CN113932060A - Accurate regulation and control SO in ultra-thin electronic glass flue gas2Method of concentration - Google Patents
Accurate regulation and control SO in ultra-thin electronic glass flue gas2Method of concentration Download PDFInfo
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- CN113932060A CN113932060A CN202111177636.XA CN202111177636A CN113932060A CN 113932060 A CN113932060 A CN 113932060A CN 202111177636 A CN202111177636 A CN 202111177636A CN 113932060 A CN113932060 A CN 113932060A
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- concentration
- valve plate
- opening degree
- flow channel
- pulling
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- 239000011521 glass Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000001276 controlling effect Effects 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 239000005329 float glass Substances 0.000 abstract description 5
- 238000013480 data collection Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Non-Electrical Variables (AREA)
- Treating Waste Gases (AREA)
Abstract
A method for accurately regulating and controlling the concentration of SO2 in ultrathin electronic glass flue gas comprises the steps of arranging an SO2 concentration sensor, a pulling amount detection device and a runner valve plate opening sensor; step two, data collection; step three, generating a data table; fourthly, controlling a relation table in the system; and step five, regulating and controlling the target. The method is simple and effective, and is suitable for popularization and application in production of ultra-thin float glass.
Description
Technical Field
The invention relates to the field of production of ultra-thin float glass, in particular to a method for accurately regulating and controlling the concentration of SO2 in flue gas of ultra-thin electronic glass.
Background
At present, with the national strong advocated green development concept, the glass industry is regarded as pollution and energy consumption households, and becomes the key field of environmental management, the emission standard of melting furnace flue gas is getting tighter, the traditional float glass industry mainly reduces the emission of SO2 concentration by adding desulfurization equipment, but in the field of ultra-thin float glass, because the overall drawing amount is smaller, the overall emission amount of SO2 concentration is smaller, generally, a desulfurization device is not installed, the drawing amount condition is usually adjusted and produced along with the national environmental protection requirement, passive adjustment is carried out to meet the requirement, precise regulation and control cannot be realized, particularly, under the condition that the drawing amount fluctuation is larger, the phenomena that the SO2 concentration exceeds the standard instantaneously can occur, and if the country continuously accepts the emission standard, the national environmental protection requirement cannot be reached seriously. Therefore, how to realize accurate adjustment of the concentration of the SO2 in the flue gas is particularly important.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for accurately regulating and controlling the concentration of SO2 in ultrathin electronic glass flue gas, realizing online accurate regulation and control of the concentration of SO2 in the flue gas, achieving stable emission and achieving the purpose of achieving national environmental protection requirement emission in all weather.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method for accurately regulating and controlling the concentration of SO2 in ultrathin electronic glass flue gas comprises the following specific steps:
the method comprises the following steps: the method comprises the following steps that an SO2 concentration sensor is arranged in an SO2 pipeline, a drawing amount detection device is arranged at the output end of a glass production line, the SO2 concentration sensor, the drawing amount detection device and a flow channel valve plate opening degree sensor are connected with the input end of a production line control system, and the output end of the production line control system is connected with a flow channel valve plate opening degree valve;
secondly, collecting numerical values of SO2 concentration, pulling amount and opening degree of the flow channel valve plate during production by the production line control system, and generating a relation table of SO2 concentration and pulling amount and a relation table of pulling amount and opening degree of the flow channel valve plate;
step three, the concentration of SO2 and the pulling amount are in a linear relation, and the pulling amount and the opening degree of the flow channel valve plate are listed;
step four, the relation table of the drawing amount and the opening degree of the flow channel valve plate in the step three is arranged in the production line control system in a data point table format, and the SO2 concentration and the drawing amount are arranged in the production line control system in a linear relation;
and step five, controlling the quantity by taking the concentration of SO2 as a result, and automatically regulating and controlling the opening quantity of the opening valve of the flow passage valve plate by the production line control system according to a built-in relation table of the pulling quantity and the opening degree of the flow passage valve plate, SO that the pulling quantity is changed, and the concentration of SO2 is linearly regulated and controlled.
In the fifth step, when the pulling amount corresponding to the SO2 concentration control target value does not have a corresponding relationship table in the relationship table between the pulling amount and the opening degree of the flow channel valve plate, the opening degree of the flow channel valve plate corresponding to the next pulling amount lower than the current pulling amount is used as the regulation target.
According to the method for accurately regulating and controlling the concentration of SO2 in the ultra-thin electronic glass flue gas, the relation value of the pulling amount and the opening degree of the runner valve plate is established and is built in a production line control system, after the control target of the concentration of SO2 is set, the opening degree of the runner valve plate to be controlled is determined according to the pulling amount corresponding to the linear relation of the concentration of SO2, the whole process can be realized by setting the coefficient of PID, the method is simple and effective, and the method is suitable for being popularized and used in ultra-thin float glass production.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic diagram of the principle of regulating the concentration of SO2 according to the present invention.
Detailed Description
A method for accurately regulating and controlling the concentration of SO2 in ultrathin electronic glass flue gas comprises the following specific steps:
the method comprises the following steps: the method comprises the following steps that an SO2 concentration sensor is arranged in an SO2 pipeline, a drawing amount detection device is arranged at the output end of a glass production line, the SO2 concentration sensor, the drawing amount detection device and a flow channel valve plate opening degree sensor are connected with the input end of a production line control system, and the output end of the production line control system is connected with a flow channel valve plate opening degree valve;
secondly, collecting numerical values of SO2 concentration, pulling amount and opening degree of the flow channel valve plate during production by the production line control system, and generating a relation table of SO2 concentration and pulling amount and a relation table of pulling amount and opening degree of the flow channel valve plate;
step three, the concentration of SO2 and the pulling amount are in a linear relation, and the pulling amount and the opening degree of the flow channel valve plate are listed;
step four, the relation table of the drawing amount and the opening degree of the flow channel valve plate in the step three is arranged in the production line control system in a data point table format, and the SO2 concentration and the drawing amount are arranged in the production line control system in a linear relation;
and step five, controlling the quantity by taking the concentration of SO2 as a result, and automatically regulating and controlling the opening quantity of the opening valve of the flow passage valve plate by the production line control system according to a built-in relation table of the pulling quantity and the opening degree of the flow passage valve plate, SO that the pulling quantity is changed, and the concentration of SO2 is linearly regulated and controlled.
Accurate data are obtained by designing a PLD control system between an on-line monitoring system for SO2 concentration in flue gas and an on-line measuring system for pulling amount, SO that the concentration of SO2 is measured in real time along with the pulling amount (the pulling amount and the concentration of SO are in a direct proportion relation, and an equation is input into the PLD control system for design), the needed pulling amount is adjusted by adjusting a gate plate opening system of a flow channel through the PLD control system (the gate plate opening of the flow channel controls the pulling amount, and the equation is input into the PLD control system for design), SO that the concentration of SO2 in the flue gas is adjusted by adjusting the pulling amount, and the concentration of SO2 in the flue gas is accurately controlled finally.
In the fifth step, when the pulling amount corresponding to the SO2 concentration control target value does not have a corresponding relation table in the relation table between the pulling amount and the opening degree of the flow channel valve plate, the opening degree of the flow channel valve plate corresponding to the next pulling amount lower than the current pulling amount is used as a regulation target, and by the method, the set SO2 concentration can still not be exceeded when the pulling amount after reverse pushing has no data table corresponding value.
In the preferable counterintuitive feeling, a relation curve is generated through the relation table of the pulling amount and the opening degree of the flow channel valve plate obtained in the third step, the relation curve is subjected to function fitting through Fourier transform, a function qualified in fitting is built in the PLD control system, relevant control parameters controlled by PID are set, and a more accurate regulation and control mode can be obtained.
Claims (2)
1. A method for accurately regulating and controlling the concentration of SO2 in ultrathin electronic glass flue gas is characterized by comprising the following specific steps:
the method comprises the following steps: the method comprises the following steps that an SO2 concentration sensor is arranged in an SO2 pipeline, a drawing amount detection device is arranged at the output end of a glass production line, the SO2 concentration sensor, the drawing amount detection device and a flow channel valve plate opening degree sensor are connected with the input end of a production line control system, and the output end of the production line control system is connected with a flow channel valve plate opening degree valve;
secondly, collecting numerical values of SO2 concentration, pulling amount and opening degree of the flow channel valve plate during production by the production line control system, and generating a relation table of SO2 concentration and pulling amount and a relation table of pulling amount and opening degree of the flow channel valve plate;
step three, the concentration of SO2 and the pulling amount are in a linear relation, and the pulling amount and the opening degree of the flow channel valve plate are listed;
step four, the relation table of the drawing amount and the opening degree of the flow channel valve plate in the step three is arranged in the production line control system in a data point table format, and the SO2 concentration and the drawing amount are arranged in the production line control system in a linear relation;
and step five, controlling the quantity by taking the concentration of SO2 as a result, and automatically regulating and controlling the opening quantity of the opening valve of the flow passage valve plate by the production line control system according to a built-in relation table of the pulling quantity and the opening degree of the flow passage valve plate, SO that the pulling quantity is changed, and the concentration of SO2 is linearly regulated and controlled.
2. The method for accurately regulating and controlling the concentration of SO2 in the ultra-thin electronic glass flue gas as claimed in claim 1, wherein in the fifth step, when the pulling amount corresponding to the SO2 concentration control target value does not have a corresponding relationship table in the relationship table of the pulling amount and the opening degree of the flow channel valve plate, the opening degree of the flow channel valve plate corresponding to the next pulling amount lower than the current pulling amount is taken as the regulation target.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111177636.XA CN113932060B (en) | 2021-10-09 | 2021-10-09 | Accurate regulation and control of SO in ultra-thin electronic glass flue gas2Concentration method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111177636.XA CN113932060B (en) | 2021-10-09 | 2021-10-09 | Accurate regulation and control of SO in ultra-thin electronic glass flue gas2Concentration method |
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| Publication Number | Publication Date |
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| CN113932060A true CN113932060A (en) | 2022-01-14 |
| CN113932060B CN113932060B (en) | 2024-06-07 |
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| CN113932060B (en) | 2024-06-07 |
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