CN106440834B - A kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method - Google Patents

A kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method Download PDF

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CN106440834B
CN106440834B CN201610890347.7A CN201610890347A CN106440834B CN 106440834 B CN106440834 B CN 106440834B CN 201610890347 A CN201610890347 A CN 201610890347A CN 106440834 B CN106440834 B CN 106440834B
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heat boiler
waste heat
enthalpy
cooler
sintering circular
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CN106440834A (en
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江文豪
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Huatian Engineering and Technology Corp MCC
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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
    • 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
    • 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
    • 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
    • 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
    • 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

Abstract

The present invention discloses a kind of pair and wind binary channels sintering circular-cooler waste heat boiler is taken to take distinguished and admirable measuring method, when mainly for the recycling of sintering circular-cooler waste heat, do not have directly measurement take wind flow under conditions of, indirect gain sintering circular-cooler waste heat boiler takes wind flow and designs, including obtaining valid data, calculate waste heat boiler effective use heat, calculate the volume accounting for taking vapor in air piping, it calculates sintering circular-cooler high temperature section and takes wind enthalpy, sintering circular-cooler low-temperature zone takes wind enthalpy, then sintering circular-cooler waste heat boiler high temperature section is calculated by waste heat boiler high temperature overheater fume side parameter and takes wind flow, sintering circular-cooler waste heat boiler low-temperature zone is finally calculated and takes wind flow.

Description

A kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method
Technical field
The present invention relates to a kind of pair to take wind binary channels 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 one kind pair take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring Method.
Background technique
In steel manufacture process, sintering process energy consumption is only second to Iron-smelting, account for steel production total energy consumption 10%~ 12%, and in sintering process, the heat that atmosphere is discharged into the form of sintering device flue gas and cooling machine waste gas sensible heat accounts for agglomerant 50% or so of sequence total energy consumption.Since the temperature of sintering circular-cooler exhaust gas is not high, substantially 150-450 DEG C, in addition waste heat before this The limitation of recovery technology, sintering circular-cooler waste gas residual heat recycling project is long-term only to be applied in a small number of large-scale steel mills.
In recent years, with the development of low temperature exhaust heat recovery technology, the cost and investment of the waste heat recycling project of steel industry Be greatly lowered, while the efficiency of waste-heat recovery device significantly improves, large quantities of middle-size and small-size iron and steel enterprises also start one after another waste heat return Receipts project, sintering circular-cooler waste heat boiler are widely applied, and are especially got in Current resource growing tension and environmental requirement Come under higher situation, can more highlight its economic benefit and social benefit.
For sintering circular-cooler residual neat recovering system, it is most basic that ring cold machine waste heat exhausting section, which takes air quantity (exhaust gas volumn), Input condition and residual neat recovering system operation one of main monitoring parameters, however, since sintering circular-cooler waste heat recycles System requirements occupied area is larger, and actual place condition is mostly all than relatively limited (especially transformation project), it is difficult to ensure that taking Air piping has longer straight pipe.And still further aspect causes ring cold machine to take air piping caliber since exhaust gas volumn (air quantity) is larger Very big (large-scale ring cold machine air piping caliber is taken to be even as high as 3~4m), and flow measurement has the length of front and back straight pipe Compare strict requirements, thus engineering site, which is difficult to meet, takes the flow measurement requirement of air piping, this is inevitably resulted in Distinguished and admirable measurements are taken to greatly deviate from true value, to lose validity.
Therefore, double wind binary channels sintering circular-cooler residual neat recovering system, structure are taken for widely applied in engineering at present Build a sintering circular-cooler and take distinguished and admirable measuring method, do not have at the scene it is measured directly under the conditions of indirect gain is double takes wind double Channel sintering circular-cooler waste heat boiler takes wind flow, provides authentic data for the operation monitoring and operation adjustment of waste heat boiler, With important Practical significance.
Summary of the invention
In order to achieve the above objectives, the present invention, which provides, a kind of double takes wind single channel sintering circular-cooler waste heat boiler to take distinguished and admirable measurement Amount method, which comprises choose sintering circular-cooler waste heat boiler two take in air piping wherein one take the air piping to be First pipe, another root canal road are second pipe；Wherein first pipe takes wind flow to correspond to first pipe to take wind flow, and second Pipeline takes wind flow to correspond to second pipe to take wind flow, specific measurement method are as follows:
Obtain waste heat boiler superheat steam flow, superheated steam enthalpy, water supply enthalpy, using acquisition the data calculate more than The effective use heat of heat boiler；
According to exhaust-heat boiler flue gas side operating parameter and waste heat boiler carbonated drink side operating parameter, iterative calculation is taken in air piping Flue gas in vapor volume accounting 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 the flue gas Knot ring cold machine waste heat boiler first pipe takes the corresponding first pipe of wind flow to take wind enthalpy, sintering circular-cooler waste heat boiler second Pipeline takes the corresponding second pipe of wind flow to take wind enthalpy, waste heat boiler import flue gas enthalpy, iterates to calculate under standard state The first and second pipeline of sintering circular-cooler waste heat boiler takes wind flow；
Wind flow and local atmosphere are taken according to the first and second pipeline of sintering circular-cooler waste heat boiler under the standard state Pressure, the first and second pipeline of sintering circular-cooler waste heat boiler take wind pressure and the first and second pipeline of sintering circular-cooler waste heat boiler to take wind Temperature, the first and second pipeline of sintering circular-cooler waste heat boiler calculated under virtual condition take 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 obtains the calculating formula of waste heat boiler effective use heat are as follows:
Ql=Dgr(hgr-hgs), wherein
QlHeat, kJ/h are efficiently used for waste heat boiler；
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 boilers, obtains the calculating formula of the effective use heat of waste heat boiler are as follows:
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein
QlHeat, kJ/h are efficiently used for waste heat boiler；
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 operating parameter and waste heat boiler carbonated drink side operating parameter, iterative calculation is taken in air piping Flue gas in vapor volume accounting and sintering circular-cooler waste heat boiler import flue gas total flow, specific steps are as follows:
1) the volume accounting k of vapor in the initial flue gas taken in air piping is set；
2) waste heat boiler import flue gas enthalpy, calculating formula are calculated using the volume accounting of the vapor of setting are as follows:
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 Mouth flue gas enthalpy, calculating formula are as follows:
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 the waste heat boiler is double discard heat boilers, calculates waste heat boiler high pressure using given vapor volume accounting Section superheater outlet flue gas enthalpy, calculating formula are as follows:
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) the sintering circular-cooler waste heat boiler import flue gas total flow under standard state is calculated:
If waste heat boiler is single-pressure HGSR, calculating formula are as follows:
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 boilers, calculating formula are as follows:
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) the volume accounting k for taking vapor in the flue gas in air piping is calculatedjs, calculating formula are as follows:
Wherein,
kjsFor the volume accounting of vapor in the flue gas of calculating taken in air piping；
QlHeat, kJ/h are efficiently used for waste heat boiler；
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) threshold alpha is preset, the volume accounting k of the vapor obtained will be calculatedjsWith the volume accounting k of the vapor of setting It is compared:
If | k-kjs|≤α is then obtained and is taken in flue gas in air piping under the 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 kjsVapor volume in flue gas is taken in air piping as new setting with the average value of k Accounting, return step 1)；
Wind is taken according to the volume accounting of vapor, sintering circular-cooler waste heat boiler first pipe in the flue gas taken in air piping At a temperature of dry air enthalpy, the dry air enthalpy under sintering circular-cooler waste heat boiler second pipe wind temperature, sintered ring it is cold Under vapor enthalpy, sintering circular-cooler waste heat boiler second pipe wind temperature under machine waste heat boiler first pipe wind temperature Vapor enthalpy, calculate and obtain sintering circular-cooler waste heat boiler first pipe and take wind enthalpy and sintering circular-cooler waste heat boiler the Two pipelines take wind enthalpy, calculating formula are as follows:
Wherein,
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler first pipe3；
H2Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler second pipe3；
K is the volume accounting of vapor in the flue gas taken in air piping；
hgk,1For the dry air enthalpy under sintering circular-cooler waste heat boiler first pipe wind temperature, kJ/Nm3；
hgk,2For the dry air enthalpy under sintering circular-cooler waste heat boiler second pipe wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler waste heat boiler first pipe wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler waste heat boiler second pipe wind temperature, kJ/Nm3；
Wind enthalpy is taken according to sintering circular-cooler waste heat boiler import flue gas total flow, sintering circular-cooler waste heat boiler first pipe Value, sintering circular-cooler waste heat boiler second pipe take wind enthalpy, waste heat boiler import flue gas enthalpy, iterate to calculate under standard state The first and second pipeline of sintering circular-cooler waste heat boiler take wind flow, specific steps are as follows:
1) the sintering circular-cooler waste heat boiler first pipe set under a standard state takes wind flow V1 0；
2) wind flow V is taken according to the sintering circular-cooler waste heat boiler first pipe under the standard state of setting1 0Acquisition standard Sintering circular-cooler waste heat boiler second pipe under state takes wind flowThe calculating formula utilized are as follows:
Wherein,
Wind flow, Nm are taken 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 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler first pipe under standard state3/h；
3) wind enthalpy, sintering circular-cooler waste heat boiler the is taken according to the sintering circular-cooler waste heat boiler first pipe that has found out Two pipelines take the sintering circular-cooler waste heat boiler second pipe under wind enthalpy, waste heat boiler import flue gas enthalpy, standard state to take Sintering circular-cooler waste heat boiler import flue gas total flow under wind flow and standard state calculates the sintered ring under standard state Cold waste heat boiler first pipe takes wind flowThe calculating formula utilized are as follows:
Wherein,
Wind flow is taken for the sintering circular-cooler waste heat boiler first pipe under the standard state that is calculated；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler first pipe3；
H2Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler second pipe3；
4) threshold epsilon is preset, the sintering circular-cooler waste heat boiler first pipe under the standard state for calculating acquisition is taken into wind Sintering circular-cooler waste heat boiler first pipe under flow and the standard state of setting takes wind flow V1 0It is compared:
IfThe sintering circular-cooler waste heat boiler first pipe then obtained under standard state takes wind flow V1 0 And the sintering circular-cooler waste heat boiler second pipe under standard state takes wind flow
IfThen willAnd V1 0Average value as the sintered ring under the standard state of new setting Cold waste heat boiler first pipe takes wind flow, return step 1)；
Wind flow is taken to calculate practical shape according to the first and second pipeline of sintering circular-cooler waste heat boiler under the standard state The first and second pipeline of sintering circular-cooler waste heat boiler under state takes the utilization calculating formula of wind flow are as follows:
Wherein,
V1Wind flow, m are taken for the sintering circular-cooler waste heat boiler first pipe under virtual condition3/h；
V1 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler first pipe under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lWind pressure, Pa are taken for sintering circular-cooler waste heat boiler first pipe；
tf,lFor sintering circular-cooler waste heat boiler first pipe wind temperature, DEG C；
V2Wind flow, m are taken for the sintering circular-cooler waste heat boiler second pipe under virtual condition3/h；
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
pf,2Wind pressure, Pa are taken for sintering circular-cooler waste heat boiler second pipe；
tf,2For sintering circular-cooler waste heat boiler second pipe wind temperature, DEG C；
In order to achieve the above objectives, the present invention, which provides, a kind of double takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measurement Amount method, which comprises 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 water supply enthalpy, using obtaining The data taken calculate waste heat boiler effective use heat；
The steam-laden pressure under local atmospheric pressure, relative humidity of atomsphere, environment temperature is obtained, the number of acquisition is utilized According to the absolute humidity for calculating air, the volume for taking vapor in the flue gas in air piping is then calculated using the absolute humidity of air Accounting；Or setting takes the volume accounting of vapor in the flue gas in air piping；
According to dry under the volume accounting of vapor, sintering circular-cooler high temperature section wind temperature in the flue gas taken in air piping Air enthalpy, under the vapor enthalpy, sintering circular-cooler low-temperature zone wind temperature under sintering circular-cooler high temperature section wind temperature Dry air enthalpy, the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, waste heat boiler high temperature overheater export cigarette Dry air enthalpy at a temperature of gas, the vapor enthalpy under waste heat boiler high temperature overheater exit gas temperature, waste heat boiler The vapor enthalpy under dry air enthalpy, smoke temperature at outlet of waste heat boiler under exit gas temperature 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；
It is 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 the standard state Wind enthalpy, sintering are taken using heat and waste heat boiler errors, heat boiler outlet flue gas enthalpy, sintering circular-cooler high temperature section Ring cold machine low-temperature zone takes wind enthalpy, and the sintering circular-cooler waste heat boiler low-temperature zone calculated under standard state takes wind flow；
The burning under wind flow, standard state is taken according to the sintering circular-cooler waste heat boiler high temperature section under the standard state Knot ring cold machine 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, and reality is calculated 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 binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, the calculating has Effect utilizes hot calculating formula are as follows:
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein
QlHeat, kJ/h are efficiently used for waste heat boiler；
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 water supply enthalpy, kJ/kg.
Preferably, a kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, waste heat boiler is useless Gas is directly discharged in atmosphere, then first obtains the steam-laden pressure under local atmospheric pressure, relative humidity of atomsphere, environment temperature Then power is calculated the absolute humidity of air using the data obtained, and is taken in air piping using the calculating of the absolute humidity of air The volume accounting of vapor, calculating formula are respectively as follows: in flue gas
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 environment temperature, Pa；
Or the exhaust-heat boiler flue gas return air then takes the volume accounting of vapor in the flue gas in air piping to adopt to ring cold machine Use setting value.
Preferably, a kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, the calculating is burnt Knot ring cold machine 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 are as follows:
Wherein,
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；
H2Wind enthalpy, kJ/Nm are taken 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 taken in air piping；
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 double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, more than the 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, calculating formula are as follows:
Wherein,
V1 0Wind flow, Nm are taken 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；
H1Wind enthalpy, kJ/Nm are taken 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 binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, the calculating mark Sintering circular-cooler waste heat boiler low-temperature zone under quasi- state takes the calculating formula of wind flow are as follows:
Wherein,
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
QlHeat, kJ/h are efficiently used for waste heat boiler；
For waste heat boiler errors；
V1 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；
H2Wind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3。
Preferably, a kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, the 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, calculating formula are as follows:
Wherein,
V1Wind flow, m are taken for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；
V1 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lWind pressure, Pa are taken for sintering circular-cooler high temperature section
tf,lFor sintering circular-cooler high temperature section wind temperature, DEG C；
V2Wind flow, m are taken for the sintering circular-cooler waste heat boiler low-temperature zone under virtual condition3/h；
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
pf,2Wind pressure, Pa are taken for sintering circular-cooler low-temperature zone；
tf,2For sintering circular-cooler low-temperature zone wind temperature, DEG C.
Of the invention pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, takes wind binary channels for double Sintering circular-cooler waste heat boiler takes the measurement of wind flow, takes wind binary channels to be sintered by the way that waste heat boiler operation data indirect gain is double Ring cold machine waste heat boiler takes wind flow, does not have straight pipe condition required by flow measurement at the scene, and then cause to take wind It is especially effective in the case that flow can not be measured directly or measurement accuracy not can guarantee, as a result it can be supervised for the operation of waste heat boiler Depending on providing authentic data with operation adjustment, there is important Practical significance.
Detailed description of the invention
Fig. 1 is sintering circular-cooler waste heat boiler waste heat reclaiming process flow chart, A trolley traffic direction, B charging, 1 waste heat pot Furnace, 2 ring cold machine high temperature sections, 3 ring cold machine low-temperature zones, 4 ring cold machine high temperature sections take air piping, and 5 ring cold machine low-temperature zones take air piping, and 6 Waste heat boiler smoke discharging pipe.
Fig. 2 is the sintering circular-cooler waste heat reclaiming process flow chart that waste heat boiler smoke evacuation uses air return method；The operation of A trolley Direction, B charging, 1 waste heat boiler, 2 ring cold machine high temperature sections, 3 ring cold machine low-temperature zones, 4 ring cold machine high temperature sections take air piping, and 5 rings are cold Machine low-temperature zone takes air piping, 6 waste heat boiler smoke discharging pipes.
Fig. 3 is sintering circular-cooler waste heat reclaiming process flow chart of the waste heat boiler smoke evacuation using in line mode；The operation of A trolley Direction, B charging, 1 waste heat boiler, 2 ring cold machine high temperature sections, 3 ring cold machine low-temperature zones, 4 ring cold machine high temperature sections take air piping, and 5 rings are cold Machine low-temperature zone takes air piping, 6 waste heat boiler smoke discharging pipes.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings of the specification.
Embodiment one
The first pipe takes wind flow to correspond to high temperature section and takes wind flow, and second pipe takes wind flow to correspond to low-temperature zone and takes wind Flow, the measurement method specific steps of use are as follows:
1, the operation data of sintering circular-cooler waste heat boiler is acquired, comprising: ring cold machine high temperature section wind temperature, ring cold machine are high Temperature section takes wind pressure, ring cold machine low-temperature zone wind temperature, ring cold machine low-temperature zone to take wind pressure, atmospheric pressure, exhaust-heat boiler flue gas Side operating parameter 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；It is high for double discard heat boilers, including waste heat boiler input gas temperature, waste heat boiler Press section superheater outlet flue-gas temperature, smoke temperature at outlet of waste heat boiler), waste heat boiler carbonated drink side operating parameter is (for single pressure Waste heat boiler, including superheat steam temperature, superheated steam pressure, superheat steam flow, drum pressure, feed temperature, give hydraulic 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 Hot 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 Section superheated steam pressure, waste heat boiler low pressure stage superheat steam flow, high pressure section drum pressure, waste heat boiler import are to water temperature Degree, waste heat boiler import feed pressure, waste heat boiler import feedwater flow).
2, the data obtained to step 1 pre-process, including bad point processing and data smoothing processing, obtain for solving Sintering circular-cooler waste heat boiler takes the valid data of wind flow.
3, the valid data obtained according to step 2 obtain sintering circular-cooler waste heat boiler and take wind flow, specifically include following Step:
3.1, which calculate waste heat boiler, efficiently uses hot Ql:
3.1.1 for single-pressure HGSR:
Ql=Dgr(hgr-hgs)
Wherein, QlHeat, kJ/h are efficiently used for waste heat boiler；DgrFor superheat steam flow, kg/h；hgrFor waste heat boiler mistake Hot steam enthalpy, kJ/kg are calculated by waste heat boiler superheated steam pressure and superheat steam temperature or are tabled look-up to obtain；hgsFor waste heat Boiler feedwater enthalpy, kJ/kg are calculated by waste heat boiler feed pressure and feed temperature or are tabled look-up to obtain.
3.1.2 for double discard heat boilers:
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs)
Wherein, QlHeat, kJ/h are efficiently used for waste heat boiler；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 to obtain；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2For waste heat boiler Low pressure stage superheated steam enthalpy, kJ/kg are calculated by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature Or it tables look-up to obtain；hgsFor waste heat boiler import Enthalpy of Feed Water, kJ/kg, by waste heat boiler import feed pressure and feed temperature meter It calculates or tables look-up to obtain.
3.2, which pass through iterative calculation, solves more than the volume accounting k and sintering circular-cooler for taking vapor in flue gas in air piping Heat boiler import flue gas total flow
3.2.1 the volume accounting k of vapor in the initial flue gas taken in air piping is set；
3.2.2 waste heat boiler import flue gas enthalpy is calculated:
Wherein, HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；hgk,inIt is dry under waste heat boiler input gas temperature Air enthalpy, kJ/Nm3, calculated or tabled look-up by waste heat boiler input gas temperature to 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 to obtain.
3.2.3 waste-heat boiler superheater exiting flue gas enthalpy is calculated:
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 to 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 to 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 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 It calculates or tables look-up to obtain；For the vapor enthalpy under waste heat boiler high pressure section superheater outlet flue-gas temperature, kJ/Nm3, It is calculated by waste heat boiler high pressure section superheater outlet flue-gas temperature or tables look-up to obtain.
3.2.4 the sintering circular-cooler waste heat boiler import flue gas total flow under standard state is calculated:
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 overheat 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 tables look-up to obtain；hbhFor waste heat boiler saturated vapor enthalpy, kJ/kg is calculated or is looked 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 Hot steam pressure and high pressure section superheat steam temperature calculate or table look-up to obtain；hbh1For waste heat boiler high pressure section saturated vapor enthalpy, KJ/kg is calculated by waste heat boiler high pressure section drum pressure or is tabled look-up to obtain；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 the volume accounting k of vapor in the flue gas taken in air piping calculated is solvedjs；
Wherein, kjsFor the volume accounting of vapor in the flue gas of calculating taken in air piping ,-；QlIt is effective for waste heat boiler Utilize 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 Furnace 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 to obtain；hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, calculated by smoke temperature at outlet of waste heat boiler or table look-up to obtain；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 to obtain；For heat boiler outlet flue gas At a temperature of vapor enthalpy, kJ/Nm3, calculated by smoke temperature at outlet of waste heat boiler or table look-up to obtain.
3.2.6 the volume accounting k of vapor in the flue gas taken in air piping step 3.2.5 being calculatedjsWith step 3.2.1 the k set is compared:
If the difference of the two is in the error range of setting, then output takes the volume of vapor in the flue gas in air piping to account for Than the sintering circular-cooler waste heat boiler import flue gas total flow under k and standard state
If the difference of the two is not in the range of setting, then by kjsAverage value with k is as the new flue gas taken in air hose Then the setting value of the volume accounting of middle vapor re-execute the steps 3.2.1~step 3.2.6.
3.3, which calculate separately sintering circular-cooler high temperature section, takes wind enthalpy and sintering circular-cooler low-temperature zone to take wind enthalpy:
Wherein, HhWind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；HlWind enthalpy is taken for sintering circular-cooler low-temperature zone, kJ/Nm3；K is the volume accounting of vapor in the flue gas taken in air piping ,-；hgk,hFor sintering circular-cooler high temperature section wind temperature Under dry air enthalpy, kJ/Nm3, calculated by sintering circular-cooler high temperature section wind temperature or table look-up to obtain；hgk,lIt is cold 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 It arrives；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 to obtain；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by burning Knot ring cold machine low-temperature zone wind temperature calculates or tables look-up to obtain.
3.4, which obtain the sintering circular-cooler waste heat boiler high temperature section under standard state by iterative calculation, takes wind flow and sintering Ring cold machine waste heat boiler low-temperature zone takes wind flow:
3.4.1 the sintering circular-cooler waste heat boiler high temperature section set 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 Vl 0:
Wherein, Vl 0Wind flow, Nm are taken 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 calculated under standard state takes wind flow
Wherein,Wind flow is taken for the sintering circular-cooler waste heat boiler high temperature section under the standard state that is calculated, Nm3/h；For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；Vl 0For 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；HlWind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3。
3.4.4 the sintering circular-cooler waste heat boiler high temperature section under standard state that step 3.4.3 is obtained is taken into wind flowAssume with step 3.4.1It compares:
If the difference of the two is in the range of setting, then the sintering circular-cooler waste heat boiler high temperature under outputting standard state Section takes wind flowWind flow V is taken with the sintering circular-cooler waste heat boiler low-temperature zone under standard statel 0；
If the difference of the two not in the range of setting, then willWithAverage value take wind as new high temperature section Then flow setting value re-execute the steps 3.4.1~step 3.4.4.
3.5 take wind flow using the sintering circular-cooler waste heat boiler high temperature section under the standard state obtained by iterative calculation Wind flow is taken with the sintering circular-cooler waste heat boiler low-temperature zone under standard state, calculates 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, VhWind flow, m are taken for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；For standard shape Sintering circular-cooler waste heat boiler high temperature section under state takes wind flow, Nm3/h；paFor local atmospheric pressure, Pa；pf,hFor sintering circular-cooler High temperature section takes wind pressure, Pa；tf,hFor sintering circular-cooler high temperature section wind temperature, DEG C；VlFor the sintering circular-cooler under virtual condition Waste heat boiler low-temperature zone takes wind flow, m3/h；Vl 0Wind flow is taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state, Nm3/h；pf,lWind pressure, Pa are taken for sintering circular-cooler low-temperature zone；tf,lFor sintering circular-cooler low-temperature zone wind temperature, DEG C.
Embodiment two
The first pipe takes wind flow to correspond to low-temperature zone and takes wind flow, and second pipe takes wind flow to correspond to high temperature section and takes wind Flow, the measurement method specific steps of use are as follows:
1, the operation data of sintering circular-cooler waste heat boiler is acquired, comprising: ring cold machine high temperature section wind temperature, ring cold machine are high Temperature section takes wind pressure, ring cold machine low-temperature zone wind temperature, ring cold machine low-temperature zone to take wind pressure, exhaust-heat boiler flue gas side operating parameter (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 carbonated drink side operating parameter (for single-pressure HGSR, packet Include superheat steam temperature, superheated steam pressure, superheat steam flow, drum pressure, feed temperature, feed pressure, feedwater flow； For double discard heat boilers, including it is 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 into Mouth feed pressure, waste heat boiler import feedwater flow).
2, the input data obtained to step 1 pre-processes, including bad point processing and data smoothing processing, is used for Solve the valid data that sintering circular-cooler waste heat boiler takes wind flow.
3, the valid data obtained according to step 2 obtain sintering circular-cooler waste heat boiler and take wind flow, specifically include following Step:
3.1, which calculate waste heat boiler, efficiently uses hot Ql:
3.1.1 for single-pressure HGSR:
Ql=Dgr(hgr-hgs)
Wherein, QlHeat, kJ/h are efficiently used for waste heat boiler；DgrFor superheat steam flow, kg/h；hgrFor waste heat boiler mistake Hot steam enthalpy, kJ/kg are calculated by waste heat boiler superheated steam pressure and superheat steam temperature or are tabled look-up to obtain；hgsFor waste heat Boiler feedwater enthalpy, kJ/kg are calculated by waste heat boiler feed pressure and feed temperature or are tabled look-up to obtain.
3.1.2 for double discard heat boilers:
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs)
Wherein, QlHeat, kJ/h are efficiently used for waste heat boiler；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 to obtain；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2For waste heat boiler Low pressure stage superheated steam enthalpy, kJ/kg are calculated by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature Or it tables look-up to obtain；hgsFor waste heat boiler import Enthalpy of Feed Water, kJ/kg, by waste heat boiler import feed pressure and feed temperature meter It calculates or tables look-up to obtain.
3.2 solve the volume accounting k and sintering circular-cooler for taking vapor in the flue gas in air piping by iterative calculation Waste heat boiler import flue gas total flow
3.2.1 the volume accounting k of vapor in the initial flue gas taken in air piping is set；
3.2.2 waste heat boiler import flue gas enthalpy is calculated:
Wherein, HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；hgk,inIt is remaining Dry air enthalpy under heat boiler input gas temperature, kJ/Nm3, calculated or tabled look-up by waste heat boiler input gas temperature to obtain；For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3, calculated by waste heat boiler input gas temperature or It tables look-up to obtain.
3.2.3 waste-heat boiler superheater exiting flue gas enthalpy is calculated:
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 to obtain；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 to 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 to obtain；For waste heat boiler high pressure section superheater outlet flue gas temperature Vapor enthalpy under degree, kJ/Nm3, calculated by waste heat boiler high pressure section superheater outlet flue-gas temperature or table look-up to obtain.
3.2.4 the sintering circular-cooler waste heat boiler import flue gas total flow under standard state is calculated:
3.2.4.1 for single-pressure HGSR:
Wherein,It is always flowed 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 is overheated by waste heat boiler Steam pressure and superheat steam temperature calculate or table look-up to obtain；hbhFor waste heat boiler saturated vapor enthalpy, kJ/kg, by waste heat pot Furnace drum pressure calculates or tables look-up to obtain；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,It is 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 by waste heat boiler high pressure section superheated steam pressure and high pressure section superheat steam temperature or is tabled look-up to obtain；hbh1For waste heat pot Furnace high pressure section saturated vapor enthalpy, kJ/kg are calculated by waste heat boiler high pressure section drum pressure or are tabled look-up to obtain；HinFor waste heat pot Furnace import flue gas enthalpy, kJ/Nm3；HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3。
3.2.5 the volume accounting k of vapor in the flue gas taken in air piping calculated is solvedjs:
Wherein, kjsIt is steamed for water in the flue gas of calculating taken in air piping The volume accounting of gas ,-；QlHeat, kJ/h are efficiently used for waste heat boiler；For the sintering circular-cooler waste heat pot under standard state Furnace import flue gas total flow, Nm3/h；For waste heat boiler errors, setting value can be taken as；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 to obtain；hgk,outFor waste heat Dry air enthalpy under boiler export flue-gas temperature, kJ/Nm3, calculated by smoke temperature at outlet of waste heat boiler or table look-up to obtain；For the vapor enthalpy under waste heat boiler input gas temperature, kJ/Nm3, calculated by waste heat boiler input gas temperature or It tables look-up to obtain；For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet flue gas Temperature computation tables look-up to obtain.
3.2.6 the volume accounting k of vapor in the flue gas taken in air piping step 3.2.5 being calculatedjsWith step 3.2.1 the k set is compared:
If the difference of the two is in the error range of setting, then output takes the volume of vapor in the flue gas in air piping to account for Than the sintering circular-cooler waste heat boiler import flue gas total flow under k and standard state
If the difference of the two is not in the range of setting, then by kjsAverage value with k is as the new flue gas taken in air hose Then the setting value of the volume accounting of middle vapor re-execute the steps 3.2.1~step 3.2.6.
3.3 calculating sintering circular-cooler high temperature sections take wind enthalpy and sintering circular-cooler low-temperature zone to take wind enthalpy:
Wherein, HhWind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；HlWind enthalpy is taken for sintering circular-cooler low-temperature zone, kJ/Nm3；K is the volume accounting of vapor in the flue gas taken in air piping ,-；hgk,hFor sintering circular-cooler high temperature section wind temperature Under dry air enthalpy, kJ/Nm3, calculated by sintering circular-cooler high temperature section wind temperature or table look-up to obtain；hgk,lIt is cold 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 It arrives；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 to obtain；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by burning Knot ring cold machine low-temperature zone wind temperature calculates or tables look-up to obtain.
3.4 by iterative calculation obtain standard state under sintering circular-cooler waste heat boiler high temperature section and low-temperature zone take it is distinguished and admirable Amount:
3.4.1 the sintering circular-cooler waste heat boiler low-temperature zone set under initial standard state takes wind flow Vl 0；
3.4.2 the sintering circular-cooler waste heat boiler high temperature section being calculated under standard state takes wind flow
Wherein, Vl 0Wind flow is taken 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 calculated under standard state takes wind flow
Wherein,For the sintering circular-cooler waste heat pot under the standard state that is calculated Furnace 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；Wind flow, Nm are taken 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；HhWind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；HlWind enthalpy is taken for sintering circular-cooler low-temperature zone, kJ/Nm3。
3.4.4 the sintering circular-cooler waste heat boiler low-temperature zone under standard state that step 3.4.3 is obtained is taken into wind flowThe V assumed with step 3.4.1l 0It compares:
If the difference of the two is in the range of setting, then the sintering circular-cooler waste heat boiler low temperature under outputting standard state Section takes wind flow Vl 0Wind flow is taken 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 willWith Vl 0Average value take wind as new low-temperature zone Then flow setting value re-execute the steps 3.4.1~3.4.4.
3.5 take wind flow using the sintering circular-cooler waste heat boiler high temperature section under the standard state obtained by iterative calculation Wind flow is taken with the sintering circular-cooler waste heat boiler low-temperature zone under standard state, calculates 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, VhWind flow, m are taken for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；For standard shape Sintering circular-cooler waste heat boiler high temperature section under state takes wind flow, Nm3/h；Pa is local atmospheric pressure, Pa；pf,hIt is cold for sintered ring Machine high temperature section takes wind pressure, Pa；tf,hFor sintering circular-cooler high temperature section wind temperature, DEG C；VlIt is cold for the sintered ring under virtual condition Machine waste heat boiler low-temperature zone takes wind flow, m3/h；Vl 0It is taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state distinguished and admirable Amount, Nm3/h；pf,lWind pressure, Pa are taken 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, it is a kind of it is double take wind binary channels sintering circular-cooler waste heat boiler take distinguished and admirable measuring method, specifically Are as follows:
1, the operation data of sintering circular-cooler waste heat boiler is acquired, comprising: ring cold machine high temperature section wind temperature, ring cold machine are high Temperature section takes wind pressure, ring cold machine low-temperature zone wind temperature, ring cold machine low-temperature zone to take wind pressure, exhaust-heat boiler flue gas side operating parameter (including waste heat boiler high pressure section superheater outlet flue-gas temperature, smoke temperature at outlet of waste heat boiler), waste heat boiler carbonated drink side fortune Row parameter (including 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.
2, the input data obtained to step 1 pre-processes, including bad point processing and data smoothing processing, is used for Solve the valid data that sintering circular-cooler waste heat boiler takes wind flow.
3, the valid data obtained according to step 2 obtain sintering circular-cooler waste heat boiler and take wind flow, specifically include following Step:
3.1, which calculate waste heat boiler, efficiently uses hot Ql:
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs)
Wherein, QlHeat, kJ/h are efficiently used for waste heat boiler；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 Hot steam temperature tables look-up to obtain；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2For waste heat boiler low pressure stage mistake Hot steam enthalpy, kJ/kg are tabled look-up to obtain by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature；hgsFor Waste heat boiler import water supply enthalpy, kJ/kg are tabled look-up by waste heat boiler import feed pressure and waste heat boiler import feed temperature It arrives；
3.2 take the volume accounting of vapor in flue gas in air piping:
If 3.2.1 the exhaust gas of the exclusion of waste heat boiler is back to ring cold machine through circulating fan, setting takes the cigarette in air piping The volume accounting of vapor in gas；
If 3.2.2 the exhaust gas of waste heat boiler discharge is directly discharged in atmosphere, the absolute humidity d of air is first calculatedk, then Utilize the absolute humidity d of the air acquiredkCalculate the volume accounting k for taking vapor in the flue gas in air piping, calculating formula difference Are as follows:
Wherein, dkFor the absolute humidity of air, kg/kg (dry air)；paFor local atmospheric pressure, Pa；φ is that atmosphere is opposite Humidity, %；psFor the steam-laden pressure under environment temperature, Pa, according to environment temperature t0Vapor table is looked into obtain；K is to take wind The volume accounting of vapor in flue gas in pipeline ,-.
3.3, which calculate separately sintering circular-cooler high temperature section, 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, H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；H2Wind enthalpy is taken 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 (setting value can be used) of vapor in the flue gas taken in air piping ,-；hgk,hFor sintering circular-cooler Dry air enthalpy under high temperature section wind temperature, kJ/Nm3, table look-up to obtain by sintering circular-cooler high temperature section wind temperature； For the vapor enthalpy under sintering circular-cooler high temperature section wind temperature, kJ/Nm3, looked by sintering circular-cooler high temperature section wind temperature Table obtains；hgk,2For the dry air enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by sintering circular-cooler low-temperature zone Wind temperature tables look-up to obtain；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by being sintered Ring cold machine low-temperature zone wind temperature tables look-up to obtain；hgk,grqFor the dry sky under waste heat boiler high pressure section superheater outlet flue-gas temperature Gas enthalpy, kJ/Nm3, table look-up to obtain by waste heat boiler high pressure section superheater outlet flue-gas temperature；For waste heat boiler high pressure Vapor enthalpy under section superheater outlet flue-gas temperature, kJ/Nm3, by waste heat boiler high pressure section superheater outlet flue-gas temperature It tables look-up to obtain；hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet flue gas Temperature tables look-up to obtain；For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet Flue-gas temperature tables look-up to obtain.
Sintering circular-cooler waste heat boiler high temperature section under 3.4 calculating standard state takes wind flow:
Wherein,Wind flow, Nm are taken 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 Hot steam pressure and high pressure section superheat steam temperature table look-up to obtain；hbh1For waste heat boiler high pressure section saturated vapor enthalpy, kJ/kg, It tables look-up to obtain by waste heat boiler high pressure section drum pressure；HhWind enthalpy, kJ/Nm are taken 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,Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；QlFor waste heat Boiler effective use heat, kJ/h；For waste heat boiler errors, setting value can be taken as；V1 0For 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；H1It is cold for sintered ring Machine high temperature section takes wind enthalpy, kJ/Nm3；H2Wind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3。
The 3.6 sintering circular-cooler waste heat boiler high temperature sections being calculated under virtual condition take wind flow V1Under virtual condition Sintering circular-cooler waste heat boiler low-temperature zone take wind flow V2:
Wherein, V1Wind flow, m are taken for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；V1 0For standard shape Sintering circular-cooler waste heat boiler high temperature section under state takes wind flow, Nm3/h；paFor local atmospheric pressure, Pa；pf,1For sintering circular-cooler High temperature section takes wind pressure, Pa；tf,1For sintering circular-cooler high temperature section wind temperature, DEG C；V2For the sintering circular-cooler under virtual condition Waste heat boiler low-temperature zone takes wind flow, m3/h；Wind flow is taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state, Nm3/h；pf,2Wind pressure, Pa are taken 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 scope of protection of the present invention is not limited thereto, and it is any to be familiar with sheet In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover Within protection scope of the present invention.Therefore, the scope of protection of the present invention shall be subject to the scope of protection defined by the claims.

Claims (9)

1. a kind of pair takes wind single channel sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, it is characterised in that: the method Including, choose sintering circular-cooler waste heat boiler two take in air piping wherein one take air piping be first pipe, Ling Yigen Taking air piping is second pipe；
Wherein first pipe takes wind flow to correspond to sintering circular-cooler waste heat boiler first pipe to take wind flow, and second pipe takes Wind flow corresponds to sintering circular-cooler waste heat boiler second pipe and takes wind flow, specific measurement method are as follows:
Superheat steam flow, superheated steam enthalpy, the water supply enthalpy for obtaining waste heat boiler calculate waste heat boiler using the data of acquisition Effective use heat；
According to exhaust-heat boiler flue gas side operating parameter and waste heat boiler carbonated drink side operating parameter, iterative calculation is obtained and is taken in air piping Flue gas in vapor volume accounting 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 first pipe wind temperature in the flue gas taken in air piping Under dry air enthalpy, the dry air enthalpy under sintering circular-cooler waste heat boiler second pipe wind temperature, more than sintering circular-cooler The water under vapor enthalpy, sintering circular-cooler waste heat boiler second pipe wind temperature under heat boiler first pipe wind temperature Steam enthalpy calculates acquisition sintering circular-cooler waste heat boiler first pipe and wind enthalpy and sintering circular-cooler waste heat boiler second is taken to manage Road takes wind enthalpy；
According to sintering circular-cooler waste heat boiler import flue gas total flow, sintering circular-cooler waste heat boiler first pipe take wind enthalpy, Sintering circular-cooler waste heat boiler second pipe takes wind enthalpy, waste heat boiler import flue gas enthalpy, iterates to calculate under standard state The first and second pipeline of sintering circular-cooler waste heat boiler takes wind flow；
Wind flow, local atmospheric pressure are taken according to the first and second pipeline of sintering circular-cooler waste heat boiler under the standard state, is burnt Knot the first and second pipeline of ring cold machine waste heat boiler takes wind pressure and sintering circular-cooler waste heat boiler the first and second pipeline wind temperature, The first and second pipeline of sintering circular-cooler waste heat boiler calculated under virtual condition takes wind flow；
Waste heat boiler is single-pressure HGSR, obtains the calculating formula of waste heat boiler effective use heat are as follows:
Ql=Dgr(hgr-hgs), wherein
QlHeat, kJ/h are efficiently used for waste heat boiler；
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 boilers, obtains the calculating formula of the effective use heat of waste heat boiler are as follows:
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein
QlHeat, kJ/h are efficiently used for waste heat boiler；
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 operating parameter and waste heat boiler carbonated drink side operating parameter, iterative calculation takes the cigarette in air piping The volume accounting of vapor and sintering circular-cooler waste heat boiler import flue gas total flow, specific steps in gas are as follows:
1) the volume accounting k of vapor in the initial flue gas taken in air piping is set；
2) waste heat boiler import flue gas enthalpy, calculating formula are calculated using the volume accounting of the vapor of setting are as follows:
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 exports cigarette Gas enthalpy, calculating formula are as follows:
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 boilers, calculates waste heat boiler high pressure section superheater using given vapor volume accounting Exiting flue gas enthalpy, calculating formula are as follows:
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) the sintering circular-cooler waste heat boiler import flue gas total flow under standard state is calculated:
Waste heat boiler is single-pressure HGSR, calculating formula are as follows:
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 boilers, calculating formula are as follows:
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) the volume accounting k for taking vapor in the flue gas in air piping is calculatedjs, calculating formula are as follows:
Wherein,
kjsFor the volume accounting of vapor in the flue gas of calculating taken in air piping；
QlHeat, kJ/h are efficiently used for waste heat boiler；
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) threshold alpha is preset, the volume accounting k of the vapor obtained will be calculatedjsIt is carried out with the volume accounting k of the vapor of setting Compare:
If | k-kjs|≤α is then obtained and is taken the volume accounting k of vapor and the sintering under standard state in the flue gas in air piping Ring cold machine waste heat boiler import flue gas total flow
If | k-kjs| > α, then by kjsVapor volume accounting in flue gas is taken in air piping as new setting with the average value of k, Return step 1)；
According to the volume accounting of vapor, sintering circular-cooler waste heat boiler first pipe wind temperature in the flue gas taken in air piping Under dry air enthalpy, the dry air enthalpy under sintering circular-cooler waste heat boiler second pipe wind temperature, more than sintering circular-cooler The water under vapor enthalpy, sintering circular-cooler waste heat boiler second pipe wind temperature under heat boiler first pipe wind temperature Steam enthalpy calculates acquisition sintering circular-cooler waste heat boiler first pipe and wind enthalpy and sintering circular-cooler waste heat boiler second is taken to manage Road takes wind enthalpy, calculating formula are as follows:
Wherein,
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler first pipe3；
H2Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler second pipe3；
K is the volume accounting of vapor in the flue gas taken in air piping；
hgk,1For the dry air enthalpy under sintering circular-cooler waste heat boiler first pipe wind temperature, kJ/Nm3；
hgk,2For the dry air enthalpy under sintering circular-cooler waste heat boiler second pipe wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler waste heat boiler first pipe wind temperature, kJ/Nm3；
For the vapor enthalpy under sintering circular-cooler waste heat boiler second pipe wind temperature, kJ/Nm3；
According to sintering circular-cooler waste heat boiler import flue gas total flow, sintering circular-cooler waste heat boiler first pipe take wind enthalpy, Sintering circular-cooler waste heat boiler second pipe takes wind enthalpy, waste heat boiler import flue gas enthalpy, iterates to calculate under standard state The first and second pipeline of sintering circular-cooler waste heat boiler takes wind flow, specific steps are as follows:
1) the sintering circular-cooler waste heat boiler first pipe set under a standard state takes wind flow V1 0；
2) wind flow V is taken according to the sintering circular-cooler waste heat boiler first pipe under the standard state of setting1 0Obtain standard state Under sintering circular-cooler waste heat boiler second pipe take wind flowThe calculating formula utilized are as follows:
Wherein,
Wind flow, Nm are taken 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 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler first pipe under standard state3/h；
3) wind enthalpy, sintering circular-cooler waste heat boiler second is taken to manage according to the sintering circular-cooler waste heat boiler first pipe found out It is distinguished and admirable that road takes the sintering circular-cooler waste heat boiler second pipe under wind enthalpy, waste heat boiler import flue gas enthalpy, standard state to take Sintering circular-cooler waste heat boiler import flue gas total flow under amount and standard state calculates the sintering circular-cooler under standard state Waste heat boiler first pipe takes wind flowThe calculating formula utilized are as follows:
Wherein,
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler first pipe under the standard state that is calculated3/h；
For the sintering circular-cooler waste heat boiler import flue gas total flow under standard state, Nm3/h；
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
HinFor waste heat boiler import flue gas enthalpy, kJ/Nm3；
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler first pipe3；
H2Wind enthalpy, kJ/Nm are taken for sintering circular-cooler waste heat boiler second pipe3；
4) threshold epsilon is preset, the sintering circular-cooler waste heat boiler first pipe under the standard state for calculating acquisition is taken into wind flowWind flow V is taken with the sintering circular-cooler waste heat boiler first pipe under the standard state of setting1 0It is compared:
IfThen the sintering circular-cooler waste heat boiler first pipe 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 0Average value as the sintering circular-cooler under the standard state of new setting Waste heat boiler first pipe takes wind flow, return step 1)；
Wind flow is taken to calculate under virtual condition according to the first and second pipeline of sintering circular-cooler waste heat boiler under the standard state The first and second pipeline of sintering circular-cooler waste heat boiler take the utilization calculating formula of wind flow are as follows:
Wherein,
V1Wind flow, m are taken for the sintering circular-cooler waste heat boiler first pipe under virtual condition3/h；
V1 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler first pipe under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lWind pressure, Pa are taken for sintering circular-cooler waste heat boiler first pipe；
tf,1For sintering circular-cooler waste heat boiler first pipe wind temperature, DEG C；
V2Wind flow, m are taken for the sintering circular-cooler waste heat boiler second pipe under virtual condition3/h；
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler second pipe under standard state3/h；
pf,2Wind pressure, Pa are taken for sintering circular-cooler waste heat boiler second pipe；
tf,2For sintering circular-cooler waste heat boiler second pipe wind temperature, DEG C.
2. a kind of pair takes wind binary channels 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 Hot steam flow, waste heat boiler low-temperature zone superheated steam enthalpy, waste heat boiler import water supply enthalpy calculate waste heat using the data of acquisition Boiler effective use heat；
The steam-laden pressure under local atmospheric pressure, relative humidity of atomsphere, environment temperature is obtained, the data meter of acquisition is utilized The absolute humidity for calculating air calculates the volume accounting for taking vapor in the flue gas in air piping using the absolute humidity of air；Or Setting takes the volume accounting of vapor in the flue gas in air piping；
According to the dry air under the volume accounting of vapor, sintering circular-cooler high temperature section wind temperature in the flue gas taken in air piping 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 Gas enthalpy, the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, waste heat boiler high temperature overheater exiting flue gas temperature Dry air enthalpy, the vapor enthalpy under waste heat boiler high temperature overheater exit gas temperature, heat boiler outlet under degree The vapor enthalpy under dry air enthalpy, smoke temperature at outlet of waste heat boiler under flue-gas temperature 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 is taken to efficiently use according to the sintering circular-cooler waste heat boiler high temperature section under the 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 calculated under standard state takes wind flow；
The sintered ring under wind flow, standard state is taken according to the sintering circular-cooler waste heat boiler high temperature section under the 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, and virtual condition is calculated 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.
3. a kind of pair according to claim 2 takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, It is characterized in that, the calculating formula for calculating effective use heat are as follows:
Ql=Dgr1(hgr1-hgs)+Dgr2(hgr2-hgs), wherein
QlHeat, kJ/h are efficiently used for waste heat boiler；
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 water supply enthalpy, kJ/kg.
4. a kind of pair according to claim 2 takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, It is characterized in that, the steam-laden pressure obtained under local atmospheric pressure, relative humidity of atomsphere, environment temperature, utilizes The data of acquisition calculate the absolute humidity of air, calculating formula are as follows:
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 environment temperature, Pa.
5. according to claim 2 pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, special Sign is that the absolute humidity using air calculates the volume accounting for taking vapor in air piping, calculating formula are as follows:
Wherein,
dkFor air absolute humidity, kg/kg (dry air).
6. a kind of pair according to claim 2 takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, It is characterized in that, the 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 are as follows:
Wherein,
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；
H2Wind enthalpy, kJ/Nm are taken 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 taken in air piping；
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。
7. a kind of pair according to claim 2 takes wind binary channels 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 calculated under standard state take wind flow, calculating formula are as follows:
Wherein,
V1 0Wind flow, Nm are taken 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；
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；
HgrqFor waste heat boiler high pressure section superheater outlet flue gas enthalpy, kJ/Nm3。
8. a kind of pair according to claim 2 takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, It is characterized in that, the sintering circular-cooler waste heat boiler low-temperature zone calculated under standard state takes the calculating formula of wind flow are as follows:
Wherein,
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
QlHeat, kJ/h are efficiently used for waste heat boiler；
For waste heat boiler errors；
V1 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1Wind enthalpy, kJ/Nm are taken for sintering circular-cooler high temperature section3；
H2Wind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3。
9. a kind of pair according to claim 2 takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, It is characterized in that, the sintering circular-cooler waste heat boiler high temperature section calculated under virtual condition takes under wind flow and virtual condition Sintering circular-cooler waste heat boiler low-temperature zone takes wind flow, calculating formula are as follows:
Wherein,
V1Wind flow, m are taken for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；
V1 0Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h；
paFor local atmospheric pressure, Pa；
pf,lWind pressure, Pa are taken for sintering circular-cooler high temperature section；
tf,lFor sintering circular-cooler high temperature section wind temperature, DEG C；
V2Wind flow, m are taken for the sintering circular-cooler waste heat boiler low-temperature zone under virtual condition3/h；
Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h；
pf,2Wind pressure, Pa are taken for sintering circular-cooler low-temperature zone；
tf,2For sintering circular-cooler low-temperature zone wind temperature, DEG C.
CN201610890347.7A 2016-08-30 2016-10-12 A kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method Active CN106440834B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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