WO2018036063A1

WO2018036063A1 - Spiral wound reverse osmosis membrane element, membrane wound method thereof and reverse osmosis water purifier

Info

Publication number: WO2018036063A1
Application number: PCT/CN2016/113094
Authority: WO
Inventors: 蔡雪刚; 桂鹏; 郑防震; 宋国栋
Original assignee: 佛山市顺德区美的饮水机制造有限公司
Priority date: 2016-08-26
Filing date: 2016-12-29
Publication date: 2018-03-01
Also published as: CN106345300A

Abstract

A spiral wound reverse osmosis membrane element, membrane wound method of the spiral wound reverse osmosis membrane element, and a reverse osmosis water purifier, wherein the spiral reverse osmosis membrane element comprises a plurality sets of reverse osmosis membranes (100) and a central tube assembly (200) including a pure water tube (210) and a plurality of waste water pipes (220) spaced apart from each other, the plurality of waste water tubes (220) being arranged around the pure water tube (210); wherein each set of the reverse osmosis membranes (100) has a first part located inside the central tube assembly (200) and a second part located outside the central tube assembly (200), each of the waste water tube (220) and the pure water tube (210) is separated by the first part of a set of the reverse osmosis membranes (100); and the second part of the plurality sets of reverse osmosis membranes (100) forms a multi-layer membrane assembly surrounding the center assembly (200).

Description

螺旋卷式反渗透膜元件、其卷膜方法和反渗透*** Spiral reel type reverse osmosis membrane element, its film winding method and reverse osmosis water purifier

技术领域Technical field

本发明涉及反渗透净水技术领域，特别涉及一种螺旋卷式反渗透膜元件、螺旋卷式反渗透膜元件的卷膜方法和反渗透***。The invention relates to the field of reverse osmosis water purification technology, in particular to a spiral wound reverse osmosis membrane element, a coil film method of a spiral wound reverse osmosis membrane element and a reverse osmosis water purifier.

背景技术Background technique

螺旋卷式反渗透膜元件又称卷式反渗透膜元件，是水处理技术中的常用元件，它一般具有一个圆柱形的压力容器作为壳体，其内部有一根带有多个孔的中心管以及卷在中心管上的交替层叠的多层反渗选膜和导流网。中心管与壳体两端通过连接器连接。在使用时，原水从壳体一端进入壳体，在压力的作用下一部分经过反渗透膜的作用形成浓度较低的水，进入中心管之后从中心管一端或两端流出，这部分水可称作产水或纯水；另一部分从壳体另一端流出，可称作废水、浓水。 The spiral wound reverse osmosis membrane element, also known as the roll-type reverse osmosis membrane element, is a common component in water treatment technology. It generally has a cylindrical pressure vessel as a casing, and has a central tube with a plurality of holes therein. And an alternately stacked multi-layer reverse osmosis membrane and a flow diversion web wound on a central tube. The center tube and the two ends of the housing are connected by a connector. In use, the raw water enters the casing from one end of the casing, and a part of the water passes through the reverse osmosis membrane to form a lower concentration of water under the action of the pressure. After entering the central pipe, the water flows out from one end or both ends of the central pipe. Produce water or pure water; another part flows out from the other end of the shell, which can be called wastewater and concentrated water.

现有技术中的这种螺旋卷式反渗透膜元件，原水经处理之后，很大一部分作为废水排出，只有一小部分成为纯水，特别是大通量的螺旋卷式反渗透膜元件，纯水量在原水量中占的比例相对更小，原水回收率低，造成了原水的浪费。In the spiral rolled reverse osmosis membrane element of the prior art, after the raw water is treated, a large part is discharged as waste water, and only a small part becomes pure water, especially a large-flux spiral wound reverse osmosis membrane element, pure The proportion of water in the amount of raw water is relatively small, and the recovery rate of raw water is low, resulting in waste of raw water.

发明内容Summary of the invention

本发明的主要目的是提供一种螺旋卷式反渗透膜元件，旨在提高原水回收率，实现高节水。The main object of the present invention is to provide a spiral wound reverse osmosis membrane element which aims to improve the recovery rate of raw water and achieve high water saving.

为实现上述目的，本发明提出的螺旋卷式反渗透膜元件，包括：多个反渗透膜片组和中心管组，每一个所述反渗透膜片组包括反渗透膜片、进水导流网以及纯水导流网，所述进水导流网和所述纯水导流网分别设置在所述反渗透膜片的正反两面；所述中心管组包括纯水管以及多个相互间隔设置的废水管，多个所述废水管环绕所述纯水管排布；其中，每一个所述反渗透膜片组均具有位于所述中心管组内部的第一部分和位于所述中心管组外部的第二部分，每一所述废水管和所述纯水管被一个所述反渗透膜片组的第一部分隔开；多个所述反渗透膜片组的第二部分形成围绕在所述中心管组的周围的多层薄膜组件；其中，每一个所述反渗透膜片组的进水导流网不与所述纯水管和其他的所述反渗透膜片组的反渗透膜片的反面接触；每一个所述反渗透膜片组的纯水导流网不与所述废水管和其他的所述反渗透膜片组的反渗透膜片的正面接触。In order to achieve the above object, a spiral wound reverse osmosis membrane element provided by the present invention comprises: a plurality of reverse osmosis membrane groups and a central tube group, each of said reverse osmosis membrane groups comprising a reverse osmosis membrane and a water inflow diversion a net and a pure water deflecting net, wherein the influent diversion net and the pure water diversion net are respectively disposed on the front and back sides of the reverse osmosis membrane; the central tube group includes a pure water pipe and a plurality of mutual a waste pipe provided at intervals, a plurality of said waste water pipes are arranged around said pure water pipe; wherein each of said reverse osmosis membrane groups has a first portion located inside said central pipe group and located at said central pipe a second portion external to the group, each of said waste water pipe and said pure water pipe being separated by a first portion of said reverse osmosis membrane group; a plurality of said second portion of said reverse osmosis membrane group being formed around a multilayer film assembly around the central tube set; wherein each of the inflow permeable webs of the reverse osmosis membrane group does not reverse osmosis with the pure water tube and other of the reverse osmosis membrane groups Reverse contact of the diaphragm; pure water of each of the reverse osmosis membrane groups Contacting the reverse osmosis membrane drift front diaphragm and the group without RO with the other of the waste pipe.

优选地，每一个所述反渗透膜片组的反渗透膜片正面向内对折设置，多个所述反渗透膜片组的第二部分叠合并共同沿周向缠绕所述中心管组；同一所述反渗透膜片正面夹层之间形成进水流道；相邻两个所述反渗透膜片的反面夹层之间形成产水流道；所述进水导流网和所述废水管位于进水流道中，所述纯水导流网位于产水流道中。Preferably, each of the reverse osmosis membrane sheets has a reverse osmosis membrane face folded inwardly, and a plurality of the reverse osmosis membrane groups are stacked together to circumferentially wind the central tube group; Forming an inflow channel between the front interlayers of the reverse osmosis membrane; forming a water producing flow channel between the opposite sandwich layers of the two adjacent reverse osmosis membranes; the inlet diversion network and the waste water tube are located in the influent flow In the middle, the pure water flow guiding net is located in the water producing flow channel.

优选地，所述产水流道除靠近所述纯水管的侧边以外的其他侧边均闭合密封，以使得所述产水流道仅具有朝向所述纯水管的纯水出口。Preferably, the water producing flow passage is closedly sealed except for the side edges adjacent to the side of the pure water pipe, so that the water producing flow path has only a pure water outlet toward the pure water pipe.

优选地，所述纯水管的周壁上开设有连通所述纯水管的内部通道的纯水入水孔；每一所述废水管的周壁上开设有连通所述废水管的内部通道的废水入水孔。Preferably, the peripheral wall of the pure water pipe is provided with a pure water inlet hole communicating with the internal passage of the pure water pipe; and the peripheral wall of each of the waste water pipes is provided with wastewater entering the internal passage of the waste pipe. hole.

优选地，所述废水管的数量为两个；所述纯水管为扁管，以使得所述纯水管具有两个侧表面，每一所述侧表面上均设有所述纯水入水孔；每一个所述废水管对应一个所述侧表面的位置设置。Preferably, the number of the waste water pipes is two; the pure water pipe is a flat pipe such that the pure water pipe has two side surfaces, and each of the side surfaces is provided with the pure water into the water a hole; each of the waste water pipes is disposed corresponding to a position of one of the side surfaces.

优选地，每一所述侧表面上均间隔设有多个所述纯水入水孔，且多个所述纯水入水孔沿所述纯水管的长度方向排布；和/或，每一所述废水管上均间隔设有多个所述废水入水孔，且多个所述废水入水孔沿所述废水管的长度方向排布。Preferably, each of the side surfaces is spaced apart from the plurality of pure water inlet holes, and a plurality of the pure water inlet holes are arranged along a length direction of the pure water pipe; and/or each A plurality of the wastewater inlet holes are disposed on the waste pipe, and a plurality of the wastewater inlet holes are arranged along a length direction of the waste pipe.

优选地，所述废水管的数量为N个，N大于或等于3；所述纯水管的横截面呈N边形设置，并对应具有N个侧表面，每一所述侧表面上均设有所述纯水入水孔；每一个所述废水管对应一个所述侧表面的位置设置。Preferably, the number of the waste water pipes is N, and N is greater than or equal to 3; the cross section of the pure water pipe is N-shaped and correspondingly has N side surfaces, each of which is provided on the side surface The pure water is introduced into the water hole; each of the waste water pipes is disposed corresponding to a position of the side surface.

优选地，所述纯水管的横截面呈圆形设置，所述纯水管的周壁沿其周向对应多个所述废水管划分为多个弧面段，每一所述弧面段上均设有所述纯水入水孔；每一所述废水管对应一个所述弧面段的位置设置。Preferably, the pure water pipe has a circular cross section, and the peripheral wall of the pure water pipe is divided into a plurality of arc surface segments corresponding to the plurality of the waste water pipes in a circumferential direction thereof, and each of the arc surface segments is The pure water inlet holes are respectively provided; each of the waste water pipes is disposed corresponding to a position of one of the curved surface segments.

优选地，每一所述弧面段上均间隔设有多个所述纯水入水孔，且多个所述纯水入水孔沿所述纯水管的长度方向排布；和/或，每一所述废水管上均间隔设有多个废水入水孔，且多个所述废水入水孔沿所述废水管的长度方向排布。Preferably, each of the curved surface segments is spaced apart from the plurality of pure water inlet holes, and a plurality of the pure water inlet holes are arranged along a length direction of the pure water pipe; and/or each A plurality of waste water inlet holes are disposed on the waste water pipe, and a plurality of the waste water inlet holes are arranged along a length direction of the waste water pipe.

优选地，所述废水管的周壁上开设有废水导流槽，所述废水入水孔设于所述废水导流槽内。Preferably, a waste water guiding groove is defined in a peripheral wall of the waste water pipe, and the wastewater inlet water hole is disposed in the waste water guiding groove.

优选地，所述纯水管的周壁上开设有沿所述纯水管长度方向延伸的第一让位开口。Preferably, the peripheral wall of the pure water pipe is provided with a first letting opening extending along the length of the pure water pipe.

优选地，所述第一让位开口内设有第一加强筋，所述第一加强筋的两端分别连接所述第一让位开口的不同的两条边。Preferably, a first reinforcing rib is disposed in the first retaining opening, and two ends of the first reinforcing rib are respectively connected to different two sides of the first letting opening.

优选地，所述废水管的周壁上开设有沿所述废水管长度方向延伸的第二让位开口。Preferably, the peripheral wall of the waste pipe is provided with a second yielding opening extending along the length of the waste pipe.

优选地，所述第二让位开口内设有第二加强筋，所述第二加强筋的两端分别连接所述第二让位开口的不同的两条边。Preferably, a second reinforcing rib is disposed in the second retaining opening, and two ends of the second reinforcing rib are respectively connected to different two sides of the second retaining opening.

优选地，所述纯水管和多个所述废水管共同组合形成圆柱体形。Preferably, the pure water pipe and the plurality of waste water pipes are combined to form a cylindrical shape.

优选地，所述纯水管的一端口被封堵，以使得纯水向所述纯水管的另一端口流动；和/或，至少一个所述废水管的一端口被封堵，以使得废水向所述废水管的另一端口流动。Preferably, one port of the pure water pipe is blocked to allow pure water to flow to another port of the pure water pipe; and/or at least one port of the waste pipe is blocked, so that The wastewater flows to the other port of the waste pipe.

本发明还提出一种螺旋卷式反渗透膜元件的卷膜方法，所述螺旋卷式反渗透膜元件，包括：多个反渗透膜片组，每一个所述反渗透膜片组包括反渗透膜片、进水导流网以及纯水导流网，所述进水导流网和所述纯水导流网分别设置在所述反渗透膜片的正反两面；中心管组，所述中心管组包括纯水管以及多个相互间隔设置的废水管，多个所述废水管环绕所述纯水管排布；其中，每一个所述反渗透膜片组均具有位于所述中心管组内部的第一部分和位于所述中心管组外部的第二部分，每一所述废水管和所述纯水管被一个所述反渗透膜片组的第一部分隔开；多个所述反渗透膜片组的第二部分形成围绕在所述中心管组的周围的多层薄膜组件；其中，每一个所述反渗透膜片组的进水导流网不与所述纯水管和其他的所述反渗透膜片组的反渗透膜片的反面接触；每一个所述反渗透膜片组的纯水导流网不与所述废水管和其他的所述反渗透膜片组的反渗透膜片的正面接触；The invention also provides a film winding method for a spiral wound reverse osmosis membrane element, the spiral wound reverse osmosis membrane element comprising: a plurality of reverse osmosis membrane groups, each of said reverse osmosis membrane groups comprising reverse osmosis a diaphragm, an influent diversion net, and a pure water diversion net, wherein the influent diversion net and the pure water diversion net are respectively disposed on the front and back sides of the reverse osmosis membrane; the central tube group, The central tube set includes a pure water pipe and a plurality of mutually spaced waste water pipes, and the plurality of waste water pipes are arranged around the pure water pipe; wherein each of the reverse osmosis membrane groups has a central pipe located therein a first portion inside the group and a second portion outside the central tube group, each of the waste water pipe and the pure water pipe being separated by a first portion of the reverse osmosis membrane group; A second portion of the permeable membrane group forms a multilayer film assembly surrounding the central tube stack; wherein each of the reverse osmosis membrane groups has an influent diversion network that is not associated with the pure water pipe and other The reverse side contact of the reverse osmosis membrane of the reverse osmosis membrane group; each The front contact water reverse osmosis membrane bundle guide net osmosis membrane osmosis membrane is not set and the other with the waste pipe;

所述的螺旋卷式反渗透膜元件的卷膜方法包括如下步骤：The roll film method of the spiral wound reverse osmosis membrane element comprises the following steps:

步骤S1，将多个所述反渗透膜片组的第一部分伸入所述中心管组内，使得每一所述废水管和所述纯水管被一个所述反渗透膜片组的第一部分隔开；Step S1, extending a first portion of the plurality of the reverse osmosis membrane groups into the central tube group such that each of the waste water tubes and the pure water tubes are subjected to a first portion of the reverse osmosis membrane group Separate

步骤S2，将多个所述反渗透膜片组的第二部分围绕在所述中心管组的周围。In step S2, a second portion of the plurality of the reverse osmosis membrane groups is surrounded around the central tube group.

优选地，所述步骤S1具体包括：Preferably, the step S1 specifically includes:

S11，将一所述反渗透膜片自前向后绕过一所述废水管后，再向前折叠而缠绕在所述废水管上，以使所述反渗透膜片的正面相对形成夹层，并将一所述进水导流网置于所述夹层内，制得一个第一组件；重复前述操作，制得多个所述第一组件；S11, a reverse osmosis membrane is wound from the front to the back through a waste pipe, and then folded forward and wound on the waste pipe so that the front surface of the reverse osmosis membrane is oppositely formed, and Disposing a water inflow guiding net in the interlayer to prepare a first component; repeating the foregoing operation to obtain a plurality of the first components;

S12，将所述纯水管安装到卷膜机上，将一置于所述纯水管前方的所述纯水导流网固定在所述纯水管上；S12, the pure water pipe is installed on the film rolling machine, and the pure water guiding net placed in front of the pure water pipe is fixed on the pure water pipe;

S13，将一所述第一组件安装到所述纯水管上，使该第一组件的废水管置于所述纯水管的前方，使该第一组件的反渗透膜片和进水导流网叠置于前一个所述纯水导流网上；S13, installing a first component to the pure water pipe, placing a waste pipe of the first component in front of the pure water pipe, and making a reverse osmosis membrane and a water inlet guide of the first component The flow net is stacked on the previous pure water diversion network;

S14，在将当前安装到所述纯水管上的所述第一组件的上表面的前端边沿和左右两端边沿上打胶后，粘合一片所述纯水导流网；S14, after the front end edge and the left and right end edges of the upper surface of the first component currently mounted on the pure water pipe are glued, a piece of the pure water flow guiding net is bonded;

S15，启动所述卷膜机，所述卷膜机带动所述纯水管以及安装于所述纯水管上的所述第一组件转动预设角度，以使当前安装到所述纯水管上的所述第一组件将前一个所述纯水导流网压于下方并转动至所述纯水管的后方；S15, starting the film rolling machine, the film rolling machine driving the pure water pipe and the first component mounted on the pure water pipe to rotate a preset angle to enable current installation to the pure water pipe The first component above presses the former pure water guiding network below and rotates to the rear of the pure water pipe;

S16，将另一所述第一组件安装到所述纯水管上，使该第一组件的废水管置于所述纯水管的前方，使该第一组件的反渗透膜片和进水导流网叠置于前一个所述第一组件的纯水导流网上；S16, installing another one of the first components on the pure water pipe, placing a waste pipe of the first component in front of the pure water pipe, and making a reverse osmosis membrane and water inlet of the first component The flow guiding net is stacked on the pure water guiding network of the first one of the first components;

重复步骤S14至S16，直至多个所述第一组件均安装到位，转入步骤S17；Repeat steps S14 to S16 until a plurality of the first components are installed in place, and proceeds to step S17;

S17，在最后一个所述第一组件的上表面的前端边沿和左右两侧边沿上打胶后，与所述步骤S12中固定在所述纯水管上的纯水导流网相互粘合。 S17, after the front end edge and the left and right side edges of the upper surface of the last one of the first components are glued, and adhered to the pure water flow guiding net fixed on the pure water pipe in the step S12.

优选地，所述步骤S2具体包括：Preferably, the step S2 specifically includes:

S21，将多个所述反渗透膜片组的第二部分叠合后，启动所述卷膜机，带动所述纯水管以及安装于所述纯水管上的所述第一组件按照所述步骤S15的中的转动方向转动，直至多个所述反渗透膜片组的第二部分全部卷绕到所述中心管组上。S21, after laminating a plurality of the second portions of the reverse osmosis membrane group, starting the winder, driving the pure water pipe and the first component mounted on the pure water pipe according to The rotation direction in step S15 is rotated until the second portions of the plurality of the reverse osmosis membrane groups are all wound onto the center tube group.

优选地，所述废水管的数量为M个，M大于或等于2，所述预设角度为360/M度。Preferably, the number of the waste water pipes is M, M is greater than or equal to 2, and the preset angle is 360/M degrees.

本发明还提出一种反渗透***，该反渗透***包括螺旋卷式反渗透膜元件；所述螺旋卷式反渗透膜元件包括：多个反渗透膜片组，每一个所述反渗透膜片组包括反渗透膜片、进水导流网以及纯水导流网，所述进水导流网和所述纯水导流网分别设置在所述反渗透膜片的正反两面；中心管组，所述中心管组包括纯水管以及多个相互间隔设置的废水管，多个所述废水管环绕所述纯水管排布；其中，每一个所述反渗透膜片组均具有位于所述中心管组内部的第一部分和位于所述中心管组外部的第二部分，每一所述废水管和所述纯水管被一个所述反渗透膜片组的第一部分隔开；多个所述反渗透膜片组的第二部分形成围绕在所述中心管组的周围的多层薄膜组件；其中，每一个所述反渗透膜片组的进水导流网不与所述纯水管和其他的所述反渗透膜片组的反渗透膜片的反面接触；每一个所述反渗透膜片组的纯水导流网不与所述废水管和其他的所述反渗透膜片组的反渗透膜片的正面接触。The present invention also provides a reverse osmosis water purifier comprising a spiral wound reverse osmosis membrane element; the spiral wound reverse osmosis membrane element comprising: a plurality of reverse osmosis membrane groups, each of which The reverse osmosis membrane group includes a reverse osmosis membrane, an influent diversion network, and a pure water diversion network, and the inlet water diversion net and the pure water diversion net are respectively disposed on the front and back of the reverse osmosis membrane a central tube group comprising a pure water pipe and a plurality of mutually spaced waste water pipes, wherein the plurality of waste water pipes are arranged around the pure water pipe; wherein each of the reverse osmosis membranes Each of the groups has a first portion located inside the central tube group and a second portion located outside the center tube group, each of the waste water pipe and the pure water pipe being the first portion of one of the reverse osmosis membrane groups Separating; a plurality of the second portion of the reverse osmosis membrane group forming a multi-layer membrane assembly surrounding the central tube group; wherein each of the reverse osmosis membrane groups has an influent diversion network Reverse osmosis with the pure water pipe and other of the reverse osmosis membrane groups Reverse contact pads; each of said reverse osmosis membrane pure water guide net positive contact with the reverse osmosis membrane of the group of reverse osmosis membrane is not set and the other with the waste pipe.

本发明技术方案的螺旋卷式反渗透膜元件的中心管组包括纯水管和多个环绕纯水管的废水管；螺旋卷式反渗透膜元件的每一废水管对应一页反渗透膜片组，从而可以实现多膜页卷取，可以增加流道数量，有利于提高原水通量，并解决膜片过长渗透压不足导致部分膜片并未达到过滤目的的问题；由于该中心管组被多页反渗透膜片组卷绕在中心位置，因此在密封该些反渗透膜片组两端后，可以形成多页反渗透膜片组外侧边侧流进水，中间废水管排出废水的原水水路；本发明的螺旋卷式反渗透膜元件使用时，原水通过侧流进水，流道变窄，进水面积减小，还可以采用低厚度的进水导流网，继续减少进水面积，而流程也大大增长，因此可以增加原水与反渗透膜片接触的时间，提高原水回收率；同时，因为减小了原水进水面积，可以加大反渗透膜片表面水流速度，因而能够减小反渗透膜表面浓差极化，降低该螺旋卷式反渗透膜元件的污染速度，有利于提高原水回收率，从而改善原水的浪费问题，实现高节水。The central tube set of the spiral wound reverse osmosis membrane element of the technical solution of the present invention comprises a pure water pipe and a plurality of waste water pipes surrounding the pure water pipe; each of the waste water pipes of the spiral wound reverse osmosis membrane element corresponds to a reverse osmosis membrane Group, which can achieve multi-film sheet winding, can increase the number of flow channels, is conducive to increase the raw water flux, and solve the problem that the diaphragm is too long and the osmotic pressure is insufficient, so that some of the diaphragms do not achieve the filtering purpose; because the central tube group The multi-page reverse osmosis membrane group is wound around the center position, so after sealing the two ends of the reverse osmosis membrane group, the outer side of the multi-page reverse osmosis membrane group can be formed into the water, and the intermediate waste water pipe discharges the wastewater. The raw water waterway; when the spiral wound reverse osmosis membrane element of the invention is used, the raw water enters the water through the side stream, the flow channel is narrowed, the water inlet area is reduced, and the low-intensity influent diversion net can be used to continue to reduce the flow. The water area and the flow are greatly increased, so the contact time between the raw water and the reverse osmosis membrane can be increased, and the recovery rate of the raw water can be increased. At the same time, the surface water flow of the reverse osmosis membrane can be increased because the original water inlet area is reduced. Degrees, it is possible to reduce the concentration polarization reverse osmosis membrane surface, reduce the fouling rate of the reverse osmosis membrane spiral wound elements, help to improve the recovery rate of the raw water, thereby improving the problem of raw waste water, high water saving.

附图说明DRAWINGS

图1为本发明螺旋卷式反渗透膜元件一实施例的俯视图；Figure 1 is a plan view showing an embodiment of a spiral wound reverse osmosis membrane element of the present invention;

图2为图1所示螺旋卷式反渗透膜元件的一页反渗透膜片组与一个废水管和一个纯水管配合的俯视图；2 is a top plan view of a reverse osmosis membrane group of the spiral wound reverse osmosis membrane element shown in FIG. 1 in cooperation with a waste water pipe and a pure water pipe;

图3为图1所示螺旋卷式反渗透膜元件的中心管组的结构示意图；3 is a schematic structural view of a central tube set of the spiral wound reverse osmosis membrane element shown in FIG. 1;

图4为图3所示中心管组的俯视图；Figure 4 is a plan view of the central tube set of Figure 3;

图5为图4所示中心管组中纯水管沿A-A’的剖面图；Figure 5 is a cross-sectional view of the pure water pipe of the central pipe group shown in Figure 4 along A-A';

图6为图4所示中心管组中废水管沿B-B’的剖面图；Figure 6 is a cross-sectional view of the waste pipe along the B-B' in the central pipe group shown in Figure 4;

图7为图1所示螺旋卷式反渗透膜元件的纯水管的结构示意图；Figure 7 is a schematic structural view of a pure water pipe of the spiral wound reverse osmosis membrane element shown in Figure 1;

图8为图1所示螺旋卷式反渗透膜元件的废水管的结构示意图；Figure 8 is a schematic structural view of a waste water pipe of the spiral wound reverse osmosis membrane element shown in Figure 1;

图9为本发明螺旋卷式反渗透膜元件另一实施例的中心管组俯视图；Figure 9 is a top plan view of a central tube set of another embodiment of the spiral wound reverse osmosis membrane element of the present invention;

图10为本发明螺旋卷式反渗透膜元件又一实施例的中心管组俯视图；Figure 10 is a top plan view of a central tube set of still another embodiment of the spiral wound reverse osmosis membrane element of the present invention;

图11为本发明螺旋卷式反渗透膜元件的卷膜方法一实施例的流程图；Figure 11 is a flow chart showing an embodiment of a film winding method of a spiral wound reverse osmosis membrane element of the present invention;

图12为图11所示螺旋卷式反渗透膜元件的卷膜方法的步骤S1的细化流程示意图；Figure 12 is a schematic flow chart showing the step S1 of the film winding method of the spiral wound reverse osmosis membrane element shown in Figure 11;

图13为图12所示螺旋卷式反渗透膜元件的卷膜方法中制得的第一组件的结构示意图；Figure 13 is a schematic view showing the structure of the first component produced in the film winding method of the spiral wound reverse osmosis membrane element shown in Figure 12;

图14为图12所示螺旋卷式反渗透膜元件的卷膜方法中纯水管与废水管配合安装的结构示意图；Figure 14 is a structural schematic view showing the installation of a pure water pipe and a waste pipe in the film winding method of the spiral wound reverse osmosis membrane element shown in Figure 12;

图15为图12所示螺旋卷式反渗透膜元件的卷膜方法中步骤S14的状态示意图。Fig. 15 is a view showing the state of step S14 in the film winding method of the spiral wound reverse osmosis membrane element shown in Fig. 12.

附图标号说明：Description of the reference numerals:

标号Label	名称name	标号Label	名称name
100100	反渗透膜片组Reverse osmosis membrane group	110110	反渗透膜片Reverse osmosis membrane
120120	进水导流网Influent diversion network	130130	纯水导流网Pure water diversion network
200200	中心管组Central tube group	210或210’或210’’210 or 210' or 210''	纯水管Pure water pipe
220或220’或220’’220 or 220’ or 220’’	废水管Waste water pipe	211211	纯水入水孔Pure water into the water hole
221221	废水入水孔Waste water into the water hole	212或212’212 or 212’	侧表面Side surface
213213	弧面段Curved section	214214	第一让位开口First yielding opening
215215	第一加强筋First stiffener	222222	废水导流槽Wastewater drainage channel
223223	第二让位开口Second yielding opening	224224	第二加强筋Second stiffener
300300	第一组件First component	410410	第一连接部First connection
420420	第二连接部Second connection	411411	防呆配合部Defence coordination department
421421	固定配合部Fixed mating part	510510	防呆安装部Dangerproof installation department
520520	固定安装部Fixed installation	601601	切割槽Cutting slot

本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

具体实施方式detailed description

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

需要说明，若本发明实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。It should be noted that if there is a directional indication (such as up, down, left, right, front, back, ...) in the embodiment of the present invention, the directional indication is only used to explain in a certain posture (as shown in the drawing) The relative positional relationship between the components, the motion situation, and the like, if the specific posture changes, the directional indication also changes accordingly.

另外，若本发明实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其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至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of the "first", "second", etc. is used for the purpose of description only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

本发明提出一种螺旋卷式反渗透膜元件。The invention provides a spiral wound reverse osmosis membrane element.

请参阅图1和图2，在本发明实施例中，该螺旋卷式反渗透膜元件包括：多个反渗透膜片组100及中心管组200，每一个所述反渗透膜片组100包括反渗透膜片110、进水导流网120以及纯水导流网130，所述进水导流网120和所述纯水导流网130分别设置在所述反渗透膜片110的正反两面；所述中心管组200包括纯水管210以及多个相互间隔设置的废水管220，多个所述废水管220环绕所述纯水管210排布；其中，每一个所述反渗透膜片组100均具有位于所述中心管组200内部的第一部分和位于所述中心管组200外部的第二部分，每一所述废水管220和所述纯水管210被一个所述反渗透膜片组100的第一部分隔开；多个所述反渗透膜片组100的第二部分形成围绕在所述中心管组200的周围的多层薄膜组件；其中，每一个所述反渗透膜片组100的进水导流网120不与所述纯水管210和其他的所述反渗透膜片组100的反渗透膜片110的反面接触；每一个所述反渗透膜片组100的纯水导流网130不与所述废水管220和其他的所述反渗透膜片组100的反渗透膜片110的正面接触。Referring to FIG. 1 and FIG. 2, in the embodiment of the present invention, the spiral wound reverse osmosis membrane element comprises: a plurality of reverse osmosis membrane groups 100 and a central tube group 200, and each of the reverse osmosis membrane groups 100 includes The reverse osmosis membrane 110, the influent diversion network 120, and the pure water diversion network 130, the inlet water diversion net 120 and the pure water diversion net 130 are respectively disposed on the front and back of the reverse osmosis membrane 110 The central tube set 200 includes a pure water pipe 210 and a plurality of waste water pipes 220 spaced apart from each other, and the plurality of waste water pipes 220 are arranged around the pure water pipe 210; wherein each of the reverse osmosis membranes The sheet set 100 has a first portion located inside the central tube set 200 and a second portion located outside the center tube set 200, and each of the waste water pipe 220 and the pure water pipe 210 is subjected to one of the reverse osmosis A first portion of the set of diaphragms 100 is spaced apart; a plurality of second portions of the set of reverse osmosis membranes 100 form a multilayer film assembly surrounding the central tube set 200; wherein each of the reverse osmosis membranes The inlet water guiding net 120 of the sheet set 100 is not associated with the pure water pipe 210 and other of the reverse osmosis membranes The reverse side contact of the reverse osmosis membrane 110 of the group 100; the pure water flow net 130 of each of the reverse osmosis membrane groups 100 does not reverse osmosis with the waste water pipe 220 and other of the reverse osmosis membrane group 100 The front side of the diaphragm 110 is in contact.

本发明技术方案的螺旋卷式反渗透膜元件的中心管组200包括纯水管210和多个环绕纯水管210的废水管220；螺旋卷式反渗透膜元件的每一废水管220对应一页反渗透膜片组100，从而可以实现多膜页卷取，可以增加流道数量，有利于提高原水通量，并解决反渗透膜片110过长渗透压力不足导致部分反渗透膜片110并未达到过滤目的的问题；由于该中心管组200被多页反渗透膜片组100卷绕在中心位置，因此在密封这些反渗透膜片组100两端后，可以形成多页反渗透膜片组100外侧边侧流进水，中间废水管220排出废水的原水水路；本发明的螺旋卷式反渗透膜元件使用时，原水通过侧流进水，流道变窄，进水面积减小，还可以采用低厚度的进水导流网120，继续减少进水面积，而流程也大大增长，因此可以增加原水与反渗透膜片110接触的时间，提高原水回收率；同时，因为减小了原水进水面积，可以加大反渗透膜片110表面水流速度（在进水通量一定时，进水通量Q与水流速度V之间的关系是V=Q/S；其中，S为进水面积，具体的，S=Ld；L为进水端膜片长度，d为截面厚度，侧流主要是减小了L，另外用小的进水导流网120自然减小了厚度d），因而能够减小反渗透膜片110表面浓差极化，降低该螺旋卷式反渗透膜元件的污染速度，有利于提高原水回收率，从而改善原水的浪费问题，实现高节水。The central tube set 200 of the spiral wound reverse osmosis membrane element of the technical solution of the present invention comprises a pure water pipe 210 and a plurality of waste water pipes 220 surrounding the pure water pipe 210; each waste water pipe 220 of the spiral wound reverse osmosis membrane element corresponds to one The reverse osmosis membrane group 100 can realize multi-film sheet winding, can increase the number of flow channels, is beneficial to increase the raw water flux, and solves the problem that the reverse osmosis membrane 110 has insufficient osmotic pressure to cause part of the reverse osmosis membrane 110. The problem of filtering is not achieved; since the central tube set 200 is wound around the center position by the multi-page reverse osmosis membrane group 100, after sealing the ends of the reverse osmosis membrane group 100, a multi-page reverse osmosis membrane can be formed. The outer side of the group 100 flows into the water, and the intermediate waste pipe 220 discharges the raw water channel of the waste water; when the spiral wound reverse osmosis membrane element of the present invention is used, the raw water passes through the side stream, the flow path is narrowed, and the water inlet area is reduced. It is also possible to use a low-intensity influent diversion net 120 to continue to reduce the influent area, and the flow is greatly increased, so that the contact time between the raw water and the reverse osmosis membrane 110 can be increased, and the raw water recovery rate can be increased; The raw water inlet area can increase the surface water velocity of the reverse osmosis membrane 110 (when the influent flux is constant, the relationship between the influent flux Q and the water flow velocity V is V=Q/S; where S is Inlet area, specifically, S=Ld; L is the length of the inlet end diaphragm, d is the section thickness, the side stream is mainly reduced by L, and the small inflow water guiding net 120 naturally reduces the thickness d Therefore, the concentration polarization of the surface of the reverse osmosis membrane 110 can be reduced, the contamination speed of the spiral wound reverse osmosis membrane element can be reduced, and the recovery rate of the raw water can be improved, thereby improving the waste of raw water and achieving high water saving.

上述进水导流网120和纯水导流网130分别设置在所述反渗透膜片110的正反两面，原水在反渗透膜片110的正面流动，并在渗透压力的作用下，从反渗透膜片110的正面向反渗透膜片110的反面渗透纯水，纯水产生在反渗透膜片110的反面并在纯水导流网130的导流作用下向纯水管210流动。其中，反渗透膜片110可以通过对折使得正面与正面邻接，反面与反面邻接，避免不必要的接触，从而防止纯水被污染；实际操作时，反渗透膜片110的对折时可以是正面向内对折也可以是反面向内对折，根据实际情况进行合理选取即可。请进一步参阅图2，在本实施例中，每一个所述反渗透膜片组100的反渗透膜片110正面向内对折设置，多个所述反渗透膜片组100的第二部分叠合并共同沿周向缠绕所述中心管组200；同一所述反渗透膜片110正面夹层之间形成进水流道；相邻两个所述反渗透膜片110的反面夹层之间形成产水流道；所述进水导流网120和所述废水管220位于进水流道中，所述纯水导流网130位于产水流道中。此时，进水流道与产水流道之间相互独立，并彻底隔离，能够有效的保证每一个所述反渗透膜片组100的进水导流网120不与所述纯水管210和其他的所述反渗透膜片组100的反渗透膜片110的反面接触；每一个所述反渗透膜片组100的纯水导流网130不与所述废水管220和其他的所述反渗透膜片组100的反渗透膜片110的正面接触；原水只在进水流道中流动最后由废水管220排出，纯水只在产水流道中流动最后由纯水管210排出，从而避免纯水污染，保证净化效果。The inflow water guiding net 120 and the pure water guiding net 130 are respectively disposed on the front and back sides of the reverse osmosis membrane 110, and the raw water flows on the front surface of the reverse osmosis membrane 110, and under the action of the osmotic pressure, The front side of the permeable membrane 110 penetrates the pure water on the reverse side of the reverse osmosis membrane 110, and the pure water is generated on the reverse side of the reverse osmosis membrane 110 and flows to the pure water pipe 210 under the flow of the pure water flow guiding net 130. Wherein, the reverse osmosis membrane 110 can be adjacent to the front surface by folding in the opposite direction, and the reverse surface and the reverse surface are adjacent to each other to avoid unnecessary contact, thereby preventing the pure water from being contaminated; in actual operation, the reverse osmosis membrane 110 can be folded in frontally and inwardly. The fold can also be reversed inwardly and folded in half, and can be reasonably selected according to the actual situation. Referring to FIG. 2, in the embodiment, the reverse osmosis membrane 110 of each of the reverse osmosis membrane groups 100 is folded inwardly in the front direction, and the second partial fusion of the plurality of the reverse osmosis membrane groups 100 is combined. The central tube group 200 is wound together in a circumferential direction; an inflow channel is formed between the front interlayers of the reverse osmosis membrane 110; and a water production channel is formed between the opposite sandwich layers of the two adjacent reverse osmosis membranes 110; The influent diversion network 120 and the waste water pipe 220 are located in an influent flow channel, and the pure water diversion net 130 is located in a product water flow channel. At this time, the inlet flow passage and the production water flow passage are independent from each other and completely isolated, and can effectively ensure that the inlet water guiding net 120 of each of the reverse osmosis membrane groups 100 is not associated with the pure water pipe 210 and the like. The reverse osmosis membrane 110 of the reverse osmosis membrane group 100 is in reverse contact; the pure water flow grid 130 of each of the reverse osmosis membrane groups 100 is not associated with the waste water pipe 220 and other said reverse osmosis The front side of the reverse osmosis membrane 110 of the membrane group 100 is in contact; the raw water flows only in the influent water channel and is finally discharged by the waste water pipe 220. The pure water flows only in the water producing flow passage and is finally discharged by the pure water pipe 210, thereby avoiding pure water pollution. Guarantee the purification effect.

为了能够顺利的将纯水导出，在本实施例中，可以设置所述产水流道除靠近所述纯水管210的侧边以外的其他侧边均闭合密封，以使得所述产水流道仅具有朝向所述纯水管210的纯水出口；此时产水流道形成一个三侧密封一侧开口的膜袋，膜袋口对着纯水管210，限定膜袋内的纯水只能朝纯水管210流动；原水在反渗透膜片110的作用后产生纯水，纯水形成在膜袋内并流动到袋口进入纯水管210中。In order to be able to smoothly drain the pure water, in the present embodiment, the water producing flow passage may be closed and sealed except for the side adjacent to the side of the pure water pipe 210, so that the water producing flow path is only Having a pure water outlet toward the pure water pipe 210; at this time, the product water flow channel forms a membrane bag with a three-side sealed side opening, and the membrane bag mouth faces the pure water pipe 210, and the pure water in the film bag can only be defined The pure water pipe 210 flows; the raw water generates pure water after the action of the reverse osmosis membrane 110, and the pure water is formed in the membrane bag and flows into the bag opening into the pure water pipe 210.

请参阅图3、图5和图6，该中心管组200中，所述纯水管210的周壁上开设有连通所述纯水管210的内部通道的纯水入水孔211；每一所述废水管220的周壁上开设有连通所述废水管220的内部通道的废水入水孔221。纯水和废水分别通过纯水入水孔211和废水入水孔221进入相应的通道中。其中，废水管220的具体数量决定了反渗透膜片组100的页数，也决定了纯水管210的尺寸，具体的，一页反渗透膜片组100对应一个废水管220设置，废水管220越多则反渗透膜片组100的页数越多，对应的螺旋卷式反渗透膜元件的通量也越大，而纯水管210的尺寸也相应越大。废水管220的具体数量、形状以及对应纯水管210的形状可以参照下述的具体实施例，并根据实际情况设置。Referring to FIG. 3, FIG. 5 and FIG. 6, in the central tube set 200, the peripheral wall of the pure water pipe 210 is provided with a pure water inlet hole 211 communicating with the internal passage of the pure water pipe 210; A waste water inlet hole 221 that communicates with the internal passage of the waste water pipe 220 is opened on the peripheral wall of the waste water pipe 220. The pure water and the wastewater enter the corresponding passage through the pure water inlet hole 211 and the waste water inlet hole 221, respectively. The specific quantity of the waste water pipe 220 determines the number of pages of the reverse osmosis membrane group 100, and also determines the size of the pure water pipe 210. Specifically, one page of the reverse osmosis membrane group 100 corresponds to one waste water pipe 220, and the waste water pipe The more the 220, the more the number of pages of the reverse osmosis membrane group 100, the larger the flux of the corresponding spiral-type reverse osmosis membrane element, and the larger the size of the pure water pipe 210. The specific number and shape of the waste water pipe 220 and the shape of the corresponding pure water pipe 210 can be referred to the specific embodiments described below, and are set according to actual conditions.

请具体参阅图1、图3和图4，在本发明的一实施例中，所述废水管220的数量为N个，N大于或等于3；所述纯水管210的横截面呈N边形设置，并对应具有N个侧表面，每一所述侧表面212上均设有所述纯水入水孔211；每一个所述废水管220对应一个所述侧表面212的位置设置。此时每一个所述废水管220朝向该侧表面212的一侧可以是平面，方便反渗透膜片组100伸入和卷绕。具体的，本实施例中，N=5，即废水管220的数量为5个，纯水管210的横截面大致呈正五边形设置，对应具有五个侧表面212，每一个所述废水管220对应一个所述侧表面212的位置设置。这种设置方式可以保证每个废水管220单独对应纯水管210的一个侧表面212，进行卷膜操作时互相之间不会彼此干扰，方便卷膜操作。为了保证每一个废水管220对应的反渗透膜片组100出产的纯水都能够及时的收集到纯水管210中，优选设置每一所述侧表面212上均间隔设有多个所述纯水入水孔211，且多个所述纯水入水孔211沿所述纯水管210的长度方向均匀排布，由此，每个位置的纯水都能够快速的流动到较近的纯水入水孔211中；为了能够及时排除废水，每一所述废水管220上均间隔设有多个所述废水入水孔221进入废水管220的内部通路，且多个所述废水入水孔221沿所述废水管220的长度方向均匀排布，保证每个位置的废水都能够快速的流动到较近的废水入水孔221中进入废水管220的内部通路。Referring to FIG. 1 , FIG. 3 and FIG. 4 , in an embodiment of the invention, the number of the waste water pipes 220 is N, N is greater than or equal to 3; the cross section of the pure water pipe 210 is N sides. The plurality of side surfaces are disposed on the side surface 212, and each of the side surfaces 212 is provided with the pure water inlet hole 211; and each of the waste water pipes 220 is disposed corresponding to a position of the side surface 212. At this time, the side of each of the waste water pipes 220 facing the side surface 212 may be a flat surface for facilitating the penetration and winding of the reverse osmosis membrane group 100. Specifically, in the embodiment, N=5, that is, the number of the waste water pipes 220 is five, and the cross section of the pure water pipe 210 is substantially in the shape of a regular pentagon, corresponding to five side surfaces 212, each of the waste water pipes. 220 corresponds to the positional setting of one of the side surfaces 212. This arrangement ensures that each of the waste water pipes 220 individually corresponds to one side surface 212 of the pure water pipe 210, and does not interfere with each other during the film winding operation, facilitating the operation of the film winding. In order to ensure that the pure water produced by the reverse osmosis membrane group 100 corresponding to each of the waste water pipes 220 can be collected into the pure water pipe 210 in time, it is preferable to provide a plurality of the pure ones on each of the side surfaces 212. The water enters the water hole 211, and a plurality of the pure water inlet holes 211 are evenly arranged along the length direction of the pure water pipe 210, whereby the pure water at each position can quickly flow to the near pure water into the water. In the hole 211, in order to be able to remove the waste water in time, each of the waste water pipes 220 is spaced apart from the internal passage of the waste water inlet hole 221 into the waste water pipe 220, and a plurality of the waste water inlet holes 221 are along The length direction of the waste water pipe 220 is evenly arranged, so that the waste water at each position can be quickly flowed into the internal passage of the waste water inlet hole 221 into the waste water pipe 220.

请参阅图9，在本发明的另一实施例中，所述废水管220’的数量为两个；所述纯水管210’为扁管，以使得所述纯水管210’具有两个侧表面212’，每一所述侧表面212’上均设有所述纯水入水孔（未图示）；每一个所述废水管220’对应一个所述侧表面212’的位置设置；此时每一个所述废水管220’朝向该侧表面212’的一侧可以是平面或曲面。这种设置方式可以保证每个废水管220’单独对应纯水管210’的一个侧表面212’，进行卷膜操作时互相之间不会彼此干扰，方便卷膜操作；同时这种结构最为简单，废水管220’数量少，便于生产，比较适用于通量偏小的膜元件中。其中，为了保证每一个废水管220’对应的反渗透膜片组100出产的纯水都能够及时的收集到纯水管210’中，优选设置每一所述侧表面212’上均间隔设有多个所述纯水入水孔，且多个所述纯水入水孔沿所述纯水管210’的长度方向均匀排布，由此，每个位置的纯水都能够快速的流动到较近的纯水入水孔中；为了能够及时排除废水，每一所述废水管220’上均间隔设有多个所述废水入水孔（未图示）进入废水管220’的内部通路，且多个所述废水入水孔沿所述废水管220’的长度方向均匀排布，保证每个位置的废水都能够快速的流动到较近的废水入水孔中进入废水管220’的内部通路。Referring to FIG. 9, in another embodiment of the present invention, the number of the waste water pipes 220' is two; the pure water pipe 210' is a flat pipe, so that the pure water pipe 210' has two The side surface 212' is provided with the pure water inlet hole (not shown) on each of the side surfaces 212'; each of the waste water pipes 220' is disposed corresponding to a position of the side surface 212'; The side of each of the waste water pipes 220' facing the side surface 212' may be a flat surface or a curved surface. This arrangement ensures that each of the waste water pipes 220' individually corresponds to one side surface 212' of the pure water pipe 210', and does not interfere with each other during the film winding operation, facilitating the operation of the film winding; and the structure is the simplest The waste water pipe 220' is small in quantity and convenient for production, and is suitable for use in a membrane element having a small flux. In order to ensure that the pure water produced by the reverse osmosis membrane group 100 corresponding to each waste water pipe 220' can be collected into the pure water pipe 210' in time, it is preferable to provide each of the side surfaces 212' at intervals. a plurality of the pure water inlet holes, and a plurality of the pure water inlet holes are evenly arranged along the length direction of the pure water pipe 210', whereby the pure water at each position can quickly flow to a closer The pure water enters the water hole; in order to be able to remove the waste water in time, each of the waste water pipes 220' is spaced apart from the internal passage of the waste water inlet hole (not shown) into the waste water pipe 220', and a plurality of The waste water inlet holes are evenly arranged along the length direction of the waste water pipe 220', so that the waste water at each position can quickly flow to the internal passage of the near waste water inlet hole into the waste water pipe 220'.

请参阅图10，在本发明的又一实施例中，所述纯水管210’’的横截面呈圆形设置，所述纯水管210’’的周壁沿其周向对应多个所述废水管220’’划分为多个弧面段213，每一所述弧面段213上均设有所述纯水入水孔（未图示）；每一所述废水管220’’对应一个所述弧面段213的位置设置。在本实施例中，将，本实施例中，废水管220’’的数量为6个，纯水管210’’的周壁沿其周向对应多个所述废水管220’’划分为6个弧面段213，每一个所述废水管220’’对应一个所述弧面段213的位置设置。这种设置方式可以保证每个废水管220’’单独对应纯水管210’’的一个弧面段213，进行卷膜操作时互相之间不会彼此干扰，方便卷膜操作。为了保证每一个废水管220’’对应的反渗透膜片组100出产的纯水都能够及时的收集到纯水管210’’中，优选设置每一所述弧面段213上均间隔设有多个所述纯水入水孔（未图示），且多个所述纯水入水孔沿所述纯水管210’’的长度方向均匀排布，由此，每个位置的纯水都能够快速的流动到较近的纯水入水孔中；为了能够及时排除废水，每一所述废水管220’’上均间隔设有多个所述废水入水孔（未图示）进入废水管220’’的内部通路，且多个所述废水入水孔沿所述废水管220’’的长度方向均匀排布，保证每个位置的废水都能够快速的流动到较近的废水入水孔中进入废水管220’’的内部通路。Referring to FIG. 10, in another embodiment of the present invention, the pure water pipe 210" has a circular cross section, and the peripheral wall of the pure water pipe 210" corresponds to a plurality of the circumferential direction thereof. The waste water pipe 220'' is divided into a plurality of curved surface sections 213, and each of the curved surface sections 213 is provided with the pure water inlet holes (not shown); each of the waste water pipes 220'' corresponds to one The position setting of the arc segment 213 is described. In this embodiment, in the present embodiment, the number of the waste water pipes 220'' is six, and the peripheral wall of the pure water pipe 210'' is divided into six according to the circumferential direction thereof corresponding to the plurality of waste water pipes 220''. The arcuate section 213, each of the waste water pipes 220'' is disposed corresponding to a position of one of the arcuate sections 213. This arrangement ensures that each of the waste water pipes 220'' individually corresponds to a curved surface section 213 of the pure water pipe 210'', which does not interfere with each other during the film winding operation, and facilitates the film winding operation. In order to ensure that the pure water produced by the reverse osmosis membrane group 100 corresponding to each of the waste water pipes 220 ′′ can be collected into the pure water pipe 210 ′′ in time, it is preferable to provide each of the curved surface sections 213 at intervals. a plurality of the pure water inlet holes (not shown), and a plurality of the pure water inlet holes are evenly arranged along the longitudinal direction of the pure water pipe 210", whereby pure water at each position can be Rapidly flowing into the relatively pure water inlet hole; in order to be able to timely remove the waste water, each of the waste water pipes 220'' is spaced apart from the waste water inlet hole (not shown) into the waste water pipe 220' 'The internal passage, and a plurality of the waste water inlet holes are evenly arranged along the length direction of the waste water pipe 220'', so that the waste water at each position can be quickly flowed into the near-water wastewater inlet hole into the waste water pipe. 220'' internal access.

请参阅图3，为了方便卷膜操作，可以设置所述纯水管210和多个所述废水管220共同组合形成圆柱体形；卷膜时，中心管组200旋转时比较均匀，不容易发生歪斜，同时卷制成品的外观也会比较均匀，便于卷制成品的安装到螺旋卷式反渗透膜元件的壳体中，也便于螺旋卷式反渗透膜元件的端盖与卷制成品的对准和密封。Referring to FIG. 3, in order to facilitate the operation of the film winding, the pure water pipe 210 and the plurality of the waste water pipes 220 may be combined to form a cylindrical shape; when the film is wound, the central pipe group 200 is relatively uniform when rotated, and is not prone to skew. At the same time, the appearance of the rolled product will be relatively uniform, which is convenient for the installation of the rolled product into the casing of the spiral wound reverse osmosis membrane element, and also facilitates the end cap and the rolled product of the spiral wound reverse osmosis membrane element. Alignment and sealing.

请参阅图6和图8，为了达到更好的导流效果，在本发明的螺旋卷式反渗透膜元件的中心管组200中，所述废水管220的周壁上开设有废水导流槽222，所述废水入水孔221设于所述废水导流槽222内。废水导流槽222的具体设置位置、形状和数量，可以根据具体情况选取，在本实施例中，该废水管220上间隔设有多个沿废水管220周向延伸的废水导流槽222，每一废水导流槽222内都设有一个废水入水孔221，废水导流槽222具有集水和导流的效果，能够帮助废水更准确快速的进入废水管220中。其他形状的废水导流槽222也能够实现集水和导流的效果，在此不做进一步限定。Referring to FIG. 6 and FIG. 8, in order to achieve a better flow guiding effect, in the central tube set 200 of the spiral wound reverse osmosis membrane element of the present invention, a waste water guiding groove 222 is opened on the peripheral wall of the waste water pipe 220. The waste water inlet hole 221 is disposed in the waste water drainage channel 222. The specific position, shape and quantity of the waste water guiding channel 222 can be selected according to the specific situation. In the embodiment, the waste water pipe 220 is provided with a plurality of waste water guiding channels 222 extending along the circumferential direction of the waste water pipe 220. Each of the wastewater guiding channels 222 is provided with a wastewater inlet hole 221. The wastewater guiding channel 222 has the effects of collecting water and diverting water, and can help the wastewater to enter the wastewater pipe 220 more accurately and quickly. Other shapes of the waste water guiding groove 222 can also achieve the effects of water collecting and guiding, and are not further limited herein.

实际生产纯水管210时，由于纯水管210一般长度较长，而半径较小，因此生产时内滑块沿轴向抽芯困难，导致纯水管210无法快速量产，为了解决这个问题，请参阅图5和图7，在本实施例的中心管组200中，该纯水管210的周壁上开设有沿所述纯水管210长度方向延伸的第一让位开口214，生产该纯水管210时整个内滑块可以拆分为上中下三个滑块，中滑块可以通过第一让位开口214侧向抽芯，上下两个滑块可以分别通过两端管口抽芯，大大减小了生产难度，有利于纯水管210的快速量产。同时，第一让位开口214还能够起到纯水进水孔的功能，供纯水通过进入到纯水管210的内部通道中。由于纯水管210的整个外周壁在卷膜时都会受到挤压，为了防止膜片受压后在第一让位开口214处变形导致压伤，在本实施例中，所述第一让位开口214内设有第一加强筋215，所述第一加强筋215的两端分别连接所述第一让位开口214的不同的两条边。通过第一加强筋215对反渗透膜片组100的膜片进行支撑，能够有效防止反渗透膜片组100的膜片压伤。在本实施例中，第一加强筋215沿长度方向延伸，第一加强筋215的两端分别连接所述第一让位开口214的两个短边；显然第一加强筋215的设置方式不限于本实施例的具体方式，只要能够是实现支撑、不影响水路通畅并且不影响生产成型的结构都可以应用于本发明的技术方案中，第一加强筋215的具体设置数量、位置、形状都可以根据实际需要进行选取，在此不再赘述。When the pure water pipe 210 is actually produced, since the pure water pipe 210 generally has a long length and a small radius, it is difficult to draw the core in the axial direction during production, which causes the pure water pipe 210 to be mass-produced in a rapid manner, in order to solve this problem. Referring to FIG. 5 and FIG. 7 , in the central tube set 200 of the embodiment, the first retaining opening 214 extending along the length of the pure water pipe 210 is opened on the peripheral wall of the pure water pipe 210. When the pure water pipe 210 is used, the entire inner slide can be split into upper, middle and lower three sliders, and the middle slide can be laterally drawn through the first letting opening 214, and the upper and lower slides can be respectively pumped through the nozzles at both ends. The core greatly reduces the production difficulty and facilitates the rapid mass production of the pure water pipe 210. At the same time, the first yielding opening 214 can also function as a pure water inlet hole for the pure water to pass into the internal passage of the pure water pipe 210. Since the entire outer peripheral wall of the pure water pipe 210 is pressed at the time of winding the film, in order to prevent the film from being deformed at the first yielding opening 214 after being pressed, the first insufficiency is caused. A first reinforcing rib 215 is disposed in the opening 214 , and two ends of the first reinforcing rib 215 are respectively connected to different two sides of the first letting opening 214 . The diaphragm of the reverse osmosis membrane group 100 is supported by the first rib 215, and the diaphragm crush of the reverse osmosis membrane group 100 can be effectively prevented. In this embodiment, the first reinforcing rib 215 extends along the length direction, and the two ends of the first reinforcing rib 215 are respectively connected to the two short sides of the first letting opening 214; obviously, the first reinforcing rib 215 is not disposed. The specific number, position, and shape of the first reinforcing rib 215 are all applicable to the technical solution of the present invention as long as it can be applied to the technical solution of the present invention as long as it can be supported without affecting the water passage and does not affect the production molding. It can be selected according to actual needs, and will not be described here.

生产废水管220时，考虑到抽芯问题，可以参考上述纯水管210的设置方式，请参阅图6和图8，在所述废水管220的周壁上开设有沿所述废水管220长度方向延伸的第二让位开口223，减小废水管220的生产难度，有利于废水管220的快速量产。同时，第二让位开口223还能够起到废水入水孔221的功能，供废水通过进入到废水管220的内部通道中。为了废水管220处的膜片受压后在第二让位开口223处变形导致压伤，在本实施例中，所述第二让位开口223设于所述废水管220朝向纯水管210的一侧，这个位置受力相对较小，不容易发生损伤。还可以在第二让位开口223内设置第二加强筋224，所述第二加强筋224的两端分别连接所述第二让位开口223的不同的两条边。通过第二加强筋224对反渗透膜片组100的膜片进行支撑，能够有效防止反渗透膜片组100的膜片在过滤过程中压入第一让位开口214中导致压伤，进而导致脱盐率降低的问题；只要能够是实现支撑、不影响水路通畅并且不影响生产成型的第二加强筋224结构都可以应用于本发明的技术方案中，第二加强筋224的具体设置数量、位置、形状都可以根据实际需要进行选取，在此不再赘述。When the waste water pipe 220 is produced, in consideration of the core pulling problem, reference may be made to the arrangement of the pure water pipe 210 described above. Referring to FIG. 6 and FIG. 8, the circumferential wall of the waste water pipe 220 is opened along the length direction of the waste water pipe 220. The extended second yielding opening 223 reduces the production difficulty of the waste water pipe 220 and facilitates rapid mass production of the waste water pipe 220. At the same time, the second yielding opening 223 can also function as a waste water inlet hole 221 for the wastewater to pass into the internal passage of the waste water pipe 220. In the present embodiment, the second yielding opening 223 is disposed in the waste water pipe 220 toward the pure water pipe 210, so that the diaphragm at the waste water pipe 220 is deformed at the second retaining opening 223 to cause crushing. On one side, this position is relatively small and is not susceptible to damage. A second reinforcing rib 224 is further disposed in the second retaining opening 223, and two ends of the second reinforcing rib 224 are respectively connected to different two sides of the second retaining opening 223. Supporting the diaphragm of the reverse osmosis membrane group 100 by the second reinforcing rib 224 can effectively prevent the membrane of the reverse osmosis membrane group 100 from being pressed into the first yielding opening 214 during the filtration process, thereby causing crushing, thereby causing The problem of the reduction of the salt rejection rate; as long as the second reinforcement rib 224 structure capable of achieving the support, not affecting the water passage and not affecting the production molding can be applied to the technical solution of the present invention, the specific number and position of the second reinforcement rib 224 The shapes and shapes can be selected according to actual needs, and will not be described here.

为了方便收集纯水，请参阅图5，其中带箭头的虚线指示的是水流方向，可以设置所述纯水管210的一端口被封堵，以使得纯水向所述纯水管的另一端口流动；此时，纯水流动方向一定，能够可靠的收集纯水，为了方便导出废水，请参阅图6，其中带箭头的虚线指示的是水流方向，可以设计至少一个所述废水管220的一端口被封堵，以使得废水向另一端口流动；封堵后，废水流动方向一定，能够可靠的收集废水。在实际使用时，螺旋卷式反渗透膜元件一般是竖直放置的，此时，对应的所述纯水管210和多个所述废水管220也沿竖直方向摆放，此时，通常设置所述纯水管210的下端口被封堵，多个所述废水管220的下端口均被封堵，从上端收集纯水和废水，水流均匀，且便于管路的设计。In order to facilitate the collection of pure water, please refer to FIG. 5, in which the dotted line with an arrow indicates the direction of water flow, and one port of the pure water pipe 210 may be set to be blocked so that pure water is directed to the pure water pipe. The port flows; at this time, the pure water flows in a certain direction, and the pure water can be collected reliably. For the convenience of deriving the wastewater, please refer to FIG. 6 , wherein the dotted line with an arrow indicates the direction of the water flow, and at least one of the waste water pipes 220 can be designed. One port is blocked to allow the wastewater to flow to the other port; after the plugging, the flow direction of the wastewater is constant, and the wastewater can be collected reliably. In actual use, the spiral wound reverse osmosis membrane element is generally placed vertically, and at this time, the corresponding pure water pipe 210 and the plurality of the waste water pipes 220 are also placed in a vertical direction. The lower port of the pure water pipe 210 is blocked, and the lower ports of the plurality of waste water pipes 220 are blocked, and pure water and waste water are collected from the upper end, the water flow is uniform, and the design of the pipeline is facilitated.

请参阅图11，本发明还提供一种上述的螺旋卷式反渗透膜元件的卷膜方法，该卷膜方法具体包括如下步骤：Referring to FIG. 11, the present invention further provides a roll film method for the above spiral wound reverse osmosis membrane element, which comprises the following steps:

步骤S1，将多个所述反渗透膜片组100的第一部分伸入所述中心管组200内，使得每一所述废水管220和所述纯水管210被一个所述反渗透膜片组100的第一部分隔开。通过将每一页反渗透膜片组100的第一部分伸入到所述中心管组200内的纯水管210与废水管220之间，通过反渗透膜片110的正反两面进行流道的区分，产生纯水的反渗透膜片110的反面与纯水管210相邻接，而产生废水的反渗透膜片110的正面与废水管220相连接，实现纯水与原水的隔离。Step S1, a plurality of the first portions of the reverse osmosis membrane group 100 are projected into the central tube group 200 such that each of the waste water pipes 220 and the pure water pipes 210 are subjected to one of the reverse osmosis membranes. The first portion of group 100 is spaced apart. By extending the first portion of each page of the reverse osmosis membrane group 100 between the pure water pipe 210 and the waste water pipe 220 in the central pipe group 200, the flow path is carried out through the front and back sides of the reverse osmosis membrane 110. It is distinguished that the reverse side of the reverse osmosis membrane 110 which produces pure water is adjacent to the pure water pipe 210, and the front surface of the reverse osmosis membrane 110 which produces waste water is connected with the waste water pipe 220 to realize the isolation of the pure water from the raw water.

步骤S2，将多个所述反渗透膜片组100的第二部分围绕在所述中心管组200的周围。将多页所述反渗透膜片组100的第二部分以中心管组200为中心，通过缠绕、来回弯折等方式围绕在中心管组200的周围，自中心管组200周围形成多条流道，为原水和纯水的流动提供流道；当然围绕排布时，需要注意相应的进水流道和产水流道的隔离。In step S2, a plurality of second portions of the reverse osmosis membrane group 100 are surrounded around the central tube group 200. The plurality of pages of the second portion of the reverse osmosis membrane group 100 are centered on the central tube group 200, and are wound around the central tube group 200 by winding, back-and-forward bending, etc., forming a plurality of streams from the center tube group 200. The channel provides a flow path for the flow of raw water and pure water; of course, when it is arranged, it is necessary to pay attention to the isolation of the corresponding inlet flow channel and the product water flow channel.

卷膜时，按照上述步骤的操作原则进行即可，符合上述操作原则的操作都可以应用于本发明的卷膜方法中。When the film is wound, it can be carried out in accordance with the operation principle of the above steps, and the operation in accordance with the above operational principle can be applied to the film winding method of the present invention.

下面以实施例一所示的螺旋卷式反渗透膜元件为例，具体阐述本卷膜方法各步骤的操作，以纯水管210的前方作为操作人员的操作工位。The spiral wound reverse osmosis membrane element shown in the first embodiment is taken as an example to specifically explain the operation of each step of the film winding method, and the front side of the pure water pipe 210 is used as an operation station of the operator.

其中，请参阅图12，并结合图1至图3进行理解，所述步骤S1具体包括：Referring to FIG. 12, and with reference to FIG. 1 to FIG. 3, the step S1 specifically includes:

S11，将一所述反渗透膜片110自前向后绕过一所述废水管220后，再向前折叠而缠绕在所述废水管220上，以使所述反渗透膜片110的正面相对形成夹层，并将一所述进水导流网120置于所述夹层内，制得一个第一组件300；重复前述操作，制得多个所述第一组件300。S11, a reverse osmosis membrane 110 is wound from the front to the back through a waste water pipe 220, and then folded forward and wound on the waste water pipe 220 so that the front surface of the reverse osmosis membrane 110 is opposite. A sandwich is formed and a water inflow diversion screen 120 is placed in the interlayer to produce a first component 300; the foregoing operations are repeated to produce a plurality of the first components 300.

请参阅图13，每一个所述反渗透膜片组100的反渗透膜片110正面向内对折设置，使得同一所述反渗透膜片110正面夹层之间形成独立的进水流道，所述进水导流网120和所述废水管220位于进水流道中，并且废水管220设于该第一组件300的后端。为了方便卷膜时的废水管220的安装，还需要对应在废水管220的两端设置安装结构，在纯水管210的连接机构上设置对应的配合结构，使得废水管220可以固定安装到纯水管210上，同时卷膜时，反渗透膜片110的宽度应该大于废水管的长度，方便后续打胶和切割操作。Referring to FIG. 13, the reverse osmosis membrane 110 of each of the reverse osmosis membrane groups 100 is disposed inwardly and inwardly, so that an independent water inlet flow path is formed between the front interlayers of the reverse osmosis membrane 110. The water flow network 120 and the waste water pipe 220 are located in the water inlet flow path, and the waste water pipe 220 is disposed at the rear end of the first assembly 300. In order to facilitate the installation of the waste water pipe 220 when the film is rolled, it is also necessary to provide a mounting structure at both ends of the waste water pipe 220, and a corresponding fitting structure is provided on the connection mechanism of the pure water pipe 210, so that the waste water pipe 220 can be fixedly mounted to the pure On the water pipe 210, when the film is rolled at the same time, the width of the reverse osmosis membrane 110 should be larger than the length of the waste pipe to facilitate subsequent rubberizing and cutting operations.

S12，将所述纯水管210安装到卷膜机上，将一置于所述纯水管210前方的所述纯水导流网130固定在所述纯水管210上。S12, the pure water pipe 210 is mounted on the winder, and the pure water guiding net 130 placed in front of the pure water pipe 210 is fixed on the pure water pipe 210.

为了将纯水管210安装到卷膜机上，需要在纯水管210两端设置与卷膜机的转轴相连接的连接机构。本步骤中的纯水导流网130可以通过超声波焊接或粘接固定到纯水管210的不设置第一让位开口214的一个表面。后续操作中，卷膜机启动后即可带动纯水管210和安装到纯水管210上个元件转动。In order to mount the pure water pipe 210 to the winder, it is necessary to provide a connection mechanism connected to the rotating shaft of the winder at both ends of the pure water pipe 210. The pure water flow guiding net 130 in this step may be fixed to one surface of the pure water pipe 210 where the first yielding opening 214 is not provided by ultrasonic welding or bonding. In the subsequent operation, after the film rolling machine is started, the pure water pipe 210 and the upper component mounted on the pure water pipe 210 can be rotated.

本步骤中还可以启动卷膜机进行卷曲，使得该纯水导流网130可以绕纯水管210一圈，使得纯水导流网130能够更可靠的定位。In this step, the winder can be started to be curled, so that the pure water guiding net 130 can be wound around the pure water pipe 210, so that the pure water guiding net 130 can be positioned more reliably.

S13，将一所述第一组件300安装到所述纯水管210上，使该第一组件300的废水管220置于所述纯水管210的前方，使该第一组件300的反渗透膜片110和进水导流网120叠置于前一个所述纯水导流网130上。S13, a first component 300 is mounted on the pure water pipe 210, and the waste pipe 220 of the first component 300 is placed in front of the pure water pipe 210 to reverse osmosis the first component 300. The diaphragm 110 and the inlet water guiding net 120 are stacked on the previous one of the pure water guiding nets 130.

本步骤的前一个所述纯水导流网130，指的是前一个步骤固定的纯水导流网130。 The pure water deflector 130 of the previous step of this step refers to the pure water deflector 130 fixed in the previous step.

请参阅图13至图15，所述连接机构包括设于纯水管210两端的第一连接部410和第二连接部420，第一连接部410上设置了防呆配合部411，第二连接部420上设置的固定配合部421，该安装结构包括分别设置在废水管220的两端的防呆安装部510和固定安装部520，其中防呆安装部510与防呆配合部411配合安装，防止废水管220装反，固定配合部421和固定安装部520配合连接，实现废水管220的安装。其中，防呆配合部411和固定配合部421可以是形状不同的凹槽，而防呆安装部510和固定安装部520可以是相应的凸块，通过插接和过盈配合实现安装。Referring to FIG. 13 to FIG. 15 , the connecting mechanism includes a first connecting portion 410 and a second connecting portion 420 disposed at two ends of the pure water pipe 210 . The first connecting portion 410 is provided with a foolproof mating portion 411 and a second connection. The fixing portion 421 is disposed on the portion 420, and the mounting structure includes a foolproof mounting portion 510 and a fixed mounting portion 520 respectively disposed at both ends of the waste water pipe 220, wherein the foolproof mounting portion 510 is installed in cooperation with the foolproof fitting portion 411 to prevent The waste pipe 220 is reversed, and the fixed fitting portion 421 and the fixed mounting portion 520 are coupled to each other to realize the installation of the waste pipe 220. The anti-doing fitting portion 411 and the fixing mating portion 421 may be grooves of different shapes, and the foolproof mounting portion 510 and the fixed mounting portion 520 may be corresponding bumps, and the mounting is achieved by plugging and interference fit.

S14，在将当前安装到所述纯水管210上的所述第一组件300的上表面的前端边沿和左右两端边沿上打胶后，粘合一片所述纯水导流网130；S14, after the front end edge and the left and right end edges of the upper surface of the first component 300 currently mounted on the pure water pipe 210 are glued, a piece of the pure water flow guiding net 130 is bonded;

请参阅图15，其中虚线指示是打胶的范围，本步骤中打的胶可以是聚氨酯胶水，由于纯水导流网130设有多孔，在后续卷膜操作时，胶水可以渗透纯水导流网130从而粘合纯水导流网130另一面的反渗透膜片110。打胶的位置要对准废水管220与对应的防呆安装部510和固定安装部520的邻接位置，以及纯水管210与第一连接部410和第二连接部420的邻接位置，可以在这个位置设置切割槽601，卷膜完成后沿切割槽601切割分离第一连接部410、第二连接部420、防呆安装部510和固定安装部520时，不会影响对应的纯水流道的密封。粘合的纯水导流网130的后端需要紧贴纯水管210，使得能够更好的将纯水导流到纯水管210处。Please refer to FIG. 15 , wherein the dotted line indicates the range of the glue. The glue used in this step may be a polyurethane glue. Since the pure water flow guiding net 130 is porous, the glue can penetrate the pure water diversion during the subsequent film winding operation. The mesh 130 thereby bonds the reverse osmosis membrane 110 on the other side of the pure water flow directing web 130. The position of the glue is aligned with the adjacent position of the waste pipe 220 and the corresponding foolproof mounting portion 510 and the fixed mounting portion 520, and the adjacent position of the pure water pipe 210 with the first connecting portion 410 and the second connecting portion 420 may be The cutting groove 601 is disposed at this position, and when the winding film is completed, the first connecting portion 410, the second connecting portion 420, the foolproof mounting portion 510, and the fixed mounting portion 520 are cut and separated along the cutting groove 601, and the corresponding pure water flow path is not affected. Sealed. The rear end of the bonded pure water flow guiding net 130 needs to be in close contact with the pure water pipe 210, so that the pure water can be better conducted to the pure water pipe 210.

S15，启动所述卷膜机，所述卷膜机带动所述纯水管210以及安装于所述纯水管210上的所述第一组件300转动预设角度，以使当前安装到所述纯水管210上的所述第一组件300将前一个所述纯水导流网130压于下方并转动至所述纯水管210的后方。S15, the film rolling machine is started, the film winding machine drives the pure water pipe 210 and the first component 300 mounted on the pure water pipe 210 to rotate by a preset angle to enable the current installation to the The first assembly 300 on the pure water pipe 210 presses the former one of the pure water flow guiding nets 130 downward and rotates to the rear of the pure water pipe 210.

本步骤中进行转动，是为了将安装好的第一组件300移出操作工位，便于下个第一组件300能够在操作工位进行安装；移动的预设角度根据废水管220的个数（对应第一组件300的个数）进行设置，当所述废水管220的数量为M（M大于或等于2）个时，所述预设角度为360/M度，转过上述角度后，刚好能够将安装好的第一组件300移出，并将下一个第一组件300的安装位置移动到操作工位。从右侧观察时，本步骤的旋转方向为逆时针，此时当前安装好的第一组件300可以压住下面的纯水导流网130，对下面的反渗透膜片110或导流网进行定位，避免已经安装好的各个元件移动而影响后续操作。The rotation in this step is for moving the installed first component 300 out of the operation station, so that the next first component 300 can be installed at the operation station; the preset angle of the movement is according to the number of the waste water pipes 220 (corresponding The number of the first components 300 is set. When the number of the waste water pipes 220 is M (M is greater than or equal to 2), the preset angle is 360/M degrees, and after the above angles are rotated, it is just capable of The installed first component 300 is removed and the mounting position of the next first component 300 is moved to the operating station. When viewed from the right side, the rotation direction of this step is counterclockwise, and the currently installed first component 300 can press the pure water guiding net 130 below to perform the reverse osmosis membrane 110 or the diversion net below. Positioning avoids the movement of individual components that have been installed to affect subsequent operations.

S16，将另一所述第一组件300安装到所述纯水管210上，使该第一组件300的废水管220置于所述纯水管210的前方，使该第一组件300的反渗透膜片110和进水导流网120叠置于前一个所述第一组件300的纯水导流网130上。S16, the other first component 300 is mounted on the pure water pipe 210, and the waste pipe 220 of the first component 300 is placed in front of the pure water pipe 210, so that the first component 300 is reversed. The permeable membrane 110 and the influent diversion web 120 are superposed on the pure water deflector 130 of the former first assembly 300.

本步骤安装的第一组件300的反渗透膜片110的反面，与邻接的第一组件300的反渗透膜片110的反面，共同组成产水流道，并在胶水的粘合作用下，使得该产水流道除靠近所述纯水管210的侧边以外的其他侧边均闭合密封，以使得所述产水流道仅具有朝向所述纯水管210的纯水出口；此时产水流道形成一个三侧密封一侧开口的膜袋，膜袋口对着纯水管210，限定膜袋内的纯水只能朝纯水管210流动；原水在反渗透膜片110的作用后产生纯水，纯水形成在膜袋内并流动到袋口进入纯水管210中。The reverse side of the reverse osmosis membrane 110 of the first component 300 installed in this step, together with the reverse side of the reverse osmosis membrane 110 of the adjacent first component 300, constitutes a water producing flow path, and under the bonding action of the glue, the The production water flow channel is closed and sealed except for the side edges adjacent to the side of the pure water pipe 210, so that the water production flow path has only a pure water outlet toward the pure water pipe 210; at this time, the water production channel is formed. A membrane bag with one side sealed on one side, the membrane bag mouth facing the pure water pipe 210, the pure water in the film bag is limited to flow only to the pure water pipe 210; the raw water generates pure water after the action of the reverse osmosis membrane 110 Pure water is formed in the membrane bag and flows into the mouth of the bag into the pure water pipe 210.

重复步骤S14至S16，直至多个所述第一组件300均安装到位；转入步骤S17；Steps S14 to S16 are repeated until a plurality of the first components 300 are all installed in position; and the process proceeds to step S17;

S17，在最后一个所述第一组件300的上表面的前端边沿和左右两侧边沿上打胶后，与所述步骤S12中固定在所述纯水管210上的纯水导流网130相互粘合。 S17, after the front end edge and the left and right side edges of the upper surface of the last one of the first components 300 are glued, the pure water flow guiding net 130 fixed to the pure water pipe 210 in the step S12 is mutually Bonding.

此时，所有的废水管220都安装到位，对应的反渗透膜片组100也安装到位；实现了废水管220与纯水管210的隔离；限定出了产水流道和进水流道，为后续卷取操作提供基础。At this time, all the waste water pipes 220 are installed in place, and the corresponding reverse osmosis membrane group 100 is also installed; the separation of the waste water pipe 220 from the pure water pipe 210 is realized; the water production flow path and the water inlet flow path are defined, which are The take-up operation provides the basis.

所述步骤S2具体包括：The step S2 specifically includes:

S21，将多个所述反渗透膜片组100的第二部分叠合后，启动所述卷膜机，带动所述纯水管210以及安装于所述纯水管210上的所述第一组件300按照所述步骤S15的中的转动方向转动，直至多个所述反渗透膜片组100的第二部分全部卷绕到所述中心管组200上。S21, after stacking a plurality of the second portions of the reverse osmosis membrane group 100, starting the winder, driving the pure water pipe 210 and the first one mounted on the pure water pipe 210 The assembly 300 is rotated in the rotational direction in the step S15 until the second portions of the plurality of the reverse osmosis membrane groups 100 are all wound onto the central tube set 200.

按照步骤S15的中的转动方向转动（从右侧观察时，本步骤的旋转方向为逆时针），使得多页反渗透膜片组100能够依次叠合，最终能够形成多条平滑的螺旋形流路，相较于不规则的水路而言，原水和纯水流动更均匀，从而达到更好的净水效果。Rotating according to the rotation direction in step S15 (the rotation direction of this step is counterclockwise when viewed from the right side), so that the multi-page reverse osmosis membrane group 100 can be sequentially stacked, and finally a plurality of smooth spiral flows can be formed. Road, compared to the irregular waterway, the raw water and pure water flow more evenly, so as to achieve a better water purification effect.

本发明还提出一种反渗透***，该反渗透***包括螺旋卷式反渗透膜元件，该螺旋卷式反渗透膜元件的具体结构参照上述实施例，由于本反渗透***采用了上述所有实施例的全部技术方案，因此同样具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。The invention also provides a reverse osmosis water purifier comprising a spiral wound reverse osmosis membrane element, the specific structure of the spiral wound reverse osmosis membrane element is referred to the above embodiment, due to the reverse osmosis water purifier All the technical solutions of all the above embodiments are adopted, so that all the beneficial effects brought by the technical solutions of the above embodiments are also provided, and details are not described herein again.

应当说明的是，本发明的各个实施例的技术方案可以相互结合，但是必须是以本领域的技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当人认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。It should be noted that the technical solutions of the various embodiments of the present invention may be combined with each other, but must be based on the realization of those skilled in the art, and should be considered when the combination of technical solutions is contradictory or impossible to implement. The combination of the schemes does not exist and is not within the scope of protection required by the present invention.

以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。The above description is only a preferred embodiment of the present invention, and thus does not limit the scope of the invention, and the equivalent structural transformations made by the description of the present invention and the contents of the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims

一种螺旋卷式反渗透膜元件，其特征在于，包括： A spiral wound reverse osmosis membrane element characterized by comprising:

多个反渗透膜片组，每一个所述反渗透膜片组包括反渗透膜片、进水导流网以及纯水导流网，所述进水导流网和所述纯水导流网分别设置在所述反渗透膜片的正反两面；a plurality of reverse osmosis membrane groups, each of said reverse osmosis membrane groups comprising a reverse osmosis membrane, an influent diversion network, and a pure water diversion network, said influent diversion network and said pure water diversion network Separately disposed on the front and back sides of the reverse osmosis membrane;

中心管组，所述中心管组包括纯水管以及多个相互间隔设置的废水管，多个所述废水管环绕所述纯水管排布； a central pipe group comprising a pure water pipe and a plurality of waste water pipes arranged at intervals; the plurality of waste water pipes are arranged around the pure water pipe;

其中，每一个所述反渗透膜片组均具有位于所述中心管组内部的第一部分和位于所述中心管组外部的第二部分，每一所述废水管和所述纯水管被一个所述反渗透膜片组的第一部分隔开；多个所述反渗透膜片组的第二部分形成围绕在所述中心管组的周围的多层薄膜组件；Wherein each of said reverse osmosis membrane groups has a first portion located inside said central tube group and a second portion located outside said central tube group, each of said waste water tube and said pure water tube being one a first portion of the reverse osmosis membrane group is separated; a plurality of the second portion of the reverse osmosis membrane group forming a multilayer film assembly surrounding the central tube group;

其中，每一个所述反渗透膜片组的进水导流网不与所述纯水管和其他的所述反渗透膜片组的反渗透膜片的反面接触；Wherein, the inlet water guiding net of each of the reverse osmosis membrane groups is not in contact with the reverse surface of the pure water pipe and the other reverse osmosis membrane of the reverse osmosis membrane group;

每一个所述反渗透膜片组的纯水导流网不与所述废水管和其他的所述反渗透膜片组的反渗透膜片的正面接触。The pure water deflector of each of the reverse osmosis membrane groups is not in contact with the front side of the waste pipe and other reverse osmosis membranes of the reverse osmosis membrane group.
如权利要求1所述的螺旋卷式反渗透膜元件，其特征在于，每一个所述反渗透膜片组的反渗透膜片正面向内对折设置，多个所述反渗透膜片组的第二部分叠合并共同沿周向缠绕所述中心管组；同一所述反渗透膜片正面夹层之间形成进水流道；相邻两个所述反渗透膜片的反面夹层之间形成产水流道；所述进水导流网和所述废水管位于进水流道中，所述纯水导流网位于产水流道中。The spiral wound reverse osmosis membrane element according to claim 1, wherein each of said reverse osmosis membrane sheets has a reverse osmosis membrane sheet folded inwardly inwardly, and said plurality of said reverse osmosis membrane group The two partial stacks are combined to circumferentially wind the central tube group; an inflow channel is formed between the front interlayer of the reverse osmosis membrane; and a water producing channel is formed between the opposite sandwich layers of the two adjacent reverse osmosis membranes The influent diversion network and the waste water pipe are located in the influent flow channel, and the pure water diversion net is located in the product water flow channel.
如权利要求2所述的螺旋卷式反渗透膜元件，其特征在于，所述产水流道除靠近所述纯水管的侧边以外的其他侧边均闭合密封，以使得所述产水流道仅具有朝向所述纯水管的纯水出口。A spiral wound reverse osmosis membrane element according to claim 2, wherein said water producing flow passage is closedly sealed except for the side edges adjacent to the side of said pure water pipe, so that said water producing flow path There is only a pure water outlet towards the pure water pipe.
如权利要求1所述的螺旋卷式反渗透膜元件，其特征在于，所述纯水管的周壁上开设有连通所述纯水管的内部通道的纯水入水孔；The spiral wound reverse osmosis membrane element according to claim 1, wherein a peripheral wall of the pure water pipe is provided with a pure water inlet hole communicating with an internal passage of the pure water pipe;

每一所述废水管的周壁上开设有连通所述废水管的内部通道的废水入水孔。A wastewater inlet hole communicating with an internal passage of the waste pipe is disposed on a peripheral wall of each of the waste water pipes.
如权利要求4所述的螺旋卷式反渗透膜元件，其特征在于，所述废水管的数量为两个；The spiral wound reverse osmosis membrane element according to claim 4, wherein the number of the waste water pipes is two;

所述纯水管为扁管，以使得所述纯水管具有两个侧表面，每一所述侧表面上均设有所述纯水入水孔；The pure water pipe is a flat pipe such that the pure water pipe has two side surfaces, and each of the side surfaces is provided with the pure water inlet hole;

每一个所述废水管对应一个所述侧表面的位置设置。Each of the waste pipes is disposed corresponding to a position of one of the side surfaces.
如权利要求5所述的螺旋卷式反渗透膜元件，其特征在于，每一所述侧表面上均间隔设有多个所述纯水入水孔，且多个所述纯水入水孔沿所述纯水管的长度方向排布；和/或，The spiral wound reverse osmosis membrane element according to claim 5, wherein each of said side surfaces is spaced apart from said plurality of said pure water inlet holes, and said plurality of said pure water inlet holes are provided Arranging the length of the pure water pipe; and/or,

每一所述废水管上均间隔设有多个所述废水入水孔，且多个所述废水入水孔沿所述废水管的长度方向排布。A plurality of the waste water inlet holes are disposed on each of the waste water pipes, and a plurality of the waste water inlet holes are arranged along a length direction of the waste water pipe.
如权利要求4所述的螺旋卷式反渗透膜元件，其特征在于，所述废水管的数量为N个，N大于或等于3；The spiral wound reverse osmosis membrane element according to claim 4, wherein the number of the waste water pipes is N, and N is greater than or equal to 3;

所述纯水管的横截面呈N边形设置，并对应具有N个侧表面，每一所述侧表面上均设有所述纯水入水孔；The cross section of the pure water pipe is N-shaped and correspondingly has N side surfaces, and each of the side surfaces is provided with the pure water inlet hole;

每一个所述废水管对应一个所述侧表面的位置设置。Each of the waste pipes is disposed corresponding to a position of one of the side surfaces.
如权利要求7所述的螺旋卷式反渗透膜元件，其特征在于，每一所述侧表面上均间隔设有多个所述纯水入水孔，且多个所述纯水入水孔沿所述纯水管的长度方向排布；和/或，The spiral wound reverse osmosis membrane element according to claim 7, wherein each of said side surfaces is spaced apart from said plurality of said pure water inlet holes, and said plurality of said pure water inlet holes are provided Arranging the length of the pure water pipe; and/or,

每一所述废水管上均间隔设有多个所述废水入水孔，且多个所述废水入水孔沿所述废水管的长度方向排布。A plurality of the waste water inlet holes are disposed on each of the waste water pipes, and a plurality of the waste water inlet holes are arranged along a length direction of the waste water pipe.
如权利要求4所述的螺旋卷式反渗透膜元件，其特征在于，The spiral wound reverse osmosis membrane element according to claim 4, wherein

所述纯水管的横截面呈圆形设置，所述纯水管的周壁沿其周向对应多个所述废水管划分为多个弧面段，每一所述弧面段上均设有所述纯水入水孔；The cross section of the pure water pipe is circularly disposed, and the peripheral wall of the pure water pipe is divided into a plurality of arc surface segments corresponding to the plurality of the waste water pipes in a circumferential direction thereof, and each of the arc surface segments is provided The pure water is introduced into the water hole;

每一所述废水管对应一个所述弧面段的位置设置。Each of the waste water pipes is disposed corresponding to a position of one of the arcuate segments.
如权利要求9所述的螺旋卷式反渗透膜元件，其特征在于，每一所述弧面段上均间隔设有多个所述纯水入水孔，且多个所述纯水入水孔沿所述纯水管的长度方向排布；和/或，The spiral wound reverse osmosis membrane element according to claim 9, wherein each of said curved surface sections is provided with a plurality of said pure water inlet holes, and said plurality of pure water inlet holes are spaced apart The length of the pure water pipe is arranged; and/or,

每一所述废水管上均间隔设有多个废水入水孔，且多个所述废水入水孔沿所述废水管的长度方向排布。A plurality of waste water inlet holes are disposed on each of the waste water pipes, and a plurality of the waste water inlet holes are arranged along a length direction of the waste water pipe.
如权利要求4所述的螺旋卷式反渗透膜元件，其特征在于，所述废水管的周壁上开设有废水导流槽，所述废水入水孔设于所述废水导流槽内。The spiral wound reverse osmosis membrane element according to claim 4, wherein a waste water guiding groove is formed in a peripheral wall of the waste water pipe, and the wastewater inlet water hole is provided in the waste water guiding groove.
如权利要求4所述的螺旋卷式反渗透膜元件，其特征在于，所述纯水管的周壁上开设有沿所述纯水管长度方向延伸的第一让位开口。The spiral wound reverse osmosis membrane element according to claim 4, wherein a peripheral wall of the pure water pipe is provided with a first letting opening extending in a longitudinal direction of the pure water pipe.
如权利要求12所述的螺旋卷式反渗透膜元件，其特征在于，所述第一让位开口内设有第一加强筋，所述第一加强筋的两端分别连接所述第一让位开口的不同的两条边。The spiral wound reverse osmosis membrane element according to claim 12, wherein a first reinforcing rib is disposed in the first retaining opening, and two ends of the first reinforcing rib are respectively connected to the first letting The different two sides of the opening.
如权利要求4所述的螺旋卷式反渗透膜元件，其特征在于，所述废水管的周壁上开设有沿所述废水管长度方向延伸的第二让位开口。The spiral wound reverse osmosis membrane element according to claim 4, wherein a peripheral wall of the waste water pipe is provided with a second yielding opening extending in a longitudinal direction of the waste water pipe.
如权利要求14所述的螺旋卷式反渗透膜元件，其特征在于，所述第二让位开口内设有第二加强筋，所述第二加强筋的两端分别连接所述第二让位开口的不同的两条边。The spiral wound reverse osmosis membrane element according to claim 14, wherein a second reinforcing rib is disposed in the second retaining opening, and two ends of the second reinforcing rib are respectively connected to the second letting The different two sides of the opening.
如权利要求1所述的螺旋卷式反渗透膜元件，其特征在于，The spiral wound reverse osmosis membrane element according to claim 1, wherein

所述纯水管的一端口被封堵，以使得纯水向所述纯水管的另一端口流动；和/或，One port of the pure water pipe is blocked to allow pure water to flow to another port of the pure water pipe; and/or,

至少一个所述废水管的一端口被封堵，以使得废水向所述废水管的另一端口流动。A port of at least one of the waste water pipes is blocked to allow waste water to flow to another port of the waste water pipe.
一种如权利要求1所述的螺旋卷式反渗透膜元件的卷膜方法，其特征在于，包括如下步骤：A film winding method for a spiral wound reverse osmosis membrane element according to claim 1, comprising the steps of:

步骤S1，将多个所述反渗透膜片组的第一部分伸入所述中心管组内，使得每一所述废水管和所述纯水管被一个所述反渗透膜片组的第一部分隔开；Step S1, extending a first portion of the plurality of the reverse osmosis membrane groups into the central tube group such that each of the waste water tubes and the pure water tubes are subjected to a first portion of the reverse osmosis membrane group Separate

步骤S2，将多个所述反渗透膜片组的第二部分围绕在所述中心管组的周围。In step S2, a second portion of the plurality of the reverse osmosis membrane groups is surrounded around the central tube group.
如权利要求17所述的螺旋卷式反渗透膜元件的卷膜方法，其特征在于， A film winding method for a spiral wound reverse osmosis membrane element according to claim 17, wherein

所述步骤S1具体包括：The step S1 specifically includes:

S11，将一所述反渗透膜片自前向后绕过一所述废水管后，再向前折叠而缠绕在所述废水管上，以使所述反渗透膜片的正面相对形成夹层，并将一所述进水导流网置于所述夹层内，制得一个第一组件；重复前述操作，制得多个所述第一组件；S11, a reverse osmosis membrane is wound from the front to the back through a waste pipe, and then folded forward and wound on the waste pipe so that the front surface of the reverse osmosis membrane is oppositely formed, and Disposing a water inflow guiding net in the interlayer to prepare a first component; repeating the foregoing operation to obtain a plurality of the first components;

S12，将所述纯水管安装到卷膜机上，将一置于所述纯水管前方的所述纯水导流网固定在所述纯水管上；S12, the pure water pipe is installed on the film rolling machine, and the pure water guiding net placed in front of the pure water pipe is fixed on the pure water pipe;

S13，将一所述第一组件安装到所述纯水管上，使该第一组件的废水管置于所述纯水管的前方，使该第一组件的反渗透膜片和进水导流网叠置于前一个所述纯水导流网上；S13, installing a first component to the pure water pipe, placing a waste pipe of the first component in front of the pure water pipe, and making a reverse osmosis membrane and a water inlet guide of the first component The flow net is stacked on the previous pure water diversion network;

S14，在将当前安装到所述纯水管上的所述第一组件的上表面的前端边沿和左右两端边沿上打胶后，粘合一片所述纯水导流网；S14, after the front end edge and the left and right end edges of the upper surface of the first component currently mounted on the pure water pipe are glued, a piece of the pure water flow guiding net is bonded;

S15，启动所述卷膜机，所述卷膜机带动所述纯水管以及安装于所述纯水管上的所述第一组件转动预设角度，以使当前安装到所述纯水管上的所述第一组件将前一个所述纯水导流网压于下方并转动至所述纯水管的后方；S15, starting the film rolling machine, the film rolling machine driving the pure water pipe and the first component mounted on the pure water pipe to rotate a preset angle to enable current installation to the pure water pipe The first component above presses the former pure water guiding network below and rotates to the rear of the pure water pipe;

S16，将另一所述第一组件安装到所述纯水管上，使该第一组件的废水管置于所述纯水管的前方，使该第一组件的反渗透膜片和进水导流网叠置于前一个所述第一组件的纯水导流网上；S16, installing another one of the first components on the pure water pipe, placing a waste pipe of the first component in front of the pure water pipe, and making a reverse osmosis membrane and water inlet of the first component The flow guiding net is stacked on the pure water guiding network of the first one of the first components;

重复步骤S14至S16，直至多个所述第一组件均安装到位，转入步骤S17；Repeat steps S14 to S16 until a plurality of the first components are installed in place, and proceeds to step S17;

S17，在最后一个所述第一组件的上表面的前端边沿和左右两侧边沿上打胶后，与所述步骤S12中固定在所述纯水管上的纯水导流网相互粘合。S17, after the front end edge and the left and right side edges of the upper surface of the last one of the first components are glued, and adhered to the pure water flow guiding net fixed on the pure water pipe in the step S12.
如权利要求18所述的螺旋卷式反渗透膜元件的卷膜方法，其特征在于，所述步骤S2具体包括：The method of winding a spiral-type reverse osmosis membrane element according to claim 18, wherein the step S2 comprises:

S21，将多个所述反渗透膜片组的第二部分叠合后，启动所述卷膜机，带动所述纯水管以及安装于所述纯水管上的所述第一组件按照所述步骤S15的中的转动方向转动，直至多个所述反渗透膜片组的第二部分全部卷绕到所述中心管组上。S21, after laminating a plurality of the second portions of the reverse osmosis membrane group, starting the winder, driving the pure water pipe and the first component mounted on the pure water pipe according to The rotation direction in step S15 is rotated until the second portions of the plurality of the reverse osmosis membrane groups are all wound onto the center tube group.
一种反渗透***，其特征在于，包括如权利要求1所述的螺旋卷式反渗透膜元件。A reverse osmosis water purifier comprising the spiral wound reverse osmosis membrane element according to claim 1.