CN104174293A - Device for relieving or preventing blockage of external tubular ultra-filtration membrane - Google Patents

Device for relieving or preventing blockage of external tubular ultra-filtration membrane Download PDF

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Publication number
CN104174293A
CN104174293A CN201410432685.7A CN201410432685A CN104174293A CN 104174293 A CN104174293 A CN 104174293A CN 201410432685 A CN201410432685 A CN 201410432685A CN 104174293 A CN104174293 A CN 104174293A
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CN
China
Prior art keywords
sewage draining
membrane
alleviates
membrane module
filtration membrane
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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.)
Pending
Application number
CN201410432685.7A
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Chinese (zh)
Inventor
刘军
侯双成
宫建瑞
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NANJING WANDERS ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
NANJING WANDERS ENVIRONMENTAL PROTECTION SCIENCE & TECHNOLOGY Co Ltd
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Priority to CN201410432685.7A priority Critical patent/CN104174293A/en
Publication of CN104174293A publication Critical patent/CN104174293A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a device for relieving or preventing blockage of an external tubular ultra-filtration membrane; the device comprises a water inlet pipeline, a membrane connecting part, a membrane component, a water outlet pipeline, a thick water pipeline and a measurement component; at least one drain outlet for discharging sundries deposited at the water inlet end of the membrane component is arranged at the water inlet side of the membrane component; the drain outlet is at the bottom of the pipeline; a drain valve is installed on an external pipeline of the drain outlet; and at least one cleaning hole is formed at one side of the drain outlet. Compared with the prior art, few pipelines and valves are only additionally arranged in the device disclosed by the invention; investment is very low; blockage of the tubular membrane is relieved through hydraulic washing and draining; compared with physical closed washing, the effect is better; cleaning is simply controlled through manual control of limited and proper valves or self-controlled programs; and the device disclosed by the invention is very convenient to operate.

Description

A kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up
Technical field
The present invention relates to environmental protection water treatment and membrane separation technique field, specifically a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up.
Background technology
In dirty wastewater treatment, ultrafiltration is a kind of process engineering often using, and ultrafiltration is divided into built-in and external two kinds of different forms, respectively has feature, and conventional external milipore filter is tubular ultra-filtration membrane.Tubular ultra-filtration membrane cost is high, price is more expensive, is applied to a plurality of fields such as percolate, coking chemical waste water.In percolate field, DTRO and biochemistry-ultrafiltration-sodium filter-counter-infiltration group technology etc. in the technique that at present conventional standard of drainage is higher, rear a kind of technique generally can be used built-in milipore filter or the external milipore filter of immersion.Because the foreign material in the biological inoculum particularly newly adding in the activated sludge that needs in biochemical process to use are more, there are the tiny pollutants such as hair, fiber.At milipore filter, be designed with prefilter as last, as basket well strainer is removed foreign material, but because prefilter needs activated sludge flco by holding back the foreign material such as large particulate matter and hair, have like this fibrous matters such as a large amount of hairs and enter follow-up milipore filter by filter bores.Often there is clogging in the fenestra that is in operation, particularly adds the early stage of activated sludge bacterial classification.During maintenance, after opening membrane module connector, at the water inlet end of membrane module, can find a lot of fiber fines shape materials, some fenestras part block.The material major parts such as fiber of water inlet end that are blocked in membrane module eyelet through check first accumulate in the putamina and pipeline of water inlet end of membrane module, such drawback cannot be eliminated by the aperture of prefilter, even carry out closed circuit flushing by program with clear water, hair fiber class material is also difficult to clean out and produces effects little.
Summary of the invention
The object of the invention is in order to overcome deficiency of the prior art, the invention provides a kind of small investment, effective, easy to operate alleviate the device that external tubular membrane is stopped up.
The technical solution adopted in the present invention is: a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up, comprise inlet channel, film connector, membrane module, outlet conduit, dense waterpipe and measuring cell, the influent side of described membrane module is provided with at least one for discharging the sewage draining exit that accumulates in membrane module water inlet end foreign material, described sewage draining exit is positioned at duct bottom, on the external pipe of described sewage draining exit, sewage draining valve is installed.
Further, described sewage draining exit one side is provided with at least one Butterworth Hatch.
Further, on the external pipe of described Butterworth Hatch, wash-out valve is installed.
Further, described sewage draining exit caliber is less than the inlet channel diameter of membrane module, and described sewage draining exit is connected with inlet channel by the reducer pipe of gradual change diameter.
As preferably, described sewage outfalls setting is on the putamina of membrane module one end.
As preferably, described sewage outfalls setting is on the pipeline being connected with membrane module.
As preferably, described Butterworth Hatch is arranged on the putamina of membrane module.
As preferably, described Butterworth Hatch is arranged on the pipeline being connected with membrane module.
As preferably, described sewage draining valve is automatic valve.
As preferably, described wash-out valve is automatic valve.
The invention has the beneficial effects as follows, a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up disclosed by the invention, compared with prior art, only increases a small amount of pipeline and valve, invests very little; By the obstruction that alleviates tubular membrane with blowdown of washing away of waterpower, compare better effects if with the closed circuit flushing of physics; Simply by the manual control of limited appropriate valve or automatic program, control cleaning, operation is very easy.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment of single external tubular ultra-filtration membrane;
Fig. 2 is a kind of embodiment of two connected external tubular ultra-filtration membranes;
Fig. 3 is the profile of A-A in Fig. 2;
Wherein, (1) inlet channel; (2) film connector; (3) membrane module; (4) outlet conduit; (5) end face; (6) putamina; (7) fenestra; (11) Butterworth Hatch; (12) sewage draining exit; (13) wash-out valve; (14) sewage draining valve.
The specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and Examples, the present invention is further detailed explanation.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As illustrated in fig. 1 and 2, a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up, comprise inlet channel 1, film connector 2, membrane module 3, outlet conduit 4, dense waterpipe and measuring cell, the influent side of membrane module 3 is provided with at least one for discharging the sewage draining exit 12 of the foreign material that accumulate in membrane module water inlet end, sewage draining exit 12 is positioned at duct bottom, sewage draining valve 14 is installed on the external pipe of sewage draining exit 12, sewage draining exit 12 1 sides are provided with at least one Butterworth Hatch 11, wash-out valve 13 is installed on the external pipe of Butterworth Hatch 11, sewage draining exit 12 calibers are less than the inlet channel diameter of membrane module 3, sewage draining exit 12 is connected with inlet channel 1 by the reducer pipe of gradual change diameter.
External milipore filter process section is generally connected with dense waterpipe with inlet channel 1 by film connector 2, and water inlet is trapped in suspended particulate contaminants in fenestra 7 by the hole wall filtration of fenestra 7, with the large burst of dense water water outlet of flow direction direction.If contain hair, fiber in dirty waste water, they self have bridging action, when external tubular ultra-filtration membrane is worked, hair fiber in fenestra 7 does not enter fenestra 7 or has entered the fenestra 7 of this membrane module but stopped by the end face 5 of the fenestra 7 of next group, can pile up more and more at end face 5.The fenestra 7 being stopped by fiber substance is fewer and feweri in the water inlet of water inlet end, even at the dense water end (W.E.) of membrane module 3, enters fenestra 7, and the flow velocity in fenestra 7 is more and more lower, finally by suspension, is blocked.
Specific embodiments of the invention are,
For alleviating or avoiding this situation, periodic flushing and the discharge dirt that results in blockage before fenestra is blocked, by being set, sewage draining exit and Butterworth Hatch alleviate or avoid the obstruction of external tubular ultra-filtration membrane, for convenience of description, the present invention narrates and cleans and blowdown process with influent side, and dense water side also can adopt the obstruction that sewage draining exit and Butterworth Hatch alleviate or avoid external tubular ultra-filtration membrane is set.
In influent side bottom, a sewage draining exit 12 is set, the sewage draining valve 14 that can regularly open on sewage draining exit 12 is gone out emissions, avoids stopping up.Near end face 5, be provided with the Butterworth Hatch 11 that is no less than, wash mouthfuls 11 current scour end face 5 with Cheongju, the end face that can make fiber on end face 5 and dirt depart from membrane module, drains by sewage draining exit 12.If Butterworth Hatch 11 is far away apart from end face 5, can in inside, stretches out a segment pipe and strengthen the cleaning to end face 5.
As illustrated in fig. 1 and 2, sewage draining exit 12 can design on putamina 6, also can design in the duct bottom being connected with membrane module 3.The sewage draining exit 12 of the centre on the membrane module 3 below in the sewage draining exit 12 in Fig. 1 and Fig. 2 is opened in putamina 6 bottoms, the sewage draining exit 12 on the left side on the membrane module 3 below in Fig. 2 is opened the duct bottom being connected at membrane module 3, the sewage draining exit 12 of the membrane module 3 below in Fig. 2 is illustrated as two, only indicate that two positions can select, the quantity of sewage draining exit can be set as required.The sewage draining exit 12 on the right of the membrane module 3 below in Fig. 2 is opened in the be connected elbow bottom of 180 degree of membrane module 3, is to be that minimum point and the dirt of this section easily drained by sewage draining exit substantially because putting for this.
As illustrated in fig. 1 and 2, Butterworth Hatch can design on putamina 6, also can design on the pipeline being connected with membrane module 3.The Butterworth Hatch 11 on the right on the membrane module 3 below in the Butterworth Hatch 11 in Fig. 1 and Fig. 2 is opened on putamina 6, the Butterworth Hatch 11 on the left side on the membrane module 3 below in Fig. 2 is opened on the pipeline being connected at membrane module 3, the Butterworth Hatch of the membrane module 3 below in Fig. 2 is illustrated as two, only indicate that two positions can select, the quantity of Butterworth Hatch can be set as required.
As shown in Figure 2, the Butterworth Hatch 11 of membrane module 3 is above in the connecting pipe of membrane module, distant, stretches out the effect that a segment pipe cleans with reinforcement to end face annex in connecting pipe inside.
As shown in Figure 3, the Butterworth Hatch 11 pipeline water flow direction after connecting with in the cross section of Butterworth Hatch 11 positions, have an angle; Being projected as of Butterworth Hatch 11 connecting pipe water (flow) directions be take a certain tangent to periphery direction in the concentric circles that the cross section center of circle is together circle center, and clean current and point to membrane module water inlet end plane, make rinse water when pipe flow speed is normal, can well wash away the end face 5 of membrane module.
Butterworth Hatch can be placed on the arbitrarily angled of putamina or pipeline, and effect is preferably the tangential direction that the water (flow) direction of Butterworth Hatch pipeline is cross-section of pipeline.
Cross section is as shown in Figure 3 the facade of an embodiment of sewage draining exit and Butterworth Hatch, and wherein Butterworth Hatch pipeline water flow has produced counterclockwise rotary water current, and this direction only represents the issuable consequence of this embodiment.The object that Butterworth Hatch produces current is that end face and end face annex are washed away, and current can enter in directions such as upper and lower, left and right, forms and is similar to counterclockwise, clockwise rotation or double-cyclone.
As illustrated in fig. 1 and 2, when the sewage draining valve 14 on the wash-out valve 13 on the pipeline of Butterworth Hatch 11 and the pipeline of sewage draining exit 12 is regularly opened, can clean and nigh dirt is accumulated in discharge, adopt automatic valve to move according to auto-programming.
A kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up disclosed by the invention, compared with prior art, only increases a small amount of pipeline and valve, invests very little; By the obstruction that alleviates tubular membrane with blowdown of washing away of waterpower, compare better effects if with the closed circuit flushing of physics; Simply by the manual control of limited appropriate valve or automatic program, control cleaning, operation is very easy.
Be noted that, the above embodiment is to the explanation of technical solution of the present invention and unrestricted, other modifications that are equal to replacement or make according to prior art of affiliated technical field those of ordinary skill, as long as do not exceed thinking and the scope of technical solution of the present invention, within all should being included in interest field of the presently claimed invention.

Claims (10)

1. one kind alleviates or avoids the device that external tubular ultra-filtration membrane stops up, comprise inlet channel (1), film connector (2), membrane module (3), outlet conduit (4), dense waterpipe and measuring cell, it is characterized in that: the influent side of described membrane module (2) is provided with at least one and for discharge, accumulates in the sewage draining exit (12) of membrane module (2) water inlet end foreign material, described sewage draining exit (12) is positioned at duct bottom, and sewage draining valve (14) is installed on the external pipe of described sewage draining exit (12).
2. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 1, is characterized in that: described sewage draining exit (12) one sides are provided with at least one Butterworth Hatch (11).
3. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 2, is characterized in that: wash-out valve (13) is installed on the external pipe of described Butterworth Hatch (11).
4. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 1, it is characterized in that: described sewage draining exit (12) caliber is less than the inlet channel diameter of membrane module (3), described sewage draining exit (12) is connected with inlet channel (1) by the reducer pipe of gradual change diameter.
5. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 1, is characterized in that: described sewage draining exit (12) is arranged on the putamina (6) of membrane module (3) one end.
6. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 1, is characterized in that: described sewage draining exit (12) is arranged on the pipeline being connected with membrane module (3).
7. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 2, is characterized in that: described Butterworth Hatch (11) is arranged on the putamina (6) of membrane module (3).
8. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 2, is characterized in that: described Butterworth Hatch (11) is arranged on the pipeline being connected with membrane module (3).
9. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 1, is characterized in that: described sewage draining valve (14) is automatic valve.
10. a kind of device that alleviates or avoid external tubular ultra-filtration membrane to stop up according to claim 3, is characterized in that: described wash-out valve (13) is automatic valve.
CN201410432685.7A 2014-08-27 2014-08-27 Device for relieving or preventing blockage of external tubular ultra-filtration membrane Pending CN104174293A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112390470A (en) * 2020-11-12 2021-02-23 湖南欧威爱特新材料科技有限公司 Stainless steel membrane group ware

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CN201482426U (en) * 2009-08-26 2010-05-26 上海浩滤特膜技术有限公司 Hollow fiber ultrafiltration membrane component provided with baffle plates
CN201529496U (en) * 2009-09-20 2010-07-21 浙江华强环境科技有限公司 Filter membrane cleaning device
CN101785972A (en) * 2009-01-23 2010-07-28 天津膜天膜科技有限公司 Water treatment system with bidirectional cleaning function
CN101954244A (en) * 2010-08-30 2011-01-26 蓝星环境工程有限公司 Gas-water jet device and gas-shield water jet membrane physical cleaning device
CN201834812U (en) * 2010-09-29 2011-05-18 湖北沙市水处理设备制造厂 Garbage leachate external pipe type ultrafiltration device
CN102145257A (en) * 2011-04-28 2011-08-10 上海交通大学 Method for cleaning filtering membrane modules
CN201930725U (en) * 2011-01-19 2011-08-17 天津泰达新水源科技开发有限公司 Hollow fiber separation membrane component of ultrasonic cleaning device
CN102485329A (en) * 2011-03-22 2012-06-06 绵阳美能材料科技有限公司 External-compression hollow fiber membrane cleaning method with no backwashing process
CN103111188A (en) * 2013-02-05 2013-05-22 江苏苏净集团有限公司 Air-water homogenization external pressure column type membrane assembly
CN103506010A (en) * 2012-06-19 2014-01-15 珠海格力电器股份有限公司 Filter element assembly and water purifier with same
CN204121982U (en) * 2014-08-27 2015-01-28 南京万德斯环保科技有限公司 A kind of device alleviating or avoid external tubular ultra-filtration membrane and block

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1872399A (en) * 2005-06-02 2006-12-06 中国科学院生态环境研究中心 Outer installation type gas lift circulation membrane splitter
CN101785972A (en) * 2009-01-23 2010-07-28 天津膜天膜科技有限公司 Water treatment system with bidirectional cleaning function
CN201482426U (en) * 2009-08-26 2010-05-26 上海浩滤特膜技术有限公司 Hollow fiber ultrafiltration membrane component provided with baffle plates
CN201529496U (en) * 2009-09-20 2010-07-21 浙江华强环境科技有限公司 Filter membrane cleaning device
CN101954244A (en) * 2010-08-30 2011-01-26 蓝星环境工程有限公司 Gas-water jet device and gas-shield water jet membrane physical cleaning device
CN201834812U (en) * 2010-09-29 2011-05-18 湖北沙市水处理设备制造厂 Garbage leachate external pipe type ultrafiltration device
CN201930725U (en) * 2011-01-19 2011-08-17 天津泰达新水源科技开发有限公司 Hollow fiber separation membrane component of ultrasonic cleaning device
CN102485329A (en) * 2011-03-22 2012-06-06 绵阳美能材料科技有限公司 External-compression hollow fiber membrane cleaning method with no backwashing process
CN102145257A (en) * 2011-04-28 2011-08-10 上海交通大学 Method for cleaning filtering membrane modules
CN103506010A (en) * 2012-06-19 2014-01-15 珠海格力电器股份有限公司 Filter element assembly and water purifier with same
CN103111188A (en) * 2013-02-05 2013-05-22 江苏苏净集团有限公司 Air-water homogenization external pressure column type membrane assembly
CN204121982U (en) * 2014-08-27 2015-01-28 南京万德斯环保科技有限公司 A kind of device alleviating or avoid external tubular ultra-filtration membrane and block

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112390470A (en) * 2020-11-12 2021-02-23 湖南欧威爱特新材料科技有限公司 Stainless steel membrane group ware

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Application publication date: 20141203