LNG cold energy utilization project assembly type technical scheme evaluation method, system, equipment and medium

Abstract

The invention relates to an LNG (Liquefied Natural Gas) cold energy utilization project assembly type technical scheme evaluation method, system and equipment and a medium. The method comprises the following steps: selecting a feasible technical scheme of a to-be-evaluated LNG cold energy utilization project meeting the requirements of a project design stage; generating a multi-dimensional technical scheme evaluation result of the feasible technical scheme of the to-be-evaluated LNG cold energy utilization project; when the feasible technical scheme of the to-be-evaluated LNG cold energy utilization project is a single module, taking a conventional technical scheme evaluation result of the feasible technical scheme of the to-be-evaluated LNG cold energy utilization project as a fabricated technical scheme evaluation result of the technical scheme of the LNG cold energy utilization project under the single module; when the feasible technical scheme of the to-be-evaluated LNG cold energy utilization project is multi-module, generating a multi-module combination evaluation result of the feasible technical scheme of the to-be-evaluated LNG cold energy utilization project, and taking the multi-module combination evaluation result as an assembly type technical scheme evaluation result of the technical scheme of the to-be-evaluated LNG cold energy utilization project under the multi-module condition; and determining the technical scheme of the to-be-evaluated LNG cold energy utilization project and the corresponding system configuration thereof.

Description

Technical Field

[0001] This invention relates to the field of economic evaluation technology for LNG and new energy, and in particular to an evaluation method, system, equipment and medium for prefabricated technical solutions of LNG cold energy utilization projects. Background Technology

[0002] Currently, China's energy structure is rapidly shifting towards diversification, cleaner energy, and low-carbon development. As a clean fossil fuel, liquefied natural gas (LNG) is inevitably being integrated with new energy sources. Integrating LNG with new energy projects such as cold energy and hydrogen energy is a crucial investment direction. Combining different types of projects to form an energy utilization chain and promoting coordinated development across various sectors has become an increasingly urgent task. However, the integrated development of "LNG + new energy" involves the comprehensive application of multiple energy types, exhibiting characteristics such as diversity, varying scales, flexible operating models, and complex costs and revenues. Furthermore, most projects are in their early stages of development, lacking mature technical solution evaluation and optimization systems. Compared to conventional LNG projects, the evaluation of technical solutions for various LNG cold energy utilization projects faces challenges such as missing historical data and insufficient accuracy of reference indicators. Differences exist in system coupling characteristics, energy efficiency matching relationships, and collaborative operation logic. Therefore, how to conduct integrated collaborative analysis of projects is a key focus for technical and investment decisions.

[0003] However, existing technical solutions mostly involve evaluation methods and parameter research for single new energy projects (such as wind power, photovoltaic power generation, CCUS, etc.), without addressing the integrated and collaborative evaluation of new energy projects based on LNG utilization. Furthermore, they are limited to conventional evaluation methods, and the evaluation models lack flexible consideration of key technical factors such as multi-energy complementarity, system integration, and operation strategies. The system coupling relationship, energy efficiency matching, and operation coordination mechanism are still unclear, the technical evaluation standards differ, and the integrated and collaborative optimization of projects is imperfect. It is necessary to further improve the comprehensiveness of project technical solution design and optimization support. Summary of the Invention

[0004] To address the aforementioned issues, the purpose of this invention is to provide a method, system, equipment, and medium for evaluating prefabricated technical solutions for LNG cold energy utilization projects. This method can solve problems such as the diversity of new energy project types, different system coupling methods, varying technical evaluation standards, and imperfect integrated collaborative optimization of projects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Firstly, it provides a method for evaluating prefabricated technical solutions for LNG cold energy utilization projects, comprising: A technical solution evaluation method is adopted to drive the conventional technical solution evaluation model to calculate each technical solution of the LNG cold energy utilization project to be evaluated, and select the feasible technical solution of the LNG cold energy utilization project to be evaluated that meets the requirements of the project design stage. A conventional technical solution evaluation model is used to evaluate various combinations of feasible technical solutions for the LNG cold energy utilization project to be evaluated, and multi-dimensional technical solution evaluation results of the feasible technical solutions for the LNG cold energy utilization project to be evaluated are generated. When the feasible technical solution of the LNG cold energy utilization project to be evaluated is a single module, the evaluation result of the conventional technical solution of the feasible technical solution of the LNG cold energy utilization project to be evaluated shall be used as the evaluation result of the prefabricated technical solution of the technical solution of the LNG cold energy utilization project under the single module. When the feasible technical solutions of the LNG cold energy utilization project to be evaluated are multi-module, the infrastructure sharing optimization model, carbon trading impact analysis model, energy synergy optimization model and conventional technical solution evaluation model are adopted. Based on the multi-dimensional technical solution evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, the multi-module combination evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated are generated, which serve as the prefabricated technical solution evaluation results of the technical solutions of the LNG cold energy utilization project under multiple modules. Based on the evaluation results of the prefabricated technical solutions of the feasible technical solutions for the LNG cold energy utilization project to be evaluated, the technical solutions and corresponding system configurations of the LNG cold energy utilization project to be evaluated are determined.

[0006] Furthermore, the technical solution evaluation method drives the conventional technical solution evaluation model to calculate each technical solution of the LNG cold energy utilization project to be evaluated, and selects the technical solution of the LNG cold energy utilization project to be evaluated that meets the requirements of the project design stage, as the feasible technical solution of the LNG cold energy utilization project to be evaluated, including: Based on the actual construction and operation conditions of the LNG cold energy utilization project to be evaluated, a conventional technical solution evaluation model is constructed to determine the conventional technical solution evaluation results of each technical solution of the LNG cold energy utilization project to be evaluated. The conventional technical solution evaluation model is driven by performance analysis or constraint back-calculation to perform calculations and select the technical solution of the LNG cold energy utilization project to be evaluated that meets the requirements of the project design stage.

[0007] Furthermore, the evaluation model for the conventional technical solution includes: The system energy flow analysis module is used to analyze the potential system configuration of LNG cold energy utilization projects, determine the energy input and output terminals and equipment composition, and generate system energy flow analysis results. The equipment configuration analysis module is used to generate equipment configuration analysis results by calculating the overall equipment matching index based on the equipment configuration data of the LNG cold energy utilization project. The operation performance analysis module is used to generate operation performance analysis results based on the operation parameter data of the LNG cold energy utilization project; The cost and benefit analysis module is used to generate analysis results from the perspectives of cost composition and benefit type based on the cost and revenue data of LNG cold energy utilization projects.

[0008] Furthermore, the multi-dimensional technical solution evaluation results include system energy flow analysis results, equipment configuration analysis results, operational performance analysis results, and cost composition and benefit type analysis results for various combinations of feasible technical solutions for LNG cold energy utilization projects.

[0009] Furthermore, when the feasible technical solution of the LNG cold energy utilization project to be evaluated is multi-module, an infrastructure sharing optimization model, a carbon trading impact analysis model, an energy synergy optimization model, and a conventional technical solution evaluation model are adopted. Based on the multi-dimensional technical solution evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, a multi-module combination evaluation result of the feasible technical solutions of the LNG cold energy utilization project to be evaluated is generated, which serves as the prefabricated technical solution evaluation result of the technical solution of the multi-module LNG cold energy utilization project, including: Using the established infrastructure sharing optimization model, carbon trading impact analysis model, and energy synergy optimization model, and based on the multi-dimensional technical solution evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, the optimization point analysis of the feasible technical solutions of the LNG cold energy utilization project to be evaluated is carried out, and the system synergy optimization analysis results, carbon emission reduction efficiency analysis results, and energy substitution effect analysis results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated are determined. The system collaborative optimization analysis results, carbon emission reduction efficiency analysis results, and energy substitution effect analysis results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated are combined with the conventional technical solution evaluation model to obtain the multi-module combined evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, which serve as the prefabricated technical solution evaluation results of the multi-module LNG cold energy utilization project.

[0010] Furthermore, the infrastructure sharing optimization model is as follows:

[0011] in, The savings in investment for infrastructure sharing are the result of system collaborative optimization analysis; Indexed for infrastructure types; The facility reuse efficiency coefficient; Costs of upgrading shared facilities; To improve the utilization rate of shared facilities; The incremental model for carbon trading revenue is as follows:

[0012] in, The results of the carbon trading revenue increment analysis are equivalent to the carbon emission reduction efficiency analysis results. To reduce carbon emissions by replacing traditional energy sources; For the project's own carbon emissions; The price for carbon allowance trading; The percentage of monitoring report verification costs; Discount factor; The energy synergistic optimization model is as follows:

[0013] in, The result of the energy substitution effect analysis is the amount of cost savings from energy substitution. Index for energy type; This refers to the unit price for external procurement. This refers to the unit price for internal supply costs. This represents the actual amount of substitution.

[0014] Furthermore, based on the evaluation results of the prefabricated technical solutions of the feasible technical solutions for the LNG cold energy utilization project to be evaluated, the technical solutions and corresponding system configurations of the LNG cold energy utilization project to be evaluated are determined, including: Based on the evaluation results of the feasible technical solutions and corresponding prefabricated technical solutions of the LNG cold energy utilization project to be evaluated, the core indicators are analyzed. Based on the core indicators calculated and the decision-making indicator requirements stipulated by the enterprise or industry benchmark indicator library, all feasible technical solutions for the LNG cold energy utilization project to be evaluated are selected, and the final technical solution and corresponding system configuration of the LNG cold energy utilization project to be evaluated are determined.

[0015] Secondly, an evaluation system for prefabricated technical solutions in LNG cold energy utilization projects is provided, including: The feasible technical solution determination module is used to drive the conventional technical solution evaluation model to calculate each technical solution of the LNG cold energy utilization project to be evaluated using technical solution evaluation methods, and select the feasible technical solutions of the LNG cold energy utilization project to be evaluated that meet the requirements of the project design stage. The multi-dimensional technical solution evaluation result generation module is used to evaluate various combinations of feasible technical solutions for the LNG cold energy utilization project to be evaluated using a conventional technical solution evaluation model, and generate multi-dimensional technical solution evaluation results for the feasible technical solutions of the LNG cold energy utilization project to be evaluated. The single-module evaluation module is used to evaluate the conventional technical solution of the LNG cold energy utilization project under the single-module model when the feasible technical solution of the LNG cold energy utilization project to be evaluated is a single module. The multi-module combination evaluation module is used when the feasible technical solutions of the LNG cold energy utilization project to be evaluated are multi-module. It adopts infrastructure sharing optimization model, carbon trading impact analysis model, energy synergy optimization model and conventional technical solution evaluation model. Based on the multi-dimensional technical solution evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, it generates the multi-module combination evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, which serves as the prefabricated technical solution evaluation result of the technical solutions of the LNG cold energy utilization project under multi-module. The technical solution determination module is used to determine the technical solution and its corresponding system configuration for the LNG cold energy utilization project to be evaluated, based on the evaluation results of the prefabricated technical solution of the feasible technical solution of the LNG cold energy utilization project to be evaluated.

[0016] Thirdly, a processing device is provided, including computer program instructions, wherein when the computer program instructions are executed by the processing device, they are used to implement the steps corresponding to the above-mentioned evaluation method for the prefabricated technical solution of the LNG cold energy utilization project.

[0017] Fourthly, a computer-readable storage medium is provided, wherein computer program instructions are stored on the computer-readable storage medium, wherein when the computer program instructions are executed by a processor, they are used to implement the steps corresponding to the above-mentioned evaluation method for the prefabricated technical solution of the LNG cold energy utilization project.

[0018] The present invention has the following advantages due to the adoption of the above technical solutions: 1. This invention introduces the concept of prefabricated construction into the evaluation and optimization of technical solutions for LNG cold energy utilization projects. By conducting multi-faceted evaluations, it can effectively improve the applicability of technical solution evaluation methods, adapt to the system integration characteristics of LNG cold energy utilization projects, and effectively solve technical problems such as the diversity of new energy project types, different system coupling methods, differences in technical evaluation standards, and imperfect integrated collaborative optimization of projects. It realizes multi-dimensional, full-industry chain project technical evaluation and system optimization, enhances the efficiency and quality of technical solution analysis, and provides a more reliable decision-making basis for the technological innovation and promotion of such projects.

[0019] 2. Conventional technical solution evaluation methods are insufficient to support the system design and operational optimization of emerging energy projects, leading to difficulties in technology selection and integration for enterprises transitioning to new strategies. This invention establishes differentiated and diversified models with independent core technologies for cold, electricity, hydrogen, and carbon energy, continuously improving the technical solution evaluation method system and enhancing enterprises' system analysis capabilities for investment projects. By addressing technical challenges in LNG cold energy utilization projects, such as insufficient accuracy of system reference indicators and unclear multi-energy coupling laws, it upgrades and optimizes existing evaluation methods and models, quantifies system performance indicators from multiple dimensions, and further improves the decision-making accuracy and design efficiency of project technology selection and system integration.

[0020] 3. This invention innovatively proposes a combined and standardized evaluation method, which expands and extends the technical solution analysis system for LNG cold energy utilization projects, and enhances the market adaptability of enterprise project technical decision-making management with a universal and flexible technical solution evaluation model.

[0021] 4. The evaluation elements of LNG cold energy utilization projects are complex and the evaluation schemes involve a wide range of aspects. Adopting a general structural design makes it easier to adapt to changes in calculation conditions. This invention divides and integrates the technical evaluation model elements of the project. The calculation conditions of a single module can be compiled separately according to the actual situation of the project. The modules are interconnected and can be decoupled and reused. It can achieve flexible structural matching of the scheme evaluation model in various LNG cold energy utilization projects. New analysis content can also be added according to changes in technical schemes and market conditions, which improves the versatility of the evaluation model and makes scheme analysis and optimization more flexible.

[0022] 5. The scope of the technical solution evaluation of this invention is expanded from a single project to cover the entire industrial chain dimension, including LNG resource trading, LNG receiving terminals, natural gas pipelines, end-use such as gas-fired power plant power generation and sales, and carbon trading. This enables the technical analysis to be upgraded from micro-equipment evaluation to macro-system optimization, and from static parameter accumulation to dynamic operation prediction. It supports the flexible combination of projects in various links of the natural gas industry chain, supports the technical decision-making demonstration of LNG cold energy utilization projects, and ensures the integrity of project evaluation.

[0023] 6. This invention, through quantitative analysis of the benefits of the industrial chain, can drive overall system optimization, further explore the project's potential for cost reduction and efficiency improvement, and the transformation of results can not only improve system performance and operational efficiency, but also promote the widespread application of related technologies and experience, and drive the technological progress of the entire industry.

[0024] In summary, this invention can be widely applied in the field of LNG and new energy economic evaluation technology. Attached Figure Description

[0025] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. In the drawings: Figure 1 This is a schematic diagram of a method flow provided in an embodiment of the present invention. Detailed Implementation

[0026] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0027] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0028] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0029] Currently, existing technical solutions mostly involve evaluation methods and parameter research for single new energy projects (such as wind power, photovoltaic power generation, CCUS, etc.), without addressing the integrated and collaborative evaluation of new energy projects based on LNG utilization. Furthermore, they are limited to conventional evaluation methods, and the evaluation models lack flexible consideration of key technical factors such as multi-energy complementarity, system integration, and operation strategies. The system coupling relationship, energy efficiency matching, and operation coordination mechanism are still unclear, the technical evaluation standards differ, and the integrated and collaborative optimization of projects is imperfect. It is necessary to further improve the comprehensiveness of project technical solution design and optimization support. This invention provides a method for evaluating prefabricated technical solutions for LNG cold energy utilization projects, comprising: employing a technical solution evaluation method to drive a conventional technical solution evaluation model to perform calculations on various technical solutions of the LNG cold energy utilization project to be evaluated, and selecting feasible technical solutions for the LNG cold energy utilization project that meet the requirements of the project design stage; evaluating various combinations of feasible technical solutions for the LNG cold energy utilization project to be evaluated using the conventional technical solution evaluation model, and generating multi-dimensional technical solution evaluation results for the feasible technical solutions of the LNG cold energy utilization project to be evaluated; when the feasible technical solution of the LNG cold energy utilization project to be evaluated is a single module, using the conventional technical solution evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated as the LN under the single module. The evaluation results of the prefabricated technical scheme of the LNG cold energy utilization project are as follows: When the feasible technical scheme of the LNG cold energy utilization project to be evaluated is multi-module, the infrastructure sharing optimization model, carbon trading impact analysis model, energy synergy optimization model and conventional technical scheme evaluation model are adopted. Based on the multi-dimensional technical scheme evaluation results of the feasible technical scheme of the LNG cold energy utilization project to be evaluated, the multi-module combination evaluation results of the feasible technical scheme of the LNG cold energy utilization project to be evaluated are generated, which serve as the prefabricated technical scheme evaluation results of the LNG cold energy utilization project under multi-module conditions. Based on the prefabricated technical scheme evaluation results of the feasible technical scheme of the LNG cold energy utilization project to be evaluated, the technical scheme of the LNG cold energy utilization project to be evaluated and its corresponding system configuration are determined.

[0030] Example 1 like Figure 1 As shown in the figure, this embodiment provides an evaluation method for prefabricated technical solutions in LNG cold energy utilization projects, including the following steps: 1) The technical solution evaluation method is adopted to drive the conventional technical solution evaluation model to calculate each technical solution of the LNG cold energy utilization project to be evaluated, and select the technical solution of the LNG cold energy utilization project to be evaluated that meets the requirements of the project design stage, and take it as the feasible technical solution of the LNG cold energy utilization project to be evaluated.

[0031] Specifically, LNG cold energy utilization projects include cold energy power generation projects, cold energy air separation projects, cold water aquaculture projects, and refrigeration station projects.

[0032] Specifically, the technical solution for an LNG cold energy utilization project refers to the specific technical implementation method of the LNG cold energy utilization project. For example, a cold energy power generation project uses the cold energy of LNG for energy conversion. It should be designed with a certain scale, how to configure the corresponding equipment and facilities, the size of the site, and whether the generated electricity is for self-consumption or grid-connected sales.

[0033] The specific process for this step is as follows: 1.1) Based on the actual construction and operation conditions of the LNG cold energy utilization project to be evaluated, a conventional technical solution evaluation model is constructed to determine the conventional technical solution evaluation results of each technical solution of the LNG cold energy utilization project to be evaluated, including system energy flow analysis results, equipment configuration analysis results, operation performance analysis results, and cost composition and benefit type analysis results.

[0034] Specifically, the evaluation model for conventional technical solutions includes a system energy flow analysis module, an equipment configuration analysis module, an operational performance analysis module, a cost module, and a benefit analysis module, among which: (1) System energy flow analysis module, used to analyze the potential system configuration of LNG cold energy utilization projects, determine the energy input and output terminals and equipment composition, and generate system energy flow analysis results.

[0035] Specifically, system configuration refers to the basic topology and functional layout formed by integrating various unit equipment, process flows, and connecting pipelines in a system to achieve specific energy conversion and utilization goals. Its core lies in determining the flow paths, conversion sequences, and integrated coupling relationships of energy and matter. For LNG cold energy utilization projects, the system configuration mainly describes the physical connections and functional coupling relationships between the LNG supply chain (receiving, storage, and gasification) and various cold energy utilization systems.

[0036] System energy flow refers to the entire process of energy input, transmission, conversion, output, and loss in a given system configuration. Its analysis covers various scenarios such as cold energy utilization, energy conversion, energy substitution, and carbon emission reduction, including energy input / output types (such as LNG cold energy and electrical energy), system energy efficiency (energy conversion efficiency percentage), and energy loss data (such as cold energy loss).

[0037] Specifically, a system energy flow analysis is conducted using some typical scenarios of an LNG cold energy utilization project as an example: ① Cold energy power generation project Cold energy power generation projects primarily rely on existing LNG receiving terminals. They typically convert the cold energy of LNG into electrical energy through grid connection without connecting to the mains, thus providing power to the LNG receiving terminals. The project's technical performance is usually analyzed based on the energy conversion efficiency of the self-generating system. The system configuration is a coupled storage and release structure of "electrical energy-cold energy-potential energy". The energy input / output terminals and equipment are as follows: Energy input: physical cold energy carried by LNG, electrical energy to drive pumps and other equipment.

[0038] Energy output: electricity, gaseous natural gas (at room temperature).

[0039] The core equipment consists of: LNG pump, main heat exchanger (for heat exchange between LNG and intermediate refrigerant), evaporator (for heat exchange between refrigerant and working fluid such as propane), expander, generator, condenser, and working fluid pump.

[0040] ②Cooling Station Project The LNG-refrigerant exchange station project transfers the cooling capacity of LNG to a refrigerant, while simultaneously vaporizing the LNG into natural gas for delivery to the natural gas pipeline network. The resulting cooling energy supplies downstream users. The performance analysis of the LNG-refrigerant exchange station project focuses on cooling capacity transfer efficiency and system stability. Its system configuration is a direct or indirect LNG-refrigerant exchange structure. The energy input / output terminals and equipment are as follows: Energy input: LNG cold energy.

[0041] Energy output end: cold energy carried by refrigerant (supplying downstream users), gaseous natural gas.

[0042] The core equipment consists of: LNG pumps, heat exchangers (LNG and refrigerant heat exchange), refrigerant circulation pumps, refrigerant storage tanks, and pipelines.

[0043] ③ Cold water aquaculture project Cold-water aquaculture projects mainly include three technical solutions: open-channel seawater cage aquaculture, land-based recirculating aquaculture system (RAS) industrialized aquaculture, and offshore cage aquaculture with LNG cold source discharge outlets. The technical performance of cold-water aquaculture projects is typically analyzed based on yield per unit area and system stability. Given the technical characteristics of the aquaculture industry, emphasis is placed on assessing the ability to control the aquaculture environment. Indicators such as capacity utilization and equipment compatibility are commonly used to evaluate project performance. The profitability of different solutions is usually calculated based on the revenue from off-season sales of aquaculture products such as fish eggs, fry, and adult fish. Furthermore, considering the actual characteristics of the aquaculture industry, emphasis is placed on yield per unit area, and indicators such as cost-profit ratio and input-output ratio are typically used to calculate the project's profitability. The system configuration is a direct or indirect heat exchange and temperature control structure using LNG-seawater. The energy input / output terminals and equipment composition are as follows: Energy input: LNG cold energy.

[0044] Energy output end: temperature-controlled seawater and gaseous natural gas.

[0045] Core equipment components: LNG pump, seawater pump, heat exchange system (such as plate heat exchanger), aquaculture pond / cage, and water treatment system.

[0046] (2) Equipment configuration analysis module, which is used to generate equipment configuration analysis results by calculating the overall equipment matching index based on the equipment configuration data of the LNG cold energy utilization project.

[0047] Specifically, equipment configuration data is used to describe information about the entire set of hardware facilities in the project, including equipment list (names, models and quantities of all major and auxiliary equipment in the system); equipment performance data (rated power, processing capacity, storage capacity, design efficiency, allowable working range, etc. of the equipment); equipment space data (plan layout information of the equipment, the connection relationship between them and the specifications of pipes or cables); and equipment economic and life data (purchase cost, installation cost, expected service life and maintenance cycle of the equipment).

[0048] Specifically, the equipment configuration analysis for LNG cold energy utilization projects typically employs the main equipment plus auxiliary systems method, generating the following equipment configuration analysis results: (1) in, This refers to the overall equipment compatibility index. For device type indexing; For the first The actual configuration capacity of this type of equipment; For the first Theoretical capacity requirements for this type of equipment; For the first Weighting coefficients for different types of devices.

[0049] (3) Operational performance analysis module, used to generate operational performance analysis results based on the operational parameter data of the LNG cold energy utilization project: (2) in, For operational stability indicators; Abnormal operating time during the statistical period; This represents the total running time during the statistical period.

[0050] (4) Cost and revenue analysis module, used to generate analysis results from the perspectives of cost composition and revenue type based on cost and revenue data of LNG cold energy utilization projects.

[0051] Specifically, cost data includes the cost of purchased raw and auxiliary materials, personnel costs, repair costs, loss costs, safety production costs, other manufacturing costs, other management costs, system standby costs, insurance premiums, operating expenses, depreciation, amortization, and financial expenses. LNG cold energy utilization projects are generally built in conjunction with receiving terminal projects. Resources can be relied upon by the receiving terminal, reducing project operating costs. For example, labor costs, safety production costs, other manufacturing costs, other management costs, and insurance premiums can be borne by the receiving terminal or, depending on the project's reliance on the receiving terminal, by the cold energy utilization project at its discretion.

[0052] Specifically, revenue data includes revenue from the sale of main products, revenue from subsidies and tax breaks obtained in accordance with national or local policies, and revenue from trading environmental rights (such as carbon emission reductions and green certificates) generated from project operations.

[0053] Specifically, the cost structure analysis of LNG cold energy utilization projects typically adopts the production cost plus period expenses method. The production cost structure analysis results in the generated cost structure and revenue type analysis results are as follows: (3) in, For production costs; These are period expenses.

[0054] Based on the revenue data, the revenue type analysis results in the generated cost composition and revenue type analysis results are as follows: (4) in, The results are analyzed from the perspective of income type; This includes revenue data such as main product revenue, policy revenue, and environmental rights revenue; This represents the number of types of project revenue.

[0055] Specifically, taking some typical scenarios of LNG cold energy utilization projects as examples, we will analyze the revenue types to explain the revenue data in detail. : ① Cold energy power generation project By recovering cold energy, the power supplied to the receiving station by generator sets and supporting facilities can be increased, reducing the amount of electricity purchased from external sources. The savings in purchased electricity costs will be used as revenue data for the cold energy power generation project. This includes income from electricity savings due to self-generated and self-consumed electricity. Revenue from surplus electricity sold to the grid Two parts: (5) The revenue from electricity cost savings due to self-generated and self-consumed electricity is the revenue from the electricity cost savings achieved by replacing the equivalent amount of electricity purchased from the power grid company with the project's annual self-generated and self-consumed electricity. Based on the power consumption cycle of the receiving station project, which is divided into peak, mid-peak, average, and off-peak periods, the revenue is calculated according to the time-of-use electricity prices for industrial and commercial users in the project's location. The calculation formula is as follows: (6) in, This refers to electricity used for personal purposes. The price is for electricity (RMB / kWh, excluding tax).

[0056] Revenue from surplus electricity sold to the grid is the revenue generated from selling any remaining electricity to the grid company after the project has met its annual grid-connected electricity and self-consumption requirements. The calculation formula is as follows: (7) in, This refers to the surplus electricity that is fed into the grid. The on-grid electricity price is (RMB / kWh, excluding tax).

[0057] ②Cooling Station Project The revenue of the cooling exchange station project comes from supplying cooling energy to downstream users (such as cold storage facilities, freeze-drying plants, and data centers) and collecting cooling fees. : (8) in, Annual cooling capacity (kWh or GJ); The unit price for cooling is (RMB / kWh or RMB / GJ, excluding tax).

[0058] ③ Cold water aquaculture project Revenue data generated by cold-water aquaculture projects through the sale of aquaculture products such as fish eggs, fry, and adult fish. : (9) in, For the quantity of farmed products sold (kg or tails); Price is the unit price of aquaculture products (RMB / kg or RMB / tail, excluding tax).

[0059] 1.2) Using performance analysis or constraint back-calculation methods, the conventional technical solution evaluation model is driven to perform calculations, and the technical solution of the LNG cold energy utilization project to be evaluated that meets the requirements of the project design stage is selected.

[0060] Specifically, the system configuration, equipment selection, and operating parameters differ for different types of LNG cold energy utilization projects. Based on the characteristics of each type of LNG cold energy utilization project, appropriate technical solution evaluation methods are selected to analyze the projects, assess their technical feasibility and performance, and determine whether the technical solution is suitable for the project design phase. Evaluation methods can include performance analysis or constraint-based reverse engineering. (i) Performance analysis is a forward analysis method. Specifically, it involves inputting a specific technical solution (including equipment parameters and operating strategies), and using a conventional technical solution evaluation model to calculate the system energy flow analysis results, equipment configuration analysis results, operational performance analysis results, and cost composition and benefit type analysis results for each technical solution. Then, based on the above analysis results and pre-set project design stage requirements (i.e., preset benchmarks), the feasibility of each technical solution is determined. If all analysis results meet or exceed the pre-set project design stage requirements, the technical solution is considered feasible; otherwise, the technical solution is infeasible or needs optimization.

[0061] (ii) Constraint-based reverse engineering is a reverse design approach. Specifically, it involves inputting the project design phase requirements of the LNG cold energy utilization project to be evaluated, using a conventional technical solution evaluation model to deduce the required technical solution, and then comparing this required technical solution with existing technical solutions for the LNG cold energy utilization project to determine the feasibility of each solution. If the equipment parameters in the existing technical solutions are better than or equal to those in the required technical solutions, and the cost is controllable, then the existing technical solutions are feasible; otherwise, the existing technical solutions are not feasible.

[0062] Specifically, when using the constrained back-calculation method in the cooling station project of LNG cold energy utilization projects, different technical solutions with different cooling scales can be set up. Under the condition of achieving the same system performance and financial internal rate of return, the key equipment parameters, system configuration schemes and cooling distances obtained by comparing different technical solutions can help select the optimal technical solution.

[0063] 2) Based on the coupling of multiple scenarios such as cold energy power generation, liquid air energy storage, cooling stations and cold water aquaculture, a conventional technical solution evaluation model is used to evaluate various combinations of feasible technical solutions for the LNG cold energy utilization project to be evaluated, and multi-dimensional technical solution evaluation results are generated for the feasible technical solutions of the LNG cold energy utilization project to be evaluated. Among them, the multi-dimensional technical solution evaluation results include system energy flow analysis results, equipment configuration analysis results, operation performance analysis results, and cost composition and benefit type analysis results for various combinations of feasible technical solutions for the LNG cold energy utilization project.

[0064] 3) Based on the actual situation of the LNG cold energy utilization project to be evaluated, determine whether the feasible technical solution for the LNG cold energy utilization project to be evaluated is a single module or multiple modules.

[0065] Specifically, a single module refers to a conventional technical solution for the LNG cold energy utilization project being evaluated, meaning it only includes basic technical functional modules and does not consider specific optimization modules such as system synergy, carbon trading, and energy substitution. A multi-module refers to a technical solution for the LNG cold energy utilization project being evaluated that involves both conventional technical solutions and specific optimization modules considering system synergy, carbon trading, and energy substitution.

[0066] 4) When the feasible technical solution of the LNG cold energy utilization project to be evaluated is a single module, the evaluation result of the conventional technical solution of the feasible technical solution of the LNG cold energy utilization project to be evaluated shall be used as the evaluation result of the prefabricated technical solution of the technical solution of the LNG cold energy utilization project under the single module.

[0067] Specifically, the various combinations of feasible technical solutions for the LNG cold energy utilization project to be evaluated refer to the comprehensive technical solution formed by integrating and coupling different feasible technical solutions under the LNG cold energy utilization project to be evaluated.

[0068] 5) When the feasible technical solutions for the LNG cold energy utilization project to be evaluated are multi-module, the infrastructure sharing optimization model, carbon trading impact analysis model, energy synergy optimization model, and conventional technical solution evaluation model are adopted. Based on the multi-dimensional technical solution evaluation results of the feasible technical solutions for the LNG cold energy utilization project to be evaluated, the feasible technical solutions for the LNG cold energy utilization project to be evaluated are evaluated, and the multi-module combination evaluation results of the feasible technical solutions for the LNG cold energy utilization project to be evaluated are generated. This serves as the prefabricated technical solution evaluation result of the technical solutions for the multi-module LNG cold energy utilization project, specifically: 5.1) Considering factors such as system coordination, carbon emission reduction, and energy substitution, establish an infrastructure sharing optimization model, a carbon trading impact analysis model, and an energy coordination optimization model: 5.1.1) Conduct system-wide collaborative analysis on the LNG cold energy utilization project, generate data on the reduction in technical investment resulting from the shared infrastructure list, and establish an infrastructure sharing optimization model (this model corresponds to the optimization points of system collaboration): (10) in, The savings in investment for infrastructure sharing are the result of system collaborative optimization analysis; Index infrastructure types (tanks, pipelines, flares, gasifiers, etc.); The facility reuse efficiency coefficient (0 ≤ ≤1, efficiency loss due to sharing); Cost of renovation of shared facilities (ten thousand yuan / unit); The facility sharing utilization rate (actual usage / design capacity), including the infrastructure type index. Cost of upgrading shared facilities Facility sharing and utilization rate All data are provided by equipment configuration analysis results, including facility reuse efficiency coefficients. The analysis is aided by the results of the performance analysis.

[0069] 5.1.2) Conduct carbon emission reduction analysis on LNG cold energy utilization projects, generate data on the increase in project revenue brought about by carbon quota trading, and establish a carbon trading revenue increment model (this model corresponds to the optimization point of carbon emission reduction): (11) in, The results of the carbon trading revenue increment analysis are equivalent to the carbon emission reduction efficiency analysis results. To reduce carbon emissions (tons of CO2e) by replacing traditional energy sources. For the project's own carbon emissions; The price for carbon quota trading (RMB / ton); The percentage of monitoring report verification costs; The percentage of monitoring report verification costs is the discount factor. The results are provided from the perspectives of cost composition and revenue type analysis.

[0070] Specifically, the carbon emission reduction of a project can be calculated by multiplying the reduced electricity generation from replacing traditional cooling / electricity sources with an LNG cooling energy utilization project by a carbon emission factor. Subtract the carbon emissions generated by the project itself. This yields the final carbon emission reduction: (12) in, The amount of electricity required to generate power using conventional cooling / electricity; The amount of electricity required for cold energy utilization projects; The carbon emission factor is used, and the power generation is provided by the system energy flow analysis results.

[0071] Specifically, the carbon emissions generated by the LNG cold energy utilization project itself It can be divided into three parts according to the construction, operation, and demolition stages: ① Construction phase Carbon emissions from the construction phase of LNG cold energy utilization projects involve carbon emissions from the manufacturing and transportation of disposable materials consumed during construction, fuel and energy consumed in mechanized construction, and fuel consumed during material transportation. LNG cold energy utilization projects require the consumption of various raw materials during construction and involve the production and assembly of various components, thus involving multiple physicochemical processes of raw materials.

[0072] In actual calculations, carbon emissions during the construction phase can be assessed using the input-output LCA (Life Cycle Assessment) method, based on the latest input-output table for the LNG cold energy utilization project site. An assessment will be conducted. The specific steps are as follows: First, the raw materials required for the LNG cold energy utilization project will be allocated to different industrial sectors. Then, the amount of standard coal required for the LNG cold energy utilization project will be calculated based on the energy intensity of each industrial sector. Finally, the carbon emissions during the construction phase will be converted using a conversion factor. This conversion factor can be obtained from energy management agencies, and the calculation formula is as follows: (13) in, For the first Energy intensity of each industrial sector; For the first The amount of raw materials consumed by each industrial sector; This is the conversion factor.

[0073] ② Operational phase The carbon emissions from LNG cold energy utilization projects during operation mainly come from energy consumption during production and transportation, such as electricity, natural gas, and fuel oil. Carbon emissions during operation can be calculated using the emission factor method. The specific steps are: first, measure the amount of energy consumed during the daily production and transportation processes of the LNG cold energy utilization project. Then multiply by the corresponding emission factor Ultimately, the carbon emissions during the operation were determined. : (14) (Note: Activities that contribute to carbon emissions include the consumption of each type of fossil fuel, net electricity purchases, etc. Emission factors include carbon content per unit of calorific value, elemental carbon content, etc.) ③ Demolition phase LNG cold energy utilization projects need to be dismantled at the end of their life cycle. The dismantling process also generates carbon emissions. The carbon emissions of the dismantling process can be assessed by measuring energy consumption and analyzing waste disposal. Calculations should be performed. For example, in cold energy projects where materials are not recycled during demolition, only the carbon emissions from the demolition process itself need to be considered when calculating carbon emissions for that stage. Specifically, the carbon emissions from the construction phase can be used as a base, multiplied by a corresponding ratio. The calculation is performed using the following formula: (15) The carbon emission reduction benefits of LNG cold energy utilization projects need to be determined based on whether the investment entity, energy supplier, and energy user of the LNG cold energy utilization project are the same entity.

[0074] 5.1.3) Conduct energy substitution analysis on the LNG cold energy utilization project, generate data on the cost reduction brought about by replacing external energy purchases with internal energy supply, and establish an energy synergy optimization model (this model optimizes the application of energy substitution): (16) in, The result of the energy substitution effect analysis is the amount of cost savings from energy substitution. Index for energy type; External purchase unit price (RMB / unit); Internal supply cost per unit (RMB / unit); The actual substitution quantity and the external purchase unit price. and internal supply cost per unit price The actual substitution volume is provided by the analysis from the perspectives of cost composition and benefit type. Determined based on the results of operational performance analysis.

[0075] 5.2) Using the established infrastructure sharing optimization model, carbon trading impact analysis model, and energy synergy optimization model, based on the multi-dimensional technical scheme evaluation results of the feasible technical schemes of the LNG cold energy utilization project to be evaluated, the optimization point analysis of the feasible technical schemes of the LNG cold energy utilization project to be evaluated is carried out, and the system synergy optimization analysis results, carbon emission reduction efficiency analysis results, and energy substitution effect analysis results of the feasible technical schemes of the LNG cold energy utilization project to be evaluated are determined.

[0076] 5.3) Combine the system collaborative optimization analysis results, carbon emission reduction efficiency analysis results, and energy substitution effect analysis results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated with the conventional technical solution evaluation model to obtain the multi-module combined evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, which serve as the evaluation results of the prefabricated technical solutions of the LNG cold energy utilization project under the multi-module model.

[0077] Specifically, the multi-module combined evaluation result is determined using a multi-module combined calculation algorithm. The specific steps are as follows: 5.3.1) Establish a dynamic weight allocation model : (17) in, For module sensitivity; for Importance coefficients for corresponding modules; for The sensitivity of the module; It is a circular index, and: (18) 5.3.2) Determine the optimization points involved in the feasible technical solutions of the LNG cold energy utilization project to be evaluated, and based on the constructed infrastructure sharing optimization model, carbon trading impact analysis model and energy synergy optimization model, determine the system synergy optimization analysis results, carbon emission reduction efficiency analysis results and / or energy substitution effect analysis results of the technical solutions of the LNG cold energy utilization project.

[0078] 5.3.3) Using the constructed conventional technical solution evaluation model, the feasible technical solutions of the LNG cold energy utilization project to be evaluated are evaluated in a conventional manner, and the evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated are obtained.

[0079] 5.3.4) Based on the system synergistic optimization analysis results, carbon emission reduction efficiency analysis results, and / or energy substitution effect analysis results of the feasible technical solutions for the LNG cold energy utilization project to be evaluated, the evaluation results of the conventional technical solutions for the feasible technical solutions of the LNG cold energy utilization project to be evaluated are revised, thereby obtaining the evaluation results of the prefabricated technical solutions for the feasible technical solutions of the LNG cold energy utilization project to be evaluated: I) Based on the established dynamic weight allocation model The weights of various optimization points involved in the feasible technical solutions for the LNG cold energy utilization project to be evaluated are determined.

[0080] II) Multiply the weights of various optimization points involved in the feasible technical solutions of the LNG cold energy utilization project to be evaluated by the analysis results of the corresponding optimization points, and then incorporate them into the equipment configuration and operation performance items in the conventional technical solution evaluation model. Update and correct the equipment configuration analysis results and operation performance analysis results in the conventional technical solution evaluation results, and then obtain the final prefabricated technical solution evaluation results of the LNG cold energy utilization project under the multi-module model.

[0081] Specifically, the evaluation results of the prefabricated technical solution for the multi-module LNG cold energy utilization project. for:

[0082] in, The evaluation results are for conventional technical solutions. The analysis results are for each optimization point.

[0083] 6) Based on the evaluation results of the prefabricated technical solutions of the feasible technical solutions for the LNG cold energy utilization project to be evaluated, determine the technical solutions and corresponding system configurations of the LNG cold energy utilization project to be evaluated, specifically as follows: 6.1) Based on the evaluation results of the feasible technical solutions and corresponding prefabricated technical solutions for the LNG cold energy utilization project to be evaluated, analyze the system energy efficiency. Equipment compatibility Operational stability indicators Key indicators such as internal rate of return (IRR).

[0084] Specifically, economic indicators such as the internal rate of return (IRR) are calculated based on data (such as annual net cash flow) provided by the cost composition and revenue type analysis results in the evaluation of prefabricated technology solutions. The IRR calculation formula is common in the industry, and the specific process will not be elaborated here.

[0085] 6.2) Based on the calculated core indicators and the decision-making indicator requirements stipulated in the enterprise or industry benchmark indicator library, select all feasible technical solutions for the LNG cold energy utilization project to be evaluated, and determine the final technical solution and corresponding system configuration of the LNG cold energy utilization project to be evaluated: 6.2.1) An automatic verification algorithm is used to intelligently match the core indicators of the feasible technical solutions of the LNG cold energy utilization project to be evaluated with the decision-making indicator requirements specified in the enterprise or industry benchmark indicator library.

[0086] Specifically, the decision-making indicators include: Performance indicators: System energy efficiency ≥ 50% (assuming baseline value); Reliability metrics: Operational stability ≥ 95% (assuming baseline value) Profitability indicator: Internal rate of return on total investment of the project ≥ 6% (assumed benchmark value).

[0087] 6.2.2) If the core indicators of the feasible technical solution of the LNG cold energy utilization project to be evaluated meet all decision indicator requirements, a green pass mark is generated, and the feasible technical solution and its corresponding system configuration are directly output as the final technical solution and its corresponding system configuration of the LNG cold energy utilization project to be evaluated.

[0088] Specifically, the system configuration includes the process system composition, auxiliary and utilities composition, equipment list and specifications, main pipelines and instrument valves, and the main operating parameters of the system under rated operating conditions (such as temperature, pressure, and flow rate).

[0089] 6.2.3) If the core indicators of the feasible technical solution for the LNG cold energy utilization project to be evaluated do not meet all decision indicator requirements, then sensitivity decision feedback is performed on key parameters such as equipment parameters, operating load, and energy efficiency that are directly affected by the system configuration of the feasible technical solution. The feasible technical solution is iteratively optimized to generate the optimized technical solution and its corresponding system configuration, and then proceeds to step 1). 6.2.3.1) Using a full-element comparison, extract high-impact factor indicators such as the number of equipment, pipeline length, cold energy conversion efficiency, product output and raw material price in historical LNG cold energy utilization projects, trace the source of key parameters, and generate a special comparison result table composed of multi-dimensional parameters.

[0090] 6.2.3.2) Based on the multi-dimensional parameters, construct a special comparison result table, iteratively optimize the feasible technical solutions of the LNG cold energy utilization project to be evaluated, generate the optimized technical solutions and their corresponding system configurations, and proceed to step 1) to recalculate.

[0091] Specifically, when the cost of a certain specialty (such as pipeline) is significantly higher than that of other similar projects by 20% as indicated in the special comparison results table composed of multi-dimensional parameters, that specialty will be analyzed as the key optimization target to help quickly find directions for optimization and avoid analyzing tens of thousands of data points one by one.

[0092] Specifically, the iterative optimization of the technical solution includes: Technical solution adjustment: Considering technical feasibility, an adjustment plan with a high impact factor is set.

[0093] For example, if high-impact factors are the main factors affecting pipeline costs, such as a large-diameter pipeline project with a length of 2000m, and this project's cost accounts for 30% of the overall pipeline cost, then it is necessary to focus on whether the project length can be optimized and whether there is a better pipeline layout scheme to reduce the corresponding project length, thereby optimizing the pipeline system configuration and investment.

[0094] System configuration optimization: Considering downstream demand and project operation, select and set equipment configuration and operation strategies under different technical solutions such as cold energy utilization, energy conversion, energy substitution and carbon emission reduction.

[0095] Multi-scenario simulation: Combine and match technical solutions with multiple system configuration options, run multiple sets of parameters in batches, establish a multi-dimensional sensitivity analysis matrix, and visualize the evaluation results under different scenarios.

[0096] 6.2.4) When the optimized technical solution brings the core indicators back to the baseline value, it triggers the matching verification of similar-scale cases in the project library and outputs a technical solution package with parameter constraints, including the preferred system configuration scheme, equipment capacity limit, construction investment limit, minimum product output, maximum raw material price, etc.

[0097] Specifically, the matching and verification of similar-sized cases in the project database includes verifying the project system's energy efficiency data and financial internal rate of return. These two data are key to investment decisions. The verification result is that the project system's energy efficiency data and internal rate of return meet the benchmark.

[0098] Example 2 This embodiment provides an evaluation system for prefabricated technical solutions in LNG cold energy utilization projects, including: The feasible technical solution determination module is used to drive the conventional technical solution evaluation model to calculate each technical solution of the LNG cold energy utilization project to be evaluated using technical solution evaluation methods, and select the feasible technical solutions of the LNG cold energy utilization project to be evaluated that meet the requirements of the project design stage. The multi-dimensional technical solution evaluation result generation module is used to evaluate various combinations of feasible technical solutions for the LNG cold energy utilization project to be evaluated using a conventional technical solution evaluation model, and generate multi-dimensional technical solution evaluation results for the feasible technical solutions of the LNG cold energy utilization project to be evaluated. The single-module evaluation module is used to evaluate the conventional technical solution of the LNG cold energy utilization project under the single-module model when the feasible technical solution of the LNG cold energy utilization project to be evaluated is a single module. The multi-module combination evaluation module is used when the feasible technical solutions of the LNG cold energy utilization project to be evaluated are multi-module. It adopts infrastructure sharing optimization model, carbon trading impact analysis model, energy synergy optimization model and conventional technical solution evaluation model. Based on the multi-dimensional technical solution evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, it generates the multi-module combination evaluation results of the feasible technical solutions of the LNG cold energy utilization project to be evaluated, which serves as the prefabricated technical solution evaluation result of the technical solutions of the LNG cold energy utilization project under multi-module. The technical solution determination module is used to determine the technical solution and its corresponding system configuration for the LNG cold energy utilization project to be evaluated, based on the evaluation results of the prefabricated technical solution of the feasible technical solution of the LNG cold energy utilization project to be evaluated.

[0099] The system provided in this embodiment is used to execute the above-described method embodiments. For specific processes and details, please refer to the above embodiments, which will not be repeated here.

[0100] Example 3 This embodiment provides a processing device corresponding to the evaluation method of the prefabricated technical solution for LNG cold energy utilization projects provided in Embodiment 1. The processing device can be applied to the processing devices of the client, such as mobile phones, laptops, tablets, desktop computers, etc., to execute the method of Embodiment 1.

[0101] 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 enable communication between them. The memory stores a computer program that can run on the processing device. When the processing device runs the computer program, it executes the evaluation method for the prefabricated technical solution of the LNG cold energy utilization project provided in Embodiment 1.

[0102] In some implementations, the memory may be high-speed random access memory (RAM), and may also include non-volatile memory, such as at least one disk storage device.

[0103] In other implementations, the processor can be any type of general-purpose processor, such as a central processing unit (CPU) or a digital signal processor (DSP), and there is no limitation here.

[0104] Furthermore, the logical instructions in the aforementioned memory can be implemented as software functional units and sold or used as independent products, and can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0105] Those skilled in the art will understand that the structure of the above-described computing device is only a partial structure related to the present invention and does not constitute a limitation on the computing device to which the present invention is applied. A specific computing device may include more or fewer components, or combine certain components, or have different component arrangements.

[0106] Example 4 This embodiment provides a computer program product corresponding to the evaluation method for the prefabricated technical solution of the LNG cold energy utilization project provided in Embodiment 1. The computer program product may include a computer-readable storage medium on which computer-readable program instructions for executing the evaluation method for the prefabricated technical solution of the LNG cold energy utilization project described in Embodiment 1 are loaded.

[0107] A computer-readable storage medium can be a tangible device that holds and stores instructions for use by an instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any combination thereof.

[0108] The computer-readable storage medium provided in the above embodiments has a similar implementation principle and technical effect to the above method embodiments, and will not be described again here.

[0109] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations 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, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0110] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0111] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0112] The above embodiments are only used to illustrate the present invention. The structure, connection method and manufacturing process of each component can be varied. All equivalent transformations and improvements made on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. An LNG cold energy utilization project assembly type technical scheme evaluation method, characterized in that, The application relates to a technical scheme evaluation method for LNG cold energy utilization projects. The method comprises the following steps: When the feasible technical scheme of the LNG cold energy utilization project is a single module, the conventional technical scheme evaluation result of the feasible technical scheme of the LNG cold energy utilization project is taken as the assembled technical scheme evaluation result of the technical scheme of the LNG cold energy utilization project under the single module; When the feasible technical scheme of the LNG cold energy utilization project is a multi-module, a multi-module combination evaluation result of the feasible technical scheme of the LNG cold energy utilization project is generated based on the multi-dimensional technical scheme evaluation result of the feasible technical scheme of the LNG cold energy utilization project by using an infrastructure sharing optimization model, a carbon transaction influence analysis model, an energy coordination optimization model and a conventional technical scheme evaluation model, and the multi-module combination evaluation result is taken as the assembled technical scheme evaluation result of the technical scheme of the LNG cold energy utilization project under the multi-module; Based on the assembled technical scheme evaluation result of the feasible technical scheme of the LNG cold energy utilization project, the technical scheme of the LNG cold energy utilization project and the corresponding system configuration are determined. The method comprises the following steps:

2. The LNG cold energy utilization project packaged technical scheme evaluation method of claim 1, wherein, Based on the actual construction and operation conditions of the LNG cold energy utilization project, a conventional technical scheme evaluation model is constructed to determine the conventional technical scheme evaluation result of each technical scheme of the LNG cold energy utilization project; The conventional technical scheme evaluation model comprises the following modules: A system energy flow analysis module is used to analyze the potential system configuration mode of the LNG cold energy utilization project, to determine the energy input and output ends and the equipment configuration, and to generate a system energy flow analysis result; 3. The LNG cold energy utilization project packaged technical solution evaluation method of claim 2, wherein An equipment configuration analysis module is used to calculate the overall equipment matching degree index according to the equipment configuration data of the LNG cold energy utilization project, and to generate an equipment configuration analysis result; An operation performance analysis module is used to generate an operation performance analysis result according to the operation parameter data of the LNG cold energy utilization project; A cost and benefit analysis module is used to generate a cost composition angle and a benefit type angle analysis result according to the cost data and the income data of the LNG cold energy utilization project. ​ ​ 4. The LNG cold energy utilization project packaged technical scheme evaluation method of claim 1, wherein, The multi-dimensional technical solution evaluation result includes system energy flow analysis results, equipment configuration analysis results, operation performance analysis results, and cost composition angle and benefit type angle analysis results of various combinations of the feasible technical solutions of the LNG cold energy utilization project.

5. The LNG cold energy utilization project packaged technical scheme evaluation method of claim 1, wherein, When the feasible technical solution of the LNG cold energy utilization project to be evaluated is a multi-module, the infrastructure sharing optimization model, the carbon trading impact analysis model, the energy synergy optimization model, and the conventional technical solution evaluation model are used to generate multi-module combination evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated based on the multi-dimensional technical solution evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated, as the assembled technical solution evaluation results of the technical solution of the LNG cold energy utilization project under the multi-module, including: The infrastructure sharing optimization model, the carbon trading impact analysis model, and the energy synergy optimization model are used to perform optimization point analysis on the feasible technical solution of the LNG cold energy utilization project to be evaluated based on the multi-dimensional technical solution evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated, to determine system synergy optimization analysis results, carbon emission reduction efficiency analysis results, and energy replacement effect analysis results of the feasible technical solution of the LNG cold energy utilization project to be evaluated; The system synergy optimization analysis results, the carbon emission reduction efficiency analysis results, and the energy replacement effect analysis results of the feasible technical solution of the LNG cold energy utilization project to be evaluated are combined with the conventional technical solution evaluation model for combined analysis to obtain multi-module combination evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated, as the assembled technical solution evaluation results of the technical solution of the LNG cold energy utilization project under the multi-module.

6. The LNG cold energy utilization project packaged technical scheme evaluation method of claim 1, wherein The infrastructure sharing optimization model is: wherein, is the infrastructure sharing investment saving amount, i.e., the system synergy optimization analysis result; is the infrastructure type index; is the facility reuse efficiency coefficient; is the shared facility modification cost; is the facility sharing utilization rate; The carbon trading benefit increment model is: Wherein, is the carbon trading revenue increment, i.e. the carbon emission reduction performance analysis result; is the carbon emission reduction amount for replacing traditional energy; is the carbon emission amount of the project itself; is the carbon quota trading price; is the monitoring report certification cost proportion; is the discount factor; The energy synergy optimization model is: Wherein, is the energy substitution cost saving amount, i.e., the energy substitution effect analysis result; is the energy type index; is the external purchase unit price; is the internal supply cost unit price; is the actual substitution amount.

7. The LNG cold energy utilization project packaged technical scheme evaluation method of claim 1, wherein, Based on the assembled technical solution evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated, the technical solution of the LNG cold energy utilization project to be evaluated and the corresponding system configuration are determined, including: Based on the assembled technical solution evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated, the core indicators are analyzed; Based on the calculated core indicators and the decision-making indicator requirements specified in the enterprise or industry benchmark index library, all feasible technical solutions of the LNG cold energy utilization project to be evaluated are selected to determine the final technical solution of the LNG cold energy utilization project to be evaluated and the corresponding system configuration.

8. An LNG cold energy utilization project assembly type technical scheme evaluation system, characterized in that, Including: The feasible technical solution determination module is configured to use the technical solution evaluation method to drive the conventional technical solution evaluation model to calculate each technical solution of the LNG cold energy utilization project to be evaluated, and select the feasible technical solution of the LNG cold energy utilization project to be evaluated that meets the requirements of the project design stage; The multi-dimensional technical solution evaluation result generation module is configured to use the conventional technical solution evaluation model to evaluate various combinations of the feasible technical solution of the LNG cold energy utilization project to be evaluated, and generate multi-dimensional technical solution evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated; and The multi-module combination evaluation result generation module is configured to use the infrastructure sharing optimization model, the carbon trading impact analysis model, and the energy synergy optimization model to perform optimization point analysis on the feasible technical solution of the LNG cold energy utilization project to be evaluated based on the multi-dimensional technical solution evaluation results of the feasible technical solution of the LNG cold energy utilization project to be evaluated, to determine system synergy optimization analysis results, carbon emission reduction efficiency analysis results, and energy replacement effect analysis results of the feasible technical solution of the LNG cold energy utilization project to be evaluated. The single-module evaluation module is configured to, when the feasible technical scheme of the LNG cold energy utilization project to be evaluated is a single module, take a conventional technical scheme evaluation result of the feasible technical scheme of the LNG cold energy utilization project to be evaluated as an assembled technical scheme evaluation result of the technical scheme of the LNG cold energy utilization project under the single module; The multi-module combination evaluation module is configured to, when the feasible technical scheme of the LNG cold energy utilization project to be evaluated is a multi module, adopt an infrastructure sharing optimization model, a carbon transaction influence analysis model, an energy coordination optimization model and a conventional technical scheme evaluation model, generate a multi-module combination evaluation result of the feasible technical scheme of the LNG cold energy utilization project to be evaluated based on a multi-dimensional technical scheme evaluation result of the feasible technical scheme of the LNG cold energy utilization project to be evaluated, and take the multi-module combination evaluation result as an assembled technical scheme evaluation result of the technical scheme of the LNG cold energy utilization project under the multi module; The technical scheme determination module is configured to determine a technical scheme of the LNG cold energy utilization project to be evaluated and a corresponding system configuration of the LNG cold energy utilization project to be evaluated based on the assembled technical scheme evaluation result of the feasible technical scheme of the LNG cold energy utilization project to be evaluated.

9. A processing device, characterized by The computer program instructions are executed by a processing device to implement steps corresponding to the LNG cold energy utilization project assembled technical scheme evaluation method in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer program instructions are stored on the computer readable storage medium and are executed by a processor to implement steps corresponding to the LNG cold energy utilization project assembled technical scheme evaluation method in any one of claims 1-7.

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