CN108434952B - Flue gas treatment facility and monitoring data linkage intelligent control system - Google Patents
Flue gas treatment facility and monitoring data linkage intelligent control system Download PDFInfo
- Publication number
- CN108434952B CN108434952B CN201810259650.6A CN201810259650A CN108434952B CN 108434952 B CN108434952 B CN 108434952B CN 201810259650 A CN201810259650 A CN 201810259650A CN 108434952 B CN108434952 B CN 108434952B
- Authority
- CN
- China
- Prior art keywords
- control
- subsystem
- flue gas
- slurry
- liquid level
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a flue gas treatment facility and monitoring data linkage intelligent control system.A control subsystem receives a control instruction of a control server and controls a dual-alkali flue gas desulfurization system to treat flue gas discharged by an enterprise; intermediate data in the smoke treatment process are also collected; the monitoring subsystem monitors the concentration of each flue gas to obtain monitoring data; the control server generates a control instruction according to the monitoring data and the intermediate data and sends the control instruction to the control subsystem; carrying out early warning analysis on the monitoring data and the intermediate data; and the control terminal checks the monitoring data, the intermediate data and the analysis result. This system can monitor dual alkali method flue gas desulfurization system's desulfurization process automatically, and the dual alkali method flue gas desulfurization system function is controlled in the reverse direction to the data that detects in the desulfurization process, has realized cycle control's function, still is used for monitoring whether the enterprise discharges the flue gas up to standard, reduces the cost of labor, convenient to use.
Description
Technical Field
The invention belongs to the technical field of pollution source detection, and particularly relates to a flue gas treatment facility and monitoring data linkage intelligent control system.
Background
At present, the atmospheric pollution situation in China is severe, the regional atmospheric environment problem taking inhalable particles (PM10) and fine particles (PM2.5) as characteristic pollutants is increasingly prominent, the health of people is damaged, and the social harmony and stability are influenced. With the deep promotion of industrialization and urbanization in China, the energy resource consumption is continuously increased, and the atmospheric pollution prevention pressure is continuously increased.
In the air pollution prevention action plan, a system in the aspects of key health total control, pollution discharge permission, emergency early warning, legal responsibility and the like is required, enterprises which discharge malicious pollution and cause serious pollution harm and related responsible persons thereof are researched and added to investigate the content of criminal responsibility, and the punishment on illegal behaviors is increased. Along with the supervision of flue gas treatment facilities and standard emission of small-sized high-pollution and high-energy-consumption enterprises, the problem of low investment in the aspect of environmental protection is highlighted especially for small-sized enterprises. Small-sized enterprises have no special people to look after the real-time condition of pollution discharge, and the quality of the personnel is uneven, so that the problem that the enterprises cannot effectively solve the problem of standard emission of pollution sources is always solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the smoke treatment facility and monitoring data linkage intelligent control system, which can treat pollutants discharged by enterprises, realize the function of standard discharge and reduce the labor cost.
An intelligent control system for linkage of flue gas treatment facilities and monitoring data comprises a control subsystem, a monitoring subsystem, a control server and a control terminal;
the control subsystem is arranged in the dual-alkali flue gas desulfurization system and used for receiving a control instruction of the control server and controlling the dual-alkali flue gas desulfurization system to process flue gas discharged by an enterprise; the control subsystem is also used for acquiring intermediate data in the flue gas treatment process and uploading the intermediate data to the control server;
the monitoring subsystem comprises a monitor arranged at an enterprise discharge port and is used for monitoring the concentration of each flue gas, obtaining monitoring data and uploading the monitoring data to the control server;
the management and control server is used for generating a control instruction according to the monitoring data and the intermediate data and sending the control instruction to the management and control subsystem; the management and control server is also used for carrying out early warning analysis on the monitoring data and the intermediate data and sending an analysis result to the control terminal;
the control terminal is used for checking the monitoring data, the intermediate data and the analysis result of the management and control server.
Further, the management and control subsystem comprises a soda slurry control unit, a lime slurry control unit, a circulating absorption liquid control unit and a sedimentation tank control unit;
the soda slurry control unit comprises a first liquid level meter arranged in a soda slurry tank;
the lime slurry control unit comprises a second liquid level meter arranged in the lime slurry pool;
the circulating absorption liquid control unit comprises a PH monitor and a third liquid level meter which are arranged in the desulfurizing tower;
the sedimentation tank control unit comprises a solution turbidity monitor arranged in the sedimentation tank;
the intermediate data comprises the liquid level of a soda slurry pool detected by the first liquid level meter, the liquid level of a lime slurry pool detected by the second liquid level meter, the pH value of the circulating absorption liquid detected by the pH monitor, the liquid level of the circulating absorption liquid detected by the third liquid level meter and the solution turbidity of the sedimentation tank detected by the solution turbidity monitor.
Further, the monitoring data includes SO2、NOXParticulate matter and/or O2The concentration of (c).
Further, the step that the management and control server generates a control instruction according to the monitoring data and the intermediate data, and sends the control instruction to the management and control subsystem includes:
the control server judges whether the PH value in the circulating absorption liquid meets a preset PH threshold interval or not, and if not, generates a first control instruction and sends the first control instruction to the control subsystem;
the control server judges whether the turbidity of the solution in the sedimentation tank detected by the solution turbidity monitor is larger than a preset desliming threshold value or not, and if so, generates a second control instruction and sends the second control instruction to the control subsystem;
the control server judges whether the liquid level detected by the first liquid level meter is lower than a preset soda slurry pool water supply limit value or not, and if so, generates a third control instruction and sends the third control instruction to the control subsystem;
the control server judges whether the liquid level detected by the second liquid level meter is lower than a preset lime slurry water supply lower limit value or not, if so, a fourth control instruction is generated and sent to the control subsystem;
after receiving the first control instruction, the control subsystem controls a soda feeding subsystem and a lime feeding subsystem in the dual-alkali flue gas desulfurization system, and increases the feeding of materials until the pH value in the circulating absorption liquid is within a pH threshold range; after receiving a second control instruction, controlling a desliming subsystem in the dual-alkali flue gas desulfurization system to start for desliming; after receiving a third control instruction, controlling the dual-alkali flue gas desulfurization system to start a water feed pump in the soda ash feeding subsystem, and injecting liquid into the soda ash slurry pool; and after receiving the fourth control instruction, controlling the double-alkali flue gas desulfurization system to start a regeneration pump in the lime feeding subsystem, and injecting liquid into the lime slurry pool.
Further, the management and control server performs early warning analysis on the monitoring data and the intermediate data, and sends an analysis result to the control terminal, including:
the control server judges whether the liquid level detected by the first liquid level meter is lower than a preset lower limit value of the liquid level of the soda slurry pool, and if so, generates soda slurry pool alarm information;
the control server judges whether the concentration in the monitoring data is greater than a preset corresponding upper limit value of the smoke concentration, and if so, smoke alarm information is generated;
and packaging the soda slurry pool alarm information and/or the flue gas alarm information to generate the analysis result.
Further, the management and control subsystem comprises a slurry flow monitoring unit;
the slurry flow monitoring unit is used for monitoring the current of a slurry circulating pump in the dual-alkali flue gas desulfurization system; and when the current exceeds a preset current normal threshold range, generating spray nozzle blockage alarm information, obtaining the analysis result, and sending the analysis result to the control terminal.
Further, the management and control subsystem comprises a slurry flow monitoring unit;
the slurry flow monitoring unit comprises flow meters arranged in the soda feeding subsystem and the lime feeding subsystem; the flow meter is used for collecting the flow of the slurry in the soda feeding subsystem or the lime feeding subsystem;
the control server judges whether the flow of the slurry is within a preset flow range or not; if not, generating a flow control instruction and sending the flow control instruction to the control subsystem;
and after the control subsystem receives the flow control instruction, the soda feeding subsystem and the lime feeding subsystem in the dual-alkali flue gas desulfurization system are controlled to regulate the flow of the slurry until the flow of the slurry is within a preset flow range.
Further, the monitoring subsystem is also used for detecting the temperature, the exhaust gas flow speed and the humidity of the enterprise.
According to the technical scheme, the flue gas treatment facility and the monitoring data linkage intelligent control system can automatically monitor the desulfurization process of the dual-alkali flue gas desulfurization system, reversely control the dual-alkali flue gas desulfurization system to operate according to the data detected in the desulfurization process, and realize the function of cycle control. The system is also used for monitoring whether the smoke emitted by the enterprise reaches the standard or not, can treat pollutants discharged by the enterprise, realizes the function of emission reaching the standard, and reduces the labor cost. The staff also can look over the condition of enterprise in real time through mobile terminal, convenient to use.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a block diagram of a conventional dual-alkali flue gas desulfurization system.
Fig. 2 is a system block diagram according to the first embodiment.
Fig. 3 is a block diagram of a management and control subsystem according to the second embodiment.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
First, the following two-alkali flue gas desulfurization system will be described, referring to fig. 1. The dual-alkali flue gas desulfurization system comprises a soda slurry subsystem, a lime slurry subsystem, a circulating absorption liquid subsystem, a sedimentation tank and a desliming subsystem. In figure 1, 1-desulfurizing tower, 2-chimney, 3-draught fan, 4-boiler, 5-demister, 6-circulation pool, 7-clean water pool, 8-PH tester, 9-soda slurry pool, 10-lime slurry pool.
The dual-alkali method for desulfurizing fume is characterized by that the fume is fed into desulfurizing tower by means of fume-discharging machine, and the fume can be rotated and risen in the tower, and fully contacted with the aqueous solution of alkali metal salt, etc. sprayed in the tower, and then contacted with SO in the fume2Reacting, and absorbing SO in a lime slurry pool2Regenerating the solution, recycling the regenerated absorption liquid, and recycling SO2Then the calcium sulfite and the gypsum are separated out in a sedimentation tank in the form of gypsum.
The first embodiment is as follows:
referring to fig. 2, an intelligent control system for linkage of flue gas treatment facilities and monitoring data comprises a control subsystem, a monitoring subsystem, a control server and a control terminal;
the control subsystem is arranged in the dual-alkali flue gas desulfurization system and used for receiving a control instruction of the control server and controlling the dual-alkali flue gas desulfurization system to process flue gas discharged by an enterprise; the control subsystem is also used for acquiring intermediate data in the flue gas treatment process and uploading the intermediate data to the control server;
specifically, the management and control subsystem is used for controlling the dual-alkali flue gas desulfurization system to treat the flue gas, and ensuring that the flue gas reaches the environmental-friendly emission standard.
The monitoring subsystem comprises a monitor arranged at an enterprise discharge port and is used for monitoring the concentration of each flue gas, obtaining monitoring data and uploading the monitoring data to the control server;
specifically, the monitoring subsystem is used for monitoring the flue gas concentration and the flue gas parameters emitted by enterprises.
The management and control server is used for generating a control instruction according to the monitoring data and the intermediate data and sending the control instruction to the management and control subsystem; the management and control server is also used for carrying out early warning analysis on the monitoring data and the intermediate data and sending an analysis result to the control terminal;
specifically, the control server comprehensively collects and analyzes data uploaded by the control subsystem and the monitoring subsystem, and generates a control instruction to adjust the operation of the dual-alkali flue gas desulfurization system. Still have the early warning function, realized unmanned on duty's function.
The control terminal is used for checking the monitoring data, the intermediate data and the analysis result of the management and control server.
The system can automatically monitor the desulfurization process of the dual-alkali flue gas desulfurization system, reversely control the operation of the dual-alkali flue gas desulfurization system according to the data detected in the desulfurization process, and realize the function of circulation control. The system is also used for monitoring whether the smoke emitted by the enterprise reaches the standard or not, can treat pollutants discharged by the enterprise, realizes the function of emission reaching the standard, and reduces the labor cost. The staff also can look over the condition of enterprise in real time through mobile terminal, convenient to use.
Example two:
in the second embodiment, a detection function of the management and control server is added on the basis of the first embodiment.
Referring to fig. 3, the management and control subsystem includes an soda slurry control unit, a lime slurry control unit, a circulating absorption liquid control unit and a sedimentation tank control unit;
the soda slurry control unit comprises a first liquid level meter arranged in a soda slurry tank;
the lime slurry control unit comprises a second liquid level meter arranged in the lime slurry pool;
specifically, the soda slurry subsystem and the lime slurry subsystem described in this example can be dosed using existing impeller feeders. The impeller type constant feeder has the working principle that the driving shaft and the blades are driven by the driving device to rotate together, and materials flow into the discharge port from the upper part along the rotation of the blades to achieve the purpose of discharging.
The circulating absorption liquid control unit comprises a PH monitor and a third liquid level meter which are arranged in the desulfurizing tower;
specifically, the pH of the circulating absorption solution is generally controlled to be between 7 and 10 during normal operation of the system. When the PH value is lower than 7, the normal desulfurization requirement cannot be met, the control subsystem issues instructions to the soda slurry subsystem and the lime slurry subsystem, the feeding of the feeder is increased, and feeding is stopped until the PH value of the circulating absorption liquid is between 7 and 10. And if the PH value is lower than 8, which indicates that the normal desulfurization requirement is not met, controlling the soda slurry subsystem and the lime slurry subsystem to perform timed supplementary feeding according to the preset feeding amount.
The sedimentation tank control unit comprises a solution turbidity monitor arranged in the sedimentation tank;
in particular, the solution turbidity monitor may be a turbidimeter. The turbidimeter emits light beams according to the light scattering principle of 90 ℃, the light beams encounter suspended particles in water and are scattered, and the scattering intensity is proportional to the turbidity of the water. At 90 degrees to the beam, the turbidimeter is equipped with a photodetector to record the light intensity. In addition, the instrument also emits a reference beam for correcting the effects of light intensity, color variations and lens fouling.
The turbidity of the sedimentation tank directly influences the maximum desulfurization efficiency of the desulfurization system. The larger the turbidity is, the larger the mud content (dust) in the sedimentation tank is, the desliming subsystem needs to be started for desliming treatment so as to ensure the normal operation of the facility. The control subsystem sets up the turbidity normal value according to normal operating, when the measured value surpassed the threshold value of setting for, then give the instruction to desliming subsystem and carry out the desliming.
The intermediate data comprises the liquid level of a soda slurry pool detected by the first liquid level meter, the liquid level of a lime slurry pool detected by the second liquid level meter, the pH value of the circulating absorption liquid detected by the pH monitor, the liquid level of the circulating absorption liquid detected by the third liquid level meter and the solution turbidity of the sedimentation tank detected by the solution turbidity monitor.
Example three:
the system provided by the third embodiment is added with the monitoring function of the monitoring subsystem on the basis of other embodiments.
The monitoring data comprises SO2、NOXParticulate matter and/or O2The concentration of (c).
In particular, for SO2Including when the SO2When the concentration reaches 80% of the maximum discharge limit value, starting the standby spraying layer and the soda slurry control unit to ensure that the pH value of the circulating absorption liquid is greater than 9 and the circulating absorption liquid can enterAnd performing audible and visual alarm or generating alarm information and sending the alarm information to the mobile terminal for checking.
For NOXIncluding when NO is presentXWhen the concentration reaches 80% of the maximum emission limit value, alarming is carried out, sound and light alarming can be carried out, or alarming information is generated and sent to the mobile terminal for checking.
To O2The monitoring of (1) includes monitoring the amount of oxygen in normal production, set to a normal oxygen content. And judging whether the air excess coefficient of the boiler leaks or not according to the normal oxygen content. If the abnormality exists, sound and light alarm can be carried out, or alarm information is generated and sent to the mobile terminal for checking.
The monitoring of the dust or the particulate matters comprises that when the dust concentration exceeds 80% of the maximum emission standard, sound and light alarm can be carried out, or alarm information is generated and sent to the mobile terminal to be checked, and the dust removal system is checked to see whether a fault exists.
Further, the monitoring subsystem is also used for detecting the temperature, the exhaust gas flow speed and the humidity of the enterprise.
Specifically, after the temperature exceeds 80 degrees, an emergency measure is started, a signal is sent to the demister, the flow of the demister is increased, and meanwhile, sound and light alarm is carried out, or alarm information is generated and sent to the mobile terminal to be checked. And monitoring the air flow in real time, and comparing the air flow with the air volume of the fan to ensure that the error between the air flow and the rated air volume of the fan is within 15 percent.
Example four:
on the basis of other embodiments, the embodiment four adds an early warning function of the management and control server.
The control server generates a control instruction according to the monitoring data and the intermediate data, and sends the control instruction to the control subsystem, wherein the control instruction comprises the following steps:
the control server judges whether the PH value in the circulating absorption liquid meets a preset PH threshold interval or not, and if not, generates a first control instruction and sends the first control instruction to the control subsystem;
specifically, when the PH value is higher than 10, a signal is sent to the quantitative control unit of the soda slurry pool to stop adding the chemicals. And when the pH value is between 7 and 10, quantitatively adding the calcined soda according to a quantitative system at set time intervals.
The control server judges whether the turbidity of the solution in the sedimentation tank detected by the solution turbidity monitor is larger than a preset desliming threshold value or not, and if so, generates a second control instruction and sends the second control instruction to the control subsystem;
the control server judges whether the liquid level detected by the first liquid level meter is lower than a preset soda slurry pool water supply limit value or not, and if so, generates a third control instruction and sends the third control instruction to the control subsystem;
the control server judges whether the liquid level detected by the second liquid level meter is lower than a preset lime slurry water supply lower limit value or not, if so, a fourth control instruction is generated and sent to the control subsystem;
after receiving the first control instruction, the control subsystem controls a soda feeding subsystem and a lime feeding subsystem in the dual-alkali flue gas desulfurization system, and increases the feeding of materials until the pH value in the circulating absorption liquid is within a pH threshold range; after receiving a second control instruction, controlling a desliming subsystem in the dual-alkali flue gas desulfurization system to start for desliming; after receiving a third control instruction, controlling the dual-alkali flue gas desulfurization system to start a water feed pump in the soda ash feeding subsystem, and injecting liquid into the soda ash slurry pool; and after receiving the fourth control instruction, controlling the double-alkali flue gas desulfurization system to start a regeneration pump in the lime feeding subsystem, and injecting liquid into the lime slurry pool.
Specifically, when the pH value of the circulating absorption is higher than 10, a signal is sent to the soda slurry control unit to stop adding the chemicals. When the pH value is between 7 and 10, the soda ash is quantitatively added according to the set time interval.
When the liquid level of the circulating absorption liquid is lower than a set value, judging whether a process water feed pump or a soda slurry feeding pump is started through the pH value of the circulating absorption liquid, starting the process water pump to supply liquid level when the pH value is more than 8.5, and increasing the supply of the soda slurry feeding pump when the pH value is lower than 8.5. Until the liquid level returns to the set point.
And when the liquid level of the soda slurry pool is lower than a set value, starting the regeneration pump to inject liquid into the lime slurry pool.
Further, the management and control server also performs the following early warning operations:
the control server judges whether the liquid level detected by the first liquid level meter is lower than a preset lower limit value of the liquid level of the soda slurry pool, and if so, generates soda slurry pool alarm information;
the control server judges whether the concentration in the monitoring data is greater than a preset corresponding upper limit value of the smoke concentration, and if so, smoke alarm information is generated;
and packaging the soda slurry pool alarm information and/or the flue gas alarm information to generate the analysis result.
Further, the management and control subsystem also has the function of detecting the blockage of the spray head.
The control subsystem comprises a slurry flow monitoring unit;
the slurry flow monitoring unit is used for monitoring the current of a slurry circulating pump in the dual-alkali flue gas desulfurization system; and when the current exceeds a preset current normal threshold range, generating spray nozzle blockage alarm information, obtaining the analysis result, and sending the analysis result to the control terminal.
Specifically, the slurry flow monitoring unit is mainly used for judging whether a spray head in the desulfurization tower is blocked according to the current of the slurry circulating pump. The control subsystem can record the current size of the slurry circulating pump when the system normally operates, and stores the normal value of the current value as a specific value. When the shower nozzle blockked up, under the unchangeable circumstances of flow, the electric current of thick liquid circulating pump can increase, can start the warning when the management and control subsystem finds that the volume that the electric current increases is greater than the warning threshold value that designs in advance, reminds the spraying system of artifical inspection thick liquid.
Further, the management and control subsystem comprises a slurry flow monitoring unit;
the slurry flow monitoring unit comprises flow meters arranged in the soda feeding subsystem and the lime feeding subsystem; the flow meter is used for collecting the flow of the slurry in the soda feeding subsystem or the lime feeding subsystem;
the control server judges whether the flow of the slurry is within a preset flow range or not; if not, generating a flow control instruction and sending the flow control instruction to the control subsystem;
and after the control subsystem receives the flow control instruction, the soda feeding subsystem and the lime feeding subsystem in the dual-alkali flue gas desulfurization system are controlled to regulate the flow of the slurry until the flow of the slurry is within a preset flow range.
In particular, the flow meter may be a back-controlled pipe-type electromagnetic flow meter or a pipe-type ultrasonic flow meter. The slurry flow monitoring unit controls slurry pumps in the soda feeding subsystem and the lime feeding subsystem to control flow according to the flow of the slurry detected by the flow meter, so that the desulfurization efficiency is adjusted, and the aim of energy conservation of standard discharge is achieved through data change before and after desulfurization.
The maximum desulfurization efficiency of the double alkali method is 90-92%. Because the SO can not be treated by more spraying the desulfurizer after the maximum desulfurization efficiency is reached2The reduction is carried out, SO the flow can be reduced, the purposes of saving electricity and materials are achieved, and if the efficiency is not enough, the increment can be carried out, the emission SO reaching the standard is achieved2The purpose of the method is to reduce the economic loss of production stop and environmental protection penalty caused by substandard production.
In conclusion, the system provided by the invention can quantitatively analyze various raw materials and operation parameters required by the process production flow of flue gas treatment, automatically calculate the optimal operation scheme, ensure that the flue gas reaches the standard and is discharged, and save energy consumption and labor cost.
In daily operation, the theoretical cost (including depreciation cost) of the 20T/h boiler is 2000000.00 yuan/year. In the manual actual operation process, the actual operation cost is generally 1.5 to 2 times of the theoretical operation cost, and the total operation cost of one year is generally 300 and 400 ten thousand yuan per year. However, after the system is put into use, the actual operation cost is not higher than 10% of the theoretical cost, and the actual operation cost is not higher than 220 ten thousand per year. And the 20T/h boiler needs 1-2 persons in daily operation, and needs three shifts, at least 4-5 persons in continuous operation. The salary of each person is 5 ten thousand per year, and the annual labor cost is 20-25 ten thousand. The system can save 1-2 people, does not need to shift, and saves labor cost.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (5)
1. An intelligent control system for linkage of flue gas treatment facilities and monitoring data is characterized by comprising a control subsystem, a monitoring subsystem, a control server and a control terminal;
the control subsystem is arranged in the dual-alkali flue gas desulfurization system and used for receiving a control instruction of the control server and controlling the dual-alkali flue gas desulfurization system to process flue gas discharged by an enterprise; the control subsystem is also used for acquiring intermediate data in the flue gas treatment process and uploading the intermediate data to the control server;
the monitoring subsystem comprises a monitor arranged at an enterprise discharge port and is used for monitoring the concentration of each flue gas, obtaining monitoring data and uploading the monitoring data to the control server;
the management and control server is used for generating a control instruction according to the monitoring data and the intermediate data and sending the control instruction to the management and control subsystem; the management and control server is also used for carrying out early warning analysis on the monitoring data and the intermediate data and sending an analysis result to the control terminal;
the control terminal is used for checking monitoring data, intermediate data and analysis results of the control server;
the control subsystem comprises a soda slurry control unit, a lime slurry control unit, a circulating absorption liquid control unit and a sedimentation tank control unit;
the soda slurry control unit comprises a first liquid level meter arranged in a soda slurry tank;
the lime slurry control unit comprises a second liquid level meter arranged in the lime slurry pool;
the circulating absorption liquid control unit comprises an p H monitor and a third liquid level meter which are arranged in the desulfurizing tower;
the sedimentation tank control unit comprises a solution turbidity monitor arranged in the sedimentation tank;
the intermediate data comprise the liquid level of the soda slurry pool detected by the first liquid level meter, the liquid level of the lime slurry pool detected by the second liquid level meter, a p H value in the circulating absorption liquid detected by an p H monitor, the liquid level of the circulating absorption liquid detected by the third liquid level meter and the solution turbidity of the sedimentation pool detected by a solution turbidity monitor;
the monitoring data comprises SO2、NOXParticulate matter and/or O2The concentration of (c);
the control server generates a control instruction according to the monitoring data and the intermediate data, and sends the control instruction to the control subsystem, wherein the control instruction comprises the following steps:
the management and control server judges whether the p H value in the circulating absorption liquid meets a preset p H threshold interval, if not, a first control instruction is generated and sent to the management and control subsystem;
the control server judges whether the turbidity of the solution in the sedimentation tank detected by the solution turbidity monitor is larger than a preset desliming threshold value or not, and if so, generates a second control instruction and sends the second control instruction to the control subsystem;
the control server judges whether the liquid level detected by the first liquid level meter is lower than a preset soda slurry pool water supply limit value or not, and if so, generates a third control instruction and sends the third control instruction to the control subsystem;
the control server judges whether the liquid level detected by the second liquid level meter is lower than a preset lime slurry water supply lower limit value or not, if so, a fourth control instruction is generated and sent to the control subsystem;
after receiving the first control instruction, the control subsystem controls a soda feeding subsystem and a lime feeding subsystem in the dual-alkali flue gas desulfurization system, and increases the feeding of materials until the p H value in the circulating absorption liquid is within the p H threshold interval; after receiving a second control instruction, controlling a desliming subsystem in the dual-alkali flue gas desulfurization system to start for desliming; after receiving a third control instruction, controlling the dual-alkali flue gas desulfurization system to start a water feed pump in the soda ash feeding subsystem, and injecting liquid into the soda ash slurry pool; and after receiving the fourth control instruction, controlling the double-alkali flue gas desulfurization system to start a regeneration pump in the lime feeding subsystem, and injecting liquid into the lime slurry pool.
2. The flue gas treatment facility and monitoring data linkage intelligent control system of claim 1, wherein the management and control server performs early warning analysis on the monitoring data and the intermediate data, and sends the analysis result to the control terminal comprises:
the control server judges whether the liquid level detected by the first liquid level meter is lower than a preset lower limit value of the liquid level of the soda slurry pool, and if so, generates soda slurry pool alarm information;
the control server judges whether the concentration in the monitoring data is greater than a preset corresponding upper limit value of the smoke concentration, and if so, smoke alarm information is generated;
and packaging the soda slurry pool alarm information and/or the flue gas alarm information to generate the analysis result.
3. The flue gas treatment facility and monitoring data linkage intelligent control system of claim 1, wherein the management and control subsystem comprises a spray head detection unit;
the spray head detection unit is used for monitoring the current of a slurry circulating pump in the dual-alkali flue gas desulfurization system; and when the current exceeds a preset current normal threshold range, generating spray nozzle blockage alarm information, obtaining the analysis result, and sending the analysis result to the control terminal.
4. The flue gas treatment facility and monitoring data linkage intelligent control system of claim 1, wherein the management and control subsystem comprises a slurry flow monitoring unit;
the slurry flow monitoring unit comprises flow meters arranged in the soda feeding subsystem and the lime feeding subsystem; the flow meter is used for collecting the flow of the slurry in the soda feeding subsystem or the lime feeding subsystem;
the control server judges whether the flow of the slurry is within a preset flow range or not; if not, generating a flow control instruction and sending the flow control instruction to the control subsystem;
and after the control subsystem receives the flow control instruction, the soda feeding subsystem and the lime feeding subsystem in the dual-alkali flue gas desulfurization system are controlled to regulate the flow of the slurry until the flow of the slurry is within a preset flow range.
5. The flue gas treatment facility and monitoring data linkage intelligent control system of claim 1,
the monitoring subsystem is also used for detecting the temperature, the exhaust gas flow speed and the humidity of the enterprise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259650.6A CN108434952B (en) | 2018-03-27 | 2018-03-27 | Flue gas treatment facility and monitoring data linkage intelligent control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259650.6A CN108434952B (en) | 2018-03-27 | 2018-03-27 | Flue gas treatment facility and monitoring data linkage intelligent control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108434952A CN108434952A (en) | 2018-08-24 |
| CN108434952B true CN108434952B (en) | 2020-04-17 |
Family
ID=63197095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810259650.6A Active CN108434952B (en) | 2018-03-27 | 2018-03-27 | Flue gas treatment facility and monitoring data linkage intelligent control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108434952B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513323A (en) * | 2018-12-19 | 2019-03-26 | 伟明环保设备有限公司 | A kind of real-time monitoring for wet process depickling and energy-saving system and method |
| CN110966611B (en) * | 2019-12-09 | 2020-12-08 | 苏州水云境科技有限公司 | Grate furnace waste incineration discharges full flow supervisory systems |
| CN114307569B (en) * | 2021-12-17 | 2022-09-16 | 山东国舜建设集团有限公司 | Intelligent operation optimization control system and method for flue gas treatment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1066825A (en) * | 1996-08-28 | 1998-03-10 | Chiyoda Corp | Desulfurization control apparatus |
| CN1593726A (en) * | 2004-06-21 | 2005-03-16 | 樊金鑫 | Monitoring and automatic control system for wet method flue gas desulfurization technology |
| CN1864811A (en) * | 2006-04-10 | 2006-11-22 | 广州市天赐三和环保工程有限公司 | Fume desulfurizing process employing multiple circulation and stable double alkali method and apparatus |
| CN103885397A (en) * | 2013-12-23 | 2014-06-25 | 南宁职业技术学院 | Wet process flue gas desulphurization intelligent monitoring system and method |
| CN106390707A (en) * | 2016-11-30 | 2017-02-15 | 合肥亿福自动化科技有限公司 | Flue gas wet-desulfurization system |
-
2018
- 2018-03-27 CN CN201810259650.6A patent/CN108434952B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1066825A (en) * | 1996-08-28 | 1998-03-10 | Chiyoda Corp | Desulfurization control apparatus |
| CN1593726A (en) * | 2004-06-21 | 2005-03-16 | 樊金鑫 | Monitoring and automatic control system for wet method flue gas desulfurization technology |
| CN1864811A (en) * | 2006-04-10 | 2006-11-22 | 广州市天赐三和环保工程有限公司 | Fume desulfurizing process employing multiple circulation and stable double alkali method and apparatus |
| CN103885397A (en) * | 2013-12-23 | 2014-06-25 | 南宁职业技术学院 | Wet process flue gas desulphurization intelligent monitoring system and method |
| CN106390707A (en) * | 2016-11-30 | 2017-02-15 | 合肥亿福自动化科技有限公司 | Flue gas wet-desulfurization system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108434952A (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108434952B (en) | Flue gas treatment facility and monitoring data linkage intelligent control system | |
| CN111077808B (en) | Real-time data feedback artificial intelligence control system and control method thereof | |
| CN105879650B (en) | A kind of bubble type desulfurization and dedusting machine system | |
| CN104564156A (en) | Coal mine dust monitoring system and method | |
| CN102183620A (en) | Method for judging water source quality pollution and pollution level | |
| CN101322906A (en) | Intelligent system for processing waste gas | |
| CN110161992A (en) | Microwave ultraviolet aoxidizes lye Absorption Desulfurization denitrification apparatus TT&C system | |
| CN106018702A (en) | Online VOCs intelligent monitoring and pre-warning system for automotive production line | |
| CN207039948U (en) | tunnel illuminating system | |
| CN116562580A (en) | Waste water and waste gas treatment system and method for lithium carbonate production workshop | |
| CN201223766Y (en) | PLC automatic control waste gas treater | |
| CN105727722B (en) | Flue gas desulfurization, denitrification process monitoring management system | |
| CN109647100B (en) | Haze device is removed in intelligence spraying | |
| CN213668627U (en) | Acid mist treatment system for copper plating workshop | |
| CN206604357U (en) | A kind of denitrating catalyst calcine technology exhaust gas processing device | |
| CN219128842U (en) | Flue gas wet flue gas desulfurization adsorbent slurry concentration monitoring device | |
| CN103712195B (en) | A kind of flue-gas temperature control method, Apparatus and system | |
| CN115559835A (en) | Exhaust gas recirculation system of dual-fuel engine | |
| CN210107653U (en) | Fresh air system and air quality detection device thereof | |
| CN208734518U (en) | Disperse water pump operation state automatic monitored control system | |
| WO2020057171A1 (en) | Smart management system for consumption reduction of circulating pump | |
| CN207294599U (en) | The cleaning control device and cleaning system that glass line cutting machine is applicable in | |
| CN112811577A (en) | PLC control system and control method for MC-MBBR (monomer blend reactor) process water pump and aerator of sewage treatment plant | |
| CN214746286U (en) | Novel air purifier based on infrared particulate matter sensor | |
| CN110966611A (en) | Grate furnace waste incineration discharges full flow supervisory systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: 450000 Room 302, unit 3, building 13, Taiwan Science and Technology Park, 126 west of Xingang Avenue, airport economic comprehensive experimental zone, Zhengzhou City, Henan Province Patentee after: HENAN XINGHUOYUAN TECHNOLOGY Co.,Ltd. Patentee after: Cui Haixia Address before: 450016 no.2208, Yimi sunshine, No.9, Sanquan Road, Jinshui District, Zhengzhou City, Henan Province Patentee before: HENAN XINGHUOYUAN TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |