Pipeline diameter energy-saving optimization evaluation method and system based on full life cycle, processing equipment and storage medium

Abstract

The invention relates to a full-life-cycle-based pipeline diameter energy-saving optimization evaluation method and system, processing equipment and a storage medium, and the method is characterized in that the method comprises the steps: determining the pipeline conveying pressure drop of different pipeline diameters; according to the pipeline conveying pressure drop of different pipeline diameters, calculating the electric quantity of conveying loss, and according to the actual or predicted electric charge, calculating to obtain year-by-year operation loss electric charge of the different pipeline diameters in the whole life cycle; the year-by-year operation loss electric charge in the whole life cycle of the different pipeline diameters is discounted to the initial investment year, and the discounted value of the operation cost of the different pipeline diameters is obtained; according to the pipeline initial investment and operation cost discounted values of different pipeline diameters, the total cost present value of the different pipeline diameters is determined, the pipeline diameter with the lowest total cost present value is selected as the optimal pipeline diameter, the limitation that the pipeline diameter is selected only according to the initial investment in the past is broken through, and the method can be widely applied to the field of optimization evaluation.

Description

Technical Field

[0001] The present invention relates to the field of optimization evaluation, and in particular to a method, system, processing equipment and storage medium for optimizing and evaluating pipeline diameter energy conservation based on the entire life cycle. Background Art

[0002] With the accelerated adjustment of the global energy structure, the oil industry, as a key component of the traditional energy sector, is facing the dual challenges of energy conservation and emission reduction, as well as cost reduction and efficiency improvement. In oil and gas field surface engineering systems, gathering and transportation pipelines serve as the core link between production units and processing facilities. The selection of their design parameters directly impacts the system's energy efficiency and overall lifecycle economics. Statistics show that pipeline power consumption accounts for approximately 35% to 45% of the total energy consumption of oil and gas field surface engineering. The selection of pipe diameter parameters directly determines the friction loss along the fluid transport path and the pump unit configuration, making it a key technical link influencing system energy efficiency.

[0003] At present, the pipe diameter selection method commonly used in the industry has the following technical defects: First, the traditional design method relies too much on the flow velocity experience value range recommended in the design manual. This selection method based on experience parameters lacks quantitative economic analysis of specific engineering scenarios. Second, the current technical specifications only use static economic analysis methods, which have the following three limitations: (1) The cost accounting dimension is single, only considering the pipe procurement cost during the construction period or the energy consumption cost during the operation period, and not building a full life cycle cost model including construction investment, operation and maintenance, equipment renewal, and residual value recovery; (2) The key parameters are dynamic and do not include dynamic variables such as electricity price fluctuations (such as annual electricity prices will change according to supply conditions and market demand), equipment efficiency attenuation curves (such as the law of pump unit operating efficiency decreasing with service life), and the time value of money (such as the weight of the impact of discount rate on long-term costs); (3) The optimization algorithm is backward and still uses manual trial and comparison methods, which makes it difficult to achieve global optimization under multi-objective constraints.

[0004] Relevant research has shown that traditionally designed pipeline systems often tend to be conservative in pipe diameter selection, resulting in actual operating energy consumption exceeding theoretical optimal values. Furthermore, traditional design methods are no longer sufficient to meet the economic evaluation requirements of the new energy system. Therefore, there is an urgent need to develop an energy-saving optimization method for pipeline diameters based on a full lifecycle cost model to guide design and achieve optimal economic efficiency throughout the entire lifecycle. Summary of the Invention

[0005] In response to the above problems, the purpose of the present invention is to provide a pipeline diameter energy-saving optimization evaluation method, system, processing equipment and storage medium based on the entire life cycle, which can achieve optimal economic efficiency throughout the entire life cycle.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions: First, a method for optimizing and evaluating pipeline diameter energy conservation based on the entire life cycle is provided, comprising:

[0007] Determine the pipeline transmission pressure drop for different pipeline diameters;

[0008] Calculate the power loss due to the pipeline pressure drop of different pipeline diameters, and calculate the annual operating loss electricity cost of different pipeline diameters over their entire life cycle based on the actual or predicted electricity cost.

[0009] Discount the annual operating loss electricity costs of different pipeline diameters over their entire life cycle to the initial investment year to obtain the discounted operating cost values ​​of different pipeline diameters;

[0010] According to the discounted value of initial investment and operating costs of pipelines with different diameters, the total cost present value of different pipeline diameters is determined, and the pipeline diameter with the lowest total cost present value is selected as the optimal diameter.

[0011] Furthermore, the transmission loss electricity is calculated based on the pipeline transmission pressure drop of different pipeline diameters, and the annual operation loss electricity cost of different pipeline diameters over the entire life cycle is calculated based on the actual or predicted electricity cost, including:

[0012] According to the pipeline transmission pressure drop, pipeline transmission volume and fluid density of different pipeline diameters, the effective power loss of different pipeline diameters is calculated;

[0013] Based on the effective power loss of different pipeline diameters and the actual pump efficiency for pressurizing the pipeline conveying medium, the equipment shaft power of the conveying loss of different pipeline diameters is calculated;

[0014] The power consumption of transmission loss of different pipeline diameters is calculated based on the equipment shaft power and pipeline annual operation time t.

[0015] Based on the transmission loss of electricity for different pipeline diameters and the actual or predicted annual electricity charges, the annual operating loss electricity charges for different pipeline diameters over their entire life cycle are calculated.

[0016] Furthermore, the effective power lost due to the pipe diameter is:

[0017] P 压降 =ρgQH 压降

[0018] Where ρ is the density of the transported flow; g is the acceleration of gravity; Q is the volume flow rate of the transported flow; H 压降 The pressure drop in the pipeline.

[0019] Furthermore, the equipment shaft power of the transmission loss of the pipeline diameter is:

[0020] P 轴功率 =P 压降 / η

[0021] Where η is the actual pump efficiency for pressurizing the medium transported in the pipeline.

[0022] Furthermore, the amount of electricity lost due to the pipeline diameter is:

[0023] W 电 =P 轴功率 ×T

[0024] Wherein, T is the annual operation time of pipeline capacity;

[0025] The annual operating loss electricity cost over the entire life cycle of the pipeline diameter is:

[0026] E 电 =W 电 ×C 电费

[0027] Among them, C 电费 The actual or projected year-over-year electricity cost.

[0028] Furthermore, the discounted value of the operating cost of the pipeline diameter is:

[0029] PV 运行 =∑E 电(t) ×(1+i) -t ,t=1,……,n

[0030] Among them, E 电 is the annual operating loss electricity cost during the entire life cycle; i is the benchmark rate of return; t is the number of years the pipeline diameter has been put into operation; and n is the design life of the pipeline.

[0031] Furthermore, the total cost present value of the pipeline diameter is:

[0032] NPV=C 管道 +PV 运行

[0033] Among them, C 管道 is the initial investment in the pipeline; PV 运行 is the discounted value of operating expenses.

[0034] Secondly, a pipeline diameter energy-saving optimization evaluation system based on the entire life cycle is provided, including:

[0035] Pipeline transportation pressure drop determination module, used to determine the pipeline transportation pressure drop of different pipeline diameters;

[0036] The module for determining the annual operating loss electricity cost is used to calculate the transmission loss electricity based on the pipeline transmission pressure drop of different pipeline diameters, and calculate the annual operating loss electricity cost of different pipeline diameters over the entire life cycle based on the actual or predicted electricity cost;

[0037] The operating cost discount value determination module is used to discount the annual operating loss electricity costs over the entire life cycle of different pipeline diameters to the initial investment year to obtain the operating cost discount value of different pipeline diameters;

[0038] The optimal pipe diameter determination module is used to determine the total cost present value of different pipe diameters based on the discounted value of the initial investment and operating costs of the pipes of different pipe diameters, and select the pipe diameter with the lowest total cost present value as the optimal pipe diameter.

[0039] In a third aspect, a processing device is provided, comprising computer program instructions, wherein the computer program instructions, when executed by the processing device, are used to implement the steps corresponding to the above-mentioned pipeline diameter energy-saving optimization evaluation method based on the entire life cycle.

[0040] In a fourth aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, wherein the computer program instructions, when executed by a processor, are used to implement the steps corresponding to the above-mentioned pipeline diameter energy-saving optimization evaluation method based on the entire life cycle.

[0041] The present invention has the following advantages due to the adoption of the above technical solution:

[0042] 1. The present invention determines the pipeline transmission pressure drop of different pipeline diameters, and then determines the annual operating loss electricity costs of different pipeline diameters over the entire life cycle. The discounted value of the operating costs of different pipeline diameters is obtained, and then the present value of the total cost of different pipeline diameters is determined. The pipeline diameter with the lowest total cost present value is selected as the optimal diameter, breaking the previous limitation of selecting the diameter only according to the initial investment. The pipeline diameter with the best economic efficiency over the entire life cycle can be obtained.

[0043] 2. The present invention takes into account the impact of multiple dimensions and variables, including equipment efficiency degradation, electricity price fluctuations, time value of money and other year-on-year variables.

[0044] 3. The present invention's analytical and comparative selection method, compared to methods that only consider initial investment, yields pipeline diameters that differ from previously recognized optimal diameter theories. While larger-diameter pipelines require a higher initial investment, they offer lower transmission friction and lower operating energy consumption, resulting in a more economical pipeline diameter.

[0045] In summary, the present invention can be widely applied in the field of optimization evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. Throughout the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0047] Figure 1 It is a flowchart of a method provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0049] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0050] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0051] Currently, relevant research shows that pipeline systems designed using traditional methods generally tend to be conservative in pipe diameter selection, resulting in actual operating energy consumption being 18% to 25% higher than the theoretical optimal value. Furthermore, traditional design methods are no longer able to meet the economic evaluation requirements of new energy systems. Therefore, there is an urgent need to develop a pipeline diameter energy-saving optimization evaluation method based on a full life cycle cost model to guide design and achieve optimal economic performance throughout the entire life cycle. Therefore, an embodiment of the present invention provides a pipeline diameter energy-saving optimization evaluation method based on the entire life cycle, including: determining the pipeline transmission pressure drop of different pipeline diameters; calculating the transmission loss of electricity based on the pipeline transmission pressure drop of different pipeline diameters, and calculating the annual operating loss electricity cost of different pipeline diameters over the entire life cycle based on actual or predicted electricity costs; discounting the annual operating loss electricity cost of different pipeline diameters over the entire life cycle to the initial investment year to obtain the discounted operating cost value of different pipeline diameters; determining the total cost present value of different pipeline diameters based on the discounted initial investment and operating cost value of different pipeline diameters, and selecting the pipeline diameter with the lowest total cost present value as the optimal diameter. The present invention breaks the previous limitation of selecting pipe diameter based only on initial investment, takes into account the influence of multiple dimensions and multiple variables, and can obtain the most economical pipeline diameter throughout the entire life cycle.

[0052] Example 1

[0053] like Figure 1 As shown, this embodiment provides a pipeline diameter energy-saving optimization evaluation method based on the entire life cycle, including the following steps:

[0054] 1) Determine the pipeline transportation pressure drop for different pipeline diameters.

[0055] Specifically, different hydraulic calculation models are selected according to the pipeline transportation medium, several pipeline diameters that meet the requirements of transportation flow rate and other requirements are determined, and the pipeline transportation pressure drop H of different pipeline diameters is obtained. 压降 More specifically, factors to consider when selecting the pipeline diameter include pipeline capacity, pipeline inlet and outlet pressure requirements, pipeline inlet and outlet temperature requirements, fluid velocity limits within the pipe, erosion rate and other flow safety factors, and economic investment.

[0056] It should be noted that the hydraulic calculation model formulas for different pipeline transportation media are different. The hydraulic calculation model in the corresponding commercial software can be used. The specific model structure will not be described in detail here.

[0057] 2) Based on the pipeline transmission pressure drop of different pipeline diameters, calculate the transmission loss of electricity, and based on the actual or predicted electricity charges, calculate the annual operating loss electricity charges for different pipeline diameters over the entire life cycle, specifically:

[0058] 2.1) According to the pipeline transmission pressure drop H of different pipeline diameters 压降As well as the pipeline flow rate and fluid density, the effective power loss P of different pipeline diameters is calculated. 压降 :

[0059] P 压降 =ρgQH 压降 (1)

[0060] Among them, ρ is the density of the transported logistics; g is the acceleration of gravity; Q is the volume flow rate of the transported logistics.

[0061] 2.2) Effective power loss P according to different pipe diameters 压降 As well as the actual pump efficiency η for pressurizing the pipeline medium, the equipment shaft power P for the transmission loss of different pipeline diameters is calculated. 轴功率 :

[0062] P 轴功率 =P 压降 / η(2)

[0063] The pump efficiency η, which is actually used to pressurize the medium transported by the pipeline, can be reduced based on the actual operating conditions of the pump.

[0064] 2.3) Equipment shaft power P based on transmission loss of different pipeline diameters 轴功率 And the annual operation time T of pipeline transmission capacity, the transmission loss of electricity W of different pipeline diameters is calculated 电 :

[0065] W 电 =P 轴功率 ×T(3)

[0066] 2.4) The amount of power W lost due to different pipeline diameters 电 and actual or projected annual electricity costs C 电费 Calculate the annual operating loss electricity cost E for the entire life cycle (i.e., the design life of the pipeline) of different pipeline diameters 电 :

[0067] E 电 =W 电 ×C 电费 (4)

[0068] Among them, the actual or predicted annual electricity cost C 电费 Adjustments can be made based on the predicted results of future change trends.

[0069] 3) The annual operating loss electricity cost E of different pipeline diameters during the entire life cycle 电 Discounted to the initial investment year (i.e. the first year of project commissioning), the discounted value PV of operating costs for different pipeline diameters is obtained. 运行 :

[0070] PV运行 =∑E 电(t) ×(1+i) -t ,t=1,……,n (5)

[0071] Where i is the benchmark rate of return; t is the number of years the pipeline diameter has been in operation; and n is the design life of the pipeline.

[0072] 4) Initial investment C for different pipe diameters 管道 and the discounted present value (PV) of operating costs 运行 , determine the total cost present value of different pipeline diameters, and select the pipeline diameter with the lowest total cost present value as the optimal diameter.

[0073] Specifically, the total cost NPV of different pipeline diameters is:

[0074] NPV=C 管道 +PV 运行 (6)

[0075] The following oil flow rate is 20000m 3 / d, crude oil density is 0.9kg / m 3 Taking a certain oil pipeline as an example, the energy-saving optimization evaluation method of pipeline diameter based on the whole life cycle of the present invention is described in detail:

[0076] 1) Determine the pipeline transportation pressure drop for different pipeline diameters:

[0077] According to the hydraulic calculation model of the oil pipeline, three pipeline diameters of 12 inches, 14 inches and 16 inches were selected, and the calculated pipeline transmission pressure drops corresponding to the pipeline diameters were 7730kPa, 4600kPa and 2200kPa respectively.

[0078] 2) Calculate the amount of electricity lost in transmission based on the pipeline pressure drop for different pipeline diameters, and calculate the annual operating loss electricity costs for different pipeline diameters over their entire life cycle based on actual or predicted electricity costs:

[0079] The pipeline capacity is known to be 20,000 m 3 / d, crude oil density 0.9kg / m 3 , equipment efficiency 0.7, annual operation 365 days, electricity fee 0.6 yuan / kWh, it is calculated that the annual operating loss electricity fees corresponding to the three pipeline diameters in the whole life cycle are 11.86 million yuan, 7.06 million yuan and 3.38 million yuan respectively.

[0080] 3) Discount the annual operating loss electricity costs over the entire life cycle of different pipeline diameters to the initial investment year to obtain the discounted operating cost values ​​of different pipeline diameters:

[0081] Based on the annual operating loss electricity charges calculated in step 2), and assuming a pipeline design life of 25 years and a benchmark rate of return of 9%, the discounted values ​​of operating costs for pipelines of different diameters are RMB 115.14 million, RMB 68.52 million, and RMB 32.77 million, respectively.

[0082] 4) Initial investment C for different pipe diameters 管道 and the discounted present value (PV) of operating costs 运行 , determine the total cost present value of different pipeline diameters, and select the pipeline diameter with the lowest total cost present value as the optimal diameter:

[0083] Based on the initial pipeline investments of RMB 232 million, RMB 250 million, and RMB 268 million corresponding to the three pipeline diameters, it is determined that the 16-inch pipe diameter has the lowest present value of total cost and is the optimal pipe diameter.

[0084] Example 2

[0085] This embodiment provides a pipeline diameter energy-saving optimization evaluation system based on the entire life cycle, including:

[0086] The pipeline transmission pressure drop determination module is used to determine the pipeline transmission pressure drop of different pipeline diameters.

[0087] The module for determining the annual operating loss electricity cost is used to calculate the transmission loss electricity based on the pipeline transmission pressure drop of different pipeline diameters, and to calculate the annual operating loss electricity cost of different pipeline diameters over the entire life cycle based on the actual or predicted electricity cost.

[0088] The operating cost discount value determination module is used to discount the annual operating loss electricity costs of different pipeline diameters over the entire life cycle to the initial investment year to obtain the operating cost discount value of different pipeline diameters.

[0089] The optimal pipe diameter determination module is used to determine the total cost present value of different pipe diameters based on the discounted value of the initial investment and operating costs of the pipes of different pipe diameters, and select the pipe diameter with the lowest total cost present value as the optimal pipe diameter.

[0090] The system provided in this embodiment is used to execute the above-mentioned method embodiments. Please refer to the above-mentioned embodiments for specific processes and detailed contents, which will not be repeated here.

[0091] Example 3

[0092] This embodiment provides a processing device corresponding to the pipeline diameter energy-saving optimization evaluation method based on the entire life cycle provided in Example 1. The processing device can be applicable to a client processing device, such as a mobile phone, laptop computer, tablet computer, desktop computer, etc., to execute the method of Example 1.

[0093] The processing device includes a processor, a memory, a communication interface, and a bus. The processor, memory, and communication interface are connected via the bus to facilitate communication between them. The memory stores a computer program executable on the processing device. When the processing device executes the computer program, it executes the full-lifecycle pipeline diameter energy-saving optimization assessment method provided in Example 1.

[0094] In some implementations, the memory may be a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage.

[0095] In other implementations, the processor may be a central processing unit (CPU), a digital signal processor (DSP), or other general-purpose processors, which are not limited here.

[0096] In addition, the logical instructions in the above-mentioned memory can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0097] Those skilled in the art will understand that the structure of the above-mentioned computing device is only a partial structure related to the solution of the present invention and does not constitute a limitation on the computing device to which the solution of the present invention is applied. The specific computing device may include more or fewer components, or combine certain components, or have a different component arrangement.

[0098] Example 4

[0099] This embodiment provides a computer program product corresponding to the pipeline diameter energy-saving optimization evaluation method based on the entire life cycle provided in Example 1. The computer program product may include a computer-readable storage medium on which computer-readable program instructions are loaded for executing the pipeline diameter energy-saving optimization evaluation method based on the entire life cycle described in Example 1.

[0100] Computer readable storage media can be tangible devices that hold and store instructions used by instruction execution devices. Computer readable storage media can be, for example, but not limited to, electronic storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any combination thereof.

[0101] The above embodiment provides a computer-readable storage medium, whose implementation principle and technical effects are similar to those of the above method embodiment, and will not be repeated here.

[0102] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0103] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0104] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0105] The above embodiments are only used to illustrate the present invention, wherein the structure, connection mode and manufacturing process of each component can be changed. Any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the scope of protection of the present invention.

Claims

1. A pipeline diameter energy-saving optimization evaluation method based on the entire life cycle, characterized in that: include: Determine the pipeline transmission pressure drop for different pipeline diameters; Calculate the power loss due to the pipeline pressure drop of different pipeline diameters, and calculate the annual operating loss electricity cost of different pipeline diameters over their entire life cycle based on the actual or predicted electricity cost. Discount the annual operating loss electricity costs of different pipeline diameters over their entire life cycle to the initial investment year to obtain the discounted operating cost values ​​of different pipeline diameters; According to the discounted value of initial investment and operating costs of pipelines with different diameters, the total cost present value of different pipeline diameters is determined, and the pipeline diameter with the lowest total cost present value is selected as the optimal diameter.

2. The method for optimizing and evaluating pipeline diameter energy conservation based on the entire life cycle according to claim 1, characterized in that: The calculation of the power loss due to the pipeline pressure drop of different pipeline diameters and the annual operating loss electricity cost of different pipeline diameters over the entire life cycle are calculated based on the actual or predicted electricity cost, including: According to the pipeline transmission pressure drop, pipeline transmission volume and fluid density of different pipeline diameters, the effective power loss of different pipeline diameters is calculated; Based on the effective power loss of different pipeline diameters and the actual pump efficiency for pressurizing the pipeline conveying medium, the equipment shaft power of the conveying loss of different pipeline diameters is calculated; The power consumption of transmission loss of different pipeline diameters is calculated based on the equipment shaft power and pipeline annual operation time t. Based on the transmission loss of electricity for different pipeline diameters and the actual or predicted annual electricity charges, the annual operating loss electricity charges for different pipeline diameters over their entire life cycle are calculated.

3. The method for optimizing pipeline diameter energy conservation based on the entire life cycle according to claim 2, characterized in that: The effective power lost by the pipe diameter is: p 压降 =ρgQH 压降 Where ρ is the density of the transported flow; g is the acceleration of gravity; Q is the volume flow rate of the transported flow; H 压降 The pressure drop in the pipeline.

4. The method for optimizing pipeline diameter energy conservation based on the entire life cycle according to claim 3 is characterized in that: The equipment shaft power of the transmission loss of the pipeline diameter is: p 轴功率 (p 压降 / η Where η is the actual pump efficiency for pressurizing the medium transported in the pipeline.

5. The method for optimizing pipeline diameter energy conservation based on the entire life cycle according to claim 4 is characterized in that: The amount of electricity lost in the transmission of the pipeline diameter is: W 电 =P 轴功率 ×T Wherein, T is the annual operation time of pipeline capacity; The annual operating loss electricity cost over the entire life cycle of the pipeline diameter is: HAVE BEEN 电 =W 电 ×C 电费 Among them, C 电费 The actual or projected year-over-year electricity cost.

6. The method for optimizing pipeline diameter energy conservation based on the entire life cycle according to claim 1 is characterized in that: The discounted value of the operating cost of the pipeline diameter is: PV 运行 =∑E 电(t) ×(1+i) -t ,t=1,……,n Among them, E 电 is the annual operating loss electricity cost during the entire life cycle; i is the benchmark rate of return; t is the number of years the pipeline diameter has been put into operation; and n is the design life of the pipeline.

7. The method for optimizing pipeline diameter energy conservation based on the entire life cycle according to claim 1, characterized in that: The total present cost of the pipe diameter is: NPV=C 管道 +PV 运行 Among them, C 管道 is the initial investment in the pipeline; PV 运行 is the discounted value of operating expenses.

8. A pipeline diameter energy-saving optimization evaluation system based on the entire life cycle, characterized in that: include: Pipeline transportation pressure drop determination module, used to determine the pipeline transportation pressure drop of different pipeline diameters; The module for determining the annual operating loss electricity cost is used to calculate the transmission loss electricity based on the pipeline transmission pressure drop of different pipeline diameters, and calculate the annual operating loss electricity cost of different pipeline diameters over the entire life cycle based on the actual or predicted electricity cost; The operating cost discount value determination module is used to discount the annual operating loss electricity costs over the entire life cycle of different pipeline diameters to the initial investment year to obtain the operating cost discount value of different pipeline diameters; The optimal pipe diameter determination module is used to determine the total cost present value of different pipe diameters based on the discounted value of the initial investment and operating costs of the pipes of different pipe diameters, and select the pipe diameter with the lowest total cost present value as the optimal pipe diameter.

9. A processing device, characterized in that: It includes computer program instructions, wherein when the computer program instructions are executed by a processing device, they are used to implement the steps corresponding to the pipeline diameter energy-saving optimization evaluation method based on the entire life cycle according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer program instructions, wherein the computer program instructions, when executed by a processor, are used to implement the steps corresponding to the pipeline diameter energy-saving optimization evaluation method based on the entire life cycle according to any one of claims 1 to 7.

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