Tubular column system and automobile factory

Abstract

The invention provides a tubular column system and an automobile factory, and belongs to the technical field of factories. The tubular column system comprises a structural column, two groups of first supports and hangers, two warm ventilation pipes, two groups of second supports and hangers and two cable bridges. Wherein a fireproof coating is arranged on the outer side of the structural column. The first supporting and hanging frames and the second supporting and hanging frames are alternately arranged in the circumferential direction of the structural column and are in bolted connection with the structural column. Each warm ventilation pipe is in bolted connection with one side, back to the structural column, of one group of first supporting and hanging brackets, and each cable bridge is in bolted connection with one side, back to the structural column, of one group of second supporting and hanging brackets. Therefore, when the tubular column system is assembled, a welding process does not need to be adopted. In addition, the installation mode completely avoids damage to the fireproof coating of the steel structure column, and the fireproof performance of the column body can be completely reserved. Therefore, welding procedures are reduced, a large number of resources are saved, carbon emission is greatly reduced, the technological process is simplified, and construction efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of factories, and particularly to a pipe column system and an automobile factory. Background Art

[0002] When building an automobile factory, a pipe column system needs to be set up in the factory so that the automobile factory can work properly.

[0003] In the related art, an automobile factory includes structural columns, heating and ventilation pipes, cable trays, and pipe comprehensive brackets, and the heating and ventilation pipes and cable trays are fixed to the structural columns through the pipe comprehensive brackets.

[0004] However, when building the pipe column system in the related art automobile factory, the installation process is relatively complex and more greenhouse gases are generated. Summary of the Invention

[0005] The present disclosure provides a pipe column system and an automobile factory, which can solve the technical problems existing in the related art. The technical solutions of the pipe column system and the automobile factory are as follows.

[0006] In a first aspect, the present disclosure provides a pipe column system. The pipe column system includes structural columns, two groups of first support hangers, two heating and ventilation pipes, two groups of second support hangers, and two cable trays. Among them, the outer side of the structural column has a fireproof coating;

[0007] The first support hangers and the second support hangers are alternately arranged along the circumferential direction of the structural column, and both the first support hangers and the second support hangers are bolted to the structural column;

[0008] Each heating and ventilation pipe is respectively bolted to one side of a group of the first support hangers facing away from the structural column;

[0009] Each cable tray is respectively bolted to one side of a group of the second support hangers facing away from the structural column.

[0010] In a possible implementation manner, each group of the first support hangers includes a plurality of first support hangers arranged along the axial direction of the structural column, and each group of the second support hangers includes a plurality of second support hangers arranged along the axial direction of the structural column;

[0011] Both ends of the first support hanger are fixedly connected to one second support hanger respectively.

[0012] In a possible implementation manner, the second support hanger includes a straight portion and two bent portions;

[0013] The straight part is fixed to the structural column. The two bent parts are bent away from the structural column relative to the straight part. The bent part is fixedly connected to the first hanger, and the cable tray is fixed to the straight part.

[0014] In a possible implementation, the length of the bent part is 80 mm - 120 mm.

[0015] If the length of the bent part is too short, the overlapping part between the bent part and the first hanger will be small, and thus the connection strength between the bent part and the first hanger will be low. If the length of the bent part is too long, the overall space occupied by the pipe column system will be large, which is likely to interfere with other devices in the automobile factory. Moreover, it will increase the material consumption of the second hanger, resulting in a high cost of the second hanger.

[0016] In a possible implementation, the length of the first hanger is 850 mm - 950 mm.

[0017] If the length of the first hanger is too short, the supporting strength for the warm air duct will be small. In addition, the overlapping part between the first hanger and the bent part of the second hanger will be small, resulting in poor connection strength between the first hanger and the second hanger. If the length of the first hanger is too long, the overall space occupied by the pipe column system will be large, which is likely to interfere with other devices in the automobile factory. Moreover, it will increase the material consumption of the first hanger, resulting in a high cost of the first hanger.

[0018] In a possible implementation, each group of the first hangers includes a plurality of first hangers arranged axially along the structural column, and the axial distance between two adjacent first hangers is 1.6 m - 2 m.

[0019] If the axial distance between two adjacent first hangers is too small, the number of first hangers will be too large. On the one hand, it will increase the processes of building the pipe column system. On the other hand, it will increase the cost of the pipe column system. If the axial distance between two adjacent first hangers is too large, the number of first hangers will be small, so that the supporting strength of each group of first hangers for the warm air duct will be small.

[0020] In a possible implementation, each group of the second hangers includes a plurality of second hangers arranged axially along the structural column, and the axial distance between two adjacent second hangers is 1.6 m - 2 m.

[0021] In a possible implementation, the first hanger has a plurality of first bolt holes arranged along the length direction;

[0022] The length of the first bolt hole is greater than the height of the first bolt hole. In this way, it is beneficial for the bolt holes on the warm air duct to be aligned with the first bolt holes.

[0023] In a possible implementation manner, the second hanger has a plurality of second bolt holes arranged along the length direction;

[0024] The length of the second bolt hole is greater than the height of the second bolt hole. In this way, it is beneficial for the bolt holes on the cable tray to be aligned with the second bolt holes.

[0025] In a possible implementation manner, the distance between two adjacent first bolt holes is 50 mm - 55 mm.

[0026] If the distance between two adjacent first bolt holes is too close, the first bolt holes on the first hanger will be relatively dense, resulting in a lower structural strength of the first hanger, and thus a lower support strength of the first hanger for the warm air duct. If the distance between two adjacent first bolt holes is too far, when the first hanger is connected to warm air ducts of different sizes, it is easy for the first bolt holes to be misaligned with the bolt holes on the warm air duct.

[0027] In a possible implementation manner, the distance between two adjacent second bolt holes is 50 mm - 55 mm.

[0028] In a possible implementation manner, the length of the first bolt hole is 30 mm - 35 mm, and the height of the first bolt hole is 12 mm - 16 mm.

[0029] In a possible implementation manner, the length of the second bolt hole is 30 mm - 35 mm, and the height of the second bolt hole is 12 mm - 16 mm.

[0030] In a possible implementation manner, the height of the first hanger is 110 mm - 120 mm.

[0031] If the height of the first hanger is too small, the structural strength of the first hanger is lower, and thus the support strength of the first hanger for the warm air duct is lower. If the height of the first hanger is too large, the weight of the first hanger will be too large, resulting in a greater tensile force of the first hanger on the structural column, and thus the first hanger is prone to falling off the structural column.

[0032] In a possible implementation manner, the height of the second hanger is 110 mm - 120 mm.

[0033] In a second aspect, the present disclosure provides an automobile factory, and the automobile factory includes the pipe column system according to any one of the first aspect.

[0034] The technical solutions provided by the present disclosure at least include the following beneficial effects:

[0035] The present disclosure provides a pipe column system. Since the warm air duct is bolted to the first support hanger and the cable tray is bolted to the second support hanger, when assembling the pipe column system, there is no need to use welding technology. Moreover, this installation method completely avoids damaging the fireproof coating of the steel structure column, and the fireproof performance of the column is completely retained. In this way, compared with the related art, not only the welding process is reduced, a large amount of resources are saved, but also the carbon emissions are significantly reduced, the process flow is simplified, and the construction efficiency is improved.

[0036] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure. In the drawings:

[0038] Figure 1 is a top view of a pipe column structure shown in an embodiment of the present disclosure;

[0039] Figure 2 is a front view of a pipe column structure shown in an embodiment of the present disclosure;

[0040] Figure 3 is a side view of a pipe column structure shown in an embodiment of the present disclosure;

[0041] Figure 4 is a front view of a second support hanger shown in an embodiment of the present disclosure;

[0042] Figure 5 is a side view of a second support hanger shown in an embodiment of the present disclosure;

[0043] Figure 6 is a top view of a second support hanger shown in an embodiment of the present disclosure;

[0044] Figure 7 is a front view of a first support hanger shown in an embodiment of the present disclosure;

[0045] Figure 8 is a side view of a first support hanger shown in an embodiment of the present disclosure;

[0046] Figure 9 is a top view of a first support hanger shown in an embodiment of the present disclosure.

[0047] LEGEND DESCRIPTION:

[0048] 1. Structural column

[0049] 2. One hanger

[0050] 20. First bolt hole

[0051] 3. Warm air duct

[0052] 31. Pipe body

[0053] 32. Tube bundle

[0054] 4. Second hanger

[0055] 40. Second bolt hole

[0056] 41. Straight part

[0057] 42. Bent part

[0058] 5. Cable tray

[0059] Through the above-mentioned drawings, the specific embodiments of the present disclosure have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Detailed embodiments

[0060] To make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below in conjunction with the drawings.

[0061] The terms used in the embodiments part of the present disclosure are only used to explain the embodiments of the present disclosure, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used herein should have the ordinary meaning understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second", "third" and similar terms used in the specification and claims of the present patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0062] Emission reduction actions are constantly strengthened, and the emission reduction in the construction of zero-carbon factories has continuously become the focus of the industry. The construction of automotive zero-carbon industrial parks faces increasingly stringent carbon emission requirements, especially in the construction stage, and its importance has become increasingly prominent. Because once the factory is built, the operable space for energy conservation and emission reduction in subsequent zero-carbon factories will be extremely limited. When building an automotive factory, a pipe column system needs to be set up inside the factory so that the automotive factory can work properly.

[0063] In related technologies, an automotive factory includes structural columns, heating and ventilation pipes, cable trays, and pipe comprehensive brackets, and the heating and ventilation pipes and cable trays are fixed to the structural columns through the pipe comprehensive brackets. When setting up the pipe column system, first mark the welding point positions of the heating and ventilation pipes and cable trays on the structural columns. Then, use an electric grinding tool to grind the fireproof coating on the surface of the structural columns and perform rust removal treatment on the structural columns. Then, use an electric welding machine to weld the pipe comprehensive brackets, and perform rust removal, galvanizing, and fireproof coating brushing on the welded pipe comprehensive brackets. Finally, install the heating and ventilation pipes and cable trays on the pipe comprehensive brackets. Among them, angle steel and channel steel are usually used for the pipe comprehensive brackets.

[0064] However, when setting up the pipe column system in related automotive factories, the number of welding points is numerous, resulting in a significant increase in greenhouse gas carbon emissions. Moreover, the construction process flow is complicated, seriously affecting the construction period, and then interfering with the production rhythm of the zero-carbon park, which is not conducive to the efficient construction and stable operation of the entire automotive zero-carbon industrial park.

[0065] In view of this, it is extremely urgent to carry out technological innovation on the carbon emission optimization measures in the construction process of automotive zero-carbon industrial parks, inject new vitality into traditional processes with energy-saving technologies, and achieve the goal of emission reduction. Optimize the design for the existing construction process of pipe comprehensive arrangement on structural columns. By re-reasonably arranging the pipeline routes and adopting new connection technical means, reduce material waste and energy consumption during the construction process, reduce carbon emissions, and achieve fewer processes, zero welding points, and zero emissions. At the same time, when selecting construction materials, environmentally friendly, low-carbon, and recyclable materials are given priority to control carbon emissions from the source. Ensure that the entire construction process of the automotive zero-carbon industrial park meets the low-carbon goal and lay the foundation for the green and sustainable development of the automotive industry.

[0066] The embodiment of the present disclosure provides a pipe column system, as Figures 1-3 shown, the pipe column system includes a structural column 1, two groups of first support hangers 2, two heating and ventilation pipes 3, two groups of second support hangers 4, and two cable trays 5. Among them, the outer side of the structural column 1 has a fireproof coating. The first support hangers 2 and the second support hangers 4 are arranged alternately along the circumferential direction of the structural column 1, and both the first support hangers 2 and the second support hangers 4 are bolted to the structural column 1. Each heating and ventilation pipe 3 is respectively bolted to the side of a group of first support hangers 2 facing away from the structural column 1, and each cable tray 5 is respectively bolted to the side of a group of second support hangers 4 facing away from the structural column 1.

[0067] Among them, the structural column 1 is a steel structure column.

[0068] One of the two cable trays 5 is a strong electricity tray, and the other is a weak electricity tray.

[0069] The first hanger 2, the second hanger 4 and the structural column 1 all have bolt holes, and hexagon bolts and gaskets can be used to fixedly connect the first hanger 2 to the structural column 1 and the second hanger 4 to the structural column 1.

[0070] The warm air duct 3 includes a pipe body 31 and a pipe bundle 32. The pipe bundle 32 wraps part of the pipe body 31, and the pipe bundle 32 is fixed to the first hanger 2, so that the pipe body 31 is fixed to the first hanger. The first hanger 2 and the pipe bundle 32 are connected by bolts, and a gasket can also be provided between the head of the bolt and the pipe bundle 32. The second hanger 4 and the cable tray 5 are connected by bolts, and a gasket can also be provided between the head of the bolt and the cable tray 5.

[0071] In the technical solution provided by the embodiment of the present disclosure, since the warm air duct 3 is bolted to the first hanger 2 and the cable tray 5 is bolted to the second hanger 4, when assembling the pipe column system, there is no need to adopt a welding process. Moreover, this installation method completely avoids damaging the fireproof coating of the steel structure column, and the fireproof performance of the column is completely retained. In this way, not only is the welding process reduced, a large amount of resources are saved, but also the carbon emissions are greatly reduced, the process flow is simplified, and the construction efficiency is improved.

[0072] In some examples, each group of the first hangers 2 includes a plurality of first hangers 2 arranged along the axial direction of the structural column, each group of the second hangers 4 includes a plurality of second hangers 4 arranged along the axial direction of the structural column, and both ends of the first hanger 2 are respectively fixedly connected to a second hanger 4. Similarly, both ends of the second hanger 4 are respectively fixedly connected to a first hanger 2.

[0073] In this way, the first hanger 2 and the second hanger 4 can form a ring, and a relatively high connection strength is provided between the first hanger 2 and the second hanger 4. In this way, even if the bolts between the first hanger 2 and the structural column 1 become loose, under the action of the second hanger 4, the first hanger 2 will not fall off the structural column 1. Similarly, if the bolts between the second hanger 4 and the structural column 1 become loose, under the action of the first hanger 2, the second hanger 4 will not fall off the structural column 1.

[0074] In some examples, such as Figure 1 , Figures 4-6As shown in the figure, the second hanger 4 includes a straight portion 41 and two bent portions 42. The straight portion 41 is fixed to the structural column 1. The two bent portions 42 are bent away from the structural column 1 relative to the straight portion 41. The bent portion 42 is fixedly connected to the first hanger 2, and the cable tray 5 is fixed to the straight portion 41. The side of the bent portion 42 facing away from the straight portion 41 is in contact with the first hanger 2, and the bent portion 42 and the first hanger 2 can be fixedly connected by bolts.

[0075] In some examples, the length of the bent portion 42 is 80 mm - 120 mm.

[0076] If the length of the bent portion 42 is too short, the overlapping portion between the bent portion 42 and the first hanger 2 will be small, and thus the connection strength between the bent portion 42 and the first hanger 2 will be low.

[0077] If the length of the bent portion 42 is too large, the overall space occupied by the pipe column system will be large, and it is easy to interfere with other devices in the automobile factory. Moreover, the material used for the second hanger 4 will increase, resulting in a higher cost of the second hanger 4.

[0078] In some examples, the length of the first hanger 2 is 850 mm - 950 mm. Among them, the outer diameter of the warm air duct 3 is usually 580 mm - 620 mm.

[0079] If the length of the first hanger 2 is too short, the support strength for the warm air duct 3 will be small. In addition, the overlapping portion between the first hanger 2 and the bent portion 42 of the second hanger 4 will be small, resulting in a poor connection strength between the first hanger 2 and the second hanger 4.

[0080] If the length of the first hanger 2 is too long, the overall space occupied by the pipe column system will be large, and it is easy to interfere with other devices in the automobile factory. Moreover, the material used for the first hanger 2 will increase, resulting in a higher cost of the first hanger 2.

[0081] In some examples, each group of the first hangers 2 includes a plurality of first hangers 2 arranged axially along the structural column 1, and the axial distance between two adjacent first hangers 2 is 1.6 m - 2 m.

[0082] If the axial distance between two adjacent first hangers 2 is too small, the number of the first hangers 2 will be too large. On the one hand, the procedures for building the pipe column system will increase. On the other hand, the cost of the pipe column system will become higher.

[0083] If the axial distance between two adjacent first hangers 2 is too large, the number of the first hangers 2 will be small, so that the support strength of each group of the first hangers 2 for the warm air duct 3 will be small.

[0084] Correspondingly, the axial spacing between two adjacent second hanger brackets 4 in each group of second hanger brackets 4 is also 1.6 m - 2 m.

[0085] If the axial spacing between two adjacent second hanger brackets 4 is too small, the number of second hanger brackets 4 will be excessive. On the one hand, this will increase the procedures for building the pipe column system. On the other hand, it will increase the cost of the pipe column system.

[0086] If the axial spacing between two adjacent second hanger brackets 4 is too large, the number of second hanger brackets 4 will be small, resulting in a relatively low support strength of each group of second hanger brackets 4 for the cable tray.

[0087] Exemplarily, the axial spacing between two adjacent first hanger brackets 2 can be 1.8 m.

[0088] It can be understood that the axial spacing between every two adjacent first hanger brackets 2 is the same. That is, multiple first hanger brackets 2 are evenly arranged in the circumferential direction. In this way, the warm air duct 3 can be subjected to relatively uniform forces.

[0089] Of course, in some other examples, it may also be that the axial spacing between every two adjacent first hanger brackets 2 is different, and the embodiments of the present disclosure do not make specific limitations in this regard.

[0090] In some examples, such as Figures 7-9 The first hanger bracket 2 has a plurality of first bolt holes 20 arranged along the length direction. The length of the first bolt hole 20 is greater than the height of the first bolt hole 20. That is, the first bolt hole 20 is an oblong hole. In this way, the position of the bolt can be adjusted along the length direction of the first bolt hole 20. If the first bolt hole 20 is a circular through hole, it may occur that the bolt holes on the warm air duct cannot be aligned with the first bolt holes 20. By setting the first bolt hole 20 as an oblong hole, it is beneficial for the bolt holes on the warm air duct 3 to be aligned with the first bolt holes 20.

[0091] Correspondingly, as Figure 7 shown, the second hanger bracket 4 has a plurality of second bolt holes 40 arranged along the length direction. The length of the second bolt hole 40 is greater than the height of the second bolt hole 40. In this way, it is beneficial for the bolt holes on the cable tray 5 to be aligned with the second bolt holes 40.

[0092] Exemplarily, the lengths of the first bolt hole 20 and the second bolt hole 40 are 30 mm - 35 mm. If the length is too long, the structural strength of the first hanger bracket 2 and the second hanger bracket 4 will be relatively low.

[0093] The heights of the first bolt hole 20 and the second bolt hole 40 are 12 mm - 16 mm. Among them, the heights of the first bolt hole 20 and the second bolt hole 40 can be set according to the outer diameter of the bolt.

[0094] In some examples, the distance between two adjacent first bolt holes 20 is 50 mm - 55 mm.

[0095] If the distance between two adjacent first bolt holes 20 is too close, the first bolt holes 20 on the first hanger 2 will be relatively dense, resulting in a lower structural strength of the first hanger 2, and thus a lower support strength of the first hanger 2 for the warm air duct 3.

[0096] If the distance between two adjacent first bolt holes 20 is too far, when the first hanger 2 is connected to warm air ducts 3 of different sizes, it is easy for the first bolt holes 20 and the bolt holes on the warm air duct 3 to be misaligned.

[0097] Correspondingly, the distance between two adjacent second bolt holes 40 is 50 mm - 55 mm.

[0098] If the distance between two adjacent second bolt holes 40 is too close, the second bolt holes 40 on the second hanger 4 will be relatively dense, resulting in a lower structural strength of the second hanger 4, and thus a lower support strength of the second hanger 4 for the cable tray 5.

[0099] If the distance between two adjacent second bolt holes 40 is too far, when the second hanger 4 is connected to cable trays 5 of different sizes, it is easy for the second bolt holes 40 and the bolt holes on the cable tray 5 to be misaligned.

[0100] In some examples, the height of the first hanger 2 is 110 mm - 120 mm.

[0101] If the height of the first hanger 2 is too small, the structural strength of the first hanger 2 is lower, and thus the support strength of the first hanger 2 for the warm air duct 3 is lower.

[0102] If the height of the first hanger 2 is too large, the weight of the first hanger 2 will be too large, resulting in a large pulling force of the first hanger 2 on the structural column 1, and thus the first hanger 2 is likely to fall off the structural column 12.

[0103] Correspondingly, the height of the second hanger 4 is 110 mm - 120 mm. Among them, the height of the first hanger 2 and the height of the second hanger 4 can be the same or different, and the embodiments of the present disclosure do not make specific limitations on this.

[0104] The embodiments of the present disclosure also provide an automobile factory, characterized in that the automobile factory includes the above-described pipe column system.

[0105] Among them, the pipe column system can be laid in the stamping workshop, welding workshop, painting workshop or general assembly workshop of the automobile factory.

[0106] Due to the fact that the pipe column system laid in the automobile factory adopts a welding connection method, the technical solution provided by the embodiments of the present disclosure not only reduces the welding process, saves a large amount of resources, but also significantly reduces carbon emissions, simplifies the process flow, and improves the construction efficiency. It ensures that the construction process of the automobile factory meets the low-carbon goal and lays the foundation for the green and sustainable development of the automobile industry.

[0107] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A pipe string system, characterized in that: The pipe column system comprises a structural column (1), two groups of first hangers (2), two heating and ventilation pipes (3), two groups of second hangers (4) and two cable trays (5), wherein the outer side of the structural column (1) has a fireproof coating; The first hanger (2) and the second hanger (4) are alternately arranged along the circumference of the structural column (1), and the first hanger (2) and the second hanger (4) are both bolted to the structural column (1); Each of the heating and ventilation ducts (3) is respectively connected to a group of the first hangers (2) on one side facing away from the structural column (1) by bolts; Each of the cable trays (5) is respectively bolted to one side of a group of the second support hangers (4) facing away from the structural column (1).

2. The pipe string system according to claim 1, characterized in that: Each group of the first hangers (2) comprises a plurality of first hangers (2) arranged along the axial direction of the structural column, and each group of the second hangers (4) comprises a plurality of second hangers (4) arranged along the axial direction of the structural column; Both ends of the first hanger (2) are respectively fixedly connected to one of the second hangers (4).

3. The pipe string system according to claim 2, characterized in that: The second hanger (4) comprises a straight portion (41) and two bent portions (42); The straight portion (41) is fixed to the structural column (1), the two bent portions (42) are bent relative to the straight portion (41) in a direction away from the structural column (1), the bent portions (42) are fixedly connected to the first support hanger (2), and the cable tray (5) is fixed to the straight portion (41).

4. The pipe string system according to claim 3, characterized in that: The length of the bending portion (42) is 80 mm-120 mm.

5. The pipe string system according to claim 1, characterized in that: The length of the first hanger (2) is 850 mm-950 mm.

6. The pipe string system according to claim 1, characterized in that: Each group of the first hangers (2) comprises a plurality of first hangers (2) arranged along the axial direction of the structural column, and the axial spacing between two adjacent first hangers (2) is 1.6m-2m.

7. The pipe string system according to claim 1, characterized in that: The first hanger (2) has a plurality of first bolt holes (20) arranged along the length direction; The length of the first bolt hole (20) is greater than the height of the first bolt hole (20).

8. The pipe string system according to claim 7, characterized in that: The distance between two adjacent first bolt holes (20) is 50 mm-55 mm.

9. The pipe string system according to claim 1, characterized in that: The height of the first hanger (2) is 110 mm-120 mm.

10. An automobile factory, characterized in that: The automobile factory comprises the tubular column system according to any one of claims 1-9.

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