Pipe frame correction method

Abstract

The invention discloses a correction method for a pipe frame. The correction method comprises the following steps that S1, a fixing auxiliary support is arranged; s2, the pipe frame is pulled; s3, bracket installation; s4, the telescopic driving piece and the stand column deviation preventing device are installed; s5, the stand columns are cut; s6, reducing the height of the pipe frame; s7, correcting the perpendicularity; and S8, filling and reinforcing are conducted, after the perpendicularity is checked again, the cutting areas on the stand columns are reassembled, welded and reinforced through the cutting area blocks, and pipe frame correction is completed. The pipe support has the advantages that the height of the whole pipe support is reduced to achieve separation of the cross beam and the load, the pipe support can be in a free state after the height of the pipe support is reduced, and then the perpendicularity of the pipe support can be conveniently corrected.

Description

Technical Field

[0001] The invention belongs to a pipe rack correction method, and in particular relates to a correction method for an inclined pipe rack. Background Art

[0002] A pipe support is a structural component used to support overhead pipelines. It can be categorized as a fixed support, a sliding support, a guide support, or a rolling support. Sliding pipe supports allow the pipeline to freely move axially in response to temperature fluctuations. They are primarily used to compensate for stress caused by thermal expansion and contraction, ensuring system stability.

[0003] In traditional construction methods, if a pipe rack's sliding support tilts severely and cannot be corrected by pulling it back directly, all loads attached to the pipe rack's crossbeams must be lifted. If a pipe rack has multiple sets of crossbeams, multiple sets of loads must be lifted simultaneously, which consumes a significant amount of labor, materials, and machinery, and increases the construction time. To address the shortcomings of existing technologies, a pipe rack correction method has been developed that facilitates the separation of the crossbeams from the loads. Summary of the Invention

[0004] The present invention aims to address the shortcomings of the prior art and provide a pipe rack calibration method. The present invention reduces the overall height of the pipe rack and separates multiple sets of beams from the load at one time, thereby completing the pipe rack calibration work.

[0005] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are adopted: A method for calibrating a pipe rack, comprising the following steps: S1: auxiliary bracket, set up fixed auxiliary bracket; S2: Pulling the pipe rack to connect the pipe rack to be calibrated with the auxiliary bracket through a puller; S3: Install the brackets on both sides of the columns of the pipe rack to be corrected; S4: Install the telescopic drive member and the column anti-deviation device. Two telescopic drive members are installed near the column. Each telescopic drive member is connected to a corbel, and the telescopic drive member is in a state of supporting the corbel. The column anti-deviation device is installed on the side and end surface of the column below the corbel. The column anti-deviation device prevents the column from being displaced in the longitudinal and transverse directions with the column foot after being cut off. S5: Cutting the column. The area formed by the column anti-deviation device and the column is set as the cutting area. Then, cutting is performed along the edge of the cutting area to obtain a cutting area block. The cutting area block is removed from the column. At this time, a cutting notch is formed on the column. S6: Lower the height of the pipe rack, control the telescopic drive member to retract downward, and the pipe rack follows the downward movement with the help of the cutting notch and its own gravity, and the top of the pipe rack is separated from the load. At this time, the pipe rack is in a free state; S7: Verticality correction: Use the puller to drag the pipe rack to correct the verticality of the pipe rack; after the verticality correction is completed, use the telescopic drive to lift the pipe rack to its original height; S8: Filling and reinforcement. After the verticality is checked again, the cutting area on the column is reinstalled, welded and reinforced with the cutting area block, and the pipe rack correction is completed.

[0006] Furthermore, in step S2, when there are multiple pipe racks, the pipe racks adjacent to the pipe rack to be corrected are pulled and connected to the auxiliary bracket by a puller, and the connecting rods installed between the adjacent pipe racks are removed.

[0007] Furthermore, in step S3, the corbel is installed close to the inclined portion of the pipe rack column; when the pipe rack column is tilted as a whole, the corbel is installed at a certain height from the column foot.

[0008] Further, in step S4, when the installation height of the corbel exceeds the maximum extension length of the telescopic drive member, the telescopic drive member is connected to the corbel by raising the installation height through the support base.

[0009] Furthermore, in step S4, the column anti-deviation device includes a base rod, an anti-slip rod and a base, the base rod is installed at the column foot, the base is provided with a limiting groove, and is installed on the column close to the corbel, one end of the anti-slip rod is connected to the base rod, and the other end is provided with the limiting groove.

[0010] Furthermore, in step S7, the verticality of the pipe rack columns is calibrated by using a laser plummet or theodolite.

[0011] Furthermore, in step S2, the retractor may be a hand chain hoist.

[0012] Furthermore, in step S2, the retractor is connected to the auxiliary support and the pipe rack through steel wire ropes.

[0013] Furthermore, in step S1 , the auxiliary bracket is installed on the opposite side of the inclination direction of the pipe rack.

[0014] Furthermore, in step S8, a plurality of reinforcing ribs are welded and installed at the reinstallation location.

[0015] The present invention has the following improvements over the prior art: 1. This invention changes the traditional upward lifting method to lowering the height of the pipe rack columns to separate the beams and loads, thus simplifying the construction process.

[0016] 2. The present invention cuts the column feet of the pipe rack and uses auxiliary brackets, pullers, and telescopic drive components for auxiliary support, thereby lowering the overall height of the pipe rack and simultaneously separating multiple groups of crossbeams on the pipe rack from the load. The pipe rack is adjusted using the pullers and telescopic drive components, and the verticality of the pipe rack is monitored using a laser plummet or theodolite, thereby completing the pipe rack calibration.

[0017] 3. The present invention separates the pipe rack crossbeam from the load by lowering the height of the pipe rack as a whole, and has the characteristics of simple operation, low investment and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of an application structure of a pipe rack correction method of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of A; Names and serial numbers of components in the figure: 1- auxiliary bracket, 2- first retractor, 3- first retractor rope, 4- second retractor, 5- second retractor rope, 6- first pipe rack, 7- base, 8- first support seat, 9- first telescopic drive member, 10- first bracket, 11- second bracket, 12- second telescopic drive member, 13- second support seat, 14- cutting area, 15- connecting rod, 16- second pipe rack, 17- third pipe rack, 18- column anti-deviation device, 181- base rod, 182- anti-slip rod, 183- base. DETAILED DESCRIPTION

[0020] In order to enable people skilled in the art to better understand the technical solutions in this application, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0021] Example 1: like Figure 1 、 2 As shown, a method for calibrating a pipe rack includes the following steps: S1: Auxiliary support. Install a fixed auxiliary support on the opposite side of the pipe rack's tilt. The auxiliary support can be a factory column. Of course, if the factory column is not suitable for an auxiliary support, a supplementary support can be constructed. During installation, the auxiliary support is fixed to the ground to secure the auxiliary support.

[0022] S2: Pull the pipe rack, connecting the pipe rack to be corrected to the auxiliary support via a puller. One type of puller can be a chain hoist. A chain hoist uses manual pull of a hand chain to drive a sprocket and gear set, which in turn drives a lifting chain to raise and lower the load. Braking is achieved using a ratchet and pawl mechanism. Its core principle is gear transmission and torque amplification.

[0023] S3: Install the corbels on both sides of the columns of the pipe rack to be corrected.

[0024] S4: Install the telescopic drive components and column anti-slip devices. Two telescopic drive components are installed near the column, each connected to a corresponding corbel, and the telescopic drive components are in a supporting position against the corbel. Below the corbels, column anti-slip devices are installed on the sides and ends of the column to prevent longitudinal and lateral displacement of the column from the column base after severance. The telescopic drive components are jacks, pneumatic cylinders, or hydraulic cylinders. The pistons of jacks, pneumatic cylinders, and hydraulic cylinders all have lowering and lifting functions.

[0025] It should be noted that when using jacks, pneumatic cylinders, and hydraulic cylinders, the speed of piston extension must be adjusted. The speed of piston retraction and extension can be adjusted on-site according to construction site requirements. When using a manual jack, the speed of the cranking handle can be controlled according to construction needs during jacking.

[0026] S5: Cutting the column. The area formed by the column anti-deviation device and the column is set as the cutting area, and then cutting is performed along the edge of the cutting area to obtain a cutting area block, and the cutting area block 14 is taken out from the column. At this time, a cutting notch is formed on the column.

[0027] S6: Lowering the pipe rack height, the telescopic drive member is operated to retract downward. The pipe rack descends with the aid of the cutouts and its own gravity, and the top of the pipe rack is separated from the load. The pipe rack is now in a free state. It is understood that the free state of the pipe rack means that the pipe rack can swing vertically when pulled by the retractor. When the telescopic drive member is lowered or raised, the pipe rack can descend or ascend accordingly.

[0028] S7: Verticality correction: Use the puller to drag the pipe rack and use the laser plummet or theodolite to correct the verticality of the pipe rack columns; after the verticality correction is completed, use the telescopic drive to lift the pipe rack to the original height.

[0029] The laser plumb line is an instrument based on the principle of optical alignment. It achieves precise alignment and positioning of the reference point by aligning the plumb line generated by a visible laser with the sighting axis.

[0030] A theodolite is a precision instrument used to measure horizontal and vertical angles. Its core design is based on the principles of geometric optics and mechanical transmission. Based on this principle, the instrument uses two perpendicular rotating axes (horizontal and vertical) to achieve full-range aiming of the telescope, and incorporates a degree reading system to complete angle measurement.

[0031] Laser plummets and theodolites are used to accurately monitor the verticality of the pulling pipe rack during its swing, and can accurately measure and correct the verticality of the pipe rack.

[0032] S8: Filling and reinforcement. After the verticality is checked again, the cutting area on the column is reinstalled, welded and reinforced with the cutting area block 14. At the reinstallation location, multiple reinforcing ribs are welded and installed to further enhance the bearing capacity of the reinstallation location. The pipe rack correction is completed.

[0033] like Figure 2 As shown, a structure of the column anti-deviation device: the column anti-deviation device includes a base rod 181, an anti-slip rod 182 and a base 183, the base rod 181 is installed at the column foot, and the base 183 is provided with a limit groove, close to the corbel (such as Figure 2 As shown, it can be installed on the column close to the first corbel 10), one end of the anti-slip rod 182 is connected to the base rod 181, and the other end is passed through the limiting groove on the base 183.

[0034] The limit groove restricts the anti-slip rod 182 to remain connected to the base 183, and the base can move relative to the anti-slip rod with the help of the limit groove, which can limit the subsequent cut columns and prevent the columns from being displaced in the longitudinal and transverse directions with the column feet after cutting.

[0035] like Figure 1 、 2 As shown, an application mode of the present invention. The equipment required to implement the present invention includes: an auxiliary bracket 1, a puller, a telescopic drive member and a corbel. The corbel includes a first corbel 10 and a second corbel 11, and the first corbel 10 and the second corbel 11 are respectively installed on both sides of the column of the pipe rack. The telescopic drive member includes a first telescopic drive member 9 and a second telescopic drive member 12. The first telescopic drive member 9 is connected to the first corbel 10 to support the first corbel 10; the second telescopic drive member 12 is connected to the second corbel 11 to support the second corbel 11. The puller includes a first puller 2 and a second puller 4. The first puller 2 is pull-connected to the first pipe rack 6, and the second puller 4 is pull-connected to the second pipe rack 16.

[0036] When the connecting rod 15 between the first and second pipe racks 6 and 16 is removed, the first retractor 2 pulls on the first pipe rack 6 to prevent it from toppling. The second retractor pulls on the second pipe rack 16, providing a pulling force. Furthermore, the column anti-sway device prevents the column from longitudinally and transversely shifting relative to the column base after severance.

[0037] It is understandable that when the column is corrected, with the assistance of the column anti-deviation device, the tilted column can be corrected more quickly.

[0038] It should be noted that each column of the same pipe rack can be equipped with an auxiliary bracket, which is connected to the column via a puller. Corbels are installed on both sides of the column, and each corbel is equipped with a telescopic drive. It is understood that the columns on the same pipe rack can be adjusted simultaneously, for example, by pulling the columns to swing vertically, or by lowering and raising the columns simultaneously.

[0039] The present invention cuts the pipe rack columns to reduce the overall height of the pipe rack, separates multiple groups of beams from the load at one time, and thus completes the pipe rack correction work. It has the characteristics of simple operation, low investment and high efficiency.

[0040] This invention changes the existing method of separating the pipe rack crossbeams and their loads. Instead of the traditional method of lifting the load upward, the crossbeams and their loads are separated by lowering the pipe rack as a whole. This completely overcomes the shortcomings and deficiencies of the existing technology, simplifies the construction process, reduces operational risks, and improves construction efficiency.

[0041] Example 2: Compared with Example 1, the only difference is that in step S2, when there are multiple pipe racks, the pipe racks adjacent to the pipe rack to be corrected are pulled and connected to the auxiliary bracket by a puller, and the connecting rods installed between the adjacent pipe racks are removed.

[0042] like Figure 1 The figure shows a structure of multiple pipe racks. Connecting rods 15 are installed between adjacent first, second, and third pipe racks 17. When the first pipe rack 6 needs to be vertically corrected, the connecting rod 15 between the first and second pipe racks 16 is removed, severing the connection between the adjacent pipe racks. This prevents the connecting rod 15 from affecting the vertical correction of the first pipe rack, thereby facilitating the vertical correction of the remaining pipe racks.

[0043] It should be noted that after the verticality correction of adjacent pipe racks is completed, the connecting rods 15 between the adjacent pipe racks are installed.

[0044] Example 3: Compared with Example 1, the only difference is that: in step S3, the corbel is installed close to the inclined part of the pipe rack column; when the pipe rack column is tilted as a whole, the corbel is installed at a certain height from the column foot.

[0045] When the pipe rack is tilted, the height of the corbels above the column base can be 50-60 cm when installing. For example, 50 mm, 55 mm, or 60 mm are possible. Of course, this is not a limitation. The height of the corbels can be selected based on the overall tilt angle of the pipe rack.

[0046] When installing the corbel near the inclined portion of the pipe rack column, the bend can be cut to facilitate the vertical correction of the pipe rack. It is understood that if the cut bend section cannot be corrected for verticality, a filler block can be made on-site according to the shape of the gap during the subsequent filling and reinforcement process.

[0047] Example 4: Compared with any one of Examples 1-3, the only difference is that in step S4, when the installation height of the corbel exceeds the maximum extension length of the telescopic drive member, the telescopic drive member is connected to the corbel by raising the installation height through the support base.

[0048] The support base includes a first support base 8 and a second support base 13. The first support base 8 and the second support base 13 are mounted on the support surface of the pipe rack column. The first support base 8 can be used to support and mount the first telescopic drive member 9, thereby raising the installation height of the first telescopic drive member 9. The second support base 13 can be used to support and mount the second telescopic drive member 12, thereby raising the installation height of the second telescopic drive member 12.

[0049] Example 5: Compared with any one of Examples 1-4, the only difference is that: in step S2, the retractor is connected to the auxiliary bracket and the pipe rack through steel wire ropes.

[0050] like Figure 1 As shown, the retractor includes a first retractor 2 and a second retractor 4. The first retractor 2 is respectively connected to the auxiliary bracket 1 and the first pipe rack 6 through a first retractor rope 3; the second retractor 4 is respectively connected to the auxiliary bracket 1 and the second pipe rack 16 through a second retractor rope 5.

[0051] The first pulling rope 3 and the second pulling rope 5 can both be steel wire ropes. Steel wire ropes have high tensile strength and load-bearing capacity, can withstand large impact forces, and are suitable for scenes such as hoisting and traction.

[0052] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A method for calibrating a pipe rack, characterized in that: The method comprises the following steps: S1: auxiliary bracket, set up fixed auxiliary bracket; S2: Pulling the pipe rack to connect the pipe rack to be calibrated with the auxiliary bracket through a puller; S3: Install the brackets on both sides of the column of the pipe rack to be corrected; S4: Install the telescopic drive member and the column anti-deviation device. Two telescopic drive members are installed near the column. Each telescopic drive member is connected to a corbel, and the telescopic drive member is in a state of supporting the corbel. The column anti-deviation device is installed on the side and end surface of the column below the corbel. The column anti-deviation device prevents the column from being displaced in the longitudinal and transverse directions with the column foot after being cut off. S5: Cutting the column. The area formed by the column anti-deviation device and the column is set as the cutting area. Then, cutting is performed along the edge of the cutting area to obtain a cutting area block. The cutting area block is removed from the column. At this time, a cutting notch is formed on the column. S6: Lower the height of the pipe rack, control the telescopic drive member to retract downward, and the pipe rack follows the downward movement with the help of the cutting notch and its own gravity, and the top of the pipe rack is separated from the load. At this time, the pipe rack is in a free state; S7: Verticality correction: Use the puller to drag the pipe rack to correct the verticality of the pipe rack; after the verticality correction is completed, use the telescopic drive to lift the pipe rack to its original height; S8: Filling and reinforcement. After the verticality is checked again, the cutting area on the column is reinstalled, welded and reinforced with the cutting area block, and the pipe rack correction is completed.

2. The pipe rack calibration method according to claim 1, characterized in that: In step S2, when there are multiple pipe racks, the pipe racks adjacent to the pipe rack to be corrected are pulled and connected to the auxiliary brackets by a puller, and the connecting rods installed between the adjacent pipe racks are removed.

3. The pipe rack calibration method according to claim 1, characterized in that: In step S3, the corbel is installed close to the inclined portion of the pipe rack column; when the pipe rack column is tilted as a whole, the corbel is installed at a certain height from the column foot.

4. The pipe rack calibration method according to claim 1, characterized in that: In step S4, when the mounting height of the corbel exceeds the maximum extension length of the telescopic drive member, the telescopic drive member is connected to the corbel by raising the mounting height through the support base.

5. The pipe rack calibration method according to claim 1 or 4, characterized in that: In step S4, the column anti-deviation device includes a base rod, an anti-slip rod and a base. The base rod is installed at the column foot. The base is provided with a limiting groove and is installed on the column close to the corbel. One end of the anti-slip rod is connected to the base rod, and the other end is provided with the limiting groove.

6. The pipe rack calibration method according to claim 1, characterized in that: In step S7, the verticality of the pipe rack columns is calibrated using a laser plummet or theodolite.

7. The pipe rack calibration method according to claim 1, characterized in that: In step S2, the retractor may be a hand chain hoist.

8. The pipe rack calibration method according to claim 1 or 7, characterized in that: In step S2, the retractor is connected to the auxiliary support and the pipe rack through steel wire ropes.

9. The pipe rack calibration method according to claim 1, characterized in that: In step S1 , the auxiliary support is installed on the opposite side of the pipe rack's tilting direction.

10. The pipe rack calibration method according to claim 1, characterized in that: In step S8, a plurality of reinforcing ribs are welded and installed at the reinstallation location.

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