An equipment gate head
A technology of head and gate, which is applied in the field of equipment gates in large nuclear power plants, to achieve the effects of ensuring seismic stability, saving space occupied by equipment, and reducing shaking
Active Publication Date: 2017-05-31
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology
Obviously, the original equipment gate head structure cannot meet the above functions, so it is necessary to develop a new type of equipment gate head structure
Method used
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Embodiment Construction
[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0025] Such as figure 1 , 2 Shown is a schematic diagram of the structure of the equipment gate head of the present invention. The equipment gate head includes a head body 3, and the head body 3 adopts a butterfly structure, thereby saving the occupied space in the containment vessel. The opening end of the head body 3 has a built-in cylinder section 2, the cylinder section 2 is fixedly connected with the head body 3, and the outer edge of the head body 3 is provided with a flange 1, which is matched with the containment shell. The inner cylinder joint assembly 12 is connected by bolts, and a sealing gasket 13 is provided at the joint. Open the bolts to lift the gate head of the entire equipment and open the operation channel of large equipment. Therefore, the present invention facilitates the opening and closing oper...
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The invention discloses an equipment gate end enclosure. An end enclosure body is of a butterfly-shaped structure; the outer edge of the end enclosure is provided with a flange connected with a safety shell; the opening end of the end enclosure body is internally provided with a shell section which is fixedly connected with the end enclosure body and is provided with a tensioning device for controlling and regulating the roundness of the shell section; guide devices for guiding and positioning are arranged at two sides of the end enclosure body. According to the equipment gate end enclosure, an equipment gate is convenient to start and close, and the occupation space of the equipment gate is saved; the end enclosure can be prevented from being deformed excessively due to external force, and the rigidity of the end enclosure and the flange is improved, so that the seal performance of the integral structure of the equipment gate is ensured; the end enclosure can be accurately positioned to the designated position under external constraint; the end enclosure can be effectively prevented from shaking, and the shock resistance of the end enclosure can be improved, and the stability of the gate is ensured.
Description
technical field [0001] The invention belongs to the technical field of equipment gates in large nuclear power plants, and in particular relates to an equipment gate head. Background technique [0002] With the improvement and development of nuclear power technology, the reactor type of nuclear power plants is developing toward high power, especially represented by the current third-generation nuclear power technology. After the containment dome is installed, the only access for large equipment to enter and exit the containment is the equipment gate. Due to the increase of the power of the nuclear power plant, the main equipment in the containment is constantly increasing. In order to allow large equipment to enter and exit the containment smoothly, it is necessary to have an equipment gate with a larger passage. After the Fukushima accident, the seismic requirements for nuclear power plants became more stringent, and the ground peak acceleration was further increased. When...
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IPC IPC(8): G21C13/073
CPCG21C13/073Y02E30/30
Inventor 陈科范章梁文元刘天斌赵伟郑岳山
Owner CHINA NUCLEAR POWER ENG CO LTD