A method and system for optimizing energy consumption of a production plant

Abstract

The application discloses a kind of production workshop production energy consumption optimization method and system, it is related to energy consumption management field, solve the problem that equipment energy consumption condition lacks comprehensive consideration in current production workshop, method is as follows specifically: the energy efficiency level of production equipment in production workshop is analyzed in combination with equipment configuration information, and the energy efficiency level of various production equipment in production workshop is obtained by analysis;The equipment state of production equipment in production workshop is comprehensively evaluated in combination with energy efficiency level, and the equipment maintenance level of production workshop is obtained by comprehensive evaluation;Production equipment in production workshop is maintained based on equipment maintenance level;After production equipment maintenance is completed, the running state of production equipment is analyzed in combination with equipment operation data, and the equipment state of production equipment is obtained by analysis;The energy consumption condition of production equipment is intervened in time in combination with equipment state, and the intelligent processing of production energy consumption in production workshop is realized on the basis of ensuring abnormal exclusion efficiency.

Description

Technical Field

[0001] This invention belongs to the field of production workshops and relates to energy management technology, specifically a method and system for optimizing production energy consumption in production workshops. Background Technology

[0002] The energy consumption of equipment in a production workshop is directly related to production efficiency, cost control, and resource utilization efficiency. Equipment in a production workshop typically includes various mechanical equipment, electronic equipment, lighting equipment, etc. By comprehensively monitoring the energy consumption status of equipment in the production workshop, abnormalities can be detected in a timely manner, equipment operation plans can be optimized, energy utilization efficiency can be improved, and production costs can be reduced. At the same time, by formulating effective energy-saving measures, the goals of reducing energy consumption and improving production efficiency can also be achieved.

[0003] In the current technological context, the energy consumption of equipment in production workshops is usually only statistically analyzed based on the overall electrical energy consumption of the production workshop. In the process of troubleshooting equipment with abnormal energy consumption, there is a lack of comprehensive consideration of factors such as the service life of the production equipment and continuous operation, which adversely affects the efficiency of energy consumption optimization. Therefore, how to achieve intelligent processing of production energy consumption in the production workshop while ensuring the efficiency of anomaly elimination is the current problem.

[0004] Therefore, we propose a method and system for optimizing energy consumption in production workshops. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a method and system for optimizing energy consumption in production workshops.

[0006] The technical problem to be solved by this invention is:

[0007] How to achieve intelligent management of production energy consumption in the production workshop while ensuring efficient anomaly elimination.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A method for optimizing production energy consumption in a production workshop, the specific method is as follows:

[0010] Step S101: Obtain equipment configuration information of the production workshop, and analyze the energy efficiency level of the production equipment in the production workshop in combination with the equipment configuration information to obtain the energy efficiency level of various production equipment in the production workshop.

[0011] Step S102: Combine the energy efficiency level to conduct a comprehensive assessment of the equipment status of the production equipment in the production workshop, and obtain the equipment maintenance level of the production workshop from the comprehensive assessment.

[0012] Step S103: Perform maintenance operations on the production equipment in the production workshop based on the equipment maintenance level;

[0013] Step S104: After the production equipment maintenance is completed, obtain the equipment operation data of the production equipment;

[0014] Step S105: Analyze the operating status of the production equipment based on the equipment operation data to obtain the equipment status of the production equipment;

[0015] Step S106: Take timely action to monitor the energy consumption of production equipment based on the equipment status.

[0016] Furthermore, the equipment configuration information includes the number of various production equipment in the production workshop, the unit product output and energy consumption type of the production equipment, and the unit energy consumption of the corresponding energy consumption type of the production equipment;

[0017] The energy consumption types include electricity consumption, gas consumption, water consumption, and steam consumption.

[0018] Furthermore, the analysis process for the energy efficiency level of the production equipment in step S101 is as follows:

[0019] Obtain the energy consumption types of various production equipment in the production workshop, and select the corresponding cost coefficients based on the energy consumption types. The specific correspondence between energy consumption types and cost coefficients is as follows:

[0020] If the energy consumption type of the production equipment is water consumption or steam consumption, then the corresponding cost coefficient is f1;

[0021] If the energy consumption type of the production equipment is electrical energy consumption, then the corresponding cost coefficient is f2;

[0022] If the energy consumption type of the production equipment is gas consumption, then the corresponding cost coefficient is f3; where 0 < f1 < f2 < f3;

[0023] Then, obtain the quantity of various production equipment, the unit product output CLI of each production equipment, the energy consumption type of each production equipment, and the unit energy consumption NHir of the corresponding energy consumption type of each production equipment. i is the production equipment number, with an upper limit of n, where n equals the quantity of the corresponding production equipment. r is the energy consumption type number, with values ​​of 1, 2, and 3. r=1 corresponds to gas consumption, r=2 to electrical energy consumption, and r=3 to steam and water consumption. Calculate the equipment energy efficiency value NXI of the production equipment according to the formula, as follows:

[0024] ;

[0025] The energy efficiency value of the production equipment is compared with the energy efficiency definition range. If the energy efficiency value of the production equipment belongs to the first energy efficiency definition range, the energy efficiency level of the production equipment is determined to be unqualified. If the energy efficiency value of the production equipment belongs to the second energy efficiency definition range, the energy efficiency level of the production equipment is determined to be qualified. The values ​​of the first and second energy efficiency definition ranges are both greater than zero, and the values ​​of the first energy efficiency definition range are all less than the values ​​of the second energy efficiency definition range.

[0026] Furthermore, the comprehensive evaluation process in step S102 is as follows:

[0027] Obtain the energy efficiency level of the production equipment in the production workshop, and count the number of qualified equipment (HG) in the production workshop by counting the production equipment with qualified energy efficiency levels.

[0028] The equipment qualification rate HL in the production workshop is calculated using the formula HL=HG / n.

[0029] The equipment qualification rate in the production workshop is compared with the standard qualification rate to determine the equipment maintenance level of the production workshop as the third equipment maintenance level, the second equipment maintenance level, or the first equipment maintenance level.

[0030] Furthermore, the maintenance intensity of the first equipment maintenance level is lower than that of the second equipment maintenance level, and the maintenance intensity of the second equipment maintenance level is lower than that of the third equipment maintenance level.

[0031] Furthermore, the maintenance operation in step S103 includes the following sub-steps:

[0032] Obtain the equipment maintenance level in the production workshop, and perform corresponding maintenance operations based on the equipment maintenance level. The specific correspondence between maintenance operations and equipment maintenance levels is as follows:

[0033] When the equipment maintenance level in the production workshop is the first equipment maintenance level, the staff will only carry out maintenance work on the production equipment whose energy efficiency level is unqualified.

[0034] When the equipment maintenance level in the production workshop is the second equipment maintenance level, the staff will replace parts for production equipment with unqualified energy efficiency and perform maintenance for production equipment with qualified energy efficiency.

[0035] When the equipment maintenance level in the production workshop is the third equipment maintenance level, the staff will replace the entire production equipment with an unqualified energy efficiency level, and perform repair and maintenance on the production equipment with a qualified energy efficiency level.

[0036] Furthermore, the equipment operation data includes the cycle energy consumption index, cycle running time, and cycle equipment temperature of the production equipment in each cycle. The cycle energy consumption index is the cumulative energy consumption of the production equipment at the beginning of each cycle and the cumulative energy consumption at the end of each cycle. The cycle running time is the total running time of the production equipment in each cycle. The cycle equipment temperature includes the highest and lowest internal temperature of the production equipment in each cycle.

[0037] Furthermore, the analysis process of the corresponding operating status of the production equipment in step S105 is as follows:

[0038] Obtain the cycle energy consumption index, cycle running time SCt, and cycle equipment temperature of the production equipment in each cycle, where t is the cycle number. Calculate the energy consumption change rate NZt of the production equipment in each cycle according to the formula NZt=(NHt2-NHt1) / SCt; where NHt2 is the cumulative energy consumption of the production equipment at the end of each cycle, and NHt1 is the cumulative energy consumption of the production equipment at the beginning of each cycle.

[0039] The energy consumption change rate of the production equipment in each cycle is compared with the standard energy consumption change rate. If the energy consumption change rate is less than or equal to the standard energy consumption change rate, the cycle in which the production equipment is located is recorded as a normal energy consumption cycle. If the energy consumption change rate is greater than the standard energy consumption change rate, the cycle in which the production equipment is located is recorded as an abnormal energy consumption cycle.

[0040] The abnormal energy consumption cycle rate of the production equipment is obtained by counting the number of abnormal energy consumption cycles and comparing it with the total number of cycles in which the production equipment is located.

[0041] The temperature change rate WZt of the production equipment in each cycle is calculated using the formula WZt=(WDt2-WDt1) / (T2-T1); where T1 is the time when the production equipment is at its lowest internal temperature in each cycle, T2 is the time when the production equipment is at its highest internal temperature in each cycle, WDt1 is the lowest internal temperature of the production equipment in each cycle, and WDt2 is the highest internal temperature of the production equipment in each cycle.

[0042] The temperature change rate of the production equipment in each cycle is compared with the standard temperature change rate. If the temperature change rate is less than or equal to the standard temperature change rate, the cycle in which the production equipment is located is recorded as a normal temperature cycle. If the temperature change rate is greater than the standard temperature change rate, the cycle in which the production equipment is located is recorded as an abnormal temperature cycle.

[0043] The abnormal temperature cycle rate of the production equipment is obtained by counting the number of abnormal temperature cycles and comparing it with the total number of cycles in which the production equipment is located.

[0044] Compare the energy consumption cycle anomaly rate of production equipment with the energy consumption cycle anomaly rate threshold;

[0045] If the energy consumption cycle abnormality rate of the production equipment is greater than the energy consumption cycle abnormality rate threshold, the equipment status of the production equipment is determined to be abnormal in terms of energy consumption.

[0046] If the energy consumption growth rate of the production equipment is less than or equal to the energy consumption growth rate threshold, the temperature cycle abnormality rate of the production equipment is compared with the temperature cycle abnormality rate threshold. If the temperature cycle abnormality rate of the production equipment is greater than the temperature cycle abnormality rate threshold, the equipment status of the production equipment is determined to be an energy consumption abnormality warning. If the temperature cycle abnormality rate of the production equipment is less than or equal to the temperature cycle abnormality rate threshold, the equipment status of the production equipment is determined to be normal energy consumption.

[0047] Furthermore, the intervention process for the energy consumption of the production equipment in step S106 is as follows:

[0048] If the equipment status of the production equipment is abnormal energy consumption, the corresponding production equipment shall be shut down immediately and personnel shall be arranged to carry out equipment maintenance.

[0049] If the equipment status of the production equipment is an abnormal energy consumption warning, the working efficiency of the production equipment will be reduced, and the temperature control equipment will be activated to cool down the production equipment.

[0050] If the production equipment is in normal energy consumption status, no intervention is required.

[0051] Secondly, a production workshop energy consumption optimization system includes a server, an equipment management module, an energy consumption analysis module, an equipment evaluation module, an equipment monitoring module, an operation analysis module, a maintenance terminal, and an execution terminal.

[0052] The equipment management module is used to obtain equipment configuration information in the production workshop and send the equipment configuration information to the server. The server then sends the equipment configuration information in the production workshop to the energy consumption analysis module.

[0053] The energy consumption analysis module is used to analyze the energy efficiency level of production equipment in the production workshop, obtain the energy efficiency level of various production equipment in the production workshop and send it to the server, and the server sends the energy efficiency level of various production equipment in the production workshop to the equipment evaluation module.

[0054] The equipment evaluation module is used to comprehensively evaluate the equipment status of production equipment in the production workshop. The comprehensive evaluation results in the equipment maintenance level of the production workshop and sends it to the server. The server then sends the equipment maintenance level of the production workshop to the maintenance terminal.

[0055] The maintenance terminal is used to perform maintenance operations on production equipment in the production workshop;

[0056] After the production equipment maintenance is completed, the equipment monitoring module is used to acquire the equipment operation data of the production equipment and send it to the server. The server then sends the equipment operation data of the production equipment to the operation analysis module.

[0057] The operation analysis module is used to analyze the operating status of the production equipment, obtain the equipment status of the production equipment and send it to the server, and the server sends the equipment status of the production equipment to the execution terminal.

[0058] The execution terminal is used to intervene in the energy consumption of production equipment in a timely manner.

[0059] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0060] 1. This invention analyzes the energy efficiency level of production equipment in the production workshop by combining equipment configuration information, obtains the energy efficiency level of various production equipment in the production workshop, and then comprehensively evaluates the equipment status of production equipment in the production workshop based on the energy efficiency level, obtains the equipment maintenance level of the production workshop, and performs maintenance operations on production equipment in the production workshop based on the equipment maintenance level.

[0061] 2. After the maintenance of production equipment in the production workshop is completed, the present invention analyzes the operating status of the production equipment in combination with the equipment operation data to obtain the equipment status, and then intelligently processes the energy consumption of the production equipment based on the equipment status. The present invention realizes intelligent processing of production energy consumption in the production workshop while ensuring the efficiency of anomaly elimination. Attached Figure Description

[0062] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0063] Figure 1 This is a flowchart of the method of the present invention;

[0064] Figure 2 This is a schematic diagram illustrating the principle of temperature control in the periodic equipment of this invention.

[0065] Figure 3 This is a schematic diagram illustrating the principle of the periodic energy consumption index in this invention;

[0066] Figure 4 This is an overall system block diagram of the present invention. Detailed Implementation

[0067] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0068] Example 1: Please refer to Figures 1-3 As shown, the technical solution provided by this invention is: a method for optimizing production energy consumption in a production workshop, comprising the following steps:

[0069] Step S101: Obtain equipment configuration information of the production workshop, and analyze the energy efficiency level of the production equipment in the production workshop in combination with the equipment configuration information to obtain the energy efficiency level of various production equipment in the production workshop.

[0070] The equipment configuration information includes the number of various production equipment in the production workshop, the unit product output and energy consumption type of the production equipment, and the unit energy consumption of the corresponding energy consumption type of the production equipment. The number of equipment refers to the total number of production equipment configured and put into production in the production workshop. In actual operation, if multiple batches of production equipment are rotated, the number of production equipment is based on the number of production equipment in one batch. The energy consumption type refers to the type of energy consumed by the production equipment during operation. In this embodiment, the preferred energy consumption types are electricity consumption, gas consumption, water consumption, and steam consumption. In actual operation, production equipment with mixed energy consumption can have multiple energy consumption types at the same time. The unit energy consumption is the total energy consumption of the production equipment in a unit of time, and the unit product output is the product output of the production equipment in a unit of time.

[0071] Specifically, the analysis process of the energy efficiency level of the production equipment in step S101 is as follows:

[0072] Step S1011: Obtain the energy consumption types of various production equipment in the production workshop;

[0073] Step S1012: Select the corresponding cost coefficient according to the energy consumption type. The specific correspondence between energy consumption type and cost coefficient is as follows:

[0074] If the energy consumption type of the production equipment is water consumption or steam consumption, then the corresponding cost coefficient is f1;

[0075] If the energy consumption type of the production equipment is electrical energy consumption, then the corresponding cost coefficient is f2;

[0076] If the energy consumption type of the production equipment is gas consumption, then the corresponding cost coefficient is f3;

[0077] Where 0 < f1 < f2 < f3, it can be understood that the cost coefficient is used to reflect the cost of using the energy consumption type. The larger the value of the cost coefficient, the higher the cost when producing the corresponding energy consumption type.

[0078] Step S1013: Then, obtain the quantity of various production equipment, the unit product output CLI of the production equipment, the energy consumption type of the production equipment, and the unit energy consumption NHir of the corresponding energy consumption type of the production equipment. i is the serial number of the production equipment, the upper limit of i is n, the value of n is equal to the quantity of the corresponding production equipment, and r is the serial number of the energy consumption type. The value of r includes 1, 2, and 3. r=1 corresponds to gas consumption, r=2 corresponds to electrical energy consumption, and r=3 corresponds to steam consumption and water resource consumption. Calculate the equipment energy efficiency value NXI of the production equipment according to the formula, the specific formula is as follows:

[0079] ;

[0080] Among them, the equipment energy efficiency value is used to reflect the energy conversion efficiency of production equipment. The less energy consumption per unit of various energy consumption types of production equipment, the more output per unit of product, and the greater the equipment energy efficiency value of the production equipment.

[0081] Step S1014: Compare the energy efficiency value of the production equipment with the energy efficiency definition range;

[0082] Step S1015: If the energy efficiency value of the production equipment falls within the first energy efficiency definition range, then the energy efficiency level of the production equipment is determined to be unqualified.

[0083] Step S1016: If the energy efficiency value of the production equipment falls within the second energy efficiency definition range, then the energy efficiency level of the production equipment is determined to be qualified.

[0084] The values ​​of both the first energy efficiency definition interval and the second energy efficiency definition interval are greater than zero, and the values ​​of the first energy efficiency definition interval are all less than the values ​​of the second energy efficiency definition interval.

[0085] Step S102: Combine the energy efficiency level to conduct a comprehensive assessment of the equipment status of the production equipment in the production workshop, and obtain the equipment maintenance level of the production workshop from the comprehensive assessment.

[0086] In this embodiment, the comprehensive evaluation process in step S102 is as follows:

[0087] Step S1021: Obtain the energy efficiency level of the production equipment in the production workshop, and count the number of qualified equipment HG in the production workshop by counting the production equipment with qualified energy efficiency level;

[0088] Step S1022: Calculate the equipment qualification rate HL in the production workshop according to the formula, which is as follows:

[0089] HL = HG / n;

[0090] Step S1023: Compare the equipment qualification rate in the production workshop with the standard qualification rate;

[0091] Step S1024: If the equipment pass rate is less than or equal to the first standard pass rate, the equipment maintenance level of the production workshop is determined to be the third equipment maintenance level.

[0092] Step S1025: If the equipment pass rate is greater than the first standard pass rate and less than or equal to the second standard pass rate, then the equipment maintenance level of the production workshop is determined to be the second equipment maintenance level.

[0093] Step S1026: If the equipment pass rate is greater than the second standard pass rate, then the equipment maintenance level of the production workshop is determined to be the first equipment maintenance level.

[0094] The standard pass rate is pre-stored in the database. The values ​​of the first standard pass rate and the second standard pass rate are both greater than zero. The first standard pass rate is less than the second standard pass rate. The equipment maintenance intensity of the first equipment maintenance level is lower than that of the second equipment maintenance level. The equipment maintenance intensity of the second equipment maintenance level is lower than that of the third equipment maintenance level.

[0095] Step S103: Perform maintenance operations on the production equipment in the production workshop based on the equipment maintenance level;

[0096] In this embodiment, the maintenance operation in step S103 includes the following sub-steps:

[0097] Step S1031: Obtain the equipment maintenance level of the production workshop;

[0098] Step S1032: The staff performs the corresponding maintenance work according to the equipment maintenance level. The specific correspondence between the maintenance work and the equipment maintenance level is as follows:

[0099] When the equipment maintenance level in the production workshop is the first equipment maintenance level, the staff will only carry out maintenance work on the production equipment whose energy efficiency level is unqualified.

[0100] When the equipment maintenance level in the production workshop is the second equipment maintenance level, the staff will replace parts for production equipment with unqualified energy efficiency and perform maintenance for production equipment with qualified energy efficiency.

[0101] When the equipment maintenance level in the production workshop is the third equipment maintenance level, the staff will replace the entire production equipment with an unqualified energy efficiency level, and perform repair and maintenance on the production equipment with a qualified energy efficiency level.

[0102] As a further aspect of the present invention, the following steps are also included:

[0103] Step S104: After the production equipment maintenance is completed, obtain the equipment operation data of the production equipment;

[0104] It should be specifically noted that the equipment operation data includes the cycle energy consumption index, cycle running time, and cycle equipment temperature of the production equipment in each cycle. For example, Figure 2 and Figure 3 As shown, the cycle energy consumption index is the cumulative energy consumption of the production equipment at the beginning of each cycle and the cumulative energy consumption at the end of each cycle. Therefore, the cumulative energy consumption at the end of each cycle must be greater than the cumulative energy consumption at the beginning of each cycle. It is preferred that the cumulative power consumption of the production equipment in each cycle be the cycle energy consumption index, the cycle running time is the total running time of the production equipment in each cycle, and the cycle equipment temperature includes the highest and lowest internal temperatures of the production equipment in each cycle.

[0105] Step S105: Analyze the operating status of the production equipment based on the equipment operation data to obtain the equipment status of the production equipment;

[0106] In this embodiment, the analysis process of the corresponding operating status of the production equipment in step S105 is as follows:

[0107] Step S1051: Obtain the cycle energy consumption index, cycle running time SCt, and cycle equipment temperature of the production equipment in each cycle, where t is the cycle number; calculate the energy consumption change rate NZt of the production equipment in each cycle according to the formula, as follows:

[0108] NZt = (NHt2 - NHt1) / SCt; where NHt2 is the cumulative energy consumption of the production equipment at the end of each cycle, and NHt1 is the cumulative energy consumption of the production equipment at the beginning of each cycle.

[0109] Step S1052: Compare the energy consumption change rate of the production equipment in each cycle with the standard energy consumption change rate. If the energy consumption change rate is less than or equal to the standard energy consumption change rate, the cycle in which the production equipment is located is recorded as a normal energy consumption cycle. If the energy consumption change rate is greater than the standard energy consumption change rate, the cycle in which the production equipment is located is recorded as an abnormal energy consumption cycle.

[0110] Step S1053: Count the number of abnormal energy consumption cycles and compare it with the total number of cycles in which the production equipment is located to obtain the abnormal energy consumption cycle rate of the production equipment; calculate the temperature change rate WZt of the production equipment in each cycle according to the formula, the specific formula is as follows:

[0111] WZt = (WDt2 - WDt1) / (T2 - T1); where T1 is the time when the production equipment is at its lowest internal temperature in each cycle, T2 is the time when the production equipment is at its highest internal temperature in each cycle, WDt1 is the lowest internal temperature of the production equipment in each cycle, and WDt2 is the highest internal temperature of the production equipment in each cycle.

[0112] Step S1054: Compare the temperature change rate of the production equipment in each cycle with the standard temperature change rate. If the temperature change rate is less than or equal to the standard temperature change rate, the cycle in which the production equipment is located is recorded as a normal temperature cycle. If the temperature change rate is greater than the standard temperature change rate, the cycle in which the production equipment is located is recorded as an abnormal temperature cycle.

[0113] Step S1055: Count the number of abnormal temperature cycles and compare it with the total number of cycles in which the production equipment is located to obtain the abnormal temperature cycle rate of the production equipment.

[0114] Step S1056: Compare the energy consumption cycle abnormality rate of the production equipment with the energy consumption cycle abnormality rate threshold.

[0115] Step S1057: If the energy consumption cycle abnormality rate of the production equipment is greater than the energy consumption cycle abnormality rate threshold, then the equipment status of the production equipment is determined to be energy consumption abnormal.

[0116] Step S1058: If the energy consumption growth rate of the production equipment is less than or equal to the energy consumption growth rate threshold, the temperature cycle abnormality rate of the production equipment is compared with the temperature cycle abnormality rate threshold. If the temperature cycle abnormality rate of the production equipment is greater than the temperature cycle abnormality rate threshold, the equipment status of the production equipment is determined to be an energy consumption abnormality warning. If the temperature cycle abnormality rate of the production equipment is less than or equal to the temperature cycle abnormality rate threshold, the equipment status of the production equipment is determined to be normal energy consumption.

[0117] Step S106: Take timely action to monitor the energy consumption of production equipment based on its status.

[0118] In this embodiment, the intervention process for the energy consumption of the production equipment in step S106 is as follows:

[0119] Step S1061: If the equipment status of the production equipment is abnormal energy consumption, the corresponding production equipment shall be shut down immediately and personnel shall be arranged to carry out equipment maintenance.

[0120] Step S1062: If the equipment status of the production equipment is an abnormal energy consumption warning, reduce the working efficiency of the production equipment and activate the temperature control equipment to cool down the production equipment.

[0121] Step S1063: If the equipment status of the production equipment is normal energy consumption, no intervention is required.

[0122] In this application, if a corresponding calculation formula appears, the above calculation formula is a dimensionless calculation. The weighting coefficient, proportional coefficient and other coefficients in the formula are set to quantify each parameter to obtain a result value. The size of the weighting coefficient and proportional coefficient is only required to not affect the proportional relationship between the parameter and the result value.

[0123] Example 2: Please refer to Figure 4 As shown, based on another concept of the same invention, a production workshop energy consumption optimization system is proposed, including a server, an equipment management module, an energy consumption analysis module, an equipment evaluation module, an equipment monitoring module, an operation analysis module, a maintenance terminal, and an execution terminal;

[0124] The equipment management module is used to obtain equipment configuration information in the production workshop and send the equipment configuration information to the server. The server then sends the equipment configuration information in the production workshop to the energy consumption analysis module.

[0125] The energy consumption analysis module is used to analyze the energy efficiency level of production equipment in the production workshop. The analysis yields the energy efficiency level of various production equipment in the workshop and sends it to the server. The server then sends the energy efficiency level of various production equipment in the workshop to the equipment evaluation module. The specific process of energy efficiency level analysis is as follows:

[0126] Obtain the energy consumption types of various production equipment in the production workshop, and select the corresponding cost coefficients based on the energy consumption types. Then, obtain the quantity of each production equipment, the unit product output (CLi) and energy consumption type of each equipment, and the unit energy consumption (NHir) for each energy consumption type. Here, i is the equipment number, with an upper limit of n, where n equals the quantity of the corresponding equipment. r is the energy consumption type number, with values ​​of 1, 2, and 3. r=1 corresponds to gas consumption, r=2 to electrical energy consumption, and r=3 to steam and water consumption. The calculation is based on the formula... Calculate the energy efficiency value (NXi) of the production equipment; compare the energy efficiency value of the production equipment with the energy efficiency definition range; if the energy efficiency value of the production equipment belongs to the first energy efficiency definition range, the energy efficiency level of the production equipment is determined to be unqualified; if the energy efficiency value of the production equipment belongs to the second energy efficiency definition range, the energy efficiency level of the production equipment is determined to be qualified.

[0127] The equipment assessment module is used to comprehensively assess the equipment status of production equipment in the production workshop. The comprehensive assessment yields the equipment maintenance level of the production workshop and sends it to the server. The server then sends the equipment maintenance level of the production workshop to the maintenance terminal. The specific process of comprehensive assessment is as follows:

[0128] Obtain the energy efficiency level of the production equipment in the production workshop, count the number of qualified equipment (HG) in the production workshop, and calculate the equipment qualification rate (HL) of the production workshop according to the formula HL=HG / n. Compare the equipment qualification rate of the production workshop with the standard qualification rate. If the equipment qualification rate is less than or equal to the first standard qualification rate, the equipment maintenance level of the production workshop is determined to be the third equipment maintenance level. If the equipment qualification rate is greater than the first standard qualification rate and less than or equal to the second standard qualification rate, the equipment maintenance level of the production workshop is determined to be the second equipment maintenance level. If the equipment qualification rate is greater than the second standard qualification rate, the equipment maintenance level of the production workshop is determined to be the first equipment maintenance level.

[0129] The maintenance terminal is used to perform maintenance operations on production equipment in the production workshop. The module's working process is as follows:

[0130] The equipment maintenance level of the production workshop is obtained, and staff perform corresponding maintenance operations according to the equipment maintenance level. The specific correspondence between maintenance operations and equipment maintenance levels is as follows: when the equipment maintenance level of the production workshop is the first equipment maintenance level, staff only perform repair operations on production equipment with unqualified energy efficiency. When the equipment maintenance level of the production workshop is the second equipment maintenance level, staff perform parts replacement operations on production equipment with unqualified energy efficiency and perform maintenance operations on production equipment with qualified energy efficiency. When the equipment maintenance level of the production workshop is the third equipment maintenance level, staff perform complete machine replacement operations on production equipment with unqualified energy efficiency and perform repair and maintenance operations on production equipment with qualified energy efficiency.

[0131] After the production equipment maintenance is completed, the equipment monitoring module is used to acquire the equipment operation data of the production equipment and send it to the server. The server then sends the equipment operation data of the production equipment to the operation analysis module.

[0132] The operation analysis module is used to analyze the operating status of the production equipment, obtain the equipment status, and send it to the server. The server then sends the equipment status to the execution terminal. The specific process of operating status analysis is as follows:

[0133] Obtain the cycle energy consumption index, cycle running time SCt, and cycle equipment temperature of the production equipment for each cycle, where t is the cycle number. Calculate the energy consumption change rate NZt of the production equipment in each cycle using the formula NZt = (NHt2 - NHt1) / SCt; where NHt2 is the cumulative energy consumption of the production equipment at the end of each cycle, and NHt1 is the cumulative energy consumption of the production equipment at the beginning of each cycle. Compare the energy consumption change rate of the production equipment in each cycle with the standard energy consumption change rate. If the energy consumption change rate is less than or equal to the standard energy consumption change rate, the cycle in which the production equipment is located is recorded as a normal energy consumption cycle. If the energy consumption change rate is greater than the standard energy consumption change rate, the cycle in which the production equipment is located is recorded as an abnormal energy consumption cycle. Count the number of abnormal energy consumption cycles and compare it with the total number of cycles in which the production equipment is located to obtain the abnormal energy consumption cycle rate of the production equipment.

[0134] The temperature change rate WZt of the production equipment in each cycle is calculated using the formula WZt = (WDt2 - WDt1) / (T2 - T1). In this formula, T1 is the time the production equipment is at its lowest internal temperature in each cycle, T2 is the time the production equipment is at its highest internal temperature in each cycle, WDt1 is the lowest internal temperature of the production equipment in each cycle, and WDt2 is the highest internal temperature of the production equipment in each cycle. The temperature change rate of the production equipment in each cycle is compared with the standard temperature change rate. If the temperature change rate is less than or equal to the standard temperature change rate, the cycle in which the production equipment is located is recorded as a normal temperature cycle. If the temperature change rate is greater than the standard temperature change rate, the cycle in which the production equipment is located is recorded as an abnormal temperature cycle. The number of abnormal temperature cycles is counted and compared with the total number of cycles in which the production equipment is located to obtain the abnormal temperature cycle rate of the production equipment.

[0135] The energy consumption cycle anomaly rate of the production equipment is compared with the energy consumption cycle anomaly rate threshold. If the energy consumption cycle anomaly rate of the production equipment is greater than the energy consumption cycle anomaly rate threshold, the equipment status of the production equipment is determined to be energy consumption anomaly. If the energy consumption growth rate of the production equipment is less than or equal to the energy consumption growth rate threshold, the temperature cycle anomaly rate of the production equipment is compared with the temperature cycle anomaly rate threshold. If the temperature cycle anomaly rate of the production equipment is greater than the temperature cycle anomaly rate threshold, the equipment status of the production equipment is determined to be energy consumption anomaly warning. If the temperature cycle anomaly rate of the production equipment is less than or equal to the temperature cycle anomaly rate threshold, the equipment status of the production equipment is determined to be energy consumption normal.

[0136] The execution terminal is used to intervene in the energy consumption of production equipment in a timely manner. The specific working process of the module is as follows:

[0137] If the equipment status of the production equipment is abnormal energy consumption, the corresponding production equipment will be shut down immediately and staff will be arranged to carry out equipment maintenance. If the equipment status of the production equipment is an abnormal energy consumption warning, the working efficiency of the production equipment will be reduced, and the temperature control equipment will be activated to cool down the production equipment. If the equipment status of the production equipment is normal energy consumption, no intervention will be taken.

[0138] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for optimizing energy consumption in a production plant, characterized in that, The specific method is as follows: Step S101: Obtain equipment configuration information of the production workshop, and analyze the energy efficiency level of the production equipment in the production workshop in combination with the equipment configuration information to obtain the energy efficiency level of various production equipment in the production workshop. The specific process for analyzing the energy efficiency level of the production equipment in step S101 is as follows: Obtain the energy consumption types of various production equipment in the production workshop, and select the corresponding cost coefficients based on the energy consumption types. The specific correspondence between energy consumption types and cost coefficients is as follows: If the energy consumption type of the production equipment is water consumption or steam consumption, then the corresponding cost coefficient is f1; If the energy consumption type of the production equipment is electrical energy consumption, then the corresponding cost coefficient is f2; If the energy consumption type of the production equipment is gas consumption, then the corresponding cost coefficient is f3; where 0 < f1 < f2 < f3; Then, obtain the quantity of various production equipment, the unit product output CLI of each production equipment, the energy consumption type of each production equipment, and the unit energy consumption NHir of the corresponding energy consumption type of each production equipment. i is the production equipment number, with an upper limit of n, where n equals the quantity of the corresponding production equipment. r is the energy consumption type number, with values ​​of 1, 2, and 3. r=1 corresponds to gas consumption, r=2 to electrical energy consumption, and r=3 to steam and water consumption. Calculate the equipment energy efficiency value NXI of the production equipment according to the formula, as follows: ； The energy efficiency value of the production equipment is compared with the energy efficiency definition range. If the energy efficiency value of the production equipment falls within the first energy efficiency definition range, the energy efficiency level of the production equipment is deemed unqualified. If the energy efficiency value of the production equipment falls within the second energy efficiency definition range, the energy efficiency level of the production equipment is deemed qualified. The values ​​of both the first and second energy efficiency definition ranges are greater than zero, and the values ​​of the first energy efficiency definition range are all less than the values ​​of the second energy efficiency definition range. Step S102: Combine the energy efficiency level to conduct a comprehensive assessment of the equipment status of the production equipment in the production workshop, and obtain the equipment maintenance level of the production workshop from the comprehensive assessment. The comprehensive evaluation process in step S102 is as follows: Obtain the energy efficiency level of the production equipment in the production workshop, and count the number of qualified equipment (HG) in the production workshop by counting the production equipment with qualified energy efficiency levels. The equipment qualification rate HL in the production workshop is calculated using the formula HL=HG / n. The equipment qualification rate in the production workshop is compared with the standard qualification rate to determine the equipment maintenance level of the production workshop as the third equipment maintenance level, the second equipment maintenance level, or the first equipment maintenance level. Step S103: Perform maintenance operations on the production equipment in the production workshop based on the equipment maintenance level; The maintenance operation in step S103 includes the following sub-steps: Obtain the equipment maintenance level in the production workshop, and perform corresponding maintenance operations based on the equipment maintenance level. The specific correspondence between maintenance operations and equipment maintenance levels is as follows: When the equipment maintenance level in the production workshop is the first equipment maintenance level, the staff will only carry out maintenance work on the production equipment whose energy efficiency level is unqualified. When the equipment maintenance level of the production workshop is the second equipment maintenance level, the worker performs a part replacement operation on the production equipment with an unqualified energy efficiency level and performs a maintenance operation on the production equipment with a qualified energy efficiency level; When the equipment maintenance level of the production workshop is the third equipment maintenance level, the worker performs a whole machine replacement operation on the production equipment with an unqualified energy efficiency level and performs a repair and maintenance operation on the production equipment with a qualified energy efficiency level; Step S104, after the production equipment maintenance is completed, the device running data of the production equipment is acquired; Step S105, the running state of the production equipment is analyzed in combination with the device running data, and the device state of the production equipment is obtained through analysis; The analysis process of the production equipment corresponding running state in step S105 is as follows: The cycle energy consumption index, cycle running time SCt and cycle device temperature of the production equipment in each cycle are acquired, t is the cycle serial number, and the energy consumption change rate NZt of the production equipment in each cycle is calculated according to the formula NZt= (NHt2-NHt1) / SCt; in the formula, NHt2 is the cumulative consumed energy amount of the production equipment at the end of each cycle, and NHt1 is the cumulative consumed energy amount of the production equipment at the beginning of each cycle; The energy consumption change rate of the production equipment in each cycle is compared with the standard energy consumption change rate, if the energy consumption change rate is less than or equal to the standard energy consumption change rate, the cycle of the production equipment is recorded as a normal energy consumption cycle, if the energy consumption change rate is greater than the standard energy consumption change rate, the cycle of the production equipment is recorded as an abnormal energy consumption cycle; The number of abnormal energy consumption cycles is counted and compared with the total number of cycles of the production equipment, and the energy consumption cycle abnormality rate of the production equipment is obtained; The temperature change rate WZt of the production equipment in each cycle is calculated according to the formula WZt= (WDt2-WDt1) / (T2-T1); in the formula, T1 is the time when the production equipment is at the lowest temperature inside the device in each cycle, T2 is the time when the production equipment is at the highest temperature inside the device in each cycle, WDt1 is the lowest temperature inside the device of the production equipment in each cycle, and WDt2 is the highest temperature inside the device of the production equipment in each cycle; The temperature change rate of the production equipment in each cycle is compared with the standard temperature change rate, if the temperature change rate is less than or equal to the standard temperature change rate, the cycle of the production equipment is recorded as a normal temperature cycle, if the temperature change rate is greater than the standard temperature change rate, the cycle of the production equipment is recorded as an abnormal temperature cycle; The number of abnormal temperature cycles is counted and compared with the total number of cycles of the production equipment, and the temperature cycle abnormality rate of the production equipment is obtained; The energy consumption cycle abnormality rate of the production equipment is compared with the energy consumption cycle abnormality rate threshold value; If the energy consumption cycle abnormality rate of the production equipment is greater than the energy consumption cycle abnormality rate threshold value, it is determined that the device state of the production equipment is energy consumption abnormality. If the energy consumption growth rate of the production device is less than or equal to the energy consumption growth rate threshold, the temperature cycle anomaly rate of the production device is compared with the temperature cycle anomaly rate threshold, and when the temperature cycle anomaly rate of the production device is greater than the temperature cycle anomaly rate threshold, it is determined that the device state of the production device is an energy consumption anomaly warning, and when the temperature cycle anomaly rate of the production device is less than or equal to the temperature cycle anomaly rate threshold, it is determined that the device state of the production device is normal energy consumption; In step S106, the energy consumption of the production device is intervened in time in combination with the device state; In step S106, the intervention process of the production device corresponding to the energy consumption is as follows: If the device state of the production device is energy consumption anomaly, the corresponding production device is urgently shut down and the staff is arranged to repair the device immediately; If the device state of the production device is energy consumption anomaly warning, the working efficiency of the production device is reduced, and the temperature control device is started to compensate for the cooling of the production device; If the device state of the production device is normal energy consumption, no intervention is performed.

2. A method for optimizing energy consumption in a production plant according to claim 1, characterized in that, The device configuration information includes the device quantity of various production devices in the production workshop, the unit product yield and energy consumption type of the production device, and the unit energy consumption of the production device corresponding to the energy consumption type. The energy consumption type includes electric energy consumption, gas consumption, water resource consumption and steam consumption.

3. The method for optimizing energy consumption of a production plant according to claim 1, wherein, The device maintenance level of the first device is lower than the device maintenance level of the second device, and the device maintenance level of the second device is lower than the device maintenance level of the third device.

4. The method for optimizing energy consumption of a production plant according to claim 1, wherein, The device running data includes cycle energy consumption index, cycle running time and cycle device temperature of the production device in each cycle, wherein the cycle energy consumption index is the cumulative consumed energy at the beginning of each cycle and the cumulative consumed energy at the end of each cycle, the cycle running time is the total running time of the production device in each cycle, and the cycle device temperature includes the highest internal temperature and the lowest internal temperature of the production device in each cycle.

5. A production plant production energy consumption optimization system, characterized by, The system includes a server, a device management module, an energy consumption analysis module, a device evaluation module, a device monitoring module, an operation analysis module, a maintenance terminal and an execution terminal. The device management module is used to obtain the device configuration information of the production workshop, and send the device configuration information to the server, and the server sends the device configuration information of the production workshop to the energy consumption analysis module; The energy consumption analysis module is used to analyze the energy efficiency level of the production device in the production workshop, and the energy efficiency level of various production devices in the production workshop is obtained and sent to the server, and the server sends the energy efficiency level of various production devices in the production workshop to the device evaluation module; The device evaluation module is used to comprehensively evaluate the device state of the production device in the production workshop, and the device maintenance level of the production workshop is obtained and sent to the server, and the server sends the device maintenance level of the production workshop to the maintenance terminal; The maintenance terminal is used for maintenance work of the production device in the production workshop; When the production equipment is maintained, the equipment monitoring module is configured to acquire equipment operation data of the production equipment and send the equipment operation data to a server, and the server is configured to send the equipment operation data of the production equipment to an operation analysis module; The operation analysis module is configured to analyze the operation state of the production equipment, obtain the equipment state of the production equipment, and send the equipment state to the server, and the server is configured to send the equipment state of the production equipment to an execution terminal; The execution terminal is configured to timely intervene in the energy consumption of the production equipment.

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