A process piping truss structure

Abstract

This utility model relates to a process piping truss structure; the structure includes at least two parallel process pipes, the ratio of the span of the two process pipes to the distance between them being 10 / 1 to 18 / 1; straight struts are provided between the two ends of the two process pipes, and several diagonal braces are provided between the two straight struts; the diagonal braces include a first diagonal brace provided between the straight strut of one process pipe and the other process pipe, and a second diagonal brace provided between the first diagonal brace of the other process pipe and the aforementioned process pipe; the angle between the first and second diagonal braces and the process pipes is 30° to 60°; it features reasonable design, low investment and construction costs, and convenient subsequent adjustment of the process pipe height.

Description

Technical Field

[0001] This utility model belongs to the field of process piping installation technology, specifically a process piping truss structure. Background Technology

[0002] In the design process, process pipelines generally require a support structure at their bottom to place them across roads and waterways. This is especially true for long-span roads and waterways, where the required structural support is even more complex. For example, Chinese Invention Patent Publication No. CN102563214B, entitled "Multi-layer Pipeline Support Structure for Road Crossing," discloses front and rear steel trusses and the web members between the upper and lower layers of steel trusses. The upper parts of the front and rear steel trusses are connected to the upper columns via upper column connecting plates. These upper column connecting plates are welded to the upper chord members of the front and rear steel trusses and the four corner welds of the upper columns. Double-channel steel composite beams are installed between the upper columns and between the web members of the front and rear trusses. This steel truss structure solves the problem of process pipelines being unable to cross wide roads. The double-layer double-channel steel composite beams effectively utilize the trusses, save space, and solve the problem of multi-layer process pipeline arrangement, allowing process pipelines to be arranged on continuous steel plates in both upper and lower layers. Chinese Utility Model Patent Authorization Announcement No.: CN216843395U, Utility Model Patent Title: A Pipe Rack; It discloses a first and third support arranged at intervals, a truss, and cables; the truss is welded from multiple pipes, and the two ends of the truss are respectively fixed to the tops of the first and third supports; the cables pass through the pipes along the length of the truss, and the two ends are respectively fixed to the tops of the two ends of the truss, and at least a portion of the cables pass through the pipes at the bottom of the truss to provide an upward lifting force to the truss. This utility model patent utilizes the cable passing through the pipes of the truss to apply a force to the pipes at the bottom of the truss that is opposite to the downward bending direction of the truss under its own weight, thereby increasing the span between supports in existing pipe racks, reducing the number of supports and pedestals, improving the utilization rate of ground space, saving engineering work and costs, and shortening construction time; the pipe rack structure system is more compact and convenient for construction. As can be seen from the aforementioned patents, existing process pipelines require supporting structures to increase their span. However, the following drawbacks exist in the actual use of supporting structures: 1. The addition of supporting structures increases the cost of pipeline laying; 2. Once the pipeline is placed on the supporting structure, the overall height of the supporting structure and the process pipeline is fixed. If the pipeline height needs to be adjusted later, it is not only time-consuming and labor-intensive but also has a high investment cost (requiring the removal of the supporting device, re-planning and approval, and re-construction of the supporting structure). Utility Model Content

[0003] To overcome the above deficiencies, this utility model provides a process piping truss structure to solve the technical problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A process piping truss structure includes at least two parallel process pipes, the ratio of the span of the two process pipes to the distance between them being 10 / 1 to 18 / 1; straight struts are provided between the two ends of the two process pipes, and a plurality of diagonal braces are provided between the two straight struts; the diagonal braces include a first diagonal brace provided between the straight strut of one process pipe and the other process pipe, and a second diagonal brace provided between the first diagonal brace of the other process pipe and the aforementioned process pipe; the angle between the first diagonal brace and the second diagonal brace and the process pipe is 30° to 60°.

[0006] The beneficial effects of this utility model are as follows: This utility model abandons the traditional technical solution of using a support structure in conjunction with the process pipeline to increase the span of the process pipeline. Instead, it utilizes the strength of the process pipeline itself to enable at least two process pipelines to form their own spatial system, achieving self-supporting purpose, thereby achieving the characteristic of extending the span of the process pipeline without using a support structure. Since this utility model does not use a support device, it can effectively reduce the construction time and cost of the support structure. Furthermore, if the height of the process pipeline needs to be adjusted later, the height of the process pipeline itself can be directly adjusted. It has the characteristics of reasonable design, low investment and construction cost, and convenient subsequent adjustment of the height of the process pipeline.

[0007] Preferably, there are three process pipes, two of which are arranged in parallel at the top, and the third process pipe is located at the bottom between the two aforementioned process pipes. Each process pipe is provided with a straight support rod at both ends between it and the adjacent process pipe, and several diagonal support members are provided between two straight support rods.

[0008] Preferably, there are four process pipelines, two of which are arranged in parallel at the top and the other two are arranged in parallel at the bottom of the aforementioned two process pipelines. Each process pipeline is provided with a straight support rod at both ends between it and the adjacent process pipeline, and several diagonal support members are provided between two straight support rods.

[0009] Preferably, the length and height of all first diagonal braces and the length and height of all second diagonal braces are the same among the several diagonal bracing members between the two process pipes.

[0010] Preferably, the straight strut, the first diagonal strut, and the second diagonal strut are all connected to the sleeve pipe fitted around the outer circumference of the process pipeline.

[0011] Preferably, a first heat insulation element is provided between the outer circumference of the sleeve pipe and the process pipe.

[0012] Preferably, the straight strut includes a first straight strut and a second straight strut. The end of the first straight strut is provided with a first sub-flange, and the second straight strut is provided with a first female flange at a position adapted to the first sub-flange. The first sub-flange and the first female flange are connected by fastening bolts, and a second heat insulation element is provided between the first sub-flange and the first female flange. The first diagonal strut includes a first diagonal strut and a first second diagonal strut. The end of the first diagonal strut is provided with a second sub-flange, and the second second diagonal strut is provided with a second female flange at a position adapted to the second sub-flange. The second sub-flange and the second female flange are connected by fastening bolts, and a third heat insulation element is provided between the second sub-flange and the second female flange. The second diagonal strut includes a second diagonal strut and a second second diagonal strut. The end of the second diagonal strut is provided with a third sub-flange, and the second second diagonal strut is provided with a third female flange at a position adapted to the third sub-flange. The third sub-flange and the third female flange are connected by fastening bolts, and a fourth heat insulation element is provided between the third sub-flange and the third female flange.

[0013] Preferably, the first, second, third, and fourth heat insulation components are polytetrafluoroethylene (PTFE) pads.

[0014] Preferably, heat-insulating gaskets are provided in the bolt holes of the first sub-flange, the first female flange, the second sub-flange, the second female flange, the third sub-flange, and the third female flange.

[0015] A process piping truss structure manufactured according to the above scheme utilizes the inherent strength of the process piping to allow at least two process piping pipes to form their own spatial system, achieving self-support and thus extending the span of the process piping without using a supporting structure. Furthermore, this invention optimizes the layout based on the number of pipes. When two process piping pipes are required, they are arranged vertically parallel. When three process piping pipes are required, two are arranged parallel at the top, and the third is arranged parallel below the first (making the cross-section of the three process piping pipes form an isosceles right-angled inverted triangle). When four process piping pipes are required, two are arranged vertically parallel. Two process pipes are arranged in parallel at the top, and two other process pipes are arranged in parallel at the bottom (so that the cross-sections of the four process pipes are arranged in a square or rectangular layout). By optimizing the layout of the process pipes, multiple process pipes can form their own spatial system, improving their self-supporting capacity and thus extending the span of the process pipes. Furthermore, since the technical solution of this utility model includes at least two process pipes, and the fluid temperature inside the process pipes is different, in order to avoid energy loss in the process pipes, this utility model adopts a broken bridge structure, that is, by making the straight support rod, the first diagonal support rod and the second diagonal support rod adopt a segmented structure, and setting heat insulation components between the segmented structures, so as to prevent energy loss. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of two process pipes.

[0019] Figure 3 This is a cross-sectional view of three process pipes.

[0020] Figure 4 This is a cross-sectional view of four process pipes.

[0021] Figure 5 This is a schematic diagram showing the positional relationship between the process piping and the sleeve pipe of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the straight strut of this utility model.

[0023] Figure 7 This is a schematic diagram of the structure of the first diagonal brace of this utility model.

[0024] Figure 8 This is a schematic diagram of the structure of the second diagonal brace of this utility model.

[0025] In the diagram: 1. Process piping; 2. Straight strut; 3. First diagonal strut; 4. Second diagonal strut; 5. Hoop sleeve; 6. Insulating gasket; 21. First straight strut; 22. Second straight strut; 23. First sub-flange; 24. First female flange; 25. Second insulation component; 31. First diagonal strut; 32. First and second diagonal struts; 33. Second sub-flange; 34. Second female flange; 35. Third insulation component; 41. Second diagonal strut; 42. Second and second diagonal struts; 43. Third sub-flange; 44. Third female flange; 45. Fourth insulation component; 51. First insulation component. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] The following is in conjunction with the appendix Figure 1 , 2 To further describe this application in detail, this utility model is a process piping truss structure, which includes at least two parallel process pipes 1, the ratio of the span of the two process pipes 1 to the distance between the two process pipes 1 is 10 / 1 to 18 / 1; straight support rods 2 are provided between the two ends of the two process pipes 1, and a plurality of diagonal support members are provided between the two straight support rods 2; the diagonal support members include a first diagonal support rod 3 provided between the straight support rod 2 of one process pipe 1 and the other process pipe 1, and a second diagonal support rod 4 provided between the first diagonal support rod 3 of the other process pipe 1 and the aforementioned process pipe 1; the included angle between the first diagonal support rod 3 and the second diagonal support rod 4 and the process pipe 1 is 30° to 60°. This invention utilizes the inherent strength of the process pipeline 1 and constructs multiple process pipelines into a complete and independent spatial system to enhance the strength and deflection of the entire system, thereby extending the span of the process pipelines. Using this structure, the span of multiple process pipelines can reach 10-40 meters, eliminating the need for supporting devices to work with the process pipelines in traditional technologies. Compared with traditional technologies, it features lower construction costs, convenient construction, a compact structure, and easy adjustment of the pipeline height in subsequent processes. Furthermore, the above technical solution protects the layout of the two specific process pipelines 1 during installation, including their positions, the distance between them, and the angle of the diagonal bracing. It should be noted that when using the above structure, the ends of the straight bracing 2, the first diagonal bracing 3, and the second diagonal bracing 4 are preferably directly connected to the process pipeline 1. Additionally, it should be specifically stated that the two process pipelines 1 are parallel vertically in this invention; "vertical" only represents orientation, and the angle between the plane formed by the two process pipelines 1 and the ground can be a right angle or greater than 0°.

[0028] Further, please refer to Figure 1 , 3The proposed invention comprises three process pipes 1. Two process pipes 1 are arranged parallel to each other at the top, and the third process pipe 1 is located at the bottom between the two aforementioned process pipes 1. Each process pipe has a straight support rod 2 at both ends between it and an adjacent process pipe, and several diagonal bracing members are provided between two straight support rods 2. In addition to the aforementioned arrangement of two process pipes, this invention also protects the layout of three process pipes. Besides adjusting the distance between the process pipes and the angle of the diagonal support rods, the cross-section of the three process pipes can be an inverted isosceles right triangle, with two process pipes located at the upper vertices and the third process pipe located at the lower vertices. Furthermore, each process pipe 1 in this invention is connected to an adjacent process pipe by a straight support rod 2 and several diagonal bracing members. It should be noted that, preferably, the two upper process pipes 1 are at the same height when using this layout.

[0029] Further, please refer to Figure 1 , 4 The proposed invention comprises four process pipes 1, with two parallel process pipes 1 arranged at the top and the other two parallel process pipes 1 arranged below the aforementioned two process pipes 1. Each process pipe 1 has a straight support rod 2 at both ends between it and an adjacent process pipe, and several diagonal bracing members are provided between two straight support rods 2. This invention also protects the layout of four process pipes in addition to the aforementioned two-pipe arrangement. Besides adjusting the distance between the process pipes and the angle of the diagonal support rods, the cross-section of the four process pipes can be square or rectangular, with the four process pipes 1 arranged at the four vertices of the square or rectangle. Furthermore, each process pipe 1 has a straight support rod 2 and several diagonal bracing members at both ends between it and an adjacent process pipe. It should be noted that with this layout, the two upper process pipes 1 are at the same height, and the two lower process pipes 1 are at the same height.

[0030] Further, refer to Figure 1-4 In the plurality of diagonal bracing members between the two process pipes 1, all the first diagonal bracing rods 3 have the same length and height, and all the second diagonal bracing rods 4 have the same length and height. This arrangement not only facilitates the design and calculation of the strength and deflection of the process pipe assembly, but also improves the versatility of the diagonal bracing rods, thus facilitating subsequent assembly.

[0031] Further, refer to Figure 1 and 5The straight strut 2, the first diagonal strut 3, and the second diagonal strut 4 are all connected to the sleeve 5 fitted around the outer circumference of the process pipeline 1. Considering the various disadvantages of different media pipeline standards, the pipeline is divided into welded trusses and assembled trusses during the truss assembly process. Stressed pipelines and hazardous media pipelines are assembled using assembled trusses, while non-stressed pipelines are directly assembled using welded trusses. When using stressed pipelines, it is preferable to use the method of fitting the sleeve 5 around the outer circumference of the process pipeline 1 to increase the pipeline span while avoiding welding operations. It should be noted that when the sleeve 5 is installed on the outside of the process pipeline 1, the straight strut 2, the first diagonal strut 3, and the second diagonal strut 4 are directly connected to the outside of the sleeve 5.

[0032] Further, refer to Figure 1-5 A first heat insulation element 51 is provided between the sleeve pipe 5 and the outer circumference of the process pipe 1. The sleeve pipe 5 described in this utility model can be applied to stressed pipes and unstressed pipes. Especially when the fluid temperatures in various pipes are different, the above-mentioned arrangement can prevent heat conduction between the two pipes.

[0033] Further, refer to Figure 1 , 6 -8, the straight support rod 2 includes a first straight support rod 21 and a second straight support rod 22. The end of the first straight support rod 21 is provided with a first sub-flange 23. The second straight support rod 22 is provided with a first female flange 24 at a position that matches the first sub-flange 23. The first sub-flange 23 and the first female flange 24 are connected by fastening bolts. A second heat insulation element 25 is provided between the first sub-flange 23 and the first female flange 24. The first diagonal support rod 3 includes a first diagonal support rod 31 and a first second diagonal support rod 32. The end of the first diagonal support rod 31 is provided with a second sub-flange 33. The first second diagonal support rod 32 is adapted to the second sub-flange 33. A second female flange 34 is provided at the position, and a second female flange 33 and a second female flange 34 are connected by fastening bolts. A third heat insulation component 35 is provided between the second female flange 33 and the second female flange 34. The second diagonal brace 4 includes a second first diagonal brace 41 and a second second diagonal brace 42. A third female flange 43 is provided at the end of the second first diagonal brace 41. A third female flange 44 is provided at the position where the second second diagonal brace 42 and the third female flange 43 are adapted. The third female flange 43 and the third female flange 44 are connected by fastening bolts. A fourth heat insulation component 45 is provided between the third female flange 43 and the third female flange 44. In order to further reduce the problem of heat conduction between pipelines, this utility model adopts the above-mentioned broken bridge structure, that is: the straight brace 2, the first diagonal brace 3 and the second diagonal brace 4 are all two-section structures, flanges are set on the basis of the two-section structure, and a heat insulation component is set between the female flange and the female flange.

[0034] Further, refer to Figure 5-8The first heat insulation component 51, the second heat insulation component 25, the third heat insulation component 35, and the fourth heat insulation component 45 are polytetrafluoroethylene (PTFE) gaskets. The thickness of the PTFE gaskets described in this invention is preferably 10 mm.

[0035] Further, refer to Figure 6-8 Each of the first sub-flange 23, the first female flange 24, the second sub-flange 33, the second female flange 34, the third sub-flange 43, and the third female flange 44 has a heat-insulating gasket 6 installed in its bolt holes. This arrangement prevents heat conduction between the fastening bolts.

[0036] Example: Taking three process pipelines 1 as an example, according to the "Steel Structure Design Standard" (GB50017-2017) as the verification basis, the simulation calculation shows that if a single ￠50*3 pipe is used for crossing, when the single pipe spans 5.5 meters, the maximum strength stress ratio is 0.082 < [1], and the deflection deformation is close to 1 / 454 < [1 / 400]. It can be seen that the maximum span of a single ￠50*3 pipe is 5.5 meters. When the technical solution of this utility model is adopted, after combining ￠50*3 pipes with a span of 24 meters, the maximum strength stress ratio is 0.53 < [1], and the deflection deformation is close to 1 / 19387 < [1 / 400]. It can be seen that the ￠50*3 pipe can support the laying of a span of 24 meters.

[0037] During construction, the types of the sleeve pipe 5, straight strut 2, first diagonal strut 3, and second diagonal strut 4 can be selected based on the temperature of the fluid in the pipeline (whether heat conduction will occur) and whether it is a stress pipeline. Once the types are determined, the specific layout of the process pipelines can be determined based on the number of process pipelines 1, and the distance between process pipelines and the angle of the diagonal struts can be determined based on the span requirements of the process pipelines 1. After the layout, distance, and angle are determined, multiple process pipelines 1 are assembled on the ground. After assembly, hoisting equipment is used for hoisting, and both ends of the multiple process pipelines 1 are fixed. When it is necessary to adjust the height of the process pipeline assembly later, the two ends of the process pipeline 1 can be cut and re-welded while hoisting with hoisting equipment. In this invention, the combined stress of the tensile and compressive stresses on the process pipelines by the straight support rods 2, the first diagonal support rods 3, and the second diagonal support rods 4 arranged between multiple process pipelines 1, along with the tensile and compressive stresses borne by the process pipelines and the primary stresses caused by the medium within the process pipelines themselves, does not exceed the allowable stress of the pipelines. This invention is mainly used when the span of the process pipeline 1 is large. Through the spatial system it forms, it enhances the strength and deflection of the entire system, thereby extending the span of the process pipeline. At the same time, this invention can interrupt heat conduction between process pipelines by using a broken bridge structure on the straight support rods 2, the first diagonal support rods 3, and the second diagonal support rods 4. It features a simple structure, reasonable design, easy construction, low investment and construction costs, and convenient subsequent adjustment of the process pipeline height.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A process piping truss structure, characterized in that: The structure includes at least two parallel process pipes (1), the span of the two process pipes (1) and the distance between the two process pipes (1) are in the ratio of 10 / 1 to 18 / 1; straight struts (2) are provided between the two ends of the two process pipes (1), and several diagonal struts are provided between the two straight struts (2). The diagonal bracing member includes a first diagonal bracing rod (3) provided between the straight bracing rod (2) of one process pipe (1) and another process pipe (1), and a second diagonal bracing rod (4) provided between the first diagonal bracing rod (3) of the other process pipe (1) and the aforementioned process pipe (1). The angle between the first diagonal brace (3) and the second diagonal brace (4) and the process pipe (1) is 30° to 60°.

2. The process piping truss structure according to claim 1, characterized in that: There are three process pipes (1), two of which are arranged parallel to each other at the top, and the third process pipe (1) is located at the bottom between the two aforementioned process pipes (1). Each process pipe (1) is provided with a straight support rod (2) at both ends between it and the adjacent process pipe, and a number of diagonal bracing members are provided between the two straight support rods (2).

3. The process piping truss structure according to claim 1, characterized in that: There are four process pipes (1), two of which are arranged in parallel at the top, and the other two are arranged in parallel at the bottom of the aforementioned two process pipes (1). Each process pipe (1) is provided with a straight support rod (2) at both ends between it and the adjacent process pipe, and a number of diagonal bracing members are provided between the two straight support rods (2).

4. A process piping truss structure according to claim 1 or 3, characterized in that: All the first diagonal braces (3) in the several diagonal braces between the two process pipes (1) have the same length and height, and all the second diagonal braces (4) have the same length and height.

5. A process piping truss structure according to any one of claims 1-3, characterized in that: The straight strut (2), the first diagonal strut (3), and the second diagonal strut (4) are all connected to the sleeve (5) fitted on the outer circumference of the process pipe (1).

6. A process piping truss structure according to claim 5, characterized in that: A first heat insulation element (51) is provided between the outer circumference of the sleeve pipe (5) and the process pipe (1).

7. A process piping truss structure according to claim 6, characterized in that: The straight strut (2) includes a first straight strut (21) and a second straight strut (22). The end of the first straight strut (21) is provided with a first sub-flange (23). The second straight strut (22) is provided with a first female flange (24) at a position that matches the first sub-flange (23). The first sub-flange (23) and the first female flange (24) are connected by fastening bolts. A second heat insulation component (25) is provided between the first sub-flange (23) and the first female flange (24). The first diagonal brace (3) includes a first diagonal brace (31) and a first second diagonal brace (32). The end of the first diagonal brace (31) is provided with a second sub-flange (33). The first second diagonal brace (32) is provided with a second female flange (34) at a position that matches the second sub-flange (33). The second sub-flange (33) and the second female flange (34) are connected by fastening bolts. A third heat insulation component (35) is provided between the second sub-flange (33) and the second female flange (34). The second diagonal brace (4) includes a second diagonal brace (41) and a second diagonal brace (42). The end of the second diagonal brace (41) is provided with a third sub-flange (43). The second diagonal brace (42) is provided with a third female flange (44) at a position that matches the third sub-flange (43). The third sub-flange (43) and the third female flange (44) are connected by fastening bolts. A fourth heat insulation component (45) is provided between the third sub-flange (43) and the third female flange (44).

8. A process piping truss structure according to claim 7, characterized in that: The first heat insulation component (51), the second heat insulation component (25), the third heat insulation component (35) and the fourth heat insulation component (45) are polytetrafluoroethylene pads.

9. A process piping truss structure according to claim 7, characterized in that: The bolt holes of the first sub-flange (23), the first female flange (24), the second sub-flange (33), the second female flange (34), the third sub-flange (43), and the third female flange (44) are respectively provided with heat-insulating gaskets (6).

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