CN111414583B - Investment estimation and cost analysis management and control method for power grid technical improvement maintenance engineering - Google Patents
Investment estimation and cost analysis management and control method for power grid technical improvement maintenance engineering Download PDFInfo
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Abstract
The invention relates to a method for investment estimation and cost analysis management and control of a power grid technical improvement overhaul project, and belongs to the technical field of power grid projects. The method comprises four parts of an index management module, a cost estimation module, a project examination module and a statistical analysis module; the index management module is used for maintaining basic data of supporting plan fund estimation; the manufacturing cost estimation module is used for estimating planning funds of the production technical improvement repair project; the project examination module is used for carrying out online examination of project plan funds; the statistical analysis module is used for carrying out multidimensional statistical analysis on the manufacturing cost data.
Description
Technical Field
The invention relates to a method for investment estimation and cost analysis management and control of a power grid technical improvement overhaul project, and belongs to the technical field of power grid projects.
Background
Over the years of infrastructure, the power transmission and transformation equipment assets of power grid enterprises are very huge, and the capital investment required by corresponding technical transformation and repair is also increased year by year in the operation process of the equipment. With the increase of capital investment, in recent years, the investment management and control work of a power grid enterprise on a production technical improvement repair project tends to be strict, but the lack of professionals on corresponding management posts leads to poor investment management and control work performance.
The production technical improvement repair project cost estimation and analysis system realizes the reduction of the professional requirements of the cost estimation work on management staff by constructing a set of project cost estimation model and estimation result examination mechanism, and realizes the effective supervision and unified confirmation of result data and the statistical analysis of the result data, thereby assisting in improving the cost management and control level and management decision level of the production technical improvement repair project of the power grid enterprise.
Disclosure of Invention
The invention aims to provide a method for investment estimation and cost analysis management and control of a power grid technical improvement maintenance project, so that the problem that the cost management and control of the production technical improvement maintenance project is difficult due to lack of professional staff in the existing management mode of a power grid enterprise is solved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the investment estimation and cost analysis management and control method for the power grid technical improvement overhaul engineering comprises the following steps:
the method comprises four parts of an index management module, a cost estimation module, a project examination module and a statistical analysis module;
the index management module is used for maintaining basic data of supporting plan fund estimation; the manufacturing cost estimation module is used for estimating planning funds of the production technical improvement repair project; the project examination module is used for carrying out online examination of project plan funds; the statistical analysis module is used for carrying out multidimensional statistical analysis on the manufacturing cost data;
in the index management module, a multi-level index system and a maintenance function are constructed, and the system construction and maintenance steps are as follows:
(1) According to the professional classification of the business level to the power grid equipment, dividing an index library of primary comprehensive transformation, secondary comprehensive transformation, comprehensive transformation of overhead power transmission lines, comprehensive transformation of cable power transmission lines, comprehensive transformation of overhead modified cable power transmission lines, technical transformation of communication equipment, technical transformation of communication lines, main equipment transformation of distribution network, main line transformation of distribution network, engineering transformation of distribution network, primary overhaul of power cables, secondary overhaul of power transformers, overhaul of overhead power transmission lines, overhaul of power cables, overhaul of communication equipment, overhaul of communication lines, main equipment maintenance of distribution network, main line maintenance of distribution network and maintenance of cable lines of distribution network;
(2) According to the technical improvement and repair work content of the professional power grid equipment, establishing a first-level index system of each professional;
(3) After the first-level index system is established, all working contents are disassembled into working procedures to form all professional second-level index systems;
(4) After the secondary index system is established, the bottom data forming a secondary typical index is constructed by combining the self management characteristics of the power grid enterprises and the main material information of common equipment on the basis of standard quota in the industry;
(5) Finally, classifying the whole system according to various libraries to form a plurality of index library files, and supporting online adjustment and maintenance;
in the cost estimation module, a complete system established by the index management module is used for constructing an index application matching model with multiple layers from large to small, and the application steps are as follows:
(1) After a user establishes a project under a class of professions, setting project construction contents;
(2) Providing a corresponding equipment parameter filling function according to project construction contents set by a user;
(3) Automatically matching the typical design scheme and typical indexes under the typical design scheme according to the filled device parameters; because the typical index is directly related to the quota, the equipment and the material, the basic engineering quantity of the quota, the equipment and the material can be directly obtained by locating the parameters to the typical design scheme;
(4) Taking fees according to a calculation rule configured in the background, automatically calculating the comprehensive unit price of each typical index according to the quota, equipment and master material information, and summarizing to form total planned funds;
in the project inspection module, a multi-level project inspection model is constructed according to the function division and management current situation, and the method comprises the following steps:
(1) Project information is reported by a plan declaration staff, and a professional censor censors from the professional standardability angle of the project and gives censoring comments;
(2) After the professional examination passes, the project information continues to circulate, and the technical examiner examines the project information from the viewpoint of cost rationality and gives examination comments;
(3) After the technical examination is passed, the project information is further circulated, and the examination personnel are planned to carry out the whole examination and give examination comments; three layers of examination ensure the reasonability of all aspects of the project and avoid problems in the project implementation stage;
in the statistical analysis module, the data summarizing and comparing analysis model is used for summarizing and analyzing the cost data in a multi-dimension way, and the statistical analysis module mainly comprises several pieces of contents:
(1) Multidimensional summary analysis: including project summary statistics of each professional year; annual tax-containing total investment statistics; each organization project and total investment statistics containing tax; and (5) counting total investment of each organization project and tax.
(2) Cost comparison analysis: and (3) introducing budget and settlement fees, forming project multi-stage expense comparison and analysis, checking the accuracy of the cost estimation indexes, and assisting in correcting basic data.
Further, in step (2) in the index management module: dividing by single equipment according to the technical improvement repair work content of the professional power grid equipment: station transformation, station repair, breaker transformation, breaker repair, and the like.
Further, in step (3) in the index management module: after the first-level index system is established, all working contents are disassembled into working procedures, wherein the working contents are as follows: the station transformation is disassembled according to equipment disassembly, framework disassembly, foundation installation, framework installation, equipment installation and the like.
Further, in step (4) in the index management module: and constructing bottom data forming a secondary typical index, wherein the bottom data is equipment installation equipment and comprises corresponding equipment installation quota, debugging quota, equipment price and the like.
Further, in step (5) in the index management module: the library is 19 types, and the index library files are 19.
Further, in step (1) in the cost estimation module: the project construction content is as follows: station transformation, station repair, breaker transformation, breaker repair, and the like.
Further, in step (1) in the cost estimation module: the corresponding equipment parameter filling function is as follows: for tower reconstruction, tower types, terrains, soil properties and the like need to be filled.
Based on the classification of the production technical improvement repair projects of the power grid enterprises, a set of cost estimation model is established by combining the technical improvement repair budget quota, so that the manager who does not understand the cost can also quickly estimate the planned funds of the production technical improvement repair projects.
Based on the division of responsibility of the power grid enterprise departments and the characteristics of the production technical improvement repair project, a set of cost estimation result examination and supervision mechanism is established, so that management staff can further manage and control the quality of engineering cost.
The multidimensional statistical analysis of the production technical improvement repair project cost result data is realized, so that a manager can analyze the investment level and the change trend of the production technical improvement repair project, and the investment management decision level is improved.
The beneficial effects of the invention are as follows:
1. the estimated threshold of the production technical improvement and repair project cost is reduced, and non-professional personnel can quickly estimate relatively reasonable project plan funds through the invention.
2. The comprehensive improvement of the project inspection of the production technical improvement and repair is realized, and the normalization and rationality of the project declaration are further ensured by the multi-level multi-aspect inspection flow.
3. The value of the manufacturing cost data of the production technical improvement repair project is fully developed, and the multidimensional analysis and comparison assist management decision.
Drawings
FIG. 1 is a schematic diagram of the overall flow of the present invention;
FIG. 2 is a schematic diagram of an estimation programming flow in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a plan project declaration process of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in FIG. 1, the system consists of an index management module, a cost estimation module, a project examination module and a statistical analysis module. The index management module is used for maintaining basic data of supporting plan fund estimation; the manufacturing cost estimation module is used for estimating planning funds of the production technical improvement repair project; the project examination module is used for carrying out online examination of project plan funds; the statistical analysis module is used for carrying out multidimensional statistical analysis of the cost data.
1. In the index management module, the system fully considers the current situation of power grid enterprise management, constructs a multi-level index system and a maintenance function thereof, and the system construction and maintenance steps are as follows:
(1) According to the professional classification of power grid enterprises facing power grid equipment in a service layer, 19 types of professional index libraries such as primary power transformation comprehensive transformation, secondary power transformation comprehensive transformation, overhead power transmission line comprehensive transformation, cable power transmission line comprehensive transformation, overhead power transmission line transformation, communication equipment technical transformation, communication line technical transformation, network distribution main equipment transformation, network distribution overhead line transformation, voltage cable engineering transformation, primary power transformation overhaul, secondary power transformation overhaul, overhead power transmission line overhaul, power cable overhaul, communication equipment overhaul, communication line overhaul, network distribution main equipment maintenance, network distribution overhead line maintenance and network distribution cable line maintenance are divided.
(2) According to the technical improvement repair work content (generally divided by single equipment, such as station transformation, station transformation repair, breaker transformation, breaker repair and the like) of each professional power grid equipment, a first-level index system of each professional is established.
(3) After the first-level index system is established, all working contents are disassembled into working procedures (for example, station transformation is disassembled according to equipment disassembly, architecture disassembly, foundation installation, architecture installation and equipment installation), so that each professional second-level index system is formed.
(4) After the secondary index system is established, the bottom data (such as equipment installation quota, debugging quota and equipment price) forming the secondary typical index is constructed based on standard quota in industry and by combining the self management characteristics of the power grid enterprise and the main material information of common equipment.
(5) And finally, classifying the whole system according to 19 classes of libraries to form 19 index library files, and supporting online adjustment and maintenance.
2. In the cost estimation module, the invention constructs a multi-level index application matching model from large to small according to the whole set of system established by the index management module, as shown in figure 2, and the application steps are as follows:
(1) After the user establishes the project under a certain class of profession, the project construction content is set. Such as station alterations, station repairs, circuit breaker alterations, circuit breaker repairs, etc.
(2) The system provides corresponding equipment parameter filling functions according to project construction contents set by a user. For example, for tower reconstruction, tower types, terrain, soil properties, etc. need to be filled, and the main parameters can be positioned to specific typical design schemes.
(3) The system automatically matches the typical design scheme and typical indexes under the typical design scheme according to the filled device parameters. Because the typical index is directly related to the quota, the equipment and the materials, the basic engineering quantity such as the quota, the equipment and the materials can be directly obtained by positioning the main parameters to the typical design scheme.
(4) The system takes fees according to calculation rules configured in the background, and automatically calculates the comprehensive unit price of each typical index according to the quota, equipment and master material information, and the comprehensive unit price is summarized to form total planned funds. Because of slight differences among the professional calculation models, the following description is made by using a transformation one-time comprehensive transformation calculation model:
according to the formula of building demolition index comprehensive unit price, installation demolition index comprehensive unit price, building index comprehensive unit price, equipment installation index comprehensive unit price and other cost = planning funds, the planning total funds of the project are calculated.
1) The comprehensive unit price calculation method for the building demolition index comprises the following steps:
the construction demolition engineering fee represents construction fee related to equipment demolition, and is calculated according to the formula of 'construction demolition direct fee + measure fee + gauge fee + enterprise management fee + profit + compiling reference period price + tax + one-time fee'.
The above-mentioned construction demolition direct fee=rated labor fee+rated expendable material fee+rated construction machinery fee
The measure fee=the construction increasing fee in winter and rainy season, the tool using fee of the construction tool, the temporary facility fee and the safe civilized construction fee
Construction increasing fee in winter and rainy season=rated artificial fee 6.27%
Tool use = rated labor cost 10.89%
Temporary facility fee = rated labor fee 26.06%
Safe civilization construction fee = rated labor fee 25.64%
Above, the rule fee=social premium+house deposit fee+dangerous operation accidental injury premium
Social premium = rated labor cost 30% 1.45
House accumulation gold = rated labor cost 12% 1.45%
Dangerous operation accidental injury premium = rated manual fee 1.12%
Enterprise management fee=rated labor fee 79.19%
Profit = rated labor cost 16.8%
Above, the programmed reference period price difference=artificial price difference+material price difference+mechanical price difference
The tax = (direct fee for installation and removal + measure fee + regulation fee + enterprise management fee + profit + price for establishment reference period) ×13%
2) Wherein, the comprehensive unit price calculation steps of the installation and removal indexes are as follows:
the installation and demolition engineering cost represents construction cost related to equipment demolition, and is calculated according to the formula of 'installation and demolition direct cost + measure cost + gauge cost + enterprise management cost + profit + compiling reference period price + tax + one-stroke cost'.
The direct charge for installation and removal is equal to the rated labor charge, the rated consumable material charge and the rated construction machine charge
The measure fee=the construction increasing fee in winter and rainy season, the tool using fee of the construction tool, the temporary facility fee and the safe civilized construction fee
Construction increase fee in winter and rainy season=rated labor fee 3.58%
Tool use = rated labor cost 3.28%
Temporary facility fee = rated labor fee 10.43%
Safe civilization construction fee = rated labor fee 14.22%
Above, the rule fee=social premium+house deposit fee+dangerous operation accidental injury premium
Social premium = rated labor cost 30% 1.5
House accumulation gold = rated labor cost 12% 1.5
Dangerous operation accidental injury premium = rated manual fee 2.28%
Above, enterprise management fee=rated artificial fee 39.9%
Profit = rated labor cost 11.4%
Above, the programmed reference period price difference=artificial price difference+material price difference+mechanical price difference
The tax = (direct fee for installation and removal + measure fee + regulation fee + enterprise management fee + profit + price for establishment reference period) ×13%
3) The comprehensive unit price calculation steps of the building index are as follows:
the construction engineering fee represents construction fee and material purchase fee related to earthwork, building and the like, and is calculated according to the formula of 'main building material fee contains tax + building direct fee + measure fee + gauge fee + enterprise management fee + profit + compiling reference period price difference + tax + one-time fee'.
The building main material fee contains tax=building main material tax-containing price, main material damage cost and main material distribution fee
Main material damage consumption = market price tax-containing loss rate
Main material delivery cost= (market price contains tax and damage cost) ×delivery rate
The above-mentioned construction direct fee=rated artificial fee+rated expendable material fee+rated construction machine fee
The measure fee=the construction increasing fee in winter and rainy season, the night construction increasing fee, the tool use fee of the construction tool, the temporary facility fee, the transfer fee of the construction institution, the safe civilized construction fee and the multiple approach increasing fee
Construction increasing fee in winter and rainy season=rated artificial fee 6.02%
Night construction increase fee = rated labor fee 1.06%
Tool use = rated labor cost 4.66%
Temporary facility fee = rated labor fee 18.87%
Construction institution transfer fee = rated labor fee 2.32%
Safe civilization construction fee = rated labor fee 23%
Multiple approach augmentation = rated labor cost 2.27%
Above, the rule fee=social premium+house deposit fee+dangerous operation accidental injury premium
Social premium = rated labor cost 30% 1.5
House accumulation gold = rated labor cost 12% 1.5
Dangerous operation accidental injury premium = rated manual fee 1.52%
Above, enterprise management fee=rated labor fee 68.93%
Profit = rated labor cost 29.7%
Above, the programmed reference period price difference=artificial price difference+material price difference+mechanical price difference
The tax = (construction direct fee + measure fee + regulation fee + enterprise management fee + profit + price of the establishment reference period) = (13%)
4) The comprehensive unit price calculation method of the equipment installation index comprises the following steps:
the comprehensive unit price of the equipment installation index comprises equipment purchase fees and installation engineering fees.
The equipment purchase fee represents the fee required for the purchase and transportation of the power transmission and transformation equipment, and is calculated according to the formula "equipment purchase fee=first equipment fee (market price contains tax) +equipment shipping fee+equipment distribution fee".
The equipment shipping rate is calculated by the equipment shipping rate=first supply equipment rate (the market price contains tax)
The above-mentioned equipment delivery fee=first supply equipment fee (market price contains tax) the delivery rate
The impurity rates and delivery rates are affected by the transportation and delivery distances of the equipment.
Impurity transporting rate: when the distance is less than 50km, the rate is 1.06%; when the distance is more than or equal to 50km, 0.35% of the rate is increased when 50km is increased; less than 50km is calculated as 50 km.
Dispensing rate: when the distance is less than 30km, the rate is 1.03%; when the distance of the transport is more than or equal to 30km, the rate is increased by 0.1 percent when 30km is increased; less than 30km is calculated as 30 km.
The installation engineering cost represents construction cost and material purchase cost related to equipment installation and debugging, and is calculated according to the formula of 'installation main material cost contains tax + installation direct cost + measure cost + regulation cost + enterprise management cost + profit + compiling reference period price difference + tax + one-time cost'.
The installation main material fee contains tax=installation main material tax-containing price, main material damage cost and main material distribution fee
Main Material damage consumption = tax price of installation Main Material loss Rate
Main Material delivery fee= (installation main Material tax-containing price+damage cost) ×delivery rate
The above-mentioned installation direct fee=rated labor fee+rated expendable material fee+rated construction machine fee
The measure fee=the construction increasing fee in winter and rainy season, the night construction increasing fee, the tool use fee of the construction tool, the temporary facility fee, the transfer fee of the construction institution, the safe civilized construction fee and the multiple approach increasing fee
Construction increasing fee in winter and rainy season=rated artificial fee 8.84%
Night construction increase fee = rated labor fee 4.34%
Tool use = rated labor cost 6.75%
Temporary facility fee = rated labor fee 14.48%
Construction institution transfer fee=rated labor fee 10.95%
Safe civilization construction fee = rated labor fee 15.16%
Multiple approach augmentation = rated labor cost 2.41%
Above, the rule fee=social premium+house deposit fee+dangerous operation accidental injury premium
Social premium = rated labor cost 30%. 1.55
House accumulation gold = rated labor cost 12% 1.55%
Dangerous operation accidental injury premium = rated manual fee 2.3%
The enterprise management fee=rated artificial fee 56.83%
Profit = rated labor cost 15.5%
Above, the programmed reference period price difference=artificial price difference+material price difference+mechanical price difference
The tax = (construction direct fee + measure fee + regulation fee + enterprise management fee + profit + price of the establishment reference period) = (13%)
5) The other fees represent fees necessary for construction of projects such as construction site renting and cleaning fees, project management and the like, and are calculated according to the formula of "other fees=construction site renting and cleaning fees+project management".
3. In the project inspection module, the system builds a multi-level project inspection model according to the current situation of power grid enterprise function division and management, as shown in fig. 3, and comprises the following steps:
(1) The project information is reported by the plan declaration staff, and the professional censoring staff censors from the project professional normative angle and gives censoring comments.
(2) After the professional examination passes, the project information continues to circulate, and the technical examiner examines from the viewpoint of cost rationality and gives examination comments.
(3) After the project information passes the project inspection, project information is further circulated, and the project inspection personnel are planned to conduct overall inspection and give inspection comments. Through three-layer examination, the reasonability of all aspects of the project is ensured, and problems in the project implementation stage are avoided.
4. In the statistical analysis module, the cost data is summarized and analyzed in a multi-dimension mode mainly through data summarization and comparison analysis models, and the statistical analysis module mainly comprises several pieces of content:
(1) Multidimensional summary analysis: including project summary statistics of each professional year; annual tax-containing total investment statistics; each organization project and total investment statistics (technical improvement) containing tax; and (5) carrying out statistics (repair) on the total investment of each organization project and tax.
(2) Cost comparison analysis: and (3) introducing budget and settlement fees, forming project multi-stage expense comparison and analysis, checking the accuracy of the cost estimation indexes, and assisting in correcting basic data.
In order to more clearly describe the technical contents of the present invention, the following examples are specifically described.
Case description: a220 kVSF6 knob insulator type breaker in a certain 220kV transformer substation has serious faults and needs to be replaced, the replacement relates to an equipment body and an equipment foundation, and equipment is transported from 46km from a storage location and then distributed to a construction site 8km from the storage location. The calculation according to the cost estimation method is as follows:
1. the circuit breaker belongs to electric primary equipment in the profession, so the project is established under the professional of 'transformation primary comprehensive transformation'.
2. After the project is established, the working content of 'circuit breaker transformation' is selected, technical parameters of various typical indexes under the circuit breaker transformation are set, the voltage class of the parameters is set to 220kV in the scheme, and the equipment type is an SF6 porcelain knob type circuit breaker.
3. According to the set parameters, the system automatically matches typical indexes corresponding to the transformation of the 220kVSF6 knob insulator type circuit breaker from an index library, wherein the typical indexes comprise the dismantling of a 220kVSF6 circuit breaker foundation, the dismantling of a 220kVSF6 circuit breaker, the installation of a 220kVSF6 circuit breaker foundation, the installation of 220kVSF6 knob insulator type circuit breaker equipment and SF6 gas test.
(1) The 220kVSF6 circuit breaker foundation dismantling index only comprises 4634 yuan of one-stroke dismantling cost, so that the 220kVSF6 circuit breaker foundation dismantling index comprehensive unit price is equal to 4634 yuan.
(2) Wherein, 220kVSF6 breaker removal index is made up of quota CQ2-19 (SF 6 breaker removal outdoor voltage (kV) 220). Calculating the comprehensive unit price of the dismantling index of the 220kVSF6 breaker according to the calculation formula of the installation dismantling cost:
direct installation and removal fee=rated labor fee+rated consumable material fee+rated construction use machine fee=833+120+1502=2454 yuan
Construction increase in winter rain = rated labor cost =5.38% = 833×3.58% = 30 yuan
Tool usage = rated labor cost =3.28% = 833×3.28% = 27 yuan
Temporary facility fee=rated labor fee 10.43% =833×10.43% =87 yuan
Safe civilization construction fee = rated labor fee =14.22% = 833 =14.22% = 118 yuan
Measure fee = winter rainy season construction increasing fee + construction tool appliance using fee + temporary facility fee + safe civilized construction fee = 30+27+87+118 = 262 yuan
Social premium = rated manual 30%. 1.5 = 833 =30%. 1.5 = 375 yuan
House accumulation = rated labor cost 12% 1.5 = 833% 12% 1.5 = 150 yuan
Dangerous operation accidental injury premium = rated labor cost =2.28% = 833 =2.28% = 19 yuan
Gauge = social premium + house deposit + dangerous work accidental injury premium =375+150+19 =544 yuan
Enterprise management fee=rated labor fee 39.9% =833 39.9% =332 yuan
Profit = rated labor cost 11.4% = 833 x 11.4% = 95 yuan
Baseline cost = artificial cost + material cost + mechanical cost = 128+7+86 = 220 yuan
Tax= (installation and removal direct fee+measure fee+regulation fee+enterprise management fee+profit+planning reference period price difference) ×13% = (2454+262+544+332+95+220) ×13% = 508 yuan
And finally, calculating according to a formula of ' direct charge, measure charge, regulation charge, enterprise management charge, profit, price difference of a compiling reference period, tax and one charge ', and obtaining the 220kVSF6 breaker dismantling index comprehensive unit price equal to 4415 yuan '.
(3) The 220kVSF6 circuit breaker basic installation index only consists of 13012 yuan for one installation cost, so that the comprehensive unit price of the 220kVSF6 circuit breaker basic installation index is equal to 13012 yuan.
(4) The 220kVSF6 porcelain column type breaker equipment installation index is formed by rated JQ2-10 (SF 6 breaker installation outdoor voltage (kV) 220), JS3-20 (breaker withstand voltage test 220 kV), JQ5-103 (general iron member manufacturing), JQ5-104 (general iron member installation), JQ3-63 (down lead, jumper wire and equipment connecting wire installation 35-220 kV (section mm below) 600); device DLQ003 (220 kv SF6 cylinder breaker); the main materials H06010101 (hot-rolled equilateral angle steel) are 0.072 ton, X14010130 (steel-cored aluminum strand LGJ 300/40) is 0.015 ton, H05010101 (flat steel nail boils 3-5X 20-70) is 0.015 ton, ZDYZC212 (power transformation equipment wire clamp SY-300/40A-160X 160) is 1 piece, and ZDYZC213 (power transformation equipment wire clamp SY-300/40B-160X 160) is 1 piece.
Calculating the comprehensive unit price of the 220kVSF6 porcelain column type breaker equipment installation index according to an installation engineering cost calculation formula:
the mounting master material contains tax=h 06010101 unit price 0.072+x14010130 unit price 0.015+h05010101 unit price 0.015+zdyzc212 unit price 1+zdyzc213 unit price 1=5682 unit price 0.072+17302 unit price 0.015+5517 unit price 0.015+66 unit price 1+53 unit price 1=870 yuan
The distribution distance=8 km in this case is less than 30km, and thus the distribution rate is 1.03%.
Master material delivery fee=tax-containing price of installed master material delivery rate=870×1.03% =9 yuan
Tax on installation principal material cost =tax on installation principal material cost +principal material delivery cost =870+9=879 element
Installation direct fee=rated labor fee+rated consumable material fee+rated construction use machine fee=4133+887+16687=21706 yuan
Construction increase in winter rain = rated labor cost =8.84% = 4133 x 8.84% = 365 yuan
Night construction increase fee = rated labor fee =4.34% =4133×4.34% =179 yuan
Tool usage = rated labor cost =6.75% = 4133 x 6.75% = 279 yuan
Temporary facility fee=rated labor fee 14.48% =4133×14.48% =598 yuan
Construction agency transfer fee=rated labor fee 10.95% =4133×10.95% =453 yuan
Safe civilization construction fee=rated labor fee 15.16% =4133×15.16% =627 yuan
Multiple approach boost charge = rated artificial charge 2.41% = 4133 x 2.41% = 100 yuan
Measure fee = winter rainy season construction increasing fee + night construction increasing fee + construction tool use fee + temporary facility fee + construction institution transfer fee + safe civilized construction fee + multiple approach increasing fee = 2601 yuan
Social premium = rated artificial fee =30% 1.55 = 4133 =30% 1.55 = 1922 yuan
House accumulation = rated labor cost 12% 1.55 = 4133% 12% 1.55 = 769 yuan
Dangerous operation accidental injury premium = rated labor cost =2.3% =4133×2.3% =95 yuan
Gauge = social premium + house deposit + dangerous work accidental injury premium =1922 +769+95 =2785 yuan
Enterprise management fee=rated labor fee 56.83% =4133×56.83% =2349 yuan
Profit = rated labor cost =15.5% = 4133 =15.5% = 641 yuan
Baseline price difference = artificial price difference + material price difference + mechanical price difference = 634+45+851 = 1530 yuan
Tax= (installation direct fee + measure fee + regulation fee + enterprise management fee + profit + working out reference period price difference) = 13% = 21706+2601+2785+2349+641+ 1530) = 13% = 4109 yuan
According to the formula of 'main material fee including tax, direct fee, measure fee, regulation fee, enterprise management fee, profit, compiling standard period price difference, tax and one-stroke fee', the 220kVSF6 porcelain column type breaker equipment installation fee is calculated to be 36600 yuan.
The transport distance=46 km in this case is less than 50km, so the impurity rate takes 1.06%. Distribution distance=8 km is less than 30km, and thus the distribution rate is 1.03%.
Equipment shipping rate = a-supply equipment rate (market price contains tax)/(shipping rate = 220000 x 1.06% = 2332 yuan. Equipment delivery fee=equipment for first (market price contains tax) ×delivery rate=220000×1.03% =2266 yuan. Further, it can be seen that:
equipment purchase fee=first supply equipment fee (market price contains tax) +equipment shipping fee+equipment distribution fee=220000+2332+2266= 224598 yuan.
And finally, calculating according to a formula of 'main material fee tax + installation direct fee + measure fee + gauge fee + enterprise management fee + profit + compiling reference period price difference + tax + equipment acquisition fee', and obtaining the 220kVSF6 porcelain column type breaker equipment installation index comprehensive unit price as 261198 yuan.
(5) The SF6 gas test index consists of a quota JS3-102 (SF 6 gas test SF6 sampling), JS3-103 (SF 6 gas test SF6 leak detection), JS3-104 (SF 6 gas test SF6 dew point), JS3-105 (SF 6 gas test SF6 component), JS3-110 (SF 6 density relay verification) and JS3-111 (gas relay verification).
Calculating the comprehensive unit price of SF6 gas test indexes according to an installation engineering cost calculation formula:
installation direct fee=rated labor fee+rated consumable material fee+rated construction use machine fee=1043+211+1206=2461 yuan
Construction increase rate in winter and rainy season=rated labor rate =8.84% =1043×8.84% =92 yuan
Night construction increase fee = rated labor fee =4.34% = 1043 x 4.34% = 45 yuan
Tool usage = rated labor cost =6.75% = 1043 x 6.75% = 70 yuan
Temporary facility fee=rated labor fee 14.48% =1043×14.48% =151 yuan
Construction agency transfer fee=rated labor fee 10.95% =1043×10.95% =114 yuan
Safe civilization construction fee=rated labor fee 15.16% =1043×15.16% =158 yuan
Multiple approach boost charge = rated artificial charge 2.41% = 1043 x 2.41% = 25 yuan
Measure fee = winter and rainy season construction increasing fee + night construction increasing fee + construction tool using fee + temporary facility fee + construction institution transfer fee + safe civilized construction fee + multiple approach increasing fee = 656 yuan
Social premium = rated manual fee 30% 1.55 = 1043 x 30% 1.55 = 485 element
House accumulation = rated labor cost 12% 1.55 = 1043% 12% 1.55 = 194 yuan
Dangerous operation accidental injury premium = rated labor cost =2.3% = 1043×2.3% = 24 yuan
Gauge = social premium + house deposit + dangerous operation accidental injury premium =485 +194+24 =703 yuan
Enterprise management fee = rated labor fee =56.83% = 1043 x 56.83% = 593 yuan
Profit = rated labor cost =15.5% = 1043 =15.5% = 162 yuan
Baseline price difference = artificial price difference + material price difference + mechanical price difference = 160+11+62 = 232 yuan
Tax= (installation direct fee + measure fee + regulation fee + enterprise management fee + profit + price difference of the build reference period) = (2461 +656+703+593+162+ 232) x13% = 625 yuan
According to the formula of' main material fee including tax + direct fee + measure fee + gauge fee + enterprise management fee + profit + compiling reference period price difference + tax.
(6) The other fees represent fees necessary for construction of projects such as construction site renting and cleaning fees, project management and the like, and are calculated according to the formula of "other fees=construction site renting and cleaning fees+project management".
The case is the construction in a transformer substation, belongs to the assets of an electric power enterprise, and has no construction site renting and cleaning cost; only project management fees (construction fees+installation fees) ×3.5% = (13012+36600+5432) ×3.5% = 1926 yuan
(7) The final calculation results in the overall planning fund for the case as: 4634, 4415, 13012, 261198, 5432, 1926 = 290617.
4. After estimating project plan funds, a project declaration opens a project review flow, reports the project to a professional reviewer, and the professional reviewer reviews project standing driving factors, mainly solved problems and corresponding project construction contents.
In the case, the 220kVSF6 knob insulator type breaker mainly solves the problem that serious faults occur; the construction content of the project comprises 220kVSF6 breaker foundation dismantling, 220kVSF6 breaker foundation installation, 220kVSF6 knob insulator type breaker equipment installation and SF6 gas test; the construction content and the problems of the project are analyzed in a professional manner.
5. After the professional examination passes, the project flow is transferred to the technical examiner, and the technical examiner has rich cost professional experience and mainly examines whether the project estimated planned funds are reasonable or not.
6. After the technical expertise review passes, the project flow goes to the plan reviewer, who reviews the project's main construction content and plan funds as a whole.
7. After professional, technical and planning three-layer examination, after completion and settlement of the project, a manager can start comparison analysis work, and the comparison analysis of the estimated planned funds and the actual cost is carried out from the dimensions of estimation, budget, estimation, settlement and the like, so that the accuracy of the estimated cost is checked transversely, and a supporting basis is provided for the correction work of the index.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (2)
1. The investment estimation and cost analysis management and control method for the technical improvement of the power grid maintenance engineering is characterized by comprising the following steps of:
the method comprises four parts of an index management module, a cost estimation module, a project examination module and a statistical analysis module;
the index management module is used for maintaining basic data of supporting plan fund estimation; the manufacturing cost estimation module is used for estimating planning funds of the production technical improvement repair project; the project examination module is used for carrying out online examination of project plan funds; the statistical analysis module is used for carrying out multidimensional statistical analysis on the manufacturing cost data;
in the index management module, a multi-level index system and a maintenance function are constructed, and the system construction and maintenance steps are as follows:
(1) According to the professional classification of the business level to the power grid equipment, dividing an index library of primary comprehensive transformation, secondary comprehensive transformation, comprehensive transformation of overhead power transmission lines, comprehensive transformation of cable power transmission lines, comprehensive transformation of overhead modified cable power transmission lines, technical transformation of communication equipment, technical transformation of communication lines, main equipment transformation of distribution network, main line transformation of distribution network, engineering transformation of distribution network, primary overhaul of power cables, secondary overhaul of power transformers, overhaul of overhead power transmission lines, overhaul of power cables, overhaul of communication equipment, overhaul of communication lines, main equipment maintenance of distribution network, main line maintenance of distribution network and maintenance of cable lines of distribution network;
(2) According to the technical improvement and repair work content of the professional power grid equipment, establishing a first-level index system of each professional;
(3) After the first-level index system is established, all working contents are disassembled into working procedures to form all professional second-level index systems;
(4) After the secondary index system is established, the bottom data forming a secondary typical index is constructed by combining the self management characteristics of the power grid enterprises and the main material information of common equipment on the basis of standard quota in the industry;
(5) Finally, classifying the whole system according to various libraries to form a plurality of index library files, and supporting online adjustment and maintenance;
in the cost estimation module, a complete system established by the index management module is used for constructing an index application matching model with multiple layers from large to small, and the application steps are as follows:
(1) After a user establishes a project under a class of professions, setting project construction contents;
(2) Providing a corresponding equipment parameter filling function according to project construction contents set by a user;
(3) Automatically matching the typical design scheme and typical indexes under the typical design scheme according to the filled device parameters; because the typical index is directly related to the quota, the equipment and the material, the basic engineering quantity of the quota, the equipment and the material can be directly obtained by locating the parameters to the typical design scheme;
(4) Taking fees according to a calculation rule configured in the background, automatically calculating the comprehensive unit price of each typical index according to the quota, equipment and master material information, and summarizing to form total planned funds;
in the project inspection module, a multi-level project inspection model is constructed according to the function division and management current situation, and the method comprises the following steps:
(1) Project information is reported by a plan declaration staff, and a professional censor censors from the professional standardability angle of the project and gives censoring comments;
(2) After the professional examination passes, the project information continues to circulate, and the technical examiner examines the project information from the viewpoint of cost rationality and gives examination comments;
(3) After the technical examination is passed, the project information is further circulated, and the examination personnel are planned to carry out the whole examination and give examination comments; three layers of examination ensure the reasonability of all aspects of the project and avoid problems in the project implementation stage;
in the statistical analysis module, the data summarizing and comparing analysis model is used for summarizing and analyzing the cost data in a multi-dimension way, and the statistical analysis module mainly comprises several pieces of contents:
(1) Multidimensional summary analysis: including project summary statistics of each professional year; annual tax-containing total investment statistics; each organization project and total investment statistics containing tax; each organization project and total investment statistics containing tax;
(2) Cost comparison analysis: and (3) introducing budget and settlement fees, forming project multi-stage expense comparison and analysis, checking the accuracy of the cost estimation indexes, and assisting in correcting basic data.
2. The investment estimation and cost analysis management and control method for power grid technical improvement maintenance engineering according to claim 1, wherein the method comprises the following steps: in step (5) in the index management module: the library is 19 types, and the index library files are 19.
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