CN1511620A - Controller of desulfurizing tower - Google Patents
Controller of desulfurizing tower Download PDFInfo
- Publication number
- CN1511620A CN1511620A CNA021589534A CN02158953A CN1511620A CN 1511620 A CN1511620 A CN 1511620A CN A021589534 A CNA021589534 A CN A021589534A CN 02158953 A CN02158953 A CN 02158953A CN 1511620 A CN1511620 A CN 1511620A
- Authority
- CN
- China
- Prior art keywords
- limestone slurry
- flowmeter
- desulfurizing tower
- analyzer
- gas outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 45
- 239000002002 slurry Substances 0.000 claims abstract description 84
- 235000019738 Limestone Nutrition 0.000 claims abstract description 67
- 239000006028 limestone Substances 0.000 claims abstract description 67
- 239000010440 gypsum Substances 0.000 claims abstract description 16
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 29
- 239000000779 smoke Substances 0.000 claims description 29
- 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
- 238000003786 synthesis reaction Methods 0.000 claims description 15
- 238000006477 desulfuration reaction Methods 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- 239000005864 Sulphur Substances 0.000 claims description 6
- 230000023556 desulfurization Effects 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011505 plaster Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000003517 fume Substances 0.000 abstract 7
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The present invention discloses one controller of desulfurizing tower, and belongs to the field of the fume desulfurizing technology. The present invention has high desulfurizing efficiency and lower loss of limestone slurry. The desulfurizing tower of the present invention includes limestone slurry density meter, limestone slurry flowmeter and limestone slurry feeding valve in the limestone slurry inlet pipeline; fume inlet flowmeter and fume inlet SO2 analyzer in the fume inlet pipeline; gypsum slurry pH meter in the gypsum slurry outlet pipeline; fume outlet flowmeter and fume outlet SO2 analyzer in the fume outlet pipeline; and all their output signals are sent to the automatic control and comprehensive analysis and calculation unit. The output signal of the automatic control and comprehensive analysis and calculation unit controls the limestone slurry feeding valve.
Description
Technical field
The present invention relates to the flue gas desulfurization technique field, relate in particular to a kind of control device of desulfurizing tower.
Background technology
The control of lime stone-gypsum method coal burning flue gas desulfurization system desulfurizing tower is the key of whole desulphurization system.The control method of desulfurizing tower is just kept the desulfurizing tower working stability by the pH value of calcium plaster in the control desulfurizing tower at present.But because the variation of pH value can cause the variation of desulfuration efficiency, in fact this control scheme can not guarantee desulfuration efficiency.Simultaneously because the fluctuation of pH value can cause the waste of limestone slurry to increase and the raising of operating cost.
Summary of the invention
At above-mentioned prior art situation and existing problems, technical problem to be solved by this invention provides that a kind of desulfuration efficiency height, limestone slurry waste are little, system complete, put into operation conveniently, safeguard the control device of simple desulfurizing tower.
Technical scheme of the present invention realizes as follows:
A kind of control device of desulfurizing tower comprises gypsum slurries pH meter, smoke inlet flowmeter, smoke inlet SO
2Analyzer, exhanst gas outlet flowmeter, exhanst gas outlet SO
2Analyzer, limestone slurry add valve, limestone slurry densitometer, limestone slurry flowmeter and control automatically and the analysis-by-synthesis computing unit.Its design feature is, connects limestone slurry densitometer, limestone slurry flowmeter and limestone slurry on the limestone slurry entrance pipe of desulfurizing tower one side and adds valve.Connect smoke inlet flowmeter and smoke inlet SO on the smoke inlet pipeline of desulfurizing tower opposite side
2Analyzer.Connect the gypsum slurries pH meter on the calcium plaster export pipeline of desulfurizing tower.Connect exhanst gas outlet flowmeter, exhanst gas outlet SO on the exhanst gas outlet pipeline of desulfurizing tower top
2Analyzer.Described gypsum slurries pH meter, smoke inlet flowmeter, smoke inlet SO
2Analyzer, exhanst gas outlet flowmeter, exhanst gas outlet SO
2The output signal of analyzer, limestone slurry densitometer and limestone slurry flowmeter is sent to automatic control and analysis-by-synthesis computing unit respectively.The output signal control limestone slurry of described automatic control and analysis-by-synthesis computing unit adds valve.
The workflow of above-mentioned automatic control and analysis-by-synthesis computing unit is: 1) according to smoke inlet flowmeter and smoke inlet SO
2The numerical value that analyzer records calculates the SO that enters the desulfurizing tower flue gas
2Flow; 2) reach the calculated value of the required Ca/S of desulfuration efficiency and enter the SO of desulfurizing tower flue gas according to desulfurizing tower
2Flow is determined the CaCO of limestone slurry
3Add inbound traffics, add the CaCO of valve control limestone slurry by limestone slurry
3Add inbound traffics; 3) CaCO that calculates limestone slurry according to the measured value and the densitometric measured value of limestone slurry of limestone slurry flowmeter
3Amount, thereby to the CaCO of limestone slurry
3Addition is regulated; 4) according to the CaCO of the measured value correction limestone slurry of gypsum slurries pH meter
3Addition; 5) according to exhanst gas outlet flowmeter and exhanst gas outlet SO
2The numerical value that analyzer records calculates the relative SO that desulfurizing tower exports flue gas
2Flow; 6) according to the SO of inlet flue gas
2The relative SO of flow and outlet flue gas
2Flow rate calculation desulfurizing tower practical sulphur removal efficient; 7) according to practical sulphur removal efficient the required Ca/S calculated value of desulfurization is revised.
Gypsum slurries pH meter, smoke inlet flowmeter, smoke inlet SO among the present invention
2Analyzer, exhanst gas outlet flowmeter, exhanst gas outlet SO
2The output signal of analyzer, limestone slurry densitometer and limestone slurry flowmeter is sent to automatic control and analysis-by-synthesis computing unit respectively.Automatically control and analysis-by-synthesis computing unit add the CaCO of valve control limestone slurry through after the FEEDFORWARD CONTROL of these signals by limestone slurry
3Add inbound traffics.Therefore, the present invention compares with prior art and possesses following advantage: 1, system complete, the convenience that puts into operation, maintenance are simply.2, the complete and inlet flue gas SO of the addition of desulfurizing tower slurries
2Flow meets the calculated value of Ca/S.3, the consumption minimum of the addition of desulfurizing tower slurries limestone slurry under certain desulfuration efficiency.
Description of drawings
Fig. 1 is an operation principle structure chart of the present invention;
The workflow diagram of automatic control of Fig. 2 the present invention and analysis-by-synthesis computing unit.
The specific embodiment
Referring to Fig. 1, a kind of control device of desulfurizing tower comprises gypsum slurries pH meter 1, smoke inlet flowmeter 2, smoke inlet SO
2Analyzer 3, exhanst gas outlet flowmeter 4, exhanst gas outlet SO
2Analyzer 5, limestone slurry add valve 9, limestone slurry densitometer 7, limestone slurry flowmeter 8 and control automatically and analysis-by-synthesis computing unit 6.Connect limestone slurry densitometer 7, limestone slurry flowmeter 8 and limestone slurry on the limestone slurry entrance pipe of desulfurizing tower 10 1 sides and add valve 9.Connect smoke inlet flowmeter 2 and smoke inlet SO on the smoke inlet pipeline of desulfurizing tower 10 opposite sides
2Analyzer 3.Connect gypsum slurries pH meter 1 on the calcium plaster export pipeline of desulfurizing tower 10.Connect exhanst gas outlet flowmeter 4, exhanst gas outlet SO on the desulfurizing tower 10 top exhanst gas outlet pipelines
2Analyzer 5.Described gypsum slurries pH meter 1, smoke inlet flowmeter 2, smoke inlet SO
2Analyzer 3, exhanst gas outlet flowmeter 4, exhanst gas outlet SO
2The output signal of analyzer 5, limestone slurry densitometer 7 and limestone slurry flowmeter 8 is sent to automatic control and analysis-by-synthesis computing unit 6 respectively.The output signal control limestone slurry of described automatic control and analysis-by-synthesis computing unit 6 adds valve 9.
Referring to Fig. 2, the workflow of above-mentioned automatic control and analysis-by-synthesis computing unit 6 is: 1) according to smoke inlet flowmeter and smoke inlet SO
2The numerical value that analyzer records calculates the SO that enters the desulfurizing tower flue gas
2Flow; 2) reach the calculated value of the required Ca/S of desulfuration efficiency and enter the SO of desulfurizing tower flue gas according to desulfurizing tower
2Flow is determined the CaCO of limestone slurry
3Add inbound traffics, add the CaCO of valve control limestone slurry by limestone slurry
3Add inbound traffics; 3) CaCO that calculates limestone slurry according to the measured value and the densitometric measured value of limestone slurry of limestone slurry flowmeter
3Amount, thereby to the CaCO of limestone slurry
3Addition is regulated; 4) according to the CaCO of the measured value correction limestone slurry of gypsum slurries pH meter
3Addition; 5) according to exhanst gas outlet flowmeter and exhanst gas outlet SO
2The numerical value that analyzer records calculates the relative SO that desulfurizing tower exports flue gas
2Flow; 6) according to the SO of inlet flue gas
2The relative SO of flow and outlet flue gas
2Flow rate calculation desulfurizing tower practical sulphur removal efficient; 7) according to practical sulphur removal efficient the required Ca/S calculated value of desulfurization is revised.
Claims (2)
1. the control device of a desulfurizing tower comprises gypsum slurries pH meter (1), smoke inlet flowmeter (2), smoke inlet SO
2Analyzer (3), exhanst gas outlet flowmeter (4), exhanst gas outlet SO
2Analyzer (5), limestone slurry add valve (9), limestone slurry densitometer (7), limestone slurry flowmeter (8) and control automatically and analysis-by-synthesis computing unit (6), it is characterized in that, connect limestone slurry densitometer (7), limestone slurry flowmeter (8) and limestone slurry on the limestone slurry entrance pipe of desulfurizing tower (10) one sides and add valve (9), connect smoke inlet flowmeter (2) and smoke inlet SO on the smoke inlet pipeline of desulfurizing tower (10) opposite side
2Analyzer (3) connects gypsum slurries pH meter (1) on the calcium plaster export pipeline of desulfurizing tower (10), connect exhanst gas outlet flowmeter (4), exhanst gas outlet SO on the exhanst gas outlet pipeline of desulfurizing tower (10) top
2Analyzer (5), described gypsum slurries pH meter (1), smoke inlet flowmeter (2), smoke inlet SO
2Analyzer (3), exhanst gas outlet flowmeter (4), exhanst gas outlet SO
2The output signal of analyzer (5), limestone slurry densitometer (7) and limestone slurry flowmeter (8) is sent to automatic control and analysis-by-synthesis computing unit (6) respectively, and the output signal control limestone slurry of described automatic control and analysis-by-synthesis computing unit (6) adds valve (9).
2. according to the control device of the described a kind of desulfurizing tower of claim 1, it is characterized in that the workflow of described automatic control and analysis-by-synthesis computing unit (6) is: 1) according to smoke inlet flowmeter and smoke inlet SO
2The numerical value that analyzer records calculates the SO that enters the desulfurizing tower flue gas
2Flow; 2) reach the calculated value of the required Ca/S of desulfuration efficiency and enter the SO of desulfurizing tower flue gas according to desulfurizing tower
2Flow is determined the CaCO of limestone slurry
3Add inbound traffics, add the CaCO of valve control limestone slurry by limestone slurry
3Add inbound traffics; 3) CaCO that calculates limestone slurry according to the measured value and the densitometric measured value of limestone slurry of limestone slurry flowmeter
3Amount, thereby to the CaCO of limestone slurry
3Addition is regulated; 4) according to the CaCO of the measured value correction limestone slurry of gypsum slurries pH meter
3Addition; 5) according to exhanst gas outlet flowmeter and exhanst gas outlet SO
2The numerical value that analyzer records calculates the relative SO that desulfurizing tower exports flue gas
2Flow; 6) according to the SO of inlet flue gas
2The relative SO of flow and outlet flue gas
2Flow rate calculation desulfurizing tower practical sulphur removal efficient; 7) according to practical sulphur removal efficient the required Ca/S calculated value of desulfurization is revised.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021589534A CN1511620A (en) | 2002-12-27 | 2002-12-27 | Controller of desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021589534A CN1511620A (en) | 2002-12-27 | 2002-12-27 | Controller of desulfurizing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1511620A true CN1511620A (en) | 2004-07-14 |
Family
ID=34237249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021589534A Pending CN1511620A (en) | 2002-12-27 | 2002-12-27 | Controller of desulfurizing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1511620A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418612C (en) * | 2005-11-11 | 2008-09-17 | 南京科远控制工程有限公司 | Control method wet method smoke desulfur for elecric power plant |
| CN101477020B (en) * | 2009-01-12 | 2011-06-08 | 北京博奇电力科技有限公司 | Method for measuring slurry density of desulfurizing absorption column |
| CN101430345B (en) * | 2007-11-23 | 2011-09-14 | 贵州电力调度通信局 | Computing method for desulfurizing internet electric quantity of thermal plant |
| CN103197549A (en) * | 2013-03-04 | 2013-07-10 | 华北电力大学 | Soft measurement method and optimal control method of sulfur dioxide in circulating fluidized bed boiler smoke |
| CN105095601A (en) * | 2015-09-02 | 2015-11-25 | 广东电网有限责任公司电力科学研究院 | Simulation modeling method for liquid-solid two-phase flow in desulfurization system of thermal power plant |
| CN105536490A (en) * | 2015-12-23 | 2016-05-04 | 北京首钢自动化信息技术有限公司 | Automatic desulfurization system and method for sintering flue gas |
| CN106390703A (en) * | 2016-05-26 | 2017-02-15 | 河北工程大学 | System for controlling desulphurization of fire coal by using wireless sensor network and red mud |
| CN111229010A (en) * | 2020-01-19 | 2020-06-05 | 福建龙净环保股份有限公司 | Opening control system and opening control method of slurry supply regulating valve |
| CN111408243A (en) * | 2020-05-07 | 2020-07-14 | 西安热工研究院有限公司 | Thermal power generating unit wet desulphurization pH value control system and method |
| CN113731149A (en) * | 2021-08-27 | 2021-12-03 | 华能南京金陵发电有限公司 | Wet desulphurization control method and device |
-
2002
- 2002-12-27 CN CNA021589534A patent/CN1511620A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418612C (en) * | 2005-11-11 | 2008-09-17 | 南京科远控制工程有限公司 | Control method wet method smoke desulfur for elecric power plant |
| CN101430345B (en) * | 2007-11-23 | 2011-09-14 | 贵州电力调度通信局 | Computing method for desulfurizing internet electric quantity of thermal plant |
| CN101477020B (en) * | 2009-01-12 | 2011-06-08 | 北京博奇电力科技有限公司 | Method for measuring slurry density of desulfurizing absorption column |
| CN103197549B (en) * | 2013-03-04 | 2016-04-13 | 华北电力大学 | The hard measurement of Circulating Fluidized Bed Boiler sulfur dioxide in flue gas and optimal control method |
| CN103197549A (en) * | 2013-03-04 | 2013-07-10 | 华北电力大学 | Soft measurement method and optimal control method of sulfur dioxide in circulating fluidized bed boiler smoke |
| CN105095601B (en) * | 2015-09-02 | 2018-07-31 | 广东电网有限责任公司电力科学研究院 | Desulfurization system for thermal power plant liquid fixed double phase flow emulation modelling method |
| CN105095601A (en) * | 2015-09-02 | 2015-11-25 | 广东电网有限责任公司电力科学研究院 | Simulation modeling method for liquid-solid two-phase flow in desulfurization system of thermal power plant |
| CN105536490A (en) * | 2015-12-23 | 2016-05-04 | 北京首钢自动化信息技术有限公司 | Automatic desulfurization system and method for sintering flue gas |
| CN105536490B (en) * | 2015-12-23 | 2018-02-27 | 北京首钢自动化信息技术有限公司 | The automatic desulphurization system of one kind sintering flue gas and its method |
| CN106390703A (en) * | 2016-05-26 | 2017-02-15 | 河北工程大学 | System for controlling desulphurization of fire coal by using wireless sensor network and red mud |
| CN111229010A (en) * | 2020-01-19 | 2020-06-05 | 福建龙净环保股份有限公司 | Opening control system and opening control method of slurry supply regulating valve |
| CN111229010B (en) * | 2020-01-19 | 2022-04-26 | 福建龙净环保股份有限公司 | Opening control system and opening control method of slurry supply regulating valve |
| CN111408243A (en) * | 2020-05-07 | 2020-07-14 | 西安热工研究院有限公司 | Thermal power generating unit wet desulphurization pH value control system and method |
| CN111408243B (en) * | 2020-05-07 | 2023-09-15 | 西安热工研究院有限公司 | Wet desulfurization pH value control system and method for thermal power generating unit |
| CN113731149A (en) * | 2021-08-27 | 2021-12-03 | 华能南京金陵发电有限公司 | Wet desulphurization control method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1511620A (en) | Controller of desulfurizing tower | |
| CN209968041U (en) | Novel limestone gypsum method desulfurization oxidation fan governing system | |
| CN102489144B (en) | Measure apparatus of flue gas desulphurization slurry pH value and density by using wet method | |
| CN100493679C (en) | Method of controlling fume speed inside desulfurizing absorption tower | |
| CN109092045A (en) | A kind of limestone-gypsum method flue gas desulfurization slurries oxidation controlling method | |
| CN105536488A (en) | Control method for SO2 during semi-dry desulfurization | |
| CN101468288B (en) | Desulfurizer suitable for sulfuric dioxide of large-scope change and control method thereof | |
| CN205650049U (en) | Wet flue gas desulfurization pH value monitoring system | |
| CN114749007A (en) | Automatic control system for wet flue gas desulfurization | |
| CN213160199U (en) | Closed-loop control's desulfurization system | |
| CN2592263Y (en) | Control device for desulfurizing tower | |
| CN216825636U (en) | Automatic control device of wet flue gas desulfurization system | |
| CN207187485U (en) | Wet flue gas desulfurization oxidation fan energy saving system | |
| CN111408243B (en) | Wet desulfurization pH value control system and method for thermal power generating unit | |
| CN201744300U (en) | Dry flue gas desulfurization system | |
| CN201662492U (en) | Multifunctional slurry property measuring device | |
| CN216093072U (en) | Energy-saving control device for wet desulphurization circulating pump | |
| CN206108958U (en) | Desulphurization waste water treatment system | |
| CN206440653U (en) | Desulfuration absorbing tower pH value measurement apparatus | |
| CN213375927U (en) | Coal fired power plant wet flue gas desulfurization limestone slurry pulse control system | |
| CN204582946U (en) | Air curtain, water curtain desulfuring and denitrifying apparatus | |
| CN1511618A (en) | Device for controlling liquid level of desulfurizing tower | |
| CN208642294U (en) | A kind of desulfurizer device in coal burning flue gas desulfurization Tower System | |
| CN2587500Y (en) | Apparatus for controlling thionizer liquid level | |
| CN210894189U (en) | PH value measurement system used on desulfurization absorption tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |