An ultra-high strength large steel bifurcated pipe installation and reinforcement device

Abstract

The utility model discloses a kind of superhigh high-strength large-scale steel bifurcated pipe mounting reinforcement devices, including base and two mountings symmetrically arranged on the both sides of base, main pipe hoop is erected on base by main pipe support, branch pipe hoop is erected on the top of mounting by branch pipe support, main pipe hoop and two branch pipe hoops are respectively used to clamp and fix the main pipe and two branch pipes of installed bifurcated pipe, anchor assembly is arranged between main pipe hoop, branch pipe hoop and rock wall. The device of the present application locks bifurcated pipe tightly in mounting position as a whole, avoids the problem that hydrogen-induced delayed cracking is easily caused by direct welding on bifurcated pipe wall, improves the installation quality of superhigh high-strength large-scale steel bifurcated pipe under the premise of guaranteeing construction effect and safety.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower technology, specifically to an ultra-high strength large steel branch pipe installation and reinforcement device. Background Technology

[0002] Steel branch pipes are widely used in the field of water conservancy and hydropower, often used for the branching of water intake pressure steel pipes in high-head hydropower stations and in high-lift multi-pump water supply systems. Due to the special structure of steel branch pipes, they are usually installed by welding profiles to the pipe wall to on-site anchor points. However, the outer side of the steel branch pipe wall is generally not designed with stiffening ribs or other structures for support and fixation. Therefore, the support and reinforcement of the branch pipe is usually achieved by welding profiles along the perimeter of the branch pipe wall to the rock wall anchor points on the outer side of the pipe wall.

[0003] However, this reinforcement method causes significant damage to the base material of the pipe wall. During welding, it easily leads to cracks in the base material of the branch pipe wall and peeling of the coating, especially during the welding of ultra-high strength steel (1000MPa grade and above). Factors such as preheating temperature, welding heat input, post-heating, and ambient humidity can easily cause hydrogen-induced delayed cracks in the base material. Furthermore, these cracks are difficult to detect after the branch pipe is backfilled with concrete, posing a safety hazard. During the long-term operation of a high-head power station, these potential cracks can easily lead to tearing of the branch pipe wall, causing permanent functional damage and posing a significant safety threat to the subsequent operation of the power station. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides an ultra-high strength large steel branch pipe installation and reinforcement device.

[0005] An ultra-high strength large steel branch pipe installation and reinforcement device includes a base and two mounting seats symmetrically arranged on both sides of the base. A main pipe clamp is mounted on the base via a main pipe support, and a branch pipe clamp is mounted on the top of the mounting seats via a branch pipe support. The main pipe clamp and the two branch pipe clamps are used to clamp and fix the main pipe and the two branch pipes of the installed branch pipe, respectively. Anchoring components are provided between the main pipe clamp, the branch pipe clamps and the rock wall.

[0006] A further technical solution is that the main pipe clamp and the two branch pipe clamps are respectively designed to correspond to the shape of the main pipe and the two branch pipes of the branch pipe.

[0007] A further technical solution is that both the main pipe clamp and the branch pipe clamp are made of multiple equally divided arc-shaped steel plates spliced ​​together to form a complete circular structure.

[0008] A further technical solution is: the anchoring assembly includes multiple anchoring beams welded and fixed between the main pipe clamp or branch pipe clamp and the rock wall anchor point, with the anchoring beams respectively located in the middle, upper middle and top of the main pipe clamp or branch pipe clamp.

[0009] A further technical solution is: a connecting component is provided between the main pipe clamp and the branch pipe clamp, and a reinforcing component is provided between the two branch pipe clamps.

[0010] A further technical solution is: the connecting component includes multiple connecting beams welded and fixed between the top and middle of the main pipe clamp and the branch pipe clamp; the reinforcing component includes a reinforcing beam welded and fixed between the tops of the two branch pipe clamps.

[0011] A further technical solution is: diagonal bracing assemblies are welded and fixed between the main pipe support and the branch pipe support, and between the two branch pipe supports. The diagonal bracing assemblies include two intersecting diagonal bracing beams.

[0012] A further technical solution is as follows: the base is formed by connecting two horizontal beams and two vertical beams in sequence to form a rectangular frame, and several support beams are welded and fixed between the bottom surfaces of the two horizontal beams at the middle position.

[0013] A further technical solution is to have multiple symmetrically distributed lifting lugs on the base.

[0014] The beneficial effects of this utility model are:

[0015] This application utilizes a base, branch pipe clamps, main pipe clamps, and anchoring components. The main pipe clamps and branch pipe clamps support and fix the main and branch pipes of the branch pipe. The main pipe clamps and branch pipe clamps are connected into a whole by connecting and reinforcing components. The anchoring beams are welded to the anchor points around the rock wall, thereby locking the branch pipe tightly in the installation position. This avoids the problem of hydrogen-induced delayed cracking that can easily occur when directly welding to the branch pipe wall. While ensuring construction effectiveness and safety, this application improves the installation quality of ultra-high strength large steel branch pipes. Attached Figure Description

[0016] Figure 1 This is a front view of the device with the steel branch pipe installed.

[0017] Figure 2 This is a side view of the device with the steel branch pipe installed.

[0018] Figure 3 This is a top view of the device with the steel branch pipe installed.

[0019] Figure 4 This is a structural diagram of the main clamp;

[0020] Figure 5 This is a structural diagram of the branch pipe clamp;

[0021] Figure 6 This is a schematic diagram of the branch pipe installation site.

[0022] In the picture:

[0023] 1. Base, 2. Crossbeam, 3. Longitudinal beam, 4. Support beam, 5. Mounting seat, 6. Main pipe support, 7. Branch pipe support, 8. Main pipe clamp, 9. Branch pipe clamp, 10. Anchor beam, 11. Connecting beam, 12. Reinforcing beam, 13. Diagonal brace assembly, 14. Traveling wheel, 15. Lifting lug, 16. Branch pipe, 17. Main pipe, 18. Branch pipe, 19. Crescent rib, 20. Rock wall, 21. Sky anchor, 22. Unloading winch. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] A high-strength, large-scale steel branch pipe installation reinforcement device, such as Figure 1-5 As shown, it includes a base 1 and two mounting seats 5 symmetrically arranged on the side walls of the base 1. A main pipe clamp 8 is mounted on the base 1 via a main pipe bracket 6. A branch pipe clamp 9 is mounted on the top of the mounting seat 5 via a branch pipe bracket 7. The main pipe clamp 8 and the two branch pipe clamps 9 are used to clamp and fix the main pipe 17 and the two branch pipes 18 of the installed branch pipe 16, respectively. Anchoring components are provided between the main pipe clamp 8, the branch pipe clamp 9 and the rock wall 20.

[0028] The main pipe clamp 8 and the two branch pipe clamps 9 are respectively designed to correspond to the shape of the main pipe 17 and the two branch pipes 18 of the branch pipe 16. The installation axes of the main pipe clamp 8 and the two branch pipe clamps 9 are aligned with the axial directions of the two branch pipes 18 and the main pipe 17 of the steel branch pipe 16. The inner diameters of the main pipe clamp 8 and the two branch pipe clamps 9 are adapted to the outer diameters of the main pipe 17 and the two branch pipes 18, so that the main pipe clamp 8 and the two branch pipe clamps 9 can clamp and install the main pipe 17 and the two branch pipes 18 respectively. The bevel angles of the main pipe clamp 8 and the branch pipe clamps 9 are determined according to the inclination angles of the main pipe 17 and the branch pipes 18, and the spacing between adjacent ends of the two branch pipe clamps 9 can be used to accommodate the crescent ribs 19 of the branch pipe 16.

[0029] Both the main pipe clamp 8 and the branch pipe clamp 9 are formed by splicing together multiple equally divided arc-shaped steel plates to form a complete circular structure. Specifically, each clamp is cut into 3 to 6 equally divided arc-shaped segments, which are welded and fixed from bottom to top during installation.

[0030] A connecting assembly is provided between the main pipe clamp 8 and the branch pipe clamp 9. The connecting assembly includes multiple connecting beams 11 welded and fixed between the top and middle of the main pipe clamp 8 and the branch pipe clamp 9. The connecting beam 11 at the top is installed along the top curved surface of the steel branch pipe 16.

[0031] A reinforcing assembly is provided between the two branch pipe clamps 9. The reinforcing assembly includes a reinforcing beam 12 welded and fixed between the top ends of the branch pipe clamps 9, which improves the stability of the branch pipe clamps 9.

[0032] The anchoring assembly includes multiple anchoring beams 10 welded and fixed between the main pipe clamp 8 or branch pipe clamp 9 and the rock wall anchor point. To improve the stability of the steel branch pipe 16 installation, the anchoring beams 10 are positioned at different heights on the main pipe clamp 8 or branch pipe clamp 9, including in the middle, upper middle, and top of the main pipe clamp 8 or branch pipe clamp 9. The other end of the anchoring beam 10 is welded and fixed to the anchor point on the rock wall 20. The anchoring beam 10 located in the upper middle section can be positioned at 3 / 4 of the height of the circular structure.

[0033] A diagonal bracing group 13 is welded and fixed between the main support 6 and the branch support 7, and between the two branch supports 7. The diagonal bracing group 13 includes two intersecting diagonal bracing beams. The diagonal bracing beams improve the overall stability and load-bearing capacity. Specifically, the diagonal bracing beams are made of steel profiles.

[0034] In one embodiment, an installation beam is welded and fixed between the two crossbeams 2. Three main support brackets 6 are welded and fixed to the top surface of the middle part of the installation beam and the top surfaces of the crossbeams on both sides of the installation beam. The top of the three main support brackets 6 is welded and fixed to the bottom of the main support clamp 8 to further ensure the stability of the main support frame.

[0035] The base 1 is formed by connecting two horizontal beams 2 and two vertical beams 3 in sequence to form a rectangular frame. The horizontal beams 2 and vertical beams 3 are made of steel profiles and are fixed together by welding. Preferably, several support beams 4 are also welded and fixed between the bottom surfaces of the two horizontal beams 2 at the middle position, which further improves the stability of the base 1.

[0036] The base 1 has four evenly distributed wheels 14 installed at its bottom. Specifically, the wheels 14 are detachable heavy-duty industrial casters.

[0037] The base 1 is provided with multiple symmetrically distributed lifting lugs 15, which are connected to traction equipment to drive the entire device to move. Specifically, four lifting lugs 15 are symmetrically arranged on the top and outer wall of the longitudinal beam 3 on one side of the base 1.

[0038] The ultra-high strength large steel branch pipe installation and reinforcement device of this application is used for the transportation and installation of branch pipes, and its construction process is as follows:

[0039] 1. A branch pipe support 7 and a main pipe support 6 are welded and fixed to the two mounting seats 5 and the base 1, respectively. A diagonal brace group 13 is welded and fixed to the main pipe support 6 and the branch pipe support 7. The arc-shaped sections of the main pipe clamp 8 and the branch pipe clamp 9 are installed on the main pipe support 6 and the branch pipe support 7, respectively, and welded firmly to form a bottom bracket for supporting the main pipe 17 and the branch pipe 18.

[0040] 2. A 70t anchor 21 is placed inside the construction adit. A 10t unloading winch 22 is used to hoist the branch pipe from the transport truck onto the base 1 of the reinforcement device. Before hoisting the branch pipe, detachable wheel stops are placed at each traveling wheel and track to fix the position of the traveling wheels. When hoisting the steel branch pipe 16, the position of the branch pipe 16 is adjusted so that its main pipe 17 and branch pipe 18 are placed on the brackets at the top of the main pipe support 6 and branch pipe support 7, respectively. Then, the remaining 2 / 3 arc sections of the main pipe clamp 8 and branch pipe clamp 9 are installed to form a complete circular structure. Connecting beams 11 and reinforcement beams 12 are welded and fixed between the main pipe clamp 8 and the branch pipe clamp 9, and between the two branch pipe clamps 9, to form a whole.

[0041] 3. The reinforcement device and branch pipes are towed to the installation positions of each branch pipe using a 50-type loader. The position of the reinforcement device is adjusted using jacks. After adjustment, it is fixed to the base 1 of the reinforcement device using pre-embedded plates, and the traveling wheels 14 are removed. Finally, the anchoring beams 10 are used to weld the main pipe clamps 8 and branch pipe clamps 9 firmly to the anchor points around the rock wall 20, thereby locking the branch pipes 16 in the installation position.

[0042] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for reinforcing and installing ultra-high strength large steel branch pipes, characterized in that, It includes a base and two mounting seats symmetrically arranged on both sides of the base. A main pipe clamp is mounted on the base via a main pipe bracket, and a branch pipe clamp is mounted on the top of the mounting seat via a branch pipe bracket. The main pipe clamp and the two branch pipe clamps are used to clamp and fix the main pipe and the two branch pipes of the installed branch pipe, respectively. Anchoring components are provided between the main pipe clamp, the branch pipe clamps and the rock wall.

2. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 1, characterized in that, The main pipe clamp and the two branch pipe clamps correspond to the shape settings of the main pipe and the two branch pipes of the branch pipe, respectively.

3. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 1, characterized in that, Both the main pipe clamp and the branch pipe clamp are made of multiple equally divided arc-shaped steel plates spliced ​​together to form a complete circular structure.

4. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 1, characterized in that, The anchoring assembly includes multiple anchoring beams welded and fixed between the main pipe clamp or branch pipe clamp and the rock wall anchor point. The anchoring beams are respectively located in the middle, upper middle and top of the main pipe clamp or branch pipe clamp.

5. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 1, characterized in that, A connecting component is provided between the main pipe clamp and the branch pipe clamp, and a reinforcing component is provided between the two branch pipe clamps.

6. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 5, characterized in that, The connecting assembly includes multiple connecting beams welded and fixed between the top and middle of the main pipe clamp and the branch pipe clamp; the reinforcing assembly includes a reinforcing beam welded and fixed between the tops of the two branch pipe clamps.

7. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 1, characterized in that, Diagonal bracing assemblies are welded and fixed between the main pipe support and the branch pipe support, and between the two branch pipe supports. Each diagonal bracing assembly consists of two intersecting diagonal bracing beams.

8. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 1, characterized in that, The base consists of two horizontal beams and two vertical beams connected in sequence to form a rectangular frame. Several support beams are also welded and fixed between the bottom surfaces of the two horizontal beams at the middle position.

9. The ultra-high strength large steel branch pipe installation and reinforcement device according to claim 1, characterized in that, The base has multiple symmetrically distributed lifting lugs.

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