CN106823761A - A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method - Google Patents
A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method Download PDFInfo
- Publication number
- CN106823761A CN106823761A CN201611158957.4A CN201611158957A CN106823761A CN 106823761 A CN106823761 A CN 106823761A CN 201611158957 A CN201611158957 A CN 201611158957A CN 106823761 A CN106823761 A CN 106823761A
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- value
- absorption tower
- slurry
- tower
- level value
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Classifications
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- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- 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
Abstract
The present invention discloses a kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method, mainly when desulfuration absorbing tower slurries normal level value occurs abnormal, the reference level value with height close to the actual liquid level of slurry in absorption tower is calculated by DCS system.It is characterized in that：If exception occurs in desulfuration absorbing tower slurries normal level value in running, only need operations staff that absorption tower serum density reference value (daily laboratory values) are set manually rapidly, by formula P=ρ gh (in formula：P is absorption tower slurry pressure；ρ is serum density reference value；G is acceleration of gravity, takes definite value 9.8m/s2；H is absorbing tower liquid-level), computing is carried out in DCS control logics, just can calculate the reference level value close to the actual liquid level of slurry in absorption tower with height.The reference level value is mainly after abnormal (such as liquid level signal loss, fluctuation) occurs in desulfuration absorbing tower slurries normal level value, to the correct judgement absorption tower slurries actual height of operations staff, continue to the safe and stable operation of desulfurization environmental protection equipment, absorption tower slurries overflow is prevented, with great importance.
Description
Technical field
The present invention relates to thermal power plant's Limestone-gypsum Wet Flue Gas Desulfurization Process control field, and in particular to heat-engine plant desulfurized absorption tower
Liquid level of slurry measuring method.
Background technology
After there is exception in absorption tower liquid level of slurry measurement in thermal power plant's Limestone-gypsum Wet Flue Gas Desulfurization Process system, operations staff
Pulp level in absorption tower cannot correctly be judged, desulfurization operation equipment cannot be controlled safely and effectively, or even occurred serious
Slurries overflow phenomena, had both caused slurries to be lost in, and Environmental Safety risk is substantially increased again.
The content of the invention
It is an object of the invention to：A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method is provided, is inhaled in desulfurization
After exception occurs in receipts tower slurries normal level value, starched by the rapid absorption tower serum density reference value for setting manually and absorption tower
The actual institute's measuring pressure of liquid, using formula h=P/ (ρ s), carries out computing in DCS control logics, calculates with height close to suction
The reference level value of tower actual liquid level is received, it prevents absorption tower from starching the correct judgement absorption tower slurries actual height of operations staff
Hydrorrhea stream, reaches the purpose of the safe and stable operation for maintaining desulfurization environmental protection equipment.
The object of the present invention is achieved like this：
A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method, desulfurization absorbs mainly in unit running process
When tower slurries normal level value occurs abnormal, operations staff only needs manual setting absorption tower serum density reference value rapidly (daily
Laboratory values), by formula P=ρ gh (in formula：P is absorption tower slurry pressure；ρ is serum density reference value；G accelerates for gravity
Degree, takes definite value 9.8m/s2；H is absorbing tower liquid-level), computing is carried out in DCS control logics, just can calculate and be connect with height
The reference level value of nearly absorption tower slurries actual liquid level.
The invention has the advantages that with positive beneficial effect：
A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method of the invention, is set using the existing technology in market
It is standby, designed by DCS control logics, " reference level " for calculating substantially can correctly, dynamic reflection absorption tower reality
The change of liquid level, and height is close, can effectively help operations staff correctly to judge absorption tower slurries actual height, is subsequently to set
Standby operation provides important evidence, is prevented effectively from absorption tower slurries overflow, prevents serious Environmental Safety accident.Present invention tool
There is cost of investment low, design is simple, is a kind of more satisfactory desulfuration absorbing tower liquid level of slurry failure emergence treatment scheme.
Brief description of the drawings
Concrete structure of the invention is described in detail with preferred embodiment combination accompanying drawing now：
Fig. 1 is a kind of DCS control logic schematic diagrames of desulfuration absorbing tower liquid level of slurry failure emergency processing method of the invention.
Accompanying drawing number：
1. reference density value sets manual operator；2. acceleration of gravity definite value；3. absorption tower slurry pressure value；4. absorption tower is starched
Hydraulic pressure power transmitter absolute altitude value；5. reference level value.
Specific embodiment
Refer to shown in Fig. 1, a kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method is characterized mainly in that：
After exception occurs in desulfuration absorbing tower slurries normal level value, the rapid setting manually of manual operator (1) is set by reference to density value
Absorption tower serum density reference value, according to the suction at acceleration of gravity definite value (2) absorption tower slurry pressure transmitter absolute altitude value (4) place
Receipts tower slurry pressure value (3) draw the actual institute's measuring pressure of absorption tower slurries, and (three pressure values independently carry out logical operation, just may be used
Calculate three, the current absorption tower average value of reference level value；It is automatic by system after one of reference level value failure
After judgement, remaining two average values of reference level value are taken；After any two reference level value failure, remaining one normal ginseng is taken
Examine level value)), using formula h=P/ (ρ s) (in formula：H is absorbing tower liquid-level；P is absorption tower slurry pressure；ρ is referred to for slurries
Density；G is acceleration of gravity definite value, takes definite value 9.8m/s2), computing is carried out in DCS control logics, calculate with height
Close to the reference level value (5) of the actual liquid level of slurry in absorption tower.
The service condition of above-described embodiment：
First, purposes
It is of the invention that a kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method is provided, it is usable in power plant desulfurization suction
Emergent management during tower slurries normal level value failure is received, with the ginseng quickly drawn highly close to the actual liquid level of slurry in absorption tower
Liquid level is examined, absorption tower slurries overflow is prevented, the purpose of the safe and stable operation for maintaining desulfurization environmental protection equipment is reached.
2nd, usage
After exception occurs in desulfuration absorbing tower slurries normal level value, only need operations staff that absorption tower is set rapidly manually and starch
Liquid-tight degree reference value, by formula P=ρ gh (in formula：P is absorption tower slurry pressure；ρ is slurries reference density；G adds for gravity
Velocity amplitude, takes definite value 9.8m/s2；H is absorbing tower liquid-level), know h=P/ (ρ s).Wherein absorption tower slurry pressure P measured values, take
Self installation is absorbing three pressure transmitter institute pressure measurement force value at 1.4 meters high of tower bottom, is transported in DCS control logics
Calculate, system just can automatically calculate the reference level value close to the actual liquid level of slurry in absorption tower with height, and monitor picture in DCS
Intuitively shown on face.
Claims (1)
1. a kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method, is characterized mainly in that：In desulfuration absorbing tower slurries just
After exception occurs in normal level value, the rapid absorption tower serum density for setting manually of manual operator (1) is set by reference to density value and is joined
Value is examined, according to acceleration of gravity definite value (2) and the absorption tower slurry pressure value at absorption tower slurry pressure transmitter absolute altitude value (4) place
(3) (three pressure values independently carry out logical operation, just can calculate current absorption to draw the actual institute's measuring pressure of absorption tower slurries
Three average values of reference level value of tower；After one of reference level value failure, by after system automatic decision, taking remaining two
The average value of individual reference level value；After any two reference level value failure, a remaining nominal reference level value is taken), utilize
Formula h=P/ (ρ s) is (in formula：H is absorbing tower liquid-level；P is absorption tower slurry pressure；ρ is slurries reference density；G adds for gravity
Speed definite value, takes definite value 9.8m/s2), computing is carried out in DCS control logics, calculate with height close to absorption tower reality
The reference level value (5) of liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158957.4A CN106823761A (en) | 2016-12-07 | 2016-12-07 | A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158957.4A CN106823761A (en) | 2016-12-07 | 2016-12-07 | A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method |
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| Publication Number | Publication Date |
|---|---|
| CN106823761A true CN106823761A (en) | 2017-06-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611158957.4A Pending CN106823761A (en) | 2016-12-07 | 2016-12-07 | A kind of desulfuration absorbing tower liquid level of slurry failure emergency processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175182A (en) * | 2020-01-08 | 2020-05-19 | 华电内蒙古能源有限公司包头发电分公司 | Method for measuring density of desulfurized limestone slurry of thermal power plant |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406828A (en) * | 1993-11-16 | 1995-04-18 | Yellowstone Environmental Science, Inc. | Method and apparatus for pressure and level transmission and sensing |
| JPH07140057A (en) * | 1993-11-16 | 1995-06-02 | Japan Tobacco Inc | Method and apparatus for measuring density of crystal suspension within can in crystallizer for salt manufacture |
| CN202008456U (en) * | 2011-02-24 | 2011-10-12 | 中电投远达环保工程有限公司 | Combination type slurry density measurement device |
| CN102519545A (en) * | 2011-12-31 | 2012-06-27 | 浙江省电力试验研究院 | Method and device for measuring liquid level of absorption tower |
| CN202569937U (en) * | 2012-04-19 | 2012-12-05 | 北京中大能环工程技术有限公司 | Combined measurement device for liquid level and density of desulfurization absorption tower |
| CN103674162A (en) * | 2013-12-10 | 2014-03-26 | 中国神华能源股份有限公司 | Liquid level measuring device and method for absorption tower |
| CN203964986U (en) * | 2014-07-17 | 2014-11-26 | 大唐华银电力股份有限公司金竹山火力发电分公司 | Desulphurization system absorbing tower liquid-level measuring system |
| CN104251900A (en) * | 2014-08-22 | 2014-12-31 | 华能南京金陵发电有限公司 | Slurry quality measurement monitoring device and measurement monitoring method |
| CN205102882U (en) * | 2015-11-18 | 2016-03-23 | 四川省银河化学股份有限公司 | Liquid level measuring apparatus |
-
2016
- 2016-12-07 CN CN201611158957.4A patent/CN106823761A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5406828A (en) * | 1993-11-16 | 1995-04-18 | Yellowstone Environmental Science, Inc. | Method and apparatus for pressure and level transmission and sensing |
| JPH07140057A (en) * | 1993-11-16 | 1995-06-02 | Japan Tobacco Inc | Method and apparatus for measuring density of crystal suspension within can in crystallizer for salt manufacture |
| CN202008456U (en) * | 2011-02-24 | 2011-10-12 | 中电投远达环保工程有限公司 | Combination type slurry density measurement device |
| CN102519545A (en) * | 2011-12-31 | 2012-06-27 | 浙江省电力试验研究院 | Method and device for measuring liquid level of absorption tower |
| CN202569937U (en) * | 2012-04-19 | 2012-12-05 | 北京中大能环工程技术有限公司 | Combined measurement device for liquid level and density of desulfurization absorption tower |
| CN103674162A (en) * | 2013-12-10 | 2014-03-26 | 中国神华能源股份有限公司 | Liquid level measuring device and method for absorption tower |
| CN203964986U (en) * | 2014-07-17 | 2014-11-26 | 大唐华银电力股份有限公司金竹山火力发电分公司 | Desulphurization system absorbing tower liquid-level measuring system |
| CN104251900A (en) * | 2014-08-22 | 2014-12-31 | 华能南京金陵发电有限公司 | Slurry quality measurement monitoring device and measurement monitoring method |
| CN205102882U (en) * | 2015-11-18 | 2016-03-23 | 四川省银河化学股份有限公司 | Liquid level measuring apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 李庆丰等: "FGD系统中吸收塔液位测量方法改进", 《电力科学与技术学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175182A (en) * | 2020-01-08 | 2020-05-19 | 华电内蒙古能源有限公司包头发电分公司 | Method for measuring density of desulfurized limestone slurry of thermal power plant |
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