CN106403631B - It is double that wind binary channels sintering circular-cooler waste heat boiler is taken to take distinguished and admirable measuring method - Google Patents

It is double that wind binary channels sintering circular-cooler waste heat boiler is taken to take distinguished and admirable measuring method Download PDF

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CN106403631B
CN106403631B CN201610779388.9A CN201610779388A CN106403631B CN 106403631 B CN106403631 B CN 106403631B CN 201610779388 A CN201610779388 A CN 201610779388A CN 106403631 B CN106403631 B CN 106403631B
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wind
waste heat
heat boiler
sintering circular
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CN106403631A (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
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • 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
    • F27D17/004—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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

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, take wind pipeline straight pipe longer mainly for one, another takes wind pipeline straight pipe shorter, it is shorter when taking the wind pipeline can not to meet flow measurement condition, indirect gain is shorter to take wind pipeline to take wind flow and design, including choosing two wherein conducts first taken in wind pipeline and taking wind pipeline, another conduct second takes wind pipeline；First take wind pipeline wind flow is taken to be obtained by measurement, and what second took wind pipeline takes wind flow to be obtained by calculation：Including, obtain valid data, the heat that efficiently uses of waste heat boiler is calculated, sintering circular-cooler first and second is solved and wind pipeline is taken to take wind enthalpy, then takes wind pipeline that wind flow is taken to calculate sintering circular-cooler waste heat boiler second according to sintering circular-cooler waste heat boiler first and wind pipeline is taken to take wind flow.

Description

It is double that wind binary channels sintering circular-cooler waste heat boiler is taken to take distinguished and admirable measuring method
Technical field
The present invention relates to the sintering arts of steel and iron industry more particularly to a kind of pair to take wind binary channels sintering circular-cooler waste heat pot Stove takes distinguished and admirable measuring method.
Background technology
In steel manufacture process, sintering circuit energy consumption is only second to Iron-smelting, account for steel production total energy consumption 10%~ 12%, and in sintering circuit, the heat that air 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 of the waste heat recovery project of steel industry and investment It is greatly lowered, while the efficiency of waste-heat recovery device significantly improves, large quantities of middle-size and small-size iron and steel enterprises waste heat that also starts one after another returns Receipts project, sintering circular-cooler waste heat boiler 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 recovery section, which takes air quantity (exhaust gas volumn), Input condition and residual neat recovering system operation one of main monitoring parameters, however, due to sintering circular-cooler waste heat recovery System requirements floor space is larger, and actual place condition takes wind mostly all than relatively limited (especially transformation project) for double For (two sections of ring cold machine high temperature section and ring cold machine low-temperature zone take wind) dual channel system, it is difficult to ensure that two sections take wind pipeline that can have Longer straight pipe often occurs in which that one takes wind pipeline longer in Practical Project, and another takes wind pipeline shorter Situation.And still further aspect, since exhaust gas volumn (air quantity) is larger, ring cold machine is caused to take very big (the large-scale ring cold machine of wind pipeline caliber Wind pipeline caliber is taken to be even as high as 3~4m), and flow measurement for the length of front and rear straight pipe have comparison it is stringent will It asks, thus engineering site is difficult to meet the flow measurement of wind pipeline (that especially shorter root takes wind pipeline) is taken to require, this It inevitably results in and distinguished and admirable measurements is taken to greatly deviate from actual value, so as 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 possess at the scene it is measured directly under the conditions of indirect gain is double takes wind double Passage sintering circular-cooler waste heat boiler takes wind flow, and authentic data is provided for the operation monitoring and operation adjustment of waste heat boiler, With important Practical significance.
The content of the invention
It can obtain in view of the above-mentioned problems, the present invention provides one kind and double wind binary channels sintering circular-cooler waste heat boiler is taken to take wind The double of flow take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method.
In order to achieve the above objectives, the present invention is double takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, The measuring method is：
Choosing two wherein one taken in wind pipeline takes wind pipeline to take wind pipeline as first, and another takes wind pipeline to make Wind pipeline is taken for second；
What measurement first took wind pipeline takes wind flow；
Calculating second takes wind pipeline to take wind flow, specifically includes following steps：
According to waste heat boiler high pressure section superheat steam flow, waste heat boiler high pressure section superheated steam enthalpy, waste heat boiler low pressure Section superheat steam flow, waste heat boiler low pressure stage superheated steam enthalpy, waste heat boiler import feedwater enthalpy, obtain waste heat boiler it is effective Utilize heat；
Take wind pipeline that wind flow is taken to obtain under standard state according to the sintering circular-cooler waste heat boiler first under virtual condition Sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind flow；
Wind pipeline wind temperature, sintering are taken according to smoke temperature at outlet of waste heat boiler, sintering circular-cooler waste heat boiler first Ring cold machine waste heat boiler second takes wind pipeline wind temperature and the volume accounting of vapor in flue gas in wind pipeline is taken to obtain Heat boiler outlet flue gas enthalpy, sintering circular-cooler waste heat boiler first take wind pipeline to take wind enthalpy and sintering circular-cooler waste heat Boiler second takes wind pipeline to take wind enthalpy；
According to the sintering circular-cooler waste heat boiler first under standard state wind pipeline is taken to take wind flow, waste heat boiler effectively sharp With heat, sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind enthalpy, sintering circular-cooler waste heat boiler second that wind pipeline is taken to take The sintering circular-cooler waste heat boiler second that wind enthalpy is obtained under standard state takes wind pipeline to take wind flow；
According to the sintering circular-cooler waste heat boiler second under standard state wind pipeline taken to take wind flow, local atmospheric pressure, burnt Knot ring cold machine waste heat boiler second takes wind pressure, the second wind temperature of sintering circular-cooler waste heat boiler to calculate and obtains under virtual condition Sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind flow.
Preferably, double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, the acquisition waste heat pot Stove efficiently use heat calculating formula be：
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 feedwater enthalpy, kJ/kg.
Preferably, double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, it is described according to actual shape Sintering circular-cooler waste heat boiler first under state takes wind pipeline that wind flow is taken to obtain the sintering circular-cooler waste heat pot under standard state Stove first takes wind pipeline to take wind flow, and calculating formula is：
Wherein,
V1 0For the sintering circular-cooler waste heat boiler first under standard state wind pipeline is taken to take wind flow, Nm3/h；
V1For the sintering circular-cooler waste heat boiler first under virtual condition wind pipeline is taken to take wind flow, m3/h；
paFor local atmospheric pressure, Pa；
pf,lFor sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind pressure, Pa；
tf,1Wind pipeline wind temperature is taken for sintering circular-cooler waste heat boiler first, DEG C.
Preferably, double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, it is described according to waste heat pot Outlet of still flue-gas temperature, sintering circular-cooler waste heat boiler first take wind pipeline wind temperature, sintering circular-cooler waste heat boiler second It takes wind pipeline wind temperature and the volume accounting of vapor in flue gas in wind pipeline is taken to calculate and obtain heat boiler outlet cigarette Gas enthalpy, sintering circular-cooler waste heat boiler first take wind pipeline that wind enthalpy and sintering circular-cooler waste heat boiler second is taken to take air hose Road takes wind enthalpy, and calculating formula is：
Wherein,
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1For sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind enthalpy, kJ/Nm3；
H2For sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind enthalpy, kJ/Nm3；
K is the volume accounting of vapor in the flue gas taken in wind pipeline ,-；
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；
hgk,1The dry air enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler first3；
The vapor enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler first3；
hgk,2The dry air enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler second3；
The vapor enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler second3。
Preferably, double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, it is described according to standard shape Sintering circular-cooler waste heat boiler first under state takes wind pipeline that wind flow, waste heat boiler is taken to efficiently use heat, heat boiler outlet Flue gas enthalpy, sintering circular-cooler waste heat boiler first take wind pipeline that wind enthalpy, sintering circular-cooler waste heat boiler second is taken to take air hose The sintering circular-cooler waste heat boiler second that road takes wind enthalpy to obtain under standard state takes wind pipeline to take wind flow, and calculating formula is：
Wherein,
For the sintering circular-cooler waste heat boiler second under standard state wind pipeline is taken to take wind flow, Nm3/h；
QlHeat, kJ/h are efficiently used for waste heat boiler；
For waste heat boiler errors, setting value can be taken as；
V1 0For the sintering circular-cooler waste heat boiler first under standard state wind pipeline is taken to take wind flow, Nm3/h；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1For sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind enthalpy, kJ/Nm3；
H2For sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind enthalpy, kJ/Nm3。
Preferably, double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, it is described according to standard shape Sintering circular-cooler waste heat boiler second under state takes wind pipeline that wind flow is taken to obtain the sintering circular-cooler waste heat pot under virtual condition Stove second takes wind pipeline to take wind flow, and calculating formula is：
Wherein,
V2For the sintering circular-cooler waste heat boiler second under virtual condition wind pipeline is taken to take wind flow, m3/h；
paFor local atmospheric pressure, Pa；
pf,2For sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind pressure, Pa；
tf,2Wind pipeline wind temperature is taken for sintering circular-cooler waste heat boiler second, DEG C；
For the sintering circular-cooler waste heat boiler second under standard state wind pipeline is taken to take wind flow, Nm3/h。
Preferably, double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, described first takes air hose Road corresponds to ring cold machine high temperature section and takes wind, and described second, which takes wind pipeline to correspond to ring cold machine low-temperature zone, takes wind.
Preferably, double take wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, described first takes air hose Road corresponds to ring cold machine low-temperature zone and takes wind, and described second, which takes wind pipeline to correspond to ring cold machine high temperature section, takes wind.
Of the invention pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, and wind binary channels is taken for double Sintering circular-cooler waste heat boiler takes the measurement of wind flow, and running data indirect gain pair by waste heat boiler takes wind binary channels to be sintered Ring cold machine waste heat boiler takes wind flow, does not possess the straight pipe condition required by flow measurement at the scene, and then causes to take wind It is especially effective in the case that flow can not be measured directly or measurement accuracy can not ensure, as a result can be that the operation of waste heat boiler is supervised Depending on providing authentic data with operation adjustment, there is important Practical significance.
Description of the drawings
Fig. 1 is sintering circular-cooler waste heat boiler waste heat reclaiming process flow chart；A trolley traffic directions, B chargings, 1 waste heat pot Stove, 2 ring cold machine high temperature sections, 3 ring cold machine low-temperature zones, 4 ring cold machine high temperature sections take wind pipeline, and 5 ring cold machine low-temperature zones take wind pipeline, and 6 Waste heat boiler smoke discharging pipe.
Fig. 2 is sintering circular-cooler waste heat boiler waste heat reclaiming process flow chart；A trolley traffic directions, B chargings, 1 waste heat pot 2 ring cold machine high temperature section of stove sintering circular-cooler waste heat boiler waste heat reclaiming process flow chart, 3 ring cold machine low-temperature zones, 4 ring cold machine high temperature Section takes wind pipeline, and 5 ring cold machine low-temperature zones take wind pipeline, 6 waste heat boiler smoke discharging pipes.
Specific embodiment
With reference to Figure of description, the present invention will be further described.
Embodiment one
Described first, which takes wind pipeline to correspond to high temperature section, takes wind flow, using actual measured value；Second that wind pipeline is taken to correspond to is low Temperature section takes wind flow, and using flexible measurement method, step is：
1st, the operation data of sintering circular-cooler waste heat boiler are gathered, including：Ring cold machine high temperature section takes wind flow, ring cold machine high Temperature section wind temperature, ring cold machine high temperature section take wind pressure, ring cold machine low-temperature zone wind temperature, ring cold machine low-temperature zone take wind pressure, Smoke temperature at outlet of waste heat boiler, atmospheric pressure, waste heat boiler carbonated drink side operating parameter (including, high pressure section superheat steam temperature, High pressure section superheated steam pressure, high pressure section superheat steam flow, low pressure stage superheat steam temperature, low pressure stage superheated steam pressure, Low pressure stage superheat steam flow, waste heat boiler import feed temperature, waste heat boiler import feed pressure, waste heat boiler import feedwater Flow).
2nd, the input data obtained to step 1 pre-processes, and including bad point processing and data smoothing processing, is used for Solve the valid data that sintering circular-cooler waste heat boiler low-temperature zone takes wind flow.
3rd, the valid data obtained according to step 2 obtain sintering circular-cooler waste heat boiler low-temperature zone and take wind flow, specific to wrap Include following steps：
3.1 calculating waste heat boilers efficiently use 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 computation tables look-up to obtain；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2It is low for waste heat boiler Section superheated steam enthalpy is pressed, kJ/kg is calculated or looked by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature Table obtains；hgsFor waste heat boiler import feedwater enthalpy, kJ/kg is fed water by waste heat boiler import feed pressure and waste heat boiler import Temperature computation tables look-up to obtain.
Sintering circular-cooler waste heat boiler high temperature section under 3.2 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；VhFor reality Sintering circular-cooler waste heat boiler high temperature section under state takes wind flow, m3/h；paFor 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.
3.3 calculate sintering circular-cooler heat boiler outlet flue gas enthalpy respectively, sintering circular-cooler high temperature section take wind enthalpy with And sintering circular-cooler low-temperature zone takes wind enthalpy：
Wherein, HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；HhWind enthalpy, kJ/ are taken for sintering circular-cooler high temperature section Nm3；HlWind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3；K is the volume accounting of vapor in the flue gas taken in wind pipeline, It can be taken as setting value；hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet Flue-gas temperature calculates or tables look-up to obtain；For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by remaining Heat boiler exit gas temperature calculates or tables look-up to obtain；hgk,hFor the dry air enthalpy under sintering circular-cooler high temperature section wind temperature Value, kJ/Nm3, calculated by sintering circular-cooler high temperature section wind temperature or table look-up to obtain；It is taken for sintering circular-cooler high temperature section Vapor enthalpy under air temperature, kJ/Nm3, calculated by sintering circular-cooler high temperature section wind temperature or table look-up to obtain；hgk,lTo burn Tie the dry air enthalpy under ring cold machine low-temperature zone wind temperature, kJ/Nm3, by sintering circular-cooler low-temperature zone wind temperature calculate or It tables look-up to obtain；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by sintering circular-cooler low temperature Section wind temperature calculates or tables look-up to obtain.
Sintering circular-cooler waste heat boiler low-temperature zone under 3.4 calculating 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；QlFor waste heat Boiler efficiently uses heat, kJ/h；For waste heat boiler errors, setting value can be taken as；For the sintered ring under standard state Cold waste heat boiler high temperature section takes wind flow, Nm3/h；HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；HhIt is cold for sintered ring Machine high temperature section takes wind enthalpy, kJ/Nm3；HlWind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3。
The 3.5 sintering circular-cooler waste heat boiler low-temperature zones being calculated under virtual condition take wind flow Vl：
Wherein, VlWind flow, m are taken for the sintering circular-cooler waste heat boiler low-temperature zone under virtual condition3/h；paIt is big for locality Air pressure, Pa；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；Vl 0 Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler low-temperature zone under standard state3/h。
Embodiment two
Described first, which takes wind pipeline to correspond to low-temperature zone, takes wind flow, using actual measured value；Second takes wind pipeline to correspond to height Temperature section takes wind flow, and using flexible measurement method, step is：
1st, the operation data of sintering circular-cooler waste heat boiler are gathered, including：Ring cold machine low-temperature zone takes wind flow, ring cold machine low Temperature section wind temperature, ring cold machine low-temperature zone take wind pressure, ring cold machine high temperature section wind temperature, ring cold machine high temperature section take wind pressure, Smoke temperature at outlet of waste heat boiler, atmospheric pressure, waste heat boiler carbonated drink side operating parameter (including, high pressure section superheat steam temperature, High pressure section superheated steam pressure, high pressure section superheat steam flow, low pressure stage superheat steam temperature, low pressure stage superheated steam pressure, Low pressure stage superheat steam flow, waste heat boiler import feed temperature, waste heat boiler import feed pressure, waste heat boiler import feedwater Flow).
2nd, the input data obtained to step 1 pre-processes, and including bad point processing and data smoothing processing, is used for Solve the valid data that sintering circular-cooler waste heat boiler high temperature section takes wind flow.
3rd, the valid data obtained according to step 2 obtain sintering circular-cooler waste heat boiler high temperature section and take wind flow, specific to wrap Include following steps：
3.1 calculating waste heat boilers efficiently use 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 computation tables look-up to obtain；Dgr2For waste heat boiler low pressure stage superheat steam flow, kg/h；hgr2It is low for waste heat boiler Section superheated steam enthalpy is pressed, kJ/kg is calculated or looked by waste heat boiler low pressure stage superheated steam pressure and low pressure stage superheat steam temperature Table obtains；hgsFor waste heat boiler import feedwater enthalpy, kJ/kg is fed water by waste heat boiler import feed pressure and waste heat boiler import Temperature computation tables look-up to obtain.
Sintering circular-cooler waste heat boiler low-temperature zone under 3.2 calculating 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；VlFor reality Sintering circular-cooler waste heat boiler low-temperature zone under state takes wind flow, m3/h；paFor local atmospheric pressure, Pa；pf,lIt is cold for sintered ring Machine low-temperature zone takes wind pressure, Pa；tf,lFor sintering circular-cooler low-temperature zone wind temperature, DEG C.
3.3 calculate sintering circular-cooler heat boiler outlet flue gas enthalpy respectively, sintering circular-cooler high temperature section take wind enthalpy with And sintering circular-cooler low-temperature zone takes wind enthalpy：
Wherein, HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；HhWind enthalpy, kJ/ are taken for sintering circular-cooler high temperature section Nm3；HlWind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3；K is the volume accounting of vapor in the flue gas taken in wind pipeline, It can be taken as setting value；hgk,outFor the dry air enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by heat boiler outlet Flue-gas temperature calculates or tables look-up to obtain；For the vapor enthalpy under smoke temperature at outlet of waste heat boiler, kJ/Nm3, by remaining Heat boiler exit gas temperature calculates or tables look-up to obtain；hgk,hFor the dry air enthalpy under sintering circular-cooler high temperature section wind temperature Value, kJ/Nm3, calculated by sintering circular-cooler high temperature section wind temperature or table look-up to obtain；It is taken for sintering circular-cooler high temperature section Vapor enthalpy under air temperature, kJ/Nm3, calculated by sintering circular-cooler high temperature section wind temperature or table look-up to obtain；hgk,lTo burn Tie the dry air enthalpy under ring cold machine low-temperature zone wind temperature, kJ/Nm3, by sintering circular-cooler low-temperature zone wind temperature calculate or It tables look-up to obtain；For the vapor enthalpy under sintering circular-cooler low-temperature zone wind temperature, kJ/Nm3, by sintering circular-cooler low temperature Section wind temperature calculates or 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；QlFor waste heat Boiler efficiently uses heat, kJ/h；For waste heat boiler errors, setting value can be taken as；Vl 0For the sintered ring under standard state Cold waste heat boiler low-temperature zone takes wind flow, Nm3/h；HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；HhIt is cold for sintered ring Machine high temperature section takes wind enthalpy, kJ/Nm3；HlWind enthalpy, kJ/Nm are taken for sintering circular-cooler low-temperature zone3。
The 3.5 sintering circular-cooler waste heat boiler high temperature sections being calculated under virtual condition take wind flow Vh：
Wherein, VhWind flow, m are taken for the sintering circular-cooler waste heat boiler high temperature section under virtual condition3/h；paIt is big for locality Air pressure, Pa；pf,hWind pressure, Pa are taken for sintering circular-cooler high temperature section；tf,hFor sintering circular-cooler high temperature section wind temperature, DEG C； Wind flow, Nm are taken for the sintering circular-cooler waste heat boiler high temperature section under standard state3/h。
More than, it is only presently preferred embodiments of the present invention, but protection scope 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, the change or replacement that can be readily occurred in should all be covered those skilled in the art Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection domain that claim is defined.

Claims (7)

1. a kind of pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, which is characterized in that
Choosing waste heat boiler on sintering circular-cooler takes wherein one in wind pipeline wind pipeline is taken to take wind pipeline as first, another Root takes wind pipeline to take wind pipeline as second；
What measurement first took wind pipeline takes wind flow；
Calculating second takes wind pipeline to take wind flow, specifically includes following steps：
According to waste heat boiler high pressure section superheat steam flow, waste heat boiler high pressure section superheated steam enthalpy, waste heat boiler low pressure stage mistake Hot steam flow, waste heat boiler low pressure stage superheated steam enthalpy and waste heat boiler import feedwater enthalpy obtain efficiently using for waste heat boiler Heat；
Take wind pipeline that wind flow is taken to obtain the burning under standard state according to the sintering circular-cooler waste heat boiler first under virtual condition Knot ring cold machine waste heat boiler first takes wind pipeline to take wind flow；
Take wind pipeline wind temperature, sintered ring cold according to smoke temperature at outlet of waste heat boiler, sintering circular-cooler waste heat boiler first Machine waste heat boiler second takes wind pipeline wind temperature and the volume accounting of vapor in flue gas in wind pipeline is taken to obtain waste heat Boiler export flue gas enthalpy, sintering circular-cooler waste heat boiler first take wind pipeline to take wind enthalpy and sintering circular-cooler waste heat boiler Second takes wind pipeline to take wind enthalpy；
Take wind pipeline that wind flow, waste heat boiler is taken to efficiently use according to the sintering circular-cooler waste heat boiler first under standard state Heat, heat boiler outlet flue gas enthalpy, sintering circular-cooler waste heat boiler first take wind pipeline to take wind enthalpy, sintering circular-cooler waste heat It is distinguished and admirable that the sintering circular-cooler waste heat boiler second that boiler second takes wind pipeline that wind enthalpy is taken to obtain under standard state takes wind pipeline to take Amount；
According to the sintering circular-cooler waste heat boiler second under standard state wind pipeline is taken to take wind flow, local atmospheric pressure, sintered ring Cold waste heat boiler second takes wind pipeline to take wind pressure, sintering circular-cooler waste heat boiler second that the calculating of wind pipeline wind temperature is taken to obtain The sintering circular-cooler waste heat boiler second obtained under virtual condition takes wind pipeline to take wind flow.
2. according to claim 1 pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, special Sign is that the calculating formula for efficiently using heat of the acquisition waste heat boiler is：
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 feedwater enthalpy, kJ/kg.
3. according to claim 1 pair takes wind binary channels sintering circular-cooler waste heat boiler to take its feature of distinguished and admirable measuring method It is, the sintering circular-cooler waste heat boiler first according under virtual condition takes wind pipeline that wind flow is taken to obtain under standard state Sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind flow, calculating formula is：
Wherein,
V1 0For the sintering circular-cooler waste heat boiler first under standard state wind pipeline is taken to take wind flow, Nm3/h；
V1For the sintering circular-cooler waste heat boiler first under virtual condition wind pipeline is taken to take wind flow, m3/h；
paFor local atmospheric pressure, Pa；
pf,lFor sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind pressure, Pa；
tf,1Wind pipeline wind temperature is taken for sintering circular-cooler waste heat boiler first, DEG C.
4. according to claim 1 pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, special Sign is, described to take wind pipeline wind temperature according to smoke temperature at outlet of waste heat boiler, sintering circular-cooler waste heat boiler first, burn Knot ring cold machine waste heat boiler second takes wind pipeline wind temperature and takes the volume accounting of vapor in flue gas in wind pipeline, meter It calculates and obtains heat boiler outlet flue gas enthalpy, sintering circular-cooler waste heat boiler first takes wind pipeline to take wind enthalpy and sintered ring cold Machine waste heat boiler second takes wind pipeline to take wind enthalpy, and calculating formula is：
<mrow> <msub> <mi>H</mi> <mrow> <mi>o</mi> <mi>u</mi> <mi>t</mi> </mrow> </msub> <mo>=</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>-</mo> <mi>k</mi> <mo>)</mo> </mrow> <msub> <mi>h</mi> <mrow> <mi>g</mi> <mi>k</mi> <mo>,</mo> <mi>o</mi> <mi>u</mi> <mi>t</mi> </mrow> </msub> <mo>+</mo> <msub> <mi>kh</mi> <mrow> <msub> <mi>H</mi> <mn>2</mn> </msub> <mi>O</mi> <mo>,</mo> <mi>o</mi> <mi>u</mi> <mi>t</mi> </mrow> </msub> </mrow>
<mrow> <msub> <mi>H</mi> <mn>1</mn> </msub> <mo>=</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>-</mo> <mi>k</mi> <mo>)</mo> </mrow> <msub> <mi>h</mi> <mrow> <mi>g</mi> <mi>k</mi> <mo>,</mo> <mn>1</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>kh</mi> <mrow> <msub> <mi>H</mi> <mn>2</mn> </msub> <mi>O</mi> <mo>,</mo> <mn>1</mn> </mrow> </msub> </mrow>
Wherein,
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1For sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind enthalpy, kJ/Nm3；
H2For sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind enthalpy, kJ/Nm3；
K is the volume accounting of vapor in the flue gas taken in wind pipeline；
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；
hgk,1The dry air enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler first3；
The vapor enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler first3；
hgk,2The dry air enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler second3；
The vapor enthalpy under wind pipeline wind temperature, kJ/Nm are taken for sintering circular-cooler waste heat boiler second3。
5. according to claim 1 pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, special Sign is that the sintering circular-cooler waste heat boiler first according under standard state takes wind pipeline that wind flow, waste heat boiler is taken to have Effect takes wind pipeline to take wind enthalpy, sintered ring cold using heat, heat boiler outlet flue gas enthalpy, sintering circular-cooler waste heat boiler first The sintering circular-cooler waste heat boiler second that machine waste heat boiler second takes wind pipeline that wind enthalpy is taken to obtain under standard state takes wind pipeline Wind flow is taken, calculating formula is：
Wherein,
For the sintering circular-cooler waste heat boiler second under standard state wind pipeline is taken to take wind flow, Nm3/h；
QlHeat, kJ/h are efficiently used for waste heat boiler；
For waste heat boiler errors；
V1 0For the sintering circular-cooler waste heat boiler first under standard state wind pipeline is taken to take wind flow, Nm3/h；
HoutFor heat boiler outlet flue gas enthalpy, kJ/Nm3；
H1For sintering circular-cooler waste heat boiler first wind pipeline is taken to take wind enthalpy, kJ/Nm3；
H2For sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind enthalpy, kJ/Nm3。
6. according to claim 1 pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, special Sign is that the sintering circular-cooler waste heat boiler second according under standard state takes wind pipeline that wind flow is taken to obtain virtual condition Under sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind flow, calculating formula is：
Wherein,
V2For the sintering circular-cooler waste heat boiler second under virtual condition wind pipeline is taken to take wind flow, m3/h；
paFor local atmospheric pressure, Pa；
pf,2For sintering circular-cooler waste heat boiler second wind pipeline is taken to take wind pressure, Pa；
tf,2Wind pipeline wind temperature is taken for sintering circular-cooler waste heat boiler second, DEG C；
V2 0For the sintering circular-cooler waste heat boiler second under standard state wind pipeline is taken to take wind flow, Nm3/h。
7. according to claim 1 pair takes wind binary channels sintering circular-cooler waste heat boiler to take distinguished and admirable measuring method, special Sign is, described first, which takes wind pipeline to correspond to ring cold machine high temperature section, takes wind pipeline, and described second that wind pipeline is taken to correspond to ring cold machine is low Temperature section takes wind pipeline；Or described first take wind pipeline to correspond to ring cold machine low-temperature zone to take wind pipeline, described second takes wind pipeline to correspond to Ring cold machine high temperature section takes wind pipeline.
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