CN101036848A - Gas absorption purifier - Google Patents

Gas absorption purifier Download PDF

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Publication number
CN101036848A
CN101036848A CN 200710020017 CN200710020017A CN101036848A CN 101036848 A CN101036848 A CN 101036848A CN 200710020017 CN200710020017 CN 200710020017 CN 200710020017 A CN200710020017 A CN 200710020017A CN 101036848 A CN101036848 A CN 101036848A
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CN
China
Prior art keywords
liquid
gas
tower
inlet
gas absorption
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CN 200710020017
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Chinese (zh)
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CN100482320C (en
Inventor
袁惠新
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江苏工业学院
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Priority to CNB2007100200173A priority Critical patent/CN100482320C/en
Publication of CN101036848A publication Critical patent/CN101036848A/en
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Publication of CN100482320C publication Critical patent/CN100482320C/en

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Abstract

The invention relates to a gas purifying device, which is a vertical drum-type equipment, on the top thereof are arrange a gas collection chamber and a gas outlet, and a liquid collection chamber and a liquid outlet are arranged on the bottom of the gas purifying device, a main chamber is provided between the gas collection chamber and the liquid collection chamber, on the upper part of the main chamber is arranged a mist eliminator, a gas tangential inlet is arranged on the lower part of the main chamber near to the liquid chamber, and an absorption liquid inlet is provided below the mist eliminator. In the main chamber, a group of fluid directors are coaxially arranged in a certain space. The leakage between the fluid directors and the tower inner wall can be reduced maximally via the outer rings on the fluid directors. After the gas to be treated enters the tower via the gas inlet, it rotates and runs up simultaneously. The absorption liquid injected via the liquid inlet has a contact with the rising rotary gas flow, and the absorption liquid can form liquid film, liquid silk, and liquid drop to under turbulent shearing action of swirling flow field, which makes gas and liquid have a sufficient contact; and because of the fast gas-liquid relative velocity and great turbulent degree, the invention is provided with high gas-liquid mass transfer rate and good absorption effect.

Description

A kind of gas absorption purifier

Technical field

The present invention relates to gas purifying equipment, refer in particular to a kind of device that is used to utilize cyclone technique reinforcement gas absorption separation.

Background technology

By retrieval, patent of invention 200410074338.8 purifying and separating device for eddy gas are arranged, cyclone is used for producing eddy flow, after connect separator tube, promptly cyclone pipe is separated the condensate liquid in the gas, cyclone technique of no use is strengthened the absorption and separation process.

Utility model patent 94230343.1 dust-removing desulfurating apparatus, the flue gas that is attracted by chimney forms swirling eddy behind cyclone, flow to by the absorption liquid of nozzle atomization in flue, reaches the purpose of absorption cleaning.The cyclone here is actually an air deflector, only plays the effect that produces eddy flow.

Utility model patent 98239353.9 Ceramic desulfation devices, flue gas together enters the abundant blended absorbent of cyclone through the slow down water of back and the inside of deceleration blender, after the expansion joint centrifugation.Though have a plurality of cyclones and expansion to connect, because absorption liquid for once contacts with gas, so in fact have only a theoretical absorption level, absorption efficiency is limited.

Utility model patent 98219685.7 Wet-type high-efficient desulfation dust-extraction devices, flue gas are gone into king-tower through Venturi tube is laggard, contact, mix with the multilayer liquid film that cyclone in being installed in king-tower forms.The absorption liquid of considerable part arrives the king-tower inwall under centrifugal action, only some liquid flows down at an interior tower surface eye cyclone and forms the waterfall shape liquid film, contact once more with gas, secondly, swirl strength more and more a little less than, moreover the absorption liquid consumption is big; Middle Jia Neita has reduced the king-tower working space.

Utility model patent 200420005716.2 atomizing eddy flow desulfation dust-extraction devices are the eddy flow plate column, and elevation angle 35-45 ° in eddy flow plate blade has only two-layer eddy flow plate, and do not have leak-proof measure.

U.S. Pat 20040007635 exhuast gas desulfurizations are with crushing system (Flue gas desulfurizationgrinding system), just cyclone are used for the classification of limestone particle before the desulfurization.

U.S. Pat 4,229,192, eddy flow aeration tower (Cyclonic scrubberwith perforated plate distributor) with orifice plate distributor, also be tangential admission, in tower, produce eddy flow, upper and lower annular oriffice is arranged in the tower, be used to the absorption liquid that distributes, but do not have air deflector in the tower.

U.S. Pat 4,157,250 has the aeration tower (Scrubber apparatusfor washing gases and having a coarse and fine droplet separator) of big or small liquid drop separator, just separates big droplet with eddy flow.Existing gas cleaning plant, bulky as flue gas desulfur device etc., cause investment huge, reason is that absorption process efficient is low in the equipment, can only be by increasing progression or increase equipment remedies.

Summary of the invention

Purpose of the present invention is intended to reduce equipment volume by the absorption efficiency that improves the gas purifying equipment unit volume, reduces investment.

For achieving the above object, the technical scheme of patent of the present invention is that this gas cleaning plant is a vertical barrel type equipment.Air collecting chamber and gas outlet are arranged at the top, and a liquid collecting cavity and leakage fluid dram are arranged at the bottom, are main chamber between two chambeies; A mist eliminator is arranged at top, main chamber, and there is a gas tangential inlet bottom near the liquid collecting cavity place, has one to absorb the liquid inlet below mist eliminator.In the main chamber with one group of air deflector of the coaxial installation in certain interval.Leakage between air deflector and the tower body inwall can drop to minimum level by the outer shroud on the air deflector.After pending gas entered tower from the gas access, one side rotation one side rose.The absorption liquid that enters from the liquid inlet contacts with the rotational gas flow that rises on air deflector.Absorption liquid forms liquid film, brin and drop under the turbulent shear effect of eddy flow field, make gas-liquid fully contact.In addition, because turbulent extent is big in the tower, the centrifugal sedimentation effect that reaches liquid phase causes big gas-liquid relative velocity, so gas-liquid mass transfer speed is big.The absorption liquid that is thrown to wall is got back to the centre under the effect of air deflector, repeated multiple times participates in absorption process.Like this, the impurity composition in the gas can be entered liquid phase by absorption efficiently and separate.

Beneficial effect of the present invention:

Gas to be clean enters purifier from tangential gas access, and rotation is risen in device.Absorption liquid enters from the liquid inlet, top.Liquid takes place broken under the turbulent shear effect of eddy flow field, makes gas-liquid fully contact.Like this, the impurity composition in the gas is absorbed and enters liquid phase and separate.

Absorption liquid drops in when moving downward in the eddy flow field, under centrifugal action, does the centrifugal sedimentation campaign to wall.This has just increased the gas-liquid relative velocity, has increased gas-liquid mass transfer Surface Renewal rate, thereby improves the mass transfer assimilation effect.

The moment of momentum of air-flow is kept in the effect of air deflector on the one hand, and on the other hand, it is middle that the absorption liquid that moves to wall is got back to, once more with the participation absorption process, to improve the utilization rate of absorption liquid.

Outer shroud on the air deflector plays the sealing function between air deflector periphery and wall, flows directly to liquid cylinder and no longer participates in absorption process by the slit between air deflector periphery and wall in order to avoid be thrown to the absorption liquid of wall, promptly is short-circuited.

The effect of mist eliminator is the absorption drop of collecting in the top gas.

This device is based on cyclone technique work.Gas speed is big more, and drop is broken more for a short time; On the other hand, gas speed is bigger, and the suffered centrifugal force of drop is also big more, is thrown on the wall and can form and carry secretly, therefore, can avoid liquid flooding fully.Because mist eliminator also is based on cyclone technique work, so gas is fast bigger, the suffered centrifugal force of drop is also healed big, and drop seizure separative efficiency is higher.Therefore, this device superficial linear velocity in a column operation greatly.In other words, compare with traditional absorption column of gas, under the condition of same processing requirements, same tower body size, the treating capacity of this device is much bigger, perhaps, under the condition of same processing requirements and same treating capacity, the equipment of this technology is much smaller, and promptly the unit volume treating capacity of this device is much bigger.In addition, this device adopts no nozzle for the absorption liquid technology, no blockage problem, and good reliability, and liquid-gas ratio is little, and required absorption liquid is less, thereby has reduced investment and operating cost.

This technical equipment also can be used for mass transfer, the diabatic process of other gas-liquid two-phases except can be used for the GAS ABSORPTION purification.

Description of drawings

Accompanying drawing 1 is the gas absorption purifier structural representation.

Accompanying drawing 2 is air deflector structural representations.A is a vertical view for front view B

2 end socket top covers, 3 air collecting chambers, 4 flanges, 5 mist eliminators, 6 tower bodies, 7 main chambeies, 1 gas outlet, 8 absorption liquids enter the mouth in built-in ear seat 12 air inlets of 9 air deflectors, 10 distance sink tubes 11 13 liquid collecting cavities 14 leakage fluid drams 15 tapping valves 16 bypass valves 17 liquid level gauges 18 hand holes 19 flow deflectors 20 blind plates 21, and ring 23 is subjected to liquid bath 24 outer shrouds 25 base plates 26 return ducts in the ring 22

The specific embodiment

Introduce embodiments of the invention below in conjunction with accompanying drawing.

The present invention is made up of air collecting chamber (3), main chamber (7) and (13) three chambeies of liquid collecting cavity, and mist eliminator (5) and several air deflectors (9) are arranged in main chamber (7); Mist eliminator (5) is installed in top, main chamber; Air deflector (9) is supported on the built-in ear seat (11) with distance sink tube (10) spacing and after connecting in groups; Tower body top end socket top cover is connected with tower body (6) by flange (4); Exhaust outlet (1) is arranged at the tower top; Absorption liquid inlet (8) is arranged at top, side, main chamber (7), and hand hole (18), air inlet (12) are arranged at the bottom, side, and the bottom is liquid collecting cavity (13).

Mist eliminator is a cyclone separator, and its air inlet and leakage fluid dram are in main chamber, and the gas outlet is in air collecting chamber, and the air inlet of mist eliminator is the same with the air inlet of tower to be the tangential admission mouth, and sees from above, is all clockwise or input counterclockwise.

Gas to be clean tangentially enters tower from bottom air inlet (12), forms eddy flow field, and keeps swirl strength by being placed in the tower several air deflectors (9).

Absorption liquid inlet (8) quantity is one, is positioned on the uppermost air deflector, under the mist eliminator, and adopts the flange type of attachment to be connected with tower body.

There is liquid level gauge (17) liquid collecting cavity (13) side, and leakage fluid dram (14) is arranged at the bottom; Tapping valve (15) and bypass valve (16) are arranged on leakage fluid dram (14) pipeline.The air deflector spacing is 0.8 times of 0.4 ∽ of tower body internal diameter, uses gasket seal between each distance sink tube lower end and air deflector base plate.Wherein air deflector by flow deflector (19), blind plate (20), interior ring (21), middle ring (22), be subjected to liquid bath (23), outer shroud (24), base plate (25) and return duct (26) are formed.Blind plate (20) is a disk, is supported on the interior ring (21); Flow deflector (19) is supported between interior ring (21) and the middle ring (22) with certain angle; Base plate (25) forms and is subjected to liquid bath (23) in the bottom welding of middle ring (22) with outer shroud (24); Return duct (26) is welded in and is subjected to liquid bath (23) bottom.

The outer shroud of air deflector (24) is up big and down small taper video disc, and thickness 0.2 ∽ 1.5mm, cone angle are 50 ° of 30 ° of ∽, highly is 0.2 times of 0.1 ∽ of tower body internal diameter; Small end is welded on the base plate (25); Outside diameter is 1.067 times of tower body internal diameter 1.027 ∽; Big end has the triangle notch that distributes with 25 ° of sub-multiple angles of 15 ° of ∽; The triangle notch angle is 5.5 ° of 2.5 ° of ∽, and is up big and down small.

25 ° of 15 ° of ∽ in the elevation angle of flow deflector (19).

Under the counter-current operation situation, superficial linear velocity in a column is 5 ∽ 15m/s.

Absorption liquid enters tower from tower top absorption liquid inlet (8), flow on the blind plate (20) that is positioned at air deflector (9) center, under the air-flow effect that flow deflector (19) up comes out, liquid forms liquid film, brin even drop, for the helical movement in the eddy flow field above this air deflector, under action of centrifugal force, after being thrown on the inwall of tower body (6), down flowing to peripheral being subjected to of air deflector (9) along the outer shroud (24) on inwall and the air deflector (9) flows on the blind plate of next air deflector by return duct (26) in the liquid bath (23) then.So go round and begin again, the realization absorption liquid repeatedly contacts with gas to be clean.At last, absorption liquid is collected in the liquid collecting cavity (13), and the liquid level signal that records according to liquid level gauge (17) is controlled the keying of tapping valve (15).

Like this, realized the counter-current operation of gas purification process.Gas is purified step by step, and is last, and gas contacts with the cleanest absorption liquid, reaches the purest degree of gas.Because the effect of gas cyclone field, most of entrained drip is thrown on tower body (6) inwall.Remaining fine drop is passed through efficient mist eliminator (9) again and is caught, and gas band liquid is dropped to minimum level.

Claims (9)

1. gas absorption purifier, it is characterized in that: it is the tower body equipment of a vertical barrel type, and air collecting chamber and gas outlet are arranged at the top, a liquid collecting cavity and leakage fluid dram are arranged at the bottom, are main chamber between two chambeies; A mist eliminator is arranged at top, main chamber, and it is a cyclone separator, and there is a gas tangential inlet bottom near the liquid collecting cavity place, has one to absorb the liquid inlet below mist eliminator, the coaxial installation of property one group of air deflector in interval in the main chamber.
2. a kind of gas absorption purifier as claimed in claim 1 is characterized in that: air deflector (9) is supported on the built-in ear seat of tower body (11) with distance sink tube (10) spacing and after connecting in groups.
3. gas absorption purifier as claimed in claim 1 is characterized in that the air inlet of mist eliminator and leakage fluid dram are in main chamber, the gas outlet is in air collecting chamber, the air inlet of mist eliminator is the same with the air inlet of tower body to be the tangential admission mouth, and sees from above, is all clockwise or input counterclockwise.
4. gas absorption purifier as claimed in claim 1 is characterized in that, absorption liquid inlet (8) is one, is positioned on the uppermost air deflector, under the mist eliminator, and adopts the flange type of attachment to be connected with tower body.
5. gas absorption purifier as claimed in claim 1 is characterized in that, liquid collecting cavity (13) side is provided with liquid level gauge (17), and leakage fluid dram (14) is arranged at the bottom; Tapping valve (15) and bypass valve (16) are arranged on leakage fluid dram (14) pipeline.
6. gas absorption purifier as claimed in claim 1 is characterized in that, the air deflector spacing is 0.8 times of 0.4 ∽ of tower body internal diameter, uses gasket seal between each distance sink tube lower end and air deflector base plate.
7. gas absorption purifier as claimed in claim 1, it is characterized in that, air deflector by flow deflector (19), blind plate (20), interior ring (21), middle ring (22), formed by liquid bath (23), outer shroud (24), base plate (25) and return duct (26), wherein blind plate (20) is a disk, is supported on the interior ring (21); Flow deflector (19) is supported between interior ring (21) and the middle ring (22); Base plate (25) is arranged between the bottom of ring (22) and outer shroud (24), forms to be subjected to liquid bath (23); Return duct (26) is fixed on and is subjected to liquid bath (23) bottom.
8. gas absorption purifier as claimed in claim 7 is characterized in that, the outer shroud of air deflector (24) is up big and down small taper video disc, and thickness 0.2 ∽ 1.5mm, cone angle are 50 ° of 30 ° of ∽, highly is 0.2 times of 0.1 ∽ of tower body internal diameter; Small end is welded on the base plate (25); Outside diameter is 1.067 times of tower body internal diameter 1.027 ∽; Big end has the triangle notch that distributes with 25 ° of sub-multiple angles of 15 ° of ∽; The triangle notch angle is 5.5 ° of 2.5 ° of ∽, and is up big and down small.
9. gas absorption purifier as claimed in claim 7 is characterized in that, 25 ° of 15 ° of ∽ in the elevation angle of flow deflector (19).
CNB2007100200173A 2007-02-07 2007-02-07 Gas absorption purifier CN100482320C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100200173A CN100482320C (en) 2007-02-07 2007-02-07 Gas absorption purifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100200173A CN100482320C (en) 2007-02-07 2007-02-07 Gas absorption purifier

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CN101036848A true CN101036848A (en) 2007-09-19
CN100482320C CN100482320C (en) 2009-04-29

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102389699A (en) * 2011-09-21 2012-03-28 吉天师动力科技(上海)有限公司 Turbulent circulating flue gas purifying reaction kettle
CN102441323A (en) * 2011-11-03 2012-05-09 袁长胜 Swirl double hypergravity machine
CN102596366A (en) * 2009-07-10 2012-07-18 挪威国家石油公司 Method and apparatus for CO2 capture
CN101852558B (en) * 2009-04-03 2012-12-19 贵阳铝镁设计研究院有限公司 Gas-liquid cooling device
CN102921259A (en) * 2012-11-09 2013-02-13 上海齐耀螺杆机械有限公司 Self-circulation rotary liquid combined type gas filter and filtering method thereof
CN101716448B (en) * 2010-01-04 2013-03-27 中国科学院过程工程研究所 Dynamic rotary rotational flow plate device for strengthening transmission
CN105413395A (en) * 2015-09-21 2016-03-23 中石化节能环保工程科技有限公司 Gas absorption falling film reactor
CN105498498A (en) * 2016-01-07 2016-04-20 航天环境工程有限公司 Desulfuration and dust-removal absorption tower with cyclone tray
CN106166414A (en) * 2016-07-21 2016-11-30 华北电力大学(保定) A kind of supersonic condensing cyclone separator
CN108939761A (en) * 2018-08-16 2018-12-07 中国十七冶集团有限公司 RSW annular gap cleaning device installation method in a kind of purification system of waste gas of converter gas wash tower

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852558B (en) * 2009-04-03 2012-12-19 贵阳铝镁设计研究院有限公司 Gas-liquid cooling device
CN102596366A (en) * 2009-07-10 2012-07-18 挪威国家石油公司 Method and apparatus for CO2 capture
CN101716448B (en) * 2010-01-04 2013-03-27 中国科学院过程工程研究所 Dynamic rotary rotational flow plate device for strengthening transmission
CN102389699B (en) * 2011-09-21 2014-04-16 吉天师动力科技(上海)有限公司 Turbulent circulating flue gas purifying reaction kettle
CN102389699A (en) * 2011-09-21 2012-03-28 吉天师动力科技(上海)有限公司 Turbulent circulating flue gas purifying reaction kettle
CN102441323B (en) * 2011-11-03 2013-10-30 袁长胜 Swirl double hypergravity machine
CN102441323A (en) * 2011-11-03 2012-05-09 袁长胜 Swirl double hypergravity machine
CN102921259A (en) * 2012-11-09 2013-02-13 上海齐耀螺杆机械有限公司 Self-circulation rotary liquid combined type gas filter and filtering method thereof
CN105413395A (en) * 2015-09-21 2016-03-23 中石化节能环保工程科技有限公司 Gas absorption falling film reactor
CN105413395B (en) * 2015-09-21 2017-10-31 中石化节能环保工程科技有限公司 Gas absorbs falling film reactor
CN105498498A (en) * 2016-01-07 2016-04-20 航天环境工程有限公司 Desulfuration and dust-removal absorption tower with cyclone tray
CN106166414A (en) * 2016-07-21 2016-11-30 华北电力大学(保定) A kind of supersonic condensing cyclone separator
CN106166414B (en) * 2016-07-21 2018-07-10 华北电力大学(保定) A kind of supersonic condensing cyclone separator
CN108939761A (en) * 2018-08-16 2018-12-07 中国十七冶集团有限公司 RSW annular gap cleaning device installation method in a kind of purification system of waste gas of converter gas wash tower
CN108939761B (en) * 2018-08-16 2020-11-24 中国十七冶集团有限公司 Installation method of RSW circular seam cleaning device in dust removal tower of converter flue gas purification system

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Assignee: Hebei Lingang Chemical Co., Ltd.

Assignor: Jiangsu Polytechnic University

Contract record no.: 2011120000190

Denomination of invention: Gas absorption purifier

Granted publication date: 20090429

License type: Exclusive License

Open date: 20070919

Record date: 20110927

CP02 Change in the address of a patent holder

Address after: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1

Patentee after: Jiangsu Polytechnic University

Address before: 213016 Baiyun Road, Jiangsu, Changzhou

Patentee before: Jiangsu Polytechnic University

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Granted publication date: 20090429

Termination date: 20170207

CF01 Termination of patent right due to non-payment of annual fee