Bar production line power consumption calculation method, system and equipment and storage medium

Abstract

The invention relates to the field of industrial production power consumption calculation, and discloses a bar production line power consumption calculation method, system and device and a storage medium, and the method comprises the steps: obtaining the power data of a bar production line and the production data of the bar production line; based on the production data, the rolling batch starting time and the rolling batch ending time of each rolling batch time period of the bar production line and the starting time and the stopping time of the bar production line are recognized; based on the electric power data, the production data, the rolling batch starting time and the rolling batch ending time, the power consumption per ton of steel in each rolling batch time period is calculated; calculating the power consumption of production equipment in each rolling batch time period based on the power data, the starting time and the stopping time; and generating a power consumption result of the bar production line based on the production data, and / or the power consumption per ton of steel, and / or the power consumption of the production equipment. According to the method provided by the embodiment of the invention, the power consumption of the electric equipment on the bar production line and the power consumption for rolling the bar can be accurately calculated.

Description

Technical Field

[0001] The present invention relates to the field of industrial production power consumption calculation, and in particular to a power consumption calculation method, system, equipment and storage medium for a bar production line. Background Art

[0002] During bar production, electricity costs are a major factor. The industry is committed to energy-saving management of bar production lines to reduce production costs. Existing technology typically calculates power consumption by installing an electric meter on the main power supply line. However, this method only records and calculates the overall power consumption of the bar production line.

[0003] Since the power consumption varies when producing bars of different steel grades and specifications, and during the production process, the bar production line may experience planned shutdowns such as roll changing and unplanned shutdowns such as steel piling and equipment failure, this method cannot accurately calculate the power consumption of each production equipment and the power consumption used for rolling bars, and it is also impossible to carry out targeted power saving management based on the power consumption of each process in the bar production line. Summary of the Invention

[0004] Embodiments of the present invention provide a method, system, device, and storage medium for calculating power consumption of a bar production line, which can accurately calculate the power consumption of the electrical equipment on the bar production line itself and the power consumption used for rolling the bars.

[0005] In a first aspect, an embodiment of the present invention provides a method for calculating the power consumption of a bar production line. The bar production line rolls bars in batches according to multiple rolling batch time periods. The method for calculating the power consumption of the bar production line includes: acquiring the power data and production data of the bar production line; based on the production data, identifying the rolling batch start time and the rolling batch end time of each rolling batch time period of the bar production line, as well as the start time and the shutdown time of the bar production line; based on the power data, the production data, the rolling batch start time and the rolling batch end time, calculating the power consumption per ton of steel in each rolling batch time period; based on the power data, the startup time and the shutdown time, calculating the power consumption of the production equipment in each rolling batch time period; based on the production data, and / or the power consumption per ton of steel, and / or the power consumption of the production equipment, generating the power consumption result of the bar production line.

[0006] The power consumption calculation method for a bar production line provided in an embodiment of the present invention can accurately calculate the power consumption of bars in different rolling batches and the power consumption of production equipment based on the power data and production data of the bar production line, obtain the power consumption results of the bar production line, and then realize the refined management of the power consumption of each production equipment and bars of different specifications in the bar production line based on the power consumption results.

[0007] Optionally, the step of identifying the rolling start time of each rolling time period includes: obtaining the rolling type change instruction of the bar production line based on production data; when the rolling type change instruction is obtained, and / or when the bar production line is at the moment when rolling of the previous rolling time period ends, and / or when the bar production line is at a preset time point, using the moment as the rolling start time of the next rolling time period.

[0008] Optionally, the step of identifying the rolling batch end time of each rolling batch time period includes: based on production data, obtaining the production status of the bar production line and the rolling type change instruction of the bar production line, the production status including whether the bar production line is in the on state or the shut down state; when the bar production line changes from the on state to the shut down state, and / or when the rolling type change instruction is obtained, and / or when the bar production line is at the end of rolling in the current rolling batch time period, and / or when the bar production line is in the on state and the bar production line is at a preset time point, the moment is used as the rolling batch end time of the current rolling batch time period.

[0009] Optionally, the step of identifying the start-up time of the bar production line includes: based on production data, obtaining the production status of the bar production line and the rolling type change instruction of the bar production line, the production status includes whether the bar production line is in the start-up state or the stop state; when the bar production line is in the stop state and the rolling type change instruction is obtained, the moment is used as the start-up time.

[0010] Optionally, the step of identifying the downtime of the bar production line includes: based on production data, obtaining the production status of the bar production line, the production status includes whether the bar production line is in the on state or the off state; when the bar production line changes from the on state to the off state, the moment is used as the downtime.

[0011] Optionally, the step of calculating the electricity consumption per ton of steel in each rolling batch time period includes: based on production data, obtaining the output of bars rolled in each rolling batch time period of the bar production line and the production status of the bar production line, the production status including whether the bar production line is in the on state or the off state; based on power data, the rolling batch start time and the rolling batch end time, obtaining the power consumption of each rolling batch time period of the bar production line in the on state; based on the output of bars rolled in each rolling batch time period and the power consumption of each rolling batch time period, calculating the electricity consumption per ton of steel in each rolling batch time period.

[0012] Optionally, the step of calculating the power consumption of production equipment for each rolling batch time period includes: based on production data, obtaining the production status of the bar production line, the production status includes whether the bar production line is in the on state or the off state; based on power data, on time and off time, calculating the power consumption of production equipment for each rolling batch time period of the bar production line in the off state.

[0013] Optionally, the method for calculating power consumption of the bar production line further includes: calculating the average active power per unit time of each rolling batch time period based on the startup power consumption.

[0014] Optionally, the step of generating the power consumption results of the bar production line based on production data, and / or power consumption per ton of steel, and / or power consumption of production equipment includes: based on production data, obtaining the rolling type, rolling specification, and rolling output of the bar in each rolling batch time period; based on the rolling output, rolling type, rolling specification, and power consumption per ton of steel in each rolling batch time period, calculating the power consumption per ton of steel for bars of different rolling types and different rolling specifications; based on the power consumption per ton of steel, and / or average active power, and / or power consumption of production equipment, generating the power consumption results of the bar production line.

[0015] Optionally, the power data includes the loop power supply parameters of each rolling batch time period of the bar production line, and the production data includes the production status, rolling type, rolling specifications, and rolling output of each rolling batch time period of the bar production line. The production status includes whether the bar production line is in the on state or the off state.

[0016] In a second aspect, an embodiment of the present invention provides a power consumption calculation system for a bar production line, wherein the bar production line rolls bars in batches according to multiple rolling batch time periods. The power consumption calculation system for the bar production line includes: a data acquisition module for acquiring power data and production data of the bar production line; a data processing module for identifying the rolling batch start time and rolling batch end time of each rolling batch time period of the bar production line, as well as the start-up time and shutdown time of the bar production line based on the production data; calculating the power consumption per ton of steel in each rolling batch time period based on the power data, production data, the rolling batch start time and the rolling batch end time; calculating the power consumption of production equipment in each rolling batch time period based on the power data, the start time and the shutdown time; and generating the power consumption results of the bar production line based on the production data, and / or the power consumption per ton of steel, and / or the power consumption of production equipment.

[0017] The power consumption calculation system for the bar production line provided in the embodiment of the present invention can accurately calculate the power consumption of bars in different rolling batches and the power consumption of production equipment based on the power data and production data of the bar production line, obtain the power consumption results of the bar production line, and then realize the refined management of the power consumption of each production equipment and bars of different specifications in the bar production line based on the power consumption results.

[0018] Optionally, the power consumption calculation system of the bar production line also includes: a data storage module, which is communicatively connected to the data processing module, and the data storage module is used to store power data, and / or production data power consumption per ton of steel, and / or power consumption of production equipment, and / or power consumption results.

[0019] Optionally, the power consumption calculation system for the bar production line further includes: a data display module, the data display module is communicatively connected to the data storage module, and the data display module is used to display the power consumption results.

[0020] In a third aspect, an embodiment of the present invention provides a device for calculating the power consumption of a bar production line, comprising: a processor and a memory, wherein instructions are stored in the memory; the processor calls the instructions in the memory so that the processor executes the method for calculating the power consumption of a bar production line of any of the aforementioned embodiments of the first aspect of the present invention.

[0021] The processor of the power consumption calculation device for the bar production line provided by the embodiment of the present invention executes the power consumption calculation method for the bar production line of any of the aforementioned embodiments of the first aspect of the present invention by calling the instructions in the memory. It can accurately calculate the power consumption of bars of different rolling batches and the power consumption of production equipment based on the power data and production data of the bar production line, obtain the power consumption results of the bar production line, and then realize the refined management of the power consumption of each production equipment and bars of different specifications in the bar production line based on the power consumption results.

[0022] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed by a processor, the method for calculating the power consumption of a bar production line according to any of the aforementioned embodiments of the first aspect of the present invention is implemented.

[0023] The instructions stored in the computer-readable storage medium provided in the embodiment of the present invention can be called by the processor and execute the power consumption calculation method of the bar production line of any of the aforementioned embodiments of the first aspect of the present invention. According to the power data and production data of the bar production line, the power consumption of bars in different rolling batches and the power consumption of production equipment are accurately calculated to obtain the power consumption results of the bar production line, and then, according to the power consumption results, the refined management of the power consumption of each production equipment and bars of different specifications in the bar production line is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 This is a flow chart of an embodiment of a method for calculating power consumption of a bar production line according to the present invention;

[0026] Figure 2This is a flow chart of calculating the rolling batch start time in step S120 in one embodiment of the method for calculating power consumption of a bar production line of the present invention;

[0027] Figure 3 This is a flow chart of calculating the rolling batch end time in step S120 in one embodiment of the method for calculating power consumption of a bar production line of the present invention;

[0028] Figure 4 This is a flow chart of calculating the startup time of step S120 in one embodiment of the method for calculating power consumption of a bar production line of the present invention;

[0029] Figure 5 This is a flow chart of calculating downtime in step S120 of an embodiment of a method for calculating power consumption of a bar production line according to the present invention;

[0030] Figure 6 This is a flow chart of step S130 in one embodiment of the method for calculating power consumption of a bar production line of the present invention;

[0031] Figure 7 This is a flow chart of step S140 in one embodiment of the method for calculating power consumption of a bar production line of the present invention;

[0032] Figure 8 This is a flow chart of step S150 in one embodiment of the method for calculating power consumption of a bar production line of the present invention;

[0033] Figure 9 This is a structural block diagram of an embodiment of the power consumption calculation system for a bar production line of the present invention;

[0034] Figure 10 This is a flow chart of an embodiment of the power consumption calculation system for a bar production line of the present invention;

[0035] Figure 11 This is a schematic structural diagram of an embodiment of a power consumption calculation system for a bar production line according to the present invention;

[0036] Figure 12 This is a structural block diagram of an embodiment of the power consumption calculation device for a bar production line of the present invention.

[0037] Description of Figure Numbers:

[0038] 210-data acquisition module; 220-data processing module; 230-data storage module; 240-data display module;

[0039] 301 - processor; 302 - memory; 303 - communication interface; 304 - bus. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] For ease of understanding, the following describes a method for calculating power consumption of a bar production line according to an embodiment of the present invention. Figure 1 As shown, in the power consumption calculation method of the bar production line in an embodiment of the present invention, when producing bars, the bar production line rolls the bars in batches according to multiple rolling time periods. The power consumption calculation method of the bar production line in an embodiment of the present invention includes steps S110 to S140.

[0044] In this embodiment, to accurately measure the power consumption of a bar production line during bar rolling, a "rolling batch" is used to calculate the power consumption and power load of the bar production line during production. A "rolling batch" refers to the continuous rolling of billets of the same steel grade and specification into bars over a predetermined period of time. The bars of the same steel grade and specification rolled during this period are considered a rolling batch.

[0045] After a preset time period, if the steel grade and specification of the bars rolled in the next preset time period are different, they are classified as bars for the next rolling batch. If the steel grade and specification of the bars rolled in the next preset time period are the same, they are also classified as bars for the next rolling batch. That is, the "rolling batch" in this application is different from the production batch in the production plan. It has a smaller time range, and a production batch can have multiple rolling batches.

[0046] In step S110 , power data and production data of the bar production line are acquired.

[0047] In this embodiment, the power data includes the loop power supply parameters of each rolling batch time period of the bar production line, and the production data includes the production status, rolling type, rolling specifications, and rolling output of each rolling batch time period of the bar production line. The production status includes whether the bar production line is in the on state or the off state.

[0048] Specifically, the loop power supply parameters of each rolling batch time period of the bar production line include the number of power supply circuits without metered electricity meters, the number of power supply circuits with metered electricity meters, the active power parameters of each power supply circuit, the electricity meter base number of each power supply circuit at the beginning of each rolling batch time period, the electricity meter base number of each power supply circuit at the end of each rolling batch time period, the scaling factor of the active power of each power supply circuit, the offset of the active power of each power supply circuit, the scaling factor of the electricity quantity of each power supply circuit, and the offset of the electricity quantity of each power supply circuit.

[0049] The rolling type in the production data is the steel type of the bars rolled in each rolling batch time period, the rolling specification is the bar specification rolled in each rolling batch time period, and the rolling output is the bar output rolled in each rolling batch time period.

[0050] Since the measurement units or names of the production data generated by different bar production lines may be different, after collecting the production data, before starting to identify the rolling batch start time and rolling batch end time of each rolling batch time period, the production data should be standardized first, and the measurement units and data formats of the production data should be uniformly defined to facilitate subsequent data processing.

[0051] In step S120, based on the production data, the rolling batch start time and the rolling batch end time of each rolling batch time period of the bar production line, as well as the start time and the stop time of the bar production line are identified.

[0052] In some optional embodiments, such as Figure 2 As shown, the step of identifying the rolling batch start time of each rolling batch time period in step S120 includes steps S121A to S122A.

[0053] In step S121A, based on the production data, a rolling type change instruction for the bar production line is obtained.

[0054] In step S122A, when the rolling type change instruction is obtained, and / or when the bar production line is at the end of rolling in the previous rolling time period, and / or when the bar production line is at a preset time point, the moment is used as the rolling start time of the next rolling time period.

[0055] In this embodiment, the rolling type change instruction indicates that the steel type and / or specification of the bars to be rolled by the bar production line has changed. If the bar production line receives the rolling type change instruction, it proves that the bar production line is about to start a new rolling batch, so this moment is used as the rolling batch start time of the next rolling batch time period.

[0056] If the bar production line is in a shutdown state, a rolling type change instruction is sent to it. After receiving the rolling type change instruction, the bar production line switches from a shutdown state to a startup state and starts a new rolling batch. Therefore, this moment is used as the rolling batch start time of the next rolling batch time period.

[0057] In an embodiment of the present application, 24 hours is used as a cycle, and one or more preset time points are set within the 24 hours of each day as shift change time points. If the bar production line is in the on state, when it is detected at the preset time point during the production process, the current rolling batch time period is ended and the next new rolling batch time period is started, and this moment is used as the rolling batch start time of the next rolling batch time period.

[0058] At the end of a cycle, for example at midnight of the day, the current rolling batch time period ends and the previous cycle ends, the next cycle begins and the next new rolling batch time period begins, and this moment is used as the rolling batch start time of the next rolling batch time period.

[0059] That is, in the bar production line of this application, during the production process, when the steel type and / or specification of the bars to be rolled changes, the current rolling batch time period ends and the next rolling batch time period begins. When the shift change time point is reached and the steel type and / or specification of the bars to be rolled changes, or when only the shift change time point is reached, the current rolling batch time period also ends and the next rolling batch time period begins.

[0060] In some optional embodiments, such as Figure 3 As shown, the step of identifying the rolling batch end time of each rolling batch time period in step S120 includes steps S121B to S122B.

[0061] In step S121B, based on the production data, the production status of the bar production line and the rolling type change instruction of the bar production line are obtained, wherein the production status includes whether the bar production line is in the start state or the stop state.

[0062] In step S122B, when the bar production line changes from the on state to the off state, and / or when the rolling type change instruction of the bar production line is obtained, and / or when the bar production line is at the end of rolling in the current rolling batch time period, and / or when the bar production line is in the on state and the bar production line is at a preset time point, the moment is used as the rolling batch end time of the current rolling batch time period.

[0063] In this embodiment, when the bar production line changes from the start state to the stop state, it proves that the rolling work of the current rolling time period is completed, and this moment is used as the rolling end time of the current rolling time period.

[0064] When the rolling type change instruction of the bar production line is obtained, it proves that the rolling work of the next rolling batch is to start and the current rolling batch time period ends, and the moment is used as the rolling batch end time of the current rolling batch time period.

[0065] When the bar production line is in the on state and is at the preset time point, that is, at the above-mentioned shift change time point, the current rolling batch time period ends, the next new rolling batch time period begins, and this moment is used as the rolling batch end time of the current rolling batch time period.

[0066] Similarly, at the end of a cycle, for example at midnight of the day, the current rolling batch time period ends and the previous cycle ends, the next cycle begins and the next new rolling batch time period begins, and this moment is used as the rolling batch end time of the current rolling batch time period.

[0067] In some optional embodiments, such as Figure 4 As shown, the step of identifying the start-up time of the bar production line in step S120 includes steps S121C to S122C.

[0068] In step S121C, based on the production data, the production status of the bar production line and the rolling type change instruction of the bar production line are acquired. The production status includes whether the bar production line is in the start-up state or the shutdown state.

[0069] In step S122C, when the bar production line is in a shutdown state and a rolling type change instruction is obtained, this moment is used as the startup time.

[0070] In this embodiment, when the bar production line is in a shutdown state, if a rolling type change instruction is received, the bar production line will switch from the shutdown state to the startup state and start rolling work for a new rolling batch. This moment will be used as the startup time of the bar production line, and it will also be the start time of a new rolling batch in the rolling time period.

[0071] In some optional embodiments, such as Figure 5 As shown, the step of identifying the downtime of the bar production line in step S120 includes steps S121D to S122D.

[0072] In step S121D, based on the production data, the production status of the bar production line is obtained, where the production status includes whether the bar production line is in an on state or a stopped state.

[0073] In step S122D, when the bar production line switches from the start state to the stop state, the time is used as the stop time.

[0074] In this embodiment, if the bar production line does not receive a rolling type change instruction after the current rolling batch time period ends, this moment will be used as the downtime of the bar production line, and the bar production line will switch from the on state to the downtime state. At the same time, this moment is also the rolling batch end time of the current rolling batch time period.

[0075] Therefore, when the bar production line switches from the on state to the off state, this moment is regarded as the bar production line's off time, and this moment is also the rolling end time of the current first rolling time period. After the first rolling time period ends, the second rolling time period begins. The bar production line remains in the off state during the second rolling time period until the bar production line switches from the off state to the on state. This time is the bar production line's on time and also the rolling start time of a new rolling time period, i.e., the third rolling time period.

[0076] If the bar production line is in a shutdown state and the bar production line is at a preset time point (i.e. the shift change time point mentioned above), or the bar production line is in a shutdown state and at the end of a cycle, for example, at zero o'clock of a day, the moment is used as the end time of a rolling batch in a rolling time period, and the next rolling batch time period begins. At this time, the bar production line is still in a shutdown state.

[0077] In step S130, the electricity consumption per ton of steel in each rolling batch time period is calculated based on the power data, production data, rolling batch start time and rolling batch end time.

[0078] like Figure 6 As shown, in some optional embodiments, step S130 includes steps S131 to S133.

[0079] In step S131, based on the production data, the bar production output of the bar production line in each rolling batch time period and the production status of the bar production line are obtained, wherein the production status includes whether the bar production line is in the start state or the stop state.

[0080] In step S132, based on the power data, the rolling batch start time and the rolling batch end time, the power consumption of the bar production line in each rolling batch time period when the bar production line is in the power-on state is obtained.

[0081] In step S133, the electricity consumption per ton of steel in each rolling batch time period is calculated based on the bar output rolled in each rolling batch time period and the power consumption of the machine in each rolling batch time period.

[0082] In this embodiment, the power consumption of the machine and the power consumption per ton of steel in each rolling batch time period are calculated based on the following formula:

[0083]

[0084] e=E / S;

[0085] S=∑W i ;

[0086] w=S / T;

[0087] Among them, E is the total power consumption of each rolling batch time period in the power-on state (i.e., the power consumption of each rolling batch time period), S is the rolling output of each rolling batch time period, e is the power consumption per ton of steel in each rolling batch time period, W i is the weight of a single bar rolled in each rolling batch time period, w is the amount of steel passed per hour in each rolling batch time period, T is the rolling time of each rolling batch time period, n is the number of power supply circuits without metering electricity meters in the bar production line, m is the number of power supply circuits with metering electricity meters in the bar production line, t is the total time of all rolling batch time periods in the power-on state, e jt The base number of the electric meter for each power circuit at the end of the corresponding rolling batch time period, e j0 The base number of the electric meter for each power circuit at the beginning of the corresponding rolling batch time period, a i is the scaling factor of the active power of each power circuit, p i The active power of each power circuit, b i The offset of active power of each power circuit, c j The scaling factor for the energy measurement of each power circuit, d j The offset of the power consumption of each power circuit. Among them, the rolling time is the time span from the start time of each rolling batch to the end time of each rolling batch.

[0088] The above parameters are obtained through power data. According to the rolling start time and rolling end time of each rolling batch time period, the startup power consumption and power consumption per ton of steel of each rolling batch time period are calculated.

[0089] Furthermore, the power consumption calculation method of the bar production line also includes: calculating the average active power per unit time in each rolling batch time period based on the startup power consumption.

[0090] In this embodiment, the average active power per unit time of each rolling batch period is obtained by the following formula:

[0091]

[0092] Among them, P tis the active power at time t for each rolling batch period, n is the number of power supply circuits without meter in the bar production line, p i is the active power of each power supply circuit of the bar production line, a i is the scaling factor of the active power of each power supply circuit of the bar production line, b i The offset of active power for each power circuit, It is the average active power per unit time of each rolling batch time period, t1 is the length of the unit time, for example, the unit time can be selected as 10 minutes, 15 minutes, 30 minutes, and this application does not limit it.

[0093] In this embodiment, the power load of the bar production line is the average active power of the bar production line per unit time. By calculating the average active power per unit time in each rolling batch time period, the real-time power load of the bar production line can be accurately calculated, and the power load changes of the bar production line in different rolling batch time periods can be obtained, so as to adjust the power supply of the bar production line accordingly and realize refined power management.

[0094] Furthermore, when calculating the active power of the motor, it is calculated using the following formula:

[0095] P = (M × n) / 9550;

[0096] P3=f(I);

[0097] Among them, P is the active power value of each power supply circuit of the variable frequency speed regulation DC motor and AC motor, M is the torque, n is the speed, P3 is the active power value of each power supply circuit of the three-phase AC motor, and I is the stator current of the three-phase AC motor.

[0098] In step S140, the power consumption of the production equipment in each rolling batch time period is calculated based on the power data, the start time and the shutdown time.

[0099] like Figure 7 As shown, in some optional embodiments, step S140 includes steps S141 to S142.

[0100] In step S141, the production status of the bar production line is obtained based on the production data, wherein the production status includes whether the bar production line is in an on state or a stopped state.

[0101] In step S142, based on the power data, the startup time and the shutdown time, the power consumption of the production equipment of the bar production line in each rolling batch time period when the bar production line is in a shutdown state is calculated.

[0102] In this embodiment, based on the startup time and shutdown time, as well as the power data, the power consumption of the production equipment of the bar production line in the shutdown state is calculated using the following formula:

[0103]

[0104] e1=E1 / t;

[0105] Among them, E1 is the total power consumption of the bar production line during the shutdown state, n is the number of power supply circuits without metering of the bar production line, t is the total shutdown time of the bar production line, m is the number of power supply circuits with metering of the bar production line, e jt The base number of the electric meter at the end of shutdown for each power circuit, e j0 The base number of the electric meter at the beginning of the shutdown for each power circuit, a i is the scaling factor of the active power of each power circuit, p i The active power of each power circuit, b i The offset of active power of each power circuit, c j The scaling factor for the energy measurement of each power circuit, d j is the offset of the electricity consumption of each power circuit, and e1 is the power consumption per unit time when the bar production line is in a shutdown state.

[0106] According to the above method and formula of the present application, the power consumption of the production equipment of the bar production line when it is in a stopped state can be calculated.

[0107] In step S150 , the power consumption result of the bar production line is generated based on the production data, and / or the power consumption per ton of steel, and / or the power consumption of the production equipment.

[0108] like Figure 8 As shown, in some optional embodiments, step S150 includes steps S151 to S153.

[0109] In step S151, based on the production data, the rolling type, rolling specifications, and rolling output of the bar in each rolling batch time period are obtained.

[0110] In step S152, based on the rolling output, rolling type, rolling specification, and electricity consumption per ton of steel in each rolling batch time period, the electricity consumption per ton of steel of bars of different rolling types and different rolling specifications is calculated.

[0111] In step S153, based on the electricity consumption per ton of steel, and / or the average active power, and / or the electricity consumption of the production equipment, the electricity consumption result of the bar production line is generated.

[0112] In this embodiment, the power consumption results are shown in Tables 1 and 2. Table 1 shows the power consumption results when rolling steels of the same specification but different steel grades, and Table 2 shows the power consumption results when rolling steels of different specifications but the same steel grade.

[0113] Table 1

[0114]

[0115] Table 2

[0116]

[0117] As can be seen from Tables 1 and 2, the power consumption results include the total power consumption for rolling bars, power consumption per ton of steel, and the average, minimum, and maximum values ​​of active power.

[0118] Through the power consumption results, we can clearly obtain the power consumption and required power size of each steel grade and each specification of bar during rolling, so as to adjust the power supply for the rolling work of the corresponding steel grade and specification of bar, realize targeted and refined power consumption management, reduce electricity costs, improve energy utilization efficiency, and ensure stable power supply of the bar production line.

[0119] As shown in Table 3, in this embodiment of the present invention, there are three bar production lines. Table 3 shows the total power consumption of different production equipment, the proportion of power consumption in the total power consumption, the average power and the maximum power calculated by the power consumption calculation method of the bar production line provided by the embodiment of the present invention.

[0120] Table 3

[0121]

[0122] The first bar production line is equipped with three electrical rooms: the electrical room of the heating furnace area, the main electrical room of the rolling mill area and the cooling bed collection room.

[0123] The second bar production line is equipped with five electrical rooms: the electrical room of the heating furnace area, the main electrical room of the rolling mill area, the electrical room for reducing and sizing, the electrical room for cooling bed collection and the electrical room for water treatment.

[0124] The third bar production line is equipped with five electrical rooms: the electrical room of the heating furnace area, the main electrical room of the rolling mill area, the electrical room for reducing and sizing, the electrical room for cooling bed collection, and the electrical room for water treatment.

[0125] In these electrical rooms, dry-type power transformers supply power to constant-speed motors and workshop power, and rectifier transformers supply power to speed-regulating motors such as the main rolling mill, reducing and sizing mill, and flying shears.

[0126] The production equipment in the bar production line includes heating furnaces, rolling mills, dust removal equipment, lighting equipment, ventilation equipment, water treatment equipment, etc. For example, dust removal equipment, lighting equipment, ventilation equipment, and water treatment equipment are not directly involved in rolling work, but these equipment themselves also consume electricity. Therefore, by calculating the power consumption of these production equipment themselves, targeted power consumption management can be carried out for each production equipment to reduce electricity costs.

[0127] In a cycle, if the bar production line is still in a shutdown state during the next rolling batch time period, then the bar production line during this rolling batch time period will only consume electricity from the production equipment, and the power consumption of the bar production line during this rolling batch time period is the power consumption of the production equipment.

[0128] Therefore, the above steps can calculate the electricity consumption per ton of steel used for rolling bars, and / or the real-time power during the rolling process of the bar production line, and / or the electricity consumption of the production equipment itself (i.e., the electricity consumption excluding the electricity consumption used for rolling bars).

[0129] According to the power consumption calculation method for a bar production line provided by an embodiment of the present invention, the power consumption results shown in Tables 1 to 3 are obtained, so that the method of the present invention has the following beneficial effects:

[0130] 1) By calculating the power consumption for rolling bars based on rolling batches, the power consumption for producing bars with different rolling outputs, rolling types, and rolling specifications, as well as the power consumption of the production equipment itself, can be determined. This allows for targeted and refined power consumption management based on the power consumption required for different types of bars produced, thereby reducing electricity costs and improving energy efficiency.

[0131] 2) By calculating the power of the bar production line when rolling the bars, the real-time power load of the bar production line when rolling the bars is determined, so as to adjust the production volume according to the real-time power load and ensure the stable power supply of the bar production line.

[0132] The method for calculating the power consumption of a bar production line provided in an embodiment of the present invention includes: acquiring the power data and production data of the bar production line; identifying the rolling batch start time and rolling batch end time of each rolling batch time period of the bar production line, as well as the start time and shutdown time of the bar production line based on the production data; calculating the power consumption per ton of steel for each rolling batch time period based on the power data, production data, rolling batch start time and rolling batch end time; calculating the power consumption of production equipment for each rolling batch time period based on the power data, startup time and shutdown time; generating the power consumption result of the bar production line based on the production data, and / or power consumption per ton of steel, and / or power consumption of production equipment.

[0133] The power consumption calculation method for a bar production line provided in an embodiment of the present invention can accurately calculate the power consumption of bars in different rolling batches and the power consumption of production equipment based on the power data and production data of the bar production line, obtain the power consumption results of the bar production line, and then, based on the power consumption results, realize automated, information-based, and intelligent power consumption management of each production equipment in the bar production line and bars of different specifications.

[0134] like Figure 9 As shown, an embodiment of the present invention further provides a power consumption calculation system for a bar production line, wherein the bar production line rolls bars in batches according to multiple rolling time periods, and the power consumption calculation system for the bar production line includes: a data acquisition module 210 and a data processing module 220.

[0135] The data acquisition module 210 is used to obtain the power data and production data of the bar production line.

[0136] The data processing module 220 is used to identify the rolling batch start time and rolling batch end time of each rolling batch time period of the bar production line, as well as the start time and shutdown time of the bar production line based on the production data, and calculate the electricity consumption per ton of steel in each rolling batch time period based on the power data, production data, rolling batch start time and rolling batch end time, and calculate the electricity consumption of production equipment in each rolling batch time period based on the power data, startup time and shutdown time, and finally generate the electricity consumption results of the bar production line based on the production data and / or electricity consumption per ton of steel and / or electricity consumption of production equipment.

[0137] like Figure 10 and Figure 11 As shown, in this embodiment, the data acquisition module 210 collects the production data of the production management module through the production management switch and collects the power data of each power supply circuit through the integrated switch. The data processing module 220 receives the collected production data and power data, and calculates the power consumption results of the bar production line based on the production data and power data.

[0138] Furthermore, the bar production line power consumption calculation system also includes a control module and a clock synchronization module. The clock synchronization module is used to synchronize the system time within the bar production line power consumption calculation system. The control module includes a PLC controller, a motor protector, a frequency converter, and a soft starter. The PLC controller is connected to the user terminal, and the motor protector, frequency converter, and soft starter are each in communication with the PLC controller. The user terminal can send instructions to the control module, such as a rolling type change instruction, which controls the production equipment in the bar production line to execute the corresponding instructions, thereby achieving precise power management of the bar production line.

[0139] The power consumption calculation system for the bar production line of an embodiment of the present invention can accurately calculate the power consumption of bars in different rolling batches and the power consumption of production equipment based on the power data and production data of the bar production line, obtain the power consumption results of the bar production line, and then realize the refined management of the power consumption of each production equipment and bars of different specifications in the bar production line based on the power consumption results.

[0140] like Figures 9 to 11 As shown, in some optional embodiments, the bar production line power consumption calculation system further includes a data storage module 230 , and the data storage module 230 is communicatively connected to the data processing module 220 .

[0141] The data storage module 230 is used to store power data, and / or production data (electricity consumption per ton of steel), and / or production equipment power consumption, and / or power consumption results.

[0142] Furthermore, the data storage module 230 includes a relational data storage unit, a cache data storage unit, and a time series data storage unit. The relational data storage unit is used to store structured production table data and power table data. The cache data storage unit is used to store data that needs to be shared between various programs in the bar production line power consumption calculation system, as well as data that requires fast access. The time series data storage unit is used to store timestamp data.

[0143] In this embodiment, the data processing module 220 stores the processed power consumption result of the bar production line in the data storage module 230 .

[0144] After the power consumption result is processed by the data processing module 220 , the power consumption result is stored in the data storage module 230 in the form of a key-value pair, and the timestamp data of the power consumption result is also stored in the data storage module 230 .

[0145] For example, in the data storage module 230, the format of the Key name is as follows:

[0146] rtu:{999},[yx / yc / dd]:{999}

[0147] The first {999} refers to the number of the power communication RTU (remote terminal unit), and the second {999} refers to the communication data point number.

[0148] yx: represents remote signaling data.

[0149] yc: represents telemetry data.

[0150] dd: represents electricity data.

[0151] To unify with power communication, OPC protocol communication is used, treating each communication channel as an RTU and each OPC item (server data point) as a data point, assigned a data point number. Data from each RTU is stored as a measurement point, and its data point number is used as a retrieval tag.

[0152] The name format of the measurement point is as follows: rtu:{999},[yx / yc / dd].

[0153] like Figures 9 to 11 As shown, in some optional embodiments, the bar production line power consumption calculation system further includes a data display module 240, which is communicatively connected to the data storage module 230 and is used to display power consumption results.

[0154] In this embodiment, the data display module 240 is used to display the stored power consumption results to the user end.

[0155] Specifically, the data display module 240 can generate corresponding power consumption reports based on the power consumption results to display the power consumption and power load of different production equipment and when rolling bars of different specifications and types. The user end can also query the power consumption of different production equipment and bars of different specifications and types during rolling through the data display module 240, and the data display module 240 can also send the power consumption results to external devices.

[0156] The power consumption calculation system for a bar production line according to an embodiment of the present invention employs a layered architecture, comprising a data acquisition layer, a data processing layer, a data storage layer, a data application layer, and a data display layer. The data acquisition module 210 resides in the data acquisition layer, the data processing module 220 resides in the data processing layer, the data storage module 230 resides in the data storage layer, and the data display module 240 resides in both the data application layer and the data display layer. This power consumption calculation system for a bar production line according to an embodiment of the present invention enables automated, information-based, and intelligent power management of the bar production line.

[0157] For the above method embodiment, the embodiment of the present invention also provides the following Figure 12 The device for calculating power consumption of a bar production line shown includes: a processor 301 and a memory 302, wherein the memory 302 stores instructions; the processor 301 calls the instructions in the memory 302 so that the processor 301 executes the power consumption calculation method of the bar production line according to any of the aforementioned embodiments of the present invention.

[0158] The method for calculating the power consumption of a bar production line provided in the above-mentioned embodiment of the present invention includes: acquiring the power data and production data of the bar production line; identifying the rolling batch start time and rolling batch end time of each rolling batch time period of the bar production line, as well as the start-up time and shutdown time of the bar production line based on the production data; calculating the power consumption per ton of steel for each rolling batch time period based on the power data, production data, rolling batch start time and rolling batch end time; calculating the power consumption of production equipment for each rolling batch time period based on the power data, startup time and shutdown time; generating the power consumption results of the bar production line based on the production data, and / or power consumption per ton of steel, and / or power consumption of production equipment.

[0159] The power consumption calculation device for the bar production line provided by the embodiment of the present invention can accurately calculate the power consumption of bars in different rolling batches and the power consumption of production equipment based on the power data and production data of the bar production line by implementing the above method, and obtain the power consumption results of the bar production line, thereby realizing the refined management of the power consumption of each production equipment and bars of different specifications in the bar production line based on the power consumption results.

[0160] Furthermore, the power consumption calculation device for a bar production line provided by an embodiment of the present invention may further include a communication interface 303 and a bus 304 , and the processor 301 , the memory 302 and the communication interface 303 are electrically connected via the bus 304 .

[0161] The memory 302 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage. The communication connection between the system network element and at least one other network element is achieved through at least one communication interface 303 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used. The bus 304 may be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 12 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0162] The processor 301 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the processor 301 or by software instructions. The above processor 301 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present invention can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in memory 302, and processor 301 reads information in memory 302 and, in conjunction with its hardware, completes the steps of the method of the aforementioned embodiment.

[0163] An embodiment of the present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When the instructions are run on a computer, the computer executes the steps of the above-mentioned method for calculating the power consumption of a bar production line.

[0164] The computer-readable storage medium provided by an embodiment of the present invention stores data and computer-executable instructions of the above-mentioned method for calculating the power consumption of a bar production line, and the above-mentioned method for calculating the power consumption of a bar production line includes: obtaining the power data and production data of the bar production line; based on the production data, identifying the rolling batch start time and rolling batch end time of each rolling batch time period of the bar production line, as well as the start-up time and shutdown time of the bar production line; based on the power data, production data, rolling batch start time and rolling batch end time, calculating the power consumption per ton of steel for each rolling batch time period; based on the power data, start time and shutdown time, calculating the power consumption of production equipment for each rolling batch time period; based on the production data, and / or power consumption per ton of steel, and / or power consumption of production equipment, generating the power consumption results of the bar production line.

[0165] The computer-readable storage medium provided by an embodiment of the present invention can, by implementing the above method, accurately calculate the power consumption of bars in different rolling batches and the power consumption of production equipment based on the power data and production data of the bar production line, obtain the power consumption results of the bar production line, and then realize the refined management of the power consumption of each production equipment and bars of different specifications in the bar production line based on the power consumption results.

[0166] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0167] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc., various media that can store program code.

[0168] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for calculating power consumption of a bar production line, characterized in that: The bar production line rolls bars in batches according to a plurality of rolling batch time periods, and the method comprises: Acquiring power data and production data of the bar production line; Based on the production data, identifying the rolling batch start time and the rolling batch end time of each rolling batch time period of the bar production line, as well as the start time and the shutdown time of the bar production line; Calculating the electricity consumption per ton of steel in each rolling batch time period based on the power data, the production data, the rolling batch start time, and the rolling batch end time; Calculating the power consumption of the production equipment in each rolling batch time period based on the power data, the startup time and the shutdown time; Based on the production data, and / or the electricity consumption per ton of steel, and / or the electricity consumption of the production equipment, an electricity consumption result of the bar production line is generated.

2. The method for calculating power consumption of a bar production line according to claim 1, characterized in that: The step of identifying the rolling batch start time of each rolling batch time period comprises: Based on the production data, obtaining a rolling type change instruction for the bar production line; When the rolling type change instruction is obtained, and / or when the bar production line is at the moment when rolling of the previous rolling batch time period ends, and / or when the bar production line is at a preset time point, this moment is used as the rolling batch start time of the next rolling batch time period.

3. The method for calculating power consumption of a bar production line according to claim 1, characterized in that: The step of identifying the rolling batch end time of each rolling batch time period includes: Based on the production data, obtaining a production status of the bar production line and a rolling type change instruction of the bar production line, wherein the production status includes whether the bar production line is in an on state or a stopped state; When the bar production line changes from the on state to the off state, and / or when the rolling type change instruction is obtained, and / or when the bar production line is at the end of rolling in the current rolling batch time period, and / or when the bar production line is in the on state and the bar production line is at a preset time point, the moment is used as the rolling batch end time of the current rolling batch time period.

4. The method for calculating power consumption of a bar production line according to claim 1, characterized in that: The step of identifying the start-up time of the bar production line includes: Based on the production data, obtaining a production status of the bar production line and a rolling type change instruction of the bar production line, wherein the production status includes whether the bar production line is in an on state or a stopped state; When the bar production line is in the shutdown state and obtains the rolling type change instruction, this moment is used as the startup time.

5. The method for calculating power consumption of a bar production line according to claim 1, characterized in that: The steps of identifying downtime of the bar production line include: Based on the production data, obtaining a production status of the bar production line, wherein the production status includes whether the bar production line is in an on state or a stopped state; When the bar production line changes from the start state to the stop state, this moment is used as the stop time.

6. The method for calculating power consumption of a bar production line according to claim 1, characterized in that: The step of calculating the electricity consumption per ton of steel in each rolling batch time period comprises: Based on the production data, the bar production output of the bar production line in each rolling batch time period and the production status of the bar production line are obtained, wherein the production status includes whether the bar production line is in an on state or a stopped state; Based on the power data, the rolling batch start time and the rolling batch end time, obtaining the power consumption of the bar production line in each rolling batch time period in the startup state; Based on the bar output rolled in each rolling batch time period and the startup power consumption in each rolling batch time period, the power consumption per ton of steel in each rolling batch time period is calculated.

7. The method for calculating power consumption of a bar production line according to claim 6, characterized in that: The step of calculating the power consumption of the production equipment in each rolling batch time period includes: Based on the production data, obtaining a production status of the bar production line, wherein the production status includes whether the bar production line is in an on state or a stopped state; Based on the power data, the startup time and the shutdown time, the power consumption of the production equipment of the bar production line in each rolling batch time period when the bar production line is in the shutdown state is calculated.

8. The method for calculating power consumption of a bar production line according to claim 6 or 7, characterized in that: The method further comprises: Based on the startup power consumption, the average active power per unit time of each rolling batch time period is calculated.

9. The method for calculating power consumption of a bar production line according to claim 8, characterized in that: The step of generating the power consumption result of the bar production line based on the production data, and / or the power consumption per ton of steel, and / or the power consumption of the production equipment comprises: Based on the production data, the rolling type, rolling specifications, and rolling output of the bar in each rolling batch time period are acquired; Calculating the electricity consumption per ton of steel for bars of different rolling types and different rolling specifications based on the rolling output, the rolling type, the rolling specifications, and the electricity consumption per ton of steel in each rolling batch time period; The power consumption result of the bar production line is generated based on the power consumption per ton of steel, and / or the average active power, and / or the power consumption of the production equipment.

10. The method for calculating power consumption of a bar production line according to claim 1, characterized in that: The power data includes the loop power supply parameters of each rolling batch time period of the bar production line, and the production data includes the production status, rolling type, rolling specifications, and rolling output of each rolling batch time period of the bar production line. The production status includes whether the bar production line is in the on state or the off state.

11. A power consumption calculation system for a bar production line, characterized in that: The bar production line rolls bars in batches according to multiple rolling time periods. The power consumption calculation system of the bar production line includes: A data acquisition module, used to obtain power data and production data of the bar production line; A data processing module is used to identify the rolling batch start time and rolling batch end time of each rolling batch time period of the bar production line, as well as the start time and shutdown time of the bar production line based on the production data; calculate the electricity consumption per ton of steel in each rolling batch time period based on the power data, the production data, the rolling batch start time and the rolling batch end time; calculate the electricity consumption of the production equipment in each rolling batch time period based on the power data, the startup time and the shutdown time; and generate the electricity consumption result of the bar production line based on the production data, and / or the electricity consumption per ton of steel, and / or the electricity consumption of the production equipment.

12. The power consumption calculation system for a bar production line according to claim 11, characterized in that: The power consumption calculation system of the bar production line also includes: A data storage module, the data storage module is communicatively connected to the data processing module, and the data storage module is used to store the power data, and / or the production data, the electricity consumption per ton of steel, and / or the electricity consumption of the production equipment, and / or the electricity consumption results.

13. The power consumption calculation system for a bar production line according to claim 11, characterized in that: The power consumption calculation system of the bar production line also includes: A data display module is communicatively connected to the data storage module, and is used to display the power consumption result.

14. A device for calculating power consumption of a bar production line, characterized in that: The power consumption calculation device for the bar production line includes: a processor and a memory, wherein the memory stores instructions; The processor calls the instructions in the memory to enable the bar production line power consumption calculation device to implement the bar production line power consumption calculation method according to any one of claims 1 to 10.

15. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by the processor, the power consumption calculation method for a bar production line according to any one of claims 1 to 10 is implemented.

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