CN201955671U - Remote monitoring system for pH values and desulfurizing agent feed of desulfuration absorber tower of thermal power plant - Google Patents
Remote monitoring system for pH values and desulfurizing agent feed of desulfuration absorber tower of thermal power plant Download PDFInfo
- Publication number
- CN201955671U CN201955671U CN2010206661414U CN201020666141U CN201955671U CN 201955671 U CN201955671 U CN 201955671U CN 2010206661414 U CN2010206661414 U CN 2010206661414U CN 201020666141 U CN201020666141 U CN 201020666141U CN 201955671 U CN201955671 U CN 201955671U
- Authority
- CN
- China
- Prior art keywords
- desulfurizing agent
- desulfuration
- remote monitoring
- control adjuster
- values
- 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.)
- Expired - Fee Related
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 17
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 17
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 16
- 238000012544 monitoring process Methods 0.000 title abstract description 11
- 239000006096 absorbing agent Substances 0.000 title abstract description 5
- 239000002002 slurry Substances 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 229920002472 Starch Polymers 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a remote monitoring system for pH values and desulfurizing agent feed of a desulfuration absorber tower of a thermal power plant, which is characterized by comprising a master control adjuster, an auxiliary control adjuster, an online instrument, a wireless transmitting device and a slurry supply valve, the auxiliary control adjuster adopts output of the master control adjuster as set values, the slurry supply valve controls flow of desulfurizing agent, the master control adjuster is serially connected with the auxiliary control adjuster, the wireless transmitting device is connected with the online instrument, and the slurry supply valve is disposed at the rear of the auxiliary control adjuster. The remote monitoring system has the advantages that by means of remote monitoring of the pH values and the desulfurizing agent feed of the desulfuration absorber tower of the thermal power plant, operation conditions of the desulfuration absorber tower are monitored by a competent environmental-protection department at any time, normal operation of a desulfuration system is ensured, and desulfuration efficiency is improved.
Description
Technical field
The utility model relates to the long distance control system of a kind of heat-engine plant desulfurized absorption tower pH value and desulfurizing agent supply.
Background technology
Flue gas desulfurization is to control SO at present in the world
2Pollute the main means that adopt, the limestone wet-process sulfur removal technology is very strong to the adaptive faculty of ature of coal, can be applied to the coal of various sulfur content.The desulfurizing agent of limestone wet-process sulfur removal technology is the slurries that agstone is made.This value of pH value of slurries is one of WFGD (wet process of FGD) device operation most important control parameters in the absorption tower, is one of principal element that influences desulfurization degree, oxygenation efficiency, absorbing agent utilization factor and system's fouling.Mainly control the pH value by control lime stone slurry quantity delivered in actual motion, generally the increase desulfuration efficiency along with the pH value also increases, but is increased to a certain degree, and desulfurization degree just almost no longer increases.Therefore select suitable pH value, most important to the desulphurization system operation, usually, the pH value of absorption tower stock tank maintains between 5.2～6.1.The equipment of slurry pH value in the existing control absorption tower, automaticity is very low, can't realize the remote monitoring and the interpolation of agstone slurries, influences desulfuration efficiency, therefore, should provide a new technical scheme to address the above problem.
Summary of the invention
The purpose of this utility model is: the long distance control system that provides a kind of heat-engine plant desulfurized absorption tower pH value and desulfurizing agent to supply with.
For achieving the above object, the technical solution adopted in the utility model is:
The long distance control system that heat-engine plant desulfurized absorption tower pH value and desulfurizing agent are supplied with, comprise the master control regulator, starch valve as the confession of pair control regulator, in-line meter, radio transmitting device and the control desulfurizing agent flow of setting value with the output of master control regulator, described master control regulator and secondary control regulator polyphone, described radio transmitting device is connected with in-line meter, the described rear that is arranged at secondary control regulator for the slurry valve.
The long-distance monitoring method that desulfuration absorbing tower pH value and desulfurizing agent are supplied with is: use cascade PID control in desulphurization system, master control regulator and secondary control regulator polyphone are got up to work, the output of master control regulator is as the setting value of pair control regulator, the output of submaster controller goes to handle for the slurry valve, to realize definite value control to variable, secondary control regulator has the effect of " coarse adjustment ", master selector has the function of " fine tuning ", thereby its controlling performance is further enhanced, act on once disturbance and secondary disturbance in the cascade control system, improved the work efficiency of desulphurization system.
The utility model has the advantages that: by the remote monitoring to heat-engine plant desulfurized absorption tower pH value and desulfurizing agent supply, the operation conditions of desulfuration absorbing tower under the monitoring of environmental protection competent authorities, has been guaranteed the normal operation of desulphurization system at any time, has improved desulfuration efficiency.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structured flowchart of the present utility model.
Wherein: 1, master control regulator, 2, secondary control regulator, 3, for the slurry valve, 4, in-line meter, 5, radio transmitting device.
Embodiment
As shown in Figure 1, the long distance control system that the heat-engine plant desulfurized absorption tower of the utility model pH value and desulfurizing agent are supplied with, comprise master control regulator 1, starch valve 3 as the confession of pair control regulator 2, in-line meter 4, radio transmitting device 5 and the control desulfurizing agent flow of setting value with the output of master control regulator 1, master control regulator 1 and secondary control regulator 2 polyphones, radio transmitting device 5 is connected with in-line meter 4, is arranged at the rear of secondary control regulator 2 for slurry valve 3.
The long distance control system that the heat-engine plant desulfurized absorption tower of the utility model pH value and desulfurizing agent are supplied with, utilize pH in-line meter 4 to gather the pH value on heat-engine plant desulfurized absorption tower in real time, the pH value that this value and desulfuration absorbing tower are decided compares, the double circle controling mode that utilizes master control regulator 1 and secondary control regulator 2 to constitute carries out the adjusting of desulfuration absorbing tower pH value, adopt GPRS and short message mode, the situation of change of the heat-engine plant desulfurized absorption tower of remote live on-line monitoring pH value.Carry out remote live by radio transmitting device 5 in the time of between the pH value exceeds 5.2～6.1 and report to the police, and, guaranteed the normal operation of sweetening process with short message mode notice environmental protection competent authorities and the related management personnel of power plant.Automatic control technology is incorporated into the remote monitoring process, in the time of between the pH value exceeds 5.2～6.1, has enabled the remote monitoring that automatic control means are carried out the agstone slurries.Its automatic control means are for using cascade PID control, master control regulator 1 and secondary control regulator 2 polyphones are got up to work, the output of master control regulator 1 is as the setting value of pair control regulator 2, the output of submaster controller 2 goes to handle for slurry valve 3, carrying out the agstone slurries supplies with, secondary control regulator 2 has the effect of " coarse adjustment ", master selector 1 has the function of " fine tuning ", thereby its controlling performance is further enhanced, act on once disturbance and secondary disturbance in the cascade control system, improved the work efficiency of desulphurization system.
Claims (1)
1. the long distance control system that heat-engine plant desulfurized absorption tower pH value and desulfurizing agent are supplied with, it is characterized in that: comprise the master control regulator, starch valve as the confession of pair control regulator, in-line meter, radio transmitting device and the control desulfurizing agent flow of setting value with the output of master control regulator, described master control regulator and secondary control regulator polyphone, described radio transmitting device is connected with in-line meter, the described rear that is arranged at secondary control regulator for the slurry valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206661414U CN201955671U (en) | 2010-12-17 | 2010-12-17 | Remote monitoring system for pH values and desulfurizing agent feed of desulfuration absorber tower of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206661414U CN201955671U (en) | 2010-12-17 | 2010-12-17 | Remote monitoring system for pH values and desulfurizing agent feed of desulfuration absorber tower of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955671U true CN201955671U (en) | 2011-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206661414U Expired - Fee Related CN201955671U (en) | 2010-12-17 | 2010-12-17 | Remote monitoring system for pH values and desulfurizing agent feed of desulfuration absorber tower of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201955671U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553424A (en) * | 2011-11-28 | 2012-07-11 | 中国神华能源股份有限公司 | Method for adjusting pH value of absorption column |
| CN103623690A (en) * | 2013-11-14 | 2014-03-12 | 大唐武安发电有限公司 | Control method for wet process flue gas desulfurization system of thermal power station |
| CN104020795A (en) * | 2014-05-26 | 2014-09-03 | 国家电网公司 | Method for preventing pH value sudden change in desulfurization system of thermal power plant |
| CN109966870A (en) * | 2019-04-12 | 2019-07-05 | 哈尔滨沃华智能发电设备有限公司 | Power plant desulphurization system SO2 emissions Adaptive Control method |
-
2010
- 2010-12-17 CN CN2010206661414U patent/CN201955671U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553424A (en) * | 2011-11-28 | 2012-07-11 | 中国神华能源股份有限公司 | Method for adjusting pH value of absorption column |
| CN102553424B (en) * | 2011-11-28 | 2014-04-02 | 中国神华能源股份有限公司 | Method for adjusting pH value of absorption column |
| CN103623690A (en) * | 2013-11-14 | 2014-03-12 | 大唐武安发电有限公司 | Control method for wet process flue gas desulfurization system of thermal power station |
| CN103623690B (en) * | 2013-11-14 | 2015-12-09 | 大唐武安发电有限公司 | The control method of a kind of thermal power station wet method fume desulfurizing system |
| CN104020795A (en) * | 2014-05-26 | 2014-09-03 | 国家电网公司 | Method for preventing pH value sudden change in desulfurization system of thermal power plant |
| CN104020795B (en) * | 2014-05-26 | 2016-08-17 | 国家电网公司 | A kind of method preventing heat-engine plant desulfurized system pH value from suddenling change |
| CN109966870A (en) * | 2019-04-12 | 2019-07-05 | 哈尔滨沃华智能发电设备有限公司 | Power plant desulphurization system SO2 emissions Adaptive Control method |
| CN109966870B (en) * | 2019-04-12 | 2021-08-31 | 哈尔滨沃华智能发电设备有限公司 | Adaptive control method for sulfur dioxide emission amount of power plant desulfurization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangyin Tianyi Environmental Protection Technology Co., Ltd. Assignor: Yu Ming Contract record no.: 2012320010140 Denomination of utility model: Remote monitoring system for pH values and desulfurizing agent feed of desulfuration absorber tower of thermal power plant Granted publication date: 20110831 License type: Exclusive License Record date: 20120613 |
|
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU TIANYIXIN ENVIRONMENTAL PROTECTION TECHNOLO Free format text: FORMER OWNER: YU MING Effective date: 20140526 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 226400 NANTONG, JIANGSU PROVINCE TO: 215101 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140526 Address after: Town of Wuzhong District road Suzhou city Jiangsu province 215101 No. 88 building 6 room 503 Patentee after: Suzhou Tianyixin Environmental Protection Technology Co., Ltd. Address before: 226400 Jiangsu Tianyi Intelligent Equipment Co., Ltd., Weihe Road, Rudong Industrial Zone, Nantong, Jiangsu Patentee before: Yu Ming |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20171217 |