CN106440834A - Measurement method for air taking flow of double-air taking double-channel sinter ring cold machine waste heat boiler - Google Patents
Measurement method for air taking flow of double-air taking double-channel sinter ring cold machine waste heat boiler Download PDFInfo
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- CN106440834A CN106440834A CN201610890347.7A CN201610890347A CN106440834A CN 106440834 A CN106440834 A CN 106440834A CN 201610890347 A CN201610890347 A CN 201610890347A CN 106440834 A CN106440834 A CN 106440834A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a measurement method for air taking flow of a double-air taking double-channel sinter ring cold machine waste heat boiler. The measurement method is designed mainly for the situation where the air taking flow of the sinter ring cold machine waste heat boiler is indirectly acquired without the condition for directly measuring the air taking flow during recovery of waste heat of a sinter ring cold machine. The measurement method comprises the steps of acquiring effective data; calculating effective utilization heat of the waste heat boiler; calculating the volume ratio of water vapors in air taking pipelines; calculating an air taking enthalpy value of a high temperature section of the sinter ring cold machine, and an air taking enthalpy value of a low temperature section of the sinter ring cold machine; then, calculating to acquire the air taking flow of the high temperature section of the sinter ring cold machine waste heat boiler through parameters on the flue gas side of a superheater of the high temperature section of the waste heat boiler; and finally, calculating to acquire the air taking flow of the low temperature section of the sinter ring cold machine waste heat boiler.
Description
Technical field
The present invention relates to a kind of pair takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method.Invention is related to
The sintering art of steel and iron industry, more particularly, to a kind of pair takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring
Method.
Background technology
In steel manufacture process, sintering circuit energy consumption is only second to Iron-smelting, account for iron and steel produce total energy consumption 10%～
12%, and in sintering circuit, the heat entering air in the form of sintering device flue gas and cooling machine waste gas sensible heat accounts for agglomerant
The 50% about of sequence total energy consumption.Because the temperature of sintering circular-cooler waste gas is not high, substantially 150～450 DEG C, add waste heat before this
The limitation of recovery technology, sintering circular-cooler waste gas residual heat reclaims long-term only the acquisition in the large-scale steel mill of minority of project and applies.
In recent years, with the development of low temperature exhaust heat recovery technology, the cost of waste heat recovery project of steel industry and investment
It is greatly lowered, the efficiency of waste-heat recovery device significantly improves simultaneously, large quantities of middle-size and small-size iron and steel enterprises waste heat that also starts one after another returns
Receipts project, sintering circular-cooler waste heat boiler is widely applied, and especially gets in Current resource growing tension and environmental requirement
Come under higher situation, more can highlight its economic benefit and social benefit.
For sintering circular-cooler residual neat recovering system, it is most basic that central cooler waste heat recovery section takes air quantity (exhaust gas volumn)
Input condition, be also one of main monitoring parameter that residual neat recovering system runs, however, due to sintering circular-cooler waste heat recovery
System requirements floor space is larger, and the most all ratios relatively limited (especially transformation project) of actual place condition, it is difficult to ensure that taking
Wind pipeline has longer straight length.And still further aspect, because exhaust gas volumn (air quantity) is larger, lead to central cooler to take wind pipeline caliber
Very big (the wind pipeline caliber that takes of large-scale central cooler is even as high as 3～4m), and flow measurement has for the length of in front and back's straight length
And compare strict requirements, thus engineering site is difficult to meet and takes the flow measurement of wind pipeline to require, and this inevitably results in
Distinguished and admirable measurements are taken to greatly deviate from actual value, thus losing effectiveness.
Therefore, double wind dual pathways sintering circular-cooler residual neat recovering system, structure are taken at present wide variety of in engineering
Build a sintering circular-cooler and take distinguished and admirable measuring method, under conditions of not possessing direct measurement at the scene, indirect gain pair takes wind double
Passage sintering circular-cooler waste heat boiler take wind flow, the operation monitoring for waste heat boiler and operation adjustment provide infallible data,
There is important Practical significance.
Content of the invention
For reaching above-mentioned purpose, the present invention provides a kind of pair to take wind single channel sintering circular-cooler waste heat boiler to take distinguished and admirable measurement
Amount method, methods described includes：Choosing take in wind pipeline wherein one of sintering circular-cooler waste heat boiler two takes the wind pipeline to be
First pipeline, another pipeline is second pipe；Corresponding first pipeline of wind flow that takes of the wherein first pipeline takes wind flow, and second
The corresponding second pipe of wind flow that takes of pipeline takes wind flow, and concrete measuring method is：
The superheat steam flow of acquisition waste heat boiler, superheated steam enthalpy, feedwater enthalpy, are calculated remaining using the described data obtaining
The effectively utilizes heat of heat boiler；
According to exhaust-heat boiler flue gas side operational factor and waste heat boiler soda pop side operational factor, iterative calculation takes in wind pipeline
Flue gas in the volume accounting of vapor and sintering circular-cooler waste heat boiler import flue gas total flow；
According to the volume accounting of vapor, sintering circular-cooler waste heat boiler import flue gas total flow, burning in described flue gas
Knot central cooler first pipeline takes corresponding first pipeline of wind flow to take wind enthalpy, sintering circular-cooler second pipe to take wind flow to correspond to
Second pipe take wind enthalpy, waste heat boiler import flue gas enthalpy, the sintering circular-cooler waste heat pot under iterative calculation standard state
Stove first and second pipeline takes wind flow；
Wind flow and local air are taken according to sintering circular-cooler waste heat boiler first and second pipeline under described standard state
Pressure, sintering circular-cooler first and second pipeline takes wind pressure and sintering circular-cooler first and second pipeline wind temperature, calculates actual shape
Sintering circular-cooler waste heat boiler first and second pipeline under state takes wind flow.
Preferably, a kind of pair takes wind single channel sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, waste heat boiler is
Single-pressure HGSR, obtaining the hot calculating formula of waste heat boiler effectively utilizes is：
Ql=Dgr(hgr-hgs), wherein,
QlFor waste heat boiler effectively utilizes heat, kJ/h；
DgrFor waste heat boiler superheat steam flow, kg/h；
hgrFor waste heat boiler superheated steam enthalpy, kJ/kg；
hgsFor waste heat boiler Enthalpy of Feed Water, kJ/kg.
Or waste heat boiler is double discard heat boiler, the calculating formula obtaining the effectively utilizes heat of waste heat boiler is：
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein,
QlFor waste heat boiler effectively utilizes heat, kJ/h；
Dgr1For waste heat boiler high pressure section superheat steam flow, kg/h；
hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg；
Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；
hgr2For waste heat boiler low pressure stage superheated steam enthalpy, kJ/kg；
hgsFor waste heat boiler import Enthalpy of Feed Water, kJ/kg.
According to exhaust-heat boiler flue gas side operational factor and waste heat boiler soda pop side operational factor, iterative calculation takes in wind pipeline
Flue gas in the volume accounting of vapor and sintering circular-cooler waste heat boiler import flue gas total flow, concretely comprise the following steps：
1) set volume accounting k of vapor in an initial flue gas taking in wind pipeline；
2) calculate waste heat boiler import flue gas enthalpy using the volume accounting of the vapor setting, calculating formula is：
Wherein,
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
hgk,inFor the dry air enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
3) waste heat boiler is single-pressure HGSR, calculates waste-heat boiler superheater using given vapor volume accounting and goes out
Mouthful flue gas enthalpy, calculating formula is：
Wherein,
HgrqFor waste-heat boiler superheater exiting flue gas enthalpy, kJ/Nm3；
hgk,grqFor the dry air enthalpy under waste-heat boiler superheater exit gas temperature, kJ/Nm3；
For the vapor enthalpy under waste-heat boiler superheater exit gas temperature, kJ/Nm3；
Or described waste heat boiler is double discard heat boilers, calculate waste heat boiler high pressure using given vapor volume accounting
Section superheater outlet flue gas enthalpy, calculating formula is：
Wherein,
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3；
hgk,grqFor the dry air enthalpy under waste heat boiler high pressure section superheater outlet flue-gas temperature, kJ/Nm3；
For the vapor enthalpy under waste heat boiler high pressure section superheater outlet flue-gas temperature, kJ/Nm3；
4) calculate the sintering circular-cooler waste heat boiler import flue gas total flow under standard state：
If waste heat boiler is single-pressure HGSR, calculating formula is：
Wherein,
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
DgrFor waste heat boiler superheat steam flow, kg/h；
hgrFor waste heat boiler superheated steam enthalpy, kJ/kg；
hbhFor waste heat boiler saturated vapor enthalpy, kJ/kg；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
HgrqFor waste-heat boiler superheater exiting flue gas enthalpy, kJ/Nm3；
If waste heat boiler is double discard heat boiler, calculating formula is：
Wherein,
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Dgr1For waste heat boiler high pressure section superheat steam flow, kg/h；
hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg；
hbh1For waste heat boiler high pressure section saturated vapor enthalpy, kJ/kg；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3；
5) calculate volume accounting k of vapor in the flue gas taking in wind pipelinejs, calculating formula is：
Wherein,
kjsVolume accounting for vapor in the flue gas taking in wind pipeline of calculating；
QlFor waste heat boiler effectively utilizes heat, kJ/h；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
For waste heat boiler errors；
hgk,inFor the dry air enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3；
For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3；
6) preset a threshold alpha, volume accounting k of the vapor obtaining will be calculatedjsVolume accounting k with the vapor setting
It is compared：
If | k-kjs|≤α, then obtain in the flue gas taking in wind pipeline under volume accounting k of vapor and standard state
Sintering circular-cooler waste heat boiler import flue gas total flow
If | k-kjs|>α, then by kjsTake vapor volume in flue gas in wind pipeline with the meansigma methodss of k as new setting
Accounting, return to step 1)；
According under the volume accounting of vapor in the flue gas taking in wind pipeline, sintering circular-cooler the first pipeline wind temperature
Dry air enthalpy under dry air enthalpy, sintering circular-cooler second pipe wind temperature, sintering circular-cooler first pipeline take pathogenic wind-warm
Vapor enthalpy under degree, the vapor enthalpy under sintering circular-cooler second pipe wind temperature, calculate and obtain sintering circular-cooler
First pipeline takes wind enthalpy and sintering circular-cooler second pipe to take wind enthalpy, and calculating formula is：
Wherein,
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler first pipeline3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler second pipe3；
K is the volume accounting of vapor in the flue gas taking in wind pipeline；
hgk,1For the dry air enthalpy under sintering circular-cooler the first pipeline wind temperature, kJ/Nm3；
hgk,2For the dry air enthalpy under sintering circular-cooler second pipe wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler the first pipeline wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler second pipe wind temperature, kJ/Nm3；
Wind enthalpy, sintering are taken according to sintering circular-cooler waste heat boiler import flue gas total flow, sintering circular-cooler first pipeline
Central cooler second pipe takes wind enthalpy, waste heat boiler import flue gas enthalpy, more than the sintering circular-cooler under iterative calculation standard state
Heat boiler first and second pipeline takes wind flow, concretely comprises the following steps：
1) sintering circular-cooler waste heat boiler first pipeline setting under a standard state takes wind flow
2) wind flow is taken according to sintering circular-cooler first pipeline under the standard state settingObtain under standard state
Sintering circular-cooler waste heat boiler second pipe takes wind flowUsing calculating formula be：
Wherein,
Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Take wind flow, Nm for sintering circular-cooler waste heat boiler first pipeline under standard state3/h；
3) according to sintering circular-cooler first pipeline obtained take wind enthalpy, sintering circular-cooler second pipe take wind enthalpy,
Sintering circular-cooler waste heat boiler second pipe under waste heat boiler import flue gas enthalpy, standard state takes wind flow and standard shape
Sintering circular-cooler waste heat boiler import flue gas total flow under state, calculates the sintering circular-cooler waste heat boiler first under standard state
Pipeline takes wind flowUsing calculating formula be：
Wherein,
Take wind flow for sintering circular-cooler waste heat boiler first pipeline under calculated standard state；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler first pipeline3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler second pipe3；
4) preset a threshold epsilon, take wind by calculating sintering circular-cooler waste heat boiler first pipeline under the standard state obtaining
Sintering circular-cooler waste heat boiler first pipeline under the standard state of flow and setting takes wind flowIt is compared：
IfSintering circular-cooler waste heat boiler first pipeline then obtaining under standard state takes wind flowAnd the sintering circular-cooler waste heat boiler second pipe under standard state takes wind flow
IfThen willWithMeansigma methodss cold as the sintered ring under the standard state of new setting
Machine waste heat boiler first pipeline takes wind flow, return to step 1)；
Wind flow is taken to calculate actual shape according to sintering circular-cooler waste heat boiler first and second pipeline under described standard state
Sintering circular-cooler waste heat boiler first and second pipeline under state takes the utilization calculating formula of wind flow to be：
Wherein,
V1Take wind flow, Nm for sintering circular-cooler waste heat boiler first pipeline under virtual condition3/h；
Take wind flow, Nm for sintering circular-cooler waste heat boiler first pipeline under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lTake wind pressure, Pa for sintering circular-cooler first pipeline；
tf,lFor sintering circular-cooler the first pipeline wind temperature, DEG C；
V2Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under virtual condition3/h；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
pf,2Take wind pressure, Pa for sintering circular-cooler second pipe；
tf,2For sintering circular-cooler second pipe wind temperature, DEG C；
For reaching above-mentioned purpose, the present invention provides a kind of pair to take wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measurement
Amount method, methods described includes：Obtain waste heat boiler high temperature section superheat steam flow, waste heat boiler high temperature section superheated steam enthalpy,
Waste heat boiler low-temperature zone superheat steam flow, waste heat boiler low-temperature zone superheated steam enthalpy, waste heat boiler import feedwater enthalpy, using obtaining
The data taking calculates waste heat boiler effectively utilizes heat；
Steam-laden pressure under the local atmospheric pressure of acquisition, relative humidity of atomsphere, ambient temperature, using the number obtaining
According to the absolute humidity calculating air, then calculate the volume of vapor in the flue gas taking in wind pipeline using the absolute humidity of air
Accounting；Or set the volume accounting of vapor in the flue gas taking in wind pipeline；
According to dry under the volume accounting of vapor in the flue gas taking in wind pipeline, sintering circular-cooler high temperature section wind temperature
Air enthalpy, under vapor enthalpy under sintering circular-cooler high temperature section wind temperature, sintering circular-cooler low-temperature zone wind temperature
Vapor enthalpy under dry air enthalpy, sintering circular-cooler low-temperature zone wind temperature, waste heat boiler high temperature overheater outlet cigarette
Vapor enthalpy under dry air enthalpy at a temperature of gas, waste heat boiler high temperature overheater exit gas temperature, waste heat boiler
Vapor enthalpy under dry air enthalpy under exit gas temperature, smoke temperature at outlet of waste heat boiler, calculates sintering circular-cooler
High temperature section take wind enthalpy, sintering circular-cooler low-temperature zone road take wind enthalpy, waste heat boiler high temperature overheater exiting flue gas enthalpy with
And heat boiler outlet flue gas enthalpy；
High according to waste heat boiler high temperature section superheat steam flow, waste heat boiler high temperature section superheated steam enthalpy, waste heat boiler
Temperature section saturated vapor enthalpy, sintering circular-cooler high temperature section take wind enthalpy, waste heat boiler high temperature overheater exiting flue gas enthalpy, meter
The sintering circular-cooler waste heat boiler high temperature section calculated under standard state takes wind flow；
Take wind flow and waste heat boiler effective according to the sintering circular-cooler waste heat boiler high temperature section under described standard state
Take wind enthalpy, sintering using heat and waste heat boiler errors, heat boiler outlet flue gas enthalpy, sintering circular-cooler high temperature section
Central cooler low-temperature zone takes wind enthalpy, and the sintering circular-cooler waste heat boiler low-temperature zone calculating under standard state takes wind flow；
Burning under wind flow, standard state is taken according to the sintering circular-cooler waste heat boiler high temperature section under described standard state
Knot central cooler waste heat boiler low-temperature zone takes wind flow, local atmospheric pressure, sintering circular-cooler high temperature section to take wind pressure, sintering circular-cooler
High temperature section wind temperature, sintering circular-cooler low-temperature zone take wind pressure, sintering circular-cooler low-temperature zone wind temperature, are calculated reality
Sintering circular-cooler waste heat boiler high temperature section under state takes the sintering circular-cooler waste heat boiler low temperature under wind flow and virtual condition
Section takes wind flow.
Preferably, a kind of pair takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, described calculating has
Imitate and using hot calculating formula be：
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein,
QlFor waste heat boiler effectively utilizes heat, kJ/h；
Dgr1For waste heat boiler high temperature section superheat steam flow, kg/h；
hgr1For waste heat boiler high temperature section superheated steam enthalpy, kJ/kg；
Dgr2For waste heat boiler low-temperature zone superheat steam flow, kg/h；
hgr2For waste heat boiler low-temperature zone superheated steam enthalpy, kJ/kg；
hgsFor waste heat boiler import feedwater enthalpy, kJ/kg.
Preferably, double take wind single channel sintering circular-cooler waste heat boiler to take wind flow flexible measurement method, waste heat boiler waste gas
It is directly discharged in air, then first obtain local atmospheric pressure, relative humidity of atomsphere, the steam-laden pressure under ambient temperature
Power, is then calculated the absolute humidity of air, and is taken in wind pipeline using the absolute humidity calculating of air using the data obtaining
The volume accounting of vapor in flue gas, calculating formula is respectively：
Wherein,
dkFor the absolute humidity of air, kg/kg (dry air)；
paFor local atmospheric pressure, Pa；
φ is relative humidity of atomsphere, %；
psFor the steam-laden pressure under ambient temperature, Pa；
Or described exhaust-heat boiler flue gas return air is to central cooler, then the volume accounting of vapor in the flue gas in wind pipeline is taken to adopt
Use setting value.
Preferably, a kind of pair takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, described calculating is burnt
Knot central cooler high temperature section takes wind enthalpy, sintering circular-cooler low-temperature zone to take wind enthalpy, waste heat boiler high temperature overheater exiting flue gas
The calculating formula of enthalpy and heat boiler outlet flue gas enthalpy is：
Wherein,
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler low-temperature zone3；
HgrqFor waste heat boiler high temperature overheater exiting flue gas enthalpy, kJ/Nm3；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
K is the volume accounting of vapor in the flue gas taking in wind pipeline；
hgk,1For the dry air enthalpy under sintering circular-cooler high temperature section wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler high temperature section road wind temperature, kJ/Nm3；
hgk,2For the dry air enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3；
hgk,grqFor the dry air enthalpy under waste heat boiler high temperature overheater exit gas temperature, kJ/Nm3；
For the vapor enthalpy under waste heat boiler high temperature overheater exit gas temperature, kJ/Nm3；
hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3；
For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3.
Preferably, a kind of pair takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, more than described basis
Heat boiler high temperature section superheat steam flow, waste heat boiler high temperature section superheated steam enthalpy, waste heat boiler high temperature section saturated vapor enthalpy
Value, sintering circular-cooler high temperature section take wind enthalpy, waste heat boiler high temperature overheater exiting flue gas enthalpy, calculate under standard state
Sintering circular-cooler waste heat boiler high temperature section takes wind flow, and calculating formula is：
Wherein,
Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
Dgr1For high pressure section superheat steam flow, kg/h；
hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg；
hbh1For waste heat boiler high pressure section saturated vapor enthalpy, kJ/kg；
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3.
Preferably, a kind of pair takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, described calculating mark
Sintering circular-cooler waste heat boiler low-temperature zone under quasi- state takes the calculating formula of wind flow to be：
Wherein,
Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
QlFor waste heat boiler effectively utilizes heat, kJ/h；
For waste heat boiler errors；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler low-temperature zone3.
Preferably, a kind of pair takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, described calculating is real
Sintering circular-cooler waste heat boiler high temperature section under the state of border takes the sintering circular-cooler waste heat boiler under wind flow and virtual condition low
Temperature section takes wind flow, and calculating formula is：
Wherein,
V1Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lTake wind pressure, Pa for sintering circular-cooler high temperature section
tf,lFor sintering circular-cooler high temperature section wind temperature, DEG C；
V2Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under virtual condition3/h；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
pf,2Take wind pressure, Pa for sintering circular-cooler low-temperature zone；
tf,2For sintering circular-cooler low-temperature zone wind temperature, DEG C.
The present invention is double to take wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, takes the wind dual pathways for double
Sintering circular-cooler waste heat boiler takes the measurement of wind flow, takes the wind dual pathways to sinter by waste heat boiler service data indirect gain is double
The straight length condition taking wind flow, not possessing required by flow measurement at the scene of central cooler waste heat boiler, and then lead to take wind
Flow cannot direct measurement or certainty of measurement cannot ensure in the case of especially effective, result can be the operation prison of waste heat boiler
Depending on providing infallible data with operation adjustment, there is important Practical significance.
Brief description
Fig. 1 is sintering circular-cooler waste heat boiler waste heat reclaiming process flow chart, A chassis traffic direction, and B feeds, 1 waste heat pot
Stove, 2 central cooler high temperature section, 3 central cooler low-temperature zone, 4 central cooler high temperature section take wind pipeline, and 5 central cooler low-temperature zone take wind pipeline, and 6
Waste heat boiler smoke discharging pipe.
Fig. 2 is the sintering circular-cooler waste heat reclaiming process flow chart using air return method for the waste heat boiler smoke evacuation；A chassis runs
Direction, B feeds, 1 waste heat boiler, 2 central cooler high temperature section, 3 central cooler low-temperature zone, and 4 central cooler high temperature section take wind pipeline, and 5 rings are cold
Machine low-temperature zone takes wind pipeline, 6 waste heat boiler smoke discharging pipes.
Fig. 3 is the sintering circular-cooler waste heat reclaiming process flow chart using in line mode for the waste heat boiler smoke evacuation；A chassis runs
Direction, B feeds, 1 waste heat boiler, 2 central cooler high temperature section, 3 central cooler low-temperature zone, and 4 central cooler high temperature section take wind pipeline, and 5 rings are cold
Machine low-temperature zone takes wind pipeline, 6 waste heat boiler smoke discharging pipes.
Specific embodiment
With reference to Figure of description, the present invention will be further described.
Embodiment one
Described first pipeline takes the corresponding high temperature section of wind flow to take wind flow, and second pipe takes the corresponding low-temperature zone of wind flow to take wind
Flow, the measuring method of employing concretely comprises the following steps：
1st, gather the service data of sintering circular-cooler waste heat boiler, including：Central cooler high temperature section wind temperature, central cooler are high
Temperature section takes wind pressure, central cooler low-temperature zone wind temperature, central cooler low-temperature zone to take wind pressure, atmospheric pressure, exhaust-heat boiler flue gas
Side operational factor is (for single-pressure HGSR, including waste heat boiler input gas temperature, waste-heat boiler superheater exiting flue gas temperature
Degree, smoke temperature at outlet of waste heat boiler；For double discard heat boilers, high including waste heat boiler input gas temperature, waste heat boiler
Pressure section superheater outlet flue-gas temperature, smoke temperature at outlet of waste heat boiler), waste heat boiler soda pop side operational factor is (for single pressure
Waste heat boiler, including superheat steam temperature, superheated steam pressure, superheat steam flow, drum pressure, feed temperature, feedwater pressure
Power, feedwater flow；For double discard heat boilers, including waste heat boiler high pressure section superheat steam temperature, waste heat boiler high pressure section mistake
Vapourss pressure, waste heat boiler high pressure section superheat steam flow, waste heat boiler low pressure stage superheat steam temperature, waste heat boiler low pressure
Section superheated steam pressure, waste heat boiler low pressure stage superheat steam flow, high pressure section drum pressure, waste heat boiler import feedwater temperature
Degree, waste heat boiler import feed pressure, waste heat boiler import feedwater flow).
2nd, the data that step 1 is obtained carries out pretreatment, processes data smoothing processing including bad point, obtains for solving
Sintering circular-cooler waste heat boiler takes the valid data of wind flow.
3rd, the valid data being obtained according to step 2, obtain sintering circular-cooler waste heat boiler and take wind flow, specifically include following
Step：
The 3.1 calculating hot Q of waste heat boiler effectively utilizesl：
3.1.1 for single-pressure HGSR：
Ql=Dgr(hgr-hgs)
Wherein, QlFor waste heat boiler effectively utilizes heat, kJ/h；DgrFor superheat steam flow, kg/h；hgrFor waste heat boiler mistake
Vapourss enthalpy, kJ/kg, calculated or tabled look-up by waste heat boiler superheated steam pressure and superheat steam temperature and obtain；hgsFor waste heat
Boiler feedwater enthalpy, kJ/kg, calculated or tabled look-up by waste heat boiler feed pressure and feed temperature and obtain.
3.1.2 for double discard heat boilers：
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs)
Wherein, QlFor waste heat boiler effectively utilizes heat, kJ/h；Dgr1For waste heat boiler high pressure section superheat steam flow, kg/
h；hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg, by waste heat boiler high pressure section superheated steam pressure and high pressure section
Superheat steam temperature calculates or tables look-up and obtains；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2For waste heat boiler
Low pressure stage superheated steam enthalpy, kJ/kg, calculated by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature
Or table look-up and obtain；hgsFor waste heat boiler import Enthalpy of Feed Water, kJ/kg, by waste heat boiler import feed pressure and feed temperature meter
Calculate or table look-up and obtain.
3.2 pass through iterative calculation solves more than volume accounting k taking vapor in flue gas in wind pipeline and sintering circular-cooler
Heat boiler import flue gas total flow
3.2.1 set volume accounting k of vapor in an initial flue gas taking in wind pipeline；
3.2.2 calculate waste heat boiler import flue gas enthalpy：
Wherein, HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；hgk,inFor doing under waste heat boiler input gas temperature
Air enthalpy, kJ/Nm3, calculated or tabled look-up by waste heat boiler input gas temperature and obtain；For waste heat boiler import flue gas
At a temperature of vapor enthalpy, kJ/Nm3, calculated or tabled look-up by waste heat boiler input gas temperature and obtain.
3.2.3 calculate waste-heat boiler superheater exiting flue gas enthalpy：
3.2.3.1 for single-pressure HGSR：
Wherein, HgrqFor waste-heat boiler superheater exiting flue gas enthalpy, kJ/Nm3；hgk,grqFor waste-heat boiler superheater outlet
Dry air enthalpy under flue-gas temperature, kJ/Nm3, calculated or tabled look-up by waste-heat boiler superheater exit gas temperature and obtain；For the vapor enthalpy under waste-heat boiler superheater exit gas temperature, kJ/Nm3, exported by waste-heat boiler superheater
Flue-gas temperature calculates or tables look-up and obtains.
3.2.3.2 for double discard heat boilers：
Wherein, HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3；hgk,grqFor waste heat boiler high pressure
Dry air enthalpy under section superheater outlet flue-gas temperature, kJ/Nm3, by waste heat boiler high pressure section superheater outlet flue-gas temperature
Calculate or table look-up and obtain；For the vapor enthalpy under waste heat boiler high pressure section superheater outlet flue-gas temperature, kJ/Nm3,
Calculated or tabled look-up by waste heat boiler high pressure section superheater outlet flue-gas temperature and obtain.
3.2.4 calculate the sintering circular-cooler waste heat boiler import flue gas total flow under standard state：
3.2.4.1 for single-pressure HGSR：
Wherein,For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；DgrFor overheated
Steam flow, kg/h；hgrFor waste heat boiler superheated steam enthalpy, kJ/kg, by waste heat boiler superheated steam pressure and superheated steam
Temperature computation or table look-up obtains；hbhFor waste heat boiler saturated vapor enthalpy, kJ/kg, calculated or looked into by drum pressure of exhaust-heat boiler
Table obtains；HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；HgrqFor waste-heat boiler superheater exiting flue gas enthalpy, kJ/
Nm3.
3.2.4.2 for double discard heat boilers：
Wherein,For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；Dgr1For high pressure
Section superheat steam flow, kg/h；hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg, by waste heat boiler high pressure section mistake
Vapourss pressure and high pressure section superheat steam temperature calculate or table look-up and obtain；hbh1For waste heat boiler high pressure section saturated vapor enthalpy,
KJ/kg, is calculated or tabled look-up and obtain by waste heat boiler high pressure section drum pressure；HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3.
3.2.5 solve volume accounting k of vapor in the flue gas taking in wind pipeline calculatingjs；
Wherein, kjsFor calculate the flue gas taking in wind pipeline in vapor volume accounting,；QlEffective for waste heat boiler
Using heat, kJ/h；For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；For waste heat pot
Stove errors, can be taken as setting value；hgk,inFor the dry air enthalpy under waste heat boiler input gas temperature, kJ/Nm3, by remaining
Heat boiler input gas temperature calculates or tables look-up and obtains；hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler,
kJ/Nm3, being calculated or tabled look-up by smoke temperature at outlet of waste heat boiler obtains；For the water under waste heat boiler input gas temperature
Steam enthalpy, kJ/Nm3, calculated or tabled look-up by waste heat boiler input gas temperature and obtain；For heat boiler outlet flue gas
At a temperature of vapor enthalpy, kJ/Nm3, being calculated or tabled look-up by smoke temperature at outlet of waste heat boiler obtains.
3.2.6 by volume accounting k of vapor in calculated for the step 3.2.5 flue gas taking in wind pipelinejsWith step
3.2.1 the k setting is contrasted：
If the difference of the two takes the volume of vapor in the flue gas in wind pipeline to account in the range of error setting, then output
Than the sintering circular-cooler waste heat boiler import flue gas total flow under k and standard state
If, the difference of the two not set in the range of, then by kjsWith the meansigma methodss of k as the new flue gas taking in airduct
The setting value of the volume accounting of middle vapor, then re-executes step 3.2.1～step 3.2.6.
3.3 calculate sintering circular-cooler high temperature section respectively takes wind enthalpy and sintering circular-cooler low-temperature zone to take wind enthalpy：
Wherein, HhTake wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；HlTake wind enthalpy for sintering circular-cooler low-temperature zone,
kJ/Nm3；K is the volume accounting of vapor in the flue gas taking in wind pipeline,；hgk,hFor sintering circular-cooler high temperature section wind temperature
Under dry air enthalpy, kJ/Nm3, calculated or tabled look-up and obtain by sintering circular-cooler high temperature section wind temperature；hgk,lCold for sintered ring
Dry air enthalpy under machine low-temperature zone wind temperature, kJ/Nm3, calculated or tabled look-up by sintering circular-cooler low-temperature zone wind temperature
Arrive；For the vapor enthalpy under sintering circular-cooler high temperature section wind temperature, kJ/Nm3, taken by sintering circular-cooler high temperature section
Air temperature calculates or tables look-up and obtains；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by burning
Knot central cooler low-temperature zone wind temperature calculates or tables look-up and obtains.
3.4 obtain the sintering circular-cooler waste heat boiler high temperature section under standard state by iterative calculation takes wind flow and sintering
Central cooler waste heat boiler low-temperature zone takes wind flow：
3.4.1 the sintering circular-cooler waste heat boiler high temperature section setting under an initial standard state takes wind flow
3.4.2 the sintering circular-cooler waste heat boiler low-temperature zone being calculated under standard state takes wind flow
Wherein,Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；For standard
Sintering circular-cooler waste heat boiler import flue gas total flow under state, Nm3/h；For the sintering circular-cooler waste heat under standard state
Boiler high temperature section takes wind flow, Nm3/h；
3.4.3 the sintering circular-cooler waste heat boiler high temperature section calculating under standard state takes wind flow
Wherein,Take wind flow for the sintering circular-cooler waste heat boiler high temperature section under calculated standard state,
Nm3/h；For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；For under standard state
Sintering circular-cooler waste heat boiler low-temperature zone take wind flow, Nm3/h；HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；HhFor
Sintering circular-cooler high temperature section takes wind enthalpy, kJ/Nm3；HlTake wind enthalpy, kJ/Nm for sintering circular-cooler low-temperature zone3.
3.4.4 the sintering circular-cooler waste heat boiler high temperature section under the standard state obtaining step 3.4.3 takes wind flowWith the supposition of step 3.4.1Contrasted：
If, the difference of the two set in the range of, then the sintering circular-cooler waste heat boiler high temperature under outputting standard state
Section takes wind flowTake wind flow with the sintering circular-cooler waste heat boiler low-temperature zone under standard state
If the difference of the two not in the range of setting, then willWithMeansigma methodss take wind as new high temperature section
Flow setting value, then re-executes step 3.4.1～step 3.4.4.
3.5 take wind flow using by iterating to calculate the sintering circular-cooler waste heat boiler high temperature section under the standard state obtaining
Take wind flow with the sintering circular-cooler waste heat boiler low-temperature zone under standard state, calculate the sintering circular-cooler waste heat under virtual condition
Boiler high temperature section takes the sintering circular-cooler waste heat boiler low-temperature zone under wind flow and virtual condition to take wind flow：
Wherein, VhTake wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；For standard
Sintering circular-cooler waste heat boiler high temperature section under state takes wind flow, Nm3/h；paFor local atmospheric pressure, Pa；pf,hCold for sintered ring
Machine high temperature section takes wind pressure, Pa；tf,hFor sintering circular-cooler high temperature section wind temperature, DEG C；VlCold for the sintered ring under virtual condition
Machine waste heat boiler low-temperature zone takes wind flow, Nm3/h；Take distinguished and admirable for the sintering circular-cooler waste heat boiler low-temperature zone under standard state
Amount, Nm3/h；pf,lTake wind pressure, Pa for sintering circular-cooler low-temperature zone；tf,lFor sintering circular-cooler low-temperature zone wind temperature, DEG C.
Embodiment two
Described first pipeline takes the corresponding low-temperature zone of wind flow to take wind flow, and second pipe takes the corresponding high temperature section of wind flow to take wind
Flow, the measuring method of employing concretely comprises the following steps：
1st, gather the service data of sintering circular-cooler waste heat boiler, including：Central cooler high temperature section wind temperature, central cooler are high
Temperature section takes wind pressure, central cooler low-temperature zone wind temperature, central cooler low-temperature zone to take wind pressure, exhaust-heat boiler flue gas side operational factor
(for single-pressure HGSR, including waste heat boiler input gas temperature, waste-heat boiler superheater exit gas temperature, waste heat pot
Outlet of still flue-gas temperature；For double discard heat boilers, including waste heat boiler input gas temperature, waste heat boiler high pressure section superheater
Exit gas temperature, smoke temperature at outlet of waste heat boiler), waste heat boiler soda pop side operational factor (for single-pressure HGSR, wraps
Include superheat steam temperature, superheated steam pressure, superheat steam flow, drum pressure, feed temperature, feed pressure, feedwater flow；
For double discard heat boilers, including waste heat boiler high pressure section superheat steam temperature, waste heat boiler high pressure section superheated steam pressure, remaining
Heat boiler high pressure section superheat steam flow, waste heat boiler low pressure stage superheat steam temperature, waste heat boiler low pressure stage superheated steam pressure
Power, waste heat boiler low pressure stage superheat steam flow, high pressure section drum pressure, waste heat boiler import feed temperature, waste heat boiler enter
Mouth feed pressure, waste heat boiler import feedwater flow).
2nd, to step 1 obtain input data carry out pretreatment, include bad point process data smoothing processing, obtain for
Solve the valid data that sintering circular-cooler waste heat boiler takes wind flow.
3rd, the valid data being obtained according to step 2, obtain sintering circular-cooler waste heat boiler and take wind flow, specifically include following
Step：
The 3.1 calculating hot Q of waste heat boiler effectively utilizesl：
3.1.1 for single-pressure HGSR：
Ql=Dgr(hgr-hgs)
Wherein, QlFor waste heat boiler effectively utilizes heat, kJ/h；DgrFor superheat steam flow, kg/h；hgrFor waste heat boiler mistake
Vapourss enthalpy, kJ/kg, calculated or tabled look-up by waste heat boiler superheated steam pressure and superheat steam temperature and obtain；hgsFor waste heat
Boiler feedwater enthalpy, kJ/kg, calculated or tabled look-up by waste heat boiler feed pressure and feed temperature and obtain.
3.1.2 for double discard heat boilers：
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs)
Wherein, QlFor waste heat boiler effectively utilizes heat, kJ/h；Dgr1For waste heat boiler high pressure section superheat steam flow, kg/
h；hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg, by waste heat boiler high pressure section superheated steam pressure and high pressure section
Superheat steam temperature calculates or tables look-up and obtains；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2For waste heat boiler
Low pressure stage superheated steam enthalpy, kJ/kg, calculated by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature
Or table look-up and obtain；hgsFor waste heat boiler import Enthalpy of Feed Water, kJ/kg, by waste heat boiler import feed pressure and feed temperature meter
Calculate or table look-up and obtain.
3.2 pass through volume accounting k and the sintering circular-cooler that iterative calculation solves vapor in the flue gas taking in wind pipeline
Waste heat boiler import flue gas total flow
3.2.1 set volume accounting k of vapor in an initial flue gas taking in wind pipeline；
3.2.2 calculate waste heat boiler import flue gas enthalpy：
Wherein, HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；hgk,inFor remaining
Dry air enthalpy under heat boiler input gas temperature, kJ/Nm3, calculated or tabled look-up by waste heat boiler input gas temperature and obtain；For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3, calculated by waste heat boiler input gas temperature or
Table look-up and obtain.
3.2.3 calculate waste-heat boiler superheater exiting flue gas enthalpy：
3.2.3.1 for single-pressure HGSR：
Wherein, HgrqFor waste-heat boiler superheater exiting flue gas enthalpy, kJ/
Nm3；hgk,grqFor the dry air enthalpy under waste-heat boiler superheater exit gas temperature, kJ/Nm3, gone out by waste-heat boiler superheater
Mouth flue-gas temperature calculates or tables look-up and obtains；For the vapor enthalpy under waste-heat boiler superheater exit gas temperature, kJ/
Nm3, calculated or tabled look-up by waste-heat boiler superheater exit gas temperature and obtain.
3.2.3.2 for double discard heat boilers：
Wherein, HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy,
kJ/Nm3；hgk,grqFor the dry air enthalpy under waste heat boiler high pressure section superheater outlet flue-gas temperature, kJ/Nm3, by waste heat boiler
High pressure section superheater outlet flue-gas temperature calculates or tables look-up and obtains；For waste heat boiler high pressure section superheater outlet flue gas temperature
Vapor enthalpy under degree, kJ/Nm3, calculated or tabled look-up and obtain by waste heat boiler high pressure section superheater outlet flue-gas temperature.
3.2.4 calculate the sintering circular-cooler waste heat boiler import flue gas total flow under standard state：
3.2.4.1 for single-pressure HGSR：
Wherein,Always flow for the sintering circular-cooler waste heat boiler import flue gas under standard state
Amount, Nm3/h；DgrFor superheat steam flow, kg/h；hgrFor waste heat boiler superheated steam enthalpy, kJ/kg, overheated by waste heat boiler
Steam pressure and superheat steam temperature calculate or table look-up and obtain；hbhFor waste heat boiler saturated vapor enthalpy, kJ/kg, by waste heat pot
Stove drum pressure calculates or tables look-up and obtains；HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；HgrqFor waste-heat boiler superheater
Exiting flue gas enthalpy, kJ/Nm3.
3.2.4.2 for double discard heat boilers：
Wherein,Total for the sintering circular-cooler waste heat boiler import flue gas under standard state
Flow, Nm3/h；Dgr1For high pressure section superheat steam flow, kg/h；hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/
Kg, is calculated or is tabled look-up by waste heat boiler high pressure section superheated steam pressure and high pressure section superheat steam temperature and obtain；hbh1For waste heat pot
Stove high pressure section saturated vapor enthalpy, kJ/kg, calculated or tabled look-up and obtain by waste heat boiler high pressure section drum pressure；HinFor waste heat pot
Stove import flue gas enthalpy, kJ/Nm3；HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3.
3.2.5 solve volume accounting k of vapor in the flue gas taking in wind pipeline calculatingjs：
Wherein, kjsSteam for water in the flue gas taking in wind pipeline of calculating
The volume accounting of gas,；QlFor waste heat boiler effectively utilizes heat, kJ/h；For the sintering circular-cooler waste heat pot under standard state
Stove import flue gas total flow, Nm3/h；For waste heat boiler errors, can be taken as setting value；hgk,inFor waste heat boiler import cigarette
Dry air enthalpy at a temperature of gas, kJ/Nm3, calculated or tabled look-up by waste heat boiler input gas temperature and obtain；hgk,outFor waste heat
Dry air enthalpy under boiler export flue-gas temperature, kJ/Nm3, being calculated or tabled look-up by smoke temperature at outlet of waste heat boiler obtains；For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3, calculated by waste heat boiler input gas temperature or
Table look-up and obtain；For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet flue gas
Temperature computation or table look-up obtains.
3.2.6 by volume accounting k of vapor in calculated for the step 3.2.5 flue gas taking in wind pipelinejsWith step
3.2.1 the k setting is contrasted：
If the difference of the two takes the volume of vapor in the flue gas in wind pipeline to account in the range of error setting, then output
Than the sintering circular-cooler waste heat boiler import flue gas total flow under k and standard state
If, the difference of the two not set in the range of, then by kjsWith the meansigma methodss of k as the new flue gas taking in airduct
The setting value of the volume accounting of middle vapor, then re-executes step 3.2.1～step 3.2.6.
3.3 calculating sintering circular-cooler high temperature section take wind enthalpy and sintering circular-cooler low-temperature zone to take wind enthalpy：
Wherein, HhTake wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；HlTake wind enthalpy for sintering circular-cooler low-temperature zone,
kJ/Nm3；K is the volume accounting of vapor in the flue gas taking in wind pipeline,；hgk,hFor sintering circular-cooler high temperature section wind temperature
Under dry air enthalpy, kJ/Nm3, calculated or tabled look-up and obtain by sintering circular-cooler high temperature section wind temperature；hgk,lCold for sintered ring
Dry air enthalpy under machine low-temperature zone wind temperature, kJ/Nm3, calculated or tabled look-up by sintering circular-cooler low-temperature zone wind temperature
Arrive；For the vapor enthalpy under sintering circular-cooler high temperature section wind temperature, kJ/Nm3, taken by sintering circular-cooler high temperature section
Air temperature calculates or tables look-up and obtains；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by burning
Knot central cooler low-temperature zone wind temperature calculates or tables look-up and obtains.
3.4 by iterative calculation obtain standard state under sintering circular-cooler waste heat boiler high temperature section and low-temperature zone take distinguished and admirable
Amount：
3.4.1 the sintering circular-cooler waste heat boiler low-temperature zone setting under initial standard state takes wind flow
3.4.2 the sintering circular-cooler waste heat boiler high temperature section being calculated under standard state takes wind flow
Wherein,Take wind flow for the sintering circular-cooler waste heat boiler low-temperature zone under standard state,
Nm3/h；For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；For under standard state
Sintering circular-cooler waste heat boiler high temperature section takes wind flow, Nm3/h.
3.4.3 the sintering circular-cooler waste heat boiler low-temperature zone calculating under standard state takes wind flow
Wherein,For the sintering circular-cooler waste heat pot under calculated standard state
Stove low-temperature zone takes wind flow, Nm3/h；For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/
h；Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；HinFor waste heat boiler import flue gas
Enthalpy, kJ/Nm3；HhTake wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；HlTake wind enthalpy for sintering circular-cooler low-temperature zone,
kJ/Nm3.
3.4.4 the sintering circular-cooler waste heat boiler low-temperature zone under the standard state obtaining step 3.4.3 takes wind flowWith the supposition of step 3.4.1Contrasted：
If, the difference of the two set in the range of, then the sintering circular-cooler waste heat boiler low temperature under outputting standard state
Section takes wind flowTake wind flow with the sintering circular-cooler waste heat boiler high temperature section under standard state
If the difference of the two not in the range of setting, then willWithMeansigma methodss take wind as new low-temperature zone
Flow setting value, then re-executes step 3.4.1～3.4.4.
3.5 take wind flow using by iterating to calculate the sintering circular-cooler waste heat boiler high temperature section under the standard state obtaining
Take wind flow with the sintering circular-cooler waste heat boiler low-temperature zone under standard state, calculate the sintering circular-cooler waste heat under virtual condition
Boiler high temperature section takes the sintering circular-cooler waste heat boiler low-temperature zone under wind flow and virtual condition to take wind flow：
Wherein, VhTake wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；For standard
Sintering circular-cooler waste heat boiler high temperature section under state takes wind flow, Nm3/h；Pa is local atmospheric pressure, Pa；pf,hFor sintered ring
Cold high temperature section takes wind pressure, Pa；tf,hFor sintering circular-cooler high temperature section wind temperature, DEG C；VlFor the sintered ring under virtual condition
Cold waste heat boiler low-temperature zone takes wind flow, Nm3/h；Vl 0Take wind for the sintering circular-cooler waste heat boiler low-temperature zone under standard state
Flow, Nm3/h；pf,lTake wind pressure, Pa for sintering circular-cooler low-temperature zone；tf,lFor sintering circular-cooler low-temperature zone wind temperature, DEG C.
Embodiment three,
In the present embodiment, a kind of double take wind dual pathways sintering circular-cooler waste heat boiler take distinguished and admirable measuring method, specifically
For：
1st, gather the service data of sintering circular-cooler waste heat boiler, including：Central cooler high temperature section wind temperature, central cooler are high
Temperature section takes wind pressure, central cooler low-temperature zone wind temperature, central cooler low-temperature zone to take wind pressure, exhaust-heat boiler flue gas side operational factor
(including waste heat boiler high pressure section superheater outlet flue-gas temperature, smoke temperature at outlet of waste heat boiler), waste heat boiler soda pop side fortune
Line parameter (includes waste heat boiler high pressure section superheat steam temperature, waste heat boiler high pressure section superheated steam pressure, waste heat boiler high pressure
Section superheat steam flow, waste heat boiler low pressure stage superheat steam temperature, waste heat boiler low pressure stage superheated steam pressure, waste heat boiler
Low pressure stage superheat steam flow, high pressure section drum pressure, waste heat boiler import feed temperature, waste heat boiler import feed pressure,
Waste heat boiler import feedwater flow), atmospheric pressure.
2nd, to step 1 obtain input data carry out pretreatment, include bad point process data smoothing processing, obtain for
Solve the valid data that sintering circular-cooler waste heat boiler takes wind flow.
3rd, the valid data being obtained according to step 2, obtain sintering circular-cooler waste heat boiler and take wind flow, specifically include following
Step：
The 3.1 calculating hot Q of waste heat boiler effectively utilizesl：
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs)
Wherein, QlFor waste heat boiler effectively utilizes heat, kJ/h；Dgr1For waste heat boiler high pressure section superheat steam flow, kg/
h；hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg, by waste heat boiler high pressure section superheated steam pressure and high pressure section mistake
Vapourss temperature is tabled look-up and is obtained；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2For waste heat boiler low pressure stage mistake
Vapourss enthalpy, kJ/kg, is tabled look-up and is obtained by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature；hgsFor
Waste heat boiler import feedwater enthalpy, kJ/kg, is tabled look-up by waste heat boiler import feed pressure and waste heat boiler import feed temperature
Arrive；
The volume accounting of vapor in 3.2 flue gases taking in wind pipeline：
If 3.2.1 the waste gas of the exclusion of waste heat boiler is back to central cooler through circulating fan, set the cigarette taking in wind pipeline
The volume accounting of vapor in gas；
If the waste gas that 3.2.2 waste heat boiler is discharged is directly discharged in air, first calculate the absolute humidity d of airk, then
Absolute humidity d using the air tried to achievekCalculate volume accounting k of vapor in the flue gas taking in wind pipeline, calculating formula is respectively
For：
Wherein, dkFor the absolute humidity of air, kg/kg (dry air)；paFor local atmospheric pressure, Pa；φ is that air is relative
Humidity, %；psFor the steam-laden pressure under ambient temperature, Pa, according to ambient temperature t0Look into vapor table to obtain；K is to take wind
The volume accounting of vapor in flue gas in pipeline,.
3.3 calculate sintering circular-cooler high temperature section respectively takes wind enthalpy, sintering circular-cooler low-temperature zone to take wind enthalpy, waste heat boiler
High pressure section superheater outlet flue gas enthalpy and heat boiler outlet flue gas enthalpy：
Wherein, H1Take wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；H2Take wind enthalpy for sintering circular-cooler low-temperature zone,
kJ/Nm3；HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3；HoutFor heat boiler outlet flue gas enthalpy,
kJ/Nm3；K is the volume accounting (can adopt setting value) of vapor in the flue gas taking in wind pipeline,；hgk,hFor sintering circular-cooler
Dry air enthalpy under high temperature section wind temperature, kJ/Nm3, tabled look-up by sintering circular-cooler high temperature section wind temperature and obtain；For
Vapor enthalpy under sintering circular-cooler high temperature section wind temperature, kJ/Nm3, tabled look-up by sintering circular-cooler high temperature section wind temperature
Obtain；hgk,2For the dry air enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, taken by sintering circular-cooler low-temperature zone
Air temperature is tabled look-up and is obtained；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by sintered ring
Cold low-temperature zone wind temperature is tabled look-up and is obtained；hgk,grqFor the dry air under waste heat boiler high pressure section superheater outlet flue-gas temperature
Enthalpy, kJ/Nm3, tabled look-up by waste heat boiler high pressure section superheater outlet flue-gas temperature and obtain；For waste heat boiler high pressure section
Vapor enthalpy under superheater outlet flue-gas temperature, kJ/Nm3, looked into by waste heat boiler high pressure section superheater outlet flue-gas temperature
Table obtains；hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet flue gas temperature
Degree is tabled look-up and is obtained；For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet cigarette
Temperature degree is tabled look-up and is obtained.
Sintering circular-cooler waste heat boiler high temperature section under 3.4 calculating standard state takes wind flow：
Wherein,Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；Dgr1For high pressure
Section superheat steam flow, kg/h；hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg, by waste heat boiler high pressure section mistake
Vapourss pressure and high pressure section superheat steam temperature are tabled look-up and are obtained；hbh1For waste heat boiler high pressure section saturated vapor enthalpy, kJ/kg,
Tabled look-up by waste heat boiler high pressure section drum pressure and obtain；HhTake wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；HgrqFor waste heat
Boiler High Pressure section superheater outlet flue gas enthalpy, kJ/Nm3.
Sintering circular-cooler waste heat boiler low-temperature zone under 3.5 calculating standard state takes wind flow
Wherein,Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；QlFor waste heat
Boiler effectively utilizes heat, kJ/h；For waste heat boiler errors, can be taken as setting value；For the sintered ring under standard state
Cold waste heat boiler high temperature section takes wind flow, Nm3/h；HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；H1Cold for sintered ring
Machine high temperature section takes wind enthalpy, kJ/Nm3；H2Take wind enthalpy, kJ/Nm for sintering circular-cooler low-temperature zone3.
The sintering circular-cooler waste heat boiler high temperature section that 3.6 are calculated under virtual condition takes wind flow V1Under virtual condition
Sintering circular-cooler waste heat boiler low-temperature zone take wind flow V2：
Wherein, V1Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；For standard
Sintering circular-cooler waste heat boiler high temperature section under state takes wind flow, Nm3/h；paFor local atmospheric pressure, Pa；pf,1Cold for sintered ring
Machine high temperature section takes wind pressure, Pa；tf,1For sintering circular-cooler high temperature section wind temperature, DEG C；V2Cold for the sintered ring under virtual condition
Machine waste heat boiler low-temperature zone takes wind flow, Nm3/h；Take distinguished and admirable for the sintering circular-cooler waste heat boiler low-temperature zone under standard state
Amount, Nm3/h；pf,2Take wind pressure, Pa for sintering circular-cooler low-temperature zone；tf,2For sintering circular-cooler low-temperature zone wind temperature, DEG C.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with basis
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the protection domain that claim is defined.
Claims (10)
1. a kind of double take wind single channel sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method it is characterised in that：Methods described
Including on selection sintering circular-cooler, two wherein taking in wind pipeline take wind pipeline is the first pipeline, and another takes airduct
Road is second pipe；
Corresponding first pipeline of wind flow that takes of the wherein first pipeline takes wind flow, and the wind flow that takes of second pipe corresponds to second pipe
Take wind flow, concrete measuring method is：
The superheat steam flow of acquisition waste heat boiler, superheated steam enthalpy, feedwater enthalpy, calculate waste heat pot using the described data obtaining
The effectively utilizes heat of stove；
According to exhaust-heat boiler flue gas side operational factor and waste heat boiler soda pop side operational factor, iterate to calculate acquisition and take in wind pipeline
Flue gas in the volume accounting of vapor and sintering circular-cooler waste heat boiler import flue gas total flow；
According to the dry sky under the volume accounting of vapor in the flue gas taking in wind pipeline, sintering circular-cooler the first pipeline wind temperature
Under dry air enthalpy under gas enthalpy, sintering circular-cooler second pipe wind temperature, sintering circular-cooler the first pipeline wind temperature
Vapor enthalpy, the vapor enthalpy under sintering circular-cooler second pipe wind temperature, calculate and obtain sintering circular-cooler first
Pipeline takes wind enthalpy and sintering circular-cooler second pipe to take wind enthalpy；
Take wind enthalpy, sintered ring cold according to sintering circular-cooler waste heat boiler import flue gas total flow, sintering circular-cooler first pipeline
Machine second pipe takes wind enthalpy, waste heat boiler import flue gas enthalpy, the sintering circular-cooler waste heat pot under iterative calculation standard state
Stove first and second pipeline takes wind flow；
Wind flow, local atmospheric pressure are taken according to sintering circular-cooler waste heat boiler first and second pipeline under described standard state, burns
Knot central cooler first and second pipeline takes wind pressure and sintering circular-cooler first and second pipeline wind temperature, calculates under virtual condition
Sintering circular-cooler waste heat boiler first and second pipeline takes wind flow.
2. a kind of pair according to claim 1 takes wind single channel sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method,
It is characterized in that, waste heat boiler is single-pressure HGSR, and the calculating formula obtaining waste heat boiler effectively utilizes heat is：
Ql=Dgr(hgr-hgs), wherein,
QlFor waste heat boiler effectively utilizes heat, kJ/h；
DgrFor superheat steam flow, kg/h；
hgrFor waste heat boiler superheated steam enthalpy, kJ/kg；
hgsFor waste heat boiler Enthalpy of Feed Water, kJ/kg.
Or waste heat boiler is double discard heat boiler, the calculating formula obtaining the effectively utilizes heat of waste heat boiler is：
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein,
QlFor waste heat boiler effectively utilizes heat, kJ/h；
Dgr1For waste heat boiler high pressure section superheat steam flow, kg/h；
hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg；
Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；
hgr2For waste heat boiler low pressure stage superheated steam enthalpy, kJ/kg；
hgsFor waste heat boiler import Enthalpy of Feed Water, kJ/kg.
According to exhaust-heat boiler flue gas side operational factor and waste heat boiler soda pop side operational factor, iterative calculation takes the cigarette in wind pipeline
In gas, the volume accounting of vapor and sintering circular-cooler waste heat boiler import flue gas total flow, concretely comprise the following steps：
1) set volume accounting k of vapor in an initial flue gas taking in wind pipeline；
2) calculate waste heat boiler import flue gas enthalpy using the volume accounting of the vapor setting, calculating formula is：
Wherein,
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
hgk,inFor the dry air enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
3) waste heat boiler is single-pressure HGSR, calculates waste-heat boiler superheater outlet cigarette using given vapor volume accounting
Gas enthalpy, calculating formula is：
Wherein,
HgrqFor waste-heat boiler superheater exiting flue gas enthalpy, kJ/Nm3；
hgk,grqFor the dry air enthalpy under waste-heat boiler superheater exit gas temperature, kJ/Nm3；
For the vapor enthalpy under waste-heat boiler superheater exit gas temperature, kJ/Nm3；
Or waste heat boiler is double discard heat boiler, calculate waste heat boiler high pressure section superheater using given vapor volume accounting
Exiting flue gas enthalpy, calculating formula is：
Wherein,
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3；
hgk,grqFor the dry air enthalpy under waste heat boiler high pressure section superheater outlet flue-gas temperature, kJ/Nm3；
For the vapor enthalpy under waste heat boiler high pressure section superheater outlet flue-gas temperature, kJ/Nm3；
4) calculate the sintering circular-cooler waste heat boiler import flue gas total flow under standard state：
Waste heat boiler is single-pressure HGSR, and calculating formula is：
Wherein,
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
DgrFor waste heat boiler superheat steam flow, kg/h；
hgrFor waste heat boiler superheated steam enthalpy, kJ/kg；
hbhFor waste heat boiler saturated vapor enthalpy, kJ/kg；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
HgrqFor waste-heat boiler superheater exiting flue gas enthalpy, kJ/Nm3；
Or waste heat boiler is double discard heat boiler, calculating formula is：
Wherein,
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Dgr1For waste heat boiler high pressure section superheat steam flow, kg/h；
hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg；
hbh1For waste heat boiler high pressure section saturated vapor enthalpy, kJ/kg；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3；
5) calculate volume accounting k of vapor in the flue gas taking in wind pipelinejs, calculating formula is：
Wherein,
kjsVolume accounting for vapor in the flue gas taking in wind pipeline of calculating；
QlFor waste heat boiler effectively utilizes heat, kJ/h；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
For waste heat boiler errors；
hgk,inFor the dry air enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3；
For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3；
For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3；
6) preset a threshold alpha, volume accounting k of the vapor obtaining will be calculatedjsCarry out with volume accounting k of the vapor setting
Relatively：
If | k-kjs|≤α, then obtain volume accounting k of vapor in the flue gas taking in wind pipeline and the sintering under standard state
Central cooler waste heat boiler import flue gas total flow
If | k-kjs|>α, then by kjsTake vapor volume accounting in flue gas in wind pipeline with the meansigma methodss of k as new setting,
Return to step 1)；
According to the dry sky under the volume accounting of vapor in the flue gas taking in wind pipeline, sintering circular-cooler the first pipeline wind temperature
Under dry air enthalpy under gas enthalpy, sintering circular-cooler second pipe wind temperature, sintering circular-cooler the first pipeline wind temperature
Vapor enthalpy, the vapor enthalpy under sintering circular-cooler second pipe wind temperature, calculate and obtain sintering circular-cooler first
Pipeline takes wind enthalpy and sintering circular-cooler second pipe to take wind enthalpy, and calculating formula is：
Wherein,
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler first pipeline3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler second pipe3；
K is the volume accounting of vapor in the flue gas taking in wind pipeline；
hgk,1For the dry air enthalpy under sintering circular-cooler the first pipeline wind temperature, kJ/Nm3；
hgk,2For the dry air enthalpy under sintering circular-cooler second pipe wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler the first pipeline wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler second pipe wind temperature, kJ/Nm3；
Take wind enthalpy, sintered ring cold according to sintering circular-cooler waste heat boiler import flue gas total flow, sintering circular-cooler first pipeline
Machine second pipe takes wind enthalpy, waste heat boiler import flue gas enthalpy, the sintering circular-cooler waste heat pot under iterative calculation standard state
Stove first and second pipeline takes wind flow, concretely comprises the following steps：
1) sintering circular-cooler waste heat boiler first pipeline setting under a standard state takes wind flow V1 0；
2) wind flow V is taken according to sintering circular-cooler first pipeline under the standard state setting1 0Obtain the sintering under standard state
Central cooler waste heat boiler second pipe takes wind flowUsing calculating formula be：
Wherein,
Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Vl 0Take wind flow, Nm for sintering circular-cooler waste heat boiler first pipeline under standard state3/h；
3) wind enthalpy, sintering circular-cooler second pipe is taken to take wind enthalpy, waste heat according to sintering circular-cooler first pipeline obtained
Sintering circular-cooler waste heat boiler second pipe under boiler inlet flue gas enthalpy, standard state takes under wind flow and standard state
Sintering circular-cooler waste heat boiler import flue gas total flow, calculate standard state under sintering circular-cooler waste heat boiler first pipeline
Take wind flowUsing calculating formula be：
Wherein,
Take wind flow, Nm for sintering circular-cooler waste heat boiler first pipeline under calculated standard state3/h；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler first pipeline3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler second pipe3；
4) preset a threshold epsilon, take wind flow by calculating sintering circular-cooler waste heat boiler first pipeline under the standard state obtainingTake wind flow V with sintering circular-cooler waste heat boiler first pipeline under the standard state setting1 0It is compared：
IfThen sintering circular-cooler waste heat boiler first pipeline under outputting standard state takes wind flow V1 0With
And the sintering circular-cooler waste heat boiler second pipe under standard state takes wind flow
IfThen willAnd V1 0Meansigma methodss as the sintering circular-cooler under the standard state of new setting
Waste heat boiler first pipeline takes wind flow, return to step 1)；
Wind flow is taken to calculate under virtual condition according to sintering circular-cooler waste heat boiler first and second pipeline under described standard state
Sintering circular-cooler waste heat boiler first and second pipeline take the utilization calculating formula of wind flow to be：
Wherein,
V1Take wind flow, Nm for sintering circular-cooler waste heat boiler first pipeline under virtual condition3/h；
V1 0Take wind flow, Nm for sintering circular-cooler waste heat boiler first pipeline under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lTake wind pressure, Pa for sintering circular-cooler first pipeline；
tf,1For sintering circular-cooler the first pipeline wind temperature, DEG C；
V2Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under virtual condition3/h；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
pf,2Take wind pressure, Pa for sintering circular-cooler second pipe；
tf,2For sintering circular-cooler second pipe wind temperature, DEG C.
3. a kind of double take wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method it is characterised in that：
Obtain waste heat boiler high temperature section superheat steam flow, waste heat boiler high temperature section superheated steam enthalpy, waste heat boiler low-temperature zone mistake
Vapourss flow, waste heat boiler low-temperature zone superheated steam enthalpy, waste heat boiler import feedwater enthalpy, calculate waste heat using the data obtaining
Boiler effectively utilizes heat；
Steam-laden pressure under the local atmospheric pressure of acquisition, relative humidity of atomsphere, ambient temperature, using the data meter obtaining
Calculate the absolute humidity of air, calculate the volume accounting of vapor in the flue gas taking in wind pipeline using the absolute humidity of air；Or
Set the volume accounting of vapor in the flue gas taking in wind pipeline；
According to the dry air under the volume accounting of vapor in the flue gas taking in wind pipeline, sintering circular-cooler high temperature section wind temperature
Enthalpy, the vapor enthalpy under sintering circular-cooler high temperature section wind temperature, the dry sky under sintering circular-cooler low-temperature zone wind temperature
Vapor enthalpy under gas enthalpy, sintering circular-cooler low-temperature zone wind temperature, waste heat boiler high temperature overheater exiting flue gas temperature
Dry air enthalpy under degree, the vapor enthalpy under waste heat boiler high temperature overheater exit gas temperature, heat boiler outlet
Vapor enthalpy under dry air enthalpy under flue-gas temperature, smoke temperature at outlet of waste heat boiler, calculates sintering circular-cooler high temperature
Section takes wind enthalpy, sintering circular-cooler low-temperature zone road to take wind enthalpy, waste heat boiler high temperature overheater exiting flue gas enthalpy and remaining
Heat boiler exiting flue gas enthalpy；
According to waste heat boiler high temperature section superheat steam flow, waste heat boiler high temperature section superheated steam enthalpy, waste heat boiler high temperature section
Saturated vapor enthalpy, sintering circular-cooler high temperature section take wind enthalpy, waste heat boiler high temperature overheater exiting flue gas enthalpy, calculate mark
Sintering circular-cooler waste heat boiler high temperature section under quasi- state takes wind flow；
Wind flow and waste heat boiler effectively utilizes are taken according to the sintering circular-cooler waste heat boiler high temperature section under described standard state
Heat and waste heat boiler errors, heat boiler outlet flue gas enthalpy, sintering circular-cooler high temperature section take wind enthalpy, sintered ring cold
Machine low-temperature zone takes wind enthalpy, and the sintering circular-cooler waste heat boiler low-temperature zone calculating under standard state takes wind flow；
Sintered ring under wind flow, standard state is taken according to the sintering circular-cooler waste heat boiler high temperature section under described standard state
Cold waste heat boiler low-temperature zone takes wind flow, local atmospheric pressure, sintering circular-cooler high temperature section to take wind pressure, sintering circular-cooler high temperature
Section wind temperature, sintering circular-cooler low-temperature zone take wind pressure, sintering circular-cooler low-temperature zone wind temperature, are calculated virtual condition
Under sintering circular-cooler waste heat boiler high temperature section take the sintering circular-cooler waste heat boiler low-temperature zone under wind flow and virtual condition to take
Wind flow.
4. a kind of pair according to claim 3 takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method,
It is characterized in that, the described hot calculating formula of effectively utilizes that calculates is：
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein,
QlFor waste heat boiler effectively utilizes heat, kJ/h；
Dgr1For waste heat boiler high temperature section superheat steam flow, kg/h；
hgr1For waste heat boiler high temperature section superheated steam enthalpy, kJ/kg；
Dgr2For waste heat boiler low-temperature zone superheat steam flow, kg/h；
hgr2For waste heat boiler low-temperature zone superheated steam enthalpy, kJ/kg；
hgsFor waste heat boiler import feedwater enthalpy, kJ/kg.
5. a kind of pair according to claim 3 takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method,
It is characterized in that, the steam-laden pressure under described acquisition locality atmospheric pressure, relative humidity of atomsphere, ambient temperature, utilize
The data obtaining calculates the absolute humidity of air, and calculating formula is：
Wherein,
dkFor air absolute humidity, kg/kg (dry air)；
paFor local atmospheric pressure, Pa；
φ is relative humidity of atomsphere, %；
psFor the steam-laden pressure under ambient temperature, Pa.
6. double according to claim root 3 take wind single channel sintering circular-cooler waste heat boiler to take wind flow flexible measurement method,
It is characterized in that, the described absolute humidity using air calculates the volume accounting taking vapor in wind pipeline, and calculating formula is：
Wherein,
dkFor air absolute humidity, kg/kg (dry air).
7. a kind of pair according to claim 3 takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method,
It is characterized in that, described calculating sintering circular-cooler high temperature section takes wind enthalpy, sintering circular-cooler low-temperature zone to take wind enthalpy, waste heat boiler
The calculating formula of high temperature overheater exiting flue gas enthalpy and heat boiler outlet flue gas enthalpy is：
Wherein,
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler low-temperature zone3；
HgrqFor waste heat boiler high temperature overheater exiting flue gas enthalpy, kJ/Nm3；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
K is the volume accounting of vapor in the flue gas taking in wind pipeline；
hgk,1For the dry air enthalpy under sintering circular-cooler high temperature section wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler high temperature section road wind temperature, kJ/Nm3；
hgk,2For the dry air enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3；
hgk,grqFor the dry air enthalpy under waste heat boiler high temperature overheater exit gas temperature, kJ/Nm3；
For the vapor enthalpy under waste heat boiler high temperature overheater exit gas temperature, kJ/Nm3；
hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3；
For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3.
8. a kind of pair according to claim 3 takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method,
It is characterized in that, described according to waste heat boiler high temperature section superheat steam flow, waste heat boiler high temperature section superheated steam enthalpy, waste heat
Boiler high temperature section saturated vapor enthalpy, sintering circular-cooler high temperature section take wind enthalpy, waste heat boiler high temperature overheater exiting flue gas
Enthalpy, the sintering circular-cooler waste heat boiler high temperature section calculating under standard state takes wind flow, and calculating formula is：
Wherein,
V1 0Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
Dgr1For high pressure section superheat steam flow, kg/h；
hgr1For waste heat boiler high pressure section superheated steam enthalpy, kJ/kg；
hbh1For waste heat boiler high pressure section saturated vapor enthalpy, kJ/kg；
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3.
9. a kind of pair according to claim 3 takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method,
It is characterized in that, the described sintering circular-cooler waste heat boiler low-temperature zone calculating under standard state takes the calculating formula of wind flow to be：
Wherein,
Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
QlFor waste heat boiler effectively utilizes heat, kJ/h；
For waste heat boiler errors；
V1 0Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1Take wind enthalpy, kJ/Nm for sintering circular-cooler high temperature section3；
H2Take wind enthalpy, kJ/Nm for sintering circular-cooler low-temperature zone3.
10. a kind of pair according to claim 3 takes wind dual pathways sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method,
It is characterized in that, the described sintering circular-cooler waste heat boiler high temperature section calculating under virtual condition takes under wind flow and virtual condition
Sintering circular-cooler waste heat boiler low-temperature zone takes wind flow, and calculating formula is：
Wherein,
V1Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；
V1 0Take wind flow, Nm for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lTake wind pressure, Pa for sintering circular-cooler high temperature section；
tf,lFor sintering circular-cooler high temperature section wind temperature, DEG C；
V2Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under virtual condition3/h；
Take wind flow, Nm for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
pf,2Take wind pressure, Pa for sintering circular-cooler low-temperature zone；
tf,2For sintering circular-cooler low-temperature zone wind temperature, DEG C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN101806230A (en) * | 2010-03-19 | 2010-08-18 | 湖南永清环保股份有限公司 | System and method for using sintering waste heat to generate electricity |
| CN202350554U (en) * | 2011-11-08 | 2012-07-25 | 大连易世达新能源发展股份有限公司 | Waste heat power generation device capable of extracting multi-level waste gases from sintering machines and cooling machines in steel and iron works |
| CN102748958A (en) * | 2012-07-19 | 2012-10-24 | 湖南永清环保股份有限公司 | Waste heat utilization system for using waste heat of sintering flue gas by the aid of single-pressure double-channel waste heat boiler |
| JP2013002724A (en) * | 2011-06-16 | 2013-01-07 | Jp Steel Plantech Co | Waste heat recovery equipment, waste heat recovery method, and sintering machine system |
| EP2711656A1 (en) * | 2012-09-24 | 2014-03-26 | Siemens VAI Metals Technologies GmbH | Sintering assembly with return of waste heat air to the sintering belt |
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| CN101806230A (en) * | 2010-03-19 | 2010-08-18 | 湖南永清环保股份有限公司 | System and method for using sintering waste heat to generate electricity |
| JP2013002724A (en) * | 2011-06-16 | 2013-01-07 | Jp Steel Plantech Co | Waste heat recovery equipment, waste heat recovery method, and sintering machine system |
| CN202350554U (en) * | 2011-11-08 | 2012-07-25 | 大连易世达新能源发展股份有限公司 | Waste heat power generation device capable of extracting multi-level waste gases from sintering machines and cooling machines in steel and iron works |
| CN102748958A (en) * | 2012-07-19 | 2012-10-24 | 湖南永清环保股份有限公司 | Waste heat utilization system for using waste heat of sintering flue gas by the aid of single-pressure double-channel waste heat boiler |
| EP2711656A1 (en) * | 2012-09-24 | 2014-03-26 | Siemens VAI Metals Technologies GmbH | Sintering assembly with return of waste heat air to the sintering belt |
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