Energy efficiency optimization method and device for natural gas purification treatment system

Abstract

The invention relates to an energy efficiency optimization method and device for a natural gas purification treatment system. The method comprises the steps of obtaining power data and natural gas data of the natural gas purification treatment system; calculating unit natural gas handling capacity energy consumption, unit product gas fuel gas consumption, unit product sulfur power consumption and unit acid gas handling capacity comprehensive energy consumption according to the electric power data and the natural gas data; determining the energy efficiency levels of the desulfurization unit, the dehydration unit, the sulfur recovery unit and the tail gas treatment unit according to the unit natural gas treatment capacity energy consumption, the unit product gas fuel gas consumption, the unit product sulfur power consumption and the unit acid gas treatment capacity comprehensive energy consumption; and adjusting the production operation parameters of the desulfurization unit, the dehydration unit, the sulfur recovery unit or the tail gas treatment unit of which the energy efficiency grade does not meet the preset energy efficiency grade requirement. Unified scheduling and centralized management of energy resources are achieved, so that the energy utilization efficiency is improved, the comprehensive energy efficiency level is improved, and finally the efficiency of a gas field production system is improved.

Description

Technical Field

[0001] This specification relates to the field of energy management and control technology, and in particular to an energy efficiency optimization method and device for a natural gas purification and processing system. Background Art

[0002] Energy management and control is a full-process energy management model. It uses automation and information technology to implement dynamic monitoring and effective management of energy utilization through energy metering and online monitoring, and uses benchmarking analysis and system optimization methods for processes such as energy production, distribution and consumption. It promotes the optimization of energy utilization and the maximization of economic benefits, thereby improving the scientific management level of enterprise energy.

[0003] The gas field production system consists of a gas production system, a gathering and transportation system, a purification and treatment system, and a gas field water reinjection system. The purification and treatment system consumes the most energy, accounting for approximately 35% of total energy consumption. It also features a long process flow, numerous process links, complex relationships between process parts, and a wide variety of hardware equipment involved. The energy efficiency of the natural gas purification and treatment system will directly affect the efficiency of the gas field production system. Therefore, optimizing the energy efficiency of the natural gas purification and treatment system is an urgent issue that needs to be addressed. Summary of the Invention

[0004] To solve the problems existing in the prior art, the embodiments of this specification provide an energy efficiency optimization method and device for a natural gas purification and processing system, which realizes the unified scheduling and centralized management of energy resources, thereby improving energy utilization efficiency, enhancing the overall energy efficiency level, and ultimately improving the efficiency of the gas field production system.

[0005] In order to solve any of the above technical problems, the specific technical solutions of this specification are as follows:

[0006] The embodiments of this specification provide a method for optimizing energy efficiency of a natural gas purification system, wherein the natural gas purification system includes a desulfurization unit, a dehydration unit, a sulfur recovery unit, and a tail gas treatment unit. The method includes:

[0007] Acquiring power data and natural gas data of the natural gas purification system;

[0008] Calculate the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume based on the electricity data and natural gas data;

[0009] Determining the energy efficiency ratings of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume;

[0010] The production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements are adjusted, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements to perform natural gas purification according to the adjusted production and operation parameters.

[0011] Furthermore, the power data includes the power consumption of the desulfurization unit, the dehydration unit, the sulfur recovery unit and the tail gas treatment unit;

[0012] The natural gas data includes the gas consumption of the dehydration unit and the tail gas treatment unit.

[0013] Furthermore, the formula for calculating the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume based on the electricity data and natural gas data is:

[0014] Energy consumption per unit of natural gas processing volume = (total power consumption × electricity energy conversion coefficient + total gas consumption × gas energy conversion coefficient) / natural gas processing volume; wherein the total power consumption is the sum of the power consumption of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit;

[0015] Fuel gas consumption per unit of product gas = gas consumption of dehydration unit / product natural gas volume;

[0016] Power consumption per unit of sulfur product = power consumption per unit of sulfur desulfurization unit + power consumption per unit of sulfur recovery unit; where power consumption per unit of sulfur desulfurization unit = power consumption per unit of desulfurization unit / sulfur output; power consumption per unit of sulfur recovery unit = power consumption per unit of sulfur recovery unit / sulfur output;

[0017] Comprehensive energy consumption per unit acid gas treatment volume = (electricity consumption of tail gas treatment unit × electricity energy conversion coefficient + gas consumption of tail gas treatment unit × gas energy conversion coefficient) / acid gas treatment volume.

[0018] Furthermore, determining the energy efficiency levels of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume further includes:

[0019] determining the energy efficiency level of the desulfurization unit according to the energy consumption per unit natural gas processing volume and the predetermined energy consumption thresholds corresponding to the energy efficiency levels of the desulfurization unit;

[0020] determining the energy efficiency level of the dehydration unit according to the fuel gas consumption per unit product gas and predetermined gas consumption thresholds corresponding to the energy efficiency levels of the dehydration units;

[0021] determining the energy efficiency level of the sulfur recovery unit according to the power consumption per unit product sulfur and predetermined power consumption thresholds corresponding to the energy efficiency levels of the sulfur recovery unit;

[0022] The energy efficiency level of the tail gas treatment unit is determined by determining the comprehensive energy consumption threshold corresponding to each energy efficiency level of the tail gas treatment unit according to the comprehensive energy consumption per unit acid gas treatment volume.

[0023] Furthermore, adjusting the production operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement further includes:

[0024] The desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement is regarded as a unit to be adjusted;

[0025] The desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level meets the predetermined energy efficiency level requirement is used as a benchmark unit;

[0026] The production and operation parameters of the corresponding unit to be adjusted are adjusted according to the production and operation parameters of the reference unit.

[0027] Furthermore, adjusting the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement also includes:

[0028] Calculating theoretical production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements based on a pre-established theoretical production and operation parameter model;

[0029] The production operation parameters are adjusted using the theoretical production operation parameters.

[0030] Furthermore, adjusting the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement also includes:

[0031] Inputting the target energy efficiency corresponding to the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement into a pre-trained neural network model for calculation to obtain predicted production and operation parameters corresponding to the target energy efficiency, and the neural network model is used to predict the production and operation parameters corresponding to the specified energy efficiency;

[0032] The predicted production operation parameters are used to adjust the production operation parameters.

[0033] Furthermore, the natural gas purification and processing system includes multiple groups of processing devices, each group of processing devices includes a desulfurization unit, a dehydration unit, a sulfur recovery unit and a tail gas treatment unit;

[0034] The method further comprises:

[0035] Calculate the proportion of each group of treatment devices that meet the energy efficiency rating standards;

[0036] One or more of the processing devices ranked at the bottom in terms of the energy efficiency level compliance ratio are selected as processing devices to be optimized;

[0037] The operating parameters of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit in the treatment device to be optimized are adjusted.

[0038] On the other hand, the embodiments of this specification also provide an energy efficiency optimization device for a natural gas purification system, wherein the natural gas purification system includes a desulfurization unit, a dehydration unit, a sulfur recovery unit, and a tail gas treatment unit, and the device includes:

[0039] A data acquisition module, configured to acquire power data and natural gas data of the natural gas purification system;

[0040] An energy consumption calculation module, for calculating the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume based on the electricity data and natural gas data;

[0041] An energy efficiency rating determination module, configured to determine the energy efficiency ratings of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume;

[0042] The production operation parameter adjustment module is used to adjust the production operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements to perform natural gas purification treatment according to the adjusted production operation parameters.

[0043] On the other hand, an embodiment of this specification further provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above method when executing the computer program.

[0044] By using the embodiments of this specification, it is possible to evaluate the energy efficiency levels of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit in the natural gas purification system based on the power data and natural gas data of the natural gas purification system, and based on the energy efficiency level evaluation results, adjust the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit that does not meet the energy efficiency level requirements, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit that does not meet the energy efficiency level requirements to purify the natural gas according to the adjusted production and operation parameters, so as to achieve precise control of the energy consumption of the natural gas purification plant, thereby improving the comprehensive energy efficiency level of the natural gas purification plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 FIG2 is a schematic diagram of an implementation system of an energy efficiency optimization method for a natural gas purification system in an embodiment of this specification;

[0047] Figure 2 The figure shows a flow chart of an energy efficiency optimization method for a natural gas purification system in an embodiment of this specification;

[0048] Figure 3 The figure shows a flow chart of determining the energy efficiency level of each unit in the embodiment of this specification;

[0049] Figure 4 Shown is a schematic diagram of energy consumption thresholds corresponding to various energy efficiency levels of the desulfurization unit in the embodiment of this specification;

[0050] Figure 5 Shown is a schematic diagram of energy consumption thresholds corresponding to various energy efficiency levels of the dehydration unit in the embodiment of this specification;

[0051] Figure 6 It is a flow chart showing the process of adjusting the production and operation parameters of a unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements by using the benchmarking method in the embodiment of this specification;

[0052] Figure 7 The figure shows a flow chart of adjusting the production and operation parameters of a unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements by using a theoretical deduction method in an embodiment of this specification;

[0053] Figure 8The figure shows a flow chart of adjusting the production operation parameters of a unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements by using a neural network method in an embodiment of this specification;

[0054] Figure 9 The figure shows a flow chart of adjusting the production and operation parameters of each processing device in the natural gas purification system according to the embodiment of this specification;

[0055] Figure 10 The figure shows a schematic structural diagram of an energy efficiency optimization device for a natural gas purification system according to an embodiment of the present specification;

[0056] Figure 11 The figure shows a schematic diagram of the structure of a computer device in an embodiment of this specification.

[0057]

Description of the accompanying drawings

[0058] 101. Terminal;

[0059] 102. Server;

[0060] 1001. Data acquisition module;

[0061] 1002. Energy consumption calculation module;

[0062] 1003. Energy efficiency level determination module;

[0063] 1004. Production operation parameter adjustment module;

[0064] 1102. Computer equipment;

[0065] 1104. Processing equipment;

[0066] 1106. Storage resources;

[0067] 1108, driving mechanism;

[0068] 1110, input / output module;

[0069] 1112. Input device;

[0070] 1114. Output device;

[0071] 1116. Presentation equipment;

[0072] 1118. Graphical User Interface;

[0073] 1120, network interface;

[0074] 1122, communication link;

[0075] 1124. Communication bus. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of this specification to clearly and completely describe the technical solutions in the embodiments of this specification. Obviously, the embodiments described are only part of the embodiments of this specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this specification.

[0077] It should be noted that the terms "first," "second," and the like in the description and claims of this specification and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of this specification described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product, or device comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices.

[0078] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0079] It should be noted that the acquisition, storage, use, and processing of data in the technical solution of this application comply with the relevant provisions of relevant laws and regulations.

[0080] like Figure 1 The diagram shows a system diagram for implementing a method for optimizing energy efficiency of a natural gas purification system according to an embodiment of the present disclosure, including a terminal 101 and a server 102. Terminal 101 and server 102 can communicate with each other via a network, which can include a local area network (LAN), a wide area network (WAN), the Internet, or a combination thereof, and is connected to a website, user devices (e.g., computing devices), and back-end systems.

[0081] The user first inputs the power data and natural gas data of the natural gas purification plant into the server 102 through the terminal 101. The server 102 evaluates the energy efficiency level of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit of the natural gas purification plant based on the power data and natural gas data, identifies the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements, and calculates the adjusted production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements, and provides the adjusted production and operation parameters to the user through the terminal 101, so that the user can control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements to perform natural gas purification according to the adjusted production and operation parameters.

[0082] Alternatively, the server 102 may be a node of a cloud computing system (not shown), or each server may be a separate cloud computing system including multiple computers interconnected by a network and operating as a distributed processing system.

[0083] In addition, it should be noted that Figure 1 What is shown is only an application environment provided by the embodiment of this specification. In actual application, the server 102 can also be the control system of a natural gas purification plant, and the terminal 101 can be a sensor for collecting power data and natural gas data. This specification does not impose any restrictions.

[0084] In order to solve the problems existing in the prior art, the embodiments of this specification provide an energy efficiency optimization method for a natural gas purification and processing system, which realizes the unified scheduling and centralized management of energy resources, thereby improving energy utilization efficiency, enhancing the overall energy efficiency level, and ultimately improving the efficiency of the gas field production system. Figure 2 Shown is a flow chart of a method for optimizing the energy efficiency of a natural gas purification system according to an embodiment of this specification. This figure describes the process of optimizing the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit in the natural gas purification system, but it may include more or fewer operating steps based on conventional or non-creative work. The order of steps listed in the embodiment is only one way of executing the steps among many, and does not represent the only execution order. When the system or device product is actually executed, it can be executed in sequence or in parallel according to the method shown in the embodiment or the accompanying drawings. Specifically, Figure 2 As shown, the method may be performed by the server 102, and may include:

[0085] Step 201: Acquire power data and natural gas data of the natural gas purification system;

[0086] Step 202: Calculate the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume based on the power data and natural gas data;

[0087] Step 203: determining the energy efficiency levels of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume;

[0088] Step 204: Adjust the production operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements to perform natural gas purification according to the adjusted production operation parameters.

[0089] By using the embodiments of this specification, it is possible to evaluate the energy efficiency levels of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit in the natural gas purification system based on the power data and natural gas data of the natural gas purification system, and based on the energy efficiency level evaluation results, adjust the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit that does not meet the energy efficiency level requirements, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit that does not meet the energy efficiency level requirements to purify the natural gas according to the adjusted production and operation parameters, so as to achieve precise control of the energy consumption of the natural gas purification plant, thereby improving the comprehensive energy efficiency level of the natural gas purification plant.

[0090] In the embodiments of this specification, the production operation parameters include but are not limited to liquid level, temperature, pressure, and flow. The embodiments of this specification can remotely control the production operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit.

[0091] In the embodiments of this specification, each of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit of the natural gas purification system may include multiple devices, and the power data includes the power consumption of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit; the natural gas data includes the gas consumption of the dehydration unit and the tail gas treatment unit.

[0092] The electricity consumption of various equipment types is generated by summarizing the electricity consumption data of each electricity consumption point. The desulfurization unit electricity consumption data is collected from the electricity meter data of the lean amine liquid circulation pump, regeneration tower top reflux pump, lean liquid air cooler, acid gas air cooler, and other electrical equipment; the dehydration unit electricity consumption data is collected from the electricity meter data of the circulation pump; the sulfur recovery unit electricity consumption data is collected from the electricity meter data of the recovery fan, liquid sulfur degassing fan, and other electrical equipment; the tail gas treatment unit electricity consumption data is collected from the electricity meter data of the online furnace fan, tail gas incinerator fan, tail gas fan, quench water air cooler, lean liquid air cooler, acid gas air cooler, quench water pump, rich liquid pump, lean liquid pump, regeneration tower top reflux pump, and other electrical equipment.

[0093] Gas consumption for each type of equipment is generated by summarizing gas consumption data from each unit's pipelines and from each point of use. Dehydration unit gas consumption data is collected from gas meters for equipment such as the regeneration tower reboiler and lean liquid distillation column; sulfur recovery unit gas consumption data is collected from gas meters for equipment such as the primary, secondary, and tertiary reheat furnaces; and exhaust gas treatment unit gas consumption data is collected from gas meters for equipment such as the online combustion furnace and exhaust gas incinerator.

[0094] In addition, water usage data for various equipment can also be monitored. The water consumption of each unit is generated by summarizing the water consumption data of each unit's sub-pipelines, and the water consumption of each type of equipment is generated by summarizing the water consumption data of each water point. The desulfurization unit water consumption data is collected from water meters for water-using equipment such as the lean liquid aftercooler and acid gas aftercooler; the dehydration unit water consumption data is collected from water meters for water-using equipment such as the lean liquid cooler; the sulfur recovery unit water consumption data is collected from water meters for water-using equipment such as the waste heat boiler heat exchanger, primary sulfur condensate cooler, secondary sulfur condensate cooler, and tertiary sulfur condensate cooler; and the tail gas treatment unit water consumption data is collected from water meters for water-using equipment such as the waste heat boiler, quench water aftercooler, lean liquid aftercooler, and incinerator waste heat boiler.

[0095] Production and operation data include natural gas processing volume, product gas volume, sulfur production, liquid level, temperature, pressure, and flow rate. Energy consumption statistics include electricity consumption, gas consumption, and water consumption. Energy performance parameters include comprehensive energy consumption indicators, unit consumption indicators, main unit energy consumption indicators, and energy-consuming equipment indicators.

[0096] In some other embodiments of this specification, the production and operation data, electricity consumption data, gas consumption data, and water consumption data of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit can also be judged in real time, and limit values ​​for the production and operation data, electricity consumption data, gas consumption data, and water consumption data can be established. When the limit values ​​are exceeded, an alarm message is automatically sent. The limit values ​​can be manually set according to the production plan, and the embodiments of this specification do not impose any restrictions. When the system sends an alarm signal for an increase in electricity consumption, gas consumption, or water consumption of a main unit such as desulfurization, dehydration, sulfur recovery, or tail gas treatment, an energy efficiency evaluation and analysis of the main unit is required.

[0097] When performing energy efficiency evaluation and analysis, the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume are calculated based on the electricity data and natural gas data.

[0098] Specifically, the formula for calculating the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume based on the electricity data and natural gas data is:

[0099] Energy consumption per unit of natural gas processing volume = (total power consumption × electricity energy conversion coefficient + total gas consumption × gas energy conversion coefficient) / natural gas processing volume; wherein the total power consumption is the sum of the power consumption of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit;

[0100] Fuel gas consumption per unit of product gas = gas consumption of dehydration unit / product natural gas volume;

[0101] Power consumption per unit of sulfur product = power consumption per unit of sulfur desulfurization unit + power consumption per unit of sulfur recovery unit; where power consumption per unit of sulfur desulfurization unit = power consumption per unit of desulfurization unit / sulfur output; power consumption per unit of sulfur recovery unit = power consumption per unit of sulfur recovery unit / sulfur output;

[0102] Comprehensive energy consumption per unit acid gas treatment volume = (electricity consumption of tail gas treatment unit × electricity energy conversion coefficient + gas consumption of tail gas treatment unit × gas energy conversion coefficient) / acid gas treatment volume.

[0103] In this example, the energy consumption per unit of natural gas processed is used as the energy efficiency evaluation index for the desulfurization unit, the fuel gas consumption per unit of product gas is used as the energy efficiency evaluation index for the dehydration unit, the electricity consumption per unit of product sulfur is used as the energy efficiency evaluation index for the sulfur recovery unit, and the comprehensive energy consumption per unit of acid gas processed is used as the energy efficiency evaluation index for the tail gas treatment unit. This allows the energy efficiency of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit to be evaluated.

[0104] Specifically, if Figure 3 As shown, determining the energy efficiency level of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur and comprehensive energy consumption per unit acid gas processing volume further includes:

[0105] Step 301: determining the energy efficiency level of the desulfurization unit according to the energy consumption per unit natural gas processing volume and predetermined energy consumption thresholds corresponding to the energy efficiency levels of the desulfurization unit;

[0106] Step 302: determining the energy efficiency level of the dehydration unit according to the fuel gas consumption per unit of product gas and predetermined gas consumption thresholds corresponding to the energy efficiency levels of the dehydration unit;

[0107] Step 303: determining the energy efficiency level of the sulfur recovery unit according to the power consumption per unit product sulfur and predetermined power consumption thresholds corresponding to the energy efficiency levels of the sulfur recovery unit;

[0108] Step 304: Determine the energy efficiency level of the tail gas treatment unit by determining the comprehensive energy consumption threshold corresponding to each energy efficiency level of the tail gas treatment unit according to the comprehensive energy consumption per unit acid gas treatment volume.

[0109] In the embodiments of this specification, each unit is set with its own energy consumption threshold corresponding to each energy efficiency level, and the above indicators are compared with the energy consumption threshold of the corresponding unit to determine the energy efficiency level of each unit.

[0110] It should be noted that, in actual implementation, steps 301 to 304 may be executed in parallel or sequentially, and the embodiments of this specification do not limit the execution order of steps 301 to 304.

[0111] For example, the embodiment of this specification divides the energy efficiency level of each unit into a low efficiency zone, a potential zone and a high efficiency zone, such as Figure 4 The figure shows the energy consumption thresholds corresponding to various energy efficiency levels for the desulfurization unit. If the energy consumption per unit of natural gas processed during a specific operating period is above the index line (threshold), the desulfurization unit's energy efficiency level for that period is in the low-efficiency zone. That is, higher energy consumption indicates lower energy efficiency. If the energy consumption per unit of natural gas processed during that period is between the index line and the average line, the desulfurization unit's energy efficiency level for that period is in the potential zone, indicating that the desulfurization unit still has some potential for energy efficiency improvement. If the energy consumption per unit of natural gas processed during that period is below the average line, the desulfurization unit's energy efficiency level for that period is in the high-efficiency zone.

[0112] like Figure 5 The figure shows the energy consumption thresholds corresponding to various energy efficiency levels of the dehydration unit. When the fuel gas consumption per unit of product gas exceeds the index line (threshold) during a certain operating period, the dehydration unit's energy efficiency level during that period is in the low-efficiency zone. That is, the higher the energy consumption, the lower the energy efficiency. If the fuel gas consumption per unit of product gas during that period is between the index line and the average line, the dehydration unit's energy efficiency level during that period is in the potential zone, indicating that the dehydration unit still has some potential for energy efficiency improvement during that period. If the fuel gas consumption per unit of product gas during that period is below the average line, the dehydration unit's energy efficiency level during that period is in the high-efficiency zone.

[0113] In the embodiments of this specification, predetermined energy efficiency level requirements can be set based on actual production needs. For example, if an inefficient zone fails to meet production requirements, the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit in the inefficient zone need to be optimized. If both the inefficient zone and the potential zone fail to meet production requirements, the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit in the inefficient zone and the potential zone need to be optimized.

[0114] In the embodiments of this specification, the benchmarking method, theoretical deduction method or neural network method can be used to adjust the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements.

[0115] like Figure 6 As shown, the steps for adjusting the production and operation parameters of units whose energy efficiency levels do not meet the predetermined energy efficiency level requirements using the benchmarking method include:

[0116] Step 601: The desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement is selected as a unit to be adjusted;

[0117] Step 602: The desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level meets the predetermined energy efficiency level requirement is used as a benchmark unit;

[0118] Step 603: adjusting the production and operation parameters of the corresponding unit to be adjusted according to the production and operation parameters of the reference unit.

[0119] In the embodiment of this specification, the production and operation parameters of the corresponding unit to be adjusted can be adjusted according to the production and operation parameters of the reference unit, so that the production and operation parameters of the unit to be adjusted are brought closer to the production and operation parameters of the reference unit.

[0120] like Figure 7 As shown, the steps of adjusting the production operation parameters of the unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements by using the theoretical deduction method include:

[0121] Step 701: Calculating theoretical production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement based on a pre-established theoretical production and operation parameter model;

[0122] Step 702: Use the theoretical production operation parameters to adjust the production operation parameters.

[0123] In the embodiments of this specification, a mathematical model between the production and operation parameters of each unit and the energy performance parameter can be pre-established, and the production and operation parameters of each unit when the energy consumption is theoretically optimal can be calculated through the mathematical model.

[0124] like Figure 8 As shown, the steps of using the neural network method to adjust the production operation parameters of the unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement include:

[0125] Step 801: Inputting the target energy efficiency corresponding to the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement into a pre-trained neural network model for calculation to obtain predicted production and operation parameters corresponding to the target energy efficiency. The neural network model is used to predict the production and operation parameters corresponding to the specified energy efficiency.

[0126] In this step, the target energy efficiency of the desulfurization unit can be the preferred energy consumption per unit natural gas processing volume, the target energy efficiency of the dehydration unit can be the preferred fuel gas consumption per unit product gas, the target energy efficiency of the sulfur recovery unit can be the preferred electricity consumption per unit product sulfur, and the target energy efficiency of the tail gas treatment unit can be the preferred comprehensive energy consumption per unit acid gas processing volume.

[0127] The neural network model can include the relationship between the target energy efficiency and the production and operation parameters. By inputting the target energy efficiency into the neural network model, the corresponding production and operation parameters can be obtained. Specifically, the neural network model can be a graph neural network model (GNN), etc., and the embodiments of this specification are not limited thereto.

[0128] Step 802: Use the predicted production operation parameters to adjust the production operation parameters.

[0129] According to some other embodiments of this specification, the natural gas purification processing system includes multiple groups of processing devices, each group of processing devices includes a desulfurization unit, a dehydration unit, a sulfur recovery unit and a tail gas treatment unit;

[0130] It can be understood that the natural gas purification system includes multiple groups of processing devices that can purify natural gas in parallel, and each group of processing devices includes a desulfurization unit, a dehydration unit, a sulfur recovery unit and a tail gas treatment unit.

[0131] like Figure 9 As shown, adjusting the production and operation parameters of each processing device in the natural gas purification system may include the following steps:

[0132] Step 901: Calculate the energy efficiency level compliance ratio of each group of processing devices;

[0133] Step 902: One or more processing devices ranked low in terms of energy efficiency compliance ratio are selected as processing devices to be optimized;

[0134] Step 903: Adjust the operating parameters of the desulfurization unit, the dehydration unit, the sulfur recovery unit, and the tail gas treatment unit in the treatment device to be optimized.

[0135] In the embodiments of this specification, the number of units in each group of treatment devices that do not meet the predetermined energy efficiency level requirements can be determined based on the energy efficiency level of each unit calculated in step 203 and the predetermined energy efficiency level requirements in step 204, thereby calculating the energy efficiency level compliance ratio of each group of treatment devices. The treatment devices can then be sorted in descending order based on the energy efficiency level compliance ratio. A predetermined number of treatment devices ranked at the bottom of the sorting are then selected as the treatment devices to be optimized. Finally, the method of step 204 is used to optimize the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit in the treatment device to be optimized.

[0136] It can be understood that, Figure 9 This is the second method for determining whether it is necessary to optimize the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit (the first method for determining whether optimization is necessary in the embodiment of this specification is to perform energy efficiency evaluation and analysis on the main unit when an alarm signal of an increase in electricity consumption, gas consumption, or water consumption is generated in the main unit such as desulfurization, dehydration, sulfur recovery, or tail gas treatment). Figure 9 The method shown takes each group of processing units in the natural gas purification and processing system as the analysis object, and can identify the decline in the overall energy efficiency of the processing units due to the processing process dependencies between the desulfurization units, dehydration units, sulfur recovery units or tail gas treatment units, and optimize the energy efficiency of such processing units as a whole, thereby better reducing the overall processing energy consumption of the natural gas purification and processing system.

[0137] Based on the same inventive concept, the embodiment of this specification also provides an energy efficiency optimization device for a natural gas purification system, wherein the natural gas purification system includes a desulfurization unit, a dehydration unit, a sulfur recovery unit, and a tail gas treatment unit. Figure 10 As shown, the energy efficiency optimization device of the natural gas purification system includes:

[0138] A data acquisition module 1001 is used to acquire power data and natural gas data of the natural gas purification system;

[0139] An energy consumption calculation module 1002 is used to calculate the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume based on the power data and natural gas data;

[0140] An energy efficiency rating determination module 1003 is configured to determine the energy efficiency ratings of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume;

[0141] The production operation parameter adjustment module 1004 is used to adjust the production operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements to perform natural gas purification according to the adjusted production operation parameters.

[0142] The beneficial effects achieved by the above-mentioned device are consistent with the beneficial effects achieved by the above-mentioned method, and will not be described in detail in the embodiments of this specification.

[0143] like Figure 11 The diagram shows a schematic diagram of the structure of a computer device according to an embodiment of this specification. The apparatus described in this specification may be a computer device according to this embodiment, executing the method described above. Computer device 1102 may include one or more processing devices 1104, such as one or more central processing units (CPUs), each of which may implement one or more hardware threads. Computer device 1102 may also include any storage resources 1106 for storing any type of information, such as code, settings, data, etc. For example, and without limitation, storage resources 1106 may include any one or more combinations of the following: any type of RAM, any type of ROM, flash memory devices, hard disks, optical disks, etc. More generally, any storage resource may use any technology to store information. Furthermore, any storage resource may provide volatile or non-volatile retention of information. Furthermore, any storage resource may represent a fixed or removable component of computer device 1102. In one embodiment, when processing device 1104 executes associated instructions stored in any storage resource or combination of storage resources, computer device 1102 may perform any operation of the associated instructions. The computer device 1102 also includes one or more drive mechanisms 1108 for interacting with any storage resources, such as a hard disk drive mechanism, an optical disk drive mechanism, and the like.

[0144] The computer device 1102 may also include an input / output module 1110 (I / O) for receiving various inputs (via input devices 1112) and for providing various outputs (via output devices 1114). A specific output mechanism may include a presentation device 1116 and an associated graphical user interface (GUI) 1118. In other embodiments, the input / output module 1110 (I / O), input devices 1112, and output devices 1114 may not be included, and the computer device 1102 may simply be a computer device in a network. The computer device 1102 may also include one or more network interfaces 1120 for exchanging data with other devices via one or more communication links 1122. One or more communication buses 1124 couple the components described above together.

[0145] The communication link 1122 may be implemented in any manner, for example, via a local area network, a wide area network (e.g., the Internet), a point-to-point connection, etc., or any combination thereof. The communication link 1122 may include any combination of hardwired links, wireless links, routers, gateway functions, name servers, etc., governed by any protocol or combination of protocols.

[0146] The embodiments of this specification also provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program implements the above method when executed by a processor.

[0147] The embodiments of this specification also provide a computer-readable instruction, wherein when a processor executes the instruction, the program therein causes the processor to execute the above method.

[0148] It should be understood that in the various embodiments of this specification, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this specification.

[0149] It should also be understood that in the embodiments of this specification, the term "and / or" is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " in this specification generally indicates that the associated objects are in an "or" relationship.

[0150] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in this specification can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the composition and steps of each example according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this specification.

[0151] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0152] In the several embodiments provided in this specification, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or can be an electrical, mechanical or other form of connection.

[0153] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of this specification.

[0154] In addition, the functional units in the various embodiments of this specification may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0155] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this specification is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of this specification. 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.

[0156] Specific embodiments are used in this specification to illustrate the principles and implementation methods of this specification. The description of the above embodiments is only used to help understand the methods and core ideas of this specification. At the same time, for those skilled in the art, based on the ideas of this specification, there will be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting this specification.

Claims

1. A method for optimizing energy efficiency of a natural gas purification system, characterized in that: The natural gas purification system includes a desulfurization unit, a dehydration unit, a sulfur recovery unit, and a tail gas treatment unit. The method includes: Acquiring power data and natural gas data of the natural gas purification system; Calculate the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume based on the electricity data and natural gas data; Determining the energy efficiency ratings of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume; The production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements are adjusted, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements to perform natural gas purification according to the adjusted production and operation parameters.

2. The method according to claim 1, characterized in that The power data includes the power consumption of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit; The natural gas data includes the gas consumption of the dehydration unit and the tail gas treatment unit.

3. The method according to claim 2, characterized in that Based on the electricity data and natural gas data, the formula for calculating the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume is as follows: Energy consumption per unit of natural gas processing volume = (total power consumption × electricity energy conversion coefficient + total gas consumption × gas energy conversion coefficient) / natural gas processing volume; wherein the total power consumption is the sum of the power consumption of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit; Fuel gas consumption per unit of product gas = dehydration unit gas consumption / product natural gas volume; Power consumption per unit of sulfur product = power consumption per unit of sulfur desulfurization unit + power consumption per unit of sulfur recovery unit; where power consumption per unit of sulfur desulfurization unit = power consumption per unit of desulfurization unit / sulfur output; power consumption per unit of sulfur recovery unit = power consumption per unit of sulfur recovery unit / sulfur output; Comprehensive energy consumption per unit acid gas treatment volume = (electricity consumption of tail gas treatment unit × electricity energy conversion coefficient + gas consumption of tail gas treatment unit × gas energy conversion coefficient) / acid gas treatment volume.

4. The method according to claim 1, wherein Determining the energy efficiency ratings of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume further includes: determining the energy efficiency level of the desulfurization unit according to the energy consumption per unit natural gas processing volume and the predetermined energy consumption thresholds corresponding to the energy efficiency levels of the desulfurization unit; determining the energy efficiency level of the dehydration unit according to the fuel gas consumption per unit product gas and predetermined gas consumption thresholds corresponding to the energy efficiency levels of the dehydration units; determining the energy efficiency level of the sulfur recovery unit according to the power consumption per unit product sulfur and predetermined power consumption thresholds corresponding to the energy efficiency levels of the sulfur recovery unit; The energy efficiency level of the tail gas treatment unit is determined by determining the comprehensive energy consumption threshold corresponding to each energy efficiency level of the tail gas treatment unit according to the comprehensive energy consumption per unit acid gas treatment volume.

5. The method according to claim 1, characterized in that Adjusting the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements further includes: The desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement is regarded as a unit to be adjusted; The desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level meets the predetermined energy efficiency level requirement is used as a benchmark unit; The production and operation parameters of the corresponding unit to be adjusted are adjusted according to the production and operation parameters of the reference unit.

6. The method according to claim 1, characterized in that Adjusting the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements also includes: Calculating theoretical production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit, or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements based on a pre-established theoretical production and operation parameter model; The production operation parameters are adjusted using the theoretical production operation parameters.

7. The method according to claim 1, characterized in that Adjusting the production and operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements also includes: Inputting the target energy efficiency corresponding to the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirement into a pre-trained neural network model for calculation to obtain predicted production and operation parameters corresponding to the target energy efficiency, and the neural network model is used to predict the production and operation parameters corresponding to the specified energy efficiency; The predicted production operation parameters are used to adjust the production operation parameters.

8. The method according to claim 1, characterized in that The natural gas purification and processing system includes multiple groups of processing devices, each group of processing devices includes a desulfurization unit, a dehydration unit, a sulfur recovery unit and a tail gas treatment unit; The method further comprises: Calculate the proportion of each group of treatment devices that meet the energy efficiency rating standards; One or more of the processing devices ranked at the bottom in terms of the energy efficiency level compliance ratio are selected as processing devices to be optimized; The operating parameters of the desulfurization unit, dehydration unit, sulfur recovery unit and tail gas treatment unit in the treatment device to be optimized are adjusted.

9. An energy efficiency optimization device for a natural gas purification system, characterized in that: The natural gas purification system includes a desulfurization unit, a dehydration unit, a sulfur recovery unit and a tail gas treatment unit. The device includes: A data acquisition module, configured to acquire power data and natural gas data of the natural gas purification system; An energy consumption calculation module, for calculating the energy consumption per unit natural gas processing volume, the fuel gas consumption per unit product gas, the electricity consumption per unit product sulfur, and the comprehensive energy consumption per unit acid gas processing volume based on the electricity data and natural gas data; An energy efficiency rating determination module, configured to determine the energy efficiency ratings of the desulfurization unit, dehydration unit, sulfur recovery unit, and tail gas treatment unit based on the energy consumption per unit natural gas processing volume, fuel gas consumption per unit product gas, electricity consumption per unit product sulfur, and comprehensive energy consumption per unit acid gas processing volume; The production operation parameter adjustment module is used to adjust the production operation parameters of the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements, so as to control the desulfurization unit, dehydration unit, sulfur recovery unit or tail gas treatment unit whose energy efficiency level does not meet the predetermined energy efficiency level requirements to perform natural gas purification treatment according to the adjusted production operation parameters.

10. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 8 is implemented.

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