CN105126624A - Recyclable hollow fiber nano-filtering membrane assembly - Google Patents
Recyclable hollow fiber nano-filtering membrane assembly Download PDFInfo
- Publication number
- CN105126624A CN105126624A CN201510441991.1A CN201510441991A CN105126624A CN 105126624 A CN105126624 A CN 105126624A CN 201510441991 A CN201510441991 A CN 201510441991A CN 105126624 A CN105126624 A CN 105126624A
- Authority
- CN
- China
- Prior art keywords
- water inlet
- membrane
- hollow fiber
- water
- main casing
- 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.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a recyclable hollow fiber nano-filtering membrane assembly, which includes a shell and a filter core. The shell includes a main shell body, a water inlet end cover and a water outlet end cover. The assembly is characterized in that the filter core is prepared from a nano-filtering membrane which is a sulfonated polyethersulfone hollow nano filtering membrane. The filter core includes two parts: a water inlet end and a water outlet end, wherein the water inlet end is a sealed flange being connected to a water inlet pipe. A plurality of water outlet holes are distributed uniformly on the water inlet pipe. The bottom of the water inlet pipe is sealed. The water outlet end is connected to the nano-filtering membrane, wherein the membrane filaments of the nano-filtering membrane are U-shaped in the main shell body and are densely distributed around the water inlet pipe to form a nano-filtering membrane bundle. The two ends of the membrane filaments are disposed at the water outlet of the filter core. The assembly has good pollution resistance, is strong in pressure bearing capability, is easy to clean and is recyclable.
Description
Technical field
The present invention relates to a kind of reusable edible hollow fiber nanofiltration membrane assembly, be mainly used in the desalination of bitter or seawater, belong to field of water treatment equipment.
Background technology
Nanofiltration (NF) is a kind of membrane separating process between counter-infiltration (RO) and ultrafiltration (UF), is the later stage eighties 20th century in order to the demand that adapts to industrial demineralized water and the membrane process reducing costs and grow up.NF membrane still has compared with high desalination performance and keeps higher water thoroughly to measure under very low-pressure, its pore diameter range is at 0.5-2 ran, its separating mechanism had both comprised mechanical grading and electrical charge rejection, therefore divalent salts can well be removed, and organic molecule pollutant, pesticide, surfactant etc.
China just starts the development of NF membrane from the later stage eighties 20th century, in succession develop CA-CTA NF membrane in the lab, SPES coating NF membrane and aromatic polyamides composite nanometer filtering film, and experimental study has been carried out to the aspect such as sign and pollution mechanism of its performance, achieve the achievement that some are preliminary.But compared with abroad, Development Techniques and the application and development of China's NF membrane are all also in the starting stage.NF membrane is in the market based on dull and stereotyped NF membrane, and its modular construction is wound module.Comparatively speaking, wound module has following shortcoming: be that bulk density is low, anti-fouling performance is poor, and pressure loss is large.And hollow fiber nanofiltration membrane assembly, it can reduce the flowing crushing through water, obtains uniform current; The probability of hollow-fibre membrane blocking is simultaneously less than rolled film many; In addition the specific area of hollow fiber film assembly is 10 times of rolled membrane module, but nanofiltration membrane component is based on inner pressed, and shaping rear element is not reproducible recycles for the manufacture of its assembly, causes assembly use cost high.Therefore, clean more difficult and element after using a period of time for commercial hollow fiber nanofiltration membrane assembly the shortcoming such as can not to reuse and devise a kind of reusable edible hollow fiber nanofiltration membrane assembly.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide that a kind of pollution resistance is good, bearing capacity is strong, the external-compression type reusable edible hollow fiber nanofiltration membrane assembly of easy cleaning.
The object of the present invention is achieved like this: a kind of reusable edible hollow fiber nanofiltration membrane assembly, it comprises shell and filter core, described shell comprises main casing, water inlet end end socket and water side end socket, it is characterized in that: described filter core adopts NF membrane, and described NF membrane is sulfonated polyether sulfone class hollow NF membrane.
Described reusable edible hollow fiber nanofiltration membrane assembly, filter core comprises water inlet end and water side two parts, and water inlet end is the airtight flange being connected with water inlet pipe, water inlet pipe is evenly distributed with some apopores, and water inlet pipe bottom is sealing; Water side is connected with NF membrane; The form of film silk in main casing of NF membrane is " U " font, and film silk gathers around water inlet pipe, composition NF membrane bundle; The two ends of film silk are arranged at the water outlet of filter core.
Described reusable edible hollow fiber nanofiltration membrane assembly, is enclosed with non-woven fabrics outside NF membrane bundle.
Described reusable edible hollow fiber nanofiltration membrane assembly, described water inlet pipe is provided with many, and these many water inlet pipes are evenly distributed in main casing.
Described reusable edible hollow fiber nanofiltration membrane assembly, cast by the two ends of the film silk of NF membrane and flange and form in the water side of described filter core, the adhesive that casting uses is epoxy resin.
Described reusable edible hollow fiber nanofiltration membrane assembly, the upper and lower two ends of described main casing all with flange, main casing inner with filter core water side connecting portion also with flange, main casing has out dense mouth and under go out dense mouth.
Described reusable edible hollow fiber nanofiltration membrane assembly, main casing, water inlet end end socket and water side end socket are sanitation-grade stainless steel.
A kind of using method of reusable edible hollow fiber nanofiltration membrane assembly, at operating pressure, to be entered in water inlet end end socket through water inlet by filtrate body under normal temperature, flow into water inlet pipe, flowed out by the apopore on water inlet pipe and filter through sulfonated polyether sulfone class hollow fiber nanofiltration membrane, clear water hollow pipeline in NF membrane flows to the end socket of water side from water side, and then clear water flows out assembly through delivery port; Dope through on go out dense mouth and under go out dense mouth flow out assembly.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention comparatively other nanofiltration membrane component has the following advantages:
(1) have employed many water inlet pipes is evenly distributed in main casing, and on water inlet pipe, be uniformly distributed several circular ostium excurrenses, ensure that being evenly distributed into water, ensure that the stable water pressure suffered by NF membrane, avoid pressurized inequality to cause the damage rupture of NF membrane.
(2) have employed sulfonated polyether sulfone class NF membrane, such film has good hydrophily, and separating property is good, resistance tocrocking is good, and flux is high, and intensity is high, can reuse after cleaning.
(3), during the casting of film silk, hollow fiber nanofiltration membrane distributes with U-shaped, and water side of only need casting, eliminates water inlet end casting step, simple to operate, reduces production cost.
(4) main casing that the present invention is used, and two ends end socket is all the sanitation-grade stainless steel used, ensure that assembly has good shock resistance and bearing capacity, assembly can Long-Time Service.
(5) assembly adopts the structure of external-compression type, and the bearing capacity of film is stronger, and the cleaning fluid of film is more convenient.
(6) film used is hollow-fibre membrane, and specific area is large.
(7) this assembly is primarily of main casing, and the end socket at two ends, water side and a few incorporating aspects of water inlet end form, and they rely on Flange joint, and dismounting is more convenient.Can carry out very easily cleaning or changing when NF membrane flux decline or when damaging, and the NF membrane only need changed flanged (FLGD) water side and be cast on together with it.Main casing, two ends end socket, water inlet end and with water inlet pipe and the accessory such as bolt, nut, sealing ring can repetitive cycling use, reduce production and use cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of reusable edible hollow fiber nanofiltration membrane assembly of the present invention.
Fig. 2 is the main shell structure schematic diagram of reusable edible hollow fiber nanofiltration membrane assembly of the present invention.
Fig. 3 is the end enclosure structure schematic diagram of reusable edible hollow fiber nanofiltration membrane assembly of the present invention.
Fig. 4 is the water inlet end structural representation of reusable edible hollow fiber nanofiltration membrane assembly of the present invention.
Fig. 5 is the water side structural representation of reusable edible hollow fiber nanofiltration membrane assembly of the present invention.
Wherein:
1, water inlet, 2, water inlet end end socket, 3, water inlet end, 4, NF membrane, 5, dense mouth is gone out on, 6, main casing, 7, water inlet pipe (having ostium excurrens), 8, dense mouth is gone out under, 9, end flanges under main casing, 10, water side cover flange, 11, delivery port, 12, water side end socket, 13, water side, 14, flange, 15, water side flange, 16, water inlet pipe end socket, 17, main casing upper port flange, 18, water inlet end flange, 19 water inlet end cover flanges.
Detailed description of the invention
In order to can the more simple and clear advantage must understood the present invention and have; be specifically described in conjunction with following five figure; following accompanying drawing forms a part of the present invention; but following accompanying drawing just intuitively illustrates the structural principle of invention; for those skilled in the art of the present technique; without departing from the inventive concept of the premise, this invention is modified, also should be considered as in scope.Wherein:
Fig. 1 is the structural representation of reusable edible hollow fiber nanofiltration membrane assembly of the present invention.In Fig. 1: distribute NF membrane silks to represent the distribution of NF membrane bundle to only depict four U-shapeds in the distribution of visual representation NF membrane and the upper figure of convenient mapping.Separately, water inlet pipe 7 is with equally distributed ostium excurrens.
Fig. 2 is the schematic diagram of main casing 6, go out wherein dense mouth 5 and under go out dense mouth 8 and be distributed in above main casing.With end flanges under main casing 9, flange 14, main casing upper port flange 17.
When Fig. 3 is water inlet end end socket 2 structural representation, water inlet end end socket 2 is with water inlet 1 and water inlet end cover flange 19; During structural representation for water side end socket 12, water side end socket is with delivery port 11 and water side cover flange 10.
Fig. 4 is the sectional view of water inlet end 3, with water inlet end flange 18, bolt hole, water inlet pipe 7.
Fig. 5 is the sectional view of water side 13, with water side flange 15 and bolt hole, and the middle unobstructed hollow fiber nanofiltration membrane 4 for having cast.
See Fig. 1-5, a kind of reusable edible hollow fiber nanofiltration membrane assembly that the present invention relates to, its structure comprises:
1, water inlet end 3 is the airtight end face of band water inlet pipe 7 and flange 18, and water inlet pipe 7 and water inlet end 3 are all sanitation-grade stainless steels.
2, water inlet pipe 7 is welded on above water inlet end 3, and water inlet pipe upper end is opening, and water inlet pipe 7 is evenly distributed with some ostium excurrenses, bottom end closure above.
3, cast by flange 15 and NF membrane 4 and form in water side, and casting end is unobstructed through otch caudacoria silk, and adhesive used of casting is epoxy resin.NF membrane 4 is sulfonated polyether sulfone class hollow fiber nanofiltration membrane.
4, NF membrane 4 is two ends casting when casting, and hollow fiber nanofiltration membrane is curved U-shaped.
5, be distributed in water inlet pipe 7 surrounding NF membrane 4 uniform close and form NF membrane bundle, then use non-woven wraps NF membrane bundle.
6, NF membrane bundle water side 13 is loaded main casing from main casing upper port down, the gasket seal supporting with flange is placed with in the middle of water side flange 15 and main casing inboard wall flange 14, put into bolt tightening nut in bolt hole, complete being mounted with of water side and main casing.Water side flange 15 diameter is less than main casing internal diameter, to ensure normal mounting.Main casing inboard wall flange 14 is welded on main casing inwall, and is 360 degree of seamless weldings, ensures seal.
7, sealing ring is placed with between main casing upper port flange 17 and water inlet end flange 18, gasket seal is placed with between water inlet end flange 18 and water inlet end cover flange 19, bolt is put into by between main casing upper port flange 17, water inlet end flange 18, water inlet end cover flange 19, fastening nut, complete main casing and water inlet end, water inlet end end socket three is mounted with.
8, under main casing end flanges 9 and water side end socket 12 with water side cover flange 10 between be placed with gasket seal, in bolt hole, put into bolt, fastening nut completes being mounted with of main casing and water side end socket.
9, go out on dense mouth 5 and under go out dense mouth 8 with flange, water inlet 1 and delivery port 11, with flange, convenient to be connected with corresponding pipeline.
10, at operating pressure 0.6Mpa, be that the NaCl solution of 518.8mg/L enters in water inlet end end socket 2 through water inlet 1 by concentration at normal temperature 25 DEG C, flow into water inlet pipe 7, flowed out by the ostium excurrens on water inlet pipe and filter through sulfonated polyether sulfone class NF membrane 4, clear water hollow pipeline in NF membrane flows to water side end socket 12 from water side, and then clear water flows out assembly through delivery port 11.Dope through on go out dense mouth 5 and under go out dense mouth 8 and flow out assembly.
11, at operating pressure 0.6Mpa, be the MgSO of 2088mg/L by concentration at normal temperature 25 DEG C
4solution enters in water inlet end end socket 2 through water inlet 1, flow into water inlet pipe 7, flowed out by the ostium excurrens on water inlet pipe and filter through sulfonated polyether sulfone class NF membrane 4, clear water hollow pipeline in NF membrane flows to water side end socket 12 from water side, and then clear water flows out assembly through delivery port 11.Dope through on go out dense mouth 5 and under go out dense mouth 8 and flow out assembly.
12, by measuring unit time t, pure water transit dose Q, obtains aquifer yield F (F=Q/t).By measuring the electrical conductivity before and after nanofiltration with conductivity meter, calculate the desalination rate R of NF membrane.
Component detection result
| Test item | NaCl | MgSO 4 |
| Aquifer yield L/h | 4.21 | 3.50 |
| Salt rejection rate % | 30.07 | 94.31 |
Other nanofiltration membrane component design standard
| Test item | NaCl | MgSO 4 |
| Aquifer yield L/h | 3.50 | 3.0 |
| Salt rejection rate % | 20.05 | 94.05 |
From module testing result, known the present invention has good salt rejection rate, and has good aquifer yield.Separating property of the present invention is good, resistance tocrocking is good, and flux is high, and intensity is high, and nanofiltration functional layer is uniform and stable, and element can repetitive cycling use.In seawater and brackish water desalination, sewage disposal, ultra-pure water preparation field is with a wide range of applications.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (7)
1. a reusable edible hollow fiber nanofiltration membrane assembly, it comprises shell and filter core, and described shell comprises main casing, water inlet end end socket and water side end socket, it is characterized in that: described filter core adopts NF membrane, and described NF membrane is sulfonated polyether sulfone class hollow NF membrane.
2. a kind of reusable edible hollow fiber nanofiltration membrane assembly according to claim 1, it is characterized in that: filter core comprises water inlet end and water side two parts, water inlet end is the airtight flange being connected with water inlet pipe, water inlet pipe is evenly distributed with some apopores, and water inlet pipe bottom is sealing; Water side is connected with NF membrane; The form of film silk in main casing of NF membrane is " U " font, and film silk gathers around water inlet pipe, composition NF membrane bundle; The two ends of film silk are arranged at the water outlet of filter core.
3. a kind of reusable edible hollow fiber nanofiltration membrane assembly according to claim 2, is characterized in that: outside NF membrane bundle, be enclosed with non-woven fabrics.
4. a kind of reusable edible hollow fiber nanofiltration membrane assembly according to claim 2, it is characterized in that: described water inlet pipe is provided with many, these many water inlet pipes are evenly distributed in main casing.
5. a kind of reusable edible hollow fiber nanofiltration membrane assembly according to claim 2, is characterized in that: cast by the two ends of the film silk of NF membrane and flange and form in the water side of described filter core, the adhesive that casting uses is epoxy resin.
6. a kind of reusable edible hollow fiber nanofiltration membrane assembly according to claim 2, it is characterized in that: the upper and lower two ends of described main casing are all with flange, main casing inner with filter core water side connecting portion also with flange, main casing has out dense mouth and under go out dense mouth.
7. a kind of reusable edible hollow fiber nanofiltration membrane assembly according to claim 1, is characterized in that: main casing, water inlet end end socket and water side end socket are sanitation-grade stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441991.1A CN105126624A (en) | 2015-07-25 | 2015-07-25 | Recyclable hollow fiber nano-filtering membrane assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441991.1A CN105126624A (en) | 2015-07-25 | 2015-07-25 | Recyclable hollow fiber nano-filtering membrane assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105126624A true CN105126624A (en) | 2015-12-09 |
Family
ID=54712399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510441991.1A Pending CN105126624A (en) | 2015-07-25 | 2015-07-25 | Recyclable hollow fiber nano-filtering membrane assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105126624A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002011867A1 (en) * | 2000-08-02 | 2002-02-14 | Toray Industries, Inc. | Hollow yarn membrane module, hollow yarn membrane module unit, and method of producing hollow yarn membrane modules |
| CN202237806U (en) * | 2011-10-10 | 2012-05-30 | 山东工大环境工程有限公司 | Ultrafilter with high water flow efficiency |
| CN203235423U (en) * | 2013-03-15 | 2013-10-16 | 中国石油天然气集团公司 | External pressure type hollow fiber ultrafiltration membrane assembly |
| CN104607055A (en) * | 2014-12-31 | 2015-05-13 | 江阴市向阳科技有限公司 | Preparation method of hollow fiber nano filtration membrane for water treatment |
| CN204746107U (en) * | 2015-07-25 | 2015-11-11 | 李祥庆 | But cyclic utilization hollow fiber receives filter membrane subassembly |
-
2015
- 2015-07-25 CN CN201510441991.1A patent/CN105126624A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002011867A1 (en) * | 2000-08-02 | 2002-02-14 | Toray Industries, Inc. | Hollow yarn membrane module, hollow yarn membrane module unit, and method of producing hollow yarn membrane modules |
| CN202237806U (en) * | 2011-10-10 | 2012-05-30 | 山东工大环境工程有限公司 | Ultrafilter with high water flow efficiency |
| CN203235423U (en) * | 2013-03-15 | 2013-10-16 | 中国石油天然气集团公司 | External pressure type hollow fiber ultrafiltration membrane assembly |
| CN104607055A (en) * | 2014-12-31 | 2015-05-13 | 江阴市向阳科技有限公司 | Preparation method of hollow fiber nano filtration membrane for water treatment |
| CN204746107U (en) * | 2015-07-25 | 2015-11-11 | 李祥庆 | But cyclic utilization hollow fiber receives filter membrane subassembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207401362U (en) | Membrane filtration core assembly, composite filter element device and purifier | |
| CN204746107U (en) | But cyclic utilization hollow fiber receives filter membrane subassembly | |
| CN105126624A (en) | Recyclable hollow fiber nano-filtering membrane assembly | |
| CN208500440U (en) | Desalination plant putamina | |
| CN206656769U (en) | A kind of ship is with pollutant preventing and treating flowmeter | |
| CN210544415U (en) | Ultrafiltration membrane assembly | |
| CN211141688U (en) | Convenient five-stage water purification system for grading water intake | |
| CN204128906U (en) | A kind of PE pipe external pressure test device | |
| CN206837871U (en) | A kind of hyperfiltration membrane assembly | |
| CN109852985B (en) | Water electrolysis hydrogen production device with gas pre-purification function | |
| CN208340505U (en) | A kind of novel combination type RO reverse osmosis membrane assembly | |
| CN107188322B (en) | Combined filter element of water purifier | |
| CN209173535U (en) | A kind of equipment that can be purified propylene, purify propane | |
| CN207169433U (en) | A kind of pressure vessel for reverse osmosis | |
| CN207918544U (en) | A kind of composite filter element and purifier | |
| CN206970348U (en) | Water purification system and water purifier | |
| CN220745500U (en) | Hollow fiber ultrafiltration membrane filter core capable of removing scale | |
| CN206285599U (en) | A kind of automatically cleaning water purifier | |
| CN205773774U (en) | A kind of novel reverse osmosis membrane apparatus | |
| CN219469780U (en) | Hollow fiber ultrafiltration equipment for industrial wastewater treatment | |
| CN205965532U (en) | External pressure type hollow fiber membrane subassembly device | |
| CN108854201A (en) | A kind of water filter for kitchen use with groove filter core | |
| CN220091019U (en) | Reverse osmosis membrane shell component | |
| JP2008221108A (en) | Liquid separation membrane module | |
| CN219546845U (en) | Horizontal type purifying scale-inhibiting water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
|
| RJ01 | Rejection of invention patent application after publication |