CN202392824U - Device for improving combustion efficiency of boiler by reducing air moisture - Google Patents
Device for improving combustion efficiency of boiler by reducing air moisture Download PDFInfo
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- CN202392824U CN202392824U CN2011205255901U CN201120525590U CN202392824U CN 202392824 U CN202392824 U CN 202392824U CN 2011205255901 U CN2011205255901 U CN 2011205255901U CN 201120525590 U CN201120525590 U CN 201120525590U CN 202392824 U CN202392824 U CN 202392824U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to a device for improving the combustion efficiency of a boiler by reducing the air moisture; the system comprises a power plant power generation subsystem, a CO2 catching subsystem and a solution dehumidification subsystem which is used for integrating the power plant power generation subsystem and the CO2 catching subsystem, wherein the power plant power generation subsystem comprises a boiler (21), a coal bunker (22), a coal feeder (23), a coal mill (24), a combustor (25), an air preheater (26), a dust remover (27), a desulphurization device (28), a draught fan (29), a primary air fan (30), a secondary air fan (31), a steam turbine (32), an electric generator (33), a condenser (34) and a water pump (35). After being dehumidified by the solution dehumidification subsystem, air is sent into the boiler, and the air with the moisture content controlled to be at a reasonable value enters a hearth, so that the condition that the combustion efficiency is reduced since the moisture content of the supplied air is overhigh can be prevented, and the coal consumption is reduced.
Description
Technical field
A kind of solution dehumidification system that utilizes of the utility model design reclaims chemical method CO
2The energy of capturing device improves the device of boiler combustion efficiency, belongs to CO
2Trapping technique energy recovery energy-saving field.
Background technology
The thermal power plant is as CO
2Maximum emission source, the control CO of thermal power plant
2Discharging is the important component part of global reduction of discharging work.Existing C O
2The capturing device energy consumption is higher, causes the reduction of discharging cost too high, and this is the major obstacle that CCS (collecting carbonic anhydride and storage) technology does not have large-scale application so far.
Be currently applied to CO
2What capture mainly is chemical absorption method, in the absorption tower, absorbs CO through chemical absorbent
2, the rich solution after absorbing then returns the regenerator thermal regeneration, gets into compressor compresses liquefaction after the regeneration gas process cooling condensation, is delivered to burial ground and stores, and the lean solution after the regeneration gets into the absorption tower continuation and absorbs CO after cooling
2In regenerator, need solution to be heated to more than 110 ℃ CO
2Gas just can be separated sucking-off.Regenerative process needs a large amount of heats, and the heat part of input is used to heated solution to desorption temperature, and another part is used to make CO
2From rich solution, desorb, some is taken away by water evaporation and regeneration gas.In lean solution cooling and regeneration gas condensation process, this part heat water that is cooled is taken away not utilization.
The height of boiler combustion efficiency directly affects power plant's generating efficiency and coal consumption, and combustion process needs a large amount of air; Send into the size of the water capacity of air; Boiler combustion efficiency is had direct influence, and the air water capacity is excessive, will cause boiler combustion efficiency to reduce.
The utility model adopts the heat of lean solution and regeneration gas to come the weak solution of solution dehumidification system is regenerated, and will dehumidify and send into boiler to the air of reasonable water capacity, prevents because boiler air-supply excess moisture causes boiler combustion efficiency to reduce.
Summary of the invention
Technical problem:The purpose of the utility model provides a kind of device that the air water capacity improves boiler combustion efficiency that reduces.This system is with solution dehumidification technology and chemical method CO
2Trapping technique is the basis, recycles CO
2Script lean solution and the regeneration gas heat that water is taken away that need be cooled in the capture process; Be used for the regeneration of solution dehumidification system; And with solution dehumidification system boiler air-supply is handled to reasonable water capacity, send into burner hearth, prevent because boiler air-supply excess moisture causes boiler combustion efficiency to descend.
Technical scheme:For solving the problems of the technologies described above, the utility model provides a kind of device that the air water capacity improves boiler combustion efficiency that reduces, and it comprises power plant's power generation sub-system, CO
2Capture subsystem and with power plant's power generation sub-system and CO
2Capture the solution dehumidification subsystem that subsystem combines,
Said power plant power generation sub-system comprises boiler, former coal bunker, feeder, coal pulverizer, burner, air preheater, deduster, desulfurizer, air-introduced machine, primary air fan, overfire air fan, steam turbine, generator, condenser, water pump;
CO
2Capture subsystem and comprise absorption tower, rich solution pump, poor rich liquid heat exchanger, regenerator, regeneration gas cooler, gas-liquid separator, lean pump, lean solution heat exchanger, reboiler, lean solution water cooling heat exchanger, regeneration gas water-cooled cooler;
The solution dehumidification subsystem comprises dehumidifier inlet blower fan, solution moisture removing device, weak solution pump, water cooling heat exchanger, concentrated solution pump, solution regenerator, regenerator inlet blower fan, concentrated solution weak solution heat exchanger;
In the described solution dehumidification subsystem, the outlet of dehumidifier inlet blower fan links to each other with the blast entrance of solution moisture removing device through airduct, and the air outlet slit of solution moisture removing device communicates with the inlet of primary air fan and overfire air fan respectively; Weak solution pump intake and the outlet of solution moisture removing device weak solution are joined, and the weak solution pump discharge links to each other with the weak solution inlet of concentrated solution weak solution heat exchanger; The weak solution outlet of concentrated solution weak solution heat exchanger communicates with the weak solution inlet of lean solution heat exchanger; The weak solution outlet of lean solution heat exchanger links to each other with the weak solution inlet of regeneration gas cooler; The weak solution outlet of regeneration gas cooler communicates with the weak solution inlet of solution regenerator; The concentrated solution outlet of solution regenerator links to each other with the import of concentrated solution pump; The concentrated solution inlet of concentrated solution delivery side of pump and concentrated solution weak solution heat exchanger joins; The concentrated solution outlet of concentrated solution weak solution heat exchanger links to each other with the concentrated solution inlet of water cooling heat exchanger; The concentrated solution outlet of water cooling heat exchanger is connected with the concentrated solution inlet of solution moisture removing device; The outlet of regenerator inlet blower fan links to each other with the blast entrance of solution regenerator;
Described CO
2Capture in the subsystem, flue gas links to each other with the absorption tower gas feed; Absorption tower rich solution outlet is joined with the rich solution pump; The rich solution pump discharge communicates with the rich solution inlet of poor rich liquid heat exchanger; The outlet of poor rich liquid heat exchanger rich solution links to each other with regenerator rich solution inlet; The outlet of regenerator lean solution communicates with the lean pump inlet; The lean pump outlet links to each other with the lean solution inlet of poor rich liquid heat exchanger; The lean solution outlet of poor rich liquid heat exchanger is joined with the lean solution inlet of lean solution heat exchanger; The lean solution outlet of lean solution heat exchanger communicates with the lean solution inlet of lean solution water cooling heat exchanger; The lean solution outlet of lean solution water cooling heat exchanger links to each other with the lean solution inlet on absorption tower; The outlet of regenerator regeneration gas is joined with regeneration gas cooler regeneration gas inlet; The regeneration gas outlet of regeneration gas cooler communicates with the regeneration gas inlet of regeneration gas water-cooled cooler; The regeneration gas outlet of regeneration gas water-cooled cooler communicates with the gas access of gas-liquid separator;
In the described power plant power generation sub-system, the solution moisture removing device air outlet slit communicates with the inlet of primary air fan and overfire air fan.
Beneficial effect:
(1)The utility model provides a kind of device that improves boiler combustion efficiency, recycles lean solution and regeneration gas heat that the water that originally is cooled is taken away, is used for the weak solution regeneration of solution dehumidification system.
(2)Solution dehumidification system is used to control boiler air-supply humidity to reasonable value, prevents because the too high boiler combustion efficiency that causes of boiler air-supply humidity descends.
(3)The utility model has made full use of the heat that the water that originally directly is cooled is taken away, and improves boiler combustion efficiency, reduces and installs CO additional
2Behind the trapping system to the adverse effect of power plant efficiency.
Description of drawings
Fig. 1 is the installation drawing that improves boiler combustion efficiency;
Wherein: absorption tower 1; Rich solution pump 2; Poor rich liquid heat exchanger 3; Regenerator 4; Regeneration gas cooler 5; Gas-liquid separator 6; Lean pump 7; Lean solution heat exchanger 8; Reboiler 9; Dehumidifier inlet blower fan 10; Solution moisture removing device 11; Weak solution pump 12; Water cooling heat exchanger 13; Concentrated solution pump 14; Solution regenerator 15; Regenerator inlet blower fan 16; Concentrated solution weak solution heat exchanger 17; Cooling tower 18; Lean solution water cooling heat exchanger 19; Regeneration gas water-cooled cooler 20; Boiler 21; Former coal bunker 22; Feeder 23; Coal pulverizer 24; Burner 25; Air preheater 26; Deduster 27; Desulfurizer 28; Air-introduced machine 29; Primary air fan 30; Overfire air fan 31; Steam turbine 32; Generator 33; Condenser 34; Water pump 35.
The specific embodiment
Below with reference to accompanying drawings the utility model is described.
Utilize solution dehumidification system to reclaim chemical method CO
2The method of capturing device energy is to be based upon solution dehumidification technology and chemical method CO
2On the trapping technique, solution dehumidification agent commonly used has lithium-bromide solution, lithium chloride solution and calcium chloride solution etc.; Commonly used be used to capture CO
2Solution MEA solution, MDEA solution etc. are arranged.The utility model provides a kind of system that the air water capacity improves boiler combustion efficiency that reduces, and it comprises power plant's power generation sub-system, CO
2Capture subsystem and with power plant's power generation sub-system and CO
2Capture the solution dehumidification subsystem that subsystem combines, said power plant power generation sub-system comprises boiler, former coal bunker, feeder, coal pulverizer, burner, air preheater, deduster, desulfurizer, air-introduced machine, primary air fan, overfire air fan, steam turbine, generator, condenser, water pump;
CO
2Capture subsystem and comprise absorption tower, rich solution pump, poor rich liquid heat exchanger, regenerator, regeneration gas cooler, gas-liquid separator, lean pump, lean solution heat exchanger, reboiler, lean solution water cooling heat exchanger, regeneration gas water-cooled cooler;
The solution dehumidification subsystem comprises dehumidifier inlet blower fan, solution moisture removing device, weak solution pump, water cooling heat exchanger, concentrated solution pump, solution regenerator, regenerator inlet blower fan, concentrated solution weak solution heat exchanger;
In the described solution dehumidification subsystem, outdoor air is admitted in the solution moisture removing device 11 through dehumidifier inlet blower fan 10 and contacts dehumidifying with concentrated solution, and the dry air after the dehumidifying is sent into burner hearth by the primary air fan 30 of boiler with overfire air fan 31; Absorbed the weak solution that obtains after water in air is divided by weak solution pump 12 send in the concentrated solution weak solution heat exchanger 17 with regeneration after the concentrated solution heat-shift that obtains, the weak solution after the heat exchange then is admitted in the lean solution heat exchanger 8 and CO
2Capture the lean solution heat exchange in the subsystem; Be sent to the regeneration gas heat exchange that exports with regenerator 4 in the regeneration gas cooler then again; Make weak solution be heated to regeneration temperature; Then weak solution is admitted in the solution regenerator 15 contact with outdoor air and obtains regeneration, and regeneration air is by 16 introducings of regenerator inlet blower fan; The concentrated solution that obtains after the regeneration is sent in the concentrated solution weak solution heat exchanger 17 and the weak solution heat exchange by concentrated solution pump 14, then is admitted to water cooling heat exchanger 13, further is cooled to the solution moisture removing device inlet temperature, sends into solution moisture removing device 11 then;
Described CO
2Capture in the subsystem, the lean solution reaction that power plant obtains after getting into absorption tower 1 and regenerate through the flue gas after the desulfurization is removed CO
2After the purified gas that obtains enter atmosphere; The rich solution that obtains after the reaction is sent into poor rich liquid heat exchanger 3 and lean solution heat-shift through rich solution pump 2, and rich solution is admitted to regenerator 4 regeneration then, and in regenerator 4, rich solution is heated to regeneration temperature by reboiler 9, with CO wherein
2Desorb; The lean solution that obtains after the regeneration is sent into poor rich liquid heat exchanger 3 and rich solution heat exchange through lean pump 7; Lean solution behind the heat-shift then is admitted in the lean solution heat exchanger 8 the weak solution heat exchange with the solution dehumidification subsystem; And then be admitted in the lean solution water cooling heat exchanger 19, lean solution is admitted to absorption tower 1 after reducing to absorption temperature; The CO that desorbs in the regenerator 4
2Get into the weak solution in the further heated solution dehumidifying subsystem in the regeneration gas cooler 5 with steam, make weak solution obtain regeneration, the CO after the cooling
2Be admitted to further cooling in the regeneration gas water-cooled cooler 20 with condensate, so that the CO of outlet
2Further be compressed and liquefy, condensate is back to regenerator 4 from gas-liquid separator 6;
In the described power plant power generation sub-system; Dry air after handling through solution dehumidification system is sent in the coal pulverizer 24 by primary air fan 30 by a part and is mixed with coal dust and send into burner 25; A part is sent into burner hearth by overfire air fan 31 in addition, after coal dust and air burn in burner hearth, heat is passed to the feedwater of being sent here by water pump 35 through boiler water wall; Feedwater is heated gasification in boiler 21; Pushing turbine 32 acting generating then then distributes steam behind the electricity and sends in the condenser 34 and condense into water, is sent in the boiler by water pump 35 again; CO in the gas fume after burning
2Content raises, and flue gas gets into dust arrester 27 through air preheater 26 continuation cooling backs after discharging burner hearth, after desulfurizer 28 dedustings and the desulfurization, sends into CO through blower fan 29
2Capture in the subsystem and carry out CO
2Capture.
Referring to Fig. 1, the system of the raising boiler combustion efficiency that the utility model provides, it comprises power plant's power generation sub-system, CO
2Capture subsystem and with power plant's power generation sub-system and CO
2Capture the solution dehumidification subsystem that subsystem combines,
Said power plant power generation sub-system comprises boiler 21, former coal bunker 22, feeder 23, coal pulverizer 24, burner 25, air preheater 26, deduster 27, desulfurizer 28, air-introduced machine 29, primary air fan 30, overfire air fan 31, steam turbine 32, generator 33, condenser 34, water pump 35;
CO
2Capture subsystem and comprise absorption tower 1, rich solution pump 2, poor rich liquid heat exchanger 3, regenerator 4, regeneration gas cooler 5, gas-liquid separator 6, lean pump 7, lean solution heat exchanger 8, reboiler 9, lean solution water cooling heat exchanger 19, regeneration gas water-cooled cooler 20;
The solution dehumidification subsystem comprises dehumidifier inlet blower fan 10, solution moisture removing device 11, weak solution pump 12, water cooling heat exchanger 13, concentrated solution pump 14, solution regenerator 15, regenerator inlet blower fan 16, concentrated solution weak solution heat exchanger 17;
In the described solution dehumidification subsystem, the outlet of dehumidifier inlet blower fan 10 links to each other with the blast entrance of solution moisture removing device 11 through airduct, and the air outlet slit of solution moisture removing device 11 communicates with the inlet of primary air fan 30 and overfire air fan 31 respectively; Weak solution pump 12 inlets join with the outlet of solution moisture removing device 11 weak solutions, and 12 outlets of weak solution pump link to each other with the weak solution inlet of concentrated solution weak solution heat exchanger 17; The weak solution outlet of concentrated solution weak solution heat exchanger 17 communicates with the weak solution inlet of lean solution heat exchanger 8; The weak solution outlet of lean solution heat exchanger 8 links to each other with the weak solution inlet of regeneration gas cooler 5; The weak solution outlet of regeneration gas cooler 5 communicates with the weak solution inlet of solution regenerator 15; The concentrated solution outlet of solution regenerator 15 links to each other with the import of concentrated solution pump 14; The concentrated solution inlet of the outlet of concentrated solution pump 14 and concentrated solution weak solution heat exchanger 17 joins; The concentrated solution outlet of concentrated solution weak solution heat exchanger 17 links to each other with the concentrated solution inlet of water cooling heat exchanger 13; The concentrated solution outlet of water cooling heat exchanger 13 is connected with the concentrated solution inlet of solution moisture removing device 11; The outlet of regenerator inlet blower fan 16 links to each other with the blast entrance of solution regenerator 15;
Described CO
2Capture in the subsystem, flue gas links to each other with absorption tower 1 gas feed; Absorption tower 1 rich solution outlet is joined with rich solution pump 2; 2 outlets of rich solution pump communicate with the rich solution inlet of poor rich liquid heat exchanger 3; The outlet of poor rich liquid heat exchanger 3 rich solutions links to each other with regenerator 4 rich solutions inlet; The outlet of regenerator 4 lean solutions communicates with lean pump 7 inlets; Lean pump 7 outlets link to each other with the lean solution inlet of poor rich liquid heat exchanger 3; The lean solution outlet of poor rich liquid heat exchanger 3 is joined with the lean solution inlet of lean solution heat exchanger 8; The lean solution outlet of lean solution heat exchanger 8 communicates with the lean solution inlet of lean solution water cooling heat exchanger 19; The lean solution outlet of lean solution water cooling heat exchanger 19 links to each other with the lean solution inlet on absorption tower 1; The outlet of regenerator 4 regeneration gases is joined with regeneration gas cooler 5 regeneration gases inlet; The regeneration gas outlet of regeneration gas cooler 5 communicates with the regeneration gas inlet of regeneration gas water-cooled cooler 20; The regeneration gas outlet of regeneration gas water-cooled cooler 20 communicates with the gas access of gas-liquid separator 6;
In the described power plant power generation sub-system, solution moisture removing device 11 air outlet slits communicate with the inlet of primary air fan 30 and overfire air fan 31.
Referring to Fig. 1, dehumidifying air in solution moisture removing device 11 after, the solution dehumidification subsystem communicates with the inlet of primary air fan 30 and overfire air fan 31, and control boiler air-supply water capacity prevents because the excessive boiler combustion efficiency that causes of the humidity of blowing reduces to reasonable value.
The outlet weak solution of solution moisture removing device 11 is earlier in the lower lean solution heat exchange of lean solution heat exchanger 8 neutral temperatures simultaneously; The regeneration gas heat exchange higher in regeneration gas cooler 5 again with temperature; Make weak solution obtain regeneration, the weak solution after the regeneration is used to reduce the water capacity of boiler 21 air-supplies.
Lean solution water cooling heat exchanger 19 is used for lean solution heat exchanger 8 outlet lean solutions are cooled to absorption temperature, and regeneration gas water-cooled cooler 20 is used for that regeneration gas cooler 5 outlet regenerators are cooled to the suction port of compressor and requires temperature.
Every relating to reclaimed the CO of power plant
2Trapping system lean solution heat and regeneration gas heat; The heat that this is partially recycled is used for the weak solution regeneration of solution dehumidification system; And the air after the solution dehumidification system dehumidifying is sent into boiler of power plant; Prevent to reduce, comprise and use follow-on solution dehumidification system or follow-on CO owing to boiler air-supply excess moisture causes efficiency of combustion
2Trapping system is as long as principle is consistent, all within the claim scope.
At CO
2Capture in the subsystem, flue gas links to each other with the absorption tower gas feed; Absorption tower rich solution outlet is joined with the rich solution pump; The rich solution pump discharge communicates with the rich solution inlet of poor rich liquid heat exchanger; The outlet of poor rich liquid heat exchanger rich solution links to each other with regenerator rich solution inlet; The outlet of regenerator lean solution communicates with the lean pump inlet; The lean pump outlet links to each other with the lean solution inlet of poor rich liquid heat exchanger; The lean solution outlet of poor rich liquid heat exchanger is joined with the lean solution inlet of lean solution heat exchanger; The lean solution outlet of lean solution heat exchanger communicates with the lean solution inlet of lean solution water cooling heat exchanger; The lean solution outlet of lean solution water-cooled heat exchange links to each other with the lean solution inlet on absorption tower; The outlet of regenerator regeneration gas is joined with regeneration gas cooler regeneration gas inlet; The regeneration gas outlet of regeneration gas cooler communicates with the regeneration gas inlet of regeneration gas water-cooled cooler; The regeneration gas outlet of regeneration gas water-cooled cooler communicates with the gas access of gas-liquid separator.
In power plant's power generation sub-system, the solution moisture removing device air outlet slit communicates with the inlet of primary air fan and overfire air fan.
The utility model utilizes the weak solution after the solution dehumidification system dehumidifying to pass through heat exchanger elder generation and the lower lean solution heat exchange of temperature; Higher with temperature then regeneration gas heat exchange; Make weak solution obtain regeneration; And solution dehumidification system is used to control boiler air-supply humidity to reasonable value, prevent because the too high boiler combustion efficiency that causes of boiler air-supply humidity descends.
Referring to Fig. 1, in the solution dehumidification subsystem, the outlet of blower fan 10 links to each other with the blast entrance of solution moisture removing device 11 through airduct, and the air outlet slit of dehumidifier 11 communicates with the inlet of primary air fan 30 and overfire air fan 31; Weak solution pump 12 inlets join with the outlet of dehumidifier 11 weak solutions, and outlet links to each other with the weak solution inlet of concentrated solution weak solution heat exchanger 17; The weak solution outlet of concentrated solution weak solution heat exchanger 17 communicates with the weak solution inlet of lean solution heat exchanger 8; The weak solution outlet of lean solution heat exchanger 8 links to each other with the weak solution inlet of regeneration gas cooler 5; The weak solution outlet of regeneration gas cooler 5 communicates with the weak solution inlet of solution regenerator 15; The concentrated solution outlet of solution regenerator 15 links to each other with the import of concentrated solution pump 14; The concentrated solution inlet of the outlet of concentrated solution pump 14 and concentrated solution weak solution heat exchanger 17 joins; The concentrated solution outlet of concentrated solution weak solution heat exchanger 17 links to each other with the concentrated solution inlet of water cooling heat exchanger 13; The concentrated solution outlet of water cooling heat exchanger 13 is connected with the concentrated solution inlet of solution moisture removing device 11; The outlet of blower fan 16 links to each other with the blast entrance of solution regenerator 15.
At CO
2Capture in the subsystem, flue gas links to each other with the absorption tower gas feed; Absorption tower 1 rich solution outlet is joined with rich solution pump 2; 2 outlets of rich solution pump communicate with the rich solution inlet of poor rich liquid heat exchanger 3; The outlet of poor rich liquid heat exchanger 3 rich solutions links to each other with regenerator 4 rich solutions inlet; The outlet of regenerator 4 lean solutions communicates with lean pump 7 inlets; Lean pump 7 outlets link to each other with the lean solution inlet of poor rich liquid heat exchanger 3; The lean solution outlet of poor rich liquid heat exchanger 3 is joined with the lean solution inlet of lean solution heat exchanger 8; The lean solution outlet of lean solution heat exchanger 8 communicates with the lean solution inlet of lean solution water cooling heat exchanger 19; The lean solution outlet of lean solution water-cooled heat exchange 19 links to each other with the lean solution inlet on absorption tower 1; The outlet of regenerator 4 regeneration gases is joined with regeneration gas cooler 5 regeneration gases inlet; The regeneration gas outlet of regeneration gas cooler 5 communicates with the regeneration gas inlet of regeneration gas water-cooled cooler 20; The regeneration gas outlet of regeneration gas water-cooled cooler 20 communicates with the gas access of gas-liquid separator 6.
The above is merely the preferred embodiments of the utility model; The protection domain of the utility model does not exceed with above-mentioned embodiment; As long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (1)
1. one kind is reduced the device that the air water capacity improves boiler combustion efficiency, it is characterized in that: it comprises power plant's power generation sub-system, CO
2Capture subsystem and with power plant's power generation sub-system and CO
2Capture the solution dehumidification subsystem that subsystem combines,
Said power plant power generation sub-system comprises boiler (21), former coal bunker (22), feeder (23), coal pulverizer (24), burner (25), air preheater (26), deduster (27), desulfurizer (28), air-introduced machine (29), primary air fan (30), overfire air fan (31), steam turbine (32), generator (33), condenser (34), water pump (35);
CO
2Capture subsystem and comprise absorption tower (1), rich solution pump (2), poor rich liquid heat exchanger (3), regenerator (4), regeneration gas cooler (5), gas-liquid separator (6), lean pump (7), lean solution heat exchanger (8), reboiler (9), lean solution water cooling heat exchanger (19), regeneration gas water-cooled cooler (20);
The solution dehumidification subsystem comprises dehumidifier inlet blower fan (10), solution moisture removing device (11), weak solution pump (12), water cooling heat exchanger (13), concentrated solution pump (14), solution regenerator (15), regenerator inlet blower fan (16), concentrated solution weak solution heat exchanger (17);
In the described solution dehumidification subsystem; The outlet of dehumidifier inlet blower fan (10) links to each other with the blast entrance of solution moisture removing device (11) through airduct, and the air outlet slit of solution moisture removing device (11) communicates with the inlet of primary air fan (30) and overfire air fan (31) respectively; Weak solution pump (12) inlet joins with the outlet of solution moisture removing device (11) weak solution, and weak solution pump (12) outlet links to each other with the weak solution inlet of concentrated solution weak solution heat exchanger (17); The weak solution outlet of concentrated solution weak solution heat exchanger (17) communicates with the weak solution inlet of lean solution heat exchanger (8); The weak solution outlet of lean solution heat exchanger (8) links to each other with the weak solution inlet of regeneration gas cooler (5); The weak solution outlet of regeneration gas cooler (5) communicates with the weak solution inlet of solution regenerator (15); The concentrated solution outlet of solution regenerator (15) links to each other with the import of concentrated solution pump (14); The concentrated solution inlet of the outlet of concentrated solution pump (14) and concentrated solution weak solution heat exchanger (17) joins; The concentrated solution outlet of concentrated solution weak solution heat exchanger (17) links to each other with the concentrated solution inlet of water cooling heat exchanger (13); The concentrated solution outlet of water cooling heat exchanger (13) is connected with the concentrated solution inlet of solution moisture removing device (11); The outlet of regenerator inlet blower fan (16) links to each other with the blast entrance of solution regenerator (15); Described CO
2Capture in the subsystem, flue gas links to each other with absorption tower (1) gas feed; Absorption tower (1) rich solution outlet is joined with rich solution pump (2); Rich solution pump (2) outlet communicates with the rich solution inlet of poor rich liquid heat exchanger (3); The outlet of poor rich liquid heat exchanger (3) rich solution links to each other with regenerator (4) rich solution inlet; The outlet of regenerator (4) lean solution communicates with lean pump (7) inlet; Lean pump (7) outlet links to each other with the lean solution inlet of poor rich liquid heat exchanger (3); The lean solution outlet of poor rich liquid heat exchanger (3) is joined with the lean solution inlet of lean solution heat exchanger (8); The lean solution outlet of lean solution heat exchanger (8) communicates with the lean solution inlet of lean solution water cooling heat exchanger (19); The lean solution outlet of lean solution water cooling heat exchanger (19) links to each other with the lean solution inlet of absorption tower (1); The outlet of regenerator (4) regeneration gas is joined with regeneration gas cooler (5) regeneration gas inlet; The regeneration gas outlet of regeneration gas cooler (5) communicates with the regeneration gas inlet of regeneration gas water-cooled cooler (20); The regeneration gas outlet of regeneration gas water-cooled cooler (20) communicates with the gas access of gas-liquid separator (6);
In the described power plant power generation sub-system, solution moisture removing device (11) air outlet slit communicates with the inlet of primary air fan (30) and overfire air fan (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205255901U CN202392824U (en) | 2011-12-15 | 2011-12-15 | Device for improving combustion efficiency of boiler by reducing air moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205255901U CN202392824U (en) | 2011-12-15 | 2011-12-15 | Device for improving combustion efficiency of boiler by reducing air moisture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392824U true CN202392824U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205255901U Withdrawn - After Issue CN202392824U (en) | 2011-12-15 | 2011-12-15 | Device for improving combustion efficiency of boiler by reducing air moisture |
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| Country | Link |
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| CN (1) | CN202392824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519053A (en) * | 2011-12-15 | 2012-06-27 | 东南大学 | System capable of improving combustion efficiency of boiler by means of reducing moisture content of air |
-
2011
- 2011-12-15 CN CN2011205255901U patent/CN202392824U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519053A (en) * | 2011-12-15 | 2012-06-27 | 东南大学 | System capable of improving combustion efficiency of boiler by means of reducing moisture content of air |
| CN102519053B (en) * | 2011-12-15 | 2014-07-09 | 东南大学 | System capable of improving combustion efficiency of boiler by means of reducing moisture content of air |
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