CN205216602U - Be used for absorptive ceramic membrane pipe of membrane - Google Patents
Be used for absorptive ceramic membrane pipe of membrane Download PDFInfo
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- CN205216602U CN205216602U CN201521077333.0U CN201521077333U CN205216602U CN 205216602 U CN205216602 U CN 205216602U CN 201521077333 U CN201521077333 U CN 201521077333U CN 205216602 U CN205216602 U CN 205216602U
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Abstract
The utility model relates to a be used for absorptive ceramic membrane pipe of membrane belongs to ceramic membrane technical field. This ceramic membrane pipe pipe wall is by the supporting layer and covers in the outside rete of supporting layer and constitute, and the supporting layer is inside to form single individual lumen, the equivalent diameter in membrane outside of tubes wall cross -section be 10~15mm, the cross -section equivalent diameter of lumen be 6~9mm. The utility model provides a be used for absorptive ceramic membrane pipe of membrane is suitable for the absorptive industrial process of membrane, and it has intensity height, the loading density is high, the absorption efficiency is high advantage.
Description
Technical field
The utility model relates to a kind of ceramic-film tube absorbed for film, belongs to ceramic membrane technology field.
Background technology
SO
x, CO
x, C
mh
n, NO
xbe the main source of atmosphere pollution, be also one of topmost material of atmosphere pollution, have serious and long-term adverse effect to human health and ecological environment.Along with the mankind are to the pay attention to day by day of atmosphere protection, the mandatory rules of law of dusty gas discharge is also tending towards strict.In air, pollutant is mainly derived from the burning of coal and oil, comprises boiler, steamer, motor vehicle and other combustion processes.
The processing method of atmosphere pollution has traditional post type gas-liquid contact method, this technique is subject to the restriction of the hydrodynamic conditions such as liquid flooding, leakage and entrainment, simultaneously stability liquid radial distribution is uneven, facility floor space is large, it is high to invest, operating cost is high, is all restricted in the application in a lot of field.
Be that the membrane absorption system of core component becomes a kind of new technique with organic film, in flue gas desulfurization, denitration, present superpower competitive advantage.Tianjin Inst. of Sea Water Desalination & Comprehensive Utilization, National Bu has delivered film and has absorbed flue gas desulfurization with seawater, the device of denitration and technique (CN102485320A, CN103331095A); adopt hydrophobic hollow-fibre membrane to achieve the technological requirement of membrane absorption method desulphurization denitration as the interface that film absorbs in patent, the measure such as overtemperature prote, Automated condtrol that simultaneously have employed makes effective operation of device.
Ceramic membrane has high temperature resistant, corrosion-resistant, high strength, anti-oxidant, pore-size distribution is narrow and the advantage such as adjustable, thus the service life of equipment, gas cleaning effect, opereating specification are effectively ensured, absorbs field have broad application prospects at film.
Summary of the invention
The purpose of this utility model is: provide a kind of ceramic-film tube absorbed for film, this film pipe needs to have the advantage that installation strength is good, loading density is high, absorption efficiency is high.
Technical scheme is:
For the ceramic-film tube that film absorbs, its tube wall is made up of supporting layer and the rete that is overlying on supporting layer outside, the single tube chamber of the inner formation of supporting layer; The equivalent diameter in described film pipe outer wall cross section is 10 ~ 15mm, and the cross section equivalent diameter of described tube chamber is 6 ~ 9mm.
Described film pipe and the cross sectional shape of tube chamber are selected from square, hexagon, triangle or circle.
The thickness of described rete is between 5 ~ 100 μm.
Described supporting layer and the porosity ranges of rete between 15 ~ 45%, more preferably 20 ~ 40%.
Described supporting layer and/or the material of rete are selected from carborundum, diatomite, mullite, aluminium oxide, zirconia or titanium oxide.
The average pore size scope of described supporting layer is between 1 ~ 20 μm, and more preferably scope is 3 ~ 10 μm.
The average pore size scope of described rete is between 0.01 ~ 1 μm, and more preferably scope is 0.02 ~ 0.8 μm.
Beneficial effect
The ceramic-film tube absorbed for film that the utility model provides is suitable for the industrial process that film absorbs, intensity is high, loading density is high, absorption efficiency is high advantage that it has.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the ceramic-film tube that the utility model provides.
Fig. 2 is the film absorption test structure drawing of device for testing ceramic-film tube.
Wherein, 1, tube chamber; 2, supporting layer; 3, rete; 4, film pipe; 5, membrane module; 6, liquid bath is absorbed; 7, vavuum pump.
Detailed description of the invention
Embodiment 1 ceramic-film tube structure
The structure of the ceramic-film tube for film absorption that the utility model provides is long tube type, its cross sectional shape as shown in Figure 1, it is a tube chamber 1 in the pipe of film pipe, tube chamber 1 is around formed by supporting layer 2, and be also covered with rete 3 at the skin of supporting layer 2, therefore supporting layer 2 and rete 3 entirety define the outer wall of film pipe.
The cross sectional shape of tube chamber 1 can be selected from square, hexagon, triangle or circle, and the outer wall institute Formation cross-section shape of film pipe also can be selected from these shapes similarly, and the cross section of tube chamber 1 can be identical with the shape in the cross section that the outer wall of film pipe is formed, also can be different.In some cases preferably, preferably two cross sectional shapes are all identical, because of production and processing for convenience; In addition, cross sectional shape preferably adopts circle, guarantee membrane area that can be larger, and is applicable to producing shaped.
About the size of film tube section, in actual applications, find that optimum scope be the equivalent diameter in the cross section that the outer wall of film pipe is formed is 10 ~ 15mm, and the cross section equivalent diameter of tube chamber 1 is 6 ~ 9mm.Equivalent diameter recited above is a kind of account form in equation, and when cross section is not circle, metering diameter is the hydraulic radius of 4 times, and the ratio that hydraulic radius equals net sectional area A and the wetted perimeter L always flowed in cross section is defined as hydraulic radius.And if pipe time, its geometric diameter is its equivalent diameter.Under some preferred conditions, film pipe outer wall and tube chamber cross section is preferably adopted to be all circular film pipes, outer diameter 12mm, lumen wall diameter 8mm.Adopt the membrane structure of such size, when can ensure on the one hand to install, ceramic-film tube has suitable intensity, the words that film pipe is meticulous else if, cause installation strength low, and on the other hand, if its size is excessive, can cause when ceramic-film tube is installed in assembly apparatus, cause loadings too small, device efficiency and cost are improved, such as: when employing cross section is foursquare assembly, film pipe is installed in assembly in parallel to each other, if the length of side in assembly cross section is 0.5m, when spacing between film pipe and film pipe remains 1cm, employing external diameter is that the film pipe of 12mm circular cross-section can install 484, filling area reaches 18.24m
2, and if employing external diameter is the film pipe of the circular cross-section of 20mm, can install 256, its filling area is 16.08m
2.
The effect of rete 3 serves to ensure that gas can enter to the liquid phase side in pipe under suitable partial pressure conditions by fenestra from gas phase side, the thickness of its optimum is between 5 ~ 100 μm, if thickness is less, the durability of rete can be caused not high, if and rete is blocked up, easily cause gas phase drag in running to improve, result in absorption efficiency on the low side.
Described supporting layer and the porosity ranges of rete between 15 ~ 45%, more preferably 20 ~ 40%, if porosity, absorption efficiency can be caused on the low side, and if porosity is bigger than normal, the intensity of film pipe will be on the low side.
Described supporting layer and/or the material of rete are selected from carborundum, diatomite, mullite, aluminium oxide, zirconia or titanium oxide, wherein be specially adapted to supporting layer and/or the rete of aluminium oxide, zirconia and titanium oxide material, because it has good stability.
The average pore size scope of supporting layer is between 1 ~ 20 μm, and more preferably scope is 3 ~ 10 μm, and meanwhile, the average pore size scope of described rete is between 0.01 ~ 1 μm, and more preferably scope is 0.02 ~ 0.5 μm.
Film Absorption and running is tested
The film absorption test apparatus structure that the utility model adopts as shown in Figure 2, be assemblied in assembly by parallel for many ceramic-film tubes as described in Example 1, the cavity that component internal is formed is gas tube side, and the tube chamber 1 of ceramic-film tube is absorbing liquid tube side, the tube chamber 1 of each film pipe 4 is all connected with the absorption liquid bath 6 that absorbing liquid is housed, and the other end of tube chamber 1 is connected on vavuum pump 7, by the negative-pressure ward of vavuum pump 7, absorbing liquid is flowed in tube chamber 1; Meanwhile, the gas containing gas to be absorbed is sent into the gas tube layer of component internal, the rete 3 of easy absorbed air penetrating film pipe contacts with absorbing liquid with supporting layer 1, and then is absorbed.
Test is all tested under different working conditions:
Cavity cross-sectional area in assembly is 1m
2, be provided with 64 ceramic-film tubes altogether, be seen as 8 × 8 arrangements from cross section, film length of tube is 1m.
Working condition is: gas is for containing 20%CO
2and 80%N
2gas, temperature 50 C, gas flow rate 4m
3/ min, gaseous pressure 0.15MPa; The absorbing liquid of tube chamber 1 inside adopts the aqueous solution of 20wt%MEDA, absorbing liquid temperature 30 DEG C, and negative pressure-1000Pa ~ 2000Pa(gauge pressure opened by vavuum pump) between, make the flow velocity of absorbing liquid in pipe be 0.2m/s.
Adopt the porosity 30% of supporting layer and rete, material is all the film pipe of aluminium oxide, the average pore size of supporting layer 20 μm, rete average pore size 200 μm, thicknesses of layers 20 μm, appearance and size: circular, external diameter 12mm, internal diameter 8mm.Through absorption process, sour gas imports and exports concentration slippage 5.44%.
Claims (10)
1. for the ceramic-film tube that film absorbs, it is characterized in that, its tube wall is made up of supporting layer (2) and the rete (3) that is overlying on supporting layer (2) outside, supporting layer (2) the single tube chamber of inner formation (1); The equivalent diameter in described film pipe outer wall cross section is 10 ~ 15mm, and the cross section equivalent diameter of described tube chamber (1) is 6 ~ 9mm.
2. the ceramic-film tube absorbed for film according to claim 1, is characterized in that: the cross sectional shape of described film pipe and tube chamber (1) is selected from square, hexagon, triangle or circle.
3. the ceramic-film tube absorbed for film according to claim 1, is characterized in that: the thickness of described rete (3) is between 5 ~ 100 μm.
4. the ceramic-film tube absorbed for film according to claim 1, is characterized in that: described supporting layer (2) and the porosity ranges of rete (3) are between 15 ~ 45%.
5. the ceramic-film tube absorbed for film according to claim 4, is characterized in that: described supporting layer (2) and the porosity ranges of rete (3) are between 20 ~ 40%.
6. the ceramic-film tube absorbed for film according to claim 1, is characterized in that: described supporting layer (2) and/or the material of rete (3) are selected from carborundum, diatomite, mullite, aluminium oxide, zirconia or titanium oxide.
7. the ceramic-film tube absorbed for film according to claim 1, is characterized in that: the average pore size scope of described supporting layer (2) is between 1 ~ 20 μm.
8. the ceramic-film tube absorbed for film according to claim 7, is characterized in that: the average pore size scope of described supporting layer (2) is between 3 ~ 10 μm.
9. the ceramic-film tube absorbed for film according to claim 1, is characterized in that: the average pore size scope of described rete (3) is between 0.01 ~ 1 μm.
10. the ceramic-film tube absorbed for film according to claim 9, is characterized in that: the average pore size scope of described rete (3) is between 0.02 ~ 0.5 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521077333.0U CN205216602U (en) | 2015-12-22 | 2015-12-22 | Be used for absorptive ceramic membrane pipe of membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521077333.0U CN205216602U (en) | 2015-12-22 | 2015-12-22 | Be used for absorptive ceramic membrane pipe of membrane |
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| Publication Number | Publication Date |
|---|---|
| CN205216602U true CN205216602U (en) | 2016-05-11 |
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|---|---|---|---|
| CN201521077333.0U Active CN205216602U (en) | 2015-12-22 | 2015-12-22 | Be used for absorptive ceramic membrane pipe of membrane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106563359A (en) * | 2016-07-19 | 2017-04-19 | 江苏久吾高科技股份有限公司 | Thin-wall ceramic membrane tube applied to membrane absorption process, membrane adsorption method and application thereof |
| CN106732641A (en) * | 2016-11-14 | 2017-05-31 | 江苏省陶瓷研究所有限公司 | A kind of new ceramic-film tube with catalysis and preparation method thereof |
| CN106731806A (en) * | 2016-12-29 | 2017-05-31 | 江苏久吾高科技股份有限公司 | A kind of cross-current type ceramics film device and method of denitration for gas denitration |
| CN108722204A (en) * | 2018-06-12 | 2018-11-02 | 山东华恩新材料科技有限公司 | A kind of tubular type silicon carbide nano ceramics filter core and preparation method thereof |
| CN109758896A (en) * | 2019-03-18 | 2019-05-17 | 山东交通学院 | A kind of marine exhaust sea water desulfuration membrane contactor |
-
2015
- 2015-12-22 CN CN201521077333.0U patent/CN205216602U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106563359A (en) * | 2016-07-19 | 2017-04-19 | 江苏久吾高科技股份有限公司 | Thin-wall ceramic membrane tube applied to membrane absorption process, membrane adsorption method and application thereof |
| CN106732641A (en) * | 2016-11-14 | 2017-05-31 | 江苏省陶瓷研究所有限公司 | A kind of new ceramic-film tube with catalysis and preparation method thereof |
| CN106732641B (en) * | 2016-11-14 | 2019-09-20 | 江苏省陶瓷研究所有限公司 | A kind of novel ceramic-film tube and preparation method thereof with catalysis |
| CN106731806A (en) * | 2016-12-29 | 2017-05-31 | 江苏久吾高科技股份有限公司 | A kind of cross-current type ceramics film device and method of denitration for gas denitration |
| CN108722204A (en) * | 2018-06-12 | 2018-11-02 | 山东华恩新材料科技有限公司 | A kind of tubular type silicon carbide nano ceramics filter core and preparation method thereof |
| CN109758896A (en) * | 2019-03-18 | 2019-05-17 | 山东交通学院 | A kind of marine exhaust sea water desulfuration membrane contactor |
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