CN101829504A - Back-washable flat membrane element - Google Patents
Back-washable flat membrane element Download PDFInfo
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- CN101829504A CN101829504A CN 201010183735 CN201010183735A CN101829504A CN 101829504 A CN101829504 A CN 101829504A CN 201010183735 CN201010183735 CN 201010183735 CN 201010183735 A CN201010183735 A CN 201010183735A CN 101829504 A CN101829504 A CN 101829504A
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Abstract
The invention discloses a back-washable flat membrane element, belonging to the field of flat membrane element, which is characterized in that the flat membrane element is formed by superposing a first backwashing protecting screen, a first flat membrane, a first stream guidance screen, a backing plate, a second stream guidance screen, a second flat membrane and a second backwashing protecting screen in sequence, namely a back-washable flat membrane main body is formed after superposition, and the periphery of the main body is sealed by a U-shaped seal groove, wherein, the upper and lower sides of the U-shaped seal groove are respectively provided with a stream guidance groove, an opening and a fixed ring. The back-washable flat membrane element of the invention has convenient operation and simple structure, realizes on-line cleaning, leads a membrane bioreactor to operate continuously, and is especially suitable for water processing fields, such as life, chemical engineering, biological engineering and environmental protection and the like.
Description
Technical field
The invention belongs to membrane separation technique research and development and applied technical field, specifically, the present invention relates to can be at a kind of novel flat membrane component of water treatment field such as life, chemical industry, bioengineering, environmental protection.
Background technology
Membrane bioreactor (Membrane Bioreactor is MBR) is a kind of high-efficiency sewage treatment technology that membrane separation technique and traditional activated sludge method for treating water are efficiently combined.It has substituted the second pond in the traditional sludge technology.Compare with traditional biological sewage treatment technology, have that biochemical efficiency height, stable effluent quality, floor space are little, the blowdown mud cycle long, modular structure make equipment compacter, be easy to characteristics such as control and operational management automatically, have the incomparable clear superiority of many biological treatments, so membrane bioreactor has been widely used in the processing of municipal sewage and industrial wastewater.
Membrane bioreactor is made of a plurality of membrane components, membrane support, aerating pipelines, outlet pipeline.The core technology of membrane bioreactor is a flat membrane component.At present, people often adopt flat sheet membrane to be made into flat membrane component as filtering material.
In the prior art, its structure of flat membrane component is generally by flat sheet membrane 11,12, water conservancy diversion net 21,22, and gripper shoe 3 constitutes, and is superimposed according to order shown in Figure 1, and the stack back forms main body shown among Fig. 8 71.In Fig. 2, the stack left side, back and the right are inserted in respectively in U type groove 41 and 42, stick into one with fluid sealant, and each interlayer in the U type groove all has the fluid sealant bonding; The U type groove 43 of top is different with U type groove 41 and 42 with following U type groove 44: for U type groove 44 and U type groove 43, the inwall of U type groove 44 and U type groove 43 is only bonding with adjacent separately flat sheet membrane, in the U type groove between other each layer all less than boning, and the inboard, U word bottom of U type groove 44 and U type groove 43 is left the space of flowing water respectively.On the following U type groove 44 water in-out port 52 is arranged, on the top U type groove 43 water in-out port 51 is arranged, and the space intercommunication of the bottom flowing water of this mouth and U type groove.Junction between each U type groove equally must be airtight.After the membrane bioreactor that uses above-mentioned membrane component to make moves a period of time, dull and stereotyped rete and flat sheet membrane outer surface at flat membrane component can adhere to many dirts, produce dirty stifled phenomenon, therefore cause filtration resistance to increase, the membrane bioreactor aquifer yield is reduced greatly.Above-mentioned flat membrane component can not carry out backwash, and reason is if carry out backwash: be about to water purification and squeeze into flat membrane component from water in-out port, because the pressure effect, dull and stereotyped rete is risen split and destroy flat membrane component.So, a kind of flat membrane component that carries out online backwash can be provided, be open question in the prior art.
Summary of the invention
The objective of the invention is to overcome shortcoming in the prior art, a kind of back-washable flat membrane component is provided.
Of the present invention it is characterized in that, described back-washable flat membrane component contains flat sheet membrane, water conservancy diversion net, gripper shoe and U type seal groove, it is characterized in that, described back-washable flat membrane component contains flat sheet membrane main body and U type seal groove, wherein:
The flat sheet membrane main body contains: along the length of side direction of the left and right sides; the order first backwash catch net, first flat sheet membrane, the first water conservancy diversion layer, gripper shoe, the second water conservancy diversion net, second flat sheet membrane and the second backwash catch net that superpose and bond together successively; at above-below direction the first backwash catch net and first flat sheet membrane bonding are only arranged then; second flat sheet membrane and second backwash catch net bonding; the aperture of described backwash catch net is greater than the aperture of described flat sheet membrane
U type seal groove comprises left side U type seal groove, right side U type seal groove, top U type seal groove and bottom U type seal groove, wherein:
Left side U type seal groove and right side U type seal groove are clamped described flat sheet membrane main body from the length of side direction of the left and right sides of described flat sheet membrane main body respectively,
Top U type seal groove and bottom U type seal groove clamps described flat sheet membrane main body from the top and bottom of described flat sheet membrane main body respectively and both are sealing adhesive, between the upper end of and described flat sheet membrane main body inboard, respectively leave a guiding gutter between the lower end of and described flat sheet membrane main body inboard in the U word bottom of described bottom U type seal groove in the U word bottom of described top U type seal groove, described up and down two guiding gutters are water in-out port of UNICOM separately
In described four U type seal grooves, two adjacent U type seal grooves are that bonding is airtight mutually.
The present invention moves convenience, simple in structure, has realized on-line cleaning, and membrane bioreactor can be moved continuously.Be specially adapted to water treatment field such as life, chemical industry, bioengineering, environmental protection.
Description of drawings
Fig. 1 is a flat membrane component overlay order schematic diagram of the prior art.
Fig. 2 is the longitudinal profile schematic diagram of flat membrane component of the prior art at the water in-out port place.
Fig. 3 is the schematic diagram after the left and right sides of the present invention U type seal groove is set level.
Fig. 4 is the vertical section schematic diagram after the left and right sides of the present invention U type seal groove is set level.
Fig. 5 is the schematic diagram after both sides U type seal groove is set level about the present invention.
Fig. 6 is the back-washable flat membrane component overlay order schematic diagram of the present invention.
Fig. 7 is the longitudinal profile schematic diagram of the back-washable flat membrane component of the present invention at the water in-out port place.
Fig. 8 is a flat membrane component profile schematic diagram of the prior art.
Fig. 9 is the back-washable flat membrane component profile schematic diagram of the present invention.
The specific embodiment
The present invention proposes back-washable flat membrane component and comprises backwash catch net, flat sheet membrane, water conservancy diversion net, gripper shoe, U type seal groove, water in-out port and retainer ring.Described back-washable flat membrane component is according to the first backwash catch net; first flat sheet membrane; the first water conservancy diversion layer; gripper shoe; the second water conservancy diversion net; second flat sheet membrane; the order stack of the second backwash catch net; seal by U type seal groove around after the stack; in U type seal groove, bond: in the U of left and right directions type seal groove and only limit in the groove each interlayer the fluid sealant bonding is all arranged; make the U type groove at this place and the first backwash catch net in the groove; first flat sheet membrane; the first water conservancy diversion layer; gripper shoe; the second water conservancy diversion net; second flat sheet membrane; the second backwash catch net becomes one; the first backwash catch net and first flat sheet membrane bonding is then only arranged in the U of above-below direction type seal groove; second flat sheet membrane and second backwash catch net bonding, the U type seal groove of both sides up and down wherein is respectively arranged with guiding gutter; water in-out port and retainer ring.
The flat membrane component that the present invention is back-washable owing to be provided with the backwash catch net, has been strengthened the mechanical strength of flat membrane component, makes flat membrane component can bear backwash pressure.After flat membrane component produces dirty blocking up, cause the water-yielding capacity amount to reduce greatly.At this moment, can carry out on-line cleaning to flat membrane component, with in the flat sheet membrane of flat membrane component and the dirt that adheres to of flat sheet membrane outer surface be flushed in the outer water of surveying of flat sheet membrane, and wash away, thereby recover the water-yielding capacity of flat membrane component rapidly with aeration.
Present embodiment is non-limiting embodiment of the present invention.
Below in conjunction with embodiment and accompanying drawing the present invention is described in detail.
According to order as shown in Figure 7, backwash catch net 61 and 62, flat sheet membrane 11 and 12, water conservancy diversion net 21 and 22, gripper shoe 3 are superimposed, the stack back forms main body shown among Fig. 9 72.Then, will seal with U type seal groove 41,42,43,44 around it, as shown in Figure 7.
As shown in Figure 7, in the groove of U type seal groove 41 and 42 and only limit in the groove each interlayer the fluid sealant bonding is all arranged, the U type groove at this place and backwash catch net, flat sheet membrane, water conservancy diversion net, the gripper shoe in the groove are become one. U type groove 41 and 42 shape as shown in Figure 3, its vertical section is as shown in Figure 4.
As shown in Figure 7, bonding in the U type seal groove 43 and 44 and the bonding in above-mentioned U type seal groove 41 and 42 are different.In U type seal groove 43 and 44 grooves, only backwash catch net and flat sheet membrane in U type seal groove inwall and the groove are bonded to one, and non-caked mutually between the flat sheet membrane 11 and 12, water conservancy diversion net 21 and 22, gripper shoe.Simultaneously, U type seal groove 43 and 44 be respectively equipped with water in-out port 51 and 52 and retainer ring 81 and 82.U type seal groove 43 in guiding gutter 91 and water in-out port 51 intercommunications; Guiding gutter 92 and water in-out port 52 intercommunications in the U type seal groove 44.Shape after U type groove 43 and 44 is set level as shown in Figure 5.
Junction between each above-mentioned U type groove must be airtight.
Back-washable flat sheet membrane must be fully immersed in the water in use, and it is such that pipeline connects: water in-out port 51 and 52 is connected together by the road, and corresponding valve is set in position, then, be connected to water pump more by the road.When normally producing water; after starting water pump; because the suction of water pump; water will see through backwash catch net 61 and 62 successively respectively; flat sheet membrane 11 and 12, after water conservancy diversion net 21 and 22 is pooled to guiding gutter 91 and 92, again through water in-out port 51 and 52 and corresponding pipeline take away by water pump; be product water, and be discharged into cell therefor or cistern.
During backwash, flow direction that can be when adjusting flow direction that respective valves makes water with normal operation is opposite, and should use the comparison clean water, such as the product water during the use ordinary production.Backwash water enters through water in-out port 51 and 52 respectively successively; pass through guiding gutter 91 and 92, water conservancy diversion net 21 and 22, flat sheet membrane 11 and 12 more successively; and backwash catch net 61 and 62; backwash catch net 61 and 62, flat sheet membrane 11 and 12 dirts interior and that outer surface adheres to can be flushed in the outer water of surveying like this; and wash away, thereby recover the water-yielding capacity of flat membrane component rapidly with aeration.Like this, when operation, just realized the on-line cleaning of flat membrane component.
Certainly, in practical engineering application be with a plurality of back-washable flat membrane components through corresponding pipeline, valve combination together after, be equipped with again that corresponding water pump and backwash water pump use.
The present invention moves convenience, simple in structure, has realized on-line cleaning, and membrane bioreactor can be moved continuously.Be specially adapted to water treatment field such as life, chemical industry, bioengineering, environmental protection.
Claims (2)
1. back-washable flat membrane component contains flat sheet membrane, water conservancy diversion net, gripper shoe and U type seal groove, it is characterized in that, described back-washable flat membrane component contains flat sheet membrane main body and U type seal groove, wherein:
The flat sheet membrane main body contains: along the length of side direction of the left and right sides; the order first backwash catch net, first flat sheet membrane, the first water conservancy diversion layer, gripper shoe, the second water conservancy diversion net, second flat sheet membrane and the second backwash catch net that superpose and bond together successively; at above-below direction the first backwash catch net and first flat sheet membrane bonding are only arranged then; second flat sheet membrane and second backwash catch net bonding; the aperture of described backwash catch net is greater than the aperture of described flat sheet membrane
U type seal groove comprises left side U type seal groove, right side U type seal groove, top U type seal groove and bottom U type seal groove, wherein:
Left side U type seal groove and right side U type seal groove are clamped described flat sheet membrane main body from the length of side direction of the left and right sides of described flat sheet membrane main body respectively,
Top U type seal groove and bottom U type seal groove clamps described flat sheet membrane main body from the top and bottom of described flat sheet membrane main body respectively and both are sealing adhesive, between the upper end of and described flat sheet membrane main body inboard, respectively leave a guiding gutter between the lower end of and described flat sheet membrane main body inboard in the U word bottom of described bottom U type seal groove in the U word bottom of described top U type seal groove, described up and down two guiding gutters are water in-out port of UNICOM separately
In described four U type seal grooves, two adjacent U type seal grooves are that bonding is airtight mutually.
2. back-washable flat membrane component according to claim 1 is characterized in that: all respectively there is a retainer ring in the outside of the U type seal groove bottom of the U type seal groove top on described top and bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010183735 CN101829504B (en) | 2010-05-27 | 2010-05-27 | Back-washable flat membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010183735 CN101829504B (en) | 2010-05-27 | 2010-05-27 | Back-washable flat membrane element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101829504A true CN101829504A (en) | 2010-09-15 |
| CN101829504B CN101829504B (en) | 2013-03-13 |
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| CN 201010183735 Active CN101829504B (en) | 2010-05-27 | 2010-05-27 | Back-washable flat membrane element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108404486A (en) * | 2017-02-10 | 2018-08-17 | 霍尼韦尔技术有限公司 | Water filter device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583231A (en) * | 2004-06-04 | 2005-02-23 | 上海一鸣过滤技术有限公司 | Compact planar membrane filtering piece, membrane filtering unit and apparatus |
| CN101152618A (en) * | 2006-09-28 | 2008-04-02 | 长丰股份有限公司 | Immersion type thin plate and frame film filter |
| CN201737765U (en) * | 2010-05-27 | 2011-02-09 | 北京科泰兴达高新技术有限公司 | Flat membrane element being capable of backflushing |
-
2010
- 2010-05-27 CN CN 201010183735 patent/CN101829504B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583231A (en) * | 2004-06-04 | 2005-02-23 | 上海一鸣过滤技术有限公司 | Compact planar membrane filtering piece, membrane filtering unit and apparatus |
| CN101152618A (en) * | 2006-09-28 | 2008-04-02 | 长丰股份有限公司 | Immersion type thin plate and frame film filter |
| CN201737765U (en) * | 2010-05-27 | 2011-02-09 | 北京科泰兴达高新技术有限公司 | Flat membrane element being capable of backflushing |
Non-Patent Citations (1)
| Title |
|---|
| 《功能材料》 20091130 学贤等 可反洗平板膜生物反应器处理园区生活污水研究 1、2 第40卷, 第11期 2 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108404486A (en) * | 2017-02-10 | 2018-08-17 | 霍尼韦尔技术有限公司 | Water filter device |
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| CN101829504B (en) | 2013-03-13 |
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Denomination of invention: Back-washable flat membrane element Effective date of registration: 20191216 Granted publication date: 20130313 Pledgee: Bank of Communications Ltd. Beijing branch Pledgor: Beijing Crystec Technologies Co.,Ltd. Registration number: Y2019990000714 |
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Date of cancellation: 20221121 Granted publication date: 20130313 Pledgee: Bank of Communications Ltd. Beijing branch Pledgor: Beijing Crystec Technologies Co.,Ltd. Registration number: Y2019990000714 |