CN113731149A - Wet desulphurization control method and device - Google Patents
Wet desulphurization control method and device Download PDFInfo
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- CN113731149A CN113731149A CN202110996279.3A CN202110996279A CN113731149A CN 113731149 A CN113731149 A CN 113731149A CN 202110996279 A CN202110996279 A CN 202110996279A CN 113731149 A CN113731149 A CN 113731149A
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
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Abstract
The invention discloses a wet desulphurization control method and a device, wherein the method comprises the following steps: acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time; adjusting the pH value within a preset pH value adjusting range according to the concentration of the sulfur dioxide; and determining the flow rate of the limestone slurry in the absorption tower according to the PH running value and the adjusted PH set value. Thereby realize the stable regulation of absorption tower thick liquid pH value, guarantee to carry out accurate control to absorption tower export sulfur dioxide concentration through the cooperative control of absorption tower thick liquid pH value and absorption tower limestone slurry flow.
Description
Technical Field
The application relates to the technical field of thermal generator set control, in particular to a wet desulphurization control method and device.
Background
In recent years, coal is always used as a main energy source in thermal power generation in China, and the thermal power generation has increasingly received international general attention along with the problem of environmental pollution. As one of the main sources of atmospheric pollutants, the sulfur dioxide discharged by a thermal power generating unit occupies 40% of the total national sulfur dioxide discharge amount, so that the control of the sulfur dioxide discharge of the thermal power generating unit becomes the key for controlling the total national sulfur dioxide discharge amount.
The desulfurization process of the thermal power generating unit is complex and various, and the whole process covers three major types of dry process, semi-dry process and wet process. At present, the wet desulphurization process is the most widely applied and technically mature desulphurization process at present, the desulphurization efficiency is up to more than 90%, and the market coverage rate is up to 85%. The difficulty in controlling the concentration of sulfur dioxide arises from several aspects: firstly, the desulfurization system is complex, has a multi-layer spraying structure and needs reasonable internal coordination; secondly, the open-loop control of the start and stop of the conventional slurry pump can not ensure the accurate control of the sulfur dioxide at the outlet of the absorption tower, so that the set value of the sulfur dioxide has to be reduced to avoid the situation of the instantaneous concentration exceeding the standard; thirdly, the desulfurization efficiency is greatly influenced by factors such as slurry quality (PH value, chloride ion content and density); fourthly, from the characteristics of the slurry preparation process, the actual size of the desulfurizing tower, the wide-load operation of a unit and the like, the pH value control system of the slurry of the absorption tower is a nonlinear object with time variation, large time delay and large inertia. Depending on the PH control, overshoot may occur because the PH feedback is much slower than the rate of change of the flue gas volume.
Therefore, how to ensure the stable adjustment of the pH value of the slurry of the absorption tower and further control the concentration of sulfur dioxide at the outlet of the absorption tower is a technical problem to be solved at present.
Disclosure of Invention
The invention provides a wet desulphurization control method, which is used for solving the technical problem that the pH value of slurry of an absorption tower cannot be stably regulated in the prior art, and further the concentration of sulfur dioxide at an outlet of the absorption tower cannot be effectively controlled, and comprises the following steps:
acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time;
adjusting the pH value within a preset pH value adjusting range according to the concentration of the sulfur dioxide;
and determining the flow rate of the limestone slurry in the absorption tower according to the PH running value and the adjusted PH set value.
Preferably, the adjusting of the PH set value according to the sulfur dioxide concentration within a preset PH set value adjusting range specifically comprises:
when the concentration of the sulfur dioxide is detected to be greater than the preset concentration of the sulfur dioxide, the PH set value is increased within the adjustment range of the preset PH set value;
and when the sulfur dioxide concentration is detected to be less than the preset sulfur dioxide concentration, reducing the PH set value within the preset PH set value adjusting range.
Preferably, the flow rate of the limestone slurry in the absorption tower is determined according to the PH running value and the adjusted PH set value, and specifically comprises the following steps:
when the PH operation value is smaller than the adjusted PH set value, increasing the flow of limestone slurry in the absorption tower;
when the PH operation value is larger than the adjusted PH set value, reducing the flow of limestone slurry in the absorption tower;
and an electromagnetic flow meter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
Preferably, the method further comprises the following steps:
and when the PH set value reaches the preset highest PH set value, increasing the limestone slurry pump and reducing the PH set value.
Correspondingly, the invention also provides a wet desulphurization control device, which comprises:
an acquisition module: the system is used for acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time;
an adjusting module: the system is used for adjusting the PH value according to the concentration of the sulfur dioxide within a preset PH value adjusting range;
a determination module: and the flow rate of the limestone slurry in the absorption tower is determined according to the PH running value and the adjusted PH set value.
Preferably, the adjusting module is specifically configured to:
when the concentration of the sulfur dioxide is detected to be greater than the preset concentration of the sulfur dioxide, the PH set value is increased within the adjustment range of the preset PH set value;
and when the sulfur dioxide concentration is detected to be less than the preset sulfur dioxide concentration, reducing the PH set value within the preset PH set value adjusting range.
Preferably, the determining module is specifically configured to:
when the PH operation value is smaller than the adjusted PH set value, increasing the flow of limestone slurry in the absorption tower;
when the PH operation value is larger than the adjusted PH set value, reducing the flow of limestone slurry in the absorption tower;
and an electromagnetic flow meter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
Preferably, the method further comprises the following steps:
adding a module: and when the PH value reaches the preset highest PH value, increasing the limestone slurry pump and reducing the PH value.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a wet desulphurization control method and a device, wherein the method comprises the following steps: acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time; adjusting the pH value within a preset pH value adjusting range according to the concentration of the sulfur dioxide; and determining the flow rate of the limestone slurry in the absorption tower according to the PH running value and the adjusted PH set value. Thereby realize the stable regulation of absorption tower thick liquid pH value, guarantee that absorption tower export sulfur dioxide concentration reaches emission standard through the cooperative control of absorption tower thick liquid pH value and absorption tower limestone slurry flow.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a wet desulfurization control method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a PH control system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a wet desulphurization control device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As described in the background art, although the existing technology can control the concentration of sulfur dioxide by means of PH in the wet desulphurization process, some existing methods have the problems that the accurate control of the sulfur dioxide in the flue gas at the outlet of the absorption tower cannot be guaranteed, and the like.
In order to solve the above problems, an embodiment of the present application provides a wet desulphurization control method and apparatus, where the method includes: acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time; adjusting the pH value within a preset pH value adjusting range according to the concentration of the sulfur dioxide; and determining the flow rate of the limestone slurry in the absorption tower according to the PH running value and the adjusted PH set value. Thereby realize the stable regulation of absorption tower thick liquid pH value, guarantee to carry out accurate control to absorption tower export sulfur dioxide concentration through the cooperative control of absorption tower thick liquid pH value and absorption tower limestone slurry flow.
Fig. 1 is a schematic flow chart of a wet desulphurization control method according to an embodiment of the present invention, which includes:
s101, acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time.
Specifically, from the viewpoint of the overall reaction process, the wet desulphurization process can be simplified into an acid-base neutralization reaction. Therefore, the pH value of the slurry and the flow rate of the limestone slurry in the process control are two important monitoring indexes, and have decisive influence on the discharge amount of sulfur dioxide. As an important process operation parameter of WFGD, the pH value of the slurry of the absorption tower is generally considered to be between 5.5 and 6.2. The open-loop control of the start and stop of the conventional slurry pump can not ensure the accurate control of the sulfur dioxide in the flue gas at the outlet of the absorption tower, so that the set value of the sulfur dioxide needs to be adjusted down to avoid the situation that the instantaneous concentration exceeds the standard. And acquiring the PH running value of the tower slurry and the sulfur dioxide concentration of the flue gas at the outlet of the absorption tower in real time, and accurately controlling the sulfur dioxide concentration according to the acquired data.
And S102, adjusting the PH value within a preset PH value adjusting range according to the sulfur dioxide concentration.
Specifically, the operator sets the initial PH value of the slurry in the desulfurization absorption tower, and generally sets the PH value of the slurry in the absorption tower to about 5 to 6. And adjusting the PH set value within the adjusting range according to the concentration of the sulfur dioxide in the flue gas at the outlet of the absorption tower.
In order to accurately control the concentration of sulfur dioxide, in a preferred embodiment of the present disclosure, the PH setting value is adjusted within a preset PH setting value adjustment range according to the concentration of sulfur dioxide, specifically:
when the concentration of the sulfur dioxide is detected to be greater than the preset concentration of the sulfur dioxide, the PH set value is increased within the adjustment range of the preset PH set value;
and when the sulfur dioxide concentration is detected to be less than the preset sulfur dioxide concentration, reducing the PH set value within the preset PH set value adjusting range.
Specifically, because limestone slurry pump lacks the continuous adjustment ability to sulfur dioxide concentration, and the thick liquid pH value influences desulfurization efficiency great, and the pH value risees can improve desulfurization efficiency but can increase the limestone consumption, consequently according to the sulfur dioxide concentration that detects, through the automatic adjustment of pH setting value in the control range, adjusts sulfur dioxide concentration. When the sulfur dioxide concentration is detected to be higher than the preset sulfur dioxide concentration, the PH set value is increased within the preset PH set value adjusting range, and when the sulfur dioxide concentration is detected to be lower than the preset sulfur dioxide concentration, the PH set value is decreased within the preset PH set value adjusting range. By the method, the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower is ensured to be in a controllable range.
It should be noted that the above solution of the preferred embodiment is only a specific implementation solution proposed in the present application, and those skilled in the art can adjust the PH setting value according to actual needs based on the concept of the present application, and all of them belong to the protection scope of the present application.
In order to stably adjust the PH, in a preferred embodiment of the present disclosure, the method further includes:
and when the PH set value reaches the preset highest PH set value, increasing the limestone slurry pump and reducing the PH set value.
Specifically, as known from the environmental island process flow and the absorption tower flue gas flow, flue gas in the absorption tower flows upwards in a baffling manner from the bottom and contacts and reacts with the spray slurry. And under the conventional operation working condition, 2-3 slurry pumps are generally started according to the load interval, and 1 slurry pump needs to be additionally started under special conditions. When the PH value reaches the preset highest PH value, the concentration of the sulfur dioxide is relatively high, at the moment, a notification needs to be pushed to request an operator to add a slurry pump, and when the concentration of the sulfur dioxide is reduced, the PH value is reduced.
S103, determining the limestone slurry flow of the absorption tower according to the PH running value and the adjusted PH set value.
Specifically, the flow rate of the limestone slurry in the absorption tower is determined according to the PH running value and the adjusted PH set value.
In order to accurately control the concentration of sulfur dioxide, in a preferred embodiment of the present disclosure, the flow rate of limestone slurry in the absorption tower is determined according to the PH operating value and the adjusted PH set value, specifically:
when the PH operation value is smaller than the adjusted PH set value, increasing the flow of limestone slurry in the absorption tower;
when the PH operation value is larger than the adjusted PH set value, reducing the flow of limestone slurry in the absorption tower;
and an electromagnetic flow meter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
Specifically, if the PH operation value is less than the adjusted PH setting value, the limestone slurry flow rate of the absorption tower is increased, that is, the frequency of the limestone slurry delivery pump is increased, and the actual CaC0 is appropriately increased3Quality requirements; if the PH value is larger than the adjusted PH value, the flow rate of limestone slurry in the absorption tower is reduced, namely the frequency of the limestone slurry conveying pump of the limestone slurry in the absorption tower is reduced, and the actual CaC0 is properly reduced3Quality requirements. An electromagnetic flowmeter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
In order to further illustrate the technical idea of the present invention, the technical solution of the present invention will now be described with reference to specific application scenarios.
From the characteristics of the slurry preparation process, the actual size of the desulfurizing tower, the wide-load operation of a unit and the like, the pH value control system of the slurry of the absorption tower is a nonlinear object with time variation, large time delay and large inertia. Depending on the PH control, overshoot may occur because the PH feedback is much slower than the rate of change of the flue gas volume. As shown in fig. 2, the PH control system has a schematic structural diagram, and a tandem PH feed-forward control system with a flow control loop has an advanced regulation effect, overcomes the problem of system delay, enhances the adaptability of the system, accelerates the regulation process, and thus effectively improves the control performance. Meanwhile, the pH value feed-forward has larger delay due to load change, the pH value adjustment fluctuation is caused by unreasonable feed-forward action adding time, and the adding time and action size of the feed-forward action can be automatically adjusted according to the load, so that the stability of the pH value adjustment is achieved.
The wet desulphurization process can be simplified into an acid-base neutralization reaction. Therefore, the pH value of the slurry and the flow rate of the limestone slurry in the process control are two important monitoring indexes, and have decisive influence on the discharge amount of sulfur dioxide. It is generally believed that the pH of the absorber slurry should be between 5.5 and 6.2. The open-loop control of the start and stop of the conventional slurry pump can not ensure the accurate control of the sulfur dioxide in the flue gas at the outlet of the absorption tower, so that the set value of the sulfur dioxide needs to be adjusted down to avoid the situation that the instantaneous concentration exceeds the standard. And acquiring the PH running value of the tower slurry and the sulfur dioxide concentration of the flue gas at the outlet of the absorption tower in real time, and accurately controlling the sulfur dioxide concentration according to the acquired data.
Because limestone slurry pump lacks the continuous adjustment ability to sulfur dioxide concentration, and thick liquid pH value influences desulfurization efficiency great, and the PH value risees can improve desulfurization efficiency but can increase the limestone consumption, consequently according to the sulfur dioxide concentration that detects, through the automatic adjustment of PH setting value in the control range, adjusts sulfur dioxide concentration. When the sulfur dioxide concentration is detected to be higher than the preset sulfur dioxide concentration, the PH set value is increased within the preset PH set value adjusting range, and when the sulfur dioxide concentration is detected to be lower than the preset sulfur dioxide concentration, the PH set value is decreased within the preset PH set value adjusting range. By the method, the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower is ensured to be in a controllable range. If the PH operation value is less than the adjusted PH set value, the flow rate of limestone slurry in the absorption tower is increased, namely the frequency of a limestone slurry delivery pump is increased, and the actual CaC0 is properly increased3Quality requirements; if the PH value is larger than the adjusted PH value, the flow rate of limestone slurry in the absorption tower is reduced, namely the frequency of the limestone slurry conveying pump of the limestone slurry in the absorption tower is reduced, and the actual CaC0 is properly reduced3Quality requirements. An electromagnetic flowmeter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
Known from the environmental island process flow and the absorption tower flue gas flow, the flue gas in the absorption tower flows upwards in a baffling mode from the bottom and contacts and reacts with the spraying slurry. And under the conventional operation working condition, 2-3 slurry pumps are generally started according to the load interval, and 1 slurry pump needs to be additionally started under special conditions. When the PH value reaches the preset highest PH value, the concentration of the sulfur dioxide is relatively high, at the moment, a notification needs to be pushed to request an operator to add a slurry pump, and when the concentration of the sulfur dioxide is reduced, the PH value is reduced.
By applying the technical scheme, the invention discloses a wet desulphurization control method, which comprises the following steps: acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time; adjusting the pH value within a preset pH value adjusting range according to the concentration of the sulfur dioxide; and determining the flow rate of the limestone slurry in the absorption tower according to the PH running value and the adjusted PH set value. Thereby realize the stable regulation of absorption tower thick liquid pH value, guarantee to carry out accurate control to absorption tower export sulfur dioxide concentration through the cooperative control of absorption tower thick liquid pH value and absorption tower limestone slurry flow.
In order to achieve the above technical object, an embodiment of the present application further provides a wet desulfurization control apparatus, as shown in fig. 3, the apparatus including:
the acquisition module 201: the system is used for acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time;
the adjusting module 202: the system is used for adjusting the PH value according to the concentration of the sulfur dioxide within a preset PH value adjusting range;
the determination module 203: and the flow rate of the limestone slurry in the absorption tower is determined according to the PH running value and the adjusted PH set value.
In a specific application scenario, the adjusting module is specifically configured to:
when the concentration of the sulfur dioxide is detected to be greater than the preset concentration of the sulfur dioxide, the PH set value is increased within the adjustment range of the preset PH set value;
and when the sulfur dioxide concentration is detected to be less than the preset sulfur dioxide concentration, reducing the PH set value within the preset PH set value adjusting range.
In a specific application scenario, the determining module is specifically configured to:
when the PH operation value is smaller than the adjusted PH set value, increasing the flow of limestone slurry in the absorption tower;
when the PH operation value is larger than the adjusted PH set value, reducing the flow of limestone slurry in the absorption tower;
and an electromagnetic flow meter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
In a specific application scenario, the apparatus further includes:
adding a module: and when the PH value reaches the preset highest PH value, increasing the limestone slurry pump and reducing the PH value.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (8)
1. A wet desulfurization control method, characterized in that the method comprises:
acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time;
adjusting the pH value within a preset pH value adjusting range according to the concentration of the sulfur dioxide;
and determining the flow rate of the limestone slurry in the absorption tower according to the PH running value and the adjusted PH set value.
2. The method of claim 1, wherein the adjusting the PH value according to the sulfur dioxide concentration within a predetermined PH value adjusting range comprises:
when the concentration of the sulfur dioxide is detected to be greater than the preset concentration of the sulfur dioxide, the PH set value is increased within the adjustment range of the preset PH set value;
and when the sulfur dioxide concentration is detected to be less than the preset sulfur dioxide concentration, reducing the PH set value within the preset PH set value adjusting range.
3. The method of claim 1, wherein determining the flow rate of the limestone slurry in the absorption tower based on the PH operating value and the adjusted PH set point comprises:
when the PH operation value is smaller than the adjusted PH set value, increasing the flow of limestone slurry in the absorption tower;
when the PH operation value is larger than the adjusted PH set value, reducing the flow of limestone slurry in the absorption tower;
and an electromagnetic flow meter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
4. The method of claim 2, further comprising:
and when the PH set value reaches the preset highest PH set value, increasing the limestone slurry pump and reducing the PH set value.
5. A wet flue gas desulfurization control apparatus, comprising:
an acquisition module: the system is used for acquiring the PH running value of the slurry of the absorption tower and the concentration of sulfur dioxide in the flue gas at the outlet of the absorption tower in real time;
an adjusting module: the system is used for adjusting the PH value according to the concentration of the sulfur dioxide within a preset PH value adjusting range;
a determination module: and the flow rate of the limestone slurry in the absorption tower is determined according to the PH running value and the adjusted PH set value.
6. The apparatus of claim 5, wherein the adjustment module is specifically configured to:
when the concentration of the sulfur dioxide is detected to be greater than the preset concentration of the sulfur dioxide, the PH set value is increased within the adjustment range of the preset PH set value;
and when the sulfur dioxide concentration is detected to be less than the preset sulfur dioxide concentration, reducing the PH set value within the preset PH set value adjusting range.
7. The apparatus of claim 5, wherein the determination module is specifically configured to:
when the PH operation value is smaller than the adjusted PH set value, increasing the flow of limestone slurry in the absorption tower;
when the PH operation value is larger than the adjusted PH set value, reducing the flow of limestone slurry in the absorption tower;
and an electromagnetic flow meter is arranged on a pipeline between the limestone slurry pump and the absorption tower and is used for detecting the flow of the limestone slurry.
8. The apparatus of claim 6, further comprising:
adding a module: and when the PH value reaches the preset highest PH value, increasing the limestone slurry pump and reducing the PH value.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592263Y (en) * | 2002-12-27 | 2003-12-17 | 清华大学 | Control device for desulfurizing tower |
| CN1511620A (en) * | 2002-12-27 | 2004-07-14 | 清华大学 | Controller of desulfurizing tower |
| CN101152616A (en) * | 2006-09-27 | 2008-04-02 | 上海电气集团股份有限公司 | Flue gas desulfurization control system of large coal-fired power plant |
| CN101468288A (en) * | 2007-12-24 | 2009-07-01 | 同方环境股份有限公司 | Desulfurizer suitable for sulfuric dioxide of large-scope change and control method thereof |
| CN102078765A (en) * | 2010-05-14 | 2011-06-01 | 孙厚杰 | Wet flue gas desulfurization (WFGD) absorption tower of power plant |
| CN102743971A (en) * | 2012-07-31 | 2012-10-24 | 浙江省电力公司电力科学研究院 | pH value control method limestone slurry in desulfurization system |
| CN102743972A (en) * | 2012-07-31 | 2012-10-24 | 浙江省电力公司电力科学研究院 | pH value controller of limestone slurry of desulfurization system |
| 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 |
| CN111338409A (en) * | 2020-03-17 | 2020-06-26 | 辽宁汇德电气有限公司 | Universal desulfurization dust removal energy-saving optimization control system |
| 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 |
| CN112044243A (en) * | 2020-08-05 | 2020-12-08 | 华能国际电力股份有限公司上安电厂 | Automatic control system and method for emission indexes of thermal power generating unit desulfurization device |
| CN213160199U (en) * | 2020-08-06 | 2021-05-11 | 湛江电力有限公司 | Closed-loop control's desulfurization system |
-
2021
- 2021-08-27 CN CN202110996279.3A patent/CN113731149A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2592263Y (en) * | 2002-12-27 | 2003-12-17 | 清华大学 | Control device for desulfurizing tower |
| CN1511620A (en) * | 2002-12-27 | 2004-07-14 | 清华大学 | Controller of desulfurizing tower |
| CN101152616A (en) * | 2006-09-27 | 2008-04-02 | 上海电气集团股份有限公司 | Flue gas desulfurization control system of large coal-fired power plant |
| CN101468288A (en) * | 2007-12-24 | 2009-07-01 | 同方环境股份有限公司 | Desulfurizer suitable for sulfuric dioxide of large-scope change and control method thereof |
| CN102078765A (en) * | 2010-05-14 | 2011-06-01 | 孙厚杰 | Wet flue gas desulfurization (WFGD) absorption tower of power plant |
| CN102743971A (en) * | 2012-07-31 | 2012-10-24 | 浙江省电力公司电力科学研究院 | pH value control method limestone slurry in desulfurization system |
| CN102743972A (en) * | 2012-07-31 | 2012-10-24 | 浙江省电力公司电力科学研究院 | pH value controller of limestone slurry of desulfurization system |
| 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 |
| CN111338409A (en) * | 2020-03-17 | 2020-06-26 | 辽宁汇德电气有限公司 | Universal desulfurization dust removal energy-saving optimization control system |
| 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 |
| CN112044243A (en) * | 2020-08-05 | 2020-12-08 | 华能国际电力股份有限公司上安电厂 | Automatic control system and method for emission indexes of thermal power generating unit desulfurization device |
| CN213160199U (en) * | 2020-08-06 | 2021-05-11 | 湛江电力有限公司 | Closed-loop control's desulfurization system |
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