A spiral distribution chemical internal positioning device and positioning method

Abstract

The present invention provides a spirally distributed chemical internal parts positioning device and positioning method, including a core shaft, a support and a positioning ring, the centers of the positioning ring and the support pass through the core shaft, the positioning ring includes a liner ring, a center ring, a support mechanism and a positioning plate, and the support mechanism is installed between the center ring and the liner ring. The beneficial effects of the present invention are: the scattered pipes are fixed on the positioning plate, the center ring of the positioning plate is fixed, the center ring and the liner ring are fixed by the support mechanism, the liner ring passes through the core shaft, and the central axis of the positioning device corresponds to the central axis of the cylinder to complete the positioning of the scattered pipes inside the cylinder. The positioning plate has high angular positioning accuracy relative to the center ring and the liner ring, which can make the tube panel internal parts also have high positioning accuracy relative to the cylinder, thereby ensuring the geometric dimensions of the product and improving the surface quality of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of positioning devices, and in particular to a spirally distributed chemical internal positioning device and a positioning method. Background Art

[0002] At present, chemical containers are designed as cylindrical structures. The cylinder body is composed of two semi-cylinders, and the interior is spliced ​​by pipes. The cylinder diameter and cylinder length are large, and it is difficult to position the internal loose pipes during actual installation. When the workshop manufactures such chemical products, a fixed structure positioning device is usually used, and the conventional device usually uses a connecting plate to weld and fix the product cylinder, which makes it extremely inconvenient to deliver the product to the site for assembly and disassembly. When conventional methods are used to produce chemical containers, the product cylinder and internal parts are prone to overall deformation, and the geometric dimensions of the product cannot be guaranteed, resulting in low production efficiency and not conducive to large-scale use in the workshop. Summary of the Invention

[0003] In order to overcome the problem in the prior art that the positioning device is difficult to disassemble and easily causes deformation of the cylinder, the present invention provides a spirally distributed chemical internal positioning device and a positioning method.

[0004] The present invention discloses a spirally distributed chemical internal parts positioning device, including a core shaft, a support and a positioning ring. The centers of the positioning ring and the support pass through the core shaft. The positioning ring includes a lining ring, a center ring, a support mechanism and a positioning plate. The support mechanism is installed between the center ring and the lining ring. The lining ring passes through the core shaft. The positioning plate is provided with a mounting hole for fixing the positioning plate on the center ring. The positioning plates are distributed in an array with the center ring as the path.

[0005] The cylinder is annular and is provided with a bulk tube. When positioning the bulk tube, the bulk tube is fixed on the positioning plate on the positioning ring through a positioning device composed of a core shaft, a support and a positioning ring. The positioning ring passes through the core shaft and the central axis of the positioning device is aligned with the central axis of the cylinder to complete the positioning of the bulk tube inside the cylinder.

[0006] On this basis, the positioning plate includes an integrally formed first bending portion, a second bending portion and a first step portion, the first bending portion and the second bending portion form an obtuse angle, grooves are provided on the outside of the first bending portion and the second bending portion, loose tubes are placed in the grooves, fixing holes are provided at both ends of the grooves, the grooves are closed by a hemp rope, the hemp rope is passed through the fixing holes for knotting, and the mounting hole is provided on the first step portion.

[0007] Fix the loose tube in the groove and fix the side with hemp rope. After positioning is completed, it can be cut directly to facilitate the disassembly of the positioning device.

[0008] On this basis, a supporting rod is installed on two adjacent positioning plates, one end of the supporting rod is arranged on the first step portion, and the middle passes through the bending portion of the adjacent positioning plates.

[0009] The positions of the two adjacent positioning plates are fixed by the supporting rod, and the positioning device as a whole and the cylinder are positioned.

[0010] On this basis, the positioning plate includes a connecting portion and a second step portion, the mounting hole is opened on the second step portion, a groove is provided on the outside of the connecting portion, the loose tube is placed in the groove, fixing holes are provided at both ends of the groove, the groove is closed by a hemp rope, the hemp rope is passed through the fixing holes for cutting, and a toothed clamp is provided on the inside of the connecting portion.

[0011] In order to achieve the mutual positioning between the positioning plates and according to the J-shape of the header, the state of the positioning plates is adjusted. By clamping some loose pipes in the grooves, closing the ends with hemp ropes, and fixing the other parts by clamping them into the toothed clamps, the adjacent positioning plates are fixed.

[0012] On this basis, a positioning method for a spirally distributed chemical internal positioning device includes the following steps: s1: a core shaft is placed on a support, a liner ring passes through the core shaft, and a support mechanism is provided on the liner ring for supporting the liner ring and the center ring;

[0013] S2: Lift by crane and embed the loose pipe into the positioning plate;

[0014] S3: Install the positioning plate on the center ring to complete the installation of all positioning plates.

[0015] Positioning is achieved by aligning the center axes.

[0016] On this basis, the installation steps of the positioning plate in step S3 are as follows:

[0017] a) Insert the loose tube into the groove of the positioning plate, close the end with a hemp rope, and pass the hemp rope through the fixing hole and roll it to complete the installation of the first positioning plate;

[0018] b) Complete the installation of the positioning plates in the symmetrical direction of the first positioning plate;

[0019] c) Rotate the device 90 degrees and align the two installed positioning plates perpendicularly.

[0020] In order to balance the force, the positioning plates in four directions are fixed and then the remaining positioning plates are rotated and installed to ensure the safety of the device.

[0021] On this basis, another installation step of the positioning plate in step S3 is: a′) sliding the upper bulk tube into the positioning plate, and clamping the lower bulk tube into the tooth clamping plate;

[0022] b′) Rotate the positioning plate in sequence to complete the installation.

[0023] According to the installation method of the product and the positioning plate, since the adjacent positioning plates are fixed to each other to achieve positioning, the remaining positioning plates are installed in sequence.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) In the present invention, the cylinder is annular, and a loose tube is arranged inside the cylinder. The loose tube is fixed on the positioning plate, the center ring of the positioning plate is fixed, the center ring and the liner ring are fixed by a supporting mechanism, the liner ring passes through the core shaft, and the central axis of the positioning device corresponds to the central axis of the cylinder to complete the positioning of the loose tube inside the cylinder. The positioning plate has a high angular positioning accuracy relative to the center ring and the liner ring, which can make the internal parts of the tube panel also have a high positioning accuracy relative to the cylinder, thereby ensuring the geometric dimensions of the product and improving the surface quality of the product.

[0026] (2) In the present invention, a supporting rod is provided when the positioning plates are independent of each other. One end of the positioning plate is against the inner wall of the cylinder, and one end of the supporting rod is provided on the first step portion. The supporting rod passes through the bending portion of the adjacent positioning plates in the middle. The positions of the two adjacent positioning plates are fixed by the supporting rod, and the positioning device as a whole and the cylinder are positioned.

[0027] (3) In order to realize the mutual positioning between the positioning plates and according to the J-shaped header, the state of the positioning plates is adjusted. By clamping some loose pipes in the grooves, closing the ends with hemp ropes, and fixing the other parts by clamping them into the toothed clamps, the adjacent positioning plates are fixed.

[0028] (4) In the present invention, the parts in the positioning ring adopt a design structure that is easy to disassemble. The positioning device is transported to the site together with the product, and the loading and unloading operations are convenient. There is no need to use flame or mechanical cutting equipment on site, which simplifies the on-site operation steps, reduces the product installation cycle, and will not damage the cylinder.

[0029] (5) The present invention has the advantages of simple design structure, low manufacturing cost, and convenient use. It is suitable for chemical products with large diameter cylinders and complex internal parts. The assembly and positioning of this device are accurate and efficient. It has high versatility and practicality, and is easy to put into large-scale use in production workshops. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the cylinder structure;

[0031] Figure 2 It is a schematic diagram of the internal structure of the cylinder;

[0032] Figure 3 1 is a schematic diagram of the top view of the positioning device of the present invention;

[0033] Figure 4 This is a schematic diagram of the main structure of the positioning device of the present invention;

[0034] Figure 5 1 is a schematic diagram of the support structure of the present invention;

[0035] Figure 6 This is a schematic structural diagram of a positioning plate according to a first embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the positioning plate structure of the second embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the installation structure of embodiment 3 of the present invention;

[0038] Figure 9 This is a schematic structural diagram of a positioning ring according to a first embodiment of the present invention;

[0039] Figure 10 This is a schematic diagram of the installation structure of the positioning plate and the diffuser pipe according to the first embodiment of the present invention;

[0040] Figure 11 This is a schematic diagram of the installation structure of the positioning plate and the top support rod according to the first embodiment of the present invention;

[0041] Figure 12 This is a schematic diagram of the positioning ring structure of the second embodiment of the present invention;

[0042] Figure 13 This is a schematic diagram of the installation structure of a single positioning plate and a diffuser pipe according to the second embodiment of the present invention;

[0043] Figure 14 This is a schematic diagram of the installation structure of the positioning plate and the diffuser pipe according to the second embodiment of the present invention.

[0044] In the figure: 0-1, cylinder, 0-2 tube screen, 0-2-3, loose tube, 1, core shaft, 2, support, 2-1, upper support, 2-2 lower support, 3, positioning ring, 3-1, bushing ring, 3-2, center ring, 3-3, support mechanism, 3-4, pin shaft, 3-5 cotter pin, 3-6, positioning plate, 3-6-1, mounting hole, 3-6-2, groove, 3-6-4, hemp rope, 3-6-5, shock absorbing device, 3-6-6, toothed clamp, 3-6-7, first bending part, 3-6-8, second bending part, 3-6-9 first step part, 3-6-10, connecting part, 3-6-11 second step part, 3-7, bolt, 3-8, nut, 3-9, top support rod. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] refer to Figure 1, a chemical container with a cylindrical structure, the cylinder 0-1 is made of pipes, the cylinder 0-1 is composed of two semi-cylinders, the cylinder diameter is set to; Φ1, the Φ1 size range is set to 4 meters; the cylinder length is set to L1, the L1 size range is set to 25 meters, reference Figure 2 In this embodiment, the chemical container internals consist of 14 tube panels 0-2, arranged in a spiral pattern within the cylinder 0-1. J-shaped headers are located at both ends of the tube panels 0-2, and the J-shaped headers are connected and secured by bulkheads 0-2-3.

[0047] Since chemical containers are large in size, they must be stood up during actual use, making it difficult to position the internal bulk pipes. Therefore, the present invention discloses a spirally distributed chemical internal positioning device to achieve positioning and installation of bulk pipes in a horizontal state.

[0048] Example 1

[0049] refer to Figure 3 and Figure 4 The positioning device includes a core shaft 1, a support 2 and a positioning ring 3. The positioning ring 3 passes through the core shaft 1. Figure 5 The support 2 is set to a square shape, and the support 2 is provided with an upper half support 2-1 and a lower half support 2-2, and the upper half support 2-1 and the lower half support 2-2 are connected by bolts.

[0050] refer to Figure 4 As a preferred embodiment of the present invention, in this embodiment, the center of the support 2 passes through the core shaft 1. There are two supports 2 and they are arranged at both ends of the core shaft 1 to support the core shaft 1 and balance the force. According to the length of the cylinder 0-1, in this embodiment, six positioning rings 3 are determined and evenly distributed on the core shaft 1. The positioning ring 3 includes a liner ring 3-1, a center ring 3-2, a support mechanism 3-3 and a positioning plate 3-6. The liner ring 3-1 is sleeved on the core shaft 1. The support mechanism 3-3 is installed between the center ring 3-2 and the liner ring 3-1, and is connected and fixed by a pin 3-4 and a cotter pin 3-5 to support the center ring 3-2 and the liner ring 3-1. Since the cylinder is circular, the support mechanism 3-3 is distributed in a circular array to ensure the overall stability of the positioning device.

[0051] refer to Figure 6 and Figure 7 The positioning plate 3-6 is provided with a mounting hole 3-6-1, and the positioning plate 3-6 is fixed to the center ring 3-2 through the bolt 3-7 and the nut 3-8 through the mounting hole 3-6-1. Since the chemical component is ring-shaped, the positioning plates 3-6 are distributed in an array with the center ring 3-2 as the path.

[0052] refer to Figure 6As a preferred embodiment of the present invention, in this embodiment, the positioning plate 3-6 includes an integrally formed first bend portion 3-6-7, a second bend portion 3-6-8 and a first step portion 3-6-9. The positioning plate 3-6 is bent inward. The positioning plate 3-6 is arranged according to the shape of the header. The first bend portion 3-6-7 and the second bend portion 3-6-8 are bent inward and form an obtuse angle. Since the shape of the header divides the bulk tube 0-2-3 therein into two parts, two grooves 3-6-2 are provided on the outside of the first bend portion 3-6-7 and the second bend portion 3-6-8. The two grooves 3-6-2 Two parts of the loose pipes 0-2-3 are placed in the middle, and two fixing holes 3-6-3 are respectively provided at both ends of the two grooves 3-6-2. The grooves 3-6-2 are closed by hemp ropes 3-6-4, that is, the hemp ropes 3-6-4 are passed through the fixing holes 3-6-3 for knotting to ensure that the loose pipes 0-2-3 will not slide arbitrarily. Since the positioning device needs to be disassembled after installation, the hemp ropes can be cut at any time for easy operation. The mounting hole 3-6-1 is set on the first step 3-6-9. The positioning plate 3-6 is fixed to the center ring 3-2 by bolts 3-7 and nuts 3-8 through the mounting hole 3-6-1.

[0053] During positioning, a supporting rod 3-9 is installed between two adjacent positioning plates 3-6. One end of the supporting rod 3-9 is set on the first step portion 3-6-9, and the middle passes through the bending part of the adjacent positioning plate 3-6. The other end is against the inner wall of the cylinder 0-1. The positions of the two adjacent positioning plates 3-6 are fixed by the supporting rod 3-9, and the positioning device as a whole and the cylinder 0-1 are positioned.

[0054] refer to Figure 6 and Figure 7 , a shock absorbing device 3-6-5 is provided on the positioning plate 3-6, refer to Figure 6 , the shock absorbing device 3-6-5 adopts shock absorbing blocks, refer to Figure 7 A slide groove is provided in the shock absorbing device 3-6-5, a spring is installed in the slide groove, and a pin is installed in the slide groove, so that the shock absorbing block has a rebound function relative to the positioning plate 3-6, which is used to reduce the contact between the cylinder 0-1 and the tube panel 0-2.

[0055] Example 2

[0056] refer to Figure 7, the difference from the first embodiment is that: the positioning plate 3-6 includes an integrally formed connecting portion 3-6-10 and a second step portion 3-6-11, a bending angle is formed between the connecting portion 3-6-10 and the second step portion 3-6-11, one side of the bending direction of the connecting portion 3-6-10 and the second step portion 3-6-11 is the inner side, the inner side of the connecting portion 3-6-10 is a straight line, and the outer side is a broken line. A groove 3-6-2 is provided on the outer side of the connecting portion 3-6-10, and the groove 3-6-2 is provided at the upper end of the broken line. The upper half of the loose tube 0-2-3 is placed in the groove 3-6-2, and fixing holes 3-6-3 are provided at both ends of the groove 3-6-2. The groove 3-6-2 is sealed by a hemp rope 3-6-4. Closed, the hemp rope 3-6-4 passes through the fixing hole 3-6-3 for section rolling, the straight line on the inner side of the connecting part 3-6-10 is parallel to the fold line at the lower end of the outer side of the adjacent positioning plate 3-6, and a toothed clamping plate 3-6-6 is provided on the inner side of the connecting part 3-6-10, so that the lower half of the dispersing tube 0-2-3 is clamped into the toothed clamping plate 3-6-6 to achieve positioning while fixing the positions of the two positioning plates 3-6. A mounting hole 3-6-1 is provided on the second step 3-6-11, and the positioning plate 3-6 is fixed to the center ring 3-2 by means of bolts 3-7 and nuts 3-8 through the mounting hole 3-6-1. Since the adjacent positioning plates 3-6 are previously positioned by the toothed clamping plate 3-6-6, there is no need to install the top support rod 3-9 at this time.

[0057] Example 3

[0058] refer to Figure 8 and Figure 10 The method for positioning a spirally distributed chemical internal component in the first embodiment includes the following steps:

[0059] S1: Place the core shaft 1 on the support 2, support the core shaft 1 through the support 2, select the positioning ring 3 according to the product barrel length and product assembly dimensional accuracy, and determine its installation quantity and placement position;

[0060] S2: The liner ring 3-1 is sleeved on the core shaft 1, and the support mechanism 3-3 is installed between the center ring 3-2 and the liner ring 3-1 to support the center ring 3-2 and the liner ring 3-1. The support mechanism 3-3 is distributed in a circular array;

[0061] S3: Use a crane to lift a single tube panel 0-2. Insert the loose tubes 0-2-3 in the single tube panel 0-2 into the grooves 3-6-2 of the positioning plate 3-6. The ends are sealed with hemp ropes 3-6-4. The hemp ropes 3-6-4 are passed through the fixing holes 3-6-3 and rolled. This completes the installation of the first positioning plate 3-6 and the loose tubes 0-2-3. Screws are passed through the mounting holes 3-6-1 to install the positioning plate 3-6 on the center ring 3-2. Since the positioning plates 3-6 are independent of each other, the positioning plates 3-6 in symmetrical directions are installed in the same manner to balance the forces. The entire device is rotated 90 degrees to complete the installation of the two positioning plates 3-6 in the perpendicular direction. Since the chemical component is annular, the positioning plates 3-6 are arranged in an array with the center ring 3-2 as the path. After the positioning plates 3-6 in four directions are installed, the stability of the device can be guaranteed. The remaining 10 positioning plates 3-6 are installed, thus completing the positioning and installation of the tube panel 0-2 component.

[0062] refer to Figure 9 and Figure 11 A supporting rod 3-9 is installed between two adjacent positioning plates 3-6. One end of the supporting rod 3-9 is set on the first step portion 3-6-9, and the middle passes through the bending part of the adjacent positioning plate 3-6. The other end is against the inner wall of the cylinder 0-1. The position of the two adjacent positioning plates 3-6 is fixed by the supporting rod 3-9, and the positioning device as a whole and the cylinder 0-1 are positioned.

[0063] Example 4

[0064] A method for positioning a spirally distributed chemical internal component in the second embodiment includes the following steps:

[0065] The difference from Example 3 is that:

[0066] refer to Figure 12 and Figure 13 , the crane lifts the single tube panel 0-2, and slides the loose tubes 0-2-3 in the single tube panel 0-2 into the positioning plate 3-6. The upper half of the loose tubes 0-2-3 are embedded in the groove 3-6-2 of the positioning plate 3-6, and the ends are closed by the hemp rope 3-6-4. The hemp rope 3-6-4 passes through the fixing hole 3-6-3 for knotting. Since the loose tubes 0-2-3 in the lower half pass through the toothed clamping plate 3-6-6 and are fixed in the toothed clamping plate 3-6-6, the installation of one positioning plate 3-6 is completed. The straight line on the inner side of the connecting part 3-6-10 is parallel to the broken line on the lower end of the outer side of the adjacent positioning plate 3-6. The loose tubes 0-2-3 in the lower half are fixed between the two adjacent positioning plates 3-6. Therefore, after being lifted and rotated by the crane, each positioning plate 3-6 is installed in turn, and the installation of 14 positioning plates 3-6 is completed, thereby realizing the positioning installation of the tube panel 0-2 assembly.

[0067] After completing the positioning, when disassembling the positioning device, the positioning device can be removed as a whole by cutting the hemp rope without causing damage to the cylinder body.

[0068] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0069] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw", "place" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0070] The foregoing description shows and describes preferred embodiments of the present invention. As previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A spiral distribution chemical internal positioning device, characterized by: The invention comprises a core shaft (1), a support (2) and a positioning ring (3), wherein the centers of the positioning ring (3) and the support (2) pass through the core shaft (1), the positioning ring (3) comprises a liner ring (3-1), a center ring (3-2), a support mechanism (3-3) and a positioning plate (3-6), wherein the support mechanism (3-3) is installed between the center ring (3-2) and the liner ring (3-1), the liner ring (3-1) passes through the core shaft (1), and the positioning plate (3-6) is provided with a mounting hole (3-6-1) for fixing the positioning plate (3-6) on the center ring (3-2), and the positioning plates (3-6) are distributed in an array with the center ring (3-2) as a path; The positioning plate (3-6) includes an integrally formed first bending portion (3-6-7), a second bending portion (3-6-8) and a first step portion (3-6-9), the first bending portion (3-6-7) and the second bending portion (3-6-8) forming an obtuse angle, a groove (3-6-2) is provided on the outside of the first bending portion (3-6-7) and the second bending portion (3-6-8), a bulk tube (0-2-3) is placed in the groove (3-6-2), fixing holes (3-6-3) are provided at both ends of the groove (3-6-2), the groove (3-6-2) is closed by a hemp rope (3-6-4), the hemp rope (3-6-4) passes through the fixing hole (3-6-3) for section rolling, and the mounting hole (3-6-1) is provided on the first step portion (3-6-9).

2. The spiral distribution chemical internals positioning device according to claim 1, characterized in that: A supporting rod (3-9) is installed on two adjacent positioning plates (3-6). One end of the supporting rod (3-9) is arranged on the first step portion (3-6-9) and the middle passes through the bending portion of the adjacent positioning plates (3-6).

3. A spiral distribution chemical internal positioning device, characterized by: The invention comprises a core shaft (1), a support (2) and a positioning ring (3), wherein the centers of the positioning ring (3) and the support (2) pass through the core shaft (1), the positioning ring (3) comprises a liner ring (3-1), a center ring (3-2), a support mechanism (3-3) and a positioning plate (3-6), wherein the support mechanism (3-3) is installed between the center ring (3-2) and the liner ring (3-1), the liner ring (3-1) passes through the core shaft (1), and the positioning plate (3-6) is provided with a mounting hole (3-6-1) for fixing the positioning plate (3-6) on the center ring (3-2), and the positioning plates (3-6) are distributed in an array with the center ring (3-2) as a path; The positioning plate (3-6) includes a connecting portion (3-6-10) and a second step portion (3-6-11), the second step portion (3-6-11) is provided with the mounting hole (3-6-1), a groove (3-6-2) is provided on the outer side of the connecting portion (3-6-10), a bulk tube (0-2-3) is placed in the groove (3-6-2), fixing holes (3-6-3) are provided at both ends of the groove (3-6-2), the groove (3-6-2) is closed by a hemp rope (3-6-4), and the hemp rope (3-6-4) passes through the fixing holes (3-6-3) for section rolling, and a toothed card plate (3-6-6) is provided on the inner side of the connecting portion (3-6-10).

4. A positioning method for a spirally distributed chemical internals positioning device, using the spirally distributed chemical internals positioning device according to claim 1 or 2, characterized in that: The following steps are involved: S1: The core shaft (1) is placed on the support (2), the liner ring (3-1) passes through the core shaft (1), and a support mechanism (3-3) is provided on the liner ring (3-1) for supporting the liner ring (3-1) and the center ring (3-2); S2: Use a crane to lift and embed the bulkhead (0-2-3) into the positioning plate (3-6); S3: Install the positioning plate (3-6) on the center ring (3-2) to complete the installation of all positioning plates (3-6); the installation steps of the positioning plate (3-6) in step S3 are as follows: a) embedding the loose tube (0-2-3) in the groove (3-6-2) of the positioning plate (3-6), closing the end with a hemp rope (3-6-4), and passing the hemp rope (3-6-4) through the fixing hole (3-6-3) for knot rolling, thereby completing the installation of the first positioning plate (0-3); b) Complete the installation of the positioning plates (3-6) in the symmetrical direction of the first positioning plate (0-3); c) Rotate the device 90 degrees to complete the installation of the two positioning plates (3-6) in the vertical direction of the two installed positioning plates (3-6).

5. A positioning method for a spirally distributed chemical internals positioning device, using the spirally distributed chemical internals positioning device according to claim 3, characterized in that: The following steps are involved: S1: The core shaft (1) is placed on the support (2), the liner ring (3-1) passes through the core shaft (1), and a support mechanism (3-3) is provided on the liner ring (3-1) for supporting the liner ring (3-1) and the center ring (3-2); S2: Use a crane to lift and embed the bulkhead (0-2-3) into the positioning plate (3-6); S3: Install the positioning plate (3-6) on the center ring (3-2) to complete the installation of all positioning plates (3-6); another installation step of the positioning plate (3-6) in step S3 is: a′) Slide the upper diffuser tube (0-2-3) into the positioning plate (3-6), and snap the lower diffuser tube (0-2-3) into the toothed clamping plate (3-6-6); b′) Rotate the positioning plates (3-6) in sequence to complete the installation.

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