WO2017113555A1 - 过滤膜组件和具有它的净水设备 - Google Patents

过滤膜组件和具有它的净水设备 Download PDF

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Publication number
WO2017113555A1
WO2017113555A1 PCT/CN2016/080700 CN2016080700W WO2017113555A1 WO 2017113555 A1 WO2017113555 A1 WO 2017113555A1 CN 2016080700 W CN2016080700 W CN 2016080700W WO 2017113555 A1 WO2017113555 A1 WO 2017113555A1
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WIPO (PCT)
Prior art keywords
pure water
membrane
water guide
filter
filtration membrane
Prior art date
Application number
PCT/CN2016/080700
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English (en)
French (fr)
Inventor
孙天厚
蔡雪刚
Original Assignee
佛山市美的清湖净水设备有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201521142121.6U external-priority patent/CN205627639U/zh
Priority claimed from CN201511030397.XA external-priority patent/CN105435637A/zh
Application filed by 佛山市美的清湖净水设备有限公司, 美的集团股份有限公司 filed Critical 佛山市美的清湖净水设备有限公司
Publication of WO2017113555A1 publication Critical patent/WO2017113555A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/10—Spiral-wound membrane modules
    • B01D63/12—Spiral-wound membrane modules comprising multiple spiral-wound assemblies
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

Definitions

  • the present invention relates to the field of electrical appliance manufacturing technology, and in particular to a filtration membrane module and a water purification device having the same.
  • the water purification system such as the household water purifier uses a filter element to filter the water to purify the water.
  • a composite filter element such as a reverse osmosis filter has a relatively simple function, and the requirements for various properties cannot be simultaneously satisfied when filtering water. For example, the flux and the desalination rate of water are not compatible, and the flux is large.
  • the filter has a low salt rejection rate and a small filter flux with a low salt rejection.
  • the present invention aims to solve at least one of the above technical problems in the related art to some extent.
  • the present invention provides a filter membrane module having the advantages of rich functions, wide applicability, high reliability, and good water purification effect.
  • the invention also proposes a water purification device having the filtration membrane module.
  • a filtration membrane module comprising: a central tube having a water outlet at a side wall thereof and an inlet and outlet at the end a plurality of pure water guide cloths, a plurality of said pure water guide cloths wound around an outer circumference of said center tube and laminated in a radial direction of said center tube; at least two filter membranes, each of said filter membranes For at least one, a plurality of the filter membranes are wound around the outer circumference of the center tube and each of the filter membranes is located between the adjacent pure water guides in the radial direction of the center tube.
  • the filter membrane module according to the embodiment of the invention has the advantages of rich functions, wide applicability, high reliability, good water purification effect and the like.
  • filtration membrane module may further have the following additional technical features:
  • the plurality of pure water guide cloths comprise a main pure water guide cloth and a plurality of sub-pure water guide cloths, one end of the main pure water guide cloth is connected to the center tube, and the plurality of The sub-pure water guide cloths are stacked along the thickness direction of the main pure water guide cloth and are sequentially connected in a staggered manner along the length direction of the main pure water guide cloth, and at least one of the plurality of sub-pure water guide cloths is connected at the same
  • the main pure water guide cloth is disposed, and each of the sub-pure water guide cloths is spaced apart from the one end of the main pure water guide cloth in a length direction of the main pure water guide cloth.
  • the length of the connection region of the plurality of sub-pure water guides in the circumferential direction of the center tube is less than or equal to the circumference of the center tube.
  • a plurality of the sub-pure water guides are connected to the main pure water guide cloth, or adjacent to the pure water guide cloths are connected to each other.
  • one end of the plurality of pure water guide cloths are equally spaced along the circumferential direction of the center tube and the one end of one of the plurality of pure water guide cloths and the center tube Connected.
  • each of the filter membranes is folded in half and is sandwiched with a water inlet web.
  • the filter membrane adjacent to the radial direction of the center tube and the pure water guide cloth are bonded by a glue layer.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane, and the filter membranes are arranged in the radial direction of the central tube into at least one unit group.
  • Each of the unit groups includes two first filter membranes, one second filter membrane, and two first filter membranes arranged in sequence along the radial direction of the central tube.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane, and the filter membranes are arranged in the radial direction of the central tube into at least one unit group.
  • Each of the unit groups includes a first filter membrane, two second filter membranes, and a first filter membrane sequentially arranged in a radial direction of the central tube.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane, and the filter membranes are arranged in the radial direction of the central tube into at least one unit group.
  • Each of the unit groups includes a first filter membrane and a second filter membrane sequentially arranged in a radial direction of the center tube.
  • the filter membrane comprises at least two reverse osmosis membranes or at least one reverse osmosis membrane and at least one nanofiltration membrane.
  • the filter membrane comprises at least one flux type membrane and at least one desalting membrane.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane, and the number of the first filtration membranes accounts for the total number of the filtration membranes. 25%-50%.
  • the first filter membrane is one of a flux type reverse osmosis membrane and a desalting reverse osmosis membrane
  • the second filtration membrane is a flux type reverse osmosis membrane
  • the other of the desalted reverse osmosis membranes; or the first filtration membrane is a nanofiltration membrane
  • the second filtration membrane is a reverse osmosis membrane.
  • each of the plurality of sub-pure water guides is sequentially connected to the outside of the preceding sub-pure water guide cloth or the main pure water guide cloth.
  • An embodiment according to a second aspect of the present invention provides a water purification apparatus comprising a filtration membrane module according to an embodiment of the first aspect of the present invention.
  • the water purifying apparatus has the advantages of good water purification effect, rich functions, and the like by using the filtration membrane module according to the embodiment of the first aspect of the present invention.
  • FIG. 1 is a partial structural schematic view of a filtration membrane module in a preparation process according to an embodiment of the present invention.
  • FIG. 2 is a partial structural schematic view of a filtration membrane module during preparation according to an embodiment of the present invention.
  • FIG. 3 is a partial structural schematic view of a filtration membrane module during preparation according to an embodiment of the present invention.
  • FIG. 4 is a partial structural schematic view of a filtration membrane module during preparation according to an embodiment of the present invention.
  • Figure 5 is a schematic view showing the structure of a filtration membrane module in a preparation process according to another embodiment of the present invention.
  • Figure 6 is a partial structural schematic view of a filtration membrane module during preparation according to another embodiment of the present invention.
  • Figure 7 is a partial structural schematic view of a filtration membrane module during preparation in accordance with another embodiment of the present invention.
  • FIG. 8 is a flow chart of a method of preparing a filtration membrane module in accordance with an embodiment of the present invention.
  • FIG. 9 is a flow chart of a method of preparing another filter membrane module in accordance with an embodiment of the present invention.
  • filter membrane module 1 central tube 100, water inlet 110, water inlet and outlet 120, pure water guide cloth 200, main pure water guide cloth 210, sub-pure water guide cloth 220, filtration membrane 300, first filtration membrane
  • a composite filter element such as a reverse osmosis filter element in the related art has a single function, and the requirements for various properties cannot be simultaneously satisfied when filtering water.
  • the inventors of the present application have found through extensive research and experiments that the filtration membrane in the reverse osmosis filter element is wound into a plurality of layers in the filter element for filtering water, because the flux and the desalination rate of the membrane itself cannot be both.
  • the flux and the desalination rate of the filter element corresponding to the filter membrane cannot be combined, that is, the reverse osmosis filter element using the large-flux filter membrane has a low salt rejection rate; the reverse osmosis of the filtration membrane with high desalination rate is adopted.
  • the filter element has a small flux.
  • a filtration membrane module 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
  • a filtration membrane module 1 includes a center tube 100, a plurality of pure water guide cloths 200, and at least two filtration membrane sheets 300.
  • the side wall of the center tube 100 is provided with a water outlet 110 and an inlet and outlet 120 is provided at the end.
  • a plurality of pure water guide cloths 200 are wound around the outer circumference of the center tube 100 and laminated in the radial direction of the center tube 100.
  • Each of the filter membranes 300 is at least one, and a plurality of filter membranes 300 are wound around the outer circumference of the center tube 100 and each of the filter membranes 300 is located between the adjacent pure water guides 200 in the radial direction of the center tube 100.
  • the number of pure water guide cloths 200 is adjusted according to the type and number of the filter membranes 300 to ensure that each of the filter membranes 300 can be located between adjacent pure water guide cloths 200, when the water outlet is 110 water At the time of the water inlet and outlet 120, water is discharged. When the water inlet and outlet 120 enters the water, the water outlet 110 discharges water.
  • the filtration membrane module 1 of the embodiment of the present invention by providing at least two filtration membranes 300, water can be filtered using at least two filtration membranes 300.
  • at least two filter membranes 300 having different functions can be selected to filter the water.
  • a filter membrane 300 having a large flux and a filter membrane 300 having a high salt rejection rate can be selected, which can not only ensure The salt rejection rate of the water flowing through the filtration membrane module 1 can also increase the flux of water in the filtration membrane module 1.
  • the water purification effect of the filter membrane module 1 can be adjusted by adjusting the number between different kinds of filter membranes 300, for example, by adjusting the flux of the large amount.
  • the number of the filtration membrane 300 and the filtration membrane 300 having a high salt rejection ratio adjusts the salt rejection rate and the flux size of the filtration membrane module 1, thereby improving the versatility of the function of the filtration membrane module 1, and improving the applicability of the filtration membrane module 1.
  • each of the filter membranes 300 can be positioned between the adjacent pure water guide cloths 200 in the radial direction of the center tube 100, so that the pure water guide cloth 200 can be used to filter the filter sheets.
  • the positioning of 300 not only facilitates winding of the filter membrane 300 on the center tube 100, but also improves the stability of the filter membrane 300 after winding.
  • each of the filter sheets 300 is located adjacent to the pure water guide cloth 200 in the radial direction of the center tube 100. between. In this way, the pure water guide cloth 200 can be used to guide the water.
  • the water After the water passes through all the filter membranes 300, the water is collected by the plurality of pure water guide cloths 200 to the central tube 100, and the filtered water enters the center through the water inlet 110.
  • the tube 100 is then discharged through the inlet and outlet 120 for user access. This not only ensures that water flow can pass through each of the filter membranes 300 to ensure the purification of water, but also facilitates the guiding and collecting of the filtered water to facilitate the passage of water through the filtration membrane module 1.
  • the filtration membrane module 1 according to the embodiment of the present invention has the advantages of rich and varied functions, high reliability, and good water purification effect.
  • a filtration membrane module 1 according to a specific embodiment of the present invention will be described below with reference to the accompanying drawings.
  • a filtration membrane module 1 in some embodiments of the present invention, as shown in FIGS. 1-7, includes a center tube 100, a plurality of pure water guides 200, and at least two filtration membranes 300.
  • the plurality of pure water guide cloths 200 include a main pure water guide cloth 210 and a plurality of sub-pure water guide cloths 220, one end of the main pure water guide cloth 210.
  • the plurality of sub-pure water guides 220 are connected in the thickness direction of the main pure water guide cloth 210 and are sequentially connected in the longitudinal direction of the main pure water guide cloth 210, and at least one of the plurality of sub-pure water guide cloths 220 is connected.
  • One is attached to the main pure water guide 210 and each sub-pure water guide 220 is spaced apart from the one end of the main pure water guide 210 in the longitudinal direction of the main pure water guide 210.
  • a plurality of sub-pure water guides 220 may be attached to the outer side surface of the main pure water guide cloth 210 (inside and outside directions are indicated by arrows A in FIGS. 2, 3, 6, and 7).
  • the plurality of sub-pure water guide cloths 220 can be connected to the main pure water guide cloth 210, and the main pure water guide cloth 210 can be connected to the center tube 100 to realize the connection of the plurality of pure water guide cloths 200.
  • the length of the connection region of the plurality of sub-pure water guides 220 in the circumferential direction of the center tube 100 is a. Less than or equal to the circumference of the center tube 100. Thereby, it is possible to easily control the position of each of the pure water guide cloths 200 on the center tube 100, thereby facilitating control of the position of each of the filter sheets 300 to ensure the water purification effect of the filter membrane module 1.
  • the plurality of sub-pure water guides 220 are all connected to the main pure water guide cloth 210, or the adjacent pure water guide cloths 200 are connected to each other. Thereby, the connection of the pure water guide cloth 200 can be achieved.
  • the one end of the main pure water guide cloth 210 is connected to the center tube 100 by ultrasonic welding, and the plurality of sub-pure water guide cloths 220 are joined by fusion welding.
  • the connection strength between the pure water guide cloths 200 but also the connection strength between the main pure water guide cloth 210 and the center tube 100 can be ensured, and the damage of the center tube 100 and the pure water guide cloth 200 during welding can be prevented.
  • the structural strength and sealing of the center tube 100 are ensured.
  • a plurality of sub-pure water guide cloths 220 are sequentially connected, and each of the plurality of sub-pure water guide cloths 220 is connected to the former sub-pure water guide cloth 220 or main pure water.
  • the outer side of the guide cloth 210 In other words, the sub-pure water guide cloth 220 adjacent to the main pure water guide cloth 210 is connected to the outer side surface of the main pure water guide cloth 210, and each of the remaining sub-pure water guide cloths 220 is sequentially connected to the previous sub-pure water guide cloth 220. On the outer side.
  • the plurality of sub-pure water guides 220 may be firstly connected by fusion welding, and then the main pure water guide cloth 210 may be ultrasonically welded to the center tube 100, or the main pure water guide cloth 210 may be ultrasonically welded.
  • a plurality of sub-pure water guides 220 are connected by misalignment by fusion welding. After that, the main pure water guide cloth 210 is straightened and tightened, and the plurality of sub-pure water guide cloths 220 connected by the misalignment are connected to the main pure water guide cloth 210, and the sub-pure water guide cloth 220 closest to the center tube 100 is mainly pure.
  • the junction of the water guide cloth 210 is spaced apart from the center tube 100 by a predetermined distance.
  • the filter membrane 300 and the water inlet net 400 are inserted from the main pure water guide cloth 210, and the filter film 300 is glued and fixed, and then the plurality of sub-pure water guides are sequentially connected.
  • the cloth 220 is inserted between the adjacent two pure water guide cloths 200 and the water inlet screen 400 and glued and fixed. After all the filter membranes 300 have been fixed, the pure water guide cloth 200 and the filter membrane sheet 300 are wound in the same direction on the center tube 100 to complete the film winding process.
  • one end of the plurality of pure water guide cloths 200 are disposed at equal intervals along the circumferential direction of the center tube 100 and one of the plurality of pure water guide cloths 200.
  • the one end is connected to the center tube 100. This also makes it possible to connect a plurality of pure water guides 200 to the central tube 100.
  • the one end of the one of the plurality of pure water guides 200 is connected to the center tube 100 by ultrasonic welding. This not only ensures the connection strength between the center tube 100 and the pure water guide cloth 200 connected thereto, but also prevents damage to the center tube 100 and the pure water guide cloth 200 during welding, and ensures the sealing property and structural strength of the center tube 100.
  • the central tube 100 is equally divided and marked, and then one of the pure water guide cloths 200 is ultrasonically welded to the central tube 100 by any one of the marks. After the welding is completed, the pure water guide cloth 200 is supported.
  • the central tube 100 starts to roll up the film, and the pure water guide cloth 200 as a support is glued, inserted into the filter membrane 300 and the water inlet net 400, wound up to the mark, and then inserted into the pure water guide cloth 200 and glued and placed.
  • the filter membrane 300 and the water inlet screen 400 are inserted. The above steps are repeated until the pure water guide cloth 200 and the filter membrane 300 are wound up.
  • FIGs 2 - 4, 6 and 7 illustrate a filter membrane module 1 in accordance with some embodiments of the present invention.
  • each filter membrane 300 is folded in half and is sandwiched with a water inlet screen 400. Thereby, not only the assembly of the filter membrane 300 and the water inlet screen 400 but also the water purification effect of the filter membrane module 1 can be improved.
  • the filter membrane 300 and the pure water guide cloth 200 adjacent in the radial direction of the center tube 100 are bonded by a glue layer. Thereby, the operation of connecting the filter membrane 300 and the pure water guide cloth 200 can be simplified to improve the assembly efficiency of the filter membrane module 1.
  • the filter membranes 300 are two and are respectively a first filter membrane 310 and a second filter membrane 320.
  • the filter membranes 300 are arranged in at least one unit along the radial direction of the central tube 100.
  • Each of the unit groups includes two first filter membranes 310, one second filter membrane 320, and two first filtration membranes 310 arranged in the radial direction of the central tube 100. It is thus possible for the water to pass through the four first filter membranes 310 through each of the second filter membranes 320 to effect filtration of the water.
  • the filter membranes 300 are two and are respectively a first filter membrane 310 and a second filter membrane 320.
  • the filter membranes 300 are arranged in at least one unit along the radial direction of the central tube 100.
  • Each of the unit groups includes a first filter membrane 310, two second filter membranes 320, and a first filter membrane 310 arranged in a radial direction along the central tube 100. This allows the water to pass through the two first filter membranes 320 through the two first filter membranes 310, as well as the filtration of water.
  • the filter membranes 300 are two and are respectively a first filter membrane 310 and a second filter membrane 320, and the filter membrane 300 is along the central tube 100.
  • each of the unit groups includes a first filter membrane 310 and a second filter membrane 320 which are sequentially arranged in the radial direction of the center tube 100. This allows water to pass through a first filter membrane 310 every time a second filter membrane 320 is passed, as well as filtering the water.
  • the filter membrane 300 is two and is the first filter membrane 310 and the second filter membrane 320, respectively, the first filter membrane 310 and the second filtration membrane 320
  • the quantity ratio and arrangement between the two can be adjusted according to actual needs.
  • the filter membrane 300 comprises at least two reverse osmosis membranes or at least one reverse osmosis membrane and at least one nanofiltration membrane.
  • the filter membrane module 1 can be mixed and rolled by using two kinds of reverse osmosis membranes or mixed with a reverse osmosis membrane and a nanofiltration membrane, which improves the application breadth of the reverse osmosis membrane and eliminates the reverse osmosis membrane itself.
  • the performance is limited, and the function of the filter membrane module 1 can be further improved by adjusting the number of the two reverse osmosis membranes or adjusting the function of the reverse osmosis membrane and the nanofiltration membrane.
  • the filter membrane 300 includes at least one desalted membrane and at least one desalted membrane.
  • the filtration membrane module 1 can have a large flux and a high salt rejection rate, but also the salt rejection rate and flux of the filtration membrane module 1 can be adjusted by adjusting the ratio between the desalting membrane and the desalting membrane. The ratio between.
  • the filter membranes 300 are two and are the first filter membrane 310 and the second filter membrane 320, respectively, and the number of the first filter membranes 310 accounts for the total number of the filter membranes 300. 25%-50%. This ensures the filtering effect of each of the filter membranes, thereby facilitating the different functions of the filter membrane module 1.
  • the first filter membrane 310 is one of a flux type reverse osmosis membrane and a desalting reverse osmosis membrane
  • the second filtration membrane 320 is a flux type reverse osmosis membrane and a desalting reverse osmosis membrane.
  • the first filter membrane 310 is a nanofiltration membrane
  • the second filtration membrane 320 is a reverse osmosis membrane. This allows the filter membrane module 1 to have not only a high salt rejection rate but also a large flux.
  • the water purification apparatus according to an embodiment of the present invention includes the filtration membrane module 1 according to the above embodiment of the present invention.
  • the water purifying apparatus has the advantages of good water purification effect, rich functions, and the like by using the filtration membrane module 1 according to the above embodiment of the present invention.
  • a method of preparing a filtration membrane module according to an embodiment of the present invention includes the following steps:
  • the plurality of pure water guide cloths comprise a main pure water guide cloth and a plurality of sub-pure water guide cloths
  • each of the filter membranes is at least one;
  • one end of the main pure water guide cloth may be firstly connected to the outer peripheral surface of the center tube, and then the plurality of sub-pure water guide cloths are stacked and one end of the plurality of sub-pure water guide cloths are sequentially misaligned, Affecting the preparation of the filter membrane module.
  • a filtration membrane module having rich functions, strong applicability, and good water purification effect can be prepared, and since the filtration membrane can be positioned by the pure water guide cloth, The positional accuracy of the filter membrane can be improved and the assembly of the filter membrane can be facilitated.
  • the preparation method of the filtration membrane module according to the embodiment of the invention has the advantages of convenient positioning, high reliability and the like.
  • the filter membrane is folded in half and clamped into the water barrier web before the filter membrane is inserted into the adjacent pure water guide.
  • the filter membrane is folded in half and clamped into the water barrier web before the filter membrane is inserted into the adjacent pure water guide.
  • the filtration membrane comprises at least two reverse osmosis membranes or at least one reverse osmosis membrane and at least one nanofiltration membrane.
  • the two kinds of reverse osmosis membranes can be mixed and rolled or mixed with a reverse osmosis membrane and a nanofiltration membrane to form the filtration membrane module, which improves the application breadth of the reverse osmosis membrane and eliminates the reverse osmosis membrane itself.
  • the performance is limited, and the functional diversity of the filter membrane module can be further improved by adjusting the number of two reverse osmosis membranes or adjusting the function of the filtration membrane module by adjusting the number of reverse osmosis membranes and nanofiltration membranes.
  • the filter membrane comprises at least one flux type membrane and at least one desalted membrane.
  • the filtration membrane module has a large flux and a high salt rejection rate at the same time, but also the salt rejection rate of the filtration membrane module can be adjusted by adjusting the ratio between the desalting membrane and the desalting membrane. The ratio between the fluxes.
  • a length of the connection region of the plurality of sub-pure water guides in the length direction of the main pure water guide cloth is less than or equal to a circumference of the center tube.
  • a plurality of the sub-pure water guides are joined by fusion welding, and the one end of the main pure water guide cloth and the center tube are connected by ultrasonic welding.
  • the joint strength between the pure water guides can be ensured, the joint strength between the main pure water guide cloth and the center tube is ensured, and the center tube and the pure water can be prevented during welding.
  • the guide cloth is damaged to ensure the structural strength and sealing of the center tube.
  • each of the filter membranes inserted is glued on the surface of the inserted filter membrane.
  • the filter membrane and the pure water guide cloth can be joined by gluing to simplify the operation of joining the filter membrane sheet and the pure water guide cloth to improve assembly efficiency of the filter membrane module.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane.
  • the filtration membranes are inserted in two orders.
  • the first filter membrane, one second filter membrane and the two first filter membranes are cycled for one unit group. It is thus possible for the water to pass through the four first filter membranes for each passage of the second filter membrane to effect filtration of the water.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane.
  • the filtration membrane is inserted in a sequence of one.
  • the first filter membrane, the two second filter membranes, and one first filter membrane are cycled for one unit group. This makes it possible for water to pass through the two first filter membranes after passing through the two second filter membranes, as well as filtering the water.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane.
  • the filtration membrane is inserted in a sequence of one.
  • the first filter membrane and a second filter membrane are cycled for one unit group. It is thus possible for water to pass through one of the first filter membranes after passing through one of the second filter membranes, as well as filtering the water.
  • Root The method for preparing a filtration membrane module according to an embodiment of the present invention includes the following steps:
  • An outer circumferential surface of the central tube is equally divided along the circumferential direction of the central tube and marked at each of the aliquots, wherein the number of aliquots coincides with the number of the pure water guide cloth;
  • each of the filter membranes is at least one;
  • a filtration membrane module having rich functions, strong applicability, and good water purification effect can be prepared, and since the filtration membrane can be positioned by the pure water guide cloth, The positional accuracy of the filter membrane can be improved and the assembly of the filter membrane can be facilitated.
  • the preparation method of the filtration membrane module according to the embodiment of the invention has the advantages of convenient positioning, high reliability and the like.
  • the filter membrane is folded in half and clamped into the water barrier web before the filter membrane is inserted into the adjacent pure water guide.
  • the filter membrane is folded in half and clamped into the water barrier web before the filter membrane is inserted into the adjacent pure water guide.
  • the filtration membrane comprises at least two reverse osmosis membranes or at least one reverse osmosis membrane and at least one nanofiltration membrane.
  • the two kinds of reverse osmosis membranes can be mixed and rolled or mixed with a reverse osmosis membrane and a nanofiltration membrane to form the filtration membrane module, which improves the application breadth of the reverse osmosis membrane and eliminates the reverse osmosis membrane itself.
  • the performance is limited, and the functional diversity of the filter membrane module can be further improved by adjusting the number of two reverse osmosis membranes or adjusting the function of the filtration membrane module by adjusting the number of reverse osmosis membranes and nanofiltration membranes.
  • the filter membrane comprises at least one flux type membrane and at least one desalted membrane.
  • the filtration membrane module has a large flux and a high salt rejection rate at the same time, but also the salt rejection rate of the filtration membrane module can be adjusted by adjusting the ratio between the desalting membrane and the desalting membrane. The ratio between the fluxes.
  • the one pure water guide cloth and the center tube are connected by ultrasonic welding. Thereby, the connection strength between the pure water guide cloth and the center tube can be ensured, and damage of the center tube and the pure water guide cloth during welding can be prevented, and the structural strength and sealing of the center tube can be ensured. Sex.
  • the filter membranes are two and are respectively a first filter membrane and a second filter.
  • the filter membrane in the winding process, the insertion order of the filtration membrane is cyclically performed by two first filtration membranes, one second filtration membrane and two first filtration membranes as one unit group. It is thus possible for the water to pass through the four first filter membranes for each passage of the second filter membrane to effect filtration of the water.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane.
  • the filtration membrane is inserted in a sequence of one.
  • the first filter membrane, the two second filter membranes, and one first filter membrane are cycled for one unit group. This makes it possible for water to pass through the two first filter membranes after passing through the two second filter membranes, as well as filtering the water.
  • the filter membranes are two and are respectively a first filter membrane and a second filter membrane.
  • the filtration membrane is inserted in a sequence of one.
  • the first filter membrane and a second filter membrane are cycled for one unit group. It is thus possible for water to pass through one of the first filter membranes after passing through one of the second filter membranes, as well as filtering the water.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them.
  • the first feature "above”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature includes the first feature in the second The sign is directly below and obliquely below, or simply indicates that the first feature level is less than the second feature.

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Abstract

一种过滤膜组件(1)和具有它的净水设备，过滤膜组件(1)包括：中心管(100)，中心管(100)的侧壁设有过水口(110)且端部设有进出水口(120)；多个纯水导布(200)，多个纯水导布(200)卷绕在中心管(100)的外周且沿中心管(100)的径向层叠；至少两种过滤膜片(300)，每种过滤膜片(300)为至少一个，多个过滤膜片(300)卷绕在中心管(100)的外周且每个过滤膜片(300)在中心管(100)的径向上位于相邻纯水导布(200)之间。

Description

过滤膜组件和具有它的净水设备 技术领域
本发明涉及电器制造技术领域，具体而言，涉及一种过滤膜组件和具有所述过滤膜组件的净水设备。
背景技术
家用净水器等净水系统采用滤芯对水进行过滤以实现对水的净化。
相关技术中诸如反渗透滤芯的复合滤芯，其功能比较单一，在对水进行过滤时对各项性能的要求无法同时满足，例如，对水的通量和脱盐率不可兼得，通量大的滤芯脱盐率低，脱盐率高的滤芯通量小。
发明内容
本发明旨在至少在一定程度上解决相关技术中的上述技术问题之一。为此，本发明提出一种过滤膜组件,该过滤膜组件具有功能丰富多样、适用性广、可靠性强、净水效果好等优点。
本发明还提出一种具有所述过滤膜组件的净水设备。
为实现上述目的，根据本发明的第一方面的实施例提出一种过滤膜组件，所述过滤膜组件包括：中心管，所述中心管的侧壁设有过水口且端部设有进出水口；多个纯水导布，多个所述纯水导布卷绕在所述中心管的外周且沿所述中心管的径向层叠；至少两种过滤膜片，每种所述过滤膜片为至少一个，多个所述过滤膜片卷绕在所述中心管的外周且每个所述过滤膜片在所述中心管的径向上位于相邻所述纯水导布之间。
根据本发明实施例的过滤膜组件，具有功能丰富多样、适用性广、可靠性强、净水效果好等优点。
另外，根据本发明上述实施例的过滤膜组件还可以具有如下附加的技术特征：
根据本发明的一个实施例，多个所述纯水导布包括主纯水导布和多个子纯水导布，所述主纯水导布的一端与所述中心管相连，多个所述子纯水导布沿所述主纯水导布的厚度方向叠置且沿所述主纯水导布的长度方向依次错位连接，多个所述子纯水导布中的至少一个连接在所述主纯水导布上且每个所述子纯水导布在所述主纯水导布的长度方向上与所述主纯水导布的所述一端间隔开。
根据本发明的一个实施例，多个所述子纯水导布的连接区域在所述中心管的周向上的长度小于或等于所述中心管的周长。
根据本发明的一个实施例，多个所述子纯水导布均连接在所述主纯水导布上，或相邻所述纯水导布互相连接。
根据本发明的一个实施例，多个所述纯水导布的一端沿所述中心管的周向等间距设置且多个所述纯水导布中的一个的所述一端与所述中心管相连。
根据本发明的一个实施例，每个所述过滤膜片对折且夹装有进水隔网。
根据本发明的一个实施例，在所述中心管的径向上相邻的所述过滤膜片和所述纯水导布通过胶层粘接。
根据本发明的一个实施例，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，所述过滤膜片沿所述中心管的径向排列成至少一个单元组，每个所述单元组包括沿所述中心管的径向依次排列的两个第一过滤膜片、一个第二过滤膜片和两个第一过滤膜片。
根据本发明的一个实施例，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，所述过滤膜片沿所述中心管的径向排列成至少一个单元组，每个所述单元组包括沿所述中心管的径向依次排列的一个第一过滤膜片、两个第二过滤膜片和一个第一过滤膜片。
根据本发明的一个实施例，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，所述过滤膜片沿所述中心管的径向排列成至少一个单元组，每个所述单元组包括沿所述中心管的径向依次排列的一个第一过滤膜片和一个第二过滤膜片。
根据本发明的一个实施例，所述过滤膜片包括至少两种反渗透膜片或至少一种反渗透膜片和至少一种纳滤膜片。
根据本发明的一个实施例，所述过滤膜片包括至少一个通量型膜片和至少一个脱盐型膜片。
根据本发明的一个实施例，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，且所述第一过滤膜片的数量占所述过滤膜片总数量的25％-50％。
根据本发明的一个实施例，所述第一过滤膜片为通量型反渗透膜片和脱盐型反渗透膜片的其中之一，所述第二过滤膜片为通量型反渗透膜片和脱盐型反渗透膜片的其中另一；或所述第一过滤膜片为纳滤膜片，所述第二过滤膜片为反渗透膜片。
根据本发明的一个实施例，多个所述子纯水导布中的每一个依次连接在前一子纯水导布或所述主纯水导布的外侧。
根据本发明的第二方面的实施例提出一种净水设备，所述净水设备包括根据本发明的第一方面的实施例所述的过滤膜组件。
根据本发明实施例的净水设备，通过利用根据本发明的第一方面的实施例所述的过滤膜组件，具有净水效果好、功能丰富等优点。
附图说明
图1是根据本发明一个实施例的过滤膜组件在制备过程中的局部结构示意图。
图2是根据本发明一个实施例的过滤膜组件在制备过程中的局部结构示意图。
图3是根据本发明一个实施例的过滤膜组件在制备过程中的局部结构示意图。
图4是根据本发明一个实施例的过滤膜组件在制备过程中的局部结构示意图。
图5是根据本发明另一个实施例的过滤膜组件在制备过程中的结构示意图。
图6是根据本发明另一个实施例的过滤膜组件在制备过程中的局部结构示意图。
图7是根据本发明另一个实施例的过滤膜组件在制备过程中的局部结构示意图。
图8是根据本发明实施例的一种过滤膜组件的制备方法的流程图。
图9是根据本发明实施例的另一种过滤膜组件的制备方法的流程图。
附图标记：过滤膜组件1、中心管100、过水口110、进出水口120、纯水导布200、主纯水导布210、子纯水导布220、过滤膜片300、第一过滤膜片310、第二过滤膜片320、进水隔网400、连接区域在中心管的周向上的长度a。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
本发明基于本申请的发明人对以下事实和问题的发现作出的：相关技术中诸如反渗透滤芯的复合滤芯，功能单一，在对水进行过滤时对各项性能的要求无法同时满足。但是，本申请的发明人通过大量的研究和实验发现，反渗透滤芯内的过滤膜，在滤芯内缠绕成多层以用于对水进行过滤，由于滤膜本身的通量和脱盐率不可兼得，使采用对应滤膜的滤芯的通量和脱盐率不可兼得，也就是说，采用大通量的过滤膜的反渗透滤芯，其脱盐率低；采用高脱盐率的过滤膜的反渗透滤芯，其通量小。
下面参考附图描述根据本发明实施例的过滤膜组件1。
如图1-图7所示，根据本发明实施例的过滤膜组件1包括中心管100、多个纯水导布200和至少两种过滤膜片300。
中心管100的侧壁设有过水口110且端部设有进出水口120。多个纯水导布200卷绕在中心管100的外周且沿中心管100的径向层叠。每种过滤膜片300为至少一个，多个过滤膜片300卷绕在中心管100的外周且每个过滤膜片300在中心管100的径向上位于相邻纯水导布200之间。这里需要理解的是，纯水导布200的个数根据过滤膜片300的种类和个数调整，以保证每个过滤膜片300均能够位于相邻纯水导布200之间，当过水口110进水 时，进出水口120出水，当进出水口120进水时，过水口110出水。
根据本发明实施例的过滤膜组件1，通过设置至少两种过滤膜片300，可以利用至少两种过滤膜片300对水进行过滤。这样可以选择至少两种具有不同功能的过滤膜片300对水进行过滤，例如，可以选择一种具有大通量的过滤膜片300和一种具有高脱盐率的过滤膜片300，不仅可以保证对流经过滤膜组件1的水的脱盐率，而且可以提高水在过滤膜组件1的通量。由此不仅可以通过选择不同种类的过滤膜片300实现对应的功能，而且可以通过调整不同种类的过滤膜片300之间的数量调节过滤膜组件1的净水效果，例如通过调整大通量的过滤膜片300和高脱盐率的过滤膜片300的数量调整过滤膜组件1的脱盐率和通量大小，从而提高过滤膜组件1的功能的多样性，提高过滤膜组件1的适用性。
并且，通过设置多个纯水导布200，可以使每个过滤膜片300在中心管100的径向上位于相邻纯水导布200之间，这样可以利用纯水导布200对过滤膜片300进行定位，不仅可以便于将过滤膜片300卷绕在中心管100上，而且可以提高过滤膜片300卷绕后的稳定性。
此外，由于多个纯水导布200卷绕在中心管100的外周且沿中心管100的径向层叠，每个过滤膜片300在中心管100的径向上位于相邻纯水导布200之间。这样可以利用纯水导布200对水进行导向，在水经过所有过滤膜片300过滤后利用多个纯水导布200将水汇集到中心管100处，过滤后的水通过过水口110进入中心管100后通过进出水口120排出以供用户取用。由此不仅可以保证水流能够经过每个过滤膜片300，以保证对水的净化效果，而且可以便于对过滤后的水进行导向和收集，以便于水通过过滤膜组件1。
因此，根据本发明实施例的过滤膜组件1具有功能丰富多样、可靠性强、净水效果好等优点。
下面参考附图描述根据本发明具体实施例的过滤膜组件1。
在本发明的一些具体实施例中，如图1-图7所示，根据本发明实施例的过滤膜组件1包括中心管100、多个纯水导布200和至少两种过滤膜片300。
在本发明的一些具体实施例中，如图1-图4所示，多个纯水导布200包括主纯水导布210和多个子纯水导布220，主纯水导布210的一端与中心管100相连，多个子纯水导布220沿主纯水导布210的厚度方向叠置且沿主纯水导布210的长度方向依次错位连接，多个子纯水导布220中的至少一个连接在主纯水导布210上且每个子纯水导布220在主纯水导布210的长度方向上与主纯水导布210的所述一端间隔开。具体而言，多个子纯水导布220可以连接在主纯水导布210的外侧面上(内外方向如图2、图3、图6和图7中的箭头A所示)。这样可以使多个子纯水导布220与主纯水导布210相连，使主纯水导布210与中心管100相连，以实现多个纯水导布200的连接。
有利地，如图1所示，多个子纯水导布220的连接区域在中心管100的周向上的长度a 小于或等于中心管100的周长。由此可以便于控制每个纯水导布200在中心管100上的位置，从而便于控制每个过滤膜片300的位置，以保证过滤膜组件1的净水效果。
可选地，如图1-图4所示，多个子纯水导布220均连接在主纯水导布210上，或相邻纯水导布200互相连接。由此均可以实现纯水导布200的连接。
具体地，主纯水导布210的所述一端通过超声波焊接与中心管100相连，多个子纯水导布220通过熔焊连接。由此不仅可以保证纯水导布200之间的连接强度，保证主纯水导布210与中心管100之间的连接强度，而且可以防止焊接时中心管100和纯水导布200发生损坏，保证中心管100的结构强度和密封性。
更为具体地，如图1-图4所示，多个子纯水导布220依次连接，且多个子纯水导布220中的每一个连接在前一子纯水导布220或主纯水导布210的外侧。换言之，与主纯水导布210相邻的子纯水导布220连接在主纯水导布210的外侧面上，其余每个子纯水导布220依次连接在前一个子纯水导布220的外侧面上。
具体而言，可以先将多个子纯水导布220通过熔焊错位连接，后将主纯水导布210通过超声波焊接于中心管100处，或者先将主纯水导布210通过超声波焊接于中心管100处，再将多个子纯水导布220通过熔焊错位连接。之后将主纯水导布210拉直绷紧，将错位连接完成的多个子纯水导布220连接在主纯水导布210上，与中心管100最近的子纯水导布220与主纯水导布210的连接处与中心管100间隔预定距离。多个纯水导布200粘接完成后，从主纯水导布210处插入过滤膜片300及进水隔网400，在过滤膜片300上打胶固定，再依次连接多个子纯水导布220，在相邻两个纯水导布200之间插入过滤膜片300及进水隔网400并打胶固定。全部过滤膜片300固定完毕后，将纯水导布200与过滤膜片300沿同一方向卷绕在中心管100上，完成卷膜过程。
在本发明的另一些具体实施例中，如图5-图7所示，多个纯水导布200的一端沿中心管100的周向等间距设置且多个纯水导布200中的一个的所述一端与中心管100相连。由此同样可以实现多个纯水导布200与中心管100的连接。
具体地，多个纯水导布200中的所述一个的所述一端通过超声波焊接与中心管100相连。这样不仅可以保证中心管100和与其相连的纯水导布200的连接强度，而且可以防止焊接时中心管100和纯水导布200发生损坏，保证中心管100的密封性和结构强度。
具体而言，首先中心管100周长等分并标记，之后将其中一片纯水导布200通过超声波焊接与中心管100任意一标记处，焊接完毕后以此纯水导布200为支撑，以中心管100为轴开始卷膜，将作为支撑的纯水导布200打胶，插入过滤膜片300及进水隔网400，卷绕至标记处再次插入纯水导布200并打胶、放入过滤膜片300及进水隔网400。重复以上步骤直至纯水导布200和过滤膜片300卷制完成。
图2-图4、图6和图7示出了根据本发明一些具体实施例的过滤膜组件1。如图2-图4、图6和图7所示，每个过滤膜片300对折且夹装有进水隔网400。由此不仅可以便于过滤膜片300和进水隔网400的装配，而且可以提高过滤膜组件1的净水效果。
可选地，在中心管100的径向上相邻的过滤膜片300和纯水导布200通过胶层粘接。由此可以简化连接过滤膜片300和纯水导布200的操作，以提高过滤膜组件1的装配效率。
在本发明的一些具体实施例中，过滤膜片300为两种且分别为第一过滤膜片310和第二过滤膜片320，过滤膜片300沿中心管100的径向排列成至少一个单元组，每个所述单元组包括沿中心管100的径向依次排列的两个第一过滤膜片310、一个第二过滤膜片320和两个第一过滤膜片310。由此可以使水每经过一个第二过滤膜片320需要经过四个第一过滤膜片310，以实现对水的过滤。
在本发明的一些具体实施例中，过滤膜片300为两种且分别为第一过滤膜片310和第二过滤膜片320，过滤膜片300沿中心管100的径向排列成至少一个单元组，每个所述单元组包括沿中心管100的径向依次排列的一个第一过滤膜片310、两个第二过滤膜片320和一个第一过滤膜片310。由此可以使水每经过两个第二过滤膜片320需要经过两个第一过滤膜片310，同样可以实现对水的过滤。
在本发明的另一些具体实施例中，如图4所示，过滤膜片300为两种且分别为第一过滤膜片310和第二过滤膜片320，过滤膜片300沿中心管100的径向排列成至少一个单元组，每个所述单元组包括沿中心管100的径向依次排列的一个第一过滤膜片310和一个第二过滤膜片320。由此可以使水每经过一个第二过滤膜片320需要经过一个第一过滤膜片310，同样可以实现对水的过滤。
本领域的技术人员可以理解的是，在过滤膜片300为两种且分别为第一过滤膜片310和第二过滤膜片320时，第一过滤膜片310和第二过滤膜片320之间的数量比例和排列方式可以根据实际需要进行调整。
在本发明的一些具体实施例中，过滤膜片300包括至少两种反渗透膜片或至少一种反渗透膜片和至少一种纳滤膜片。这样可以使过滤膜组件1能够采用两种反渗透膜片混合卷制或采用反渗透膜片与纳滤膜片混合卷制，提升了反渗透膜片的应用广度，消除了反渗透膜片本身的性能局限，而且可以通过调节两种反渗透膜片的数量或调整反渗透膜片与纳滤膜片的数量调整过滤膜组件1的功能，进一步提高过滤膜组件1的功能多样性。
在本发明的另一些具体实施例中，过滤膜片300包括至少一个脱盐型膜片和至少一个脱盐型膜片。由此不仅可以使过滤膜组件1同时具有较大通量和较高的脱盐率，而且可以通过调整脱盐型膜片与脱盐型膜片之间的比例调整过滤膜组件1的脱盐率和通量之间的比例。
在本发明的一个具体实施例中，过滤膜片300为两种且分别为第一过滤膜片310和第二过滤膜片320，且第一过滤膜片310的数量占过滤膜片300总数量的25％-50％。这样可以保证每种所述过滤膜片的过滤效果，从而便于实现过滤膜组件1的不同功能。
具体地，第一过滤膜片310为通量型反渗透膜片和脱盐型反渗透膜片的其中之一，第二过滤膜片320为通量型反渗透膜片和脱盐型反渗透膜片的其中另一。或第一过滤膜片310为纳滤膜片，第二过滤膜片320为反渗透膜片。这样可以使过滤膜组件1不仅具有高脱盐率，而且具有大通量。
下面描述根据本发明实施例的净水设备。根据本发明实施例的净水设备包括根据本发明上述实施例的过滤膜组件1。
根据本发明实施例的净水设备，通过利用根据本发明上述实施例的过滤膜组件1，具有净水效果好、功能丰富等优点。
下面参考图1-图4和图8描述根据本发明实施例的一种过滤膜组件的制备方法。根据本发明实施例的过滤膜组件的制备方法包括以下步骤：
提供中心管和多个纯水导布，其中，多个所述纯水导布包括主纯水导布和多个子纯水导布；
将多个子纯水导布叠置且多个子纯水导布的一端依次错位连接；
将主纯水导布的一端连接在中心管的外周面上；
将多个所述子纯水导布中的至少一个连接在所述主纯水导布上，且多个所述子纯水导布中与所述中心管最近的一个与所述中心管间隔开；
提供至少两种过滤膜片且每种所述过滤膜片为至少一个；
将所述主纯水导布和多个所述子纯水导布卷绕在所述中心管上，在卷绕过程中，沿从所述主纯水导布的所述一端至另一端的方向将多个所述过滤膜片依次插入到相邻纯水导布之间。
这里需要理解的是，也可以先将主纯水导布的一端连接在中心管的外周面上，再将多个子纯水导布叠置且多个子纯水导布的一端依次错位连接，不影响所述过滤膜组件的制备。
根据本发明实施例的过滤膜组件的制备方法，能够制备功能丰富、适用性强、净水效果好的过滤膜组件，并且由于所述过滤膜片能够通过所述纯水导布进行定位，不仅可以提高所述过滤膜片的位置精度，而且可以便于所述过滤膜片的装配。
因此，根据本发明实施例的过滤膜组件的制备方法，具有定位方便、可靠性强等优点。
有利地，在所述过滤膜片插入相邻纯水导布前，将所述过滤膜片对折且夹装进水隔网。由此不仅可以便于所述进水隔网和所述过滤膜片的装配，而且可以提高所述过滤膜组件的净水效果。
在本发明的一些具体实施例中，所述过滤膜片包括至少两种反渗透膜片或至少一种反渗透膜片和至少一种纳滤膜片。这样可以利用两种反渗透膜片混合卷制或采用反渗透膜片与纳滤膜片混合卷制成所述过滤膜组件，提升了反渗透膜片的应用广度，消除了反渗透膜片本身的性能局限，而且可以通过调节两种反渗透膜片的数量或调整反渗透膜片与纳滤膜片的数量调整所述过滤膜组件的功能，进一步提高所述过滤膜组件的功能多样性。
在本发明的一些具体实施例中，所述过滤膜包括至少一个通量型膜片和至少一个脱盐型膜片。由此不仅可以使所述过滤膜组件同时具有较大通量和较高的脱盐率，而且可以通过调整脱盐型膜片与脱盐型膜片之间的比例调整所述过滤膜组件的脱盐率和通量之间的比例。
可选地，多个所述子纯水导布的连接区域在所述主纯水导布的长度方向上的长度小于或等于所述中心管的周长。由此可以便于控制每个所述纯水导布在所述中心管上的位置，从而便于控制每个所述过滤膜片的位置，以保证所述过滤膜组件的净水效果。
具体地，通过熔焊连接多个所述子纯水导布，通过超声波焊接连接所述主纯水导布的所述一端和所述中心管。由此不仅可以保证所述纯水导布之间的连接强度，保证所述主纯水导布与所述中心管之间的连接强度，而且可以防止焊接时所述中心管和所述纯水导布发生损坏，保证所述中心管的结构强度和密封性。
其中，每插入一个所述过滤膜片均在该插入的过滤膜片的表面打胶。由此可以通过胶粘连接所述过滤膜片和所述纯水导布，以简化连接所述过滤膜片和所述纯水导布的操作，以提高所述过滤膜组件的装配效率。
在本发明的一些具体实施例中，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，在卷绕过程中，所述过滤膜片的插入顺序以两个第一过滤膜片、一个第二过滤膜片和两个第一过滤膜片为一个单元组循环进行。由此可以使水每经过一个所述第二过滤膜片需要经过四个所述第一过滤膜片，以实现对水的过滤。
在本发明的另一些具体实施例中，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，在卷绕过程中，所述过滤膜片的插入顺序以一个第一过滤膜片、两个第二过滤膜片和一个第一过滤膜片为一个单元组循环进行。由此可以使水每经过两个所述第二过滤膜片需要经过两个所述第一过滤膜片，同样可以实现对水的过滤。
在本发明的另一些具体实施例中，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，在卷绕过程中，所述过滤膜片的插入顺序以一个第一过滤膜片和一个第二过滤膜片为一个单元组循环进行。由此可以使水每经过一个所述第二过滤膜片需要经过一个所述第一过滤膜片，同样可以实现对水的过滤。
下面参考图5-图7和图9描述根据本发明实施例的另一种过滤膜组件的制备方法。根 据本发明实施例的过滤膜组件的制备方法包括以下步骤：
提供中心管和多个纯水导布；
沿所述中心管的周向上将所述中心管的外周面等分并在每个等分点处标记，其中，等分点的数量与所述纯水导布的数量一致；
将一个所述纯水导布的一端连接在所述中心管的任意一个等分点处；
提供至少两种过滤膜片且每种所述过滤膜片为至少一个；
在所述一个纯水导布和所述中心管的连接处插入一个过滤膜片，将所述一个纯水导布和插入的过滤膜片卷绕在所述中心管上，在卷绕过程中，于每个标记处均依次插入一个纯水导布和一个所述过滤膜片。
根据本发明实施例的过滤膜组件的制备方法，能够制备功能丰富、适用性强、净水效果好的过滤膜组件，并且由于所述过滤膜片能够通过所述纯水导布进行定位，不仅可以提高所述过滤膜片的位置精度，而且可以便于所述过滤膜片的装配。
因此，根据本发明实施例的过滤膜组件的制备方法，具有定位方便、可靠性强等优点。
有利地，在所述过滤膜片插入相邻纯水导布前，将所述过滤膜片对折且夹装进水隔网。由此不仅可以便于所述进水隔网和所述过滤膜片的装配，而且可以提高所述过滤膜组件的净水效果。
在本发明的一些具体实施例中，所述过滤膜片包括至少两种反渗透膜片或至少一种反渗透膜片和至少一种纳滤膜片。这样可以利用两种反渗透膜片混合卷制或采用反渗透膜片与纳滤膜片混合卷制成所述过滤膜组件，提升了反渗透膜片的应用广度，消除了反渗透膜片本身的性能局限，而且可以通过调节两种反渗透膜片的数量或调整反渗透膜片与纳滤膜片的数量调整所述过滤膜组件的功能，进一步提高所述过滤膜组件的功能多样性。
在本发明的一些具体实施例中，所述过滤膜包括至少一个通量型膜片和至少一个脱盐型膜片。由此不仅可以使所述过滤膜组件同时具有较大通量和较高的脱盐率，而且可以通过调整脱盐型膜片与脱盐型膜片之间的比例调整所述过滤膜组件的脱盐率和通量之间的比例。
具体地，通过超声波焊接连接所述一个纯水导布和所述中心管。由此可以保证所述纯水导布与所述中心管之间的连接强度，而且可以防止焊接时所述中心管和所述纯水导布发生损坏，保证所述中心管的结构强度和密封性。
其中，每个所述过滤膜片插入前，在对应的所述纯水导布上打胶。由此可以通过胶粘连接所述过滤膜片和所述纯水导布，以简化连接所述过滤膜片和所述纯水导布的操作，以提高所述过滤膜组件的装配效率。
在本发明的一些具体实施例中，所述过滤膜片为两种且分别为第一过滤膜片和第二过 滤膜片，在卷绕过程中，所述过滤膜片的插入顺序以两个第一过滤膜片、一个第二过滤膜片和两个第一过滤膜片为一个单元组循环进行。由此可以使水每经过一个所述第二过滤膜片需要经过四个所述第一过滤膜片，以实现对水的过滤。
在本发明的另一些具体实施例中，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，在卷绕过程中，所述过滤膜片的插入顺序以一个第一过滤膜片、两个第二过滤膜片和一个第一过滤膜片为一个单元组循环进行。由此可以使水每经过两个所述第二过滤膜片需要经过两个所述第一过滤膜片，同样可以实现对水的过滤。
在本发明的另一些具体实施例中，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，在卷绕过程中，所述过滤膜片的插入顺序以一个第一过滤膜片和一个第二过滤膜片为一个单元组循环进行。由此可以使水每经过一个所述第二过滤膜片需要经过一个所述第一过滤膜片，同样可以实现对水的过滤。
根据本发明实施例的净水设备的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特 征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。此外，本领域的技术人员可以将本说明书中描述的不同实施例或示例进行接合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (16)

  1. 一种过滤膜组件，其特征在于，包括：
    中心管，所述中心管的侧壁设有过水口且端部设有进出水口；
    多个纯水导布，多个所述纯水导布卷绕在所述中心管的外周且沿所述中心管的径向层叠；
    至少两种过滤膜片，每种所述过滤膜片为至少一个，多个所述过滤膜片卷绕在所述中心管的外周且每个所述过滤膜片在所述中心管的径向上位于相邻所述纯水导布之间。
  2. 根据权利要求1所述的过滤膜组件，其特征在于，多个所述纯水导布包括主纯水导布和多个子纯水导布，所述主纯水导布的一端与所述中心管相连，多个所述子纯水导布沿所述主纯水导布的厚度方向叠置且沿所述主纯水导布的长度方向依次错位连接，多个所述子纯水导布中的至少一个连接在所述主纯水导布上且每个所述子纯水导布在所述主纯水导布的长度方向上与所述主纯水导布的所述一端间隔开。
  3. 根据权利要求2所述的过滤膜组件，其特征在于，多个所述子纯水导布的连接区域在所述中心管的周向上的长度小于或等于所述中心管的周长。
  4. 根据权利要求2所述的过滤膜组件，其特征在于，多个所述子纯水导布均连接在所述主纯水导布上，或相邻所述纯水导布互相连接。
  5. 根据权利要求1所述的过滤膜组件，其特征在于，多个所述纯水导布的一端沿所述中心管的周向等间距设置且多个所述纯水导布中的一个的所述一端与所述中心管相连。
  6. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，每个所述过滤膜片对折且夹装有进水隔网。
  7. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，在所述中心管的径向上相邻的所述过滤膜片和所述纯水导布通过胶层粘接。
  8. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，所述过滤膜片沿所述中心管的径向排列成至少一个单元组，每个所述单元组包括沿所述中心管的径向依次排列的两个第一过滤膜片、一个第二过滤膜片和两个第一过滤膜片。
  9. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，所述过滤膜片沿所述中心管的径向排列成至少一个单元组，每个所述单元组包括沿所述中心管的径向依次排列的一个第一过滤膜片、两个第二过滤膜片和一个第一过滤膜片。
  10. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，所述过滤膜片沿所述中心管的径向排列成至少一个单元组，每个所述单元组包括沿所述中心管的径向依次排列的一个第一过滤膜片和一个第二过滤膜片。
  11. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，所述过滤膜片包括至少两种反渗透膜片或至少一种反渗透膜片和至少一种纳滤膜片。
  12. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，所述过滤膜片包括至少一个通量型膜片和至少一个脱盐型膜片。
  13. 根据权利要求1-5中任一项所述的过滤膜组件，其特征在于，所述过滤膜片为两种且分别为第一过滤膜片和第二过滤膜片，且所述第一过滤膜片的数量占所述过滤膜片总数量的25％-50％。
  14. 根据权利要求13所述的过滤膜组件，其特征在于，所述第一过滤膜片为通量型反渗透膜片和脱盐型反渗透膜片的其中之一，所述第二过滤膜片为通量型反渗透膜片和脱盐型反渗透膜片的其中另一；或
    所述第一过滤膜片为纳滤膜片，所述第二过滤膜片为反渗透膜片。
  15. 根据权利要求2-5中任一项所述的过滤膜组件，其特征在于，多个所述子纯水导布中的每一个依次连接在前一子纯水导布或所述主纯水导布的外侧。
  16. 一种净水设备，其特征在于，包括权利要求1至15中任一项所述的过滤膜组件。
PCT/CN2016/080700 2015-12-30 2016-04-29 过滤膜组件和具有它的净水设备 WO2017113555A1 (zh)

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CN115159710A (zh) * 2022-07-29 2022-10-11 佛山市美的清湖净水设备有限公司 滤芯装置及净水设备

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JPH11207155A (ja) * 1998-01-27 1999-08-03 Kurita Water Ind Ltd 海水等の淡水化装置
CN102170961A (zh) * 2008-06-20 2011-08-31 海德能公司 带有灭菌进料垫片的错流过滤装置
CN104941448A (zh) * 2015-07-07 2015-09-30 珠海格力电器股份有限公司 反渗透膜元件
CN105435637A (zh) * 2015-12-30 2016-03-30 佛山市美的清湖净水设备有限公司 过滤膜组件和具有它的净水设备

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JPH11207155A (ja) * 1998-01-27 1999-08-03 Kurita Water Ind Ltd 海水等の淡水化装置
CN102170961A (zh) * 2008-06-20 2011-08-31 海德能公司 带有灭菌进料垫片的错流过滤装置
CN104941448A (zh) * 2015-07-07 2015-09-30 珠海格力电器股份有限公司 反渗透膜元件
CN105435637A (zh) * 2015-12-30 2016-03-30 佛山市美的清湖净水设备有限公司 过滤膜组件和具有它的净水设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115159710A (zh) * 2022-07-29 2022-10-11 佛山市美的清湖净水设备有限公司 滤芯装置及净水设备
CN115159710B (zh) * 2022-07-29 2023-09-22 佛山市美的清湖净水设备有限公司 滤芯装置及净水设备

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