CN209101252U - Integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system - Google Patents
Integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system Download PDFInfo
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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 discloses belong to a kind of integrated boiler smoke heat of coal-burning power plant's technical field of power generation, the coal generating system of decarburization waste heat and absorption heat pump.The system includes coal fired power generation subsystem, decarburization Waste Heat Reuse subsystem and flue gas heat utilization subsystem.The utility model in structure (1) utilizes decarbonizing process waste heat preheated air, saves part boiler higher temperatures gas bypass and heats water supply, reduces heat regenerative system extracted steam from turbine；(2) decarbonizing process waste heat is recycled by absorption heat pump, substitutes part decarburization with vapour and provides heat for reboiler；(3) by the hydrophobic recycling of reboiler, the steam extraction degree of superheat is made full use of, to reduce decarburization steam extraction amount.Coal burning system of the utility model compared to routine based on MEA decarburization, integrates absorption heat pump and fume afterheat utilizes two kinds of energy saving means, optimizes to power plant soot decarburization, provides direction for the utilization of decarbonizing process waste heat.
Description
Technical field
The utility model belongs to coal-burning power plant's technical field of power generation, in particular to a kind of integrated residual heat from boiler fume, decarburization
Waste heat and absorption heat pump coal generating system.
Background technique
Coal in China consumption figure accounts for 70% or so of non-renewable energy total quantity consumed for a long time.Wherein, with thermal power generation
Based on power industry, raw coal consumption accounts for 50% or more of domestic consumption of coal total amount.The continuous development of power generation,
Consequent is air pollution and the increasingly exacerbation of greenhouse effects, this has seriously threatened natural ring for the survival of mankind
Border.CO2As main greenhouse gases, discharge amount accounts for about the 80% of mankind's activity emission greenhouse gas gross, China's conduct
CO2Big country is discharged, the research for making great efforts to carry out carbon capture technology is imperative.It is taken off after the burning absorbed based on MEA (monoethanolamine)
Carbon is widely regarded as relative maturity and the technology with large-scale application potentiality, the concern by numerous scholars.
However, the chemical absorption method decarbonizing process based on MEA needs to consume amount of heat, while releasing a large amount of low-grade
Waste heat.In general, decarbonizing process institute's calorific requirement is supplied by the steam extraction of steam turbine mesolow cylinder communicating pipe, it means that decarburization
Journey will reduce the output of system Effective power, cause higher efficiency to punish, and bring certain influence to the safety of low pressure (LP) cylinder.
In order to realize CO2Efficiency punishment is effectively reduced while emission reduction, integrates absorption heat pump and fume afterheat utilizes two kinds of energy conservations
Means optimize coal-fired decarburization power plant by the system integration, provide direction for the utilization of decarbonizing process waste heat.
Utility model content
The purpose of this utility model is to punish that this is asked to the huge efficiency of unit bring for MEA decarburization in the prior art
Topic proposes a kind of integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system.The system includes coal-fired hair
Electronic system, decarburization Waste Heat Reuse subsystem and fume afterheat utilize subsystem, it is characterised in that: No. 1 water-borne formula air preheat
2, No. 3 water-borne regenerative air heaters 3 of device 1,2 water-borne regenerative air heater, primary air preheater 4,5 air intake of boiler are successively
Series connection, 5 main-steam outlet of boiler are connected with 6 steam inlet of high pressure cylinder, each steam extraction outlet of high pressure cylinder 6 and 15 phase of high-pressure heater group
Even, 6 steam drain of high pressure cylinder is connected with cold section of entrance of 5 reheating of boiler, the outlet of 5 reheating hot arc of boiler and 7 steam inlet phase of intermediate pressure cylinder
Even, each steam extraction outlet of intermediate pressure cylinder 7 is connected with high-pressure heater group 15, oxygen-eliminating device 13, low-pressure heater group 12, and intermediate pressure cylinder 7 is vented
Mouth is connected with throttle valve 18,8 steam inlet of low pressure (LP) cylinder, and each extraction opening of low pressure (LP) cylinder 8 is connected with low-pressure heater group 12, low pressure (LP) cylinder 8
It is connect with generator 9；8 steam drain of low pressure (LP) cylinder and condenser 10, condensate pump 11, low-pressure heater group 12, oxygen-eliminating device 13, water supply
Pump 14, high-pressure heater group 15, the series connection of 5 feed-water intake of boiler, it is 16 water side of low-level (stack-gas) economizer and 15 water side of high-pressure heater group, low
Press 12 water side of heater group in parallel, the smoke evacuation of boiler 5 is divided into two-way, locates in advance with 4 fume side of primary air preheater, flue gas tail portion all the way
Reason 17 is connected, and another way is connected with low-level (stack-gas) economizer 16, flue gas tail portion pretreatment 17；Flue gas tail portion pretreatment 17, flue gas are cooling
Device 22, flue gas compressor 23,24 flue gas side entrance of absorption tower are sequentially connected in series, and 24 bottom of absorption tower is changed with rich solution pump 25, rich or poor liquid
Hot device 26, regenerator 27 are sequentially connected in series, 27 bottom of regenerator and lean pump 28, poor rich liquid heat exchanger 26, lean solution-water- to-water heat exchanger
29, lean solution cooler 30, absorption tower 24 are connected, 27 top of regenerator and 1#CO2Cooler 31, CO2Water- to-water heat exchanger 32,2#CO2
Cooler 33, CO2Separator 34 is connected, CO234 bottom of separator is connected with regenerator 27, CO2Separator 34 pushes up
Portion is connected with 36 entrance of multi-stage compression unit, 36 entrance of multi-stage compression unit and 1#CO2Water- to-water heat exchanger 35,2#CO2Water- to-water heat exchanger
37、3#CO2Water- to-water heat exchanger 38 is sequentially connected in series；The hydrophobic outlet of reboiler 19 is divided into three tunnels, is hydrophobic circulating pump 20 all the way and boil again
Device 19 is in parallel, and the second tunnel is connected with 21 evaporator of second-kind absorption-type heat pump and regenerator, condenser 10, and third road is second
Class absorption heat pump 21 is in parallel with reboiler 19.
The fume afterheat is lean solution-water- to-water heat exchanger 29, CO using subsystem2Water- to-water heat exchanger 32,1#CO2Water- to-water heat exchanger
35 water side outlet respectively with water-borne 2, No. 3 water-borne formula air preheats of regenerative air heater of No. 1 water-borne regenerative air heater 1,2
3 water side entrance of device is connected, water-borne 2, No. 3 water-borne regenerative air heaters of regenerative air heater of No. 1 water-borne regenerative air heater 1,2
3 water side outlet respectively with lean solution-water- to-water heat exchanger 29, CO2Water- to-water heat exchanger 32,1#CO235 entrance of water- to-water heat exchanger is connected；1#
CO2Water- to-water heat exchanger 35 is through primary air preheater 4 and boiler 5；16 water side entrance of low-level (stack-gas) economizer and condensate pump in bypass flue
11 outlets are connected, and 16 water side outlet of low-level (stack-gas) economizer is connected with 15 water side outlet of high-pressure heater group, low-level (stack-gas) economizer 16
It is connect by primary air preheater 4 and boiler 5 with flue gas tail portion pretreatment 17.
The hydrophobic outlet of reboiler 19 in the decarburization Waste Heat Reuse subsystem is divided into three tunnels, and the first via is through hydrophobic circulation
Pump 20 is connect with 19 entrance of reboiler；Second tunnel is the hydrophobic outlet of reboiler 19 through the second class of decarburization Waste Heat Reuse subsystem
21 evaporator of absorption heat pump and regenerator are connected to condenser 10；Third road is hydrophobic outlet and the decarburization waste heat of reboiler 19
It is connected using the absorber entrance of the second-kind absorption-type heat pump 21 of subsystem, the absorber outlet of second-kind absorption-type heat pump 21
It is connect respectively with the outlet of throttle valve 18, the outlet of hydrophobic circulating pump 20 and reboiler 19.
The regenerator and evaporator of the second-kind absorption-type heat pump 21 of the decarburization Waste Heat Reuse subsystem side that puts hot water enter
Mouth and 1#CO2Cooler 31,2#CO237 water side outlet of water- to-water heat exchanger is connected, the regenerator of second-kind absorption-type heat pump 21 and steaming
Hair device puts hot water side outlet and 1#CO2Cooler 31,2#CO237 water side entrance of water- to-water heat exchanger is connected；Second-kind absorption-type heat pump
21 absorbers and the outlet of reboiler 19 connect.
The beneficial effects of the utility model are: (1) utilizes decarbonizing process waste heat preheated air, part boiler higher temperatures are saved
Gas bypass heats water supply, reduces heat regenerative system extracted steam from turbine；(2) decarbonizing process waste heat is recycled by absorption heat pump,
It substitutes part decarburization and provides heat with vapour for reboiler；(3) by the hydrophobic recycling of reboiler, the steam extraction degree of superheat is made full use of,
To reduce decarburization steam extraction amount.
Detailed description of the invention
Fig. 1 is the flow diagram of integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system.
It is respectively numbered in figure are as follows: No. 1-1 water-borne regenerative air heater；No. 2-2 water-borne regenerative air heater；No. 3-3 water-borne formula
Air preheater；4- primary air preheater；5- boiler；6- high pressure cylinder；7- intermediate pressure cylinder；8- low pressure (LP) cylinder；9- generator；10- condensing
Device；11- condensate pump；12- low-pressure heater group；13- oxygen-eliminating device；14- feed pump；15- high-pressure heater group；16- low temperature saves
Coal device；The pretreatment of 17- flue gas tail portion；18- throttle valve；19- reboiler；The hydrophobic circulating pump of 20-；21- second-kind absorption-type heat pump；
22- gas cooler；23- flue gas compressor；The absorption tower 24-；25- rich solution pump；26- poor rich liquid heat exchanger；27- regenerator；28-
Lean pump；29- lean solution-water- to-water heat exchanger；30- lean solution cooler；31-1#CO2Cooler；32-CO2Water- to-water heat exchanger；33-2#CO2
Cooler；34-CO2Separator；35-1#CO2Water- to-water heat exchanger；36- multi-stage compression unit；37-2#CO2Water- to-water heat exchanger；38-
3#CO2Water- to-water heat exchanger.
Specific embodiment
The utility model proposes a kind of integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating systems.
The utility model is further explained with reference to the accompanying drawing.
As shown in Figure 1, the system includes that coal fired power generation subsystem, decarburization Waste Heat Reuse subsystem and fume afterheat utilize son
System, as shown in the figure, water-borne 2, No. 3 water-borne regenerative air heaters 3 of regenerative air heater of No. 1 water-borne regenerative air heater 1,2,
Primary air preheater 4,5 air intake of boiler are sequentially connected in series, and 5 main-steam outlet of boiler is connected with 6 steam inlet of high pressure cylinder, high pressure
Each steam extraction outlet of cylinder 6 is connected with high-pressure heater group 15, and 6 steam drain of high pressure cylinder is connected with cold section of entrance of 5 reheating of boiler, boiler 5
The outlet of reheating hot arc is connected with 7 steam inlet of intermediate pressure cylinder, each steam extraction outlet of intermediate pressure cylinder 7 and high-pressure heater group 15, oxygen-eliminating device 13,
Low-pressure heater group 12 is connected, and 7 exhaust outlet of intermediate pressure cylinder is connected with throttle valve 18,8 steam inlet of low pressure (LP) cylinder, each steam extraction of low pressure (LP) cylinder 8
Mouth is connected with low-pressure heater group 12, and low pressure (LP) cylinder 8 is connect with generator 9；8 steam drain of low pressure (LP) cylinder and condenser 10, condensate pump
11, low-pressure heater group 12, oxygen-eliminating device 13, feed pump 14, high-pressure heater group 15, the series connection of 5 feed-water intake of boiler, low temperature save coal
16 water side of device is in parallel with 15 water side of high-pressure heater group, 12 water side of low-pressure heater group, boiler 5 smoke evacuation is divided into two-way, all the way with
4 fume side of primary air preheater, flue gas tail portion pretreatment 17 are connected, and another way and low-level (stack-gas) economizer 16, flue gas tail portion pre-process
17 are connected；Flue gas tail portion pretreatment 17, gas cooler 22, flue gas compressor 23,24 flue gas side entrance of absorption tower are sequentially connected in series,
24 bottom of absorption tower is sequentially connected in series with rich solution pump 25, poor rich liquid heat exchanger 26, regenerator 27,27 bottom of regenerator and lean pump
28, poor rich liquid heat exchanger 26, lean solution-water- to-water heat exchanger 29, lean solution cooler 30, absorption tower 24 are connected, 27 top of regenerator and 1#
CO2Cooler 31, CO2Water- to-water heat exchanger 32,2#CO2Cooler 33, CO2Separator 34 is connected, CO234 bottom of separator
It is connected with regenerator 27, CO234 top of separator is connected with 36 entrance of multi-stage compression unit, 36 entrance of multi-stage compression unit
With 1#CO2Water- to-water heat exchanger 35,2#CO2Water- to-water heat exchanger 37,3#CO2Water- to-water heat exchanger 38 is sequentially connected in series；The hydrophobic outlet of reboiler 19
It is divided into three tunnels, is that hydrophobic circulating pump 20 is in parallel with reboiler 19 all the way, the second tunnel is and 21 evaporator of second-kind absorption-type heat pump
It connects with regenerator, condenser 10, third road is that second-kind absorption-type heat pump 21 is in parallel with reboiler 19.
The fume afterheat is lean solution-water- to-water heat exchanger 29, CO using subsystem2Water- to-water heat exchanger 32,1#CO2Water- to-water heat exchanger
35 water side outlet respectively with water-borne 2, No. 3 water-borne formula air preheats of regenerative air heater of No. 1 water-borne regenerative air heater 1,2
The water side entrance of device 3 is connected, and progressive solution enters stove air, 1, No. 2 water-borne regenerative air heater 2 of No. 1 water-borne regenerative air heater,
The water side outlet of No. 3 water-borne regenerative air heaters 3 respectively with lean solution-water- to-water heat exchanger 29, CO2Water- to-water heat exchanger 32,1#CO2Water changes
The entrance of hot device 35 is connected；Enter stove air successively after the heat absorption of three-level preheater, through primary air preheater 4 after progressive solution
Into boiler 5；The water side entrance of low-level (stack-gas) economizer 16 is connected with the outlet of condensate pump 11 in bypass flue, low-level (stack-gas) economizer 16
Water side outlet is connected with 15 water side outlet of high-pressure heater group, and the smoke evacuation of low-level (stack-gas) economizer 16 converges with the smoke evacuation of primary air preheater 4
Enter flue gas tail portion pretreatment 17 after conjunction, further utilizes progress desulphurization denitration dust removal process in fume afterheat.
The hydrophobic of the outlet of reboiler 19 is divided into three tunnels, and the first via is hydrophobic through circulating pump in decarburization Waste Heat Reuse subsystem
20 are recycled to the entrance of reboiler 19；The hydrophobic second-kind absorption-type heat pump for initially entering decarburization Waste Heat Reuse subsystem in second tunnel
21 evaporators and regenerator heat release are then returned to the hot well of condenser 10；Third road is hydrophobic to enter decarburization Waste Heat Reuse subsystem
21 absorber of second-kind absorption-type heat pump of system absorbs heat, and forms saturated vapor, then exported with throttle valve 18 overheat steam extraction, dredge
Enter 19 heat release of reboiler after the hydrophobic mixing that water-circulating pump 20 exports.
The regenerator and evaporator of the second-kind absorption-type heat pump 21 of the decarburization Waste Heat Reuse subsystem side that puts hot water enter
Mouth and 1#CO2Cooler 31,2#CO237 water side outlet of water- to-water heat exchanger is connected, the regenerator of second-kind absorption-type heat pump 21 and steaming
Hair device puts hot water side outlet and 1#CO2Cooler 31,2#CO237 water side entrance of water- to-water heat exchanger is connected；Second-kind absorption-type heat pump
The high temperature heat that 21 absorbers generate is hydrophobic for evaporating 19 exit portion of reboiler, and forms saturated vapor.
Embodiment
A kind of specific implementation of integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system
Are as follows:
Air point two-stage preheats, first in water-borne 2, No. 3 water of regenerative air heater of No. 1 water-borne regenerative air heater 1,2
Using working-medium water in lean solution-water- to-water heat exchanger 29, CO in matchmaker's regenerative air heater 32Water- to-water heat exchanger 32,1#CO2In water- to-water heat exchanger 35
The waste heat for absorbing decarbonizing process enters stove air, and the stove air that enters of heating enters back into primary air preheater 4 using flue gas again
Heating finally enters boiler 5 with coal, after water supply is by extracted steam from turbine and partial fume heating, becomes main steaming in the heat absorption of boiler 5
Vapour, and 8 expansion work of high pressure cylinder 6, intermediate pressure cylinder 7 and low pressure (LP) cylinder is sequentially entered, driven generator 9 generates electricity；Wherein 7 steam discharge of intermediate pressure cylinder
It is divided into three tunnels, is connected all the way with throttle valve 18 and reboiler 19, the second tunnel is connected with low-pressure heater group 12, third road and low pressure
8 entrance of cylinder is connected；The smoke evacuation of boiler 5 is divided into two-way, and all the way in 16 heating part water supply of low-level (stack-gas) economizer, another way is pre- in primary air
Hot device 4 heats air, and final two-way flue gas is mixed and fed into flue gas tail portion pretreatment 17 and carries out desulphurization denitration dust removal process, with
Cooling by gas cooler 22, flue gas compressor 23 is entered after being pressurized by 24 bottom of absorption tower, is absorbed with flowing into from top to bottom
The MEA aqueous solution counter current contacting of tower 24 is reacted, and CO is removed2Flue gas afterwards reacts the rich solution of generation by being discharged at the top of absorption tower 24
It is then flowed out from 24 bottom of absorption tower, regenerator 27 is entered after rich solution pump 25, poor rich liquid heat exchanger 26；In regenerator 27, after desorption
Lean solution by 27 bottom of regenerator flow out, through lean pump 28, poor rich liquid heat exchanger 26, lean solution-water- to-water heat exchanger 29, lean solution cooler
30, which return to absorption tower 24, is recycled；The CO parsed2Then through 27 top 1#CO of regenerator2Cooler 31, CO2Water- to-water heat exchanger
32、2#CO2Enter CO after cooler 332Separator 34 purifies, CO2The condensate return of 34 bottom of separator to regeneration
In tower 27, the high-purity CO of top outflow2Pressurization cooling, and every grade of multi-stage compression unit 36 are carried out into multi-stage compression unit 36
CO after compression2Working medium initially enters 1#CO2Water- to-water heat exchanger 35 heats air, enters back into 2#CO237 heat release of water- to-water heat exchanger is to the
The evaporator and regenerator of two class absorption heat pumps 21, then in 3#CO2Water- to-water heat exchanger 38 carries out down after being cooled to suitable temperature
One stage of compression；Reboiler 19 export it is hydrophobic be divided into three tunnels, heat release is to squeezing into condenser 10 after second-kind absorption-type heat pump 21 all the way,
Second tunnel is recycled to 19 entrance of reboiler through hydrophobic circulating pump 20, and third road enters second-kind absorption-type heat pump as heat-absorbing medium
21 absorbers absorb high temperature heat, are formed after saturated vapor and export superheated steam after hydrophobic, throttle valve 18 with hydrophobic circulating pump 20
Enter reboiler 19 together and carries out heat release；So circulation, thus makes full use of the steam extraction degree of superheat, to reduce decarburization steam extraction
Amount.
Claims (4)
1. a kind of integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system, which includes coal-fired hair
Electronic system, decarburization Waste Heat Reuse subsystem and fume afterheat utilize subsystem, it is characterised in that: No. 1 water-borne formula air preheat
Device (1), No. 2 water-borne regenerative air heaters (2), No. 3 water-borne regenerative air heaters (3), primary air preheater (4), boiler (5) are empty
Gas entrance is sequentially connected in series, and boiler (5) main-steam outlet is connected with high pressure cylinder (6) steam inlet, each steam extraction of high pressure cylinder (6) outlet with
High-pressure heater group (15) is connected, and high pressure cylinder (6) steam drain is connected with cold section of entrance of boiler (5) reheating, boiler (5) reheating hot arc
Outlet is connected with intermediate pressure cylinder (7) steam inlet, each steam extraction outlet of intermediate pressure cylinder (7) and high-pressure heater group (15), oxygen-eliminating device (13),
Low-pressure heater group (12) is connected, and intermediate pressure cylinder (7) exhaust outlet is connected with throttle valve (18), low pressure (LP) cylinder (8) steam inlet, low pressure (LP) cylinder
(8) each extraction opening is connected with low-pressure heater group (12), and low pressure (LP) cylinder (8) is connect with generator (9)；Low pressure (LP) cylinder (8) steam drain with
Condenser (10), condensate pump (11), low-pressure heater group (12), oxygen-eliminating device (13), feed pump (14), high-pressure heater group
(15), boiler (5) feed-water intake is connected, low-level (stack-gas) economizer (16) water side and high-pressure heater group (15) water side, low-pressure heater
Group (12) water side is in parallel, and boiler (5) smoke evacuation is divided into two-way, pre-processes all the way with primary air preheater (4) fume side, flue gas tail portion
(17) it is connected, another way is connected with low-level (stack-gas) economizer (16), flue gas tail portion pretreatment (17)；Flue gas tail portion pre-processes (17), cigarette
Gas Cooler (22), flue gas compressor (23), absorption tower (24) flue gas side entrance are sequentially connected in series, absorption tower (24) bottom and rich solution
Pump (25), poor rich liquid heat exchanger (26), regenerator (27) are sequentially connected in series, regenerator (27) bottom and lean pump (28), rich or poor liquid
Heat exchanger (26), lean solution-water- to-water heat exchanger (29), lean solution cooler (30), absorption tower (24) series connection, regenerator (27) top and 1#
CO2Cooler (31), CO2Water- to-water heat exchanger (32), 2#CO2Cooler (33), CO2Separator (34) is connected, CO2Water separation
Device (34) bottom is connected with regenerator (27), CO2It is connected at the top of separator (34) with multi-stage compression unit (36) entrance, it is more
Grade compression unit (36) entrance and 1#CO2Water- to-water heat exchanger (35), 2#CO2Water- to-water heat exchanger (37), 3#CO2Water- to-water heat exchanger (38) according to
Secondary series connection；The hydrophobic outlet of reboiler (19) is divided into three tunnels, is that hydrophobic circulating pump (20) is in parallel with reboiler (19) all the way, the second tunnel
It is to connect with second-kind absorption-type heat pump (21) evaporator and regenerator, condenser (10), third road is the second kind absorption type heat
It is in parallel with reboiler (19) to pump (21).
2. integrated residual heat from boiler fume according to claim 1, decarburization waste heat and absorption heat pump coal generating system,
Be characterized in that: the fume afterheat utilizes lean solution-water- to-water heat exchanger (29), the CO of subsystem2Water- to-water heat exchanger (32), 1#CO2Water changes
The water side outlet of hot device (35) respectively with No. 1 water-borne regenerative air heater (1), No. 2 water-borne regenerative air heaters (2), No. 3 it is water-borne
The water side entrance of regenerative air heater (3) is connected, No. 1 water-borne regenerative air heater (1), No. 2 water-borne regenerative air heaters (2), 3
The water side outlet of number water-borne regenerative air heater (3) respectively with lean solution-water- to-water heat exchanger (29), CO2Water- to-water heat exchanger (32), 1#CO2-
Water- to-water heat exchanger (35) entrance is connected；1#CO2Water- to-water heat exchanger (35) is connect by primary air preheater (4) with boiler (5)；Bypass
Low-level (stack-gas) economizer (16) water side entrance and condensate pump (11) outlet are connected in flue, low-level (stack-gas) economizer (16) water side outlet with
High-pressure heater group (15) water side outlet is connected, and low-level (stack-gas) economizer (16) is located through primary air preheater (4) with flue gas tail portion in advance
It manages (17).
3. a kind of integrated residual heat from boiler fume according to claim 1, decarburization waste heat and absorption heat pump coal fired power generation system
System, it is characterised in that: the hydrophobic outlet of the reboiler (19) in the decarburization Waste Heat Reuse subsystem is divided into three tunnels, first via warp
Hydrophobic circulating pump (20) connect with reboiler (19) entrance；Second tunnel is the hydrophobic outlet of reboiler (19) through decarburization Waste Heat Reuse
Second-kind absorption-type heat pump (21) evaporator and regenerator of subsystem are connected to condenser (10)；Third road is reboiler (19)
Hydrophobic outlet connect with the absorber entrance of the second-kind absorption-type heat pump (21) of decarburization Waste Heat Reuse subsystem, the second class inhale
The absorber outlet of receipts formula heat pump (21) is exported with throttle valve (18) respectively, hydrophobic circulating pump (20) exports and reboiler (19)
Connection.
4. integrated residual heat from boiler fume according to claim 1, decarburization waste heat and absorption heat pump coal generating system,
Be characterized in that: the regenerator and evaporator of the second-kind absorption-type heat pump (21) of the decarburization Waste Heat Reuse subsystem put hot water side
Entrance and 1#CO2Cooler (31), 2#CO2Water- to-water heat exchanger (37) water side outlet is connected, and second-kind absorption-type heat pump (21) is again
Raw device and evaporator put hot water side outlet and 1#CO2Cooler (31), 2#CO2Water- to-water heat exchanger (37) water side entrance is connected；Second
Class absorption heat pump (21) absorber and reboiler (19) outlet connect.
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| CN201821137973.XU CN209101252U (en) | 2018-07-18 | 2018-07-18 | Integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system |
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| CN201821137973.XU CN209101252U (en) | 2018-07-18 | 2018-07-18 | Integrated residual heat from boiler fume, decarburization waste heat and absorption heat pump coal generating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114768488A (en) * | 2022-05-17 | 2022-07-22 | 山东大学 | Coal-fired unit flue gas carbon dioxide entrapment system |
| CN115111806A (en) * | 2022-06-21 | 2022-09-27 | 西安热工研究院有限公司 | Combined heat and power system and method based on energy gradient utilization |
| CN115371450A (en) * | 2022-08-24 | 2022-11-22 | 中国电建集团江西省电力设计院有限公司 | Multi-heat-source-driven cement kiln carbon capture and organic Rankine cycle deep waste heat utilization system |
| CN115463516A (en) * | 2022-07-22 | 2022-12-13 | 国家能源集团新能源技术研究院有限公司 | System and method for using flue gas waste heat for carbon capture regeneration |
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| CN114768488A (en) * | 2022-05-17 | 2022-07-22 | 山东大学 | Coal-fired unit flue gas carbon dioxide entrapment system |
| CN114768488B (en) * | 2022-05-17 | 2024-04-26 | 山东大学 | Coal-fired unit flue gas carbon dioxide entrapment system |
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| CN115111806B (en) * | 2022-06-21 | 2023-11-03 | 西安热工研究院有限公司 | Combined heat and power system and method based on energy cascade utilization |
| CN115463516A (en) * | 2022-07-22 | 2022-12-13 | 国家能源集团新能源技术研究院有限公司 | System and method for using flue gas waste heat for carbon capture regeneration |
| CN115371450A (en) * | 2022-08-24 | 2022-11-22 | 中国电建集团江西省电力设计院有限公司 | Multi-heat-source-driven cement kiln carbon capture and organic Rankine cycle deep waste heat utilization system |
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