CN101143299B - Deuslfurizing system for sea water - Google Patents
Deuslfurizing system for sea water Download PDFInfo
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- CN101143299B CN101143299B CN2007101182416A CN200710118241A CN101143299B CN 101143299 B CN101143299 B CN 101143299B CN 2007101182416 A CN2007101182416 A CN 2007101182416A CN 200710118241 A CN200710118241 A CN 200710118241A CN 101143299 B CN101143299 B CN 101143299B
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- absorption tower
- seawater
- aeration tank
- inlet
- meter
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- 239000013535 sea water Substances 0.000 title claims abstract description 93
- 238000005273 aeration Methods 0.000 claims abstract description 65
- 238000010521 absorption reaction Methods 0.000 claims abstract description 64
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000005276 aerator Methods 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003546 flue gas Substances 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 abstract description 5
- 239000011593 sulfur Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The invention relates to a seawater desulphurization system. The invention comprises a controller, a sulfur dioxide content meter, a gas flow meter, a seawater flow meter, a controlling device, a thermometer and a pH monitor. The sulfur dioxide content meter and the gas flow meter are in turn connected in series with an air intake of a pressure fan. The thermometer is arranged on an absorption tower. The pH monitor is arranged on a liquid outlet of an aeration tank. The seawater flow meter is arranged on the seawater conveying pipe which is between a pressure pump and the absorption tower. The sulfur dioxide content meter, the gas flow meter, the seawater flow meter, the thermometer and the Ph monitor are separately connected with the controller in electric connection. The controller is connected with the pressure pump through the controlling device and an aerator. The controller can regulate the output of the seawater pressure pump based on the gas volume and sulfur content variationof the gas to achieve the best match of the desulphurization seawater volume and gas volume. Because the seawater temperature and the variation of the alkalinity cause the seawater have different recovery capability, the aeration rate of the aeration fan is monitored and adjusted based on the pH value of the aeration tank outlet to optimize the aeration rate.
Description
Technical field
The present invention relates to a kind of Deuslfurizing system for sea water, particularly a kind of system that removes sulfur dioxide in flue gas with seawater.
Background technology
At present, coal-burned industrial boiler or station boiler contain a large amount of SO in the flue gas that burning produces
2Deng acid contaminant, be the main cause that causes air pollution and acid rain.For gas cleaning, adopt seawater to carry out the selection that desulfurization is a kind of economy, efficient, environmental protection near the industrial combustion system, particularly large-scale coal-fired power station boiler on seashore.Seawater desulfurizing process must solve the problem of gas cleaning and restoring sea water simultaneously, and this requires reasonably available seawater amount and the aeration rate that is used for restoring sea water are reasonably selected and distributed.But because parameters such as the basicity of exhaust gas volumn and sulfur content, seawater and temperature are variable, and existing Deuslfurizing system for sea water has just carried out the desulfurization of seawater, and no matter the basicity and the absorption tower variation of temperature of exhaust gas volumn, sulfur content, seawater, therefore this system only carries out work under the parameter of design, under the situation that above-mentioned parameter changes, Deuslfurizing system for sea water does not possess the corresponding regulating power of seawater distribution and aeration rate.
Summary of the invention
What the object of the invention was to provide a kind of proposition possesses that seawater distributes and the Deuslfurizing system for sea water of the corresponding regulating power of aeration rate, thereby reaches better control desulphurization reaction and reduce the purpose of power consumption.
In order to realize purpose of the present invention, the present invention implements in the following manner:
A kind of Deuslfurizing system for sea water of the present invention, it comprises: chimney, booster fan, heat exchanger, the absorption tower, aerator, the aeration tank, forebay and booster pump, the gas outlet of booster fan links to each other with the waste gas inlet of heat exchanger lower end, the waste gas gas outlet of heat exchanger lower end links to each other with the exhaust gas inlet of lower end, absorption tower, the exhaust outlet of upper end, absorption tower links to each other with the air inlet of heat exchanger upper end, the exhaust outlet of heat exchanger upper end links to each other with chimney, the forebay links to each other with the inlet on absorption tower by at least one booster pump in parallel, the bottom of forebay also links to each other with the seawater water inlet of aeration tank, the liquid outlet on absorption tower links to each other with the inlet of aeration tank, the liquid outlet of aeration tank leads to the sea, an aerator is housed in the aeration tank at least, wherein: Deuslfurizing system for sea water also comprises: controller, the content of sulfur dioxide meter, the flue gas flow meter, the seawater flow meter, adjusting device, thermometer and acid-base value monitoring meter, content of sulfur dioxide meter and flue gas flow meter are connected successively and are contained in the air inlet of booster fan, thermometer is contained on the absorption tower, acid-base value monitoring meter is contained in the liquid outlet of aeration tank, the seawater flow meter is contained on the seawater conveyance conduit between booster pump and the absorption tower, the content of sulfur dioxide meter, the flue gas flow meter, the seawater flow meter, thermometer and acid-base value monitoring score are not electrically connected with controller, and controller is electrically connected with aerator and booster pump by adjusting device respectively;
A kind of Deuslfurizing system for sea water of the present invention, wherein: described adjusting device is fluid coupling or frequency converter;
A kind of Deuslfurizing system for sea water of the present invention, wherein: be equipped with from top to bottom successively on described absorption tower: demister, injection well downhole flow regulator and packing layer, packing layer is contained on the liquid level on absorption tower, described thermometer is contained on the liquid level and the absorption tower between the packing layer on absorption tower, the inlet on absorption tower is opened on the absorption tower at injection well downhole flow regulator place, the exhaust gas inlet of lower end, absorption tower is opened on the absorption tower of liquid level lower end, and the exhaust outlet of upper end, absorption tower is opened on the absorption tower of demister upper end;
A kind of Deuslfurizing system for sea water of the present invention, wherein: described aeration tank comprises: water distributing area, aeration zone and catchment, the water level of water distributing area, aeration zone and catchment reduces successively, separate with dividing plate between them, described aeration tank seawater water inlet is opened at water distributing area, described aeration tank inlet feeds the aeration zone, and described aerator is contained in the aeration zone, and described aeration tank liquid outlet is driveed in the catchment;
A kind of Deuslfurizing system for sea water of the present invention, wherein: described controller is DCS or PLC controller;
A kind of Deuslfurizing system for sea water of the present invention, wherein: described forebay links to each other with the inlet on absorption tower by the booster pump of two parallel connections;
A kind of Deuslfurizing system for sea water of the present invention, wherein: the inlet of described booster pump and liquid outlet are equipped with Electrically operated gate respectively;
A kind of Deuslfurizing system for sea water of the present invention, wherein: two aerators are housed in the described aeration tank;
A kind of Deuslfurizing system for sea water of the present invention, wherein: the exhaust outlet of the air inlet of described content of sulfur dioxide meter and heat exchanger upper end is equipped with two baffle doors of series connection respectively, and they are by motor drives.
Deuslfurizing system for sea water of the present invention is compared with existing Deuslfurizing system for sea water, because ocean temperature, basicity condition change with season, climate change, its corresponding restoring sea water ability should be also along with the variation of above-mentioned parameter changes, the present invention is the variation according to sulfur content in exhaust gas volumn that enters system and the flue gas, regulate the rotating speed of seawater booster pump, make desulfurization seawater amount and exhaust gas volumn optimum Match; Change the different of the restoring sea water ability cause according to the temperature of seawater in the absorption tower and the acid-base value that enters seawater, regulate the aeration rate of Aeration fan, make aeration rate reach optimization.Therefore the present invention reasonably joins seawater, makes as much as possible undesulfured alkaline seawater enter the restoring sea water system in later stage, improves the condition of restoring sea water system, reduces the power consumption of system simultaneously, makes desulfurization seawater amount and exhaust gas volumn reach best coupling.
Description of drawings
Fig. 1 is the schematic diagram of Deuslfurizing system for sea water of the present invention.
The specific embodiment
As shown in Figure 1, Deuslfurizing system for sea water of the present invention comprises: chimney 1, booster fan 20, heat exchanger 4, absorption tower 5, aerator 10, aeration tank 11, forebay 17 and booster pump 15, the gas outlet of booster fan 20 links to each other with the waste gas inlet of heat exchanger 4 lower ends, the waste gas gas outlet of heat exchanger 4 lower ends links to each other with the exhaust gas inlet of 5 lower ends, absorption tower, the exhaust outlet of 5 upper ends, absorption tower links to each other with the air inlet of heat exchanger 4 upper ends, the exhaust outlet of heat exchanger 4 upper ends links to each other with chimney 1, forebay 17 links to each other with the inlet on absorption tower 5 by the booster pump 15 of two parallel connections, the inlet of booster pump 15 and liquid outlet are equipped with Electrically operated gate 16 respectively, the bottom of forebay 17 also links to each other with the seawater water inlet of aeration tank 11, the liquid outlet on absorption tower 5 links to each other with the inlet of aeration tank 11, the liquid outlet of aeration tank 11 leads to the sea, two aerators 10 are housed in the aeration tank 11, Deuslfurizing system for sea water also comprises: controller 13, content of sulfur dioxide meter 18, flue gas flow meter 19, seawater flow meter 14, adjusting device 25, thermometer 6 and acid-base value monitoring meter 7, content of sulfur dioxide meter 18 and flue gas flow meter 19 are connected successively and are contained in the air inlet of booster fan 20, thermometer 6 is contained on the absorption tower 5, acid-base value monitoring meter 7 is contained in the liquid outlet of aeration tank 11, seawater flow meter 14 is contained on the seawater conveyance conduit between booster pump 15 and the absorption tower 5, content of sulfur dioxide meter 18, flue gas flow meter 19, seawater flow meter 14 thermometers 6 and acid-base value monitoring meter 7 are electrically connected with controller 13 respectively, controller 13 passes through adjusting device 25 promptly respectively: fluid coupling or frequency converter are electrically connected with aerator 10 and booster pump 15, and controller 13 is DCS or PLC controller.
Be equipped with from top to bottom successively on absorption tower 5: demister 21, injection well downhole flow regulator 22 and packing layer 23, packing layer 23 is contained on the liquid level 24 on absorption tower 5, thermometer 6 is contained on the liquid level 24 and the absorption tower 5 between the packing layer 23 on absorption tower 5, the inlet on absorption tower 5 is opened on the absorption tower 5 at injection well downhole flow regulator 22 places, the exhaust gas inlet of 5 lower ends, absorption tower is opened on the absorption tower 5 of liquid level 24 lower ends, and the exhaust outlet of 5 upper ends, absorption tower is opened on the absorption tower 5 of demister 21 upper ends.
The exhaust outlet of the air inlet of content of sulfur dioxide meter 18 and heat exchanger 4 upper ends is equipped with two baffle doors 3 of series connection respectively, and they are driven by motor 2.
Operation principle:
The basic procedure of seawater desulfurizing process is: the flue gas that the industrial combustion system comes enters Deuslfurizing system for sea water, provide power by this intrasystem booster fan 20, carry out purified treatment through entering absorption tower 5 after heat exchanger 4 heat exchange, the clean flue gas after the processing by heat exchanger 4 heat exchange intensifications after chimney 1 discharging.The required seawater of desulfurization is taken from the condenser (not drawing among the figure) of industrial combustion system, and this seawater is sent into forebay 17, its small part (less than Total Water 1/4) send in the absorption tower 5 by booster pump 15, its another part is directly sent into aeration tank 11.
Because exhaust gas volumn, the unstability of sulfur content, content of sulfur dioxide meter 18 in the system of the present invention and flue gas flow meter 19 are connected successively and are contained in the air inlet of booster fan 20, thermometer 6 is contained on the absorption tower 5, acid-base value monitoring meter 7 is contained in the liquid outlet of aeration tank 11, seawater flow meter 14 is contained on the seawater conveyance conduit between booster pump 15 and the absorption tower 5, content of sulfur dioxide meter 18, flue gas flow meter 19, seawater flow meter 14, thermometer 6 and acid-base value monitoring meter 7 are electrically connected with controller 13 respectively, controller 13 passes through adjusting device 25 promptly respectively: fluid coupling or frequency converter are electrically connected with aerator 10 and booster pump 15, controller 13 calculates and analyzes by the information of content of sulfur dioxide meter 18 and flue gas flow input, draw the seawater amount that enters absorption tower 5, controller 13 calculates and analyzes by the information of thermometer 6 and 7 inputs of acid-base value monitoring meter, draw the aeration rate of the aeration tank 11 that blasts, controller 13 sends signal and indicates adjusting device 25 to regulate booster pump 15 and aerator 10 respectively.Booster pump 15 of the present invention and aerator 10 adopt frequency converter or fluid coupling to regulate, that is: according to the variation of flue gas and ambient parameter, and the supply of corresponding adjusting booster pump 15 rotating speeds and aerator 10, thus reach the purpose of regulating the seawater amount.
Seawater after the desulfurization is discharged by 5 bottoms, absorption tower and is entered aeration tank 11, and the acid seawater of this part mixes in aeration tank 11 in aeration tank 11 with from the most of seawater that does not enter absorption tower 5 behind the combustion system condenser fully, aeration recovers.Aeration fan 10 in the aeration tank 11 blasts a large amount of air and mixes in the seawater, is dissolved in the SO in the seawater
3 2-Be oxidized to SO
4 2-, the CO that reaction simultaneously generates
2The air that is also blasted is discharged.
More than describing is explanation of the invention, is not that institute of the present invention restricted portion is referring to claim to the qualification of invention, and under the situation of spirit of the present invention, the present invention can do any type of modification.
Claims (8)
1. Deuslfurizing system for sea water, it comprises: chimney (1), booster fan (20), heat exchanger (4), absorption tower (5), aerator (10), aeration tank (11), forebay (17) and booster pump (15), the gas outlet of booster fan (20) links to each other with the waste gas inlet of heat exchanger (4) lower end, the waste gas gas outlet of heat exchanger (4) lower end links to each other with the exhaust gas inlet of lower end, absorption tower (5), the exhaust outlet of upper end, absorption tower (5) links to each other with the air inlet of heat exchanger (4) upper end, the exhaust outlet of heat exchanger (4) upper end links to each other with chimney (1), forebay (17) links to each other with the inlet of absorption tower (5) by at least one booster pump in parallel (15), the bottom of forebay (17) also links to each other with the seawater water inlet of aeration tank (11), the liquid outlet on absorption tower (5) links to each other with the inlet of aeration tank (11), the liquid outlet of aeration tank (11) leads to the sea, an aerator (10) is housed in the aeration tank (11) at least, it is characterized in that: Deuslfurizing system for sea water also comprises: controller (13), content of sulfur dioxide meter (18), flue gas flow meter (19), seawater flow meter (14), adjusting device (25), thermometer (6) and acid-base value monitoring meter (7), content of sulfur dioxide meter (18) and flue gas flow meter (19) are connected successively and are contained in the air inlet of booster fan (20), thermometer (6) is contained on the absorption tower (5), acid-base value monitoring meter (7) is contained in the liquid outlet of aeration tank (11), seawater flow meter (14) is contained on the seawater conveyance conduit between booster pump (15) and absorption tower (5), content of sulfur dioxide meter (18), flue gas flow meter (19), seawater flow meter (14), thermometer (6) and acid-base value monitoring meter (7) are electrically connected with controller (13) respectively, controller (13) is electrically connected with aerator (10) and booster pump (15) by adjusting device (25) respectively, and described adjusting device (25) is fluid coupling or frequency converter.
2. Deuslfurizing system for sea water according to claim 1, it is characterized in that: be equipped with from top to bottom successively described absorption tower (5): demister (21), injection well downhole flow regulator (22) and packing layer (23), packing layer (23) is contained on the liquid level (24) of absorption tower (5), described thermometer (6) is contained on the liquid level (24) and the absorption tower (5) between the packing layer (23) of absorption tower (5), the inlet on absorption tower (5) is opened on the absorption tower (5) that injection well downhole flow regulator (22) is located, the exhaust gas inlet of lower end, absorption tower (5) is opened on the absorption tower (5) of liquid level (24) lower end, and the exhaust outlet of absorption tower (5) upper end is opened on the absorption tower (5) of demister (21) upper end.
3. Deuslfurizing system for sea water according to claim 2, it is characterized in that: described aeration tank (11) comprising: water distributing area (12), aeration zone (9) and catchment (8), the water level of water distributing area (12), aeration zone (9) and catchment (8) reduces successively, separate with dividing plate between them, described aeration tank (11) seawater water inlet is opened in water distributing area (12), described aeration tank (11) inlet feeds the aeration zone, described aerator (10) is contained in the aeration zone (9), and described aeration tank (11) liquid outlet is driveed in the catchment (8).
4. Deuslfurizing system for sea water according to claim 3 is characterized in that: described controller (13) is DCS or PLC controller.
5. Deuslfurizing system for sea water according to claim 4 is characterized in that: described forebay (17) link to each other with the inlet of absorption tower (5) by the booster pump (15) of two parallel connections.
6. according to claim 4 or 5 described Deuslfurizing system for sea water, it is characterized in that: the inlet of described booster pump (15) and liquid outlet are equipped with Electrically operated gate (16) respectively.
7. Deuslfurizing system for sea water according to claim 4 is characterized in that: two aerators (10) are housed in described aeration tank (11).
8. Deuslfurizing system for sea water according to claim 4 is characterized in that: the exhaust outlet of the air inlet of described content of sulfur dioxide meter (18) and heat exchanger (4) upper end is equipped with two baffle doors (3) of series connection respectively, and they are driven by motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101182416A CN101143299B (en) | 2007-07-03 | 2007-07-03 | Deuslfurizing system for sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101182416A CN101143299B (en) | 2007-07-03 | 2007-07-03 | Deuslfurizing system for sea water |
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| Publication Number | Publication Date |
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| CN101143299A CN101143299A (en) | 2008-03-19 |
| CN101143299B true CN101143299B (en) | 2010-06-23 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468297B (en) * | 2008-08-19 | 2012-01-25 | 杨东 | Load adjustable aeration apparatus for restoring sea water after desulphurization |
| CN102407067A (en) * | 2010-09-21 | 2012-04-11 | 鞍钢股份有限公司 | Sintering flue gas seawater desulfurization process and desulfurization system |
| CN106029206A (en) * | 2014-09-02 | 2016-10-12 | 富士电机株式会社 | Exhaust gas treatment device and waste water treatment method for exhaust gas treatment device |
| CN110394046B (en) * | 2019-07-08 | 2021-11-05 | 徐州润华环保科技有限公司 | Desulfurization operation optimization expert system |
| CN110743363A (en) * | 2019-09-17 | 2020-02-04 | 上海蓝魂环保科技有限公司 | Flue gas and seawater flow control system for seawater desulfurization of ship |
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| CN1899675A (en) * | 2006-07-12 | 2007-01-24 | 陈玉乐 | Reverse flow type seawater desulfurizing and absorption tower |
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| CN201058282Y (en) * | 2007-07-03 | 2008-05-14 | 杨东 | Sea water desulfurization system |
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| CN1593726A (en) * | 2004-06-21 | 2005-03-16 | 樊金鑫 | Monitoring and automatic control system for wet method flue gas desulfurization technology |
| CN1899676A (en) * | 2006-07-11 | 2007-01-24 | 杨东 | Desulfurizing system for treating smoke produced from industrial burning device |
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Assignee: Beijing Longyuan Environment Protection Engineering Co., Ltd. Assignor: Yang Dong|Chen Ying|Chen Yule Contract record no.: 2011990000609 Denomination of invention: Seawater desulfurization system suitable for frequency change of coal quality Granted publication date: 20100623 License type: Exclusive License Open date: 20080319 Record date: 20110712 |
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Assignee: Beijing Longyuan Environment Protection Engineering Co., Ltd. Assignor: Yang Dong|Chen Ying|Chen Yule Contract record no.: 2011990000609 Date of cancellation: 20160830 |
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Application publication date: 20080319 Assignee: Beijing Longyuan Environment Protection Engineering Co., Ltd. Assignor: Chen Ying|He Qiang|Wang Xiaoli|Yang Dong|Chen Yule Contract record no.: 2016990000371 Denomination of invention: Seawater desulfurization system suitable for frequency change of coal quality Granted publication date: 20100623 License type: Exclusive License Record date: 20160902 |
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Effective date of registration: 20170419 Address after: 100044 Beijing City, Xicheng District, the main street car No. 9 building, building 10, block B2, floor five Co-patentee after: Chen Ying Patentee after: Yang Dong Co-patentee after: Chen Yule Co-patentee after: Beijing Longyuan Environment Protection Engineering Co., Ltd. Address before: 100044, Beijing City, Xicheng District, the main street car No. five building, B2-9 floor, building 9 Co-patentee before: Chen Ying Patentee before: Yang Dong Co-patentee before: Chen Yule |