Polar environment outdoor pipeline integrated assembly support system

Abstract

The utility model discloses polar environment outdoor pipeline integrated assembly type support system, including bearing structure, steel support module, lower function frame layer, support a group of parallel interval arrangement's pipeline module, the horizontal adjusting groove is set up on the cross arm lower beam, through the position of adjusting limit bolt in horizontal adjusting groove, realize horizontal installation adjustment, upper function frame layer is used for supporting cable bridge module, the bottom left and right sides center of steel support module is equipped with the horizontal ferrule connecting piece respectively in the position corresponding to the support steel column, and the bottom of steel support module sits on the adjustable support support piece of corresponding support steel column, through adjusting the position of adjustable support support piece on the support steel column, realizes vertical installation adjustment. The utility model discloses adopt the modular design of full bolt connection, and the assembly speed is fast, and the outdoor operation time is reduced, and the bidirectional adjustment eliminates the cumulative error between the module, guarantees the pipeline flatness and installation accuracy. The pipeline adopts the unified core pipe material, and the site simplifies the construction.

Description

Technical Field

[0001] This utility model belongs to the field of polar engineering, and in particular, it is an integrated prefabricated support system for outdoor pipelines in polar environments. Background Technology

[0002] In polar scientific research, resource development, and other engineering fields, outdoor integrated pipelines, which generally include water supply and drainage, heating, fire protection, cable trays, and oil supply, are core infrastructures that ensure the normal operation of polar facilities. Due to the extreme low temperatures (down to -60℃), strong winds (maximum wind speeds exceeding 40m / s), and high salt spray corrosion in the polar environment, the effective construction period is less than two months per year due to environmental factors, making traditional pipelines and installation technologies inadequate. The specific problems are as follows: 1. Traditional support pipe racks are heavy, and the operation and safety risks are still high. Under the special working conditions of the polar regions, the transportation and installation loads are large, and most of them are welded on site. The modularity is insufficient, the amount of on-site work is large, the construction efficiency is low, and it is difficult to adapt to the short construction window in the polar regions. At the same time, the corrosion resistance is insufficient, and it is easy to corrode and be damaged in the high salt spray environment.

[0003] Second, when installing pipelines on traditional support pipe racks, due to installation errors between the modules of the support pipe rack, there are inconsistent vertical height differences between the modules, and the left and right are not aligned and difficult to align. As a result, when the pipelines on the modules are connected and installed, cumulative errors will also occur. Under special polar conditions, this error cannot be eliminated quickly and effectively.

[0004] Third, due to the different functions of each pipeline and the use of different pipe materials, the connection methods are not uniform, which increases the complexity of on-site construction for workers and makes the outdoor work time, i.e., the construction period, longer.

[0005] Therefore, there is an urgent need for a prefabricated pipe rack system that is suitable for polar environments, has a high prefabrication rate, rapid assembly, adjustable error, and strong weather resistance. Utility Model Content

[0006] The purpose of this utility model is to provide an integrated prefabricated support system for outdoor pipelines in polar environments. It aims to solve the technical problems of existing pipeline installation technology being unsuitable for polar environments, including inconsistent pipeline materials, long construction periods, low modularity of support frames, high operational risks, insufficient corrosion resistance, and the inability to effectively eliminate installation errors of supports and pipelines.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An integrated prefabricated support system for outdoor pipelines in polar environments includes: The load-bearing structure includes two independent foundations arranged symmetrically in the transverse direction, and two supporting steel columns that correspond one-to-one with the independent foundations. The bottom end of each supporting steel column is fixedly connected to the corresponding foundation. Each supporting steel column is also equipped with an adjustable support bracket at its top. The steel support module includes a main steel frame for the integrated installation of various outdoor pipelines, and also includes: The lower functional frame includes a set of crossbeams installed within the main steel frame to support a set of parallel and spaced pipe modules. The crossbeams have horizontal adjustment grooves. Each pipe module is detachably fastened to the top surface of the crossbeams via corresponding limiting clamps. Each limiting clamp is anchored by adjusting limiting bolts that penetrate the horizontal adjustment grooves. By adjusting the position of the limiting bolts within the horizontal adjustment grooves, the horizontal installation error of the pipe modules can be infinitely adjusted. The upper functional frame layer includes a set of crossbeams set within the main steel frame to support the cable tray modules, which are detachably fixed to the top surface of the crossbeams by connecting bolts. At the bottom left and right center of the steel support module, horizontal sleeve connectors are provided corresponding to the positions of the supporting steel columns. Each sleeve connector is fitted onto the supporting steel column, so that the bottom end of the steel support module rests on the adjustable support bracket of the corresponding supporting steel column. By adjusting the position of the adjustable support bracket on the supporting steel column, the vertical installation error of the steel support module can be infinitely adjusted.

[0008] All components of the steel support module are made of weathering steel and coated with an anti-corrosion composite paint layer. The main steel frame includes two vertical main frames arranged longitudinally opposite each other. The vertical main frames include an upper chord beam, a lower chord beam, and a set of short web members that are detachably connected between the two by connecting bolts. The upper chord beam, lower chord beam, and short web members are all C-shaped steel with connecting end plates. The openings of the upper chord beam and lower chord beam face inward, and the openings of the short web members face outward.

[0009] The positions of each crossbeam lower beam and each web member short column correspond one-to-one. The two ends of the crossbeam lower beam are detachably connected to the lower chord beams on both sides by connecting bolts. The positions of each crossbeam and each web member short column correspond one-to-one, and the two ends of each crossbeam are detachably connected to the corresponding web member short columns on both sides by connecting bolts. The steel support module also includes a set of upper beams of crossarms that correspond one-to-one with the positions of the lower beams and middle beams of each crossarm. The two ends of the lower beams of crossarms are detachably connected to the upper chord beams on both sides by connecting bolts. The lower beam, middle beam, and upper beam of the crossarm are all C-shaped steel with downward-facing openings and connecting end plates.

[0010] The total transverse length of the horizontal adjustment groove is designed to accommodate the horizontal adjustment of each limiting hoop. The limiting hoop is Ω-shaped and its width is greater than the width of the horizontal adjustment groove. The limiting hoop ear plates on both sides of the limiting hoop have adjustment holes for the adjusting limiting bolts to pass through.

[0011] The sleeve connector includes a U-shaped steel hoop, and the lower chord beam includes a lower beam back plate, a lower beam top plate, and a lower beam bottom plate. The lower beam back plate has sleeve holes at the corresponding foot positions of the U-shaped steel hoop, and the foot is threaded. The foot passes through the sleeve holes and is fastened to the inner wall of the lower beam back plate by the sleeve nuts.

[0012] The adjustable support bracket includes two Ω-shaped clamps arranged opposite each other. The clamp ear plates on both sides of the clamps are provided with open slots. A horizontal clamp screw is inserted into the open slot of the clamp ear plate on the same side. The clamp nuts at both ends of the clamp screw are respectively tightened to the corresponding clamp ear plates. The bottom plate of the lower beam sits on the top surface of the inner clamp ear plate.

[0013] The supporting steel columns are corrosion-resistant steel pipes with a zinc-aluminum alloy coating on the surface. The independent foundation is a cast-in-place foundation in frozen soil pit. Four column base bolts are pre-embedded in the independent foundation. The column base plate is welded to the bottom of the supporting steel column, and the column base bolts are anchored through the four corners of the column base plate.

[0014] The polar environment outdoor pipeline integrated prefabricated support system also includes encapsulated pipeline modules. The core pipe of the pipeline module is a steel wire mesh skeleton composite high-density polyethylene matrix pipe with a wall thickness of not less than 50mm.

[0015] The pipeline module also includes an insulation and heat tracing composite layer wrapped around the core pipe. The insulation and heat tracing composite layer includes an inner polyurethane insulation layer and an outer stainless steel protective layer. The heat tracing cable structure is laid inside the polyurethane insulation layer.

[0016] The length of the steel support module shall not exceed 6m and the weight shall not exceed 450kg. The upper and lower chord beams of adjacent steel support modules shall be in contact with each other. The length of the pipe module shall not exceed 6m. Adjacent pipe modules shall be connected by flanges with built-in low-temperature resistant silicone sealant and matching bolts.

[0017] Compared with the prior art, this utility model has the following features and beneficial effects: The steel support module of this utility model adopts a fully bolted modular design, which is suitable for special polar working conditions. The single section is lightweight (≤450kg), which is convenient for transportation and manual handling, reducing the dependence on large machinery in polar regions. All connections are bolted, eliminating the need for on-site welding, and the assembly speed is fast. It is very suitable for the short construction window in polar regions, reducing outdoor work time.

[0018] This utility model achieves stepless adjustment of the horizontal installation error of the pipeline module by using a limiting clamp in conjunction with a horizontal adjustment groove. The steel support module is limited by the clamp connector, and the steel support module is supported by an adjustable support bracket. By adjusting the position of the adjustable support bracket on the supporting steel column, the vertical installation error of the steel support module is also achieved, eliminating the inconsistency in vertical height difference and misalignment of the modules caused by installation errors between modules. This eliminates the cumulative errors in manufacturing and installation, and ensures the straightness and installation accuracy of the pipeline.

[0019] This utility model adopts a modular design for pipeline modules. The pipeline uses a unified core pipe material, namely a steel wire mesh reinforced composite high-density polyethylene (HDPE) matrix pipe, covering water supply, drainage, fire protection, and heating pipelines. It utilizes the low-temperature toughness of the HDPE matrix pipe (no brittle fracture at -60℃), the ring stiffness reinforced by the steel skeleton (withstanding internal pressure ≥1.6MPa), and its full corrosion protection properties (HDPE coating isolates salt spray corrosion), replacing traditional steel or cast iron pipes. The pipeline modules are fastened together using flanges and bolts with built-in low-temperature resistant silicone sealant (weather resistant from -80℃ to +200℃), simplifying on-site construction. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] Figure 1 This is a structural diagram of the two modules of this utility model.

[0022] Figure 2 yes Figure 1 A schematic diagram of the longitudinal side view structure.

[0023] Figure 3 yes Figure 1 A schematic diagram of the supporting steel columns.

[0024] Figure 4 yes Figure 2 A schematic diagram of the supporting steel columns.

[0025] Figure 5 This is a schematic diagram of the structure of the sleeve connector and the adjustable support bracket in this embodiment.

[0026] Figure 6 yes Figure 1 A schematic diagram of the transverse side view structure.

[0027] Figure 7 yes Figure 1 A top view of the lower functional shelf structure.

[0028] Figure 8 yes Figure 7 A partially enlarged structural diagram of the supporting steel column.

[0029] Figure 9 This is a three-dimensional structural diagram of the end of the module of this utility model.

[0030] Figure 10 This is a schematic diagram of the horizontal three-dimensional structure of this utility model.

[0031] Figure 11 This is a cross-sectional schematic diagram of the pipe module of this utility model.

[0032] Figure reference numerals: 1 - Independent foundation, 2 - Supporting steel column, 21 - Column base plate, 3 - Adjustable support bracket, 31 - Clamp ear plate, 32 - Open slot, 33 - Clamp bolt, 34 - Clamp nut, 4 - Main steel frame, 41 - Upper chord beam, 42 - Lower chord beam, 421 - Lower beam back plate, 422 - Lower beam top plate, 423 - Lower beam bottom plate, 424 - Clamp hole, 43 - Web member short column, 5 - Crossbeam lower beam, 6 - Pipe module, 61 - Core pipe, 62 - polyurethane insulation layer, 63 - stainless steel protective layer, 64 - heat tracing cable structure, 7 - horizontal adjustment groove, 8 - limit clamp, 81 - limit clamp ear plate, 9 - adjusting limit bolt, 10 - crossarm middle beam, 11 - sleeve connection piece, 111 - thread, 112 - sleeve nut, 113 - U-shaped steel clamp, 12 - crossarm upper beam, 13 - column base bolt, 14 - flange, 15 - cable tray module, 20 - connecting bolt. Detailed Implementation

[0033] See the examples. Figure 1-11 As shown, an integrated prefabricated support system for outdoor pipelines in polar environments includes: For load-bearing structures, see Figure 1-11 As shown, the structure includes two horizontally symmetrical independent foundations 1, and two supporting steel columns 2 corresponding to each independent foundation 1. The bottom end of each supporting steel column 2 is fixedly connected to the corresponding foundation. Each supporting steel column 2 is also equipped with an adjustable support bracket 3 at its top. The supporting steel columns 2 are corrosion-resistant steel pipes with a zinc-aluminum alloy coating and a composite sealing paint finish. The independent foundations 1 are cast-in-place foundations in frozen soil pits. Four column anchor bolts 13 are pre-embedded within the independent foundations 1. A column base plate 21 is welded to the bottom of each supporting steel column 2. The column base plate 21 can be fitted with shear keys. The column anchor bolts 13 are anchored through the four corners of the column base plate 21. The bottom end of each column anchor bolt 13 has an anchor hook.

[0034] In this embodiment, the supporting steel column 2 is made of corrosion-resistant steel pipe with a diameter of 150mm, and the column base bolt 13 is a high-strength bolt (8.8 grade weathering steel). At the same time, two lateral fixing points are set every 2 meters, and the wind load resistance is ≥1.5kPa.

[0035] Steel support module, see Figure 1-4As shown in Figures 6-10, the system includes a main steel frame 4 for the integrated installation of various outdoor pipelines. All components of the steel support module are made of weathering steel and coated with an anti-corrosion composite paint layer. The main steel frame 4 includes two vertical main frames arranged longitudinally opposite each other. The vertical main frames include an upper chord beam 41, a lower chord beam 42, and a set of short web members 43 that are detachably connected between the two by connecting bolts 20. The upper chord beam 41, the lower chord beam 42, and the short web members 43 are all C-shaped steel with connecting end plates. The openings of the upper chord beam 41 and the lower chord beam 42 face inward, and the openings of the short web members 43 face outward.

[0036] The steel support module also includes: See the lower functional layer. Figure 6-10 As shown, a set of crossbeams 5 are installed within the main steel frame 4 to support a set of parallel and spaced pipe modules 6. Horizontal adjustment grooves 7 are provided on the crossbeams 5. Each pipe module 6 is detachably fastened to the top surface of the crossbeams 5 by corresponding limiting clamps 8. Each limiting clamp 8 is anchored by adjusting limiting bolts 9 that penetrate the horizontal adjustment grooves 7. By adjusting the position of the limiting bolts 9 within the horizontal adjustment grooves 7, the horizontal installation error of the pipe modules 6 can be infinitely adjusted.

[0037] The total transverse length of the horizontal adjustment groove 7 is based on the horizontal adjustment of each limiting hoop 8. The limiting hoop 8 is Ω-shaped and its width is greater than the groove width of the horizontal adjustment groove 7. The limiting hoop ear plates 81 on both sides of the limiting hoop 8 have adjustment holes for the adjusting limiting bolts 9 to pass through.

[0038] The upper functional frame layer includes a set of crossbeams 10 set in the main steel frame 4 to support the cable tray module 15, which is detachably fixed to the top surface of the crossbeams 10 by connecting bolts 20.

[0039] See Figure 2-8 As shown in Figure 10, horizontal clamp connectors 11 are respectively installed at the center of the left and right sides of the bottom of the steel support module, corresponding to the positions of the supporting steel columns 2. Each clamp connector is fitted onto the supporting steel column 2, so that the bottom end of the steel support module rests on the adjustable support bracket 3 of the corresponding supporting steel column 2. By adjusting the position of the adjustable support bracket 3 on the supporting steel column 2, the vertical installation error of the steel support module can be infinitely adjusted. The supporting steel column 2 supports the weight of the steel support module through the clamp connectors 11.

[0040] The sleeve connector 11 includes a U-shaped steel hoop 113, see [link / reference]. Figure 9 As shown, the lower chord beam 42 includes a lower beam back plate 421, a lower beam top plate 422, and a lower beam bottom plate 423. The lower beam back plate 421 has a sleeve hole 424 at the position of the foot of the U-shaped steel hoop 113. The foot has a thread 111. The foot passes through the sleeve hole 424 and is fastened to the inner wall of the lower beam back plate 421 by the sleeve nut 112.

[0041] See Figure 1-8 As shown in Figure 10, the adjustable support bracket 3 includes two Ω-shaped clamps arranged opposite each other. The clamp ear plates 31 on both sides of the clamps are provided with open slots 32. The open slots 32 of the clamp ear plates 31 on the same side are inserted into the horizontal clamp screws 33. The clamp nuts 34 at both ends of the clamp screws 33 are respectively tightened to the corresponding clamp ear plates 31. The lower beam bottom plate 423 is located on the top surface of the inner clamp ear plates 31.

[0042] The lower crossbeam 5 is a C-shaped steel with a downward-opening end plate. Each lower crossbeam 5 corresponds to one of the short web members 43 in position, and both ends of the lower crossbeam 5 are detachably connected to the lower chord beams 42 on both sides via connecting bolts 20. Each middle crossbeam 10 corresponds to one of the short web members 43 in position, and both ends of the middle crossbeam 10 are detachably connected to the corresponding short web members 43 on both sides via connecting bolts 20. The steel support module also includes a set of upper crossbeams 12, each corresponding to one of the lower crossbeams 5 and the middle crossbeams 10 in position. Both ends of the lower crossbeams 5 are detachably connected to the upper chord beams 41 on both sides via connecting bolts 20. Both the middle crossbeams 10 and the upper crossbeams 12 are C-shaped steel with a downward-opening end plate.

[0043] See Figure 6-7 As shown in Figures 9-11, the integrated prefabricated support system for outdoor pipelines in polar environments also includes encapsulated pipeline modules 6. (See Figure 9-11 for details.) Figure 11 As shown, the core pipe 61 of the pipeline module 6 is a steel wire mesh reinforced composite high-density polyethylene base pipe, and the wall thickness of the core pipe 61 is not less than 50mm. The pipeline module 6 also includes a heat-insulating and heat-tracing composite layer wrapped around the core pipe 61. The heat-insulating and heat-tracing composite layer includes an inner polyurethane insulation layer 62 and an outer stainless steel protective layer 63. A heat-tracing cable structure 64 is laid inside the polyurethane insulation layer 62.

[0044] In this embodiment, the piping systems for each function are unified and standardized, specifically covering water supply and drainage, fire protection, and heating pipelines with diameters ranging from DN100 to DN150. Utilizing the low-temperature toughness of its high-density polyethylene (HDPE) matrix (no brittle fracture at -60℃), the ring stiffness reinforced by a steel skeleton (withstanding internal pressure ≥1.6MPa), and its full corrosion resistance (HDPE coating isolates it from salt spray corrosion), it replaces traditional heterogeneous pipes such as steel pipes and cast iron pipes. The cable trays are made of 316L stainless steel, with dimensions of 600mm × 150mm suitable for high-voltage wiring and 400mm × 150mm suitable for low-voltage wiring. During factory pre-installation, the core pipe 61 of the heating pipe is made of 80mm thick high-density polyurethane (density ≥60kg / m³, thermal conductivity ≤0.022W / (m・K)), the core pipe 61 of the water supply, drainage and fire protection pipes is made of 50mm thick polyurethane, and the stainless steel protective layer 63 is a 0.5mm thick 304 stainless steel protective layer, using interlocking connection to prevent snow and ice accumulation; the polyurethane insulation layers 62 of different pipelines are distinguished by color marking (red for heating, blue for water supply) to reduce the risk of incorrect installation on site.

[0045] In this embodiment, a lightweight modular design and installation method are adopted. The steel support module adopts a combination design of main steel frame 4 and functional layer. The main steel frame 4 is made of low alloy steel (Q355NH weathering steel, low-temperature impact toughness ≥27J / -60℃). The length of the steel support module does not exceed 6m, and the weight does not exceed 450kg (suitable for 4-6 people to handle). The upper chord beam 41 and lower chord beam 42 of adjacent steel support modules are abutted. The length of the pipe module 6 does not exceed 6m. The flange interfaces of adjacent pipe modules 6 are fitted with low-temperature resistant silicone-based sealant (-80℃~+200℃). Assembled pipe sections with positioning pins are used. All modules are cold-connected via flange 14 and matching bolts. This connection method avoids the risk of low-temperature brittle fracture with a non-welded stress dispersion design, adapts to high-difficulty maintenance needs with its "removable and repairable" characteristics, and uses flexible sealing combined with modular advantages to cope with freeze-thaw cycles, settlement, and harsh construction conditions, achieving a safe, reliable, easy-to-maintain, and highly adaptable effect. (See this embodiment for further details.) Figure 2 and Figure 7 As shown, the length of the steel support module and the length of the pipe module 6 can be the same.

[0046] In this embodiment, all metal components are made of weathering steel or 316L stainless steel. The contact surfaces can be covered with 2mm thick PTFE sheets to reduce friction damage and improve corrosion resistance. The anti-corrosion composite paint layer on the surface of each component of the steel support module includes a zinc-rich primer, an epoxy intermediate coat, and an acrylic topcoat.

[0047] The construction process in this embodiment is as follows: Step 1, Factory Prefabrication Process: Based on the BIM 3D model, complete the detailed design of all professional pipelines, decompose the pipe section into 6m steel support module units, pipe module units, and load-bearing structure units. Among them, the pipe module unit completes the polyurethane insulation layer foaming, heat tracing cable laying of structure 64, and stainless steel protective layer encapsulation on a dedicated tooling line, forming a "ready-to-use" prefabricated module; the heat tracing cable structure 64 is pre-installed in the factory with series double-conductor double-wire constant power heating cable, 5mm away from the pipe wall, equipped with stainless steel conduit protection and temperature sensor, and connected to the PLC control system to achieve constant temperature control of 5℃~10℃; the cable joint is sealed with glue, reducing the number of on-site joints by 80%.

[0048] Step 2, On-site rapid assembly process: Step a, Construction of the load-bearing structure: First, excavate the foundation pit in the frozen soil layer, then install the column base bolts 13 and calibrate the elevation. Use a level to control the top error of the column base bolts 13, then pour the concrete of the independent foundation 1, exposing the column base bolts 13; then tighten the column base plate 21 of the supporting steel column 2 to the column base bolts 13, and the load-bearing structure is installed; then fit the adjustable support bracket 3 on the supporting steel column 2, and use a level to control the top error of the adjustable support bracket 3; Step b, steel support module assembly: quickly align on the ground using positioning pins, splice the main steel frame 4, and fix the sleeve connector 11 to the lower chord beam 42; Step c: hoist the lower functional frame layer and bolt it to the main steel frame 4; then put the hoop connector 11 of the main steel frame 4 onto the supporting steel column 2; Step d: Use a hand chain hoist to lift the pipe module 6 down the functional shelf and connect it to the horizontal adjustment groove 7 in an adjustable manner via the limit clamp 8; Step e: hoist the upper functional rack layer and bolt it to the main steel frame 4; use a hand chain hoist to hoist the cable tray module 15 to the upper functional rack layer and bolt it. Step f: The upper beam 12 of the hoisting crossbeam is bolted to the main steel frame 4; Step g: Adjacent pipe modules 6 are quickly connected via flanges 14 with built-in low-temperature resistant silicone sealant and matching bolts, and simultaneously connected to the power supply of the heat tracing cable structure 64; when adjacent steel support modules, pipe modules 6 and cable tray modules 15 are connected, the horizontal installation error of pipe modules 6 is adjusted by adjusting the position of limit bolts 9 in the horizontal adjustment groove 7, and the vertical installation error of steel support modules is adjusted by adjusting the position of adjustable support brackets 3 on the supporting steel column 2.

Claims

1. An integrated prefabricated support system for outdoor pipelines in polar environments, characterized in that, include: The load-bearing structure includes two independent foundations (1) arranged symmetrically in the transverse direction, and two supporting steel columns (2) arranged one-to-one with the independent foundations (1). The bottom end of each supporting steel column (2) is fixedly connected to the corresponding foundation. Each supporting steel column (2) is also provided with an adjustable support bracket (3) at the top. The steel support module includes a main steel frame (4) for the integrated installation of various outdoor pipelines, and also includes: The lower functional frame includes a set of crossbeams (5) set in the main steel frame (4) to support a set of parallel and spaced pipe modules (6). A horizontal adjustment groove (7) is provided on the crossbeams (5). Each pipe module (6) is detachably fastened to the top surface of the crossbeams (5) by a corresponding limiting clamp (8). Each limiting clamp (8) is anchored by an adjusting limiting bolt (9) that passes through the horizontal adjustment groove (7). By adjusting the position of the limiting bolt (9) in the horizontal adjustment groove (7), the horizontal installation error of the pipe module (6) can be infinitely adjusted. The upper functional frame layer includes a set of crossbeams (10) set in the main steel frame (4) for supporting the cable tray module (15), which is detachably fixed to the top surface of the crossbeams (10) by connecting bolts (20); At the center of the bottom left and right sides of the steel bracket module, horizontal sleeve connectors (11) are respectively provided at the positions corresponding to the supporting steel columns (2). Each sleeve connector is fitted onto the supporting steel column (2), and the bottom end of the steel bracket module sits on the adjustable support bracket (3) of the corresponding supporting steel column (2). By adjusting the position of the adjustable support bracket (3) on the supporting steel column (2), the vertical installation error of the steel bracket module can be infinitely adjusted.

2. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 1, characterized in that: All components of the steel support module are made of weathering steel and coated with an anti-corrosion composite paint layer. The main steel frame (4) includes two vertical main frames arranged longitudinally opposite each other. The vertical main frames include an upper chord beam (41), a lower chord beam (42), and a set of short web members (43) that are detachably connected between the two by connecting bolts (20). The upper chord beam (41), the lower chord beam (42), and the short web members (43) are all C-shaped steel with connecting end plates. The openings of the upper chord beam (41) and the lower chord beam (42) face inward, and the openings of the short web members (43) face outward.

3. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 2, characterized in that: The positions of each crossbeam lower beam (5) and each web member short column (43) correspond one-to-one. The two ends of the crossbeam lower beam (5) are detachably connected to the lower chord beams (42) on both sides by connecting bolts (20). The positions of each crossbeam (10) and each web member short column (43) are one-to-one. The two ends of each crossbeam (10) are detachably connected to the corresponding web member short columns (43) on both sides by connecting bolts (20). The steel support module also includes a set of upper beams (12) that correspond one-to-one with the positions of each lower beam (5) and middle beam (10) of each crossarm. The two ends of the lower beam (5) are detachably connected to the upper chord beams (41) on both sides by connecting bolts (20). The lower beam (5), middle beam (10), and upper beam (12) of the crossarm are all C-shaped steels with downward openings and connecting end plates.

4. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 1, characterized in that: The total transverse length of the horizontal adjustment groove (7) is based on the horizontal adjustment of each limiting hoop (8). The limiting hoop (8) is Ω-shaped and its width is greater than the groove width of the horizontal adjustment groove (7). The limiting hoop ear plates (81) on both sides of the limiting hoop (8) have adjustment holes for the adjusting limiting bolts (9) to pass through.

5. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 1, characterized in that: The sleeve connector (11) includes a U-shaped steel hoop (113), and the lower chord beam (42) includes a lower beam back plate (421), a lower beam top plate (422) and a lower beam bottom plate (423). The lower beam back plate (421) has a sleeve hole (424) corresponding to the foot position of the U-shaped steel hoop (113). The foot has a thread (111). The foot passes through the sleeve hole (424) and is fastened to the inner wall of the lower beam back plate (421) by the sleeve nut (112).

6. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 5, characterized in that: The adjustable support bracket (3) includes two Ω-shaped clamps arranged opposite each other. The clamp ear plates (31) on both sides of the clamps are provided with open slots (32). The open slots (32) of the clamp ear plates (31) on the same side are inserted into the horizontal clamp screws (33). The clamp nuts (34) at both ends of the clamp screws (33) are respectively tightened to the corresponding clamp ear plates (31). The lower beam bottom plate (423) is located on the top surface of the inner clamp ear plates (31).

7. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 1, characterized in that: The supporting steel column (2) is a corrosion-resistant steel pipe with a zinc-aluminum alloy coating on its surface. The independent foundation (1) is a cast-in-place foundation in the frozen soil pit. Four column foot bolts (13) are pre-embedded in the independent foundation (1). The column base plate (21) is welded to the bottom of the supporting steel column (2). The column foot bolts (13) are anchored through the four corners of the column base plate (21).

8. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 2, characterized in that: It also includes a packaged pipe module (6), the core pipe (61) of the pipe module (6) is a steel wire mesh skeleton composite high-density polyethylene matrix pipe, and the wall thickness of the core pipe (61) is not less than 50mm.

9. The integrated prefabricated support system for outdoor pipelines in polar environments according to claim 8, characterized in that: The pipeline module (6) also includes a heat-insulating and heat-tracing composite layer wrapped around the core pipe (61). The heat-insulating and heat-tracing composite layer includes an inner polyurethane insulation layer (62) and an outer stainless steel protective layer (63). A heat-tracing cable structure (64) is laid inside the polyurethane insulation layer (62).

10. The integrated prefabricated support system for outdoor pipelines in polar environments according to any one of claims 2, 8, or 9, characterized in that: The length of the steel support module shall not exceed 6m and the weight shall not exceed 450kg. The upper chord beam (41) and lower chord beam (42) of the adjacent steel support modules shall be in contact with each other. The length of the pipe module (6) shall not exceed 6m. The adjacent pipe modules (6) shall be connected by flanges (14) with built-in low-temperature resistant silicone sealant and matching bolts.

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