Plate matching method for multi-plate tailor-welded cylinder part

Abstract

A board matching method for multi-board tailor-welded cylinder parts relates to the field of processing and manufacturing of cylinder parts, and comprises the following steps: S1, establishing an inventory board database and a screening form, recording board data information in an inventory in the inventory board database, the screening form comprising a first-level form for determining an algorithm for determining an initial value range of a matching board, and a second-level form for determining an initial value range of the matching board; the secondary form is used for optimizing the value accuracy based on application conditions within the initial value range of the matching board; s2, inputting design parameters of the processed barrel type parts, screening a matching plate initial value range algorithm through a first-level form based on the design parameters of the processed barrel type parts, and calculating the matching plate initial value range, including the value ranges of the number n of barrel sections, the length Li of the barrel sections and the number N of longitudinal joints of the barrel sections; and S3, based on the secondary form, optimizing the value precision in the initial value range of board matching, and outputting a board matching scheme. The method has the advantage that the design parameters, stock plate data and related application condition limitations of the cylinder parts can be comprehensively considered.

Description

Technical Field

[0001] The invention relates to the field of processing and manufacturing of cylinder parts, and in particular to a plate matching method for multi-plate tailor-welded cylinder parts. Background Art

[0002] When producing cylindrical pressure-bearing parts such as large boiler pressure vessels, plates are generally first used to assemble cylindrical sections. The production of a single section is usually to cut the plates into a rectangle corresponding to the requirements of the drawing, and then roll and splice them to form a section. Then, multiple sections are circumferentially seamed and axially spliced ​​into a cylinder. That is, a cylinder is composed of multiple sections, similar to a piece of bamboo being made up of multiple bamboo sections.

[0003] Although there are certain minimum design requirements for the axial length of the center of the cylinder segment during the manufacturing design of the cylinder, in general, the diameter of the cylinder is a fixed value, and the number of spliced ​​cylinder segments that can be selected and the axial length of each cylinder segment can be different. For example, a cylinder with an axial length of 10 meters can be composed of two cylinder segments with an axial length of 4 meters and one cylinder segment with an axial length of 2 meters, or it can be composed of three cylinder segments with an axial length of 3 meters and one cylinder segment with an axial length of 1 meter. The two variables of the axial length of the cylinder segment and the number of cylinder segments directly affect the selection of materials and the circumferential welding process during cylinder forming. At present, the production of cylinders is generally based on manual experience to select materials and formulate circumferential welding processes. There are problems of large manual workload and low efficiency, and high requirements for manual experience and skills. The most important thing is that when manually handling related work, the application conditions such as inventory materials, processing capacity, and transportation capacity are not considered, which leads to material waste or the design plan cannot be smoothly implemented in actual production and processing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a plate matching method for multi-plate welded cylinder parts that can comprehensively consider the design parameters of cylinder parts, inventory plate data and related application conditions.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A plate matching method for multi-plate tailor-welded cylinder parts, comprising the following steps: S1: Establishing a stock plate database and a screening form, the stock plate database records the plate data information related to the multi-plate welding production of cylinder parts in the stock, and updates the plate data information in real time based on the consumption and replenishment of the stock plates; the screening form includes a primary form for determining the algorithm for the initial value range of the plate matching, and a secondary form for optimizing the value accuracy based on application conditions within the initial value range of the plate matching; S2: input the design parameters of the processed cylindrical parts, and based on the design parameters of the processed cylindrical parts, select the initial value range algorithm of the plate matching through the first-level form, and calculate the initial value range of the plate matching, including calculating the value range of the number of cylinder sections n, the length of the cylinder section Li, and the number of longitudinal seams N of the cylinder section; S3: Based on the secondary form, optimize the value accuracy within the initial value range of the panel configuration, and output the panel configuration plan based on the optimization results.

[0006] The optional sequence in the primary form is a single-select material sequence, which includes carbon steel, stainless steel, aluminum alloy, and copper alloy. Each single-select material has a preset corresponding initial value range algorithm for the matching plate.

[0007] The optional sequence in the secondary form is an application condition sequence that can be selected as indefinite items, and the application condition sequence includes the minimum inventory plate length Llim1, the upper limit of the rolling processing length Llim2, and the upper limit of the transportation obstacle avoidance length Llim3.

[0008] The plate data information includes the length, width, thickness and material of the plate.

[0009] The design parameters of the processed cylindrical parts include the wall thickness t, the cylinder length L, and the inner diameter d of the cylindrical parts.

[0010] When performing the step S2, carbon steel is selected in the single-select material sequence of the primary form, and the corresponding plate matching initial value range algorithm is matched, specifically including the cylinder section number n algorithm, the cylinder section length Li algorithm, and the cylinder section longitudinal seam number N algorithm.

[0011] The cylinder length Li algorithm is as follows: Assume that the minimum value of Li is Li-min and the maximum value is Li-max; Li-min=MAX{2d (t≤5mm), 1.5d (t>5mm), L / 4 (L>10M), L / 3 (2M≤L<10M), L (L<2M)}; Li-max=MIN{4.5,L}; Li-min≤Li≤Li-max.

[0012] The cylinder section number n algorithm is as follows: n=L / Li, and n is a positive integer; When L<2M, n≤2; When 2M≤L<5M, n≤4; When 5M≤L<10M, n≤5; When L>10M, n≥3.

[0013] The calculation method of the number of longitudinal seams N of the cylinder section is as follows: When d<1.5M, N≤2, When d≥1.5M, N≤6.

[0014] When performing step S3, all application condition sequences are selected in the secondary table to further limit the maximum value Li-max of Li. The algorithm is as follows: Li-max=MIN{Llim1, Llim2, Llim3}.

[0015] Compared with the prior art, the advantages of the present invention are as follows: the plate matching method for multi-plate welded cylindrical parts of the present invention establishes a stock plate database and a screening form, and based on the design parameters of the processed cylindrical parts, firstly screens the plate matching initial value range algorithm through the first-level form to calculate the theoretically feasible plate matching parameters, and then optimizes the value accuracy within the initial value range of the plate matching through the second-level form, and can comprehensively consider the limitations of design parameters, stock plate data and related application conditions to output a relatively optimized solution. At the same time, the stock plate database updates the plate data information in real time based on the consumption and replenishment of the stock plate, which can ensure the reliability of the data in continuous production, and can find the plates required for production from the inventory according to the recommended plate matching plan during the production implementation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic flow chart of a plate matching method for multi-plate welded cylinder parts. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 As shown, a plate matching method for multi-plate tailor-welded cylinder parts of this embodiment includes the following steps: S1: Establishing a stock plate database and a screening form, the stock plate database records the plate data information related to the multi-plate welding production of cylinder parts in the stock, and updates the plate data information in real time based on the consumption and replenishment of the stock plates; the screening form includes a primary form for determining the algorithm for the initial value range of the plate matching, and a secondary form for optimizing the value accuracy based on application conditions within the initial value range of the plate matching; S2: Input the design parameters of the processed cylindrical parts, and select the initial value range algorithm of the plate matching through the first-level form based on the design parameters of the processed cylindrical parts, and calculate the initial value range of the plate matching, including calculating the value range of the number of cylinder sections n, the length of the cylinder section Li, and the number of longitudinal seams N of the cylinder section; S3: Based on the secondary form, optimize the value accuracy within the initial value range of the panel configuration, and output the panel configuration plan based on the optimization results.

[0019] The plate matching method for multi-plate welded cylindrical parts of the present invention establishes a stock plate database and a screening form. Based on the design parameters of the processed cylindrical parts, the plate matching initial value range algorithm is first screened through a primary form to calculate theoretically feasible plate matching parameters, and then the value accuracy is optimized within the initial value range of the plate matching through a secondary form. The method can comprehensively consider the limitations of design parameters, stock plate data and related application conditions to output a relatively optimized solution. At the same time, the stock plate database updates the plate data information in real time based on the consumption and replenishment of the stock plates, which can ensure the reliability of data in continuous production, and can find the plates required for production from the inventory according to the recommended plate matching plan during the production implementation process.

[0020] In this embodiment, the plate data information includes the length, width, thickness, material, and quantity of the plate. The design parameters of the processed cylindrical parts include the wall thickness t, cylinder length L, and inner diameter d of the cylindrical parts. The optional sequence in the first-level form is a single-choice material sequence, which includes carbon steel, stainless steel, aluminum alloy, and copper alloy. Each single-choice material presets the corresponding initial value range algorithm for the matching plate. The optional sequence in the second-level form is an application condition sequence that can be selected as an indefinite item. The application condition sequence includes the minimum inventory plate length Llim1, the upper limit of the rolling processing length Llim2, and the upper limit of the transportation obstacle avoidance length Llim3. In this embodiment, the minimum inventory plate length Llim1 is retrieved from the data recorded in the inventory plate database, the upper limit of the rolling processing length Llim2=4M, and the upper limit of the transportation obstacle avoidance length Llim3=5.5M.

[0021] In this embodiment, some data recorded in the inventory plate database is shown in Table 1: Table 1 The following is a further detailed description of the plate matching method for multi-plate tailor-welded cylinder-type parts of the present invention by taking four cylinder-type parts of different specifications as examples.

[0022] The relevant design parameters of the processed cylindrical parts are shown in Table 2: Cylinder parts 1 Cylinder parts 2 Cylinder parts three Cylinder parts 4 Material Carbon Steel Carbon Steel Carbon Steel Carbon Steel Tube length (L / M) 1.8 4 8 12 Wall thickness (t / mm) 4 4 10 15 Inner diameter (d / M) 0.8 1.2 1.5 2 Table 2 When performing step S2, carbon steel is selected in the single-select material sequence of the primary form, and the corresponding plate matching initial value range algorithm is matched, specifically including the cylinder section number n algorithm, the cylinder section length Li algorithm, and the cylinder section longitudinal seam number N algorithm.

[0023] The calculation method of cylinder section length Li is as follows: Assume that the minimum value of Li is Li-min and the maximum value is Li-max; Li-min=MAX{2d (t≤5mm), 1.5d (t>5mm), L / 4 (L>10M), L / 3 (2M≤L<10M), L (L<2M)}; Li-max=MIN{4.5,L}; Li-min≤Li≤Li-max.

[0024] The algorithm for calculating the number of cylinder sections n is as follows: n=L / Li, and n is a positive integer; When L<2M, n≤2; When 2M≤L<5M, n≤4; When 5M≤L<10M, n≤5; When L>10M, n≥3.

[0025] The calculation method for the number of longitudinal seams N in the cylinder section is as follows: When d<1.5M, N≤2, When d≥1.5M, N≤6.

[0026] When performing step S3, all application condition sequences are selected in the secondary form to further limit the maximum value Li-max of Li. The algorithm is as follows: Li-max=MIN{Llim1, Llim2, Llim3}.

[0027] Based on the above algorithm for the initial value range of the carbon steel plate, the specific calculation process of four different specifications of cylinder parts is as follows: Cylinder parts 1: Calculation process of cylinder section length Li: Li-min=MAX{2d (t≤5mm), 1.5d (t>5mm), L / 4 (L>10M), L / 3 (2M≤L<10M), L (L<2M)}; Li-min=MAX{2×0.8, NULL, NULL, NULL, 1.8}=MAX{1.6, 1.8}=1.8; Li-max=MIN{4.5, L}=MIN{4.5, 1.8}=1.8; Li-min≤Li≤Li-max, Li=1.8M; Calculation process of cylinder section number n: n=L / Li=1.8 / 1.8=1, which satisfies the setting condition that n is a positive integer and n≤2 when L<2M; Calculation process of the number of longitudinal seams N of the cylinder section: d=0.8<1.5M, N≤2; When performing step S3, all application condition sequences are selected in the secondary form to further limit the maximum value of Li Li-max. Li-max=MIN{Llim1, Llim2, Llim3}=MIN{1.8, 4, 5.5}=1.8; Li-max=Li=1.8M, Based on the above calculation results, the system recommends board configuration parameters and outputs the following board configuration plan: Li=1.8M, n=1, N≤2; and it is recommended to give priority to the use of plates with plate number 0401 in stock.

[0028] Cylinder parts 2: Calculation process of cylinder section length Li: Li-min=MAX{2d (t≤5mm), 1.5d (t>5mm), L / 4 (L>10M), L / 3 (2M≤L<10M), L (L<2M)}; Li-min=MAX{2×1.2, NULL, NULL, 4 / 3, NULL}=MAX{2.4, 1.33}=1.33; Li-max=MIN{4.5, L}=MIN{4.5, 4}=4; Li-min≤Li≤Li-max, 1.33M≤Li≤4M; Calculation process of cylinder section number n: n=L / Li=L / Li-max~L / Li-min=4 / 4~4 / 1.33=1~3, satisfying the setting condition that n is a positive integer and when 2M≤L<5M, n≤4; Calculation process of the number of longitudinal seams N of the cylinder section: d=1.2<1.5M, N≤2; When performing step S3, all application condition sequences are selected in the secondary form to further limit the maximum value of Li Li-max. Without considering that the No. 0401 in the stock plate database record has been consumed in the production of cylinder parts, Li-max=MIN{Llim1, Llim2, Llim3}=MIN{1.8, 4, 5.5}=1.8; Li-max=Li=1.8M, This embodiment considers the situation that the No. 0401 in the inventory plate database record has been consumed in the production of cylinder parts. Li-max=MIN{Llim1, Llim2, Llim3}=MIN{2, 4, 5.5}=2; Li-max=Li=2M, Furthermore, n=L / Li=L / Li-max~L / Li-min=4 / 2~4 / 1.33=2~3 Based on the above calculation results, the system recommends board configuration parameters and outputs the following board configuration plan: 1.33M≤Li≤2M, n=2~3, N≤2; and it is recommended to give priority to the use of plates with plate number 0402 in stock.

[0029] Cylinder parts three: Calculation process of cylinder section length Li: Li-min=MAX{2d (t≤5mm), 1.5d (t>5mm), L / 4 (L>10M), L / 3 (2M≤L<10M), L (L<2M)}; Li-min=MAX{NULL, 1.5×1.5, NULL, 8 / 3, NULL}=MAX{2.25, 2.67}=2.67; Li-max=MIN{4.5, L}=MIN{4.5, 8}=4.5; Li-min≤Li≤Li-max, 2.67M≤Li≤4.5M; Calculation process of cylinder section number n: n=L / Li=L / Li-max~L / Li-min=8 / 4.5~8 / 2.67=2~3, satisfying the setting condition that n is a positive integer, when 5M≤L<10M, n≤5; Calculation process of the number of longitudinal seams N of the cylinder section: d=1.5≥1.5M, N≤6; When performing step S3, all application condition sequences are selected in the secondary form to further limit the maximum value of Li Li-max. Li-max=MIN{Llim1, Llim2, Llim3}=MIN{3, 4, 5.5}=3; Li-max=Li=3M, Furthermore, n=L / Li=L / Li-max~L / Li-min=8 / 3~8 / 2.67=3 Based on the above calculation results, the system recommends board configuration parameters and outputs the following board configuration plan: 2.67M≤Li≤3M, n=2~3, N≤6; and it is recommended to give priority to the use of plates with plate number 0801 in stock.

[0030] Cylinder parts 4: Calculation process of cylinder section length Li: Li-min=MAX{2d (t≤5mm), 1.5d (t>5mm), L / 4 (L>10M), L / 3 (2M≤L<10M), L (L<2M)}; Li-min=MAX{NULL, 1.5×2, 12 / 4, NULL, NULL}=MAX{3, 3}=3; Li-max=MIN{4.5, L}=MIN{4.5, 12}=4.5; Li-min≤Li≤Li-max, 3M≤Li≤4.5M; Calculation process of cylinder section number n: n=L / Li=L / Li-max~L / Li-min=12 / 4.5~12 / 3=3~4, satisfying the setting condition that n is a positive integer, when L>10M, n≥3; Calculation process of the number of longitudinal seams N of the cylinder section: d=2≥1.5M, N≤6; When performing step S3, all application condition sequences are selected in the secondary form to further limit the maximum value of Li Li-max. Li-max=MIN{Llim1, Llim2, Llim3}=MIN{4, 4, 5.5}=4; Li-max=Li=4M, Furthermore, n=L / Li=L / Li-max~L / Li-min=12 / 4~12 / 3=3~4 Based on the above calculation results, the system recommends board configuration parameters and outputs the following board configuration plan: 3M≤Li≤4M, n=3~4, N≤6; and it is recommended to give priority to the plate number 1501 in the inventory.

[0031] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A plate matching method for multi-plate welded cylinder parts, characterized in that: The following steps are involved: S1: Establishing a stock plate database and a screening form, the stock plate database records the plate data information related to the multi-plate welding production of cylinder parts in the stock, and updates the plate data information in real time based on the consumption and replenishment of the stock plates; the screening form includes a primary form for determining the algorithm for the initial value range of the plate matching, and a secondary form for optimizing the value accuracy based on application conditions within the initial value range of the plate matching; S2: input the design parameters of the processed cylindrical parts, and based on the design parameters of the processed cylindrical parts, select the initial value range algorithm of the plate matching through the first-level form, and calculate the initial value range of the plate matching, including calculating the value range of the number of cylinder sections n, the length of the cylinder section Li, and the number of longitudinal seams N of the cylinder section; S3: Based on the secondary form, optimize the value accuracy within the initial value range of the panel configuration, and output the panel configuration plan based on the optimization results.

2. The plate matching method for multi-plate welded cylinder parts according to claim 1 is characterized in that: The optional sequence in the primary form is a single-select material sequence, which includes carbon steel, stainless steel, aluminum alloy, and copper alloy. Each single-select material has a preset corresponding initial value range algorithm for the matching plate.

3. The plate matching method for multi-plate welded cylinder parts according to claim 2 is characterized in that: The optional sequence in the secondary form is an application condition sequence that can be selected as indefinite items, and the application condition sequence includes the minimum inventory plate length Llim1, the upper limit of the rolling processing length Llim2, and the upper limit of the transportation obstacle avoidance length Llim3.

4. The plate matching method for multi-plate tailor-welded cylinder parts according to claim 3 is characterized in that: The plate data information includes the length, width, thickness and material of the plate.

5. The plate matching method for multi-plate tailor-welded cylinder parts according to claim 4 is characterized in that: The design parameters of the processed cylindrical parts include the wall thickness t, the cylinder length L, and the inner diameter d of the cylindrical parts.

6. The plate matching method for multi-plate tailor-welded cylinder parts according to claim 5 is characterized in that: When performing the step S2, carbon steel is selected in the single-select material sequence of the primary form, and the corresponding plate matching initial value range algorithm is matched, specifically including the cylinder section number n algorithm, the cylinder section length Li algorithm, and the cylinder section longitudinal seam number N algorithm.

7. The plate matching method for multi-plate tailor-welded cylinder parts according to claim 6 is characterized in that: The cylinder length Li algorithm is as follows: Assume that the minimum value of Li is Li-min and the maximum value is Li-max; Li-min=MAX{2d (t≤5mm), 1.5d (t>5mm), L / 4 (L>10M), L / 3 (2M≤L<10M), L (L<2M)}; Li-max=MIN{4.5,L}; Li-min≤Li≤Li-max.

8. The plate matching method for multi-plate welded cylinder parts according to claim 7 is characterized in that: The cylinder section number n algorithm is as follows: n=L / Li, and n is a positive integer; When L<2M, n≤2; When 2M≤L<5M, n≤4; When 5M≤L<10M, n≤5; When L>10M, n≥3.

9. The plate matching method for multi-plate tailor-welded cylinder parts according to claim 8 is characterized in that: The calculation method of the number of longitudinal seams N of the cylinder section is as follows: When d<1.5M, N≤2, When d≥1.5M, N≤6.

10. The plate matching method for multi-plate welded cylinder parts according to claim 9 is characterized in that: When performing step S3, all application condition sequences are selected in the secondary table to further limit the maximum value Li-max of Li. The algorithm is as follows: Li-max=MIN{Llim1, Llim2, Llim3}.

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