CN107516159A - A kind of generating equipment evaluation method based on Life cycle cost - Google Patents
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Abstract
A kind of generating equipment evaluation method based on Life cycle cost, it comprises the following steps：A. the complexity of generating equipment is directed to, its Life cycle cost is classified, proposes to meet actual generating equipment LCC composition sorting techniques；B. each system to generating equipment Life cycle cost, part founding mathematical models, and consider contribution margin of the subsidiary engine equipment to main frame LCC；C. by collecting each system of generating equipment, the running situation of part, acquisition cost, operating cost, failure cost, Environmental costs, retired cost and the residual value of generating equipment are counted, and considers interest expense and inflation, establishes generating equipment LCC databases；D. analyzed by LCC statistics of database and standardization, the parameter needed in extraction model, the mathematical modeling of structure is more met the actual conditions of generating equipment Life cycle cost；E. the Life cycle cost analysis evaluation method of generating equipment bid and purchase flow can be applied to by ultimately forming.
Description
Technical field
The present invention relates to a kind of generating equipment based on Life cycle cost (Life Cycle Cost) analysis to comment
Valency method, belong to generating equipment technical management field.
Background technology
With raising of the China to thermal power plant energy-saving and emission-reduction requirement, electricity power enterprise needs to install additional environmental protection equipment to pollution
Thing discharge be controlled, the increase of energy-saving equipment and the rise of coal price in addition, electricity power enterprise face it is huge into
This pressure, it is necessary to the competitive advantage that just can guarantee that enterprise is controlled to cost.The cost of generating equipment in itself occupies generating enterprise
The significant portion of industry totle drilling cost.But when generating equipment is bidded and purchased, electricity power enterprise, which biases toward, considers that generating equipment is initially thrown
Cost is provided, equipment acquisition cost is compared according to the quotation information that supplier provides, can not be to generating equipment operation maintenance
During caused cost carry out overall merit.
The Life cycle cost of equipment includes investment, operation, repair and maintenance, failure and the retired cost of disposal of equipment
Deng can the more fully long-term consumption costs of weighing device.Generating equipment such as boiler, steam turbine are complicated to be by various
System, part form, and the operation of each part and maintenance condition are not quite similar, at present both without for the specific of generating equipment LCC
Assay method or mathematical modeling, also without similar active service unit LCC databases as reference, and in bid and purchase flow
In not yet occur to LCC evaluation requirement.
Therefore, should according to corresponding to the characteristics of each system of generating equipment, part operation maintenance, establishes respectively LCC databases and
Mathematical modeling, then organic combination is the evaluation model to whole equipment, ultimately forms the generating equipment described in patent of the present invention
Life cycle Cost Evaluation method.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, in terms of main frame buying in terms of generating equipment
It there is no present situation of the LCC analysis methods as reference, there is provided one kind can be applied to generating equipment (such as boiler, steam turbine), root
Corresponding LCC databases and mathematical modeling are established respectively according to the characteristics of each system of generating equipment, part operation maintenance, it is then organic
The evaluation model to whole equipment is integrated into, life period of an equipment cost is entered in Bids For Purchasing Equipments overall process for policymaker
Row overall merit, with the generating equipment based on Life cycle cost analysis for improving electricity power enterprise's operation level, reducing cost
Evaluation method.
To solve the above problems, the present invention provides a kind of generating equipment evaluation method based on Life cycle cost, should
Evaluation method comprises the following steps：
A. the complexity of generating equipment is directed to, its Life cycle cost is classified, proposition meets actual generating
Equipment LCC forms sorting technique；
B. each system to generating equipment Life cycle cost, part founding mathematical models, and consider subsidiary engine equipment pair
Main frame LCC contribution margin；
C. by collecting each system of generating equipment, the running situation of part, count the acquisition cost of generating equipment, operation into
Sheet, failure cost, Environmental costs, retired cost and residual value, and consider interest expense and inflation, establish generating equipment LCC
Database；
D. analyzed by LCC statistics of database and standardization, the parameter needed in extraction model, make the mathematics of structure
Model more meets the actual conditions of generating equipment Life cycle cost；
E. the Life cycle cost analysis evaluation method of generating equipment bid and purchase flow can be applied to by ultimately forming.
As preferred：In the step a, described generating equipment LCC is divided into following six part：Purchase into
The cost that sheet, operating cost, failure cost, Environmental costs, retired cost and residual value and interest expense and inflation are brought；
In the step b, generating equipment Life cycle cost each several part mathematical modeling, its static device LCC models are such as
Under：
LCCjt=CP+CO+CD+CF+CE, i.e.,：
Wherein C is input condition, is general expenses, and X is contribution ratio of the subsidiary engine to host device items cost, can root
Factually money is received on border or design parameter is tried to achieve；
In the step c, counting every cost data can be by obtaining bid and purchase contract, company's capital construction cost core
Calculate, the data of ration standard and SAP assets financial systems are carried out, establish generating equipment LCC databases；
In the step d, the data counted on are pre-processed and standardization, the ginseng needed in extraction model
Number, improves generating equipment LCC models；
In the step e, flow that generating equipment Whole Life Appraisal approach application to generating equipment is bidded and purchased
In, tissue carries out LCC when examining supplier's bid qualification and just evaluated；In the assessment of bids stage parameter is provided according to supplier, with reference to LCC
Database adjusts generating equipment LCC；Assessed after LCC is carried out after signing a contract and feedback, realization track generating equipment LCC numbers
According to the perfect of storehouse.
As preferred：In the step b, wherein：
1) acquisition cost：
2) operating cost：
3) failure cost：
4) retired cost：
5) Environmental costs：
6) consider interest expense and inflation, convert dynamic cost：
As preferred：In the step a or b：
1) acquisition cost CP refers to the cost of equipment purchase and installation and debugging stage input, includes equipment price itself and its
He purchases expense additional during installation；Equipment acquisition cost includes：Dispatch from the factory and (arrive bank) price, be producer price for home equipment,
C.I.F. is referred to import equipment, contains value-added tax, tariff, freight etc.；Freight charges and insurance；Retention fee (including examine
Take)；Installation and debugging expense；When signing a contract, if equipment vendors are responsible for transport, the installation and debugging of equipment, CP is contract total price
Lattice, including equipment producer price, equipment freight charges, insurance premium, retention fee and rigging up and debugging expense etc., if equipment vendors only carry
For equipment, not responsible transport, installation and debugging, then acquisition cost be shown below：
CP=Ccc+Cyf+Cbg+Cts；
Wherein：
Equipment producer price
Czjcc--- main frame producer price；
Xfji--- i-th of subsidiary engine is to main frame contribution margin；
Cfjcci--- i-th of subsidiary engine producer price；
Equipment freight charges
Czjyf--- host device freight charges and insurance；
Cfjyfi--- i-th of subsidiary engine equipment freight charges and insurance；
Equipment retention fee
Czjbg--- host device retention fee；
Cfjbgi--- i-th of subsidiary engine equipment retention fee；
Equipment installation cost
Czjts--- host device adjustment and installation takes；
Cfjts--- i-th of subsidiary engine equipment debugging installation fee；
Acquisition cost is generally designated as：
2) operating cost CO refer in equipment normal course of operation occur expense summation, mainly including personal expenditures,
Power cost, Master Cost, equipment maintenance cost and insurance premium；Shown in formula specific as follows：
CO=Cry+Cdl+Ccl+Cwh+Cbx
Wherein：
Cry--- personal expenditures；
Cdl--- power cost；
Ccl--- Master Cost (standby redundancy consumption)；
Cwh--- equipment maintenance cost；
Cbx--- insurance premium；
Personal expenditures is decomposed into the expense sum of operations staff, support staff and administrative staff, and converted into necessarily
Ratio.It is large number of in view of fossil power plant auxiliary engine, the number of personal expenditures can not embody exactly main frame (steam turbine or
Boiler) equipment and other subsidiary engines difference, therefore, in order to be the difference of accurately evaluation main frame personal expenditures and subsidiary engine personal expenditures
It is different, contribution margin ratio of the personal expenditures to main frame is considered as, is shown below：
Cry=∑ XyxryCyxry+∑XfzryCfzry+∑XglryCglry；
Xyxry--- contribution of the operations staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cyxry--- full factory operations staff's expense；
Xfzry--- contribution of the support staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cfzry--- full factory support staff's expense；
Xglry--- contribution of the administrative staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cglry--- full factory administrative staff's expense；
The electricity charge consumed during the operation of expenditure on power, i.e. equipment and water, gas, oil, chemicals etc.；Generating set system is answered
Miscellaneous, it is difficult to polarize the expenditure on power for understanding that steam turbine or boiler are consumed, in some cases, also no is steam turbine or boiler
Flow measurement device etc. is separately configured, therefore, it is also desirable to expenditure on power is decomposed according to design parameter, extract steam turbine or
The expenditure on power that boiler is consumed, shown in formula specific as follows：
Wherein：
Xdlij--- the consumption of i-th of equipment jth kind expenditure on power；
Xdlsumj--- full factory's consumption of jth kind expenditure on power；
Cdlj--- the expense of jth kind expenditure on power；
Master Cost, the main consumption costs for including standby redundancy, it is standby that spare unit subsidiary during main frame purchase is deducted herein
Part, it is shown below：
Wherein：
Xclsumij--- for steam turbine or the jth kind material consumption total amount of i-th of equipment of boiler；
Xpd--- main frame standby redundancy amount subsidiary when buying；
Cclij--- for steam turbine or the jth kind Master Cost of i-th of equipment of boiler；
Plant maintenance is divided into periodic maintenance and unscheduled maintenance, can be further subdivided into repairable queue and unrepairable again
Equipment, according to actual investigational data, each maintenance cost of equipment can be obtained every time, but the maintenance cost of equipment component is only
Some is attributed to main frame, therefore maintenance cost is shown below：
Wherein：
Xwhij--- main frame contribution ratio in the jth time maintenance cost of i-th of equipment；
Cwhij--- the jth time maintenance cost of i-th of equipment；
Equipment insurance expense is similar with maintenance cost, is shown below：
Wherein：
Xwhij--- main frame contribution ratio in the jth time insurance premium of i-th of equipment；
Cwhij--- the jth time insurance premium of i-th of equipment；
In summary, the operating cost model of host device can be summarized as：
3) failure cost CF refers to the expense lost when power plant equipment breaks down, and has both included solving failure here
When caused by the direct losses such as artificial, fee of material, also including equipment fault shut down damages after leading to grave consequences etc. its
His indirect loss；It will represent as follows due to loss caused by host device failure and subsidiary engine equipment fault：
Wherein：
CzjCF--- power generation loss caused by host device failure；
CfjCFi--- power generation loss caused by i-th of subsidiary engine equipment fault caused by main frame；
4) artificial, equipment, freight when scrap cost (CD, Cost of Discard) refers to equipment retired disposal
And expenses of environmental protection, and the residual value returned when deducting retired, shown in formula specific as follows：
Wherein,
CzjCD--- the retired expense of host device；
CfjCDi--- the retired expense of i-th of subsidiary engine；
Czjcz--- host device residual value；
Cfjczi--- i-th of subsidiary engine remanent value of equipment；
5) Environmental costs (CE, Cost of Environment) refer in enterprise to reduce infringement of its equipment to environment
And increased flue gas desulphurization system after the expense of extraneous expense, such as boiler plant；According to the difference of pollutant process species,
Environmental costs are as follows：
Yi--- i-th kind of pollutant discharge amount；
Cwri--- the expense consumed for i-th kind of pollutant unit discharge of control；
6) on static models basis, consider the time cost that each expense occurs, carry out interest expense and currency is swollen
Swollen conversion, the expense conversion in different time is occurred into for equipment for the expense in the same time occurs, can be moved with obtaining LCC
States model；LCC dynamic models are as follows：
LCCdt--- LCC dynamic models；
LCCjti--- 1 year LCC static models；
N --- equipment runs the time limit；
CPI --- inflation rate；
γ --- Annual Percentage Rate then.
It is an advantage of the invention that：
1), practicality：Generating equipment assay method proposed by the present invention based on Life cycle cost, can be from complete
The angle of life cycle carries out more comprehensively Cost Evaluation to generating equipment, and proposition more meets the specific into one's duty of generating equipment
Class combined method, practicality is had more in Bids For Purchasing Equipments decision-making level；
2), reliability：Generating equipment LCC databases proposed by the present invention can be directed to specific producer and type carries out data system
Collect collection, and the database that can receive money on the spot using power plant carries out perfect to built mathematical modeling, makes the mathematical modeling of structure more
Meet the actual conditions of generating equipment Life cycle cost, so that model and analysis method have more reliability；
3) it is, open：LCC models and database can play a role in bid and purchase flow early, middle, late stage, compared to existing
Have LCC analysis methods more can implementation model parameter feedback, whole analysis method more has continuity, mathematical modeling more to have opening
Property, long-term assay can be carried out to devices from different manufacturers by the expansion and improving for database of data volume.
Brief description of the drawings
Fig. 1 is generating equipment Life cycle cost analysis evaluation method system pie graph.
Fig. 2 is that generating equipment Life cycle cost classification forms structural representation.
Fig. 3 is the generating equipment bid and purchase flow chart comprising LCC assay methods.
Embodiment
Below in conjunction with the accompanying drawings and embodiment explains to the present invention.A kind of generating based on Life cycle cost
Appraisal of equipment method, the evaluation method include：
A. the complexity of generating equipment is directed to, its Life cycle cost is classified, proposition meets actual generating
Equipment LCC forms sorting technique；
B. each system to generating equipment Life cycle cost, part founding mathematical models, and consider subsidiary engine equipment pair
Main frame LCC contribution margin；
C. by collecting each system of generating equipment kind, the running situation of part, acquisition cost, the operation of generating equipment are counted
Cost, failure cost, Environmental costs, retired cost and residual value, and consider interest expense and inflation, establish generating equipment
LCC databases；
D. analyzed by LCC statistics of database and standardization, the parameter needed in extraction model, make the mathematics of structure
Model more meets the actual conditions of generating equipment Life cycle cost；
E. the Life cycle cost analysis evaluation method of generating equipment bid and purchase flow can be applied to by ultimately forming.
The relation between each link can be used shown in Fig. 1 and summarized above.
In the step a, specifically include：Generating equipment Life cycle cost is divided into part following six：Purchase into
The cost that sheet, operating cost, failure cost, Environmental costs, retired cost and residual value and interest expense and inflation are brought；Knot
The characteristics of closing Life cycle cost and generating equipment cost consumption concrete condition, to the further subdivision of each several part, are adapted to
The LCC composition classification of generating equipment.
In the step b, specifically include：The each several part founding mathematical models obtained to step a, are shown below, by it
In the parameter that can directly obtain list, the parameter founding mathematical models not directly obtained are predicted.
The equipment LCC static models are as follows：
LCCjt=CP+CO+CD+CF+CE；
Wherein
C is input condition, is general expenses, and X is contribution ratio of the subsidiary engine to host device items cost, can be provided according to actual receive
Or design parameter is tried to achieve；
Wherein：1) acquisition cost：
2) operating cost：
3) failure cost：
4) retired cost：
5) Environmental costs：
6) consider interest expense and inflation, convert dynamic cost：
Each several part can further segment according to the characteristics of generating equipment, and particular content is as shown in Figure 2.
The step c is specifically included：Money data statistics list is received on the spot by establishment power plant, records the generating of different manufacturers, model
Every cost corresponding to equipment, to the part not directly obtained in model, required input parameter is made to count and handle.
The step d is specifically included：Generating equipment LCC databases are established, and using mathematical statistics method to institute in model
Need parameter to be standardized, normalized, substitute into the mathematical modeling of foundation, the model of foundation is carried out perfect.
In the step e, flow that generating equipment Whole Life Appraisal approach application to generating equipment is bidded and purchased
In, tissue carries out LCC when examining supplier's bid qualification and just evaluated；In the assessment of bids stage parameter is provided according to supplier, with reference to LCC
Database adjusts generating equipment LCC；Assessed after LCC is carried out after signing a contract and feedback, realization track generating equipment LCC numbers
According to the perfect of storehouse.
The model of each several part cost of the present invention is as follows：
1) acquisition cost (CP, Cost of Purchase) refers to the cost of equipment purchase and installation and debugging stage input,
Additional expense when being installed comprising equipment price itself and other buyings.Equipment acquisition cost includes：Dispatch from the factory and (arrive bank) price, it is right
It is producer price in home equipment, C.I.F. is referred to import equipment, contains value-added tax, tariff, freight etc.；Freight charges and guarantor
Danger；Retention fee (including survey fees)；Installation and debugging expense.When signing a contract, if equipment vendors be responsible for equipment transport, installation with
Debugging, then CP be contract total price, including equipment producer price, equipment freight charges, insurance premium, retention fee and equipment installation tune
Examination takes, if equipment vendors only provide equipment, not responsible transport, installation and debugging, then acquisition cost be shown below：
CP=Ccc+Cyf+Cbg+Cts；
Wherein：
Equipment producer price
Czjcc--- main frame producer price；
Xfji--- i-th of subsidiary engine is to main frame contribution margin；
Cfjcci--- i-th of subsidiary engine producer price；
Equipment freight charges
Czjyf--- host device freight charges and insurance；
Cfjyfi--- i-th of subsidiary engine equipment freight charges and insurance；
Equipment retention fee
Czjbg--- host device retention fee；
Cfjbgi--- i-th of subsidiary engine equipment retention fee；
Equipment installation cost
Czjts--- host device adjustment and installation takes；
Cfjts--- i-th of subsidiary engine equipment debugging installation fee；
Acquisition cost is generally designated as：
2) operating cost (CO, Cost of Operation) refers to the total of expense occurs in equipment normal course of operation
With mainly including personal expenditures, power cost, Master Cost, equipment maintenance cost and insurance premium.Shown in formula specific as follows：
CO=Cry+Cdl+Ccl+Cwh+Cbx
Wherein：
Cry--- personal expenditures；
Cdl--- power cost；
Ccl--- Master Cost (standby redundancy consumption)；
Cwh--- equipment maintenance cost；
Cbx--- insurance premium；
Personal expenditures is decomposed into the expense sum of operations staff, support staff and administrative staff, and converted into necessarily
Ratio.It is large number of in view of fossil power plant auxiliary engine, the number of personal expenditures can not embody exactly main frame (steam turbine or
Boiler) equipment and other subsidiary engines difference, therefore, in order to be the difference of accurately evaluation main frame personal expenditures and subsidiary engine personal expenditures
It is different, contribution margin ratio of the personal expenditures to main frame is considered as, is shown below：
Cry=∑ XyxryCyxry+∑XfzryCfzry+∑XglryCglry；
Xyxry--- contribution of the operations staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cyxry--- full factory operations staff's expense；
Xfzry--- contribution of the support staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cfzry--- full factory support staff's expense；
Xglry--- contribution of the administrative staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cglry--- full factory administrative staff's expense；
The electricity charge consumed during the operation of expenditure on power, i.e. equipment and water, gas, oil, chemicals etc..Generating set system is answered
Miscellaneous, it is difficult to polarize the expenditure on power for understanding that steam turbine or boiler are consumed, in some cases, also no is steam turbine or boiler
Flow measurement device etc. is separately configured, therefore, it is also desirable to expenditure on power is decomposed according to design parameter, extract steam turbine or
The expenditure on power that boiler is consumed, shown in formula specific as follows：
Wherein：
Xdlij--- the consumption of i-th of equipment jth kind expenditure on power；
Xdlsumj--- full factory's consumption of jth kind expenditure on power；
Cdlj--- the expense of jth kind expenditure on power；
Master Cost, the main consumption costs for including standby redundancy, it is standby that spare unit subsidiary during main frame purchase is deducted herein
Part, it is shown below：
Wherein：
Xclsumij--- for steam turbine or the jth kind material consumption total amount of i-th of equipment of boiler；
Xpd--- main frame standby redundancy amount subsidiary when buying；
Cclij--- for steam turbine or the jth kind Master Cost of i-th of equipment of boiler；
Plant maintenance is divided into periodic maintenance and unscheduled maintenance, can be further subdivided into repairable queue and unrepairable again
Equipment, according to actual investigational data, each maintenance cost of equipment can be obtained every time, but the maintenance cost of equipment component is only
Some is attributed to main frame, therefore maintenance cost is shown below：
Wherein：
Xwhij--- main frame contribution ratio in the jth time maintenance cost of i-th of equipment；
Cwhij--- the jth time maintenance cost of i-th of equipment；
Equipment insurance expense is similar with maintenance cost, is shown below：
Wherein：
Xwhij--- main frame contribution ratio in the jth time insurance premium of i-th of equipment；
Cwhij--- the jth time insurance premium of i-th of equipment；
In summary, the operating cost model of host device can be summarized as：
3) failure cost (CF, Cost of Fault) refers to the expense lost when power plant equipment breaks down, this
In the direct losses such as artificial, fee of material caused by when both including solving failure, also shut down and lead to grave consequences including equipment fault
Other indirect losses such as damages afterwards.It will be represented such as due to loss caused by host device failure and subsidiary engine equipment fault
Under：
Wherein：
CzjCF--- power generation loss caused by host device failure；
CfjCFi--- power generation loss caused by i-th of subsidiary engine equipment fault caused by main frame；
4) artificial, equipment, freight when scrap cost (CD, Cost of Discard) refers to equipment retired disposal
And expenses of environmental protection, and the residual value returned when deducting retired, shown in formula specific as follows：
Wherein,
CzjCD--- the retired expense of host device；
CfjCDi--- the retired expense of i-th of subsidiary engine；
Czjcz--- host device residual value；
Cfjczi--- i-th of subsidiary engine remanent value of equipment；
5) Environmental costs (CE, Cost of Environment) refer in enterprise to reduce infringement of its equipment to environment
And increased flue gas desulphurization system after the expense of extraneous expense, such as boiler plant.According to the difference of pollutant process species,
Environmental costs are as follows：
Yi--- i-th kind of pollutant discharge amount；
Cwri--- the expense consumed for i-th kind of pollutant unit discharge of control；
6) on static models basis, consider the time cost that each expense occurs, carry out interest expense and currency is swollen
Swollen conversion, the expense conversion in different time is occurred into for equipment for the expense in the same time occurs, can be moved with obtaining LCC
States model.LCC dynamic models are as follows：
LCCdt--- LCC dynamic models；
LCCjti--- 1 year LCC static models；
N --- equipment runs the time limit；
CPI --- inflation rate；
γ --- Annual Percentage Rate then；
The flow that generating equipment LCC Databases of the present invention are bidded and purchased with generating equipment it is perfect：
Establishing generating equipment LCC databases needs to carry out data receipts money in power plant, and counting every cost data can pass through
The data of bid and purchase contracts, company's capital construction cost accounting, ration standard and SAP assets financial systems are obtained to carry out, and are counted
Calculate conversion and obtain indirect parameter.
Supplemental characteristic needed for model is standardized using mathematical statistics method, normalized, substitute into the mathematics of foundation
In model, the model of foundation is verified and adjusted.Hair will be applied to by the model and correlation analysis method of data detection
The flow of electric equipment bid and purchase, as shown in figure 3, including：Tissue carries out LCC when examining supplier's bid qualification and just evaluated；
The assessment of bids stage provides parameter according to supplier, adjusts material equipment LCC with reference to LCC databases；After LCC is carried out after signing a contract
Assess and feedback, realization track the perfect of generating equipment LCC databases.
Claims (4)
1. a kind of generating equipment evaluation method based on Life cycle cost, it is characterised in that comprise the following steps：
A. the complexity of generating equipment is directed to, its Life cycle cost is classified, proposition meets actual generating equipment
LCC forms sorting technique；
B. each system to generating equipment Life cycle cost, part founding mathematical models, and consider subsidiary engine equipment to main frame
LCC contribution margin；
C. by collecting each system of generating equipment, the running situation of part, count the acquisition cost of generating equipment, operating cost,
Failure cost, Environmental costs, retired cost and residual value, and consider interest expense and inflation, establish generating equipment LCC data
Storehouse；
D. analyzed by LCC statistics of database and standardization, the parameter needed in extraction model, make the mathematical modeling of structure
More meet the actual conditions of generating equipment Life cycle cost；
E. the Life cycle cost analysis evaluation method of generating equipment bid and purchase flow can be applied to by ultimately forming.
2. the generating equipment evaluation method according to claim 1 based on Life cycle cost, it is characterised in that：
In the step a, described generating equipment LCC is divided into following six part：Acquisition cost, operating cost,
The cost that failure cost, Environmental costs, retired cost and residual value and interest expense and inflation are brought；
In the step b, generating equipment Life cycle cost each several part mathematical modeling, its static device LCC models are as follows：
LCCjt=CP+CO+CD+CF+CE, i.e.,：
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Wherein C is input condition, is general expenses, and X is contribution ratio of the subsidiary engine to host device items cost, can be according to reality
Money is received on border or design parameter is tried to achieve；
In the step c, counting every cost data can be by obtaining bid and purchase contract, company's capital construction cost accounting, determining
Volume standard and the data of SAP assets financial systems are carried out, and establish generating equipment LCC databases；
In the step d, the data counted on are pre-processed and standardization, the parameter needed in extraction model is complete
Kind generating equipment LCC models；
In the step e, in the flow that generating equipment Whole Life Appraisal approach application to generating equipment is bidded and purchased, group
Knit and LCC just evaluations are carried out when examining supplier's bid qualification；In the assessment of bids stage parameter is provided according to supplier, with reference to LCC data
Adjust generating equipment LCC in storehouse；Assessed after LCC is carried out after signing a contract and feedback, realization track generating equipment LCC databases
It is perfect.
3. the generating equipment evaluation method according to claim 2 based on Life cycle cost, it is characterised in that described
In step b, wherein：
1) acquisition cost：
2) operating cost：
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3) failure cost：
4) retired cost：
5) Environmental costs：
6) consider interest expense and inflation, convert dynamic cost：
4. the generating equipment evaluation method based on Life cycle cost according to claim 1 or 2 or 3, its feature exist
In the step b：
1) acquisition cost CP refers to the cost of equipment purchase and installation and debugging stage input, is adopted comprising equipment price itself with other
Additional expense during purchase installation；Equipment acquisition cost includes：Dispatch from the factory and (arrive bank) price, be producer price for home equipment, to entering
Jaws equipment refers to C.I.F., contains value-added tax, tariff, freight etc.；Freight charges and insurance；Retention fee (including survey fees)；Peace
Fill debugging charge；When signing a contract, if equipment vendors are responsible for transport, the installation and debugging of equipment, CP is contract total price, including
Equipment producer price, equipment freight charges, insurance premium, retention fee and rigging up and debugging expense etc., if equipment vendors only provide equipment,
Not responsible transport, installation and debugging, then acquisition cost be shown below：
CP=Ccc+Cyf+Cbg+Cts；
Wherein：
Equipment producer price
Czjcc--- main frame producer price；
Xfji--- i-th of subsidiary engine is to main frame contribution margin；
Cfjcci--- i-th of subsidiary engine producer price；
Equipment freight charges
Czjyf--- host device freight charges and insurance；
Cfjyfi--- i-th of subsidiary engine equipment freight charges and insurance；
Equipment retention fee
Czjbg--- host device retention fee；
Cfjbgi--- i-th of subsidiary engine equipment retention fee；
Equipment installation cost
Czjts--- host device adjustment and installation takes；
Cfjts--- i-th of subsidiary engine equipment debugging installation fee；
Acquisition cost is generally designated as：
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2) operating cost CO refers to the summation that expense occurs in equipment normal course of operation, mainly including personal expenditures, power
Expense, Master Cost, equipment maintenance cost and insurance premium；Shown in formula specific as follows：
CO=Cry+Cdl+Ccl+Cwh+Cbx
Wherein：
Cry--- personal expenditures；
Cdl--- power cost；
Ccl--- Master Cost (standby redundancy consumption)；
Cwh--- equipment maintenance cost；
Cbx--- insurance premium；
Personal expenditures is decomposed into the expense sum of operations staff, support staff and administrative staff, and equivalent certain ratio.
Large number of in view of fossil power plant auxiliary engine, the number of personal expenditures can not embody main frame (steam turbine or boiler) exactly
Equipment and the difference of other subsidiary engines, therefore, should for the difference for accurately evaluation main frame personal expenditures and subsidiary engine personal expenditures
Consider that personal expenditures to the contribution margin ratio of main frame, is shown below：
Cry=∑ XyxryCyxry+∑XfzryCfzry+∑XglryCglry；
Xyxry--- contribution of the operations staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cyxry--- full factory operations staff's expense；
Xfzry--- contribution of the support staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cfzry--- full factory support staff's expense；
Xglry--- contribution of the administrative staff to steam turbine or boiler accounts for the ratio of all work contributions；
Cglry--- full factory administrative staff's expense；
The electricity charge consumed during the operation of expenditure on power, i.e. equipment and water, gas, oil, chemicals etc.；Generating set system complex, very
Difficulty polarizes the expenditure on power for understanding that steam turbine or boiler are consumed, and in some cases, also no is that steam turbine or boiler are independent
Flow measurement device etc. is configured, therefore, it is also desirable to expenditure on power is decomposed according to design parameter, extracts steam turbine or boiler
The expenditure on power consumed, shown in formula specific as follows：
<mrow>
<msub>
<mi>C</mi>
<mrow>
<mi>d</mi>
<mi>l</mi>
</mrow>
</msub>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<mfrac>
<msub>
<mi>X</mi>
<mrow>
<mi>d</mi>
<mi>l</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<msub>
<mi>X</mi>
<mrow>
<mi>d</mi>
<mi>l</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>j</mi>
</mrow>
</msub>
</mfrac>
<msub>
<mi>C</mi>
<mrow>
<mi>d</mi>
<mi>l</mi>
<mi>j</mi>
</mrow>
</msub>
</mrow>
Wherein：
Xdlij--- the consumption of i-th of equipment jth kind expenditure on power；
Xdlsumj--- full factory's consumption of jth kind expenditure on power；
Cdlj--- the expense of jth kind expenditure on power；
Master Cost, the main consumption costs for including standby redundancy, standby redundancy subsidiary during main frame purchase is deducted herein, such as
Shown in following formula：
<mrow>
<msub>
<mi>C</mi>
<mrow>
<mi>c</mi>
<mi>l</mi>
</mrow>
</msub>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<mrow>
<mo>(</mo>
<msub>
<mi>X</mi>
<mrow>
<mi>c</mi>
<mi>l</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<mo>-</mo>
<msub>
<mi>X</mi>
<mrow>
<mi>p</mi>
<mi>d</mi>
</mrow>
</msub>
<mo>)</mo>
</mrow>
<msub>
<mi>C</mi>
<mrow>
<mi>c</mi>
<mi>l</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
</mrow>
Wherein：
Xclsumij--- for steam turbine or the jth kind material consumption total amount of i-th of equipment of boiler；
Xpd--- main frame standby redundancy amount subsidiary when buying；
Cclij--- for steam turbine or the jth kind Master Cost of i-th of equipment of boiler；
Plant maintenance is divided into periodic maintenance and unscheduled maintenance, can be further subdivided into repairable queue again and be set with unrepairable
It is standby, according to actual investigational data, each maintenance cost of equipment can be obtained every time, but the maintenance cost of equipment component only has
Partly to the fact that main frame, therefore maintenance cost is shown below：
<mrow>
<msub>
<mi>C</mi>
<mrow>
<mi>w</mi>
<mi>h</mi>
</mrow>
</msub>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>X</mi>
<mrow>
<mi>w</mi>
<mi>h</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>w</mi>
<mi>h</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
</mrow>
Wherein：
Xwhij--- main frame contribution ratio in the jth time maintenance cost of i-th of equipment；
Cwhij--- the jth time maintenance cost of i-th of equipment；
Equipment insurance expense is similar with maintenance cost, is shown below：
<mrow>
<msub>
<mi>C</mi>
<mrow>
<mi>b</mi>
<mi>x</mi>
</mrow>
</msub>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>X</mi>
<mrow>
<mi>b</mi>
<mi>x</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>b</mi>
<mi>x</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
</mrow>
Wherein：
Xwhij--- main frame contribution ratio in the jth time insurance premium of i-th of equipment；
Cwhij--- the jth time insurance premium of i-th of equipment；
In summary, the operating cost model of host device can be summarized as：
<mrow>
<mi>C</mi>
<mi>O</mi>
<mo>=</mo>
<msub>
<mi>&Sigma;X</mi>
<mrow>
<mi>y</mi>
<mi>x</mi>
<mi>r</mi>
<mi>y</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>y</mi>
<mi>x</mi>
<mi>r</mi>
<mi>y</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>&Sigma;X</mi>
<mrow>
<mi>f</mi>
<mi>z</mi>
<mi>r</mi>
<mi>y</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>f</mi>
<mi>z</mi>
<mi>r</mi>
<mi>y</mi>
</mrow>
</msub>
<mo>+</mo>
<msub>
<mi>&Sigma;X</mi>
<mrow>
<mi>g</mi>
<mi>l</mi>
<mi>r</mi>
<mi>y</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>g</mi>
<mi>l</mi>
<mi>r</mi>
<mi>y</mi>
</mrow>
</msub>
<mo>+</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<mfrac>
<msub>
<mi>X</mi>
<mrow>
<mi>d</mi>
<mi>l</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<msub>
<mi>X</mi>
<mrow>
<mi>d</mi>
<mi>l</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>j</mi>
</mrow>
</msub>
</mfrac>
<msub>
<mi>C</mi>
<mrow>
<mi>d</mi>
<mi>l</mi>
<mi>j</mi>
</mrow>
</msub>
<mo>+</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<mrow>
<mo>(</mo>
<msub>
<mi>X</mi>
<mrow>
<mi>c</mi>
<mi>l</mi>
<mi>s</mi>
<mi>u</mi>
<mi>m</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<mo>-</mo>
<msub>
<mi>X</mi>
<mrow>
<mi>p</mi>
<mi>d</mi>
</mrow>
</msub>
<mo>)</mo>
</mrow>
<msub>
<mi>C</mi>
<mrow>
<mi>c</mi>
<mi>l</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<mo>+</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>X</mi>
<mrow>
<mi>w</mi>
<mi>h</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>w</mi>
<mi>h</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<mo>+</mo>
<munder>
<mo>&Sigma;</mo>
<mi>j</mi>
</munder>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>X</mi>
<mrow>
<mi>b</mi>
<mi>x</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>b</mi>
<mi>x</mi>
<mi>i</mi>
<mi>j</mi>
</mrow>
</msub>
</mrow>
3) failure cost CF refers to the expense lost when power plant equipment breaks down, and both includes solving to make during failure here
Into the direct losses such as artificial, fee of material, also including equipment fault shut down damages after leading to grave consequences etc. other
Connect loss；It will represent as follows due to loss caused by host device failure and subsidiary engine equipment fault：
<mrow>
<mi>C</mi>
<mi>F</mi>
<mo>=</mo>
<msub>
<mi>C</mi>
<mrow>
<mi>z</mi>
<mi>j</mi>
<mi>C</mi>
<mi>F</mi>
</mrow>
</msub>
<mo>+</mo>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>C</mi>
<mrow>
<mi>f</mi>
<mi>j</mi>
<mi>C</mi>
<mi>F</mi>
<mi>i</mi>
</mrow>
</msub>
<mo>;</mo>
</mrow>
Wherein：
CzjCF--- power generation loss caused by host device failure；
CfjCFi--- power generation loss caused by i-th of subsidiary engine equipment fault caused by main frame；
4) artificial, equipment, freight and ring when scrap cost (CD, Cost of Discard) refers to equipment retired disposal
Premium is used, and the residual value returned when deducting retired, shown in formula specific as follows：
<mrow>
<mi>C</mi>
<mi>D</mi>
<mo>=</mo>
<msub>
<mi>C</mi>
<mrow>
<mi>z</mi>
<mi>j</mi>
<mi>C</mi>
<mi>D</mi>
</mrow>
</msub>
<mo>+</mo>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>X</mi>
<mrow>
<mi>f</mi>
<mi>j</mi>
<mi>i</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>f</mi>
<mi>j</mi>
<mi>C</mi>
<mi>D</mi>
<mi>i</mi>
</mrow>
</msub>
<mo>-</mo>
<mrow>
<mo>(</mo>
<msub>
<mi>C</mi>
<mrow>
<mi>z</mi>
<mi>j</mi>
<mi>c</mi>
<mi>z</mi>
</mrow>
</msub>
<mo>+</mo>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>X</mi>
<mrow>
<mi>f</mi>
<mi>j</mi>
<mi>i</mi>
</mrow>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>f</mi>
<mi>j</mi>
<mi>c</mi>
<mi>z</mi>
<mi>i</mi>
</mrow>
</msub>
<mo>)</mo>
</mrow>
<mo>;</mo>
</mrow>
Wherein,
CzjCD--- the retired expense of host device；
CfjCDi--- the retired expense of i-th of subsidiary engine；
Czjcz--- host device residual value；
Cfjczi--- i-th of subsidiary engine remanent value of equipment；
5) Environmental costs (CE, Cost of Environment) refer in enterprise to reduce infringement of its equipment to environment and volume
Increased flue gas desulphurization system after the expense of outer expenditure, such as boiler plant；According to the difference of pollutant process species, environment
Cost is as follows：
<mrow>
<mi>C</mi>
<mi>E</mi>
<mo>=</mo>
<munder>
<mo>&Sigma;</mo>
<mi>i</mi>
</munder>
<msub>
<mi>Y</mi>
<mi>i</mi>
</msub>
<msub>
<mi>C</mi>
<mrow>
<mi>w</mi>
<mi>r</mi>
<mi>i</mi>
</mrow>
</msub>
</mrow>
Yi--- i-th kind of pollutant discharge amount；
Cwri--- the expense consumed for i-th kind of pollutant unit discharge of control；
6) on static models basis, consider the time cost that each expense occurs, carry out interest expense and inflationary
Conversion, the expense conversion in different time is occurred into for equipment for expense in the same time occurs, can be to obtain LCC dynamic analogs
Type；LCC dynamic models are as follows：
<mrow>
<msub>
<mi>LCC</mi>
<mrow>
<mi>d</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>=</mo>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>i</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<mrow>
<msub>
<mi>LCC</mi>
<mrow>
<mi>j</mi>
<mi>t</mi>
<mi>i</mi>
</mrow>
</msub>
</mrow>
<msup>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mi>C</mi>
<mi>P</mi>
<mi>I</mi>
<mo>)</mo>
</mrow>
<mrow>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</msup>
<msup>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<mi>&gamma;</mi>
<mo>)</mo>
</mrow>
<mrow>
<mi>i</mi>
<mo>-</mo>
<mn>1</mn>
</mrow>
</msup>
<mo>;</mo>
</mrow>
LCCdt--- LCC dynamic models；
LCCjti--- 1 year LCC static models；
N --- equipment runs the time limit；
CPI --- inflation rate；
γ --- Annual Percentage Rate then.
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| CN201710630955.9A CN107516159A (en) | 2017-07-28 | 2017-07-28 | A kind of generating equipment evaluation method based on Life cycle cost |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109447498A (en) * | 2018-11-08 | 2019-03-08 | 中南大学 | A kind of Rail Transit System cost association multiple domain influent factor big data driving analysis method |
| CN110233681A (en) * | 2019-03-21 | 2019-09-13 | 浙江八达电子仪表有限公司 | A kind of II type collector failure tears back sorting detection device open |
| CN110795815A (en) * | 2019-09-08 | 2020-02-14 | 天津大学 | Method for evaluating life cycle environmental influence during boiler operation |
| CN116430015A (en) * | 2023-03-09 | 2023-07-14 | 华能山东发电有限公司白杨河发电厂 | Power plant auxiliary engine oil monitoring method and system |
| CN116430015B (en) * | 2023-03-09 | 2024-06-25 | 华能山东发电有限公司白杨河发电厂 | Power plant auxiliary engine oil monitoring method and system |
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2017
- 2017-07-28 CN CN201710630955.9A patent/CN107516159A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109447498A (en) * | 2018-11-08 | 2019-03-08 | 中南大学 | A kind of Rail Transit System cost association multiple domain influent factor big data driving analysis method |
| CN109447498B (en) * | 2018-11-08 | 2020-12-11 | 中南大学 | Rail transit system cost association multi-domain influence element big data driving analysis method |
| CN110233681A (en) * | 2019-03-21 | 2019-09-13 | 浙江八达电子仪表有限公司 | A kind of II type collector failure tears back sorting detection device open |
| CN110795815A (en) * | 2019-09-08 | 2020-02-14 | 天津大学 | Method for evaluating life cycle environmental influence during boiler operation |
| CN110795815B (en) * | 2019-09-08 | 2023-12-26 | 天津大学 | Method for evaluating life cycle environmental influence during operation of boiler |
| CN116430015A (en) * | 2023-03-09 | 2023-07-14 | 华能山东发电有限公司白杨河发电厂 | Power plant auxiliary engine oil monitoring method and system |
| CN116430015B (en) * | 2023-03-09 | 2024-06-25 | 华能山东发电有限公司白杨河发电厂 | Power plant auxiliary engine oil monitoring method and system |
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