Protective foundation pit device for rotating equipment

Abstract

The utility model provides a protective foundation pit device for rotating equipment, the protective foundation pit device comprises a protective base body, side steel plates and a top steel plate, the protective base body comprises a mounting base and a protective wall body, the protective wall body is arranged around the edge of the mounting base, and the mounting base is used for mounting the rotating equipment; the side steel plate is embedded in the protective wall body and surrounds the side surface of the rotating equipment; the top steel plate is detachably installed on the protective wall body and located above the rotating equipment. The side steel plates are additionally arranged in the protection wall body, and the top steel plate is additionally arranged above the protection wall body, so that the anti-impact capability of the protection base body is improved, the impact of cracking blocks can be blocked when the flywheel rotor is split, and the protection effect is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of protection of rotating equipment, and in particular, relates to a protective foundation pit device for rotating equipment. Background Art

[0002] Flywheel energy storage is a kind of physical energy storage. The motor drives the rotor to rotate at high speed, converting electrical energy into kinetic energy for storage. If more energy needs to be stored, the mass of the flywheel rotor needs to be increased and the rotor speed needs to be increased. The flywheel rotor is generally made of alloy steel, weighing more than 5 tons (with the maturity of technology, the weight will be further increased), and the speed also reaches nearly 10,000 revolutions per minute. When the rotor rotates at high speed, it is subjected to very large tensile force. Although the safety margin is considered in the design, when there is an extreme situation such as loss of control (such as overspeed, collision disintegration), it may cause the rotor to split and fly out at high speed. In order to avoid causing personal injury, the flywheel is generally installed in a pit, and the pit is made of reinforced concrete. Through the explicit dynamics calculation method and the Johnson-Cook strength and failure parameter model analysis, after the flywheel rotor splits, it will fly out in the horizontal direction at a speed exceeding the speed of sound. Even after being buffered by the rotor shell, the energy can still reach hundreds of megajoules. At the same time, the impact force generated by the splitting of the flywheel rotor will push the motor part of the upper part of the flywheel out in the vertical direction. The traditional reinforced concrete can only play a very limited protective role in the face of such a huge energy impact. Utility Model Content

[0003] The technical problem solved by the present application is: how to provide a foundation pit device that can effectively protect rotating equipment.

[0004] The present application provides a protective foundation pit device for rotating equipment, the protective foundation pit device comprising:

[0005] A protective base, the protective base comprising a mounting base and a protective wall, the protective wall being arranged around the edge of the mounting base, and the mounting base being used to mount a rotating device;

[0006] A side steel plate, which is embedded in the protective wall and surrounds the side of the rotating device;

[0007] A top steel plate is detachably mounted on the protective wall and is located above the rotating device.

[0008] Optionally, the foundation pit protection device also includes a bottom steel plate, which is embedded in the installation base and located below the rotating equipment.

[0009] Optionally, the number of the side steel plates is two, and both layers of the side steel plates are annular steel plates and are spaced apart from each other.

[0010] Optionally, the installation base and the protective wall are an integrally formed reinforced concrete structure, and the side steel plate is fixedly connected to the inner side of the steel bars of the reinforced concrete structure.

[0011] Optionally, the inner side wall of the protective wall is provided with a mounting platform, and the top steel plate is detachably mounted on the mounting platform.

[0012] Optionally, the mounting platform is provided with anchor bolt holes, and the top steel plate is placed above the mounting platform and fixed to the anchor bolt holes by bolts.

[0013] Optionally, the protective base further includes a cover plate, and the cover plate is arranged on the top of the protective wall.

[0014] Optionally, the outer edge portion of the top of the protective wall is recessed to form a circle of mounting grooves, and the edge of the cover plate is provided with a circle of protrusions, and the protrusions are located within the mounting grooves.

[0015] The present application provides a protective foundation pit device for rotating equipment, which has the following technical effects:

[0016] Adding side steel plates inside the protective wall and adding a top steel plate above the protective wall increases the impact resistance of the protective base, which can block the impact of the fragments when the flywheel rotor splits and improve the protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic cross-sectional view of a protective foundation pit device for rotating equipment according to one or more embodiments;

[0018] Figure 2 is a top view of a protective substrate according to one or more embodiments;

[0019] Figure 3 The figure is a schematic diagram of the connection between the top steel plate and the mounting platform according to one or more embodiments.

[0020] The corresponding relationship between the reference numerals and the component names is as follows:

[0021] 10-protective base, 11-installation base, 12-protective wall, 12a-installation groove, 13-installation platform, 14-bolt, 15-gasket, 16-nut, 17-cover plate, 17a-protrusion, 13a-anchor bolt hole, 20-side steel plate, 30-top steel plate, 40-bottom steel plate, 100-rotating equipment. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0023] Before describing the various embodiments of the present application in detail, the technical concept of the present application is briefly described first: the current traditional foundation pit is difficult to withstand the impact force generated by the splitting of the flywheel rotor, and the protective effect is effective. To this end, the present application provides a protective foundation pit device for rotating equipment, which adds side steel plates to the protective wall and adds a top steel plate above the protective wall, thereby increasing the impact resistance of the protective base, blocking the impact of the fragments when the flywheel rotor splits, and improving the protective effect. The specific principles of the protective foundation pit device for rotating equipment of the present application are described below in combination with more embodiments.

[0024] Specifically, Figure 1 , Figure 2 As shown, the first embodiment provides a protective foundation pit device for rotating equipment, the protective foundation pit device includes a protective base 10, a side steel plate 20 and a top steel plate 30, the protective base 10 includes a mounting base 11 and a protective wall 12, the protective wall 12 is arranged around the edge of the mounting base 11, the mounting base 11 is used to install the rotating equipment 100, the side steel plate 20 is embedded in the protective wall 12 and surrounds the side of the rotating equipment 100, the top steel plate 30 is detachably mounted on the protective wall 12 and is located above the rotating equipment 100, the side steel plates 20 and the top steel plate 30 can enhance the protection capability of the rotating equipment 100 from the side and top.

[0025] Exemplarily, the protective wall 12 is an annular wall, for example, the protective wall 12 may include four spliced ​​wall panels, and the side steel plate 20 may be an annular steel plate, whose shape matches the shape of the protective wall 12, for example, the side steel plate 20 may include four spliced ​​steel plates, each of which is embedded in a different wall. For another example, the protective wall 12 may be a cylindrical wall, and the side steel plate 20 may be a cylindrical steel plate. The shapes of the protective wall 12 and the side steel plate 20 may be set according to actual needs. Among them, the height of the side steel plate 20 is slightly higher than the height of the rotor of the rotating device 100.

[0026] Furthermore, the number of the side steel plates 20 is two layers, and both layers of the side steel plates 20 are annular steel plates and are spaced apart from each other. Exemplarily, the mounting base 11 and the protective wall 12 are an integrally formed reinforced concrete structure, and the side steel plates 20 are fixedly connected to the inner side of the steel bars of the reinforced concrete structure. Among them, the reinforced concrete structure can use double-layer steel bars, and each layer of the side steel plates 20 is respectively installed on the inner side of each layer of steel bars. Here, the "inside" refers to the side of the steel bars close to the rotating equipment 100, which can enhance the connection stability between the side steel plates 20 and the protective wall 12 and improve the impact resistance. Exemplarily, the side steel plates 20 and the steel bars can be fixedly connected by welding. After the connection is completed, the concrete is poured integrally, and the side steel plates 20 are buried inside the reinforced concrete structure to prevent the side steel plates 20 from being exposed to the outside and corroded.

[0027] In one or more embodiments, the foundation pit protection device further includes a bottom steel plate 40 , which is embedded in the mounting base 11 and located below the rotating device 100 , and can further enhance the bottom protection capability.

[0028] Furthermore, the inner wall of the protective wall 12 is provided with a mounting platform 13, and the top steel plate 30 is detachably mounted on the mounting platform 13. Exemplarily, the mounting platform 13 can be a concrete structure integrally formed with the protective wall 12, and the mounting platform 13 is in the shape of a long strip. There are two mounting platforms 13, which are respectively arranged on two opposite inner walls of the protective wall 12.

[0029] In one or more embodiments, the mounting platform 13 is provided with an anchor bolt hole 13a, and the top steel plate 30 is placed above the mounting platform 13 and fixed to the anchor bolt hole 13a by bolts 14. Figure 3 As shown, a gasket 15 and a nut 16 are connected below the anchor bolt hole 13a, which can further improve the connection stability between the top steel plate 30 and the mounting platform 13. At the same time, the top steel plate 30 and the mounting platform 13 are detachably connected, and the top steel plate 30 can be disassembled and lifted out when installing or repairing the rotating equipment.

[0030] Furthermore, the protective base 10 further includes a cover plate 17, which is arranged on the top of the protective wall 12. The outer edge of the top of the protective wall 12 is recessed to form a circle of mounting grooves 12a, and the bottom edge of the cover plate 17 is provided with a circle of protrusions 17a, which are located within the mounting grooves 12a. Through the cooperation of the mounting grooves 12a and the protrusions 17a, rainwater can be prevented from entering the interior of the protective base from the contact surface between the cover plate 17 and the protective wall 12.

[0031] The protective pit device for rotating equipment provided in this embodiment adds side steel plates inside the protective wall and adds a top steel plate above the protective wall, thereby increasing the impact resistance of the protective base, blocking the impact of fragments when the flywheel rotor splits, and improving the protective effect.

[0032] The specific implementation methods of the present application are described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that these embodiments can be modified and improved without departing from the principles and spirit of the present application whose scope is defined by the claims and their equivalents. These modifications and improvements should also be within the scope of protection of the present application.

Claims

1. A protective foundation pit device for rotating equipment, characterized in that: The foundation pit protection device comprises: A protective base, the protective base comprising a mounting base and a protective wall, the protective wall being arranged around the edge of the mounting base, and the mounting base being used to mount a rotating device; A side steel plate, which is embedded in the protective wall and surrounds the side of the rotating device; A top steel plate is detachably mounted on the protective wall and is located above the rotating device.

2. The protective foundation pit device for rotating equipment according to claim 1, characterized in that: The foundation pit protection device also includes a bottom steel plate, which is embedded in the installation base and located below the rotating equipment.

3. The protective foundation pit device for rotating equipment according to claim 1, characterized in that: The number of the side steel plates is two, and both layers of the side steel plates are annular steel plates and are spaced apart from each other.

4. The protective foundation pit device for rotating equipment according to claim 2, characterized in that: The installation base and the protective wall are an integrally formed reinforced concrete structure, and the side steel plate is fixedly connected to the inner side of the steel bars of the reinforced concrete structure.

5. The protective foundation pit device for rotating equipment according to claim 1, characterized in that: The inner side wall of the protective wall is provided with a mounting platform, and the top steel plate is detachably mounted on the mounting platform.

6. The protective foundation pit device for rotating equipment according to claim 5, characterized in that: The mounting platform is provided with anchor bolt holes, and the top steel plate is placed above the mounting platform and fixed to the anchor bolt holes by bolts.

7. The protective foundation pit device for rotating equipment according to claim 1, characterized in that: The protective base also includes a cover plate, which is arranged on the top of the protective wall.

8. The protective foundation pit device for rotating equipment according to claim 7, characterized in that: The outer edge portion of the top of the protective wall is recessed to form a circle of mounting grooves, and the edge of the cover plate is provided with a circle of protrusions, and the protrusions are located within the mounting grooves.

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