CN1511618A - Device for controlling liquid level of desulfurizing tower - Google Patents
Device for controlling liquid level of desulfurizing tower Download PDFInfo
- Publication number
- CN1511618A CN1511618A CNA021589518A CN02158951A CN1511618A CN 1511618 A CN1511618 A CN 1511618A CN A021589518 A CNA021589518 A CN A021589518A CN 02158951 A CN02158951 A CN 02158951A CN 1511618 A CN1511618 A CN 1511618A
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- CN
- China
- Prior art keywords
- desulfurizer
- flue gas
- liquid level
- inlet
- analysis
- 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.)
- Pending
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- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 230000003009 desulfurizing effect Effects 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000011010 flushing procedure Methods 0.000 claims abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 34
- 239000003546 flue gas Substances 0.000 claims description 34
- 239000003595 mist Substances 0.000 claims description 15
- 238000003786 synthesis reaction Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 13
- 238000011156 evaluation Methods 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003517 fume Substances 0.000 abstract 6
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The present invention discloses one device for controlling liquid level of desulfurizing tower, and belongs to the field of the fume desulfurizing technology. The present invention has no liquid level fluctuation, and is complete, convenient and simple. The present invention includes inlet fume flowmeter, inlet fume thermometer, flushing water controlling valve for the defogger, desulfurizing tower liquid level transducer and automatic control and comprehensive analysis and calculation unit. Structurally, the present invention features the inlet fume flowmeter and the inlet fume thermometer in the fume inlet pipeline, the desulfurizing tower liquid level transducer connected to the desulfurizing tower, and all their output signals are sent to the automatic control and comprehensive analysis and calculation unit, which has its output signal controlling the flushing water controlling valve.
Description
Technical field
The present invention relates to the flue gas desulfurization technique field, relate in particular to a kind of device of controlling the desulfurizer liquid level.
Background technology
In the limestone-gypsum method coal burning flue gas desulfurization system, the liquid level of control desulfurizer is to keep the key of desulphurization system stable operation.The device of control desulfurizer liquid level is just kept the stable of desulfurizer liquid level by the amount of water of control desulfurizer at present.The device of this control desulfurizer liquid level does not utilize the technology potentiality of desulfurizer fully, simultaneously because the back flush of mist eliminator has caused the fluctuation of liquid level.
Summary of the invention
At the situation of above-mentioned prior art and the problem of existence, the purpose of this invention is to provide a kind of device that does not have liquid level fluctuation, system complete, puts into operation conveniently, safeguards simple control desulfurizer liquid level.
Technical scheme of the present invention realizes as follows:
A kind of device of controlling the desulfurizer liquid level comprises inlet flue gas flow meter, entrance flue gas temperature meter, mist eliminator wash-down water operation valve, desulfurizer fluid level transmitter, control and analysis-by-synthesis computing unit automatically.Its design feature is, inlet porting flue gas flow meter and entrance flue gas temperature meter on the smoke inlet pipeline of desulfurizer one side, and desulfurizer connects the desulfurizer fluid level transmitter.The output signal of described inlet flue gas flowmeter, entrance flue gas temperature meter and desulfurizer fluid level transmitter all is sent to automatic control and analysis-by-synthesis computing unit.The output signal of described automatic control and analysis-by-synthesis computing unit is controlled the mist eliminator wash-down water operation valve on the wash-down water entrance pipe that places desulfurizer.
The workflow of above-mentioned automatic control and analysis-by-synthesis computing unit is: the 1) numerical value that gets according to inlet flue gas flowmeter and entrance flue gas temperature instrumentation, calculate and enter desulfurizer flue gas water consumption; 2) numerical evaluation that records according to the water consumption and the desulfurizer fluid level transmitter of desulfurizer flue gas goes out the liquid level of desulfurizer; 3), determine the flushing frequency of mist eliminator and control the switch of mist eliminator wash-down water operation valve according to the deviation of the desulfurizer liquid level of the liquid level of the desulfurizer that calculates and setting.
The numerical evaluation that the present invention controls automatically and the analysis-by-synthesis computing unit records according to inlet flue gas flowmeter, entrance flue gas temperature meter and desulfurizer fluid level transmitter, the flushing frequency of control mist eliminator and the switch of mist eliminator wash-down water operation valve.Therefore, the present invention compares with prior art, possesses following advantage: 1, system complete, the convenience that puts into operation, maintenance are simply.2, the desulfurizer level stability is good, and level fluctuation is little.3, do not have special level control valve, device is simple, and construction costs is low.
Description of drawings
Fig. 1 is a principle of work structural drawing of the present invention;
Fig. 2 is the workflow diagram of automatic control of the present invention and analysis-by-synthesis computing unit.
Embodiment
Referring to Fig. 1, a kind of device of controlling the desulfurizer liquid level comprises inlet flue gas flow meter 1, entrance flue gas temperature meter 2, mist eliminator wash-down water operation valve 4, desulfurizer fluid level transmitter 5, control and analysis-by-synthesis computing unit 3 automatically.Inlet porting flue gas flow meter 1 and entrance flue gas temperature meter 2 on the smoke inlet pipeline of desulfurizer 6 one sides, desulfurizer 6 connects desulfurizer fluid level transmitter 5.The output signal of described inlet flue gas flowmeter 1, entrance flue gas temperature meter 2 and desulfurizer fluid level transmitter 5 all is sent to automatic control and analysis-by-synthesis computing unit 3, and the control of the output signal of described automatic control and analysis-by-synthesis computing unit 3 places enter the mouth mist eliminator wash-down water operation valve 4 on 7 pipelines of the wash-down water of desulfurizer 6.
Referring to Fig. 2, the workflow of above-mentioned automatic control and analysis-by-synthesis computing unit 3 is: the 1) numerical value that gets according to inlet flue gas flowmeter and entrance flue gas temperature instrumentation, calculate and enter desulfurizer flue gas water consumption; 2) numerical evaluation that records according to the water consumption and the desulfurizer fluid level transmitter of desulfurizer flue gas goes out the liquid level of desulfurizer; 3), determine the flushing frequency of mist eliminator and control the switch of mist eliminator wash-down water operation valve according to the deviation of the desulfurizer liquid level of the liquid level of the desulfurizer that calculates and setting.
Claims (2)
1. device of controlling the desulfurizer liquid level, comprise inlet flue gas flow meter (1), entrance flue gas temperature meter (2), mist eliminator wash-down water operation valve (4), desulfurizer fluid level transmitter (5), automatically control and analysis-by-synthesis computing unit (3), it is characterized in that, inlet porting flue gas flow meter (1) and entrance flue gas temperature meter (2) on the smoke inlet pipeline of desulfurizer (6) one sides, desulfurizer (6) connects desulfurizer fluid level transmitter (5), described inlet flue gas flowmeter (1), the output signal of entrance flue gas temperature meter (2) and desulfurizer fluid level transmitter (5) all is sent to automatic control and analysis-by-synthesis computing unit (3), and the output signal of described automatic control and analysis-by-synthesis computing unit (3) is controlled the mist eliminator wash-down water operation valve (4) on wash-down water inlet (7) pipeline that places desulfurizer (6).
2. according to the device of the described control desulfurizer of claim 1 liquid level, it is characterized in that, the workflow of described automatic control and analysis-by-synthesis computing unit (3) is: the 1) numerical value that gets according to inlet flue gas flowmeter and entrance flue gas temperature instrumentation, calculate and enter desulfurizer flue gas water consumption; 2) numerical evaluation that records according to the water consumption and the desulfurizer fluid level transmitter of desulfurizer flue gas goes out the liquid level of desulfurizer; 3), determine the flushing frequency of mist eliminator and control the switch of mist eliminator wash-down water operation valve according to the deviation of the desulfurizer liquid level of the liquid level of the desulfurizer that calculates and setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021589518A CN1511618A (en) | 2002-12-27 | 2002-12-27 | Device for controlling liquid level of desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021589518A CN1511618A (en) | 2002-12-27 | 2002-12-27 | Device for controlling liquid level of desulfurizing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1511618A true CN1511618A (en) | 2004-07-14 |
Family
ID=34237247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021589518A Pending CN1511618A (en) | 2002-12-27 | 2002-12-27 | Device for controlling liquid level of desulfurizing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1511618A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020256A (en) * | 2016-05-15 | 2016-10-12 | 张波 | Water balance system based on automatic liquid level adjustment |
| CN109012131A (en) * | 2018-08-28 | 2018-12-18 | 贵阳振兴铝镁科技产业发展有限公司 | A kind of flue gas purifying technique system desulfurization slurry material balance control method |
| CN111450622A (en) * | 2020-04-24 | 2020-07-28 | 大唐环境产业集团股份有限公司 | Demister flushing system capable of automatically adjusting water balance of desulfurization tower and control method |
-
2002
- 2002-12-27 CN CNA021589518A patent/CN1511618A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106020256A (en) * | 2016-05-15 | 2016-10-12 | 张波 | Water balance system based on automatic liquid level adjustment |
| CN109012131A (en) * | 2018-08-28 | 2018-12-18 | 贵阳振兴铝镁科技产业发展有限公司 | A kind of flue gas purifying technique system desulfurization slurry material balance control method |
| CN109012131B (en) * | 2018-08-28 | 2021-05-04 | 贵阳振兴铝镁科技产业发展有限公司 | Desulfurization slurry material balance control method for flue gas purification process system |
| CN111450622A (en) * | 2020-04-24 | 2020-07-28 | 大唐环境产业集团股份有限公司 | Demister flushing system capable of automatically adjusting water balance of desulfurization tower and control method |
| CN111450622B (en) * | 2020-04-24 | 2024-02-09 | 大唐环境产业集团股份有限公司 | Demister flushing system capable of automatically adjusting water balance of desulfurizing tower and control method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |