A new type of steel structure pipeline support with modularization and quick installation

Abstract

The utility model provides a novel steel structure pipeline support of modularization quick installation relates to petroleum chemical equipment technical field, the design of quick dismounting of steel structure pipeline support modularization of this application can make that the operation layout process of pipeline support gets simplified, and then the use effect of steel structure pipeline support is better, can realize the efficient installation and dismounting (greatly shorten the construction period) of pipeline support in high pressure gas conveying scene such as gas booster station or LNG receiving station, and at the same time have the characteristics of safety explosion -proof (eliminate the risk of welding spark) and flexible extension (reduce the cost of reconstruction and extension), have the large -scale application condition in the field of petroleum chemical industry.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical equipment technology, and more specifically, to a novel steel structure pipe support that can be modularly and quickly installed. Background Technology

[0002] As a core node for pressure regulation in long-distance oil and gas pipeline networks, gas booster stations have the following characteristics in their pipeline systems: (1) High-pressure dense layout: The station usually has multi-stage compressor unit inlet and outlet pipelines with working pressure of 4 to 12 MPa and pipeline spacing of only 300 mm. (2) Complex dynamic loads: The water hammer effect caused by the start-up and shutdown of the compressor can cause the instantaneous vibration acceleration of the pipeline to reach 5g; (3) Strict safety requirements: The support system must meet the fire protection requirements of Class II explosion-proof areas.

[0003] Traditional bolted and welded connection supports are no longer suitable for the high-efficiency construction needs of modern gas booster stations due to their long construction period and poor flexibility in modification. The following is an analysis of the technical defects of current pipe supports: 1. Defects in welded fixed brackets (1) Safety hazards: Hot work at gas stations requires a Level 1 hot work permit and inert gas protection measures, which directly increases construction costs; (2) Risk of thermal deformation: After welding, the hardness of the heat-affected zone of the steel increases by about 30%, which leads to stress concentration and fatigue cracks are likely to occur at the weld toe during long-term operation.

[0004] 2. Defects of bolt-fixed brackets (1) Precision defects: Traditional pipe supports use M20 and above bolt holes to connect holes. In actual projects, the cumulative error of the hole position often exceeds ±5mm, and it is necessary to enlarge the hole or use shims for compensation on site. (2) Insufficient scalability: When adding new pipelines later, more than 60% of the original supports need to be partially dismantled and rebuilt, resulting in project waste; 3. Lack of modular technology: Although the current pipe supports have achieved a prefabrication rate of about 90% for steel beams and columns in terms of steel structure, the design of their beam-column joints has not been optimized for the characteristics of pipe supports, resulting in low installation accuracy. In conclusion, the existing installation process for steel structure pipe supports needs further improvement. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art, and then to propose a new type of steel structure pipe support that can be modularly and quickly installed.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A novel modular and rapidly installable steel structure pipe support includes a square steel pipe column assembly, an H-beam crossbeam assembly, and a locking node kit. Multiple sets of H-beam crossbeam assemblies are connected to square steel tube column assemblies through locking node kits. The planar connection arrangement of square steel tube column assemblies and H-beam crossbeam assemblies at different positions of the pipe support is divided into cross type, T type, straight type and L type.

[0007] Furthermore, the square steel tube column assembly includes a cold-formed hollow square steel tube column and node area column surface ring corner pieces symmetrically welded to the four arc-shaped corners of the cold-formed hollow square steel tube column. The node area column table collar corner piece includes a collar top corner piece, a collar middle corner piece, and a collar bottom corner piece welded in sequence, and the collar top corner piece and the collar bottom corner piece are respectively provided with a first bolt hole.

[0008] Furthermore, the H-beam assembly includes an H-beam, a top flange of the beam end collar, a bottom flange of the beam end collar, and a middle extension reinforcing plate at the beam end. The top flange and bottom flange of the beam end collar are welded to the same end of the upper and lower flanges of the H-beam, respectively. The second bolt hole on the top flange of the beam end collar corresponds one-to-one with the first bolt hole on the top corner piece of the two adjacent collars and is accurately connected and locked by the locking node kit. The second bolt hole on the bottom flange of the beam end collar corresponds one-to-one with the first bolt hole on the bottom corner piece of the two adjacent collars and is accurately connected and locked by the locking node kit. The middle extension reinforcement plate at the beam end is welded to the outer end of the web of the H-beam.

[0009] Furthermore, V-shaped bevels are provided on the top flange of the beam end collar, the bottom flange of the beam end collar, and the middle extension reinforcement plate of the beam end.

[0010] Furthermore, the locking node kit includes a high-strength screw, bushing, visual tension indicator washer, and heavy-duty nut. Multiple high-strength screws pass sequentially through the second bolt hole on the top flange of the beam end collar and the first bolt hole on the top corner piece of the collar, and heavy-duty nuts are threaded onto the high-strength screws; The bushing is fitted onto the high-strength screw; Two visual tension indicator washers are fitted onto the high-strength bolt and contact the top flange of the beam end collar and the top corner piece of the collar, respectively.

[0011] Furthermore, the locking node kit includes a high-strength screw, bushing, visual tension indicator washer, and heavy-duty nut. Multiple high-strength screws pass sequentially through the second bolt hole on the bottom flange of the beam end collar and the first bolt hole on the bottom corner piece of the collar, and heavy-duty nuts are threaded onto the high-strength screws; The bushing is fitted onto the high-strength screw; Two visual tension indicator washers are fitted onto the high-strength bolt and contact the bottom flange of the beam end collar and the bottom corner piece of the collar, respectively.

[0012] Furthermore, the node area column collar corner piece is provided with spaced guide grooves, and the bottom corner piece of the collar is provided with a limiting plate.

[0013] Furthermore, the total height of the top flange of the beam end collar, the bottom flange of the beam end collar, and the middle extension reinforcement plate of the beam end is consistent with the height of the corner piece of the column collar in the node area.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. Advantages compared to welded fixed brackets (1) No on-site welding: This application adopts the method of factory prefabrication and on-site rapid assembly, avoiding on-site high-altitude welding, no hot work, and reducing safety risks; (2) High installation efficiency: Welding requires point-by-point welding and correction, which takes a long time; the application can achieve rapid positioning and insertion; (3) Good quality consistency: Welding quality is greatly affected by worker skills and climate conditions; the factory processing precision of this application is high and the on-site error is small.

[0015] 2. Advantages compared to bolt-fixed brackets (1) Reduce the number of bolts: The beam-column joint assembly in this application is a plug-in + bolt locking, which does not require a large number of bolts for fixing, thus reducing the amount of installation work; (2) Avoid secondary correction: Bolt fixing brackets often require repeated adjustment of hole positions and correction. In this application, the guide groove and the bottom limiting plate of the collar enable the components to automatically align, quickly position, and accurately assemble. (3) Better overall stiffness: Traditional bolted connections are prone to affecting node stiffness due to pores and friction. The plug-in + bolt locking structure of this application transmits force more directly and has better overall stiffness.

[0016] 3. Advantages compared to traditional modular supports (1) More thorough standardization: The modularity of this application is higher than that of general brackets. All nodes and components are prefabricated in the factory and no cutting is required on site; (2) Quick disassembly / expansion: Ordinary modular brackets still require partial modification; the modules in this application can be selectively added, removed or adjusted.

[0017] (3) Fewer construction steps: Traditional modular supports usually require bolts and partial welding; this application only requires plug-in connection and a small number of bolts for locking. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 Schematic diagram of the installation of the corner ring fittings for the column surface in the node area; Figure 3 A schematic diagram of the installation of the top corner piece of the collar; Figure 4 This is a schematic diagram of the installation of the extended reinforcement plate at the middle of the beam end; Figure 5 A schematic diagram of a V-shaped bevel; Figure label: 1. Square steel tube column assembly; 11. Cold-formed hollow square steel tube column; 12. Top corner fitting of collar; 13. Middle corner fitting of collar; 14. Bottom corner fitting of collar; 15. Limiting plate; 2. H-beam crossbeam assembly; 21. H-beam beam; 22. Top flange of beam end collar; 23. Bottom flange of beam end collar; 24. Middle extension reinforcement plate of beam end; 3. Locking node kit; 31. High-strength bolt; 32. Bushing; 33. Visualized tension indicator washer; 34. Heavy-duty nut; 40. Second bolt hole; 41. First bolt hole; 42. Guide groove; 43. V-groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: like Figures 1 to 5 As shown, a novel modular and quick-installation steel structure pipe support includes a square steel pipe column assembly 1, an H-beam crossbeam assembly 2, and a locking node kit 3. Multiple sets of H-beam crossbeam assemblies 2 are connected to square steel tube column assemblies 1 through locking node kits 3. The planar connection arrangement of square steel tube column assemblies 1 and H-beam crossbeam assemblies 2 at different positions of the pipe support is divided into cross type, T type, straight type and L type.

[0020] Specific implementation of this utility model solution, such as Figures 1 to 5 As shown, the square steel tube column assembly 1 includes a cold-formed hollow square steel tube column 11 and node area column surface ring corner pieces symmetrically welded to the four arc-shaped corners of the cold-formed hollow square steel tube column 11. The corner fitting of the column table in the node area includes a top corner fitting 12, a middle corner fitting 13, and a bottom corner fitting 14 welded in sequence, and the top corner fitting 12 and the bottom corner fitting 14 are respectively provided with first bolt holes 41.

[0021] Specific implementation of this utility model solution, such as Figures 1 to 5 As shown, the H-beam assembly 2 includes an H-beam 21, a top flange 22 of the beam end collar, a bottom flange 23 of the beam end collar, and a middle extension reinforcing plate 24 at the beam end. The top flange 22 and the bottom flange 23 of the beam end collar are respectively welded to the upper and lower flanges of the H-beam 21 at the same end. The second bolt hole 40 on the top flange 22 of the beam end collar corresponds one-to-one with the first bolt hole 41 on the top corner piece 12 of the two adjacent collars and is accurately docked and locked by the locking node kit 3. The second bolt hole 40 on the bottom flange 23 of the beam end collar corresponds one-to-one with the first bolt hole 41 on the bottom corner piece 14 of the two adjacent collars and is accurately docked and locked by the locking node kit 3. The beam end mid-section extension reinforcement plate 24 is welded to the outer end of the web of the H-beam 21 (the beam end mid-section extension reinforcement plate 24 can increase the stiffness of the beam collar flange and ensure the overall stability of the H-beam 21 under rapid assembly and subsequent load).

[0022] In order to achieve accurate docking and positioning between the components of this device, the above embodiment is further refined as shown in 5, with V-shaped bevels 43 provided on the top flange 22 of the beam end collar, the bottom flange 23 of the beam end collar, and the middle extension reinforcing plate 24 of the beam end.

[0023] Specific implementation of this utility model solution, such as Figures 1 to 5 As shown, the locking node kit 3 includes a high-strength screw 31 (specifically a hexagonal high-strength screw), a bushing 32 (specifically a polytetrafluoroethylene bushing 32), a visual tension indicator washer 33, and a heavy-duty nut 34 (specifically a heavy-duty hexagonal nut). Multiple high-strength screws 31 pass sequentially through the second bolt hole 40 on the top flange 22 of the beam end collar and the first bolt hole 41 on the top corner piece 12 of the collar, and heavy-duty nuts 34 are threaded onto the high-strength screws 31. Bushing 32 is fitted onto high-strength screw 31; Two visual tension indicator washers 33 are fitted onto the high-strength screw 31 and contact the top flange 22 of the beam end collar and the top corner piece 12 of the collar, respectively.

[0024] Alternatively, multiple high-strength screws 31 pass sequentially through the second bolt hole 40 on the bottom flange 23 of the beam end collar and the first bolt hole 41 on the bottom corner piece 14 of the collar, and heavy-duty nuts 34 are threaded onto the high-strength screws 31. Bushing 32 is fitted onto high-strength screw 31; Two visual tension indicator washers 33 are fitted onto the high-strength screw 31 and contact the bottom flange 23 of the beam end collar and the bottom corner piece 14 of the collar, respectively.

[0025] Specific implementation of this utility model solution, such as Figures 1 to 5 As shown, the corner fittings of the column collar in the node area are provided with spaced guide grooves 42, and the bottom corner fittings 14 of the collar are all provided with limiting plates 15. The guide grooves 42 and the limiting plates 15 provide positioning guidance during rapid assembly, ensuring that the beam end can be quickly inserted into the correct position during hoisting, reducing the time for high-altitude adjustment and correction, avoiding rotation or misalignment of components during installation, and ensuring a fast, accurate, and reliable assembly effect for the node. This conforms to the concept of rapid assembly and is one of the key details for achieving efficient assembly of modular steel structures. The above rapid assembly can be briefly summarized as plug-in + bolt locking.

[0026] In a further refinement of the embodiment of this utility model, the total height of the top flange 22 of the beam end collar, the bottom flange 23 of the beam end collar, and the middle extension reinforcing plate 24 of the beam end is consistent with the height of the corner piece of the column surface collar in the node area.

[0027] The manufacturing process of steel structure pipe supports is as follows: 1. Processing and manufacturing flow of square steel tube column assembly 1 (1) Cutting: According to the construction drawings of the steel structure pipe support, the cold-bent hollow square steel pipe is cut to the design length by the laser cutting machine, and the verticality error of the end face is ≤0.1mm (total length); then the column surface sleeve corner pieces in the node area are configured; (2) Corner machining: The four corners of the cold-formed hollow square steel tube column 11 are all machined into arc shapes on a five-axis CNC milling machine to connect the corner rings of the column surface in the node area; (3) Welding: Gas shielded welding is used on the steel column assembly production line in the processing workshop to butt weld the corner ring of the column surface in the node area to the cold-formed hollow square steel pipe, ensuring that the corner ring of the column surface in the node area and the cold-formed hollow square steel pipe are welded with equal strength and accurately positioned; (4) Post-treatment: grind and polish the weld, sandblast the steel components to remove rust (Sa2.5 grade), and hot-dip galvanize.

[0028] 2. Processing and manufacturing flow of H-beam crossbeam assembly 2 (1) Cutting: According to the construction drawings of the steel structure pipe support, the H-beam 21 is cut to the design length by the laser cutting machine, and the verticality error of the end face is ≤0.1mm (total length); the top flange 22 of the beam end collar, the bottom flange 23 of the beam end collar and the middle extension reinforcement plate 24 of the beam end are configured, and the total height of the three is consistent with the height of the corner piece of the column surface collar in the node area. (2) End processing: A V-shaped bevel is processed on the end of the H-beam 21 using a five-axis CNC milling machine. This bevel is used to connect the top flange 22 of the beam end collar, the bottom flange 23 of the beam end collar, and the middle extension reinforcing plate 24 of the beam end to the H-beam 21. (3) Welding: Gas shielded welding is used on the steel beam assembly line in the processing workshop to weld the beam end collar flange and the beam end middle extension reinforcement plate 24 in the node area to the V-shaped groove on the H-shaped steel beam 21, respectively, to ensure that the beam end collar flange and the beam end middle extension reinforcement plate 24 in the node area are connected to the H-shaped steel beam 21 with equal strength and are accurately positioned. (4) Post-treatment: grind and polish the weld, sandblast the steel components to remove rust (Sa2.5 grade), and hot-dip galvanize.

[0029] The assembly process of the node assembly of H-beam crossbeam 2 and square steel tube column 1 can then be carried out.

[0030] The on-site installation process of this utility model is as follows: First, during the construction preparation phase, a total station is used to locate the foundation embedded plate, with a flatness error of ≤2mm / m; then, according to the steel structure pipe support construction layout drawing, the modular components in this application are transported to the corresponding area to avoid secondary handling; Step 1: Installation of square steel tube column assembly 1. After hoisting the cold-formed hollow square steel tube column 11 into position, insert the foundation anchor bolts and initially tighten the nuts to 30% torque. After measuring the verticality of the cold-formed hollow square steel tube column 11 with a total station and confirming it meets the requirements, use a torque wrench to tighten the anchor bolts in three stages to the final torque value. (The total station, anchor bolts, and torque wrench are not shown in the diagram. The total station and torque wrench use existing technology without modification.) Step 2: Connect the H-beam 21 to the cold-formed hollow square steel pipe. With the help of the guide groove 42 on the corner piece of the column in the node area and the limiting plate 15 on the bottom corner piece, quickly insert the H-beam 21 into the accurate position of the node. The second bolt hole 40 on the flange of the beam end collar corresponds accurately to the first bolt hole 41 on the corner piece of the column in the node area. Step 3: Install the hexagonal high-strength screw, visual tension indicator washer 33, PTFE bushing 32, and heavy-duty hexagonal nut in sequence. Rotate the hexagonal high-strength screw to generate axial pre-tension until the visual tension indicator washer 33 clearly shows that the heavy-duty hexagonal nut has reached the designed pre-tension, completing the final locking. Repeat the above steps to complete the installation of the entire pipe support.

[0031] Step 4: Quality acceptance standards: Column verticality: ≤H / 1000 and ≤15mm (total height); Beam horizontality: ≤L / 500 and ≤10mm (single span).

[0032] The advantages of this utility model application compared to existing pipe support technology are summarized as follows: 1. Advantages compared to welded fixed brackets (1) No on-site welding: This application adopts the method of factory prefabrication and on-site rapid assembly, avoiding on-site high-altitude welding, no hot work, and reducing safety risks; (2) High installation efficiency: Welding requires point-by-point welding and correction, which takes a long time; the application can achieve rapid positioning and insertion; (3) Good quality consistency: Welding quality is greatly affected by worker skills and climate conditions; the factory processing precision of this application is high and the on-site error is small.

[0033] 2. Advantages compared to bolt-fixed brackets (1) Reduce the number of bolts: The beam-column joint assembly in this application is a plug-in + bolt locking, which does not require a large number of bolts for fixing, thus reducing the amount of installation work; (2) Avoid secondary correction: Bolt fixing brackets often require repeated adjustment and correction of hole positions. In this application, the guide groove 42 and the bottom limiting plate 15 of the collar enable the components to automatically align, quickly position, and accurately assemble. (3) Better overall stiffness: Traditional bolted connections are prone to affecting node stiffness due to pores and friction. The plug-in + bolt locking structure of this application transmits force more directly and has better overall stiffness.

[0034] 3. Advantages compared to traditional modular supports (1) More thorough standardization: The modularity of this application is higher than that of general brackets. All nodes and components are prefabricated in the factory and no cutting is required on site; (2) Quick disassembly / expansion: Ordinary modular brackets still require partial modification; the modules in this application can be selectively added, removed or adjusted.

[0035] (3) Fewer construction steps: Traditional modular supports usually require bolts and partial welding; this application only requires plug-in connection and a small number of bolts for locking.

[0036] 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 descriptions of the above embodiments and specifications 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel modular and rapidly installable steel structure pipe support, characterized in that, It includes square steel tube column assembly (1), H-beam crossbeam assembly (2) and locking node kit (3). Multiple sets of H-beam crossbeam assemblies (2) are connected to square steel pipe column assemblies (1) through locking node kits (3), and the planar connection arrangement of square steel pipe column assemblies (1) and H-beam crossbeam assemblies (2) at different positions of the pipe support is divided into cross type, T type, straight type and L type.

2. The novel modular and rapidly installable steel structure pipe support according to claim 1, characterized in that, The square steel tube column assembly (1) includes a cold-formed hollow square steel tube column (11) and node area column surface ring corner pieces symmetrically welded to the four arc-shaped corners of the cold-formed hollow square steel tube column (11). The corner fitting of the column table in the node area includes a top corner fitting (12), a middle corner fitting (13), and a bottom corner fitting (14) welded in sequence, and a first bolt hole (41) is opened on the top corner fitting (12) and the bottom corner fitting (14).

3. A novel modular and rapidly installable steel structure pipe support according to claim 2, characterized in that, The H-beam assembly (2) includes an H-beam (21), a top flange (22) of the beam end collar, a bottom flange (23) of the beam end collar, and a middle extension reinforcement plate (24) at the beam end. The top flange (22) of the beam end collar and the bottom flange (23) of the beam end collar are respectively welded to the upper flange and the lower flange of the H-beam (21); The second bolt hole (40) on the top flange (22) of the beam end collar corresponds one-to-one with the first bolt hole (41) on the top corner piece (12) of the two adjacent collars and is accurately docked and locked by the locking node kit (3). The second bolt hole (40) on the bottom flange (23) of the beam end collar corresponds one-to-one with the first bolt hole (41) on the bottom corner piece (14) of the two adjacent collars and is accurately docked and locked by the locking node kit (3). The middle extension reinforcement plate (24) of the beam end is welded to the outer end of the web of the H-beam (21).

4. A novel modular and rapidly installable steel structure pipe support according to claim 3, characterized in that, V-shaped bevels (43) are provided on the top flange (22) of the beam end collar, the bottom flange (23) of the beam end collar, and the middle extension reinforcement plate (24) of the beam end.

5. A novel modular and rapidly installable steel structure pipe support according to claim 3, characterized in that, The locking node kit (3) includes a high-strength screw (31), a bushing (32), a visual tension indicator washer (33), and a heavy-duty nut (34). Multiple high-strength screws (31) pass sequentially through the second bolt hole (40) on the top flange (22) of the beam end collar and the first bolt hole (41) on the top corner piece (12) of the collar, and the high-strength screws are threaded with heavy-duty nuts (34). The bushing (32) is fitted onto the high-strength screw (31); Two visual tension indicator washers (33) are fitted on the high-strength screw (31) and contact the top flange (22) of the beam end collar and the top corner piece (12) of the collar, respectively.

6. A novel modular and rapidly installable steel structure pipe support according to claim 3, characterized in that, The locking node kit (3) includes a high-strength screw (31), a bushing (32), a visual tension indicator washer (33), and a heavy-duty nut (34). Multiple high-strength screws (31) pass sequentially through the second bolt hole (40) on the bottom flange (23) of the beam end collar and the first bolt hole (41) on the bottom corner piece (14) of the collar, and the high-strength screws are threaded with heavy-duty nuts (34). The bushing (32) is fitted onto the high-strength screw (31); Two visual tension indicator washers (33) are fitted on the high-strength screw (31) and are in contact with the bottom flange (23) of the beam end collar and the bottom corner piece (14) of the collar, respectively.

7. A novel modular and rapidly installable steel structure pipe support according to claim 2, characterized in that, The node area column table collar corner piece is provided with spaced guide grooves (42), and the bottom corner piece (14) of the collar is provided with a limiting plate (15).

8. A novel modular and rapidly installable steel structure pipe support according to claim 3, characterized in that, The total height of the top flange (22) of the beam end collar, the bottom flange (23) of the beam end collar, and the middle extension reinforcement plate (24) of the beam end are consistent with the height of the corner piece of the column collar in the node area.

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