http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1112346-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7b59574be3a6f45c6ef63a1ef657320 |
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C7-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C17-108 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C13-067 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C3-326 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C3-348 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G21C3-33 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C3-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C15-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C7-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C17-108 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C3-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C3-348 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C13-067 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G21C3-326 |
| filingDate | 1965-07-28^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30927884d4fe1f9c081d0ac7820c99b8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5fc07e7dfb9dcb3f60708415d5d7b98 |
| publicationDate | 1968-05-01^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1112346-A |
| titleOfInvention | Improvements relating to nuclear reactors |
| abstract | 1,112,346. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 13 July, 1966 [28 July, 1965], No. 32379/65. Addition to 1,086,060. Heading G6C. A nuclear reactor comprises a fuel rod cluster with perforated guide tubes interspersed among the fuel rods, control pins insertable with clearance into the guide tubes, an operating assembly for inserting and withdrawing the control pins, and conduit means adapted when required to supply liquid coolant to the operating assembly, which coolant subsequently passes to the guide tubes to be sprayed therefrom over the fuel rods. Referring to Fig. 2, each cluster 3 is associated with an operating assembly 6 comprising a control mechanism housing 7 extending between a control mechanism support grid 8 and the upper core support grid 4, the housing 7 being openended and in communication with the cluster 3. Each cluster 3 comprises a number of spaced fuel rods (not shown) on a triangular lattice with spaces for guide tubes 9 in which control pins 10 are insertable with clearance. The guide tubes 9 have perforations 14 distributed over their length, those of one tube being staggered relative to those of an adjacent tube. Each housing 7 contains a piston 15 releasably connected at its lower end to a carrier 16 from which the control pins 10 are carried. The upper end of the piston 15 is connected by a releasable connection 17 to a driven member 18 and is housed in an apertured dashpot 19 mounted from the housing 7. A scram spring 20 extends between the carrier 16 and the grid 8, and in the region of the grid 8 the housing 7 communicates with a housing 21 of a control mechanism drive system 22 forming part of the operating assembly 6. The driven member 18 of the system 22 is actuated by a motor (not shown) mounted on the reactor pressure vessel. The housing 21 is in valved communication with an emergency coolant supply in a storage tank and when required, coolant from this tank is caused to flow through the housing 21 into the upper ends of the tubes 9 to spray out through the perforations 14 on to adjacent fuel rods (as indicated by arrows 28). The perforations 14 may be absent from the lower ends of the tubes 9, or they may be metering orifices of a different size so that by a dashpot action the pins 10 are subject to endof-stroke cushioning when a rapid shut-down insertion is made. The emergency coolant supply may be under gravity from an elevated storage tank or by means of a pump system. In the case of a pressurized water reactor, there may be a pump of high pressure and low volume delivery suitable for meeting the occurrence of a low rate of depressurization and escape of the pressurized water coolant and also a pump of low pressure and high volume delivery where the same occurrence is at a fast rate. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0123603-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4683103-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2160698-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4687621-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4657726-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2544539-A1 |
| priorityDate | 1963-12-02^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419512635 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID962 |
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