A nuclear fuel assembly transfer device
A technology of nuclear fuel components and transfer devices, which is applied in the fields of reactor fuel components, nuclear engineering, nuclear power generation, etc. It can solve the problems of prolonged refueling time, improve equipment reliability, improve work efficiency, and reduce occupational radiation doses.
Active Publication Date: 2018-03-30
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology
With the increase in the design power of new nuclear power plants, the number of fuel assemblies that need to be replaced during the refueling phase increases significantly, and the refueling time is prolonged. Both the economics of the power plant and the accumulation of radiation doses for on-site operators are facing new problems. Develop more efficient methods and equipment for the transfer of nuclear fuel assemblies
Method used
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[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0021] Such as figure 1 As shown, a nuclear fuel assembly transfer device provided by the present invention includes a transfer channel 1 connected between the reactor building and the fuel building, and a transfer track that runs through the transfer channel is provided in the transfer channel 1. For the transport trolley 3 loaded with fuel assemblies, the transfer track includes an up track 2 and a down track 4, the up track 2 is arranged above the down track 4, preferably the up track 2 and the down track 4 are located on the same vertical plane. Both ends of the up track 2 are respectively provided with a down track changing device 5 and an up track changing device 6 for track switching. Among them, the transfer channel 1 is arranged horizontally and has the functions of high pressure sealing and radiation shielding. The design of the double-tra...
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The invention belongs to design of nuclear fuel storage and transportation equipment and particularly relates to a nuclear fuel assembly transferring device. The nuclear fuel assembly transferring device comprises a transferring passage which is connected between a reactor plant and a fuel plant, wherein a transferring track which penetrates through the transferring passage is arranged in the transferring passage, a transporting trolley which is used for loading a fuel assembly is arranged on the transferring track, the transferring track comprises an up-run track and a down-run track, the up-run track is arranged above the down-run track, and a down-run transfer track changing device and an up-run transfer track changing device which are applied to track transfer are respectively arranged at the two ends of the up-run track. According to the nuclear fuel assembly transferring device, through adopting a double-track design, the working efficiency of a nuclear power plant during refueling is increased, and an equipment guarantee is provided for increasing the economical efficiency of the power plant and lowering the occupational radiation dose for staff. Meanwhile, track transfer mechanisms employ a passive control technology, are independent of a power supply and do not depend on manual or automatic signal control, so that the equipment reliability is improved.
Description
technical field [0001] The invention belongs to the design of nuclear fuel storage and transportation equipment, in particular to a nuclear fuel assembly transfer device. Background technique [0002] In nuclear power engineering design, nuclear fuel must be replaced regularly. During the refueling process of a nuclear power plant, the spent fuel assemblies in the reactor building must first be loaded into the carrier, and then the spent fuel assemblies must be unloaded after entering the fuel building through the narrow and long transfer channel with the help of a transport trolley, hoisted and placed in the storage grid, and then The new fuel is taken out from the fuel building, sent into the reactor building by the fuel transfer device, and placed in the designated position according to the predetermined core design scheme. [0003] In existing PWR power plants, the fuel transfer device usually adopts a single-track design, and the on-site operator must wait for the fuel...
Claims
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IPC IPC(8): G21C19/18
CPCG21C19/18Y02E30/30
Inventor 毛喜道郭强吴明王晓江王世民赵侠元一单
Owner CHINA NUCLEAR POWER ENG CO LTD