CN1074837A - Film-type gas distributor - Google Patents
Film-type gas distributor Download PDFInfo
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- CN1074837A CN1074837A CN 92100592 CN92100592A CN1074837A CN 1074837 A CN1074837 A CN 1074837A CN 92100592 CN92100592 CN 92100592 CN 92100592 A CN92100592 A CN 92100592A CN 1074837 A CN1074837 A CN 1074837A
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Abstract
A kind of film-type gas distributor belongs to chemical separating and consersion unit field, is made up of surface treated microporous barrier, connector, flange and air inlet.Film is fixed on the connector, and links together with flange, and the space between film and the connector constitutes the air inlet chamber, and whole film-type gas distributor can link to each other with gas-liquid contanct equipment easily by flange.Utilize the present invention can obtain tiny and uniform bubble, improve the Gas-Liquid Dispersion situation in the gas-liquid contanct equipment, strengthen mass transfer ability between gas-liquid, can be issued to higher mass transfer ability in lower energy consumption.
Description
The present invention is a kind of film-type gas distributor, is specifically related to the gas distributor in the applied various gas-liquid contanct equipments in Chemical Manufacture and other field.Belong to chemical separating and consersion unit field.
In Chemical Manufacture and other field, as medium, have many gas-liquid contanct equipments in GAS ABSORPTION, gas-liquid reaction process, in these gas-liquid contanct equipments, the dissolving of gas in liquid phase with transmit the production capacity that is usually restricting whole process.Therefore developed multi-form gas distributor,, strengthened mass transfer ability between its gas-liquid to improve the Gas-Liquid Dispersion situation in the gas-liquid contanct equipment.Present widely used gas distributor mainly is sieve plate and nozzle.The sieve plate gas distributor is meant the hole that is drilled with by certain regularly arranged a certain size on a flat board, generally be that the aperture is not less than 0.5mm usually by mechanical means processing.Though this gas distributor is simple in structure, but the bubble that uses this distributor to generate is bigger, diameter is generally about 1cm, thereby the gas-liquid interphase mass transfer specific area in the air-flow contact arrangement is low when using this gas distributor, and this has just limited the alternate mass transfer ability of gas-liquid of equipment.The nozzle distributor can have different structures, passes through nozzle but basic principle all is gas or gas-liquid two-phase under high speed, and rapid mutually disturbance reaches the purpose of Gas-Liquid Dispersion by gas-liquid.Though use this distributor can obtain reasonable Gas-Liquid Dispersion effect, owing to must make gas phase or gas-liquid two-phase at a high speed by nozzle, so operation energy consumption is also than higher.
Purpose of the present invention is developed a kind of new gas distributor exactly, utilize this distributor to obtain tiny and uniform bubble, and improve Gas-Liquid Dispersion situation in the gas-liquid contanct equipment, strengthen the gas-liquid mass transfer ability, thereby be issued to higher mass transfer ability in lower energy consumption.
The present invention is a kind of film-type gas distributor, form by surface treated microporous barrier, connector, flange and air inlet, film is fixed on the connector, and link together with flange, space between film and the connector constitutes the air inlet chamber, and whole film-type gas distributor can link to each other with gas-liquid contanct equipment easily by flange.Said microporous barrier can be a metal film, also can be polymeric membrane, can be tubular film, also can be flat sheet membrane, and micropore diameter is preferably 0.1 to 10 micron.
Describe the present invention now.Fig. 1 is the structure chart of film-type gas distributor of the present invention.1 is microporous barrier as the distribution of gas medium among the figure, and 2 for being used to install and the fixing connector of film, and its shape, specification should design according to selected film; 3 is flange, is used for being connected with gas-liquid contanct equipment; 4 is air inlet.The inboard of film constitutes air inlet chamber 5 with connector.Gas enters air inlet chamber 5 by air inlet 4 during use, and the micropore by film 1 under certain pressure forms tiny and uniform bubble and enters gas-liquid contanct equipment.The material, the specification that are used to make parts such as connector, flange can be selected according to practical application, constitute dissimilar film-type gas distributors, to be adapted to various gas-liquid contanct equipments.Because film-type gas distributor adopts the very little membrane material in aperture as the distribution of gas medium, gas is bigger by resistance ratios.Therefore the membrane material that is used to make film-type gas distributor must pass through surface treatment, to reduce gas by resistance, the reduction operation energy consumption.
Fig. 2 is the structure chart of one embodiment of the present of invention.This embodiment adopts 4 surface treated tubular metal microporous barriers altogether, constitutes the multitube film-type gas distributor.6 is the tubular metal microporous barrier among the figure, and this embodiment has designed center air inlet chamber 9 and 10 two air inlet chambers of annular space air inlet chamber.Corresponding to center air inlet chamber, use a tubulose microporous barrier; Use three tubulose microporous barriers corresponding to annular space air inlet chamber, become 120 degree to each other.Because this embodiment designed center and two air inlet chambers of annular space, thus its gas both can be the time from inlet chamber chamber, center, gas in the time of also can be from annular space air inlet chamber; Center gas lift and annular space gas lifting type loop reactor can be respectively applied for, also bubbling reactor can be used for.7 is connector among the figure; 8 is flange; 11 is the center air inlet; 12 is the annular space air inlet.
Fig. 3 is an another embodiment of the present invention.13 is surface treated flat metal microporous barrier among the figure, for this flat sheet membrane, it can be connect with connector 14 and flange 15 welded together.This embodiment has also designed center air inlet chamber 16 and annular space air inlet chamber 17, and to embodiment illustrated in fig. 2 similar, this embodiment can be used for the center gas lift type common loop reactor, annular space gas lifting type loop reactor and bubbling reactor.18 is the center air inlet, and 19 is the annular space air inlet.
Fig. 4 is an another embodiment of the present invention, and this embodiment selects for use the surface treated polyester core pore membrane 21 of aperture homogeneous as the distribution of gas medium, because membrane material itself is thinner, so both sides are supported with screen cloth 20 and sieve plate 22 respectively up and down.23 is flange among the figure; 24 is connector; 25 are the air inlet chamber; 26 is air inlet.
The present invention produces a desired effect.For several embodiment of the present invention, in multi-form gas-liquid contanct equipment, its Gas-Liquid Dispersion performance and mass transfer ability are detected respectively, the result proves and uses film-type gas distributor of the present invention can obtain tiny and uniform bubble really, thereby improve the Gas-Liquid Dispersion effect in the gas-liquid contanct equipment, strengthen the gas-liquid mass transfer ability.
Generate the bubble size when adopting the laser particle size measurer and measure, prove and use film gas distributor can obtain tiny bubble the use film-type gas distributor.For example use the aperture be 3 microns nucleopore membranes as the prepared film-type gas distributor of distribution of gas medium, when gas phase is an air, when liquid phase was water, the bubble diameter that is generated was between 200～500 microns, mean air bubble diameter only is 360 microns.If liquid phase is other less liquid of surface tension, then the bubble of Sheng Chenging is littler.Compare with existing other types of gases distributor, the essential characteristic of film-type gas distributor of the present invention is to use the very little membrane material in aperture as the distribution of gas medium.Gas enters in the gas-liquid contanct equipment by the micropore formation bubble of film.Because the membrane material aperture is very little, thereby gas is by the via hole high cycle speed of micropore, and this makes that on the one hand the gas momentum is big, thereby makes that the gas momentum has the effect of can not ignore in influencing the various influence factors that bubble forms, grows up, breaks away from; Make also on the other hand that bubble forms, grows up, in the detach procedure near the aperture disturbance of gas-liquid phase strengthen.This two aspect all makes bubble easier of the aperture disengaging, thereby forms tiny bubble.
Gas holdup in different gas-liquid contanct equipments when using several different embodiment of the present invention, volume transmission quality coefficient, parameters such as gas-liquid mass transfer specific area are measured, and with same gas-liquid contanct equipment in when using common sieve plate or nozzle distributor the gained result compare.Experimental result proves, even be easy to the air-aqueous systems of coalescence for bubble, uses film-type gas distributor of the present invention still can make the gas holdup in the gas-liquid contanct equipment improve 50～100%, and volume transmission quality coefficient improves 100～200%.Adopt sodium sulfite oxidation process to measure the gas-liquid mass transfer specific area, compare, use film-type gas distributor of the present invention can make the gas-liquid mass transfer specific area improve more than ten times with the plain nozzle distributor.The superior function key of film-type gas distributor of the present invention is to use film as the distribution of gas medium, has formed tiny and uniform bubble.Reducing of bubble diameter, increased gas-liquid mass transfer specific area in the equipment, and bubble time of staying in gas-liquid contanct equipment is prolonged, made that gas-liquid flows more even mutually in the gas-liquid contanct equipment, thereby help improving gas holdup, strengthen the gas-liquid interphase mass transfer ability.
For confirming the applicability of film-type gas distributor of the present invention in practical systems, in sodium sulfite oxidation and penicillin fermentation system, use film-type gas distributor to study respectively.Under catalyst (Co) effect, the sodium sulfite oxidation reaction is a quick irreversible reaction, and its reaction rate is bullied, and mass transfer rate restricts between liquid phase.Film-type gas distributor of the present invention is used for Airlift circulating reactor, has measured the oxygen uptake rate of sodium sulfite oxidation reaction system, and with same reactor in experimental result when using plain nozzle compare.The result proves and uses film-type gas distributor of the present invention can make oxygen uptake rate improve 3～10 times.Penicillin fermentation is a typical aerobe reaction system, and the dissolving of oxygen in zymotic fluid is one of key factor of this fermentation system productive rate of restriction and product quality with transmitting.To traditional stirred-tank fermenter, only add a film-type gas distributor of the present invention, just can make oxygen mass transfer coefficient raising 35～50% in the sweat.
Because the aperture of the membrane material of manufacturing film-type gas distributor is very little, pass through resistance in order to reduce gas, analyze by the various factors of the pressure drop of membrane material influencing gas by experiment, proof is full of liquid because capillarity makes in the micropore of film, thereby causes gas to increase by resistance.Must pass through surface treatment so be used to make the membrane material of film distributor, enter the micropore of film, reduce aeration resistance to prevent liquid.
Claims (10)
1, a kind of film-type gas distributor, it is characterized in that forming by surface treated microporous barrier, connector, flange and air inlet, film is fixed on the connector, and link together with flange, space between film and the connector constitutes the air inlet chamber, and whole film-type gas distributor can link to each other with gas-liquid contanct equipment easily by flange.
2, according to the said film-type gas distributor of claim 1, the aperture that it is characterized in that said microporous barrier is 0.1～10 micron.
3,, it is characterized in that said microporous barrier is a metal film according to claim 1 and 2 said film-type gas distributors.
4,, it is characterized in that said microporous barrier is a polymeric membrane according to claim 1 and 2 said film-type gas distributors.
5,, it is characterized in that said microporous barrier is the tubular metal film according to claim 1 and 2 said film-type gas distributors.
6,, it is characterized in that said microporous barrier is the planar metal film according to claim 1 and 2 said film-type gas distributors.
7,, it is characterized in that said microporous barrier is the polyester core pore membrane according to claim 1 and 2 said film-type gas distributors.
8, a kind of film-type gas distributor, it is characterized in that forming by surface treated 4 tubular metal microporous barriers, connector, flange and center air inlet and annular space air inlet, space between central tubular metal micro-holes film and the corresponding connector constitutes center air inlet chamber, other three tubular metal microporous barriers become to each other 120 degree and and corresponding connector between the space constitute annular space air inlet chamber, whole film-type gas distributor can link to each other with gas-liquid contanct equipment easily by flange.
9, a kind of film-type gas distributor, it is characterized in that by surface treated flat metal microporous barrier, connector, flange and center air inlet and annular space air inlet are formed, space between flat metal microporous barrier and the connector constitutes center air inlet chamber and annular space air inlet chamber, and whole film-type gas distributor can link to each other with gas-liquid contanct equipment easily by flange.
10, a kind of film-type gas distributor, it is characterized in that forming by surface treated polyester core pore membrane, connector, flange and air inlet, polyester core pore membrane both sides up and down supports with screen cloth and sieve plate respectively, and and connector between the space constitute the air inlet chamber, whole film-type gas distributor can link to each other with gas-liquid contanct equipment easily by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100592 CN1074837A (en) | 1992-01-31 | 1992-01-31 | Film-type gas distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92100592 CN1074837A (en) | 1992-01-31 | 1992-01-31 | Film-type gas distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1074837A true CN1074837A (en) | 1993-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100592 Pending CN1074837A (en) | 1992-01-31 | 1992-01-31 | Film-type gas distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1074837A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102160983A (en) * | 2011-03-18 | 2011-08-24 | 温州市东瓯微孔过滤有限公司 | Microscopic bubble reacting device |
| CN103555560A (en) * | 2013-10-28 | 2014-02-05 | 南京工业大学 | Device and method for preparing butanol through fermentation, coupling, separation and purification of acetone-butanol |
| CN106958591A (en) * | 2017-04-22 | 2017-07-18 | 嘉兴市禾兴自润轴承开发有限公司 | A kind of processing technology of self-lubricating bearing |
| CN107638778A (en) * | 2017-09-28 | 2018-01-30 | 华夏碧水环保科技有限公司 | One kind spray odor removal |
| CN109745926A (en) * | 2019-02-22 | 2019-05-14 | 杭州科斯玛膜科技有限公司 | A kind of precise filtering device of small-sized gas phase liquid phase hybrid reaction |
| CN112973614A (en) * | 2021-02-10 | 2021-06-18 | 中国科学院过程工程研究所 | Gas-liquid reaction device, and use method and application thereof |
| CN113117608A (en) * | 2020-01-15 | 2021-07-16 | 石家庄波特无机膜分离设备有限公司 | Sintered metal microporous gas distributor for strengthening mass transfer |
| CN114345248A (en) * | 2022-02-22 | 2022-04-15 | 大连中沐化工有限公司 | Plate-type gas-liquid reaction device for synthesis of polyphenyl ether |
-
1992
- 1992-01-31 CN CN 92100592 patent/CN1074837A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102160983A (en) * | 2011-03-18 | 2011-08-24 | 温州市东瓯微孔过滤有限公司 | Microscopic bubble reacting device |
| CN103555560A (en) * | 2013-10-28 | 2014-02-05 | 南京工业大学 | Device and method for preparing butanol through fermentation, coupling, separation and purification of acetone-butanol |
| CN103555560B (en) * | 2013-10-28 | 2014-10-29 | 南京工业大学 | Device and method for preparing butanol through fermentation, coupling, separation and purification of acetone-butanol |
| CN106958591A (en) * | 2017-04-22 | 2017-07-18 | 嘉兴市禾兴自润轴承开发有限公司 | A kind of processing technology of self-lubricating bearing |
| CN106958591B (en) * | 2017-04-22 | 2019-06-18 | 嘉兴市禾兴自润轴承开发有限公司 | A kind of processing technology of self-lubricating bearing |
| CN107638778A (en) * | 2017-09-28 | 2018-01-30 | 华夏碧水环保科技有限公司 | One kind spray odor removal |
| CN107638778B (en) * | 2017-09-28 | 2020-11-20 | 华夏碧水环保科技有限公司 | Spraying deodorization device |
| CN109745926A (en) * | 2019-02-22 | 2019-05-14 | 杭州科斯玛膜科技有限公司 | A kind of precise filtering device of small-sized gas phase liquid phase hybrid reaction |
| CN109745926B (en) * | 2019-02-22 | 2021-08-27 | 杭州科斯玛膜科技有限公司 | Small-size gas-liquid phase mixing reaction's secondary filter equipment |
| CN113117608A (en) * | 2020-01-15 | 2021-07-16 | 石家庄波特无机膜分离设备有限公司 | Sintered metal microporous gas distributor for strengthening mass transfer |
| CN112973614A (en) * | 2021-02-10 | 2021-06-18 | 中国科学院过程工程研究所 | Gas-liquid reaction device, and use method and application thereof |
| CN114345248A (en) * | 2022-02-22 | 2022-04-15 | 大连中沐化工有限公司 | Plate-type gas-liquid reaction device for synthesis of polyphenyl ether |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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