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公开(公告)号：US20200232417A1
公开(公告)日：2020-07-23
申请号：US16743537
申请日：2020-01-15
发明人： Akito Kunimoto , Keita Mori
IPC分类号： F02K1/82 , F01K13/00 , F01D25/24 , F01K3/00 , G10K11/175
摘要： A steam turbine 1 includes a turbine body 11 which includes a rotor 5 which is configured to rotate around an axis Ac, and a casing 6 which covers the rotor 5 to form a flow path through which steam flows in an axis Ac direction, together with the rotor 5, a thermal insulation member 12 which is provided to be in contact with an outer surface of the casing 6 in a high-pressure side region 61 out of the high-pressure side region 61 and a low-pressure side region 62 of the steam in the axis Ac direction of the casing 6, and a soundproof cover 13 which covers the low-pressure side region 62 out of the high-pressure side region 61 and the low-pressure side region 62 via a space between the outer surface of the casing 6 and the soundproof cover 13.
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公开(公告)号：US11702962B2
公开(公告)日：2023-07-18
申请号：US17381680
申请日：2021-07-21
发明人： Masatomo Todo , Akito Kunimoto
CPC分类号： F01D25/30 , F01D1/10 , F01D9/041 , F01D11/02 , F05D2220/31
摘要： A steam turbine has a diffuser that is configured to guide steam to an outside of a casing. The diffuser has an outer guide that gradually expands to an outer side in a radial direction and an inner guide that is disposed at intervals to an inner side in the radial direction with respect to the outer guide. The inner guide has an inner curved diameter-expanded portion that gradually expands to the outer side in the radial direction while being curved from the first side to the second side in the axial direction. The outer guide has a first diameter-expanded portion that gradually expands to the outer side in the radial direction with a first radius of curvature, and a second diameter-expanded portion that gradually expands to the outer side in the radial direction with a second radius of curvature larger than the first radius of curvature.
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公开(公告)号：US20200240271A1
公开(公告)日：2020-07-30
申请号：US16773316
申请日：2020-01-27
发明人： Takuro Koda , Kazuaki Sugimoto , Akito Kunimoto , Tomoaki Nogami
摘要： A steam turbine system 1 includes a steam turbine 10including a plurality of rotor blades 16; a first mixed steam supply pipe 21 that supplies the steam, which is supplied from a steam supply source 40 capable of supplying the steam with fluctuating pressure, to an upstream stage Sa within the casing 11; a second mixed steam supply pipe 22 that supplies the steam to the second stepped part Sb; an adjusting unit 25 that adjusts a flow rate of the steam supplied to the first stepped part Sa and the second stepped part Sb; and a control unit 30 that controls the adjusting unit 25 on the basis of a differential pressure between a pressure P0 of the steam supplied from the steam supply source 40 and a pressure in the first stepped part Sa.
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公开(公告)号：US20220082025A1
公开(公告)日：2022-03-17
申请号：US17381680
申请日：2021-07-21
发明人： Masatomo Todo , Akito Kunimoto
摘要： A steam turbine has a diffuser that is configured to guide steam to an outside of a casing. The diffuser has an outer guide that gradually expands to an outer side in a radial direction and an inner guide that is disposed at intervals to an inner side in the radial direction with respect to the outer guide. The inner guide has an inner curved diameter-expanded portion that gradually expands to the outer side in the radial direction while being curved from the first side to the second side in the axial direction. The outer guide has a first diameter-expanded portion that gradually expands to the outer side in the radial direction with a first radius of curvature, and a second diameter-expanded portion that gradually expands to the outer side in the radial direction with a second radius of curvature larger than the first radius of curvature.
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公开(公告)号：US11162363B2
公开(公告)日：2021-11-02
申请号：US16773316
申请日：2020-01-27
发明人： Takuro Koda , Kazuaki Sugimoto , Akito Kunimoto , Tomoaki Nogami
摘要： A steam turbine system 1 includes a steam turbine 10 including a plurality of rotor blades 16; a first mixed steam supply pipe 21 that supplies the steam, which is supplied from a steam supply source 40 capable of supplying the steam with fluctuating pressure, to an upstream stage Sa within the casing 11; a second mixed steam supply pipe 22 that supplies the steam to the second stepped part Sb; an adjusting unit 25 that adjusts a flow rate of the steam supplied to the first stepped part Sa and the second stepped part Sb; and a control unit 30 that controls the adjusting unit 25 on the basis of a differential pressure between a pressure P0 of the steam supplied from the steam supply source 40 and a pressure in the first stepped part Sa.
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