CN206036991U - No radiant heating surface's super supercritical carbon dioxide boiler - Google Patents
No radiant heating surface's super supercritical carbon dioxide boiler Download PDFInfo
- Publication number
- CN206036991U CN206036991U CN201621059174.6U CN201621059174U CN206036991U CN 206036991 U CN206036991 U CN 206036991U CN 201621059174 U CN201621059174 U CN 201621059174U CN 206036991 U CN206036991 U CN 206036991U
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- flue
- supercritical carbon
- low
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a no radiant heating surface's super supercritical carbon dioxide boiler for among the super supercritical carbon dioxide brayton cycle power generation system, including furnace and flue, furnace heat insulating wall has been arranged in the furnace, flue package wall has been arranged in the flue, the flue is fixed in furnace's top, furnace's side is provided with the combustor, direction along the flue gas circulation in the flue has set gradually low temperature superheater, low -temperature reheater and mid -board, wherein, one side of mid -board has set gradually high temperature over heater and medium temperature over heater along the direction that the flue gas circulated, the opposite side of mid -board has set gradually high -temperature reheater and medium temperature re -heater along the direction that the flue gas circulated, this arrangement form can the super temperature problem of the super supercritical carbon dioxide boiler of effectual solution.
Description
Technical field
This utility model belongs to the efficient field of thermal power of supercritical carbon dioxide, and in particular to a kind of radiationless heating surface
Supercritical carbon dioxide boiler.
Background technology
Development and environmental conservation of the height of generating set efficiency to national economy suffer from material impact, China's energy storage
Standby composition feature determines that thermal power generation remains the main force of China's power industry in coming few decades, therefore, improve fire
The efficiency of power generator group is particularly important in China.At present, supercritical carbon dioxide Brayton Cycle system is generally recognized
To be the new ideas advanced power systems of great potential, this has that energy density is big, passes mainly due to supercritical carbon dioxide
The features such as thermal efficiency is high, supercritical carbon dioxide Brayton cycle efficient power generation system can be reached in 620 DEG C of temperature ranges
The efficiency that 700 DEG C of conventional steam Rankine cycle, can avoid the technical bottleneck and cost restriction of novel high-temperature alloy material, and set
The standby steam unit for being smaller in size than same parameter, economy are very good.Supercritical carbon dioxide Brayton Cycle system not only can
For photo-thermal, nuclear energy, thermal power generation direction can also be used in well, has good development prospect in China.
Compared with steam Rankine cycle, a big technical characterstic of supercritical carbon dioxide Brayton cycle is exactly that backheat amount is non-
Chang great.With supercritical carbon dioxide Brayton cycle electricity generation system of the 600 DEG C of more advanced at present grades containing shunting recompression
As a example by, the backheat amount of whole blood circulation is about 2-3 times of boiler heat absorption total amount.High backheat amount improves the average heat absorption of circulation
Temperature, and then improve the efficiency of circulation.
But one of technological challenge that high backheat amount is brought is that boiler inlet temperature is very high, and the equal work of all working medium in boiler
Make in region of the temperature far above large specific heat region, exchange capability of heat is poor, the easy overtemperature of boiler heating surface.Super with 600 DEG C of grades faces
As a example by boundary's carbon dioxide boiler：If carbon dioxide boiler is still using the structural shape of conventional supercritical fluid steam boiler, water-cooling wall
About 500-530 DEG C, 150 DEG C higher than the steam boiler of same parameter or so of inlet temperature；Under the parameter, carbon dioxide boiler water-cooled
In wall carbon dioxide in temperature far above large specific heat region region, and in steam boiler water-cooling wall water then be in large specific heat region and
Its near zone, the latter's working medium side convection transfer rate are about 3-5 times of the former working medium side convection transfer rate, and difference is very
Greatly.Supercritical carbon dioxide boiler inlet Temperature of Working is high, and in water-cooling wall, working medium exchange capability of heat is poor, and this gives supercritical carbon dioxide
The design of boiler brings very big challenge, while also implying that the layout pattern of the supercritical steam boiler of traditional structure is uncomfortable
For supercritical carbon dioxide boiler.
But Jing investigations understand, are related to the open achievement of supercritical carbon dioxide boiler and its layout pattern at present both at home and abroad
With patent seldom, even more rarely has the data with regard to solving supercritical carbon dioxide boiler tube wall overtemperatute.
Utility model content
The purpose of this utility model is the shortcoming for overcoming above-mentioned prior art, there is provided a kind of radiationless heating surface it is super
Critical carbon dioxide boiler, the arrangement can effectively solve the problems, such as supercritical carbon dioxide boiler overheat.
To reach above-mentioned purpose, the supercritical carbon dioxide boiler of radiationless heating surface described in the utility model is used for
In supercritical carbon dioxide Brayton cycle electricity generation system, including burner hearth and flue；
Burner hearth insulated wall is disposed with burner hearth, flue bag wall in flue, is disposed with, flue is fixed on the top of burner hearth, burner hearth
Side be provided with burner, in flue along the direction of flue gas circulation be disposed with low temperature superheater, low-temperature reheater and in
Partition wall, wherein, the side of mid-board is disposed with high temperature superheater and medium temperature overheater, mid-board along the direction that flue gas circulates
Opposite side be disposed with high temperature reheater and middle temperature reheater along the direction that flue gas circulates；
The outlet of supercritical carbon dioxide Brayton cycle electricity generation system high temperature regenerator cold side is Jing after low temperature superheater
It is divided into two-way, wherein, it is connected with the entrance of flue bag wall all the way, another road is connected with the entrance of mid-board, flue bag wall
Outlet and mid-board outlet after pipeline pipe successively Jing after medium temperature overheater and high temperature superheater with supercritical dioxy
The entrance for changing steam turbine high-pressure cylinder in carbon Bretton cycle generating system is connected；
Jing low-temperature reheaters, middle temperature be again successively for the reheating sender property outlet of supercritical carbon dioxide Brayton cycle electricity generation system
Hot device and high temperature reheater are connected with the entrance of turbine low pressure cylinder in supercritical carbon dioxide Brayton cycle electricity generation system.
Also include the side that the shunting low-level (stack-gas) economizer in flue, mid-board and shunting low-level (stack-gas) economizer circulate along flue gas
To being sequentially arranged, in supercritical carbon dioxide Brayton cycle electricity generation system, the cold side outlet port of cryogenic regenerator is divided into two-way, its
In be connected with the entrance of shunting low-level (stack-gas) economizer all the way, the outlet of another road and shunting low-level (stack-gas) economizer is after pipeline pipe
It is connected with the cold side input port of supercritical carbon dioxide Brayton cycle electricity generation system high temperature regenerator.
SCR denitration device is additionally provided with flue, wherein, shunt what low-level (stack-gas) economizer and SCR denitration device circulated along flue gas
Direction is sequentially arranged.
Air preheater is additionally provided with flue, the outlet of air preheater is connected with the air intake of burner hearth.
SCR denitration device is sequentially arranged along the direction that flue gas circulates with air preheater.
The flow of the carbon dioxide working medium entered in shunting low-level (stack-gas) economizer accounts for supercritical carbon dioxide Brayton cycle
The 8% of the carbon dioxide working medium flow of cryogenic regenerator cold side output in electricity generation system.
This utility model has the advantages that：
The supercritical carbon dioxide boiler of radiationless heating surface described in the utility model replaces passing by burner hearth insulated wall
The Boiler radiation heating surface of system, makes all heats that stove chamber inner combustion is produced as flue gas is entered in flue, and by flue
Low temperature superheater, low-temperature reheater, mid-board, the heating surface of high temperature superheater and high temperature reheater absorb, so as to have
The high supercritical carbon dioxide pot brought with carbon dioxide water-cooling wall exchange capability of heat deficiency of solution boiler export Temperature of Working of effect
A difficult problem for stove water-cooling wall overtemperature.Low temperature superheater, low-temperature reheater and mid-board are sequentially arranged along the direction that flue gas circulates simultaneously,
High temperature superheater and medium temperature overheater are sequentially arranged along the direction that flue gas circulates, and high temperature reheater and middle temperature reheater are along flue gas stream
Logical direction is sequentially arranged, and designs relatively reasonable, can realize the cascade utilization of boiler smoke heat, and this utility model can be by
Exhaust gas temperature is down to less than 100-120 DEG C, and compared with traditional layout of boiler form, this utility model both can guarantee that super facing
Boundary's carbon dioxide boiler can reach the thermal efficiency of same parameter supercritical steam boiler, efficiently solve boiler inlet working medium temperature again
A difficult problem for the high carbon dioxide boiler water wall overtemperature brought with carbon dioxide water-cooling wall exchange capability of heat deficiency of degree.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 be burner hearth, 2 be flue, 3 be burner hearth insulated wall, 4 be burner, 5 be low temperature superheater, 6 be low temperature again
Hot device, 7 be mid-board, 8 be high temperature superheater, 9 be high temperature reheater, 10 be medium temperature overheater, 11 be middle temperature reheater, 12 be
Shunting low-level (stack-gas) economizer, 13 be SCR denitration device, 14 be air preheater, 15 be flue bag wall.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail：
With reference to Fig. 1, the supercritical carbon dioxide boiler of radiationless heating surface described in the utility model, for supercritical two
In carbonoxide Brayton cycle electricity generation system, including burner hearth 1 and flue 2；Burner hearth insulated wall 3 is disposed with burner hearth 1, in flue 2
Flue bag wall 15 is disposed with, flue 2 is fixed on the top of burner hearth 1, and the side of burner hearth 1 is provided with burner 4, along cigarette in flue 2
The logical direction of air-flow is disposed with low temperature superheater 5, low-temperature reheater 6 and mid-board 7, wherein, the side of mid-board 7 is along cigarette
The logical direction of air-flow is disposed with high temperature superheater 8 and medium temperature overheater 10, the side that the opposite side of mid-board 7 circulates along flue gas
To being disposed with high temperature reheater 9 and middle temperature reheater 11；Supercritical carbon dioxide Brayton cycle electricity generation system high temperature
The outlet of regenerator cold side is divided into two-way Jing after low temperature superheater 5, wherein, it is connected with the entrance of flue bag wall 15 all the way, separately
It is connected with the entrance of mid-board 7 all the way, the outlet of flue bag wall 15 and the outlet of mid-board 7 Jing successively after pipeline pipe
With steam turbine high-pressure cylinder in supercritical carbon dioxide Brayton cycle electricity generation system after medium temperature overheater 10 and high temperature superheater 8
Entrance is connected；The reheating sender property outlet of supercritical carbon dioxide Brayton cycle electricity generation system successively Jing low-temperature reheaters 6, in
The entrance of turbine low pressure cylinder in warm reheater 11 and high temperature reheater 9 and supercritical carbon dioxide Brayton cycle electricity generation system
It is connected.
This utility model also includes the shunting low-level (stack-gas) economizer 12 in flue 2, mid-board 7 and shunting low-level (stack-gas) economizer
12 are sequentially arranged along the direction of flue gas circulation, the cold side of cryogenic regenerator in supercritical carbon dioxide Brayton cycle electricity generation system
Outlet be divided into two-way, wherein all the way with shunting low-level (stack-gas) economizer 12 entrance be connected, another road with shunting low-level (stack-gas) economizer 12
Outlet through pipeline Guan Houyu supercritical carbon dioxide Brayton cycle electricity generation system high temperature regenerators cold side input port
It is connected；SCR denitration device 13 is additionally provided with flue 2, wherein, shunting low-level (stack-gas) economizer 12 and SCR denitration device 13 are along flue gas
The direction of circulation is sequentially arranged；Air preheater 14, the outlet of air preheater 14 and the air of burner hearth 1 are additionally provided with flue 2
Entrance is connected；SCR denitration device 13 is sequentially arranged along the direction that flue gas circulates with air preheater 14；Enter into shunting low temperature
The flow of the carbon dioxide working medium in economizer 12 accounts for cryogenic regenerator in supercritical carbon dioxide Brayton cycle electricity generation system
The 8% of the carbon dioxide working medium flow of cold side output.
Flue gas flow is：Fuel sprays into burner hearth 1 by burner 4 and is burnt, due to being disposed with burner hearth insulated wall in burner hearth 1
3, the heat that flue gas and burning are produced enters flue 2, and in flue 2, flue gas sequentially passes through low temperature superheater 5 and low-temperature reheater
6, subsequently enter in twin flue, wherein, flue gas sequentially passes through high temperature superheater 8 in front flue and medium temperature overheater 10 is lowered the temperature,
Flue gas sequentially passes through high temperature reheater 9 and middle temperature reheater 11 is lowered the temperature in the rear pass, and the flue gas after cooling is exported in twin flue
Converge, then flow sequentially through shunting low-level (stack-gas) economizer 12, SCR denitration device 13 and air preheater 14, be finally then exhausted from flue 2
Into follow-up environmental protection facility.
The flow process of the main working medium in boiler is：Supercritical carbon dioxide Brayton cycle electricity generation system high temperature regenerator is cold
The working medium of side output is divided into two-way after absorbing heat in low temperature superheater 5, wherein entering into flue bag wall 15 all the way, another road enters
Mid-board 7, is heated to design parameter in sequentially entering medium temperature overheater 10 and high temperature superheater 8, is then re-fed into after confluxing
Do work in steam turbine high-pressure cylinder；
The flow process of the hot working fluid again in boiler is：Hot working fluid sequentially enters low-temperature reheater 6, middle temperature reheater 11 and height again
Design parameter is heated in warm reheater 9, turbine low pressure cylinder acting is finally delivered to.
Particularly, the flow process of the pre- hot working fluid of shunting in boiler is：Supercritical carbon dioxide Brayton cycle electricity generation system
The outlet of middle cryogenic regenerator cold side is divided into two-way, wherein enter into heating in shunting low-level (stack-gas) economizer 12 all the way, then with it is another
Road is entered into after confluxing in the high temperature regenerator cold side of supercritical carbon dioxide Brayton cycle electricity generation system, wherein, enter and divide
The working medium flow of stream low-level (stack-gas) economizer 12 is the 8% of total working medium flow of cryogenic regenerator cold side output.
Claims (6)
1. a kind of supercritical carbon dioxide boiler of radiationless heating surface, it is characterised in that for supercritical carbon dioxide mine-laying
Pause in cycle generating system, including burner hearth (1) and flue (2)；
It is disposed with burner hearth (1) in burner hearth insulated wall (3), flue (2) and is disposed with flue bag wall (15), flue (2) is fixed on stove
The top of thorax (1), the side of burner hearth (1) are provided with burner (4), flue (2) and are disposed with along the direction of flue gas circulation
Low temperature superheater (5), low-temperature reheater (6) and mid-board (7), wherein, the direction that the side of mid-board (7) is circulated along flue gas according to
Secondary to be provided with high temperature superheater (8) and medium temperature overheater (10), the opposite side of mid-board (7) is set successively along the direction that flue gas circulates
It is equipped with high temperature reheater (9) and middle temperature reheater (11)；
The outlet of supercritical carbon dioxide Brayton cycle electricity generation system high temperature regenerator cold side divides Jing after low temperature superheater (5)
For two-way, wherein, it is connected with the entrance of flue bag wall (15) all the way, another road is connected with the entrance of mid-board (7), flue
The outlet of bag wall (15) and the outlet of mid-board (7) Jing medium temperature overheaters (10) and high temperature superheater successively after pipeline pipe
(8) it is connected with the entrance of steam turbine high-pressure cylinder in supercritical carbon dioxide Brayton cycle electricity generation system afterwards；
Jing low-temperature reheaters (6), middle temperature be again successively for the reheating sender property outlet of supercritical carbon dioxide Brayton cycle electricity generation system
The entrance of turbine low pressure cylinder in hot device (11) and high temperature reheater (9) and supercritical carbon dioxide Brayton cycle electricity generation system
It is connected.
2. the supercritical carbon dioxide boiler of radiationless heating surface according to claim 1, it is characterised in that also including setting
The direction that shunting low-level (stack-gas) economizer (12) in flue (2), mid-board (7) and shunting low-level (stack-gas) economizer (12) are circulated along flue gas
It is sequentially arranged, in supercritical carbon dioxide Brayton cycle electricity generation system, the cold side outlet port of cryogenic regenerator is divided into two-way, wherein
It is connected with the entrance of shunting low-level (stack-gas) economizer (12) all the way, the outlet of another road and shunting low-level (stack-gas) economizer (12) is through pipeline
And the cold side input port of Guan Houyu supercritical carbon dioxide Brayton cycle electricity generation system high temperature regenerators is connected.
3. the supercritical carbon dioxide boiler of radiationless heating surface according to claim 1, it is characterised in that flue (2)
SCR denitration device (13) is additionally provided with inside, wherein, shunt low-level (stack-gas) economizer (12) and SCR denitration device (13) circulates along flue gas
Direction is sequentially arranged.
4. the supercritical carbon dioxide boiler of radiationless heating surface according to claim 1, it is characterised in that flue (2)
Air preheater (14) is additionally provided with inside, the outlet of air preheater (14) is connected with the air intake of burner hearth (1).
5. the supercritical carbon dioxide boiler of radiationless heating surface according to claim 4, it is characterised in that SCR denitration
Device (13) is sequentially arranged along the direction that flue gas circulates with air preheater (14).
6. the supercritical carbon dioxide boiler of radiationless heating surface according to claim 3, it is characterised in that enter into point
The flow of the carbon dioxide working medium in stream low-level (stack-gas) economizer (12) accounts for low in supercritical carbon dioxide Brayton cycle electricity generation system
The 8% of the carbon dioxide working medium flow of warm regenerator cold side output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621059174.6U CN206036991U (en) | 2016-09-14 | 2016-09-14 | No radiant heating surface's super supercritical carbon dioxide boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621059174.6U CN206036991U (en) | 2016-09-14 | 2016-09-14 | No radiant heating surface's super supercritical carbon dioxide boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206036991U true CN206036991U (en) | 2017-03-22 |
Family
ID=58295801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621059174.6U Active CN206036991U (en) | 2016-09-14 | 2016-09-14 | No radiant heating surface's super supercritical carbon dioxide boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206036991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827331A (en) * | 2019-03-28 | 2019-05-31 | 哈尔滨锅炉厂有限责任公司 | A kind of supercritical carbon dioxide working medium compact heating apparatus |
-
2016
- 2016-09-14 CN CN201621059174.6U patent/CN206036991U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827331A (en) * | 2019-03-28 | 2019-05-31 | 哈尔滨锅炉厂有限责任公司 | A kind of supercritical carbon dioxide working medium compact heating apparatus |
| CN109827331B (en) * | 2019-03-28 | 2023-12-15 | 哈尔滨锅炉厂有限责任公司 | Compact heating device for supercritical carbon dioxide working medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206036988U (en) | Take gas recirculation's overcritical CO2 boiler plant | |
| CN106195983B (en) | Coal-fired supercritical carbon dioxide Brayton cycle electricity generation system | |
| CN104728823B (en) | A kind of Novel supercritical carbon dioxide coal-burning boiler | |
| CN203431914U (en) | Flue gas system using air pre-heater of quartered-sector structure to reduce exhaust gas temperature of secondary reheating boiler | |
| CN203431902U (en) | Smoke system reducing exhaust smoke temperature of secondary reheating boiler | |
| CN109555569A (en) | Supercritical carbon dioxide recycles cold end waste heat recovery generating system and operation method | |
| CN108071430B (en) | The workflow of supercritical CO 2 Brayton cycle coal generating system working medium and flue gas | |
| CN205897088U (en) | Super supercritical carbon dioxide brayton cycle coal -fired generating unit | |
| CN206036990U (en) | Coal -based couple of carbon dioxide working medium combined cycle power generating system | |
| CN106402831B (en) | One kind being used for supercritical CO2The double-flue boiler of Brayton cycle electricity generation system | |
| CN106247306B (en) | A kind of supercritical carbon dioxide boiler heating surface arrangement preventing overtemperature of tube wall | |
| CN109944652B (en) | Supercritical carbon dioxide circulating flue gas waste heat recovery coal-fired power generation system and operation method | |
| CN109989794B (en) | Supercritical carbon dioxide coal-fired power generation system integrating waste heat recovery and operation method | |
| CN206016879U (en) | Coal base carbon dioxide and water association circulating power generation system | |
| CN106285805B (en) | A kind of coal base supercritical carbon dioxide Brayton cycle electricity generation system of intermediate preheating | |
| CN108678822A (en) | A kind of Novel supercritical CO suitable for coal-fired power generation field2Combined cycle system | |
| CN107120642A (en) | A kind of supercritical carbon dioxide CFBB heating system and heating means | |
| CN106090865B (en) | A kind of supercritical carbon dioxide Boiler radiation heated surface arrangement method | |
| CN108613170A (en) | A kind of supercritical carbon dioxide coal generating system and operation method | |
| CN205782806U (en) | A kind of New type coal base supercritical carbon dioxide boiler plant | |
| CN206036991U (en) | No radiant heating surface's super supercritical carbon dioxide boiler | |
| CN209430252U (en) | A kind of supercritical carbon dioxide electricity generation system of turbine high position arrangement | |
| CN106352317B (en) | Supercritical carbon dioxide Bretton and steam Rankine combined cycle thermal power generation system | |
| CN107906498A (en) | Supercritical carbon dioxide circulating fluidized bed combustion coal boiler and its electricity generation system of driving | |
| CN105910090A (en) | System used for lowering exhaust smoke temperature in carbon dioxide Brayton cycle power generation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |