CN209690259U - 9FA Gas Turbine Combined-cycle NO2Emission source measuring device - Google Patents
9FA Gas Turbine Combined-cycle NO2Emission source measuring device Download PDFInfo
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- CN209690259U CN209690259U CN201822242127.0U CN201822242127U CN209690259U CN 209690259 U CN209690259 U CN 209690259U CN 201822242127 U CN201822242127 U CN 201822242127U CN 209690259 U CN209690259 U CN 209690259U
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- flue gas
- waste heat
- heat boiler
- turbine
- gas analyzer
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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
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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Abstract
The utility model relates to a kind of 9FA Gas Turbine Combined-cycle NO2Emission source measuring device, it belongs to gas turbine power generation field.The utility model includes generator, low pressure (LP) cylinder, intermediate pressure cylinder, high pressure cylinder, compressor, combustion chamber, turbine, waste heat boiler, flue gas analyzer one, flue gas analyzer two and flue gas analyzer three, generator, low pressure (LP) cylinder, intermediate pressure cylinder, high pressure cylinder, compressor, combustion chamber, turbine and waste heat boiler are sequentially connected, waste heat boiler is matched with gas turbine, the turbine exhaust mouth of gas turbine is arranged in flue gas analyzer one, the setting of flue gas analyzer two is arranged at waste heat boiler chimney in waste heat boiler import, flue gas analyzer three.The utility model structure design advantages of simple, measurement is accurate, obtains NO by the NO concentration in the outlet of measurement gas turbine turbine, turbine to the flue gas of the outlet of waste heat boiler expansion segment and waste heat boiler chimney each position and is converted into NO in waste heat boiler2The case where.
Description
Technical field
The utility model relates to a kind of devices, more particularly, to a kind of 9FA Gas Turbine Combined-cycle NO2Emission source measurement
Device, it belongs to gas turbine power generation field.
Background technique
Gas Turbine Combined-cycle is a kind of efficient, cleaning, the quick gaseous fuel hot merit transformation technology of start and stop.At present I
The installation scale of state's gas turbine power generation and cogeneration has reached 70,000,000 kilowatts or so.A large amount of Gas Turbine Combined-cycle machines
It organizes during startup, due to the NO in smoke evacuation2The phenomenon that height emits tobacco there are chimney.Studies have shown that as the NO in flue gas2It reaches
When to about 10ppm or more, i.e., visible faint yellow smoke evacuation.
In general, in the NOx that gas-turbine combustion chamber burning generates, NO accounting should be only a small amount of 95% or more
NO2It produces.But in the PG9351FA gas turbine start-up course of the configuration combustion chamber DLN2.0+, the row of flue gas at low load
It puts with NO2Based on.Part research is thought, in Gas Turbine Combined-cycle start-up course, the NO that combustion chamber generates can be in waste heat
NO is converted into boiler2, and lead to the one of the major reasons for starting tobacco.Currently, PG9351FA Gas Turbine Combined-cycle
Unit a large amount of NO during startup2It does not know in the source of generation.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide a kind of structure design letter
Single rationally measurement is accurate, and by the outlet of measurement gas turbine turbine, turbine to waste heat boiler expansion segment exports and waste heat boiler
NO concentration in the flue gas of chimney each position obtains NO and is converted into NO in waste heat boiler2The case where 9FA it is combustion turbine combined
Recycle NO2Emission source measuring device.
The technical scheme in the invention for solving the above technical problem is: 9FA Gas Turbine Combined-cycle NO2 discharge
Source measuring device, including generator, low pressure (LP) cylinder, intermediate pressure cylinder, high pressure cylinder, compressor, combustion chamber, turbine and waste heat boiler, it is described
Generator, low pressure (LP) cylinder, intermediate pressure cylinder, high pressure cylinder, compressor, combustion chamber, turbine and waste heat boiler are sequentially connected, waste heat boiler and combustion
Gas-turbine matching, it is characterised in that: further include flue gas analyzer one, flue gas analyzer two and flue gas analyzer three, the flue gas
The turbine exhaust mouth of gas turbine is arranged in analyzer one, and flue gas analyzer two is arranged in waste heat boiler import, flue gas analyzer
Three are arranged at waste heat boiler chimney；Combustion gas wheel is measured by flue gas analyzer one, flue gas analyzer two and flue gas analyzer three
NO concentration in the outlet of machine turbine, turbine to the flue gas of the outlet of waste heat boiler expansion segment and waste heat boiler chimney each position obtains
NO is converted into NO in waste heat boiler2The case where.
Preferably, the utility model further includes the cooling structure on sampling gun head, the flue gas analyzer one, flue gas point
Analyzer two and flue gas analyzer three are respectively provided with the cooling structure on sampling gun head；In sampling process, chilling is carried out to sampling gun,
Guarantee quickly to be cooled to after flue gas enters sampling gun below about 400 DEG C -450 DEG C.
Preferably, the utility model further includes oxygen-eliminating device, oxygen-eliminating device is arranged in the output end of the waste heat boiler.
Preferably, the utility model further includes low pressure feed water pump, middle pressure feed pump, high pressure water pump, the oxygen-eliminating device
Outlet end be connected respectively by low pressure feed water pump, middle pressure feed pump, high pressure water pump with the input terminal of waste heat boiler.
The utility model compared with prior art, has the following advantages that and effect: (1) being gone out by measuring gas turbine turbine
NO concentration in mouth, turbine to the flue gas of the outlet of waste heat boiler expansion segment and waste heat boiler chimney each position obtains NO in waste heat
NO is converted into boiler2The case where；(2) during smoke sampling, guarantee NO in sampling process by the chilling of sampling gun
In will not be rapidly converted into NO2；(3) Combined-cycle Gas Turbine Unit NO during startup is obtained2Discharge the source generated.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model embodiment.
In figure: compressor 1, combustion chamber 2, turbine 3, waste heat boiler 4, high pressure water pump 5, flue gas analyzer 1, flue gas point
Analyzer 27, flue gas analyzer 38, the cooling structure 9 on sampling gun head, generator 10, low pressure (LP) cylinder 11, intermediate pressure cylinder 12, high pressure cylinder
13, condenser 14, condensate pump 15, oxygen-eliminating device 16, low pressure feed water pump 17, middle pressure feed pump 18, high pressure superheated steam A, middle pressure
Superheated steam B, low-pressure superheated steam C, discharge fume D, air E, fuel gas F, moisturizing G, recirculated cooling water H, flue gas I.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment.
Referring to Fig. 1, the present embodiment 9FA Gas Turbine Combined-cycle NO2Emission source measuring device includes compressor 1, burning
Room 2, turbine 3, waste heat boiler 4, flue gas analyzer 1, flue gas analyzer 27, flue gas analyzer 38, sampling gun head it is cold
But structure 9, generator 10, low pressure (LP) cylinder 11, intermediate pressure cylinder 12 and high pressure cylinder 13, the generator 10, low pressure (LP) cylinder 11, intermediate pressure cylinder 12, height
Cylinder pressure 13, compressor 1, combustion chamber 2, turbine 3 and waste heat boiler 4 are sequentially connected, and waste heat boiler 4 is matched with gas turbine, flue gas
3 exhaust outlet of turbine of gas turbine is arranged in analyzer 1, and the setting of flue gas analyzer 27 is in 4 import of waste heat boiler, flue gas point
Analyzer 38 is arranged at 4 chimney of waste heat boiler.
The present embodiment 9FA Gas Turbine Combined-cycle NO2 emission source measuring process is as follows: in Gas Turbine Combined-cycle machine
When group starting, i.e., by flue gas analyzer 1, flue gas analyzer 27, in 38 continuous on-line detection flue gas I of flue gas analyzer
NO、NO2And CO is passed through recirculated cooling water H to sampling gun in sampling process；The NO concentration that flue gas analyzer 1 measures subtracts
The NO concentration that flue gas analyzer 27 measures is that the NO in flue gas is converted into NO in 4 expansion segment of waste heat boiler2Amount, flue gas
It is that the NO in flue gas is changed in waste heat boiler 4 that the NO concentration that analyzer 27 measures, which subtracts the NO concentration that flue gas analyzer 38 measures,
NO is converted into hot arc2Amount；The NO that flue gas analyzer 1 measures2For the NO generated in gas-turbine combustion chamber 22Amount.
The outlet of the present embodiment mesolow cylinder 11 is sequentially connected in series after condenser 14 and condensate pump 15 and 4 phase of waste heat boiler
Even, the output end of waste heat boiler 4 is connected with oxygen-eliminating device 16, the outlet end of the oxygen-eliminating device 16 pumps 17 by low pressure feed water respectively, in
Pressure feed pump 18, high pressure water pump 5 are connected with the input terminal of waste heat boiler 4, and waste heat boiler 4 exports high pressure superheated steam A and enters
High pressure cylinder 13 presses through hot steam B in the output of waste heat boiler 4 and enters intermediate pressure cylinder 12, waste heat boiler 4 export low-pressure superheated steam C into
Enter low pressure (LP) cylinder 11, the rear end of waste heat boiler 4 enters compressor 1 for the D that discharges fume, air E, and fuel gas F enters gas turbine combustion
Room 2, moisturizing G fill into waste heat boiler 4 and condensate pump 15 according to demand.
The flue gas analyzer 1, flue gas analyzer 27 and flue gas analyzer 38 of the present embodiment are for measuring in flue gas I
NO、NO2And O2It when concentration, is cooled down using head of the cooling water to sampling gun, flue gas analyzer 1, flue gas analyzer 27
The cooling structure 9 on sampling gun head is respectively provided with flue gas analyzer 38, the cooling structure 9 on the sampling gun head is illustrated such as Fig. 1 institute
Show.
3 vent position of turbine, the turbine 3 of the present embodiment PG9351FA gas turbine are vented to the expansion of waste heat boiler 4
Section outlet port and 4 chimney position of waste heat boiler measure NO and NO in flue gas respectively2Concentration, oxygen concentration；By comparing three
Whether the NO of a difference measurement position, the NO obtained in the exhaust of turbine 3 have occurred NO to NO in waste heat boiler 42Conversion with
And NO is to NO2Conversion ratio；The NO measured by 3 exhaust position of turbine2, the NO of the available generation of combustion chamber 22Discharge；Saturating
Flat 3 outlet and turbine 3 are vented to the expansion segment outlet port measurement NO and NO of waste heat boiler 42Concentration process is, from gas turbine
In a small amount of flue gas of line extraction in exhaust uptake, NO, NO of sampling flue gas are measured using flue gas analyzer2And oxygen concentration；It is sampling
In the process, chilling is carried out to sampling gun, guarantees quickly to be cooled to after flue gas enters sampling gun below about 400 DEG C -450
℃。
The purpose of the present embodiment be achieved in that the study found that Combined-cycle Gas Turbine Unit during startup,
NO2The source of generation may be from being converted into NO in waste heat boiler 4 in combustion chamber 2, NO2.Research is thought, combustion turbine combined
In 4 flue of waste heat boiler of Cycle Unit, the NO in combustion engine smoke evacuation may be converted quickly under the action of the gases such as CO
For NO2, the range of reaction temperature of rapid conversion is 500-800 DEG C.PG9351FA Combined-cycle Gas Turbine Unit is starting
In the process, exhaust gas temperature can fall in this temperature range, and due to incomplete combustion in start-up course, CO discharges higher, NO
NO may be rapidly converted into waste heat boiler 42The exhaust of gas turbine turbine 3 enters before the heat-transfer surface of waste heat boiler 4,
An expansion segment can be passed through.In expansion segment, the temperature of flue gas becomes larger less, and under steady state conditions, a reactor, flue gas is gone out with approaching turbine 3
Residence time of the temperature of mouth in expansion segment is about 1 second or so, i.e. the smoke evacuation of turbine 3 is likely to that NO conversion occurs in expansion segment
For NO2Reaction.
The flue gas NO that the present embodiment is exported from 3 exhaust outlet of gas turbine turbine, 4 import of waste heat boiler and waste heat boiler 4
Measurement compared with, obtain conversion ratio of the NO in waste heat boiler 4；The present embodiment analyzes the component of flue gas by on-line period,
In order to avoid NO is converted into NO in sampling process2, Cooling Mode is taken to sampling gun, drops the flue gas of sampling quickly
As low as 400 DEG C hereinafter, its NO in sampling process is avoided to be converted into NO2, the measurement of NO concentration is caused to be distorted；In sampling process
In, sampling flue gas may be cooled to dew point before entering analyzer hereinafter, then NO therein2It a small amount of can be only absorbed by the water,
So that the NO that analyzer measurement obtains2It is relatively low, but the NO that analyzer measurement obtains then will not；The present embodiment utilizes different location
The difference of NO concentration obtain conversion ratio of the NO in waste heat boiler 4, so as to avoid due to NO2It is difficult to survey in measurement process
Measure accurate problem.
By above-mentioned elaboration, those skilled in the art can implement.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to the utility model structure example explanation described in this specification.
All equivalence changes or simple change done according to structure, feature and principle described in the concept of the patent of the utility model, are wrapped
It includes in the protection scope of the utility model patent.Those skilled in the art of the present invention can be to described
Specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from the knot of the utility model
Structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (4)
1. a kind of 9FA Gas Turbine Combined-cycle NO2Emission source measuring device, including generator, low pressure (LP) cylinder, intermediate pressure cylinder, high pressure
Cylinder, compressor, combustion chamber, turbine and waste heat boiler, the generator, low pressure (LP) cylinder, intermediate pressure cylinder, high pressure cylinder, compressor, burning
Room, turbine and waste heat boiler are sequentially connected, and waste heat boiler is matched with gas turbine, it is characterised in that: further include flue gas analyzer
One, the turbine exhaust mouth of gas turbine, flue gas is arranged in flue gas analyzer two and flue gas analyzer three, the flue gas analyzer one
The setting of analyzer two is arranged at waste heat boiler chimney in waste heat boiler import, flue gas analyzer three.
2. 9FA Gas Turbine Combined-cycle NO according to claim 12Emission source measuring device, it is characterised in that: also wrap
The cooling structure on sampling gun head is included, the flue gas analyzer one, flue gas analyzer two and flue gas analyzer three are respectively provided with sampling
The cooling structure in pipette tips portion.
3. 9FA Gas Turbine Combined-cycle NO according to claim 12Emission source measuring device, it is characterised in that: also wrap
Oxygen-eliminating device is included, oxygen-eliminating device is arranged in the output end of the waste heat boiler.
4. 9FA Gas Turbine Combined-cycle NO according to claim 32Emission source measuring device, it is characterised in that: also wrap
Low pressure feed water pump, middle pressure feed pump, high pressure water pump are included, the outlet end of the oxygen-eliminating device passes through low pressure feed water pump, middle pressure respectively
Feed pump, high pressure water pump are connected with the input terminal of waste heat boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242127.0U CN209690259U (en) | 2018-12-29 | 2018-12-29 | 9FA Gas Turbine Combined-cycle NO2Emission source measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822242127.0U CN209690259U (en) | 2018-12-29 | 2018-12-29 | 9FA Gas Turbine Combined-cycle NO2Emission source measuring device |
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| CN209690259U true CN209690259U (en) | 2019-11-26 |
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| CN201822242127.0U Active CN209690259U (en) | 2018-12-29 | 2018-12-29 | 9FA Gas Turbine Combined-cycle NO2Emission source measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856325A (en) * | 2018-12-29 | 2019-06-07 | 杭州华电半山发电有限公司 | 9FA Gas Turbine Combined-cycle NO2Emission source measuring device and method |
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2018
- 2018-12-29 CN CN201822242127.0U patent/CN209690259U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856325A (en) * | 2018-12-29 | 2019-06-07 | 杭州华电半山发电有限公司 | 9FA Gas Turbine Combined-cycle NO2Emission source measuring device and method |
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