CN105582799A - Spray device capable of meeting desulfurization towers under different working conditions of CFB (circulating fluidized bed) boiler - Google Patents
Spray device capable of meeting desulfurization towers under different working conditions of CFB (circulating fluidized bed) boiler Download PDFInfo
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- CN105582799A CN105582799A CN201511000860.6A CN201511000860A CN105582799A CN 105582799 A CN105582799 A CN 105582799A CN 201511000860 A CN201511000860 A CN 201511000860A CN 105582799 A CN105582799 A CN 105582799A
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- spray
- water inlet
- main water
- cfb
- desulfurizing tower
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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
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to a spray device capable of meeting desulfurization towers under different working conditions of a CFB (circulating fluidized bed) boiler and belongs to the environmental protection field. Each spray layer contains a main water inlet pipe, a plurality of branch pipes and a bearing beam for fixation, wherein each main water inlet pipe is a pipe adopting reducing type change, the branch pipes are arranged on pipes with different diameters, and spray heads arranged on the branch pipes; the bearing beams are fixedly connected with the wall of a spray tower; multiple spray layers are fixed in the spray tower, and the vertical positions of the main water inlet pipes of all the spray layers are not overlapped. Through combination of forward-flow spray with reverse-flow spray, angle arrangement of the spray heads and arrangement of directions of the spray layers, the conditions that the desulfurization tower scales, is blocked and has spray dead corners are eliminated fundamentally, so that the desulfurization efficiency of the desulfurization tower is improved, and the spray device has characteristics of reliability in operation, convenience in operation and high adaptability to flue gas change in engineering practice. The reaction environment is optimized, the size of the tower body is narrowed, and the design principle of simplicity and reliability is embodied. Conciseness, high efficiency and reliability are realized indeed.
Description
Technical field
The present invention relates to a kind of spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler, belong to environmental protectionField.
Background technology
The FGD system nineteen thirty of commercial operation the earliest puts into operation in Britain in the world, the beginning of the seventies U.S.State and Japan have started large-scale desulfurizer construction. Since the eighties, Europe has started desulphurization system and has builtIf German FGD technology starting is later than the U.S., Japan, but impelling at the strict environmental regulation of German GovernmentUnder, FGD obtains exploitation rapidly and application, has the desulfurizer of heap(ed) capacity in the world. At present in the worldApproximately there are 14 to be distributed in North America, Europe, asia and ocenia through the country that builds desulfurizer.
Desulfurizing tower is the equipment that industrial waste gas is carried out to desulfurization processing, is that a kind of desulfuration efficiency is high, the pressure lossThe lower double desulphurization plant that can remove certain dirt, desulfurizing tower is to use cyclone technique, fluidics, pressure mistChange technology and Venturi tube technology, with alkaline liquid level carrier, by the dirt in flue gas, sulfur dioxide, hydrocarbonizeThe harmful substances such as compound are separated from flue gas, absorb sedimentation, finally reach the object of purifying smoke.
Prior art adopts single countercurrent spray mode conventionally, and nozzle layout of sprinkler is unreasonable, spraying layer is arranged not sectionLearn, often cause shower nozzle water outlet can not cover completely in tower and have living space or directly wash away Ta Bi, cause anti-The destruction of rotten layer, directly affects safe operation and the service life of whole desulfurizing tower.
Summary of the invention
The object of the invention is in order to improve desulfuration efficiency, provide one can meet under the different operating modes of CFB boilerThe spray equipment of desulfurizing tower.
The object of the invention is to be achieved through the following technical solutions.
The spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler, spraying layer contains a master and entersWater pipe and some arms, and for fixing spandrel girder; Main water inlet tube is the pipeline that reducing type changes,On the pipeline of each different-diameter, arm is set, on arm, is provided with shower nozzle; Spandrel girder and spray column wall are fixedConnect; Multiple spraying layers are fixed in spray column, need the main water inlet tube upright position of the each spraying layer of guarantee notOverlap;
Described arm quantity is at least six; Arm is the pipeline that reducing type changes;
Shower nozzle is the shower nozzle of double outlets, can two-wayly spray;
Shower nozzle line centered by main water inlet tube is symmetrical;
Spraying layer center line and main water inlet tube form angle, the angle angle difference of each spraying layer, and be to passIncrease;
Beneficial effect
1, a kind of spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler of the present invention, by adoptingFollowing current spray and countercurrent spray combine, the setting of spray head angle and spraying layer orientation are arranged and arranged, from allOn solved the situation at desulfurizing tower fouling, obstruction and spray dead angle, thereby improve desulfurizing tower desulfuration efficiency,In engineering practice, have reliable, easy to operate, flue gas is changed to adaptable feature. Optimize anti-Answer environment, dwindled tower body size, embodied simple, reliable design principle. Really accomplished terse,Efficiently, reliably.
2, a kind of spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler of the present invention, is only suitable for oneCan make desulfuration efficiency reach more than 98.5% to two-layer spraying layer.
Brief description of the drawings
Fig. 1 is the schematic diagram of spraying layer in the present invention;
Fig. 2 is schematic diagram of the present invention;
Fig. 3 is the schematic diagram of spraying layer in embodiment.
Detailed description of the invention
The spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler, spraying layer contains a master and entersWater pipe and six arms, and for fixing spandrel girder; Main water inlet tube is reducing type pipeline, and be throughThe pipeline of twice reducing; Two arms are set on the pipeline of each different-diameter, on arm, are provided with shower nozzle;Shower nozzle line centered by main water inlet tube is symmetrical; As shown in Figure 1, shower nozzle quantity is 14, point inner circle withCylindrical symmetric arrays layout, inner circle is totally 4 spray heads, outer circular arrangement 10 spray heads, spandrel girder and spraysTower wall is fixedly connected with;
As shown in Figure 2,5 spraying layers are fixed in spray column, respectively called after the first spraying layer, the second sprayDrench layer, the 3rd spraying layer, the 4th spraying layer and the 5th spraying layer; 5 spraying layers are according to order from the bottom to topBe arranged on successively in spray column; As shown in Figure 3, the first spraying layer center line and main water inlet tube angulationIt is 18 °; The second spraying layer center line and main water inlet tube angulation are 33 °; The 3rd spraying layer center line withMain water inlet tube angulation is 48 °; The 4th spraying layer center line and main water inlet tube angulation are 63 °; TheFive spraying layer center lines and main water inlet tube angulation are 78 °; The design of arranging like this exists in case historyFollowing advantage: 1, comprehensive: every layer of spray is basic covers each position in whole tower, but in practice every layerIn running, can have unavoidably the shower nozzle that damages or stop up, the shower nozzle of damage causes spray not comprehensive, like thisDesign can effectively overcome this situation; 2, the shower nozzle design that is staggeredly arranged: each spraying layer and adjacent sprayDrench layer angle and differ 15 °, this design can avoid upper and lower current to collide, and reduces spray loss, and at sprayLayer in the situation of standard-sized sheet, is not avoided the current scour lower layer sprayer head of spray downwards, causes the damage of lower layer sprayer head. 3Actual use: used this design in engineering, successful, generally only opens just foot of 1-2 layer spraying layerTo reach existing emission request, in the time that putting into effect minimum discharge, country can all open spraying layer, for meeting stateFamily's emission request; 4 are easy to install: this design water inlet pipe mouth installation site only needs to take 1/4th of tower circumferenceThe ranged space is simple in practice of construction process, convenient, be easy to installation.
Shower nozzle is the shower nozzle of double outlets, can two-wayly spray;
The course of work: slurries enter spraying layer from main water inlet tube mouth, arranges two place's reducings at main water inlet tube place,Every through reducing of a branch design (for ensureing pressure and the flow velocity of current); Slurries spray from armHead ejection, every through a spray head reducing of design (for ensureing hydraulic pressure and the flow velocity of end spray head);All slurries from spray head ejection are mutually i.e. (adverse current and the following current) of spray up and down, and every layer of spray differs15 °, can effectively spray full tower and have living space, effectively avoid the existence at dead angle.
Claims (5)
1. the spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler, is characterized in that: sprayLayer contains a main water inlet tube (1) and some arms (2), and for fixing spandrel girder (3); Master entersWater pipe is the pipeline that reducing type changes, and on the pipeline of each different-diameter, arm is set, and on arm, is provided withShower nozzle (4); Spandrel girder is fixedly connected with spray column wall; Multiple spraying layers are fixed in spray column, need to ensureThe main water inlet tube upright position of each spraying layer does not overlap.
2. a kind of spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler as claimed in claim 1,It is characterized in that: described arm quantity is at least six; Arm is the pipeline that reducing type changes.
3. a kind of spray equipment that can meet desulfurizing tower under the different operating modes of CFB boiler as claimed in claim 1,It is characterized in that: the shower nozzle that shower nozzle is double outlets, can two-wayly spray.
4. a kind of spray that can meet desulfurizing tower under the different operating modes of CFB boiler as described in claim 1 or 3Device, is characterized in that: shower nozzle line centered by main water inlet tube is symmetrical.
5. a kind of as described in claim 1 or 2 or 3 can meet desulfurizing tower under the different operating modes of CFB boilerSpray equipment, is characterized in that: spraying layer center line and main water inlet tube form angle, the folder of each spraying layerAngle angle difference, and increase progressively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000860.6A CN105582799B (en) | 2015-12-28 | 2015-12-28 | A kind of spray equipment that can meet desulfurizing tower under CFB boiler difference operating mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000860.6A CN105582799B (en) | 2015-12-28 | 2015-12-28 | A kind of spray equipment that can meet desulfurizing tower under CFB boiler difference operating mode |
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| Publication Number | Publication Date |
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| CN105582799A true CN105582799A (en) | 2016-05-18 |
| CN105582799B CN105582799B (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511000860.6A Active CN105582799B (en) | 2015-12-28 | 2015-12-28 | A kind of spray equipment that can meet desulfurizing tower under CFB boiler difference operating mode |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377977A (en) * | 2016-11-07 | 2017-02-08 | 天津海泰环保科技发展股份有限公司 | Comprehensive treatment device of rubber waste gas |
| CN106377978A (en) * | 2016-11-07 | 2017-02-08 | 天津海泰环保科技发展股份有限公司 | Comprehensive processing system for rubber waste gas |
| CN107569997A (en) * | 2017-08-23 | 2018-01-12 | 河北可利尔环保设备有限公司 | A kind of absorption tower slurries spray equipment for power plant's wet desulphurization |
| CN111569620A (en) * | 2020-05-19 | 2020-08-25 | 江苏科技大学 | Design method for spraying layer of spray system of desulfurization tower |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201880465U (en) * | 2010-11-17 | 2011-06-29 | 东方电气集团东方锅炉股份有限公司 | Seawater desulfurizing spray tower |
| CN202277781U (en) * | 2011-04-26 | 2012-06-20 | 山东华鲁恒升集团德化设计研究有限公司 | Environment-friendly spraying distribution device |
-
2015
- 2015-12-28 CN CN201511000860.6A patent/CN105582799B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201880465U (en) * | 2010-11-17 | 2011-06-29 | 东方电气集团东方锅炉股份有限公司 | Seawater desulfurizing spray tower |
| CN202277781U (en) * | 2011-04-26 | 2012-06-20 | 山东华鲁恒升集团德化设计研究有限公司 | Environment-friendly spraying distribution device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377977A (en) * | 2016-11-07 | 2017-02-08 | 天津海泰环保科技发展股份有限公司 | Comprehensive treatment device of rubber waste gas |
| CN106377978A (en) * | 2016-11-07 | 2017-02-08 | 天津海泰环保科技发展股份有限公司 | Comprehensive processing system for rubber waste gas |
| CN106377977B (en) * | 2016-11-07 | 2022-05-20 | 天津海泰环保科技发展股份有限公司 | Comprehensive treatment device for rubber waste gas |
| CN106377978B (en) * | 2016-11-07 | 2022-07-12 | 天津海泰环保科技发展股份有限公司 | Comprehensive treatment system for rubber waste gas |
| CN107569997A (en) * | 2017-08-23 | 2018-01-12 | 河北可利尔环保设备有限公司 | A kind of absorption tower slurries spray equipment for power plant's wet desulphurization |
| CN111569620A (en) * | 2020-05-19 | 2020-08-25 | 江苏科技大学 | Design method for spraying layer of spray system of desulfurization tower |
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| Publication number | Publication date |
|---|---|
| CN105582799B (en) | 2018-02-13 |
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