Protective baffle for flange production for petrochemical use

Abstract

This utility model discloses a protective baffle for flange production in the petrochemical industry, relating to the technical field of flange production equipment in the petrochemical industry. The protective baffle includes a main protective plate with a mounting plate fixed to its bottom, the mounting plate having multiple mounting openings. A supporting plug-in protective plate is connected to the inner ring of the main protective plate, and an upper protective plate is connected to the top of the supporting plug-in protective plate. Connecting rings and connecting protrusions are respectively provided on the sides of the main protective plate. The connecting rings have snap-fit ​​openings that match the connecting protrusions, and a first fixing component is also provided on the connecting rings. A second fixing component is provided on the front of the main protective plate. This utility model achieves height adjustment of the supporting plug-in protective plate through the second fixing component, and enables rapid connection of multiple protective baffles through the connecting rings, connecting protrusions, and the first fixing component. It solves the problems of incomplete functionality and inconvenient connection of existing protective baffles, and has the advantages of convenient adjustment, efficient connection, and comprehensive protection.

Description

Technical Field

[0001] This utility model belongs to the technical field of flange production equipment in the petrochemical industry, and specifically relates to a protective baffle used in the production process of petrochemical flanges. Background Technology

[0002] Flanges are key components for connecting petrochemical pipelines and equipment, and their production involves multiple processes such as cutting, grinding, and welding. During these processes, protective baffles are used to prevent safety hazards caused by flying debris and sparks, and to protect the flange surface from scratches.

[0003] Currently, protective barriers on the market have the following problems: The existing protective baffles are mostly fixed structures, making it impossible to adjust the protection range according to the flange specifications (such as diameter and height). For the production of flanges of different sizes, different specifications of baffles need to be replaced, which increases production costs and operational complexity.

[0004] The connection is inconvenient and the assembly efficiency is low. When it is necessary to expand the protection range and connect multiple baffles, the existing connection structure mostly uses complex buckles or bolt groups, which require repeated alignment during installation, which is time-consuming and affects production efficiency. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a protective baffle for the production of petrochemical flanges, which aims to achieve the effect of flexible adjustment of the protection range and rapid and stable connection of multiple baffles, so as to adapt to the production needs of flanges of different specifications and improve operating efficiency.

[0006] The technical solution adopted by this utility model to solve the above problems is: a protective baffle for the production of petrochemical flanges, including a main protective plate. The main protective plate, as the main protective carrier, is made of high-strength steel plate and has good impact resistance.

[0007] A mounting plate is fixedly connected to the bottom surface of the main protective plate. The mounting plate is perpendicular to the main protective plate and the two are fixed together by welding to ensure connection strength. Multiple mounting openings are evenly distributed along the length of the mounting plate on the upper surface. Users can use bolts to fix the entire protective baffle to the designated position on the production equipment through the mounting openings to achieve stable installation.

[0008] The inner surface of the main protective plate is fitted with a supporting plug-in protective plate. The inner surface of the main protective plate has a limiting opening that matches the size of the supporting plug-in protective plate. The inner wall of the limiting opening has anti-slip textures to increase the friction between the supporting plug-in protective plate and the main protective plate, preventing accidental slippage of the supporting plug-in protective plate during use. The supporting plug-in protective plate can move up and down along the limiting opening, thereby adjusting its length extending beyond the main protective plate.

[0009] An upper protective plate is fixedly connected to the upper surface of the supporting plug-in protective plate. The upper protective plate is perpendicular to the supporting plug-in protective plate and the two are fixedly connected by bolts for easy disassembly and replacement. The cross-sectional dimension of the upper protective plate is larger than the inner ring cross-sectional dimension of the main protective plate, which can cooperate with the main protective plate to form a double-layer protective structure, expanding the protection range. A wear-resistant layer is also fixedly connected to the upper surface of the upper protective plate. The wear-resistant layer is made of high manganese steel. High manganese steel has high wear resistance and toughness, which can extend the service life of the upper protective plate and reduce wear caused by debris impact.

[0010] Connecting rings and connecting protrusions are fixedly connected to the side surface of the main protective plate. The connecting rings and connecting protrusions are symmetrically distributed on the side surface of the main protective plate. The inner surface of the connecting ring has a snap-fit ​​opening that matches the size of the connecting protrusion. When multiple protective plates need to be connected, the connecting protrusion on one main protective plate can be inserted into the snap-fit ​​opening of the connecting ring on another main protective plate to achieve initial positioning.

[0011] A first fixing block is fixedly connected to the front surface of the connecting ring, and the first fixing block is perpendicular to the connecting ring. A first nut is fixedly connected to the side surface of the first fixing block, and a first threaded rod is fixedly connected to the inner ring surface of the first nut. The end of the first threaded rod away from the first nut can pass through the connecting ring and abut against a connecting protrusion inserted into the snap-fit ​​opening. By tightening the first threaded rod, the connecting protrusion can be firmly fixed in the snap-fit ​​opening, achieving a stable connection between the two protective baffles. A knob is fixedly connected to the end of the first threaded rod. The surface of the knob has anti-slip protrusions, making it easy for the user to manually tighten the first threaded rod without the need for tools, thus improving the ease of operation.

[0012] A second fixing block is fixedly connected to the front surface of the main protective plate. The second fixing block is perpendicular to the main protective plate. A second nut is fixedly connected to the side surface of the second fixing block. A second threaded rod is limited and connected to the inner ring surface of the second nut. The end of the second threaded rod away from the second nut abuts against the surface of the supporting plug-in protective plate. By tightening the second threaded rod, the supporting plug-in protective plate can be fixed in its current position to prevent it from moving; by loosening the second threaded rod, the position of the supporting plug-in protective plate can be adjusted. A knob with anti-slip protrusions is also fixedly connected to the end of the second threaded rod for easy operation by the user.

[0013] Implementation principle Height Adjustment Principle: The support plug-in protective plate is slidably connected to the main protective plate through a limiting opening. The anti-slip texture of the limiting opening provides initial friction. When the protective height needs to be adjusted, loosen the second threaded rod to release its lock on the support plug-in protective plate. The support plug-in protective plate can then move up and down along the limiting opening, causing the upper protective plate to move synchronously. After adjusting to the desired height, tighten the second threaded rod so that its end firmly abuts against the support plug-in protective plate. The friction force fixes the support plug-in protective plate in place, thus achieving the adjustment of the protective height.

[0014] Connection principle: The snap-fit ​​openings of the connecting protrusion and the connecting ring are complementary structures, enabling rapid positioning of the two protective baffles. After insertion, tightening the first threaded rod causes its end to press against the connecting protrusion. The pressing force and friction are used to fix the connecting protrusion in the snap-fit ​​opening, preventing loosening and achieving a stable connection of multiple protective baffles.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Convenient adjustment and strong adaptability: Through the sliding fit between the support plug-in protective plate and the main protective plate and the locking function of the second fixing component, the height of the upper protective plate can be flexibly adjusted so that the protection range can adapt to the production needs of flanges with different diameters and heights. There is no need to replace the baffle, which reduces production costs.

[0016] 2. High efficiency and good stability: The cooperation between the connecting protrusion and the snap-fit ​​opening enables quick positioning, and the locking function of the first threaded rod ensures a stable connection, preventing detachment during use. Moreover, no tools are required for operation, which improves assembly efficiency.

[0017] 3. Comprehensive protection and high durability: The main protective plate and the upper protective plate form a double-layer protective structure, which can effectively block debris from flying in different directions; the high manganese steel wear-resistant layer of the upper protective plate and the high-strength steel plate of the main protective plate improve the impact resistance and wear resistance of the baffle and extend its service life.

[0018] 4. Stable installation: Multiple mounting openings on the mounting plate can be adapted to different fixing positions, ensuring that the protective baffle can be firmly installed on the production equipment and avoiding displacement due to vibration during use. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of this utility model; Figure 2 is a top view of the structure of this utility model; Figure 3 is a cross-sectional view of the present invention; Figure 4 is an enlarged structural schematic diagram of the connecting ring part of this utility model; Figure 5 is an enlarged structural schematic diagram of the second fixing component of this utility model.

[0020] In the diagram: 1 Main protective plate, 2 Mounting plate, 3 Mounting opening, 4 Connecting ring, 5 Snap-fit ​​opening, 6 Supporting plug-in protective plate, 7 Upper protective plate, 8 Connecting protrusion, 9 First fixing block, 10 First nut, 11 First threaded rod, 12 Second fixing block, 13 Second nut, 14 Second threaded rod, 15 Limiting opening. Detailed Implementation

[0021] The technical solution of this utility model will be described in more detail below with reference to preferred embodiments. However, these embodiments are merely descriptions of preferred implementations of this utility model and should not be construed as limiting the scope of this utility model in any way.

[0022] As shown in Figures 1 to 5, a protective baffle for petrochemical flange production includes a main protective plate, which is made of Q235 steel plate with a thickness of 5mm and has good strength and toughness.

[0023] A mounting plate is welded to the bottom of the main protective plate. The mounting plate is made of 3mm thick steel plate, and its length is the same as the width of the main protective plate. Four mounting openings are evenly cut along the length of the mounting plate. The diameter of the mounting openings is 10mm. The user can fix the protective baffle to the worktable of the flange lathe by passing M8 bolts through the mounting openings.

[0024] The inner ring of the main protective plate has a limiting opening with a width of 80mm and a height of 200mm. The inner wall of the limiting opening is sandblasted to form an anti-slip texture with a texture depth of 0.5mm. The supporting plug-in protective plate is a steel plate with a thickness of 4mm that matches the limiting opening. It can slide up and down along the limiting opening with a sliding range of 0-150mm.

[0025] The top of the supporting plug-in protective plate is fixed to the upper protective plate by four M6 bolts. The upper protective plate is a square steel plate with a side length of 200mm and a thickness of 3mm, and its cross-sectional dimensions are larger than the inner cross-sectional dimensions of the main protective plate. The upper protective plate has a 2mm thick high-manganese steel wear-resistant layer fixed on its upper surface by arc spraying. The high-manganese steel has a manganese content of 11%-14% and has excellent wear resistance.

[0026] Connecting rings and connecting protrusions are welded to the left and right sides of the main protective plate, respectively. The connecting ring is a circular steel plate with an inner diameter of 50mm, and the connecting protrusion is a cylindrical steel block with a diameter of 49mm. The connecting ring has a snap-fit ​​opening that matches the connecting protrusion, and the depth of the snap-fit ​​opening is 30mm.

[0027] A first fixing block, a rectangular steel block, is welded to the front of the connecting ring. An M10 nut is welded to the first fixing block, and a first threaded rod, 60mm in length, is screwed into the first nut. The end of the threaded rod away from the first nut can pass through the connecting ring and abut against the connecting protrusion. A knob with a diameter of 30mm is welded to the end of the first threaded rod. Eight anti-slip protrusions, each 2mm high, are evenly distributed on the surface of the knob.

[0028] A second fixing block, a rectangular steel block, is welded to the front of the main protective plate. An M8 second nut is welded onto the second fixing block, and a second threaded rod, 50mm in length, is screwed into the second nut. The end of the second threaded rod away from the second nut abuts against the surface of the supporting plug-in protective plate. A knob with anti-slip protrusions is also welded to the end of the second threaded rod, with the same structure as the knob of the first threaded rod.

[0029] When using it, first fix the main protective plate to the worktable of the flange lathe using M8 bolts through the mounting opening on the mounting plate to ensure a firm installation.

[0030] When machining a flange with a diameter of 100mm, the upper protective plate needs to be adjusted to a lower position: loosen the second threaded rod, move the support plug-in protective plate downward along the limiting opening so that the distance between the bottom of the upper protective plate and the top of the main protective plate is 50mm, and then tighten the second threaded rod so that its end tightly abuts against the support plug-in protective plate to complete the height adjustment.

[0031] When it is necessary to expand the protection range and connect two protective baffles: Align the connecting protrusion on the left side of one main protective plate with the snap-fit ​​opening of the connecting ring on the right side of the other main protective plate, insert to a depth of 30mm, and then tighten the first threaded rod so that the end of the first threaded rod presses against the connecting protrusion until the knob can no longer be turned, thus completing the connection of the two baffles.

[0032] During the processing, the debris generated from flange cutting is blocked by the main protective plate and the upper protective plate, and the flying sparks are intercepted by the steel plate to avoid safety hazards; the wear-resistant layer of the upper protective plate effectively resists the impact and wear of the debris, extending its service life.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A protective shield for the production of flanges for petrochemical use, characterized in that: The system includes a main protective plate, to which an mounting plate is fixedly connected at the bottom surface; a supporting plug-in protective plate is fixedly connected to the inner ring surface of the main protective plate; a connecting ring is fixedly connected to the side surface of the main protective plate; a first fixing block is fixedly connected to the front surface of the connecting ring; a first nut is fixedly connected to the side surface of the first fixing block; a first threaded rod is fixedly connected to the inner ring surface of the first nut; a connecting protrusion is fixedly connected to the side surface of the main protective plate; a second fixing block is fixedly connected to the front surface of the main protective plate; and a second nut is fixedly connected to the side surface of the second fixing block.

2. The protective baffle for petrochemical flange production according to claim 1, characterized in that: The upper surface of the mounting plate has a through-hole for mounting, and there are multiple mounting openings that are evenly distributed along the length of the mounting plate.

3. A protective baffle for petrochemical flange production according to claim 1, characterized in that: The inner surface of the connecting ring has a snap-fit ​​opening, and the size of the snap-fit ​​opening and the connecting protrusion are matched. The connecting ring and the connecting protrusion are symmetrically distributed on the side surface of the main protective plate.

4. A protective baffle for petrochemical flange production according to claim 1, characterized in that: The inner ring surface of the second nut is limited by a second threaded rod, and the second threaded rod is connected to the main protective plate through the second nut and the second fixing block. The end of the second threaded rod away from the second nut abuts against the surface of the supporting plug-in protective plate.

5. A protective baffle for petrochemical flange production according to claim 1, characterized in that: The upper surface of the supporting plug-in protective plate is fixedly connected to the upper protective plate, and the upper protective plate is connected to the main protective plate through the supporting plug-in protective plate. The cross-sectional dimension of the upper protective plate is larger than the inner cross-sectional dimension of the main protective plate.

6. A protective baffle for petrochemical flange production according to claim 1, characterized in that: The inner surface of the main protective plate has a limiting opening, and the size of the limiting opening and the supporting plug-in protective plate are matched. The inner wall of the limiting opening is provided with anti-slip texture.

7. A protective baffle for petrochemical flange production according to claim 5, characterized in that: A wear-resistant layer is fixedly connected to the upper surface of the upper protective plate, and the wear-resistant layer is made of high manganese steel.

8. A protective baffle for petrochemical flange production according to claim 1, characterized in that: Both the first and second threaded rods have knobs fixedly connected to their ends, and the surfaces of the knobs are provided with anti-slip protrusions.

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