CN104959015A - Flue gas desulphurization automatic control system capable of realizing thorough emission of flue gas and desulphurization method - Google Patents
Flue gas desulphurization automatic control system capable of realizing thorough emission of flue gas and desulphurization method Download PDFInfo
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- CN104959015A CN104959015A CN201510306593.9A CN201510306593A CN104959015A CN 104959015 A CN104959015 A CN 104959015A CN 201510306593 A CN201510306593 A CN 201510306593A CN 104959015 A CN104959015 A CN 104959015A
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Abstract
The invention relates to a flue gas desulphurization control system and discloses a flue gas desulphurization automatic control system capable of realizing thorough emission of flue gas. The flue gas desulphurization automatic control system comprises a desulphurization absorbing tower, a main controller, a plurality of slurry feeding pumps, a plurality of oxidation fans and a plurality of slurry circulating pumps, wherein an original flue gas analyzer, a purified flue gas analyzer and a slurry analyzer are installed on the desulphurization absorbing tower, one ends of the slurry circulating pumps are connected with the upper part of the desulphurization absorbing tower, the other ends of the slurry circulating pumps are connected with the lower part of the desulphurization absorbing tower, air outlets of all the oxidation fans are connected with the lower part of the desulphurization absorbing tower, discharge outlets of the plurality of slurry feeding pumps are connected with the upper part of the desulphurization absorbing tower, the plurality of slurry feeding pumps, the plurality of oxidation fans and the plurality of slurry circulating pumps are all provided with a frequency conversion device, and the slurry feeding pumps, the oxidation fans, the slurry circulating pumps and the frequency conversion devices are all electrically connected with the PID controller. The flue gas desulphurization automatic control system realizes continuous adjusting of the rotating speed of a motor and thorough emission of flue gas. The invention also relates to a desulphurization method using the flue gas desulphurization control system.
Description
Technical field
The present invention relates to a kind of flue gas desulfurization control system, a kind of flue gas desulfurization automatic control system that can realize ultra-clean discharge, the invention still further relates to the sulfur method of this flue gas desulfurization automatic control system specifically.
Background technology
In Air Pollution Control field, people extensively adopt wet desulfurizing process to remove environmentally harmful composition in flue gas and (are mainly SO
2).Wet desulfurizing process completes in desulfuration absorbing tower (wet sprinkling absorption tower), desulfuration absorbing tower is built with the absorbent (lime stone slurry) for absorbing harmful substances in flue gas, absorbent is in the process absorbing harmful substances in flue gas, harmful components generation chemical reaction in absorbent and flue gas, generates calcium sulfite, calcium sulfate etc.
At present, the up-to-date standard limit of smog release of national regulation is for being not more than 50mg/Nm
3, and existing wet process of FGD enterprise can only realize 35 ~ 50mg/Nm
3discharge, namely also existing wet process of FGD enterprise has just just reached current discharging standards.But along with the environmental protection consciousness of people is more and more stronger, the fume emission index of national regulation also will improve constantly, therefore need to develop a kind of novel flue gas desulfurization control system, the discharge standard that country is current can not only be met, and the current discharge standard of country can also be exceeded on a large scale; Meanwhile, if this novel flue gas desulfurization control system can also meet newly-built and requirement that is transformation project simultaneously, so novel flue gas desulfurization control system will be easy to be promoted.
Also there is the place had much room for improvement as follows in existing flue gas desulfurization control system: 1, the supply coverage bias of slurries (absorbent) and oxidized input air is larger; 2, the desulfuration efficiency of desulfuration absorbing tower is unstable, and the SO in desulfuration absorbing tower exit
2concentration is always at 35 ~ 50mg/Nm
3scope fluctuation.
Find through research, the basic reason of above-mentioned phenomenon is caused to be that the reaction of desulfuration absorbing tower inner absorbent and flue gas is insufficient, simultaneously, people also find when fluctuation appears in the desulfuration efficiency of desulfuration absorbing tower, the pH value of the slurries (absorbent) in desulfuration absorbing tower also there will be fluctuation, desulfuration efficiency fluctuation is larger, and the pH value change of slurries (absorbent) also can be greatly.The pH value of the slurries (absorbent) in desulfuration absorbing tower is the concentrated expression of sulfate radical in slurries, inferior sulfate radical, carbonate equal size, and the change of pH value will affect the consumption of desulfuration efficiency, gypsum qualitt, lime stone.
Further research shows, when the pH value of slurries is 5.3 ~ 5.75, and CaCO in absorbent
3content lower, the harmful components in absorbent and flue gas react the most abundant, and the chemical reaction in desulfuration absorbing tower (1) arrives balance substantially, and now gypsum qualitt is best, and desulfuration efficiency is the highest.
At present, there are two kinds of desulfurization automatic control systems on the market, respectively the structure of above-mentioned two kinds of Desulfurization Control Systems be described now:
As shown in Figure 2, the first desulfurization automatic control system (traditional desulfurization automatic control system) comprises desulfuration absorbing tower 1, master controller, multiple slurries feed pump 3, multiple oxidation fan 4 and multiple slurry circulating pump 5, described desulfuration absorbing tower 1 is provided with former flue gas analyzer 6, neat stress analyzer 7 and slurries analyzer 8, described multiple slurry circulating pump 5 is all connected with desulfuration absorbing tower 1 top one end, the other end is connected with desulfuration absorbing tower 1 bottom, the air outlet of described multiple oxidation fan 4 is all connected with desulfuration absorbing tower 1 bottom, the discharging opening of described multiple slurries feed pump 3 is all connected with desulfuration absorbing tower 1 top, described former flue gas analyzer 6, neat stress analyzer 7, slurries analyzer 8, slurries feed pump 3, oxidation fan 4, slurry circulating pump 5 is all electrically connected with master controller.
In the first desulfurization automatic control system, the master controller of desulfurization automatic control system is DCS controller 22, slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5 all adopt the pattern of power frequency start and stop (opening or close one of them pump housing or motor) to control, and slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5 are not all installed the converter plant 9 that can realize 0-50Hz converting operation.
Under the control model of the first desulfurization automatic control system, the supply coverage bias of slurries (absorbent) and oxidized input air is larger, the continuous adjustment of raw material (water resource, lime stone slurry etc.) can not be realized, easily produce and regulate advanced or control lag; Meanwhile, the fluctuation range of the pH value of desulfuration absorbing tower 1 inner absorbent is also comparatively large, the SO in desulfuration absorbing tower 1 exit
2concentration is at 40 ~ 50mg/Nm
3scope fluctuates; Finally, the first desulfurization automatic control system is impacted comparatively large in shutdown process to motor and electrical network, and wastes a large amount of electric energy, can not accomplish energy-saving run.
The second desulfurization automatic control system for denomination of invention be the structure disclosed in " in a kind of wet desulfurizing process the energy-saving control system of serum recycle circulating pump and method (publication number is CN103321885A) ", the slurry circulating pump 5 of above-mentioned the second desulfurization automatic control system is provided with converter plant 9, and adopts automaton to control the duty of slurry circulating pump 5.
In the second desulfurization automatic control system, the master controller of desulfurization automatic control system is still DCS controller, slurries feed pump 3 and oxidation fan still adopt the pattern of power frequency start and stop to control, and slurries feed pump 3 and oxidation fan 4 all do not install the converter plant 9 that can realize 0-50Hz converting operation.
Under the control model of the second desulfurization automatic control system, because slurries feed pump 3 and oxidation fan can not realize the automatic adjustment of rotating speed, therefore still there is absorbent and the insufficient problem of smoke reaction in the second desulfurization automatic control system, the supply coverage bias of slurries (absorbent) and oxidized input air is still larger, or the continuous adjustment of raw material (water resource, lime, lime stone etc.) can not be realized, or there is the problem regulating advanced or control lag; Meanwhile, due to the second desulfuration absorbing tower 1 or the pH value of desulfuration absorbing tower 1 inner absorbent can not be made to be stabilized between 5.3 ~ 5.75, therefore there is the large problem of fluctuation range in the desulfuration efficiency of the second desulfurization automatic control system; Finally, due to slurries feed pump 3 and oxidation fan 4 with all do not install converter plant 9, slurries feed pump 3 and oxidation fan 4 still can not regulate self rotating speed according to load variations automatically, therefore the second desulfurization automatic control system still exists waste electric energy, can not accomplish the problem of energy-saving run.
Summary of the invention
The first object of the present invention is the weak point in order to overcome background technology, and a kind of flue gas desulfurization automatic control system that can realize ultra-clean discharge is provided, it can not only be applicable to transformation project, cost is low, and pH value in absorbent can be stable maintain 5.3 ~ 5.75, fully, desulfuration efficiency can reach 99%, the SO in the exit of desulfuration absorbing tower for absorbent and smoke reaction
2concentration is 10 ~ 35mg/Nm
3.
Another object of the present invention is the weak point in order to overcome background technology, and provides the sulfur method adopting this flue gas desulfurization automatic control system.
In order to realize the first object of the present invention, technical scheme of the present invention is: the flue gas desulfurization automatic control system that can realize ultra-clean discharge, comprise desulfuration absorbing tower, master controller, multiple slurries feed pump, multiple oxidation fan and multiple slurry circulating pump, described desulfuration absorbing tower is provided with former flue gas analyzer, neat stress analyzer and slurries analyzer, described equal one end of multiple slurry circulating pump is connected with desulfuration absorbing tower top, the other end is connected with desulfuration absorbing tower bottom, the air outlet of described multiple oxidation fan is all connected with desulfuration absorbing tower bottom, the discharging opening of described multiple slurries feed pump is all connected with desulfuration absorbing tower top, described former flue gas analyzer, neat stress analyzer, slurries analyzer is all electrically connected with master controller, it is characterized in that: described master controller is PID controller, described multiple slurries feed pump, multiple oxidation fan and multiple slurry circulating pump are all provided with converter plant, described slurries feed pump, oxidation fan, slurry circulating pump and converter plant are all electrically connected with PID controller, described converter plant is to realize the frequency converter of 0-50Hz converting operation or interior feedback chopper.
The second object of the present invention is achieved by the following technical solution: the sulfur method that can realize the flue gas desulfurization automatic control system of ultra-clean discharge, it is characterized in that: it comprises following processing step: step 1: on each slurries feed pump, oxidation fan and slurry circulating pump, all converter plant is installed, and adopts PID controller as master controller; Step 2: start slurries feed pump, oxidation fan and slurry circulating pump successively, pass into former flue gas in desulfuration absorbing tower; Step 3: former flue gas analyzer gathers the data of former flue gas, and by the data information transfer that collects to PID controller; Slurries analyzer gathers the data of slurries in desulfuration absorbing tower, and by the data information transfer that collects to PID controller; The data of the neat stress that the collection of neat stress analyzer is discharged in desulfuration absorbing tower, and by the data information transfer that collects to PID controller; Step 4: respective service data information is passed to PID controller by slurries feed pump, oxidation fan and slurry circulating pump respectively; Step 5:PID controller is according to the data message gathered from former flue gas analyzer, neat stress analyzer, slurries analyzer, slurries feed pump, oxidation fan, slurry circulating pump, and whole system realizes the demand of the oxygen amount of feeding, the slurries amount of feeding and slurry circulating pump needed for the ultra-clean discharge of flue gas, calculates the optimum speed of each slurries feed pump, oxidation fan and slurry circulating pump respectively; Step 6:PID controller, according to the optimum speed of slurries feed pump, oxidation fan and slurry circulating pump, exports corresponding control signal to each converter plant, and converter plant, according to the control signal received, controls the respective pump housing or motor runs with optimum speed.
In technique scheme, described converter plant is to realize the frequency converter of 0-50Hz converting operation or interior feedback chopper.
The present invention adopts high accuracy on-line chemical analysis instrument to monitor in real time controlled device, and manual intervention is few, intelligence degree is high, fast response time, in advance anticipation disposal ability are strong.
The present invention can not only meet the newly-built and suitable project of transformation simultaneously, required cost is low, and the pH value in absorbent can be stable maintains between 5.3 ~ 5.75, absorbent and smoke reaction abundant, desulfuration efficiency can reach 99%, the SO in the exit of desulfuration absorbing tower
2concentration is 10 ~ 35mg/Nm
3.
The present invention adopts multi-parameter closed-loop adjustment, realizes the continuous adjustment to motor speed, achieves the accurate control of production raw material supply, reduces production cost, effectively improve dust-removal and desulfurizing efficiency, realizes the ultra-clean discharge of flue gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of the first Desulfurization Control Systems.
1-desulfuration absorbing tower in figure, 21-PID controller, 22-DCS controller, 3-slurries feed pump, 4-oxidation fan, 5-slurry circulating pump, the former flue gas analyzer of 6-, 7-neat stress analyzer, 8-slurries analyzer, 9-converter plant.
Detailed description of the invention
Describe performance of the present invention in detail below in conjunction with accompanying drawing, but they do not form limitation of the invention, only for example.Make advantage of the present invention clearly and easy understand by explanation simultaneously.
As shown in Figure 1, the flue gas desulfurization automatic control system of ultra-clean discharge can be realized, comprise desulfuration absorbing tower 1, master controller, multiple slurries feed pump 3, multiple oxidation fan 4 and multiple slurry circulating pump 5, described desulfuration absorbing tower 1 is provided with former flue gas analyzer 6, neat stress analyzer 7 and slurries analyzer 8, described multiple slurry circulating pump 5 is all connected with desulfuration absorbing tower 1 top one end, the other end is connected with desulfuration absorbing tower 1 bottom, the air outlet of described multiple oxidation fan 4 is all connected with desulfuration absorbing tower 1 bottom, the discharging opening of described multiple slurries feed pump 3 is all connected with desulfuration absorbing tower 1 top, described former flue gas analyzer 6, neat stress analyzer 7, slurries analyzer 8 is all electrically connected with master controller, it is characterized in that: described master controller is PID controller 21, described multiple slurries feed pump 3, multiple oxidation fan 4 and multiple slurry circulating pump 5 are all provided with converter plant 9, described slurries feed pump 3, oxidation fan 4, slurry circulating pump 5 and converter plant 9 are all electrically connected with PID controller 21.
In practical work process, the present invention includes following processing step: step 1: on each slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5, converter plant 9 is all installed, and adopt PID controller 21 as master controller; Step 2: start slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5 successively, pass into former flue gas in desulfuration absorbing tower 1; Step 3: former flue gas analyzer 6 gathers the data of former flue gas, and by the data information transfer that collects to PID controller 21; Slurries analyzer 8 gathers the data of slurries in desulfuration absorbing tower 1, and by the data information transfer that collects to PID controller 21; Neat stress analyzer 7 gathers the data of the neat stress of discharge in desulfuration absorbing tower 1, and by the data information transfer that collects to PID controller 21; Step 4: respective service data information is passed to PID controller 21 by slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5 respectively; Step 5:PID controller 21 is according to the data message gathered from former flue gas analyzer 6, neat stress analyzer 7, slurries analyzer 8, slurries feed pump 3, oxidation fan 4, slurry circulating pump 5, and whole system realizes the demand of the oxygen amount of feeding, the slurries amount of feeding and slurry circulating pump 5 needed for the ultra-clean discharge of flue gas, calculates the optimum speed of each slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5 respectively; Step 6:PID controller 21 is according to the optimum speed of slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5, corresponding control signal is exported to each converter plant 9, converter plant 9, according to the control signal received, controls the respective pump housing or motor runs with optimum speed.
During real work, desulfuration absorbing tower 1, slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5 are prior art, the present invention all installs converter plant 9 on each slurries feed pump 3, oxidation fan 4 and slurry circulating pump 5, and adopt PID controller 21 as master controller, be also changed to PID controller 21 by existing DCS controller for 22.
Converter plant 9 is connected to each self-corresponding motor or the pump housing, and for the rotating speed of regulable control motor or the pump housing separately.During real work, converter plant can adopt frequency converter, interior feedback chopper, feedback chopper in being preferably.
Former flue gas analyzer 6 and neat stress analyzer 7 include pressure sensor, temperature sensor, SO
2analyzers etc., the chemical composition of the former flue gas of former flue gas analyzer 6 pairs of desulfuration absorbing tower porch carries out on-line monitoring, and the chemical composition of the neat stress in neat stress analyzer 7 pairs of desulfuration absorbing tower exits carries out on-line monitoring.
Slurries analyzer 8 comprises pH meter, densitometer etc.
PID controller 21 is for gathering Gas Parameters, slurried mathematic(al) parameter and device action parameter; Gas Parameters can comprise flue gas flow, pressure, temperature, sulfur content etc., can the equipment of collecting work parameter be various equipment in wet desulfurizing process, such as export the breeze door, oxidation fan, converter plant, pressure sensor etc.; Slurried mathematic(al) parameter comprises slurry pH value, serum density value etc.; Device action parameter is the Common Parameters of the said equipment, as the rotating speed etc. of motor or the pump housing; PID controller 21 pairs of above-mentioned parameter information are carried out analysis and are judged, determine the frequency that oxidation wind demand, lime stone slurry demand and motor run, and export control signal to converter plant.
PID controller 21 can change real-time response according to the fluctuation of former smoke chemistry composition, slurries chemical composition and adjust the proportioning of lime stone slurry and oxidation wind.
As shown in table 1, applicant is in order to can the advantage that has compared with the first desulfurization automatic control system of explanation the present invention clearly, and the present invention and the first desulfurization automatic control system contrast by staff, and its comparing result is as follows:
Table 1
As seen from the above table, the present invention by installing converter plant 9 on each pump housing or motor, and after existing DCS controller is changed to PID controller 21, desulfuration efficiency of the present invention is obviously strengthened, the SO in the exit of desulfuration absorbing tower 1
2concentration obviously reduces (10 ~ 35mg/Nm
3), achieve the ultra-clean discharge of flue gas, not only meet the discharge standard that country is current, but also exceeded national current discharge standard on a large scale, meanwhile, because the present invention only needs to install converter plant 9 and PID controller 21, therefore the present invention can meet project reconstruction requirement, construction cost is low, is suitable for promoting on a large scale.
Other unaccounted part all belongs to prior art.
Claims (3)
1. can realize the flue gas desulfurization automatic control system of ultra-clean discharge, comprise desulfuration absorbing tower (1), master controller, multiple slurries feed pump (3), multiple oxidation fan (4) and multiple slurry circulating pump (5), described desulfuration absorbing tower (1) is provided with former flue gas analyzer (6), neat stress analyzer (7) and slurries analyzer (8), described multiple slurry circulating pump (5) is all connected with desulfuration absorbing tower (1) top one end, the other end is connected with desulfuration absorbing tower (1) bottom, the air outlet of described multiple oxidation fan (4) is all connected with desulfuration absorbing tower (1) bottom, the discharging opening of described multiple slurries feed pump (3) is all connected with desulfuration absorbing tower (1) top, described former flue gas analyzer (6), neat stress analyzer (7), slurries analyzer (8) is all electrically connected with master controller, it is characterized in that: described master controller is PID controller (21), described multiple slurries feed pump (3), multiple oxidation fan (4) and multiple slurry circulating pump (5) are all provided with converter plant (9), described slurries feed pump (3), oxidation fan (4), slurry circulating pump (5) and converter plant (9) are all electrically connected with PID controller (21), described converter plant (9) is for can realize the frequency converter of 0-50Hz converting operation or interior feedback chopper.
2. can realize the sulfur method of the flue gas desulfurization automatic control system of ultra-clean discharge according to claim 1, it is characterized in that: it comprises following processing step:
Step 1: all install converter plant (9) on each slurries feed pump (3), oxidation fan (4) and slurry circulating pump (5), and adopt PID controller (21) as master controller;
Step 2: start slurries feed pump (3), oxidation fan (4) and slurry circulating pump (5) successively, pass into former flue gas in desulfuration absorbing tower (1);
Step 3: former flue gas analyzer (6) gathers the data of former flue gas, and by the data information transfer that collects to PID controller (21); Slurries analyzer (8) gathers the data of desulfuration absorbing tower (1) interior slurries, and by the data information transfer that collects to PID controller (21); Neat stress analyzer (7) gathers the data from the neat stress of discharge in desulfuration absorbing tower (1), and by the data information transfer that collects to PID controller (21);
Step 4: respective service data information is passed to PID controller (21) by slurries feed pump (3), oxidation fan (4) and slurry circulating pump (5) respectively;
Step 5:PID controller (21) is according to the data message gathered from former flue gas analyzer (6), neat stress analyzer (7), slurries analyzer (8), slurries feed pump (3), oxidation fan (4), slurry circulating pump (5), and whole system realizes the demand of the oxygen amount of feeding, the slurries amount of feeding and slurry circulating pump (5) needed for the ultra-clean discharge of flue gas, calculate the optimum speed of each slurries feed pump (3), oxidation fan (4) and slurry circulating pump (5) respectively;
Step 6:PID controller (21) is according to the optimum speed of slurries feed pump (3), oxidation fan (4) and slurry circulating pump (5), corresponding control signal is exported to each converter plant (9), the control signal that converter plant (9) basis receives, controls the respective pump housing or motor runs with optimum speed.
3. the sulfur method that can realize the flue gas desulfurization automatic control system of ultra-clean discharge according to claim 2, is characterized in that: described converter plant (9) is for can realize the frequency converter of 0-50Hz converting operation or interior feedback chopper.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512660A (en) * | 2016-10-17 | 2017-03-22 | 青岛天人环境股份有限公司 | Intelligent alcohol amine decarburization system and method based on multi-input fuzzy PID control algorithm |
| CN108043208A (en) * | 2018-01-17 | 2018-05-18 | 华电滕州新源热电有限公司 | Wet desulphurization oxidation wind air quantity control method, control system and wet desulphurization device |
| WO2018214413A1 (en) * | 2017-05-23 | 2018-11-29 | 常熟凯弘节能环保科技有限公司 | Quantitative emulsification and desulfurization process for flue gases |
| CN109126408A (en) * | 2018-08-23 | 2019-01-04 | 南京天创电子技术有限公司 | A kind of wet desulphurization device and intelligent control method |
| CN110215827A (en) * | 2019-07-03 | 2019-09-10 | 西安热工研究院有限公司 | Serum recycle system and its control method based on speed regulation type hydrodynamic coupler |
| CN114210189A (en) * | 2021-11-08 | 2022-03-22 | 珠海长炼石化设备有限公司 | Hydrogen desulfurization absorption tower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151481A (en) * | 2011-02-17 | 2011-08-17 | 大连海事大学 | Monitoring and automatic control system in desulfurization process for magnesium-based seawater ships |
| CN202823158U (en) * | 2012-07-11 | 2013-03-27 | 贵州电力试验研究院 | Automatic control structure for potential of hydrogen (pH) and desulfurization degree of size of wet desulfurization absorption tower using limestone |
| CN103321885A (en) * | 2013-06-21 | 2013-09-25 | 上海宝钢节能技术有限公司 | Energy-saving control system and energy-saving control method for slurry circulating pumps in wet desulfurization process |
| CN104020742A (en) * | 2014-06-06 | 2014-09-03 | 张家港市鸿嘉数字科技有限公司 | Boiler desulfuration control system based on Internet of Things |
| CN204724018U (en) * | 2015-06-05 | 2015-10-28 | 武汉龙净环保工程有限公司 | The flue gas desulfurization automatic control system of ultra-clean discharge can be realized |
-
2015
- 2015-06-05 CN CN201510306593.9A patent/CN104959015A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151481A (en) * | 2011-02-17 | 2011-08-17 | 大连海事大学 | Monitoring and automatic control system in desulfurization process for magnesium-based seawater ships |
| CN202823158U (en) * | 2012-07-11 | 2013-03-27 | 贵州电力试验研究院 | Automatic control structure for potential of hydrogen (pH) and desulfurization degree of size of wet desulfurization absorption tower using limestone |
| CN103321885A (en) * | 2013-06-21 | 2013-09-25 | 上海宝钢节能技术有限公司 | Energy-saving control system and energy-saving control method for slurry circulating pumps in wet desulfurization process |
| CN104020742A (en) * | 2014-06-06 | 2014-09-03 | 张家港市鸿嘉数字科技有限公司 | Boiler desulfuration control system based on Internet of Things |
| CN204724018U (en) * | 2015-06-05 | 2015-10-28 | 武汉龙净环保工程有限公司 | The flue gas desulfurization automatic control system of ultra-clean discharge can be realized |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106512660A (en) * | 2016-10-17 | 2017-03-22 | 青岛天人环境股份有限公司 | Intelligent alcohol amine decarburization system and method based on multi-input fuzzy PID control algorithm |
| CN106512660B (en) * | 2016-10-17 | 2019-09-10 | 青岛天人环境股份有限公司 | Intelligent hydramine decarbonization system and method based on multi input Fuzzy PID |
| WO2018214413A1 (en) * | 2017-05-23 | 2018-11-29 | 常熟凯弘节能环保科技有限公司 | Quantitative emulsification and desulfurization process for flue gases |
| CN108043208A (en) * | 2018-01-17 | 2018-05-18 | 华电滕州新源热电有限公司 | Wet desulphurization oxidation wind air quantity control method, control system and wet desulphurization device |
| CN109126408A (en) * | 2018-08-23 | 2019-01-04 | 南京天创电子技术有限公司 | A kind of wet desulphurization device and intelligent control method |
| CN110215827A (en) * | 2019-07-03 | 2019-09-10 | 西安热工研究院有限公司 | Serum recycle system and its control method based on speed regulation type hydrodynamic coupler |
| CN114210189A (en) * | 2021-11-08 | 2022-03-22 | 珠海长炼石化设备有限公司 | Hydrogen desulfurization absorption tower |
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