Boiling water nuclear reactor
专利汇可以提供Boiling water nuclear reactor专利检索，专利查询，专利分析的服务。并且PURPOSE: To improve economy by segmenting a fuel assembly to plural regions in the plane perpendicular to the flow direction of a coolant (moderator) and using U fuel for the upper stream side region and fuel contg. Pu for the down stream side region.
CONSTITUTION: The fuel assembly 1 is segmented to the lower region 1 and the upper region 3 by an intermediate tie plate 4 provided in the part upper than the central part thereof. For example, 150 pieces of UO
2 fuel rods 5 are disposed in the region 2 and 312 pieces of MOX fuel rods 6 are disposed in the region 3. The assembly 1 is disposed with 19 pieces of cluster control rod guide pipes 7 over the entire length thereof. The coolant flows from the lower part to the upper part. The hydrogen to fuel atom number ratios adequate for the higher burnup is attained in the region 2 in such a manner and the fuel corresponding to the higher burnup is attained without decreasing the quantity of the fuel. The hydrogen to fuel atom number ratios can be set at the value adequate for improving the conversion ratio with the clearance wider than for a high conversion light water reactor in the region 3. As a result, the economy is enhanced.
COPYRIGHT: (C)1990,JPO&Japio，下面是Boiling water nuclear reactor专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 用于嬗变和展平功率的MOX燃料组件及展平功率的方法 | 2020-05-12 | 397 |
| 模块间燃料倒换 | 2020-05-08 | 308 |
| Fuel assembly and fuel rod | 2020-05-18 | 615 |
| Fuel assembly | 2020-05-23 | 591 |
| Cutting tool of thimble tube | 2020-05-25 | 412 |
| Set of mox fuel assemblies | 2020-05-19 | 876 |
| Method of surveying fuel assembly | 2020-05-20 | 587 |
| METHOD FOR SETTING EQUIVALENT FISSILE COEFFICIENT | 2020-05-15 | 896 |
| Mox fuel assembly for pressurized water reactors | 2020-05-23 | 528 |
| 경수로용 연료 집합체, 경수로 노심, 경수로용 연료 집합체 제조 방법 및 MOX 연료 집합체 제조 방법 | 2020-05-12 | 271 |
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