A construction support device for a large-diameter water pipeline crossing an oil pipeline

Abstract

The present invention relates to the technical field of pipeline engineering, and specifically to a construction support device for a large-diameter water pipeline crossing an oil pipeline, comprising: a base ring, an I-beam support arm and an adjusting device, wherein two I-beam support arms are mirror-imaged on both sides of the base ring, the base ring is slidably arranged on the top ends of the two I-beam support arms, the adjusting device is arranged on the I-beam support arm, and the adjusting device comprises: a cable, a swing arm, a cantilever, a push arm and a pressure block, the two cables are mirror-imaged on both sides of the web of the I-beam support arm, the top end of the swing arm is hinged on the base ring, the bottom end of the swing arm is hinged on the I-beam support arm, the top ends of the two cantilevers are hinged on both sides of the bottom of the upper flange of the I-beam support arm, one end of the two push arms is hinged on the swing arm, the other ends of the two push arms are respectively hinged to the bottom ends of the two cantilevers, and two pressure blocks are respectively arranged at the bottom ends of the two cantilevers, which can provide stable supporting force when the pipeline moves, and at the same time ensure that the supporting device has good durability.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline engineering, and in particular to a construction support device for a large-diameter water pipeline crossing an oil pipeline. Background Art

[0002] In order to ensure the stability and durability of the pipeline, the design and application of the support device are of vital importance. The support device not only supports the weight of the pipeline, but also copes with the influence of external loads, thermal expansion and contraction, vibration and other factors on the pipeline. When the water pipeline crosses the oil pipeline, in order to prevent pollution, the water pipeline should be set above the oil pipeline, while ensuring a safe distance. In order to cope with the thermal expansion and contraction of the pipeline, sliding supports are usually used in the existing technical solutions to allow the pipeline to move freely at its support point, thereby coping with the thermal expansion and contraction and other displacement problems caused by temperature changes in the pipeline. However, the lubricating material of the sliding support is usually PTFE and other materials. The strength and rigidity of the lubricating material are usually lower than those of metal, which limits its application under high load and strong vibration conditions. In particular, for large-diameter water pipelines such as large pipelines with a diameter greater than 600 mm, it is difficult to ensure the safety and reliability of the sliding support, which can easily lead to deformation or even damage of the support device, thereby causing a decrease in durability. Summary of the invention

[0003] The purpose of the present invention is to provide a large-diameter water pipeline crossing oil pipeline construction support device, which can provide stable supporting force when the pipeline moves, and at the same time ensure that the support device has good durability.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A large-diameter water pipeline crossing oil pipeline construction support device, comprising: a base ring, and also comprising:

[0005] Two I-beam arms are mirror-distributed on both sides of the base ring, and the base ring is slidably arranged on the top ends of the two I-beam arms;

[0006] An adjusting device is arranged on the I-beam support arm;

[0007] The regulating device comprises:

[0008] Two cables are arranged in mirror image on both sides of the web of the I-beam support arm;

[0009] A swing arm, the top end of which is hinged to the base ring, and the bottom end of which is hinged to the I-beam support arm;

[0010] Two cantilevers, the top ends of the two cantilevers are hinged to the bottom sides of the upper flange of the I-beam support arm;

[0011] Two push arms, one end of the two push arms is hinged to the swing arm, and the other ends of the two push arms are respectively hinged to the bottom ends of the two cantilevers;

[0012] Two pressing blocks are respectively fixedly arranged at the bottom ends of the two cantilevers.

[0013] Preferably, the hinge point of the push arm and the swing arm is located between the top hinge point of the swing arm and the bottom hinge point of the swing arm, the distance between the first hinge point and the second hinge point is greater than the distance between the second hinge point and the third hinge point, the first hinge point is the hinge point at the top of the swing arm, the second hinge point is the hinge point where the push arm and the swing arm are hinged, and the third hinge point is the hinge point at the bottom of the swing arm.

[0014] Preferably, the inclination angle of the two cables is between 30° and 60°.

[0015] Preferably, the end surface of the pressing block pointing toward the cable is an arc-shaped surface.

[0016] Preferably, two lugs are symmetrically arranged on the horizontal outer wall of the base ring along the diameter direction, and the top end of the I-beam support arm is provided with a corresponding groove, and the lug is slidably arranged in the groove.

[0017] Preferably, an inner ring is arranged on the inner wall of the base ring, a plurality of rollers are arranged on the inner wall of the base ring, and a flat groove is opened at a corresponding position of the outer wall of the inner ring.

[0018] The invention proposes a support device for the construction of a large-diameter water pipeline crossing an oil pipeline, which has the beneficial effect that when the pipeline moves a distance exceeding a threshold, the I-beam support arm is offset by force, and the tension of the cable is adjusted by an adjusting device to achieve load distribution and balance, adjust the stability of the structure, and control the deformation degree of the I-beam at the same time, so that the I-beam support arm maintains the expected shape and rigidity when subjected to force, which helps to extend the life of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 Schematic diagram of the base ring of the present invention;

[0021] Figure 3 The adjusting device of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 4 The adjusting device of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 5 It is a schematic diagram of the cushion block of the present invention.

[0024] In the figure: 11, base ring, 12, roller, 13, lug, 21, I-beam support arm, 22, placement groove, 23, groove, 24, slide rod, 25, gasket, 3, adjustment device, 31, cable, 32, swing arm, 33, cantilever, 34, push arm, 35, pressure block, 41, inner ring, 42, flat groove, 5, through hole, 6, connecting beam, 7, cushion block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-5 The present invention provides a technical solution for a large-diameter water pipeline crossing oil pipe construction support device. The detailed connection means are well-known technologies in the field. The following mainly introduces the working principle and process. The specific work is as follows.

[0027] A construction support device for a large-diameter water pipeline crossing an oil pipe comprises: a base ring 11, two I-beam support arms 21 and an adjusting device 3.

[0028] The base ring 11 is composed of two semi-annular structures and adopts a detachable connection to facilitate the installation of the pipeline. The two I-beam arms 21 are mirror-distributed on both sides of the base ring 11. The base ring 11 is slidably set on the top of the two I-beam arms 21. A through hole 5 is opened on the lower flange of the I-beam arm 21 for the use of bolts and other fixings. At the same time, the bottom of the lower flange of the I-beam arm 21 is designed to be an anchoring shape, and is designed to be rough or engraved with protrusions and other structures to increase the bonding force and stability between the two I-beam arms 21 and the cement. The adjusting device 3 is arranged on the I-beam arm 21. The adjusting device 3 can change the tension between the two ends of the upper flange and the two ends of the lower flange of the I-beam arm 21, thereby achieving load balance of the I-beam.

[0029] The adjusting device 3 comprises two cables 31 , a swing arm 32 , two cantilevers 33 , two push arms 34 and two pressure blocks 35 .

[0030] The two cables 31 are mirror-imaged on both sides of the web of the I-beam support arm 21, and the two cables 31 are inclinedly arranged between the two ends of the upper flange of the I-beam support arm 21 and the two ends of the lower flange of the I-beam support arm 21. In the initial state, the two cables 31 are in a pre-tightened state, and the I-beam support arm 21 is in a balanced state. The forces on the two cables 31 and the I-beam support arm 21 are symmetrical and uniform, and the I-beam support arm 21 maintains balance in the horizontal and vertical directions. A placement groove 22 is provided in the inner cavity of the I-beam support arm 21, and the top end of the swing arm 32 is hinged to the base ring 11, and the bottom end of the swing arm 32 is hinged to the I-beam support arm 21. The swing arm 32 is arranged in the placement groove 22 along the web direction of the I-beam support arm 21, and the hinge point between the bottom end of the swing arm 32 and the I-beam support arm 21 is located at the bottom of the placement groove 22, and the swing arm 32 can swing back and forth along the hinge point at its bottom end. The top of the arm 33 is hinged to the bottom two sides of the flange of the I-beam support arm 21, and the bottom ends of the two cantilevers 33 can swing on both sides of the I-beam web. One end of the two push arms 34 is hinged to the swing arm 32, and the other ends of the two push arms 34 are respectively hinged to the bottom ends of the two cantilevers 33. When the swing arm 32 swings left and right, the movement of the two push arms 34 in the horizontal direction will drive the swing of the two cantilevers 33. Two pressure blocks 35 are respectively arranged at the bottom ends of the two cantilevers 33. The two pressure blocks 35 swing with the two swing arms 32, which can generate pressure on the corresponding cables 31, thereby indirectly changing the tension of the cables 31 and keeping the I-beam support arm 21 under balanced force. The two pressure blocks 35 are located on the outside of the two cables 31. When the pressure blocks 35 swing toward the web of the I-beam support arm 21, pressure is generated on the cables 31, thereby achieving the purpose of indirectly changing the tension of the cables 31.

[0031] The hinge point of the push arm 34 and the swing arm 32 is located between the top hinge point of the swing arm 32 and the bottom hinge point of the swing arm 32. The distance between the first hinge point and the second hinge point is greater than the distance between the second hinge point and the third hinge point. The first hinge point is the hinge point at the top of the swing arm 32, the second hinge point is the hinge point where the push arm 34 and the swing arm 32 are hinged, and the third hinge point is the hinge point at the bottom of the swing arm 32. When the swing arm 32 reciprocates at the hinge point at the bottom, in cooperation with the push arm 34, that is, when the base ring 11 moves in the positive direction, the cable 31 located in the reverse direction will contact the corresponding pressure block 35, and the cable 31 will indirectly increase the tension, wherein the top end of the swing arm 32 is connected to the base ring 11, the distance between the first hinge point and the second hinge point is the input force arm L1, and the distance between the second hinge point and the third hinge point is the output force arm L2. In order to achieve a smaller input force and obtain a larger output force, the length of L1 is greater than the length of L2.

[0032] The inclination angle of the two cables 31 is between 30° and 60°. In practical applications, selecting an inclination angle of 45° for the cables 31 can effectively share the load of the I-beam support arm 21 while providing sufficient stability and aesthetics. According to specific engineering requirements, the angle can be appropriately adjusted between 30° and 60°.

[0033] The end face of the pressure block 35 pointing to the cable 31 is an arc-shaped surface, and the pressure block 35 and the bottom end of the cantilever 33 are fixedly connected. The pressure block 35 can adopt a circular structure to ensure that the stress on the cable 31 is evenly distributed on the pressure block 35, reduce local stress concentration, and prevent the cable 31 from breaking or being damaged due to excessive stress at the contact point, which helps to extend the service life of the cable 31. At the same time, compared with the plane contact, the arc-shaped surface can increase the contact area between the pressure block 35 and the cable 31, thereby improving the friction and gripping force, ensuring that the cable 31 is firmly fixed on the pressure block 35, and helping to prevent the cable 31 from sliding or shifting under high load or vibration conditions.

[0034] On the horizontal outer wall of the base ring 11, two lugs 13 are symmetrically arranged along the diameter direction, and a corresponding groove 23 is opened at the top of the I-beam support arm 21. The lug 13 is slidably arranged in the groove 23, and a slide bar 24 along the axial direction of the base ring 11 is arranged in the groove 23. The lug 13 is arranged on the slide bar 24, so that the base ring 11 can move along its own axial direction. Along the axial direction of the base ring 11, the length of the groove 23 is greater than the length of the lug 13. Gaskets 25 are arranged on both sides of the lug 13, including but not limited to rubber materials. The two gaskets 25 have the same thickness. When no external force is applied, the lug 13 is located in the middle position of the groove 23 The lug 13 is hinged to the top of the swing arm 32, and the connection between the swing arm 32 and the lug 13 has a certain displacement to meet the compensation amount generated when the swing arm 32 is deflected. The lug 13 and the I-beam support arm 21 are made of high-strength materials, including but not limited to steel, stainless steel or high-strength alloy, to ensure that they are not deformed or damaged under stress. At the same time, materials with good wear resistance are selected, such as hardened steel or coated with wear-resistant coating to reduce friction and wear, and high-quality lubricating oil or grease is used on the slider to reduce friction and wear and ensure smooth sliding. With the two gaskets 25, the exposure of the slide bar 24 is minimized.

[0035] An inner ring 41 is provided on the inner wall of the base ring 11. A plurality of rollers 12 are provided on the inner wall of the base ring 11. A flat groove 42 is opened at a corresponding position of the outer wall of the inner ring 41. The plurality of rollers 12 are distributed on the inner wall of the base ring 11 along a circular array to ensure that support and rolling functions are provided over the entire circumference of the base ring 11. At least two rollers 12 are arranged along the axial direction of the base ring 11 to ensure support and rolling functions in the longitudinal direction. Along the axial direction of the base ring 11, the length of the flat groove 42 is less than the length of the inner ring 41, so as to limit the relative displacement distance between the inner ring 41 and the base ring 11, and at the same time ensure that the inner ring 41 can only slide along the axial direction of the base ring 11. At the same time, the inner ring 41 is composed of two semi-annular structures, which is convenient for installation on the outer wall of the pipeline.

[0036] A connecting beam 6 is provided between the two I-beam arms 21 to connect the two I-beam arms 21 into a whole, thereby improving the integrity and coordination of the structure, helping to resist the effects of multi-directional forces, and ensuring reliability under different working conditions. At the same time, the bottom end of the connecting beam 6 is an arc-shaped groove for being placed on the outer wall of the oil pipe. A cushion block 7 is provided on the arc inner wall of the connecting beam 6. The cushion block 7 can be replaced according to the intersection angle of the oil pipe and the water pipe. The water pipe is always arranged along the axial direction of the base ring 11. When an intersection angle is generated between the water pipeline and the oil pipe, the shape of the cushion block 7 can be changed to ensure that the oil pipe always maintains a close fit with the connecting beam 6 and has good stability.

[0037] A placement groove 22 is provided in the inner cavity of the I-beam arm 21. In order to improve the strength and stability of the I-beam arm 21 and ensure its performance under load, reinforcing ribs can be added to the I-beam arm 21, which can significantly improve the strength and rigidity of the I-beam arm 21. The ribs are welded between the web and the flange of the I-beam arm 21 to increase the bending and shear resistance. At the same time, the design of the placement groove 22 is optimized. The groove edge with a rounded corner design can reduce stress concentration, avoid the formation and expansion of cracks, maintain the smoothness and consistency of the groove, and ensure uniform stress distribution.

[0038] Under external loads, thermal expansion and contraction, and vibration, the pipeline moves in the direction of its own axis, and the inner ring 41 in the support device will move with the pipeline, cooperating with the rollers on the inner wall of the base ring 11 to achieve the effect of sliding support to cope with the movement of the pipeline. Within the movable range of the inner ring 41, the center of gravity shift caused by the movement of the pipeline and the lateral stress applied to the I-beam arm 21 have little effect on the I-beam arm 21. When the movement distance of the pipeline is greater than the maximum movement distance of the inner ring 41 in the base ring 11, the base ring 11 will move in the same direction. The stress generated at this time and the shift in the center of gravity will affect the I-beam arm 21. At this time, the adjustment device will adjust the cable 31 in the opposite direction of the pipeline movement, so that the I-beam arm 21 is subjected to balanced force and stress concentration is reduced.

[0039] The inner ring 41 is replaceable, and the inner ring 41 with different inner diameters can be changed according to the diameter of the water pipeline to be suitable for the water pipeline with an inner diameter in the range of 600mm-1200mm. At the same time, by replacing the pads 7 of different specifications, the inner diameter of the arc groove at the bottom end of the connecting beam 6 is changed to be suitable for the oil pipe with an outer diameter in the range of 457mm-559mm.

[0040] Working principle:

[0041] First, place two I-beam arms 21 above the oil pipe, and make the arc groove under the connecting beam 6 correspond to the oil pipe. At the same time, a polyurethane pad, a metal liner or a fiber-reinforced plastic pad can be added between the connecting beam 6 and the oil pipe to cope with high temperature, higher hardness or corrosion resistance. The bottom of the two I-beam arms 21 can be fixed by bolts in conjunction with the through holes 5, or fixed on both sides of the oil pipe by concrete pouring, while ensuring that the connecting beam 6 and the oil pipe fit closely; then place the lower half of the base ring 11 between the two I-beam arms 21, and at the same time, the two lugs 13 of the base ring 11 Located in the groove 23, the slide bar 24 is fixed in the groove 23 along the axial direction of the base ring 11, so that the lower half of the base ring 11 can slide, and then the lower half of the inner ring 41 is placed on the lower half of the base ring 11, while ensuring that the flat groove 42 of the lower half of the inner ring 41 corresponds to the position of the roller 12 on the inner wall of the base ring 11, and then the water pipeline is placed in the inner ring 41, and then the upper half of the inner ring 41 is connected and fixed with the lower half, the outer wall of the water pipeline is completely wrapped, and then the upper half of the base ring 11 is fixed on the lower half of the base ring 11 to form a complete annular structure, and the installation is completed;

[0042] During use, when the water pipeline is displaced a small distance and is within the relative displacement threshold range of the inner ring 41 and the base ring 11, the inner ring 41 will slide with the pipeline to generate sliding support, and the stress change caused by the displacement of the center of gravity will have a small impact. At this time, the two cables 31 are still in the initial pre-tensioned state. When the pipeline moves a distance exceeding the threshold, that is, exceeding the range of the relative position distance between the inner ring 41 and the base ring 11, the base ring 11 will be displaced synchronously, the lug 13 slides in the groove 23, and the top of the swing arm 32 will swing to one side with the lug 13. The push arm 34 located in the opposite direction of the moving direction will drive the cantilever 33 to deflect, so that the pressure block 35 abuts against the corresponding cable 31, and the base ring 1 1 moves, the force of the pressing block 35 pressing the cable 31 gradually increases, thereby indirectly increasing the tension of the cable 31. By using two cables 31, the overall stability of the I-beam support arm 21 is improved by increasing the lateral supporting force, and the I-beam support arm 21 is prevented from tilting or deforming when subjected to force. At the same time, the use of the cable 31 can reduce the requirements on the material strength of the bracket itself, reduce the size and weight of the bracket, thereby saving materials and costs. Moreover, by using the adjustment device 3 to change the tension of the cable 31 during use, it can ensure that the bracket remains stable under different load conditions, make the load more uniform, reduce local stress concentration and deformation, and help to extend the service life of the bracket and the inclined cable 31.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-diameter water pipeline crossing oil pipeline construction support device, comprising: The base ring (11) is characterized by comprising: Two I-beam arms (21) are mirror-distributed on both sides of the base ring (11), and the base ring (11) is slidably arranged on the top ends of the two I-beam arms (21); An adjusting device (3) is arranged on the I-beam support arm (21); The regulating device (3) comprises: two cables (31), a swing arm (32), two cantilevers (33), two push arms (34) and two pressure blocks (35); Two cables (31) are arranged in mirror image on both sides of the web of the I-beam support arm (21). The two cables (31) are arranged in an inclined manner between the two ends of the upper flange of the I-beam support arm (21) and the two ends of the lower flange of the I-beam support arm (21). The inner cavity of the I-beam support arm (21) is provided with a placement groove (22). The top end of the swing arm (32) is hinged to the base ring (11), and the bottom end of the swing arm (32) is hinged to the I-beam support arm (21). The swing arm (32) is arranged in the placement groove (22) along the web direction of the I-beam support arm (21). The hinge point between the bottom end of the swing arm (32) and the I-beam support arm (21) is located at the placement groove. The bottom of the slot (22) is provided, the top ends of the two cantilevers (33) are hinged to the bottom sides of the upper flange of the I-beam support arm (21), the bottom ends of the two cantilevers (33) can swing on both sides of the web of the I-beam, one end of the two push arms (34) is hinged to the swing arm (32), the other ends of the two push arms (34) are respectively hinged to the bottom ends of the two cantilevers (33), two pressure blocks (35) are respectively arranged at the bottom ends of the two cantilevers (33), the two pressure blocks (35) are located outside the two cables (31), when the pressure blocks (35) swing toward the web of the I-beam support arm (21), pressure is generated on the cables (31).

2. A large-diameter water pipeline crossing oil pipeline construction support device according to claim 1, characterized in that: The hinge point between the push arm (34) and the swing arm (32) is located between the top hinge point of the swing arm (32) and the bottom hinge point of the swing arm (32), the distance between the first hinge point and the second hinge point is greater than the distance between the second hinge point and the third hinge point, the first hinge point is the hinge point at the top of the swing arm (32), the second hinge point is the hinge point where the push arm (34) and the swing arm (32) are hinged, and the third hinge point is the hinge point at the bottom of the swing arm (32).

3. The large-diameter water pipeline crossing oil pipeline construction support device according to claim 1 is characterized by: The inclination angles of the two cables (31) are between 30° and 60°.

4. The large-diameter water pipeline crossing oil pipeline construction support device according to claim 1 is characterized by: The end surface of the pressing block (35) pointing toward the cable (31) is an arc-shaped surface.

5. The large-diameter water pipeline crossing oil pipeline construction support device according to claim 1 is characterized by: Two lugs (13) are symmetrically arranged on the horizontal outer wall of the base ring (11) along the diameter direction, and a corresponding groove (23) is opened at the top end of the I-beam support arm (21), and the lug (13) is slidably arranged in the groove (23).

6. The construction support device for a large-diameter water pipeline crossing an oil pipeline according to claim 1, characterized in that: The inner wall of the base ring (11) is provided with an inner ring (41), the inner wall of the base ring (11) is provided with a plurality of rollers (12), and a flat groove (42) is provided at a corresponding position of the outer wall of the inner ring (41).

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