Steel pipe continuous rolling parameter determination, wall thickness control method, device, equipment and medium

Abstract

The present invention relates to the technical field of steel pipe continuous rolling wall thickness control, and in particular to a method, device, equipment, and medium for determining parameters and controlling wall thickness of steel pipe continuous rolling. The method of the present invention first obtains multiple raw material sizes, multiple first target sizes, and multiple roll parameters; then, based on the multiple raw material sizes and the multiple first target sizes, the total extension coefficient of the continuous rolling mill is determined, and based on the total extension coefficient and the extension ratio coefficient of each stand, the first target cross-sectional area of ​​the steel pipe rolled by the stand is determined; then, for each stand, the gap value of the roll and the second target cross-sectional area are determined based on the corresponding roll parameters and the corresponding first target cross-sectional area; finally, the outlet speeds of the multiple stands are determined based on the multiple second target cross-sectional areas. The present invention allocates the target cross-sectional area of ​​steel pipe rolling to multiple stands through the total extension coefficient and the extension coefficient ratio, so that the load of each stand is balanced, the rolling strength of the steel pipe is adapted to the stand, and the efficiency of determining equipment parameters is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe continuous rolling wall thickness control, and in particular to a method, device, equipment and medium for determining steel pipe continuous rolling parameters and controlling wall thickness. Background Art

[0002] Seamless steel pipe is a long, hollow steel strip with no seams around its perimeter. Due to its lack of welds, uniform structure, and high strength, it is widely used in industries such as industry, construction, and machinery manufacturing. Larger diameter seamless steel pipes are often produced through hot rolling.

[0003] Hot-rolled seamless steel pipes are formed into finished products through heating the billet, perforating (forming a hollow shell), rolling (rolling and forming on a hot rolling mill), sizing / reducing (adjusting the outer diameter), and subsequent auxiliary processes. Hot rolling is a key step in the steel pipe forming process and greatly affects the quality of the produced steel pipes.

[0004] Currently, the most advanced seamless steel pipe rolling equipment generally adopts a continuous rolling structure. Continuous rolling equipment is characterized by high production efficiency and good consistency. However, because multiple rolling mills are connected in series, continuous rolling equipment has very high requirements for the adjustment and control accuracy of various rolling mill parameters. When the equipment parameters are not set properly, a lot of time and effort is required to adjust the equipment in the early stage, which seriously affects the production progress. Manual adjustment of various parameters of continuous rolling equipment is slow and inefficient.

[0005] Based on this, it is necessary to develop and design a method for determining the parameters of steel pipe continuous rolling. Summary of the Invention

[0006] The embodiments of the present invention provide a method, device, equipment and medium for determining steel pipe continuous rolling parameters and controlling wall thickness, which are used to solve the problem in the prior art that it is difficult to quickly determine steel pipe continuous rolling parameters.

[0007] In a first aspect, an embodiment of the present invention provides a method for determining parameters of continuous rolling of a steel pipe, comprising:

[0008] Acquire multiple raw material sizes, multiple first target sizes, and multiple roll parameters, wherein the first target size is the size of the steel pipe rolled by the continuous rolling equipment, the continuous rolling equipment includes multiple stands arranged in sequence, each roll parameter corresponds to a roll of a stand, and the raw material size is the size of the steel pipe before entering the continuous rolling equipment;

[0009] Determining a total extension coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determining a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total extension coefficient and the extension ratio coefficient of each stand;

[0010] For each stand, determining a roll gap value and a second target cross-sectional area based on corresponding roll parameters and a corresponding first target cross-sectional area, wherein the second target cross-sectional area is determined based on the roll gap value and the roll parameters, and a difference between the second target cross-sectional area and the first target cross-sectional area is within a set range;

[0011] The outlet velocities of the plurality of racks are determined based on the plurality of second target cross-sectional areas.

[0012] In one possible implementation, determining a total extension coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determining a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total extension coefficient and the extension ratio coefficient of each stand, includes:

[0013] using the cross-sectional area of ​​the primary rack inlet determined according to the plurality of raw material sizes as the rack inlet cross-sectional area;

[0014] using the cross-sectional area of ​​the final stage rack outlet determined according to the plurality of first target sizes as the rack outlet cross-sectional area;

[0015] Taking the ratio of the rack inlet cross-sectional area to the rack outlet cross-sectional area as the total extension coefficient;

[0016] Multiplying the total extension coefficient by the extension ratio coefficient of each rack respectively to obtain a plurality of rack preset extension coefficients;

[0017] The first target cross-sectional areas of the steel pipes rolled on the fixed racks are determined according to the preset extension coefficients of the multiple racks and the rack inlet cross-sectional areas, or the first target cross-sectional areas of the steel pipes rolled on the fixed racks are determined according to the preset extension coefficients of the multiple racks and the rack outlet cross-sectional areas.

[0018] In one possible implementation, for each stand, determining the gap value and the second target cross-sectional area of ​​the roll according to the corresponding roll parameters and the corresponding first target cross-sectional area includes:

[0019] Roll parameters include: roll pass and mandrel diameter;

[0020] For each rack, perform the following steps:

[0021] Get and initialize the first seam value;

[0022] Determine the intermediate target cross-sectional area by using a geometric method according to the first gap value, the roll pass and the mandrel diameter;

[0023] taking the difference between the first target cross-sectional area and the target cross-sectional area as the area difference;

[0024] If the area difference is within the set range, the intermediate target cross-sectional area is used as the second target cross-sectional area, and the first gap value is used as the gap value of the roller;

[0025] Otherwise, the first gap value is adjusted according to the area difference and the set range, and the process jumps to the step of determining the intermediate target cross-sectional area by using a geometric method according to the first gap value, the roll pass profile, and the mandrel diameter.

[0026] In a second aspect, an embodiment of the present invention provides a method for controlling the wall thickness of a steel pipe during continuous rolling, comprising:

[0027] Get the out-of-tolerance type of steel pipe wall thickness;

[0028] If the deviation type is overall wall thickness deviation, multiple first target cross-sectional areas are determined based on the overall wall thickness deviation, and multiple roll gap values ​​and multiple exit speeds are determined based on the multiple first target cross-sectional areas using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect, wherein each stand corresponds to one roll gap value and one exit speed;

[0029] If the deviation type is unilateral wall thickness deviation, multiple target racks are determined according to the unilateral wall thickness deviation position, multiple first target cross-sectional areas are adjusted according to the unilateral wall thickness deviation amount, and multiple roll gap values ​​and multiple exit speeds are determined based on the adjusted multiple first target cross-sectional areas using the method of the first aspect above.

[0030] If the deviation type is unilateral wall thickness deviation, multiple target racks are determined according to the unilateral wall thickness deviation position, and multiple first target cross-sectional areas are adjusted according to the unilateral wall thickness deviation amount. Based on the adjusted multiple first target cross-sectional areas, the method for determining the steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect is used to determine multiple roll gap values ​​and multiple exit speeds, wherein each rack corresponds to one roll gap value and one exit speed.

[0031] In one possible implementation, determining a plurality of first target cross-sectional areas based on the overall wall thickness deviation, and determining a plurality of roll gap values ​​and a plurality of exit speeds based on the plurality of first target cross-sectional areas using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect, includes:

[0032] The last rack is used as the target rack;

[0033] Determining a first target cross-sectional area of ​​the steel pipe rolled on the target stand according to the overall wall thickness deviation;

[0034] A target stand adjustment step: adjusting a second target cross-sectional area and a roll gap value of the target stand according to a first target cross-sectional area of ​​the steel pipe rolled on the target stand using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect;

[0035] determining the load of the target stand according to the adjusted second target cross-sectional area and the roll gap value;

[0036] If the load of the target rack meets the load threshold, adjusting the outlet speeds of the multiple racks according to the second target cross-sectional area of ​​the target rack, and adjusting the multiple racks according to the adjusted outlet speeds of the multiple racks and the adjusted gap values;

[0037] Otherwise, the difference between the load of the target rack and the load threshold is used as the load difference, the gap value of the target rack is determined according to the load difference, the previous rack of the target rack is used as the target rack, the first target cross-sectional area of ​​the target rack is determined according to the load difference, and the process jumps to the target rack adjustment step.

[0038] In one possible implementation, determining a plurality of first target cross-sectional areas based on the overall wall thickness deviation, and determining a plurality of roll gap values ​​and a plurality of exit speeds based on the plurality of first target cross-sectional areas using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect, includes:

[0039] adjusting a first target cross-sectional area of ​​steel pipes rolled by the multiple stands according to an initial load distribution ratio of the multiple stands;

[0040] Adjust the second target cross-sectional area and the roll gap value of each stand according to the adjusted first target cross-sectional area of ​​the steel pipes rolled by the multiple stands using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect;

[0041] Load calculation steps: for each stand, determining the stand load according to the adjusted second target cross-sectional area and the roll gap value;

[0042] If there is a rack load greater than the load threshold, the rack with the smallest load is found based on the multiple rack loads, the load of the rack with the smallest load is increased, the first target cross-sectional areas of the steel pipes rolled by the multiple racks are adjusted according to the new load ratio, and the second target cross-sectional area and the roll gap value of each rack are adjusted based on the adjusted first target cross-sectional areas of the steel pipes rolled by the multiple racks using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect, and the process jumps to the load calculation step;

[0043] Otherwise, the outlet speeds of the plurality of racks are adjusted according to the plurality of adjusted second target cross-sectional areas, and the plurality of racks are adjusted according to the adjusted outlet speeds of the plurality of racks and the adjusted gap values.

[0044] In one possible implementation, determining multiple target stands based on the unilateral wall thickness deviation position, adjusting multiple first target cross-sectional areas based on the unilateral wall thickness deviation amount, and determining multiple roll gap values ​​and multiple exit speeds based on the adjusted multiple first target cross-sectional areas using the steel pipe continuous rolling parameter determination method described in the first aspect or any possible implementation of the first aspect includes:

[0045] Selecting multiple odd-numbered racks or multiple even-numbered racks as multiple target racks according to the position of the single-side wall thickness deviation;

[0046] Adjusting the single-side wall thickness adjustment amounts of multiple target racks according to the initial load distribution ratio of the multiple racks;

[0047] Cross-sectional area determination step: adjusting a first target cross-sectional area of ​​the steel pipe rolled in the plurality of target stands according to the single-side wall thickness adjustment amount;

[0048] Adjust the second target cross-sectional area and the roll gap value of each stand according to the adjusted first target cross-sectional area of ​​the steel pipes rolled by the multiple stands using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect;

[0049] For each target stand, determine the single-side roll gap adjustment amount according to the roll gap value, and check the single-side roll gap adjustment amount for limit check;

[0050] If there is a target rack that does not meet the restriction inspection condition, readjust the single-side wall thickness adjustment amount of multiple target racks, and jump to the cross-sectional area determination step;

[0051] Otherwise, the outlet speeds of the plurality of racks are adjusted according to the plurality of adjusted second target cross-sectional areas, and the plurality of racks are adjusted according to the adjusted outlet speeds of the plurality of racks and the adjusted gap values.

[0052] In a third aspect, an embodiment of the present invention provides a device for determining parameters of continuous steel pipe rolling, for implementing the method for determining parameters of continuous steel pipe rolling as described in the first aspect or any possible implementation of the first aspect, the device for determining parameters of continuous steel pipe rolling comprising:

[0053] a parameter acquisition module, configured to acquire multiple raw material sizes, multiple first target sizes, and multiple roll parameters, wherein the first target size is the size of the steel pipe rolled by the continuous rolling equipment, the continuous rolling equipment being provided with multiple sequentially arranged stands, each roll parameter corresponding to a roll of a stand, and the raw material size being the size of the steel pipe before entering the continuous rolling equipment;

[0054] a target cross-sectional area determination module, configured to determine a total extension coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determine a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total extension coefficient and the extension ratio coefficient of each stand;

[0055] a target cross-sectional area adjustment module, configured to determine, for each stand, a roll gap value and a second target cross-sectional area based on corresponding roll parameters and the corresponding first target cross-sectional area, wherein the second target cross-sectional area is determined based on the roll gap value and the roll parameters, and a difference between the second target cross-sectional area and the first target cross-sectional area is within a set range;

[0056] as well as,

[0057] The outlet speed determination module is used to determine the outlet speeds of the multiple racks according to the multiple second target cross-sectional areas.

[0058] In a fourth aspect, an embodiment of the present invention provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the computer program, it implements the steps of the method described in the first aspect, any possible implementation of the first aspect, the second aspect, or any possible implementation of the second aspect.

[0059] In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the steps of the method described in the first aspect, any possible implementation of the first aspect, the second aspect, or any possible implementation of the second aspect.

[0060] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0061] An embodiment of the present invention discloses a method for determining parameters of continuous rolling of steel pipes, which first obtains multiple raw material sizes, multiple first target sizes and multiple roll parameters, wherein the first target size is the size of the steel pipe rolled by the continuous rolling equipment, the continuous rolling equipment is provided with multiple frames arranged in sequence, each roll parameter corresponds to the roll of a frame, and the raw material size is the size of the steel pipe before entering the continuous rolling equipment; then, the total extension coefficient of the continuous rolling mill is determined according to the multiple raw material sizes and the multiple first target sizes, and the first target cross-sectional area of ​​the steel pipe rolled by the frame is determined according to the total extension coefficient and the extension ratio coefficient of each frame; then, for each frame, the gap value and the second target cross-sectional area of ​​the roll are determined according to the corresponding roll parameters and the corresponding first target cross-sectional area, wherein the second target cross-sectional area is determined according to the gap value and the roll parameters, and the difference between the second target cross-sectional area and the first target cross-sectional area is within a set range; finally, the outlet speeds of the multiple frames are determined according to the multiple second target cross-sectional areas. The present invention allocates the target rolling cross-sectional area of ​​the steel pipe to multiple frames through the total elongation coefficient and the elongation coefficient ratio, so that the load of each frame is balanced and the rolling strength of the steel pipe is adapted to the frame, thereby improving the efficiency of determining equipment parameters. The gap value and exit speed are allocated to the frame according to the rolling area, so that the continuous rolling flow is balanced and the consistency of the steel pipe is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions 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 these drawings without paying any creative labor.

[0063] Figure 1 is a flow chart of a method for determining parameters of continuous steel pipe rolling provided by an embodiment of the present invention;

[0064] Figure 2 This is a flow chart of a method for controlling the wall thickness of a steel pipe continuous rolling provided by an embodiment of the present invention;

[0065] Figure 3 This is a functional block diagram of a device for determining parameters of continuous steel pipe rolling provided by an embodiment of the present invention;

[0066] Figure 4 This is a functional block diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0067] In the following description, specific details such as particular system structures and techniques are provided for purposes of illustration, not limitation, to facilitate a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in alternative embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0068] In order to make the objectives, technical solutions and advantages of the present invention more clear, the following will be described through specific implementation methods in conjunction with the accompanying drawings.

[0069] The following is a detailed description of an embodiment of the present invention. This example is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiment.

[0070] Figure 1 This is a flow chart of a method for determining steel pipe continuous rolling parameters provided in the first aspect of an embodiment of the present invention.

[0071] like Figure 1 As shown, it shows a flow chart of the implementation method of the steel pipe continuous rolling parameter determination method provided by the first aspect of the embodiment of the present invention, which is detailed as follows:

[0072] In step 101, multiple raw material sizes, multiple first target sizes, and multiple roll parameters are obtained, wherein the first target size is the size of the steel pipe rolled by the continuous rolling equipment. The continuous rolling equipment is provided with multiple racks arranged in sequence. Each roll parameter corresponds to the roll of a rack. The raw material size is the size of the steel pipe before entering the continuous rolling equipment.

[0073] In step 102, a total extension coefficient of the continuous rolling mill is determined according to the multiple raw material sizes and the multiple first target sizes, and a first target cross-sectional area of ​​the steel pipe rolled by the stand is determined according to the total extension coefficient and the extension ratio coefficient of each stand.

[0074] In some embodiments, determining a total extension coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determining a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total extension coefficient and the extension ratio coefficient of each stand, includes:

[0075] using the cross-sectional area of ​​the primary rack inlet determined according to the plurality of raw material sizes as the rack inlet cross-sectional area;

[0076] using the cross-sectional area of ​​the final stage rack outlet determined according to the plurality of first target sizes as the rack outlet cross-sectional area;

[0077] Taking the ratio of the rack inlet cross-sectional area to the rack outlet cross-sectional area as the total extension coefficient;

[0078] Multiplying the total extension coefficient by the extension ratio coefficient of each rack respectively to obtain a plurality of rack preset extension coefficients;

[0079] The first target cross-sectional areas of the steel pipes rolled on the fixed racks are determined according to the preset extension coefficients of the multiple racks and the rack inlet cross-sectional areas, or the first target cross-sectional areas of the steel pipes rolled on the fixed racks are determined according to the preset extension coefficients of the multiple racks and the rack outlet cross-sectional areas.

[0080] For example, the embodiment of the present invention first obtains the size of the raw material and the size of the steel pipe after continuous rolling. These size data generally include:

[0081] The parameters of the continuous rolling mill, such as the outer diameter of the inlet pipe, the wall thickness of the inlet pipe, the outer diameter of the outlet pipe, the wall thickness of the outlet pipe, the outlet pipe speed, the outer diameter of the mandrel, the diameter of the rolls of each stand, the roll pass, and the extension ratio of each stand, are then used to calculate the cross-sectional area of ​​the inlet stand using the first formula:

[0082]

[0083] In the above formula, is the inlet cross-sectional area, is the outer diameter of the raw material, is the wall thickness of the raw material, is pi.

[0084] Next, use the second formula to calculate the cross-sectional area of ​​the continuous rolling outlet:

[0085]

[0086] In the above formula, is the outlet cross-sectional area, is the outer diameter of the steel pipe after continuous rolling, It is the wall thickness of the steel pipe after continuous rolling.

[0087] Then use the third formula to calculate the total elongation coefficient:

[0088]

[0089] In the above formula, is the total elongation coefficient.

[0090] Since the extension coefficient of each rack is preset data, the extension coefficient of each rack can be determined:

[0091]

[0092] In the above formula, For the The extension factor of each rack, For the The extension ratio of each rack.

[0093] According to the extension coefficient of each rack, the cross-sectional area of ​​each rack can be obtained step by step:

[0094]

[0095] In the above formula, For the The outlet cross-sectional area of ​​each rack, For the The outlet cross-sectional area of ​​each rack.

[0096] Through the above formulas, the first target cross-sectional area (theoretical cross-sectional area) of the steel pipe at the outlet of each rack can be determined.

[0097] In step 103, for each frame, the gap value of the roll and the second target cross-sectional area are determined according to the corresponding roll parameters and the corresponding first target cross-sectional area, wherein the second target cross-sectional area is determined according to the gap value of the roll and the roll parameters, and the difference between the second target cross-sectional area and the first target cross-sectional area is within a set range.

[0098] In some embodiments, for each stand, determining the gap value and the second target cross-sectional area of ​​the roll according to the corresponding roll parameters and the corresponding first target cross-sectional area includes:

[0099] Roll parameters include: roll pass and mandrel diameter;

[0100] For each rack, perform the following steps:

[0101] Get and initialize the first seam value;

[0102] Determine the intermediate target cross-sectional area by using a geometric method according to the first gap value, the roll pass and the mandrel diameter;

[0103] taking the difference between the first target cross-sectional area and the target cross-sectional area as the area difference;

[0104] If the area difference is within the set range, the intermediate target cross-sectional area is used as the second target cross-sectional area, and the first gap value is used as the gap value of the roller;

[0105] Otherwise, the first gap value is adjusted according to the area difference and the set range, and the process jumps to the step of determining the intermediate target cross-sectional area by using a geometric method according to the first gap value, the roll pass profile, and the mandrel diameter.

[0106] For example, the area of ​​the steel pipe after the stand rolling is determined by the hole shape of the roll, the gap value of the roll and the diameter of the mandrel. Therefore, after knowing the above parameters, the cross-sectional area of ​​the steel pipe after the stand rolling can be determined by the geometric method based on the above parameters.

[0107] The cross-sectional area obtained by the geometric method is subtracted from the first target cross-sectional area obtained in the above steps. If the difference deviates from the set range, the gap value used in the geometric method is increased or decreased by a step value, and the adjusted gap value is substituted into the above geometric method again to determine the cross-sectional area. The above process is iterated repeatedly until the difference between the cross-sectional area determined by the geometric method and the first target cross-sectional area is within the set range. At this time, the gap value can be fixed as the gap value of the frame, and the cross-sectional area determined by the geometric method is used as the second target cross-sectional area (final cross-sectional area).

[0108] In step 104 , outlet velocities of the plurality of racks are determined according to the plurality of second target cross-sectional areas.

[0109] For example, after determining the target cross-sectional area, the outlet velocity of each rack can be determined according to the flow principle, which can be expressed as follows:

[0110]

[0111] In the above formula, For the The second target cross-sectional area of ​​the rack, For the The product of the outlet speed of each rack, For the The second target cross-sectional area of ​​the rack, For the The output speed of each rack.

[0112] The implementation method of the steel pipe continuous rolling parameter determination method of the present invention first obtains multiple raw material sizes, multiple first target sizes and multiple roll parameters, wherein the first target size is the size of the steel pipe rolled by the continuous rolling equipment, the continuous rolling equipment is provided with multiple frames arranged in sequence, each roll parameter corresponds to the roll of a frame, and the raw material size is the size of the steel pipe before entering the continuous rolling equipment; then the total extension coefficient of the continuous rolling mill is determined according to the multiple raw material sizes and the multiple first target sizes, and the first target cross-sectional area of ​​the steel pipe rolled by the frame is determined according to the total extension coefficient and the extension ratio coefficient of each frame; then for each frame, the gap value and the second target cross-sectional area of ​​the roll are determined according to the corresponding roll parameters and the corresponding first target cross-sectional area, wherein the second target cross-sectional area is determined according to the gap value and the roll parameters, and the difference between the second target cross-sectional area and the first target cross-sectional area is within a set range; finally, the outlet speeds of multiple frames are determined according to the multiple second target cross-sectional areas. The present invention allocates the target rolling cross-sectional area of ​​the steel pipe to multiple frames through the total elongation coefficient and the elongation coefficient ratio, so that the load of each frame is balanced and the rolling strength of the steel pipe is adapted to the frame, thereby improving the efficiency of determining equipment parameters. The gap value and exit speed are allocated to the frame according to the rolling area, so that the continuous rolling flow is balanced and the consistency of the steel pipe is good.

[0113] Figure 2 This is a flow chart of a method for controlling the wall thickness of a steel pipe in continuous rolling according to a first aspect of an embodiment of the present invention.

[0114] like Figure 2 As shown, it shows a flow chart of the implementation of the steel pipe continuous rolling wall thickness control method provided by the first aspect of the embodiment of the present invention, which is detailed as follows:

[0115] In step 201, the out-of-tolerance type of the steel pipe wall thickness is obtained.

[0116] In step 202, if the deviation type is the overall wall thickness deviation, multiple first target cross-sectional areas are determined according to the overall wall thickness deviation, and based on the multiple first target cross-sectional areas, the method for determining the steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect is used to determine multiple roll gap values ​​and multiple exit speeds, wherein each frame corresponds to a roll gap value and an exit speed.

[0117] In some embodiments, determining a plurality of first target cross-sectional areas based on the overall wall thickness deviation, and determining a plurality of roll gap values ​​and a plurality of exit speeds based on the plurality of first target cross-sectional areas using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect, includes:

[0118] The last rack is used as the target rack;

[0119] Determining a first target cross-sectional area of ​​the steel pipe rolled in the target stand according to the overall wall thickness deviation;

[0120] A target stand adjustment step: adjusting a second target cross-sectional area and a roll gap value of the target stand according to a first target cross-sectional area of ​​the steel pipe rolled on the target stand using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect;

[0121] determining the load of the target stand according to the adjusted second target cross-sectional area and the roll gap value;

[0122] If the load of the target rack meets the load threshold, adjusting the outlet speeds of the multiple racks according to the second target cross-sectional area of ​​the target rack, and adjusting the multiple racks according to the adjusted outlet speeds of the multiple racks and the adjusted gap values;

[0123] Otherwise, the difference between the load of the target rack and the load threshold is used as the load difference, the gap value of the target rack is determined according to the load difference, the previous rack of the target rack is used as the target rack, the first target cross-sectional area of ​​the target rack is determined according to the load difference, and the process jumps to the target rack adjustment step.

[0124] In some embodiments, determining a plurality of first target cross-sectional areas based on the overall wall thickness deviation, and determining a plurality of roll gap values ​​and a plurality of exit speeds based on the plurality of first target cross-sectional areas using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect, includes:

[0125] adjusting a first target cross-sectional area of ​​steel pipes rolled by the multiple stands according to an initial load distribution ratio of the multiple stands;

[0126] Adjust the second target cross-sectional area and the roll gap value of each stand according to the adjusted first target cross-sectional area of ​​the steel pipes rolled by the multiple stands using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect;

[0127] Load calculation steps: for each stand, determining the stand load according to the adjusted second target cross-sectional area and the roll gap value;

[0128] If there is a rack load greater than the load threshold, the rack with the smallest load is found based on the multiple rack loads, the load of the rack with the smallest load is increased, the first target cross-sectional areas of the steel pipes rolled by the multiple racks are adjusted according to the new load ratio, and the second target cross-sectional area and the roll gap value of each rack are adjusted based on the adjusted first target cross-sectional areas of the steel pipes rolled by the multiple racks using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect, and the process jumps to the load calculation step;

[0129] Otherwise, the outlet speeds of the plurality of racks are adjusted according to the plurality of adjusted second target cross-sectional areas, and the plurality of racks are adjusted according to the adjusted outlet speeds of the plurality of racks and the adjusted gap values.

[0130] Illustratively, the second aspect of the present invention provides a method for controlling the wall thickness of continuous rolling of steel pipes, which is mainly used to adjust the wall thickness of steel pipes during the production process. Since the wall thickness deviation can be divided into overall wall thickness deviation and unilateral wall thickness deviation, the present invention adopts different control methods based on the different types of wall thickness deviation.

[0131] In terms of overall wall thickness deviation, the first method provided by the present invention is to collect wall thickness data returned by the final stage frame based on the continuous rolling equipment, process the wall thickness average of each section into the wall thickness average of the entire length, and then adjust the wall thickness according to the wall thickness deviation. After the wall thickness adjustment is completed, since the inner diameter is the same as the core rod diameter, the adjusted cross-sectional area can be determined. This cross-sectional area is used as the first target cross-sectional area and the gap value and outlet speed are determined using the method provided in the first aspect. The load of the frame is checked according to this gap value and outlet speed. If the load conditions are met, the frame is adjusted according to this gap value and outlet speed.

[0132] If the load condition is not met, the wall thickness adjustment amount of the previous level is given based on the wall thickness deviation that can be consumed by the final frame. The frame of the previous level adjusts the wall thickness according to the wall thickness adjustment amount and determines the cross-sectional area after the wall thickness adjustment. The same as the previous steps, the method of the first aspect is used to determine the sewing value and exit speed of the frame of the previous level, and finally determine the load of the frame, and verify whether the previous frame meets the load condition. If it does, adjust the frame according to the adjusted sewing and exit speeds.

[0133] That is, in the embodiment of the present invention, the adjustment amount of the frame is adjusted step by step according to the load of the frame, so as to adjust the wall thickness of the steel pipe under the premise of satisfying the load of the frame.

[0134] In terms of overall wall thickness deviation, the second method provided by the present invention is to collect wall thickness data returned by the last stage frame based on the continuous rolling equipment, process the wall thickness average of each section into the wall thickness average of the entire length, and then adjust the wall thickness of each stage frame according to the initial load distribution ratio of each stage frame. After the wall thickness of each stage frame is adjusted, it can be seen from the description of the above steps that the cross-sectional area of ​​the steel pipe at the outlet of the frame after the wall thickness is adjusted can be determined. This cross-sectional area is used as the first target cross-sectional area to determine the gap value and outlet speed using the method provided in the first aspect. The load of the frame is checked based on this gap value and outlet speed. If the load condition is met, the frames at each stage are adjusted according to the adjusted gap value and outlet speed.

[0135] If it is not satisfied, the load distribution ratio of each rack is readjusted. Generally, the load distribution ratio is adjusted by increasing the load distribution ratio of the rack with smaller load. After the distribution ratio is adjusted, the wall thickness of each rack is adjusted according to the adjusted load distribution ratio of each rack. Then, the above process of determining and verifying the load of each rack is repeated.

[0136] Both of the above methods adjust the overall wall thickness of the rolled steel pipe on the basis of ensuring equipment load and operation safety, thereby ensuring the safety of equipment operation and the reliability of product quality.

[0137] In step 203, if the deviation type is a single-sided wall thickness deviation, multiple target racks are determined according to the single-sided wall thickness deviation position, multiple first target cross-sectional areas are adjusted according to the single-sided wall thickness deviation amount, and based on the adjusted multiple first target cross-sectional areas, the method for determining the steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect is used to determine multiple roll gap values ​​and multiple exit speeds, wherein each rack corresponds to a roll gap value and an exit speed.

[0138] In some embodiments, determining multiple target stands according to the unilateral wall thickness deviation position, adjusting multiple first target cross-sectional areas according to the unilateral wall thickness deviation amount, and determining multiple roll gap values ​​and multiple exit speeds based on the adjusted multiple first target cross-sectional areas using the steel pipe continuous rolling parameter determination method described in the first aspect or any possible implementation of the first aspect includes:

[0139] Selecting multiple odd-numbered racks or multiple even-numbered racks as multiple target racks according to the position of the single-side wall thickness deviation;

[0140] Adjusting the single-side wall thickness adjustment amounts of multiple target racks according to the initial load distribution ratio of the multiple racks;

[0141] Cross-sectional area determination step: adjusting a first target cross-sectional area of ​​the steel pipe rolled in the plurality of target stands according to the single-side wall thickness adjustment amount;

[0142] Adjust the second target cross-sectional area and the roll gap value of each stand according to the adjusted first target cross-sectional area of ​​the steel pipes rolled by the multiple stands using the method for determining steel pipe continuous rolling parameters as described in the first aspect or any possible implementation of the first aspect;

[0143] For each target stand, determine the single-side roll gap adjustment amount according to the roll gap value, and check the single-side roll gap adjustment amount for limit check;

[0144] If there is a target rack that does not meet the restriction inspection condition, readjust the single-side wall thickness adjustment amount of multiple target racks, and jump to the cross-sectional area determination step;

[0145] Otherwise, the outlet speeds of the plurality of racks are adjusted according to the plurality of adjusted second target cross-sectional areas, and the plurality of racks are adjusted according to the adjusted outlet speeds of the plurality of racks and the adjusted gap values.

[0146] Exemplarily, with respect to the control of unilateral wall thickness deviation, the present invention first processes the wall thickness average of each cross-section into the wall thickness average of the entire length based on the wall thickness data returned by the continuous rolling equipment, and then determines multiple odd-numbered racks or multiple even-numbered racks as multiple target racks based on the position of the unilateral wall thickness deviation, and then adjusts the wall thickness of the multiple target racks according to the initial load distribution ratio of each level of rack. After the wall thickness of the multiple target racks is adjusted, it can be seen from the description of the aforementioned steps that the cross-sectional area of ​​the steel pipe at the rack outlet after the wall thickness is adjusted can be determined. The cross-sectional area is used as the first target cross-sectional area to determine the gap value and the outlet speed using the method provided in the first aspect. At this time, the gap value is subjected to an adjustment limit check. If the limit check condition is met, the racks at each level are adjusted according to the adjusted gap value and outlet speed.

[0147] If the limit check condition is not met, the wall thickness adjustment amounts of multiple target racks are reallocated, and the above process of obtaining the adjusted seam value and checking whether the seam value meets the check condition is repeated until the limit check condition is met.

[0148] It should be understood that the size of the serial numbers of each step in the above embodiment does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0149] The following is an embodiment of the device of the present invention. For details not described in detail, please refer to the corresponding method embodiment described above.

[0150] Figure 3 This is a functional block diagram of a device for determining steel pipe continuous rolling parameters provided by an embodiment of the present invention, referring to Figure 3 The device for determining parameters of continuous steel pipe rolling includes: a parameter acquisition module 301, a target cross-sectional area determination module 302, a target cross-sectional area adjustment module 303, and an outlet speed determination module 304, wherein:

[0151] The parameter acquisition module 301 is used to acquire multiple raw material sizes, multiple first target sizes, and multiple roll parameters, wherein the first target size is the size of the steel pipe rolled by the continuous rolling mill. The continuous rolling mill has multiple stands arranged in sequence, and each roll parameter corresponds to a roll of a stand. The raw material size is the size of the steel pipe before entering the continuous rolling mill.

[0152] a target cross-sectional area determination module 302 for determining a total elongation coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determining a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total elongation coefficient and the elongation ratio coefficient of each stand;

[0153] a target cross-sectional area adjustment module 303 for determining, for each stand, a roll gap value and a second target cross-sectional area based on corresponding roll parameters and the corresponding first target cross-sectional area, wherein the second target cross-sectional area is determined based on the roll gap value and the roll parameters, and a difference between the second target cross-sectional area and the first target cross-sectional area is within a set range;

[0154] The outlet speed determination module 304 is configured to determine the outlet speeds of the plurality of racks according to the plurality of second target cross-sectional areas.

[0155] Figure 4 : is a functional block diagram of an electronic device provided by an embodiment of the present invention. Figure 4 As shown, the electronic device 4 of this embodiment includes: a processor 400 and a memory 401, wherein the memory 401 stores a computer program 402 that can be run on the processor 400. When the processor 400 executes the computer program 402, the steps in the above-mentioned method for determining the parameters of the continuous rolling of steel pipes and the embodiments are implemented, for example Figure 1 Steps 101 to 104 are shown.

[0156] Illustratively, the computer program 402 may be divided into one or more modules / units, and the one or more modules / units are stored in the memory 401 and executed by the processor 400 to implement the present invention.

[0157] The electronic device 4 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The electronic device 4 may include, but is not limited to, a processor 400 and a memory 401. Those skilled in the art will understand that Figure 4 It is only an example of the electronic device 4 and does not constitute a limitation of the electronic device 4. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the electronic device 4 may also include input and output devices, network access devices, buses, etc.

[0158] The processor 400 may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0159] The memory 401 may be an internal storage unit of the electronic device 4, such as a hard drive or memory of the electronic device 4. The memory 401 may also be an external storage device of the electronic device 4, such as a plug-in hard drive, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card, etc. equipped on the electronic device 4. Furthermore, the memory 401 may include both an internal storage unit of the electronic device 4 and an external storage device. The memory 401 is used to store the computer program 402 and other programs and data required by the electronic device 4. The memory 401 may also be used to temporarily store data that has been output or is about to be output.

[0160] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the implementation method can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method implementation method, and will not be repeated here.

[0161] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0162] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0163] In the embodiments provided by the present invention, it should be understood that the disclosed devices / electronic devices and methods can be implemented in other ways. For example, the device / electronic device embodiments described above are merely illustrative. For example, the division of the modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0164] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of this embodiment.

[0165] In addition, the functional units in various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0166] If the integrated module / unit is implemented as 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 present invention can also implement all or part of the processes in the above-mentioned method embodiments by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When executed by a processor, the computer program can implement the steps of the above-mentioned method and device embodiments. The computer program includes computer program code, which can be in source code form, object code form, executable file, or some intermediate form. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium.

[0167] The above-described 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. 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 various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A method for determining parameters of continuous rolling of steel pipes, characterized in that: include: Acquire multiple raw material sizes, multiple first target sizes, and multiple roll parameters, wherein the first target size is the size of the steel pipe rolled by the continuous rolling equipment, the continuous rolling equipment includes multiple stands arranged in sequence, each roll parameter corresponds to a roll of a stand, and the raw material size is the size of the steel pipe before entering the continuous rolling equipment; Determining a total extension coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determining a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total extension coefficient and the extension ratio coefficient of each stand; For each stand, determining the gap value and the second target cross-sectional area of ​​the roll according to the corresponding roll parameters and the corresponding first target cross-sectional area includes: The second target cross-sectional area is determined according to the gap value of the roll and the roll parameters, and the difference between the second target cross-sectional area and the first target cross-sectional area is within a set range. The roll parameters include: the roll pass profile and the mandrel diameter; For each rack, perform the following steps: Get and initialize the first seam value; Determine the intermediate target cross-sectional area by using a geometric method according to the first gap value, the roll pass and the mandrel diameter; taking the difference between the first target cross-sectional area and the target cross-sectional area as the area difference; If the area difference is within the set range, the intermediate target cross-sectional area is used as the second target cross-sectional area, and the first gap value is used as the gap value of the roller; Otherwise, adjusting the first gap value according to the area difference and the set range, and jumping to the step of determining the intermediate target cross-sectional area by using a geometric method according to the first gap value, the roll pass profile, and the mandrel diameter; The outlet velocities of the plurality of racks are determined based on the plurality of second target cross-sectional areas.

2. The method for determining steel pipe continuous rolling parameters according to claim 1, characterized in that: The method of determining a total extension coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determining a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total extension coefficient and the extension ratio coefficient of each stand, comprises: using the cross-sectional area of ​​the primary rack inlet determined according to the plurality of raw material sizes as the rack inlet cross-sectional area; using the cross-sectional area of ​​the final stage rack outlet determined according to the plurality of first target sizes as the rack outlet cross-sectional area; Taking the ratio of the rack inlet cross-sectional area to the rack outlet cross-sectional area as the total extension coefficient; Multiplying the total extension coefficient by the extension ratio coefficient of each rack respectively to obtain a plurality of rack preset extension coefficients; The first target cross-sectional area of ​​the steel pipes rolled in the multiple racks is determined according to the preset extension coefficients of the multiple racks and the rack inlet cross-sectional area, or the first target cross-sectional area of ​​the steel pipes rolled in the multiple racks is determined according to the preset extension coefficients of the multiple racks and the rack outlet cross-sectional area.

3. A method for controlling the wall thickness of a steel pipe during continuous rolling, characterized in that: include: Get the out-of-tolerance type of steel pipe wall thickness; If the deviation type is overall wall thickness deviation, a plurality of first target cross-sectional areas are determined according to the overall wall thickness deviation, and a plurality of roll gap values ​​and a plurality of exit speeds are determined according to the plurality of first target cross-sectional areas using the method according to any one of claims 1 to 2, wherein each stand corresponds to one roll gap value and one exit speed; If the deviation type is unilateral wall thickness deviation, multiple target stands are determined according to the unilateral wall thickness deviation position, and multiple first target cross-sectional areas are adjusted according to the unilateral wall thickness deviation amount. Based on the adjusted multiple first target cross-sectional areas, multiple roll gap values ​​and multiple exit speeds are determined using the method according to any one of claims 1-2, wherein each stand corresponds to one roll gap value and one exit speed.

4. The method for controlling the wall thickness of a steel pipe continuous rolling according to claim 3, characterized in that: Determining a plurality of first target cross-sectional areas according to the overall wall thickness deviation, and determining a plurality of roll gap values ​​and a plurality of exit speeds according to the plurality of first target cross-sectional areas using the method according to any one of claims 1 to 2, comprises: The last rack is used as the target rack; Determining a first target cross-sectional area of ​​the steel pipe rolled in the target stand according to the overall wall thickness deviation; Target stand adjustment step: adjusting the second target cross-sectional area and the roll gap value of the target stand according to the first target cross-sectional area of ​​the steel pipe rolled in the target stand using the method according to any one of claims 1 to 2; determining the load of the target stand according to the adjusted second target cross-sectional area and the roll gap value; If the load of the target rack meets the load threshold, adjusting the outlet speeds of the multiple racks according to the second target cross-sectional area of ​​the target rack, and adjusting the multiple racks according to the adjusted outlet speeds of the multiple racks and the adjusted gap values; Otherwise, the difference between the load of the target rack and the load threshold is used as the load difference, the gap value of the target rack is determined according to the load difference, the previous rack of the target rack is used as the target rack, the first target cross-sectional area of ​​the target rack is determined according to the load difference, and the process jumps to the target rack adjustment step.

5. The method for controlling the wall thickness of a steel pipe continuous rolling according to claim 3, characterized in that: Determining a plurality of first target cross-sectional areas according to the overall wall thickness deviation, and determining a plurality of roll gap values ​​and a plurality of exit speeds according to the plurality of first target cross-sectional areas using the method according to any one of claims 1 to 2, comprises: adjusting a first target cross-sectional area of ​​steel pipes rolled by the multiple stands according to an initial load distribution ratio of the multiple stands; According to the adjusted first target cross-sectional area of ​​the steel pipe rolled by the multiple stands, the second target cross-sectional area and the roll gap value of each stand are adjusted using the method according to any one of claims 1 to 2; Load calculation steps: for each stand, determining the stand load according to the adjusted second target cross-sectional area and the roll gap value; If there is a rack load greater than the load threshold, find the rack with the smallest load based on the multiple rack loads, increase the load on the rack with the smallest load, adjust the first target cross-sectional area of ​​the steel pipe rolled by the multiple racks according to the new load ratio, and adjust the second target cross-sectional area and the roll gap value of each rack based on the adjusted first target cross-sectional area of ​​the steel pipe rolled by the multiple racks using the method according to any one of claims 1-2, and jump to the load calculation step; Otherwise, the outlet speeds of the plurality of racks are adjusted according to the plurality of adjusted second target cross-sectional areas, and the plurality of racks are adjusted according to the adjusted outlet speeds of the plurality of racks and the adjusted gap values.

6. The method for controlling the wall thickness of a steel pipe continuous rolling according to any one of claims 3 to 5, characterized in that: The method of determining a plurality of target racks according to the position of the unilateral wall thickness deviation, adjusting a plurality of first target cross-sectional areas according to the unilateral wall thickness deviation, and determining a plurality of roll gap values ​​and a plurality of exit speeds according to the adjusted plurality of first target cross-sectional areas using the method according to any one of claims 1 to 2 comprises: Selecting multiple odd-numbered racks or multiple even-numbered racks as multiple target racks according to the position of the single-side wall thickness deviation; Adjusting the single-side wall thickness adjustment amounts of multiple target racks according to the initial load distribution ratio of the multiple racks; Cross-sectional area determination step: adjusting a first target cross-sectional area of ​​the steel pipe rolled in the plurality of target stands according to the single-side wall thickness adjustment amount; According to the adjusted first target cross-sectional area of ​​the steel pipe rolled by the multiple stands, the second target cross-sectional area and the roll gap value of each stand are adjusted using the method according to any one of claims 1 to 2; For each target stand, determine the single-side roll gap adjustment amount according to the roll gap value, and check the single-side roll gap adjustment amount for limit check; If there is a target rack that does not meet the restriction inspection condition, readjust the single-side wall thickness adjustment amount of multiple target racks, and jump to the cross-sectional area determination step; Otherwise, the outlet speeds of the plurality of racks are adjusted according to the plurality of adjusted second target cross-sectional areas, and the plurality of racks are adjusted according to the adjusted outlet speeds of the plurality of racks and the adjusted gap values.

7. A device for determining parameters of continuous rolling of steel pipes, characterized in that: For implementing the method for determining parameters of continuous steel pipe rolling according to any one of claims 1 to 2, the device for determining parameters of continuous steel pipe rolling comprises: a parameter acquisition module, configured to acquire multiple raw material sizes, multiple first target sizes, and multiple roll parameters, wherein the first target size is the size of the steel pipe rolled by the continuous rolling equipment, the continuous rolling equipment being provided with multiple sequentially arranged stands, each roll parameter corresponding to a roll of a stand, and the raw material size being the size of the steel pipe before entering the continuous rolling equipment; a target cross-sectional area determination module, configured to determine a total extension coefficient of the continuous rolling mill according to the multiple raw material sizes and the multiple first target sizes, and determine a first target cross-sectional area of ​​the steel pipe rolled by the stand according to the total extension coefficient and the extension ratio coefficient of each stand; a target cross-sectional area adjustment module, configured to determine, for each stand, a roll gap value and a second target cross-sectional area based on corresponding roll parameters and the corresponding first target cross-sectional area, wherein the second target cross-sectional area is determined based on the roll gap value and the roll parameters, and a difference between the second target cross-sectional area and the first target cross-sectional area is within a set range; as well as, The outlet speed determination module is used to determine the outlet speeds of the multiple racks according to the multiple second target cross-sectional areas.

8. An electronic device comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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