CN1236663A - Apparatus for absorbing SO2 from fume by seawater method - Google Patents
Apparatus for absorbing SO2 from fume by seawater method Download PDFInfo
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- CN1236663A CN1236663A CN 98113565 CN98113565A CN1236663A CN 1236663 A CN1236663 A CN 1236663A CN 98113565 CN98113565 CN 98113565 CN 98113565 A CN98113565 A CN 98113565A CN 1236663 A CN1236663 A CN 1236663A
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- precooler
- absorber
- flue gas
- cooling medium
- sulfur dioxide
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Abstract
An apparatus for absorbing SO2 and fume by seawater method is composed of pre-cooling unit for fume and absorber for SO2, between which there is a fume channal. the cooled medium discharged from pre-cooling unit and the water discharged from absorber have respective discharge channel. Its advantages are high absorptivity of SO2 and low cost of manufacture and running.
Description
The present invention relates to apparatus for absorbing SO 2 from fume by seawater method, belong to environmental protection technical field, be applicable to the occasion of the acid pollution materials such as sulfur dioxide in the facility institute discharged flue gas such as eliminating coastal industry device such as thermal power plant coal-burning boiler.
Because the needs of environmental protection control acid rain must remove sulfur in smoke that industrial equipment discharges such as fire coal.Prior art is to install flue gas desulfurization equipment additional on above-mentioned industrial plants, and these flue gas desulfur devices all must use certain sulfur dioxide absorbent, with the absorbing and removing sulfur in smoke.Natural sea-water is because natural alkalinity that it had makes it become cheap and good sulfur dioxide absorbent, thus make coastal industrial plants use cheap and efficiently desulfuration of flue gas by sea water technology had advantageous supremacy clause.The desulfuration of flue gas by sea water device, with the natural sea-water flue gas that spray washing flows through in absorber that extracts, the clean flue gas that has been washed sulfur dioxide can directly enter atmosphere by chimney; Washed the draining behind the sulfur dioxide,, therefore its quality recovery can have been entered the nature marine site after satisfying environmental requirement because wherein the minute quantity sulfate that increases is safe and harmless for marine environment.Because the flue gas that is washed is to come from commercial plant such as coal-burning boiler, the cigarette temperature often surpasses 130 ℃ Celsius, can not directly absorb the operation of sulfur dioxide to it, so must carry out pre-cooled to flue gas.Existing seawater method apparatus for absorbing SO 2 (Fig. 6), because its precooler is positioned at below, absorber inside, because of having absorbed the pre-cooled water that flue gas heat has higher water temperature, converge at absorber bottom and the acid seawater that has absorbed sulfur dioxide, thereby offseted pre-cooled effect, the sulfur dioxide that causes dissolving in liquid phase is overflowed again, thereby causes system's desulfuration efficiency to descend.Simultaneously, because the spray facility of absorber is located at precooler top, thereby must corresponding lifting as the lift of the seawater of absorbent, the rising significantly that this has just caused systematic running cost to use.Because desulfuration efficiency is low and the high critical defect of operating cost, the use of said apparatus is subjected to strict restriction.
The objective of the invention is to, overcome the deficiencies in the prior art, improve the process structure of desulfuration of flue gas by sea water device, make its can be more efficiently, build at low cost and move.
The technical scheme of apparatus for absorbing SO 2 from fume by seawater method of the present invention is: it comprises precooler and absorber, and precooler discharge cooling medium and absorber draining have passing away separately.It is achieved in that precooler and absorber constitute (Fig. 2) by two cavitys respectively, between two cavitys exhaust gases passes is arranged, and precooler discharge cooling medium and absorber draining are provided with passing away separately.Precooler and absorber also can sufficient two independent tower bodies (Fig. 3), have exhaust gases passes to connect between two tower bodies, and precooler is discharged cooling medium and absorber draining and is provided with separately row mountain passage.The cooling medium that precooler uses can be that water for industrial use, seawater, air or other are suitable for use as the liquid or the gas of cooling medium.The heat absorption mode of precooler can be cooling medium directly spray (Fig. 2, Fig. 3) or with cooling medium by heat exchange element absorb heat (Fig. 4, Fig. 5).Precooler can be that flue gas enters pipe self formation.When the heat absorption mode of precooler was the structure of absorbing heat by heat exchange element with cooling medium, precooler can be located at the absorber below and be arranged at same tower body (Fig. 5) with absorber, and cooling medium also can have independent passing away.
Accompanying drawing of the present invention and being described as follows:
Fig. 1, be the schematic diagram that apparatus of the present invention connect with other parts;
Fig. 2, constitute by two cavitys and schematic diagram when using the fountain precooler for the present invention;
Fig. 3, constitute by two independent tower bodies and schematic diagram when using the fountain precooler for the present invention;
Fig. 4, constitute by two independent tower bodies and schematic diagram when using heat exchange element formula precooler for the present invention;
Fig. 5, constitute by same tower body and schematic diagram when using heat exchange element formula precooler for the present invention;
Fig. 6, be existing seawater method apparatus for absorbing SO 2.
Among the figure: 1, burner such as boiler, 2, electric precipitator, 3, air-introduced machine, 4, flue gas enters pipe, and 5, precooler, 6, exhaust gases passes, 7, absorber, 8, smoke outlet tube, 9, chimney, 10, cooling medium enters pipe, and 11, shower or heat exchange element, 12, hot cooling medium passing away, 13, sea water pump, 14, absorber advances the seawater pipe, and 15, the absorber drainage channel, 16, the quality recovery device.
Operation principle of the present invention is: the flue gas that the burners such as boiler (1) are discharged is removed wherein dust through electric precipitator (2) earlier, after air-introduced machine (3) supercharging, enter pipe (4) input precooler (5) from flue gas again, enter absorber (7) via exhaust gases passes (6) with the SO in the washing flue gas through overcooled flue gas2, the dried flue gas of striving after the washing is discharged into chimney from absorber (7) top through smoke outlet tube (8) (9), and by chimney (9) be discharged into atmosphere. Meanwhile, cooling medium enters pipe through cooling medium (10) enter precooler (5), cooling medium is inhaled by shower or heat exchange element (11) therein Receive flue gas heat and heat up into hot cooling medium, hot cooling medium is via hot cooling medium passing away (12) Discharge; On the other hand, that the natural sea-water that extracts is advanced seawater pipe (14) through absorber is defeated for sea water pump (13) Enter absorber (7), seawater sprays the flue gas that flows through and absorbs SO in the flue gas in absorber2, then Flow to quality recovery device (16) from the absorber drainage channel (15) of absorber (7), extensive in water quality Enter the nature marine site after in the apparatus for coating draining water quality being returned to the requirement of satisfying environmental standard.
It is as follows that the invention will be further described in conjunction with the embodiments.
Expression the present invention embodiment illustrated in fig. 2 is made of two cavitys and the structure when using the fountain precooler, include: one, precooler (5) cavity, two, exhaust gases passes (6), three, absorber (7) cavity, four, hot cooling medium passing away (12); Five, absorber drainage channel (15).One end of precooler (5) cavity is associated with flue gas and enters pipe (4), and the other end has exhaust gases passes (6); One end of absorber (7) cavity is exhaust gases passes (6), and smoke outlet tube (8) is arranged at top.One end of precooler (5) cavity also is associated with cooling medium and enters pipe (10), wherein is provided with shower (11), and the other end has hot cooling medium passing away (12); The upper end of absorber (7) cavity has absorber to advance seawater pipe (14), and there is absorber drainage channel (15) lower end, and absorber can be absorber towers such as material filling type, sieve-board type or open-core type.
Precooler and absorber can also be made of tower body independently, and the two has exhaust gases passes to connect.Fig. 3 represents that the present invention is made of two independent tower bodies and the structure when using the fountain precooler.
Precooler can be made of heat exchange element.Fig. 4 represents that the present invention is made of two independent tower bodies and the structure when using heat exchange element formula precooler.
Precooler can be located at the absorber below and be arranged at same tower body with absorber.Fig. 5 represents that the present invention is located at absorber below by precooler and structure when being arranged at same tower body and using heat exchange element formula precooler with absorber.
The invention has the advantages that, cooling medium discharges separately, thereby guaranteed the high desulfurization efficiency of desulphurization system, particularly precooler and absorber are divided into two cavitys or two structures that tower body is provided with shown in Fig. 2, Fig. 3, Fig. 4, the embodiment, when having high desulfurization efficiency, also have the advantage that reduces operating cost and cost significantly.The material of apparatus of the present invention can be metal or cement or organic material structure.
Claims (6)
1, a kind of seawater method apparatus for absorbing SO 2, it comprises flue gas precooler and sulfur dioxide absorber, it is characterized in that, precooler discharge cooling medium and absorber draining have passing away separately.
2, device according to claim 1 is characterized in that, flue gas precooler and sulfur dioxide absorber are made of two cavitys, between two cavitys exhaust gases passes are arranged.
3, device according to claim 1 is characterized in that, flue gas precooler and sulfur dioxide absorber are made of two independent tower bodies, has exhaust gases passes to connect between two tower bodies.
4, device according to claim 1 is characterized in that, precooler can be that flue gas enters pipe self.
5, device according to claim 1 is characterized in that, precooler can be arranged at same tower body with the sulfur dioxide absorber.
6, device according to claim 1 is characterized in that, precooler can be shower type or heat exchange element formula structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113565 CN1236663A (en) | 1998-05-22 | 1998-05-22 | Apparatus for absorbing SO2 from fume by seawater method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113565 CN1236663A (en) | 1998-05-22 | 1998-05-22 | Apparatus for absorbing SO2 from fume by seawater method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1236663A true CN1236663A (en) | 1999-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98113565 Pending CN1236663A (en) | 1998-05-22 | 1998-05-22 | Apparatus for absorbing SO2 from fume by seawater method |
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| CN (1) | CN1236663A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009149602A1 (en) * | 2008-06-13 | 2009-12-17 | Peng Sigan | Washing device and washing method for marine exhaust flue gases |
| CN102112210A (en) * | 2008-06-13 | 2011-06-29 | 彭斯干 | Method and device for desulfurization of smoke discharged from ship |
| CN102337948A (en) * | 2010-07-15 | 2012-02-01 | 仿真科技公司 | Reduction system of exhaust gas pollution and its monitoring method |
| US9757686B2 (en) | 2008-06-13 | 2017-09-12 | Sigan Peng | Ship flue gas scrubbing apparatus and method |
| CN108027140A (en) * | 2015-12-06 | 2018-05-11 | 彭斯干 | Ocean platform high-temperature flue gas safety dumping method and cooling purifier |
-
1998
- 1998-05-22 CN CN 98113565 patent/CN1236663A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009149602A1 (en) * | 2008-06-13 | 2009-12-17 | Peng Sigan | Washing device and washing method for marine exhaust flue gases |
| CN102112210A (en) * | 2008-06-13 | 2011-06-29 | 彭斯干 | Method and device for desulfurization of smoke discharged from ship |
| US8038774B2 (en) | 2008-06-13 | 2011-10-18 | Sigan Peng | Ship flue gas desulphurization method and equipment |
| US8500893B2 (en) | 2008-06-13 | 2013-08-06 | Sigan Peng | Ship flue gas scrubbing equipment and method |
| CN102112210B (en) * | 2008-06-13 | 2014-03-26 | 武汉晶源环境工程有限公司 | Method and device for desulfurization of smoke discharged from ship |
| AU2008357629B2 (en) * | 2008-06-13 | 2015-09-03 | Sigan Peng | Washing device and washing method for marine exhaust flue gases |
| US9757686B2 (en) | 2008-06-13 | 2017-09-12 | Sigan Peng | Ship flue gas scrubbing apparatus and method |
| CN102337948A (en) * | 2010-07-15 | 2012-02-01 | 仿真科技公司 | Reduction system of exhaust gas pollution and its monitoring method |
| CN108027140A (en) * | 2015-12-06 | 2018-05-11 | 彭斯干 | Ocean platform high-temperature flue gas safety dumping method and cooling purifier |
| CN108027140B (en) * | 2015-12-06 | 2020-07-03 | 武汉晶源海能源科技有限公司 | Safe emission method of high-temperature flue gas of ocean platform and cooling and purifying device |
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