High-stability gas turbine power plant cable bridge

Abstract

The utility model relates to the technical field of power plant equipment accessories, in particular to a high-stability gas turbine power plant cable bridge which comprises an outer shell, an upper supporting plate and an upper connecting plate, the upper supporting plate and the upper connecting plate are welded to the upper end of the outer shell, the upper supporting plate is located on the outer side of the upper end of the outer shell, and the upper connecting plate is located on the inner side of the upper end of the outer shell. A connector ceramic strip used for connection is arranged between the inner shell and the upper connecting plate, supporting angle strips used for supporting are arranged at the corners of the lower portion of the outer shell and the lower portion of the inner shell, a heat insulation piece is arranged between the outer shell and the inner shell, and the upper cover comprises a cover plate arranged at the upper end of the bridge body. Meanwhile, the upper heat insulation plate arranged on the lower surface of the cover plate is fixed to the bridge body through the hooks and the hanging grooves, the purpose of heat insulation of the cable bridge is achieved, and therefore the problem that cables stored in the cable bridge are aged in advance due to high temperature in a gas turbine power plant is solved.

Description

Technical Field

[0001] The utility model relates to a cable tray, in particular to a highly stable cable tray for a gas turbine power plant. Background Art

[0002] At present, in various gas turbine power plants, there are often an AC high-voltage power system, a weak-current system, a DC high-voltage power system, and various automation systems at the same time. It is necessary to lay various types of cables such as AC high-voltage cables, DC high-voltage cables, communication cables, and control cables in the weak current at the same time. Different cables need to be routed separately during the design of the wiring. Therefore, cable trays for arranging cable lines are gradually widely used.

[0003] Most of the existing cable trays are made of metal thin-walled plates bent into a metal frame with the same cross-section. As the cable laying extends, the cable trays are continuously butt-connected to extend the cable laying distance. Since there is high temperature in local areas of the gas turbine power plant, the aging rate of the cable in the high-temperature environment is faster than that in the non-high-temperature area, which easily causes the cable tray to be damaged due to high-temperature aging in the high-temperature area of the gas turbine power plant. At the same time, there is a problem of insufficient structural stability in the single-layer cable tray structure. Summary of the Utility Model

[0004] The utility model aims to solve the above defects and provides a highly stable cable tray for a gas turbine power plant.

[0005] To overcome the defects in the background art, the technical solution adopted by the utility model to solve its technical problems is: this highly stable cable tray for a gas turbine power plant includes a cable tray body and an upper cover installed at the upper opening of the cable tray body. The cable tray body includes an outer shell, an upper support plate and an upper connection plate welded to the upper end of the outer shell. The upper support plate is located outside the upper end of the outer shell, and the upper connection plate is located inside the upper end of the outer shell. An inner shell is arranged inside the outer shell. A joint ceramic strip for connection is arranged between the inner shell and the upper connection plate. Support angle strips for support are arranged at the corners of the lower parts of the outer shell and the inner shell. A heat insulation member is arranged between the outer shell and the inner shell. The upper cover includes a cover plate arranged at the upper end of the cable tray body and clamping plates integrally formed at both ends of the cover plate, and the clamping plates are clamped outside the upper support plate. An upper heat insulation plate is arranged on the lower surface of the cover plate. Hanging grooves are opened on the lower surfaces at both ends of the upper heat insulation plate. Hooks are welded to the side edges of the upper connection plate, and the hooks are clamped inside the hanging grooves.

[0006] According to another embodiment of the utility model, it further includes that the heat insulation member includes side heat insulation plates arranged on the sides of the outer shell and the inner shell, and bottom heat insulation plates arranged at the bottoms of the outer shell and the inner shell.

[0007] According to another embodiment of the utility model, both ends of the bottom insulation board and the lower ends of the side insulation boards are further integrally formed with limit plug plates, both sides of the supporting angle strip are provided with limit card slots adapted to the limit card slots, and the limit card slots are installed inside the limit card slots.

[0008] According to another embodiment of the utility model, the hook is further included as a "J"-shaped strip structure.

[0009] According to another embodiment of the utility model, the joint ceramic strip is further provided with a "cross" shaped strip structure.

[0010] The beneficial effects of the utility model are:

[0011] 1. An upper supporting plate and an upper connecting plate are welded on the upper end of the outer shell, and a joint ceramic strip is arranged between the upper connecting plate and the inner shell. Support angle strips are arranged at the corners of the lower parts of the outer shell and the inner shell, so that the lower end of the inner shell is supported by the support angle strip. At the same time, the upper end of the inner shell is connected to the upper connecting plate through the joint ceramic strip, so that the inner shell is fixed inside the outer shell. The upper supporting plate is used to limit the card plates at both ends of the cover plate, so that the upper cover is fixed to the bridge body, which improves the stability of the cable bridge structure. The heat insulation member arranged between the outer shell and the inner shell insulates the bridge body. At the same time, the upper heat insulation plate arranged on the lower surface of the cover plate is fixed to the bridge body through hooks and hanging grooves, so as to achieve the purpose of heat insulation of the cable bridge, thereby solving the problem of premature aging of cables stored inside the cable bridge due to high temperature in the gas turbine power plant.

[0012] 2. A heat insulation member composed of a side heat insulation board and a bottom heat insulation board, wherein the side heat insulation board is located at the sides of the outer shell and the inner shell, and the bottom heat insulation board is located at the bottom of the outer shell and the inner shell, so that the side heat insulation board can insulate the sides of the bridge frame body, and the bottom heat insulation board is used to insulate the bottom of the bridge frame body, and the limiting plug plates integrally formed at the lower ends of the side heat insulation boards and at both ends of the bottom heat insulation board are convenient for the limiting plug plates to be installed in the limiting card grooves opened on both sides of the supporting angle bars, so that the side heat insulation board and the bottom heat insulation board can be connected through the supporting angle bars, so that the side heat insulation board, the bottom heat insulation board and the supporting angle bars can cooperate to insulate the bridge frame body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0015] Figure 2 It is a parts structure diagram of the utility model;

[0016] Figure 3 forFigure 1 The enlarged structural diagram at position A in the [device name];

[0017] Figure 4 is Figure 2 the enlarged structural diagram at position B in the [device name].

[0018] Wherein: 1. Bridge body; 11. Outer shell; 12. Inner shell; 13. Upper support plate; 14. Upper connection plate; 15. Joint ceramic strip; 16. Side heat insulation plate; 17. Bottom heat insulation plate; 18. Support angle bar; 19. Limit insertion plate; 20. Limit card slot; 2. Upper cover; 21. Cover plate; 22. Card plate; 3. Upper heat insulation plate; 4. Hook; 5. Hanging slot. Specific implementation manners

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. For the embodiments in the basic utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1-4 shown in the figure, the figure includes a bridge body 1 and an upper cover 2 installed at the upper opening of the bridge body 1. The bridge body 1 includes an outer shell 11, and an upper support plate 13 and an upper connection plate 14 welded to the upper end of the outer shell 11. The upper support plate 13 is located outside the upper end of the outer shell 11, and the upper connection plate 14 is located inside the upper end of the outer shell 11. An inner shell 12 is provided inside the outer shell 11. A joint ceramic strip 15 for connection is provided between the inner shell 12 and the upper connection plate 14. Support angle bars 18 for support are provided at the lower corners of the outer shell 11 and the inner shell 12. A heat insulation member is provided between the outer shell 11 and the inner shell 12. The upper cover 2 includes a cover plate 21 provided at the upper end of the bridge body 1 and card plates 22 integrally formed at both ends of the cover plate 21. The card plates 22 are clamped outside the upper support plate 13. An upper heat insulation plate 3 is provided on the lower surface of the cover plate 21. Hanging slots 5 are opened on the lower surfaces at both ends of the upper heat insulation plate 3. Hooks 4 are welded to the side of the upper connection plate 14, and the hooks 4 are clamped inside the hanging slots 5.

[0021] Through the upper support plate 13 and upper connection plate 14 welded to the upper end of the outer housing 11, and at the same time, a joint ceramic strip 15 is arranged between the upper connection plate 14 and the inner housing 12, and support angle strips 18 are arranged at the corners of the lower parts of the outer housing 11 and the inner housing 12. Furthermore, it is convenient for the lower end of the inner housing 12 to be supported by the support angle strips 18, and at the same time, the upper end of the inner housing 12 is connected to the upper connection plate 14 through the joint ceramic strip 15, so that the inner housing 12 is fixed inside the outer housing 11. The upper support plate 13 is used to limit the clamping plates 22 at both ends of the cover plate 21, so that the upper cover 2 is fixed to the cable tray body 1, improving the stability of the cable tray structure. An insulating member is arranged between the outer housing 11 and the inner housing 12, and then the insulating member insulates the cable tray body 1. At the same time, the upper insulating plate 3 arranged on the lower surface of the cover plate 21 is fixed to the cable tray body 1 through the hooks 4 and hanging grooves 5, achieving the purpose of insulating the cable tray, thus solving the problem that the cables stored inside the cable tray are prematurely aged due to high temperature in the gas turbine power plant.

[0022] Specifically, the insulating member includes side insulating plates 16 arranged on the sides of the outer housing 11 and the inner housing 12, and bottom insulating plates 17 arranged at the bottoms of the outer housing 11 and the inner housing 12. Limiting insertion plates 19 are integrally formed at both ends of the bottom insulating plates 17 and the lower ends of the side insulating plates 16. Limiting card slots 20 adapted to the limiting insertion plates 19 are opened on both sides of the support angle strips 18, and the limiting insertion plates 19 are installed inside the limiting card slots 20.

[0023] In this embodiment, through the insulating member composed of the side insulating plates 16 and the bottom insulating plates 17, and at the same time, the side insulating plates 16 are located on the sides of the outer housing 11 and the inner housing 12, while the bottom insulating plates 17 are located at the bottoms of the outer housing 11 and the inner housing 12. Furthermore, it is convenient for the side insulating plates 16 to insulate the sides of the cable tray body 1, and the bottom insulating plates 17 are used to insulate the bottom of the cable tray body 1. The limiting insertion plates 19 integrally formed at the lower ends of the side insulating plates 16 and both ends of the bottom insulating plates 17 facilitate the installation of the limiting insertion plates 19 inside the limiting card slots 20 opened on both sides of the support angle strips 18. Furthermore, it is convenient for the side insulating plates 16 and the bottom insulating plates 17 to be connected through the support angle strips 18, and it is convenient for the side insulating plates 16, the bottom insulating plates 17 and the support angle strips 18 to cooperate to insulate the cable tray body 1.

[0024] Specifically, the hook 4 is a strip-shaped structure in the shape of a "J".

[0025] In this embodiment, it is convenient for the hook 4, which is a strip-shaped structure in the shape of a "J", to be clamped inside the hanging groove 5.

[0026] Specifically, the joint ceramic strip 15 is a strip-shaped structure in the shape of a "cross".

[0027] In this embodiment, the joint ceramic strip 15, which is a strip-shaped structure in the shape of a "cross", facilitates the connection between the inner housing 12 and the upper connection plate 14.

[0028] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A high-stability gas turbine power plant cable tray, characterized by: The invention comprises a bridge frame body (1), and an upper cover (2) installed at the upper opening of the bridge frame body (1), the bridge frame body (1) comprising an outer shell (11), and an upper support plate (13) and an upper connecting plate (14) welded to the upper end of the outer shell (11), the upper support plate (13) being located on the outer side of the upper end of the outer shell (11), the upper connecting plate (14) being located on the inner side of the upper end of the outer shell (11), an inner shell (12) being arranged inside the outer shell (11), a joint ceramic strip (15) for connection being arranged between the inner shell (12) and the upper connecting plate (14), the outer shell (11) and the inner shell (12) being connected to each other. ) is provided with a supporting angle bar (18) at a corner of the lower part thereof, a heat insulating member is provided between the outer shell (11) and the inner shell (12), the upper cover (2) comprises a cover plate (21) provided at the upper end of the bridge frame body (1), and a clamping plate (22) integrally formed at both ends of the cover plate (21), and the clamping plate (22) is clamped on the outside of the upper support plate (13), an upper heat insulating plate (3) is provided on the lower surface of the cover plate (21), and hanging grooves (5) are provided on the lower surfaces of both ends of the upper heat insulating plate (3), and a hook (4) is welded to the side of the upper connecting plate (14), and the hook (4) is clamped in the inside of the hanging groove (5).

2. The high-stability gas turbine power plant cable tray according to claim 1, characterized in that: The hook (4) is a "J"-shaped strip structure.

3. The high-stability gas turbine power plant cable tray according to claim 1, characterized in that: The joint ceramic strip (15) is a cross-shaped strip structure.

4. The high-stability gas turbine power plant cable tray according to claim 1, characterized in that: The heat insulating member comprises side heat insulating plates (16) arranged on the sides of the outer shell (11) and the inner shell (12), and bottom heat insulating plates (17) arranged on the bottoms of the outer shell (11) and the inner shell (12).

5. The high-stability gas turbine power plant cable tray according to claim 4, characterized in that: Both ends of the bottom heat insulation board (17) and the lower ends of the side heat insulation boards (16) are integrally formed with limit plug plates (19), and both sides of the support angle bar (18) are provided with limit slots (20) adapted to the limit plug plates (19), and the limit plug plates (19) are installed inside the limit slots (20).

Images