Anti-seismic fixing device for nuclear power station rack
A technology for fixing devices and nuclear power plants, which is applied to the details of substation/switch layout, nuclear power plants, nuclear power generation, etc. It can solve problems such as failure to meet design requirements, failure to pass qualification tests, and damage to racks, avoiding the use of auxiliary installation tools, Simple and firm structure, reducing the effect of parts
Pending Publication Date: 2022-05-20
JIANGSU NUCLEAR POWER CORP
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Problems solved by technology
[0008] The purpose of this application is to provide an anti-seismic fixing device for the frame of a nuclear power plant, which solves the problem that the frame is easily damaged under vibration or earthquake conditions, cannot pass the relevant identification test, and cannot meet the design requirements
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[0077] A research and development project is to develop a set of seismic monitoring instruments for nuclear power plants. It mainly monitors the impact of earthquakes on reactor buildings and important equipment buildings. When the seismic acceleration threshold is exceeded, a shutdown protection signal is generated. The anti-seismic category of the system is anti-seismic class I .
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The invention belongs to the technical field of nuclear power station earthquake resistance, and particularly relates to an earthquake-resistant fixing device for a nuclear power station rack, a rack pressing plate and a side beam mounting plate are integrally formed by metal plates after cutting, welding is not needed, and the structure is simple and firm; by means of the edge folding structure of the pressing plate metal plate, the structural strength of the pressing plate can be enhanced, the freedom degree of the rack is limited, and the fixing reliability under the vibration or earthquake working condition is guaranteed; the side beam mounting plates form side wings through metal plate folding edges, mounting and fixing of the rack pressing plate are achieved through the mounting holes, and the structural strength of the side beam mounting plates is also enhanced.
Description
technical field [0001] The application belongs to the field of anti-seismic technology of nuclear power plants, and in particular relates to an anti-seismic fixing device for a frame of a nuclear power plant. Background technique [0002] In the field of nuclear power plants, items are divided into three anti-seismic categories: anti-seismic category I, anti-seismic category II and non-nuclear anti-seismic category. Items of different anti-seismic levels should be able to withstand the corresponding seismic load. All safety-level items, including mechanical equipment, electrical equipment and safety-level structures, should be listed as earthquake-resistant category I, and these equipment need to ensure that they can perform safety functions during and / or after an earthquake. [0003] The structural strength and anti-seismic requirements of the electrical cabinet are the key considerations in the design. The mechanical performance and anti-seismic ability of the cabinet are ...
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IPC IPC(8): H02B1/34H02B1/54H05K7/18G21D3/00
CPCH02B1/34H02B1/54H05K7/18G21D3/00Y02E30/00
Inventor 陶明驹马孝龙尹江辉王杨徐东孙勇沈鼎李袁鹏冷凌锋马奔
Owner JIANGSU NUCLEAR POWER CORP