CN107392491A - A kind of method for evaluating cold rolled strip steel production complex energy efficiency - Google Patents
A kind of method for evaluating cold rolled strip steel production complex energy efficiency Download PDFInfo
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- CN107392491A CN107392491A CN201710649959.1A CN201710649959A CN107392491A CN 107392491 A CN107392491 A CN 107392491A CN 201710649959 A CN201710649959 A CN 201710649959A CN 107392491 A CN107392491 A CN 107392491A
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Abstract
The invention discloses a kind of method for evaluating cold rolled strip steel production complex energy efficiency, comprise the following steps：The capacity usage ratio of cold rolled strip steel production producing line unit is calculated, evaluates the efficiency result of unit process parameter optimizing；The ratio energy of cold rolled strip steel production process finished product is calculated, evaluates the efficiency result of production process technology route optimization；And then evaluate complex energy efficiency.The energy efficiency that the present invention produces from multiple angles to cold rolling is described, and makes the evaluation to complex energy efficiency more accurate.It is easy to later cold rolling to produce efficiency Optimization Work the accurate evaluation of complex energy efficiency.
Description
Technical field
The present invention relates to the energy optimization field of cold mill complex, more particularly to a kind of evaluation cold rolled strip steel production complex energy
The method of efficiency.
Background technology
Cold-rolling process energy consumption is huge, and the research at present on cold rolling energy consumption is seldom, the calculating on cold rolling energy efficiency
Research be also difficult to find that.
Cold rolling is as semicontinuous manufacture, multi-machine collaborative work, mixed tensor input system of processing, its pickling rolling production
From the point of view of line, continuous annealing production line, galvanization production line etc. are independent, continuous production type is belonged to；But whole cold rolling production, coil of strip
To pass through these different production lines, now cold rolling process can be classified as discrete manufacture again from total flow, so
It is referred to as half discrete manufacture to have cold rolling.Among sour rolling line, energy input has electrical power input, in the zinc-plated grade production line of continuous annealing, energy
Amount input inputs for thermal power, therefore also is difficult to simple useful work than upper total work, to weigh its overall energy efficiency.Again
It is concentrated mainly on plus existing cold rolling technology focus in the factors such as product quality and delivery date, seldom considers the energy of cold rolling
Amount efficiency, thus it is seldom in the research of cold rolling field energy efficiency.
In cold rolling energy saving research, energy efficiency will be important evaluation index.Cold rolling process is one
System, it is necessary to a variety of methods and carry out optimized for energy efficiency to it from multiple angles and evaluate, to different optimization methods and
Different optimum results, it is also difficult to weighed with general simple energy efficiency.
In other manufacture fields, the research of energy efficiency is but developing rapidly, especially digit ctrol machine tool field, closely
There is within several years the much research on energy efficiency.Cold Rolling System has similarity with machine tool system at many aspects, such as
Discrete manufacture is all included, is all included by unit of variable-frequency motor control etc., therefore the computational methods of many energy efficiencies can borrow
Mirror.
At present, without a kind of synthesis cold rolling energy efficiency computational methods, cold rolling production in, understand production process in
The efficiency that uses of energy, it will be appreciated that Energy Expenditure Levels in production process, and evaluate and to weigh subsequent power efficiency excellent
The result of change.
The content of the invention
In view of this, the embodiment provides a kind of Energy Expenditure Levels that can accurately understand in production process,
And evaluate and weigh the complex energy efficiency calculation method of the result cold rolled strip steel production of subsequent power efficiency optimization.
Embodiments of the invention provide a kind of method for evaluating cold rolled strip steel production complex energy efficiency, including following step
Suddenly：
S1. the capacity usage ratio of cold rolled strip steel production producing line unit is calculated, and for evaluating unit process parameter optimizing
Efficiency result；
S2. the ratio energy of cold rolled strip steel production process finished product is calculated, and for evaluating the energy of production process technology route optimization
Imitate result；
S3. the efficiency result of step S1 process parameter optimizings and the efficiency of step S2 production process technology route optimizations are utilized
Evaluation of result complex energy efficiency.
Further, the capacity usage ratio obtains by the following method：
S1.1. power, the general power of unit processing and the power of cold rolling loss needed for unit processing technology are obtained；
S1.2. capacity usage ratio is calculated according to step S1.1 result, calculation formula is as follows：
In formula, PtechFor the power needed for unit processing technology, PallFor the general power of unit processing, PlossLost for cold rolling
Power.
Further, when the unit includes more milling trains, the power of the cold rolling loss is driven including milling train internal mechanical
And rubbed between axle journal and beaming roller consumed energy, the roll of milling train frequently carry out kinetic energy, milling train that speed change is consumed and driven
The iron loss of the variable-frequency motor consumption of dynamic roll and the copper loss of the variable-frequency motor consumption of milling train driving roll.
Further, the ratio can obtain by the following method：
S2.1. each unit is used to add in the gross weight of the strip of acquisition cold rolled strip steel production institute output, cold rolling production process
The power lost in power and cold rolling production process that work is consumed；
S2.2. calculated according to step S2.1 result as follows than energy, calculation formula：
In formula, MsteelFor the gross weight of the strip of a batch cold rolled strip steel production institute output, PtechPosition cold rolling production process
In each unit be used to process consumed power, PlossFor the power lost in cold rolling production process, ρiFor coil of strip i density, bi
For coil of strip i width, RiwFor coil of strip i external diameter, RinFor coil of strip i internal diameter.
Further, the power lost in the cold rolling production process is including each unit in cold rolling production process because itself is former
The energy of the energy, the heat loss of cold-strip steel, the energy of defect ware strip consumption and remaining consumption that thus lose, cold rolling life
The energy that each unit is lost due to self reason in production process includes the frictional dissipation of milling train and the radiating of annealing furnace.
Compared with prior art, the invention has the advantages that：
1. belong to semicontinuous manufacture, multi-source energy input, multimachine co-ordination for cold rolling process, it is unfavorable for describing its whole
The characteristics of body Energy Expenditure Levels, the present invention propose a kind of method for evaluating cold rolling production complex energy efficiency, and this method can
It is described with the energy efficiency produced from multiple angles to cold rolling, makes the evaluation to complex energy efficiency more accurate.
2. the present invention is easy to later cold rolling to produce efficiency Optimization Work the accurate evaluation of complex energy efficiency, from unit
Process parameter optimizing angle to its optimized for energy efficiency, its effect of optimization can be evaluated with capacity usage ratio.Given birth to from cold rolling
Production. art route optimization angle can be utilized than that can evaluate its effect of optimization to its optimized for energy efficiency.
Brief description of the drawings
Fig. 1 is an a kind of flow chart of the method for the complex energy efficiency for evaluating cold rolled strip steel production of the present invention.
Fig. 2 is a curve map of the capacity usage ratio of unit.
Fig. 3 is a flow chart of cold rolled strip steel production.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is further described.
Refer to Fig. 1, the embodiment provides it is a kind of evaluate cold rolled strip steel production complex energy efficiency method,
Comprise the following steps：
S1. the capacity usage ratio of cold rolled strip steel production producing line unit, capacity usage ratio, by the useful work of unit than upper are calculated
Total work calculates, for evaluating the efficiency result of unit process parameter optimizing；
Capacity usage ratio obtains by the following method：
S1.1. power, the general power of unit processing and the power of cold rolling loss needed for unit processing technology are obtained；
S1.2. capacity usage ratio is calculated according to step S1.1 result, calculation formula is as follows：
In formula, PtechFor the power needed for unit processing technology, PallFor the general power of unit processing, PlossLost for cold rolling
Power.
PtechComputation model is shown below：
When unit includes more milling trains, the power of the cold rolling loss includes the transmission of milling train internal mechanical and axle journal and axle
The consumed energy of friction, the roll of milling train frequently carry out the frequency conversion of kinetic energy, milling train driving roll that speed change is consumed between roller
The iron loss of electrical consumption and the copper loss of the variable-frequency motor consumption of milling train driving roll.
The consumed energy balane model of friction is between the transmission of milling train internal mechanical and axle journal and beaming roller：
The computation model that the roll of milling train frequently carries out the kinetic energy that speed change is consumed is：
PtechFor useful work, for rolled plate, remaining is idle work.When carrying out process parameter optimizing, idle work with
Reduction, therefore efficiency is improved, and it is the most suitable to be described using capacity usage ratio.It is illustrated in fig. 2 shown below, the energy utilization of unit
Rate is with changes in process parameters, and ceiling capacity utilization ratio value in rational process parameters range be present.
S2. the ratio energy of cold rolled strip steel production process finished product is calculated, the total matter of finished product in the energy ratio of whole production process consumption
Measure to calculate, for evaluating the efficiency result of production process technology route optimization；
Than that can obtain by the following method：
S2.1. each unit is used to add in the gross weight of the strip of acquisition cold rolled strip steel production institute output, cold rolling production process
The power lost in power and cold rolling production process that work is consumed；
S2.2. calculated according to step S2.1 result as follows than energy, calculation formula：
In formula, MsteelFor the gross weight of the strip of a batch cold rolled strip steel production institute output, PtechPosition cold rolling production process
In each unit be used to process consumed power, PlossFor the power lost in cold rolling production process, ρiFor coil of strip i density, bi
For coil of strip i width, RiwFor coil of strip i external diameter, RinFor coil of strip i internal diameter.
The power lost in cold rolling production process is included each unit in cold rolling production process and lost due to self reason
Energy, heat loss, the energy of defect ware strip consumption and energy of remaining consumption of cold-strip steel, it is each in cold rolling production process
The energy that unit is lost due to self reason includes the frictional dissipation of milling train and the radiating of annealing furnace.
The route of cold rolling production process and the energy consumption of cold-rolling process have close contact.As shown in figure 3, cold rolling is given birth to
The process route complexity of process is produced, when being processed according to conventional process route, the loss of portion of energy may not be one
Caused by milling train, and be due to coil of strip when different producing lines are distributed, caused by multiple aircrew cooperations, thus with capacity usage ratio come
Describe and improper.By the processing of different process routes, the total outputs of cold-rolled products is constant, therefore process route
Optimization be adapted to than can come describe efficiency optimize result.
S3. the efficiency result of step S1 process parameter optimizings and the efficiency of step S2 production process technology route optimizations are utilized
Evaluation of result complex energy efficiency.
The present invention belongs to semicontinuous manufacture, multi-source energy input, multimachine co-ordination for cold rolling process, is unfavorable for describing
The characteristics of its overall power consumption situation, it is proposed that a kind of method for evaluating cold rolling production complex energy efficiency, this method can be with
The energy efficiency produced from multiple angles to cold rolling is described, and makes the evaluation to complex energy efficiency more accurate.The present invention
It is easy to later cold rolling to produce efficiency Optimization Work the accurate evaluation of complex energy efficiency.
In the case where not conflicting, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (5)
- A kind of 1. method for evaluating cold rolled strip steel production complex energy efficiency, it is characterised in that comprise the following steps：S1. the capacity usage ratio of cold rolled strip steel production producing line unit is calculated, and for evaluating the efficiency of unit process parameter optimizing As a result；S2. the ratio energy of cold rolled strip steel production process finished product is calculated, and for evaluating the efficiency knot of production process technology route optimization Fruit；S3. the efficiency result of step S1 process parameter optimizings and the efficiency result of step S2 production process technology route optimizations are utilized Evaluate complex energy efficiency.
- 2. the method for evaluation cold rolled strip steel production complex energy efficiency according to claim 1, it is characterised in that the energy Amount utilization rate obtains by the following method：S1.1. power, the general power of unit processing and the power of cold rolling loss needed for unit processing technology are obtained；S1.2. capacity usage ratio is calculated according to step S1.1 result, calculation formula is as follows：<mrow> <msub> <mi>&eta;</mi> <mi>p</mi> </msub> <mo>=</mo> <mfrac> <msub> <mi>P</mi> <mrow> <mi>t</mi> <mi>e</mi> <mi>c</mi> <mi>h</mi> </mrow> </msub> <msub> <mi>P</mi> <mrow> <mi>a</mi> <mi>l</mi> <mi>l</mi> </mrow> </msub> </mfrac> <mo>=</mo> <mfrac> <msub> <mi>P</mi> <mrow> <mi>t</mi> <mi>e</mi> <mi>c</mi> <mi>h</mi> </mrow> </msub> <mrow> <msub> <mi>P</mi> <mrow> <mi>t</mi> <mi>e</mi> <mi>c</mi> <mi>h</mi> </mrow> </msub> <mo>+</mo> <msub> <mi>P</mi> <mrow> <mi>l</mi> <mi>o</mi> <mi>s</mi> <mi>s</mi> </mrow> </msub> </mrow> </mfrac> </mrow>In formula, PtechFor the power needed for unit processing technology, PallFor the general power of unit processing, PlossFor the power of cold rolling loss.
- 3. the method for evaluation cold rolled strip steel production complex energy efficiency according to claim 2, it is characterised in that the machine When group includes more milling trains, the power of the cold rolling loss includes rubbing between the transmission of milling train internal mechanical and axle journal and beaming roller Energy, the roll of milling train consumed frequently carries out the variable-frequency motor consumption of kinetic energy, milling train driving roll that speed change is consumed Iron loss and the copper loss of the variable-frequency motor consumption of milling train driving roll.
- 4. the method for evaluation cold rolled strip steel production complex energy efficiency according to claim 2, it is characterised in that the ratio It can obtain by the following method：S2.1. each unit is used to process institute in the gross weight of the strip of acquisition cold rolled strip steel production institute output, cold rolling production process The power lost in the power and cold rolling production process of consumption；S2.2. calculated according to step S2.1 result as follows than energy, calculation formula：<mrow> <msub> <mi>&eta;</mi> <mi>b</mi> </msub> <mo>=</mo> <mfrac> <mrow> <msub> <mi>P</mi> <mrow> <mi>t</mi> <mi>e</mi> <mi>c</mi> <mi>h</mi> </mrow> </msub> <mo>+</mo> <msub> <mi>P</mi> <mrow> <mi>l</mi> <mi>o</mi> <mi>s</mi> <mi>s</mi> </mrow> </msub> </mrow> <msub> <mi>M</mi> <mrow> <mi>s</mi> <mi>t</mi> <mi>e</mi> <mi>e</mi> <mi>l</mi> </mrow> </msub> </mfrac> <mo>=</mo> <mfrac> <mrow> <msub> <mi>P</mi> <mrow> <mi>t</mi> <mi>e</mi> <mi>c</mi> <mi>h</mi> </mrow> </msub> <mo>+</mo> <msub> <mi>P</mi> <mrow> <mi>l</mi> <mi>o</mi> <mi>s</mi> <mi>s</mi> </mrow> </msub> </mrow> <mrow> <munderover> <mo>&Sigma;</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>n</mi> </munderover> <msub> <mi>&rho;</mi> <mi>i</mi> </msub> <msub> <mi>b</mi> <mi>i</mi> </msub> <mi>&pi;</mi> <mrow> <mo>(</mo> <msubsup> <mi>R</mi> <mrow> <mi>i</mi> <mi>w</mi> </mrow> <mn>2</mn> </msubsup> <mo>-</mo> <msubsup> <mi>R</mi> <mrow> <mi>i</mi> <mi>n</mi> </mrow> <mn>2</mn> </msubsup> <mo>)</mo> </mrow> </mrow> </mfrac> </mrow>In formula, MsteelFor the gross weight of the strip of a batch cold rolled strip steel production institute output, PtechIt is each in the cold rolling production process of position Unit is used to process consumed power, PlossFor the power lost in cold rolling production process, ρiFor coil of strip i density, biFor steel Roll up i width, RiwFor coil of strip i external diameter, RinFor coil of strip i internal diameter.
- 5. the method for evaluation cold rolled strip steel production complex energy efficiency according to claim 4, it is characterised in that described cold Rolling the power lost in production process includes the energy, cold rolling that each unit is lost due to self reason in cold rolling production process Energy of the heat loss of strip, the energy of defect ware strip consumption and remaining consumption, in cold rolling production process each unit due to from Body reason and the energy that loses includes the frictional dissipation of milling train and the radiating of annealing furnace.
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Application publication date: 20171124 |