Steel bridge for petrochemical plant area
By designing an adjustable L-shaped frame and U-shaped frame structure, the problem of low applicability of the existing bridge tray is solved, and the bridge width adjustment and cable safety isolation are achieved, ensuring the heat dissipation and fire resistance of the cable.
Patent Information
- Application Number
- CN202421098353.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing bridge tray is an integrated molded structure with fixed lateral dimensions and low applicability, making it difficult to meet the diverse needs of cable mounts in petrochemical plants.
A steel bridge frame consisting of multiple L-shaped frames and U-shaped frames is designed. The distance adjustment between the frames is achieved through the sliding connection of threaded rods and square bars, and the hollow structure and groove design are used to avoid direct cables and bridge frames. Contact to ensure safety and heat dissipation of the cable.
The width adjustment of the bridge tray and the safe isolation of the cable are achieved, the suitability of the bridge tray and the heat dissipation effect of the cable are improved, and high temperatures are transmitted to the cable during fires.
Smart Images
Figure CN222366027U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel bridge frames, in particular to a steel bridge frame used in a petrochemical plant area. Background Art
[0002] Petrochemical industry is a non-renewable resource and also an important strategic resource. In the process of petrochemical energy construction, it is necessary to lay cables, and cable trays are needed in the process of laying cables.
[0003] The bridge in the prior art is usually an integrally formed structure with a fixed width in the lateral dimension and low applicability.
[0004] Therefore, it is necessary to propose a steel bridge for petrochemical plant to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a steel bridge for a petrochemical plant to solve the problem that the bridge in the prior art is usually an integrally formed structure with a fixed width in the lateral dimension and low applicability.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel bridge for a petrochemical plant area, comprising a first frame, a second frame, a third frame and a fourth frame, the first frame, the second frame, the third frame and the fourth frame are all L-shaped, the first frame, the second frame, the fourth frame and the third frame are butted end to end in sequence to form a bridge shell, the third frame is fixedly connected to a U-shaped frame on one side close to the fourth frame, the U-shaped frame is slidably connected to a square bar inside, the square bar is fixedly connected to the fourth frame, the third frame is penetrated by a threaded rod, the threaded rod is rotatably connected to the third frame, the U-shaped frame is provided with a circular groove for the threaded rod to pass through, the square bar is provided with a threaded hole matching the threaded rod, and the end of the threaded rod is provided with a hexagonal groove.
[0007] Preferably, the U-shaped frames are provided in plurality, and the plurality of U-shaped frames are distributed at equal distances.
[0008] Preferably, sliding grooves are provided on the inner walls on both sides of the U-shaped frame, and sliding bars are slidably connected inside the sliding grooves, and the sliding bars are fixedly connected to the square bars.
[0009] Preferably, a first groove is formed on the upper surface of the U-shaped frame, and a second groove is formed on the upper surface of the square bar, and the first groove cooperates with the second groove to form a placement groove.
[0010] Preferably, a first slot is provided on one side of the first frame body close to the second frame body, a first plug block is slidably connected inside the first slot, and the first plug block is fixedly connected to the second frame body; a second slot is provided on one side of the fourth frame body close to the second frame body, a second plug block is slidably connected inside the second slot, and the second plug block is fixedly connected to the second frame body; a fourth slot is provided on one side of the third frame body close to the fourth frame body, a fourth plug block is slidably connected inside the fourth slot, and the fourth plug block is fixedly connected to the fourth frame body; a third slot is provided on one side of the third frame body close to the first frame body, a third plug block is slidably connected inside the third slot, and the third plug block is fixedly connected to the first frame body.
[0011] Preferably, the first frame and the third frame, and the second frame and the fourth frame are fixedly connected via connecting members.
[0012] Technical effects and advantages of the utility model:
[0013] 1. The utility model provides a first frame, a second frame, a third frame and a fourth frame, and the distance between the first frame and the third frame, and the distance between the third frame and the fourth frame can be adjusted synchronously, thereby improving the applicability of the steel bridge frame;
[0014] 2. By setting the first groove and the second groove, the cable is erected without direct contact with the steel bridge, so as to prevent the bridge from transferring the external high temperature to the cable in the event of a fire; at the same time, the U-shaped frame and the square bars form a hollow structure at the bottom of the steel bridge, which is beneficial to the heat dissipation of the cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a schematic diagram of the steel bridge structure for use in a petrochemical plant.
[0016] Figure 2 This is a schematic diagram of the structure of the third frame and the fourth frame of the utility model.
[0017] Figure 3 It is a schematic diagram of the structure of the first frame and the second frame of the utility model.
[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure in the middle.
[0019] Figure 5 This is a schematic diagram of the U-shaped frame and square bar structure of the utility model.
[0020] In the figure: 1. first frame; 2. second frame; 3. third frame; 4. fourth frame; 5. first slot; 6. first plug-in block; 7. second slot; 8. second plug-in block; 9. third slot; 10. third plug-in block; 11. fourth slot; 12. fourth plug-in block; 13. U-shaped frame; 14. square bar; 15. slide groove; 16. slide bar; 17. first groove; 18. second groove; 19. threaded rod; 20. hexagonal socket; 21. connecting piece. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clarify the technical solutions in the embodiments of the utility model; it is completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] The utility model provides Figure 1 to Figure 5 A steel bridge for a petrochemical plant is shown, comprising a first frame 1, a second frame 2, a third frame 3 and a fourth frame 4. The first frame 1, the second frame 2, the third frame 3 and the fourth frame 4 are all L-shaped. The first frame 1, the second frame 2, the fourth frame 4 and the third frame 3 are connected end to end in sequence to form a bridge shell.
[0023] A first slot 5 is provided on a side of the first frame 1 close to the second frame 2, a first plug block 6 is slidably connected inside the first slot 5, and the first plug block 6 is fixedly connected to the second frame 2. A second slot 7 is provided on a side of the fourth frame 4 close to the second frame 2, a second plug block 8 is slidably connected inside the second slot 7, and the second plug block 8 is fixedly connected to the second frame 2. A fourth slot 11 is provided on a side of the third frame 3 close to the fourth frame 4, a fourth plug block 12 is slidably connected inside the fourth slot 11, and the fourth plug block 12 is fixedly connected to the fourth frame 4. A third slot 9 is provided on a side of the third frame 3 close to the first frame 1, a third plug block 10 is slidably connected inside the third slot 9, and the third plug block 10 is fixedly connected to the first frame 1.
[0024] The third frame 3 and the fourth frame 4 serve as a supporting structure, and the first frame 1 and the second frame 2 serve as a closed structure.
[0025] The first slot 5, the first plug block 6, the fourth slot 11 and the fourth plug block 12 are provided so that the distance between the first frame 1 and the third frame 3, and the distance between the third frame 3 and the fourth frame 4 can be adjusted synchronously, so that the width of the bridge can be easily adjusted during use, and the cable installation operation can be better performed; and the second slot 7, the second plug block 8, the third slot 9 and the third plug block 10 are provided so that the first frame 1, the second frame 2, the third frame 3 and the fourth frame 4 are assembled more stably.
[0026] The first frame 1 and the third frame 3, and the second frame 2 and the fourth frame 4 are fixedly connected by the connecting piece 21, and the connecting piece 21 includes a seven-shaped buckle, a bolt, etc. When in use, the third frame 3 and the fourth frame 4 are assembled first, and then the first frame 1 and the second frame 2 are assembled. After the cables are placed, the closed structure composed of the first frame 1 and the second frame 2 is covered on the supporting structure composed of the third frame 3 and the fourth frame 4, and fixed by the connecting piece 21 (refer to Figure 1 ). The first frame 1, the second frame 2, the third frame 3 and the fourth frame 4 are all made of steel material to form a steel bridge.
[0027] The steel bridge is assembled from a first frame 1, a second frame 2, a third frame 3 and a fourth frame 4. When the steel bridge is disassembled, the occupied space is reduced, which is convenient for storage or transportation.
[0028] In order to adjust the distance between the third frame 3 and the fourth frame 4, and between the first frame 1 and the second frame 2, a U-shaped frame 13 is fixedly connected to the side of the third frame 3 close to the fourth frame 4, and the U-shaped frames 13 are provided in plurality, and the plurality of U-shaped frames 13 are distributed at equal distances. A square bar 14 is slidably connected inside the U-shaped frame 13, and the square bar 14 is fixedly connected to the fourth frame 4. A threaded rod 19 is passed through the third frame 3, and the threaded rod 19 is rotatably connected to the third frame 3. A circular groove for the threaded rod 19 to pass through is provided on the U-shaped frame 13, and a threaded hole matching the threaded rod 19 is provided on the square bar 14.
[0029] During operation, the threaded rod 19 is rotated. Since the square bar 14 is provided with a threaded hole that cooperates with the threaded rod 19, and under the limiting action of the U-shaped frame 13, the square bar 14 slides inside the U-shaped frame 13, thereby synchronously adjusting the distance between the third frame 3 and the fourth frame 4 and the distance between the first frame 1 and the second frame 2, thereby improving the applicability of the steel bridge frame.
[0030] In specific use, when the distance of the steel bridge is short, only one threaded rod 19 can be set on the steel bridge to cooperate with the corresponding square bar 14. The width of the steel bridge can be adjusted by rotating the threaded rod 19, which can be adjusted according to specific usage conditions.
[0031] In addition, to prevent the threaded rod 19 from rotating at will, a positioning mechanism (not shown in the figure) can be set between the threaded rod 19 and the outer wall of the third frame 3, including structures such as a latch, a positioning plate and a socket. Specifically, the positioning plate is fixed on the threaded rod 19, and the socket is opened on the outer wall of the third frame 3, and there are multiple sockets. The latch is slidably set on the positioning plate. When the threaded rod 19 stops rotating, the latch is inserted into the socket at the corresponding position to prevent the threaded rod 19 from rotating at will. The positioning mechanism is an existing common technology and will not be elaborated here.
[0032] An inner hexagonal groove 20 is formed at the end of the threaded rod 19 . When in use, an inner hexagonal wrench can be used to cooperate with the inner hexagonal groove 20 to drive the threaded rod 19 to rotate.
[0033] In order to improve the sliding stability of the square bar 14 inside the U-shaped frame 13 , sliding grooves 15 are provided on the inner walls of both sides of the U-shaped frame 13 , and a sliding bar 16 is slidably connected inside the sliding groove 15 , and the sliding bar 16 is fixedly connected to the square bar 14 .
[0034] Considering that the cable is directly placed at the bottom of the steel bridge, in the event of a fire, the high temperature outside will be directly transmitted to the cable through the steel bridge, damaging the outer insulation layer of the cable and causing a short circuit. Especially in the petrochemical plant area where there are more dangerous goods, a first groove 17 is opened on the upper surface of the U-shaped frame 13, and a second groove 18 is opened on the upper surface of the square bar 14. The first groove 17 and the second groove 18 cooperate to form a placement groove. The cable is placed in the placement groove. The U-shaped frame 13 and the square bar 14 are sprayed with a heat insulation coating, which has a heat insulation effect. The cable is placed in the placement groove and does not contact the first frame 1, the second frame 2, the third frame 3 and the fourth frame 4.
[0035] During operation, by setting the first groove 17 and the second groove 18, the cable is erected without direct contact with the steel bridge, so as to prevent the bridge from transferring the external high temperature to the cable in case of fire; at the same time, the U-shaped frame 13 and the square bar 14 form a hollow structure at the bottom of the steel bridge, which is beneficial to the heat dissipation of the cable.
Claims
1. A steel bridge for a petrochemical plant, comprising a first frame (1), a second frame (2), a third frame (3) and a fourth frame (4), characterized in that: The first frame (1), the second frame (2), the third frame (3) and the fourth frame (4) are all L-shaped. The first frame (1), the second frame (2), the fourth frame (4) and the third frame (3) are connected end to end in sequence to form a bridge frame shell. A U-shaped frame (13) is fixedly connected to a side of the third frame (3) close to the fourth frame (4). A square bar (14) is slidably connected inside the U-shaped frame (13). The square bar (14) is fixedly connected to the fourth frame (4). A threaded rod (19) is passed through the third frame (3). The threaded rod (19) is rotatably connected to the third frame (3). A circular groove for the threaded rod (19) to pass through is provided on the U-shaped frame (13). A threaded hole matching the threaded rod (19) is provided on the square bar (14). An inner hexagonal groove (20) is provided at the end of the threaded rod (19).
2. The steel bridge for petrochemical plant according to claim 1, characterized in that: The U-shaped frames (13) are arranged in plurality, and the plurality of U-shaped frames (13) are distributed at equal distances.
3. The steel bridge for petrochemical plant according to claim 1, characterized in that: Slide grooves (15) are provided on the inner walls of both sides of the U-shaped frame (13), and a slide bar (16) is slidably connected inside the slide groove (15), and the slide bar (16) is fixedly connected to the square bar (14).
4. The steel bridge for petrochemical plant according to claim 1, characterized in that: The upper surface of the U-shaped frame (13) is provided with a first groove (17), and the upper surface of the square bar (14) is provided with a second groove (18), and the first groove (17) and the second groove (18) cooperate to form a placement groove.
5. The steel bridge for petrochemical plant according to claim 4, characterized in that: A first slot (5) is provided on a side of the first frame (1) close to the second frame (2), a first plug-in block (6) is slidably connected inside the first slot (5), and the first plug-in block (6) is fixedly connected to the second frame (2); a second slot (7) is provided on a side of the fourth frame (4) close to the second frame (2), a second plug-in block (8) is slidably connected inside the second slot (7), and the second plug-in block (8) is fixedly connected to the second frame (2); a fourth slot (11) is provided on a side of the third frame (3) close to the fourth frame (4), a fourth plug-in block (12) is slidably connected inside the fourth slot (11), and the fourth plug-in block (12) is fixedly connected to the fourth frame (4); a third slot (9) is provided on a side of the third frame (3) close to the first frame (1), a third plug-in block (10) is slidably connected inside the third slot (9), and the third plug-in block (10) is fixedly connected to the first frame (1).
6. The steel bridge for petrochemical plant according to claim 5, characterized in that: The first frame (1) and the third frame (3), and the second frame (2) and the fourth frame (4) are fixedly connected via a connecting piece (21).