Anti-seismic structure electrical cabinet of nuclear-grade emergency diesel generating set

Abstract

The invention provides a nuclear-grade emergency diesel generator set anti-seismic structure electrical cabinet, and relates to the field of nuclear power station emergency power supply equipment, and the electrical cabinet comprises a cabinet body, a stabilizer bar, a damping shock absorber, a vertical beam, a cross beam, a rubber damping ring, a mounting plate, and a cabinet door. The stabilizer bar is mounted at the top of the cabinet body; the damping shock absorbers are mounted at the bottom and on the side surfaces of the cabinet body; the vertical beams and the cross beams are installed in the cabinet body. The rubber damping ring is mounted at the bottom of the damping shock absorber; and the mounting plate and the cabinet door are arranged on the cabinet body. According to the technical scheme, the structural stability and the equipment safety of the electrical cabinet in extreme environments such as earthquakes are remarkably improved.

Description

Technical Field

[0001] The present application relates to the field of emergency power supply equipment for nuclear power plants, and in particular to an earthquake-resistant structural electrical cabinet for a nuclear-grade emergency diesel generator set. Background Art

[0002] Nuclear-grade emergency diesel generator sets are crucial for the safe operation of nuclear power plants. Their electrical cabinets, serving as core control units, must maintain normal operation under extreme conditions, such as earthquakes. However, existing electrical cabinet structures have the following shortcomings in terms of earthquake resistance: Rigid connection problem: Traditional electrical cabinets are rigidly connected to the foundation, which can easily lead to structural deformation or damage due to stress concentration during earthquakes.

[0003] Inadequate seismic design: Existing seismic structures mostly use simple shock-absorbing pads or reinforced frames, which cannot effectively cope with high-intensity earthquake impacts.

[0004] Therefore, there is an urgent need for a new type of earthquake-resistant structural electrical cabinet to improve the seismic performance of the nuclear-grade emergency diesel generator set electrical cabinet. Summary of the Invention

[0005] The purpose of the present invention is to provide an earthquake-resistant structural electrical cabinet for a nuclear-grade emergency diesel generator set in order to solve the problem that the existing shock-absorbing electrical cabinet cannot maintain the structural integrity and functional stability of the electrical cabinet in extreme environments such as earthquakes.

[0006] The above-mentioned purpose of this application is achieved through the following technical solutions: The electrical cabinet comprises: a cabinet body, a stabilizer bar, a damping shock absorber, a vertical beam, a horizontal beam, a rubber shock-absorbing ring, a mounting plate, and a cabinet door; The stabilizer bar is installed on the top of the cabinet; Damping shock absorbers are installed on the bottom and sides of the cabinet; The vertical beams and horizontal beams are installed inside the cabinet; The rubber shock-absorbing ring is installed at the bottom of the damping shock absorber; The mounting plate and the cabinet door are arranged on the cabinet body.

[0007] Optionally, the cabinet body adopts a rectangular parallelepiped structure; the rectangular parallelepiped structure is composed of the vertical beams and the horizontal beams, and at least two horizontal beams are arranged on the inner side of the rectangular parallelepiped structure.

[0008] Optionally, the cabinet body, vertical beams and horizontal beams are made of high-strength alloy steel.

[0009] Optionally, the stabilizing rod is fixed to the top wall of the building via a flexible connector; the flexible connector is made of rubber material.

[0010] Optionally, the stabilizer bar includes a lateral stabilizer bar and a longitudinal stabilizer bar.

[0011] Optionally, the damping shock absorber includes: a spring shock absorber and a hydraulic damper.

[0012] Optionally, the damping shock absorber is connected to the rubber shock absorbing ring via an anchor bolt.

[0013] Optionally, the rubber shock-absorbing ring is allowed to be compressed by no more than 5 mm, so as to prevent the cabinet from moving horizontally by no more than 5 mm during an earthquake.

[0014] Optionally, the mounting plate and cabinet door are made of stainless steel.

[0015] The beneficial effects of the technical solution provided by this application are: 1. Efficient shock absorption: Through the combination of spring shock absorbers and hydraulic dampers, it effectively absorbs earthquake energy and reduces the impact on the electrical cabinet.

[0016] 2. Limited displacement design: A rubber shock-absorbing ring is set inside the shock absorber to allow the electrical cabinet to have limited displacement during an earthquake, avoiding stress concentration and structural damage.

[0017] 3. Stable structure: The top stabilizer bar further enhances the anti-overturning ability of the overall structure.

[0018] 4. Wide range of applications: Suitable for places with high safety requirements in nuclear power plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments, in which: Figure 1 This is the main view in the embodiment of the present application; Figure 2 It is a left view in the embodiment of the present application; Figure 3 It is a bottom view of the embodiment of the present application; Figure 4 is a top view of an embodiment of the present application; Figure 5 is a cross-sectional view in an embodiment of the present application; Figure 6 It is an overall schematic diagram of the electrical cabinet in the embodiment of the present application.

[0020] Among them, 1 is the cabinet body, 2 is the stabilizer bar, 3 is the damping shock absorber, 4 is the vertical beam, 5 is the horizontal beam, 6 is the rubber shock-absorbing ring, 7 is the mounting plate, and 8 is the cabinet door. DETAILED DESCRIPTION

[0021] In order to have a clearer understanding of the technical features, purposes and effects of this application, the specific implementation methods of this application are now described in detail with reference to the accompanying drawings.

[0022] An embodiment of the present application provides an earthquake-resistant structural electrical cabinet for a nuclear-grade emergency diesel generator set.

[0023] Please refer to Figure 1 , Figure 1 This is a front view of an earthquake-resistant electrical cabinet for a nuclear-grade emergency diesel generator set according to an embodiment of the present application. The electrical cabinet comprises: a cabinet body 1, a stabilizer bar 2, a damping shock absorber 3, a vertical beam 4, a horizontal beam 5, a rubber shock-absorbing ring 6, a mounting plate 7, and a cabinet door 8. The stabilizing bar 2 is installed on the top of the cabinet 1; The damping shock absorber 3 is installed on the bottom and side of the cabinet 1; The vertical beam 4 and the horizontal beam 5 are installed inside the cabinet 1; The rubber shock-absorbing ring 6 is installed at the bottom of the damping shock absorber 3; The mounting plate 7 and the cabinet door 8 are arranged on the cabinet body 1 .

[0024] In one embodiment of the present application, an electrical cabinet includes: a cabinet body, a cabinet door, vertical beams, horizontal beams, a stabilizer bar, a damping shock absorber, a rubber shock-absorbing ring, and a mounting plate. A reinforcing beam is welded inside the cabinet body, a stabilizer bar is mounted on the top of the cabinet body, a damping shock absorber is mounted on the bottom of the cabinet body, damping shock absorbers are mounted on the sides of the cabinet body, and elastic rubber rings are mounted on the bottom of the shock absorbers. The technical solution of this application helps improve the seismic resistance of the cabinet body.

[0025] In one embodiment of the present application, Figure 1 This is the main view of the electrical cabinet; Figure 2 This is the left side view of the electrical cabinet; Figure 3 It is the top view of the electrical cabinet; Figure 4 This is a top view of the electrical cabinet; Figure 5 It is a cross-sectional view of the electrical cabinet; Figure 6 This is the overall schematic diagram of the electrical cabinet.

[0026] The cabinet body 1 adopts a rectangular parallelepiped structure; the rectangular parallelepiped structure is composed of the vertical beams 4 and the horizontal beams 5, and at least two horizontal beams 5 are provided on the inner side of the rectangular parallelepiped structure.

[0027] The cabinet body 1 , the vertical beams 4 and the horizontal beams 5 are made of high-strength alloy steel.

[0028] The stabilizing rod 2 is fixed to the top wall of the building via a flexible connector; the flexible connector is made of rubber material.

[0029] In one embodiment of the present application, a top stabilizing structure is provided: a stabilizing rod is provided on the top of the electrical cabinet and fixed to the wall of the building via a flexible connector to ensure that the electrical cabinet does not overturn during an earthquake.

[0030] The stabilizer bar 2 includes a transverse stabilizer bar and a longitudinal stabilizer bar.

[0031] The damping shock absorber 3 includes a spring shock absorber and a hydraulic damper.

[0032] In one embodiment of the present application, a damping shock absorber is used to absorb earthquake impact energy and reduce the vibration transmitted to the electrical cabinet, and a rubber shock-absorbing ring is used to cushion the earthquake impact. Spring shock absorbers and hydraulic dampers are evenly distributed between the damping shock absorbers to further absorb vibration.

[0033] The damping shock absorber 3 is connected to the rubber shock absorbing ring 6 via anchor bolts.

[0034] In one embodiment of the application, damping shock absorbers are installed on the four sides of the cabinet and two damping shock absorbers are installed on the bottom of the cabinet. The damping shock absorbers include spring shock absorbers and hydraulic dampers. The bottom damping shock absorbers are equipped with four rubber shock-absorbing rings, which are directly connected to the ground. Spring shock absorbers or hydraulic dampers are installed in the two clamping plates of the bottom damping shock absorbers. The bottom damping shock absorbers and rubber shock-absorbing rings are connected to the ground with anchor bolts.

[0035] The rubber shock-absorbing ring 6 is allowed to be compressed by no more than 5 mm, so as to prevent the cabinet body 1 from moving horizontally by no more than 5 mm during an earthquake.

[0036] The mounting plate 7 and the cabinet door 8 are made of stainless steel.

[0037] The above are merely exemplary embodiments of the present disclosure and are not intended to limit the scope of the present disclosure. In other words, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure.

[0038] This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not described herein. The description and examples are to be considered as exemplary only, and the scope and spirit of the present disclosure are to be defined by the claims.

Claims

1. A nuclear-grade emergency diesel generator set earthquake-resistant structural electrical cabinet, characterized in that: The electrical cabinet comprises: a cabinet body (1), a stabilizing rod (2), a damping shock absorber (3), a vertical beam (4), a horizontal beam (5), a rubber shock absorbing ring (6), a mounting plate (7), and a cabinet door (8); The stabilizing rod (2) is mounted on the top of the cabinet (1); The damping shock absorber (3) is installed on the bottom and side of the cabinet (1); The vertical beam (4) and the horizontal beam (5) are installed inside the cabinet (1); The rubber shock-absorbing ring (6) is installed at the bottom of the damping shock absorber (3); The mounting plate (7) and the cabinet door (8) are arranged on the cabinet body (1).

2. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 1, characterized in that: The cabinet (1) adopts a rectangular parallelepiped structure; the rectangular parallelepiped structure is composed of the vertical beams (4) and the horizontal beams (5), and at least two horizontal beams (5) are provided on the inner side surface of the rectangular parallelepiped structure.

3. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 2, characterized in that: The cabinet body (1), the vertical beams (4) and the horizontal beams (5) are made of high-strength alloy steel.

4. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 1, characterized in that: The stabilizing rod (2) is fixed to the top wall of the building via a flexible connecting piece; the flexible connecting piece is made of rubber material.

5. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 4, characterized in that: The stabilizer bar (2) comprises a transverse stabilizer bar and a longitudinal stabilizer bar.

6. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 1, characterized in that: The damping shock absorber (3) comprises a spring shock absorber and a hydraulic damper.

7. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 1, characterized in that: The damping shock absorber (3) is connected to the rubber shock absorbing ring (6) via anchor bolts.

8. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 1, characterized in that: The rubber shock-absorbing ring (6) is allowed to be compressed by no more than 5 mm, and is used to prevent the cabinet (1) from moving horizontally by no more than 5 mm during an earthquake.

9. The earthquake-resistant structural electrical cabinet of a nuclear-grade emergency diesel generator set according to claim 1, characterized in that: The mounting plate (7) and the cabinet door (8) are made of stainless steel.

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