| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_53b4d53983adbf56dd0e7d0bf96f8ce5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F2113-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E10-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F2119-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F30-17 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F119-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F113-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F30-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F30-17 |
| filingDate |
2020-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc3ff4782041f25f11016df64115ac89
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cfc0672b09aa138378df644d39644826
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7166665a4d2b89993c71c9d3ad6bf119
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3b20c262257739564c9d49d02dd85715
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3918ba7406377dcb4ce3db7eb090ee95
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7de8b5dbf5e478c051b0e353781a8c12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c89bcdb462e8c2f87f7989e4ace3640e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f94e7ea7a23afb4802708558e7becb4 |
| publicationDate |
2021-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-112528431-A |
| titleOfInvention |
Calculation method of optimum speed of variable speed Francis turbine based on similarity principle |
| abstract |
The invention discloses a method for calculating the optimum rotational speed of a variable-speed Francis turbine based on a similar principle, comprising the following steps: S1. Determine the unit rotational speed n 11 , the unit flow Q 11 , the unit output N 11 , and the actual rotational speed n of the hydraulic turbine unit to be calculated , the actual flow Q, the actual output N, the diameter of the runner D 1 and the effective head H; S2. Use the similarity principle to establish a theoretical calculation model for the optimal rotational speed of the hydraulic turbine unit; S3. Calculate the hydraulic turbine unit according to the above calculation model. the optimum speed under the conditions. The present invention proposes to obtain the optimal rotational speed theoretical calculation model of the variable-speed Francis turbine through numerical experiments and the use of similar principles, which enriches the theoretical knowledge of the hydraulic turbine. The hydroelectric unit is controlled by variable speed. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113339177-A |
| priorityDate |
2020-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |