide layer.
Further, the center of the reverse osmosis filter core is equipped with first passage and second channel, the raw water water guide layer
Both sides are crossed water space with first passage, first respectively and are communicated, the second channel connection pure water water guide layer and pure water water outlet.
Further, the center of the reverse osmosis filter core is equipped with the first central tube and be nested in the first central tube second
Central tube, the Inner Constitution first passage of second central tube, the gap between first central tube and the second central tube
Form second channel；Alternatively, the center of the reverse osmosis filter core is equipped with the first central tube and parallel with the first central tube second
Central tube, one end closing of first central tube, the Inner Constitution first passage of first central tube, second center
The Inner Constitution second channel of pipe.
Further, the influent side of the raw water water guide layer is located at the central area of reverse osmosis filter core, the raw water water guide
The water outlet side of layer is located at the side wall of reverse osmosis filter core；Alternatively, the water outlet side of the raw water water guide layer is located in reverse osmosis filter core
Heart district domain, the influent side of the raw water water guide layer are located at the side wall of reverse osmosis filter core.
In the utility model, the radial thickness of the influent side of raw water water guide layer is more than the radial direction of the water outlet side of raw water water guide layer
Thickness, on the one hand, the influent side discharge area of raw water water guide layer becomes larger, and advantageously reduces the water resistance of element kit internal watercourses,
Ensure the enough production water pressures of raw water water guide layer water outlet side, on the other hand, due to producing pure water in raw water water guide laminar flow road
Relation, the water amount of raw water water guide laminar flow road influent side are greater than the water amount of raw water water guide laminar flow road water outlet side, above-mentioned knot
Structure is conducive to the flow velocity for keeping raw water water guide layer water outlet side enough, avoids flow velocity from reducing, causes salinity at this to deposit to form fouling.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the Longitudinal cross section schematic of the reverse osmosis element kit of one lateral flow type of the utility model embodiment；
Fig. 2 is the expanded view of reverse osmosis filter core in the utility model；
Fig. 3 is the Longitudinal cross section schematic of the reverse osmosis element kit of two lateral flow type of the utility model embodiment；
Fig. 4 is the partial schematic diagram one of the reverse osmosis element kit of two lateral flow type of the utility model embodiment；
Fig. 5 is the partial schematic diagram two of the reverse osmosis element kit of two lateral flow type of the utility model embodiment；
Fig. 6 is the Longitudinal cross section schematic of the reverse osmosis element kit of three lateral flow type of the utility model embodiment；
Fig. 7 is the Longitudinal cross section schematic of the reverse osmosis element kit of four lateral flow type of the utility model embodiment；
Fig. 8 is that the utility model applies the first state schematic diagram of membrane component and central tube in example four；
Fig. 9 is that the utility model applies the second view of membrane component and central tube in example four.
Embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the case where there is no conflict, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
New to be implemented using other different from other modes described here, therefore, the scope of protection of the utility model is simultaneously
From the limitation of following public specific embodiment.
In the description of the utility model, it is to be understood that " " center ", " on " in term, " under ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right" are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second "
Description purpose is only used for, and it is not intended that instruction or hint relative importance.
As shown in Figure 1 and Figure 2, the reverse osmosis element kit of a kind of lateral flow type, including shell 1 and reverse osmosis in shell 1
Filter core 2, has first to cross water space 31 between reverse osmosis filter core 2 and shell 1.Reverse osmosis filter core 2 includes 21 He of pure water water guide layer
Raw water water guide layer 22, pure water water guide layer 21 are sealed between two layers of membrane component, between raw water water guide layer 22 and pure water water guide layer 21
Every arrangement.There is pure water water outlet 12, concentrated water water outlet 13 and the first original positioned at both ends on the reverse osmosis element kit of lateral flow type
111 and second raw water inlet 112 of water water inlet.The both ends of reverse osmosis filter core 2 are at least partly closed, and raw water is along raw water water guide
22 helical flow of layer.Reverse osmosis element kit raw water in compared with the prior art extends axially through reverse osmosis element kit
Scheme, the reverse osmosis element kit of lateral flow type of the present embodiment have longer water flow passage processed, and raw water is contacted with the surface of membrane component
Time is longer, advantageously reduces waste water ratio, improves the utilization rate of membrane component.
And the reverse osmosis element kit of traditional lateral flow type is since raw water water guide laminar flow road is longer, and the water of screw-shaped flow paths
Hinder larger, it is obvious to result in the water outlet side pressure drop of raw water water guide layer, and producing water ratio declines, on the other hand, the water inlet of raw water water guide layer
Side discharge area is smaller, further increases the pressure drop in water route in element kit.In view of the above-mentioned problems, the effluent of the utility model
In the reverse osmosis element kit of formula, the radial thickness of the influent side of raw water water guide layer 22 is more than the footpath of the water outlet side of raw water water guide layer 22
To thickness, the influent side discharge area of raw water water guide layer is added, avoids the influent side in raw water water guide layer from forming larger pressure
Drop, meanwhile, it is also beneficial to reduce the flow velocity of raw water water guide layer influent side, avoids forming the abutting edge at membrane component edge relatively strong punching
Hit and damage.Importantly, due to the relation of pure water is produced in raw water water guide laminar flow road, raw water water guide laminar flow road influent side
Water amount is greater than the water amount of raw water water guide laminar flow road water outlet side, and said structure is conducive to 22 water outlet side of raw water water guide layer guarantor
Hold enough pressure and flow velocity, on the one hand, ensure that the production water efficiency at this, on the other hand, avoid at this since flow velocity is slow
And inorganic salts precipitation is produced, and then in membrane component surface scale.It should be noted that above-mentioned radial thickness refers to that forming raw water leads
Distance between the adjacent two panels membrane component of water layer diametrically.
Raw water water guide layer 22 includes the second section close to first-class section of influent side and close to water outlet side, first-class section and
The radial thickness of second section is uniform, and first-class section radial thickness be more than second section radial thickness.It is generally, former
Raw water filter is equipped with water water guide layer 22, to support the membrane component of 22 both sides of raw water water guide layer, avoids the resistance salt deposit of membrane component
Even fit at a distance of excessively near and influence the effective area of membrane component.Preferably, the number of plies of the raw water filter in first-class section is more
In the number of plies of the raw water filter in second section.Such as：Two layers of raw water filter be set in first-class section, the raw water in second section
Filter uses one layer；Alternatively, setting three layers of raw water filter in first-class section, the raw water filter in second section uses one layer；Or
Person, one layer of raw water filter is set in first-class section, raw water filter is not provided with second section, herein it should be noted that due to
The front end of second section is continuous membrane component, current by when can nature strut the membrane component of both sides without above-mentioned shadow
The situation of membrane component effective area is rung, in addition, in order to reduce cost, reduces number of components, above-mentioned raw water filter is identical thickness
Degree.Different from the embodiment described above as the another embodiment of raw water filter, raw water filter is in first-class section of correspondence
The thickness of position is more than thickness of the raw water filter in second section correspondence position, that is, is employed as the raw water filter of single piece, and
The thickness that each section of raw water filter is different.
As another embodiment, raw water water guide layer is gradually thinning from influent side to water outlet side so that raw water water guide layer
Each stream section pressure and flow velocity be all effectively controlled, be conducive to the overall efficient utilization of membrane component.Preferably, raw water water guide
Raw water filter is equipped with layer, raw water filter is gradually thinning from influent side to water outlet side.
Based under said structure, preferably, the radial thickness of the influent side of raw water water guide layer is the water outlet of raw water water guide layer
1.5 ~ 3 times of the radial thickness of side.Concrete analysis, if aforementioned proportion is more than 3, on the one hand, the radial thickness of influent side is excessive,
Not only cause influent side insufficient pressure, but also also increase the radial dimension of reverse osmosis filter core, on the other hand, due to influent side and
The runner discharge area difference of water outlet side is larger, it is contemplated that the waste water ratio of reverse osmosis filter core is generally 3:1~1:Between 1, water outlet side
Pressure and flow velocity could possibly be higher than the pressure and flow velocity of influent side on the contrary, be unfavorable for the reasonable utilization of membrane component on the contrary；On if
Ratio is stated less than 1.5, since the runner discharge area of influent side and water outlet side is close, the pressure and flow velocity of water outlet side cannot be bright
It is aobvious to improve, the problems such as still by significantly lower than the pressure and flow velocity of influent side, above-mentioned water outlet side production water efficiency is low, easy fouling according to
So exist.
In the present embodiment, raw water inlet includes the first raw water inlet 111 and the second raw water inlet positioned at both ends
112, wherein, the first raw water inlet 111, pure water water outlet 12 and concentrated water water outlet 13 are located at the same end of shell 1.It is reverse osmosis
The both ends of filter core 2 included water portion 231 and closure 232 respectively, and closure 232 was located at the periphery in water portion 231, crossed water portion
231 communicate with raw water water guide layer 22 respectively.The centrally disposed central tube 4 of reverse osmosis filter core 2, central tube 4 is by being arranged on tube wall
On water hole 40 communicated with pure water water guide layer 21, and 4 one end of central tube is communicated with pure water water outlet 12, and the other end is close to
Two raw water inlets 112 and be blind end.The both ends of reverse osmosis filter core 2 are respectively equipped with 51 the second end cap of box 52 of the first end cap, the
The portions end of one end cap and the reverse osmosis filter core 2 of the second end cap seal, and then form the closure of reverse osmosis 2 end of filter core.Its
In, 51 center of the first end cap has first through hole, and central tube 4 is communicated through first through hole with pure water water outlet 12, and first is logical
The sealed wall 511 that the hole in hole extends along having to 111 direction of the first raw water inlet, 1 respective end of shell, which has, to extend internally
Sealed muscle 14, the sealing of sealed muscle 14 and sealed wall 511 coordinates, and then is isolated with other flow paths, the first raw water inlet 111
Communicated by crossing water portion 231 with raw water water guide layer 22；The outer of second end cap 52 and the inner wall of shell 1 seal against, and avoid
First, which crosses 31 and second raw water inlet 112 of water space, occurs string water, also has the second through hole, the second through hole on the second end cap 52
To connect the water portion and the second raw water inlet 112 excessively of reverse osmosis this one end of filter core.
During specific water processed, raw water is flowed into from the first raw water inlet 111 and the second raw water inlet 112, and point
Water portion 231 is not crossed by both ends, is outwards flowed into raw water water guide layer 22, and along its spiral helicine runner.In raw water stream
During dynamic, progressively produce pure water and collected by pure water water guide layer 21 and water hole 40 to central tube 4, gone out finally by pure water
Flow out at the mouth of a river 12.On the other hand, raw water continues to flow along raw water water guide layer 22, and from reverse osmosis 2 side wall of filter core
Water outlet side flows out to form concentrated water, and concentrated water flows through first and crosses water space 31 and the outflow element kit of concentrated water water outlet 13.The present embodiment
In, the influent side of raw water water guide layer 22 is located at the central area of reverse osmosis filter core 2, and the water outlet side of raw water water guide layer 22 is located at reverse osmosis
The side wall of filter core 2.Certainly, in the case where said structure is constant, opposite water (flow) direction can also be used, specifically, former
The water outlet side of water water guide layer is located at the central area of reverse osmosis filter core, and the influent side of raw water water guide layer is located at the side of reverse osmosis filter core
Wall.
It is as shown in Figure 3-Figure 5, unlike the embodiments above as the embodiment two of the utility model, the present embodiment
In raw water inlet 11a, pure water water outlet 12a and concentrated water water outlet 13a be respectively positioned on the same end of shell 1a, easy to filter core group
The dismounting of part entirety.Specifically, the both ends of reverse osmosis filter core 2a included water portion 231a and closure 232a, closure respectively
232a was located at the periphery of water portion 231a, crosses water portion 231a and is communicated respectively with raw water water guide layer.The center of reverse osmosis filter core 2a is set
Put the first central tube 41a and the second central tube 42a being nested in the first central tube 41a, the lower end of the second central tube 42a and the
The inner wall sealing of one central tube 41a coordinates, alternatively, the first central tube lower end, and the first center are stretched out in the lower end of the second central tube
The sealing of the outer wall of the inner wall of pipe lower end and the second central tube coordinates, wherein the lower end of the second central tube is open.Second center
Pipe 42a's has been internally formed first passage 43a, and second channel is formd between the first central tube 41a and the second central tube 42a
44a.The both sides of raw water water guide layer are crossed water space 31a with first passage 43a, first respectively and are communicated, second channel 44a connection pure water
Water guide layer and pure water water outlet 12a.
In the present embodiment, the both ends of reverse osmosis filter core 2a are equipped with the first end cap 51a and the second end cap 52a, the first end cap 51a
The portions end of reverse osmosis filter core 2a is sealed with the second end cap 52a, and then forms the closure 232a of reverse osmosis filter core 2a ends.
Also, the first end cap 51a and the second end cap 52a are sealed between closure 232a by hot melt adhesive or epoxy resin respectively.
This sealing structure effect is reliable, it is of course also possible in the edge spreading glue of membrane component, is bonded during wound membrane and forms envelope
Closing part.
The central area of second end cap 52a inner surfaces, which has, connected water portion and the water-carrying groove 521a of first passage 43a, into
And raw water water guide layer, excessively water portion, water-carrying groove 521a are connected with first passage 43a.Wherein, water-carrying groove 521a is that outer contour is
Circular groove, raw water import water-carrying groove 521a from after first passage 43a outflows, then enter raw water water guide by crossing water portion
Layer.The other parts of second end cap 52a inner surfaces cooperatively form closure with the end part seal of reverse osmosis filter core 2a.In addition, the
The outer surface of two end cap 52a has bulge-structure corresponding with inner side water-carrying groove 521a, and the bottom wall of shell 1a has corresponding recesses,
The fixation of reverse osmosis filter core 2a lower ends is realized in bulge-structure insertion groove.Alternatively, the center of the second end cap has second
Through hole, cricoid second sealed muscle that the hole of the second through hole extends along having to the bottom of shell, the second sealed muscle and shell
Sealed bottom.
The outer of first end cap 51a and the second end cap 52a have the limit extended vertically to reverse osmosis filter core 2a directions respectively
Position side wall 512a and spacing side wall 522a, spacing side wall 512a and spacing side wall the 522a upper and lower side with reverse osmosis filter core 2a respectively
Lateral wall fix.Current are flowed in raw water water guide layer inner-spiral type, have the trend expanded outwardly for reverse osmosis filter core 2a,
The setting of spacing side wall 512a and spacing side wall 522a, contribute to the upper and lower side tension to reverse osmosis filter core 2a spacing, avoid sending out
Raw expansion deformation.In addition, the outside of spacing side wall 522a can also be with the inner side of shell 1a against being formed to reverse osmosis filter core 2a
It is further spacing.And for spacing side wall 512a, its outside needs to have certain interval with the inner side of shell 1a for crossing water, preferably
, the positioning rib of Longitudinal extending can be set with the outside of spacing side wall 512a, and the inner side of positioning rib and shell 1a were against both
There is positioning action to reverse osmosis filter core 2a, prevent its horizontal vibration, obstruction is not produced to current yet.
In terms of water route inside the reverse osmosis element kit of lateral flow type, the first end cap 51a, which has, supplies first passage 43a and second
Cricoid first sealed muscle that the hole of the through hole 511a that passage 44a passes through, through hole 511a extend along having to mounting head direction
513a.Waterway converter 14a is additionally provided with the intake-outlet of element kit.First sealed muscle 513a and waterway converter 14a
Formed sealing coordinate, and then will cross water portion 231a with first cross water space 31a keep apart, avoid go here and there water.In the present embodiment, water route
Converter 14a has the central flow channel 121a connected with first passage 43a, the side wall of central flow channel 121a and the second central tube
The tube wall sealing of 42a coordinates.Waterway converter 14a has first flow 122a, first flow in the periphery of central flow channel 121a
The sealing of the tube wall of the side wall of 122a and the first central tube 41a coordinates, and then first flow 122a is connected with second channel 44a.Water
There is road converter 14a water cavity 123a, waterway converter 14a and shell 1a sealing to coordinate in the periphery of first flow 122a.
The outer wall of waterway converter 14a and the first sealed muscle 513a sealings coordinate, and waterway converter 14a has connection central flow channel 121a
With section 124a that extends laterally for crossing water cavity 123a, water portion 231a is crossed by crossing water cavity 123a and lateral route extension section 124a and with
Entreat runner 121a connections.Waterway converter 14a has second flow channel 125a, second flow channel 125a in the periphery of central flow channel 121a
Water space 31a is crossed with first to connect.In the Longitudinal extending segment distance of the second flow channel 125a and first flow 122a of the present embodiment
Entreat the radial dimension of runner 121a identical, be conducive to reduce the diameter of component；Alternatively, second flow channel can also be located at first flow
Periphery.Wherein, central flow channel 121a and first flow 122a, second flow channel 125a are spaced apart from each other.In addition, for the ease of
Waterway converter manufactures, and the waterway converter 14a in the present embodiment is also divided into waterway converter 16a and lower waterway converter
17a.Section 124a is extended laterally to be located in lower waterway converter 17a, and central flow channel 121a by upper waterway converter 16a and under
Waterway converter 17a connects to be formed.Lower waterway converter 17a further includes interior sealing wall and outer seal wall, the upper end of interior sealing wall
Seal and coordinate with the lower end of the central flow channel of upper waterway converter 16a, the lower end of interior sealing wall and the upper end of the first central tube 41a
Sealing coordinates, and the upper end of outer seal wall coordinates with the inner wall sealing for crossing water cavity 123a on upper waterway converter 16a, outer seal wall
The upper end sealing of lower end and the second central tube 42a coordinate.
During water processed, raw water enters in the reverse osmosis element kit of lateral flow type from raw water inlet 11a, is flowed by center
Road 121a, and it is divided into two-way under the action of waterway converter 14a.Wherein entered water cavity by extending laterally a section 124a all the way
123a, and entered under the action of the hydraulic pressure of front end by crossing water portion 231a in the raw water water guide layer in reverse osmosis filter core 2a；It is another
Curb the first central tube 41a and flows downward, and into water-carrying groove 521a, and crosses water by lower end under the action of the hydraulic pressure of front end
Portion enters in raw water water guide layer.After reverse osmosis filter core 2a both ends water inlet, raw water is outwards flowed along raw water water guide layer screw type, and
Gradually produce pure water and enter pure water water guide layer, pure water is entered along pure water water guide layer by the water hole of 42a on the second central tube
In second channel 42a, and flow up along second channel 42a, flowed out by first flow 122a from pure water water outlet 12a.
On the other hand, do not continue to flow along raw water water guide layer by the raw water of membrane component, reverse osmosis filter core is discharged from raw water discharge end
2a and enter first and cross water space 31a, then by second flow channel 125a, finally flowed out from concentrated water water outlet 13a.As for above-mentioned
The water process processed of water (flow) direction under structure embodiment from the outside to the core, the i.e. reverse flow of the process, details are not described herein again.Separately
Outside, the structure of raw water water guide layer can use for reference embodiment one in the reverse osmosis filter core in the present embodiment.
As embodiment three, as shown in fig. 6, unlike the embodiments above, the center of reverse osmosis filter core 2b is equipped with the
One end of one central tube 41b and second the central tube 42b, first central tube 41b parallel with the first central tube 41b are closed, and first
The Inner Constitution second channel 44b of Inner Constitution the first passage 43b, the second central tube 42b of central tube 41b.Specifically, originally
The reverse osmosis element kit of lateral flow type of embodiment includes the shell 1b and reverse osmosis filter core 2b in shell 1b, reverse osmosis filter core
Have first to cross water space 31b between 2b and shell 2b.Shell 1b one end be equipped with raw water inlet 11b, pure water water outlet 12b and
Concentrated water water outlet 13b.The both ends of reverse osmosis filter core 2b included water portion 231b and closure 232b respectively.Cross water portion 341b connections
Raw water water guide layer and first passage 43b, second channel 44b connection pure water water guide layers and pure water water outlet 12b.In the present embodiment
The structure of raw water water guide layer can use for reference embodiment one in reverse osmosis filter core, and details are not described herein again.
As example IV, as shown in fig. 7, reverse osmosis filter core 2c's is closed at both ends, the center inner wall of reverse osmosis filter core 2c
Water section 24c and second, which is crossed, with axially distributed first crosses water section 25c, first crosses water section 24c communicates with pure water water guide layer, the
Two cross water section 25c communicates with raw water water guide layer., wherein it is desired to, it is noted that the above-mentioned first water section and the second water section excessively excessively refers to
Region on the center inner wall of reverse osmosis filter core.Reverse osmosis filter core 2c centers are equipped with first passage and second channel, and first
Water section 24c and pure water water outlet 12 are crossed in passage connection first, and second channel is crossed water section 25c with second and communicated.It is specifically, reverse osmosis
The center of filter core 2c is equipped with the first central tube 41c and the second central tube 42c being nested in the first central tube 41c, the second center
The inner wall sealing of pipe 42c one end and the first central tube 41c coordinate and the first central tube 41c are separated into first segment 411c and second
Section 412c.Assembled for the ease of the sealing of the second central tube 42c and the first central tube 41c, in first segment 411c and second segment
The sealing fit portion 415c of opposite first central tube 41c inner wall protrusions, sealing ring and sealing fit portion 415c are set between 412c
Seal against, meanwhile, the inner wall of the first central tube 41c need to be suitably larger than the outside diameter of sealing ring, avoid inserting in the second central tube 42c
Enter and longer friction stroke is produced in the first central tube 41c internal procedures, improve assembly difficulty, or even cause sealing ring to come off.In addition,
Also there is closing-in structure in the lower end of sealing fit portion 415c so that the lower end of the second central tube 42c abuts against positioning.First
First passage is formed between the outer wall of section 411c and the second central tube 42c, is second channel inside the second central tube 42c, second
Passage has first to cross mouth of a river 413c respectively with being communicated inside second segment 412c, on the tube wall of first segment 411c and second segment 412c
Mouth of a river 414c is crossed with second.In the present embodiment, first passage is crossed water section 24c with first by the first mouth of a river 413c excessively and is communicated, the
Two passages are crossed mouth of a river 414c by second segment 412c inside and second and are communicated to cross water section 25c with second.
During specific wound membrane, as shown in figure 8, having notch 261c and folding line at the central axes of membrane component 26c respectively
262c, the first central tube 41c is placed at the central axes of membrane component 26c, wherein, first segment 411c and folding line 262c is aligned, the
Two sections of 412c and notch 261c is aligned, and subsequent membrane component 26c doublings simultaneously bond the reverse osmosis to form bag shaped structure along its edge gluing
Permeable membrane, folding line 262c is corresponding to wrap up first segment 411c in it, structure as shown in Figure 9 is formed, then again by reverse osmosis membrane
Volume is on the first central tube 41c.And then reverse osmosis membrane forms first close to the part of reverse osmosis filter core center side and crosses water section
24c and with first cross mouth of a river 413c communicate, another part bond closing formed second cross water section 25c and with second cross mouth of a river 414c
Communicate.It should be noted that second segment 412c causes reverse osmosis membrane inner side during wound membrane to have certain support, be conducive to carry
Rise the reliability of product.Certainly, wound membrane also has further embodiments, such as：Notch is separately positioned on the both sides of membrane component, membrane element
Pouch reverse osmosis membrane is bonded after part doubling, the first central tube is placed on wound membrane behind notch side；Alternatively, it is different from above-mentioned doubling
Bonding mode, reverse osmosis membrane, which can also be, to be bonded and to be formed as the first membrane component of discrete item and the second membrane component, etc..
In the present embodiment, raw water enters from raw water inlet 11c, and passes through the along the center flow of reverse osmosis filter core 2c
Two, which cross water section 25c, enters raw water water guide layer, closed at both ends due to reverse osmosis filter core 2c, under the action of forefront pressure, raw water
Outwards flowed along spiral helicine raw water water guide layer, and gradually form pure water in pure water water guide layer, be pooled to first and cross water section
24c, finally flows out from pure water water outlet 12c.And remaining raw water is then discharged for concentrated water and from the end of membrane component, pass through first
Water space 31c is crossed finally to flow out from concentrated water water outlet 13c.Compared with the reverse osmosis filter core of the lateral flow type in above-described embodiment, this reality
Applying in the reverse osmosis filter core of example second, to cross the corresponding influent sides of water section 25c longer, enters easy to raw water, also, raw water enter it is former
Without axially flowing and can outwards be flowed directed along raw water water guide helical layer shape after water water guide layer, the utilization of membrane component
Rate increases.In the present embodiment, the first water space 31c excessively is communicated with concentrated water water outlet 13c, and the end of membrane component forms original
The water outlet side of water water guide layer, the first length for crossing water section 24c are L1, and the second length for crossing water section 25c is L2.In view of raw water into
The efficiency of water, need to ensure that second crosses the certain length of water section 25c, and general L2 is not less than L1, and on the other hand, first crosses water section 24c
Length directly influence the water outlet efficiency of pure water, for the pure water in pure water water guide layer, water is crossed particularly with by second
The section 25c pure water that laterally the reverse osmosis filter core 2c in corresponding part is produced can be from first after needing axially to flow certain distance
Cross water section 34 to flow out, long second, which crosses water section 25c, can cause this portion of pure water axial direction flow distance long so that pure water water outlet
It is not smooth.Consider two aspect factors, preferably, 1/3≤L1/L2≤1.Raw water water guide in reverse osmosis filter core in the present embodiment
The structure of layer, end cover structure etc. can use for reference embodiment one, and details are not described herein again.
As current in further embodiments, with above-described embodiment from inside to outside flow direction on the contrary, first cross water space
Communicated with raw water inlet, the end of membrane component forms the influent side of raw water water guide layer, i.e. water route is lateral from outside reverse osmosis filter core
Center flow.Raw water under this structure enters raw water water guide layer from the end of membrane component, and there is no the original in the above embodiment
Water is intake efficiency, in addition, first crosses water section and be used to collect the pure water produced in pure water water guide layer, second, which crosses water section, is used to arrange
Go out the concentrated water produced in raw water water guide layer, in order to balance both water efficiency excessively, 1/3≤L1/L2≤3.Furthermore it is also possible in film
The end of element sets supporting rod, is used to support the end of membrane component, avoids the part from being washed open by hydraulic pressure.Wherein, supporting rod with
The end of membrane component is integrally formed, alternatively, being provided with the clamping part of clamping membrane component end on supporting rod.Supporting rod is to film
While the end of element plays positioning supporting role, guiding function also is played into aquaporin processed to raw water, in addition, being easy to
The size of original water inlet is controlled, the water resistance at this is reduced, lifts the importing efficiency of raw water, and be also used as reverse osmosis filter core
Positioning datum during installation.Preferably, the gap of supporting rod and reverse osmosis filter core side wall is tapered into along water inlet direction, to original
Water plays more preferable guiding function.
In addition, the other embodiment of the first central tube as the present embodiment four, different from the embodiment described above,
Second central tube one end and first central tube one end flush and seal cooperation, between the first central tube and the outer wall of the second central tube
First passage is formed, is second channel inside the second central tube, first passage is communicated by first mouth of a river excessively with the first water section excessively.
Under present embodiment, since second does not have tube wall excessively at water section, second crosses the water resistance smaller at water section, and it is more smoothly to cross water.
It is pointed out that on the basis of above-described embodiment structure, the first water section and the second water section excessively excessively can also be handed over
Change place, correspondingly, the notch direction of membrane component also needs to exchange.
Certainly, those skilled in the art be appreciated that above content be only the preferred embodiment of the utility model and
, not it is used for limiting the scope of the utility model, i.e., all equivalent changes and modifications made according to the utility model, are all
The utility model claims scope is covered, and is no longer illustrated one by one here.
Claims (10)
1. a kind of reverse osmosis element kit of lateral flow type, including shell and the reverse osmosis filter core in shell, the reverse osmosis filter
Have first to cross water space between core and shell, the reverse osmosis filter core includes pure water water guide layer and raw water water guide layer, described pure
Water water guide layer is sealed between two layers of membrane component, and the raw water water guide layer is intervally arranged with pure water water guide layer, the lateral flow type
There is raw water inlet, pure water water outlet and concentrated water water outlet, it is characterised in that the reverse osmosis filter on reverse osmosis element kit
The both ends of core are at least partly closed, and raw water is flowed along raw water water guide helical layer shape, the footpath of the influent side of the raw water water guide layer
It is more than the radial thickness of the water outlet side of raw water water guide layer to thickness.
2. the reverse osmosis element kit of lateral flow type according to claim 1, it is characterised in that the raw water water guide layer includes leaning on
First-class section and the second section close to water outlet side of nearly influent side, described first-class section equal with the radial thickness of second section
It is even, and described first-class section radial thickness be more than second section radial thickness.
3. the reverse osmosis element kit of lateral flow type according to claim 2, it is characterised in that be equipped with the raw water water guide layer
Raw water filter, the number of plies of the number of plies of the raw water filter in described first-class section more than the raw water filter in second section；Alternatively, institute
State in raw water water guide layer and be equipped with raw water filter, the raw water filter exists in the thickness of first-class section of correspondence position more than raw water filter
The thickness of second section correspondence position.
4. the reverse osmosis element kit of lateral flow type according to claim 1, it is characterised in that the radial direction of the raw water water guide layer
Thickness is gradually thinning from influent side to water outlet side.
5. the reverse osmosis element kit of lateral flow type according to claim 4, it is characterised in that be equipped with the raw water water guide layer
Raw water filter, the raw water filter are gradually thinning from influent side to water outlet side.
6. the reverse osmosis element kit of lateral flow type according to claim 1 or 2 or 4, it is characterised in that the raw water water guide layer
The radial thickness of influent side be 1.5~3 times of radial thickness of the water outlet side of raw water water guide layer.
7. the reverse osmosis element kit of lateral flow type according to claim 1, it is characterised in that the both ends of the reverse osmosis filter core
Included water portion and closure respectively, the closing portion in the periphery for crossing water portion, it is described cross water section not with raw water water guide layer
Communicate；Alternatively, the reverse osmosis filter core is closed at both ends, the center inner wall of the reverse osmosis filter core has axially distributed the
One crosses water section and second crosses water section, and described first crosses water section communicates with pure water water guide layer, and described second crosses water section and raw water water guide
Layer communicates.
8. the reverse osmosis element kit of lateral flow type according to claim 7, it is characterised in that the center of the reverse osmosis filter core
Equipped with first passage and second channel, the both sides of the raw water water guide layer are crossed water space with first passage, first respectively and are communicated, institute
State second channel connection pure water water guide layer and pure water water outlet.
9. the reverse osmosis element kit of lateral flow type according to claim 8, it is characterised in that the center of the reverse osmosis filter core
Equipped with the first central tube and the second central tube being nested in the first central tube, the Inner Constitution first of second central tube is logical
Road, the gap between first central tube and the second central tube form second channel；
Alternatively, the center of the reverse osmosis filter core is equipped with the first central tube and second central tube parallel with the first central tube, institute
State one end closing of the first central tube, the Inner Constitution first passage of first central tube, the inside of second central tube
Form second channel.
10. the reverse osmosis element kit of lateral flow type according to claim 1 or 2 or 3 or 4 or 5 or 7 or 8 or 9, its feature exist
In the influent side of the raw water water guide layer is located at the central area of reverse osmosis filter core, and the water outlet side of the raw water water guide layer is located at
The side wall of reverse osmosis filter core；Alternatively, the water outlet side of the raw water water guide layer is located at the central area of reverse osmosis filter core, the raw water
The influent side of water guide layer is located at the side wall of reverse osmosis filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714156.5U CN207342508U (en) | 2017-06-19 | 2017-06-19 | The reverse osmosis element kit of lateral flow type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714156.5U CN207342508U (en) | 2017-06-19 | 2017-06-19 | The reverse osmosis element kit of lateral flow type |
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| Publication Number | Publication Date |
|---|---|
| CN207342508U true CN207342508U (en) | 2018-05-11 |
Family
ID=62358727
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720714156.5U Active CN207342508U (en) | 2017-06-19 | 2017-06-19 | The reverse osmosis element kit of lateral flow type |
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| Country | Link |
|---|---|
| CN (1) | CN207342508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012206A (en) * | 2018-10-30 | 2018-12-18 | 杭州老板电器股份有限公司 | filter core and water purifier |
| CN116272379A (en) * | 2023-03-29 | 2023-06-23 | 泰州南潇新材料科技有限公司 | Nanofiltration membrane element with hierarchical filtering function |
-
2017
- 2017-06-19 CN CN201720714156.5U patent/CN207342508U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012206A (en) * | 2018-10-30 | 2018-12-18 | 杭州老板电器股份有限公司 | filter core and water purifier |
| CN109012206B (en) * | 2018-10-30 | 2024-04-09 | 杭州老板电器股份有限公司 | Filter element and water purifier |
| CN116272379A (en) * | 2023-03-29 | 2023-06-23 | 泰州南潇新材料科技有限公司 | Nanofiltration membrane element with hierarchical filtering function |
| CN116272379B (en) * | 2023-03-29 | 2023-10-20 | 泰州南潇新材料科技有限公司 | Nanofiltration membrane element with hierarchical filtering function |
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Effective date of registration: 20230606 Address after: Building 2, No. 52, 22nd Street, Baiyang Street, Qiantang New District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Hangzhou Jiuchuang Home Appliances Co.,Ltd. Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. |
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