Load energy-saving management method for large-scale chemical plant
By conducting multi-dimensional monitoring and analysis of energy consumption, production load and equipment load in each marked area of the chemical plant, the problem of intricate monitoring of different production areas in the existing technology is solved, and precise energy-saving regulation of chemical plant is achieved and improved Energy utilization efficiency and production safety.
Patent Information
- Application Number
- CN202411431685.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The load management of existing chemical plants lacks meticulous monitoring of different production areas, resulting in inaccurate monitoring of energy consumption and ineffective implementation and optimization of energy conservation regulation, affecting energy utilization efficiency and sustainable development.
By conducting multi-dimensional monitoring and analysis of energy consumption, production load and equipment load in each marked area of large chemical plants, the corresponding evaluation index is calculated to achieve accurate monitoring and energy-saving regulation of different production areas.
A comprehensive analysis of the energy use situation in different production areas of chemical plants has been achieved, strong data support is provided, and a basis for subsequent energy conservation regulation is provided, and energy utilization efficiency and production safety are improved.
Smart Images
Figure CN119398321A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of load energy saving, and in particular to a load energy saving management method for a large chemical plant. Background Art
[0002] In large chemical plants, energy consumption is a critical issue. High energy consumption not only increases production costs, but may also put greater pressure on the environment. In order to achieve sustainable development and reduce operating costs, load energy-saving management has become one of the key needs of chemical plants.
[0003] At present, the load management of chemical plants usually only focuses on the overall energy consumption, while ignoring the detailed monitoring of the loads in different production areas. This cannot effectively guarantee the accuracy of the load monitoring results, which is not conducive to the subsequent accurate analysis and execution of the energy-saving regulation of the chemical plant, and further reduces the effectiveness of the load energy-saving management of the chemical plant.
[0004] The energy-saving effect of load regulation has an important impact on the economic and environmental benefits of chemical plants. The current management system ignores the monitoring of energy usage in chemical plants after the implementation of load energy-saving measures, and cannot effectively guarantee the actual effect of energy-saving measures. It is not conducive to further optimization and adjustment of energy-saving management, and thus cannot improve the energy utilization efficiency and sustainable development capabilities of chemical plants. Summary of the invention
[0005] The object of the present invention is to provide a load energy-saving management method for a large-scale chemical plant to solve the problems raised in the above background.
[0006] The object of the present invention can be achieved by the following technical solution: A load energy-saving management method for a large chemical plant comprises the following steps:
[0007] Step 1: Energy consumption monitoring: Obtain the production area of the assembly line products in the target chemical plant, and record the production area of the assembly line products in the target chemical plant as the marked area, monitor and analyze the energy consumption parameters of each marked area of the target chemical plant corresponding to the current monitoring period, and obtain the energy consumption evaluation index of the target chemical plant corresponding to the current monitoring period;
[0008] Preferably, the energy consumption parameters of each marked area of the target chemical plant corresponding to the current monitoring period are monitored and analyzed, and the specific execution steps are:
[0009] The power consumption values of each marked area of the target chemical plant at each monitoring time point in the current monitoring period are monitored by smart meters, and the power consumption values of each marked area of the target chemical plant at each monitoring time point in the current monitoring period are obtained. i represents the number of each marked area, i=1,2,...,n, j represents the number of each monitoring time point, j=1,2,....,m;
[0010] The water consumption of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is monitored by a water meter, and the water consumption SY of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is obtained. j i ;
[0011] The steam usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is monitored by a steam flow meter, and the steam usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is obtained.
[0012] The fuel flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is monitored by the fuel flow meter, and the fuel flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is obtained.
[0013] The compressed gas flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is monitored by an orifice flowmeter to obtain the compressed gas flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period.
[0014] The chemical product output of each marked area of the target chemical plant corresponding to the current monitoring period is obtained from the production management background of the target chemical plant, and it is matched with the reference energy consumption parameter set corresponding to each set chemical product output to obtain the reference energy consumption parameter set corresponding to each marked area. At the same time, the reference power consumption value, reference water usage, reference steam usage, reference fuel flow rate and reference compressed gas flow rate corresponding to each marked area are extracted from it, which are recorded as DL i ', SY i ', ZQ i ', RL i ', YT i ';
[0015] According to the formula Calculate the energy consumption evaluation index of the target chemical plant corresponding to the current monitoring period a1, a2, a3, a4, and a5 represent preset weight factors respectively.
[0016] Step 2: Production load monitoring: Monitor and analyze the production load parameters of each marked area of the target chemical plant corresponding to the current monitoring period, and obtain the production load evaluation index of the target chemical plant corresponding to the current monitoring period;
[0017] Preferably, the production load parameters of each marked area of the target chemical plant corresponding to the current monitoring period are monitored and analyzed, and the specific execution steps are:
[0018] Obtain the output of chemical products in each marked area of the target chemical plant corresponding to the current monitoring period from the production management background of the target chemical plant, recorded as CL i At the same time, the total raw material consumption corresponding to the output of chemical products in each area of the target chemical plant during the current monitoring period is obtained, which is recorded as HL i , according to the formula Calculate the actual unit consumption value SH of each marked area of the target chemical plant corresponding to the current monitoring period i ;
[0019] Extract the estimated production of each marked area of the target chemical plant corresponding to the monitoring period from the database, obtain the actual period of the current monitoring period, and match the actual period of the current monitoring period with the estimated production impact value corresponding to each set actual period to obtain the estimated production impact value of the current monitoring period;
[0020] Divide the estimated production of each area in the target chemical plant corresponding to the monitoring period by the number of actual time periods in the actual monitoring period to obtain the estimated production of each area in the target chemical plant corresponding to the actual time period in the monitoring period;
[0021] The estimated production of each area in the target chemical plant corresponding to each actual period in the monitoring cycle is subtracted from the estimated production impact value of the current monitoring period to obtain the estimated production of each area in the target chemical plant corresponding to the current monitoring period, which is recorded as YC i , and match it with the estimated raw material consumption corresponding to each estimated output, and obtain the estimated raw material consumption YH of each marked area of the target chemical plant corresponding to the current monitoring period i , according to the formula Calculate the estimated unit consumption value YD for each marked area of the target chemical plant corresponding to the current monitoring period i ;
[0022] According to the formula Calculate the unit consumption evaluation index of the target chemical plant corresponding to the current monitoring period
[0023] The number of qualified products and the number of unqualified products are extracted from the output of chemical products in each marked area of the target chemical plant corresponding to the current monitoring period, and are recorded as HG i , BH i , according to the formula Calculate the production and quality evaluation index of the target chemical plant corresponding to the current monitoring period b1 and b2 represent the set weight factors respectively;
[0024] The process condition parameters of each process stage at each monitoring time point in the current monitoring period corresponding to each marked area of the target chemical plant are obtained, and compared with the reference interval of the process condition parameters of each process stage stored in the database. If the process condition parameters of a process stage at a certain monitoring time point are not in the reference interval of the process condition parameters of the process stage stored in the database, the monitoring time point is recorded as an abnormal time point, and each normal period of each process condition is composed of adjacent normal time points, and each abnormal period of each process condition is composed of adjacent abnormal time points. The normal period of each process condition and the abnormal period of each process condition corresponding to the current monitoring period of each marked area of the target chemical plant are obtained, and the total duration of the normal period of the process condition and the total duration of the abnormal period of the process condition corresponding to the current monitoring period of each marked area of the target chemical plant are counted, which are recorded as ZT respectively. i , YT i ;
[0025] According to the formula Calculate the process adaptation index of each marked area of the target chemical plant corresponding to the current monitoring period b3 and b4 represent the set weight factors respectively;
[0026] According to the formula The production load evaluation index φ of the target chemical plant corresponding to the current monitoring period is calculated, and b5, b6, and b7 are respectively represented as the set evaluation factors.
[0027] Step 3: Equipment load monitoring: monitor and analyze the equipment load parameters of the target chemical plant corresponding to the current monitoring period to obtain the equipment load evaluation index of the target chemical plant corresponding to the current monitoring period;
[0028] Preferably, the equipment load parameters of each area of the target chemical plant corresponding to the current monitoring period are monitored and analyzed, and the specific execution steps are:
[0029] Obtain the chemical equipment in each marked area of the target chemical plant, and integrate and number them to obtain each chemical equipment in the target chemical plant;
[0030] Obtain the historical work records of each chemical equipment in the target chemical plant, and obtain the continuous working time of each chemical equipment corresponding to each historical work from them, calculate the average value, and obtain the average continuous working time corresponding to each chemical equipment, recorded as T f , f represents the serial number of each chemical equipment, f = 1, 2, ..., g, and the corresponding service life X of each chemical equipment is obtained at the same time f At the same time, the interval duration of each interval in the historical work of each chemical equipment is obtained, and the average value is calculated to obtain the average interval duration corresponding to each chemical equipment, which is recorded as Mf ;
[0031] According to the formula Calculate the work impact index corresponding to each chemical equipment c1, c2, and c3 represent preset exponential factors respectively;
[0032] The corresponding surface images of each chemical equipment in the target chemical plant are collected by intelligent cameras, and the corresponding surface images of each chemical equipment are obtained, from which the corresponding wear quantity, wear area, corrosion quantity, and corrosion area of each chemical equipment are obtained, which are recorded as MN f ,MS f 、FN f , FS f ;
[0033] The power sensor is used to detect the power of each chemical equipment in the target chemical plant at each working time point in the current monitoring period, and the power of each chemical equipment at each working time point in the current monitoring period is obtained. The average power of each chemical equipment corresponding to the current monitoring period is calculated, and the average power of each chemical equipment corresponding to the current monitoring period is obtained as the working power P of each chemical equipment corresponding to the current monitoring period. f ;
[0034] The current sensor is used to detect the current of each chemical equipment in the target chemical plant at each working time point in the current monitoring period, and the current of each chemical equipment at each working time point in the current monitoring period is obtained. The average current of each chemical equipment corresponding to the current monitoring period is calculated, and the average current of each chemical equipment corresponding to the current monitoring period is obtained as the working current I of each chemical equipment corresponding to the current monitoring period. f ;
[0035] The temperature of each chemical equipment in the target chemical plant at each working time point in the current monitoring period is detected by the temperature sensor, and the temperature of each chemical equipment at each working time point in the current monitoring period is obtained. The average temperature of each chemical equipment in the current monitoring period is calculated, and the average temperature of each chemical equipment in the current monitoring period is obtained as the working temperature W of each chemical equipment in the current monitoring period. f ;
[0036] The working impact index corresponding to each chemical equipment is matched with the working impact index threshold corresponding to each working impact level, and the working impact level corresponding to each chemical equipment is obtained. The working impact level is matched with the reference working state parameter set corresponding to each working impact level, and the reference working state parameter set corresponding to each chemical equipment is obtained. At the same time, the reference wear quantity, reference wear area, reference corrosion quantity, reference corrosion area, reference working power, reference working current, and reference working temperature of each chemical equipment corresponding to the working state are extracted, which are respectively recorded as MN f ',MS f '、FNf ', FS f '、P f '、I f ', W f ';
[0037] According to the formula Calculate the aging status assessment index corresponding to each chemical equipment c4, c5, c6, and c7 represent preset exponential factors respectively;
[0038] According to the formula Calculate the working status evaluation index of each chemical equipment corresponding to the current monitoring period e represents a natural constant, c8, c9, and c10 represent preset exponential factors respectively;
[0039] According to the formula The equipment load evaluation index η of the target chemical plant corresponding to the current monitoring period is calculated, and d1, d2, and d3 are respectively represented as the set evaluation factors.
[0040] Step 4: Load energy saving assessment: Analyze the primary assessment coefficient of the target chemical plant corresponding to the current monitoring period based on the energy consumption assessment index, production load assessment index, and equipment load assessment index of the target chemical plant corresponding to the current monitoring period, and analyze the energy saving control level of the target chemical plant corresponding to the current monitoring period based on the primary assessment coefficient of the target chemical plant corresponding to the current monitoring period, and adjust the target chemical plant accordingly;
[0041] Preferably, the energy-saving control level corresponding to the current monitoring period of the target chemical plant is analyzed, and the specific analysis method is as follows:
[0042] According to the formula Calculate the first-level evaluation coefficient ξ of the target chemical plant corresponding to the current monitoring period, where w1, w2, and w3 are respectively represented as preset weight factors;
[0043] The first-level evaluation coefficient of the target chemical plant corresponding to the current monitoring period is matched with the preset first-level evaluation coefficient thresholds corresponding to each energy-saving control level to obtain the energy-saving control level of the target chemical plant corresponding to the current monitoring period;
[0044] The energy-saving control level of the target chemical plant corresponding to the current monitoring period is matched with the energy-saving measures corresponding to each set energy-saving control level to obtain the energy-saving measures of the target chemical plant corresponding to the current monitoring period, and the energy-saving measures of the target chemical plant are implemented based on the energy-saving measures of the target chemical plant corresponding to the current monitoring period.
[0045] Step 5, energy-saving effect analysis: the current monitoring time point after the load regulation of the target chemical plant is used as the monitoring time point after the corresponding regulation of the target chemical plant, and the energy consumption of the target chemical plant at the corresponding monitoring time point after the regulation is monitored and analyzed, and the energy consumption evaluation index of the target chemical plant at the corresponding monitoring time point after the regulation is obtained, and the energy-saving effect of the target chemical plant after the load regulation is judged, and the energy-saving effect of the target chemical plant after the load regulation is obtained;
[0046] Preferably, the energy-saving effect of the target chemical plant after load regulation is determined as follows:
[0047] The energy consumption of the target chemical plant at the monitoring time point after the regulation is monitored and analyzed in the same analysis method as the energy consumption evaluation index of the target chemical plant at the current monitoring period, so as to obtain the energy consumption evaluation index of the target chemical plant at the monitoring time point after the regulation;
[0048] The energy consumption evaluation index of the target chemical plant at the monitoring time point after regulation is compared with the reference energy consumption evaluation index threshold after regulation stored in the database. If the energy consumption evaluation index of the target chemical plant at the monitoring time point after regulation is less than the reference energy consumption evaluation index threshold after regulation, the energy-saving effect of the target chemical plant after load regulation is judged to be excellent; otherwise, the energy-saving effect of the target chemical plant after load regulation is judged to be poor.
[0049] Step six, energy-saving effect execution: perform corresponding operations based on the energy-saving effect of the target chemical plant after load regulation. If the energy-saving effect of the target chemical plant after load regulation is excellent, start the display to display the energy-saving effect of the target chemical plant after load regulation. If the energy-saving effect of the target chemical plant after load regulation is poor, start the early warning device to warn of the energy-saving effect of the target chemical plant after load regulation.
[0050] Beneficial effects of the present invention:
[0051] 1. The present invention monitors and analyzes the energy consumption parameters of each marked area of the target chemical plant corresponding to the current monitoring period, thereby obtaining the energy consumption evaluation index of the target chemical plant corresponding to the current monitoring period, realizing a comprehensive multi-dimensional analysis of the energy usage of the target chemical plant in different production areas, and providing strong data support for the subsequent energy-saving regulation level.
[0052] 2. The present invention monitors and analyzes the production load of the target chemical plant corresponding to the current monitoring period, thereby obtaining the production load evaluation index of the target chemical plant corresponding to the current monitoring period, which can timely discover abnormal production conditions and avoid energy waste in the production process due to poor production management, thus providing a basis for subsequent energy-saving regulation.
[0053] 3. The present invention monitors and analyzes the equipment load of the target chemical plant corresponding to the current monitoring period, thereby obtaining the equipment load evaluation index of the target chemical plant corresponding to the current monitoring period, which can timely discover abnormal conditions and potential failures of equipment, thereby preventing safety accidents caused by equipment failures, reducing unnecessary energy waste, and improving the production safety of the chemical plant.
[0054] 4. The present invention monitors and analyzes the energy consumption of the target chemical plant after load regulation, thereby judging the energy-saving effect of the load regulation of the target chemical plant, and performing corresponding operations based on the energy-saving effect of the load regulation of the target chemical plant, thereby improving the accuracy and scientificity of the energy-saving effect judgment, providing a clear feedback mechanism for the target chemical plant, facilitating timely adjustment of energy-saving measures, and contributing to continuous optimization of the energy consumption and production efficiency of the chemical plant. BRIEF DESCRIPTION OF THE DRAWINGS
[0055] The present invention will be further described below in conjunction with the accompanying drawings.
[0056] Figure 1 It is a flow chart of the method of the present invention. DETAILED DESCRIPTION
[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0058] See also Figure 1 As shown, the present invention is a load energy-saving management method for a large chemical plant, comprising the following steps:
[0059] Step 1: Energy consumption monitoring: Obtain the production area of the assembly line products in the target chemical plant, and record the production area of the assembly line products in the target chemical plant as the marked area, and monitor and analyze the energy consumption parameters of each marked area of the target chemical plant corresponding to the current monitoring period. The specific execution steps are as follows:
[0060] The power consumption value of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is monitored by the smart meter, and the power consumption value DL of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is obtained. i j , i represents the number of each marked area, i=1,2,...,n, n represents the total number of marked areas, j represents the number of each monitoring time point, j=1,2,....,m; m represents the total number of monitoring time points.
[0061] The water usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is monitored by a water meter, and the water usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is obtained.
[0062] The steam usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is monitored by a steam flow meter, and the steam usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is obtained.
[0063] The fuel flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is monitored by the fuel flow meter, and the fuel flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is obtained.
[0064] It should be noted that the specific fuels are: coal, natural gas, and fuel oil.
[0065] The compressed gas flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is monitored by an orifice flowmeter to obtain the compressed gas flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period.
[0066] The chemical product output of each marked area of the target chemical plant corresponding to the current monitoring period is obtained from the production management background of the target chemical plant, and it is matched with the reference energy consumption parameter set corresponding to each set chemical product output to obtain the reference energy consumption parameter set corresponding to each marked area. At the same time, the reference power consumption value, reference water usage, reference steam usage, reference fuel flow rate and reference compressed gas flow rate corresponding to each marked area are extracted from it, which are recorded as DL i ', SY i ', ZQ i ', RL i ', YT i ';
[0067] According to the formula Calculate the energy consumption evaluation index of the target chemical plant corresponding to the current monitoring period a1, a2, a3, a4, and a5 represent preset weight factors respectively.
[0068] In a specific embodiment, the present invention monitors and analyzes the energy consumption parameters of each marked area of the target chemical plant corresponding to the current monitoring period, thereby obtaining the energy consumption evaluation index of the target chemical plant corresponding to the current monitoring period, thereby realizing a comprehensive multi-dimensional analysis of the energy usage of the target chemical plant in different production areas, and providing strong data support for the subsequent energy-saving regulation level.
[0069] Step 2: Production load monitoring: Monitor and analyze the production load parameters of each marked area of the target chemical plant corresponding to the current monitoring period. The specific execution steps are as follows:
[0070] Obtain the output of chemical products in each marked area of the target chemical plant corresponding to the current monitoring period from the production management background of the target chemical plant, recorded as CL i At the same time, the total raw material consumption corresponding to the output of chemical products in each area of the target chemical plant during the current monitoring period is obtained, which is recorded as HL i , according to the formula Calculate the actual unit consumption value SH of each marked area of the target chemical plant corresponding to the current monitoring period i ;
[0071] Extract the estimated production of each marked area of the target chemical plant corresponding to the monitoring period from the database, obtain the actual period of the current monitoring period, and match the actual period of the current monitoring period with the estimated production impact value corresponding to each set actual period to obtain the estimated production impact value of the current monitoring period;
[0072] Divide the estimated production of each area in the target chemical plant corresponding to the monitoring period by the number of actual time periods in the actual monitoring period to obtain the estimated production of each area in the target chemical plant corresponding to the actual time period in the monitoring period;
[0073] The estimated production of each area in the target chemical plant corresponding to each actual period in the monitoring cycle is subtracted from the estimated production impact value of the current monitoring period to obtain the estimated production of each area in the target chemical plant corresponding to the current monitoring period, which is recorded as YC i , and match it with the estimated raw material consumption corresponding to each estimated output, and obtain the estimated raw material consumption YH of each marked area of the target chemical plant corresponding to the current monitoring period i , according to the formula Calculate the estimated unit consumption value YD for each marked area of the target chemical plant corresponding to the current monitoring period i ;
[0074] According to the formula Calculate the unit consumption evaluation index of the target chemical plant corresponding to the current monitoring period
[0075] The number of qualified products and the number of unqualified products are extracted from the output of chemical products in each marked area of the target chemical plant corresponding to the current monitoring period, and are recorded as HG i , BH i , according to the formula Calculate the production and quality evaluation index of the target chemical plant corresponding to the current monitoring period b1 and b2 represent the set weight factors respectively;
[0076] The process condition parameters of each process stage at each monitoring time point in the current monitoring period corresponding to each marked area of the target chemical plant are obtained, and compared with the reference interval of the process condition parameters of each process stage stored in the database. If the process condition parameters of a process stage at a certain monitoring time point are not in the reference interval of the process condition parameters of the process stage stored in the database, the monitoring time point is recorded as an abnormal time point, and each normal period of each process condition is composed of adjacent normal time points, and each abnormal period of each process condition is composed of adjacent abnormal time points. The normal period of each process condition and the abnormal period of each process condition corresponding to the current monitoring period of each marked area of the target chemical plant are obtained, and the total duration of the normal period of the process condition and the total duration of the abnormal period of the process condition corresponding to the current monitoring period of each marked area of the target chemical plant are counted, which are recorded as ZT respectively. i , YT i ;
[0077] According to the formula Calculate the process adaptation index of each marked area of the target chemical plant corresponding to the current monitoring period b3 and b4 represent the set weight factors respectively;
[0078] According to the formula The production load evaluation index φ of the target chemical plant corresponding to the current monitoring period is calculated, and b5, b6, and b7 are respectively represented as the set evaluation factors.
[0079] In a specific embodiment, the present invention monitors and analyzes the production load of the target chemical plant corresponding to the current monitoring period, thereby obtaining a production load evaluation index of the target chemical plant corresponding to the current monitoring period, which can timely discover abnormal production conditions and avoid energy waste in the production process due to poor production management, thereby providing a basis for subsequent energy-saving regulation.
[0080] Step 3: Equipment load monitoring: Monitor and analyze the equipment load parameters of the target chemical plant corresponding to the current monitoring period. The specific execution steps are as follows:
[0081] Obtain the chemical equipment in each marked area of the target chemical plant, and integrate and number them to obtain each chemical equipment in the target chemical plant;
[0082] It should be noted that chemical equipment specifically includes: reaction equipment, separation equipment, heat exchange equipment, storage equipment, transportation equipment and auxiliary equipment. Reaction equipment includes but is not limited to reactors and tubular reactors. Separation equipment includes but is not limited to distillation towers, filters, centrifuges. Heat exchange equipment includes but is not limited to heat exchangers and condensers. Storage equipment includes but is not limited to storage tanks and silos. Transportation equipment includes but is not limited to pumps, compressors, and conveyors. Auxiliary equipment includes but is not limited to drying equipment, crushing equipment, and instrumentation equipment.
[0083] Obtain the historical work records of each chemical equipment in the target chemical plant, and obtain the continuous working time of each chemical equipment corresponding to each historical work from them, calculate the average value, and obtain the average continuous working time corresponding to each chemical equipment, recorded as T f , f represents the serial number of each chemical equipment, f = 1, 2, ..., g, g represents the total number of chemical equipment; at the same time, the corresponding service life X of each chemical equipment is obtained f At the same time, the interval duration of each interval in the historical work of each chemical equipment is obtained, and the average value is calculated to obtain the average interval duration corresponding to each chemical equipment, which is recorded as M f ;
[0084] It should be noted that the interval duration of each interval in the historical work corresponding to each chemical equipment is specifically: the time period between the end time point of each historical work corresponding to each chemical equipment and the start time point of the next historical work is called the interval period, that is, the interval duration between the end time point of each historical work corresponding to each chemical equipment and the start time point of the next historical work is called the interval duration;
[0085] According to the formula Calculate the work impact index σ1 corresponding to each chemical equipment f , c1, c2, c3 represent preset exponential factors respectively;
[0086] The corresponding surface images of each chemical equipment in the target chemical plant are collected by intelligent cameras, and the corresponding surface images of each chemical equipment are obtained, from which the corresponding wear quantity, wear area, corrosion quantity, and corrosion area of each chemical equipment are obtained, which are recorded as MN f ,MS f 、FN f , FS f ;
[0087] The power sensor is used to detect the power of each chemical equipment in the target chemical plant at each working time point in the current monitoring period, and the power of each chemical equipment at each working time point in the current monitoring period is obtained. The average power of each chemical equipment corresponding to the current monitoring period is calculated, and the average power of each chemical equipment corresponding to the current monitoring period is obtained as the working power P of each chemical equipment corresponding to the current monitoring period.f ;
[0088] The current sensor is used to detect the current of each chemical equipment in the target chemical plant at each working time point in the current monitoring period, and the current of each chemical equipment at each working time point in the current monitoring period is obtained. The average current of each chemical equipment corresponding to the current monitoring period is calculated, and the average current of each chemical equipment corresponding to the current monitoring period is obtained as the working current I of each chemical equipment corresponding to the current monitoring period. f ;
[0089] The temperature of each chemical equipment in the target chemical plant at each working time point in the current monitoring period is detected by the temperature sensor, and the temperature of each chemical equipment at each working time point in the current monitoring period is obtained. The average temperature of each chemical equipment in the current monitoring period is calculated, and the average temperature of each chemical equipment in the current monitoring period is obtained as the working temperature W of each chemical equipment in the current monitoring period. f ;
[0090] The working impact index corresponding to each chemical equipment is matched with the working impact index threshold corresponding to each working impact level, and the working impact level corresponding to each chemical equipment is obtained. The working impact level is matched with the reference working state parameter set corresponding to each working impact level, and the reference working state parameter set corresponding to each chemical equipment is obtained. At the same time, the reference wear quantity, reference wear area, reference corrosion quantity, reference corrosion area, reference working power, reference working current, and reference working temperature of each chemical equipment corresponding to the working state are extracted, which are respectively recorded as MN f ',MS f '、FN f ', FS f '、P f '、I f ', W f ';
[0091] According to the formula Calculate the aging status assessment index corresponding to each chemical equipment c4, c5, c6, and c7 represent preset exponential factors respectively;
[0092] According to the formula Calculate the working status evaluation index of each chemical equipment corresponding to the current monitoring period e represents a natural constant, c8, c9, and c10 represent preset exponential factors respectively;
[0093] According to the formula The equipment load evaluation index η of the target chemical plant corresponding to the current monitoring period is calculated, and d1, d2, and d3 are respectively represented as the set evaluation factors.
[0094] In a specific embodiment, the present invention monitors and analyzes the equipment load of the target chemical plant corresponding to the current monitoring period, thereby obtaining an equipment load evaluation index of the target chemical plant corresponding to the current monitoring period, which can timely discover abnormal conditions and potential failures of equipment, thereby preventing safety accidents caused by equipment failures, reducing unnecessary energy waste, and improving the production safety of the chemical plant.
[0095] Step 4. Load energy saving assessment: Analyze the first-level assessment coefficient of the target chemical plant corresponding to the current monitoring period based on the energy consumption assessment index, production load assessment index, and equipment load assessment index of the target chemical plant corresponding to the current monitoring period, and analyze the energy-saving control level of the target chemical plant corresponding to the current monitoring period based on the first-level assessment coefficient of the target chemical plant corresponding to the current monitoring period, and make corresponding adjustments to the target chemical plant.
[0096] Preferably, the energy-saving control level corresponding to the current monitoring period of the target chemical plant is analyzed, and the specific analysis method is as follows:
[0097] According to the formula Calculate the first-level evaluation coefficient ξ of the target chemical plant corresponding to the current monitoring period, where w1, w2, and w3 are respectively represented as preset weight factors;
[0098] The first-level evaluation index of the target chemical plant corresponding to the current monitoring period is matched with the first-level evaluation coefficient threshold corresponding to each preset energy-saving control level to obtain the energy-saving control level of the target chemical plant corresponding to the current monitoring period;
[0099] The energy-saving control level of the target chemical plant corresponding to the current monitoring period is matched with the energy-saving measures corresponding to each set energy-saving control level to obtain the energy-saving measures of the target chemical plant corresponding to the current monitoring period, and the energy-saving measures of the target chemical plant are implemented based on the energy-saving measures of the target chemical plant corresponding to the current monitoring period.
[0100] Step 5: Energy saving effect analysis: The current monitoring time point after the load regulation of the target chemical plant is used as the monitoring time point after the corresponding regulation of the target chemical plant, and the energy consumption of the target chemical plant at the corresponding monitoring time point after the regulation is monitored and analyzed, specifically:
[0101] The power consumption value of each marked area of the target chemical plant at the monitoring time point after regulation is monitored by the smart meter, and the power consumption value dl of each marked area of the target chemical plant at the monitoring time point after regulation is obtained. i ,
[0102] The water usage of each marked area of the target chemical plant at the corresponding monitoring time point after regulation is monitored by the water meter, and the water usage sy of each marked area of the target chemical plant at the corresponding monitoring time point after regulation is obtained. i ;
[0103] The steam usage of each marked area of the target chemical plant at the monitoring time point after regulation is monitored by a steam flow meter, and the steam usage of each marked area of the target chemical plant at the monitoring time point after regulation is obtained. i ;
[0104] The fuel flow rate of each marked area of the target chemical plant at the corresponding monitoring time point after regulation is monitored by the fuel flow meter, and the fuel flow rate rl of each marked area of the target chemical plant at the corresponding monitoring time point after regulation is obtained. i ;
[0105] The compressed gas flow rate yt of each marked area of the target chemical plant at the monitoring time point after regulation is monitored by an orifice flowmeter, and the compressed gas flow rate yt of each marked area of the target chemical plant at the monitoring time point after regulation is obtained. i ;
[0106] The chemical product output of each marked area of the target chemical plant at the monitoring time point after regulation is obtained from the production management background of the target chemical plant, and it is matched with the reference energy consumption parameter set corresponding to each set chemical product output to obtain the reference energy consumption parameter set corresponding to each marked area. At the same time, the reference power consumption value, reference water usage, reference steam usage, reference fuel flow rate and reference compressed gas flow rate corresponding to each marked area are extracted from it, which are recorded as dl i ',sy i '、zq i ', rl i ', yt i ';
[0107] According to the formula The energy consumption evaluation index κ of the target chemical plant corresponding to the post-regulation monitoring time point is calculated, and p1, p2, p3, p4, and p5 are respectively represented as preset weight factors.
[0108] The energy-saving effect of the target chemical plant after load regulation is thus determined as follows:
[0109] The energy consumption evaluation index of the target chemical plant at the monitoring time point after regulation is compared with the reference energy consumption evaluation index threshold after regulation stored in the database. If the energy consumption evaluation index of the target chemical plant at the monitoring time point after regulation is less than the reference energy consumption evaluation index threshold after regulation, the energy-saving effect of the target chemical plant after load regulation is judged to be excellent; otherwise, the energy-saving effect of the target chemical plant after load regulation is judged to be poor.
[0110] In a specific embodiment, the present invention monitors and analyzes the energy consumption of the target chemical plant after load regulation, thereby judging the energy-saving effect of the load regulation of the target chemical plant, and performing corresponding operations based on the energy-saving effect of the load regulation of the target chemical plant, thereby improving the accuracy and scientificity of the energy-saving effect judgment, providing a clear feedback mechanism for the target chemical plant, facilitating timely adjustment of energy-saving measures, and contributing to continuous optimization of the energy consumption and production efficiency of the chemical plant.
[0111] Step six, energy-saving effect execution: perform corresponding operations based on the energy-saving effect of the target chemical plant after load regulation. If the energy-saving effect of the target chemical plant after load regulation is excellent, start the display to display the energy-saving effect of the target chemical plant after load regulation. If the energy-saving effect of the target chemical plant after load regulation is poor, start the early warning device to warn of the energy-saving effect of the target chemical plant after load regulation.
[0112] In a specific embodiment, if the energy-saving effect of the target chemical plant after load regulation is not good, the energy-saving regulation level of the target chemical plant corresponding to the load of the current monitoring period is identified. When the energy-saving regulation level of the target chemical plant corresponding to the load of the current monitoring period is not the maximum regulation level, the energy-saving regulation level of the target chemical plant corresponding to the current monitoring corresponding load is adjusted to the maximum regulation level, and at the same time, an early warning is issued for the energy-saving effect of the target chemical plant after load regulation through an early warning device;
[0113] When the energy-saving control level of the target chemical plant corresponding to the load in the current monitoring period is the maximum control level, the early warning device is directly started to warn of the energy-saving effect of the target chemical plant after load control.
[0114] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.
Claims
1. A load energy-saving management method for a large chemical plant, characterized in that: The following steps are involved: Step 1: Energy consumption monitoring: Obtain the production area of the assembly line products in the target chemical plant, and record the production area of the assembly line products in the target chemical plant as the marked area, monitor and analyze the energy consumption parameters of each marked area of the target chemical plant corresponding to the current monitoring period, and obtain the energy consumption evaluation index of the target chemical plant corresponding to the current monitoring period; Step 2: Production load monitoring: Monitor and analyze the production load parameters of each marked area of the target chemical plant corresponding to the current monitoring period, and obtain the production load evaluation index of the target chemical plant corresponding to the current monitoring period; Step 3, equipment load monitoring: monitor and analyze the equipment load parameters of the target chemical plant corresponding to the current monitoring period, and obtain the equipment load evaluation index of the target chemical plant corresponding to the current monitoring period; Step 4: Load energy saving assessment: Analyze the primary assessment coefficient of the target chemical plant corresponding to the current monitoring period based on the energy consumption assessment index, production load assessment index, and equipment load assessment index of the target chemical plant corresponding to the current monitoring period, and analyze the energy saving control level of the target chemical plant corresponding to the current monitoring period based on the primary assessment coefficient of the target chemical plant corresponding to the current monitoring period, and adjust the target chemical plant accordingly; Step 5, energy-saving effect analysis: the current monitoring time point after the load regulation of the target chemical plant is used as the monitoring time point after the corresponding regulation of the target chemical plant, and the energy consumption of the target chemical plant at the corresponding monitoring time point after the regulation is monitored and analyzed, and the energy consumption evaluation index of the target chemical plant at the corresponding monitoring time point after the regulation is obtained, and the energy-saving effect of the target chemical plant after the load regulation is judged, and the energy-saving effect of the target chemical plant after the load regulation is obtained; Step six, energy-saving effect execution: perform corresponding operations based on the energy-saving effect of the target chemical plant after load regulation. If the energy-saving effect of the target chemical plant after load regulation is excellent, start the display to display the energy-saving effect of the target chemical plant after load regulation. If the energy-saving effect of the target chemical plant after load regulation is poor, start the early warning device to warn of the energy-saving effect of the target chemical plant after load regulation.
2. The load energy-saving management method for a large chemical plant according to claim 1, characterized in that: The monitoring and analysis of the energy consumption parameters of each marked area of the target chemical plant corresponding to the current monitoring period is specifically performed in the following steps: The power consumption values of each marked area of the target chemical plant at each monitoring time point in the current monitoring period are monitored by smart meters, and the power consumption values of each marked area of the target chemical plant at each monitoring time point in the current monitoring period are obtained. i represents the number of each marked area, i=1,2,...,n, j represents the number of each monitoring time point, j=1,2,....,m; The water usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is monitored by a water meter, and the water usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is obtained. The steam usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is monitored by a steam flow meter, and the steam usage of each marked area of the target chemical plant at each monitoring time point in the current monitoring period is obtained. The fuel flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is monitored by the fuel flow meter, and the fuel flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is obtained. The compressed gas flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period is monitored by an orifice flowmeter to obtain the compressed gas flow rate of each marked area of the target chemical plant corresponding to each monitoring time point in the current monitoring period. The chemical product output of each marked area of the target chemical plant corresponding to the current monitoring period is obtained from the production management background of the target chemical plant, and it is matched with the reference energy consumption parameter set corresponding to each set chemical product output to obtain the reference energy consumption parameter set corresponding to each marked area. At the same time, the reference power consumption value, reference water usage, reference steam usage, reference fuel flow rate and reference compressed gas flow rate corresponding to each marked area are extracted from it, which are recorded as DL i ', SY i ', ZQ i ', RL i ', YT i '; Calculate the energy consumption evaluation index of the target chemical plant corresponding to the current monitoring period a1, a2, a3, a4, and a5 represent preset weight factors respectively.
3. The load energy-saving management method for a large chemical plant according to claim 1, characterized in that: The specific steps of monitoring and analyzing the production load parameters of each marked area of the target chemical plant corresponding to the current monitoring period are as follows: Obtain the output of chemical products in each marked area of the target chemical plant corresponding to the current monitoring period from the production management background of the target chemical plant, recorded as CL i At the same time, the total raw material consumption corresponding to the output of chemical products in each area of the target chemical plant during the current monitoring period is obtained, which is recorded as HL i , according to the formula Calculate the actual unit consumption value SH of each marked area of the target chemical plant corresponding to the current monitoring period i ; Extract the estimated production of each marked area of the target chemical plant corresponding to the monitoring period from the database, obtain the actual period of the current monitoring period, and match the actual period of the current monitoring period with the estimated production impact value corresponding to each set actual period to obtain the estimated production impact value of the current monitoring period; Divide the estimated production of each area in the target chemical plant corresponding to the monitoring period by the number of actual time periods in the actual monitoring period to obtain the estimated production of each area in the target chemical plant corresponding to the actual time period in the monitoring period; The estimated production of each area in the target chemical plant corresponding to each actual period in the monitoring cycle is subtracted from the estimated production impact value of the current monitoring period to obtain the estimated production of each area in the target chemical plant corresponding to the current monitoring period, which is recorded as YC i , and match it with the estimated raw material consumption corresponding to each estimated output, and obtain the estimated raw material consumption YH of each marked area of the target chemical plant corresponding to the current monitoring period i , according to the formula Calculate the estimated unit consumption value YD for each marked area of the target chemical plant corresponding to the current monitoring period i ; According to the formula Calculate the unit consumption evaluation index of the target chemical plant corresponding to the current monitoring period The number of qualified products and the number of unqualified products are extracted from the output of chemical products in each marked area of the target chemical plant corresponding to the current monitoring period, and are recorded as HG i , BH i , according to the formula Calculate the production and quality evaluation index of the target chemical plant corresponding to the current monitoring period b1 and b2 represent the set weight factors respectively; The process condition parameters of each process stage at each monitoring time point in the current monitoring period corresponding to each marked area of the target chemical plant are obtained, and compared with the reference interval of the process condition parameters of each process stage stored in the database. If the process condition parameters of a process stage at a certain monitoring time point are not in the reference interval of the process condition parameters of the process stage stored in the database, the monitoring time point is recorded as an abnormal time point, and each normal period of each process condition is composed of adjacent normal time points, and each abnormal period of each process condition is composed of adjacent abnormal time points. The normal period of each process condition and the abnormal period of each process condition corresponding to the current monitoring period of each marked area of the target chemical plant are obtained, and the total duration of the normal period of the process condition and the total duration of the abnormal period of the process condition corresponding to the current monitoring period of each marked area of the target chemical plant are counted, which are recorded as ZT respectively. i , YT i ; According to the formula Calculate the process adaptation index of each marked area of the target chemical plant corresponding to the current monitoring period b3 and b4 represent the set weight factors respectively; According to the formula The production load evaluation index φ of the target chemical plant corresponding to the current monitoring period is calculated, and b5, b6, and b7 are respectively represented as the set evaluation factors.
4. The load energy-saving management method for a large chemical plant according to claim 1, characterized in that: The specific steps of monitoring and analyzing the equipment load parameters of each area of the target chemical plant corresponding to the current monitoring period are as follows: Obtain the chemical equipment in each marked area of the target chemical plant, and integrate and number them to obtain each chemical equipment in the target chemical plant; Obtain the historical work records of each chemical equipment in the target chemical plant, and obtain the continuous working time of each chemical equipment corresponding to each historical work from them, calculate the average value, and obtain the average continuous working time corresponding to each chemical equipment, recorded as T f , f represents the serial number of each chemical equipment, f = 1, 2, ..., g, and the corresponding service life X of each chemical equipment is obtained at the same time f At the same time, the interval duration of each interval in the historical work of each chemical equipment is obtained, and the average value is calculated to obtain the average interval duration corresponding to each chemical equipment, which is recorded as M f ; According to the formula Calculate the work impact index corresponding to each chemical equipment c1, c2, and c3 represent preset exponential factors respectively; The corresponding surface images of each chemical equipment in the target chemical plant are collected by intelligent cameras, and the corresponding surface images of each chemical equipment are obtained, from which the corresponding wear quantity, wear area, corrosion quantity, and corrosion area of each chemical equipment are obtained, which are recorded as MN f ,MS f 、FN f , FS f ; The power sensor is used to detect the power of each chemical equipment in the target chemical plant at each working time point in the current monitoring period, and the power of each chemical equipment at each working time point in the current monitoring period is obtained. The average power of each chemical equipment corresponding to the current monitoring period is calculated, and the average power of each chemical equipment corresponding to the current monitoring period is obtained as the working power P of each chemical equipment corresponding to the current monitoring period. f ; The current sensor is used to detect the current of each chemical equipment in the target chemical plant at each working time point in the current monitoring period, and the current of each chemical equipment at each working time point in the current monitoring period is obtained. The average current of each chemical equipment corresponding to the current monitoring period is calculated, and the average current of each chemical equipment corresponding to the current monitoring period is obtained as the working current I of each chemical equipment corresponding to the current monitoring period. f ; The temperature of each chemical equipment in the target chemical plant at each working time point in the current monitoring period is detected by the temperature sensor, and the temperature of each chemical equipment at each working time point in the current monitoring period is obtained. The average temperature of each chemical equipment in the current monitoring period is calculated, and the average temperature of each chemical equipment in the current monitoring period is obtained as the working temperature W of each chemical equipment in the current monitoring period. f ; The working impact index corresponding to each chemical equipment is matched with the working impact index threshold corresponding to each working impact level, and the working impact level corresponding to each chemical equipment is obtained. The working impact level is matched with the reference working state parameter set corresponding to each working impact level, and the reference working state parameter set corresponding to each chemical equipment is obtained. At the same time, the reference wear quantity, reference wear area, reference corrosion quantity, reference corrosion area, reference working power, reference working current, and reference working temperature of each chemical equipment corresponding to the working state are extracted, which are respectively recorded as MN f ',MS f '、FN f ', FS f '、P f '、I f ', W f '; According to the formula Calculate the aging status assessment index corresponding to each chemical equipment c4, c5, c6, and c7 represent preset exponential factors respectively; According to the formula Calculate the working status evaluation index of each chemical equipment corresponding to the current monitoring period e represents a natural constant, c8, c9, and c10 represent preset exponential factors respectively; According to the formula The equipment load evaluation index η of the target chemical plant corresponding to the current monitoring period is calculated, and d1, d2, and d3 are respectively represented as the set evaluation factors.
5. The load energy-saving management method for a large chemical plant according to claim 1, characterized in that: The energy-saving control level corresponding to the current monitoring period of the target chemical plant is analyzed in the following specific analysis methods: According to the formula Calculate the first-level evaluation coefficient ξ of the target chemical plant corresponding to the current monitoring period, where w1, w2, and w3 are respectively represented as preset weight factors; The first-level evaluation coefficient of the target chemical plant corresponding to the current monitoring period is matched with the preset first-level evaluation coefficient thresholds corresponding to each energy-saving control level to obtain the energy-saving control level of the target chemical plant corresponding to the current monitoring period; The energy-saving control level of the target chemical plant corresponding to the current monitoring period is matched with the energy-saving measures corresponding to each set energy-saving control level to obtain the energy-saving measures of the target chemical plant corresponding to the current monitoring period, and the energy-saving measures of the target chemical plant are implemented based on the energy-saving measures of the target chemical plant corresponding to the current monitoring period.
6. The load energy-saving management method for a large chemical plant according to claim 1, characterized in that: The energy-saving effect of the target chemical plant after load regulation is determined as follows: The energy consumption of the target chemical plant at the monitoring time point after the regulation is monitored and analyzed in the same analysis method as the energy consumption evaluation index of the target chemical plant at the current monitoring period, so as to obtain the energy consumption evaluation index of the target chemical plant at the monitoring time point after the regulation; The energy consumption evaluation index of the target chemical plant at the monitoring time point after regulation is compared with the reference energy consumption evaluation index threshold after regulation stored in the database. If the energy consumption evaluation index of the target chemical plant at the monitoring time point after regulation is less than the reference energy consumption evaluation index threshold after regulation, the energy-saving effect of the target chemical plant after load regulation is judged to be excellent; otherwise, the energy-saving effect of the target chemical plant after load regulation is judged to be poor.