CN108954374A - Combined Cycle Heat Recovery Boiler afterburning wind system - Google Patents
Combined Cycle Heat Recovery Boiler afterburning wind system Download PDFInfo
- Publication number
- CN108954374A CN108954374A CN201810933703.8A CN201810933703A CN108954374A CN 108954374 A CN108954374 A CN 108954374A CN 201810933703 A CN201810933703 A CN 201810933703A CN 108954374 A CN108954374 A CN 108954374A
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- China
- Prior art keywords
- air
- valve
- connect
- burner
- afterburning
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/02—Air or combustion gas valves or dampers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Combined Cycle Heat Recovery Boiler afterburning wind system.Increasing afterburning burner in the entrance of waste heat boiler is to improve residual heat boiler for exchanging heat efficiency, increases the effective means of power station generation load.But due to being limited by gas turbine smoke evacuation oxygen concentration, Yi Xieqi, oil fuel cannot carry out full combustion by afterburning burner.Present invention composition includes: afterburning burner (1), burner is connect with control cabinet, there is one group of fuel inlet interface, one group of air feed interface, compressed air interface on afterburning burner, fuel inlet interface is connect with gaseous fuel main pipeline (2), gaseous fuel main pipeline is connect with one group of compressed air pipe (3), assisted gas pipeline (4), compressed air pipe is connect with air compressor (5), and air feed interface connects air-supply pipeline (6), and air-supply pipeline is connect with air blower (7).The present invention is used for the novel air feed system of Combined Cycle Heat Recovery Boiler afterburning burner.
Description
Technical field:
The present invention relates to a kind of Combined Cycle Heat Recovery Boiler afterburning wind systems.
Background technique:
In recent years, power industry always send out from early in the twentieth century by continuous high speed development, integrated gas-steam combined cycle power plant technology
Exhibition has possessed the technical system of complete set so far, is a kind of technically reliable, stable, the huge mature hair of user group
Power technology.The domestic and international combined cycle generation power plant market demand is stablized, and each enterprise is actively carrying out Combined Cycle Heat Recovery Boiler
The exploitation and improvement of technology.
Increasing afterburning burner in the entrance of waste heat boiler is to improve residual heat boiler for exchanging heat efficiency, increases power station generation load
Effective means.But due to being limited by gas turbine smoke evacuation oxygen concentration, Yi Xieqi, oil fuel cannot be burnt by afterburning
Device carries out full combustion, causes uncombusted loss higher, economic benefit is low or even certain fuel are not used to waste heat boiler afterburning
System.
Summary of the invention:
The object of the present invention is to provide a kind of Combined Cycle Heat Recovery Boiler afterburning wind systems.
Above-mentioned purpose is realized by following technical scheme:
A kind of Combined Cycle Heat Recovery Boiler afterburning wind system, composition includes: afterburning burner, the afterburning burner arrangement
It is arranged in the position between heating surface in the gas approach section of waste heat boiler or according to system thermodynamic computing result, it is described
Burner is connect with control cabinet, has one group of fuel inlet interface, one group of air feed interface, compression empty on the afterburning burner
Gas interface, the fuel inlet interface are connect with gaseous fuel main pipeline, the gaseous fuel main pipeline and one group of compression
Air pipeline, the connection of assisted gas pipeline, the compressed air pipe are connect with air compressor, and the air feed interface connects
Air-supply pipeline is connect, the air-supply pipeline is connect with air blower.
The Combined Cycle Heat Recovery Boiler afterburning wind system, the compressed air hose road are equipped with shut-off valve, electricity
Dynamic shut-off valve.
The Combined Cycle Heat Recovery Boiler afterburning wind system, be equipped on the gaseous fuel main pipeline shut-off valve,
Check-valves, Pcv valve, atmosphere discharge pipe are equipped with Pcv valve on the atmosphere discharge pipe, positioned at the compressed air
Pressure gauge, long-range on the spot is installed on the gaseous fuel main pipeline between pipeline, the auxiliary air gas pipeline
Pressure gauge.
The Combined Cycle Heat Recovery Boiler afterburning wind system, the assisted gas pipeline include assisted gas supervisor
Road, the assisted gas main line are connect with 2 assisted gas branch lines respectively, the assisted gas branch line with
The fuel inlet interface connects, and is sequentially installed with shut-off valve, Pcv valve, electronic shutdown on the assisted gas main line
Valve, on the spot pressure gauge, shut-off valve are equipped with regulating valve, shut-off valve on the assisted gas branch line.
The Combined Cycle Heat Recovery Boiler afterburning wind system, the air-supply pipeline includes air feed main line, described
Air feed main line is connect with air feed bye-pass respectively, and shut-off valve, the air feed branch are equipped on the air feed main line
Regulating valve, shut-off valve are installed on pipeline.
The utility model has the advantages that
Air feed bypass is increased in the burner of waste heat boiler of the present invention, and air is input to through air-supply pipeline by afterburning by blower
At burner nozzle, aid fuel combustion.Can be supplied to wind system can be improved the oxygen content of combustion turbine exhaustion, and afterburning is made to burn
Device can use the gas of high heating value, oil fuel.Improve the adaptability that waste heat boiler afterburning system chooses fuel.
The fuel characteristic and afterburning load control volume of air supply that the present invention is used according to boiler.Air feed nozzle is integrated in afterburning combustion
It is simple and reliable for structure without individually individually being arranged in waste-heat oven flue in burner.Simulation calculating is carried out for engineering project, it is quasi-
Really arrangement burner can be such that combustion gas mixes with air later for the structure and relative position of air port and material inlet, thus effectively anti-
Only burner scaling loss.
The air feed system that the present invention is arranged is simple and reliable, strong applicability, can flexibly deploy air feed according to specific fuel attribute
Ratio control burning, hence it is evident that improve the burner performance of burner.
The present invention expands the optional range of afterburning burner fuel, and the efficiency of combustion of waste-heat oven afterburning system can be improved,
Air feed system can pass through nozzle arrangements control burning wind and fuel hybrid position and control torch form, protection burner with
The safety of downstream heated face structure, by can Effective Regulation fuel combustion state, control NOx discharge, improve environmental protection index.
Burner of the invention is typically located at the gas approach section of waste heat boiler, can also be according to system thermodynamic computing result
It is arranged in the position between heating surface.There are several pipe joints on burner, the pipe joint of normal burner is combustion
Expect that system pipeline, this patent are provided with air in combustion port and feed point of interface, can input air by the interface
The auxiliary fuel full combustion into burner improves oxygen content in furnace, improves suitability of fuel and strengthen burning quality.Same space-time
Gas feeds pipeline can adjust the control air amount of feeding by blower, tune valve, enhance the control to burner, guarantee each fortune
The service requirement of row operating condition.
Fuel gas pipeline of the present invention is disposed with shut-off valve, pressure transmitter, regulating valve, filter, pressure gauge, solenoid valve, pressure
Power switch, diffusion valve.Air pipe line connects machice to supply fan and burner wind path interface, and machice to supply fan is arranged in on-site auxiliary and sets
It is standby interior, shut-off valve and regulating valve are arranged in pipeline.Two pipelines cooperate jointly feeds fuel and air that burning needs, protects
Demonstrate,prove the regulation demand of the different operating conditions such as start-stop, regulation in boiler operatiopn.Control cabinet include emergency shutoff device, power switch,
Burner switch resets the groundworks modules such as system, flame detecting device, ignition transformer, the whole series access plant area DCS on the spot
System carries out being uniformly controlled management.
Detailed description of the invention:
Attached drawing 1 is structural schematic diagram of the invention.
Specific embodiment:
Embodiment 1:
A kind of Combined Cycle Heat Recovery Boiler afterburning wind system, composition includes: afterburning burner 1, the afterburning burner cloth
It sets in the gas approach section of waste heat boiler or the position between heating surface is arranged according to system thermodynamic computing result, it is described
Burner connect with control cabinet, on the afterburning burner have one group of fuel inlet interface, one group of air feed interface, compression
Air interface, the fuel inlet interface are connect with gaseous fuel main pipeline 2, the gaseous fuel main pipeline and one group of pressure
Contracting air pipeline 3, assisted gas pipeline 4 connect, and the compressed air pipe is connect with air compressor 5, the air feed
Interface connects air-supply pipeline 6, and the air-supply pipeline is connect with air blower 7.
The nozzle of afterburning burner is triangle, is analyzed in engineering by flow field simulation, the specific cloth of designed combustion device
Seated position and nozzle angle can carry out more combustion zone and the length of flame because this system can control combustion air
Accurately control facilitates the heating surface for protecting combustor nozzle and burner downstream.Conventional fuel is used, the length of flame is controllable
For system within the scope of 4.5 meters, the about 100Pa of pressure drop caused by burner, every burner can provide the heat of 22GJ/h.Also, because
This system can control the oxygen amount in combustion process, and oxygen amount can be adjusted according to different operating situation, is effectively controlled in combustion process
The production quantity of NOx, in the case where afterburning natural gas, NOx emission is lower than 48mg/MJ, improves integral device environmental protection index.Installation
Burner needs carry out aperture on waste heat furnace body, and perforated area is about 0.2 square metre of rectangle, since HRSG Inlet Duct is equal
There is biggish space, conventional waste-heat oven has this burner of space layout.
Embodiment 2:
According to Combined Cycle Heat Recovery Boiler afterburning wind system described in embodiment 1, the compressed air hose road is equipped with pass
Disconnected valve 8, electronic shut-off valve 9.
Embodiment 3:
According to Combined Cycle Heat Recovery Boiler afterburning wind system described in embodiment 1, it is equipped on the gaseous fuel main pipeline
Shut-off valve, check-valves 10, Pcv valve 11, atmosphere discharge pipe 12 are equipped with Pcv valve on the atmosphere discharge pipe, are located at institute
It is equipped on the spot on the gaseous fuel main pipeline between the compressed air pipe stated, the auxiliary air gas pipeline
Pressure gauge 13, remote pressure gauge 14.
Embodiment 4:
The Combined Cycle Heat Recovery Boiler afterburning wind system according to embodiment 1 or 2, the assisted gas pipeline include auxiliary
Combustion gas main line, the assisted gas main line are connect with 2 assisted gas branch lines respectively, the assisted gas point
Bye-pass is connect with the fuel inlet interface, be sequentially installed on the assisted gas main line shut-off valve, Pcv valve,
Electronic shut-off valve, on the spot pressure gauge, shut-off valve are equipped with regulating valve 15, shut-off valve on the assisted gas branch line.
Embodiment 5:
The Combined Cycle Heat Recovery Boiler afterburning wind system according to embodiment 1 or 2, the air-supply pipeline include air feed supervisor
Road, the air feed main line are connect with air feed bye-pass respectively, are equipped with shut-off valve on the air feed main line, described
Regulating valve, shut-off valve are installed on air feed branch line.
Claims (5)
1. a kind of Combined Cycle Heat Recovery Boiler afterburning wind system, composition includes: afterburning burner, it is characterized in that: the benefit
Burner is arranged in the gas approach section of waste heat boiler or is arranged between heating surface according to system thermodynamic computing result
Position, the burner connect with control cabinet, has one group of fuel inlet interface, one group of confession on the afterburning burner
Wind interface, compressed air interface, the fuel inlet interface are connect with gaseous fuel main pipeline, the gaseous fuel supervisor
Road is connect with one group of compressed air pipe, assisted gas pipeline, and the compressed air pipe is connect with air compressor, described
Air feed interface connect air-supply pipeline, the air-supply pipeline connect with air blower.
2. Combined Cycle Heat Recovery Boiler afterburning wind system according to claim 1, it is characterized in that: the compressed air hose
Road is equipped with shut-off valve, electronic shut-off valve.
3. Combined Cycle Heat Recovery Boiler afterburning wind system according to claim 1, it is characterized in that: the gaseous fuel master
Shut-off valve, check-valves, Pcv valve, atmosphere discharge pipe are installed on pipeline, Pcv valve is installed on the atmosphere discharge pipe,
It is installed on the gaseous fuel main pipeline between the compressed air pipe, the auxiliary air gas pipeline
There are pressure gauge, remote pressure gauge on the spot.
4. Combined Cycle Heat Recovery Boiler afterburning wind system according to claim 1 or 2, it is characterized in that: the auxiliary is fired
Feed channel includes assisted gas main line, and the assisted gas main line is connect with 2 assisted gas branch lines respectively, institute
The assisted gas branch line stated is connect with the fuel inlet interface, is sequentially installed on the assisted gas main line
Shut-off valve, Pcv valve, electronic shut-off valve, on the spot pressure gauge, shut-off valve are equipped with adjusting on the assisted gas branch line
Valve, shut-off valve.
5. Combined Cycle Heat Recovery Boiler afterburning wind system according to claim 1 or 2, it is characterized in that: the air duct
Road includes air feed main line, and the air feed main line is connect with air feed bye-pass respectively, is installed on the air feed main line
There is shut-off valve, regulating valve, shut-off valve are installed on the air feed branch line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933703.8A CN108954374B (en) | 2018-08-16 | 2018-08-16 | After-combustion air system of combined cycle waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810933703.8A CN108954374B (en) | 2018-08-16 | 2018-08-16 | After-combustion air system of combined cycle waste heat boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108954374A true CN108954374A (en) | 2018-12-07 |
| CN108954374B CN108954374B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810933703.8A Active CN108954374B (en) | 2018-08-16 | 2018-08-16 | After-combustion air system of combined cycle waste heat boiler |
Country Status (1)
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| CN (1) | CN108954374B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116611A (en) * | 1976-09-01 | 1978-09-26 | Consolidated Natural Gas Service Company | Gaseous and liquid fuel burner |
| CN102538489A (en) * | 2011-12-31 | 2012-07-04 | 浙江西子联合工程有限公司 | Afterheat utilization flue after-burning device and after-burning method thereof |
| CN102563858A (en) * | 2012-01-13 | 2012-07-11 | 云南泛亚能源科技有限公司 | Complementary combustion device for low temperature waste heat power generation |
| CN203010565U (en) * | 2012-12-04 | 2013-06-19 | 常州新奥燃气工程有限公司 | Waste heat-afterburning and no-waste heat parallel type steam production device |
| CN203349251U (en) * | 2013-06-05 | 2013-12-18 | 杭州海陆重工有限公司 | Afterburning system device of sintering waste-heat boiler |
| CN203586172U (en) * | 2013-10-17 | 2014-05-07 | 无锡东马锅炉科技有限公司 | After-burning furnace for sintering machine waste heat boiler |
| CN204200288U (en) * | 2014-11-05 | 2015-03-11 | 中国华能集团清洁能源技术研究院有限公司 | A kind of IGCC electric power station system with HRSG with Supplementary Firing |
| WO2015187064A2 (en) * | 2014-06-04 | 2015-12-10 | Фонд поддержки научной, научно-технической и инновационной деятельности "Энергия без границ" | Multi-mode combined cycle power plant |
| CN105221263A (en) * | 2015-09-18 | 2016-01-06 | 中国航空工业集团公司沈阳发动机设计研究所 | Cold Gas Turbine Combined-cycle system between one |
| CN107664046A (en) * | 2017-09-22 | 2018-02-06 | 中国华能集团公司 | A kind of energy-saving activation system in IGCC power stations |
| CN207455550U (en) * | 2017-09-28 | 2018-06-05 | 仟亿达集团股份有限公司 | Sintering exhaust-heat boiler afterburning stove |
| CN207515513U (en) * | 2017-09-28 | 2018-06-19 | 仟亿达集团股份有限公司 | Sintering exhaust-heat boiler afterburning stove |
-
2018
- 2018-08-16 CN CN201810933703.8A patent/CN108954374B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116611A (en) * | 1976-09-01 | 1978-09-26 | Consolidated Natural Gas Service Company | Gaseous and liquid fuel burner |
| CN102538489A (en) * | 2011-12-31 | 2012-07-04 | 浙江西子联合工程有限公司 | Afterheat utilization flue after-burning device and after-burning method thereof |
| CN102563858A (en) * | 2012-01-13 | 2012-07-11 | 云南泛亚能源科技有限公司 | Complementary combustion device for low temperature waste heat power generation |
| CN203010565U (en) * | 2012-12-04 | 2013-06-19 | 常州新奥燃气工程有限公司 | Waste heat-afterburning and no-waste heat parallel type steam production device |
| CN203349251U (en) * | 2013-06-05 | 2013-12-18 | 杭州海陆重工有限公司 | Afterburning system device of sintering waste-heat boiler |
| CN203586172U (en) * | 2013-10-17 | 2014-05-07 | 无锡东马锅炉科技有限公司 | After-burning furnace for sintering machine waste heat boiler |
| WO2015187064A2 (en) * | 2014-06-04 | 2015-12-10 | Фонд поддержки научной, научно-технической и инновационной деятельности "Энергия без границ" | Multi-mode combined cycle power plant |
| CN204200288U (en) * | 2014-11-05 | 2015-03-11 | 中国华能集团清洁能源技术研究院有限公司 | A kind of IGCC electric power station system with HRSG with Supplementary Firing |
| CN105221263A (en) * | 2015-09-18 | 2016-01-06 | 中国航空工业集团公司沈阳发动机设计研究所 | Cold Gas Turbine Combined-cycle system between one |
| CN107664046A (en) * | 2017-09-22 | 2018-02-06 | 中国华能集团公司 | A kind of energy-saving activation system in IGCC power stations |
| CN207455550U (en) * | 2017-09-28 | 2018-06-05 | 仟亿达集团股份有限公司 | Sintering exhaust-heat boiler afterburning stove |
| CN207515513U (en) * | 2017-09-28 | 2018-06-19 | 仟亿达集团股份有限公司 | Sintering exhaust-heat boiler afterburning stove |
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|---|---|
| CN108954374B (en) | 2023-05-30 |
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