CN201175650Y - Ceramic hollow fiber oxygen permeable membrane tube component for making oxygen by air separation - Google Patents
Ceramic hollow fiber oxygen permeable membrane tube component for making oxygen by air separation Download PDFInfo
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- CN201175650Y CN201175650Y CNU2007200298425U CN200720029842U CN201175650Y CN 201175650 Y CN201175650 Y CN 201175650Y CN U2007200298425 U CNU2007200298425 U CN U2007200298425U CN 200720029842 U CN200720029842 U CN 200720029842U CN 201175650 Y CN201175650 Y CN 201175650Y
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Abstract
The utility model relates to a tube bundle component of ceramic hollow fiber oxygen permeable membrane for air separation oxygen production The tube bundle component is composed of hollow fiber membrane bundles, a positioning body, an insulating board and a protective cover which are connected in sequence; a plurality of connecting openings are arranged on the upper cover of the membrane bundle positioning body, a heat exchanger is arranged inside the cavity, and an outlet pipe is connected with an oil-free negative pressure source; the insulating board is arranged on the connecting opening, and a penetration opening is arranged to be communicated with the connecting opening; the ceramic hollow fiber oxygen permeable membrane bundles are composed of a plurality of ceramic hollow fiber membranes, the openings are sealed in parallel and fixed inside the joint bodies of the membrane bundles, positioned inside the connecting openings in sequence and communicated with the inside of the cavities of the membrane bundles, and the outer edge of the membrane bundle joint is matched with the inner edge of the connecting opening at intervals; the protective cover is arranged on the insulating board on the upper cover of the membrane bundle positioning body, and the closing ends of the ceramic hollow fiber membrane bundles are covered; an air inlet opening passes through the membrane bundle positioning body and is communicated with the atmosphere, and an air outlet opening passes through the upper cover of the membrane bundle positioning body and enters a high temperature furnace. The tube bundle component has the advantages that the structure is rational, the material is easy to obtain, the preparation is simple and convenient, and the sealing is simple; the operation, the disassembly, and the maintenance are convenient, the cost is low, and the practicability is good.
Description
Technical field
The utility model belongs to the device category with oxygen in the ceramic membrane separation of air, is specifically related to a kind of ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making.
Background technology
High concentration oxygen (>95%) is all used aspect industrial production and environmental protection widely, as steel-making, glass, system Aluminum and power plant (IGCC) or incineration firing processing etc., for air burning, can reduce fuel consumption 60% with oxo.Being used for industrial production can improve output, reduces discharging, reduce cost.Yet at present, making oxygen by air separation is mainly realized by cryogenic rectification or transformation absorption technologies such as (PSA or VSA), complex process, and cost, thus limited its extensive use.And the embrane method making oxygen by air separation can reduce energy consumption greatly, but the oxygen transmission rate of existing organic film is low, but can not be made pure oxygen owing to do not relate to the material phase transformation, moreover the service life of organic film, weak point was unfavorable for reducing production costs.In recent years, research aspect ceramic oxygen-permeable membrane has obtained very big progress, this ceramic membrane is conduct oxygen ions and electronics simultaneously, when there is oxygen concentration gradient in the both sides of film, under 600~1100 ℃ hot conditions, oxygen molecule is dissociated into oxonium ion and electronics at a side surface of film, oxonium ion and electronics are common through behind this film under the motive force effect of concentration difference, discharge at the opposite side surface of film reorganization formation oxygen, therefore, oxygen can see through the side that film arrives low concentration from high concentration one side under the situation that does not have electrode and external circuit, thereby forms stable Oxygen Flow.Compare with other oxygenerating technology, the system oxygen speed of ceramic membrane fast (be 103~104 times of organic film, be cryogenic rectification or PSA 200 times) can obtain 100% pure oxygen, system oxygen cost low (hanging down 30~50% than traditional cryogenic rectification or PSA method); The advantage of mechanical strength height, good corrosion resistance can be operated under rigorous environment; Technology and simple to operate is particularly suitable for using the oxygen environment on a small scale, has very vast market prospect.
Early stage oxygen permeable ceramic film is chip or plank frame mostly, available oxygen permeation membrane area is very little on the one hand for it, because film thickness is big, causes oxygen transmission rate little on the other hand, connectivity problem between elevated-temperature seal simultaneously and the ceramic membrane also is difficult to solve, and therefore is not suitable for production application.
Though tubular ceramic membrane is easier to mutually the problem that solves film-strength, elevated-temperature seal and be connected, the membrane area that provides in the unit volume is still limited, and big because of the tubular ceramic membrane system bulk, oxygen yield is little, also is difficult to satisfy industrial production requirement.
In recent years, people had developed the ceramic hollow fibrous membrane technology of preparing, and this oxygen flow ceramic hollow fibrous membrane has advantages such as film thickness is low, oxygen transmission rate is high, membrane area/volume ratio is big, and condition that provides of applying of ceramic membrane making oxygen by air separation technology is provided for this.Yet the fragility of ceramic hollow fibrous membrane is big, and intensity is low, and adding needs strict elevated-temperature seal, therefore is assembled into membrane module and making oxygen by air separation systematic comparison difficulty, and this heavy industrialization that has limited ceramic oxygen-permeable membrane is used.
The utility model content
Goal of the invention of the present utility model is a kind of ceramic doughnut oxygen permeation membrane assembly that is used for air-separating oxygen-making of research, and high efficiency, low cost are provided, and the ceramic doughnut oxygen permeation membrane tube bank that technical application is good is used for the technology of air-separating oxygen-making.
The technical solution of the utility model is: develop a kind of ceramic doughnut oxygen permeation membrane assembly that is used for air-separating oxygen-making, it is characterized in that: described assembly is settled body 4 by hollow fiber membrane bundle, and thermal insulation board 8 protective covers 22 connect formation successively; Wherein:
A. the film bundle settles the loam cake of body 4 that a plurality of birdsmouths 13 are set, and in the chamber of film bundle arrangement body 4 heat exchanger 3 is set, and the film bundle settles the outlet 7 of body 4 to connect no oily negative pressure source;
B. the thermal insulation board 8 of refractory material be arranged on birdsmouth 13 above, be provided with birdsmouth 13 the same number of through holes and birdsmouth 13 and connect;
C. many ceramic doughnut oxygen permeation membranes are formed ceramic doughnut oxygen permeation membrane bundle 1, opening one end of film bundle 1 passes film bundle joint 2, sealing is positioned in film bundle joint 2 bodies side by side, the openend 12 of film bundle 1 stretch out film bundle joint 2 external with communicate in the film bundle is settled body 4 chambeies, film bundle joint 2 is placed in the birdsmouth 13 one by one, the outer rim of film bundle joint 2 and birdsmouth 13 inner edge matched in clearance;
D. the protective cover of high temperature resistant material (22) be arranged on thermal insulation board 8 above, cover the closing end 12 of ceramic hollow fibrous membrane bundle 1, protective cover is placed in the loam cake that the film bundle is settled body;
The above-mentioned ceramic doughnut oxygen permeation membrane assembly that is used for air-separating oxygen-making is characterized in that the ceramic doughnut oxygen permeation membrane of the ceramic doughnut oxygen permeation membrane of described composition bundle 1, is set to the structure of end sealing other end opening.
The above-mentioned ceramic doughnut oxygen permeation membrane tread assembly that is used for air-separating oxygen-making is characterized in that described ceramic doughnut oxygen permeation membrane, and its tube wall is asymmetric composite construction, skin is a separating layer, internal layer is a supporting layer, and separating layer thickness is 1~100 μ m, and supporting layer thickness is 50~1000 μ m.
The above-mentioned ceramic doughnut oxygen permeation membrane assembly that is used for air-separating oxygen-making is characterized in that the outer rim of described film bundle joint 2 and birdsmouth 13 inner edge matched in clearance are threaded engagement.
The above-mentioned ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making is characterized in that the outer rim of described film bundle joint 2 is that socket joint cooperates with birdsmouth 13 inner edge matched in clearance.
The above-mentioned ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making is characterized in that the intermarginal elastic washers that are provided with in the outer rim of described film bundle joint 2 and the birdsmouth 13.
The utility model has the advantages that:
1. the film tread assembly is rational in infrastructure, and concentration polarization is little in the loading density height of film bundle, assembly;
2. be easy to sealing, the hollow fiber membrane bundle joint can be realized sealing with anti-200~500 ℃ high temperature organic or inorganic sealant;
3. used material is easy to get, and prepares easy; Dismounting and convenient operating maintenance, cost is low, and technical application is good.
4. be convenient to realize the heat exchange between feeding air and product oxygen, capable of reducing energy consumption.
5. applied widely, can be used for the making oxygen by air separation system of different oxygen yields as required, have vast market prospect.
Description of drawings
Fig. 1 is a ceramic doughnut oxygen permeation membrane assembly overall structure schematic diagram of the present utility model;
Fig. 2 is ceramic doughnut oxygen permeation membrane bundle of the present utility model and joint mated condition schematic diagram;
Fig. 3 is ceramic doughnut oxygen permeation membrane bundle of the present utility model and joint sealing view;
Fig. 4 is the structural pipe wall schematic diagram of ceramic doughnut oxygen permeation membrane;
Fig. 5 is a birdsmouth structural representation of settling body; (cross section)
Fig. 6 settles view behind the birdsmouth assembling ceramic doughnut oxygen permeation membrane bundle of body.
The specific embodiment
Show 1 doughnut ceramic oxygen-permeable membrane bundle among Fig. 1; 2 film bundle joints; 3 heat exchangers; 4 film bundles are settled body; 5 air intakes; 6 air outlet slits; 7 film bundles are settled body outlet (oxygen outlet); 8 thermal insulation boards; 19 film bundles are settled the body loam cake; 20 film bundles are settled the body bottom; 21 high-temperature burner hearths; 22 protective covers; The outlet of 23 tail gas.
Show 10 airtight and watertight paddings among Fig. 2; 11 doughnut ceramic oxygen-permeable membrane openends; 12 doughnut ceramic oxygen-permeable membrane blind ends; 13 birdsmouths; 19 film bundles are settled the loam cake of body; All the other labels are the same.
Show ceramic doughnut oxygen permeation membrane bundle and the joint sealing state that amplifies among Fig. 3, label is the same.
The structural pipe wall that shows ceramic doughnut oxygen permeation membrane among Fig. 4,14 tube chambers; 15 inwall porous support layers; 16 intermediate layers; 17 outer wall compacted zones (effectively separating layer).
The schematic cross section that shows film bundle arrangement body loam cake among Fig. 5, the through hole of 18 birdsmouths 13; All the other labels are the same.
Show the schematic top plan view of film bundle arrangement body loam cake among Fig. 6, label is the same.
Applicating example:
Many fine and close doughnut ceramic oxygen-permeable membrane bundles 1 with preparation, be sealed in the doughnut ceramic oxygen-permeable membrane bundle joint 2 with organic elevated-temperature seal agent 10, under the organic elevated-temperature seal agent of the used sealant normal temperature certain flowability is arranged, and can bear 300~500 ℃ temperature; Film bundle joint 2 is fixedly connected on the hollow membrane bundle again and settles in the hollow membrane bundle joint birdsmouth 13 of body 4 loam cakes 19, when the outer rim of film bundle joint 2 and birdsmouth 13 inner edge gaps were threaded engagement, the employing stainless steel was threaded and seals; If the outer rim of film bundle joint 2 and birdsmouth 13 inner edge gaps are socket joints when cooperating, then can adopt the interchangeable ground connection and seal.
Hollow membrane bundle birdsmouth 13 is complementary with hollow-fibre membrane film bundle joint 2, can conveniently connect and seal.Hollow membrane bundle birdsmouth 13 is symmetrically distributed in the hollow membrane bundle and settles on the body loam cake 19, and the required distance between each birdsmouth 13 is as far as possible little, but must be convenient to the dismounting and the installation of hollow membrane bundle joint, is generally 3~10mm.
During making oxygen by air separation, doughnut ceramic oxygen-permeable membrane assembly is placed the lower end of high-temperature electric resistance furnace, and membrane module is connected to an oilless vacuum pump, is heated to 800~1100 ℃, open vavuum pump and make the hollow membrane bundle settle the interior pressure of body less than 0.2 atmospheric pressure, the gas of extracting out from vavuum pump is purity oxygen like this.The size of oxygen output also can settle the vacuum in the body 4 and the temperature of electric furnace control by regulating the hollow membrane bundle except depending primarily on what of hollow fiber film tube.
Through on probation, containing 4~20 diameters with one is Φ 2mm, length is that La0.6Sr0.4Co0.2Fe0.8O3-α (being called for short a LSCF) hollow fiber membrane bundle joint and the metal hollow membrane bundle of 40cm settles body to form hollow fiber film assembly, is under the condition of 98kPa at 1050 ℃ with vacuum, and system oxygen speed is 80cm
3/ min calculates by actual oxygen permeation membrane pipe area, and the saturating amount of its oxygen is 3.64mL/cm
2.min, calculate by this, contain the membrane module of 500 LSCF hollow fiber film tubes, its oxygen production capacity can reach 5.71L/min, or per hour oxygen output is 0.34m
3This film tread assembly adopts silicone rubber sealant, has reached good sealing effectiveness; Can easily regulate the hollow membrane filling density of getting one's things ready as required effectively, installation, dismounting and replacing safeguard that the film pipe is quite convenient.
Claims (6)
1. ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making, it is characterized in that: described assembly is settled body (4) by hollow fiber membrane bundle, and thermal insulation board (8) protective cover (22) connects formation successively; Wherein:
A. the film bundle settles the loam cake of body (4) that a plurality of birdsmouths (13) are set, and in the chamber of film bundle arrangement body (4) heat exchanger (3) is set, and the film bundle settles the outlet (7) of body (4) to connect no oily negative pressure source;
B. the thermal insulation board of refractory material (8) be arranged on birdsmouth (13) above, be provided with the same number of through hole of birdsmouth (13) and birdsmouth (13) and connect;
C. many ceramic doughnut oxygen permeation membranes are formed ceramic doughnut oxygen permeation membrane bundle (1), opening one end of film bundle (1) passes film bundle joint (2), sealing is positioned in film bundle joint (2) body side by side, the openend (12) of film bundle (1) stretch out film bundle joint (2) external with communicate in the film bundle is settled body (4) chamber, film bundle joint (2) is placed in the birdsmouth (13) one by one, the outer rim of film bundle joint (2) and birdsmouth (13) inner edge matched in clearance;
D. the protective cover of high temperature resistant material (22) be arranged on thermal insulation board (8) above, cover the closing end (12) of ceramic hollow fibrous membrane bundle (1), protective cover is placed in the loam cake that the film bundle is settled body;
E. heat exchanger (3) is arranged in tube bank arrangement body (4) chamber, and air intake (5) passes the film bundle and settles body (4) bottom to connect atmosphere, and air outlet slit (6) passes the film bundle and settles the loam cake and the thermal insulation board (8) of body (4) to enter in the high-temperature burner hearth (21).
2. according to the described ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making of claim 1, it is characterized in that the ceramic doughnut oxygen permeation membrane of the ceramic doughnut oxygen permeation membrane of described composition bundle (1), be set to the structure of end sealing other end opening.
3. according to the described ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making of claim 2, it is characterized in that described ceramic doughnut oxygen permeation membrane, its tube wall is asymmetric composite construction, skin is that the separating layer internal layer is a supporting layer, separating layer thickness is 1~100 μ m, and supporting layer thickness is 50~1000 μ m.
4. according to the described ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making of claim 1, it is characterized in that the outer rim of described film bundle joint (2) and birdsmouth (13) inner edge matched in clearance are threaded engagement.
5. according to the described ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making of claim 1, it is characterized in that the outer rim of described film bundle joint (2) is that socket joint cooperates with birdsmouth (13) inner edge matched in clearance.
6. according to the described ceramic doughnut oxygen permeation membrane tube bundle assembly that is used for air-separating oxygen-making of claim 1, it is characterized in that the outer rim and the interior intermarginal elastic washer that is provided with of birdsmouth (13) of described film bundle joint (2).
Priority Applications (1)
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CNU2007200298425U CN201175650Y (en) | 2007-10-24 | 2007-10-24 | Ceramic hollow fiber oxygen permeable membrane tube component for making oxygen by air separation |
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CNU2007200298425U CN201175650Y (en) | 2007-10-24 | 2007-10-24 | Ceramic hollow fiber oxygen permeable membrane tube component for making oxygen by air separation |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102580478A (en) * | 2012-03-20 | 2012-07-18 | 南京工业大学 | Integrated tubular ceramic oxygen permeating membrane separation reactor |
CN107339177A (en) * | 2017-09-03 | 2017-11-10 | 淄博长宝新材料股份有限公司 | A kind of steamer pure oxygen burning high-performance device |
CN107485980A (en) * | 2017-09-04 | 2017-12-19 | 淄博长宝新材料股份有限公司 | A kind of aircraft internal combustion engine pure oxygen burning device |
CN107890783A (en) * | 2017-12-15 | 2018-04-10 | 天津工业大学 | A kind of metallic nickel hollow fiber film assembly and preparation method thereof and the method using its separation hydrogen |
-
2007
- 2007-10-24 CN CNU2007200298425U patent/CN201175650Y/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102580478A (en) * | 2012-03-20 | 2012-07-18 | 南京工业大学 | Integrated tubular ceramic oxygen permeating membrane separation reactor |
CN107339177A (en) * | 2017-09-03 | 2017-11-10 | 淄博长宝新材料股份有限公司 | A kind of steamer pure oxygen burning high-performance device |
CN107485980A (en) * | 2017-09-04 | 2017-12-19 | 淄博长宝新材料股份有限公司 | A kind of aircraft internal combustion engine pure oxygen burning device |
CN107890783A (en) * | 2017-12-15 | 2018-04-10 | 天津工业大学 | A kind of metallic nickel hollow fiber film assembly and preparation method thereof and the method using its separation hydrogen |
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Granted publication date: 20090107 |
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CX01 | Expiry of patent term |