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Lead-pouring technological method of spent fuel transfer container

A technology of transportation container and process method, which is applied in the field of lead filling process of spent fuel transportation container, which can solve the problems of high price and achieve the effects of easy control of speed, clean environment pollution, and uniform cooling

Active Publication Date: 2017-07-07
西安核设备有限公司
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Problems solved by technology

[0005] At present, the United States, the United Kingdom, France, and Japan are representative countries capable of designing and manufacturing large-scale spent fuel transportation containers in the world, but the prices of containers designed and manufactured by these countries are very expensive, and a container needs nearly 30 million yuan

Method used

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  • Lead-pouring technological method of spent fuel transfer container

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Embodiment Construction

[0041] as attached figure 1 As shown, a process method for filling lead in a spent fuel transport container includes the following steps:

[0042] Step 1: Functional test of lead melting furnace

[0043] The content of the functional test of the lead melting furnace includes: the working temperature test of the lead melting furnace, the unobstructed test of the output pipeline of the lead melting furnace, the state test of the pipeline valve tooling and the sealing test.

[0044] When the above tests are all passed, it is judged that the lead melting furnace is functioning normally and can be used for subsequent steps.

[0045] Step 2: Check the Thermocouple Setup

[0046] In this step, thermocouples are firstly set, that is, the thermocouples are set on the inner and outer walls of the part to be poured, the lead melting furnace and the output pipeline of the lead melting furnace.

[0047] The thermocouple arranged on the lead melting furnace is arranged at the bottom of t...

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Abstract

The invention belongs to a lead-pouring method, in particular to a lead-pouring technological method of a spent fuel transfer container. The method comprises the following steps: step 1, a functional test of a lead smelting furnace; step 2, test of configuration of a thermocouple; step 3, cleaning of a lead pig; step 4, loading of the lead pig into the lead smelting furnace; step 5, starting of lead smelting; step 6, temperature keeping of the lead smelting furnace and stirring; step 7, starting of lead pouring; step 8, finishing of lead pouring; step 9, temperature keeping of lead liquid; step 10, layer-by-layer cooling of lead liquid; step 11, removal of lead pouring equipment; step 12, testing of shielding properties of a lead layer gamma. The lead-pouring method has the following advantages: 1, a water-cooling annular pipe lifting device is utilized so that lead layers can be uniformly cooled at easily-controllable speed; 2, lead smelting and temperature keeping of lead layers utilize advanced natural gas and ultra-red radiation for heating so that utilization rate of heat is high; and environmental pollution of cleaning is little.

Description

technical field [0001] The invention belongs to a method for filling lead, in particular to a process method for filling a spent fuel transport container with lead. Background technique [0002] With the development of the domestic nuclear power industry, the existing nuclear power units have been in service for many years, and the storage of spent fuel in the nuclear island is about to reach its limit, which must be transferred to the reprocessing plant for reprocessing. The storage and transportation of spent fuel is an indispensable and important part of the nuclear fuel cycle industry. At present, the existing domestic imported spent fuel transportation containers can no longer meet the requirements of domestic spent fuel turnover transportation, and imported spent fuel transportation containers from abroad are not conducive to my country's The development of localization of equipment is also not conducive to the export requirements of my country's nuclear power developme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F5/008G21F5/06
CPCG21F5/008G21F5/06
Inventor 雷阿妮贾卫卫马永虔王丛杰高虎贤
Owner 西安核设备有限公司
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