CN201353476Y - Seawater flue gas desulfurization spray adsorption tower - Google Patents

Seawater flue gas desulfurization spray adsorption tower Download PDF

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Publication number
CN201353476Y
CN201353476Y CNU2009200040874U CN200920004087U CN201353476Y CN 201353476 Y CN201353476 Y CN 201353476Y CN U2009200040874 U CNU2009200040874 U CN U2009200040874U CN 200920004087 U CN200920004087 U CN 200920004087U CN 201353476 Y CN201353476 Y CN 201353476Y
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CN
China
Prior art keywords
tower
flue gas
seawater
demister
liquid
Prior art date
Application number
CNU2009200040874U
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Chinese (zh)
Inventor
樊响
王青
黄超
陈志斌
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中冶集团北京冶金设备研究设计总院
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Priority to CNU2009200040874U priority Critical patent/CN201353476Y/en
Application granted granted Critical
Publication of CN201353476Y publication Critical patent/CN201353476Y/en

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Abstract

A seawater flue gas desulfurization spray adsorption tower comprises flue gas inlets, spray layers, a demister, a demister flushing water pipe, a flue gas outlet, a seawater supplying pipe, a tower body and a seawater discharge outlet. The seawater flue gas desulfurization spray adsorption tower is characterized in that the flue gas inlets have two and are symmetrically arranged in downwards tangential inclined directions on two sides of the tower body, a gas distribution plate of a porous structure is arranged under the spray layers, the spray layers have four, each spray layer rotates with one angle, a liquid redistributor arranged under the spray layers is an annular inclined plate fixed on the tower wall, the inclined plate inclining downwards is in sealing connection with the inner wall of the tower body, the seawater discharge outlet is arranged on the conical bottom of the tower body, and the spray adsorption tower is sequentially provided with the demister, the demister flushing water pipe, the spray layers, the liquid redistributor, the gas distribution plate, the flue gas inlets and the seawater discharge outlet from top to bottom. The seawater flue gas desulfurization spray adsorption tower has the advantages that gas and liquid flow distribution in the tower is uniform, and utilization rate of adsorbed liquid and desulfurization efficiency of flue gas are high.

Description

A kind of desulfuration of flue gas by sea water spray absorber

Technical field:

The utility model relates to the desulfuration of flue gas by sea water technical field, particularly relates to a kind of spray absorber of desulfuration of flue gas by sea water.

Background technology:

In existing flue gas desulfurization technique, because the absorbent of flue gas desulfurization with seawater technology derives from seawater, make that this technological process is simple, investment and operating cost are low, to such an extent as to flue gas desulfurization with seawater technology is used in coastal industry flue gas desulfurization widely, in desulfuration of flue gas by sea water technology, flue gas desulfurization sprinkle absorbing tower is the equipment of most critical in the flue gas desulfurization technique, existing flue gas desulfurization sprinkle absorbing tower is mostly by a smoke inlet, an exhanst gas outlet and a seawater inlet, seawater effluxes mouth, spraying layer, demister, oxidation ponds etc. are partly formed, and its operation principle is: flue gas enters spray absorber and absorb SO under the effect of spray absorption liquid 2After drop to that to carry out oxidation processes in the oxidation pond of absorption tower be sulfate or sulfuric acid to transform sulphite or sulfurous acid, in the spray absorption process, key is to keep gas-liquid flow field distribution uniformly and absorption liquid sprinkle density in the tower, to improve the validity of gas-liquid contact, guarantee the necessary condition of absorption reaction matter; But because single smoke inlet causes the asymmetry of gas flowfield, make that the Flow Field Distribution of gas in the absorption tower is inhomogeneous, its inhomogeneities is particularly evident at Bian Bichu, and absorption liquid is pasting the tower wall and flows in the absorption tower, cause wall stream, reduced the utilization rate and the desulfuration efficiency of absorption liquid.

Summary of the invention:

The purpose of this utility model provides a kind of desulfuration of flue gas by sea water spray absorber that uniform gas-liquid distributes with good gas-liquid contacts, desulfuration efficiency is high that has.

Technical solution of the present utility model provides a kind of smoke inlet, spraying layer, demister, demister flushing water pipeline, exhanst gas outlet, seawater supply line, tower body, seawater of comprising and effluxes the desulfuration of flue gas by sea water spray absorber of mouth, feature is: smoke inlet has two, is symmetrically distributed on the downward direction of tower body both sides tangential tilt; The gas distribution grid of a loose structure is arranged in the below of spraying layer; Spraying layer is 4 layers, angle of every layer of rotation; At liquid re-distributor of spraying layer arranged beneath, liquid re-distributor is the ring-type hang plate that is fixed on the tower wall, and downward-sloping hang plate and tower body inwall place are tightly connected; Seawater effluxes the conical lower portion that mouth is positioned at tower body; Spray absorber is furnished with demister, demister flushing water pipeline, spraying layer, liquid re-distributor, gas distribution grid, smoke inlet, seawater from top to bottom successively and effluxes mouth; Its feature is that also liquid re-distributor is arranged between the spraying layer; Demister is arranged between the demister flushing water pipeline.

The utility model beneficial effect is: because the flow field distributes and rotation rising in tower symmetrically and evenly after having adopted two smoke inlets to make flue gas go into tower, by making gas flowfield more even behind the top porous gas distribution grid, the liquid re-distributor at tower wall place makes the absorption liquid break-in of wall stream leave the tower wall and sprays downwards, adherent mobile absorption liquid is fully utilized, strengthened the validity of gas-liquid contact, improved the matter of absorption reaction, owing to adopt the spraying layer of 4 layers of translation-angle, increased the spray flux of seawater, there is more fresh seawater to participate in absorption process, improved the amount of absorption reaction, more SO in the flue gas 2Be absorbed, improved the desulfuration efficiency of fume desulfurizing tower.

Description of drawings:

Fig. 1 is a kind of desulfuration of flue gas by sea water spray absorber of the utility model embodiment structural representation.

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is the vertical view of the utility model embodiment sequence number 3 gas distribution grids.

Fig. 4 is the vertical view of the utility model embodiment sequence number 4 spraying layers.

Fig. 5 is the vertical view of the utility model embodiment sequence number 5 spraying layers.

Fig. 6 is the vertical view of the utility model embodiment sequence number 6 spraying layers.

Fig. 7 is the vertical view of the utility model embodiment sequence number 7 spraying layers.

In the accompanying drawing: 1. smoke inlet; 2. smoke inlet; 3. gas distribution grid; 4. spraying layer; 5. spraying layer; 6. spraying layer; 7. spraying layer; 8. liquid re-distributor; 9. demister; 10. demister; 11. demister flushing water pipeline; 12. exhanst gas outlet; 13. seawater supply line; 14. tower body; 15. seawater effluxes mouth.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model embodiment is done and to describe in further detail.

A kind of desulfuration of flue gas by sea water spray absorber of the utility model embodiment as shown in Figure 1 comprises smoke inlet 1,2, gas distribution grid 3, spraying layer 4,5,6,7, liquid re-distributor 8, demister 9,10, demister flushing water pipeline 11, exhanst gas outlet 12, seawater supply line 13, tower body 14, seawater efflux mouth 15.Smoke inlet 1,2 as shown in Figure 2 is that the spray absorber bilateral tangentially distributes symmetrically and evenly, and smoke inlet is with tangential and be tilted to following direction connection tower body; Gas distribution grid 3 as shown in Figure 3 is the porous type structure; As Fig. 4, Fig. 5, Fig. 6, spraying layer shown in Figure 7 is four layers, and every layer is all rotated an angular distribution in tower body; Demister flushing water pipeline 11 is three layers, demister 9,10 is arranged between the demister flushing water pipeline 11, spraying layer 4,5,6,7 is arranged in the top of gas distribution grid 3, liquid re-distributor 8 is for being fixed on the ring-type hang plate on the tower wall, hang plate and Ta Bichu are tightly connected, plate is downward-sloping to be arranged between 5,6 layers of the spraying layers, and seawater effluxes mouthfuls 15 centrum bottoms that are arranged in spray absorber.The operation principle of the utility model embodiment is: flue gas enters the absorption tower from smoke inlet 1,2, upwards evenly distributes through gas distribution grid 3, contacts SO in the flue gas with the sprayed sea water that comes from seawater supply line 13 is reverse at spraying layer 4,5,6,7 2By seawater spraying liquid absorbing and removing, remove SO 2Flue gas after the moisture that major part carries is removed at demister 9,10 places, discharge from exhanst gas outlet 11.Demister flushing water pipeline 11 provides fresh water (FW) flushing demister.Absorbed SO 2The seawater of acid seawater through the absorption tower awl end efflux mouthfuls 14 and drain into and carry out the oxidation dilution discharge outside the tower and handle.

Claims (3)

1, a kind of desulfuration of flue gas by sea water spray absorber, comprise that smoke inlet (1), spraying layer (4), demister (9,10), demister flushing water pipeline (11), exhanst gas outlet (12), seawater supply line (13), tower body (14), seawater efflux mouthful (15), feature is: smoke inlet (1,2) has two, is symmetrically distributed on the downward direction of tower body (14) both sides tangential tilt; The gas distribution grid of a loose structure (3) is arranged in the below of spraying layer (4,5,6,7); Spraying layer is 4 layers (4,5,6,7), angle of every layer of rotation; At a liquid re-distributor of spraying layer arranged beneath (8), liquid re-distributor (8) is for being fixed on the ring-type hang plate on the tower wall, and downward-sloping hang plate and tower body (14) inwall place is tightly connected; Seawater effluxes the conical lower portion that mouthful (15) are positioned at tower body (14); Spray absorber is furnished with demister (9,10), demister flushing water pipeline (11), spraying layer (4,5,6,7), liquid re-distributor (8), gas distribution grid (3), smoke inlet (1,2), seawater from top to bottom successively and effluxes mouthful (15).
2. a kind of desulfuration of flue gas by sea water spray absorber according to claim 1, feature is: liquid re-distributor (8) is arranged between the spraying layer (4,5,6,7).
3. a kind of desulfuration of flue gas by sea water spray absorber according to claim 1, feature is: demister (9,10) is arranged between the demister flushing water pipeline (11).
CNU2009200040874U 2009-02-01 2009-02-01 Seawater flue gas desulfurization spray adsorption tower CN201353476Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009200040874U CN201353476Y (en) 2009-02-01 2009-02-01 Seawater flue gas desulfurization spray adsorption tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200040874U CN201353476Y (en) 2009-02-01 2009-02-01 Seawater flue gas desulfurization spray adsorption tower

Publications (1)

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CN201353476Y true CN201353476Y (en) 2009-12-02

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102794102A (en) * 2012-08-20 2012-11-28 安徽工业大学 Desulfurization tower equipped with gas-flow uniform-distribution plate
CN103071369A (en) * 2013-01-22 2013-05-01 西安交通大学 Seawater desulfurization system suitable for frequency change of coal quality
CN104759199A (en) * 2015-03-18 2015-07-08 西安热工研究院有限公司 Flue gas desulfurization absorption system
CN105169937A (en) * 2015-09-30 2015-12-23 苏州韵蓝环保科技有限公司 Scrubbing tower provided with flow blocking wall
CN105169936A (en) * 2015-09-30 2015-12-23 苏州韵蓝环保科技有限公司 Gas-liquid washing tower
CN105169939A (en) * 2015-10-15 2015-12-23 苏州韵蓝环保科技有限公司 Washing tower with liquid distributors
CN105311948A (en) * 2014-07-30 2016-02-10 山西易通环保技术有限公司 Multi-effect flue gas purification absorption tower

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102794102A (en) * 2012-08-20 2012-11-28 安徽工业大学 Desulfurization tower equipped with gas-flow uniform-distribution plate
CN103071369A (en) * 2013-01-22 2013-05-01 西安交通大学 Seawater desulfurization system suitable for frequency change of coal quality
CN105311948A (en) * 2014-07-30 2016-02-10 山西易通环保技术有限公司 Multi-effect flue gas purification absorption tower
CN104759199A (en) * 2015-03-18 2015-07-08 西安热工研究院有限公司 Flue gas desulfurization absorption system
CN105169937A (en) * 2015-09-30 2015-12-23 苏州韵蓝环保科技有限公司 Scrubbing tower provided with flow blocking wall
CN105169936A (en) * 2015-09-30 2015-12-23 苏州韵蓝环保科技有限公司 Gas-liquid washing tower
CN105169939A (en) * 2015-10-15 2015-12-23 苏州韵蓝环保科技有限公司 Washing tower with liquid distributors

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C56 Change in the name or address of the patentee

Owner name: BEIJING CHINA METALLURGICAL EQUIPMENT RESEARCH + D

Free format text: FORMER NAME: BEIJING RESEARCH AND DESIGN GENERAL INST. OF METALLURGICAL EQUIPMENT, CHINA META

CP01 Change in the name or title of a patent holder

Address after: Beijing City, Chaoyang District Anwai Gu Road P.O. Box 9821 Beijing Institute of metallurgical equipment, zip code: 100029

Patentee after: Beijing Metallurgical Equipment Research and Design Institute Co., Ltd.

Address before: Beijing City, Chaoyang District Anwai Gu Road P.O. Box 9821 Beijing Institute of metallurgical equipment, zip code: 100029

Patentee before: Beijing Research Institute of Metallurgical Equipment, China Metallurgical Const

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20091202