CN207667450U - Membrane component and filter core - Google Patents

Abstract

This application discloses a kind of membrane component and filter core, wherein membrane component includes：At least one collector pipe rolls the first film unit on the collector pipe and rolls the second film unit on the collector pipe, at least one raw water runner of first film unit and second film unit is extended spirally along the circumferencial direction of the collector pipe, the wastewater outlet of first film unit is connected to the raw water inlet of second film unit, in the case where first film unit and second film unit are in unfolded state, the wastewater outlet of first film unit is located at the corresponding same side with the raw water inlet of second film unit.In the present embodiment, the membrane component in the embodiment of the present application can improve the surface velocity of membrane component, improve the antifouling property of film, extend membrane lifetime, and under identical intake pressure the pure water of membrane component water yield it is constant.

Description

Membrane component and filter core

Cross reference correlation is quoted

This application claims August in 2017 submit within 21st application No. is 201721047971.7, entitled " membrane component and filters The priority of the Chinese patent application of the Chinese patent application of core ", above-mentioned application reference are incorporated herein.

Technical field

This application involves water treatment field more particularly to a kind of membrane components and filter core.

Background technology

In the prior art, usually water is filtered using wound membrane element.The front interlayer of membrane component forms original Water flow passage, back side interlayer form stream of pure water road.

In general, using identical membrane area, film page is longer, and raw water runner is longer, and film number of pages is fewer, and crossflow velocity is got over Soon.The pollutant scouring intensity bigger that the faster membrane component of crossflow velocity adheres to film surface, thus stain resistance is preferable, the service life It is longer.The membrane component of the prior art, the length of raw water runner and the length of pure water runner are corresponding, when the raw water of single membrane component When the length of runner is too long, the length of corresponding pure water runner is also long, causes the back pressure of the membrane component pure water side larger, causes The water yield of the diaphragm pure water declines under identical production water pressure.

Utility model content

In order to overcome the drawbacks described above of the prior art, technical problems to be solved in this application be to provide a kind of membrane component and Filter core can improve the surface velocity of membrane component, improve the antifouling property of film, extend membrane lifetime, and identical intake pressure The water yield of the pure water of lower membrane component is constant.

This application discloses a kind of membrane components, including：At least one collector pipe, roll on the collector pipe first Film unit and roll the second film unit on the collector pipe, at least the one of first film unit and second film unit A raw water runner is extended spirally along the circumferencial direction of the collector pipe, the wastewater outlet of first film unit and second film The raw water inlet of unit is connected to.

Include such as above-mentioned membrane component this application discloses a kind of filter core.

In the present embodiment, the pure water runner of the membrane component in the embodiment of the present application remains unchanged, therefore the back of the body of pure water Pressure remains unchanged, but by modes such as film surface series connection, the water inlet number of pages of raw water is reduced, and raw water runner extends, to improve The surface velocity of membrane component improves the antifouling property of film, extends membrane lifetime, and the pure water of membrane component under identical intake pressure Water yield is constant.

Description of the drawings

Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed in the present application in any way It encloses.In addition, the shape and proportional sizes etc. of each component in figure are only schematical, it is used to help the understanding to the application, and It is not the specific shape and proportional sizes for limiting each component of the application.Those skilled in the art, can under teachings of the present application Implement the application to select various possible shapes and proportional sizes as the case may be.

Fig. 1 shows the structural schematic diagram of the membrane component in the embodiment of the present application in the deployed state.

Fig. 2 shows the front view of the membrane component of a specific embodiment in Fig. 1 in the deployed state.

Fig. 3 shows the front view of the membrane component of another specific embodiment in Fig. 1 in the deployed state.

Fig. 4 shows the principle schematic of the runner of the membrane component in Fig. 2.

Fig. 5 shows the principle schematic that the membrane component in Fig. 1 is under unfolded state.

Fig. 6 shows that the structure chart of the membrane component similar with the membrane component structure in Fig. 1, the membrane component carry putamina.

Fig. 7 shows the structural schematic diagram of the membrane component in another embodiment of the application.

Fig. 8 shows the fluid schematic of the membrane component in Fig. 7.

Fig. 9 shows that the structure chart of the membrane component similar with the membrane component structure in Fig. 1, the membrane component carry putamina.

Figure 10 shows the structural schematic diagram of membrane component in the deployed state in another embodiment of the application.

Figure 11 shows the front view of the membrane component of a specific embodiment in Figure 10 in the deployed state.

Figure 12 shows the front view of the membrane component of another specific embodiment in Figure 10 in the deployed state.

Figure 13 shows the concrete structure schematic diagram of the membrane component in Figure 10.

Figure 14 shows the runner principle schematic of the membrane component in Figure 10.

Figure 15 shows the structural schematic diagram of the membrane component in another embodiment of the application.

Figure 16 shows the runner principle schematic of the membrane component in Figure 15.

Figure 17 shows a kind of concrete structure schematic diagrams of the second central tube in Figure 15.

Figure 18 shows the sectional view of Figure 17.

Figure 19 shows another concrete structure schematic diagram of the second central tube in Figure 15.

Figure 20 shows the sectional view of Figure 19.

Figure 21 shows the structural schematic diagram of the lower half portion of the membrane component in Figure 15.

Figure 22 shows the structural schematic diagram of the top half of the membrane component in Figure 15.

Figure 23 shows the structural schematic diagram of the membrane component in another embodiment of the application.

Figure 24 shows the structural schematic diagram of the lower half portion of the membrane component in Figure 23.

Figure 25 shows the structural schematic diagram of the top half of the membrane component in Figure 23.

Figure 26 shows the structural schematic diagram of the membrane component in another embodiment of the application.

Figure 27 shows the runner schematic diagram of the membrane component in Figure 26.

Figure 28 shows the structural schematic diagram of the membrane component in another embodiment of the application.

Figure 29 shows the structural schematic diagram of the membrane component in another embodiment of the application.

Figure 30 shows the structural schematic diagram of the membrane component in another embodiment of the application.

The reference numeral of the figures above：1, collector pipe；11, the first central tube；12, the second central tube；111, the first pure water Flow-guiding channel；112, the second pure water flow-guiding channel；113, first passage；114, second channel；15, through hole；2, the first film list Member；21, the raw water inlet of the first film unit；22, the wastewater outlet of the first film unit；3, the second film unit；31, the second film unit Raw water inlet；32, the wastewater outlet of the second film unit；5, putamina；61, first through hole；62, the second through-hole；63, interlayer；65、 First clearance space；66, the second clearance space；71, first side；72, second side；73, third side；74, four side； 81, first end cover；82, second end cover；83, third end cap；84, the 4th end cap；91, the first lid；92, the second lid；93, Three lids；94, the 4th lid；95, the 5th lid；96, the first space；97, second space；98, fifth hole；981, third is logical Hole；982, fourth hole；99, fourth lane；101, the first water pipe；102, the second water pipe；.

Specific implementation mode

In conjunction with the description of attached drawing and the application specific implementation mode, the details of the application can be clearly understood.But It is the specific implementation mode of the application described here, is only used for explaining the purpose of the application, and cannot understands in any way At being limitation to the application.Under teachings of the present application, technical staff is contemplated that the arbitrary possible change based on the application Shape, these are regarded as belonging to scope of the present application.

The embodiment of the present application discloses a kind of membrane component, including：At least one collector pipe 1 is rolled in the collector pipe 1 On the first film unit 2 and roll the second film unit 3 on the collector pipe 1.

Circumference of at least one raw water runner of first film unit 2 and second film unit 3 along the collector pipe 1 Direction extends spirally.

The wastewater outlet 22 of first film unit is connected to the raw water inlet 31 of second film unit, described first Film unit 2 is in second film unit 3 under unfolded state, the wastewater outlet 22 of first film unit and second film The raw water inlet 31 of unit is located at the corresponding same side.

In the case where first film unit 2 and second film unit 3 are in unfolded state, first film unit 2 and institute Stating the second film unit 3 can be stacked.

First film unit 2 and second film unit 3 can also side by side be arranged along the axis direction of the collector pipe 1 Cloth.

The wastewater outlet 22 of first film unit can be located on the periphery of the membrane component, second film unit Raw water inlet 31 can be located at the membrane component periphery on.

The wastewater outlet 22 of first film unit and the raw water inlet 31 of second film unit can be located at the film The end of at least one end of element.

First film unit 2 and second film unit 3 can be rolled jointly on a collector pipe 1.

First film unit 2 and second film unit 3 can be rolled disposably jointly in a collector pipe 1 On.

In the prior art, the raw water runner of film unit is generally using from one end of film unit into from another side brought out Formula.And the raw water stream of first film unit 2 and at least one of second film unit 3 used in the embodiment of the present application Road is extended spirally along the circumferencial direction of collector pipe 1.Since first film unit, 2 and/or second film unit 3 is rolled in the collection On water pipe 1, thus it is longer using the raw water runner of the film unit of this kind of mode.

But first film unit 2 and/or 3 respective raw water runner of the second film unit of this kind of mode of use can not be unlimited The extension of system.With elongated, the pure water for the film unit that raw water runner is extended spirally along the circumferencial direction of collector pipe 1 of raw water runner Runner is also corresponding elongated, and the back pressure of the film unit is larger at this time, and the pure water water yield for being easy to cause the film unit declines.

In order to further extend the raw water runner of membrane component, the wastewater outlet 22 of the first film unit in the embodiment of the present application It is connected to the raw water inlet 31 of the second film unit.In the utility model embodiment, as raw water runner extends, but pure water runner It remains unchanged, therefore the back pressure of pure water remains unchanged, but by modes such as film surface series connection, the water inlet number of pages of raw water is reduced, Runner extends, and to improve the surface velocity of membrane component, improves the antifouling property of film, extends membrane lifetime, and identical influent pressure The water yield of the pure water of membrane component is constant under power.

In the embodiment of the present application, the raw water inlet of the wastewater outlet 22 of first film unit and second film unit 31 are located at the corresponding same side, can also easy to process, manufacture, assembly, and the membrane component using this kind of structure Volume can also be smaller.

Fig. 1 to Fig. 5 shows a specific embodiment of the membrane component in the application.Shown in referring to Fig.1, the implementation Membrane component in mode includes collector pipe 1, the first film unit 2 and the second film unit 3.First film unit 2 and described second Film unit 3 disposably rolls on the collector pipe 1 jointly.

When the membrane component is in unfolded state, first film unit 2 and second film unit 3 are stacked. Shown in Fig. 2, Fig. 3 and Fig. 4, raw water runner is formed between the front of adjacent first film unit 2.Adjacent Raw water runner is also formed between the front of second film unit 3.At the back side of first film unit 2 and the second film list The back side of member 3 is pure water runner, and all flows to the collector pipe 1.The raw water runner of first film unit 2 is along separate The direction of the collector pipe 1 is flowed, and the raw water runner of second film unit 3 is flowed along towards the direction of the collector pipe 1.

The diaphragm material of first film unit 2 and second film unit 3 can identical can also be different.Respectively Diaphragm material between a first film unit 2 can also be identical or be different.Each second film unit 3 it Between diaphragm material can also be identical or be different.

The number of pages of first film unit 2 and second film unit 3 is at least two panels.First film unit 2 and institute The number of pages for stating the second film unit 3 can be equal or unequal.With reference to shown in Fig. 2 and Fig. 4, the number of first film unit 2 Quantity of the amount more than the third film unit 3.With reference to shown in Fig. 3, the quantity of first film unit 2 might be less that described the The quantity of three film units 3.

With reference to shown in Fig. 2 and Fig. 4, the front of film page is sealed in C, D, E (at collector pipe) by modes such as folding, gluings (front including, reverse side is outside), the reverse side of film page sealed by modes such as foldings, gluings at A, B it is (positive including reverse side Outside), the sealing that the cooperation film page back side AD, AC and BD, BE gluings are formed so that pure water and raw water separate.

In the present embodiment, the raw water runner of first film unit 2 and second film unit 3 catchments along described The circumferencial direction of pipe 1 extends spirally.The wastewater outlet 22 of first film unit is located at the positive periphery of the membrane component On, the raw water inlet 31 of second film unit is located on the positive periphery of the membrane component.First film unit gives up Water out 22 is connected to the raw water inlet 31 of second film unit.

Referring to Figure 5, when the membrane component is in unfolded state, which has first side 71 (on the left of in figure Side) and second side 72 (right edge in figure), third side 73 (upside in figure) and four side 74 (downside in figure), wherein the A side 71 and second side 72 are oppositely arranged, and third side 73 and four side 74 are oppositely arranged.73 He of third side The four side 74 is connect with the first side 71 and second side 72 respectively.

Wherein, the side that first film unit 2, second film unit 3 are connect with the collector pipe 1 respectively is described The first side 71 of the membrane component.Wherein, the pure water of the pure water outlet of first film unit 2 and second film unit 3 goes out Mouth is connect with the collector pipe 1 positioned at first side 71.The pure water made as a result, by the first film unit 2 and the second film unit 3 It can be exported from collector pipe 1.The raw water inlet 31 of the wastewater outlet 22 of first film unit and second film unit is being opened up It is located at second side 72 when opening.When the membrane component is in unfolded state, first film unit 2 and second film unit 3 Raw water runner along the membrane component length direction extend.

Referring to Figure 5, the membrane component has along the opposite first end of the axis direction of the collector pipe 1 (in figure End) and second end (lower end in figure).In order to avoid mixing water, the raw water inlet 21 of first film unit is located at the membrane component First end.The wastewater outlet 32 of second film unit is located at the second end of the membrane component.Specifically, first film unit Raw water inlet 21 be arranged in the third side 73 of first film unit 2, the wastewater outlet 32 of second film unit is arranged In the four side 74 of second film unit 3.For extension raw water runner as possible, the raw water inlet of first film unit 21 can be positioned close at the third side 73 of the first side 71.The wastewater outlet 32 of second film unit can be with It is positioned close at the four side 74 of the first side 71.

Referring to Figure 5, the third side 73 of the raw water runner side of first film unit 2 is in addition to the first film list (AB sections) of part sealing outside the raw water inlet 21 of member, the 74 (oD of four side of the raw water runner side of first film unit 2 Section) sealing.The four side 74 of the raw water runner side of second film unit 3 is in addition to corresponding to the useless of second film unit (EF sections) of part sealing outside water out 32, the third side 73 (OH sections) of the raw water runner side of second film unit 3 are close Envelope.

Referring to Figure 5, in the present embodiment, the third side 73 of the raw water runner side of first film unit 2 Remove the third side of the part of the raw water inlet 21 of first film unit and the raw water runner side of second film unit 2 Side 73 remove corresponding to first film unit raw water inlet 21 part (the third side 73 of first film unit 2 AB sections, the GH sections of the third side 73 of second film unit 3) it is sealed by first end cover 81, the of second film unit 3 Three sides 73 correspond to first film unit raw water inlet 21 part (four side 74 of second film unit 3 OG sections) the gluing sealing on face of second film unit 3 close to the raw water runner side of third side 73.

The four side 74 of the raw water runner side of second film unit 3 removes the wastewater outlet of second film unit The four side 74 of 32 part and the raw water runner side of first film unit 2 is removed corresponding to second film unit Part (the CD sections of the four side 74 of first film unit 2, the third side of second film unit 3 of wastewater outlet 32 73 EF sections) it is sealed by second end cover 82, the four side 74 of first film unit 2 corresponds to second film unit The part (the oC sections of the four side 74 of first film unit 2) of wastewater outlet 32 is in first film unit 2 close to Gluing seals on the face of the raw water runner side of four side 74.

It is worth noting that, generally refer to the end gluing in film unit by end cap seal in this application, and with end The wall surface of lid bonds.

With reference to shown in Fig. 6, the membrane component of the embodiment of the present application may include the putamina 5 worn for the collector pipe 1.It is described First film unit 2 and second film unit 3 are arranged in the putamina 5, first film unit 2 or second film unit Interlayer 63 is formed between 3 outer edge surface and the inner wall of the putamina 5, to make wastewater outlet 22 and the institute of first film unit The raw water inlet 31 for stating the second film unit is connected to.The raw water inlet with first film unit is provided in the first end cover 81 First opening of 21 connections.Second be connected to the wastewater outlet 32 of second film unit is provided in the second end cover 82 Opening.In the present embodiment, the waste water generated by the first film unit 2 is flowed by the wastewater outlet of its periphery is located at circumference The raw water inlet 31 of the second film unit on face.The pure water that first film unit 2 and the filtering of the second film unit 3 generate is from collector pipe 1 Export outward.The raw water runner of the membrane component may be considered the raw water runner and the second film list of the first film unit 2 substantially as a result, The superposition of the raw water runner of member 3, thus the anti-pollution of the faster membrane component of crossflow velocity of the membrane component in the embodiment of the present application Property is preferable, lasts a long time, and under identical intake pressure the pure water of membrane component water yield it is constant.In addition, in the present embodiment, First film unit 2 and the second film unit 3 disposably roll on a collector pipe 1 jointly, therefore the membrane element in present embodiment Preparing for part is relatively simple.The structure that structure based on above-mentioned filter core can be seen that the filter core is relatively simple, and installation is more held Easily.

In an optional mode, first film unit 2 and second film unit 3 can be by identical film sheets Material is made.For example, first film unit 2 and second film unit 3 can be reverse osmosis membrane.

In an optional embodiment, it is contemplated that the waste water of the first film unit 2 enters second film unit 3, by In a part of pure water of 2 output of the first film unit, thus the water for entering second film unit 3 is less than the first film list Member 2, in order to maintain the surface velocity of second film unit 3, the film surface area of first film unit 2 to be more than second film The film surface area of unit 3 is (that is, the number of pages of the film page of first film unit 2 is more than the page of the film page of second film unit 3 Number).

In another optional embodiment, it is contemplated that the linear velocity of diaphragm and other actual conditions, described first The quantity of film unit 2 can be multiple, and multiple first film units 2 are made of identical or different filter membrane material.Alternatively, The quantity of second film unit 3 can be multiple, and multiple second film units 3 are by identical or different filter membrane material system At.More alternatively, the quantity of first film unit 2 and second film unit 3 can be multiple, multiple first film units 2 and second film unit 3 be made of identical or different filter membrane material.

In another optional embodiment, in order to make the pure water prepared retain certain minerals, described first Film unit 2 and second film unit 3 can be made of different diaphragms.For example, first film unit 2 can be nanofiltration Film, the second film unit 3 can be reverse osmosis membrane.In the present embodiment, it is contemplated that in order to ensure the salt rejection rate of water outlet, prevent from burning Water has incrustation scale, the film surface area of first film unit 2 to be less than the film surface area of second film unit 3 (that is, first film The number of pages of the film page of unit 2 is less than the number of pages of the film page of second film unit).

Fig. 7 to Fig. 8 shows a specific embodiment of the membrane component in the application.With reference to shown in Fig. 7, in the reality It applies in mode, the wastewater outlet 22 of first film unit is located on the periphery of the membrane component, second film unit Raw water inlet 31 is located on the periphery of the membrane component.In the present embodiment, first film unit 2 and second film Circumferencial direction of the raw water runner of unit 3 along the collector pipe 1 extends spirally.In order to avoid mixing water, first film unit Raw water inlet 21 be located at the upper end of first film unit 2.The wastewater outlet 32 of second film unit is located at described second The lower end of film unit 3.

The difference is that, first film unit 2 and second film unit 3 catchmented along described with last embodiment The axis direction spacing parallel arranging of pipe 1 is arranged.First film unit 2 and second film unit 3 can be by once or twice It rolls on the collector pipe 1.

With reference to shown in Fig. 7, in the present embodiment, first film unit 2 has along 1 axis direction phase of the collector pipe To first end (upper end of the first film unit 2 described in figure) and second end (lower end of the first film unit 2 described in figure), it is described Second film unit 3 have along the opposite third end of 1 axis direction of the collector pipe (upper end of the second film unit 3 described in figure) and 4th end (upper end of the second film unit 3 described in figure).Wherein, the second end of first film unit 2 and the second film list The third end of member 3 is disposed adjacent.

The membrane component includes first end cover 81, second end cover 82, third end cap 83, the 4th end cap 84.The first end Lid 81, second end cover 82, third end cap 83, the 4th end cap 84 are correspondingly arranged at 2 first end of the first film unit and respectively Two ends are arranged at the third end and the 4th end of second film unit 3.

In conjunction with shown in Fig. 8, the third side 73 of the raw water runner side of first film unit 2 removes the first film list The part (AB sections) of the raw water inlet 21 of member is sealed by first end cover 81.It is offered in the first end cover 81 and described first The third opening that the raw water inlet 21 of film unit is connected to.

The four side 74 (oD sections) of the raw water runner side of first film unit 2 is sealed by second end cover 82.

The third side 73 (OH sections) of the raw water runner side of second film unit 3 is sealed by third end cap 83.

The four side 74 of the raw water runner side of second film unit 3 removes the wastewater outlet of second film unit 32 part (oF sections) is sealed by the 4th end cap 84.The waste water with second film unit is offered on 4th end cap 84 4th opening of 32 connection of outlet.

The second end cover 82 and the third end cap 83 are respectively by the four side 74 of first film unit 2 and described The third side 73 of second film unit 3 seals, thus by the raw water runner of first film unit 2 and second film unit 3 Isolation.

Wastewater outlet stream similar with last embodiment, that its periphery is passed through by the waste water that the first film unit 2 generates Enter the raw water inlet 31 for being located at the second film unit on periphery.The raw water runner of the membrane component may be considered substantially as a result, The raw water runner of first film unit 2 is superimposed with the raw water runner of the second film unit 3, thus the membrane component in the embodiment of the present application The faster membrane component of crossflow velocity stain resistance it is preferable, last a long time, and the pure water of membrane component under identical intake pressure Water yield is constant.In addition, in the present embodiment, the first film unit 2 and the second film unit 3 are disposable or roll jointly twice On one collector pipe 1, thus the membrane component in present embodiment prepare it is relatively simple.Compared to last embodiment, the film The sectional area of element is smaller, but the length of raw water runner is longer.

With reference to shown in Fig. 9, the membrane component of the embodiment of the present application may include the putamina 5 worn for the collector pipe 1.It is described First film unit 2 and second film unit 3 are arranged in the putamina 5, first film unit 2 and second film unit Interlayer 63 is formed between 3 outer edge surface and the inner wall of the putamina 5, to make wastewater outlet 22 and the institute of first film unit The raw water inlet 31 for stating the second film unit is connected to.

In another optional embodiment, in order to make the pure water prepared retain certain minerals, described first Film unit 2 and second film unit 3 can be made of different diaphragms.For example, first film unit 2 can be nanofiltration Film, the second film unit 3 can be reverse osmosis membrane.In the present embodiment, it is contemplated that in order to ensure the salt rejection rate of water outlet, prevent from burning Water has incrustation scale, the film surface area of first film unit 2 to be less than the film surface area of second film unit 3.

For example, being set side by side along the axis direction of the collector pipe 1 in first film unit 2 and second film unit 3 In the embodiment set, the length of axis direction of first film unit 2 along the collector pipe 1 is less than second film unit 3 along the axis direction of the collector pipe 1 length (as scheme).

Alternatively, in the embodiment that first film unit 2 and second film unit 3 are stacked, described first Film unit 2 along the section of the axis direction perpendicular to the collector pipe 1 sectional area be less than second film unit 3 along perpendicular to The sectional area in the section of the axis direction of the collector pipe 1.

Of course, in other optional embodiments, its in first film unit 2 and second film unit 3 In one raw water runner extended spirally along the circumferencial direction of the collector pipe 1 and feasible.

Figure 10 to Figure 14 shows another specific embodiment of the membrane component in the application.Referring to Fig.1 shown in 0, Membrane component in the embodiment includes collector pipe 1, the first film unit 2 and the second film unit 3.First film unit 2 and institute The second film unit 3 is stated disposably to roll on the collector pipe 1 jointly.

When the membrane component is in unfolded state, first film unit 2 and second film unit 3 are stacked. Shown in Figure 11 and Figure 12, raw water runner is formed between the front of adjacent first film unit 2.Adjacent institute It states and also forms raw water runner between the front of the second film unit 3.At the back side of first film unit 2 and second film unit 3 back side is pure water runner, and all flows to the collector pipe 1.The raw water runner of first film unit 2 is along far from institute The direction flowing of collector pipe 1 is stated, the raw water runner of second film unit 3 is flowed along towards the direction of the collector pipe 1.

The diaphragm material of first film unit 2 and second film unit 3 can identical can also be different.Respectively Diaphragm material between a first film unit 2 can also be identical or be different.Each second film unit 3 it Between diaphragm material can also be identical or be different.

The number of pages of first film unit 2 and second film unit 3 is at least two panels.First film unit 2 and institute The number of pages for stating the second film unit 3 can be equal or unequal.Referring to Fig.1 shown in 1, the quantity of first film unit 2 is big In the quantity of the third film unit 3.Referring to Fig.1 shown in 2, the quantity of first film unit 2 might be less that the third The quantity of film unit 3.

Referring to Fig.1 shown in 1, the front of film page seals (front in C, D, E (at collector pipe) by modes such as folding, gluings Inside, reverse side is outside), the reverse side of film page is sealing (including reverse side, front is outside) at A, B by modes such as folding, gluings, The sealing for coordinating the film page back side AD, AC and BD, BE gluings to be formed so that pure water and raw water separate.

In the present embodiment, the raw water runner of first film unit 2 and second film unit 3 is along the collector pipe 1 circumferencial direction extends spirally.

Referring to Fig.1 shown in 3, the membrane component has along the opposite first end of the axis direction of the collector pipe 1 (in figure End) and second end (lower end in figure).The raw water inlet 21 of first film unit is located at the first end of the membrane component.Described The wastewater outlet 22 of one film unit is located at the second end of the membrane component.The raw water inlet 31 of second film unit is located at described The second end of membrane component.The wastewater outlet 22 of first film unit is connected to the raw water inlet 31 of second film unit.Institute The wastewater outlet 32 for stating the second film unit is located at the first end of the membrane component.

The membrane component further includes being arranged in the first end cover 81 of the first end of the membrane component and setting in the membrane element The second end cover 82 of the second end of part.The first end cover 81 has the be connected to the raw water inlet 21 of first film unit The second through-hole 62 that one through-hole 61 is connected to the wastewater outlet 32 of second film unit, the second end cover 82 have with it is described Third through-hole 981 that the wastewater outlet 22 of first film unit is connected to and be connected to the raw water inlet 31 of second film unit the Four through-holes 982.Third through-hole 981 can form the runner being connected to fourth hole 982 by putamina etc..

Referring to Fig.1 shown in 4, the membrane component is in the first side for having under unfolded state and being connect with the collector pipe 1 71 (left sides in figure) and the second side 72 opposite with the first side 71 (right side in figure), the membrane component is in expansion shape Also there is opposite third side 73 (upside in figure) and four side 74 (downside in figure), the third side 73 and institute under state Four side 74 is stated to connect with the first side 71 and second side 72 respectively.

The wastewater outlet 22 of first film unit is positioned close to the four side 74 in the second side 72. The raw water inlet 31 of second film unit is positioned close in the four side 74 of the first side 71.

In order to extend raw water runner as possible, the raw water inlet 21 of first film unit is positioned close in first side The third side 73 on side 71.The waste water of second film unit 3 is positioned close to described in the second side 72 Three sides 73.

In order to make raw water runner and the isolation of pure water runner of first film unit 2 and second film unit 3, described the Part (AB of the third side 73 of the raw water runner side of one film unit 2 other than the raw water inlet 21 of first film unit Section) sealing；Wastewater outlet of the four side 74 of the raw water runner side of first film unit 2 in addition to first film unit (oL sections) of part sealing outside 22；The four side 74 of the raw water runner side of second film unit 3 is in addition to second film (OQ sections) of part sealing outside the raw water inlet 31 of unit, the third side 73 of the raw water runner side of second film unit 3 (EF sections) of part sealing other than the wastewater outlet 32 of second film unit, the second side 72 of the membrane component seal.

In conjunction with shown in Figure 14, the third side 73 of the raw water runner side of first film unit 2 removes first film The raw water inlet 21 of unit and corresponding to second film unit wastewater outlet 32 part and second film unit 3 The third side 73 of raw water runner side removes raw water inlet 21 and second film unit corresponding to first film unit Wastewater outlet 32 part (the i.e. third of the AM sections and second film unit 3 of the third side 73 of first film unit 2 The GQ sections of side 73) it is sealed by the first end cover 81.The third side 73 of first film unit 2 corresponds to described second The part (i.e. the MB sections of the third side 73 of first film unit 2) of the wastewater outlet 32 of film unit is in first film unit 2 seal close to gluing on the face of the raw water runner side of third side 73.The third side 73 of second film unit 3 corresponds to In the part (i.e. the OG sections of the third side 73 of second film unit 3) of the raw water inlet 21 of first film unit described Second film unit 3 is sealed close to gluing on the face of the raw water runner side of three side.

The four side 74 of the raw water runner side of first film unit 2 removes the wastewater outlet of first film unit 22 and corresponding to second film unit raw water inlet 31 part and second film unit 3 raw water runner side Four side 74 removes the raw water inlet 31 of the wastewater outlet 22 and second film unit corresponding to first film unit Partly (i.e. the EP sections of the four side 74 of the CL sections and second film unit 3 of the four side 74 of first film unit 2) It is sealed by the second end cover 82.The four side 74 of first film unit 2 corresponds to the raw water of second film unit The part (i.e. the OC sections of the four side 74 of first film unit 2) of entrance 31 is in first film unit 2 close to the 4th Gluing seals on the face of the raw water runner side of side 74.The four side 74 of second film unit 3 corresponds to described first The part (i.e. the PF sections of the four side 74 of second film unit 3) of the wastewater outlet 22 of film unit is in second film unit 3 seal close to gluing on the face of the raw water runner side of the four side.

The second side 72 of the raw water runner side of the membrane component is by rubber belt sealing, to prevent waste water from from the film It is flowed out on the periphery of element.

In the present embodiment, first film unit 2 and second film unit 3 can be by identical diaphragm material systems At.For example, first film unit 2 and second film unit 3 can be reverse osmosis membrane.

Of course, the material of first film unit 2 and second film unit 3, quantity can according to actual needs into Row selection, is not repeated herein.

Figure 15 to Figure 22 shows another specific embodiment of the membrane component in the application.Referring to Fig.1 shown in 5, This application discloses a kind of membrane components, including collector pipe 1, the first film unit 2 and the second film unit 3.First film unit, 2 He The raw water runner of second film unit 3 is extended spirally along the circumferencial direction of the collector pipe 1.

The second central tube 12 that the collector pipe 1 central tube 11 and be set in outside first central tube 11 including first. First film unit 2 rolls on first central tube 11, and the inside of first central tube 11 has and described first First pure water flow-guiding channel 111 of the pure water outlet connection of film unit 2, for collecting the filtering of the first film unit 2 production Raw pure water.Second film unit 3 rolls on second central tube 12, is offered on second central tube 12 and institute State the second pure water flow-guiding channel 112 of the pure water outlet connection of the second film unit 3, the second pure water flow-guiding channel 112 and institute State the inside isolation of the second central tube 12.

Referring to Fig.1 shown in 6, when first film unit 2 is in unfolded state, the first side of first film unit 2 Side 71 (left side in figure) is connect with first central tube 11, i.e. the pure water outlet of first film unit 2 is located at the first side The back side interlayer on side 71, i.e. first film unit 2 is connected to first central tube 11, so as to be permeated from raw water runner The pure water collection filtered out is to the first central tube 11.

The raw water inlet 21 of first film unit be located at 71 opposite facing second side 72 of the first side (that is, It is located on periphery after rolling).The wastewater outlet 22 of first film unit is located at third side 73 and four side 74.Institute Third side 73 is stated to connect with the first side 71 and second side 72 respectively with the four side 74.That is, described in The waste water that the filtering of first film unit 2 generates is flowed out from two ends of the first film unit 2 described in its.For extension raw water as possible Runner, in the present embodiment, the wastewater outlet 22 of first film unit close to the first side 71 of second film unit 3 and Far from its second side 72.

When second film unit 3 is in unfolded state, the first side 71 of second film unit 3 is (on the left of in figure Side) it is connect with second central tube 12, i.e. the pure water outlet of second film unit 3 is located at its first side 71, i.e., described The pure water outlet of second film unit 3 is connected to second central tube 12, so as to will be penetrated from raw water runner filter out it is pure Water is collected to the second central tube 12.The wastewater outlet 32 of second film unit is located at second film unit 3 and described first The opposite second side 72 in side 71 (that is, being located on periphery after rolling).

The raw water inlet 31 of second film unit is located at third side 73 and the four side of second film unit 3 74.The third side 73 is connect with the first side 71 and second side 72 respectively with the four side 74.That is, described The raw water inlet 21 of first film unit is located at its both ends.For extension raw water runner as possible, in the present embodiment, described second The raw water inlet 31 of film unit is close to its first side 71 and far from its second side 72.

Referring to Fig.1 shown in 5, in the present embodiment, the outside wall surface of first film unit 2 and second central tube 12 Internal face between be formed with the first clearance space 65 so that raw water can be from the first clearance space 65 from the first film list The raw water inlet 21 of member enters in first film unit 2.The membrane component can also include 5 (not shown) of putamina, The second clearance space 66 is formed between the internal face of the putamina 5 and the outside wall surface of second film unit 3, so that described in Second film unit, 3 filtered waste water exports outward from the second clearance space 66.

Shown in referring to Figure 17 and Figure 18, second central tube 12 can be substantially cylindrical in shape.Second central tube 12 Inside can have the through hole for the first film unit 2 and first central tube 11 to be arranged.Second central tube 12 The trepanning (that is, first passage 113) of multiple circumferentially spaced arrangements can be provided on lateral wall.Second central tube 12 It could be formed with the second channel 114 of the axis direction extension substantially along the second central tube 12 on wall.The second channel 114 with The connection of the first passage 113 forms the second pure water flow-guiding channel 112.And the second pure water flow-guiding channel 112 and through hole Isolation, to which the pure water for making the second film unit 3 generate is isolated with the first film unit 2.The second channel 114 is towards described second The one or both ends opening in opposite end in the axial direction of central tube 12, to export pure water from the second central tube 12.It is excellent The quantity of selection of land, the first passage 113 is multiple, and multiple first passages 113 are along 12 circumferentially-spaced row of the second central tube Cloth, the second channel 114 extend along the axis direction of second central tube 12.Of course, the knot of the second central tube 1221 Structure can also be in other structures, for example, Figure 19 and Figure 20 show another optional embodiment of the second central tube 12.

The membrane component has along the opposite first end and second end of the axis direction of the collector pipe 1.The membrane component May include the end cap being arranged in first film unit 2 and described second film unit, 3 the same end, the end cap has for inciting somebody to action The wastewater outlet (i.e. the first clearance space 65) of first filter membrane and the wastewater outlet of second filter membrane are (between i.e. second Gap space 66) connection channel.

In the present embodiment, the wastewater outlet 22 of first film unit is located at the both ends of the membrane component, and described The raw water inlet 31 of two film units is located at the both ends of the membrane component.

With reference to shown in Figure 21, specifically, the membrane component includes the second end cover 82 positioned at lower end.The second end cover 82 Including：The first lid 91 being set in outside first film unit 2, the second lid 92 being set in outside second film unit 3, First lid 91 has the first space 96 being connected to the wastewater outlet of first filter membrane；Second lid 92 has There is the second space 97 that the raw water inlet with second filter membrane is connected to.It is opened up on the side wall of second central tube 12 useful In the fifth hole 98 for being connected in first space 96 with the second space 97.In first lid 91 and described second The inner wall of heart pipe 12 is adapted, to seal first clearance space 65.

With reference to shown in Figure 22, the membrane component includes the first end cover 81 positioned at upper end.The first end cover 81 have with First pure water outlet of the first pure water flow-guiding channel 111 connection of first central tube 11, with second central tube 12 Second pure water outlet of the first pure water flow-guiding channel 111 connection, the waste water being connected to the wastewater outlet of second filter membrane are logical Road.Preferably, the first end cover 81 has for connecting the first pure water flow-guiding channel 111 and the second pure water water conservancy diversion Logical pure water mixing road (not shown).

Specifically, the first end cover 81 includes the third lid 93 being set in outside first film unit 2, is set in institute It states the 4th lid 94 outside the second film unit 3, be set in second central tube 12 and 11 end of the first central tube 5th lid 95.The third lid 93 be equipped with the first trepanning for being connected to the wastewater outlet 22 of first film unit and The second trepanning being connected to the raw water inlet 21 of first film unit, first trepanning are isolated with second trepanning. The outside wall surface of the third lid 93 is adapted to the internal face of second central tube 12, to seal first clearance space 65.It is provided with the third trepanning being connected to the wastewater outlet 32 of second film unit on 4th lid 94, the described 5th For being provided with the first pure water outlet being connected to first central tube 11 on lid 95, being connected to second central tube 12 Two pure water outlets, the waste water tunnel being connected to the first outlet of the third lid 93, for by the of the third lid 93 The fourth lane 99 that two trepannings are connected to the third trepanning of the 4th lid 94.Specifically, the fourth lane 99 includes edge The axis direction of membrane component extend and be connected to the end of first film unit 2 first flow, along the axis of the membrane component Line direction extend and the second flow channel that is connected to the end of second film unit 3 and with the first flow and described second Runner is connected to and along the third flow channel of the membrane component radially extended.

In the present embodiment, the raw water entered from the periphery of the first film unit 2 can be by the first film unit 2 Filtered waste water enters the raw water runner of the second film unit 3, i.e., for re-filtering in the second film unit 3, in the second film list Output pure water after member 3 filters again.The raw water runner of the membrane component may be considered the raw water of the first film unit 2 substantially as a result, Runner is superimposed with the raw water runner of the second film unit 3, thus the crossflow velocity of the membrane component in the embodiment of the present application is faster The stain resistance of membrane component is preferable, lasts a long time, and under identical intake pressure the pure water of membrane component water yield it is constant.In this reality It applies in mode, the first central tube 11 is mutually nested with the second central tube 12 to be formed, and the second pure water flow-guiding channel 112 is arranged in institute It states on the second central tube 12 so that the structure of the membrane component is relatively simple, and small volume, installation is relatively easy to.In addition, this implementation The raw water runner of the first film unit 2 and the second film unit 3 in mode is longer, thus the film surface speed of the film, filtering Efficiency is higher, and anti-fouling performance is preferable.

In other optional embodiments, the wastewater outlet 32 of second film unit is located at third side 73 and the 4th One in side 74, i.e., the wastewater outlet 32 of described second film unit is located at one end.Correspondingly, first film unit Raw water inlet 21 also is located at one in third side 73 and four side 74, i.e., the raw water inlet 21 of described first film unit In one end corresponding with the wastewater outlet 32 of the second film unit.For example, 32 He of wastewater outlet of second film unit The raw water inlet 21 of first film unit is respectively positioned on upper end.Of course, the first end cover 81 and the second end cover 82 Structure can also be herein not repeated with reference to variation.

In the present embodiment, first film unit 2 is NF membrane, and second film unit 3 is reverse osmosis membrane.It is preferred that The film surface area ratio of ground, the film surface area of first film unit 2 and second film unit 3 is 1：Between 1 to 1 to 2.

Figure 23 to Figure 25 shows another optional embodiment of the application.With reference to shown in Figure 23, Figure 24 and Figure 25, In another optional embodiment, the difference is that, first film unit 2 was rolled described with last embodiment On two central tubes 12, second film unit 3 rolls on first central tube 11.

In the present embodiment, between the outside wall surface of second film unit 3 and the internal face of second central tube 12 It is formed with the first clearance space 65, so that can be from the first clearance space 65 from first film unit, 2 filtered waste water Enter in second film unit 3 from the raw water inlet 31 of second film unit.The membrane component can also include putamina 5, the second clearance space 66 is formed between the internal face of the putamina 5 and the outside wall surface of first film unit 2, so that raw water can To enter first film unit 2 from second clearance space 66 from the raw water inlet 21 of first film unit.

In another optional embodiment, the wastewater outlet 22 of first film unit is located at the one of the membrane component End.The raw water inlet 31 of second film unit can also be located at the waste water of the membrane component and first film unit as a result, Export 22 corresponding one end.For example, the raw water inlet 31 of the wastewater outlet 22 of first film unit and second film unit Positioned at the first end of the membrane component.In the deployed state, the wastewater outlet 22 of first film unit is located at its third side 73.The raw water inlet 31 of second film unit also is located at its third side.

In the present embodiment, first film unit 2 and second film unit 3 are reverse osmosis membrane.Preferably, institute The film surface area of the first film unit 2 and the film surface area ratio of second film unit 3 are stated 2：Between 1 to 1 to 1.

The concrete structure of membrane component in the embodiment is referred to last embodiment, then this is not repeated.

With reference to shown in Figure 26 and Figure 27, the embodiment of the present application also discloses a kind of membrane component, which further includes first Water pipe 101 and the second water pipe 102.The pure water runner of the first side 71 and the second film unit 3 of first film unit, 2 pure water flow passage side The first side 71 of side is arranged on collector pipe 1.First water pipe 101 be arranged the first film unit 2 raw water flow passage side first At side 71, so that the front of the first film unit 2 is wrapped on the first water pipe 101.First water pipe 101 includes being opened in described the Multiple first deflector holes on one water pipe, 101 side wall extend and in the axial direction for being connected to multiple first deflector holes The first flow-guiding channel and be arranged in 101 end of the first water pipe and what is be connected to first flow-guiding channel first open Mouthful.Raw water can enter from the first opening in the first flow-guiding channel, and be imported in the first film unit 2 from the first deflector hole. Under the effect of one deflector hole, raw water can be extended spirally along the circumferential direction, and from the second side 72 of the first film unit 2 (after rolling Outer rim) flow outwardly.Second water pipe 102 is arranged at the first side 71 of the raw water flow passage side of the second film unit 3, so that the The front of two film units 3 is wrapped on the second water pipe 102.Second water pipe 102 includes being opened in 102 side of the second water pipe Multiple second deflector holes, in the axial direction extension and the second water conservancy diversion for being connected to multiple second deflector holes on wall lead to Road and be arranged 102 end of the second water pipe and be connected to second flow-guiding channel second opening.From the first film list After the waste water that the second side 72 of member 2 exports enters the second side 72 (outer rim after rolling) of the second film unit 3, then circumferentially Direction extends spirally flowing, and the second flow-guiding channel is flowed into the second deflector hole of the second water pipe 102, then from the second deflector hole, Finally from the second opening outflow.In order to separate in waste water and raw water, the first opening and the second opening can be located at and catchment The both sides of pipe 1.

Preferably, the membrane component, which is under unfolded state, has opposite third side 73 and four side 74, described Third side 73 and the four side 74 are connect with the first side 71 and second side 72 respectively.The membrane component includes End cap in first film unit 2 and 3 both ends of the second film unit is set, and the end cap is for the collector pipe 1, described the One water pipe 101 and second water pipe 102 are worn, and the end cap is by the of first film unit 2 and second film unit 3 Three sides 73 and four side 74 seal.

Further, in order to make to be isolated by filtered waste water and raw water, the membrane component further includes putamina and sealing Part.The sealing element is arranged between the lateral wall of the end cap and the madial wall of putamina.Two between sealing element and putamina Space the raw water inlet of the wastewater outlet of the first film unit 2 and the second film unit 3 can be connected to.

In another optional embodiment, the sealing element can be set in first water pipe, 101 and second water Outside pipe 102, so as to so that the space in the raw water of the first water pipe 101, the waste water and putamina of the second water pipe 102 is isolated.

In another optional embodiment, the sealing element can be wrapped in first film unit 2 and described Two film units, 3 outside, to make the sealing element form a sealing with first film unit 2 and second film unit 3 Space is simultaneously isolated with the space in putamina.

With reference to shown in Figure 28, the embodiment of the present application also discloses a kind of membrane component, which includes collector pipe 1, setting First on collector pipe 1 film unit 2 and the second film unit 3 for being arranged on collector pipe 1.First film unit 2 (blue film) and Two film units 3 (effluent film) are alternatively arranged along the axis direction of collector pipe 1.Wherein, the raw water inlet of the first film unit 2 is located at it Third side 73, wastewater outlet are located at its four side 74.That is, axis of the raw water runner of first film unit 2 along collector pipe 1 Line direction extends.The raw water inlet of second film unit 3 is located at its second side 72, and wastewater outlet is located at its four side 74.That is, the raw water runner of second film unit 3 along the circumferential direction extends spirally.

With reference to shown in Figure 29, the embodiment of the present application also discloses a kind of membrane component, which includes collector pipe 1, setting First on collector pipe 1 film unit 2 and the second film unit 3 for being arranged on collector pipe 1.First film unit 2 (effluent film) and Second film unit 3 (effluent film) is alternatively arranged along the axis direction of collector pipe 1.The raw water inlet of first film unit 2 be located at its Dual side-edge 72, wastewater outlet are located at its four side 74.The raw water inlet of second film unit 3 is located at its third side 73, Wastewater outlet is located at its second side 72.That is, the raw water runner of first film unit 2 and second film unit 3 is circumferentially Direction extends spirally.It needs it is worth noting that, being arranged in first film unit 2 close to described second film unit, 3 one end End cap and putamina between be provided with sealing element (such as rubber ring) will enter the first film unit 2 raw water with pass through the first film list 2 filtered waste water isolation of member.

With reference to shown in Figure 30, the embodiment of the present application also discloses a kind of membrane component, which includes collector pipe 1, setting First on collector pipe 1 film unit 2 and the second film unit 3 for being arranged on collector pipe 1.First film unit 2 (effluent film) and Second film unit 3 (effluent film) is alternatively arranged along the axis direction of collector pipe 1.The raw water inlet of first film unit 2 be located at its Dual side-edge 72, wastewater outlet are located at its four side 74.The raw water inlet of second film unit 3 is located at its second side 72, Wastewater outlet is located at its four side 74.That is, the raw water runner of first film unit 2 and second film unit 3 is circumferentially Direction extends spirally.It needs it is worth noting that, being arranged in first film unit 2 close to described second film unit, 3 one end End cap and putamina between be provided with sealing element (such as rubber ring) will enter the first film unit 2 raw water with pass through the first film list 2 filtered waste water isolation of member.

The embodiment of the present application also discloses a kind of filter core comprising such as above-mentioned membrane component.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.

Above-described embodiment is only to illustrate the technical concepts and features of the application, and its object is to allow person skilled in the art Scholar can understand present context and implement according to this, and the protection domain of the application can not be limited with this.It is all according to the application Equivalent change or modification made by Spirit Essence should all cover within the protection domain of the application.

Claims (37)

1. a kind of membrane component, which is characterized in that including：At least one collector pipe, the first film rolled on the collector pipe Unit and roll the second film unit on the collector pipe, first film unit and second film unit it is at least one Raw water runner is extended spirally along the circumferencial direction of the collector pipe, the wastewater outlet of first film unit and the second film list The raw water inlet connection of member.

2. membrane component according to claim 1, which is characterized in that at first film unit and second film unit Under unfolded state, the wastewater outlet of first film unit is located at corresponding same with the raw water inlet of second film unit One side.

3. membrane component according to claim 1, which is characterized in that the wastewater outlet of first film unit is located at the film On the periphery of element, the raw water inlet of second film unit is located on the periphery of the membrane component.

4. membrane component according to claim 3, which is characterized in that first film unit and second film unit are common It rolls on a collector pipe, the membrane component is in the first side for having under unfolded state and being connect with the collector pipe The second side opposite with the first side；The raw water of the wastewater outlet of first film unit and second film unit Entrance is located at second side upon deployment.

5. membrane component according to claim 4, which is characterized in that the membrane component is under unfolded state with opposite Third side and four side, the third side and the four side connect with the first side and second side respectively It connects, the raw water inlet of first film unit is positioned close in the third side of the first side, second film The wastewater outlet of unit is positioned close in the four side of the first side.

6. membrane component according to claim 5, which is characterized in that the third of the raw water runner side of first film unit Side is in addition to the raw water inlet external seal of first film unit, the four side of the raw water runner side of first film unit Sealing；The four side of the raw water runner side of second film unit is close other than the wastewater outlet of second film unit Envelope, the third side seals of the raw water runner side of second film unit.

7. membrane component according to claim 6, which is characterized in that first film unit and second film unit are in institute It states and is stacked under membrane component unfolded state.

8. membrane component according to claim 7, which is characterized in that the third of the raw water runner side of first film unit Side removes the third side of the part of the raw water inlet of first film unit and the raw water runner side of second film unit Side removes the part of raw water inlet corresponding to first film unit and is sealed by first end cover, and the of second film unit Three sides correspond to the part of the raw water inlet of first film unit by second film unit close to third side Raw water runner side face on seal.

9. membrane component according to claim 7, which is characterized in that the 4th of the raw water runner side of second film unit Side removes the 4th side of the part of the wastewater outlet of second film unit and the raw water runner side of first film unit Side removes the part of wastewater outlet corresponding to second film unit and is sealed by second end cover, and the of first film unit Four side correspond to the part of the wastewater outlet of second film unit by first film unit close to four side Raw water runner side face on seal.

10. membrane component according to claim 6, which is characterized in that first film unit and second film unit edge The axis direction laid out in parallel of the collector pipe.

11. membrane component according to claim 10, which is characterized in that first film unit has along the collector pipe axis The opposite first end and second end in line direction, second film unit have along the opposite third end of the tube axis direction that catchments With the 4th end, wherein the third end of the second end of first film unit and second film unit is disposed adjacent,

The membrane component includes first end cover, second end cover, third end cap, the 4th end cap, the first end cover, second end cover, Third end cap, the 4th end cap are correspondingly arranged at the first film unit first end and second end, are arranged in second film respectively The third end and the 4th end of unit；

The third side of the raw water runner side of first film unit removes the part of the raw water inlet of first film unit It is sealed by first end cover；

The four side of the raw water runner side of first film unit is sealed by second end cover；

The third side of the raw water runner side of second film unit passes through third end cap seal；

The four side of the raw water runner side of second film unit removes the part of the wastewater outlet of second film unit Pass through the 4th end cap seal.

12. membrane component according to claim 4, which is characterized in that be provided in the raw water runner of first film unit Close to the first water pipe of the first side of first film unit, it is provided in the raw water runner of second film unit close The second water pipe in the first side of second film unit, first water pipe and second water pipe are along the collector pipe Axis direction extends, and first water pipe includes multiple first deflector holes being opened on the first water pipe side wall, along axis Direction extends and the first flow-guiding channel for being used to be connected to multiple first deflector holes and setting are in first water pipe end Portion and the first opening being connected to first flow-guiding channel；Second water pipe includes being opened on the second water pipe side wall Multiple second deflector holes, extend in the axial direction and for the second flow-guiding channel for being connected to multiple second deflector holes with And be arranged second water pipe end and be connected to second flow-guiding channel second opening.

13. membrane component according to claim 12, which is characterized in that the membrane component, which is under unfolded state, to be had relatively Third side and four side, the third side and the four side connect respectively with the first side and second side It connects, the membrane component includes the end cap being arranged in first film unit and second film unit both ends, and the end cap is for institute It states collector pipe, first water pipe and second water pipe to wear, the end cap is by first film unit and second film The third side of unit and four side sealing.

14. membrane component according to claim 13, which is characterized in that including putamina and sealing element, the sealing element setting Between the putamina and the end cap, or, the sealing element is set in outside first water pipe and the second water pipe, or, described Sealing element is wrapped on the outside of first film unit and second film unit.

15. membrane component according to claim 3, which is characterized in that including putamina, the putamina and first film unit And/or it is formed between the outside wall surface of second film unit and the wastewater outlet of first film unit and second film unit Raw water inlet connection third space.

16. membrane component according to claim 1, which is characterized in that the wastewater outlet of first film unit and described the The raw water inlet of two film units is located at the end of at least one end of the membrane component.

17. membrane component according to claim 16, which is characterized in that first film unit and second film unit exist It is stacked under the membrane component unfolded state, first film unit and second film unit are rolled and catchmented described jointly The raw water inlet of Guan Shang, the wastewater outlet of first film unit and second film unit is located at one end of the membrane component, The wastewater outlet of the raw water inlet of first film unit and second film unit is located at the other end of the membrane component.

18. membrane component according to claim 17, which is characterized in that the membrane component, which is under unfolded state, to be had and institute The first side and the second side opposite with the first side, the membrane component for stating collector pipe connection are under unfolded state Also there is opposite third side and four side, the third side and the four side respectively with the first side and Second side connects, and the wastewater outlet of first film unit is positioned close to the four side in the second side, The raw water inlet of second film unit is positioned close in the four side of the first side, the original of first film unit Water inlet is positioned close in the third side of the first side, the wastewater outlet of second film unit be positioned close in The third side of the second side.

19. membrane component according to claim 18, which is characterized in that the of the raw water runner side of first film unit Part sealing of three sides other than the raw water inlet of first film unit, the raw water runner side of first film unit Part sealing of the four side other than the wastewater outlet of first film unit；The raw water runner side of second film unit Four side other than the raw water inlet of second film unit part sealing, the raw water runner one of second film unit Part sealing of the third side of side other than the wastewater outlet of second film unit, the second side of the membrane component are close Envelope.

20. membrane component according to claim 19, which is characterized in that the of the raw water runner side of first film unit Three sides remove first film unit raw water inlet and corresponding to second film unit wastewater outlet part and The third side of the raw water runner side of second film unit removes raw water inlet and institute corresponding to first film unit The part for stating the wastewater outlet of the second film unit passes through end cap seal；The third side of first film unit corresponds to described the The part of the wastewater outlet of two film units is close on face of first film unit close to the raw water runner side of third side Envelope；The third side of second film unit corresponds to the part of the raw water inlet of first film unit in the second film list Member is close to sealing on the face of the raw water runner side of three side.

21. membrane component according to claim 20, which is characterized in that the of the raw water runner side of first film unit Four side remove first film unit wastewater outlet and corresponding to second film unit raw water inlet part and The four side of the raw water runner side of second film unit removes wastewater outlet and institute corresponding to first film unit The part for stating the raw water inlet of the second film unit passes through end cap seal；The four side of first film unit corresponds to described the The part of the raw water inlet of two film units is close on face of first film unit close to the raw water runner side of four side Envelope；The four side of second film unit corresponds to the part of the wastewater outlet of first film unit in the second film list Member is close to sealing on the face of the raw water runner side of the four side.

22. membrane component according to claim 17, which is characterized in that the membrane component further includes being arranged in the collector pipe The first end cover and second end cover at both ends, the first end cover have first be connected to the raw water inlet of first film unit The second through-hole that through-hole is connected to the wastewater outlet of second film unit, the second end cover have and first film unit Wastewater outlet connection third through-hole and the fourth hole that is connected to the raw water inlet of second film unit.

23. membrane component according to claim 16, which is characterized in that the collector pipe includes the first central tube and is set in The second central tube outside first central tube, first film unit roll on first central tube, second film Unit rolls on second central tube；Or, first film unit rolls on second central tube, second film Unit rolls on first central tube.

24. membrane component according to claim 23, which is characterized in that offer and roll in institute on second central tube The the second pure water water conservancy diversion for stating the pure water outlet connection of first film unit or second film unit on the second central tube is logical Road, the second pure water flow-guiding channel are isolated with the inside of second central tube, and the second pure water flow-guiding channel includes setting The second channel set the first passage on the tube outer surface of second center and be connected to the first passage, described second At least open at one end of the channel towards the membrane component.

25. membrane component according to claim 24, which is characterized in that the raw water inlet of first film unit is located at described On the periphery of first film unit, the wastewater outlet of second film unit is located on the second film unit periphery.

26. membrane component according to claim 25, which is characterized in that the internal face of second central tube and described second In film unit and first film unit the first clearance space, the membrane component are formed between one outside wall surface of inside Including putamina, the internal face of the putamina and first film unit or second film on second central tube are rolled The second clearance space is formed between the outside wall surface of unit.

27. membrane component according to claim 1, which is characterized in that first film unit and second film unit by Identical or different diaphragm material is made.

28. membrane component according to claim 1, which is characterized in that first film unit is NF membrane, second film Unit is reverse osmosis membrane.

29. membrane component according to claim 28, which is characterized in that the film surface area of first film unit is less than described The film surface area of second film unit.

30. membrane component according to claim 1, which is characterized in that first film unit and second film unit are equal For reverse osmosis membrane.

31. membrane component according to claim 30, which is characterized in that the film surface area of first film unit is more than described The film surface area of second film unit.

32. membrane component according to claim 1, which is characterized in that the quantity of first film unit is multiple, Duo Gesuo The first film unit is stated to be made of identical or different diaphragm material.

33. membrane component according to claim 1, which is characterized in that the quantity of second film unit is multiple, Duo Gesuo The second film unit is stated to be made of identical or different diaphragm material.

34. membrane component according to claim 1, which is characterized in that first film unit and second film unit Circumferencial direction of the raw water runner along the collector pipe extends spirally.

35. membrane component according to claim 1, which is characterized in that in first film unit and second film unit Under unfolded state, the wastewater outlet of first film unit is located at corresponding with the raw water inlet of second film unit Different sides.

36. membrane component according to claim 1, which is characterized in that first film unit or second film unit Raw water runner extends along the axis direction of collector pipe.

37. a kind of filter core, which is characterized in that including such as 6 any one of them membrane component of claims 1 to 3.