AXIAL FLOW TURBINE
To provide an axial flow turbine in which a cooling medium of optimum pressure is supplied into a wheel space downstream of the last turbine stage regardless of a load.SOLUTION: An axial flow turbine 1 of an embodiment comprises: a turbine rotor 20 penetratingly provided inside an inner casing; roto...
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| creator | MAEDA HIDEYUKI TSURUTA KAZUTAKA MORISAWA YUICHI IWAI SHOGO INOMATA ASAKO |
| description | To provide an axial flow turbine in which a cooling medium of optimum pressure is supplied into a wheel space downstream of the last turbine stage regardless of a load.SOLUTION: An axial flow turbine 1 of an embodiment comprises: a turbine rotor 20 penetratingly provided inside an inner casing; rotor wheels 21 formed in a plurality of stages in the axial direction on the outer peripheral surface of the turbine rotor 20; a ground seal part 50 that is provided on the downstream side of the last stage rotor wheel 21 at a predetermined space therefrom and seals between the turbine rotor 20 and the inner casing 11; a seal part 80 that is provided between the last stage rotor wheel 21 and the ground seal part 50 and prevents a working medium passing last stage rotor blades 40 from flowing into the turbine rotor side; and a cooling medium supplying mechanism 90A that directly supplies a cooling medium into a wheel space 81 surrounded by the last stage rotor wheel 21, turbine rotor 20, ground seal part 50 and seal part 80.SELECTED DRAWING: Figure 2
【課題】負荷によらず、最終段のタービン段落の下流のホイールスペースへ最適な圧力の冷却媒体を供給する軸流タービンを提供する。【解決手段】実施形態の軸流タービン１は、内部ケーシング内に貫設されたタービンロータ２０と、タービンロータ２０の外周面に軸方向に複数段形成されたロータホイール２１と、最終段のロータホイール２１の下流側に所定の間隙をあけて設けられ、タービンロータ２０と内部ケーシング１１との間をシールするグランドシール部５０と、最終段のロータホイール２１とグランドシール部５０との間に設けられ、最終段の動翼４０を通過した作動媒体のタービンロータ側への流入を防止するシール部８０と、最終段のロータホイール２１、タービンロータ２０、グランドシール部５０およびシール部８０で囲まれるホイールスペース８１に冷却媒体を直接供給する冷却媒体供給機構９０Ａとを備える。【選択図】図２ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2021124052A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2021124052A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2021124052A3</originalsourceid><addsrcrecordid>eNrjZBByjPB09FFw8_EPVwgJDXLy9HPlYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkaGhkYmBqZGjsZEKQIAbpMeUw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>AXIAL FLOW TURBINE</title><source>esp@cenet</source><creator>MAEDA HIDEYUKI ; TSURUTA KAZUTAKA ; MORISAWA YUICHI ; IWAI SHOGO ; INOMATA ASAKO</creator><creatorcontrib>MAEDA HIDEYUKI ; TSURUTA KAZUTAKA ; MORISAWA YUICHI ; IWAI SHOGO ; INOMATA ASAKO</creatorcontrib><description>To provide an axial flow turbine in which a cooling medium of optimum pressure is supplied into a wheel space downstream of the last turbine stage regardless of a load.SOLUTION: An axial flow turbine 1 of an embodiment comprises: a turbine rotor 20 penetratingly provided inside an inner casing; rotor wheels 21 formed in a plurality of stages in the axial direction on the outer peripheral surface of the turbine rotor 20; a ground seal part 50 that is provided on the downstream side of the last stage rotor wheel 21 at a predetermined space therefrom and seals between the turbine rotor 20 and the inner casing 11; a seal part 80 that is provided between the last stage rotor wheel 21 and the ground seal part 50 and prevents a working medium passing last stage rotor blades 40 from flowing into the turbine rotor side; and a cooling medium supplying mechanism 90A that directly supplies a cooling medium into a wheel space 81 surrounded by the last stage rotor wheel 21, turbine rotor 20, ground seal part 50 and seal part 80.SELECTED DRAWING: Figure 2
【課題】負荷によらず、最終段のタービン段落の下流のホイールスペースへ最適な圧力の冷却媒体を供給する軸流タービンを提供する。【解決手段】実施形態の軸流タービン１は、内部ケーシング内に貫設されたタービンロータ２０と、タービンロータ２０の外周面に軸方向に複数段形成されたロータホイール２１と、最終段のロータホイール２１の下流側に所定の間隙をあけて設けられ、タービンロータ２０と内部ケーシング１１との間をシールするグランドシール部５０と、最終段のロータホイール２１とグランドシール部５０との間に設けられ、最終段の動翼４０を通過した作動媒体のタービンロータ側への流入を防止するシール部８０と、最終段のロータホイール２１、タービンロータ２０、グランドシール部５０およびシール部８０で囲まれるホイールスペース８１に冷却媒体を直接供給する冷却媒体供給機構９０Ａとを備える。【選択図】図２</description><language>eng ; jpn</language><subject>AIR INTAKES FOR JET-PROPULSION PLANTS ; BLASTING ; COMBUSTION ENGINES ; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ; ENGINE PLANTS IN GENERAL ; GAS-TURBINE PLANTS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ; STEAM ENGINES ; WEAPONS</subject><creationdate>2021</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=20210830&DB=EPODOC&CC=JP&NR=2021124052A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210830&DB=EPODOC&CC=JP&NR=2021124052A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MAEDA HIDEYUKI</creatorcontrib><creatorcontrib>TSURUTA KAZUTAKA</creatorcontrib><creatorcontrib>MORISAWA YUICHI</creatorcontrib><creatorcontrib>IWAI SHOGO</creatorcontrib><creatorcontrib>INOMATA ASAKO</creatorcontrib><title>AXIAL FLOW TURBINE</title><description>To provide an axial flow turbine in which a cooling medium of optimum pressure is supplied into a wheel space downstream of the last turbine stage regardless of a load.SOLUTION: An axial flow turbine 1 of an embodiment comprises: a turbine rotor 20 penetratingly provided inside an inner casing; rotor wheels 21 formed in a plurality of stages in the axial direction on the outer peripheral surface of the turbine rotor 20; a ground seal part 50 that is provided on the downstream side of the last stage rotor wheel 21 at a predetermined space therefrom and seals between the turbine rotor 20 and the inner casing 11; a seal part 80 that is provided between the last stage rotor wheel 21 and the ground seal part 50 and prevents a working medium passing last stage rotor blades 40 from flowing into the turbine rotor side; and a cooling medium supplying mechanism 90A that directly supplies a cooling medium into a wheel space 81 surrounded by the last stage rotor wheel 21, turbine rotor 20, ground seal part 50 and seal part 80.SELECTED DRAWING: Figure 2
【課題】負荷によらず、最終段のタービン段落の下流のホイールスペースへ最適な圧力の冷却媒体を供給する軸流タービンを提供する。【解決手段】実施形態の軸流タービン１は、内部ケーシング内に貫設されたタービンロータ２０と、タービンロータ２０の外周面に軸方向に複数段形成されたロータホイール２１と、最終段のロータホイール２１の下流側に所定の間隙をあけて設けられ、タービンロータ２０と内部ケーシング１１との間をシールするグランドシール部５０と、最終段のロータホイール２１とグランドシール部５０との間に設けられ、最終段の動翼４０を通過した作動媒体のタービンロータ側への流入を防止するシール部８０と、最終段のロータホイール２１、タービンロータ２０、グランドシール部５０およびシール部８０で囲まれるホイールスペース８１に冷却媒体を直接供給する冷却媒体供給機構９０Ａとを備える。【選択図】図２</description><subject>AIR INTAKES FOR JET-PROPULSION PLANTS</subject><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>GAS-TURBINE PLANTS</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</subject><subject>STEAM ENGINES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBByjPB09FFw8_EPVwgJDXLy9HPlYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBkaGhkYmBqZGjsZEKQIAbpMeUw</recordid><startdate>20210830</startdate><enddate>20210830</enddate><creator>MAEDA HIDEYUKI</creator><creator>TSURUTA KAZUTAKA</creator><creator>MORISAWA YUICHI</creator><creator>IWAI SHOGO</creator><creator>INOMATA ASAKO</creator><scope>EVB</scope></search><sort><creationdate>20210830</creationdate><title>AXIAL FLOW TURBINE</title><author>MAEDA HIDEYUKI ; TSURUTA KAZUTAKA ; MORISAWA YUICHI ; IWAI SHOGO ; INOMATA ASAKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2021124052A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2021</creationdate><topic>AIR INTAKES FOR JET-PROPULSION PLANTS</topic><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>GAS-TURBINE PLANTS</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</topic><topic>STEAM ENGINES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MAEDA HIDEYUKI</creatorcontrib><creatorcontrib>TSURUTA KAZUTAKA</creatorcontrib><creatorcontrib>MORISAWA YUICHI</creatorcontrib><creatorcontrib>IWAI SHOGO</creatorcontrib><creatorcontrib>INOMATA ASAKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MAEDA HIDEYUKI</au><au>TSURUTA KAZUTAKA</au><au>MORISAWA YUICHI</au><au>IWAI SHOGO</au><au>INOMATA ASAKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>AXIAL FLOW TURBINE</title><date>2021-08-30</date><risdate>2021</risdate><abstract>To provide an axial flow turbine in which a cooling medium of optimum pressure is supplied into a wheel space downstream of the last turbine stage regardless of a load.SOLUTION: An axial flow turbine 1 of an embodiment comprises: a turbine rotor 20 penetratingly provided inside an inner casing; rotor wheels 21 formed in a plurality of stages in the axial direction on the outer peripheral surface of the turbine rotor 20; a ground seal part 50 that is provided on the downstream side of the last stage rotor wheel 21 at a predetermined space therefrom and seals between the turbine rotor 20 and the inner casing 11; a seal part 80 that is provided between the last stage rotor wheel 21 and the ground seal part 50 and prevents a working medium passing last stage rotor blades 40 from flowing into the turbine rotor side; and a cooling medium supplying mechanism 90A that directly supplies a cooling medium into a wheel space 81 surrounded by the last stage rotor wheel 21, turbine rotor 20, ground seal part 50 and seal part 80.SELECTED DRAWING: Figure 2
【課題】負荷によらず、最終段のタービン段落の下流のホイールスペースへ最適な圧力の冷却媒体を供給する軸流タービンを提供する。【解決手段】実施形態の軸流タービン１は、内部ケーシング内に貫設されたタービンロータ２０と、タービンロータ２０の外周面に軸方向に複数段形成されたロータホイール２１と、最終段のロータホイール２１の下流側に所定の間隙をあけて設けられ、タービンロータ２０と内部ケーシング１１との間をシールするグランドシール部５０と、最終段のロータホイール２１とグランドシール部５０との間に設けられ、最終段の動翼４０を通過した作動媒体のタービンロータ側への流入を防止するシール部８０と、最終段のロータホイール２１、タービンロータ２０、グランドシール部５０およびシール部８０で囲まれるホイールスペース８１に冷却媒体を直接供給する冷却媒体供給機構９０Ａとを備える。【選択図】図２</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS |
| title | AXIAL FLOW TURBINE |
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