CN201578989U - Multi-section continuous head-on collision type desulfurizing tower - Google Patents
Multi-section continuous head-on collision type desulfurizing tower Download PDFInfo
- Publication number
- CN201578989U CN201578989U CN2009202777739U CN200920277773U CN201578989U CN 201578989 U CN201578989 U CN 201578989U CN 2009202777739 U CN2009202777739 U CN 2009202777739U CN 200920277773 U CN200920277773 U CN 200920277773U CN 201578989 U CN201578989 U CN 201578989U
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- tower
- desulfurizing
- flue gas
- dividing plate
- inner tube
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Abstract
The utility model relates to a multi-section continuous head-on collision type desulfurizing tower, which belongs to the technical field of flue gas desulfurization. The desulfurizing tower comprises a tower body, a separation plate (2), a catching net (3) and a spraying coil pipe (9), wherein the tower body is divided into an inner tube (5) and an outer tube (6) and is in a cylindrical shape, flue gas inlets (1) are symmetrically arranged at both sides of the outer tube, the flue gas inlets are provided with centrifugal spraying heads (10), and the top of the inner tube is provided with the catching net (3). The separation plate (2) with an inclination angle between 4 and 8 degrees is arranged between the inner tube and the outer tube, flow guide holes are arranged on the partition plate in a reaction region, and flow guide holes are also formed on the inner tube of a reaction region for the last time except the lowest layer of the separation plate of each section of the desulfurizing region. The utility model has the advantages that good flue gas desulfurizing effect is realized, flue gas and desulfurizing agents enter the position between the inner tube and the outer tube of the tower from inlets at both sides of the outer tube of the tower tube at a certain flow speed, the flow is divided through being guided by the outer wall of the inner tube of the tower, and the flue gas and the desulfurizing agents collide with the fluid coming from the opposite direction on head. The utility model has the head-on collision result that a high-degree turbulent motion and high-grain-concentration reaction region is formed, and good conditions are provided for heat and mass transfer strengthening.
Description
Technical field
The utility model belongs to the flue gas desulfurization technique field, particularly provides a kind of multistage continuous collision type desulfurizing tower, adopts this tower to carry out the continuous collision type desulfurization of multistage to factory's discharged flue gas.
Background technology
At present, domestic coal-burning power plant, Industrial Stoves, partially sinter factory and taked different sulfur removal technology to build the desulfurization facility and put into operation, operational effect is not quite similar.Investigate and research through actual, think that several desulfurizing towers of current employing have the following disadvantages:
1. spray column is widely used in desulfurizing industrial fume; Domestic thermal power plant has been built the desulfurization facility and has been taked this technology basically.Tower hollow, less scaling, resistance is little, outstanding shortcoming is that mass tranfer coefficient is low, phase contact area is little, spray column is huge, investment is high.
2. packed tower, mass tranfer coefficient is bigger slightly than spray tower; Fluid resistance is bigger, and gas liquid film is long-pending less; Easily fouling, incrustation cleaning difficulty; Investment is high.
3. rotating stream tray scrubber, fluid resistance is big, tower inner structure complexity, easily fouling; Levelness requires very high, and difficulty is installed in the large-scale plant manufacturing; Investment is high.
4. spray absorption tower, service behaviour and spray column are close; The absorbent specific area that adopts is little, tower body than other three kinds huger, investment is high.
Facts have proved that the form and the structure of desulfurizing tower play crucial effects at sulfur removal technology.Therefore, researching and developing new and effective desulfurizing tower is needing when affair.
Summary of the invention
The purpose of this utility model is to provide a kind of multistage continuous collision type desulfurizing tower, has realized that flue gas desulfurization is effective.The effect of tower body design consideration percussion flow high heat transfer, mass transfer, checking and Fluent software simulation by experiment.Tower body designs the multistage desulfurization zone from top to bottom, and every section is desulfurization section independently; Design a plurality of head-on collision reaction zones in every section again, once head-on collision takes place in each reaction zone; Therefore, flue gas enters repeatedly head-on collision reaction continuously can take place in the tower.The result of head-on collision forms the turbulence of a height, reaction zone that granule density is high, has improved heat transfer, the mass transfer effect of medium, finishes SO in this process
2Absorption, help improving absorptivity.
The utility model comprises tower body, gas approach, dividing plate, collecter ring, centrifugal energy nozzle, gas vent, solid-liquid outlet; Tower body is cylindrical, and tower body comprises inner core and urceolus, and the urceolus bilateral symmetry is arranged the multistage gas approach, and gas approach is equipped with centrifugal energy nozzle; Be provided with dividing plate between inner core, the urceolus, the dividing plate inclination angle is 4-8 °, orlop dividing plate level; Tower body is cylindrical.
Tower body designs the multistage desulfurization zone from top to bottom, and every section desulfurization zone is provided with three layers of dividing plate at least, the few one deck of the hypomere desulfurization zone baffle arrangement of tower.
Every section head-on collision of tower reaction zone dividing plate has pod apertures, and the orlop dividing plate does not have pod apertures, and last reaction zone inner core also has pod apertures.
Be used for wet desulphurization, the urceolus bottom is provided with sprays coil pipe and overfall.
Flue gas is divided equally two strands and is gone into tower in opposite directions along the axial symmetrical horizontal score layer of tower, at gas approach desulfurizing agent is sprayed into flue gas with centrifugal energy nozzle and to mix, the fluid-mixing of going into tower is divided into the reverse (fluid velocity＞12m/s) flow of two fluid streams voluntarily in the catalytic while, at a high speed be the unification of clashing in twos of another fluid streams that 90 ° annular head-on collision district and symmetry enter tower with inlet along the circular passage, and separate the plate pod apertures along this and enter the lower floor circular passage, being divided into two voluntarily again is two strands the secondaries head-on collision oppositely takes place 90 ° of positions.The rest may be inferred for two sections, three sections even multistage head-on collision sweetening process.Can be according to specific requirement design head-on collision number of times, can realize the continuous knock-on process of multistage according to this, its reaction product focuses at the bottom of falling into tower, and the flue gas after the desulfurizing tower desulfurization enters inner core, is effluxed by chimney after catching foam layer and further the processing after the diffusion inertial separation again.
This tower be in operation fluid repeatedly at a high speed head-on collision make the gas of flue gas and desulfurizing agent, solid, liquid phase mixture more even, the head-on collision contact that makes it to interweave is more abundant, further augmentation of heat transfer, mass transport process; The head-on collision district is in the system such as gas-solid suspension system that two phase concentrations differ greatly, particle infiltrates another thigh fluid in opposite directions because of inertia from a fluid streams, and beginning to infiltrate the moment of stream in opposite directions, alternate relative velocity reaches maximum, after infiltrating in opposite directions stream, particle slows down because of the frictional resistance of fluid in opposite directions again; Speed is to be moved to reaction zone by the reverse acceleration of this fluid again after zero, infiltrates original fluid subsequently, and several times so repeatedly vibrate.
In view of the dry tenacity of this tower semi-ring head-on collision system exceeds an order of magnitude (general impinging stream drying speed 1.28%/s than pneumatic conveying drying and fluidized bed drying, fluidized bed drying speed 0.031%/s) characteristics, this tower not only can be used for wet desulphurization, also can be used for the dry desulfurization of semidry method.
The utility model is compared with existing desulfurizing tower, has the following advantages: this desulfurizing tower is to absorb, digesting current sulfur removal technology desulfurizing tower strong point, analyzing weak point, the novel desulfurizing tower of independent research design.Desulfurizing agent adopts nozzle atomization; The tower internals is few simple in structure, and the resistance that convection cell produces is little, and fluid is less scaling in tower; Tower adopts the basic fluidal texture of annular stream fluid in opposite directions; Tower is bigger than phase contact area, liquid-gas ratio is low, flow velocity can be high the little energy consumption of volume is low to development, mass tranfer coefficient height, maintenance is convenient; This tower has good result of use and development prospect.
Description of drawings
Fig. 1 is two sections twice collision type desulfurizing tower schematic diagrames of the utility model, and is only different on the desulfurization hop count and the dividing plate number of plies with the continuous collision type desulfurizing tower of multistage, the principle unanimity.Gas approach 1, dividing plate 2, collecter ring 3, gas vent 4, inner core 5, urceolus 6, outlet 8, injection coil pipe 9, centrifugal energy nozzle 10, jet 11.
Fig. 2 is that the utility model A-A is to view.Wherein, centrifugal energy nozzle 10, jet 11.
Fig. 3 is that the utility model B-B is to view.Wherein, jet 11.
Fig. 4 is centrifugal energy nozzle 10 cutaway views.
The specific embodiment
In conjunction with two sections twice collision type desulfurizing tower schematic diagrames the utility model concrete structure and preferred forms are described:
Being example with milk of lime as the wet desulfurizing process of absorbent, the process that one section reaction zone takes place describes.In Fig. 1, Fig. 2, Fig. 3, press SO in the flue gas
2The shower nozzle that content selects flow to match, and shower nozzle is installed in the shower nozzle sleeve pipe of four gas approach 1, extract it out sleeve pipe during the cleaning maintenance and close the Sleeve sealing valve door then, to realize on-line maintenance.
Flue gas is gone into the circular passage that tower advances inner/outer tube and dividing plate 2 formation, by the typing spout of reducing, strengthens flue gas and quickens head-on collision, replacing after spout detachably is convenient to wear and tear.The circular passage lower clapboard is pressed the airflow direction inclination and is installed in order to avoid the hydrops fouling for 4-8 °.
Every section flue gas feeds compressed air in secondary head-on collision place and is strong oxidizing atmosphere, or establishes in liquid phase at the bottom of the tower and spray coil pipe 9 (wet method with) and spray into compressed air, makes it to final stable product inclination.
After the opening of this reaction zone inner core enters the inner core diffusive separation, the hypomere flue gas is returned into inner core by the inner core base in secondary head-on collision back the epimere flue gas in the secondary head-on collision.
Last hypomere establish in the circular passage toroidal membrane with it each minute two sections, two sections are left suitable gas diffusion space between inner core.
The inner core top is caught the foam layer and is adopted the stainless steel wire of anti-sulphur mesh bag to capture water smoke, catches the foam layer and is provided with the clear water shower nozzle, and blowback is regularly cleaned.
The inside and outside wall of tower and circular passage inwall, inner core all is coated with pps powder coating or selects suitable fiberglass scale to carry out anticorrosion by temperature.
Claims (6)
1. the continuous collision type desulfurizing tower of multistage is characterized in that, comprises tower body, dividing plate (2), collecter ring (3), sprays coil pipe (9), centrifugal energy nozzle (10); Tower body comprises inner core (5) and urceolus (6), and urceolus (6) bilateral symmetry is arranged gas approach (1), and gas approach is equipped with centrifugal energy nozzle (10), is provided with dividing plate (2) between inner core (5), the urceolus (6), and inner core (5) top is provided with collecter ring (3).
2. desulfurizing tower according to claim 1 is characterized in that tower body is cylindrical.
3. desulfurizing tower according to claim 1 is characterized in that tower body designs the multistage desulfurization zone from top to bottom, and every section desulfurization zone is provided with three layers of dividing plate (2) at least, the few one deck of the hypomere desulfurization zone baffle arrangement of tower.
4. desulfurizing tower according to claim 1 is characterized in that, every section head-on collision of tower reaction zone dividing plate has pod apertures, and the orlop dividing plate does not have pod apertures, and last reaction zone inner core (5) also has pod apertures.
5. desulfurizing tower according to claim 1 is characterized in that, is used for wet desulphurization, and urceolus (6) bottom is provided with sprays coil pipe (9) and overfall (7).
6. desulfurizing tower according to claim 1 is characterized in that, the dividing plate inclination angle angle that tower is every section is 4-8 °, orlop dividing plate level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202777739U CN201578989U (en) | 2009-12-09 | 2009-12-09 | Multi-section continuous head-on collision type desulfurizing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202777739U CN201578989U (en) | 2009-12-09 | 2009-12-09 | Multi-section continuous head-on collision type desulfurizing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201578989U true CN201578989U (en) | 2010-09-15 |
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ID=42720981
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202777739U Expired - Lifetime CN201578989U (en) | 2009-12-09 | 2009-12-09 | Multi-section continuous head-on collision type desulfurizing tower |
Country Status (1)
| Country | Link |
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| CN (1) | CN201578989U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295945A (en) * | 2011-08-08 | 2011-12-28 | 刘永言 | Humidity conditioning device for coking coal |
| CN105749828A (en) * | 2014-12-20 | 2016-07-13 | 中国石油化工股份有限公司 | A liquid impinging-stream reactor |
-
2009
- 2009-12-09 CN CN2009202777739U patent/CN201578989U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295945A (en) * | 2011-08-08 | 2011-12-28 | 刘永言 | Humidity conditioning device for coking coal |
| CN102295945B (en) * | 2011-08-08 | 2013-06-26 | 刘永言 | Humidity conditioning device for coking coal |
| CN105749828A (en) * | 2014-12-20 | 2016-07-13 | 中国石油化工股份有限公司 | A liquid impinging-stream reactor |
| CN105749828B (en) * | 2014-12-20 | 2018-04-10 | 中国石油化工股份有限公司 | A kind of liquid phase impact flow reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |