CN203048627U - Multi-page spiral-wound film contactor for removing dissolved gas in water - Google Patents
Multi-page spiral-wound film contactor for removing dissolved gas in water Download PDFInfo
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- CN203048627U CN203048627U CN 201320016950 CN201320016950U CN203048627U CN 203048627 U CN203048627 U CN 203048627U CN 201320016950 CN201320016950 CN 201320016950 CN 201320016950 U CN201320016950 U CN 201320016950U CN 203048627 U CN203048627 U CN 203048627U
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Abstract
The utility model provides a multi-page spiral-wound film contactor for removing dissolved gas in water. The contactor comprises a pipe shell, a film core and a shell cover, wherein the film core comprises two layers of plate type microporous film sheets and a film bag which is formed by overlapping a layer of insulating net and is wound around a central tube, and a spiral inner cavity and a spiral outer cavity are formed inside and outside the film bag. Water flows through the outer wall of the film, a sweeping gas is exhausted from the inner wall of the film by a vacuum pump, the large-flow sweeping gas and the vacuum degree generated by the vacuum pump drive the gas phase movement of the CO2 or O2 in the water inside the film to the inside of the film wall, and interphase mass transfer and separation are achieved through the indirect contact between the microporous film sheets between passages. The multi-page spiral-wound film contactor can remove oxygen at a lower temperature, does not need to heat water, is low in energy consumption, compact in structural design, small in size, convenient in mounting and application, simple in operation, stable in equipment running, small in circulating volume, and good in separation effect, degassing efficiency can be as high as more than 99%, water outlet CO2 concentration is less than 2ppm (Parts Per Million), and water outlet O2 concentration is less than 2ppb (Parts Per Billion).
Description
Technical field
The utility model relates to a kind of for the multipage rolled film contactor of removing the water dissolved gas, is used in particular for O in the steam boiler water
2Removal.
Background technology
In the industrial production, requirement to oxygen in water content is more and more stricter, food, biotechnology, semi-conductor and boiler feed water etc. all need to carry out the removal of dissolved oxygen, especially at boiler industry, the existence of dissolved oxygen easily causes the corrosion of boiler and hydraulic pipe-line, and is deposited on the surface, boiler wall, make boiler be heated inequality and cause the blast, according to incompletely statistics, account for 40% or more relevant with dissolved oxygen of various faults of boiler.Therefore, the control of thermal recovery boiler water oxygen level is crucial to guaranteeing that the operation of steam for thermal recovery safe and economical boiler ground plays a part.National departments concerned is also very paid close attention to, and must remove the dissolved oxygen in the water when expressly providing capacity of boiler 〉=2t/h among the GB GB1576-85.Tradition method of deoxidation equipment complexity, the energy consumption height easily causes environmental pollution, thereby needs a kind of deoxy technology of novel, energy-conserving and environment-protective badly, and membrane contactor method deoxy technology arises at the historic moment.
Membrane contactor is divided into two phase regions by the hydrophobic microporous membrane, and one is the water district, and one is gas phase zone.Gas phase zone is connected with vacuum system.After the dissolved oxygen raw water entered membrane contactor, because film is the hydrophobic microporous membrane, water can not enter gas phase zone by fenestra, and gas can be by the fenestra mass transfer to gas phase zone.Under the effect of vacuum decompression, there is partial pressure difference in oxygen in water district and the gas phase zone of film both sides, thus oxygen by the fenestra mass transfer in gas phase zone, be evacuated eliminating.Thereby water is realized the deoxidation of raw water, and the de-oxygenised water that obtains is discharged from membrane module.This operation with the vacuum decompression degassing tower is similar.
Common membrane contactor generally has board-like membrane contactor and tubular fibre formula membrane contactor.Wherein board-like membrane contactor packing density is little, and efficient is low, often needs multistage membrane contactor series-parallel connection to use, the operation of equipment complexity, and disengaging time is long; Tubular fibre formula membrane contactor packing density height has the self-supporting effect, uses more extensively, but some mould material (as tetrafluoroethylene) is limited to by filming technology, is difficult to obtain tubular fibre formula membrane contactor, uses to be subjected to certain limitation.
The utility model content
At board-like membrane contactor and the present problem that exists of tubular fibre formula membrane contactor, the utility model is released a kind of multipage rolled film contactor, and deoxygenation does not at low temperatures need the water heating, and energy consumption is low; The structure design compactness, volume is little, and is easy to install; Simple to operate, stable equipment operation; The circulation volume is little, good separating effect, and degassing efficiency can be up to more than 99%, water outlet CO
2Concentration is less than 2ppm, O
2Concentration is less than 2ppb.
The utility model with board-like microporous membrane by filling in the shell after rolling, tamped density is higher, and a plurality of film bag inner chambers link to each other with pipe core, improve the efficient of membrane contactor, and can utilize the board-like film of various hydrophobic materials such as polypropylene, polyvinylidene difluoride (PVDF) and tetrafluoroethylene to make membrane contactor.
The related multipage rolled film contactor of the utility model is cylindrical-shaped structure, comprises film core, shell and cap three parts.Cap is sewn in the two ends up and down of shell, the film core places shell inside and is connected with the shell casting, the film core is rolled around pipe core by the film bag and forms, the film bag is formed by stacking by the two-ply filter that pore membrane sheet and is placed between the two-layer microporous membrane that declines, inside and outside helical cavity and the exocoel of forming of film bag, filter length is less than microporous membrane length, and board-like microporous membrane links to each other all around with filter.Between film bag and the film bag outer filter is arranged, inner chamber supports by the filter between the microporous membrane, and the outer layer of exocoel filter supports.Forming with film bag microporous membrane in shell inside is two liquid flow passages of two-phase separating interface.
The technical solution of the utility model comprises: a kind of for the multipage rolled film contactor of removing the water soluble gas, comprise shell, film core and cap, cap is at the two ends up and down of shell, the film core places shell inside and is connected with shell, wherein the film core is rolled around pipe core by the film bag and forms, the film bag is formed by stacking by the two-ply filter that pore membrane sheet and is placed between the two-layer microporous membrane that declines, between film bag and the film bag outer filter is arranged, inside and outside film bag inner chamber and the film bag exocoel of forming of film bag, film bag inner chamber is supported by the filter between the microporous membrane, and exocoel is supported by outer filter; Forming with film bag microporous membrane in shell inside is two liquid flow passages of two-phase separating interface; Pipe core one end links to each other with the cap of shell lower end, and an end passes from the cap of shell upper end, links to each other with vacuum pump.
Pipe core is provided with several center pores, links to each other with corresponding film bag inner chamber respectively, and the gas in the water enters film bag inner chamber, is collected in pipe core.Particularly, pipe core has five center pores to link to each other with five film bag inner chambers respectively.
Described filter length is less than the length of microporous membrane, and microporous membrane links to each other all around with filter.
Have on the described shell shell import and shell the outlet respectively with the import of film bag exocoel and the outlet UNICOM.
Described shell import and shell outlet are respectively purified water inlet and pure water outlet, and the inner chamber import is purge gas inlet, and sweeping gas adopts N
2, the CO of pipe core outlet for removing
2And O
2
The inside and outside fractal formation inner chamber of film bag and exocoel, have on the shell two openings respectively with the import of film bag exocoel and outlet UNICOM, be two liquid flow passages of two-phase separating interface inner the formation with film bag microporous membrane of shell.The opening of shell bottom and film bag exocoel import UNICOM, the opening on shell top and film bag exocoel outlet UNICOM.
Described film bag adopts hydrophobic polypropylene, polyvinylidene difluoride (PVDF) or polytetrafluoroethylmaterial material to make.
Water flows through from the film outer wall, and sweeping gas is taken away by vacuum pump from the inwall of film.The vacuum tightness that the sweeping gas of big flow and vacuum pump produce is ordered about the CO in the water
2Perhaps O
2Gas phase from film in the membranous wall moves, and realizes interphase mass transfer and separates by microporous membrane indirect contact between the passage.This multipage rolled film contactor deoxygenation does not at low temperatures need the water heating, and energy consumption is low; The structure design compactness, volume is little, and is easy to install; Simple to operate, stable equipment operation; The circulation volume is little, good separating effect, and degassing efficiency can be up to more than 99%, water outlet CO
2Concentration is less than 2ppm, O
2Concentration is less than 2ppb.
Description of drawings
Fig. 1, multipage rolled film contactor construction synoptic diagram
Fig. 2, multipage rolled film contactor cross-sectional structure synoptic diagram
Board-like microporous membrane and the filter overlaying state synoptic diagram of Fig. 3, multipage rolled film contactor film bag
Description of symbols among the figure: 1. cap; 2. pipe core; 3. film core; 4. center pore; 5. film bag exocoel; 6. film bag inner chamber; 7. shell; 8. film bag; 9. board-like microporous membrane; 10. filter; 11 shell imports; The outlet of 12 shells; 13 inner chamber imports; 14 pneumatic outlets.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
Embodiment 1: the related multipage rolled film contactor of the utility model is cylindrical-shaped structure, comprises film core 3, shell 7 and cap 1 three parts.Film core 3 places in the shell 7 and with shell 7 casting and is connected.Cap 1 is sewn on shell 7 two ends.Film core 3 is rolled around pipe core 2 by film bag 8 and forms, film bag 8 is formed by stacking by the two-ply filter 10 that pore membrane sheet 9 and is placed between the two-layer microporous membrane that declines, filter 10 length are slightly smaller than microporous membrane 9 length, and board-like microporous membrane 9 links to each other all around with filter 10.Between film bag 8 and the film bag 8 outer filter is arranged, film bag 8 inside and outside inner chamber 6 and the exocoels 5 of forming, inner chamber 6 supports by the filter 10 between the microporous membrane, and 5 outer layers of filter of exocoel support.Forming with film bag microporous membrane 9 in shell inside is two liquid flow passages of two-phase separating interface.Pipe core 2 walls have five open channels to link to each other with five film bag inner chambers respectively, and the soluble gas in the water enters film bag inner chamber 6, is collected in pipe core 2.Cap 1 casting of pipe core 2 one ends and shell 7 lower ends links to each other, and an end links to each other with vacuum pump, passes from the cap 1 of shell 7 upper ends.Have on the shell 7 shell import 11 and shell the outlet 12 respectively with 5 imports of film bag exocoel and the outlet UNICOM.Shell import 11 and shell outlet 12 are respectively purified water inlet and pure water outlet, and inner chamber import 13 is purge gas inlet, and sweeping gas adopts N
2, export 14 CO for removing that go out from pipe core
2And O
2Described film bag adopts hydrophobic polypropylene, polyvinylidene difluoride (PVDF) or polytetrafluoroethylmaterial material to make.
Claims (7)
1. multipage rolled film contactor of be used for removing the water soluble gas, comprise shell (7), film core (3) and cap (1), cap (1) is at the two ends up and down of shell (7), it is characterized in that: film core (3) places shell (7) inside and is connected with shell (7), wherein film core (3) is rolled around pipe core (2) by film bag (8) and forms, film bag (8) is formed by stacking by the two-ply filter (10) that pore membrane sheet (9) and is placed between the two-layer microporous membrane that declines, between film bag (8) and the film bag (8) outer filter is arranged, inside and outside film bag inner chamber (6) and the film bag exocoel (5) of forming of film bag (8), film bag inner chamber (6) is supported by the filter between the microporous membrane (10), and exocoel (5) is supported by outer filter; Forming with film bag (8) microporous membrane in shell (7) inside is two liquid flow passages of two-phase separating interface; Pipe core (2) one ends link to each other with the cap (1) of shell (7) lower end, and an end passes from the cap (1) of shell (7) upper end, links to each other with vacuum pump.
2. a kind of multipage rolled film contactor according to claim 1, it is characterized in that: pipe core (2) is provided with several center pores (4), the center pore links to each other with corresponding film bag inner chamber (6) respectively, and the gas in the water enters film bag inner chamber (6), is collected in pipe core (2).
3. as claimed in claim 2 a kind of for the multipage rolled film contactor of removing the water soluble gas, it is characterized in that: pipe core (2) has five center pores to link to each other with five film bag inner chambers (6) respectively.
4. as claimed in claim 1 a kind of for the multipage rolled film contactor of removing the water soluble gas, it is characterized in that: described filter (10) length is less than the length of microporous membrane (9), and microporous membrane (9) links to each other all around with filter (10).
5. as claimed in claim 1 a kind of for the multipage rolled film contactor of removing the water soluble gas, it is characterized in that: shell import (11) and shell outlet (12) is arranged respectively with film bag exocoel (5) import with export UNICOM on the described shell (7).
6. as claimed in claim 1 a kind of for the multipage rolled film contactor of removing the water soluble gas, it is characterized in that: described shell import and shell outlet are respectively purified water inlet and pure water outlet, and the inner chamber import is purge gas inlet, and sweeping gas adopts N
2, the CO of pipe core outlet for removing
2And O
2
7. as claimed in claim 1 a kind of for the multipage rolled film contactor of removing the water soluble gas, it is characterized in that: described multipage rolled film contactor is cylindrical-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320016950 CN203048627U (en) | 2013-01-14 | 2013-01-14 | Multi-page spiral-wound film contactor for removing dissolved gas in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320016950 CN203048627U (en) | 2013-01-14 | 2013-01-14 | Multi-page spiral-wound film contactor for removing dissolved gas in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203048627U true CN203048627U (en) | 2013-07-10 |
Family
ID=48731605
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320016950 Expired - Fee Related CN203048627U (en) | 2013-01-14 | 2013-01-14 | Multi-page spiral-wound film contactor for removing dissolved gas in water |
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| Country | Link |
|---|---|
| CN (1) | CN203048627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058308A (en) * | 2013-01-14 | 2013-04-24 | 山东中宇环保科技有限公司 | Multi-page rolled type film contactor for removing resolvable gases in water |
| CN108201711A (en) * | 2018-02-09 | 2018-06-26 | 重庆中电大宇卫星应用技术研究所 | A kind of decompression degasser |
-
2013
- 2013-01-14 CN CN 201320016950 patent/CN203048627U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058308A (en) * | 2013-01-14 | 2013-04-24 | 山东中宇环保科技有限公司 | Multi-page rolled type film contactor for removing resolvable gases in water |
| CN103058308B (en) * | 2013-01-14 | 2015-07-08 | 山东中宇环保科技有限公司 | Multi-page rolled type film contactor for removing resolvable gases in water |
| CN108201711A (en) * | 2018-02-09 | 2018-06-26 | 重庆中电大宇卫星应用技术研究所 | A kind of decompression degasser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20160114 |