WO2016082145A1 - 一体化复合卷式膜 - Google Patents

一体化复合卷式膜 Download PDF

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Publication number
WO2016082145A1
WO2016082145A1 PCT/CN2014/092349 CN2014092349W WO2016082145A1 WO 2016082145 A1 WO2016082145 A1 WO 2016082145A1 CN 2014092349 W CN2014092349 W CN 2014092349W WO 2016082145 A1 WO2016082145 A1 WO 2016082145A1
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WO
WIPO (PCT)
Prior art keywords
roll film
central
integrated composite
tube
center tube
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Application number
PCT/CN2014/092349
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English (en)
French (fr)
Inventor
朴济成
Original Assignee
韩佳（上海）环保设备有限公司
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Application filed by 韩佳（上海）环保设备有限公司 filed Critical 韩佳（上海）环保设备有限公司
Priority to US14/438,967 priority Critical patent/US20160339392A1/en
Publication of WO2016082145A1 publication Critical patent/WO2016082145A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/10—Spiral-wound membrane modules
    • 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
    • B01D63/107—Specific properties of the central tube or the permeate channel
    • 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
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/13—Specific connectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/40—Adsorbents within the flow path
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • C02F2201/006—Cartridges

Definitions

  • the present invention relates to a water filtration device and, more particularly, to an integrated composite roll membrane structure.
  • the structure of the existing water purification device is: winding a diaphragm around the center tube, and then installing the center tube in the membrane case.
  • the diameter of the membrane shell is standard and fixed in the industry.
  • the inner diameter of the center tube is usually small, and a plurality of water inlet holes are formed in the center tube.
  • the water filtered through the membrane enters the central lumen through the inlet aperture. After the tap water is filtered through the membrane, the salt, heavy metal, and the like can be removed, but the pH is not removed, the pH is adjusted, and the pH is weakly acidic.
  • the post-activated carbon filter or other filter material is used for absorbing organic matter, deodorizing, sterilizing, and adjusting the pH to alkaline, which is more beneficial to the health of the drinker.
  • the whole structure of the rear filter element is bound to cause the bulk of the whole machine, high production cost and waste of resources.
  • a partition plate is arranged inside the central pipe to divide the central pipe into two parts. Since the existing center tube has a small inner diameter and is elongated, when the hollow tube of the center tube is hollowed out, in order to avoid the inconsistent deformation of the inner diameter of the entire center tube due to the shaking of the elongated center tube during the processing, The partition plate is disposed near the center of the center pipe. Among the two parts separated by the partition plate, a part of them is provided with a water inlet hole, and the internal cavity thereof serves as a pure water inlet chamber. The other part does not work. This structure causes the number of water inlet holes opened in the center pipe to be small, and the amount of water inflow is small, thereby affecting the speed of the filtered water flow and the amount of water.
  • the present invention is directed to the above-mentioned defects in the prior art, and provides an integrated composite roll film, which reduces the body of the whole machine. Accumulate and increase the amount of water.
  • the integrated composite roll film is installed in the membrane shell of the roll film, and comprises a roll film mainly composed of a diaphragm and a hollow central tube wound around the diaphragm, and the center tube is provided with a plurality of water inlet holes through The filtered water passes through the inlet hole into the cavity of the central tube, and the inner diameter of the central tube is matched with the diameter of the membrane shell of the rolled membrane.
  • the integrated composite roll film is installed in the membrane shell of the roll film, and comprises a roll film mainly composed of a diaphragm and a hollow central tube wound around the diaphragm, and the center tube is provided with a plurality of water inlet holes through The filtered water passes through the inlet hole into the cavity of the central tube, and a filter material is installed in the cavity of the central tube.
  • the integrated composite roll film is installed in the membrane shell of the roll film, and comprises a roll film mainly composed of a diaphragm and a hollow central tube wound around the diaphragm, and the center tube is provided with a plurality of water inlet holes through The filtered water passes through the water inlet hole into the cavity of the central tube, and the inner diameter of the central tube is matched with the diameter of the membrane shell of the roll film, and the cavity of the central tube is disposed. Filter media is installed.
  • the ratio of the inner diameter of the central tube to the diameter of the rolled membrane shell is 4.5:5 to 1:5.
  • the roll film is two or more connected.
  • the central tube includes a centrally connected tubular portion and a quick-connected tubular portion for sealing the composite rolled membrane within the rolled membrane casing, the central tubular portion being partially filtered material.
  • the filter material is an activated carbon filter or a granular, powdered material.
  • One end of the central casing portion is provided with a tail fin for facilitating attachment and detachment of the integrated composite roll film and the roll film casing.
  • the filter material has a fixed structure or a bulk structure.
  • the central shell portion and the tail fin have a structure that fits with the shape of the filter element.
  • the quick-connecting shell is integrally formed with the central shell portion, or the tail fin is integrally formed with the central shell portion, or is independent of each other.
  • the empennage portion and the central envelope portion are sealed by bonding, welding or sealing.
  • the central casing portion has a partition plate inside, the partition plate is disposed near the tail fin, and the water inlet hole is opened on a central casing portion between the dividing plate and the quick-connecting casing portion.
  • the dividing plate is disposed at a position one-seventh of the central casing portion.
  • the partition plate and the tail fin are integrally formed.
  • center tube portion and the quick-connecting tube portion and the tail portion are densely bonded by bonding, welding or sealing seal.
  • the roll film includes a reverse osmosis RO film, an ultrafiltration membrane.
  • the present invention has the following beneficial effects:
  • the increase of the inner diameter of the center tube makes the center tube easier to process, and the processing speed and processing quality are improved.
  • the activated carbon filter element or other filter material in the prior art machine is built in the central tube cavity, and the center tube becomes the shell of the filter element, which reduces the volume of the whole machine. Reduce production costs and save resources.
  • the inner diameter of the central tube is increased, so that the partition plate can be placed near the end of the central tube, thereby increasing the volume of the inlet tube of the central tube, increasing the number of inlet holes provided in the central tube, and improving the purity.
  • the amount of water entering the water is increased, so that the partition plate can be placed near the end of the central tube, thereby increasing the volume of the inlet tube of the central tube, increasing the number of inlet holes provided in the central tube, and improving the purity.
  • the tail pipe is added to one end of the center pipe.
  • the center pipe can be easily removed by applying force on the tail pipe.
  • FIG. 1 is a schematic view showing the structure of an integrated composite roll film provided in the film case provided by the present invention
  • Figure 2 is a cross-sectional view taken along line C-C of Figure 1;
  • FIG. 3 is a schematic structural view of a center tube of the prior art
  • FIG. 4 is a schematic structural view of an embodiment of a center tube provided by the present invention.
  • Figure 5 is a front elevational view of the tail of Figure 4.
  • Figure 6 is a partial cross-sectional view taken along line A-A of Figure 4.
  • Figure 7 is a partial cross-sectional view showing another embodiment of the center tube provided by the present invention.
  • the integrated composite roll film provided by the present invention is mounted in a standard film casing 12.
  • the RO reverse osmosis membrane 13 and the hollow central tube 15 for winding the RO reverse osmosis membrane 13 are included.
  • the central pipe 15 is provided with a plurality of water inlet holes 4, and the water filtered through the RO reverse osmosis membrane 13 passes through the water inlet holes 4 into the pure water inlet chamber 10 of the center pipe 15.
  • the inner diameter of the center tube 15 is matched according to the diameter of the roll film casing 12, and the activated carbon filter element 14 is installed in the pure water inlet chamber 10 of the center pipe 12.
  • the roll film composed of the diaphragm and the hollow center tube of the wound diaphragm may be a structure of two or more cascades.
  • the center tube 15 includes a central envelope portion 3 and a empennage portion 8 at one end thereof, the two portions being sealed by bonding, welding or sealing rings, and the filter material 14 is mounted in the central envelope portion 3.
  • the center tube portion 3 has a structure mounted in cooperation with the shape of the activated carbon filter element at the end where the activated carbon filter element is mounted, as shown in FIG.
  • the filter material is in the form of other granules or powders, it is only necessary to place it in the central shell portion 3.
  • Figure 3 shows a prior art central tube structure having a slender shape, including a central shell portion 3 and a quick-connected shell portion 1 at one end thereof.
  • the quick connect case portion 1 and the roll film case 12 are sealed at the seal port 2 with an O-ring.
  • the central casing portion 3 is provided with a plurality of water inlet holes 4, and the inside of the central casing portion 3 is a pure water passage 5. Due to the elongated structure of the center tube, in order to ensure uniformity of the inner diameter of the center tube, the processing technology is required to be high, and the partition plate 7 must be disposed at an intermediate position near the center tube. The number of water inlet holes 4 opened in the center pipe is small, and the water intake amount is small.
  • the central tube structure provided by the present invention has an inner diameter that is increased according to the inner diameter of the rolled membrane casing 12, and the inner diameter ratio of the two can be set in the range of 4.5:5 to 1:5.
  • the partition plate 7 can be placed close to the tail.
  • This structural design enables an increase in the number of water inlet holes 4 opened in the center pipe, thereby increasing the amount of water intake.
  • the partitioning plate 7 may be disposed at a position one-seventh of the center envelope portion 3. The water passage is larger and can pass more pure water.
  • the partition plate 7 can be provided separately or integrated with the tail 8 .
  • the quick-connecting shell portion 1 is fitted into the membrane casing 12 through the quick-connect insertion end 11 at one end thereof, and the central casing portion 3 around which the RO reverse osmosis membrane 13 is wound.
  • the center tube portion 3 to which the RO reverse osmosis membrane 13 is attached is taken out from the membrane shell by applying a force on the empennage 8.
  • the tail 8 is sealed from the membrane shell.
  • the central envelope portion 3 serves as a pure water passage 5 on which a pure water inlet hole 4 and a pure water inlet chamber 10 are disposed. The filtered pure water flows out from the pure water outlet 6 of the quick-connecting shell portion 1.
  • the filter element 14 installed in the central casing is a material of an activated carbon filter or other specific fixing structure
  • the filter element is installed at one end of the central casing portion and the tail portion.
  • the partition plate and the tail fin can be integrally provided.
  • the central shell portion and the quick-connect shell portion can be integrally provided at the same time.
  • the activated carbon filter element is replaced, the quick-connecting shell portion is removed, and the tail fin and the central shell portion are integrally disposed.
  • the quick-connecting shell portion, the central shell portion and the tail fin are independent of each other, and are combined and sealed during use.
  • the filter material is placed in the cavity of the central tube portion, and then the quick-connecting tube portion is connected to the central tube portion for sealing, and then the central tube portion and the tail portion are connected, and then sealed.
  • the filter material 14 installed in the center envelope is in the form of pellets, powder or other unfixed shape
  • the filter material only needs to be installed in the inner cavity of the central shell portion.
  • the tail fin and the split plate may be integrally provided, and the center tube portion and the quick-connect tube portion may be integrally provided at the same time, or the tail portion may be independent of the center tube portion and the quick-connect tube portion.
  • the empennage 8 can be arranged in two concentric circles with a rib 9 disposed between the two concentric circles, as shown in FIG.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

一种一体化复合卷式膜，安装在卷式膜的膜壳（12）内，包括主要由膜片（13）以及卷绕膜片（13）的中空中心管（15）构成的卷式膜，中心管（15）上开设有若干进水孔（4），经过膜片（13）过滤后的水通过进水孔（4）进入中心管（15）的腔体内，中心管（15）内径大小与卷式膜壳（12）的管径大小相配合设置，在中心管（15）的腔体内安装有滤材（14），由此减小了整机的体积、提高出水量，且便于拆卸。

Description

一体化复合卷式膜 技术领域
本发明涉及一种过滤水设备，更具体的说，涉及一种一体化复合卷式膜结构。
背景技术
伴随国家工业化的高速发展，水源污染成为目前国家亟待解决的大问题。国民对健康生活的追求与日益恶化的生活饮用水形成尖锐的矛盾。为解决饮用水现状，反渗透纯水机受到用户的青睐。
现有水净化设备的结构是：将膜片一圈圈缠绕在中心管上，再将中心管安装在膜壳内。膜壳的管径大小在行业内是标准、固定不变的。中心管的内径通常很小，其上开设有若干进水孔。经过膜片过滤的水通过进水孔进入中心管腔体内。自来水经过膜片过滤后，能够将盐、重金属等脱掉，但不能除味、除菌以及调节呈弱酸性的PH值等。所以，通常是在膜片过滤以后，后置活性碳滤芯或其他滤材，用于吸收有机物、除味、除菌，并将PH值调节为偏碱性，更有利于饮用者的健康。这种后置滤芯的整机结构，势必造成整机的体积大、生产成本高、资源浪费。
为了防止原水进入中心管内部，污染中心管内部的纯净水，在中心管内部设置有一分隔板，将中心管分为两个部分。由于现有的中心管内径很小，为细长形，因此，在对中心管进行中空加工时，为了避免在加工过程中细长的中心管由于晃动造成整个中心管的内径不一致的变形现象，分隔板设置在靠近中心管中间的位置。在被分隔板分隔的两部分中，其中一部分其上开设进水孔，其内部腔体作为纯水进水腔。另一部分不起作用。这种结构造成中心管上开设的进水孔数量少，进水量小，从而影响过滤的水流速度和水量大小。
另外，现有的净水设备中，在将缠绕有膜片的中心管从膜壳内取出更换或维修时，需要从中心管的一端施力。由于中心管与膜壳之间非常密封，取出时需要施加比较大的力，且由于现有中心管本身的结构限制，使得施力时又无法找到合适的施力点，即使使用工具操作起来也很不方便，甚至造成损坏，给更换和维修造成很多不便。
发明内容
本发明针对上述现有技术中存在的缺陷，提供一种一体化复合卷式膜，减小了整机的体 积，且提高出水量。
为达到上述目的，本发明所采用的技术方案如下：
一体化复合卷式膜，安装在卷式膜的膜壳内，包括主要由膜片以及卷绕膜片的中空中心管构成的卷式膜，所述中心管上开设有若干进水孔，经过膜片过滤后的水通过所述进水孔进入中心管的腔体内，所述中心管内径大小与所述卷式膜的膜壳的管径大小相配合设置。
一体化复合卷式膜，安装在卷式膜的膜壳内，包括主要由膜片以及卷绕膜片的中空中心管构成的卷式膜，所述中心管上开设有若干进水孔，经过膜片过滤后的水通过所述进水孔进入中心管的腔体内，在所述中心管的腔体内安装有滤材。
一体化复合卷式膜，安装在卷式膜的膜壳内，包括主要由膜片以及卷绕膜片的中空中心管构成的卷式膜，所述中心管上开设有若干进水孔，经过膜片过滤后的水通过所述进水孔进入中心管的腔体内，所述中心管内径大小与所述卷式膜的膜壳的管径大小相配合设置，在所述中心管的腔体内安装有滤材。
所述中心管内径与所述卷式膜壳的管径大小比例为4.5:5～1:5。
所述卷式膜为相连的两个以上。
所述中心管包括密封连接的中心管壳部分和快接管壳部分，所述快接管壳部分用于将所述复合卷式膜固定在卷式膜膜壳内，所述中心管壳部分安装滤材。
所述滤材是活性碳滤芯或呈颗粒状、粉末状材料。
所述中心管壳部分的一端设置有便于将所述一体化复合卷式膜与所述卷式膜壳安装和拆卸的尾翼。
所述滤材具有固定结构或呈散状结构。
所述滤材是固定结构时，所述中心管壳部分与尾翼具有与所述滤芯形状相配合安装的结构。
所述快接管壳与所述中心管壳部分为一体制成，或者尾翼与中心管壳部分为一体制成，亦或者各自独立。
所述尾翼部分和中心管壳部分之间通过粘接、焊接或者密封圈进行密封。
所述中心管壳部分内部具有一分隔板，所述分隔板靠近尾翼设置，所述进水孔开设在所述分割板与快接管壳部分之间的中心管壳部分上。
所述分隔板设置在中心管壳部分七分之一位置处。
所述分隔板、尾翼为一体制成。
所述中心管壳部分和快接管壳部分和尾翼部分之间通过粘接、焊接或者密封圈进行密 封。
所述卷式膜包括反渗透RO膜、超滤膜。
本发明相比较现有技术，有益效果如下：
1、中心管内径的加大，使得中心管加工时更加容易，加工速度和加工质量提高。
2、通过加大中心管的内径，将现有技术整机中后置的活性碳滤芯或其他滤材内置于中心管腔体内，中心管成为滤芯的壳体，减小了整机的体积、降低了生产成本、节约了资源。
3、中心管内径的加大，使得分隔板可以设置在靠近中心管端头的位置，从而增大了中心管进水腔的体积，增加中心管上开设的进水孔的数量，提高纯水的进水量。
4、中心管一端增加尾翼，在拆卸中心管时，在尾翼上施力，就可以方便的将中心管拆卸下来。
附图说明
图1是本发明所提供的一体化复合卷式膜安装在膜壳内的结构示意图；
图2是图1沿C-C的剖面图；
图3是现有技术的中心管结构示意图；
图4是本发明所提供的中心管一实施例结构示意图；
图5是图4中的尾翼正面示意图；
图6是4沿A-A向的部分剖面图；
图7是本发明所提供的中心管另一实施例的部分剖面图。
图中：1、快接管壳部分；2、密封口；3、中心管壳部分；4、进水孔；5、纯水通道；6、纯水出水口；7、分隔板；8、尾翼；9、筋；10、纯水进水腔；11、快接插入端；12、膜壳；13、RO反渗透膜片；14、滤材；15、中心管。
具体实施方式
下面结合说明书附图和具体实施例对本发明技术方案做一详细的描述。
图1、图2所示，本发明所提供的一体化复合卷式膜，安装在标准的膜壳12内。包括RO反渗透膜片13、卷绕RO反渗透膜片13的中空中心管15。中心管15上开设有若干进水孔4，经过RO反渗透膜片13过滤后的水通过进水孔4进入中心管15的纯水进水腔10内。
中心管15的内径大小根据卷式膜膜壳12的管径大小相配合设置，在中心管12的纯水进水腔10内安装有活性碳滤芯14。
由膜片以及卷绕膜片的中空中心管构成的卷式膜可以是两个以上级联的结构。
中心管15包括中心管壳部分3及其一端的尾翼部分8，两部分之间通过粘接、焊接或者密封圈进行密封，滤材14安装在中心管壳部分3内。当滤材14是活性碳滤芯时，中心管壳部分3在安装活性碳滤芯的一端，具有与活性碳滤芯的形状相配合安装的结构，如图3所示。当滤材为其他颗粒状、粉末状时，只需要将其放置在中心管壳部分3内即可。
图3所示是现有技术的中心管结构，中心管呈细长形，包括中心管壳部分3及其一端的快接管壳部分1。快接管壳部分1与卷式膜壳12在密封口2用O型圈密封。中心管壳部分3上开设有若干进水孔4，中心管壳部分3的内部是纯水通道5。由于中心管的细长形结构，为了保证中心管内径均匀一致，对加工工艺的要求较高，分隔板7必须设置在靠近中心管的中间位置。造成中心管上开设的进水孔4的数量少，进水量小。
图4～图7所示，本发明所提供的中心管结构，其内径加大，可根据卷式膜壳12的内径大小进行设计，两者内径比例可设置在4.5:5～1:5范围内。在这种加粗设计的中心管进行加工时，对加工工艺的要求不高，分隔板7可以靠近尾翼设置。这种结构设计，能够使得中心管上开设的进水孔4的数量增加，从而增加进水量。本实施例中，分隔板7可以设置在中心管壳部分3的七分之一位置处。水通道更加大，能通过更多的纯水.分隔板7可以单独设置，也可以与尾翼8设置为一体。
安装时，快接管壳部分1通过其一端的快接插入端11将缠绕有RO反渗透膜片13的中心管壳部分3套装在膜壳12内。在更换中心管内的活性碳或者中心管外的RO反渗透膜片时，通过在尾翼8上施力，将安装有RO反渗透膜片13的中心管壳部分3从膜壳取出。尾翼8与膜壳之间密封。中心管壳部分3作为纯水通道5，其上设置有纯水进水孔4以及纯水进水腔10。过滤后的纯水从快接管壳部分1的纯水出水口6流出。
本发明实施例一中，当中心管壳内安装的滤材14是活性碳滤芯或其他具体固定结构的材料时，滤芯安装在中心管壳部分与尾翼部分连接的一端。更换活性碳滤芯时，将尾翼部分拆下来，将滤芯从膜壳中直接拿出来即可。这时，可以将分隔板、尾翼设置为一体。且可以同时将中心管壳部分和快接管壳部分设置为一体。本发明实施例二中，更换活性碳滤芯时，将快接管壳部分拆下来，这时尾翼与中心管壳部分为一体设置。本发明实施案例三中，快接管壳部分、中心管壳部分以及尾翼，各自独立，使用时进行组合密封。将滤材放入中心管壳部分的腔体内，再将快接管壳部分连接中心管壳部分进行密封，再连接中心管壳部分与尾翼部分，再密封。
当中心管壳内安装的滤材14是颗粒状、粉末状或其他不固定形状时，滤材只需要安装在中心管壳部分的内部腔体即可。更换滤材时，将尾翼、分隔板拆下来，将滤材从膜壳中直 接拿出来即可。这时，可以将尾翼和分割板设置为一体，且可以同时将中心管壳部分和快接管壳部分设置为一体，亦或者尾翼部分与中心管壳部分和快接管壳部分各自独立。
尾翼8可以设置为两个同心圆结构，在两个同心圆之间设置有筋9，如图6所示。在需要将缠绕有RO反渗透膜片13的中心管壳部分3从膜壳取出时，通过手或者工具在尾翼8的筋9上施力，即可方便的取出。
上述实施例仅用于说明本发明技术方案，但其并不是用来限定本发明。任何本领域技术人员在不脱离本发明的精神和范围内，都可以利用上述揭示的内容对本发明所提出的方案做出可能的变动和修改，因此，凡是未脱离本发明的技术内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化及修饰，均属于本发明的保护范围。

Claims (14)

  1. 一体化复合卷式膜，安装在卷式膜的膜壳内，其特征在于，包括主要由膜片以及卷绕膜片的中空中心管构成的卷式膜，所述中心管上开设有若干进水孔，经过膜片过滤后的水通过所述进水孔进入中心管的腔体内，所述中心管内径大小与所述卷式膜的膜壳的管径大小相配合设置。
  2. 一体化复合卷式膜，安装在卷式膜的膜壳内，其特征在于，包括主要由膜片以及卷绕膜片的中空中心管构成的卷式膜，所述中心管上开设有若干进水孔，经过膜片过滤后的水通过所述进水孔进入中心管的腔体内，在所述中心管的腔体内安装有滤材。
  3. 一体化复合卷式膜，安装在卷式膜的膜壳内，其特征在于，包括主要由膜片以及卷绕膜片的中空中心管构成的卷式膜，所述中心管上开设有若干进水孔，经过膜片过滤后的水通过所述进水孔进入中心管的腔体内，所述中心管内径大小与所述卷式膜的膜壳的管径大小相配合设置，在所述中心管的腔体内安装有滤材。
  4. 根据权利要求1、2或3所述的一体化复合卷式膜，其特征在于，所述中心管内径与所述卷式膜壳的管径大小比例为4.5:5～1:5。
  5. 根据权利要求1、2或3所述的一体化复合卷式膜，其特征在于，所述卷式膜为相连的两个以上。
  6. 根据权利要求1、2或3所述的一体化复合卷式膜，其特征在于，所述中心管包括依次密封连接的快接管壳部分、中心管壳部分和尾翼，所述快接管壳部分用于将所述卷式膜固定在卷式膜的膜壳内，所述中心管壳部分安装滤材。
  7. 根据权利要求6所述的一体化复合卷式膜，其特征在于，所述中心管壳部分和快接管壳部分之间、所述尾翼和中心管壳部分之间通过粘接、焊接或者密封圈进行密封。
  8. 根据权利要求6所述的一体化复合卷式膜，其特征在于，所述滤材具有固定结构或呈散状结构。
  9. 根据权利要求7所述的一体化复合卷式膜，其特征在于，所述快接管壳与所述中心管壳部分为一体制成，所述滤材从所述中心管的尾翼端拆卸；或者所述尾翼与所述中心管壳部分为一体制成，所述滤材从所述中心管的快接管壳端拆卸。
  10. 根据权利要求8所述的一体化复合卷式膜，其特征在于，所述滤材是固定结构时，所述中心管具有与所述滤材形状相配合安装的结构。
  11. 根据权利要求9所述的一体化复合卷式膜，其特征在于，所述中心管壳部分内部具有一分隔板，所述分隔板靠近尾翼设置，所述进水孔开设在所述分割板与快接管壳部分之间的中 心管壳部分。
  12. 根据权利要求11所述的一体化复合卷式膜，其特征在于，所述分隔板设置在中心管壳部分七分之一位置处。
  13. 根据权利要求11所述的一体化复合卷式膜，其特征在于，所述分隔板、尾翼为一体制成。
  14. 根据权利要求13所述的一体化复合卷式膜，其特征在于，所述尾翼与所述中心管壳部分为一体制成时，所述分隔板、所述尾翼与所述中心管壳部分为一体制成。
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