Control method of metallurgical engineering instrument power supply and distribution automatic design drawing system

Abstract

A control method of a metallurgical engineering instrument power supply and distribution automatic design drawing system belongs to the technical field of engineering instrument control, and comprises the following steps: S1, reading the design input content of an engineer; s2, matching an expert database according to the input; s3, reading the expert database, and obtaining information of all instruments in the workshop; s4, calculating a rated current; s5, counting instruments in each power supply box according to the classification of the power supply boxes; s6, carrying out secondary distribution in the box, and carrying out classified statistics on instruments with different voltage grades; s7, sorting instruments with the same voltage class in the box according to power; s8, calculating the sum of the power of all instruments correspondingly supplied with power in the power supply box; s9, matching a database, and calculating rated current of the main switch and each branch switch in the box; and S10, naming and pairing switch currents, and enabling the switch currents to correspond to respective instruments. According to the method, automatic drawing of the instrument power supply system is achieved with the minimum system input quantity to the maximum extent, the design process is standardized, the design productivity is improved, and the design error rate is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering instrument control, and in particular relates to a control method for a metallurgical engineering instrument power supply and distribution automatic design and drawing system. Background Art

[0002] In traditional engineering design, the drawings of the power supply system for automated instrumentation in the iron and steel metallurgical industry are often drawn one stroke at a time using CAD software, which is inefficient, has a high error rate, and requires a large amount of work. In addition, there is no specially customized and efficient design software.

[0003] In the existing technology, there is no automatic design software developed. For the pre-iron sintering pelletizing project, the engineering instrument technology and algorithm are automatically completed by computer programs, which can greatly improve the design efficiency, reduce the error rate, and realize the standardization of drawings.

[0004] In the existing technology, there is no combination of expert experience with relevant standards and sintering pelletizing processes to achieve automatic drawing of instrument power supply systems with minimal system input to the greatest extent possible, nor is there a method or system designed to standardize the design process, improve design productivity, and reduce the design error rate.

[0005] Defects and shortcomings of the existing technology (manual drawing, drawing one stroke at a time):

[0006] (1) Low efficiency.

[0007] (2) High error rate.

[0008] (3) Low degree of standardization.

[0009] (4) Heavy workload. Summary of the invention

[0010] In order to solve the above problems, the present invention proposes: a control method for a metallurgical engineering instrument power supply and distribution automatic design and drawing system, comprising the following steps:

[0011] S1. Read the design input of the engineering staff;

[0012] S2, matching expert database according to input;

[0013] S3. Read the expert database to obtain the "equipment number, equipment name, voltage, power, and location of the instrument power supply box" of all instruments in the workshop;

[0014] S4. Calculate the rated current of the corresponding power switch of each instrument;

[0015] S5. Classify by power supply box and count the instruments in each power supply box;

[0016] S6, secondary distribution in the box, classification and statistics of instruments of different voltage levels;

[0017] S7. Instruments with the same voltage level in the box are sorted by power;

[0018] S8. Calculate the total power of all instruments in the power supply box that are powered by the power supply;

[0019] S9, match the database and calculate the rated current of the main switch and each sub-switch in the box;

[0020] S10, name the main switch and switches ZK0, ZK1~ZKN, pair the switch currents, and correspond to their respective instruments;

[0021] S11. Classify by power supply box and count the instruments, switches, panel meters and DC power supplies in each power supply box;

[0022] S12. Count all the data in each power supply box: instruments, switches, panel meters, DC power supply;

[0023] S13, start the printing subroutine to print PDF, white image and blueprint.

[0024] Furthermore, the database calling process is as follows:

[0025] 1) Calculate the equipment current and select the switch rated current

[0026] 220V AC equipment rated current calculation method: I = 1.5*P / V

[0027] 380V AC equipment rated current calculation method: I = 1.5*P / 1.732*V

[0028] 24V DC device rated current calculation method: I = 1.5*P / V

[0029] After calculation, the matching value is taken from the rated current database;

[0030] 2) Automatic design of various switches in the box

[0031] According to expert design experience, the calculation method is: n = int (number of devices * 1.2)

[0032] 3) Calculation of total switching power:

[0033] When the maximum voltage in the box is 220V AC: I = sum of all equipment power * 1.5 / V

[0034] When the maximum voltage in the box is 380V AC: I = sum of all equipment power * 1.5 / 1.732V.

[0035] Furthermore, the corresponding power supply system diagram and instrument power supply box layout diagram are drawn according to the calculation results, that is, the automatic drawing procedure of CAD drawings is as follows:

[0036] 1) Steps for drawing the power supply system diagram based on the power supply box:

[0037] Draw the main switch; draw the sub-switch; draw the power supply system connection line; draw the "equipment bit number" text corresponding to the switch;

[0038] 2) Draw the layout diagram of the power supply box based on the power supply box:

[0039] Calculate the size of the box based on the size of the internal components; design the position of each device in the box based on "expert experience"; draw the box; draw the switches; draw the panel installation table; draw the text; draw the dimension.

[0040] Furthermore, the contents of the database include: power supply system database, equipment parameter database, power supply box and location database, rated current database;

[0041] 1) The power supply system database is the general database, which stores all input and output data;

[0042] 2) In the equipment parameter database, according to the specifications, samples, and expert experience, most types of instrument equipment have a fixed upper limit on rated power. The equipment parameter database includes equipment name, power, current, and voltage:

[0043] 3) In the power supply box and location database, according to the specifications, samples, and expert experience, a database is compiled. According to the position number AA-BBCC of the instrument, "AA" is specified as the letter representation of the instrument form and transmission form, "BB" is in the form of 01 to 99 numbers, which is used as the area code of the workshop where the instrument is located and the location in the workshop, and "CC" is in the form of 01 to 99 numbers, which is the serial code of the same type of instruments in the same area;

[0044] The database can be used to call other data by using the equipment number as an index, so that the corresponding values ​​can be calculated and called later. The form of the equipment parameter database is as follows: equipment number, workshop, workshop location, power supply box;

[0045] 4) In the rated current database, based on design experience, the rated current of the corresponding instrument power switch is designed for different "calculated currents". The rated current database is in the following form: the calculated current interval and the corresponding rated current value.

[0046] The beneficial effects of the present invention are as follows: the present invention combines expert experience with relevant standards and sintering pelletizing technology to achieve automatic drawing of instrument power supply systems with minimal system input to the greatest extent, standardize design processes, improve design productivity, and reduce design error rates.

[0047] (1) Efficient.

[0048] (2) High accuracy.

[0049] (3) Drawing standardization.

[0050] (4) Reduce labor intensity.

[0051] (5) Drawings are drawn based on expert experience to improve design quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A flow chart of the control method of the automatic design and drawing system for power supply and distribution of metallurgical engineering instruments of the present invention;

[0053] Figure 2 Draw a power supply system diagram for the present invention with the power supply box as the unit;

[0054] Figure 3 The power supply box layout diagram is drawn based on the power supply box as a unit for the present invention. DETAILED DESCRIPTION

[0055] In order to make the technical means and objectives of the present invention easy to understand, the present invention is further described below in combination with specific embodiments. A control method for an automatic design and drawing system for power supply and distribution of metallurgical engineering instruments, such as Figure 1 As shown, the following steps are included:

[0056] 1) Read the design input of the engineering staff

[0057] 2) Match the expert database based on the input

[0058] 3) Read the expert database to obtain the "equipment number, equipment name, voltage, power, and location of the instrument power supply box" of all instruments in the workshop

[0059] 4) Calculate the rated current of the corresponding power switch of each instrument

[0060] 5) Classify by power supply box and count the instruments in each power supply box

[0061] 6) Secondary distribution in the box, classification and statistics of instruments with different voltage levels

[0062] 7) Instruments with the same voltage level in the box are sorted by power

[0063] 8) Calculate the total power of all instruments in the power supply box

[0064] 9) Match the database and calculate the rated current of the main switch and each sub-switch in the box

[0065] 10) Name the main switch and switches ZK0, ZK1~ZKN, pair the switch currents, and correspond to their respective instruments

[0066] 11) Classify by power supply box and count the instruments, switches, panel meters, DC power supplies in each power supply box.

[0067] 12) Collect all data in each power supply box: instruments, switches, panel meters, DC power supply

[0068] 13) Start the printing subroutine to print PDF, white image, and blueprint.

[0069] Algorithm design based on "norms and expert experience"

[0070] In the above program steps, the algorithms involved are:

[0071] 1) Calculate the equipment current and select the switch rated current

[0072] 220V AC equipment rated current algorithm:

[0073] I=1.5*P / V

[0074] 380V AC equipment rated current algorithm:

[0075] I=1.5*P / 1.732*V

[0076] 24V DC device rated current algorithm:

[0077] I=1.5*P / V

[0078] After calculation, obtain the matching value in the "rated current database".

[0079] 2) Automatic design of various switches in the box

[0080] According to the design experience of experts, when designing the power supply of instrument switches with the same voltage, it is necessary to consider 20% of the power supply circuit backup capacity. The calculation method is:

[0081] n = int (number of devices * 1.2)

[0082] 3) Calculation of total switching power:

[0083] When the maximum voltage in the box is 220V AC:

[0084] I = sum of all device power * 1.5 / V

[0085] When the maximum voltage in the box is 380V AC:

[0086] I = sum of all equipment power * 1.5 / 1.732 Vcad drawing automatic drawing program

[0087] In the above program steps, it is necessary to draw the corresponding power supply system diagram and instrument power supply box layout diagram according to the calculation results. The algorithms involved are:

[0088] 1) Steps for drawing the power supply system diagram based on the power supply box:

[0089] Draw the main switch; draw the sub-switch; draw the power supply system connection line; draw the "equipment bit number" text corresponding to the switch. The drawing result is as follows: Figure 2 As shown:

[0090] 2) Draw the layout diagram of the power supply box based on the power supply box:

[0091] Calculate the size of the box according to the size of the internal components; design the position of each device in the box based on "expert experience"; draw the box; draw the switch; draw the panel installation table; draw the text; draw the dimension. Figure 3 As shown:

[0092] The purpose of this patent is to realize the automatic design, drawing and printing of the instrument power supply system of the pre-iron sintering pelletizing plant.

[0093] Architecture design:

[0094] Combining expert experience with relevant standards and sintering pelletizing technology, we can achieve automatic drawing of power supply systems with minimal system input to the greatest extent possible, standardize design processes, improve design productivity, and reduce design error rates.

[0095] (1) Software environment:

[0096] In order to meet the needs of office and design to the greatest extent, this patent uses the VBA language environment of conventional software EXCEL and CAD drawing software to develop to a certain extent, so as to adapt to user habits and be compatible with WPS and other CAD systems. The system input end is designed in the EXCEL table, which is very convenient for users to use.

[0097] (2) Hardware composition:

[0098] In order to meet the needs of office and design to the greatest extent, the hardware is compatible with conventional computer systems and various printers. After the system is put into use, it can realize automatic control of computers and printers.

[0099] 1Data type design:

[0100] The data related to the power supply system include: equipment number, equipment name, voltage, power, and location of the instrument power supply box. The data format is as follows:

[0101]

[0102]

[0103] in:

[0104] 1) The equipment number is the symbolic name of the instrument equipment, which is compiled by the engineering staff according to the nature of the instrument. The instrument number format is AA-BBCC, where "AA" is the letter representation of the instrument format and transmission format (composed of 2 to 4 letters), "BB" is in the form of 01 to 99 numbers, which is used as the area code of the workshop where the instrument is located and the location in the workshop, and "CC" is in the form of 01 to 99 numbers, which is the serial code of the same type of instruments in the same area.

[0105] 2) The device name is the specific name of the instrument equipment

[0106] 3) Voltage is the power supply voltage of the corresponding instrument, which is divided into 380V AC, 220V AC, and 24V DC

[0107] 4) Power is the rated working power of the corresponding instrument

[0108] 5) The location of the power supply box is the location of the power supply box in the workshop

[0109] In the design of this patent, the "input necessity" of the above data is divided according to its different nature. The purpose of the division is to reduce the design input data as much as possible in the system input interface, integrate the "design specifications and expert design experience" into the program algorithm as much as possible, and automatically run and calculate the remaining data.

[0110] According to the above principles:

[0111] 1) The “design input terminal” in this patent is designed as:

[0112] “Equipment tag number, equipment name, power of some equipment, voltage level of some equipment.”

[0113] It should be noted that in the sintering pelletizing industry, according to relevant specifications and expert design experience, the power and voltage levels of most instruments are relatively fixed and can be considered as constant values. Such data is built into the software and does not require special input. It is automatically stored in this patented database and automatically allocated and mobilized during calculations.

[0114] If encountering special circumstances, engineers need to manually enter the voltage and power of some unconventional instruments.

[0115] 2) The “automatically analyzed / solved quantities” in this patent are:

[0116] According to expert experience and relevant standards, the quantitative data that can be calculated by the algorithm are: equipment power (conventional), voltage (conventional), instrument power supply box, and box location.

[0117] 2 Database Design

[0118] In order to achieve the automatic drawing of the power supply system with the minimum system input, standardize the design process, improve the design productivity, and reduce the design error rate, the database is designed by combining the expert experience with relevant standards and sintering pelletization process. The database content includes: "power supply system database", "equipment parameter database", "power supply box and location database", and "rated current database".

[0119] 1) “Power supply system database” is the general database that stores all input and output data.

[0120] 2) In the "equipment parameter database", according to specifications, samples, and expert experience, most types of instrument equipment (such as pressure transmitters, level meters, flow transmitters, electromagnetic flow meters, instrument valves, electronic belt scales, dust concentration meters, thermal imagers, etc.) have a fixed upper limit on rated power. Therefore, the rated power can be set according to its upper limit in the database, and the voltage and power corresponding to each conventional "equipment name" can be compiled. Using this database, other data can be called by using the "equipment name" as an index, so that the corresponding values ​​can be calculated and called later. The form of the "equipment parameter database" is as follows:

[0121] Serial number Device Name Power(W) Current (A) Voltage 1 Temperature Meter X X 220VAC 2 Pressure gauge X X 220VAC 3 。。。 。。。 。。。 。。

[0122] 3) In the "power supply box and location database", the database is compiled according to the specifications, samples, and expert experience. According to the position number AA-BBCC of the instrument, "AA" is specified as the letter representation of the instrument form and transmission form, "BB" is in the form of 01 to 99 numbers, which is used as the area code of the workshop where the instrument is located and the location in the workshop, and "CC" is in the form of 01 to 99 numbers, which is the serial code of the same type of instrument in the same area. Using this database, other data can be called through the "equipment position number" as an index, so that the corresponding value can be calculated and called later. The form of the "equipment parameter database" is as follows:

[0123] Serial number Equipment tag Workshop Workshop Location Power supply box 1 TE-0101 Fuel fragmentation In the workshop AIB-0101 2 TE-0551 Sintering chamber 24m2 Plane AIB-0501 3 。。。 。。。 。。。 。。。

[0124] 4) In the "rated current database", based on design experience, the rated current of the corresponding instrument power switch is designed for different "calculated currents" (the algorithm for calculating current is described later). The form of the "rated current database" is as follows:

[0125] Calculated current (A) <1 1～2 2～4 4～6 6～10 10～16 16～20 20～25 25～32 Rated current(A) 1 2 4 6 10 16 20 25 32

[0126] 3 System input

[0127] The input end provides a manual input interface for "required input quantities", which include: "equipment bit number", "equipment name", "partial equipment power", and "partial equipment voltage level".

[0128] For sintering pelletizing plants, the "equipment number" and "equipment name" vary from project to project, so engineers need to input them.

[0129] Most types of instrument equipment that require power supply (such as pressure transmitters, level meters, flow transmitters, electromagnetic flow meters, instrument valves, electronic belt scales, thermal imagers, component analyzers, etc.) have a fixed upper limit on their rated power. Therefore, the rated power can be set in the database according to its power upper limit. For specific methods, see the database design description section.

[0130] For a small number of instrument equipment types that require power supply (such as process valves, process dampers, process complete instrumentation and control systems, special instruments, etc.), their "rated power" varies from project to project. This patented system provides an input window to input their "rated power" to enable subsequent calculations.

[0131] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A control method for an automatic design and drawing system for power supply and distribution of metallurgical engineering instruments, characterized in that: The steps include: S1. Read the design input of the engineering staff; S2, matching expert database according to input; S3, read the expert database to obtain the "equipment number, equipment name, voltage, power, and location of the instrument power supply box" of all instruments in the workshop; S4. Calculate the rated current of the corresponding power switch of each instrument; S5. Classify by power supply box and count the instruments in each power supply box; S6, secondary distribution in the box, classification and statistics of instruments of different voltage levels; S7. Instruments with the same voltage level in the box are sorted by power; S8. Calculate the total power of all instruments in the power supply box that are powered by the power supply; S9, match the database and calculate the rated current of the main switch and each sub-switch in the box; S10, name the main switch and switches ZK0, ZK1~ZKN, pair the switch currents, and correspond to their respective instruments; S11. Classify by power supply box and count the instruments, switches, panel meters and DC power supplies in each power supply box; S12. Count all the data in each power supply box: instruments, switches, panel meters, DC power supply; S13, start the printing subroutine to print PDF, white image and blueprint.

2. The control method of the automatic design and drawing system for power supply and distribution of metallurgical engineering instruments as claimed in claim 1 is characterized in that: The database calling process is as follows: 1) Calculate the equipment current and select the switch rated current 220V AC equipment rated current calculation method: I = 1.5*P / V 380V AC equipment rated current calculation method: I = 1.5*P / 1.732*V 24V DC device rated current calculation method: I = 1.5*P / V After calculation, the matching value is taken from the rated current database; 2) Automatic design of various switches in the box According to expert design experience, the calculation method is: n = int (number of devices * 1.2) 3) Calculation of total switching power: When the maximum voltage in the box is 220V AC: I = sum of all equipment power * 1.5 / V When the maximum voltage in the box is 380V AC: I = sum of all equipment power * 1.5 / 1.732V.

3. The control method of the automatic design and drawing system for power supply and distribution of metallurgical engineering instruments as claimed in claim 2 is characterized in that: Draw the corresponding power supply system diagram and instrument power supply box layout diagram according to the calculation results, that is, the automatic drawing procedure of CAD drawings is as follows: 1) Steps for drawing the power supply system diagram based on the power supply box: Draw the main switch; draw the sub-switch; draw the power supply system connection line; draw the "equipment bit number" text corresponding to the switch; 2) Draw the layout diagram of the power supply box based on the power supply box: Calculate the size of the box based on the size of the internal components; design the position of each device in the box based on "expert experience"; draw the box; draw the switches; draw the panel installation table; draw the text; draw the dimension.

4. The control method of the automatic design and drawing system for power supply and distribution of metallurgical engineering instruments as claimed in claim 3 is characterized in that: The contents of the database include: power supply system database, equipment parameter database, power supply box and location database, and rated current database; 1) The power supply system database is the general database, which stores all input and output data; 2) In the equipment parameter database, according to the specifications, samples, and expert experience, most types of instrument equipment have a fixed upper limit on rated power. The equipment parameter database includes equipment name, power, current, and voltage: 3) In the power supply box and location database, according to the specifications, samples, and expert experience, a database is compiled. According to the position number AA-BBCC of the instrument, "AA" is specified as the letter representation of the instrument form and transmission form, "BB" is in the form of 01 to 99 numbers, which is used as the area code of the workshop where the instrument is located and the location in the workshop, and "CC" is in the form of 01 to 99 numbers, which is the serial code of the same type of instruments in the same area; The database can be used to call other data by using the equipment number as an index, so that the corresponding values ​​can be calculated and called later. The form of the equipment parameter database is as follows: equipment number, workshop, workshop location, power supply box; 4) In the rated current database, based on design experience, the rated current of the corresponding instrument power switch is designed for different "calculated currents". The rated current database is in the following form: the calculated current interval and the corresponding rated current value.

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