CN101785972B - Water treatment system with bidirectional cleaning function - Google Patents
Water treatment system with bidirectional cleaning function Download PDFInfo
- Publication number
- CN101785972B CN101785972B CN2009100677783A CN200910067778A CN101785972B CN 101785972 B CN101785972 B CN 101785972B CN 2009100677783 A CN2009100677783 A CN 2009100677783A CN 200910067778 A CN200910067778 A CN 200910067778A CN 101785972 B CN101785972 B CN 101785972B
- Authority
- CN
- China
- Prior art keywords
- control valve
- membrane
- cleaning
- water
- filtrate collection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 238000004140 cleaning Methods 0.000 title claims abstract description 68
- 230000002457 bidirectional effect Effects 0.000 title description 4
- 239000012528 membrane Substances 0.000 claims abstract description 94
- 239000000706 filtrate Substances 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 230000004907 flux Effects 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000011001 backwashing Methods 0.000 description 9
- 239000000835 fiber Substances 0.000 description 9
- 239000012510 hollow fiber Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 230000005484 gravity Effects 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000009285 membrane fouling Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本发明公开了一种具有双向清洗功能的水处理系统，旨在提供一种可实现双向交替清洗的水处理系统。双端出水外压膜组件的上端出水口与上端过滤液收集管道连接，下端出水口与下端过滤液收集管道连接，上端过滤液收集管道与第一控制阀和第二控制阀连接，下端过滤液收集管道与第三控制阀和第四控制阀连接，第一控制阀与第三控制阀并联后与第五控制阀、水泵、第七控制阀依次连接，第八控制阀一端与水泵的第二接口连接，另一端与第五控制阀并联，第六控制阀一端与水泵的第一接口连接，另一端与第七控制阀并联；第二控制阀与第四控制阀并联后与剩余清洗液出口连接。该系统能实现双向交替清洗，提高对膜内腔污染物的冲洗效果，保证膜清洗效率和通量恢复率。
The invention discloses a water treatment system with two-way cleaning function, aiming at providing a water treatment system capable of realizing two-way alternate cleaning. The upper water outlet of the double-end water outlet external pressure membrane module is connected to the upper filtrate collection pipe, the lower water outlet is connected to the lower filtrate collection pipe, the upper filtrate collection pipe is connected to the first control valve and the second control valve, and the lower filtrate collection pipe is connected to the upper filtrate collection pipe. The collection pipe is connected with the third control valve and the fourth control valve, the first control valve is connected with the third control valve in parallel and connected with the fifth control valve, the water pump, and the seventh control valve in sequence, and one end of the eighth control valve is connected with the second control valve of the water pump. The other end is connected to the fifth control valve in parallel, one end of the sixth control valve is connected to the first port of the water pump, and the other end is connected in parallel to the seventh control valve; the second control valve is connected in parallel to the fourth control valve and connected to the remaining cleaning liquid outlet connect. The system can realize two-way alternate cleaning, improve the cleaning effect on the pollutants in the membrane cavity, and ensure the cleaning efficiency and flux recovery rate of the membrane.
Description
技术领域technical field
本发明涉及水处理技术领域，更具体的说，是涉及一种利用中空纤维膜进行水处理的具有双向清洗功能的水处理系统。The invention relates to the technical field of water treatment, and more specifically relates to a water treatment system with bidirectional cleaning function which utilizes hollow fiber membranes for water treatment.
背景技术Background technique
中空纤维膜组件以其填充密度高、可自支撑、结构简单、造价低、可反洗等特点在水处理领域中有着最为广泛的应用。中空纤维膜组件可应用在超纯水的制备、饮用水净化、污水处理以及海水淡化等诸多领域。根据中空纤维膜组件的结构特点，可包括中空纤维单端出水(即膜纤维一端封闭，一端作为过滤液的汇集通道)和双端出水(即两端均作为过滤液的汇集通道)两种形式。由于在同等过膜推动力的作用下双端出水的形式比单端出水膜组件出水效率更高，因此双端出水的中空纤维膜组件的形式应用更为普遍。Hollow fiber membrane modules are widely used in the field of water treatment due to their high packing density, self-supporting, simple structure, low cost, and backwashing. Hollow fiber membrane modules can be used in many fields such as ultrapure water preparation, drinking water purification, sewage treatment, and seawater desalination. According to the structural characteristics of the hollow fiber membrane module, it can include two forms of hollow fiber single-end water outlet (that is, one end of the membrane fiber is closed, and one end is used as a collection channel for the filtrate) and double-end water outlet (that is, both ends are used as a collection channel for the filtrate) . Due to the fact that the form of double-end water outlet is more efficient than the single-end water outlet membrane module under the same membrane-passing driving force, the form of double-end water outlet hollow fiber membrane module is more common.
膜污染是膜过滤过程中需要解决的关键问题，一般采用膜清洗方法。对于外压膜组件，其一般思路是采用过滤液(指经过膜过滤后的水)或加入化学药剂后的过滤液对膜实施反向清洗，即在泵(或重力作用下)使清洗液由中空膜纤维内腔反向流至膜的外部，从而使附着在膜外表面的污染物剥落，膜通量恢复。Membrane fouling is a key problem that needs to be solved in the membrane filtration process, and membrane cleaning methods are generally used. For external pressure membrane modules, the general idea is to use the filtrate (referring to the water filtered by the membrane) or the filtrate after adding chemicals to perform reverse cleaning on the membrane, that is, the cleaning liquid is pumped (or under the action of gravity) The inner cavity of the hollow membrane fiber reverses to the outside of the membrane, so that the pollutants attached to the outer surface of the membrane are peeled off and the membrane flux is restored.
双端出水的外压膜组件在进行反洗时通常仍采用出水管路，过滤液出口即清洗液入口，因此在清洗时存在一定的弊端。大规模工程中反洗液通常取自膜产水，长期贮存产水的水箱或水池微生物滋生并易受到外部的污染，如不及时清除会使产水中混入微生物残骸或颗粒物，这对膜反清洗产生影响。中空膜纤维的内腔直径较小(＜2mm)，进入膜纤维内腔的清洗液夹带的细小颗粒物质极易堵塞狭小的膜纤维内腔，造成膜清洗不畅。双端出水的中空纤维膜组件在反洗时，清洗液自纤维的两端进入内腔，绝大部分清洗液会在压力的作用下透过膜而转移至膜的外部，少部分则会存留在膜内腔。由于双端出水膜组件反清洗时两端的流向是相对的，因此反洗液中夹带的颗粒物不能从膜面透过且无法排出膜内腔，较大的颗粒物会滞留在膜内腔中堵塞流道，而颗粒稍小的物质则会附着于内表面或堵塞膜孔，形成膜内腔污染。由于目前采用的中空纤维膜材料多属不对称膜，而膜有效层又多在膜外侧表面，因此各种膜清洗手段对这种“外小内大”的膜孔分布形式的膜内腔污染很难恢复。The external pressure membrane module with double-ended water outlet usually still uses the water outlet pipeline during backwashing, and the outlet of the filtrate is the inlet of the cleaning solution, so there are certain disadvantages in cleaning. In large-scale projects, the backwash liquid is usually taken from the water produced by the membrane. The water tank or pool that stores the produced water for a long time is prone to microbial growth and is easily polluted by the outside. make an impact. The diameter of the inner cavity of the hollow membrane fiber is small (<2mm), and the fine particles entrained by the cleaning solution entering the inner cavity of the membrane fiber can easily block the narrow inner cavity of the membrane fiber, resulting in poor cleaning of the membrane. When backwashing the hollow fiber membrane module with double-ended water outlet, the cleaning liquid enters the inner cavity from both ends of the fiber, most of the cleaning liquid will pass through the membrane under the action of pressure and transfer to the outside of the membrane, and a small part will remain in the lumen of the membrane. Since the flow directions at both ends of the double-ended water outlet membrane module are opposite during backwashing, the particles entrained in the backwash solution cannot pass through the membrane surface and cannot be discharged from the membrane cavity, and larger particles will stay in the membrane cavity to block the flow. However, substances with slightly smaller particles will adhere to the inner surface or block the membrane pores, forming membrane cavity contamination. Since most of the hollow fiber membrane materials currently used are asymmetric membranes, and the effective layer of the membrane is mostly on the outer surface of the membrane, various membrane cleaning methods will pollute the inner cavity of the membrane with this "small outside and large inside" membrane pore distribution form. It's hard to recover.
发明内容Contents of the invention
本发明的目的是为了克服现有技术的不足之处，提供一种可实现双向交替清洗的水处理系统，克服现有的清洗技术易造成膜纤维内腔及内壁膜孔堵塞而较难清洗的弊端，减少细小颗粒物阻塞膜内腔流道的可能性，并使滞留于膜内腔的颗粒物能及时排出，提高膜清洗对膜内腔污染物的冲洗效果，保证膜清洗的效率和通量恢复率。The purpose of the present invention is to overcome the deficiencies of the prior art, provide a water treatment system that can realize bidirectional alternate cleaning, and overcome the existing cleaning technology that easily causes the inner cavity of the membrane fiber and the membrane hole on the inner wall to be blocked and is difficult to clean. Disadvantages, reduce the possibility of fine particles blocking the flow channel of the membrane cavity, and enable the particles trapped in the membrane cavity to be discharged in time, improve the cleaning effect of the membrane cleaning on the pollutants in the membrane cavity, and ensure the efficiency and flux recovery of the membrane cleaning Rate.
本发明通过下述技术方案实现：The present invention realizes through following technical scheme:
一种具有双向清洗功能的水处理系统，包括多组双端出水外压膜组件，每组双端出水外压膜组件的上端出水口分别与上端过滤液收集管道连接，下端出水口分别与下端过滤液收集管道连接，其特征在于，所述上端过滤液收集管道分别与第一控制阀和第二控制阀连接，所述下端过滤液收集管道分别与第三控制阀和第四控制阀连接，所述第一控制阀与第三控制阀并联后与第五控制阀、水泵、第七控制阀依次连接，所述第七控制阀与过滤液出口即清洗液入口连接，第八控制阀一端与水泵的第二接口连接，另一端与第五控制阀并联，第六控制阀一端与水泵的第一接口连接，另一端与第七控制阀并联；所述第二控制阀与第四控制阀并联后与剩余清洗液出口连接。A water treatment system with two-way cleaning function, including multiple sets of double-end water outlet external pressure membrane modules, the upper end water outlets of each double-end water outlet outer pressure membrane module are respectively connected to the upper end of the filtrate collection pipe, and the lower end water outlets are respectively connected to the lower end Filtrate collection pipeline connection, characterized in that the upper end filtrate collection pipeline is respectively connected with the first control valve and the second control valve, and the lower end filtrate collection pipeline is respectively connected with the third control valve and the fourth control valve, The first control valve and the third control valve are connected in parallel to the fifth control valve, the water pump, and the seventh control valve in sequence; The second port of the water pump is connected, the other end is connected in parallel with the fifth control valve, one end of the sixth control valve is connected with the first port of the water pump, and the other end is connected in parallel with the seventh control valve; the second control valve is connected in parallel with the fourth control valve Finally, connect with the remaining cleaning fluid outlet.
所述双端出水外压膜组件为双端出水的外压帘式膜组件或柱式膜组件。The double-end water outlet external pressure membrane module is an external pressure curtain membrane module or a column membrane module with double-end water outlet.
本发明具有下述技术效果：The present invention has following technical effect:
本发明的具有双向清洗功能的水处理系统可以通过对各个控制阀的组合控制，实现双向交替清洗，从而克服了现有的清洗技术易造成膜纤维内腔及内壁膜孔堵塞而较难清洗的弊端，能够减少细小颗粒物阻塞膜内腔流道的可能性，并使滞留于膜内腔的颗粒物能及时排出，提高膜清洗对膜内腔污染物的冲洗效果，保证膜清洗的效率和通量恢复率。而且，可以采用过量清洗的操作方式，即采用过量的清洗液，一部分清洗液可从膜内腔透过膜至膜外部，另一部分经由剩余清洗液排放口排出，可使膜内腔中保持较高的流体速度，能够使内腔中的颗粒物及时有效的排出，从而保障对膜内腔的冲刷效果。The water treatment system with two-way cleaning function of the present invention can realize two-way alternate cleaning through the combination control of each control valve, thereby overcoming the existing cleaning technology that easily causes the inner cavity of the membrane fiber and the membrane hole on the inner wall to be blocked and is difficult to clean. Disadvantages, can reduce the possibility of fine particles blocking the flow channel of the membrane cavity, and make the particles trapped in the membrane cavity be discharged in time, improve the effect of membrane cleaning on the pollutants in the membrane cavity, and ensure the efficiency and flux of membrane cleaning recovery rate. Moreover, the operation mode of excessive cleaning can be adopted, that is, using excessive cleaning liquid, a part of the cleaning liquid can pass through the membrane from the inner cavity of the membrane to the outside of the membrane, and the other part can be discharged through the discharge port of the remaining cleaning liquid, so that the inner cavity of the membrane can be kept relatively clean. The high fluid velocity can make the particles in the inner cavity be discharged in time and effectively, so as to ensure the flushing effect on the inner cavity of the membrane.
附图说明Description of drawings
图1为本发明具有双向清洗功能的水处理系统示意图；Fig. 1 is the schematic diagram of the water treatment system with two-way cleaning function of the present invention;
图2为本发明具有双向清洗功能的水处理系统进行水过滤时示意图；Fig. 2 is the schematic diagram when the water treatment system with two-way cleaning function of the present invention carries out water filtration;
图3为本发明具有双向清洗功能的水处理系统从上端进行清洗时示意图；Fig. 3 is the schematic diagram when the water treatment system with two-way cleaning function of the present invention cleans from the upper end;
图4为本发明具有双向清洗功能的水处理系统从下端进行清洗时示意图。Fig. 4 is a schematic diagram of the water treatment system with two-way cleaning function cleaning from the lower end of the present invention.
具体实施方式Detailed ways
以下结合附图和具体实施例对本发明详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
本发明的具有双向清洗功能的水处理系统的示意图如图1所示，包括多组双端出水外压膜组件1，每组双端出水外压膜组件的上端出水口分别与上端过滤液收集管道2连接，下端出水口分别与下端过滤液收集管道13连接，上端过滤液收集管道2分别与第一控制阀4和第二控制阀3连接，下端过滤液收集管道13分别与第三控制阀12和第四控制阀11连接。第一控制阀4与第三控制阀12并联后与第五控制阀6、水泵8、第七控制阀9依次连接，第七控制阀9与过滤液出口即清洗液入口连接。第八控制阀7一端与水泵8的第二接口15连接，另一端与第五控制阀6并联，第六控制阀10一端与水泵8的第一接口14连接，另一端与第七控制阀9并联。所述第二控制阀3与第四控制阀11并联后与剩余清洗液出口5连接。其中，双端出水外压膜组件为双端出水的外压帘式膜组件或柱式膜组件等。各个控制阀可以是自动控制阀，也可以是手动控制阀。The schematic diagram of the water treatment system with two-way cleaning function of the present invention is shown in Figure 1, and comprises multiple groups of double-end water outlet external
通过各个控制阀的组合可以控制本发明具有双向清洗功能的水处理系统的工作模式，可以通过水泵或重力提供出水动力。过滤液收集管道在反清洗时可充当反清洗管道，并通过水泵或重力提供反洗推动力。The working mode of the water treatment system with two-way cleaning function of the present invention can be controlled through the combination of various control valves, and water output power can be provided by a water pump or gravity. The filtrate collection pipeline can act as a backwashing pipeline during backwashing, and provide backwashing driving force through a water pump or gravity.
图2为本发明的具有双向清洗功能水处理系统进行水过滤时的示意图，第一控制阀4、第三控制阀12、第五控制阀6、第七控制阀9开启，第二控制阀3、第四控制阀11、第六控制阀10、第八控制阀7关闭。双端出水外压膜组件1在水泵8产生的抽吸作用下对过滤液进行过滤。待处理的废水或污水经过多个膜组件过滤后分别从上端出水口进入上端过滤液收集管道2，从下端出水口进入下端过滤液收集管道13，过滤液通过上端过滤液收集管道上的第一控制阀4和下端过滤液收集管道上的第三控制阀12汇集后，经过第五控制阀6、水泵8、第七控制阀9后，从过滤液出口进入过滤液汇集总管集中收集。Fig. 2 is the schematic diagram when the water treatment system with two-way cleaning function of the present invention carries out water filtration, the
膜受到污染后，过膜压力升高，实施反清洗。反清洗时采用双向交替清洗的方式。After the membrane is polluted, the pressure across the membrane increases and backwashing is performed. When backwashing, the two-way alternate cleaning method is adopted.
在第一种模式下，清洗液从上端过滤液收集管道进入膜组件内腔。图3为本发明的具有双向清洗功能水处理系统从上端进行清洗时的示意图，第一控制阀4、第四控制阀11、第六控制阀10、第八控制阀7开启，第二控制阀3、第三控制阀12、第五控制阀6、第七控制阀9关闭。采用过量清洗的操作方式，清洗液自清洗液入口进入，在水泵8或重力的作用下，经由第六控制阀10、水泵8、第八控制阀7、第一控制阀4及上端过滤液收集管道2进入双端出水外压膜组件1内腔，一部分透过膜转移至膜外部，另一部分经由下端过滤液收集管道13及第四控制阀11，最终通过剩余清洗液排出口5排出。In the first mode, the cleaning liquid enters the inner cavity of the membrane module from the filtrate collection pipe at the upper end. Fig. 3 is the schematic diagram when the water treatment system with two-way cleaning function of the present invention is cleaned from the upper end, the
之后，采用清洗液从下端过滤液收集管道进入膜组件内腔的第二种模式，图4为本发明的具有双向清洗功能水处理系统从下端进行清洗时的示意图，此种模式下，第二控制阀3、第三控制阀12、第六控制阀10、第八控制阀7开启，第一控制阀4、第四控制阀11、第五控制阀6、第七控制阀9关闭。采用过量清洗的操作方式，清洗液自清洗液入口进入，在水泵8或重力的作用下，经由第六控制阀10、水泵8、第八控制阀7、第三控制阀12及下端过滤液收集管道13进入膜组件内腔，一部分透过膜转移至膜外部，另一部分经由上端过滤液收集管道2及第二控制阀3，最终通过剩余清洗液排出口5排出。经过上述交替清洗过程，使附着在膜外表面的污染物剥落，膜通量恢复，完成对膜的清洗过程。After that, adopt the second mode in which the cleaning liquid enters the inner cavity of the membrane module from the filtrate collection pipe at the lower end. Fig. 4 is a schematic diagram of the water treatment system with bidirectional cleaning function of the present invention when cleaning from the lower end. In this mode, the second The
以上交替清洗方式可保证清洗液中夹带的颗粒物不会堵塞膜纤维内腔，同时由于采用过量清洗方式，可使膜内腔中保持较高的流体速度，能够使内腔中的颗粒物及时有效的排出。The above alternate cleaning method can ensure that the particles entrained in the cleaning liquid will not block the inner cavity of the membrane fiber. At the same time, due to the excessive cleaning method, the fluid velocity in the inner cavity of the membrane can be maintained at a high level, and the particles in the inner cavity can be cleaned up in a timely and effective manner. discharge.
本发明的技术方案可应用于目前常用的帘式、柱式及其它形式的双端出水的外压中空纤维膜组件组成的水处理系统，同时根据实际需要规模的大小可由数个甚至数十个膜组件组成。The technical scheme of the present invention can be applied to the water treatment system composed of curtain type, column type and other forms of double-end water outlet external pressure hollow fiber membrane modules, and the scale can be several or even dozens according to the actual needs. Membrane components.
尽管参照实施例对所公开的涉及一种具有双向清洗功能的水处理系统进行了特别描述，以上描述的实施例是说明性的而不是限制性的，在不脱离本发明的精神和范围的情况下，所有的变化和修改都在本发明的范围之内。Although the disclosed water treatment system with two-way cleaning function has been specifically described with reference to the embodiments, the above-described embodiments are illustrative and not restrictive, without departing from the spirit and scope of the present invention Below, all changes and modifications are within the scope of the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100677783A CN101785972B (en) | 2009-01-23 | 2009-01-23 | Water treatment system with bidirectional cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100677783A CN101785972B (en) | 2009-01-23 | 2009-01-23 | Water treatment system with bidirectional cleaning function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101785972A CN101785972A (en) | 2010-07-28 |
| CN101785972B true CN101785972B (en) | 2011-10-26 |
Family
ID=42529434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100677783A Active CN101785972B (en) | 2009-01-23 | 2009-01-23 | Water treatment system with bidirectional cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101785972B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101508763B1 (en) | 2012-12-29 | 2015-04-07 | 제일모직주식회사 | Hollow fiber membrane module using positive pressure and back washing method using the same |
| CN103223297B (en) * | 2013-04-28 | 2015-06-10 | 杭州水处理技术研究开发中心有限公司 | Ultrafiltration membrane integration device with double ends for water production and module |
| CN104174293A (en) * | 2014-08-27 | 2014-12-03 | 南京万德斯环保科技有限公司 | Device for relieving or preventing blockage of external tubular ultra-filtration membrane |
| CN105879692A (en) * | 2016-04-28 | 2016-08-24 | 佘宏栓 | Turbulence-method vertical offline reverse osmosis membrane cleaning system and method |
| CN108640312A (en) * | 2018-05-24 | 2018-10-12 | 姚安迪 | A kind of efficient domestic sewage processing unit |
| CN116407953A (en) * | 2023-02-01 | 2023-07-11 | 浙江汇甬新材料有限公司 | A method for in-situ regeneration of molecular sieve membrane tubes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2369752Y (en) * | 1998-12-08 | 2000-03-22 | 天津纺织工学院膜天膜技术工程公司 | Film separator capable of efficiently cleaning |
| CN1311055A (en) * | 2001-02-23 | 2001-09-05 | 天津膜天膜工程技术有限公司 | Two-way working film separation method and equipment therefor |
| CN1480247A (en) * | 2002-09-06 | 2004-03-10 | 天津膜天膜工程技术有限公司 | Membrane separation device composed of multiple groups of membrane module and its operating method |
| CN201357054Y (en) * | 2009-01-23 | 2009-12-09 | 天津膜天膜科技有限公司 | Membrane module operating device with bidirectional washing function |
-
2009
- 2009-01-23 CN CN2009100677783A patent/CN101785972B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2369752Y (en) * | 1998-12-08 | 2000-03-22 | 天津纺织工学院膜天膜技术工程公司 | Film separator capable of efficiently cleaning |
| CN1311055A (en) * | 2001-02-23 | 2001-09-05 | 天津膜天膜工程技术有限公司 | Two-way working film separation method and equipment therefor |
| CN1480247A (en) * | 2002-09-06 | 2004-03-10 | 天津膜天膜工程技术有限公司 | Membrane separation device composed of multiple groups of membrane module and its operating method |
| CN201357054Y (en) * | 2009-01-23 | 2009-12-09 | 天津膜天膜科技有限公司 | Membrane module operating device with bidirectional washing function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101785972A (en) | 2010-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105478016B (en) | A kind of automatic backwash scraping tubular membrane filter device | |
| CN101785972B (en) | Water treatment system with bidirectional cleaning function | |
| CN201357054Y (en) | Membrane module operating device with bidirectional washing function | |
| CN201284277Y (en) | Small-sized water purifying appliance | |
| CN110790344A (en) | Novel drinking water advanced treatment and purification device and method | |
| CN206580601U (en) | A kind of Unpowered gravity stream super-filter purifying device | |
| CN203750426U (en) | Device applicable to pulse type washing membrane filtration assembly | |
| CN205269420U (en) | Automatic back flush scraping tubular membrane filter equipment | |
| CN105060407B (en) | A kind of filter membrane filter-core back-flushing cleaning device and back-flushing method | |
| CN206886868U (en) | Desalting water treatment device for surface water | |
| CN203319746U (en) | Self-cleaning membrane treatment device for water treatment | |
| CN107686210A (en) | The purging method of water treatment system and the water treatment system | |
| CN203112611U (en) | Sewage treatment device combining floc film with hollow fibrous film | |
| CN107265568A (en) | A kind of circulating filtration sewage water treatment method capable of washing | |
| CN110745910A (en) | A kind of honeycomb ceramic membrane filtering method and filtering device | |
| CN216638988U (en) | Shale gas wastewater treatment and membrane cleaning plant | |
| CN207119193U (en) | Filter element filtering device for strong brine wastewater | |
| CN201380045Y (en) | Mine water desalination pretreatment device and reverse osmosis desalination equipment | |
| CN205419859U (en) | Sand filtration backwash pretreatment of water system | |
| CN211612279U (en) | Membrane separation device with cleaning function | |
| CN204952681U (en) | Improved generation rubbish is washed and is swept automobile -used membrane separation device | |
| CN201598212U (en) | A direct drinking water purification device | |
| KR100760969B1 (en) | Apparatus for treating rainfall and method of treating the rainfall | |
| CN202700376U (en) | Reverse osmosis membrane on-line self-cleaning system | |
| CN206828218U (en) | A kind of water process shuts down back purge system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20250112 Address after: Room 202, Building B, No. 60 Eleventh Street, Binhai New Area Economic and Technological Development Zone, Tianjin, China 300457 Patentee after: Tianjin Hymenon Membrane Material Technology Co.,Ltd. Country or region after: China Address before: 300457 No. eleventh, 60 Avenue, Tianjin economic and Technological Development Zone Patentee before: Tianjin Motimo Membrane Technology Co.,Ltd. Country or region before: China |