Centrifugal compressor dry gas seal piping welding method, device, equipment and medium
The type and bending dimensions of the dry gas sealing pipeline of the centrifugal compressor were determined by calculating the pipeline type and size, which solved the welding quality problem and achieved precise alignment and consistent welding of the pipeline.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENYANG TURBO MASCH CORP
- Filing Date
- 2024-06-11
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, the welding of the dry gas sealing hole of the centrifugal compressor has quality problems such as misalignment, welding slag and overflow, which makes it difficult to guarantee consistency and accuracy.
The type of pipeline to be welded and the alignment plane of the flange center are determined by the pipeline type calculation model. The bending dimensions are calculated by the pipeline size calculation model. The pipeline is then precisely aligned and welded through bending and welding.
This improved the consistency and height of the arrangement of multiple pipes to be welded, ensuring the accuracy and consistency of the welding quality.
Smart Images
Figure CN118595766B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of compressor technology, and more specifically, to a method, apparatus, equipment, and medium for welding dry gas sealing pipelines of a centrifugal compressor. Background Technology
[0002] Most MCL centrifugal compressor dry gas sealing holes have bidirectional spatial angles. With increasing product quality requirements, the consistency in height and arrangement of the connecting pipes and flanges to these holes is becoming increasingly stringent. Currently, the bending and cutting of connecting pipes to the dry gas sealing holes are based on operator experience, leading to quality problems such as misalignment, weld slag, and overflow during welding. This issue urgently needs to be addressed. Summary of the Invention
[0003] In view of the above situation, this application provides a method, apparatus, equipment and medium for welding dry gas sealing pipelines of centrifugal compressors, which aims to solve the above problems or at least partially solve the above problems.
[0004] In a first aspect, this application provides a method for welding a dry gas sealing pipeline of a centrifugal compressor, comprising:
[0005] Get the configuration parameter table;
[0006] Based on the pre-set pipeline type calculation model, the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded are determined according to the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane;
[0007] Based on the pre-set pipeline size calculation model, the bending dimensions of the pipeline to be welded are calculated according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table.
[0008] According to the bending dimensions of the pipeline to be welded, the pipeline to be welded is bent and shaped.
[0009] Welding is then performed on the pipes to be welded after bending and shaping.
[0010] Preferably, the configuration parameter table includes parameter items and pipe items to be welded;
[0011] The parameters include the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the radius of the pipeline, the total height of the pipeline, the center distance of the pipeline, and the flange height.
[0012] The pipeline item to be welded includes the pipeline number.
[0013] Preferably, the step of determining the type and alignment plane of the pipe to be welded based on the pre-set pipe type calculation model and the configuration parameter table includes:
[0014] Obtain the axial angle, radial angle, axial distance, sealing body radius, and pipeline center distance of the dry gas sealing hole corresponding to the pipeline to be welded;
[0015] Based on the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, and the center distance of the pipeline to be welded, the X-axis coordinate value of the flange is calculated.
[0016] Based on the X-axis coordinate value of the flange, determine the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded.
[0017] Preferably, determining the type of pipeline to be welded based on the flange X-axis coordinate value includes:
[0018] When the X-axis coordinate value of the flange is less than 0, the type of the pipeline to be welded is determined to be double bend, and the alignment plane of the flange center of the pipeline to be welded is the adjusted alignment plane.
[0019] When the X-axis coordinate value of the flange is greater than 0, the type of the pipeline to be welded is determined to be a single bend, and the alignment plane of the flange center of the pipeline to be welded is the original alignment plane.
[0020] Preferably, the step of calculating the bending dimensions of the pipe to be welded based on a pre-set pipe size calculation model, according to the determined type of pipe to be welded and the configuration parameter table, includes:
[0021] When it is determined that the type of the pipeline to be welded is a single bend, the pipeline size calculation model corresponding to the single bend type is determined as the first pipeline size calculation model;
[0022] Based on the original alignment plane, and according to the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the radius of the pipeline, the total height of the pipeline, the center distance of the pipeline, and the flange height, the first length, the second length, the total length, and the single bend angle of the pipeline to be welded are calculated based on the first pipeline size calculation model.
[0023] Preferably, the step of calculating the bending dimensions of the pipe to be welded based on a pre-set pipe size calculation model, according to the determined type of pipe to be welded and the configuration parameter table, further includes:
[0024] Obtain the alignment adjustment value and the final bend plane;
[0025] When the type of the pipeline to be welded is determined to be a double bend, the pipeline size calculation model corresponding to the double bend type is determined as the second pipeline size calculation model or the third pipeline size calculation model according to the final plane of the bend.
[0026] Based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the second pipeline size calculation model, the first length, second length, third length, total length, first bending angle, and second bending angle of the pipeline to be welded are calculated based on the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the pipeline radius, the total height of the pipeline, the center distance of the pipeline, the flange height, and the alignment adjustment value, according to the second pipeline size calculation model.
[0027] Based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the third pipeline size calculation model, the first length, second length, third length, total length, first bending angle, and second bending angle of the pipeline to be welded are calculated based on the axial included angle of the dry gas sealing hole, the radial included angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the radius of the pipeline, the total height of the pipeline, the center distance of the pipeline, and the flange height, according to the third pipeline size calculation model.
[0028] Preferably, the method further includes:
[0029] Obtain the axial included angle of the dry gas sealing hole, the radial included angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, and the radius at the initial position of the milling head;
[0030] Based on the axial included angle of the dry gas sealing hole, the radial included angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, and the radius at the initial position of the milling head, the horizontal rotation angle, the vertical rotation angle, and the machining depth of the milling head are calculated using a pre-set hole machining calculation model.
[0031] The dry gas sealing hole is machined according to the horizontal rotation angle of the milling head, the vertical rotation angle of the milling head, and the machining depth of the milling head.
[0032] Secondly, this application provides a welding device for dry gas sealing pipeline of a centrifugal compressor, and an acquisition module for acquiring a configuration parameter table;
[0033] The judgment module is used to determine the type of the pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded based on the pre-set pipeline type calculation model and the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane;
[0034] The calculation module is used to calculate the bending dimensions of the pipeline to be welded based on a pre-set pipeline size calculation model, according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table.
[0035] The pipe bending module is used to bend and shape the pipe to be welded according to the bending dimensions of the pipe to be welded.
[0036] The welding module is used to weld the pipes to be welded after bending and shaping.
[0037] Thirdly, this application provides a computer device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the centrifugal compressor dry gas sealing pipeline welding method as described in the first aspect.
[0038] Fourthly, this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the centrifugal compressor dry gas sealing pipeline welding method described in the first aspect.
[0039] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:
[0040] This application, based on a pipeline type calculation model, can determine whether the pipeline to be welded is a single bend or a double bend, and the alignment plane of the flange center of the pipeline to be welded. Determining the alignment plane improves the consistency of the arrangement of multiple pipelines to be welded. Based on the pipeline size calculation model, the bending dimensions of the pipeline to be welded can be determined, and bending is performed according to these dimensions, improving the overall consistency of the pipelines to be welded. Attached Figure Description
[0041] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0042] Figure 1 This is a schematic diagram of an application environment for a centrifugal compressor dry gas sealing pipeline welding method according to an embodiment of the present invention;
[0043] Figure 2 This is a schematic flowchart of a method for welding a dry gas sealing pipeline of a centrifugal compressor according to an embodiment of the present invention;
[0044] Figure 3 This is a schematic diagram of the axial cross-sectional structure of the centrifugal compressor casing in one embodiment of the present invention;
[0045] Figure 4This is a schematic diagram of the radial cross-sectional structure of the centrifugal compressor casing in one embodiment of the present invention;
[0046] Figure 5 This is a schematic diagram of a single-bend structure in one embodiment of the present invention;
[0047] Figure 6 This is a schematic diagram of the dry gas sealing pipeline arrangement of a centrifugal compressor in one embodiment of the present invention;
[0048] Figure 7 This is a schematic diagram of a double-bend structure in one embodiment of the present invention;
[0049] Figure 8 This is a schematic diagram comparing the double-bend structure before and after adjustment in one embodiment of the present invention;
[0050] Figure 9 This is a schematic diagram of a welding device for a dry gas sealing pipeline of a centrifugal compressor in one embodiment of the present invention;
[0051] Figure 10 This is a schematic diagram of the structure of a computer device according to an embodiment of the present invention;
[0052] Figure 11 This is another structural schematic diagram of a computer device according to one embodiment of the present invention. Detailed Implementation
[0053] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0054] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the term "comprising" and its variations should be interpreted as open-ended terms meaning "including but not limited to."
[0055] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.
[0056] The welding method for dry gas sealing pipelines of centrifugal compressors provided in this embodiment of the invention can be applied to, for example... Figure 1In this application environment, the device communicates with the server via a network. The server can obtain a configuration parameter table from the device; based on a pre-set pipeline type calculation model, it determines the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded, according to the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane; based on a pre-set pipeline size calculation model, it calculates the bending dimension of the pipeline to be welded according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table; based on the bending dimension of the pipeline to be welded, it bends and shapes the pipeline to be welded; and then it welds the bent and shaped pipeline to be welded. This application, based on the pipeline type calculation model, can determine whether the type of the pipeline to be welded is a single bend or a double bend, and the alignment plane of the flange center of the pipeline to be welded. The determination of the alignment plane improves the consistency of the arrangement of multiple pipelines to be welded. The bending dimensions of the pipeline to be welded can be determined based on the pipeline size calculation model. Bending the pipeline to be welded according to the bending dimensions improves the height consistency of the pipeline to be welded.
[0057] The device side can be, but is not limited to, various personal computers, laptops, smartphones, tablets, and portable wearable devices. The server side can be implemented using a standalone server or a server cluster consisting of multiple servers. The invention will now be described in detail through specific embodiments.
[0058] Please see Figure 2 As shown, Figure 2 A schematic flowchart of a method for welding dry gas sealing pipelines of a centrifugal compressor provided in an embodiment of the present invention includes the following steps:
[0059] S10: Get the configuration parameter table.
[0060] Specifically, the configuration parameter table is shown in Table 1, including parameter items and pipe items to be welded; the parameter items include multiple parameters, which are listed side-by-side in the first row of the configuration parameter table, for reference. Figures 3 to 8 As shown, the configuration parameter table includes: axial angle θ1 of the dry gas sealing hole, radial angle θ2 of the dry gas sealing hole, axial distance L of the dry gas sealing hole, radius R0 of the sealing body, radius R1 of the pipeline, total height H of the pipeline, and center distance Y of the pipeline. 法 Flange height h. The pipeline items to be welded include multiple pipeline numbers, such as 1, 2, 3, 4, etc. It should be noted that in this implementation, the plane containing the right end face of the sealing body is the YOZ plane, point O is located on the axis of the sealing body, and the XYZ coordinate axes are as follows: Figure 3 As shown.
[0061] Table 1 Configuration Parameter Table
[0062]
[0063] It is understandable that the axial angle θ1 of the dry gas sealing hole is the angle between the axis of the dry gas sealing hole and the positive direction of the Z-axis within the axial section of the housing (e.g., Figure 3 (As shown); the radial angle θ2 of the dry gas sealing hole is the angle between the axis of the dry gas sealing hole and the positive direction of the Y-axis within the radial section of the housing (e.g. Figure 4 (as shown); the axial distance L of the dry gas sealing hole is the X-axis coordinate of the dry gas sealing hole corresponding to the pipeline to be welded (e.g., Figure 3 (as shown); the sealing body radius R0 is the radius of the compressor sealing body (as shown). Figure 3 (As shown); the pipe radius R1 is the radius of the pipe to be welded; the total pipe height H is the total height of the pipe to be welded (as shown). Figure 6 (As shown); Pipeline center distance Y 法 The Y-axis coordinate of the flange center to be connected to the pipeline to be welded (e.g.) Figure 6 (as shown); the flange height h is the flange height connected to the pipeline to be welded (e.g., ...). Figure 6 (As shown).
[0064] S20: Based on the pre-set pipeline type calculation model, determine the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded according to the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane;
[0065] Specifically, one end of the pipeline to be welded is connected to the dry gas sealing hole, and the other end is connected to the corresponding flange. Since the flange is larger than the pipeline and there is a gap between adjacent flanges, the coordinates of the flange center are different from the coordinates of the dry gas sealing hole. Therefore, the pipeline to be welded needs to be bent from the dry gas sealing hole to the flange center.
[0066] Specifically, the types of pipes to be welded include single bends and double bends. A single bend means that the pipe to be welded undergoes one bend, with one bending angle (e.g., ...). Figure 5 (As shown); Double bend means that the pipeline to be welded undergoes two bends, having two bending angles (such as...). Figure 7(As shown). It should be noted that the plane containing the second bend angle of the double-bend type of pipeline to be welded is the YOZ plane or the XOZ plane. To ensure the consistency of pipeline layout, the original alignment plane of the flange centers of multiple pipelines to be welded is the alignment plane of the dry gas sealing holes. For example, if there are 7 pipelines to be welded, corresponding to 7 dry gas sealing holes, and the X-axis coordinates of the 7 dry gas sealing holes are the same, then the original alignment plane is the plane parallel to the YOZ plane where the X-coordinates of the 7 dry gas sealing holes are located. If there are 7 pipelines to be welded, corresponding to 7 dry gas sealing holes, and 2 of the dry gas sealing holes have the same X-axis coordinate, then the original alignment plane of the pipelines to be welded corresponding to these 2 dry gas sealing holes is the plane parallel to the YOZ plane where the X-coordinates of these 2 dry gas sealing holes are located. If the X-axis coordinates of the other 5 dry gas sealing holes are the same, then the original alignment plane of the pipelines to be welded corresponding to these 5 dry gas sealing holes is the plane parallel to the YOZ plane where the X-coordinates of these 5 dry gas sealing holes are located.
[0067] Specifically, step S20, which involves determining the type of the pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded based on the pre-set pipeline type calculation model and the configuration parameter table, includes:
[0068] S21: Obtain the axial angle θ1, radial angle θ2, axial distance L, sealing body radius R0, and pipeline center distance Y corresponding to the dry gas sealing hole of the pipeline to be welded. 法 ;
[0069] S22: Based on the axial angle θ1, radial angle θ2, axial distance L of the dry gas sealing hole corresponding to the pipeline to be welded, the radius R0 of the sealing body, and the center distance Y of the pipeline. 法 The X-axis coordinate value of the flange is calculated.
[0070] Specifically, the coordinates (X0, Y0) of the starting point of the pipeline to be welded are calculated based on the radial angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, and the radius R0 of the sealing body:
[0071] X0=L (1)
[0072]
[0073] Calculate the horizontal rotation angle α of the milling head based on the axial angle θ1 and the radial angle θ2 of the dry gas sealing hole:
[0074] α=arctan(tan(θ1×π÷180) / cos(θ2×π÷180))×180 / π(3)
[0075] Calculate the flange's X-axis coordinate value X based on the starting coordinates of the pipe to be welded and the horizontal rotation angle α of the milling head. 法 :
[0076]
[0077] S23: Based on the X-axis coordinate value of the flange, determine the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded.
[0078] Specifically, when the X-axis coordinate value of the flange is less than 0, the type of the pipeline to be welded is determined to be double bend, and the alignment plane of the flange center of the pipeline to be welded is the adjusted alignment plane.
[0079] When the X-axis coordinate value of the flange is greater than 0, the type of the pipeline to be welded is determined to be a single bend, and the alignment plane of the flange center of the pipeline to be welded is the original alignment plane.
[0080] Specifically, in one embodiment, the adjusted alignment plane can be preset and set parallel to the original alignment plane.
[0081] Specifically, in one embodiment, the adjusted alignment plane is determined by a pre-set alignment adjustment value K. The alignment adjustment value K is the difference along the X-axis between the adjusted alignment plane and the original alignment plane, and this value can be pre-set. Figure 8 As shown, in step S22, the flange position before adjustment, calculated using the original alignment plane, is located to the left of the Y-axis, and the flange X-axis coordinate value X... 法 If the value is less than 0, the type of pipeline to be welded is determined to be a double bend. The alignment plane and the flange position after adjustment are determined by the alignment adjustment value K.
[0082] Specifically, in one embodiment, when multiple dry gas sealing holes are distributed in two rows, the flange center of the pipeline to be welded corresponding to the multiple dry gas sealing holes has two original alignment planes, including a first original alignment plane and a second original alignment plane. When the type of pipeline to be welded is a double bend and the original alignment plane is the first original alignment plane, the adjusted alignment plane is the second original alignment plane. When the type of pipeline to be welded is a double bend and the original alignment plane is the second original alignment plane, the adjusted alignment plane is the first original alignment plane. For example, if 7 dry gas sealing holes are distributed in two rows, that is, 2 dry gas sealing holes have the same X-axis coordinate, the original alignment plane of the flange center on the corresponding pipeline to be welded is the first original alignment plane. The other 5 dry gas sealing holes have the same X-axis coordinate, and the original alignment plane of the flange center on the corresponding pipeline to be welded is the second original alignment plane. When the type of pipeline to be welded is a double bend and the original alignment plane is the first original alignment plane, the adjusted alignment plane is the second original alignment plane.
[0083] S30: Based on the pre-set pipeline size calculation model, calculate the bending dimensions of the pipeline to be welded according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table.
[0084] Specifically, in one embodiment, S31: when it is determined that the type of the pipeline to be welded is a single bend, the pipeline size calculation model corresponding to the single bend type is determined as the first pipeline size calculation model.
[0085] Specifically, the pipeline size calculation model includes a first pipeline size calculation model, a second pipeline size calculation model, and a third pipeline size calculation model. The pipeline size calculation model corresponding to the single bend type is the first pipeline size calculation model, and the pipeline size calculation model corresponding to the double bend type is either the second pipeline size calculation model or the third pipeline size calculation model.
[0086] S32: When it is determined that the type of the pipeline to be welded is a single bend, based on the original alignment plane, according to the axial included angle θ1 of the dry gas sealing hole, the radial included angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, the radius R1 of the pipeline, the total height H of the pipeline, and the center distance Y of the pipeline. 法 Based on the first pipeline size calculation model, the flange height h is calculated to obtain the first length L0, the second length L1, the total length L2, and the single bend angle σ1 of the pipeline to be welded.
[0087] Specifically, the single bend angle σ1 is calculated using the following formula:
[0088] σ1=90-β (5)
[0089] Where β is the vertical rotation angle of the milling head.
[0090] The vertical rotation angle β of the milling head is calculated using the following formula:
[0091] β=90-arctan(cos(α×π÷180)×tan(θ2×π÷180))×180 / π (6)
[0092] The first length L0 is calculated according to the following formula:
[0093]
[0094] Where r is the radius of the bending tool, which can be preset. In this embodiment, r is 80mm.
[0095] The second length L1 is calculated according to the following formula:
[0096]
[0097] Where l is the recess depth of the dry gas sealing hole corresponding to the pipeline to be welded, and in this embodiment l is 20mm.
[0098] The total length L2 is calculated using the following formula:
[0099]
[0100] Specifically, the first length L0 of the pipeline to be welded is the first section length of the pipeline to be welded that is connected to the flange; the second length L1 is the second section length of the pipeline to be welded that is connected to the housing; and the total length L2 is the total length of the pipeline to be welded.
[0101] Alternatively, in another embodiment,
[0102] S31′: Get the alignment adjustment value and the final plane of the bend.
[0103] Specifically, the alignment adjustment value is the difference along the X-axis between the adjusted alignment plane and the original alignment plane. The alignment adjustment value can be preset, and the adjusted alignment plane can be obtained based on the alignment adjustment value.
[0104] The final plane of the bend is the plane containing the second bend angle, including the YOZ plane and the XOZ plane.
[0105] S32′: When it is determined that the type of the pipeline to be welded is a double bend, the pipeline size calculation model corresponding to the double bend type is determined as the second pipeline size calculation model or the third pipeline size calculation model according to the final plane of the bend.
[0106] Specifically, when the final bend plane is the YOZ plane, the pipe size calculation model is the second pipe size calculation model; when the final bend plane is the XOZ plane, the pipe size calculation model is the third pipe size calculation model. The final bend plane is the plane containing the second bend angle. The plane containing the first bend angle and the plane containing the second bend angle are perpendicular to each other.
[0107] Specifically, in one embodiment, based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the second pipeline size calculation model, the first length L0′, the second length L1′, and the third length L of the pipeline to be welded are calculated based on the second pipeline size calculation model according to the axial included angle θ1 of the dry gas sealing hole, the radial included angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, the radius R1 of the pipeline, the total height H of the pipeline, the center distance Y of the pipeline, the flange height h, and the alignment adjustment value K. c Let L' be the total length L2', L' be the first bending angle σ1', and L' be the second bending angle σ2'. At this point, the first bending angle σ1' is located in the XOZ plane, and the second bending angle σ2' is located in the YOZ plane.
[0108] The first bending angle σ1′ is calculated using the following formula:
[0109] σ1'=θ1 (10)
[0110] The second bending angle σ2′ is calculated using the following formula:
[0111] σ2'=90-θ2 (11)
[0112] The first length L0′ is calculated according to the following formula:
[0113]
[0114] The second length L1′ is calculated according to the following formula:
[0115]
[0116] Where l is the depth of the flat recess of the dry gas sealing hole corresponding to the pipeline to be welded, and in this embodiment l = 20 mm.
[0117] Third length L c The result is obtained by calculation using the following formula:
[0118]
[0119] The total length L2′ is calculated using the following formula:
[0120]
[0121] Specifically, in one embodiment, based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the third pipeline size calculation model, the first length L0′, the second length L1′, and the third length L of the pipeline to be welded are calculated based on the third pipeline size calculation model according to the axial included angle θ1 of the dry gas sealing hole, the radial included angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, the radius R1 of the pipeline, the total height H of the pipeline, the center distance Y of the pipeline, the flange height h, the alignment adjustment value K, and the radius R2 at the initial position of the milling head. c Let L' be the total length L2', L' be the first bending angle σ1', and L' be the second bending angle σ2'. At this point, the first bending angle σ1' is located in the YOZ plane, and the second bending angle σ2' is located in the XOZ plane.
[0122] The Z-axis coordinate of the milling head is calculated using the following formula:
[0123]
[0124] The first bending angle σ1′ is calculated using the following formula:
[0125]
[0126] The second bending angle σ2′ is calculated using the following formula:
[0127]
[0128] The first length L0′ is calculated according to the following formula:
[0129]
[0130] The second length L1′ is calculated according to the following formula:
[0131]
[0132] Where l is the depth of the flat recess of the dry gas sealing hole corresponding to the pipeline to be welded, and in this embodiment l = 20 mm.
[0133] Third length L c The result is obtained by calculation using the following formula:
[0134]
[0135] The total length L2′ is calculated using the following formula:
[0136] L2' = L0' + L1' + L c ' (twenty two)
[0137] Specifically, in the two embodiments regarding the double-bend type mentioned above, the first length L0′ of the pipe to be welded is the first segment length of the pipe to be welded connected to the flange; the second length L1′ is the second segment length of the pipe to be welded connected to the housing; and the third length L... c L0′ is the length of the third segment of the pipeline to be welded between the first length L0′ and the second length L1′; the total length L2′ is the total length of the pipeline to be welded.
[0138] S40: According to the bending dimensions of the pipeline to be welded, bend and shape the pipeline to be welded.
[0139] Specifically, in one embodiment, a cutting tool is used to cut the pre-placed pipe to a length equal to the total length of the pipe to be welded. Then, a bending tool is used to bend the cut pipe according to the bending dimensions of the pipe to be welded. Single-bend pipes are bent once, and double-bend pipes are bent twice.
[0140] Specifically, the bending direction of the single bend for a single-bend pipe to be welded, and the direction of the first bending angle and the direction of the second bending angle for a double-bend pipe to be welded, can be preset.
[0141] S50: Weld the pipe to be welded after bending and shaping.
[0142] Specifically, in one embodiment, the bent pipe to be welded is placed in the flat recess of the dry gas sealing hole, and a welding robot is used to weld the pipe.
[0143] After step S10 and before step S20, the method further includes:
[0144] S01: Obtain the axial included angle θ1, the radial included angle θ2, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, and the radius R2 at the initial position of the milling head;
[0145] S02: Based on the axial included angle θ1 of the dry gas sealing hole, the radial included angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, and the radius R2 at the initial position of the milling head, the horizontal rotation angle α, the vertical rotation angle β, and the milling depth S of the milling head are calculated according to the pre-set hole machining calculation model.
[0146] S03: Based on the horizontal rotation angle α of the milling head, the vertical rotation angle β of the milling head, and the machining depth S of the milling head, machine the dry gas sealing hole.
[0147] Specifically, in one embodiment, the horizontal rotation angle α of the milling head is calculated according to formula (3), and the vertical rotation angle β of the milling head is calculated according to formula (6).
[0148] Calculate the milling depth S using the following formula:
[0149]
[0150] Where R3 is the radius of the groove bottom where the dry gas sealing hole is located, such as Figure 3 As shown.
[0151] Specifically, in one embodiment, before step S02, the method further includes: calculating the coordinates (X, X, Y) of the initial position of the milling head corresponding to the dry gas sealing hole based on a pre-set hole machining calculation model, according to the axial angle θ1 of the dry gas sealing hole, the radial angle θ2 of the dry gas sealing hole, the radius R0 of the sealing body, and the radius R2 at the initial position of the milling head. 头 Y 头 Z 头 ).
[0152] The X-axis coordinate of the milling head at the initial position corresponding to the dry gas sealing hole to be machined is calculated using the following formula:
[0153] X 头 =L-(R2-R0)×tan(θ1×π / 180) (24)
[0154] The Y-axis coordinate of the milling head at the initial position corresponding to the dry gas sealing hole to be machined is calculated using the following formula:
[0155] Y 头 =R²×cos(θ²×π / 180) (25)
[0156] The Z-axis coordinate at the initial position of the milling head corresponding to the dry gas sealing hole to be processed is calculated according to formula (16).
[0157] Based on the coordinates of the initial position of the milling head corresponding to the dry gas sealing hole to be processed, move the milling head to the coordinates of the initial position of the milling head corresponding to the dry gas sealing hole to be processed.
[0158] Specifically, in one embodiment, when the coordinates of the dry gas sealing hole have been marked on the housing, the milling head can be directly located at the marked coordinates of the dry gas sealing hole. In this case, R2 in formula (23) needs to be replaced with the sealing body radius R0.
[0159] As can be seen, in the above scheme, the pipeline type calculation model can determine whether the type of pipeline to be welded is a single bend or a double bend, and the alignment plane of the flange center of the pipeline to be welded. Determining the alignment plane improves the consistency of the arrangement of multiple pipelines to be welded. The pipeline size calculation model can determine the bending size of the pipeline to be welded, and bending the pipeline to be welded according to the bending size improves the high consistency and accuracy of the pipeline to be welded.
[0160] It should be understood that the sequence number of each step in the above embodiments does not imply 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 embodiments of the present invention.
[0161] In one embodiment, a welding device for dry gas sealing pipelines of a centrifugal compressor is provided, which corresponds one-to-one with the welding method for dry gas sealing pipelines of centrifugal compressors described in the above embodiments. For example... Figure 9 As shown, the centrifugal compressor dry gas sealing pipeline welding device includes an acquisition module 101, a judgment module 102, a calculation module 103, a pipe bending module 104, and a welding module 105. Detailed descriptions of each functional module are as follows:
[0162] Module 101 is used to obtain the configuration parameter table;
[0163] The judgment module 102 is used to determine the type of pipeline to be welded based on the pre-set pipeline type calculation model and the configuration parameter table.
[0164] The calculation module 103 is used to calculate the bending dimensions of the pipe to be welded based on a pre-set pipe size calculation model, according to the determined type of the pipe to be welded and the configuration parameter table.
[0165] The pipe bending module 104 is used to bend and shape the pipe to be welded according to the bending dimensions of the pipe to be welded.
[0166] Welding module 105 is used to weld the pipe to be welded after bending and shaping.
[0167] The acquisition module 101 is also used for: the axial included angle θ1 of the dry gas sealing hole, the radial included angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, the radius R1 of the pipeline, the total height H of the pipeline, and the center distance Y of the pipeline. 法 Flange height h.
[0168] The judgment module 102 is also used for:
[0169] Obtain the axial angle θ1, radial angle θ2, axial distance L, sealing body radius R0, and pipeline center distance Y corresponding to the dry gas sealing hole of the pipeline to be welded. 法 ;
[0170] Based on the axial angle θ1, radial angle θ2, axial distance L of the dry gas sealing hole corresponding to the pipeline to be welded, radius R0 of the sealing body, and center distance Y of the pipeline. 法 The X-axis coordinate value of the flange is calculated.
[0171] Based on the X-axis coordinate value of the flange, determine the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded.
[0172] Calculation module 103 is also used for:
[0173] When the type of the pipeline to be welded is determined to be a single bend, the pipeline size calculation model corresponding to the single bend type is determined as the first pipeline size calculation model.
[0174] When the type of the pipeline to be welded is determined to be a single bend, based on the original alignment plane, and according to the axial included angle θ1 of the dry gas sealing hole, the radial included angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, the radius R1 of the pipeline, the total height H of the pipeline, and the center distance Y of the pipeline. 法 Based on the first pipeline size calculation model, the flange height h is calculated to obtain the first length L0, the second length L1, the total length L2, and the single bend angle σ1 of the pipeline to be welded.
[0175] Calculation module 103 is also used for:
[0176] Obtain the alignment adjustment value and the final bend plane;
[0177] When the type of the pipeline to be welded is determined to be a double bend, the pipeline size calculation model corresponding to the double bend type is determined as the second pipeline size calculation model or the third pipeline size calculation model based on the final plane of the bend.
[0178] Calculation module 103 is also used for:
[0179] Based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the second pipeline size calculation model, the first length L0′, second length L1′, and third length L of the pipeline to be welded are calculated based on the axial angle θ1 of the dry gas sealing hole, the radial angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, the radius R1 of the pipeline, the total height H of the pipeline, the center distance Y of the pipeline, the flange height h, and the alignment adjustment value K, according to the second pipeline size calculation model. c ′、Total length L2′、First bending angle σ1′、Second bending angle σ2′。
[0180] Calculation module 103 is also used for:
[0181] Based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the third pipeline size calculation model, the first length L0′, second length L1′, and third length L of the pipeline to be welded are calculated based on the axial angle θ1 of the dry gas sealing hole, the radial angle θ2 of the dry gas sealing hole, the axial distance L of the dry gas sealing hole, the radius R0 of the sealing body, the radius R1 of the pipeline, the total height H of the pipeline, the center distance Y of the pipeline, the flange height h, the alignment adjustment value K, and the radius R2 at the initial position of the milling head, according to the third pipeline size calculation model. c ′、Total length L2′、First bending angle σ1′、Second bending angle σ2′。
[0182] Calculation module 103 is also used for:
[0183] Based on the axial included angle θ1, radial included angle θ2, axial distance L of the dry gas sealing hole, radius R0 of the sealing body, and radius R2 at the initial position of the milling head, the horizontal rotation angle α, vertical rotation angle β, and machining depth S of the milling head are calculated using a pre-set hole machining calculation model.
[0184] Calculation module 103 is also used for:
[0185] Based on the axial angle θ1 of the dry gas sealing hole, the radial angle θ2 of the dry gas sealing hole, the radius R0 of the sealing body, and the radius R2 at the initial position of the milling head, the coordinates at the initial position of the milling head corresponding to the dry gas sealing hole to be processed are calculated using a pre-set hole machining calculation model.
[0186] This invention provides a welding device for dry gas sealing pipelines of centrifugal compressors. First, based on a pipeline type calculation model, the type of the pipeline to be welded (single bend or double bend) and the alignment plane of the flange centers of the pipeline to be welded can be determined. Determining the alignment plane improves the consistency of the arrangement of multiple pipelines to be welded. Then, based on the pipeline size calculation model, the bending dimensions of the pipeline to be welded can be determined. Bending the pipeline to be welded according to these dimensions improves the height consistency and accuracy of the pipelines to be welded.
[0187] Specific limitations regarding the welding device for the dry gas sealing pipeline of the centrifugal compressor can be found in the limitations on the welding method for the dry gas sealing pipeline of the centrifugal compressor mentioned above, and will not be repeated here. Each module in the aforementioned welding device for the dry gas sealing pipeline of the centrifugal compressor can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.
[0188] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 10 As shown. The computer device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile and / or volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used for communication with external devices via a network connection. When the computer program is executed by the processor, it implements the functions or steps of a centrifugal compressor dry gas sealing pipeline welding method on the server side.
[0189] In one embodiment, a computer device is provided, which may be a device terminal, and its internal structure diagram may be as follows: Figure 11 As shown, the computer device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used to communicate with an external server via a network connection. When the computer program is executed by the processor, it implements the functions or steps of a centrifugal compressor dry gas sealing pipeline welding method on the device end side.
[0190] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the following steps:
[0191] Get the configuration parameter table;
[0192] Based on the pre-set pipeline type calculation model, the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded are determined according to the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane;
[0193] Based on the pre-set pipeline size calculation model, the bending dimensions of the pipeline to be welded are calculated according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table.
[0194] According to the bending dimensions of the pipeline to be welded, the pipeline to be welded is bent and shaped.
[0195] Welding is then performed on the pipes to be welded after bending and shaping.
[0196] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:
[0197] Get the configuration parameter table;
[0198] Based on the pre-set pipeline type calculation model, the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded are determined according to the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane;
[0199] Based on the pre-set pipeline size calculation model, the bending dimensions of the pipeline to be welded are calculated according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table.
[0200] According to the bending dimensions of the pipeline to be welded, the pipeline to be welded is bent and shaped.
[0201] Welding is then performed on the pipes to be welded after bending and shaping.
[0202] It should be noted that the functions or steps that can be implemented by the computer-readable storage medium or computer device described above can be referred to the relevant descriptions on the server side and device side in the foregoing method embodiments. To avoid repetition, they will not be described one by one here.
[0203] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
[0204] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to 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.
[0205] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.
Claims
1. A method for welding a dry gas sealing pipeline of a centrifugal compressor, characterized in that, include: Get the configuration parameter table; Based on the pre-set pipeline type calculation model, the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded are determined according to the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane; Based on the pre-set pipeline size calculation model, the bending dimensions of the pipeline to be welded are calculated according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table. According to the bending dimensions of the pipeline to be welded, the pipeline to be welded is bent and shaped. Welding is then performed on the pipes to be welded after bending and shaping. The configuration parameter table includes parameter items and pipe items to be welded; The parameters include the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the radius of the pipeline, the total height of the pipeline, the center distance of the pipeline, and the flange height. The pipeline item to be welded includes the pipeline number; The calculation model based on the pre-set pipe type determines the type and alignment plane of the pipe to be welded according to the configuration parameter table, including: Obtain the axial angle, radial angle, axial distance, sealing body radius, and pipeline center distance of the dry gas sealing hole corresponding to the pipeline to be welded; Based on the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, and the center distance of the pipeline to be welded, the flange X-axis coordinate value is calculated. Based on the X-axis coordinate value of the flange, determine the type of pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded; The step of determining the type of pipeline to be welded based on the flange X-axis coordinate value includes: When the X-axis coordinate value of the flange is less than 0, the type of the pipeline to be welded is determined to be double bend, and the alignment plane of the flange center of the pipeline to be welded is the adjusted alignment plane. When the X-axis coordinate value of the flange is greater than 0, the type of the pipeline to be welded is determined to be a single bend, and the alignment plane of the flange center of the pipeline to be welded is the original alignment plane. The method based on the pre-set pipe size calculation model, which calculates the bending dimensions of the pipe to be welded according to the determined type of pipe and the configuration parameter table, further includes: Obtain the alignment adjustment value and the final bend plane; When the type of the pipeline to be welded is determined to be a double bend, the pipeline size calculation model corresponding to the double bend type is determined as the second pipeline size calculation model or the third pipeline size calculation model according to the final plane of the bend. Based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the second pipeline size calculation model, the first length, second length, third length, total length, first bending angle, and second bending angle of the pipeline to be welded are calculated based on the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the pipeline radius, the total height of the pipeline, the center distance of the pipeline, the flange height, and the alignment adjustment value, according to the second pipeline size calculation model. Based on the adjusted alignment plane, when the pipeline size calculation model is determined to be the third pipeline size calculation model, the first length, second length, third length, total length, first bending angle, and second bending angle of the pipeline to be welded are calculated based on the axial included angle of the dry gas sealing hole, the radial included angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the radius of the pipeline, the total height of the pipeline, the center distance of the pipeline, and the flange height, according to the third pipeline size calculation model.
2. The welding method for dry gas sealing pipeline of a centrifugal compressor according to claim 1, characterized in that, The pre-set pipe size calculation model calculates the bending dimensions of the pipe to be welded according to the determined type of pipe and the configuration parameter table, including: When it is determined that the type of the pipeline to be welded is a single bend, the pipeline size calculation model corresponding to the single bend type is determined as the first pipeline size calculation model; Based on the original alignment plane, and according to the axial angle of the dry gas sealing hole, the radial angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, the radius of the pipeline, the total height of the pipeline, the center distance of the pipeline, and the flange height, the first length, the second length, the total length, and the single bend angle of the pipeline to be welded are calculated based on the first pipeline size calculation model.
3. The welding method for dry gas sealing pipeline of a centrifugal compressor according to claim 1, characterized in that, The method further includes: Obtain the axial included angle of the dry gas sealing hole, the radial included angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, and the radius at the initial position of the milling head; Based on the axial included angle of the dry gas sealing hole, the radial included angle of the dry gas sealing hole, the axial distance of the dry gas sealing hole, the radius of the sealing body, and the radius at the initial position of the milling head, the horizontal rotation angle, the vertical rotation angle, and the machining depth of the milling head are calculated using a pre-set hole machining calculation model. The dry gas sealing hole is machined according to the horizontal rotation angle of the milling head, the vertical rotation angle of the milling head, and the machining depth of the milling head.
4. A welding apparatus for a dry gas sealing pipeline of a centrifugal compressor, employing the welding method for a dry gas sealing pipeline of a centrifugal compressor as described in any one of claims 1 to 3, characterized in that, The acquisition module is used to retrieve the configuration parameter table; The judgment module is used to determine the type of the pipeline to be welded and the alignment plane of the flange center of the pipeline to be welded based on the pre-set pipeline type calculation model and the configuration parameter table, wherein the alignment plane in the pipeline type calculation model is the original alignment plane; The calculation module is used to calculate the bending dimensions of the pipeline to be welded based on a pre-set pipeline size calculation model, according to the determined type of pipeline to be welded, the alignment plane of the flange center of the pipeline to be welded, and the configuration parameter table. The pipe bending module is used to bend and shape the pipe to be welded according to the bending dimensions of the pipe to be welded. The welding module is used to weld the pipes to be welded after bending and shaping.
5. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the centrifugal compressor dry gas sealing pipeline welding method as described in any one of claims 1 to 3.
6. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the centrifugal compressor dry gas sealing pipeline welding method as described in any one of claims 1 to 3.