CENTRIFUGAL SEPARATOR AND OPERATION METHOD OF THE SAME
PROBLEM TO BE SOLVED: To solve a problem caused by the occurrence of a power failure in a centrifugal separator during a normal operation.SOLUTION: This centrifugal separator includes a rotation bowl for separating liquid treated into a solid matter and a separation liquid by the action of a centrif...
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| creator | OKAYASU YUJI GONDO MASAYUKI |
| description | PROBLEM TO BE SOLVED: To solve a problem caused by the occurrence of a power failure in a centrifugal separator during a normal operation.SOLUTION: This centrifugal separator includes a rotation bowl for separating liquid treated into a solid matter and a separation liquid by the action of a centrifugal force, a conveyor that is arranged in the rotation bowl and rotated at a differential speed relative to the rotation bowl, a main drive motor connected to the rotation bowl, a back drive motor connected to the conveyor, a main-drive side inverter device electrically connected between a power source and the main drive motor, and a back-drive side inverter device electrically connected between the power source and the back drive motor. In the operation method of the centrifugal separator, when a power failure occurs, regenerative power generated in the main drive motor and back drive motor by the conveyor and the rotation bowl rotated by an inertia force is fed to a control power source and a power source of the back-drive side and/or the main-drive side inverter device, and the rotation bowl and the conveyor are decelerated while a state that they rotate at a relative differential speed is kept. |
| format | Patent |
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In the operation method of the centrifugal separator, when a power failure occurs, regenerative power generated in the main drive motor and back drive motor by the conveyor and the rotation bowl rotated by an inertia force is fed to a control power source and a power source of the back-drive side and/or the main-drive side inverter device, and the rotation bowl and the conveyor are decelerated while a state that they rotate at a relative differential speed is kept.</description><language>eng</language><subject>CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES ; CENTRIFUGES ; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS ; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION ; PERFORMING OPERATIONS ; TRANSPORTING</subject><creationdate>2011</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20111117&DB=EPODOC&CC=JP&NR=2011230040A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20111117&DB=EPODOC&CC=JP&NR=2011230040A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OKAYASU YUJI</creatorcontrib><creatorcontrib>GONDO MASAYUKI</creatorcontrib><title>CENTRIFUGAL SEPARATOR AND OPERATION METHOD OF THE SAME</title><description>PROBLEM TO BE SOLVED: To solve a problem caused by the occurrence of a power failure in a centrifugal separator during a normal operation.SOLUTION: This centrifugal separator includes a rotation bowl for separating liquid treated into a solid matter and a separation liquid by the action of a centrifugal force, a conveyor that is arranged in the rotation bowl and rotated at a differential speed relative to the rotation bowl, a main drive motor connected to the rotation bowl, a back drive motor connected to the conveyor, a main-drive side inverter device electrically connected between a power source and the main drive motor, and a back-drive side inverter device electrically connected between the power source and the back drive motor. In the operation method of the centrifugal separator, when a power failure occurs, regenerative power generated in the main drive motor and back drive motor by the conveyor and the rotation bowl rotated by an inertia force is fed to a control power source and a power source of the back-drive side and/or the main-drive side inverter device, and the rotation bowl and the conveyor are decelerated while a state that they rotate at a relative differential speed is kept.</description><subject>CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES</subject><subject>CENTRIFUGES</subject><subject>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</subject><subject>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><subject>PERFORMING OPERATIONS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDBzdvULCfJ0C3V39FEIdg1wDHIM8Q9ScPRzUfAPcAVyPP39FHxdQzz8gQJuCiEergrBjr6uPAysaYk5xam8UJqbQcnNNcTZQze1ID8-tbggMTk1L7Uk3ivAyMDQ0MjYwMDEwNGYKEUAVgcoEQ</recordid><startdate>20111117</startdate><enddate>20111117</enddate><creator>OKAYASU YUJI</creator><creator>GONDO MASAYUKI</creator><scope>EVB</scope></search><sort><creationdate>20111117</creationdate><title>CENTRIFUGAL SEPARATOR AND OPERATION METHOD OF THE SAME</title><author>OKAYASU YUJI ; GONDO MASAYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2011230040A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2011</creationdate><topic>CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES</topic><topic>CENTRIFUGES</topic><topic>CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS</topic><topic>CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><topic>PERFORMING OPERATIONS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>OKAYASU YUJI</creatorcontrib><creatorcontrib>GONDO MASAYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OKAYASU YUJI</au><au>GONDO MASAYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CENTRIFUGAL SEPARATOR AND OPERATION METHOD OF THE SAME</title><date>2011-11-17</date><risdate>2011</risdate><abstract>PROBLEM TO BE SOLVED: To solve a problem caused by the occurrence of a power failure in a centrifugal separator during a normal operation.SOLUTION: This centrifugal separator includes a rotation bowl for separating liquid treated into a solid matter and a separation liquid by the action of a centrifugal force, a conveyor that is arranged in the rotation bowl and rotated at a differential speed relative to the rotation bowl, a main drive motor connected to the rotation bowl, a back drive motor connected to the conveyor, a main-drive side inverter device electrically connected between a power source and the main drive motor, and a back-drive side inverter device electrically connected between the power source and the back drive motor. In the operation method of the centrifugal separator, when a power failure occurs, regenerative power generated in the main drive motor and back drive motor by the conveyor and the rotation bowl rotated by an inertia force is fed to a control power source and a power source of the back-drive side and/or the main-drive side inverter device, and the rotation bowl and the conveyor are decelerated while a state that they rotate at a relative differential speed is kept.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES CENTRIFUGES CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PERFORMING OPERATIONS TRANSPORTING |
| title | CENTRIFUGAL SEPARATOR AND OPERATION METHOD OF THE SAME |
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