CN203507814U - Efficient circulating fluidized bed desulfurizer - Google Patents
Efficient circulating fluidized bed desulfurizer Download PDFInfo
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- CN203507814U CN203507814U CN201320557610.2U CN201320557610U CN203507814U CN 203507814 U CN203507814 U CN 203507814U CN 201320557610 U CN201320557610 U CN 201320557610U CN 203507814 U CN203507814 U CN 203507814U
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- venturi tube
- bed desulfurizer
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Abstract
The utility model relates to an efficient circulating fluidized bed desulfurizer, belonging to the technical field of an efficient circulating fluidized bed desulfurizer. The efficient circulating fluidized bed desulfurizer comprises a reactor, wherein the reactor is composed of a Venturi tube, an outlet tube expansion section and a straight section; the Venturi tube, the outlet tube expansion section and the straight section are sequentially connected from bottom to top; the Venturi tube extends downward in a bend manner to form an inlet of the reactor; an outlet of the reactor is formed at the top end of the straight section; a guide plate is arranged at an inlet of the reactor to guarantee uniform distribution of smoke. The efficient circulating fluidized bed desulfurizer provided by the utility model has the advantages of safety in use, sufficient reaction, uniform pressure drop and the like.
Description
Technical field
The utility model relates to a kind of efficient circulating fluid bed desulfurizer, belongs to efficient circulating fluid bed desulfurizer technical field.
Background technology
Circulating fluidized bed desulfur technology is mainly theoretical according to recirculating fluidized bed, adopts suspended pattern, makes absorbent in reactor inner suspension, circulation, with the SO in flue gas
2fully haptoreaction realizes a kind of method of desulfurization.Efficient circulating fluid bed desulfurizer comprises reactor 1a, sack cleaner 2a and the air-introduced machine 3a installing successively, reactor 1a mainly comprises Venturi tube 11a and the superposed direct tube section 12a that is positioned at bottom, from boiler former flue gas out from Venturi tube 11a enters reactor 1a, below Venturi tube 11a and by air flume, send into the absorbent of reactor 1a and the lime of lime silo 6a mixes, high velocity air through Venturi tube 11a washes away, and flue gas, lime and absorbent enter the direct tube section 12a of reactor after fully mixing; One end that Venturi tube 11a is connected with direct tube section 12a is called outlet expander section 13a, and outlet expander section 13a place is provided with water injector 4a, spray water to reduce the cigarette temperature in desulfurizing tower, and under the condition of cooling and humidification, the SO in flue gas
2react with absorbent and generate calcium sulfite and calcium sulfate; Reacted flue gas carries a large amount of dry solids and enters sack cleaner 2a, and through reaction, the flue gas after cleaning enters chimney 5a through air-introduced machine 3a.
This fluid-bed sweetening tower can be removed a large amount of SO in flue gas
2yet,, because the pressure drop of stack gas desulfurization system of circulating fluid bed is larger, the pressure head allowance of the air-introduced machine of general existing power plant can not overcome so large forcing to submit, need to increase new desulfurization blower fan; Meanwhile, high droop loss can make operating cost increase, and due to the continuous turbulence of a large amount of materials in absorption tower, the fluctuation of pressure drop of recirculating fluidized bed is larger, may affect at any time the stable of negative pressure in boiler furnace, is unfavorable for safety in production.
Have based on this, make the utility model.
Utility model content
In order to overcome the above-mentioned technical problem of existing apparatus, the utility model provides a kind of use safety, simple operation, the uniform efficient circulating fluid bed desulfurizer of reaction.
For achieving the above object, the technical scheme that the utility model is taked is as follows:
Efficient circulating fluid bed desulfurizer, comprise reactor, reactor consists of Venturi tube, outlet expander section and direct tube section, Venturi tube, outlet expander section are from bottom to top connected in turn with direct tube section, Venturi tube extends to form the entrance of reactor downwards with bend pipe form, the outlet of reactor is arranged on the top of direct tube section, and described reactor inlet place is provided with guide plate, to guarantee being uniformly distributed of flue gas.
For realizing better result of use, further arranging of technique scheme is as follows:
Described guide plate is foliaceous, and parallel flue center line is evenly arranged in the bend pipe structure between Venturi tube and reactor inlet.
Described reactor is connected with deduster and air-introduced machine, between reactor and deduster, deduster and air-introduced machine, by pipeline, be connected, desulphurization system is established recirculating gas duct, recirculating gas duct one end is connected to desulfurization reactor entrance, the other end by baffle door, be connected on the pipeline between air-introduced machine and deduster or air-introduced machine after pipeline on, when boiler operatiopn load is lower, open the baffle door on recirculating gas duct, to regulate the flue gas flow that enters desulfurization reactor.
SO in flue gas
2generate calcium sulfite and calcium sulfate with absorbent lime reaction, the utility model arranges guide plate in the porch of reactor, improves smoke distribution in reactor, guarantees that flue gas can fully mix and contact with absorbent; Reduce into tower air resistance simultaneously.It is also one of condition determining chemical reaction degree that gas-solid two-phase is fully mixed, solid phase is main in tower realizes the abundant mixing of gas-solid two-phase by gas phase fluidised form as power, if there is bias current skewness in gas phase in tower, there is local reaction vacuum, the utilization rate of desulfurizing agent also can reduce, and finally causes total desulfuration efficiency on the low side.The pipe bent position of the utility model between reactor inlet and Venturi tube arranges gas channeling plate, when the flue gas entering rapidly by entrance when bend pipe enters Venturi tube, guide plate can be uniformly distributed after making flue gas enter tower, can improve the even contact of gas-solid two-phase, reduce into tower air resistance simultaneously, avoid occurring the situation of gas phase bias current; Recirculating gas duct the flue gas flow that can regulate reactor inlet place is set, improve holder power and the loose grey function of flue gas in reactor, reduce because of the lower impact that causes reactor ICFB to set up of boiler operatiopn load.Adopt the utility model, SO
2removal efficiency>=90%, total crushing (containing reactor, flue)≤1700Pa.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing apparatus;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the arrangement mode schematic diagram of guide plate in Fig. 2.
Number in the figure: 1, reactor; 11, Venturi tube; 12, outlet expander section; 13, direct tube section; 14, entrance; 15, tower top; 16, outlet; 17, pipeline one; 2, deduster; 21, circulating ash co pipe; 22, pipeline two; 3, air-introduced machine; 4, water injector; 5, lime silo; 6, recirculating gas duct; 61, baffle door; 7, guide plate.
The specific embodiment
Embodiment 1
The efficient circulating fluid bed desulfurizer of the present embodiment, in conjunction with Fig. 2, comprise reaction, 1, reactor 1 is by Venturi tube 11, outlet expander section 12 and direct tube section 13 form, Venturi tube 11, outlet expander section 12 is from bottom to top connected in turn with direct tube section 13, Venturi tube 11 extends to form the entrance 14 of reactor 1 downwards with bend pipe form, the outlet 16 of reactor 1 is arranged on the top of direct tube section 13, in the present embodiment, in bend pipe structure between reactor inlet 14 and Venturi tube 11, be provided with guide plate 7, in conjunction with Fig. 3, guide plate 7 is foliaceous, the center line of parallel Venturi tube 11 bend pipe structures evenly arranges, reactor 1 is connected with deduster 2 and air-introduced machine 3, reactor 1 and deduster 2, between deduster 2 and air-introduced machine 3, by pipeline, be connected, be called pipeline 1 and pipeline 2 22, pipeline 1 is communicated with reactor outlet 16 with deduster 2, deduster 2 belows are switched to the direct tube section 13 of reactor by circulating ash co pipe 21, top is by the outer recirculating gas duct 6 that is communicated with of pipeline 2 22, recirculating gas duct 6 one ends are connected to desulfurization reactor entrance 14, the other end is connected on the pipeline 2 22 between air-introduced machine 3 and deduster 2 by baffle door 61, when boiler operatiopn load is lower, open the baffle door 61 on recirculating gas duct 6, to regulate the flue gas flow that enters desulfurization reactor.
The utility model arranges guide plate 7 in the porch of reactor, can improve smoke distribution in reactor, guarantees that flue gas can fully mix and contact with absorbent; Reduce into tower air resistance simultaneously.It is also one of condition determining chemical reaction degree that gas-solid two-phase is fully mixed, solid phase is main in tower realizes the abundant mixing of gas-solid two-phase by gas phase fluidised form as power, if there is bias current skewness in gas phase in tower, there is local reaction vacuum, the utilization rate of desulfurizing agent also can reduce, and finally causes total desulfuration efficiency on the low side.The pipe bent position of the utility model between reactor inlet 14 and Venturi tube 11 arranges gas channeling plate 7, when the flue gas entering rapidly by entrance 14 when bend pipe enters Venturi tube 11, guide plate 7 can be uniformly distributed after making flue gas enter tower, can improve the even contact of gas-solid two-phase, reduce into tower air resistance simultaneously, avoid occurring the situation of gas phase bias current; Recirculating gas duct 6 the flue gas flow that can regulate reactor inlet 14 places is set, improve holder power and the loose grey function of reactor 1 interior flue gas, reduce because of the lower impact that causes reactor 1 ICFB to set up of boiler operatiopn load.Adopt the utility model, SO
2removal efficiency>=90%, total crushing (containing reactor, flue)≤1700Pa.
Embodiment 2
The present embodiment is identical with setting and the operation principle of embodiment 1, difference is: recirculating gas duct 6 one ends are connected to reactor inlet 14 places, the other end is connected on the pipeline after air-introduced machine 3 by baffle door 61, using clean air as regulating flue gas flow gas to send into reactor inlet 14 places.
Claims (2)
1. efficient circulating fluid bed desulfurizer, it is characterized in that: comprise reactor, reactor consists of Venturi tube, outlet expander section and direct tube section, Venturi tube, outlet expander section are from bottom to top connected in turn with direct tube section, Venturi tube extends to form the entrance of reactor downwards with bend pipe form, the outlet of reactor is arranged on the top of direct tube section, and described reactor inlet place is provided with guide plate, to guarantee being uniformly distributed of flue gas.
2. efficient circulating fluid bed desulfurizer as claimed in claim 1, is characterized in that: described guide plate is foliaceous, and parallel flue center line is evenly arranged in reactor inlet turning.
3. efficient circulating fluid bed desulfurizer as claimed in claim 1 or 2, it is characterized in that: described reactor is connected with deduster and air-introduced machine, between reactor and deduster, deduster and air-introduced machine, by pipeline, be connected, desulphurization system is established recirculating gas duct, recirculating gas duct one end is connected to desulfurization reactor entrance, the other end is connected on the pipeline after deduster, to regulate the flue gas flow that enters desulfurization reactor.
4. efficient circulating fluid bed desulfurizer as claimed in claim 3, is characterized in that: described recirculation conduit is connected with the pipeline between air-introduced machine with deduster by baffle door.
5. efficient circulating fluid bed desulfurizer as claimed in claim 3, is characterized in that: described recirculation conduit is connected with the pipeline after air-introduced machine by baffle door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557610.2U CN203507814U (en) | 2013-09-09 | 2013-09-09 | Efficient circulating fluidized bed desulfurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557610.2U CN203507814U (en) | 2013-09-09 | 2013-09-09 | Efficient circulating fluidized bed desulfurizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203507814U true CN203507814U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557610.2U Expired - Lifetime CN203507814U (en) | 2013-09-09 | 2013-09-09 | Efficient circulating fluidized bed desulfurizer |
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| CN (1) | CN203507814U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268274A (en) * | 2016-08-31 | 2017-01-04 | 无锡市华星电力环保修造有限公司 | A kind of efficient circulating fluid bed desulfurizer |
| WO2018065323A1 (en) * | 2016-10-05 | 2018-04-12 | General Electric Technology Gmbh | Multi-function duct for dry scrubber system |
-
2013
- 2013-09-09 CN CN201320557610.2U patent/CN203507814U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268274A (en) * | 2016-08-31 | 2017-01-04 | 无锡市华星电力环保修造有限公司 | A kind of efficient circulating fluid bed desulfurizer |
| WO2018065323A1 (en) * | 2016-10-05 | 2018-04-12 | General Electric Technology Gmbh | Multi-function duct for dry scrubber system |
| US10232310B2 (en) | 2016-10-05 | 2019-03-19 | General Electric Technology Gmbh | Multi-function duct for dry scrubber system |
| CN109789370A (en) * | 2016-10-05 | 2019-05-21 | 通用电器技术有限公司 | Multifunctional pipe for dry scrubber system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |